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Create the parent directories to place the .gcda files in if they don't exist.

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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
This commit is contained in:
Nick Lewycky 2011-05-04 22:34:29 +00:00
parent baf717a08a
commit 5e436b3b0e
1 changed files with 18 additions and 0 deletions
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18
runtime/libprofile/GCDAProfiling.c
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@ -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 @@ static char *mangle_filename(const char *orig_filename) {
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 @@ static char *mangle_filename(const char *orig_filename) {
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. */