Die();
}
+static void OnStackUnwind(const SignalContext &sig, const void *,
+ BufferedStackTrace *stack) {
+ GetStackTrace(stack, kStackTraceMax, sig.pc, sig.bp, sig.context,
+ common_flags()->fast_unwind_on_fatal);
+}
+
+static void MsanOnDeadlySignal(int signo, void *siginfo, void *context) {
+ HandleDeadlySignal(siginfo, context, GetTid(), &OnStackUnwind, nullptr);
+}
+
void __msan_init() {
CHECK(!msan_init_is_running);
if (msan_inited) return;
__sanitizer_set_report_path(common_flags()->log_path);
InitializeInterceptors();
+ InstallDeadlySignalHandlers(MsanOnDeadlySignal);
InstallAtExitHandler(); // Needs __cxa_atexit interceptor.
DisableCoreDumperIfNecessary();
CHECK_UNPOISONED(&act->sa_mask, sizeof(act->sa_mask));
}
-static int sigaction_impl(int signo, const __sanitizer_sigaction *act,
- __sanitizer_sigaction *oldact);
-static uptr signal_impl(int signo, uptr cb);
-
-INTERCEPTOR(int, sigaction, int signo, const __sanitizer_sigaction *act,
- __sanitizer_sigaction *oldact) {
- return sigaction_impl(signo, act, oldact);
-}
-
-INTERCEPTOR(int, signal, int signo, uptr cb) {
- cb = signal_impl(signo, cb);
- return REAL(signal)(signo, cb);
-}
-
extern "C" int pthread_attr_init(void *attr);
extern "C" int pthread_attr_destroy(void *attr);
#include "sanitizer_common/sanitizer_platform_interceptors.h"
#include "sanitizer_common/sanitizer_common_interceptors.inc"
+static uptr signal_impl(int signo, uptr cb);
+static int sigaction_impl(int signo, const __sanitizer_sigaction *act,
+ __sanitizer_sigaction *oldact);
+
+#define SIGNAL_INTERCEPTOR_SIGACTION_IMPL(signo, act, oldact) \
+ { return sigaction_impl(signo, act, oldact); }
+
+#define SIGNAL_INTERCEPTOR_SIGNAL_IMPL(func, signo, handler) \
+ { \
+ handler = signal_impl(signo, handler); \
+ return REAL(func)(signo, handler); \
+ }
+
+#include "sanitizer_common/sanitizer_signal_interceptors.inc"
static int sigaction_impl(int signo, const __sanitizer_sigaction *act,
__sanitizer_sigaction *oldact) {
static int inited = 0;
CHECK_EQ(inited, 0);
InitializeCommonInterceptors();
+ InitializeSignalInterceptors();
INTERCEPT_FUNCTION(mmap);
MSAN_MAYBE_INTERCEPT_MMAP64;