1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- This file documents the gprof profiler of the GNU system. 4 5Copyright (C) 1988-2021 Free Software Foundation, Inc. 6 7Permission is granted to copy, distribute and/or modify this document 8under the terms of the GNU Free Documentation License, Version 1.3 9or any later version published by the Free Software Foundation; 10with no Invariant Sections, with no Front-Cover Texts, and with no 11Back-Cover Texts. A copy of the license is included in the 12section entitled "GNU Free Documentation License". 13 --> 14<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 15<head> 16<title>GNU gprof: GNU Free Documentation License</title> 17 18<meta name="description" content="GNU gprof: GNU Free Documentation License"> 19<meta name="keywords" content="GNU gprof: GNU Free Documentation License"> 20<meta name="resource-type" content="document"> 21<meta name="distribution" content="global"> 22<meta name="Generator" content="makeinfo"> 23<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 24<link href="index.html#Top" rel="start" title="Top"> 25<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 26<link href="index.html#Top" rel="up" title="Top"> 27<link href="Debugging.html#Debugging" rel="previous" title="Debugging"> 28<style type="text/css"> 29<!-- 30a.summary-letter {text-decoration: none} 31blockquote.smallquotation {font-size: smaller} 32div.display {margin-left: 3.2em} 33div.example {margin-left: 3.2em} 34div.indentedblock {margin-left: 3.2em} 35div.lisp {margin-left: 3.2em} 36div.smalldisplay {margin-left: 3.2em} 37div.smallexample {margin-left: 3.2em} 38div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 39div.smalllisp {margin-left: 3.2em} 40kbd {font-style:oblique} 41pre.display {font-family: inherit} 42pre.format {font-family: inherit} 43pre.menu-comment {font-family: serif} 44pre.menu-preformatted {font-family: serif} 45pre.smalldisplay {font-family: inherit; font-size: smaller} 46pre.smallexample {font-size: smaller} 47pre.smallformat {font-family: inherit; font-size: smaller} 48pre.smalllisp {font-size: smaller} 49span.nocodebreak {white-space:nowrap} 50span.nolinebreak {white-space:nowrap} 51span.roman {font-family:serif; font-weight:normal} 52span.sansserif {font-family:sans-serif; font-weight:normal} 53ul.no-bullet {list-style: none} 54--> 55</style> 56 57 58</head> 59 60<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 61<a name="GNU-Free-Documentation-License"></a> 62<div class="header"> 63<p> 64Previous: <a href="Details.html#Details" accesskey="p" rel="previous">Details</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p> 65</div> 66<hr> 67<a name="GNU-Free-Documentation-License-1"></a> 68<h2 class="appendix">Appendix A GNU Free Documentation License</h2> 69<div align="center">Version 1.3, 3 November 2008 70</div> 71 72<div class="display"> 73<pre class="display">Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc. 74<a href="http://fsf.org/">http://fsf.org/</a> 75 76Everyone is permitted to copy and distribute verbatim copies 77of this license document, but changing it is not allowed. 78</pre></div> 79 80<ol> 81<li> PREAMBLE 82 83<p>The purpose of this License is to make a manual, textbook, or other 84functional and useful document <em>free</em> in the sense of freedom: to 85assure everyone the effective freedom to copy and redistribute it, 86with or without modifying it, either commercially or noncommercially. 87Secondarily, this License preserves for the author and publisher a way 88to get credit for their work, while not being considered responsible 89for modifications made by others. 90</p> 91<p>This License is a kind of “copyleft”, which means that derivative 92works of the document must themselves be free in the same sense. It 93complements the GNU General Public License, which is a copyleft 94license designed for free software. 95</p> 96<p>We have designed this License in order to use it for manuals for free 97software, because free software needs free documentation: a free 98program should come with manuals providing the same freedoms that the 99software does. But this License is not limited to software manuals; 100it can be used for any textual work, regardless of subject matter or 101whether it is published as a printed book. We recommend this License 102principally for works whose purpose is instruction or reference. 