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# Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
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# David Mosberger <davidm@hpl.hp.com>
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# Copyright 2010 Canonical Ltd.
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation
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# files (the "Software"), to deal in the Software without
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# restriction, including without limitation the rights to use,
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# copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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# Scan standard input for GCC warning messages that are likely to
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# source of real 64-bit problems. In particular, see whether there
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# are any implicitly declared functions whose return values are later
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# interpreted as pointers. Those are almost guaranteed to cause
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implicit_pattern = re.compile(
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"([^:]*):(\d+):(\d+:)? warning: implicit declaration "
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"of function [`']([^']*)'")
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pointer_pattern = re.compile(
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"([^:]*):(\d+):(\d+:)? warning: "
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+ "|passing arg \d+ of `[^']*'"
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+ "|passing arg \d+ of pointer to function"
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+ ") makes pointer from integer without a cast"
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+ "cast to pointer from integer of different size)")
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last_implicit_filename = ""
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last_implicit_linenum = -1
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last_implicit_func = ""
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for arg in sys.argv[1:]:
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elif arg == '--warnonly':
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line = sys.stdin.readline()
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sys.stdout.write(line)
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m = implicit_pattern.match(line)
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last_implicit_filename = m.group(1)
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last_implicit_linenum = int(m.group(2))
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last_implicit_func = m.group(4)
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m = pointer_pattern.match(line)
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pointer_filename = m.group(1)
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pointer_linenum = int(m.group(2))
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if (last_implicit_filename == pointer_filename
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and last_implicit_linenum == pointer_linenum):
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err = "Function `%s' implicitly converted to pointer at " \
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"%s:%d" % (last_implicit_func, last_implicit_filename,
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last_implicit_linenum)
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Our automated build log filter detected the problem(s) above that will
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likely cause your package to segfault on architectures where the size of
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a pointer is greater than the size of an integer, such as ia64 and amd64.
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This is often due to a missing function prototype definition.
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Since use of implicitly converted pointers is always fatal to the application
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on ia64, they are errors. Please correct them for your next upload.
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More information can be found at:
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http://wiki.debian.org/ImplicitPointerConversions
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if __name__ == '__main__':
added
removed
lib/canonical/buildd/check-implicit-pointer-functions
