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[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [include/] [coff/] [sparc.h] - Blame information for rev 106

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1 106 markom
/*** coff information for Sparc.  */
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/* This file is an amalgamation of several standard include files that
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   define coff format, such as filehdr.h, aouthdr.h, and so forth.  In
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   addition, all datatypes have been translated into character arrays of
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   (presumed) equivalent size.  This is necessary so that this file can
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   be used with different systems while still yielding the same results.  */
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/********************** FILE HEADER **********************/
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struct external_filehdr
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{
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  char f_magic[2];              /* magic number                 */
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  char f_nscns[2];              /* number of sections           */
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  char f_timdat[4];             /* time & date stamp            */
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  char f_symptr[4];             /* file pointer to symtab       */
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  char f_nsyms[4];              /* number of symtab entries     */
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  char f_opthdr[2];             /* sizeof(optional hdr)         */
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  char f_flags[2];              /* flags                        */
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};
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#define F_RELFLG        (0x0001)        /* relocation info stripped */
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#define F_EXEC          (0x0002)        /* file is executable */
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#define F_LNNO          (0x0004)        /* line numbers stripped */
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#define F_LSYMS         (0x0008)        /* local symbols stripped */
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#define SPARCMAGIC      (0540)
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/* This is Lynx's all-platform magic number for executables. */
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#define LYNXCOFFMAGIC   (0415)
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#define FILHDR  struct external_filehdr
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#define FILHSZ  20
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/********************** AOUT "OPTIONAL HEADER" **********************/
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typedef struct
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{
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  char magic[2];                /* type of file                         */
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  char vstamp[2];               /* version stamp                        */
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  char tsize[4];                /* text size in bytes, padded to FW bdry*/
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  char dsize[4];                /* initialized data "  "                */
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  char bsize[4];                /* uninitialized data "   "             */
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  char entry[4];                /* entry pt.                            */
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  char text_start[4];           /* base of text used for this file */
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  char data_start[4];           /* base of data used for this file */
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}
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AOUTHDR;
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#define AOUTSZ 28
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#define AOUTHDRSZ 28
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#define OMAGIC          0404    /* object files, eg as output */
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#define ZMAGIC          0413    /* demand load format, eg normal ld output */
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#define STMAGIC         0401    /* target shlib */
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#define SHMAGIC         0443    /* host   shlib */
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/********************** SECTION HEADER **********************/
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struct external_scnhdr
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{
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  char s_name[8];               /* section name                 */
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  char s_paddr[4];              /* physical address, aliased s_nlib */
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  char s_vaddr[4];              /* virtual address              */
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  char s_size[4];               /* section size                 */
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  char s_scnptr[4];             /* file ptr to raw data for section */
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  char s_relptr[4];             /* file ptr to relocation       */
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  char s_lnnoptr[4];            /* file ptr to line numbers     */
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  char s_nreloc[2];             /* number of relocation entries */
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  char s_nlnno[2];              /* number of line number entries*/
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  char s_flags[4];              /* flags                        */
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};
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#define SCNHDR  struct external_scnhdr
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#define SCNHSZ  40
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/* Names of "special" sections. */
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#define _TEXT   ".text"
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#define _DATA   ".data"
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#define _BSS    ".bss"
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#define _TV     ".tv"
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#define _INIT   ".init"
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#define _FINI   ".fini"
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#define _COMMENT ".comment"
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#define _LIB ".lib"
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/********************** LINE NUMBERS **********************/
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/* 1 line number entry for every "breakpointable" source line in a section.
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   Line numbers are grouped on a per function basis; first entry in a function
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   grouping will have l_lnno = 0 and in place of physical address will be the
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   symbol table index of the function name. */
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struct external_lineno
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{
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  union {
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    char l_symndx[4];           /* fn name symbol index, iff l_lnno == 0 */
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    char l_paddr[4];            /* (physical) address of line number */
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  } l_addr;
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  char l_lnno[2];               /* line number */
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};
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#define LINENO  struct external_lineno
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#define LINESZ  (6)
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/********************** SYMBOLS **********************/
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#define E_SYMNMLEN      (8)     /* # characters in a symbol name        */
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#define E_FILNMLEN      (14)    /* # characters in a file name          */
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#define E_DIMNUM        (4)     /* # array dimensions in auxiliary entry */
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struct external_syment
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{
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  union {
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    char e_name[E_SYMNMLEN];
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    struct {
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      char e_zeroes[4];
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      char e_offset[4];
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    } e;
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#if 0 /* of doubtful value */
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    char e_nptr[2][4];
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    struct {
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      char e_leading_zero[1];
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      char e_dbx_type[1];
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      char e_dbx_desc[2];
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    } e_dbx;
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#endif
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  } e;
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  char e_value[4];
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  char e_scnum[2];
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  char e_type[2];
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  char e_sclass[1];
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  char e_numaux[1];
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  char padding[2];
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};
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#define N_BTMASK        (0xf)
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#define N_TMASK         (0x30)
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#define N_BTSHFT        (4)
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#define N_TSHIFT        (2)
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union external_auxent
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{
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  struct {
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    char x_tagndx[4];           /* str, un, or enum tag indx */
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    union {
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      struct {
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        char  x_lnno[2];        /* declaration line number */
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        char  x_size[2];        /* str/union/array size */
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      } x_lnsz;
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      char x_fsize[4];          /* size of function */
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    } x_misc;
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    union {
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      struct {                  /* if ISFCN, tag, or .bb */
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        char x_lnnoptr[4];      /* ptr to fcn line # */
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        char x_endndx[4];       /* entry ndx past block end */
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      } x_fcn;
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      struct {          /* if ISARY, up to 4 dimen. */
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        char x_dimen[E_DIMNUM][2];
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      } x_ary;
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    } x_fcnary;
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    char x_tvndx[2];            /* tv index */
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  } x_sym;
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  union {
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    char x_fname[E_FILNMLEN];
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    struct {
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      char x_zeroes[4];
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      char x_offset[4];
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    } x_n;
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  } x_file;
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  struct {
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    char x_scnlen[4];           /* section length */
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    char x_nreloc[2];           /* # relocation entries */
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    char x_nlinno[2];           /* # line numbers */
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  } x_scn;
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  struct {
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    char x_tvfill[4];           /* tv fill value */
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    char x_tvlen[2];            /* length of .tv */
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    char x_tvran[2][2];         /* tv range */
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  } x_tv;                       /* .tv section info (in auxent of sym .tv)) */
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  char x_fill[20];              /* forces to 20-byte size */
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};
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#define SYMENT  struct external_syment
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#define SYMESZ  20      
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#define AUXENT  union external_auxent
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#define AUXESZ  20
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#define _ETEXT  "etext"
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/********************** RELOCATION DIRECTIVES **********************/
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struct external_reloc {
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  char r_vaddr[4];
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  char r_symndx[4];
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  char r_type[2];
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  char r_spare[2];
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  char r_offset[4];
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};
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#define RELOC struct external_reloc
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#define RELSZ 16
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