/src/binutils-gdb/bfd/elf32-rx.c
Line | Count | Source |
1 | | /* Renesas RX specific support for 32-bit ELF. |
2 | | Copyright (C) 2008-2026 Free Software Foundation, Inc. |
3 | | |
4 | | This file is part of BFD, the Binary File Descriptor library. |
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 3 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., 51 Franklin Street - Fifth Floor, Boston, |
19 | | MA 02110-1301, USA. */ |
20 | | |
21 | | #include "sysdep.h" |
22 | | #include "bfd.h" |
23 | | #include "libbfd.h" |
24 | | #include "elf-bfd.h" |
25 | | #include "elf/rx.h" |
26 | | #include "libiberty.h" |
27 | | #include "elf32-rx.h" |
28 | | |
29 | | #define RX_OPCODE_BIG_ENDIAN 0 |
30 | | |
31 | | /* This is a meta-target that's used only with objcopy, to avoid the |
32 | | endian-swap we would otherwise get. We check for this in |
33 | | rx_elf_object_p(). */ |
34 | | const bfd_target rx_elf32_be_ns_vec; |
35 | | const bfd_target rx_elf32_be_vec; |
36 | | |
37 | | #ifdef DEBUG |
38 | | char * rx_get_reloc (long); |
39 | | void rx_dump_symtab (bfd *, void *, void *); |
40 | | #endif |
41 | | |
42 | | #define RXREL(n,sz,bit,shift,complain,pcrel) \ |
43 | | HOWTO (R_RX_##n, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \ |
44 | | bfd_elf_generic_reloc, "R_RX_" #n, false, 0, ~0, false) |
45 | | |
46 | | /* Note that the relocations around 0x7f are internal to this file; |
47 | | feel free to move them as needed to avoid conflicts with published |
48 | | relocation numbers. */ |
49 | | |
50 | | static reloc_howto_type rx_elf_howto_table [] = |
51 | | { |
52 | | RXREL (NONE, 0, 0, 0, dont, false), |
53 | | RXREL (DIR32, 4, 32, 0, signed, false), |
54 | | RXREL (DIR24S, 4, 24, 0, signed, false), |
55 | | RXREL (DIR16, 2, 16, 0, dont, false), |
56 | | RXREL (DIR16U, 2, 16, 0, unsigned, false), |
57 | | RXREL (DIR16S, 2, 16, 0, signed, false), |
58 | | RXREL (DIR8, 1, 8, 0, dont, false), |
59 | | RXREL (DIR8U, 1, 8, 0, unsigned, false), |
60 | | RXREL (DIR8S, 1, 8, 0, signed, false), |
61 | | RXREL (DIR24S_PCREL, 4, 24, 0, signed, true), |
62 | | RXREL (DIR16S_PCREL, 2, 16, 0, signed, true), |
63 | | RXREL (DIR8S_PCREL, 1, 8, 0, signed, true), |
64 | | RXREL (DIR16UL, 2, 16, 2, unsigned, false), |
65 | | RXREL (DIR16UW, 2, 16, 1, unsigned, false), |
66 | | RXREL (DIR8UL, 1, 8, 2, unsigned, false), |
67 | | RXREL (DIR8UW, 1, 8, 1, unsigned, false), |
68 | | RXREL (DIR32_REV, 2, 16, 0, dont, false), |
69 | | RXREL (DIR16_REV, 2, 16, 0, dont, false), |
70 | | RXREL (DIR3U_PCREL, 1, 3, 0, dont, true), |
71 | | |
72 | | EMPTY_HOWTO (0x13), |
73 | | EMPTY_HOWTO (0x14), |
74 | | EMPTY_HOWTO (0x15), |
75 | | EMPTY_HOWTO (0x16), |
76 | | EMPTY_HOWTO (0x17), |
77 | | EMPTY_HOWTO (0x18), |
78 | | EMPTY_HOWTO (0x19), |
79 | | EMPTY_HOWTO (0x1a), |
80 | | EMPTY_HOWTO (0x1b), |
81 | | EMPTY_HOWTO (0x1c), |
82 | | EMPTY_HOWTO (0x1d), |
83 | | EMPTY_HOWTO (0x1e), |
84 | | EMPTY_HOWTO (0x1f), |
85 | | |
86 | | RXREL (RH_3_PCREL, 1, 3, 0, signed, true), |
87 | | RXREL (RH_16_OP, 2, 16, 0, signed, false), |
88 | | RXREL (RH_24_OP, 4, 24, 0, signed, false), |
89 | | RXREL (RH_32_OP, 4, 32, 0, signed, false), |
90 | | RXREL (RH_24_UNS, 4, 24, 0, unsigned, false), |
91 | | RXREL (RH_8_NEG, 1, 8, 0, signed, false), |
92 | | RXREL (RH_16_NEG, 2, 16, 0, signed, false), |
93 | | RXREL (RH_24_NEG, 4, 24, 0, signed, false), |
94 | | RXREL (RH_32_NEG, 4, 32, 0, signed, false), |
95 | | RXREL (RH_DIFF, 4, 32, 0, signed, false), |
96 | | RXREL (RH_GPRELB, 2, 16, 0, unsigned, false), |
97 | | RXREL (RH_GPRELW, 2, 16, 0, unsigned, false), |
98 | | RXREL (RH_GPRELL, 2, 16, 0, unsigned, false), |
99 | | RXREL (RH_RELAX, 0, 0, 0, dont, false), |
100 | | |
101 | | EMPTY_HOWTO (0x2e), |
102 | | EMPTY_HOWTO (0x2f), |
103 | | EMPTY_HOWTO (0x30), |
104 | | EMPTY_HOWTO (0x31), |
105 | | EMPTY_HOWTO (0x32), |
106 | | EMPTY_HOWTO (0x33), |
107 | | EMPTY_HOWTO (0x34), |
108 | | EMPTY_HOWTO (0x35), |
109 | | EMPTY_HOWTO (0x36), |
110 | | EMPTY_HOWTO (0x37), |
111 | | EMPTY_HOWTO (0x38), |
112 | | EMPTY_HOWTO (0x39), |
113 | | EMPTY_HOWTO (0x3a), |
114 | | EMPTY_HOWTO (0x3b), |
115 | | EMPTY_HOWTO (0x3c), |
116 | | EMPTY_HOWTO (0x3d), |
117 | | EMPTY_HOWTO (0x3e), |
118 | | EMPTY_HOWTO (0x3f), |
119 | | EMPTY_HOWTO (0x40), |
120 | | |
121 | | RXREL (ABS32, 4, 32, 0, dont, false), |
122 | | RXREL (ABS24S, 4, 24, 0, signed, false), |
123 | | RXREL (ABS16, 2, 16, 0, dont, false), |
124 | | RXREL (ABS16U, 2, 16, 0, unsigned, false), |
125 | | RXREL (ABS16S, 2, 16, 0, signed, false), |
126 | | RXREL (ABS8, 1, 8, 0, dont, false), |
127 | | RXREL (ABS8U, 1, 8, 0, unsigned, false), |
128 | | RXREL (ABS8S, 1, 8, 0, signed, false), |
129 | | RXREL (ABS24S_PCREL, 4, 24, 0, signed, true), |
130 | | RXREL (ABS16S_PCREL, 2, 16, 0, signed, true), |
131 | | RXREL (ABS8S_PCREL, 1, 8, 0, signed, true), |
132 | | RXREL (ABS16UL, 2, 16, 0, unsigned, false), |
133 | | RXREL (ABS16UW, 2, 16, 0, unsigned, false), |
134 | | RXREL (ABS8UL, 1, 8, 0, unsigned, false), |
135 | | RXREL (ABS8UW, 1, 8, 0, unsigned, false), |
136 | | RXREL (ABS32_REV, 4, 32, 0, dont, false), |
137 | | RXREL (ABS16_REV, 2, 16, 0, dont, false), |
138 | | |
139 | 0 | #define STACK_REL_P(x) ((x) <= R_RX_ABS16_REV && (x) >= R_RX_ABS32) |
140 | | |
141 | | EMPTY_HOWTO (0x52), |
142 | | EMPTY_HOWTO (0x53), |
143 | | EMPTY_HOWTO (0x54), |
144 | | EMPTY_HOWTO (0x55), |
145 | | EMPTY_HOWTO (0x56), |
146 | | EMPTY_HOWTO (0x57), |
147 | | EMPTY_HOWTO (0x58), |
148 | | EMPTY_HOWTO (0x59), |
149 | | EMPTY_HOWTO (0x5a), |
150 | | EMPTY_HOWTO (0x5b), |
151 | | EMPTY_HOWTO (0x5c), |
152 | | EMPTY_HOWTO (0x5d), |
153 | | EMPTY_HOWTO (0x5e), |
154 | | EMPTY_HOWTO (0x5f), |
155 | | EMPTY_HOWTO (0x60), |
156 | | EMPTY_HOWTO (0x61), |
157 | | EMPTY_HOWTO (0x62), |
158 | | EMPTY_HOWTO (0x63), |
159 | | EMPTY_HOWTO (0x64), |
160 | | EMPTY_HOWTO (0x65), |
161 | | EMPTY_HOWTO (0x66), |
162 | | EMPTY_HOWTO (0x67), |
163 | | EMPTY_HOWTO (0x68), |
164 | | EMPTY_HOWTO (0x69), |
165 | | EMPTY_HOWTO (0x6a), |
166 | | EMPTY_HOWTO (0x6b), |
167 | | EMPTY_HOWTO (0x6c), |
168 | | EMPTY_HOWTO (0x6d), |
169 | | EMPTY_HOWTO (0x6e), |
170 | | EMPTY_HOWTO (0x6f), |
171 | | EMPTY_HOWTO (0x70), |
172 | | EMPTY_HOWTO (0x71), |
173 | | EMPTY_HOWTO (0x72), |
174 | | EMPTY_HOWTO (0x73), |
175 | | EMPTY_HOWTO (0x74), |
176 | | EMPTY_HOWTO (0x75), |
177 | | EMPTY_HOWTO (0x76), |
178 | | EMPTY_HOWTO (0x77), |
179 | | |
180 | | /* These are internal. */ |
181 | | /* A 5-bit unsigned displacement to a B/W/L address, at bit position 8/12. */ |
182 | | /* ---- ---- 4--- 3210. */ |
183 | 0 | #define R_RX_RH_ABS5p8B 0x78 |
184 | | RXREL (RH_ABS5p8B, 0, 0, 0, dont, false), |
185 | 0 | #define R_RX_RH_ABS5p8W 0x79 |
186 | | RXREL (RH_ABS5p8W, 0, 0, 0, dont, false), |
187 | 0 | #define R_RX_RH_ABS5p8L 0x7a |
188 | | RXREL (RH_ABS5p8L, 0, 0, 0, dont, false), |
189 | | /* A 5-bit unsigned displacement to a B/W/L address, at bit position 5/12. */ |
190 | | /* ---- -432 1--- 0---. */ |
191 | 0 | #define R_RX_RH_ABS5p5B 0x7b |
192 | | RXREL (RH_ABS5p5B, 0, 0, 0, dont, false), |
193 | 0 | #define R_RX_RH_ABS5p5W 0x7c |
194 | | RXREL (RH_ABS5p5W, 0, 0, 0, dont, false), |
195 | 0 | #define R_RX_RH_ABS5p5L 0x7d |
196 | | RXREL (RH_ABS5p5L, 0, 0, 0, dont, false), |
197 | | /* A 4-bit unsigned immediate at bit position 8. */ |
198 | 0 | #define R_RX_RH_UIMM4p8 0x7e |
199 | | RXREL (RH_UIMM4p8, 0, 0, 0, dont, false), |
200 | | /* A 4-bit negative unsigned immediate at bit position 8. */ |
201 | 0 | #define R_RX_RH_UNEG4p8 0x7f |
202 | | RXREL (RH_UNEG4p8, 0, 0, 0, dont, false), |
203 | | /* End of internal relocs. */ |
204 | | |
205 | | RXREL (SYM, 4, 32, 0, dont, false), |
206 | | RXREL (OPneg, 4, 32, 0, dont, false), |
207 | | RXREL (OPadd, 4, 32, 0, dont, false), |
208 | | RXREL (OPsub, 4, 32, 0, dont, false), |
209 | | RXREL (OPmul, 4, 32, 0, dont, false), |
210 | | RXREL (OPdiv, 4, 32, 0, dont, false), |
211 | | RXREL (OPshla, 4, 32, 0, dont, false), |
212 | | RXREL (OPshra, 4, 32, 0, dont, false), |
213 | | RXREL (OPsctsize, 4, 32, 0, dont, false), |
214 | | |
215 | | EMPTY_HOWTO (0x89), |
216 | | EMPTY_HOWTO (0x8a), |
217 | | EMPTY_HOWTO (0x8b), |
218 | | EMPTY_HOWTO (0x8c), |
219 | | |
220 | | RXREL (OPscttop, 4, 32, 0, dont, false), |
221 | | |
222 | | EMPTY_HOWTO (0x8e), |
223 | | EMPTY_HOWTO (0x8f), |
224 | | |
225 | | RXREL (OPand, 4, 32, 0, dont, false), |
226 | | RXREL (OPor, 4, 32, 0, dont, false), |
227 | | RXREL (OPxor, 4, 32, 0, dont, false), |
228 | | RXREL (OPnot, 4, 32, 0, dont, false), |
229 | | RXREL (OPmod, 4, 32, 0, dont, false), |
230 | | RXREL (OPromtop, 4, 32, 0, dont, false), |
231 | | RXREL (OPramtop, 4, 32, 0, dont, false) |
232 | | }; |
233 | | |
234 | | /* Map BFD reloc types to RX ELF reloc types. */ |
235 | | |
236 | | struct rx_reloc_map |
237 | | { |
238 | | bfd_reloc_code_real_type bfd_reloc_val; |
239 | | unsigned int rx_reloc_val; |
240 | | }; |
241 | | |
242 | | static const struct rx_reloc_map rx_reloc_map [] = |
243 | | { |
244 | | { BFD_RELOC_NONE, R_RX_NONE }, |
245 | | { BFD_RELOC_8, R_RX_DIR8S }, |
246 | | { BFD_RELOC_16, R_RX_DIR16S }, |
247 | | { BFD_RELOC_24, R_RX_DIR24S }, |
248 | | { BFD_RELOC_32, R_RX_DIR32 }, |
249 | | { BFD_RELOC_RX_16_OP, R_RX_DIR16 }, |
250 | | { BFD_RELOC_RX_DIR3U_PCREL, R_RX_DIR3U_PCREL }, |
251 | | { BFD_RELOC_8_PCREL, R_RX_DIR8S_PCREL }, |
252 | | { BFD_RELOC_16_PCREL, R_RX_DIR16S_PCREL }, |
253 | | { BFD_RELOC_24_PCREL, R_RX_DIR24S_PCREL }, |
254 | | { BFD_RELOC_RX_8U, R_RX_DIR8U }, |
255 | | { BFD_RELOC_RX_16U, R_RX_DIR16U }, |
256 | | { BFD_RELOC_RX_24U, R_RX_RH_24_UNS }, |
257 | | { BFD_RELOC_RX_NEG8, R_RX_RH_8_NEG }, |
258 | | { BFD_RELOC_RX_NEG16, R_RX_RH_16_NEG }, |
259 | | { BFD_RELOC_RX_NEG24, R_RX_RH_24_NEG }, |
260 | | { BFD_RELOC_RX_NEG32, R_RX_RH_32_NEG }, |
261 | | { BFD_RELOC_RX_DIFF, R_RX_RH_DIFF }, |
262 | | { BFD_RELOC_RX_GPRELB, R_RX_RH_GPRELB }, |
263 | | { BFD_RELOC_RX_GPRELW, R_RX_RH_GPRELW }, |
264 | | { BFD_RELOC_RX_GPRELL, R_RX_RH_GPRELL }, |
265 | | { BFD_RELOC_RX_RELAX, R_RX_RH_RELAX }, |
266 | | { BFD_RELOC_RX_SYM, R_RX_SYM }, |
267 | | { BFD_RELOC_RX_OP_SUBTRACT, R_RX_OPsub }, |
268 | | { BFD_RELOC_RX_OP_NEG, R_RX_OPneg }, |
269 | | { BFD_RELOC_RX_ABS8, R_RX_ABS8 }, |
270 | | { BFD_RELOC_RX_ABS16, R_RX_ABS16 }, |
271 | | { BFD_RELOC_RX_ABS16_REV, R_RX_ABS16_REV }, |
272 | | { BFD_RELOC_RX_ABS32, R_RX_ABS32 }, |
273 | | { BFD_RELOC_RX_ABS32_REV, R_RX_ABS32_REV }, |
274 | | { BFD_RELOC_RX_ABS16UL, R_RX_ABS16UL }, |
275 | | { BFD_RELOC_RX_ABS16UW, R_RX_ABS16UW }, |
276 | | { BFD_RELOC_RX_ABS16U, R_RX_ABS16U } |
277 | | }; |
278 | | |
279 | 0 | #define BIGE(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG) |
280 | | |
281 | | static reloc_howto_type * |
282 | | rx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, |
283 | | bfd_reloc_code_real_type code) |
284 | 0 | { |
285 | 0 | unsigned int i; |
286 | |
|
287 | 0 | if (code == BFD_RELOC_RX_32_OP) |
288 | 0 | return rx_elf_howto_table + R_RX_DIR32; |
289 | | |
290 | 0 | for (i = ARRAY_SIZE (rx_reloc_map); i--;) |
291 | 0 | if (rx_reloc_map [i].bfd_reloc_val == code) |
292 | 0 | return rx_elf_howto_table + rx_reloc_map[i].rx_reloc_val; |
293 | | |
294 | 0 | return NULL; |
295 | 0 | } |
296 | | |
297 | | static reloc_howto_type * |
298 | | rx_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED, const char * r_name) |
299 | 0 | { |
300 | 0 | unsigned int i; |
301 | |
|
302 | 0 | for (i = 0; i < ARRAY_SIZE (rx_elf_howto_table); i++) |
303 | 0 | if (rx_elf_howto_table[i].name != NULL |
304 | 0 | && strcasecmp (rx_elf_howto_table[i].name, r_name) == 0) |
305 | 0 | return rx_elf_howto_table + i; |
306 | | |
307 | 0 | return NULL; |
308 | 0 | } |
309 | | |
310 | | /* Set the howto pointer for an RX ELF reloc. */ |
311 | | |
312 | | static bool |
313 | | rx_info_to_howto_rela (bfd * abfd, |
314 | | arelent * cache_ptr, |
315 | | Elf_Internal_Rela * dst) |
316 | 0 | { |
317 | 0 | unsigned int r_type; |
318 | |
|
319 | 0 | r_type = ELF32_R_TYPE (dst->r_info); |
320 | 0 | BFD_ASSERT (R_RX_max == ARRAY_SIZE (rx_elf_howto_table)); |
321 | 0 | if (r_type >= ARRAY_SIZE (rx_elf_howto_table)) |
322 | 0 | { |
323 | | /* xgettext:c-format */ |
324 | 0 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
325 | 0 | abfd, r_type); |
326 | 0 | bfd_set_error (bfd_error_bad_value); |
327 | 0 | return false; |
328 | 0 | } |
329 | 0 | cache_ptr->howto = rx_elf_howto_table + r_type; |
330 | 0 | if (cache_ptr->howto->name == NULL) |
331 | 0 | { |
332 | | /* xgettext:c-format */ |
333 | 0 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
334 | 0 | abfd, r_type); |
335 | 0 | bfd_set_error (bfd_error_bad_value); |
336 | 0 | return false; |
337 | 0 | } |
338 | 0 | return true; |
339 | 0 | } |
340 | | |
341 | | static bfd_vma |
342 | | get_symbol_value (const char * name, |
343 | | struct bfd_link_info * info, |
344 | | bfd * input_bfd, |
345 | | asection * input_section, |
346 | | int offset) |
347 | 0 | { |
348 | 0 | bfd_vma value = 0; |
349 | 0 | struct bfd_link_hash_entry * h; |
350 | |
|
351 | 0 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); |
352 | |
|
353 | 0 | if (h == NULL |
354 | 0 | || (h->type != bfd_link_hash_defined |
355 | 0 | && h->type != bfd_link_hash_defweak)) |
356 | 0 | (*info->callbacks->undefined_symbol) |
357 | 0 | (info, name, input_bfd, input_section, offset, true); |
358 | 0 | else |
359 | 0 | value = (h->u.def.value |
360 | 0 | + h->u.def.section->output_section->vma |
361 | 0 | + h->u.def.section->output_offset); |
362 | |
|
363 | 0 | return value; |
364 | 0 | } |
365 | | |
366 | | static bfd_vma |
367 | | get_symbol_value_maybe (const char * name, |
368 | | struct bfd_link_info * info) |
369 | 0 | { |
370 | 0 | bfd_vma value = 0; |
371 | 0 | struct bfd_link_hash_entry * h; |
372 | |
|
373 | 0 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); |
374 | |
|
375 | 0 | if (h == NULL |
376 | 0 | || (h->type != bfd_link_hash_defined |
377 | 0 | && h->type != bfd_link_hash_defweak)) |
378 | 0 | return 0; |
379 | 0 | else |
380 | 0 | value = (h->u.def.value |
381 | 0 | + h->u.def.section->output_section->vma |
382 | 0 | + h->u.def.section->output_offset); |
383 | | |
384 | 0 | return value; |
385 | 0 | } |
386 | | |
387 | | static bfd_vma |
388 | | get_gp (struct bfd_link_info * info, |
389 | | bfd * abfd, |
390 | | asection * sec, |
391 | | int offset) |
392 | 0 | { |
393 | 0 | static bool cached = false; |
394 | 0 | static bfd_vma cached_value = 0; |
395 | |
|
396 | 0 | if (!cached) |
397 | 0 | { |
398 | 0 | cached_value = get_symbol_value ("__gp", info, abfd, sec, offset); |
399 | 0 | cached = true; |
400 | 0 | } |
401 | 0 | return cached_value; |
402 | 0 | } |
403 | | |
404 | | static bfd_vma |
405 | | get_romstart (struct bfd_link_info * info, |
406 | | bfd * abfd, |
407 | | asection * sec, |
408 | | int offset) |
409 | 0 | { |
410 | 0 | static bool cached = false; |
411 | 0 | static bfd_vma cached_value = 0; |
412 | |
|
413 | 0 | if (!cached) |
414 | 0 | { |
415 | 0 | cached_value = get_symbol_value ("_start", info, abfd, sec, offset); |
416 | 0 | cached = true; |
417 | 0 | } |
418 | 0 | return cached_value; |
419 | 0 | } |
420 | | |
421 | | static bfd_vma |
422 | | get_ramstart (struct bfd_link_info * info, |
423 | | bfd * abfd, |
424 | | asection * sec, |
425 | | int offset) |
426 | 0 | { |
427 | 0 | static bool cached = false; |
428 | 0 | static bfd_vma cached_value = 0; |
429 | |
|
430 | 0 | if (!cached) |
431 | 0 | { |
432 | 0 | cached_value = get_symbol_value ("__datastart", info, abfd, sec, offset); |
433 | 0 | cached = true; |
434 | 0 | } |
435 | 0 | return cached_value; |
436 | 0 | } |
437 | | |
438 | 0 | #define NUM_STACK_ENTRIES 16 |
439 | | static int32_t rx_stack [ NUM_STACK_ENTRIES ]; |
440 | | static unsigned int rx_stack_top; |
441 | | |
442 | | #define RX_STACK_PUSH(val) \ |
443 | 0 | do \ |
444 | 0 | { \ |
445 | 0 | if (rx_stack_top < NUM_STACK_ENTRIES) \ |
446 | 0 | rx_stack [rx_stack_top ++] = (val); \ |
447 | 0 | else \ |
448 | 0 | r = bfd_reloc_dangerous; \ |
449 | 0 | } \ |
450 | 0 | while (0) |
451 | | |
452 | | #define RX_STACK_POP(dest) \ |
453 | 0 | do \ |
454 | 0 | { \ |
455 | 0 | if (rx_stack_top > 0) \ |
456 | 0 | (dest) = rx_stack [-- rx_stack_top]; \ |
457 | 0 | else \ |
458 | 0 | (dest) = 0, r = bfd_reloc_dangerous; \ |
459 | 0 | } \ |
460 | 0 | while (0) |
461 | | |
462 | | /* Relocate an RX ELF section. |
463 | | There is some attempt to make this function usable for many architectures, |
464 | | both USE_REL and USE_RELA ['twould be nice if such a critter existed], |
465 | | if only to serve as a learning tool. |
466 | | |
467 | | The RELOCATE_SECTION function is called by the new ELF backend linker |
468 | | to handle the relocations for a section. |
469 | | |
470 | | The relocs are always passed as Rela structures; if the section |
471 | | actually uses Rel structures, the r_addend field will always be |
472 | | zero. |
473 | | |
474 | | This function is responsible for adjusting the section contents as |
475 | | necessary, and (if using Rela relocs and generating a relocatable |
476 | | output file) adjusting the reloc addend as necessary. |
477 | | |
478 | | This function does not have to worry about setting the reloc |
479 | | address or the reloc symbol index. |
480 | | |
481 | | LOCAL_SYMS is a pointer to the swapped in local symbols. |
482 | | |
483 | | LOCAL_SECTIONS is an array giving the section in the input file |
484 | | corresponding to the st_shndx field of each local symbol. |
485 | | |
486 | | The global hash table entry for the global symbols can be found |
487 | | via elf_sym_hashes (input_bfd). |
488 | | |
489 | | When generating relocatable output, this function must handle |
