Commit Graph

578 Commits

Author SHA1 Message Date
Simon Marchi
4aeddc50d7 gdb: remove symbol value macros
Remove all macros related to getting and setting some symbol value:

    #define SYMBOL_VALUE(symbol)           (symbol)->value.ivalue
    #define SYMBOL_VALUE_ADDRESS(symbol)                         \
    #define SET_SYMBOL_VALUE_ADDRESS(symbol, new_value)    \
    #define SYMBOL_VALUE_BYTES(symbol)     (symbol)->value.bytes
    #define SYMBOL_VALUE_COMMON_BLOCK(symbol) (symbol)->value.common_block
    #define SYMBOL_BLOCK_VALUE(symbol)     (symbol)->value.block
    #define SYMBOL_VALUE_CHAIN(symbol)     (symbol)->value.chain
    #define MSYMBOL_VALUE(symbol)          (symbol)->value.ivalue
    #define MSYMBOL_VALUE_RAW_ADDRESS(symbol) ((symbol)->value.address + 0)
    #define MSYMBOL_VALUE_ADDRESS(objfile, symbol)                         \
    #define BMSYMBOL_VALUE_ADDRESS(symbol) \
    #define SET_MSYMBOL_VALUE_ADDRESS(symbol, new_value)   \
    #define MSYMBOL_VALUE_BYTES(symbol)    (symbol)->value.bytes
    #define MSYMBOL_BLOCK_VALUE(symbol)    (symbol)->value.block

Replace them with equivalent methods on the appropriate objects.

Change-Id: Iafdab3b8eefc6dc2fd895aa955bf64fafc59ed50
2022-04-11 10:45:36 -04:00
Tom Tromey
49a82d50c0 Remove dbx mode
This patch removes gdb's dbx mode.  Regression tested on x86-64 Fedora
34.
2022-03-31 13:48:07 -06:00
Tom Tromey
6cb06a8cda Unify gdb printf functions
Now that filtered and unfiltered output can be treated identically, we
can unify the printf family of functions.  This is done under the name
"gdb_printf".  Most of this patch was written by script.
2022-03-29 12:46:24 -06:00
Tom Tromey
0426ad513f Unify gdb puts functions
Now that filtered and unfiltered output can be treated identically, we
can unify the puts family of functions.  This is done under the name
"gdb_puts".  Most of this patch was written by script.
2022-03-29 12:46:24 -06:00
Jan Vrany
a2757c4ed6 gdb/mi: consistently notify user when GDB/MI client uses -thread-select
GDB notifies users about user selected thread changes somewhat
inconsistently as mentioned on gdb-patches mailing list here:

  https://sourceware.org/pipermail/gdb-patches/2022-February/185989.html

Consider GDB debugging a multi-threaded inferior with both CLI and GDB/MI
interfaces connected to separate terminals.

Assuming inferior is stopped and thread 1 is selected, when a thread
2 is selected using '-thread-select 2' command on GDB/MI terminal:

    -thread-select 2
    ^done,new-thread-id="2",frame={level="0",addr="0x00005555555551cd",func="child_sub_function",args=[],file="/home/jv/Projects/gdb/users_jv_patches/gdb/testsuite/gdb.mi/user-selected-context-sync.c",fullname="/home/uuu/gdb/gdb/testsuite/gdb.mi/user-selected-context-sync.c",line="30",arch="i386:x86-64"}
    (gdb)

and on CLI terminal we get the notification (as expected):

    [Switching to thread 2 (Thread 0x7ffff7daa640 (LWP 389659))]
    #0  child_sub_function () at /home/uuu/gdb/gdb/testsuite/gdb.mi/user-selected-context-sync.c:30
    30        volatile int dummy = 0;

However, now that thread 2 is selected, if thread 1 is selected
using 'thread-select --thread 1 1' command on GDB/MI terminal
terminal:

   -thread-select --thread 1 1
   ^done,new-thread-id="1",frame={level="0",addr="0x0000555555555294",func="main",args=[],file="/home/jv/Projects/gdb/users_jv_patches/gdb/testsuite/gdb.mi/user-selected-context-sync.c",fullname="/home/jv/Projects/gdb/users_jv_patches/gdb/testsuite/gdb.mi/user-selected-context-sync.c",line="66",arch="i386:x86-64"}
   (gdb)

but no notification is printed on CLI terminal, despite the fact
that user selected thread has changed.

The problem is that when `-thread-select --thread 1 1` is executed
then thread is switched to thread 1 before mi_cmd_thread_select () is
called, therefore the condition "inferior_ptid != previous_ptid"
there does not hold.

To address this problem, we have to move notification logic up to
mi_cmd_execute () where --thread option is processed and notify
user selected contents observers there if context changes.

However, this in itself breaks GDB/MI because it would cause context
notification to be sent on MI channel. This is because by the time
we notify, MI notification suppression is already restored (done in
mi_command::invoke(). Therefore we had to lift notification suppression
logic also up to mi_cmd_execute (). This change in made distinction
between mi_command::invoke() and mi_command::do_invoke() unnecessary
as all mi_command::invoke() did (after the change) was to call
do_invoke(). So this patches removes do_invoke() and moves the command
execution logic directly to invoke().

With this change, all gdb.mi tests pass, tested on x86_64-linux.

Co-authored-by: Andrew Burgess <aburgess@redhat.com>
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=20631
2022-03-16 15:08:22 +00:00
Tom Tromey
13835d88dc Use function view when iterating over block symbols
This changes iterate_over_block_local_vars and
iterate_over_block_arg_vars to take a gdb::function_view rather than a
function pointer and a user-data.  In one spot, this allows us to
remove a helper structure and helper function.  In another spot, this
looked more complicated, so I changed the helper function to be an
"operator()" -- also a simplification, just not as big.
2022-03-06 10:50:42 -07:00
Lancelot SIX
0b35f123c2 gdb: Respect the DW_CC_nocall attribute
It is possible for a compiler to optimize a function in a such ways that
the function does not follow the calling convention of the target.  In
such situation, the compiler can use the DW_AT_calling_convention
attribute with the value DW_CC_nocall to tell the debugger that it is
unsafe to call the function.  The DWARF5 standard states, in 3.3.1.1:

  > If the value of the calling convention attribute is the constant
  > DW_CC_nocall, the subroutine does not obey standard calling
  > conventions, and it may not be safe for the debugger to call this
  > subroutine.

Non standard calling convention can affect GDB's assumptions in multiple
ways, including how arguments are passed to the function, how values are
returned, and so on.  For this reason, it is unsafe for GDB to try to do
the following operations on a function with marked with DW_CC_nocall:

- call / print an expression requiring the function to be evaluated,
- inspect the value a function returns using the 'finish' command,
- force the value returned by a function using the 'return' command.

This patch ensures that if a command which relies on GDB's knowledge of
the target's calling convention is used on a function marked nocall, GDB
prints an appropriate message to the user and does not proceed with the
operation which is unreliable.

Note that it is still possible for someone to use a vendor specific
value for the DW_AT_calling_convention attribute for example to indicate
the use of an alternative calling convention.  This commit does not
prevent this, and target dependent code can be adjusted if one wanted to
support multiple calling conventions.

Tested on x86_64-Linux, with no regression observed.

Change-Id: I72970dae68234cb83edbc0cf71aa3d6002a4a540
2022-02-15 09:52:37 +00:00
Simon Marchi
5f9c5a63ce gdb: remove SYMBOL_TYPE macro
Add a getter and a setter for a symbol's type.  Remove the corresponding
macro and adjust all callers.

Change-Id: Ie1a137744c5bfe1df4d4f9ae5541c5299577c8de
2022-02-06 16:03:47 -05:00
Simon Marchi
d9743061f9 gdb: remove SYMBOL_IS_ARGUMENT macro
Add a getter and a setter for whether a symbol is an argument.  Remove
the corresponding macro and adjust all callers.

Change-Id: I71b4f0465f3dfd2ed8b9e140bd3f7d5eb8d9ee81
2022-02-06 16:03:46 -05:00
Simon Marchi
6c9c307c67 gdb: remove SYMBOL_DOMAIN macro
Add a getter and a setter for a symbol's domain.  Remove the
corresponding macro and adjust all callers.

Change-Id: I54465b50ac89739c663859a726aef8cdc6e4b8f3
2022-02-06 16:03:46 -05:00
Simon Marchi
66d7f48f80 gdb: remove SYMBOL_CLASS macro, add getter
Change-Id: I83211d5a47efc0564386e5b5ea4a29c00b1fd46a
2022-02-06 16:03:46 -05:00
Simon Marchi
1ee2e9f930 gdb: remove SYMTAB_LANGUAGE macro, add getter/setter
Add a getter and a setter for a symtab's language.  Remove the
corresponding macro and adjust all callers.

Change-Id: I9f4d840b11c19f80f39bac1bce020fdd1739e11f
2022-02-06 16:03:44 -05:00
Tom Tromey
1285ce8629 Always call the wrap_here method
This changes all existing calls to wrap_here to call the method on the
appropriate ui_file instead.  The choice of ui_file is determined by
context.
2022-01-26 15:19:13 -07:00
Tom Tromey
6c92c33953 Convert wrap_here to use integer parameter
I think it only really makes sense to call wrap_here with an argument
consisting solely of spaces.  Given this, it seemed better to me that
the argument be an int, rather than a string.  This patch is the
result.  Much of it was written by a script.
2022-01-26 15:19:13 -07:00
Tom Tromey
d4396e0e97 Reduce explicit use of gdb_stdout
In an earlier version of the pager rewrite series, it was important to
audit unfiltered output calls to see which were truly necessary.

This is no longer necessary, but it still seems like a decent cleanup
to change calls to avoid explicitly passing gdb_stdout.  That is,
rather than using something like fprintf_unfiltered with gdb_stdout,
the code ought to use plain printf_unfiltered instead.

This patch makes this change.  I went ahead and converted all the
_filtered calls I could find, as well, for the same clarity.
2022-01-25 15:22:49 -07:00
Tom Tromey
7904e9613e Move gdb_argv to gdbsupport
This moves the gdb_argv class to a new header in gdbsupport.
2022-01-18 10:14:42 -07:00
Joel Brobecker
4a94e36819 Automatic Copyright Year update after running gdb/copyright.py
This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.

For the avoidance of doubt, all changes in this commits were
performed by the script.
2022-01-01 19:13:23 +04:00
Simon Marchi
50888e42dc gdb: change functions returning value contents to use gdb::array_view
The bug fixed by this [1] patch was caused by an out-of-bounds access to
a value's content.  The code gets the value's content (just a pointer)
and then indexes it with a non-sensical index.

This made me think of changing functions that return value contents to
return array_views instead of a plain pointer.  This has the advantage
that when GDB is built with _GLIBCXX_DEBUG, accesses to the array_view
are checked, making bugs more apparent / easier to find.

This patch changes the return types of these functions, and updates
callers to call .data() on the result, meaning it's not changing
anything in practice.  Additional work will be needed (which can be done
little by little) to make callers propagate the use of array_view and
reap the benefits.

[1] https://sourceware.org/pipermail/gdb-patches/2021-September/182306.html

Change-Id: I5151f888f169e1c36abe2cbc57620110673816f3
2021-10-25 14:51:44 -04:00
Tom de Vries
84a6adfd4c [gdb] Make execute_command_to_string return string on throw
The pattern for using execute_command_to_string is:
...
  std::string output;
  output = execute_fn_to_string (fn, term_out);
...

This results in a problem when using it in a try/catch:
...
  try
    {
      output = execute_fn_to_string (fn, term_out)
    }
  catch (const gdb_exception &e)
    {
      /* Use output.  */
    }
...

If an expection was thrown during execute_fn_to_string, then the output
remains unassigned, while it could be worthwhile to known what output was
generated by gdb before the expection was thrown.

Fix this by returning the string using a parameter instead:
...
  execute_fn_to_string (output, fn, term_out)
...

Also add a variant without string parameter, to support places where the
function is used while ignoring the result:
...
  execute_fn_to_string (fn, term_out)
...

Tested on x86_64-linux.
2021-10-09 18:58:30 +02:00
Simon Marchi
e0700ba44c gdb: make string-like set show commands use std::string variable
String-like settings (var_string, var_filename, var_optional_filename,
var_string_noescape) currently take a pointer to a `char *` storage
variable (typically global) that holds the setting's value.  I'd like to
"mordernize" this by changing them to use an std::string for storage.

An obvious reason is that string operations on std::string are often
easier to write than with C strings.  And they avoid having to do any
manual memory management.

Another interesting reason is that, with `char *`, nullptr and an empty
string often both have the same meaning of "no value".  String settings
are initially nullptr (unless initialized otherwise).  But when doing
"set foo" (where `foo` is a string setting), the setting now points to
an empty string.  For example, solib_search_path is nullptr at startup,
but points to an empty string after doing "set solib-search-path".  This
leads to some code that needs to check for both to check for "no value".
Or some code that converts back and forth between NULL and "" when
getting or setting the value.  I find this very error-prone, because it
is very easy to forget one or the other.  With std::string, we at least
know that the variable is not "NULL".  There is only one way of
representing an empty string setting, that is with an empty string.

I was wondering whether the distinction between NULL and "" would be
important for some setting, but it doesn't seem so.  If that ever
happens, it would be more C++-y and self-descriptive to use
optional<string> anyway.

Actually, there's one spot where this distinction mattered, it's in
init_history, for the test gdb.base/gdbinit-history.exp.  init_history
sets the history filename to the default ".gdb_history" if it sees that
the setting was never set - if history_filename is nullptr.  If
history_filename is an empty string, it means the setting was explicitly
cleared, so it leaves it as-is.  With the change to std::string, this
distinction doesn't exist anymore.  This can be fixed by moving the code
that chooses a good default value for history_filename to
_initialize_top.  This is ran before -ex commands are processed, so an
-ex command can then clear that value if needed (what
gdb.base/gdbinit-history.exp tests).

Another small improvement, in my opinion is that we can now easily
give string parameters initial values, by simply initializing the global
variables, instead of xstrdup-ing it in the _initialize function.

In Python and Guile, when registering a string-like parameter, we
allocate (with new) an std::string that is owned by the param_smob (in
Guile) and the parmpy_object (in Python) objects.

This patch started by changing all relevant add_setshow_* commands to
take an `std::string *` instead of a `char **` and fixing everything
that failed to build.  That includes of course all string setting
variable and their uses.

string_option_def now uses an std::string also, because there's a
connection between options and settings (see
add_setshow_cmds_for_options).

The add_path function in source.c is really complex and twisted, I'd
rather not try to change it to work on an std::string right now.
Instead, I added an overload that copies the std:string to a `char *`
and back.  This means more copying, but this is not used in a hot path
at all, so I think it is acceptable.

Change-Id: I92c50a1bdd8307141cdbacb388248e4e4fc08c93
Co-authored-by: Lancelot SIX <lsix@lancelotsix.com>
2021-10-03 17:53:16 +01:00
Tom de Vries
2c71f639a0 [gdb/ada] Handle artificial local symbols
With current master and gcc 7.5.0/8.5.0, we have this timeout:
...
(gdb) print s^M
Multiple matches for s^M
[0] cancel^M
[1] s at src/gdb/testsuite/gdb.ada/interface/foo.adb:20^M
[2] s at src/gdb/testsuite/gdb.ada/interface/foo.adb:?^M
> FAIL: gdb.ada/interface.exp: print s (timeout)
...

[ The FAIL doesn't reproduce with gcc 9.3.1.  This difference in
behaviour bisects to gcc commit d70ba0c10de.

The FAIL with earlier gcc bisects to gdb commit ba8694b650. ]

The FAIL is caused by gcc generating this debug info describing a named
artificial variable:
...
 <2><1204>: Abbrev Number: 31 (DW_TAG_variable)
    <1205>   DW_AT_name        : s.14
    <1209>   DW_AT_type        : <0x1213>
    <120d>   DW_AT_artificial  : 1
    <120d>   DW_AT_location    : 5 byte block: 91 e0 7d 23 18   \
      (DW_OP_fbreg: -288; DW_OP_plus_uconst: 24)
...

An easy way to fix this would be to simply not put named artificial variables
into the symbol table.  However, that causes regressions for Ada.  It relies
on being able to get the value from such variables, using a named reference.

Fix this instead by marking the symbol as artificial, and:
- ignoring such symbols in ada_resolve_variable, which fixes the FAIL
- ignoring such ada symbols in do_print_variable_and_value, which prevents
  them from showing up in "info locals"

Note that a fix for the latter was submitted here (
https://sourceware.org/pipermail/gdb-patches/2008-January/054994.html ), and
this patch borrows from it.

Tested on x86_64-linux.

Co-Authored-By: Joel Brobecker  <brobecker@adacore.com>

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28180
2021-09-18 09:25:49 +02:00
Tom Tromey
9698f71410 Remove uses of fprintf_symbol_filtered
I believe that many calls to fprintf_symbol_filtered are incorrect.
In particular, there are some that pass a symbol's print name, like:

  fprintf_symbol_filtered (gdb_stdout, sym->print_name (),
			   current_language->la_language, DMGL_ANSI);

fprintf_symbol_filtered uses the "demangle" global to decide whether
or not to demangle -- but print_name does this as well.  This can lead
to double-demangling.  Normally this could be innocuous, except I also
plan to change Ada demangling in a way that causes this to fail.
2021-08-02 10:48:29 -06:00
Simon Marchi
24b21115f5 gdb: fix tab after space indentation issues
I spotted some indentation issues where we had some spaces followed by
tabs at beginning of line, that I wanted to fix.  So while at it, I did
a quick grep to find and fix all I could find.

gdb/ChangeLog:

	* Fix tab after space indentation issues throughout.

Change-Id: I1acb414dd9c593b474ae2b8667496584df4316fd
2021-05-27 15:18:49 -04:00
Simon Marchi
01add95bed gdb: fix some indentation issues
I wrote a small script to spot a pattern of indentation mistakes I saw
happened in breakpoint.c.  And while at it I ran it on all files and
fixed what I found.  No behavior changes intended, just indentation and
addition / removal of curly braces.

gdb/ChangeLog:

	* Fix some indentation mistakes throughout.

gdbserver/ChangeLog:

	* Fix some indentation mistakes throughout.

Change-Id: Ia01990c26c38e83a243d8f33da1d494f16315c6e
2021-05-27 15:01:28 -04:00
Simon Marchi
e0f25bd971 gdb: make add_info_alias accept target as a cmd_list_element
Same idea as previous patch, but for add_info_alias.

gdb/ChangeLog:

	* command.h (add_info_alias): Accept target as
	cmd_list_element.  Update callers.

Change-Id: If830d423364bf42d7bea5ac4dd3a81adcfce6f7a
2021-05-27 14:00:07 -04:00
Simon Marchi
3947f654ea gdb: make add_com_alias accept target as a cmd_list_element
The alias creation functions currently accept a name to specify the
target command.  They pass this to add_alias_cmd, which needs to lookup
the target command by name.

Given that:

 - We don't support creating an alias for a command before that command
   exists.
 - We always use add_info_alias just after creating that target command,
   and therefore have access to the target command's cmd_list_element.

... change add_com_alias to accept the target command as a
cmd_list_element (other functions are done in subsequent patches).  This
ensures we don't create the alias before the target command, because you
need to get the cmd_list_element from somewhere when you call the alias
creation function.  And it avoids an unecessary command lookup.  So it
seems better to me in every aspect.

gdb/ChangeLog:

	* command.h (add_com_alias): Accept target as
	cmd_list_element.  Update callers.

Change-Id: I24bed7da57221cc77606034de3023fedac015150
2021-05-27 14:00:07 -04:00
Simon Marchi
af7f8f52dd gdb: make add_setshow commands return set_show_commands
Some add_set_show commands return a single cmd_list_element, the one for
the "set" command.  A subsequent patch will need to access the show
command's cmd_list_element as well.  Change these functions to return a
new structure type that holds both pointers.

I initially only modified add_setshow_boolean_cmd (the one I needed),
but I think it's better to change the whole chain to keep everything in
sync.

gdb/ChangeLog:

	* command.h (set_show_commands): New.
	(add_setshow_enum_cmd, add_setshow_auto_boolean_cmd,
	add_setshow_boolean_cmd, add_setshow_filename_cmd,
	add_setshow_string_cmd, add_setshow_string_noescape_cmd,
	add_setshow_optional_filename_cmd, add_setshow_integer_cmd,
	add_setshow_uinteger_cmd, add_setshow_zinteger_cmd,
	add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd):
	Return set_show_commands.  Adjust callers.
	* cli/cli-decode.c (add_setshow_cmd_full): Return
	set_show_commands, remove result parameters, adjust callers.

Change-Id: I17492b01b76002d09effc84830f9c6db26f1db7a
2021-05-27 14:00:07 -04:00
Marco Barisione
2f822da535 gdb: generate the prefix name for prefix commands on demand
Previously, the prefixname field of struct cmd_list_element was manually
set for prefix commands.  This seems verbose and error prone as it
required every single call to functions adding prefix commands to
specify the prefix name while the same information can be easily
generated.

Historically, this was not possible as the prefix field was null for
many commands, but this was fixed in commit
3f4d92ebdf by Philippe Waroquiers, so
we can rely on the prefix field being set when generating the prefix
name.

This commit also fixes a use after free in this scenario:
* A command gets created via Python (using the gdb.Command class).
  The prefix name member is dynamically allocated.
* An alias to the new command is created. The alias's prefixname is set
  to point to the prefixname for the original command with a direct
  assignment.
* A new command with the same name as the Python command is created.
* The object for the original Python command gets freed and its
  prefixname gets freed as well.
* The alias is updated to point to the new command, but its prefixname
  is not updated so it keeps pointing to the freed one.

gdb/ChangeLog:

	* command.h (add_prefix_cmd): Remove the prefixname argument as
	it can now be generated automatically.  Update all callers.
	(add_basic_prefix_cmd): Ditto.
	(add_show_prefix_cmd): Ditto.
	(add_prefix_cmd_suppress_notification): Ditto.
	(add_abbrev_prefix_cmd): Ditto.
	* cli/cli-decode.c (add_prefix_cmd): Ditto.
	(add_basic_prefix_cmd): Ditto.
	(add_show_prefix_cmd): Ditto.
	(add_prefix_cmd_suppress_notification): Ditto.
	(add_prefix_cmd_suppress_notification): Ditto.
	(add_abbrev_prefix_cmd): Ditto.
	* cli/cli-decode.h (struct cmd_list_element): Replace the
	prefixname member variable with a method which generates the
	prefix name at runtime.  Update all code reading the prefix
	name to use the method, and remove all code setting it.
	* python/py-cmd.c (cmdpy_destroyer): Remove code to free the
	prefixname member as it's now a method.
	(cmdpy_function): Determine if the command is a prefix by
	looking at prefixlist, not prefixname.
2021-05-12 11:19:22 +01:00
Joel Brobecker
3666a04883 Update copyright year range in all GDB files
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...

gdb/ChangeLog

        Update copyright year range in copyright header of all GDB files.
2021-01-01 12:12:21 +04:00
Tom Tromey
2adab65cc0 Introduce expression::first_opcode
This adds a new helper method, expression::first_opcode, that extracts
the outermost opcode of an expression.  This simplifies some patches
in the expression rewrite series.

Note that this patch requires the earlier patch to avoid manual
dissection of OP_TYPE operations.

2020-12-15  Tom Tromey  <tom@tromey.com>

	* varobj.c (varobj_create): Use first_opcode.
	* value.c (init_if_undefined_command): Use first_opcode.
	* typeprint.c (whatis_exp): Use first_opcode.
	* tracepoint.c (validate_actionline): Use first_opcode.
	(encode_actions_1): Use first_opcode.
	* stack.c (return_command): Use first_opcode.
	* expression.h (struct expression) <first_opcode>: New method.
	* eval.c (parse_and_eval_type): Use first_opcode.
	* dtrace-probe.c (dtrace_process_dof_probe): Use first_opcode.
2020-12-15 18:24:02 -07:00
Simon Marchi
dda83cd783 gdb, gdbserver, gdbsupport: fix leading space vs tabs issues
Many spots incorrectly use only spaces for indentation (for example,
there are a lot of spots in ada-lang.c).  I've always found it awkward
when I needed to edit one of these spots: do I keep the original wrong
indentation, or do I fix it?  What if the lines around it are also
wrong, do I fix them too?  I probably don't want to fix them in the same
patch, to avoid adding noise to my patch.

So I propose to fix as much as possible once and for all (hopefully).

One typical counter argument for this is that it makes code archeology
more difficult, because git-blame will show this commit as the last
change for these lines.  My counter counter argument is: when
git-blaming, you often need to do "blame the file at the parent commit"
anyway, to go past some other refactor that touched the line you are
interested in, but is not the change you are looking for.  So you
already need a somewhat efficient way to do this.

Using some interactive tool, rather than plain git-blame, makes this
trivial.  For example, I use "tig blame <file>", where going back past
the commit that changed the currently selected line is one keystroke.
It looks like Magit in Emacs does it too (though I've never used it).
Web viewers of Github and Gitlab do it too.  My point is that it won't
really make archeology more difficult.

The other typical counter argument is that it will cause conflicts with
existing patches.  That's true... but it's a one time cost, and those
are not conflicts that are difficult to resolve.  I have also tried "git
rebase --ignore-whitespace", it seems to work well.  Although that will
re-introduce the faulty indentation, so one needs to take care of fixing
the indentation in the patch after that (which is easy).

gdb/ChangeLog:

	* aarch64-linux-tdep.c: Fix indentation.
	* aarch64-ravenscar-thread.c: Fix indentation.
	* aarch64-tdep.c: Fix indentation.
	* aarch64-tdep.h: Fix indentation.
	* ada-lang.c: Fix indentation.
	* ada-lang.h: Fix indentation.
	* ada-tasks.c: Fix indentation.
	* ada-typeprint.c: Fix indentation.
	* ada-valprint.c: Fix indentation.
	* ada-varobj.c: Fix indentation.
	* addrmap.c: Fix indentation.
	* addrmap.h: Fix indentation.
	* agent.c: Fix indentation.
	* aix-thread.c: Fix indentation.
	* alpha-bsd-nat.c: Fix indentation.
	* alpha-linux-tdep.c: Fix indentation.
	* alpha-mdebug-tdep.c: Fix indentation.
	* alpha-nbsd-tdep.c: Fix indentation.
	* alpha-obsd-tdep.c: Fix indentation.
	* alpha-tdep.c: Fix indentation.
	* amd64-bsd-nat.c: Fix indentation.
	* amd64-darwin-tdep.c: Fix indentation.
	* amd64-linux-nat.c: Fix indentation.
	* amd64-linux-tdep.c: Fix indentation.
	* amd64-nat.c: Fix indentation.
	* amd64-obsd-tdep.c: Fix indentation.
	* amd64-tdep.c: Fix indentation.
	* amd64-windows-tdep.c: Fix indentation.
	* annotate.c: Fix indentation.
	* arc-tdep.c: Fix indentation.
	* arch-utils.c: Fix indentation.
	* arch/arm-get-next-pcs.c: Fix indentation.
	* arch/arm.c: Fix indentation.
	* arm-linux-nat.c: Fix indentation.
	* arm-linux-tdep.c: Fix indentation.
	* arm-nbsd-tdep.c: Fix indentation.
	* arm-pikeos-tdep.c: Fix indentation.
	* arm-tdep.c: Fix indentation.
	* arm-tdep.h: Fix indentation.
	* arm-wince-tdep.c: Fix indentation.
	* auto-load.c: Fix indentation.
	* auxv.c: Fix indentation.
	* avr-tdep.c: Fix indentation.
	* ax-gdb.c: Fix indentation.
	* ax-general.c: Fix indentation.
	* bfin-linux-tdep.c: Fix indentation.
	* block.c: Fix indentation.
	* block.h: Fix indentation.
	* blockframe.c: Fix indentation.
	* bpf-tdep.c: Fix indentation.
	* break-catch-sig.c: Fix indentation.
	* break-catch-syscall.c: Fix indentation.
	* break-catch-throw.c: Fix indentation.
	* breakpoint.c: Fix indentation.
	* breakpoint.h: Fix indentation.
	* bsd-uthread.c: Fix indentation.
	* btrace.c: Fix indentation.
	* build-id.c: Fix indentation.
	* buildsym-legacy.h: Fix indentation.
	* buildsym.c: Fix indentation.
	* c-typeprint.c: Fix indentation.
	* c-valprint.c: Fix indentation.
	* c-varobj.c: Fix indentation.
	* charset.c: Fix indentation.
	* cli/cli-cmds.c: Fix indentation.
	* cli/cli-decode.c: Fix indentation.
	* cli/cli-decode.h: Fix indentation.
	* cli/cli-script.c: Fix indentation.
	* cli/cli-setshow.c: Fix indentation.
	* coff-pe-read.c: Fix indentation.
	* coffread.c: Fix indentation.
	* compile/compile-cplus-types.c: Fix indentation.
	* compile/compile-object-load.c: Fix indentation.
	* compile/compile-object-run.c: Fix indentation.
	* completer.c: Fix indentation.
	* corefile.c: Fix indentation.
	* corelow.c: Fix indentation.
	* cp-abi.h: Fix indentation.
	* cp-namespace.c: Fix indentation.
	* cp-support.c: Fix indentation.
	* cp-valprint.c: Fix indentation.
	* cris-linux-tdep.c: Fix indentation.
	* cris-tdep.c: Fix indentation.
	* darwin-nat-info.c: Fix indentation.
	* darwin-nat.c: Fix indentation.
	* darwin-nat.h: Fix indentation.
	* dbxread.c: Fix indentation.
	* dcache.c: Fix indentation.
	* disasm.c: Fix indentation.
	* dtrace-probe.c: Fix indentation.
	* dwarf2/abbrev.c: Fix indentation.
	* dwarf2/attribute.c: Fix indentation.
	* dwarf2/expr.c: Fix indentation.
	* dwarf2/frame.c: Fix indentation.
	* dwarf2/index-cache.c: Fix indentation.
	* dwarf2/index-write.c: Fix indentation.
	* dwarf2/line-header.c: Fix indentation.
	* dwarf2/loc.c: Fix indentation.
	* dwarf2/macro.c: Fix indentation.
	* dwarf2/read.c: Fix indentation.
	* dwarf2/read.h: Fix indentation.
	* elfread.c: Fix indentation.
	* eval.c: Fix indentation.
	* event-top.c: Fix indentation.
	* exec.c: Fix indentation.
	* exec.h: Fix indentation.
	* expprint.c: Fix indentation.
	* f-lang.c: Fix indentation.
	* f-typeprint.c: Fix indentation.
	* f-valprint.c: Fix indentation.
	* fbsd-nat.c: Fix indentation.
	* fbsd-tdep.c: Fix indentation.
	* findvar.c: Fix indentation.
	* fork-child.c: Fix indentation.
	* frame-unwind.c: Fix indentation.
	* frame-unwind.h: Fix indentation.
	* frame.c: Fix indentation.
	* frv-linux-tdep.c: Fix indentation.
	* frv-tdep.c: Fix indentation.
	* frv-tdep.h: Fix indentation.
	* ft32-tdep.c: Fix indentation.
	* gcore.c: Fix indentation.
	* gdb_bfd.c: Fix indentation.
	* gdbarch.sh: Fix indentation.
	* gdbarch.c: Re-generate
	* gdbarch.h: Re-generate.
	* gdbcore.h: Fix indentation.
	* gdbthread.h: Fix indentation.
	* gdbtypes.c: Fix indentation.
	* gdbtypes.h: Fix indentation.
	* glibc-tdep.c: Fix indentation.
	* gnu-nat.c: Fix indentation.
	* gnu-nat.h: Fix indentation.
	* gnu-v2-abi.c: Fix indentation.
	* gnu-v3-abi.c: Fix indentation.
	* go32-nat.c: Fix indentation.
	* guile/guile-internal.h: Fix indentation.
	* guile/scm-cmd.c: Fix indentation.
	* guile/scm-frame.c: Fix indentation.
	* guile/scm-iterator.c: Fix indentation.
	* guile/scm-math.c: Fix indentation.
	* guile/scm-ports.c: Fix indentation.
	* guile/scm-pretty-print.c: Fix indentation.
	* guile/scm-value.c: Fix indentation.
	* h8300-tdep.c: Fix indentation.
	* hppa-linux-nat.c: Fix indentation.
	* hppa-linux-tdep.c: Fix indentation.
	* hppa-nbsd-nat.c: Fix indentation.
	* hppa-nbsd-tdep.c: Fix indentation.
	* hppa-obsd-nat.c: Fix indentation.
	* hppa-tdep.c: Fix indentation.
	* hppa-tdep.h: Fix indentation.
	* i386-bsd-nat.c: Fix indentation.
	* i386-darwin-nat.c: Fix indentation.
	* i386-darwin-tdep.c: Fix indentation.
	* i386-dicos-tdep.c: Fix indentation.
	* i386-gnu-nat.c: Fix indentation.
	* i386-linux-nat.c: Fix indentation.
	* i386-linux-tdep.c: Fix indentation.
	* i386-nto-tdep.c: Fix indentation.
	* i386-obsd-tdep.c: Fix indentation.
	* i386-sol2-nat.c: Fix indentation.
	* i386-tdep.c: Fix indentation.
	* i386-tdep.h: Fix indentation.
	* i386-windows-tdep.c: Fix indentation.
	* i387-tdep.c: Fix indentation.
	* i387-tdep.h: Fix indentation.
	* ia64-libunwind-tdep.c: Fix indentation.
	* ia64-libunwind-tdep.h: Fix indentation.
	* ia64-linux-nat.c: Fix indentation.
	* ia64-linux-tdep.c: Fix indentation.
	* ia64-tdep.c: Fix indentation.
	* ia64-tdep.h: Fix indentation.
	* ia64-vms-tdep.c: Fix indentation.
	* infcall.c: Fix indentation.
	* infcmd.c: Fix indentation.
	* inferior.c: Fix indentation.
	* infrun.c: Fix indentation.
	* iq2000-tdep.c: Fix indentation.
	* language.c: Fix indentation.
	* linespec.c: Fix indentation.
	* linux-fork.c: Fix indentation.
	* linux-nat.c: Fix indentation.
	* linux-tdep.c: Fix indentation.
	* linux-thread-db.c: Fix indentation.
	* lm32-tdep.c: Fix indentation.
	* m2-lang.c: Fix indentation.
	* m2-typeprint.c: Fix indentation.
	* m2-valprint.c: Fix indentation.
	* m32c-tdep.c: Fix indentation.
	* m32r-linux-tdep.c: Fix indentation.
	* m32r-tdep.c: Fix indentation.
	* m68hc11-tdep.c: Fix indentation.
	* m68k-bsd-nat.c: Fix indentation.
	* m68k-linux-nat.c: Fix indentation.
	* m68k-linux-tdep.c: Fix indentation.
	* m68k-tdep.c: Fix indentation.
	* machoread.c: Fix indentation.
	* macrocmd.c: Fix indentation.
	* macroexp.c: Fix indentation.
	* macroscope.c: Fix indentation.
	* macrotab.c: Fix indentation.
	* macrotab.h: Fix indentation.
	* main.c: Fix indentation.
	* mdebugread.c: Fix indentation.
	* mep-tdep.c: Fix indentation.
	* mi/mi-cmd-catch.c: Fix indentation.
	* mi/mi-cmd-disas.c: Fix indentation.
	* mi/mi-cmd-env.c: Fix indentation.
	* mi/mi-cmd-stack.c: Fix indentation.
	* mi/mi-cmd-var.c: Fix indentation.
	* mi/mi-cmds.c: Fix indentation.
	* mi/mi-main.c: Fix indentation.
	* mi/mi-parse.c: Fix indentation.
	* microblaze-tdep.c: Fix indentation.
	* minidebug.c: Fix indentation.
	* minsyms.c: Fix indentation.
	* mips-linux-nat.c: Fix indentation.
	* mips-linux-tdep.c: Fix indentation.
	* mips-nbsd-tdep.c: Fix indentation.
	* mips-tdep.c: Fix indentation.
	* mn10300-linux-tdep.c: Fix indentation.
	* mn10300-tdep.c: Fix indentation.
	* moxie-tdep.c: Fix indentation.
	* msp430-tdep.c: Fix indentation.
	* namespace.h: Fix indentation.
	* nat/fork-inferior.c: Fix indentation.
	* nat/gdb_ptrace.h: Fix indentation.
	* nat/linux-namespaces.c: Fix indentation.
	* nat/linux-osdata.c: Fix indentation.
	* nat/netbsd-nat.c: Fix indentation.
	* nat/x86-dregs.c: Fix indentation.
	* nbsd-nat.c: Fix indentation.
	* nbsd-tdep.c: Fix indentation.
	* nios2-linux-tdep.c: Fix indentation.
	* nios2-tdep.c: Fix indentation.
	* nto-procfs.c: Fix indentation.
	* nto-tdep.c: Fix indentation.
	* objfiles.c: Fix indentation.
	* objfiles.h: Fix indentation.
	* opencl-lang.c: Fix indentation.
	* or1k-tdep.c: Fix indentation.
	* osabi.c: Fix indentation.
	* osabi.h: Fix indentation.
	* osdata.c: Fix indentation.
	* p-lang.c: Fix indentation.
	* p-typeprint.c: Fix indentation.
	* p-valprint.c: Fix indentation.
	* parse.c: Fix indentation.
	* ppc-linux-nat.c: Fix indentation.
	* ppc-linux-tdep.c: Fix indentation.
	* ppc-nbsd-nat.c: Fix indentation.
	* ppc-nbsd-tdep.c: Fix indentation.
	* ppc-obsd-nat.c: Fix indentation.
	* ppc-ravenscar-thread.c: Fix indentation.
	* ppc-sysv-tdep.c: Fix indentation.
	* ppc64-tdep.c: Fix indentation.
	* printcmd.c: Fix indentation.
	* proc-api.c: Fix indentation.
	* producer.c: Fix indentation.
	* producer.h: Fix indentation.
	* prologue-value.c: Fix indentation.
	* prologue-value.h: Fix indentation.
	* psymtab.c: Fix indentation.
	* python/py-arch.c: Fix indentation.
	* python/py-bpevent.c: Fix indentation.
	* python/py-event.c: Fix indentation.
	* python/py-event.h: Fix indentation.
	* python/py-finishbreakpoint.c: Fix indentation.
	* python/py-frame.c: Fix indentation.
	* python/py-framefilter.c: Fix indentation.
	* python/py-inferior.c: Fix indentation.
	* python/py-infthread.c: Fix indentation.
	* python/py-objfile.c: Fix indentation.
	* python/py-prettyprint.c: Fix indentation.
	* python/py-registers.c: Fix indentation.
	* python/py-signalevent.c: Fix indentation.
	* python/py-stopevent.c: Fix indentation.
	* python/py-stopevent.h: Fix indentation.
	* python/py-threadevent.c: Fix indentation.
	* python/py-tui.c: Fix indentation.
	* python/py-unwind.c: Fix indentation.
	* python/py-value.c: Fix indentation.
	* python/py-xmethods.c: Fix indentation.
	* python/python-internal.h: Fix indentation.
	* python/python.c: Fix indentation.
	* ravenscar-thread.c: Fix indentation.
	* record-btrace.c: Fix indentation.
	* record-full.c: Fix indentation.
	* record.c: Fix indentation.
	* reggroups.c: Fix indentation.
	* regset.h: Fix indentation.
	* remote-fileio.c: Fix indentation.
	* remote.c: Fix indentation.
	* reverse.c: Fix indentation.
	* riscv-linux-tdep.c: Fix indentation.
	* riscv-ravenscar-thread.c: Fix indentation.
	* riscv-tdep.c: Fix indentation.
	* rl78-tdep.c: Fix indentation.
	* rs6000-aix-tdep.c: Fix indentation.
	* rs6000-lynx178-tdep.c: Fix indentation.
	* rs6000-nat.c: Fix indentation.
	* rs6000-tdep.c: Fix indentation.
	* rust-lang.c: Fix indentation.
	* rx-tdep.c: Fix indentation.
	* s12z-tdep.c: Fix indentation.
	* s390-linux-tdep.c: Fix indentation.
	* score-tdep.c: Fix indentation.
	* ser-base.c: Fix indentation.
	* ser-mingw.c: Fix indentation.
	* ser-uds.c: Fix indentation.
	* ser-unix.c: Fix indentation.
	* serial.c: Fix indentation.
	* sh-linux-tdep.c: Fix indentation.
	* sh-nbsd-tdep.c: Fix indentation.
	* sh-tdep.c: Fix indentation.
	* skip.c: Fix indentation.
	* sol-thread.c: Fix indentation.
	* solib-aix.c: Fix indentation.
	* solib-darwin.c: Fix indentation.
	* solib-frv.c: Fix indentation.
	* solib-svr4.c: Fix indentation.
	* solib.c: Fix indentation.
	* source.c: Fix indentation.
	* sparc-linux-tdep.c: Fix indentation.
	* sparc-nbsd-tdep.c: Fix indentation.
	* sparc-obsd-tdep.c: Fix indentation.
	* sparc-ravenscar-thread.c: Fix indentation.
	* sparc-tdep.c: Fix indentation.
	* sparc64-linux-tdep.c: Fix indentation.
	* sparc64-nbsd-tdep.c: Fix indentation.
	* sparc64-obsd-tdep.c: Fix indentation.
	* sparc64-tdep.c: Fix indentation.
	* stabsread.c: Fix indentation.
	* stack.c: Fix indentation.
	* stap-probe.c: Fix indentation.
	* stubs/ia64vms-stub.c: Fix indentation.
	* stubs/m32r-stub.c: Fix indentation.
	* stubs/m68k-stub.c: Fix indentation.
	* stubs/sh-stub.c: Fix indentation.
	* stubs/sparc-stub.c: Fix indentation.
	* symfile-mem.c: Fix indentation.
	* symfile.c: Fix indentation.
	* symfile.h: Fix indentation.
	* symmisc.c: Fix indentation.
	* symtab.c: Fix indentation.
	* symtab.h: Fix indentation.
	* target-float.c: Fix indentation.
	* target.c: Fix indentation.
	* target.h: Fix indentation.
	* tic6x-tdep.c: Fix indentation.
	* tilegx-linux-tdep.c: Fix indentation.
	* tilegx-tdep.c: Fix indentation.
	* top.c: Fix indentation.
	* tracefile-tfile.c: Fix indentation.
	* tracepoint.c: Fix indentation.
	* tui/tui-disasm.c: Fix indentation.
	* tui/tui-io.c: Fix indentation.
	* tui/tui-regs.c: Fix indentation.
	* tui/tui-stack.c: Fix indentation.
	* tui/tui-win.c: Fix indentation.
	* tui/tui-winsource.c: Fix indentation.
	* tui/tui.c: Fix indentation.
	* typeprint.c: Fix indentation.
	* ui-out.h: Fix indentation.
	* unittests/copy_bitwise-selftests.c: Fix indentation.
	* unittests/memory-map-selftests.c: Fix indentation.
	* utils.c: Fix indentation.
	* v850-tdep.c: Fix indentation.
	* valarith.c: Fix indentation.
	* valops.c: Fix indentation.
	* valprint.c: Fix indentation.
	* valprint.h: Fix indentation.
	* value.c: Fix indentation.
	* value.h: Fix indentation.
	* varobj.c: Fix indentation.
	* vax-tdep.c: Fix indentation.
	* windows-nat.c: Fix indentation.
	* windows-tdep.c: Fix indentation.
	* xcoffread.c: Fix indentation.
	* xml-syscall.c: Fix indentation.
	* xml-tdesc.c: Fix indentation.
	* xstormy16-tdep.c: Fix indentation.
	* xtensa-config.c: Fix indentation.
	* xtensa-linux-nat.c: Fix indentation.
	* xtensa-linux-tdep.c: Fix indentation.
	* xtensa-tdep.c: Fix indentation.

gdbserver/ChangeLog:

	* ax.cc: Fix indentation.
	* dll.cc: Fix indentation.
	* inferiors.h: Fix indentation.
	* linux-low.cc: Fix indentation.
	* linux-nios2-low.cc: Fix indentation.
	* linux-ppc-ipa.cc: Fix indentation.
	* linux-ppc-low.cc: Fix indentation.
	* linux-x86-low.cc: Fix indentation.
	* linux-xtensa-low.cc: Fix indentation.
	* regcache.cc: Fix indentation.
	* server.cc: Fix indentation.
	* tracepoint.cc: Fix indentation.

gdbsupport/ChangeLog:

	* common-exceptions.h: Fix indentation.
	* event-loop.cc: Fix indentation.
	* fileio.cc: Fix indentation.
	* filestuff.cc: Fix indentation.
	* gdb-dlfcn.cc: Fix indentation.
	* gdb_string_view.h: Fix indentation.
	* job-control.cc: Fix indentation.
	* signals.cc: Fix indentation.

Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695
2020-11-02 10:28:45 -05:00
Pedro Alves
79952e6963 Make scoped_restore_current_thread's cdtors exception free (RFC)
If the remote target closes while we're reading registers/memory for
restoring the selected frame in scoped_restore_current_thread's dtor,
the corresponding TARGET_CLOSE_ERROR error is swallowed by the
scoped_restore_current_thread's dtor, because letting exceptions
escape from a dtor is bad.  It isn't great to lose that errors like
that, though.  I've been thinking about how to avoid it, and I came up
with this patch.

The idea here is to make scoped_restore_current_thread's dtor do as
little as possible, to avoid any work that might throw in the first
place.  And to do that, instead of having the dtor call
restore_selected_frame, which re-finds the previously selected frame,
just record the frame_id/level of the desired selected frame, and have
get_selected_frame find the frame the next time it is called.  In
effect, this implements most of Cagney's suggestion, here:

  /* On demand, create the selected frame and then return it.  If the
     selected frame can not be created, this function prints then throws
     an error.  When MESSAGE is non-NULL, use it for the error message,
     otherwize use a generic error message.  */
  /* FIXME: cagney/2002-11-28: At present, when there is no selected
     frame, this function always returns the current (inner most) frame.
     It should instead, when a thread has previously had its frame
     selected (but not resumed) and the frame cache invalidated, find
     and then return that thread's previously selected frame.  */
  extern struct frame_info *get_selected_frame (const char *message);

The only thing missing to fully implement that would be to make
reinit_frame_cache just clear selected_frame instead of calling
select_frame(NULL), and the call select_frame(NULL) explicitly in the
places where we really wanted reinit_frame_cache to go back to the
current frame too.  That can done separately, though, I'm not
proposing to do that in this patch.

Note that this patch renames restore_selected_frame to
lookup_selected_frame, and adds a new restore_selected_frame function
that doesn't throw, to be paired with the also-new save_selected_frame
function.

There's a restore_selected_frame function in infrun.c that I think can
be replaced by the new one in frame.c.

Also done in this patch is make the get_selected_frame's parameter be
optional, so that we don't have to pass down nullptr explicitly all
over the place.

lookup_selected_frame should really move from thread.c to frame.c, but
I didn't do that here, just to avoid churn in the patch while it
collects comments.  I did make it extern and declared it in frame.h
already, preparing for the move.  I will do the move as a follow up
patch if people agree with this approach.

Incidentally, this patch alone would fix the crashes fixed by the
previous patches in the series, because with this,
scoped_restore_current_thread's constructor doesn't throw either.

gdb/ChangeLog:

	* blockframe.c (block_innermost_frame): Use get_selected_frame.
	* frame.c
	(scoped_restore_selected_frame::scoped_restore_selected_frame):
	Use save_selected_frame.  Save language as well.
	(scoped_restore_selected_frame::~scoped_restore_selected_frame):
	Use restore_selected_frame, and restore language as well.
	(selected_frame_id, selected_frame_level): New.
	(selected_frame): Update comments.
	(save_selected_frame, restore_selected_frame): New.
	(get_selected_frame): Use lookup_selected_frame.
	(get_selected_frame_if_set): Delete.
	(select_frame): Record selected_frame_level and selected_frame_id.
	* frame.h (scoped_restore_selected_frame) <m_level, m_lang>: New
	fields.
	(get_selected_frame): Make 'message' parameter optional.
	(get_selected_frame_if_set): Delete declaration.
	(select_frame): Update comments.
	(save_selected_frame, restore_selected_frame)
	(lookup_selected_frame): Declare.
	* gdbthread.h (scoped_restore_current_thread) <m_lang>: New field.
	* infrun.c (struct infcall_control_state) <selected_frame_level>:
	New field.
	(save_infcall_control_state): Use save_selected_frame.
	(restore_selected_frame): Delete.
	(restore_infcall_control_state): Use restore_selected_frame.
	* stack.c (select_frame_command_core, frame_command_core): Use
	get_selected_frame.
	* thread.c (restore_selected_frame): Rename to ...
	(lookup_selected_frame): ... this and make extern.  Select the
	current frame if the frame level is -1.
	(scoped_restore_current_thread::restore): Also restore the
	language.
	(scoped_restore_current_thread::~scoped_restore_current_thread):
	Don't try/catch.
	(scoped_restore_current_thread::scoped_restore_current_thread):
	Save the language as well.  Use save_selected_frame.

Change-Id: I73fd1cfc40d8513c28e5596383b7ecd8bcfe700f
2020-10-30 01:01:12 +00:00
Tom Tromey
841de12014 Remove target_has_stack macro
This removes the target_has_stack object-like macro, replacing it with
the underlying function.

gdb/ChangeLog
2020-09-28  Tom Tromey  <tom@tromey.com>

	* windows-tdep.c (tlb_make_value): Update.
	* tui/tui-regs.c (tui_data_window::show_registers): Update.
	* thread.c (scoped_restore_current_thread::restore)
	(scoped_restore_current_thread::scoped_restore_current_thread)
	(thread_command): Update.
	* stack.c (backtrace_command_1, frame_apply_level_command)
	(frame_apply_all_command, frame_apply_command): Update.
	* infrun.c (siginfo_make_value, restore_infcall_control_state):
	Update.
	* gcore.c (derive_stack_segment): Update.
	* frame.c (get_current_frame, has_stack_frames): Update.
	* auxv.c (info_auxv_command): Update.
	* ada-tasks.c (ada_build_task_list): Update.
	* target.c (target_has_stack): Rename from target_has_stack_1.
	* target.h (target_has_stack): Remove macro.
	(target_has_stack): Rename from target_has_stack_1.
2020-09-28 19:52:21 -06:00
Tom de Vries
547ce8f00b [gdb/backtrace] Fix printing of fortran string args
When running test-case gdb.fortran/mixed-lang-stack.exp, it passes, but we
find in gdb.log:
...
 (gdb) bt^M
   ...
 #7  0x000000000040113c in mixed_func_1b (a=1, b=2, c=3, d=(4,5), \
   e=<error reading variable: value requires 140737488341744 bytes, which \
   is more than max-value-size>, g=..., _e=6) at mixed-lang-stack.f90:87^M
...
while a bit later in gdb.log, we have instead for the same frame (after
adding a gdb_test_no_output "set print frame-arguments all" to prevent
getting "e=..."):
...
 (gdb) up^M
 #7  0x000000000040113c in mixed_func_1b (a=1, b=2, c=3, d=(4,5), \
   e='abcdef', g=( a = 1.5, b = 2.5 ), _e=6) at mixed-lang-stack.f90:87^M
...

The difference is that in the latter case, we print the frame while it's
selected, while in the former, it's not.

The problem is that while trying to resolve the dynamic type of e in
resolve_dynamic_type, we call dwarf2_evaluate_property with a frame == NULL
argument, and then use the selected frame as the context in which to evaluate
the dwarf property, effectively evaluating a DW_OP_fbreg operation in the
wrong frame context.

Fix this by temporarily selecting the frame of which we're trying to print the
arguments in print_frame_args, borrowing code from print_frame_local_vars that
was added to fix a similar issue in commit 16c3b12f19 "error/internal-error
printing local variable during "bt full".

Build and tested on x86_64-linux.

gdb/ChangeLog:

2020-08-15  Tom de Vries  <tdevries@suse.de>

	PR backtrace/26390
	* stack.c (print_frame_args): Temporarily set the selected
	frame to FRAME while printing the frame's arguments.

gdb/testsuite/ChangeLog:

2020-08-15  Tom de Vries  <tdevries@suse.de>

	PR backtrace/26390
	* gdb.fortran/mixed-lang-stack.exp: Call bt with -frame-arguments all.
	Update expected pattern.
2020-08-15 10:19:13 +02:00
Andrew Burgess
7c13f4e875 gdb: Restore old annotations behaviour when printing frame info
This undoes most of the changes from these commits:

  commit ec8e2b6d30
  Date:   Fri Jun 14 23:43:00 2019 +0100

      gdb: Don't allow annotations to influence what else GDB prints

  commit 0d3abd8cc9
  Date:   Wed Jun 12 22:34:26 2019 +0100

      gdb: Remove an update of current_source_line and current_source_symtab

as a result of the discussion here:

  https://sourceware.org/pipermail/gdb/2020-April/048468.html

Having taken time to reflect on the discussion, and reading the
documentation again I believe we should revert GDB's behaviour back to
how it used to be.

The original concern that triggered the initial patch was that when
annotations were on the current source and line were updated (inside
the annotation code), while when annotations are off this update would
not occur.  This was incorrect, as printing the source with the call
to print_source_lines does also update the current source and line.

Further, the documentation here:
  https://sourceware.org/gdb/current/onlinedocs/gdb/Source-Annotations.html#Source-Annotations

Clearly states:

  "The following annotation is used instead of displaying source code:

   ^Z^Zsource filename:line:character:middle:addr

   ..."

So it is documented that the 'source' annotation is a replacement for,
and not in addition to, actually printing the source lie.

There are still a few issues that I can see, these are:

  1. In source.c:info_line_command, when annotations are on we call
  annotate_source_line, however, if annotations are off then there is
  no corresponding call to print the source line.  This means that a
  if a user uses 'info line ...' with annotations on, and then does a
  'list', they will get different results than if they had done this
  with annotations off.

  2. It bothers me that the call to annotate_source_line returns a
  boolean, and that this controls a call to print_source_line (in
  stack.c:print_frame_info).

  The reason for this is that the source line annotation will only
  print something if the file is found, and the line number is in
  range for the file.

  It seems to me like an annotation should always be printed, either
  one that identifies the file and line, or one that identifies the
  file and line GDB would like to access, but couldn't.

  I considered changing this, but in the end decided not too, if I
  extend the existing 'source' annotation to print something in all
  cases then I risk breaking existing UIs that rely on the file and
  line always being valid.  If I add a new annotation then this might
  also break existing UIs that rely on GDB itself printing the error
  from within print_source_line.

Given that annotations is deprecated (as I understand it) mechanism
for UIs to interact with GDB (in favour of MI) I figure we should just
restore the old behaviour, and leave the mini-bugs in until someone
actually complains.

This isn't a straight revert of the two commits mentioned above.  I've
left annotate_source_line instead of going back to the original
identify_source_line, which lived in source.c, but was really
annotation related.  The API for setting the current source and line
has changed since the original patches, so I updated for that change
too.  Finally I wrote the code in stack.c so that we avoided an extra
level of indentation, which I felt made things easier to read.

gdb/ChangeLog:

	* annotate.c (annotate_source_line): Update return type, add call
	to update current symtab and line.
	* annotate.h (annotate_source_line): Update return type, and
	extend header comment.
	* source.c (info_line_command): Check annotation_level before
	calling annotate_source_line.
	* stack.c (print_frame_info): If calling annotate_source_line
	returns true, then don't print any other source line information.

gdb/testsuite/ChangeLog:

	* gdb.base/annota1.exp: Update expected results.
	* gdb.cp/annota2.exp: Update expected results, remove duplicate
	test name.
	* gdb.cp/annota3.exp: Update expected results.
2020-05-22 13:39:50 +01:00
Philippe Waroquiers
57b4f16e49 Ensure class_alias is only used for user-defined aliases.
This commit finally does the (small) change that started this patch
series.

It ensures that the class_alias is only used for user-defined aliases.
So, the few GDB pre-defined aliases that were using the 'class_alias'
class are now using a real help class, typically the class of
the aliased command.

gdb/ChangeLog

2020-05-15  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* command.h (enum command_class): Improve comments, document
	that class_alias is for user-defined aliases, give the class
	name for each class, remove unused class_xdb.
	* cli/cli-decode.c (add_com_alias): Document THECLASS intended usage.
	* breakpoint.c (_initialize_breakpoint): Replace class_alias
	by a precise class.
	* infcmd.c (_initialize_infcmd): Likewise.
	* reverse.c (_initialize_reverse): Likewise.
	* stack.c (_initialize_stack): Likewise.
	* symfile.c (_initialize_symfile): Likewise.
	* tracepoint.c (_initialize_tracepoint): Likewise.

gdb/testsuite/ChangeLog

2020-05-15  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* gdb.base/alias.exp: Verify 'help aliases' shows user defined aliases.
2020-05-15 22:17:46 +02:00
Simon Marchi
7813437494 gdb: remove TYPE_CODE macro
Remove TYPE_CODE, changing all the call sites to use type::code
directly.  This is quite a big diff, but this was mostly done using sed
and coccinelle.  A few call sites were done by hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_CODE): Remove.  Change all call sites to use
	type::code instead.
2020-05-14 13:46:38 -04:00
Philippe Waroquiers
102e38eba7 Remove duplicated creation of "frame" command and "f" alias.
"frame" and "f" are created twice by stack.c _initialize_stack.
Remove the second creation.
Regression tested on amd64/Debian.

2020-04-30  Philippe Waroquiers  <philippe.waroquiers@skynet.be>
	* stack.c (_initialize_stack): Remove duplicated creation
	of "frame" command and "f" alias.
2020-04-30 18:40:57 +02:00
Tom Tromey
fc49bc7237 Remove some dead code
print_block_frame_labels has been commented out since 2010.
I don't think we need it; this patch removes it.

2020-04-29  Tom Tromey  <tom@tromey.com>

	* stack.c (print_block_frame_labels): Remove.
2020-04-29 08:11:45 -06:00
Tom Tromey
c2a44efee1 Introduce common_val_print_checked
A (much) later patch will remove the call to value_check_printable
from common_val_print.  This will needed to preserve some details of
how optimized-out structures are printed.

However, doing this will also break dw2-op-out-param.exp.  Making the
change causes "bt" to print:

However, the test wants to see:

... operand2=<optimized out>

That is, a wholly-optimized out structure should not print its fields.

So, this patch introduces a new common_val_print_checked, which calls
value_check_printable first, and then arranges to use it in the one
spot that affects the test suite.

I was not completely sure if it would be preferable to change the
test.  However, I reasoned that, assuming this output was intentional
in the first place, in a backtrace space is at a premium and so this
is a reasonable approach.  In other spots calling common_val_print,
this behavior is probably unintended, or at least a "don't care".

gdb/ChangeLog
2020-03-13  Tom Tromey  <tom@tromey.com>

	* valprint.h (common_val_print_checked): Declare.
	* valprint.c (common_val_print_checked): New function.
	* stack.c (print_frame_arg): Use common_val_print_checked.
2020-03-13 18:03:39 -06:00
Andrew Burgess
8c95582da8 gdb: Add support for tracking the DWARF line table is-stmt field
This commit brings support for the DWARF line table is_stmt field to
GDB.  The is_stmt field is used by the compiler when a single source
line is split into multiple assembler instructions, especially if the
assembler instructions are interleaved with instruction from other
source lines.

The compiler will set the is_stmt flag false from some instructions
from the source lines, these instructions are not a good place to
insert a breakpoint in order to stop at the source line.
Instructions which are marked with the is_stmt flag true are a good
place to insert a breakpoint for that source line.

Currently GDB ignores all instructions for which is_stmt is false.
This is fine in a lot of cases, however, there are some cases where
this means the debug experience is not as good as it could be.

Consider stopping at a random instruction, currently this instruction
will be attributed to the last line table entry before this point for
which is_stmt was true - as these are the only line table entries that
GDB tracks.  This can easily be incorrect in code with even a low
level of optimisation.

With is_stmt tracking in place, when stopping at a random instruction
we now attribute the instruction back to the real source line, even
when is_stmt is false for that instruction in the line table.

When inserting breakpoints we still select line table entries for
which is_stmt is true, so the breakpoint placing behaviour should not
change.

When stepping though code (at the line level, not the instruction
level) we will still stop at instruction where is_stmt is true, I
think this is more likely to be the desired behaviour.

Instruction stepping is, of course, unchanged, stepping one
instruction at a time, but we should now report more accurate line
table information with each instruction step.

The original motivation for this work was a patch posted by Bernd
here:
  https://sourceware.org/ml/gdb-patches/2019-11/msg00792.html

As part of that thread it was suggested that many issues would be
resolved if GDB supported line table views, this isn't something I've
attempted in this patch, though reading the spec, it seems like this
would be a useful feature to support in GDB in the future.  The spec
is here:
  http://dwarfstd.org/ShowIssue.php?issue=170427.1

And Bernd gives a brief description of the benefits here:
  https://sourceware.org/ml/gdb-patches/2020-01/msg00147.html

With that all said, I think that there is benefit to having proper
is_stmt support regardless of whether we have views support, so I
think we should consider getting this in first, and then building view
support on top of this.

The gdb.cp/step-and-next-inline.exp test is based off a test proposed
by Bernd Edlinger in this message:
  https://sourceware.org/ml/gdb-patches/2019-12/msg00842.html

gdb/ChangeLog:

	* buildsym-legacy.c (record_line): Pass extra parameter to
	record_line.
	* buildsym.c (buildsym_compunit::record_line): Take an extra
	parameter, reduce duplication in the line table, and record the
	is_stmt flag in the line table.
	* buildsym.h (buildsym_compunit::record_line): Add extra
	parameter.
	* disasm.c (do_mixed_source_and_assembly_deprecated): Ignore
	non-statement lines.
	* dwarf2/read.c (dwarf_record_line_1): Add extra parameter, pass
	this to the symtab builder.
	(dwarf_finish_line): Pass extra parameter to dwarf_record_line_1.
	(lnp_state_machine::record_line): Pass a suitable is_stmt flag
	through to dwarf_record_line_1.
	* infrun.c (process_event_stop_test): When stepping, don't stop at
	a non-statement instruction, and only refresh the step info when
	we land in the middle of a line's range.  Also add an extra
	comment.
	* jit.c (jit_symtab_line_mapping_add_impl): Initialise is_stmt
	field.
	* record-btrace.c (btrace_find_line_range): Only record lines
	marked as is-statement.
	* stack.c (frame_show_address): Show the frame address if we are
	in a non-statement sal.
	* symmisc.c (dump_symtab_1): Print the is_stmt flag.
	(maintenance_print_one_line_table): Print a header for the is_stmt
	column, and include is_stmt information in the output.
	* symtab.c (find_pc_sect_line): Find lines marked as statements in
	preference to non-statements.
	(find_pcs_for_symtab_line): Prefer is-statement entries.
	(find_line_common): Likewise.
	* symtab.h (struct linetable_entry): Add is_stmt field.
	(struct symtab_and_line): Likewise.
	* xcoffread.c (arrange_linetable): Initialise is_stmt field when
	arranging the line table.

gdb/testsuite/ChangeLog:

	* gdb.cp/step-and-next-inline.cc: New file.
	* gdb.cp/step-and-next-inline.exp: New file.
	* gdb.cp/step-and-next-inline.h: New file.
	* gdb.dwarf2/dw2-is-stmt.c: New file.
	* gdb.dwarf2/dw2-is-stmt.exp: New file.
	* gdb.dwarf2/dw2-is-stmt-2.c: New file.
	* gdb.dwarf2/dw2-is-stmt-2.exp: New file.
	* gdb.dwarf2/dw2-ranges-base.exp: Update line table pattern.
2020-03-10 22:32:07 +00:00
Tom de Vries
a88ef40d0f [gdb] Ensure listing of unused static var in info locals
Consider a test-case compiled with -g:
...
int main (void) {
  static int b = 2;
  return 0;
}
...

When running info locals in main, we get:
...
(gdb) info locals
No locals.
...

The info locals documentation states:
...
Print the local variables of the selected frame, each on a separate line.
These are all variables (declared either static or automatic) accessible at
the point of execution of the selected frame.
...
So, "info locals" should have printed static variable b.

The variable is present in dwarf info:
...
 <2><14a>: Abbrev Number: 6 (DW_TAG_variable)
    <14b>   DW_AT_name        : b
    <153>   DW_AT_const_value : 2
...
but instead of a location attribute, it has a const_value attribute, which
causes the corresponding symbol to have LOC_CONST, which causes info locals to
skip it.

Fix this by handling LOC_CONST in iterate_over_block_locals.

Build and reg-tested on x86_64-linux.

gdb/ChangeLog:

2020-02-24  Tom de Vries  <tdevries@suse.de>

	PR gdb/25592
	* stack.c (iterate_over_block_locals): Handle LOC_CONST.

gdb/testsuite/ChangeLog:

2020-02-24  Tom de Vries  <tdevries@suse.de>

	PR gdb/25592
	* gdb.base/info-locals-unused-static-var.c: New test.
	* gdb.base/info-locals-unused-static-var.exp: New file.
2020-02-24 15:32:36 +01:00
Simon Marchi
6c2659886f gdb: add back declarations for _initialize functions
I'd like to enable the -Wmissing-declarations warning.  However, it
warns for every _initialize function, for example:

      CXX    dcache.o
    /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
    /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
     _initialize_dcache (void)
     ^~~~~~~~~~~~~~~~~~

The only practical way forward I found is to add back the declarations,
which were removed by this commit:

    commit 481695ed5f
    Author: John Baldwin <jhb@FreeBSD.org>
    Date:   Sat Sep 9 11:02:37 2017 -0700

        Remove unnecessary function prototypes.

I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.

gdb/ChangeLog:

	* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
	* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
	* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
	* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
	* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
	* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
	* ada-exp.y (_initialize_ada_exp): Add declaration.
	* ada-lang.c (_initialize_ada_language): Add declaration.
	* ada-tasks.c (_initialize_tasks): Add declaration.
	* agent.c (_initialize_agent): Add declaration.
	* aix-thread.c (_initialize_aix_thread): Add declaration.
	* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
	* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
	* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
	* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
	* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
	* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
	* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
	* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
	* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
	* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
	* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
	* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
	* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
	* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
	* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
	* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
	* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
	* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
	* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
	* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
	* annotate.c (_initialize_annotate): Add declaration.
	* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
	* arc-tdep.c (_initialize_arc_tdep): Add declaration.
	* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
	* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
	* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
	* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
	* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
	* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
	* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
	* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
	* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
	* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
	* arm-tdep.c (_initialize_arm_tdep): Add declaration.
	* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
	* auto-load.c (_initialize_auto_load): Add declaration.
	* auxv.c (_initialize_auxv): Add declaration.
	* avr-tdep.c (_initialize_avr_tdep): Add declaration.
	* ax-gdb.c (_initialize_ax_gdb): Add declaration.
	* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
	* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
	* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
	* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
	* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
	* breakpoint.c (_initialize_breakpoint): Add declaration.
	* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
	* btrace.c (_initialize_btrace): Add declaration.
	* charset.c (_initialize_charset): Add declaration.
	* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
	* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
	* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
	* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
	* cli/cli-script.c (_initialize_cli_script): Add declaration.
	* cli/cli-style.c (_initialize_cli_style): Add declaration.
	* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
	* coffread.c (_initialize_coffread): Add declaration.
	* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
	* compile/compile.c (_initialize_compile): Add declaration.
	* complaints.c (_initialize_complaints): Add declaration.
	* completer.c (_initialize_completer): Add declaration.
	* copying.c (_initialize_copying): Add declaration.
	* corefile.c (_initialize_core): Add declaration.
	* corelow.c (_initialize_corelow): Add declaration.
	* cp-abi.c (_initialize_cp_abi): Add declaration.
	* cp-namespace.c (_initialize_cp_namespace): Add declaration.
	* cp-support.c (_initialize_cp_support): Add declaration.
	* cp-valprint.c (_initialize_cp_valprint): Add declaration.
	* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
	* cris-tdep.c (_initialize_cris_tdep): Add declaration.
	* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
	* csky-tdep.c (_initialize_csky_tdep): Add declaration.
	* ctfread.c (_initialize_ctfread): Add declaration.
	* d-lang.c (_initialize_d_language): Add declaration.
	* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
	* darwin-nat.c (_initialize_darwin_nat): Add declaration.
	* dbxread.c (_initialize_dbxread): Add declaration.
	* dcache.c (_initialize_dcache): Add declaration.
	* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
	* disasm.c (_initialize_disasm): Add declaration.
	* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
	* dummy-frame.c (_initialize_dummy_frame): Add declaration.
	* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
	* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
	* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
	* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
	* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
	* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
	* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
	* elfread.c (_initialize_elfread): Add declaration.
	* exec.c (_initialize_exec): Add declaration.
	* extension.c (_initialize_extension): Add declaration.
	* f-lang.c (_initialize_f_language): Add declaration.
	* f-valprint.c (_initialize_f_valprint): Add declaration.
	* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
	* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
	* filesystem.c (_initialize_filesystem): Add declaration.
	* findcmd.c (_initialize_mem_search): Add declaration.
	* findvar.c (_initialize_findvar): Add declaration.
	* fork-child.c (_initialize_fork_child): Add declaration.
	* frame-base.c (_initialize_frame_base): Add declaration.
	* frame-unwind.c (_initialize_frame_unwind): Add declaration.
	* frame.c (_initialize_frame): Add declaration.
	* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
	* frv-tdep.c (_initialize_frv_tdep): Add declaration.
	* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
	* gcore.c (_initialize_gcore): Add declaration.
	* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
	* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
	* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
	* gdbarch.c (_initialize_gdbarch): Add declaration.
	* gdbtypes.c (_initialize_gdbtypes): Add declaration.
	* gnu-nat.c (_initialize_gnu_nat): Add declaration.
	* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
	* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
	* go-lang.c (_initialize_go_language): Add declaration.
	* go32-nat.c (_initialize_go32_nat): Add declaration.
	* guile/guile.c (_initialize_guile): Add declaration.
	* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
	* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
	* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
	* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
	* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
	* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
	* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
	* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
	* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
	* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
	* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
	* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
	* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
	* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
	* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
	* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
	* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
	* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
	* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
	* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
	* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
	* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
	* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
	* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
	* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
	* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
	* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
	* i386-tdep.c (_initialize_i386_tdep): Add declaration.
	* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
	* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
	* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
	* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
	* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
	* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
	* infcall.c (_initialize_infcall): Add declaration.
	* infcmd.c (_initialize_infcmd): Add declaration.
	* inflow.c (_initialize_inflow): Add declaration.
	* infrun.c (_initialize_infrun): Add declaration.
	* interps.c (_initialize_interpreter): Add declaration.
	* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
	* jit.c (_initialize_jit): Add declaration.
	* language.c (_initialize_language): Add declaration.
	* linux-fork.c (_initialize_linux_fork): Add declaration.
	* linux-nat.c (_initialize_linux_nat): Add declaration.
	* linux-tdep.c (_initialize_linux_tdep): Add declaration.
	* linux-thread-db.c (_initialize_thread_db): Add declaration.
	* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
	* m2-lang.c (_initialize_m2_language): Add declaration.
	* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
	* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
	* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
	* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
	* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
	* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
	* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
	* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
	* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
	* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
	* machoread.c (_initialize_machoread): Add declaration.
	* macrocmd.c (_initialize_macrocmd): Add declaration.
	* macroscope.c (_initialize_macroscope): Add declaration.
	* maint-test-options.c (_initialize_maint_test_options): Add declaration.
	* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
	* maint.c (_initialize_maint_cmds): Add declaration.
	* mdebugread.c (_initialize_mdebugread): Add declaration.
	* memattr.c (_initialize_mem): Add declaration.
	* mep-tdep.c (_initialize_mep_tdep): Add declaration.
	* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
	* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
	* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
	* mi/mi-main.c (_initialize_mi_main): Add declaration.
	* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
	* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
	* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
	* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
	* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
	* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
	* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
	* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
	* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
	* mips-tdep.c (_initialize_mips_tdep): Add declaration.
	* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
	* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
	* mipsread.c (_initialize_mipsread): Add declaration.
	* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
	* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
	* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
	* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
	* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
	* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
	* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
	* nto-procfs.c (_initialize_procfs): Add declaration.
	* objc-lang.c (_initialize_objc_language): Add declaration.
	* observable.c (_initialize_observer): Add declaration.
	* opencl-lang.c (_initialize_opencl_language): Add declaration.
	* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
	* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
	* osabi.c (_initialize_gdb_osabi): Add declaration.
	* osdata.c (_initialize_osdata): Add declaration.
	* p-valprint.c (_initialize_pascal_valprint): Add declaration.
	* parse.c (_initialize_parse): Add declaration.
	* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
	* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
	* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
	* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
	* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
	* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
	* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
	* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
	* printcmd.c (_initialize_printcmd): Add declaration.
	* probe.c (_initialize_probe): Add declaration.
	* proc-api.c (_initialize_proc_api): Add declaration.
	* proc-events.c (_initialize_proc_events): Add declaration.
	* proc-service.c (_initialize_proc_service): Add declaration.
	* procfs.c (_initialize_procfs): Add declaration.
	* producer.c (_initialize_producer): Add declaration.
	* psymtab.c (_initialize_psymtab): Add declaration.
	* python/python.c (_initialize_python): Add declaration.
	* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
	* record-btrace.c (_initialize_record_btrace): Add declaration.
	* record-full.c (_initialize_record_full): Add declaration.
	* record.c (_initialize_record): Add declaration.
	* regcache-dump.c (_initialize_regcache_dump): Add declaration.
	* regcache.c (_initialize_regcache): Add declaration.
	* reggroups.c (_initialize_reggroup): Add declaration.
	* remote-notif.c (_initialize_notif): Add declaration.
	* remote-sim.c (_initialize_remote_sim): Add declaration.
	* remote.c (_initialize_remote): Add declaration.
	* reverse.c (_initialize_reverse): Add declaration.
	* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
	* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
	* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
	* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
	* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
	* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
	* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
	* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
	Add declaration.
	* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
	* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
	* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
	* rust-exp.y (_initialize_rust_exp): Add declaration.
	* rx-tdep.c (_initialize_rx_tdep): Add declaration.
	* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
	* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
	* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
	* s390-tdep.c (_initialize_s390_tdep): Add declaration.
	* score-tdep.c (_initialize_score_tdep): Add declaration.
	* ser-go32.c (_initialize_ser_dos): Add declaration.
	* ser-mingw.c (_initialize_ser_windows): Add declaration.
	* ser-pipe.c (_initialize_ser_pipe): Add declaration.
	* ser-tcp.c (_initialize_ser_tcp): Add declaration.
	* ser-uds.c (_initialize_ser_socket): Add declaration.
	* ser-unix.c (_initialize_ser_hardwire): Add declaration.
	* serial.c (_initialize_serial): Add declaration.
	* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
	* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
	* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
	* sh-tdep.c (_initialize_sh_tdep): Add declaration.
	* skip.c (_initialize_step_skip): Add declaration.
	* sol-thread.c (_initialize_sol_thread): Add declaration.
	* solib-aix.c (_initialize_solib_aix): Add declaration.
	* solib-darwin.c (_initialize_darwin_solib): Add declaration.
	* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
	* solib-frv.c (_initialize_frv_solib): Add declaration.
	* solib-svr4.c (_initialize_svr4_solib): Add declaration.
	* solib-target.c (_initialize_solib_target): Add declaration.
	* solib.c (_initialize_solib): Add declaration.
	* source-cache.c (_initialize_source_cache): Add declaration.
	* source.c (_initialize_source): Add declaration.
	* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
	* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
	* sparc-nat.c (_initialize_sparc_nat): Add declaration.
	* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
	* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
	* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
	* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
	* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
	* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
	* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
	* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
	* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
	* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
	* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
	* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
	* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
	* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
	* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
	* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
	* stabsread.c (_initialize_stabsread): Add declaration.
	* stack.c (_initialize_stack): Add declaration.
	* stap-probe.c (_initialize_stap_probe): Add declaration.
	* std-regs.c (_initialize_frame_reg): Add declaration.
	* symfile-debug.c (_initialize_symfile_debug): Add declaration.
	* symfile-mem.c (_initialize_symfile_mem): Add declaration.
	* symfile.c (_initialize_symfile): Add declaration.
	* symmisc.c (_initialize_symmisc): Add declaration.
	* symtab.c (_initialize_symtab): Add declaration.
	* target.c (_initialize_target): Add declaration.
	* target-connection.c (_initialize_target_connection): Add
	declaration.
	* target-dcache.c (_initialize_target_dcache): Add declaration.
	* target-descriptions.c (_initialize_target_descriptions): Add declaration.
	* thread.c (_initialize_thread): Add declaration.
	* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
	* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
	* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
	* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
	* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
	* tracectf.c (_initialize_ctf): Add declaration.
	* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
	* tracefile.c (_initialize_tracefile): Add declaration.
	* tracepoint.c (_initialize_tracepoint): Add declaration.
	* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
	* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
	* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
	* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
	* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
	* tui/tui-win.c (_initialize_tui_win): Add declaration.
	* tui/tui.c (_initialize_tui): Add declaration.
	* typeprint.c (_initialize_typeprint): Add declaration.
	* ui-style.c (_initialize_ui_style): Add declaration.
	* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
	* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
	* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
	* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
	* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
	* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
	* unittests/filtered_iterator-selftests.c
	(_initialize_filtered_iterator_selftests): Add declaration.
	* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
	* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
	* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
	* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
	* unittests/main-thread-selftests.c
	(_initialize_main_thread_selftests): Add declaration.
	* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
	* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
	* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
	* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
	* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
	* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
	* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
	* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
	* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
	* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
	* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
	* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
	* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
	* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
	* unittests/tui-selftests.c (_initialize_tui_selftest): Add
	declaration.
	* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
	* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
	* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
	* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
	* user-regs.c (_initialize_user_regs): Add declaration.
	* utils.c (_initialize_utils): Add declaration.
	* v850-tdep.c (_initialize_v850_tdep): Add declaration.
	* valops.c (_initialize_valops): Add declaration.
	* valprint.c (_initialize_valprint): Add declaration.
	* value.c (_initialize_values): Add declaration.
	* varobj.c (_initialize_varobj): Add declaration.
	* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
	* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
	* vax-tdep.c (_initialize_vax_tdep): Add declaration.
	* windows-nat.c (_initialize_windows_nat): Add declaration.
	(_initialize_check_for_gdb_ini): Add declaration.
	(_initialize_loadable): Add declaration.
	* windows-tdep.c (_initialize_windows_tdep): Add declaration.
	* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
	* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
	* xcoffread.c (_initialize_xcoffread): Add declaration.
	* xml-support.c (_initialize_xml_support): Add declaration.
	* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
	* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
	* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
	* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.

Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-13 14:01:38 -05:00
Andrew Burgess
153d79c451 gdb: Fix backtrace with disassemble-next-line on
In this commit:

  commit ec8e2b6d30
  Date:   Fri Jun 14 23:43:00 2019 +0100

      gdb: Don't allow annotations to influence what else GDB prints

A change was accidentally made that moved a call to do_gdb_disassembly
out of an if block guarded by 'if (source_print && sal.symtab)'.  The
result was that if a user has 'set disassemble-next-line on' then the
backtrace would now include some disassembly of a few instructions in
each frame.

This change was not intentional, but was not spotted by any tests.

This commit restores the old behaviour and adds a test to ensure this
doesn't break again in the future.

gdb/ChangeLog:

	* stack.c (print_frame_info): Move disassemble_next_line code
	inside source_print block.

gdb/testsuite/ChangeLog:

	* gdb.base/backtrace.c: New file.
	* gdb.base/backtrace.exp: New file.

Change-Id: I47c52a202fa74be138382646b695827940178689
2020-01-06 21:16:28 +00:00
Joel Brobecker
b811d2c292 Update copyright year range in all GDB files.
gdb/ChangeLog:

        Update copyright year range in all GDB files.
2020-01-01 10:20:53 +04:00
Christian Biesinger
c1b5c1ebc9 Use an accessor function for general_symbol_info::language
Also renames the member variable to m_language to make code easier to read
when more functions become member functions.

I was originally hoping to eventually make m_language private (after a few
more patches), but unfortunately then it no longer counts as a POD type,
which means gdbsupport/poison.h won't let us use memset to initialize
this type, which psymtabs rely on to clear padding bytes so that bcache
can work properly.

gdb/ChangeLog:

2019-12-15  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_add_block_symbols): Update.
	(ada_collect_symbol_completion_matches): Update.
	* ax-gdb.c (gen_expr): Update.
	* block.c (block_lookup_symbol): Update.
	(block_lookup_symbol_primary): Update.
	(block_find_symbol): Update.
	* cp-namespace.c (cp_lookup_symbol_imports_or_template): Update.
	* dbxread.c (process_one_symbol): Update.
	* dictionary.c (insert_symbol_hashed): Update.
	(collate_pending_symbols_by_language): Update.
	(mdict_add_symbol): Update.
	* dwarf-index-write.c (write_psymbols): Update.
	* dwarf2read.c (fixup_go_packaging): Update.
	* findvar.c (read_var_value): Update.
	* ft32-tdep.c (ft32_skip_prologue): Update.
	* go-lang.c (go_symbol_package_name): Update.
	* language.h (scoped_switch_to_sym_language_if_auto::
	scoped_switch_to_sym_language_if_auto): Update.
	* linespec.c (find_method): Update.
	(find_label_symbols_in_block): Update.
	* mdebugread.c (parse_symbol): Update.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	* minsyms.c (add_minsym_to_demangled_hash_table): Update.
	(minimal_symbol_reader::install): Update.
	* moxie-tdep.c (moxie_skip_prologue): Update.
	* parse.c (parse_exp_in_context): Update.
	* psymtab.c (psymbol_name_matches): Update.
	(match_partial_symbol): Update.
	(lookup_partial_symbol): Update.
	(psymbol_hash): Update.
	(psymbol_compare): Update.
	* python/py-framefilter.c (extract_sym): Update.
	(py_print_single_arg): Update.
	* stabsread.c (define_symbol): Update.
	* stack.c (print_frame_arg): Update.
	(find_frame_funname): Update.
	(info_frame_command_core): Update.
	* symfile.c (set_initial_language): Update.
	* symtab.c (symbol_set_demangled_name): Update.
	(symbol_get_demangled_name): Update.
	(symbol_set_language): Update.
	(symbol_find_demangled_name): Update.
	(symbol_set_names): Update.
	(general_symbol_info::natural_name): Update.
	(general_symbol_info::demangled_name): Update.
	(general_symbol_info::search_name): Update.
	(symbol_matches_search_name): Update.
	(eq_symbol_entry): Update.
	(iterate_over_symbols): Update.
	(completion_list_add_symbol): Update.
	(completion_list_add_msymbol): Update.
	(completion_list_add_fields): Update.
	* symtab.h (struct general_symbol_info) <language>: New function.
	<language>: Rename to...
	<m_language>: ...this.
	(SYMBOL_LANGUAGE): Remove.
	(MSYMBOL_LANGUAGE): Remove.
	(struct symbol) <ctor>: Update.
	* xstormy16-tdep.c (xstormy16_skip_prologue): Update.

Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
2019-12-16 00:44:36 -06:00
Philippe Waroquiers
e0fad1eadf Fix crash when command arg is missing in faas/taas/tfaas commands.
GDB crashes when doing:
  (gdb) faas
  Aborted

Do the needed check to avoid crashing.

gdb/ChangeLog
2019-12-06  Philippe Waroquiers  <philippe.waroquiers@skynet.be>
	* stack.c (faas_command): Check a command is provided.
	* thread.c (taas_command, tfaas_command): Likewise.

gdb/testsuite/ChangeLog
2019-12-06  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* gdb.threads/pthreads.exp: Test taas and tfaas without command.
	* gdb.base/frameapply.exp: Test faas without command.
2019-12-06 06:06:02 +01:00
Simon Marchi
cb8c24b661 Make a bunch of functions static
All these functions are only used in their respective files, they are
missing the static keyword, add them.

gdb/ChangeLog:

	 * arc-tdep.c (arc_insn_get_memory_base_reg): Make static.
	 (arc_insn_get_memory_offset): Likewise.
	 (arc_insn_dump): Likewise.
	 * cp-support.c (test_cp_symbol_name_matches): Likewise.
	 * csky-linux-tdep.c (csky_supply_fregset): Likewise.
	 * dictionary.c (dict_iterator_next): Likewise.
	 (dict_iter_match_first): Likewise.
	 (dict_iter_match_next): Likewise.
	 * f-lang.c (evaluate_subexp_f): Likewise.
	 * hppa-tdep.c (hppa_read_pc): Likewise.
	 * i386-tdep.c (i386_floatformat_for_type): Likewise.
	 * parse.c (write_exp_elt_msym): Likewise.
	 * ppc-linux-tdep.c (ppc_floatformat_for_type): Likewise.
	 * remote.c (remote_packet_size): Likewise.
	 (remote_notif_stop_parse): Likewise.
	 * rs6000-aix-tdep.c (aix_sighandle_frame_sniffer): Likewise.
	 * s12z-tdep.c (s12z_disassemble_info): Likewise.
	 * source.c (prepare_path_for_appending): Likewise.
	 * sparc64-linux-tdep.c
	 (sparc64_linux_handle_segmentation_fault); Likewise.
	 * stack.c (frame_selection_by_function_completer): Likewise.

Change-Id: I18e187ad279075b961e3e22e5b034f5c0f6188f0
2019-11-26 14:29:20 -05:00
Christian Biesinger
987012b89b Replace SYMBOL_*_NAME accessors with member functions
Similar to the MSYMBOL version of this patch, improves readability
and will eventually allow making name private.

gdb/ChangeLog:

2019-11-22  Christian Biesinger  <cbiesinger@google.com>

	* ada-exp.y: Update.
	* ada-lang.c (sort_choices): Update.
	(ada_print_symbol_signature): Update.
	(resolve_subexp): Update.
	(ada_parse_renaming): Update.
	(ada_read_renaming_var_value): Update.
	(lesseq_defined_than): Update.
	(remove_extra_symbols): Update.
	(remove_irrelevant_renamings): Update.
	(ada_add_block_symbols): Update.
	(ada_collect_symbol_completion_matches): Update.
	(ada_is_renaming_symbol): Update.
	(aggregate_assign_from_choices): Update.
	(ada_evaluate_subexp): Update.
	(ada_has_this_exception_support): Update.
	(ada_is_non_standard_exception_sym): Update.
	(ada_add_exceptions_from_frame): Update.
	(ada_add_global_exceptions): Update.
	(ada_print_subexp): Update.
	* ax-gdb.c (gen_var_ref): Update.
	(gen_maybe_namespace_elt): Update.
	(gen_expr_for_cast): Update.
	(gen_expr): Update.
	* block.h: Update.
	* blockframe.c (find_pc_partial_function): Update.
	* breakpoint.c (print_breakpoint_location): Update.
	(update_static_tracepoint): Update.
	* btrace.c (ftrace_print_function_name): Update.
	(ftrace_function_switched): Update.
	* buildsym.c (find_symbol_in_list): Update.
	* c-exp.y: Update.
	* c-typeprint.c (c_print_typedef): Update.
	(c_type_print_template_args): Update.
	* cli/cli-cmds.c (edit_command): Update.
	(list_command): Update.
	(print_sal_location): Update.
	* coffread.c (patch_opaque_types): Update.
	(process_coff_symbol): Update.
	(coff_read_enum_type): Update.
	* compile/compile-c-symbols.c (c_symbol_substitution_name): Update.
	(convert_one_symbol): Update.
	(hash_symname): Update.
	(eq_symname): Update.
	* compile/compile-cplus-symbols.c (convert_one_symbol): Update.
	* compile/compile-cplus-types.c (debug_print_scope): Update.
	* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update.
	* compile/compile-object-load.c (get_out_value_type): Update.
	* cp-namespace.c (cp_scan_for_anonymous_namespaces): Update.
	(search_symbol_list): Update.
	(cp_lookup_symbol_imports_or_template): Update.
	* cp-support.c (overload_list_add_symbol): Update.
	* ctfread.c (psymtab_to_symtab): Update.
	* dbxread.c (cp_set_block_scope): Update.
	* dictionary.c (iter_match_first_hashed): Update.
	(iter_match_next_hashed): Update.
	(insert_symbol_hashed): Update.
	(iter_match_next_linear): Update.
	* dictionary.h: Update.
	* dwarf2loc.c (func_get_frame_base_dwarf_block): Update.
	(locexpr_describe_location_piece): Update.
	(locexpr_describe_location_1): Update.
	(locexpr_generate_c_location): Update.
	(loclist_describe_location): Update.
	(loclist_generate_c_location): Update.
	* dwarf2read.c (dw2_debug_names_lookup_symbol): Update.
	(read_func_scope): Update.
	(process_enumeration_scope): Update.
	(new_symbol): Update.
	(dwarf2_const_value): Update.
	(dwarf2_symbol_mark_computed): Update.
	* eval.c (evaluate_funcall): Update.
	(evaluate_subexp_standard): Update.
	* expprint.c (print_subexp_standard): Update.
	(dump_subexp_body_standard): Update.
	* f-valprint.c (info_common_command_for_block): Update.
	* findvar.c (get_hosting_frame): Update.
	(default_read_var_value): Update.
	* go-lang.c (go_symbol_package_name): Update.
	* guile/scm-block.c (bkscm_print_block_smob): Update.
	* guile/scm-symbol.c (syscm_print_symbol_smob): Update.
	(gdbscm_symbol_name): Update.
	(gdbscm_symbol_linkage_name): Update.
	(gdbscm_symbol_print_name): Update.
	* infcall.c (get_function_name): Update.
	* infcmd.c (jump_command): Update.
	(finish_command): Update.
	* infrun.c (insert_exception_resume_breakpoint): Update.
	* linespec.c (canonicalize_linespec): Update.
	(create_sals_line_offset): Update.
	(convert_linespec_to_sals): Update.
	(complete_label): Update.
	(find_label_symbols_in_block): Update.
	* m2-typeprint.c (m2_print_typedef): Update.
	* mdebugread.c (mdebug_reg_to_regnum): Update.
	(parse_symbol): Update.
	(mylookup_symbol): Update.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	(list_args_or_locals): Update.
	* objc-lang.c (compare_selectors): Update.
	(info_selectors_command): Update.
	(compare_classes): Update.
	(info_classes_command): Update.
	(find_imps): Update.
	* p-typeprint.c (pascal_print_typedef): Update.
	* printcmd.c (build_address_symbolic): Update.
	(info_address_command): Update.
	(print_variable_and_value): Update.
	* python/py-framefilter.c (extract_sym): Update.
	(py_print_single_arg): Update.
	* python/py-symbol.c (sympy_str): Update.
	(sympy_get_name): Update.
	(sympy_get_linkage_name): Update.
	* python/python.c (gdbpy_rbreak): Update.
	* record-btrace.c (btrace_get_bfun_name): Update.
	(btrace_call_history): Update.
	* rust-lang.c (rust_print_typedef): Update.
	* solib-frv.c (frv_fdpic_find_canonical_descriptor): Update.
	* stabsread.c (stab_reg_to_regnum): Update.
	(define_symbol): Update.
	(read_enum_type): Update.
	(common_block_end): Update.
	(cleanup_undefined_types_1): Update.
	(scan_file_globals): Update.
	* stack.c (print_frame_arg): Update.
	(print_frame_args): Update.
	(find_frame_funname): Update.
	(info_frame_command_core): Update.
	(iterate_over_block_locals): Update.
	(print_block_frame_labels): Update.
	(do_print_variable_and_value): Update.
	(iterate_over_block_arg_vars): Update.
	(return_command): Update.
	* symmisc.c (dump_symtab_1): Update.
	(print_symbol): Update.
	* symtab.c (eq_symbol_entry): Update.
	(symbol_cache_dump): Update.
	(lookup_language_this): Update.
	(find_pc_sect_line): Update.
	(skip_prologue_sal): Update.
	(symbol_search::compare_search_syms): Update.
	(treg_matches_sym_type_name): Update.
	(search_symbols): Update.
	(print_symbol_info): Update.
	(rbreak_command): Update.
	(completion_list_add_symbol): Update.
	(find_gnu_ifunc): Update.
	(get_symbol_address): Update.
	(search_module_symbols): Update.
	(info_module_subcommand): Update.
	* symtab.h (SYMBOL_NATURAL_NAME): Remove.
	(SYMBOL_LINKAGE_NAME): Remove.
	(SYMBOL_DEMANGLED_NAME): Remove.
	(SYMBOL_PRINT_NAME): Remove.
	(SYMBOL_SEARCH_NAME): Remove.
	* tracepoint.c (set_traceframe_context): Update.
	(validate_actionline): Update.
	(collection_list::collect_symbol): Update.
	(encode_actions_1): Update.
	(info_scope_command): Update.
	(print_one_static_tracepoint_marker): Update.
	* typeprint.c (typedef_hash_table::add_template_parameters): Update.
	* valops.c (address_of_variable): Update.
	(find_overload_match): Update.
	(find_oload_champ): Update.

