ia64/xen-unstable

view tools/ioemu/translate-all.c @ 15841:c5f735271e22

[IA64] Foreign p2m: Fix vti domain builder.

It should set arch_domain::convmem_end.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Alex Williamson <alex.williamson@hp.com>
date Thu Sep 06 13:48:43 2007 -0600 (2007-09-06)
parents 00618037d37d
children
line source
1 /*
2 * Host code generation
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20 #include <stdarg.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <string.h>
24 #include <inttypes.h>
26 #include "config.h"
28 #define NO_CPU_IO_DEFS
29 #include "cpu.h"
30 #include "exec-all.h"
31 #include "disas.h"
33 extern int dyngen_code(uint8_t *gen_code_buf,
34 uint16_t *label_offsets, uint16_t *jmp_offsets,
35 const uint16_t *opc_buf, const uint32_t *opparam_buf, const long *gen_labels);
37 enum {
38 #define DEF(s, n, copy_size) INDEX_op_ ## s,
39 #include "opc.h"
40 #undef DEF
41 NB_OPS,
42 };
44 uint16_t gen_opc_buf[OPC_BUF_SIZE];
45 uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
46 long gen_labels[OPC_BUF_SIZE];
47 int nb_gen_labels;
49 target_ulong gen_opc_pc[OPC_BUF_SIZE];
50 uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
51 #if defined(TARGET_I386)
52 uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
53 #elif defined(TARGET_SPARC)
54 target_ulong gen_opc_npc[OPC_BUF_SIZE];
55 target_ulong gen_opc_jump_pc[2];
56 #elif defined(TARGET_MIPS)
57 uint32_t gen_opc_hflags[OPC_BUF_SIZE];
58 #endif
60 int code_copy_enabled = 1;
62 #ifdef DEBUG_DISAS
63 static const char *op_str[] = {
64 #define DEF(s, n, copy_size) #s,
65 #include "opc.h"
66 #undef DEF
67 };
69 static uint8_t op_nb_args[] = {
70 #define DEF(s, n, copy_size) n,
71 #include "opc.h"
72 #undef DEF
73 };
75 static const unsigned short opc_copy_size[] = {
76 #define DEF(s, n, copy_size) copy_size,
77 #include "opc.h"
78 #undef DEF
79 };
81 void dump_ops(const uint16_t *opc_buf, const uint32_t *opparam_buf)
82 {
83 const uint16_t *opc_ptr;
84 const uint32_t *opparam_ptr;
85 int c, n, i;
87 opc_ptr = opc_buf;
88 opparam_ptr = opparam_buf;
89 for(;;) {
90 c = *opc_ptr++;
91 n = op_nb_args[c];
92 fprintf(logfile, "0x%04x: %s",
93 (int)(opc_ptr - opc_buf - 1), op_str[c]);
94 for(i = 0; i < n; i++) {
95 fprintf(logfile, " 0x%x", opparam_ptr[i]);
96 }
97 fprintf(logfile, "\n");
98 if (c == INDEX_op_end)
99 break;
100 opparam_ptr += n;
101 }
102 }
104 #endif
106 /* compute label info */
107 static void dyngen_labels(long *gen_labels, int nb_gen_labels,
108 uint8_t *gen_code_buf, const uint16_t *opc_buf)
109 {
110 uint8_t *gen_code_ptr;
111 int c, i;
112 unsigned long gen_code_addr[OPC_BUF_SIZE];
114 if (nb_gen_labels == 0)
115 return;
116 /* compute the address of each op code */
118 gen_code_ptr = gen_code_buf;
119 i = 0;
120 for(;;) {
121 c = opc_buf[i];
122 gen_code_addr[i] =(unsigned long)gen_code_ptr;
123 if (c == INDEX_op_end)
124 break;
125 gen_code_ptr += opc_copy_size[c];
126 i++;
127 }
129 /* compute the address of each label */
130 for(i = 0; i < nb_gen_labels; i++) {
131 gen_labels[i] = gen_code_addr[gen_labels[i]];
132 }
133 }
135 /* return non zero if the very first instruction is invalid so that
136 the virtual CPU can trigger an exception.
138 '*gen_code_size_ptr' contains the size of the generated code (host
139 code).
140 */
141 int cpu_gen_code(CPUState *env, TranslationBlock *tb,
142 int max_code_size, int *gen_code_size_ptr)
143 {
144 uint8_t *gen_code_buf;
145 int gen_code_size;
147 #ifdef USE_CODE_COPY
148 if (code_copy_enabled &&
149 cpu_gen_code_copy(env, tb, max_code_size, &gen_code_size) == 0) {
150 /* nothing more to do */
151 } else
152 #endif
153 {
154 if (gen_intermediate_code(env, tb) < 0)
155 return -1;
157 /* generate machine code */
158 tb->tb_next_offset[0] = 0xffff;
159 tb->tb_next_offset[1] = 0xffff;
