X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=binutils%2Fbinutils.texi;h=4f263d64f2ffda21e68b93f0112e94a373804f4d;hb=cf055d540cdf37fb33e63e20c692d56132f4d983;hp=053df4a50d753aa55d866c5b899cef85e1506abf;hpb=16c3e32aa01eb15913e7a117b93e1c34c0837c95;p=deliverable%2Fbinutils-gdb.git diff --git a/binutils/binutils.texi b/binutils/binutils.texi index 053df4a50d..4f263d64f2 100644 --- a/binutils/binutils.texi +++ b/binutils/binutils.texi @@ -5,19 +5,35 @@ @ifinfo @format START-INFO-DIR-ENTRY -* Binutils: (binutils). The GNU binary utilities "ar", "objcopy", - "objdump", "nm", "nlmconv", "size", - "strings", "strip", and "ranlib". +* Binutils: (binutils). The GNU binary utilities. +* ar: (binutils)ar. Create, modify, and extract from archives +* nm: (binutils)nm. List symbols from object files +* objcopy: (binutils)objcopy. Copy and translate object files +* objdump: (binutils)objdump. Display information from object files +* ranlib: (binutils)ranlib. Generate index to archive contents +* readelf: (binutils)readelf. Display the contents of ELF format files. +* size: (binutils)size. List section sizes and total size +* strings: (binutils)strings. List printable strings from files +* strip: (binutils)strip. Discard symbols +* c++filt: (binutils)c++filt. Filter to demangle encoded C++ symbols +* cxxfilt: (binutils)c++filt. MS-DOS name for c++filt +* addr2line: (binutils)addr2line. Convert addresses to file and line +* nlmconv: (binutils)nlmconv. Converts object code into an NLM +* windres: (binutils)windres. Manipulate Windows resources +* dlltool: (binutils)dlltool. Create files needed to build and use DLLs END-INFO-DIR-ENTRY @end format @end ifinfo @ifinfo -Copyright @copyright{} 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. +Copyright @copyright{} 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000 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, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 + 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". @ignore Permission is granted to process this file through TeX and print the @@ -26,25 +42,17 @@ notice identical to this one except for the removal of this paragraph (this paragraph not being relevant to the printed manual). @end ignore - -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. @end ifinfo @synindex ky cp @c @c This file documents the GNU binary utilities "ar", "ld", "objcopy", -@c "objdump", "nm", "size", "strings", "strip", and "ranlib". +@c "objdump", "nm", "size", "strings", "strip", "readelf" and "ranlib". @c -@c Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. +@c Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. @c @c This text may be freely distributed under the terms of the GNU -@c General Public License. +@c Free Documentation License. @c @setchapternewpage odd @@ -66,19 +74,15 @@ into another language, under the above conditions for modified versions. @end tex @vskip 0pt plus 1filll -Copyright @copyright{} 1991, 92, 93, 94, 95, 1996 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. +Copyright @copyright{} 1991, 92, 93, 94, 95, 96, 97, 1998, 2000 Free Software Foundation, Inc. -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, distribute and/or modify this document + under the terms of the GNU Free Documentation License, Version 1.1 + 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". -Permission is granted to copy and distribute translations of this manual -into another language, under the above conditions for modified versions. @end titlepage @node Top @@ -105,6 +109,9 @@ Display information from object files @item ranlib Generate index to archive contents +@item readelf +Display the contents of ELF format files. + @item size List file section sizes and total size @@ -115,26 +122,47 @@ List printable strings from files Discard symbols @item c++filt -Demangle encoded C++ symbols +Demangle encoded C++ symbols (on MS-DOS, this program is named +@code{cxxfilt}) + +@item addr2line +Convert addresses into file names and line numbers @item nlmconv Convert object code into a Netware Loadable Module + +@item windres +Manipulate Windows resources + +@item dlltool +Create the files needed to build and use Dynamic Link Libraries @end table @end iftex +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 * 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 * c++filt:: Filter to demangle encoded C++ symbols +* cxxfilt: c++filt. MS-DOS name for c++filt +* addr2line:: Convert addresses to file and line * nlmconv:: Converts object