Change-Id: I76bdc8b44eea6876bf03af9d351f8e90cc0154b2
2019-11-22 12:05:14 -06:00
Christian Biesinger
c9d95fa3d0 Replace the MSYMBOL_*_NAME macros with member functions
Improves readability. In the future, it will also allow making the name
private, once the name setter functions become member functions.

gdb/ChangeLog:

2019-11-22  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_lookup_simple_minsym): Update.
	(ada_collect_symbol_completion_matches): Update.
	* ada-tasks.c (read_atcb): Update.
	* amd64-windows-tdep.c (amd64_skip_main_prologue): Update.
	(amd64_windows_skip_trampoline_code): Update.
	* arm-tdep.c (skip_prologue_function): Update.
	(arm_skip_stack_protector): Update.
	* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
	(arm_wince_skip_main_prologue): Update.
	* ax-gdb.c (gen_expr): Update.
	* block.c (call_site_for_pc): Update.
	* blockframe.c (find_pc_partial_function): Update.
	* breakpoint.c (set_breakpoint_location_function): Update.
	* btrace.c (ftrace_print_function_name): Update.
	(ftrace_function_switched): Update.
	* c-valprint.c (print_unpacked_pointer): Update.
	* coffread.c (coff_symfile_read): Update.
	* compile/compile-c-symbols.c (convert_symbol_bmsym): Update.
	* compile/compile-cplus-symbols.c (convert_symbol_bmsym): Update.
	* dwarf-index-write.c (write_psymbols): Update.
	* dwarf2loc.c (call_site_to_target_addr): Update.
	(func_verify_no_selftailcall): Update.
	(tailcall_dump): Update.
	(call_site_find_chain_1): Update.
	(dwarf_expr_reg_to_entry_parameter): Update.
	* elfread.c (elf_gnu_ifunc_record_cache): Update.
	* eval.c (evaluate_funcall): Update.
	(evaluate_subexp_standard): Update.
	(evaluate_subexp_for_sizeof): Update.
	* expprint.c (print_subexp_standard): Update.
	(dump_subexp_body_standard): Update.
	* frame.c (get_prev_frame_always_1): Update.
	* frv-tdep.c (frv_skip_main_prologue): Update.
	* gnu-v2-abi.c (gnuv2_value_rtti_type): Update.
	* gnu-v3-abi.c (gnuv3_rtti_type): Update.
	(gnuv3_get_typename_from_type_info): Update.
	(gnuv3_skip_trampoline): Update.
	* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update.
	* i386-tdep.c (i386_skip_main_prologue): Update.
	(i386_pe_skip_trampoline_code): Update.
	* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update.
	* infcall.c (get_function_name): Update.
	* linespec.c (minsym_found): Update.
	* linux-fork.c (info_checkpoints_command): Update.
	* m32c-tdep.c (m32c_m16c_address_to_pointer): Update.
	(m32c_m16c_pointer_to_address): Update.
	* maint.c (maintenance_translate_address): Update.
	* minsyms.c (add_minsym_to_hash_table): Update.
	(add_minsym_to_demangled_hash_table): Update.
	(lookup_minimal_symbol_mangled): Update.
	(lookup_minimal_symbol_demangled): Update.
	(lookup_minimal_symbol_linkage): Update.
	(lookup_minimal_symbol_text): Update.
	(lookup_minimal_symbol_by_pc_name): Update.
	(minimal_symbol_is_less_than): Update.
	(compact_minimal_symbols): Update.
	(build_minimal_symbol_hash_tables): Update.
	(find_solib_trampoline_target): Update.
	* mips-tdep.c (mips_stub_frame_sniffer): Update.
	(mips_skip_pic_trampoline_code): Update.
	* msp430-tdep.c (msp430_skip_trampoline_code): Update.
	* objc-lang.c (info_selectors_command): Update.
	(info_classes_command): Update.
	(find_methods): Update.
	(find_imps): Update.
	* p-valprint.c (pascal_val_print): Update.
	* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Update.
	* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
	* printcmd.c (build_address_symbolic): Update.
	(info_symbol_command): Update.
	* psymtab.c (psymbol_name_matches): Update.
	(match_partial_symbol): Update.
	(lookup_partial_symbol): Update.
	(print_partial_symbols): Update.
	(sort_pst_symbols): Update.
	(maintenance_check_psymtabs): Update.
	* python/py-framefilter.c (py_print_frame): Update.
	* python/python.c (gdbpy_rbreak): Update.
	* record-btrace.c (btrace_get_bfun_name): Update.
	(btrace_call_history): Update.
	* rs6000-tdep.c (rs6000_skip_main_prologue): Update.
	(rs6000_skip_trampoline_code): Update.
	* sol-thread.c (info_cb): Update.
	* stabsread.c (scan_file_globals): Update.
	* stack.c (find_frame_funname): Update.
	(info_frame_command_core): Update.
	* symmisc.c (dump_msymbols): Update.
	* symtab.c (symbol_natural_name): Rename to..,
	(general_symbol_info::natural_name): ...this.
	(symbol_demangled_name): Rename to...
	(general_symbol_info::demangled_name): ...this.
	(symbol_search_name): Rename to...
	(general_symbol_info::search_name): ...this.
	(symbol_matches_search_name): Update.
	(find_pc_sect_line): Update.
	(skip_prologue_sal): Update.
	(search_symbols): Update.
	(print_msymbol_info): Update.
	(rbreak_command): Update.
	(completion_list_add_msymbol): Update.
	(completion_list_objc_symbol): Update.
	(get_msymbol_address): Update.
	* symtab.h (struct general_symbol_info): Add member functions
	natural_name (), linkage_name (), print_name (), demangled_name (),
	and search_name ().
	(SYMBOL_NATURAL_NAME): Update.
	(symbol_natural_name): Move to a member function on general_symbol_info.
	(SYMBOL_DEMANGLED_NAME): Update.
	(symbol_demangled_name): Move to a member function on
	general_symbol_info.
	(SYMBOL_SEARCH_NAME): Update.
	(symbol_search_name): Move to a member function on general_symbol_info.
	(MSYMBOL_NATURAL_NAME): Remove.
	(MSYMBOL_LINKAGE_NAME): Remove.
	(MSYMBOL_PRINT_NAME): Remove.
	(MSYMBOL_DEMANGLED_NAME): Remove.
	(MSYMBOL_SEARCH_NAME): Remove.
	* x86-tdep.c (x86_in_indirect_branch_thunk): Update.

Change-Id: I65aa529843a9903e174ce799037e41f954a9fcee
2019-11-22 12:05:14 -06:00
Andrew Burgess
eb2dd8df76 gdb: Add a class to track last display symtab and line information
In stack.c we currently have a set of static global variables to track
the last displayed symtab and line.  This commit moves all of these
into a class and adds an instance of the class to track the same
information.

The API into stack.c is unchanged after this cleanup.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* stack.c (set_last_displayed_sal): Delete.
	(last_displayed_sal_valid): Delete.
	(last_displayed_pspace): Delete.
	(last_displayed_addr): Delete.
	(last_displayed_symtab): Delete.
	(last_displayed_line): Delete.
	(class last_displayed_symtab_info_type): New.
	(last_displayed_symtab_info): New static global variable.
	(print_frame_info): Call methods on last_displayed_symtab_info.
	(clear_last_displayed_sal): Update header comment, and make use of
	last_displayed_symtab_info.
	(last_displayed_sal_is_valid): Likewise.
	(get_last_displayed_pspace): Likewise.
	(get_last_displayed_addr): Likewise.
	(get_last_displayed_symtab): Likewise.
	(get_last_displayed_line): Likewise.
	(get_last_displayed_sal): Likewise.
	* stack.h (clear_last_displayed_sal): Update header comment.
	(last_displayed_sal_is_valid): Likewise.
	(get_last_displayed_pspace): Likewise.
	(get_last_displayed_addr): Likewise.
	(get_last_displayed_symtab): Likewise.
	(get_last_displayed_line): Likewise.
	(get_last_displayed_sal): Likewise.

Change-Id: Ia3dbfe267feec03108c5c8ed8bd94fc0a030c3ed
2019-11-10 21:00:14 +00:00
Andrew Burgess
621377757c gdb: Convert frame_show_address to return a bool
Just a clean up, should be no user visible changes after this commit.

gdb/ChangeLog:

	* stack.c (frame_show_address): Convert return type to bool.
	* stack.h (frame_show_address): Likewise, and update header
	comment.

Change-Id: Iaaa9ebd4ff6534db19c5329f1c604932c747bd7f
2019-11-10 21:00:13 +00:00
Tom de Vries
85102364b2 [gdb] Fix more typos in comments
Fix typos in comments.  NFC.

Tested on x86_64-linux.

gdb/ChangeLog:

2019-10-18  Tom de Vries  <tdevries@suse.de>

	* aarch64-tdep.c: Fix typos in comments.
	* ada-lang.c: Same.
	* ada-tasks.c: Same.
	* alpha-tdep.c: Same.
	* alpha-tdep.h: Same.
	* amd64-nat.c: Same.
	* amd64-windows-tdep.c: Same.
	* arc-tdep.c: Same.
	* arc-tdep.h: Same.
	* arch-utils.c: Same.
	* arm-nbsd-tdep.c: Same.
	* arm-tdep.c: Same.
	* ax-gdb.c: Same.
	* blockframe.c: Same.
	* btrace.c: Same.
	* c-varobj.c: Same.
	* coff-pe-read.c: Same.
	* coffread.c: Same.
	* cris-tdep.c: Same.
	* darwin-nat.c: Same.
	* dbxread.c: Same.
	* dcache.c: Same.
	* disasm.c: Same.
	* dtrace-probe.c: Same.
	* dwarf-index-write.c: Same.
	* dwarf2-frame-tailcall.c: Same.
	* dwarf2-frame.c: Same.
	* dwarf2read.c: Same.
	* eval.c: Same.
	* exceptions.c: Same.
	* fbsd-tdep.c: Same.
	* findvar.c: Same.
	* frame.c: Same.
	* frv-tdep.c: Same.
	* gnu-v3-abi.c: Same.
	* go32-nat.c: Same.
	* h8300-tdep.c: Same.
	* hppa-tdep.c: Same.
	* i386-linux-tdep.c: Same.
	* i386-tdep.c: Same.
	* ia64-libunwind-tdep.c: Same.
	* ia64-tdep.c: Same.
	* infcmd.c: Same.
	* infrun.c: Same.
	* linespec.c: Same.
	* linux-nat.c: Same.
	* linux-thread-db.c: Same.
	* machoread.c: Same.
	* mdebugread.c: Same.
	* mep-tdep.c: Same.
	* mn10300-tdep.c: Same.
	* namespace.c: Same.
	* objfiles.c: Same.
	* opencl-lang.c: Same.
	* or1k-tdep.c: Same.
	* osabi.c: Same.
	* ppc-linux-nat.c: Same.
	* ppc-linux-tdep.c: Same.
	* ppc-sysv-tdep.c: Same.
	* printcmd.c: Same.
	* procfs.c: Same.
	* record-btrace.c: Same.
	* record-full.c: Same.
	* remote-fileio.c: Same.
	* remote.c: Same.
	* rs6000-tdep.c: Same.
	* s12z-tdep.c: Same.
	* score-tdep.c: Same.
	* ser-base.c: Same.
	* ser-go32.c: Same.
	* skip.c: Same.
	* sol-thread.c: Same.
	* solib-svr4.c: Same.
	* solib.c: Same.
	* source.c: Same.
	* sparc-nat.c: Same.
	* sparc-sol2-tdep.c: Same.
	* sparc-tdep.c: Same.
	* sparc64-tdep.c: Same.
	* stabsread.c: Same.
	* stack.c: Same.
	* symfile.c: Same.
	* symtab.c: Same.
	* target-descriptions.c: Same.
	* target-float.c: Same.
	* thread.c: Same.
	* utils.c: Same.
	* valops.c: Same.
	* valprint.c: Same.
	* value.c: Same.
	* varobj.c: Same.
	* windows-nat.c: Same.
	* xcoffread.c: Same.
	* xstormy16-tdep.c: Same.
	* xtensa-tdep.c: Same.

Change-Id: I5175f1b107bfa4e1cdd4a3361ccb4739e53c75c4
2019-10-18 02:48:08 +02:00
Tom de Vries
405feb71d4 [gdb] Fix typos in comments
Fix typos in comments.  NFC.

Tested on x86_64-linux.

gdb/ChangeLog:

2019-10-17  Tom de Vries  <tdevries@suse.de>

	* arm-nbsd-nat.c: Fix typos in comments.
	* arm-tdep.c: Same.
	* darwin-nat-info.c: Same.
	* dwarf2read.c: Same.
	* elfread.c: Same.
	* event-top.c: Same.
	* findvar.c: Same.
	* gdbtypes.c: Same.
	* hppa-tdep.c: Same.
	* i386-tdep.c: Same.
	* jit.c: Same.
	* main.c: Same.
	* mdebugread.c: Same.
	* moxie-tdep.c: Same.
	* nto-procfs.c: Same.
	* osabi.c: Same.
	* ppc-linux-tdep.c: Same.
	* remote.c: Same.
	* riscv-tdep.c: Same.
	* s390-tdep.c: Same.
	* sh-tdep.c: Same.
	* sparc-linux-tdep.c: Same.
	* sparc-nat.c: Same.
	* stack.c: Same.
	* target-descriptions.c: Same.
	* top.c: Same.
	* varobj.c: Same.

Change-Id: I6047967abd2d51c9000dea15184d19f4e952c3ff
2019-10-17 18:06:36 +02:00
Tom Tromey
9d636d67e0 Use styled_string in more places
This adds more uses of styled_string, changing gdb to style some
output that was previously left unstyled.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* stack.c (print_frame, info_frame_command_core): Use
	styled_string.
	* linux-thread-db.c (try_thread_db_load_1)
	(try_thread_db_load_from_pdir_1): Use styled_string.
	* auto-load.c (file_is_auto_load_safe, execute_script_contents)
	(auto_load_section_scripts, info_auto_load_local_gdbinit)
	(maybe_print_unsupported_script_warning)
	(maybe_print_script_not_found_warning): Use styled_string.
	* ada-lang.c (user_select_syms): Use styled_string.
2019-10-01 15:12:40 -06:00
Tom Tromey
7f6aba03b9 Introduce metadata style
This introduces a new "metadata" style and changes many places in gdb
to use it.  The idea here is to let the user distinguish gdb output
from output that (conceptually at least) comes directly from the
inferior.  The newly-styled category includes text that gdb
traditionally surrounds in "<...>", like "<unavailable>".

I only added a single test for this.  In many cases this output is
difficult to test.  Also, while developing this errors in the
implementation of the new printf formats showed up as regressions.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* p-lang.c (pascal_printstr): Use metadata style.
	* value.c (show_convenience): Use metadata style.
	* valprint.c (valprint_check_validity, val_print_optimized_out)
	(val_print_not_saved, val_print_unavailable)
	(val_print_invalid_address, generic_val_print, val_print)
	(value_check_printable, val_print_array_elements): Use metadata
	style.
	* ui-out.h (class ui_out) <field_fmt>: New overload.
	<do_field_fmt>: Add style parameter.
	* ui-out.c (ui_out::field_fmt): New overload.
	* typeprint.c (type_print_unknown_return_type)
	(val_print_not_allocated, val_print_not_associated): Use metadata
	style.
	* tui/tui-out.h (class tui_ui_out) <do_field_fmt>: Add style
	parameter.
	* tui/tui-out.c (tui_ui_out::do_field_fmt): Update.
	* tracepoint.c (tvariables_info_1): Use metadata style.
	* stack.c (print_frame_arg, print_frame_info, print_frame)
	(info_frame_command_core): Use metadata style.
	* skip.c (info_skip_command): Use metadata style.
	* rust-lang.c (rust_print_enum): Use metadata style.
	* python/py-prettyprint.c (print_stack_unless_memory_error): Use
	metadata style.
	* python/py-framefilter.c (py_print_single_arg): Use metadata
	style.
	* printcmd.c (do_one_display, print_variable_and_value): Use
	metadata style.
	* p-valprint.c (pascal_val_print)
	(pascal_object_print_value_fields): Use metadata style.
	* p-typeprint.c (pascal_type_print_base): Use metadata style.
	* mi/mi-out.h (class mi_ui_out) <do_field_fmt>: Add style
	parameter.
	* mi/mi-out.c (mi_ui_out::do_field_fmt): Update.
	* m2-valprint.c (m2_print_long_set): Use metadata style.
	* m2-typeprint.c (m2_print_type): Use metadata style.
	* infcmd.c (print_return_value_1): Use metadata style.
	* gnu-v3-abi.c (print_one_vtable): Use metadata style.
	* f-valprint.c (info_common_command_for_block): Use metadata
	style.
	* f-typeprint.c (f_type_print_base): Use metadata style.
	* expprint.c (print_subexp_standard): Use metadata style.
	* cp-valprint.c (cp_print_value_fields): Use metadata style.
	* cli/cli-style.h (class cli_style_option): Add constructor.
	(metadata_style): Declare.
	* cli/cli-style.c (metadata_style): New global.
	(_initialize_cli_style): Register metadata style.
	* cli-out.h (class cli_ui_out) <do_field_fmt>: Add style
	parameter.
	* cli-out.c (cli_ui_out::do_field_fmt): Update.
	* c-typeprint.c (c_type_print_base_struct_union)
	(c_type_print_base_1): Use metadata style.
	* breakpoint.c (watchpoint_value_print)
	(print_one_breakpoint_location): Use metadata style.
	* break-catch-syscall.c (print_one_catch_syscall): Use metadata
	style.
	* break-catch-sig.c (signal_catchpoint_print_one): Use metadata
	style.
	* ada-valprint.c (val_print_packed_array_elements, printstr)
	(print_field_values, ada_val_print_ref, ada_val_print): Use
	metadata style.
	* ada-typeprint.c (print_array_type, ada_print_type): Use metadata
	style.
	* ada-tasks.c (print_ada_task_info, info_task): Use metadata
	style.
	* ada-lang.c (user_select_syms): Use metadata style.

gdb/testsuite/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* lib/gdb-utils.exp (style): Handle "metadata" argument.
	* gdb.base/style.exp: Add metadata style test.
2019-10-01 15:12:40 -06:00
Tom Tromey
e43b10e10e Remove the ui_out_style_kind enum
This removes the ui_out_style_kind enum, in favor of simply using
ui_file_style references.  This simplifies the code somewhat.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* ui-out.h (enum class ui_out_style_kind): Remove.
	(class ui_out) <field_string, field_stsream, do_field_string>:
	Change type of "style".
	* ui-out.c (ui_out::field_core_addr, ui_out::field_stream)
	(ui_out::field_string): Update.
	* tui/tui-out.h (class tui_ui_out) <do_field_string>: Change type
	of "style".
	* tui/tui-out.c (tui_ui_out::do_field_string): Update.
	* tracepoint.c (print_one_static_tracepoint_marker): Update.
	* stack.c (print_frame_arg, print_frame_info, print_frame):
	Update.
	* source.c (print_source_lines_base): Update.
	* solib.c (info_sharedlibrary_command): Update.
	* skip.c (info_skip_command): Update.
	* record-btrace.c (btrace_call_history_src_line)
	(btrace_call_history): Update.
	* python/py-framefilter.c (py_print_frame): Update.
	* mi/mi-out.h (class mi_ui_out) <do_field_string>: Change type of
	"style".
	* mi/mi-out.c (mi_ui_out::do_table_header)
	(mi_ui_out::do_field_signed, mi_ui_out::do_field_unsigned)
	(mi_ui_out::do_field_string): Update.
	* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
	Update.
	* cli-out.h (class cli_ui_out) <do_field_string>: Change type of
	"style".
	* cli-out.c (cli_ui_out::do_table_header)
	(cli_ui_out::do_field_signed, cli_ui_out::do_field_unsigned)
	(cli_ui_out::do_field_skip, cli_ui_out::do_field_string)
	(cli_ui_out::do_field_fmt): Update.
	* breakpoint.c (print_breakpoint_location): Update.
	(update_static_tracepoint): Update.
2019-10-01 15:12:37 -06:00
Christian Biesinger
491144b5e2 Change boolean options to bool instead of int
This is for add_setshow_boolean_cmd as well as the gdb::option interface.

gdb/ChangeLog:

2019-09-17  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_ignore_descriptive_types_p): Change to bool.
	(print_signatures): Likewise.
	(trust_pad_over_xvs): Likewise.
	* arch/aarch64-insn.c (aarch64_debug): Likewise.
	* arch/aarch64-insn.h (aarch64_debug): Likewise.
	* arm-linux-nat.c (arm_apcs_32): Likewise.
	* arm-linux-tdep.c (arm_apcs_32): Likewise.
	* arm-nbsd-nat.c (arm_apcs_32): Likewise.
	* arm-tdep.c (arm_debug): Likewise.
	(arm_apcs_32): Likewise.
	* auto-load.c (debug_auto_load): Likewise.
	(auto_load_gdb_scripts): Likewise.
	(global_auto_load): Likewise.
	(auto_load_local_gdbinit): Likewise.
	(auto_load_local_gdbinit_loaded): Likewise.
	* auto-load.h (global_auto_load): Likewise.
	(auto_load_local_gdbinit): Likewise.
	(auto_load_local_gdbinit_loaded): Likewise.
	* breakpoint.c (disconnected_dprintf): Likewise.
	(breakpoint_proceeded): Likewise.
	(automatic_hardware_breakpoints): Likewise.
	(always_inserted_mode): Likewise.
	(target_exact_watchpoints): Likewise.
	(_initialize_breakpoint): Update.
	* breakpoint.h (target_exact_watchpoints): Change to bool.
	* btrace.c (maint_btrace_pt_skip_pad): Likewise.
	* cli/cli-cmds.c (trace_commands): Likewise.
	* cli/cli-cmds.h (trace_commands): Likewise.
	* cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument
	to bool*.
	* cli/cli-logging.c (logging_overwrite): Change to bool.
	(logging_redirect): Likewise.
	(debug_redirect): Likewise.
	* cli/cli-option.h (option_def) <boolean>: Change return type to bool*.
	(struct boolean_option_def) <get_var_address_cb_>: Change return type
	to bool.
	<boolean_option_def>: Update.
	(struct flag_option_def): Change default type of Context to bool
	from int.
	<flag_option_def>: Change return type of var_address_cb_ to bool*.
	* cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*.
	(get_setshow_command_value_string): Likewise.
	* cli/cli-style.c (cli_styling): Change to bool.
	(source_styling): Likewise.
	* cli/cli-style.h (source_styling): Likewise.
	(cli_styling): Likewise.
	* cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change
	to bool.
	* command.h (var_types): Update comment.
	(add_setshow_boolean_cmd): Change int* var argument to bool*.
	* compile/compile-cplus-types.c (debug_compile_cplus_types): Change to
	bool.
	(debug_compile_cplus_scopes): Likewise.
	* compile/compile-internal.h (compile_debug): Likewise.
	* compile/compile.c (compile_debug): Likewise.
	(struct compile_options) <raw>: Likewise.
	* cp-support.c (catch_demangler_crashes): Likewise.
	* cris-tdep.c (usr_cmd_cris_version_valid): Likewise.
	(usr_cmd_cris_dwarf2_cfi): Likewise.
	* csky-tdep.c (csky_debug): Likewise.
	* darwin-nat.c (enable_mach_exceptions): Likewise.
	* dcache.c (dcache_enabled_p): Likewise.
	* defs.h (info_verbose): Likewise.
	* demangle.c (demangle): Likewise.
	(asm_demangle): Likewise.
	* dwarf-index-cache.c (debug_index_cache): Likewise.
	* dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise.
	* dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise.
	* dwarf2read.c (check_physname): Likewise.
	(use_deprecated_index_sections): Likewise.
	(dwarf_always_disassemble): Likewise.
	* eval.c (overload_resolution): Likewise.
	* event-top.c (set_editing_cmd_var): Likewise.
	(exec_done_display_p): Likewise.
	* event-top.h (set_editing_cmd_var): Likewise.
	(exec_done_display_p): Likewise.
	* exec.c (write_files): Likewise.
	* fbsd-nat.c (debug_fbsd_lwp): Likewise
	(debug_fbsd_nat): Likewise.
	* frame.h (struct frame_print_options) <print_raw_frame_arguments>:
	Likewise.
	(struct set_backtrace_options) <backtrace_past_main>: Likewise.
	<backtrace_past_entry> Likewise.
	* gdb-demangle.h (demangle): Likewise.
	(asm_demangle): Likewise.
	* gdb_bfd.c (bfd_sharing): Likewise.
	* gdbcore.h (write_files): Likewise.
	* gdbsupport/common-debug.c (show_debug_regs): Likewise.
	* gdbsupport/common-debug.h (show_debug_regs): Likewise.
	* gdbthread.h (print_thread_events): Likewise.
	* gdbtypes.c (opaque_type_resolution): Likewise.
	(strict_type_checking): Likewise.
	* gnu-nat.c (gnu_debug_flag): Likewise.
	* guile/scm-auto-load.c (auto_load_guile_scripts): Likewise.
	* guile/scm-param.c (pascm_variable): Add boolval.
	(add_setshow_generic): Update.
	(pascm_param_value): Update.
	(pascm_set_param_value_x): Update.
	* hppa-tdep.c (hppa_debug): Change to bool..
	* infcall.c (may_call_functions_p): Likewise.
	(coerce_float_to_double_p): Likewise.
	(unwind_on_signal_p): Likewise.
	(unwind_on_terminating_exception_p): Likewise.
	* infcmd.c (startup_with_shell): Likewise.
	* inferior.c (print_inferior_events): Likewise.
	* inferior.h (startup_with_shell): Likewise.
	(print_inferior_events): Likewise.
	* infrun.c (step_stop_if_no_debug): Likewise.
	(detach_fork): Likewise.
	(debug_displaced): Likewise.
	(disable_randomization): Likewise.
	(non_stop): Likewise.
	(non_stop_1): Likewise.
	(observer_mode): Likewise.
	(observer_mode_1): Likewise.
	(set_observer_mode): Update.
	(sched_multi): Change to bool.
	* infrun.h (debug_displaced): Likewise.
	(sched_multi): Likewise.
	(step_stop_if_no_debug): Likewise.
	(non_stop): Likewise.
	(disable_randomization): Likewise.
	* linux-tdep.c (use_coredump_filter): Likewise.
	(dump_excluded_mappings): Likewise.
	* linux-thread-db.c (auto_load_thread_db): Likewise.
	(check_thread_db_on_load): Likewise.
	* main.c (captured_main_1): Update.
	* maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt,
	xx2_opt, boolean_opt>: Change to bool.
	* maint-test-settings.c (maintenance_test_settings_boolean): Likewise.
	* maint.c (maintenance_profile_p): Likewise.
	(per_command_time): Likewise.
	(per_command_space): Likewise.
	(per_command_symtab): Likewise.
	* memattr.c (inaccessible_by_default): Likewise.
	* mi/mi-main.c (mi_async): Likewise.
	(mi_async_1): Likewise.
	* mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise.
	* nat/fork-inferior.h (startup_with_shell): Likewise.
	* nat/linux-namespaces.c (debug_linux_namespaces): Likewise.
	* nat/linux-namespaces.h (debug_linux_namespaces): Likewise.
	* nios2-tdep.c (nios2_debug): Likewise.
	* or1k-tdep.c (or1k_debug): Likewise.
	* parse.c (parser_debug): Likewise.
	* parser-defs.h (parser_debug): Likewise.
	* printcmd.c (print_symbol_filename): Likewise.
	* proc-api.c (procfs_trace): Likewise.
	* python/py-auto-load.c (auto_load_python_scripts): Likewise.
	* python/py-param.c (union parmpy_variable): Add "bool boolval" field.
	(set_parameter_value): Update.
	(add_setshow_generic): Update.
	* python/py-value.c (copy_py_bool_obj): Change argument from int*
	to bool*.
	* python/python.c (gdbpy_parameter_value): Cast to bool* instead of
	int*.
	* ravenscar-thread.c (ravenscar_task_support): Change to bool.
	* record-btrace.c (record_btrace_target::store_registers): Update.
	* record-full.c (record_full_memory_query): Change to bool.
	(record_full_stop_at_limit): Likewise.
	* record-full.h (record_full_memory_query): Likewise.
	* remote-notif.c (notif_debug): Likewise.
	* remote-notif.h (notif_debug): Likewise.
	* remote.c (use_range_stepping): Likewise.
	(interrupt_on_connect): Likewise.
	(remote_break): Likewise.
	* ser-tcp.c (tcp_auto_retry): Likewise.
	* ser-unix.c (serial_hwflow): Likewise.
	* skip.c (debug_skip): Likewise.
	* solib-aix.c (solib_aix_debug): Likewise.
	* spu-tdep.c (spu_stop_on_load_p): Likewise.
	(spu_auto_flush_cache_p): Likewise.
	* stack.c (struct backtrace_cmd_options) <full, no_filters, hide>:
	Likewise.
	(struct info_print_options) <quiet>: Likewise.
	* symfile-debug.c (debug_symfile): Likewise.
	* symfile.c (auto_solib_add): Likewise.
	(separate_debug_file_debug): Likewise.
	* symfile.h (auto_solib_add): Likewise.
	(separate_debug_file_debug): Likewise.
	* symtab.c (basenames_may_differ): Likewise.
	(struct filename_partial_match_opts) <dirname, basename>: Likewise.
	(struct info_print_options) <quiet, exclude_minsyms>: Likewise.
	(struct info_types_options) <quiet>: Likewise.
	* symtab.h (demangle): Likewise.
	(basenames_may_differ): Likewise.
	* target-dcache.c (stack_cache_enabled_1): Likewise.
	(code_cache_enabled_1): Likewise.
	* target.c (trust_readonly): Likewise.
	(may_write_registers): Likewise.
	(may_write_memory): Likewise.
	(may_insert_breakpoints): Likewise.
	(may_insert_tracepoints): Likewise.
	(may_insert_fast_tracepoints): Likewise.
	(may_stop): Likewise.
	(auto_connect_native_target): Likewise.
	(target_stop_and_wait): Update.
	(target_async_permitted): Change to bool.
	(target_async_permitted_1): Likewise.
	(may_write_registers_1): Likewise.
	(may_write_memory_1): Likewise.
	(may_insert_breakpoints_1): Likewise.
	(may_insert_tracepoints_1): Likewise.
	(may_insert_fast_tracepoints_1): Likewise.
	(may_stop_1): Likewise.
	* target.h (target_async_permitted): Likewise.
	(may_write_registers): Likewise.
	(may_write_memory): Likewise.
	(may_insert_breakpoints): Likewise.
	(may_insert_tracepoints): Likewise.
	(may_insert_fast_tracepoints): Likewise.
	(may_stop): Likewise.
	* thread.c (struct info_threads_opts) <show_global_ids>: Likewise.
	(make_thread_apply_all_options_def_group): Change argument from int*
	to bool*.
	(thread_apply_all_command): Update.
	(print_thread_events): Change to bool.
	* top.c (confirm): Likewise.
	(command_editing_p): Likewise.
	(history_expansion_p): Likewise.
	(write_history_p): Likewise.
	(info_verbose): Likewise.
	* top.h (confirm): Likewise.
	(history_expansion_p): Likewise.
	* tracepoint.c (disconnected_tracing): Likewise.
	(circular_trace_buffer): Likewise.
	* typeprint.c (print_methods): Likewise.
	(print_typedefs): Likewise.
	* utils.c (debug_timestamp): Likewise.
	(sevenbit_strings): Likewise.
	(pagination_enabled): Likewise.
	* utils.h (sevenbit_strings): Likewise.
	(pagination_enabled): Likewise.
	* valops.c (overload_resolution): Likewise.
	* valprint.h (struct value_print_options) <prettyformat_arrays,
	prettyformat_structs, vtblprint, unionprint, addressprint, objectprint,
	stop_print_at_null, print_array_indexes, deref_ref, static_field_print,
	pascal_static_field_print, raw, summary, symbol_print, finish_print>:
	Likewise.
	* windows-nat.c (new_console): Likewise.
	(cygwin_exceptions): Likewise.
	(new_group): Likewise.
	(debug_exec): Likewise.
	(debug_events): Likewise.
	(debug_memory): Likewise.
	(debug_exceptions): Likewise.
	(useshell): Likewise.
	* windows-tdep.c (maint_display_all_tib): Likewise.
	* xml-support.c (debug_xml): Likewise.
2019-09-18 09:35:12 +09:00
Andrew Burgess
4acfdd20c9 gdb: Add new -n flag to some info commands
The 'info variables', its alias 'whereis', and 'info functions' all
include non-debug symbols in the output by default.  The list of
non-debug symbols can sometimes be quite long, resulting in the
debug symbol based results being scrolled off the screen.

