use gnulib's update-copyright script to update copyright years

This patch now retires the old copyright.sh script which was using
emacs to perform the copyright update. It also completely rewrite
copyright.py to call update-copyright with the appropriate list
of files.

In addition to calling update-copyright, the new script also performs
a sanity-check on all the files that update-copyright could not update,
and sees whether the file might contain a copyright notice that
the script could not decipher.

gdb/ChangeLog:

        * copyright.sh: Delete.
        * copyright.py: Rewrite.

1 files changed, 257 insertions, 587 deletions

diff --git a/gdb/copyright.py b/gdb/copyright.py
index 71f261d6..93cfe71 100644
--- a/gdb/copyright.py
+++ b/gdb/copyright.py
@@ -1,608 +1,278 @@
 #! /usr/bin/env python
 
+# Copyright (C) 2011 Free Software Foundation, Inc.
+#
+# This file is part of GDB.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 """copyright.py
 
-This script updates most of the files that are not already handled
-by copyright.sh.  It must be run from the gdb/ subdirectory of the
-GDB source tree.
+This script updates the list of years in the copyright notices in
+most files maintained by the GDB project.
+
+Usage: cd src/gdb && python copyright.py
 
+Always review the output of this script before committing it!
+A useful command to review the output is:
+    % filterdiff -x \*.c -x \*.cc -x \*.h -x \*.exp updates.diff
+This removes the bulk of the changes which are most likely to be correct.
 """
 
 import datetime
-import re
 import os
 import os.path
+import subprocess
+
+# A list of prefixes that start a multi-line comment.  These prefixes
+# should not be repeatead when wraping long lines.
+MULTILINE_COMMENT_PREFIXES = (
+    '/*',    # C/C++
+    '<!--',  # XML
+    '{',     # Pascal
+)
 
-class Comment(object):
-    """A class describing comment.
-
-    ATTRIBUTES
-      start:  A string describing how comments are started.
-      stop:   A string describing how comments end.  If None, then
-              a comment ends at the end of the line.
-      start2: Some files accept more than 1 kind of comment.
-              For those that do, this is the alternative form.
-              For now, it is assumed that if start2 is not None,
-              then stop is None (thus no stop2 attribute).
+
+def get_update_list():
+    """Return the list of files to update.
+
+    Assumes that the current working directory when called is the root
+    of the GDB source tree (NOT the gdb/ subdirectory!).  The names of
+    the files are relative to that root directory.
     """
-    def __init__(self, start, stop=None, start2=None, max_lines=30):
-        """The "Copyright" keyword should be within MAX_LINES lines
-        from the start of the file."""
-        self.start = start
-        self.stop = stop
-        self.start2 = start2
-        self.max_lines = max_lines
+    result = []
+    for gdb_dir in ('gdb', 'sim', 'include/gdb'):
+        for root, dirs, files in os.walk(gdb_dir, topdown=True):
+            for dirname in dirs:
+                reldirname = "%s/%s" % (root, dirname)
+                if (dirname in EXCLUDE_ALL_LIST
+                    or reldirname in EXCLUDE_LIST
+                    or reldirname in NOT_FSF_LIST
+                    or reldirname in BY_HAND):
+                    # Prune this directory from our search list.
+                    dirs.remove(dirname)
+            for filename in files:
+                relpath = "%s/%s" % (root, filename)
+                if (filename in EXCLUDE_ALL_LIST
+                    or relpath in EXCLUDE_LIST
+                    or relpath in NOT_FSF_LIST
+                    or relpath in BY_HAND):
+                    # Ignore this file.
+                    pass
+                else:
+                    result.append(relpath)
+    return result
+
+
+def update_files(update_list):
+    """Update the copyright header of the files in the given list.
+
+    We use gnulib's update-copyright script for that.
+    """
+    # Tell the update-copyright script that we do not want it to
+    # repeat the prefixes in MULTILINE_COMMENT_PREFIXES.
+    os.environ['MULTILINE_COMMENT_PREFIXES'] = \
+        '\n'.join(MULTILINE_COMMENT_PREFIXES)
+    # We want to use year intervals in the copyright notices.
+    os.environ['UPDATE_COPYRIGHT_USE_INTERVALS'] = '1'
+
+    # Perform the update, and save the output in a string.
+    update_cmd = ['bash', 'gdb/gnulib/extra/update-copyright'] + update_list
+    p = subprocess.Popen(update_cmd, stdout=subprocess.PIPE,
+                         stderr=subprocess.STDOUT)
+    update_out = p.communicate()[0]
+
+    # Process the output.  Typically, a lot of files do not have
+    # a copyright notice :-(.  The update-copyright script prints
+    # a well defined warning when it did not find the copyright notice.
+    # For each of those, do a sanity check and see if they may in fact
+    # have one.  For the files that are found not to have one, we filter
+    # the line out from the output, since there is nothing more to do,
+    # short of looking at each file and seeing which notice is appropriate.
+    # Too much work! (~4,000 files listed as of 2012-01-03).
+    update_out = update_out.splitlines()
+    warning_string = ': warning: copyright statement not found'
+    warning_len = len(warning_string)
+
+    for line in update_out:
+        if line.endswith('\n'):
+            line = line[:-1]
+        if line.endswith(warning_string):
+            filename = line[:-warning_len]
+            if may_have_copyright_notice(filename):
+                print line
+        else:
+            # Unrecognized file format. !?!
+            print "*** " + line
+
+
+def may_have_copyright_notice(filename):
+    """Check that the given file does not seem to have a copyright notice.
+
+    The filename is relative to the root directory.
+    This function assumes that the current working directory is that root
+    directory.
 