103</p> 104</li><li> APPLICABILITY AND DEFINITIONS 105 106<p>This License applies to any manual or other work, in any medium, that 107contains a notice placed by the copyright holder saying it can be 108distributed under the terms of this License. Such a notice grants a 109world-wide, royalty-free license, unlimited in duration, to use that 110work under the conditions stated herein. The “Document”, below, 111refers to any such manual or work. Any member of the public is a 112licensee, and is addressed as “you”. You accept the license if you 113copy, modify or distribute the work in a way requiring permission 114under copyright law. 115</p> 116<p>A “Modified Version” of the Document means any work containing the 117Document or a portion of it, either copied verbatim, or with 118modifications and/or translated into another language. 119</p> 120<p>A “Secondary Section” is a named appendix or a front-matter section 121of the Document that deals exclusively with the relationship of the 122publishers or authors of the Document to the Document’s overall 123subject (or to related matters) and contains nothing that could fall 124directly within that overall subject. (Thus, if the Document is in 125part a textbook of mathematics, a Secondary Section may not explain 126any mathematics.) The relationship could be a matter of historical 127connection with the subject or with related matters, or of legal, 128commercial, philosophical, ethical or political position regarding 129them. 130</p> 131<p>The “Invariant Sections” are certain Secondary Sections whose titles 132are designated, as being those of Invariant Sections, in the notice 133that says that the Document is released under this License. If a 134section does not fit the above definition of Secondary then it is not 135allowed to be designated as Invariant. The Document may contain zero 136Invariant Sections. If the Document does not identify any Invariant 137Sections then there are none. 138</p> 139<p>The “Cover Texts” are certain short passages of text that are listed, 140as Front-Cover Texts or Back-Cover Texts, in the notice that says that 141the Document is released under this License. A Front-Cover Text may 142be at most 5 words, and a Back-Cover Text may be at most 25 words. 143</p> 144<p>A “Transparent” copy of the Document means a machine-readable copy, 145represented in a format whose specification is available to the 146general public, that is suitable for revising the document 147straightforwardly with generic text editors or (for images composed of 148pixels) generic paint programs or (for drawings) some widely available 149drawing editor, and that is suitable for input to text formatters or 150for automatic translation to a variety of formats suitable for input 151to text formatters. A copy made in an otherwise Transparent file 152format whose markup, or absence of markup, has been arranged to thwart 153or discourage subsequent modification by readers is not Transparent. 154An image format is not Transparent if used for any substantial amount 155of text. A copy that is not “Transparent” is called “Opaque”. 156</p> 157<p>Examples of suitable formats for Transparent copies include plain 158<small>ASCII</small> without markup, Texinfo input format, LaTeX input 159format, <acronym>SGML</acronym> or <acronym>XML</acronym> using a publicly available 160<acronym>DTD</acronym>, and standard-conforming simple <acronym>HTML</acronym>, 161PostScript or <acronym>PDF</acronym> designed for human modification. Examples 162of transparent image formats include <acronym>PNG</acronym>, <acronym>XCF</acronym> and 163<acronym>JPG</acronym>. Opaque formats include proprietary formats that can be 164read and edited only by proprietary word processors, <acronym>SGML</acronym> or 165<acronym>XML</acronym> for which the <acronym>DTD</acronym> and/or processing tools are 166not generally available, and the machine-generated <acronym>HTML</acronym>, 167PostScript or <acronym>PDF</acronym> produced by some word processors for 168output purposes only. 169</p> 170<p>The “Title Page” means, for a printed book, the title page itself, 171plus such following pages as are needed to hold, legibly, the material 172this License requires to appear in the title page. For works in 173formats which do not have any title page as such, “Title Page” means 174the text near the most prominent appearance of the work’s title, 175preceding the beginning of the body of the text. 176</p> 177<p>The “publisher” means any person or entity that distributes copies 178of the Document to the public. 179</p> 180<p>A section “Entitled XYZ” means a named subunit of the Document whose 181title either is precisely XYZ or contains XYZ in parentheses following 182text that translates XYZ in another language. (Here XYZ stands for a 183specific section name mentioned below, such as “Acknowledgements”, 184“Dedications”, “Endorsements”, or “History”.) To “Preserve the Title” 185of such a section when you modify the Document means that it remains a 186section “Entitled XYZ” according to this definition. 