1 /*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90 33 * $FreeBSD: src/sys/amd64/include/asm.h,v 1.18 2007/08/22 04:26:07 jkoshy Exp $ 34 */ 35 36 #ifndef _BSD_ASM_H_ 37 #define _BSD_ASM_H_ 38 39 #ifdef __APPLE__ 40 #include "../i387/osx_asm.h" 41 #define CNAME(x) EXT(x) 42 #else 43 #include "bsd_cdefs.h" 44 45 #ifdef PIC 46 #define PIC_PLT(x) x@PLT 47 #define PIC_GOT(x) x@GOTPCREL(%rip) 48 #else 49 #define PIC_PLT(x) x 50 #define PIC_GOT(x) x 51 #endif 52 53 /* 54 * CNAME and HIDENAME manage the relationship between symbol names in C 55 * and the equivalent assembly language names. CNAME is given a name as 56 * it would be used in a C program. It expands to the equivalent assembly 57 * language name. HIDENAME is given an assembly-language name, and expands 58 * to a possibly-modified form that will be invisible to C programs. 59 */ 60 #define CNAME(csym) csym 61 #define HIDENAME(asmsym) .asmsym 62 63 #define _START_ENTRY .p2align 4,0x90 64 65 #if defined(__ELF__) 66 #define _ENTRY(x) .text; _START_ENTRY; \ 67 .globl CNAME(x); .type CNAME(x),@function; CNAME(x): 68 #define END(x) .size x, . - x 69 70 #elif defined(_WIN32) 71 #ifndef _MSC_VER 72 #define END(x) .end 73 #define _START_ENTRY_WIN .text; _START_ENTRY 74 #else 75 #define END(x) end 76 #define _START_ENTRY_WIN .code; _START_ENTRY 77 #endif 78 #define _ENTRY(x) _START_ENTRY_WIN; \ 79 .globl CNAME(x); .section .drectve; .ascii " -export:", #x; \ 80 .section .text; .def CNAME(x); .scl 2; .type 32; .endef; CNAME(x): 81 #endif 82 83 #ifdef PROF 84 #define ALTENTRY(x) _ENTRY(x); \ 85 pushq %rbp; movq %rsp,%rbp; \ 86 call PIC_PLT(HIDENAME(mcount)); \ 87 popq %rbp; \ 88 jmp 9f 89 #define ENTRY(x) _ENTRY(x); \ 90 pushq %rbp; movq %rsp,%rbp; \ 91 call PIC_PLT(HIDENAME(mcount)); \ 92 popq %rbp; \ 93 9: 94 #else 95 #define ALTENTRY(x) _ENTRY(x) 96 #define ENTRY(x) _ENTRY(x) 97 #endif 98 99 100 #define RCSID(x) .text; .asciz x 101 102 #undef __FBSDID 103 #if !defined(lint) && !defined(STRIP_FBSDID) 104 #define __FBSDID(s) .ident s 105 #else 106 #define __FBSDID(s) /* nothing */ 107 #endif /* not lint and not STRIP_FBSDID */ 108 109 #endif 110 #endif /* !_BSD_ASM_H_ */ 111