diff options
Diffstat (limited to 'lib/sanitizer_common/sanitizer_getauxval.h')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_getauxval.h | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/lib/sanitizer_common/sanitizer_getauxval.h b/lib/sanitizer_common/sanitizer_getauxval.h index 7b255c60b..934e311a7 100644 --- a/lib/sanitizer_common/sanitizer_getauxval.h +++ b/lib/sanitizer_common/sanitizer_getauxval.h @@ -20,21 +20,27 @@ #if SANITIZER_LINUX -#include <features.h> - -#ifndef __GLIBC_PREREQ -#define __GLIBC_PREREQ(x, y) 0 -#endif - -#if __GLIBC_PREREQ(2, 16) || (SANITIZER_ANDROID && __ANDROID_API__ >= 21) -# define SANITIZER_USE_GETAUXVAL 1 -#else -# define SANITIZER_USE_GETAUXVAL 0 -#endif - -#if SANITIZER_USE_GETAUXVAL -#include <sys/auxv.h> -#endif +# include <features.h> + +# ifndef __GLIBC_PREREQ +# define __GLIBC_PREREQ(x, y) 0 +# endif + +# if __GLIBC_PREREQ(2, 16) || (SANITIZER_ANDROID && __ANDROID_API__ >= 21) +# define SANITIZER_USE_GETAUXVAL 1 +# else +# define SANITIZER_USE_GETAUXVAL 0 +# endif + +# if SANITIZER_USE_GETAUXVAL +# include <sys/auxv.h> +# else +// The weak getauxval definition allows to check for the function at runtime. +// This is useful for Android, when compiled at a lower API level yet running +// on a more recent platform that offers the function. +extern "C" SANITIZER_WEAK_ATTRIBUTE +unsigned long getauxval(unsigned long type); // NOLINT +# endif #endif // SANITIZER_LINUX |