code into an NLM +* windres:: Manipulate Windows resources +* dlltool:: Create files needed to build and use DLLs * Selecting The Target System:: How these utilities determine the target. -* Index:: +* Reporting Bugs:: Reporting Bugs +* GNU Free Documentation License:: GNU Free Documentation License +* Index:: Index @end menu @node ar @@ -144,7 +172,7 @@ Convert object code into a Netware Loadable Module @cindex archives @cindex collections of files @smallexample -ar [-]@var{p}[@var{mod} [@var{relpos}]] @var{archive} [@var{member}@dots{}] +ar [-]@var{p}[@var{mod} [@var{relpos}] [@var{count}]] @var{archive} [@var{member}@dots{}] ar -M [ } entry in the @samp{.drectve} +section of the object file. This can be done in C by using the +asm() operator: + +@smallexample + asm (".section .drectve"); + asm (".ascii \"-export:my_func\""); + + int my_func (void) @{ @dots{} @} +@end smallexample + +The second file needed for DLL creation is an exports file. This file +is linked with the object files that make up the body of the DLL and it +handles the interface between the DLL and the outside world. This is a +binary file and it can be created by giving the @samp{-e} option to +@code{dlltool} when it is creating or reading in a .def file. + +The third file needed for DLL creation is the library file that programs +will link with in order to access the functions in the DLL. This file +can be created by giving the @samp{-l} option to dlltool when it +is creating or reading in a .def file. + +@code{dlltool} builds the library file by hand, but it builds the +exports file by creating temporary files containing assembler statements +and then assembling these. The @samp{-S} command line option can be +used to specify the path to the assembler that dlltool will use, +and the @samp{-f} option can be used to pass specific flags to that +assembler. The @samp{-n} can be used to prevent dlltool from deleting +these temporary assembler files when it is done, and if @samp{-n} is +specified twice then this will prevent dlltool from deleting the +temporary object files it used to build the library. + +Here is an example of creating a DLL from a source file @samp{dll.c} and +also creating a program (from an object file called @samp{program.o}) +that uses that DLL: + +@smallexample + gcc -c dll.c + dlltool -e exports.o -l dll.lib dll.o + gcc dll.o exports.o -o dll.dll + gcc program.o dll.lib -o program +@end smallexample + +The command line options have the following meanings: + +@table @code + +@item -d @var{filename} +@itemx --input-def @var{filename} +@cindex input .def file +Specifies the name of a .def file to be read in and processed. + +@item -b @var{filename} +@itemx --base-file @var{filename} +@cindex base files +Specifies the name of a base file to be read in and processed. The +contents of this file will be added to the relocation section in the +exports file generated by dlltool. + +@item -e @var{filename} +@itemx --output-exp @var{filename} +Specifies the name of the export file to be created by dlltool. + +@item -z @var{filename} +@itemx --output-def @var{filename} +Specifies the name of the .def file to be created by dlltool. + +@item -l @var{filename} +@itemx --output-lib @var{filename} +Specifies the name of the library file to be created by dlltool. + +@item --export-all-symbols +Treat all global and weak defined symbols found in the input object +files as symbols to be exported. There is a small list of symbols which +are not exported by default; see the @code{--no-default-excludes} +option. You may add to the list of symbols to not export by using the +@code{--exclude-symbols} option. + +@item --no-export-all-symbols +Only export symbols explicitly listed in an input .def file or in +@samp{.drectve} sections in the input object files. This is the default +behaviour. The @samp{.drectve} sections are created by @samp{dllexport} +attributes in the source code. + +@item --exclude-symbols @var{list} +Do not export the symbols in @var{list}. This is a list of symbol names +separated by comma or colon characters. The symbol names should not +contain a leading underscore. This is only meaningful when +@code{--export-all-symbols} is used. + +@item --no-default-excludes +When @code{--export-all-symbols} is used, it will by default avoid +exporting certain special symbols. The current list of symbols to avoid +exporting is @samp{DllMain@@12}, @samp{DllEntryPoint@@0}, +@samp{impure_ptr}. You may use the @code{--no-default-excludes} option +to go ahead and export these special symbols. This is only meaningful +when @code{--export-all-symbols} is used. + +@item -S @var{path} +@itemx --as @var{path} +Specifies the path, including the filename, of the assembler to be used +to create the exports file. + +@item -f @var{switches} +@itemx --as-flags @var{switches} +Specifies any specific command line switches to be passed to the +assembler when building the exports file. This option will work even if +the @samp{-S} option is not used. This option only takes one argument, +and if it occurs more than once on the command line, then later +occurrences will override earlier occurrences. So if it is necessary to +pass multiple switches to the assembler they should be enclosed in +double quotes. + +@item -D @var{name} +@itemx --dll-name @var{name} +Specifies the name to be stored in the .def file as the name of the DLL +when the @samp{-e} option is used. If this option is not present, then +the filename given to the @samp{-e} option will be used as the name of +the DLL. + +@item -m @var{machine} +@itemx -machine @var{machine} +Specifies the type of machine for which the library file should be +built. @code{dlltool} has a built in default type, depending upon how +it was created, but this option can be used to override that. This is +normally only useful when creating DLLs for an ARM processor, when the +contents of the DLL are actually encode using THUMB instructions. + +@item -a +@itemx --add-indirect +Specifies that when @code{dlltool} is creating the exports file it +should add a section which allows the exported functions to be +referenced without using the import library. Whatever the hell that +means! + +@item -U +@itemx --add-underscore +Specifies that when @code{dlltool} is creating the exports file it +should prepend an underscore to the names of the exported functions. + +@item -k +@itemx --kill-at +Specifies that when @code{dlltool} is creating the exports file it +should not append the string @samp{@@ }. These numbers are +called ordinal numbers and they represent another way of accessing the +function in a DLL, other than by name. + +@item -A +@itemx --add-stdcall-alias +Specifies that when @code{dlltool} is creating the exports file it +should add aliases for stdcall symbols without @samp{@@ } +in addition to the symbols with @samp{@@ }. + +@item -x +@itemx --no-idata4 +Specifies that when @code{dlltool} is creating the exports and library +files it should omit the .idata4 section. This is for compatibility +with certain operating systems. + +@item -c +@itemx --no-idata5 +Specifies that when @code{dlltool} is creating the exports and library +files it should omit the .idata5 section. This is for compatibility +with certain operating systems. + +@item -i +@itemx --interwork +Specifies that @code{dlltool} should mark the objects in the library +file and exports file that it produces as supporting interworking +between ARM and THUMB code. + +@item -n +@itemx --nodelete +Makes @code{dlltool} preserve the temporary assembler files it used to +create the exports file. If this option is repeated then dlltool will +also preserve the temporary object files it uses to create the library +file. + +@item -v +@itemx --verbose +Make dlltool describe what it is doing. + +@item -h +@itemx --help +Displays a list of command line options and then exits. + +@item -V +@itemx --version +Displays dlltool's version number and then exits. + +@end table + +@node readelf +@chapter readelf + +@cindex ELF file information +@kindex readelf + +@smallexample +readelf [ -a | --all ] + [ -h | --file-header] + [ -l | --program-headers | --segments] + [ -S | --section-headers | --sections] + [ -e | --headers] + [ -s | --syms | --symbols] + [ -n | --notes] + [ -r | --relocs] + [ -d | --dynamic] + [ -V | --version-info] + [ -D | --use-dynamic] + [ -x | --hex-dump=] + [ -w[liapr] | --debug-dump[=info,=line,=abbrev,=pubnames,=ranges]] + [ --histogram] + [ -v | --version] + [ -H | --help] + @var{elffile}@dots{} +@end smallexample + +@code{readelf} displays information about one or more ELF format object +files. The options control what particular information to display. + +@var{elffile}@dots{} are the object files to be examined. At the +moment, @code{readelf} does not support examining archives, nor does it +support examing 64 bit ELF files. + +The long and short forms of options, shown here as alternatives, are +equivalent. At least one option besides @samp{-v} or @samp{-H} must be +given. + +@table @code +@item -a +@itemx --all +Equivalent to specifiying @samp{--file-header}, +@samp{--program-headers}, @samp{--sections}, @samp{--symbols}, +@samp{--relocs}, @samp{--dynamic}, @samp{--notes} and +@samp{--version-info}. + +@item -h +@itemx --file-header +@cindex ELF file header information +Displays the information contained in the ELF header at the start of the +file. + +@item -l +@itemx --program-headers +@itemx --segments +@cindex ELF program header information +@cindex ELF segment information +Displays the information contained in the file's segment headers, if it +has any. + +@item -S +@itemx --sections +@itemx --section-headers +@cindex ELF section information +Displays the information contained in the file's section headers, if it +has any. + +@item -s +@itemx --symbols +@itemx --syms +@cindex ELF symbol table information +Displays the entries in symbol table section of the file, if it has one. + +@item -e +@itemx --headers +Display all the headers in the file. Equivalent to @samp{-h -l -S}. + +@item -n +@itemx --notes +@cindex ELF core notes +Displays the contents of the NOTE segment, if it exists. + +@item -r +@itemx --relocs +@cindex ELF reloc information +Displays the contents of the file's relocation section, if it ha one. + +@item -d +@itemx --dynamic +@cindex ELF dynamic section information +Displays the contents of the file's dynamic section, if it has one. + +@item -V +@itemx --version-info +@cindex ELF version sections informations +Displays the contents of the version sections in the file, it they +exist. + +@item -D +@itemx --use-dynamic +When displaying symbols, this option makes @code{readelf} use the +symbol table in the file's dynamic section, rather than the one in the +symbols section. + +@item -x +@itemx --hex-dump= +Displays the contents of the indicated section as a hexadecimal dump. + +@item -w[liapr] +@itemx --debug-dump[=line,=info,=abbrev,=pubnames,=ranges] +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. + +@item --histogram +Display a histogram of bucket list lengths when displaying the contents +of the symbol tables. + +@item -v +@itemx --version +Display the version number of readelf. + +@item -H +@itemx --help +Display the command line options understood by @code{readelf}. + +@end table + + @node Selecting The Target System @chapter Selecting the target system @@ -1753,6 +2635,16 @@ The command to list valid target values is @samp{objdump -i} Some sample values are: @samp{a.out-hp300bsd}, @samp{ecoff-littlemips}, @samp{a.out-sunos-big}. +You can also specify a target using a configuration triplet. This is +the same sort of name that is passed to @file{configure} to specify a +target. When you use a configuration triplet as an argument, it must be +fully canonicalized. You can see the canonical version of a triplet by +running the shell script @file{config.sub} which is included with the +sources. + +Some sample configuration triplets are: @samp{m68k-hp-bsd}, +@samp{mips-dec-ultrix}, @samp{sparc-sun-sunos}. + @subheading @code{objdump} Target Ways to specify: @@ -1949,6 +2841,578 @@ compiled-in @code{DEFAULT_EMULATION} from @file{Makefile}, which comes from @code{EMUL} in @file{config/@var{target}.mt} @end enumerate +@node Reporting Bugs +@chapter Reporting Bugs +@cindex bugs +@cindex reporting bugs + +Your bug reports play an essential role in making the binary utilities +reliable. + +Reporting a bug may help you by bringing a solution to your problem, or +it may not. But in any case the principal function of a bug report is +to help the entire community by making the next version of the binary +utilities work better. Bug reports are your contribution to their +maintenance. + +In order for a bug report to serve its purpose, you must include the +information that enables us to fix the bug. + +@menu +* Bug Criteria:: Have you found a bug? +* Bug Reporting:: How to report bugs +@end menu + +@node Bug Criteria +@section Have you found a bug? +@cindex bug criteria + +If you are not sure whether you have found a bug, here are some guidelines: + +@itemize @bullet +@cindex fatal signal +@cindex crash +@item +If a binary utility gets a fatal signal, for any input whatever, that is +a bug. Reliable utilities never crash. + +@cindex error on valid input +@item +If a binary utility produces an error message for valid input, that is a +bug. + +@item +If you are an experienced user of binary utilities, your suggestions for +improvement are welcome in any case. +@end itemize + +@node Bug Reporting +@section How to report bugs +@cindex bug reports +@cindex