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/drm/nouveau_drm.h b/libc/kernel/uapi/drm/nouveau_drm.h
index d6d470f..29248a0 100644
--- a/libc/kernel/uapi/drm/nouveau_drm.h
+++ b/libc/kernel/uapi/drm/nouveau_drm.h
@@ -37,38 +37,38 @@
 #define NOUVEAU_GEM_TILE_NONCONTIG 0x00000008
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct drm_nouveau_gem_info {
- uint32_t handle;
- uint32_t domain;
- uint64_t size;
+  uint32_t handle;
+  uint32_t domain;
+  uint64_t size;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint64_t offset;
- uint64_t map_handle;
- uint32_t tile_mode;
- uint32_t tile_flags;
+  uint64_t offset;
+  uint64_t map_handle;
+  uint32_t tile_mode;
+  uint32_t tile_flags;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct drm_nouveau_gem_new {
- struct drm_nouveau_gem_info info;
- uint32_t channel_hint;
+  struct drm_nouveau_gem_info info;
+  uint32_t channel_hint;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t align;
+  uint32_t align;
 };
 #define NOUVEAU_GEM_MAX_BUFFERS 1024
 struct drm_nouveau_gem_pushbuf_bo_presumed {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t valid;
- uint32_t domain;
- uint64_t offset;
+  uint32_t valid;
+  uint32_t domain;
+  uint64_t offset;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct drm_nouveau_gem_pushbuf_bo {
- uint64_t user_priv;
- uint32_t handle;
- uint32_t read_domains;
+  uint64_t user_priv;
+  uint32_t handle;
+  uint32_t read_domains;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t write_domains;
- uint32_t valid_domains;
- struct drm_nouveau_gem_pushbuf_bo_presumed presumed;
+  uint32_t write_domains;
+  uint32_t valid_domains;
+  struct drm_nouveau_gem_pushbuf_bo_presumed presumed;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NOUVEAU_GEM_RELOC_LOW (1 << 0)
@@ -77,51 +77,51 @@
 #define NOUVEAU_GEM_MAX_RELOCS 1024
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct drm_nouveau_gem_pushbuf_reloc {
- uint32_t reloc_bo_index;
- uint32_t reloc_bo_offset;
- uint32_t bo_index;
+  uint32_t reloc_bo_index;
+  uint32_t reloc_bo_offset;
+  uint32_t bo_index;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t flags;
- uint32_t data;
- uint32_t vor;
- uint32_t tor;
+  uint32_t flags;
+  uint32_t data;
+  uint32_t vor;
+  uint32_t tor;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define NOUVEAU_GEM_MAX_PUSH 512
 struct drm_nouveau_gem_pushbuf_push {
- uint32_t bo_index;
+  uint32_t bo_index;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t pad;
- uint64_t offset;
- uint64_t length;
+  uint32_t pad;
+  uint64_t offset;
+  uint64_t length;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct drm_nouveau_gem_pushbuf {
- uint32_t channel;
- uint32_t nr_buffers;
- uint64_t buffers;
+  uint32_t channel;
+  uint32_t nr_buffers;
+  uint64_t buffers;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t nr_relocs;
- uint32_t nr_push;
- uint64_t relocs;
- uint64_t push;
+  uint32_t nr_relocs;
+  uint32_t nr_push;
+  uint64_t relocs;
+  uint64_t push;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t suffix0;
- uint32_t suffix1;
- uint64_t vram_available;
- uint64_t gart_available;
+  uint32_t suffix0;
+  uint32_t suffix1;
+  uint64_t vram_available;
+  uint64_t gart_available;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define NOUVEAU_GEM_CPU_PREP_NOWAIT 0x00000001
 #define NOUVEAU_GEM_CPU_PREP_WRITE 0x00000004
 struct drm_nouveau_gem_cpu_prep {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t handle;
- uint32_t flags;
+  uint32_t handle;
+  uint32_t flags;
 };
 struct drm_nouveau_gem_cpu_fini {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- uint32_t handle;
+  uint32_t handle;
 };
 #define DRM_NOUVEAU_GETPARAM 0x00
 #define DRM_NOUVEAU_SETPARAM 0x01
@@ -142,8 +142,8 @@
 #define DRM_IOCTL_NOUVEAU_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_NEW, struct drm_nouveau_gem_new)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DRM_IOCTL_NOUVEAU_GEM_PUSHBUF DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_PUSHBUF, struct drm_nouveau_gem_pushbuf)
-#define DRM_IOCTL_NOUVEAU_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_PREP, struct drm_nouveau_gem_cpu_prep)
-#define DRM_IOCTL_NOUVEAU_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_FINI, struct drm_nouveau_gem_cpu_fini)
+#define DRM_IOCTL_NOUVEAU_GEM_CPU_PREP DRM_IOW(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_PREP, struct drm_nouveau_gem_cpu_prep)
+#define DRM_IOCTL_NOUVEAU_GEM_CPU_FINI DRM_IOW(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_CPU_FINI, struct drm_nouveau_gem_cpu_fini)
 #define DRM_IOCTL_NOUVEAU_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_NOUVEAU_GEM_INFO, struct drm_nouveau_gem_info)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif