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3c3bdf30 | 1 | /* BFD back-end for mmo objects (MMIX-specific object-format). |
a2c58332 | 2 | Copyright (C) 2001-2022 Free Software Foundation, Inc. |
3c3bdf30 NC |
3 | Written by Hans-Peter Nilsson (hp@bitrange.com). |
4 | Infrastructure and other bits originally copied from srec.c and | |
5 | binary.c. | |
6 | ||
cd123cb7 | 7 | This file is part of BFD, the Binary File Descriptor library. |
3c3bdf30 | 8 | |
cd123cb7 NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
3c3bdf30 | 13 | |
cd123cb7 NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
3c3bdf30 | 23 | |
3c3bdf30 NC |
24 | |
25 | /* | |
26 | SECTION | |
27 | mmo backend | |
28 | ||
29 | The mmo object format is used exclusively together with Professor | |
30 | Donald E.@: Knuth's educational 64-bit processor MMIX. The simulator | |
6eeb40b2 | 31 | @command{mmix} which is available at |
52f4ea79 | 32 | @url{http://mmix.cs.hm.edu/src/index.html} |
3c3bdf30 | 33 | understands this format. That package also includes a combined |
6eeb40b2 | 34 | assembler and linker called @command{mmixal}. The mmo format has |
3c3bdf30 NC |
35 | no advantages feature-wise compared to e.g. ELF. It is a simple |
36 | non-relocatable object format with no support for archives or | |
37 | debugging information, except for symbol value information and | |
38 | line numbers (which is not yet implemented in BFD). See | |
52f4ea79 | 39 | @url{http://mmix.cs.hm.edu/} for more |
3c3bdf30 NC |
40 | information about MMIX. The ELF format is used for intermediate |
41 | object files in the BFD implementation. | |
42 | ||
43 | @c We want to xref the symbol table node. A feature in "chew" | |
44 | @c requires that "commands" do not contain spaces in the | |
45 | @c arguments. Hence the hyphen in "Symbol-table". | |
46 | @menu | |
47 | @* File layout:: | |
48 | @* Symbol-table:: | |
49 | @* mmo section mapping:: | |
50 | @end menu | |
51 | ||
52 | INODE | |
53 | File layout, Symbol-table, mmo, mmo | |
54 | SUBSECTION | |
55 | File layout | |
56 | ||
57 | The mmo file contents is not partitioned into named sections as | |
58 | with e.g.@: ELF. Memory areas is formed by specifying the | |
59 | location of the data that follows. Only the memory area | |
60 | @samp{0x0000@dots{}00} to @samp{0x01ff@dots{}ff} is executable, so | |
61 | it is used for code (and constants) and the area | |
62 | @samp{0x2000@dots{}00} to @samp{0x20ff@dots{}ff} is used for | |
63 | writable data. @xref{mmo section mapping}. | |
64 | ||
830866af HPN |
65 | There is provision for specifying ``special data'' of 65536 |
66 | different types. We use type 80 (decimal), arbitrarily chosen the | |
67 | same as the ELF <<e_machine>> number for MMIX, filling it with | |
68 | section information normally found in ELF objects. @xref{mmo | |
69 | section mapping}. | |
70 | ||
3c3bdf30 NC |
71 | Contents is entered as 32-bit words, xor:ed over previous |
72 | contents, always zero-initialized. A word that starts with the | |
73 | byte @samp{0x98} forms a command called a @samp{lopcode}, where | |
74 | the next byte distinguished between the thirteen lopcodes. The | |
75 | two remaining bytes, called the @samp{Y} and @samp{Z} fields, or | |
76 | the @samp{YZ} field (a 16-bit big-endian number), are used for | |
77 | various purposes different for each lopcode. As documented in | |
52f4ea79 | 78 | @url{http://mmix.cs.hm.edu/doc/mmixal.pdf}, |
3c3bdf30 NC |
79 | the lopcodes are: |
80 | ||
3c3bdf30 NC |
81 | @table @code |
82 | @item lop_quote | |
83 | 0x98000001. The next word is contents, regardless of whether it | |
84 | starts with 0x98 or not. | |
85 | ||
86 | @item lop_loc | |
87 | 0x9801YYZZ, where @samp{Z} is 1 or 2. This is a location | |
88 | directive, setting the location for the next data to the next | |
89 | 32-bit word (for @math{Z = 1}) or 64-bit word (for @math{Z = 2}), | |
90 | plus @math{Y * 2^56}. Normally @samp{Y} is 0 for the text segment | |
1218d67d HPN |
91 | and 2 for the data segment. Beware that the low bits of non- |
92 | tetrabyte-aligned values are silently discarded when being | |
93 | automatically incremented and when storing contents (in contrast | |
94 | to e.g. its use as current location when followed by lop_fixo | |
95 | et al before the next possibly-quoted tetrabyte contents). | |
3c3bdf30 NC |
96 | |
97 | @item lop_skip | |
98 | 0x9802YYZZ. Increase the current location by @samp{YZ} bytes. | |
99 | ||
100 | @item lop_fixo | |
101 | 0x9803YYZZ, where @samp{Z} is 1 or 2. Store the current location | |
102 | as 64 bits into the location pointed to by the next 32-bit | |
103 | (@math{Z = 1}) or 64-bit (@math{Z = 2}) word, plus @math{Y * | |
104 | 2^56}. | |
105 | ||
106 | @item lop_fixr | |
107 | 0x9804YYZZ. @samp{YZ} is stored into the current location plus | |
108 | @math{2 - 4 * YZ}. | |
109 | ||
110 | @item lop_fixrx | |
111 | 0x980500ZZ. @samp{Z} is 16 or 24. A value @samp{L} derived from | |
112 | the following 32-bit word are used in a manner similar to | |
113 | @samp{YZ} in lop_fixr: it is xor:ed into the current location | |
114 | minus @math{4 * L}. The first byte of the word is 0 or 1. If it | |
115 | is 1, then @math{L = (@var{lowest 24 bits of word}) - 2^Z}, if 0, | |
07d6d2b8 | 116 | then @math{L = (@var{lowest 24 bits of word})}. |
3c3bdf30 NC |
117 | |
118 | @item lop_file | |
119 | 0x9806YYZZ. @samp{Y} is the file number, @samp{Z} is count of | |
120 | 32-bit words. Set the file number to @samp{Y} and the line | |
121 | counter to 0. The next @math{Z * 4} bytes contain the file name, | |
122 | padded with zeros if the count is not a multiple of four. The | |
123 | same @samp{Y} may occur multiple times, but @samp{Z} must be 0 for | |
124 | all but the first occurrence. | |
125 | ||
126 | @item lop_line | |
127 | 0x9807YYZZ. @samp{YZ} is the line number. Together with | |
128 | lop_file, it forms the source location for the next 32-bit word. | |
129 | Note that for each non-lopcode 32-bit word, line numbers are | |
130 | assumed incremented by one. | |
131 | ||
132 | @item lop_spec | |
133 | 0x9808YYZZ. @samp{YZ} is the type number. Data until the next | |
134 | lopcode other than lop_quote forms special data of type @samp{YZ}. | |
135 | @xref{mmo section mapping}. | |
136 | ||
137 | Other types than 80, (or type 80 with a content that does not | |
138 | parse) is stored in sections named <<.MMIX.spec_data.@var{n}>> | |
139 | where @var{n} is the @samp{YZ}-type. The flags for such a | |
140 | sections say not to allocate or load the data. The vma is 0. | |
141 | Contents of multiple occurrences of special data @var{n} is | |
142 | concatenated to the data of the previous lop_spec @var{n}s. The | |
143 | location in data or code at which the lop_spec occurred is lost. | |
144 | ||
145 | @item lop_pre | |
146 | 0x980901ZZ. The first lopcode in a file. The @samp{Z} field forms the | |
147 | length of header information in 32-bit words, where the first word | |
148 | tells the time in seconds since @samp{00:00:00 GMT Jan 1 1970}. | |
149 | ||
150 | @item lop_post | |
151 | 0x980a00ZZ. @math{Z > 32}. This lopcode follows after all | |
152 | content-generating lopcodes in a program. The @samp{Z} field | |
153 | denotes the value of @samp{rG} at the beginning of the program. | |
154 | The following @math{256 - Z} big-endian 64-bit words are loaded | |
155 | into global registers @samp{$G} @dots{} @samp{$255}. | |
156 | ||
157 | @item lop_stab | |
158 | 0x980b0000. The next-to-last lopcode in a program. Must follow | |
159 | immediately after the lop_post lopcode and its data. After this | |
160 | lopcode follows all symbols in a compressed format | |
161 | (@pxref{Symbol-table}). | |
162 | ||
163 | @item lop_end | |
164 | 0x980cYYZZ. The last lopcode in a program. It must follow the | |
165 | lop_stab lopcode and its data. The @samp{YZ} field contains the | |
166 | number of 32-bit words of symbol table information after the | |
167 | preceding lop_stab lopcode. | |
168 | @end table | |
169 | ||
170 | Note that the lopcode "fixups"; <<lop_fixr>>, <<lop_fixrx>> and | |
171 | <<lop_fixo>> are not generated by BFD, but are handled. They are | |
172 | generated by <<mmixal>>. | |
173 | ||
174 | EXAMPLE | |
175 | This trivial one-label, one-instruction file: | |
176 | ||
177 | | :Main TRAP 1,2,3 | |
178 | ||
179 | can be represented this way in mmo: | |
180 | ||
181 | | 0x98090101 - lop_pre, one 32-bit word with timestamp. | |
182 | | <timestamp> | |
183 | | 0x98010002 - lop_loc, text segment, using a 64-bit address. | |
184 | | Note that mmixal does not emit this for the file above. | |
185 | | 0x00000000 - Address, high 32 bits. | |
186 | | 0x00000000 - Address, low 32 bits. | |
187 | | 0x98060002 - lop_file, 2 32-bit words for file-name. | |
188 | | 0x74657374 - "test" | |
189 | | 0x2e730000 - ".s\0\0" | |
190 | | 0x98070001 - lop_line, line 1. | |
191 | | 0x00010203 - TRAP 1,2,3 | |
192 | | 0x980a00ff - lop_post, setting $255 to 0. | |
193 | | 0x00000000 | |
194 | | 0x00000000 | |
195 | | 0x980b0000 - lop_stab for ":Main" = 0, serial 1. | |
196 | | 0x203a4040 @xref{Symbol-table}. | |
197 | | 0x10404020 | |
198 | | 0x4d206120 | |
199 | | 0x69016e00 | |
200 | | 0x81000000 | |
201 | | 0x980c0005 - lop_end; symbol table contained five 32-bit words. */ | |
202 | ||
3c3bdf30 | 203 | #include "sysdep.h" |
3db64b00 | 204 | #include "bfd.h" |
3c3bdf30 NC |
205 | #include "libbfd.h" |
206 | #include "libiberty.h" | |
207 | #include "elf/mmix.h" | |
208 | #include "opcode/mmix.h" | |
3c3bdf30 | 209 | |
13c9c485 | 210 | #define LOP 0x98u |
3c3bdf30 NC |
211 | #define LOP_QUOTE 0 |
212 | #define LOP_LOC 1 | |
213 | #define LOP_SKIP 2 | |
214 | #define LOP_FIXO 3 | |
215 | #define LOP_FIXR 4 | |
216 | #define LOP_FIXRX 5 | |
217 | #define LOP_FILE 6 | |
218 | #define LOP_LINE 7 | |
219 | #define LOP_SPEC 8 | |
220 | #define LOP_PRE 9 | |
221 | #define LOP_POST 10 | |
222 | #define LOP_STAB 11 | |
223 | #define LOP_END 12 | |
224 | ||
225 | #define LOP_QUOTE_NEXT ((LOP << 24) | (LOP_QUOTE << 16) | 1) | |
226 | #define SPEC_DATA_SECTION 80 | |
227 | #define LOP_SPEC_SECTION \ | |
228 | ((LOP << 24) | (LOP_SPEC << 16) | SPEC_DATA_SECTION) | |
229 | ||
230 | /* Must be a power of two. If you change this to be >= 64k, you need a | |
231 | new test-case; the ld test b-loc64k.d touches chunk-size problem areas. */ | |
