Commit Graph

1590 Commits

Author SHA1 Message Date
Yao Qi
f5a29eb0a6 Clean up x86 non-linux GDBserver target descriptions
In GDBserver, only tdesc_i386 and tdesc_amd64 are used.  There is no point
of generating these *.dat files (which are used to generate *.c files during
GDBserver build.).

gdb:

2017-08-09  Yao Qi  <yao.qi@linaro.org>

	* features/Makefile (WHICH): Remove i386/ non-linux stuff.
	* regformats/i386/amd64-avx-avx512.dat: Remove.
	* regformats/i386/amd64-avx-mpx-avx512-pku.dat: Remove.
	* regformats/i386/amd64-avx-mpx.dat:Remove.
	* regformats/i386/amd64-avx.dat: Remove.
	* regformats/i386/amd64-mpx.dat: Remove.
	* regformats/i386/i386-avx-avx512.dat: Remove.
	* regformats/i386/i386-avx-mpx-avx512-pku.dat: Remove.
	* regformats/i386/i386-avx-mpx.dat: Remove.
	* regformats/i386/i386-mmx.dat: Remove.
	* regformats/i386/i386-mpx.dat: Remove.

gdb/gdbserver:

2017-08-09  Yao Qi  <yao.qi@linaro.org>

	* configure.srv (srv_i386_regobj): Remove i386-avx.o,
	i386-avx-avx512.o, i386-avx-mpx-avx512-pku.o, i386-mpx.o,
	i386-avx-mpx.o and i386-mmx.o.
	(srv_amd64_regobj): Remove amd64-avx.o, amd64-avx-avx512.o,
	amd64-avx-mpx-avx512-pku.o, amd64-mpx.o and amd64-avx-mpx.o.
	(srv_i386_xmlfiles): Remove i386/i386-avx.xml,
	i386/i386-avx-avx512.xml, i386/i386-avx-mpx-avx512-pku.xml,
	i386/i386-mpx.xml, i386/i386-avx-mpx.xml and i386/i386-mmx.xml.
	(srv_amd64_xmlfile):i386/amd64-avx.xml, i386/amd64-avx-avx512.xml,
	i386/amd64-avx-mpx-avx512-pku.xml, i386/amd64-mpx.xml,
	i386/amd64-avx-mpx.xml.
2017-08-09 12:29:21 +01:00
Yao Qi
57757c2f09 Remove x32 non-linux target descriptions
x32 non-linux target descriptions are not used in GDB or GDBserver.  This
patch removes them.

gdb:

2017-08-09  Yao Qi  <yao.qi@linaro.org>

	* amd64-tdep.h (tdesc_x32): Remove the declaration.
	* amd64-tdep.c: Don't include features/i386/x32*.c.
	(_initialize_amd64_tdep): Don't call initialize_tdesc_x32*
	functions.
	* features/Makefile (WHICH): Remove i386/x32, i386/x32-avx,
	and i386/x32-avx-avx512.
	(XMLTOC): Remove i386/x32-avx.xml, i386/x32-avx-avx512.xml,
	and i386/x32.xml.
	* features/i386/x32-avx-avx512.c: Removed.
	* features/i386/x32-avx-avx512.xml: Removed.
	* features/i386/x32-avx.c: Removed.
	* features/i386/x32-avx.xml: Removed.
	* features/i386/x32.c: Removed.
	* features/i386/x32.xml: Removed.
	* regformats/i386/x32-avx-avx512.dat: Removed.
	* regformats/i386/x32-avx.dat: Removed.
	* regformats/i386/x32.dat: Removed.

gdb/gdbserver:

2017-08-09  Yao Qi  <yao.qi@linaro.org>

	* configure.srv (srv_amd64_regobj): Remove x32.o, x32-avx.o
	and x32-avx-avx512.o.
	(srv_amd64_xmlfiles): Remove i386/x32.xml, i386/x32-avx.xml
	i386/x32-avx-avx512.xml.
2017-08-09 12:28:59 +01:00
Yao Qi
f02fd7745d Unbreak GDBserver build for x32
When I verify my target description changes, I build GDB and GDBserver for
x32, but it failed.

/../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c: In function ‘const target_desc* get_ipa_tdesc(int)’:
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:184:10: error: ‘X86_TDESC_AVX512’ was not declared in this scope
     case X86_TDESC_AVX512:
          ^
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:185:14: error: ‘tdesc_x32_avx512_linux’ was not declared in this scope
       return tdesc_x32_avx512_linux;
              ^
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c: In function ‘void initialize_low_tracepoint()’:
../../../binutils-gdb/gdb/gdbserver/linux-amd64-ipa.c:282:36: error: ‘init_registers_x32_avx512_linux’ was not declared in this scope
   init_registers_x32_avx512_linux ();
                                    ^

ipa_x32_linux_regobj use to be there, but removed by
22049425ce by mistake.

gdb/gdbserver:

2017-08-04  Yao Qi  <yao.qi@linaro.org>

	* configure.srv (ipa_x32_linux_regobj): New.
	* linux-amd64-ipa.c (get_ipa_tdesc): Use X86_TDESC_AVX_AVX512
	instead of X86_TDESC_AVX512.
	(initialize_low_tracepoint): Call
	init_registers_x32_avx_avx512_linux.
2017-08-04 16:06:01 +01:00
Simon Marchi
229d26fc9e Add enum for result of fast_tracepoint_collecting
I got confused by the result value of fast_tracepoint_collecting, while
it sounds like it would return true/false (whether the thread is
collecting or not), it actually returns:

  0: not collecting
  1: in the jump pad, before the relocated instruction
  2: in the jump pad, at or after the relocated instruction

To avoid confusion, I think it would be nice to make it return an enum.
If you can help find a shorter but still relavant name, it would be
awesome.  Otherwise, we'll go with that, fast_tpoint_collect_result,
which is at least consistent with the existing
fast_tpoint_collect_status.

gdb/gdbserver/ChangeLog:

	* tracepoint.h (enum class fast_tpoint_collect_result): New
	enumeration.
	(fast_tracepoint_collecting): Change return type to
	fast_tpoint_collect_result.
	* tracepoint.c (fast_tracepoint_collecting): Likewise.
	* linux-low.h: Include tracepoint.h.
	(struct lwp_info) <collecting_fast_tracepoint>: Change type to
	fast_tpoint_collect_result.
	* linux-low.c (handle_tracepoints): Adjust.
	(linux_fast_tracepoint_collecting): Change return type to
	fast_tpoint_collect_result.
	(maybe_move_out_of_jump_pad, linux_wait_for_event_filtered,
	linux_wait_1, stuck_in_jump_pad_callback,
	lwp_signal_can_be_delivered, linux_resume_one_lwp_throw,
	proceed_one_lwp): Adjust to type change.
2017-07-26 10:57:07 +02:00
Yao Qi
2e1e43e140 Re-indent the code
gdb/gdbserver:

2017-07-10  Yao Qi  <yao.qi@linaro.org>

	* linux-x86-low.c (x86_linux_read_description): Re-indent the code.
2017-07-10 11:53:44 +01:00
Yao Qi
adc764e7d2 Use target_desc fields expedite_regs and xmltarget ifndef IN_PROCESS_AGENT
struct target_desc is used by both GDBserver and IPA, but fields
expedite_regs and xmltarget are only used in GDBserver, so this patch wraps
these two fields by ifndef IN_PROCESS_AGENT.  This patch also changes
regformats/regdat.sh to generate .c files in this way too.

gdb/gdbserver:

2017-06-29  Yao Qi  <yao.qi@linaro.org>

	* tdesc.h (struct target_desc) [IN_PROCESS_AGENT] <expedite_regs>:
	Remove.
	[IN_PROCESS_AGENT] <xmltarget>: Likewise.

gdb:

2017-06-29  Yao Qi  <yao.qi@linaro.org>

	* regformats/regdat.sh: Generate code with
	"ifndef IN_PROCESS_AGENT".
2017-06-29 12:41:50 +01:00
Simon Marchi
a206891ad1 gdbserver/Makefile.in: Sort IPA_OBJS
gdb/gdbserver/ChangeLog:

	* Makefile.in (IPA_OBJS): Sort and format one item per line.
2017-06-20 16:59:03 +02:00
Sergio Durigan Junior
9a6c7d9c02 C++ify gdb/common/environ.c
As part of the preparation necessary for my upcoming task, I'd like to
propose that we turn gdb_environ into a class.  The approach taken
here is simple: the class gdb_environ contains everything that is
needed to manipulate the environment variables.  These variables are
stored in an std::vector<char *>, which can be converted to a 'char
**' and passed as argument to functions that need it.

The usage has not changed much.  As per Pedro's suggestion, this class
uses a static factory method initialization.  This means that when an
instance is created, it is initially empty.  When needed, it has to be
initialized using the static method 'from_host_environ'.

As mentioned before, this is a preparation for an upcoming work that I
will be posting in the next few weeks or so.  For that work, I'll
probably create another data structure that will contain all the
environment variables that were set by the user using the 'set
environment' command, because I'll need access to them.  This will be
much easier with the class-ification of gdb_environ.

As noted, this has been regression-tested with the new version of
environ.exp and no regressions were found.

gdb/ChangeLog:
2017-06-20  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
	'unittests/environ-selftests.c'.
	(SUBDIR_UNITTESTS_OBS): Add 'environ-selftests.o'.
	* charset.c (find_charset_names): Declare object 'iconv_env'.
	Update code to use 'iconv_env' object.  Remove call to
	'free_environ'.
	* common/environ.c: Include <utility>.
	(make_environ): Delete function.
	(free_environ): Delete function.
	(gdb_environ::clear): New function.
	(gdb_environ::operator=): New function.
	(gdb_environ::get): Likewise.
	(environ_vector): Delete function.
	(set_in_environ): Delete function.
	(gdb_environ::set): New function.
	(unset_in_environ): Delete function.
	(gdb_environ::unset): New function.
	(gdb_environ::envp): Likewise.
	* common/environ.h: Include <vector>.
	(struct gdb_environ): Delete; transform into...
	(class gdb_environ): ... this class.
	(free_environ): Delete prototype.
	(init_environ, get_in_environ, set_in_environ, unset_in_environ,
	environ_vector): Likewise.
	* infcmd.c (run_command_1): Update code to call
	'envp' from 'gdb_environ' class.
	(environment_info): Update code to call methods from 'gdb_environ'
	class.
	(unset_environment_command): Likewise.
	(path_info): Likewise.
	(path_command): Likewise.
	* inferior.c (inferior::~inferior): Delete call to 'free_environ'.
	(inferior::inferior): Initialize 'environment' using the host's
	information.
	* inferior.h: Remove forward declaration of 'struct gdb_environ'.
	Include "environ.h".
	(class inferior) <environment>: Change type from 'struct
	gdb_environ' to 'gdb_environ'.
	* mi/mi-cmd-env.c (mi_cmd_env_path): Update code to call
	methods from 'gdb_environ' class.
	* solib.c (solib_find_1): Likewise
	* unittests/environ-selftests.c: New file.

gdb/gdbserver/ChangeLog:
2017-06-20  Sergio Durigan Junior  <sergiodj@redhat.com>

	* linux-low.c (linux_create_inferior): Adjust code to access the
	environment information via 'gdb_environ' class.
	* lynx-low.c (lynx_create_inferior): Likewise.
	* server.c (our_environ): Make it an instance of 'gdb_environ'.
	(get_environ): Return a pointer to 'our_environ'.
	(captured_main): Initialize 'our_environ'.
	* server.h (get_environ): Adjust prototype.
	* spu-low.c (spu_create_inferior): Adjust code to access the
	environment information via 'gdb_environ' class.
2017-06-20 08:59:27 -04:00
Simon Marchi
ae3e2ccfe7 linux-low: Remove usage of "register" keyword
AFAIK, the register keyword is not relevant today, and clang complains
about it:

/home/emaisin/src/binutils-gdb/gdb/gdbserver/linux-low.c:5873:3: error: 'register' storage class specifier is deprecated and incompatible with C++1z
      [-Werror,-Wdeprecated-register]
  register PTRACE_XFER_TYPE *buffer;
  ^~~~~~~~~

I think we can safely remove it.

gdb/gdbserver/ChangeLog:

	* linux-low.c (linux_read_memory, linux_write_memory): Remove
	usage of "register" keyword.
2017-06-17 23:19:09 +02:00
Simon Marchi
8465943af6 gdb: Add -Wno-mismatched-tags
clang complains that for some types, we use both the class and struct
keywords in different places.  It's not really a problem, so I think we
can safely turn this warning off.

gdb/ChangeLog:

	* configure: Re-generate.
	* warning.m4 (build_warnings): Add -Wno-mismatched-tags.

gdb/gdbserver/ChangeLog:

	* configure: Re-generate.
2017-06-17 23:18:49 +02:00
Simon Marchi
3e019bdc20 gdb: Use -Werror when checking for (un)supported warning flags
In warning.m4, we pass all the warning flags one by one to the compiler
to test if they are supported by this particular compiler.  If the
compiler exits with an error, we conclude that this warning flag is not
supported and exclude it.  This allows us to use warning flags without
having to worry about which versions of which compilers support each
flag.

clang, by default, only emits a warning if an unknown flag is passed:

  warning: unknown warning option '-Wfoo' [-Wunknown-warning-option]

The result is that we think that all the warning flags we use are
supported by clang (they are not), and the compilation fails later when
building with -Werror, since the aforementioned warning becomes an
error.  The fix is to also pass -Werror when probing for supported
flags, then we'll correctly get an error when using an unknown warning,
and we'll exclude it:

  error: unknown warning option '-Wfoo' [-Werror,-Wunknown-warning-option]

I am not sure why there is a change in a random comment in
gdbserver/configure, but I suppose it's a leftfover from a previous
patch, so I included it.

gdb/ChangeLog:

	* configure: Re-generate.
	* warning.m4: Pass -Werror to compiler when checking for
	supported warning flags.

gdb/gdbserver/ChangeLog:

	* configure: Re-generate.
2017-06-17 23:18:20 +02:00
Simon Marchi
cf0dd6f02c gdb: Pass -x c++ to the compiler
Because we are compiling .c files containing C++ code, clang++ complains
with:

  clang: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated

If renaming all the source files to .cpp is out of the question, an
alternative is to pass "-x c++" to convince the compiler that we are
really compiling C++.  It works fine with GCC too.

gdb/ChangeLog:

	* Makefile.in (COMPILE.pre): Add "-x c++".

gdb/gdbserver/ChangeLog:

	* Makefile.in (COMPILE.pre): Add "-x c++".
2017-06-17 23:17:00 +02:00
Sergio Durigan Junior
9845682bda Include <signal.h> on gdbserver/fork-child.c (and fix regressions)
Hi,

This is another obvious patch that fixes a thinko from my previous
startup-with-shell series.  We should conditionally include <signal.h>
on gdb/gdbserver/fork-child.c because gdbserver will be putting the
inferior's terminal on the correct mode after the call to
fork_inferior, and for that it needs to ignore SIGTTOU.

