minijail: extract ARCH_NR definition to a header, fix indentation.
BUG=chromium:416890
TEST=syscall_filter_unittest passes.
Change-Id: I0cec225e0276f786fc44a05e3dff2080866f3c49
Reviewed-on: https://chromium-review.googlesource.com/220188
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
diff --git a/arch.h b/arch.h
new file mode 100644
index 0000000..cfe6122
--- /dev/null
+++ b/arch.h
@@ -0,0 +1,63 @@
+/* arch.h
+ * Copyright 2014 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * ARCH_NR #define's.
+ */
+
+#ifndef ARCH_H
+#define ARCH_H
+
+#include <linux/audit.h>
+
+#if defined(__i386__)
+# define ARCH_NR AUDIT_ARCH_I386
+#elif defined(__x86_64__)
+# define ARCH_NR AUDIT_ARCH_X86_64
+#elif defined(__arm__)
+/*
+ * <linux/audit.h> includes <linux/elf-em.h>, which does not define EM_ARM.
+ * <linux/elf.h> only includes <asm/elf.h> if we're in the kernel.
+ */
+# ifndef EM_ARM
+# define EM_ARM 40
+# endif
+# define ARCH_NR AUDIT_ARCH_ARM
+#elif defined(__hppa__)
+# define ARCH_NR AUDIT_ARCH_PARISC
+#elif defined(__ia64__)
+# define ARCH_NR AUDIT_ARCH_IA64
+#elif defined(__mips__)
+# if defined(__mips64)
+# if defined(__MIPSEB__)
+# define ARCH_NR AUDIT_ARCH_MIPS64
+# else
+# define ARCH_NR AUDIT_ARCH_MIPSEL64
+# endif
+# else
+# if defined(__MIPSEB__)
+# define ARCH_NR AUDIT_ARCH_MIPS
+# else
+# define ARCH_NR AUDIT_ARCH_MIPSEL
+# endif
+# endif
+#elif defined(__powerpc64__)
+# define ARCH_NR AUDIT_ARCH_PPC64
+#elif defined(__powerpc__)
+# define ARCH_NR AUDIT_ARCH_PPC
+#elif defined(__s390x__)
+# define ARCH_NR AUDIT_ARCH_S390X
+#elif defined(__s390__)
+# define ARCH_NR AUDIT_ARCH_S390
+#elif defined(__sparc__)
+# if defined(__arch64__)
+# define AUDIT_ARCH_SPARC64
+# else
+# define AUDIT_ARCH_SPARC
+# endif
+#else
+# error "AUDIT_ARCH value unavailable"
+#endif
+
+#endif /* ARCH_H */