490 | | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
491 | | going to be the section symbol corresponding to the output |
492 | | section, which means that the addend must be adjusted |
493 | | accordingly. */ |
494 | | |
495 | | static int |
496 | | rx_elf_relocate_section |
497 | | (bfd * output_bfd, |
498 | | struct bfd_link_info * info, |
499 | | bfd * input_bfd, |
500 | | asection * input_section, |
501 | | bfd_byte * contents, |
502 | | Elf_Internal_Rela * relocs, |
503 | | Elf_Internal_Sym * local_syms, |
504 | | asection ** local_sections) |
505 | 0 | { |
506 | 0 | Elf_Internal_Shdr *symtab_hdr; |
507 | 0 | struct elf_link_hash_entry **sym_hashes; |
508 | 0 | Elf_Internal_Rela *rel; |
509 | 0 | Elf_Internal_Rela *relend; |
510 | 0 | bool pid_mode; |
511 | 0 | bool saw_subtract = false; |
512 | 0 | const char *table_default_cache = NULL; |
513 | 0 | bfd_vma table_start_cache = 0; |
514 | 0 | bfd_vma table_end_cache = 0; |
515 | |
|
516 | 0 | if (elf_elfheader (output_bfd)->e_flags & E_FLAG_RX_PID) |
517 | 0 | pid_mode = true; |
518 | 0 | else |
519 | 0 | pid_mode = false; |
520 | |
|
521 | 0 | symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; |
522 | 0 | sym_hashes = elf_sym_hashes (input_bfd); |
523 | 0 | relend = relocs + input_section->reloc_count; |
524 | 0 | for (rel = relocs; rel < relend; rel ++) |
525 | 0 | { |
526 | 0 | reloc_howto_type *howto; |
527 | 0 | unsigned long r_symndx; |
528 | 0 | Elf_Internal_Sym *sym; |
529 | 0 | asection *sec; |
530 | 0 | struct elf_link_hash_entry *h; |
531 | 0 | bfd_vma relocation; |
532 | 0 | bfd_reloc_status_type r; |
533 | 0 | const char * name = NULL; |
534 | 0 | bool unresolved_reloc = true; |
535 | 0 | int r_type; |
536 | |
|
537 | 0 | r_type = ELF32_R_TYPE (rel->r_info); |
538 | 0 | r_symndx = ELF32_R_SYM (rel->r_info); |
539 | |
|
540 | 0 | howto = rx_elf_howto_table + ELF32_R_TYPE (rel->r_info); |
541 | 0 | h = NULL; |
542 | 0 | sym = NULL; |
543 | 0 | sec = NULL; |
544 | 0 | relocation = 0; |
545 | |
|
546 | 0 | if (rx_stack_top == 0) |
547 | 0 | saw_subtract = false; |
548 | |
|
549 | 0 | if (r_symndx < symtab_hdr->sh_info) |
550 | 0 | { |
551 | 0 | sym = local_syms + r_symndx; |
552 | 0 | sec = local_sections [r_symndx]; |
553 | 0 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, & sec, rel); |
554 | |
|
555 | 0 | name = bfd_elf_string_from_elf_section |
556 | 0 | (input_bfd, symtab_hdr->sh_link, sym->st_name); |
557 | 0 | name = sym->st_name == 0 ? bfd_section_name (sec) : name; |
558 | 0 | } |
559 | 0 | else |
560 | 0 | { |
561 | 0 | bool warned, ignored; |
562 | |
|
563 | 0 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
564 | 0 | r_symndx, symtab_hdr, sym_hashes, h, |
565 | 0 | sec, relocation, unresolved_reloc, |
566 | 0 | warned, ignored); |
567 | | |
568 | 0 | name = h->root.root.string; |
569 | 0 | } |
570 | | |
571 | 0 | if (startswith (name, "$tableentry$default$")) |
572 | 0 | { |
573 | 0 | bfd_vma entry_vma; |
574 | 0 | int idx; |
575 | 0 | char *buf; |
576 | |
|
577 | 0 | if (table_default_cache != name) |
578 | 0 | { |
579 | | |
580 | | /* All relocs for a given table should be to the same |
581 | | (weak) default symbol) so we can use it to detect a |
582 | | cache miss. We use the offset into the table to find |
583 | | the "real" symbol. Calculate and store the table's |
584 | | offset here. */ |
585 | |
|
586 | 0 | table_default_cache = name; |
587 | | |
588 | | /* We have already done error checking in rx_table_find(). */ |
589 | |
|
590 | 0 | buf = (char *) bfd_malloc (13 + strlen (name + 20)); |
591 | 0 | if (buf == NULL) |
592 | 0 | return false; |
593 | | |
594 | 0 | sprintf (buf, "$tablestart$%s", name + 20); |
595 | 0 | table_start_cache = get_symbol_value (buf, |
596 | 0 | info, |
597 | 0 | input_bfd, |
598 | 0 | input_section, |
599 | 0 | rel->r_offset); |
600 | |
|
601 | 0 | sprintf (buf, "$tableend$%s", name + 20); |
602 | 0 | table_end_cache = get_symbol_value (buf, |
603 | 0 | info, |
604 | 0 | input_bfd, |
605 | 0 | input_section, |
606 | 0 | rel->r_offset); |
607 | |
|
608 | 0 | free (buf); |
609 | 0 | } |
610 | | |
611 | 0 | entry_vma = (input_section->output_section->vma |
612 | 0 | + input_section->output_offset |
613 | 0 | + rel->r_offset); |
614 | |
|
615 | 0 | if (table_end_cache <= entry_vma || entry_vma < table_start_cache) |
616 | 0 | { |
617 | | /* xgettext:c-format */ |
618 | 0 | _bfd_error_handler (_("%pB:%pA: table entry %s outside table"), |
619 | 0 | input_bfd, input_section, |
620 | 0 | name); |
621 | 0 | } |
622 | 0 | else if ((int) (entry_vma - table_start_cache) % 4) |
623 | 0 | { |
624 | | /* xgettext:c-format */ |
625 | 0 | _bfd_error_handler (_("%pB:%pA: table entry %s not word-aligned within table"), |
626 | 0 | input_bfd, input_section, |
627 | 0 | name); |
628 | 0 | } |
629 | 0 | else |
630 | 0 | { |
631 | 0 | idx = (int) (entry_vma - table_start_cache) / 4; |
632 | | |
633 | | /* This will look like $tableentry$<N>$<name> */ |
634 | 0 | buf = (char *) bfd_malloc (12 + 20 + strlen (name + 20)); |
635 | 0 | if (buf == NULL) |
636 | 0 | return false; |
637 | | |
638 | 0 | sprintf (buf, "$tableentry$%d$%s", idx, name + 20); |
639 | |
|
640 | 0 | h = (struct elf_link_hash_entry *) bfd_link_hash_lookup (info->hash, buf, false, false, true); |
641 | |
|
642 | 0 | if (h) |
643 | 0 | { |
644 | 0 | relocation = (h->root.u.def.value |
645 | 0 | + h->root.u.def.section->output_section->vma |
646 | 0 | + h->root.u.def.section->output_offset);; |
647 | 0 | } |
648 | |
|
649 | 0 | free (buf); |
650 | 0 | } |
651 | 0 | } |
652 | | |
653 | 0 | if (sec != NULL && discarded_section (sec)) |
654 | 0 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
655 | 0 | rel, 1, relend, R_RX_NONE, |
656 | 0 | howto, 0, contents); |
657 | |
|
658 | 0 | if (bfd_link_relocatable (info)) |
659 | 0 | { |
660 | | /* This is a relocatable link. We don't have to change |
661 | | anything, unless the reloc is against a section symbol, |
662 | | in which case we have to adjust according to where the |
663 | | section symbol winds up in the output section. */ |
664 | 0 | if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
665 | 0 | rel->r_addend += sec->output_offset; |
666 | 0 | continue; |
667 | 0 | } |
668 | | |
669 | 0 | if (h != NULL && h->root.type == bfd_link_hash_undefweak) |
670 | | /* If the symbol is undefined and weak |
671 | | then the relocation resolves to zero. */ |
672 | 0 | relocation = 0; |
673 | 0 | else |
674 | 0 | { |
675 | 0 | if (howto->pc_relative) |
676 | 0 | { |
677 | 0 | relocation -= (input_section->output_section->vma |
678 | 0 | + input_section->output_offset |
679 | 0 | + rel->r_offset); |
680 | 0 | if (r_type != R_RX_RH_3_PCREL |
681 | 0 | && r_type != R_RX_DIR3U_PCREL) |
682 | 0 | relocation ++; |
683 | 0 | } |
684 | |
|
685 | 0 | relocation += rel->r_addend; |
686 | 0 | } |
687 | |
|
688 | 0 | r = bfd_reloc_ok; |
689 | |
|
690 | 0 | #define RANGE(a,b) \ |
691 | 0 | if (a > (long) relocation || (long) relocation > b) \ |
692 | 0 | r = bfd_reloc_overflow |
693 | 0 | #define ALIGN(m) \ |
694 | 0 | if (relocation & m) \ |
695 | 0 | r = bfd_reloc_other |
696 | 0 | #define OP(i) \ |
697 | 0 | (contents[rel->r_offset + (i)]) |
698 | 0 | #define WARN_REDHAT(type) \ |
699 | | /* xgettext:c-format */ \ |
700 | 0 | _bfd_error_handler \ |
701 | 0 | (_("%pB:%pA: warning: deprecated Red Hat reloc " \ |
702 | 0 | "%s detected against: %s"), \ |
703 | 0 | input_bfd, input_section, #type, name) |
704 | | |
705 | | /* Check for unsafe relocs in PID mode. These are any relocs where |
706 | | an absolute address is being computed. There are special cases |
707 | | for relocs against symbols that are known to be referenced in |
708 | | crt0.o before the PID base address register has been initialised. */ |
709 | 0 | #define UNSAFE_FOR_PID \ |
710 | 0 | do \ |
711 | 0 | { \ |
712 | 0 | if (pid_mode \ |
713 | 0 | && sec != NULL \ |
714 | 0 | && sec->flags & SEC_READONLY \ |
715 | 0 | && !(input_section->flags & SEC_DEBUGGING) \ |
716 | 0 | && strcmp (name, "__pid_base") != 0 \ |
717 | 0 | && strcmp (name, "__gp") != 0 \ |
718 | 0 | && strcmp (name, "__romdatastart") != 0 \ |
719 | 0 | && !saw_subtract) \ |
720 | | /* xgettext:c-format */ \ |
721 | 0 | _bfd_error_handler (_("%pB(%pA): unsafe PID relocation %s " \ |
722 | 0 | "at %#" PRIx64 " (against %s in %s)"), \ |
723 | 0 | input_bfd, input_section, howto->name, \ |
724 | 0 | (uint64_t) (input_section->output_section->vma \ |
725 | 0 | + input_section->output_offset \ |
726 | 0 | + rel->r_offset), \ |
727 | 0 | name, sec->name); \ |
728 | 0 | } \ |
729 | 0 | while (0) |
730 | | |
731 | | /* Opcode relocs are always big endian. Data relocs are bi-endian. */ |
732 | 0 | switch (r_type) |
733 | 0 | { |
734 | 0 | case R_RX_NONE: |
735 | 0 | break; |
736 | | |
737 | 0 | case R_RX_RH_RELAX: |
738 | 0 | break; |
739 | | |
740 | 0 | case R_RX_RH_3_PCREL: |
741 | 0 | WARN_REDHAT ("RX_RH_3_PCREL"); |
742 | 0 | RANGE (3, 10); |
743 | 0 | OP (0) &= 0xf8; |
744 | 0 | OP (0) |= relocation & 0x07; |
745 | 0 | break; |
746 | | |
747 | 0 | case R_RX_RH_8_NEG: |
748 | 0 | WARN_REDHAT ("RX_RH_8_NEG"); |
749 | 0 | relocation = - relocation; |
750 | | /* Fall through. */ |
751 | 0 | case R_RX_DIR8S_PCREL: |
752 | 0 | UNSAFE_FOR_PID; |
753 | 0 | RANGE (-128, 127); |
754 | 0 | OP (0) = relocation; |
755 | 0 | break; |
756 | | |
757 | 0 | case R_RX_DIR8S: |
758 | 0 | UNSAFE_FOR_PID; |
759 | 0 | RANGE (-128, 255); |
760 | 0 | OP (0) = relocation; |
761 | 0 | break; |
762 | | |
763 | 0 | case R_RX_DIR8U: |
764 | 0 | UNSAFE_FOR_PID; |
765 | 0 | RANGE (0, 255); |
766 | 0 | OP (0) = relocation; |
767 | 0 | break; |
768 | | |
769 | 0 | case R_RX_RH_16_NEG: |
770 | 0 | WARN_REDHAT ("RX_RH_16_NEG"); |
771 | 0 | relocation = - relocation; |
772 | | /* Fall through. */ |
773 | 0 | case R_RX_DIR16S_PCREL: |
774 | 0 | UNSAFE_FOR_PID; |
775 | 0 | RANGE (-32768, 32767); |
776 | | #if RX_OPCODE_BIG_ENDIAN |
777 | | #else |
778 | 0 | OP (0) = relocation; |
779 | 0 | OP (1) = relocation >> 8; |
780 | 0 | #endif |
781 | 0 | break; |
782 | | |
783 | 0 | case R_RX_RH_16_OP: |
784 | 0 | WARN_REDHAT ("RX_RH_16_OP"); |
785 | 0 | UNSAFE_FOR_PID; |
786 | 0 | RANGE (-32768, 32767); |
787 | | #if RX_OPCODE_BIG_ENDIAN |
788 | | OP (1) = relocation; |
789 | | OP (0) = relocation >> 8; |
790 | | #else |
791 | 0 | OP (0) = relocation; |
792 | 0 | OP (1) = relocation >> 8; |
793 | 0 | #endif |
794 | 0 | break; |
795 | | |
796 | 0 | case R_RX_DIR16S: |
797 | 0 | UNSAFE_FOR_PID; |
798 | 0 | RANGE (-32768, 65535); |
799 | 0 | if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) |
800 | 0 | { |
801 | 0 | OP (1) = relocation; |
802 | 0 | OP (0) = relocation >> 8; |
803 | 0 | } |
804 | 0 | else |
805 | 0 | { |
806 | 0 | OP (0) = relocation; |
807 | 0 | OP (1) = relocation >> 8; |
808 | 0 | } |
809 | 0 | break; |
810 | | |
811 | 0 | case R_RX_DIR16U: |
812 | 0 | UNSAFE_FOR_PID; |
813 | 0 | RANGE (0, 65536); |
814 | | #if RX_OPCODE_BIG_ENDIAN |
815 | | OP (1) = relocation; |
816 | | OP (0) = relocation >> 8; |
817 | | #else |
818 | 0 | OP (0) = relocation; |
819 | 0 | OP (1) = relocation >> 8; |
820 | 0 | #endif |
821 | 0 | break; |
822 | | |
823 | 0 | case R_RX_DIR16: |
824 | 0 | UNSAFE_FOR_PID; |
825 | 0 | RANGE (-32768, 65536); |
826 | | #if RX_OPCODE_BIG_ENDIAN |
827 | | OP (1) = relocation; |
828 | | OP (0) = relocation >> 8; |
829 | | #else |
830 | 0 | OP (0) = relocation; |
831 | 0 | OP (1) = relocation >> 8; |
832 | 0 | #endif |
833 | 0 | break; |
834 | | |
835 | 0 | case R_RX_DIR16_REV: |
836 | 0 | UNSAFE_FOR_PID; |
837 | 0 | RANGE (-32768, 65536); |
838 | | #if RX_OPCODE_BIG_ENDIAN |
839 | | OP (0) = relocation; |
840 | | OP (1) = relocation >> 8; |
841 | | #else |
842 | 0 | OP (1) = relocation; |
843 | 0 | OP (0) = relocation >> 8; |
844 | 0 | #endif |
845 | 0 | break; |
846 | | |
847 | 0 | case R_RX_DIR3U_PCREL: |
848 | 0 | RANGE (3, 10); |
849 | 0 | OP (0) &= 0xf8; |
850 | 0 | OP (0) |= relocation & 0x07; |
851 | 0 | break; |
852 | | |
853 | 0 | case R_RX_RH_24_NEG: |
854 | 0 | UNSAFE_FOR_PID; |
855 | 0 | WARN_REDHAT ("RX_RH_24_NEG"); |
856 | 0 | relocation = - relocation; |
857 | | /* Fall through. */ |
858 | 0 | case R_RX_DIR24S_PCREL: |
859 | 0 | RANGE (-0x800000, 0x7fffff); |
860 | | #if RX_OPCODE_BIG_ENDIAN |
861 | | OP (2) = relocation; |
862 | | OP (1) = relocation >> 8; |
863 | | OP (0) = relocation >> 16; |
864 | | #else |
865 | 0 | OP (0) = relocation; |
866 | 0 | OP (1) = relocation >> 8; |
867 | 0 | OP (2) = relocation >> 16; |
868 | 0 | #endif |
869 | 0 | break; |
870 | | |
871 | 0 | case R_RX_RH_24_OP: |
872 | 0 | UNSAFE_FOR_PID; |
873 | 0 | WARN_REDHAT ("RX_RH_24_OP"); |
874 | 0 | RANGE (-0x800000, 0x7fffff); |
875 | | #if RX_OPCODE_BIG_ENDIAN |
876 | | OP (2) = relocation; |
877 | | OP (1) = relocation >> 8; |
878 | | OP (0) = relocation >> 16; |
879 | | #else |
880 | 0 | OP (0) = relocation; |
881 | 0 | OP (1) = relocation >> 8; |
882 | 0 | OP (2) = relocation >> 16; |
883 | 0 | #endif |
884 | 0 | break; |
885 | | |
886 | 0 | case R_RX_DIR24S: |
887 | 0 | UNSAFE_FOR_PID; |
888 | 0 | RANGE (-0x800000, 0x7fffff); |
889 | 0 | if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) |
890 | 0 | { |
891 | 0 | OP (2) = relocation; |
892 | 0 | OP (1) = relocation >> 8; |
893 | 0 | OP (0) = relocation >> 16; |
894 | 0 | } |
895 | 0 | else |
896 | 0 | { |
897 | 0 | OP (0) = relocation; |
898 | 0 | OP (1) = relocation >> 8; |
899 | 0 | OP (2) = relocation >> 16; |
900 | 0 | } |
901 | 0 | break; |
902 | | |
903 | 0 | case R_RX_RH_24_UNS: |
904 | 0 | UNSAFE_FOR_PID; |
905 | 0 | WARN_REDHAT ("RX_RH_24_UNS"); |
906 | 0 | RANGE (0, 0xffffff); |
907 | | #if RX_OPCODE_BIG_ENDIAN |
908 | | OP (2) = relocation; |
909 | | OP (1) = relocation >> 8; |
910 | | OP (0) = relocation >> 16; |
911 | | #else |
912 | 0 | OP (0) = relocation; |
913 | 0 | OP (1) = relocation >> 8; |
914 | 0 | OP (2) = relocation >> 16; |
915 | 0 | #endif |
916 | 0 | break; |
917 | | |
918 | 0 | case R_RX_RH_32_NEG: |
919 | 0 | UNSAFE_FOR_PID; |
920 | 0 | WARN_REDHAT ("RX_RH_32_NEG"); |
921 | 0 | relocation = - relocation; |
922 | | #if RX_OPCODE_BIG_ENDIAN |
923 | | OP (3) = relocation; |
924 | | OP (2) = relocation >> 8; |
925 | | OP (1) = relocation >> 16; |
926 | | OP (0) = relocation >> 24; |
927 | | #else |
928 | 0 | OP (0) = relocation; |
929 | 0 | OP (1) = relocation >> 8; |
930 | 0 | OP (2) = relocation >> 16; |
931 | 0 | OP (3) = relocation >> 24; |
932 | 0 | #endif |
933 | 0 | break; |
934 | | |
935 | 0 | case R_RX_RH_32_OP: |
936 | 0 | UNSAFE_FOR_PID; |
937 | 0 | WARN_REDHAT ("RX_RH_32_OP"); |
938 | | #if RX_OPCODE_BIG_ENDIAN |
939 | | OP (3) = relocation; |
940 | | OP (2) = relocation >> 8; |
941 | | OP (1) = relocation >> 16; |
942 | | OP (0) = relocation >> 24; |
943 | | #else |
944 | 0 | OP (0) = relocation; |
945 | 0 | OP (1) = relocation >> 8; |
946 | 0 | OP (2) = relocation >> 16; |
947 | 0 | OP (3) = relocation >> 24; |
948 | 0 | #endif |
949 | 0 | break; |
950 | | |
951 | 0 | case R_RX_DIR32: |
952 | 0 | if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) |
953 | 0 | { |
954 | 0 | OP (3) = relocation; |
955 | 0 | OP (2) = relocation >> 8; |
956 | 0 | OP (1) = relocation >> 16; |
957 | 0 | OP (0) = relocation >> 24; |
958 | 0 | } |
959 | 0 | else |
960 | 0 | { |
961 | 0 | OP (0) = relocation; |
962 | 0 | OP (1) = relocation >> 8; |
963 | 0 | OP (2) = relocation >> 16; |
964 | 0 | OP (3) = relocation >> 24; |
965 | 0 | } |
966 | 0 | break; |
967 | | |
968 | 0 | case R_RX_DIR32_REV: |
969 | 0 | if (BIGE (output_bfd)) |
970 | 0 | { |
971 | 0 | OP (0) = relocation; |
972 | 0 | OP (1) = relocation >> 8; |
973 | 0 | OP (2) = relocation >> 16; |
974 | 0 | OP (3) = relocation >> 24; |
975 | 0 | } |
976 | 0 | else |
977 | 0 | { |
978 | 0 | OP (3) = relocation; |
979 | 0 | OP (2) = relocation >> 8; |
980 | 0 | OP (1) = relocation >> 16; |
981 | 0 | OP (0) = relocation >> 24; |
982 | 0 | } |
983 | 0 | break; |
984 | | |
985 | 0 | case R_RX_RH_DIFF: |
986 | 0 | { |
987 | 0 | bfd_vma val; |
988 | 0 | WARN_REDHAT ("RX_RH_DIFF"); |
989 | 0 | val = bfd_get_32 (output_bfd, & OP (0)); |
990 | 0 | val -= relocation; |
991 | 0 | bfd_put_32 (output_bfd, val, & OP (0)); |
992 | 0 | } |
993 | 0 | break; |
994 | | |
995 | 0 | case R_RX_RH_GPRELB: |
996 | 0 | WARN_REDHAT ("RX_RH_GPRELB"); |
997 | 0 | relocation -= get_gp (info, input_bfd, input_section, rel->r_offset); |
998 | 0 | RANGE (0, 65535); |
999 | | #if RX_OPCODE_BIG_ENDIAN |
1000 | | OP (1) = relocation; |
1001 | | OP (0) = relocation >> 8; |
1002 | | #else |
1003 | 0 | OP (0) = relocation; |
1004 | 0 | OP (1) = relocation >> 8; |
1005 | 0 | #endif |
1006 | 0 | break; |
1007 | | |
1008 | 0 | case R_RX_RH_GPRELW: |
1009 | 0 | WARN_REDHAT ("RX_RH_GPRELW"); |
1010 | 0 | relocation -= get_gp (info, input_bfd, input_section, rel->r_offset); |
1011 | 0 | ALIGN (1); |
1012 | 0 | relocation >>= 1; |
1013 | 0 | RANGE (0, 65535); |
1014 | | #if RX_OPCODE_BIG_ENDIAN |
1015 | | OP (1) = relocation; |
1016 | | OP (0) = relocation >> 8; |
1017 | | #else |
1018 | 0 | OP (0) = relocation; |
1019 | 0 | OP (1) = relocation >> 8; |
1020 | 0 | #endif |
1021 | 0 | break; |
1022 | | |
1023 | 0 | case R_RX_RH_GPRELL: |
1024 | 0 | WARN_REDHAT ("RX_RH_GPRELL"); |
1025 | 0 | relocation -= get_gp (info, input_bfd, input_section, rel->r_offset); |
1026 | 0 | ALIGN (3); |
1027 | 0 | relocation >>= 2; |
1028 | 0 | RANGE (0, 65535); |
1029 | | #if RX_OPCODE_BIG_ENDIAN |
1030 | | OP (1) = relocation; |
1031 | | OP (0) = relocation >> 8; |
1032 | | #else |
1033 | 0 | OP (0) = relocation; |
1034 | 0 | OP (1) = relocation >> 8; |
1035 | 0 | #endif |
1036 | 0 | break; |
1037 | | |
1038 | | /* Internal relocations just for relaxation: */ |
1039 | 0 | case R_RX_RH_ABS5p5B: |