232 | #define MMO_SEC_CONTENTS_CHUNK_SIZE (1 << 15) | |
233 | ||
234 | /* An arbitrary number for the maximum length section name size. */ | |
235 | #define MAX_SECTION_NAME_SIZE (1024 * 1024) | |
236 | ||
237 | /* A quite arbitrary number for the maximum length section size. */ | |
238 | #define MAX_ARTIFICIAL_SECTION_SIZE (1024 * 1024 * 1024) | |
239 | ||
240 | #define MMO3_WCHAR 0x80 | |
241 | #define MMO3_LEFT 0x40 | |
242 | #define MMO3_MIDDLE 0x20 | |
243 | #define MMO3_RIGHT 0x10 | |
244 | #define MMO3_TYPEBITS 0xf | |
245 | #define MMO3_REGQUAL_BITS 0xf | |
246 | #define MMO3_UNDEF 2 | |
247 | #define MMO3_DATA 8 | |
248 | #define MMO3_SYMBITS 0x2f | |
249 | ||
250 | /* Put these everywhere in new code. */ | |
251 | #define FATAL_DEBUG \ | |
252 | _bfd_abort (__FILE__, __LINE__, \ | |
253 | "Internal: Non-debugged code (test-case missing)") | |
254 | ||
255 | #define BAD_CASE(x) \ | |
256 | _bfd_abort (__FILE__, __LINE__, \ | |
257 | "bad case for " #x) | |
258 | ||
259 | enum mmo_sym_type { mmo_reg_sym, mmo_undef_sym, mmo_data_sym, mmo_abs_sym}; | |
260 | ||
261 | /* When scanning the mmo file, a linked list of mmo_symbol | |
262 | structures is built to represent the symbol table (if there is | |
263 | one). */ | |
264 | ||
265 | struct mmo_symbol | |
266 | { | |
267 | struct mmo_symbol *next; | |
278b4623 | 268 | char *name; |
3c3bdf30 NC |
269 | bfd_vma value; |
270 | enum mmo_sym_type sym_type; | |
271 | unsigned int serno; | |
272 | }; | |
273 | ||
274 | struct mmo_data_list_struct | |
275 | { | |
276 | struct mmo_data_list_struct *next; | |
277 | bfd_vma where; | |
278 | bfd_size_type size; | |
279 | bfd_size_type allocated_size; | |
280 | bfd_byte data[1]; | |
281 | }; | |
282 | ||
283 | typedef struct mmo_data_list_struct mmo_data_list_type; | |
284 | ||
285 | struct mmo_symbol_trie | |
286 | { | |
287 | struct mmo_symbol_trie *left; | |
288 | struct mmo_symbol_trie *right; | |
289 | struct mmo_symbol_trie *middle; | |
290 | ||
291 | bfd_byte symchar; | |
292 | ||
293 | /* A zero name means there's nothing here. */ | |
294 | struct mmo_symbol sym; | |
295 | }; | |
296 | ||
297 | /* The mmo tdata information. */ | |
298 | ||
299 | struct mmo_data_struct | |
300 | { | |
301 | struct mmo_symbol *symbols; | |
302 | struct mmo_symbol *symtail; | |
303 | asymbol *csymbols; | |
304 | ||
305 | /* File representation of time (NULL) when this file was created. */ | |
306 | bfd_byte created[4]; | |
307 | ||
308 | /* When we're reading bytes recursively, check this occasionally. | |
309 | Also holds write errors. */ | |
0a1b45a2 | 310 | bool have_error; |
3c3bdf30 NC |
311 | |
312 | /* Max symbol length that may appear in the lop_stab table. Note that | |
313 | this table might just hold a subset of symbols for not-really large | |
314 | programs, as it can only be 65536 * 4 bytes large. */ | |
315 | int max_symbol_length; | |
316 | ||
317 | /* Here's the symbol we build in lop_stab. */ | |
318 | char *lop_stab_symbol; | |
319 | ||
320 | /* Index into lop_stab_symbol for the next character when parsing the | |
321 | symbol information. */ | |
322 | int symbol_position; | |
323 | ||
324 | /* When creating arbitrary sections, we need to count section numbers. */ | |
325 | int sec_no; | |
326 | ||
327 | /* When writing or reading byte-wise, we need to count the bytes | |
328 | within a 32-bit word. */ | |
329 | int byte_no; | |
330 | ||
331 | /* We also need a buffer to hold the bytes we count reading or writing. */ | |
332 | bfd_byte buf[4]; | |
c287bfe4 HPN |
333 | |
334 | /* Whether we've calculated symbol consistency requirement yet. We do this | |
335 | when-needed, which must be at some time after all section | |
336 | contents is known. */ | |
0a1b45a2 | 337 | bool symbol_consistency_override_calculated; |
c287bfe4 HPN |
338 | |
339 | /* Whether to consistency-check symbol values, in particular "Main". */ | |
0a1b45a2 | 340 | bool ignore_symbol_consistency; |
3c3bdf30 NC |
341 | }; |
342 | ||
343 | typedef struct mmo_data_struct tdata_type; | |
344 | ||
345 | struct mmo_section_data_struct | |
346 | { | |
347 | mmo_data_list_type *head; | |
348 | mmo_data_list_type *tail; | |
349 | }; | |
350 | ||
68bfbfcc AM |
351 | #define mmo_section_data(sec) \ |
352 | ((struct mmo_section_data_struct *) (sec)->used_by_bfd) | |
353 | ||
3c3bdf30 NC |
354 | /* These structures are used in bfd_map_over_sections constructs. */ |
355 | ||
356 | /* Used when writing out sections; all but the register contents section | |
357 | which is stored in reg_section. */ | |
358 | struct mmo_write_sec_info | |
359 | { | |
360 | asection *reg_section; | |
0a1b45a2 | 361 | bool retval; |
3c3bdf30 NC |
362 | }; |
363 | ||
364 | /* Used when trying to find a section corresponding to addr. */ | |
365 | struct mmo_find_sec_info | |
366 | { | |
367 | asection *sec; | |
368 | bfd_vma addr; | |
369 | }; | |
370 | ||
0a1b45a2 | 371 | static bool mmo_bfd_copy_private_bfd_data (bfd *, bfd *); |
278b4623 HPN |
372 | static void mmo_write_section_unless_reg_contents (bfd *, asection *, void *); |
373 | static void mmo_find_sec_w_addr (bfd *, asection *, void *); | |
374 | static void mmo_find_sec_w_addr_grow (bfd *, asection *, void *); | |
375 | static asection *mmo_make_section (bfd *, const char *); | |
376 | static void mmo_get_symbol_info (bfd *, asymbol *, symbol_info *); | |
68ffbac6 | 377 | static void mmo_print_symbol (bfd *, void *, asymbol *, |
278b4623 HPN |
378 | bfd_print_symbol_type); |
379 | static void mmo_init (void); | |
0a1b45a2 AM |
380 | static bool mmo_mkobject (bfd *); |
381 | static bool mmo_scan (bfd *); | |
278b4623 HPN |
382 | static asection *mmo_decide_section (bfd *, bfd_vma); |
383 | static asection *mmo_get_generic_spec_data_section (bfd *, int); | |
384 | static asection *mmo_get_spec_section (bfd *, int); | |
2bda15d7 | 385 | static bfd_byte *mmo_get_loc (asection *, bfd_vma, unsigned int); |
cb001c0d | 386 | static bfd_cleanup mmo_object_p (bfd *); |
278b4623 | 387 | static void mmo_map_set_sizes (bfd *, asection *, void *); |
0a1b45a2 AM |
388 | static bool mmo_get_symbols (bfd *); |
389 | static bool mmo_create_symbol (bfd *, const char *, bfd_vma, | |
390 | enum mmo_sym_type, unsigned int); | |
391 | static bool mmo_get_section_contents (bfd *, asection *, void *, | |
392 | file_ptr, bfd_size_type); | |
278b4623 HPN |
393 | static long mmo_get_symtab_upper_bound (bfd *); |
394 | static long mmo_canonicalize_symtab (bfd *, asymbol **); | |
395 | static void mmo_get_symbol_info (bfd *, asymbol *, symbol_info *); | |
396 | static void mmo_print_symbol (bfd *, void *, asymbol *, | |
397 | bfd_print_symbol_type); | |
0a1b45a2 AM |
398 | static bool mmo_set_section_contents (bfd *, sec_ptr, const void *, |
399 | file_ptr, bfd_size_type); | |
a6b96beb | 400 | static int mmo_sizeof_headers (bfd *, struct bfd_link_info *); |
0a1b45a2 AM |
401 | static bool mmo_internal_write_header (bfd *); |
402 | static bool mmo_internal_write_post (bfd *, int, asection *); | |
403 | static bool mmo_internal_add_3_sym (bfd *, struct mmo_symbol_trie *, | |
278b4623 HPN |
404 | const struct mmo_symbol *); |
405 | static unsigned int mmo_internal_3_length (bfd *, struct mmo_symbol_trie *); | |
406 | static void mmo_internal_3_dump (bfd *, struct mmo_symbol_trie *); | |
407 | static void mmo_beb128_out (bfd *, int, int); | |
0a1b45a2 | 408 | static bool mmo_internal_write_section (bfd *, asection *); |
278b4623 HPN |
409 | static void mmo_write_tetra (bfd *, unsigned int); |
410 | static void mmo_write_tetra_raw (bfd *, unsigned int); | |
411 | static void mmo_write_octa (bfd *, bfd_vma); | |
412 | static void mmo_write_octa_raw (bfd *, bfd_vma); | |
0a1b45a2 AM |
413 | static bool mmo_write_chunk (bfd *, const bfd_byte *, unsigned int); |
414 | static bool mmo_flush_chunk (bfd *); | |
415 | static bool mmo_write_loc_chunk (bfd *, bfd_vma, const bfd_byte *, | |
416 | unsigned int, bfd_vma *); | |
417 | static bool mmo_write_chunk_list (bfd *, mmo_data_list_type *); | |
418 | static bool mmo_write_loc_chunk_list (bfd *, mmo_data_list_type *); | |
419 | static bool mmo_write_symbols_and_terminator (bfd *); | |
278b4623 HPN |
420 | static flagword mmo_sec_flags_from_bfd_flags (flagword); |
421 | static flagword bfd_sec_flags_from_mmo_flags (flagword); | |
422 | static bfd_byte mmo_get_byte (bfd *); | |
423 | static void mmo_write_byte (bfd *, bfd_byte); | |
0a1b45a2 | 424 | static bool mmo_new_section_hook (bfd *, asection *); |
278b4623 | 425 | static int mmo_sort_mmo_symbols (const void *, const void *); |
0a1b45a2 AM |
426 | static bool mmo_write_object_contents (bfd *); |
427 | static bool mmo_write_section_description (bfd *, asection *); | |
428 | static bool mmo_has_leading_or_trailing_zero_tetra_p (bfd *, asection *); | |
3c3bdf30 | 429 | |
865dcc8a AM |
430 | static const char |
431 | valid_mmo_symbol_character_set[] = | |
432 | { | |
433 | 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', | |
434 | 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', | |
435 | 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', | |
436 | 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', | |
437 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', | |
438 | ':', '_', 126, 127, 128, 129, | |
439 | 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, | |
440 | 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, | |
441 | 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, | |
442 | 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, | |
443 | 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, | |
444 | 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, | |
445 | 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, | |
446 | 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, | |
447 | 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, | |
448 | 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, | |
449 | 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, | |
450 | 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, | |
451 | 250, 251, 252, 253, 254, 255, | |
452 | 0 | |
453 | }; | |
3c3bdf30 NC |
454 | |
455 | ||
456 | /* Get section SECNAME or create one if it doesn't exist. When creating | |
457 | one, new memory for the name is allocated. */ | |
458 | ||
459 | static asection * | |
