On Mon, 2018-12-10 at 07:29 +0300, Dmitry V. Levin wrote:
> syscall_get_arch() is required to be implemented on all architectures
> in addition to already implemented syscall_get_nr(),
> syscall_get_arguments(), syscall_get_error(), and
> syscall_get_return_value() functions in order to extend the generic
> ptrace API with PTRACE_GET_SYSCALL_INFO request.
>
> Cc: Mark Salter <msal...@redhat.com>
> Cc: Aurelien Jacquiot <jacquiot.aurel...@gmail.com>
> Cc: Paul Moore <p...@paul-moore.com>
> Cc: Eric Paris <epa...@redhat.com>
> Cc: Oleg Nesterov <o...@redhat.com>
> Cc: Andy Lutomirski <l...@kernel.org>
> Cc: Elvira Khabirova <lineprin...@altlinux.org>
> Cc: Eugene Syromyatnikov <e...@redhat.com>
> Cc: linux-c6x-...@linux-c6x.org
> Cc: linux-au...@redhat.com
> Signed-off-by: Dmitry V. Levin <l...@altlinux.org>
> ---
>
> Notes:
> v5: added Cc
>
> arch/c6x/include/asm/syscall.h | 7 +++++++
> include/uapi/linux/audit.h | 2 ++
> 2 files changed, 9 insertions(+)
>
> diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h
> index ae2be315ee9c..39dbd1ef994c 100644
> --- a/arch/c6x/include/asm/syscall.h
> +++ b/arch/c6x/include/asm/syscall.h
> @@ -11,6 +11,7 @@
> #ifndef __ASM_C6X_SYSCALL_H
> #define __ASM_C6X_SYSCALL_H
>
> +#include <uapi/linux/audit.h>
> #include <linux/err.h>
> #include <linux/sched.h>
>
> @@ -120,4 +121,10 @@ static inline void syscall_set_arguments(struct
> task_struct *task,
> }
> }
>
> +static inline int syscall_get_arch(void)
> +{
> + return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
> + ? AUDIT_ARCH_C6XBE : AUDIT_ARCH_C6X;
> +}
> +
> #endif /* __ASM_C6X_SYSCALLS_H */
> diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
> index bedf3bf54c3a..72aeea0a740d 100644
> --- a/include/uapi/linux/audit.h
> +++ b/include/uapi/linux/audit.h
> @@ -381,6 +381,8 @@ enum {
> #define AUDIT_ARCH_ARCV2BE (EM_ARCV2)
> #define AUDIT_ARCH_ARM (EM_ARM|__AUDIT_ARCH_LE)
> #define AUDIT_ARCH_ARMEB (EM_ARM)
> +#define AUDIT_ARCH_C6X (EM_TI_C6000|__AUDIT_ARCH_LE)
> +#define AUDIT_ARCH_C6XBE (EM_TI_C6000)
> #define AUDIT_ARCH_CRIS (EM_CRIS|__AUDIT_ARCH_LE)
> #define AUDIT_ARCH_FRV (EM_FRV)
> #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
Acked-by: Mark Salter <msal...@redhat.com>
