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 contained 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  .debug_pubtypes  sections  since  dsymutil
              currently has better equivalents:  .apple_names  and  .apple_types.  When  used  in
              conjunction  with  --update  option,  this  option will cause redundant accelerator
              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 default dSYM bundle path
              is created by appending .dSYM to the executable 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  warnings  are  embedded  in  the  linked  DWARF  debug
              information.

       --remarks-output-format <format>
              Specify the format to be used when serializing the linked remarks.

       --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  ‘GenerateOnExit’,
              ‘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 successfully.  Otherwise,  it
       returns 1.

SEE ALSO

       llvm-dwarfdump(1)

AUTHOR

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

COPYRIGHT

       2003-2022, LLVM Project