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5 Commits

Author SHA1 Message Date
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
Pedro Alves
bfd282882d Convert tid_range_parser and get_number_or_range to classes 
This converts tid_range_parser and get_number_or_range to be classes.
The various tid_range_parser_* and get_number_or_range_* functions
become methods on the respective classes.  Then it updates the users
to follow.

The rationale for the change is that this provides better
encapsulation.  For example, this forced me to think of a better
interface between tid_range_parser and get_number_or_range, since the
former peeked into the latter's internals a bit too much.  That ended
up resulting mostly in these two not-just-straight-1-1 changes:

  void
 -tid_range_parser_skip (struct tid_range_parser *parser)
 +tid_range_parser::skip_range ()
  {
 ...

 -  tid_range_parser_init (parser, parser->range_parser.end_ptr,
 -			 parser->default_inferior);
 +  m_range_parser.skip_range ();
 +  init (m_range_parser.string (), m_default_inferior);
  }

 and:

    /* If we successfully parsed a thread number or finished parsing a
       thread range, switch back to assuming the next TID is
       inferior-qualified.  */
 -  if (parser->range_parser.end_ptr == NULL
 -      || parser->range_parser.string == parser->range_parser.end_ptr)
 +  if (!m_range_parser.in_range ())
      {

For the same reason (encapsulation), this moves the enum
tid_range_state definition to within the tid_parser class's scope,
since that is private implementation detail.

While at it, switch to use "bool" for booleans.

gdb/ChangeLog:
2016-10-13  Pedro Alves  <palves@redhat.com>
	    Tom Tromey  <tom@tromey.com>

	* tid-parse.h (tid_range_parser): New class.
	(enum tid_range_state): Move into tid_range_parser's scope.
	Remove TID_RANGE_ prefix from all values.
	(tid_range_parser_get_tid, tid_range_parser_get_tid_range)
	(tid_range_parser_star_range, tid_range_parser_finished)
	(tid_range_parser_skip, tid_range_parser_qualified): Don't
	declare.
	(tid_is_in_list): Update comment.
	* tid-parse.c (tid_range_parser::tid_range_parser): New.
	(init, finished, get_string, skip, tid_is_qualified)
	(get_tid_or_range, get_tid_range, get_tid, star_range): Rename;
	turn into methods.
	(tid_is_in_list): Adjust.
	* cli/cli-utils.h (number_or_range_parser): New class.
	(init_number_or_range, get_number_or_range)
	(number_range_setup_range): Don't declare.
	* cli/cli-utils.c
	(number_or_range_parser::number_or_range_parser): New.
	(init_number_or_range, get_number_or_range)
	(number_range_setup_range): Rename; turn into methods.
	(number_is_in_list): Adjust.
	* breakpoint.c (map_breakpoint_numbers): Adjust.  Use bool.
	(trace_pass_command, get_tracepoint_by_number): Adjust.
	* breakpoint.h (get_tracepoint_by_number): Adjust.
	* inferior.c (detach_inferior_command, kill_inferior_command)
	(remove_inferior_command): Adjust.
	* linespec.c (decode_line_2): Adjust.
	* memattr.c (mem_enable_command, mem_disable_command)
	(mem_delete_command): Adjust.
	* printcmd.c (map_display_numbers): Adjust.
	* reverse.c (delete_bookmark_command, bookmarks_info): Adjust.
	* thread.c (thread_apply_command): Adjust.
 2016-10-13 01:54:07 +01:00
Pedro Alves
71ef29a86b Star wildcard ranges (e.g., "info thread 2.*") 
Add support for specifying "all threads of inferior N", by writing "*"
as thread number/range in thread ID lists.

