3716 lines
149 KiB
Plaintext
3716 lines
149 KiB
Plaintext
This is binutils.info, produced by makeinfo version 4.8 from
|
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/home/xpgcust/tree/RI-2019.1/ib/p4root/Xtensa/Software/binutils/binutils/doc/binutils.texi.
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10/2018
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Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
|
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2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
|
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2012, 2013 Free Software Foundation, Inc.
|
||
|
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Copyright (C) 1999-2013 Tensilica, Inc.
|
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|
||
Permission is granted to copy, distribute and/or modify this document
|
||
under the terms of the GNU Free Documentation License, Version 1.3 or
|
||
any later version published by the Free Software Foundation; with no
|
||
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
|
||
Texts. A copy of the license is included in the section entitled "GNU
|
||
Free Documentation License".
|
||
|
||
This publication is provided "AS IS." Tensilica, Inc. (hereafter
|
||
"Tensilica") does not make any warranty of any kind, either expressed
|
||
or implied, including, but not limited to, the implied warranties of
|
||
merchantability and fitness for a particular purpose. Information in
|
||
this document is provided solely to enable system and software
|
||
developers to use Tensilica(R) processors. Unless specifically set
|
||
forth herein, there are no express or implied patent, copyright or any
|
||
other intellectual property rights or licenses granted hereunder to
|
||
design or fabricate Tensilica integrated circuits or integrated
|
||
circuits based on the information in this document. Tensilica does not
|
||
warrant that the contents of this publication, whether individually or
|
||
as one or more groups, meets your requirements or that the publication
|
||
is error-free. This publication could include technical inaccuracies
|
||
or typographical errors. Changes may be made to the information
|
||
herein, and these changes may be incorporated in new editions of this
|
||
publication.
|
||
|
||
The following terms are trademarks or registered trademarks of
|
||
Tensilica, Inc.: FLIX, OSKit, Sea of Processors, Tensilica, Vectra,
|
||
Xplorer, XPRES, and Xtensa. All other trademarks and registered
|
||
trademarks are the property of their respective companies.
|
||
|
||
|
||
File: binutils.info, Node: Top, Next: Revisions, Up: (dir)
|
||
|
||
GNU Binary Utilities User's Guide
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*********************************
|
||
|
||
This brief manual contains documentation for the GNU binary utilities
|
||
Version 2.23.2 for Xtensa Tools Version 14.
|
||
|
||
This document is distributed under the terms of the GNU Free
|
||
Documentation License. A copy of the license is included in the
|
||
section entitled "GNU Free Documentation License".
|
||
|
||
* Menu:
|
||
|
||
|
||
* Revisions:: Changes from previous versions.
|
||
|
||
* ar:: Create, modify, and extract from archives
|
||
* nm:: List symbols from object files
|
||
* objcopy:: Copy and translate object files
|
||
* objdump:: Display information from object files
|
||
* ranlib:: Generate index to archive contents
|
||
* readelf:: Display the contents of ELF format files.
|
||
* size:: List section sizes and total size
|
||
* strings:: List printable strings from files
|
||
* strip:: Discard symbols
|
||
* elfedit:: Update the ELF header of ELF files
|
||
* c++filt:: Filter to demangle encoded C++ symbols
|
||
* cxxfilt: c++filt. MS-DOS name for c++filt
|
||
* addr2line:: Convert addresses to file and line
|
||
|
||
* Common Options:: Command-line options for all utilities
|
||
|
||
* GNU Free Documentation License:: GNU Free Documentation License
|
||
|
||
* History:: History of this document.
|
||
|
||
* Binutils Index:: Index
|
||
|
||
|
||
File: binutils.info, Node: Revisions, Next: ar, Prev: Top, Up: Top
|
||
|
||
Changes from Previous Versions
|
||
******************************
|
||
|
||
The following changes were made to this document for the Xtensa Tools
|
||
version 11.0 released in the Tensilica RF-2014.0 release:
|
||
|
||
Xtensa Tools:
|
||
|
||
* Upgraded from version 2.20 to version 2.23.2 of the GNU Binary
|
||
Utilities.
|
||
|
||
|
||
File: binutils.info, Node: ar, Next: nm, Prev: Revisions, Up: Top
|
||
|
||
1 ar
|
||
****
|
||
|
||
xt-ar [-]P[MOD [RELPOS] [COUNT]] [`--target' BFDNAME] ARCHIVE [MEMBER...]
|
||
|
||
The GNU `ar' program creates, modifies, and extracts from archives.
|
||
An "archive" is a single file holding a collection of other files in a
|
||
structure that makes it possible to retrieve the original individual
|
||
files (called "members" of the archive).
|
||
|
||
The original files' contents, mode (permissions), timestamp, owner,
|
||
and group are preserved in the archive, and can be restored on
|
||
extraction.
|
||
|
||
GNU `ar' can maintain archives whose members have names of any
|
||
length; however, depending on how `ar' is configured on your system, a
|
||
limit on member-name length may be imposed for compatibility with
|
||
archive formats maintained with other tools. If it exists, the limit
|
||
is often 15 characters (typical of formats related to a.out) or 16
|
||
characters (typical of formats related to coff).
|
||
|
||
`ar' is considered a binary utility because archives of this sort
|
||
are most often used as "libraries" holding commonly needed subroutines.
|
||
|
||
`ar' creates an index to the symbols defined in relocatable object
|
||
modules in the archive when you specify the modifier `s'. Once
|
||
created, this index is updated in the archive whenever `ar' makes a
|
||
change to its contents (save for the `q' update operation). An archive
|
||
with such an index speeds up linking to the library, and allows
|
||
routines in the library to call each other without regard to their
|
||
placement in the archive.
|
||
|
||
You may use `xt-nm -s' or `xt-nm --print-armap' to list this index
|
||
table. If an archive lacks the table, another form of `ar' called
|
||
`ranlib' can be used to add just the table.
|
||
|
||
GNU `ar' can optionally create a _thin_ archive, which contains a
|
||
symbol index and references to the original copies of the member files
|
||
of the archives. Such an archive is useful for building libraries for
|
||
use within a local build, where the relocatable objects are expected to
|
||
remain available, and copying the contents of each object would only
|
||
waste time and space. Thin archives are also _flattened_, so that
|
||
adding one or more archives to a thin archive will add the elements of
|
||
the nested archive individually. The paths to the elements of the
|
||
archive are stored relative to the archive itself.
|
||
|
||
`xt-ar' insists on at least two arguments to execute: one keyletter
|
||
specifying the _operation_ (optionally accompanied by other keyletters
|
||
specifying _modifiers_), and the archive name to act on.
|
||
|
||
Most operations can also accept further MEMBER arguments, specifying
|
||
particular files to operate on.
|
||
|
||
GNU `ar' allows you to mix the operation code P and modifier flags
|
||
MOD in any order, within the first command-line argument.
|
||
|
||
If you wish, you may begin the first command-line argument with a
|
||
dash.
|
||
|
||
The P keyletter specifies what operation to execute; it may be any
|
||
of the following, but you must specify only one of them:
|
||
|
||
`d'
|
||
_Delete_ modules from the archive. Specify the names of modules to
|
||
be deleted as MEMBER...; the archive is untouched if you specify
|
||
no files to delete.
|
||
|
||
If you specify the `v' modifier, `ar' lists each module as it is
|
||
deleted.
|
||
|
||
`m'
|
||
Use this operation to _move_ members in an archive.
|
||
|
||
The ordering of members in an archive can make a difference in how
|
||
programs are linked using the library, if a symbol is defined in
|
||
more than one member.
|
||
|
||
If no modifiers are used with `m', any members you name in the
|
||
MEMBER arguments are moved to the _end_ of the archive; you can
|
||
use the `a', `b', or `i' modifiers to move them to a specified
|
||
place instead.
|
||
|
||
`p'
|
||
_Print_ the specified members of the archive, to the standard
|
||
output file. If the `v' modifier is specified, show the member
|
||
name before copying its contents to standard output.
|
||
|
||
If you specify no MEMBER arguments, all the files in the archive
|
||
are printed.
|
||
|
||
`q'
|
||
_Quick append_; Historically, add the files MEMBER... to the end of
|
||
ARCHIVE, without checking for replacement.
|
||
|
||
The modifiers `a', `b', and `i' do _not_ affect this operation;
|
||
new members are always placed at the end of the archive.
|
||
|
||
The modifier `v' makes `ar' list each file as it is appended.
|
||
|
||
Since the point of this operation is speed, the archive's symbol
|
||
table index is not updated, even if it already existed; you can
|
||
use `xt-ar s' or `xt-ranlib' explicitly to update the symbol table
|
||
index.
|
||
|
||
However, too many different systems assume quick append rebuilds
|
||
the index, so GNU `ar' implements `q' as a synonym for `r'.
|
||
|
||
`r'
|
||
Insert the files MEMBER... into ARCHIVE (with _replacement_). This
|
||
operation differs from `q' in that any previously existing members
|
||
are deleted if their names match those being added.
|
||
|
||
If one of the files named in MEMBER... does not exist, `ar'
|
||
displays an error message, and leaves undisturbed any existing
|
||
members of the archive matching that name.
|
||
|
||
By default, new members are added at the end of the file; but you
|
||
may use one of the modifiers `a', `b', or `i' to request placement
|
||
relative to some existing member.
|
||
|
||
The modifier `v' used with this operation elicits a line of output
|
||
for each file inserted, along with one of the letters `a' or `r'
|
||
to indicate whether the file was appended (no old member deleted)
|
||
or replaced.
|
||
|
||
`s'
|
||
Add an index to the archive, or update it if it already exists.
|
||
Note this command is an exception to the rule that there can only
|
||
be one command letter, as it is possible to use it as either a
|
||
command or a modifier. In either case it does the same thing.
|
||
|
||
`t'
|
||
Display a _table_ listing the contents of ARCHIVE, or those of the
|
||
files listed in MEMBER... that are present in the archive.
|
||
Normally only the member name is shown; if you also want to see
|
||
the modes (permissions), timestamp, owner, group, and size, you can
|
||
request that by also specifying the `v' modifier.
|
||
|
||
If you do not specify a MEMBER, all files in the archive are
|
||
listed.
|
||
|
||
If there is more than one file with the same name (say, `fie') in
|
||
an archive (say `b.a'), `xt-ar t b.a fie' lists only the first
|
||
instance; to see them all, you must ask for a complete listing--in
|
||
our example, `xt-ar t b.a'.
|
||
|
||
`x'
|
||
_Extract_ members (named MEMBER) from the archive. You can use
|
||
the `v' modifier with this operation, to request that `ar' list
|
||
each name as it extracts it.
|
||
|
||
If you do not specify a MEMBER, all files in the archive are
|
||
extracted.
|
||
|
||
Files cannot be extracted from a thin archive.
|
||
|
||
`--help'
|
||
Displays the list of command line options supported by `ar' and
|
||
then exits.
|
||
|
||
`--version'
|
||
Displays the version information of `ar' and then exits.
|
||
|
||
|
||
A number of modifiers (MOD) may immediately follow the P keyletter,
|
||
to specify variations on an operation's behavior:
|
||
|
||
`a'
|
||
Add new files _after_ an existing member of the archive. If you
|
||
use the modifier `a', the name of an existing archive member must
|
||
be present as the RELPOS argument, before the ARCHIVE
|
||
specification.
|
||
|
||
`b'
|
||
Add new files _before_ an existing member of the archive. If you
|
||
use the modifier `b', the name of an existing archive member must
|
||
be present as the RELPOS argument, before the ARCHIVE
|
||
specification. (same as `i').
|
||
|
||
`c'
|
||
_Create_ the archive. The specified ARCHIVE is always created if
|
||
it did not exist, when you request an update. But a warning is
|
||
issued unless you specify in advance that you expect to create it,
|
||
by using this modifier.
|
||
|
||
`D'
|
||
Operate in _deterministic_ mode. When adding files and the archive
|
||
index use zero for UIDs, GIDs, timestamps, and use consistent file
|
||
modes for all files. When this option is used, if `ar' is used
|
||
with identical options and identical input files, multiple runs
|
||
will create identical output files regardless of the input files'
|
||
owners, groups, file modes, or modification times.
|
||
|
||
If `binutils' was configured with
|
||
`--enable-deterministic-archives', then this mode is on by default.
|
||
It can be disabled with the `U' modifier, below.
|
||
|
||
`f'
|
||
Truncate names in the archive. GNU `ar' will normally permit file
|
||
names of any length. This will cause it to create archives which
|
||
are not compatible with the native `ar' program on some systems.
|
||
If this is a concern, the `f' modifier may be used to truncate file
|
||
names when putting them in the archive.
|
||
|
||
`i'
|
||
Insert new files _before_ an existing member of the archive. If
|
||
you use the modifier `i', the name of an existing archive member
|
||
must be present as the RELPOS argument, before the ARCHIVE
|
||
specification. (same as `b').
|
||
|
||
`l'
|
||
This modifier is accepted but not used.
|
||
|
||
`N'
|
||
Uses the COUNT parameter. This is used if there are multiple
|
||
entries in the archive with the same name. Extract or delete
|
||
instance COUNT of the given name from the archive.
|
||
|
||
`o'
|
||
Preserve the _original_ dates of members when extracting them. If
|
||
you do not specify this modifier, files extracted from the archive
|
||
are stamped with the time of extraction.
|
||
|
||
`P'
|
||
Use the full path name when matching names in the archive. GNU
|
||
`ar' can not create an archive with a full path name (such archives
|
||
are not POSIX complaint), but other archive creators can. This
|
||
option will cause GNU `ar' to match file names using a complete
|
||
path name, which can be convenient when extracting a single file
|
||
from an archive created by another tool.
|
||
|
||
`s'
|
||
Write an object-file index into the archive, or update an existing
|
||
one, even if no other change is made to the archive. You may use
|
||
this modifier flag either with any operation, or alone. Running
|
||
`xt-ar s' on an archive is equivalent to running `xt-ranlib' on it.
|
||
|
||
`S'
|
||
Do not generate an archive symbol table. This can speed up
|
||
building a large library in several steps. The resulting archive
|
||
can not be used with the linker. In order to build a symbol
|
||
table, you must omit the `S' modifier on the last execution of
|
||
`xt-ar', or you must run `ranlib' on the archive.
|
||
|
||
`T'
|
||
Make the specified ARCHIVE a _thin_ archive. If it already exists
|
||
and is a regular archive, the existing members must be present in
|
||
the same directory as ARCHIVE.
|
||
|
||
`u'
|
||
Normally, `xt-ar r'... inserts all files listed into the archive.
|
||
If you would like to insert _only_ those of the files you list
|
||
that are newer than existing members of the same names, use this
|
||
modifier. The `u' modifier is allowed only for the operation `r'
|
||
(replace). In particular, the combination `qu' is not allowed,
|
||
since checking the timestamps would lose any speed advantage from
|
||
the operation `q'.
|
||
|
||
`U'
|
||
Do _not_ operate in _deterministic_ mode. This is the inverse of
|
||
the `D' modifier, above: added files and the archive index will
|
||
get their actual UID, GID, timestamp, and file mode values.
|
||
|
||
This is the default unless `binutils' was configured with
|
||
`--enable-deterministic-archives'.
|
||
|
||
`v'
|
||
This modifier requests the _verbose_ version of an operation. Many
|
||
operations display additional information, such as filenames
|
||
processed, when the modifier `v' is appended.
|
||
|
||
`V'
|
||
This modifier shows the version number of `ar'.
|
||
|
||
`ar' ignores an initial option spelt `-X32_64', for compatibility
|
||
with AIX. The behaviour produced by this option is the default for GNU
|
||
`ar'. `ar' does not support any of the other `-X' options; in
|
||
particular, it does not support `-X32' which is the default for AIX
|
||
`ar'.
|
||
|
||
The optional command line switch `--target' BFDNAME specifies that
|
||
the archive members are in an object code format different from your
|
||
system's default format. See *Note Target Selection::, for more
|
||
information.
|
||
|
||
|
||
File: binutils.info, Node: nm, Next: objcopy, Prev: ar, Up: Top
|
||
|
||
2 nm
|
||
****
|
||
|
||
xt-nm [`-a'|`--debug-syms']
|
||
[`-g'|`--extern-only']
|
||
[`-B'] [`-C'|`--demangle'[=STYLE]] [`-D'|`--dynamic']
|
||
[`-S'|`--print-size'] [`-s'|`--print-armap']
|
||
[`-A'|`-o'|`--print-file-name'][`--special-syms']
|
||
[`-n'|`-v'|`--numeric-sort'] [`-p'|`--no-sort']
|
||
[`-r'|`--reverse-sort'] [`--size-sort'] [`-u'|`--undefined-only']
|
||
[`-t' RADIX|`--radix='RADIX] [`-P'|`--portability']
|
||
[`--target='BFDNAME] [`-f'FORMAT|`--format='FORMAT]
|
||
[`--defined-only'] [`-l'|`--line-numbers'] [`--no-demangle']
|
||
[`-V'|`--version'] [`-X 32_64'] [`--help'] [OBJFILE...]
|
||
[`--xtensa-core='NAME]
|
||
[`--xtensa-system='REGISTRY]
|
||
[`--xtensa-params='PATH]
|
||
[`--help'] [OBJFILE...]
|
||
|
||
GNU `nm' lists the symbols from object files OBJFILE.... If no
|
||
object files are listed as arguments, `nm' assumes the file `a.out'.
|
||
|
||
For each symbol, `nm' shows:
|
||
|
||
* The symbol value, in the radix selected by options (see below), or
|
||
hexadecimal by default.
|
||
|
||
* 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 usually local; if uppercase, the symbol is global
|
||
(external). There are however a few lowercase symbols that are
|
||
shown for special global symbols (`u', `v' and `w').
|
||
|
||
`A'
|
||
The symbol's value is absolute, and will not be changed by
|
||
further linking.
|
||
|
||
`B'
|
||
`b'
|
||
The symbol is in the uninitialized data section (known as
|
||
BSS).
|
||
|
||
`C'
|
||
The symbol is common. Common symbols are uninitialized data.
|
||
When linking, multiple common symbols may appear with the
|
||
same name. If the symbol is defined anywhere, the common
|
||
symbols are treated as undefined references. For more
|
||
details on common symbols, see the discussion of -warn-common
|
||
in *Note Command Line Options: (ld)Options.
