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Don't compare the pid returned from 'wait' against inferior_ptid.

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'inf_ptrace::wait' needs to discard termination events reported by
detached child processes.  Previously it compared the returned pid
against the pid in inferior_ptid to determine if a termination event
should be discarded or reported.  The multi-target changes cleared
inferior_ptid to null_ptid in 'wait' target methods, so this was
always failing and never reporting exit events.  Instead, report
termination events whose pid matches any inferior belonging to the
current target.

Several tests started failing on FreeBSD after the multi-target
changes and pass again after this change.

gdb/ChangeLog:

	* inf-ptrace.c (inf_ptrace_target::wait): Don't compare against
	inferior_ptid.
This commit is contained in:
John Baldwin
2020-07-09 12:40:40 -07:00
parent 39776b1117
commit f37e5866aa
2 changed files with 6 additions and 1 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2020-07-09 John Baldwin <jhb@FreeBSD.org>
* inf-ptrace.c (inf_ptrace_target::wait): Don't compare against
inferior_ptid.
2020-07-09 John Baldwin <jhb@FreeBSD.org>
* fbsd-tdep.c (fbsd_print_auxv_entry): Handle AT_FREEBSD_ARGC,

2
gdb/inf-ptrace.c
View File

@ -347,7 +347,7 @@ inf_ptrace_target::wait (ptid_t ptid, struct target_waitstatus *ourstatus,
}
/* Ignore terminated detached child processes. */
if (!WIFSTOPPED (status) && pid != inferior_ptid.pid ())
if (!WIFSTOPPED (status) && find_inferior_pid (this, pid) == nullptr)
pid = -1;
}
while (pid == -1);