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| author | Karl Berry <karl@freefriends.org> | 2021-10-20 06:54:34 -0700 |
|---|---|---|
| committer | Karl Berry <karl@freefriends.org> | 2021-10-20 06:54:34 -0700 |
| commit | 4aaab7c66cf7711863f1023f3670627c07394ef5 (patch) | |
| tree | 074c86dcf0b5fb6b8c0918f8c6e8900906eaef70 /lib | |
| parent | 107c945430f8479c98dbfcc2b6947fb22fc7a4b5 (diff) | |
| download | gnulib-4aaab7c66cf7711863f1023f3670627c07394ef5.tar.gz | |
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Diffstat (limited to 'lib')
| -rw-r--r-- | lib/cdefs.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/cdefs.h b/lib/cdefs.h index 4dac9d264d..f6ab95ab81 100644 --- a/lib/cdefs.h +++ b/lib/cdefs.h @@ -605,12 +605,22 @@ _Static_assert (0, "IEEE 128-bits long double requires redirection on this platf size-index is not provided: access (access-mode, <ref-index> [, <size-index>]) */ # define __attr_access(x) __attribute__ ((__access__ x)) +/* For _FORTIFY_SOURCE == 3 we use __builtin_dynamic_object_size, which may + use the access attribute to get object sizes from function definition + arguments, so we can't use them on functions we fortify. Drop the object + size hints for such functions. */ +# if __USE_FORTIFY_LEVEL == 3 +# define __fortified_attr_access(a, o, s) __attribute__ ((__access__ (a, o))) +# else +# define __fortified_attr_access(a, o, s) __attr_access ((a, o, s)) +# endif # if __GNUC_PREREQ (11, 0) # define __attr_access_none(argno) __attribute__ ((__access__ (__none__, argno))) # else # define __attr_access_none(argno) # endif #else +# define __fortified_attr_access(a, o, s) # define __attr_access(x) # define __attr_access_none(argno) #endif |