diff options
Diffstat (limited to 'target/i386/translate.c')
| -rw-r--r-- | target/i386/translate.c | 106 |
1 files changed, 19 insertions, 87 deletions
diff --git a/target/i386/translate.c b/target/i386/translate.c index ad4b2735f4..de0c989763 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -8450,6 +8450,10 @@ static int i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu, return max_insns; } +static void i386_tr_tb_start(DisasContextBase *db, CPUState *cpu) +{ +} + static void i386_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu) { DisasContext *dc = container_of(dcbase, DisasContext, base); @@ -8469,7 +8473,7 @@ static bool i386_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu, /* The address covered by the breakpoint must be included in [tb->pc, tb->pc + tb->size) in order to for it to be properly cleared -- thus we increment the PC here so that - the logic setting tb->size below does the right thing. */ + the generic logic setting tb->size later does the right thing. */ dc->base.pc_next += 1; return true; } else { @@ -8533,94 +8537,22 @@ static void i386_tr_disas_log(const DisasContextBase *dcbase, log_target_disas(cpu, dc->base.pc_first, dc->base.tb->size, disas_flags); } -/* generate intermediate code for basic block 'tb'. */ -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) -{ - DisasContext dc1, *dc = &dc1; - int num_insns; - int max_insns; - - /* generate intermediate code */ - dc->base.singlestep_enabled = cs->singlestep_enabled; - dc->base.tb = tb; - dc->base.is_jmp = DISAS_NEXT; - dc->base.pc_first = tb->pc; - dc->base.pc_next = dc->base.pc_first; - - max_insns = tb->cflags & CF_COUNT_MASK; - if (max_insns == 0) { - max_insns = CF_COUNT_MASK; - } - if (max_insns > TCG_MAX_INSNS) { - max_insns = TCG_MAX_INSNS; - } - max_insns = i386_tr_init_disas_context(&dc->base, cs, max_insns); - - num_insns = 0; - gen_tb_start(tb); - for(;;) { - i386_tr_insn_start(&dc->base, cs); - num_insns++; - - if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) { - CPUBreakpoint *bp; - QTAILQ_FOREACH(bp, &cs->breakpoints, entry) { - if (bp->pc == dc->base.pc_next) { - if (i386_tr_breakpoint_check(&dc->base, cs, bp)) { - break; - } - } - } - - if (dc->base.is_jmp == DISAS_NORETURN) { - break; - } - } - - if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { - gen_io_start(); - } - - i386_tr_translate_insn(&dc->base, cs); - /* stop translation if indicated */ - if (dc->base.is_jmp) { - break; - } - /* if single step mode, we generate only one instruction and - generate an exception */ - if (dc->base.singlestep_enabled) { - dc->base.is_jmp = DISAS_TOO_MANY; - break; - } - /* if too long translation, stop generation too */ - if (tcg_op_buf_full() || - num_insns >= max_insns) { - dc->base.is_jmp = DISAS_TOO_MANY; - break; - } - if (singlestep) { - dc->base.is_jmp = DISAS_TOO_MANY; - break; - } - } - i386_tr_tb_stop(&dc->base, cs); - if (tb->cflags & CF_LAST_IO) - gen_io_end(); - gen_tb_end(tb, num_insns); +static const TranslatorOps i386_tr_ops = { + .init_disas_context = i386_tr_init_disas_context, + .tb_start = i386_tr_tb_start, + .insn_start = i386_tr_insn_start, + .breakpoint_check = i386_tr_breakpoint_check, + .translate_insn = i386_tr_translate_insn, + .tb_stop = i386_tr_tb_stop, + .disas_log = i386_tr_disas_log, +}; - tb->size = dc->base.pc_next - dc->base.pc_first; - tb->icount = num_insns; +/* generate intermediate code for basic block 'tb'. */ +void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) +{ + DisasContext dc; -#ifdef DEBUG_DISAS - if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) - && qemu_log_in_addr_range(dc->base.pc_first)) { - qemu_log_lock(); - qemu_log("----------------\n"); - i386_tr_disas_log(&dc->base, cs); - qemu_log("\n"); - qemu_log_unlock(); - } -#endif + translator_loop(&i386_tr_ops, &dc.base, cpu, tb); } void restore_state_to_opc(CPUX86State *env, TranslationBlock *tb, |