1040 | 0 | RX_STACK_POP (relocation); |
1041 | 0 | RANGE (0, 31); |
1042 | 0 | OP (0) &= 0xf8; |
1043 | 0 | OP (0) |= relocation >> 2; |
1044 | 0 | OP (1) &= 0x77; |
1045 | 0 | OP (1) |= (relocation << 6) & 0x80; |
1046 | 0 | OP (1) |= (relocation << 3) & 0x08; |
1047 | 0 | break; |
1048 | | |
1049 | 0 | case R_RX_RH_ABS5p5W: |
1050 | 0 | RX_STACK_POP (relocation); |
1051 | 0 | RANGE (0, 62); |
1052 | 0 | ALIGN (1); |
1053 | 0 | relocation >>= 1; |
1054 | 0 | OP (0) &= 0xf8; |
1055 | 0 | OP (0) |= relocation >> 2; |
1056 | 0 | OP (1) &= 0x77; |
1057 | 0 | OP (1) |= (relocation << 6) & 0x80; |
1058 | 0 | OP (1) |= (relocation << 3) & 0x08; |
1059 | 0 | break; |
1060 | | |
1061 | 0 | case R_RX_RH_ABS5p5L: |
1062 | 0 | RX_STACK_POP (relocation); |
1063 | 0 | RANGE (0, 124); |
1064 | 0 | ALIGN (3); |
1065 | 0 | relocation >>= 2; |
1066 | 0 | OP (0) &= 0xf8; |
1067 | 0 | OP (0) |= relocation >> 2; |
1068 | 0 | OP (1) &= 0x77; |
1069 | 0 | OP (1) |= (relocation << 6) & 0x80; |
1070 | 0 | OP (1) |= (relocation << 3) & 0x08; |
1071 | 0 | break; |
1072 | | |
1073 | 0 | case R_RX_RH_ABS5p8B: |
1074 | 0 | RX_STACK_POP (relocation); |
1075 | 0 | RANGE (0, 31); |
1076 | 0 | OP (0) &= 0x70; |
1077 | 0 | OP (0) |= (relocation << 3) & 0x80; |
1078 | 0 | OP (0) |= relocation & 0x0f; |
1079 | 0 | break; |
1080 | | |
1081 | 0 | case R_RX_RH_ABS5p8W: |
1082 | 0 | RX_STACK_POP (relocation); |
1083 | 0 | RANGE (0, 62); |
1084 | 0 | ALIGN (1); |
1085 | 0 | relocation >>= 1; |
1086 | 0 | OP (0) &= 0x70; |
1087 | 0 | OP (0) |= (relocation << 3) & 0x80; |
1088 | 0 | OP (0) |= relocation & 0x0f; |
1089 | 0 | break; |
1090 | | |
1091 | 0 | case R_RX_RH_ABS5p8L: |
1092 | 0 | RX_STACK_POP (relocation); |
1093 | 0 | RANGE (0, 124); |
1094 | 0 | ALIGN (3); |
1095 | 0 | relocation >>= 2; |
1096 | 0 | OP (0) &= 0x70; |
1097 | 0 | OP (0) |= (relocation << 3) & 0x80; |
1098 | 0 | OP (0) |= relocation & 0x0f; |
1099 | 0 | break; |
1100 | | |
1101 | 0 | case R_RX_RH_UIMM4p8: |
1102 | 0 | RANGE (0, 15); |
1103 | 0 | OP (0) &= 0x0f; |
1104 | 0 | OP (0) |= relocation << 4; |
1105 | 0 | break; |
1106 | | |
1107 | 0 | case R_RX_RH_UNEG4p8: |
1108 | 0 | RANGE (-15, 0); |
1109 | 0 | OP (0) &= 0x0f; |
1110 | 0 | OP (0) |= (-relocation) << 4; |
1111 | 0 | break; |
1112 | | |
1113 | | /* Complex reloc handling: */ |
1114 | | |
1115 | 0 | case R_RX_ABS32: |
1116 | 0 | UNSAFE_FOR_PID; |
1117 | 0 | RX_STACK_POP (relocation); |
1118 | | #if RX_OPCODE_BIG_ENDIAN |
1119 | | OP (3) = relocation; |
1120 | | OP (2) = relocation >> 8; |
1121 | | OP (1) = relocation >> 16; |
1122 | | OP (0) = relocation >> 24; |
1123 | | #else |
1124 | 0 | OP (0) = relocation; |
1125 | 0 | OP (1) = relocation >> 8; |
1126 | 0 | OP (2) = relocation >> 16; |
1127 | 0 | OP (3) = relocation >> 24; |
1128 | 0 | #endif |
1129 | 0 | break; |
1130 | | |
1131 | 0 | case R_RX_ABS32_REV: |
1132 | 0 | UNSAFE_FOR_PID; |
1133 | 0 | RX_STACK_POP (relocation); |
1134 | | #if RX_OPCODE_BIG_ENDIAN |
1135 | | OP (0) = relocation; |
1136 | | OP (1) = relocation >> 8; |
1137 | | OP (2) = relocation >> 16; |
1138 | | OP (3) = relocation >> 24; |
1139 | | #else |
1140 | 0 | OP (3) = relocation; |
1141 | 0 | OP (2) = relocation >> 8; |
1142 | 0 | OP (1) = relocation >> 16; |
1143 | 0 | OP (0) = relocation >> 24; |
1144 | 0 | #endif |
1145 | 0 | break; |
1146 | | |
1147 | 0 | case R_RX_ABS24S_PCREL: |
1148 | 0 | case R_RX_ABS24S: |
1149 | 0 | UNSAFE_FOR_PID; |
1150 | 0 | RX_STACK_POP (relocation); |
1151 | 0 | RANGE (-0x800000, 0x7fffff); |
1152 | 0 | if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) |
1153 | 0 | { |
1154 | 0 | OP (2) = relocation; |
1155 | 0 | OP (1) = relocation >> 8; |
1156 | 0 | OP (0) = relocation >> 16; |
1157 | 0 | } |
1158 | 0 | else |
1159 | 0 | { |
1160 | 0 | OP (0) = relocation; |
1161 | 0 | OP (1) = relocation >> 8; |
1162 | 0 | OP (2) = relocation >> 16; |
1163 | 0 | } |
1164 | 0 | break; |
1165 | | |
1166 | 0 | case R_RX_ABS16: |
1167 | 0 | UNSAFE_FOR_PID; |
1168 | 0 | RX_STACK_POP (relocation); |
1169 | 0 | RANGE (-32768, 65535); |
1170 | | #if RX_OPCODE_BIG_ENDIAN |
1171 | | OP (1) = relocation; |
1172 | | OP (0) = relocation >> 8; |
1173 | | #else |
1174 | 0 | OP (0) = relocation; |
1175 | 0 | OP (1) = relocation >> 8; |
1176 | 0 | #endif |
1177 | 0 | break; |
1178 | | |
1179 | 0 | case R_RX_ABS16_REV: |
1180 | 0 | UNSAFE_FOR_PID; |
1181 | 0 | RX_STACK_POP (relocation); |
1182 | 0 | RANGE (-32768, 65535); |
1183 | | #if RX_OPCODE_BIG_ENDIAN |
1184 | | OP (0) = relocation; |
1185 | | OP (1) = relocation >> 8; |
1186 | | #else |
1187 | 0 | OP (1) = relocation; |
1188 | 0 | OP (0) = relocation >> 8; |
1189 | 0 | #endif |
1190 | 0 | break; |
1191 | | |
1192 | 0 | case R_RX_ABS16S_PCREL: |
1193 | 0 | case R_RX_ABS16S: |
1194 | 0 | RX_STACK_POP (relocation); |
1195 | 0 | RANGE (-32768, 32767); |
1196 | 0 | if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE)) |
1197 | 0 | { |
1198 | 0 | OP (1) = relocation; |
1199 | 0 | OP (0) = relocation >> 8; |
1200 | 0 | } |
1201 | 0 | else |
1202 | 0 | { |
1203 | 0 | OP (0) = relocation; |
1204 | 0 | OP (1) = relocation >> 8; |
1205 | 0 | } |
1206 | 0 | break; |
1207 | | |
1208 | 0 | case R_RX_ABS16U: |
1209 | 0 | UNSAFE_FOR_PID; |
1210 | 0 | RX_STACK_POP (relocation); |
1211 | 0 | RANGE (0, 65536); |
1212 | | #if RX_OPCODE_BIG_ENDIAN |
1213 | | OP (1) = relocation; |
1214 | | OP (0) = relocation >> 8; |
1215 | | #else |
1216 | 0 | OP (0) = relocation; |
1217 | 0 | OP (1) = relocation >> 8; |
1218 | 0 | #endif |
1219 | 0 | break; |
1220 | | |
1221 | 0 | case R_RX_ABS16UL: |
1222 | 0 | UNSAFE_FOR_PID; |
1223 | 0 | RX_STACK_POP (relocation); |
1224 | 0 | relocation >>= 2; |
1225 | 0 | RANGE (0, 65536); |
1226 | | #if RX_OPCODE_BIG_ENDIAN |
1227 | | OP (1) = relocation; |
1228 | | OP (0) = relocation >> 8; |
1229 | | #else |
1230 | 0 | OP (0) = relocation; |
1231 | 0 | OP (1) = relocation >> 8; |
1232 | 0 | #endif |
1233 | 0 | break; |
1234 | | |
1235 | 0 | case R_RX_ABS16UW: |
1236 | 0 | UNSAFE_FOR_PID; |
1237 | 0 | RX_STACK_POP (relocation); |
1238 | 0 | relocation >>= 1; |
1239 | 0 | RANGE (0, 65536); |
1240 | | #if RX_OPCODE_BIG_ENDIAN |
1241 | | OP (1) = relocation; |
1242 | | OP (0) = relocation >> 8; |
1243 | | #else |
1244 | 0 | OP (0) = relocation; |
1245 | 0 | OP (1) = relocation >> 8; |
1246 | 0 | #endif |
1247 | 0 | break; |
1248 | | |
1249 | 0 | case R_RX_ABS8: |
1250 | 0 | UNSAFE_FOR_PID; |
1251 | 0 | RX_STACK_POP (relocation); |
1252 | 0 | RANGE (-128, 255); |
1253 | 0 | OP (0) = relocation; |
1254 | 0 | break; |
1255 | | |
1256 | 0 | case R_RX_ABS8U: |
1257 | 0 | UNSAFE_FOR_PID; |
1258 | 0 | RX_STACK_POP (relocation); |
1259 | 0 | RANGE (0, 255); |
1260 | 0 | OP (0) = relocation; |
1261 | 0 | break; |
1262 | | |
1263 | 0 | case R_RX_ABS8UL: |
1264 | 0 | UNSAFE_FOR_PID; |
1265 | 0 | RX_STACK_POP (relocation); |
1266 | 0 | relocation >>= 2; |
1267 | 0 | RANGE (0, 255); |
1268 | 0 | OP (0) = relocation; |
1269 | 0 | break; |
1270 | | |
1271 | 0 | case R_RX_ABS8UW: |
1272 | 0 | UNSAFE_FOR_PID; |
1273 | 0 | RX_STACK_POP (relocation); |
1274 | 0 | relocation >>= 1; |
1275 | 0 | RANGE (0, 255); |
1276 | 0 | OP (0) = relocation; |
1277 | 0 | break; |
1278 | | |
1279 | 0 | case R_RX_ABS8S: |
1280 | 0 | UNSAFE_FOR_PID; |
1281 | | /* Fall through. */ |
1282 | 0 | case R_RX_ABS8S_PCREL: |
1283 | 0 | RX_STACK_POP (relocation); |
1284 | 0 | RANGE (-128, 127); |
1285 | 0 | OP (0) = relocation; |
1286 | 0 | break; |
1287 | | |
1288 | 0 | case R_RX_SYM: |
1289 | 0 | if (r_symndx < symtab_hdr->sh_info) |
1290 | 0 | RX_STACK_PUSH (sec->output_section->vma |
1291 | 0 | + sec->output_offset |
1292 | 0 | + sym->st_value |
1293 | 0 | + rel->r_addend); |
1294 | 0 | else |
1295 | 0 | { |
1296 | 0 | if (h != NULL |
1297 | 0 | && (h->root.type == bfd_link_hash_defined |
1298 | 0 | || h->root.type == bfd_link_hash_defweak)) |
1299 | 0 | RX_STACK_PUSH (h->root.u.def.value |
1300 | 0 | + sec->output_section->vma |
1301 | 0 | + sec->output_offset |
1302 | 0 | + rel->r_addend); |
1303 | 0 | else |
1304 | 0 | _bfd_error_handler |
1305 | 0 | (_("warning: RX_SYM reloc with an unknown symbol")); |
1306 | 0 | } |
1307 | 0 | break; |
1308 | | |
1309 | 0 | case R_RX_OPneg: |
1310 | 0 | { |
1311 | 0 | int32_t tmp; |
1312 | |
|
1313 | 0 | saw_subtract = true; |
1314 | 0 | RX_STACK_POP (tmp); |
1315 | 0 | tmp = - tmp; |
1316 | 0 | RX_STACK_PUSH (tmp); |
1317 | 0 | } |
1318 | 0 | break; |
1319 | | |
1320 | 0 | case R_RX_OPadd: |
1321 | 0 | { |
1322 | 0 | int32_t tmp1, tmp2; |
1323 | |
|
1324 | 0 | RX_STACK_POP (tmp1); |
1325 | 0 | RX_STACK_POP (tmp2); |
1326 | 0 | tmp1 += tmp2; |
1327 | 0 | RX_STACK_PUSH (tmp1); |
1328 | 0 | } |
1329 | 0 | break; |
1330 | | |
1331 | 0 | case R_RX_OPsub: |
1332 | 0 | { |
1333 | 0 | int32_t tmp1, tmp2; |
1334 | |
|
1335 | 0 | saw_subtract = true; |
1336 | 0 | RX_STACK_POP (tmp1); |
1337 | 0 | RX_STACK_POP (tmp2); |
1338 | 0 | tmp2 -= tmp1; |
1339 | 0 | RX_STACK_PUSH (tmp2); |
1340 | 0 | } |
1341 | 0 | break; |
1342 | | |
1343 | 0 | case R_RX_OPmul: |
1344 | 0 | { |
1345 | 0 | int32_t tmp1, tmp2; |
1346 | |
|
1347 | 0 | RX_STACK_POP (tmp1); |
1348 | 0 | RX_STACK_POP (tmp2); |
1349 | 0 | tmp1 *= tmp2; |
1350 | 0 | RX_STACK_PUSH (tmp1); |
1351 | 0 | } |
1352 | 0 | break; |
1353 | | |
1354 | 0 | case R_RX_OPdiv: |
1355 | 0 | { |
1356 | 0 | int32_t tmp1, tmp2; |
1357 | |
|
1358 | 0 | RX_STACK_POP (tmp1); |
1359 | 0 | RX_STACK_POP (tmp2); |
1360 | 0 | tmp1 /= tmp2; |
1361 | 0 | RX_STACK_PUSH (tmp1); |
1362 | 0 | } |
1363 | 0 | break; |
1364 | | |
1365 | 0 | case R_RX_OPshla: |
1366 | 0 | { |
1367 | 0 | int32_t tmp1, tmp2; |
1368 | |
|
1369 | 0 | RX_STACK_POP (tmp1); |
1370 | 0 | RX_STACK_POP (tmp2); |
1371 | 0 | tmp1 <<= tmp2; |
1372 | 0 | RX_STACK_PUSH (tmp1); |
1373 | 0 | } |
1374 | 0 | break; |
1375 | | |
1376 | 0 | case R_RX_OPshra: |
1377 | 0 | { |
1378 | 0 | int32_t tmp1, tmp2; |
1379 | |
|
1380 | 0 | RX_STACK_POP (tmp1); |
1381 | 0 | RX_STACK_POP (tmp2); |
1382 | 0 | tmp1 >>= tmp2; |
1383 | 0 | RX_STACK_PUSH (tmp1); |
1384 | 0 | } |
1385 | 0 | break; |
1386 | | |
1387 | 0 | case R_RX_OPsctsize: |
1388 | 0 | RX_STACK_PUSH (input_section->size); |
1389 | 0 | break; |
1390 | | |
1391 | 0 | case R_RX_OPscttop: |
1392 | 0 | RX_STACK_PUSH (input_section->output_section->vma); |
1393 | 0 | break; |
1394 | | |
1395 | 0 | case R_RX_OPand: |
1396 | 0 | { |
1397 | 0 | int32_t tmp1, tmp2; |
1398 | |
|
1399 | 0 | RX_STACK_POP (tmp1); |
1400 | 0 | RX_STACK_POP (tmp2); |
1401 | 0 | tmp1 &= tmp2; |
1402 | 0 | RX_STACK_PUSH (tmp1); |
1403 | 0 | } |
1404 | 0 | break; |
1405 | | |
1406 | 0 | case R_RX_OPor: |
1407 | 0 | { |
1408 | 0 | int32_t tmp1, tmp2; |
1409 | |
|
1410 | 0 | RX_STACK_POP (tmp1); |
1411 | 0 | RX_STACK_POP (tmp2); |
1412 | 0 | tmp1 |= tmp2; |
1413 | 0 | RX_STACK_PUSH (tmp1); |
1414 | 0 | } |
1415 | 0 | break; |
1416 | | |
1417 | 0 | case R_RX_OPxor: |
1418 | 0 | { |
1419 | 0 | int32_t tmp1, tmp2; |
1420 | |
|
1421 | 0 | RX_STACK_POP (tmp1); |
1422 | 0 | RX_STACK_POP (tmp2); |
1423 | 0 | tmp1 ^= tmp2; |
1424 | 0 | RX_STACK_PUSH (tmp1); |
1425 | 0 | } |
1426 | 0 | break; |
1427 | | |
1428 | 0 | case R_RX_OPnot: |
1429 | 0 | { |
1430 | 0 | int32_t tmp; |
1431 | |
|
1432 | 0 | RX_STACK_POP (tmp); |
1433 | 0 | tmp = ~ tmp; |
1434 | 0 | RX_STACK_PUSH (tmp); |
1435 | 0 | } |
1436 | 0 | break; |
1437 | | |
1438 | 0 | case R_RX_OPmod: |
1439 | 0 | { |
1440 | 0 | int32_t tmp1, tmp2; |
1441 | |
|
1442 | 0 | RX_STACK_POP (tmp1); |
1443 | 0 | RX_STACK_POP (tmp2); |
1444 | 0 | tmp1 %= tmp2; |
1445 | 0 | RX_STACK_PUSH (tmp1); |
1446 | 0 | } |
1447 | 0 | break; |
1448 | | |
1449 | 0 | case R_RX_OPromtop: |
1450 | 0 | RX_STACK_PUSH (get_romstart (info, input_bfd, input_section, rel->r_offset)); |
1451 | 0 | break; |
1452 | | |
1453 | 0 | case R_RX_OPramtop: |
1454 | 0 | RX_STACK_PUSH (get_ramstart (info, input_bfd, input_section, rel->r_offset)); |
1455 | 0 | break; |
1456 | | |
1457 | 0 | default: |
1458 | 0 | r = bfd_reloc_notsupported; |
1459 | 0 | break; |
1460 | 0 | } |
1461 | | |
1462 | 0 | if (r != bfd_reloc_ok) |
1463 | 0 | { |
1464 | 0 | const char * msg = NULL; |
1465 | |
|
1466 | 0 | switch (r) |
1467 | 0 | { |
1468 | 0 | case bfd_reloc_overflow: |
1469 | | /* Catch the case of a missing function declaration |
1470 | | and emit a more helpful error message. */ |
1471 | 0 | if (r_type == R_RX_DIR24S_PCREL) |
1472 | | /* xgettext:c-format */ |
1473 | 0 | msg = _("%pB(%pA): error: call to undefined function '%s'"); |
1474 | 0 | else |
1475 | 0 | (*info->callbacks->reloc_overflow) |
1476 | 0 | (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0, |
1477 | 0 | input_bfd, input_section, rel->r_offset); |
1478 | 0 | break; |
1479 | | |
1480 | 0 | case bfd_reloc_undefined: |
1481 | 0 | (*info->callbacks->undefined_symbol) |
1482 | 0 | (info, name, input_bfd, input_section, rel->r_offset, true); |
1483 | 0 | break; |
1484 | | |
1485 | 0 | case bfd_reloc_other: |
1486 | | /* xgettext:c-format */ |
1487 | 0 | msg = _("%pB(%pA): warning: unaligned access to symbol '%s' in the small data area"); |
1488 | 0 | break; |
1489 | | |
1490 | 0 | case bfd_reloc_outofrange: |
1491 | | /* xgettext:c-format */ |
1492 | 0 | msg = _("%pB(%pA): internal error: out of range error"); |
1493 | 0 | break; |
1494 | | |
1495 | 0 | case bfd_reloc_notsupported: |
1496 | | /* xgettext:c-format */ |
1497 | 0 | msg = _("%pB(%pA): internal error: unsupported relocation error"); |
1498 | 0 | break; |
1499 | | |
1500 | 0 | case bfd_reloc_dangerous: |
1501 | | /* xgettext:c-format */ |
1502 | 0 | msg = _("%pB(%pA): internal error: dangerous relocation"); |
1503 | 0 | break; |
1504 | | |
1505 | 0 | default: |
1506 | | /* xgettext:c-format */ |
1507 | 0 | msg = _("%pB(%pA): internal error: unknown error"); |
1508 | 0 | break; |
1509 | 0 | } |
1510 | | |
1511 | 0 | if (msg) |
1512 | 0 | _bfd_error_handler (msg, input_bfd, input_section, name); |
1513 | 0 | } |
1514 | 0 | } |
1515 | | |
1516 | 0 | return true; |
1517 | 0 | } |
1518 | | |
1519 | | /* Relaxation Support. */ |
1520 | | |
1521 | | /* Progression of relocations from largest operand size to smallest |
1522 | | operand size. */ |
1523 | | |
1524 | | static int |
1525 | | next_smaller_reloc (int r) |
1526 | 0 | { |
1527 | 0 | switch (r) |
1528 | 0 | { |
1529 | 0 | case R_RX_DIR32: return R_RX_DIR24S; |
1530 | 0 | case R_RX_DIR24S: return R_RX_DIR16S; |
1531 | 0 | case R_RX_DIR16S: return R_RX_DIR8S; |
1532 | 0 | case R_RX_DIR8S: return R_RX_NONE; |
1533 | | |
1534 | 0 | case R_RX_DIR16: return R_RX_DIR8; |
1535 | 0 | case R_RX_DIR8: return R_RX_NONE; |
1536 | | |
1537 | 0 | case R_RX_DIR16U: return R_RX_DIR8U; |
1538 | 0 | case R_RX_DIR8U: return R_RX_NONE; |
1539 | | |
1540 | 0 | case R_RX_DIR24S_PCREL: return R_RX_DIR16S_PCREL; |
1541 | 0 | case R_RX_DIR16S_PCREL: return R_RX_DIR8S_PCREL; |
1542 | 0 | case R_RX_DIR8S_PCREL: return R_RX_DIR3U_PCREL; |
1543 | | |
1544 | 0 | case R_RX_DIR16UL: return R_RX_DIR8UL; |
1545 | 0 | case R_RX_DIR8UL: return R_RX_NONE; |
1546 | 0 | case R_RX_DIR16UW: return R_RX_DIR8UW; |
1547 | 0 | case R_RX_DIR8UW: return R_RX_NONE; |
1548 | | |
1549 | 0 | case R_RX_RH_32_OP: return R_RX_RH_24_OP; |
1550 | 0 | case R_RX_RH_24_OP: return R_RX_RH_16_OP; |
1551 | 0 | case R_RX_RH_16_OP: return R_RX_DIR8; |
1552 | | |
1553 | 0 | case R_RX_ABS32: return R_RX_ABS24S; |
1554 | 0 | case R_RX_ABS24S: return R_RX_ABS16S; |
1555 | 0 | case R_RX_ABS16: return R_RX_ABS8; |
1556 | 0 | case R_RX_ABS16U: return R_RX_ABS8U; |
1557 | 0 | case R_RX_ABS16S: return R_RX_ABS8S; |
1558 | 0 | case R_RX_ABS8: return R_RX_NONE; |
1559 | 0 | case R_RX_ABS8U: return R_RX_NONE; |
1560 | 0 | case R_RX_ABS8S: return R_RX_NONE; |
1561 | 0 | case R_RX_ABS24S_PCREL: return R_RX_ABS16S_PCREL; |
1562 | 0 | case R_RX_ABS16S_PCREL: return R_RX_ABS8S_PCREL; |
1563 | 0 | case R_RX_ABS8S_PCREL: return R_RX_NONE; |
1564 | 0 | case R_RX_ABS16UL: return R_RX_ABS8UL; |
1565 | 0 | case R_RX_ABS16UW: return R_RX_ABS8UW; |
1566 | 0 | case R_RX_ABS8UL: return R_RX_NONE; |
1567 | 0 | case R_RX_ABS8UW: return R_RX_NONE; |
1568 | 0 | } |
1569 | 0 | return r; |
1570 | 0 | }; |
1571 | | |
1572 | | /* Delete some bytes from a section while relaxing. */ |
1573 | | |
1574 | | static bool |
1575 | | elf32_rx_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count, |
1576 | | Elf_Internal_Rela *alignment_rel, int force_snip, |
1577 | | Elf_Internal_Rela *irelstart) |
1578 | 0 | { |
1579 | 0 | Elf_Internal_Shdr * symtab_hdr; |
1580 | 0 | unsigned int sec_shndx; |
1581 | 0 | bfd_byte * contents; |
1582 | 0 | Elf_Internal_Rela * irel; |
1583 | 0 | Elf_Internal_Rela * irelend; |
1584 | 0 | Elf_Internal_Sym * isym; |
1585 | 0 | Elf_Internal_Sym * isymend; |
1586 | 0 | bfd_vma toaddr; |
1587 | 0 | unsigned int symcount; |
1588 | 0 | struct elf_link_hash_entry ** sym_hashes; |
1589 | 0 | struct elf_link_hash_entry ** end_hashes; |
1590 | |
|
1591 | 0 | if (!alignment_rel) |
1592 | 0 | force_snip = 1; |
1593 | |
|
1594 | 0 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
1595 | |
|
1596 | 0 | contents = elf_section_data (sec)->this_hdr.contents; |
1597 | | |
1598 | | /* The deletion must stop at the next alignment boundary, if |
1599 | | ALIGNMENT_REL is non-NULL. */ |
1600 | 0 | toaddr = sec->size; |
1601 | 0 | if (alignment_rel) |
1602 | 0 | toaddr = alignment_rel->r_offset; |
1603 | |
|
1604 | 0 | BFD_ASSERT (toaddr > addr); |
1605 | | |
1606 | | /* Actually delete the bytes. */ |
1607 | 0 | memmove (contents + addr, contents + addr + count, |
1608 | 0 | (size_t) (toaddr - addr - count)); |
1609 | | |
1610 | | /* If we don't have an alignment marker to worry about, we can just |
1611 | | shrink the section. Otherwise, we have to fill in the newly |
1612 | | created gap with NOP insns (0x03). */ |
1613 | 0 | if (force_snip) |
