From dcba3a8d443842f7a30a2c52d50a6b50b6982b35 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Llu=C3=ADs=20Vilanova?= Date: Fri, 14 Jul 2017 12:01:59 +0300 Subject: [PATCH] target/arm: [tcg] Port to DisasContextBase MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Incrementally paves the way towards using the generic instruction translation loop. Signed-off-by: Lluís Vilanova Reviewed-by: Richard Henderson Reviewed-by: Alex Benneé Message-Id: <150002291931.22386.11441154993010495674.stgit@frigg.lan> Signed-off-by: Richard Henderson --- target/arm/translate-a64.c | 113 ++++++++++++++++++----------------- target/arm/translate.c | 117 ++++++++++++++++++------------------- target/arm/translate.h | 11 ++-- 3 files changed, 120 insertions(+), 121 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 881d3c0cbb..f5c678ef25 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -304,7 +304,7 @@ static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) { gen_a64_set_pc_im(s->pc - offset); gen_exception_internal(excp); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static void gen_exception_insn(DisasContext *s, int offset, int excp, @@ -312,7 +312,7 @@ static void gen_exception_insn(DisasContext *s, int offset, int excp, { gen_a64_set_pc_im(s->pc - offset); gen_exception(excp, syndrome, target_el); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static void gen_ss_advance(DisasContext *s) @@ -340,7 +340,7 @@ static void gen_step_complete_exception(DisasContext *s) gen_ss_advance(s); gen_exception(EXCP_UDEF, syn_swstep(s->ss_same_el, 1, s->is_ldex), default_exception_el(s)); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static inline bool use_goto_tb(DisasContext *s, int n, uint64_t dest) @@ -348,13 +348,13 @@ static inline bool use_goto_tb(DisasContext *s, int n, uint64_t dest) /* No direct tb linking with singlestep (either QEMU's or the ARM * debug architecture kind) or deterministic io */ - if (s->singlestep_enabled || s->ss_active || (s->tb->cflags & CF_LAST_IO)) { + if (s->base.singlestep_enabled || s->ss_active || (s->base.tb->cflags & CF_LAST_IO)) { return false; } #ifndef CONFIG_USER_ONLY /* Only link tbs from inside the same guest page */ - if ((s->tb->pc & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { + if ((s->base.tb->pc & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { return false; } #endif @@ -366,21 +366,21 @@ static inline void gen_goto_tb(DisasContext *s, int n, uint64_t dest) { TranslationBlock *tb; - tb = s->tb; + tb = s->base.tb; if (use_goto_tb(s, n, dest)) { tcg_gen_goto_tb(n); gen_a64_set_pc_im(dest); tcg_gen_exit_tb((intptr_t)tb + n); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } else { gen_a64_set_pc_im(dest); if (s->ss_active) { gen_step_complete_exception(s); - } else if (s->singlestep_enabled) { + } else if (s->base.singlestep_enabled) { gen_exception_internal(EXCP_DEBUG); } else { tcg_gen_lookup_and_goto_ptr(cpu_pc); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } } } @@ -1331,16 +1331,16 @@ static void handle_hint(DisasContext *s, uint32_t insn, case 0: /* NOP */ return; case 3: /* WFI */ - s->is_jmp = DISAS_WFI; + s->base.is_jmp = DISAS_WFI; return; case 1: /* YIELD */ if (!parallel_cpus) { - s->is_jmp = DISAS_YIELD; + s->base.is_jmp = DISAS_YIELD; } return; case 2: /* WFE */ if (!parallel_cpus) { - s->is_jmp = DISAS_WFE; + s->base.is_jmp = DISAS_WFE; } return; case 4: /* SEV */ @@ -1424,7 +1424,7 @@ static void handle_msr_i(DisasContext *s, uint32_t insn, tcg_temp_free_i32(tcg_op); /* For DAIFClear, exit the cpu loop to re-evaluate pending IRQs. */ gen_a64_set_pc_im(s->pc); - s->is_jmp = (op == 0x1f ? DISAS_EXIT : DISAS_JUMP); + s->base.is_jmp = (op == 0x1f ? DISAS_EXIT : DISAS_JUMP); break; } default: @@ -1559,7 +1559,7 @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread, break; } - if ((s->tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { + if ((s->base.tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { gen_io_start(); } @@ -1590,16 +1590,16 @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread, } } - if ((s->tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { + if ((s->base.tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { /* I/O operations must end the TB here (whether read or write) */ gen_io_end(); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } else if (!isread && !(ri->type & ARM_CP_SUPPRESS_TB_END)) { /* We default to ending the TB on a coprocessor register write, * but allow this to be suppressed by the register definition * (usually only necessary to work around guest bugs). */ - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } } @@ -1789,7 +1789,7 @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn) } gen_helper_exception_return(cpu_env); /* Must exit loop to check un-masked IRQs */ - s->is_jmp = DISAS_EXIT; + s->base.is_jmp = DISAS_EXIT; return; case 5: /* DRPS */ if (rn != 0x1f) { @@ -1803,7 +1803,7 @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn) return; } - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; } /* C3.2 Branches, exception generating and system instructions */ @@ -11200,23 +11200,23 @@ static void disas_a64_insn(CPUARMState *env, DisasContext *s) free_tmp_a64(s); } -void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) +void gen_intermediate_code_a64(DisasContextBase *dcbase, CPUState *cs, + TranslationBlock *tb) { CPUARMState *env = cs->env_ptr; ARMCPU *cpu = arm_env_get_cpu(env); - DisasContext dc1, *dc = &dc1; - target_ulong pc_start; + DisasContext *dc = container_of(dcbase, DisasContext, base); target_ulong next_page_start; - int num_insns; int max_insns; - pc_start = tb->pc; + 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; - dc->tb = tb; - - dc->is_jmp = DISAS_NEXT; - dc->pc = pc_start; - dc->singlestep_enabled = cs->singlestep_enabled; + dc->pc = dc->base.pc_first; dc->condjmp = 0; dc->aarch64 = 1; @@ -11227,17 +11227,17 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) !arm_el_is_aa64(env, 3); dc->thumb = 0; dc->sctlr_b = 0; - dc->be_data = ARM_TBFLAG_BE_DATA(tb->flags) ? MO_BE : MO_LE; + dc->be_data = ARM_TBFLAG_BE_DATA(dc->base.tb->flags) ? MO_BE : MO_LE; dc->condexec_mask = 0; dc->condexec_cond = 0; - dc->mmu_idx = core_to_arm_mmu_idx(env, ARM_TBFLAG_MMUIDX(tb->flags)); - dc->tbi0 = ARM_TBFLAG_TBI0(tb->flags); - dc->tbi1 = ARM_TBFLAG_TBI1(tb->flags); + dc->mmu_idx = core_to_arm_mmu_idx(env, ARM_TBFLAG_MMUIDX(dc->base.tb->flags)); + dc->tbi0 = ARM_TBFLAG_TBI0(dc->base.tb->flags); + dc->tbi1 = ARM_TBFLAG_TBI1(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->fp_excp_el = ARM_TBFLAG_FPEXC_EL(tb->flags); + dc->fp_excp_el = ARM_TBFLAG_FPEXC_EL(dc->base.tb->flags); dc->vec_len = 0; dc->vec_stride = 0; dc->cp_regs = cpu->cp_regs; @@ -11258,16 +11258,15 @@ void gen_intermediate_code_a64(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 = (arm_debug_target_el(env) == dc->current_el); init_tmp_a64_array(dc); - next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; - num_insns = 0; - max_insns = tb->cflags & CF_COUNT_MASK; + next_page_start = (dc->base.pc_first & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + max_insns = dc->base.tb->cflags & CF_COUNT_MASK; if (max_insns == 0) { max_insns = CF_COUNT_MASK; } @@ -11280,9 +11279,9 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) tcg_clear_temp_count(); do { + dc->base.num_insns++; dc->insn_start_idx = tcg_op_buf_count(); tcg_gen_insn_start(dc->pc, 0, 0); - num_insns++; if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) { CPUBreakpoint *bp; @@ -11292,14 +11291,14 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) gen_a64_set_pc_im(dc->pc); gen_helper_check_breakpoints(cpu_env); /* End the TB early; it likely won't be executed */ - dc->is_jmp = DISAS_UPDATE; + dc->base.is_jmp = DISAS_UPDATE; } else { gen_exception_internal_insn(dc, 0, EXCP_DEBUG); /* The address covered by the breakpoint must be - included in [tb->pc, tb->pc + tb->size) in order + included in [dc->base.tb->pc, dc->base.tb->pc + dc->base.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. */ + dc->base.tb->size below does the right thing. */ dc->pc += 4; goto done_generating; } @@ -11308,7 +11307,7 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) } } - if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { + if (dc->base.num_insns == max_insns && (dc->base.tb->cflags & CF_LAST_IO)) { gen_io_start(); } @@ -11323,10 +11322,10 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) * "did not step an insn" case, and so the syndrome ISV and EX * bits should be zero. */ - assert(num_insns == 1); + assert(dc->base.num_insns == 1); gen_exception(EXCP_UDEF, syn_swstep(dc->ss_same_el, 0, 0), default_exception_el(dc)); - dc->is_jmp = DISAS_NORETURN; + dc->base.is_jmp = DISAS_NORETURN; break; } @@ -11342,14 +11341,14 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) * Also stop translation when a page boundary is reached. This * ensures prefetch aborts occur at the right place. */ - } while (!dc->is_jmp && !tcg_op_buf_full() && + } while (!dc->base.is_jmp && !tcg_op_buf_full() && !cs->singlestep_enabled && !singlestep && !dc->ss_active && dc->pc < next_page_start && - num_insns < max_insns); + dc->base.num_insns < max_insns); - if (tb->cflags & CF_LAST_IO) { + if (dc->base.tb->cflags & CF_LAST_IO) { gen_io_end(); } @@ -11359,7 +11358,7 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) * gen_goto_tb() has already handled emitting the debug exception * (and thus a tb-jump is not possible when singlestepping). */ - switch (dc->is_jmp) { + switch (dc->base.is_jmp) { default: gen_a64_set_pc_im(dc->pc); /* fall through */ @@ -11374,7 +11373,7 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) break; } } else { - switch (dc->is_jmp) { + switch (dc->base.is_jmp) { case DISAS_NEXT: gen_goto_tb(dc, 1, dc->pc); break; @@ -11414,20 +11413,20 @@ void gen_intermediate_code_a64(CPUState *cs, TranslationBlock *tb) } done_generating: - gen_tb_end(tb, num_insns); + gen_tb_end(tb, dc->base.num_insns); #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && - qemu_log_in_addr_range(pc_start)) { + qemu_log_in_addr_range(dc->base.pc_first)) { qemu_log_lock(); qemu_log("----------------\n"); - qemu_log("IN: %s\n", lookup_symbol(pc_start)); - log_target_disas(cs, pc_start, dc->pc - pc_start, + qemu_log("IN: %s\n", lookup_symbol(dc->base.pc_first)); + log_target_disas(cs, dc->base.pc_first, dc->pc - dc->base.pc_first, 4 | (bswap_code(dc->sctlr_b) ? 