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From:   YiFei Zhu <zhuyifei1999@gmail.com>
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Subject: [PATCH seccomp 3/8] powerpc: Enable seccomp architecture tracking
Date:   Tue,  3 Nov 2020 07:42:59 -0600
Message-Id: <4ec2970fcc819eb4d5dac2bd35233ccdadfda845.1604410035.git.yifeifz2@illinois.edu>
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From: YiFei Zhu <yifeifz2@illinois.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 powerpc.

Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu>
---
 arch/powerpc/include/asm/seccomp.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
index 51209f6071c5..3efcc83e9cc6 100644
--- a/arch/powerpc/include/asm/seccomp.h
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -8,4 +8,25 @@
 
 #include <asm-generic/seccomp.h>
 
+#ifdef __LITTLE_ENDIAN__
+#define __SECCOMP_ARCH_LE_BIT		__AUDIT_ARCH_LE
+#else
+#define __SECCOMP_ARCH_LE_BIT		0
+#endif
+
+#ifdef CONFIG_PPC64
+# define SECCOMP_ARCH_NATIVE		(AUDIT_ARCH_PPC64 | __SECCOMP_ARCH_LE)
+# define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME	"ppc64"
+# ifdef CONFIG_COMPAT
+#  define SECCOMP_ARCH_COMPAT		(AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
+#  define SECCOMP_ARCH_COMPAT_NR	NR_syscalls
+#  define SECCOMP_ARCH_COMPAT_NAME	"powerpc"
+# endif
+#else /* !CONFIG_PPC64 */
+# define SECCOMP_ARCH_NATIVE		(AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE)
+# define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME	"powerpc"
+#endif
+
 #endif	/* _ASM_POWERPC_SECCOMP_H */
-- 
2.29.2