1614 | 0 | sec->size -= count; |
1615 | 0 | else |
1616 | 0 | memset (contents + toaddr - count, 0x03, count); |
1617 | |
|
1618 | 0 | irel = irelstart; |
1619 | 0 | BFD_ASSERT (irel != NULL || sec->reloc_count == 0); |
1620 | 0 | irelend = irel + sec->reloc_count; |
1621 | | |
1622 | | /* Adjust all the relocs. */ |
1623 | 0 | for (; irel < irelend; irel++) |
1624 | 0 | { |
1625 | | /* Get the new reloc address. */ |
1626 | 0 | if (irel->r_offset > addr |
1627 | 0 | && (irel->r_offset < toaddr |
1628 | 0 | || (force_snip && irel->r_offset == toaddr))) |
1629 | 0 | irel->r_offset -= count; |
1630 | | |
1631 | | /* If we see an ALIGN marker at the end of the gap, we move it |
1632 | | to the beginning of the gap, since marking these gaps is what |
1633 | | they're for. */ |
1634 | 0 | if (irel->r_offset == toaddr |
1635 | 0 | && ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX |
1636 | 0 | && irel->r_addend & RX_RELAXA_ALIGN) |
1637 | 0 | irel->r_offset -= count; |
1638 | 0 | } |
1639 | | |
1640 | | /* Adjust the local symbols defined in this section. */ |
1641 | 0 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1642 | 0 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
1643 | 0 | isymend = isym + symtab_hdr->sh_info; |
1644 | |
|
1645 | 0 | for (; isym < isymend; isym++) |
1646 | 0 | { |
1647 | | /* If the symbol is in the range of memory we just moved, we |
1648 | | have to adjust its value. */ |
1649 | 0 | if (isym->st_shndx == sec_shndx |
1650 | 0 | && isym->st_value > addr |
1651 | 0 | && isym->st_value < toaddr) |
1652 | 0 | isym->st_value -= count; |
1653 | | |
1654 | | /* If the symbol *spans* the bytes we just deleted (i.e. it's |
1655 | | *end* is in the moved bytes but it's *start* isn't), then we |
1656 | | must adjust its size. */ |
1657 | 0 | if (isym->st_shndx == sec_shndx |
1658 | 0 | && isym->st_value < addr |
1659 | 0 | && isym->st_value + isym->st_size > addr |
1660 | 0 | && isym->st_value + isym->st_size < toaddr) |
1661 | 0 | isym->st_size -= count; |
1662 | 0 | } |
1663 | | |
1664 | | /* Now adjust the global symbols defined in this section. */ |
1665 | 0 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1666 | 0 | - symtab_hdr->sh_info); |
1667 | 0 | sym_hashes = elf_sym_hashes (abfd); |
1668 | 0 | end_hashes = sym_hashes + symcount; |
1669 | |
|
1670 | 0 | for (; sym_hashes < end_hashes; sym_hashes++) |
1671 | 0 | { |
1672 | 0 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1673 | |
|
1674 | 0 | if ((sym_hash->root.type == bfd_link_hash_defined |
1675 | 0 | || sym_hash->root.type == bfd_link_hash_defweak) |
1676 | 0 | && sym_hash->root.u.def.section == sec) |
1677 | 0 | { |
1678 | | /* As above, adjust the value if needed. */ |
1679 | 0 | if (sym_hash->root.u.def.value > addr |
1680 | 0 | && sym_hash->root.u.def.value < toaddr) |
1681 | 0 | sym_hash->root.u.def.value -= count; |
1682 | | |
1683 | | /* As above, adjust the size if needed. */ |
1684 | 0 | if (sym_hash->root.u.def.value < addr |
1685 | 0 | && sym_hash->root.u.def.value + sym_hash->size > addr |
1686 | 0 | && sym_hash->root.u.def.value + sym_hash->size < toaddr) |
1687 | 0 | sym_hash->size -= count; |
1688 | 0 | } |
1689 | 0 | } |
1690 | |
|
1691 | 0 | return true; |
1692 | 0 | } |
1693 | | |
1694 | | /* Used to sort relocs by address. If relocs have the same address, |
1695 | | we maintain their relative order, except that R_RX_RH_RELAX |
1696 | | alignment relocs must be the first reloc for any given address. */ |
1697 | | |
1698 | | static void |
1699 | | reloc_bubblesort (Elf_Internal_Rela * r, int count) |
1700 | 0 | { |
1701 | 0 | int i; |
1702 | 0 | bool again; |
1703 | 0 | bool swappit; |
1704 | | |
1705 | | /* This is almost a classic bubblesort. It's the slowest sort, but |
1706 | | we're taking advantage of the fact that the relocations are |
1707 | | mostly in order already (the assembler emits them that way) and |
1708 | | we need relocs with the same address to remain in the same |
1709 | | relative order. */ |
1710 | 0 | again = true; |
1711 | 0 | while (again) |
1712 | 0 | { |
1713 | 0 | again = false; |
1714 | 0 | for (i = 0; i < count - 1; i ++) |
1715 | 0 | { |
1716 | 0 | if (r[i].r_offset > r[i + 1].r_offset) |
1717 | 0 | swappit = true; |
1718 | 0 | else if (r[i].r_offset < r[i + 1].r_offset) |
1719 | 0 | swappit = false; |
1720 | 0 | else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX |
1721 | 0 | && (r[i + 1].r_addend & RX_RELAXA_ALIGN)) |
1722 | 0 | swappit = true; |
1723 | 0 | else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX |
1724 | 0 | && (r[i + 1].r_addend & RX_RELAXA_ELIGN) |
1725 | 0 | && !(ELF32_R_TYPE (r[i].r_info) == R_RX_RH_RELAX |
1726 | 0 | && (r[i].r_addend & RX_RELAXA_ALIGN))) |
1727 | 0 | swappit = true; |
1728 | 0 | else |
1729 | 0 | swappit = false; |
1730 | |
|
1731 | 0 | if (swappit) |
1732 | 0 | { |
1733 | 0 | Elf_Internal_Rela tmp; |
1734 | |
|
1735 | 0 | tmp = r[i]; |
1736 | 0 | r[i] = r[i + 1]; |
1737 | 0 | r[i + 1] = tmp; |
1738 | | /* If we do move a reloc back, re-scan to see if it |
1739 | | needs to be moved even further back. This avoids |
1740 | | most of the O(n^2) behavior for our cases. */ |
1741 | 0 | if (i > 0) |
1742 | 0 | i -= 2; |
1743 | 0 | again = true; |
1744 | 0 | } |
1745 | 0 | } |
1746 | 0 | } |
1747 | 0 | } |
1748 | | |
1749 | | |
1750 | | #define OFFSET_FOR_RELOC(rel, lrel, scale) \ |
1751 | 0 | rx_offset_for_reloc (abfd, rel + 1, symtab_hdr, shndx_buf, intsyms, \ |
1752 | 0 | lrel, abfd, sec, link_info, scale) |
1753 | | |
1754 | | static bfd_vma |
1755 | | rx_offset_for_reloc (bfd * abfd, |
1756 | | Elf_Internal_Rela * rel, |
1757 | | Elf_Internal_Shdr * symtab_hdr, |
1758 | | bfd_byte * shndx_buf ATTRIBUTE_UNUSED, |
1759 | | Elf_Internal_Sym * intsyms, |
1760 | | Elf_Internal_Rela ** lrel, |
1761 | | bfd * input_bfd, |
1762 | | asection * input_section, |
1763 | | struct bfd_link_info * info, |
1764 | | int * scale) |
1765 | 0 | { |
1766 | 0 | bfd_vma symval; |
1767 | 0 | bfd_reloc_status_type r; |
1768 | |
|
1769 | 0 | *scale = 1; |
1770 | | |
1771 | | /* REL is the first of 1..N relocations. We compute the symbol |
1772 | | value for each relocation, then combine them if needed. LREL |
1773 | | gets a pointer to the last relocation used. */ |
1774 | 0 | while (1) |
1775 | 0 | { |
1776 | 0 | int32_t tmp1, tmp2; |
1777 | | |
1778 | | /* Get the value of the symbol referred to by the reloc. */ |
1779 | 0 | if (ELF32_R_SYM (rel->r_info) < symtab_hdr->sh_info) |
1780 | 0 | { |
1781 | | /* A local symbol. */ |
1782 | 0 | Elf_Internal_Sym *isym; |
1783 | 0 | asection *ssec; |
1784 | |
|
1785 | 0 | isym = intsyms + ELF32_R_SYM (rel->r_info); |
1786 | |
|
1787 | 0 | if (isym->st_shndx == SHN_UNDEF) |
1788 | 0 | ssec = bfd_und_section_ptr; |
1789 | 0 | else if (isym->st_shndx == SHN_ABS) |
1790 | 0 | ssec = bfd_abs_section_ptr; |
1791 | 0 | else if (isym->st_shndx == SHN_COMMON) |
1792 | 0 | ssec = bfd_com_section_ptr; |
1793 | 0 | else |
1794 | 0 | ssec = bfd_section_from_elf_index (abfd, |
1795 | 0 | isym->st_shndx); |
1796 | | |
1797 | | /* Initial symbol value. */ |
1798 | 0 | symval = isym->st_value; |
1799 | | |
1800 | | /* GAS may have made this symbol relative to a section, in |
1801 | | which case, we have to add the addend to find the |
1802 | | symbol. */ |
1803 | 0 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) |
1804 | 0 | symval += rel->r_addend; |
1805 | |
|
1806 | 0 | if (ssec) |
1807 | 0 | { |
1808 | 0 | if ((ssec->flags & SEC_MERGE) |
1809 | 0 | && ssec->sec_info_type == SEC_INFO_TYPE_MERGE) |
1810 | 0 | symval = _bfd_merged_section_offset (abfd, & ssec, symval); |
1811 | 0 | } |
1812 | | |
1813 | | /* Now make the offset relative to where the linker is putting it. */ |
1814 | 0 | if (ssec) |
1815 | 0 | symval += |
1816 | 0 | ssec->output_section->vma + ssec->output_offset; |
1817 | |
|
1818 | 0 | symval += rel->r_addend; |
1819 | 0 | } |
1820 | 0 | else |
1821 | 0 | { |
1822 | 0 | unsigned long indx; |
1823 | 0 | struct elf_link_hash_entry * h; |
1824 | | |
1825 | | /* An external symbol. */ |
1826 | 0 | indx = ELF32_R_SYM (rel->r_info) - symtab_hdr->sh_info; |
1827 | 0 | h = elf_sym_hashes (abfd)[indx]; |
1828 | 0 | BFD_ASSERT (h != NULL); |
1829 | |
|
1830 | 0 | if (h->root.type != bfd_link_hash_defined |
1831 | 0 | && h->root.type != bfd_link_hash_defweak) |
1832 | 0 | { |
1833 | | /* This appears to be a reference to an undefined |
1834 | | symbol. Just ignore it--it will be caught by the |
1835 | | regular reloc processing. */ |
1836 | 0 | if (lrel) |
1837 | 0 | *lrel = rel; |
1838 | 0 | return 0; |
1839 | 0 | } |
1840 | | |
1841 | 0 | symval = (h->root.u.def.value |
1842 | 0 | + h->root.u.def.section->output_section->vma |
1843 | 0 | + h->root.u.def.section->output_offset); |
1844 | |
|
1845 | 0 | symval += rel->r_addend; |
1846 | 0 | } |
1847 | | |
1848 | 0 | switch (ELF32_R_TYPE (rel->r_info)) |
1849 | 0 | { |
1850 | 0 | case R_RX_SYM: |
1851 | 0 | RX_STACK_PUSH (symval); |
1852 | 0 | break; |
1853 | | |
1854 | 0 | case R_RX_OPneg: |
1855 | 0 | RX_STACK_POP (tmp1); |
1856 | 0 | tmp1 = - tmp1; |
1857 | 0 | RX_STACK_PUSH (tmp1); |
1858 | 0 | break; |
1859 | | |
1860 | 0 | case R_RX_OPadd: |
1861 | 0 | RX_STACK_POP (tmp1); |
1862 | 0 | RX_STACK_POP (tmp2); |
1863 | 0 | tmp1 += tmp2; |
1864 | 0 | RX_STACK_PUSH (tmp1); |
1865 | 0 | break; |
1866 | | |
1867 | 0 | case R_RX_OPsub: |
1868 | 0 | RX_STACK_POP (tmp1); |
1869 | 0 | RX_STACK_POP (tmp2); |
1870 | 0 | tmp2 -= tmp1; |
1871 | 0 | RX_STACK_PUSH (tmp2); |
1872 | 0 | break; |
1873 | | |
1874 | 0 | case R_RX_OPmul: |
1875 | 0 | RX_STACK_POP (tmp1); |
1876 | 0 | RX_STACK_POP (tmp2); |
1877 | 0 | tmp1 *= tmp2; |
1878 | 0 | RX_STACK_PUSH (tmp1); |
1879 | 0 | break; |
1880 | | |
1881 | 0 | case R_RX_OPdiv: |
1882 | 0 | RX_STACK_POP (tmp1); |
1883 | 0 | RX_STACK_POP (tmp2); |
1884 | 0 | tmp1 /= tmp2; |
1885 | 0 | RX_STACK_PUSH (tmp1); |
1886 | 0 | break; |
1887 | | |
1888 | 0 | case R_RX_OPshla: |
1889 | 0 | RX_STACK_POP (tmp1); |
1890 | 0 | RX_STACK_POP (tmp2); |
1891 | 0 | tmp1 <<= tmp2; |
1892 | 0 | RX_STACK_PUSH (tmp1); |
1893 | 0 | break; |
1894 | | |
1895 | 0 | case R_RX_OPshra: |
1896 | 0 | RX_STACK_POP (tmp1); |
1897 | 0 | RX_STACK_POP (tmp2); |
1898 | 0 | tmp1 >>= tmp2; |
1899 | 0 | RX_STACK_PUSH (tmp1); |
1900 | 0 | break; |
1901 | | |
1902 | 0 | case R_RX_OPsctsize: |
1903 | 0 | RX_STACK_PUSH (input_section->size); |
1904 | 0 | break; |
1905 | | |
1906 | 0 | case R_RX_OPscttop: |
1907 | 0 | RX_STACK_PUSH (input_section->output_section->vma); |
1908 | 0 | break; |
1909 | | |
1910 | 0 | case R_RX_OPand: |
1911 | 0 | RX_STACK_POP (tmp1); |
1912 | 0 | RX_STACK_POP (tmp2); |
1913 | 0 | tmp1 &= tmp2; |
1914 | 0 | RX_STACK_PUSH (tmp1); |
1915 | 0 | break; |
1916 | | |
1917 | 0 | case R_RX_OPor: |
1918 | 0 | RX_STACK_POP (tmp1); |
1919 | 0 | RX_STACK_POP (tmp2); |
1920 | 0 | tmp1 |= tmp2; |
1921 | 0 | RX_STACK_PUSH (tmp1); |
1922 | 0 | break; |
1923 | | |
1924 | 0 | case R_RX_OPxor: |
1925 | 0 | RX_STACK_POP (tmp1); |
1926 | 0 | RX_STACK_POP (tmp2); |
1927 | 0 | tmp1 ^= tmp2; |
1928 | 0 | RX_STACK_PUSH (tmp1); |
1929 | 0 | break; |
1930 | | |
1931 | 0 | case R_RX_OPnot: |
1932 | 0 | RX_STACK_POP (tmp1); |
1933 | 0 | tmp1 = ~ tmp1; |
1934 | 0 | RX_STACK_PUSH (tmp1); |
1935 | 0 | break; |
1936 | | |
1937 | 0 | case R_RX_OPmod: |
1938 | 0 | RX_STACK_POP (tmp1); |
1939 | 0 | RX_STACK_POP (tmp2); |
1940 | 0 | tmp1 %= tmp2; |
1941 | 0 | RX_STACK_PUSH (tmp1); |
1942 | 0 | break; |
1943 | | |
1944 | 0 | case R_RX_OPromtop: |
1945 | 0 | RX_STACK_PUSH (get_romstart (info, input_bfd, input_section, rel->r_offset)); |
1946 | 0 | break; |
1947 | | |
1948 | 0 | case R_RX_OPramtop: |
1949 | 0 | RX_STACK_PUSH (get_ramstart (info, input_bfd, input_section, rel->r_offset)); |
1950 | 0 | break; |
1951 | | |
1952 | 0 | case R_RX_DIR16UL: |
1953 | 0 | case R_RX_DIR8UL: |
1954 | 0 | case R_RX_ABS16UL: |
1955 | 0 | case R_RX_ABS8UL: |
1956 | 0 | if (rx_stack_top) |
1957 | 0 | RX_STACK_POP (symval); |
1958 | 0 | if (lrel) |
1959 | 0 | *lrel = rel; |
1960 | 0 | *scale = 4; |
1961 | 0 | return symval; |
1962 | | |
1963 | 0 | case R_RX_DIR16UW: |
1964 | 0 | case R_RX_DIR8UW: |
1965 | 0 | case R_RX_ABS16UW: |
1966 | 0 | case R_RX_ABS8UW: |
1967 | 0 | if (rx_stack_top) |
1968 | 0 | RX_STACK_POP (symval); |
1969 | 0 | if (lrel) |
1970 | 0 | *lrel = rel; |
1971 | 0 | *scale = 2; |
1972 | 0 | return symval; |
1973 | | |
1974 | 0 | default: |
1975 | 0 | if (rx_stack_top) |
1976 | 0 | RX_STACK_POP (symval); |
1977 | 0 | if (lrel) |
1978 | 0 | *lrel = rel; |
1979 | 0 | return symval; |
1980 | 0 | } |
1981 | | |
1982 | 0 | rel ++; |
1983 | 0 | } |
1984 | | /* FIXME. */ |
1985 | 0 | (void) r; |
1986 | 0 | } |
1987 | | |
1988 | | static void |
1989 | | move_reloc (Elf_Internal_Rela * irel, Elf_Internal_Rela * srel, int delta) |
1990 | 0 | { |
1991 | 0 | bfd_vma old_offset = srel->r_offset; |
1992 | |
|
1993 | 0 | irel ++; |
1994 | 0 | while (irel <= srel) |
1995 | 0 | { |
1996 | 0 | if (irel->r_offset == old_offset) |
1997 | 0 | irel->r_offset += delta; |
1998 | 0 | irel ++; |
1999 | 0 | } |
2000 | 0 | } |
2001 | | |
2002 | | /* Relax one section. */ |
2003 | | |
2004 | | static bool |
2005 | | elf32_rx_relax_section (bfd *abfd, |
2006 | | asection *sec, |
2007 | | struct bfd_link_info *link_info, |
2008 | | bool *again, |
2009 | | bool allow_pcrel3) |
2010 | 0 | { |
2011 | 0 | Elf_Internal_Shdr *symtab_hdr; |
2012 | 0 | Elf_Internal_Shdr *shndx_hdr; |
2013 | 0 | Elf_Internal_Rela *internal_relocs; |
2014 | 0 | Elf_Internal_Rela *irel; |
2015 | 0 | Elf_Internal_Rela *srel; |
2016 | 0 | Elf_Internal_Rela *irelend; |
2017 | 0 | Elf_Internal_Rela *next_alignment; |
2018 | 0 | Elf_Internal_Rela *prev_alignment; |
2019 | 0 | bfd_byte *contents = NULL; |
2020 | 0 | bfd_byte *free_contents = NULL; |
2021 | 0 | Elf_Internal_Sym *intsyms = NULL; |
2022 | 0 | Elf_Internal_Sym *free_intsyms = NULL; |
2023 | 0 | bfd_byte *shndx_buf = NULL; |
2024 | 0 | bfd_vma pc; |
2025 | 0 | bfd_vma sec_start; |
2026 | 0 | bfd_vma symval = 0; |
2027 | 0 | int pcrel = 0; |
2028 | 0 | int code = 0; |
2029 | 0 | int section_alignment_glue; |
2030 | | /* how much to scale the relocation by - 1, 2, or 4. */ |
2031 | 0 | int scale; |
2032 | | |
2033 | | /* Assume nothing changes. */ |
2034 | 0 | *again = false; |
2035 | | |
2036 | | /* We don't have to do anything for a relocatable link, if |
2037 | | this section does not have relocs, or if this is not a |
2038 | | code section. */ |
2039 | 0 | if (bfd_link_relocatable (link_info) |
2040 | 0 | || sec->reloc_count == 0 |
2041 | 0 | || (sec->flags & SEC_RELOC) == 0 |
2042 | 0 | || (sec->flags & SEC_HAS_CONTENTS) == 0 |
2043 | 0 | || (sec->flags & SEC_CODE) == 0) |
2044 | 0 | return true; |
2045 | | |
2046 | 0 | symtab_hdr = & elf_symtab_hdr (abfd); |
2047 | 0 | if (elf_symtab_shndx_list (abfd)) |
2048 | 0 | shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr; |
2049 | 0 | else |
2050 | 0 | shndx_hdr = NULL; |
2051 | |
|
2052 | 0 | sec_start = sec->output_section->vma + sec->output_offset; |
2053 | | |
2054 | | /* Get the section contents. */ |
2055 | 0 | if (elf_section_data (sec)->this_hdr.contents != NULL) |
2056 | 0 | contents = elf_section_data (sec)->this_hdr.contents; |
2057 | | /* Go get them off disk. */ |
2058 | 0 | else |
2059 | 0 | { |
2060 | 0 | if (! bfd_malloc_and_get_section (abfd, sec, &contents)) |
2061 | 0 | goto error_return; |
2062 | 0 | elf_section_data (sec)->this_hdr.contents = contents; |
2063 | 0 | } |
2064 | | |
2065 | | /* Read this BFD's symbols. */ |
2066 | | /* Get cached copy if it exists. */ |
2067 | 0 | if (symtab_hdr->contents != NULL) |
2068 | 0 | intsyms = (Elf_Internal_Sym *) symtab_hdr->contents; |
2069 | 0 | else |
2070 | 0 | { |
2071 | 0 | intsyms = bfd_elf_get_elf_syms (abfd, symtab_hdr, symtab_hdr->sh_info, 0, NULL, NULL, NULL); |
2072 | 0 | symtab_hdr->contents = (bfd_byte *) intsyms; |
2073 | 0 | } |
2074 | |
|
2075 | 0 | if (shndx_hdr && shndx_hdr->sh_size != 0) |
2076 | 0 | { |
2077 | 0 | size_t amt; |
2078 | |
|
2079 | 0 | if (_bfd_mul_overflow (symtab_hdr->sh_info, |
2080 | 0 | sizeof (Elf_External_Sym_Shndx), &amt)) |
2081 | 0 | { |
2082 | 0 | bfd_set_error (bfd_error_file_too_big); |
2083 | 0 | goto error_return; |
2084 | 0 | } |
2085 | 0 | if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0) |
2086 | 0 | goto error_return; |
2087 | 0 | shndx_buf = _bfd_malloc_and_read (abfd, amt, amt); |
2088 | 0 | if (shndx_buf == NULL) |
2089 | 0 | goto error_return; |
2090 | 0 | shndx_hdr->contents = shndx_buf; |
2091 | 0 | } |
2092 | | |
2093 | | /* Get a copy of the native relocations. */ |
2094 | | /* Note - we ignore the setting of link_info->keep_memory when reading |
2095 | | in these relocs. We have to maintain a permanent copy of the relocs |
2096 | | because we are going to walk over them multiple times, adjusting them |
2097 | | as bytes are deleted from the section, and with this relaxation |
2098 | | function itself being called multiple times on the same section... */ |
2099 | 0 | internal_relocs = _bfd_elf_link_read_relocs |
2100 | 0 | (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, true); |
2101 | 0 | if (internal_relocs == NULL) |
2102 | 0 | goto error_return; |
2103 | | |
2104 | | /* The RL_ relocs must be just before the operand relocs they go |
2105 | | with, so we must sort them to guarantee this. We use bubblesort |
2106 | | instead of qsort so we can guarantee that relocs with the same |
2107 | | address remain in the same relative order. */ |
2108 | 0 | reloc_bubblesort (internal_relocs, sec->reloc_count); |
2109 | | |
2110 | | /* Walk through them looking for relaxing opportunities. */ |
2111 | 0 | irelend = internal_relocs + sec->reloc_count; |
2112 | | |
2113 | | /* This will either be NULL or a pointer to the next alignment |
2114 | | relocation. */ |
2115 | 0 | next_alignment = internal_relocs; |
2116 | | /* This will be the previous alignment, although at first it points |
2117 | | to the first real relocation. */ |
2118 | 0 | prev_alignment = internal_relocs; |
2119 | | |
2120 | | /* We calculate worst case shrinkage caused by alignment directives. |
2121 | | No fool-proof, but better than either ignoring the problem or |
2122 | | doing heavy duty analysis of all the alignment markers in all |
2123 | | input sections. */ |
2124 | 0 | section_alignment_glue = 0; |
2125 | 0 | for (irel = internal_relocs; irel < irelend; irel++) |
2126 | 0 | if (ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX |
2127 | 0 | && irel->r_addend & RX_RELAXA_ALIGN) |
2128 | 0 | { |
2129 | 0 | int this_glue = 1 << (irel->r_addend & RX_RELAXA_ANUM); |
2130 | |
|
2131 | 0 | if (section_alignment_glue < this_glue) |
2132 | 0 | section_alignment_glue = this_glue; |
2133 | 0 | } |
2134 | | /* Worst case is all 0..N alignments, in order, causing 2*N-1 byte |
2135 | | shrinkage. */ |
2136 | 0 | section_alignment_glue *= 2; |
2137 | |
|
2138 | 0 | for (irel = internal_relocs; irel < irelend; irel++) |
2139 | 0 | { |
2140 | 0 | unsigned char *insn; |
2141 | 0 | int nrelocs; |
2142 | | |
2143 | | /* The insns we care about are all marked with one of these. */ |
2144 | 0 | if (ELF32_R_TYPE (irel->r_info) != R_RX_RH_RELAX) |
2145 | 0 | continue; |
2146 | | |
2147 | 0 | if (irel->r_addend & RX_RELAXA_ALIGN |
2148 | 0 | || next_alignment == internal_relocs) |
2149 | 0 | { |
2150 | | /* When we delete bytes, we need to maintain all the alignments |
2151 | | indicated. In addition, we need to be careful about relaxing |
2152 | | jumps across alignment boundaries - these displacements |
2153 | | *grow* when we delete bytes. For now, don't shrink |
2154 | | displacements across an alignment boundary, just in case. |
2155 | | Note that this only affects relocations to the same |
2156 | | section. */ |
2157 | 0 | prev_alignment = next_alignment; |
2158 | 0 | next_alignment += 2; |
2159 | 0 | while (next_alignment < irelend |
2160 | 0 | && (ELF32_R_TYPE (next_alignment->r_info) != R_RX_RH_RELAX |
2161 | 0 | || !(next_alignment->r_addend & RX_RELAXA_ELIGN))) |
2162 | 0 | next_alignment ++; |
2163 | 0 | if (next_alignment >= irelend || next_alignment->r_offset == 0) |
2164 | 0 | next_alignment = NULL; |
2165 | 0 | } |
2166 | | |
2167 | | /* When we hit alignment markers, see if we've shrunk enough |
2168 | | before them to reduce the gap without violating the alignment |
2169 | | requirements. */ |
2170 | 0 | if (irel->r_addend & RX_RELAXA_ALIGN) |
2171 | 0 | { |
2172 | | /* At this point, the next relocation *should* be the ELIGN |
2173 | | end marker. */ |
2174 | 0 | Elf_Internal_Rela *erel = irel + 1; |
2175 | 0 | unsigned int alignment, nbytes; |
2176 | |
|
2177 | 0 | if (ELF32_R_TYPE (erel->r_info) != R_RX_RH_RELAX) |
2178 | 0 | continue; |
2179 | 0 | if (!(erel->r_addend & RX_RELAXA_ELIGN)) |
2180 | 0 | continue; |
2181 | | |
2182 | 0 | alignment = 1 << (irel->r_addend & RX_RELAXA_ANUM); |
2183 | |
|
2184 | 0 | if (erel->r_offset - irel->r_offset < alignment) |
2185 | 0 | continue; |
2186 | | |
2187 | 0 | nbytes = erel->r_offset - irel->r_offset; |
2188 | 0 | nbytes /= alignment; |
2189 | 0 | nbytes *= alignment; |
2190 | |
|
2191 | 0 | elf32_rx_relax_delete_bytes (abfd, sec, erel->r_offset-nbytes, nbytes, next_alignment, |
2192 | 0 | erel->r_offset == sec->size, internal_relocs); |
2193 | 0 | *again = true; |
2194 | |
|
2195 | 0 | continue; |
2196 | 0 | } |
2197 | | |
2198 | 0 | if (irel->r_addend & RX_RELAXA_ELIGN) |
2199 | 0 | continue; |
2200 | | |
2201 | 0 | insn = contents + irel->r_offset; |
2202 | |
|
2203 | 0 | nrelocs = irel->r_addend & RX_RELAXA_RNUM; |
2204 | | |
2205 | | /* At this point, we have an insn that is a candidate for linker |
2206 | | relaxation. There are NRELOCS relocs following that may be |
2207 | | relaxed, although each reloc may be made of more than one |
2208 | | reloc entry (such as gp-rel symbols). */ |
2209 | | |
2210 | | /* Get the value of the symbol referred to by the reloc. Just |
2211 | | in case this is the last reloc in the list, use the RL's |
2212 | | addend to choose between this reloc (no addend) or the next |
2213 | | (yes addend, which means at least one following reloc). */ |
2214 | | |
2215 | | /* srel points to the "current" reloction for this insn - |
2216 | | actually the last reloc for a given operand, which is the one |
2217 | | we need to update. We check the relaxations in the same |
2218 | | order that the relocations happen, so we'll just push it |
2219 | | along as we go. */ |
2220 | 0 | srel = irel; |
2221 | |
|
2222 | 0 | pc = sec->output_section->vma + sec->output_offset |
2223 | 0 | + srel->r_offset; |
2224 | |
|
2225 | 0 | #define GET_RELOC \ |
2226 | 0 | symval = OFFSET_FOR_RELOC (srel, &srel, &scale); \ |
2227 | 0 | pcrel = symval - pc + srel->r_addend; \ |
2228 | 0 | nrelocs --; |
2229 | |
|
2230 | 0 | #define SNIPNR(offset, nbytes) \ |
2231 | 0 | elf32_rx_relax_delete_bytes (abfd, sec, (insn - contents) + offset, nbytes, next_alignment, 0, internal_relocs); |
2232 | 0 | #define SNIP(offset, nbytes, newtype) \ |
2233 | 0 | SNIPNR (offset, nbytes); \ |
2234 | 0 | srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), newtype) |
2235 | | |
2236 | | /* The order of these bit tests must match the order that the |
2237 | | relocs appear in. Since we sorted those by offset, we can |
2238 | | predict them. */ |
2239 | | |
2240 | | /* Note that the numbers in, say, DSP6 are the bit offsets of |
2241 | | the code fields that describe the operand. Bits number 0 for |
2242 | | the MSB of insn[0]. */ |
2243 | | |
2244 | | /* DSP* codes: |
2245 | | 0 00 [reg] |
2246 | | 1 01 dsp:8[reg] |
2247 | | 2 10 dsp:16[reg] |
2248 | | 3 11 reg */ |
2249 | 0 | if (irel->r_addend & RX_RELAXA_DSP6) |
2250 | 0 | { |
2251 | 0 | GET_RELOC; |
2252 | |
|
2253 | 0 | code = insn[0] & 3; |
2254 | 0 | if (code == 2 && symval/scale <= 255) |
2255 | 0 | { |
2256 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2257 | 0 | insn[0] &= 0xfc; |
2258 | 0 | insn[0] |= 0x01; |
2259 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2260 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2261 | 0 | { |
2262 | 0 | SNIP (3, 1, newrel); |
2263 | 0 | *again = true; |
2264 | 0 | } |
2265 | 0 | } |
2266 | | |
2267 | 0 | else if (code == 1 && symval == 0) |
2268 | 0 | { |
2269 | 0 | insn[0] &= 0xfc; |
2270 | 0 | SNIP (2, 1, R_RX_NONE); |
2271 | 0 | *again = true; |
2272 | 0 | } |
2273 | | |
2274 | | /* Special case DSP:5 format: MOV.bwl dsp:5[Rsrc],Rdst. */ |
2275 | 0 | else if (code == 1 && symval/scale <= 31 |
2276 | | /* Decodable bits. */ |
2277 | 0 | && (insn[0] & 0xcc) == 0xcc |
2278 | | /* Width. */ |
2279 | 0 | && (insn[0] & 0x30) != 0x30 |
2280 | | /* Register MSBs. */ |
2281 | 0 | && (insn[1] & 0x88) == 0x00) |
2282 | 0 | { |
2283 | 0 | int newrel = 0; |
2284 | |
|
2285 | 0 | insn[0] = 0x88 | (insn[0] & 0x30); |
2286 | | /* The register fields are in the right place already. */ |
2287 | | |
2288 | | /* We can't relax this new opcode. */ |
2289 | 0 | irel->r_addend = 0; |
2290 | |
|
2291 | 0 | switch ((insn[0] & 0x30) >> 4) |
2292 | 0 | { |
2293 | 0 | case 0: |
2294 | 0 | newrel = R_RX_RH_ABS5p5B; |
2295 | 0 | break; |
2296 | 0 | case 1: |
2297 | 0 | newrel = R_RX_RH_ABS5p5W; |
2298 | 0 | break; |
2299 | 0 | case 2: |
2300 | 0 | newrel = R_RX_RH_ABS5p5L; |
2301 | 0 | break; |
2302 | 0 | } |
2303 | | |
2304 | 0 | move_reloc (irel, srel, -2); |
2305 | 0 | SNIP (2, 1, newrel); |
2306 | 0 | } |
2307 | | |
2308 | | /* Special case DSP:5 format: MOVU.bw dsp:5[Rsrc],Rdst. */ |
2309 | 0 | else if (code == 1 && symval/scale <= 31 |
2310 | | /* Decodable bits. */ |
2311 | 0 | && (insn[0] & 0xf8) == 0x58 |
2312 | | /* Register MSBs. */ |
2313 | 0 | && (insn[1] & 0x88) == 0x00) |
2314 | 0 | { |
2315 | 0 | int newrel = 0; |
2316 | |
|
2317 | 0 | insn[0] = 0xb0 | ((insn[0] & 0x04) << 1); |
2318 | | /* The register fields are in the right place already. */ |
2319 | | |
2320 | | /* We can't relax this new opcode. */ |
2321 | 0 | irel->r_addend = 0; |
2322 | |
|
2323 | 0 | switch ((insn[0] & 0x08) >> 3) |
2324 | 0 | { |
2325 | 0 | case 0: |
2326 | 0 | newrel = R_RX_RH_ABS5p5B; |
2327 | 0 | break; |
2328 | 0 | case 1: |
2329 | 0 | newrel = R_RX_RH_ABS5p5W; |
2330 | 0 | break; |
2331 | 0 | } |
2332 | | |
2333 | 0 | move_reloc (irel, srel, -2); |
2334 | 0 | SNIP (2, 1, newrel); |
2335 | 0 | } |
2336 | 0 | } |
2337 | | |
2338 | | /* A DSP4 operand always follows a DSP6 operand, even if there's |
2339 | | no relocation for it. We have to read the code out of the |
2340 | | opcode to calculate the offset of the operand. */ |
2341 | 0 | if (irel->r_addend & RX_RELAXA_DSP4) |
2342 | 0 | { |
2343 | 0 | int code6, offset = 0; |
2344 | |
|
2345 | 0 | GET_RELOC; |
2346 | |
|
2347 | 0 | code6 = insn[0] & 0x03; |
2348 | 0 | switch (code6) |
2349 | 0 | { |
2350 | 0 | case 0: offset = 2; break; |
2351 | 0 | case 1: offset = 3; break; |
2352 | 0 | case 2: offset = 4; break; |
2353 | 0 | case 3: offset = 2; break; |
2354 | 0 | } |
2355 | | |
2356 | 0 | code = (insn[0] & 0x0c) >> 2; |
2357 | |
|
2358 | 0 | if (code == 2 && symval / scale <= 255) |
2359 | 0 | { |
2360 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2361 | |
|
2362 | 0 | insn[0] &= 0xf3; |
2363 | 0 | insn[0] |= 0x04; |
2364 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2365 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2366 | 0 | { |
2367 | 0 | SNIP (offset+1, 1, newrel); |
2368 | 0 | *again = true; |
2369 | 0 | } |
2370 | 0 | } |
2371 | | |
2372 | 0 | else if (code == 1 && symval == 0) |
2373 | 0 | { |
2374 | 0 | insn[0] &= 0xf3; |
2375 | 0 | SNIP (offset, 1, R_RX_NONE); |
2376 | 0 | *again = true; |
2377 | 0 | } |
2378 | | /* Special case DSP:5 format: MOV.bwl Rsrc,dsp:5[Rdst] */ |
2379 | 0 | else if (code == 1 && symval/scale <= 31 |
2380 | | /* Decodable bits. */ |
2381 | 0 | && (insn[0] & 0xc3) == 0xc3 |
2382 | | /* Width. */ |
2383 | 0 | && (insn[0] & 0x30) != 0x30 |
2384 | | /* Register MSBs. */ |
2385 | 0 | && (insn[1] & 0x88) == 0x00) |
2386 | 0 | { |
2387 | 0 | int newrel = 0; |
2388 | |
|
2389 | 0 | insn[0] = 0x80 | (insn[0] & 0x30); |
2390 | | /* The register fields are in the right place already. */ |
2391 | | |
2392 | | /* We can't relax this new opcode. */ |
2393 | 0 | irel->r_addend = 0; |
2394 | |
|
2395 | 0 | switch ((insn[0] & 0x30) >> 4) |
2396 | 0 | { |
2397 | 0 | case 0: |
2398 | 0 | newrel = R_RX_RH_ABS5p5B; |
2399 | 0 | break; |
2400 | 0 | case 1: |
2401 | 0 | newrel = R_RX_RH_ABS5p5W; |
2402 | 0 | break; |
2403 | 0 | case 2: |
2404 | 0 | newrel = R_RX_RH_ABS5p5L; |
2405 | 0 | break; |
2406 | 0 | } |
2407 | | |
2408 | 0 | move_reloc (irel, srel, -2); |
2409 | 0 | SNIP (2, 1, newrel); |
2410 | 0 | } |
2411 | 0 | } |
2412 | | |
2413 | | /* These always occur alone, but the offset depends on whether |
2414 | | it's a MEMEX opcode (0x06) or not. */ |
2415 | 0 | if (irel->r_addend & RX_RELAXA_DSP14) |
2416 | 0 | { |
2417 | 0 | int offset; |
2418 | 0 | GET_RELOC; |
2419 | |
|
2420 | 0 | if (insn[0] == 0x06) |
2421 | 0 | offset = 3; |
2422 | 0 | else |
2423 | 0 | offset = 4; |
2424 | |
|
2425 | 0 | code = insn[1] & 3; |
2426 | |
|
2427 | 0 | if (code == 2 && symval / scale <= 255) |
2428 | 0 | { |
2429 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2430 | |
|
2431 | 0 | insn[1] &= 0xfc; |
2432 | 0 | insn[1] |= 0x01; |
2433 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2434 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2435 | 0 | { |
2436 | 0 | SNIP (offset, 1, newrel); |
2437 | 0 | *again = true; |
2438 | 0 | } |
2439 | 0 | } |
2440 | 0 | else if (code == 1 && symval == 0) |
2441 | 0 | { |
2442 | 0 | insn[1] &= 0xfc; |
2443 | 0 | SNIP (offset, 1, R_RX_NONE); |
2444 | 0 | *again = true; |
2445 | 0 | } |
2446 | 0 | } |
2447 | | |
2448 | | /* IMM* codes: |
2449 | | 0 00 imm:32 |
2450 | | 1 01 simm:8 |
2451 | | 2 10 simm:16 |
2452 | | 3 11 simm:24. */ |
2453 | | |
2454 | | /* These always occur alone. */ |
2455 | 0 | if (irel->r_addend & RX_RELAXA_IMM6) |
2456 | 0 | { |
2457 | 0 | long ssymval; |
2458 | |
|
2459 | 0 | GET_RELOC; |
2460 | | |
2461 | | /* These relocations sign-extend, so we must do signed compares. */ |
2462 | 0 | ssymval = (long) symval; |
2463 | |
|
2464 | 0 | code = insn[0] & 0x03; |
2465 | |
|
2466 | 0 | if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608) |
2467 | 0 | { |
2468 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2469 | |
|
2470 | 0 | insn[0] &= 0xfc; |
2471 | 0 | insn[0] |= 0x03; |
2472 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2473 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2474 | 0 | { |
2475 | 0 | SNIP (2, 1, newrel); |
2476 | 0 | *again = true; |
2477 | 0 | } |
2478 | 0 | } |
2479 | | |
2480 | 0 | else if (code == 3 && ssymval <= 32767 && ssymval >= -32768) |
2481 | 0 | { |
2482 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2483 | |
|
2484 | 0 | insn[0] &= 0xfc; |
2485 | 0 | insn[0] |= 0x02; |
2486 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2487 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2488 | 0 | { |
2489 | 0 | SNIP (2, 1, newrel); |
2490 | 0 | *again = true; |
2491 | 0 | } |
2492 | 0 | } |
2493 | | |
2494 | | /* Special case UIMM8 format: CMP #uimm8,Rdst. */ |
2495 | 0 | else if (code == 2 && ssymval <= 255 && ssymval >= 16 |
2496 | | /* Decodable bits. */ |
2497 | 0 | && (insn[0] & 0xfc) == 0x74 |
2498 | | /* Decodable bits. */ |
2499 | 0 | && ((insn[1] & 0xf0) == 0x00)) |
2500 | 0 | { |
2501 | 0 | int newrel; |
2502 | |
|
2503 | 0 | insn[0] = 0x75; |
2504 | 0 | insn[1] = 0x50 | (insn[1] & 0x0f); |
2505 | | |
2506 | | /* We can't relax this new opcode. */ |
2507 | 0 | irel->r_addend = 0; |
2508 | |
|
2509 | 0 | if (STACK_REL_P (ELF32_R_TYPE (srel->r_info))) |
2510 | 0 | newrel = R_RX_ABS8U; |
2511 | 0 | else |
2512 | 0 | newrel = R_RX_DIR8U; |
2513 | |
|
2514 | 0 | SNIP (2, 1, newrel); |
2515 | 0 | *again = true; |
2516 | 0 | } |
2517 | | |
2518 | 0 | else if (code == 2 && ssymval <= 127 && ssymval >= -128) |
2519 | 0 | { |
2520 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2521 | |
|
2522 | 0 | insn[0] &= 0xfc; |
2523 | 0 | insn[0] |= 0x01; |
2524 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2525 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2526 | 0 | { |
2527 | 0 | SNIP (2, 1, newrel); |
2528 | 0 | *again = true; |
2529 | 0 | } |
2530 | 0 | } |
2531 | | |
2532 | | /* Special case UIMM4 format: CMP, MUL, AND, OR. */ |
2533 | 0 | else if (code == 1 && ssymval <= 15 && ssymval >= 0 |
2534 | | /* Decodable bits and immediate type. */ |
2535 | 0 | && insn[0] == 0x75 |
2536 | | /* Decodable bits. */ |
2537 | 0 | && (insn[1] & 0xc0) == 0x00) |
2538 | 0 | { |
2539 | 0 | static const int newop[4] = { 1, 3, 4, 5 }; |
2540 | |
|
2541 | 0 | insn[0] = 0x60 | newop[insn[1] >> 4]; |
2542 | | /* The register number doesn't move. */ |
2543 | | |
2544 | | /* We can't relax this new opcode. */ |
2545 | 0 | irel->r_addend = 0; |
2546 | |
|
2547 | 0 | move_reloc (irel, srel, -1); |
2548 | |
|
2549 | 0 | SNIP (2, 1, R_RX_RH_UIMM4p8); |
2550 | 0 | *again = true; |
2551 | 0 | } |
2552 | | |
2553 | | /* Special case UIMM4 format: ADD -> ADD/SUB. */ |
2554 | 0 | else if (code == 1 && ssymval <= 15 && ssymval >= -15 |
2555 | | /* Decodable bits and immediate type. */ |
2556 | 0 | && insn[0] == 0x71 |
2557 | | /* Same register for source and destination. */ |
2558 | 0 | && ((insn[1] >> 4) == (insn[1] & 0x0f))) |
2559 | 0 | { |
2560 | 0 | int newrel; |
2561 | | |
2562 | | /* Note that we can't turn "add $0,Rs" into a NOP |
2563 | | because the flags need to be set right. */ |
2564 | |
|
2565 | 0 | if (ssymval < 0) |
2566 | 0 | { |
2567 | 0 | insn[0] = 0x60; /* Subtract. */ |
2568 | 0 | newrel = R_RX_RH_UNEG4p8; |
2569 | 0 | } |
2570 | 0 | else |
2571 | 0 | { |
2572 | 0 | insn[0] = 0x62; /* Add. */ |
2573 | 0 | newrel = R_RX_RH_UIMM4p8; |
2574 | 0 | } |
2575 | | |
2576 | | /* The register number is in the right place. */ |
2577 | | |
2578 | | /* We can't relax this new opcode. */ |
2579 | 0 | irel->r_addend = 0; |
2580 | |
|
2581 | 0 | move_reloc (irel, srel, -1); |
2582 | |
|
2583 | 0 | SNIP (2, 1, newrel); |
2584 | 0 | *again = true; |
2585 | 0 | } |
2586 | 0 | } |
2587 | | |
2588 | | /* These are either matched with a DSP6 (2-byte base) or an id24 |
2589 | | (3-byte base). */ |
2590 | 0 | if (irel->r_addend & RX_RELAXA_IMM12) |
2591 | 0 | { |
2592 | 0 | int dspcode, offset = 0; |
2593 | 0 | long ssymval; |
2594 | |
|
2595 | 0 | GET_RELOC; |
2596 | |
|
2597 | 0 | if ((insn[0] & 0xfc) == 0xfc) |
2598 | 0 | dspcode = 1; /* Just something with one byte operand. */ |
2599 | 0 | else |
2600 | 0 | dspcode = insn[0] & 3; |
2601 | 0 | switch (dspcode) |
2602 | 0 | { |
2603 | 0 | case 0: offset = 2; break; |
2604 | 0 | case 1: offset = 3; break; |
2605 | 0 | case 2: offset = 4; break; |
2606 | 0 | case 3: offset = 2; break; |
2607 | 0 | } |
2608 | | |
2609 | | /* These relocations sign-extend, so we must do signed compares. */ |
2610 | 0 | ssymval = (long) symval; |
2611 | |
|
2612 | 0 | code = (insn[1] >> 2) & 3; |
2613 | 0 | if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608) |
2614 | 0 | { |
2615 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2616 | |
|
2617 | 0 | insn[1] &= 0xf3; |
2618 | 0 | insn[1] |= 0x0c; |
2619 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2620 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2621 | 0 | { |
2622 | 0 | SNIP (offset, 1, newrel); |
2623 | 0 | *again = true; |
2624 | 0 | } |
2625 | 0 | } |
2626 | | |
