Create the parent directories to place the .gcda files in if they don't exist.
That's kinda weird because the .gcno files are supposed to already be there,
but libgcov does this and somehow Google has managed to depend on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130879 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/libprofile/GCDAProfiling.c b/runtime/libprofile/GCDAProfiling.c
index 13fe0fd..dcf57ab 100644
--- a/runtime/libprofile/GCDAProfiling.c
+++ b/runtime/libprofile/GCDAProfiling.c
@@ -24,6 +24,8 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
/* #define DEBUG_GCDAPROFILING */
@@ -64,6 +66,21 @@
return filename;
}
+static void recursive_mkdir(const char *filename) {
+ char *pathname;
+ int i, e;
+
+ for (i = 1, e = strlen(filename); i != e; ++i) {
+ if (filename[i] == '/') {
+ pathname = malloc(i + 1);
+ strncpy(pathname, filename, i);
+ pathname[i] = '\0';
+ mkdir(pathname, 0750); /* some of these will fail, ignore it. */
+ free(pathname);
+ }
+ }
+}
+
/*
* --- LLVM line counter API ---
*/
@@ -75,6 +92,7 @@
void llvm_gcda_start_file(const char *orig_filename) {
char *filename;
filename = mangle_filename(orig_filename);
+ recursive_mkdir(filename);
output_file = fopen(filename, "wb");
/* gcda file, version 404*, stamp LLVM. */