support kernels with no SYS_open syscall, only SYS_openat

open is handled specially because it is used from so many places, in
so many variants (2 or 3 arguments, setting errno or not, and
cancellable or not). trying to do it as a function would not only
increase bloat, but would also risk subtle breakage.

this is the first step towards supporting "new" archs where linux
lacks "old" syscalls.

3 files changed, 3 insertions, 3 deletions

diff --git a/src/stdio/__fopen_rb_ca.c b/src/stdio/__fopen_rb_ca.c
index 9202c8ce..b72c6304 100644
--- a/src/stdio/__fopen_rb_ca.c
+++ b/src/stdio/__fopen_rb_ca.c
@@ -6,7 +6,7 @@ FILE *__fopen_rb_ca(const char *filename, FILE *f, unsigned char *buf, size_t le
 {
 	memset(f, 0, sizeof *f);
 
-	f->fd = syscall(SYS_open, filename, O_RDONLY|O_LARGEFILE|O_CLOEXEC, 0);
+	f->fd = sys_open(filename, O_RDONLY|O_CLOEXEC);
 	if (f->fd < 0) return 0;
 
 	f->flags = F_NOWR | F_PERM;
diff --git a/src/stdio/fopen.c b/src/stdio/fopen.c
index da17ce8b..3d97cfa8 100644
--- a/src/stdio/fopen.c
+++ b/src/stdio/fopen.c
@@ -18,7 +18,7 @@ FILE *fopen(const char *restrict filename, const char *restrict mode)
 	/* Compute the flags to pass to open() */
 	flags = __fmodeflags(mode);
 
-	fd = syscall_cp(SYS_open, filename, flags|O_LARGEFILE, 0666);
+	fd = sys_open_cp(filename, flags, 0666);
 	if (fd < 0) return 0;
 
 	f = __fdopen(fd, mode);
diff --git a/src/stdio/tmpfile.c b/src/stdio/tmpfile.c
index 926d6601..b0d0ba07 100644
--- a/src/stdio/tmpfile.c
+++ b/src/stdio/tmpfile.c
@@ -14,7 +14,7 @@ FILE *tmpfile(void)
 	for (try=0; try<MAXTRIES; try++) {
 		s = tmpnam(buf);
 		if (!s) return 0;
-		fd = syscall(SYS_open, s, O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600);
+		fd = sys_open(s, O_RDWR|O_CREAT|O_EXCL, 0600);
 		if (fd >= 0) {
 			f = __fdopen(fd, "w+");
 			__syscall(SYS_unlink, s);