diff options
Diffstat (limited to 'internal.h')
| -rw-r--r-- | internal.h | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/internal.h b/internal.h index 0d30a1a487..e10fe670d7 100644 --- a/internal.h +++ b/internal.h @@ -69,7 +69,7 @@ extern "C" { #endif #ifndef NO_SANITIZE -#define NO_SANITIZE(x, y) y +# define NO_SANITIZE(x, y) y #endif #ifdef HAVE_VALGRIND_MEMCHECK_H @@ -95,6 +95,60 @@ extern "C" { # define __has_extension __has_feature #endif +#ifdef HAVE_SANITIZER_ASAN_INTERFACE_H +# include <sanitizer/asan_interface.h> +#endif + +#if !__has_feature(address_sanitizer) +# define __asan_poison_memory_region(x, y) +# define __asan_unpoison_memory_region(x, y) +# define __asan_region_is_poisoned(x, y) 0 +#endif + +#ifdef HAVE_SANITIZER_MSAN_INTERFACE_H +# include <sanitizer/msan_interface.h> +#endif + +#if !__has_feature(memory_sanitizer) +# define __msan_allocated_memory(x, y) +# define __msan_poison(x, y) +# define __msan_unpoison(x, y) +# define __msan_unpoison_string(x) +#endif + +static inline void +poison_memory_region(const volatile void *ptr, size_t size) +{ + __msan_poison(ptr, size); + __asan_poison_memory_region(ptr, size); +} + +static inline void +poison_object(VALUE obj) +{ + struct RVALUE *ptr = (void *)obj; + poison_memory_region(ptr, SIZEOF_VALUE); +} + +static inline void +unpoison_memory_region(const volatile void *ptr, size_t size, bool malloc_p) +{ + __asan_unpoison_memory_region(ptr, size); + if (malloc_p) { + __msan_allocated_memory(ptr, size); + } + else { + __msan_unpoison(ptr, size); + } +} + +static inline void +unpoison_object(VALUE obj, bool newobj_p) +{ + struct RVALUE *ptr = (void *)obj; + unpoison_memory_region(ptr, SIZEOF_VALUE, newobj_p); +} + /* Prevent compiler from reordering access */ #define ACCESS_ONCE(type,x) (*((volatile type *)&(x))) |