diff --git a/qemu/target/i386/translate.c b/qemu/target/i386/translate.c index a7bcc957..309cf548 100644 --- a/qemu/target/i386/translate.c +++ b/qemu/target/i386/translate.c @@ -532,12 +532,21 @@ static inline void gen_op_add_reg_T0(DisasContext *s, MemOp size, int reg) gen_op_mov_reg_v(s, size, reg, s->tmp0); } +static inline void gen_sync_pc(TCGContext *ctx, uint64_t pc) { + TCGv v = tcg_temp_new(ctx); + + tcg_gen_movi_tl(ctx, v, pc); + gen_op_jmp_v(ctx, v); + + tcg_temp_free(ctx, v); +} + static inline void gen_op_ld_v(DisasContext *s, int idx, TCGv t0, TCGv a0) { TCGContext *tcg_ctx = s->uc->tcg_ctx; if (HOOK_EXISTS(s->uc, UC_HOOK_MEM_READ)) - gen_jmp_im(s, s->prev_pc); // Unicorn: sync EIP + gen_sync_pc(tcg_ctx, s->prev_pc); // Unicorn: sync EIP tcg_gen_qemu_ld_tl(tcg_ctx, t0, a0, s->mem_index, idx | MO_LE); } @@ -547,7 +556,7 @@ static inline void gen_op_st_v(DisasContext *s, int idx, TCGv t0, TCGv a0) TCGContext *tcg_ctx = s->uc->tcg_ctx; if (HOOK_EXISTS(s->uc, UC_HOOK_MEM_WRITE)) - gen_jmp_im(s, s->prev_pc); // Unicorn: sync EIP + gen_sync_pc(tcg_ctx, s->prev_pc); // Unicorn: sync EIP tcg_gen_qemu_st_tl(tcg_ctx, t0, a0, s->mem_index, idx | MO_LE); } @@ -4801,7 +4810,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) if (uc_addr_is_exit(env->uc, s->pc)) { // imitate the HLT instruction gen_update_cc_op(s); - gen_jmp_im(s, pc_start - s->cs_base); + gen_sync_pc(tcg_ctx, pc_start - s->cs_base); gen_helper_hlt(tcg_ctx, tcg_ctx->cpu_env, tcg_const_i32(tcg_ctx, s->pc - pc_start)); s->base.is_jmp = DISAS_NORETURN; return s->pc; @@ -4816,7 +4825,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) } // Sync PC in advance - gen_jmp_im(s, pc_start - s->cs_base); + gen_sync_pc(tcg_ctx, pc_start - s->cs_base); // save the last operand prev_op = tcg_last_op(tcg_ctx);