E.g., "info threads 2.*" or "thread apply 2.* bt".

gdb/ChangeLog:
2016-01-15  Pedro Alves  <palves@redhat.com>

	* NEWS: Mention star wildcard ranges.
	* cli/cli-utils.c (get_number_or_range): Check state->in_range first.
	(number_range_setup_range): New function.
	* cli/cli-utils.h (number_range_setup_range): New declaration.
	* thread.c (thread_apply_command): Support star TID ranges.
	* tid-parse.c (tid_range_parser_finished)
	(tid_range_parser_string, tid_range_parser_skip)
	(get_tid_or_range, get_tid_or_range): Handle
	TID_RANGE_STATE_STAR_RANGE.
	(tid_range_parser_star_range): New function.
	* tid-parse.h (enum tid_range_state) <TID_RANGE_STATE_STAR_RANGE>:
	New value.
	(tid_range_parser_star_range): New declaration.

gdb/doc/ChangeLog:
2016-01-15  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Threads) <thread ID lists>: Document star ranges.

gdb/testsuite/ChangeLog:
2016-01-15  Pedro Alves  <palves@redhat.com>

	* gdb.multi/tids.exp: Test star wildcard ranges.
 2016-01-15 21:46:23 +00:00
Pedro Alves
3f5b759880 Fix "thread apply $conv_var" and misc other related problems 
This fixes a few bugs in "thread apply".

While this works:

 (gdb) thread apply 1 p 1234

 Thread 1 (Thread 0x7ffff7fc1740 (LWP 14048)):
 $1 = 1234

This doesn't:

 (gdb) thread apply $thr p 1234

 Thread 1 (Thread 0x7ffff7fc1740 (LWP 12039)):
 Invalid thread ID: p 1234
 (gdb)

~~~~

Also, while this works:
 (gdb) thread apply 1
 Please specify a command following the thread ID list

This doesn't:
 (gdb) thread apply $thr
 Thread 1 (Thread 0x7ffff7fc1740 (LWP 12039)):
 [Current thread is 1 (Thread 0x7ffff7fc1740 (LWP 12039))]
 (gdb)

~~~~

And, while this works:
 (gdb) thread apply
 Please specify a thread ID list

This obviously bogus invocation is just silent:
 (gdb) thread apply bt
 (gdb)

gdb/ChangeLog:
2016-01-15  Pedro Alves  <palves@redhat.com>

	* thread.c (thread_apply_command): Use the tid range parser to
	advance past the thread ID list.
	* tid-parse.c (get_positive_number_trailer): New function.
	(parse_thread_id): Use it.
	(get_tid_or_range): Use it.  Return 0 instead of throwing invalid
	thread ID error.
	(get_tid_or_range): Detect negative values.  Return 0 instead of
	throwing invalid thread ID error.

gdb/testsuite/ChangeLog:
2016-01-15  Pedro Alves  <palves@redhat.com>

	* gdb.multi/tids.exp (thr_apply_info_thr_error): Remove "p 1234"
	command from "thread apply" invocation.
	(thr_apply_info_thr_invalid): Default the expected output to the
	input tid list.
	(top level): Add tests that use convenience variables.  Add tests
	for "thread apply" with a valid TID list, but missing the command.
 2016-01-15 21:46:22 +00:00
Pedro Alves
5d5658a1d3 Per-inferior/Inferior-qualified thread IDs 
This commit changes GDB to track thread numbers per-inferior.  Then,
if you're debugging multiple inferiors, GDB displays
"inferior-num.thread-num" instead of just "thread-num" whenever it
needs to display a thread:

 (gdb) info inferiors
   Num  Description       Executable
   1    process 6022     /home/pedro/gdb/tests/threads
 * 2    process 6037     /home/pedro/gdb/tests/threads
 (gdb) info threads
   Id   Target Id         Frame
   1.1  Thread 0x7ffff7fc2740 (LWP 6022) "threads" (running)
   1.2  Thread 0x7ffff77c0700 (LWP 6028) "threads" (running)
   1.3  Thread 0x7ffff7fc2740 (LWP 6032) "threads" (running)
   2.1  Thread 0x7ffff7fc1700 (LWP 6037) "threads" (running)
   2.2  Thread 0x7ffff77c0700 (LWP 6038) "threads" (running)
 * 2.3  Thread 0x7ffff7fc2740 (LWP 6039) "threads" (running)
 (gdb)
...
 (gdb) thread 1.1
 [Switching to thread 1.1 (Thread 0x7ffff7fc2740 (LWP 8155))]
 (gdb)
...

etc.

You can still use "thread NUM", in which case GDB infers you're
referring to thread NUM of the current inferior.

