199767f8919635c4928607450d9e0abb932109ceToomas Soome/*-
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1990 The Regents of the University of California.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * This code is derived from software contributed to Berkeley by
199767f8919635c4928607450d9e0abb932109ceToomas Soome * William Jolitz.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * are met:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 4. Neither the name of the University nor the names of its contributors
199767f8919635c4928607450d9e0abb932109ceToomas Soome * may be used to endorse or promote products derived from this software
199767f8919635c4928607450d9e0abb932109ceToomas Soome * without specific prior written permission.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome *
199767f8919635c4928607450d9e0abb932109ceToomas Soome * from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
199767f8919635c4928607450d9e0abb932109ceToomas Soome * $FreeBSD$
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#ifndef _MACHINE_ASM_H_
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define _MACHINE_ASM_H_
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <sys/cdefs.h>
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#ifdef PIC
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define PIC_PLT(x) x@PLT
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define PIC_GOT(x) x@GOTPCREL(%rip)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#else
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define PIC_PLT(x) x
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * CNAME and HIDENAME manage the relationship between symbol names in C
199767f8919635c4928607450d9e0abb932109ceToomas Soome * and the equivalent assembly language names. CNAME is given a name as
199767f8919635c4928607450d9e0abb932109ceToomas Soome * it would be used in a C program. It expands to the equivalent assembly
199767f8919635c4928607450d9e0abb932109ceToomas Soome * language name. HIDENAME is given an assembly-language name, and expands
199767f8919635c4928607450d9e0abb932109ceToomas Soome * to a possibly-modified form that will be invisible to C programs.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define CNAME(csym) csym
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define HIDENAME(asmsym) .asmsym
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define _START_ENTRY .text; .p2align 4,0x90
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define _ENTRY(x) _START_ENTRY; \
199767f8919635c4928607450d9e0abb932109ceToomas Soome .globl CNAME(x); .type CNAME(x),@function; CNAME(x):
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#ifdef PROF
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ALTENTRY(x) _ENTRY(x); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushq %rbp; movq %rsp,%rbp; \
199767f8919635c4928607450d9e0abb932109ceToomas Soome call PIC_PLT(HIDENAME(mcount)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome popq %rbp; \
199767f8919635c4928607450d9e0abb932109ceToomas Soome jmp 9f
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ENTRY(x) _ENTRY(x); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome pushq %rbp; movq %rsp,%rbp; \
199767f8919635c4928607450d9e0abb932109ceToomas Soome call PIC_PLT(HIDENAME(mcount)); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome popq %rbp; \
199767f8919635c4928607450d9e0abb932109ceToomas Soome 9:
199767f8919635c4928607450d9e0abb932109ceToomas Soome#else
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ALTENTRY(x) _ENTRY(x)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ENTRY(x) _ENTRY(x)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define END(x) .size x, . - x
199767f8919635c4928607450d9e0abb932109ceToomas Soome/*
199767f8919635c4928607450d9e0abb932109ceToomas Soome * WEAK_REFERENCE(): create a weak reference alias from sym.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * The macro is not a general asm macro that takes arbitrary names,
199767f8919635c4928607450d9e0abb932109ceToomas Soome * but one that takes only C names. It does the non-null name
199767f8919635c4928607450d9e0abb932109ceToomas Soome * translation inside the macro.
199767f8919635c4928607450d9e0abb932109ceToomas Soome */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define WEAK_REFERENCE(sym, alias) \
199767f8919635c4928607450d9e0abb932109ceToomas Soome .weak CNAME(alias); \
199767f8919635c4928607450d9e0abb932109ceToomas Soome .equ CNAME(alias),CNAME(sym)
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define RCSID(x) .text; .asciz x
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#undef __FBSDID
199767f8919635c4928607450d9e0abb932109ceToomas Soome#if !defined(lint) && !defined(STRIP_FBSDID)
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define __FBSDID(s) .ident s
199767f8919635c4928607450d9e0abb932109ceToomas Soome#else
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define __FBSDID(s) /* nothing */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* not lint and not STRIP_FBSDID */
199767f8919635c4928607450d9e0abb932109ceToomas Soome
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* !_MACHINE_ASM_H_ */