syscall overhaul part two - unify public and internal syscall interface

with this patch, the syscallN() functions are no longer needed; a
variadic syscall() macro allows syscalls with anywhere from 0 to 6
arguments to be made with a single macro name. also, manually casting
each non-integer argument with (long) is no longer necessary; the
casts are hidden in the macros.

some source files which depended on being able to define the old macro
SYSCALL_RETURNS_ERRNO have been modified to directly use __syscall()
instead of syscall(). references to SYSCALL_SIGSET_SIZE and SYSCALL_LL
have also been changed.

x86_64 has not been tested, and may need a follow-up commit to fix any
minor bugs/oversights.

1 files changed, 1 insertions, 2 deletions

diff --git a/src/thread/__timedwait.c b/src/thread/__timedwait.c
index 988eb70d..b38ea990 100644
--- a/src/thread/__timedwait.c
+++ b/src/thread/__timedwait.c
@@ -1,7 +1,6 @@
 #include <time.h>
 #include <errno.h>
 #include "futex.h"
-#define SYSCALL_RETURN_ERRNO
 #include "syscall.h"
 #include <stdio.h>
 int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespec *at, int priv)
@@ -18,7 +17,7 @@ int __timedwait(volatile int *addr, int val, clockid_t clk, const struct timespe
 		if (to.tv_sec < 0) return ETIMEDOUT;
 	}
 	if (priv) priv = 128; priv=0;
-	r = syscall4(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
+	r = __syscall(__NR_futex, (long)addr, FUTEX_WAIT | priv, val, at ? (long)&to : 0);
 	if (r == ETIMEDOUT) return r;
 	return 0;
 }