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all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
214 lines
4.7 KiB
Groff
214 lines
4.7 KiB
Groff
.\" $FreeBSD$
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.\" Man page generated from reStructuredText.
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.
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.TH "LLVM-NM" "1" "2014-01-01" "3.4" "LLVM"
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.SH NAME
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llvm-nm \- list LLVM bitcode and object file's symbol table
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.
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.nr rst2man-indent-level 0
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..
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.de1 INDENT
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.\" .rstReportMargin pre:
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.de UNINDENT
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. RE
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.\" indent \\n[an-margin]
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.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
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.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
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..
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.SH SYNOPSIS
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.sp
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\fBllvm\-nm\fP [\fIoptions\fP] [\fIfilenames...\fP]
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.SH DESCRIPTION
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.sp
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The \fBllvm\-nm\fP utility lists the names of symbols from the LLVM bitcode
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files, object files, or \fBar\fP archives containing them, named on the
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command line. Each symbol is listed along with some simple information about
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its provenance. If no file name is specified, or \fI\-\fP is used as a file name,
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\fBllvm\-nm\fP will process a file on its standard input stream.
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.sp
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\fBllvm\-nm\fP\(aqs default output format is the traditional BSD \fBnm\fP
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output format. Each such output record consists of an (optional) 8\-digit
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hexadecimal address, followed by a type code character, followed by a name, for
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each symbol. One record is printed per line; fields are separated by spaces.
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When the address is omitted, it is replaced by 8 spaces.
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.sp
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Type code characters currently supported, and their meanings, are as follows:
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.sp
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U
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.INDENT 0.0
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.INDENT 3.5
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Named object is referenced but undefined in this bitcode file
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.UNINDENT
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.UNINDENT
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.sp
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C
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.INDENT 0.0
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.INDENT 3.5
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Common (multiple definitions link together into one def)
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.UNINDENT
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.UNINDENT
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.sp
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W
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.INDENT 0.0
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.INDENT 3.5
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Weak reference (multiple definitions link together into zero or one definitions)
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.UNINDENT
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.UNINDENT
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.sp
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t
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.INDENT 0.0
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.INDENT 3.5
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Local function (text) object
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.UNINDENT
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.UNINDENT
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.sp
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T
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.INDENT 0.0
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.INDENT 3.5
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Global function (text) object
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.UNINDENT
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.UNINDENT
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.sp
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d
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.INDENT 0.0
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.INDENT 3.5
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Local data object
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.UNINDENT
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.UNINDENT
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.sp
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D
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.INDENT 0.0
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.INDENT 3.5
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Global data object
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.UNINDENT
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.UNINDENT
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.sp
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?
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.INDENT 0.0
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.INDENT 3.5
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Something unrecognizable
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.UNINDENT
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.UNINDENT
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.sp
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Because LLVM bitcode files typically contain objects that are not considered to
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have addresses until they are linked into an executable image or dynamically
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compiled "just\-in\-time", \fBllvm\-nm\fP does not print an address for any
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symbol in an LLVM bitcode file, even symbols which are defined in the bitcode
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file.
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.SH OPTIONS
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.INDENT 0.0
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.TP
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.B \-B (default)
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Use BSD output format. Alias for \fI\-\-format=bsd\fP\&.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-P
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Use POSIX.2 output format. Alias for \fI\-\-format=posix\fP\&.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-debug\-syms, \-a
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Show all symbols, even debugger only.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-defined\-only
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Print only symbols defined in this file (as opposed to
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symbols which may be referenced by objects in this file, but not
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defined in this file.)
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-dynamic, \-D
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Display dynamic symbols instead of normal symbols.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-extern\-only, \-g
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Print only symbols whose definitions are external; that is, accessible
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from other files.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-format=format, \-f format
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Select an output format; \fIformat\fP may be \fIsysv\fP, \fIposix\fP, or \fIbsd\fP\&. The default
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is \fIbsd\fP\&.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-help
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Print a summary of command\-line options and their meanings.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-no\-sort, \-p
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Shows symbols in order encountered.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-numeric\-sort, \-n, \-v
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Sort symbols by address.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-print\-file\-name, \-A, \-o
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Precede each symbol with the file it came from.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-print\-size, \-S
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Show symbol size instead of address.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-size\-sort
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Sort symbols by size.
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.UNINDENT
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.INDENT 0.0
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.TP
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.B \-\-undefined\-only, \-u
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Print only symbols referenced but not defined in this file.
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.UNINDENT
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.SH BUGS
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.INDENT 0.0
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.INDENT 3.5
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.INDENT 0.0
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.IP \(bu 2
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\fBllvm\-nm\fP cannot demangle C++ mangled names, like GNU \fBnm\fP
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can.
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.IP \(bu 2
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\fBllvm\-nm\fP does not support the full set of arguments that GNU
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\fBnm\fP does.
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.UNINDENT
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.UNINDENT
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.UNINDENT
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.SH EXIT STATUS
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.sp
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\fBllvm\-nm\fP exits with an exit code of zero.
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.SH SEE ALSO
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.sp
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llvm\-dis, ar(1), nm(1)
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.SH AUTHOR
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Maintained by The LLVM Team (http://llvm.org/).
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.SH COPYRIGHT
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2003-2013, LLVM Project
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.\" Generated by docutils manpage writer.
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