-# The Comment object for Ada code (and GPR files).
-ADA_COMMENT = Comment(start="--")
+    The algorigthm is fairly crude, meaning that it might return
+    some false positives.  I do not think it will return any false
+    negatives...  We might improve this function to handle more
+    complex cases later...
+    """
+    # For now, it may have a copyright notice if we find the word
+    # "Copyright" at the (reasonable) start of the given file, say
+    # 50 lines...
+    MAX_LINES = 50
+
+    fd = open(filename)
+
+    lineno = 1
+    for line in fd:
+        if 'Copyright' in line:
+            return True
+        lineno += 1
+        if lineno > 50:
+            return False
+    return False
+
+
+def main ():
+    """The main subprogram."""
+    if not os.path.isfile("gnulib/extra/update-copyright"):
+        print "Error: This script must be called from the gdb directory."
+    root_dir = os.path.dirname(os.getcwd())
+    os.chdir(root_dir)
+
+    update_list = get_update_list()
+    update_files (update_list)
+
+    # Remind the user that some files need to be updated by HAND...
+    if BY_HAND:
+        print
+        print "\033[31mREMINDER: The following files must be updated by hand." \
+              "\033[0m"
+        for filename in BY_HAND:
+            print "  ", filename
+
+############################################################################
+#
+# Some constants, placed at the end because they take up a lot of room.
+# The actual value of these constants is not significant to the understanding
+# of the script.
+#
+############################################################################
 
-THIS_YEAR = str(datetime.date.today().year)
+# Files which should not be modified, either because they are
+# generated, non-FSF, or otherwise special (e.g. license text,
+# or test cases which must be sensitive to line numbering).
+#
+# Filenames are relative to the root directory.
+EXCLUDE_LIST = (
+    'gdb/gdbarch.c', 'gdb/gdbarch.h',
+    'gdb/gnulib'
+)
 
