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Re: [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32
Date 2016-01-08 10:10 +0100
Message-ID <qOBdv-4AJ-1@gated-at.bofh.it> (permalink)
References <qOsjT-6Hv-9@gated-at.bofh.it> <qOstA-6LL-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Friday 08 January 2016 02:34:38 Yury Norov wrote:
> diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
> index a519233..392301b 100644
> --- a/arch/arm64/include/asm/elf.h
> +++ b/arch/arm64/include/asm/elf.h
> @@ -160,9 +160,9 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
>  #ifdef CONFIG_COMPAT
>  
>  #ifdef __AARCH64EB__
> -#define COMPAT_ELF_PLATFORM            ("v8b")
> +#define COMPAT_ELF_PLATFORM            (is_ilp32_compat_task() ? "aarch64_be:ilp32" : "v8b")
>  #else
> -#define COMPAT_ELF_PLATFORM            ("v8l")
> +#define COMPAT_ELF_PLATFORM            (is_ilp32_compat_task() ? "aarch64:ilp32" : "v8l")
>  #endif
> 

Same comment as for patch 12: you know which one to use at compile-time,
so just drop the runtime check and use different macros.

	Arnd

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Thread

[RFC4 PATCH v6 00/21] ILP32 for ARM64 Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:40 +0100
  [PATCH v6 12/21] arm64:ilp32: share HWCAP between LP64 and ILP32 Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:40 +0100
    Re: [PATCH v6 12/21] arm64:ilp32: share HWCAP between LP64 and ILP32 Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:00 +0100
  [PATCH v6 05/21] arm64: compat: fix wrong dependency Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:40 +0100
    Re: [PATCH v6 05/21] arm64: compat: fix wrong dependency Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:00 +0100
  [PATCH v6 03/21] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:40 +0100
  [PATCH v6 21/21] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
  [PATCH v6 15/21] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
  [PATCH v6 18/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
  [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
    Re: [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:10 +0100
  [PATCH v6 13/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
    Re: [PATCH v6 13/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:10 +0100
  [PATCH v6 19/21] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
  [PATCH v6 16/21] arm64: signal: share lp64 signal routines to ilp32 Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
  [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100
    Re: [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:10 +0100
    Re: [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Arnd Bergmann <arnd@arndb.de> - 2016-01-08 10:30 +0100
      Re: [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate  table (in entry.S) to use it Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 12:20 +0100
        Re: [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Arnd Bergmann <arnd@arndb.de> - 2016-01-08 17:50 +0100
      Re: [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate  table (in entry.S) to use it Yury Norov <ynorov@caviumnetworks.com> - 2016-01-13 17:30 +0100
  [PATCH v6 17/21] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov <ynorov@caviumnetworks.com> - 2016-01-08 00:50 +0100

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