mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
147 lines
3.3 KiB
ReStructuredText
147 lines
3.3 KiB
ReStructuredText
llvm-nm - list LLVM bitcode and object file's symbol table
|
|
==========================================================
|
|
|
|
SYNOPSIS
|
|
--------
|
|
|
|
:program:`llvm-nm` [*options*] [*filenames...*]
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
|
|
The :program:`llvm-nm` utility lists the names of symbols from the LLVM bitcode
|
|
files, object files, or :program:`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,
|
|
:program:`llvm-nm` will process a file on its standard input stream.
|
|
|
|
:program:`llvm-nm`'s default output format is the traditional BSD :program:`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", :program:`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
|
|
-------
|
|
|
|
.. program:: llvm-nm
|
|
|
|
.. option:: -B (default)
|
|
|
|
Use BSD output format. Alias for :option:`--format=bsd`.
|
|
|
|
.. option:: -P
|
|
|
|
Use POSIX.2 output format. Alias for :option:`--format=posix`.
|
|
|
|
.. option:: --debug-syms, -a
|
|
|
|
Show all symbols, even debugger only.
|
|
|
|
.. option:: --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.)
|
|
|
|
.. option:: --dynamic, -D
|
|
|
|
Display dynamic symbols instead of normal symbols.
|
|
|
|
.. option:: --extern-only, -g
|
|
|
|
Print only symbols whose definitions are external; that is, accessible
|
|
from other files.
|
|
|
|
.. option:: --format=format, -f format
|
|
|
|
Select an output format; *format* may be *sysv*, *posix*, or *bsd*. The default
|
|
is *bsd*.
|
|
|
|
.. option:: -help
|
|
|
|
Print a summary of command-line options and their meanings.
|
|
|
|
.. option:: --no-sort, -p
|
|
|
|
Shows symbols in order encountered.
|
|
|
|
.. option:: --numeric-sort, -n, -v
|
|
|
|
Sort symbols by address.
|
|
|
|
.. option:: --print-file-name, -A, -o
|
|
|
|
Precede each symbol with the file it came from.
|
|
|
|
.. option:: --print-size, -S
|
|
|
|
Show symbol size instead of address.
|
|
|
|
.. option:: --size-sort
|
|
|
|
Sort symbols by size.
|
|
|
|
.. option:: --undefined-only, -u
|
|
|
|
Print only symbols referenced but not defined in this file.
|
|
|
|
BUGS
|
|
----
|
|
|
|
* :program:`llvm-nm` cannot demangle C++ mangled names, like GNU :program:`nm`
|
|
can.
|
|
|
|
* :program:`llvm-nm` does not support the full set of arguments that GNU
|
|
:program:`nm` does.
|
|
|
|
EXIT STATUS
|
|
-----------
|
|
|
|
:program:`llvm-nm` exits with an exit code of zero.
|
|
|
|
SEE ALSO
|
|
--------
|
|
|
|
llvm-dis, ar(1), nm(1)
|