w.h:
#pragma GCC system_header
typedef __SIZE_TYPE__ size_t;
extern void *memset (void *__s, int __c, size_t __n)
__attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1)));
extern __inline __attribute__ ((__always_inline__))
__attribute__ ((__artificial__))
void *
__attribute__ ((__nothrow__))
memset (void *__dest, int __ch, size_t __len)
{
return __builtin___memset_chk (__dest, __ch, __len, __builtin_object_size
(__dest, 0));
}
w.c:
#include "w.h"
static inline void
test (char *p)
{
memset (p, 0, 6);
}
int
main (void)
{
char buf[4];
test (buf);
memset (buf, 0, 6);
return 0;
}
gcc 4.3 used to emit 2 warnings, gcc 4.4 and trunk only one (but both 4.3 and
4.4+ emit two __memset_chk calls that will always __chk_fail at runtime).
--
Summary: [4.4/4.5 Regression] Fortification warning no longer
emitted in inlines
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40340
