Commit | Line | Data |
---|---|---|
dae31cf5 | 1 | /* BFD back-end for ALPHA Extended-Coff files. |
fa965415 | 2 | Copyright 1993, 1994 Free Software Foundation, Inc. |
dae31cf5 ILT |
3 | Modified from coff-mips.c by Steve Chamberlain <sac@cygnus.com> and |
4 | Ian Lance Taylor <ian@cygnus.com>. | |
5f8f6d56 | 5 | |
5f8f6d56 SC |
6 | This file is part of BFD, the Binary File Descriptor library. |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
a5655244 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
5f8f6d56 SC |
21 | |
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
693f8191 | 24 | #include "bfdlink.h" |
5f8f6d56 | 25 | #include "libbfd.h" |
5f8f6d56 SC |
26 | #include "coff/internal.h" |
27 | #include "coff/sym.h" | |
28 | #include "coff/symconst.h" | |
dae31cf5 ILT |
29 | #include "coff/ecoff.h" |
30 | #include "coff/alpha.h" | |
5f8f6d56 SC |
31 | #include "libcoff.h" |
32 | #include "libecoff.h" | |
5f8f6d56 SC |
33 | \f |
34 | /* Prototypes for static functions. */ | |
35 | ||
2f3508ad | 36 | static const bfd_target *alpha_ecoff_object_p PARAMS ((bfd *)); |
dae31cf5 | 37 | static boolean alpha_ecoff_bad_format_hook PARAMS ((bfd *abfd, PTR filehdr)); |
69645d10 | 38 | static PTR alpha_ecoff_mkobject_hook PARAMS ((bfd *, PTR filehdr, PTR aouthdr)); |
dae31cf5 ILT |
39 | static void alpha_ecoff_swap_reloc_in PARAMS ((bfd *, PTR, |
40 | struct internal_reloc *)); | |
41 | static void alpha_ecoff_swap_reloc_out PARAMS ((bfd *, | |
42 | const struct internal_reloc *, | |
43 | PTR)); | |
693f8191 KR |
44 | static void alpha_adjust_reloc_in PARAMS ((bfd *, |
45 | const struct internal_reloc *, | |
46 | arelent *)); | |
47 | static void alpha_adjust_reloc_out PARAMS ((bfd *, const arelent *, | |
48 | struct internal_reloc *)); | |
49 | static bfd_byte *alpha_ecoff_get_relocated_section_contents | |
50 | PARAMS ((bfd *abfd, struct bfd_link_info *, struct bfd_link_order *, | |
51 | bfd_byte *data, boolean relocateable, asymbol **symbols)); | |
52 | static bfd_vma alpha_convert_external_reloc | |
53 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, struct external_reloc *, | |
54 | struct ecoff_link_hash_entry *)); | |
55 | static boolean alpha_relocate_section PARAMS ((bfd *, struct bfd_link_info *, | |
56 | bfd *, asection *, | |
57 | bfd_byte *, PTR)); | |
aca73687 ILT |
58 | static boolean alpha_adjust_headers |
59 | PARAMS ((bfd *, struct internal_filehdr *, struct internal_aouthdr *)); | |
5f8f6d56 | 60 | \f |
dae31cf5 ILT |
61 | /* ECOFF has COFF sections, but the debugging information is stored in |
62 | a completely different format. ECOFF targets use some of the | |
63 | swapping routines from coffswap.h, and some of the generic COFF | |
64 | routines in coffgen.c, but, unlike the real COFF targets, do not | |
65 | use coffcode.h itself. | |
66 | ||
67 | Get the generic COFF swapping routines, except for the reloc, | |
693f8191 KR |
68 | symbol, and lineno ones. Give them ecoff names. Define some |
69 | accessor macros for the large sizes used for Alpha ECOFF. */ | |
70 | ||
71 | #define GET_FILEHDR_SYMPTR bfd_h_get_64 | |
72 | #define PUT_FILEHDR_SYMPTR bfd_h_put_64 | |
73 | #define GET_AOUTHDR_TSIZE bfd_h_get_64 | |
74 | #define PUT_AOUTHDR_TSIZE bfd_h_put_64 | |
75 | #define GET_AOUTHDR_DSIZE bfd_h_get_64 | |
76 | #define PUT_AOUTHDR_DSIZE bfd_h_put_64 | |
77 | #define GET_AOUTHDR_BSIZE bfd_h_get_64 | |
78 | #define PUT_AOUTHDR_BSIZE bfd_h_put_64 | |
79 | #define GET_AOUTHDR_ENTRY bfd_h_get_64 | |
80 | #define PUT_AOUTHDR_ENTRY bfd_h_put_64 | |
81 | #define GET_AOUTHDR_TEXT_START bfd_h_get_64 | |
82 | #define PUT_AOUTHDR_TEXT_START bfd_h_put_64 | |
83 | #define GET_AOUTHDR_DATA_START bfd_h_get_64 | |
84 | #define PUT_AOUTHDR_DATA_START bfd_h_put_64 | |
85 | #define GET_SCNHDR_PADDR bfd_h_get_64 | |
86 | #define PUT_SCNHDR_PADDR bfd_h_put_64 | |
87 | #define GET_SCNHDR_VADDR bfd_h_get_64 | |
88 | #define PUT_SCNHDR_VADDR bfd_h_put_64 | |
89 | #define GET_SCNHDR_SIZE bfd_h_get_64 | |
90 | #define PUT_SCNHDR_SIZE bfd_h_put_64 | |
91 | #define GET_SCNHDR_SCNPTR bfd_h_get_64 | |
92 | #define PUT_SCNHDR_SCNPTR bfd_h_put_64 | |
93 | #define GET_SCNHDR_RELPTR bfd_h_get_64 | |
94 | #define PUT_SCNHDR_RELPTR bfd_h_put_64 | |
95 | #define GET_SCNHDR_LNNOPTR bfd_h_get_64 | |
96 | #define PUT_SCNHDR_LNNOPTR bfd_h_put_64 | |
97 | ||
dae31cf5 | 98 | #define ALPHAECOFF |
693f8191 | 99 | |
5f8f6d56 SC |
100 | #define NO_COFF_RELOCS |
101 | #define NO_COFF_SYMBOLS | |
102 | #define NO_COFF_LINENOS | |
dae31cf5 ILT |
103 | #define coff_swap_filehdr_in alpha_ecoff_swap_filehdr_in |
104 | #define coff_swap_filehdr_out alpha_ecoff_swap_filehdr_out | |
105 | #define coff_swap_aouthdr_in alpha_ecoff_swap_aouthdr_in | |
106 | #define coff_swap_aouthdr_out alpha_ecoff_swap_aouthdr_out | |
107 | #define coff_swap_scnhdr_in alpha_ecoff_swap_scnhdr_in | |
108 | #define coff_swap_scnhdr_out alpha_ecoff_swap_scnhdr_out | |
5f8f6d56 | 109 | #include "coffswap.h" |
5f8f6d56 | 110 | |
dae31cf5 ILT |
111 | /* Get the ECOFF swapping routines. */ |
112 | #define ECOFF_64 | |
113 | #include "ecoffswap.h" | |
114 | \f | |
693f8191 | 115 | /* How to process the various reloc types. */ |
dae31cf5 | 116 | |
fa965415 | 117 | static bfd_reloc_status_type |
3a1de3cc PS |
118 | reloc_nil PARAMS ((bfd *, arelent *, asymbol *, PTR, |
119 | asection *, bfd *, char **)); | |
120 | ||
121 | static bfd_reloc_status_type | |
122 | reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message) | |
fa965415 KR |
123 | bfd *abfd; |
124 | arelent *reloc; | |
125 | asymbol *sym; | |
126 | PTR data; | |
127 | asection *sec; | |
128 | bfd *output_bfd; | |
3a1de3cc | 129 | char **error_message; |
fa965415 KR |
130 | { |
131 | return bfd_reloc_ok; | |
132 | } | |
133 | ||
693f8191 KR |
134 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
135 | from smaller values. Start with zero, widen, *then* decrement. */ | |
136 | #define MINUS_ONE (((bfd_vma)0) - 1) | |
137 | ||
138 | static reloc_howto_type alpha_howto_table[] = | |
dae31cf5 | 139 | { |
693f8191 KR |
140 | /* Reloc type 0 is ignored by itself. However, it appears after a |
141 | GPDISP reloc to identify the location where the low order 16 bits | |
142 | of the gp register are loaded. */ | |
143 | HOWTO (ALPHA_R_IGNORE, /* type */ | |
144 | 0, /* rightshift */ | |
145 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
146 | 8, /* bitsize */ | |
147 | true, /* pc_relative */ | |
148 | 0, /* bitpos */ | |
149 | complain_overflow_dont, /* complain_on_overflow */ | |
fa965415 | 150 | reloc_nil, /* special_function */ |
693f8191 | 151 | "IGNORE", /* name */ |
fa965415 | 152 | true, /* partial_inplace */ |
693f8191 KR |
153 | 0, /* src_mask */ |
154 | 0, /* dst_mask */ | |
155 | true), /* pcrel_offset */ | |
156 | ||
157 | /* A 32 bit reference to a symbol. */ | |
158 | HOWTO (ALPHA_R_REFLONG, /* type */ | |
159 | 0, /* rightshift */ | |
160 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
161 | 32, /* bitsize */ | |
162 | false, /* pc_relative */ | |
163 | 0, /* bitpos */ | |
164 | complain_overflow_bitfield, /* complain_on_overflow */ | |
165 | 0, /* special_function */ | |
166 | "REFLONG", /* name */ | |
167 | true, /* partial_inplace */ | |
168 | 0xffffffff, /* src_mask */ | |
169 | 0xffffffff, /* dst_mask */ | |
170 | false), /* pcrel_offset */ | |
171 | ||
172 | /* A 64 bit reference to a symbol. */ | |
173 | HOWTO (ALPHA_R_REFQUAD, /* type */ | |
174 | 0, /* rightshift */ | |
175 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
176 | 64, /* bitsize */ | |
177 | false, /* pc_relative */ | |
178 | 0, /* bitpos */ | |
179 | complain_overflow_bitfield, /* complain_on_overflow */ | |
180 | 0, /* special_function */ | |
181 | "REFQUAD", /* name */ | |
182 | true, /* partial_inplace */ | |
183 | MINUS_ONE, /* src_mask */ | |
184 | MINUS_ONE, /* dst_mask */ | |
185 | false), /* pcrel_offset */ | |
186 | ||
187 | /* A 32 bit GP relative offset. This is just like REFLONG except | |
188 | that when the value is used the value of the gp register will be | |
189 | added in. */ | |
190 | HOWTO (ALPHA_R_GPREL32, /* type */ | |
191 | 0, /* rightshift */ | |
192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
193 | 32, /* bitsize */ | |
194 | false, /* pc_relative */ | |
195 | 0, /* bitpos */ | |
196 | complain_overflow_bitfield, /* complain_on_overflow */ | |
197 | 0, /* special_function */ | |
198 | "GPREL32", /* name */ | |
199 | true, /* partial_inplace */ | |
200 | 0xffffffff, /* src_mask */ | |
201 | 0xffffffff, /* dst_mask */ | |
202 | false), /* pcrel_offset */ | |
203 | ||
204 | /* Used for an instruction that refers to memory off the GP | |
205 | register. The offset is 16 bits of the 32 bit instruction. This | |
206 | reloc always seems to be against the .lita section. */ | |
207 | HOWTO (ALPHA_R_LITERAL, /* type */ | |
208 | 0, /* rightshift */ | |
209 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
210 | 16, /* bitsize */ | |
211 | false, /* pc_relative */ | |
212 | 0, /* bitpos */ | |
213 | complain_overflow_signed, /* complain_on_overflow */ | |
214 | 0, /* special_function */ | |
215 | "LITERAL", /* name */ | |
216 | true, /* partial_inplace */ | |
217 | 0xffff, /* src_mask */ | |
218 | 0xffff, /* dst_mask */ | |
219 | false), /* pcrel_offset */ | |
220 | ||
221 | /* This reloc only appears immediately following a LITERAL reloc. | |
222 | It identifies a use of the literal. It seems that the linker can | |
223 | use this to eliminate a portion of the .lita section. The symbol | |
224 | index is special: 1 means the literal address is in the base | |
225 | register of a memory format instruction; 2 means the literal | |
226 | address is in the byte offset register of a byte-manipulation | |
227 | instruction; 3 means the literal address is in the target | |
228 | register of a jsr instruction. This does not actually do any | |
229 | relocation. */ | |
230 | HOWTO (ALPHA_R_LITUSE, /* type */ | |
