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Warn if user requests __FORTIFY_SOURCE but it is disabled

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[BZ #13979]
        * include/features.h: Warn if user requests __FORTIFY_SOURCE
        checking but the checks are disabled for any reason.
This commit is contained in:
Roland Mc Grath 2012-05-08 19:44:57 +02:00 committed by Andreas Jaeger
parent 4b30f61a1e
commit 05c2c9618f
3 changed files with 16 additions and 6 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2012-05-08 Roland Mc Grath <roland@hack.frob.com>
[BZ #13979]
* include/features.h: Warn if user requests __FORTIFY_SOURCE
checking but the checks are disabled for any reason.
2012-05-08 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/dl-machine.h: Replace Elf64_XXX with ElfW(XXX)

4
NEWS
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@ -23,8 +23,8 @@ Version 2.16
13854, 13871, 13872, 13873, 13879, 13883, 13884, 13885, 13886, 13892,
13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
13938, 13941, 13942, 13963, 13967, 13970, 13973, 14027, 14033, 14034,
14040, 14049, 14055, 14064
13938, 13941, 13942, 13963, 13967, 13970, 13973, 13979, 14027, 14033,
14034, 14040, 14049, 14055, 14064
* ISO C11 support:

12
include/features.h
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@ -325,14 +325,18 @@
# define __USE_REENTRANT 1
#endif
#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 \
&& __GNUC_PREREQ (4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
# if _FORTIFY_SOURCE > 1
#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0
# if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0
# warning _FORTIFY_SOURCE requires compiling with optimization (-O)
# elif !__GNUC_PREREQ (4, 1)
# warning _FORTIFY_SOURCE requires GCC 4.1 or later
# elif _FORTIFY_SOURCE > 1
# define __USE_FORTIFY_LEVEL 2
# else
# define __USE_FORTIFY_LEVEL 1
# endif
#else
#endif
#ifndef __USE_FORTIFY_LEVEL
# define __USE_FORTIFY_LEVEL 0
#endif