1 /* $NetBSD: asm.h,v 1.2 2020/04/17 14:19:44 joerg 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 ;\ 79 999: 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 #define __RCSID(x) .pushsection ".ident","MS",@progbits,1; \ 87 .asciz x; \ 88 .popsection 89 #define RCSID(x) __RCSID(x) 90 91 #define WEAK_ALIAS(alias,sym) \ 92 .weak alias; \ 93 alias = sym 94 95 /* 96 * STRONG_ALIAS: create a strong alias. 97 */ 98 #define STRONG_ALIAS(alias,sym) \ 99 .globl alias; \ 100 alias = sym 101 102 #define WARN_REFERENCES(sym,msg) \ 103 .pushsection .gnu.warning. ## sym; \ 104 .ascii msg; \ 105 .popsection 106 107 #endif /* !_OR1K_ASM_H_ */ 108