231 | 0, /* rightshift */ | |
232 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
233 | 32, /* bitsize */ | |
234 | false, /* pc_relative */ | |
235 | 0, /* bitpos */ | |
236 | complain_overflow_dont, /* complain_on_overflow */ | |
fa965415 | 237 | reloc_nil, /* special_function */ |
693f8191 KR |
238 | "LITUSE", /* name */ |
239 | false, /* partial_inplace */ | |
240 | 0, /* src_mask */ | |
241 | 0, /* dst_mask */ | |
242 | false), /* pcrel_offset */ | |
243 | ||
244 | /* Load the gp register. This is always used for a ldah instruction | |
245 | which loads the upper 16 bits of the gp register. The next reloc | |
246 | will be an IGNORE reloc which identifies the location of the lda | |
247 | instruction which loads the lower 16 bits. The symbol index of | |
248 | the GPDISP instruction appears to actually be the number of bytes | |
249 | between the ldah and lda instructions. This gives two different | |
250 | ways to determine where the lda instruction is; I don't know why | |
251 | both are used. The value to use for the relocation is the | |
252 | difference between the GP value and the current location; the | |
253 | load will always be done against a register holding the current | |
254 | address. */ | |
255 | HOWTO (ALPHA_R_GPDISP, /* type */ | |
256 | 16, /* rightshift */ | |
257 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
258 | 16, /* bitsize */ | |
259 | true, /* pc_relative */ | |
260 | 0, /* bitpos */ | |
261 | complain_overflow_dont, /* complain_on_overflow */ | |
fa965415 | 262 | reloc_nil, /* special_function */ |
693f8191 KR |
263 | "GPDISP", /* name */ |
264 | true, /* partial_inplace */ | |
265 | 0xffff, /* src_mask */ | |
266 | 0xffff, /* dst_mask */ | |
267 | true), /* pcrel_offset */ | |
268 | ||
269 | /* A 21 bit branch. The native assembler generates these for | |
270 | branches within the text segment, and also fills in the PC | |
271 | relative offset in the instruction. */ | |
272 | HOWTO (ALPHA_R_BRADDR, /* type */ | |
273 | 2, /* rightshift */ | |
274 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
275 | 21, /* bitsize */ | |
276 | true, /* pc_relative */ | |
277 | 0, /* bitpos */ | |
278 | complain_overflow_signed, /* complain_on_overflow */ | |
279 | 0, /* special_function */ | |
280 | "BRADDR", /* name */ | |
281 | true, /* partial_inplace */ | |
282 | 0x1fffff, /* src_mask */ | |
283 | 0x1fffff, /* dst_mask */ | |
284 | false), /* pcrel_offset */ | |
285 | ||
286 | /* A hint for a jump to a register. */ | |
287 | HOWTO (ALPHA_R_HINT, /* type */ | |
288 | 2, /* rightshift */ | |
289 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
290 | 14, /* bitsize */ | |
291 | true, /* pc_relative */ | |
292 | 0, /* bitpos */ | |
293 | complain_overflow_dont, /* complain_on_overflow */ | |
294 | 0, /* special_function */ | |
295 | "HINT", /* name */ | |
296 | true, /* partial_inplace */ | |
297 | 0x3fff, /* src_mask */ | |
298 | 0x3fff, /* dst_mask */ | |
299 | false), /* pcrel_offset */ | |
300 | ||
301 | /* 16 bit PC relative offset. */ | |
302 | HOWTO (ALPHA_R_SREL16, /* type */ | |
303 | 0, /* rightshift */ | |
304 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
305 | 16, /* bitsize */ | |
306 | true, /* pc_relative */ | |
307 | 0, /* bitpos */ | |
308 | complain_overflow_signed, /* complain_on_overflow */ | |
309 | 0, /* special_function */ | |
310 | "SREL16", /* name */ | |
311 | true, /* partial_inplace */ | |
312 | 0xffff, /* src_mask */ | |
313 | 0xffff, /* dst_mask */ | |
314 | false), /* pcrel_offset */ | |
315 | ||
316 | /* 32 bit PC relative offset. */ | |
317 | HOWTO (ALPHA_R_SREL32, /* type */ | |
318 | 0, /* rightshift */ | |
319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
320 | 32, /* bitsize */ | |
321 | true, /* pc_relative */ | |
322 | 0, /* bitpos */ | |
323 | complain_overflow_signed, /* complain_on_overflow */ | |
324 | 0, /* special_function */ | |
325 | "SREL32", /* name */ | |
326 | true, /* partial_inplace */ | |
327 | 0xffffffff, /* src_mask */ | |
328 | 0xffffffff, /* dst_mask */ | |
329 | false), /* pcrel_offset */ | |
330 | ||
331 | /* A 64 bit PC relative offset. */ | |
332 | HOWTO (ALPHA_R_SREL64, /* type */ | |
333 | 0, /* rightshift */ | |
334 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
335 | 64, /* bitsize */ | |
336 | true, /* pc_relative */ | |
337 | 0, /* bitpos */ | |
338 | complain_overflow_signed, /* complain_on_overflow */ | |
339 | 0, /* special_function */ | |
340 | "SREL64", /* name */ | |
341 | true, /* partial_inplace */ | |
342 | MINUS_ONE, /* src_mask */ | |
343 | MINUS_ONE, /* dst_mask */ | |
344 | false), /* pcrel_offset */ | |
345 | ||
346 | /* Push a value on the reloc evaluation stack. */ | |
347 | HOWTO (ALPHA_R_OP_PUSH, /* type */ | |
348 | 0, /* rightshift */ | |
349 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
350 | 0, /* bitsize */ | |
351 | false, /* pc_relative */ | |
352 | 0, /* bitpos */ | |
353 | complain_overflow_dont, /* complain_on_overflow */ | |
354 | 0, /* special_function */ | |
355 | "OP_PUSH", /* name */ | |
356 | false, /* partial_inplace */ | |
357 | 0, /* src_mask */ | |
358 | 0, /* dst_mask */ | |
359 | false), /* pcrel_offset */ | |
360 | ||
361 | /* Store the value from the stack at the given address. Store it in | |
362 | a bitfield of size r_size starting at bit position r_offset. */ | |
363 | HOWTO (ALPHA_R_OP_STORE, /* type */ | |
364 | 0, /* rightshift */ | |
365 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
366 | 64, /* bitsize */ | |
367 | false, /* pc_relative */ | |
368 | 0, /* bitpos */ | |
369 | complain_overflow_dont, /* complain_on_overflow */ | |
370 | 0, /* special_function */ | |
371 | "OP_STORE", /* name */ | |
372 | false, /* partial_inplace */ | |
373 | 0, /* src_mask */ | |
374 | MINUS_ONE, /* dst_mask */ | |
375 | false), /* pcrel_offset */ | |
376 | ||
377 | /* Subtract the reloc address from the value on the top of the | |
378 | relocation stack. */ | |
379 | HOWTO (ALPHA_R_OP_PSUB, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 0, /* bitsize */ | |
383 | false, /* pc_relative */ | |
384 | 0, /* bitpos */ | |
385 | complain_overflow_dont, /* complain_on_overflow */ | |
386 | 0, /* special_function */ | |
387 | "OP_PSUB", /* name */ | |
388 | false, /* partial_inplace */ | |
389 | 0, /* src_mask */ | |
390 | 0, /* dst_mask */ | |
391 | false), /* pcrel_offset */ | |
392 | ||
393 | /* Shift the value on the top of the relocation stack right by the | |
394 | given value. */ | |
395 | HOWTO (ALPHA_R_OP_PRSHIFT, /* type */ | |
396 | 0, /* rightshift */ | |
397 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
398 | 0, /* bitsize */ | |
399 | false, /* pc_relative */ | |
400 | 0, /* bitpos */ | |
401 | complain_overflow_dont, /* complain_on_overflow */ | |
402 | 0, /* special_function */ | |
403 | "OP_PRSHIFT", /* name */ | |
404 | false, /* partial_inplace */ | |
405 | 0, /* src_mask */ | |
406 | 0, /* dst_mask */ | |
407 | false), /* pcrel_offset */ | |
408 | ||
409 | /* Adjust the GP value for a new range in the object file. */ | |
410 | HOWTO (ALPHA_R_GPVALUE, /* type */ | |
411 | 0, /* rightshift */ | |
412 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
413 | 0, /* bitsize */ | |
414 | false, /* pc_relative */ | |
415 | 0, /* bitpos */ | |
416 | complain_overflow_dont, /* complain_on_overflow */ | |
417 | 0, /* special_function */ | |
418 | "GPVALUE", /* name */ | |
419 | false, /* partial_inplace */ | |
420 | 0, /* src_mask */ | |
421 | 0, /* dst_mask */ | |
422 | false) /* pcrel_offset */ | |
dae31cf5 ILT |
423 | }; |
424 | \f | |
3f048f7f ILT |
425 | /* Recognize an Alpha ECOFF file. */ |
426 | ||
2f3508ad | 427 | static const bfd_target * |
3f048f7f ILT |
428 | alpha_ecoff_object_p (abfd) |
429 | bfd *abfd; | |
430 | { | |
2f3508ad | 431 | static const bfd_target *ret; |
3f048f7f ILT |
432 | |
433 | ret = coff_object_p (abfd); | |
434 | ||
2f3508ad | 435 | if (ret != NULL) |
3f048f7f ILT |
436 | { |
437 | asection *sec; | |
438 | ||
439 | /* Alpha ECOFF has a .pdata section. The lnnoptr field of the | |
440 | .pdata section is the number of entries it contains. Each | |
441 | entry takes up 8 bytes. The number of entries is required | |
442 | since the section is aligned to a 16 byte boundary. When we | |
443 | link .pdata sections together, we do not want to include the | |
444 | alignment bytes. We handle this on input by faking the size | |
445 | of the .pdata section to remove the unwanted alignment bytes. | |
446 | On output we will set the lnnoptr field and force the | |
447 | alignment. */ | |
448 | sec = bfd_get_section_by_name (abfd, _PDATA); | |
449 | if (sec != (asection *) NULL) | |
450 | { | |
451 | bfd_size_type size; | |
452 | ||
453 | size = sec->line_filepos * 8; | |
454 | BFD_ASSERT (size == bfd_section_size (abfd, sec) | |
455 | || size + 8 == bfd_section_size (abfd, sec)); | |
456 | if (! bfd_set_section_size (abfd, sec, size)) | |
457 | return NULL; | |
458 | } | |
459 | } | |
460 | ||
461 | return ret; | |
462 | } | |
463 | ||
5f8f6d56 SC |
464 | /* See whether the magic number matches. */ |
465 | ||
466 | static boolean | |
dae31cf5 | 467 | alpha_ecoff_bad_format_hook (abfd, filehdr) |
5f8f6d56 SC |
468 | bfd *abfd; |
469 | PTR filehdr; | |
470 | { | |
471 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
472 | ||
dae31cf5 | 473 | if (ALPHA_ECOFF_BADMAG (*internal_f)) |
5f8f6d56 SC |
474 | return false; |
475 | ||
476 | return true; | |
477 | } | |
69645d10 ILT |
478 | |
479 | /* This is a hook called by coff_real_object_p to create any backend | |
480 | specific information. */ | |
481 | ||
482 | static PTR | |
483 | alpha_ecoff_mkobject_hook (abfd, filehdr, aouthdr) | |
484 | bfd *abfd; | |
485 | PTR filehdr; | |
486 | PTR aouthdr; | |
487 | { | |
488 | PTR ecoff; | |
489 | ||
490 | ecoff = _bfd_ecoff_mkobject_hook (abfd, filehdr, aouthdr); | |
491 | ||
492 | if (ecoff != NULL) | |
493 | { | |
