From patchwork Wed Dec 28 15:45:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Llu=C3=ADs_Vilanova?= X-Patchwork-Id: 709306 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tpcjM4tD2z9t0H for ; Thu, 29 Dec 2016 02:53:59 +1100 (AEDT) Received: from localhost ([::1]:59770 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMGY9-000741-JY for incoming@patchwork.ozlabs.org; Wed, 28 Dec 2016 10:53:57 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38108) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMGPi-0000Zd-PP for qemu-devel@nongnu.org; Wed, 28 Dec 2016 10:45:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cMGPg-0004tV-1m for qemu-devel@nongnu.org; Wed, 28 Dec 2016 10:45:14 -0500 Received: from roura.ac.upc.es ([147.83.33.10]:60265) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cMGPf-0004tE-CG for qemu-devel@nongnu.org; Wed, 28 Dec 2016 10:45:12 -0500 Received: from gw-3.ac.upc.es (gw-3.ac.upc.es [147.83.30.9]) by roura.ac.upc.es (8.13.8/8.13.8) with ESMTP id uBSFjAqP010568; Wed, 28 Dec 2016 16:45:10 +0100 Received: from localhost (unknown [84.88.51.85]) by gw-3.ac.upc.es (Postfix) with ESMTPSA id 57465726; Wed, 28 Dec 2016 16:45:10 +0100 (CET) From: =?utf-8?b?TGx1w61z?= Vilanova To: qemu-devel@nongnu.org Date: Wed, 28 Dec 2016 16:45:10 +0100 Message-Id: <148293990987.31645.18185384790815560229.stgit@fimbulvetr.bsc.es> X-Mailer: git-send-email 2.11.0 In-Reply-To: <148293987753.31645.8166717498506500137.stgit@fimbulvetr.bsc.es> References: <148293987753.31645.8166717498506500137.stgit@fimbulvetr.bsc.es> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-MIME-Autoconverted: from 8bit to quoted-printable by roura.ac.upc.es id uBSFjAqP010568 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x [fuzzy] X-Received-From: 147.83.33.10 Subject: [Qemu-devel] [PATCH v4 5/6] target: [tcg, i386] Port to generic translation framework X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Peter Crosthwaite , Eduardo Habkost , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Lluís Vilanova --- target-i386/translate.c | 304 ++++++++++++++++++++++------------------------- 1 file changed, 140 insertions(+), 164 deletions(-) diff --git a/target-i386/translate.c b/target-i386/translate.c index 61d73e286f..a63627b470 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -69,6 +69,10 @@ case (2 << 6) | (OP << 3) | 0 ... (2 << 6) | (OP << 3) | 7: \ case (3 << 6) | (OP << 3) | 0 ... (3 << 6) | (OP << 3) | 7 +#include "exec/translate-all_template.h" +#define DJ_JUMP (DJ_TARGET + 0) /* end of block due to call/jump */ +#define DJ_MISC (DJ_TARGET + 1) /* some other reason */ + //#define MACRO_TEST 1 /* global register indexes */ @@ -94,7 +98,10 @@ static TCGv_i64 cpu_tmp1_i64; static int x86_64_hregs; #endif + typedef struct DisasContext { + DisasContextBase base; + /* current insn context */ int override; /* -1 if no override */ int prefix; @@ -102,8 +109,6 @@ typedef struct DisasContext { TCGMemOp dflag; target_ulong pc_start; target_ulong pc; /* pc = eip + cs_base */ - int is_jmp; /* 1 = means jump (stop translation), 2 means CPU - static state change (stop translation) */ /* current block context */ target_ulong cs_base; /* base of CS segment */ int pe; /* protected mode */ @@ -124,12 +129,10 @@ typedef struct DisasContext { int cpl; int iopl; int tf; /* TF cpu flag */ - int singlestep_enabled; /* "hardware" single step enabled */ int jmp_opt; /* use direct block chaining for direct jumps */ int repz_opt; /* optimize jumps within repz instructions */ int mem_index; /* select memory access functions */ uint64_t flags; /* all execution flags */ - struct TranslationBlock *tb; int popl_esp_hack; /* for correct popl with esp base handling */ int rip_offset; /* only used in x86_64, but left for simplicity */ int cpuid_features; @@ -140,6 +143,8 @@ typedef struct DisasContext { int cpuid_xsave_features; } DisasContext; +#include "translate-all_template.h" + static void gen_eob(DisasContext *s); static void gen_jmp(DisasContext *s, target_ulong eip); static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num); @@ -1112,7 +1117,7 @@ static void gen_bpt_io(DisasContext *s, TCGv_i32 t_port, int ot) static inline void gen_ins(DisasContext *s, TCGMemOp ot) { - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } gen_string_movl_A0_EDI(s); @@ -1127,14 +1132,14 @@ static inline void gen_ins(DisasContext *s, TCGMemOp ot) gen_op_movl_T0_Dshift(ot); gen_op_add_reg_T0(s->aflag, R_EDI); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); } } static inline void gen_outs(DisasContext *s, TCGMemOp ot) { - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } gen_string_movl_A0_ESI(s); @@ -1147,7 +1152,7 @@ static inline void gen_outs(DisasContext *s, TCGMemOp ot) gen_op_movl_T0_Dshift(ot); gen_op_add_reg_T0(s->aflag, R_ESI); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); } } @@ -2130,7 +2135,7 @@ static inline int insn_const_size(TCGMemOp ot) static inline bool use_goto_tb(DisasContext *s, target_ulong pc) { #ifndef CONFIG_USER_ONLY - return (pc & TARGET_PAGE_MASK) == (s->tb->pc & TARGET_PAGE_MASK) || + return (pc & TARGET_PAGE_MASK) == (s->base.tb->pc & TARGET_PAGE_MASK) || (pc & TARGET_PAGE_MASK) == (s->pc_start & TARGET_PAGE_MASK); #else return true; @@ -2145,7 +2150,7 @@ static inline void gen_goto_tb(DisasContext *s, int tb_num, target_ulong eip) /* jump to same page: we can use a direct jump */ tcg_gen_goto_tb(tb_num); gen_jmp_im(eip); - tcg_gen_exit_tb((uintptr_t)s->tb + tb_num); + tcg_gen_exit_tb((uintptr_t)s->base.tb + tb_num); } else { /* jump to another page: currently not optimized */ gen_jmp_im(eip); @@ -2166,7 +2171,7 @@ static inline void gen_jcc(DisasContext *s, int b, gen_set_label(l1); gen_goto_tb(s, 1, val); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } else { l1 = gen_new_label(); l2 = gen_new_label(); @@ -2237,11 +2242,11 @@ static void gen_movl_seg_T0(DisasContext *s, int seg_reg) stop as a special handling must be done to disable hardware interrupts for the next instruction */ if (seg_reg == R_SS || (s->code32 && seg_reg < R_FS)) - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } else { gen_op_movl_seg_T0_vm(seg_reg); if (seg_reg == R_SS) - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } } @@ -2413,7 +2418,7 @@ static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip) gen_update_cc_op(s); gen_jmp_im(cur_eip); gen_helper_raise_exception(cpu_env, tcg_const_i32(trapno)); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } /* Generate #UD for the current instruction. The assumption here is that @@ -2451,7 +2456,7 @@ static void gen_interrupt(DisasContext *s, int intno, gen_jmp_im(cur_eip); gen_helper_raise_interrupt(cpu_env, tcg_const_i32(intno), tcg_const_i32(next_eip - cur_eip)); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } static void gen_debug(DisasContext *s, target_ulong cur_eip) @@ -2459,7 +2464,7 @@ static void gen_debug(DisasContext *s, target_ulong cur_eip) gen_update_cc_op(s); gen_jmp_im(cur_eip); gen_helper_debug(cpu_env); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } static void gen_set_hflag(DisasContext *s, uint32_t mask) @@ -2512,17 +2517,17 @@ static void gen_eob_inhibit_irq(DisasContext *s, bool inhibit) gen_reset_hflag(s, HF_INHIBIT_IRQ_MASK); } - if (s->tb->flags & HF_RF_MASK) { + if (s->base.tb->flags & HF_RF_MASK) { gen_helper_reset_rf(cpu_env); } - if (s->singlestep_enabled) { + if (s->base.singlestep_enabled) { gen_helper_debug(cpu_env); } else if (s->tf) { gen_helper_single_step(cpu_env); } else { tcg_gen_exit_tb(0); } - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } /* End of block, resetting the inhibit irq flag. */ @@ -2539,7 +2544,7 @@ static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num) set_cc_op(s, CC_OP_DYNAMIC); if (s->jmp_opt) { gen_goto_tb(s, tb_num, eip); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } else { gen_jmp_im(eip); gen_eob(s); @@ -4376,10 +4381,10 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b, } } -/* convert one instruction. s->is_jmp is set if the translation must +/* convert one instruction. s->base.jmp_type is set if the translation must be stopped. Return the next pc value */ -static target_ulong