forked from mirrors/gecko-dev
8cd16bb55b
MozReview-Commit-ID: ETzx4HsjbEF --HG-- extra : rebase_source : 7e27a4cfe2bb358d513a18a33c245bcc6d559c46
49 lines
1.9 KiB
Python
Executable file
49 lines
1.9 KiB
Python
Executable file
#!/usr/bin/python
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Usage: pgomerge.py <binary basename> <dist/bin>
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# Gathers .pgc files from dist/bin and merges them into
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# $PWD/$basename.pgd using pgomgr, then deletes them.
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# No errors if any of these files don't exist.
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import sys
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import os
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import os.path
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import subprocess
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if not sys.platform == "win32":
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raise Exception("This script was only meant for Windows.")
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def MergePGOFiles(basename, pgddir, pgcdir):
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"""Merge pgc files produced from an instrumented binary
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into the pgd file for the second pass of profile-guided optimization
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with MSVC. |basename| is the name of the DLL or EXE without the
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extension. |pgddir| is the path that contains <basename>.pgd
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(should be the objdir it was built in). |pgcdir| is the path
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containing basename!N.pgc files, which is probably dist/bin.
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Calls pgomgr to merge each pgc file into the pgd, then deletes
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the pgc files."""
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if not os.path.isdir(pgddir) or not os.path.isdir(pgcdir):
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return
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pgdfile = os.path.abspath(os.path.join(pgddir, basename + ".pgd"))
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if not os.path.isfile(pgdfile):
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return
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for file in os.listdir(pgcdir):
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if file.startswith(basename+"!") and file.endswith(".pgc"):
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try:
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pgcfile = os.path.normpath(os.path.join(pgcdir, file))
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subprocess.call(['pgomgr', '-merge',
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pgcfile,
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pgdfile])
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os.remove(pgcfile)
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except OSError:
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pass
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if __name__ == '__main__':
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if len(sys.argv) != 3:
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print >>sys.stderr, "Usage: pgomerge.py <binary basename> <dist/bin>"
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sys.exit(1)
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MergePGOFiles(sys.argv[1], os.getcwd(), sys.argv[2])
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