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Re: [Qemu-devel] [PATCH v2 1/2] coroutine-ucontext: Help valgrind unders


From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH v2 1/2] coroutine-ucontext: Help valgrind understand coroutines
Date: Fri, 13 Jul 2012 16:37:41 +0100

On 13 July 2012 16:31, Kevin Wolf <address@hidden> wrote:
> +#ifdef CONFIG_VALGRIND_H
> +/* Work around an unused variable in the valgrind.h macro... */
> +#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
> +static inline void valgrind_stack_deregister(CoroutineUContext *co)
> +{
> +    VALGRIND_STACK_DEREGISTER(co->valgrind_stack_id);
> +}
> +#pragma GCC diagnostic error "-Wunused-but-set-variable"
> +#endif

'#pragma .. error' will defeat the configure code which makes warnings
not fatal in release builds.

-- PMM



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