disas_insn(CPUX86State *env, DisasContext *s, - target_ulong pc_start) +static target_ulong gen_intermediate_code_target_disas_insn( + DisasContext *s, CPUX86State *env) { int b, prefixes; int shift; @@ -4387,6 +4392,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, int modrm, reg, rm, mod, op, opreg, val; target_ulong next_eip, tval; int rex_w, rex_r; + target_ulong pc_start = s->base.pc_next; s->pc_start = s->pc = pc_start; prefixes = 0; @@ -5327,7 +5333,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_movl_seg_T0(s, reg); gen_pop_update(s, ot); /* Note that reg == R_SS in gen_movl_seg_T0 always sets is_jmp. */ - if (s->is_jmp) { + if (s->base.jmp_type) { gen_jmp_im(s->pc - s->cs_base); if (reg == R_SS) { s->tf = 0; @@ -5342,7 +5348,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, ot = gen_pop_T0(s); gen_movl_seg_T0(s, (b >> 3) & 7); gen_pop_update(s, ot); - if (s->is_jmp) { + if (s->base.jmp_type) { gen_jmp_im(s->pc - s->cs_base); gen_eob(s); } @@ -5393,7 +5399,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0); gen_movl_seg_T0(s, reg); /* Note that reg == R_SS in gen_movl_seg_T0 always sets is_jmp. */ - if (s->is_jmp) { + if (s->base.jmp_type) { gen_jmp_im(s->pc - s->cs_base); if (reg == R_SS) { s->tf = 0; @@ -5598,7 +5604,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_movl_seg_T0(s, op); /* then put the data */ gen_op_mov_reg_v(ot, reg, cpu_T1); - if (s->is_jmp) { + if (s->base.jmp_type) { gen_jmp_im(s->pc - s->cs_base); gen_eob(s); } @@ -6254,7 +6260,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_repz_ins(s, ot, pc_start - s->cs_base, s->pc - s->cs_base); } else { gen_ins(s, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_jmp(s, s->pc - s->cs_base); } } @@ -6269,7 +6275,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_repz_outs(s, ot, pc_start - s->cs_base, s->pc - s->cs_base); } else { gen_outs(s, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_jmp(s, s->pc - s->cs_base); } } @@ -6285,14 +6291,14 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, tcg_gen_movi_tl(cpu_T0, val); gen_check_io(s, ot, pc_start - s->cs_base, SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes)); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } tcg_gen_movi_i32(cpu_tmp2_i32, val); gen_helper_in_func(ot, cpu_T1, cpu_tmp2_i32); gen_op_mov_reg_v(ot, R_EAX, cpu_T1); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -6306,14 +6312,14 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, svm_is_rep(prefixes)); gen_op_mov_v_reg(ot, cpu_T1, R_EAX); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } tcg_gen_movi_i32(cpu_tmp2_i32, val); tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T1); gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -6324,14 +6330,14 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, tcg_gen_ext16u_tl(cpu_T0, cpu_regs[R_EDX]); gen_check_io(s, ot, pc_start - s->cs_base, SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes)); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T0); gen_helper_in_func(ot, cpu_T1, cpu_tmp2_i32); gen_op_mov_reg_v(ot, R_EAX, cpu_T1); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -6344,14 +6350,14 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, svm_is_rep(prefixes)); gen_op_mov_v_reg(ot, cpu_T1, R_EAX); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T0); tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T1); gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32); gen_bpt_io(s, cpu_tmp2_i32, ot); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -6893,7 +6899,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); gen_helper_pause(cpu_env, tcg_const_i32(s->pc - pc_start)); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } break; case 0x9b: /* fwait */ @@ -7062,11 +7068,11 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, case 0x131: /* rdtsc */ gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } gen_helper_rdtsc(cpu_env); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -7131,7 +7137,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); gen_helper_hlt(cpu_env, tcg_const_i32(s->pc - pc_start)); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; } break; case 0x100: @@ -7314,7 +7320,7 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, gen_helper_vmrun(cpu_env, tcg_const_i32(s->aflag - 1), tcg_const_i32(s->pc - pc_start)); tcg_gen_exit_tb(0); - s->is_jmp = DISAS_TB_JUMP; + s->base.jmp_type = DJ_JUMP; break; case 0xd9: /* VMMCALL */ @@ -7514,11 +7520,11 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, } gen_update_cc_op(s); gen_jmp_im(pc_start - s->cs_base); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_start(); } gen_helper_rdtscp(cpu_env); - if (s->tb->cflags & CF_USE_ICOUNT) { + if (s->base.tb->cflags & CF_USE_ICOUNT) { gen_io_end(); gen_jmp(s, s->pc - s->cs_base); } @@ -8307,22 +8313,20 @@ void tcg_x86_init(void) } } -/* generate intermediate code for basic block 'tb'. */ -void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) +void restore_state_to_opc(CPUX86State *env, TranslationBlock *tb, + target_ulong *data) { - CPUX86State *env = cpu->env_ptr; - DisasContext dc1, *dc = &dc1; - target_ulong pc_ptr; - uint32_t flags; - target_ulong pc_start; - target_ulong cs_base; - int num_insns; - int max_insns; + int cc_op = data[1]; + env->eip = data[0] - tb->cs_base; + if (cc_op != CC_OP_DYNAMIC) { + env->cc_op = cc_op; + } +} - /* generate intermediate code */ - pc_start = tb->pc; - cs_base = tb->cs_base; - flags = tb->flags; +static void gen_intermediate_code_target_init_disas_context( + DisasContext *dc, CPUX86State *env) +{ + uint64_t flags = dc->base.tb->flags; dc->pe = (flags >> HF_PE_SHIFT) & 1; dc->code32 = (flags >> HF_CS32_SHIFT) & 1; @@ -8333,17 +8337,17 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) dc->cpl = (flags >> HF_CPL_SHIFT) & 3; dc->iopl = (flags >> IOPL_SHIFT) & 3; dc->tf = (flags >> TF_SHIFT) & 1; - dc->singlestep_enabled = cpu->singlestep_enabled; dc->cc_op = CC_OP_DYNAMIC; dc->cc_op_dirty = false; - dc->cs_base = cs_base; - dc->tb = tb; + dc->cs_base = dc->base.tb->cs_base; dc->popl_esp_hack = 0; + /* select memory access functions */ dc->mem_index = 0; #ifdef CONFIG_SOFTMMU dc->mem_index = cpu_mmu_index(env, false); #endif + dc->cpuid_features = env->features[FEAT_1_EDX]; dc->cpuid_ext_features = env->features[FEAT_1_ECX]; dc->cpuid_ext2_features = env->features[FEAT_8000_0001_EDX]; @@ -8355,7 +8359,7 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) dc->code64 = (flags >> HF_CS64_SHIFT) & 1; #endif dc->flags = flags; - dc->jmp_opt = !(dc->tf || cpu->singlestep_enabled || + dc->jmp_opt = !(dc->tf || dc->base.singlestep_enabled || (flags & HF_INHIBIT_IRQ_MASK)); /* Do not optimize repz jumps at all in icount mode, because rep movsS instructions are execured with different paths @@ -8367,13 +8371,17 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) record/replay modes and there will always be an additional step for ecx=0 when icount is enabled. */ - dc->repz_opt = !dc->jmp_opt && !(tb->cflags & CF_USE_ICOUNT); + dc->repz_opt = !dc->jmp_opt && !(dc->base.tb->cflags & CF_USE_ICOUNT); #if 0 /* check addseg logic */ if (!dc->addseg && (dc->vm86 || !dc->pe || !dc->code32)) printf("ERROR addseg\n"); #endif +} +static void gen_intermediate_code_target_init_globals( + DisasContext *dc, CPUX86State *env) +{ cpu_T0 = tcg_temp_new(); cpu_T1 = tcg_temp_new(); cpu_A0 = tcg_temp_new(); @@ -8386,116 +8394,84 @@ void gen_intermediate_code(CPUState *cpu, TranslationBlock *tb) cpu_ptr0 = tcg_temp_new_ptr(); cpu_ptr1 = tcg_temp_new_ptr(); cpu_cc_srcT = tcg_temp_local_new(); +} - dc->is_jmp = DISAS_NEXT; - pc_ptr = pc_start; - num_insns = 0; - 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; - } +static void gen_intermediate_code_target_tb_start( + DisasContext *dc, CPUX86State *env) +{ +} - gen_tb_start(tb); - for(;;) { - tcg_gen_insn_start(pc_ptr, dc->cc_op); - num_insns++; - - /* If RF is set, suppress an internally generated breakpoint. */ - if (unlikely(cpu_breakpoint_test(cpu, pc_ptr, - tb->flags & HF_RF_MASK - ? BP_GDB : BP_ANY))) { - gen_debug(dc, pc_ptr - dc->cs_base); - /* 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. */ - pc_ptr += 1; - goto