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markom |
/* @(#)coff.h 1.8 91/12/16 16:48:10, AMD */
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/*
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******************************************************************
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** 29K COFF Declarations **
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** **
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** **
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** This file contains the declarations required to define **
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** the COFF format as proposed for use by AMD for the 29K **
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** family of RISC microprocessors. **
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** **
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** No attempt is made here to describe in detail those portions **
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** of COFF which have not been modified or extended. Pertinent **
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** #define's and struct's are included for completeness. Those **
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** declarations are distributed in several System V headers. **
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** **
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** For a better and more complete description of COFF with **
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** general and 29K Family specific clarifications, see the **
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** AMD's "Programmer's Guide to the Common Object File Format **
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** (COFF) for the Am29000" Application Note, order number 11963.**
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** **
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** For non-29K-Family specific COFF information, consult AT&T **
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** UNIX System V Release 3, Programmer's Guide, Chapter 11 **
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** (Manual 307-225, Issue 1). **
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** **
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** **
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** Revision history: **
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** **
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** 0.01 JG - first published **
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** 0.02 JG - added relocation type R_IFAR and renumbered **
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** 0.03 RC - COFF spec now compiles without error **
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** 0.04 RC - removed R_IPAIR and R_IFAR and renumbered **
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** 0.05 RC - added R_HWORD relocation type **
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** 0.06 RC - section types **
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** changed value of STYP_BSSREG **
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** replaced STYP_RDATA and STYP_IDATA **
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** with STYP_LIT, STYP_ABS, and STYP_ENVIR **
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** - relocation types **
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** added R_IABS **
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** replaced R_IBYTE with R_BYTE and renumbered **
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** - changed comments and removed comments **
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** 0.07 RC - relocation types **
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** Added R_IHCONST to support relocation offsets **
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** for CONSTH instruction. Added commentary, **
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** and renumbered to make room for R_IHCONST, **
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** putting the (as yet unused) global reloc **
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** types at the end. **
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** - bug fix (typo) **
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** Added slash to terminate comment field on **
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** C_EXT so now C_STAT is defined. **
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** 0.08 RC - official magic numbers assigned by AT&T. **
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** 0.09 RC - support multiple address spaces by adding magic **
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** a.out header numbers SASMAGIC and MASMAGIC. **
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** 0.10 RC - No changes. Just added the comments below and **
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** corrected comments on tsize, dsize, and bsize. **
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** - All portions of the COFF file described as C **
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** structs must use Host Endian byte ordering. **
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** Files created on a machine with a byte **
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** ordering different from the host may be **
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** converted using the UNIX conv(1) command. **
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** - Assemblers and compilers must create section **
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** headers for .text, .data, and .bss (in that **
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** order) even if they are 0 length. **
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** - tsize, dsize, and bsize are the size of .text, **
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** .data, and .bss respectively. Other sections **
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** of type STYP_TEXT, STYP_DATA, and STYP_BSS **
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** are not included in the byte count. **
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** - Assemblers and compilers must create output **
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** sections to the exact byte length (and not **
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** round them up). The linker will take care **
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** of rounding. **
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** 2.1.01 - Added C_STARTOF storage class for support of **
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** assembler $startof(sect_name) and **
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** $sizeof(sect_name) operators. **
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** 2.1.02 - Added a few more defines for completeness. **
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** 2.1.03 - Added more magic numbers for completeness. **
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******************************************************************
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*/
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/*
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** Overall structure of a COFF file
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*/
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/*
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*--------------------------------*
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| File Header |
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----------------------------------
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| Optional Information |
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----------------------------------
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| Section 1 Header |
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----------------------------------
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| ... |
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----------------------------------
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| Section n Header |
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----------------------------------
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| Raw Data for Section 1 |
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----------------------------------
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| ... |
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----------------------------------
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| Raw Data for Section n |
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----------------------------------
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| Relocation Info for Section 1 |
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----------------------------------
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| ... |
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----------------------------------
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| Relocation Info for Section n |
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----------------------------------
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| Line Numbers for Section 1 |
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----------------------------------
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| ... |
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----------------------------------
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| Line Numbers for Section n |
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----------------------------------
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| Symbol Table |
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----------------------------------
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| String Table |
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*--------------------------------*
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*/
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/****************************************************************/
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/*
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** File Header and related definitions
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*/
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struct filehdr
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{
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unsigned short f_magic; /* magic number */
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unsigned short f_nscns; /* number of sections */
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long f_timdat; /* time & date stamp */
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long f_symptr; /* file pointer to symtab */
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long f_nsyms; /* number of symtab entries */
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unsigned short f_opthdr; /* sizeof(optional hdr) */
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unsigned short f_flags; /* flags */
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};
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#define FILHDR struct filehdr
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#define FILHSZ sizeof (FILHDR)
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
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/*
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** Magic numbers currently known to us,
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** Plus 29K magic numbers assigned by AT&T.
