Re: [PATCH V3 10/17] riscv: compat: Add elf.h implementation

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On Thu, Jan 20, 2022 at 8:39 AM <guoren@xxxxxxxxxx> wrote:
> From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
>
> Implement necessary type and macro for compat elf. See the code
> comment for detail.
>
> Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>

Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>

> +
> +/*
> + * FIXME: not sure SET_PERSONALITY for compat process is right!
> + */
> +#define SET_PERSONALITY(ex)                                    \
> +do {    if ((ex).e_ident[EI_CLASS] == ELFCLASS32)              \
> +               set_thread_flag(TIF_32BIT);                     \
> +       else                                                    \
> +               clear_thread_flag(TIF_32BIT);                   \
> +       if (personality(current->personality) != PER_LINUX32)   \
> +               set_personality(PER_LINUX |                     \
> +                       (current->personality & (~PER_MASK)));  \
> +} while (0)
> +

The implementation looks good to me now,  you can remove that comment above it.

        Arnd



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