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/asm-arm/asm/setup.h b/libc/kernel/uapi/asm-arm/asm/setup.h
index 0f2a18b..5fd2f20 100644
--- a/libc/kernel/uapi/asm-arm/asm/setup.h
+++ b/libc/kernel/uapi/asm-arm/asm/setup.h
@@ -23,133 +23,133 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define ATAG_NONE 0x00000000
 struct tag_header {
- __u32 size;
- __u32 tag;
+  __u32 size;
+  __u32 tag;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define ATAG_CORE 0x54410001
 struct tag_core {
- __u32 flags;
+  __u32 flags;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 pagesize;
- __u32 rootdev;
+  __u32 pagesize;
+  __u32 rootdev;
 };
 #define ATAG_MEM 0x54410002
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct tag_mem32 {
- __u32 size;
- __u32 start;
+  __u32 size;
+  __u32 start;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define ATAG_VIDEOTEXT 0x54410003
 struct tag_videotext {
- __u8 x;
- __u8 y;
+  __u8 x;
+  __u8 y;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u16 video_page;
- __u8 video_mode;
- __u8 video_cols;
- __u16 video_ega_bx;
+  __u16 video_page;
+  __u8 video_mode;
+  __u8 video_cols;
+  __u16 video_ega_bx;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u8 video_lines;
- __u8 video_isvga;
- __u16 video_points;
+  __u8 video_lines;
+  __u8 video_isvga;
+  __u16 video_points;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define ATAG_RAMDISK 0x54410004
 struct tag_ramdisk {
- __u32 flags;
- __u32 size;
+  __u32 flags;
+  __u32 size;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 start;
+  __u32 start;
 };
 #define ATAG_INITRD 0x54410005
 #define ATAG_INITRD2 0x54420005
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct tag_initrd {
- __u32 start;
- __u32 size;
+  __u32 start;
+  __u32 size;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define ATAG_SERIAL 0x54410006
 struct tag_serialnr {
- __u32 low;
- __u32 high;
+  __u32 low;
+  __u32 high;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define ATAG_REVISION 0x54410007
 struct tag_revision {
- __u32 rev;
+  __u32 rev;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define ATAG_VIDEOLFB 0x54410008
 struct tag_videolfb {
- __u16 lfb_width;
+  __u16 lfb_width;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u16 lfb_height;
- __u16 lfb_depth;
- __u16 lfb_linelength;
- __u32 lfb_base;
+  __u16 lfb_height;
+  __u16 lfb_depth;
+  __u16 lfb_linelength;
+  __u32 lfb_base;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 lfb_size;
- __u8 red_size;
- __u8 red_pos;
- __u8 green_size;
+  __u32 lfb_size;
+  __u8 red_size;
+  __u8 red_pos;
+  __u8 green_size;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u8 green_pos;
- __u8 blue_size;
- __u8 blue_pos;
- __u8 rsvd_size;
+  __u8 green_pos;
+  __u8 blue_size;
+  __u8 blue_pos;
+  __u8 rsvd_size;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u8 rsvd_pos;
+  __u8 rsvd_pos;
 };
 #define ATAG_CMDLINE 0x54410009
 struct tag_cmdline {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- char cmdline[1];
+  char cmdline[1];
 };
 #define ATAG_ACORN 0x41000101
 struct tag_acorn {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 memc_control_reg;
- __u32 vram_pages;
- __u8 sounddefault;
- __u8 adfsdrives;
+  __u32 memc_control_reg;
+  __u32 vram_pages;
+  __u8 sounddefault;
+  __u8 adfsdrives;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define ATAG_MEMCLK 0x41000402
 struct tag_memclk {
- __u32 fmemclk;
+  __u32 fmemclk;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct tag {
- struct tag_header hdr;
- union {
+  struct tag_header hdr;
+  union {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- struct tag_core core;
- struct tag_mem32 mem;
- struct tag_videotext videotext;
- struct tag_ramdisk ramdisk;
+    struct tag_core core;
+    struct tag_mem32 mem;
+    struct tag_videotext videotext;
+    struct tag_ramdisk ramdisk;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- struct tag_initrd initrd;
- struct tag_serialnr serialnr;
- struct tag_revision revision;
- struct tag_videolfb videolfb;
+    struct tag_initrd initrd;
+    struct tag_serialnr serialnr;
+    struct tag_revision revision;
+    struct tag_videolfb videolfb;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- struct tag_cmdline cmdline;
- struct tag_acorn acorn;
- struct tag_memclk memclk;
- } u;
+    struct tag_cmdline cmdline;
+    struct tag_acorn acorn;
+    struct tag_memclk memclk;
+  } u;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct tagtable {
- __u32 tag;
- int (*parse)(const struct tag *);
+  __u32 tag;
+  int(* parse) (const struct tag *);
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-#define tag_member_present(tag,member)   ((unsigned long)(&((struct tag *)0L)->member + 1)   <= (tag)->hdr.size * 4)
-#define tag_next(t) ((struct tag *)((__u32 *)(t) + (t)->hdr.size))
+#define tag_member_present(tag,member) ((unsigned long) (& ((struct tag *) 0L)->member + 1) <= (tag)->hdr.size * 4)
+#define tag_next(t) ((struct tag *) ((__u32 *) (t) + (t)->hdr.size))
 #define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define for_each_tag(t,base)   for (t = base; t->hdr.size; t = tag_next(t))
+#define for_each_tag(t,base) for(t = base; t->hdr.size; t = tag_next(t))
 #endif