278b4623 | 460 | mmo_make_section (bfd *abfd, const char *secname) |
3c3bdf30 NC |
461 | { |
462 | asection *sec = bfd_get_section_by_name (abfd, secname); | |
463 | ||
464 | if (sec == NULL) | |
465 | { | |
466 | char *newsecname = strdup (secname); | |
467 | ||
468 | if (newsecname == NULL) | |
469 | { | |
4eca0228 | 470 | _bfd_error_handler |
695344c0 | 471 | /* xgettext:c-format */ |
38f14ab8 | 472 | (_("%pB: no core to allocate section name %s"), |
dae82561 | 473 | abfd, secname); |
3c3bdf30 NC |
474 | bfd_set_error (bfd_error_system_call); |
475 | return NULL; | |
476 | } | |
477 | sec = bfd_make_section (abfd, newsecname); | |
478 | } | |
479 | ||
480 | return sec; | |
481 | } | |
482 | ||
483 | /* Nothing to do, but keep as a placeholder if we need it. | |
484 | Note that state that might differ between bfd:s must not be initialized | |
485 | here, nor must it be static. Add it to tdata information instead. */ | |
486 | ||
487 | static void | |
278b4623 | 488 | mmo_init (void) |
3c3bdf30 | 489 | { |
0a1b45a2 | 490 | static bool inited = false; |
3c3bdf30 | 491 | |
82e51918 | 492 | if (inited) |
930b4cb2 | 493 | return; |
0a1b45a2 | 494 | inited = true; |
3c3bdf30 NC |
495 | } |
496 | ||
497 | /* Check whether an existing file is an mmo file. */ | |
498 | ||
cb001c0d | 499 | static bfd_cleanup |
278b4623 | 500 | mmo_object_p (bfd *abfd) |
3c3bdf30 NC |
501 | { |
502 | struct stat statbuf; | |
503 | bfd_byte b[4]; | |
504 | ||
505 | mmo_init (); | |
506 | ||
507 | if (bfd_stat (abfd, &statbuf) < 0 | |
508 | || bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 | |
509 | || bfd_bread (b, 4, abfd) != 4) | |
510 | goto bad_final; | |
511 | ||
512 | /* All mmo files are a multiple of four bytes long. | |
513 | Only recognize version one. */ | |
514 | if ((statbuf.st_size % 4) != 0 | |
515 | || b[0] != LOP || b[1] != LOP_PRE || b[2] != 1) | |
516 | goto bad_format; | |
517 | ||
518 | /* Get the last 32-bit word. */ | |
519 | if (bfd_seek (abfd, (file_ptr) statbuf.st_size - 4, SEEK_SET) != 0 | |
520 | || bfd_bread (b, 4, abfd) != 4) | |
521 | goto bad_final; | |
522 | ||
523 | /* Check if the file ends in a lop_end lopcode. */ | |
524 | if (b[0] != LOP || b[1] != LOP_END || ! mmo_mkobject (abfd)) | |
525 | goto bad_format; | |
526 | ||
527 | /* Compute an upper bound on the max symbol length. Not really | |
528 | important as all of the symbol information can only be 256k. */ | |
529 | abfd->tdata.mmo_data->max_symbol_length = (b[2] * 256 + b[3]) * 4; | |
530 | abfd->tdata.mmo_data->lop_stab_symbol | |
531 | = bfd_malloc (abfd->tdata.mmo_data->max_symbol_length + 1); | |
532 | ||
533 | if (abfd->tdata.mmo_data->lop_stab_symbol == NULL) | |
534 | { | |
4eca0228 | 535 | _bfd_error_handler |
695344c0 | 536 | /* xgettext:c-format */ |
38f14ab8 | 537 | (_("%pB: no core to allocate a symbol %d bytes long"), |
dae82561 | 538 | abfd, abfd->tdata.mmo_data->max_symbol_length); |
3c3bdf30 NC |
539 | goto bad_final; |
540 | } | |
541 | ||
542 | /* Read in everything. */ | |
543 | if (! mmo_scan (abfd)) | |
544 | goto bad_format_free; | |
545 | ||
546 | if (abfd->symcount > 0) | |
547 | abfd->flags |= HAS_SYMS; | |
548 | ||
549 | /* You'll have to tweak this if you want to use this format for other | |
550 | arches (not recommended due to its small-size limitations). Look at | |
551 | the ELF format for how to make it target-generic. */ | |
552 | if (! bfd_default_set_arch_mach (abfd, bfd_arch_mmix, 0)) | |
553 | goto bad_format_free; | |
554 | ||
cb001c0d | 555 | return _bfd_no_cleanup; |
3c3bdf30 NC |
556 | |
557 | bad_format_free: | |
558 | free (abfd->tdata.mmo_data->lop_stab_symbol); | |
559 | bad_format: | |
560 | bfd_set_error (bfd_error_wrong_format); | |
561 | bad_final: | |
562 | return NULL; | |
563 | } | |
564 | ||
565 | /* Set up the mmo tdata information. */ | |
566 | ||
0a1b45a2 | 567 | static bool |
278b4623 | 568 | mmo_mkobject (bfd *abfd) |
3c3bdf30 NC |
569 | { |
570 | mmo_init (); | |
571 | ||
572 | if (abfd->tdata.mmo_data == NULL) | |
573 | { | |
574 | time_t created; | |
575 | ||
576 | /* All fields are zero-initialized, so we don't have to explicitly | |
577 | initialize most. */ | |
f24bdec4 | 578 | tdata_type *tdata = (tdata_type *) bfd_zalloc (abfd, sizeof (tdata_type)); |
3c3bdf30 | 579 | if (tdata == NULL) |
0a1b45a2 | 580 | return false; |
3c3bdf30 NC |
581 | |
582 | created = time (NULL); | |
583 | bfd_put_32 (abfd, created, tdata->created); | |
584 | ||
585 | abfd->tdata.mmo_data = tdata; | |
586 | } | |
587 | ||
0a1b45a2 | 588 | return true; |
3c3bdf30 NC |
589 | } |
590 | ||
0a1b45a2 | 591 | static bool |
c287bfe4 HPN |
592 | mmo_section_has_contents (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p ATTRIBUTE_UNUSED) |
593 | { | |
594 | /* The point is to match what --extract-symbols does (well, negated). */ | |
fd361982 | 595 | return bfd_section_size (sec) != 0; |
c287bfe4 HPN |
596 | } |
597 | ||
598 | /* Find out whether we should omit symbol consistency checks for this | |
599 | bfd and cache the value. | |
600 | ||
601 | This function must only be called when all section contents is | |
602 | known. However, calculating symbol consistency at the time the | |
603 | private BFD data is initialized is too late for some uses. */ | |
604 | ||
0a1b45a2 | 605 | static bool |
c287bfe4 HPN |
606 | mmo_ignore_symbol_consistency (bfd *abfd) |
607 | { | |
608 | if (!abfd->tdata.mmo_data->symbol_consistency_override_calculated) | |
609 | { | |
610 | abfd->tdata.mmo_data->ignore_symbol_consistency = | |
611 | bfd_sections_find_if (abfd, mmo_section_has_contents, NULL) == NULL; | |
612 | ||
0a1b45a2 | 613 | abfd->tdata.mmo_data->symbol_consistency_override_calculated = true; |
c287bfe4 HPN |
614 | } |
615 | ||
616 | return abfd->tdata.mmo_data->ignore_symbol_consistency; | |
617 | } | |
618 | ||
0a1b45a2 | 619 | static bool |
278b4623 | 620 | mmo_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3c3bdf30 NC |
621 | { |
622 | if (bfd_get_flavour (ibfd) != bfd_target_mmo_flavour | |
623 | || bfd_get_flavour (obfd) != bfd_target_mmo_flavour) | |
0a1b45a2 | 624 | return true; |
3c3bdf30 NC |
625 | |
626 | /* Copy the time the copied-from file was created. If people want the | |
627 | time the file was last *modified*, they have that in the normal file | |
628 | information. */ | |
629 | memcpy (obfd->tdata.mmo_data->created, ibfd->tdata.mmo_data->created, | |
630 | sizeof (obfd->tdata.mmo_data->created)); | |
0a1b45a2 | 631 | return true; |
3c3bdf30 NC |
632 | } |
633 | ||
634 | /* Helper functions for mmo_decide_section, used through | |
635 | bfd_map_over_sections. */ | |
636 | ||
637 | static void | |
278b4623 | 638 | mmo_find_sec_w_addr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p) |
3c3bdf30 NC |
639 | { |
640 | struct mmo_find_sec_info *infop = (struct mmo_find_sec_info *) p; | |
fd361982 | 641 | bfd_vma vma = bfd_section_vma (sec); |
3c3bdf30 NC |
642 | |
643 | /* Ignore sections that aren't loaded. */ | |
fd361982 | 644 | if ((bfd_section_flags (sec) & (SEC_LOAD | SEC_ALLOC)) |
3c3bdf30 NC |
645 | != (SEC_LOAD | SEC_ALLOC)) |
646 | return; | |
647 | ||
eea6121a | 648 | if (infop->addr >= vma && infop->addr < vma + sec->size) |
3c3bdf30 NC |
649 | infop->sec = sec; |
650 | } | |
651 | ||
652 | static void | |
278b4623 | 653 | mmo_find_sec_w_addr_grow (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p) |
3c3bdf30 NC |
654 | { |
655 | struct mmo_find_sec_info *infop = (struct mmo_find_sec_info *) p; | |
fd361982 | 656 | bfd_vma vma = bfd_section_vma (sec); |
3c3bdf30 NC |
657 | |
658 | /* Ignore sections that aren't loaded. */ | |
fd361982 | 659 | if ((bfd_section_flags (sec) & (SEC_LOAD | SEC_ALLOC)) |
3c3bdf30 NC |
660 | != (SEC_LOAD | SEC_ALLOC)) |
661 | return; | |
662 | ||
663 | if (infop->addr >= vma && infop->addr < vma + MAX_ARTIFICIAL_SECTION_SIZE) | |
664 | infop->sec = sec; | |
665 | } | |
666 | ||
667 | /* Find a section that corresponds to a VMA. Automatically create .text | |
668 | or .data and set current section to it, depending on what vma. If we | |
669 | can't deduce a section, make one up as ".MMIX.sec.N", where N is an | |
670 | increasing number. */ | |
671 | ||
672 | static asection * | |
278b4623 | 673 | mmo_decide_section (bfd *abfd, bfd_vma vma) |
3c3bdf30 NC |
674 | { |
675 | asection *sec = NULL; | |
676 | char sec_name[sizeof (".MMIX.sec.") + 20]; | |
677 | struct mmo_find_sec_info info; | |
678 | ||
679 | info.addr = vma; | |
680 | info.sec = NULL; | |
681 | ||
682 | /* First see if there's a section that would match exactly. */ | |
683 | bfd_map_over_sections (abfd, mmo_find_sec_w_addr, &info); | |
684 | ||
685 | if (info.sec != NULL) | |
686 | return info.sec; | |
687 | ||
688 | /* If there's no such section, try and expand one of the existing ones, | |
689 | up to a limit. Make sure we have .text and .data before we try that; | |
690 | create them corresponding to expected addresses and set flags to make | |
691 | them match the "loaded and with contents" expectation. */ | |
692 | if ((vma >> 56) == 0) | |
693 | { | |
694 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
695 | ||
696 | if (sec == NULL) | |
697 | return NULL; | |
698 | ||
fd361982 | 699 | if (!sec->user_set_vma && !bfd_set_section_vma (sec, vma)) |
a253d456 NC |
700 | return NULL; |
701 | ||
fd361982 AM |
702 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
703 | | SEC_CODE | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
704 | return NULL; |
705 | } | |
706 | else if ((vma >> 56) == 0x20) | |
707 | { | |
708 | sec = bfd_make_section_old_way (abfd, MMO_DATA_SECTION_NAME); | |
709 | ||
710 | if (sec == NULL) | |
711 | return NULL; | |
712 | ||
fd361982 | 713 | if (!sec->user_set_vma && !bfd_set_section_vma (sec, vma)) |
a253d456 NC |
714 | return NULL; |
715 | ||
fd361982 AM |
716 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
717 | | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
718 | return NULL; |
719 | } | |
720 | ||
721 | bfd_map_over_sections (abfd, mmo_find_sec_w_addr_grow, &info); | |
722 | ||
723 | if (info.sec != NULL) | |
724 | return info.sec; | |
725 | ||
726 | /* If there's still no suitable section, make a new one. */ | |
727 | sprintf (sec_name, ".MMIX.sec.%d", abfd->tdata.mmo_data->sec_no++); | |
728 | sec = mmo_make_section (abfd, sec_name); | |
a253d456 | 729 | |
