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Re: [Qemu-devel] [PATCH v6 4/7] linux-user: Fix structure target_semid64


From: Laurent Vivier
Subject: Re: [Qemu-devel] [PATCH v6 4/7] linux-user: Fix structure target_semid64_ds definition for Mips
Date: Fri, 16 Sep 2016 21:00:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0


Le 16/09/2016 à 13:14, Aleksandar Markovic a écrit :
> From: Aleksandar Markovic <address@hidden>
> 
> This patch corrects target_semid64_ds structure definition for Mips.
> 
> See, for example definition of semid64_ds for Mips in Linux kernel:
> arch/mips/include/uapi/asm/sembuf.h#L13.
> 
> This patch will also fix certain semaphore-related LTP tests for Mips,
> if they are executed in Qemu user mode for any Mips platform.
> 
> Signed-off-by: Miodrag Dinic <address@hidden>
> Signed-off-by: Aleksandar Markovic <address@hidden>
> Reviewed-by: Peter Maydell <address@hidden>
> ---
>  linux-user/mips/target_structs.h | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/linux-user/mips/target_structs.h 
> b/linux-user/mips/target_structs.h
> index fbd9955..5ba124d 100644
> --- a/linux-user/mips/target_structs.h
> +++ b/linux-user/mips/target_structs.h
> @@ -45,4 +45,20 @@ struct target_shmid_ds {
>      abi_ulong __unused2;
>  };
>  
> +#define TARGET_SEMID64_DS
> +
> +/*
> + * The semid64_ds structure for the MIPS architecture.
> + * Note extra padding because this structure is passed back and forth
> + * between kernel and user space.
> + */
> +struct target_semid64_ds {
> +    struct target_ipc_perm sem_perm;
> +    abi_ulong sem_otime;
> +    abi_ulong sem_ctime;
> +    abi_ulong sem_nsems;
> +    abi_ulong __unused3;
> +    abi_ulong __unused4;
> +};

Perhaps you can call them __unused1 and __unused2, like they are in the
kernel?

Anyway:

Reviewed-by: Laurent Vivier <address@hidden>

Laurent



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