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authorKen Raeburn <raeburn@cygnus>1993-11-05 19:21:35 +0000
committerKen Raeburn <raeburn@cygnus>1993-11-05 19:21:35 +0000
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treebfdd54a7a69837ca4ccc483505d48f44a82c8c6d /binutils
parentea18081db683908756fef0844c2eb28afc63fa9c (diff)
downloadgdb-87ce76559ca2695bf38e760c0ec0ce412efd95aa.zip
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+This is Info file binutils.info, produced by Makeinfo-1.55 from the
+input file ./binutils.texi.
+
+START-INFO-DIR-ENTRY
+* Binutils:: The GNU binary utilities "ar", "ld", "objcopy",
+ "objdump", "nm", "size", "strings", "strip", and "ranlib".
+END-INFO-DIR-ENTRY
+
+ Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+
+ Permission is granted to make and distribute verbatim copies of this
+manual provided the copyright notice and this permission notice are
+preserved on all copies.
+
+ Permission is granted to copy and distribute modified versions of
+this manual under the conditions for verbatim copying, provided also
+that the entire resulting derived work is distributed under the terms
+of a permission notice identical to this one.
+
+ Permission is granted to copy and distribute translations of this
+manual into another language, under the above conditions for modified
+versions.
+
+
+File: binutils.info, Node: Top, Next: ar, Prev: (dir), Up: (dir)
+
+Introduction
+************
+
+ This brief manual contains preliminary documentation for the GNU
+binary utilities (collectively version 2.2):
+
+* Menu:
+
+* ar:: Create, modify, and extract from archives
+* ld:(ld)Overview. Combine object and archive files
+* nm:: List symbols from object files
+* objcopy:: Copy and translate object files
+* objdump:: Display information from object files
+* ranlib:: Generate index to archive contents
+* size:: List section sizes and total size
+* strings:: List printable strings from files
+* strip:: Discard symbols
+* c++filt:: Filter to demangle encoded C++ symbols
+* Index::
+
+
+File: binutils.info, Node: ar, Next: nm, Prev: Top, Up: Top
+
+ar
+**
+
+ ar [-]P[MOD [RELPOS]] ARCHIVE [MEMBER...]
+ ar -M [ <mri-script ]
+
+ 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 `nm -s' or `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' is designed to be compatible with two different facilities.
+You can control its activity using command-line options, like the
+different varieties of `ar' on Unix systems; or, if you specify the
+single command-line option `-M', you can control it with a script
+supplied via standard input, like the MRI "librarian" program.
+
+* Menu:
+
+* ar-cmdline:: Controlling `ar' on the command line
+* ar-scripts:: Controlling `ar' with a script
+
+
+File: binutils.info, Node: ar-cmdline, Next: ar-scripts, Prev: ar, Up: ar
+
+Controlling `ar' on the command line
+====================================
+
+ ar [-]P[MOD [RELPOS]] ARCHIVE [MEMBER...]
+
+ When you use `ar' in the Unix style, `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*; 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 `ar s' or `ranlib' explicitly to update the symbol table index.
+
+`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.
+
+`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'), `ar t b.a fie' lists only the first
+ instance; to see them all, you must ask for a complete listing--in
+ our example, `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.
+
+ 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.
+
+`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.
+
+`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.
+
+`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
+ `ar s' on an archive is equivalent to running `ranlib' on it.
+
+`u'
+ Normally, `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'.
+
+`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'.
+
+
+File: binutils.info, Node: ar-scripts, Prev: ar-cmdline, Up: ar
+
+Controlling `ar' with a script
+==============================
+
+ ar -M [ <SCRIPT ]
+
+ If you use the single command-line option `-M' with `ar', you can
+control its operation with a rudimentary command language. This form
+of `ar' operates interactively if standard input is coming directly
+from a terminal. During interactive use, `ar' prompts for input (the
+prompt is `AR >'), and continues executing even after errors. If you
+redirect standard input to a script file, no prompts are issued, and
+`ar' abandons execution (with a nonzero exit code) on any error.
+
+ The `ar' command language is *not* designed to be equivalent to the
+command-line options; in fact, it provides somewhat less control over
+archives. The only purpose of the command language is to ease the
+transition to GNU `ar' for developers who already have scripts written
+for the MRI "librarian" program.
+
+ The syntax for the `ar' command language is straightforward:
+ * commands are recognized in upper or lower case; for example, `LIST'
+ is the same as `list'. In the following descriptions, commands are
+ shown in upper case for clarity.
+
+ * a single command may appear on each line; it is the first word on
+ the line.
+
+ * empty lines are allowed, and have no effect.
+
+ * comments are allowed; text after either of the characters `*' or
+ `;' is ignored.
+
+ * Whenever you use a list of names as part of the argument to an `ar'
+ command, you can separate the individual names with either commas
+ or blanks. Commas are shown in the explanations below, for
+ clarity.
+
+ * `+' is used as a line continuation character; if `+' appears at
+ the end of a line, the text on the following line is considered
+ part of the current command.
+
+ Here are the commands you can use in `ar' scripts, or when using
+`ar' interactively. Three of them have special significance:
+
+ `OPEN' or `CREATE' specify a "current archive", which is a temporary
+file required for most of the other commands.
+
+ `SAVE' commits the changes so far specified by the script. Prior to
+`SAVE', commands affect only the temporary copy of the current archive.
+
+`ADDLIB ARCHIVE'
+`ADDLIB ARCHIVE (MODULE, MODULE, ... MODULE)'
+ Add all the contents of ARCHIVE (or, if specified, each named
+ MODULE from ARCHIVE) to the current archive.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`ADDMOD MEMBER, MEMBER, ... MEMBER'
+ Add each named MEMBER as a module in the current archive.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`CLEAR'
+ Discard the contents of the current archive, cancelling the effect
+ of any operations since the last `SAVE'. May be executed (with no
+ effect) even if no current archive is specified.
+
+`CREATE ARCHIVE'
+ Creates an archive, and makes it the current archive (required for
+ many other commands). The new archive is created with a temporary
+ name; it is not actually saved as ARCHIVE until you use `SAVE'.
+ You can overwrite existing archives; similarly, the contents of any
+ existing file named ARCHIVE will not be destroyed until `SAVE'.
+
+`DELETE MODULE, MODULE, ... MODULE'
+ Delete each listed MODULE from the current archive; equivalent to
+ `ar -d ARCHIVE MODULE ... MODULE'.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`DIRECTORY ARCHIVE (MODULE, ... MODULE)'
+`DIRECTORY ARCHIVE (MODULE, ... MODULE) OUTPUTFILE'
+ List each named MODULE present in ARCHIVE. The separate command
+ `VERBOSE' specifies the form of the output: when verbose output is
+ off, output is like that of `ar -t ARCHIVE MODULE...'. When
+ verbose output is on, the listing is like `ar -tv ARCHIVE
+ MODULE...'.
+
+ Output normally goes to the standard output stream; however, if you
+ specify OUTPUTFILE as a final argument, `ar' directs the output to
+ that file.
+
+`END'
+ Exit from `ar', with a `0' exit code to indicate successful
+ completion. This command does not save the output file; if you
+ have changed the current archive since the last `SAVE' command,
+ those changes are lost.
+
+`EXTRACT MODULE, MODULE, ... MODULE'
+ Extract each named MODULE from the current archive, writing them
+ into the current directory as separate files. Equivalent to `ar -x
+ ARCHIVE MODULE...'.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`LIST'
+ Display full contents of the current archive, in "verbose" style
+ regardless of the state of `VERBOSE'. The effect is like `ar tv
+ ARCHIVE'). (This single command is a GNU `ld' enhancement, rather
+ than present for MRI compatibility.)
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`OPEN ARCHIVE'
+ Opens an existing archive for use as the current archive (required
+ for many other commands). Any changes as the result of subsequent
+ commands will not actually affect ARCHIVE until you next use
+ `SAVE'.
+
+`REPLACE MODULE, MODULE, ... MODULE'
+ In the current archive, replace each existing MODULE (named in the
+ `REPLACE' arguments) from files in the current working directory.
+ To execute this command without errors, both the file, and the
+ module in the current archive, must exist.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+`VERBOSE'
+ Toggle an internal flag governing the output from `DIRECTORY'.
+ When the flag is on, `DIRECTORY' output matches output from `ar
+ -tv '....
+
+`SAVE'
+ Commit your changes to the current archive, and actually save it
+ as a file with the name specified in the last `CREATE' or `OPEN'
+ command.
+
+ Requires prior use of `OPEN' or `CREATE'.
+
+
+File: binutils.info, Node: nm, Next: objcopy, Prev: ar, Up: Top
+
+nm
+**
+
+ nm [ -a | --debug-syms ] [ -g | --extern-only ]
+ [ -B ] [ -C | --demangle ]
+ [ -s | --print-armap ] [ -A | -o | --print-file-name ]
+ [ -n | -v | --numeric-sort ] [ -p | --no-sort ]
+ [ -r | --reverse-sort ] [ -u | --undefined-only ]
+ [ -t RADIX | --radix=RADIX ] [ -P | --portability ]
+ [ --target=BFDNAME ] [ -f FORMAT | --format=FORMAT ]
+ [ -V | --version ] [ --help ] [ OBJFILE... ]
+
+ GNU `nm' lists the symbols from object files OBJFILE.... If no
+object files are listed as arguments, `nm' assumes `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 local; if uppercase, the symbol is global (external).
