dsymutil - manipulate archived DWARF debug symbol files
dsymutil [options] executable
dsymutil links the DWARF debug information found in the object files for
an executable
executable by using debug symbols information contained
in its symbol table. By default, the linked debug information is placed in a
.dSYM bundle with the same name as the executable.
- --accelerator=<accelerator type>
- Specify the desired type of accelerator table. Valid
options are ‘Apple’, ‘Dwarf’ and
‘Default’.
- --arch <arch>
- Link DWARF debug information only for specified CPU
architecture types. Architectures may be specified by name. When using
this option, an error will be returned if any architectures can not be
properly linked. This option can be specified multiple times, once for
each desired architecture. All CPU architectures will be linked by default
and any architectures that can’t be properly linked will cause
dsymutil to return an error.
- --dump-debug-map
- Dump the executable’s debug-map (the list of
the object files containing the debug information) in YAML format and
exit. No DWARF link will take place.
- --flat, -f
- Produce a flat dSYM file. A .dwarf extension will be
appended to the executable name unless the output file is specified using
the -o option.
- --gen-reproducer
- Generate a reproducer consisting of the input object
files.
- --help, -h
- Print this help output.
- --keep-function-for-static
- Make a static variable keep the enclosing function even if
it would have been omitted otherwise.
- --minimize, -z
- When used when creating a dSYM file, this option will
suppress the emission of the .debug_inlines, .debug_pubnames, and
.debug_pubtypes sections since dsymutil currently has better equivalents:
.apple_names and .apple_types. When used in conjunction with
--update option, this option will cause redundant accelerator
tables to be removed.
- --no-odr
- Do not use ODR (One Definition Rule) for uniquing C++
types.
- --no-output
- Do the link in memory, but do not emit the result
file.
- --no-swiftmodule-timestamp
- Don’t check the timestamp for swiftmodule
files.
- --num-threads <threads>, -j
<threads>
- Specifies the maximum number (n) of simultaneous
threads to use when linking multiple architectures.
- --object-prefix-map <prefix=remapped>
- Remap object file paths (but no source paths) before
processing. Use this for Clang objects where the module cache location was
remapped using -fdebug-prefix-map; to help dsymutil find the Clang
module cache.
- --oso-prepend-path <path>
- Specifies a path to prepend to all debug symbol
object file paths.
- --out <filename>, -o <filename>
- Specifies an alternate path to place the dSYM
bundle. The default dSYM bundle path is created by appending .dSYM
to the executable name.
- --papertrail
- When running dsymutil as part of your build system, it can
be desirable for warnings to be part of the end product, rather than just
being emitted to the output stream. When enabled warnings are embedded in
the linked DWARF debug information.
- --remarks-output-format <format>
- Specify the format to be used when serializing the linked
remarks.
- --remarks-prepend-path <path>
- Specify a directory to prepend the paths of the external
remark files.
- --statistics
- Print statistics about the contribution of each object file
to the linked debug info. This prints a table after linking with the
object file name, the size of the debug info in the object file (in bytes)
and the size contributed (in bytes) to the linked dSYM. The table is
sorted by the output size listing the object files with the largest
contribution first.
- --symbol-map <bcsymbolmap>
- Update the existing dSYMs inplace using symbol map
specified.
- -s, --symtab
- Dumps the symbol table found in executable or object
file(s) and exits.
- -S
- Output textual assembly instead of a binary dSYM companion
file.
- --toolchain <toolchain>
- Embed the toolchain in the dSYM bundle’s property
list.
- -u, --update
- Update an existing dSYM file to contain the latest
accelerator tables and other DWARF optimizations. This option will rebuild
the ‘.apple_names’ and ‘.apple_types’ hashed
accelerator tables.
- --use-reproducer <path>
- Use the object files from the given reproducer path.
- --verbose
- Display verbose information when linking.
- --verify
- Run the DWARF verifier on the linked DWARF debug info.
- -v, --version
- Display the version of the tool.
- -y
- Treat executable as a YAML debug-map rather than an
executable.
dsymutil returns 0 if the DWARF debug information was linked
successfully. Otherwise, it returns 1.
llvm-dwarfdump(1)
Maintained by the LLVM Team (
https://llvm.org/).
2003-2023, LLVM Project