|
||
|
||
`D'
|
||
`d'
|
||
The symbol is in the initialized data section.
|
||
|
||
`G'
|
||
`g'
|
||
The symbol is in an initialized data section for small
|
||
objects. Some object file formats permit more efficient
|
||
access to small data objects, such as a global int variable
|
||
as opposed to a large global array.
|
||
|
||
`i'
|
||
For ELF format files this indicates that the symbol is an
|
||
indirect function. This is a GNU extension to the standard
|
||
set of ELF symbol types. It indicates a symbol which if
|
||
referenced by a relocation does not evaluate to its address,
|
||
but instead must be invoked at runtime. The runtime
|
||
execution will then return the value to be used in the
|
||
relocation.
|
||
|
||
`N'
|
||
The symbol is a debugging symbol.
|
||
|
||
`p'
|
||
The symbols is in a stack unwind section.
|
||
|
||
`R'
|
||
`r'
|
||
The symbol is in a read only data section.
|
||
|
||
`S'
|
||
`s'
|
||
The symbol is in an uninitialized data section for small
|
||
objects.
|
||
|
||
`T'
|
||
`t'
|
||
The symbol is in the text (code) section.
|
||
|
||
`U'
|
||
The symbol is undefined.
|
||
|
||
`u'
|
||
The symbol is a unique global symbol. This is a GNU
|
||
extension to the standard set of ELF symbol bindings. For
|
||
such a symbol the dynamic linker will make sure that in the
|
||
entire process there is just one symbol with this name and
|
||
type in use.
|
||
|
||
`V'
|
||
`v'
|
||
The symbol is a weak object. When a weak defined symbol is
|
||
linked with a normal defined symbol, the normal defined
|
||
symbol is used with no error. When a weak undefined symbol
|
||
is linked and the symbol is not defined, the value of the
|
||
weak symbol becomes zero with no error.
|
||
|
||
`W'
|
||
`w'
|
||
The symbol is a weak symbol that has not been specifically
|
||
tagged as a weak object symbol. When a weak defined symbol
|
||
is linked with a normal defined symbol, the normal defined
|
||
symbol is used with no error. When a weak undefined symbol
|
||
is linked and the symbol is not defined, the value of the
|
||
symbol is determined in a system-specific manner without
|
||
error. On some systems, uppercase indicates that a default
|
||
value has been specified.
|
||
|
||
`-'
|
||
The symbol is a stabs symbol in an a.out object file. In
|
||
this case, the next values printed are the stabs other field,
|
||
the stabs desc field, and the stab type. Stabs symbols are
|
||
used to hold debugging information.
|
||
|
||
`?'
|
||
The symbol type is unknown, or object file format specific.
|
||
|
||
* The symbol name.
|
||
|
||
The long and short forms of options, shown here as alternatives, are
|
||
equivalent.
|
||
|
||
`-A'
|
||
`-o'
|
||
`--print-file-name'
|
||
Precede each symbol by the name of the input file (or archive
|
||
member) in which it was found, rather than identifying the input
|
||
file once only, before all of its symbols.
|
||
|
||
`-a'
|
||
`--debug-syms'
|
||
Display all symbols, even debugger-only symbols; normally these
|
||
are not listed.
|
||
|
||
`-B'
|
||
The same as `--format=bsd' (for compatibility with the MIPS `nm').
|
||
|
||
`-C'
|
||
`--demangle[=STYLE]'
|
||
Decode ("demangle") low-level symbol names into user-level names.
|
||
Besides removing any initial underscore prepended by the system,
|
||
this makes C++ function names readable. Different compilers have
|
||
different mangling styles. The optional demangling style argument
|
||
can be used to choose an appropriate demangling style for your
|
||
compiler. *Note c++filt::, for more information on demangling.
|
||
|
||
`--no-demangle'
|
||
Do not demangle low-level symbol names. This is the default.
|
||
|
||
`-D'
|
||
`--dynamic'
|
||
Display the dynamic symbols rather than the normal symbols. This
|
||
is only meaningful for dynamic objects, such as certain types of
|
||
shared libraries.
|
||
|
||
`-f FORMAT'
|
||
`--format=FORMAT'
|
||
Use the output format FORMAT, which can be `bsd', `sysv', or
|
||
`posix'. The default is `bsd'. Only the first character of
|
||
FORMAT is significant; it can be either upper or lower case.
|
||
|
||
`-g'
|
||
`--extern-only'
|
||
Display only external symbols.
|
||
|
||
`-l'
|
||
`--line-numbers'
|
||
For each symbol, use debugging information to try to find a
|
||
filename and line number. For a defined symbol, look for the line
|
||
number of the address of the symbol. For an undefined symbol,
|
||
look for the line number of a relocation entry which refers to the
|
||
symbol. If line number information can be found, print it after
|
||
the other symbol information.
|
||
|
||
`-n'
|
||
`-v'
|
||
`--numeric-sort'
|
||
Sort symbols numerically by their addresses, rather than
|
||
alphabetically by their names.
|
||
|
||
`-p'
|
||
`--no-sort'
|
||
Do not bother to sort the symbols in any order; print them in the
|
||
order encountered.
|
||
|
||
`-P'
|
||
`--portability'
|
||
Use the POSIX.2 standard output format instead of the default
|
||
format. Equivalent to `-f posix'.
|
||
|
||
`-S'
|
||
`--print-size'
|
||
Print both value and size of defined symbols for the `bsd' output
|
||
style.
|
||
|
||
`-s'
|
||
`--print-armap'
|
||
When listing symbols from archive members, include the index: a
|
||
mapping (stored in the archive by `ar' or `ranlib') of which
|
||
modules contain definitions for which names.
|
||
|
||
`-r'
|
||
`--reverse-sort'
|
||
Reverse the order of the sort (whether numeric or alphabetic); let
|
||
the last come first.
|
||
|
||
`--size-sort'
|
||
Sort symbols by size. The size is computed as the difference
|
||
between the value of the symbol and the value of the symbol with
|
||
the next higher value. If the `bsd' output format is used the
|
||
size of the symbol is printed, rather than the value, and `-S'
|
||
must be used in order both size and value to be printed.
|
||
|
||
`--special-syms'
|
||
Display symbols which have a target-specific special meaning.
|
||
These symbols are usually used by the target for some special
|
||
processing and are not normally helpful when included included in
|
||
the normal symbol lists. For example for ARM targets this option
|
||
would skip the mapping symbols used to mark transitions between
|
||
ARM code, THUMB code and data.
|
||
|
||
`-t RADIX'
|
||
`--radix=RADIX'
|
||
Use RADIX as the radix for printing the symbol values. It must be
|
||
`d' for decimal, `o' for octal, or `x' for hexadecimal.
|
||
|
||
`--target=BFDNAME'
|
||
Specify an object code format other than your system's default
|
||
format. *Note Target Selection::, for more information.
|
||
|
||
`-u'
|
||
`--undefined-only'
|
||
Display only undefined symbols (those external to each object
|
||
file).
|
||
|
||
`--defined-only'
|
||
Display only defined symbols for each object file.
|
||
|
||
`-V'
|
||
`--version'
|
||
Show the version number of `nm' and exit.
|
||
|
||
`-X'
|
||
This option is ignored for compatibility with the AIX version of
|
||
`nm'. It takes one parameter which must be the string `32_64'.
|
||
The default mode of AIX `nm' corresponds to `-X 32', which is not
|
||
supported by GNU `nm'.
|
||
|
||
`--xtensa-core=NAME'
|
||
Specify the name of an Xtensa processor core configuration to use.
|
||
The configuration information is taken from the entry for NAME in
|
||
the Xtensa core registry (see the `--xtensa-system' option). If
|
||
this option is not specified, the Xtensa core name is either the
|
||
value of the `XTENSA_CORE' environment variable or "default" if
|
||
that variable is not set.
|
||
|
||
`--xtensa-system=REGISTRY'
|
||
Specify a directory to be used as the Xtensa core registry. If
|
||
this option is not set, the `XTENSA_SYSTEM' environment variable
|
||
specifies the Xtensa registry, and if that is not set, the default
|
||
registry, `<xtensa_tools_root>/config', is used. Please see the
|
||
`Xtensa Software Development Toolkit User's Guide' for more
|
||
information about Xtensa core registries.
|
||
|
||
`--xtensa-params=PATH'
|
||
Specify the location of the parameter file in a TIE Development Kit
|
||
(TDK) that was produced by running the TIE Compiler (tc). If PATH
|
||
identifies a directory rather than a file, the parameters are read
|
||
from a file named `default-params' if it exists in that directory.
|
||
The parameter file may also be specified by setting the
|
||
`XTENSA_PARAMS' environment variable. The `--xtensa-params'
|
||
option takes precedence over the environment variable. See the
|
||
`Tensilica Instruction Extension (TIE) Language User's Guide' for
|
||
more information.
|
||
|
||
`--help'
|
||
Show a summary of the options to `nm' and exit.
|
||
|
||
|
||
File: binutils.info, Node: objcopy, Next: objdump, Prev: nm, Up: Top
|
||
|
||
3 objcopy
|
||
*********
|
||
|
||
xt-objcopy [`-F' BFDNAME|`--target='BFDNAME]
|
||
[`-I' BFDNAME|`--input-target='BFDNAME]
|
||
[`-O' BFDNAME|`--output-target='BFDNAME]
|
||
[`-B' BFDARCH|`--binary-architecture='BFDARCH]
|
||
[`-S'|`--strip-all']
|
||
[`-g'|`--strip-debug']
|
||
[`-K' SYMBOLNAME|`--keep-symbol='SYMBOLNAME]
|
||
[`-N' SYMBOLNAME|`--strip-symbol='SYMBOLNAME]
|
||
[`--strip-unneeded-symbol='SYMBOLNAME]
|
||
[`-G' SYMBOLNAME|`--keep-global-symbol='SYMBOLNAME]
|
||
[`--localize-hidden']
|
||
[`-L' SYMBOLNAME|`--localize-symbol='SYMBOLNAME]
|
||
[`--globalize-symbol='SYMBOLNAME]
|
||
[`-W' SYMBOLNAME|`--weaken-symbol='SYMBOLNAME]
|
||
[`-w'|`--wildcard']
|
||
[`-x'|`--discard-all']
|
||
[`-X'|`--discard-locals']
|
||
[`-b' BYTE|`--byte='BYTE]
|
||
[`-i' [BREADTH]|`--interleave'[=BREADTH]]
|
||
[`--interleave-width='WIDTH]
|
||
[`-j' SECTIONNAME|`--only-section='SECTIONNAME]
|
||
[`-R' SECTIONNAME|`--remove-section='SECTIONNAME]
|
||
[`-p'|`--preserve-dates']
|
||
[`-D'|`--enable-deterministic-archives']
|
||
[`-U'|`--disable-deterministic-archives']
|
||
[`--debugging']
|
||
[`--gap-fill='VAL]
|
||
[`--pad-to='ADDRESS]
|
||
[`--set-start='VAL]
|
||
[`--adjust-start='INCR]
|
||
[`--change-addresses='INCR]
|
||
[`--change-section-address' SECTION{=,+,-}VAL]
|
||
[`--change-section-lma' SECTION{=,+,-}VAL]
|
||
[`--change-section-vma' SECTION{=,+,-}VAL]
|
||
[`--change-warnings'] [`--no-change-warnings']
|
||
[`--set-section-flags' SECTION=FLAGS]
|
||
[`--add-section' SECTIONNAME=FILENAME]
|
||
[`--rename-section' OLDNAME=NEWNAME[,FLAGS]]
|
||
[`--change-leading-char'] [`--remove-leading-char']
|
||
[`--reverse-bytes='NUM]
|
||
[`--srec-len='IVAL] [`--srec-forceS3']
|
||
[`--redefine-sym' OLD=NEW]
|
||
[`--redefine-syms='FILENAME]
|
||
[`--weaken']
|
||
[`--keep-symbols='FILENAME]
|
||
[`--strip-symbols='FILENAME]
|
||
[`--strip-unneeded-symbols='FILENAME]
|
||
[`--keep-global-symbols='FILENAME]
|
||
[`--localize-symbols='FILENAME]
|
||
[`--globalize-symbols='FILENAME]
|
||
[`--weaken-symbols='FILENAME]
|
||
[`--alt-machine-code='INDEX]
|
||
[`--prefix-symbols='STRING]
|
||
[`--prefix-sections='STRING]
|
||
[`--prefix-alloc-sections='STRING]
|
||
[`--add-gnu-debuglink='PATH-TO-FILE]
|
||
[`--keep-file-symbols']
|
||
[`--only-keep-debug']
|
||
[`--strip-dwo']
|
||
[`--extract-dwo']
|
||
[`--extract-symbol']
|
||
[`--writable-text']
|
||
[`--readonly-text']
|
||
[`--pure']
|
||
[`--impure']
|
||
[`--xtensa-core='NAME]
|
||
[`--xtensa-system='REGISTRY]
|
||
[`--xtensa-params='PATH]
|
||
[`-v'|`--verbose']
|
||
[`-V'|`--version']
|
||
[`--help'] [`--info']
|
||
INFILE [OUTFILE]
|
||
|
||
The GNU `objcopy' utility copies the contents of an object file to
|
||
another. `objcopy' uses the GNU BFD Library to read and write the
|
||
object files. It can write the destination object file in a format
|
||
different from that of the source object file. The exact behavior of
|
||
`objcopy' is controlled by command-line options. Note that `objcopy'
|
||
should be able to copy a fully linked file between any two formats.
|
||
However, copying a relocatable object file between any two formats may
|
||
not work as expected.
|
||
|
||
`objcopy' creates temporary files to do its translations and deletes
|
||
them afterward. `objcopy' uses BFD to do all its translation work; it
|
||
has access to all the formats described in BFD and thus is able to
|
||
recognize most formats without being told explicitly.
|
||
|
||
`objcopy' can be used to generate S-records by using an output
|
||
target of `srec' (e.g., use `-O srec').
|
||
|
||
`objcopy' can be used to generate a raw binary file by using an
|
||
output target of `binary' (e.g., use `-O binary'). When `objcopy'
|
||
generates a raw binary file, it will essentially produce a memory dump
|
||
of the contents of the input object file. All symbols and relocation
|
||
information will be discarded. The memory dump will start at the load
|
||
address of the lowest section copied into the output file.
|
||
|
||
When generating an S-record or a raw binary file, it may be helpful
|
||
to use `-S' to remove sections containing debugging information. In
|
||
some cases `-R' will be useful to remove sections which contain
|
||
information that is not needed by the binary file.
|
||
|
||
Note--`objcopy' is not able to change the endianness of its input
|
||
files. If the input format has an endianness (some formats do not),
|
||
`objcopy' can only copy the inputs into file formats that have the same
|
||
endianness or which have no endianness (e.g., `srec'). (However, see
|
||
the `--reverse-bytes' option.)
|
||
|
||
`INFILE'
|
||
`OUTFILE'
|
||
The input and output files, respectively. If you do not specify
|
||
OUTFILE, `objcopy' creates a temporary file and destructively
|
||
renames the result with the name of INFILE.
|
||
|
||
`-I BFDNAME'
|
||
`--input-target=BFDNAME'
|
||
Consider the source file's object format to be BFDNAME, rather than
|
||
attempting to deduce it. *Note Target Selection::, for more
|
||
information.
|
||
|
||
`-O BFDNAME'
|
||
`--output-target=BFDNAME'
|
||
Write the output file using the object format BFDNAME. *Note
|
||
Target Selection::, for more information.
|
||
|
||
`-F BFDNAME'
|
||
`--target=BFDNAME'
|
||
Use BFDNAME as the object format for both the input and the output
|
||
file; i.e., simply transfer data from source to destination with no
|
||
translation. *Note Target Selection::, for more information.
|
||
|
||
`-B BFDARCH'
|
||
`--binary-architecture=BFDARCH'
|
||
Useful when transforming a architecture-less input file into an
|
||
object file. In this case the output architecture can be set to
|
||
BFDARCH. This option will be ignored if the input file has a
|
||
known BFDARCH. You can access this binary data inside a program
|
||
by referencing the special symbols that are created by the
|
||
conversion process. These symbols are called
|
||
_binary_OBJFILE_start, _binary_OBJFILE_end and
|
||
_binary_OBJFILE_size. e.g. you can transform a picture file into
|
||
an object file and then access it in your code using these symbols.
|
||
|
||
`-j SECTIONNAME'
|
||
`--only-section=SECTIONNAME'
|
||
Copy only the named section from the input file to the output file.
|
||
This option may be given more than once. Note that using this
|
||
option inappropriately may make the output file unusable.
|
||
|
||
`-R SECTIONNAME'
|
||
`--remove-section=SECTIONNAME'
|
||
Remove any section named SECTIONNAME from the output file. This
|
||
option may be given more than once. Note that using this option
|
||
inappropriately may make the output file unusable.
|
||
|
||
`-S'
|
||
`--strip-all'
|
||
Do not copy relocation and symbol information from the source file.
|
||
|
||
`-g'
|
||
`--strip-debug'
|
||
Do not copy debugging symbols or sections from the source file.
|
||
|
||
`--strip-unneeded'
|
||
Strip all symbols that are not needed for relocation processing.
|
||
|
||
`-K SYMBOLNAME'
|
||
`--keep-symbol=SYMBOLNAME'
|
||
When stripping symbols, keep symbol SYMBOLNAME even if it would
|
||
normally be stripped. This option may be given more than once.
|
||
|
||
`-N SYMBOLNAME'
|
||
`--strip-symbol=SYMBOLNAME'
|
||
Do not copy symbol SYMBOLNAME from the source file. This option
|
||
may be given more than once.
|
||
|
||
`--strip-unneeded-symbol=SYMBOLNAME'
|
||
Do not copy symbol SYMBOLNAME from the source file unless it is
|
||
needed by a relocation. This option may be given more than once.
|
||
|
||
`-G SYMBOLNAME'
|
||
`--keep-global-symbol=SYMBOLNAME'
|
||
Keep only symbol SYMBOLNAME global. Make all other symbols local
|
||
to the file, so that they are not visible externally. This option
|
||
may be given more than once.
