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1# Copyright 2017 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4"""Helper functions to put user defined flags to mk/bp files"""
5
6from __future__ import print_function
7
8import config
9import os
10import subprocess
11
12
13# Find the makefile/blueprint based on the benchmark, and make a copy of
14# it for restoring later.
15def backup_file(bench, file_type):
16  mk_file = os.path.join(config.android_home, config.bench_dict[bench],
17                         'Android.' + file_type)
18  try:
19    # Make a copy of the makefile/blueprint so that we can recover it after
20    # building the benchmark
21    subprocess.check_call([
22        'cp', mk_file,
23        os.path.join(config.android_home, config.bench_dict[bench],
24                     'tmp_makefile')
25    ])
26  except subprocess.CalledProcessError():
27    raise OSError('Cannot backup Android.%s file for %s' % (file_type, bench))
28
29
30# Insert lines to add LOCAL_CFLAGS/LOCAL_LDFLAGS to the benchmarks
31# makefile/blueprint
32def replace_flags(bench, android_type, file_type, cflags, ldflags):
33  # Use format ["Flag1", "Flag2"] for bp file
34  if file_type == 'bp':
35    if cflags:
36      cflags = '\", \"'.join(cflags.split())
37    if ldflags:
38      ldflags = '\", \"'.join(ldflags.split())
39
40  if not cflags:
41    cflags = ''
42  else:
43    cflags = '\"' + cflags + '\",'
44  if not ldflags:
45    ldflags = ''
46  else:
47    ldflags = '\"' + ldflags + '\",'
48
49  # Two different diffs are used for aosp or internal android repo.
50  if android_type == 'aosp':
51    bench_diff = bench + '_flags_aosp.diff'
52  else:
53    bench_diff = bench + '_flags_internal.diff'
54
55  # Replace CFLAGS_FOR_BENCH_SUITE marker with proper cflags
56  output = ''
57  with open(bench_diff) as f:
58    for line in f:
59      line = line.replace('CFLAGS_FOR_BENCH_SUITE', cflags)
60      line = line.replace('LDFLAGS_FOR_BENCH_SUITE', ldflags)
61      output += line
62
63  with open('modified.diff', 'w') as f:
64    f.write(output)
65
66
67def apply_patches(bench):
68  bench_dir = os.path.join(config.android_home, config.bench_dict[bench])
69  bench_diff = 'modified.diff'
70  flags_patch = os.path.join(
71      os.path.dirname(os.path.realpath(__file__)), bench_diff)
72  try:
73    subprocess.check_call(['git', '-C', bench_dir, 'apply', flags_patch])
74  except subprocess.CalledProcessError:
75    raise OSError('Patch for adding flags for %s does not succeed.' % (bench))
76
77
78def replace_flags_in_dir(bench, cflags, ldflags):
79  bench_mk = os.path.join(config.android_home, config.bench_dict[bench],
80                          'Android.mk')
81
82  if not cflags:
83    cflags = ''
84  if not ldflags:
85    ldflags = ''
86
87  output = ''
88  with open(bench_mk) as f:
89    for line in f:
90      line = line.replace('$(CFLAGS_FOR_BENCH_SUITE)', cflags)
91      line = line.replace('$(LDFLAGS_FOR_BENCH_SUITE)', ldflags)
92      output += line
93  with open(bench_mk, 'w') as f:
94    f.write(output)
95
96
97def add_flags_Panorama(cflags, ldflags):
98  backup_file('Panorama', 'mk')
99  replace_flags_in_dir('Panorama', cflags, ldflags)
100
101
102def add_flags_Synthmark(cflags, ldflags):
103  backup_file('Synthmark', 'mk')
104  replace_flags_in_dir('Synthmark', cflags, ldflags)
105
106
107def add_flags_Skia(cflags, ldflags):
108  backup_file('Skia', 'bp')
109  replace_flags('Skia', config.android_type, 'bp', cflags, ldflags)
110  apply_patches('Skia')
111
112
113def add_flags_Binder(cflags, ldflags):
114  backup_file('Binder', 'bp')
115  replace_flags('Binder', config.android_type, 'bp', cflags, ldflags)
116  apply_patches('Binder')
117
118
119def add_flags_Hwui(cflags, ldflags):
120  backup_file('Hwui', 'bp')
121  replace_flags('Hwui', config.android_type, 'bp', cflags, ldflags)
122  apply_patches('Hwui')
123
124
125def add_flags_Dex2oat(cflags, ldflags):
126  backup_file('Dex2oat', 'bp')
127  replace_flags('Dex2oat', config.android_type, 'bp', cflags, ldflags)
128  apply_patches('Dex2oat')
129