/[jscoverage]/trunk/js/build/win32/pgomerge.py
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Contents of /trunk/js/build/win32/pgomerge.py

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Revision 399 - (show annotations)
Tue Dec 9 03:37:47 2008 UTC (11 years, 10 months ago) by siliconforks
File MIME type: text/x-python
File size: 1628 byte(s)
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1 #!/usr/bin/python
2 # Usage: pgomerge.py <binary basename> <dist/bin>
3 # Gathers .pgc files from dist/bin and merges them into
4 # $PWD/$basename.pgd using pgomgr, then deletes them.
5 # No errors if any of these files don't exist.
6
7 import sys, os, os.path, subprocess
8 if not sys.platform == "win32":
9 raise Exception("This script was only meant for Windows.")
10
11 def MergePGOFiles(basename, pgddir, pgcdir):
12 """Merge pgc files produced from an instrumented binary
13 into the pgd file for the second pass of profile-guided optimization
14 with MSVC. |basename| is the name of the DLL or EXE without the
15 extension. |pgddir| is the path that contains <basename>.pgd
16 (should be the objdir it was built in). |pgcdir| is the path
17 containing basename!N.pgc files, which is probably dist/bin.
18 Calls pgomgr to merge each pgc file into the pgd, then deletes
19 the pgc files."""
20 if not os.path.isdir(pgddir) or not os.path.isdir(pgcdir):
21 return
22 pgdfile = os.path.abspath(os.path.join(pgddir, basename + ".pgd"))
23 if not os.path.isfile(pgdfile):
24 return
25 for file in os.listdir(pgcdir):
26 if file.startswith(basename) and file.endswith(".pgc"):
27 try:
28 pgcfile = os.path.normpath(os.path.join(pgcdir, file))
29 subprocess.call(['pgomgr', '-merge',
30 pgcfile,
31 pgdfile])
32 os.remove(pgcfile)
33 except OSError:
34 pass
35
36 if __name__ == '__main__':
37 if len(sys.argv) != 3:
38 print >>sys.stderr, "Usage: pgomerge.py <binary basename> <dist/bin>"
39 sys.exit(1)
40 MergePGOFiles(sys.argv[1], os.getcwd(), sys.argv[2])

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