2627 | 0 | else if (code == 3 && ssymval <= 32767 && ssymval >= -32768) |
2628 | 0 | { |
2629 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2630 | |
|
2631 | 0 | insn[1] &= 0xf3; |
2632 | 0 | insn[1] |= 0x08; |
2633 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2634 | 0 | if (newrel != ELF32_R_TYPE (srel->r_info)) |
2635 | 0 | { |
2636 | 0 | SNIP (offset, 1, newrel); |
2637 | 0 | *again = true; |
2638 | 0 | } |
2639 | 0 | } |
2640 | | |
2641 | | /* Special case UIMM8 format: MOV #uimm8,Rdst. */ |
2642 | 0 | else if (code == 2 && ssymval <= 255 && ssymval >= 16 |
2643 | | /* Decodable bits. */ |
2644 | 0 | && insn[0] == 0xfb |
2645 | | /* Decodable bits. */ |
2646 | 0 | && ((insn[1] & 0x03) == 0x02)) |
2647 | 0 | { |
2648 | 0 | int newrel; |
2649 | |
|
2650 | 0 | insn[0] = 0x75; |
2651 | 0 | insn[1] = 0x40 | (insn[1] >> 4); |
2652 | | |
2653 | | /* We can't relax this new opcode. */ |
2654 | 0 | irel->r_addend = 0; |
2655 | |
|
2656 | 0 | if (STACK_REL_P (ELF32_R_TYPE (srel->r_info))) |
2657 | 0 | newrel = R_RX_ABS8U; |
2658 | 0 | else |
2659 | 0 | newrel = R_RX_DIR8U; |
2660 | |
|
2661 | 0 | SNIP (2, 1, newrel); |
2662 | 0 | *again = true; |
2663 | 0 | } |
2664 | | |
2665 | 0 | else if (code == 2 && ssymval <= 127 && ssymval >= -128) |
2666 | 0 | { |
2667 | 0 | unsigned int newrel = ELF32_R_TYPE(srel->r_info); |
2668 | |
|
2669 | 0 | insn[1] &= 0xf3; |
2670 | 0 | insn[1] |= 0x04; |
2671 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2672 | 0 | if (newrel != ELF32_R_TYPE(srel->r_info)) |
2673 | 0 | { |
2674 | 0 | SNIP (offset, 1, newrel); |
2675 | 0 | *again = true; |
2676 | 0 | } |
2677 | 0 | } |
2678 | | |
2679 | | /* Special case UIMM4 format: MOV #uimm4,Rdst. */ |
2680 | 0 | else if (code == 1 && ssymval <= 15 && ssymval >= 0 |
2681 | | /* Decodable bits. */ |
2682 | 0 | && insn[0] == 0xfb |
2683 | | /* Decodable bits. */ |
2684 | 0 | && ((insn[1] & 0x03) == 0x02)) |
2685 | 0 | { |
2686 | 0 | insn[0] = 0x66; |
2687 | 0 | insn[1] = insn[1] >> 4; |
2688 | | |
2689 | | /* We can't relax this new opcode. */ |
2690 | 0 | irel->r_addend = 0; |
2691 | |
|
2692 | 0 | move_reloc (irel, srel, -1); |
2693 | |
|
2694 | 0 | SNIP (2, 1, R_RX_RH_UIMM4p8); |
2695 | 0 | *again = true; |
2696 | 0 | } |
2697 | 0 | } |
2698 | | |
2699 | 0 | if (irel->r_addend & RX_RELAXA_BRA) |
2700 | 0 | { |
2701 | 0 | unsigned int newrel = ELF32_R_TYPE (srel->r_info); |
2702 | 0 | int max_pcrel3 = 4; |
2703 | 0 | int alignment_glue = 0; |
2704 | |
|
2705 | 0 | GET_RELOC; |
2706 | | |
2707 | | /* Branches over alignment chunks are problematic, as |
2708 | | deleting bytes here makes the branch *further* away. We |
2709 | | can be agressive with branches within this alignment |
2710 | | block, but not branches outside it. */ |
2711 | 0 | if ((prev_alignment == NULL |
2712 | 0 | || symval < (bfd_vma)(sec_start + prev_alignment->r_offset)) |
2713 | 0 | && (next_alignment == NULL |
2714 | 0 | || symval > (bfd_vma)(sec_start + next_alignment->r_offset))) |
2715 | 0 | alignment_glue = section_alignment_glue; |
2716 | |
|
2717 | 0 | if (ELF32_R_TYPE(srel[1].r_info) == R_RX_RH_RELAX |
2718 | 0 | && srel[1].r_addend & RX_RELAXA_BRA |
2719 | 0 | && srel[1].r_offset < irel->r_offset + pcrel) |
2720 | 0 | max_pcrel3 ++; |
2721 | |
|
2722 | 0 | newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info)); |
2723 | | |
2724 | | /* The values we compare PCREL with are not what you'd |
2725 | | expect; they're off by a little to compensate for (1) |
2726 | | where the reloc is relative to the insn, and (2) how much |
2727 | | the insn is going to change when we relax it. */ |
2728 | | |
2729 | | /* These we have to decode. */ |
2730 | 0 | switch (insn[0]) |
2731 | 0 | { |
2732 | 0 | case 0x04: /* BRA pcdsp:24 */ |
2733 | 0 | if (-32768 + alignment_glue <= pcrel |
2734 | 0 | && pcrel <= 32765 - alignment_glue) |
2735 | 0 | { |
2736 | 0 | insn[0] = 0x38; |
2737 | 0 | SNIP (3, 1, newrel); |
2738 | 0 | *again = true; |
2739 | 0 | } |
2740 | 0 | break; |
2741 | | |
2742 | 0 | case 0x38: /* BRA pcdsp:16 */ |
2743 | 0 | if (-128 + alignment_glue <= pcrel |
2744 | 0 | && pcrel <= 127 - alignment_glue) |
2745 | 0 | { |
2746 | 0 | insn[0] = 0x2e; |
2747 | 0 | SNIP (2, 1, newrel); |
2748 | 0 | *again = true; |
2749 | 0 | } |
2750 | 0 | break; |
2751 | | |
2752 | 0 | case 0x2e: /* BRA pcdsp:8 */ |
2753 | | /* Note that there's a risk here of shortening things so |
2754 | | much that we no longer fit this reloc; it *should* |
2755 | | only happen when you branch across a branch, and that |
2756 | | branch also devolves into BRA.S. "Real" code should |
2757 | | be OK. */ |
2758 | 0 | if (max_pcrel3 + alignment_glue <= pcrel |
2759 | 0 | && pcrel <= 10 - alignment_glue |
2760 | 0 | && allow_pcrel3) |
2761 | 0 | { |
2762 | 0 | insn[0] = 0x08; |
2763 | 0 | SNIP (1, 1, newrel); |
2764 | 0 | move_reloc (irel, srel, -1); |
2765 | 0 | *again = true; |
2766 | 0 | } |
2767 | 0 | break; |
2768 | | |
2769 | 0 | case 0x05: /* BSR pcdsp:24 */ |
2770 | 0 | if (-32768 + alignment_glue <= pcrel |
2771 | 0 | && pcrel <= 32765 - alignment_glue) |
2772 | 0 | { |
2773 | 0 | insn[0] = 0x39; |
2774 | 0 | SNIP (1, 1, newrel); |
2775 | 0 | *again = true; |
2776 | 0 | } |
2777 | 0 | break; |
2778 | | |
2779 | 0 | case 0x3a: /* BEQ.W pcdsp:16 */ |
2780 | 0 | case 0x3b: /* BNE.W pcdsp:16 */ |
2781 | 0 | if (-128 + alignment_glue <= pcrel |
2782 | 0 | && pcrel <= 127 - alignment_glue) |
2783 | 0 | { |
2784 | 0 | insn[0] = 0x20 | (insn[0] & 1); |
2785 | 0 | SNIP (1, 1, newrel); |
2786 | 0 | *again = true; |
2787 | 0 | } |
2788 | 0 | break; |
2789 | | |
2790 | 0 | case 0x20: /* BEQ.B pcdsp:8 */ |
2791 | 0 | case 0x21: /* BNE.B pcdsp:8 */ |
2792 | 0 | if (max_pcrel3 + alignment_glue <= pcrel |
2793 | 0 | && pcrel - alignment_glue <= 10 |
2794 | 0 | && allow_pcrel3) |
2795 | 0 | { |
2796 | 0 | insn[0] = 0x10 | ((insn[0] & 1) << 3); |
2797 | 0 | SNIP (1, 1, newrel); |
2798 | 0 | move_reloc (irel, srel, -1); |
2799 | 0 | *again = true; |
2800 | 0 | } |
2801 | 0 | break; |
2802 | | |
2803 | 0 | case 0x16: /* synthetic BNE dsp24 */ |
2804 | 0 | case 0x1e: /* synthetic BEQ dsp24 */ |
2805 | 0 | if (-32767 + alignment_glue <= pcrel |
2806 | 0 | && pcrel <= 32766 - alignment_glue |
2807 | 0 | && insn[1] == 0x04) |
2808 | 0 | { |
2809 | 0 | if (insn[0] == 0x16) |
2810 | 0 | insn[0] = 0x3b; |
2811 | 0 | else |
2812 | 0 | insn[0] = 0x3a; |
2813 | | /* We snip out the bytes at the end else the reloc |
2814 | | will get moved too, and too much. */ |
2815 | 0 | SNIP (3, 2, newrel); |
2816 | 0 | move_reloc (irel, srel, -1); |
2817 | 0 | *again = true; |
2818 | 0 | } |
2819 | 0 | break; |
2820 | 0 | } |
2821 | | |
2822 | | /* Special case - synthetic conditional branches, pcrel24. |
2823 | | Note that EQ and NE have been handled above. */ |
2824 | 0 | if ((insn[0] & 0xf0) == 0x20 |
2825 | 0 | && insn[1] == 0x06 |
2826 | 0 | && insn[2] == 0x04 |
2827 | 0 | && srel->r_offset != irel->r_offset + 1 |
2828 | 0 | && -32767 + alignment_glue <= pcrel |
2829 | 0 | && pcrel <= 32766 - alignment_glue) |
2830 | 0 | { |
2831 | 0 | insn[1] = 0x05; |
2832 | 0 | insn[2] = 0x38; |
2833 | 0 | SNIP (5, 1, newrel); |
2834 | 0 | *again = true; |
2835 | 0 | } |
2836 | | |
2837 | | /* Special case - synthetic conditional branches, pcrel16 */ |
2838 | 0 | if ((insn[0] & 0xf0) == 0x20 |
2839 | 0 | && insn[1] == 0x05 |
2840 | 0 | && insn[2] == 0x38 |
2841 | 0 | && srel->r_offset != irel->r_offset + 1 |
2842 | 0 | && -127 + alignment_glue <= pcrel |
2843 | 0 | && pcrel <= 126 - alignment_glue) |
2844 | 0 | { |
2845 | 0 | int cond = (insn[0] & 0x0f) ^ 0x01; |
2846 | |
|
2847 | 0 | insn[0] = 0x20 | cond; |
2848 | | /* By moving the reloc first, we avoid having |
2849 | | delete_bytes move it also. */ |
2850 | 0 | move_reloc (irel, srel, -2); |
2851 | 0 | SNIP (2, 3, newrel); |
2852 | 0 | *again = true; |
2853 | 0 | } |
2854 | 0 | } |
2855 | | |
2856 | 0 | BFD_ASSERT (nrelocs == 0); |
2857 | | |
2858 | | /* Special case - check MOV.bwl #IMM, dsp[reg] and see if we can |
2859 | | use MOV.bwl #uimm:8, dsp:5[r7] format. This is tricky |
2860 | | because it may have one or two relocations. */ |
2861 | 0 | if ((insn[0] & 0xfc) == 0xf8 |
2862 | 0 | && (insn[1] & 0x80) == 0x00 |
2863 | 0 | && (insn[0] & 0x03) != 0x03) |
2864 | 0 | { |
2865 | 0 | int dcode, icode, reg, ioff, dscale, ilen; |
2866 | 0 | bfd_vma disp_val = 0; |
2867 | 0 | long imm_val = 0; |
2868 | 0 | Elf_Internal_Rela * disp_rel = 0; |
2869 | 0 | Elf_Internal_Rela * imm_rel = 0; |
2870 | | |
2871 | | /* Reset this. */ |
2872 | 0 | srel = irel; |
2873 | |
|
2874 | 0 | dcode = insn[0] & 0x03; |
2875 | 0 | icode = (insn[1] >> 2) & 0x03; |
2876 | 0 | reg = (insn[1] >> 4) & 0x0f; |
2877 | |
|
2878 | 0 | ioff = dcode == 1 ? 3 : dcode == 2 ? 4 : 2; |
2879 | | |
2880 | | /* Figure out what the dispacement is. */ |
2881 | 0 | if (dcode == 1 || dcode == 2) |
2882 | 0 | { |
2883 | | /* There's a displacement. See if there's a reloc for it. */ |
2884 | 0 | if (srel[1].r_offset == irel->r_offset + 2) |
2885 | 0 | { |
2886 | 0 | GET_RELOC; |
2887 | 0 | disp_val = symval; |
2888 | 0 | disp_rel = srel; |
2889 | 0 | } |
2890 | 0 | else |
2891 | 0 | { |
2892 | 0 | if (dcode == 1) |
2893 | 0 | disp_val = insn[2]; |
2894 | 0 | else |
2895 | 0 | { |
2896 | | #if RX_OPCODE_BIG_ENDIAN |
2897 | | disp_val = insn[2] * 256 + insn[3]; |
2898 | | #else |
2899 | 0 | disp_val = insn[2] + insn[3] * 256; |
2900 | 0 | #endif |
2901 | 0 | } |
2902 | 0 | switch (insn[1] & 3) |
2903 | 0 | { |
2904 | 0 | case 1: |
2905 | 0 | disp_val *= 2; |
2906 | 0 | scale = 2; |
2907 | 0 | break; |
2908 | 0 | case 2: |
2909 | 0 | disp_val *= 4; |
2910 | 0 | scale = 4; |
2911 | 0 | break; |
2912 | 0 | } |
2913 | 0 | } |
2914 | 0 | } |
2915 | | |
2916 | 0 | dscale = scale; |
2917 | | |
2918 | | /* Figure out what the immediate is. */ |
2919 | 0 | if (srel[1].r_offset == irel->r_offset + ioff) |
2920 | 0 | { |
2921 | 0 | GET_RELOC; |
2922 | 0 | imm_val = (long) symval; |
2923 | 0 | imm_rel = srel; |
2924 | 0 | } |
2925 | 0 | else |
2926 | 0 | { |
2927 | 0 | unsigned char * ip = insn + ioff; |
2928 | |
|
2929 | 0 | switch (icode) |
2930 | 0 | { |
2931 | 0 | case 1: |
2932 | | /* For byte writes, we don't sign extend. Makes the math easier later. */ |
2933 | 0 | if (scale == 1) |
2934 | 0 | imm_val = ip[0]; |
2935 | 0 | else |
2936 | 0 | imm_val = (char) ip[0]; |
2937 | 0 | break; |
2938 | 0 | case 2: |
2939 | | #if RX_OPCODE_BIG_ENDIAN |
2940 | | imm_val = ((char) ip[0] << 8) | ip[1]; |
2941 | | #else |
2942 | 0 | imm_val = ((char) ip[1] << 8) | ip[0]; |
2943 | 0 | #endif |
2944 | 0 | break; |
2945 | 0 | case 3: |
2946 | | #if RX_OPCODE_BIG_ENDIAN |
2947 | | imm_val = ((char) ip[0] << 16) | (ip[1] << 8) | ip[2]; |
2948 | | #else |
2949 | 0 | imm_val = ((char) ip[2] << 16) | (ip[1] << 8) | ip[0]; |
2950 | 0 | #endif |
2951 | 0 | break; |
2952 | 0 | case 0: |
2953 | | #if RX_OPCODE_BIG_ENDIAN |
2954 | | imm_val = ((unsigned) ip[0] << 24) | (ip[1] << 16) | (ip[2] << 8) | ip[3]; |
2955 | | #else |
2956 | 0 | imm_val = ((unsigned) ip[3] << 24) | (ip[2] << 16) | (ip[1] << 8) | ip[0]; |
2957 | 0 | #endif |
2958 | 0 | break; |
2959 | 0 | } |
2960 | 0 | } |
2961 | | |
2962 | 0 | ilen = 2; |
2963 | |
|
2964 | 0 | switch (dcode) |
2965 | 0 | { |
2966 | 0 | case 1: |
2967 | 0 | ilen += 1; |
2968 | 0 | break; |
2969 | 0 | case 2: |
2970 | 0 | ilen += 2; |
2971 | 0 | break; |
2972 | 0 | } |
2973 | | |
2974 | 0 | switch (icode) |
2975 | 0 | { |
2976 | 0 | case 1: |
2977 | 0 | ilen += 1; |
2978 | 0 | break; |
2979 | 0 | case 2: |
2980 | 0 | ilen += 2; |
2981 | 0 | break; |
2982 | 0 | case 3: |
2983 | 0 | ilen += 3; |
2984 | 0 | break; |
2985 | 0 | case 4: |
2986 | 0 | ilen += 4; |
2987 | 0 | break; |
2988 | 0 | } |
2989 | | |
2990 | | /* The shortcut happens when the immediate is 0..255, |
2991 | | register r0 to r7, and displacement (scaled) 0..31. */ |
2992 | | |
2993 | 0 | if (0 <= imm_val && imm_val <= 255 |
2994 | 0 | && 0 <= reg && reg <= 7 |
2995 | 0 | && disp_val / dscale <= 31) |
2996 | 0 | { |
2997 | 0 | insn[0] = 0x3c | (insn[1] & 0x03); |
2998 | 0 | insn[1] = (((disp_val / dscale) << 3) & 0x80) | (reg << 4) | ((disp_val/dscale) & 0x0f); |
2999 | 0 | insn[2] = imm_val; |
3000 | |
|
3001 | 0 | if (disp_rel) |
3002 | 0 | { |
3003 | 0 | int newrel = R_RX_NONE; |
3004 | |
|
3005 | 0 | switch (dscale) |
3006 | 0 | { |
3007 | 0 | case 1: |
3008 | 0 | newrel = R_RX_RH_ABS5p8B; |
3009 | 0 | break; |
3010 | 0 | case 2: |
3011 | 0 | newrel = R_RX_RH_ABS5p8W; |
3012 | 0 | break; |
3013 | 0 | case 4: |
3014 | 0 | newrel = R_RX_RH_ABS5p8L; |
3015 | 0 | break; |
3016 | 0 | } |
3017 | 0 | disp_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (disp_rel->r_info), newrel); |
3018 | 0 | move_reloc (irel, disp_rel, -1); |
3019 | 0 | } |
3020 | 0 | if (imm_rel) |
3021 | 0 | { |
3022 | 0 | imm_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (imm_rel->r_info), R_RX_DIR8U); |
3023 | 0 | move_reloc (disp_rel ? disp_rel : irel, |
3024 | 0 | imm_rel, |
3025 | 0 | irel->r_offset - imm_rel->r_offset + 2); |
3026 | 0 | } |
3027 | |
|
3028 | 0 | SNIPNR (3, ilen - 3); |
3029 | 0 | *again = true; |
3030 | | |
3031 | | /* We can't relax this new opcode. */ |
3032 | 0 | irel->r_addend = 0; |
3033 | 0 | } |
3034 | 0 | } |
3035 | 0 | } |
3036 | | |
3037 | | /* We can't reliably relax branches to DIR3U_PCREL unless we know |
3038 | | whatever they're branching over won't shrink any more. If we're |
3039 | | basically done here, do one more pass just for branches - but |
3040 | | don't request a pass after that one! */ |
3041 | 0 | if (!*again && !allow_pcrel3) |
3042 | 0 | { |
3043 | 0 | bool ignored; |
3044 | |
|
3045 | 0 | elf32_rx_relax_section (abfd, sec, link_info, &ignored, true); |
3046 | 0 | } |
3047 | |
|
3048 | 0 | return true; |
3049 | | |
3050 | 0 | error_return: |
3051 | 0 | free (free_contents); |
3052 | |
|
3053 | 0 | if (shndx_buf != NULL) |
3054 | 0 | { |
3055 | 0 | shndx_hdr->contents = NULL; |
3056 | 0 | free (shndx_buf); |
3057 | 0 | } |
3058 | |
|
3059 | 0 | free (free_intsyms); |
3060 | |
|
3061 | 0 | return false; |
3062 | 0 | } |
3063 | | |
3064 | | static bool |
3065 | | elf32_rx_relax_section_wrapper (bfd *abfd, |
3066 | | asection *sec, |
3067 | | struct bfd_link_info *link_info, |
3068 | | bool *again) |
3069 | 0 | { |
3070 | 0 | return elf32_rx_relax_section (abfd, sec, link_info, again, false); |
3071 | 0 | } |
3072 | | |
3073 | | /* Function to set the ELF flag bits. */ |
3074 | | |
3075 | | static bool |
3076 | | rx_elf_set_private_flags (bfd * abfd, flagword flags) |
3077 | 0 | { |
3078 | 0 | elf_elfheader (abfd)->e_flags = flags; |
3079 | 0 | elf_flags_init (abfd) = true; |
3080 | 0 | return true; |
3081 | 0 | } |
3082 | | |
3083 | | static bool no_warn_mismatch = false; |
3084 | | static bool ignore_lma = true; |
3085 | | |
3086 | | void bfd_elf32_rx_set_target_flags (bool, bool); |
3087 | | |
3088 | | void |
3089 | | bfd_elf32_rx_set_target_flags (bool user_no_warn_mismatch, |
3090 | | bool user_ignore_lma) |
3091 | 0 | { |
3092 | 0 | no_warn_mismatch = user_no_warn_mismatch; |
3093 | 0 | ignore_lma = user_ignore_lma; |
3094 | 0 | } |
3095 | | |
3096 | | /* Converts FLAGS into a descriptive string. |
3097 | | Returns a static pointer. */ |
3098 | | |
3099 | | static const char * |
3100 | | describe_flags (flagword flags, char *buf) |
3101 | 2.45k | { |
3102 | 2.45k | buf[0] = 0; |
3103 | | |
3104 | 2.45k | if (flags & E_FLAG_RX_64BIT_DOUBLES) |
3105 | 27 | strcat (buf, "64-bit doubles"); |
3106 | 2.42k | else |
3107 | 2.42k | strcat (buf, "32-bit doubles"); |
3108 | | |
3109 | 2.45k | if (flags & E_FLAG_RX_DSP) |
3110 | 57 | strcat (buf, ", dsp"); |
3111 | 2.39k | else |
3112 | 2.39k | strcat (buf, ", no dsp"); |
3113 | | |
3114 | 2.45k | if (flags & E_FLAG_RX_PID) |
3115 | 36 | strcat (buf, ", pid"); |
3116 | 2.42k | else |
3117 | 2.42k | strcat (buf, ", no pid"); |
3118 | | |
3119 | 2.45k | if (flags & E_FLAG_RX_ABI) |
3120 | 65 | strcat (buf, ", RX ABI"); |
3121 | 2.39k | else |
3122 | 2.39k | strcat (buf, ", GCC ABI"); |
3123 | | |
3124 | 2.45k | if (flags & E_FLAG_RX_SINSNS_SET) |
3125 | 38 | strcat (buf, flags & E_FLAG_RX_SINSNS_YES ? ", uses String instructions" : ", bans String instructions"); |
3126 | | |
3127 | 2.45k | return buf; |
3128 | 2.45k | } |
3129 | | |
3130 | | /* Merge backend specific data from an object file to the output |
3131 | | object file when linking. */ |
3132 | | |
3133 | | static bool |
3134 | | rx_elf_merge_private_bfd_data (bfd * ibfd, struct bfd_link_info *info) |
3135 | 0 | { |
3136 | 0 | bfd *obfd = info->output_bfd; |
3137 | 0 | flagword old_flags; |
3138 | 0 | flagword new_flags; |
3139 | 0 | bool error = false; |
3140 | |
|
3141 | 0 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
3142 | 0 | return true; |
3143 | | |
3144 | 0 | new_flags = elf_elfheader (ibfd)->e_flags; |
3145 | 0 | old_flags = elf_elfheader (obfd)->e_flags; |
3146 | |
|
3147 | 0 | if (!elf_flags_init (obfd)) |
3148 | 0 | { |
3149 | | /* First call, no flags set. */ |
3150 | 0 | elf_flags_init (obfd) = true; |
3151 | 0 | elf_elfheader (obfd)->e_flags = new_flags; |
3152 | 0 | } |
3153 | 0 | else if (old_flags != new_flags) |
3154 | 0 | { |
3155 | 0 | flagword known_flags; |
3156 | |
|
3157 | 0 | if (old_flags & E_FLAG_RX_SINSNS_SET) |
3158 | 0 | { |
3159 | 0 | if ((new_flags & E_FLAG_RX_SINSNS_SET) == 0) |
3160 | 0 | { |
3161 | 0 | new_flags &= ~ E_FLAG_RX_SINSNS_MASK; |
3162 | 0 | new_flags |= (old_flags & E_FLAG_RX_SINSNS_MASK); |
3163 | 0 | } |
3164 | 0 | } |
3165 | 0 | else if (new_flags & E_FLAG_RX_SINSNS_SET) |
3166 | 0 | { |
3167 | 0 | old_flags &= ~ E_FLAG_RX_SINSNS_MASK; |
3168 | 0 | old_flags |= (new_flags & E_FLAG_RX_SINSNS_MASK); |
3169 | 0 | } |
3170 | |
|
