source: trunk/binutils/include/coff/alpha.h@ 3418

Last change on this file since 3418 was 610, checked in by bird, 22 years ago

This commit was generated by cvs2svn to compensate for changes in r609,
which included commits to RCS files with non-trunk default branches.
  • Property cvs2svn:cvs-rev set to 1.1.1.2
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 10.9 KB
Line 
1/* ECOFF support on Alpha machines.
2 coff/ecoff.h must be included before this file.
3
4 Copyright 2001 Free Software Foundation, Inc.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20/********************** FILE HEADER **********************/
21
22struct external_filehdr
23{
24 unsigned char f_magic[2]; /* magic number */
25 unsigned char f_nscns[2]; /* number of sections */
26 unsigned char f_timdat[4]; /* time & date stamp */
27 unsigned char f_symptr[8]; /* file pointer to symtab */
28 unsigned char f_nsyms[4]; /* number of symtab entries */
29 unsigned char f_opthdr[2]; /* sizeof(optional hdr) */
30 unsigned char f_flags[2]; /* flags */
31};
32
33/* Magic numbers are defined in coff/ecoff.h. */
34#define ALPHA_ECOFF_BADMAG(x) \
35 ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD)
36
37/* The object type is encoded in the f_flags. */
38#define F_ALPHA_OBJECT_TYPE_MASK 0x3000
39#define F_ALPHA_NO_SHARED 0x1000
40#define F_ALPHA_SHARABLE 0x2000
41#define F_ALPHA_CALL_SHARED 0x3000
42
43#define FILHDR struct external_filehdr
44#define FILHSZ 24
45
46/********************** AOUT "OPTIONAL HEADER" **********************/
47
48typedef struct external_aouthdr
49{
50 unsigned char magic[2]; /* type of file */
51 unsigned char vstamp[2]; /* version stamp */
52 unsigned char bldrev[2]; /* ?? */
53 unsigned char padding[2]; /* pad to quadword boundary */
54 unsigned char tsize[8]; /* text size in bytes */
55 unsigned char dsize[8]; /* initialized data " " */
56 unsigned char bsize[8]; /* uninitialized data " " */
57 unsigned char entry[8]; /* entry pt. */
58 unsigned char text_start[8]; /* base of text used for this file */
59 unsigned char data_start[8]; /* base of data used for this file */
60 unsigned char bss_start[8]; /* base of bss used for this file */
61 unsigned char gprmask[4]; /* bitmask of general registers used */
62 unsigned char fprmask[4]; /* bitmask of floating point registers used */
63 unsigned char gp_value[8]; /* value for gp register */
64} AOUTHDR;
65
66/* compute size of a header */
67
68#define AOUTSZ 80
69#define AOUTHDRSZ 80
70
71/********************** SECTION HEADER **********************/
72
73struct external_scnhdr
74{
75 unsigned char s_name[8]; /* section name */
76 unsigned char s_paddr[8]; /* physical address, aliased s_nlib */
77 unsigned char s_vaddr[8]; /* virtual address */
78 unsigned char s_size[8]; /* section size */
79 unsigned char s_scnptr[8]; /* file ptr to raw data for section */
80 unsigned char s_relptr[8]; /* file ptr to relocation */
81 unsigned char s_lnnoptr[8]; /* file ptr to line numbers */
82 unsigned char s_nreloc[2]; /* number of relocation entries */
83 unsigned char s_nlnno[2]; /* number of line number entries*/
84 unsigned char s_flags[4]; /* flags */
85};
86
87#define SCNHDR struct external_scnhdr
88#define SCNHSZ 64
89
90/********************** RELOCATION DIRECTIVES **********************/
91
92struct external_reloc
93{
94 unsigned char r_vaddr[8];
95 unsigned char r_symndx[4];
96 unsigned char r_bits[4];
97};
98
99#define RELOC struct external_reloc
100#define RELSZ 16
101
102/* Constants to unpack the r_bits field. The Alpha seems to always be
103 little endian, so I haven't bothered to define big endian variants
104 of these. */
105
106#define RELOC_BITS0_TYPE_LITTLE 0xff
107#define RELOC_BITS0_TYPE_SH_LITTLE 0
108
109#define RELOC_BITS1_EXTERN_LITTLE 0x01
110
111#define RELOC_BITS1_OFFSET_LITTLE 0x7e
112#define RELOC_BITS1_OFFSET_SH_LITTLE 1
113
114#define RELOC_BITS1_RESERVED_LITTLE 0x80
