DWARFDUMP(1)                          LLVM                          DWARFDUMP(1)

       dwarfdump - dump and verify DWARF debug information

       dwarfdump [options] [filename ...]

       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 --all is specified.

       If no input file is specified, a.out is used instead. If - is used as the
       input file, dwarfdump reads the input from its standard input stream.


       -a, --all
              Dump all supported DWARF sections.

              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 default.

       -c, --show-children
              Show a debug info entry's children when selectively printing with
              the =<offset> argument of --debug-info, or options such as --find
              or --name.

              Use colors in output.

       -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 --name option.

       -F, --show-form
              Show DWARF form types after the DWARF attribute types.

       -h, --help
              Show help and usage for this command.

              Show help and usage for this command without grouping the options
              into categories.

       -i, --ignore-case
              Ignore case distinctions when using --name.

       -n <name>, --name=<name>
              Find and print all debug info entries whose name (DW_AT_name
              attribute) is <name>.

              Look up <address> in the debug information and print out the file,
              function, block, and line table details.

       -o <path>
              Redirect output to a file specified by <path>, where - is the
              standard output stream.

       -p, --show-parents
              Show a debug info entry's parents when selectively printing with
              the =<offset> argument of --debug-info, or options such as --find
              or --name.

              When displaying debug info entry parents, only show them to a
              maximum depth of <N>.

              Use with --verify to not emit to STDOUT.

       -r <N>, --recurse-depth=<N>
              When displaying debug info entries, only show children to a
              maximum depth of <N>.

              Show the sizes of all debug sections, expressed in bytes.

              Collect debug info quality metrics and print the results as
              machine-readable single-line JSON output. The output format is
              described in the section below (FORMAT OF STATISTICS OUTPUT).

              Abbreviate the description of type unit entries.

       -x, --regex
              Treat any <name> strings as regular expressions when searching
              with --name. If --ignore-case is also specified, the regular
              expression becomes case-insensitive.

       -u, --uuid
              Show the UUID for each architecture.

       --diff Dump the output in a format that is more friendly for comparing
              DWARF output from two different files.

       -v, --verbose
              Display verbose information when dumping. This can help to debug
              DWARF issues.

              Verify the structure of the DWARF information by verifying the
              compile unit chains, DIE relationships graph, address ranges, and

              Display the version of the tool.

       --debug-abbrev, --debug-addr, --debug-aranges, --debug-cu-index,
       --debug-frame[=<offset>], --debug-gnu-pubnames, --debug-gnu-pubtypes,
       --debug-info [=<offset>], --debug-line [=<offset>], --debug-line-str,
       --debug-loc [=<offset>], --debug-loclists [=<offset>], --debug-macro,
       --debug-names, --debug-pubnames, --debug-pubtypes, --debug-ranges,
       --debug-rnglists, --debug-str, --debug-str-offsets, --debug-tu-index,
       --debug-types [=<offset>], --eh-frame [=<offset>], --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.

              Read command-line options from <FILE>.

       The :--statistics option generates single-line JSON output representing
       quality metrics of the processed debug info. These metrics are useful to
       compare changes between two compilers, particularly for judging the
       effect that a change to the compiler has on the debug info quality.

       The output is formatted as key-value pairs. The first pair contains a
       version number. The following naming scheme is used for the keys:

          • variables ==> local variables and parameters

          • local vars ==> local variables

          • params ==> formal parameters

       For aggregated values, the following keys are used:

          • sum_of_all_variables(...) ==> the sum applied to all variables

          • #bytes ==> the number of bytes

          • #variables - entry values ... ==> the number of variables excluding
            the entry values etc.

       dwarfdump returns 0 if the input files were parsed and dumped
       successfully. Otherwise, it returns 1.


       Maintained by the LLVM Team (https://llvm.org/).

       2003-2021, LLVM Project

Apple Clang 1300.0.29.30           2021-10-04                       DWARFDUMP(1)