DSYMUTIL(1) LLVM DSYMUTIL(1)
NAME
dsymutil - manipulate archived DWARF debug symbol files
SYNOPSIS
dsymutil [options] executable
DESCRIPTION
dsymutil links the DWARF debug information found in the object files
for an executable executable by using debug symbols information con-
tained in its symbol table. By default, the linked debug information is
placed in a .dSYM bundle with the same name as the executable.
OPTIONS
--accelerator=<accelerator type>
Specify the desired type of accelerator table. Valid options are
‘Apple’, ‘Dwarf’, ‘Default’ and ‘None’.
--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.
Alias for –reproducer=GenerateOnExit.
--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 .de-
bug_pubtypes sections since dsymutil currently has better equiv-
alents: .apple_names and .apple_types. When used in conjunction
with --update option, this option will cause redundant accelera-
tor 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 de-
fault dSYM bundle path is created by appending .dSYM to the exe-
cutable 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 warn-
ings are embedded in the linked DWARF debug information.
--remarks-output-format <format>
Specify the format to be used when serializing the linked re-
marks.
--remarks-prepend-path <path>
Specify a directory to prepend the paths of the external remark
files.
--reproducer <mode>
Specify the reproducer generation mode. Valid options are ‘Gen-
erateOnExit’, ‘GenerateOnCrash’, ‘Use’, ‘Off’.
--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. Alias for
–reproducer=Use.
--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.
EXIT STATUS
dsymutil returns 0 if the DWARF debug information was linked success-
fully. Otherwise, it returns 1.
SEE ALSO
llvm-dwarfdump(1)
AUTHOR
Maintained by the LLVM Team (https://llvm.org/).
COPYRIGHT
2003-2023, LLVM Project
15 2023-10-16 DSYMUTIL(1)
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