1*4a5d661aSToomas Soome /*- 2*4a5d661aSToomas Soome * Copyright (c) 1990 The Regents of the University of California. 3*4a5d661aSToomas Soome * All rights reserved. 4*4a5d661aSToomas Soome * 5*4a5d661aSToomas Soome * This code is derived from software contributed to Berkeley by 6*4a5d661aSToomas Soome * William Jolitz. 7*4a5d661aSToomas Soome * 8*4a5d661aSToomas Soome * Redistribution and use in source and binary forms, with or without 9*4a5d661aSToomas Soome * modification, are permitted provided that the following conditions 10*4a5d661aSToomas Soome * are met: 11*4a5d661aSToomas Soome * 1. Redistributions of source code must retain the above copyright 12*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer. 13*4a5d661aSToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 14*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer in the 15*4a5d661aSToomas Soome * documentation and/or other materials provided with the distribution. 16*4a5d661aSToomas Soome * 4. Neither the name of the University nor the names of its contributors 17*4a5d661aSToomas Soome * may be used to endorse or promote products derived from this software 18*4a5d661aSToomas Soome * without specific prior written permission. 19*4a5d661aSToomas Soome * 20*4a5d661aSToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21*4a5d661aSToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22*4a5d661aSToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23*4a5d661aSToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24*4a5d661aSToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25*4a5d661aSToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26*4a5d661aSToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27*4a5d661aSToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28*4a5d661aSToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29*4a5d661aSToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30*4a5d661aSToomas Soome * SUCH DAMAGE. 31*4a5d661aSToomas Soome * 32*4a5d661aSToomas Soome * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90 33*4a5d661aSToomas Soome * $FreeBSD$ 34*4a5d661aSToomas Soome */ 35*4a5d661aSToomas Soome 36*4a5d661aSToomas Soome #ifndef _MACHINE_ASM_H_ 37*4a5d661aSToomas Soome #define _MACHINE_ASM_H_ 38*4a5d661aSToomas Soome 39*4a5d661aSToomas Soome #include <sys/cdefs.h> 40*4a5d661aSToomas Soome 41*4a5d661aSToomas Soome #ifdef PIC 42*4a5d661aSToomas Soome #define PIC_PLT(x) x@PLT 43*4a5d661aSToomas Soome #define PIC_GOT(x) x@GOTPCREL(%rip) 44*4a5d661aSToomas Soome #else 45*4a5d661aSToomas Soome #define PIC_PLT(x) x 46*4a5d661aSToomas Soome #endif 47*4a5d661aSToomas Soome 48*4a5d661aSToomas Soome /* 49*4a5d661aSToomas Soome * CNAME and HIDENAME manage the relationship between symbol names in C 50*4a5d661aSToomas Soome * and the equivalent assembly language names. CNAME is given a name as 51*4a5d661aSToomas Soome * it would be used in a C program. It expands to the equivalent assembly 52*4a5d661aSToomas Soome * language name. HIDENAME is given an assembly-language name, and expands 53*4a5d661aSToomas Soome * to a possibly-modified form that will be invisible to C programs. 54*4a5d661aSToomas Soome */ 55*4a5d661aSToomas Soome #define CNAME(csym) csym 56*4a5d661aSToomas Soome #define HIDENAME(asmsym) .asmsym 57*4a5d661aSToomas Soome 58*4a5d661aSToomas Soome #define _START_ENTRY .text; .p2align 4,0x90 59*4a5d661aSToomas Soome 60*4a5d661aSToomas Soome #define _ENTRY(x) _START_ENTRY; \ 61*4a5d661aSToomas Soome .globl CNAME(x); .type CNAME(x),@function; CNAME(x): 62*4a5d661aSToomas Soome 63*4a5d661aSToomas Soome #ifdef PROF 64*4a5d661aSToomas Soome #define ALTENTRY(x) _ENTRY(x); \ 65*4a5d661aSToomas Soome pushq %rbp; movq %rsp,%rbp; \ 66*4a5d661aSToomas Soome call PIC_PLT(HIDENAME(mcount)); \ 67*4a5d661aSToomas Soome popq %rbp; \ 68*4a5d661aSToomas Soome jmp 9f 69*4a5d661aSToomas Soome #define ENTRY(x) _ENTRY(x); \ 70*4a5d661aSToomas Soome pushq %rbp; movq %rsp,%rbp; \ 71*4a5d661aSToomas Soome call PIC_PLT(HIDENAME(mcount)); \ 72*4a5d661aSToomas Soome popq %rbp; \ 73*4a5d661aSToomas Soome 9: 74*4a5d661aSToomas Soome #else 75*4a5d661aSToomas Soome #define ALTENTRY(x) _ENTRY(x) 76*4a5d661aSToomas Soome #define ENTRY(x) _ENTRY(x) 77*4a5d661aSToomas Soome #endif 78*4a5d661aSToomas Soome 79*4a5d661aSToomas Soome #define END(x) .size x, . - x 80*4a5d661aSToomas Soome /* 81*4a5d661aSToomas Soome * WEAK_REFERENCE(): create a weak reference alias from sym. 82*4a5d661aSToomas Soome * The macro is not a general asm macro that takes arbitrary names, 83*4a5d661aSToomas Soome * but one that takes only C names. It does the non-null name 84*4a5d661aSToomas Soome * translation inside the macro. 85*4a5d661aSToomas Soome */ 86*4a5d661aSToomas Soome #define WEAK_REFERENCE(sym, alias) \ 87*4a5d661aSToomas Soome .weak CNAME(alias); \ 88*4a5d661aSToomas Soome .equ CNAME(alias),CNAME(sym) 89*4a5d661aSToomas Soome 90*4a5d661aSToomas Soome #define RCSID(x) .text; .asciz x 91*4a5d661aSToomas Soome 92*4a5d661aSToomas Soome #undef __FBSDID 93*4a5d661aSToomas Soome #if !defined(lint) && !defined(STRIP_FBSDID) 94*4a5d661aSToomas Soome #define __FBSDID(s) .ident s 95*4a5d661aSToomas Soome #else 96*4a5d661aSToomas Soome #define __FBSDID(s) /* nothing */ 97*4a5d661aSToomas Soome #endif /* not lint and not STRIP_FBSDID */ 98*4a5d661aSToomas Soome 99*4a5d661aSToomas Soome #endif /* !_MACHINE_ASM_H_ */ 100