The $_thread convenience var and Python's InferiorThread.num attribute
are remapped to the new per-inferior thread number.  It's a backward
compatibility break, but since it only matters when debugging multiple
inferiors, I think it's worth doing.

Because MI thread IDs need to be a single integer, we keep giving
threads a global identifier, _in addition_ to the per-inferior number,
and make MI always refer to the global thread IDs.  IOW, nothing
changes from a MI frontend's perspective.

Similarly, since Python's Breakpoint.thread and Guile's
breakpoint-thread/set-breakpoint-thread breakpoint methods need to
work with integers, those are adjusted to work with global thread IDs
too.  Follow up patches will provide convenient means to access
threads' global IDs.

To avoid potencially confusing users (which also avoids updating much
of the testsuite), if there's only one inferior and its ID is "1",
IOW, the user hasn't done anything multi-process/inferior related,
then the "INF." part of thread IDs is not shown.  E.g,.:

 (gdb) info inferiors
   Num  Description       Executable
 * 1    process 15275     /home/pedro/gdb/tests/threads
 (gdb) info threads
   Id   Target Id         Frame
 * 1    Thread 0x7ffff7fc1740 (LWP 15275) "threads" main () at threads.c:40
 (gdb) add-inferior
 Added inferior 2
 (gdb) info threads
   Id   Target Id         Frame
 * 1.1  Thread 0x7ffff7fc1740 (LWP 15275) "threads" main () at threads.c:40
 (gdb)

No regressions on x86_64 Fedora 20.

gdb/ChangeLog:
2016-01-13  Pedro Alves  <palves@redhat.com>

	* NEWS: Mention that thread IDs are now per inferior and global
	thread IDs.
	* Makefile.in (SFILES): Add tid-parse.c.
	(COMMON_OBS): Add tid-parse.o.
	(HFILES_NO_SRCDIR): Add tid-parse.h.
	* ada-tasks.c: Adjust to use ptid_to_global_thread_id.
	* breakpoint.c (insert_breakpoint_locations)
	(remove_threaded_breakpoints, bpstat_check_breakpoint_conditions)
	(print_one_breakpoint_location, set_longjmp_breakpoint)
	(check_longjmp_breakpoint_for_call_dummy)
	(set_momentary_breakpoint): Adjust to use global IDs.
	(find_condition_and_thread, watch_command_1): Use parse_thread_id.
	(until_break_command, longjmp_bkpt_dtor)
	(breakpoint_re_set_thread, insert_single_step_breakpoint): Adjust
	to use global IDs.
	* dummy-frame.c (pop_dummy_frame_bpt): Adjust to use
	ptid_to_global_thread_id.
	* elfread.c (elf_gnu_ifunc_resolver_stop): Likewise.
	* gdbthread.h (struct thread_info): Rename field 'num' to
	'global_num.  Add new fields 'per_inf_num' and 'inf'.
	(thread_id_to_pid): Rename thread_id_to_pid to
	global_thread_id_to_ptid.
	(pid_to_thread_id): Rename to ...
	(ptid_to_global_thread_id): ... this.
	(valid_thread_id): Rename to ...
	(valid_global_thread_id): ... this.
	(find_thread_id): Rename to ...
	(find_thread_global_id): ... this.
	(ALL_THREADS, ALL_THREADS_BY_INFERIOR): Declare.
	(print_thread_info): Add comment.
	* tid-parse.h: New file.
	* tid-parse.c: New file.
	* infcmd.c (step_command_fsm_prepare)
	(step_command_fsm_should_stop): Adjust to use the global thread
	ID.
	(until_next_command, until_next_command)
	(finish_command_fsm_should_stop): Adjust to use the global thread
	ID.
	(attach_post_wait): Adjust to check the inferior number too.
	* inferior.h (struct inferior) <highest_thread_num>: New field.
	* infrun.c (handle_signal_stop)
	(insert_exception_resume_breakpoint)
	(insert_exception_resume_from_probe): Adjust to use the global
	thread ID.
	* record-btrace.c (record_btrace_open): Use global thread IDs.
	* remote.c (process_initial_stop_replies): Also consider the
	inferior number.
	* target.c (target_pre_inferior): Clear the inferior's highest
	thread num.
	* thread.c (clear_thread_inferior_resources): Adjust to use the
	global thread ID.
	(new_thread): New inferior parameter.  Adjust to use it.  Set both
	the thread's global ID and the thread's per-inferior ID.
	(add_thread_silent): Adjust.
	(find_thread_global_id): New.
	(find_thread_id): Make static.  Adjust to rename.
	(valid_thread_id): Rename to ...
	(valid_global_thread_id): ... this.
	(pid_to_thread_id): Rename to ...
	(ptid_to_global_thread_id): ... this.
	(thread_id_to_pid): Rename to ...
	(global_thread_id_to_ptid): ... this.  Adjust.
	(first_thread_of_process): Adjust.
	(do_captured_list_thread_ids): Adjust to use global thread IDs.
	(should_print_thread): New function.
	(print_thread_info): Rename to ...
	(print_thread_info_1): ... this, and add new show_global_ids
	parameter.  Handle it.  Iterate over inferiors.
	(print_thread_info): Reimplement as wrapper around
	print_thread_info_1.
	(show_inferior_qualified_tids): New function.
	(print_thread_id): Use it.
	(tp_array_compar): Compare inferior numbers too.
	(thread_apply_command): Use tid_range_parser.
	(do_captured_thread_select): Use parse_thread_id.
	(thread_id_make_value): Adjust.
	(_initialize_thread): Adjust "info threads" help string.
	* varobj.c (struct varobj_root): Update comment.
	(varobj_create): Adjust to use global thread IDs.
	(value_of_root_1): Adjust to use global_thread_id_to_ptid.
	* windows-tdep.c (display_tib): No longer accept an argument.
	* cli/cli-utils.c (get_number_trailer): Make extern.
	* cli/cli-utils.h (get_number_trailer): Declare.
	(get_number_const): Adjust documentation.
	* mi/mi-cmd-var.c (mi_cmd_var_update_iter): Adjust to use global
	thread IDs.
	* mi/mi-interp.c (mi_new_thread, mi_thread_exit)
	(mi_on_normal_stop, mi_output_running_pid, mi_on_resume):
	* mi/mi-main.c (mi_execute_command, mi_cmd_execute): Likewise.
	* guile/scm-breakpoint.c (gdbscm_set_breakpoint_thread_x):
	Likewise.
	* python/py-breakpoint.c (bppy_set_thread): Likewise.
	* python/py-finishbreakpoint.c (bpfinishpy_init): Likewise.
	* python/py-infthread.c (thpy_get_num): Add comment and return the
	per-inferior thread ID.
	(thread_object_getset): Update comment of "num".

