Reland "[compiler-rt] Intercept the bcmp() function."

Fix test issues on darwin: The REQUIRES for the test should be the same as the
guard for whether we intercept bcmp.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355204 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 1 deletions

diff --git a/test/sanitizer_common/TestCases/Posix/weak_hook_test.cc b/test/sanitizer_common/TestCases/Posix/weak_hook_test.cc
index 9176a524d..ba98f47b3 100644
--- a/test/sanitizer_common/TestCases/Posix/weak_hook_test.cc
+++ b/test/sanitizer_common/TestCases/Posix/weak_hook_test.cc
@@ -6,8 +6,11 @@
 // XFAIL: lsan
 // XFAIL: ubsan
 
-#include <string.h>
 #include <assert.h>
+#include <string.h>
+#if defined(_GNU_SOURCE)
+#include <strings.h> // for bcmp
+#endif
 
 bool seen_memcmp, seen_strncmp, seen_strncasecmp, seen_strcmp, seen_strcasecmp,
     seen_strstr, seen_strcasestr, seen_memmem;
@@ -59,6 +62,12 @@ int main() {
   int_sink = memcmp(s1, s2, sizeof(s2));
   assert(seen_memcmp);
 
+#if (defined(__linux__) && !defined(__ANDROID__) && defined(_GNU_SOURCE)) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  seen_memcmp = false;
+  int_sink = bcmp(s1, s2, sizeof(s2));
+  assert(seen_memcmp);
+#endif
+
   int_sink = strncmp(s1, s2, sizeof(s2));
   assert(seen_strncmp);