143 lines
4.8 KiB
ReStructuredText
143 lines
4.8 KiB
ReStructuredText
llvm-dwarfdump - dump and verify DWARF debug information
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========================================================
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SYNOPSIS
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--------
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:program:`llvm-dwarfdump` [*options*] [*filename ...*]
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DESCRIPTION
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-----------
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:program:`llvm-dwarfdump` parses DWARF sections in object files,
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archives, and `.dSYM` bundles and prints their contents in
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human-readable form. Only the .debug_info section is printed unless one of
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the section-specific options or :option:`--all` is specified.
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OPTIONS
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-------
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.. option:: -a, --all
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Disassemble all supported DWARF sections.
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.. option:: --arch=<arch>
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Dump DWARF debug information for the specified CPU architecture.
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Architectures may be specified by name or by number. This
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option can be specified multiple times, once for each desired
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architecture. All CPU architectures will be printed by
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default.
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.. option:: -c, --show-children
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Show a debug info entry's children when using
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the :option:`--debug-info`, :option:`--find`,
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and :option:`--name` options.
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.. option:: -f <name>, --find=<name>
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Search for the exact text <name> in the accelerator tables
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and print the matching debug information entries.
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When there is no accelerator tables or the name of the DIE
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you are looking for is not found in the accelerator tables,
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try using the slower but more complete :option:`--name` option.
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.. option:: -F, --show-form
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Show DWARF form types after the DWARF attribute types.
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.. option:: -h, --help
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Show help and usage for this command.
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.. option:: -i, --ignore-case
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Ignore case distinctions in when searching entries by name
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or by regular expression.
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.. option:: -n <pattern>, --name=<pattern>
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Find and print all debug info entries whose name
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(`DW_AT_name` attribute) matches the exact text in
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<pattern>. Use the :option:`--regex` option to have
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<pattern> become a regular expression for more flexible
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pattern matching.
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.. option:: --lookup=<address>
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Lookup <address> in the debug information and print out the file,
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function, block, and line table details.
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.. option:: -o <path>, --out-file=<path>
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Redirect output to a file specified by <path>.
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.. option:: -p, --show-parents
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Show a debug info entry's parent objects when using the
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:option:`--debug-info`, :option:`--find`, and
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:option:`--name` options.
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.. option:: -r <n>, --recurse-depth=<n>
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Only recurse to a maximum depth of <n> when dumping debug info
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entries.
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.. option:: --statistics
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Collect debug info quality metrics and print the results
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as machine-readable single-line JSON output.
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.. option:: -x, --regex
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Treat any <pattern> strings as regular expressions when searching
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instead of just as an exact string match.
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.. option:: -u, --uuid
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Show the UUID for each architecture.
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.. option:: --diff
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Dump the output in a format that is more friendly for comparing
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DWARF output from two different files.
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.. option:: -v, --verbose
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Display verbose information when dumping. This can help to debug
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DWARF issues.
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.. option:: --verify
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Verify the structure of the DWARF information by verifying the
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compile unit chains, DIE relationships graph, address
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ranges, and more.
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.. option:: --version
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Display the version of the tool.
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.. option:: --debug-abbrev, --debug-aranges, --debug-cu-index, --debug-frame [=<offset>], --debug-gnu-pubnames, --debug-gnu-pubtypes, --debug-info [=<offset>], --debug-line [=<offset>], --debug-loc [=<offset>], --debug-macro, --debug-pubnames, --debug-pubtypes, --debug-ranges, --debug-str, --debug-str-offsets, --debug-tu-index, --debug-types, --eh-frame, --gdb-index, --apple-names, --apple-types, --apple-namespaces, --apple-objc
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Dump the specified DWARF section by name. Only the
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`.debug_info` section is shown by default. Some entries
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support adding an `=<offset>` as a way to provide an
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optional offset of the exact entry to dump within the
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respective section. When an offset is provided, only the
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entry at that offset will be dumped, else the entire
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section will be dumped. Children of items at a specific
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offset can be dumped by also using the
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:option:`--show-children` option where applicable.
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EXIT STATUS
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-----------
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:program:`llvm-dwarfdump` returns 0 if the input files were parsed and dumped
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successfully. Otherwise, it returns 1.
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SEE ALSO
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--------
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:manpage:`dsymutil(1)`
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