On 28.02.19 20:38, Dmitry V. Levin wrote:
> syscall_get_error() is required to be implemented on all
> architectures in addition to already implemented syscall_get_nr(),
> syscall_get_arguments(), syscall_get_return_value(), and
> syscall_get_arch() functions in order to extend the generic
> ptrace API with PTRACE_GET_SYSCALL_INFO request.
>
> Cc: Helge Deller <del...@gmx.de>
> Cc: James E.J. Bottomley <j...@parisc-linux.org>
> 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-par...@vger.kernel.org
> Signed-off-by: Dmitry V. Levin <l...@altlinux.org>
Acked-by: Helge Deller <del...@gmx.de> # parisc
Helge
> ---
>
> This is just a gentle ping, the patch is unchanged.
>
> Notes:
> v7: unchanged
> v6: unchanged
> v5: initial revision
>
> arch/parisc/include/asm/syscall.h | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/parisc/include/asm/syscall.h
> b/arch/parisc/include/asm/syscall.h
> index 8bff1a58c97f..477511ff7546 100644
> --- a/arch/parisc/include/asm/syscall.h
> +++ b/arch/parisc/include/asm/syscall.h
> @@ -43,6 +43,13 @@ static inline void syscall_get_arguments(struct
> task_struct *tsk,
> }
> }
>
> +static inline long syscall_get_error(struct task_struct *task,
> + struct pt_regs *regs)
> +{
> + unsigned long error = regs->gr[28];
> + return IS_ERR_VALUE(error) ? error : 0;
> +}
> +
> static inline long syscall_get_return_value(struct task_struct *task,
> struct pt_regs *regs)
> {
>
