[test][HWASAN] Force interceptors tests for memcmp and bcmp call interceptor (#71215)

Author: kstoimenov

compiler-rt/test/hwasan/TestCases/bcmp.cpp

@@ -4,25 +4,32 @@
 // RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
 // REQUIRES: !android
 
+#include <assert.h>
 #include <sanitizer/hwasan_interface.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+__attribute__((no_sanitize("hwaddress"))) void
+ForceCallInterceptor(void *p, const void *a, size_t size) {
+  assert(bcmp(p, a, size) == 0);
+}
+
 int main(int argc, char **argv) {
   __hwasan_enable_allocator_tagging();
   char a[] = {static_cast<char>(argc), 2, 3, 4};
   int size = sizeof(a);
   char *p = (char *)malloc(size);
   memcpy(p, a, size);
   free(p);
-  return bcmp(p, a, size);
+  ForceCallInterceptor(p, a, size);
+  return 0;
   // CHECK: HWAddressSanitizer: tag-mismatch on address
   // CHECK: READ of size 4
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-3]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-4]]
   // CHECK: Cause: use-after-free
   // CHECK: freed by thread
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-7]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-8]]
   // CHECK: previously allocated by thread
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-11]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-12]]
 }

compiler-rt/test/hwasan/TestCases/memcmp.cpp

@@ -3,25 +3,32 @@
 // RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
 // RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
 
+#include <assert.h>
 #include <sanitizer/hwasan_interface.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
+__attribute__((no_sanitize("hwaddress"))) void
+ForceCallInterceptor(void *p, const void *a, size_t size) {
+  assert(memcmp(p, a, size) == 0);
+}
+
 int main(int argc, char **argv) {
   __hwasan_enable_allocator_tagging();
   char a[] = {static_cast<char>(argc), 2, 3, 4};
   int size = sizeof(a);
   char *p = (char *)malloc(size);
   memcpy(p, a, size);
   free(p);
-  return memcmp(p, a, size);
+  ForceCallInterceptor(p, a, size);
+  return 0;
   // CHECK: HWAddressSanitizer: tag-mismatch on address
   // CHECK: READ of size 4
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-3]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-4]]
   // CHECK: Cause: use-after-free
   // CHECK: freed by thread
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-7]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-8]]
   // CHECK: previously allocated by thread
-  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-11]]
+  // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memcmp.cpp:[[@LINE-12]]
 }