|
||
|
||
`--localize-hidden'
|
||
In an ELF object, mark all symbols that have hidden or internal
|
||
visibility as local. This option applies on top of
|
||
symbol-specific localization options such as `-L'.
|
||
|
||
`-L SYMBOLNAME'
|
||
`--localize-symbol=SYMBOLNAME'
|
||
Make symbol SYMBOLNAME local to the file, so that it is not
|
||
visible externally. This option may be given more than once.
|
||
|
||
`-W SYMBOLNAME'
|
||
`--weaken-symbol=SYMBOLNAME'
|
||
Make symbol SYMBOLNAME weak. This option may be given more than
|
||
once.
|
||
|
||
`--globalize-symbol=SYMBOLNAME'
|
||
Give symbol SYMBOLNAME global scoping so that it is visible
|
||
outside of the file in which it is defined. This option may be
|
||
given more than once.
|
||
|
||
`-w'
|
||
`--wildcard'
|
||
Permit regular expressions in SYMBOLNAMEs used in other command
|
||
line options. The question mark (?), asterisk (*), backslash (\)
|
||
and square brackets ([]) operators can be used anywhere in the
|
||
symbol name. If the first character of the symbol name is the
|
||
exclamation point (!) then the sense of the switch is reversed for
|
||
that symbol. For example:
|
||
|
||
-w -W !foo -W fo*
|
||
|
||
would cause objcopy to weaken all symbols that start with "fo"
|
||
except for the symbol "foo".
|
||
|
||
`-x'
|
||
`--discard-all'
|
||
Do not copy non-global symbols from the source file.
|
||
|
||
`-X'
|
||
`--discard-locals'
|
||
Do not copy compiler-generated local symbols. (These usually
|
||
start with `L' or `.'.)
|
||
|
||
`-b BYTE'
|
||
`--byte=BYTE'
|
||
If interleaving has been enabled via the `--interleave' option
|
||
then start the range of bytes to keep at the BYTEth byte. BYTE
|
||
can be in the range from 0 to BREADTH-1, where BREADTH is the
|
||
value given by the `--interleave' option.
|
||
|
||
`-i [BREADTH]'
|
||
`--interleave[=BREADTH]'
|
||
Only copy a range out of every BREADTH bytes. (Header data is not
|
||
affected). Select which byte in the range begins the copy with
|
||
the `--byte' option. Select the width of the range with the
|
||
`--interleave-width' option.
|
||
|
||
This option is useful for creating files to program ROM. It is
|
||
typically used with an `srec' output target. Note that `objcopy'
|
||
will complain if you do not specify the `--byte' option as well.
|
||
|
||
The default interleave breadth is 4, so with `--byte' set to 0,
|
||
`objcopy' would copy the first byte out of every four bytes from
|
||
the input to the output.
|
||
|
||
`--interleave-width=WIDTH'
|
||
When used with the `--interleave' option, copy WIDTH bytes at a
|
||
time. The start of the range of bytes to be copied is set by the
|
||
`--byte' option, and the extent of the range is set with the
|
||
`--interleave' option.
|
||
|
||
The default value for this option is 1. The value of WIDTH plus
|
||
the BYTE value set by the `--byte' option must not exceed the
|
||
interleave breadth set by the `--interleave' option.
|
||
|
||
This option can be used to create images for two 16-bit flashes
|
||
interleaved in a 32-bit bus by passing `-b 0 -i 4
|
||
--interleave-width=2' and `-b 2 -i 4 --interleave-width=2' to two
|
||
`objcopy' commands. If the input was '12345678' then the outputs
|
||
would be '1256' and '3478' respectively.
|
||
|
||
`-p'
|
||
`--preserve-dates'
|
||
Set the access and modification dates of the output file to be the
|
||
same as those of the input file.
|
||
|
||
`-D'
|
||
`--enable-deterministic-archives'
|
||
Operate in _deterministic_ mode. When copying archive members and
|
||
writing the archive index, use zero for UIDs, GIDs, timestamps,
|
||
and use consistent file modes for all files.
|
||
|
||
If `binutils' was configured with
|
||
`--enable-deterministic-archives', then this mode is on by default.
|
||
It can be disabled with the `-U' option, below.
|
||
|
||
`-U'
|
||
`--disable-deterministic-archives'
|
||
Do _not_ operate in _deterministic_ mode. This is the inverse of
|
||
the `-D' option, above: when copying archive members and writing
|
||
the archive index, use their actual UID, GID, timestamp, and file
|
||
mode values.
|
||
|
||
This is the default unless `binutils' was configured with
|
||
`--enable-deterministic-archives'.
|
||
|
||
`--debugging'
|
||
Convert debugging information, if possible. This is not the
|
||
default because only certain debugging formats are supported, and
|
||
the conversion process can be time consuming.
|
||
|
||
`--gap-fill VAL'
|
||
Fill gaps between sections with VAL. This operation applies to
|
||
the _load address_ (LMA) of the sections. It is done by increasing
|
||
the size of the section with the lower address, and filling in the
|
||
extra space created with VAL.
|
||
|
||
`--pad-to ADDRESS'
|
||
Pad the output file up to the load address ADDRESS. This is done
|
||
by increasing the size of the last section. The extra space is
|
||
filled in with the value specified by `--gap-fill' (default zero).
|
||
|
||
`--set-start VAL'
|
||
Set the start address of the new file to VAL. Not all object file
|
||
formats support setting the start address.
|
||
|
||
`--change-start INCR'
|
||
`--adjust-start INCR'
|
||
Change the start address by adding INCR. Not all object file
|
||
formats support setting the start address.
|
||
|
||
`--change-addresses INCR'
|
||
`--adjust-vma INCR'
|
||
Change the VMA and LMA addresses of all sections, as well as the
|
||
start address, by adding INCR. Some object file formats do not
|
||
permit section addresses to be changed arbitrarily. Note that
|
||
this does not relocate the sections; if the program expects
|
||
sections to be loaded at a certain address, and this option is
|
||
used to change the sections such that they are loaded at a
|
||
different address, the program may fail.
|
||
|
||
`--change-section-address SECTION{=,+,-}VAL'
|
||
`--adjust-section-vma SECTION{=,+,-}VAL'
|
||
Set or change both the VMA address and the LMA address of the named
|
||
SECTION. If `=' is used, the section address is set to VAL.
|
||
Otherwise, VAL is added to or subtracted from the section address.
|
||
See the comments under `--change-addresses', above. If SECTION
|
||
does not exist in the input file, a warning will be issued, unless
|
||
`--no-change-warnings' is used.
|
||
|
||
`--change-section-lma SECTION{=,+,-}VAL'
|
||
Set or change the LMA address of the named SECTION. The LMA
|
||
address is the address where the section will be loaded into
|
||
memory at program load time. Normally this is the same as the VMA
|
||
address, which is the address of the section at program run time,
|
||
but on some systems, especially those where a program is held in
|
||
ROM, the two can be different. If `=' is used, the section
|
||
address is set to VAL. Otherwise, VAL is added to or subtracted
|
||
from the section address. See the comments under
|
||
`--change-addresses', above. If SECTION does not exist in the
|
||
input file, a warning will be issued, unless
|
||
`--no-change-warnings' is used.
|
||
|
||
`--change-section-vma SECTION{=,+,-}VAL'
|
||
Set or change the VMA address of the named SECTION. The VMA
|
||
address is the address where the section will be located once the
|
||
program has started executing. Normally this is the same as the
|
||
LMA address, which is the address where the section will be loaded
|
||
into memory, but on some systems, especially those where a program
|
||
is held in ROM, the two can be different. If `=' is used, the
|
||
section address is set to VAL. Otherwise, VAL is added to or
|
||
subtracted from the section address. See the comments under
|
||
`--change-addresses', above. If SECTION does not exist in the
|
||
input file, a warning will be issued, unless
|
||
`--no-change-warnings' is used.
|
||
|
||
`--change-warnings'
|
||
`--adjust-warnings'
|
||
If `--change-section-address' or `--change-section-lma' or
|
||
`--change-section-vma' is used, and the named section does not
|
||
exist, issue a warning. This is the default.
|
||
|
||
`--no-change-warnings'
|
||
`--no-adjust-warnings'
|
||
Do not issue a warning if `--change-section-address' or
|
||
`--adjust-section-lma' or `--adjust-section-vma' is used, even if
|
||
the named section does not exist.
|
||
|
||
`--set-section-flags SECTION=FLAGS'
|
||
Set the flags for the named section. The FLAGS argument is a
|
||
comma separated string of flag names. The recognized names are
|
||
`alloc', `contents', `load', `noload', `readonly', `code', `data',
|
||
`rom', `share', and `debug'. You can set the `contents' flag for
|
||
a section which does not have contents, but it is not meaningful
|
||
to clear the `contents' flag of a section which does have
|
||
contents-just remove the section instead. Not all flags are
|
||
meaningful for all object file formats.
|
||
|
||
`--add-section SECTIONNAME=FILENAME'
|
||
Add a new section named SECTIONNAME while copying the file. The
|
||
contents of the new section are taken from the file FILENAME. The
|
||
size of the section will be the size of the file. This option only
|
||
works on file formats which can support sections with arbitrary
|
||
names.
|
||
|
||
`--rename-section OLDNAME=NEWNAME[,FLAGS]'
|
||
Rename a section from OLDNAME to NEWNAME, optionally changing the
|
||
section's flags to FLAGS in the process. This has the advantage
|
||
over usng a linker script to perform the rename in that the output
|
||
stays as an object file and does not become a linked executable.
|
||
|
||
This option is particularly helpful when the input format is
|
||
binary, since this will always create a section called .data. If
|
||
for example, you wanted instead to create a section called .rodata
|
||
containing binary data you could use the following command line to
|
||
achieve it:
|
||
|
||
xt-objcopy -I binary -O <output_format> -B <architecture> \
|
||
--rename-section .data=.rodata,alloc,load,readonly,data,contents \
|
||
<input_binary_file> <output_object_file>
|
||
|
||
`--change-leading-char'
|
||
Some object file formats use special characters at the start of
|
||
symbols. The most common such character is underscore, which
|
||
compilers often add before every symbol. This option tells
|
||
`objcopy' to change the leading character of every symbol when it
|
||
converts between object file formats. If the object file formats
|
||
use the same leading character, this option has no effect.
|
||
Otherwise, it will add a character, or remove a character, or
|
||
change a character, as appropriate.
|
||
|
||
`--remove-leading-char'
|
||
If the first character of a global symbol is a special symbol
|
||
leading character used by the object file format, remove the
|
||
character. The most common symbol leading character is
|
||
underscore. This option will remove a leading underscore from all
|
||
global symbols. This can be useful if you want to link together
|
||
objects of different file formats with different conventions for
|
||
symbol names. This is different from `--change-leading-char'
|
||
because it always changes the symbol name when appropriate,
|
||
regardless of the object file format of the output file.
|
||
|
||
`--reverse-bytes=NUM'
|
||
Reverse the bytes in a section with output contents. A section
|
||
length must be evenly divisible by the value given in order for
|
||
the swap to be able to take place. Reversing takes place before
|
||
the interleaving is performed.
|
||
|
||
This option is used typically in generating ROM images for
|
||
problematic target systems. For example, on some target boards,
|
||
the 32-bit words fetched from 8-bit ROMs are re-assembled in
|
||
little-endian byte order regardless of the CPU byte order.
|
||
Depending on the programming model, the endianness of the ROM may
|
||
need to be modified.
|
||
|
||
Consider a simple file with a section containing the following
|
||
eight bytes: `12345678'.
|
||
|
||
Using `--reverse-bytes=2' for the above example, the bytes in the
|
||
output file would be ordered `21436587'.
|
||
|
||
Using `--reverse-bytes=4' for the above example, the bytes in the
|
||
output file would be ordered `43218765'.
|
||
|
||
By using `--reverse-bytes=2' for the above example, followed by
|
||
`--reverse-bytes=4' on the output file, the bytes in the second
|
||
output file would be ordered `34127856'.
|
||
|
||
`--srec-len=IVAL'
|
||
Meaningful only for srec output. Set the maximum length of the
|
||
Srecords being produced to IVAL. This length covers both address,
|
||
data and crc fields.
|
||
|
||
`--srec-forceS3'
|
||
Meaningful only for srec output. Avoid generation of S1/S2
|
||
records, creating S3-only record format.
|
||
|
||
`--redefine-sym OLD=NEW'
|
||
Change the name of a symbol OLD, to NEW. This can be useful when
|
||
one is trying link two things together for which you have no
|
||
source, and there are name collisions.
|
||
|
||
`--redefine-syms=FILENAME'
|
||
Apply `--redefine-sym' to each symbol pair "OLD NEW" listed in the
|
||
file FILENAME. FILENAME is simply a flat file, with one symbol
|
||
pair per line. Line comments may be introduced by the hash
|
||
character. This option may be given more than once.
|
||
|
||
`--weaken'
|
||
Change all global symbols in the file to be weak. This can be
|
||
useful when building an object which will be linked against other
|
||
objects using the `-R' option to the linker. This option is only
|
||
effective when using an object file format which supports weak
|
||
symbols.
|
||
|
||
`--keep-symbols=FILENAME'
|
||
Apply `--keep-symbol' option to each symbol listed in the file
|
||
FILENAME. FILENAME is simply a flat file, with one symbol name
|
||
per line. Line comments may be introduced by the hash character.
|
||
This option may be given more than once.
|
||
|
||
`--strip-symbols=FILENAME'
|
||
Apply `--strip-symbol' option to each symbol listed in the file
|
||
FILENAME. FILENAME is simply a flat file, with one symbol name
|
||
per line. Line comments may be introduced by the hash character.
|
||
This option may be given more than once.
|
||
|
||
`--strip-unneeded-symbols=FILENAME'
|
||
Apply `--strip-unneeded-symbol' option to each symbol listed in
|
||
the file FILENAME. FILENAME is simply a flat file, with one
|
||
symbol name per line. Line comments may be introduced by the hash
|
||
character. This option may be given more than once.
|
||
|
||
`--keep-global-symbols=FILENAME'
|
||
Apply `--keep-global-symbol' option to each symbol listed in the
|
||
file FILENAME. FILENAME is simply a flat file, with one symbol
|
||
name per line. Line comments may be introduced by the hash
|
||
character. This option may be given more than once.
|
||
|
||
`--localize-symbols=FILENAME'
|
||
Apply `--localize-symbol' option to each symbol listed in the file
|
||
FILENAME. FILENAME is simply a flat file, with one symbol name
|
||
per line. Line comments may be introduced by the hash character.
|
||
This option may be given more than once.
|
||
|
||
`--globalize-symbols=FILENAME'
|
||
Apply `--globalize-symbol' option to each symbol listed in the file
|
||
FILENAME. FILENAME is simply a flat file, with one symbol name
|
||
per line. Line comments may be introduced by the hash character.
|
||
This option may be given more than once.
|
||
|
||
`--weaken-symbols=FILENAME'
|
||
Apply `--weaken-symbol' option to each symbol listed in the file
|
||
FILENAME. FILENAME is simply a flat file, with one symbol name
|
||
per line. Line comments may be introduced by the hash character.
|
||
This option may be given more than once.
|
||
|
||
`--alt-machine-code=INDEX'
|
||
If the output architecture has alternate machine codes, use the
|
||
INDEXth code instead of the default one. This is useful in case a
|
||
machine is assigned an official code and the tool-chain adopts the
|
||
new code, but other applications still depend on the original code
|
||
being used. For ELF based architectures if the INDEX alternative
|
||
does not exist then the value is treated as an absolute number to
|
||
be stored in the e_machine field of the ELF header.
|
||
|
||
`--writable-text'
|
||
Mark the output text as writable. This option isn't meaningful
|
||
for all object file formats.
|
||
|
||
`--readonly-text'
|
||
Make the output text write protected. This option isn't
|
||
meaningful for all object file formats.
|
||
|
||
`--pure'
|
||
Mark the output file as demand paged. This option isn't
|
||
meaningful for all object file formats.
|
||
|
||
`--impure'
|
||
Mark the output file as impure. This option isn't meaningful for
|
||
all object file formats.
|
||
|
||
`--prefix-symbols=STRING'
|
||
Prefix all symbols in the output file with STRING.
|
||
|
||
`--prefix-sections=STRING'
|
||
Prefix all section names in the output file with STRING.
|
||
|
||
`--prefix-alloc-sections=STRING'
|
||
Prefix all the names of all allocated sections in the output file
|
||
with STRING.
|
||
|
||
`--add-gnu-debuglink=PATH-TO-FILE'
|
||
Creates a .gnu_debuglink section which contains a reference to
|
||
PATH-TO-FILE and adds it to the output file.
|
||
|
||
`--keep-file-symbols'
|
||
When stripping a file, perhaps with `--strip-debug' or
|
||
`--strip-unneeded', retain any symbols specifying source file
|
||
names, which would otherwise get stripped.
|
||
|
||
`--only-keep-debug'
|
||
Strip a file, removing contents of any sections that would not be
|
||
stripped by `--strip-debug' and leaving the debugging sections
|
||
intact. In ELF files, this preserves all note sections in the
|
||
output.
|
||
|
||
The intention is that this option will be used in conjunction with
|
||
`--add-gnu-debuglink' to create a two part executable. One a
|
||
stripped binary which will occupy less space in RAM and in a
|
||
distribution and the second a debugging information file which is
|
||
only needed if debugging abilities are required. The suggested
|
||
procedure to create these files is as follows:
|
||
|
||
1. Link the executable as normal. Assuming that is is called
|
||
`foo' then...
|
||
|
||
2. Run `xt-objcopy --only-keep-debug foo foo.dbg' to create a
|
||
file containing the debugging info.
|
||
|
||
3. Run `xt-objcopy --strip-debug foo' to create a stripped
|
||
executable.
|
||
|
||
4. Run `xt-objcopy --add-gnu-debuglink=foo.dbg foo' to add a
|
||
link to the debugging info into the stripped executable.
|
||
|
||
Note--the choice of `.dbg' as an extension for the debug info file
|
||
is arbitrary. Also the `--only-keep-debug' step is optional. You
|
||
could instead do this:
|
||
|
||
1. Link the executable as normal.
|
||
|
||
2. Copy `foo' to `foo.full'
|
||
|
||
3. Run `xt-objcopy --strip-debug foo'
|
||
|
||
4. Run `xt-objcopy --add-gnu-debuglink=foo.full foo'
|
||
|
||
i.e., the file pointed to by the `--add-gnu-debuglink' can be the
|
||
full executable. It does not have to be a file created by the
|
||
`--only-keep-debug' switch.
