[PATCH 12/13] riscv: define syscall_get_arch()

Dmitry V. Levin
2018-11-09T03:17:17Z

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

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
arch/riscv/include/asm/syscall.h | 6 ++++++
include/uapi/linux/audit.h | 1 +
2 files changed, 7 insertions(+)

diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h
index 8d25f8904c00..7e1e26ca7317 100644
--- a/arch/riscv/include/asm/syscall.h
+++ b/arch/riscv/include/asm/syscall.h
@@ -18,6 +18,7 @@
#ifndef _ASM_RISCV_SYSCALL_H
#define _ASM_RISCV_SYSCALL_H

+#include <uapi/linux/audit.h>
#include <linux/sched.h>
#include <linux/err.h>

@@ -99,4 +100,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
}

+static inline int syscall_get_arch(void)
+{
+ return AUDIT_ARCH_RISCV;
+}
+
#endif /* _ASM_RISCV_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index c4c8b131af48..ad4105c602a1 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -405,6 +405,7 @@ enum {
/* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */
#define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_PPC64LE (EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
+#define AUDIT_ARCH_RISCV (EM_RISCV|__AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_S390 (EM_S390)
#define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT)
#define AUDIT_ARCH_SH (EM_SH)
--
ldv