NAME

       llvm-nm - list LLVM bitcode and object file's symbol table

SYNOPSIS

       llvm-nm [options] [filenames…]

DESCRIPTION

       The  llvm-nm utility lists the names of symbols from the LLVM bitcode files, object files, or ar archives
       containing them, named on the command line.  Each symbol is listed along  with  some  simple  information
       about  its provenance.  If no file name is specified, or - is used as a file name, llvm-nm will process a
       file on its standard input stream.

       llvm-nm’s default output format is the traditional  BSD  nm  output  format.   Each  such  output  record
       consists  of  an (optional) 8-digit hexadecimal address, followed by a type code character, followed by a
       name, for each symbol.  One record is printed per line; fields are separated by spaces.  When the address
       is omitted, it is replaced by 8 spaces.

       Type code characters currently supported, and their meanings, are as follows:

       U
          Named object is referenced but undefined in this bitcode file

       C
          Common (multiple definitions link together into one def)

       W
          Weak reference (multiple definitions link together into zero or one definitions)

       t
          Local function (text) object

       T
          Global function (text) object

       d
          Local data object

       D
          Global data object

       ?
          Something unrecognizable

       Because LLVM bitcode files typically contain objects that are not considered to have addresses until they
       are linked into an executable image or dynamically compiled “just-in-time”, llvm-nm  does  not  print  an
       address for any symbol in an LLVM bitcode file, even symbols which are defined in the bitcode file.

OPTIONS

       -B (default)
              Use BSD output format.  Alias for –format=bsd.

       -P     Use POSIX.2 output format.  Alias for –format=posix.

       --debug-syms, -a
              Show all symbols, even debugger only.

       --defined-only
              Print  only symbols defined in this file (as opposed to symbols which may be referenced by objects
              in this file, but not defined in this file.)

       --dynamic, -D
              Display dynamic symbols instead of normal symbols.

       --extern-only, -g
              Print only symbols whose definitions are external; that is, accessible from other files.

       --no-weak, -W
              Don’t print any weak symbols in the output.

       --format=format, -f format
              Select an output format; format may be sysv, posix, or bsd.  The default is bsd.

       -help  Print a summary of command-line options and their meanings.

       --no-sort, -p
              Shows symbols in order encountered.

       --numeric-sort, -n, -v
              Sort symbols by address.

       --print-file-name, -A, -o
              Precede each symbol with the file it came from.

       --print-size, -S
              Show symbol size instead of address.

       --size-sort
              Sort symbols by size.

       --undefined-only, -u
              Print only symbols referenced but not defined in this file.

       --radix=RADIX, -t
              Specify the radix of the  symbol  address(es).  Values  accepted  d(decimal),  x(hexadecomal)  and
              o(octal).

BUGS

          • llvm-nm does not support the full set of arguments that GNU nm does.

EXIT STATUS

       llvm-nm exits with an exit code of zero.

SEE ALSO

       llvm-dis, ar(1), nm(1)

AUTHOR

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

COPYRIGHT

       2003-2020, LLVM Project