fd361982 | 730 | if (!sec->user_set_vma && !bfd_set_section_vma (sec, vma)) |
a253d456 | 731 | return NULL; |
3c3bdf30 | 732 | |
fd361982 AM |
733 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
734 | | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
735 | return NULL; |
736 | return sec; | |
737 | } | |
738 | ||
739 | /* Xor in a 64-bit value VALUE at VMA. */ | |
740 | ||
0a0ff9d9 | 741 | static inline bfd_byte * |
278b4623 | 742 | mmo_xore_64 (asection *sec, bfd_vma vma, bfd_vma value) |
3c3bdf30 NC |
743 | { |
744 | bfd_byte *loc = mmo_get_loc (sec, vma, 8); | |
0a0ff9d9 AM |
745 | if (loc) |
746 | { | |
747 | bfd_vma prev = bfd_get_64 (sec->owner, loc); | |
3c3bdf30 | 748 | |
0a0ff9d9 AM |
749 | value ^= prev; |
750 | bfd_put_64 (sec->owner, value, loc); | |
751 | } | |
752 | return loc; | |
3c3bdf30 NC |
753 | } |
754 | ||
755 | /* Xor in a 32-bit value VALUE at VMA. */ | |
756 | ||
0a0ff9d9 | 757 | static inline bfd_byte * |
278b4623 | 758 | mmo_xore_32 (asection *sec, bfd_vma vma, unsigned int value) |
3c3bdf30 NC |
759 | { |
760 | bfd_byte *loc = mmo_get_loc (sec, vma, 4); | |
0a0ff9d9 AM |
761 | if (loc) |
762 | { | |
763 | unsigned int prev = bfd_get_32 (sec->owner, loc); | |
3c3bdf30 | 764 | |
0a0ff9d9 AM |
765 | value ^= prev; |
766 | bfd_put_32 (sec->owner, value, loc); | |
767 | } | |
768 | return loc; | |
3c3bdf30 NC |
769 | } |
770 | ||
771 | /* Xor in a 16-bit value VALUE at VMA. */ | |
772 | ||
0a0ff9d9 | 773 | static inline bfd_byte * |
278b4623 | 774 | mmo_xore_16 (asection *sec, bfd_vma vma, unsigned int value) |
3c3bdf30 NC |
775 | { |
776 | bfd_byte *loc = mmo_get_loc (sec, vma, 2); | |
0a0ff9d9 AM |
777 | if (loc) |
778 | { | |
779 | unsigned int prev = bfd_get_16 (sec->owner, loc); | |
3c3bdf30 | 780 | |
0a0ff9d9 AM |
781 | value ^= prev; |
782 | bfd_put_16 (sec->owner, value, loc); | |
783 | } | |
784 | return loc; | |
3c3bdf30 NC |
785 | } |
786 | ||
787 | /* Write a 32-bit word to output file, no lop_quote generated. */ | |
788 | ||
42eec46f | 789 | static inline void |
278b4623 | 790 | mmo_write_tetra_raw (bfd *abfd, unsigned int value) |
3c3bdf30 NC |
791 | { |
792 | bfd_byte buf[4]; | |
793 | ||
794 | bfd_put_32 (abfd, value, buf); | |
795 | ||
278b4623 | 796 | if (bfd_bwrite (buf, 4, abfd) != 4) |
0a1b45a2 | 797 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
798 | } |
799 | ||
800 | /* Write a 32-bit word to output file; lop_quote if necessary. */ | |
801 | ||
42eec46f | 802 | static inline void |
278b4623 | 803 | mmo_write_tetra (bfd *abfd, unsigned int value) |
3c3bdf30 NC |
804 | { |
805 | if (((value >> 24) & 0xff) == LOP) | |
806 | mmo_write_tetra_raw (abfd, LOP_QUOTE_NEXT); | |
807 | ||
808 | mmo_write_tetra_raw (abfd, value); | |
809 | } | |
810 | ||
811 | /* Write a 64-bit word to output file, perhaps with lop_quoting. */ | |
812 | ||
42eec46f | 813 | static inline void |
278b4623 | 814 | mmo_write_octa (bfd *abfd, bfd_vma value) |
3c3bdf30 NC |
815 | { |
816 | mmo_write_tetra (abfd, (unsigned int) (value >> 32)); | |
817 | mmo_write_tetra (abfd, (unsigned int) value); | |
818 | } | |
819 | ||
820 | /* Write a 64-bit word to output file, without lop_quoting. */ | |
821 | ||
42eec46f | 822 | static inline void |
278b4623 | 823 | mmo_write_octa_raw (bfd *abfd, bfd_vma value) |
3c3bdf30 NC |
824 | { |
825 | mmo_write_tetra_raw (abfd, (unsigned int) (value >> 32)); | |
826 | mmo_write_tetra_raw (abfd, (unsigned int) value); | |
827 | } | |
828 | ||
dfa36a69 HPN |
829 | /* Write quoted contents. Intended to be called multiple times in |
830 | sequence, followed by a call to mmo_flush_chunk. */ | |
3c3bdf30 | 831 | |
42eec46f | 832 | static inline bool |
278b4623 | 833 | mmo_write_chunk (bfd *abfd, const bfd_byte *loc, unsigned int len) |
3c3bdf30 | 834 | { |
0a1b45a2 | 835 | bool retval = true; |
ed905580 | 836 | struct mmo_data_struct *mmop = abfd->tdata.mmo_data; |
dfa36a69 HPN |
837 | |
838 | /* Fill up a tetra from bytes remaining from a previous chunk. */ | |
ed905580 | 839 | if (mmop->byte_no != 0) |
dfa36a69 | 840 | { |
ed905580 | 841 | while (mmop->byte_no < 4 && len != 0) |
dfa36a69 | 842 | { |
ed905580 | 843 | mmop->buf[mmop->byte_no++] = *loc++; |
dfa36a69 HPN |
844 | len--; |
845 | } | |
846 | ||
ed905580 | 847 | if (mmop->byte_no == 4) |
dfa36a69 | 848 | { |
ed905580 HPN |
849 | mmo_write_tetra (abfd, bfd_get_32 (abfd, mmop->buf)); |
850 | mmop->byte_no = 0; | |
dfa36a69 HPN |
851 | } |
852 | } | |
3c3bdf30 NC |
853 | |
854 | while (len >= 4) | |
855 | { | |
856 | if (loc[0] == LOP) | |
857 | mmo_write_tetra_raw (abfd, LOP_QUOTE_NEXT); | |
858 | ||
82e51918 | 859 | retval = (retval |
ed905580 | 860 | && ! mmop->have_error |
278b4623 | 861 | && 4 == bfd_bwrite (loc, 4, abfd)); |
3c3bdf30 NC |
862 | |
863 | loc += 4; | |
864 | len -= 4; | |
865 | } | |
866 | ||
867 | if (len) | |
868 | { | |
1218d67d HPN |
869 | /* We must have flushed a previous remainder if we get one from |
870 | this chunk too. */ | |
871 | BFD_ASSERT (mmop->byte_no == 0); | |
ed905580 HPN |
872 | memcpy (mmop->buf, loc, len); |
873 | mmop->byte_no = len; | |
3c3bdf30 NC |
874 | } |
875 | ||
82e51918 | 876 | if (! retval) |
0a1b45a2 | 877 | mmop->have_error = true; |
3c3bdf30 NC |
878 | return retval; |
879 | } | |
880 | ||
dfa36a69 HPN |
881 | /* Flush remaining bytes, from a previous mmo_write_chunk, zero-padded to |
882 | 4 bytes. */ | |
883 | ||
42eec46f | 884 | static inline bool |
278b4623 | 885 | mmo_flush_chunk (bfd *abfd) |
dfa36a69 HPN |
886 | { |
887 | if (abfd->tdata.mmo_data->byte_no != 0) | |
888 | { | |
889 | memset (abfd->tdata.mmo_data->buf + abfd->tdata.mmo_data->byte_no, | |
890 | 0, 4 - abfd->tdata.mmo_data->byte_no); | |
891 | mmo_write_tetra (abfd, | |
892 | bfd_get_32 (abfd, abfd->tdata.mmo_data->buf)); | |
893 | abfd->tdata.mmo_data->byte_no = 0; | |
894 | } | |
895 | ||
82e51918 | 896 | return ! abfd->tdata.mmo_data->have_error; |
dfa36a69 HPN |
897 | } |
898 | ||
3c3bdf30 NC |
899 | /* Same, but from a list. */ |
900 | ||
42eec46f | 901 | static inline bool |
278b4623 | 902 | mmo_write_chunk_list (bfd *abfd, mmo_data_list_type *datap) |
3c3bdf30 NC |
903 | { |
904 | for (; datap != NULL; datap = datap->next) | |
905 | if (! mmo_write_chunk (abfd, datap->data, datap->size)) | |
0a1b45a2 | 906 | return false; |
3c3bdf30 | 907 | |
dfa36a69 | 908 | return mmo_flush_chunk (abfd); |
3c3bdf30 NC |
909 | } |
910 | ||
dfa36a69 HPN |
911 | /* Write a lop_loc and some contents. A caller needs to call |
912 | mmo_flush_chunk after calling this function. The location is only | |
913 | output if different than *LAST_VMAP, which is updated after this call. */ | |
3c3bdf30 | 914 | |
0a1b45a2 | 915 | static bool |
278b4623 HPN |
916 | mmo_write_loc_chunk (bfd *abfd, bfd_vma vma, const bfd_byte *loc, |
917 | unsigned int len, bfd_vma *last_vmap) | |
3c3bdf30 | 918 | { |
1218d67d HPN |
919 | /* Find an initial and trailing section of zero (aligned) tetras; we don't |
920 | need to write out zeros. FIXME: When we do this, we should emit | |
921 | section size and address specifiers, else objcopy can't always perform | |
922 | an identity translation. Only do this if we *don't* have left-over | |
923 | data from a previous write (and will not add any) or else the vma of | |
924 | this chunk is *not* the next address, because then data isn't | |
925 | tetrabyte-aligned and we're concatenating to that left-over data. */ | |
926 | ||
927 | if ((vma & 3) == 0 | |
928 | && (abfd->tdata.mmo_data->byte_no == 0 || vma != *last_vmap)) | |
3c3bdf30 | 929 | { |
1218d67d | 930 | while (len > 4 && bfd_get_32 (abfd, loc) == 0) |
8d28f606 HPN |
931 | { |
932 | vma += 4; | |
933 | len -= 4; | |
934 | loc += 4; | |
935 | } | |
3c3bdf30 | 936 | |
1218d67d HPN |
937 | if ((len & 3) == 0) |
938 | while (len > 4 && bfd_get_32 (abfd, loc + len - 4) == 0) | |
939 | len -= 4; | |
8d28f606 | 940 | } |
3c3bdf30 | 941 | |
dfa36a69 HPN |
942 | /* Only write out the location if it's different than the one the caller |
943 | (supposedly) previously handled, accounting for omitted leading zeros. */ | |
944 | if (vma != *last_vmap) | |
945 | { | |
946 | /* We might be in the middle of a sequence. */ | |
947 | mmo_flush_chunk (abfd); | |
948 | ||
1218d67d HPN |
949 | /* This should not happen during normal usage, but can presumably |
950 | happen with an erroneous linker-script, so handle gracefully. | |
951 | Avoid Knuth-specific terms in the message, such as "tetrabyte". | |
952 | Note that this function will get non-4-multiple lengths and | |
953 | unaligned vmas but those come in tuples (mostly pairs) and are | |
954 | continuous (i.e. the if-condition above false) and they are | |
955 | group-wise aligned. */ | |
956 | if ((vma & 3) != 0) | |
957 | { | |
4eca0228 | 958 | _bfd_error_handler |
695344c0 | 959 | /* xgettext:c-format */ |
871b3ab2 | 960 | (_("%pB: attempt to emit contents at non-multiple-of-4" |
2dcf00ce AM |
961 | " address %#" PRIx64 ""), |
962 | abfd, (uint64_t) vma); | |
1218d67d | 963 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 964 | return false; |
1218d67d HPN |
965 | } |
966 | ||
dfa36a69 | 967 | /* We always write the location as 64 bits; no use saving bytes |
07d6d2b8 | 968 | here. */ |
dfa36a69 HPN |
969 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_LOC << 16) | 2); |
970 | mmo_write_octa_raw (abfd, vma); | |
971 | } | |
972 | ||
973 | /* Update to reflect end of this chunk, with trailing zeros omitted. */ | |
974 | *last_vmap = vma + len; | |
975 | ||
82e51918 AM |
976 | return (! abfd->tdata.mmo_data->have_error |
977 | && mmo_write_chunk (abfd, loc, len)); | |
3c3bdf30 NC |
978 | } |
979 | ||
980 | /* Same, but from a list. */ | |
981 | ||
42eec46f | 982 | static inline bool |
278b4623 | 983 | mmo_write_loc_chunk_list (bfd *abfd, mmo_data_list_type *datap) |
3c3bdf30 | 984 | { |
dfa36a69 HPN |
985 | /* Get an address different than the address of the first chunk. */ |
986 | bfd_vma last_vma = datap ? datap->where - 1 : 0; | |
987 | ||
3c3bdf30 | 988 | for (; datap != NULL; datap = datap->next) |
dfa36a69 HPN |
989 | if (! mmo_write_loc_chunk (abfd, datap->where, datap->data, datap->size, |
990 | &last_vma)) | |
0a1b45a2 | 991 | return false; |
3c3bdf30 | 992 | |
dfa36a69 | 993 | return mmo_flush_chunk (abfd); |
3c3bdf30 NC |
994 | } |
995 | ||
996 | /* Make a .MMIX.spec_data.N section. */ | |
997 | ||
