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-rwxr-xr-xscripts/acpi_extract_preprocess.py51
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diff --git a/scripts/acpi_extract_preprocess.py b/scripts/acpi_extract_preprocess.py
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+#!/usr/bin/python
+# Copyright (C) 2011 Red Hat, Inc., Michael S. Tsirkin <mst@redhat.com>
+#
+# 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 2 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/>.
+
+# Read a preprocessed ASL listing and put each ACPI_EXTRACT
+# directive in a comment, to make iasl skip it.
+# We also put each directive on a new line, the machinery
+# in tools/acpi_extract.py requires this.
+
+import re;
+import sys;
+import fileinput;
+
+def die(diag):
+ sys.stderr.write("Error: %s\n" % (diag))
+ sys.exit(1)
+
+# Note: () around pattern make split return matched string as part of list
+psplit = re.compile(r''' (
+ \b # At word boundary
+ ACPI_EXTRACT_\w+ # directive
+ \s+ # some whitespace
+ \w+ # array name
+ )''', re.VERBOSE);
+
+lineno = 0
+for line in fileinput.input():
+ # line number and debug string to output in case of errors
+ lineno = lineno + 1
+ debug = "input line %d: %s" % (lineno, line.rstrip())
+
+ s = psplit.split(line);
+ # The way split works, each odd item is the matching ACPI_EXTRACT directive.
+ # Put each in a comment, and on a line by itself.
+ for i in range(len(s)):
+ if (i % 2):
+ sys.stdout.write("\n/* %s */\n" % s[i])
+ else:
+ sys.stdout.write(s[i])