2 : 0)); qemu_log("\n"); qemu_log_unlock(); } #endif - tb->size = dc->pc - pc_start; - tb->icount = num_insns; + dc->base.tb->size = dc->pc - dc->base.pc_first; + dc->base.tb->icount = dc->base.num_insns; } diff --git a/target/arm/translate.c b/target/arm/translate.c index 746193eebc..4db8978a93 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -224,7 +224,7 @@ static void store_reg(DisasContext *s, int reg, TCGv_i32 var) * We choose to ignore [1:0] in ARM mode for all architecture versions. */ tcg_gen_andi_i32(var, var, s->thumb ? ~1 : ~3); - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; } tcg_gen_mov_i32(cpu_R[reg], var); tcg_temp_free_i32(var); @@ -297,7 +297,7 @@ static void gen_step_complete_exception(DisasContext *s) gen_ss_advance(s); gen_exception(EXCP_UDEF, syn_swstep(s->ss_same_el, 1, s->is_ldex), default_exception_el(s)); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static void gen_singlestep_exception(DisasContext *s) @@ -321,7 +321,7 @@ static inline bool is_singlestepping(DisasContext *s) * misnamed as it only means "one instruction per TB" and doesn't * affect the code we generate. */ - return s->singlestep_enabled || s->ss_active; + return s->base.singlestep_enabled || s->ss_active; } static void gen_smul_dual(TCGv_i32 a, TCGv_i32 b) @@ -930,7 +930,7 @@ static inline void gen_bx_im(DisasContext *s, uint32_t addr) { TCGv_i32 tmp; - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; if (s->thumb != (addr & 1)) { tmp = tcg_temp_new_i32(); tcg_gen_movi_i32(tmp, addr & 1); @@ -943,7 +943,7 @@ static inline void gen_bx_im(DisasContext *s, uint32_t addr) /* Set PC and Thumb state from var. var is marked as dead. */ static inline void gen_bx(DisasContext *s, TCGv_i32 var) { - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; tcg_gen_andi_i32(cpu_R[15], var, ~1); tcg_gen_andi_i32(var, var, 1); store_cpu_field(var, thumb); @@ -957,11 +957,11 @@ static inline void gen_bx(DisasContext *s, TCGv_i32 var) static inline void gen_bx_excret(DisasContext *s, TCGv_i32 var) { /* Generate the same code here as for a simple bx, but flag via - * s->is_jmp that we need to do the rest of the work later. + * s->base.is_jmp that we need to do the rest of the work later. */ gen_bx(s, var); if (s->v7m_handler_mode && arm_dc_feature(s, ARM_FEATURE_M)) { - s->is_jmp = DISAS_BX_EXCRET; + s->base.is_jmp = DISAS_BX_EXCRET; } } @@ -1161,7 +1161,7 @@ static inline void gen_hvc(DisasContext *s, int imm16) */ s->svc_imm = imm16; gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_HVC; + s->base.is_jmp = DISAS_HVC; } static inline void gen_smc(DisasContext *s) @@ -1176,7 +1176,7 @@ static inline void gen_smc(DisasContext *s) gen_helper_pre_smc(cpu_env, tmp); tcg_temp_free_i32(tmp); gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_SMC; + s->base.is_jmp = DISAS_SMC; } static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) @@ -1184,7 +1184,7 @@ static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) gen_set_condexec(s); gen_set_pc_im(s, s->pc - offset); gen_exception_internal(excp); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static void gen_exception_insn(DisasContext *s, int offset, int excp, @@ -1193,14 +1193,14 @@ static void gen_exception_insn(DisasContext *s, int offset, int excp, gen_set_condexec(s); gen_set_pc_im(s, s->pc - offset); gen_exception(excp, syn, target_el); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } /* Force a TB lookup after an instruction that changes the CPU state. */ static inline void gen_lookup_tb(DisasContext *s) { tcg_gen_movi_i32(cpu_R[15], s->pc & ~1); - s->is_jmp = DISAS_EXIT; + s->base.is_jmp = DISAS_EXIT; } static inline void gen_hlt(DisasContext *s, int imm) @@ -4145,7 +4145,7 @@ static int disas_vfp_insn(DisasContext *s, uint32_t insn) static inline bool use_goto_tb(DisasContext *s, target_ulong dest) { #ifndef CONFIG_USER_ONLY - return (s->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) || + return (s->base.tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) || ((s->pc - 1) & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); #else return true; @@ -4169,12 +4169,12 @@ static void gen_goto_tb(DisasContext *s, int n, target_ulong dest) if (use_goto_tb(s, dest)) { tcg_gen_goto_tb(n); gen_set_pc_im(s, dest); - tcg_gen_exit_tb((uintptr_t)s->tb + n); + tcg_gen_exit_tb((uintptr_t)s->base.tb + n); } else { gen_set_pc_im(s, dest); gen_goto_ptr(); } - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static inline void gen_jmp (DisasContext *s, uint32_t dest) @@ -4436,7 +4436,7 @@ static void gen_msr_banked(DisasContext *s, int r, int sysm, int rn) tcg_temp_free_i32(tcg_tgtmode); tcg_temp_free_i32(tcg_regno); tcg_temp_free_i32(tcg_reg); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } static void gen_mrs_banked(DisasContext *s, int r, int sysm, int rn) @@ -4458,7 +4458,7 @@ static void gen_mrs_banked(DisasContext *s, int r, int sysm, int rn) tcg_temp_free_i32(tcg_tgtmode); tcg_temp_free_i32(tcg_regno); store_reg(s, rn, tcg_reg); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } /* Store value to PC as for an exception return (ie don't @@ -4482,7 +4482,7 @@ static void gen_rfe(DisasContext *s, TCGv_i32 pc, TCGv_i32 cpsr) gen_helper_cpsr_write_eret(cpu_env, cpsr); tcg_temp_free_i32(cpsr); /* Must exit loop to check un-masked IRQs */ - s->is_jmp = DISAS_EXIT; + s->base.is_jmp = DISAS_EXIT; } /* Generate an old-style exception return. Marks pc as dead. */ @@ -4505,17 +4505,17 @@ static void gen_nop_hint(DisasContext *s, int val) case 1: /* yield */ if (!parallel_cpus) { gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_YIELD; + s->base.is_jmp = DISAS_YIELD; } break; case 3: /* wfi */ gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_WFI; + s->base.is_jmp = DISAS_WFI; break; case 2: /* wfe */ if (!parallel_cpus) { gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_WFE; + s->base.is_jmp = DISAS_WFE; } break; case 4: /* sev */ @@ -7654,13 +7654,13 @@ static int disas_coproc_insn(DisasContext *s, uint32_t insn) return 1; } gen_set_pc_im(s, s->pc); - s->is_jmp = DISAS_WFI; + s->base.is_jmp = DISAS_WFI; return 0; default: break; } - if ((s->tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { + if ((s->base.tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { gen_io_start(); } @@ -7751,7 +7751,7 @@ static int disas_coproc_insn(DisasContext *s, uint32_t insn) } } - if ((s->tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { + if ((s->base.tb->cflags & CF_USE_ICOUNT) && (ri->type & ARM_CP_IO)) { /* I/O operations must end the TB here (whether read or write) */ gen_io_end(); gen_lookup_tb(s); @@ -8065,7 +8065,7 @@ static void gen_srs(DisasContext *s, tcg_temp_free_i32(tmp); } tcg_temp_free_i32(addr); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } static void disas_arm_insn(DisasContext *s, unsigned int insn) @@ -8153,7 +8153,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) /* setend */ if (((insn >> 9) & 1) != !!(s->be_data == MO_BE)) { gen_helper_setend(cpu_env); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } return; } else if ((insn & 0x0fffff00) == 0x057ff000) { @@ -9527,7 +9527,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) gen_helper_cpsr_write_eret(cpu_env, tmp); tcg_temp_free_i32(tmp); /* Must exit loop to check un-masked IRQs */ - s->is_jmp = DISAS_EXIT; + s->base.is_jmp = DISAS_EXIT; } } break; @@ -9565,7 +9565,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) /* swi */ gen_set_pc_im(s, s->pc); s->svc_imm = extract32(insn, 0, 24); - s->is_jmp = DISAS_SWI; + s->base.is_jmp = DISAS_SWI; break; default: illegal_op: @@ -11657,7 +11657,7 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) ARCH(6); if (((insn >> 3) & 1) != !!