/* dyn_rec_stubs.c -- Stubs to allow the recompiler to be run standalone
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/* dyn_rec_stubs.c -- Stubs to allow the recompiler to be run standalone
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Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org
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Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Stubs to test the recompiler */
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/* Stubs to test the recompiler */
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#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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#include <errno.h>
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#include <errno.h>
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#include <byteswap.h>
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#include <byteswap.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <inttypes.h>
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#include "arch.h"
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#include "arch.h"
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#include "immu.h"
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#include "immu.h"
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#include "spr_defs.h"
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#include "spr_defs.h"
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#include "opcode/or32.h"
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#include "opcode/or32.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "execute.h"
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#include "execute.h"
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#include "sim-config.h"
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#include "sim-config.h"
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#include "sched.h"
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#include "sched.h"
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#include "i386_regs.h"
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#include "i386_regs.h"
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#include "dyn_rec.h"
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#include "dyn_rec.h"
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#define PAGE_LEN 8192
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#define PAGE_LEN 8192
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int do_stats = 0;
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int do_stats = 0;
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/* NOTE: Directly copied from execute.c */
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/* NOTE: Directly copied from execute.c */
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uorreg_t eval_operand_val(uint32_t insn, struct insn_op_struct *opd)
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uorreg_t eval_operand_val(uint32_t insn, struct insn_op_struct *opd)
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{
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{
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unsigned long operand = 0;
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unsigned long operand = 0;
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unsigned long sbit;
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unsigned long sbit;
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unsigned int nbits = 0;
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unsigned int nbits = 0;
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while(1) {
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while(1) {
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operand |= ((insn >> (opd->type & OPTYPE_SHR)) & ((1 << opd->data) - 1)) << nbits;
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operand |= ((insn >> (opd->type & OPTYPE_SHR)) & ((1 << opd->data) - 1)) << nbits;
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nbits += opd->data;
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nbits += opd->data;
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if(opd->type & OPTYPE_OP)
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if(opd->type & OPTYPE_OP)
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break;
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break;
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opd++;
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opd++;
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}
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}
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if(opd->type & OPTYPE_SIG) {
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if(opd->type & OPTYPE_SIG) {
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sbit = (opd->type & OPTYPE_SBIT) >> OPTYPE_SBIT_SHR;
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sbit = (opd->type & OPTYPE_SBIT) >> OPTYPE_SBIT_SHR;
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if(operand & (1 << sbit)) operand |= ~REG_C(0) << sbit;
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if(operand & (1 << sbit)) operand |= ~REG_C(0) << sbit;
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}
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}
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return operand;
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return operand;
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}
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}
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oraddr_t immu_translate(oraddr_t virtaddr)
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oraddr_t immu_translate(oraddr_t virtaddr)
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{
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{
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return virtaddr;
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return virtaddr;
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}
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}
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oraddr_t peek_into_itlb(oraddr_t virtaddr)
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oraddr_t peek_into_itlb(oraddr_t virtaddr)
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{
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{
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return virtaddr;
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return virtaddr;
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}
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}
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void do_scheduler()
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void do_scheduler()
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{
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{
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return;
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return;
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}
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}
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static uint32_t page[PAGE_LEN / 4];
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static uint32_t page[PAGE_LEN / 4];
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uint32_t eval_insn(oraddr_t addr, int *brkp)
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uint32_t eval_insn(oraddr_t addr, int *brkp)
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{
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{
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if(addr >= PAGE_LEN) {
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if(addr >= PAGE_LEN) {
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fprintf(stderr, "DR is trying to access memory outside the boundries of a page %08x\n", addr);
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fprintf(stderr, "DR is trying to access memory outside the boundries of a page %08x\n", addr);
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return 0;
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return 0;
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}
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}
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return bswap_32(page[addr / 4]);
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return bswap_32(page[addr / 4]);
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}
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}
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int main(int argc, char **argv)
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int main(int argc, char **argv)
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{
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{
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FILE *f;
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FILE *f;
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long len;
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long len;
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int i;
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int i;
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struct dyn_page *dp;
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struct dyn_page *dp;
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long off = 0;
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long off = 0;
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if((argc < 3) || (argc > 4)) {
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if((argc < 3) || (argc > 4)) {
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fprintf(stderr, "Usage: %s <binary file to recompile> <output code file> [offset into the file]\n",
