78599c32ef
Follow-up to r353959 and r368070: do the same for other architectures. arm32 already seems to use its own .fnstart/.fnend directives, which appear to be ARM-specific variants of the same thing. Likewise, MIPS uses .frame directives. Reviewed by: arichardson Differential Revision: https://reviews.freebsd.org/D27387
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2002 Benno Rice. All rights reserved.
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* Copyright (c) 2002 David E. O'Brien. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $NetBSD: SYS.h,v 1.8 2002/01/14 00:55:56 thorpej Exp $
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* $FreeBSD$
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*/
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#include <sys/syscall.h>
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#include <machine/asm.h>
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#define _SYSCALL(name) \
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.text; \
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.align 2; \
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li 0,(SYS_##name); \
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sc
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#define SYSCALL(name) \
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.text; \
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.align 2; \
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2: mflr %r0; \
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std %r0,16(%r1); \
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stdu %r1,-48(%r1); \
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bl CNAME(HIDENAME(cerror)); \
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nop; \
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addi %r1,%r1,48; \
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ld %r0,16(%r1); \
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mtlr %r0; \
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blr; \
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ENTRY(__sys_##name); \
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WEAK_REFERENCE(__sys_##name, name); \
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WEAK_REFERENCE(__sys_##name, _##name); \
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_SYSCALL(name); \
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bso 2b
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#define PSEUDO(name) \
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.text; \
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.align 2; \
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ENTRY(__sys_##name); \
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WEAK_REFERENCE(__sys_##name, _##name); \
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_SYSCALL(name); \
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bnslr; \
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mflr %r0; \
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std %r0,16(%r1); \
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stdu %r1,-48(%r1); \
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bl CNAME(HIDENAME(cerror)); \
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nop; \
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addi %r1,%r1,48; \
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ld %r0,16(%r1); \
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mtlr %r0; \
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blr; \
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END(__sys_##name)
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#define RSYSCALL(name) \
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.text; \
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.align 2; \
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ENTRY(__sys_##name); \
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WEAK_REFERENCE(__sys_##name, name); \
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WEAK_REFERENCE(__sys_##name, _##name); \
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_SYSCALL(name); \
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bnslr; \
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\
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mflr %r0; \
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std %r0,16(%r1); \
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stdu %r1,-48(%r1); \
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bl CNAME(HIDENAME(cerror)); \
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nop; \
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addi %r1,%r1,48; \
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ld %r0,16(%r1); \
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mtlr %r0; \
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blr; \
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END(__sys_##name)
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