|
||
|
||
Note--this switch is only intended for use on fully linked files.
|
||
It does not make sense to use it on object files where the
|
||
debugging information may be incomplete. Besides the
|
||
gnu_debuglink feature currently only supports the presence of one
|
||
filename containing debugging information, not multiple filenames
|
||
on a one-per-object-file basis.
|
||
|
||
`--extract-symbol'
|
||
Keep the file's section flags and symbols but remove all section
|
||
data. Specifically, the option:
|
||
|
||
* removes the contents of all sections;
|
||
|
||
* sets the size of every section to zero; and
|
||
|
||
* sets the file's start address to zero.
|
||
|
||
This option is used to build a `.sym' file for a VxWorks kernel.
|
||
It can also be a useful way of reducing the size of a
|
||
`--just-symbols' linker input file.
|
||
|
||
`--compress-debug-sections'
|
||
Compress DWARF debug sections using zlib.
|
||
|
||
`--decompress-debug-sections'
|
||
Decompress DWARF debug sections using zlib.
|
||
|
||
`--xtensa-core=NAME'
|
||
Specify the name of an Xtensa processor core configuration to use.
|
||
The configuration information is taken from the entry for NAME in
|
||
the Xtensa core registry (see the `--xtensa-system' option). If
|
||
this option is not specified, the Xtensa core name is either the
|
||
value of the `XTENSA_CORE' environment variable or "default" if
|
||
that variable is not set.
|
||
|
||
`--xtensa-system=REGISTRY'
|
||
Specify a directory to be used as the Xtensa core registry. If
|
||
this option is not set, the `XTENSA_SYSTEM' environment variable
|
||
specifies the Xtensa registry, and if that is not set, the default
|
||
registry, `<xtensa_tools_root>/config', is used. Please see the
|
||
`Xtensa Software Development Toolkit User's Guide' for more
|
||
information about Xtensa core registries.
|
||
|
||
`--xtensa-params=PATH'
|
||
Specify the location of the parameter file in a TIE Development Kit
|
||
(TDK) that was produced by running the TIE Compiler (tc). If PATH
|
||
identifies a directory rather than a file, the parameters are read
|
||
from a file named `default-params' if it exists in that directory.
|
||
The parameter file may also be specified by setting the
|
||
`XTENSA_PARAMS' environment variable. The `--xtensa-params'
|
||
option takes precedence over the environment variable. See the
|
||
`Tensilica Instruction Extension (TIE) Language User's Guide' for
|
||
more information.
|
||
|
||
`-V'
|
||
`--version'
|
||
Show the version number of `objcopy'.
|
||
|
||
`-v'
|
||
`--verbose'
|
||
Verbose output: list all object files modified. In the case of
|
||
archives, `xt-objcopy -V' lists all members of the archive.
|
||
|
||
`--help'
|
||
Show a summary of the options to `objcopy'.
|
||
|
||
`--info'
|
||
Display a list showing all architectures and object formats
|
||
available.
|
||
|
||
|
||
File: binutils.info, Node: objdump, Next: ranlib, Prev: objcopy, Up: Top
|
||
|
||
4 objdump
|
||
*********
|
||
|
||
xt-objdump [`-a'|`--archive-headers']
|
||
[`-b' BFDNAME|`--target=BFDNAME']
|
||
[`-C'|`--demangle'[=STYLE] ]
|
||
[`-d'|`--disassemble']
|
||
[`-D'|`--disassemble-all']
|
||
[`-z'|`--disassemble-zeroes']
|
||
[`-EB'|`-EL'|`--endian='{big | little }]
|
||
[`-f'|`--file-headers']
|
||
[`-F'|`--file-offsets']
|
||
[`--file-start-context']
|
||
[`-g'|`--debugging']
|
||
[`-e'|`--debugging-tags']
|
||
[`-h'|`--section-headers'|`--headers']
|
||
[`-i'|`--info']
|
||
[`-j' SECTION|`--section='SECTION]
|
||
[`-l'|`--line-numbers']
|
||
[`-S'|`--source']
|
||
[`-m' MACHINE|`--architecture='MACHINE]
|
||
[`-M' OPTIONS|`--disassembler-options='OPTIONS]
|
||
[`-p'|`--private-headers']
|
||
[`-P' OPTIONS|`--private='OPTIONS]
|
||
[`-r'|`--reloc']
|
||
[`-R'|`--dynamic-reloc']
|
||
[`-s'|`--full-contents']
|
||
[`-W[lLiaprmfFsoRt]'|
|
||
`--dwarf'[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]]
|
||
[`-G'|`--stabs']
|
||
[`-t'|`--syms']
|
||
[`-T'|`--dynamic-syms']
|
||
[`-x'|`--all-headers']
|
||
[`-w'|`--wide']
|
||
[`--start-address='ADDRESS]
|
||
[`--stop-address='ADDRESS]
|
||
[`--prefix-addresses']
|
||
[`--[no-]show-raw-insn']
|
||
[`--adjust-vma='OFFSET]
|
||
[`--special-syms']
|
||
[`--prefix='PREFIX]
|
||
[`--prefix-strip='LEVEL]
|
||
[`--insn-width='WIDTH]
|
||
[`--xtensa-core='NAME]
|
||
[`--xtensa-system='REGISTRY]
|
||
[`--xtensa-params='PATH]
|
||
[`--show-only-insns']
|
||
[`--dump-insn-tables']
|
||
[`-V'|`--version']
|
||
[`-H'|`--help']
|
||
OBJFILE...
|
||
|
||
`objdump' displays information about one or more object files. The
|
||
options control what particular information to display. This
|
||
information is mostly useful to programmers who are working on the
|
||
compilation tools, as opposed to programmers who just want their
|
||
program to compile and work.
|
||
|
||
OBJFILE... are the object files to be examined. When you specify
|
||
archives, `objdump' shows information on each of the member object
|
||
files.
|
||
|
||
The long and short forms of options, shown here as alternatives, are
|
||
equivalent. At least one option from the list
|
||
`-a,-d,-D,-e,-f,-g,-G,-h,-H,-p,-P,-r,-R,-s,-S,-t,-T,-V,-x' must be
|
||
given.
|
||
|
||
`-a'
|
||
`--archive-header'
|
||
If any of the OBJFILE files are archives, display the archive
|
||
header information (in a format similar to `ls -l'). Besides the
|
||
information you could list with `xt-ar tv', `xt-objdump -a' shows
|
||
the object file format of each archive member.
|
||
|
||
`--adjust-vma=OFFSET'
|
||
When dumping information, first add OFFSET to all the section
|
||
addresses. This is useful if the section addresses do not
|
||
correspond to the symbol table, which can happen when putting
|
||
sections at particular addresses when using a format which can not
|
||
represent section addresses, such as a.out.
|
||
|
||
`-b BFDNAME'
|
||
`--target=BFDNAME'
|
||
Specify that the object-code format for the object files is
|
||
BFDNAME. This option may not be necessary; OBJDUMP can
|
||
automatically recognize many formats.
|
||
|
||
For example,
|
||
xt-objdump -b oasys -m vax -h fu.o
|
||
displays summary information from the section headers (`-h') of
|
||
`fu.o', which is explicitly identified (`-m') as a VAX object file
|
||
in the format produced by Oasys compilers. You can list the
|
||
formats available with the `-i' option. *Note Target Selection::,
|
||
for more information.
|
||
|
||
`-C'
|
||
`--demangle[=STYLE]'
|
||
Decode ("demangle") low-level symbol names into user-level names.
|
||
Besides removing any initial underscore prepended by the system,
|
||
this makes C++ function names readable. Different compilers have
|
||
different mangling styles. The optional demangling style argument
|
||
can be used to choose an appropriate demangling style for your
|
||
compiler. *Note c++filt::, for more information on demangling.
|
||
|
||
`-g'
|
||
`--debugging'
|
||
Display debugging information. This attempts to parse STABS and
|
||
IEEE debugging format information stored in the file and print it
|
||
out using a C like syntax. If neither of these formats are found
|
||
this option falls back on the `-W' option to print any DWARF
|
||
information in the file.
|
||
|
||
`-e'
|
||
`--debugging-tags'
|
||
Like `-g', but the information is generated in a format compatible
|
||
with ctags tool.
|
||
|
||
`-d'
|
||
`--disassemble'
|
||
Display the assembler mnemonics for the machine instructions from
|
||
OBJFILE. This option only disassembles those sections which are
|
||
expected to contain instructions.
|
||
|
||
`-D'
|
||
`--disassemble-all'
|
||
Like `-d', but disassemble the contents of all sections, not just
|
||
those expected to contain instructions.
|
||
|
||
`--prefix-addresses'
|
||
When disassembling, print the complete address on each line. This
|
||
is the older disassembly format.
|
||
|
||
`-EB'
|
||
`-EL'
|
||
`--endian={big|little}'
|
||
Specify the endianness of the object files. This only affects
|
||
disassembly. This can be useful when disassembling a file format
|
||
which does not describe endianness information, such as S-records.
|
||
|
||
`-f'
|
||
`--file-headers'
|
||
Display summary information from the overall header of each of the
|
||
OBJFILE files.
|
||
|
||
`-F'
|
||
`--file-offsets'
|
||
When disassembling sections, whenever a symbol is displayed, also
|
||
display the file offset of the region of data that is about to be
|
||
dumped. If zeroes are being skipped, then when disassembly
|
||
resumes, tell the user how many zeroes were skipped and the file
|
||
offset of the location from where the disassembly resumes. When
|
||
dumping sections, display the file offset of the location from
|
||
where the dump starts.
|
||
|
||
`--file-start-context'
|
||
Specify that when displaying interlisted source code/disassembly
|
||
(assumes `-S') from a file that has not yet been displayed, extend
|
||
the context to the start of the file.
|
||
|
||
`-h'
|
||
`--section-headers'
|
||
`--headers'
|
||
Display summary information from the section headers of the object
|
||
file.
|
||
|
||
File segments may be relocated to nonstandard addresses, for
|
||
example by using the `-Ttext', `-Tdata', or `-Tbss' options to
|
||
`ld'. However, some object file formats, such as a.out, do not
|
||
store the starting address of the file segments. In those
|
||
situations, although `ld' relocates the sections correctly, using
|
||
`xt-objdump -h' to list the file section headers cannot show the
|
||
correct addresses. Instead, it shows the usual addresses, which
|
||
are implicit for the target.
|
||
|
||
`-H'
|
||
`--help'
|
||
Print a summary of the options to `objdump' and exit.
|
||
|
||
`-i'
|
||
`--info'
|
||
Display a list showing all architectures and object formats
|
||
available for specification with `-b' or `-m'.
|
||
|
||
`-j NAME'
|
||
`--section=NAME'
|
||
Display information only for section NAME.
|
||
|
||
`-l'
|
||
`--line-numbers'
|
||
Label the display (using debugging information) with the filename
|
||
and source line numbers corresponding to the object code or relocs
|
||
shown. Only useful with `-d', `-D', or `-r'.
|
||
|
||
`-m MACHINE'
|
||
`--architecture=MACHINE'
|
||
Specify the architecture to use when disassembling object files.
|
||
This can be useful when disassembling object files which do not
|
||
describe architecture information, such as S-records. You can
|
||
list the available architectures with the `-i' option.
|
||
|
||
`-M OPTIONS'
|
||
`--disassembler-options=OPTIONS'
|
||
Pass target specific information to the disassembler. Only
|
||
supported on some targets. If it is necessary to specify more
|
||
than one disassembler option then multiple `-M' options can be
|
||
used or can be placed together into a comma separated list.
|
||
|
||
`-p'
|
||
`--private-headers'
|
||
Print information that is specific to the object file format. The
|
||
exact information printed depends upon the object file format.
|
||
For some object file formats, no additional information is printed.
|
||
|
||
`-P OPTIONS'
|
||
`--private=OPTIONS'
|
||
Print information that is specific to the object file format. The
|
||
argument OPTIONS is a comma separated list that depends on the
|
||
format (the lists of options is displayed with the help).
|
||
|
||
For XCOFF, the available options are: `header', `aout',
|
||
`sections', `syms', `relocs', `lineno', `loader', `except',
|
||
`typchk', `traceback' and `toc'.
|
||
|
||
`-r'
|
||
`--reloc'
|
||
Print the relocation entries of the file. If used with `-d' or
|
||
`-D', the relocations are printed interspersed with the
|
||
disassembly.
|
||
|
||
`-R'
|
||
`--dynamic-reloc'
|
||
Print the dynamic relocation entries of the file. This is only
|
||
meaningful for dynamic objects, such as certain types of shared
|
||
libraries. As for `-r', if used with `-d' or `-D', the
|
||
relocations are printed interspersed with the disassembly.
|
||
|
||
`-s'
|
||
`--full-contents'
|
||
Display the full contents of any sections requested. By default
|
||
all non-empty sections are displayed.
|
||
|
||
`-S'
|
||
`--source'
|
||
Display source code intermixed with disassembly, if possible.
|
||
Implies `-d'.
|
||
|
||
`--prefix=PREFIX'
|
||
Specify PREFIX to add to the absolute paths when used with `-S'.
|
||
|
||
`--prefix-strip=LEVEL'
|
||
Indicate how many initial directory names to strip off the
|
||
hardwired absolute paths. It has no effect without
|
||
`--prefix='PREFIX.
|
||
|
||
`--show-raw-insn'
|
||
When disassembling instructions, print the instruction in hex as
|
||
well as in symbolic form. This is the default except when
|
||
`--prefix-addresses' is used.
|
||
|
||
`--no-show-raw-insn'
|
||
When disassembling instructions, do not print the instruction
|
||
bytes. This is the default when `--prefix-addresses' is used.
|
||
|
||
`--insn-width=WIDTH'
|
||
Display WIDTH bytes on a single line when disassembling
|
||
instructions.
|
||
|
||
`-W[lLiaprmfFsoRt]'
|
||
`--dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]'
|
||
Displays the contents of the debug sections in the file, if any are
|
||
present. If one of the optional letters or words follows the
|
||
switch then only data found in those specific sections will be
|
||
dumped.
|
||
|
||
Note that there is no single letter option to display the content
|
||
of trace sections or .gdb_index.
|
||
|
||
Note: the output from the `=info' option can also be affected by
|
||
the options `--dwarf-depth', the `--dwarf-start' and the
|
||
`--dwarf-check'.
|
||
|
||
`--dwarf-depth=N'
|
||
Limit the dump of the `.debug_info' section to N children. This
|
||
is only useful with `--dwarf=info'. The default is to print all
|
||
DIEs; the special value 0 for N will also have this effect.
|
||
|
||
With a non-zero value for N, DIEs at or deeper than N levels will
|
||
not be printed. The range for N is zero-based.
|
||
|
||
`--dwarf-start=N'
|
||
Print only DIEs beginning with the DIE numbered N. This is only
|
||
useful with `--dwarf=info'.
|
||
|
||
If specified, this option will suppress printing of any header
|
||
information and all DIEs before the DIE numbered N. Only siblings
|
||
and children of the specified DIE will be printed.
|
||
|
||
This can be used in conjunction with `--dwarf-depth'.
|
||
|
||
`--dwarf-check'
|
||
Enable additional checks for consistency of Dwarf information.
|
||
|
||
`-G'
|
||
`--stabs'
|
||
Display the full contents of any sections requested. Display the
|
||
contents of the .stab and .stab.index and .stab.excl sections from
|
||
an ELF file. This is only useful on systems (such as Solaris 2.0)
|
||
in which `.stab' debugging symbol-table entries are carried in an
|
||
ELF section. In most other file formats, debugging symbol-table
|
||
entries are interleaved with linkage symbols, and are visible in
|
||
the `--syms' output.
|
||
|
||
`--start-address=ADDRESS'
|
||
Start displaying data at the specified address. This affects the
|
||
output of the `-d', `-r' and `-s' options.
|
||
|
||
`--stop-address=ADDRESS'
|
||
Stop displaying data at the specified address. This affects the
|
||
output of the `-d', `-r' and `-s' options.
|
||
|
||
`-t'
|
||
`--syms'
|
||
Print the symbol table entries of the file. This is similar to
|
||
the information provided by the `nm' program, although the display
|
||
format is different. The format of the output depends upon the
|
||
format of the file being dumped, but there are two main types.
|
||
One looks like this:
|
||
|
||
[ 4](sec 3)(fl 0x00)(ty 0)(scl 3) (nx 1) 0x00000000 .bss
|
||
[ 6](sec 1)(fl 0x00)(ty 0)(scl 2) (nx 0) 0x00000000 fred
|
||
|
||
where the number inside the square brackets is the number of the
|
||
entry in the symbol table, the SEC number is the section number,
|
||
the FL value are the symbol's flag bits, the TY number is the
|
||
symbol's type, the SCL number is the symbol's storage class and
|
||
the NX value is the number of auxilary entries associated with the
|
||
symbol. The last two fields are the symbol's value and its name.
|
||
|
||
The other common output format, usually seen with ELF based files,
|
||
looks like this:
|
||
|
||
00000000 l d .bss 00000000 .bss
|
||
00000000 g .text 00000000 fred
|
||
|
||
Here the first number is the symbol's value (sometimes refered to
|
||
as its address). The next field is actually a set of characters
|
||
and spaces indicating the flag bits that are set on the symbol.
|
||
These characters are described below. Next is the section with
|
||
which the symbol is associated or _*ABS*_ if the section is
|
||
absolute (ie not connected with any section), or _*UND*_ if the
|
||
section is referenced in the file being dumped, but not defined
|
||
there.
|
||
|
||
After the section name comes another field, a number, which for
|
||
common symbols is the alignment and for other symbol is the size.
|
||
Finally the symbol's name is displayed.
|
||
|
||
The flag characters are divided into 7 groups as follows:
|
||
`l'
|
||
`g'
|
||
`u'
|
||
`!'