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*/
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#define M68MAGIC 0210
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#define M68TVMAGIC 0211
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#define B16MAGIC 0502
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#define BTVMAGIC 0503
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#define IAPX16 0504
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#define IAPX16TV 0505
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#define IAPX20 0506
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#define IAPX20TV 0507
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#define X86MAGIC 0510
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#define XTVMAGIC 0511
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#define I286SMAGIC 0512
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#define I386MAGIC 0514
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#define MC68MAGIC 0520
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#define MC68KWRMAGIC 0520 /* 68K writeable text sections */
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#define MC68TVMAGIC 0521
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#define MC68KPGMAGIC 0522 /* 68K demand paged text (shared with i286) */
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#define I286LMAGIC 0522 /* i286 (shared with 68K) */
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/* 0524 * reserved for NSC */
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/* 0525 * reserved for NSC */
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/* 0544 * reserved for Zilog */
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/* 0545 * reserved for Zilog */
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#define N3BMAGIC 0550 /* 3B20S executable, no TV */
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#define NTVMAGIC 0551 /* 3B20 executable with TV */
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#define FBOMAGIC 0560 /* WE*-32 (Forward Byte Ordering) */
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#define WE32MAGIC 0560 /* WE 32000, no TV */
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#define MTVMAGIC 0561 /* WE 32000 with TV */
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#define RBOMAGIC 0562 /* WE-32 (Reverse Byte Ordering) */
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#define VAXWRMAGIC 0570 /* VAX-11/750 and VAX-11/780 */
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/* (writable text sections) */
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#define VAXROMAGIC 0575 /* VAX-11/750 and VAX-11780 */
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/* (read-only text sections) */
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#define U370WRMAGIC 0530 /* IBM 370 (writable text sections) */
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#define AMDWRMAGIC 0531 /* Amdahl 470/580 writable text sections */
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#define AMDROMAGIC 0534 /* Amdahl 470/580 read only sharable text */
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#define U370ROMAGIC 0535 /* IBM 370 (read-only sharable text sections) */
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#define SIPFBOMAGIC 0572 /* 29K Family (Byte 0 is MSB - Big Endian) */
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#define SIPRBOMAGIC 0573 /* 29K Family (Byte 0 is LSB - Little Endian) */
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
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/*
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** File header flags currently known to us.
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**
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** Am29000 will use the F_AR32WR and F_AR32W flags to indicate
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** the byte ordering in the file.
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*/
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#define F_RELFLG 00001 /* Relocation information stripped */
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/* from the file. */
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#define F_EXEC 00002 /* File is executable (i.e. no */
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/* unresolved external references). */
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#define F_LNNO 00004 /* Line numbers stripped from */
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/* the file. */
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#define F_LSYMS 00010 /* Local symbols stripped from */
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/* the file. */
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#define F_MINMAL 00020 /* Not used by UNIX. */
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#define F_UPDATE 00040 /* Not used by UNIX. */
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#define F_SWABD 00100 /* Not used by UNIX. */
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#define F_AR16WR 00200 /* File has the byte ordering used */
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/* by the PDP*-11/70 processor. */
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#define F_AR32WR 00400 /* File has 32 bits per word, */
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/* least significant byte first. */
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#define F_AR32W 01000 /* File has 32 bits per word, */
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/* most significant byte first. */
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#define F_PATCH 02000 /* Not used by UNIX. */
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#define F_BM32BRST 0010000 /* 32100 required; has RESTORE work-around. */
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#define F_BM32B 0020000 /* 32100 required. */
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#define F_BM32MAU 0040000 /* MAU required. */
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#define F_BM32ID 0160000 /* WE 32000 processor ID field. */
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/*--------------------------------------------------------------*/
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/*
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** Optional (a.out) header
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*/
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typedef struct aouthdr
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{
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short magic; /* magic number */
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short vstamp; /* version stamp */
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long tsize; /* size of .text in bytes */
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long dsize; /* size of .data (initialized data) */
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| 230 |
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long bsize; /* size of .bss (uninitialized data) */
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long entry; /* entry point */
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long text_start; /* base of text used for this file */
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long data_start; /* base of data used for this file */
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} AOUTHDR;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
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| 238 |
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/*
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| 239 |
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** Magic a.out header numbers for cross development (non-UNIX),
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** support of separate I and D address spaces.
