This should make the code a bit easier to reason about, and squash some
static analysis warnings.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1767
The static analyser can’t yet work out how `g_autofree` works, so
disable those tests.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1767
The macros for the probes confuse the static analyser, and are often
called with arguments which the analyser things shouldn’t be used any
more (for example, the address of a block of memory which has just been
freed).
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1767
These squash various warnings from `scan-build`. None of them are
legitimate bugs, but some of them do improve code readability a bit.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #1767
It's currently marked only as reachable but Valgrind also finds it as
possible:
==18842== 96 bytes in 1 blocks are possibly lost in loss record 2,029 of 2,284
==18842== at 0x4837B65: calloc (vg_replace_malloc.c:762)
==18842== by 0x49614AD: g_malloc0 (gmem.c:129)
==18842== by 0x4A7013B: type_node_any_new_W (gtype.c:439)
==18842== by 0x4A70609: type_node_fundamental_new_W (gtype.c:550)
==18842== by 0x4A7855A: gobject_init (gtype.c:4406)
==18842== by 0x4A78672: gobject_init_ctor (gtype.c:4493)
Mark all the memcheck leaks as ‘reachable’, so the suppressions will not
apply if that memory is no longer reachable on exit(). This feature was
introduced in Valgrind 3.9, and is documented here:
http://valgrind.org/docs/manual/mc-manual.html#mc-manual.suppfiles
Signed-off-by: Philip Withnall <withnall@endlessm.com>
The Python runtime is not amenable to Valgrind, and leak checking is a
lot less relevant in Python compared to C.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #487
When running tests under valgrind, the valgrind summary is printed in
stderr, and the TAP output is printed in stdout. The valgrind summary is
useful to include in the GitLab test report, so append it to the
textual failure information for failed tests.
I can’t find a better XML element in the [JUnit
schema](https://github.com/windyroad/JUnit-Schema/blob/master/JUnit.xsd)
for representing it.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Helps: #487
Add a separate CI job which runs memcheck on the unit tests. This is
done as a separate job from the main build, since we don’t want it to
interact with code coverage at all.
Currently, failure of this job is ignored. Issue #333 will eventually
fix that.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #487
It’s confusing and often doesn’t help the user. Match the error code and
come up with a more UI-appropriate error message.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This suppression is not caught by glib.supp, so add it:
==21145== 32 bytes in 1 blocks are possibly lost in loss record 1,456 of 2,584
==21145== at 0x4837B65: calloc (vg_replace_malloc.c:762)
==21145== by 0x495825E: g_malloc0 (gmem.c:129)
==21145== by 0x4A6B6EB: type_class_init_Wm (gtype.c:2134)
==21145== by 0x4A6D22A: g_type_class_ref (gtype.c:2950)
==21145== by 0x4A6D1DD: g_type_class_ref (gtype.c:2942)
==21145== by 0x4A5C9C6: g_param_spec_enum (gparamspecs.c:2085)
Instead of letting each directory to find its way to link with libdl,
it is easier to put the check in the top level, so its result can be
used by all directories.
It is a follow-up of https://gitlab.gnome.org/GNOME/glib/merge_requests/810.
The header file was installed when building using autotools, but was
inadvertently omitted in the meson targets.
Luckily, ABI is not impacted, since gnativesocketaddress.c was always
compiled and linked into libgio.
Fixes: #1854
The gobject introspection comments have a reference to an incorrect
class: they have, as 'self', the GSubprocess class instead of
GSubprocessLauncher.
This patch fixes this.
g_settings_backend_watch() uses a weak notify for keeping track of
the target. There's an explanation why this is supposed to be safe but
that explanation is wrong.
The following could happen before:
1. We have the target stored in the watch list
2. The last reference to the target is dropped in thread A and we end up
in g_settings_backend_watch_weak_notify() right before the mutex
3. g_settings_backend_dispatch_signal() is called from another thread B
and gets the mutex before 2.
4. g_weak_ref_init() is called on the target from thread B, which at
this point has a reference count of exactly one (see g_object_unref()
where it calls the weak notifies)
5. Thread A continues at 3. and drops the last reference and destroys
the object. Now the GWeakRef from 4. points to a destroyed object. Note
that GWeakRefs would be cleared before the weak notifies are called
6. At some later point another thread g_weak_ref_get() is called by
g_settings_backend_invoke_closure() and accesses an already destroyed
object with refcount 0 from the GWeakRef created in 4. by thread B (or
worse, already freed memory that was reused).
Solve this by actually storing a GWeakRef of the target in the watch
list and only access the target behind it via the GWeakRef API, and then
pass a strong reference to the notification dispatch code.
The weak notify is only used to remove the (potentially with empty
GWeakRef) target from the list of watches and the only place that
compares the target by pointer instead of going through the GWeakRef
API.
Fixes https://gitlab.gnome.org/GNOME/glib/issues/1870