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fprintf(stderr, "Usage: %s <binary file to recompile> <output code file> [offset into the file]\n",
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argv[0]);
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argv[0]);
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return 1;
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return 1;
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}
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}
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if(argc == 4)
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if(argc == 4)
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off = strtol(argv[3], NULL, 0);
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off = strtol(argv[3], NULL, 0);
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f = fopen(argv[1], "r");
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f = fopen(argv[1], "r");
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if(!f) {
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if(!f) {
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fprintf(stderr, "Unable to open %s: %s\n", argv[1], strerror(errno));
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fprintf(stderr, "Unable to open %s: %s\n", argv[1], strerror(errno));
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return 1;
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return 1;
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}
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}
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if(fseek(f, 0, SEEK_END)) {
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if(fseek(f, 0, SEEK_END)) {
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fprintf(stderr, "Uanble to seek to the end of the file %s: %s\n", argv[1],
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fprintf(stderr, "Uanble to seek to the end of the file %s: %s\n", argv[1],
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strerror(errno));
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strerror(errno));
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return 1;
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return 1;
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}
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}
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len = ftell(f);
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len = ftell(f);
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if(len == -1) {
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if(len == -1) {
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fprintf(stderr, "Unable to determine file length: %s\n", strerror(errno));
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fprintf(stderr, "Unable to determine file length: %s\n", strerror(errno));
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return 1;
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return 1;
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}
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}
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fseek(f, off, SEEK_SET);
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fseek(f, off, SEEK_SET);
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if((len - off) < PAGE_LEN) {
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if((len - off) < PAGE_LEN) {
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printf("File is less than 1 page long, padding with zeros.\n");
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printf("File is less than 1 page long, padding with zeros.\n");
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fread(page, len, 1, f);
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fread(page, len, 1, f);
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/* Pad the page with zeros */
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/* Pad the page with zeros */
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for(i = len; i < PAGE_LEN; i++)
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for(i = len; i < PAGE_LEN; i++)
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page[i] = 0;
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page[i] = 0;
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} else
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} else
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fread(page, PAGE_LEN, 1, f);
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fread(page, PAGE_LEN, 1, f);
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fclose(f);
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fclose(f);
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build_automata();
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build_automata();
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init_dyn_recomp();
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init_dyn_recomp();
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dp = new_dp(0);
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dp = new_dp(0);
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/* Cool, recompile the page */
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/* Cool, recompile the page */
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fprintf(stderr, "Hold on a sec, I'm recompileing the given page...\n");
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fprintf(stderr, "Hold on a sec, I'm recompileing the given page...\n");
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recompile_page(dp);
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recompile_page(dp);
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fprintf(stderr, "Recompiled page length: %i\n", dp->host_len);
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fprintf(stderr, "Recompiled page length: %i\n", dp->host_len);
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fprintf(stderr, "Recompiled to: %p\n", dp->host_page);
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fprintf(stderr, "Recompiled to: %p\n", dp->host_page);
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fprintf(stderr, "Dumping reced page to disk...\n");
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fprintf(stderr, "Dumping reced page to disk...\n");
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f = fopen(argv[2], "w");
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f = fopen(argv[2], "w");
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fwrite(dp->host_page, dp->host_len, 1, f);
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fwrite(dp->host_page, dp->host_len, 1, f);
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fclose(f);
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fclose(f);
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/*
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/*
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printf("--- Recompiled or disassembly ---\n");
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printf("--- Recompiled or disassembly ---\n");
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for(i = 0; i < 2048; i++) {
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for(i = 0; i < 2048; i++) {
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extern char *disassembled;
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extern char *disassembled;
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disassemble_insn(eval_insn(i * 4, NULL));
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disassemble_insn(eval_insn(i * 4, NULL));
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if(!eval_insn(i * 4, NULL)) continue;
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if(!eval_insn(i * 4, NULL)) continue;
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printf("%04x: %08x %s\n", i * 4, eval_insn(i * 4, NULL), disassembled);
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printf("%04x: %08x %s\n", i * 4, eval_insn(i * 4, NULL), disassembled);
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}
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}
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printf("--- Recompiled or disassembly end ---\n");
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printf("--- Recompiled or disassembly end ---\n");
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*/
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*/
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printf("--- Recompiled offsets ---\n");
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printf("--- Recompiled offsets ---\n");
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for(i = 0; i < (PAGE_LEN / 4); i++)
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for(i = 0; i < (PAGE_LEN / 4); i++)
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printf("%"PRIxADDR": %x\n", i * 4, dp->locs[i] - dp->host_page);
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printf("%"PRIxADDR": %x\n", i * 4, dp->locs[i] - dp->host_page);
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printf("--- Recompiled offsets end ---\n");
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printf("--- Recompiled offsets end ---\n");
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destruct_automata();
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destruct_automata();
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return 0;
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return 0;
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}
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}
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/* Lame linker stubs. These are only referenced in the recompiled code */
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/* Lame linker stubs. These are only referenced in the recompiled code */
