asm.h revision 1.4
1/* $NetBSD: asm.h,v 1.4 2025/01/06 10:46:43 martin Exp $ */ 2 3/*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef _OR1K_ASM_H_ 33#define _OR1K_ASM_H_ 34 35#define __BIT(n) (1 << (n)) 36#define __BITS(hi,lo) ((~((~0)<<((hi)+1)))&((~0)<<(lo))) 37 38#define _C_LABEL(x) x 39#define _ASM_LABEL(x) x 40 41#define __CONCAT(x,y) x ## y 42#define __STRING(x) #x 43 44#ifndef _ALIGN_TEXT 45# define _ALIGN_TEXT .align 4 46#endif 47 48#ifndef _TEXT_SECTION 49#define _TEXT_SECTION .text 50#endif 51#define _ASM_TYPE_FUNCTION @function 52#define _ASM_TYPE_OBJECT @object 53#define _ENTRY(x) \ 54 _TEXT_SECTION; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: 55#define _END(x) .size x,.-x 56 57#ifdef GPROF 58# define _PROF_PROLOGUE \ 59 mov x9, x30; l.jal __mcount 60#else 61# define _PROF_PROLOGUE 62#endif 63 64#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE 65#define ENTRY_NP(y) _ENTRY(_C_LABEL(y)) 66#define END(y) _END(_C_LABEL(y)) 67#define END(y) _END(_C_LABEL(y)) 68#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE 69#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y)) 70#define ASEND(y) _END(_ASM_LABEL(y)) 71 72#define ASMSTR .asciz 73 74#ifdef __PIC__ 75#define PLT(x) plt(x) 76#define PIC_GOTSETUP(r) \ 77 l.jal 999f ;\ 78 l.nop ;\ 79999: l.movhi r,gotpchi(_GLOBAL_OFFSET_TABLE_+0) ;\ 80 l.ori r,r,gotpclo(_GLOBAL_OFFSET_TABLE_+4) ;\ 81 l.add r,r,r9 82#else 83#define PLT(x) x 84#endif 85 86#ifdef _NETBSD_REVISIONID 87#define __RCSID(x) .pushsection ".ident","MS",@progbits,1; \ 88 .asciz x; \ 89 .ascii "$"; .ascii "NetBSD: "; .ascii __FILE__; \ 90 .ascii " "; .ascii _NETBSD_REVISIONID; \ 91 .asciz " $"; \ 92 .popsection 93#else 94#define __RCSID(x) .pushsection ".ident","MS",@progbits,1; \ 95 .asciz x; \ 96 .popsection 97#endif 98#define RCSID(x) __RCSID(x) 99 100#define WEAK_ALIAS(alias,sym) \ 101 .weak alias; \ 102 alias = sym 103 104/* 105 * STRONG_ALIAS: create a strong alias. 106 */ 107#define STRONG_ALIAS(alias,sym) \ 108 .globl alias; \ 109 alias = sym 110 111#define WARN_REFERENCES(sym,msg) \ 112 .pushsection .gnu.warning. ## sym; \ 113 .ascii msg; \ 114 .popsection 115 116#endif /* !_OR1K_ASM_H_ */ 117