998 | static asection * | |
278b4623 | 999 | mmo_get_generic_spec_data_section (bfd *abfd, int spec_data_number) |
3c3bdf30 NC |
1000 | { |
1001 | asection *sec; | |
1002 | char secname[sizeof (MMIX_OTHER_SPEC_SECTION_PREFIX) + 20] | |
1003 | = MMIX_OTHER_SPEC_SECTION_PREFIX; | |
1004 | ||
1005 | sprintf (secname + strlen (MMIX_OTHER_SPEC_SECTION_PREFIX), | |
1006 | "%d", spec_data_number); | |
1007 | ||
1008 | sec = mmo_make_section (abfd, secname); | |
1009 | ||
1010 | return sec; | |
1011 | } | |
1012 | ||
1013 | /* Make a special section for SPEC_DATA_NUMBER. If it is the one we use | |
1014 | ourselves, parse some of its data to get at the section name. */ | |
1015 | ||
1016 | static asection * | |
278b4623 | 1017 | mmo_get_spec_section (bfd *abfd, int spec_data_number) |
3c3bdf30 | 1018 | { |
f075ee0c | 1019 | char *secname; |
3c3bdf30 NC |
1020 | asection *sec; |
1021 | bfd_byte buf[4]; | |
1022 | unsigned int secname_length; | |
1023 | unsigned int i; | |
1024 | bfd_vma section_length; | |
1025 | bfd_vma section_vma; | |
1026 | mmo_data_list_type *loc; | |
1027 | flagword flags; | |
1028 | long orig_pos; | |
1029 | ||
1030 | /* If this isn't the "special" special data, then make a placeholder | |
1031 | section. */ | |
1032 | if (spec_data_number != SPEC_DATA_SECTION) | |
1033 | return mmo_get_generic_spec_data_section (abfd, spec_data_number); | |
1034 | ||
1035 | /* Seek back to this position if there was a format error. */ | |
1036 | orig_pos = bfd_tell (abfd); | |
1037 | ||
1038 | /* Read the length (in 32-bit words). */ | |
1039 | if (bfd_bread (buf, 4, abfd) != 4) | |
1040 | goto format_error; | |
1041 | ||
1042 | if (buf[0] == LOP) | |
1043 | { | |
1044 | if (buf[1] != LOP_QUOTE) | |
1045 | goto format_error; | |
1046 | ||
1047 | if (bfd_bread (buf, 4, abfd) != 4) | |
1048 | goto format_error; | |
1049 | } | |
1050 | ||
1051 | /* We don't care to keep the name length accurate. It's | |
1052 | zero-terminated. */ | |
1053 | secname_length = bfd_get_32 (abfd, buf) * 4; | |
1054 | ||
1055 | /* Check section name length for sanity. */ | |
1056 | if (secname_length > MAX_SECTION_NAME_SIZE) | |
1057 | goto format_error; | |
1058 | ||
1059 | /* This should be free'd regardless if a section is created. */ | |
1060 | secname = bfd_malloc (secname_length + 1); | |
1061 | secname[secname_length] = 0; | |
1062 | ||
1063 | for (i = 0; i < secname_length / 4; i++) | |
1064 | { | |
1065 | if (bfd_bread (secname + i * 4, 4, abfd) != 4) | |
1066 | goto format_error_free; | |
1067 | ||
f075ee0c | 1068 | if (secname[i * 4] == (char) LOP) |
3c3bdf30 NC |
1069 | { |
1070 | /* A bit of overkill, but we handle char 0x98 in a section name, | |
1071 | and recognize misparsing. */ | |
1072 | if (secname[i * 4 + 1] != LOP_QUOTE | |
1073 | || bfd_bread (secname + i * 4, 4, abfd) != 4) | |
1074 | /* Whoops. We thought this was a name, and now we found a | |
1075 | non-lop_quote lopcode before we parsed the whole length of | |
1076 | the name. Signal end-of-file in the same manner. */ | |
1077 | goto format_error_free; | |
1078 | } | |
1079 | } | |
1080 | ||
1081 | /* Get the section flags. */ | |
1082 | if (bfd_bread (buf, 4, abfd) != 4 | |
1083 | || (buf[0] == LOP | |
1084 | && (buf[1] != LOP_QUOTE || bfd_bread (buf, 4, abfd) != 4))) | |
1085 | goto format_error_free; | |
1086 | ||
1087 | flags = bfd_get_32 (abfd, buf); | |
1088 | ||
1089 | /* Get the section length. */ | |
1090 | if (bfd_bread (buf, 4, abfd) != 4 | |
1091 | || (buf[0] == LOP | |
1092 | && (buf[1] != LOP_QUOTE || bfd_bread (buf, 4, abfd) != 4))) | |
1093 | goto format_error_free; | |
1094 | ||
1095 | section_length = (bfd_vma) bfd_get_32 (abfd, buf) << 32; | |
1096 | ||
1097 | /* That's the first, high-part. Now get the low part. */ | |
1098 | ||
1099 | if (bfd_bread (buf, 4, abfd) != 4 | |
1100 | || (buf[0] == LOP | |
1101 | && (buf[1] != LOP_QUOTE || bfd_bread (buf, 4, abfd) != 4))) | |
1102 | goto format_error_free; | |
1103 | ||
1104 | section_length |= (bfd_vma) bfd_get_32 (abfd, buf); | |
1105 | ||
1106 | /* Check the section length for sanity. */ | |
1107 | if (section_length > MAX_ARTIFICIAL_SECTION_SIZE) | |
1108 | goto format_error_free; | |
1109 | ||
1110 | /* Get the section VMA. */ | |
1111 | if (bfd_bread (buf, 4, abfd) != 4 | |
1112 | || (buf[0] == LOP | |
1113 | && (buf[1] != LOP_QUOTE || bfd_bread (buf, 4, abfd) != 4))) | |
1114 | goto format_error_free; | |
1115 | ||
1116 | section_vma = (bfd_vma) bfd_get_32 (abfd, buf) << 32; | |
1117 | ||
1118 | /* That's the first, high-part. Now get the low part. */ | |
1119 | if (bfd_bread (buf, 4, abfd) != 4 | |
1120 | || (buf[0] == LOP | |
1121 | && (buf[1] != LOP_QUOTE || bfd_bread (buf, 4, abfd) != 4))) | |
1122 | goto format_error_free; | |
1123 | ||
1124 | section_vma |= (bfd_vma) bfd_get_32 (abfd, buf); | |
1125 | ||
1126 | sec = mmo_make_section (abfd, secname); | |
1127 | free (secname); | |
1128 | if (sec == NULL) | |
1129 | goto format_error; | |
1130 | ||
1131 | /* We allocate a buffer here for the advertised size, with head room for | |
1132 | tetrabyte alignment. */ | |
1133 | loc = bfd_zmalloc (section_length + 3 | |
1134 | + sizeof (struct mmo_data_list_struct)); | |
1135 | if (loc == NULL) | |
1136 | goto format_error; | |
1137 | ||
1138 | /* Use a TETRA-rounded size for the allocated buffer; we set the | |
1139 | "visible" section size below. */ | |
1140 | loc->size = (section_length + 3) & ~3; | |
1141 | ||
1142 | /* Add in the section flags we found to those bfd entered during this | |
1143 | process and set the contents. */ | |
fd361982 AM |
1144 | if (!bfd_set_section_flags (sec, |
1145 | (bfd_sec_flags_from_mmo_flags (flags) | |
1146 | | bfd_section_flags (sec) | |
1147 | | (section_length != 0 ? SEC_HAS_CONTENTS : 0))) | |
1148 | || !bfd_set_section_size (sec, sec->size + section_length) | |
3c3bdf30 | 1149 | /* Set VMA only for the first occurrence. */ |
fd361982 | 1150 | || (!sec->user_set_vma && !bfd_set_section_vma (sec, section_vma))) |
3c3bdf30 NC |
1151 | { |
1152 | /* If we get an error for any of the calls above, signal more than | |
1153 | just a format error for the spec section. */ | |
1154 | return NULL; | |
1155 | } | |
1156 | ||
1157 | loc->next = NULL; | |
68bfbfcc AM |
1158 | if (mmo_section_data (sec)->tail != NULL) |
1159 | mmo_section_data (sec)->tail->next = loc; | |
3c3bdf30 | 1160 | else |
68bfbfcc AM |
1161 | mmo_section_data (sec)->head = loc; |
1162 | mmo_section_data (sec)->tail = loc; | |
3c3bdf30 NC |
1163 | loc->where = section_vma; |
1164 | ||
1165 | return sec; | |
1166 | ||
1167 | format_error_free: | |
1168 | free (secname); | |
1169 | format_error: | |
1170 | if (bfd_seek (abfd, orig_pos, SEEK_SET) != 0) | |
1171 | return NULL; | |
1172 | ||
1173 | return mmo_get_generic_spec_data_section (abfd, spec_data_number); | |
1174 | } | |
1175 | ||
1176 | /* Read a byte, but read from file in multiples of 32-bit words. */ | |
1177 | ||
1178 | static bfd_byte | |
278b4623 | 1179 | mmo_get_byte (bfd *abfd) |
3c3bdf30 NC |
1180 | { |
1181 | bfd_byte retval; | |
1182 | ||
1183 | if (abfd->tdata.mmo_data->byte_no == 0) | |
1184 | { | |
82e51918 | 1185 | if (! abfd->tdata.mmo_data->have_error |
3c3bdf30 NC |
1186 | && bfd_bread (abfd->tdata.mmo_data->buf, 4, abfd) != 4) |
1187 | { | |
0a1b45a2 | 1188 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
1189 | |
1190 | /* A value somewhat safe against tripping on some inconsistency | |
1191 | when mopping up after this error. */ | |
1192 | return 128; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | retval = abfd->tdata.mmo_data->buf[abfd->tdata.mmo_data->byte_no]; | |
1197 | abfd->tdata.mmo_data->byte_no = (abfd->tdata.mmo_data->byte_no + 1) % 4; | |
1198 | ||
1199 | return retval; | |
1200 | } | |
1201 | ||
1202 | /* Write a byte, in multiples of 32-bit words. */ | |
1203 | ||
1204 | static void | |
278b4623 | 1205 | mmo_write_byte (bfd *abfd, bfd_byte value) |
3c3bdf30 NC |
1206 | { |
1207 | abfd->tdata.mmo_data->buf[(abfd->tdata.mmo_data->byte_no++ % 4)] = value; | |
1208 | if ((abfd->tdata.mmo_data->byte_no % 4) == 0) | |
1209 | { | |
82e51918 | 1210 | if (! abfd->tdata.mmo_data->have_error |
3c3bdf30 | 1211 | && bfd_bwrite (abfd->tdata.mmo_data->buf, 4, abfd) != 4) |
0a1b45a2 | 1212 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
1213 | } |
1214 | } | |
1215 | ||
1216 | /* Create a symbol. */ | |
1217 | ||
0a1b45a2 | 1218 | static bool |
278b4623 HPN |
1219 | mmo_create_symbol (bfd *abfd, const char *symname, bfd_vma addr, enum |
1220 | mmo_sym_type sym_type, unsigned int serno) | |
3c3bdf30 NC |
1221 | { |
1222 | struct mmo_symbol *n; | |
1223 | ||
1224 | n = (struct mmo_symbol *) bfd_alloc (abfd, sizeof (struct mmo_symbol)); | |
1225 | if (n == NULL) | |
0a1b45a2 | 1226 | return false; |
3c3bdf30 NC |
1227 | |
1228 | n->name = bfd_alloc (abfd, strlen (symname) + 1); | |
1229 | if (n->name == NULL) | |
0a1b45a2 | 1230 | return false; |
3c3bdf30 | 1231 | |
278b4623 | 1232 | strcpy (n->name, symname); |
3c3bdf30 NC |
1233 | |
1234 | n->value = addr; | |
1235 | n->sym_type = sym_type; | |
1236 | n->serno = serno; | |
1237 | ||
1238 | if (abfd->tdata.mmo_data->symbols == NULL) | |
1239 | abfd->tdata.mmo_data->symbols = n; | |
1240 | else | |
1241 | abfd->tdata.mmo_data->symtail->next = n; | |
1242 | abfd->tdata.mmo_data->symtail = n; | |
1243 | n->next = NULL; | |
1244 | ||
1245 | ++abfd->symcount; | |
1246 | ||
1247 | /* Check that :Main equals the last octa of the .MMIX.reg_contents | |
1248 | section, as it's the one place we're sure to pass when reading a mmo | |
1249 | object. For written objects, we do it while setting the symbol | |
1250 | table. */ | |
1251 | if (strcmp (symname, MMIX_START_SYMBOL_NAME) == 0 | |
c287bfe4 HPN |
1252 | && bfd_get_start_address (abfd) != addr |
1253 | && !mmo_ignore_symbol_consistency (abfd)) | |
3c3bdf30 | 1254 | { |
4eca0228 | 1255 | _bfd_error_handler |
871b3ab2 | 1256 | (_("%pB: invalid mmo file: initialization value for $255" |
dae82561 AM |
1257 | " is not `Main'\n"), |
1258 | abfd); | |
3c3bdf30 | 1259 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 1260 | return false; |
3c3bdf30 NC |
1261 | } |
1262 | ||
0a1b45a2 | 1263 | return true; |
3c3bdf30 NC |
1264 | } |
1265 | ||
1266 | /* Read in symbols. */ | |
1267 | ||
0a1b45a2 | 1268 | static bool |
278b4623 | 1269 | mmo_get_symbols (bfd *abfd) |