(s->be_data == MO_BE)) { gen_helper_setend(cpu_env); - s->is_jmp = DISAS_UPDATE; + s->base.is_jmp = DISAS_UPDATE; } break; case 3: @@ -11751,7 +11751,7 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) /* swi */ gen_set_pc_im(s, s->pc); s->svc_imm = extract32(insn, 0, 8); - s->is_jmp = DISAS_SWI; + s->base.is_jmp = DISAS_SWI; break; } /* generate a conditional jump to next instruction */ @@ -11830,9 +11830,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) CPUARMState *env = cs->env_ptr; ARMCPU *cpu = arm_env_get_cpu(env); DisasContext dc1, *dc = &dc1; - target_ulong pc_start; target_ulong next_page_start; - int num_insns; int max_insns; bool end_of_page; @@ -11842,17 +11840,18 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) * the A32/T32 complexity to do with conditional execution/IT blocks/etc. */ if (ARM_TBFLAG_AARCH64_STATE(tb->flags)) { - gen_intermediate_code_a64(cs, tb); + gen_intermediate_code_a64(&dc->base, cs, tb); return; } - pc_start = tb->pc; + 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->tb = tb; - - dc->is_jmp = DISAS_NEXT; - dc->pc = pc_start; - dc->singlestep_enabled = cs->singlestep_enabled; + dc->pc = dc->base.pc_first; dc->condjmp = 0; dc->aarch64 = 0; @@ -11909,8 +11908,7 @@ 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(); - next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; - num_insns = 0; + next_page_start = (dc->base.pc_first & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) { max_insns = CF_COUNT_MASK; @@ -11962,11 +11960,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) store_cpu_field(tmp, condexec_bits); } do { + dc->base.num_insns++; dc->insn_start_idx = tcg_op_buf_count(); tcg_gen_insn_start(dc->pc, (dc->condexec_cond << 4) | (dc->condexec_mask >> 1), 0); - num_insns++; if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) { CPUBreakpoint *bp; @@ -11977,7 +11975,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) gen_set_pc_im(dc, dc->pc); gen_helper_check_breakpoints(cpu_env); /* End the TB early; it's likely not going to be executed */ - dc->is_jmp = DISAS_UPDATE; + dc->base.is_jmp = DISAS_UPDATE; } else { gen_exception_internal_insn(dc, 0, EXCP_DEBUG); /* The address covered by the breakpoint must be @@ -11995,7 +11993,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) } } - if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { + if (dc->base.num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { gen_io_start(); } @@ -12005,7 +12003,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) /* We always get here via a jump, so know we are not in a conditional execution block. */ gen_exception_internal(EXCP_KERNEL_TRAP); - dc->is_jmp = DISAS_NORETURN; + dc->base.is_jmp = DISAS_NORETURN; break; } #endif @@ -12021,10 +12019,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) * "did not step an insn" case, and so the syndrome ISV and EX * bits should be zero. */ - assert(num_insns == 1); + assert(dc->base.num_insns == 1); gen_exception(EXCP_UDEF, syn_swstep(dc->ss_same_el, 0, 0), default_exception_el(dc)); - goto done_generating; + dc->base.is_jmp = DISAS_NORETURN; + break; } if (dc->thumb) { @@ -12043,7 +12042,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) disas_arm_insn(dc, insn); } - if (dc->condjmp && !dc->is_jmp) { + if (dc->condjmp && !dc->base.is_jmp) { gen_set_label(dc->condlabel); dc->condjmp = 0; } @@ -12070,11 +12069,11 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) end_of_page = (dc->pc >= next_page_start) || ((dc->pc >= next_page_start - 3) && insn_crosses_page(env, dc)); - } while (!dc->is_jmp && !tcg_op_buf_full() && + } while (!dc->base.is_jmp && !tcg_op_buf_full() && !is_singlestepping(dc) && !singlestep && !end_of_page && - num_insns < max_insns); + dc->base.num_insns < max_insns); if (tb->cflags & CF_LAST_IO) { if (dc->condjmp) { @@ -12089,7 +12088,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) instruction was a conditional branch or trap, and the PC has already been written. */ gen_set_condexec(dc); - if (dc->is_jmp == DISAS_BX_EXCRET) { + if (dc->base.is_jmp == DISAS_BX_EXCRET) { /* Exception return branches need some special case code at the * end of the TB, which is complex enough that it has to * handle the single-step vs not and the condition-failed @@ -12098,7 +12097,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) gen_bx_excret_final_code(dc); } else if (unlikely(is_singlestepping(dc))) { /* Unconditional and "condition passed" instruction codepath. */ - switch (dc->is_jmp) { + switch (dc->base.is_jmp) { case DISAS_SWI: gen_ss_advance(dc); gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb), @@ -12132,7 +12131,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) - Hardware watchpoints. Hardware breakpoints have already been handled and skip this code. */ - switch(dc->is_jmp) { + switch(dc->base.is_jmp) { case DISAS_NEXT: gen_goto_tb(dc, 1, dc->pc); break; @@ -12188,22 +12187,22 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) } done_generating: - gen_tb_end(tb, num_insns); + gen_tb_end(tb, dc->base.num_insns); #ifdef DEBUG_DISAS if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && - qemu_log_in_addr_range(pc_start)) { + qemu_log_in_addr_range(dc->base.pc_first)) { qemu_log_lock(); qemu_log("----------------\n"); - qemu_log("IN: %s\n", lookup_symbol(pc_start)); - log_target_disas(cs, pc_start, dc->pc - pc_start, + qemu_log("IN: %s\n", lookup_symbol(dc->base.pc_first)); + log_target_disas(cs, dc->base.pc_first, dc->pc - dc->base.pc_first, dc->thumb | (dc->sctlr_b << 1)); qemu_log("\n"); qemu_log_unlock(); } #endif - tb->size = dc->pc - pc_start; - tb->icount = num_insns; + tb->size = dc->pc - dc->base.pc_first; + tb->icount = dc->base.num_insns; } static const char *cpu_mode_names[16] = { diff --git a/target/arm/translate.h b/target/arm/translate.h index 1eb432dc2c..a804ff65ac 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -6,9 +6,10 @@ /* internal defines */ typedef struct DisasContext { + DisasContextBase base; + target_ulong pc; uint32_t insn; - int is_jmp; /* Nonzero if this instruction has been conditionally skipped. */ int condjmp; /* The label that will be jumped to when the instruction is skipped. */ @@ -16,8 +17,6 @@ typedef struct DisasContext { /* Thumb-2 conditional execution bits. */ int condexec_mask; int condexec_cond; - struct TranslationBlock *tb; - int singlestep_enabled; int thumb; int sctlr_b; TCGMemOp be_data; @@ -150,7 +149,8 @@ static void disas_set_insn_syndrome(DisasContext *s, uint32_t syn) #ifdef TARGET_AARCH64 void a64_translate_init(void); -void gen_intermediate_code_a64(CPUState *cpu, TranslationBlock *tb); +void gen_intermediate_code_a64(DisasContextBase *db, CPUState *cpu, + TranslationBlock *tb); void gen_a64_set_pc_im(uint64_t val); void aarch64_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf, int flags); @@ -159,7 +159,8 @@ static inline void a64_translate_init(void) { } -static inline void gen_intermediate_code_a64(CPUState *cpu, TranslationBlock *tb) +static inline void gen_intermediate_code_a64(DisasContextBase *db, CPUState *cpu, + TranslationBlock *tb) { } -- GitLab