494 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; | |
495 | ||
496 | /* Set additional BFD flags according to the object type from the | |
497 | machine specific file header flags. */ | |
498 | switch (internal_f->f_flags & F_ALPHA_OBJECT_TYPE_MASK) | |
499 | { | |
500 | case F_ALPHA_SHARABLE: | |
501 | abfd->flags |= DYNAMIC; | |
502 | break; | |
503 | case F_ALPHA_CALL_SHARED: | |
504 | /* Always executable if using shared libraries as the run time | |
505 | loader might resolve undefined references. */ | |
506 | abfd->flags |= (DYNAMIC | EXEC_P); | |
507 | break; | |
508 | } | |
509 | } | |
510 | return ecoff; | |
511 | } | |
693f8191 KR |
512 | \f |
513 | /* Reloc handling. */ | |
5f8f6d56 | 514 | |
693f8191 | 515 | /* Swap a reloc in. */ |
5f8f6d56 | 516 | |
693f8191 KR |
517 | static void |
518 | alpha_ecoff_swap_reloc_in (abfd, ext_ptr, intern) | |
5f8f6d56 | 519 | bfd *abfd; |
693f8191 KR |
520 | PTR ext_ptr; |
521 | struct internal_reloc *intern; | |
5f8f6d56 | 522 | { |
693f8191 KR |
523 | const RELOC *ext = (RELOC *) ext_ptr; |
524 | ||
525 | intern->r_vaddr = bfd_h_get_64 (abfd, (bfd_byte *) ext->r_vaddr); | |
526 | intern->r_symndx = bfd_h_get_32 (abfd, (bfd_byte *) ext->r_symndx); | |
527 | ||
528 | BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false); | |
529 | ||
530 | intern->r_type = ((ext->r_bits[0] & RELOC_BITS0_TYPE_LITTLE) | |
531 | >> RELOC_BITS0_TYPE_SH_LITTLE); | |
532 | intern->r_extern = (ext->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0; | |
533 | intern->r_offset = ((ext->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE) | |
534 | >> RELOC_BITS1_OFFSET_SH_LITTLE); | |
535 | /* Ignored the reserved bits. */ | |
536 | intern->r_size = ((ext->r_bits[3] & RELOC_BITS3_SIZE_LITTLE) | |
537 | >> RELOC_BITS3_SIZE_SH_LITTLE); | |
538 | ||
539 | if (intern->r_type == ALPHA_R_LITUSE | |
540 | || intern->r_type == ALPHA_R_GPDISP) | |
541 | { | |
542 | /* Handle the LITUSE and GPDISP relocs specially. Its symndx | |
543 | value is not actually a symbol index, but is instead a | |
544 | special code. We put the code in the r_size field, and | |
545 | clobber the symndx. */ | |
546 | if (intern->r_size != 0) | |
547 | abort (); | |
548 | intern->r_size = intern->r_symndx; | |
549 | intern->r_symndx = RELOC_SECTION_NONE; | |
550 | } | |
551 | else if (intern->r_type == ALPHA_R_IGNORE) | |
5f8f6d56 | 552 | { |
693f8191 KR |
553 | /* The IGNORE reloc generally follows a GPDISP reloc, and is |
554 | against the .lita section. The section is irrelevant. */ | |
555 | if (! intern->r_extern && | |
556 | (intern->r_symndx == RELOC_SECTION_NONE | |
557 | || intern->r_symndx == RELOC_SECTION_ABS)) | |
558 | abort (); | |
559 | if (! intern->r_extern && intern->r_symndx == RELOC_SECTION_LITA) | |
560 | intern->r_symndx = RELOC_SECTION_NONE; | |
5f8f6d56 | 561 | } |
693f8191 KR |
562 | } |
563 | ||
564 | /* Swap a reloc out. */ | |
5f8f6d56 | 565 | |
693f8191 KR |
566 | static void |
567 | alpha_ecoff_swap_reloc_out (abfd, intern, dst) | |
568 | bfd *abfd; | |
569 | const struct internal_reloc *intern; | |
570 | PTR dst; | |
571 | { | |
572 | RELOC *ext = (RELOC *) dst; | |
573 | long symndx; | |
574 | unsigned char size; | |
575 | ||
576 | /* Undo the hackery done in swap_reloc_in. */ | |
577 | if (intern->r_type == ALPHA_R_LITUSE | |
578 | || intern->r_type == ALPHA_R_GPDISP) | |
579 | { | |
580 | symndx = intern->r_size; | |
581 | size = 0; | |
582 | } | |
583 | else if (intern->r_type == ALPHA_R_IGNORE | |
584 | && ! intern->r_extern | |
585 | && intern->r_symndx == RELOC_SECTION_NONE) | |
586 | { | |
587 | symndx = RELOC_SECTION_LITA; | |
588 | size = intern->r_size; | |
589 | } | |
590 | else | |
591 | { | |
592 | symndx = intern->r_symndx; | |
593 | size = intern->r_size; | |
594 | } | |
dae31cf5 | 595 | |
693f8191 KR |
596 | BFD_ASSERT (intern->r_extern |
597 | || (intern->r_symndx >= 0 && intern->r_symndx <= 14)); | |
5f8f6d56 | 598 | |
693f8191 KR |
599 | bfd_h_put_64 (abfd, intern->r_vaddr, (bfd_byte *) ext->r_vaddr); |
600 | bfd_h_put_32 (abfd, symndx, (bfd_byte *) ext->r_symndx); | |
601 | ||
602 | BFD_ASSERT (abfd->xvec->header_byteorder_big_p == false); | |
603 | ||
604 | ext->r_bits[0] = ((intern->r_type << RELOC_BITS0_TYPE_SH_LITTLE) | |
605 | & RELOC_BITS0_TYPE_LITTLE); | |
606 | ext->r_bits[1] = ((intern->r_extern ? RELOC_BITS1_EXTERN_LITTLE : 0) | |
607 | | ((intern->r_offset << RELOC_BITS1_OFFSET_SH_LITTLE) | |
608 | & RELOC_BITS1_OFFSET_LITTLE)); | |
609 | ext->r_bits[2] = 0; | |
610 | ext->r_bits[3] = ((size << RELOC_BITS3_SIZE_SH_LITTLE) | |
611 | & RELOC_BITS3_SIZE_LITTLE); | |
5f8f6d56 SC |
612 | } |
613 | ||
693f8191 KR |
614 | /* Finish canonicalizing a reloc. Part of this is generic to all |
615 | ECOFF targets, and that part is in ecoff.c. The rest is done in | |
616 | this backend routine. It must fill in the howto field. */ | |
5f8f6d56 | 617 | |
693f8191 KR |
618 | static void |
619 | alpha_adjust_reloc_in (abfd, intern, rptr) | |
5f8f6d56 | 620 | bfd *abfd; |
693f8191 KR |
621 | const struct internal_reloc *intern; |
622 | arelent *rptr; | |
5f8f6d56 | 623 | { |
693f8191 KR |
624 | if (intern->r_type > ALPHA_R_GPVALUE) |
625 | abort (); | |
5f8f6d56 | 626 | |
693f8191 KR |
627 | switch (intern->r_type) |
628 | { | |
629 | case ALPHA_R_BRADDR: | |
630 | case ALPHA_R_SREL16: | |
631 | case ALPHA_R_SREL32: | |
632 | case ALPHA_R_SREL64: | |
633 | /* The PC relative relocs do not seem to use the section VMA as | |
634 | a negative addend. */ | |
635 | rptr->addend = 0; | |
636 | break; | |
5f8f6d56 | 637 | |
693f8191 KR |
638 | case ALPHA_R_GPREL32: |
639 | case ALPHA_R_LITERAL: | |
640 | /* Copy the gp value for this object file into the addend, to | |
641 | ensure that we are not confused by the linker. */ | |
642 | if (! intern->r_extern) | |
643 | rptr->addend += ecoff_data (abfd)->gp; | |
644 | break; | |
5f8f6d56 | 645 | |
693f8191 KR |
646 | case ALPHA_R_LITUSE: |
647 | case ALPHA_R_GPDISP: | |
648 | /* The LITUSE and GPDISP relocs do not use a symbol, or an | |
649 | addend, but they do use a special code. Put this code in the | |
650 | addend field. */ | |
651 | rptr->addend = intern->r_size; | |
652 | break; | |
653 | ||
654 | case ALPHA_R_OP_STORE: | |
655 | /* The STORE reloc needs the size and offset fields. We store | |
656 | them in the addend. */ | |
657 | BFD_ASSERT (intern->r_offset <= 256 && intern->r_size <= 256); | |
658 | rptr->addend = (intern->r_offset << 8) + intern->r_size; | |
659 | break; | |
660 | ||
661 | case ALPHA_R_OP_PUSH: | |
662 | case ALPHA_R_OP_PSUB: | |
663 | case ALPHA_R_OP_PRSHIFT: | |
664 | /* The PUSH, PSUB and PRSHIFT relocs do not actually use an | |
665 | address. I believe that the address supplied is really an | |
666 | addend. */ | |
667 | rptr->addend = intern->r_vaddr; | |
668 | break; | |
669 | ||
670 | case ALPHA_R_GPVALUE: | |
671 | /* Set the addend field to the new GP value. */ | |
672 | rptr->addend = intern->r_symndx + ecoff_data (abfd)->gp; | |
673 | break; | |
674 | ||
675 | case ALPHA_R_IGNORE: | |
676 | /* If the type is ALPHA_R_IGNORE, make sure this is a reference | |
677 | to the absolute section so that the reloc is ignored. For | |
678 | some reason the address of this reloc type is not adjusted by | |
679 | the section vma. We record the gp value for this object file | |
680 | here, for convenience when doing the GPDISP relocation. */ | |
69645d10 | 681 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
693f8191 KR |
682 | rptr->address = intern->r_vaddr; |
683 | rptr->addend = ecoff_data (abfd)->gp; | |
684 | break; | |
685 | ||
686 | default: | |
687 | break; | |
5f8f6d56 SC |
688 | } |
689 | ||
693f8191 | 690 | rptr->howto = &alpha_howto_table[intern->r_type]; |
5f8f6d56 | 691 | } |
5f8f6d56 | 692 | |
693f8191 KR |
693 | /* When writing out a reloc we need to pull some values back out of |
694 | the addend field into the reloc. This is roughly the reverse of | |
695 | alpha_adjust_reloc_in, except that there are several changes we do | |
696 | not need to undo. */ | |
5f8f6d56 SC |
697 | |
698 | static void | |
693f8191 | 699 | alpha_adjust_reloc_out (abfd, rel, intern) |
5f8f6d56 | 700 | bfd *abfd; |
693f8191 | 701 | const arelent *rel; |
dae31cf5 | 702 | struct internal_reloc *intern; |
5f8f6d56 | 703 | { |
693f8191 KR |
704 | switch (intern->r_type) |
705 | { | |
706 | case ALPHA_R_LITUSE: | |
707 | case ALPHA_R_GPDISP: | |
708 | intern->r_size = rel->addend; | |
709 | break; | |
710 | ||
711 | case ALPHA_R_OP_STORE: | |
712 | intern->r_size = rel->addend & 0xff; | |
713 | intern->r_offset = (rel->addend >> 8) & 0xff; | |
714 | break; | |
715 | ||
716 | case ALPHA_R_OP_PUSH: | |
717 | case ALPHA_R_OP_PSUB: | |
718 | case ALPHA_R_OP_PRSHIFT: | |
719 | intern->r_vaddr = rel->addend; | |
720 | break; | |
721 | ||
722 | case ALPHA_R_IGNORE: | |
723 | intern->r_vaddr = rel->address; | |
724 | if (intern->r_symndx == RELOC_SECTION_ABS) | |
725 | intern->r_symndx = RELOC_SECTION_NONE; | |
726 | break; | |
727 | ||
728 | default: | |
729 | break; | |
730 | } | |
731 | } | |
732 | ||
733 | /* The size of the stack for the relocation evaluator. */ | |
734 | #define RELOC_STACKSIZE (10) | |
735 | ||
736 | /* Alpha ECOFF relocs have a built in expression evaluator as well as | |
737 | other interdependencies. Rather than use a bunch of special | |
738 | functions and global variables, we use a single routine to do all | |
739 | the relocation for a section. I haven't yet worked out how the | |
740 | assembler is going to handle this. */ | |
741 | ||
742 | static bfd_byte * | |
743 | alpha_ecoff_get_relocated_section_contents (abfd, link_info, link_order, | |
744 | data, relocateable, symbols) | |
745 | bfd *abfd; | |
746 | struct bfd_link_info *link_info; | |
747 | struct bfd_link_order *link_order; | |
748 | bfd_byte *data; | |
749 | boolean relocateable; | |
750 | asymbol **symbols; | |
751 | { | |
752 | bfd *input_bfd = link_order->u.indirect.section->owner; | |
