/*
* Copyright (c) 1999-2007 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. */
#include "SYS.h"
#if defined(__i386__)
LEAF(___syscall, 0)
popl %ecx // ret addr
popl %eax // syscall number
pushl %ecx
UNIX_SYSCALL_TRAP
movl (%esp),%edx // add one element to stack so
pushl %ecx // caller "pop" will work
jnb 2f
BRANCH_EXTERN(tramp_cerror)
2:
END(___syscall)
#elif defined(__x86_64__)
// For x86-64, the kernel slides the argument list for us.
// The number of arguments here is variable, but our macros ignore
// that value anyway.
__SYSCALL(___syscall, syscall, 0);
#elif defined(__arm__)
__SYSCALL(___syscall, syscall, 7)
#elif defined(__arm64__)
/*
* Ignore nominal number of arguments: just pop from stack and let the kernel
* interpret.
*/
#include <mach/arm64/asm.h>
MI_ENTRY_POINT(___syscall)
ldp x1, x2, [sp]
ldp x3, x4, [sp, #16]
ldp x5, x6, [sp, #32]
ldr x7, [sp, #48]
DO_SYSCALL(SYS_syscall, cerror)
ret
#else
#error Unsupported architecture
#endif