This patch fixes a bunch of regressions happening on AArch64 that were
reported by Yao.

gdb/gdbserver/ChangeLog:
2017-06-09  Sergio Durigan Junior  <sergiodj@redhat.com>

	* fork-child.c: Conditionally include <signal.h>.
2017-06-09 18:16:19 -04:00
Sergio Durigan Junior
aefd8b33d9 Implement proper "startup-with-shell" support on gdbserver
This patch implements the proper support for the "startup-with-shell"
feature on gdbserver.  A new packet is added, QStartupWithShell, and
it is sent on initialization.  If the host sends a
"QStartupWithShell:1", it means the inferior shall be started using a
shell.  If the host sends a "QStartupWithShell:0", it means the
inferior shall be started without using a shell.  Any other value is
considered an error.

There is no way to remotely set the shell that will be used by the
target to start the inferior.  In order to do that, the user must
start gdbserver while providing a shell via the $SHELL environment
variable.  The same is true for the host side.

The "set startup-with-shell" setting from the host side is used to
decide whether to start the remote inferior using a shell.  This same
setting is also used to decide whether to use a shell to start the
host inferior; this means that it is not really possible to start the
inferior using different mechanisms on target and host.

A documentation patch is included, along with a new testcase for the
feature.

gdb/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* NEWS (Changes since GDB 8.0): Announce that GDBserver is now
	able to start inferiors	using a shell.
	(New remote packets): Announce new packet "QStartupWithShell".
	* remote.c: Add PACKET_QStartupWithShell.
	(extended_remote_create_inferior): Handle new
	PACKET_QStartupWithShell.
	(remote_protocol_features) <QStartupWithShell>: New entry for
	PACKET_QStartupWithShell.
	(_initialize_remote): Call "add_packet_config_cmd" for
	QStartupShell.

gdb/gdbserver/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* server.c (handle_general_set): Handle new packet
	"QStartupWithShell".
	(handle_query): Add "QStartupWithShell" to the list of supported
	packets.
	(gdbserver_usage): Add help text explaining the
	new "--startup-with-shell" and "--no-startup-with-shell" CLI
	options.
	(captured_main): Recognize and act upon the presence of the new
	CLI options.

gdb/testsuite/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* gdb.base/startup-with-shell.c: New file.
	* gdb.base/startup-with-shell.exp: Likewise.

gdb/doc/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* gdb.texinfo (Starting) <startup-with-shell>: Add @anchor.
	(Connecting) <Remote Packet>: Add "startup-with-shell"
	and "QStartupWithShell" to the table.
	(Remote Protocol) <QStartupWithShell>: New item, explaining the
	packet.
2017-06-07 19:56:09 -04:00
Sergio Durigan Junior
2090129c36 Share fork_inferior et al with gdbserver
This is the most important (and the biggest, sorry) patch of the
series.  It moves fork_inferior from gdb/fork-child.c to
nat/fork-inferior.c and makes all the necessary adjustments to both
GDB and gdbserver to make sure everything works OK.

There is no "most important change" with this patch; all changes are
made in a progressive way, making sure that gdbserver had the
necessary features while not breaking GDB at the same time.

I decided to go ahead and implement a partial support for starting the
inferior with a shell on gdbserver, although the full feature comes in
the next patch.  The user won't have the option to disable the
startup-with-shell, and also won't be able to change which shell
gdbserver will use (other than setting the $SHELL environment
variable, that is).

Everything is working as expected, and no regressions were present
during the tests.

gdb/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>
	    Pedro Alves  <palves@redhat.com>

	* Makefile.in (HFILES_NO_SRCDIR): Add "common/common-inferior.h"
	and "nat/fork-inferior.h".
	* common/common-inferior.h: New file, with contents from
	"gdb/inferior.h".
	* commom/common-utils.c: Include "common-utils.h".
	(stringify_argv): New function.
	* common/common-utils.h (stringify_argv): New prototype.
	* configure.nat: Add "fork-inferior.o" as a dependency for
	"*linux*", "fbsd*" and "nbsd*" hosts.
	* corefile.c (get_exec_file): Update comment.
	* darwin-nat.c (darwin_ptrace_him): Call "gdb_startup_inferior"
	instead of "startup_inferior".
	(darwin_create_inferior): Call "add_thread_silent" after
	"fork_inferior".
	* fork-child.c: Cleanup unnecessary includes.
	(SHELL_FILE): Move to "common/common-fork-child.c".
	(environ): Likewise.
	(exec_wrapper): Initialize.
	(get_exec_wrapper): New function.
	(breakup_args): Move to "common/common-fork-child.c"; rename to
	"breakup_args_for_exec".
	(escape_bang_in_quoted_argument): Move to
	"common/common-fork-child.c".
	(saved_ui): New variable.
	(prefork_hook): New function.
	(postfork_hook): Likewise.
	(postfork_child_hook): Likewise.
	(gdb_startup_inferior): Likewise.
	(fork_inferior): Move to "common/common-fork-child.c".  Update
	function to support gdbserver.
	(startup_inferior): Likewise.
	* gdbcore.h (get_exec_file): Remove declaration.
	* gnu-nat.c (gnu_create_inferior): Call "gdb_startup_inferior"
	instead of "startup_inferior".  Call "add_thread_silent" after
	"fork_inferior".
	* inf-ptrace.c: Include "nat/fork-inferior.h" and "utils.h".
	(inf_ptrace_create_inferior): Call "gdb_startup_inferior"
	instead of "startup_inferior".  Call "add_thread_silent" after
	"fork_inferior".
	* inferior.h: Include "common-inferior.h".
	(trace_start_error): Move to "common/common-utils.h".
	(trace_start_error_with_name): Likewise.
	(fork_inferior): Move prototype to "nat/fork-inferior.h".
	(startup_inferior): Likewise.
	(gdb_startup_inferior): New prototype.
	* nat/fork-inferior.c: New file, with contents from "fork-child.c".
	* nat/fork-inferior.h: New file.
	* procfs.c (procfs_init_inferior): Call "gdb_startup_inferior"
	instead of "startup_inferior".  Call "add_thread_silent" after
	"fork_inferior".
	* target.h (target_terminal_init): Move prototype to
	"target/target.h".
	(target_terminal_inferior): Likewise.
	(target_terminal_ours): Likewise.
	* target/target.h (target_terminal_init): New prototype, moved
	from "target.h".
	(target_terminal_inferior): Likewise.
	(target_terminal_ours): Likewise.
	* utils.c (gdb_flush_out_err): New function.

gdb/gdbserver/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>
	    Pedro Alves  <palves@redhat.com>

	* Makefile.in (SFILES): Add "nat/fork-inferior.o".
	* configure: Regenerate.
	* configure.srv (srv_linux_obj): Add "fork-child.o" and
	"fork-inferior.o".
	(i[34567]86-*-lynxos*): Likewise.
	(spu*-*-*): Likewise.
	* fork-child.c: New file.
	* linux-low.c: Include "common-inferior.h", "nat/fork-inferior.h"
	and "environ.h".
	(linux_ptrace_fun): New function.
	(linux_create_inferior): Adjust function prototype to reflect
	change on "target.h".  Adjust function code to use
	"fork_inferior".
	(linux_request_interrupt): Delete "signal_pid".
	* lynx-low.c: Include "common-inferior.h" and "nat/fork-inferior.h".
	(lynx_ptrace_fun): New function.
	(lynx_create_inferior): Adjust function prototype to reflect
	change on "target.h".  Adjust function code to use
	"fork_inferior".
	* nto-low.c (nto_create_inferior): Adjust function prototype and
	code to reflect change on "target.h".  Update comments.
	* server.c: Include "common-inferior.h", "nat/fork-inferior.h",
	"common-terminal.h" and "environ.h".
	(terminal_fd): Moved to fork-child.c.
	(old_foreground_pgrp): Likewise.
	(restore_old_foreground_pgrp): Likewise.
	(last_status): Make it global.
	(last_ptid): Likewise.
	(our_environ): New variable.
	(startup_with_shell): Likewise.
	(program_name): Likewise.
	(program_argv): Rename to...
	(program_args): ...this.
	(wrapper_argv): New variable.
	(start_inferior): Delete function.
	(get_exec_wrapper): New function.
	(get_exec_file): Likewise.
	(get_environ): Likewise.
	(prefork_hook): Likewise.
	(post_fork_inferior): Likewise.
	(postfork_hook): Likewise.
	(postfork_child_hook): Likewise.
	(handle_v_run): Update code to deal with arguments coming from the
	remote host.  Update calls from "start_inferior" to
	"create_inferior".
	(captured_main): Likewise.  Initialize environment variable.  Call
	"have_job_control".
	* server.h (post_fork_inferior): New prototype.
	(get_environ): Likewise.
	(last_status): Declare.
	(last_ptid): Likewise.
	(signal_pid): Likewise.
	* spu-low.c: Include "common-inferior.h" and "nat/fork-inferior.h".
	(spu_ptrace_fun): New function.
	(spu_create_inferior): Adjust function prototype to reflect change
	on "target.h".  Adjust function code to use "fork_inferior".
	* target.c (target_terminal_init): New function.
	(target_terminal_inferior): Likewise.
	(target_terminal_ours): Likewise.
	* target.h: Include <vector>.
	(struct target_ops) <create_inferior>: Update prototype.
	(create_inferior): Update macro.
	* utils.c (gdb_flush_out_err): New function.
	* win32-low.c (win32_create_inferior): Adjust function prototype
	and code to reflect change on "target.h".

gdb/testsuite/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* gdb.server/non-existing-program.exp: Update regex in order to
	reflect the fact that gdbserver is now using fork_inferior (with a
	shell) to startup the inferior.
2017-06-07 19:56:09 -04:00
Sergio Durigan Junior
043a49349c Share parts of gdb/gdbthread.h with gdbserver
GDB and gdbserver now share 'switch_to_thread' because of
fork_inferior.  To make things clear, I created a new file name
common/common-gdbthread.h, and left the implementation specific to
each part.

gdb/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (HFILES_NO_SRCDIR): Add "common/common-gdbthread.h".
	* common/common-gdbthread.h: New file, with parts from
	"gdb/gdbthread.h".
	* gdbthread.h: Include "common-gdbthread.h".
	(switch_to_thread): Moved to "common/common-gdbthread.h".

gdb/gdbserver/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* inferiors.c (switch_to_thread): New function.
2017-06-07 19:56:01 -04:00
Sergio Durigan Junior
156525114c Move parts of inferior job control to common/
This commit moves a few bits responsible for dealing with inferior job
control from GDB to common/, which makes them available to gdbserver.
This is necessary for the upcoming patches that will share
fork_inferior et al between GDB and gdbserver.

We move some parts of gdb/terminal.h to gdb/common/common-terminal.h,
especifically the code that checks terminal features and that are used
to set job_control accordingly.

After sharing parts of gdb/terminal.h, we also to share the two
functions on gdb/inflow.c that are going to be needed by the
fork_inferior rework.  They are 'gdb_setpgid' and the new
'have_job_control'.  I've also taken the opportunity to give a more
meaningful name to "inflow.c" on common/.  Now it is called
"job-control.c" (thanks Pedro for the suggestion).

gdb/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Add "common/job-control.c".
	(HFILES_NO_SRCDIR): Add "common/job-control.h".
	(COMMON_OBS): Add "job-control.o".
	* common/job-control.c: New file, with contents from
	"gdb/inflow.c".
	* common/job-control.h: New file, with contents from "terminal.h".
	* fork-child.c: Include "job-control.h".
	* inflow.c: Include "job-control.h".
	(gdb_setpgid): Move to "common/common-inflow.c".
	(_initialize_inflow): Move setting of "job_control" to
	"handle_job_control".
	* terminal.h (job_control): Moved to "common/common-terminal.h".
	(gdb_setpgid): Likewise.
	* top.c: Include "job_control.h".
	* utils.c: Likewise.
	(job_control): Moved to "job-control.c".

gdb/gdbserver/ChangeLog:
2017-06-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILE): Add "common/job-control.c".
	(OBS): Add "job-control.o".
2017-06-07 19:52:56 -04:00
Sergio Durigan Junior
21ea5acdd1 Introduce "gdb/configure.nat" (and delete "gdb/config/*/*.mh" files)
Due to my ongoing work to make it possible for gdbserver to start the
inferior using the shell, I had to share the fork_inferior function
under the "nat/" directory.  In order to do that, I created a new file
and put the function there; however, this meant that I now had to
update some of the *.mh files (under "gdb/config") and add the new
file as a dependency to be built natively.  Bleh...

After talking a bit to Pedro about this, the idea came up to write a
new "gdb/configure.nat" file, a la "gdb/configure.tgt", which would
concentrate all of the native settings for each host/system.  I
decided to tackle this issue.

The patch is simple.  All of the previous Makefile variables that were
being declared inside the *.mh files are now inside "gdb/Makefile.in",
and "gdb/configure" is responsible for AC_SUBST'ing them.  The
definitions of these variables were put inside "gdb/configure.nat", so
now they're shell variables.  For excerpts of Makefile code, one must
create a file under "gdb/config/${gdb_cpu_host}" and reference it on
the "nat_extra_makefile_frag" variable.

It should now be easier to update the native dependencies of hosts in
this single file.