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struct cpu_state cpu_state;
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struct cpu_state cpu_state;
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struct runtime runtime;
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struct runtime runtime;
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struct scheduler_struct scheduler;
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struct scheduler_struct scheduler;
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struct config config;
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struct config config;
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int immu_ex_from_insn;
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int immu_ex_from_insn;
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/* FIXME: eval_insn should become this */
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/* FIXME: eval_insn should become this */
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uint32_t eval_insn_direct(oraddr_t memaddr, int through_mmu)
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uint32_t eval_insn_direct(oraddr_t memaddr, int through_mmu)
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{
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{
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return 0;
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return 0;
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}
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}
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uint32_t eval_direct32(oraddr_t memaddr, int through_mmu, int through_dc)
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uint32_t eval_direct32(oraddr_t memaddr, int through_mmu, int through_dc)
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{
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{
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return 0;
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return 0;
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}
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}
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uint32_t eval_mem32(oraddr_t addr, int *breakpoint)
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uint32_t eval_mem32(oraddr_t addr, int *breakpoint)
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{
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{
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return 0;
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return 0;
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}
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}
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uint16_t eval_mem16(oraddr_t addr, int *breakpoint)
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uint16_t eval_mem16(oraddr_t addr, int *breakpoint)
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{
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{
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return 0;
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return 0;
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}
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}
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uint8_t eval_mem8(oraddr_t addr, int *breakpoint)
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uint8_t eval_mem8(oraddr_t addr, int *breakpoint)
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{
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{
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return 0;
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return 0;
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}
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}
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void set_mem32(oraddr_t addr, uint32_t val, int *breakpoint)
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void set_mem32(oraddr_t addr, uint32_t val, int *breakpoint)
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{
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{
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}
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}
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void set_mem16(oraddr_t addr, uint16_t val, int *breakpoint)
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void set_mem16(oraddr_t addr, uint16_t val, int *breakpoint)
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{
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{
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}
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}
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void set_mem8(oraddr_t addr, uint8_t val, int *breakpoint)
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void set_mem8(oraddr_t addr, uint8_t val, int *breakpoint)
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{
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{
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}
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}
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void analysis(struct iqueue_entry *current)
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void analysis(struct iqueue_entry *current)
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{
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{
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}
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}
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void mtspr(uint16_t regno, const uorreg_t value)
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void mtspr(uint16_t regno, const uorreg_t value)
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{
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{
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}
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}
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unsigned long spr_read_ttcr(void)
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unsigned long spr_read_ttcr(void)
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{
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{
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return 0;
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return 0;
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}
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}
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void debug(int level, const char *format,...)
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void debug(int level, const char *format,...)
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{
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{
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}
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}
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void simprintf(oraddr_t stackaddr, unsigned long regparam)
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void simprintf(oraddr_t stackaddr, unsigned long regparam)
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{
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{
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}
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}
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const char *except_name(oraddr_t except)
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const char *except_name(oraddr_t except)
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{
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{
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return NULL;
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return NULL;
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}
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}
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uorreg_t mfspr(const uint16_t regno)
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uorreg_t mfspr(const uint16_t regno)
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{
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{
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return 0;
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return 0;
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}
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}
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static struct dev_memarea dummy_area = {
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static struct dev_memarea dummy_area = {
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ops: { delayr: 1 },
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ops: { delayr: 1 },
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};
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};
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struct dev_memarea *verify_memoryarea(oraddr_t addr)
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struct dev_memarea *verify_memoryarea(oraddr_t addr)
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{
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{
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return &dummy_area;
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return &dummy_area;
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}
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}
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void sim_done (void)
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void sim_done (void)
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{
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{
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}
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}
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