[sanitizer] Add the flag handle_sigfpe that is default true to handle SIGFPE crashes same as SIGSEV crashes, patch by Karl Skomski

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@244136 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 4 deletions

diff --git a/lib/asan/tests/asan_test.cc b/lib/asan/tests/asan_test.cc
index 07d59e09a..63497f08a 100644
--- a/lib/asan/tests/asan_test.cc
+++ b/lib/asan/tests/asan_test.cc
@@ -250,12 +250,24 @@ TEST(AddressSanitizer, BitFieldNegativeTest) {
 #if ASAN_NEEDS_SEGV
 namespace {
 
-const char kUnknownCrash[] = "AddressSanitizer: SEGV on unknown address";
+const char kSEGVCrash[] = "AddressSanitizer: SEGV on unknown address";
+const char kFPECrash[] = "AddressSanitizer: FPE on unknown address";
 const char kOverriddenHandler[] = "ASan signal handler has been overridden\n";
 
 TEST(AddressSanitizer, WildAddressTest) {
   char *c = (char*)0x123;
-  EXPECT_DEATH(*c = 0, kUnknownCrash);
+  EXPECT_DEATH(*c = 0, kSEGVCrash);
+}
+
+void division_by_zero() {
+  volatile int one = 1;
+  volatile int zero = 0;
+  volatile int sink;
+  sink = one / zero;
+}
+
+TEST(AddressSanitizer, FPECrashTest) {
+  EXPECT_DEATH(division_by_zero(), kFPECrash);
 }
 
 void my_sigaction_sighandler(int, siginfo_t*, void*) {
@@ -279,10 +291,10 @@ TEST(AddressSanitizer, SignalTest) {
   EXPECT_EQ(0, sigaction(SIGBUS, &sigact, 0));
 #endif
   char *c = (char*)0x123;
-  EXPECT_DEATH(*c = 0, kUnknownCrash);
+  EXPECT_DEATH(*c = 0, kSEGVCrash);
   // ... and signal().
   EXPECT_EQ(0, signal(SIGSEGV, my_signal_sighandler));
-  EXPECT_DEATH(*c = 0, kUnknownCrash);
+  EXPECT_DEATH(*c = 0, kSEGVCrash);
 }
 }  // namespace
 #endif