This has been tested on x86_64 without regressions.

gdb/ChangeLog:
2017-05-06  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in: Remove "@host_makefile_frag@".  Add variables
	NAT_FILE, NATDEPFILES, NAT_CDEPS, LOADLIBES, MH_CFLAGS, XM_CLIBS,
	NAT_GENERATED_FILES, HAVE_NATIVE_GCORE_HOST.  Add
	"@nat_extra_makefile_frag@".
	(Makefile): Remove dependency on "@frags@".
	($(GNULIB_BUILDDIR)/Makefile): Likewise.
	(data-directory/Makefile): Likewise.
	* config/aarch64/linux.mh: Deleted; moved contents to
	"gdb/configure.nat".
	* config/alpha/alpha-linux.mh: Likewise.
	* config/alpha/nbsd.mh: Likewise.
	* config/arm/linux.mh: Likewise.
	* config/arm/nbsdelf.mh: Likewise.
	* config/i386/cygwin.mh: Likewise.
	* config/i386/cygwin64.mh: Likewise.
	* config/i386/darwin.mh: Likewise.
	* config/i386/fbsd.mh: Likewise.
	* config/i386/fbsd64.mh: Likewise.
	* config/i386/go32.mh: Likewise.
	* config/i386/i386gnu.mh: Likewise.
	* config/i386/i386sol2.mh: Likewise.
	* config/i386/linux.mh: Likewise.
	* config/i386/linux64.mh: Likewise.
	* config/i386/mingw.mh: Likewise.
	* config/i386/mingw64.mh: Likewise.
	* config/i386/nbsd64.mh: Likewise.
	* config/i386/nbsdelf.mh: Likewise.
	* config/i386/nto.mh: Likewise.
	* config/i386/obsd.mh: Likewise.
	* config/i386/obsd64.mh: Likewise.
	* config/i386/sol2-64.mh: Likewise.
	* config/ia64/linux.mh: Likewise.
	* config/m32r/linux.mh: Likewise.
	* config/m68k/linux.mh: Likewise.
	* config/m68k/nbsdelf.mh: Likewise.
	* config/m68k/obsd.mh: Likewise.
	* config/m88k/obsd.mh: Likewise.
	* config/mips/fbsd.mh: Likewise.
	* config/mips/linux.mh: Likewise.
	* config/mips/nbsd.mh: Likewise.
	* config/mips/obsd64.mh: Likewise.
	* config/pa/linux.mh: Likewise.
	* config/pa/nbsd.mh: Likewise.
	* config/pa/obsd.mh: Likewise.
	* config/powerpc/aix.mh: Likewise.
	* config/powerpc/fbsd.mh: Likewise.
	* config/powerpc/linux.mh: Likewise.
	* config/powerpc/nbsd.mh: Likewise.
	* config/powerpc/obsd.mh: Likewise.
	* config/powerpc/ppc64-linux.mh: Likewise.
	* config/powerpc/spu-linux.mh: Likewise.
	* config/s390/linux.mh: Likewise.
	* config/sh/nbsd.mh: Likewise.
	* config/sparc/fbsd.mh: Likewise.
	* config/sparc/linux.mh: Likewise.
	* config/sparc/linux64.mh: Likewise.
	* config/sparc/nbsd64.mh: Likewise.
	* config/sparc/nbsdelf.mh: Likewise.
	* config/sparc/obsd64.mh: Likewise.
	* config/sparc/sol2.mh: Likewise.
	* config/tilegx/linux.mh: Likewise.
	* config/vax/nbsdelf.mh: Likewise.
	* config/vax/obsd.mh: Likewise.
	* config/xtensa/linux.mh: Likewise.
	* config/i386/i386gnu.mn: New file, with excerpts from
	"config/i386/i386gnu.mh".
	* configure: Regenerate.
	* configure.ac: Rewrite code to use "gdb/configure.nat" instead of
	*.mh files under "gdb/config".
	* configure.nat: New file, with contents from the
	"gdb/config/*/*.mh" files.

gdb/doc/ChangeLog:
2017-05-06  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile: Remove "@host_makefile_frag@".
2017-05-06 10:09:35 -04:00
Pedro Alves
e13cb306f0 gdb: Disable -Werror for -Wmaybe-uninitialized
Newer GCCs are triggering false-positive -Wmaybe-uninitialized
warnings around code that uses gdb::optional:
  https://sourceware.org/ml/gdb-patches/2017-05/msg00118.html

Using std::optional wouldn't help, it triggers the same warnings:
  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635

Initializing the variables to quiet the warning would defeat the
purpose of gdb::optional.  Making the optional ctor memset its storage
would be a pessimization.  Wrapping gdb::optional's internals with
"#pragma GCC diagnostic push/ignored/pop" doesn't work, we'd have to
wrap uses of gdb::optional instead, which I think would get unwieldy
and ugly as we start using gdb::optional more and more.

The -Wmaybe-uninitialized warning is documented as producing false
positives (unlike -Wuninialized), so until we find a better
workaround, disable -Werror for this warning.  You'll still see the
warning when building gdb, but it won't cause a build failure.

Tested by building with gcc 4.8.5, 5.3.1, and gcc trunk (20170428).

gdb/ChangeLog:
2017-05-05  Pedro Alves  <palves@redhat.com>

	* warning.m4 (build_warnings): Add -Wno-error=maybe-uninitialized.
	* configure: Regenerate.

gdb/gdbserver/ChangeLog:
2017-05-05  Pedro Alves  <palves@redhat.com>

	* configure: Regenerate.
2017-05-05 01:03:28 +01:00
Sergio Durigan Junior
c94fee56f5 Regenerate gdb/{,gdbserver/}configure (for commit be628ab814)
On commit be628ab814, both
common/common.m4 was modified in order to check for the presence of
'termios.h', 'termio.h' and 'sgtty.h'.  However, I forgot to
regenerate both gdb/configure and gdb/gdbserver/configure.  This
commit does that.

gdb/ChangeLog:
2017-05-03  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure: Regenerate.

gdb/gdbserver/ChangeLog:
2017-05-03  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure: Regenerate.
2017-05-03 09:17:12 -04:00
Simon Marchi
a0ff9e1ad2 Change return type of gdbarch_software_single_step to vector<CORE_ADDR>
This is a relatively straightforward patch that changes
gdbarch_software_single_step so it returns an std::vector<CORE_ADDR>
instead of a VEC (CORE_ADDR).

gdb/ChangeLog:

	* gdbarch.sh (software_single_step): Change return type to
	std::vector<CORE_ADDR>.
	* gdbarch.c, gdbarch.h: Re-generate.
	* arch/arm-get-next-pcs.c (thumb_deal_with_atomic_sequence_raw):
	Adjust.
	(arm_deal_with_atomic_sequence_raw): Adjust.
	(thumb_get_next_pcs_raw): Adjust.
	(arm_get_next_pcs_raw): Adjust.
	(arm_get_next_pcs): Adjust.
	* arch/arm-get-next-pcs.h (arm_get_next_pcs): Adjust.
	* aarch64-tdep.c (aarch64_software_single_step): Adjust.
	* alpha-tdep.c (alpha_deal_with_atomic_sequence): Adjust.
	(alpha_software_single_step): Adjust.
	* alpha-tdep.h (alpha_software_single_step): Adjust.
	* arm-linux-tdep.c (arm_linux_software_single_step): Adjust.
	* arm-tdep.c (arm_software_single_step): Adjust.
	(arm_breakpoint_kind_from_current_state): Adjust.
	* arm-tdep.h (arm_software_single_step): Adjust.
	* breakpoint.c (insert_single_step_breakpoint): Adjust.
	* cris-tdep.c (cris_software_single_step): Adjust.
	* mips-tdep.c (mips_deal_with_atomic_sequence): Adjust.
	(micromips_deal_with_atomic_sequence): Adjust.
	(deal_with_atomic_sequence): Adjust.
	(mips_software_single_step): Adjust.
	* mips-tdep.h (mips_software_single_step): Adjust.
	* moxie-tdep.c (moxie_software_single_step): Adjust.
	* nios2-tdep.c (nios2_software_single_step): Adjust.
	* ppc-tdep.h (ppc_deal_with_atomic_sequence): Adjust.
	* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
	* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
	* s390-linux-tdep.c (s390_software_single_step): Adjust.
	* sparc-tdep.c (sparc_software_single_step): Adjust.
	* spu-tdep.c (spu_software_single_step): Adjust.
	* tic6x-tdep.c (tic6x_software_single_step): Adjust.

gdb/gdbserver/ChangeLog:

	* linux-arm-low.c (arm_gdbserver_get_next_pcs): Adjust to
	software_single_step change of return type to
	std::vector<CORE_ADDR>.
	* linux-low.c (install_software_single_step_breakpoints):
	Likewise.
	* linux-low.h (install_software_single_step_breakpoints):
	Likewise.
2017-05-02 13:30:07 -04:00
Sergio Durigan Junior
be628ab814 Create gdb_termios.h (and cleanup gdb/{,gdbserver/}terminal.h)
As requested, I'm sending this as a separate patch because it is ready
to be included as-is.

The idea here is that both gdb/terminal.h and gdb/gdbserver/terminal.h
share the same code, which is responsible for setting a bunch of
defines on based on the presence of termios.h and a few other headers.
This simple patch just moves this common code to common/gdb_termios.h
and makes the necessary adjustments on both GDB and gdbserver so that
they can use this new header.  It also implements the some header
checks on common/common.m4.

As a bonus, gdb/gdbserver/terminal.h can be removed because it's now
empty.

Built on x86_64, no regressions found.

gdb/ChangeLog:
2017-04-12  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (HFILES_NO_SRCDIR): Add "common/gdb_termios.h".
	* common/common.m4: Check headers 'termios.h', 'termio.h' and
	'sgtty.h'.
	* common/gdb_termios.h: New file, with parts of "terminal.h".
	* inflow.c: Include "gdb_termios.h".
	* ser-unix.c: Include "gdb_termios.h".
	* terminal.h: Move terminal-related defines to
	"common/gdb_termios.h".

gdb/gdbserver/ChangeLog:
2017-04-12  Sergio Durigan Junior  <sergiodj@redhat.com>

	* remote-utils.c: Include "gdb_termios.h" instead of
	"terminal.h".
	* terminal.h: Delete file.
2017-04-12 17:59:45 -04:00
Sergio Durigan Junior
7c5ded6a00 C++-fy and prepare for sharing fork_inferior
As a preparation for the next patch, which will move fork_inferior
from GDB to common/ (and therefore share it with gdbserver), it is
interesting to convert a few functions to C++.

This patch touches functions related to parsing command-line arguments
to the inferior (see gdb/fork-child.c:breakup_args), the way the
arguments are stored on fork_inferior (using std::vector instead of
char **), and the code responsible for dealing with argv also on
gdbserver.

I've taken this opportunity and decided to constify a few arguments to
fork_inferior/create_inferior as well, in order to make the code
cleaner.  And now, on gdbserver, we're using xstrdup everywhere and
aren't checking for memory allocation failures anymore, as requested
by Pedro:

  <https://sourceware.org/ml/gdb-patches/2017-03/msg00191.html>
  Message-Id: <025ebdb9-90d9-d54a-c055-57ed2406b812@redhat.com>

  Pedro Alves wrote:

  > On the "== NULL" check: IIUC, the old NULL check was there to
  > handle strdup returning NULL due to out-of-memory.
  > See NULL checks and comments further above in this function.
  > Now that you're using a std::vector, that doesn't work or make
  > sense any longer, since if push_back fails to allocate space for
  > its internal buffer (with operator new), our operator new replacement
  > (common/new-op.c) calls malloc_failure, which aborts gdbserver.
  >
  > Not sure it makes sense to handle out-of-memory specially in
  > the gdb/rsp-facing functions nowadays (maybe git blame/log/patch
  > submission for that code shows some guidelines).  Maybe (or, probably)
  > it's OK to stop caring about it, but then we should consistently remove
  > left over code, by using xstrdup instead and remove the NULL checks.

IMO this refactoring was very good to increase the readability of the
code as well, because some parts of the argument handling were
unnecessarily confusing before.

gdb/ChangeLog:
2017-04-12  Sergio Durigan Junior  <sergiodj@redhat.com>

	* common/common-utils.c (free_vector_argv): New function.
	* common/common-utils.h: Include <vector>.
	(free_vector_argv): New prototype.
	* darwin-nat.c (darwin_create_inferior): Rewrite function
	prototype in order to constify "exec_file" and accept a
	"std::string" for "allargs".
	* fork-child.c: Include <vector>.
	(breakup_args): Rewrite function, using C++.
	(fork_inferior): Rewrite function header, constify "exec_file_arg"
	and accept "std::string" for "allargs".  Update the code to
	calculate "argv" based on "allargs".  Update calls to "exec_fun"
	and "execvp".
	* gnu-nat.c (gnu_create_inferior): Rewrite function prototype in
	order to constify "exec_file" and accept a "std::string" for
	"allargs".
	* go32-nat.c (go32_create_inferior): Likewise.
	* inf-ptrace.c (inf_ptrace_create_inferior): Likewise.
	* infcmd.c (run_command_1): Constify "exec_file".  Use
	"std::string" for inferior arguments.
	* inferior.h (fork_inferior): Update prototype.
	* linux-nat.c (linux_nat_create_inferior): Rewrite function
	prototype in order to constify "exec_file" and accept a
	"std::string" for "allargs".
	* nto-procfs.c (procfs_create_inferior): Likewise.
	* procfs.c (procfs_create_inferior): Likewise.
	* remote-sim.c (gdbsim_create_inferior): Likewise.
	* remote.c (extended_remote_run): Update code to accept
	"std::string" as argument.
	(extended_remote_create_inferior): Rewrite function prototype in
	order to constify "exec_file" and accept a "std::string" for
	"allargs".
	* rs6000-nat.c (super_create_inferior): Likewise.
	(rs6000_create_inferior): Likewise.
	* target.h (struct target_ops) <to_create_inferior>: Likewise.
	* windows-nat.c (windows_create_inferior): Likewise.

gdb/gdbserver/ChangeLog:
2017-04-12  Sergio Durigan Junior  <sergiodj@redhat.com>

	* server.c: Include <vector>.
	<program_argv, wrapper_argv>: Convert to std::vector.
	(start_inferior): Rewrite function to use C++.
	(handle_v_run): Likewise.  Update code that calculates the argv
	based on the vRun packet; use C++.
	(captured_main): Likewise.
2017-04-12 01:02:03 -04:00
Simon Marchi
436252de3e Class-ify ptid_t
I grew a bit tired of using ptid_get_{lwp,pid,tid} and friends, so I decided to
make it a bit easier to use by making it a proper class.  The fields are now
private, so it's not possible to change a ptid_t field by mistake.

The new methods of ptid_t map to existing functions/practice like this:

  ptid_t (pid, lwp, tid) -> ptid_build (pid, lwp, tid)
  ptid_t (pid) -> pid_to_ptid (pid)
  ptid.is_pid () -> ptid_is_pid (ptid)
  ptid == other -> ptid_equal (ptid, other)
  ptid != other -> !ptid_equal (ptid, other)
  ptid.pid () -> ptid_get_pid (ptid)
  ptid.lwp_p () -> ptid_lwp_p (ptid)
  ptid.lwp () -> ptid_get_lwp (ptid)
  ptid.tid_p () -> ptid_tid_p (ptid)
  ptid.tid () -> ptid_get_tid (ptid)
  ptid.matches (filter) -> ptid_match (ptid, filter)

I've replaced the implementation of the existing functions with calls to
the new methods.  People are encouraged to gradually switch to using the
ptid_t methods instead of the functions (or we can change them all in
one pass eventually).

