path: root/src/thread/pthread_sigmask.c
diff options
authorRich Felker <>2013-03-26 23:07:31 -0400
committerRich Felker <>2013-03-26 23:07:31 -0400
commitccc7b4c3a17ade90de71e1e0f44deebbffd646e6 (patch)
treef2ebd7203d59fdcd3301136924e628b94917e2e5 /src/thread/pthread_sigmask.c
parent00f1521fdd3f57c7a190550426537089fc24b9da (diff)
remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG
the issue at hand is that many syscalls require as an argument the kernel-ABI size of sigset_t, intended to allow the kernel to switch to a larger sigset_t in the future. previously, each arch was defining this size in syscall_arch.h, which was redundant with the definition of _NSIG in bits/signal.h. as it's used in some not-quite-portable application code as well, _NSIG is much more likely to be recognized and understood immediately by someone reading the code, and it's also shorter and less cluttered. note that _NSIG is actually 65/129, not 64/128, but the division takes care of throwing away the off-by-one part.
Diffstat (limited to 'src/thread/pthread_sigmask.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/src/thread/pthread_sigmask.c b/src/thread/pthread_sigmask.c
index f6102ad4..b274bd0d 100644
--- a/src/thread/pthread_sigmask.c
+++ b/src/thread/pthread_sigmask.c
@@ -7,7 +7,7 @@ int pthread_sigmask(int how, const sigset_t *restrict set, sigset_t *restrict ol
int ret;
if ((unsigned)how - SIG_BLOCK > 2U) return EINVAL;
- ret = -__syscall(SYS_rt_sigprocmask, how, set, old, __SYSCALL_SSLEN);
+ ret = -__syscall(SYS_rt_sigprocmask, how, set, old, _NSIG/8);
if (!ret && old) {
if (sizeof old->__bits[0] == 8) {
old->__bits[0] &= ~0x380000000ULL;