 # Files which should not be modified, either because they are
 # generated, non-FSF, or otherwise special (e.g. license text,
 # or test cases which must be sensitive to line numbering).
-EXCLUSION_LIST = (
-  "COPYING", "COPYING.LIB", "CVS", "configure", "copying.c", "gdbarch.c",
-  "gdbarch.h", "fdl.texi", "gpl.texi", "gdbtk", "gdb.gdbtk", "osf-share",
-  "aclocal.m4", "step-line.inp", "step-line.c",
-  )
-
-# Files that are too different from the rest to be processed automatically.
-BY_HAND = ['../sim/ppc/psim.texinfo']
-
-# Files for which we know that they do not have a copyright header.
-# Ideally, this list should be empty (but it may not be possible to
-# add a copyright header in some of them).
-NO_COPYRIGHT = (
-   # Configure files.  We should fix those, one day.
-   "testsuite/gdb.cell/configure.ac", "testsuite/gdb.hp/configure.ac",
-   "testsuite/gdb.hp/gdb.aCC/configure.ac",
-   "testsuite/gdb.hp/gdb.base-hp/configure.ac",
-   "testsuite/gdb.hp/gdb.compat/configure.ac",
-   "testsuite/gdb.hp/gdb.defects/configure.ac",
-   "testsuite/gdb.hp/gdb.objdbg/configure.ac",
-   "testsuite/gdb.stabs/configure.ac",
-   "../sim/arm/configure.ac", "../sim/avr/configure.ac",
-   "../sim/common/configure.ac", "../sim/configure.ac",
-   "../sim/cr16/configure.ac", "../sim/cris/configure.ac",
-   "../sim/d10v/configure.ac", "../sim/erc32/configure.ac",
-   "../sim/frv/configure.ac", "../sim/h8300/configure.ac",
-   "../sim/igen/configure.ac", "../sim/iq2000/configure.ac",
-   "../sim/lm32/configure.ac", "../sim/m32r/configure.ac",
-   "../sim/m68hc11/configure.ac", "../sim/mcore/configure.ac",
-   "../sim/microblaze/configure.ac", "../sim/mips/configure.ac",
-   "../sim/mn10300/configure.ac", "../sim/moxie/configure.ac",
-   "../sim/ppc/configure.ac", "../sim/sh/configure.ac",
-   "../sim/sh64/configure.ac", "../sim/testsuite/configure.ac",
-   "../sim/testsuite/d10v-elf/configure.ac",
-   "../sim/testsuite/frv-elf/configure.ac",
-   "../sim/testsuite/m32r-elf/configure.ac",
-   "../sim/testsuite/mips64el-elf/configure.ac", "../sim/v850/configure.ac",
-   # Assembly files.  It's not certain that we can add a copyright
-   # header in a way that works for all platforms supported by the
-   # testcase...
-   "testsuite/gdb.arch/pa-nullify.s", "testsuite/gdb.arch/pa64-nullify.s",
-   "testsuite/gdb.asm/asmsrc1.s", "testsuite/gdb.asm/asmsrc2.s",
-   "testsuite/gdb.disasm/am33.s", "testsuite/gdb.disasm/h8300s.s",
-   "testsuite/gdb.disasm/hppa.s", "testsuite/gdb.disasm/mn10200.s",
-   "testsuite/gdb.disasm/mn10300.s", "testsuite/gdb.disasm/sh3.s",
-   "testsuite/gdb.disasm/t01_mov.s", "testsuite/gdb.disasm/t02_mova.s",
-   "testsuite/gdb.disasm/t03_add.s", "testsuite/gdb.disasm/t04_sub.s",
-   "testsuite/gdb.disasm/t05_cmp.s", "testsuite/gdb.disasm/t06_ari2.s",
-   "testsuite/gdb.disasm/t07_ari3.s", "testsuite/gdb.disasm/t08_or.s",
-   "testsuite/gdb.disasm/t09_xor.s", "testsuite/gdb.disasm/t10_and.s",
-   "testsuite/gdb.disasm/t11_logs.s", "testsuite/gdb.disasm/t12_bit.s",
-   "testsuite/gdb.disasm/t13_otr.s", "testsuite/gdb.hp/gdb.base-hp/reg-pa64.s",
-   "testsuite/gdb.hp/gdb.base-hp/reg.s",
-   "../sim/testsuite/d10v-elf/exit47.s",
-   "../sim/testsuite/d10v-elf/hello.s",
-   "../sim/testsuite/d10v-elf/loop.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld-d.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld-i.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld-id.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld-im.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld-ip.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld2w-d.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld2w-i.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld2w-id.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld2w-im.s",
-   "../sim/testsuite/d10v-elf/t-ae-ld2w-ip.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-d.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-i.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-id.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-im.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-ip.s",
-   "../sim/testsuite/d10v-elf/t-ae-st-is.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-d.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-i.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-id.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-im.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-ip.s",
-   "../sim/testsuite/d10v-elf/t-ae-st2w-is.s",
-   "../sim/testsuite/d10v-elf/t-dbt.s",
-   "../sim/testsuite/d10v-elf/t-ld-st.s",
-   "../sim/testsuite/d10v-elf/t-mac.s",
-   "../sim/testsuite/d10v-elf/t-mod-ld-pre.s",
-   "../sim/testsuite/d10v-elf/t-msbu.s",
