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/blktrace_api.h b/libc/kernel/uapi/linux/blktrace_api.h
index d8417bc..aacee15 100644
--- a/libc/kernel/uapi/linux/blktrace_api.h
+++ b/libc/kernel/uapi/linux/blktrace_api.h
@@ -21,60 +21,60 @@
 #include <linux/types.h>
 enum blktrace_cat {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- BLK_TC_READ = 1 << 0,
- BLK_TC_WRITE = 1 << 1,
- BLK_TC_FLUSH = 1 << 2,
- BLK_TC_SYNC = 1 << 3,
+  BLK_TC_READ = 1 << 0,
+  BLK_TC_WRITE = 1 << 1,
+  BLK_TC_FLUSH = 1 << 2,
+  BLK_TC_SYNC = 1 << 3,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- BLK_TC_SYNCIO = BLK_TC_SYNC,
- BLK_TC_QUEUE = 1 << 4,
- BLK_TC_REQUEUE = 1 << 5,
- BLK_TC_ISSUE = 1 << 6,
+  BLK_TC_SYNCIO = BLK_TC_SYNC,
+  BLK_TC_QUEUE = 1 << 4,
+  BLK_TC_REQUEUE = 1 << 5,
+  BLK_TC_ISSUE = 1 << 6,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- BLK_TC_COMPLETE = 1 << 7,
- BLK_TC_FS = 1 << 8,
- BLK_TC_PC = 1 << 9,
- BLK_TC_NOTIFY = 1 << 10,
+  BLK_TC_COMPLETE = 1 << 7,
+  BLK_TC_FS = 1 << 8,
+  BLK_TC_PC = 1 << 9,
+  BLK_TC_NOTIFY = 1 << 10,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- BLK_TC_AHEAD = 1 << 11,
- BLK_TC_META = 1 << 12,
- BLK_TC_DISCARD = 1 << 13,
- BLK_TC_DRV_DATA = 1 << 14,
+  BLK_TC_AHEAD = 1 << 11,
+  BLK_TC_META = 1 << 12,
+  BLK_TC_DISCARD = 1 << 13,
+  BLK_TC_DRV_DATA = 1 << 14,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- BLK_TC_FUA = 1 << 15,
- BLK_TC_END = 1 << 15,
+  BLK_TC_FUA = 1 << 15,
+  BLK_TC_END = 1 << 15,
 };
 #define BLK_TC_SHIFT (16)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT)
 enum blktrace_act {
- __BLK_TA_QUEUE = 1,
- __BLK_TA_BACKMERGE,
+  __BLK_TA_QUEUE = 1,
+  __BLK_TA_BACKMERGE,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __BLK_TA_FRONTMERGE,
- __BLK_TA_GETRQ,
- __BLK_TA_SLEEPRQ,
- __BLK_TA_REQUEUE,
+  __BLK_TA_FRONTMERGE,
+  __BLK_TA_GETRQ,
+  __BLK_TA_SLEEPRQ,
+  __BLK_TA_REQUEUE,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __BLK_TA_ISSUE,
- __BLK_TA_COMPLETE,
- __BLK_TA_PLUG,
- __BLK_TA_UNPLUG_IO,
+  __BLK_TA_ISSUE,
+  __BLK_TA_COMPLETE,
+  __BLK_TA_PLUG,
+  __BLK_TA_UNPLUG_IO,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __BLK_TA_UNPLUG_TIMER,
- __BLK_TA_INSERT,
- __BLK_TA_SPLIT,
- __BLK_TA_BOUNCE,
+  __BLK_TA_UNPLUG_TIMER,
+  __BLK_TA_INSERT,
+  __BLK_TA_SPLIT,
+  __BLK_TA_BOUNCE,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __BLK_TA_REMAP,
- __BLK_TA_ABORT,
- __BLK_TA_DRV_DATA,
+  __BLK_TA_REMAP,
+  __BLK_TA_ABORT,
+  __BLK_TA_DRV_DATA,
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 enum blktrace_notify {
- __BLK_TN_PROCESS = 0,
- __BLK_TN_TIMESTAMP,
- __BLK_TN_MESSAGE,
+  __BLK_TN_PROCESS = 0,
+  __BLK_TN_TIMESTAMP,
+  __BLK_TN_MESSAGE,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define BLK_TA_QUEUE (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
@@ -86,7 +86,7 @@
 #define BLK_TA_REQUEUE (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))
 #define BLK_TA_ISSUE (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define BLK_TA_COMPLETE (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))
+#define BLK_TA_COMPLETE (__BLK_TA_COMPLETE | BLK_TC_ACT(BLK_TC_COMPLETE))
 #define BLK_TA_PLUG (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE))
 #define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))
 #define BLK_TA_UNPLUG_TIMER (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE))
@@ -106,44 +106,44 @@
 #define BLK_IO_TRACE_VERSION 0x07
 struct blk_io_trace {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 magic;
- __u32 sequence;
- __u64 time;
- __u64 sector;
+  __u32 magic;
+  __u32 sequence;
+  __u64 time;
+  __u64 sector;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 bytes;
- __u32 action;
- __u32 pid;
- __u32 device;
+  __u32 bytes;
+  __u32 action;
+  __u32 pid;
+  __u32 device;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 cpu;
- __u16 error;
- __u16 pdu_len;
+  __u32 cpu;
+  __u16 error;
+  __u16 pdu_len;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct blk_io_trace_remap {
- __be32 device_from;
- __be32 device_to;
- __be64 sector_from;
+  __be32 device_from;
+  __be32 device_to;
+  __be64 sector_from;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 enum {
- Blktrace_setup = 1,
- Blktrace_running,
+  Blktrace_setup = 1,
+  Blktrace_running,
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- Blktrace_stopped,
+  Blktrace_stopped,
 };
 #define BLKTRACE_BDEV_SIZE 32
 struct blk_user_trace_setup {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- char name[BLKTRACE_BDEV_SIZE];
- __u16 act_mask;
- __u32 buf_size;
- __u32 buf_nr;
+  char name[BLKTRACE_BDEV_SIZE];
+  __u16 act_mask;
+  __u32 buf_size;
+  __u32 buf_nr;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u64 start_lba;
- __u64 end_lba;
- __u32 pid;
+  __u64 start_lba;
+  __u64 end_lba;
+  __u32 pid;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif