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From: "Dmitry V. Levin" <ldv@altlinux.org>
To: Andy Lutomirski <luto@kernel.org>, Palmer Dabbelt <palmer@sifive.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>,
	Paul Moore <paul@paul-moore.com>,
	David Abdurachmanov <david.abdurachmanov@gmail.com>,
	linux-kernel@vger.kernel.org, Eric Paris <eparis@redhat.com>,
	Elvira Khabirova <lineprinter@altlinux.org>,
	linux-audit@redhat.com, linux-riscv@lists.infradead.org
Subject: [PATCH v2 13/15] riscv: define syscall_get_arch()
Date: Tue, 20 Nov 2018 03:16:40 +0300	[thread overview]
Message-ID: <20181120001640.GM11387@altlinux.org> (raw)
Message-ID: <20181120001640.LYve_PGyNh5pFpdd3kpPmGiYF8bKrdGu1ULU9aDFuZ0@z> (raw)
In-Reply-To: <20181120001128.GA11300@altlinux.org>

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.

Based-on-patch-by: David Abdurachmanov <david.abdurachmanov@gmail.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
---
v2: added Reviewed-by to [PATCH 12/13 v2]

 arch/riscv/include/asm/syscall.h | 10 ++++++++++
 include/uapi/linux/audit.h       |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h
index 8d25f8904c00..bba3da6ef157 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 +100,13 @@ 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)
+{
+#ifdef CONFIG_64BIT
+	return AUDIT_ARCH_RISCV64;
+#else
+	return AUDIT_ARCH_RISCV32;
+#endif
+}
+
 #endif	/* _ASM_RISCV_SYSCALL_H */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 205aa32d81ed..a97a29922de0 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -410,6 +410,8 @@ 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_RISCV32	(EM_RISCV|__AUDIT_ARCH_LE)
+#define AUDIT_ARCH_RISCV64	(EM_RISCV|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_S390		(EM_S390)
 #define AUDIT_ARCH_S390X	(EM_S390|__AUDIT_ARCH_64BIT)
 #define AUDIT_ARCH_SH		(EM_SH)
-- 
ldv

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  parent reply	other threads:[~2018-11-20  0:16 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20181107042751.3b519062@akathisia>
     [not found] ` <CALCETrV1v-DPRfDRwiH=xn29bxWxiHdZtAH1nw=dsmDtnT0YGQ@mail.gmail.com>
2018-11-09  3:13   ` [PATCH 00/13] Prepare for PTRACE_GET_SYSCALL_INFO Dmitry V. Levin
2018-11-09  3:13     ` Dmitry V. Levin
2018-11-09  3:17     ` [PATCH 12/13] riscv: define syscall_get_arch() Dmitry V. Levin
2018-11-09  3:17       ` Dmitry V. Levin
2018-11-09  6:59       ` David Abdurachmanov
2018-11-09  6:59         ` David Abdurachmanov
2018-11-09 22:28         ` Dmitry V. Levin
2018-11-09 22:28           ` Dmitry V. Levin
2018-11-10  5:12           ` David Abdurachmanov
2018-11-10  5:12             ` David Abdurachmanov
2018-11-10  9:27           ` Andreas Schwab
2018-11-10  9:27             ` Andreas Schwab
2018-11-09 18:45       ` Palmer Dabbelt
2018-11-09 18:45         ` Palmer Dabbelt
2018-11-09 21:31         ` Dmitry V. Levin
2018-11-09 21:31           ` Dmitry V. Levin
2018-11-09 22:48           ` [PATCH 12/13 v2] " Dmitry V. Levin
2018-11-09 22:48             ` Dmitry V. Levin
2018-11-11 21:21             ` Palmer Dabbelt
2018-11-11 21:21               ` Palmer Dabbelt
2018-11-09  6:06     ` [PATCH 00/13] Prepare for PTRACE_GET_SYSCALL_INFO Andy Lutomirski
2018-11-09  6:06       ` Andy Lutomirski
2018-11-20  0:11   ` [PATCH v2 00/15] " Dmitry V. Levin
2018-11-20  0:11     ` Dmitry V. Levin
2018-11-20  0:16     ` Dmitry V. Levin [this message]
2018-11-20  0:16       ` [PATCH v2 13/15] riscv: define syscall_get_arch() Dmitry V. Levin
2018-11-20 20:26     ` [PATCH v2 00/15] Prepare for PTRACE_GET_SYSCALL_INFO Paul Moore
2018-11-20 20:26       ` Paul Moore
2018-11-21  0:44     ` [PATCH v2 16/15] syscall_get_arch: add "struct task_struct *" argument Dmitry V. Levin
2018-11-21  0:44       ` Dmitry V. Levin
2018-11-21 15:15       ` Andy Lutomirski
2018-11-21 15:15         ` Andy Lutomirski
2018-11-21 15:47       ` Palmer Dabbelt
2018-11-21 15:47         ` Palmer Dabbelt
2018-11-21 18:40       ` Paul Burton
2018-11-21 18:40         ` Paul Burton
2018-11-21 19:00         ` Dmitry V. Levin
2018-11-21 19:00           ` Dmitry V. Levin
2018-11-21 19:35           ` [PATCH v2 16/15 v2] " Dmitry V. Levin
2018-11-21 19:35             ` Dmitry V. Levin
2018-11-21 19:45             ` Paul Burton
2018-11-21 19:45               ` Paul Burton
2018-11-27 10:34       ` [PATCH v2 16/15] " Michael Ellerman
2018-11-27 10:34         ` Michael Ellerman

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