-   "../sim/testsuite/d10v-elf/t-mulxu.s",
-   "../sim/testsuite/d10v-elf/t-mvtac.s",
-   "../sim/testsuite/d10v-elf/t-mvtc.s",
-   "../sim/testsuite/d10v-elf/t-rac.s",
-   "../sim/testsuite/d10v-elf/t-rachi.s",
-   "../sim/testsuite/d10v-elf/t-rdt.s",
-   "../sim/testsuite/d10v-elf/t-rep.s",
-   "../sim/testsuite/d10v-elf/t-rie-xx.s",
-   "../sim/testsuite/d10v-elf/t-rte.s",
-   "../sim/testsuite/d10v-elf/t-sac.s",
-   "../sim/testsuite/d10v-elf/t-sachi.s",
-   "../sim/testsuite/d10v-elf/t-sadd.s",
-   "../sim/testsuite/d10v-elf/t-slae.s",
-   "../sim/testsuite/d10v-elf/t-sp.s",
-   "../sim/testsuite/d10v-elf/t-sub.s",
-   "../sim/testsuite/d10v-elf/t-sub2w.s",
-   "../sim/testsuite/d10v-elf/t-subi.s",
-   "../sim/testsuite/d10v-elf/t-trap.s",
-   "../sim/testsuite/frv-elf/cache.s",
-   "../sim/testsuite/frv-elf/exit47.s",
-   "../sim/testsuite/frv-elf/grloop.s",
-   "../sim/testsuite/frv-elf/hello.s",
-   "../sim/testsuite/frv-elf/loop.s",
-   "../sim/testsuite/m32r-elf/exit47.s",
-   "../sim/testsuite/m32r-elf/hello.s",
-   "../sim/testsuite/m32r-elf/loop.s",
-   "../sim/testsuite/sim/cris/hw/rv-n-cris/quit.s",
-   "../sim/testsuite/sim/h8300/addb.s",
-   "../sim/testsuite/sim/h8300/addl.s",
-   "../sim/testsuite/sim/h8300/adds.s",
-   "../sim/testsuite/sim/h8300/addw.s",
-   "../sim/testsuite/sim/h8300/addx.s",
-   "../sim/testsuite/sim/h8300/andb.s",
-   "../sim/testsuite/sim/h8300/andl.s",
-   "../sim/testsuite/sim/h8300/andw.s",
-   "../sim/testsuite/sim/h8300/band.s",
-   "../sim/testsuite/sim/h8300/bfld.s",
-   "../sim/testsuite/sim/h8300/biand.s",
-   "../sim/testsuite/sim/h8300/bra.s",
-   "../sim/testsuite/sim/h8300/brabc.s",
-   "../sim/testsuite/sim/h8300/bset.s",
-   "../sim/testsuite/sim/h8300/cmpb.s",
-   "../sim/testsuite/sim/h8300/cmpl.s",
-   "../sim/testsuite/sim/h8300/cmpw.s",
-   "../sim/testsuite/sim/h8300/daa.s",
-   "../sim/testsuite/sim/h8300/das.s",
-   "../sim/testsuite/sim/h8300/dec.s",
-   "../sim/testsuite/sim/h8300/div.s",
-   "../sim/testsuite/sim/h8300/extl.s",
-   "../sim/testsuite/sim/h8300/extw.s",
-   "../sim/testsuite/sim/h8300/inc.s",
-   "../sim/testsuite/sim/h8300/jmp.s",
-   "../sim/testsuite/sim/h8300/ldc.s",
-   "../sim/testsuite/sim/h8300/ldm.s",
-   "../sim/testsuite/sim/h8300/mac.s",
-   "../sim/testsuite/sim/h8300/mova.s",
-   "../sim/testsuite/sim/h8300/movb.s",
-   "../sim/testsuite/sim/h8300/movl.s",
-   "../sim/testsuite/sim/h8300/movmd.s",
-   "../sim/testsuite/sim/h8300/movsd.s",
-   "../sim/testsuite/sim/h8300/movw.s",
-   "../sim/testsuite/sim/h8300/mul.s",
-   "../sim/testsuite/sim/h8300/neg.s",
-   "../sim/testsuite/sim/h8300/nop.s",
-   "../sim/testsuite/sim/h8300/not.s",
-   "../sim/testsuite/sim/h8300/orb.s",
-   "../sim/testsuite/sim/h8300/orl.s",
-   "../sim/testsuite/sim/h8300/orw.s",
-   "../sim/testsuite/sim/h8300/rotl.s",
-   "../sim/testsuite/sim/h8300/rotr.s",
-   "../sim/testsuite/sim/h8300/rotxl.s",
-   "../sim/testsuite/sim/h8300/rotxr.s",
-   "../sim/testsuite/sim/h8300/shal.s",
-   "../sim/testsuite/sim/h8300/shar.s",
-   "../sim/testsuite/sim/h8300/shll.s",
-   "../sim/testsuite/sim/h8300/shlr.s",
-   "../sim/testsuite/sim/h8300/stack.s",
-   "../sim/testsuite/sim/h8300/stc.s",
-   "../sim/testsuite/sim/h8300/subb.s",
-   "../sim/testsuite/sim/h8300/subl.s",
-   "../sim/testsuite/sim/h8300/subs.s",
-   "../sim/testsuite/sim/h8300/subw.s",
-   "../sim/testsuite/sim/h8300/subx.s",
-   "../sim/testsuite/sim/h8300/tas.s",
-   "../sim/testsuite/sim/h8300/xorb.s",
-   "../sim/testsuite/sim/h8300/xorl.s",
-   "../sim/testsuite/sim/h8300/xorw.s",
-   "../sim/testsuite/sim/mips/fpu64-ps-sb1.s",
-   "../sim/testsuite/sim/mips/fpu64-ps.s",
-   "../sim/testsuite/sim/mips/hilo-hazard-1.s",
-   "../sim/testsuite/sim/mips/hilo-hazard-2.s",
-   "../sim/testsuite/sim/mips/hilo-hazard-3.s",
-   "../sim/testsuite/sim/mips/mdmx-ob-sb1.s",
-   "../sim/testsuite/sim/mips/mdmx-ob.s",
-   "../sim/testsuite/sim/mips/mips32-dsp.s",
-   "../sim/testsuite/sim/mips/mips32-dsp2.s",
-   "../sim/testsuite/sim/mips/sanity.s",
-   "../sim/testsuite/sim/sh/add.s",
-   "../sim/testsuite/sim/sh/and.s",
-   "../sim/testsuite/sim/sh/bandor.s",
-   "../sim/testsuite/sim/sh/bandornot.s",
-   "../sim/testsuite/sim/sh/bclr.s",
-   "../sim/testsuite/sim/sh/bld.s",
-   "../sim/testsuite/sim/sh/bldnot.s",
-   "../sim/testsuite/sim/sh/bset.s",
-   "../sim/testsuite/sim/sh/bst.s",
-   "../sim/testsuite/sim/sh/bxor.s",
-   "../sim/testsuite/sim/sh/clip.s",
-   "../sim/testsuite/sim/sh/div.s",
-   "../sim/testsuite/sim/sh/dmxy.s",
-   "../sim/testsuite/sim/sh/fabs.s",
-   "../sim/testsuite/sim/sh/fadd.s",
-   "../sim/testsuite/sim/sh/fail.s",
-   "../sim/testsuite/sim/sh/fcmpeq.s",
-   "../sim/testsuite/sim/sh/fcmpgt.s",