+
+ `A'
+ Absolute.
+
+ `B'
+ BSS (uninitialized data).
+
+ `C'
+ Common.
+
+ `D'
+ Initialized data.
+
+ `I'
+ Indirect reference.
+
+ `T'
+ Text (program code).
+
+ `U'
+ Undefined.
+
+ * 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
+ element) 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'
+ 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. *Note c++filt::, for more
+ information on demangling.
+
+`-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.
+
+`-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-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.
+
+`-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 objdump::, for information on listing available
+ formats.
+
+`-u'
+`--undefined-only'
+ Display only undefined symbols (those external to each object
+ file).
+
+`-V'
+`--version'
+ Show the version number of `nm' and exit.
+
+`--help'
+ Show a summary of the options to `nm' and exit.
+
+
+File: binutils.info, Node: objcopy, Next: objdump, Prev: nm, Up: Top
+
+objcopy
+*******
+
+ objcopy [ -F FORMAT | --format=FORMAT ]
+ [ -I FORMAT | --input-format=FORMAT ]
+ [ -O FORMAT | --output-format=FORMAT ]
+ [ -S | --strip-all ] [ -g | --strip-debug ]
+ [ -x | --discard-all ] [ -X | --discard-locals ]
+ [ -v | --verbose ] [ -V | --version ] [ --help ]
+ 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.
+
+ `objcopy' creates temporary files to do its translations and deletes
+them afterward. `objcopy' uses BFD to do all its translation work; it
+knows about all the formats BFD knows about, and thus is able to
+recognize most formats without being told explicitly. *Note BFD:
+(ld.info)BFD the GNU linker.
+
+`INFILE'
+`OUTFILE'
+ The source and output files respectively. If you do not specify
+ OUTFILE, `objcopy' creates a temporary file and destructively
+ renames the result with the name of the input file.
+
+`-I FORMAT'
+`--input-format=FORMAT'
+ Consider the source file's object format to be FORMAT, rather than
+ attempting to deduce it.
+
+`-O FORMAT'
+`--output-format=FORMAT'
+ Write the output file using the object format FORMAT.
+
+`-F FORMAT'
+`--format=FORMAT'
+ Use FORMAT as the object format for both the input and the output
+ file; i.e. simply transfer data from source to destination with no
+ translation.
+
+`-S'
+`--strip-all'
+ Do not copy relocation and symbol information from the source file.
+
+`-g'
+`--strip-debug'
+ Do not copy debugging symbols from the source file.
+
+`-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 `.'.)
+
+`-V'
+`--version'
+ Show the version number of `objcopy'.
+
+`-v'
+`--verbose'
+ Verbose output: list all object files modified. In the case of
+ archives, `objcopy -V' lists all members of the archive.
+
+`--help'
+ Show a summary of the options to `objcopy'.
+
+
+File: binutils.info, Node: objdump, Next: ranlib, Prev: objcopy, Up: Top
+
+objdump
+*******
+
+ objdump [ -a ] [ -b BFDNAME ] [ -d ] [ -f ]
+ [ -h | --header ] [ -i ] [ -j SECTION ] [ -l ]
+ [ -m MACHINE ] [ -r | --reloc ] [ -s ] [ --stabs ]
+ [ -t | --syms ] [ -x ] [ --version ] [ --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 besides `-l' must be given.
+
+`-a'
+ 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 `ar tv', `objdump -a' shows the
+ object file format of each archive member.
+
+`-b 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,
+ 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.
+
+`-d'
+ Disassemble. Display the assembler mnemonics for the machine
+ instructions from OBJFILE.
+
+`-f'
+ File header. Display summary information from the overall header
+ of each of the OBJFILE files.
+
+`-h'
+`--header'
+ Header. Display summary information from the section headers of
+ the object file.
+
+`--help'
+ Print a summary of the options to `objdump' and exit.
+
+`-i'
+ Display a list showing all architectures and object formats
+ available for specification with `-b' or `-m'.
+
+`-j NAME'
+ Display information only for section NAME.
+
+`-l'
+ Label the display (using debugging information) with the source
+ filename and line numbers corresponding to the object code shown.
