diff options
Diffstat (limited to 'mdk-stage1/dietlibc/lib/sigaddset.c')
-rw-r--r-- | mdk-stage1/dietlibc/lib/sigaddset.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/mdk-stage1/dietlibc/lib/sigaddset.c b/mdk-stage1/dietlibc/lib/sigaddset.c index 8ce69ea77..1c2632e67 100644 --- a/mdk-stage1/dietlibc/lib/sigaddset.c +++ b/mdk-stage1/dietlibc/lib/sigaddset.c @@ -1,15 +1,17 @@ -#define __KERNEL__ -#define sigaddset foobar -#include <asm/signal.h> -#undef sigaddset +#include <signal.h> +#include <errno.h> -int __sigaddset(sigset_t *set, int signo) { - unsigned long sig = signo - 1; - if (_NSIG_WORDS == 1) - set->sig[0] |= 1UL << sig; - else - set->sig[sig / _NSIG_BPW] |= 1UL << (sig % _NSIG_BPW); - return 0; -} +#define __sigmask(sig) ( ((unsigned long)1) << (((sig)-1) % (8*sizeof(unsigned long))) ) +#define __sigword(sig) ( ((sig)-1) / (8*sizeof(unsigned long)) ) -int sigaddset (sigset_t *env, int signo) __attribute__((weak,alias("__sigaddset"))); +int sigaddset(sigset_t *set, int signo) { + if ((signo<1)||(signo>SIGRTMAX)) { + (*__errno_location())=EINVAL; + return -1; + } else { + unsigned long __mask = __sigmask (signo); + unsigned long __word = __sigword (signo); + set->sig[__word]|=__mask; + return 0; + } +} |