1DSYMUTIL(1) LLVM DSYMUTIL(1)
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6 dsymutil - manipulate archived DWARF debug symbol files
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9 dsymutil [options] executable
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13 dsymutil links the DWARF debug information found in the object files
14 for an executable executable by using debug symbols information con‐
15 tained in its symbol table. By default, the linked debug information is
16 placed in a .dSYM bundle with the same name as the executable.
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19 --accelerator=<accelerator type>
20 Specify the desired type of accelerator table. Valid options are
21 'Apple', 'Dwarf', 'Default' and 'None'.
22 --arch <arch>
24 Link DWARF debug information only for specified CPU architecture
25 types. Architectures may be specified by name. When using this
26 option, an error will be returned if any architectures can not
27 be properly linked. This option can be specified multiple
28 times, once for each desired architecture. All CPU architectures
29 will be linked by default and any architectures that can't be
30 properly linked will cause dsymutil to return an error.
31 --dump-debug-map
33 Dump the executable's debug-map (the list of the object files
34 containing the debug information) in YAML format and exit. No
35 DWARF link will take place.
36 --fat64
38 Use a 64-bit header when emitting universal binaries.
39 --flat, -f
41 Produce a flat dSYM file. A .dwarf extension will be appended to
42 the executable name unless the output file is specified using
43 the -o option.
44 --gen-reproducer
46 Generate a reproducer consisting of the input object files.
47 Alias for --reproducer=GenerateOnExit.
48 --help, -h
50 Print this help output.
51 --keep-function-for-static
53 Make a static variable keep the enclosing function even if it
54 would have been omitted otherwise.
55 --minimize, -z
57 When used when creating a dSYM file, this option will suppress
58 the emission of the .debug_inlines, .debug_pubnames, and .de‐
59 bug_pubtypes sections since dsymutil currently has better equiv‐
60 alents: .apple_names and .apple_types. When used in conjunction
61 with --update option, this option will cause redundant accelera‐
62 tor tables to be removed.
63 --no-odr
65 Do not use ODR (One Definition Rule) for uniquing C++ types.
66 --no-output
68 Do the link in memory, but do not emit the result file.
69 --no-swiftmodule-timestamp
71 Don't check the timestamp for swiftmodule files.
72 --num-threads <threads>, -j <threads>
74 Specifies the maximum number (n) of simultaneous threads to use
75 when linking multiple architectures.
76 --object-prefix-map <prefix=remapped>
78 Remap object file paths (but no source paths) before processing.
79 Use this for Clang objects where the module cache location was
80 remapped using -fdebug-prefix-map; to help dsymutil find the
81 Clang module cache.
82 --oso-prepend-path <path>
84 Specifies a path to prepend to all debug symbol object file
85 paths.
86 --out <filename>, -o <filename>
88 Specifies an alternate path to place the dSYM bundle. The de‐
89 fault dSYM bundle path is created by appending .dSYM to the exe‐
90 cutable name.
91 --papertrail
93 When running dsymutil as part of your build system, it can be
94 desirable for warnings to be part of the end product, rather
95 than just being emitted to the output stream. When enabled warn‐
96 ings are embedded in the linked DWARF debug information.
97 --remarks-drop-without-debug
99 Drop remarks without valid debug locations. Without this flags,
100 all remarks are kept.
101 --remarks-output-format <format>
103 Specify the format to be used when serializing the linked re‐
104 marks.
105 --remarks-prepend-path <path>
107 Specify a directory to prepend the paths of the external remark
108 files.
109 --reproducer <mode>
111 Specify the reproducer generation mode. Valid options are 'Gen‐
112 erateOnExit', 'GenerateOnCrash', 'Use', 'Off'.
113 --statistics
115 Print statistics about the contribution of each object file to
116 the linked debug info. This prints a table after linking with
117 the object file name, the size of the debug info in the object
118 file (in bytes) and the size contributed (in bytes) to the
119 linked dSYM. The table is sorted by the output size listing the
120 object files with the largest contribution first.
121 --symbol-map <bcsymbolmap>
123 Update the existing dSYMs inplace using symbol map specified.
124 -s, --symtab
126 Dumps the symbol table found in executable or object file(s) and
127 exits.
128 -S Output textual assembly instead of a binary dSYM companion file.
130 --toolchain <toolchain>
132 Embed the toolchain in the dSYM bundle's property list.
133 -u, --update
135 Update an existing dSYM file to contain the latest accelerator
136 tables and other DWARF optimizations. This option will rebuild
137 the '.apple_names' and '.apple_types' hashed accelerator tables.
138 --use-reproducer <path>
140 Use the object files from the given reproducer path. Alias for
141 --reproducer=Use.
142 --verbose
144 Display verbose information when linking.
145 --verify
147 Run the DWARF verifier on the linked DWARF debug info.
148 -v, --version
150 Display the version of the tool.
151 -y Treat executable as a YAML debug-map rather than an executable.
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155 dsymutil returns 0 if the DWARF debug information was linked success‐
156 fully. Otherwise, it returns 1.
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159 llvm-dwarfdump(1)
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162 Maintained by the LLVM Team (https://llvm.org/).
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165 2003-2023, LLVM Project
16617 2023-11-28 DSYMUTIL(1)