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From: Alex =?utf-8?Q?Benn=C3=A9e?= <alex.bennee@linaro.org>
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Date: Sun, 14 Sep 2014 20:36:27 +0100
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Subject: Re: [Qemu-devel] [PATCH 02/23] cpu-exec: Remove do-nothing ifdef
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To: Richard Henderson <rth@twiddle.net>
Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org, aliguori@amazon.com, afaerber@suse.de


Richard Henderson writes:

> Around the cpu_exec_enter/exit hooks contain many empty
> ifdef blocks.  Delete all of these to highlight those
> targets for which we actually need to do work.
>
> Signed-off-by: Richard Henderson <rth@twiddle.net>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>  cpu-exec.c | 32 --------------------------------
>  1 file changed, 32 deletions(-)
>
> diff --git a/cpu-exec.c b/cpu-exec.c
> index d5b86d0..808d34f 100644
> --- a/cpu-exec.c
> +++ b/cpu-exec.c
> @@ -358,27 +358,12 @@ int cpu_exec(CPUArchState *env)
>      env->df = 1 - (2 * ((env->eflags >> 10) & 1));
>      CC_OP = CC_OP_EFLAGS;
>      env->eflags &= ~(DF_MASK | CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
> -#elif defined(TARGET_SPARC)
>  #elif defined(TARGET_M68K)
>      env->cc_op = CC_OP_FLAGS;
>      env->cc_dest = env->sr & 0xf;
>      env->cc_x = (env->sr >> 4) & 1;
> -#elif defined(TARGET_ALPHA)
> -#elif defined(TARGET_ARM)
> -#elif defined(TARGET_UNICORE32)
>  #elif defined(TARGET_PPC)
>      env->reserve_addr = -1;
> -#elif defined(TARGET_LM32)
> -#elif defined(TARGET_MICROBLAZE)
> -#elif defined(TARGET_MIPS)
> -#elif defined(TARGET_MOXIE)
> -#elif defined(TARGET_OPENRISC)
> -#elif defined(TARGET_SH4)
> -#elif defined(TARGET_CRIS)
> -#elif defined(TARGET_S390X)
> -#elif defined(TARGET_XTENSA)
> -#elif defined(TARGET_TRICORE)
> -    /* XXXXX */
>  #endif
>      cc->cpu_exec_enter(cpu);
>      cpu->exception_index = -1;
> @@ -830,28 +815,11 @@ int cpu_exec(CPUArchState *env)
>      /* restore flags in standard format */
>      env->eflags = env->eflags | cpu_cc_compute_all(env, CC_OP)
>          | (env->df & DF_MASK);
> -#elif defined(TARGET_ARM)
> -    /* XXX: Save/restore host fpu exception state?.  */
> -#elif defined(TARGET_UNICORE32)
> -#elif defined(TARGET_SPARC)
> -#elif defined(TARGET_PPC)
> -#elif defined(TARGET_LM32)
>  #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);
> -#elif defined(TARGET_MICROBLAZE)
> -#elif defined(TARGET_MIPS)
> -#elif defined(TARGET_TRICORE)
> -#elif defined(TARGET_MOXIE)
> -#elif defined(TARGET_OPENRISC)
> -#elif defined(TARGET_SH4)
> -#elif defined(TARGET_ALPHA)
> -#elif defined(TARGET_CRIS)
> -#elif defined(TARGET_S390X)
> -#elif defined(TARGET_XTENSA)
> -    /* XXXXX */
>  #endif
>      cc->cpu_exec_exit(cpu);


-- 
Alex Bennée