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author | Tom Tromey <tromey@redhat.com> | 2012-11-08 21:16:43 +0000 |
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committer | Tom Tromey <tromey@redhat.com> | 2012-11-08 21:16:43 +0000 |
commit | 9015683b1c9a8d301cd846fcc8bf73726310bd4f (patch) | |
tree | fd705128b6fdec9dbea260b3181dbceca9b8ee80 /gdb/testsuite/gdb.base/siginfo-thread.c | |
parent | ea9f10bb87523d421e6c863a7ec66dfee41692b4 (diff) | |
download | fsf-binutils-gdb-9015683b1c9a8d301cd846fcc8bf73726310bd4f.zip fsf-binutils-gdb-9015683b1c9a8d301cd846fcc8bf73726310bd4f.tar.gz fsf-binutils-gdb-9015683b1c9a8d301cd846fcc8bf73726310bd4f.tar.bz2 |
gdb
* linux-tdep.c (linux_make_siginfo_note): New function.
(linux_make_corefile_notes): Use it.
* corelow.c (get_core_siginfo): New function.
(core_xfer_partial) <TARGET_OBJECT_SIGNAL_INFO>: New case.
gdb/testsuite
* gdb.base/siginfo-obj.exp: Create core file. Test siginfo from
core files, if possible.
* gdb.base/siginfo-thread.c: New file
* gdb.base/siginfo-thread.exp: New file
bfd
* elf.c (elfcore_grok_note) <NT_SIGINFO>: New case; make
pseudosection.
Diffstat (limited to 'gdb/testsuite/gdb.base/siginfo-thread.c')
-rw-r--r-- | gdb/testsuite/gdb.base/siginfo-thread.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/siginfo-thread.c b/gdb/testsuite/gdb.base/siginfo-thread.c new file mode 100644 index 0000000..a47bcb3 --- /dev/null +++ b/gdb/testsuite/gdb.base/siginfo-thread.c @@ -0,0 +1,83 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2004, 2007-2008, 2010-2012 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 <signal.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <unistd.h> +#include <pthread.h> + +static void *p; + +static void +handler (int sig, siginfo_t *info, void *context) +{ + /* Copy to local vars, as the test wants to read them, and si_addr, + etc. may be preprocessor defines. */ + int ssi_errno = info->si_errno; + int ssi_signo = info->si_signo; + int ssi_code = info->si_code; + void *ssi_addr = info->si_addr; + + _exit (0); /* set breakpoint here */ +} + +static void * +segv_thread (void *ptr) +{ + *(int *)ptr = 0; +} + +int +main (void) +{ + pthread_t thr; + + /* Set up unwritable memory. */ + { + size_t len; + len = sysconf(_SC_PAGESIZE); + p = mmap (0, len, PROT_NONE, MAP_ANON|MAP_PRIVATE, -1, 0); + if (p == MAP_FAILED) + { + perror ("mmap"); + return 1; + } + } + /* Set up the signal handler. */ + { + struct sigaction action; + memset (&action, 0, sizeof (action)); + action.sa_sigaction = handler; + action.sa_flags |= SA_SIGINFO; + if (sigaction (SIGSEGV, &action, NULL)) + { + perror ("sigaction"); + return 1; + } + } + + /* Create a thread that will trigger SIGSEGV. */ + pthread_create (&thr, NULL, segv_thread, p); + + pthread_join (thr, NULL); + + return 0; +} |