/*
* Host code generation
- *
+ *
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
#include "exec-all.h"
#include "disas.h"
+extern int dyngen_code(uint8_t *gen_code_buf,
+ uint16_t *label_offsets, uint16_t *jmp_offsets,
+ const uint16_t *opc_buf, const uint32_t *opparam_buf, const long *gen_labels);
+
enum {
#define DEF(s, n, copy_size) INDEX_op_ ## s,
#include "opc.h"
NB_OPS,
};
-#include "dyngen.h"
-#include "op.h"
-
uint16_t gen_opc_buf[OPC_BUF_SIZE];
uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
-uint32_t gen_opc_pc[OPC_BUF_SIZE];
+long gen_labels[OPC_BUF_SIZE];
+int nb_gen_labels;
+
+target_ulong gen_opc_pc[OPC_BUF_SIZE];
uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
#if defined(TARGET_I386)
uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
+#elif defined(TARGET_SPARC)
+target_ulong gen_opc_npc[OPC_BUF_SIZE];
+target_ulong gen_opc_jump_pc[2];
+#elif defined(TARGET_MIPS)
+uint32_t gen_opc_hflags[OPC_BUF_SIZE];
#endif
+int code_copy_enabled = 1;
+
#ifdef DEBUG_DISAS
static const char *op_str[] = {
#define DEF(s, n, copy_size) #s,
#undef DEF
};
+static const unsigned short opc_copy_size[] = {
+#define DEF(s, n, copy_size) copy_size,
+#include "opc.h"
+#undef DEF
+};
+
void dump_ops(const uint16_t *opc_buf, const uint32_t *opparam_buf)
{
const uint16_t *opc_ptr;
for(;;) {
c = *opc_ptr++;
n = op_nb_args[c];
- fprintf(logfile, "0x%04x: %s",
+ fprintf(logfile, "0x%04x: %s",
(int)(opc_ptr - opc_buf - 1), op_str[c]);
for(i = 0; i < n; i++) {
fprintf(logfile, " 0x%x", opparam_ptr[i]);
#endif
+/* compute label info */
+static void dyngen_labels(long *gen_labels, int nb_gen_labels,
+ uint8_t *gen_code_buf, const uint16_t *opc_buf)
+{
+ uint8_t *gen_code_ptr;
+ int c, i;
+ unsigned long gen_code_addr[OPC_BUF_SIZE];
+
+ if (nb_gen_labels == 0)
+ return;
+ /* compute the address of each op code */
+
+ gen_code_ptr = gen_code_buf;
+ i = 0;
+ for(;;) {
+ c = opc_buf[i];
+ gen_code_addr[i] =(unsigned long)gen_code_ptr;
+ if (c == INDEX_op_end)
+ break;
+ gen_code_ptr += opc_copy_size[c];
+ i++;
+ }
+
+ /* compute the address of each label */
+ for(i = 0; i < nb_gen_labels; i++) {
+ gen_labels[i] = gen_code_addr[gen_labels[i]];
+ }
+}
+
/* return non zero if the very first instruction is invalid so that
- the virtual CPU can trigger an exception.
+ the virtual CPU can trigger an exception.
'*gen_code_size_ptr' contains the size of the generated code (host
code).
uint8_t *gen_code_buf;
int gen_code_size;
- if (gen_intermediate_code(env, tb) < 0)
- return -1;
+#ifdef USE_CODE_COPY
+ if (code_copy_enabled &&
+ cpu_gen_code_copy(env, tb, max_code_size, &gen_code_size) == 0) {
+ /* nothing more to do */
+ } else
+#endif
+ {
+ if (gen_intermediate_code(env, tb) < 0)
+ return -1;
- /* generate machine code */
- tb->tb_next_offset[0] = 0xffff;
- tb->tb_next_offset[1] = 0xffff;
- gen_code_buf = tb->tc_ptr;
+ /* generate machine code */
+ tb->tb_next_offset[0] = 0xffff;
+ tb->tb_next_offset[1] = 0xffff;
+ gen_code_buf = tb->tc_ptr;
#ifdef USE_DIRECT_JUMP
- /* the following two entries are optional (only used for string ops) */
- tb->tb_jmp_offset[2] = 0xffff;
- tb->tb_jmp_offset[3] = 0xffff;
+ /* the following two entries are optional (only used for string ops) */
+ tb->tb_jmp_offset[2] = 0xffff;
+ tb->tb_jmp_offset[3] = 0xffff;
#endif
- gen_code_size = dyngen_code(gen_code_buf, tb->tb_next_offset,
+ dyngen_labels(gen_labels, nb_gen_labels, gen_code_buf, gen_opc_buf);
+
+ gen_code_size = dyngen_code(gen_code_buf, tb->tb_next_offset,
#ifdef USE_DIRECT_JUMP
- tb->tb_jmp_offset,
+ tb->tb_jmp_offset,
#else
- NULL,
+ NULL,
#endif
- gen_opc_buf, gen_opparam_buf);
+ gen_opc_buf, gen_opparam_buf, gen_labels);
+ }
*gen_code_size_ptr = gen_code_size;
#ifdef DEBUG_DISAS
- if (loglevel) {
+ if (loglevel & CPU_LOG_TB_OUT_ASM) {
fprintf(logfile, "OUT: [size=%d]\n", *gen_code_size_ptr);
- disas(logfile, gen_code_buf, *gen_code_size_ptr, 1, 0);
+ disas(logfile, tb->tc_ptr, *gen_code_size_ptr);
fprintf(logfile, "\n");
fflush(logfile);
}
return 0;
}
-static const unsigned short opc_copy_size[] = {
-#define DEF(s, n, copy_size) copy_size,
-#include "opc.h"
-#undef DEF
-};
-
-/* The cpu state corresponding to 'searched_pc' is restored.