Also, I'm not sure if it's worth it (because of ptid_t's relatively
small size), but I have made the functions and methods take ptid_t
arguments by const reference instead of by value.

gdb/ChangeLog:

	* common/ptid.h (struct ptid): Change to...
	(class ptid_t): ... this.
	<ptid_t>: New constructors.
	<pid, lwp_p, lwp, tid_p, tid, is_pid, operator==, operator!=,
	matches>: New methods.
	<make_null, make_minus_one>: New static methods.
	<pid>: Rename to...
	<m_pid>: ...this.
	<lwp>: Rename to...
	<m_lwp>: ...this.
	<tid>: Rename to...
	<m_tid>: ...this.
	(ptid_build, ptid_get_pid, ptid_get_lwp, ptid_get_tid, ptid_equal,
	ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match): Take ptid arguments
	as references, move comment to class ptid_t.
	* common/ptid.c (null_ptid, minus_one_ptid): Initialize with
	ptid_t static methods.
	(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_tid,
	ptid_equal, ptid_is_pid, ptid_lwp_p, ptid_tid_p, ptid_match):
	Take ptid arguments as references, implement using ptid_t methods.
	* unittests/ptid-selftests.c: New file.
	* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add
	unittests/ptid-selftests.c.
	(SUBDIR_UNITTESTS_OBS): Add unittests/ptid-selftests.o.

gdb/gdbserver/ChangeLog:

	* server.c (handle_v_cont): Initialize thread_resume::thread
	with null_ptid.
2017-04-06 23:29:53 -04:00
Pedro Alves
9bf2a70066 -Wwrite-strings: Remove -Wno-write-strings
AFAIK GDB is now free from -Wwrite-strings warnings.  A few warnings may
be left behind in some host-specific code, but those should be few and
easy to fix.

gdb/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* warning.m4 (build_warnings): Remove -Wno-write-strings.
	* configure: Regenerate.

gdb/gdbserver/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* configure: Regenerate.
2017-04-05 19:21:37 +01:00
Pedro Alves
a121b7c1ac -Wwrite-strings: The Rest
This is the remainder boring constification that all looks more of less
borderline obvious IMO.

gdb/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* ada-exp.y (yyerror): Constify.
	* ada-lang.c (bound_name, get_selections)
	(ada_variant_discrim_type)
	(ada_variant_discrim_name, ada_value_struct_elt)
	(ada_lookup_struct_elt_type, is_unchecked_variant)
	(ada_which_variant_applies, standard_exc, ada_get_next_arg)
	(catch_ada_exception_command_split)
	(catch_ada_assert_command_split, catch_assert_command)
	(ada_op_name): Constify.
	* ada-lang.h (ada_yyerror, get_selections)
	(ada_variant_discrim_name, ada_value_struct_elt): Constify.
	* arc-tdep.c (arc_print_frame_cache): Constify.
	* arm-tdep.c (arm_skip_stub): Constify.
	* ax-gdb.c (gen_binop, gen_struct_ref_recursive, gen_struct_ref)
	(gen_aggregate_elt_ref): Constify.
	* bcache.c (print_bcache_statistics): Constify.
	* bcache.h (print_bcache_statistics): Constify.
	* break-catch-throw.c (catch_exception_command_1):
	* breakpoint.c (struct ep_type_description::description):
	Constify.
	(add_solib_catchpoint): Constify.
	(catch_fork_command_1): Add cast.
	(add_catch_command): Constify.
	* breakpoint.h (add_catch_command, add_solib_catchpoint):
	Constify.
	* bsd-uthread.c (bsd_uthread_state): Constify.
	* buildsym.c (patch_subfile_names): Constify.
	* buildsym.h (next_symbol_text_func, patch_subfile_names):
	Constify.
	* c-exp.y (yyerror): Constify.
	(token::oper): Constify.
	* c-lang.h (c_yyerror, cp_print_class_member): Constify.
	* c-varobj.c (cplus_describe_child): Constify.
	* charset.c (find_charset_names): Add cast.
	(find_charset_names): Constify array and add const_cast.
	* cli/cli-cmds.c (complete_command, cd_command): Constify.
	(edit_command): Constify.
	* cli/cli-decode.c (lookup_cmd): Constify.
	* cli/cli-dump.c (dump_memory_command, dump_value_command):
	Constify.
	(struct dump_context): Constify.
	(add_dump_command, restore_command): Constify.
	* cli/cli-script.c (get_command_line): Constify.
	* cli/cli-script.h (get_command_line): Constify.
	* cli/cli-utils.c (check_for_argument): Constify.
	* cli/cli-utils.h (check_for_argument): Constify.
	* coff-pe-read.c (struct read_pe_section_data): Constify.
	* command.h (lookup_cmd): Constify.
	* common/print-utils.c (decimal2str): Constify.
	* completer.c (gdb_print_filename): Constify.
	* corefile.c (set_gnutarget): Constify.
	* cp-name-parser.y (yyerror): Constify.
	* cp-valprint.c (cp_print_class_member): Constify.
	* cris-tdep.c (cris_register_name, crisv32_register_name):
	Constify.
	* d-exp.y (yyerror): Constify.
	(struct token::oper): Constify.
	* d-lang.h (d_yyerror): Constify.
	* dbxread.c (struct header_file_location::name): Constify.
	(add_old_header_file, add_new_header_file, last_function_name)
	(dbx_next_symbol_text, add_bincl_to_list)
	(find_corresponding_bincl_psymtab, set_namestring)
	(find_stab_function_addr, read_dbx_symtab, start_psymtab)
	(dbx_end_psymtab, read_ofile_symtab, process_one_symbol):
	* defs.h (command_line_input, print_address_symbolic)
	(deprecated_readline_begin_hook): Constify.
	* dwarf2read.c (anonymous_struct_prefix, dwarf_bool_name):
	Constify.
	* event-top.c (handle_line_of_input): Constify and add cast.
	* exceptions.c (catch_errors): Constify.
	* exceptions.h (catch_errors): Constify.
	* expprint.c (print_subexp_standard, op_string, op_name)
	(op_name_standard, dump_raw_expression, dump_raw_expression):
	* expression.h (op_name, op_string, dump_raw_expression):
	Constify.
	* f-exp.y (yyerror): Constify.
	(struct token::oper): Constify.
	(struct f77_boolean_val::name): Constify.
	* f-lang.c (f_word_break_characters): Constify.
	* f-lang.h (f_yyerror): Constify.
	* fork-child.c (fork_inferior): Add cast.
	* frv-tdep.c (struct gdbarch_tdep::register_names): Constify.
	(new_variant): Constify.
	* gdbarch.sh (pstring_ptr, pstring_list): Constify.
	* gdbarch.c: Regenerate.
	* gdbcore.h (set_gnutarget): Constify.
	* go-exp.y (yyerror): Constify.
	(token::oper): Constify.
	* go-lang.h (go_yyerror): Constify.
	* go32-nat.c (go32_sysinfo): Constify.
	* guile/scm-breakpoint.c (gdbscm_breakpoint_expression): Constify.
	* guile/scm-cmd.c (cmdscm_function): Constify.
	* guile/scm-param.c (pascm_param_value): Constify.
	* h8300-tdep.c (h8300_register_name, h8300s_register_name)
	(h8300sx_register_name): Constify.
	* hppa-tdep.c (hppa32_register_name, hppa64_register_name):
	Constify.
	* ia64-tdep.c (ia64_register_names): Constify.
	* infcmd.c (construct_inferior_arguments): Constify.
	(path_command, attach_post_wait): Constify.
	* language.c (show_range_command, show_case_command)
	(unk_lang_error): Constify.
	* language.h (language_defn::la_error)
	(language_defn::la_name_of_this): Constify.
	* linespec.c (decode_line_2): Constify.
	* linux-thread-db.c (thread_db_err_str): Constify.
	* lm32-tdep.c (lm32_register_name): Constify.
	* m2-exp.y (yyerror): Constify.
	* m2-lang.h (m2_yyerror): Constify.
	* m32r-tdep.c (m32r_register_names): Constify and make static.
	* m68hc11-tdep.c (m68hc11_register_names): Constify.
	* m88k-tdep.c (m88k_register_name): Constify.
	* macroexp.c (appendmem): Constify.
	* mdebugread.c (fdr_name, add_data_symbol, parse_type)
	(upgrade_type, parse_external, parse_partial_symbols)
	(mdebug_next_symbol_text, cross_ref, mylookup_symbol, new_psymtab)
	(new_symbol): Constify.
	* memattr.c (mem_info_command): Constify.
	* mep-tdep.c (register_name_from_keyword): Constify.
	* mi/mi-cmd-env.c (mi_cmd_env_path, _initialize_mi_cmd_env):
	Constify.
	* mi/mi-cmd-stack.c (list_args_or_locals): Constify.
	* mi/mi-cmd-var.c (mi_cmd_var_show_attributes): Constify.
	* mi/mi-main.c (captured_mi_execute_command): Constify and add
	cast.
	(mi_execute_async_cli_command): Constify.
	* mips-tdep.c (mips_register_name): Constify.
	* mn10300-tdep.c (register_name, mn10300_generic_register_name)
	(am33_register_name, am33_2_register_name)
	* moxie-tdep.c (moxie_register_names): Constify.
	* nat/linux-osdata.c (osdata_type): Constify fields.
	* nto-tdep.c (nto_parse_redirection): Constify.
	* objc-lang.c (lookup_struct_typedef, lookup_objc_class)
	(lookup_child_selector): Constify.
	(objc_methcall::name): Constify.
	* objc-lang.h (lookup_objc_class, lookup_child_selector)
	(lookup_struct_typedef): Constify.
	* objfiles.c (pc_in_section): Constify.
	* objfiles.h (pc_in_section): Constify.
	* p-exp.y (struct token::oper): Constify.
	(yyerror): Constify.
	* p-lang.h (pascal_yyerror): Constify.
	* parser-defs.h (op_name_standard): Constify.
	(op_print::string): Constify.
	(exp_descriptor::op_name): Constify.
	* printcmd.c (print_address_symbolic): Constify.
	* psymtab.c (print_partial_symbols): Constify.
	* python/py-breakpoint.c (stop_func): Constify.
	(bppy_get_expression): Constify.
	* python/py-cmd.c (cmdpy_completer::name): Constify.
	(cmdpy_function): Constify.
	* python/py-event.c (evpy_add_attribute)
	(gdbpy_initialize_event_generic): Constify.
	* python/py-event.h (evpy_add_attribute)
	(gdbpy_initialize_event_generic): Constify.
	* python/py-evts.c (add_new_registry): Constify.
	* python/py-finishbreakpoint.c (outofscope_func): Constify.
	* python/py-framefilter.c (get_py_iter_from_func): Constify.
	* python/py-inferior.c (get_buffer): Add cast.
	* python/py-param.c (parm_constant::name): Constify.
	* python/py-unwind.c (fprint_frame_id): Constify.
	* python/python.c (gdbpy_parameter_value): Constify.
	* remote-fileio.c (remote_fio_func_map): Make 'name' const.
	* remote.c (memory_packet_config::name): Constify.
	(show_packet_config_cmd, remote_write_bytes)
	(remote_buffer_add_string):
	* reverse.c (exec_reverse_once): Constify.
	* rs6000-tdep.c (variant::name, variant::description): Constify.
	* rust-exp.y (rustyyerror): Constify.
	* rust-lang.c (rust_op_name): Constify.
	* rust-lang.h (rustyyerror): Constify.
	* serial.h (serial_ops::name): Constify.
	* sh-tdep.c (sh_sh_register_name, sh_sh3_register_name)
	(sh_sh3e_register_name, sh_sh2e_register_name)
	(sh_sh2a_register_name, sh_sh2a_nofpu_register_name)
	(sh_sh_dsp_register_name, sh_sh3_dsp_register_name)
	(sh_sh4_register_name, sh_sh4_nofpu_register_name)
	(sh_sh4al_dsp_register_name): Constify.
	* sh64-tdep.c (sh64_register_name): Constify.
	* solib-darwin.c (lookup_symbol_from_bfd): Constify.
	* spu-tdep.c (spu_register_name, info_spu_dma_cmdlist): Constify.
	* stabsread.c (patch_block_stabs, read_type_number)
	(ref_map::stabs, ref_add, process_reference)
	(symbol_reference_defined, define_symbol, define_symbol)
	(error_type, read_type, read_member_functions, read_cpp_abbrev)
	(read_one_struct_field, read_struct_fields, read_baseclasses)
	(read_tilde_fields, read_struct_type, read_array_type)
	(read_enum_type, read_sun_builtin_type, read_sun_floating_type)
	(read_huge_number, read_range_type, read_args, common_block_start)
	(find_name_end): Constify.
	* stabsread.h (common_block_start, define_symbol)
	(process_one_symbol, symbol_reference_defined, ref_add):
	* symfile.c (get_section_index, add_symbol_file_command):
	* symfile.h (get_section_index): Constify.
	* target-descriptions.c (tdesc_type::name): Constify.
	(tdesc_free_type): Add cast.
	* target.c (find_default_run_target):
	(add_deprecated_target_alias, find_default_run_target)
	(target_announce_detach): Constify.
	(do_option): Constify.
	* target.h (add_deprecated_target_alias): Constify.
	* thread.c (print_thread_info_1): Constify.
	* top.c (deprecated_readline_begin_hook, command_line_input):
	Constify.
	(init_main): Add casts.
	* top.h (handle_line_of_input): Constify.
	* tracefile-tfile.c (tfile_write_uploaded_tsv): Constify.
	* tracepoint.c (tvariables_info_1, trace_status_mi): Constify.
	(tfind_command): Rename to ...
	(tfind_command_1): ... this and constify.
	(tfind_command): New function.
	(tfind_end_command, tfind_start_command): Adjust.
	(encode_source_string): Constify.
	* tracepoint.h (encode_source_string): Constify.
	* tui/tui-data.c (tui_partial_win_by_name): Constify.
	* tui/tui-data.h (tui_partial_win_by_name): Constify.
	* tui/tui-source.c (tui_set_source_content_nil): Constify.
	* tui/tui-source.h (tui_set_source_content_nil): Constify.
	* tui/tui-win.c (parse_scrolling_args): Constify.
	* tui/tui-windata.c (tui_erase_data_content): Constify.
	* tui/tui-windata.h (tui_erase_data_content): Constify.
	* tui/tui-winsource.c (tui_erase_source_content): Constify.
	* tui/tui.c (tui_enable): Add cast.
	* utils.c (defaulted_query): Constify.
	(init_page_info): Add cast.
	(puts_debug, subset_compare): Constify.
	* utils.h (subset_compare): Constify.
	* varobj.c (varobj_format_string): Constify.
	* varobj.h (varobj_format_string): Constify.
	* vax-tdep.c (vax_register_name): Constify.
	* windows-nat.c (windows_detach): Constify.
	* xcoffread.c (process_linenos, xcoff_next_symbol_text): Constify.
	* xml-support.c (gdb_xml_end_element): Constify.
	* xml-tdesc.c (tdesc_start_reg): Constify.
	* xstormy16-tdep.c (xstormy16_register_name): Constify.
	* xtensa-tdep.c (xtensa_find_register_by_name): Constify.
	* xtensa-tdep.h (xtensa_register_t::name): Constify.

gdb/gdbserver/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* gdbreplay.c (sync_error): Constify.
	* linux-x86-low.c (push_opcode): Constify.
2017-04-05 19:21:37 +01:00
Pedro Alves
21c8a587ab -Wwrite-strings: gdbserver/win32-low.c and TARGET_WAITKIND_EXECD
src/gdb/gdbserver/win32-low.c:1499:39: error: ISO C++ forbids converting a string constant to 'char*' [-Werror=write-strings]
	ourstatus->value.execd_pathname = "Main executable";
					^

This reporting via TARGET_WAITKIND_EXECD it's totally unnecessary.
get_child_debug_event returns a TARGET_WAITKIND_SPURIOUS by default,
which works just as well here, and is what the equivalent code in
gdb/windows-nat.c does too.

gdb/gdbserver/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

	* win32-low.c (get_child_debug_event)
	<CREATE_PROCESS_DEBUG_EVENT>: Don't report TARGET_WAITKIND_EXECD.
	Report TARGET_WAITKIND_SPURIOUS instead.
2017-04-05 19:21:35 +01:00
Pedro Alves
fb32b4f700 -Wwrite-strings: gdbserver's 'port' parsing
-Wwrite-strings flags this assignment as requiring a cast:

		  port = STDIO_CONNECTION_NAME;

because 'port' is a "char *", and STDIO_CONNECTION_NAME is a string
literal.

gdb/gdbserver/ChangeLog:
2017-04-05  Pedro Alves  <palves@redhat.com>

        * remote-utils.c (remote_prepare, remote_open): Constify.
        * remote-utils.h (remote_prepare, remote_open): Constify.
        * server.c (captured_main): Constify 'port' handling.
2017-04-05 19:21:35 +01:00
Simon Marchi
65dd1e590e gdbserver: Clear .deps on clean
In some situations, the dependency tracking files in .deps can refer to
source files that were removed or renamed, leading to errors like:

  make: *** No rule to make target `version.c', needed by `version.o'. Stop.