115#define RELOC_BITS1_RESERVED_SH_LITTLE 7
116#define RELOC_BITS2_RESERVED_LITTLE 0xff
117#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1
118#define RELOC_BITS3_RESERVED_LITTLE 0x03
119#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9
120
121#define RELOC_BITS3_SIZE_LITTLE 0xfc
122#define RELOC_BITS3_SIZE_SH_LITTLE 2
123
124/* The r_type field in a reloc is one of the following values. */
125#define ALPHA_R_IGNORE 0
126#define ALPHA_R_REFLONG 1
127#define ALPHA_R_REFQUAD 2
128#define ALPHA_R_GPREL32 3
129#define ALPHA_R_LITERAL 4
130#define ALPHA_R_LITUSE 5
131#define ALPHA_R_GPDISP 6
132#define ALPHA_R_BRADDR 7
133#define ALPHA_R_HINT 8
134#define ALPHA_R_SREL16 9
135#define ALPHA_R_SREL32 10
136#define ALPHA_R_SREL64 11
137#define ALPHA_R_OP_PUSH 12
138#define ALPHA_R_OP_STORE 13
139#define ALPHA_R_OP_PSUB 14
140#define ALPHA_R_OP_PRSHIFT 15
141#define ALPHA_R_GPVALUE 16
142#define ALPHA_R_GPRELHIGH 17
143#define ALPHA_R_GPRELLOW 18
144#define ALPHA_R_IMMED 19
145
146/* Overloaded reloc value used by Net- and OpenBSD. */
147#define ALPHA_R_LITERALSLEAZY 17
148
149/* With ALPHA_R_LITUSE, the r_size field is one of the following values. */
150#define ALPHA_R_LU_BASE 1
151#define ALPHA_R_LU_BYTOFF 2
152#define ALPHA_R_LU_JSR 3
153
154/* With ALPHA_R_IMMED, the r_size field is one of the following values. */
155#define ALPHA_R_IMMED_GP_16 1
156#define ALPHA_R_IMMED_GP_HI32 2
157#define ALPHA_R_IMMED_SCN_HI32 3
158#define ALPHA_R_IMMED_BR_HI32 4
159#define ALPHA_R_IMMED_LO32 5
160
161/********************** SYMBOLIC INFORMATION **********************/
162
163/* Written by John Gilmore. */
164
165/* ECOFF uses COFF-like section structures, but its own symbol format.
166 This file defines the symbol format in fields whose size and alignment
167 will not vary on different host systems. */
168
169/* File header as a set of bytes */
170
171struct hdr_ext
172{
173 unsigned char h_magic[2];
174 unsigned char h_vstamp[2];
175 unsigned char h_ilineMax[4];
176 unsigned char h_idnMax[4];
177 unsigned char h_ipdMax[4];
178 unsigned char h_isymMax[4];
179 unsigned char h_ioptMax[4];
180 unsigned char h_iauxMax[4];
181 unsigned char h_issMax[4];
182 unsigned char h_issExtMax[4];
183 unsigned char h_ifdMax[4];
184 unsigned char h_crfd[4];
185 unsigned char h_iextMax[4];
186 unsigned char h_cbLine[8];
187 unsigned char h_cbLineOffset[8];
188 unsigned char h_cbDnOffset[8];
189 unsigned char h_cbPdOffset[8];
190 unsigned char h_cbSymOffset[8];
191 unsigned char h_cbOptOffset[8];
192 unsigned char h_cbAuxOffset[8];
193 unsigned char h_cbSsOffset[8];
194 unsigned char h_cbSsExtOffset[8];
195 unsigned char h_cbFdOffset[8];
196 unsigned char h_cbRfdOffset[8];
197 unsigned char h_cbExtOffset[8];
198};
199
200/* File descriptor external record */
201
202struct fdr_ext
203{
204 unsigned char f_adr[8];
205 unsigned char f_cbLineOffset[8];
206 unsigned char f_cbLine[8];
207 unsigned char f_cbSs[8];
208 unsigned char f_rss[4];
209 unsigned char f_issBase[4];
210 unsigned char f_isymBase[4];
211 unsigned char f_csym[4];
212 unsigned char f_ilineBase[4];
213 unsigned char f_cline[4];
214 unsigned char f_ioptBase[4];
215 unsigned char f_copt[4];
216 unsigned char f_ipdFirst[4];
217 unsigned char f_cpd[4];
218 unsigned char f_iauxBase[4];
219 unsigned char f_caux[4];
220 unsigned char f_rfdBase[4];
221 unsigned char f_crfd[4];
222 unsigned char f_bits1[1];
223 unsigned char f_bits2[3];
224 unsigned char f_padding[4];
225};
226
227#define FDR_BITS1_LANG_BIG 0xF8
228#define FDR_BITS1_LANG_SH_BIG 3
229#define FDR_BITS1_LANG_LITTLE 0x1F
230#define FDR_BITS1_LANG_SH_LITTLE 0
231
232#define FDR_BITS1_FMERGE_BIG 0x04
233#define FDR_BITS1_FMERGE_LITTLE 0x20
234
235#define FDR_BITS1_FREADIN_BIG 0x02
236#define FDR_BITS1_FREADIN_LITTLE 0x40
237
238#define FDR_BITS1_FBIGENDIAN_BIG 0x01
239#define FDR_BITS1_FBIGENDIAN_LITTLE 0x80
240
241#define FDR_BITS2_GLEVEL_BIG 0xC0
242#define FDR_BITS2_GLEVEL_SH_BIG 6
