syscall_get_* functions are required to be implemented on all architectures in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request.
This adds remaining 2 syscall_get_* functions as documented in asm-generic/syscall.h: syscall_get_error and syscall_get_return_value. Cc: Richard Kuo <r...@codeaurora.org> Cc: Elvira Khabirova <lineprin...@altlinux.org> Cc: Eugene Syromyatnikov <e...@redhat.com> Cc: Oleg Nesterov <o...@redhat.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: linux-hexa...@vger.kernel.org Signed-off-by: Dmitry V. Levin <l...@altlinux.org> --- Richard, this patch is waiting for ACK since November. Notes: v10: unchanged v9: unchanged v8: moved syscall_get_arch to separate audit patchset v7: unchanged v6: added missing includes v5: added syscall_get_error and syscall_get_return_value v4: unchanged v3: unchanged v2: unchanged arch/hexagon/include/asm/syscall.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index dab26a71f577..0f28a6a39c3a 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -22,6 +22,8 @@ #define _ASM_HEXAGON_SYSCALL_H #include <uapi/linux/audit.h> +#include <linux/err.h> +#include <asm/ptrace.h> typedef long (*syscall_fn)(unsigned long, unsigned long, unsigned long, unsigned long, @@ -44,6 +46,18 @@ static inline void syscall_get_arguments(struct task_struct *task, memcpy(args, &(®s->r00)[0], 6 * sizeof(args[0])); } +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + return IS_ERR_VALUE(regs->r00) ? regs->r00 : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r00; +} + static inline int syscall_get_arch(struct task_struct *task) { return AUDIT_ARCH_HEXAGON; -- ldv