linux-kernel - [PATCH v6 08/27] csky: define syscall_get

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Message-ID: <20181213172207.GH6024@altlinux.org>
Date:   Thu, 13 Dec 2018 20:22:07 +0300
From:   "Dmitry V. Levin" <ldv@...linux.org>
To:     Guo Ren <guoren@...nel.org>, Paul Moore <paul@...l-moore.com>,
        Eric Paris <eparis@...hat.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Andy Lutomirski <luto@...nel.org>
Cc:     Elvira Khabirova <lineprinter@...linux.org>,
        Eugene Syromyatnikov <esyr@...hat.com>, linux-audit@...hat.com,
        linux-kernel@...r.kernel.org
Subject: [PATCH v6 08/27] csky: define syscall_get_arch()

syscall_get_arch() is required to be implemented on all architectures
in order to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO
request.

Cc: Guo Ren <guoren@...nel.org>
Cc: Paul Moore <paul@...l-moore.com>
Cc: Eric Paris <eparis@...hat.com>
Cc: Oleg Nesterov <oleg@...hat.com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Elvira Khabirova <lineprinter@...linux.org>
Cc: Eugene Syromyatnikov <esyr@...hat.com>
Cc: linux-audit@...hat.com
Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
---

Notes:
    v6: unchanged

 arch/csky/include/asm/syscall.h | 7 +++++++
 include/uapi/linux/audit.h      | 1 +
 2 files changed, 8 insertions(+)

diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h
index 926a64a8b4ee..d637445737b7 100644
--- a/arch/csky/include/asm/syscall.h
+++ b/arch/csky/include/asm/syscall.h
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/err.h>
 #include <abi/regdef.h>
+#include <uapi/linux/audit.h>
 
 static inline int
 syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
@@ -68,4 +69,10 @@ syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 	memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
 }
 
+static inline int
+syscall_get_arch(void)
+{
+	return AUDIT_ARCH_CSKY;
+}
+
 #endif	/* __ASM_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 72aeea0a740d..55904a40d768 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -384,6 +384,7 @@ enum {
 #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_CSKY		(EM_CSKY|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_FRV		(EM_FRV)
 #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
-- 
ldv