From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Dmitry V. Levin" Subject: [PATCH v5 09/25] hexagon: define remaining syscall_get_* functions Date: Mon, 10 Dec 2018 07:29:48 +0300 Message-ID: <20181210042948.GI6131@altlinux.org> References: <20181210042352.GA6092@altlinux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: Richard Kuo , Paul Moore , Eric Paris , Oleg Nesterov , Andy Lutomirski Cc: Elvira Khabirova , Eugene Syromyatnikov , linux-hexagon@vger.kernel.org, linux-audit@redhat.com, linux-kernel@vger.kernel.org List-Id: linux-audit@redhat.com 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 3 syscall_get_* functions as documented in asm-generic/syscall.h: syscall_get_error, syscall_get_return_value, and syscall_get_arch. Cc: Richard Kuo Cc: Paul Moore Cc: Eric Paris Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Cc: linux-hexagon@vger.kernel.org Cc: linux-audit@redhat.com Signed-off-by: Dmitry V. Levin --- Notes: v5: added syscall_get_error and syscall_get_return_value arch/hexagon/include/asm/syscall.h | 20 ++++++++++++++++++++ include/uapi/linux/audit.h | 1 + 2 files changed, 21 insertions(+) diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index 4af9c7b6f13a..09c7b2884475 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -21,6 +21,8 @@ #ifndef _ASM_HEXAGON_SYSCALL_H #define _ASM_HEXAGON_SYSCALL_H +#include + typedef long (*syscall_fn)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); @@ -43,4 +45,22 @@ static inline void syscall_get_arguments(struct task_struct *task, BUG_ON(i + n > 6); memcpy(args, &(®s->r00)[i], n * 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(void) +{ + return AUDIT_ARCH_HEXAGON; +} + #endif diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index 672c6d9d7577..b8e848736031 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -387,6 +387,7 @@ enum { #define AUDIT_ARCH_CSKY (EM_CSKY|__AUDIT_ARCH_LE) #define AUDIT_ARCH_FRV (EM_FRV) #define AUDIT_ARCH_H8300 (EM_H8_300) +#define AUDIT_ARCH_HEXAGON (EM_HEXAGON) #define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE) #define AUDIT_ARCH_IA64 (EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) #define AUDIT_ARCH_M32R (EM_M32R) -- ldv