On Wednesday 16 December 2015 00:42:35 Yury Norov wrote:
>
> #ifdef CONFIG_COMPAT
> -#define COMPAT_ELF_HWCAP (compat_elf_hwcap)
> -#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2)
> extern unsigned int compat_elf_hwcap, compat_elf_hwcap2;
> +#define COMPAT_ELF_HWCAP \
> + (is_a32_compat_task() \
> + ? compat_elf_hwcap \
> + : elf_hwcap)
> +
> +#define COMPAT_ELF_HWCAP2 \
> + (is_a32_compat_task() \
> + ? compat_elf_hwcap2 \
> + : 0)
> +
> #endif
>
>
I'm trying to understand how this is used. Are you compiling
fs/compat_binfmt_elf.c twice to handle both 32-bit ELF types?
Would it be easier to use a separate arch/arm64/kernel/binfmt_elf32.c
as a copy of fs/compat_binfmt_elf.c, with all the right macros defined
for ilp32 mode in there?
Arnd
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