+++ /dev/null
-From f764bcffed69d8c62625dc4b6c1a6af21bd6dbc2 Mon Sep 17 00:00:00 2001
-From: Joel Stanley <joel@jms.id.au>
-Date: Wed, 6 Dec 2017 12:26:21 +1030
-Subject: [PATCH] or1k: syscall: Pass arguments on the stack
-
-Busybox internally calls syscall(2).
-
- - in unistd.h defined something like
- int syscall(nr, ....)
-
- - in syscall.c (common) implemented as
- int syscall(nr, arg1, arg3, arg3, arg4, arg5, arg6)
-
-This will not work, busybox thinks syscall should have varargs calling
-conventions. But it doesnt in the uclibc implementation so no args go through.
-
-Most architectures this will work. But on openrisc varargs are all sent on the
-stack. Regular args are passed in registers.
-
-Commit message and idea from Stafford Horne <shorne@gmail.com>.
-
-Signed-off-by: Joel Stanley <joel@jms.id.au>
----
- libc/sysdeps/linux/or1k/Makefile.arch | 2 +-
- libc/sysdeps/linux/or1k/syscall.c | 32 ++++++++++++++++++++++++++++++++
- 2 files changed, 33 insertions(+), 1 deletion(-)
- create mode 100644 libc/sysdeps/linux/or1k/syscall.c
-
-diff --git a/libc/sysdeps/linux/or1k/Makefile.arch b/libc/sysdeps/linux/or1k/Makefile.arch
-index f6758fa63fa3..191eebafde9d 100644
---- a/libc/sysdeps/linux/or1k/Makefile.arch
-+++ b/libc/sysdeps/linux/or1k/Makefile.arch
-@@ -5,5 +5,5 @@
- # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- #
-
--CSRC-y := __syscall_error.c __init_brk.c brk.c sbrk.c clone.c
-+CSRC-y := __syscall_error.c __init_brk.c brk.c sbrk.c clone.c syscall.c
- SSRC-y := __longjmp.S setjmp.S or1k_clone.S
-diff --git a/libc/sysdeps/linux/or1k/syscall.c b/libc/sysdeps/linux/or1k/syscall.c
-new file mode 100644
-index 000000000000..2f4356737cf8
---- /dev/null
-+++ b/libc/sysdeps/linux/or1k/syscall.c
-@@ -0,0 +1,32 @@
-+/*
-+ * Copyright (C) 2017 Joel Stanley <joel@jms.id.au>
-+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-+ */
-+
-+#include <stdarg.h>
-+#include <sys/syscall.h>
-+#include <unistd.h>
-+
-+long int syscall (long num, ...)
-+{
-+ unsigned long arg1 = 0;
-+ unsigned long arg2 = 0;
-+ unsigned long arg3 = 0;
-+ unsigned long arg4 = 0;
-+ unsigned long arg5 = 0;
-+ unsigned long arg6 = 0;
-+ va_list arg;
-+
-+ va_start (arg, num);
-+ arg1 = va_arg (arg, unsigned long);
-+ arg2 = va_arg (arg, unsigned long);
-+ arg3 = va_arg (arg, unsigned long);
-+ arg4 = va_arg (arg, unsigned long);
-+ arg5 = va_arg (arg, unsigned long);
-+ arg6 = va_arg (arg, unsigned long);
-+ va_end (arg);
-+
-+ __asm__ volatile ( "" ::: "memory" );
-+
-+ return INLINE_SYSCALL_NCS(num, 6, arg1, arg2, arg3, arg4, arg5, arg6);
-+}
---
-2.14.1
-