michael@0: #!/usr/bin/python
michael@0: # This Source Code Form is subject to the terms of the Mozilla Public
michael@0: # License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0: # file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0: 
michael@0: # Usage: pgomerge.py <binary basename> <dist/bin>
michael@0: # Gathers .pgc files from dist/bin and merges them into
michael@0: # $PWD/$basename.pgd using pgomgr, then deletes them.
michael@0: # No errors if any of these files don't exist.
michael@0: 
michael@0: import sys, os, os.path, subprocess
michael@0: if not sys.platform == "win32":
michael@0:     raise Exception("This script was only meant for Windows.")
michael@0: 
michael@0: def MergePGOFiles(basename, pgddir, pgcdir):
michael@0:   """Merge pgc files produced from an instrumented binary
michael@0:      into the pgd file for the second pass of profile-guided optimization
michael@0:      with MSVC.  |basename| is the name of the DLL or EXE without the
michael@0:      extension.  |pgddir| is the path that contains <basename>.pgd
michael@0:      (should be the objdir it was built in).  |pgcdir| is the path
michael@0:      containing basename!N.pgc files, which is probably dist/bin.
michael@0:      Calls pgomgr to merge each pgc file into the pgd, then deletes
michael@0:      the pgc files."""
michael@0:   if not os.path.isdir(pgddir) or not os.path.isdir(pgcdir):
michael@0:     return
michael@0:   pgdfile = os.path.abspath(os.path.join(pgddir, basename + ".pgd"))
michael@0:   if not os.path.isfile(pgdfile):
michael@0:     return
michael@0:   for file in os.listdir(pgcdir):
michael@0:     if file.startswith(basename+"!") and file.endswith(".pgc"):
michael@0:       try:
michael@0:         pgcfile = os.path.normpath(os.path.join(pgcdir, file))
michael@0:         subprocess.call(['pgomgr', '-merge',
michael@0:                          pgcfile,
michael@0:                          pgdfile])
michael@0:         os.remove(pgcfile)
michael@0:       except OSError:
michael@0:         pass
michael@0: 
michael@0: if __name__ == '__main__':
michael@0:   if len(sys.argv) != 3:
michael@0:       print >>sys.stderr, "Usage: pgomerge.py <binary basename> <dist/bin>"
michael@0:       sys.exit(1)
michael@0:   MergePGOFiles(sys.argv[1], os.getcwd(), sys.argv[2])