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| author | Dmitry Antipov <dantipov@cloudlinux.com> | 2022-12-09 13:09:44 +0300 |
|---|---|---|
| committer | Azat Khuzhin <azat@libevent.org> | 2023-05-14 20:42:19 +0200 |
| commit | d19690980d4b04f39327f4c1036c776a5081be0c (patch) | |
| tree | dd269c515a73e1ccf217eaedabc910e4edb879a1 | |
| parent | 73037f88f9986163d09ecddff757d85b5478c425 (diff) | |
| download | libevent-d19690980d4b04f39327f4c1036c776a5081be0c.tar.gz | |
Silence weird GCC warning about an uninitialized variable
For the CMake release build with -DEVENT__ENABLE_GCC_WARNINGS=ON
and -DEVENT__DISABLE_MM_REPLACEMENT=ON, GCC version 11 and 12 may
complain about possibly uninitialized variable:
In function ‘event_debug_assert_not_added_’,
inlined from ‘event_assign’ at event.c:2184:2,
inlined from ‘event_new’ at event.c:2276:6:
cc1: error: ‘ev’ may be used uninitialized [-Werror=maybe-uninitialized]
event.c: In function ‘event_new’:
event.c:361:13: note: by argument 1 of type ‘const struct event *’ to event_debug_assert_not_added_.part.0’ declared here
361 | static void event_debug_assert_not_added_(const struct event *ev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This warning is most likely a false positive and can be silenced
by explicitly disabling inlining for 'event_assign()'.
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
| -rw-r--r-- | event.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -2172,6 +2172,10 @@ event_base_once(struct event_base *base, evutil_socket_t fd, short events, } int +/* workaround for -Werror=maybe-uninitialized bug in gcc 11/12 */ +#if defined(__GNUC__) && (__GNUC__ == 11 || __GNUC__ == 12) +__attribute__((noinline)) +#endif event_assign(struct event *ev, struct event_base *base, evutil_socket_t fd, short events, void (*callback)(evutil_socket_t, short, void *), void *arg) { if (!base) |