187</p> 188<p>The Document may include Warranty Disclaimers next to the notice which 189states that this License applies to the Document. These Warranty 190Disclaimers are considered to be included by reference in this 191License, but only as regards disclaiming warranties: any other 192implication that these Warranty Disclaimers may have is void and has 193no effect on the meaning of this License. 194</p> 195</li><li> VERBATIM COPYING 196 197<p>You may copy and distribute the Document in any medium, either 198commercially or noncommercially, provided that this License, the 199copyright notices, and the license notice saying this License applies 200to the Document are reproduced in all copies, and that you add no other 201conditions whatsoever to those of this License. You may not use 202technical measures to obstruct or control the reading or further 203copying of the copies you make or distribute. However, you may accept 204compensation in exchange for copies. If you distribute a large enough 205number of copies you must also follow the conditions in section 3. 206</p> 207<p>You may also lend copies, under the same conditions stated above, and 208you may publicly display copies. 209</p> 210</li><li> COPYING IN QUANTITY 211 212<p>If you publish printed copies (or copies in media that commonly have 213printed covers) of the Document, numbering more than 100, and the 214Document’s license notice requires Cover Texts, you must enclose the 215copies in covers that carry, clearly and legibly, all these Cover 216Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on 217the back cover. Both covers must also clearly and legibly identify 218you as the publisher of these copies. The front cover must present 219the full title with all words of the title equally prominent and 220visible. You may add other material on the covers in addition. 221Copying with changes limited to the covers, as long as they preserve 222the title of the Document and satisfy these conditions, can be treated 223as verbatim copying in other respects. 224</p> 225<p>If the required texts for either cover are too voluminous to fit 226legibly, you should put the first ones listed (as many as fit 227reasonably) on the actual cover, and continue the rest onto adjacent 228pages. 229</p> 230<p>If you publish or distribute Opaque copies of the Document numbering 231more than 100, you must either include a machine-readable Transparent 232copy along with each Opaque copy, or state in or with each Opaque copy 233a computer-network location from which the general network-using 234public has access to download using public-standard network protocols 235a complete Transparent copy of the Document, free of added material. 236If you use the latter option, you must take reasonably prudent steps, 237when you begin distribution of Opaque copies in quantity, to ensure 238that this Transparent copy will remain thus accessible at the stated 239location until at least one year after the last time you distribute an 240Opaque copy (directly or through your agents or retailers) of that 241edition to the public. 242</p> 243<p>It is requested, but not required, that you contact the authors of the 244Document well before redistributing any large number of copies, to give 245them a chance to provide you with an updated version of the Document. 246</p> 247</li><li> MODIFICATIONS 248 249<p>You may copy and distribute a Modified Version of the Document under 250the conditions of sections 2 and 3 above, provided that you release 251the Modified Version under precisely this License, with the Modified 252Version filling the role of the Document, thus licensing distribution 253and modification of the Modified Version to whoever possesses a copy 254of it. In addition, you must do these things in the Modified Version: 255</p> 256<ol> 257<li> Use in the Title Page (and on the covers, if any) a title distinct 258from that of the Document, and from those of previous versions 259(which should, if there were any, be listed in the History section 260of the Document). You may use the same title as a previous version 261if the original publisher of that version gives permission. 262 263</li><li> List on the Title Page, as authors, one or more persons or entities 264responsible for authorship of the modifications in the Modified 265Version, together with at least five of the principal authors of the 266Document (all of its principal authors, if it has fewer than five), 267unless they release you from this requirement. 268 269</li><li> State on the Title page the name of the publisher of the 270Modified Version, as the publisher. 271 272</li><li> Preserve all the copyright notices of the Document. 