3c3bdf30 NC |
1270 | { |
1271 | /* | |
1272 | INODE | |
1273 | Symbol-table, mmo section mapping, File layout, mmo | |
1274 | SUBSECTION | |
1275 | Symbol table format | |
1276 | ||
52f4ea79 HPN |
1277 | From mmixal.w (or really, the generated mmixal.tex) in the |
1278 | MMIXware package which also contains the @command{mmix} simulator: | |
3c3bdf30 NC |
1279 | ``Symbols are stored and retrieved by means of a @samp{ternary |
1280 | search trie}, following ideas of Bentley and Sedgewick. (See | |
1281 | ACM--SIAM Symp.@: on Discrete Algorithms @samp{8} (1997), 360--369; | |
1282 | R.@:Sedgewick, @samp{Algorithms in C} (Reading, Mass.@: | |
1283 | Addison--Wesley, 1998), @samp{15.4}.) Each trie node stores a | |
1284 | character, and there are branches to subtries for the cases where | |
1285 | a given character is less than, equal to, or greater than the | |
1286 | character in the trie. There also is a pointer to a symbol table | |
1287 | entry if a symbol ends at the current node.'' | |
1288 | ||
1289 | So it's a tree encoded as a stream of bytes. The stream of bytes | |
1290 | acts on a single virtual global symbol, adding and removing | |
1291 | characters and signalling complete symbol points. Here, we read | |
1292 | the stream and create symbols at the completion points. | |
1293 | ||
1294 | First, there's a control byte <<m>>. If any of the listed bits | |
1295 | in <<m>> is nonzero, we execute what stands at the right, in | |
1296 | the listed order: | |
1297 | ||
1298 | | (MMO3_LEFT) | |
1299 | | 0x40 - Traverse left trie. | |
1300 | | (Read a new command byte and recurse.) | |
1301 | | | |
1302 | | (MMO3_SYMBITS) | |
1303 | | 0x2f - Read the next byte as a character and store it in the | |
1304 | | current character position; increment character position. | |
1305 | | Test the bits of <<m>>: | |
1306 | | | |
1307 | | (MMO3_WCHAR) | |
1308 | | 0x80 - The character is 16-bit (so read another byte, | |
1309 | | merge into current character. | |
1310 | | | |
1311 | | (MMO3_TYPEBITS) | |
1312 | | 0xf - We have a complete symbol; parse the type, value | |
1313 | | and serial number and do what should be done | |
1314 | | with a symbol. The type and length information | |
1315 | | is in j = (m & 0xf). | |
1316 | | | |
1317 | | (MMO3_REGQUAL_BITS) | |
1318 | | j == 0xf: A register variable. The following | |
1319 | | byte tells which register. | |
1320 | | j <= 8: An absolute symbol. Read j bytes as the | |
1321 | | big-endian number the symbol equals. | |
1322 | | A j = 2 with two zero bytes denotes an | |
1323 | | unknown symbol. | |
1324 | | j > 8: As with j <= 8, but add (0x20 << 56) | |
1325 | | to the value in the following j - 8 | |
1326 | | bytes. | |
1327 | | | |
1328 | | Then comes the serial number, as a variant of | |
1329 | | uleb128, but better named ubeb128: | |
1330 | | Read bytes and shift the previous value left 7 | |
1331 | | (multiply by 128). Add in the new byte, repeat | |
1332 | | until a byte has bit 7 set. The serial number | |
1333 | | is the computed value minus 128. | |
1334 | | | |
1335 | | (MMO3_MIDDLE) | |
1336 | | 0x20 - Traverse middle trie. (Read a new command byte | |
1337 | | and recurse.) Decrement character position. | |
1338 | | | |
1339 | | (MMO3_RIGHT) | |
1340 | | 0x10 - Traverse right trie. (Read a new command byte and | |
1341 | | recurse.) | |
1342 | ||
1343 | Let's look again at the <<lop_stab>> for the trivial file | |
1344 | (@pxref{File layout}). | |
1345 | ||
1346 | | 0x980b0000 - lop_stab for ":Main" = 0, serial 1. | |
1347 | | 0x203a4040 | |
1348 | | 0x10404020 | |
1349 | | 0x4d206120 | |
1350 | | 0x69016e00 | |
1351 | | 0x81000000 | |
1352 | ||
1353 | This forms the trivial trie (note that the path between ``:'' and | |
1354 | ``M'' is redundant): | |
1355 | ||
1356 | | 203a ":" | |
1357 | | 40 / | |
1358 | | 40 / | |
1359 | | 10 \ | |
1360 | | 40 / | |
1361 | | 40 / | |
1362 | | 204d "M" | |
1363 | | 2061 "a" | |
1364 | | 2069 "i" | |
1365 | | 016e "n" is the last character in a full symbol, and | |
1366 | | with a value represented in one byte. | |
1367 | | 00 The value is 0. | |
1368 | | 81 The serial number is 1. */ | |
1369 | ||
1370 | bfd_byte m = mmo_get_byte (abfd); | |
1371 | ||
1372 | /* Check first if we have a bad hair day. */ | |
82e51918 | 1373 | if (abfd->tdata.mmo_data->have_error) |
0a1b45a2 | 1374 | return false; |
3c3bdf30 NC |
1375 | |
1376 | if (m & MMO3_LEFT) | |
1377 | /* Traverse left trie. */ | |
1378 | mmo_get_symbols (abfd); | |
1379 | ||
1380 | if (m & MMO3_SYMBITS) | |
1381 | { | |
1382 | bfd_byte c = mmo_get_byte (abfd); | |
1383 | bfd_byte j = m & MMO3_TYPEBITS; | |
1384 | bfd_vma addr = 0; | |
1385 | enum mmo_sym_type sym_type; | |
1386 | unsigned int serno = 0; | |
1387 | bfd_byte k; | |
1388 | ||
1389 | if (m & MMO3_WCHAR) | |
1390 | { | |
1391 | bfd_byte c2 = mmo_get_byte (abfd); | |
1392 | ||
1393 | /* A two-byte character. We can't grok this, but neither can | |
1394 | mmotype, for other cases than the second byte being zero. */ | |
1395 | ||
1396 | if (c != 0) | |
1397 | { | |
1398 | abfd->tdata.mmo_data->lop_stab_symbol | |
1399 | [abfd->tdata.mmo_data->symbol_position] = 0; | |
1400 | ||
4eca0228 | 1401 | _bfd_error_handler |
695344c0 | 1402 | /* xgettext:c-format */ |
871b3ab2 | 1403 | (_("%pB: unsupported wide character sequence" |
278b4623 | 1404 | " 0x%02X 0x%02X after symbol name starting with `%s'\n"), |
dae82561 | 1405 | abfd, c, c2, abfd->tdata.mmo_data->lop_stab_symbol); |
3c3bdf30 | 1406 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 AM |
1407 | abfd->tdata.mmo_data->have_error = true; |
1408 | return false; | |
3c3bdf30 NC |
1409 | } |
1410 | else | |
1411 | c = c2; | |
1412 | } | |
1413 | ||
00d44f7f AM |
1414 | if (abfd->tdata.mmo_data->symbol_position |
1415 | >= abfd->tdata.mmo_data->max_symbol_length) | |
1416 | { | |
1417 | _bfd_error_handler | |
1418 | /* xgettext:c-format */ | |
1419 | (_("%pB: symbol name exceeds given max length of %d"), | |
1420 | abfd, abfd->tdata.mmo_data->max_symbol_length); | |
1421 | abfd->tdata.mmo_data->have_error = true; | |
1422 | return false; | |
1423 | } | |
3c3bdf30 NC |
1424 | abfd->tdata.mmo_data->lop_stab_symbol[abfd->tdata.mmo_data->symbol_position++] = c; |
1425 | abfd->tdata.mmo_data->lop_stab_symbol[abfd->tdata.mmo_data->symbol_position] = 0; | |
1426 | ||
1427 | if (j & MMO3_REGQUAL_BITS) | |
1428 | { | |
1429 | if (j == MMO3_REGQUAL_BITS) | |
1430 | { | |
1431 | sym_type = mmo_reg_sym; | |
1432 | addr = mmo_get_byte (abfd); | |
1433 | } | |
1434 | else if (j <= 8) | |
1435 | { | |
1436 | unsigned int i; | |
1437 | ||
1438 | for (i = 0; i < j; i++) | |
1439 | addr = (addr << 8) + mmo_get_byte (abfd); | |
1440 | ||
1441 | if (addr == 0 && j == MMO3_UNDEF) | |
1442 | sym_type = mmo_undef_sym; | |
1443 | else | |
1444 | sym_type = mmo_abs_sym; | |
1445 | } | |
1446 | else | |
1447 | { | |
1448 | unsigned int i; | |
1449 | ||
1450 | for (i = MMO3_DATA; i < j; i++) | |
1451 | addr = (addr << 8) + mmo_get_byte (abfd); | |
1452 | ||
1453 | addr += (bfd_vma) 0x20 << 56; | |
1454 | sym_type = mmo_data_sym; | |
1455 | } | |
1456 | ||
1457 | /* Get the serial number. */ | |
1458 | do | |
1459 | { | |
1460 | k = mmo_get_byte (abfd); | |
1461 | serno = (serno << 7) + k; | |
1462 | } | |
1463 | while (k < 128); | |
1464 | serno -= 128; | |
1465 | ||
1466 | /* Got it. Now enter it. Skip a leading ":". */ | |
82e51918 | 1467 | if (! abfd->tdata.mmo_data->have_error |
3c3bdf30 NC |
1468 | && ! mmo_create_symbol (abfd, |
1469 | abfd->tdata.mmo_data->lop_stab_symbol | |
1470 | + 1, | |
1471 | addr, sym_type, serno)) | |
0a1b45a2 | 1472 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
1473 | } |
1474 | ||
1475 | if (m & MMO3_MIDDLE) | |
1476 | /* Traverse middle trie. */ | |
1477 | mmo_get_symbols (abfd); | |
1478 | ||
1479 | abfd->tdata.mmo_data->symbol_position--; | |
1480 | } | |
1481 | ||
1482 | if (m & MMO3_RIGHT) | |
1483 | /* Traverse right trie. */ | |
1484 | mmo_get_symbols (abfd); | |
1485 | ||
82e51918 | 1486 | return ! abfd->tdata.mmo_data->have_error; |
3c3bdf30 NC |
1487 | } |
1488 | ||
1489 | /* Get the location of memory area [VMA..VMA + SIZE - 1], which we think | |
1490 | is in section SEC. Adjust and reallocate zero-initialized contents. | |
1491 | If there's new contents, allocate to the next multiple of | |
1492 | MMO_SEC_CONTENTS_CHUNK_SIZE. */ | |
1493 | ||
0a0ff9d9 | 1494 | static bfd_byte * |
2bda15d7 | 1495 | mmo_get_loc (asection *sec, bfd_vma vma, unsigned int size) |
3c3bdf30 NC |
1496 | { |
1497 | bfd_size_type allocated_size; | |
68bfbfcc | 1498 | struct mmo_section_data_struct *sdatap = mmo_section_data (sec); |
3c3bdf30 NC |
1499 | struct mmo_data_list_struct *datap = sdatap->head; |
1500 | struct mmo_data_list_struct *entry; | |
1501 | ||
dfa36a69 HPN |
1502 | /* First search the list to see if we have the requested chunk in one |
1503 | piece, or perhaps if we have a suitable chunk with room to fit. */ | |
3c3bdf30 NC |
1504 | for (; datap != NULL; datap = datap->next) |
1505 | { | |
1506 | if (datap->where <= vma | |
2bda15d7 AM |
1507 | && datap->size >= size |
1508 | && datap->size - size >= vma - datap->where) | |
1509 | return datap->data + (vma - datap->where); | |
3c3bdf30 | 1510 | else if (datap->where <= vma |
2bda15d7 AM |
1511 | && datap->allocated_size >= size |
1512 | && datap->allocated_size - size >= vma - datap->where | |
3c3bdf30 NC |
1513 | /* Only munch on the "allocated size" if it does not |
1514 | overlap the next chunk. */ | |
1515 | && (datap->next == NULL || datap->next->where >= vma + size)) | |
1516 | { | |
1517 | /* There was room allocated, but the size wasn't set to include | |
1518 | it. Do that now. */ | |
2bda15d7 | 1519 | datap->size = vma - datap->where + size; |
3c3bdf30 | 1520 | |
dfa36a69 HPN |
1521 | /* Update the section size. This happens only if we update the |
1522 | 32-bit-aligned chunk size. Callers that have | |
1523 | non-32-bit-aligned sections should do all allocation and | |
1524 | size-setting by themselves or at least set the section size | |
1525 | after the last allocating call to this function. */ | |
2bda15d7 AM |
1526 | if (vma - sec->vma + size > sec->size) |
1527 | sec->size = vma - sec->vma + size; | |
3c3bdf30 | 1528 | |
2bda15d7 | 1529 | return datap->data + (vma - datap->where); |
3c3bdf30 NC |