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*/
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#define SASMAGIC 010000 /* Single Address Space */
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#define MASMAGIC 020000 /* Multiple (separate I & D) Address Spaces */
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| 246 |
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/*--------------------------------------------------------------*/
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| 247 |
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| 248 |
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/*
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| 249 |
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** Section header and related definitions
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| 250 |
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*/
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| 251 |
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| 252 |
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struct scnhdr
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| 253 |
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{
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| 254 |
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char s_name[8]; /* section name */
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| 255 |
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long s_paddr; /* physical address */
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| 256 |
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long s_vaddr; /* virtual address */
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| 257 |
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long s_size; /* section size */
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| 258 |
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long s_scnptr; /* file ptr to raw data for section */
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| 259 |
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long s_relptr; /* file ptr to relocation */
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| 260 |
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long s_lnnoptr; /* file ptr to line numbers */
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| 261 |
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unsigned short s_nreloc; /* number of relocation entries */
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| 262 |
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unsigned short s_nlnno; /* number of line number entries */
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| 263 |
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long s_flags; /* flags */
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};
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#define SCNHDR struct scnhdr
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#define SCNHSZ sizeof (SCNHDR)
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| 269 |
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
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| 270 |
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| 271 |
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/*
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| 272 |
|
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** Section types - with additional section type for global
|
| 273 |
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** registers which will be relocatable for the Am29000.
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| 274 |
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**
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| 275 |
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** In instances where it is necessary for a linker to produce an
|
| 276 |
|
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** output file which contains text or data not based at virtual
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| 277 |
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** address 0, e.g. for a ROM, then the linker should accept
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| 278 |
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** address base information as command input and use PAD sections
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| 279 |
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** to skip over unused addresses.
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| 280 |
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*/
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| 281 |
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| 282 |
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#define STYP_REG 0x00 /* Regular section (allocated, */
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| 283 |
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/* relocated, loaded) */
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| 284 |
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#define STYP_DSECT 0x01 /* Dummy section (not allocated, */
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| 285 |
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/* relocated, not loaded) */
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| 286 |
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#define STYP_NOLOAD 0x02 /* Noload section (allocated, */
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| 287 |
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/* relocated, not loaded) */
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| 288 |
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#define STYP_GROUP 0x04 /* Grouped section (formed from */
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| 289 |
|
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/* input sections) */
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| 290 |
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#define STYP_PAD 0x08 /* Padded section (not allocated, */
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| 291 |
|
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/* not relocated, loaded) */
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| 292 |
|
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#define STYP_COPY 0x10 /* Copy section (for a decision */
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| 293 |
|
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/* function used in updating fields; */
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| 294 |
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/* not allocated, not relocated, */
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| 295 |
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/* loaded, relocation and line */
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| 296 |
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/* number entries processed */
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| 297 |
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/* normally) */
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| 298 |
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#define STYP_TEXT 0x20 /* Section contains executable text */
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| 299 |
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#define STYP_DATA 0x40 /* Section contains initialized data */
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| 300 |
|
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#define STYP_BSS 0x80 /* Section contains only uninitialized data */
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| 301 |
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#define STYP_INFO 0x200 /* Comment section (not allocated, */
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| 302 |
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/* not relocated, not loaded) */
|
| 303 |
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#define STYP_OVER 0x400 /* Overlay section (relocated, */
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| 304 |
|
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/* not allocated, not loaded) */
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| 305 |
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#define STYP_LIB 0x800 /* For .lib section (like STYP_INFO) */
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| 306 |
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| 307 |
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#define STYP_BSSREG 0x1200 /* Global register area (like STYP_INFO) */
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| 308 |
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#define STYP_ENVIR 0x2200 /* Environment (like STYP_INFO) */
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| 309 |
|
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#define STYP_ABS 0x4000 /* Absolute (allocated, not reloc, loaded) */
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| 310 |
|
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#define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */
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| 311 |
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|
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| 312 |
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/*
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| 313 |
|
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NOTE: The use of STYP_BSSREG for relocation is not yet defined.
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| 314 |
|
|
*/
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| 315 |
|
|
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| 316 |
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|
/*--------------------------------------------------------------*/
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| 317 |
|
|
|
| 318 |
|
|
/*
|
| 319 |
|
|
** Relocation information declaration and related definitions
|
| 320 |
|
|
*/
|
| 321 |
|
|
|
| 322 |
|
|
struct reloc
|
| 323 |
|
|
{
|
| 324 |
|
|
long r_vaddr; /* (virtual) address of reference */
|
| 325 |
|
|
long r_symndx; /* index into symbol table */
|
| 326 |
|
|
unsigned short r_type; /* relocation type */
|
| 327 |
|
|
};
|
| 328 |
|
|
|
| 329 |
|
|
#define RELOC struct reloc
|
| 330 |
|
|
#define RELSZ 10 /* sizeof (RELOC) */
|
| 331 |
|
|
|
| 332 |
|
|
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
|
| 333 |
|
|
|
| 334 |
|
|
/*
|
| 335 |
|
|
** Relocation types for the Am29000
|
| 336 |
|
|
*/
|
| 337 |
|
|
|
| 338 |
|
|
#define R_ABS 0 /* reference is absolute */
|
| 339 |
|
|
|
| 340 |
|
|
#define R_IREL 030 /* instruction relative (jmp/call) */
|
| 341 |
|
|
#define R_IABS 031 /* instruction absolute (jmp/call) */
|
| 342 |
|
|
#define R_ILOHALF 032 /* instruction low half (const) */
|
| 343 |
|
|
#define R_IHIHALF 033 /* instruction high half (consth) part 1 */
|
| 344 |
|
|
#define R_IHCONST 034 /* instruction high half (consth) part 2 */
|
| 345 |
|
|
/* constant offset of R_IHIHALF relocation */
|
| 346 |
|
|
#define R_BYTE 035 /* relocatable byte value */
|
| 347 |
|
|
#define R_HWORD 036 /* relocatable halfword value */
|
| 348 |
|
|
#define R_WORD 037 /* relocatable word value */
|
| 349 |
|
|
|
| 350 |
|
|
#define R_IGLBLRC 040 /* instruction global register RC */
|
| 351 |
|
|
#define R_IGLBLRA 041 /* instruction global register RA */
|
| 352 |
|
|
#define R_IGLBLRB 042 /* instruction global register RB */
|
| 353 |
|
|
|
| 354 |
|
|
/*
|
| 355 |
|
|
NOTE:
|
| 356 |
|
|
All the "I" forms refer to Am29000 instruction formats. The linker is
|
| 357 |
|
|
expected to know how the numeric information is split and/or aligned
|
| 358 |
|
|
within the instruction word(s). R_BYTE works for instructions, too.
|
| 359 |
|
|
|
| 360 |
|
|
If the parameter to a CONSTH instruction is a relocatable type, two
|
| 361 |
|
|
relocation records are written. The first has an r_type of R_IHIHALF
|
| 362 |
|
|
(33 octal) and a normal r_vaddr and r_symndx. The second relocation
|
| 363 |
|
|
record has an r_type of R_IHCONST (34 octal), a normal r_vaddr (which
|
| 364 |
|
|
is redundant), and an r_symndx containing the 32-bit constant offset
|
| 365 |
|
|
to the relocation instead of the actual symbol table index. This
|
| 366 |
|
|
second record is always written, even if the constant offset is zero.
|
| 367 |
|
|
The constant fields of the instruction are set to zero.
|
| 368 |
|
|
*/
|
| 369 |
|
|
|
| 370 |
|
|
/*--------------------------------------------------------------*/
|
| 371 |
|
|
|
| 372 |
|
|
/*
|
| 373 |
|
|
** Line number entry declaration and related definitions
|
| 374 |
|
|
*/
|
| 375 |
|
|
|
| 376 |
|
|
struct lineno
|
| 377 |
|
|
{
|
| 378 |
|
|
union
|
| 379 |
|
|
{
|
| 380 |
|
|
long l_symndx; /* sym table index of function name */
|
| 381 |
|
|
long l_paddr; /* (physical) address of line number */
|
| 382 |
|
|
} l_addr;
|
| 383 |
|
|
unsigned short l_lnno; /* line number */
|
| 384 |
|
|
};
|
| 385 |
|
|
|
| 386 |
|
|
#define LINENO struct lineno
|
| 387 |
|
|
#define LINESZ 6 /* sizeof (LINENO) */
|
| 388 |
|
|
|
| 389 |
|
|
/*--------------------------------------------------------------*/
|
| 390 |
|
|
|
| 391 |
|
|
/*
|
| 392 |
|
|
** Symbol entry declaration and related definitions
|
| 393 |
|
|
*/
|
| 394 |
|
|
|
| 395 |
|
|
#define SYMNMLEN 8 /* Number of characters in a symbol name */
|
| 396 |
|
|
|
| 397 |
|
|
struct syment
|
| 398 |
|
|
{
|
| 399 |
|
|
union
|
| 400 |
|
|
{
|
| 401 |
|
|
char _n_name [SYMNMLEN]; /* symbol name */
|
| 402 |
|
|
struct
|
| 403 |
|
|
{
|
| 404 |
|
|
long _n_zeroes; /* symbol name */
|
| 405 |
|
|
long _n_offset; /* offset into string table */
|
| 406 |
|
|
} _n_n;
|
| 407 |
|
|
char *_n_nptr[2]; /* allows for overlaying */
|
| 408 |
|
|
} _n;
|
| 409 |
|
|
#ifndef pdp11
|
| 410 |
|
|
unsigned
|
| 411 |
|
|
#endif
|
| 412 |
|
|
long n_value; /* value of symbol */
|
| 413 |
|
|
short n_scnum; /* section number */
|
| 414 |
|
|
unsigned short n_type; /* type and derived type */
|
| 415 |
|
|
char n_sclass; /* storage class */
|
| 416 |
|
|
char n_numaux; /* number of aux entries */
|
| 417 |
|
|
};
|
| 418 |
|
|
|
| 419 |
|
|
#define n_name _n._n_name
|
| 420 |
|
|
#define n_nptr _n._n_nptr[1]