+
+`-m MACHINE'
+ Specify that the object files OBJFILE are for architecture
+ MACHINE. You can list available architectures using the `-i'
+ option.
+
+`-r'
+`--reloc'
+ Relocation. Print the relocation entries of the file.
+
+`-s'
+ Display the full contents of any sections requested.
+
+`--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.
+
+`-t'
+`--syms'
+ Symbol Table. Print the symbol table entries of the file. This
+ is similar to the information provided by the `nm' program.
+
+`--version'
+ Print the version number of `objdump' and exit.
+
+`-x'
+ Display all available header information, including the symbol
+ table and relocation entries. Using `-x' is equivalent to
+ specifying all of `-a -f -h -r -t'.
+
+
+File: binutils.info, Node: ranlib, Next: size, Prev: objdump, Up: Top
+
+ranlib
+******
+
+ ranlib [-vV] 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 `nm -s' or `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
+`ranlib' is completely equivalent to executing `ar -s'. *Note ar::.
+
+`-v'
+`-V'
+ Show the version number of `ranlib'.
+
+
+File: binutils.info, Node: size, Next: strings, Prev: ranlib, Up: Top
+
+size
+****
+
+ size [ -A | -B | --format=COMPATIBILITY ]
+ [ --help ] [ -d | -o | -x | --radix=NUMBER ]
+ [ --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.
+
+ The command line options have the following meanings:
+
+`-A'
+`-B'
+`--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'). The default is the one-line format similar
+ to Berkeley's.
+
+ Here is an example of the Berkeley (default) format of output from
+ `size':
+ 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:
+
+ 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
+
+`--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'.
+
+`--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 objdump::, for information on listing
+ available formats.
+
+`-V'
+`--version'
+ Display the version number of `size'.
+
+
+File: binutils.info, Node: strings, Next: strip, Prev: size, Up: Top
+
+strings
+*******
+
+ strings [-afov] [-MIN-LEN] [-n MIN-LEN] [-t RADIX] [-]
+ [--all] [--print-file-name] [--bytes=MIN-LEN]
+ [--radix=RADIX] [--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 a NUL or newline character. By
+default, it only prints the strings from the initialized data 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 data section 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.
+
+`-v'
+`--version'
+ Print the program version number on the standard output and exit.
+
+
+File: binutils.info, Node: strip, Next: c++filt, Prev: strings, Up: Top
+
+strip
+*****
+
+ strip [ -F FORMAT | --format=FORMAT | --target=FORMAT ]
+ [ -I FORMAT | --input-format=FORMAT ]
+ [ -O FORMAT | --output-format=FORMAT ]
+ [ -s | --strip-all ] [ -S | -g | --strip-debug ]
+ [ -x | --discard-all ] [ -X | --discard-locals ]
+ [ -v | --verbose ] [ -V | --version ] [ --help ]
+ 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 FORMAT'
+`--format=FORMAT'
+`--target=FORMAT'
+ Treat the original OBJFILE as a file with the object code format
+ FORMAT, and rewrite it in the same format.
+
+`--help'
+ Show a summary of the options to `strip' and exit.
+
+`-I FORMAT'
+`--input-format=FORMAT'
+ Treat the original OBJFILE as a file with the object code format
+ FORMAT.
+
+`-O FORMAT'
+`--output-format=FORMAT'
+ Replace OBJFILE with a file in the output format FORMAT.
+
+`-s'
+`--strip-all'
+ Remove all symbols.
+
+`-g'
+`-S'
+`--strip-debug'
+ Remove debugging symbols only.
+
+`-x'
+`--discard-all'
+ Remove non-global symbols.
+
+`-X'
+`--discard-locals'
+ Remove compiler-generated local symbols. (These usually start
+ with `L' or `.'.)
+
+`-V'
+`--version'
+ Show the version number for `strip'.
+
+`-v'
+`--verbose'
+ Verbose output: list all object files modified. In the case of
+ archives, `strip -v' lists all members of the archive.
+
+
+File: binutils.info, Node: c++filt, Next: Index, Prev: strip, Up: Top
+
+c++filt
+*******
+
+ c++filt [ -_ | --strip-underscores ]
+ [ -s FORMAT | --format=FORMAT ]
+ [ --help ] [ --version ] [ SYMBOL... ]
+
+ The C++ language provides function overloading, which means that you
+can write many functions with the same name (providing each takes
+parameters of different types). All C++ function names are encoded
+into a low-level assembly label (this process is known as "mangling").
