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| author | Rich Felker <dalias@aerifal.cx> | 2019-12-22 13:25:17 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-12-22 13:25:58 -0500 |
| commit | d01fdc777dd3b5ebcad351ee47d1984d28db31e4 (patch) | |
| tree | 411716159015c345b6c2f0af0f60864f039c6d3f | |
| parent | f9895817321790bef33a56e3b10f3f71d989c23e (diff) | |
| download | musl-d01fdc777dd3b5ebcad351ee47d1984d28db31e4.tar.gz musl-d01fdc777dd3b5ebcad351ee47d1984d28db31e4.tar.bz2 musl-d01fdc777dd3b5ebcad351ee47d1984d28db31e4.tar.xz musl-d01fdc777dd3b5ebcad351ee47d1984d28db31e4.zip | |
spare archs without time32 legacy the cost of ioctl fallback conversions
adding this condition makes the entire convert_ioctl_struct function
and compat_map table statically unreachable, and thereby optimized out
by dead code elimination, on archs where they are not needed.
| -rw-r--r-- | src/misc/ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/misc/ioctl.c b/src/misc/ioctl.c index aa748fb8..89477511 100644 --- a/src/misc/ioctl.c +++ b/src/misc/ioctl.c @@ -120,7 +120,7 @@ int ioctl(int fd, int req, ...) arg = va_arg(ap, void *); va_end(ap); int r = __syscall(SYS_ioctl, fd, req, arg); - if (req && r==-ENOTTY) { + if (SIOCGSTAMP != SIOCGSTAMP_OLD && req && r==-ENOTTY) { for (int i=0; i<sizeof compat_map/sizeof *compat_map; i++) { if (compat_map[i].new_req != req) continue; union { |