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' and 'Default'.
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. Not
35 DWARF link will take place.
36 --flat, -f
38 Produce a flat dSYM file. A .dwarf extension will be appended to
39 the executable name unless the output file is specified using
40 the -o option.
41 --gen-reproducer
43 Generate a reproducer consisting of the input object files.
44 --help, -h
46 Print this help output.
47 --minimize, -z
49 When used when creating a dSYM file, this option will suppress
50 the emission of the .debug_inlines, .debug_pubnames, and .de‐
51 bug_pubtypes sections since dsymutil currently has better equiv‐
52 alents: .apple_names and .apple_types. When used in conjunction
53 with --update option, this option will cause redundant accelera‐
54 tor tables to be removed.
55 --no-odr
57 Do not use ODR (One Definition Rule) for uniquing C++ types.
58 --no-output
60 Do the link in memory, but do not emit the result file.
61 --no-swiftmodule-timestamp
63 Don't check the timestamp for swiftmodule files.
64 --num-threads <threads>, -j <threads>
66 Specifies the maximum number (n) of simultaneous threads to use
67 when linking multiple architectures.
68 --object-prefix-map <prefix=remapped>
70 Remap object file paths (but no source paths) before processing.
71 Use this for Clang objects where the module cache location was
72 remapped using -fdebug-prefix-map; to help dsymutil find the
73 Clang module cache.
74 --oso-prepend-path <path>
76 Specifies a path to prepend to all debug symbol object file
77 paths.
78 --out <filename>, -o <filename>
80 Specifies an alternate path to place the dSYM bundle. The de‐
81 fault dSYM bundle path is created by appending .dSYM to the exe‐
82 cutable name.
83 --papertrail
85 When running dsymutil as part of your build system, it can be
86 desirable for warnings to be part of the end product, rather
87 than just being emitted to the output stream. When enabled warn‐
88 ings are embedded in the linked DWARF debug information.
89 --remarks-output-format <format>
91 Specify the format to be used when serializing the linked re‐
92 marks.
93 --remarks-prepend-path <path>
95 Specify a directory to prepend the paths of the external remark
96 files.
97 --statistics
99 Print statistics about the contribution of each object file to
100 the linked debug info. This prints a table after linking with
101 the object file name, the size of the debug info in the object
102 file (in bytes) and the size contributed (in bytes) to the
103 linked dSYM. The table is sorted by the output size listing the
104 obj ect files with the largest contribution first.
105 --symbol-map <bcsymbolmap>
107 Update the existing dSYMs inplace using symbol map specified.
108 -s, --symtab
110 Dumps the symbol table found in executable or object file(s) and
111 exits.
112 -S Output textual assembly instead of a binary dSYM companion file.
114 --toolchain <toolchain>
116 Embed the toolchain in the dSYM bundle's property list.
117 -u, --update
119 Update an existing dSYM file to contain the latest accelerator
120 tables and other DWARF optimizations. This option will rebuild
121 the '.apple_names' and '.apple_types' hashed accelerator tables.
122 --use-reproducer <path>
124 Use the object files from the given reproducer path.
125 --verbose
127 Display verbose information when linking.
128 --verify
130 Run the DWARF verifier on the linked DWARF debug info.
131 -v, --version
133 Display the version of the tool.
134 -y Treat executable as a YAML debug-map rather than an executable.
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138 dsymutil returns 0 if the DWARF debug information was linked success‐
139 fully. Otherwise, it returns 1.
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142 llvm-dwarfdump(1)
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145 Maintained by the LLVM Team (https://llvm.org/).
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148 2003-2021, LLVM Project
14911 2021-07-22 DSYMUTIL(1)