1530 | } |
1531 | } | |
1532 | ||
1533 | /* Not found; allocate a new block. First check in case we get a | |
1534 | request for a size split up over several blocks; we'll have to return | |
1535 | NULL for those cases, requesting the caller to split up the request. | |
1536 | Requests with an address aligned on MMO_SEC_CONTENTS_CHUNK_SIZE bytes and | |
1537 | for no more than MMO_SEC_CONTENTS_CHUNK_SIZE will always get resolved. */ | |
1538 | ||
1539 | for (datap = sdatap->head; datap != NULL; datap = datap->next) | |
2bda15d7 | 1540 | if ((datap->where <= vma && datap->size > vma - datap->where) |
3c3bdf30 NC |
1541 | || (datap->where < vma + size |
1542 | && datap->where + datap->size >= vma + size)) | |
1543 | return NULL; | |
1544 | ||
1545 | allocated_size | |
1546 | = (size + MMO_SEC_CONTENTS_CHUNK_SIZE - 1) & ~(MMO_SEC_CONTENTS_CHUNK_SIZE - 1); | |
1547 | entry = (mmo_data_list_type *) | |
1548 | bfd_zalloc (sec->owner, sizeof (mmo_data_list_type) + allocated_size); | |
1549 | if (entry == NULL) | |
c295a511 | 1550 | return NULL; |
3c3bdf30 NC |
1551 | entry->where = vma; |
1552 | entry->size = size; | |
1553 | entry->allocated_size = allocated_size; | |
1554 | ||
1555 | datap = sdatap->head; | |
1556 | ||
1557 | /* Sort the records by address. Optimize for the common case of adding | |
1558 | a record to the end of the list. */ | |
1559 | if (sdatap->tail != NULL && entry->where >= sdatap->tail->where) | |
1560 | { | |
1561 | sdatap->tail->next = entry; | |
1562 | entry->next = NULL; | |
1563 | sdatap->tail = entry; | |
1564 | } | |
1565 | else | |
1566 | { | |
1567 | mmo_data_list_type **look; | |
1568 | for (look = &sdatap->head; | |
1569 | *look != NULL && (*look)->where < entry->where; | |
1570 | look = &(*look)->next) | |
1571 | ; | |
1572 | entry->next = *look; | |
1573 | *look = entry; | |
1574 | if (entry->next == NULL) | |
1575 | { | |
1576 | sdatap->tail = entry; | |
1577 | ||
1578 | /* We get here for the first time (at other times too) for this | |
1579 | section. Say we have contents. */ | |
fd361982 AM |
1580 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
1581 | | SEC_HAS_CONTENTS))) | |
3c3bdf30 NC |
1582 | return NULL; |
1583 | } | |
1584 | } | |
1585 | ||
dfa36a69 HPN |
1586 | /* Update the section size. This happens only when we add contents and |
1587 | re-size as we go. The section size will then be aligned to 32 bits. */ | |
2bda15d7 AM |
1588 | if (vma - sec->vma + size > sec->size) |
1589 | sec->size = vma - sec->vma + size; | |
3c3bdf30 NC |
1590 | return entry->data; |
1591 | } | |
1592 | ||
1593 | /* Set sizes once we've read in all sections. */ | |
1594 | ||
1595 | static void | |
278b4623 HPN |
1596 | mmo_map_set_sizes (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, |
1597 | void *ignored ATTRIBUTE_UNUSED) | |
3c3bdf30 | 1598 | { |
3c3bdf30 NC |
1599 | sec->lma = sec->vma; |
1600 | } | |
1601 | ||
1602 | /* Read the mmo file and turn it into sections. */ | |
1603 | ||
0a1b45a2 | 1604 | static bool |
278b4623 | 1605 | mmo_scan (bfd *abfd) |
3c3bdf30 NC |
1606 | { |
1607 | unsigned int i; | |
1608 | unsigned int lineno = 1; | |
0a1b45a2 | 1609 | bool error = false; |
3c3bdf30 | 1610 | bfd_vma vma = 0; |
7b948a25 | 1611 | asection *sec = NULL; |
3c3bdf30 NC |
1612 | asection *non_spec_sec = NULL; |
1613 | bfd_vma non_spec_vma = 0; | |
3c3bdf30 NC |
1614 | bfd_size_type nbytes_read = 0; |
1615 | /* Buffer with room to read a 64-bit value. */ | |
1616 | bfd_byte buf[8]; | |
d42c267e | 1617 | file_ptr stab_loc = -1; |
3c3bdf30 NC |
1618 | char *file_names[256]; |
1619 | ||
c9ba0c87 | 1620 | abfd->symcount = 0; |
3c3bdf30 NC |
1621 | memset (file_names, 0, sizeof (file_names)); |
1622 | ||
1623 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) | |
1624 | goto error_return; | |
1625 | ||
1626 | while ((nbytes_read = bfd_bread (buf, 4, abfd)) == 4) | |
1627 | { | |
1628 | if (buf[0] == LOP) | |
1629 | { | |
1630 | unsigned int y = bfd_get_8 (abfd, buf + 2); | |
1631 | unsigned int z = bfd_get_8 (abfd, buf + 3); | |
1632 | ||
1633 | /* Change back to the original section for lopcodes other | |
1634 | than LOP_QUOTE that comes after a LOP_SPEC. */ | |
1635 | if ((buf[1] != LOP_QUOTE || y != 0 || z != 1) | |
1636 | && non_spec_sec != NULL) | |
1637 | { | |
1638 | sec = non_spec_sec; | |
1639 | vma = non_spec_vma; | |
1640 | non_spec_sec = NULL; | |
1641 | } | |
1642 | ||
1643 | switch (buf[1]) | |
1644 | { | |
1645 | default: | |
4eca0228 | 1646 | _bfd_error_handler |
695344c0 | 1647 | /* xgettext:c-format */ |
871b3ab2 | 1648 | (_("%pB: invalid mmo file: unsupported lopcode `%d'\n"), |
dae82561 | 1649 | abfd, buf[1]); |
3c3bdf30 NC |
1650 | bfd_set_error (bfd_error_bad_value); |
1651 | goto error_return; | |
1652 | ||
1653 | case LOP_QUOTE: | |
1654 | /* Quote the next 32-bit word. */ | |
1655 | if (y != 0 || z != 1) | |
1656 | { | |
4eca0228 | 1657 | _bfd_error_handler |
695344c0 | 1658 | /* xgettext:c-format */ |
871b3ab2 | 1659 | (_("%pB: invalid mmo file: expected YZ = 1" |
dae82561 AM |
1660 | " got YZ = %d for lop_quote\n"), |
1661 | abfd, y*256+z); | |
3c3bdf30 NC |
1662 | bfd_set_error (bfd_error_bad_value); |
1663 | goto error_return; | |
1664 | } | |
1665 | if (bfd_bread (buf, 4, abfd) != 4) | |
1666 | goto error_return; | |
1667 | ||
1218d67d | 1668 | vma &= ~3; |
7b948a25 HPN |
1669 | if (sec == NULL) |
1670 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
0a0ff9d9 AM |
1671 | if (!mmo_xore_32 (sec, vma, bfd_get_32 (abfd, buf))) |
1672 | { | |
1673 | bfd_set_error (bfd_error_bad_value); | |
1674 | goto error_return; | |
1675 | } | |
3c3bdf30 | 1676 | vma += 4; |
3c3bdf30 NC |
1677 | lineno++; |
1678 | break; | |
1679 | ||
1680 | case LOP_LOC: | |
1681 | /* Set vma (and section). */ | |
1682 | vma = (bfd_vma) y << 56; | |
1683 | if (z == 1) | |
1684 | { | |
1685 | /* Get a 32-bit value. */ | |
1686 | if (bfd_bread (buf, 4, abfd) != 4) | |
1687 | goto error_return; | |
1688 | ||
1689 | vma += bfd_get_32 (abfd, buf); | |
1690 | } | |
1691 | else if (z == 2) | |
1692 | { | |
1693 | /* Get a 64-bit value. */ | |
1694 | if (bfd_bread (buf, 8, abfd) != 8) | |
1695 | goto error_return; | |
1696 | ||
1697 | vma += bfd_get_64 (abfd, buf); | |
1698 | } | |
1699 | else | |
1700 | { | |
4eca0228 | 1701 | _bfd_error_handler |
695344c0 | 1702 | /* xgettext:c-format */ |
871b3ab2 | 1703 | (_("%pB: invalid mmo file: expected z = 1 or z = 2," |
dae82561 AM |
1704 | " got z = %d for lop_loc\n"), |
1705 | abfd, z); | |
3c3bdf30 NC |
1706 | bfd_set_error (bfd_error_bad_value); |
1707 | goto error_return; | |
1708 | } | |
1709 | ||
1218d67d HPN |
1710 | /* When we decide which section the data goes into, we might |
1711 | create the section. If that happens, make sure the VMA at | |
1712 | creation time is tetra-aligned. */ | |
1713 | sec = mmo_decide_section (abfd, vma & ~3); | |
3c3bdf30 NC |
1714 | if (sec == NULL) |
1715 | goto error_return; | |
1716 | break; | |
1717 | ||
1718 | case LOP_SKIP: | |
1719 | /* Move forward within the same section. */ | |
1720 | vma += y * 256 + z; | |
1721 | ||
1722 | sec = mmo_decide_section (abfd, vma); | |
1723 | if (sec == NULL) | |
1724 | goto error_return; | |
1725 | break; | |
1726 | ||
1727 | case LOP_FIXO: | |
1728 | /* A fixup: Store the current vma somewhere. Position using | |
1729 | same format as LOP_LOC. */ | |
1730 | { | |
1731 | bfd_vma p = (bfd_vma) y << 56; | |
1732 | asection *fixosec; | |
1733 | ||
1734 | if (z == 1) | |
1735 | { | |
1736 | /* Get a 32-bit value. */ | |
1737 | if (bfd_bread (buf, 4, abfd) != 4) | |
1738 | goto error_return; | |
1739 | ||
1740 | p += bfd_get_32 (abfd, buf); | |
1741 | } | |
1742 | else if (z == 2) | |
1743 | { | |
1744 | /* Get a 64-bit value. */ | |
1745 | if (bfd_bread (buf, 8, abfd) != 8) | |
1746 | goto error_return; | |
1747 | ||
1748 | p += bfd_get_64 (abfd, buf); | |
1749 | } | |
1750 | else | |
1751 | { | |
4eca0228 | 1752 | _bfd_error_handler |
695344c0 | 1753 | /* xgettext:c-format */ |
871b3ab2 | 1754 | (_("%pB: invalid mmo file: expected z = 1 or z = 2," |
dae82561 AM |
1755 | " got z = %d for lop_fixo\n"), |
1756 | abfd, z); | |
3c3bdf30 NC |
1757 | bfd_set_error (bfd_error_bad_value); |
1758 | goto error_return; | |
1759 | } | |
1760 | ||
1761 | /* The section where we store this address might be a | |
1762 | different one than the current section. */ | |
1763 | fixosec = mmo_decide_section (abfd, p); | |
1764 | if (fixosec == NULL) | |
1765 | goto error_return; | |
0a0ff9d9 AM |
1766 | if (!mmo_xore_64 (fixosec, p, vma)) |
1767 | { | |
1768 | bfd_set_error (bfd_error_bad_value); | |
1769 | goto error_return; | |
1770 | } | |
3c3bdf30 NC |
1771 | } |
1772 | break; | |
1773 | ||
1774 | case LOP_FIXR: | |
1775 | /* A fixup: Store YZ of this lopcode into YZ at vma - 4 * yz. */ | |
1776 | { | |
1777 | unsigned int yz = (y * 256 + z); | |
1778 | bfd_vma p = vma + 2 - 4 * yz; | |
1779 | asection *fixrsec = mmo_decide_section (abfd, p); | |
1780 | if (fixrsec == NULL) | |
1781 | goto error_return; | |
0a0ff9d9 AM |
1782 | if (!mmo_xore_16 (fixrsec, p, yz)) |
1783 | { | |
1784 | bfd_set_error (bfd_error_bad_value); | |
1785 | goto error_return; | |
1786 | } | |
3c3bdf30 NC |
1787 | } |
1788 | break; | |
1789 | ||
1790 | case LOP_FIXRX: | |
1791 | /* A fixup, similar to lop_fixr, but taking larger numbers | |
1792 | and can change branches into the opposite direction | |
1793 | (gasp!). */ | |
1794 | { | |
1795 | bfd_vma delta; | |
1796 | bfd_vma p; | |
1797 | asection *fixrsec; | |
1798 | ||
1799 | if (y != 0) | |
1800 | { | |
4eca0228 | 1801 | _bfd_error_handler |
695344c0 | 1802 | /* xgettext:c-format */ |
871b3ab2 | 1803 | (_("%pB: invalid mmo file: expected y = 0," |
dae82561 AM |
1804 | " got y = %d for lop_fixrx\n"), |
1805 | abfd, y); | |
3c3bdf30 NC |
1806 | bfd_set_error (bfd_error_bad_value); |
1807 | goto error_return; | |
1808 | } | |
1809 | ||
1810 | if (z != 16 && z != 24) | |
1811 | { | |
4eca0228 | 1812 | _bfd_error_handler |
695344c0 | 1813 | /* xgettext:c-format */ |
871b3ab2 | 1814 | (_("%pB: invalid mmo file: expected z = 16 or z = 24," |
dae82561 AM |
1815 | " got z = %d for lop_fixrx\n"), |
1816 | abfd, z); | |
3c3bdf30 NC |
1817 | bfd_set_error (bfd_error_bad_value); |
1818 | goto error_return; | |
1819 | } | |
1820 | ||
1821 | /* Get the next 32-bit value. */ | |
