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Include <machine/asm.h> instead of defining our own ENTRY() macro 

Changed all instances of ENTRY() to match the new calling convention
(it takes a second argument ).

Added new macros:
	SYSTRAP(x):		Expands to the code used to call syscall x.
				This is used to simplify other macros.

	SYSCALL_NOERROR(x):	Like SYSCALL except that "x" is a syscall
				that can never fail.

	RSYSCALL_NOERROR(x):	Like RSYSCALL except that "x" is a syscall
				that can never fail.
This commit is contained in:
jtc 1996-10-18 19:37:48 +00:00
parent 41a87a7ae0
commit 41056da8a0
1 changed files with 28 additions and 24 deletions
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52
lib/libc/arch/vax/SYS.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: SYS.h,v 1.2 1995/12/12 15:21:31 ragge Exp $ */
/* $NetBSD: SYS.h,v 1.3 1996/10/18 19:37:48 jtc Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
@ -34,34 +34,38 @@
* @(#)SYS.h 8.1 (Berkeley) 6/4/93
*/
#include <machine/asm.h>
#include <sys/syscall.h>
#ifndef __STDC__
#ifdef PROF
#define ENTRY(x) .globl _/**/x; .align 2; _/**/x/**/: .word 0; \
.data; 1:; .long 0; .text; moval 1b,r0; jsb mcount
#ifdef __STDC__
#define SYSTRAP(x) chmk $ SYS_ ## x
#else
#define ENTRY(x) .globl _/**/x; .align 2; _/**/x/**/: .word 0
#endif PROF
#define SYSCALL(x) err: jmp cerror; ENTRY(x); chmk $ SYS_/**/x; jcs err
#define RSYSCALL(x) SYSCALL(x); ret
#define PSEUDO(x,y) ENTRY(x); chmk $ SYS_/**/y; ret
#define CALL(x,y) calls $/**/x, _/**/y
#else
#ifdef PROF
#define ENTRY(x) .globl _ ## x; .align 2; _ ## x ## : .word 0; \
.data; 1:; .long 0; .text; moval 1b,r0; jsb mcount
#else
#define ENTRY(x) .globl _ ## x; .align 2; _ ## x ## : .word 0
#endif PROF
#define SYSCALL(x) err: jmp cerror; ENTRY(x); chmk $ SYS_ ## x; jcs err
#define RSYSCALL(x) SYSCALL(x); ret
#define PSEUDO(x,y) ENTRY(x); chmk $ SYS_ ## y; ret
#define CALL(x,y) calls $ ## x, _ ## y
#define SYSTRAP(x) chmk $ SYS_/**/x
#endif
#define SYSCALL(x) \
err: jmp cerror; \
ENTRY(x, 0); \
SYSTRAP(x); \
jcs err
#define RSYSCALL(x) \
SYSCALL(x); \
ret
#define SYSCALL_NOERROR(x) \
ENTRY(x, 0); \
SYSTRAP(x)
#define RSYSCALL_NOERROR(x) \
SYSCALL_NOERROR(x); \
ret
#define PSEUDO(x,y) \
ENTRY(x, 0); \
SYSTRAP(y); \
ret
#define ASMSTR .asciz
.globl cerror