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30 lines
1001 B
Python
Executable File
30 lines
1001 B
Python
Executable File
#!/usr/bin/env drgn
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# Copyright (c) Meta Platforms, Inc. and affiliates.
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# SPDX-License-Identifier: LGPL-2.1-or-later
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"""An implementation of lsmod(8) using drgn"""
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from drgn.helpers.linux.list import list_for_each_entry
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print("Module Size Used by")
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config_module_unload = prog.type("struct module").has_member("refcnt")
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for mod in list_for_each_entry("struct module", prog["modules"].address_of_(), "list"):
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name = mod.name.string_().decode()
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size = (mod.init_layout.size + mod.core_layout.size).value_()
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if config_module_unload:
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refcnt = mod.refcnt.counter.value_() - 1
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used_by = [
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use.source.name.string_().decode()
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for use in list_for_each_entry(
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"struct module_use", mod.source_list.address_of_(), "source_list"
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)
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]
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else:
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refcnt = "-"
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used_by = []
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used = ",".join(used_by)
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if used:
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used = " " + used
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print(f"{name:19} {size:>8} {refcnt}{used}")
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