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hurd: Silence warning

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* hurd/hurdsig.c (interrupted_reply_port_location): Use
	DIAG_IGNORE_NEEDS_COMMENT to silence warning with GCC 6 and before.
This commit is contained in:
Samuel Thibault 2018-04-04 02:06:16 +02:00
parent cd104f4ff4
commit e8ef51b171
2 changed files with 10 additions and 0 deletions
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2
ChangeLog
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@ -37,6 +37,8 @@
* sysdeps/mach/hurd/if_index.c (__if_nametoindex): Return ENODEV if
ifname is too long.
* hurd/hurdsig.c (interrupted_reply_port_location): Use
DIAG_IGNORE_NEEDS_COMMENT to silence warning with GCC 6 and before.
2018-04-03 Wilco Dijkstra <wdijkstr@arm.com>

8
hurd/hurdsig.c
View File

@ -33,6 +33,8 @@
#include "hurdmalloc.h" /* XXX */
#include "../locale/localeinfo.h"
#include <libc-diag.h>
const char *_hurdsig_getenv (const char *);
struct mutex _hurd_siglock;
@ -246,8 +248,14 @@ interrupted_reply_port_location (thread_t thread,
/* Faulted trying to read the TCB. */
return NULL;
DIAG_PUSH_NEEDS_COMMENT;
/* GCC 6 and before seem to be confused by the setjmp call inside
_hurdsig_catch_memory_fault and think that we may be returning a second
time to here with portloc uninitialized (but we never do). */
DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
/* Fault now if this pointer is bogus. */
*(volatile mach_port_t *) portloc = *portloc;
DIAG_POP_NEEDS_COMMENT;
if (sigthread)
_hurdsig_end_catch_fault ();