|
||
The symbol is a local (l), global (g), unique global (u),
|
||
neither global nor local (a space) or both global and local
|
||
(!). A symbol can be neither local or global for a variety
|
||
of reasons, e.g., because it is used for debugging, but it is
|
||
probably an indication of a bug if it is ever both local and
|
||
global. Unique global symbols are a GNU extension to the
|
||
standard set of ELF symbol bindings. For such a symbol the
|
||
dynamic linker will make sure that in the entire process
|
||
there is just one symbol with this name and type in use.
|
||
|
||
`w'
|
||
The symbol is weak (w) or strong (a space).
|
||
|
||
`C'
|
||
The symbol denotes a constructor (C) or an ordinary symbol (a
|
||
space).
|
||
|
||
`W'
|
||
The symbol is a warning (W) or a normal symbol (a space). A
|
||
warning symbol's name is a message to be displayed if the
|
||
symbol following the warning symbol is ever referenced.
|
||
|
||
`I'
|
||
|
||
`i'
|
||
The symbol is an indirect reference to another symbol (I), a
|
||
function to be evaluated during reloc processing (i) or a
|
||
normal symbol (a space).
|
||
|
||
`d'
|
||
`D'
|
||
The symbol is a debugging symbol (d) or a dynamic symbol (D)
|
||
or a normal symbol (a space).
|
||
|
||
`F'
|
||
|
||
`f'
|
||
|
||
`O'
|
||
The symbol is the name of a function (F) or a file (f) or an
|
||
object (O) or just a normal symbol (a space).
|
||
|
||
`-T'
|
||
`--dynamic-syms'
|
||
Print the dynamic symbol table entries of the file. This is only
|
||
meaningful for dynamic objects, such as certain types of shared
|
||
libraries. This is similar to the information provided by the `nm'
|
||
program when given the `-D' (`--dynamic') option.
|
||
|
||
`--special-syms'
|
||
When displaying symbols include those which the target considers
|
||
to be special in some way and which would not normally be of
|
||
interest to the user.
|
||
|
||
`-V'
|
||
`--version'
|
||
Print the version number of `objdump' and exit.
|
||
|
||
`-x'
|
||
`--all-headers'
|
||
Display all available header information, including the symbol
|
||
table and relocation entries. Using `-x' is equivalent to
|
||
specifying all of `-a -f -h -p -r -t'.
|
||
|
||
`--xtensa-core=NAME'
|
||
Specify the name of an Xtensa processor core configuration to use.
|
||
The configuration information is taken from the entry for NAME in
|
||
the Xtensa core registry (see the `--xtensa-system' option). If
|
||
this option is not specified, the Xtensa core name is either the
|
||
value of the `XTENSA_CORE' environment variable or "default" if
|
||
that variable is not set.
|
||
|
||
`--xtensa-system=REGISTRY'
|
||
Specify a directory to be used as the Xtensa core registry. If
|
||
this option is not set, the `XTENSA_SYSTEM' environment variable
|
||
specifies the Xtensa registry, and if that is not set, the default
|
||
registry, `<xtensa_tools_root>/config', is used. Please see the
|
||
`Xtensa Software Development Toolkit User's Guide' for more
|
||
information about Xtensa core registries.
|
||
|
||
`--xtensa-params=PATH'
|
||
Specify the location of the parameter file in a TIE Development Kit
|
||
(TDK) that was produced by running the TIE Compiler (tc). If PATH
|
||
identifies a directory rather than a file, the parameters are read
|
||
from a file named `default-params' if it exists in that directory.
|
||
The parameter file may also be specified by setting the
|
||
`XTENSA_PARAMS' environment variable. The `--xtensa-params'
|
||
option takes precedence over the environment variable. See the
|
||
`Tensilica Instruction Extension (TIE) Language User's Guide' for
|
||
more information.
|
||
|
||
`--dump-insn-tables'
|
||
For each section that has instruction table entries, print out the
|
||
instruction table entries for the section. Instruction table
|
||
entries are used to keep track of what parts of an Xtensa object
|
||
file were assembled as source instructions.
|
||
|
||
`--show-only-insns'
|
||
When disassembling a section, only display the instructions that
|
||
are marked in the instruction tables. If an object file does not
|
||
have complete instruction tables, this option has no effect.
|
||
|
||
`-w'
|
||
`--wide'
|
||
Format some lines for output devices that have more than 80
|
||
columns. Also do not truncate symbol names when they are
|
||
displayed.
|
||
|
||
`-z'
|
||
`--disassemble-zeroes'
|
||
Normally the disassembly output will skip blocks of zeroes. This
|
||
option directs the disassembler to disassemble those blocks, just
|
||
like any other data.
|
||
|
||
|
||
File: binutils.info, Node: ranlib, Next: readelf, Prev: objdump, Up: Top
|
||
|
||
5 ranlib
|
||
********
|
||
|
||
xt-ranlib [`--plugin' NAME] [`-DhHvVt'] ARCHIVE
|
||
|
||
`ranlib' generates an index to the contents of an archive and stores
|
||
it in the archive. The index lists each symbol defined by a member of
|
||
an archive that is a relocatable object file.
|
||
|
||
You may use `xt-nm -s' or `xt-nm --print-armap' to list this index.
|
||
|
||
An archive with such an index speeds up linking to the library and
|
||
allows routines in the library to call each other without regard to
|
||
their placement in the archive.
|
||
|
||
The GNU `ranlib' program is another form of GNU `ar'; running
|
||
`xt-ranlib' is completely equivalent to executing `xt-ar -s'. *Note
|
||
ar::.
|
||
|
||
`-h'
|
||
`-H'
|
||
`--help'
|
||
Show usage information for `ranlib'.
|
||
|
||
`-v'
|
||
`-V'
|
||
`--version'
|
||
Show the version number of `ranlib'.
|
||
|
||
`-D'
|
||
Operate in _deterministic_ mode. The symbol map archive member's
|
||
header will show zero for the UID, GID, and timestamp. When this
|
||
option is used, multiple runs will produce identical output files.
|
||
|
||
This is the default unless `binutils' was configured with
|
||
`--enable-deterministic-archives'.
|
||
|
||
`-t'
|
||
Update the timestamp of the symbol map of an archive.
|
||
|
||
`-U'
|
||
Do _not_ operate in _deterministic_ mode. This is the inverse of
|
||
the `-D' option, above: the archive index will get actual UID,
|
||
GID, timestamp, and file mode values.
|
||
|
||
This is the default unless `binutils' was configured with
|
||
`--enable-deterministic-archives'.
|
||
|
||
|
||
File: binutils.info, Node: size, Next: strings, Prev: readelf, Up: Top
|
||
|
||
6 size
|
||
******
|
||
|
||
xt-size [`-A'|`-B'|`-C'|`--format='COMPATIBILITY]
|
||
[`--help']
|
||
[`-d'|`-o'|`-x'|`--radix='NUMBER]
|
||
[`--common']
|
||
[`-t'|`--totals']
|
||
[`--target='BFDNAME] [`-V'|`--version']
|
||
[OBJFILE...]
|
||
|
||
The GNU `size' utility lists the section sizes--and the total
|
||
size--for each of the object or archive files OBJFILE in its argument
|
||
list. By default, one line of output is generated for each object file
|
||
or each module in an archive.
|
||
|
||
OBJFILE... are the object files to be examined. If none are
|
||
specified, the file `a.out' will be used.
|
||
|
||
The command line options have the following meanings:
|
||
|
||
`-A'
|
||
`-B'
|
||
`-C'
|
||
`--format=COMPATIBILITY'
|
||
Using one of these options, you can choose whether the output from
|
||
GNU `size' resembles output from System V `size' (using `-A', or
|
||
`--format=sysv'), or Berkeley `size' (using `-B', or
|
||
`--format=berkeley'). You can also select a special output format
|
||
for Xtensa processors using `-C' or `--format=xtensa'. The
|
||
default is the one-line format similar to Berkeley's.
|
||
|
||
Here is an example of the Berkeley (default) format of output from
|
||
`size':
|
||
|
||
$ xt-size --format=Berkeley ranlib size
|
||
text data bss dec hex filename
|
||
294880 81920 11592 388392 5ed28 ranlib
|
||
294880 81920 11888 388688 5ee50 size
|
||
|
||
This is the same data, but displayed closer to System V
|
||
conventions:
|
||
|
||
$ xt-size --format=SysV ranlib size
|
||
ranlib :
|
||
section size addr
|
||
.text 294880 8192
|
||
.data 81920 303104
|
||
.bss 11592 385024
|
||
Total 388392
|
||
|
||
size :
|
||
section size addr
|
||
.text 294880 8192
|
||
.data 81920 303104
|
||
.bss 11888 385024
|
||
Total 388688
|
||
|
||
The Xtensa format is similar to the Berkeley format except that it
|
||
separates `readonly' sections from `text' sections. In addition
|
||
it categorizes the space for each of the section types into
|
||
`code', `literal' and `other'. Each category is shown on a
|
||
separate line in the output, along with a `Total' line for all the
|
||
categories combined. For example:
|
||
|
||
$ xt-size --format=xtensa ranlib size
|
||
TYPE text rodata data bss dec hex filename
|
||
code 13339 0 0 0 13339 341b ranlib
|
||
literal 1592 0 0 0 1592 638 ranlib
|
||
other 1756 12471 344 508 15079 3ae7 ranlib
|
||
Total 16687 12471 344 508 30010 753a ranlib
|
||
|
||
code 4107 0 0 0 4107 100b size
|
||
literal 832 0 0 0 832 340 size
|
||
other 708 5079 392 324 6503 1967 size
|
||
Total 5647 5079 392 324 11442 2cb2 size
|
||
|
||
The `code' category in the Xtensa format includes all the Xtensa
|
||
instructions, and the `literal' category includes all the data
|
||
known to be literals for `L32R' Xtensa instructions. Space for
|
||
anything else, such as program data or padding for alignment, is
|
||
shown in the `other' category.
|
||
|
||
`--help'
|
||
Show a summary of acceptable arguments and options.
|
||
|
||
`-d'
|
||
`-o'
|
||
`-x'
|
||
`--radix=NUMBER'
|
||
Using one of these options, you can control whether the size of
|
||
each section is given in decimal (`-d', or `--radix=10'); octal
|
||
(`-o', or `--radix=8'); or hexadecimal (`-x', or `--radix=16').
|
||
In `--radix=NUMBER', only the three values (8, 10, 16) are
|
||
supported. The total size is always given in two radices; decimal
|
||
and hexadecimal for `-d' or `-x' output, or octal and hexadecimal
|
||
if you're using `-o'.
|
||
|
||
`--common'
|
||
Print total size of common symbols in each file. When using
|
||
Berkeley format these are included in the bss size.
|
||
|
||
`-t'
|
||
`--totals'
|
||
Show totals of all objects listed (Berkeley format listing mode
|
||
only).
|
||
|
||
`--target=BFDNAME'
|
||
Specify that the object-code format for OBJFILE is BFDNAME. This
|
||
option may not be necessary; `size' can automatically recognize
|
||
many formats. *Note Target Selection::, for more information.
|
||
|
||
`--xtensa-core=NAME'
|
||
Specify the name of an Xtensa processor core configuration to use.
|
||
The configuration information is taken from the entry for NAME in
|
||
the Xtensa core registry (see the `--xtensa-system' option). If
|
||
this option is not specified, the Xtensa core name is either the
|
||
value of the `XTENSA_CORE' environment variable or "default" if
|
||
that variable is not set.
|
||
|
||
`--xtensa-system=REGISTRY'
|
||
Specify a directory to be used as the Xtensa core registry. If
|
||
this option is not set, the `XTENSA_SYSTEM' environment variable
|
||
specifies the Xtensa registry, and if that is not set, the default
|
||
registry, `<xtensa_tools_root>/config', is used. Please see the
|
||
`Xtensa Software Development Toolkit User's Guide' for more
|
||
information about Xtensa core registries.
|
||
|
||
`--xtensa-params=PATH'
|
||
Specify the location of the parameter file in a TIE Development Kit
|
||
(TDK) that was produced by running the TIE Compiler (tc). If PATH
|
||
identifies a directory rather than a file, the parameters are read
|
||
from a file named `default-params' if it exists in that directory.
|
||
The parameter file may also be specified by setting the
|
||
`XTENSA_PARAMS' environment variable. The `--xtensa-params'
|
||
option takes precedence over the environment variable. See the
|
||
`Tensilica Instruction Extension (TIE) Language User's Guide' for
|
||
more information.
|
||
|
||
`-V'
|
||
`--version'
|
||
Display the version number of `size'.
|
||
|
||
|
||
File: binutils.info, Node: strings, Next: strip, Prev: size, Up: Top
|
||
|
||
7 strings
|
||
*********
|
||
|
||
xt-strings [`-afov'] [`-'MIN-LEN]
|
||
[`-n' MIN-LEN] [`--bytes='MIN-LEN]
|
||
[`-t' RADIX] [`--radix='RADIX]
|
||
[`-e' ENCODING] [`--encoding='ENCODING]
|
||
[`-'] [`--all'] [`--print-file-name']
|
||
[`-T' BFDNAME] [`--target='BFDNAME]
|
||
[`--help'] [`--version'] FILE...
|
||
|
||
For each FILE given, GNU `strings' prints the printable character
|
||
sequences that are at least 4 characters long (or the number given with
|
||
the options below) and are followed by an unprintable character. By
|
||
default, it only prints the strings from the initialized and loaded
|
||
sections of object files; for other types of files, it prints the
|
||
strings from the whole file.
|
||
|
||
`strings' is mainly useful for determining the contents of non-text
|
||
files.
|
||
|
||
`-a'
|
||
`--all'
|
||
`-'
|
||
Do not scan only the initialized and loaded sections of object
|
||
files; scan the whole files.
|
||
|
||
`-f'
|
||
`--print-file-name'
|
||
Print the name of the file before each string.
|
||
|
||
`--help'
|
||
Print a summary of the program usage on the standard output and
|
||
exit.
|
||
|
||
`-MIN-LEN'
|
||
`-n MIN-LEN'
|
||
`--bytes=MIN-LEN'
|
||
Print sequences of characters that are at least MIN-LEN characters
|
||
long, instead of the default 4.
|
||
|
||
`-o'
|
||
Like `-t o'. Some other versions of `strings' have `-o' act like
|
||
`-t d' instead. Since we can not be compatible with both ways, we
|
||
simply chose one.
|
||
|
||
`-t RADIX'
|
||
`--radix=RADIX'
|
||
Print the offset within the file before each string. The single
|
||
character argument specifies the radix of the offset--`o' for
|
||
octal, `x' for hexadecimal, or `d' for decimal.
|
||
|
||
`-e ENCODING'
|
||
`--encoding=ENCODING'
|
||
Select the character encoding of the strings that are to be found.
|
||
Possible values for ENCODING are: `s' = single-7-bit-byte
|
||
characters (ASCII, ISO 8859, etc., default), `S' =
|
||
single-8-bit-byte characters, `b' = 16-bit bigendian, `l' = 16-bit
|
||
littleendian, `B' = 32-bit bigendian, `L' = 32-bit littleendian.
|
||
Useful for finding wide character strings. (`l' and `b' apply to,
|
||
for example, Unicode UTF-16/UCS-2 encodings).
|
||
|
||
`-T BFDNAME'
|
||
`--target=BFDNAME'
|
||
Specify an object code format other than your system's default
|
||
format. *Note Target Selection::, for more information.
|
||
|
||
`-v'
|
||
`-V'
|
||
`--version'
|
||
Print the program version number on the standard output and exit.
|
||
|
||
|
||
File: binutils.info, Node: strip, Next: elfedit, Prev: strings, Up: Top
|
||
|
||
8 strip
|
||
*******
|
||
|
||
xt-strip [`-F' BFDNAME |`--target='BFDNAME]
|
||
[`-I' BFDNAME |`--input-target='BFDNAME]
|
||
[`-O' BFDNAME |`--output-target='BFDNAME]
|
||
[`-s'|`--strip-all']
|
||
[`-S'|`-g'|`-d'|`--strip-debug']
|
||
[`--strip-dwo']
|
||
[`-K' SYMBOLNAME |`--keep-symbol='SYMBOLNAME]
|
||
[`-N' SYMBOLNAME |`--strip-symbol='SYMBOLNAME]
|
||
[`-w'|`--wildcard']
|
||
[`-x'|`--discard-all'] [`-X' |`--discard-locals']
|
||
[`-R' SECTIONNAME |`--remove-section='SECTIONNAME]
|
||
[`-o' FILE] [`-p'|`--preserve-dates']
|
||
[`-D'|`--enable-deterministic-archives']
|
||
[`-U'|`--disable-deterministic-archives']
|
||
[`--keep-file-symbols']
|
||
[`--only-keep-debug']
|
||
[`--xtensa-core='NAME]
|
||
[`--xtensa-system='REGISTRY]
|
||
[`--xtensa-params='PATH]
|
||
[`-v' |`--verbose'] [`-V'|`--version']
|
||
[`--help'] [`--info']
|
||
OBJFILE...
|
||
|
||
GNU `strip' discards all symbols from object files OBJFILE. The
|
||
list of object files may include archives. At least one object file
|
||
must be given.
|
||
|
||
`strip' modifies the files named in its argument, rather than
|
||
writing modified copies under different names.
|
||
|
||
`-F BFDNAME'
|
||
`--target=BFDNAME'
|
||
Treat the original OBJFILE as a file with the object code format
|
||
BFDNAME, and rewrite it in the same format. *Note Target
|
||
Selection::, for more information.
|
||
|
||
`--help'
|
||
Show a summary of the options to `strip' and exit.
|
||
|
||
`--info'
|
||
Display a list showing all architectures and object formats
|
||
available.
|
||
|
||
`-I BFDNAME'
|
||
`--input-target=BFDNAME'
|
||
Treat the original OBJFILE as a file with the object code format
|
||
BFDNAME. *Note Target Selection::, for more information.
|
||
|
||
`-O BFDNAME'
|
||
`--output-target=BFDNAME'
|
||
Replace OBJFILE with a file in the output format BFDNAME. *Note
|
||
Target Selection::, for more information.
|
||
|
||
`-R SECTIONNAME'
|
||
`--remove-section=SECTIONNAME'
|
||
Remove any section named SECTIONNAME from the output file. This
|
||
option may be given more than once. Note that using this option
|
||
inappropriately may make the output file unusable.
|
||
|
||
`-s'
|
||
`--strip-all'
|
||
Remove all symbols.
