source: trunk/src/binutils/include/coff/sh.h@ 10

Last change on this file since 10 was 10, checked in by bird, 23 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 10.0 KB
Line 
1/* coff information for Hitachi SH
2
3 Copyright 2001 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18
19/********************** FILE HEADER **********************/
20
21struct external_filehdr {
22 char f_magic[2]; /* magic number */
23 char f_nscns[2]; /* number of sections */
24 char f_timdat[4]; /* time & date stamp */
25 char f_symptr[4]; /* file pointer to symtab */
26 char f_nsyms[4]; /* number of symtab entries */
27 char f_opthdr[2]; /* sizeof(optional hdr) */
28 char f_flags[2]; /* flags */
29};
30
31
32
33#define SH_ARCH_MAGIC_BIG 0x0500
34#define SH_ARCH_MAGIC_LITTLE 0x0550 /* Little endian SH */
35#define SH_ARCH_MAGIC_WINCE 0x01a2 /* Windows CE - little endian */
36#define SH_PE_MAGIC 0x010b
37
38
39#define SHBADMAG(x) \
40 (((x).f_magic!=SH_ARCH_MAGIC_BIG) && \
41 ((x).f_magic!=SH_ARCH_MAGIC_WINCE) && \
42 ((x).f_magic!=SH_ARCH_MAGIC_LITTLE))
43
44#define FILHDR struct external_filehdr
45#define FILHSZ 20
46
47
48/********************** AOUT "OPTIONAL HEADER" **********************/
49
50
51typedef struct
52{
53 char magic[2]; /* type of file */
54 char vstamp[2]; /* version stamp */
55 char tsize[4]; /* text size in bytes, padded to FW bdry*/
56 char dsize[4]; /* initialized data " " */
57 char bsize[4]; /* uninitialized data " " */
58 char entry[4]; /* entry pt. */
59 char text_start[4]; /* base of text used for this file */
60 char data_start[4]; /* base of data used for this file */
61}
62AOUTHDR;
63
64
65#define AOUTHDRSZ 28
66#define AOUTSZ 28
67
68
69
70/* Define some NT default values. */
71/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
72#define NT_SECTION_ALIGNMENT 0x1000
73#define NT_FILE_ALIGNMENT 0x200
74#define NT_DEF_RESERVE 0x100000
75#define NT_DEF_COMMIT 0x1000
76
77/********************** SECTION HEADER **********************/
78
79
80struct external_scnhdr {
81 char s_name[8]; /* section name */
82 char s_paddr[4]; /* physical address, aliased s_nlib */
83 char s_vaddr[4]; /* virtual address */
84 char s_size[4]; /* section size */
85 char s_scnptr[4]; /* file ptr to raw data for section */
86 char s_relptr[4]; /* file ptr to relocation */
87 char s_lnnoptr[4]; /* file ptr to line numbers */
88 char s_nreloc[2]; /* number of relocation entries */
89 char s_nlnno[2]; /* number of line number entries*/
90 char s_flags[4]; /* flags */
91};
92
93/*
94 * names of "special" sections
95 */
96#define _TEXT ".text"
97#define _DATA ".data"
98#define _BSS ".bss"
99
100
101#define SCNHDR struct external_scnhdr
102#define SCNHSZ 40
103
104
105/********************** LINE NUMBERS **********************/
106
107/* 1 line number entry for every "breakpointable" source line in a section.
108 * Line numbers are grouped on a per function basis; first entry in a function
109 * grouping will have l_lnno = 0 and in place of physical address will be the
110 * symbol table index of the function name.
111 */
112struct external_lineno {
113 union {
114 char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
115 char l_paddr[4]; /* (physical) address of line number */
116 } l_addr;
117#ifdef COFF_WITH_PE
118 char l_lnno[2]; /* line number */
119#else
120 char l_lnno[4]; /* line number */
121#endif
122};
123
124#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno));
125#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno));
126
127#define LINENO struct external_lineno
128#ifdef COFF_WITH_PE
129#define LINESZ 6
130#undef GET_LINENO_LNNO
131#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
132#undef PUT_LINENO_LNNO
133#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
134#else
135#define LINESZ 8
136#endif
137
138
139/********************** SYMBOLS **********************/
140
141#define E_SYMNMLEN 8 /* # characters in a symbol name */
142#define E_FILNMLEN 14 /* # characters in a file name */
143#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
144
145struct external_syment
146{
147 union {
148 char e_name[E_SYMNMLEN];
149 struct {
150 char e_zeroes[4];
151 char e_offset[4];
152 } e;
153 } e;
154 char e_value[4];
155 char e_scnum[2];
156 char e_type[2];
157 char e_sclass[1];
158 char e_numaux[1];
159};
160
161
162
163#define N_BTMASK (017)
164#define N_TMASK (060)
165#define N_BTSHFT (4)
166#define N_TSHIFT (2)
167
168
169union external_auxent {
170 struct {
171 char x_tagndx[4]; /* str, un, or enum tag indx */
172 union {
173 struct {
174 char x_lnno[2]; /* declaration line number */
175 char x_size[2]; /* str/union/array size */
176 } x_lnsz;
177 char x_fsize[4]; /* size of function */
178 } x_misc;
179 union {
180 struct { /* if ISFCN, tag, or .bb */
181 char x_lnnoptr[4]; /* ptr to fcn line # */
182 char x_endndx[4]; /* entry ndx past block end */
183 } x_fcn;
184 struct { /* if ISARY, up to 4 dimen. */
185 char x_dimen[E_DIMNUM][2];
186 } x_ary;
187 } x_fcnary;
188 char x_tvndx[2]; /* tv index */
189 } x_sym;
190
