Re: [PATCH v6 4/6] arm64: add seccomp syscall for compat task

Will Deacon
2014-08-26T17:53:18Z

On Thu, Aug 21, 2014 at 09:56:43AM +0100, AKASHI Takahiro wrote:
> This patch allows compat task to issue seccomp() system call.
>
> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> ---
> arch/arm64/include/asm/unistd.h | 2 +-
> arch/arm64/include/asm/unistd32.h | 3 +++
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
> index 4bc95d2..cf6ee31 100644
> --- a/arch/arm64/include/asm/unistd.h
> +++ b/arch/arm64/include/asm/unistd.h
> @@ -41,7 +41,7 @@
> #define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2)
> #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5)
>
> -#define __NR_compat_syscalls 383
> +#define __NR_compat_syscalls 384
> #endif
>
> #define __ARCH_WANT_SYS_CLONE
> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
> index e242600..2922c40 100644
> --- a/arch/arm64/include/asm/unistd32.h
> +++ b/arch/arm64/include/asm/unistd32.h
> @@ -787,3 +787,6 @@ __SYSCALL(__NR_sched_setattr, sys_sched_setattr)
> __SYSCALL(__NR_sched_getattr, sys_sched_getattr)
> #define __NR_renameat2 382
> __SYSCALL(__NR_renameat2, sys_renameat2)
> +#define __NR_seccomp 383
> +__SYSCALL(__NR_seccomp, sys_seccomp)
> +

This will need rebasing onto -rc2, as we're hooked up two new compat
syscalls recently.

Will