nds32: define syscall_get_arch()

syscall_get_arch() is required to be implemented on all architectures
in addition to already implemented syscall_get_nr(),
syscall_get_arguments(), syscall_get_error(), and
syscall_get_return_value() functions in order to extend the generic
ptrace API with PTRACE_GET_SYSCALL_INFO request.

Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Vincent Chen <vincentc@andestech.com>
Acked-by: Greentime Hu <greentime@andestech.com>
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-audit@redhat.com
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>

diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h
index f7e5e86765fe8efe51283d7c350a6a4ab8b73863..cc56a3962f8b164415468d2aad1193a4b23286b6 100644 (file)
--- a/arch/nds32/include/asm/syscall.h
+++ b/arch/nds32/include/asm/syscall.h
@@ -5,6 +5,7 @@
 #ifndef _ASM_NDS32_SYSCALL_H
 #define _ASM_NDS32_SYSCALL_H   1
 
+#include <uapi/linux/audit.h>
 #include <linux/err.h>
 struct task_struct;
 struct pt_regs;
@@ -185,4 +186,12 @@ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
 
        memcpy(&regs->uregs[0] + i, args, n * sizeof(args[0]));
 }
+
+static inline int
+syscall_get_arch(void)
+{
+       return IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)
+               ? AUDIT_ARCH_NDS32BE : AUDIT_ARCH_NDS32;
+}
+
 #endif /* _ASM_NDS32_SYSCALL_H */

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index fc94e74c8b770f5f97b129277ff5cfb6fa208eac..fb0529da4d495c5a26e795fa9a469367555eb5d9 100644 (file)
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -401,6 +401,8 @@ enum {
 #define AUDIT_ARCH_MIPSEL64    (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_MIPSEL64N32 (EM_MIPS|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE|\
                                 __AUDIT_ARCH_CONVENTION_MIPS64_N32)
+#define AUDIT_ARCH_NDS32       (EM_NDS32|__AUDIT_ARCH_LE)
+#define AUDIT_ARCH_NDS32BE     (EM_NDS32)
 #define AUDIT_ARCH_OPENRISC    (EM_OPENRISC)
 #define AUDIT_ARCH_PARISC      (EM_PARISC)
 #define AUDIT_ARCH_PARISC64    (EM_PARISC|__AUDIT_ARCH_64BIT)