|
||
|
||
`-g'
|
||
`-S'
|
||
`-d'
|
||
`--strip-debug'
|
||
Remove debugging symbols only.
|
||
|
||
`--strip-dwo'
|
||
Remove the contents of all DWARF .dwo sections, leaving the
|
||
remaining debugging sections and all symbols intact. See the
|
||
description of this option in the `objcopy' section for more
|
||
information.
|
||
|
||
`--strip-unneeded'
|
||
Remove all symbols that are not needed for relocation processing.
|
||
|
||
`-K SYMBOLNAME'
|
||
`--keep-symbol=SYMBOLNAME'
|
||
When stripping symbols, keep symbol SYMBOLNAME even if it would
|
||
normally be stripped. This option may be given more than once.
|
||
|
||
`-N SYMBOLNAME'
|
||
`--strip-symbol=SYMBOLNAME'
|
||
Remove symbol SYMBOLNAME from the source file. This option may be
|
||
given more than once, and may be combined with strip options other
|
||
than `-K'.
|
||
|
||
`-o FILE'
|
||
Put the stripped output in FILE, rather than replacing the
|
||
existing file. When this argument is used, only one OBJFILE
|
||
argument may be specified.
|
||
|
||
`-p'
|
||
`--preserve-dates'
|
||
Preserve the access and modification dates of the file.
|
||
|
||
`-D'
|
||
`--enable-deterministic-archives'
|
||
Operate in _deterministic_ mode. When copying archive members and
|
||
writing the archive index, use zero for UIDs, GIDs, timestamps,
|
||
and use consistent file modes for all files.
|
||
|
||
If `binutils' was configured with
|
||
`--enable-deterministic-archives', then this mode is on by default.
|
||
It can be disabled with the `-U' option, below.
|
||
|
||
`-U'
|
||
`--disable-deterministic-archives'
|
||
Do _not_ operate in _deterministic_ mode. This is the inverse of
|
||
the `-D' option, above: when copying archive members and writing
|
||
the archive index, use their actual UID, GID, timestamp, and file
|
||
mode values.
|
||
|
||
This is the default unless `binutils' was configured with
|
||
`--enable-deterministic-archives'.
|
||
|
||
`-w'
|
||
`--wildcard'
|
||
Permit regular expressions in SYMBOLNAMEs used in other command
|
||
line options. The question mark (?), asterisk (*), backslash (\)
|
||
and square brackets ([]) operators can be used anywhere in the
|
||
symbol name. If the first character of the symbol name is the
|
||
exclamation point (!) then the sense of the switch is reversed for
|
||
that symbol. For example:
|
||
|
||
-w -K !foo -K fo*
|
||
|
||
would cause strip to only keep symbols that start with the letters
|
||
"fo", but to discard the symbol "foo".
|
||
|
||
`-x'
|
||
`--discard-all'
|
||
Remove non-global symbols.
|
||
|
||
`-X'
|
||
`--discard-locals'
|
||
Remove compiler-generated local symbols. (These usually start
|
||
with `L' or `.'.)
|
||
|
||
`--keep-file-symbols'
|
||
When stripping a file, perhaps with `--strip-debug' or
|
||
`--strip-unneeded', retain any symbols specifying source file
|
||
names, which would otherwise get stripped.
|
||
|
||
`--only-keep-debug'
|
||
Strip a file, removing contents of any sections that would not be
|
||
stripped by `--strip-debug' and leaving the debugging sections
|
||
intact. In ELF files, this preserves all note sections in the
|
||
output.
|
||
|
||
The intention is that this option will be used in conjunction with
|
||
`--add-gnu-debuglink' to create a two part executable. One a
|
||
stripped binary which will occupy less space in RAM and in a
|
||
distribution and the second a debugging information file which is
|
||
only needed if debugging abilities are required. The suggested
|
||
procedure to create these files is as follows:
|
||
|
||
1. Link the executable as normal. Assuming that is is called
|
||
`foo' then...
|
||
|
||
2. Run `xt-objcopy --only-keep-debug foo foo.dbg' to create a
|
||
file containing the debugging info.
|
||
|
||
3. Run `xt-objcopy --strip-debug foo' to create a stripped
|
||
executable.
|
||
|
||
4. Run `xt-objcopy --add-gnu-debuglink=foo.dbg foo' to add a
|
||
link to the debugging info into the stripped executable.
|
||
|
||
Note--the choice of `.dbg' as an extension for the debug info file
|
||
is arbitrary. Also the `--only-keep-debug' step is optional. You
|
||
could instead do this:
|
||
|
||
1. Link the executable as normal.
|
||
|
||
2. Copy `foo' to `foo.full'
|
||
|
||
3. Run `xt-strip --strip-debug foo'
|
||
|
||
4. Run `xt-objcopy --add-gnu-debuglink=foo.full foo'
|
||
|
||
i.e., the file pointed to by the `--add-gnu-debuglink' can be the
|
||
full executable. It does not have to be a file created by the
|
||
`--only-keep-debug' switch.
|
||
|
||
Note--this switch is only intended for use on fully linked files.
|
||
It does not make sense to use it on object files where the
|
||
debugging information may be incomplete. Besides the
|
||
gnu_debuglink feature currently only supports the presence of one
|
||
filename containing debugging information, not multiple filenames
|
||
on a one-per-object-file basis.
|
||
|
||
`-V'
|
||
`--version'
|
||
Show the version number for `strip'.
|
||
|
||
`-v'
|
||
`--verbose'
|
||
Verbose output: list all object files modified. In the case of
|
||
archives, `xt-strip -v' lists all members of the archive.
|
||
|
||
|
||
File: binutils.info, Node: c++filt, Next: addr2line, Prev: elfedit, Up: Top
|
||
|
||
9 c++filt
|
||
*********
|
||
|
||
xt-c++filt [`-_'|`--strip-underscore']
|
||
[`-n'|`--no-strip-underscore']
|
||
[`-p'|`--no-params']
|
||
[`-t'|`--types']
|
||
[`-i'|`--no-verbose']
|
||
[`-s' FORMAT|`--format='FORMAT]
|
||
[`--help'] [`--version'] [SYMBOL...]
|
||
|
||
The C++ and Java languages provide function overloading, which means
|
||
that you can write many functions with the same name, providing that
|
||
each function takes parameters of different types. In order to be able
|
||
to distinguish these similarly named functions C++ and Java encode them
|
||
into a low-level assembler name which uniquely identifies each
|
||
different version. This process is known as "mangling". The `c++filt'
|
||
(1) program does the inverse mapping: it decodes ("demangles") low-level
|
||
names into user-level names so that they can be read.
|
||
|
||
Every alphanumeric word (consisting of letters, digits, underscores,
|
||
dollars, or periods) seen in the input is a potential mangled name. If
|
||
the name decodes into a C++ name, the C++ name replaces the low-level
|
||
name in the output, otherwise the original word is output. In this way
|
||
you can pass an entire assembler source file, containing mangled names,
|
||
through `c++filt' and see the same source file containing demangled
|
||
names.
|
||
|
||
You can also use `c++filt' to decipher individual symbols by passing
|
||
them on the command line:
|
||
|
||
xt-c++filt SYMBOL
|
||
|
||
If no SYMBOL arguments are given, `c++filt' reads symbol names from
|
||
the standard input instead. All the results are printed on the
|
||
standard output. The difference between reading names from the command
|
||
line versus reading names from the standard input is that command line
|
||
arguments are expected to be just mangled names and no checking is
|
||
performed to separate them from surrounding text. Thus for example:
|
||
|
||
c++filt -n _Z1fv
|
||
|
||
will work and demangle the name to "f()" whereas:
|
||
|
||
c++filt -n _Z1fv,
|
||
|
||
will not work. (Note the extra comma at the end of the mangled name
|
||
which makes it invalid). This command however will work:
|
||
|
||
echo _Z1fv, | c++filt -n
|
||
|
||
and will display "f(),", i.e., the demangled name followed by a
|
||
trailing comma. This behaviour is because when the names are read from
|
||
the standard input it is expected that they might be part of an
|
||
assembler source file where there might be extra, extraneous characters
|
||
trailing after a mangled name. For example:
|
||
|
||
.type _Z1fv, @function
|
||
|
||
`-_'
|
||
`--strip-underscore'
|
||
On some systems, both the C and C++ compilers put an underscore in
|
||
front of every name. For example, the C name `foo' gets the
|
||
low-level name `_foo'. This option removes the initial
|
||
underscore. Whether `c++filt' removes the underscore by default
|
||
is target dependent.
|
||
|
||
`-n'
|
||
`--no-strip-underscore'
|
||
Do not remove the initial underscore.
|
||
|
||
`-p'
|
||
`--no-params'
|
||
When demangling the name of a function, do not display the types of
|
||
the function's parameters.
|
||
|
||
`-t'
|
||
`--types'
|
||
Attempt to demangle types as well as function names. This is
|
||
disabled by default since mangled types are normally only used
|
||
internally in the compiler, and they can be confused with
|
||
non-mangled names. For example, a function called "a" treated as
|
||
a mangled type name would be demangled to "signed char".
|
||
|
||
`-i'
|
||
`--no-verbose'
|
||
Do not include implementation details (if any) in the demangled
|
||
output.
|
||
|
||
`-s FORMAT'
|
||
`--format=FORMAT'
|
||
`c++filt' can decode various methods of mangling, used by
|
||
different compilers. The argument to this option selects which
|
||
method it uses:
|
||
|
||
`auto'
|
||
Automatic selection based on executable (the default method)
|
||
|
||
`gnu'
|
||
the one used by the GNU C++ compiler (g++)
|
||
|
||
`lucid'
|
||
the one used by the Lucid compiler (lcc)
|
||
|
||
`arm'
|
||
the one specified by the C++ Annotated Reference Manual
|
||
|
||
`hp'
|
||
the one used by the HP compiler (aCC)
|
||
|
||
`edg'
|
||
the one used by the EDG compiler
|
||
|
||
`gnu-v3'
|
||
the one used by the GNU C++ compiler (g++) with the V3 ABI.
|
||
|
||
`java'
|
||
the one used by the GNU Java compiler (gcj)
|
||
|
||
`gnat'
|
||
the one used by the GNU Ada compiler (GNAT).
|
||
|
||
`--help'
|
||
Print a summary of the options to `c++filt' and exit.
|
||
|
||
`--version'
|
||
Print the version number of `c++filt' and exit.
|
||
|
||
_Warning:_ `c++filt' is a new utility, and the details of its user
|
||
interface are subject to change in future releases. In particular,
|
||
a command-line option may be required in the future to decode a
|
||
name passed as an argument on the command line; in other words,
|
||
|
||
xt-c++filt SYMBOL
|
||
|
||
may in a future release become
|
||
|
||
xt-c++filt OPTION SYMBOL
|
||
|
||
---------- Footnotes ----------
|
||
|
||
(1) MS-DOS does not allow `+' characters in file names, so on MS-DOS
|
||
this program is named `CXXFILT'.
|
||
|
||
|
||
File: binutils.info, Node: addr2line, Next: Common Options, Prev: c++filt, Up: Top
|
||
|
||
10 addr2line
|
||
************
|
||
|
||
xt-addr2line [`-a'|`--addresses']
|
||
[`-b' BFDNAME|`--target='BFDNAME]
|
||
[`-C'|`--demangle'[=STYLE]]
|
||
[`-e' FILENAME|`--exe='FILENAME]
|
||
[`-f'|`--functions'] [`-s'|`--basename']
|
||
[`-i'|`--inlines']
|
||
[`-p'|`--pretty-print']
|
||
[`-j'|`--section='NAME]
|
||
[`-H'|`--help'] [`-V'|`--version']
|
||
[`--xtensa-core='NAME]
|
||
[`--xtensa-system='REGISTRY]
|
||
[`--xtensa-params='PATH]
|
||
[addr addr ...]
|
||
|
||
`addr2line' translates addresses into file names and line numbers.
|
||
Given an address in an executable or an offset in a section of a
|
||
relocatable object, it uses the debugging information to figure out
|
||
which file name and line number are associated with it.
|
||
|
||
The executable or relocatable object to use is specified with the
|
||
`-e' option. The default is the file `a.out'. The section in the
|
||
relocatable object to use is specified with the `-j' option.
|
||
|
||
`addr2line' has two modes of operation.
|
||
|
||
In the first, hexadecimal addresses are specified on the command
|
||
line, and `addr2line' displays the file name and line number for each
|
||
address.
|
||
|
||
In the second, `addr2line' reads hexadecimal addresses from standard
|
||
input, and prints the file name and line number for each address on
|
||
standard output. In this mode, `addr2line' may be used in a pipe to
|
||
convert dynamically chosen addresses.
|
||
|
||
The format of the output is `FILENAME:LINENO'. The file name and
|
||
line number for each input address is printed on separate lines.
|
||
|
||
If the `-f' option is used, then each `FILENAME:LINENO' line is
|
||
preceded by `FUNCTIONNAME' which is the name of the function containing
|
||
the address.
|
||
|
||
If the `-i' option is used and the code at the given address is
|
||
present there because of inlining by the compiler then the
|
||
`{FUNCTIONNAME} FILENAME:LINENO' information for the inlining function
|
||
will be displayed afterwards. This continues recursively until there
|
||
is no more inlining to report.
|
||
|
||
If the `-a' option is used then the output is prefixed by the input
|
||
address.
|
||
|
||
If the `-p' option is used then the output for each input address is
|
||
displayed on one, possibly quite long, line. If `-p' is not used then
|
||
the output is broken up into multiple lines, based on the paragraphs
|
||
above.
|
||
|
||
If the file name or function name can not be determined, `addr2line'
|
||
will print two question marks in their place. If the line number can
|
||
not be determined, `addr2line' will print 0.
|
||
|
||
The long and short forms of options, shown here as alternatives, are
|
||
equivalent.
|
||
|
||
`-a'
|
||
`--addresses'
|
||
Display the address before the function name, file and line number
|
||
information. The address is printed with a `0x' prefix to easily
|
||
identify it.
|
||
|
||
`-b BFDNAME'
|
||
`--target=BFDNAME'
|
||
Specify that the object-code format for the object files is
|
||
BFDNAME.
|
||
|
||
`-C'
|
||
`--demangle[=STYLE]'
|
||
Decode ("demangle") low-level symbol names into user-level names.
|
||
Besides removing any initial underscore prepended by the system,
|
||
this makes C++ function names readable. Different compilers have
|
||
different mangling styles. The optional demangling style argument
|
||
can be used to choose an appropriate demangling style for your
|
||
compiler. *Note c++filt::, for more information on demangling.
|
||
|
||
`-e FILENAME'
|
||
`--exe=FILENAME'
|
||
Specify the name of the executable for which addresses should be
|
||
translated. The default file is `a.out'.
|
||
|
||
`-f'
|
||
`--functions'
|
||
Display function names as well as file and line number information.
|
||
|
||
`-s'
|
||
`--basenames'
|
||
Display only the base of each file name.
|
||
|
||
`-i'
|
||
`--inlines'
|
||
If the address belongs to a function that was inlined, the source
|
||
information for all enclosing scopes back to the first non-inlined
|
||
function will also be printed. For example, if `main' inlines
|
||
`callee1' which inlines `callee2', and address is from `callee2',
|
||
the source information for `callee1' and `main' will also be
|
||
printed.
|
||
|
||
`-j'
|
||
`--section'
|
||
Read offsets relative to the specified section instead of absolute
|
||
addresses.
|
||
|
||
`-p'
|
||
`--pretty-print'
|
||
Make the output more human friendly: each location are printed on
|
||
one line. If option `-i' is specified, lines for all enclosing
|
||
scopes are prefixed with `(inlined by)'.
|
||
|
||
`--xtensa-core=NAME'
|
||
Specify the name of an Xtensa processor core configuration to use.
|
||
The configuration information is taken from the entry for NAME in
|
||
the Xtensa core registry (see the `--xtensa-system' option). If
|
||
this option is not specified, the Xtensa core name is either the
|
||
value of the `XTENSA_CORE' environment variable or "default" if
|
||
that variable is not set.
|
||
|
||
`--xtensa-system=REGISTRY'
|
||
Specify a directory to be used as the Xtensa core registry. If
|
||
this option is not set, the `XTENSA_SYSTEM' environment variable
|
||
specifies the Xtensa registry, and if that is not set, the default
|
||
registry, `<xtensa_tools_root>/config', is used. Please see the
|
||
`Xtensa Software Development Toolkit User's Guide' for more
|
||
information about Xtensa core registries.
|
||
|
||
`--xtensa-params=PATH'
|
||
Specify the location of the parameter file in a TIE Development Kit
|
||
(TDK) that was produced by running the TIE Compiler (tc). If PATH
|
||
identifies a directory rather than a file, the parameters are read
|
||
from a file named `default-params' if it exists in that directory.
|
||
The parameter file may also be specified by setting the
|
||
`XTENSA_PARAMS' environment variable. The `--xtensa-params'
|
||
option takes precedence over the environment variable. See the
|
||
`Tensilica Instruction Extension (TIE) Language User's Guide' for
|
||
more information.
|
||
|
||
|
||
File: binutils.info, Node: readelf, Next: size, Prev: ranlib, Up: Top
|
||
|
||
11 readelf
|
||
**********
|
||
|
||
xt-readelf [`-a'|`--all']
|
||
[`-h'|`--file-header']
|
||
[`-l'|`--program-headers'|`--segments']
|
||
[`-S'|`--section-headers'|`--sections']
|
||
[`-g'|`--section-groups']
|
||
[`-t'|`--section-details']
|
||
[`-e'|`--headers']
|
||
[`-s'|`--syms'|`--symbols']
|
||
[`--dyn-syms']
|
||
[`-n'|`--notes']
|
||
[`-r'|`--relocs']
|
||
[`-u'|`--unwind']
|
||
[`-d'|`--dynamic']
|
||
[`-V'|`--version-info']
|
||
[`-A'|`--arch-specific']
|
||
[`-D'|`--use-dynamic']
|
||
[`-x' <number or name>|`--hex-dump='<number or name>]
|
||
[`-p' <number or name>|`--string-dump='<number or name>]
|
||
[`-R' <number or name>|`--relocated-dump='<number or name>]
|
||
[`-c'|`--archive-index']
|
||
[`-w[lLiaprmfFsoRt]'|
|
||
`--debug-dump'[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]]
|
||
[`--dwarf-depth=N']
|
||
[`--dwarf-start=N']
|
||
[`-I'|`--histogram']
|
||
[`-v'|`--version']
|
||
[`-W'|`--wide']
|
||
[`-H'|`--help']
|
||
ELFFILE...
