diff options
| -rw-r--r-- | target/arm/translate.c | 88 |
1 files changed, 50 insertions, 38 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c index 4db8978a93..a95c183cee 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -11824,32 +11824,12 @@ static bool insn_crosses_page(CPUARMState *env, DisasContext *s) return false; } -/* generate intermediate code for basic block 'tb'. */ -void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) +static int arm_tr_init_disas_context(DisasContextBase *dcbase, + CPUState *cs, int max_insns) { + DisasContext *dc = container_of(dcbase, DisasContext, base); CPUARMState *env = cs->env_ptr; ARMCPU *cpu = arm_env_get_cpu(env); - DisasContext dc1, *dc = &dc1; - target_ulong next_page_start; - int max_insns; - bool end_of_page; - - /* generate intermediate code */ - - /* The A64 decoder has its own top level loop, because it doesn't need - * the A32/T32 complexity to do with conditional execution/IT blocks/etc. - */ - if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) { - gen_intermediate_code_a64(&dc->base, cs, tb); - return; - } - - dc->base.tb = tb; - dc->base.pc_first = tb->pc; - dc->base.pc_next = dc->base.pc_first; - dc->base.is_jmp = DISAS_NEXT; - dc->base.num_insns = 0; - dc->base.singlestep_enabled = cs->singlestep_enabled; dc->pc = dc->base.pc_first; dc->condjmp = 0; @@ -11860,23 +11840,23 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) */ dc->secure_routed_to_el3 = arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3); - dc->thumb = ARM_TBFLAG_THUMB(tb->flags); - dc->sctlr_b = ARM_TBFLAG_SCTLR_B(tb->flags); - dc->be_data = ARM_TBFLAG_BE_DATA(tb->flags) ? MO_BE : MO_LE; - dc->condexec_mask = (ARM_TBFLAG_CONDEXEC(tb->flags) & 0xf) << 1; - dc->condexec_cond = ARM_TBFLAG_CONDEXEC(tb->flags) >> 4; - dc->mmu_idx = core_to_arm_mmu_idx(env, ARM_TBFLAG_MMUIDX(tb->flags)); + dc->thumb = ARM_TBFLAG_THUMB(dc->base.tb->flags); + dc->sctlr_b = ARM_TBFLAG_SCTLR_B(dc->base.tb->flags); + dc->be_data = ARM_TBFLAG_BE_DATA(dc->base.tb->flags) ? MO_BE : MO_LE; + dc->condexec_mask = (ARM_TBFLAG_CONDEXEC(dc->base.tb->flags) & 0xf) << 1; + dc->condexec_cond = ARM_TBFLAG_CONDEXEC(dc->base.tb->flags) >> 4; + dc->mmu_idx = core_to_arm_mmu_idx(env, ARM_TBFLAG_MMUIDX(dc->base.tb->flags)); dc->current_el = arm_mmu_idx_to_el(dc->mmu_idx); #if !defined(CONFIG_USER_ONLY) dc->user = (dc->current_el == 0); #endif - dc->ns = ARM_TBFLAG_NS(tb->flags); - dc->fp_excp_el = ARM_TBFLAG_FPEXC_EL(tb->flags); - dc->vfp_enabled = ARM_TBFLAG_VFPEN(tb->flags); - dc->vec_len = ARM_TBFLAG_VECLEN(tb->flags); - dc->vec_stride = ARM_TBFLAG_VECSTRIDE(tb->flags); - dc->c15_cpar = ARM_TBFLAG_XSCALE_CPAR(tb->flags); - dc->v7m_handler_mode = ARM_TBFLAG_HANDLER(tb->flags); + dc->ns = ARM_TBFLAG_NS(dc->base.tb->flags); + dc->fp_excp_el = ARM_TBFLAG_FPEXC_EL(dc->base.tb->flags); + dc->vfp_enabled = ARM_TBFLAG_VFPEN(dc->base.tb->flags); + dc->vec_len = ARM_TBFLAG_VECLEN(dc->base.tb->flags); + dc->vec_stride = ARM_TBFLAG_VECSTRIDE(dc->base.tb->flags); + dc->c15_cpar = ARM_TBFLAG_XSCALE_CPAR(dc->base.tb->flags); + dc->v7m_handler_mode = ARM_TBFLAG_HANDLER(dc->base.tb->flags); dc->cp_regs = cpu->cp_regs; dc->features = env->features; @@ -11895,11 +11875,12 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) * emit code to generate a software step exception * end the TB */ - dc->ss_active = ARM_TBFLAG_SS_ACTIVE(tb->flags); - dc->pstate_ss = ARM_TBFLAG_PSTATE_SS(tb->flags); + dc->ss_active = ARM_TBFLAG_SS_ACTIVE(dc->base.tb->flags); + dc->pstate_ss = ARM_TBFLAG_PSTATE_SS(dc->base.tb->flags); dc->is_ldex = false; dc->ss_same_el = false; /* Can't be true since EL_d must be AArch64 */ + cpu_F0s = tcg_temp_new_i32(); cpu_F1s = tcg_temp_new_i32(); cpu_F0d = tcg_temp_new_i64(); @@ -11908,6 +11889,36 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) cpu_V1 = cpu_F1d; /* FIXME: cpu_M0 can probably be the same as cpu_V0. */ cpu_M0 = tcg_temp_new_i64(); + + return max_insns; +} + +/* generate intermediate code for basic block 'tb'. */ +void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) +{ + CPUARMState *env = cs->env_ptr; + DisasContext dc1, *dc = &dc1; + target_ulong next_page_start; + int max_insns; + bool end_of_page; + + /* generate intermediate code */ + + /* The A64 decoder has its own top level loop, because it doesn't need + * the A32/T32 complexity to do with conditional execution/IT blocks/etc. + */ + if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) { + gen_intermediate_code_a64(&dc->base, cs, tb); + return; + } + + dc->base.tb = tb; + dc->base.pc_first = dc->base.tb->pc; + dc->base.pc_next = dc->base.pc_first; + dc->base.is_jmp = DISAS_NEXT; + dc->base.num_insns = 0; + dc->base.singlestep_enabled = cs->singlestep_enabled; + next_page_start = (dc->base.pc_first & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) { @@ -11916,6 +11927,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) if (max_insns > TCG_MAX_INSNS) { max_insns = TCG_MAX_INSNS; } + max_insns = arm_tr_init_disas_context(&dc->base, cs, max_insns); gen_tb_start(tb); |