From 03afa5f808c5af74fa137a20b10f73b0b30aa563 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 6 Nov 2013 17:29:39 +1000 Subject: exec: Delay CPU_LOG_TB_CPU until we actually execute a TB The previous placement could result in duplicate logging while still processing interrupts. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- cpu-exec.c | 36 +++++++++++++++++++----------------- 1 file changed, 19 insertions(+), 17 deletions(-) (limited to 'cpu-exec.c') diff --git a/cpu-exec.c b/cpu-exec.c index 30cfa2a63a..3c4800fc1f 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -53,7 +53,25 @@ void cpu_resume_from_signal(CPUArchState *env, void *puc) static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu, uint8_t *tb_ptr) { CPUArchState *env = cpu->env_ptr; - uintptr_t next_tb = tcg_qemu_tb_exec(env, tb_ptr); + uintptr_t next_tb; + +#if defined(DEBUG_DISAS) + if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) { +#if defined(TARGET_I386) + log_cpu_state(cpu, CPU_DUMP_CCOP); +#elif defined(TARGET_M68K) + /* ??? Should not modify env state for dumping. */ + cpu_m68k_flush_flags(env, env->cc_op); + env->cc_op = CC_OP_FLAGS; + env->sr = (env->sr & 0xffe0) | env->cc_dest | (env->cc_x << 4); + log_cpu_state(cpu, 0); +#else + log_cpu_state(cpu, 0); +#endif + } +#endif /* DEBUG_DISAS */ + + next_tb = tcg_qemu_tb_exec(env, tb_ptr); if ((next_tb & TB_EXIT_MASK) > TB_EXIT_IDX1) { /* We didn't start executing this TB (eg because the instruction * counter hit zero); we must restore the guest PC to the address @@ -579,22 +597,6 @@ int cpu_exec(CPUArchState *env) env->exception_index = EXCP_INTERRUPT; cpu_loop_exit(env); } -#if defined(DEBUG_DISAS) - if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) { - /* restore flags in standard format */ -#if defined(TARGET_I386) - log_cpu_state(cpu, CPU_DUMP_CCOP); -#elif defined(TARGET_M68K) - cpu_m68k_flush_flags(env, env->cc_op); - env->cc_op = CC_OP_FLAGS; - env->sr = (env->sr & 0xffe0) - | env->cc_dest | (env->cc_x << 4); - log_cpu_state(cpu, 0); -#else - log_cpu_state(cpu, 0); -#endif - } -#endif /* DEBUG_DISAS */ spin_lock(&tcg_ctx.tb_ctx.tb_lock); tb = tb_find_fast(env); /* Note: we do it here to avoid a gcc bug on Mac OS X when -- cgit v1.2.1