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| author | Stewart Smith <stewart@linux.vnet.ibm.com> | 2015-09-08 15:58:41 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2015-09-08 15:58:41 +1000 |
| commit | 7ba8414262c777bb277ef04bf36b11e9b5d8be58 (patch) | |
| tree | 045b984c17eebb237590a57ca5f6b69c18e6232c | |
| parent | 67301baebfce31641d117eacf920e87f75c64d4f (diff) | |
| download | skiboot-7ba8414262c777bb277ef04bf36b11e9b5d8be58.zip skiboot-7ba8414262c777bb277ef04bf36b11e9b5d8be58.tar.gz skiboot-7ba8414262c777bb277ef04bf36b11e9b5d8be58.tar.bz2 | |
Fix possible passing of -1 to write() in extract-gcov.c
Just print an error and exit() instead
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
| -rw-r--r-- | extract-gcov.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/extract-gcov.c b/extract-gcov.c index 75c1108..c9b82f3 100644 --- a/extract-gcov.c +++ b/extract-gcov.c @@ -128,6 +128,11 @@ static void write_gcda(char *addr, struct gcov_info* gi) printf("Writing %s\n", filename); fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR); + if (fd < 0) { + fprintf(stderr, "Error opening file %s: %d %s\n", + filename, errno, strerror(errno)); + exit(EXIT_FAILURE); + } write_u32(fd, GCOV_DATA_MAGIC); write_u32(fd, be32toh(gi->version)); write_u32(fd, be32toh(gi->stamp)); |