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authorPeter S. Mazinger <ps.m@gmx.net>2011-04-16 12:42:50 +0200
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2012-06-15 14:00:39 +0200
commit29f2e0cd6d48770e516f0e7fed333643360defd9 (patch)
tree4f4cff8f14ad5422e987447ae619ca342cf15e15 /libc
parentc292baef29b746ba55418757c5efd0d8b78be59a (diff)
sigsuspend.c: make build fail, if rt_sigsuspend is not available and NPTL is defined
Rework a bit for less code. always_inline syscall used only once, do not inline syscall used twice. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc')
-rw-r--r--libc/sysdeps/linux/common/sigsuspend.c43
1 files changed, 18 insertions, 25 deletions
diff --git a/libc/sysdeps/linux/common/sigsuspend.c b/libc/sysdeps/linux/common/sigsuspend.c
index ded2aad5b..c26ad16ee 100644
--- a/libc/sysdeps/linux/common/sigsuspend.c
+++ b/libc/sysdeps/linux/common/sigsuspend.c
@@ -9,48 +9,41 @@
#include <sys/syscall.h>
-#if defined __USE_POSIX
+#ifdef __USE_POSIX
#include <signal.h>
-#undef sigsuspend
-libc_hidden_proto(sigsuspend)
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+# ifndef __NR_rt_sigsuspend
+# error break build, NPTL needs rt_sigsuspend syscall
+# endif
+# include <sysdep-cancel.h>
+#else
+# define SINGLE_THREAD_P 1
+#endif
#ifdef __NR_rt_sigsuspend
-# define __NR___rt_sigsuspend __NR_rt_sigsuspend
-
-# ifdef __UCLIBC_HAS_THREADS_NATIVE__
-# include <errno.h>
-# include <sysdep-cancel.h>
+static _syscall2(int, rt_sigsuspend, const sigset_t *, set, size_t, size)
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
-int sigsuspend (const sigset_t *set)
+int sigsuspend(const sigset_t *set)
{
if (SINGLE_THREAD_P)
- return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
+ return rt_sigsuspend(set, _NSIG / 8);
+# ifdef __UCLIBC_HAS_THREADS_NATIVE__
int oldtype = LIBC_CANCEL_ASYNC ();
-
- int result = INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
-
+ int result = rt_sigsuspend(set, _NSIG / 8);
LIBC_CANCEL_RESET (oldtype);
-
return result;
-}
-# else
-static inline _syscall2(int, __rt_sigsuspend, const sigset_t *, mask, size_t, size)
-
-int sigsuspend(const sigset_t * mask)
-{
- return __rt_sigsuspend(mask, _NSIG / 8);
-}
# endif
+}
#else
# define __NR___syscall_sigsuspend __NR_sigsuspend
-static __inline__ _syscall3(int, __syscall_sigsuspend, int, a, unsigned long int, b,
- unsigned long int, c)
+static __always_inline _syscall3(int, __syscall_sigsuspend, int, a, unsigned long int, b,
+ unsigned long int, c)
-int sigsuspend(const sigset_t * set)
+int sigsuspend(const sigset_t *set)
{
return __syscall_sigsuspend(0, 0, set->__val[0]);
}