sh: Enable seccomp architecture tracking

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@illinois.edu>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/61ae084cd4783b9b50860d9dedb4a348cf1b7b6f.1605101222.git.yifeifz2@illinois.edu

diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
index 54111e4..d457839 100644 (file)
--- 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              __AUDIT_ARCH_LE
+#else
+#define __SECCOMP_ARCH_LE              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 */