Fix generation of event labels for getevent.

$(LOCAL_PATH)/getevent.c: $(intermediates)/input.h-labels.h

UAPI_INPUT_EVENT_CODES_H := bionic/libc/kernel/uapi/linux/input-event-codes.h

INPUT_H_LABELS_H := $(intermediates)/input.h-labels.h

$(INPUT_H_LABELS_H): PRIVATE_LOCAL_PATH := $(LOCAL_PATH)

$(INPUT_H_LABELS_H): PRIVATE_CUSTOM_TOOL = $(PRIVATE_LOCAL_PATH)/generate-input.h-labels.py > $@

$(INPUT_H_LABELS_H): $(LOCAL_PATH)/Android.mk $(LOCAL_PATH)/generate-input.h-labels.py

# The PRIVATE_CUSTOM_TOOL line uses = to evaluate the output path late.

# We copy the input path so it can't be accidentally modified later.

$(INPUT_H_LABELS_H): PRIVATE_UAPI_INPUT_EVENT_CODES_H := $(UAPI_INPUT_EVENT_CODES_H)

$(INPUT_H_LABELS_H): PRIVATE_CUSTOM_TOOL = $(PRIVATE_LOCAL_PATH)/generate-input.h-labels.py $(PRIVATE_UAPI_INPUT_EVENT_CODES_H) > $@

# The dependency line though gets evaluated now, so the PRIVATE_ copy doesn't exist yet,

# and the original can't yet have been modified, so this is both sufficient and necessary.

$(INPUT_H_LABELS_H): $(LOCAL_PATH)/Android.mk $(LOCAL_PATH)/generate-input.h-labels.py $(UAPI_INPUT_EVENT_CODES_H)

$(INPUT_H_LABELS_H):

	$(transform-generated-source)

import os

import re

import sys

input_prop_list = []

ev_list = []

r = re.compile(r'#define\s+(\S+)\s+((?:0x)?\d+)')

with open('bionic/libc/kernel/uapi/linux/input.h', 'r') as f:

with open(sys.argv[1], 'r') as f:

  for line in f:

    m = r.match(line)

    if m: