Subversion Repositories or1k

This is gdbint.info, produced by makeinfo version 4.1 from

./gdbint.texinfo.

INFO-DIR-SECTION Programming & development tools.

START-INFO-DIR-ENTRY

* Gdb-Internals: (gdbint).      The GNU debugger's internals.

END-INFO-DIR-ENTRY

   This file documents the internals of the GNU debugger GDB.

Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002

Free Software Foundation, Inc.  Contributed by Cygnus Solutions.

Written by John Gilmore.  Second Edition by Stan Shebs.

   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 the Front-Cover Texts being "A GNU Manual,"

and with the Back-Cover Texts as in (a) below.

   (a) The FSF's Back-Cover Text is: "You have freedom to copy and

modify this GNU Manual, like GNU software.  Copies published by the Free

Software Foundation raise funds for GNU development."

File: gdbint.info,  Node: GNU Free Documentation License,  Next: Index,  Prev: Hints,  Up: Top

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.  Any member of the public is a licensee,

     and is addressed as "you."

     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.

     (For example, 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.

     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 "Transparent" copy of the Document means a machine-readable copy,

     represented in a format whose specification is available to the

     general public, whose contents can be viewed and edited directly

     and 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 has been designed

     to thwart or discourage subsequent modification by readers is not

     Transparent.  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 designed for human modification.

     Opaque formats include PostScript, PDF, 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 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.

  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 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 publicly-accessible

     computer-network location containing a complete Transparent copy

     of the Document, free of added material, which the general

     network-using public has access to download anonymously at no

     charge using public-standard network protocols.  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 less than five).

     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", and 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. In any section entitled "Acknowledgements" or "Dedications",

     preserve the section's title, 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 as "Endorsements"    or to

     conflict in title with any Invariant Section.

     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.

     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, does not as a whole count as a

     Modified Version of the Document, provided no compilation

     copyright is claimed for the compilation.  Such a compilation is

     called an "aggregate", and this License does not apply to the

     other self-contained works thus compiled with the Document, on

     account of their being thus compiled, if they 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

     quarter of the entire aggregate, the Document's Cover Texts may be

     placed on covers that surround only the Document within the

     aggregate.  Otherwise they must appear on covers around 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 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:

     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."

   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.