-   "../sim/testsuite/sim/sh/fcnvds.s",
-   "../sim/testsuite/sim/sh/fcnvsd.s",
-   "../sim/testsuite/sim/sh/fdiv.s",
-   "../sim/testsuite/sim/sh/fipr.s",
-   "../sim/testsuite/sim/sh/fldi0.s",
-   "../sim/testsuite/sim/sh/fldi1.s",
-   "../sim/testsuite/sim/sh/flds.s",
-   "../sim/testsuite/sim/sh/float.s",
-   "../sim/testsuite/sim/sh/fmac.s",
-   "../sim/testsuite/sim/sh/fmov.s",
-   "../sim/testsuite/sim/sh/fmul.s",
-   "../sim/testsuite/sim/sh/fneg.s",
-   "../sim/testsuite/sim/sh/fpchg.s",
-   "../sim/testsuite/sim/sh/frchg.s",
-   "../sim/testsuite/sim/sh/fsca.s",
-   "../sim/testsuite/sim/sh/fschg.s",
-   "../sim/testsuite/sim/sh/fsqrt.s",
-   "../sim/testsuite/sim/sh/fsrra.s",
-   "../sim/testsuite/sim/sh/fsub.s",
-   "../sim/testsuite/sim/sh/ftrc.s",
-   "../sim/testsuite/sim/sh/ldrc.s",
-   "../sim/testsuite/sim/sh/loop.s",
-   "../sim/testsuite/sim/sh/macl.s",
-   "../sim/testsuite/sim/sh/macw.s",
-   "../sim/testsuite/sim/sh/mov.s",
-   "../sim/testsuite/sim/sh/movi.s",
-   "../sim/testsuite/sim/sh/movli.s",
-   "../sim/testsuite/sim/sh/movua.s",
-   "../sim/testsuite/sim/sh/movxy.s",
-   "../sim/testsuite/sim/sh/mulr.s",
-   "../sim/testsuite/sim/sh/pabs.s",
-   "../sim/testsuite/sim/sh/padd.s",
-   "../sim/testsuite/sim/sh/paddc.s",
-   "../sim/testsuite/sim/sh/pand.s",
-   "../sim/testsuite/sim/sh/pass.s",
-   "../sim/testsuite/sim/sh/pclr.s",
-   "../sim/testsuite/sim/sh/pdec.s",
-   "../sim/testsuite/sim/sh/pdmsb.s",
-   "../sim/testsuite/sim/sh/pinc.s",
-   "../sim/testsuite/sim/sh/pmuls.s",
-   "../sim/testsuite/sim/sh/prnd.s",
-   "../sim/testsuite/sim/sh/pshai.s",
-   "../sim/testsuite/sim/sh/pshar.s",
-   "../sim/testsuite/sim/sh/pshli.s",
-   "../sim/testsuite/sim/sh/pshlr.s",
-   "../sim/testsuite/sim/sh/psub.s",
-   "../sim/testsuite/sim/sh/pswap.s",
-   "../sim/testsuite/sim/sh/pushpop.s",
-   "../sim/testsuite/sim/sh/resbank.s",
-   "../sim/testsuite/sim/sh/sett.s",
-   "../sim/testsuite/sim/sh/shll.s",
-   "../sim/testsuite/sim/sh/shll16.s",
-   "../sim/testsuite/sim/sh/shll2.s",
-   "../sim/testsuite/sim/sh/shll8.s",
-   "../sim/testsuite/sim/sh/shlr.s",
-   "../sim/testsuite/sim/sh/shlr16.s",
-   "../sim/testsuite/sim/sh/shlr2.s",
-   "../sim/testsuite/sim/sh/shlr8.s",
-   "../sim/testsuite/sim/sh/swap.s",
-   "../sim/testsuite/sim/sh64/misc/fr-dr.s",
-   # .inc files.  These are usually assembly or C files...
-   "testsuite/gdb.asm/alpha.inc",
-   "testsuite/gdb.asm/arm.inc",
-   "testsuite/gdb.asm/common.inc",
-   "testsuite/gdb.asm/empty.inc",
-   "testsuite/gdb.asm/frv.inc",
-   "testsuite/gdb.asm/h8300.inc",
-   "testsuite/gdb.asm/i386.inc",
-   "testsuite/gdb.asm/ia64.inc",
-   "testsuite/gdb.asm/iq2000.inc",
-   "testsuite/gdb.asm/m32c.inc",
-   "testsuite/gdb.asm/m32r-linux.inc",
-   "testsuite/gdb.asm/m32r.inc",
-   "testsuite/gdb.asm/m68hc11.inc",
-   "testsuite/gdb.asm/m68k.inc",
-   "testsuite/gdb.asm/mips.inc",
-   "testsuite/gdb.asm/netbsd.inc",
-   "testsuite/gdb.asm/openbsd.inc",
-   "testsuite/gdb.asm/pa.inc",
-   "testsuite/gdb.asm/pa64.inc",
-   "testsuite/gdb.asm/powerpc.inc",
-   "testsuite/gdb.asm/powerpc64.inc",
-   "testsuite/gdb.asm/s390.inc",
-   "testsuite/gdb.asm/s390x.inc",
-   "testsuite/gdb.asm/sh.inc",
-   "testsuite/gdb.asm/sparc.inc",
-   "testsuite/gdb.asm/sparc64.inc",
-   "testsuite/gdb.asm/spu.inc",
-   "testsuite/gdb.asm/v850.inc",
-   "testsuite/gdb.asm/x86_64.inc",
-   "testsuite/gdb.asm/xstormy16.inc",
-   "../sim/testsuite/sim/arm/iwmmxt/testutils.inc",
-   "../sim/testsuite/sim/arm/testutils.inc",
-   "../sim/testsuite/sim/arm/thumb/testutils.inc",
-   "../sim/testsuite/sim/arm/xscale/testutils.inc",
-   "../sim/testsuite/sim/cr16/testutils.inc",
-   "../sim/testsuite/sim/cris/asm/testutils.inc",
-   "../sim/testsuite/sim/cris/hw/rv-n-cris/testutils.inc",
-   "../sim/testsuite/sim/fr30/testutils.inc",
-   "../sim/testsuite/sim/frv/testutils.inc",
-   "../sim/testsuite/sim/h8300/testutils.inc",
-   "../sim/testsuite/sim/m32r/testutils.inc",
-   "../sim/testsuite/sim/sh/testutils.inc",
-   "../sim/testsuite/sim/sh64/compact/testutils.inc",
-   "../sim/testsuite/sim/sh64/media/testutils.inc",
-   "../sim/testsuite/sim/v850/testutils.inc",
-   )
-
-# A mapping between file extensions to their associated Comment object.
-# This dictionary also contains a number of exceptions, based on
-# filename.
-COMMENT_MAP = \
-  {".1" : Comment(start=r'.\"'),
-   ".ac" : Comment(start="dnl", start2="#"),
-   ".ads" : ADA_COMMENT,
-   ".adb" : ADA_COMMENT,
-   ".f" : Comment(start="c"),
-   ".f90" : Comment(start="!"),
-   ".gpr" : ADA_COMMENT,
-   ".inc" : Comment(start="#", start2=";"),
-   ".s" : Comment(start="!"),
-   ".tex" : Comment(start="%"),
-   ".texi" : Comment(start="@c"),
-   ".texinfo" : Comment(start="@c"),
-
-   # Files that use a different way of including the copyright
-   # header...
-   "ada-operator.inc" : Comment(start="/*", stop="*/"),
-   "gdbint.texinfo" : Comment(start='@copying', stop="@end copying"),
-   "annotate.texinfo" : Comment(start='@copying', stop="@end copying",
-                                max_lines=50),
-   "stabs.texinfo" : Comment(start='@copying', stop="@end copying"),
-  }
-
-class NotFound(Exception):
-    pass
-
-class AlreadyDone(Exception):
-    pass
-
-def process_header(src, dst, cdescr):
-    """Read from SRC for up to CDESCR.MAX_LINES until we find a copyright
-    notice.  If found, then write the entire file, with the copyright
-    noticed updated with the current year added.
-
-    Raises NotFound if the copyright notice could not be found or has
-    some inconsistencies.
-
-    Raises AlreadyDone if the copyright notice already includes the current
-    year.
-    """
-    line_count = 0
-    # The start-of-comment marker used for this file.  Only really useful
-    # in the case where comments ends at the end of the line, as this
-    # allows us to know which comment marker to use when breaking long
-    # lines (in the cases where there are more than one.
-    cdescr_start = ""
-
-    while True:
-        # If we still haven't found a copyright line within a certain
-        # number of lines, then give up.
-        if line_count > cdescr.max_lines:
-            raise NotFound("start of Copyright not found")
-
-        line = src.readline()
-        line_count += 1
-        if not line:
-            raise NotFound("start of Copyright not found (EOF)")
-
-        # Is this a copyright line?  If not, then no transformation is
-        # needed.  Write it as is, and continue.
-        if not re.search(r"Copyright\b.*\b(199\d|20\d\d)\b", line):
-            dst.write(line)
-            continue
-
-        # If a start-of-comment marker is needed for every line, try to
-        # figure out which one it is that is being used in this file (most
-        # files only accept one, in which case it's easy - but some accept
-        # two or more...).
-        if cdescr.stop is None:
-            stripped_line = line.lstrip()
-            if stripped_line.startswith(cdescr.start):
-                cdescr_start = cdescr.start
-            elif (cdescr.start2 is not None
-                  and stripped_line.startswith(cdescr.start2)):
-                cdescr_start = cdescr.start2
-            elif cdescr.start in stripped_line:
-                cdescr_start = cdescr.start
-            elif (cdescr.start2 is not None
-                  and cdescr.start2 in stripped_line):
-                cdescr_start = cdescr.start2
-            else:
-                # This can't be a line with a comment, so not the copyright
-                # line we were looking for.  Ignore.
-                continue
-
-        comment = line
-        break
-
-    while not re.search(r"Free\s+Software\s+Foundation", comment):
-        line = src.readline()
-        line_count += 1
-        if not line:
-            raise NotFound("Copyright owner not found (EOF)")
-
-        if cdescr.stop is None:
-            # Expect a new comment marker at the start of each line
-            line = line.lstrip()
-            if not line.startswith(cdescr_start):
-                raise NotFound("Copyright owner not found "
-                               "(end of comment)")
-            comment += " " + line[len(cdescr_start):]
-        else:
-            if cdescr.stop in comment:
-                raise NotFound("Copyright owner not found "
-                               "(end of comment)")
-            comment += line
-
-    # Normalize a bit the copyright string (we preserve the string
-    # up until "Copyright", in order to help preserve any original
-    # alignment.
-    (before, after) = comment.split("Copyright", 1)
-    after = after.replace("\n", " ")
-    after = re.sub("\s+", " ", after)
-    after = after.rstrip()
-
-    # If the copyright year has already been added, the nothing else
-    # to do.
-    if THIS_YEAR in after:
-        raise AlreadyDone
-
-    m = re.match("(.*[0-9]+)(.*)", after)
-    if m is None:
-        raise NotFound("Internal error - cannot split copyright line: "
-                       "`%s'" % comment)
-
-    # Reconstruct the comment line
-    comment = before + "Copyright" + m.group(1) + ', %s' % THIS_YEAR
-    owner_part = m.group(2).lstrip()
-
-    # Max comment len...
-    max_len = 76
-
-    # If we have to break the copyright line into multiple lines,
-    # we want to align all the lines on the "Copyright" keyword.
-    # Create a small "indent" string that we can use for that.
