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63 lines
1.9 KiB
63 lines
1.9 KiB
#!/usr/bin/python2 |
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"""Prototype compiler wrapper. |
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Only tested with: gcc, g++, clang, clang++ |
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Installation instructions: |
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1. Rename compiler from <compiler_name> to <compiler_name>.real |
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2. Create symlink from this script (compiler_wrapper.py), and name it |
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<compiler_name>. compiler_wrapper.py can live anywhere as long as it is |
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executable. |
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Reference page: |
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https://sites.google.com/a/google.com/chromeos-toolchain-team-home2/home/team-tools-and-scripts/bisecting-chromeos-compiler-problems/bisection-compiler-wrapper |
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Design doc: |
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https://docs.google.com/document/d/1yDgaUIa2O5w6dc3sSTe1ry-1ehKajTGJGQCbyn0fcEM |
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""" |
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from __future__ import print_function |
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import os |
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import shlex |
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import sys |
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import bisect_driver |
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WRAPPED = '%s.real' % sys.argv[0] |
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BISECT_STAGE = os.environ.get('BISECT_STAGE') |
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DEFAULT_BISECT_DIR = os.path.expanduser('~/ANDROID_BISECT') |
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BISECT_DIR = os.environ.get('BISECT_DIR') or DEFAULT_BISECT_DIR |
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def ProcessArgFile(arg_file): |
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args = [] |
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# Read in entire file at once and parse as if in shell |
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with open(arg_file, 'rb') as f: |
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args.extend(shlex.split(f.read())) |
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return args |
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def Main(_): |
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if not os.path.islink(sys.argv[0]): |
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print("Compiler wrapper can't be called directly!") |
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return 1 |
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execargs = [WRAPPED] + sys.argv[1:] |
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if BISECT_STAGE not in bisect_driver.VALID_MODES or '-o' not in execargs: |
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os.execv(WRAPPED, [WRAPPED] + sys.argv[1:]) |
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# Handle @file argument syntax with compiler |
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for idx, _ in enumerate(execargs): |
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# @file can be nested in other @file arguments, use While to re-evaluate |
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# the first argument of the embedded file. |
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while execargs[idx][0] == '@': |
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args_in_file = ProcessArgFile(execargs[idx][1:]) |
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execargs = execargs[0:idx] + args_in_file + execargs[idx + 1:] |
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bisect_driver.bisect_driver(BISECT_STAGE, BISECT_DIR, execargs) |
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if __name__ == '__main__': |
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sys.exit(Main(sys.argv[1:]))
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