gdb/testsuite/ChangeLog:
2016-01-07  Pedro Alves  <palves@redhat.com>

	* gdb.base/break.exp: Adjust to output changes.
	* gdb.base/hbreak2.exp: Likewise.
	* gdb.base/sepdebug.exp: Likewise.
	* gdb.base/watch_thread_num.exp: Likewise.
	* gdb.linespec/keywords.exp: Likewise.
	* gdb.multi/info-threads.exp: Likewise.
	* gdb.threads/thread-find.exp: Likewise.
	* gdb.multi/tids.c: New file.
	* gdb.multi/tids.exp: New file.

gdb/doc/ChangeLog:
2016-01-07  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Threads): Document per-inferior thread IDs,
	qualified thread IDs, global thread IDs and thread ID lists.
	(Set Watchpoints, Thread-Specific Breakpoints): Adjust to refer to
	thread IDs.
	(Convenience Vars): Document the $_thread convenience variable.
	(Ada Tasks): Adjust to refer to thread IDs.
	(GDB/MI Async Records, GDB/MI Thread Commands, GDB/MI Ada Tasking
	Commands, GDB/MI Variable Objects): Update to mention global
	thread IDs.
	* guile.texi (Breakpoints In Guile)
	<breakpoint-thread/set-breakpoint-thread breakpoint>: Mention
	global thread IDs instead of thread IDs.
	* python.texi (Threads In Python): Adjust documentation of
	InferiorThread.num.
	(Breakpoint.thread): Mention global thread IDs instead of thread
	IDs.
 2016-01-13 10:59:43 +00:00