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-rw-r--r--runtime/libprofile/GCDAProfiling.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/runtime/libprofile/GCDAProfiling.c b/runtime/libprofile/GCDAProfiling.c
index e066b227c5..ac3a62c79f 100644
--- a/runtime/libprofile/GCDAProfiling.c
+++ b/runtime/libprofile/GCDAProfiling.c
@@ -114,7 +114,11 @@ void llvm_gcda_start_file(const char *orig_filename) {
output_file = fopen(filename, "wb");
/* gcda file, version 404*, stamp LLVM. */
+#ifdef __APPLE__
+ fwrite("adcg*204MVLL", 12, 1, output_file);
+#else
fwrite("adcg*404MVLL", 12, 1, output_file);
+#endif
#ifdef DEBUG_GCDAPROFILING
printf("llvmgcda: [%s]\n", orig_filename);