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testutils: Use prctl PR_SET_DUMPABLE to silence core dumps on Linux

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Otherwise, crashing tests like assert-msg-test will still report to
pipe-based crash reporting frameworks like systemd-coredump, even though
the RLIMIT_CORE limit is zero.

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2023-07-24 17:08:25 +01:00
parent be2c9220d6
commit 71d44e8d71
2 changed files with 15 additions and 0 deletions
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9
glib/gtestutils.c
View File

@ -34,6 +34,9 @@
#include <stdlib.h> #include <stdlib.h>
#include <stdio.h> #include <stdio.h>
#include <inttypes.h> #include <inttypes.h>
#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H #ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h> #include <sys/resource.h>
#endif #endif
@ -1321,6 +1324,12 @@ g_test_disable_crash_reporting (void)
(void) setrlimit (RLIMIT_CORE, &limit); (void) setrlimit (RLIMIT_CORE, &limit);
#endif #endif
#if defined(HAVE_PRCTL) && defined(PR_SET_DUMPABLE)
/* On Linux, RLIMIT_CORE = 0 is ignored if core dumps are
* configured to be written to a pipe, but PR_SET_DUMPABLE is not. */
(void) prctl (PR_SET_DUMPABLE, 0, 0, 0, 0);
#endif
} }
/* We intentionally parse the command line without GOptionContext /* We intentionally parse the command line without GOptionContext

6
meson.build
View File

@ -381,6 +381,7 @@ headers = [
'sys/mnttab.h', 'sys/mnttab.h',
'sys/mount.h', 'sys/mount.h',
'sys/param.h', 'sys/param.h',
'sys/prctl.h',
'sys/resource.h', 'sys/resource.h',
'sys/select.h', 'sys/select.h',
'sys/statfs.h', 'sys/statfs.h',
@ -695,6 +696,11 @@ if glib_conf.has('HAVE_SYS_STATFS_H') or glib_conf.has('HAVE_SYS_MOUNT_H')
else else
have_func_statfs = false have_func_statfs = false
endif endif
if glib_conf.has('HAVE_SYS_PRCTL_H')
functions += ['prctl']
else
have_func_prctl = false
endif
if host_system == 'windows' if host_system == 'windows'
iphlpapi_dep = cc.find_library('iphlpapi') iphlpapi_dep = cc.find_library('iphlpapi')