1 dsymutil - manipulate archived DWARF debug symbol files
2 =======================================================
7 | :program:`dsymutil` [*options*] *executable*
12 :program:`dsymutil` links the DWARF debug information found in the object files
13 for an executable *executable* by using debug symbols information contained in
14 its symbol table. By default, the linked debug information is placed in a
15 ``.dSYM`` bundle with the same name as the executable.
19 .. option:: --arch=<arch>
21 Link DWARF debug information only for specified CPU architecture types.
22 Architectures may be specified by name. When using this option, an error will
23 be returned if any architectures can not be properly linked. This option can
24 be specified multiple times, once for each desired architecture. All CPU
25 architectures will be linked by default and any architectures that can't be
26 properly linked will cause :program:`dsymutil` to return an error.
28 .. option:: --dump-debug-map
30 Dump the *executable*'s debug-map (the list of the object files containing the
31 debug information) in YAML format and exit. Not DWARF link will take place.
33 .. option:: -f, --flat
35 Produce a flat dSYM file. A ``.dwarf`` extension will be appended to the
36 executable name unless the output file is specified using the -o option.
39 .. option:: -z, --minimize
41 When used when creating a dSYM file, this option will suppress the emission of
42 the .debug_inlines, .debug_pubnames, and .debug_pubtypes sections since
43 dsymutil currently has better equivalents: .apple_names and .apple_types. When
44 used in conjunction with --update option, this option will cause redundant
45 accelerator tables to be removed.
49 Do not use ODR (One Definition Rule) for uniquing C++ types.
51 .. option:: --no-output
53 Do the link in memory, but do not emit the result file.
55 .. option:: --no-swiftmodule-timestamp
57 Don't check the timestamp for swiftmodule files.
59 .. option:: -j <n>, --num-threads=<n>
61 Specifies the maximum number (``n``) of simultaneous threads to use when
62 linking multiple architectures.
64 .. option:: -o <filename>
66 Specifies an alternate ``path`` to place the dSYM bundle. The default dSYM
67 bundle path is created by appending ``.dSYM`` to the executable name.
69 .. option:: --oso-prepend-path=<path>
71 Specifies a ``path`` to prepend to all debug symbol object file paths.
73 .. option:: --papertrail
75 When running dsymutil as part of your build system, it can be desirable for
76 warnings to be part of the end product, rather than just being emitted to the
77 output stream. When enabled warnings are embedded in the linked DWARF debug
80 .. option:: -s, --symtab
82 Dumps the symbol table found in *executable* or object file(s) and exits.
84 .. option:: --toolchain
86 Embed the toolchain in the dSYM bundle's property list.
88 .. option:: -u, --update
90 Update an existing dSYM file to contain the latest accelerator tables and
91 other DWARF optimizations. This option will rebuild the '.apple_names' and
92 '.apple_types' hashed accelerator tables.
94 .. option:: -v, --verbose
96 Display verbose information when linking.
100 Display the version of the tool.
104 Treat *executable* as a YAML debug-map rather than an executable.
109 :program:`dsymutil` returns 0 if the DWARF debug information was linked
110 successfully. Otherwise, it returns 1.
115 :manpage:`llvm-dwarfdump(1)`