This patch makes the clean target clear the .deps directory, which gives
the user a chance to recover from the error wihtout knowing about the
internals of the build system.

It is already done for GDB.  See here for more details:

  https://sourceware.org/ml/gdb-patches/2009-03/msg00000.html

gdb/gdbserver/ChangeLog:

	* Makefile.in (clean): Clear .deps.
2017-04-04 10:50:01 -04:00
Simon Marchi
8fa5b77748 gdbserver: Suffix generated C files with -generated
I noticed that there were some missing files in gdbserver's gitignore
(some generated register format .c files).  Of course the easy fix would
be to add those files to .gitignore, but I think we can do a better job,
so that we don't have to worry about adding generated files to
.gitignore or the clean Makefile target.

I suggest naming all generated source files -generated.c.  This way, we
can use a single rule in .gitignore and do a "rm -f *-generated.c" to
clean them up.

New in v2:

  - Don't rename version.o and xml-builtin.o

gdb/gdbserver/ChangeLog:

	* .gitignore: Remove generated files, replace with wildcard.
	* (clean): Replace removal of generated files with wildcard.
	(version.c): Replace with...
	(version-generated.c): ...this.
	(xml-builtin.c): Replace with...
	(xml-builtin-generated.c): ...this.
	(%-ipa.o: %-generated.c, %.o: %-generated.c): New rules.
	(%.c: *regformats*): Replace with...
	(%-generated.c: *regformats*): ...this.
2017-03-31 11:19:44 -04:00
Max Filippov
a12e714b77 gdbserver: xtensa: support THREADPTR register
Provide aceess to the THREADPTR register to remote gdb.

gdb/gdbserver/
2017-03-27  Max Filippov  <jcmvbkbc@gmail.com>

	* linux-xtensa-low.c (regnum::R_THREADPTR): New enum member.
	(xtensa_fill_gregset): Call collect_register_by_name for
	threadptr register.
	(xtensa_store_gregset): Call supply_register_by_name for
	threadptr register.
2017-03-27 13:03:13 -07:00
Max Filippov
1a09b50a46 gdbserver: xtensa: add call0 support
Correctly handle a0- registers on requests from remote gdb. This fixes

  'Register 1 is not available'

and subsequent assertion in the remote gdb connecting to the gdbserver:

  'findvar.c:291: internal-error: value_of_register_lazy:
    Assertion `frame_id_p(get_frame_id (frame))' failed.'

The register structure is the same for windowed and call0 ABIs because
currently linux kernel internally requires windowed registers, so they
are always present.

gdb/gdbserver/
2017-03-27  Max Filippov  <jcmvbkbc@gmail.com>

	* linux-xtensa-low.c (xtensa_fill_gregset): Call collect_register
	for all registers in a0_regnum..a0_regnum + C0_NREGS range.
	(xtensa_store_gregset): Call supply_register for all registers in
	a0_regnum..a0_regnum + C0_NREGS range.
2017-03-27 13:00:04 -07:00
Simon Marchi
1a01e7c6b0 gdbserver: Use pattern rule for the remaining %-ipa.o objects
gdb/gdbserver/ChangeLog:

	* Makefile.in (%-ipa.o: %-ipa.c): New rule.
	(ax-ipa.o: ax.c): Remove.
	(linux-i386-ipa.o: linux-i386-ipa.c): Remove.
	(linux-amd64-ipa.o: linux-amd64-ipa.c): Remove.
	(linux-aarch64-ipa.o: linux-aarch64-ipa.c): Remove.
	(linux-s390-ipa.o: linux-s390-ipa.c): Remove.
	(linux-ppc-ipa.o: linux-ppc-ipa.c): Remove.
2017-03-13 18:44:05 -04:00
Simon Marchi
36bc18a810 gdbserver: Use pattern rule for IPA objects from common/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%-ipa.o: ../common/%.c): New rule.
	(print-utils-ipa.o: ../common/print-utils.c): Remove.
	(rsp-low-ipa.o: ../common/rsp-low.c): Remove.
	(errors-ipa.o: ../common/errors.c): Remove.
	(format-ipa.o: ../common/format.c): Remove.
	(common-utils-ipa.o: ../common/common-utils.c): Remove.
2017-03-13 18:44:05 -04:00
Simon Marchi
a8ebe3d5f1 gdbserver: Use pattern rule for IPA objects from gdbserver/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%-ipa.o: %.c): New rule.
	(tracepoint-ipa.o: tracepoint.c): Remove.
	(utils-ipa.o: utils.c): Remove.
	(remote-utils-ipa.o: remote-utils.c): Remove.
	(regcache-ipa.o: regcache.c): Remove.
	(i386-linux-ipa.o: i386-linux.c): Remove.
	(i386-mmx-linux-ipa.o: i386-mmx-linux.c): Remove.
	(i386-avx-linux-ipa.o: i386-avx-linux.c): Remove.
	(i386-mpx-linux-ipa.o: i386-mpx-linux.c): Remove.
	(i386-avx-mpx-linux-ipa.o: i386-avx-mpx-linux.c): Remove.
	(i386-avx-avx512-linux-ipa.o: i386-avx-avx512-linux.c): Remove.
	(i386-avx-mpx-avx512-pku-linux-ipa.o: i386-avx-mpx-avx512-pku-linux.c): Remove.
	(amd64-linux-ipa.o: amd64-linux.c): Remove.
	(amd64-avx-linux-ipa.o: amd64-avx-linux.c): Remove.
	(amd64-mpx-linux-ipa.o: amd64-mpx-linux.c): Remove.
	(amd64-avx-mpx-linux-ipa.o: amd64-avx-mpx-linux.c): Remove.
	(amd64-avx-avx512-linux-ipa.o: amd64-avx-avx512-linux.c): Remove.
	(amd64-avx-mpx-avx512-pku-linux-ipa.o: amd64-avx-mpx-avx512-pku-linux.c): Remove.
	(aarch64-ipa.o: aarch64.c): Remove.
	(s390-linux32-ipa.o: s390-linux32.c): Remove.
	(s390-linux32v1-ipa.o: s390-linux32v1.c): Remove.
	(s390-linux32v2-ipa.o: s390-linux32v2.c): Remove.
	(s390-linux64-ipa.o: s390-linux64.c): Remove.
	(s390-linux64v1-ipa.o: s390-linux64v1.c): Remove.
	(s390-linux64v2-ipa.o: s390-linux64v2.c): Remove.
	(s390-te-linux64-ipa.o: s390-te-linux64.c): Remove.
	(s390-vx-linux64-ipa.o: s390-vx-linux64.c): Remove.
	(s390-tevx-linux64-ipa.o: s390-tevx-linux64.c): Remove.
	(s390x-linux64-ipa.o: s390x-linux64.c): Remove.
	(s390x-linux64v1-ipa.o: s390x-linux64v1.c): Remove.
	(s390x-linux64v2-ipa.o: s390x-linux64v2.c): Remove.
	(s390x-te-linux64-ipa.o: s390x-te-linux64.c): Remove.
	(s390x-vx-linux64-ipa.o: s390x-vx-linux64.c): Remove.
	(s390x-tevx-linux64-ipa.o: s390x-tevx-linux64.c): Remove.
	(powerpc-32l-ipa.o: powerpc-32l.c): Remove.
	(powerpc-altivec32l-ipa.o: powerpc-altivec32l.c): Remove.
	(powerpc-cell32l-ipa.o: powerpc-cell32l.c): Remove.
	(powerpc-vsx32l-ipa.o: powerpc-vsx32l.c): Remove.
	(powerpc-isa205-32l-ipa.o: powerpc-isa205-32l.c): Remove.
	(powerpc-isa205-altivec32l-ipa.o: powerpc-isa205-altivec32l.c): Remove.
	(powerpc-isa205-vsx32l-ipa.o: powerpc-isa205-vsx32l.c): Remove.
	(powerpc-e500l-ipa.o: powerpc-e500l.c): Remove.
	(powerpc-64l-ipa.o: powerpc-64l.c): Remove.
	(powerpc-altivec64l-ipa.o: powerpc-altivec64l.c): Remove.
	(powerpc-cell64l-ipa.o: powerpc-cell64l.c): Remove.
	(powerpc-vsx64l-ipa.o: powerpc-vsx64l.c): Remove.
	(powerpc-isa205-64l-ipa.o: powerpc-isa205-64l.c): Remove.
	(powerpc-isa205-altivec64l-ipa.o: powerpc-isa205-altivec64l.c): Remove.
	(powerpc-isa205-vsx64l-ipa.o: powerpc-isa205-vsx64l.c): Remove.
	(tdesc-ipa.o: tdesc.c): Remove.
	(x32-linux-ipa.o: x32-linux.c): Remove.
	(x32-avx-linux-ipa.o: x32-avx-linux.c): Remove.
	(x32-avx512-linux-ipa.o: x32-avx512-linux.c): Remove.
2017-03-13 18:44:04 -04:00
Simon Marchi
50cfacb78f gdbserver: Use pattern rule for objects from arch/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%.o: ../arch/%.c): New rule.
	(arm.o: ../arch/arm.c): Remove.
	(arm-linux.o: ../arch/arm-linux.c): Remove.
	(arm-get-next-pcs.o: ../arch/arm-get-next-pcs.c): Remove.
	(aarch64-insn.o: ../arch/aarch64-insn.c): Remove.
2017-03-13 18:44:03 -04:00
Simon Marchi
c5a22423d0 gdbserver: Use pattern rule for objects from nat/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%.o: ../nat/%.c): New rule.
	(x86-dregs.o: ../nat/x86-dregs.c): Remove.
	(amd64-linux-siginfo.o: ../nat/amd64-linux-siginfo.c): Remove.
	(linux-btrace.o: ../nat/linux-btrace.c): Remove.
	(linux-osdata.o: ../nat/linux-osdata.c): Remove.
	(linux-procfs.o: ../nat/linux-procfs.c): Remove.
	(linux-ptrace.o: ../nat/linux-ptrace.c): Remove.
	(linux-waitpid.o: ../nat/linux-waitpid.c): Remove.
	(mips-linux-watch.o: ../nat/mips-linux-watch.c): Remove.
	(ppc-linux.o: ../nat/ppc-linux.c): Remove.
	(linux-personality.o: ../nat/linux-personality.c): Remove.
	(aarch64-linux-hw-point.o: ../nat/aarch64-linux-hw-point.c): Remove.
	(aarch64-linux.o: ../nat/aarch64-linux.c): Remove.
	(x86-linux.o: ../nat/x86-linux.c): Remove.
	(x86-linux-dregs.o: ../nat/x86-linux-dregs.c): Remove.
	(linux-namespaces.o: ../nat/linux-namespaces.c): Remove.
2017-03-13 18:44:03 -04:00
Simon Marchi
6bda016bec gdbserver: Use pattern rule for objects from common/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%.o: ../common/%.c): New rule.
	(signals.o: ../common/signals.c): Remove.
	(print-utils.o: ../common/print-utils.c): Remove.
	(rsp-low.o: ../common/rsp-low.c): Remove.
	(common-utils.o: ../common/common-utils.c): Remove.
	(posix-strerror.o: ../common/posix-strerror.c): Remove.
	(mingw-strerror.o: ../common/mingw-strerror.c): Remove.
	(vec.o: ../common/vec.c): Remove.
	(gdb_vecs.o: ../common/gdb_vecs.c): Remove.
	(xml-utils.o: ../common/xml-utils.c): Remove.
	(ptid.o: ../common/ptid.c): Remove.
	(buffer.o: ../common/buffer.c): Remove.
	(format.o: ../common/format.c): Remove.
	(filestuff.o: ../common/filestuff.c): Remove.
	(agent.o: ../common/agent.c): Remove.
	(errors.o: ../common/errors.c): Remove.
	(environ.o: ../common/environ.c): Remove.
	(common-debug.o: ../common/common-debug.c): Remove.
	(cleanups.o: ../common/cleanups.c): Remove.
	(common-exceptions.o: ../common/common-exceptions.c): Remove.
	(fileio.o: ../common/fileio.c): Remove.
	(common-regcache.o: ../common/common-regcache.c): Remove.
	(signals-state-save-restore.o: ../common/signals-state-save-restore.c): Remove.
	(new-op.o: ../common/new-op.c): Remove.
	(btrace-common.o: ../common/btrace-common.c): Remove.
2017-03-13 18:44:02 -04:00
Simon Marchi
21122961ec gdbserver: Use pattern rule for objects from target/
gdb/gdbserver/ChangeLog:

	* Makefile.in (%.o: ../target/%.c): New rule.
	(waitstatus.o: ../target/waitstatus.c): Remove.
2017-03-13 18:44:02 -04:00
Simon Marchi
c362e6217b gdbserver: Use pattern rule for regformats source file generation
gdb/gdbserver/ChangeLog:

	* Makefile.in
	(%.c: ../regformats/%.dat,
	(%.c: ../regformats/arm/%.dat,
	(%.c: ../regformats/i386/%.dat,
	(%.c: ../regformats/rs6000/%.dat): New rules.
	(aarch64.c): Remove.
	(reg-arm.c): Remove.
	(arm-with-iwmmxt.c): Remove.
	(arm-with-vfpv2.c): Remove.
	(arm-with-vfpv3.c): Remove.
	(arm-with-neon.c): Remove.
	(reg-bfin.c): Remove.
	(reg-cris.c): Remove.
	(reg-crisv32.c): Remove.
	(i386.c): Remove.
	(i386-linux.c): Remove.
	(i386-avx.c): Remove.
	(i386-avx-linux.c): Remove.
	(i386-avx-avx512.c): Remove.
	(i386-avx-avx512-linux.c): Remove.
	(i386-mpx.c): Remove.
	(i386-mpx-linux.c): Remove.
	(i386-avx-mpx-avx512-pku.c): Remove.
	(i386-avx-mpx-avx512-pku-linux.c): Remove.
	(i386-avx-mpx.c): Remove.
	(i386-avx-mpx-linux.c): Remove.
	(i386-mmx.c): Remove.
	(i386-mmx-linux.c): Remove.
	(reg-ia64.c): Remove.
	(reg-m32r.c): Remove.
	(reg-m68k.c): Remove.
	(reg-cf.c): Remove.
	(mips-linux.c): Remove.
	(mips-dsp-linux.c): Remove.
	(mips64-linux.c): Remove.
	(mips64-dsp-linux.c): Remove.
	(nios2-linux.c): Remove.
	(powerpc-32.c): Remove.
	(powerpc-32l.c): Remove.
	(powerpc-altivec32l.c): Remove.
	(powerpc-cell32l.c): Remove.
	(powerpc-vsx32l.c): Remove.
	(powerpc-isa205-32l.c): Remove.
	(powerpc-isa205-altivec32l.c): Remove.
	(powerpc-isa205-vsx32l.c): Remove.
	(powerpc-e500l.c): Remove.
	(powerpc-64l.c): Remove.
	(powerpc-altivec64l.c): Remove.
	(powerpc-cell64l.c): Remove.
	(powerpc-vsx64l.c): Remove.
	(powerpc-isa205-64l.c): Remove.
	(powerpc-isa205-altivec64l.c): Remove.
	(powerpc-isa205-vsx64l.c): Remove.
	(s390-linux32.c): Remove.
	(s390-linux32v1.c): Remove.
	(s390-linux32v2.c): Remove.
	(s390-linux64.c): Remove.
	(s390-linux64v1.c): Remove.
	(s390-linux64v2.c): Remove.
	(s390-te-linux64.c): Remove.
	(s390-vx-linux64.c): Remove.
	(s390-tevx-linux64.c): Remove.
	(s390x-linux64.c): Remove.
	(s390x-linux64v1.c): Remove.
	(s390x-linux64v2.c): Remove.
	(s390x-te-linux64.c): Remove.
	(s390x-vx-linux64.c): Remove.
	(s390x-tevx-linux64.c): Remove.
	(tic6x-c64xp-linux.c): Remove.
	(tic6x-c64x-linux.c): Remove.
	(tic6x-c62x-linux.c): Remove.
	(reg-sh.c): Remove.
	(reg-sparc64.c): Remove.
	(reg-spu.c): Remove.
	(amd64.c): Remove.
	(amd64-linux.c): Remove.
	(amd64-avx.c): Remove.
	(amd64-avx-linux.c): Remove.
	(amd64-avx-avx512.c): Remove.
	(amd64-avx-avx512-linux.c): Remove.
	(amd64-mpx.c): Remove.
	(amd64-mpx-linux.c): Remove.
	(amd64-avx-mpx-avx512-pku.c): Remove.
	(amd64-avx-mpx-avx512-pku-linux.c): Remove.
	(amd64-avx-mpx.c): Remove.
	(amd64-avx-mpx-linux.c): Remove.
	(x32.c): Remove.
	(x32-linux.c): Remove.
	(x32-avx.c): Remove.
	(x32-avx-linux.c): Remove.
	(x32-avx-avx512.c): Remove.
	(x32-avx-avx512-linux.c): Remove.
	(reg-xtensa.c): Remove.
	(reg-tilegx.c): Remove.
	(reg-tilegx32.c): Remove.
2017-03-13 18:44:01 -04:00
Sergio Durigan Junior
1672e0d98d Share gdb/environ.[ch] with gdbserver
We will need access to the environment functions when we share
fork_inferior between GDB and gdbserver, therefore we simply make the
API on gdb/environ.[ch] available on common/.  No extra adjustments
are needed to make it compile on gdbserver.

gdb/ChangeLog:
2017-03-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Replace "environ.c" with
	"common/environ.c".
	(HFILES_NO_SRCDIR): Likewise, for "environ.h".
	* environ.c: Include "common-defs.h" instead of "defs.h.  Moved
	to...
	* common/environ.c: ... here.
	* environ.h: Moved to...
	* common/environ.h: ... here.

gdb/gdbserver/ChangeLog:
2017-03-07  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Add "common/environ.c".
	(OBJS): Add "common/environ.h".
2017-03-07 15:39:35 -05:00
Michael Sturm
51547df62c Add support for Intel PKRU register to GDB and GDBserver.
This patch adds support for the registers added by the
Memory Protection Keys for Userspace (PKU aka PKEYs) feature.
Native and remote debugging are covered by this patch.

The XSAVE area is extended with a new state containing
the 32-bit wide PKRU register. The new register is added to
amd64-avx-mpx_avx512-* tdesc, thus it is renamed accordingly. Also,
respective xstate mask X86_XSTATE_AVX_MPX_AVX512_MASK is renamed to
X86_XSTATE_AVX_MPX_AVX512_PKU_MASK to reflect the new feature set
it supports.

For more information, please refer to the
Intel(R) 64 and IA-32 Architectures Software Developer's
Manual - Septemper 2015
http://www.intel.com/content/dam/www/public/us/en/documents/
manuals/64-ia-32-architectures-software-developer-manual-325462.pdf

gdb/Changelog:
2015-12-08  Michael Sturm  <michael.sturm@intel.com>

     * NEWS: Mention addition of PKU feature.
     * amd64-linux-nat.c (amd64_linux_gregset32_reg_offset): Add PKRU register.
     * amd64-linux-tdep.c (features/i386/amd64-avx-mpx-avx512-linux.c): Rename
       to...
     (features/i386/amd64-avx-mpx-avx512-pku-linux.c): ...this.
     (amd64_linux_gregset_reg_offset): Add PKRU register.
     (amd64_linux_core_read_description): Rename
     X86_XSTATE_AVX_MPX_AVX512_MASK,
     rename tdesc_amd64_avx_mpx_avx512_pku_linux.
     (_initialize_amd64_linux_tdep): Rename
     initialize_tdesc_amd64_avx_mpx_avx512_linux.
     * amd64-linux-tdep.h (AMD64_LINUX_ORIG_RAX_REGNUM): Adjust regnum
     calculation.
     (tdesc_amd64_avx_mpx_avx512_linux): Rename to...
     (tdesc_amd64_avx_mpx_avx512_pku_linux): ...this.
     * amd64-tdep.c (features/i386/amd64-avx-mpx-avx512-pku.c): Rename to...
     (features/i386/amd64-avx-mpx-avx512-pku.c): ...this.
     (amd64_pkeys_names): New register name for raw register PKRU.
     (amd64_init_abi): Add code to initialize PKRU tdep variables if feature
     is present.
     (amd64_target_description): Rename X86_XSTATE_AVX_MPX_AVX512_MASK,
     rename tdesc_amd64_avx_mpx_avx512.
     (_initialize_amd64_tdep): Rename initialize_tdesc_amd64_avx_mpx_avx512.
     * amd64-tdep.h (enum amd64_regnum): Add PKRU register.
     (AMD64_NUM_REGS): Adjust regnum calculation.
     * i386-linux.nat.c (GETXSTATEREGS_SUPPLIES): Extend range of
     registers supplied via XSTATE by PKRU register.
     * common/x86-xstate.h (X86_XSTATE_PKRU): New macro.
     (X86_XSTATE_AVX_MPX_AVX512_MASK): Add PKRU and renamed mask.
     (X86_XSTATE_ALL_MASK): Rename X86_XSTATE_AVX_MPX_AVX512_MASK.
     (X86_XSTATE_PKRU_SIZE): New macro.
     (X86_XSTATE_MAX_SIZE): Adjust size.
     (HAS_PKRU(XCR0)): New macro.
     (X86_XSTATE_SIZE): Add checkfor PKRU.
     * features/Makefile (WHICH): Rename i386/i386-avx-mpx-avx512,
     i386/i386-avx-mpx-avx512-linux, i386/amd64-avx-mpx-avx512,
     i386/amd64-avx-mpx-avx512-linux.
     (i386/i386-avx-mpx-avx512-expedite): Rename expedite.
     (i386/i386-avx-mpx-avx512-linux-expedite): Likewise.
     (i386/amd64-avx-mpx-avx512-expedite): Likewise.
     (i386/amd64-avx-mpx-avx512-linux-expedite): Likewise.
     (XMLTOC): Rename i386/amd64-avx-mpx-avx512-linux.xml,
     i386/amd64-avx-mpx-avx512.xml, i386/i386-avx-mpx-avx512-linux.xml,
     i386/i386-avx-mpx-avx512.xml.
     ((outdir)/i386/i386-avx-mpx-avx512.dat): Rename rule, add
     i386/32bit-pkeys.xml.
     ((outdir)/i386/i386-avx-mpx-avx512-pku-linux.dat): Likewise.
     ((outdir)/i386/amd64-avx-mpx-avx512.dat): Rename rule, add
     i386/64bit-pkeys.xml.
     ((outdir)/i386/amd64-avx-mpx-avx512-linux.dat): Likewise.
     * features/i386/32bit-pkeys.xml: New file.
     * features/i386/64bit-pkeys.xml: Likewise.
     * features/i386/amd64-avx-mpx-avx512-linux-pku.c: Regenerate from
     renamed XML file.
     * features/i386/amd64-avx-mpx-avx512-linux.xml: Rename to
     amd64-avx-mpx-avx512-pku-linux.xml, add 64bit-pkeys.xml
     * features/i386/amd64-avx-mpx-avx512.c: Regenerate from
     renamed XML file.
     * features/i386/amd64-avx-mpx-avx512.xml: Rename to
     amd64-avx-mpx-avx512-pku.xml, add 64bit-pkeys.xml.
     * features/i386/i386-avx-mpx-avx512-linux.c: Regenerate from
     renamed XML file.
     * features/i386/i386-avx-mpx-avx512-linux.xml: Rename to
     i386-avx-mpx-avx512-pku-linux.xml, add 32bit-pkeys.xml.
     * features/i386/i386-avx-mpx-avx512.c: Regenerate from
     renamed XML file.
     * features/i386/i386-avx-mpx-avx512.xml: Rename to
     i386-avx-mpx-avx512-pku.xml, add 32bit-pkeys.xml.
     * i386-linux-nat.c (GETXSTATEREGS_SUPPLIES): Change to use
     I386_PKEYS_NUM_REGS.
     * i386-linux-tdep.c (features/i386/i386-avx-mpx-avx512-linux.c): Rename
     include.
     (i386_linux_gregset_reg_offset): Add PKRU register.
     (i386_linux_core_read_description): Rename xstate mask and returned
     tdesc for X86_XSTATE_AVX_MPX_AVX512_PKU_MASK.
     (_initialize_i386_linux_tdep): Rename
     initialize_tdesc_i386_avx_mpx_avx512_linux.
     * i386-linux-tdep.h (I386_LINUX_ORIG_EAX_REGNUM): Adjuste regnum
     calculation.
     (tdesc_i386_avx_mpx_avx512_linux): Rename prototype.
     (/* Format of XSAVE...): Add pkru register.
     * i386-tdep.c (i386-avx-mpx-avx512.c): Rename include.
     (i386_pkeys_names): New register name for raw register PKRU.
     (i386_pkru_regnum_p): Add function to look up register number of
     PKRU raw register.
     (i386_register_reggroup_p): Add code to exclude PKRU from general
     register group.
     (i386_validate_tdesc_p): Add code to handle PKRU feature, add PKRU
     registers if feature is present in xcr0.
     (i386_gdbarch_init): Adjust number of registers in architecture. Add code
     to initialize PKRU feature variables in tdep structure.
     (i386_target_description): Rename xstate mask and returned
     tdesc for X86_XSTATE_AVX_MPX_AVX512_PKU_MASK.
     (_initialize_i386_tdep): Rename initialize_tdesc_i386_avx_mpx_avx512.
     * i386-tdep.h (struct gdbarch_tdep): Add feature variables to tdep
     structure.
     (enum i386_regnum): Add PKRU register.
     (I386_PKEYS_NUM_REGS): New define for number of registers in PKRU feature.
     (i386_pkru_regnum_p): New prototype.
     * i387-tdep.c (xsave_pkeys_offset): New table for PKRU offsets in
     XSAVE buffer.
     (XSAVE_PKEYS_ADDR): New macro.
     (i387_supply_xsave): Add code to handle PKRU register.
     (i387_collect_xsave): Likewise.
     * i387-tdep.h (I387_NUM_PKEYS_REGS): New define for number of registers
     in PKRU feature.
     (I387_PKRU_REGNUM): New macro.
     (I387_PKEYSEND_REGNUM): Likewise.
     * regformats/i386/amd64_avx_mpx_avx512_pku_linux.dat: Regenerate from
     renamed XML file.
     * regformats/i386/amd64_avx_mpx_avx512_pku.dat: Likewise.
     * regformats/i386/i386/amd64-avx-mpx-avx512-pku.dat: Likewise.
     * regformats/i386/i386_avx_mpx_avx512_pku_linux.dat: Likewise.

testsuite/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * gdb.arch/i386-pkru.c: New file.
     * gdb.arch/i386-pkru.exp: Likewise.

gdbserver/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * Makefile.in (clean): Rename i386-avx-mpx-avx512.c,
     i386-avx-mpx-avx512-linux.c, amd64-avx-mpx-avx512.c,
     amd64-avx-mpx-avx512-linux.c.
     (i386-avx-mpx-avx512-linux-ipa.o:): Rename rule and source file.
     (amd64-avx-mpx-avx512-linux-ipa.o:): Likewise.
     (i386-avx-mpx-avx512.c :): Rename rule, source files and dat files.
     (i386-avx-mpx-avx512-linux.c :): Likewise.
     (amd64-avx-mpx-avx512.c :): Likewise.
     (amd64-avx-mpx-avx512-linux.c :): Likewise.
     * configure.srv (srv_i386_regobj): Rename i386-avx-mpx-avx512.o.
     (srv_i386_linux_regobj): Rename i386-avx-mpx-avx512-linux.o.
     (srv_amd64_regobj): Rename amd64-avx-mpx-avx512.o.
     (srv_amd64_linux_regobj): Rename amd64-avx-mpx-avx512-linux.o.
     (ipa_i386_linux_regobj): Rename i386-avx-mpx-avx512-linux-ipa.o.
     (ipa_amd64_linux_regobj): Rename amd64-avx-mpx-avx512-pku-linux-ipa.o.
     (srv_i386_32bit_xmlfiles): Add 32bit-pkeys.xml.
     (srv_i386_64bit_xmlfiles): Add 64bit-pkeys.xml.
     (srv_i386_xmlfiles): Rename i386/i386-avx-mpx-avx512.xml.
     (srv_amd64_xmlfiles): Rename i386/amd64-avx-mpx-avx512.xml.
     (srv_i386_linux_xmlfiles): Rename i386/i386-avx-mpx-avx512-linux.xml.
     (srv_amd64_linux_xmlfiles): Rename di386/amd64-avx-mpx-avx512-linux.xml.
     * i387-fp.c (num_pkeys_registers): New variable.
     (struct i387_xsave): Add space for pkru values.
     (i387_cache_to_fsave): Add code to handle PKRU register.
     (i387_xsave_to_cache): Likewise.
     * linux-amd64-ipa.c (get_ipa_tdesc): Rename
     tdesc_amd64_avx_mpx_avx512_linux.
     (initialize_low_tracepoint): Rename
     init_registers_amd64_avx_mpx_avx512_linux.
     * linux-i386-ipa.c (get_ipa_desc): Rename
     tdesc_i386_avx_mpx_avx512_linux.
     (initialize_low_tracepoint): Rename
     init_registers_i386_avx_mpx_avx512_linux.
     * linux-x86-low.c (x86_64_regmap[]): Add PKRU register.
     (x86_linux_read_description): Rename X86_XSTATE_AVX_MPX_AVX512_MASK,
     rename tdesc_amd64_avx_mpx_avx512_linux, rename
     tdesc_i386_avx_mpx_avx512_linux.
     (x86_get_ipa_tdesc_idx): Rename tdesc_amd64_avx_mpx_avx512_linux,
     rename tdesc_i386_avx_mpx_avx512_linux.
     (initialize_low_arch): Rename init_registers_amd64_avx_mpx_avx512_linux,
     rename init_registers_i386_avx_mpx_avx512_linux.
     * linux-x86-tdesc.h (init_registers_amd64_avx_mpx_avx512_linux): Renamed
     prototype.
     (tdesc_amd64_avx_mpx_avx512_linux): Likewise.
     (init_registers_i386_avx_mpx_avx512_linux): Likewise.
     (tdesc_i386_avx_mpx_avx512_linux): Likewise.

doc/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * gdb.texinfo (i386 Features): Add description of PKRU register.

Change-Id: If75ce5aba7dfd33fdbe3d8b47f04ef3f550c52be
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
2017-02-17 11:44:48 +01:00
Michael Sturm
a1fa17ee15 Add target description for avx-avx512.
Add a dedicated target description for the feature combination
avx-avx512 as implemented by certain IA CPU models.

The corresponding X86_XSTATE_AVX_AVX512_MASK already exists, but shared
the tdesc with X86_XSTATE_AVX_MPX_AVX512_MASK. This caused MPX registers
displayed as undefined on CPUs that only implemented
X86_XSTATE_AVX_AVX512_MASK, which is undesired. This patch solves this issue.

This patch also corrects the wrong usage of x32-avx-mpx-avx512, which is
replaced by x32-avx-avx512. The MPX feature is not implemented in x32 mode.

gdb/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * amd64-linux-tdep.c (features/i386/amd64-avx-avx512-linux.c):
     New include.
     (features/i386/x32-avx-mpx-avx512-linux.c): Rename to...
     (features/i386/x32-avx-avx512-linux.c): ...this.
     (amd64_linux_core_read_description): Add dedicated cases for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
     (_initialize_amd64_linux_tdep): Add calls to
     initialize_tdesc_amd64_avx_avx512_linux and
     initialize_tdesc_x32_avx_avx512_linux.
     * amd64-linux.tdep.h (tdesc_amd64_avx_avx512_linux): New prototype.
     (tdesc_x32_avx_mpx_avx512_linux): Rename to...
     (tdesc_x32_avx_avx512_linu): ...this.
     * amd64-tdep.c (features/i386/amd64-avx-avx512.c): New include.
     (features/i386/x32-avx-mpx-avx512.c): Rename to...
     (features/i386/x32-avx-avx512.c): ...this.
     (amd64_target_description): Add dedicated case for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
     (_initialize_amd64_tdep): Add call to
     initialize_tdesc_amd64_avx_avx512.
     (initialize_tdesc_x32_avx_mpx_avx512): Rename to...
     (initialize_tdesc_x32_avx_avx512): ...this.
     * features/Makefile (WHICH): New tdescs i386/i386-avx-avx512,
     i386/i386-avx-avx512-linux, i386/amd64-avx-avx512,
     i386/amd64-avx-avx512-linux.
     (i386/x32-avx-mpx-avx512): Rename to...
     (i386/x32-avx-avx512): ...this.
     (i386/x32-avx-mpx-avx512-linux): Rename to...
     (i386/x32-avx-avx512-linux): ...this.
     (i386/i386-avx-avx512-expedite, i386/i386-avx-avx512-linux-expedite,
     i386/amd64-avx-avx512-expedite, i386/amd64-avx-avx512-linux-expedite):
     New expedites.
     (i386/x32-avx-mpx-avx512-expedite): Rename to...
     (i386/x32-avx-avx512-expedite): ...this.
     (i386/x32-avx-mpx-avx512-linux-expedite): Rename to...
     (i386/x32-avx-avx512-linux-expedite): ...this.
     (XMLTOC): New XML files i386/amd64-avx-avx512-linux.xml,
     i386/amd64-avx-avx512.xml, i386/i386-avx-avx512-linux.xml,
     i386/i386-avx-avx512.xml.
     (i386/x32-avx-mpx-avx512-linux.xml): Rename to...
     (i386/x32-avx-avx512-linux.xml): ...this.
     (i386/x32-avx-mpx-avx512.xml): Rename to...
     (i386/x32-avx-avx512.xml): ...this.
     ($(outdir)/i386/i386-avx-avx512.dat): New rule.
     ($(outdir)/i386/i386-avx-avx512-linux.dat): Likewise.
     ($(outdir)/i386/amd64-avx-avx512.dat): Likewise.
     ($(outdir)/i386/amd64-avx-avx512-linux.dat): Likewise.
     ($(outdir)/i386/x32-avx-mpx-avx512.dat):  Rename to...
     ($(outdir)/i386/x32-avx-avx512.dat): ...this.
     ($(outdir)/i386/x32-avx-mpx-avx512-linux.dat): Rename to...
     ($(outdir)/i386/x32-avx-avx512-linux.dat): ...this.
     * features/i386/amd64-avx-avx512-linux.c: New file.
     * features/i386/amd64-avx-avx512-linux.xml: Likewise.
     * features/i386/amd64-avx-avx512.c: Likewise.
     * features/i386/amd64-avx-avx512.xml: Likewise.
     * features/i386/i386-avx-avx512-linux.c: Likewise.
     * features/i386/i386-avx-avx512-linux.xml: Likewise.
     * features/i386/i386-avx-avx512.c: Likewise.
     * features/i386/i386-avx-avx512.xml: Likewise.
     * features/i386/x32-avx-mpx-avx512-linux.c: Deleted.
     * features/i386/x32-avx-avx512-linux.c: New file.
     * features/i386/x32-avx-mpx-avx512-linux.xml: Deleted.
     * features/i386/x32-avx-avx512-linux.xml: New file.
     * features/i386/x32-avx-mpx-avx512.c: Deleted.
     * features/i386/x32-avx-avx512.c: New file.
     * features/i386/x32-avx-mpx-avx512.xml: Deleted.
     * features/i386/x32-avx-avx512.xml: New file.
     * i386-linux-tdep.c (features/i386/i386-avx-avx512-linux.c): New include.
     (i386_linux_core_read_description): Add dedicated case for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
     (_initialize_i386_linux_tdep): Add call to
     initialize_tdesc_i386_avx_avx512_linux.
     * i386-linux-tdep.h (tdesc_i386_avx_avx512_linux): New prototype.
     * i386-tdep.c (features/i386/i386-avx-avx512.c): New include.
     (i386_validate_tdesc_p): Correct XSTATE mask used for feature_avx512.
     (i386_target_description): Add dedicated case for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
     (_initialize_i386_tdep): Add call to initialize_tdesc_i386_avx_avx512.
     * regformats/i386/amd64-avx-avx512-linux.dat: New file
     * regformats/i386/amd64-avx-avx512.dat: Likewise.
     * regformats/i386/i386-avx-avx512-linux.dat: Likewise.
     * regformats/i386/i386-avx-avx512.dat: Likewise.
     * regformats/i386/x32-avx-mpx-avx512-linux.dat: Deleted.
     * regformats/i386/x32-avx-avx512-linux.dat: New file.
     * regformats/i386/x32-avx-mpx-avx512.dat: Deleted.
     * regformats/i386/x32-avx-avx512.dat: New file.
     * x86-linux-nat.c (x86_linux_read_description): Add dedidated case for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate description.

gdbserver/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * Makefile.in  (clean): Add handling of new source files
     i386-avx-avx512.c, i386-avx-avx512-linux.c, amd64-avx-avx512.c,
     amd64-avx-avx512-linux.c.
     (x32-avx-mpx-avx512.c): Rename to...
     (x32-avx-avx512.c): ...this.
     (x32-avx-mpx-avx512-linux.c): Rename to...
     (x32-avx-avx512-linux.c): ...this.
     (i386-avx-avx512-linux-ipa.o): New rule.
     (amd64-avx-avx512-linux-ipa.o): Likewise.
     (i386-avx-avx512.c): Likewise.
     (i386-avx-avx512-linux.c): Likewise.
     (amd64-avx-avx512.c): Likewise.
     (amd64-avx-avx512-linux.c): Likewise.
     (x32-avx-avx512.c): Rename rule, source files, dat files from
     x32-avx-mpx-avx512.*) to this.
     (x32-avx-avx512-linux.c): Rename rule, source files, dat files from
     x32-avx-mpx-avx512-linux.*) to this.
     * configure.srv (srv_i386_regobj): Add i386-avx-avx512.o.
     (srv_i386_linux_regobj): Add i386-avx-avx512-linux.o.
     (srv_amd64_regobj): Add amd64-avx-avx512.o, rename
     x32-avx-mpx-avx512.o to x32-avx-avx512.o.
     (srv_amd64_linux_regobj): Add amd64-avx-avx512-linux.o, rename
     x32-avx-mpx-avx512-linux.o to x32-avx-avx512-linux.o.
     (ipa_i386_linux_regobj): Add i386-avx-avx512-linux-ipa.o.
     (ipa_amd64_linux_regobj): Add amd64-avx-avx512-linux-ipa.o.
     (srv_i386_xmlfiles): Add i386/i386-avx-avx512.xml.
     (srv_amd64_xmlfiles): Add i386/amd64-avx-avx512.xml, rename
     x32-avx-mpx-avx512.xml to x32-avx-avx512.xml.
     (srv_i386_linux_xmlfiles): Add i386/i386-avx-avx512-linux.xml.
     (srv_amd64_linux_xmlfiles): Add i386/amd64-avx-avx512-linux.xml,
     rename x32-avx-mpx-avx512-linux.xml to x32-avx-avx512-linux.xml.
     * linux-amd64-ipa.c (get_ipa_tdesc): Add dedicated case for
     X86_TDESC_AVX_AVX512 and return appropriate tdesc.
     (initialize_low_tracepoint): Add init_registers_amd64_avx_avx512_linux.
     * linux-i386-ipa.c (get_ipa_tdesc): Add dedicated case for
     X86_TDESC_AVX_AVX512 and return appropriate tdesc.
     (initialize_low_tracepoint): Add init_registers_i386_avx_avx512_linux.
     * linux-x86-low.c (x86_linux_read_description): Add dedicated cases for
     X86_XSTATE_AVX_AVX512_MASK and return appropriate tdesc.
     (x86_get_ipa_tdesc_idx): Rename tdesc_x32_avx_mpx_avx512_linux to
     tdesc_x32_avx_avx512_linux, add dedicated if-clause for
     tdesc_amd64_avx_avx512_linux and return appropriate mask.
     Add dedicated clause for tdesc_i386_avx_avx512_linux
     and return appropriate mask.
     (initialize_low_arch): Add init_registers_amd64_avx_avx512_linux,
     rename init_registers_x32_avx_mpx_avx512_linux, add
     init_registers_i386_avx_avx512_linux.
     * linux-x86-tdesc.h (enum x86_linux_tdesc): Add new value for
     X86_TDESC_AVX_AVX512.
     (init_registers_amd64_avx_avx512_linux): New prototype.
     (tdesc_amd64_avx_avx512_linux): Likewise.
     (init_registers_x32_avx_mpx_avx512_linux): Rename to...
     (init_registers_x32_avx_avx512_linux): ...this.
     (tdesc_x32_avx_mpx_avx512_linux): Rename to...
     (tdesc_x32_avx_avx512_linux): ...this.
     (init_registers_i386_avx_avx512_linux): New prototype.
     (tdesc_i386_avx_avx512_linux): Likewise.

Change-Id: I01359fab56c961a39568df50af39714ec7b31706
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
2017-02-17 11:44:36 +01:00
Michael Sturm
22049425ce Rename target descriptions to reflect actual content of description.
To better reflect the actual feature set covered by the IA target
descriptions, the existing descriptions are renamed. Each feature of
the extended state is added to the name of a description or xstate mask
starting from AVX.
For example, amd64-mpx-avx512-linux becomes amd64-avx-mpx-avx512-linux,
while amd64-avx-linux remains unchanged.
Likewise, the corresponding xstate masks are changed, e.g. from
X86_XSTATE_MPX_AVX512_MASK to X86_XSTATE_AVX_MPX_AVX512_MASK.

gdb/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * amd64-linux-tdep.c (features/i386/amd64-avx512-linux.c): Rename
     include to...
     (features/i386/amd64-avx-mpx-avx512-linux.c): ...this.
     (features/i386/x32-avx512-linux.c): Rename include to...
     (features/i386/x32-avx-mpx-avx512-linux.c): ...this.
     (amd64_linux_core_read_description): Rename X86_XSTATE_MPX_AVX512_MASK,
     X86_XSTATE_AVX512_MASK, desc_x32_avx512_linux, tdesc_amd64_avx512_linux.
     (_initialize_amd64_linux_tdep): Rename
     initialize_tdesc_amd64_avx512_linux, initialize_tdesc_x32_avx512_linux.
     * amd64-linux-tdep.h (tdesc_amd64_avx512_linux): Rename to...
     (tdesc_amd64_avx_mpx_avx512_linux): ...this.
     (tdesc_x32_avx512_linux): Rename to...
     (tdesc_x32_avx_mpx_avx512_linux): ...this.
     * amd64-tdep.c (features/i386/amd64-avx512.c): Rename include to...
     (features/i386/amd64-avx-mpx-avx512.c): ...this.
     (features/i386/x32-avx512.c): Rename include to...
     (features/i386/x32-avx-mpx-avx512.c): ...this.
     (amd64_target_description): Rename X86_XSTATE_MPX_AVX512_MASK,
     X86_XSTATE_AVX512_MASK, tdesc_amd64_avx512.
     (_initialize_amd64_tdep): Rename initialize_tdesc_amd64_avx512. Rename
     initialize_tdesc_x32_avx512.
     * common/x86-xstate.h (X86_XSTATE_AVX512_MASK): Rename to...
     (X86_XSTATE_AVX_AVX512_MASK): ...this.
     (86_XSTATE_MPX_AVX512_MASK): Rename to...
     (X86_XSTATE_AVX_MPX_AVX512_MASK): ...this.
     (X86_XSTATE_ALL_MASK): Rename X86_XSTATE_MPX_AVX512_MASK to
     X86_XSTATE_AVX_MPX_AVX512_MASK.
     * features/Makefile (WHICH): Rename i386/i386-avx512,
     i386/i386-avx512-linux, i386/amd64-avx512, i386/amd64-avx512-linux,
     i386/x32-avx512, i386/x32-avx512-linux.
     (i386/i386-avx512-expedite, i386/i386-avx512-linux-expedite,
     i386/amd64-avx512-expedite, i386/amd64-avx512-linux-expedite,
     i386/x32-avx512-expedite, i386/x32-avx512-linux-expedite): Rename
     expedites.
     (XMLTOC): Rename i386/amd64-avx512-linux.xml, i386/amd64-avx512.xml,
     i386/i386-avx512-linux.xml, i386/i386-avx512.xml,
     i386/x32-avx512-linux.xml, i386/x32-avx512.xml.
     ($(outdir)/i386/i386-avx512.dat): Rename dat file in rule.
     ($(outdir)/i386/i386-avx512-linux.dat): Likewise.
     ($(outdir)/i386/amd64-avx512.dat): Likewise.
     ($(outdir)/i386/amd64-avx512-linux.dat): Likewise.
     ($(outdir)/i386/x32-avx512.dat): Likewise.
     ($(outdir)/i386/x32-avx512-linux.dat): Likewise.
     * features/i386/amd64-avx512-linux.c: Regenerate from renamed XML file.
     * features/i386/amd64-avx512-linux.xml: Rename XML file.
     * features/i386/amd64-avx512.c: Regenerate from renamed XML file.
     * features/i386/amd64-avx512.xml: Rename XML file.
     * features/i386/i386-avx512-linux.c: Regenerate from renamed XML file.
     * features/i386/i386-avx512-linux.xml: Rename XML file.
     * features/i386/i386-avx512.c: Regenerate from renamed XML file.
     * features/i386/i386-avx512.xml: Rename XML file.
     * features/i386/x32-avx512-linux.c: Regenerate from renamed XML file.
     * features/i386/x32-avx512-linux.xml: Rename XML file.
     * features/i386/x32-avx512.c: Regenerate from renamed XML file.
     * features/i386/x32-avx512.xml: Rename XML file.
     * i386-linux-tdep.c (features/i386/i386-avx512-linux.c): Rename to...
     (features/i386/i386-avx-mpx-avx512-linux.c): ...this.
     (i386_linux_core_read_description): Rename X86_XSTATE_MPX_AVX512_MASK,
     X86_XSTATE_AVX512_MASK, tdesc_i386_avx512_linux.
     (_initialize_i386_linux_tdep): Rename initialize_tdesc_i386_avx512_linux.
     * i386-linux-tdep.h (tdesc_i386_avx512_linux): Rename to...
     (tdesc_i386_avx_mpx_avx512_linux): ...this.
     * i386-tdep.c (features/i386/i386-avx512.c): Rename to...
     (features/i386/i386-avx-mpx-avx512.c): ...this.
     (i386_register_reggroup_p): Rename X86_XSTATE_AVX512_MASK.
     (i386_validate_tdesc_p): Likewise.
     (i386_target_description): Rename X86_XSTATE_MPX_AVX512_MASK,
     tdesc_i386_avx512.
     (_initialize_i386_tdep): Rename initialize_tdesc_i386_avx512.
     * regformats/i386/amd64-avx512-linux.dat: Regenerate from renamed XML
     file.
     * regformats/i386/amd64-avx512.dat: Likewise.
     * regformats/i386/i386-avx512-linux.dat: Likewise.
     * regformats/i386/i386-avx512.dat: Likewise.
     * regformats/i386/x32-avx512-linux.dat: Likewise.
     * regformats/i386/x32-avx512.dat: Likewise.
     * x86-Linux-nat.c (x86_linux_read_description): Rename
     X86_XSTATE_MPX_AVX512_MASK, X86_XSTATE_AVX512_MASK,
     tdesc_x32_avx512_linux, tdesc_amd64_avx512_linux, tdesc_i386_avx512_linux.

