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Subject[PATCH seccomp v2 3/8] powerpc: Enable seccomp architecture tracking
Date
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.

__LITTLE_ENDIAN__ is used here instead of CONFIG_CPU_LITTLE_ENDIAN
to keep it consistent with asm/syscall.h.

Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu>
---
arch/powerpc/include/asm/seccomp.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
index 51209f6071c5..ac2033f134f0 100644
--- a/arch/powerpc/include/asm/seccomp.h
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -8,4 +8,27 @@

#include <asm-generic/seccomp.h>

+#ifdef __LITTLE_ENDIAN__
+#define __SECCOMP_ARCH_LE __AUDIT_ARCH_LE
+#define __SECCOMP_ARCH_LE_NAME "le"
+#else
+#define __SECCOMP_ARCH_LE 0
+#define __SECCOMP_ARCH_LE_NAME
+#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" __SECCOMP_ARCH_LE_NAME
+# 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 "ppc" __SECCOMP_ARCH_LE_NAME
+# 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 "ppc" __SECCOMP_ARCH_LE_NAME
+#endif
+
#endif /* _ASM_POWERPC_SECCOMP_H */
--
2.29.2
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