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Updated: Wednesday, July 27, 2022

dsymutil (1)


dsymutil - manipulate archived DWARF debug symbol files


dsymutil [options] executable


DSYMUTIL(1)                          LLVM                          DSYMUTIL(1)

       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  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.

       --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  the  executable's  debug-map (the list of the object files
              containing the debug information) in YAML format and  exit.  Not
              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.

              Generate a reproducer consisting of the input object files.

       --help, -h
              Print this help output.

       --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  con-
              junction  with --update option, this option will cause redundant
              accelerator tables to be removed.

              Do not use ODR (One Definition Rule) for uniquing C++ types.

              Do the link in memory, but do not emit the result file.

              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

       --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.

              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

       --remarks-prepend-path <path>
              Specify  a directory to prepend the paths of the external remark

              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
              obj ect 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

       -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.

              Display verbose information when linking.

              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  success-
       fully. Otherwise, it returns 1.

       See attributes(7) for descriptions of the following attributes:

       |Availability   | developer/llvm/llvm |
       |Stability      | Uncommitted         |


       Maintained by the LLVM Team (https://llvm.org/).

       2003-2022, LLVM Project

       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-

       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source     was     downloaded    from     https://github.com/llvm/llvm-

       Further information about this software can be found on the open source
       community website at https://llvm.org/.

11                                2022-06-28                       DSYMUTIL(1)