|
| 421 |
|
|
#define n_zeroes _n._n_n._n_zeroes
|
| 422 |
|
|
#define n_offset _n._n_n._n_offset
|
| 423 |
|
|
|
| 424 |
|
|
#define SYMENT struct syment
|
| 425 |
|
|
#define SYMESZ 18
|
| 426 |
|
|
|
| 427 |
|
|
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
|
| 428 |
|
|
|
| 429 |
|
|
/*
|
| 430 |
|
|
** Storage class definitions - new classes for global registers.
|
| 431 |
|
|
*/
|
| 432 |
|
|
|
| 433 |
|
|
#define C_EFCN -1 /* physical end of a function */
|
| 434 |
|
|
#define C_NULL 0 /* - */
|
| 435 |
|
|
#define C_AUTO 1 /* automatic variable */
|
| 436 |
|
|
#define C_EXT 2 /* external symbol */
|
| 437 |
|
|
#define C_STAT 3 /* static */
|
| 438 |
|
|
#define C_REG 4 /* (local) register variable */
|
| 439 |
|
|
#define C_EXTDEF 5 /* external definition */
|
| 440 |
|
|
#define C_LABEL 6 /* label */
|
| 441 |
|
|
#define C_ULABEL 7 /* undefined label */
|
| 442 |
|
|
#define C_MOS 8 /* member of structure */
|
| 443 |
|
|
#define C_ARG 9 /* function argument */
|
| 444 |
|
|
#define C_STRTAG 10 /* structure tag */
|
| 445 |
|
|
#define C_MOU 11 /* member of union */
|
| 446 |
|
|
#define C_UNTAG 12 /* union tag */
|
| 447 |
|
|
#define C_TPDEF 13 /* type definition */
|
| 448 |
|
|
#define C_UNSTATIC 14 /* uninitialized static */
|
| 449 |
|
|
#define C_USTATIC 14 /* uninitialized static */
|
| 450 |
|
|
#define C_ENTAG 15 /* enumeration tag */
|
| 451 |
|
|
#define C_MOE 16 /* member of enumeration */
|
| 452 |
|
|
#define C_REGPARM 17 /* register parameter */
|
| 453 |
|
|
#define C_FIELD 18 /* bit field */
|
| 454 |
|
|
|
| 455 |
|
|
#define C_GLBLREG 19 /* global register */
|
| 456 |
|
|
#define C_EXTREG 20 /* external global register */
|
| 457 |
|
|
#define C_DEFREG 21 /* ext. def. of global register */
|
| 458 |
|
|
#define C_STARTOF 22 /* as29 $SIZEOF and $STARTOF symbols */
|
| 459 |
|
|
|
| 460 |
|
|
|
| 461 |
|
|
#define C_BLOCK 100 /* beginning and end of block */
|
| 462 |
|
|
#define C_FCN 101 /* beginning and end of function */
|
| 463 |
|
|
#define C_EOS 102 /* end of structure */
|
| 464 |
|
|
#define C_FILE 103 /* file name */
|
| 465 |
|
|
#define C_LINE 104 /* used only by utility programs */
|
| 466 |
|
|
#define C_ALIAS 105 /* duplicated tag */
|
| 467 |
|
|
#define C_HIDDEN 106 /* like static, used to avoid name */
|
| 468 |
|
|
/* conflicts */
|
| 469 |
|
|
#define C_SHADOW 107 /* shadow symbol */
|
| 470 |
|
|
|
| 471 |
|
|
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
|
| 472 |
|
|
|
| 473 |
|
|
/*
|
| 474 |
|
|
** Special section number definitions used in symbol entries.
|
| 475 |
|
|
** (Section numbers 1-65535 are used to indicate the section
|
| 476 |
|
|
** where the symbol was defined.)
|
| 477 |
|
|
*/
|
| 478 |
|
|
|
| 479 |
|
|
#define N_DEBUG -2 /* special symbolic debugging symbol */
|
| 480 |
|
|
#define N_ABS -1 /* absolute symbol */
|
| 481 |
|
|
#define N_UNDEF 0 /* undefined external symbol */
|
| 482 |
|
|
#define N_SCNUM 1-65535 /* section num where symbol defined */
|
| 483 |
|
|
|
| 484 |
|
|
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
|
| 485 |
|
|
|
| 486 |
|
|
/*
|
| 487 |
|
|
** Fundamental symbol types.
|
| 488 |
|
|
*/
|
| 489 |
|
|
|
| 490 |
|
|
#define T_NULL 0 /* type not assigned */
|
| 491 |