|
||
|
||
`readelf' displays information about one or more ELF format object
|
||
files. The options control what particular information to display.
|
||
|
||
ELFFILE... are the object files to be examined. 32-bit and 64-bit
|
||
ELF files are supported, as are archives containing ELF files.
|
||
|
||
This program performs a similar function to `objdump' but it goes
|
||
into more detail and it exists independently of the BFD library, so if
|
||
there is a bug in BFD then readelf will not be affected.
|
||
|
||
The long and short forms of options, shown here as alternatives, are
|
||
equivalent. At least one option besides `-v' or `-H' must be given.
|
||
|
||
`-a'
|
||
`--all'
|
||
Equivalent to specifying `--file-header', `--program-headers',
|
||
`--sections', `--symbols', `--relocs', `--dynamic', `--notes' and
|
||
`--version-info'.
|
||
|
||
`-h'
|
||
`--file-header'
|
||
Displays the information contained in the ELF header at the start
|
||
of the file.
|
||
|
||
`-l'
|
||
`--program-headers'
|
||
`--segments'
|
||
Displays the information contained in the file's segment headers,
|
||
if it has any.
|
||
|
||
`-S'
|
||
`--sections'
|
||
`--section-headers'
|
||
Displays the information contained in the file's section headers,
|
||
if it has any.
|
||
|
||
`-g'
|
||
`--section-groups'
|
||
Displays the information contained in the file's section groups,
|
||
if it has any.
|
||
|
||
`-t'
|
||
`--section-details'
|
||
Displays the detailed section information. Implies `-S'.
|
||
|
||
`-s'
|
||
`--symbols'
|
||
`--syms'
|
||
Displays the entries in symbol table section of the file, if it
|
||
has one.
|
||
|
||
`--dyn-syms'
|
||
Displays the entries in dynamic symbol table section of the file,
|
||
if it has one.
|
||
|
||
`-e'
|
||
`--headers'
|
||
Display all the headers in the file. Equivalent to `-h -l -S'.
|
||
|
||
`-n'
|
||
`--notes'
|
||
Displays the contents of the NOTE segments and/or sections, if any.
|
||
|
||
`-r'
|
||
`--relocs'
|
||
Displays the contents of the file's relocation section, if it has
|
||
one.
|
||
|
||
`-u'
|
||
`--unwind'
|
||
Displays the contents of the file's unwind section, if it has one.
|
||
Only the unwind sections for IA64 ELF files, as well as ARM
|
||
unwind tables (`.ARM.exidx' / `.ARM.extab') are currently
|
||
supported.
|
||
|
||
`-d'
|
||
`--dynamic'
|
||
Displays the contents of the file's dynamic section, if it has one.
|
||
|
||
`-V'
|
||
`--version-info'
|
||
Displays the contents of the version sections in the file, it they
|
||
exist.
|
||
|
||
`-A'
|
||
`--arch-specific'
|
||
Displays architecture-specific information in the file, if there
|
||
is any.
|
||
|
||
`-D'
|
||
`--use-dynamic'
|
||
When displaying symbols, this option makes `readelf' use the
|
||
symbol hash tables in the file's dynamic section, rather than the
|
||
symbol table sections.
|
||
|
||
`-x <number or name>'
|
||
`--hex-dump=<number or name>'
|
||
Displays the contents of the indicated section as a hexadecimal
|
||
bytes. A number identifies a particular section by index in the
|
||
section table; any other string identifies all sections with that
|
||
name in the object file.
|
||
|
||
`-R <number or name>'
|
||
`--relocated-dump=<number or name>'
|
||
Displays the contents of the indicated section as a hexadecimal
|
||
bytes. A number identifies a particular section by index in the
|
||
section table; any other string identifies all sections with that
|
||
name in the object file. The contents of the section will be
|
||
relocated before they are displayed.
|
||
|
||
`-p <number or name>'
|
||
`--string-dump=<number or name>'
|
||
Displays the contents of the indicated section as printable
|
||
strings. A number identifies a particular section by index in the
|
||
section table; any other string identifies all sections with that
|
||
name in the object file.
|
||
|
||
`-c'
|
||
`--archive-index'
|
||
Displays the file symbol index infomation contained in the header
|
||
part of binary archives. Performs the same function as the `t'
|
||
command to `ar', but without using the BFD library. *Note ar::.
|
||
|
||
`-w[lLiaprmfFsoRt]'
|
||
`--debug-dump[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=trace_info,=trace_abbrev,=trace_aranges,=gdb_index]'
|
||
Displays the contents of the debug sections in the file, if any are
|
||
present. If one of the optional letters or words follows the
|
||
switch then only data found in those specific sections will be
|
||
dumped.
|
||
|
||
Note that there is no single letter option to display the content
|
||
of trace sections or .gdb_index.
|
||
|
||
Note: the `=decodedline' option will display the interpreted
|
||
contents of a .debug_line section whereas the `=rawline' option
|
||
dumps the contents in a raw format.
|
||
|
||
Note: the `=frames-interp' option will display the interpreted
|
||
contents of a .debug_frame section whereas the `=frames' option
|
||
dumps the contents in a raw format.
|
||
|
||
Note: the output from the `=info' option can also be affected by
|
||
the options `--dwarf-depth' and `--dwarf-start'.
|
||
|
||
`--dwarf-depth=N'
|
||
Limit the dump of the `.debug_info' section to N children. This
|
||
is only useful with `--debug-dump=info'. The default is to print
|
||
all DIEs; the special value 0 for N will also have this effect.
|
||
|
||
With a non-zero value for N, DIEs at or deeper than N levels will
|
||
not be printed. The range for N is zero-based.
|
||
|
||
`--dwarf-start=N'
|
||
Print only DIEs beginning with the DIE numbered N. This is only
|
||
useful with `--debug-dump=info'.
|
||
|
||
If specified, this option will suppress printing of any header
|
||
information and all DIEs before the DIE numbered N. Only siblings
|
||
and children of the specified DIE will be printed.
|
||
|
||
This can be used in conjunction with `--dwarf-depth'.
|
||
|
||
`-I'
|
||
`--histogram'
|
||
Display a histogram of bucket list lengths when displaying the
|
||
contents of the symbol tables.
|
||
|
||
`-v'
|
||
`--version'
|
||
Display the version number of readelf.
|
||
|
||
`-W'
|
||
`--wide'
|
||
Don't break output lines to fit into 80 columns. By default
|
||
`readelf' breaks section header and segment listing lines for
|
||
64-bit ELF files, so that they fit into 80 columns. This option
|
||
causes `readelf' to print each section header resp. each segment
|
||
one a single line, which is far more readable on terminals wider
|
||
than 80 columns.
|
||
|
||
`-H'
|
||
`--help'
|
||
Display the command line options understood by `readelf'.
|
||
|
||
|
||
|
||
File: binutils.info, Node: elfedit, Next: c++filt, Prev: strip, Up: Top
|
||
|
||
12 elfedit
|
||
**********
|
||
|
||
elfedit [`--input-mach='MACHINE]
|
||
[`--input-type='TYPE]
|
||
[`--input-osabi='OSABI]
|
||
`--output-mach='MACHINE
|
||
`--output-type='TYPE
|
||
`--output-osabi='OSABI
|
||
[`-v'|`--version']
|
||
[`-h'|`--help']
|
||
ELFFILE...
|
||
|
||
`elfedit' updates the ELF header of ELF files which have the
|
||
matching ELF machine and file types. The options control how and which
|
||
fields in the ELF header should be updated.
|
||
|
||
ELFFILE... are the ELF files to be updated. 32-bit and 64-bit ELF
|
||
files are supported, as are archives containing ELF files.
|
||
|
||
The long and short forms of options, shown here as alternatives, are
|
||
equivalent. At least one of the `--output-mach', `--output-type' and
|
||
`--output-osabi' options must be given.
|
||
|
||
`--input-mach=MACHINE'
|
||
Set the matching input ELF machine type to MACHINE. If
|
||
`--input-mach' isn't specified, it will match any ELF machine
|
||
types.
|
||
|
||
The supported ELF machine types are, L1OM, K1OM and X86-64.
|
||
|
||
`--output-mach=MACHINE'
|
||
Change the ELF machine type in the ELF header to MACHINE. The
|
||
supported ELF machine types are the same as `--input-mach'.
|
||
|
||
`--input-type=TYPE'
|
||
Set the matching input ELF file type to TYPE. If `--input-type'
|
||
isn't specified, it will match any ELF file types.
|
||
|
||
The supported ELF file types are, REL, EXEC and DYN.
|
||
|
||
`--output-type=TYPE'
|
||
Change the ELF file type in the ELF header to TYPE. The supported
|
||
ELF types are the same as `--input-type'.
|
||
|
||
`--input-osabi=OSABI'
|
||
Set the matching input ELF file OSABI to OSABI. If
|
||
`--input-osabi' isn't specified, it will match any ELF OSABIs.
|
||
|
||
The supported ELF OSABIs are, NONE, HPUX, NETBSD, GNU, LINUX
|
||
(alias for GNU), SOLARIS, AIX, IRIX, FREEBSD, TRU64, MODESTO,
|
||
OPENBSD, OPENVMS, NSK, AROS and FENIXOS.
|
||
|
||
`--output-osabi=OSABI'
|
||
Change the ELF OSABI in the ELF header to OSABI. The supported
|
||
ELF OSABI are the same as `--input-osabi'.
|
||
|
||
`-v'
|
||
`--version'
|
||
Display the version number of `elfedit'.
|
||
|
||
`-h'
|
||
`--help'
|
||
Display the command line options understood by `elfedit'.
|
||
|
||
|
||
|
||
File: binutils.info, Node: Common Options, Next: GNU Free Documentation License, Prev: addr2line, Up: Top
|
||
|
||
13 Common Options
|
||
*****************
|
||
|
||
The following command-line options are supported by all of the programs
|
||
described in this manual.
|
||
|
||
`@FILE'
|
||
Read command-line options from FILE. The options read are
|
||
inserted in place of the original @FILE option. If FILE does not
|
||
exist, or cannot be read, then the option will be treated
|
||
literally, and not removed.
|
||
|
||
Options in FILE are separated by whitespace. A whitespace
|
||
character may be included in an option by surrounding the entire
|
||
option in either single or double quotes. Any character
|
||
(including a backslash) may be included by prefixing the character
|
||
to be included with a backslash. The FILE may itself contain
|
||
additional @FILE options; any such options will be processed
|
||
recursively.
|
||
|
||
`--help'
|
||
Display the command-line options supported by the program.
|
||
|
||
`--version'
|
||
Display the version number of the program.
|
||
|
||
|
||
* Menu:
|
||
|
||
* Target Selection::
|
||
* Architecture Selection::
|
||
|
||
|
||
File: binutils.info, Node: Target Selection, Next: Architecture Selection, Up: Common Options
|
||
|
||
13.1 Target Selection
|
||
=====================
|
||
|
||
A "target" is an object file format. A given target may be supported
|
||
for multiple architectures (*note Architecture Selection::). A target
|
||
selection may also have variations for different operating systems or
|
||
architectures.
|
||
|
||
The command to list valid target values is `xt-objdump -i' (the
|
||
first column of output contains the relevant information).
|
||
|
||
`objdump' Target
|
||
----------------
|
||
|
||
Ways to specify:
|
||
|
||
1. command line option: `-b' or `--target'
|
||
|
||
2. environment variable `GNUTARGET'
|
||
|
||
3. deduced from the input file
|
||
|
||
`objcopy' and `strip' Input Target
|
||
----------------------------------
|
||
|
||
Ways to specify:
|
||
|
||
1. command line options: `-I' or `--input-target', or `-F' or
|
||
`--target'
|
||
|
||
2. environment variable `GNUTARGET'
|
||
|
||
3. deduced from the input file
|
||
|
||
`objcopy' and `strip' Output Target
|
||
-----------------------------------
|
||
|
||
Ways to specify:
|
||
|
||
1. command line options: `-O' or `--output-target', or `-F' or
|
||
`--target'
|
||
|
||
2. the input target (see "`objcopy' and `strip' Input Target" above)
|
||
|
||
3. environment variable `GNUTARGET'
|
||
|
||
4. deduced from the input file
|
||
|
||
`nm', `size', and `strings' Target
|
||
----------------------------------
|
||
|
||
Ways to specify:
|
||
|
||
1. command line option: `--target'
|
||
|
||
2. environment variable `GNUTARGET'
|
||
|
||
3. deduced from the input file
|
||
|
||
|
||
File: binutils.info, Node: Architecture Selection, Prev: Target Selection, Up: Common Options
|
||
|
||
13.2 Architecture Selection
|
||
===========================
|
||
|
||
An "architecture" is a type of CPU on which an object file is to run.
|
||
Its name may contain a colon, separating the name of the processor
|
||
family from the name of the particular CPU.
|
||
|
||
The command to list valid architecture values is `xt-objdump -i' (the
|
||
second column contains the relevant information).
|
||
|
||
`objdump' Architecture
|
||
----------------------
|
||
|
||
Ways to specify:
|
||
|
||
1. command line option: `-m' or `--architecture'
|
||
|
||
2. deduced from the input file
|
||
|
||
`objcopy', `nm', `size', `strings' Architecture
|
||
-----------------------------------------------
|
||
|
||
Ways to specify:
|
||
|
||
1. deduced from the input file
|
||
|
||
|
||
File: binutils.info, Node: GNU Free Documentation License, Next: History, Prev: Common Options, Up: Top
|
||
|
||
Appendix A GNU Free Documentation License
|
||
*****************************************
|
||
|
||
Version 1.3, 3 November 2008
|
||
|
||
Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
|
||
`http://fsf.org/'
|
||
|
||
Everyone is permitted to copy and distribute verbatim copies
|
||
of this license document, but changing it is not allowed.
|
||
|
||
0. PREAMBLE
|
||
|
||
The purpose of this License is to make a manual, textbook, or other
|
||
functional and useful document "free" in the sense of freedom: to
|
||
assure everyone the effective freedom to copy and redistribute it,
|
||
with or without modifying it, either commercially or
|
||
noncommercially. Secondarily, this License preserves for the
|
||
author and publisher a way to get credit for their work, while not
|
||
being considered responsible for modifications made by others.
|
||
|
||
This License is a kind of "copyleft", which means that derivative
|
||
works of the document must themselves be free in the same sense.
|
||
It complements the GNU General Public License, which is a copyleft
|
||
license designed for free software.
|
||
|
||
We have designed this License in order to use it for manuals for
|
||
free software, because free software needs free documentation: a
|
||
free program should come with manuals providing the same freedoms
|
||
that the software does. But this License is not limited to
|
||
software manuals; it can be used for any textual work, regardless
|
||
of subject matter or whether it is published as a printed book.
|
||
We recommend this License principally for works whose purpose is
|
||
instruction or reference.
|
||
|
||
1. APPLICABILITY AND DEFINITIONS
|
||
|
||
This License applies to any manual or other work, in any medium,
|
||
that contains a notice placed by the copyright holder saying it
|
||
can be distributed under the terms of this License. Such a notice
|
||
grants a world-wide, royalty-free license, unlimited in duration,
|
||
to use that work under the conditions stated herein. The
|
||
"Document", below, refers to any such manual or work. Any member
|
||
of the public is a licensee, and is addressed as "you". You
|
||
accept the license if you copy, modify or distribute the work in a
|
||
way requiring permission under copyright law.
|
||
|
||
A "Modified Version" of the Document means any work containing the
|
||
Document or a portion of it, either copied verbatim, or with
|
||
modifications and/or translated into another language.
|
||
|
||
A "Secondary Section" is a named appendix or a front-matter section
|
||
of the Document that deals exclusively with the relationship of the
|
||
publishers or authors of the Document to the Document's overall
|
||
subject (or to related matters) and contains nothing that could
|
||
fall directly within that overall subject. (Thus, if the Document
|
||
is in part a textbook of mathematics, a Secondary Section may not
|
||
explain any mathematics.) The relationship could be a matter of
|
||
historical connection with the subject or with related matters, or
|
||
of legal, commercial, philosophical, ethical or political position
|
||
regarding them.
|
||
|
||
The "Invariant Sections" are certain Secondary Sections whose
|
||
titles are designated, as being those of Invariant Sections, in
|
||
the notice that says that the Document is released under this
|
||
License. If a section does not fit the above definition of
|
||
Secondary then it is not allowed to be designated as Invariant.
|
||
The Document may contain zero Invariant Sections. If the Document
|
||
does not identify any Invariant Sections then there are none.
|
||
|
||
The "Cover Texts" are certain short passages of text that are
|
||
listed, as Front-Cover Texts or Back-Cover Texts, in the notice
|
||
that says that the Document is released under this License. A
|
||
Front-Cover Text may be at most 5 words, and a Back-Cover Text may
|
||
be at most 25 words.
|
||
|
||
A "Transparent" copy of the Document means a machine-readable copy,
|
||
represented in a format whose specification is available to the
|
||
general public, that is suitable for revising the document
|
||
straightforwardly with generic text editors or (for images
|
||
composed of pixels) generic paint programs or (for drawings) some
|
||
widely available drawing editor, and that is suitable for input to
|
||
text formatters or for automatic translation to a variety of
|
||
formats suitable for input to text formatters. A copy made in an
|
||
otherwise Transparent file format whose markup, or absence of
|
||
markup, has been arranged to thwart or discourage subsequent
|
||
modification by readers is not Transparent. An image format is
|
||
not Transparent if used for any substantial amount of text. A
|
||
copy that is not "Transparent" is called "Opaque".
|
||
|
||
Examples of suitable formats for Transparent copies include plain
|
||
ASCII without markup, Texinfo input format, LaTeX input format,
|
||
SGML or XML using a publicly available DTD, and
|
||
standard-conforming simple HTML, PostScript or PDF designed for
|
||
human modification. Examples of transparent image formats include
|
||
PNG, XCF and JPG. Opaque formats include proprietary formats that
|
||
can be read and edited only by proprietary word processors, SGML or
|
||
XML for which the DTD and/or processing tools are not generally
|
||
available, and the machine-generated HTML, PostScript or PDF
|
||
produced by some word processors for output purposes only.
