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From: Palmer Dabbelt <palmer@sifive.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arch@vger.kernel.org,
	uclinux-h8-devel@lists.sourceforge.jp, yury.norov@gmail.com,
	y2038@lists.linaro.org, linux-api@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	Vineet Gupta <vgupta@synopsys.com>, Guo Ren <guoren@kernel.org>,
	Greentime Hu <green.hu@gmail.com>,
	linux-hexagon@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Guan Xuetao <gxt@pku.edu.cn>, Stafford Horne <shorne@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 8/8] riscv: Use latest system call ABI
Date: Mon, 25 Feb 2019 11:19:11 -0800	[thread overview]
Message-ID: <CANs6eMkY09Q-5m0venYjuu5zbuGhPpH23VuGw8Ct_nc0m7aVTg@mail.gmail.com> (raw)
In-Reply-To: <20190218210712.3503891-9-arnd@arndb.de>

On Mon, Feb 18, 2019 at 1:07 PM Arnd Bergmann <arnd@arndb.de> wrote:

> We don't yet have an upstream glibc port for riscv, so there is no user
> space for the existing ABI, and we can remove the definitions for 32-bit
> time_t, off_t and struct resource and system calls based on them,
> including the vdso.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/riscv/Kconfig                   | 1 -
>  arch/riscv/include/uapi/asm/unistd.h | 5 +----
>  arch/riscv/kernel/vdso/Makefile      | 2 ++
>  3 files changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 09fa3a87bf30..feeeaa60697c 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -11,7 +11,6 @@ config 32BIT
>
>  config RISCV
>         def_bool y
> -       select ARCH_32BIT_OFF_T if !64BIT
>         # even on 32-bit, physical (and DMA) addresses are > 32-bits
>         select PHYS_ADDR_T_64BIT
>         select OF
> diff --git a/arch/riscv/include/uapi/asm/unistd.h
> b/arch/riscv/include/uapi/asm/unistd.h
> index 486a288b454c..0e2eeeb1fd27 100644
> --- a/arch/riscv/include/uapi/asm/unistd.h
> +++ b/arch/riscv/include/uapi/asm/unistd.h
> @@ -17,11 +17,8 @@
>
>  #ifdef __LP64__
>  #define __ARCH_WANT_NEW_STAT
> -#endif /* __LP64__ */
>  #define __ARCH_WANT_SET_GET_RLIMIT
> -#ifndef __LP64__
> -#define __ARCH_WANT_TIME32_SYSCALLS
> -#endif
> +#endif /* __LP64__ */
>
>  #include <asm-generic/unistd.h>
>
> diff --git a/arch/riscv/kernel/vdso/Makefile
> b/arch/riscv/kernel/vdso/Makefile
> index eed1c137f618..fec62b24df89 100644
> --- a/arch/riscv/kernel/vdso/Makefile
> +++ b/arch/riscv/kernel/vdso/Makefile
> @@ -2,9 +2,11 @@
>
>  # Symbols present in the vdso
>  vdso-syms  = rt_sigreturn
> +ifdef CONFIG_64BIT
>  vdso-syms += gettimeofday
>  vdso-syms += clock_gettime
>  vdso-syms += clock_getres
> +endif
>  vdso-syms += getcpu
>  vdso-syms += flush_icache
>
> --
> 2.20.0
>

Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
_______________________________________________
Y2038 mailing list
Y2038@lists.linaro.org
https://lists.linaro.org/mailman/listinfo/y2038

      reply	other threads:[~2019-02-25 19:19 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-18 21:07 [PATCH 0/8] y2038: remove time32 ABI on rv32 and csky Arnd Bergmann
2019-02-18 21:07 ` Arnd Bergmann
2019-02-18 21:07 ` Arnd Bergmann
2019-02-18 21:07 ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 1/8] compat ABI: use non-compat openat and open_by_handle_at variants Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 2/8] 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-19  8:56   ` Geert Uytterhoeven
2019-02-19  8:56     ` Geert Uytterhoeven
2019-02-19  8:56     ` Geert Uytterhoeven
2019-02-19  8:56     ` Geert Uytterhoeven
2019-02-19  9:10     ` Arnd Bergmann
2019-02-19  9:10       ` Arnd Bergmann
2019-02-19  9:10       ` Arnd Bergmann
2019-02-19  9:10       ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 3/8] asm-generic: Drop getrlimit and setrlimit syscalls from default list Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 4/8] asm-generic: Make time32 syscall numbers optional Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-19 20:06   ` Geert Uytterhoeven
2019-02-19 20:06     ` Geert Uytterhoeven
2019-02-19 20:06     ` Geert Uytterhoeven
2019-02-19 20:06     ` Geert Uytterhoeven
2019-02-19 20:06     ` Geert Uytterhoeven
2019-02-19 20:29     ` Arnd Bergmann
2019-02-19 20:29       ` Arnd Bergmann
2019-02-19 20:29       ` Arnd Bergmann
2019-02-19 20:29       ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 5/8] unicore32: Fix __ARCH_WANT_STAT64 definition Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 6/8] checksyscalls: fix up mq_timedreceive and stat exceptions Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 7/8] csky: Use latest system call ABI Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 22:40   ` Joseph Myers
2019-02-18 22:40     ` Joseph Myers
2019-02-18 22:40     ` Joseph Myers
2019-02-18 22:40     ` Joseph Myers
2019-02-19  2:18   ` Guo Ren
2019-02-19  2:18     ` Guo Ren
2019-02-19  2:18     ` Guo Ren
2019-02-19  9:03     ` Arnd Bergmann
2019-02-19  9:03       ` Arnd Bergmann
2019-02-19  9:03       ` Arnd Bergmann
2019-02-19  9:03       ` Arnd Bergmann
2019-02-18 21:07 ` [PATCH 8/8] riscv: " Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-18 21:07   ` Arnd Bergmann
2019-02-25 19:19   ` Palmer Dabbelt [this message]

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