Files
binutils-gdb/gdb/testsuite/gdb.base/attach-non-pgrp-leader.c
Pedro Alves 46f67f80dd Test attaching to a process that isn't a process group leader
The patch at
<https://sourceware.org/ml/gdb-patches/2017-11/msg00039.html> was
proposing to add an assertion to child_terminal_init that turns out
would fail if you tried to attach to a process that isn't a process
group leader.

Since the testsuite failed to catch the problem, this commit adds a
new testcase that would catch it, like:

  (gdb) attach 12415
  Attaching to program: build/gdb/testsuite/outputs/gdb.base/attach-non-pgrp-leader/attach-non-pgrp-leader, process 12415
  src/gdb/inflow.c:180: internal-error: void child_terminal_init(target_ops*): Assertion `getpgid (inf->pid) == inf->pid' failed.
  A problem internal to GDB has been detected,
  further debugging may prove unreliable.
  Quit this debugging session? (y or n) FAIL: gdb.base/attach-non-pgrp-leader.exp: child: attach to child (GDB internal error)

gdb/testsuite/ChangeLog:
2017-11-06  Pedro Alves  <palves@redhat.com>

	* gdb.base/attach-non-pgrp-leader.c: New.
	* gdb.base/attach-non-pgrp-leader.exp: New.
2017-11-06 16:32:04 +00:00

46 lines
1.0 KiB
C

/* This testcase is part of GDB, the GNU debugger.
Copyright 2017 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <unistd.h>
/* GDB reads this to figure out the child's PID. */
pid_t child_pid;
void
marker (void)
{
}
int
main ()
{
alarm (60);
child_pid = fork ();
if (child_pid == -1)
return 1;
while (1)
{
marker ();
usleep (1000);
}
return 0;
}