3171 | 0 | known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES |
3172 | 0 | | E_FLAG_RX_DSP | E_FLAG_RX_PID | E_FLAG_RX_SINSNS_MASK; |
3173 | |
|
3174 | 0 | if ((old_flags ^ new_flags) & known_flags) |
3175 | 0 | { |
3176 | | /* Only complain if flag bits we care about do not match. |
3177 | | Other bits may be set, since older binaries did use some |
3178 | | deprecated flags. */ |
3179 | 0 | if (no_warn_mismatch) |
3180 | 0 | { |
3181 | 0 | elf_elfheader (obfd)->e_flags = (new_flags | old_flags) & known_flags; |
3182 | 0 | } |
3183 | 0 | else |
3184 | 0 | { |
3185 | 0 | char buf[128]; |
3186 | |
|
3187 | 0 | _bfd_error_handler (_("there is a conflict merging the" |
3188 | 0 | " ELF header flags from %pB"), |
3189 | 0 | ibfd); |
3190 | 0 | _bfd_error_handler (_(" the input file's flags: %s"), |
3191 | 0 | describe_flags (new_flags, buf)); |
3192 | 0 | _bfd_error_handler (_(" the output file's flags: %s"), |
3193 | 0 | describe_flags (old_flags, buf)); |
3194 | 0 | error = true; |
3195 | 0 | } |
3196 | 0 | } |
3197 | 0 | else |
3198 | 0 | elf_elfheader (obfd)->e_flags = new_flags & known_flags; |
3199 | 0 | } |
3200 | |
|
3201 | 0 | if (error) |
3202 | 0 | bfd_set_error (bfd_error_bad_value); |
3203 | |
|
3204 | 0 | return !error; |
3205 | 0 | } |
3206 | | |
3207 | | static bool |
3208 | | rx_elf_print_private_bfd_data (bfd * abfd, void * ptr) |
3209 | 2.45k | { |
3210 | 2.45k | FILE * file = (FILE *) ptr; |
3211 | 2.45k | flagword flags; |
3212 | 2.45k | char buf[128]; |
3213 | | |
3214 | 2.45k | BFD_ASSERT (abfd != NULL && ptr != NULL); |
3215 | | |
3216 | | /* Print normal ELF private data. */ |
3217 | 2.45k | _bfd_elf_print_private_bfd_data (abfd, ptr); |
3218 | | |
3219 | 2.45k | flags = elf_elfheader (abfd)->e_flags; |
3220 | 2.45k | fprintf (file, _("private flags = 0x%lx:"), (long) flags); |
3221 | | |
3222 | 2.45k | fprintf (file, "%s", describe_flags (flags, buf)); |
3223 | 2.45k | return true; |
3224 | 2.45k | } |
3225 | | |
3226 | | /* Return the MACH for an e_flags value. */ |
3227 | | |
3228 | | static int |
3229 | | elf32_rx_machine (bfd * abfd ATTRIBUTE_UNUSED) |
3230 | 6.14k | { |
3231 | | #if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_... |
3232 | | Need to sort out how these flag bits are used. |
3233 | | For now we assume that the flags are OK. */ |
3234 | | if ((elf_elfheader (abfd)->e_flags & EF_RX_CPU_MASK) == EF_RX_CPU_RX) |
3235 | | #endif |
3236 | 6.14k | if ((elf_elfheader (abfd)->e_flags & E_FLAG_RX_V2)) |
3237 | 5.01k | return bfd_mach_rx_v2; |
3238 | 1.13k | else if ((elf_elfheader (abfd)->e_flags & E_FLAG_RX_V3)) |
3239 | 543 | return bfd_mach_rx_v3; |
3240 | 594 | else |
3241 | 594 | return bfd_mach_rx; |
3242 | | |
3243 | 0 | return 0; |
3244 | 6.14k | } |
3245 | | |
3246 | | static bool |
3247 | | rx_elf_object_p (bfd * abfd) |
3248 | 8.62k | { |
3249 | 8.62k | int i; |
3250 | 8.62k | unsigned int u; |
3251 | 8.62k | Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr; |
3252 | 8.62k | Elf_Internal_Ehdr *ehdr = elf_elfheader (abfd); |
3253 | 8.62k | int nphdrs = ehdr->e_phnum; |
3254 | 8.62k | sec_ptr bsec; |
3255 | 8.62k | static int saw_be = false; |
3256 | 8.62k | bfd_vma end_phdroff; |
3257 | | |
3258 | | /* We never want to automatically choose the non-swapping big-endian |
3259 | | target. The user can only get that explicitly, such as with -I |
3260 | | and objcopy. */ |
3261 | 8.62k | if (abfd->xvec == &rx_elf32_be_ns_vec |
3262 | 2.48k | && abfd->target_defaulted) |
3263 | 2.46k | return false; |
3264 | | |
3265 | | /* BFD->target_defaulted is not set to TRUE when a target is chosen |
3266 | | as a fallback, so we check for "scanning" to know when to stop |
3267 | | using the non-swapping target. */ |
3268 | 6.16k | if (abfd->xvec == &rx_elf32_be_ns_vec |
3269 | 18 | && saw_be) |
3270 | 18 | return false; |
3271 | 6.14k | if (abfd->xvec == &rx_elf32_be_vec) |
3272 | 4.95k | saw_be = true; |
3273 | | |
3274 | 6.14k | bfd_default_set_arch_mach (abfd, bfd_arch_rx, |
3275 | 6.14k | elf32_rx_machine (abfd)); |
3276 | | |
3277 | | /* For each PHDR in the object, we must find some section that |
3278 | | corresponds (based on matching file offsets) and use its VMA |
3279 | | information to reconstruct the p_vaddr field we clobbered when we |
3280 | | wrote it out. */ |
3281 | | /* If PT_LOAD headers include the ELF file header or program headers |
3282 | | then the PT_LOAD header does not start with some section contents. |
3283 | | Making adjustments based on the difference between sh_offset and |
3284 | | p_offset is nonsense in such cases. Exclude them. Note that |
3285 | | since standard linker scripts for RX do not use SIZEOF_HEADERS, |
3286 | | the linker won't normally create PT_LOAD segments covering the |
3287 | | headers so this is mainly for passing the ld testsuite. |
3288 | | FIXME. Why are we looking at non-PT_LOAD headers here? */ |
3289 | 6.14k | end_phdroff = ehdr->e_ehsize; |
3290 | 6.14k | if (ehdr->e_phoff != 0) |
3291 | 5.42k | end_phdroff = ehdr->e_phoff + nphdrs * ehdr->e_phentsize; |
3292 | 123k | for (i=0; i<nphdrs; i++) |
3293 | 116k | { |
3294 | 227k | for (u=0; u<elf_tdata(abfd)->num_elf_sections; u++) |
3295 | 116k | { |
3296 | 116k | Elf_Internal_Shdr *sec = elf_tdata(abfd)->elf_sect_ptr[u]; |
3297 | | |
3298 | 116k | if (phdr[i].p_filesz |
3299 | 84.4k | && phdr[i].p_offset >= end_phdroff |
3300 | 56.1k | && phdr[i].p_offset <= (bfd_vma) sec->sh_offset |
3301 | 23.5k | && sec->sh_size > 0 |
3302 | 19.9k | && sec->sh_type != SHT_NOBITS |
3303 | 17.8k | && (bfd_vma)sec->sh_offset <= phdr[i].p_offset + (phdr[i].p_filesz - 1)) |
3304 | 6.24k | { |
3305 | | /* Found one! The difference between the two addresses, |
3306 | | plus the difference between the two file offsets, is |
3307 | | enough information to reconstruct the lma. */ |
3308 | | |
3309 | | /* Example where they aren't: |
3310 | | PHDR[1] = lma fffc0100 offset 00002010 size 00000100 |
3311 | | SEC[6] = vma 00000050 offset 00002050 size 00000040 |
3312 | | |
3313 | | The correct LMA for the section is fffc0140 + (2050-2010). |
3314 | | */ |
3315 | | |
3316 | 6.24k | phdr[i].p_vaddr = sec->sh_addr + (sec->sh_offset - phdr[i].p_offset); |
3317 | 6.24k | break; |
3318 | 6.24k | } |
3319 | 116k | } |
3320 | | |
3321 | | /* We must update the bfd sections as well, so we don't stop |
3322 | | with one match. */ |
3323 | 116k | bsec = abfd->sections; |
3324 | 166k | while (bsec) |
3325 | 49.2k | { |
3326 | 49.2k | if (phdr[i].p_filesz |
3327 | 36.6k | && phdr[i].p_vaddr <= bsec->vma |
3328 | 20.6k | && bsec->vma <= phdr[i].p_vaddr + (phdr[i].p_filesz - 1)) |
3329 | 6.62k | { |
3330 | 6.62k | bsec->lma = phdr[i].p_paddr + (bsec->vma - phdr[i].p_vaddr); |
3331 | 6.62k | } |
3332 | 49.2k | bsec = bsec->next; |
3333 | 49.2k | } |
3334 | 116k | } |
3335 | | |
3336 | 6.14k | return true; |
3337 | 6.16k | } |
3338 | | |
3339 | | static bool |
3340 | | rx_linux_object_p (bfd * abfd) |
3341 | 0 | { |
3342 | 0 | bfd_default_set_arch_mach (abfd, bfd_arch_rx, elf32_rx_machine (abfd)); |
3343 | 0 | return true; |
3344 | 0 | } |
3345 | | |
3346 | | |
3347 | | #ifdef DEBUG |
3348 | | void |
3349 | | rx_dump_symtab (bfd * abfd, void * internal_syms, void * external_syms) |
3350 | | { |
3351 | | size_t locsymcount; |
3352 | | Elf_Internal_Sym * isymbuf; |
3353 | | Elf_Internal_Sym * isymend; |
3354 | | Elf_Internal_Sym * isym; |
3355 | | Elf_Internal_Shdr * symtab_hdr; |
3356 | | char * st_info_str; |
3357 | | char * st_info_stb_str; |
3358 | | char * st_other_str; |
3359 | | char * st_shndx_str; |
3360 | | |
3361 | | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
3362 | | locsymcount = symtab_hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym; |
3363 | | if (!internal_syms) |
3364 | | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, |
3365 | | symtab_hdr->sh_info, 0, |
3366 | | internal_syms, external_syms, NULL); |
3367 | | else |
3368 | | isymbuf = internal_syms; |
3369 | | isymend = isymbuf + locsymcount; |
3370 | | |
3371 | | for (isym = isymbuf ; isym < isymend ; isym++) |
3372 | | { |
3373 | | switch (ELF_ST_TYPE (isym->st_info)) |
3374 | | { |
3375 | | case STT_FUNC: st_info_str = "STT_FUNC"; break; |
3376 | | case STT_SECTION: st_info_str = "STT_SECTION"; break; |
3377 | | case STT_FILE: st_info_str = "STT_FILE"; break; |
3378 | | case STT_OBJECT: st_info_str = "STT_OBJECT"; break; |
3379 | | case STT_TLS: st_info_str = "STT_TLS"; break; |
3380 | | default: st_info_str = ""; |
3381 | | } |
3382 | | switch (ELF_ST_BIND (isym->st_info)) |
3383 | | { |
3384 | | case STB_LOCAL: st_info_stb_str = "STB_LOCAL"; break; |
3385 | | case STB_GLOBAL: st_info_stb_str = "STB_GLOBAL"; break; |
3386 | | default: st_info_stb_str = ""; |
3387 | | } |
3388 | | switch (ELF_ST_VISIBILITY (isym->st_other)) |
3389 | | { |
3390 | | case STV_DEFAULT: st_other_str = "STV_DEFAULT"; break; |
3391 | | case STV_INTERNAL: st_other_str = "STV_INTERNAL"; break; |
3392 | | case STV_PROTECTED: st_other_str = "STV_PROTECTED"; break; |
3393 | | default: st_other_str = ""; |
3394 | | } |
3395 | | switch (isym->st_shndx) |
3396 | | { |
3397 | | case SHN_ABS: st_shndx_str = "SHN_ABS"; break; |
3398 | | case SHN_COMMON: st_shndx_str = "SHN_COMMON"; break; |
3399 | | case SHN_UNDEF: st_shndx_str = "SHN_UNDEF"; break; |
3400 | | default: st_shndx_str = ""; |
3401 | | } |
3402 | | |
3403 | | printf ("isym = %p st_value = %lx st_size = %lx st_name = (%lu) %s " |
3404 | | "st_info = (%d) %s %s st_other = (%d) %s st_shndx = (%d) %s\n", |
3405 | | isym, |
3406 | | (unsigned long) isym->st_value, |
3407 | | (unsigned long) isym->st_size, |
3408 | | isym->st_name, |
3409 | | bfd_elf_string_from_elf_section (abfd, symtab_hdr->sh_link, |
3410 | | isym->st_name), |
3411 | | isym->st_info, st_info_str, st_info_stb_str, |
3412 | | isym->st_other, st_other_str, |
3413 | | isym->st_shndx, st_shndx_str); |
3414 | | } |
3415 | | } |
3416 | | |
3417 | | char * |
3418 | | rx_get_reloc (long reloc) |
3419 | | { |
3420 | | if (0 <= reloc && reloc < R_RX_max) |
3421 | | return rx_elf_howto_table[reloc].name; |
3422 | | return ""; |
3423 | | } |
3424 | | #endif /* DEBUG */ |
3425 | | |
3426 | | |
3427 | | /* We must take care to keep the on-disk copy of any code sections |
3428 | | that are fully linked swapped if the target is big endian, to match |
3429 | | the Renesas tools. */ |
3430 | | |
3431 | | /* The rule is: big endian object that are final-link executables, |
3432 | | have code sections stored with 32-bit words swapped relative to |
3433 | | what you'd get by default. */ |
3434 | | |
3435 | | static bool |
3436 | | rx_get_section_contents (bfd * abfd, |
3437 | | sec_ptr section, |
3438 | | void * location, |
3439 | | file_ptr offset, |
3440 | | bfd_size_type count) |
3441 | 89.8k | { |
3442 | 89.8k | int exec = (abfd->flags & EXEC_P) ? 1 : 0; |
3443 | 89.8k | int s_code = (section->flags & SEC_CODE) ? 1 : 0; |
3444 | 89.8k | bool rv; |
3445 | | |
3446 | | #ifdef DJDEBUG |
3447 | | fprintf (stderr, "dj: get %ld %ld from %s %s e%d sc%d %08lx:%08lx\n", |
3448 | | (long) offset, (long) count, section->name, |
3449 | | bfd_big_endian(abfd) ? "be" : "le", |
3450 | | exec, s_code, (long unsigned) section->filepos, |
3451 | | (long unsigned) offset); |
3452 | | #endif |
3453 | | |
3454 | 89.8k | if (exec && s_code && bfd_big_endian (abfd)) |
3455 | 0 | { |
3456 | 0 | char * cloc = (char *) location; |
3457 | 0 | bfd_size_type cnt, end_cnt; |
3458 | |
|
3459 | 0 | rv = true; |
3460 | | |
3461 | | /* Fetch and swap unaligned bytes at the beginning. */ |
3462 | 0 | if (offset % 4) |
3463 | 0 | { |
3464 | 0 | char buf[4]; |
3465 | |
|
3466 | 0 | rv = _bfd_generic_get_section_contents (abfd, section, buf, |
3467 | 0 | (offset & -4), 4); |
3468 | 0 | if (!rv) |
3469 | 0 | return false; |
3470 | | |
3471 | 0 | bfd_putb32 (bfd_getl32 (buf), buf); |
3472 | |
|
3473 | 0 | cnt = 4 - (offset % 4); |
3474 | 0 | if (cnt > count) |
3475 | 0 | cnt = count; |
3476 | |
|
3477 | 0 | memcpy (location, buf + (offset % 4), cnt); |
3478 | |
|
3479 | 0 | count -= cnt; |
3480 | 0 | offset += cnt; |
3481 | 0 | cloc += count; |
3482 | 0 | } |
3483 | | |
3484 | 0 | end_cnt = count % 4; |
3485 | | |
3486 | | /* Fetch and swap the middle bytes. */ |
3487 | 0 | if (count >= 4) |
3488 | 0 | { |
3489 | 0 | rv = _bfd_generic_get_section_contents (abfd, section, cloc, offset, |
3490 | 0 | count - end_cnt); |
3491 | 0 | if (!rv) |
3492 | 0 | return false; |
3493 | | |
3494 | 0 | for (cnt = count; cnt >= 4; cnt -= 4, cloc += 4) |
3495 | 0 | bfd_putb32 (bfd_getl32 (cloc), cloc); |
3496 | 0 | } |
3497 | | |
3498 | | /* Fetch and swap the end bytes. */ |
3499 | 0 | if (end_cnt > 0) |
3500 | 0 | { |
3501 | 0 | char buf[4]; |
3502 | | |
3503 | | /* Fetch the end bytes. */ |
3504 | 0 | rv = _bfd_generic_get_section_contents (abfd, section, buf, |
3505 | 0 | offset + count - end_cnt, 4); |
3506 | 0 | if (!rv) |
3507 | 0 | return false; |
3508 | | |
3509 | 0 | bfd_putb32 (bfd_getl32 (buf), buf); |
3510 | 0 | memcpy (cloc, buf, end_cnt); |
3511 | 0 | } |
3512 | 0 | } |
3513 | 89.8k | else |
3514 | 89.8k | rv = _bfd_generic_get_section_contents (abfd, section, location, offset, count); |
3515 | | |
3516 | 89.8k | return rv; |
3517 | 89.8k | } |
3518 | | |
3519 | | #ifdef DJDEBUG |
3520 | | static bool |
3521 | | rx2_set_section_contents (bfd * abfd, |
3522 | | sec_ptr section, |
3523 | | const void * location, |
3524 | | file_ptr offset, |
3525 | | bfd_size_type count) |
3526 | | { |
3527 | | bfd_size_type i; |
3528 | | |
3529 | | fprintf (stderr, " set sec %s %08x loc %p offset %#x count %#x\n", |
3530 | | section->name, (unsigned) section->vma, location, (int) offset, (int) count); |
3531 | | for (i = 0; i < count; i++) |
3532 | | { |
3533 | | if (i % 16 == 0 && i > 0) |
3534 | | fprintf (stderr, "\n"); |
3535 | | |
3536 | | if (i % 16 && i % 4 == 0) |
3537 | | fprintf (stderr, " "); |
3538 | | |
3539 | | if (i % 16 == 0) |
3540 | | fprintf (stderr, " %08x:", (int) (section->vma + offset + i)); |
3541 | | |
3542 | | fprintf (stderr, " %02x", ((unsigned char *) location)[i]); |
3543 | | } |
3544 | | fprintf (stderr, "\n"); |
3545 | | |
3546 | | return _bfd_elf_set_section_contents (abfd, section, location, offset, count); |
3547 | | } |
3548 | | #define _bfd_elf_set_section_contents rx2_set_section_contents |
3549 | | #endif |
3550 | | |
3551 | | static bool |
3552 | | rx_set_section_contents (bfd * abfd, |
3553 | | sec_ptr section, |
3554 | | const void * location, |
3555 | | file_ptr offset, |
3556 | | bfd_size_type count) |
3557 | 0 | { |
3558 | 0 | bool exec = (abfd->flags & EXEC_P) != 0; |
3559 | 0 | bool s_code = (section->flags & SEC_CODE) != 0; |
3560 | 0 | bool rv; |
3561 | 0 | char * swapped_data = NULL; |
3562 | 0 | bfd_size_type i; |
3563 | 0 | bfd_vma caddr = section->vma + offset; |
3564 | 0 | file_ptr faddr = 0; |
3565 | 0 | bfd_size_type scount; |
3566 | |
|
3567 | | #ifdef DJDEBUG |
3568 | | bfd_size_type i; |
3569 | | |
3570 | | fprintf (stderr, "\ndj: set %ld %ld to %s %s e%d sc%d\n", |
3571 | | (long) offset, (long) count, section->name, |
3572 | | bfd_big_endian (abfd) ? "be" : "le", |
3573 | | exec, s_code); |
3574 | | |
3575 | | for (i = 0; i < count; i++) |
3576 | | { |
3577 | | int a = section->vma + offset + i; |
3578 | | |
3579 | | if (a % 16 == 0 && a > 0) |
3580 | | fprintf (stderr, "\n"); |
3581 | | |
3582 | | if (a % 16 && a % 4 == 0) |
3583 | | fprintf (stderr, " "); |
3584 | | |
3585 | | if (a % 16 == 0 || i == 0) |
3586 | | fprintf (stderr, " %08x:", (int) (section->vma + offset + i)); |
3587 | | |
3588 | | fprintf (stderr, " %02x", ((unsigned char *) location)[i]); |
3589 | | } |
3590 | | |
3591 | | fprintf (stderr, "\n"); |
3592 | | #endif |
3593 | |
|
3594 | 0 | if (! exec || ! s_code || ! bfd_big_endian (abfd)) |
3595 | 0 | return _bfd_elf_set_section_contents (abfd, section, location, offset, count); |
3596 | | |
3597 | 0 | while (count > 0 && caddr > 0 && caddr % 4) |
3598 | 0 | { |
3599 | 0 | switch (caddr % 4) |
3600 | 0 | { |
3601 | 0 | case 0: faddr = offset + 3; break; |
3602 | 0 | case 1: faddr = offset + 1; break; |
3603 | 0 | case 2: faddr = offset - 1; break; |
3604 | 0 | case 3: faddr = offset - 3; break; |
3605 | 0 | } |
3606 | | |
3607 | 0 | rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1); |
3608 | 0 | if (! rv) |
3609 | 0 | return rv; |
3610 | | |
3611 | 0 | location = (bfd_byte *) location + 1; |
3612 | 0 | offset ++; |
3613 | 0 | count --; |
3614 | 0 | caddr ++; |
3615 | 0 | } |
3616 | | |
3617 | 0 | scount = (int)(count / 4) * 4; |
3618 | 0 | if (scount > 0) |
3619 | 0 | { |
3620 | 0 | char * cloc = (char *) location; |
3621 | |
|
3622 | 0 | swapped_data = (char *) bfd_alloc (abfd, count); |
3623 | 0 | if (swapped_data == NULL) |
3624 | 0 | return false; |
3625 | | |
3626 | 0 | for (i = 0; i < count; i += 4) |
3627 | 0 | { |
3628 | 0 | bfd_vma v = bfd_getl32 (cloc + i); |
3629 | 0 | bfd_putb32 (v, swapped_data + i); |
3630 | 0 | } |
3631 | |
|
3632 | 0 | rv = _bfd_elf_set_section_contents (abfd, section, swapped_data, offset, scount); |
3633 | |
|
3634 | 0 | if (!rv) |
3635 | 0 | return rv; |
3636 | 0 | } |
3637 | | |
3638 | 0 | count -= scount; |
3639 | 0 | location = (bfd_byte *) location + scount; |
3640 | 0 | offset += scount; |
3641 | |
|
3642 | 0 | if (count > 0) |
3643 | 0 | { |
3644 | 0 | caddr = section->vma + offset; |
3645 | 0 | while (count > 0) |
3646 | 0 | { |
3647 | 0 | switch (caddr % 4) |
3648 | 0 | { |
3649 | 0 | case 0: faddr = offset + 3; break; |
3650 | 0 | case 1: faddr = offset + 1; break; |
3651 | 0 | case 2: faddr = offset - 1; break; |
3652 | 0 | case 3: faddr = offset - 3; break; |
3653 | 0 | } |
3654 | 0 | rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1); |
3655 | 0 | if (! rv) |
