Switch kernel header parsing to python libclang

Replace the tokenizer in cpp.py with libclang.

Bug: 18937958
Change-Id: I27630904c6d2849418cd5ca3d3c612ec3078686d
diff --git a/libc/kernel/uapi/linux/bfs_fs.h b/libc/kernel/uapi/linux/bfs_fs.h
index 75fde77..e2e0615 100644
--- a/libc/kernel/uapi/linux/bfs_fs.h
+++ b/libc/kernel/uapi/linux/bfs_fs.h
@@ -21,7 +21,7 @@
 #include <linux/types.h>
 #define BFS_BSIZE_BITS 9
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define BFS_BSIZE (1<<BFS_BSIZE_BITS)
+#define BFS_BSIZE (1 << BFS_BSIZE_BITS)
 #define BFS_MAGIC 0x1BADFACE
 #define BFS_ROOT_INO 2
 #define BFS_INODES_PER_BLOCK 8
@@ -29,55 +29,55 @@
 #define BFS_VDIR 2L
 #define BFS_VREG 1L
 struct bfs_inode {
- __le16 i_ino;
+  __le16 i_ino;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u16 i_unused;
- __le32 i_sblock;
- __le32 i_eblock;
- __le32 i_eoffset;
+  __u16 i_unused;
+  __le32 i_sblock;
+  __le32 i_eblock;
+  __le32 i_eoffset;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __le32 i_vtype;
- __le32 i_mode;
- __le32 i_uid;
- __le32 i_gid;
+  __le32 i_vtype;
+  __le32 i_mode;
+  __le32 i_uid;
+  __le32 i_gid;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __le32 i_nlink;
- __le32 i_atime;
- __le32 i_mtime;
- __le32 i_ctime;
+  __le32 i_nlink;
+  __le32 i_atime;
+  __le32 i_mtime;
+  __le32 i_ctime;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 i_padding[4];
+  __u32 i_padding[4];
 };
 #define BFS_NAMELEN 14
 #define BFS_DIRENT_SIZE 16
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define BFS_DIRS_PER_BLOCK 32
 struct bfs_dirent {
- __le16 ino;
- char name[BFS_NAMELEN];
+  __le16 ino;
+  char name[BFS_NAMELEN];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct bfs_super_block {
- __le32 s_magic;
- __le32 s_start;
+  __le32 s_magic;
+  __le32 s_start;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __le32 s_end;
- __le32 s_from;
- __le32 s_to;
- __s32 s_bfrom;
+  __le32 s_end;
+  __le32 s_from;
+  __le32 s_to;
+  __s32 s_bfrom;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __s32 s_bto;
- char s_fsname[6];
- char s_volume[6];
- __u32 s_padding[118];
+  __s32 s_bto;
+  char s_fsname[6];
+  char s_volume[6];
+  __u32 s_padding[118];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-#define BFS_OFF2INO(offset)   ((((offset) - BFS_BSIZE) / sizeof(struct bfs_inode)) + BFS_ROOT_INO)
-#define BFS_INO2OFF(ino)   ((__u32)(((ino) - BFS_ROOT_INO) * sizeof(struct bfs_inode)) + BFS_BSIZE)
-#define BFS_NZFILESIZE(ip)   ((le32_to_cpu((ip)->i_eoffset) + 1) - le32_to_cpu((ip)->i_sblock) * BFS_BSIZE)
+#define BFS_OFF2INO(offset) ((((offset) - BFS_BSIZE) / sizeof(struct bfs_inode)) + BFS_ROOT_INO)
+#define BFS_INO2OFF(ino) ((__u32) (((ino) - BFS_ROOT_INO) * sizeof(struct bfs_inode)) + BFS_BSIZE)
+#define BFS_NZFILESIZE(ip) ((le32_to_cpu((ip)->i_eoffset) + 1) - le32_to_cpu((ip)->i_sblock) * BFS_BSIZE)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define BFS_FILESIZE(ip)   ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip))
-#define BFS_FILEBLOCKS(ip)   ((ip)->i_sblock == 0 ? 0 : (le32_to_cpu((ip)->i_eblock) + 1) - le32_to_cpu((ip)->i_sblock))
-#define BFS_UNCLEAN(bfs_sb, sb)   ((le32_to_cpu(bfs_sb->s_from) != -1) && (le32_to_cpu(bfs_sb->s_to) != -1) && !(sb->s_flags & MS_RDONLY))
+#define BFS_FILESIZE(ip) ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip))
+#define BFS_FILEBLOCKS(ip) ((ip)->i_sblock == 0 ? 0 : (le32_to_cpu((ip)->i_eblock) + 1) - le32_to_cpu((ip)->i_sblock))
+#define BFS_UNCLEAN(bfs_sb,sb) ((le32_to_cpu(bfs_sb->s_from) != - 1) && (le32_to_cpu(bfs_sb->s_to) != - 1) && ! (sb->s_flags & MS_RDONLY))
 #endif
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */