Full Generic System V ABI

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37 | t t y 37 | A T & T m o d e l 37 t e l e t y p e ,h c , o s , x o n ,b e l = ˆ G , c r = \ r , c u b 1 = \ b , c u d 1 = \ n , c u u 1 = \ E 7 , h d = \ E 9 ,h u = \ E 8 , i n d = \ n ,0000 000 032 001 \ 0 032 \ 0 013 \ 0 021 001 3 \ 0 3 7 | t0000 020 t y 3 7 | A T & T m o d e l0000 040 3 7 t e l e t y p e \ 0 \ 0 \ 0 \ 0 \ 00000 060 \ 0 \ 0 \ 0 001 \ 0 \ 0 \ 0 \ 0 \ 0 \ 0 \ 0 001 \ 0 \ 0 \ 0 \ 00000 100 001 \ 0 \ 0 \ 0 \ 0 \ 0 377 377 377 377 377 377 377 377 377 3770000 120 377 377 377 377 377 377 377 377 377 377 377 377 377 377 & \ 00000 140 \ 0 377 377 377 377 377 377 377 377 377 377 377 377 377 3770000 160 377 377 " \ 0 377 377 377 377 ( \ 0 377 377 377 377 377 3770000 200 377 377 0 \ 0 377 377 377 377 377 377 377 377 - \ 0 377 3770000 220 377 377 377 377 377 377 377 377 377 377 377 377 377 377 377 377*0000 520 377 377 377 377 377 377 377 377 377 377 377 377 377 377 $ \ 00000 540 377 377 377 377 377 377 377 377 377 377 377 377 377 377 * \ 00000 560 377 377 377 377 377 377 377 377 377 377 377 377 377 377 377 377*0001 160 377 377 377 377 377 377 377 377 377 377 377 377 377 377 3 70001 200 | t t y 3 7 | A T & T m o d e0001 220 l 3 7 t e l e t y p e \ 0 \ r \ 00001 240 \ n \ 0 \ n \ 0 007 \ 0 \ b \ 0 033 8 \ 0 033 9 \ 0 033 70001 260 \ 0 \ 00001 261Some limitations: total compiled entries cannot exceed 4096 bytes and all entries inthe name field cannot exceed 128 bytes.Terminfo Data Base 7-9
Formats and Protocols for NetworkingThis section describes a language for machine-independent data representationand two protocols used in remote procedure call service. All ABI-conforming systemsthat provide these services must implement these formats and protocols inthe appropriate routines in the l i b n s l library. See Chapter 6 of the System V ABIfor a list of the routines in this library.XDR: External Data RepresentationXDR is a method for the description and encoding of data. It is useful for transferringdata between different computer architectures, where such characteristics asinternal byte-ordering may vary.XDR uses a language to describe data formats. This language allows one todescribe intricate data formats in a concise manner.The XDR language assumes that bytes (or octets) are portable, where a byte isdefined to be 8 bits of data. A given hardware device should encode the bytesonto the various media in such a way that other hardware devices may decode thebytes without loss of meaning.Basic Block SizeThe representation of all items requires a multiple of four bytes (or 32 bits) of data.The bytes are numbered 0 through n-1. The bytes are read or written to some bytestream such that byte m always precedes byte m+1. If the n bytes needed to containthe data are not a multiple of four, then the n bytes are followed by enough (0to 3) residual zero bytes, r, to make the total byte count a multiple of 4.The familiar graphic box notation has been used for illustration and comparison.In most illustrations, each box (delimited by a plus sign at the 4 corners and verticalbars and dashes) depicts a byte. Ellipses (. . .) between boxes show zero ormore additional bytes where required.A Block+ - - - - - - - - + - - - - - - - - + . . . + - - - - - - - - + - - - - - - - - + . . . + - - - - - - - - +| b y t e 0 | b y t e 1 | . . . | b y t e n - 1 | 0 | . . . | 0 |+ - - - - - - - - + - - - - - - - - + . . . + - - - - - - - - + - - - - - - - - + . . . + - - - - - - - - +| < - - - - - - - - - - - n b y t e s - - - - - - - - - - > | < - - - - - - r b y t e s - - - - - - > || < - - - - - - - - - - - n + r ( w h e r e ( n + r ) m o d 4 = 0 ) > - - - - - - - - - - - > |7-10 FORMATS AND PROTOCOLS
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SYSTEM VAPPLICATION BINARY INTERFAC
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LOW-LEVEL SYSTEM INFORMATION3Introd
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INIndexIndexIN-1ivTable of Contents
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1 INTRODUCTIONSystem V Application
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Foundations and Structure of the AB
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How to Use the System V ABIThe comp
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6 . The system’s compilation syst
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Definitions of TermsThe following t
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2SOFTWARE INSTALLATIONSoftware Inst
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Software Structure of the Physical
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Figure 2-2: Data Stream File Layout
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A special new-line terminated chara
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P S T A M P: Production stamp, limi
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major: The major device number, app
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NOTESince substantive differences e
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1: fatal error2: warning3: interrup
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Commands That Install, Remove and A
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IntroductionThis chapter defines lo
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Machine Interface (Processor-Specif
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Operating System Interface (Process
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4OBJECT FILESIntroduction 4-1File F
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Figure 4-1: Object File Format_____
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ELF HeaderSome object file control
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e _ v e r s i o ne _ e n t r ye _ p
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E I _ C L A S SE I _ D A T AThe nex
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SectionsAn object file’s section
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Figure 4-8: Section Headert y p e d
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S H T _ N U L LThis value marks the
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A section header’s s h _ f l a g
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Figure 4-13: Special Sections (cont
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. s h s t r t a b This section hold
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Symbol TableAn object file’s symb
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S T B _ W E A K Weak symbols resemb
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As mentioned above, the symbol tabl
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# d e f i n e E L F 32 _ R _ S Y M
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5PROGRAM LOADING ANDDYNAMIC LINKING
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Program HeaderAn executable or shar
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P T _ D Y N A M I CP T _ I N T E R
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Figure 5-3: Segment Flag Bits, p _
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depending on the processor. See ‘
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NOTENote information is optional. T
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Dynamic LinkingProgram InterpreterA
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Because every ABI-conforming progra
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Figure 5-10: Dynamic Array Tags, d
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D T _ R P A T HD T _ S Y M B O L I
Page 92 and 93: If a shared object name has one or
Page 94 and 95: oth the symbol table and the chain
Page 96 and 97: 6 LIBRARIESIntroduction 6-1Shared L
Page 98 and 99: IntroductionEvery ABI-conforming sy
Page 100 and 101: Dependencies Among LibrariesInter-l
Page 102 and 103: Figure 6-2: l i b s y s Contents, N
Page 104 and 105: NOTEBecause the ABI specifies neith
Page 106 and 107: _nameThis gives a system service na
Page 108 and 109: Figure 6-7: l i b c Contents from X
Page 110 and 111: i n t _ _ f l s b u f ( i n t x , F
Page 112 and 113: Network Services LibraryThe Network
Page 114 and 115: Figure 6-14: l i b n s l Contents,
Page 116 and 117: Curses LibraryThe curses library, l
Page 118 and 119: Figure 6-19: l i b c u r s e s Cont
Page 120 and 121: X Window System LibraryThe X Window
Page 122 and 123: Figure 6-21: l i b X Contents (cont
Page 124 and 125: Figure 6-21: l i b X Contents (cont
Page 126 and 127: X Toolkit Intrinsics LibraryGThe X
Page 128 and 129: Figure 6-23: l i b X t Contents (co
Page 130 and 131: System Data InterfacesStandard head
Page 132 and 133: 7FORMATS AND PROTOCOLSIntroduction
Page 134 and 135: IntroductionThis chapter describes
Page 136 and 137: a r _ d a t ea r _ u i da r _ g i d
Page 138 and 139: As an example, the following symbol
Page 140 and 141: Terminfo Data BaseEach terminal’s
Page 144 and 145: XDR Data TypesEach of the sections
Page 146 and 147: Single-Precision Floating-Point+ --
Page 148 and 149: Byte m of the sequence always prece
Page 150 and 151: Variable-length ArrayCounted arrays
Page 152 and 153: VoidAn XDR void is a 0-byte quantit
Page 154 and 155: Optional-data is not so interesting
Page 156 and 157: Because of transport independence,
Page 158 and 159: 5 . The parameters to the remote pr
Page 160 and 161: The RPC Message ProtocolThis sectio
Page 162 and 163: ** Body of a reply to an RPC reques
Page 164 and 165: ⎜⎜c h a r * a u p _ m a c h n a
Page 166 and 167: The client too must check the verif
Page 168 and 169: * a d v _ w i n v e r f ; -- one ha
Page 170 and 171: pcbind MechanismAn r p c b i n d me
Page 172 and 173: The parameters and the argument poi
Page 174 and 175: Commands for Application ProgramsPr
Page 176 and 177: 9EXECUTION ENVIRONMENTApplication E
Page 178 and 179: Per-process environment information
Page 180 and 181: The root directory of the file syst
Page 182 and 183: u s r / X / l i b / a p p - d e f a
Page 184 and 185: The System V Window SystemNOTEThis
Page 186 and 187: System V Window System ComponentsTh
Page 188 and 189: 11DEVELOPMENT ENVIRONMENTSFOR AN AB
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Static ArchivesFrequently applicati
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t_rcv 12-12t_rcvconnect 12-12t_rcvu
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Required STREAMS Devices and Module
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Required Transport Layer SupportA t
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Figure 12-9: XTI values for t_info
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Optional Internet Transport Support
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t_optmgmtTLIUnder TLI the following
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Figure 12-14: IP OptionsX__________
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IN IndexIndexIN-1Table of Contentsi
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a u t h d e s _ f u l l n a m e 7:
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d e l _ c u r t e r m 6: 22d e l e
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f t o k 6: 5f t r u n c a t e 6: 12
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installation mediafile formats 2: 1
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m k s t e m p 6: 12m k t e m p 6: 1
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format 4: 1hash table 5: 13, 17, 21
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e p l y _ s t a t 7: 27required siz
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s i g s e n d 6: 5s i g s e n d s e
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T _ C O N N E C T 1 12: 5T _ C O N
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u n a m e 6: 6, 9: 1u n c t r l 6:
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w r i t e 6: 5, 18w r i t e v 6: 5w
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X D e f a u l t V i s u a l 6: 27X
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X G e t G e o m e t r y 6: 27X G e
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X r m P u t L i n e R e s o u r c e
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X t C v t I n t T o P i x e l 6: 31
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X t S t r i n g s 6: 32X t S u p e
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Full Generic System V ABI

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