e1ef71de2b
could use different versions of the math code depending on whether there was real floating point hardware or math emulation. Since the fpu is part of the core specification on amd64, there is no need for this here. Approved by: re (blanket amd64/*)
95 lines
3.3 KiB
C
95 lines
3.3 KiB
C
/*-
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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.
|
|
*
|
|
* from: @(#)DEFS.h 5.1 (Berkeley) 4/23/90
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_ASM_H_
|
|
#define _MACHINE_ASM_H_
|
|
|
|
#include <sys/cdefs.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
|
|
|
|
/*
|
|
* CNAME and HIDENAME manage the relationship between symbol names in C
|
|
* and the equivalent assembly language names. CNAME is given a name as
|
|
* it would be used in a C program. It expands to the equivalent assembly
|
|
* language name. HIDENAME is given an assembly-language name, and expands
|
|
* to a possibly-modified form that will be invisible to C programs.
|
|
*/
|
|
#define CNAME(csym) csym
|
|
#define HIDENAME(asmsym) __CONCAT(.,asmsym)
|
|
|
|
/* XXX should use .p2align 4,0x90 for -m486. */
|
|
#define _START_ENTRY .text; .p2align 2,0x90
|
|
|
|
#define _ENTRY(x) _START_ENTRY; \
|
|
.globl CNAME(x); .type CNAME(x),@function; CNAME(x):
|
|
|
|
#ifdef PROF
|
|
#define ALTENTRY(x) _ENTRY(x); \
|
|
pushl %rbp; movl %rsp,%rbp; \
|
|
call PIC_PLT(HIDENAME(mcount)); \
|
|
popl %rbp; \
|
|
jmp 9f
|
|
#define ENTRY(x) _ENTRY(x); \
|
|
pushl %rbp; movl %rsp,%rbp; \
|
|
call PIC_PLT(HIDENAME(mcount)); \
|
|
popl %rbp; \
|
|
9:
|
|
#else
|
|
#define ALTENTRY(x) _ENTRY(x)
|
|
#define ENTRY(x) _ENTRY(x)
|
|
#endif
|
|
|
|
#define RCSID(x) .text; .asciz x
|
|
|
|
#undef __FBSDID
|
|
#if !defined(lint) && !defined(STRIP_FBSDID)
|
|
#define __FBSDID(s) .ident s
|
|
#else
|
|
#define __FBSDID(s) /* nothing */
|
|
#endif /* not lint and not STRIP_FBSDID */
|
|
|
|
#endif /* !_MACHINE_ASM_H_ */
|