blob: a3b62664cbe54b904fcbc5607df0ba1396e88452 [file] [log] [blame]
llvm-dwarfdump - dump and verify DWARF debug information
:program:`llvm-dwarfdump` [*options*] [*filename ...*]
:program:`llvm-dwarfdump` parses DWARF sections in object files,
archives, and `.dSYM` bundles and prints their contents in
human-readable form. Only the .debug_info section is printed unless one of
the section-specific options or :option:`--all` is specified.
.. option:: -a, --all
Disassemble all supported DWARF sections.
.. option:: --arch=<arch>
Dump DWARF debug information for the specified CPU architecture.
Architectures may be specified by name or by number. This
option can be specified multiple times, once for each desired
architecture. All CPU architectures will be printed by
.. option:: -c, --show-children
Show a debug info entry's children when using
the :option:`--debug-info`, :option:`--find`,
and :option:`--name` options.
.. option:: -f <name>, --find=<name>
Search for the exact text <name> in the accelerator tables
and print the matching debug information entries.
When there is no accelerator tables or the name of the DIE
you are looking for is not found in the accelerator tables,
try using the slower but more complete :option:`--name` option.
.. option:: -F, --show-form
Show DWARF form types after the DWARF attribute types.
.. option:: -h, --help
Show help and usage for this command.
.. option:: -i, --ignore-case
Ignore case distinctions in when searching entries by name
or by regular expression.
.. option:: -n <pattern>, --name=<pattern>
Find and print all debug info entries whose name
(`DW_AT_name` attribute) matches the exact text in
<pattern>. Use the :option:`--regex` option to have
<pattern> become a regular expression for more flexible
pattern matching.
.. option:: --lookup=<address>
Lookup <address> in the debug information and print out the file,
function, block, and line table details.
.. option:: -o <path>, --out-file=<path>
Redirect output to a file specified by <path>.
.. option:: -p, --show-parents
Show a debug info entry's parent objects when using the
:option:`--debug-info`, :option:`--find`, and
:option:`--name` options.
.. option:: -r <n>, --recurse-depth=<n>
Only recurse to a maximum depth of <n> when dumping debug info
.. option:: --statistics
Collect debug info quality metrics and print the results
as machine-readable single-line JSON output.
.. option:: -x, --regex
Treat any <pattern> strings as regular expressions when searching
instead of just as an exact string match.
.. option:: -u, --uuid
Show the UUID for each architecture.
.. option:: --diff
Dump the output in a format that is more friendly for comparing
DWARF output from two different files.
.. option:: -v, --verbose
Display verbose information when dumping. This can help to debug
DWARF issues.
.. option:: --verify
Verify the structure of the DWARF information by verifying the
compile unit chains, DIE relationships graph, address
ranges, and more.
.. option:: --version
Display the version of the tool.
.. 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
Dump the specified DWARF section by name. Only the
`.debug_info` section is shown by default. Some entries
support adding an `=<offset>` as a way to provide an
optional offset of the exact entry to dump within the
respective section. When an offset is provided, only the
entry at that offset will be dumped, else the entire
section will be dumped. Children of items at a specific
offset can be dumped by also using the
:option:`--show-children` option where applicable.
:program:`llvm-dwarfdump` returns 0 if the input files were parsed and dumped
successfully. Otherwise, it returns 1.