160 gen_code_buf = tb->tc_ptr;
161 #ifdef USE_DIRECT_JUMP
162 /* the following two entries are optional (only used for string ops) */
163 tb->tb_jmp_offset[2] = 0xffff;
164 tb->tb_jmp_offset[3] = 0xffff;
165 #endif
166 dyngen_labels(gen_labels, nb_gen_labels, gen_code_buf, gen_opc_buf);
168 gen_code_size = dyngen_code(gen_code_buf, tb->tb_next_offset,
169 #ifdef USE_DIRECT_JUMP
170 tb->tb_jmp_offset,
171 #else
172 NULL,
173 #endif
174 gen_opc_buf, gen_opparam_buf, gen_labels);
175 }
176 *gen_code_size_ptr = gen_code_size;
177 #ifdef DEBUG_DISAS
178 if (loglevel & CPU_LOG_TB_OUT_ASM) {
179 fprintf(logfile, "OUT: [size=%d]\n", *gen_code_size_ptr);
180 disas(logfile, tb->tc_ptr, *gen_code_size_ptr);
181 fprintf(logfile, "\n");
182 fflush(logfile);
183 }
184 #endif
185 return 0;
186 }
188 /* The cpu state corresponding to 'searched_pc' is restored.
189 */
190 int cpu_restore_state(TranslationBlock *tb,
191 CPUState *env, unsigned long searched_pc,
192 void *puc)
193 {
194 int j, c;
195 unsigned long tc_ptr;
196 uint16_t *opc_ptr;
198 #ifdef USE_CODE_COPY
199 if (tb->cflags & CF_CODE_COPY) {
200 return cpu_restore_state_copy(tb, env, searched_pc, puc);
201 }
202 #endif
203 if (gen_intermediate_code_pc(env, tb) < 0)
204 return -1;
206 /* find opc index corresponding to search_pc */
207 tc_ptr = (unsigned long)tb->tc_ptr;
208 if (searched_pc < tc_ptr)
209 return -1;
210 j = 0;
211 opc_ptr = gen_opc_buf;
212 for(;;) {
213 c = *opc_ptr;
214 if (c == INDEX_op_end)
215 return -1;
216 tc_ptr += opc_copy_size[c];
217 if (searched_pc < tc_ptr)
218 break;
219 opc_ptr++;
220 }
221 j = opc_ptr - gen_opc_buf;
222 /* now find start of instruction before */
223 while (gen_opc_instr_start[j] == 0)
224 j--;
225 #if defined(TARGET_I386)
226 {
227 int cc_op;
228 #ifdef DEBUG_DISAS
229 if (loglevel & CPU_LOG_TB_OP) {
230 int i;
231 fprintf(logfile, "RESTORE:\n");
232 for(i=0;i<=j; i++) {
233 if (gen_opc_instr_start[i]) {
234 fprintf(logfile, "0x%04x: " TARGET_FMT_lx "\n", i, gen_opc_pc[i]);
235 }
236 }
237 fprintf(logfile, "spc=0x%08lx j=0x%x eip=" TARGET_FMT_lx " cs_base=%x\n",
238 searched_pc, j, gen_opc_pc[j] - tb->cs_base,
239 (uint32_t)tb->cs_base);
240 }
241 #endif
242 env->eip = gen_opc_pc[j] - tb->cs_base;
243 cc_op = gen_opc_cc_op[j];
244 if (cc_op != CC_OP_DYNAMIC)
245 env->cc_op = cc_op;
246 }
247 #elif defined(TARGET_ARM)
248 env->regs[15] = gen_opc_pc[j];
249 #elif defined(TARGET_SPARC)
250 {
251 target_ulong npc;
252 env->pc = gen_opc_pc[j];
253 npc = gen_opc_npc[j];
254 if (npc == 1) {
255 /* dynamic NPC: already stored */
256 } else if (npc == 2) {
257 target_ulong t2 = (target_ulong)puc;
258 /* jump PC: use T2 and the jump targets of the translation */
259 if (t2)
260 env->npc = gen_opc_jump_pc[0];
261 else
262 env->npc = gen_opc_jump_pc[1];
263 } else {
264 env->npc = npc;
265 }
266 }
267 #elif defined(TARGET_PPC)
268 {
269 int type;
270 /* for PPC, we need to look at the micro operation to get the
271 access type */
272 env->nip = gen_opc_pc[j];
273 switch(c) {
274 #if defined(CONFIG_USER_ONLY)
275 #define CASE3(op)\
276 case INDEX_op_ ## op ## _raw
277 #else
278 #define CASE3(op)\
279 case INDEX_op_ ## op ## _user:\
280 case INDEX_op_ ## op ## _kernel
281 #endif
283 CASE3(stfd):
284 CASE3(stfs):
285 CASE3(lfd):
286 CASE3(lfs):
287 type = ACCESS_FLOAT;
288 break;
289 CASE3(lwarx):
290 type = ACCESS_RES;
291 break;
292 CASE3(stwcx):
293 type = ACCESS_RES;
294 break;
295 CASE3(eciwx):
296 CASE3(ecowx):
297 type = ACCESS_EXT;
298 break;
299 default:
300 type = ACCESS_INT;
301 break;
302 }
303 env->access_type = type;
304 }
305 #elif defined(TARGET_M68K)
306 env->pc = gen_opc_pc[j];
307 #elif defined(TARGET_MIPS)
308 env->PC = gen_opc_pc[j];
309 env->hflags &= ~MIPS_HFLAG_BMASK;
310 env->hflags |= gen_opc_hflags[j];
311 #endif
312 return 0;
313 }