SYS.h revision 209878
1/*- 2 * Copyright (c) 2002 Benno Rice. All rights reserved. 3 * Copyright (c) 2002 David E. O'Brien. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the author nor the names of any contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $NetBSD: SYS.h,v 1.8 2002/01/14 00:55:56 thorpej Exp $ 30 * $FreeBSD: head/lib/libc/powerpc64/SYS.h 209878 2010-07-10 14:45:03Z nwhitehorn $ 31 */ 32 33#include <sys/syscall.h> 34#include <machine/asm.h> 35 36#define _SYSCALL(x) \ 37 .text; \ 38 .align 2; \ 39 li 0,(__CONCAT(SYS_,x)); \ 40 sc 41 42#define SYSCALL(x) \ 43 .text; \ 44 .align 2; \ 452: mflr %r0; \ 46 std %r0,16(%r1); \ 47 stdu %r1,-48(%r1); \ 48 bl PIC_PLT(CNAME(HIDENAME(cerror))); \ 49 nop; \ 50 addi %r1,%r1,48; \ 51 ld %r0,16(%r1); \ 52 mtlr %r0; \ 53 blr; \ 54ENTRY(__CONCAT(__sys_,x)); \ 55 .weak CNAME(x); \ 56 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 57 .weak CNAME(__CONCAT(_,x)); \ 58 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 59 .weak CNAME(__CONCAT(.,x)); \ 60 .set CNAME(__CONCAT(.,x)),CNAME(__CONCAT(.__sys_,x));\ 61 .weak CNAME(__CONCAT(._,x)); \ 62 .set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\ 63 _SYSCALL(x); \ 64 bso 2b 65 66#define PSEUDO(x) \ 67 .text; \ 68 .align 2; \ 69ENTRY(__CONCAT(__sys_,x)); \ 70 .weak CNAME(__CONCAT(_,x)); \ 71 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 72 .weak CNAME(__CONCAT(._,x)); \ 73 .set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\ 74 _SYSCALL(x); \ 75 bnslr; \ 76 mflr %r0; \ 77 std %r0,16(%r1); \ 78 stdu %r1,-48(%r1); \ 79 bl PIC_PLT(CNAME(HIDENAME(cerror))); \ 80 nop; \ 81 addi %r1,%r1,48; \ 82 ld %r0,16(%r1); \ 83 mtlr %r0; \ 84 blr; 85 86#define RSYSCALL(x) \ 87 .text; \ 88 .align 2; \ 89ENTRY(__CONCAT(__sys_,x)); \ 90 .weak CNAME(x); \ 91 .set CNAME(x),CNAME(__CONCAT(__sys_,x)); \ 92 .weak CNAME(__CONCAT(_,x)); \ 93 .set CNAME(__CONCAT(_,x)),CNAME(__CONCAT(__sys_,x)); \ 94 .weak CNAME(__CONCAT(.,x)); \ 95 .set CNAME(__CONCAT(.,x)),CNAME(__CONCAT(.__sys_,x));\ 96 .weak CNAME(__CONCAT(._,x)); \ 97 .set CNAME(__CONCAT(._,x)),CNAME(__CONCAT(.__sys_,x));\ 98 _SYSCALL(x); \ 99 bnslr; \ 100 \ 101 mflr %r0; \ 102 std %r0,16(%r1); \ 103 stdu %r1,-48(%r1); \ 104 bl PIC_PLT(CNAME(HIDENAME(cerror))); \ 105 nop; \ 106 addi %r1,%r1,48; \ 107 ld %r0,16(%r1); \ 108 mtlr %r0; \ 109 blr; 110