DragonFly On-Line Manual Pages

LLVM-NM(1)                           LLVM                           LLVM-NM(1)

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.

       --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.

BUGS

          o llvm-nm cannot demangle C++ mangled names, like GNU nm can.

          o 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 (http://llvm.org/).

COPYRIGHT
       2003-2014, LLVM Project

3.5                               2016-02-17                        LLVM-NM(1)