753 | asection *input_section = link_order->u.indirect.section; | |
326e32d7 | 754 | long reloc_size = bfd_get_reloc_upper_bound (input_bfd, input_section); |
a3a33af3 | 755 | arelent **reloc_vector = NULL; |
326e32d7 | 756 | long reloc_count; |
693f8191 KR |
757 | bfd *output_bfd = relocateable ? abfd : (bfd *) NULL; |
758 | bfd_vma gp; | |
759 | boolean gp_undefined; | |
760 | bfd_vma stack[RELOC_STACKSIZE]; | |
761 | int tos = 0; | |
762 | ||
326e32d7 ILT |
763 | if (reloc_size < 0) |
764 | goto error_return; | |
a3a33af3 ILT |
765 | reloc_vector = (arelent **) malloc (reloc_size); |
766 | if (reloc_vector == NULL && reloc_size != 0) | |
767 | { | |
768 | bfd_set_error (bfd_error_no_memory); | |
769 | goto error_return; | |
770 | } | |
771 | ||
693f8191 KR |
772 | if (! bfd_get_section_contents (input_bfd, input_section, data, |
773 | (file_ptr) 0, input_section->_raw_size)) | |
a3a33af3 | 774 | goto error_return; |
5f8f6d56 | 775 | |
693f8191 KR |
776 | /* The section size is not going to change. */ |
777 | input_section->_cooked_size = input_section->_raw_size; | |
778 | input_section->reloc_done = true; | |
779 | ||
326e32d7 ILT |
780 | reloc_count = bfd_canonicalize_reloc (input_bfd, input_section, |
781 | reloc_vector, symbols); | |
782 | if (reloc_count < 0) | |
783 | goto error_return; | |
784 | if (reloc_count == 0) | |
a3a33af3 | 785 | goto successful_return; |
693f8191 KR |
786 | |
787 | /* Get the GP value for the output BFD. */ | |
788 | gp_undefined = false; | |
789 | if (ecoff_data (abfd)->gp == 0) | |
5f8f6d56 | 790 | { |
693f8191 KR |
791 | if (relocateable != false) |
792 | { | |
793 | asection *sec; | |
794 | bfd_vma lo; | |
795 | ||
796 | /* Make up a value. */ | |
797 | lo = (bfd_vma) -1; | |
798 | for (sec = abfd->sections; sec != NULL; sec = sec->next) | |
799 | { | |
800 | if (sec->vma < lo | |
801 | && (strcmp (sec->name, ".sbss") == 0 | |
802 | || strcmp (sec->name, ".sdata") == 0 | |
803 | || strcmp (sec->name, ".lit4") == 0 | |
804 | || strcmp (sec->name, ".lit8") == 0 | |
805 | || strcmp (sec->name, ".lita") == 0)) | |
806 | lo = sec->vma; | |
807 | } | |
808 | ecoff_data (abfd)->gp = lo + 0x8000; | |
809 | } | |
810 | else | |
811 | { | |
812 | struct bfd_link_hash_entry *h; | |
813 | ||
814 | h = bfd_link_hash_lookup (link_info->hash, "_gp", false, false, | |
815 | true); | |
816 | if (h == (struct bfd_link_hash_entry *) NULL | |
817 | || h->type != bfd_link_hash_defined) | |
818 | gp_undefined = true; | |
819 | else | |
820 | ecoff_data (abfd)->gp = (h->u.def.value | |
821 | + h->u.def.section->output_section->vma | |
822 | + h->u.def.section->output_offset); | |
823 | } | |
5f8f6d56 | 824 | } |
693f8191 KR |
825 | gp = ecoff_data (abfd)->gp; |
826 | ||
827 | for (; *reloc_vector != (arelent *) NULL; reloc_vector++) | |
5f8f6d56 | 828 | { |
693f8191 KR |
829 | arelent *rel; |
830 | bfd_reloc_status_type r; | |
831 | char *err; | |
832 | ||
833 | rel = *reloc_vector; | |
834 | r = bfd_reloc_ok; | |
835 | switch (rel->howto->type) | |
836 | { | |
837 | case ALPHA_R_IGNORE: | |
838 | rel->address += input_section->output_offset; | |
839 | break; | |
840 | ||
841 | case ALPHA_R_REFLONG: | |
842 | case ALPHA_R_REFQUAD: | |
843 | case ALPHA_R_BRADDR: | |
844 | case ALPHA_R_HINT: | |
845 | case ALPHA_R_SREL16: | |
846 | case ALPHA_R_SREL32: | |
847 | case ALPHA_R_SREL64: | |
848 | if (relocateable | |
849 | && ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0) | |
850 | { | |
851 | rel->address += input_section->output_offset; | |
852 | break; | |
853 | } | |
854 | r = bfd_perform_relocation (input_bfd, rel, data, input_section, | |
855 | output_bfd, &err); | |
856 | break; | |
857 | ||
858 | case ALPHA_R_GPREL32: | |
859 | /* This relocation is used in a switch table. It is a 32 | |
860 | bit offset from the current GP value. We must adjust it | |
861 | by the different between the original GP value and the | |
862 | current GP value. The original GP value is stored in the | |
863 | addend. We adjust the addend and let | |
864 | bfd_perform_relocation finish the job. */ | |
865 | rel->addend -= gp; | |
866 | r = bfd_perform_relocation (input_bfd, rel, data, input_section, | |
867 | output_bfd, &err); | |
868 | if (r == bfd_reloc_ok && gp_undefined) | |
869 | { | |
870 | r = bfd_reloc_dangerous; | |
871 | err = (char *) "GP relative relocation used when GP not defined"; | |
872 | } | |
873 | break; | |
874 | ||
875 | case ALPHA_R_LITERAL: | |
876 | /* This is a reference to a literal value, generally | |
877 | (always?) in the .lita section. This is a 16 bit GP | |
878 | relative relocation. Sometimes the subsequent reloc is a | |
879 | LITUSE reloc, which indicates how this reloc is used. | |
880 | This sometimes permits rewriting the two instructions | |
881 | referred to by the LITERAL and the LITUSE into different | |
882 | instructions which do not refer to .lita. This can save | |
883 | a memory reference, and permits removing a value from | |
884 | .lita thus saving GP relative space. | |
885 | ||
886 | We do not these optimizations. To do them we would need | |
887 | to arrange to link the .lita section first, so that by | |
888 | the time we got here we would know the final values to | |
889 | use. This would not be particularly difficult, but it is | |
890 | not currently implemented. */ | |
891 | ||
892 | { | |
893 | unsigned long insn; | |
894 | ||
895 | /* I believe that the LITERAL reloc will only apply to a | |
fa965415 | 896 | ldq or ldl instruction, so check my assumption. */ |
693f8191 | 897 | insn = bfd_get_32 (input_bfd, data + rel->address); |
fa965415 KR |
898 | BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29 |
899 | || ((insn >> 26) & 0x3f) == 0x28); | |
693f8191 KR |
900 | |
901 | rel->addend -= gp; | |
902 | r = bfd_perform_relocation (input_bfd, rel, data, input_section, | |
903 | output_bfd, &err); | |
904 | if (r == bfd_reloc_ok && gp_undefined) | |
905 | { | |
906 | r = bfd_reloc_dangerous; | |
907 | err = | |
908 | (char *) "GP relative relocation used when GP not defined"; | |
909 | } | |
910 | } | |
911 | break; | |
912 | ||
913 | case ALPHA_R_LITUSE: | |
914 | /* See ALPHA_R_LITERAL above for the uses of this reloc. It | |
915 | does not cause anything to happen, itself. */ | |
916 | rel->address += input_section->output_offset; | |
917 | break; | |
918 | ||
919 | case ALPHA_R_GPDISP: | |
920 | /* This marks the ldah of an ldah/lda pair which loads the | |
921 | gp register with the difference of the gp value and the | |
922 | current location. The second of the pair is r_size bytes | |
923 | ahead, and is marked with an ALPHA_R_IGNORE reloc. */ | |
924 | { | |
925 | unsigned long insn1, insn2; | |
926 | bfd_vma addend; | |
927 | ||
928 | BFD_ASSERT (reloc_vector[1] != NULL | |
929 | && reloc_vector[1]->howto->type == ALPHA_R_IGNORE | |
930 | && (rel->address + rel->addend | |
931 | == reloc_vector[1]->address)); | |
932 | ||
933 | /* Get the two instructions. */ | |
934 | insn1 = bfd_get_32 (input_bfd, data + rel->address); | |
935 | insn2 = bfd_get_32 (input_bfd, data + rel->address + rel->addend); | |
936 | ||
937 | BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */ | |
938 | BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */ | |
939 | ||
940 | /* Get the existing addend. We must account for the sign | |
941 | extension done by lda and ldah. */ | |
942 | addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff); | |
943 | if (insn1 & 0x8000) | |
944 | { | |
945 | addend -= 0x80000000; | |
946 | addend -= 0x80000000; | |
947 | } | |
948 | if (insn2 & 0x8000) | |
949 | addend -= 0x10000; | |
950 | ||
951 | /* The existing addend includes the different between the | |
952 | gp of the input BFD and the address in the input BFD. | |
953 | Subtract this out. */ | |
954 | addend -= (reloc_vector[1]->addend | |
955 | - (input_section->vma + rel->address)); | |
956 | ||
957 | /* Now add in the final gp value, and subtract out the | |
958 | final address. */ | |
959 | addend += (gp | |
960 | - (input_section->output_section->vma | |
961 | + input_section->output_offset | |
962 | + rel->address)); | |
963 | ||
964 | /* Change the instructions, accounting for the sign | |
965 | extension, and write them out. */ | |
966 | if (addend & 0x8000) | |
967 | addend += 0x10000; | |
968 | insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff); | |
969 | insn2 = (insn2 & 0xffff0000) | (addend & 0xffff); | |
970 | ||
971 | bfd_put_32 (input_bfd, (bfd_vma) insn1, data + rel->address); | |
972 | bfd_put_32 (input_bfd, (bfd_vma) insn2, | |
973 | data + rel->address + rel->addend); | |
974 | ||
975 | rel->address += input_section->output_offset; | |
976 | } | |
977 | break; | |
978 | ||
979 | case ALPHA_R_OP_PUSH: | |
980 | /* Push a value on the reloc evaluation stack. */ | |
981 | { | |
982 | asymbol *symbol; | |
983 | bfd_vma relocation; | |
984 | ||
985 | if (relocateable) | |
986 | { | |
987 | rel->address += input_section->output_offset; | |
988 | break; | |
989 | } | |
990 | ||
991 | /* Figure out the relocation of this symbol. */ | |
992 | symbol = *rel->sym_ptr_ptr; | |
993 | ||
69645d10 | 994 | if (bfd_is_und_section (symbol->section)) |
693f8191 KR |
995 | r = bfd_reloc_undefined; |
996 | ||
997 | if (bfd_is_com_section (symbol->section)) | |
998 | relocation = 0; | |
999 | else | |
1000 | relocation = symbol->value; | |
1001 | relocation += symbol->section->output_section->vma; | |
1002 | relocation += symbol->section->output_offset; | |
1003 | relocation += rel->addend; | |
1004 | ||
1005 | if (tos >= RELOC_STACKSIZE) | |
1006 | abort (); | |
1007 | ||
1008 | stack[tos++] = relocation; | |
1009 | } | |
1010 | break; | |
1011 | ||
1012 | case ALPHA_R_OP_STORE: | |
1013 | /* Store a value from the reloc stack into a bitfield. */ | |
1014 | { | |
1015 | bfd_vma val; | |
1016 | int offset, size; | |
1017 | ||
1018 | if (relocateable) | |