This commit adds a '-n' flag to all of the commands listed above that
excludes the non-debug symbols from the results, leaving just the
debug symbol based results.

gdb/ChangeLog:

	* cli/cli-utils.c (info_print_options_defs): Delete.
	(make_info_print_options_def_group): Delete.
	(extract_info_print_options): Delete.
	(info_print_command_completer): Delete.
	(info_print_args_help): Add extra parameter, and optionally
	include text about -n flag.
	* cli/cli-utils.h (struct info_print_options): Delete.
	(extract_info_print_options): Delete declaration.
	(info_print_command_completer): Delete declaration.
	(info_print_args_help): Add extra parameter, extend header
	comment.
	* python/python.c (gdbpy_rbreak): Pass additional parameter to
	search_symbols.
	* stack.c (struct info_print_options): New type.
	(info_print_options_defs): New file scoped variable.
	(make_info_print_options_def_group): New static function.
	(info_print_command_completer): New static function.
	(info_locals_command): Update to use new local functions.
	(info_args_command): Likewise.
	(_initialize_stack): Add extra parameter to calls to
	info_print_args_help.
	* symtab.c (search_symbols): Add extra parameter, use this to
	possibly excluse non-debug symbols.
	(symtab_symbol_info): Add extra parameter, which is passed on to
	search_symbols.
	(struct info_print_options): New type.
	(info_print_options_defs): New file scoped variable.
	(make_info_print_options_def_group): New static function.
	(info_print_command_completer): New static function.
	(info_variables_command): Update to use local functions, and pass
	extra parameter through to symtab_symbol_info.
	(info_functions_command): Likewise.
	(info_types_command): Pass additional argument through to
	symtab_symbol_info.
	(rbreak_command): Pass extra argument to search_symbols.
	(_initialize_symtab): Add extra arguments for calls to
	info_print_args_help, and update help text for 'info variables',
	'whereis', and 'info functions' commands.
	* symtab.h (search_symbols): Add extra argument to declaration.
	* NEWS: Mention new flags.

gdb/doc/ChangeLog:

	* gdb.texinfo (Symbols): Add information about the -n flag to
	"info variables" and "info functions".

gdb/testsuite/ChangeLog:

	* gdb.base/info-fun.exp: Extend to test the -n flag for 'info
	functions'.  Reindent as needed.
	* gdb.base/info-var-f1.c: New file.
	* gdb.base/info-var-f2.c: New file.
	* gdb.base/info-var.exp: New file.
	* gdb.base/info-var.h: New file.
2019-08-27 16:21:42 +01:00
Alan Hayward
aa7ca1bb44 Move [PAC] into a new MI field addr_flags
Add a new print_pc which prints both the PC and a new field addr_flags.
Call this wherever the PC is printed in stack.c.

Add a new gdbarch method get_pc_address_flags to obtain the addr_flag
contents. By default returns an empty string, on AArch64 this returns
PAC if the address has been masked in the frame.

Document this in the manual and NEWS file.

gdb/ChangeLog:

	* NEWS (Other MI changes): New subsection.
	* aarch64-tdep.c (aarch64_get_pc_address_flags): New function.
	(aarch64_gdbarch_init): Add aarch64_get_pc_address_flags.
	* arch-utils.c (default_get_pc_address_flags): New function.
	* arch-utils.h (default_get_pc_address_flags): New declaration.
	* gdbarch.sh: Add get_pc_address_flags.
	* gdbarch.c: Regenerate.
	* gdbarch.h: Likewise.
	* stack.c (print_pc): New function.
	(print_frame_info) (print_frame): Call print_pc.

gdb/doc/ChangeLog:

	* gdb.texinfo (AArch64 Pointer Authentication)
	(GDB/MI Breakpoint Information) (Frame Information): Document
	addr_field.
2019-08-16 10:19:18 +01:00
Tom Tromey
123cd85148 Make struct frame_arg self-managing
This changes struct frame_arg to be self-managing and then fixes the
various users.

Tested by the buildbot.

gdb/ChangeLog
2019-08-07  Tom Tromey  <tromey@adacore.com>

	* stack.c (print_frame_arg, read_frame_local, read_frame_arg)
	(print_frame_args): Update.
	* python/py-framefilter.c (py_print_single_arg, enumerate_args):
	Update.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	* frame.h (struct frame_arg): Add initializers.
	<error>: Now a unique_xmalloc_ptr.
2019-08-07 06:37:21 -06:00
Alan Hayward
3d31bc39e6 AArch64 pauth: Indicate unmasked addresses in backtrace
Armv8.3-a Pointer Authentication causes the function return address to be
obfuscated on entry to some functions. GDB must unmask the link register in
order to produce a backtrace.

The following patch adds markers of [PAC] to the bracktrace, to indicate
which addresses needed unmasking.  This includes the backtrace when using MI.

For example, consider the following backtrace:

(gdb) bt
0  0x0000000000400490 in puts@plt ()
1  0x00000000004005dc in foo ("hello") at cbreak-lib.c:6
2  0x0000000000400604 [PAC] in bar () at cbreak-lib.c:12
3  0x0000000000400620 [PAC] in main2 () at cbreak.c:17
4  0x00000000004005b4 in main () at cbreak-3.c:10

The functions in cbreak-lib use pointer auth, which masks the return address
to the previous function, causing the addresses of bar (in the library) and main2
(in the main binary) to require unmasking in order to unwind the backtrace.

An extra bool is added alongside the prev_pc in the frame structure.  At the
point at which the link register is unmasked, the AArch64 port calls into frame
to sets the bool.  This is the most efficient way of doing it.

The marker is also added to the python frame printer, which is always printed if
set.  The marker is not explicitly exposed to the python code.

I expect this will potentially cause issues with some tests in the testsuite
when Armv8.3 pointer authentication is used.  This should be fixed up in the
the future once real hardware is available for full testsuite testing.

gdb/ChangeLog:

        * NEWS: Expand the Pointer Authentication entry.
        * aarch64-tdep.c (aarch64_frame_unmask_address): Rename from this.
        (aarch64_frame_unmask_lr): ... to this.
        (aarch64_prologue_prev_register, aarch64_dwarf2_prev_register):
        Call aarch64_frame_unmask_lr.
        * frame.c (struct frame_info): Add "masked" variable.
        (frame_set_previous_pc_masked) (frame_get_pc_masked): New functions.
        (fprint_frame): Check for masked pc.
        * frame.h (frame_set_previous_pc_masked) (frame_get_pc_masked): New
        declarations.
	* python/py-framefilter.c (py_print_frame): Check for masked pc.
        * stack.c (print_frame): Check for masked pc.

gdb/doc/ChangeLog:

        * gdb.texinfo (AArch64 Pointer Authentication): New subsection.
2019-08-07 13:34:12 +01:00
Philippe Waroquiers
590042fc45 Make first and last lines of 'command help documentation' consistent.
With this patch, the help docs now respect 2 invariants:
  * The first line of a command help is terminated by a '.' character.
  * The last character of a command help is not a newline character.

Note that the changes for the last invariant were done by Tom, as part of :
 [PATCH] Remove trailing newlines from help text
 https://sourceware.org/ml/gdb-patches/2019-06/msg00050.html
but some occurrences have been re-introduced since then.

Some help docs had to be rephrased/restructured to respect the above
invariants.

Before this patch, print_doc_line was printing the first line
of a command help documentation, but stopping at the first '.'
or ',' character.

This was giving inconsistent results :
  * The first line of command helps was sometimes '.' terminated,
    sometimes not.
  * The first line of command helps was not always designed to be
    readable/understandable/unambiguous when stopping at the first
    '.' or ',' character.

This e.g. created the following inconsistencies/problems:
< catch exception -- Catch Ada exceptions
< catch handlers -- Catch Ada exceptions
< catch syscall -- Catch system calls by their names
< down-silently -- Same as the `down' command
while the new help is:
> catch exception -- Catch Ada exceptions, when raised.
> catch handlers -- Catch Ada exceptions, when handled.
> catch syscall -- Catch system calls by their names, groups and/or numbers.
> down-silently -- Same as the `down' command, but does not print anything.

Also, the command help doc should not be terminated by a newline
character, but this was not respected by all commands.
The cli-option -OPT framework re-introduced some occurences.
So, the -OPT build help framework was changed to not output newlines at the
end of %OPTIONS% replacement.

This patch changes the help documentations to ensure the 2 invariants
given above.

It implied to slightly rephrase or restructure some help docs.

Based on the above invariants, print_doc_line (called by
'apropos' and 'help' commands to print the first line of a command
help) now outputs the full first line of a command help.

This all results in a lot of small changes in the produced help docs.
There are less code changes than changes in the help docs, as a lot
of docs are produced by some code (e.g. the remote packet usage settings).

gdb/ChangeLog
2019-08-07  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* cli/cli-decode.h (print_doc_line): Add for_value_prefix argument.
	* cli/cli-decode.c (print_doc_line): Likewise.  It now prints
	the full first line, except when FOR_VALUE_PREFIX.  In this case,
	the trailing '.' is not output, and the first character is uppercased.
	(print_help_for_command): Update call to print_doc_line.
	(print_doc_of_command): Likewise.
	* cli/cli-setshow.c (deprecated_show_value_hack): Likewise.
	* cli/cli-option.c (append_indented_doc): Do not append newline.
	(build_help_option): Append newline after first appended_indented_doc
	only if a second call is done.
	(build_help): Append 2 new lines before each option, except the first
	one.
	* compile/compile.c (_initialize_compile): Add new lines after
	%OPTIONS%, when not at the end of the help.
	Change help doc or code
	producing the help doc to respect the invariants.
	* maint-test-options.c (_initialize_maint_test_options): Likewise.
	Also removed the new line after 'Options:', as all other commands
	do not put an empty line between 'Options:' and the first option.
	* printcmd.c (_initialize_printcmd): Likewise.
	* stack.c (_initialize_stack): Likewise.
	* interps.c (interpreter_exec_cmd): Fix "Usage:" line that was
	incorrectly telling COMMAND is optional.
	* ada-lang.c (_initialize_ada_language): Change help doc or code
	producing the help doc to respect the invariants.
	* ada-tasks.c (_initialize_ada_tasks): Likewise.
	* breakpoint.c (_initialize_breakpoint): Likewise.
	* cli/cli-cmds.c (_initialize_cli_cmds): Likewise.
	* cli/cli-logging.c (_initialize_cli_logging): Likewise.
	* cli/cli-setshow.c (_initialize_cli_setshow): Likewise.
	* cli/cli-style.c (cli_style_option::add_setshow_commands,
	_initialize_cli_style): Likewise.
	* corelow.c (core_target_info): Likewise.
	* dwarf-index-cache.c (_initialize_index_cache): Likewise.
	* dwarf2read.c (_initialize_dwarf2_read): Likewise.
	* filesystem.c (_initialize_filesystem): Likewise.
	* frame.c (_initialize_frame): Likewise.
	* gnu-nat.c (add_task_commands): Likewise.
	* infcall.c (_initialize_infcall): Likewise.
	* infcmd.c (_initialize_infcmd): Likewise.
	* interps.c (_initialize_interpreter): Likewise.
	* language.c (_initialize_language): Likewise.
	* linux-fork.c (_initialize_linux_fork): Likewise.
	* maint-test-settings.c (_initialize_maint_test_settings): Likewise.
	* maint.c (_initialize_maint_cmds): Likewise.
	* memattr.c (_initialize_mem): Likewise.
	* printcmd.c (_initialize_printcmd): Likewise.
	* python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq,
	_RegEx): Likewise.
	* ravenscar-thread.c (_initialize_ravenscar): Likewise.
	* record-btrace.c (_initialize_record_btrace): Likewise.
	* record-full.c (_initialize_record_full): Likewise.
	* record.c (_initialize_record): Likewise.
	* regcache-dump.c (_initialize_regcache_dump): Likewise.
	* regcache.c (_initialize_regcache): Likewise.
	* remote.c (add_packet_config_cmd, init_remote_threadtests,
	_initialize_remote): Likewise.
	* ser-tcp.c (_initialize_ser_tcp): Likewise.
	* serial.c (_initialize_serial): Likewise.
	* skip.c (_initialize_step_skip): Likewise.
	* source.c (_initialize_source): Likewise.
	* stack.c (_initialize_stack): Likewise.
	* symfile.c (_initialize_symfile): Likewise.
	* symtab.c (_initialize_symtab): Likewise.
	* target-descriptions.c (_initialize_target_descriptions): Likewise.
	* top.c (init_main): Likewise.
	* tracefile-tfile.c (tfile_target_info): Likewise.
	* tracepoint.c (_initialize_tracepoint): Likewise.
	* tui/tui-win.c (_initialize_tui_win): Likewise.
	* utils.c (add_internal_problem_command): Likewise.
	* valprint.c (value_print_option_defs): Likewise.

gdb/testsuite/ChangeLog
2019-08-07  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* gdb.base/style.exp: Update tests for help doc new invariants.
	* gdb.base/help.exp: Likewise.
2019-08-07 00:04:33 +02:00
Tom Tromey
8abfcabcb4 Use _() in calls to build_help
Currently some code in gdb uses build_help with N_(), like:

  static const std::string compile_print_help
    = gdb::option::build_help (N_("\

I believe this is incorrect.  The N_ macro is used to mark text that
should end up in the message catalog, but which will be translated by
a later call to gettext.

However, in this case, there is no later call to gettext, so (if gdb
had translations), this text would remain untranslated.

Instead, I think using the ordinary _() macro is correct here.
Translators will have to know to preserve "%OPTIONS%" in the text --
but that seems both unavoidable and fine.

Tested by rebuilding as there's not much else to do.

gdb/ChangeLog
2019-08-05  Tom Tromey  <tromey@adacore.com>

	* compile/compile.c (_initialize_compile): Use _(), not N_().
	* thread.c (_initialize_thread): Use _(), not N_().
	* stack.c (_initialize_stack): Use _(), not N_().
	* printcmd.c (_initialize_printcmd): Use _(), not N_().
2019-08-05 07:36:28 -06:00
Philippe Waroquiers
4b5e8d19af Implement 'set print frame-info|frame-arguments presence'.
New settings allow to better control what frame information is printed.

'set print frame-info' allows to override the default frame information
printed when a GDB command prints a frame.
The backtrace command has a new option -frame-info to override
this global setting.

It is now possible to have very short frame information by using the
new 'set print frame-arguments presence' and
'set print frame-info short-location'.

Combined with 'set print address off', a backtrace will only show
the essential information to see the function call chain, e.g.:
  (gdb) set print address off
  (gdb) set print frame-arguments presence
  (gdb) set print frame-info short-location
  (gdb) bt
  #0  break_me ()
  #1  call_me (...)
  #2  main ()
  (gdb)

This is handy in particular for big backtraces with functions having
many arguments.

Python frame filter printing logic has been updated to respect the new
setting in non MI mode.

Also, the default frame information printed was inconsistent when
backtrace was printing the frame information itself, or when the python
frame filtering code was printing the frame information.
This patch changes the default of python frame filtering to have a
consistent behaviour regarding printed frame-information, whatever
the presence/activity/matches of python filters.

2019-07-29  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* frame.h (enum print_what): New value 'SHORT_LOCATION', update
	comments.
	(print_frame_info_auto, print_frame_info_source_line,
	print_frame_info_location, print_frame_info_source_and_location,
	print_frame_info_location_and_address, print_frame_info_short_location):
	New declarations.
	(struct frame_print_options): New member print_frame_info.
	* extension.h (enum ext_lang_frame_args): New value CLI_PRESENCE.
	* stack.h (get_user_print_what_frame_info): New declaration.
	(frame_show_address): New declaration.
	* stack.c (print_frame_arguments_choices): New value 'presence'.
	(print_frame_info_auto, print_frame_info_source_line,
	print_frame_info_location, print_frame_info_source_and_location,
	print_frame_info_location_and_address, print_frame_info_short_location,
	print_frame_info_choices, print_frame_info_print_what): New definitions.
	(print_frame_args): Only print dots for args if print frame-arguments
	is 'presence'.
	(frame_print_option_defs): New element for "frame-info".
	(get_user_print_what_frame_info): New function.
	(frame_show_address): Make non static.  Move comment to stack.h.
	(print_frame_info_to_print_what): New function.
	(print_frame_info): Update comment.  Use fp_opts.print_frame_info
	to decide what to print.
	(backtrace_command_1): Handle the new print_frame_arguments_presence
	value.
	(_initialize_stack): Call add_setshow_enum_cmd for frame-info.
	* python/py-framefilter.c (py_print_args): Handle CLI_PRESENCE.
	(py_print_frame): In non-mi mode, use LOCATION as default for
	print_what, similarly to frame information printed directly by
	backtrace command. Handle frame-info user option in non MI mode.
2019-07-29 21:42:29 +02:00
Kevin Buettner
567238c956 Prefer symtab symbol over minsym for function names in non-contiguous blocks
The discussion on gdb-patches which led to this patch may be found
here:

https://www.sourceware.org/ml/gdb-patches/2019-05/msg00018.html

Here's a brief synopsis/analysis:

Eli Zaretskii, while debugging a Windows emacs executable, found
that functions comprised of more than one (non-contiguous)
address range were not being displayed correctly in a backtrace.  This
is the example that Eli provided:

  (gdb) bt
  #0  0x76a63227 in KERNELBASE!DebugBreak ()
     from C:\Windows\syswow64\KernelBase.dll
  #1  0x012e7b89 in emacs_abort () at w32fns.c:10768
  #2  0x012e1f3b in print_vectorlike.cold () at print.c:1824
  #3  0x011d2dec in print_object (obj=<optimized out>, printcharfun=XIL(0),
      escapeflag=true) at print.c:2150

The function print_vectorlike consists of two address ranges, one of
which contains "cold" code which is expected to not execute very often.
There is a minimal symbol, print_vectorlike.cold.65, which is the address
of the "cold" range.

GDB is prefering this minsym over the the name provided by the
DWARF info due to some really old code in GDB which handles
"certain pathological cases".  This comment reads as follows:

      /* In certain pathological cases, the symtabs give the wrong
	 function (when we are in the first function in a file which
	 is compiled without debugging symbols, the previous function
	 is compiled with debugging symbols, and the "foo.o" symbol
	 that is supposed to tell us where the file with debugging
	 symbols ends has been truncated by ar because it is longer
	 than 15 characters).  This also occurs if the user uses asm()
	 to create a function but not stabs for it (in a file compiled
	 with -g).

	 So look in the minimal symbol tables as well, and if it comes
	 up with a larger address for the function use that instead.
	 I don't think this can ever cause any problems; there
	 shouldn't be any minimal symbols in the middle of a function;
	 if this is ever changed many parts of GDB will need to be
	 changed (and we'll create a find_pc_minimal_function or some
	 such).  */

In an earlier version of this patch, I had left the code for the
pathological case intact, but those who reviwed that patch recommended
removing it.  So that's what I've done - I've removed it.

gdb/ChangeLog:

	* stack.c (find_frame_funname): Remove code which preferred
	minsym over symtab sym in "certain pathological cases".
2019-07-27 13:26:46 -07:00
Tom Tromey
381befeedf Rename field_int to field_signed
This renames ui_out::field_int to field_signed, and field_fmt_int to
field_fmt_signed; and changes the type of the "value" parameter from
int to LONGEST.

Tested by the buildbot.

gdb/ChangeLog
2019-07-17  Tom Tromey  <tromey@adacore.com>

	* ui-out.h (class ui_out) <field_signed, field_fmt_signed,
	do_field_signed>: Rename.  Change type of "value".
	* ui-out.c (ui_out::field_signed): Rename from field_int.
	Change type of "value".
	(ui_out::field_fmt_signed): Rename from field_fmt_int.  Change
	type of "value".
	* tui/tui-out.h (class tui_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* tui/tui-out.c (tui_ui_out::do_field_signed): Rename from
	do_field_int.  Change type of "value".
	* tracepoint.c (trace_status_mi, tfind_1)
	(print_one_static_tracepoint_marker): Update.
	* thread.c (print_thread_info_1, print_selected_thread_frame):
	Update.
	* stack.c (print_frame, print_frame_info): Update.
	* spu-tdep.c (info_spu_signal_command, info_spu_dma_cmdlist):
	Update.
	* source.c (print_source_lines_base): Update.
	* skip.c (info_skip_command): Update.
	* record-btrace.c (btrace_ui_out_decode_error)
	(btrace_call_history_src_line): Update.
	* python/py-framefilter.c (py_print_single_arg, py_print_frame):
	Update.
	* progspace.c (print_program_space): Update.
	* mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines): Update.
	* mi/mi-out.h (class mi_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* mi/mi-out.c (mi_ui_out::do_table_begin)
	(mi_ui_out::do_table_header): Update.
	(mi_ui_out::do_field_signed): Rename from do_field_int.  Change
	type of "value".
	* mi/mi-main.c (mi_cmd_thread_list_ids, print_one_inferior)
	(mi_cmd_data_list_changed_registers, output_register)
	(mi_cmd_data_read_memory, mi_load_progress)
	(mi_cmd_trace_frame_collected): Update.
	* mi/mi-interp.c (mi_on_normal_stop_1, mi_output_solib_attribs):
	Update.
	* mi/mi-cmd-var.c (print_varobj, mi_cmd_var_create)
	(mi_cmd_var_delete, mi_cmd_var_info_num_children)
	(mi_cmd_var_list_children, varobj_update_one): Update.
	* mi/mi-cmd-stack.c (mi_cmd_stack_info_depth)
	(mi_cmd_stack_list_args, list_arg_or_local): Update.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_file): Update.
	* inferior.c (print_inferior): Update.
	* gdb_bfd.c (print_one_bfd): Update.
	* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
	Update.
	* darwin-nat-info.c (darwin_debug_regions_recurse): Update.
	* cli-out.h (class cli_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* cli-out.c (cli_ui_out::do_field_signed): Rename from
	do_field_int.  Change type of "value".
	* breakpoint.c (watchpoint_check, print_breakpoint_location)
	(print_one_breakpoint_location, print_it_catch_fork)
	(print_one_catch_fork, print_it_catch_vfork)
	(print_one_catch_vfork, print_it_catch_solib)
	(print_it_catch_exec, print_it_ranged_breakpoint)
	(print_mention_watchpoint, print_mention_masked_watchpoint)
	(bkpt_print_it, update_static_tracepoint): Update.
	* break-catch-throw.c (print_it_exception_catchpoint): Update.
	* break-catch-syscall.c (print_it_catch_syscall): Update.
	* ada-tasks.c (print_ada_task_info): Update.
	* ada-lang.c (print_it_exception, print_mention_exception):
	Update.
2019-07-17 10:34:05 -06:00
Andrew Burgess
60cfcb20ce gdb: Add command completers for some info commands
Add command completion for info variables, functions, args, and
locals.  This completer only completes the command line options as
these commands all take a regexp which GDB can't really offer
completions for.

gdb/ChangeLog:

	* cli/cli-utils.c (info_print_command_completer): New function.
	* cli/cli-utils.h: Add 'completer.h' include, and forward
	declaration for 'struct cmd_list_element'.
	(info_print_command_completer): Declare.
	* stack.c (_initialize_stack): Add completer for 'info locals' and
	'info args'.
	* symtab.c (_initialize_symtab): Add completer for 'info
	variables' and 'info functions'.
	* NEWS: Mention completion for additional info commands.
2019-07-11 20:19:24 +01:00
Andrew Burgess
b16507e091 gdb: Make use of gdb::option framework for some info commands
Update the 'info variables', 'info functions', 'info locals', and
'info args' commands to make use of the gdb::options framework.

There should be no user visible changes after this commit as I have
left the help text generation using the existing mechanism, which
already tries to customise the text for each of the commands.

gdb/ChangeLog:

	* cli/cli-utils.c (extract_info_print_args): Delete.
	(extract_arg_maybe_quoted): Delete.
	(info_print_options_defs): New variable.
	(make_info_print_options_def_group): New function.
	(extract_info_print_options): Define new function.
	* cli/cli-utils.h (extract_info_print_args): Delete.
	(struct info_print_options): New structure.
	(extract_info_print_options): Declare new function.
	* stack.c (info_locals_command): Update to use new
	extract_info_print_options, also add a header comment.
	(info_args_command): Likewise.
	* symtab.c (info_variables_command): Likewise.
	(info_functions_command): Likewise.
2019-07-11 20:18:17 +01:00
Tom Tromey
268a13a5a3 Rename common to gdbsupport
This is the next patch in the ongoing series to move gdbsever to the
top level.

This patch just renames the "common" directory.  The idea is to do
this move in two parts: first rename the directory (this patch), then
move the directory to the top.  This approach makes the patches a bit
more tractable.

I chose the name "gdbsupport" for the directory.  However, as this
patch was largely written by sed, we could pick a new name without too
much difficulty.

