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| author | Maciej W. Rozycki <macro@wdc.com> | 2020-08-31 14:26:47 +0100 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2020-09-07 17:01:06 +0000 |
| commit | 3357087b2a95a33dbb38579c9bf7b23f1f85c7a1 (patch) | |
| tree | a286e80adaa7f74aa4caa80176e666412ee4db90 /string | |
| parent | 7b51d9f69e742d29b335f4ced07ed0f191b12f82 (diff) | |
| download | glibc-3357087b2a95a33dbb38579c9bf7b23f1f85c7a1.tar.gz glibc-3357087b2a95a33dbb38579c9bf7b23f1f85c7a1.tar.xz glibc-3357087b2a95a33dbb38579c9bf7b23f1f85c7a1.zip | |
string: Fix GCC 11 `-Werror=stringop-overread' error
Fix a compilation error:
In function '__rawmemchr',
inlined from '__rawmemchr' at rawmemchr.c:27:1:
rawmemchr.c:36:12: error: 'memchr' specified bound 18446744073709551615 exceeds maximum object size 9223372036854775807 [-Werror=stringop-overread]
36 | return memchr (s, c, (size_t)-1);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
../o-iterator.mk:9: recipe for target '.../string/rawmemchr.o' failed
introduced with GCC 11 commit d14c547abd48 ("Add -Wstringop-overread
for reading past the end by string functions.").
Diffstat (limited to 'string')
| -rw-r--r-- | string/rawmemchr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/string/rawmemchr.c b/string/rawmemchr.c index b62d285d7e..d6ce8209be 100644 --- a/string/rawmemchr.c +++ b/string/rawmemchr.c @@ -32,6 +32,10 @@ RAWMEMCHR (const void *s, int c) PTRDIFF_MAX; the use of SIZE_MAX is deliberate here. */ DIAG_IGNORE_NEEDS_COMMENT (8, "-Wstringop-overflow="); #endif +#if __GNUC_PREREQ (11, 0) + /* Likewise GCC 11, with a different warning option. */ + DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread"); +#endif if (c != '\0') return memchr (s, c, (size_t)-1); DIAG_POP_NEEDS_COMMENT; |