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Address sanitization

include/mem/asan.h View source View on GitHub

Functions

Section titled “Functions”

asan_init

Section titled “asan_init”
void asan_init(void);

asan_poison

Section titled “asan_poison”
void asan_poison(void *addr, size_t size);

asan_unpoison

Section titled “asan_unpoison”
void asan_unpoison(void *addr, size_t size);

Macros

Section titled “Macros”

ASAN_SHADOW_SCALE

Section titled “ASAN_SHADOW_SCALE”
#define ASAN_SHADOW_SCALE 3ULL /* 1 shadow byte per 8 real bytes */

ASAN_SHADOW_OFFSET

Section titled “ASAN_SHADOW_OFFSET”
#define ASAN_SHADOW_OFFSET \
    0xfffffc0000000000ULL /* fixed virtual base for shadow memory */

ASAN_REDZONE

Section titled “ASAN_REDZONE”
#define ASAN_REDZONE 16   /* optional redzone per allocation */

ASAN_POISON_VALUE

Section titled “ASAN_POISON_VALUE”
#define ASAN_POISON_VALUE 0xFF

ASAN_ABORT_IF_NOT_READY

Section titled “ASAN_ABORT_IF_NOT_READY”
#define ASAN_ABORT_IF_NOT_READY() \
    do { \
        if (!asan_ready) \
            return; \
    } while (0)

asan_log

Section titled “asan_log”
#define asan_log(lvl, fmt, ...) \
    log(LOG_SITE(asan), LOG_HANDLE(asan), lvl, fmt, ##__VA_ARGS__)

asan_err

Section titled “asan_err”
#define asan_err(fmt, ...) asan_log(LOG_ERROR, fmt, ##__VA_ARGS__)

asan_warn

Section titled “asan_warn”
#define asan_warn(fmt, ...) asan_log(LOG_WARN, fmt, ##__VA_ARGS__)

asan_info

Section titled “asan_info”
#define asan_info(fmt, ...) asan_log(LOG_INFO, fmt, ##__VA_ARGS__)

asan_debug

Section titled “asan_debug”
#define asan_debug(fmt, ...) asan_log(LOG_DEBUG, fmt, ##__VA_ARGS__)

asan_trace

Section titled “asan_trace”
#define asan_trace(fmt, ...) asan_log(LOG_TRACE, fmt, ##__VA_ARGS__)