Differential D14609 Diff 48384 lib/libsys/powerpc64/SYS.h

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lib/libsys/powerpc64/SYS.h

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				/*-
				* SPDX-License-Identifier: BSD-3-Clause
				*
				* Copyright (c) 2002 Benno Rice. All rights reserved.
				* Copyright (c) 2002 David E. O'Brien. All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				* 3. Neither the name of the author nor the names of any contributors
				* may be used to endorse or promote products derived from this software
				* without specific prior written permission.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*
				* $NetBSD: SYS.h,v 1.8 2002/01/14 00:55:56 thorpej Exp $
				* $FreeBSD$
				*/

				#include <sys/syscall.h>
				#include <machine/asm.h>

				#define _SYSCALL(name) \
				.text; \
				.align 2; \
				li 0,(SYS_##name); \
				sc

				#define SYSCALL(name) \
				.text; \
				.align 2; \
				2: mflr %r0; \
				std %r0,16(%r1); \
				stdu %r1,-48(%r1); \
				bl CNAME(HIDENAME(cerror)); \
				nop; \
				addi %r1,%r1,48; \
				ld %r0,16(%r1); \
				mtlr %r0; \
				blr; \
				ENTRY(__sys_##name); \
				WEAK_REFERENCE(__sys_##name, name); \
				WEAK_REFERENCE(__sys_##name, _##name); \
				_SYSCALL(name); \
				bso 2b

				#define PSEUDO(name) \
				.text; \
				.align 2; \
				ENTRY(__sys_##name); \
				WEAK_REFERENCE(__sys_##name, _##name); \
				_SYSCALL(name); \
				bnslr; \
				mflr %r0; \
				std %r0,16(%r1); \
				stdu %r1,-48(%r1); \
				bl CNAME(HIDENAME(cerror)); \
				nop; \
				addi %r1,%r1,48; \
				ld %r0,16(%r1); \
				mtlr %r0; \
				blr;

				#define RSYSCALL(name) \
				.text; \
				.align 2; \
				ENTRY(__sys_##name); \
				WEAK_REFERENCE(__sys_##name, name); \
				WEAK_REFERENCE(__sys_##name, _##name); \
				_SYSCALL(name); \
				bnslr; \
				\
				mflr %r0; \
				std %r0,16(%r1); \
				stdu %r1,-48(%r1); \
				bl CNAME(HIDENAME(cerror)); \
				nop; \
				addi %r1,%r1,48; \
				ld %r0,16(%r1); \
				mtlr %r0; \
				blr;