3656 | 0 | return rv; |
3657 | | |
3658 | 0 | location = (bfd_byte *) location + 1; |
3659 | 0 | offset ++; |
3660 | 0 | count --; |
3661 | 0 | caddr ++; |
3662 | 0 | } |
3663 | 0 | } |
3664 | | |
3665 | 0 | return true; |
3666 | 0 | } |
3667 | | |
3668 | | static bool |
3669 | | rx_final_link (bfd * abfd, struct bfd_link_info * info) |
3670 | 0 | { |
3671 | 0 | asection * o; |
3672 | |
|
3673 | 0 | for (o = abfd->sections; o != NULL; o = o->next) |
3674 | 0 | { |
3675 | | #ifdef DJDEBUG |
3676 | | fprintf (stderr, "sec %s fl %x vma %lx lma %lx size %lx raw %lx\n", |
3677 | | o->name, o->flags, o->vma, o->lma, o->size, o->rawsize); |
3678 | | #endif |
3679 | 0 | if (o->flags & SEC_CODE |
3680 | 0 | && bfd_big_endian (abfd) |
3681 | 0 | && o->size % 4) |
3682 | 0 | { |
3683 | | #ifdef DJDEBUG |
3684 | | fprintf (stderr, "adjusting...\n"); |
3685 | | #endif |
3686 | 0 | o->size += 4 - (o->size % 4); |
3687 | 0 | } |
3688 | 0 | } |
3689 | |
|
3690 | 0 | return _bfd_elf_final_link (abfd, info); |
3691 | 0 | } |
3692 | | |
3693 | | static bool |
3694 | | elf32_rx_modify_headers (bfd *abfd, struct bfd_link_info *info) |
3695 | 1 | { |
3696 | 1 | elf_backend_data *bed; |
3697 | 1 | struct elf_obj_tdata * tdata; |
3698 | 1 | Elf_Internal_Phdr * phdr; |
3699 | 1 | unsigned int count; |
3700 | 1 | unsigned int i; |
3701 | | |
3702 | 1 | bed = get_elf_backend_data (abfd); |
3703 | 1 | tdata = elf_tdata (abfd); |
3704 | 1 | phdr = tdata->phdr; |
3705 | 1 | count = elf_program_header_size (abfd) / bed->s->sizeof_phdr; |
3706 | | |
3707 | 1 | if (ignore_lma) |
3708 | 1 | for (i = count; i-- != 0;) |
3709 | 0 | if (phdr[i].p_type == PT_LOAD) |
3710 | 0 | { |
3711 | | /* The Renesas tools expect p_paddr to be zero. However, |
3712 | | there is no other way to store the writable data in ROM for |
3713 | | startup initialization. So, we let the linker *think* |
3714 | | we're using paddr and vaddr the "usual" way, but at the |
3715 | | last minute we move the paddr into the vaddr (which is what |
3716 | | the simulator uses) and zero out paddr. Note that this |
3717 | | does not affect the section headers, just the program |
3718 | | headers. We hope. */ |
3719 | 0 | phdr[i].p_vaddr = phdr[i].p_paddr; |
3720 | | #if 0 /* If we zero out p_paddr, then the LMA in the section table |
3721 | | becomes wrong. */ |
3722 | | phdr[i].p_paddr = 0; |
3723 | | #endif |
3724 | 0 | } |
3725 | | |
3726 | 1 | return _bfd_elf_modify_headers (abfd, info); |
3727 | 1 | } |
3728 | | |
3729 | | /* The default literal sections should always be marked as "code" (i.e., |
3730 | | SHF_EXECINSTR). This is particularly important for big-endian mode |
3731 | | when we do not want their contents byte reversed. */ |
3732 | | static const struct bfd_elf_special_section elf32_rx_special_sections[] = |
3733 | | { |
3734 | | { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, |
3735 | | { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, |
3736 | | { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR }, |
3737 | | { NULL, 0, 0, 0, 0 } |
3738 | | }; |
3739 | | |
3740 | | typedef struct { |
3741 | | bfd *abfd; |
3742 | | struct bfd_link_info *info; |
3743 | | bfd_vma table_start; |
3744 | | int table_size; |
3745 | | bfd_vma *table_handlers; |
3746 | | bfd_vma table_default_handler; |
3747 | | struct bfd_link_hash_entry **table_entries; |
3748 | | struct bfd_link_hash_entry *table_default_entry; |
3749 | | FILE *mapfile; |
3750 | | } RX_Table_Info; |
3751 | | |
3752 | | static bool |
3753 | | rx_table_find (struct bfd_hash_entry *vent, void *vinfo) |
3754 | 0 | { |
3755 | 0 | RX_Table_Info *info = (RX_Table_Info *)vinfo; |
3756 | 0 | struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent; |
3757 | 0 | const char *name; /* of the symbol we've found */ |
3758 | 0 | asection *sec; |
3759 | 0 | struct bfd *abfd; |
3760 | 0 | int idx; |
3761 | 0 | const char *tname; /* name of the table */ |
3762 | 0 | bfd_vma start_addr, end_addr; |
3763 | 0 | char *buf; |
3764 | 0 | struct bfd_link_hash_entry * h; |
3765 | | |
3766 | | /* We're looking for globally defined symbols of the form |
3767 | | $tablestart$<NAME>. */ |
3768 | 0 | if (ent->type != bfd_link_hash_defined |
3769 | 0 | && ent->type != bfd_link_hash_defweak) |
3770 | 0 | return true; |
3771 | | |
3772 | 0 | name = ent->root.string; |
3773 | 0 | sec = ent->u.def.section; |
3774 | 0 | abfd = sec->owner; |
3775 | |
|
3776 | 0 | if (!startswith (name, "$tablestart$")) |
3777 | 0 | return true; |
3778 | | |
3779 | 0 | sec->flags |= SEC_KEEP; |
3780 | |
|
3781 | 0 | tname = name + 12; |
3782 | |
|
3783 | 0 | start_addr = ent->u.def.value; |
3784 | | |
3785 | | /* At this point, we can't build the table but we can (and must) |
3786 | | find all the related symbols and mark their sections as SEC_KEEP |
3787 | | so we don't garbage collect them. */ |
3788 | |
|
3789 | 0 | buf = (char *) bfd_malloc (12 + 10 + strlen (tname)); |
3790 | 0 | if (buf == NULL) |
3791 | 0 | return false; |
3792 | | |
3793 | 0 | sprintf (buf, "$tableend$%s", tname); |
3794 | 0 | h = bfd_link_hash_lookup (info->info->hash, buf, false, false, true); |
3795 | 0 | if (!h || (h->type != bfd_link_hash_defined |
3796 | 0 | && h->type != bfd_link_hash_defweak)) |
3797 | 0 | { |
3798 | | /* xgettext:c-format */ |
3799 | 0 | _bfd_error_handler (_("%pB:%pA: table %s missing corresponding %s"), |
3800 | 0 | abfd, sec, name, buf); |
3801 | 0 | return true; |
3802 | 0 | } |
3803 | | |
3804 | 0 | if (h->u.def.section != ent->u.def.section) |
3805 | 0 | { |
3806 | | /* xgettext:c-format */ |
3807 | 0 | _bfd_error_handler (_("%pB:%pA: %s and %s must be in the same input section"), |
3808 | 0 | h->u.def.section->owner, h->u.def.section, |
3809 | 0 | name, buf); |
3810 | 0 | return true; |
3811 | 0 | } |
3812 | | |
3813 | 0 | end_addr = h->u.def.value; |
3814 | |
|
3815 | 0 | sprintf (buf, "$tableentry$default$%s", tname); |
3816 | 0 | h = bfd_link_hash_lookup (info->info->hash, buf, false, false, true); |
3817 | 0 | if (h && (h->type == bfd_link_hash_defined |
3818 | 0 | || h->type == bfd_link_hash_defweak)) |
3819 | 0 | { |
3820 | 0 | h->u.def.section->flags |= SEC_KEEP; |
3821 | 0 | } |
3822 | |
|
3823 | 0 | for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++) |
3824 | 0 | { |
3825 | 0 | sprintf (buf, "$tableentry$%d$%s", idx, tname); |
3826 | 0 | h = bfd_link_hash_lookup (info->info->hash, buf, false, false, true); |
3827 | 0 | if (h && (h->type == bfd_link_hash_defined |
3828 | 0 | || h->type == bfd_link_hash_defweak)) |
3829 | 0 | { |
3830 | 0 | h->u.def.section->flags |= SEC_KEEP; |
3831 | 0 | } |
3832 | 0 | } |
3833 | | |
3834 | | /* Return TRUE to keep scanning, FALSE to end the traversal. */ |
3835 | 0 | return true; |
3836 | 0 | } |
3837 | | |
3838 | | /* We need to check for table entry symbols and build the tables, and |
3839 | | we need to do it before the linker does garbage collection. This function is |
3840 | | called once per input object file. */ |
3841 | | static bool |
3842 | | rx_check_directives |
3843 | | (bfd * abfd ATTRIBUTE_UNUSED, |
3844 | | struct bfd_link_info * info ATTRIBUTE_UNUSED) |
3845 | 0 | { |
3846 | 0 | RX_Table_Info stuff; |
3847 | |
|
3848 | 0 | stuff.abfd = abfd; |
3849 | 0 | stuff.info = info; |
3850 | 0 | bfd_hash_traverse (&(info->hash->table), rx_table_find, &stuff); |
3851 | |
|
3852 | 0 | return true; |
3853 | 0 | } |
3854 | | |
3855 | | |
3856 | | static bool |
3857 | | rx_table_map_2 (struct bfd_hash_entry *vent, void *vinfo) |
3858 | 0 | { |
3859 | 0 | RX_Table_Info *info = (RX_Table_Info *)vinfo; |
3860 | 0 | struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent; |
3861 | 0 | int idx; |
3862 | 0 | const char *name; |
3863 | 0 | bfd_vma addr; |
3864 | | |
3865 | | /* See if the symbol ENT has an address listed in the table, and |
3866 | | isn't a debug/special symbol. If so, put it in the table. */ |
3867 | |
|
3868 | 0 | if (ent->type != bfd_link_hash_defined |
3869 | 0 | && ent->type != bfd_link_hash_defweak) |
3870 | 0 | return true; |
3871 | | |
3872 | 0 | name = ent->root.string; |
3873 | |
|
3874 | 0 | if (name[0] == '$' || name[0] == '.' || name[0] < ' ') |
3875 | 0 | return true; |
3876 | | |
3877 | 0 | addr = (ent->u.def.value |
3878 | 0 | + ent->u.def.section->output_section->vma |
3879 | 0 | + ent->u.def.section->output_offset); |
3880 | |
|
3881 | 0 | for (idx = 0; idx < info->table_size; idx ++) |
3882 | 0 | if (addr == info->table_handlers[idx]) |
3883 | 0 | info->table_entries[idx] = ent; |
3884 | |
|
3885 | 0 | if (addr == info->table_default_handler) |
3886 | 0 | info->table_default_entry = ent; |
3887 | |
|
3888 | 0 | return true; |
3889 | 0 | } |
3890 | | |
3891 | | static bool |
3892 | | rx_table_map (struct bfd_hash_entry *vent, void *vinfo) |
3893 | 0 | { |
3894 | 0 | RX_Table_Info *info = (RX_Table_Info *)vinfo; |
3895 | 0 | struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent; |
3896 | 0 | const char *name; /* of the symbol we've found */ |
3897 | 0 | int idx; |
3898 | 0 | const char *tname; /* name of the table */ |
3899 | 0 | bfd_vma start_addr, end_addr; |
3900 | 0 | char *buf; |
3901 | 0 | struct bfd_link_hash_entry * h; |
3902 | 0 | int need_elipses; |
3903 | | |
3904 | | /* We're looking for globally defined symbols of the form |
3905 | | $tablestart$<NAME>. */ |
3906 | 0 | if (ent->type != bfd_link_hash_defined |
3907 | 0 | && ent->type != bfd_link_hash_defweak) |
3908 | 0 | return true; |
3909 | | |
3910 | 0 | name = ent->root.string; |
3911 | |
|
3912 | 0 | if (!startswith (name, "$tablestart$")) |
3913 | 0 | return true; |
3914 | | |
3915 | 0 | tname = name + 12; |
3916 | 0 | start_addr = (ent->u.def.value |
3917 | 0 | + ent->u.def.section->output_section->vma |
3918 | 0 | + ent->u.def.section->output_offset); |
3919 | |
|
3920 | 0 | buf = (char *) bfd_malloc (12 + 10 + strlen (tname)); |
3921 | 0 | if (buf == NULL) |
3922 | 0 | return false; |
3923 | | |
3924 | 0 | sprintf (buf, "$tableend$%s", tname); |
3925 | 0 | end_addr = get_symbol_value_maybe (buf, info->info); |
3926 | |
|
3927 | 0 | sprintf (buf, "$tableentry$default$%s", tname); |
3928 | 0 | h = bfd_link_hash_lookup (info->info->hash, buf, false, false, true); |
3929 | 0 | if (h) |
3930 | 0 | { |
3931 | 0 | info->table_default_handler = (h->u.def.value |
3932 | 0 | + h->u.def.section->output_section->vma |
3933 | 0 | + h->u.def.section->output_offset); |
3934 | 0 | } |
3935 | 0 | else |
3936 | | /* Zero is a valid handler address! */ |
3937 | 0 | info->table_default_handler = (bfd_vma) (-1); |
3938 | 0 | info->table_default_entry = NULL; |
3939 | |
|
3940 | 0 | info->table_start = start_addr; |
3941 | 0 | info->table_size = (int) (end_addr - start_addr) / 4; |
3942 | 0 | info->table_handlers = (bfd_vma *) |
3943 | 0 | bfd_malloc (info->table_size * sizeof (bfd_vma)); |
3944 | 0 | if (info->table_handlers == NULL) |
3945 | 0 | { |
3946 | 0 | free (buf); |
3947 | 0 | return false; |
3948 | 0 | } |
3949 | 0 | info->table_entries = (struct bfd_link_hash_entry **) |
3950 | 0 | bfd_malloc (info->table_size * sizeof (struct bfd_link_hash_entry)); |
3951 | 0 | if (info->table_entries == NULL) |
3952 | 0 | { |
3953 | 0 | free (info->table_handlers); |
3954 | 0 | free (buf); |
3955 | 0 | return false; |
3956 | 0 | } |
3957 | | |
3958 | 0 | for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++) |
3959 | 0 | { |
3960 | 0 | sprintf (buf, "$tableentry$%d$%s", idx, tname); |
3961 | 0 | h = bfd_link_hash_lookup (info->info->hash, buf, false, false, true); |
3962 | 0 | if (h && (h->type == bfd_link_hash_defined |
3963 | 0 | || h->type == bfd_link_hash_defweak)) |
3964 | 0 | { |
3965 | 0 | info->table_handlers[idx] = (h->u.def.value |
3966 | 0 | + h->u.def.section->output_section->vma |
3967 | 0 | + h->u.def.section->output_offset); |
3968 | 0 | } |
3969 | 0 | else |
3970 | 0 | info->table_handlers[idx] = info->table_default_handler; |
3971 | 0 | info->table_entries[idx] = NULL; |
3972 | 0 | } |
3973 | |
|
3974 | 0 | free (buf); |
3975 | |
|
3976 | 0 | bfd_hash_traverse (&(info->info->hash->table), rx_table_map_2, info); |
3977 | |
|
3978 | 0 | fprintf (info->mapfile, |
3979 | 0 | "\nRX Vector Table: %s has %d entries at 0x%08" PRIx64 "\n\n", |
3980 | 0 | tname, info->table_size, (uint64_t) start_addr); |
3981 | |
|
3982 | 0 | if (info->table_default_entry) |
3983 | 0 | fprintf (info->mapfile, " default handler is: %s at 0x%08" PRIx64 "\n", |
3984 | 0 | info->table_default_entry->root.string, |
3985 | 0 | (uint64_t) info->table_default_handler); |
3986 | 0 | else if (info->table_default_handler != (bfd_vma)(-1)) |
3987 | 0 | fprintf (info->mapfile, " default handler is at 0x%08" PRIx64 "\n", |
3988 | 0 | (uint64_t) info->table_default_handler); |
3989 | 0 | else |
3990 | 0 | fprintf (info->mapfile, " no default handler\n"); |
3991 | |
|
3992 | 0 | need_elipses = 1; |
3993 | 0 | for (idx = 0; idx < info->table_size; idx ++) |
3994 | 0 | { |
3995 | 0 | if (info->table_handlers[idx] == info->table_default_handler) |
3996 | 0 | { |
3997 | 0 | if (need_elipses) |
3998 | 0 | fprintf (info->mapfile, " . . .\n"); |
3999 | 0 | need_elipses = 0; |
4000 | 0 | continue; |
4001 | 0 | } |
4002 | 0 | need_elipses = 1; |
4003 | |
|
4004 | 0 | fprintf (info->mapfile, |
4005 | 0 | " 0x%08" PRIx64 " [%3d] ", (uint64_t) start_addr + 4 * idx, idx); |
4006 | |
|
4007 | 0 | if (info->table_handlers[idx] == (bfd_vma) (-1)) |
4008 | 0 | fprintf (info->mapfile, "(no handler found)\n"); |
4009 | | |
4010 | 0 | else if (info->table_handlers[idx] == info->table_default_handler) |
4011 | 0 | { |
4012 | 0 | if (info->table_default_entry) |
4013 | 0 | fprintf (info->mapfile, "(default)\n"); |
4014 | 0 | else |
4015 | 0 | fprintf (info->mapfile, "(default)\n"); |
4016 | 0 | } |
4017 | | |
4018 | 0 | else if (info->table_entries[idx]) |
4019 | 0 | { |
4020 | 0 | fprintf (info->mapfile, "0x%08" PRIx64 " %s\n", |
4021 | 0 | (uint64_t) info->table_handlers[idx], |
4022 | 0 | info->table_entries[idx]->root.string); |
4023 | 0 | } |
4024 | | |
4025 | 0 | else |
4026 | 0 | { |
4027 | 0 | fprintf (info->mapfile, "0x%08" PRIx64 " ???\n", |
4028 | 0 | (uint64_t) info->table_handlers[idx]); |
4029 | 0 | } |
4030 | 0 | } |
4031 | 0 | if (need_elipses) |
4032 | 0 | fprintf (info->mapfile, " . . .\n"); |
4033 | |
|
4034 | 0 | return true; |
4035 | 0 | } |
4036 | | |
4037 | | void |
4038 | | rx_additional_link_map_text (bfd *obfd, struct bfd_link_info *info, FILE *mapfile) |
4039 | 0 | { |
4040 | | /* We scan the symbol table looking for $tableentry$'s, and for |
4041 | | each, try to deduce which handlers go with which entries. */ |
4042 | |
|
4043 | 0 | RX_Table_Info stuff; |
4044 | |
|
4045 | 0 | stuff.abfd = obfd; |
4046 | 0 | stuff.info = info; |
4047 | 0 | stuff.mapfile = mapfile; |
4048 | 0 | bfd_hash_traverse (&(info->hash->table), rx_table_map, &stuff); |
4049 | 0 | } |
4050 | | |
4051 | | |
4052 | | #define ELF_ARCH bfd_arch_rx |
4053 | | #define ELF_MACHINE_CODE EM_RX |
4054 | | #define ELF_MAXPAGESIZE 0x1000 |
4055 | | |
4056 | | #define TARGET_BIG_SYM rx_elf32_be_vec |
4057 | | #define TARGET_BIG_NAME "elf32-rx-be" |
4058 | | |
4059 | | #define TARGET_LITTLE_SYM rx_elf32_le_vec |
4060 | | #define TARGET_LITTLE_NAME "elf32-rx-le" |
4061 | | |
4062 | | #define elf_info_to_howto_rel NULL |
4063 | | #define elf_info_to_howto rx_info_to_howto_rela |
4064 | | #define elf_backend_object_p rx_elf_object_p |
4065 | | #define elf_backend_relocate_section rx_elf_relocate_section |
4066 | | #define elf_symbol_leading_char ('_') |
4067 | | #define elf_backend_can_gc_sections 1 |
4068 | | #define elf_backend_modify_headers elf32_rx_modify_headers |
4069 | | |
4070 | | #define bfd_elf32_bfd_reloc_type_lookup rx_reloc_type_lookup |
4071 | | #define bfd_elf32_bfd_reloc_name_lookup rx_reloc_name_lookup |
4072 | | #define bfd_elf32_bfd_set_private_flags rx_elf_set_private_flags |
4073 | | #define bfd_elf32_bfd_merge_private_bfd_data rx_elf_merge_private_bfd_data |
4074 | | #define bfd_elf32_bfd_print_private_bfd_data rx_elf_print_private_bfd_data |
4075 | | #define bfd_elf32_get_section_contents rx_get_section_contents |
4076 | | #define bfd_elf32_set_section_contents rx_set_section_contents |
4077 | | #define bfd_elf32_bfd_final_link rx_final_link |
4078 | | #define bfd_elf32_bfd_relax_section elf32_rx_relax_section_wrapper |
4079 | | #define elf_backend_special_sections elf32_rx_special_sections |
4080 | | #define elf_backend_check_directives rx_check_directives |
4081 | | |
4082 | | #include "elf32-target.h" |
4083 | | |
4084 | | /* We define a second big-endian target that doesn't have the custom |
4085 | | section get/set hooks, for times when we want to preserve the |
4086 | | pre-swapped .text sections (like objcopy). */ |
4087 | | |
4088 | | #undef TARGET_BIG_SYM |
4089 | | #define TARGET_BIG_SYM rx_elf32_be_ns_vec |
4090 | | #undef TARGET_BIG_NAME |
4091 | | #define TARGET_BIG_NAME "elf32-rx-be-ns" |
4092 | | #undef TARGET_LITTLE_SYM |
4093 | | |
4094 | | #undef bfd_elf32_get_section_contents |
4095 | | #undef bfd_elf32_set_section_contents |
4096 | | |
4097 | | #undef elf32_bed |
4098 | | #define elf32_bed elf32_rx_be_ns_bed |
4099 | | |
4100 | | #include "elf32-target.h" |
4101 | | |
4102 | | #undef TARGET_LITTLE_SYM |
4103 | | #define TARGET_LITTLE_SYM rx_elf32_linux_le_vec |
4104 | | #undef TARGET_LITTLE_NAME |
4105 | | #define TARGET_LITTLE_NAME "elf32-rx-linux" |
4106 | | #undef TARGET_BIG_SYM |
4107 | | #undef TARGET_BIG_NAME |
4108 | | |
4109 | | #undef elf_backend_object_p |
4110 | | #define elf_backend_object_p rx_linux_object_p |
4111 | | #undef elf_symbol_leading_char |
4112 | | #undef elf32_bed |
4113 | | #define elf32_bed elf32_rx_le_linux_bed |
4114 | | |
4115 | | #include "elf32-target.h" |