41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
import gdb.printing
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import gdb
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import os
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def synthesise_gdb_value_from_string(s):
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'''For when you want to return a synthetic string from children()'''
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return gdb.Value(s + '\0').cast(gdb.lookup_type('char').pointer())
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class StatusCodePrinter(object):
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'''Print a system_error2::status_code<T>'''
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def __init__(self, val):
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self.val = val
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def children(self):
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s = str(self.val['_domain'])
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if 'posix_code_domain' in s or 'generic_code_domain' in s:
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yield ('msg', synthesise_gdb_value_from_string(str(self.val['_value']) + ' (' + os.strerror(int(self.val['_value'])) + ')'))
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yield ('domain', self.val['_domain'])
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yield ('value', self.val['_value'])
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def display_hint(self):
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return None
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def to_string(self):
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s = str(self.val['_domain'])
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if 'posix_code_domain' in s or 'generic_code_domain' in s:
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return str(self.val['_value']) + ' (' + os.strerror(int(self.val['_value'])) + ')'
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else:
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return self.val['_value']
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def build_pretty_printer():
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pp = gdb.printing.RegexpCollectionPrettyPrinter('system_error2')
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pp.add_printer('system_error2::status_code', '^(boost::)?system_error2::status_code<.*>$', StatusCodePrinter)
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return pp
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def register_printers(obj = None):
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gdb.printing.register_pretty_printer(obj, build_pretty_printer(), replace = True)
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register_printers(gdb.current_objfile())
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