mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-06-24 04:15:36 +02:00
be415cc6a5
2006-11-04 Paolo Bonzini <bonzini@gnu.org> * lightning/ppc/core.h: Implement jit_allocai, define JIT_FP to be R1. * lightning/ppc/funcs.h: Store frame size into _jitl. Store R1 before the STMW, so that the offset is unchanged when we patch the STMW. * lightning/i386/core.h: Define JIT_FP to be EBP. * lightning/i386/core-32.h: Implement jit_allocai, put LEAVE in the epilog if jit_allocai was used. * lightning/i386/core-64.h: Implement jit_allocai, put LEAVE in the epilog if jit_allocai was used. git-archimport-id: bonzini@gnu.org--2004b/lightning--stable--1.2--patch-36
102 lines
3.9 KiB
C
102 lines
3.9 KiB
C
/******************************** -*- C -*- ****************************
|
|
*
|
|
* Platform-independent layer (i386 version)
|
|
*
|
|
***********************************************************************/
|
|
|
|
|
|
/***********************************************************************
|
|
*
|
|
* Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
|
|
* Written by Paolo Bonzini.
|
|
*
|
|
* This file is part of GNU lightning.
|
|
*
|
|
* GNU lightning is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published
|
|
* by the Free Software Foundation; either version 2.1, or (at your option)
|
|
* any later version.
|
|
*
|
|
* GNU lightning is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
* License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with GNU lightning; see the file COPYING.LESSER; if not, write to the
|
|
* Free Software Foundation, 59 Temple Place - Suite 330, Boston,
|
|
* MA 02111-1307, USA.
|
|
*
|
|
***********************************************************************/
|
|
|
|
|
|
|
|
#ifndef __lightning_core_h
|
|
#define __lightning_core_h
|
|
|
|
#include "core-i386.h"
|
|
|
|
#define JIT_CAN_16 1
|
|
|
|
struct jit_local_state {
|
|
int framesize;
|
|
int argssize;
|
|
int alloca_offset;
|
|
int alloca_slack;
|
|
};
|
|
|
|
#define jit_base_prolog() (PUSHLr(_EBP), MOVLrr(_ESP, _EBP), PUSHLr(_EBX), PUSHLr(_ESI), PUSHLr(_EDI))
|
|
#define jit_prolog(n) (_jitl.framesize = 8, _jitl.alloca_offset = -12, jit_base_prolog())
|
|
|
|
/* Used internally. SLACK is used by the Darwin ABI which keeps the stack
|
|
aligned to 16-bytes. */
|
|
|
|
#define jit_allocai_internal(amount, slack) \
|
|
(((amount) < _jitl.alloca_slack \
|
|
? 0 \
|
|
: (_jitl.alloca_slack += (amount) + (slack), \
|
|
((amount) + (slack) == sizeof (int) \
|
|
? PUSHLr(_EAX) \
|
|
: SUBLir((amount) + (slack), _ESP)))), \
|
|
_jitl.alloca_slack -= (amount), \
|
|
_jitl.alloca_offset -= (amount))
|
|
|
|
/* The += in argssize allows for stack pollution */
|
|
|
|
#ifdef __APPLE__
|
|
/* Stack must stay 16-byte aligned: */
|
|
# define jit_prepare_i(ni) (((ni & 0x3) \
|
|
? SUBLir(4 * ((((ni) + 3) & ~(0x3)) - (ni)), JIT_SP) \
|
|
: (void)0), \
|
|
_jitl.argssize += (((ni) + 3) & ~(0x3)))
|
|
|
|
#define jit_allocai(n) \
|
|
jit_allocai_internal ((n), (_jitl.alloca_slack - (n)) & 15)
|
|
|
|
#else
|
|
# define jit_prepare_i(ni) (_jitl.argssize += (ni))
|
|
|
|
#define jit_allocai(n) \
|
|
jit_allocai_internal ((n), 0)
|
|
#endif
|
|
|
|
#define jit_pusharg_i(rs) PUSHLr(rs)
|
|
#define jit_finish(sub) ((void)jit_calli((sub)), ADDLir(sizeof(long) * _jitl.argssize, JIT_SP), _jitl.argssize = 0)
|
|
#define jit_finishr(reg) (jit_callr((reg)), ADDLir(sizeof(long) * _jitl.argssize, JIT_SP), _jitl.argssize = 0)
|
|
|
|
#define jit_arg_c() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_uc() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_s() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_us() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_i() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_ui() ((_jitl.framesize += sizeof(int)) - sizeof(int))
|
|
#define jit_arg_l() ((_jitl.framesize += sizeof(long)) - sizeof(long))
|
|
#define jit_arg_ul() ((_jitl.framesize += sizeof(long)) - sizeof(long))
|
|
#define jit_arg_p() ((_jitl.framesize += sizeof(long)) - sizeof(long))
|
|
|
|
#define jit_patch_long_at(jump_pc,v) (*_PSL((jump_pc) - sizeof(long)) = _jit_SL((jit_insn *)(v) - (jump_pc)))
|
|
#define jit_patch_at(jump_pc,v) jit_patch_long_at(jump_pc, v)
|
|
#define jit_ret() (POPLr(_EDI), POPLr(_ESI), POPLr(_EBX), (_jitl.alloca_offset < -12 ? LEAVE_() : POPLr(_EBP)), RET_())
|
|
|
|
#endif /* __lightning_core_h */
|
|
|