Tested by the buildbot.

gdb/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* contrib/ari/gdb_ari.sh: Change common to gdbsupport.
	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* gdbsupport: Rename from common.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES)
	(HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to
	gdbsupport.
	* aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c,
	amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c,
	amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c,
	amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c,
	amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c,
	arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c,
	arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c,
	arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c,
	arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c,
	auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h,
	btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c,
	charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c,
	cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c,
	coff-pe-read.c, command.h, compile/compile-c-support.c,
	compile/compile-c.h, compile/compile-cplus-symbols.c,
	compile/compile-cplus-types.c, compile/compile-cplus.h,
	compile/compile-loc2c.c, compile/compile.c, completer.c,
	completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c,
	cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c,
	darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c,
	disasm.h, dtrace-probe.c, dwarf-index-cache.c,
	dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c,
	dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c,
	event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c,
	features/aarch64-core.c, features/aarch64-fpu.c,
	features/aarch64-pauth.c, features/aarch64-sve.c,
	features/i386/32bit-avx.c, features/i386/32bit-avx512.c,
	features/i386/32bit-core.c, features/i386/32bit-linux.c,
	features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c,
	features/i386/32bit-segments.c, features/i386/32bit-sse.c,
	features/i386/64bit-avx.c, features/i386/64bit-avx512.c,
	features/i386/64bit-core.c, features/i386/64bit-linux.c,
	features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c,
	features/i386/64bit-segments.c, features/i386/64bit-sse.c,
	features/i386/x32-core.c, features/riscv/32bit-cpu.c,
	features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c,
	features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c,
	features/riscv/64bit-fpu.c, features/tic6x-c6xp.c,
	features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h,
	findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h,
	gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c,
	gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c,
	go32-nat.c, guile/guile.c, guile/scm-ports.c,
	guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c,
	i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c,
	i386-linux-tdep.c, i386-tdep.c, i387-tdep.c,
	ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c,
	inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h,
	inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h,
	inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c,
	linux-tdep.c, linux-thread-db.c, location.c, machoread.c,
	macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h,
	mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c,
	mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h,
	minsyms.c, mips-linux-tdep.c, namespace.h,
	nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h,
	nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c,
	nat/amd64-linux-siginfo.c, nat/fork-inferior.c,
	nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c,
	nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c,
	nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h,
	nat/linux-waitpid.c, nat/mips-linux-watch.c,
	nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c,
	nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c,
	nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h,
	obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c,
	parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c,
	procfs.c, producer.c, progspace.h, psymtab.h,
	python/py-framefilter.c, python/py-inferior.c, python/py-ref.h,
	python/py-type.c, python/python.c, record-btrace.c, record-full.c,
	record.c, record.h, regcache-dump.c, regcache.c, regcache.h,
	remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c,
	riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c,
	selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c,
	ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c,
	source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c,
	stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h,
	symtab.c, symtab.h, target-descriptions.c, target-descriptions.h,
	target-memory.c, target.c, target.h, target/waitstatus.c,
	target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c,
	top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c,
	tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h,
	unittests/array-view-selftests.c,
	unittests/child-path-selftests.c, unittests/cli-utils-selftests.c,
	unittests/common-utils-selftests.c,
	unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c,
	unittests/format_pieces-selftests.c,
	unittests/function-view-selftests.c,
	unittests/lookup_name_info-selftests.c,
	unittests/memory-map-selftests.c, unittests/memrange-selftests.c,
	unittests/mkdir-recursive-selftests.c,
	unittests/observable-selftests.c,
	unittests/offset-type-selftests.c, unittests/optional-selftests.c,
	unittests/parse-connection-spec-selftests.c,
	unittests/ptid-selftests.c, unittests/rsp-low-selftests.c,
	unittests/scoped_fd-selftests.c,
	unittests/scoped_mmap-selftests.c,
	unittests/scoped_restore-selftests.c,
	unittests/string_view-selftests.c, unittests/style-selftests.c,
	unittests/tracepoint-selftests.c, unittests/unpack-selftests.c,
	unittests/utils-selftests.c, unittests/xml-utils-selftests.c,
	utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c,
	value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c,
	xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c,
	xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport.

gdb/gdbserver/ChangeLog
2019-07-09  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* configure.ac: Change common to gdbsupport.
	* acinclude.m4: Change common to gdbsupport.
	* Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS)
	(version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change
	common to gdbsupport.
	* ax.c, event-loop.c, fork-child.c, gdb_proc_service.h,
	gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c,
	inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c,
	linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c,
	linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c,
	linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h,
	nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c,
	server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h,
	thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change
	common to gdbsupport.
2019-07-09 07:45:38 -06:00
Andrew Burgess
ec8e2b6d30 gdb: Don't allow annotations to influence what else GDB prints
The annotations should be additional information printed by GDB to be
consumed by users (GUIs), but GDB shouldn't reduce what it prints
based on whether annotations are on or not.  However, this is what
happens for annotate_source_line.

This commit makes annotate_source_line a void function that simply
outputs the annotation information, GDB will then print the contents
of the source line to the terminal in the normal way.

Some tests needed to be updated after this commit.

gdb/ChangeLog:

	* annotate.c (annotate_source_line): Change return type to void,
	update implementation to match.
	* annotate.h (annotate_source_line): Change return type to void,
	update header comment.
	* stack.c (print_frame_info): Don't change what frame information
	is printed based on whether annotations are on or not.

gdb/testsuite/ChangeLog:

	* gdb.base/annota1.exp: Update expected results.
	* gdb.cp/annota2.exp: Likewise.
	* gdb.cp/annota3.exp: Likewise.
2019-06-15 21:39:06 +01:00
Andrew Burgess
0d3abd8cc9 gdb: Remove an update of current_source_line and current_source_symtab
While reviewing some of the annotation code I noticed that
identify_source_line (in source.c) sets current_source_line,
current_source_symtab, and also calls clear_lines_listed_range.  This
seems a little strange, identify_source_line is really a wrapper
around annotate_source, and is only called when annotation_level is
greater than 0 (so annotations are turned on).

It seems weird (to me) that when annotations are on we update GDB's
idea of the "current" line/symtab, but when they are off we don't,
given that annotations are really about communicating GDB's state to a
user (GUI) and surely shouldn't be changing GDB's behaviour.

This commit removes from identify_source_line all of the setting of
current line/symtab and the call to clear_lines_listed_range, after
doing this GDB still passes all tests, so I don't believe these lines
were actually required.

With this code removed identify_source_line is only a wrapper around
annotate_source, so I moved identify_source_line to annotate.c and
renamed it to annotate_source_line.

gdb/ChangeLog:

	* annotate.c: Add 'source.h' and 'objfiles.h' includes.
	(annotate_source): Make static.
	(annotate_source_line): Moved from source.c and renamed from
	identify_source_line.  Update the return type.
	* annotate.h (annotate_source): Delete declaration.
	(annotate_source_line): Declaration moved from source.h, and
	renamed from identify_source_line.  Return type updated.
	* source.c (identify_source_line): Moved to annotate.c and renamed
	to annotate_source_line.
	(info_line_command): Remove check of annotation_level.
	* source.h (identify_source_line): Move declaration to annotate.h
	and rename to annotate_source_line.
	* stack.c: Add 'annotate.h' include.
	(print_frame_info): Remove check of annotation_level before
	calling annotate_source_line.
2019-06-15 21:39:05 +01:00
Pedro Alves
5d7071341d Make "frame apply" support -OPT options
This adds support for '-'-style options to the "frame apply" family of
commands -- "frame apply COUNT", "frame apply level", "frame apply
all", "faas" and "tfaas".

The -q/-c/-s flags were already supported, -past-main/-past-entry is
new:

~~~
(gdb) help frame apply all
Apply a command to all frames.

Usage: frame apply all [OPTION]... COMMAND
Prints the frame location information followed by COMMAND output.

By default, an error raised during the execution of COMMAND
aborts "frame apply".

Options:
  -q
    Disables printing the frame location information.

  -c
    Print any error raised by COMMAND and continue.

  -s
    Silently ignore any errors or empty output produced by COMMAND.

  -past-main [on|off]
    Set whether backtraces should continue past "main".
    Normally the caller of "main" is not of interest, so GDB will terminate
    the backtrace at "main".  Set this if you need to see the rest
    of the stack trace.

  -past-entry [on|off]
    Set whether backtraces should continue past the entry point of a program.
    Normally there are no callers beyond the entry point of a program, so GDB
    will terminate the backtrace there.  Set this if you need to see
    the rest of the stack trace.
~~~

TAB completion of options is now supported.  Also, TAB completion of
COMMAND in "frame apply all COMMAND" does the right thing now, making
use of complete_command, added by the previous patch.  E.g.:

 (gdb) thread apply all -ascending frame apply all -past-main print -[TAB]
 -address         -elements        -pretty          -symbol
 -array           -null-stop       -repeats         -union
 -array-indexes   -object          -static-members  -vtbl
 (gdb) thread apply all -ascending frame apply all -past-main print glo[TAB]
 global1         global2

The change to tfaas_command is necessary because otherwise you get
this:

 (gdb) tfaas --
 Unrecognized option at: frame apply all -s --

That's because the above is equivalent to:

 (gdb) thread apply all -s frame apply all -s --

and the "--" instructs "thread apply" to consider everything up to
"--" as its command options.  And from that view, "frame" is an
invalid option.

The change makes tfaas be equivalent to:

 (gdb) thread apply all -s -- frame apply all -s --

gdb/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* cli/cli-utils.c (parse_flags_qcs): Use validate_flags_qcs.
	(validate_flags_qcs): New.
	* cli/cli-utils.h (struct qcs_flags): Change field types to int.
	(validate_flags_qcs): Declare.
	* stack.c (qcs_flag_option_def, fr_qcs_flags_option_defs): New.
	(make_frame_apply_options_def_group): New.
	(frame_apply_command_count): Process options with
	gdb::option::process_options.
	(frame_apply_completer): New.
	(frame_apply_level_completer, frame_apply_all_completer)
	(frame_apply_completer): New.
	(_initialize_stack): Update help of "frame apply", "frame apply
	level", "frame apply all" and "faas" to mention supported options
	and install command completers.
	* stack.h (frame_apply_all_completer): Declare.
	* thread.c: Include "stack.h".
	(tfaas_command): Add "--".
	(_initialize_thread): Update help "tfaas" to mention supported
	options and install command completer.

gdb/testsuite/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* gdb.base/options.exp (test-frame-apply): New.
	(top level): Test print commands with different "frame apply"
	prefixes.
2019-06-13 00:22:07 +01:00
Pedro Alves
90a1ef8762 "backtrace full/no-filters/hide" completer
"backtrace"'s completer now completes on command options:

 (gdb) bt -[TAB]
 -entry-values         -full                 -no-filters           -past-main
 -frame-arguments      -hide                 -past-entry           -raw-frame-arguments

But it doesn't know how to complete on qualifiers:

 (gdb) bt fu[TAB]
 funlockfile       futimens          futimes.c
 funlockfile.c     futimens.c        futimesat
 futex-internal.h  futimes           futimesat.c

This commit fixes that:

 (gdb) bt fu[TAB]ll
 (gdb) bt n[TAB]o-filters
 (gdb) bt h[TAB]ide

I considered teaching the gdb::option framework to handle non-'-'
options, but decided it wasn't worth it for this special case, and I'd
rather not make it easy to add new qualifier-like options.

gdb/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* stack.c (parse_backtrace_qualifiers): New.
	(backtrace_command): Use it.
	(backtrace_command_completer): Complete on qualifiers.

gdb/testsuite/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* gdb.base/options.exp (test-backtrace): Test completing qualifiers.
2019-06-13 00:20:08 +01:00
Pedro Alves
d4c16835ca Make "backtrace" support -OPT options
This adds support for comand options to the "backtrace" command.  We'll get:

  (gdb) bt -
  -entry-values         -hide                 -past-main
  -frame-arguments      -no-filters           -raw-frame-arguments
  -full                 -past-entry

~~~~
(gdb) help backtrace
Print backtrace of all stack frames, or innermost COUNT frames.
Usage: backtrace [OPTION]... [QUALIFIER]... [COUNT | -COUNT]

Options:
  -entry-values no|only|preferred|if-needed|both|compact|default
    Set printing of function arguments at function entry
    GDB can sometimes determine the values of function arguments at entry,
    in addition to their current values.  This option tells GDB whether
    to print the current value, the value at entry (marked as val@entry),
    or both.  Note that one or both of these values may be <optimized out>.

  -frame-arguments all|scalars|none
    Set printing of non-scalar frame arguments

  -raw-frame-arguments [on|off]
    Set whether to print frame arguments in raw form.
    If set, frame arguments are printed in raw form, bypassing any
    pretty-printers for that value.

  -past-main [on|off]
    Set whether backtraces should continue past "main".
    Normally the caller of "main" is not of interest, so GDB will terminate
    the backtrace at "main".  Set this if you need to see the rest
    of the stack trace.

  -past-entry [on|off]
    Set whether backtraces should continue past the entry point of a program.
    Normally there are no callers beyond the entry point of a program, so GDB
    will terminate the backtrace there.  Set this if you need to see
    the rest of the stack trace.

  -full
    Print values of local variables.

  -no-filters
    Prohibit frame filters from executing on a backtrace.

  -hide
    Causes Python frame filter elided frames to not be printed.

For backward compatibility, the following qualifiers are supported:

   full       - same as -full option.
   no-filters - same as -no-filters option.
   hide       - same as -hide.

With a negative COUNT, print outermost -COUNT frames.
~~~~

Implementation wise, this:

- Moves relevant options/settings globals to structures.
- Tweaks a number of functions to pass down references to such structures.
- Adds option_def structures describing the options/settings.
- Makes backtrace_command parse the options, with gdb::option::process_options.
- Tweaks "backtrace"'s help to describe the new options.
- Adds testcases.

Note that backtrace is a PROCESS_OPTIONS_UNKNOWN_IS_OPERAND command,
because of the "-COUNT" argument.

The COUNT/-COUNT argument is currently parsed as an expression.  I
considered whether it would be prudent here to require "--", but
concluded that the risk of causing a significant breakage here is much
lower compared to "print", since printing the expression is not the
whole point of the "backtrace" command.  Seems OK to me to require
typing "backtrace -past-main -- -p" if the user truly wants to refer
to the negative of a backtrace count stored in an inferior variable
called "p".

gdb/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* frame.c: Include "cli/cli-option.h.
	(user_set_backtrace_options): New.
	(backtrace_past_main, backtrace_past_entry, backtrace_limit):
	Delete.
	(get_prev_frame): Adjust.
	(boolean_option_def, uinteger_option_def)
	(set_backtrace_option_defs): New.
	(_initialize_frame): Adjust and use
	gdb::option::add_setshow_cmds_for_options to install "set
	backtrace past-main" and "set backtrace past-entry".
	* frame.h: Include "cli/cli-option.h".
	(struct frame_print_options): Forward declare.
	(print_frame_arguments_all, print_frame_arguments_scalars)
	(print_frame_arguments_none): Declare.
	(print_entry_values): Delete declaration.
	(struct frame_print_options, user_frame_print_options): New.
	(struct set_backtrace_options): New.
	(set_backtrace_option_defs, user_set_backtrace_options): Declare.
	* mi/mi-cmd-stack.c (mi_cmd_stack_list_frames)
	(mi_cmd_stack_list_locals, mi_cmd_stack_list_args)
	(mi_cmd_stack_list_variables): Pass down USER_FRAME_PRINT_OPTIONS.
	(list_args_or_locals): Add frame_print_options parameter.
	(mi_cmd_stack_info_frame): Pass down USER_FRAME_PRINT_OPTIONS.
	* python/py-framefilter.c (enumerate_args): Pass down
	USER_FRAME_PRINT_OPTIONS.
	* stack.c: Include "cli/cli-option.h".
	(print_frame_arguments_all, print_frame_arguments_scalars)
	(print_frame_arguments_none): Declare.
	(print_raw_frame_arguments, print_entry_values): Delete.
	(user_frame_print_options): New.
	(boolean_option_def, enum_option_def, frame_print_option_defs):
	New.
	(struct backtrace_cmd_options): New.
	(bt_flag_option_def): New.
	(backtrace_command_option_defs): New.
	(print_stack_frame): Pass down USER_FRAME_PRINT_OPTIONS.
	(print_frame_arg, read_frame_arg, print_frame_args)
	(print_frame_info, print_frame): Add frame_print_options parameter
	and use it.
	(info_frame_command_core): Pass down USER_FRAME_PRINT_OPTIONS.
	(backtrace_command_1): Add frame_print_options and
	backtrace_cmd_options parameters and use them.
	(make_backtrace_options_def_group): New.
	(backtrace_command): Process command options with
	gdb::option::process_options.
	(backtrace_command_completer): New.
	(_initialize_stack): Extend "backtrace"'s help to mention
	supported options.  Install completer for "backtrace".
	Install some settings commands with add_setshow_cmds_for_options.

gdb/testsuite/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* gdb.base/options.exp (test-backtrace): New.
	(top level): Call it.
2019-06-13 00:19:14 +01:00
Pedro Alves
2daf894ed0 "set print raw frame-arguments" -> "set print raw-frame-arguments"
A following patch will introduce options for the "backtrace" command,
based on some "set print" and "set backtrace" settings.  There's one
setting in particular that is a bit annoying if we want to describe
the backtrace options and the settings commands using the same data
structures:

  "set print raw frame-arguments"

The problem is that space between "raw" and "frame-arguments".

Calling the option

  "bt -raw frame-arguments"

would be odd.  So I'm calling the option

  "bt -raw-frame-arguments"

instead.

And for consistency, this patch renames the set/show commands to:

 "set print raw-frame-arguments"
 "show print raw-frame-arguments"

I.e., dash instead of space.  The old commands are left in place, but
marked deprecated.

We need to adjust a couple testcases, because the relevant tests use
gdb_test_no_output and the old commands are no longer silent:

  (gdb) set print raw frame-arguments on
  Warning: command 'set print raw frame-arguments' is deprecated.
  Use 'set print raw-frame-arguments'.

gdb/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* NEWS (Changed commands): Mention set/show print raw-frame-arguments,
	and that "set/show print raw frame-arguments" are now deprecated.

	* cli/cli-decode.c (add_setshow_boolean_cmd): Now returns the
	command.
	* command.h (add_setshow_boolean_cmd): Return cmd_list_element *.
	* stack.c (_initialize_stack): Install "set/show print
	raw-frame-arguments", and deprecate "set/show print raw
	frame-arguments".
	* valprint.c (_initialize_valprint): Deprecate "set/show print
	raw".

gdb/doc/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Print Settings): Document "set/show print
	raw-frame-arguments" instead of "set/show print raw
	frame-arguments".

gdb/testsuite/ChangeLog:
2019-06-13  Pedro Alves  <palves@redhat.com>

	* gdb.guile/scm-frame-args.exp: Use "set print
	raw-frame-arguments" instead of "set print raw frame-arguments".
	* gdb.python/py-frame-args.exp: Likewise.
2019-06-13 00:18:41 +01:00
Tom Tromey
e2eb806a17 Use "false" in select_frame_for_mi
This changes select_frame_for_mi to use "false" rather than "FALSE".

gdb/ChangeLog
2019-05-04  Tom Tromey  <tom@tromey.com>

	* stack.c (select_frame_for_mi): Use "false", not "FALSE".
2019-05-04 14:13:27 -06:00
Philippe Waroquiers
8a522c6cab Have 'thread|frame apply' style their output.
'thread|frame apply CMD' launches CMD so that CMD output goes to a string_file.
This patch ensures that string_file for such CMD output contains
style escape sequences that 'thread|frame apply' will later on
output on the real terminal, so as to have CMD output properly styled.

The idea is to have the class ui_file having overridable methods
to indicate that the output to this ui_file should be done using
'terminal' behaviour such as styling.
Then these methods are overriden in string_file so that a specially
constructed string_file will get output with style escape sequences.

After this patch, the output of CMD by thread|frame apply CMD is styled
similarly as when CMD is launched directly.
Note that string_file (term_out true) could also support wrapping,
but this is not done (yet?).

Tested on debian/amd64.

gdb/ChangeLog
2019-04-27  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	Support style in 'frame|thread apply'

	* gdbcmd.h (execute_command_to_string): New term_out parameter.
	* record.c (record_start, record_stop): Update callers of
	execute_command_to_string with false.
	* ui-file.h (class ui_file): New term_out and can_emit_style_escape
	methods.
	(class string_file): New constructor with term_out parameter.
	Override methods term_out and can_emit_style_escape.  New member
	term_out.
	(class stdio_file): Override can_emit_style_escape.
	(class tee_file): Override term_out and can_emit_style_escape.
	* utils.h (can_emit_style_escape): Remove.
	* utils.c (can_emit_style_escape): Likewise.
	Update all callers of can_emit_style_escape (SOMESTREAM) to
	SOMESTREAM->can_emit_style_escape.
	* source-cache.c (source_cache::get_source_lines): Likewise.
	* stack.c (frame_apply_command_count): Call execute_command_to_string
	passing the term_out characteristic of the current gdb_stdout.
	* thread.c (thr_try_catch_cmd): Likewise.
	* top.c (execute_command_to_string): pass term_out parameter
	to construct the string_file for the command output.
	* ui-file.c (term_cli_styling): New function (most code moved
	from utils.c can_emit_style_escape).
	(string_file::string_file, string_file::can_emit_style_escape,
	stdio_file::can_emit_style_escape, tee_file::term_out,
	tee_file::can_emit_style_escape): New functions.
2019-04-27 14:25:28 +02:00
Tom Tromey
eedc3f4f0a Replace throw_exception with throw in some cases
This replaces throw_exception with "throw;" when possible.  This was
written by script.  The rule that is followed is that uses of the
form:

   catch (... &name)
     {
       ...
       throw_exception (name);
     }

... can be rewritten.  This should always be safe, because exceptions
are caught by const reference, and therefore can't be modified in the
body of the catch.

gdb/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* valops.c (value_rtti_indirect_type): Replace throw_exception
	with throw.
	* tracefile-tfile.c (tfile_target_open): Replace throw_exception
	with throw.
	* thread.c (thr_try_catch_cmd): Replace throw_exception with
	throw.
	* target.c (target_translate_tls_address): Replace throw_exception
	with throw.
	* stack.c (frame_apply_command_count): Replace throw_exception
	with throw.
	* solib-spu.c (append_ocl_sos): Replace throw_exception with
	throw.
	* s390-tdep.c (s390_frame_unwind_cache): Replace throw_exception
	with throw.
	* rs6000-tdep.c (rs6000_frame_cache)
	(rs6000_epilogue_frame_cache): Replace throw_exception with throw.
	* remote.c: Replace throw_exception with throw.
	* record-full.c (record_full_message, record_full_wait_1)
	(record_full_restore): Replace throw_exception with throw.
	* record-btrace.c:
	(get_thread_current_frame_id, record_btrace_start_replaying)
	(cmd_record_btrace_bts_start, cmd_record_btrace_pt_start)
	(cmd_record_btrace_start): Replace throw_exception with throw.
	* parse.c (parse_exp_in_context_1): Replace throw_exception with
	throw.
	* linux-nat.c (detach_one_lwp, linux_resume_one_lwp)
	(resume_stopped_resumed_lwps): Replace throw_exception with throw.
	* linespec.c:
	(find_linespec_symbols): Replace throw_exception with throw.
	* infrun.c (displaced_step_prepare, resume): Replace
	throw_exception with throw.
	* infcmd.c (post_create_inferior): Replace throw_exception with
	throw.
	* inf-loop.c (inferior_event_handler): Replace throw_exception
	with throw.
	* i386-tdep.c (i386_frame_cache, i386_epilogue_frame_cache)
	(i386_sigtramp_frame_cache): Replace throw_exception with throw.
	* frame.c (frame_unwind_pc, get_prev_frame_if_no_cycle)
	(get_prev_frame_always, get_frame_pc_if_available)
	(get_frame_address_in_block_if_available, get_frame_language):
	Replace throw_exception with throw.
	* frame-unwind.c (frame_unwind_try_unwinder): Replace
	throw_exception with throw.
	* eval.c (fetch_subexp_value, evaluate_var_value)
	(evaluate_funcall, evaluate_subexp_standard): Replace
	throw_exception with throw.
	* dwarf2loc.c (call_site_find_chain)
	(dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval):
	Replace throw_exception with throw.
	* dwarf2-frame.c (dwarf2_frame_cache): Replace throw_exception
	with throw.
	* darwin-nat.c (darwin_attach_pid): Replace throw_exception with
	throw.
	* cp-abi.c (baseclass_offset): Replace throw_exception with throw.
	* completer.c (complete_line_internal): Replace throw_exception
	with throw.
	* compile/compile-object-run.c (compile_object_run): Replace
	throw_exception with throw.
	* cli/cli-script.c (process_next_line): Replace throw_exception
	with throw.
	* btrace.c (btrace_compute_ftrace_pt, btrace_compute_ftrace)
	(btrace_enable, btrace_maint_update_pt_packets): Replace
	throw_exception with throw.
	* breakpoint.c (create_breakpoint, save_breakpoints): Replace
	throw_exception with throw.
	* break-catch-throw.c (re_set_exception_catchpoint): Replace
	throw_exception with throw.
	* amd64-tdep.c (amd64_frame_cache, amd64_sigtramp_frame_cache)
	(amd64_epilogue_frame_cache): Replace throw_exception with throw.
	* aarch64-tdep.c (aarch64_make_prologue_cache)
	(aarch64_make_stub_cache): Replace throw_exception with throw.

gdb/gdbserver/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* linux-low.c (linux_detach_one_lwp): Replace throw_exception with
	throw.
	(linux_resume_one_lwp): Likewise.
2019-04-08 09:05:41 -06:00
Tom Tromey
230d2906b9 Rename gdb exception types
This renames the gdb exception types.  The old types were only needed
due to the macros in common-exception.h that are now gone.

The intermediate layer of gdb_exception_RETURN_MASK_ALL did not seem
needed, so this patch removes it entirely.

gdb/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* common/common-exceptions.h (gdb_exception_RETURN_MASK_ALL):
	Remove.
	(gdb_exception_error): Rename from
	gdb_exception_RETURN_MASK_ERROR.
	(gdb_exception_quit): Rename from gdb_exception_RETURN_MASK_QUIT.
	(gdb_quit_bad_alloc): Update.
	* aarch64-tdep.c: Update.
	* ada-lang.c: Update.
	* ada-typeprint.c: Update.
	* ada-valprint.c: Update.
	* amd64-tdep.c: Update.
	* arch-utils.c: Update.
	* break-catch-throw.c: Update.
	* breakpoint.c: Update.
	* btrace.c: Update.
	* c-varobj.c: Update.
	* cli/cli-cmds.c: Update.
	* cli/cli-interp.c: Update.
	* cli/cli-script.c: Update.
	* common/common-exceptions.c: Update.
	* common/new-op.c: Update.
	* common/selftest.c: Update.
	* compile/compile-c-symbols.c: Update.
	* compile/compile-cplus-symbols.c: Update.
	* compile/compile-object-load.c: Update.
	* compile/compile-object-run.c: Update.
	* completer.c: Update.
	* corelow.c: Update.
	* cp-abi.c: Update.
	* cp-support.c: Update.
	* cp-valprint.c: Update.
	* darwin-nat.c: Update.
	* disasm-selftests.c: Update.
	* dtrace-probe.c: Update.
	* dwarf-index-cache.c: Update.
	* dwarf-index-write.c: Update.
	* dwarf2-frame-tailcall.c: Update.
	* dwarf2-frame.c: Update.
	* dwarf2loc.c: Update.
	* dwarf2read.c: Update.
	* eval.c: Update.
	* event-loop.c: Update.
	* event-top.c: Update.
	* exec.c: Update.
	* f-valprint.c: Update.
	* fbsd-tdep.c: Update.
	* frame-unwind.c: Update.
	* frame.c: Update.
	* gdbtypes.c: Update.
	* gnu-v3-abi.c: Update.
	* guile/guile-internal.h: Update.
	* guile/scm-block.c: Update.
	* guile/scm-breakpoint.c: Update.
	* guile/scm-cmd.c: Update.
	* guile/scm-disasm.c: Update.
	* guile/scm-frame.c: Update.
	* guile/scm-lazy-string.c: Update.
	* guile/scm-math.c: Update.
	* guile/scm-param.c: Update.
	* guile/scm-ports.c: Update.
	* guile/scm-pretty-print.c: Update.
	* guile/scm-symbol.c: Update.
	* guile/scm-symtab.c: Update.
	* guile/scm-type.c: Update.
	* guile/scm-value.c: Update.
	* i386-linux-tdep.c: Update.
	* i386-tdep.c: Update.
	* inf-loop.c: Update.
	* infcall.c: Update.
	* infcmd.c: Update.
	* infrun.c: Update.
	* jit.c: Update.
	* language.c: Update.
	* linespec.c: Update.
	* linux-fork.c: Update.
	* linux-nat.c: Update.
	* linux-tdep.c: Update.
	* linux-thread-db.c: Update.
	* main.c: Update.
	* mi/mi-cmd-break.c: Update.
	* mi/mi-cmd-stack.c: Update.
	* mi/mi-interp.c: Update.
	* mi/mi-main.c: Update.
	* objc-lang.c: Update.
	* p-valprint.c: Update.
	* parse.c: Update.
	* ppc-linux-tdep.c: Update.
	* printcmd.c: Update.
	* python/py-arch.c: Update.
	* python/py-breakpoint.c: Update.
	* python/py-cmd.c: Update.
	* python/py-finishbreakpoint.c: Update.
	* python/py-frame.c: Update.
	* python/py-framefilter.c: Update.
	* python/py-gdb-readline.c: Update.
	* python/py-inferior.c: Update.
	* python/py-infthread.c: Update.
	* python/py-lazy-string.c: Update.
	* python/py-linetable.c: Update.
	* python/py-objfile.c: Update.
	* python/py-param.c: Update.
	* python/py-prettyprint.c: Update.
	* python/py-progspace.c: Update.
	* python/py-record-btrace.c: Update.
	* python/py-record.c: Update.
	* python/py-symbol.c: Update.
	* python/py-type.c: Update.
	* python/py-unwind.c: Update.
	* python/py-utils.c: Update.
	* python/py-value.c: Update.
	* python/python.c: Update.
	* record-btrace.c: Update.
	* record-full.c: Update.
	* remote-fileio.c: Update.
	* remote.c: Update.
	* riscv-tdep.c: Update.
	* rs6000-aix-tdep.c: Update.
	* rs6000-tdep.c: Update.
	* rust-exp.y: Update.
	* rust-lang.c: Update.
	* s390-tdep.c: Update.
	* selftest-arch.c: Update.
	* solib-dsbt.c: Update.
	* solib-frv.c: Update.
	* solib-spu.c: Update.
	* solib-svr4.c: Update.
	* solib.c: Update.
	* sparc64-linux-tdep.c: Update.
	* stack.c: Update.
	* symfile-mem.c: Update.
	* symmisc.c: Update.
	* target.c: Update.
	* thread.c: Update.
	* top.c: Update.
	* tracefile-tfile.c: Update.
	* tui/tui.c: Update.
	* typeprint.c: Update.
	* unittests/cli-utils-selftests.c: Update.
	* unittests/parse-connection-spec-selftests.c: Update.
	* valops.c: Update.
	* valprint.c: Update.
	* value.c: Update.
	* varobj.c: Update.
	* windows-nat.c: Update.
	* x86-linux-nat.c: Update.
	* xml-support.c: Update.

