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Some get_last_target_status tweaks

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- Make get_last_target_status arguments optional.  A following patch
  will add another argument to get_last_target_status (the event's
  target), and passing nullptr when we don't care for some piece of
  info is handier than creating dummy local variables.

- Declare nullify_last_target_wait_ptid in a header, and remove the
  local extern declaration from linux-fork.c.

gdb/ChangeLog:
2020-01-10  Pedro Alves  <palves@redhat.com>

	* break-catch-sig.c (signal_catchpoint_print_it): Don't pass a
	ptid to get_last_target_status.
	* break-catch-syscall.c (print_it_catch_syscall): Don't pass a
	ptid to get_last_target_status.
	* infcmd.c (continue_command): Don't pass a target_waitstatus to
	get_last_target_status.
	(info_program_command): Don't pass a target_waitstatus to
	get_last_target_status.
	* infrun.c (init_wait_for_inferior): Use
	nullify_last_target_wait_ptid.
	(get_last_target_status): Handle nullptr arguments.
	(nullify_last_target_wait_ptid): Clear target_last_waitstatus.
	(print_stop_event): Don't pass a ptid to get_last_target_status.
	(normal_stop): Don't pass a ptid to get_last_target_status.
	* infrun.h (get_last_target_status, set_last_target_status): Move
	comments here and update.
	(nullify_last_target_wait_ptid): Declare.
	* linux-fork.c (fork_load_infrun_state): Remove local extern
	declaration of nullify_last_target_wait_ptid.
	* linux-nat.c (get_detach_signal): Don't pass a target_waitstatus
	to get_last_target_status.
This commit is contained in:
Pedro Alves
2020-01-10 20:05:49 +00:00
parent f3f8ece4b1
commit ab1ddbcf11
8 changed files with 51 additions and 29 deletions
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3
gdb/break-catch-syscall.c
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@ -182,12 +182,11 @@ print_it_catch_syscall (bpstat bs)
syscall is. It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
or TARGET_WAITKIND_SYSCALL_RETURN, and depending on it we
must print "called syscall" or "returned from syscall". */
ptid_t ptid;
struct target_waitstatus last;
struct syscall s;
struct gdbarch *gdbarch = bs->bp_location_at->gdbarch;
get_last_target_status (&ptid, &last);
get_last_target_status (nullptr, &last);
get_syscall_by_number (gdbarch, last.value.syscall_number, &s);