Re: [Qemu-devel] [PATCH v4 2/9] target/ppc: Convert to disas_set_info hook

[Philippe Mathieu-Daudé]

On 09/28/2017 01:54 PM, Richard Henderson wrote:
> Reviewed-by: Alex Bennée <address@hidden>

Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Tested-by: Philippe Mathieu-Daudé <address@hidden>

> Signed-off-by: Richard Henderson <address@hidden>
> ---
>   disas.c                     | 33 ---------------------------------
>   monitor.c                   |  5 -----
>   target/ppc/translate.c      |  5 +----
>   target/ppc/translate_init.c | 21 +++++++++++++++++++++
>   4 files changed, 22 insertions(+), 42 deletions(-)
>
> diff --git a/disas.c b/disas.c
> index 2be716fdb2..3a375a3b6c 100644
> --- a/disas.c
> +++ b/disas.c
> @@ -205,23 +205,6 @@ void target_disas(FILE *out, CPUState *cpu, target_ulong 
> code,
>           cc->disas_set_info(cpu, &s.info);
>       }
>   
> -#if defined(TARGET_PPC)
> -    if ((flags >> 16) & 1) {
> -        s.info.endian = BFD_ENDIAN_LITTLE;
> -    }
> -    if (flags & 0xFFFF) {
> -        /* If we have a precise definition of the instruction set, use it. */
> -        s.info.mach = flags & 0xFFFF;
> -    } else {
> -#ifdef TARGET_PPC64
> -        s.info.mach = bfd_mach_ppc64;
> -#else
> -        s.info.mach = bfd_mach_ppc;
> -#endif
> -    }
> -    s.info.disassembler_options = (char *)"any";
> -    s.info.print_insn = print_insn_ppc;
> -#endif
>       if (s.info.print_insn == NULL) {
>           s.info.print_insn = print_insn_od_target;
>       }
> @@ -381,22 +364,6 @@ void monitor_disas(Monitor *mon, CPUState *cpu,
>           cc->disas_set_info(cpu, &s.info);
>       }
>   
> -#if defined(TARGET_PPC)
> -    if (flags & 0xFFFF) {
> -        /* If we have a precise definition of the instruction set, use it. */
> -        s.info.mach = flags & 0xFFFF;
> -    } else {
> -#ifdef TARGET_PPC64
> -        s.info.mach = bfd_mach_ppc64;
> -#else
> -        s.info.mach = bfd_mach_ppc;
> -#endif
> -    }
> -    if ((flags >> 16) & 1) {
> -        s.info.endian = BFD_ENDIAN_LITTLE;
> -    }
> -    s.info.print_insn = print_insn_ppc;
> -#endif
>       if (!s.info.print_insn) {
>           monitor_printf(mon, "0x" TARGET_FMT_lx
>                          ": Asm output not supported on this arch\n", pc);
> diff --git a/monitor.c b/monitor.c
> index 1184bec678..d55ad61dbb 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -1310,11 +1310,6 @@ static void memory_dump(Monitor *mon, int count, int 
> format, int wsize,
>   
>       if (format == 'i') {
>           int flags = 0;
> -#ifdef TARGET_PPC
> -        CPUArchState *env = mon_get_cpu_env();
> -        flags = msr_le << 16;
> -        flags |= env->bfd_mach;
> -#endif
>           monitor_disas(mon, cs, addr, count, is_physical, flags);
>           return;
>       }
> diff --git a/target/ppc/translate.c b/target/ppc/translate.c
> index 606b605ba0..bc155f1036 100644
> --- a/target/ppc/translate.c
> +++ b/target/ppc/translate.c
> @@ -7395,12 +7395,9 @@ void gen_intermediate_code(CPUState *cs, struct 
> TranslationBlock *tb)
>   #if defined(DEBUG_DISAS)
>       if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)
>           && qemu_log_in_addr_range(pc_start)) {
> -        int flags;
> -        flags = env->bfd_mach;
> -        flags |= ctx.le_mode << 16;
>           qemu_log_lock();
>           qemu_log("IN: %s\n", lookup_symbol(pc_start));
> -        log_target_disas(cs, pc_start, ctx.nip - pc_start, flags);
> +        log_target_disas(cs, pc_start, ctx.nip - pc_start, 0);
>           qemu_log("\n");
>           qemu_log_unlock();
>       }
> diff --git a/target/ppc/translate_init.c b/target/ppc/translate_init.c
> index c6399a3a0d..2863e2c0b0 100644
> --- a/target/ppc/translate_init.c
> +++ b/target/ppc/translate_init.c
> @@ -10681,6 +10681,26 @@ static gchar *ppc_gdb_arch_name(CPUState *cs)
>   #endif
>   }
>   
> +static void ppc_disas_set_info(CPUState *cs, disassemble_info *info)
> +{
> +    PowerPCCPU *cpu = POWERPC_CPU(cs);
> +    CPUPPCState *env = &cpu->env;
> +
> +    if ((env->hflags >> MSR_LE) & 1) {
> +        info->endian = BFD_ENDIAN_LITTLE;
> +    }
> +    info->mach = env->bfd_mach;
> +    if (!env->bfd_mach) {
> +#ifdef TARGET_PPC64
> +        info->mach = bfd_mach_ppc64;
> +#else
> +        info->mach = bfd_mach_ppc;
> +#endif
> +    }
> +    info->disassembler_options = (char *)"any";
> +    info->print_insn = print_insn_ppc;
> +}
> +
>   static Property ppc_cpu_properties[] = {
>       DEFINE_PROP_BOOL("pre-2.8-migration", PowerPCCPU, pre_2_8_migration, 
> false),
>       DEFINE_PROP_BOOL("pre-2.10-migration", PowerPCCPU, pre_2_10_migration,
> @@ -10742,6 +10762,7 @@ static void ppc_cpu_class_init(ObjectClass *oc, void 
> *data)
>   #ifndef CONFIG_USER_ONLY
>       cc->virtio_is_big_endian = ppc_cpu_is_big_endian;
>   #endif
> +    cc->disas_set_info = ppc_disas_set_info;
>   
>       dc->fw_name = "PowerPC,UNKNOWN";
>   }