|
||
|
||
The "Title Page" means, for a printed book, the title page itself,
|
||
plus such following pages as are needed to hold, legibly, the
|
||
material this License requires to appear in the title page. For
|
||
works in formats which do not have any title page as such, "Title
|
||
Page" means the text near the most prominent appearance of the
|
||
work's title, preceding the beginning of the body of the text.
|
||
|
||
The "publisher" means any person or entity that distributes copies
|
||
of the Document to the public.
|
||
|
||
A section "Entitled XYZ" means a named subunit of the Document
|
||
whose title either is precisely XYZ or contains XYZ in parentheses
|
||
following text that translates XYZ in another language. (Here XYZ
|
||
stands for a specific section name mentioned below, such as
|
||
"Acknowledgements", "Dedications", "Endorsements", or "History".)
|
||
To "Preserve the Title" of such a section when you modify the
|
||
Document means that it remains a section "Entitled XYZ" according
|
||
to this definition.
|
||
|
||
The Document may include Warranty Disclaimers next to the notice
|
||
which states that this License applies to the Document. These
|
||
Warranty Disclaimers are considered to be included by reference in
|
||
this License, but only as regards disclaiming warranties: any other
|
||
implication that these Warranty Disclaimers may have is void and
|
||
has no effect on the meaning of this License.
|
||
|
||
2. VERBATIM COPYING
|
||
|
||
You may copy and distribute the Document in any medium, either
|
||
commercially or noncommercially, provided that this License, the
|
||
copyright notices, and the license notice saying this License
|
||
applies to the Document are reproduced in all copies, and that you
|
||
add no other conditions whatsoever to those of this License. You
|
||
may not use technical measures to obstruct or control the reading
|
||
or further copying of the copies you make or distribute. However,
|
||
you may accept compensation in exchange for copies. If you
|
||
distribute a large enough number of copies you must also follow
|
||
the conditions in section 3.
|
||
|
||
You may also lend copies, under the same conditions stated above,
|
||
and you may publicly display copies.
|
||
|
||
3. COPYING IN QUANTITY
|
||
|
||
If you publish printed copies (or copies in media that commonly
|
||
have printed covers) of the Document, numbering more than 100, and
|
||
the Document's license notice requires Cover Texts, you must
|
||
enclose the copies in covers that carry, clearly and legibly, all
|
||
these Cover Texts: Front-Cover Texts on the front cover, and
|
||
Back-Cover Texts on the back cover. Both covers must also clearly
|
||
and legibly identify you as the publisher of these copies. The
|
||
front cover must present the full title with all words of the
|
||
title equally prominent and visible. You may add other material
|
||
on the covers in addition. Copying with changes limited to the
|
||
covers, as long as they preserve the title of the Document and
|
||
satisfy these conditions, can be treated as verbatim copying in
|
||
other respects.
|
||
|
||
If the required texts for either cover are too voluminous to fit
|
||
legibly, you should put the first ones listed (as many as fit
|
||
reasonably) on the actual cover, and continue the rest onto
|
||
adjacent pages.
|
||
|
||
If you publish or distribute Opaque copies of the Document
|
||
numbering more than 100, you must either include a
|
||
machine-readable Transparent copy along with each Opaque copy, or
|
||
state in or with each Opaque copy a computer-network location from
|
||
which the general network-using public has access to download
|
||
using public-standard network protocols a complete Transparent
|
||
copy of the Document, free of added material. If you use the
|
||
latter option, you must take reasonably prudent steps, when you
|
||
begin distribution of Opaque copies in quantity, to ensure that
|
||
this Transparent copy will remain thus accessible at the stated
|
||
location until at least one year after the last time you
|
||
distribute an Opaque copy (directly or through your agents or
|
||
retailers) of that edition to the public.
|
||
|
||
It is requested, but not required, that you contact the authors of
|
||
the Document well before redistributing any large number of
|
||
copies, to give them a chance to provide you with an updated
|
||
version of the Document.
|
||
|
||
4. MODIFICATIONS
|
||
|
||
You may copy and distribute a Modified Version of the Document
|
||
under the conditions of sections 2 and 3 above, provided that you
|
||
release the Modified Version under precisely this License, with
|
||
the Modified Version filling the role of the Document, thus
|
||
licensing distribution and modification of the Modified Version to
|
||
whoever possesses a copy of it. In addition, you must do these
|
||
things in the Modified Version:
|
||
|
||
A. Use in the Title Page (and on the covers, if any) a title
|
||
distinct from that of the Document, and from those of
|
||
previous versions (which should, if there were any, be listed
|
||
in the History section of the Document). You may use the
|
||
same title as a previous version if the original publisher of
|
||
that version gives permission.
|
||
|
||
B. List on the Title Page, as authors, one or more persons or
|
||
entities responsible for authorship of the modifications in
|
||
the Modified Version, together with at least five of the
|
||
principal authors of the Document (all of its principal
|
||
authors, if it has fewer than five), unless they release you
|
||
from this requirement.
|
||
|
||
C. State on the Title page the name of the publisher of the
|
||
Modified Version, as the publisher.
|
||
|
||
D. Preserve all the copyright notices of the Document.
|
||
|
||
E. Add an appropriate copyright notice for your modifications
|
||
adjacent to the other copyright notices.
|
||
|
||
F. Include, immediately after the copyright notices, a license
|
||
notice giving the public permission to use the Modified
|
||
Version under the terms of this License, in the form shown in
|
||
the Addendum below.
|
||
|
||
G. Preserve in that license notice the full lists of Invariant
|
||
Sections and required Cover Texts given in the Document's
|
||
license notice.
|
||
|
||
H. Include an unaltered copy of this License.
|
||
|
||
I. Preserve the section Entitled "History", Preserve its Title,
|
||
and add to it an item stating at least the title, year, new
|
||
authors, and publisher of the Modified Version as given on
|
||
the Title Page. If there is no section Entitled "History" in
|
||
the Document, create one stating the title, year, authors,
|
||
and publisher of the Document as given on its Title Page,
|
||
then add an item describing the Modified Version as stated in
|
||
the previous sentence.
|
||
|
||
J. Preserve the network location, if any, given in the Document
|
||
for public access to a Transparent copy of the Document, and
|
||
likewise the network locations given in the Document for
|
||
previous versions it was based on. These may be placed in
|
||
the "History" section. You may omit a network location for a
|
||
work that was published at least four years before the
|
||
Document itself, or if the original publisher of the version
|
||
it refers to gives permission.
|
||
|
||
K. For any section Entitled "Acknowledgements" or "Dedications",
|
||
Preserve the Title of the section, and preserve in the
|
||
section all the substance and tone of each of the contributor
|
||
acknowledgements and/or dedications given therein.
|
||
|
||
L. Preserve all the Invariant Sections of the Document,
|
||
unaltered in their text and in their titles. Section numbers
|
||
or the equivalent are not considered part of the section
|
||
titles.
|
||
|
||
M. Delete any section Entitled "Endorsements". Such a section
|
||
may not be included in the Modified Version.
|
||
|
||
N. Do not retitle any existing section to be Entitled
|
||
"Endorsements" or to conflict in title with any Invariant
|
||
Section.
|
||
|
||
O. Preserve any Warranty Disclaimers.
|
||
|
||
If the Modified Version includes new front-matter sections or
|
||
appendices that qualify as Secondary Sections and contain no
|
||
material copied from the Document, you may at your option
|
||
designate some or all of these sections as invariant. To do this,
|
||
add their titles to the list of Invariant Sections in the Modified
|
||
Version's license notice. These titles must be distinct from any
|
||
other section titles.
|
||
|
||
You may add a section Entitled "Endorsements", provided it contains
|
||
nothing but endorsements of your Modified Version by various
|
||
parties--for example, statements of peer review or that the text
|
||
has been approved by an organization as the authoritative
|
||
definition of a standard.
|
||
|
||
You may add a passage of up to five words as a Front-Cover Text,
|
||
and a passage of up to 25 words as a Back-Cover Text, to the end
|
||
of the list of Cover Texts in the Modified Version. Only one
|
||
passage of Front-Cover Text and one of Back-Cover Text may be
|
||
added by (or through arrangements made by) any one entity. If the
|
||
Document already includes a cover text for the same cover,
|
||
previously added by you or by arrangement made by the same entity
|
||
you are acting on behalf of, you may not add another; but you may
|
||
replace the old one, on explicit permission from the previous
|
||
publisher that added the old one.
|
||
|
||
The author(s) and publisher(s) of the Document do not by this
|
||
License give permission to use their names for publicity for or to
|
||
assert or imply endorsement of any Modified Version.
|
||
|
||
5. COMBINING DOCUMENTS
|
||
|
||
You may combine the Document with other documents released under
|
||
this License, under the terms defined in section 4 above for
|
||
modified versions, provided that you include in the combination
|
||
all of the Invariant Sections of all of the original documents,
|
||
unmodified, and list them all as Invariant Sections of your
|
||
combined work in its license notice, and that you preserve all
|
||
their Warranty Disclaimers.
|
||
|
||
The combined work need only contain one copy of this License, and
|
||
multiple identical Invariant Sections may be replaced with a single
|
||
copy. If there are multiple Invariant Sections with the same name
|
||
but different contents, make the title of each such section unique
|
||
by adding at the end of it, in parentheses, the name of the
|
||
original author or publisher of that section if known, or else a
|
||
unique number. Make the same adjustment to the section titles in
|
||
the list of Invariant Sections in the license notice of the
|
||
combined work.
|
||
|
||
In the combination, you must combine any sections Entitled
|
||
"History" in the various original documents, forming one section
|
||
Entitled "History"; likewise combine any sections Entitled
|
||
"Acknowledgements", and any sections Entitled "Dedications". You
|
||
must delete all sections Entitled "Endorsements."
|
||
|
||
6. COLLECTIONS OF DOCUMENTS
|
||
|
||
You may make a collection consisting of the Document and other
|
||
documents released under this License, and replace the individual
|
||
copies of this License in the various documents with a single copy
|
||
that is included in the collection, provided that you follow the
|
||
rules of this License for verbatim copying of each of the
|
||
documents in all other respects.
|
||
|
||
You may extract a single document from such a collection, and
|
||
distribute it individually under this License, provided you insert
|
||
a copy of this License into the extracted document, and follow
|
||
this License in all other respects regarding verbatim copying of
|
||
that document.
|
||
|
||
7. AGGREGATION WITH INDEPENDENT WORKS
|
||
|
||
A compilation of the Document or its derivatives with other
|
||
separate and independent documents or works, in or on a volume of
|
||
a storage or distribution medium, is called an "aggregate" if the
|
||
copyright resulting from the compilation is not used to limit the
|
||
legal rights of the compilation's users beyond what the individual
|
||
works permit. When the Document is included in an aggregate, this
|
||
License does not apply to the other works in the aggregate which
|
||
are not themselves derivative works of the Document.
|
||
|
||
If the Cover Text requirement of section 3 is applicable to these
|
||
copies of the Document, then if the Document is less than one half
|
||
of the entire aggregate, the Document's Cover Texts may be placed
|
||
on covers that bracket the Document within the aggregate, or the
|
||
electronic equivalent of covers if the Document is in electronic
|
||
form. Otherwise they must appear on printed covers that bracket
|
||
the whole aggregate.
|
||
|
||
8. TRANSLATION
|
||
|
||
Translation is considered a kind of modification, so you may
|
||
distribute translations of the Document under the terms of section
|
||
4. Replacing Invariant Sections with translations requires special
|
||
permission from their copyright holders, but you may include
|
||
translations of some or all Invariant Sections in addition to the
|
||
original versions of these Invariant Sections. You may include a
|
||
translation of this License, and all the license notices in the
|
||
Document, and any Warranty Disclaimers, provided that you also
|
||
include the original English version of this License and the
|
||
original versions of those notices and disclaimers. In case of a
|
||
disagreement between the translation and the original version of
|
||
this License or a notice or disclaimer, the original version will
|
||
prevail.
|
||
|
||
If a section in the Document is Entitled "Acknowledgements",
|
||
"Dedications", or "History", the requirement (section 4) to
|
||
Preserve its Title (section 1) will typically require changing the
|
||
actual title.
|
||
|
||
9. TERMINATION
|
||
|
||
You may not copy, modify, sublicense, or distribute the Document
|
||
except as expressly provided under this License. Any attempt
|
||
otherwise to copy, modify, sublicense, or distribute it is void,
|
||
and will automatically terminate your rights under this License.
|
||
|
||
However, if you cease all violation of this License, then your
|
||
license from a particular copyright holder is reinstated (a)
|
||
provisionally, unless and until the copyright holder explicitly
|
||
and finally terminates your license, and (b) permanently, if the
|
||
copyright holder fails to notify you of the violation by some
|
||
reasonable means prior to 60 days after the cessation.
|
||
|
||
Moreover, your license from a particular copyright holder is
|
||
reinstated permanently if the copyright holder notifies you of the
|
||
violation by some reasonable means, this is the first time you have
|
||
received notice of violation of this License (for any work) from
|
||
that copyright holder, and you cure the violation prior to 30 days
|
||
after your receipt of the notice.
|
||
|
||
Termination of your rights under this section does not terminate
|
||
the licenses of parties who have received copies or rights from
|
||
you under this License. If your rights have been terminated and
|
||
not permanently reinstated, receipt of a copy of some or all of
|
||
the same material does not give you any rights to use it.
|
||
|
||
10. FUTURE REVISIONS OF THIS LICENSE
|
||
|
||
The Free Software Foundation may publish new, revised versions of
|
||
the GNU Free Documentation License from time to time. Such new
|
||
versions will be similar in spirit to the present version, but may
|
||
differ in detail to address new problems or concerns. See
|
||
`http://www.gnu.org/copyleft/'.
|
||
|
||
Each version of the License is given a distinguishing version
|
||
number. If the Document specifies that a particular numbered
|
||
version of this License "or any later version" applies to it, you
|
||
have the option of following the terms and conditions either of
|
||
that specified version or of any later version that has been
|
||
published (not as a draft) by the Free Software Foundation. If
|
||
the Document does not specify a version number of this License,
|
||
you may choose any version ever published (not as a draft) by the
|
||
Free Software Foundation. If the Document specifies that a proxy
|
||
can decide which future versions of this License can be used, that
|
||
proxy's public statement of acceptance of a version permanently
|
||
authorizes you to choose that version for the Document.
|
||
|
||
11. RELICENSING
|
||
|
||
"Massive Multiauthor Collaboration Site" (or "MMC Site") means any
|
||
World Wide Web server that publishes copyrightable works and also
|
||
provides prominent facilities for anybody to edit those works. A
|
||
public wiki that anybody can edit is an example of such a server.
|
||
A "Massive Multiauthor Collaboration" (or "MMC") contained in the
|
||
site means any set of copyrightable works thus published on the MMC
|
||
site.
|
||
|
||
"CC-BY-SA" means the Creative Commons Attribution-Share Alike 3.0
|
||
license published by Creative Commons Corporation, a not-for-profit
|
||
corporation with a principal place of business in San Francisco,
|
||
California, as well as future copyleft versions of that license
|
||
published by that same organization.
|
||
|
||
"Incorporate" means to publish or republish a Document, in whole or
|
||
in part, as part of another Document.
|
||
|
||
An MMC is "eligible for relicensing" if it is licensed under this
|
||
License, and if all works that were first published under this
|
||
License somewhere other than this MMC, and subsequently
|
||
incorporated in whole or in part into the MMC, (1) had no cover
|
||
texts or invariant sections, and (2) were thus incorporated prior
|
||
to November 1, 2008.
|
||
|
||
The operator of an MMC Site may republish an MMC contained in the
|
||
site under CC-BY-SA on the same site at any time before August 1,
|
||
2009, provided the MMC is eligible for relicensing.
|
||
|
||
|
||
ADDENDUM: How to use this License for your documents
|
||
====================================================
|
||
|
||
To use this License in a document you have written, include a copy of
|
||
the License in the document and put the following copyright and license
|
||
notices just after the title page:
|
||
|
||
Copyright (C) YEAR YOUR NAME.
|
||
Permission is granted to copy, distribute and/or modify this document
|
||
under the terms of the GNU Free Documentation License, Version 1.3
|
||
or any later version published by the Free Software Foundation;
|
||
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
|
||
Texts. A copy of the license is included in the section entitled ``GNU
|
||
Free Documentation License''.
|
||
|
||
If you have Invariant Sections, Front-Cover Texts and Back-Cover
|
||
Texts, replace the "with...Texts." line with this:
|
||
|
||
with the Invariant Sections being LIST THEIR TITLES, with
|
||
the Front-Cover Texts being LIST, and with the Back-Cover Texts
|
||
being LIST.
|
||
|
||
If you have Invariant Sections without Cover Texts, or some other
|
||
combination of the three, merge those two alternatives to suit the
|
||
situation.
|
||
|
||
If your document contains nontrivial examples of program code, we
|
||
recommend releasing these examples in parallel under your choice of
|
||
free software license, such as the GNU General Public License, to
|
||
permit their use in free software.
|
||
|
||
|
||
File: binutils.info, Node: History, Next: Binutils Index, Prev: GNU Free Documentation License, Up: Top
|
||
|
||
Appendix B History
|
||
******************
|
||
|
||
The original version of this document, entitled "The GNU Binary
|
||
Utilities", was written by Roland H. Pesch, Jeffrey M. Osier, and
|
||
Cygnus Support. The version for binutils 2.18 was released in 2007 and
|
||
published by the Free Software Foundation.
|
||
|
||
Tensilica, Inc. changed the title to "GNU Binary Utilities User's
|
||
Guide" and modified the document to include features specific to Xtensa
|
||
processors. The revised document was published by Tensilica, Inc. on
|
||
the date shown in the inside cover page. The TeXinfo source files for
|
||
this modified document are available from
|
||
`http://www.tensilica.com/gnudocs'.
|
||
|
||
|
||
File: binutils.info, Node: Binutils Index, Prev: History, Up: Top
|
||
|
||
Index
|
||
*****
|
||
|
||
|