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| author | Rich Felker <dalias@aerifal.cx> | 2011-03-16 11:36:21 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-03-16 11:36:21 -0400 |
| commit | 29fae65780f4c5ccda3758828da7a83073297ccc (patch) | |
| tree | 518fa66e4cf65b8aaff11c617fe5bb60c9f9f64f /src/thread | |
| parent | cc832d8a31e674c3d8ee7168e4a613b5bf8124e0 (diff) | |
| download | musl-29fae65780f4c5ccda3758828da7a83073297ccc.tar.gz musl-29fae65780f4c5ccda3758828da7a83073297ccc.tar.xz musl-29fae65780f4c5ccda3758828da7a83073297ccc.zip | |
cut out a syscall on thread creation in the case where guard size is 0
Diffstat (limited to 'src/thread')
| -rw-r--r-- | src/thread/pthread_create.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c index 9b6385f5..7494a486 100644 --- a/src/thread/pthread_create.c +++ b/src/thread/pthread_create.c @@ -195,7 +195,7 @@ int pthread_create(pthread_t *res, const pthread_attr_t *attr, void *(*entry)(vo size += __pthread_tsd_size; map = mmap(0, size, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANON, -1, 0); if (!map) return EAGAIN; - mprotect(map, guard, PROT_NONE); + if (guard) mprotect(map, guard, PROT_NONE); tsd = map + size - __pthread_tsd_size; new = (void *)(tsd - sizeof *new - PAGE_SIZE%sizeof *new); |