build/win32/pgomerge.py

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rwxr-xr-x

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0 1 #!/usr/bin/python
michael@0 2 # This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0 5
michael@0 6 # Usage: pgomerge.py <binary basename> <dist/bin>
michael@0 7 # Gathers .pgc files from dist/bin and merges them into
michael@0 8 # $PWD/$basename.pgd using pgomgr, then deletes them.
michael@0 9 # No errors if any of these files don't exist.
michael@0 10
michael@0 11 import sys, os, os.path, subprocess
michael@0 12 if not sys.platform == "win32":
michael@0 13 raise Exception("This script was only meant for Windows.")
michael@0 14
michael@0 15 def MergePGOFiles(basename, pgddir, pgcdir):
michael@0 16 """Merge pgc files produced from an instrumented binary
michael@0 17 into the pgd file for the second pass of profile-guided optimization
michael@0 18 with MSVC. |basename| is the name of the DLL or EXE without the
michael@0 19 extension. |pgddir| is the path that contains <basename>.pgd
michael@0 20 (should be the objdir it was built in). |pgcdir| is the path
michael@0 21 containing basename!N.pgc files, which is probably dist/bin.
michael@0 22 Calls pgomgr to merge each pgc file into the pgd, then deletes
michael@0 23 the pgc files."""
michael@0 24 if not os.path.isdir(pgddir) or not os.path.isdir(pgcdir):
michael@0 25 return
michael@0 26 pgdfile = os.path.abspath(os.path.join(pgddir, basename + ".pgd"))
michael@0 27 if not os.path.isfile(pgdfile):
michael@0 28 return
michael@0 29 for file in os.listdir(pgcdir):
michael@0 30 if file.startswith(basename+"!") and file.endswith(".pgc"):
michael@0 31 try:
michael@0 32 pgcfile = os.path.normpath(os.path.join(pgcdir, file))
michael@0 33 subprocess.call(['pgomgr', '-merge',
michael@0 34 pgcfile,
michael@0 35 pgdfile])
michael@0 36 os.remove(pgcfile)
michael@0 37 except OSError:
michael@0 38 pass
michael@0 39
michael@0 40 if __name__ == '__main__':
michael@0 41 if len(sys.argv) != 3:
michael@0 42 print >>sys.stderr, "Usage: pgomerge.py <binary basename> <dist/bin>"
michael@0 43 sys.exit(1)
michael@0 44 MergePGOFiles(sys.argv[1], os.getcwd(), sys.argv[2])

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