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New function displaced_step_in_progress_thread

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This patch adds a new function displaced_step_in_progress_thread,
which returns whether the thread is in progress of displaced
stepping.

gdb:

2015-11-09  Yao Qi  <yao.qi@linaro.org>

	* infrun.c (displaced_step_in_progress_thread): New function.
	(handle_inferior_event_1): Call it.
This commit is contained in:
Yao Qi
2015-11-09 14:39:56 +00:00
parent be7fe1cddb
commit c098766357
2 changed files with 24 additions and 3 deletions
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22
gdb/infrun.c
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@@ -1536,6 +1536,21 @@ displaced_step_in_progress_any_inferior (void)
return 0;
}
/* Return true if thread represented by PTID is doing a displaced
step. */
static int
displaced_step_in_progress_thread (ptid_t ptid)
{
struct displaced_step_inferior_state *displaced;
gdb_assert (!ptid_equal (ptid, null_ptid));
displaced = get_displaced_stepping_state (ptid_get_pid (ptid));
return (displaced != NULL && ptid_equal (displaced->step_ptid, ptid));
}
/* Return true if process PID has a thread doing a displaced step. */
static int
@@ -4946,12 +4961,10 @@ Cannot fill $_exitsignal with the correct signal number.\n"));
{
struct regcache *regcache = get_thread_regcache (ecs->ptid);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
struct displaced_step_inferior_state *displaced
= get_displaced_stepping_state (ptid_get_pid (ecs->ptid));
/* If checking displaced stepping is supported, and thread
ecs->ptid is displaced stepping. */
if (displaced && ptid_equal (displaced->step_ptid, ecs->ptid))
if (displaced_step_in_progress_thread (ecs->ptid))
{
struct inferior *parent_inf
= find_inferior_ptid (ecs->ptid);
@@ -4970,6 +4983,9 @@ Cannot fill $_exitsignal with the correct signal number.\n"));
if (ecs->ws.kind == TARGET_WAITKIND_FORKED)
{
struct displaced_step_inferior_state *displaced
= get_displaced_stepping_state (ptid_get_pid (ecs->ptid));
/* Restore scratch pad for child process. */
displaced_step_restore (displaced, ecs->ws.value.related_pid);
}