56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
# SPDX-FileCopyrightText: 2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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'''
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Define the command 'print_struct_c99' for gdb,
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useful for creating a literal for a nested runtime struct.
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Example use:
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(gdb) source tools/utils/gdb_struct_repr_c99.py
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(gdb) print_struct_c99 scene->toolsettings
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'''
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class PrintStructC99(gdb.Command):
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def __init__(self):
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super(PrintStructC99, self).__init__(
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"print_struct_c99",
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gdb.COMMAND_USER,
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)
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def get_count_heading(self, string):
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for i, s in enumerate(string):
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if s != ' ':
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break
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return i
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def extract_typename(self, string):
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first_line = string.split('\n')[0]
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return first_line.split('=')[1][:-1].strip()
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def invoke(self, arg, from_tty):
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ret_ptype = gdb.execute('ptype {}'.format(arg), to_string=True)
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tname = self.extract_typename(ret_ptype)
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print('{} {} = {{'.format(tname, arg))
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r = gdb.execute('p {}'.format(arg), to_string=True)
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r = r.split('\n')
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for rr in r[1:]:
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if '=' not in rr:
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print(rr)
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continue
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hs = self.get_count_heading(rr)
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rr_s = rr.strip().split('=', 1)
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rr_rval = rr_s[1].strip()
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print(' ' * hs + '.' + rr_s[0] + '= ' + rr_rval)
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print('Running GDB from: %s\n' % (gdb.PYTHONDIR))
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gdb.execute("set print pretty")
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gdb.execute('set pagination off')
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gdb.execute('set print repeats 0')
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gdb.execute('set print elements unlimited')
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# instantiate
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PrintStructC99()
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