+/* The cpu state corresponding to 'searched_pc' is restored.
*/
-int cpu_restore_state(TranslationBlock *tb,
- CPUState *env, unsigned long searched_pc)
+int cpu_restore_state(TranslationBlock *tb,
+ CPUState *env, unsigned long searched_pc,
+ void *puc)
{
int j, c;
unsigned long tc_ptr;
uint16_t *opc_ptr;
+#ifdef USE_CODE_COPY
+ if (tb->cflags & CF_CODE_COPY) {
+ return cpu_restore_state_copy(tb, env, searched_pc, puc);
+ }
+#endif
if (gen_intermediate_code_pc(env, tb) < 0)
return -1;
-
+
/* find opc index corresponding to search_pc */
tc_ptr = (unsigned long)tb->tc_ptr;
if (searched_pc < tc_ptr)
{
int cc_op;
#ifdef DEBUG_DISAS
- if (loglevel) {
+ if (loglevel & CPU_LOG_TB_OP) {
int i;
fprintf(logfile, "RESTORE:\n");
for(i=0;i<=j; i++) {
if (gen_opc_instr_start[i]) {
- fprintf(logfile, "0x%04x: 0x%08x\n", i, gen_opc_pc[i]);
+ fprintf(logfile, "0x%04x: " TARGET_FMT_lx "\n", i, gen_opc_pc[i]);
}
}
- fprintf(logfile, "spc=0x%08lx j=0x%x eip=0x%lx cs_base=%lx\n",
- searched_pc, j, gen_opc_pc[j] - tb->cs_base, tb->cs_base);
+ fprintf(logfile, "spc=0x%08lx j=0x%x eip=" TARGET_FMT_lx " cs_base=%x\n",
+ searched_pc, j, gen_opc_pc[j] - tb->cs_base,
+ (uint32_t)tb->cs_base);
}
#endif
env->eip = gen_opc_pc[j] - tb->cs_base;
#elif defined(TARGET_ARM)
env->regs[15] = gen_opc_pc[j];
#elif defined(TARGET_SPARC)
- env->pc = gen_opc_pc[j];
+ {
+ target_ulong npc;
+ env->pc = gen_opc_pc[j];
+ npc = gen_opc_npc[j];
+ if (npc == 1) {
+ /* dynamic NPC: already stored */
+ } else if (npc == 2) {
+ target_ulong t2 = (target_ulong)puc;
+ /* jump PC: use T2 and the jump targets of the translation */
+ if (t2)
+ env->npc = gen_opc_jump_pc[0];
+ else
+ env->npc = gen_opc_jump_pc[1];
+ } else {
+ env->npc = npc;
+ }
+ }
#elif defined(TARGET_PPC)
{
int type;
case INDEX_op_ ## op ## _raw
#else
#define CASE3(op)\
- case INDEX_op_ ## op ## _raw:\
case INDEX_op_ ## op ## _user:\
case INDEX_op_ ## op ## _kernel
#endif
-
+
CASE3(stfd):
CASE3(stfs):
CASE3(lfd):
CASE3(lfs):
type = ACCESS_FLOAT;
break;
+ CASE3(lwarx):
+ type = ACCESS_RES;
+ break;
CASE3(stwcx):
type = ACCESS_RES;
break;
}
env->access_type = type;
}
+#elif defined(TARGET_M68K)
+ env->pc = gen_opc_pc[j];
+#elif defined(TARGET_MIPS)
+ env->PC[env->current_tc] = gen_opc_pc[j];
+ env->hflags &= ~MIPS_HFLAG_BMASK;
+ env->hflags |= gen_opc_hflags[j];
+#elif defined(TARGET_ALPHA)
+ env->pc = gen_opc_pc[j];
#endif
return 0;
}
projects / qemu.git / blobdiff