1019 | { | |
1020 | rel->address += input_section->output_offset; | |
1021 | break; | |
1022 | } | |
1023 | ||
1024 | if (tos == 0) | |
1025 | abort (); | |
1026 | ||
1027 | /* The offset and size for this reloc are encoded into the | |
1028 | addend field by alpha_adjust_reloc_in. */ | |
1029 | offset = (rel->addend >> 8) & 0xff; | |
1030 | size = rel->addend & 0xff; | |
1031 | ||
1032 | val = bfd_get_64 (abfd, data + rel->address); | |
1033 | val &=~ (((1 << size) - 1) << offset); | |
1034 | val |= (stack[--tos] & ((1 << size) - 1)) << offset; | |
1035 | bfd_put_64 (abfd, val, data + rel->address); | |
1036 | } | |
1037 | break; | |
1038 | ||
1039 | case ALPHA_R_OP_PSUB: | |
1040 | /* Subtract a value from the top of the stack. */ | |
1041 | { | |
1042 | asymbol *symbol; | |
1043 | bfd_vma relocation; | |
1044 | ||
1045 | if (relocateable) | |
1046 | { | |
1047 | rel->address += input_section->output_offset; | |
1048 | break; | |
1049 | } | |
1050 | ||
1051 | /* Figure out the relocation of this symbol. */ | |
1052 | symbol = *rel->sym_ptr_ptr; | |
1053 | ||
69645d10 | 1054 | if (bfd_is_und_section (symbol->section)) |
693f8191 KR |
1055 | r = bfd_reloc_undefined; |
1056 | ||
1057 | if (bfd_is_com_section (symbol->section)) | |
1058 | relocation = 0; | |
1059 | else | |
1060 | relocation = symbol->value; | |
1061 | relocation += symbol->section->output_section->vma; | |
1062 | relocation += symbol->section->output_offset; | |
1063 | relocation += rel->addend; | |
1064 | ||
1065 | if (tos == 0) | |
1066 | abort (); | |
1067 | ||
1068 | stack[tos - 1] -= relocation; | |
1069 | } | |
1070 | break; | |
1071 | ||
1072 | case ALPHA_R_OP_PRSHIFT: | |
1073 | /* Shift the value on the top of the stack. */ | |
1074 | { | |
1075 | asymbol *symbol; | |
1076 | bfd_vma relocation; | |
1077 | ||
1078 | if (relocateable) | |
1079 | { | |
1080 | rel->address += input_section->output_offset; | |
1081 | break; | |
1082 | } | |
1083 | ||
1084 | /* Figure out the relocation of this symbol. */ | |
1085 | symbol = *rel->sym_ptr_ptr; | |
1086 | ||
69645d10 | 1087 | if (bfd_is_und_section (symbol->section)) |
693f8191 KR |
1088 | r = bfd_reloc_undefined; |
1089 | ||
1090 | if (bfd_is_com_section (symbol->section)) | |
1091 | relocation = 0; | |
1092 | else | |
1093 | relocation = symbol->value; | |
1094 | relocation += symbol->section->output_section->vma; | |
1095 | relocation += symbol->section->output_offset; | |
1096 | relocation += rel->addend; | |
1097 | ||
1098 | if (tos == 0) | |
1099 | abort (); | |
1100 | ||
1101 | stack[tos - 1] >>= relocation; | |
1102 | } | |
1103 | break; | |
1104 | ||
1105 | case ALPHA_R_GPVALUE: | |
1106 | /* I really don't know if this does the right thing. */ | |
1107 | gp = rel->addend; | |
1108 | gp_undefined = false; | |
1109 | break; | |
1110 | ||
1111 | default: | |
1112 | abort (); | |
1113 | } | |
1114 | ||
1115 | if (relocateable) | |
1116 | { | |
1117 | asection *os = input_section->output_section; | |
1118 | ||
1119 | /* A partial link, so keep the relocs. */ | |
1120 | os->orelocation[os->reloc_count] = rel; | |
1121 | os->reloc_count++; | |
1122 | } | |
1123 | ||
1124 | if (r != bfd_reloc_ok) | |
1125 | { | |
1126 | switch (r) | |
1127 | { | |
1128 | case bfd_reloc_undefined: | |
1129 | if (! ((*link_info->callbacks->undefined_symbol) | |
1130 | (link_info, bfd_asymbol_name (*rel->sym_ptr_ptr), | |
1131 | input_bfd, input_section, rel->address))) | |
a3a33af3 | 1132 | goto error_return; |
693f8191 KR |
1133 | break; |
1134 | case bfd_reloc_dangerous: | |
1135 | if (! ((*link_info->callbacks->reloc_dangerous) | |
1136 | (link_info, err, input_bfd, input_section, | |
1137 | rel->address))) | |
a3a33af3 | 1138 | goto error_return; |
693f8191 KR |
1139 | break; |
1140 | case bfd_reloc_overflow: | |
1141 | if (! ((*link_info->callbacks->reloc_overflow) | |
4991ebb9 ILT |
1142 | (link_info, bfd_asymbol_name (*rel->sym_ptr_ptr), |
1143 | rel->howto->name, rel->addend, input_bfd, | |
1144 | input_section, rel->address))) | |
a3a33af3 | 1145 | goto error_return; |
693f8191 KR |
1146 | break; |
1147 | case bfd_reloc_outofrange: | |
1148 | default: | |
1149 | abort (); | |
1150 | break; | |
1151 | } | |
1152 | } | |
5f8f6d56 | 1153 | } |
693f8191 KR |
1154 | |
1155 | if (tos != 0) | |
1156 | abort (); | |
1157 | ||
a3a33af3 ILT |
1158 | successful_return: |
1159 | if (reloc_vector != NULL) | |
1160 | free (reloc_vector); | |
693f8191 | 1161 | return data; |
a3a33af3 ILT |
1162 | |
1163 | error_return: | |
1164 | if (reloc_vector != NULL) | |
1165 | free (reloc_vector); | |
1166 | return NULL; | |
5f8f6d56 SC |
1167 | } |
1168 | ||
693f8191 | 1169 | /* Get the howto structure for a generic reloc type. */ |
5f8f6d56 | 1170 | |
a5655244 | 1171 | static reloc_howto_type * |
693f8191 | 1172 | alpha_bfd_reloc_type_lookup (abfd, code) |
5f8f6d56 | 1173 | bfd *abfd; |
693f8191 | 1174 | bfd_reloc_code_real_type code; |
5f8f6d56 | 1175 | { |
693f8191 | 1176 | int alpha_type; |
5f8f6d56 | 1177 | |
693f8191 | 1178 | switch (code) |
5f8f6d56 | 1179 | { |
693f8191 KR |
1180 | case BFD_RELOC_32: |
1181 | alpha_type = ALPHA_R_REFLONG; | |
1182 | break; | |
1183 | case BFD_RELOC_64: | |
a3a33af3 | 1184 | case BFD_RELOC_CTOR: |
693f8191 KR |
1185 | alpha_type = ALPHA_R_REFQUAD; |
1186 | break; | |
1187 | case BFD_RELOC_GPREL32: | |
1188 | alpha_type = ALPHA_R_GPREL32; | |
1189 | break; | |
1190 | case BFD_RELOC_ALPHA_LITERAL: | |
1191 | alpha_type = ALPHA_R_LITERAL; | |
1192 | break; | |
1193 | case BFD_RELOC_ALPHA_LITUSE: | |
1194 | alpha_type = ALPHA_R_LITUSE; | |
1195 | break; | |
1196 | case BFD_RELOC_ALPHA_GPDISP_HI16: | |
1197 | alpha_type = ALPHA_R_GPDISP; | |
1198 | break; | |
1199 | case BFD_RELOC_ALPHA_GPDISP_LO16: | |
1200 | alpha_type = ALPHA_R_IGNORE; | |
1201 | break; | |
1202 | case BFD_RELOC_23_PCREL_S2: | |
1203 | alpha_type = ALPHA_R_BRADDR; | |
1204 | break; | |
1205 | case BFD_RELOC_ALPHA_HINT: | |
1206 | alpha_type = ALPHA_R_HINT; | |
1207 | break; | |
1208 | case BFD_RELOC_16_PCREL: | |
1209 | alpha_type = ALPHA_R_SREL16; | |
1210 | break; | |
1211 | case BFD_RELOC_32_PCREL: | |
1212 | alpha_type = ALPHA_R_SREL32; | |
1213 | break; | |
1214 | case BFD_RELOC_64_PCREL: | |
1215 | alpha_type = ALPHA_R_SREL64; | |
1216 | break; | |
1217 | #if 0 | |
1218 | case ???: | |
1219 | alpha_type = ALPHA_R_OP_PUSH; | |
1220 | break; | |
1221 | case ???: | |
1222 | alpha_type = ALPHA_R_OP_STORE; | |
1223 | break; | |
1224 | case ???: | |
1225 | alpha_type = ALPHA_R_OP_PSUB; | |
1226 | break; | |
1227 | case ???: | |
1228 | alpha_type = ALPHA_R_OP_PRSHIFT; | |
1229 | break; | |
1230 | case ???: | |
1231 | alpha_type = ALPHA_R_GPVALUE; | |
1232 | break; | |
1233 | #endif | |
1234 | default: | |
a5655244 | 1235 | return (reloc_howto_type *) NULL; |
693f8191 KR |
1236 | } |
1237 | ||
1238 | return &alpha_howto_table[alpha_type]; | |
1239 | } | |
1240 | \f | |
1241 | /* A helper routine for alpha_relocate_section which converts an | |
1242 | external reloc when generating relocateable output. Returns the | |
1243 | relocation amount. */ | |
1244 | ||
1245 | static bfd_vma | |
1246 | alpha_convert_external_reloc (output_bfd, info, input_bfd, ext_rel, h) | |
1247 | bfd *output_bfd; | |
1248 | struct bfd_link_info *info; | |
1249 | bfd *input_bfd; | |
1250 | struct external_reloc *ext_rel; | |
1251 | struct ecoff_link_hash_entry *h; | |
1252 | { | |
1253 | unsigned long r_symndx; | |
1254 | bfd_vma relocation; | |
1255 | ||
1256 | BFD_ASSERT (info->relocateable); | |
1257 | ||
a5655244 ILT |
1258 | if (h->root.type == bfd_link_hash_defined |
1259 | || h->root.type == bfd_link_hash_defweak) | |
693f8191 KR |
1260 | { |
1261 | asection *hsec; | |
1262 | const char *name; | |
1263 | ||
1264 | /* This symbol is defined in the output. Convert the reloc from | |
1265 | being against the symbol to being against the section. */ | |
1266 | ||
1267 | /* Clear the r_extern bit. */ | |
1268 | ext_rel->r_bits[1] &=~ RELOC_BITS1_EXTERN_LITTLE; | |
1269 | ||
1270 | /* Compute a new r_symndx value. */ | |
1271 | hsec = h->root.u.def.section; | |
1272 | name = bfd_get_section_name (output_bfd, hsec->output_section); | |
1273 | ||
1274 | r_symndx = -1; | |
1275 | switch (name[1]) | |
1276 | { | |
1277 | case 'A': | |
1278 | if (strcmp (name, "*ABS*") == 0) | |
1279 | r_symndx = RELOC_SECTION_ABS; | |
1280 | break; | |
1281 | case 'b': | |
1282 | if (strcmp (name, ".bss") == 0) | |
1283 | r_symndx = RELOC_SECTION_BSS; | |
1284 | break; | |
1285 | case 'd': | |
1286 | if (strcmp (name, ".data") == 0) | |
1287 | r_symndx = RELOC_SECTION_DATA; | |
1288 | break; | |
1289 | case 'f': | |
1290 | if (strcmp (name, ".fini") == 0) | |
1291 | r_symndx = RELOC_SECTION_FINI; | |
1292 | break; | |
1293 | case 'i': | |
1294 | if (strcmp (name, ".init") == 0) | |
1295 | r_symndx = RELOC_SECTION_INIT; | |
1296 | break; | |
1297 | case 'l': | |
1298 | if (strcmp (name, ".lita") == 0) | |
1299 | r_symndx = RELOC_SECTION_LITA; | |
1300 | else if (strcmp (name, ".lit8") == 0) | |
1301 | r_symndx = RELOC_SECTION_LIT8; | |
1302 | else if (strcmp (name, ".lit4") == 0) | |
1303 | r_symndx = RELOC_SECTION_LIT4; | |
1304 | break; | |
1305 | case 'p': | |
1306 | if (strcmp (name, ".pdata") == 0) | |
1307 | r_symndx = RELOC_SECTION_PDATA; | |
1308 | break; | |
1309 | case 'r': | |
1310 | if (strcmp (name, ".rdata") == 0) | |
1311 | r_symndx = RELOC_SECTION_RDATA; | |
a877f591 ILT |
1312 | else if (strcmp (name, ".rconst") == 0) |
1313 | r_symndx = RELOC_SECTION_RCONST; | |
693f8191 KR |
1314 | break; |
1315 | case 's': | |
1316 | if (strcmp (name, ".sdata") == 0) | |
1317 | r_symndx = RELOC_SECTION_SDATA; | |
1318 | else if (strcmp (name, ".sbss") == 0) | |
1319 | r_symndx = RELOC_SECTION_SBSS; | |
1320 | break; | |
1321 | case 't': | |
1322 | if (strcmp (name, ".text") == 0) | |
1323 | r_symndx = RELOC_SECTION_TEXT; | |
1324 | break; | |
1325 | case 'x': | |
1326 | if (strcmp (name, ".xdata") == 0) | |