gdb/gdbserver/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* gdbreplay.c: Update.
	* linux-low.c: Update.
	* server.c: Update.
2019-04-08 09:05:40 -06:00
Tom Tromey
a70b814420 Rewrite TRY/CATCH
This rewrites gdb's TRY/CATCH to plain C++ try/catch.  The patch was
largely written by script, though one change (to a comment in
common-exceptions.h) was reverted by hand.

gdb/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* xml-support.c: Use C++ exception handling.
	* x86-linux-nat.c: Use C++ exception handling.
	* windows-nat.c: Use C++ exception handling.
	* varobj.c: Use C++ exception handling.
	* value.c: Use C++ exception handling.
	* valprint.c: Use C++ exception handling.
	* valops.c: Use C++ exception handling.
	* unittests/parse-connection-spec-selftests.c: Use C++ exception
	handling.
	* unittests/cli-utils-selftests.c: Use C++ exception handling.
	* typeprint.c: Use C++ exception handling.
	* tui/tui.c: Use C++ exception handling.
	* tracefile-tfile.c: Use C++ exception handling.
	* top.c: Use C++ exception handling.
	* thread.c: Use C++ exception handling.
	* target.c: Use C++ exception handling.
	* symmisc.c: Use C++ exception handling.
	* symfile-mem.c: Use C++ exception handling.
	* stack.c: Use C++ exception handling.
	* sparc64-linux-tdep.c: Use C++ exception handling.
	* solib.c: Use C++ exception handling.
	* solib-svr4.c: Use C++ exception handling.
	* solib-spu.c: Use C++ exception handling.
	* solib-frv.c: Use C++ exception handling.
	* solib-dsbt.c: Use C++ exception handling.
	* selftest-arch.c: Use C++ exception handling.
	* s390-tdep.c: Use C++ exception handling.
	* rust-lang.c: Use C++ exception handling.
	* rust-exp.y: Use C++ exception handling.
	* rs6000-tdep.c: Use C++ exception handling.
	* rs6000-aix-tdep.c: Use C++ exception handling.
	* riscv-tdep.c: Use C++ exception handling.
	* remote.c: Use C++ exception handling.
	* remote-fileio.c: Use C++ exception handling.
	* record-full.c: Use C++ exception handling.
	* record-btrace.c: Use C++ exception handling.
	* python/python.c: Use C++ exception handling.
	* python/py-value.c: Use C++ exception handling.
	* python/py-utils.c: Use C++ exception handling.
	* python/py-unwind.c: Use C++ exception handling.
	* python/py-type.c: Use C++ exception handling.
	* python/py-symbol.c: Use C++ exception handling.
	* python/py-record.c: Use C++ exception handling.
	* python/py-record-btrace.c: Use C++ exception handling.
	* python/py-progspace.c: Use C++ exception handling.
	* python/py-prettyprint.c: Use C++ exception handling.
	* python/py-param.c: Use C++ exception handling.
	* python/py-objfile.c: Use C++ exception handling.
	* python/py-linetable.c: Use C++ exception handling.
	* python/py-lazy-string.c: Use C++ exception handling.
	* python/py-infthread.c: Use C++ exception handling.
	* python/py-inferior.c: Use C++ exception handling.
	* python/py-gdb-readline.c: Use C++ exception handling.
	* python/py-framefilter.c: Use C++ exception handling.
	* python/py-frame.c: Use C++ exception handling.
	* python/py-finishbreakpoint.c: Use C++ exception handling.
	* python/py-cmd.c: Use C++ exception handling.
	* python/py-breakpoint.c: Use C++ exception handling.
	* python/py-arch.c: Use C++ exception handling.
	* printcmd.c: Use C++ exception handling.
	* ppc-linux-tdep.c: Use C++ exception handling.
	* parse.c: Use C++ exception handling.
	* p-valprint.c: Use C++ exception handling.
	* objc-lang.c: Use C++ exception handling.
	* mi/mi-main.c: Use C++ exception handling.
	* mi/mi-interp.c: Use C++ exception handling.
	* mi/mi-cmd-stack.c: Use C++ exception handling.
	* mi/mi-cmd-break.c: Use C++ exception handling.
	* main.c: Use C++ exception handling.
	* linux-thread-db.c: Use C++ exception handling.
	* linux-tdep.c: Use C++ exception handling.
	* linux-nat.c: Use C++ exception handling.
	* linux-fork.c: Use C++ exception handling.
	* linespec.c: Use C++ exception handling.
	* language.c: Use C++ exception handling.
	* jit.c: Use C++ exception handling.
	* infrun.c: Use C++ exception handling.
	* infcmd.c: Use C++ exception handling.
	* infcall.c: Use C++ exception handling.
	* inf-loop.c: Use C++ exception handling.
	* i386-tdep.c: Use C++ exception handling.
	* i386-linux-tdep.c: Use C++ exception handling.
	* guile/scm-value.c: Use C++ exception handling.
	* guile/scm-type.c: Use C++ exception handling.
	* guile/scm-symtab.c: Use C++ exception handling.
	* guile/scm-symbol.c: Use C++ exception handling.
	* guile/scm-pretty-print.c: Use C++ exception handling.
	* guile/scm-ports.c: Use C++ exception handling.
	* guile/scm-param.c: Use C++ exception handling.
	* guile/scm-math.c: Use C++ exception handling.
	* guile/scm-lazy-string.c: Use C++ exception handling.
	* guile/scm-frame.c: Use C++ exception handling.
	* guile/scm-disasm.c: Use C++ exception handling.
	* guile/scm-cmd.c: Use C++ exception handling.
	* guile/scm-breakpoint.c: Use C++ exception handling.
	* guile/scm-block.c: Use C++ exception handling.
	* guile/guile-internal.h: Use C++ exception handling.
	* gnu-v3-abi.c: Use C++ exception handling.
	* gdbtypes.c: Use C++ exception handling.
	* frame.c: Use C++ exception handling.
	* frame-unwind.c: Use C++ exception handling.
	* fbsd-tdep.c: Use C++ exception handling.
	* f-valprint.c: Use C++ exception handling.
	* exec.c: Use C++ exception handling.
	* event-top.c: Use C++ exception handling.
	* event-loop.c: Use C++ exception handling.
	* eval.c: Use C++ exception handling.
	* dwarf2read.c: Use C++ exception handling.
	* dwarf2loc.c: Use C++ exception handling.
	* dwarf2-frame.c: Use C++ exception handling.
	* dwarf2-frame-tailcall.c: Use C++ exception handling.
	* dwarf-index-write.c: Use C++ exception handling.
	* dwarf-index-cache.c: Use C++ exception handling.
	* dtrace-probe.c: Use C++ exception handling.
	* disasm-selftests.c: Use C++ exception handling.
	* darwin-nat.c: Use C++ exception handling.
	* cp-valprint.c: Use C++ exception handling.
	* cp-support.c: Use C++ exception handling.
	* cp-abi.c: Use C++ exception handling.
	* corelow.c: Use C++ exception handling.
	* completer.c: Use C++ exception handling.
	* compile/compile-object-run.c: Use C++ exception handling.
	* compile/compile-object-load.c: Use C++ exception handling.
	* compile/compile-cplus-symbols.c: Use C++ exception handling.
	* compile/compile-c-symbols.c: Use C++ exception handling.
	* common/selftest.c: Use C++ exception handling.
	* common/new-op.c: Use C++ exception handling.
	* cli/cli-script.c: Use C++ exception handling.
	* cli/cli-interp.c: Use C++ exception handling.
	* cli/cli-cmds.c: Use C++ exception handling.
	* c-varobj.c: Use C++ exception handling.
	* btrace.c: Use C++ exception handling.
	* breakpoint.c: Use C++ exception handling.
	* break-catch-throw.c: Use C++ exception handling.
	* arch-utils.c: Use C++ exception handling.
	* amd64-tdep.c: Use C++ exception handling.
	* ada-valprint.c: Use C++ exception handling.
	* ada-typeprint.c: Use C++ exception handling.
	* ada-lang.c: Use C++ exception handling.
	* aarch64-tdep.c: Use C++ exception handling.

gdb/gdbserver/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* server.c: Use C++ exception handling.
	* linux-low.c: Use C++ exception handling.
	* gdbreplay.c: Use C++ exception handling.
2019-04-08 09:05:39 -06:00
Tom Tromey
3d6e9d2336 Make exceptions use std::string and be self-managing
This changes the exception's "message" member to be a shared_ptr
wrapping a std::string.  This allows removing the stack of exception
messages, because now exceptions will self-destruct when needed.  This
also adds a noexcept copy constructor and operator= to gdb_exception,
plus a "what" method.

gdb/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* xml-support.c (gdb_xml_parser::parse): Update.
	* x86-linux-nat.c (x86_linux_nat_target::enable_btrace): Update.
	* value.c (show_convenience): Update.
	* unittests/cli-utils-selftests.c (test_number_or_range_parser)
	(test_parse_flags_qcs): Update.
	* thread.c (thr_try_catch_cmd): Update.
	* target.c (target_translate_tls_address): Update.
	* stack.c (print_frame_arg, read_frame_local, read_frame_arg)
	(info_frame_command_core, frame_apply_command_count): Update.
	* rust-exp.y (rust_lex_exception_test): Update.
	* riscv-tdep.c (riscv_print_one_register_info): Update.
	* remote.c (remote_target::enable_btrace): Update.
	* record-btrace.c (record_btrace_enable_warn): Update.
	* python/py-utils.c (gdbpy_convert_exception): Update.
	* printcmd.c (do_one_display, print_variable_and_value): Update.
	* mi/mi-main.c (mi_print_exception): Update.
	* mi/mi-interp.c (mi_cmd_interpreter_exec): Use SCOPE_EXIT.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	* linux-nat.c (linux_nat_target::attach): Update.
	* linux-fork.c (class scoped_switch_fork_info): Update.
	* infrun.c (displaced_step_prepare): Update.
	* infcall.c (call_function_by_hand_dummy): Update.
	* guile/scm-exception.c (gdbscm_scm_from_gdb_exception): Update.
	* gnu-v3-abi.c (print_one_vtable): Update.
	* frame.c (get_prev_frame_always): Update.
	* f-valprint.c (info_common_command_for_block): Update.
	* exec.c (try_open_exec_file): Update.
	* exceptions.c (print_exception, exception_print)
	(exception_fprintf, exception_print_same): Update.
	* dwarf2-frame.c (dwarf2_build_frame_info): Update.
	* dwarf-index-cache.c (index_cache::store)
	(index_cache::lookup_gdb_index): Update.
	* darwin-nat.c (maybe_cache_shell): Update.
	* cp-valprint.c (cp_print_value_fields): Update.
	* compile/compile-cplus-symbols.c (gcc_cplus_convert_symbol)
	(gcc_cplus_symbol_address): Update.
	* compile/compile-c-symbols.c (gcc_convert_symbol)
	(gcc_symbol_address, generate_c_for_for_one_variable): Update.
	* common/selftest.c: Update.
	* common/common-exceptions.h (struct gdb_exception) <message>: Now
	a std::string.
	(exception_try_scope_entry, exception_try_scope_exit): Don't
	declare.
	(struct exception_try_scope): Remove.
	(TRY): Don't use exception_try_scope.
	(struct gdb_exception): Add constructor, operator=.
	<what>: New method.
	(struct gdb_exception_RETURN_MASK_ALL)
	(struct gdb_exception_RETURN_MASK_ERROR)
	(struct gdb_exception_RETURN_MASK_QUIT): Add constructor.
	(struct gdb_quit_bad_alloc): Update.
	* common/common-exceptions.c (exception_none): Change
	initializer.
	(struct catcher) <state, exception>: Initialize inline.
	<prev>: Remove member.
	(current_catcher): Remove.
	(catchers): New global.
	(exceptions_state_mc_init): Simplify.
	(catcher_pop): Remove.
	(exceptions_state_mc, exceptions_state_mc_catch): Update.
	(try_scope_depth, exception_try_scope_entry)
	(exception_try_scope_exit): Remove.
	(throw_exception_sjlj): Update.
	(exception_messages, exception_messages_size): Remove.
	(throw_it): Simplify.
	(gdb_exception_sliced_copy): Remove.
	(throw_exception_cxx): Update.
	* cli/cli-script.c (script_from_file): Update.
	* breakpoint.c (insert_bp_location, update_breakpoint_locations):
	Update.
	* ada-valprint.c (ada_val_print): Update.
	* ada-lang.c (ada_to_fixed_type_1, ada_exception_name_addr)
	(create_excep_cond_exprs): Update.

gdb/gdbserver/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* server.c (handle_btrace_general_set, handle_qxfer_btrace)
	(handle_qxfer_btrace_conf, detach_or_kill_for_exit_cleanup)
	(captured_main, main): Update.
	* gdbreplay.c (main): Update.
2019-04-08 09:05:38 -06:00
Joel Brobecker
42a4f53d2b Update copyright year range in all GDB files.
This commit applies all changes made after running the gdb/copyright.py
script.

Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.

gdb/ChangeLog:

	Update copyright year range in all GDB files.
2019-01-01 10:01:51 +04:00
Tom Tromey
35fb8261b9 Style addresses
This changes gdb to style addresses.

gdb/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* ui-out.h (enum class ui_out_style_kind) <ADDRESS>: New
	constant.
	* ui-out.c (ui_out::field_core_addr): Add styling.
	* stack.c (print_frame): Add styling.
	* printcmd.c (print_address): Add styling.
	(print_address_demangle, info_address_command): Likewise.
	* cli/cli-style.h (address_style): Declare.
	* cli/cli-style.c (address_style): New global.
	(_initialize_cli_style): Register new commands.
	* cli-out.c (cli_ui_out::do_field_string): Update.

gdb/testsuite/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* gdb.base/style.exp: Update test to check for address styling.
2018-12-28 12:49:52 -07:00
Tom Tromey
80ae204359 Style variable names
This adds style support for variable names.  For the time being, this
is only done in backtraces, not in ptype or print; those places do not
use ui-out and so would need ad hoc changes.

This also adds styling to the names printed for local variables in
"backtrace full".  This code does not use ui-out, so the styling is
done using the low-level API.

gdb/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* ui-out.h (enum class ui_out_style_kind) <VARIABLE>: New global.
	* stack.c (print_frame_arg): Style name.
	* printcmd.c (print_variable_and_value): Style variable name.
	* cli/cli-style.h (variable_name_style): Declare.
	* cli/cli-style.c (variable_name_style): New global.
	(_initialize_cli_style): Update.
	* cli-out.c (cli_ui_out::do_field_string): Update.

gdb/testsuite/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* gdb.base/style.exp: Add test for variable names.
2018-12-28 12:49:50 -07:00
Tom Tromey
cbe5657196 Add output styles to gdb
This adds some output styling to the CLI.

A style is currently a foreground color, a background color, and an
intensity (dim or bold).  (This list could be expanded depending on
terminal capabilities.)

A style can be applied while printing.  For ui-out, this is done by
passing the style constant as an argument.  For low-level cases,
fprintf_styled and fputs_styled are provided.

Users can control the style via a number of new set/show commands.  In
the interest of not typing many nearly-identical documentation
strings, I automated this.  On the down side, this is not very
i18n-friendly.

I've chose some default colors to use.  I think it would be good to
enable this by default, so that when users start the new gdb, they
will see the new feature.

Stylizing is done if TERM is set and is not "dumb".  This could be
improved when the TUI is available by using the curses has_colors
call.  That is, the lowest layer could call this without committing to
using curses everywhere; see my other patch for TUI colorizing.

I considered adding a new "set_style" method to ui_file.  However,
because the implementation had to interact with the pager code, I
didn't take this approach.  But, one idea might be to put the isatty
check there and then have it defer to the lower layers.

gdb/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* utils.h (set_output_style, fprintf_styled)
	(fputs_styled): Declare.
	* utils.c (applied_style, desired_style): New globals.
	(emit_style_escape, set_output_style): New function.
	(prompt_for_continue): Emit style escapes.
	(fputs_maybe_filtered): Likewise.
	(fputs_styled, fprintf_styled): New functions.
	* ui-out.h (enum class ui_out_style_kind): New.
	(class ui_out) <field_string, field_stream, do_field_string>: Add
	style parameter.
	* ui-out.c (ui_out::field_stream, ui_out::field_string): Add style
	parameter.
	* tui/tui-out.h (class tui_ui_out) <do_field_string>: Add style
	parameter.
	* tui/tui-out.c (tui_ui_out::do_field_string): Add style
	parameter.
	(tui_ui_out::do_field_string): Update.
	* tracepoint.c (print_one_static_tracepoint_marker): Style
	output.
	* stack.c (print_frame_info, print_frame): Style output.
	* source.c (print_source_lines_base): Style output.
	* skip.c (info_skip_command): Style output.
	* record-btrace.c (btrace_call_history_src_line): Style output.
	(btrace_call_history): Likewise.
	* python/py-framefilter.c (py_print_frame): Style output.
	* mi/mi-out.h (class mi_ui_out) <do_field_string>: Add style
	parameter.
	* mi/mi-out.c (mi_ui_out::do_table_header)
	(mi_ui_out::do_field_int): Update.
	(mi_ui_out::do_field_string): Update.
	* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
	Style output.
	* cli/cli-style.h: New file.
	* cli/cli-style.c: New file.
	* cli-out.h (class cli_ui_out) <do_field_string>: Add style
	parameter.
	* cli-out.c (cli_ui_out::do_table_header)
	(cli_ui_out::do_field_int, cli_ui_out::do_field_skip): Update.
	(cli_ui_out::do_field_string): Add style parameter.  Style the
	output.
	* breakpoint.c (print_breakpoint_location): Style output.
	(update_static_tracepoint): Likewise.
	* Makefile.in (SUBDIR_CLI_SRCS): Add cli-style.c.
	(HFILES_NO_SRCDIR): Add cli-style.h.

gdb/testsuite/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* gdb.base/style.exp: New file.
	* gdb.base/style.c: New file.
2018-12-28 12:49:49 -07:00
Philippe Waroquiers
d54cfd762b QUIET flag initialization missing in 2 places.
Fix by Matthew Malcomson  <matthew.malcomson@arm.com>

Pushed as obvious.
2018-11-02 14:20:59 +01:00
Philippe Waroquiers
12615cba84 Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info [args|functions|locals|variables]
Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info [args|functions|locals|variables]

Main changes are:
* stack.c: Add two regexp preg and treg to print_variable_and_value_data
  and used them inside do_print_variable_and_value to filter the
  variables to print.

* symtab.h: Add a new function bool treg_matches_sym_type_name, that
  factorises type matching logic.

* symtab.c: Add type/name matching logic to 'info functions|variables'.

* stack.c : Add type/name matching logic to 'info args|locals'.

gdb/ChangeLog
2018-10-27  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* stack.c (print_variable_and_value_data): Add preg and treg.
	(print_frame_local_vars): Add quiet, regexp and t_regexp arguments,
	and update callers.
	(print_frame_arg_vars): Likewise.
	(prepare_reg): New function.
	(info_locals_command): Extract info print args and use them.
	(info_args_command): Likewise.
	(_initialize_stack): Modify on-line help.
	* symtab.c (treg_matches_sym_type_name): New function.
	(search_symbols): New arg t_regexp.
	(symtab_symbol_info): New args quiet, regexp, t_regexp.
	(info_variables_command): Extract info print args and use them.
	(info_functions_command): Likewise.
	(info_types_command): Update call to symtab_symbol_info.
	(_initialize_symtab): Modify on-line help.
	* symtab.h (treg_matches_sym_type_name): New function.
	(search_symbols): New t_regexp arg.
2018-10-27 13:47:45 +02:00
Simon Marchi
f6efe3f842 Introduce gdbarch_num_cooked_regs
The expression

  gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch)

is used quite often to find the number of cooked registers (raw + pseudo
registers).  This patch introduces gdbarch_num_cooked_regs, which does
the equivalent.  It substantially reduces required wrapping in some
places, so should improve readability.

There is a for loop in m68hc11_frame_unwind_cache that had iterated
until (the equivalent of) gdbarch_num_cooked_regs (gdbarch) - 1.  During
review, we concluded that this is most likely an off-by-one mistake, so
I replaced it with gdbarch_num_cooked_regs (gdbarch).

gdb/ChangeLog:

	* gdbarch.sh (gdbarch_num_cooked_regs): New.
	* gdbarch.h: Re-generate.
	* ax-gdb.c (gen_expr): Use gdbarch_num_cooked_regs.
	* dwarf2-frame.c (dwarf2_frame_cache): Likewise.
	* eval.c (evaluate_subexp_standard): Likewise.
	* findvar.c (value_of_register): Likewise.
	(value_of_register_lazy): Likewise.
	(address_from_register): Likewise.
	* frame.c (get_frame_register_bytes): Likewise.
	* gdbarch-selftests.c (register_to_value_test): Likewise.
	* h8300-tdep.c (h8300_register_type): Likewise.
	* i386-tdep.c (i386_dbx_reg_to_regnum): Likewise.
	(i386_svr4_reg_to_regnum): Likewise.
	* infcmd.c (default_print_registers_info): Likewise.
	(registers_info): Likewise.
	(print_vector_info): Likewise.
	(default_print_float_info): Likewise.
	* m68hc11-tdep.c (m68hc11_frame_unwind_cache): Likewise.
	* mdebugread.c (mdebug_reg_to_regnum): Likewise.
	* mi/mi-main.c (mi_cmd_data_list_register_names): Likewise.
	(mi_cmd_data_list_changed_registers): Likewise.
	(mi_cmd_data_list_register_values): Likewise.
	(mi_cmd_data_write_register_values): Likewise.
	(mi_cmd_trace_frame_collected): Likewise.
	* mips-tdep.c (print_gp_register_row): Likewise.
	(mips_print_registers_info): Likewise.
	* nds32-tdep.c (nds32_gdbarch_init): Likewise.
	* regcache.c (init_regcache_descr): Likewise.
	(register_size): Likewise.
	(register_dump::dump): Likewise.
	(cooked_read_test): Likewise.
	(cooked_write_test): Likewise.
	* rs6000-tdep.c (rs6000_register_sim_regno): Likewise.
	(rs6000_gdbarch_init): Likewise.
	* stabsread.c (stab_reg_to_regnum): Likewise.
	* stack.c (info_frame_command): Likewise.
	* target-descriptions.c (tdesc_register_name): Likewise.
	* trad-frame.c (trad_frame_alloc_saved_regs): Likewise.
	* tui/tui-regs.c (tui_show_register_group): Likewise.
	* user-regs.c (user_reg_map_name_to_regnum): Likewise.
	(user_reg_map_regnum_to_name): Likewise.
	(value_of_user_reg): Likewise.
	(maintenance_print_user_registers): Likewise.
	* xtensa-tdep.c (xtensa_find_register_by_name): Likewise.
	(xtensa_register_name): Likewise.
	(xtensa_register_type): Likewise.
	(xtensa_reg_to_regnum): Likewise.
	(xtensa_pseudo_register_read): Likewise.
	(xtensa_pseudo_register_write): Likewise.
2018-10-21 22:29:21 -04:00
Tom Tromey
b926417afa Simple -Wshadow=local fixes
This fixes all the straightforward -Wshadow=local warnings in gdb.  A
few standard approaches are used here:

* Renaming an inner (or outer, but more commonly inner) variable;
* Lowering a declaration to avoid a clash;
* Moving a declaration into a more inner scope to avoid a clash,
  including the special case of moving a declaration into a loop header.

I did not consider any of the changes in this patch to be particularly
noteworthy, though of course they should all still be examined.

gdb/ChangeLog
2018-10-04  Tom Tromey  <tom@tromey.com>

	* ctf.c (SET_ARRAY_FIELD): Rename "u32".
	* p-valprint.c (pascal_val_print): Split inner "i" variable.
	* xtensa-tdep.c (xtensa_push_dummy_call): Declare "i" in loop
	header.
	* xstormy16-tdep.c (xstormy16_push_dummy_call): Declare "val" in
	more inner scope.
	* xcoffread.c (read_xcoff_symtab): Rename inner "symbol".
	* varobj.c (varobj_update): Rename inner "newobj",
	"type_changed".
	* valprint.c (generic_emit_char): Rename inner "buf".
	* valops.c (find_overload_match): Rename inner "temp".
	(value_struct_elt_for_reference): Declare "v" in more inner
	scope.
	* v850-tdep.c (v850_push_dummy_call): Rename "len".
	* unittests/array-view-selftests.c (run_tests): Rename inner
	"vec".
	* tui/tui-stack.c (tui_show_frame_info): Declare "i" in loop
	header.
	* tracepoint.c (merge_uploaded_trace_state_variables): Declare
	"tsv" in more inner scope.
	(print_one_static_tracepoint_marker): Rename inner
	"tuple_emitter".
	* tic6x-tdep.c (tic6x_analyze_prologue): Declare "inst" lower.
	(tic6x_push_dummy_call): Don't redeclare "addr".
	* target-float.c: Declare "dto" lower.
	* symtab.c (lookup_local_symbol): Rename inner "sym".
	(find_pc_sect_line): Rename inner "pc".
	* stack.c (print_frame): Don't redeclare "gdbarch".
	(return_command): Rename inner "gdbarch".
	* s390-tdep.c (s390_prologue_frame_unwind_cache): Renam inner
	"sp".
	* rust-lang.c (rust_internal_print_type): Declare "i" in loop
	header.
	* rs6000-tdep.c (ppc_process_record): Rename inner "addr".
	* riscv-tdep.c (riscv_push_dummy_call): Declare "info" in inner
	scope.
	* remote.c (remote_target::update_thread_list): Don't redeclare
	"tp".
	(remote_target::process_initial_stop_replies): Rename inner
	"thread".
	(remote_target::remote_parse_stop_reply): Don't redeclare "p".
	(remote_target::wait_as): Don't redeclare "stop_reply".
	(remote_target::get_thread_local_address): Rename inner
	"result".
	(remote_target::get_tib_address): Likewise.
2018-10-04 22:51:45 -06:00
Andrew Burgess
f67ffa6a78 gdb: Change how frames are selected for 'frame' and 'info frame'.
The 'frame' command, and thanks to code reuse the 'info frame' and
'select-frame' commands, currently have an overloaded mechanism for
selecting a frame.

These commands take one or two parameters, if it's one parameter then
we first try to use the parameter as an integer to select a frame by
level (or depth in the stack).  If that fails then we treat the
parameter as an address and try to select a stack frame by
stack-address.  If we still have not selected a stack frame, or we
initially had two parameters, then GDB allows the user to view a stack
frame that is not part of the current backtrace.  Internally, a new
frame is created with the given stack and pc addresses, and this is
shown to the user.

The result of this is that a typo by the user, entering the wrong stack
frame level for example, can result in a brand new frame being viewed
rather than an error.

The purpose of this commit is to remove this overloading, while still
offering the same functionality through some new sub-commands.  By
making the default behaviour of 'frame' (and friends) be to select a
stack frame by level index, it is hoped that enough
backwards-compatibility is maintained that users will not be overly
inconvenienced.

The 'frame', 'select-frame', and 'info frame' commands now all take a
frame specification string as an argument, this string can be any of the
following:

  (1) An integer.  This is treated as a frame level.  If a frame for
  that level does not exist then the user gets an error.

  (2) A string like 'level <LEVEL>', where <LEVEL> is a frame level
  as in option (1) above.

  (3) A string like 'address <STACK-ADDRESS>', where <STACK-ADDRESS>
  is a stack-frame address.  If there is no frame for this address
  then the user gets an error.

  (4) A string like 'function <NAME>', where <NAME> is a function name,
  the inner most frame for function <NAME> is selected.  If there is no
  frame for function <NAME> then the user gets an error.

  (5) A string like 'view <STACK-ADDRESS>', this views a new frame
  with stack address <STACK-ADDRESS>.

  (6) A string like 'view <STACK-ADDRESS> <PC-ADDRESS>', this views
  a new frame with stack address <STACK-ADDRESS> and the pc <PC-ADDRESS>.

This change assumes that the most common use of the commands like
'frame' is to select a frame by frame level, it is for this reason
that this is the behaviour that is kept for backwards compatibility.
Any of the alternative behaviours, which are assumed to be less used,
now require a change in user behaviour.

The MI command '-stack-select-frame' has not been changed.  This
ensures that we maintain backwards compatibility for existing
frontends.

gdb/ChangeLog:

	(NEWS): Mention changes to frame related commands.
	* cli/cli-decode.c (add_cmd_suppress_notification): New function.
	(add_prefix_cmd_suppress_notification): New function.
	(add_com_suppress_notification): Call
	add_cmd_suppress_notification.
	* command.h (add_cmd_suppress_notification): Declare.
	(add_prefix_cmd_suppress_notification): Declare.
	* mi/mi-cmd-stack.c: Add 'safe-ctype.h' include.
	(parse_frame_specification): Moved from stack.c, with
	simplification to handle a single argument.
	(mi_cmd_stack_select_frame): Use parse_frame_specification, the
	switch to the selected frame.  Add a header comment.
	* stack.c: Remove 'safe-ctype.h' include.
	(find_frame_for_function): Add declaration.
	(find_frame_for_address): New function.
	(parse_frame_specification): Moved into mi/mi-cmd-stack.c.
	(frame_selection_by_function_completer): New function.
	(info_frame_command): Rename to...
	(info_frame_command_core): ...this, and update parameter types.
	(select_frame_command): Rename to...
	(select_frame_command_core): ...this, and update parameter types.
	(frame_command): Rename to...
	(frame_command_core): ...this, and update parameter types.
	(class frame_command_helper): New class to wrap implementations of
	frame related sub-commands.
	(frame_apply_cmd_list): New static global.
	(frame_cmd_list): Make static.
	(select_frame_cmd_list): New global for sub-commands.
	(info_frame_cmd_list): New global for sub-commands.
	(_initialize_stack): Register sub-commands for 'frame',
	'select-frame', and 'info frame'.  Update 'frame apply' commands
	to use frame_apply_cmd_list.  Move function local static
	frame_apply_list to file static frame_apply_cmd_list for
	consistency.
	* stack.h (select_frame_command): Delete declarationn.
	(select_frame_for_mi): Declare new function.

gdb/doc/ChangeLog:

	* gdb.texinfo (Frames): Rewrite the description of 'frame number'
	to highlight that the number is also the frame's level.
	(Selection): Rewrite documentation for 'frame' and 'select-frame'
	commands.
	(Frame Info): Rewrite documentation for 'info frame' command.

gdb/testsuite/ChangeLog:

	* gdb.base/frame-selection.exp: New file.
	* gdb.base/frame-selection.c: New file.
2018-09-28 11:59:34 +01:00
Kevin Buettner
2b1ffcfd6f Use BLOCK_ENTRY_PC in place of most uses of BLOCK_START
This change/patch substitues BLOCK_ENTRY_PC for BLOCK_START in
places where BLOCK_START is used to obtain the address at which
execution should enter the block.  Since blocks can now contain
non-contiguous ranges, the BLOCK_START - which is still be the
very lowest address in the block - might not be the same as
BLOCK_ENTRY_PC.