|
|
#define T_VOID 1 /* void */
|
| 492 |
|
|
#define T_CHAR 2 /* character */
|
| 493 |
|
|
#define T_SHORT 3 /* short integer */
|
| 494 |
|
|
#define T_INT 4 /* integer */
|
| 495 |
|
|
#define T_LONG 5 /* long integer */
|
| 496 |
|
|
#define T_FLOAT 6 /* floating point */
|
| 497 |
|
|
#define T_DOUBLE 7 /* double word */
|
| 498 |
|
|
#define T_STRUCT 8 /* structure */
|
| 499 |
|
|
#define T_UNION 9 /* union */
|
| 500 |
|
|
#define T_ENUM 10 /* enumeration */
|
| 501 |
|
|
#define T_MOE 11 /* member of enumeration */
|
| 502 |
|
|
#define T_UCHAR 12 /* unsigned character */
|
| 503 |
|
|
#define T_USHORT 13 /* unsigned short */
|
| 504 |
|
|
#define T_UINT 14 /* unsigned integer */
|
| 505 |
|
|
#define T_ULONG 15 /* unsigned long */
|
| 506 |
|
|
|
| 507 |
|
|
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
|
| 508 |
|
|
|
| 509 |
|
|
/*
|
| 510 |
|
|
** Derived symbol types.
|
| 511 |
|
|
*/
|
| 512 |
|
|
|
| 513 |
|
|
#define DT_NON 0 /* no derived type */
|
| 514 |
|
|
#define DT_PTR 1 /* pointer */
|
| 515 |
|
|
#define DT_FCN 2 /* function */
|
| 516 |
|
|
#define DT_ARY 3 /* array */
|
| 517 |
|
|
|
| 518 |
|
|
/*--------------------------------------------------------------*/
|
| 519 |
|
|
|
| 520 |
|
|
/*
|
| 521 |
|
|
** Auxiliary symbol table entry declaration and related
|
| 522 |
|
|
** definitions.
|
| 523 |
|
|
*/
|
| 524 |
|
|
|
| 525 |
|
|
#define FILNMLEN 14 /* Number of characters in a file name */
|
| 526 |
|
|
#define DIMNUM 4 /* Number of array dimensions in auxiliary entry */
|
| 527 |
|
|
|
| 528 |
|
|
union auxent
|
| 529 |
|
|
{
|
| 530 |
|
|
struct
|
| 531 |
|
|
{
|
| 532 |
|
|
long x_tagndx; /* str, un, or enum tag indx */
|
| 533 |
|
|
union
|
| 534 |
|
|
{
|
| 535 |
|
|
struct
|
| 536 |
|
|
{
|
| 537 |
|
|
unsigned short x_lnno; /* declaration line number */
|
| 538 |
|
|
unsigned short x_size; /* str, union, array size */
|
| 539 |
|
|
} x_lnsz;
|
| 540 |
|
|
long x_size; /* size of functions */
|
| 541 |
|
|
} x_misc;
|
| 542 |
|
|
union
|
| 543 |
|
|
{
|
| 544 |
|
|
struct /* if ISFCN, tag, or .bb */
|
| 545 |
|
|
{
|
| 546 |
|
|
long x_lnnoptr; /* ptr to fcn line # */
|
| 547 |
|
|
long x_endndx; /* entry ndx past block end */
|
| 548 |
|
|
} x_fcn;
|
| 549 |
|
|
struct /* if ISARY, up to 4 dimen */
|
| 550 |
|
|
{
|
| 551 |
|
|
unsigned short x_dimen[DIMNUM];
|
| 552 |
|
|
} x_ary;
|
| 553 |
|
|
} x_fcnary;
|
| 554 |
|
|
unsigned short x_tvndx; /* tv index */
|
| 555 |
|
|
} x_sym;
|
| 556 |
|
|
struct
|
| 557 |
|
|
{
|
| 558 |
|
|
char x_fname[FILNMLEN];
|
| 559 |
|
|
} x_file;
|
| 560 |
|
|
struct
|
| 561 |
|
|
{
|
| 562 |
|
|
long x_scnlen; /* section length */
|
| 563 |
|
|
unsigned short x_nreloc; /* number of relocation entries */
|
| 564 |
|
|
unsigned short x_nlinno; /* number of line numbers */
|
| 565 |
|
|
} x_scn;
|
| 566 |
|
|
struct
|
| 567 |
|
|
{
|
| 568 |
|
|
long x_tvfill; /* tv fill value */
|
| 569 |
|
|
unsigned short x_tvlen; /* length of tv */
|
| 570 |
|
|
unsigned short x_tvrna[2]; /* tv range */
|
| 571 |
|
|
} x_tv; /* info about tv section (in auxent of symbol tv)) */
|
| 572 |
|
|
};
|
| 573 |
|
|
|
| 574 |
|
|
#define AUXENT union auxent
|
| 575 |
|
|
#define AUXESZ 18 /* sizeof(AUXENT) */
|
| 576 |
|
|
|