bugs, reporting + +A number of companies and individuals offer support for @sc{gnu} +products. If you obtained the binary utilities from a support +organization, we recommend you contact that organization first. + +You can find contact information for many support companies and +individuals in the file @file{etc/SERVICE} in the @sc{gnu} Emacs +distribution. + +In any event, we also recommend that you send bug reports for the binary +utilities to @samp{bug-gnu-utils@@gnu.org}. + +The fundamental principle of reporting bugs usefully is this: +@strong{report all the facts}. If you are not sure whether to state a +fact or leave it out, state it! + +Often people omit facts because they think they know what causes the +problem and assume that some details do not matter. Thus, you might +assume that the name of a file you use in an example does not matter. +Well, probably it does not, but one cannot be sure. Perhaps the bug is +a stray memory reference which happens to fetch from the location where +that pathname is stored in memory; perhaps, if the pathname were +different, the contents of that location would fool the utility into +doing the right thing despite the bug. Play it safe and give a +specific, complete example. That is the easiest thing for you to do, +and the most helpful. + +Keep in mind that the purpose of a bug report is to enable us to fix the bug if +it is new to us. Therefore, always write your bug reports on the assumption +that the bug has not been reported previously. + +Sometimes people give a few sketchy facts and ask, ``Does this ring a +bell?'' Those bug reports are useless, and we urge everyone to +@emph{refuse to respond to them} except to chide the sender to report +bugs properly. + +To enable us to fix the bug, you should include all these things: + +@itemize @bullet +@item +The version of the utility. Each utility announces it if you start it +with the @samp{--version} argument. + +Without this, we will not know whether there is any point in looking for +the bug in the current version of the binary utilities. + +@item +Any patches you may have applied to the source, including any patches +made to the @code{BFD} library. + +@item +The type of machine you are using, and the operating system name and +version number. + +@item +What compiler (and its version) was used to compile the utilities---e.g. +``@code{gcc-2.7}''. + +@item +The command arguments you gave the utility to observe the bug. To +guarantee you will not omit something important, list them all. A copy +of the Makefile (or the output from make) is sufficient. + +If we were to try to guess the arguments, we would probably guess wrong +and then we might not encounter the bug. + +@item +A complete input file, or set of input files, that will reproduce the +bug. If the utility is reading an object file or files, then it is +generally most helpful to send the actual object files, uuencoded if +necessary to get them through the mail system. Note that +@samp{bug-gnu-utils@@gnu.org} is a mailing list, so you should avoid +sending very large files to it. Making the files available for +anonymous FTP is OK. + +If the source files were produced exclusively using @sc{gnu} programs +(e.g., @code{gcc}, @code{gas}, and/or the @sc{gnu} @code{ld}), then it +may be OK to send the source files rather than the object files. In +this case, be sure to say exactly what version of @code{gcc}, or +whatever, was used to produce the object files. Also say how +@code{gcc}, or whatever, was configured. + +@item +A description of what behavior you observe that you believe is +incorrect. For example, ``It gets a fatal signal.'' + +Of course, if the bug is that the utility gets a fatal signal, then we +will certainly notice it. But if the bug is incorrect output, we might +not notice unless it is glaringly wrong. You might as well not give us +a chance to make a mistake. + +Even if the problem you experience is a fatal signal, you should still +say so explicitly. Suppose something strange is going on, such as your +copy of the utility is out of synch, or you have encountered a bug in +the C library on your system. (This has happened!) Your copy might +crash and ours would not. If you told us to expect a crash, then when +ours fails to crash, we would know that the bug was not happening for +us. If you had not told us to expect a crash, then we would not be able +to draw any conclusion from our observations. + +@item +If you wish to suggest changes to the source, send us context diffs, as +generated by @code{diff} with the @samp{-u}, @samp{-c}, or @samp{-p} +option. Always send diffs from the old file to the new file. If you +wish to discuss something in the @code{ld} source, refer to it by +context, not by line number. + +The line numbers in our development sources will not match those in your +sources. Your line numbers would convey no useful information to us. +@end itemize + +Here are some things that are not necessary: + +@itemize @bullet +@item +A description of the envelope of the bug. + +Often people who encounter a bug spend a lot of time investigating +which changes to the input file will make the bug go away and which +changes will not affect it. + +This is often time consuming and not very useful, because the way we +will find the bug is by running a single example under the debugger +with breakpoints, not by pure deduction from a series of examples. +We recommend that you save your time for something else. + +Of course, if you can find a simpler example to report @emph{instead} +of the original one, that is a convenience for us. Errors in the +output will be easier to spot, running under the debugger will take +less time, and so on. + +However, simplification is not vital; if you do not want to do this, +report the bug anyway and send us the entire test case you used. + +@item +A patch for the bug. + +A patch for the bug does help us if it is a good one. But do not omit +the necessary information, such as the test case, on the assumption that +a patch is all we need. We might see problems with your patch and decide +to fix the problem another way, or we might not understand it at all. + +Sometimes with programs as complicated as the binary utilities it is +very hard to construct an example that will make the program follow a +certain path through the code. If you do not send us the example, we +will not be able to construct one, so we will not be able to verify that +the bug is fixed. + +And if we cannot understand what bug you are trying to fix, or why your +patch should be an improvement, we will not install it. A test case will +help us to understand. + +@item +A guess about what the bug is or what it depends on. + +Such guesses are usually wrong. Even we cannot guess right about such +things without first using the debugger to find the facts. +@end itemize + +@node GNU Free Documentation License +@chapter GNU Free Documentation License +@cindex GNU Free Documentation License + + GNU Free Documentation License + + Version 1.1, March 2000 + + Copyright (C) 2000 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + 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 +written 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 that contains a +notice placed by the copyright holder saying it can be distributed +under the terms of this License. The "Document", below, refers to any +such manual or work. 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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 provided that you also include the +original English version of this License. In case of a disagreement +between the translation and the original English version of this +License, the original English version will prevail. + + +9. TERMINATION + +You may not copy, modify, sublicense, or distribute the Document except +as expressly provided for under this License. Any other attempt to +copy, modify, sublicense or distribute the Document is void, and will +automatically terminate your rights under this License. However, +parties who have received copies, or rights, from you under this +License will not have their licenses terminated so long as such +parties remain in full compliance. + + +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. + + +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: + +@smallexample + 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 1.1 + or any later version published by the Free Software Foundation; + with the Invariant Sections being LIST THEIR TITLES, with the + Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. + A copy of the license is included in the section entitled "GNU + Free Documentation License". +@end smallexample + +If you have no Invariant Sections, write "with no Invariant Sections" +instead of saying which ones are invariant. If you have no +Front-Cover Texts, write "no Front-Cover Texts" instead of +"Front-Cover Texts being LIST"; likewise for Back-Cover Texts. + +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. + @node Index @unnumbered Index