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* gdbthread.h (struct thread_info): New `pending_follow' field.
	* thread.c (new_thread): New function.
	(add_thread_silent): Use it.
	* breakpoint.c (internal_breakpoint_number): New global, moved
	from inside...
	(create_internal_breakpoint): ... this.
	(clone_momentary_breakpoint): New.
	* breakpoint.h (clone_momentary_breakpoint): Declare.
	* infrun.c (nullify_last_target_wait_ptid): Move declaration
	higher.
	(pending_follow): Delete.
	(follow_fork): Handle pending follow fork event here.  Moved the
	preserving of thread stepping state here.
	(resume): Don't handle pending follow fork events here.  Only
	install the inferior's terminal modes if we're about to resume it.
	(proceed): Handle possible pending follow fork events here.
	(init_wait_for_inferior): No need to clear pending_follow anymore,
	it's gone.
	(handle_inferior_event): Adjust to per-thread `pending_follow'.
	Call `follow_fork' to handle following the fork.  If the
	follow-fork is cancelled, stop stepping.
	* linux-nat.c (linux_child_follow_fork): Adjust to per-thread
	`pending_follow' events.  Remove code that handled preserving the
	thread stepping state.
	* inf-ptrace.c (inf_ptrace_follow_fork): Ditto.
	* inf-ttrace.c (inf_ttrace_follow_fork): Ditto.

gdb/testsuite/
	* gdb.threads/fork-thread-pending.c: New.
	* gdb.threads/fork-thread-pending.exp: New.
This commit is contained in:
Pedro Alves
2009-05-24 18:00:08 +00:00
parent e27d73f6b0
commit e58b0e63bb
12 changed files with 540 additions and 169 deletions
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40
gdb/breakpoint.c
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@ -1456,10 +1456,11 @@ reattach_breakpoints (int pid)
return 0;
}
static int internal_breakpoint_number = -1;
static struct breakpoint *
create_internal_breakpoint (CORE_ADDR address, enum bptype type)
{
static int internal_breakpoint_number = -1;
struct symtab_and_line sal;
struct breakpoint *b;
@ -5007,6 +5008,43 @@ set_momentary_breakpoint (struct symtab_and_line sal, struct frame_id frame_id,
return b;
}
/* Make a deep copy of momentary breakpoint ORIG. Returns NULL if
ORIG is NULL. */
struct breakpoint *
clone_momentary_breakpoint (struct breakpoint *orig)
{
struct breakpoint *copy;
/* If there's nothing to clone, then return nothing. */
if (orig == NULL)
return NULL;
copy = set_raw_breakpoint_without_location (orig->type);
copy->loc = allocate_bp_location (copy);
set_breakpoint_location_function (copy->loc);
copy->loc->requested_address = orig->loc->requested_address;
copy->loc->address = orig->loc->address;
copy->loc->section = orig->loc->section;
if (orig->source_file == NULL)
copy->source_file = NULL;
else
copy->source_file = xstrdup (orig->source_file);
copy->line_number = orig->line_number;
copy->frame_id = orig->frame_id;
copy->thread = orig->thread;
copy->enable_state = bp_enabled;
copy->disposition = disp_donttouch;
copy->number = internal_breakpoint_number--;
update_global_location_list_nothrow (0);
return copy;
}
struct breakpoint *
set_momentary_breakpoint_at_pc (CORE_ADDR pc, enum bptype type)
{