-    if cdescr.stop is None:
-        # The comment marker is needed on every line, so put it at the
-        # start of our "indent" string.
-        indent = cdescr_start + ' ' * (len(before) - len(cdescr_start))
-    else:
-        indent = ' ' * len(before)
-
-    # If the line is too long...
-    while len(comment) > max_len:
-        # Split the line at the first space before max_len.
-        space_index = comment[0:max_len].rfind(' ')
-        if space_index < 0:  # No space in the first max_len characters???
-            # Split at the first space, then...
-            space_index = comment.find(' ')
-        if space_index < 0:
-            # Still no space found.  This is extremely unlikely, but
-            # just pretend there is one at the end of the string.
-            space_index = len(comment)
-
-        # Write the first part of the string up until the space
-        # we selected to break our line.
-        dst.write(comment[:space_index] + '\n')
-
-        # Strip the part of comment that we have finished printing.
-        if space_index < len(comment):
-            comment = comment[space_index + 1:]
-        else:
-            comment = ""
-
-        # Prepend the "indent" string to make sure that we remain
-        # aligned on the "Copyright" word.
-        comment = indent + comment
-
-    # And finally, write the rest of the last line...  We want to write
-    # "Free Software Foundation, Inc" on the same line, so handle this
-    # with extra care.
-    dst.write(comment)
-    if len(comment) + 1 + len (owner_part) > max_len:
-        dst.write('\n' + indent)
-    else:
-        dst.write(' ')
-    dst.write(owner_part + '\n')
-
-def comment_for_filename(filename):
-    """Return the Comment object that best describes the given file.
-    This a smart lookup of the COMMENT_MAP dictionary where we check
-    for filename-based exceptions first, before looking up the comment
-    by filename extension.  """
-    # First, consult the COMMENT_MAP using the filename, in case this
-    # file needs special treatment.
-    basename = os.path.basename(filename)
-    if basename in COMMENT_MAP:
-        return COMMENT_MAP[basename]
-    # Not a special file.  Check the file extension.
-    ext = os.path.splitext(filename)[1]
-    if ext in COMMENT_MAP:
-        return COMMENT_MAP[ext]
-    # Not a know extension either, return None.
-    return None
-
-def process_file(filename):
-    """Processes the given file.
-    """
-    cdescr = comment_for_filename(filename)
-    if cdescr is None:
-        # Either no filename extension, or not an extension that we
-        # know how to handle.
-        return
-
-    dst_filename = filename + '.new'
-    src = open(filename)
-    dst = open(dst_filename, 'w')
-    try:
-        process_header(src, dst, cdescr)
-    except AlreadyDone:
-        print "+++ Already up to date: `%s'." % filename
-        dst.close()
-        os.unlink(dst_filename)
-        if filename in NO_COPYRIGHT:
-            # We expect the search for a copyright header to fail, and
-            # yet we found one...
-            print "Warning: `%s' should not be in NO_COPYRIGHT" % filename
-        return
-    except NotFound as inst:
-        dst.close()
-        os.unlink(dst_filename)
-        if not filename in NO_COPYRIGHT:
-            print "*** \033[31m%s\033[0m: %s" % (filename, inst)
-        return
-
-    if filename in NO_COPYRIGHT:
-        # We expect the search for a copyright header to fail, and
-        # yet we found one...
-        print "Warning: `%s' should not be in NO_COPYRIGHT" % filename
-
-    for line in src:
-        dst.write(line)
-    src.close()
-    dst.close()
-    os.rename(dst_filename, filename)
+#
+# Matches any file or directory name anywhere.  Use with caution.
+# This is mostly for files that can be found in multiple directories.
+# Eg: We want all files named COPYING to be left untouched.
+
+EXCLUDE_ALL_LIST = (
+    "COPYING", "COPYING.LIB", "CVS", "configure", "copying.c",
+    "fdl.texi", "gpl.texi", "aclocal.m4",
+)
+
+# The list of files to update by hand.
+BY_HAND = (
+    # These files are sensitive to line numbering.
+    "gdb/testsuite/gdb.base/step-line.inp",
+    "gdb/testsuite/gdb.base/step-line.c",
+)
+
+# The list of file which have a copyright, but not head by the FSF.
+# Filenames are relative to the root directory.
+NOT_FSF_LIST = (
+    "gdb/exc_request.defs",
+    "gdb/osf-share",
+    "gdb/gdbtk",
+    "gdb/testsuite/gdb.gdbtk/",
+    "sim/arm/armemu.h", "sim/arm/armos.c", "sim/arm/gdbhost.c",
+    "sim/arm/dbg_hif.h", "sim/arm/dbg_conf.h", "sim/arm/communicate.h",
+    "sim/arm/armos.h", "sim/arm/armcopro.c", "sim/arm/armemu.c",
+    "sim/arm/kid.c", "sim/arm/thumbemu.c", "sim/arm/armdefs.h",
