| /* coff information for TI TMS320C80 (MVP) |
| |
| Copyright 2001 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| /********************** 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 |
| |
| |
| /********************** AOUT "OPTIONAL HEADER" **********************/ |
| |
| |
| typedef struct |
| { |
| char magic[2]; /* type of file */ |
| char vstamp[2]; /* version stamp */ |
| char tsize[4]; /* text size in bytes, padded to FW bdry*/ |
| char dsize[4]; /* initialized data " " */ |
| char bsize[4]; /* uninitialized data " " */ |
| char entry[4]; /* entry pt. */ |
| char text_start[4]; /* base of text used for this file */ |
| char data_start[4]; /* base of data used for this file */ |
| } |
| AOUTHDR; |
| |
| #define TIC80_AOUTHDR_MAGIC 0x108 /* Goes in the optional file header magic number field */ |
| |
| #define AOUTHDRSZ 28 |
| #define AOUTSZ 28 |
| |
| |
| |
| |
| /********************** 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 |
| |
| |
| /********************** LINE NUMBERS **********************/ |
| |
| /* 1 line number entry for every "breakpointable" source line in a section. |
| * Line numbers are grouped on a per function basis; first entry in a function |
| * grouping will have l_lnno = 0 and in place of physical address will be the |
| * symbol table index of the function name. |
| */ |
| struct external_lineno { |
| union { |
| char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
| char l_paddr[4]; /* (physical) address of line number */ |
| } l_addr; |
| char l_lnno[2]; /* line number */ |
| }; |
| |
| #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno)); |
| #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno)); |
| |
| #define LINENO struct external_lineno |
| #define LINESZ 6 |
| |
| |
| /********************** SYMBOLS **********************/ |
| |
| #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
| #define E_FILNMLEN 14 /* # characters in a file name */ |
| #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
| |
| struct external_syment |
| { |
| union { |
| char e_name[E_SYMNMLEN]; |
| struct { |
| char e_zeroes[4]; |
| char e_offset[4]; |
| } e; |
| } e; |
| char e_value[4]; |
| char e_scnum[2]; |
| char e_type[2]; |
| char e_sclass[1]; |
| char e_numaux[1]; |
| }; |
| |
| |
| |
| #define N_BTMASK (017) |
| #define N_TMASK (060) |
| #define N_BTSHFT (4) |
| #define N_TSHIFT (2) |
| |
| /* FIXME - need to correlate with TIc80 Code Generation Tools User's Guide, CG:A-25 */ |
| union external_auxent { |
| struct { |
| char x_tagndx[4]; /* str, un, or enum tag indx */ |
| union { |
| struct { |
| char x_lnno[2]; /* declaration line number */ |
| char x_size[2]; /* str/union/array size */ |
| } x_lnsz; |
| char x_fsize[4]; /* size of function */ |
| } x_misc; |
| union { |
| struct { /* if ISFCN, tag, or .bb */ |
| char x_lnnoptr[4]; /* ptr to fcn line # */ |
| char x_endndx[4]; /* entry ndx past block end */ |
| } x_fcn; |
| struct { /* if ISARY, up to 4 dimen. */ |
| char x_dimen[E_DIMNUM][2]; |
| } x_ary; |
| } x_fcnary; |
| char x_tvndx[2]; /* tv index */ |
| } x_sym; |
| |
| union { |
| char x_fname[E_FILNMLEN]; |
| struct { |
| char x_zeroes[4]; |
| char x_offset[4]; |
| } x_n; |
| } x_file; |
| |
| struct { |
| char x_scnlen[4]; /* section length */ |
| char x_nreloc[2]; /* # relocation entries */ |
| char x_nlinno[2]; /* # line numbers */ |
| } x_scn; |
| |
| struct { |
| char x_tvfill[4]; /* tv fill value */ |
| char x_tvlen[2]; /* length of .tv */ |
| char x_tvran[2][2]; /* tv range */ |
| } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
| |
| |
| }; |
| |
| #define SYMENT struct external_syment |
| #define SYMESZ 18 |
| #define AUXENT union external_auxent |
| #define AUXESZ 18 |
| |
| |
| |
| /********************** 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 */ |