191 union {
192 char x_fname[E_FILNMLEN];
193 struct {
194 char x_zeroes[4];
195 char x_offset[4];
196 } x_n;
197 } x_file;
198
199 struct {
200 char x_scnlen[4]; /* section length */
201 char x_nreloc[2]; /* # relocation entries */
202 char x_nlinno[2]; /* # line numbers */
203 char x_checksum[4]; /* section COMDAT checksum */
204 char x_associated[2]; /* COMDAT associated section index */
205 char x_comdat[1]; /* COMDAT selection number */
206 } x_scn;
207
208 struct {
209 char x_tvfill[4]; /* tv fill value */
210 char x_tvlen[2]; /* length of .tv */
211 char x_tvran[2][2]; /* tv range */
212 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
213
214
215};
216
217#define SYMENT struct external_syment
218#define SYMESZ 18
219#define AUXENT union external_auxent
220#define AUXESZ 18
221
222
223
224/********************** RELOCATION DIRECTIVES **********************/
225
226/* The external reloc has an offset field, because some of the reloc
227 types on the h8 don't have room in the instruction for the entire
228 offset - eg the strange jump and high page addressing modes */
229
230#ifndef COFF_WITH_PE
231struct external_reloc {
232 char r_vaddr[4];
233 char r_symndx[4];
234 char r_offset[4];
235 char r_type[2];
236 char r_stuff[2];
237};
238#else
239struct external_reloc {
240 char r_vaddr[4];
241 char r_symndx[4];
242 char r_type[2];
243};
244#endif
245
246
247#define RELOC struct external_reloc
248#ifdef COFF_WITH_PE
249#define RELSZ 10
250#else
251#define RELSZ 16
252#endif
253
254/* SH relocation types. Not all of these are actually used. */
255
256#define R_SH_UNUSED 0 /* only used internally */
257#define R_SH_IMM32CE 2 /* 32 bit immediate for WinCE */
258#define R_SH_PCREL8 3 /* 8 bit pcrel */
259#define R_SH_PCREL16 4 /* 16 bit pcrel */
260#define R_SH_HIGH8 5 /* high 8 bits of 24 bit address */
261#define R_SH_LOW16 7 /* low 16 bits of 24 bit immediate */
262#define R_SH_IMM24 6 /* 24 bit immediate */
263#define R_SH_PCDISP8BY4 9 /* PC rel 8 bits *4 +ve */
264#define R_SH_PCDISP8BY2 10 /* PC rel 8 bits *2 +ve */
265#define R_SH_PCDISP8 11 /* 8 bit branch */
266#define R_SH_PCDISP 12 /* 12 bit branch */
267#define R_SH_IMM32 14 /* 32 bit immediate */
268#define R_SH_IMM8 16 /* 8 bit immediate */
269#define R_SH_IMAGEBASE 16 /* Windows CE */
270#define R_SH_IMM8BY2 17 /* 8 bit immediate *2 */
271#define R_SH_IMM8BY4 18 /* 8 bit immediate *4 */
272#define R_SH_IMM4 19 /* 4 bit immediate */
273#define R_SH_IMM4BY2 20 /* 4 bit immediate *2 */
274#define R_SH_IMM4BY4 21 /* 4 bit immediate *4 */
275#define R_SH_PCRELIMM8BY2 22 /* PC rel 8 bits *2 unsigned */
276#define R_SH_PCRELIMM8BY4 23 /* PC rel 8 bits *4 unsigned */
277#define R_SH_IMM16 24 /* 16 bit immediate */
278
279/* The switch table reloc types are used for relaxing. They are
280 generated for expressions such as
281 .word L1 - L2
282 The r_offset field holds the difference between the reloc address
283 and L2. */
284#define R_SH_SWITCH8 33 /* 8 bit switch table entry */
285#define R_SH_SWITCH16 25 /* 16 bit switch table entry */
286#define R_SH_SWITCH32 26 /* 32 bit switch table entry */
287
288/* The USES reloc type is used for relaxing. The compiler will
289 generate .uses pseudo-ops when it finds a function call which it
290 can relax. The r_offset field of the USES reloc holds the PC
291 relative offset to the instruction which loads the register used in
292 the function call. */
293#define R_SH_USES 27 /* .uses pseudo-op */
294
295/* The COUNT reloc type is used for relaxing. The assembler will
296 generate COUNT relocs for addresses referred to by the register
297 loads associated with USES relocs. The r_offset field of the COUNT
298 reloc holds the number of times the address is referenced in the
299 object file. */
300#define R_SH_COUNT 28 /* Count of constant pool uses */
301
302/* The ALIGN reloc type is used for relaxing. The r_offset field is
303 the power of two to which subsequent portions of the object file
304 must be aligned. */
305#define R_SH_ALIGN 29 /* .align pseudo-op */
306
307/* The CODE and DATA reloc types are used for aligning load and store
308 instructions. The assembler will generate a CODE reloc before a
309 block of instructions. It will generate a DATA reloc before data.
310 A section should be processed assuming it contains data, unless a
311 CODE reloc is seen. The only relevant pieces of information in the
312 CODE and DATA relocs are the section and the address. The symbol
313 and offset are meaningless. */
314#define R_SH_CODE 30 /* start of code */
315#define R_SH_DATA 31 /* start of data */
316
317/* The LABEL reloc type is used for aligning load and store
318 instructions. The assembler will generate a LABEL reloc for each
319 label within a block of instructions. This permits the linker to
320 avoid swapping instructions which are the targets of branches. */
321#define R_SH_LABEL 32 /* label */
322
323/* NB: R_SH_SWITCH8 is 33 */
324
325#define R_SH_LOOP_START 34
326#define R_SH_LOOP_END 35
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