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| author |   Joseph Myers <joseph@codesourcery.com> | 2017-12-18 22:52:41 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-12-18 22:52:41 +0000 |
| commit | 1421f39b7eadd3b5fbd2a3f2da1fc006b69fbc42 (patch) | |
| tree | 94de853f9f553aa69e99c9f6556604ee2defa011 /string | |
| parent | Pass -no-pie to GCC only if GCC defaults to PIE [BZ #22614] (diff) | |
| download | glibc-1421f39b7eadd3b5fbd2a3f2da1fc006b69fbc42.tar.gz glibc-1421f39b7eadd3b5fbd2a3f2da1fc006b69fbc42.tar.bz2 glibc-1421f39b7eadd3b5fbd2a3f2da1fc006b69fbc42.zip | |
Disable strncat test array-bounds warnings for GCC 8.
Some strncat tests fail to build with GCC 8 because of -Warray-bounds
warnings. These tests are deliberately test over-large size arguments
passed to strncat, and already disable -Wstringop-overflow warnings,
but now the warnings for these tests come under -Warray-bounds so that
option needs disabling for them as well, which this patch does (with
an update on the comments; the DIAG_IGNORE_NEEDS_COMMENT call for
-Warray-bounds doesn't need to be conditional itself, because that
option is supported by all versions of GCC that can build glibc).
Tested compilation with build-many-glibcs.py for aarch64-linux-gnu.
* string/tester.c (test_strncat): Also disable -Warray-bounds
warnings for two tests.
Diffstat (limited to 'string')
| -rw-r--r-- | string/tester.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/string/tester.c b/string/tester.c index 66b11515b0..02ea8e1e16 100644 --- a/string/tester.c +++ b/string/tester.c @@ -387,9 +387,11 @@ test_strncat (void) DIAG_PUSH_NEEDS_COMMENT; #if __GNUC_PREREQ (7, 0) /* GCC 7 warns about the size passed to strncat being larger than - the size of the buffer; this is deliberately tested here.. */ + the size of the buffer; this is deliberately tested here; GCC 8 + gives a -Warray-bounds warning about this. */ DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); #endif + DIAG_IGNORE_NEEDS_COMMENT (8, "-Warray-bounds"); (void) strncat (one, two, 99); DIAG_POP_NEEDS_COMMENT; equal (one, "ghef", 5); /* Basic test encore. */ @@ -480,9 +482,11 @@ test_strncat (void) #if __GNUC_PREREQ (7, 0) /* GCC 7 warns about the size passed to strncat being larger than the size of the buffer; this is - deliberately tested here.. */ + deliberately tested here; GCC 8 gives a -Warray-bounds + warning about this. */ DIAG_IGNORE_NEEDS_COMMENT (7, "-Wstringop-overflow="); #endif + DIAG_IGNORE_NEEDS_COMMENT (8, "-Warray-bounds"); check (strncat (buf1 + n2, buf2 + n1, ~((size_t) 0) - n4) == buf1 + n2, ntest); DIAG_POP_NEEDS_COMMENT; |