llvm-dwarfdump - dump and verify DWARF debug information
llvm-dwarfdump [options] [filename ...]
LLVM-DWARFDUMP(1) LLVM LLVM-DWARFDUMP(1)
NAME
llvm-dwarfdump - dump and verify DWARF debug information
SYNOPSIS
llvm-dwarfdump [options] [filename ...]
DESCRIPTION
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 --all is specified.
If no input file is specified, a.out is used instead. If - is used as
the input file, llvm-dwarfdump reads the input from its standard input
stream.
OPTIONS
-a, --all
Dump all supported DWARF sections.
--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 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.
--color
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.
--help-list
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>.
--lookup=<address>
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.
--parent-recurse-depth=<N>
When displaying debug info entry parents, only show them to a
maximum depth of <N>.
--quiet
Use with --verify to not emit to STDOUT.
-r <N>, --recurse-depth=<N>
When displaying debug info entries, only show children to a max-
imum depth of <N>.
--show-section-sizes
Show the sizes of all debug sections, expressed in bytes.
--statistics
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).
--summarize-types
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
Verify the structure of the DWARF information by verifying the
compile unit chains, DIE relationships graph, address ranges,
and more.
--version
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.
@<FILE>
Read command-line options from <FILE>.
FORMAT OF STATISTICS OUTPUT
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:
o variables ==> local variables and parameters
o local vars ==> local variables
o params ==> formal parameters
For aggregated values, the following keys are used:
o sum_of_all_variables(...) ==> the sum applied to all variables
o #bytes ==> the number of bytes
o #variables - entry values ... ==> the number of variables exclud-
ing the entry values etc.
EXIT STATUS
llvm-dwarfdump returns 0 if the input files were parsed and dumped suc-
cessfully. Otherwise, it returns 1.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+---------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+---------------------+
|Availability | developer/llvm/llvm |
+---------------+---------------------+
|Stability | Uncommitted |
+---------------+---------------------+
SEE ALSO
dsymutil(1)
AUTHOR
Maintained by the LLVM Team (https://llvm.org/).
COPYRIGHT
2003-2022, LLVM Project
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://github.com/llvm/llvm-
project/releases/download/llvmorg-11.0.0/llvm-11.0.0.src.tar.xz.
Further information about this software can be found on the open source
community website at https://llvm.org/.
11 2022-06-28 LLVM-DWARFDUMP(1)