273 274</li><li> Add an appropriate copyright notice for your modifications 275adjacent to the other copyright notices. 276 277</li><li> Include, immediately after the copyright notices, a license notice 278giving the public permission to use the Modified Version under the 279terms of this License, in the form shown in the Addendum below. 280 281</li><li> Preserve in that license notice the full lists of Invariant Sections 282and required Cover Texts given in the Document’s license notice. 283 284</li><li> Include an unaltered copy of this License. 285 286</li><li> Preserve the section Entitled “History”, Preserve its Title, and add 287to it an item stating at least the title, year, new authors, and 288publisher of the Modified Version as given on the Title Page. If 289there is no section Entitled “History” in the Document, create one 290stating the title, year, authors, and publisher of the Document as 291given on its Title Page, then add an item describing the Modified 292Version as stated in the previous sentence. 293 294</li><li> Preserve the network location, if any, given in the Document for 295public access to a Transparent copy of the Document, and likewise 296the network locations given in the Document for previous versions 297it was based on. These may be placed in the “History” section. 298You may omit a network location for a work that was published at 299least four years before the Document itself, or if the original 300publisher of the version it refers to gives permission. 301 302</li><li> For any section Entitled “Acknowledgements” or “Dedications”, Preserve 303the Title of the section, and preserve in the section all the 304substance and tone of each of the contributor acknowledgements and/or 305dedications given therein. 306 307</li><li> Preserve all the Invariant Sections of the Document, 308unaltered in their text and in their titles. Section numbers 309or the equivalent are not considered part of the section titles. 310 311</li><li> Delete any section Entitled “Endorsements”. Such a section 312may not be included in the Modified Version. 313 314</li><li> Do not retitle any existing section to be Entitled “Endorsements” or 315to conflict in title with any Invariant Section. 316 317</li><li> Preserve any Warranty Disclaimers. 318</li></ol> 319 320<p>If the Modified Version includes new front-matter sections or 321appendices that qualify as Secondary Sections and contain no material 322copied from the Document, you may at your option designate some or all 323of these sections as invariant. To do this, add their titles to the 324list of Invariant Sections in the Modified Version’s license notice. 325These titles must be distinct from any other section titles. 326</p> 327<p>You may add a section Entitled “Endorsements”, provided it contains 328nothing but endorsements of your Modified Version by various 329parties—for example, statements of peer review or that the text has 330been approved by an organization as the authoritative definition of a 331standard. 332</p> 333<p>You may add a passage of up to five words as a Front-Cover Text, and a 334passage of up to 25 words as a Back-Cover Text, to the end of the list 335of Cover Texts in the Modified Version. Only one passage of 336Front-Cover Text and one of Back-Cover Text may be added by (or 337through arrangements made by) any one entity. If the Document already 338includes a cover text for the same cover, previously added by you or 339by arrangement made by the same entity you are acting on behalf of, 340you may not add another; but you may replace the old one, on explicit 341permission from the previous publisher that added the old one. 342</p> 343<p>The author(s) and publisher(s) of the Document do not by this License 344give permission to use their names for publicity for or to assert or 345imply endorsement of any Modified Version. 346</p> 347</li><li> COMBINING DOCUMENTS 348 349<p>You may combine the Document with other documents released under this 350License, under the terms defined in section 4 above for modified 351versions, provided that you include in the combination all of the 352Invariant Sections of all of the original documents, unmodified, and 353list them all as Invariant Sections of your combined work in its 354license notice, and that you preserve all their Warranty Disclaimers. 355</p> 356<p>The combined work need only contain one copy of this License, and 357multiple identical Invariant Sections may be replaced with a single 358copy. If there are multiple Invariant Sections with the same name but 359different contents, make the title of each such section unique by 360adding at the end of it, in parentheses, the name of the original 361author or publisher of that section if known, or else a unique number. 362Make the same adjustment to the section titles in the list of 363Invariant Sections in the license notice of the combined work. 364</p> 365<p>In the combination, you must combine any sections Entitled “History” 366in the various original documents, forming one section Entitled 367“History”; likewise combine any sections Entitled “Acknowledgements”, 368and any sections Entitled “Dedications”. You must delete all 369sections Entitled “Endorsements.” 370</p> 371</li><li> COLLECTIONS OF DOCUMENTS 372 373<p>You may make a collection consisting of the Document and other documents 374released under this License, and replace the individual copies of this 375License in the various documents with a single copy that is included in 376the collection, provided that you follow the rules of this License for 377verbatim copying of each of the documents in all other respects. 378</p> 379<p>You may extract a single document from such a collection, and distribute 380it individually under this License, provided you insert a copy of this 381License into the extracted document, and follow this License in all 382other respects regarding verbatim copying of that document. 383</p> 384</li><li> AGGREGATION WITH INDEPENDENT WORKS 385 386<p>A compilation of the Document or its derivatives with other separate 387and independent documents or works, in or on a volume of a storage or 388distribution medium, is called an “aggregate” if the copyright 389resulting from the compilation is not used to limit the legal rights 390of the compilation’s users beyond what the individual works permit. 391When the Document is included in an aggregate, this License does not 392apply to the other works in the aggregate which are not themselves 393derivative works of the Document. 394</p> 395<p>If the Cover Text requirement of section 3 is applicable to these 396copies of the Document, then if the Document is less than one half of 397the entire aggregate, the Document’s Cover Texts may be placed on 398covers that bracket the Document within the aggregate, or the 399electronic equivalent of covers if the Document is in electronic form. 400Otherwise they must appear on printed covers that bracket the whole 401aggregate. 402</p> 403</li><li> TRANSLATION 404 405<p>Translation is considered a kind of modification, so you may 406distribute translations of the Document under the terms of section 4. 407Replacing Invariant Sections with translations requires special 408permission from their copyright holders, but you may include 409translations of some or all Invariant Sections in addition to the 410original versions of these Invariant Sections. You may include a 411translation of this License, and all the license notices in the 412Document, and any Warranty Disclaimers, provided that you also include 413the original English version of this License and the original versions 414of those notices and disclaimers. In case of a disagreement between 415the translation and the original version of this License or a notice 416or disclaimer, the original version will prevail. 417</p> 418<p>If a section in the Document is Entitled “Acknowledgements”, 419“Dedications”, or “History”, the requirement (section 4) to Preserve 420its Title (section 1) will typically require changing the actual 421title. 422</p> 423</li><li> TERMINATION 424 425<p>You may not copy, modify, sublicense, or distribute the Document 426except as expressly provided under this License. Any attempt 427otherwise to copy, modify, sublicense, or distribute it is void, and 428will automatically terminate your rights under this License. 429</p> 430<p>However, if you cease all violation of this License, then your license 431from a particular copyright holder is reinstated (a) provisionally, 432unless and until the copyright holder explicitly and finally 433terminates your license, and (b) permanently, if the copyright holder 434fails to notify you of the violation by some reasonable means prior to 43560 days after the cessation. 436</p> 437<p>Moreover, your license from a particular copyright holder is 438reinstated permanently if the copyright holder notifies you of the 439violation by some reasonable means, this is the first time you have 440received notice of violation of this License (for any work) from that 441copyright holder, and you cure the violation prior to 30 days after 442your receipt of the notice. 