diff options
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc')
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc index 274e87c3d67..8eb9949f18a 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc @@ -3868,6 +3868,12 @@ INTERCEPTOR(__sanitizer_clock_t, times, void *tms) { #if SANITIZER_INTERCEPT_TLS_GET_ADDR #define INIT_TLS_GET_ADDR COMMON_INTERCEPT_FUNCTION(__tls_get_addr) +// If you see any crashes around this functions, there are 2 known issues with +// it: 1. __tls_get_addr can be called with mis-aligned stack due to: +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58066 +// 2. It can be called recursively if sanitizer code uses __tls_get_addr +// to access thread local variables (it should not happen normally, +// because sanitizers use initial-exec tls model). INTERCEPTOR(void *, __tls_get_addr, void *arg) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, __tls_get_addr, arg); |
