Move printing from bfd to nm and add POSIX and SysV compatibility.

This commit is contained in:
David MacKenzie
1993-05-21 21:09:58 +00:00
parent c881d68721
commit 6cfbdb50e6

View File

@ -633,28 +633,85 @@ The GNU linker @code{ld} is now described in a separate manual.
@smallexample
nm [ -a | --debug-syms ] [ -g | --extern-only ]
[ -s | --print-armap ] [ -o | --print-file-name ]
[ -n | --numeric-sort ] [ -p | --no-sort ]
[ -s | --print-armap ] [ -A | -o | --print-file-name ]
[ -n | -v | --numeric-sort ] [ -p | --no-sort ]
[ -r | --reverse-sort ] [ -u | --undefined-only ]
[ --target=@var{bfdname} ]
[ @var{objfile}@dots{} ]
[ -t @var{radix} | --radix=@var{radix} ] [ -P | --portability ]
[ --target=@var{bfdname} ] [ -f @var{format} | --format=@var{format} ]
[ -V | --version ] [ @var{objfile}@dots{} ]
@end smallexample
GNU @code{nm} lists the symbols from object files @var{objfile}@dots{}.
If no object files are listed as arguments, @code{nm} assumes
@file{a.out}.
For each symbol, @code{nm} shows:
@itemize @bullet
@item
The symbol value, in the radix selected by options (see below), or
hexadecimal by default.
@item
The symbol type. At least the following types are used; others are, as
well, depending on the object file format. If lowercase, the symbol is
local; if uppercase, the symbol is global (external).
@c Some more detail on exactly what these symbol types are used for
@c would be nice.
@table @code
@item A
Absolute.
@item B
BSS (uninitialized data).
@item C
Common.
@item D
Initialized data.
@item I
Indirect reference.
@item T
Text (program code).
@item U
Undefined.
@end table
@item
The symbol name.
@end itemize
The long and short forms of options, shown here as alternatives, are
equivalent.
@table @code
@item @var{objfile}@dots{}
@kindex a.out
Object files whose symbols are to be listed. If no object files are
listed as arguments, @code{nm} assumes @samp{a.out}.
@item -A
@itemx -o
@itemx --print-file-name
@cindex input file name
@cindex file name
@cindex source file name
Precede each symbol by the name of the input file (or archive element)
in which it was found, rather than identifying the input file once only,
before all of its symbols.
@item -a
@itemx --debug-syms
@cindex debugging symbols
Display debugger-only symbols; normally these are not listed.
Display all symbols, even debugger-only symbols; normally these are not
listed.
@item -f @var{format}
@itemx --format=@var{format}
Use the output format @var{format}, which can be @code{bsd},
@code{sysv}, or @code{posix}. The default is @code{bsd}.
Only the first character of @var{format} is significant, it can be
either upper or lower case.
@item -g
@itemx --extern-only
@ -664,10 +721,16 @@ Display only external symbols.
@item -p
@itemx --no-sort
@cindex sorting symbols
Don't bother to sort the symbols in any order; just print them in the
order encountered.
Don't bother to sort the symbols in any order; print them in the order
encountered.
@item -P
@itemx --portability
Use the POSIX.2 standard output format instead of the default format.
Equivalent to @samp{-f posix}.
@item -n
@itemx -v
@itemx --numeric-sort
Sort symbols numerically by their addresses, rather than alphabetically
by their names.
@ -679,26 +742,20 @@ When listing symbols from archive members, include the index: a mapping
(stored in the archive by @code{ar} or @code{ranlib}) of which modules
contain definitions for which names.
@item -o
@itemx --print-file-name
@cindex input file name
@cindex file name
@cindex source file name
Precede each symbol by the name of the input file where it was found,
rather than identifying the input file once only before all of its
symbols.
@item -r
@itemx --reverse-sort
Reverse the order of the sort (whether numeric or alphabetic); let the
last come first.
@item -t @var{radix}
@itemx --radix=@var{radix}
Use @var{radix} as the radix for printing the symbol values. It must be
@samp{d} for decimal, @samp{o} for octal, or @samp{x} for hexadecimal.
@item --target=@var{bfdname}
@c @item --target
@cindex object code format
Specify an object code format other than your system's default format.
@xref{objdump}, for information on listing available formats.
@c FIXME what *does* --target/no arg do?
@item -u
@itemx --undefined-only
@ -706,6 +763,9 @@ Specify an object code format other than your system's default format.
@cindex undefined symbols
Display only undefined symbols (those external to each object file).
@item -V
@itemx --version
Show the version number of @code{nm}.
@end table
@node objdump, ranlib, nm, Top