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Define _FORTIFY_SOURCE in common-defs.h

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This defines _FORTIFY_SOURCE in common-defs.h.  This seems like a
sensible safety measure, and also it may help avoid build problems
with -Wunused-result on distros that already define _FORTIFY_SOURCE by
default.

Tested by the buildbot.

gdb/ChangeLog
2018-08-13  Tom Tromey  <tom@tromey.com>

	* common/common-defs.h (_FORTIFY_SOURCE): Define.
This commit is contained in:
Tom Tromey 2018-08-10 09:03:47 -06:00
parent 98641896ad
commit a97b53dda9
2 changed files with 16 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2018-08-13 Tom Tromey <tom@tromey.com>
* common/common-defs.h (_FORTIFY_SOURCE): Define.
2018-08-13 Alan Hayward <alan.hayward@arm.com>
* aarch64-linux-tdep.c (aarch64_linux_supply_sve_regset): New function.

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gdb/common/common-defs.h
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@ -59,6 +59,18 @@
#define __STDC_LIMIT_MACROS 1
#define __STDC_FORMAT_MACROS 1
/* Some distros enable _FORTIFY_SOURCE by default, which on occasion
has caused build failures with -Wunused-result when a patch is
developed on a distro that does not enable _FORTIFY_SOURCE. We
enable it here in order to try to catch these problems earlier;
plus this seems like a reasonable safety measure. The check for
optimization is required because _FORTIFY_SOURCE only works when
optimization is enabled. */
#if defined __OPTIMIZE__ && __OPTIMIZE__ > 0
#define _FORTIFY_SOURCE 2
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>