ANSI INCITS ISO IEC 23360-5-2006 Linux Standard Base (LSB) core specification 3.1 - Part 5 Specification for PPC32 architecture.pdf

1、 INCITS/ISO/IEC 23360-5:20062010 (ISO/IEC 23360-5:2006, IDT) Linux Standard Base (LSB) core specification 3.1 - Part 5: Specification for PPC32 architecture Reaffirmed as INCITS/ISO/IEC 23360-5:2006 R2015INCITS/ISO/IEC 23360-5:20062010 PDF disclaimer This PDF file may contain embedded typefaces. In

2、accordance with Adobes 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 Adob

3、es 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 parameters were optimized for

4、printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Adopted by INCITS (InterNational Committee for Information Technology

5、Standards) as an American National Standard. Date of ANSI Approval: 11/18/2010 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2010 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyri

6、ght claims of International Standardization Organization (ISO), International Electrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an el

7、ectronic retrieval system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1101 K Street NW, Suite 610, Washington DC 20005. Printed in the United States of America ii ITIC 2010 All rights reserved ISO/IEC 23360-5:2006(E) ISO/IEC 2006

8、 All rights reserved iiiLinux Standard Base Core Specification for PPC32 3.1 ISO/IEC 23360-5:2006(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 Foundatio

9、n. Portions of the text are copyrighted by the following parties: The Regents of the University of California Free Software Foundation Ian F. Darwin Paul Vixie BSDI (now Wind River) Andrew G Morgan Jean-loup Gailly and Mark Adler Massachusetts Institute of Technology These excerpts are being used in

10、 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 M

11、icro 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

12、of Silicon Graphics, Inc. ISO/IEC 23360-5:2006(E) iv ISO/IEC 2006 All rights reservedContents I Introductory Elements .0 1 Scope11.1 General11.2 Module Specific Scope12 References.22.1 Normative References 22.2 Informative References/Bibliography .43 Requirements .63.1 Relevant Libraries .63.2 LSB I

13、mplementation Conformance 63.3 LSB Application Conformance74 Definitions 95 Terminology .106 Documentation Conventions .12II Executable And Linking Format (ELF)137 Introduction148 Low Level System Information158.1 Machine Interface158.2 Function Calling Sequence.168.3 Operating System Interface .168

14、.4 Process Initialization.178.5 Coding Examples 198.6 C Stack Frame 208.7 Debug Information209 Object Format.21 9.1 Introduction .219.2 ELF Header 219.3 Sections.219.4 Symbol Table .239.5 Relocation.2310 Program Loading and Dynamic Linking .24 10.1 Introduction .2410.2 Program Header2410.3 Program L

15、oading 2410.4 Dynamic Linking.24III Base Libraries .26 11 Libraries 2711.1 Program Interpreter/Dynamic Linker.2711.2 Interfaces for libc.2711.3 Data Definitions for libc .4111.4 Interfaces for libm .5411.5 Data Definitions for libm5811.6 Interfaces for libpthread.5911.7 Data Definitions for libpthre

16、ad .6111.8 Interfaces for libgcc_s .6211.9 Data Definitions for libgcc_s6311.10 Interface Definitions for libgcc_s.6411.11 Interfaces for libdl .6911.12 Data Definitions for libdl .7011.13 Interfaces for libcrypt70Foreword vii Introduction .viii ISO/IEC 23360-5:2006(E) ISO/IEC 2006 All rights reserv

17、ed vIV Utility Libraries71 12 Libraries 7212.1 Interfaces for libz.7212.2 Data Definitions for libz .7212.3 Interfaces for libncurses7212.4 Data Definitions for libncurses7312.5 Interfaces for libutil.73V Package Format and Installation7513 Software Installation .7613.1 Package Dependencies .7613.2

18、Package Architecture Considerations 76A Alphabetical Listing of Interfaces77A.1 libgcc_s77ISO/IEC 23360-5:2006(E) vi ISO/IEC 2006 All rights reservedList of Figures 8-1 Initial Process Stack .18ISO/IEC 23360-5:2006(E) ISO/IEC 2006 All rights reserved viiForeword ISO (the International Organization f

19、or Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective o

20、rganization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information tech

21、nology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standar

22、ds adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the sub

23、ject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. International Standard ISO/IEC 23360-5 was prepared by the Free Standards Group and was adopted, under the PAS procedure, by Joint Technical Committee ISO/IEC JTC 1, Information technology

24、, Subcommittee SC 22, Programming languages, their environments and system software interfaces. ISO/IEC 23360 consists of the following parts, under the general title Linux Standard Base (LSB) core specification 3.1: Part 1: Generic specification Part 2: Specification for IA32 architecture Part 3: S

25、pecification for IA64 architecture Part 4: Specification for AMD64 architecture Part 5: Specification for PPC32 architecture Part 6: Specification for PPC64 architecture Part 7: Specification for S390 architecture Part 8: Specification for S390X architecture ISO/IEC 23360-5:2006(E) viii ISO/IEC 2006

26、 All rights reservedIntroduction The specification carries a version number of either the form x.y or x.y.z. This version number carries the following meaning: The first number (x) is the major version number. All versions with the same major version number should share binary compatibility. Any add

27、ition or deletion of a new library results in a new version number. Interfaces marked as deprecated may be removed from the specification at a major version change. The second number (y) is the minor version number. Individual interfaces may be added if all certified implementations already had that