There is a change to infrun.c which is less obvious and less mechanical.
I'm posting it as a separate patch.

gdb/ChangeLog:

	* ax-gdb.c (gen_var_ref): Use BLOCK_ENTRY_PC in place of
	BLOCK_START.
	* blockframe.c (get_pc_function_start): Likewise.
	* compile/compile-c-symbols.c (convert_one_symbol): Likewise.
	(gcc_symbol_address): Likewise.
	* compile/compile-object-run.c (compile_object_run): Likewise.
	* compile/compile.c (get_expr_block_and_pc): Likewise.
	* dwarf2loc.c (dwarf2_find_location_expression): Likewise.
	(func_addr_to_tail_call_list): Likewise.
	* findvar.c (default_read_var_value): Likewise.
	* inline-frame.c (inline_frame_this_id): Likewise.
	(skip-inline_frames): Likewise.
	* infcmd.c (until_next_command): Likewise.
	* linespec.c (convert_linespec_to_sals): Likewise.
	* parse.c (parse_exp_in_context_1): Likewise.
	* printcmd.c (build_address_symbolic): likewise.
	(info_address_command): Likewise.
	symtab.c (find_function_start_sal): Likewise.
	(skip_prologue_sal): Likewise.
	(find_function_alias_target): Likewise.
	(find_gnu_ifunc): Likewise.
	* stack.c (find_frame_funname): Likewise.
	* symtab.c (fixup_symbol_section): Likewise.
	(find_function_start_sal): Likewise.
	(skip_prologue_sal): Likewsie.
	(find_function_alias_target): Likewise.
	(find_gnu_ifunc): Likewise.
	* tracepoint.c (info_scope_command): Likewise.
	* value.c (value_fn_field): Likewise.
2018-08-23 16:19:18 -07:00
Jan Vrany
6d52907e22 MI: Print frame architecture when printing frames on an MI channel
When printing frames on an MI channel also print the frame
architecture like in:

    (gdb)
    -stack-list-frames 3 3
    ^done,stack=
    [frame={level="3",addr="0x000107a4",func="foo",
      file="recursive2.c",fullname="/home/foo/bar/recursive2.c",
      line="14",arch="i386:x86_64"}]
   (gdb)

This is useful for MI clients that need to know the architecture in
order to perform further analysis, for example to use their own
disassembler to analyze machine code.

gdb/Changelog:
2018-08-22  Jan Vrany  <jan.vrany@fit.cvut.cz>

	* stack.c (print_frame): Print frame architecture when printing on
        an MI output.
	* NEWS: Mention new "arch" attribute in frame output.

gdb/testsuite/Changelog
2018-08-22  Jan Vrany  <jan.vrany@fit.cvut.cz>

	* lib/mi-support.exp (mi_expect_stop): Update regexp to
	accommodate new "arch" field in frame output.
	* gdb.mi/mi-return.exp: Likewise.
	* gdb.mi/mi-stack.exp: Likewise.
	* gdb.mi/mi-syn-frame.exp: Likewise.
	* gdb.mi/user-selected-context-sync.exp: Likewise.

gdb/doc/Changelog
2018-08-22  Jan Vrany  <jan.vrany@fit.cvut.cz>

	* gdb.texinfo (The -stack-list-frames Command): Update description
	to mention "arch".
	Update MI examples throughout the document to contain "arch" in
	frame output.
2018-08-22 11:54:37 +01:00
Tom Tromey
8d49165d83 Simple unused variable removals
This patch holds all the straightforward unused variable deletions.

gdb/ChangeLog
2018-07-22  Tom Tromey  <tom@tromey.com>

	* guile/scm-value.c (gdbscm_value_call): Remove unused variables.
	* guile/scm-math.c (vlscm_unop_gdbthrow, vlscm_binop_gdbthrow)
	(vlscm_convert_typed_value_from_scheme): Remove unused variable.
	* buildsym-legacy.c (get_macro_table): Remove unused variable.
	* stack.c (frame_apply_level_command): Remove unused variable.
	* tic6x-tdep.c (tic6x_push_dummy_call): Remove unused variable.
	* sparc64-tdep.c (adi_examine_command): Remove unused variable.
	* rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Remove
	unused variable.
	* nios2-tdep.c (nios2_push_dummy_call): Remove unused variable.
	* mep-tdep.c (mep_push_dummy_call): Remove unused variable.
	* ada-lang.c (ada_lookup_symbol_list_worker): Remove unused
	variable.
	* amd64-tdep.c (amd64_supply_xsave): Remove unused variable.
	* arm-tdep.c (arm_record_data_proc_misc_ld_str): Remove unused
	variable.
	* breakpoint.c (check_no_tracepoint_commands, update_watchpoint):
	Remove unused variable.
	* cli/cli-script.c (recurse_read_control_structure): Remove unused
	variable.
	* common/tdesc.c (print_xml_feature::visit): Remove unused
	variable.
	* compile/compile-object-load.c (store_regs): Remove unused
	variables.
	* complaints.c (clear_complaints): Remove unused variable.
	* corelow.c (core_target_open): Remove unused variable.
	* fbsd-tdep.c (fbsd_core_info_proc_status): Remove unused
	variable.
	* guile/scm-frame.c (gdbscm_frame_read_var): Remove unused
	variable.
	* guile/scm-symtab.c (stscm_print_sal_smob): Remove unused
	variable.
	* guile/scm-type.c (gdbscm_field_baseclass_p): Remove unused
	variable.
	* guile/scm-utils.c (gdbscm_parse_function_args): Remove unused
	variable.
	* hppa-tdep.c (hppa_stub_frame_unwind_cache): Remove unused
	variable.
	* ia64-tdep.c (examine_prologue): Remove unused variable.
	* infcall.c (run_inferior_call): Remove unused variable.
	* inferior.c (exit_inferior): Remove unused variable.
	* infrun.c (infrun_thread_ptid_changed): Remove unused variable.
	* linespec.c (decode_line_2): Remove unused variable.
	* linux-nat.c (super_close): Remove.
	* linux-tdep.c (linux_info_proc): Remove unused variable.
	* mi/mi-main.c (mi_execute_command): Remove unused variable.
	* microblaze-linux-tdep.c (microblaze_linux_sigtramp_cache):
	Remove unused variable.
	* parse.c (find_minsym_type_and_address): Remove unused variable.
	* printcmd.c (info_symbol_command, printf_floating): Remove unused
	variable.
	* python/py-breakpoint.c (bppy_set_commands): Remove unused
	variable.
	* python/py-unwind.c (unwind_infopy_dealloc): Remove unused
	variables.
	* record-btrace.c (record_btrace_target::store_registers): Remove
	unused variable.
	(cmd_show_record_btrace_cpu): Remove unused variable.
	* riscv-tdep.c (riscv_register_reggroup_p)
	(riscv_push_dummy_call, riscv_return_value): Remove unused
	variable.
	* rust-exp.y (literal): Remove unused variable.
	* rust-lang.c (rust_evaluate_subexp) <OP_RUST_ARARAY>: Remove
	unused variable.
	<STRUCTOP_ANONYMOUS>: Likewise.
	* s390-linux-tdep.c (s390_linux_init_abi_31)
	(s390_linux_init_abi_64): Remove unused variable.
	* ser-ming2.c (ser_windows_read_prim, pipe_select_thread)
	(file_select_thread, net_windows_open, _initialize_ser_windows):
	Remove unused variables.
	* symtab.c (find_pc_sect_line): Remove unused variable.
	* target-memory.c (compute_garbled_blocks): Remove unused
	variable.
	(target_write_memory_blocks): Remove unused variable.
	* target.c (target_stack::unpush): Remove unused variables.
	* tracepoint.c (start_tracing, all_tracepoint_actions)
	(merge_uploaded_trace_state_variables)
	(print_one_static_tracepoint_marker): Remove unused variable.
	* unittests/basic_string_view/element_access/char/1.cc (test01):
	Remove unused variable.
	* windows-nat.c (windows_continue, windows_add_all_dlls)
	(do_initial_windows_stuff, windows_nat_target::create_inferior):
	Remove unused variables.
2018-07-22 13:20:01 -06:00
Philippe Waroquiers
6a70eb7d9b Implement frame apply [all | COUNT | -COUNT | level LEVEL... ] [FLAG]... COMMAND.
Implement frame apply [all | COUNT | -COUNT | level LEVEL... ] [FLAG]... COMMAND.
Also implement the command 'faas COMMAND', a shortcut for
'frame apply all -s COMMAND'.

The syntax of 'frame apply' to specify some innermost or outermost
frames is similar to 'backtrace' command, using COUNT or -COUNT.

To apply a COMMAND to a more specific set of frames, the following
new command and syntax can be used:
frame apply level LEVEL... [FLAG]... COMMAND
where LEVEL is one or more frame levels or range of frame levels.

The new command 'frame apply' allows to apply a COMMAND to a number of frames,
or to all frames, or to a set of frames.
The optional [FLAG]... arguments allow to control what output to produce
and how to handle errors raised when applying COMMAND to a frame.

Some example usages for this new command:
   frame apply all info frame
      Produce info frame for all frames.
   frame apply all p $sp
      For each frame, print the location, followed by the frame sp.
   frame apply all -q p $sp
      Same as before, but -q flag (q = quiet) indicates to only print
      the frames sp.
   frame apply all p some_local_var_somewhere
      Print some_local_var_somewhere in all frames. 'frame apply'
      will abort as soon as the print command fails.
   frame apply all -c p some_local_var_somewhere
      Same as before, but -c flag (c = continue) means to
      print the error and continue applying command in case the
      print command fails.
   frame apply all -s p some_local_var_somewhere
      Same as before, but -s flag (s = silent) means to
      be silent for frames where the print command fails.
      In other words, this allows to 'search' the frame in which
      some_local_var_somewhere can be printed.
   frame apply all -s -q p some_local_var_somewhere
      Same as before, but does not print the frame info in which
      the variable is found.
   frame apply level 2-4 5 8-10 -s p i = i + 1
      Increments i in the identified frames.

gdb/ChangeLog
2018-07-12  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* stack.c: (trailing_outermost_frame): New function, mostly
	extracted from backtrace_command_1.
	(leading_innermost_frame): New function.
	(backtrace_command_1): Update to call trailing_outermost_frame.
	(frame_apply_command_count): New function.
	(frame_apply_level_command): New function.
	(frame_apply_all_command): New function.
	(frame_apply_command): New function.
	(faas_command): New function.
	(frame_cmd_list): New variable.
	(_initialize_stack): Update to setup the new commands 'frame apply'
	and 'faas'.
2018-07-12 22:50:36 +02:00
Tom Tromey
41827fc34d Update "func" help text to GNU standards
In my earlier series to change help text to follow the GNU standards
for metasyntactic variables, I missed one: the "func" command.  This
patch updates its help text.

Tested by the buildbot.

gdb/ChangeLog
2018-06-27  Tom Tromey  <tom@tromey.com>

	* stack.c (_initialize_stack): Update "func" help text.
2018-06-27 15:09:05 -06:00
Pedro Alves
00431a78b2 Use thread_info and inferior pointers more throughout
This is more preparation bits for multi-target support.

In a multi-target scenario, we need to address the case of different
processes/threads running on different targets that happen to have the
same PID/PTID.  E.g., we can have both process 123 in target 1, and
process 123 in target 2, while they're in reality different processes
running on different machines.  Or maybe we've loaded multiple
instances of the same core file.  Etc.

To address this, in my WIP multi-target branch, threads and processes
are uniquely identified by the (process_stratum target_ops *, ptid_t)
and (process_stratum target_ops *, pid) tuples respectively.  I.e.,
each process_stratum instance has its own thread/process number space.

As you can imagine, that requires passing around target_ops * pointers
in a number of functions where we're currently passing only a ptid_t
or an int.  E.g., when we look up a thread_info object by ptid_t in
find_thread_ptid, the ptid_t alone isn't sufficient.

In many cases though, we already have the thread_info or inferior
pointer handy, but we "lose" it somewhere along the call stack, only
to look it up again by ptid_t/pid.  Since thread_info or inferior
objects know their parent target, if we pass around thread_info or
inferior pointers when possible, we avoid having to add extra
target_ops parameters to many functions, and also, we eliminate a
number of by ptid_t/int lookups.

So that's what this patch does.  In a bit more detail:

- Changes a number of functions and methods to take a thread_info or
  inferior pointer instead of a ptid_t or int parameter.

- Changes a number of structure fields from ptid_t/int to inferior or
  thread_info pointers.

- Uses the inferior_thread() function whenever possible instead of
  inferior_ptid.

- Uses thread_info pointers directly when possible instead of the
  is_running/is_stopped etc. routines that require a lookup.

- A number of functions are eliminated along the way, such as:

  int valid_gdb_inferior_id (int num);
  int pid_to_gdb_inferior_id (int pid);
  int gdb_inferior_id_to_pid (int num);
  int in_inferior_list (int pid);

- A few structures and places hold a thread_info pointer across
  inferior execution, so now they take a strong reference to the
  (refcounted) thread_info object to avoid the thread_info pointer
  getting stale.  This is done in enable_thread_stack_temporaries and
  in the infcall.c code.

- Related, there's a spot in infcall.c where using a RAII object to
  handle the refcount would be handy, so a gdb::ref_ptr specialization
  for thread_info is added (thread_info_ref, in gdbthread.h), along
  with a gdb_ref_ptr policy that works for all refcounted_object types
  (in common/refcounted-object.h).

gdb/ChangeLog:
2018-06-21  Pedro Alves  <palves@redhat.com>

	* ada-lang.h (ada_get_task_number): Take a thread_info pointer
	instead of a ptid_t.  All callers adjusted.
	* ada-tasks.c (ada_get_task_number): Likewise.  All callers
	adjusted.
	(print_ada_task_info, display_current_task_id, task_command_1):
	Adjust.
	* breakpoint.c (watchpoint_in_thread_scope): Adjust to use
	inferior_thread.
	(breakpoint_kind): Adjust.
	(remove_breakpoints_pid): Rename to ...
	(remove_breakpoints_inf): ... this.  Adjust to take an inferior
	pointer.  All callers adjusted.
	(bpstat_clear_actions): Use inferior_thread.
	(get_bpstat_thread): New.
	(bpstat_do_actions): Use it.
	(bpstat_check_breakpoint_conditions, bpstat_stop_status): Adjust
	to take a thread_info pointer.  All callers adjusted.
	(set_longjmp_breakpoint_for_call_dummy, set_momentary_breakpoint)
	(breakpoint_re_set_thread): Use inferior_thread.
	* breakpoint.h (struct inferior): Forward declare.
	(bpstat_stop_status): Update.
	(remove_breakpoints_pid): Delete.
	(remove_breakpoints_inf): New.
	* bsd-uthread.c (bsd_uthread_target::wait)
	(bsd_uthread_target::update_thread_list): Use find_thread_ptid.
	* btrace.c (btrace_add_pc, btrace_enable, btrace_fetch)
	(maint_btrace_packet_history_cmd)
	(maint_btrace_clear_packet_history_cmd): Adjust.
	(maint_btrace_clear_cmd, maint_info_btrace_cmd): Adjust to use
	inferior_thread.
	* cli/cli-interp.c: Include "inferior.h".
	* common/refcounted-object.h (struct
	refcounted_object_ref_policy): New.
	* compile/compile-object-load.c: Include gdbthread.h.
	(store_regs): Use inferior_thread.
	* corelow.c (core_target::close): Use current_inferior.
	(core_target_open): Adjust to use first_thread_of_inferior and use
	the current inferior.
	* ctf.c (ctf_target::close): Adjust to use current_inferior.
	* dummy-frame.c (dummy_frame_id) <ptid>: Delete, replaced by ...
	<thread>: ... this new field.  All references adjusted.
	(dummy_frame_pop, dummy_frame_discard, register_dummy_frame_dtor):
	Take a thread_info pointer instead of a ptid_t.
	* dummy-frame.h (dummy_frame_push, dummy_frame_pop)
	(dummy_frame_discard, register_dummy_frame_dtor): Take a
	thread_info pointer instead of a ptid_t.
	* elfread.c: Include "inferior.h".
	(elf_gnu_ifunc_resolver_stop, elf_gnu_ifunc_resolver_return_stop):
	Use inferior_thread.
	* eval.c (evaluate_subexp): Likewise.
	* frame.c (frame_pop, has_stack_frames, find_frame_sal): Use
	inferior_thread.
	* gdb_proc_service.h (struct thread_info): Forward declare.
	(struct ps_prochandle) <ptid>: Delete, replaced by ...
	<thread>: ... this new field.  All references adjusted.
	* gdbarch.h, gdbarch.c: Regenerate.
	* gdbarch.sh (get_syscall_number): Replace 'ptid' parameter with a
	'thread' parameter.  All implementations and callers adjusted.
	* gdbthread.h (thread_info) <set_running>: New method.
	(delete_thread, delete_thread_silent): Take a thread_info pointer
	instead of a ptid.
	(global_thread_id_to_ptid, ptid_to_global_thread_id): Delete.
	(first_thread_of_process): Delete, replaced by ...
	(first_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(any_live_thread_of_process): Delete, replaced by ...
	(any_live_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(switch_to_thread, switch_to_no_thread): Declare.
	(is_executing): Delete.
	(enable_thread_stack_temporaries): Update comment.
	<enable_thread_stack_temporaries>: Take a thread_info pointer
	instead of a ptid_t.  Incref the thread.
	<~enable_thread_stack_temporaries>: Decref the thread.
	<m_ptid>: Delete
	<m_thr>: New.
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(get_last_thread_stack_temporary)
	(value_in_thread_stack_temporaries, can_access_registers_thread):
	Take a thread_info pointer instead of a ptid_t.  All callers
	adjusted.
	* infcall.c (get_call_return_value): Use inferior_thread.
	(run_inferior_call): Work with thread pointers instead of ptid_t.
	(call_function_by_hand_dummy): Work with thread pointers instead
	of ptid_t.  Use thread_info_ref.
	* infcmd.c (proceed_thread_callback): Access thread's state
	directly.
	(ensure_valid_thread, ensure_not_running): Use inferior_thread,
	access thread's state directly.
	(continue_command): Use inferior_thread.
	(info_program_command): Use find_thread_ptid and access thread
	state directly.
	(proceed_after_attach_callback): Use thread state directly.
	(notice_new_inferior): Take a thread_info pointer instead of a
	ptid_t.  All callers adjusted.
	(exit_inferior): Take an inferior pointer instead of a pid.  All
	callers adjusted.
	(exit_inferior_silent): New.
	(detach_inferior): Delete.
	(valid_gdb_inferior_id, pid_to_gdb_inferior_id)
	(gdb_inferior_id_to_pid, in_inferior_list): Delete.
	(detach_inferior_command, kill_inferior_command): Use
	find_inferior_id instead of valid_gdb_inferior_id and
	gdb_inferior_id_to_pid.
	(inferior_command): Use inferior and thread pointers.
	* inferior.h (struct thread_info): Forward declare.
	(notice_new_inferior): Take a thread_info pointer instead of a
	ptid_t.  All callers adjusted.
	(detach_inferior): Delete declaration.
	(exit_inferior, exit_inferior_silent): Take an inferior pointer
	instead of a pid.  All callers adjusted.
	(gdb_inferior_id_to_pid, pid_to_gdb_inferior_id, in_inferior_list)
	(valid_gdb_inferior_id): Delete.
	* infrun.c (follow_fork_inferior, proceed_after_vfork_done)
	(handle_vfork_child_exec_or_exit, follow_exec): Adjust.
	(struct displaced_step_inferior_state) <pid>: Delete, replaced by
	...
	<inf>: ... this new field.
	<step_ptid>: Delete, replaced by ...
	<step_thread>: ... this new field.
	(get_displaced_stepping_state): Take an inferior pointer instead
	of a pid.  All callers adjusted.
	(displaced_step_in_progress_any_inferior): Adjust.
	(displaced_step_in_progress_thread): Take a thread pointer instead
	of a ptid_t.  All callers adjusted.
	(displaced_step_in_progress, add_displaced_stepping_state): Take
	an inferior pointer instead of a pid.  All callers adjusted.
	(get_displaced_step_closure_by_addr): Adjust.
	(remove_displaced_stepping_state): Take an inferior pointer
	instead of a pid.  All callers adjusted.
	(displaced_step_prepare_throw, displaced_step_prepare)
	(displaced_step_fixup): Take a thread pointer instead of a ptid_t.
	All callers adjusted.
	(start_step_over): Adjust.
	(infrun_thread_ptid_changed): Remove bit updating ptids in the
	displaced step queue.
	(do_target_resume): Adjust.
	(fetch_inferior_event): Use inferior_thread.
	(context_switch, get_inferior_stop_soon): Take an
	execution_control_state pointer instead of a ptid_t.  All callers
	adjusted.
	(switch_to_thread_cleanup): Delete.
	(stop_all_threads): Use scoped_restore_current_thread.
	* inline-frame.c: Include "gdbthread.h".
	(inline_state) <inline_state>: Take a thread pointer instead of a
	ptid_t.  All callers adjusted.
	<ptid>: Delete, replaced by ...
	<thread>: ... this new field.
	(find_inline_frame_state): Take a thread pointer instead of a
	ptid_t.  All callers adjusted.
	(skip_inline_frames, step_into_inline_frame)
	(inline_skipped_frames, inline_skipped_symbol): Take a thread
	pointer instead of a ptid_t.  All callers adjusted.
	* inline-frame.h (skip_inline_frames, step_into_inline_frame)
	(inline_skipped_frames, inline_skipped_symbol): Likewise.
	* linux-fork.c (delete_checkpoint_command): Adjust to use thread
	pointers directly.
	* linux-nat.c (get_detach_signal): Likewise.
	* linux-thread-db.c (thread_from_lwp): New 'stopped' parameter.
	(thread_db_notice_clone): Adjust.
	(thread_db_find_new_threads_silently)
	(thread_db_find_new_threads_2, thread_db_find_new_threads_1): Take
	a thread pointer instead of a ptid_t.  All callers adjusted.
	* mi/mi-cmd-var.c: Include "inferior.h".
	(mi_cmd_var_update_iter): Update to use thread pointers.
	* mi/mi-interp.c (mi_new_thread): Update to use the thread's
	inferior directly.
	(mi_output_running_pid, mi_inferior_count): Delete, bits factored
	out to ...
	(mi_output_running): ... this new function.
	(mi_on_resume_1): Adjust to use it.
	(mi_user_selected_context_changed): Adjust to use inferior_thread.
	* mi/mi-main.c (proceed_thread): Adjust to use thread pointers
	directly.
	(interrupt_thread_callback): : Adjust to use thread and inferior
	pointers.
	* proc-service.c: Include "gdbthread.h".
	(ps_pglobal_lookup): Adjust to use the thread's inferior directly.
	* progspace-and-thread.c: Include "inferior.h".
	* progspace.c: Include "inferior.h".
	* python/py-exitedevent.c (create_exited_event_object): Adjust to
	hold a reference to an inferior_object.
	* python/py-finishbreakpoint.c (bpfinishpy_init): Adjust to use
	inferior_thread.
	* python/py-inferior.c (struct inferior_object): Give the type a
	tag name instead of a typedef.
	(python_on_normal_stop): No need to check if the current thread is
	listed.
	(inferior_to_inferior_object): Change return type to
	inferior_object.  All callers adjusted.
	(find_thread_object): Delete, bits factored out to ...
	(thread_to_thread_object): ... this new function.
	* python/py-infthread.c (create_thread_object): Use
	inferior_to_inferior_object.
	(thpy_is_stopped): Use thread pointer directly.
	(gdbpy_selected_thread): Use inferior_thread.
	* python/py-record-btrace.c (btpy_list_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(btpy_insn_or_gap_new): Drop const.
	(btpy_list_new): Take a thread pointer instead of a ptid_t.  All
	callers adjusted.
	* python/py-record.c: Include "gdbthread.h".
	(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
	a ptid_t.  All callers adjusted.
	(gdbpy_current_recording): Use inferior_thread.
	* python/py-record.h (recpy_record_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(recpy_element_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
	a ptid_t.  All callers adjusted.
	* python/py-threadevent.c: Include "gdbthread.h".
	(get_event_thread): Use thread_to_thread_object.
	* python/python-internal.h (struct inferior_object): Forward
	declare.
	(find_thread_object, find_inferior_object): Delete declarations.
	(thread_to_thread_object, inferior_to_inferior_object): New
	declarations.
	* record-btrace.c: Include "inferior.h".
	(require_btrace_thread): Use inferior_thread.
	(record_btrace_frame_sniffer)
	(record_btrace_tailcall_frame_sniffer): Use inferior_thread.
	(get_thread_current_frame): Use scoped_restore_current_thread and
	switch_to_thread.
	(get_thread_current_frame): Use thread pointer directly.
	(record_btrace_replay_at_breakpoint): Use thread's inferior
	pointer directly.
	* record-full.c: Include "inferior.h".
	* regcache.c: Include "gdbthread.h".
	(get_thread_arch_regcache): Use the inferior's address space
	directly.
	(get_thread_regcache, registers_changed_thread): New.
	* regcache.h (get_thread_regcache(thread_info *thread)): New
	overload.
	(registers_changed_thread): New.
	(remote_target) <remote_detach_1>: Swap order of parameters.
	(remote_add_thread): <remote_add_thread>: Return the new thread.
	(get_remote_thread_info(ptid_t)): New overload.
	(remote_target::remote_notice_new_inferior): Use thread pointers
	directly.
	(remote_target::process_initial_stop_replies): Use
	thread_info::set_running.
	(remote_target::remote_detach_1, remote_target::detach)
	(extended_remote_target::detach): Adjust.
	* stack.c (frame_show_address): Use inferior_thread.
	* target-debug.h (target_debug_print_thread_info_pp): New.
	* target-delegates.c: Regenerate.
	* target.c (default_thread_address_space): Delete.
	(memory_xfer_partial_1): Use current_inferior.
	(target_detach): Use current_inferior.
	(target_thread_address_space): Delete.
	(generic_mourn_inferior): Use current_inferior.
	* target.h (struct target_ops) <thread_address_space>: Delete.
	(target_thread_address_space): Delete.
	* thread.c (init_thread_list): Use ALL_THREADS_SAFE.  Use thread
	pointers directly.
	(delete_thread_1, delete_thread, delete_thread_silent): Take a
	thread pointer instead of a ptid_t.  Adjust all callers.
	(ptid_to_global_thread_id, global_thread_id_to_ptid): Delete.
	(first_thread_of_process): Delete, replaced by ...
	(first_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(any_thread_of_process): Rename to ...
	(any_thread_of_inferior): ... this, and take an inferior pointer.
	(any_live_thread_of_process): Rename to ...
	(any_live_thread_of_inferior): ... this, and take an inferior
	pointer.
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(value_in_thread_stack_temporaries)
	(get_last_thread_stack_temporary): Take a thread pointer instead
	of a ptid_t.  Adjust all callers.
	(thread_info::set_running): New.
	(validate_registers_access): Use inferior_thread.
	(can_access_registers_ptid): Rename to ...
	(can_access_registers_thread): ... this, and take a thread
	pointer.
	(print_thread_info_1): Adjust to compare thread pointers instead
	of ptids.
	(switch_to_no_thread, switch_to_thread): Make extern.
	(scoped_restore_current_thread::~scoped_restore_current_thread):
	Use m_thread pointer directly.
	(scoped_restore_current_thread::scoped_restore_current_thread):
	Use inferior_thread.
	(thread_command): Use thread pointer directly.
	(thread_num_make_value_helper): Use inferior_thread.
	* top.c (execute_command): Use inferior_thread.
	* tui/tui-interp.c: Include "inferior.h".
	* varobj.c (varobj_create): Use inferior_thread.
	(value_of_root_1): Use find_thread_global_id instead of
	global_thread_id_to_ptid.
2018-06-21 17:09:31 +01:00
Joel Brobecker
61367c6157 (ARI) remove trailing newline in call to error in stack.c::func_command
gdb/ChangeLog:

        * stack.c (func_command): Remove trailing newline in call to error.
2018-05-30 16:43:02 -07:00
Andrew Burgess
39f0c2040f gdb: Split func_command into two parts.
The func_command function is used to emulate the dbx 'func' command.
However, finding a stack frame based on function name might be a useful
feature, and so the core of func_command is now split out into a
separate function.

gdb/ChangeLog:

	* stack.c (select_and_print_frame): Delete.
	(struct function_bounds): Move struct within function.
	(func_command): Most content moved into new function
	find_frame_for_function, use new function, print result, add
	function comment.
	(find_frame_for_function): New function, now returns a result.
2018-05-24 22:39:03 +01:00
Philippe Waroquiers
d392224a09 PATCH (obvious): Fix a comment, and pass stream to cb_data.
iterate_over_block_arg_vars is a void function, so does
not return 1 or 0.
print_frame_arg_vars tells it prints on STREAM,
so pass STREAM in the cb_data, not gdb_stdout.

gdb/ChangeLog

2018-05-24  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* stack.c (iterate_over_block_arg_vars): Fix comment.
	(print_frame_arg_vars): Pass stream in cb_data, not gdb_stdout.
2018-05-24 23:19:05 +02:00