Merge commit 'origin/master' into nptl

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

5 files changed, 31 insertions, 13 deletions

diff --git a/libc/sysdeps/linux/common/bits/syscalls-common.h b/libc/sysdeps/linux/common/bits/syscalls-common.h
index 78bbf6c22..5e4e350c5 100644
--- a/libc/sysdeps/linux/common/bits/syscalls-common.h
+++ b/libc/sysdeps/linux/common/bits/syscalls-common.h
@@ -33,6 +33,9 @@
 #ifndef INLINE_SYSCALL
 # define INLINE_SYSCALL(name, nr, args...) INLINE_SYSCALL_NCS(__NR_##name, nr, args)
 #endif
+#ifndef INLINE_SYSCALL_NOERR
+# define INLINE_SYSCALL_NOERR(name, nr, args...) INLINE_SYSCALL_NOERR_NCS(__NR_##name, nr, args)
+#endif
 
 /* Just like INLINE_SYSCALL(), but take a non-constant syscall (NCS) argument */
 #ifndef INLINE_SYSCALL_NCS
@@ -47,6 +50,14 @@
 	__res;								\
 })
 #endif
+#ifndef INLINE_SYSCALL_NOERR_NCS
+# define INLINE_SYSCALL_NOERR_NCS(name, nr, args...)			\
+({									\
+	INTERNAL_SYSCALL_DECL(__err);					\
+	long __res = INTERNAL_SYSCALL_NCS(name, __err, nr, args);	\
+	__res;								\
+})
+#endif
 
 /* No point in forcing people to implement both when they only need one */
 #ifndef INTERNAL_SYSCALL
@@ -80,8 +91,14 @@ type name(C_DECL_ARGS_##nargs(args)) {					\
 	return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args));	\
 }
 
+#define SYSCALL_NOERR_FUNC(nargs, type, name, args...)			\
+type name(C_DECL_ARGS_##nargs(args)) {					\
+	return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args));	\
+}
+
 #define _syscall0(args...)		SYSCALL_FUNC(0, args)
 #define _syscall1(args...)		SYSCALL_FUNC(1, args)
+#define _syscall_noerr1(args...)	SYSCALL_NOERR_FUNC(1, args)
 #define _syscall2(args...)		SYSCALL_FUNC(2, args)
 #define _syscall3(args...)		SYSCALL_FUNC(3, args)
 #define _syscall4(args...)		SYSCALL_FUNC(4, args)
diff --git a/libc/sysdeps/linux/common/clock_gettime.c b/libc/sysdeps/linux/common/clock_gettime.c
index 888cd64b0..d3755a7a8 100644
--- a/libc/sysdeps/linux/common/clock_gettime.c
+++ b/libc/sysdeps/linux/common/clock_gettime.c
@@ -23,10 +23,12 @@ int clock_gettime(clockid_t clock_id, struct timespec* tp)
 
 	switch (clock_id) {
 		case CLOCK_REALTIME:
-			retval = gettimeofday(&tv, NULL);
-			if (retval == 0) {
-				TIMEVAL_TO_TIMESPEC(&tv, tp);
-			}
+			/* In Linux, gettimeofday fails only on bad parameter.
+			 * We know that here parameter isn't bad.
+			 */
+			gettimeofday(&tv, NULL);
+			TIMEVAL_TO_TIMESPEC(&tv, tp);
+			retval = 0;
 			break;
 
 		default:
diff --git a/libc/sysdeps/linux/common/prctl.c b/libc/sysdeps/linux/common/prctl.c
index a6764c532..39c0d4fb0 100644
--- a/libc/sysdeps/linux/common/prctl.c
+++ b/libc/sysdeps/linux/common/prctl.c
@@ -13,5 +13,5 @@
 
 #ifdef __NR_prctl
 extern int prctl (int, long, long, long, long);
-_syscall5(int, prctl, int, option, long, arg2, long, arg3, long, arg4, long, arg5)
+_syscall5(int, prctl, int, option, long, _a2, long, _a3, long, _a4, long, _a5)
 #endif
diff --git a/libc/sysdeps/linux/common/time.c b/libc/sysdeps/linux/common/time.c
index 0d9e412bf..e13b44f4d 100644
--- a/libc/sysdeps/linux/common/time.c
+++ b/libc/sysdeps/linux/common/time.c
@@ -13,19 +13,18 @@
 
 
 #ifdef __NR_time
-_syscall1(time_t, time, time_t *, t)
+_syscall_noerr1(time_t, time, time_t *, t)
 #else
-
 time_t time(time_t * t)
 {
 	time_t result;
 	struct timeval tv;
 
-	if (gettimeofday(&tv, (struct timezone *) NULL)) {
-		result = (time_t) - 1;
-	} else {
-		result = (time_t) tv.tv_sec;
-	}
+	/* In Linux, gettimeofday fails only on bad parameter.
+	 * We know that here parameter isn't bad.
+	 */
+	gettimeofday(&tv, NULL);
+	result = (time_t) tv.tv_sec;
 	if (t != NULL) {
 		*t = result;
 	}
diff --git a/libc/sysdeps/linux/common/times.c b/libc/sysdeps/linux/common/times.c
index e71d1bd71..37ae040d4 100644
--- a/libc/sysdeps/linux/common/times.c
+++ b/libc/sysdeps/linux/common/times.c
@@ -11,5 +11,5 @@
 #include <sys/times.h>
 
 
-_syscall1(clock_t, times, struct tms *, buf)
+_syscall_noerr1(clock_t, times, struct tms *, buf)
 libc_hidden_def(times)