linux-kernel - [PATCH seccomp 6/8] sh: Enable seccomp architecture tracking

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Message-Id: <46d7f8d02bdaadf364a59db2d60f43466227b3af.1604410035.git.yifeifz2@illinois.edu>
Date:   Tue,  3 Nov 2020 07:43:02 -0600
From:   YiFei Zhu <zhuyifei1999@...il.com>
To:     containers@...ts.linux-foundation.org
Cc:     YiFei Zhu <yifeifz2@...inois.edu>, linux-csky@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, linux-xtensa@...ux-xtensa.org,
        linux-kernel@...r.kernel.org, Aleksa Sarai <cyphar@...har.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andy Lutomirski <luto@...capital.net>,
        David Laight <David.Laight@...lab.com>,
        Dimitrios Skarlatos <dskarlat@...cmu.edu>,
        Giuseppe Scrivano <gscrivan@...hat.com>,
        Hubertus Franke <frankeh@...ibm.com>,
        Jack Chen <jianyan2@...inois.edu>,
        Jann Horn <jannh@...gle.com>,
        Josep Torrellas <torrella@...inois.edu>,
        Kees Cook <keescook@...omium.org>,
        Tianyin Xu <tyxu@...inois.edu>,
        Tobin Feldman-Fitzthum <tobin@....com>,
        Tycho Andersen <tycho@...ho.pizza>,
        Valentin Rothberg <vrothber@...hat.com>,
        Will Drewry <wad@...omium.org>
Subject: [PATCH seccomp 6/8] sh: Enable seccomp architecture tracking

From: YiFei Zhu <yifeifz2@...inois.edu>

To enable seccomp constant action bitmaps, we need to have a static
mapping to the audit architecture and system call table size. Add these
for sh.

Signed-off-by: YiFei Zhu <yifeifz2@...inois.edu>
---
 arch/sh/include/asm/seccomp.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
index 54111e4d32b8..b8d169292a34 100644
--- a/arch/sh/include/asm/seccomp.h
+++ b/arch/sh/include/asm/seccomp.h
@@ -8,4 +8,14 @@
 #define __NR_seccomp_exit __NR_exit
 #define __NR_seccomp_sigreturn __NR_rt_sigreturn
 
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+#define __SECCOMP_ARCH_LE_BIT		__AUDIT_ARCH_LE
+#else
+#define __SECCOMP_ARCH_LE_BIT		0
+#endif
+
+#define SECCOMP_ARCH_NATIVE		(AUDIT_ARCH_SH | __SECCOMP_ARCH_LE)
+#define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
+#define SECCOMP_ARCH_NATIVE_NAME	"sh"
+
 #endif /* __ASM_SECCOMP_H */
-- 
2.29.2