diff options
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_linux.cc')
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_linux.cc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc index 24707c74d48..ab65e2db57d 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc @@ -77,6 +77,20 @@ extern char **environ; // provided by crt1 #include <sys/signal.h> #endif +#ifndef __GLIBC_PREREQ +#define __GLIBC_PREREQ(x, y) 0 +#endif + +#if SANITIZER_LINUX && __GLIBC_PREREQ(2, 16) +# define SANITIZER_USE_GETAUXVAL 1 +#else +# define SANITIZER_USE_GETAUXVAL 0 +#endif + +#if SANITIZER_USE_GETAUXVAL +#include <sys/auxv.h> +#endif + #if SANITIZER_LINUX // <linux/time.h> struct kernel_timeval { @@ -805,6 +819,8 @@ uptr GetPageSize() { return 4096; #elif SANITIZER_LINUX && (defined(__x86_64__) || defined(__i386__)) return EXEC_PAGESIZE; +#elif SANITIZER_USE_GETAUXVAL + return getauxval(AT_PAGESZ); #else return sysconf(_SC_PAGESIZE); // EXEC_PAGESIZE may not be trustworthy. #endif |
