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[sanitizer_common] Intercept timespec_get except for hwasan (#117080)

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Intercept timespec_get for all sanitizers except for hwasan
This commit is contained in:
Thurston Dang
2024-11-21 12:29:18 -08:00
committed by GitHub
parent b89e774672
commit 9ba6672b9f
3 changed files with 24 additions and 0 deletions
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3
compiler-rt/lib/hwasan/hwasan_platform_interceptors.h
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@@ -209,6 +209,9 @@
#undef SANITIZER_INTERCEPT_TIME
#define SANITIZER_INTERCEPT_TIME 0
#undef SANITIZER_INTERCEPT_TIMESPEC_GET
#define SANITIZER_INTERCEPT_TIMESPEC_GET 0
#undef SANITIZER_INTERCEPT_GLOB
#define SANITIZER_INTERCEPT_GLOB 0

20
compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
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@@ -2389,6 +2389,25 @@ INTERCEPTOR(int, setitimer, int which, const void *new_value, void *old_value) {
#define INIT_GETITIMER
#endif
#if SANITIZER_INTERCEPT_TIMESPEC_GET
INTERCEPTOR(int, timespec_get, struct __sanitizer_timespec *ts, int base) {
void *ctx;
COMMON_INTERCEPTOR_ENTER(ctx, timespec_get, ts, base);
// We don't yet know if ts is addressable, so we use our own scratch buffer
struct __sanitizer_timespec ts_local;
int res = REAL(timespec_get)(&ts_local, base);
if (res) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ts,
sizeof(struct __sanitizer_timespec));
internal_memcpy(ts, &ts_local, sizeof(struct __sanitizer_timespec));
}
return res;
}
# define INIT_TIMESPEC_GET COMMON_INTERCEPT_FUNCTION(timespec_get);
#else
# define INIT_TIMESPEC_GET
#endif
#if SANITIZER_INTERCEPT_GLOB
static void unpoison_glob_t(void *ctx, __sanitizer_glob_t *pglob) {
COMMON_INTERCEPTOR_WRITE_RANGE(ctx, pglob, sizeof(*pglob));
@@ -10324,6 +10343,7 @@ static void InitializeCommonInterceptors() {
INIT_TIMER_CREATE;
INIT_GETITIMER;
INIT_TIME;
INIT_TIMESPEC_GET;
INIT_GLOB;
INIT_GLOB64;
INIT___B64_TO;

1
compiler-rt/lib/sanitizer_common/sanitizer_platform_interceptors.h
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@@ -263,6 +263,7 @@ SANITIZER_WEAK_IMPORT void *aligned_alloc(__sanitizer::usize __alignment,
#define SANITIZER_INTERCEPT_TIMER_CREATE SI_GLIBC
#define SANITIZER_INTERCEPT_GETITIMER SI_POSIX
#define SANITIZER_INTERCEPT_TIME SI_POSIX
#define SANITIZER_INTERCEPT_TIMESPEC_GET SI_LINUX
#define SANITIZER_INTERCEPT_GLOB (SI_GLIBC || SI_SOLARIS)
#define SANITIZER_INTERCEPT_GLOB64 SI_GLIBC
#define SANITIZER_INTERCEPT___B64_TO SI_LINUX_NOT_ANDROID