Try to use the CWD if the path to the GCDA output is not available (e.g., the
executable has been moved to another machine). If that's not available
(read-only or something), then exit gracefully.
<rdar://problem/11111686>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153538 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/libprofile/GCDAProfiling.c b/runtime/libprofile/GCDAProfiling.c
index 4ffb12b..712dba0 100644
--- a/runtime/libprofile/GCDAProfiling.c
+++ b/runtime/libprofile/GCDAProfiling.c
@@ -113,6 +113,20 @@
recursive_mkdir(filename);
output_file = fopen(filename, "wb");
+ if (!output_file) {
+ filename[0] = '\0'; /* The size of filename should be big enough. */
+ char *cptr = strrchr(orig_filename, '/');
+ strcat(filename, cptr ? cptr + 1 : orig_filename);
+ output_file = fopen(filename, "wb");
+
+ if (!output_file) {
+ fprintf(stderr, "LLVM profiling runtime: while opening '%s': ",
+ filename);
+ perror("");
+ exit(1);
+ }
+ }
+
/* gcda file, version 404*, stamp LLVM. */
#ifdef __APPLE__
fwrite("adcg*204MVLL", 12, 1, output_file);