1327 | r_symndx = RELOC_SECTION_XDATA; | |
1328 | break; | |
1329 | } | |
1330 | ||
1331 | if (r_symndx == -1) | |
1332 | abort (); | |
1333 | ||
1334 | /* Add the section VMA and the symbol value. */ | |
1335 | relocation = (h->root.u.def.value | |
1336 | + hsec->output_section->vma | |
1337 | + hsec->output_offset); | |
5f8f6d56 | 1338 | } |
5f8f6d56 SC |
1339 | else |
1340 | { | |
693f8191 KR |
1341 | /* Change the symndx value to the right one for |
1342 | the output BFD. */ | |
1343 | r_symndx = h->indx; | |
1344 | if (r_symndx == -1) | |
1345 | { | |
1346 | /* Caller must give an error. */ | |
1347 | r_symndx = 0; | |
1348 | } | |
1349 | relocation = 0; | |
5f8f6d56 | 1350 | } |
693f8191 KR |
1351 | |
1352 | /* Write out the new r_symndx value. */ | |
1353 | bfd_h_put_32 (input_bfd, (bfd_vma) r_symndx, | |
1354 | (bfd_byte *) ext_rel->r_symndx); | |
1355 | ||
1356 | return relocation; | |
1357 | } | |
1358 | ||
1359 | /* Relocate a section while linking an Alpha ECOFF file. This is | |
1360 | quite similar to get_relocated_section_contents. Perhaps they | |
1361 | could be combined somehow. */ | |
1362 | ||
1363 | static boolean | |
1364 | alpha_relocate_section (output_bfd, info, input_bfd, input_section, | |
1365 | contents, external_relocs) | |
1366 | bfd *output_bfd; | |
1367 | struct bfd_link_info *info; | |
1368 | bfd *input_bfd; | |
1369 | asection *input_section; | |
1370 | bfd_byte *contents; | |
1371 | PTR external_relocs; | |
1372 | { | |
1373 | asection **symndx_to_section; | |
1374 | struct ecoff_link_hash_entry **sym_hashes; | |
1375 | bfd_vma gp; | |
1376 | boolean gp_undefined; | |
1377 | bfd_vma stack[RELOC_STACKSIZE]; | |
1378 | int tos = 0; | |
1379 | struct external_reloc *ext_rel; | |
1380 | struct external_reloc *ext_rel_end; | |
1381 | ||
1382 | /* We keep a table mapping the symndx found in an internal reloc to | |
1383 | the appropriate section. This is faster than looking up the | |
1384 | section by name each time. */ | |
1385 | symndx_to_section = ecoff_data (input_bfd)->symndx_to_section; | |
1386 | if (symndx_to_section == (asection **) NULL) | |
1387 | { | |
1388 | symndx_to_section = ((asection **) | |
1389 | bfd_alloc (input_bfd, | |
1390 | (NUM_RELOC_SECTIONS | |
1391 | * sizeof (asection *)))); | |
9783e04a DM |
1392 | if (!symndx_to_section) |
1393 | { | |
d1ad85a6 | 1394 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1395 | return false; |
1396 | } | |
693f8191 KR |
1397 | |
1398 | symndx_to_section[RELOC_SECTION_NONE] = NULL; | |
1399 | symndx_to_section[RELOC_SECTION_TEXT] = | |
1400 | bfd_get_section_by_name (input_bfd, ".text"); | |
1401 | symndx_to_section[RELOC_SECTION_RDATA] = | |
1402 | bfd_get_section_by_name (input_bfd, ".rdata"); | |
1403 | symndx_to_section[RELOC_SECTION_DATA] = | |
1404 | bfd_get_section_by_name (input_bfd, ".data"); | |
1405 | symndx_to_section[RELOC_SECTION_SDATA] = | |
1406 | bfd_get_section_by_name (input_bfd, ".sdata"); | |
1407 | symndx_to_section[RELOC_SECTION_SBSS] = | |
1408 | bfd_get_section_by_name (input_bfd, ".sbss"); | |
1409 | symndx_to_section[RELOC_SECTION_BSS] = | |
1410 | bfd_get_section_by_name (input_bfd, ".bss"); | |
1411 | symndx_to_section[RELOC_SECTION_INIT] = | |
1412 | bfd_get_section_by_name (input_bfd, ".init"); | |
1413 | symndx_to_section[RELOC_SECTION_LIT8] = | |
1414 | bfd_get_section_by_name (input_bfd, ".lit8"); | |
1415 | symndx_to_section[RELOC_SECTION_LIT4] = | |
1416 | bfd_get_section_by_name (input_bfd, ".lit4"); | |
1417 | symndx_to_section[RELOC_SECTION_XDATA] = | |
1418 | bfd_get_section_by_name (input_bfd, ".xdata"); | |
1419 | symndx_to_section[RELOC_SECTION_PDATA] = | |
1420 | bfd_get_section_by_name (input_bfd, ".pdata"); | |
1421 | symndx_to_section[RELOC_SECTION_FINI] = | |
1422 | bfd_get_section_by_name (input_bfd, ".fini"); | |
1423 | symndx_to_section[RELOC_SECTION_LITA] = | |
1424 | bfd_get_section_by_name (input_bfd, ".lita"); | |
69645d10 | 1425 | symndx_to_section[RELOC_SECTION_ABS] = bfd_abs_section_ptr; |
a877f591 ILT |
1426 | symndx_to_section[RELOC_SECTION_RCONST] = |
1427 | bfd_get_section_by_name (input_bfd, ".rconst"); | |
693f8191 KR |
1428 | |
1429 | ecoff_data (input_bfd)->symndx_to_section = symndx_to_section; | |
1430 | } | |
1431 | ||
1432 | sym_hashes = ecoff_data (input_bfd)->sym_hashes; | |
1433 | ||
1434 | gp = ecoff_data (output_bfd)->gp; | |
1435 | if (gp == 0) | |
1436 | gp_undefined = true; | |
1437 | else | |
1438 | gp_undefined = false; | |
1439 | ||
1440 | BFD_ASSERT (output_bfd->xvec->header_byteorder_big_p == false); | |
1441 | BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p == false); | |
1442 | ||
1443 | ext_rel = (struct external_reloc *) external_relocs; | |
1444 | ext_rel_end = ext_rel + input_section->reloc_count; | |
1445 | for (; ext_rel < ext_rel_end; ext_rel++) | |
1446 | { | |
1447 | bfd_vma r_vaddr; | |
1448 | unsigned long r_symndx; | |
1449 | int r_type; | |
1450 | int r_extern; | |
1451 | int r_offset; | |
1452 | int r_size; | |
1453 | boolean relocatep; | |
1454 | boolean adjust_addrp; | |
1455 | boolean gp_usedp; | |
1456 | bfd_vma addend; | |
1457 | ||
1458 | r_vaddr = bfd_h_get_64 (input_bfd, (bfd_byte *) ext_rel->r_vaddr); | |
1459 | r_symndx = bfd_h_get_32 (input_bfd, (bfd_byte *) ext_rel->r_symndx); | |
1460 | ||
1461 | r_type = ((ext_rel->r_bits[0] & RELOC_BITS0_TYPE_LITTLE) | |
1462 | >> RELOC_BITS0_TYPE_SH_LITTLE); | |
1463 | r_extern = (ext_rel->r_bits[1] & RELOC_BITS1_EXTERN_LITTLE) != 0; | |
1464 | r_offset = ((ext_rel->r_bits[1] & RELOC_BITS1_OFFSET_LITTLE) | |
1465 | >> RELOC_BITS1_OFFSET_SH_LITTLE); | |
1466 | /* Ignored the reserved bits. */ | |
1467 | r_size = ((ext_rel->r_bits[3] & RELOC_BITS3_SIZE_LITTLE) | |
1468 | >> RELOC_BITS3_SIZE_SH_LITTLE); | |
1469 | ||
1470 | relocatep = false; | |
1471 | adjust_addrp = true; | |
1472 | gp_usedp = false; | |
1473 | addend = 0; | |
1474 | ||
1475 | switch (r_type) | |
1476 | { | |
1477 | default: | |
1478 | abort (); | |
1479 | ||
1480 | case ALPHA_R_IGNORE: | |
1481 | /* This reloc appears after a GPDISP reloc. It marks the | |
1482 | position of the second instruction to be altered by the | |
1483 | GPDISP reloc, but is not otherwise used for anything. | |
1484 | For some reason, the address of the relocation does not | |
1485 | appear to include the section VMA, unlike the other | |
1486 | relocation types. */ | |
1487 | if (info->relocateable) | |
1488 | bfd_h_put_64 (input_bfd, | |
1489 | input_section->output_offset + r_vaddr, | |
1490 | (bfd_byte *) ext_rel->r_vaddr); | |
1491 | adjust_addrp = false; | |
1492 | break; | |
1493 | ||
1494 | case ALPHA_R_REFLONG: | |
1495 | case ALPHA_R_REFQUAD: | |
1496 | case ALPHA_R_BRADDR: | |
1497 | case ALPHA_R_HINT: | |
1498 | case ALPHA_R_SREL16: | |
1499 | case ALPHA_R_SREL32: | |
1500 | case ALPHA_R_SREL64: | |
1501 | relocatep = true; | |
1502 | break; | |
1503 | ||
1504 | case ALPHA_R_GPREL32: | |
1505 | /* This relocation is used in a switch table. It is a 32 | |
1506 | bit offset from the current GP value. We must adjust it | |
1507 | by the different between the original GP value and the | |
1508 | current GP value. */ | |
1509 | relocatep = true; | |
1510 | addend = ecoff_data (input_bfd)->gp - gp; | |
1511 | gp_usedp = true; | |
1512 | break; | |
1513 | ||
1514 | case ALPHA_R_LITERAL: | |
1515 | /* This is a reference to a literal value, generally | |
1516 | (always?) in the .lita section. This is a 16 bit GP | |
1517 | relative relocation. Sometimes the subsequent reloc is a | |
1518 | LITUSE reloc, which indicates how this reloc is used. | |
1519 | This sometimes permits rewriting the two instructions | |
1520 | referred to by the LITERAL and the LITUSE into different | |
1521 | instructions which do not refer to .lita. This can save | |
1522 | a memory reference, and permits removing a value from | |
1523 | .lita thus saving GP relative space. | |
1524 | ||
1525 | We do not these optimizations. To do them we would need | |
1526 | to arrange to link the .lita section first, so that by | |
1527 | the time we got here we would know the final values to | |
1528 | use. This would not be particularly difficult, but it is | |
1529 | not currently implemented. */ | |
1530 | ||
1531 | /* I believe that the LITERAL reloc will only apply to a ldq | |
9783e04a DM |
1532 | or ldl instruction, so check my assumption. */ |
1533 | { | |
1534 | unsigned long insn; | |
1535 | ||
1536 | insn = bfd_get_32 (input_bfd, | |
1537 | contents + r_vaddr - input_section->vma); | |
1538 | BFD_ASSERT (((insn >> 26) & 0x3f) == 0x29 | |
1539 | || ((insn >> 26) & 0x3f) == 0x28); | |
1540 | } | |
693f8191 KR |
1541 | |
1542 | relocatep = true; | |
1543 | addend = ecoff_data (input_bfd)->gp - gp; | |
1544 | gp_usedp = true; | |
1545 | break; | |
1546 | ||
1547 | case ALPHA_R_LITUSE: | |
1548 | /* See ALPHA_R_LITERAL above for the uses of this reloc. It | |
1549 | does not cause anything to happen, itself. */ | |
1550 | break; | |
1551 | ||
1552 | case ALPHA_R_GPDISP: | |
1553 | /* This marks the ldah of an ldah/lda pair which loads the | |
1554 | gp register with the difference of the gp value and the | |
1555 | current location. The second of the pair is r_symndx | |
1556 | bytes ahead, and is also marked with an ALPHA_R_IGNORE | |
1557 | reloc. */ | |
1558 | { | |
1559 | unsigned long insn1, insn2; | |
1560 | ||
1561 | BFD_ASSERT (ext_rel + 1 < ext_rel_end | |
1562 | && (((ext_rel + 1)->r_bits[0] | |
1563 | & RELOC_BITS0_TYPE_LITTLE) | |
1564 | >> RELOC_BITS0_TYPE_SH_LITTLE) == ALPHA_R_IGNORE | |
1565 | && (bfd_h_get_64 (input_bfd, | |
1566 | (bfd_byte *) (ext_rel + 1)->r_vaddr) | |
1567 | == r_vaddr - input_section->vma + r_symndx)); | |
1568 | ||
1569 | /* Get the two instructions. */ | |
1570 | insn1 = bfd_get_32 (input_bfd, | |
1571 | contents + r_vaddr - input_section->vma); | |
1572 | insn2 = bfd_get_32 (input_bfd, | |
1573 | (contents | |
1574 | + r_vaddr | |
