/* $OpenBSD: asm.h,v 1.3 2011/03/23 16:54:34 pirofti Exp $ */ /* $NetBSD: asm.h,v 1.2 2003/05/02 18:05:47 yamt Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)asm.h 5.5 (Berkeley) 5/7/91 */ #ifndef _MACHINE_ASM_H_ #define _MACHINE_ASM_H_ #ifdef PIC #define PIC_PLT(x) x@PLT #define PIC_GOT(x) x@GOTPCREL(%rip) #else #define PIC_PLT(x) x #define PIC_GOT(x) x #endif # define _C_LABEL(x) x #define _ASM_LABEL(x) x #define CVAROFF(x,y) (_C_LABEL(x)+y)(%rip) #ifdef __STDC__ # define __CONCAT(x,y) x ## y # define __STRING(x) #x #else # define __CONCAT(x,y) x/**/y # define __STRING(x) "x" #endif /* let kernels and others override entrypoint alignment */ #ifndef _ALIGN_TEXT #define _ALIGN_TEXT .align 16, 0x90 #endif #define _ENTRY(x) \ .text; _ALIGN_TEXT; .globl x; .type x,@function; x: #ifdef _KERNEL /* XXX Can't use __CONCAT() here, as it would be evaluated incorrectly. */ #ifdef __STDC__ #define IDTVEC(name) \ .text; ALIGN_TEXT; .globl X ## name; .type X ## name,@function; X ## name: #else #define IDTVEC(name) \ .text; ALIGN_TEXT; .globl X/**/name; .type X/**/name,@function; X/**/name: #endif /* __STDC__ */ #endif /* _KERNEL */ #ifdef __STDC__ #define CPUVAR(off) %gs:CPU_INFO_ ## off #else #define CPUVAR(off) %gs:CPU_INFO_/**/off #endif #ifdef GPROF # define _PROF_PROLOGUE \ pushq %rbp; leaq (%rsp),%rbp; call PIC_PLT(__mcount); popq %rbp #else # define _PROF_PROLOGUE #endif #define ENTRY(y) _ENTRY(_C_LABEL(y)); _PROF_PROLOGUE #define NENTRY(y) _ENTRY(_C_LABEL(y)) #define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE #define ASMSTR .asciz #define RCSID(x) .text; .asciz x #define WEAK_ALIAS(alias,sym) \ .weak alias; \ alias = sym /* XXXfvdl do not use stabs here */ #ifdef __STDC__ #define WARN_REFERENCES(sym,msg) \ .stabs msg ## ,30,0,0,0 ; \ .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0 #else #define WARN_REFERENCES(sym,msg) \ .stabs msg,30,0,0,0 ; \ .stabs __STRING(sym),1,0,0,0 #endif /* __STDC__ */ #endif /* !_MACHINE_ASM_H_ */