diff options
Diffstat (limited to 'usr.bin/elfctl/elfctl.c')
| -rw-r--r-- | usr.bin/elfctl/elfctl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/usr.bin/elfctl/elfctl.c b/usr.bin/elfctl/elfctl.c index bcdd1be394a9..04719b487613 100644 --- a/usr.bin/elfctl/elfctl.c +++ b/usr.bin/elfctl/elfctl.c @@ -288,7 +288,7 @@ convert_to_feature_val(char *feature_str, uint32_t *feature_val) static bool edit_file_features(Elf *elf, int phcount, int fd, char *val) { - uint32_t features; + uint32_t features, prev_features; uint64_t off; if (!get_file_features(elf, phcount, fd, &features, &off)) { @@ -296,8 +296,12 @@ edit_file_features(Elf *elf, int phcount, int fd, char *val) return (false); } + prev_features = features; if (!convert_to_feature_val(val, &features)) return (false); + /* Avoid touching file if no change. */ + if (features == prev_features) + return (true); if (lseek(fd, off, SEEK_SET) == -1 || write(fd, &features, sizeof(features)) < |