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linux-nat: introduce pending_status_str

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I noticed that some debug log output printing an lwp's pending status
wasn't considering lp->waitstatus.  This fixes it, by introducing a
new pending_status_str function.

Also fix the comment in gdb/linux-nat.h describing
lwp_info::waitstatus and details the description of lwp_info::status
while at it.

Change-Id: I66e5c7a363d30a925b093b195d72925ce5b6b980
Approved-By: Andrew Burgess <aburgess@redhat.com>
This commit is contained in:
Pedro Alves
2021-11-12 20:50:29 +00:00
parent 58c010877e
commit 57573e54af
2 changed files with 23 additions and 7 deletions
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19
gdb/linux-nat.c
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@@ -255,6 +255,19 @@ is_leader (lwp_info *lp)
return lp->ptid.pid () == lp->ptid.lwp ();
}
/* Convert an LWP's pending status to a std::string. */
static std::string
pending_status_str (lwp_info *lp)
{
gdb_assert (lwp_status_pending_p (lp));
if (lp->waitstatus.kind () != TARGET_WAITKIND_IGNORE)
return lp->waitstatus.to_string ();
else
return status_to_str (lp->status);
}
/* LWP accessors. */
@@ -1647,8 +1660,8 @@ linux_nat_target::resume (ptid_t scope_ptid, int step, enum gdb_signal signo)
this thread with a signal? */
gdb_assert (signo == GDB_SIGNAL_0);
linux_nat_debug_printf ("Short circuiting for status 0x%x",
lp->status);
linux_nat_debug_printf ("Short circuiting for status %s",
pending_status_str (lp).c_str ());
if (target_can_async_p ())
{
@@ -3137,7 +3150,7 @@ linux_nat_wait_1 (ptid_t ptid, struct target_waitstatus *ourstatus,
if (lp != NULL)
{
linux_nat_debug_printf ("Using pending wait status %s for %s.",
status_to_str (lp->status).c_str (),
pending_status_str (lp).c_str (),
lp->ptid.to_string ().c_str ());
}