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class Symbol(object):
def __init__(self, name, module, version, export):
self.name, self.module = name, module
self.version, self.export = version, export
def __eq__(self, other):
if not isinstance(other, Symbol):
return NotImplemented
# Symbols are resolved to modules by depmod at installation/
# upgrade time, not compile time, so moving a symbol between
# modules is not an ABI change. Compare everything else.
if self.name != other.name:
return False
if self.version != other.version:
return False
if self.export != other.export:
return False
return True
def __ne__(self, other):
ret = self.__eq__(other)
if ret is NotImplemented:
return ret
return not ret
class Symbols(dict):
def __init__(self, file=None):
if file:
self.read(file)
def read(self, file):
for line in file:
version, name, module, export = line.strip().split()
self[name] = Symbol(name, module, version, export)
def write(self, file):
symbols = self.values()
symbols.sort(key=lambda i: i.name)
for s in symbols:
file.write("%s %s %s %s\n" %
(s.version, s.name, s.module, s.export))
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