22fd09ae99
Program received signal SIGABRT, Aborted. [...] (gdb) gcore foobar Couldn't get registers: No such process. (gdb) info threads [...] (gdb) gcore foobar Saved corefile foobar (gdb) gcore tries to access the exited thread: [Thread 0x7ffff7fce700 (LWP 6895) exited] ptrace(PTRACE_GETREGS, 6895, 0, 0x7fff18167dd0) = -1 ESRCH (No such process) Without the TRY_CATCH protection testsuite FAILs for: gcore .../gdb/testsuite/gdb.threads/gcore-thread0.test Cannot find new threads: debugger service failed (gdb) FAIL: gdb.threads/gcore-thread.exp: save a zeroed-threads corefile + core .../gdb/testsuite/gdb.threads/gcore-thread0.test ".../gdb/testsuite/gdb.threads/gcore-thread0.test" is not a core dump: File format not recognized (gdb) FAIL: gdb.threads/gcore-thread.exp: core0file: re-load generated corefile (bad file format) Maybe the TRY_CATCH could be more inside update_thread_list(). Similar update_thread_list() call is IMO missing in procfs_make_note_section() but I do not have where to verify that change. gdb/ChangeLog 2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com> * linux-tdep.c (linux_corefile_thread_callback): Ignore THREAD_EXITED. (linux_make_corefile_notes): call update_thread_list, protected against exceptions. gdb/testsuite/ChangeLog 2014-08-21 Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.threads/gcore-stale-thread.c: New file. * gdb.threads/gcore-stale-thread.exp: New file.
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2014 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 <pthread.h>
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#include <assert.h>
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static pthread_t main_thread;
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static void *
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start (void *arg)
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{
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int i;
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i = pthread_join (main_thread, NULL);
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assert (i == 0);
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return arg; /* 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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pthread_t thread;
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int i;
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main_thread = pthread_self ();
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i = pthread_create (&thread, NULL, start, NULL);
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assert (i == 0);
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pthread_exit (NULL);
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assert (0);
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return 0;
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}
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