Only do the deliberate crash via undefined behaviour (which the compiler
is quite right to warn us about!) if raise() isn't available.
The pointer needs to be volatile otherwise the compiler is free to remove
the store.
Part-of: https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/275
Reviewed-by: Simon McVittie <smcv@collabora.com>
It's only used in test code. We have to put it in its own translation
unit with no non-libc dependencies so that we can compile a copy of it
without AddressSanitizer support, because in a subsequent commit we will
special-case test-segfault to be compiled without using AddressSanitizer,
which would make linking to an AddressSanitizer-instrumented libdbus fail.
Signed-off-by: Simon McVittie <smcv@collabora.com>
Vaguely based on a patch from Thomas Zimmermann, but with a different
solution to RECURSIVE_MARSHAL_WRITE_TRACE, and additionally fixing
a build failure that only occurs when targeting Unix without libsystemd,
and another that occurs when targeting Windows.
Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Reviewed-by: Thomas Zimmermann <tdz@users.sourceforge.net>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=97357
Whenever I forget to turn off corekeeper, the regression tests
take ages to record all test-segfault's crashes.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=83772
Reviewed-by: Alban Crequy <alban.crequy@collabora.co.uk>
dbus/dbus-server-debug-pipe.c, glib/dbus-binding-tool-glib.c
glib/dbus-glib-tool.c, glib/dbus-gparser.c, glib/dbus-gproxy.c
test/test-segfault.c, test/test-utils.c,
test/glib/test-dbus-glib.c, tools/dbus-cleanup-sockets.c
tools/dbus-launch.c, tools/dbus-tree-view.c, tools/dbus-viewer.c:
Various cleanup of dead code and compiler warnings (patch from
Kjartan Maraas <kmaraas at gnome.org>)
* configure.in: Check for socklen_t.
* dbus/dbus-sysdeps.c: Define socklen_t if it's not defined.
* test/test-segfault.c: Add #include <sys/time.h>
* tools/Makefile.am: Add DBUS_X_CFLAGS to the INCLUDES since
dbus-launch needs it.
* bus/dispatch.c (check_segfault_service_activation): add test
for launching an executable that just crashes.
* test/test-segfault.c (main): try setting coredumpsize to 0 so we
don't leave a million cores. We'll see how portable this is.
* dbus/dbus-spawn.c, dbus/dbus-spawn.h: Change dbus_spawn to
return a "babysitter" object that is used to monitor the status of
the spawned process and reap it when required.
* test/test-segfault.c, test/test-exit.c,
test/test-sleep-forever.c: binaries that do various lame things,
used in the test suite.
* dbus/dbus-sysdeps.c: kill _dbus_errno_to_string()