+The `c++filt' program does the inverse mapping: it decodes
+("demangles") low-level names into user-level names so that the linker
+can keep these overloaded functions from clashing.
+
+ Every alphanumeric word (consisting of letters, digits, underscores,
+dollars, or periods) seen in the input is a potential label. If the
+label decodes into a C++ name, the C++ name replaces the low-level name
+in the output.
+
+ You can use `c++filt' to decipher individual symbols:
+
+ c++filt SYMBOL
+
+ If no SYMBOL arguments are given, `c++filt' reads symbol names from
+the standard input and writes the demangled names to the standard
+output. All results are printed on the standard output.
+
+`-_'
+`--strip-underscores'
+ 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.
+
+`-s FORMAT'
+`--format=FORMAT'
+ GNU `nm' can decode three different methods of mangling, used by
+ different C++ compilers. The argument to this option selects which
+ method it uses:
+
+ `gnu'
+ the one used by the GNU compiler (the default method)
+
+ `lucid'
+ the one used by the Lucid compiler
+
+ `arm'
+ the one specified by the C++ Annotated Reference Manual
+
+`--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 the future to decode
+ a name passed as an argument on the command line; in other words,
+
+ c++filt SYMBOL
+
+ may in a future release become
+
+ c++filt OPTION SYMBOL
+
+
+File: binutils.info, Node: Index, Prev: c++filt, Up: Top
+
+Index
+*****
+
+* Menu:
+
+* .stab: objdump.
+* ar compatibility: ar.
+* nm compatibility: nm.
+* nm compatibility: nm.
+* nm format: nm.
+* nm format: nm.
+* size display format: size.
+* size number format: size.
+* all header information, object file: objdump.
+* ar: ar.
+* architecture: objdump.
+* architectures available: objdump.
+* archive contents: ranlib.
+* archive headers: objdump.
+* archives: ar.
+* c++filt: c++filt.
+* collections of files: ar.
+* compatibility, ar: ar.
+* contents of archive: ar-cmdline.
+* creating archives: ar-cmdline.
+* dates in archive: ar-cmdline.
+* debug symbols: objdump.
+* debugging symbols: nm.
+* deleting from archive: ar-cmdline.
+* demangling C++ symbols: c++filt.
+* demangling C++ symbols: nm.
+* disassembling object code: objdump.
+* discarding symbols: strip.
+* ELF object file format: objdump.
+* external symbols: nm.
+* external symbols: nm.
+* extract from archive: ar-cmdline.
+* file name: nm.
+* header information, all: objdump.
+* input file name: nm.
+* libraries: ar.
+* listings strings: strings.
+* machine instructions: objdump.
+* moving in archive: ar-cmdline.
+* MRI compatibility, ar: ar-scripts.
+* name duplication in archive: ar-cmdline.
+* name length: ar.
+* nm: nm.
+* objdump: objdump.
+* object code format: nm.
+* object code format: objdump.
+* object code format: size.
+* object file header: objdump.
+* object file information: objdump.
+* object file sections: objdump.
+* object formats available: objdump.
+* operations on archive: ar-cmdline.
+* printing from archive: ar-cmdline.
+* printing strings: strings.
+* quick append to archive: ar-cmdline.
+* radix for section sizes: size.
+* ranlib: ranlib.
+* relative placement in archive: ar-cmdline.
+* relocation entries, in object file: objdump.
+* removing symbols: strip.
+* repeated names in archive: ar-cmdline.
+* replacement in archive: ar-cmdline.
+* scripts, ar: ar-scripts.
+* section headers: objdump.
+* section information: objdump.
+* section sizes: size.
+* sections, full contents: objdump.
+* size: size.
+* sorting symbols: nm.
+* source file name: nm.
+* source filenames for object files: objdump.
+* stab: objdump.
+* strings: strings.
+* strings, printing: strings.
+* strip: strip.
+* symbol index: ranlib.
+* symbol index: ar.
+* symbol index, listing: nm.
+* symbol table entries, printing: objdump.
+* symbols: nm.
+* symbols, discarding: strip.
+* undefined symbols: nm.
+* Unix compatibility, ar: ar-cmdline.
+* updating an archive: ar-cmdline.
+* version: Top.
+* writing archive index: ar-cmdline.
+
+
+
+Tag Table:
+Node: Top918
+Node: ar1769
+Node: ar-cmdline3935
+Node: ar-scripts10370
+Node: nm16051
+Node: objcopy19624
+Node: objdump21994
+Node: ranlib25572
+Node: size26306
+Node: strings28993
+Node: strip30625
+Node: c++filt32286
+Node: Index34647
+
+End Tag Table