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authorJoseph Myers <joseph@codesourcery.com>2019-10-02 17:26:14 +0000
committerJoseph Myers <joseph@codesourcery.com>2019-10-02 17:26:14 +0000
commiteed005270a472fe97e0a93540387bb8c81a8e36b (patch)
tree6b7e7d4f6c95ee0a01f81786e346e2c49b30a5f2 /ChangeLog
parent4973abcba9453d54e8996a55c56ec004b669aa65 (diff)
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Disable warnings in string/tester.c at top level.
string/tester.c contains code that correctly triggers various GCC warnings about dubious uses of string functions (uses that are being deliberately tested there), and duly disables those warnings around the relevant code. A change in GCC mainline resulted in this code failing to compile with a -Warray-bounds error, despite the location with the error having -Warray-bounds already disabled. This has been reported as <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91890>. This patch avoids that problem and possible future issues with these diagnostics by moving all the warning disabling in this file to top level, as suggested by Florian in <https://sourceware.org/ml/libc-alpha/2019-10/msg00033.html>, rather than only doing it locally around specific function calls. Tested with build-many-glibcs.py for aarch64-linux-gnu with GCC mainline (with only the conform/ failures noted in <https://sourceware.org/ml/libc-alpha/2019-10/msg00043.html>). * string/tester.c: Ignore -Warray-bounds and -Wmemset-transposed-args at top level. [__GNUC_PREREQ (7, 0)]: Ignore -Wrestrict and -Wstringop-overflow= at top level. [__GNUC_PREREQ (8, 0)]: Ignore -Wstringop-truncation at top level. (test_stpncpy): Do not ignore warnings here. (test_strncat): Likewise. (test_strncpy): Likewise. (test_memset): Likewise.
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diff --git a/ChangeLog b/ChangeLog
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--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2019-10-02 Joseph Myers <joseph@codesourcery.com>
+
+ * string/tester.c: Ignore -Warray-bounds and
+ -Wmemset-transposed-args at top level.
+ [__GNUC_PREREQ (7, 0)]: Ignore -Wrestrict and -Wstringop-overflow=
+ at top level.
+ [__GNUC_PREREQ (8, 0)]: Ignore -Wstringop-truncation at top level.
+ (test_stpncpy): Do not ignore warnings here.
+ (test_strncat): Likewise.
+ (test_strncpy): Likewise.
+ (test_memset): Likewise.
+
2019-10-02 Ɓukasz Majewski <lukma@denx.de>
* include/time.h: Add #include <bits/types/struct_timeval.h>