gdbserver/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * Makefile.in (clean): Rename i386-avx512.c, i386-avx512-linux.c,
     amd64-avx512.c, amd64-avx512-linux.c, x32-avx512.c, x32-avx512-linux.c.
     (i386-avx512-linux-ipa.o): Rename rule and source files.
     (amd64-avx512-linux-ipa.o): Likewise.
     (i386-avx512.c): Rename rule, source fils and dat files.
     (i386-avx512-linux.c): Likewise.
     (amd64-avx512.c): Likewise.
     (amd64-avx512-linux.c): Likewise.
     (x32-avx512.c): Likewise.
     (x32-avx512-linux.c): Likewise.
     * configfure.srv (srv_i386_regobj): Rename i386-avx512.o.
     (i386_linux_regobj): Rename i386-avx512-linux.o.
     (srv_amd64_regobj): Rename amd64-avx512.o, x32-avx512.o.
     (srv_amd64_linux_regobj): Rename amd64-avx512-linux.o,
     x32-avx512-linux.o.
     (ipa_i386_linux_regobj): Rename i386-avx512-linux-ipa.o.
     (ipa_amd64_linux_regobj): Rename amd64-avx512-linux-ipa.o.
     (srv_i386_xmlfiles): Rename i386/i386-avx512.xml.
     (srv_amd64_xmlfiles): Rename i386/amd64-avx512.xml, i386/x32-avx512.xml.
     (srv_i386_linux_xmlfiles): Rename i386/i386-avx512-linux.xml.
     (srv_amd64_linux_xmlfiles): Rename i386/amd64-avx512-linux.xml,
     i386/x32-avx512-linux.xml).
     * linux-amd64-ipa.c (get_ipa_tdesc): Rename X86_TDESC_AVX512 and returned
     tdesc for that case.
     (initialize_low_tracepoint): Rename init_registers_amd64_avx512_linux.
     * linux-i386-ipa.c (get_ipa_tdesc): Rename X86_TDESC_AVX512 and tdesc
     returned for that case.
     (initialize_low_tracepoint): Rename init_registers_i386_avx512_linux.
     * linux-x86-low.c (x86_linux_read_description): Rename
     X86_XSTATE_AVX512_MASK and tdesc returned for that case.
     (x86_get_ipa_tdesc_idx): Rename tdesc_amd64_avx512_linux,
     tdesc_x32_avx512_linux and mask returned for these descriptions.
     Rename tdesc_i386_avx512_linux and mask returned for that description.
     (initialize_low_arch): Rename init_registers_amd64_avx512_linux,
     init_registers_x32_avx512_linux, init_registers_i386_avx512_linux.
     * linux-x86-tdesc.h (enum x86_linux_tdesc): Rename X86_TDESC_AVX512.
     (init_registers_amd64_avx512_linux): Rename to...
     (init_registers_amd64_avx_mpx_avx512_linux): ...this.
     (tdesc_amd64_avx512_linux): Rename to...
     (tdesc_amd64_avx_mpx_avx512_linux): ...this.
     (init_registers_x32_avx512_linux): Rename to...
     (init_registers_x32_avx_mpx_avx512_linux): ...this.
     (tdesc_x32_avx512_linux): Rename to...
     (tdesc_x32_avx_mpx_avx512_linux): ...this.
     (init_registers_i386_avx512_linux): Rename to...
     (init_registers_i386_avx_mpx_avx512_linux): ...this.
     (tdesc_i386_avx512_linux): Rename to...
     (tdesc_i386_avx_mpx_avx512_linux): ...this.

Change-Id: Idb83be3b3b72d5487542d4b568193df2777a3d9d
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
2017-02-17 11:44:24 +01:00
Michael Sturm
ff6527bb52 Change xstate_bv handling to use 8 bytes of data.
The size of the state-component bitmap as specified in
Intel(R) 64 and IA-32 Architectures Software Developer's Manual,
Chapter 13.4.2 is 8 bytes.
So far, the data types used for xstate_bv_p (gdb_byte*),
clear_bv (unsigned int) and tdep->xcr0 (uint64_t) were
inconsistent. But, since the xstate components were still
fitting into a single byte, the code still worked
as expected.
However, with the addition of the PKU feature (bit 9),
using one byte for the bitmap will no longer be sufficient.

This patch changes related code to use 64 bit data types
consistently and changes read/write acces of the XSAVE
header in the xsave buffer to use the endianess-aware
functions extract_unsigned_integer and store_unsigned_integer.
This is required to make sure that eventual differences
in endianess between host and target are taken care off.

gdb/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * i387-tdep.c (i387_supply_xsave): Change type
     of clear_bv to ULONGEST. Replace gdb_byte *xstate_bv_p
     with ULONGEST xstate_bv and use extract_unsigned_integer
     and store_unsigned_integer to read/write its value from
     the xsave buffer.
     (i387_collect_xsave): Replace gdb_byte *xstate_bv_p
     with ULONGEST initial_xstate_bv and use
     extract_unsigned_integer/store_unsigned_integer to
     read/write its value from the xsave buffer.
     Change type of clear_bv to ULONGEST.

gdbserver/Changelog:
2016-04-18  Michael Sturm  <michael.sturm@intel.com>

     * i387-fp.c (i387_cache_to_xsave): Change type of clear_bv to
     unsigned long long.
     (i387_fxsave_to_cache): Likewise.

Change-Id: I0de254158960b4f7bcbc9fe2fb857034fa1f7ca5
Signed-off-by: Michael Sturm <michael.sturm@intel.com>
2017-02-17 11:44:03 +01:00
Walfred Tedeschi
2735833d5f amd64-linux: expose system register FS_BASE and GS_BASE for Linux.
This patch allows examination of the registers FS_BASE and GS_BASE
for Linux Systems running on 64bit. Tests for simple read and write
of the new registers is also added with this patch.

2017-01-27  Walfred Tedeschi  <walfred.tedeschi@intel.com>
	    Richard Henderson  <rth@redhat.com>

gdb/ChangeLog:

	* amd64-linux-nat.c (PTRACE_ARCH_PRCTL): New define.
	(amd64_linux_fetch_inferior_registers): Add case to fetch FS_BASE
	GS_BASE for older kernels.
	(amd64_linux_store_inferior_registers): Add case to store FS_BASE
	GS_BASE for older kernels.
	* amd64-linux-tdep.c (amd64_linux_gregset_reg_offset): Add FS_BASE
	and GS_BASE to the offset table.
	(amd64_linux_register_reggroup_p): Add FS_BASE and GS_BASE to the
	system register group.
	* amd64-nat.c (amd64_native_gregset_reg_offset): Implements case
	for older kernels.
	* amd64-tdep.c (amd64_init_abi): Add segment registers for the
	amd64 ABI.
	* amd64-tdep.h (amd64_regnum): Add AMD64_FSBASE_REGNUM and
	AMD64_GSBASE_REGNUM.
	(AMD64_NUM_REGS): Set to AMD64_GSBASE_REGNUM + 1.
	* features/Makefile (amd64-linux.dat, amd64-avx-linux.dat)
	(amd64-mpx-linux.dat, amd64-avx512-linux.dat, x32-linux.dat)
	(x32-avx-linux.dat, x32-avx512-linux.dat): Add
	i386/64bit-segments.xml in those rules.
	* features/i386/64bit-segments.xml: New file.
	* features/i386/amd64-avx-mpx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx512-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-mpx-linux.xml: Add 64bit-segments.xml.
	* features/i386/x32-avx512-linux.xml: Add 64bit-segments.xml.
	* features/i386/x32-avx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx-linux.c: Regenerated.
	* features/i386/amd64-avx-mpx-linux.c: Regenerated.
	* features/i386/amd64-avx-mpx.c: Regenerated.
	* features/i386/amd64-avx512-linux.c: Regenerated.
	* features/i386/amd64-linux.c: Regenerated.
	* features/i386/amd64-mpx-linux.c: Regenerated.
	* features/i386/i386-avx-mpx-linux.c: Regenerated.
	* features/i386/i386-avx-mpx.c: Regenerated.
	* features/i386/x32-avx-linux.c: Regenerated.
	* features/i386/x32-avx512-linux.c: Regenerated.
	* regformats/i386/amd64-avx-linux.dat: Regenerated.
	* regformats/i386/amd64-avx-mpx-linux.dat: Regenerated.
	* regformats/i386/amd64-avx512-linux.dat: Regenerated.
	* regformats/i386/amd64-linux.dat: Regenerated.
	* regformats/i386/amd64-mpx-linux.dat: Regenerated.
	* regformats/i386/x32-avx-linux.dat: Regenerated.
	* regformats/i386/x32-avx512-linux.dat: Regenerated.
	* regformats/i386/x32-linux.dat: Regenerated.

gdb/doc/ChangeLog:

	* gdb.texinfo (i386 Features): Add system segment registers
	as feature.

gdb/gdbserver/ChangeLog:

	* linux-x86-low.c (x86_64_regmap): Add fs_base and gs_base
	to the register table.
	(x86_fill_gregset): Add support for old kernels for the
	fs_base and gs_base system registers.
	(x86_store_gregset): Likewise.
	* configure.srv (srv_i386_64bit_xmlfiles): Add 64bit-segments.xml.

gdb/testsuite/ChangeLog:

	* gdb.arch/amd64-gs_base.c: New file.
	* gdb.arch/amd64-gs_base.exp: New file.

Change-Id: I2e0eeb93058a2320d4d3b045082643cfe4aff963
Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>
2017-01-27 15:20:14 +01:00
Walfred Tedeschi
239b6d1095 gdbserver-amd64: add HAVE_STRUCT_USER_REGS_STRUCT_(GS|FS)_BASE for gdbserver.
The macros mentioned in the title were set only for GDB. In gdbserver they
were not set until now.  To align the code in GDB and gdbserver these macros
are also added into gdbserver, enabling read and write of gs_base and fs_base
registers from the system in new and old kernels.

2017-01-27  Walfred Tedeschi  <walfred.tedeschi@intel.com>

gdb/gdbserver/ChangeLog:

    	* configure.ac: Check if the fs_base and gs_base members of
    	`struct user_regs_struct' exist.
    	* config.in: Regenerated.
    	* configure: Likewise.
2017-01-27 15:20:11 +01:00
Antoine Tremblay
694b382c67 Fix inferior memory reading in GDBServer for arm/aarch32
Before this patch, some functions would read the inferior memory with
(*the_target)->read_memory, which returns the raw memory, rather than the
shadowed memory.

This is wrong since these functions do not expect to read a breakpoint
instruction and can lead to invalid behavior.

Use of raw memory in get_next_pcs_read_memory_unsigned_integer for example
could lead to get_next_pc returning an invalid pc.

Here's how this would happen:

In non-stop:

the user issues:

thread 1
step&
thread 2
step&
thread 3
step&

In a similar way as non-stop-fair-events.exp (threads are looping).

GDBServer:

 linux_resume is called
 GDBServer has pending events,
 threads are not resumed and single-step breakpoint for thread 1 not installed.

 linux_wait_1 is called with a pending event on thread 2 at pc A
 GDBServer handles the event and calls proceed_all_lwps
 This calls proceed_one_lwp and installs single-step breakpoints on all
 the threads that need one.

 Now since thread 1 needs to install a single-step breakpoint and is at pc B
 (different than thread 2), a step-over is not initiated and get_next_pc
 is called to figure out the next instruction from pc B.

 However it may just be that thread 3 as a single step breakpoint at pc
 B. And thus get_next_pc fails.

This situation is tested with non-stop-fair-events.exp.

In other words, single-step breakpoints are installed in proceed_one_lwp
for each thread.  GDBserver proceeds two threads for resume_step, as
requested by GDB, and the thread proceeded later may see the single-step
breakpoints installed for the thread proceeded just now.

Tested on gdbserver-native/-m{thumb,arm} no regressions.

gdb/gdbserver/ChangeLog:

	* linux-aarch32-low.c (arm_breakpoint_kind_from_pc): Use
	target_read_memory.
	* linux-arm-low.c (get_next_pcs_read_memory_unsigned_integer): Likewise.
	(get_next_pcs_syscall_next_pc): Likewise.
2017-01-09 12:39:07 -05:00
Joel Brobecker
61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00
Luis Machado
7dc53023ec Fix incorrect reference to source files
gdb/gdbserver/ChangeLog:

2016-12-23  Luis Machado  <lgustavo@codesourcery.com>

	* win32-i386-low.c: Fix incorrect reference to a couple source files.
	* nto-x86-low.c: Likewise.
2016-12-23 10:46:38 -06:00