eb54c8bf08
If the linux_nat_resume's short-circuits the resume because the current thread has a pending status, and, a thread with a higher number was previously stopped for a breakpoint, GDB internal errors, like: /home/pedro/gdb/mygit/src/gdb/linux-nat.c:2590: internal-error: status_callback: Assertion `lp->status != 0' failed. Fix this by make status_callback bail out earlier. GDBserver is already doing the same. New test added that exercises this. gdb/ChangeLog: 2015-03-19 Pedro Alves <palves@redhat.com> * linux-nat.c (status_callback): Return early if the LWP has no status pending. gdb/testsuite/ChangeLog: 2015-03-19 Pedro Alves <palves@redhat.com> * gdb.threads/continue-pending-status.c: New file. * gdb.threads/continue-pending-status.exp: New file.
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2015 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <assert.h>
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pthread_barrier_t barrier;
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#define NUM_THREADS 2
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void *
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thread_function (void *arg)
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{
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/* This ensures that the breakpoint is only hit after both threads
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are created, so the test can always switch to the non-event
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thread when the breakpoint triggers. */
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pthread_barrier_wait (&barrier);
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while (1); /* break here */
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}
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int
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main (void)
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{
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int i;
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pthread_barrier_init (&barrier, NULL, NUM_THREADS);
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for (i = 0; i < NUM_THREADS; i++)
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{
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pthread_t thread;
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int res;
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res = pthread_create (&thread, NULL,
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thread_function, NULL);
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assert (res == 0);
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}
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sleep (300);
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return 0;
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}
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