done_generating; - } - if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { - gen_io_start(); - } +static void gen_intermediate_code_target_insn_start( + DisasContext *dc, CPUX86State *env) +{ + tcg_gen_insn_start(dc->base.pc_next, dc->cc_op); +} - pc_ptr = disas_insn(env, dc, pc_ptr); - /* stop translation if indicated */ - if (dc->is_jmp) - break; - /* if single step mode, we generate only one instruction and - generate an exception */ - /* if irq were inhibited with HF_INHIBIT_IRQ_MASK, we clear - the flag and abort the translation to give the irqs a - change to be happen */ - if (dc->tf || dc->singlestep_enabled || - (flags & HF_INHIBIT_IRQ_MASK)) { - gen_jmp_im(pc_ptr - dc->cs_base); - gen_eob(dc); - break; - } - /* Do not cross the boundary of the pages in icount mode, - it can cause an exception. Do it only when boundary is - crossed by the first instruction in the block. - If current instruction already crossed the bound - it's ok, - because an exception hasn't stopped this code. - */ - if ((tb->cflags & CF_USE_ICOUNT) - && ((pc_ptr & TARGET_PAGE_MASK) - != ((pc_ptr + TARGET_MAX_INSN_SIZE - 1) & TARGET_PAGE_MASK) - || (pc_ptr & ~TARGET_PAGE_MASK) == 0)) { - gen_jmp_im(pc_ptr - dc->cs_base); - gen_eob(dc); - break; - } - /* if too long translation, stop generation too */ - if (tcg_op_buf_full() || - (pc_ptr - pc_start) >= (TARGET_PAGE_SIZE - 32) || - num_insns >= max_insns) { - gen_jmp_im(pc_ptr - dc->cs_base); - gen_eob(dc); - break; - } - if (singlestep) { - gen_jmp_im(pc_ptr - dc->cs_base); - gen_eob(dc); - break; - } +static BreakpointHitType gen_intermediate_code_target_breakpoint_hit( + DisasContext *dc, CPUX86State *env, + const CPUBreakpoint *bp) +{ + /* If RF is set, suppress an internally generated breakpoint. */ + int flags = dc->base.tb->flags & HF_RF_MASK ? BP_GDB : BP_ANY; + if (bp->flags & flags) { + gen_debug(dc, dc->base.pc_next - dc->cs_base); + /* 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 generic logic setting tb->size + later does the right thing. */ + dc->base.pc_next += 1; + return BH_HIT_TB; + } else { + return BH_MISS; } - if (tb->cflags & CF_LAST_IO) - gen_io_end(); -done_generating: - gen_tb_end(tb, num_insns); +} -#ifdef DEBUG_DISAS - if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) - && qemu_log_in_addr_range(pc_start)) { - int disas_flags; - qemu_log_lock(); - qemu_log("----------------\n"); - qemu_log("IN: %s\n", lookup_symbol(pc_start)); -#ifdef TARGET_X86_64 - if (dc->code64) - disas_flags = 2; - else -#endif - disas_flags = !dc->code32; - log_target_disas(cpu, pc_start, pc_ptr - pc_start, disas_flags); - qemu_log("\n"); - qemu_log_unlock(); +static DisasJumpType gen_intermediate_code_target_stop_check( + DisasContext *dc, CPUX86State *env) +{ + if (dc->tf) { + /* + * If single step mode, we generate only one instruction and generate an + * exception. + */ + return DJ_MISC; + } else if (dc->flags & HF_INHIBIT_IRQ_MASK) { + /* + * If irq were inhibited with HF_INHIBIT_IRQ_MASK, we clear the flag and + * abort the translation to give the irqs a change to be happen. + */ + return DJ_MISC; + } else if ((dc->base.pc_next & TARGET_PAGE_MASK) + != ((dc->base.pc_next + TARGET_MAX_INSN_SIZE - 1) + & TARGET_PAGE_MASK)) { + /* next instruction crosses page boundary */ + return DJ_MISC; + } else { + /* previously set during target disassembly */ + return dc->base.jmp_type; } -#endif +} - tb->size = pc_ptr - pc_start; - tb->icount = num_insns; +static void gen_intermediate_code_target_stop( + DisasContext *dc, CPUX86State *env) +{ + DisasJumpType j = dc->base.jmp_type; + if (j == DJ_TOO_MANY || j == DJ_MISC) { + gen_jmp_im(dc->base.pc_next - dc->cs_base); + gen_eob(dc); + } } -void restore_state_to_opc(CPUX86State *env, TranslationBlock *tb, - target_ulong *data) +static int gen_intermediate_code_target_get_disas_flags( + const DisasContext *dc) { - int cc_op = data[1]; - env->eip = data[0] - tb->cs_base; - if (cc_op != CC_OP_DYNAMIC) { - env->cc_op = cc_op; +#ifdef TARGET_X86_64 + if (dc->code64) { + return 2; + } else { + return !dc->code32; } +#else + return !dc->code32; +#endif }