+    "sim/arm/armopts.h", "sim/arm/dbg_cp.h", "sim/arm/dbg_rdi.h",
+    "sim/arm/parent.c", "sim/arm/armsupp.c", "sim/arm/armrdi.c",
+    "sim/arm/bag.c", "sim/arm/armvirt.c", "sim/arm/main.c", "sim/arm/bag.h",
+    "sim/arm/communicate.c", "sim/arm/gdbhost.h", "sim/arm/armfpe.h",
+    "sim/arm/arminit.c",
+    "sim/common/cgen-fpu.c", "sim/common/cgen-fpu.h", "sim/common/cgen-fpu.h",
+    "sim/common/cgen-accfp.c", "sim/common/sim-fpu.c",
+    "sim/erc32/sis.h", "sim/erc32/erc32.c", "sim/erc32/func.c",
+    "sim/erc32/float.c", "sim/erc32/interf.c", "sim/erc32/sis.c",
+    "sim/erc32/exec.c",
+    "sim/mips/m16run.c", "sim/mips/sim-main.c",
+    "sim/mn10300/sim-main.h",
+    "sim/moxie/moxie-gdb.dts",
+    # Not a single file in sim/ppc/ appears to be copyright FSF :-(.
+    "sim/ppc/filter.h", "sim/ppc/gen-support.h", "sim/ppc/ld-insn.h",
+    "sim/ppc/hw_sem.c", "sim/ppc/hw_disk.c", "sim/ppc/idecode_branch.h",
+    "sim/ppc/sim-endian.h", "sim/ppc/table.c", "sim/ppc/hw_core.c",
+    "sim/ppc/gen-support.c", "sim/ppc/gen-semantics.h", "sim/ppc/cpu.h",
+    "sim/ppc/sim_callbacks.h", "sim/ppc/RUN", "sim/ppc/Makefile.in",
+    "sim/ppc/emul_chirp.c", "sim/ppc/hw_nvram.c", "sim/ppc/dc-test.01",
+    "sim/ppc/hw_phb.c", "sim/ppc/hw_eeprom.c", "sim/ppc/bits.h",
+    "sim/ppc/hw_vm.c", "sim/ppc/cap.h", "sim/ppc/os_emul.h",
+    "sim/ppc/options.h", "sim/ppc/gen-idecode.c", "sim/ppc/filter.c",
+    "sim/ppc/corefile-n.h", "sim/ppc/std-config.h", "sim/ppc/ld-decode.h",
+    "sim/ppc/filter_filename.h", "sim/ppc/hw_shm.c",
+    "sim/ppc/pk_disklabel.c", "sim/ppc/dc-simple", "sim/ppc/misc.h",
+    "sim/ppc/device_table.h", "sim/ppc/ld-insn.c", "sim/ppc/inline.c",
+    "sim/ppc/emul_bugapi.h", "sim/ppc/hw_cpu.h", "sim/ppc/debug.h",
+    "sim/ppc/hw_ide.c", "sim/ppc/debug.c", "sim/ppc/gen-itable.h",
+    "sim/ppc/interrupts.c", "sim/ppc/hw_glue.c", "sim/ppc/emul_unix.c",
+    "sim/ppc/sim_calls.c", "sim/ppc/dc-complex", "sim/ppc/ld-cache.c",
+    "sim/ppc/registers.h", "sim/ppc/dc-test.02", "sim/ppc/options.c",
+    "sim/ppc/igen.h", "sim/ppc/registers.c", "sim/ppc/device.h",
+    "sim/ppc/emul_chirp.h", "sim/ppc/hw_register.c", "sim/ppc/hw_init.c",
+    "sim/ppc/sim-endian-n.h", "sim/ppc/filter_filename.c",
+    "sim/ppc/bits.c", "sim/ppc/idecode_fields.h", "sim/ppc/hw_memory.c",
+    "sim/ppc/misc.c", "sim/ppc/double.c", "sim/ppc/psim.h",
+    "sim/ppc/hw_trace.c", "sim/ppc/emul_netbsd.h", "sim/ppc/psim.c",
+    "sim/ppc/ppc-instructions", "sim/ppc/tree.h", "sim/ppc/README",
+    "sim/ppc/gen-icache.h", "sim/ppc/gen-model.h", "sim/ppc/ld-cache.h",
+    "sim/ppc/mon.c", "sim/ppc/corefile.h", "sim/ppc/vm.c",
+    "sim/ppc/INSTALL", "sim/ppc/gen-model.c", "sim/ppc/hw_cpu.c",
+    "sim/ppc/corefile.c", "sim/ppc/hw_opic.c", "sim/ppc/gen-icache.c",
+    "sim/ppc/events.h", "sim/ppc/os_emul.c", "sim/ppc/emul_generic.c",
+    "sim/ppc/main.c", "sim/ppc/hw_com.c", "sim/ppc/gen-semantics.c",
+    "sim/ppc/emul_bugapi.c", "sim/ppc/device.c", "sim/ppc/emul_generic.h",
+    "sim/ppc/tree.c", "sim/ppc/mon.h", "sim/ppc/interrupts.h",
+    "sim/ppc/cap.c", "sim/ppc/cpu.c", "sim/ppc/hw_phb.h",
+    "sim/ppc/device_table.c", "sim/ppc/lf.c", "sim/ppc/lf.c",
+    "sim/ppc/dc-stupid", "sim/ppc/hw_pal.c", "sim/ppc/ppc-spr-table",
+    "sim/ppc/emul_unix.h", "sim/ppc/words.h", "sim/ppc/basics.h",
+    "sim/ppc/hw_htab.c", "sim/ppc/lf.h", "sim/ppc/ld-decode.c",
+    "sim/ppc/sim-endian.c", "sim/ppc/gen-itable.c",
+    "sim/ppc/idecode_expression.h", "sim/ppc/table.h", "sim/ppc/dgen.c",
+    "sim/ppc/events.c", "sim/ppc/gen-idecode.h", "sim/ppc/emul_netbsd.c",
+    "sim/ppc/igen.c", "sim/ppc/vm_n.h", "sim/ppc/vm.h",
+    "sim/ppc/hw_iobus.c", "sim/ppc/inline.h",
+    "sim/testsuite/sim/bfin/s21.s", "sim/testsuite/sim/mips/mips32-dsp2.s",
+)
 
 if __name__ == "__main__":
-    if not os.path.isfile("doc/gdb.texinfo"):
-        print "Error: This script must be called from the gdb directory."
-    for gdb_dir in ('.', '../sim', '../include/gdb'):
-        for root, dirs, files in os.walk(gdb_dir):
-            for filename in files:
-                fullpath = os.path.join(root, filename)
-                if fullpath.startswith('./'):
-                    fullpath = fullpath[2:]
-                if filename not in EXCLUSION_LIST and fullpath not in BY_HAND:
-                    # Paths that start with './' are ugly, so strip that.
-                    # This also allows us to omit them in the NO_COPYRIGHT
-                    # list...
-                    process_file(fullpath)
-    print
-    print "\033[32mREMINDER: The following files must be updated by hand." \
-          "\033[0m"
-    for filename in BY_HAND:
-        print "  ", filename
+    main()