243#define FDR_BITS2_GLEVEL_LITTLE 0x03
244#define FDR_BITS2_GLEVEL_SH_LITTLE 0
245
246/* We ignore the `reserved' field in bits2. */
247
248/* Procedure descriptor external record */
249
250struct pdr_ext {
251 unsigned char p_adr[8];
252 unsigned char p_cbLineOffset[8];
253 unsigned char p_isym[4];
254 unsigned char p_iline[4];
255 unsigned char p_regmask[4];
256 unsigned char p_regoffset[4];
257 unsigned char p_iopt[4];
258 unsigned char p_fregmask[4];
259 unsigned char p_fregoffset[4];
260 unsigned char p_frameoffset[4];
261 unsigned char p_lnLow[4];
262 unsigned char p_lnHigh[4];
263 unsigned char p_gp_prologue[1];
264 unsigned char p_bits1[1];
265 unsigned char p_bits2[1];
266 unsigned char p_localoff[1];
267 unsigned char p_framereg[2];
268 unsigned char p_pcreg[2];
269};
270
271#define PDR_BITS1_GP_USED_BIG 0x80
272#define PDR_BITS1_REG_FRAME_BIG 0x40
273#define PDR_BITS1_PROF_BIG 0x20
274#define PDR_BITS1_RESERVED_BIG 0x1f
275#define PDR_BITS1_RESERVED_SH_LEFT_BIG 8
276#define PDR_BITS2_RESERVED_BIG 0xff
277#define PDR_BITS2_RESERVED_SH_BIG 0
278
279#define PDR_BITS1_GP_USED_LITTLE 0x01
280#define PDR_BITS1_REG_FRAME_LITTLE 0x02
281#define PDR_BITS1_PROF_LITTLE 0x04
282#define PDR_BITS1_RESERVED_LITTLE 0xf8
283#define PDR_BITS1_RESERVED_SH_LITTLE 3
284#define PDR_BITS2_RESERVED_LITTLE 0xff
285#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5
286
287/* Line numbers */
288
289struct line_ext {
290 unsigned char l_line[4];
291};
292
293/* Symbol external record */
294
295struct sym_ext {
296 unsigned char s_value[8];
297 unsigned char s_iss[4];
298 unsigned char s_bits1[1];
299 unsigned char s_bits2[1];
300 unsigned char s_bits3[1];
301 unsigned char s_bits4[1];
302};
303
304#define SYM_BITS1_ST_BIG 0xFC
305#define SYM_BITS1_ST_SH_BIG 2
306#define SYM_BITS1_ST_LITTLE 0x3F
307#define SYM_BITS1_ST_SH_LITTLE 0
308
309#define SYM_BITS1_SC_BIG 0x03
310#define SYM_BITS1_SC_SH_LEFT_BIG 3
311#define SYM_BITS1_SC_LITTLE 0xC0
312#define SYM_BITS1_SC_SH_LITTLE 6
313
314#define SYM_BITS2_SC_BIG 0xE0
315#define SYM_BITS2_SC_SH_BIG 5
316#define SYM_BITS2_SC_LITTLE 0x07
317#define SYM_BITS2_SC_SH_LEFT_LITTLE 2
318
319#define SYM_BITS2_RESERVED_BIG 0x10
320#define SYM_BITS2_RESERVED_LITTLE 0x08
321
322#define SYM_BITS2_INDEX_BIG 0x0F
323#define SYM_BITS2_INDEX_SH_LEFT_BIG 16
324#define SYM_BITS2_INDEX_LITTLE 0xF0
325#define SYM_BITS2_INDEX_SH_LITTLE 4
326
327#define SYM_BITS3_INDEX_SH_LEFT_BIG 8
328#define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4
329
330#define SYM_BITS4_INDEX_SH_LEFT_BIG 0
331#define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12
332
333/* External symbol external record */
334
335struct ext_ext {
336 struct sym_ext es_asym;
337 unsigned char es_bits1[1];
338 unsigned char es_bits2[3];
339 unsigned char es_ifd[4];
340};
341
342#define EXT_BITS1_JMPTBL_BIG 0x80
343#define EXT_BITS1_JMPTBL_LITTLE 0x01
344
345#define EXT_BITS1_COBOL_MAIN_BIG 0x40
346#define EXT_BITS1_COBOL_MAIN_LITTLE 0x02
347
348#define EXT_BITS1_WEAKEXT_BIG 0x20
349#define EXT_BITS1_WEAKEXT_LITTLE 0x04
350
351/* Dense numbers external record */
352
353struct dnr_ext {
354 unsigned char d_rfd[4];
355 unsigned char d_index[4];
356};
357
358/* Relative file descriptor */
359
360struct rfd_ext {
361 unsigned char rfd[4];
362};
363
364/* Optimizer symbol external record */
365
366struct opt_ext {
367 unsigned char o_bits1[1];
368 unsigned char o_bits2[1];
369 unsigned char o_bits3[1];
370 unsigned char o_bits4[1];
371 struct rndx_ext o_rndx;
372 unsigned char o_offset[4];
373};
374
375#define OPT_BITS2_VALUE_SH_LEFT_BIG 16
376#define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0
377
378#define OPT_BITS3_VALUE_SH_LEFT_BIG 8
379#define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8
380
381#define OPT_BITS4_VALUE_SH_LEFT_BIG 0
382#define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16
Note: See TracBrowser for help on using the repository browser.