28、 (previously undocumented) interface. Interfaces may be marked as deprecated at a minor version change. Other minor changes may be permitted at the discretion of the LSB workgroup. The third number (z), if present, is the editorial level. Only editorial changes should be included in such versions. S

29、ince this specification is a descriptive Application Binary Interface, and not a source level API specification, it is not possible to make a guarantee of 100% backward compatibility between major releases. However, it is the intent that those parts of the binary interface that are visible in the so

30、urce level API will remain backward compatible from version to version, except where a feature marked as in one release may be removed from a future release. Implementors are strongly encouraged to make use of symbol versioning to permit simultaneous support of applications conforming to different r

31、eleases of this specification. This is version 3.1 of the Linux Standard Base Core Specification. This specification is part of a family of specifications under the general title “Linux Standard Base (LSB) core specification 3.1“. Developers of applications orimplementations interested in using the

32、LSB trademark should see the Free Standards Group Certification Policy for details. deprecatedThe LSB defines a binary interface for application programs that are compiled and packaged for LSB-conforming implementations on many different hardware architectures. Since a binary specification includes

33、information specific to the computer processor architecture for which it is intended, it is not possible for a single document to specify the interface for all possible LSB-conforming implementations. Therefore, the LSB is a family of specifications, rather than a single one. This document should be

34、 used in conjunction with the documents it references. This document enumerates the system components it includes, but descriptions of those components may be included entirely or partly in this document, partly in other documents, or entirely in other reference documents. For example, the section t

35、hat describes system service routines includes a list of the system routines supported in this interface, formal declarations of the data structures they use that are visible to applications, and a pointer to the underlying referenced specification for information about the syntax and semantics of e

36、ach call. Only those routines not described in standards referenced by this document, or extensions to those standards, are described in detail. Information referenced in this way is as much a part of this document as is the information explicitly included here. I Introductory Elements 1 Scope 1.1 G

37、eneral The Linux Standard Base (LSB) defines a system interface for compiled applications and a minimal environment for support of installation scripts. Its purpose is to enable a uniform industry standard environment for high-volume applications conforming to the LSB. These specifications are compo

38、sed of two basic parts: A common specification (“LSB-generic“ or “generic LSB“), ISO/IEC 23360-1, describing those parts of the interface that remain constant across all implementations of the LSB, and an architecture-specific part (“LSB-arch“ or “archLSB“) describing the parts of the interface that

39、 vary by processor architecture. Together, the LSB-generic and the relevant architecture-specific part of ISO/IEC 23360 for a single hardware architecture provide a complete interface specification for compiled application programs on systems that share a common hardware architecture. ISO/IEC 23360-

40、1, the LSB-generic document, is used in conjunction with an architecture-specific part. Whenever a section of the LSB-generic specification is supplemented by architecture-specific information, the LSB-generic document includes a reference to the architecture part. Architecture-specific parts of ISO

41、/IEC 23360 may also contain additional information that is not referenced in the LSB-generic document. The LSB contains both a set of Application Program Interfaces (APIs) and Application Binary Interfaces (ABIs). APIs may appear in the source code of portable applications, while the compiled binary

42、 of that application may use the larger set of ABIs. A conforming implementation provides all of the ABIs listed here. The compilation system may replace (e.g. by macro definition) certain APIs with calls to one or more of the underlying binary interfaces, and may insert calls to binary interfaces a

43、s needed. The LSB is primarily a binary interface definition. Not all of the source level APIs available to applications may be contained in this specification. 1.2 Module Specific Scope This is the PPC32 architecture-specific Core part of the Linux Standard Base (LSB). It supplements the generic LS

44、B Core module with those interfaces that differ between architectures. Interfaces described in this part of ISO/IEC 23360 are mandatory except where explicitly listed otherwise. Core interfaces may be supplemented by other modules; all modules are built upon the core. 1 2006 ISO/IEC All rights reser

45、ved Linux Standard Base (LSB) core specification 3.1 ISO/IEC 23360-5:2006(E) INTERNATIONAL STANDARDPart 5: Specification for PPC32 architecture ISO/IEC 23360-5:2006(E) 2 References 2.1 Normative References The following referenced documents are indispensable for the application of this document. For

46、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Note: Where copies of a document are available on the World Wide Web, a Uniform Resource Locator (URL) is given for informative purposes only.

47、This may point to a more recent copy of the referenced specification, or may be out of date. Reference copies of specifications at the revision level indicated may be found at the Free Standards Groups Reference Specifications (http:/refspecs.freestandards.org) site. Table 2-1 Normative References N

48、ame Title URL ISO/IEC 23360-1 ISO/IEC 23360-1:2006, Linux Standard Base (LSB)core specification 3.1 Part 1: Generic Specification http:/www.linuxbase.org/spec/ Filesystem Hierarchy Standard Filesystem Hierarchy Standard (FHS) 2.3 http:/ ISO C (1999) ISO/IEC 9899: 1999, Programming Languages C ISO PO

49、SIX (2003) ISO/IEC 9945-1:2003, Information technology Portable Operating System Interface (POSIX)Part 1: Base Definitions ISO/IEC 9945-2:2003, Information technology Portable Operating System Interface (POSIX)Part 2: System Interfaces ISO/IEC 9945-3:2003, Information technology Portable Operating System Interface (POSIX)Part 3: Shell and Utilities ISO/IEC 9945-4:2003, Information technology