11.24Sriastrad/* $NetBSD: asm.h,v 1.24 2025/01/05 14:30:37 riastradh Exp $ */ 21.1Sfvdl 31.1Sfvdl/*- 41.1Sfvdl * Copyright (c) 1990 The Regents of the University of California. 51.1Sfvdl * All rights reserved. 61.1Sfvdl * 71.1Sfvdl * This code is derived from software contributed to Berkeley by 81.1Sfvdl * William Jolitz. 91.1Sfvdl * 101.1Sfvdl * Redistribution and use in source and binary forms, with or without 111.1Sfvdl * modification, are permitted provided that the following conditions 121.1Sfvdl * are met: 131.1Sfvdl * 1. Redistributions of source code must retain the above copyright 141.1Sfvdl * notice, this list of conditions and the following disclaimer. 151.1Sfvdl * 2. Redistributions in binary form must reproduce the above copyright 161.1Sfvdl * notice, this list of conditions and the following disclaimer in the 171.1Sfvdl * documentation and/or other materials provided with the distribution. 181.3Sagc * 3. Neither the name of the University nor the names of its contributors 191.1Sfvdl * may be used to endorse or promote products derived from this software 201.1Sfvdl * without specific prior written permission. 211.1Sfvdl * 221.1Sfvdl * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 231.1Sfvdl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 241.1Sfvdl * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 251.1Sfvdl * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 261.1Sfvdl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271.1Sfvdl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 281.1Sfvdl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 291.1Sfvdl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 301.1Sfvdl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 311.1Sfvdl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 321.1Sfvdl * SUCH DAMAGE. 331.1Sfvdl * 341.1Sfvdl * @(#)asm.h 5.5 (Berkeley) 5/7/91 351.1Sfvdl */ 361.1Sfvdl 371.1Sfvdl#ifndef _AMD64_ASM_H_ 381.1Sfvdl#define _AMD64_ASM_H_ 391.1Sfvdl 401.13Smrg#ifdef __x86_64__ 411.13Smrg 421.18Sjoerg#ifdef __PIC__ 431.1Sfvdl#define PIC_PLT(x) x@PLT 441.1Sfvdl#define PIC_GOT(x) x@GOTPCREL(%rip) 451.1Sfvdl#else 461.1Sfvdl#define PIC_PLT(x) x 471.1Sfvdl#define PIC_GOT(x) x 481.1Sfvdl#endif 491.1Sfvdl 501.19Suebayasi#define _C_LABEL(x) x 511.1Sfvdl#define _ASM_LABEL(x) x 521.1Sfvdl 531.1Sfvdl#define CVAROFF(x,y) (_C_LABEL(x)+y)(%rip) 541.1Sfvdl 551.1Sfvdl#ifdef __STDC__ 561.1Sfvdl# define __CONCAT(x,y) x ## y 571.1Sfvdl# define __STRING(x) #x 581.1Sfvdl#else 591.1Sfvdl# define __CONCAT(x,y) x/**/y 601.1Sfvdl# define __STRING(x) "x" 611.1Sfvdl#endif 621.1Sfvdl 631.1Sfvdl/* let kernels and others override entrypoint alignment */ 641.1Sfvdl#ifndef _ALIGN_TEXT 651.8Sad# ifdef _STANDALONE 661.11Sad# define _ALIGN_TEXT .align 4 671.8Sad# else 681.10Sad# define _ALIGN_TEXT .align 16 691.8Sad# endif 701.1Sfvdl#endif 711.1Sfvdl 721.1Sfvdl#define _ENTRY(x) \ 731.1Sfvdl .text; _ALIGN_TEXT; .globl x; .type x,@function; x: 741.7Sad#define _LABEL(x) \ 751.7Sad .globl x; x: 761.1Sfvdl 771.1Sfvdl#ifdef _KERNEL 781.1Sfvdl/* XXX Can't use __CONCAT() here, as it would be evaluated incorrectly. */ 791.1Sfvdl#ifdef __STDC__ 801.2Syamt#define IDTVEC(name) \ 811.2Syamt ALIGN_TEXT; .globl X ## name; .type X ## name,@function; X ## name: 821.17Suebayasi#define IDTVEC_END(name) \ 831.17Suebayasi .size X ## name, . - X ## name 841.22Srillig#else 851.2Syamt#define IDTVEC(name) \ 861.2Syamt ALIGN_TEXT; .globl X/**/name; .type X/**/name,@function; X/**/name: 871.17Suebayasi#define IDTVEC_END(name) \ 881.17Suebayasi .size X/**/name, . - X/**/name 891.22Srillig#endif /* __STDC__ */ 901.1Sfvdl#endif /* _KERNEL */ 911.1Sfvdl 921.1Sfvdl#ifdef __STDC__ 931.1Sfvdl#define CPUVAR(off) %gs:CPU_INFO_ ## off 941.1Sfvdl#else 951.1Sfvdl#define CPUVAR(off) %gs:CPU_INFO_/**/off 961.1Sfvdl#endif 971.1Sfvdl 981.1Sfvdl 991.1Sfvdl#ifdef GPROF 1001.1Sfvdl# define _PROF_PROLOGUE \ 1011.1Sfvdl pushq %rbp; leaq (%rsp),%rbp; call PIC_PLT(__mcount); popq %rbp 1021.1Sfvdl#else 1031.1Sfvdl# define _PROF_PROLOGUE 1041.1Sfvdl#endif 1051.1Sfvdl 1061.1Sfvdl#define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE 1071.1Sfvdl#define NENTRY(y) _ENTRY(_C_LABEL(y)) 1081.15Schs#define ALTENTRY(x) NENTRY(x) 1091.1Sfvdl#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE 1101.7Sad#define LABEL(y) _LABEL(_C_LABEL(y)) 1111.16Suebayasi#define END(y) .size y, . - y 1121.1Sfvdl 1131.1Sfvdl#define ASMSTR .asciz 1141.1Sfvdl 1151.23Sriastrad#define _IDENTSTR(x) .pushsection ".ident","MS",@progbits,1; \ 1161.24Sriastrad x; \ 1171.20Sjoerg .popsection 1181.23Sriastrad#ifdef _NETBSD_REVISIONID 1191.23Sriastrad#define RCSID(_s) \ 1201.24Sriastrad _IDENTSTR(.asciz _s); \ 1211.24Sriastrad _IDENTSTR(.ascii "$"; .ascii "NetBSD: "; .ascii __FILE__; .ascii " "; \ 1221.24Sriastrad .ascii _NETBSD_REVISIONID; .asciz " $") 1231.23Sriastrad#else 1241.24Sriastrad#define RCSID(_s) _IDENTSTR(.asciz _s) 1251.23Sriastrad#endif 1261.1Sfvdl 1271.1Sfvdl#define WEAK_ALIAS(alias,sym) \ 1281.1Sfvdl .weak alias; \ 1291.1Sfvdl alias = sym 1301.1Sfvdl 1311.5Schristos/* 1321.5Schristos * STRONG_ALIAS: create a strong alias. 1331.5Schristos */ 1341.5Schristos#define STRONG_ALIAS(alias,sym) \ 1351.5Schristos .globl alias; \ 1361.5Schristos alias = sym 1371.5Schristos 1381.1Sfvdl#ifdef __STDC__ 1391.1Sfvdl#define WARN_REFERENCES(sym,msg) \ 1401.14Sjoerg .pushsection .gnu.warning. ## sym; \ 1411.14Sjoerg .ascii msg; \ 1421.14Sjoerg .popsection 1431.1Sfvdl#else 1441.1Sfvdl#define WARN_REFERENCES(sym,msg) \ 1451.14Sjoerg .pushsection .gnu.warning./**/sym; \ 1461.14Sjoerg .ascii msg; \ 1471.14Sjoerg .popsection 1481.1Sfvdl#endif /* __STDC__ */ 1491.1Sfvdl 1501.13Smrg#else /* __x86_64__ */ 1511.13Smrg 1521.13Smrg#include <i386/asm.h> 1531.13Smrg 1541.13Smrg#endif /* __x86_64__ */ 1551.13Smrg 1561.1Sfvdl#endif /* !_AMD64_ASM_H_ */ 157