jit-md.h

linux下建立JAVA虚拟机的源码KAFFE

/*
 * i386/dgux/jit-md.h
 * Unixware i386 JIT configuration information.
 *
 * Copyright (c) 1996, 1997
 *	Transvirtual Technologies, Inc.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution 
 * of this file. 
 */

#ifndef __i386_dgux_jit_md_h
#define __i386_dgux_jit_md_h

/**/
/* Include common information. */
/**/
#include "i386/jit.h"

/*
 * graf 961201: apparently DG/UX assembler does not support numeric labels
 */

#undef	CALL_KAFFE_FUNCTION_VARARGS
#define	CALL_KAFFE_FUNCTION_VARARGS(meth, obj, nargs, argptr, retval)	\
	asm volatile ("	\n"						\
"		movl %3,%%eax \n"					\
".L1_%5:	cmpl $0,%%eax \n"					\
"		je .L2_%5 \n"						\
"		decl %%eax \n"						\
"		pushl (%4,%%eax,4) \n"					\
"		jmp .L1_%5 \n"						\
".L2_%5:	\n"								\
"		pushl %2 \n"						\
"		call *%1 \n"						\
"		movl %%eax,%0 \n"					\
"		" : "=r" (retval) :					\
	    "r" (meth->ncode), "r" (obj), "r" (nargs), "r" (argptr),	\
	    "X" (__LINE__)						\
	    : "eax", "cc" );						\
	asm volatile ("	\n						"\
"		addl %0,%%esp" : : "r" (4*(nargs+1)) : "cc")

/* Function prototype for signal handlers */
#define	EXCEPTIONPROTO SIGNAL_ARGS(sig, ctx)

/* Get the first exception frame from a signal handler */
#define	EXCEPTIONFRAME(f, c)						\
	(f).retbp = (c)->uc_mcontext.gregs[R_EBP];			\
	(f).retpc = (c)->uc_mcontext.gregs[R_EIP] + 1

#endif