Messages in this thread Patch in this message | | | Date | Fri, 22 Mar 2019 07:15:54 +0300 | From | "Dmitry V. Levin" <> | Subject | [PATCH linux-next v8 4/7] parisc: define syscall_get_error() |
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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.
Acked-by: Helge Deller <deller@gmx.de> # parisc Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Elvira Khabirova <lineprinter@altlinux.org> Cc: Eugene Syromyatnikov <esyr@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: linux-parisc@vger.kernel.org Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> ---
Notes: v8: added Acked-by 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 c04ffc6ac928..310016e1925d 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) { -- ldv
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