443</p> 444<p>Termination of your rights under this section does not terminate the 445licenses of parties who have received copies or rights from you under 446this License. If your rights have been terminated and not permanently 447reinstated, receipt of a copy of some or all of the same material does 448not give you any rights to use it. 449</p> 450</li><li> FUTURE REVISIONS OF THIS LICENSE 451 452<p>The Free Software Foundation may publish new, revised versions 453of the GNU Free Documentation License from time to time. Such new 454versions will be similar in spirit to the present version, but may 455differ in detail to address new problems or concerns. See 456<a href="http://www.gnu.org/copyleft/">http://www.gnu.org/copyleft/</a>. 457</p> 458<p>Each version of the License is given a distinguishing version number. 459If the Document specifies that a particular numbered version of this 460License “or any later version” applies to it, you have the option of 461following the terms and conditions either of that specified version or 462of any later version that has been published (not as a draft) by the 463Free Software Foundation. If the Document does not specify a version 464number of this License, you may choose any version ever published (not 465as a draft) by the Free Software Foundation. If the Document 466specifies that a proxy can decide which future versions of this 467License can be used, that proxy’s public statement of acceptance of a 468version permanently authorizes you to choose that version for the 469Document. 470</p> 471</li><li> RELICENSING 472 473<p>“Massive Multiauthor Collaboration Site” (or “MMC Site”) means any 474World Wide Web server that publishes copyrightable works and also 475provides prominent facilities for anybody to edit those works. A 476public wiki that anybody can edit is an example of such a server. A 477“Massive Multiauthor Collaboration” (or “MMC”) contained in the 478site means any set of copyrightable works thus published on the MMC 479site. 480</p> 481<p>“CC-BY-SA” means the Creative Commons Attribution-Share Alike 3.0 482license published by Creative Commons Corporation, a not-for-profit 483corporation with a principal place of business in San Francisco, 484California, as well as future copyleft versions of that license 485published by that same organization. 486</p> 487<p>“Incorporate” means to publish or republish a Document, in whole or 488in part, as part of another Document. 489</p> 490<p>An MMC is “eligible for relicensing” if it is licensed under this 491License, and if all works that were first published under this License 492somewhere other than this MMC, and subsequently incorporated in whole 493or in part into the MMC, (1) had no cover texts or invariant sections, 494and (2) were thus incorporated prior to November 1, 2008. 495</p> 496<p>The operator of an MMC Site may republish an MMC contained in the site 497under CC-BY-SA on the same site at any time before August 1, 2009, 498provided the MMC is eligible for relicensing. 499</p> 500</li></ol> 501 502<a name="ADDENDUM_003a-How-to-use-this-License-for-your-documents"></a> 503<h3 class="heading">ADDENDUM: How to use this License for your documents</h3> 504 505<p>To use this License in a document you have written, include a copy of 506the License in the document and put the following copyright and 507license notices just after the title page: 508</p> 509<div class="smallexample"> 510<pre class="smallexample"> Copyright (C) <var>year</var> <var>your name</var>. 511 Permission is granted to copy, distribute and/or modify this document 512 under the terms of the GNU Free Documentation License, Version 1.3 513 or any later version published by the Free Software Foundation; 514 with no Invariant Sections, no Front-Cover Texts, and no Back-Cover 515 Texts. A copy of the license is included in the section entitled ``GNU 516 Free Documentation License''. 517</pre></div> 518 519<p>If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, 520replace the “with…Texts.” line with this: 521</p> 522<div class="smallexample"> 523<pre class="smallexample"> with the Invariant Sections being <var>list their titles</var>, with 524 the Front-Cover Texts being <var>list</var>, and with the Back-Cover Texts 525 being <var>list</var>. 526</pre></div> 527 528<p>If you have Invariant Sections without Cover Texts, or some other 529combination of the three, merge those two alternatives to suit the 530situation. 531</p> 532<p>If your document contains nontrivial examples of program code, we 533recommend releasing these examples in parallel under your choice of 534free software license, such as the GNU General Public License, 535to permit their use in free software. 536</p> 537 538 539<hr> 540<div class="header"> 541<p> 542Previous: <a href="Details.html#Details" accesskey="p" rel="previous">Details</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>]</p> 543</div> 544 545 546 547</body> 548</html> 549