source: trunk/libs/newlib/src/include/coff/tic80.h @ 649

Last change on this file since 649 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 4.6 KB
RevLine 
[444]1/* coff information for TI TMS320C80 (MVP)
2   
3   Copyright 2001, 2010 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9   
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14   
15   You should have received a copy of the GNU General Public License
16   along with this program; if not, write to the Free Software
17   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
18   MA 02110-1301, USA.  */
19
20#define DO_NOT_DEFINE_FILHDR
21#define DO_NOT_DEFINE_SCNHDR
22#define L_LNNO_SIZE 2
23#include "coff/external.h"
24
25/********************** FILE HEADER **********************/
26
27struct external_filehdr
28  {
29    char f_magic[2];    /* magic number                 */
30    char f_nscns[2];    /* number of sections           */
31    char f_timdat[4];   /* time & date stamp            */
32    char f_symptr[4];   /* file pointer to symtab       */
33    char f_nsyms[4];    /* number of symtab entries     */
34    char f_opthdr[2];   /* sizeof(optional hdr)         */
35    char f_flags[2];    /* flags                        */
36    char f_target_id[2];/* target id (TIc80 specific)   */
37};
38
39#define TIC80_ARCH_MAGIC        0x0C1   /* Goes in the file header magic number field */
40#define TIC80_TARGET_ID         0x95    /* Goes in the target id field */
41
42#define TIC80BADMAG(x) ((x).f_magic != TIC80_ARCH_MAGIC)
43
44#define FILHDR  struct external_filehdr
45#define FILHSZ  22
46
47#define TIC80_AOUTHDR_MAGIC     0x108   /* Goes in the optional file header magic number field */
48
49/********************** SECTION HEADER **********************/
50
51struct external_scnhdr
52{
53        char            s_name[8];      /* section name                 */
54        char            s_paddr[4];     /* physical address, aliased s_nlib */
55        char            s_vaddr[4];     /* virtual address              */
56        char            s_size[4];      /* section size                 */
57        char            s_scnptr[4];    /* file ptr to raw data for section */
58        char            s_relptr[4];    /* file ptr to relocation       */
59        char            s_lnnoptr[4];   /* file ptr to line numbers     */
60        char            s_nreloc[2];    /* number of relocation entries */
61        char            s_nlnno[2];     /* number of line number entries*/
62        char            s_flags[2];     /* flags                        */
63        char            s_reserved[1];  /* reserved (TIc80 specific)    */
64        char            s_mempage[1];   /* memory page number (TIc80)   */
65};
66
67/* Names of "special" sections.  */
68#define _TEXT   ".text"
69#define _DATA   ".data"
70#define _BSS    ".bss"
71#define _CINIT  ".cinit"
72#define _CONST  ".const"
73#define _SWITCH ".switch"
74#define _STACK  ".stack"
75#define _SYSMEM ".sysmem"
76
77#define SCNHDR  struct external_scnhdr
78#define SCNHSZ  40
79 
80/* FIXME - need to correlate external_auxent with
81   TIc80 Code Generation Tools User's Guide, CG:A-25 */
82
83/********************** RELOCATION DIRECTIVES **********************/
84
85/* The external reloc has an offset field, because some of the reloc
86   types on the h8 don't have room in the instruction for the entire
87   offset - eg the strange jump and high page addressing modes.  */
88
89struct external_reloc
90{
91  char r_vaddr[4];
92  char r_symndx[4];
93  char r_reserved[2];
94  char r_type[2];
95};
96
97#define RELOC struct external_reloc
98#define RELSZ 12
99
100/* TIc80 relocation types. */
101
102#define R_ABS           0x00            /* Absolute address - no relocation */
103#define R_RELLONGX      0x11            /* PP: 32 bits, direct */
104#define R_PPBASE        0x34            /* PP: Global base address type */
105#define R_PPLBASE       0x35            /* PP: Local base address type */
106#define R_PP15          0x38            /* PP: Global 15 bit offset */
107#define R_PP15W         0x39            /* PP: Global 15 bit offset divided by 4 */
108#define R_PP15H         0x3A            /* PP: Global 15 bit offset divided by 2 */
109#define R_PP16B         0x3B            /* PP: Global 16 bit offset for bytes */
110#define R_PPL15         0x3C            /* PP: Local 15 bit offset */
111#define R_PPL15W        0x3D            /* PP: Local 15 bit offset divided by 4 */
112#define R_PPL15H        0x3E            /* PP: Local 15 bit offset divided by 2 */
113#define R_PPL16B        0x3F            /* PP: Local 16 bit offset for bytes */
114#define R_PPN15         0x40            /* PP: Global 15 bit negative offset */
115#define R_PPN15W        0x41            /* PP: Global 15 bit negative offset divided by 4 */
116#define R_PPN15H        0x42            /* PP: Global 15 bit negative offset divided by 2 */
117#define R_PPN16B        0x43            /* PP: Global 16 bit negative byte offset */
118#define R_PPLN15        0x44            /* PP: Local 15 bit negative offset */
119#define R_PPLN15W       0x45            /* PP: Local 15 bit negative offset divided by 4 */
120#define R_PPLN15H       0x46            /* PP: Local 15 bit negative offset divided by 2 */
121#define R_PPLN16B       0x47            /* PP: Local 16 bit negative byte offset */
122#define R_MPPCR15W      0x4E            /* MP: 15 bit PC-relative divided by 4 */
123#define R_MPPCR         0x4F            /* MP: 32 bit PC-relative divided by 4 */
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