1575 | - input_section->vma | |
1576 | + r_symndx)); | |
1577 | ||
1578 | BFD_ASSERT (((insn1 >> 26) & 0x3f) == 0x09); /* ldah */ | |
1579 | BFD_ASSERT (((insn2 >> 26) & 0x3f) == 0x08); /* lda */ | |
1580 | ||
1581 | /* Get the existing addend. We must account for the sign | |
1582 | extension done by lda and ldah. */ | |
1583 | addend = ((insn1 & 0xffff) << 16) + (insn2 & 0xffff); | |
1584 | if (insn1 & 0x8000) | |
1585 | { | |
1586 | /* This is addend -= 0x100000000 without causing an | |
1587 | integer overflow on a 32 bit host. */ | |
1588 | addend -= 0x80000000; | |
1589 | addend -= 0x80000000; | |
1590 | } | |
1591 | if (insn2 & 0x8000) | |
1592 | addend -= 0x10000; | |
1593 | ||
1594 | /* The existing addend includes the difference between the | |
1595 | gp of the input BFD and the address in the input BFD. | |
1596 | We want to change this to the difference between the | |
1597 | final GP and the final address. */ | |
1598 | addend += (gp | |
1599 | - ecoff_data (input_bfd)->gp | |
1600 | + input_section->vma | |
1601 | - (input_section->output_section->vma | |
1602 | + input_section->output_offset)); | |
1603 | ||
1604 | /* Change the instructions, accounting for the sign | |
1605 | extension, and write them out. */ | |
1606 | if (addend & 0x8000) | |
1607 | addend += 0x10000; | |
1608 | insn1 = (insn1 & 0xffff0000) | ((addend >> 16) & 0xffff); | |
1609 | insn2 = (insn2 & 0xffff0000) | (addend & 0xffff); | |
1610 | ||
1611 | bfd_put_32 (input_bfd, (bfd_vma) insn1, | |
1612 | contents + r_vaddr - input_section->vma); | |
1613 | bfd_put_32 (input_bfd, (bfd_vma) insn2, | |
1614 | contents + r_vaddr - input_section->vma + r_symndx); | |
1615 | ||
1616 | gp_usedp = true; | |
1617 | } | |
1618 | break; | |
1619 | ||
1620 | case ALPHA_R_OP_PUSH: | |
1621 | case ALPHA_R_OP_PSUB: | |
1622 | case ALPHA_R_OP_PRSHIFT: | |
1623 | /* Manipulate values on the reloc evaluation stack. The | |
1624 | r_vaddr field is not an address in input_section, it is | |
1625 | the current value (including any addend) of the object | |
1626 | being used. */ | |
1627 | if (! r_extern) | |
1628 | { | |
1629 | asection *s; | |
1630 | ||
1631 | s = symndx_to_section[r_symndx]; | |
1632 | if (s == (asection *) NULL) | |
1633 | abort (); | |
1634 | addend = s->output_section->vma + s->output_offset - s->vma; | |
1635 | } | |
1636 | else | |
1637 | { | |
1638 | struct ecoff_link_hash_entry *h; | |
1639 | ||
1640 | h = sym_hashes[r_symndx]; | |
1641 | if (h == (struct ecoff_link_hash_entry *) NULL) | |
1642 | abort (); | |
1643 | ||
1644 | if (! info->relocateable) | |
1645 | { | |
a5655244 ILT |
1646 | if (h->root.type == bfd_link_hash_defined |
1647 | || h->root.type == bfd_link_hash_defweak) | |
693f8191 KR |
1648 | addend = (h->root.u.def.value |
1649 | + h->root.u.def.section->output_section->vma | |
1650 | + h->root.u.def.section->output_offset); | |
1651 | else | |
1652 | { | |
1653 | /* Note that we pass the address as 0, since we | |
1654 | do not have a meaningful number for the | |
1655 | location within the section that is being | |
1656 | relocated. */ | |
1657 | if (! ((*info->callbacks->undefined_symbol) | |
1658 | (info, h->root.root.string, input_bfd, | |
1659 | input_section, (bfd_vma) 0))) | |
1660 | return false; | |
1661 | addend = 0; | |
1662 | } | |
1663 | } | |
1664 | else | |
1665 | { | |
1666 | if (h->root.type != bfd_link_hash_defined | |
a5655244 | 1667 | && h->root.type != bfd_link_hash_defweak |
693f8191 KR |
1668 | && h->indx == -1) |
1669 | { | |
1670 | /* This symbol is not being written out. Pass | |
1671 | the address as 0, as with undefined_symbol, | |
1672 | above. */ | |
1673 | if (! ((*info->callbacks->unattached_reloc) | |
1674 | (info, h->root.root.string, input_bfd, | |
1675 | input_section, (bfd_vma) 0))) | |
1676 | return false; | |
1677 | } | |
1678 | ||
1679 | addend = alpha_convert_external_reloc (output_bfd, info, | |
1680 | input_bfd, | |
1681 | ext_rel, h); | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | addend += r_vaddr; | |
1686 | ||
1687 | if (info->relocateable) | |
1688 | { | |
1689 | /* Adjust r_vaddr by the addend. */ | |
1690 | bfd_h_put_64 (input_bfd, addend, | |
1691 | (bfd_byte *) ext_rel->r_vaddr); | |
1692 | } | |
1693 | else | |
1694 | { | |
1695 | switch (r_type) | |
1696 | { | |
1697 | case ALPHA_R_OP_PUSH: | |
1698 | if (tos >= RELOC_STACKSIZE) | |
1699 | abort (); | |
1700 | stack[tos++] = addend; | |
1701 | break; | |
1702 | ||
1703 | case ALPHA_R_OP_PSUB: | |
1704 | if (tos == 0) | |
1705 | abort (); | |
1706 | stack[tos - 1] -= addend; | |
1707 | break; | |
1708 | ||
1709 | case ALPHA_R_OP_PRSHIFT: | |
1710 | if (tos == 0) | |
1711 | abort (); | |
1712 | stack[tos - 1] >>= addend; | |
1713 | break; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | adjust_addrp = false; | |
1718 | break; | |
1719 | ||
1720 | case ALPHA_R_OP_STORE: | |
1721 | /* Store a value from the reloc stack into a bitfield. If | |
1722 | we are generating relocateable output, all we do is | |
1723 | adjust the address of the reloc. */ | |
1724 | if (! info->relocateable) | |
1725 | { | |
a3a33af3 | 1726 | bfd_vma mask; |
693f8191 KR |
1727 | bfd_vma val; |
1728 | ||
1729 | if (tos == 0) | |
1730 | abort (); | |
1731 | ||
a3a33af3 ILT |
1732 | /* Get the relocation mask. The separate steps and the |
1733 | casts to bfd_vma are attempts to avoid a bug in the | |
1734 | Alpha OSF 1.3 C compiler. See reloc.c for more | |
1735 | details. */ | |
1736 | mask = 1; | |
1737 | mask <<= (bfd_vma) r_size; | |
1738 | mask -= 1; | |
1739 | ||
693f8191 KR |
1740 | /* FIXME: I don't know what kind of overflow checking, |
1741 | if any, should be done here. */ | |
1742 | val = bfd_get_64 (input_bfd, | |
1743 | contents + r_vaddr - input_section->vma); | |
a3a33af3 ILT |
1744 | val &=~ mask << (bfd_vma) r_offset; |
1745 | val |= (stack[--tos] & mask) << (bfd_vma) r_offset; | |
693f8191 KR |
1746 | bfd_put_64 (input_bfd, val, |
1747 | contents + r_vaddr - input_section->vma); | |
1748 | } | |
1749 | break; | |
1750 | ||
1751 | case ALPHA_R_GPVALUE: | |
1752 | /* I really don't know if this does the right thing. */ | |
1753 | gp = ecoff_data (input_bfd)->gp + r_symndx; | |
1754 | gp_undefined = false; | |
1755 | break; | |
1756 | } | |
1757 | ||
1758 | if (relocatep) | |
1759 | { | |
1760 | reloc_howto_type *howto; | |
1761 | struct ecoff_link_hash_entry *h = NULL; | |
1762 | asection *s = NULL; | |
1763 | bfd_vma relocation; | |
1764 | bfd_reloc_status_type r; | |
1765 | ||
1766 | /* Perform a relocation. */ | |
1767 | ||
1768 | howto = &alpha_howto_table[r_type]; | |
1769 | ||
1770 | if (r_extern) | |
1771 | { | |
1772 | h = sym_hashes[r_symndx]; | |
1773 | /* If h is NULL, that means that there is a reloc | |
1774 | against an external symbol which we thought was just | |
1775 | a debugging symbol. This should not happen. */ | |
1776 | if (h == (struct ecoff_link_hash_entry *) NULL) | |
1777 | abort (); | |
1778 | } | |
1779 | else | |
1780 | { | |
3f048f7f | 1781 | if (r_symndx >= NUM_RELOC_SECTIONS) |
693f8191 KR |
1782 | s = NULL; |
1783 | else | |
1784 | s = symndx_to_section[r_symndx]; | |
1785 | ||
1786 | if (s == (asection *) NULL) | |
1787 | abort (); | |
1788 | } | |
1789 | ||
1790 | if (info->relocateable) | |
1791 | { | |
1792 | /* We are generating relocateable output, and must | |
1793 | convert the existing reloc. */ | |
1794 | if (r_extern) | |
1795 | { | |
1796 | if (h->root.type != bfd_link_hash_defined | |
a5655244 | 1797 | && h->root.type != bfd_link_hash_defweak |
693f8191 KR |
1798 | && h->indx == -1) |
1799 | { | |
1800 | /* This symbol is not being written out. */ | |
1801 | if (! ((*info->callbacks->unattached_reloc) | |
1802 | (info, h->root.root.string, input_bfd, | |
1803 | input_section, r_vaddr - input_section->vma))) | |
1804 | return false; | |
1805 | } | |
1806 | ||
1807 | relocation = alpha_convert_external_reloc (output_bfd, | |
1808 | info, | |
1809 | input_bfd, | |
1810 | ext_rel, | |
1811 | h); | |
1812 | } | |
1813 | else | |
1814 | { | |
1815 | /* This is a relocation against a section. Adjust | |
1816 | the value by the amount the section moved. */ | |
1817 | relocation = (s->output_section->vma | |
1818 | + s->output_offset | |
1819 | - s->vma); | |
1820 | } | |
1821 | ||
1822 | /* If this is PC relative, the existing object file | |
1823 | appears to already have the reloc worked out. We | |
1824 | must subtract out the old value and add in the new | |
1825 | one. */ | |
1826 | if (howto->pc_relative) | |
1827 | relocation -= (input_section->output_section->vma | |
1828 | + input_section->output_offset | |
1829 | - input_section->vma); | |
1830 | ||
1831 | /* Put in any addend. */ | |
1832 | relocation += addend; | |
1833 | ||
1834 | /* Adjust the contents. */ | |
1835 | r = _bfd_relocate_contents (howto, input_bfd, relocation, | |
1836 | (contents | |
1837 | + r_vaddr | |
1838 | - input_section->vma)); | |
1839 | } | |
1840 | else | |
1841 | { | |
1842 | /* We are producing a final executable. */ | |
1843 | if (r_extern) | |
1844 | { | |
1845 | /* This is a reloc against a symbol. */ | |
a5655244 ILT |
1846 | if (h->root.type == bfd_link_hash_defined |
1847 | || h->root.type == bfd_link_hash_defweak) | |
693f8191 KR |
1848 | { |
1849 | asection *hsec; | |
1850 | ||
1851 | hsec = h->root.u.def.section; | |
1852 | relocation = (h->root.u.def.value | |
1853 | + hsec->output_section->vma | |
1854 | + hsec->output_offset); | |
1855 | } | |
1856 | else | |
1857 | { | |
1858 | if (! ((*info->callbacks->undefined_symbol) | |
1859 | (info, h->root.root.string, input_bfd, | |
1860 | input_section, | |
1861 | r_vaddr - input_section->vma))) | |
1862 | return false; | |
1863 | relocation = 0; | |
1864 | } | |
1865 | } | |
1866 | else | |
1867 | { | |
1868 | /* This is a reloc against a section. */ | |
1869 | relocation = (s->output_section->vma | |
1870 | + s->output_offset | |
1871 | - s->vma); | |
1872 | ||
