gecko-dev/config/create_res.py
Mike Hommey 527e667296 Bug 1537703 - Use llvm-rc instead of rc.exe. r=mhentges,froydnj
This makes us use one less tool from MSVC, and removes one more use of wine
in cross builds.

We replace the call to either rc/llvm-rc or windres with a wrapper script.
While the script is not strictly needed for the latter, we use a wrapper
in that case anyway because it's one step towards fixing bug 1498414.
For llvm-rc, however, we need a wrapper because llvm-rc doesn't preprocess
on its own, so the wrapper does that too.

The wrapper script also allows to deal with the default flags passed to
llvm-rc or windres, rather than inherit them from old-configure.

We also need to explicitly pass the codepage to llvm-rc, which was not
necessary with rc (presumably, llvm-rc has a different default).

While here, remove the unused WINDRES subst from js/src/old-configure.in.
Also, while here, we remove --use-temp-file, because as described in the
linked bug and in the windres manual page, it was used to work around bugs
on Windows 98 and earlier.

Differential Revision: https://phabricator.services.mozilla.com/D86312
2020-08-08 21:02:04 +00:00

94 lines
3.0 KiB
Python

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from argparse import (
Action,
ArgumentParser,
)
import os
import subprocess
import sys
import tempfile
import buildconfig
class CPPFlag(Action):
all_flags = []
def __call__(self, parser, namespace, values, option_string=None):
if 'windres' in buildconfig.substs['RC'].lower():
if option_string == '-U':
return
if option_string == '-I':
option_string = '--include-dir'
self.all_flags.extend((option_string, values))
def generate_res():
parser = ArgumentParser()
parser.add_argument('-D', action=CPPFlag, metavar='VAR[=VAL]', help='Define a variable')
parser.add_argument('-U', action=CPPFlag, metavar='VAR', help='Undefine a variable')
parser.add_argument('-I', action=CPPFlag, metavar='DIR', help='Search path for includes')
parser.add_argument('-o', dest='output', metavar='OUTPUT', help='Output file')
parser.add_argument('input', help='Input file')
args = parser.parse_args()
is_windres = 'windres' in buildconfig.substs['RC'].lower()
verbose = os.environ.get('BUILD_VERBOSE_LOG')
# llvm-rc doesn't preprocess on its own, so preprocess manually
# Theoretically, not windres could be rc.exe, but configure won't use it
# unless you really ask for it, and it will still work with preprocessed
# output.
try:
if not is_windres:
fd, path = tempfile.mkstemp(suffix='.rc')
command = buildconfig.substs['CXXCPP'] + CPPFlag.all_flags
command.extend(('-DRC_INVOKED', args.input))
if verbose:
print('Executing:', ' '.join(command))
with os.fdopen(fd, 'wb') as fh:
retcode = subprocess.run(command, stdout=fh).returncode
if retcode:
# Rely on the subprocess printing out any relevant error
return retcode
else:
path = args.input
command = [buildconfig.substs['RC']]
if is_windres:
command.extend(('-O', 'coff'))
# Even though llvm-rc doesn't preprocess, we still need to pass at least
# the -I flags.
command.extend(CPPFlag.all_flags)
if args.output:
if is_windres:
command.extend(('-o', args.output))
else:
# Use win1252 code page for the input.
command.extend(('-c', '1252', '-Fo' + args.output))
command.append(path)
if verbose:
print('Executing:', ' '.join(command))
retcode = subprocess.run(command).returncode
if retcode:
# Rely on the subprocess printing out any relevant error
return retcode
finally:
if path != args.input:
os.remove(path)
return 0
if __name__ == '__main__':
sys.exit(generate_res())