NAME

       llvm-link - LLVM bitcode linker

SYNOPSIS

       llvm-link [options] filename …

DESCRIPTION

       llvm-link  takes  several LLVM bitcode files and links them together into a single LLVM bitcode file.  It
       writes the output file to standard output, unless the -o option is used to specify a filename.

OPTIONS

       -f     Enable binary output on terminals.  Normally, llvm-link will refuse to write raw bitcode output if
              the output stream is a terminal. With this option, llvm-link will write raw bitcode regardless  of
              the output device.

       -o filename
              Specify  the  output  file  name.   If  filename  is  “-”, then llvm-link will write its output to
              standard output.

       -S     Write output in LLVM intermediate language (instead of bitcode).

       -d     If specified, llvm-link prints a human-readable version of the output  bitcode  file  to  standard
              error.

       --help Print a summary of command line options.

       -v     Verbose mode.  Print information about what llvm-link is doing.  This typically includes a message
              for each bitcode file linked in and for each library found.

       --override <filename>
              Adds the passed-in file to the link and overrides symbols that have already been declared with the
              definitions  in  the  file  that  is  passed in. This flag can be specified multiple times to have
              multiple files act as overrides. If a symbol is declared more than twice, the definition from  the
              file declared last takes precedence.

       --import <function:filename>
              Specify  a function that should be imported from the specified file for linking with ThinLTO. This
              option can be specified multiple times to import multiple functions.

       --summary-index <filename>
              Specify the path to a file containing the module summary index with  the  results  of  an  earlier
              ThinLTO link. This option is required when –import is used.

       --internalize
              Internalize the linked symbols.

       --disable-debug-info-type-map
              Disables the use of a uniquing type map for debug info.

       --only-needed
              Link only needed symbols.

       --disable-lazy-loading
              Disable lazy module loading.

       --suppress-warnings
              Suppress all linker warnings.

       --preserve-bc-uselistorder
              Preserve the use-list order when writing LLVM bitcode.

       --preserve-ll-uselistorder
              Preserve the use-list order when writing LLVM assembly.

       --ignore-non-bitcode
              Do not error out when a non-bitcode file is encountered while processing an archive.

EXIT STATUS

       If  llvm-link succeeds, it will exit with 0.  Otherwise, if an error occurs, it will exit with a non-zero
       value.

AUTHOR

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

COPYRIGHT

       2003-2024, LLVM Project

15                                                 2024-12-05                                       LLVM-LINK(1)