Subversion Repositories openrisc_2011-10-31

/* coff information for TI TMS320C80 (MVP)

   Copyright 2001, 2010 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#define DO_NOT_DEFINE_FILHDR

#define DO_NOT_DEFINE_SCNHDR

#define L_LNNO_SIZE 2

#include "coff/external.h"

/********************** FILE HEADER **********************/

struct external_filehdr

  {

    char f_magic[2];    /* magic number                 */

    char f_nscns[2];    /* number of sections           */

    char f_timdat[4];   /* time & date stamp            */

    char f_symptr[4];   /* file pointer to symtab       */

    char f_nsyms[4];    /* number of symtab entries     */

    char f_opthdr[2];   /* sizeof(optional hdr)         */

    char f_flags[2];    /* flags                        */

    char f_target_id[2];/* target id (TIc80 specific)   */

};

#define TIC80_ARCH_MAGIC        0x0C1   /* Goes in the file header magic number field */

#define TIC80_TARGET_ID         0x95    /* Goes in the target id field */

#define TIC80BADMAG(x) ((x).f_magic != TIC80_ARCH_MAGIC)

#define FILHDR  struct external_filehdr

#define FILHSZ  22

#define TIC80_AOUTHDR_MAGIC     0x108   /* Goes in the optional file header magic number field */

/********************** SECTION HEADER **********************/

struct external_scnhdr

{

        char            s_name[8];      /* section name                 */

        char            s_paddr[4];     /* physical address, aliased s_nlib */

        char            s_vaddr[4];     /* virtual address              */

        char            s_size[4];      /* section size                 */

        char            s_scnptr[4];    /* file ptr to raw data for section */

        char            s_relptr[4];    /* file ptr to relocation       */

        char            s_lnnoptr[4];   /* file ptr to line numbers     */

        char            s_nreloc[2];    /* number of relocation entries */

        char            s_nlnno[2];     /* number of line number entries*/

        char            s_flags[2];     /* flags                        */

        char            s_reserved[1];  /* reserved (TIc80 specific)    */

        char            s_mempage[1];   /* memory page number (TIc80)   */

};

/* Names of "special" sections.  */

#define _TEXT   ".text"

#define _DATA   ".data"

#define _BSS    ".bss"

#define _CINIT  ".cinit"

#define _CONST  ".const"

#define _SWITCH ".switch"

#define _STACK  ".stack"

#define _SYSMEM ".sysmem"

#define SCNHDR  struct external_scnhdr

#define SCNHSZ  40

/* FIXME - need to correlate external_auxent with

   TIc80 Code Generation Tools User's Guide, CG:A-25 */

/********************** RELOCATION DIRECTIVES **********************/

/* The external reloc has an offset field, because some of the reloc

   types on the h8 don't have room in the instruction for the entire

   offset - eg the strange jump and high page addressing modes.  */

struct external_reloc

{

  char r_vaddr[4];

  char r_symndx[4];

  char r_reserved[2];

  char r_type[2];

};

#define RELOC struct external_reloc

#define RELSZ 12

/* TIc80 relocation types. */

#define R_ABS           0x00            /* Absolute address - no relocation */

#define R_RELLONGX      0x11            /* PP: 32 bits, direct */

#define R_PPBASE        0x34            /* PP: Global base address type */

#define R_PPLBASE       0x35            /* PP: Local base address type */

#define R_PP15          0x38            /* PP: Global 15 bit offset */

#define R_PP15W         0x39            /* PP: Global 15 bit offset divided by 4 */

#define R_PP15H         0x3A            /* PP: Global 15 bit offset divided by 2 */

#define R_PP16B         0x3B            /* PP: Global 16 bit offset for bytes */

#define R_PPL15         0x3C            /* PP: Local 15 bit offset */

#define R_PPL15W        0x3D            /* PP: Local 15 bit offset divided by 4 */

#define R_PPL15H        0x3E            /* PP: Local 15 bit offset divided by 2 */

#define R_PPL16B        0x3F            /* PP: Local 16 bit offset for bytes */

#define R_PPN15         0x40            /* PP: Global 15 bit negative offset */

#define R_PPN15W        0x41            /* PP: Global 15 bit negative offset divided by 4 */

#define R_PPN15H        0x42            /* PP: Global 15 bit negative offset divided by 2 */

#define R_PPN16B        0x43            /* PP: Global 16 bit negative byte offset */

#define R_PPLN15        0x44            /* PP: Local 15 bit negative offset */

#define R_PPLN15W       0x45            /* PP: Local 15 bit negative offset divided by 4 */

#define R_PPLN15H       0x46            /* PP: Local 15 bit negative offset divided by 2 */

#define R_PPLN16B       0x47            /* PP: Local 16 bit negative byte offset */

#define R_MPPCR15W      0x4E            /* MP: 15 bit PC-relative divided by 4 */

#define R_MPPCR         0x4F            /* MP: 32 bit PC-relative divided by 4 */