ISO/IEC INTERNATIONAL STANDARD 23360-4 First edition 2006-12-15 Linux Standard Base (LSB) core specification 3.1 - Part 4: Specification for AMD64 architecture Specifications3.1relativesaunoyaudebasenormaliséLinux (LSB)- Partie4:SpécificationspourI'architectureAMD64 Reference number ISO/IEC 23360-4:2006(E) IEC ISO @ISO/IEC2006 ISO/IEC23360-4:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation @ISO/IEC2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either SO at the address below or ISO's member body in the country of the requester. ISO copyright office Casepostale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO/IEC23360-4:2006(E) Linux Standard Base Core Specification forAMD643.1 ISO/IEC 23360-4:2006(E) Copyright @ 2006 ISO/IEC This standard includes material that has been provided by the Free Standards Group under the GNU Free Documentation License Version 1.1 published by the Free Software Foundation. Portions of the text are copyrighted by the following parties: : The Regents of the University of California :FreeSoftwareFoundation : Ian F. Darwin .Paul Vixie : BSDI (now Wind River) : Andrew GMorgan : Jean-loup Gailly and Mark Adler : Massachusetts Institute of Technology These excerpts are being used in accordance with their respective licenses. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries. UNIX is a registered trademark of The Open Group. LSB is a trademark of the Free Standards Group in the United States and other countries AMD is a trademark of Advanced Micro Devices, Inc. Intel and Itanium are registered trademarks and Intel386 is a trademark of Intel Corporation. PowerPC is a registered trademark and PowerPC Architecture is a trademark of the IBM Corporation S/390 is a registered trademark of the IBM Corporation. OpenGL is a registered trademark of Silicon Graphics, Inc. ili ISO/IEC23360-4:2006(E) Contents Foreword.. ..vii Introduction .... ..viii I Introductory Elements 0 1.1 General... 1.2 Module Specific Scope..... ++1 2 References.... 2.1 Normative References ... ..2 2.2 Informative References/Bibliography 3 Requirements ... 3.1 Relevant Libraries.. 3.2 LSB Implementation Conformance 3.3 LSB Application Conformance... 4Definitions. .10 5 Terminology .. 6 Documentation Conventions.. 13 II Executable and Linking Format (ELF)... 7 Introduction... ..15 8 Low Level System Information..... 8.1 Machine Interface.... 8.2 Function Calling Sequence... ..3 Operating System Interface .... 8.4 Process Initialization.... .18 8.5 Coding Examples .. ...18 8.6 C Stack Frame... 19 8.7 Debug Information.. .19 9 Object Format.. .20 9.1 Introduction ... .20 9.2 ELF Header ... ..20 9.3 Sections .. .20 9.4 Symbol Table .. 21 9.5 Relocation... 10 Program Loading and Dynamic Linking ... 10.1 Introduction.. 10.2 Program Header... ..22 10.3 Program Loading ... 10.4 Dynamic Linking.... .22 III Base Libraries... 11 Libraries .. 11.1 Program Interpreter/Dynamic Linker. 11.2 Interfaces for libc. .25 11.3 Data Definitions for libc .. ..40 11.4 Interfaces for libm .... 11.5 Data Definitions for libm... ...57 11.6 Interface Definitions for libm. ...58 11.7 I