1873 | /* Adjust a PC relative relocation by removing the | |
1874 | reference to the original source section. */ | |
1875 | if (howto->pc_relative) | |
1876 | relocation += input_section->vma; | |
1877 | } | |
1878 | ||
1879 | r = _bfd_final_link_relocate (howto, | |
1880 | input_bfd, | |
1881 | input_section, | |
1882 | contents, | |
1883 | r_vaddr - input_section->vma, | |
1884 | relocation, | |
1885 | addend); | |
1886 | } | |
1887 | ||
1888 | if (r != bfd_reloc_ok) | |
1889 | { | |
1890 | switch (r) | |
1891 | { | |
1892 | default: | |
1893 | case bfd_reloc_outofrange: | |
1894 | abort (); | |
1895 | case bfd_reloc_overflow: | |
4991ebb9 ILT |
1896 | { |
1897 | const char *name; | |
1898 | ||
1899 | if (r_extern) | |
1900 | name = sym_hashes[r_symndx]->root.root.string; | |
1901 | else | |
1902 | name = bfd_section_name (input_bfd, | |
1903 | symndx_to_section[r_symndx]); | |
1904 | if (! ((*info->callbacks->reloc_overflow) | |
1905 | (info, name, alpha_howto_table[r_type].name, | |
1906 | (bfd_vma) 0, input_bfd, input_section, | |
1907 | r_vaddr - input_section->vma))) | |
1908 | return false; | |
1909 | } | |
693f8191 KR |
1910 | break; |
1911 | } | |
1912 | } | |
1913 | } | |
1914 | ||
1915 | if (info->relocateable && adjust_addrp) | |
1916 | { | |
1917 | /* Change the address of the relocation. */ | |
1918 | bfd_h_put_64 (input_bfd, | |
1919 | (input_section->output_section->vma | |
1920 | + input_section->output_offset | |
1921 | - input_section->vma | |
1922 | + r_vaddr), | |
1923 | (bfd_byte *) ext_rel->r_vaddr); | |
1924 | } | |
1925 | ||
1926 | if (gp_usedp && gp_undefined) | |
1927 | { | |
1928 | if (! ((*info->callbacks->reloc_dangerous) | |
1929 | (info, "GP relative relocation when GP not defined", | |
1930 | input_bfd, input_section, r_vaddr - input_section->vma))) | |
1931 | return false; | |
1932 | /* Only give the error once per link. */ | |
1933 | ecoff_data (output_bfd)->gp = gp = 4; | |
1934 | gp_undefined = false; | |
1935 | } | |
1936 | } | |
1937 | ||
1938 | if (tos != 0) | |
1939 | abort (); | |
1940 | ||
1941 | return true; | |
5f8f6d56 | 1942 | } |
dae31cf5 | 1943 | \f |
aca73687 ILT |
1944 | /* Do final adjustments to the filehdr and the aouthdr. This routine |
1945 | sets the dynamic bits in the file header. */ | |
1946 | ||
1947 | /*ARGSUSED*/ | |
1948 | static boolean | |
1949 | alpha_adjust_headers (abfd, fhdr, ahdr) | |
1950 | bfd *abfd; | |
1951 | struct internal_filehdr *fhdr; | |
1952 | struct internal_aouthdr *ahdr; | |
1953 | { | |
1954 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == (DYNAMIC | EXEC_P)) | |
1955 | fhdr->f_flags |= F_ALPHA_CALL_SHARED; | |
1956 | else if ((abfd->flags & DYNAMIC) != 0) | |
1957 | fhdr->f_flags |= F_ALPHA_SHARABLE; | |
1958 | return true; | |
1959 | } | |
1960 | \f | |
693f8191 KR |
1961 | /* This is the ECOFF backend structure. The backend field of the |
1962 | target vector points to this. */ | |
1963 | ||
1964 | static const struct ecoff_backend_data alpha_ecoff_backend_data = | |
1965 | { | |
1966 | /* COFF backend structure. */ | |
1967 | { | |
fa965415 | 1968 | (void (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR))) bfd_void, /* aux_in */ |
693f8191 KR |
1969 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_in */ |
1970 | (void (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_in */ | |
fa965415 | 1971 | (unsigned (*) PARAMS ((bfd *,PTR,int,int,int,int,PTR)))bfd_void,/*aux_out*/ |
693f8191 KR |
1972 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* sym_out */ |
1973 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* lineno_out */ | |
1974 | (unsigned (*) PARAMS ((bfd *,PTR,PTR))) bfd_void, /* reloc_out */ | |
1975 | alpha_ecoff_swap_filehdr_out, alpha_ecoff_swap_aouthdr_out, | |
1976 | alpha_ecoff_swap_scnhdr_out, | |
69645d10 | 1977 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, true, |
693f8191 | 1978 | alpha_ecoff_swap_filehdr_in, alpha_ecoff_swap_aouthdr_in, |
69645d10 ILT |
1979 | alpha_ecoff_swap_scnhdr_in, NULL, |
1980 | alpha_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, | |
1981 | alpha_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags, | |
aca73687 | 1982 | _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table, |
a877f591 | 1983 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL |
693f8191 KR |
1984 | }, |
1985 | /* Supported architecture. */ | |
1986 | bfd_arch_alpha, | |
1987 | /* Initial portion of armap string. */ | |
1988 | "________64", | |
1989 | /* The page boundary used to align sections in a demand-paged | |
1990 | executable file. E.g., 0x1000. */ | |
1991 | 0x2000, | |
1992 | /* True if the .rdata section is part of the text segment, as on the | |
1993 | Alpha. False if .rdata is part of the data segment, as on the | |
1994 | MIPS. */ | |
1995 | true, | |
1996 | /* Bitsize of constructor entries. */ | |
1997 | 64, | |
1998 | /* Reloc to use for constructor entries. */ | |
1999 | &alpha_howto_table[ALPHA_R_REFQUAD], | |
2000 | { | |
2001 | /* Symbol table magic number. */ | |
2002 | magicSym2, | |
2003 | /* Alignment of debugging information. E.g., 4. */ | |
2004 | 8, | |
2005 | /* Sizes of external symbolic information. */ | |
2006 | sizeof (struct hdr_ext), | |
2007 | sizeof (struct dnr_ext), | |
2008 | sizeof (struct pdr_ext), | |
2009 | sizeof (struct sym_ext), | |
2010 | sizeof (struct opt_ext), | |
2011 | sizeof (struct fdr_ext), | |
2012 | sizeof (struct rfd_ext), | |
2013 | sizeof (struct ext_ext), | |
2014 | /* Functions to swap in external symbolic data. */ | |
2015 | ecoff_swap_hdr_in, | |
2016 | ecoff_swap_dnr_in, | |
2017 | ecoff_swap_pdr_in, | |
2018 | ecoff_swap_sym_in, | |
2019 | ecoff_swap_opt_in, | |
2020 | ecoff_swap_fdr_in, | |
2021 | ecoff_swap_rfd_in, | |
2022 | ecoff_swap_ext_in, | |
75f3ef7a ILT |
2023 | _bfd_ecoff_swap_tir_in, |
2024 | _bfd_ecoff_swap_rndx_in, | |
693f8191 KR |
2025 | /* Functions to swap out external symbolic data. */ |
2026 | ecoff_swap_hdr_out, | |
2027 | ecoff_swap_dnr_out, | |
2028 | ecoff_swap_pdr_out, | |
2029 | ecoff_swap_sym_out, | |
2030 | ecoff_swap_opt_out, | |
2031 | ecoff_swap_fdr_out, | |
2032 | ecoff_swap_rfd_out, | |
aac6b32f | 2033 | ecoff_swap_ext_out, |
75f3ef7a ILT |
2034 | _bfd_ecoff_swap_tir_out, |
2035 | _bfd_ecoff_swap_rndx_out, | |
aac6b32f | 2036 | /* Function to read in symbolic data. */ |
75f3ef7a | 2037 | _bfd_ecoff_slurp_symbolic_info |
693f8191 KR |
2038 | }, |
2039 | /* External reloc size. */ | |
2040 | RELSZ, | |
2041 | /* Reloc swapping functions. */ | |
2042 | alpha_ecoff_swap_reloc_in, | |
2043 | alpha_ecoff_swap_reloc_out, | |
2044 | /* Backend reloc tweaking. */ | |
2045 | alpha_adjust_reloc_in, | |
2046 | alpha_adjust_reloc_out, | |
2047 | /* Relocate section contents while linking. */ | |
aca73687 ILT |
2048 | alpha_relocate_section, |
2049 | /* Do final adjustments to filehdr and aouthdr. */ | |
2050 | alpha_adjust_headers | |
dae31cf5 | 2051 | }; |
5f8f6d56 | 2052 | |
693f8191 | 2053 | /* Looking up a reloc type is Alpha specific. */ |
75f3ef7a | 2054 | #define _bfd_ecoff_bfd_reloc_type_lookup alpha_bfd_reloc_type_lookup |
693f8191 KR |
2055 | |
2056 | /* So is getting relocated section contents. */ | |
75f3ef7a | 2057 | #define _bfd_ecoff_bfd_get_relocated_section_contents \ |
693f8191 KR |
2058 | alpha_ecoff_get_relocated_section_contents |
2059 | ||
a877f591 ILT |
2060 | /* Handling file windows is generic. */ |
2061 | #define _bfd_ecoff_get_section_contents_in_window \ | |
2062 | _bfd_generic_get_section_contents_in_window | |
2063 | ||
a3a33af3 | 2064 | /* Relaxing sections is generic. */ |
75f3ef7a | 2065 | #define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section |
a3a33af3 | 2066 | |
2f3508ad | 2067 | const bfd_target ecoffalpha_little_vec = |
5f8f6d56 | 2068 | { |
dae31cf5 ILT |
2069 | "ecoff-littlealpha", /* name */ |
2070 | bfd_target_ecoff_flavour, | |
2071 | false, /* data byte order is little */ | |
2072 | false, /* header byte order is little */ | |
5f8f6d56 | 2073 | |
dae31cf5 ILT |
2074 | (HAS_RELOC | EXEC_P | /* object flags */ |
2075 | HAS_LINENO | HAS_DEBUG | | |
69645d10 | 2076 | HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED), |
5f8f6d56 | 2077 | |
a5655244 | 2078 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), |
5f8f6d56 | 2079 | 0, /* leading underscore */ |
dae31cf5 | 2080 | ' ', /* ar_pad_char */ |
5f8f6d56 | 2081 | 15, /* ar_max_namelen */ |
693f8191 KR |
2082 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
2083 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2084 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
2085 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2086 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2087 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
5f8f6d56 | 2088 | |
3f048f7f | 2089 | {_bfd_dummy_target, alpha_ecoff_object_p, /* bfd_check_format */ |
75f3ef7a ILT |
2090 | _bfd_ecoff_archive_p, _bfd_dummy_target}, |
2091 | {bfd_false, _bfd_ecoff_mkobject, /* bfd_set_format */ | |
dae31cf5 | 2092 | _bfd_generic_mkarchive, bfd_false}, |
75f3ef7a | 2093 | {bfd_false, _bfd_ecoff_write_object_contents, /* bfd_write_contents */ |
5f8f6d56 | 2094 | _bfd_write_archive_contents, bfd_false}, |
6812b607 | 2095 | |
75f3ef7a ILT |
2096 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), |
2097 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), | |
6812b607 | 2098 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
75f3ef7a ILT |
2099 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), |
2100 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), | |
2101 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), | |
2102 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), | |
2103 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), | |
aac6b32f | 2104 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
6812b607 | 2105 | |
693f8191 | 2106 | (PTR) &alpha_ecoff_backend_data |
5f8f6d56 | 2107 | }; |