1822 | if (bfd_bread (buf, 4, abfd) != 4) | |
1823 | goto error_return; | |
1824 | ||
1825 | delta = bfd_get_32 (abfd, buf); | |
1826 | ||
1827 | /* Do an, ehm, involved calculation for the location of | |
1828 | the fixup. See mmixal documentation for a verbose | |
1829 | explanation. We follow it verbosely here for the | |
1830 | readers delight. */ | |
1831 | if (buf[0] == 0) | |
1832 | p = vma - 4 * delta; | |
1833 | else if (buf[0] == 1) | |
1834 | p = vma - 4 * ((delta & 0xffffff) - (1 << z)); | |
1835 | else | |
1836 | { | |
4eca0228 | 1837 | _bfd_error_handler |
695344c0 | 1838 | /* xgettext:c-format */ |
871b3ab2 | 1839 | (_("%pB: invalid mmo file: leading byte of operand word" |
dae82561 AM |
1840 | " must be 0 or 1, got %d for lop_fixrx\n"), |
1841 | abfd, buf[0]); | |
3c3bdf30 NC |
1842 | bfd_set_error (bfd_error_bad_value); |
1843 | goto error_return; | |
1844 | } | |
1845 | ||
1846 | fixrsec = mmo_decide_section (abfd, vma); | |
1847 | if (fixrsec == NULL) | |
1848 | goto error_return; | |
0a0ff9d9 AM |
1849 | if (!mmo_xore_32 (fixrsec, p, delta)) |
1850 | { | |
1851 | bfd_set_error (bfd_error_bad_value); | |
1852 | goto error_return; | |
1853 | } | |
3c3bdf30 NC |
1854 | } |
1855 | break; | |
1856 | ||
1857 | case LOP_FILE: | |
1858 | /* Set current file and perhaps the file name. Reset line | |
1859 | number. */ | |
1860 | if (z != 0) | |
1861 | { | |
1862 | char *fname = bfd_malloc (z * 4 + 1); | |
1863 | ||
1864 | if (fname == NULL) | |
1865 | { | |
4eca0228 | 1866 | _bfd_error_handler |
695344c0 | 1867 | /* xgettext:c-format */ |
871b3ab2 | 1868 | (_("%pB: cannot allocate file name for file number %d," |
dae82561 AM |
1869 | " %d bytes\n"), |
1870 | abfd, y, z * 4 + 1); | |
3c3bdf30 NC |
1871 | bfd_set_error (bfd_error_system_call); |
1872 | goto error_return; | |
1873 | } | |
1874 | ||
1875 | fname[z * 4] = 0; | |
1876 | ||
1877 | for (i = 0; i < z; i++) | |
1878 | { | |
1879 | if (bfd_bread (fname + i * 4, 4, abfd) != 4) | |
1880 | { | |
1881 | free (fname); | |
1882 | goto error_return; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | if (file_names[y] != NULL) | |
1887 | { | |
4eca0228 | 1888 | _bfd_error_handler |
695344c0 | 1889 | /* xgettext:c-format */ |
871b3ab2 | 1890 | (_("%pB: invalid mmo file: file number %d `%s'," |
278b4623 | 1891 | " was already entered as `%s'\n"), |
dae82561 | 1892 | abfd, y, fname, file_names[y]); |
3c3bdf30 NC |
1893 | bfd_set_error (bfd_error_bad_value); |
1894 | goto error_return; | |
1895 | } | |
1896 | ||
1897 | file_names[y] = fname; | |
1898 | } | |
1899 | ||
1900 | if (file_names[y] == NULL) | |
1901 | { | |
4eca0228 | 1902 | _bfd_error_handler |
695344c0 | 1903 | /* xgettext:c-format */ |
871b3ab2 | 1904 | (_("%pB: invalid mmo file: file name for number %d" |
278b4623 | 1905 | " was not specified before use\n"), |
dae82561 | 1906 | abfd, y); |
3c3bdf30 NC |
1907 | bfd_set_error (bfd_error_bad_value); |
1908 | goto error_return; | |
1909 | } | |
1910 | ||
3c3bdf30 NC |
1911 | lineno = 0; |
1912 | break; | |
1913 | ||
1914 | case LOP_LINE: | |
1915 | /* Set line number. */ | |
1916 | lineno = y * 256 + z; | |
1917 | /* FIXME: Create a sequence of mmo-specific line number | |
1918 | entries for each section, then translate into canonical | |
1919 | format. */ | |
1920 | break; | |
1921 | ||
1922 | case LOP_SPEC: | |
1923 | /* Special data follows until the next non-lop_quote | |
1924 | lopcode. */ | |
1925 | non_spec_sec = sec; | |
1926 | non_spec_vma = vma; | |
1927 | sec = mmo_get_spec_section (abfd, y * 256 + z); | |
1928 | if (sec == NULL) | |
1929 | goto error_return; | |
1930 | ||
1931 | vma = sec->vma; | |
1932 | break; | |
1933 | ||
1934 | case LOP_PRE: | |
1935 | { | |
1936 | /* We ignore header information, except we read in the | |
1937 | creation time from the first 32-bit word with the time | |
1938 | in seconds since era. */ | |
1939 | if (z >= 1 | |
1940 | && bfd_bread (abfd->tdata.mmo_data->created, 4, | |
1941 | abfd) != 4) | |
1942 | goto error_return; | |
1943 | ||
1944 | for (i = 1; i < z; i++) | |
1945 | if (bfd_bread (buf, 4, abfd) != 4) | |
1946 | goto error_return; | |
1947 | } | |
1948 | break; | |
1949 | ||
1950 | case LOP_POST: | |
1951 | /* This tells of the contents of registers $Z..$255 at | |
1952 | startup. We make a section out of it, with VMA = Z * 8, | |
1953 | but only if Z != 255 or the contents is non-zero. */ | |
1954 | { | |
1955 | asection *rsec; | |
1956 | bfd_byte *loc; | |
1957 | bfd_vma first_octa; | |
1958 | bfd_vma startaddr_octa; | |
1959 | ||
1960 | /* Read first octaword outside loop to simplify logic when | |
1961 | excluding the Z == 255, octa == 0 case. */ | |
1962 | if (bfd_bread (buf, 8, abfd) != 8) | |
1963 | goto error_return; | |
1964 | ||
1965 | first_octa = bfd_get_64 (abfd, buf); | |
1966 | ||
1967 | /* Don't emit contents for the trivial case which is | |
1968 | always present; $255 pointing to Main. */ | |
1969 | if (z != 255) | |
1970 | { | |
1971 | rsec | |
1972 | = bfd_make_section_old_way (abfd, | |
1973 | MMIX_REG_CONTENTS_SECTION_NAME); | |
46fda84e | 1974 | rsec->flags |= SEC_LINKER_CREATED; |
3c3bdf30 NC |
1975 | rsec->vma = z * 8; |
1976 | loc = mmo_get_loc (rsec, z * 8, (255 - z) * 8); | |
0a0ff9d9 AM |
1977 | if (!loc) |
1978 | { | |
1979 | bfd_set_error (bfd_error_bad_value); | |
1980 | goto error_return; | |
1981 | } | |
3c3bdf30 NC |
1982 | bfd_put_64 (abfd, first_octa, loc); |
1983 | ||
1984 | for (i = z + 1; i < 255; i++) | |
1985 | { | |
1986 | if (bfd_bread (loc + (i - z) * 8, 8, abfd) != 8) | |
1987 | goto error_return; | |
1988 | } | |
1989 | ||
1990 | /* Read out the last octabyte, and use it to set the | |
1991 | start address. */ | |
1992 | if (bfd_bread (buf, 8, abfd) != 8) | |
1993 | goto error_return; | |
1994 | ||
1995 | startaddr_octa = bfd_get_64 (abfd, buf); | |
1996 | } | |
1997 | else | |
1998 | startaddr_octa = first_octa; | |
1999 | ||
2000 | if (! bfd_set_start_address (abfd, startaddr_octa)) | |
2001 | { | |
2002 | /* Currently this can't fail, but this should handle | |
2003 | future failures. */ | |
2004 | bfd_set_error (bfd_error_bad_value); | |
2005 | goto error_return; | |
2006 | } | |
2007 | } | |
2008 | break; | |
2009 | ||
2010 | case LOP_STAB: | |
2011 | /* We read in the symbols now, not later. */ | |
2012 | if (y != 0 || z != 0) | |
2013 | { | |
4eca0228 | 2014 | _bfd_error_handler |
695344c0 | 2015 | /* xgettext:c-format */ |
871b3ab2 | 2016 | (_("%pB: invalid mmo file: fields y and z of lop_stab" |
278b4623 | 2017 | " non-zero, y: %d, z: %d\n"), |
dae82561 | 2018 | abfd, y, z); |
3c3bdf30 NC |
2019 | bfd_set_error (bfd_error_bad_value); |
2020 | goto error_return; | |
2021 | } | |
2022 | ||
2023 | /* Save the location, so we can check that YZ in the LOP_END | |
2024 | is correct. */ | |
2025 | stab_loc = bfd_tell (abfd); | |
2026 | ||
2027 | /* It's not said that an MMO can be without symbols (though | |
2028 | mmixal will refuse to assemble files without Main), but | |
2029 | it seems it would still be a valid mmo-file, so allow it. | |
2030 | We detect the absence of a symbol area in that the upper | |
2031 | limit is computed (from the lop_end YZ field) as 0. | |
2032 | Don't call mmo_get_symbols; it can only detect the end of | |
2033 | a valid symbol trie, not the absence of one. */ | |
2034 | if (abfd->tdata.mmo_data->max_symbol_length != 0 | |
2035 | && ! mmo_get_symbols (abfd)) | |
2036 | goto error_return; | |
2037 | break; | |
2038 | ||
2039 | case LOP_END: | |
2040 | { | |
2041 | /* This must be the last 32-bit word in an mmo file. | |
2042 | Let's find out. */ | |
2043 | struct stat statbuf; | |
74633dd0 | 2044 | file_ptr curpos = bfd_tell (abfd); |
3c3bdf30 NC |
2045 | |
2046 | if (bfd_stat (abfd, &statbuf) < 0) | |
2047 | goto error_return; | |
2048 | ||
2049 | if (statbuf.st_size != curpos) | |
2050 | { | |
4eca0228 | 2051 | _bfd_error_handler |
695344c0 | 2052 | /* xgettext:c-format */ |
871b3ab2 | 2053 | (_("%pB: invalid mmo file: lop_end not last item in" |
278b4623 | 2054 | " file\n"), |
dae82561 | 2055 | abfd); |
3c3bdf30 NC |
2056 | bfd_set_error (bfd_error_bad_value); |
2057 | goto error_return; | |
2058 | } | |
2059 | ||
2060 | /* Check that the YZ field is right. Subtract the size of | |
2061 | this LOP_END in the calculation; YZ does not include | |
2062 | it. */ | |
2063 | if ((long) (y * 256 + z) * 4 != (curpos - stab_loc) - 4) | |
2064 | { | |
4eca0228 | 2065 | _bfd_error_handler |
695344c0 | 2066 | /* xgettext:c-format */ |
871b3ab2 | 2067 | (_("%pB: invalid mmo file: YZ of lop_end (%ld)" |
278b4623 HPN |
2068 | " not equal to the number of tetras to the preceding" |
2069 | " lop_stab (%ld)\n"), | |
dae82561 | 2070 | abfd, (long) (y * 256 + z), |
d42c267e | 2071 | (long) (curpos - stab_loc - 4)/4); |
3c3bdf30 NC |
2072 | bfd_set_error (bfd_error_bad_value); |
2073 | goto error_return; | |
2074 | } | |
2075 | ||
2076 | bfd_map_over_sections (abfd, mmo_map_set_sizes, NULL); | |
2077 | goto done; | |
2078 | } | |
2079 | } | |
2080 | } | |
2081 | else | |
2082 | { | |
2083 | /* This wasn't a lopcode, so store it in the current section. */ | |
7b948a25 HPN |
2084 | if (sec == NULL) |
2085 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
0a0ff9d9 AM |
2086 | if (!mmo_xore_32 (sec, vma & ~3, bfd_get_32 (abfd, buf))) |
2087 | { | |
2088 | bfd_set_error (bfd_error_bad_value); | |
2089 | goto error_return; | |
2090 | } | |
3c3bdf30 NC |
2091 | vma += 4; |
2092 | vma &= ~3; | |
2093 | lineno++; | |
2094 | } | |
2095 | } | |
2096 | ||
2097 | /* We know this file is a multiple of four bytes (checked in | |
2098 | mmo_object_p), so if we got something other than 0, this was a bad | |
2099 | file (although it's more likely we'll get 0 in that case too). | |
2100 | If we got end-of-file, then there was no lop_stab, so the file has | |
2101 | invalid format. */ | |
2102 | ||
2103 | if (nbytes_read != 0) | |
2104 | bfd_set_error (bfd_error_system_call); | |
2105 | else | |
2106 | bfd_set_error (bfd_error_bad_value); | |
2107 | ||
2108 | error_return: | |
0a1b45a2 | 2109 | error = true; |
3c3bdf30 NC |
2110 | done: |
2111 | /* Mark the .text and .data section with their normal attribute if they | |
2112 | contain anything. This is not redundant wrt. mmo_decide_section, | |
2113 | since that code might never execute, and conversely the alloc+code | |
2114 | section flags must be set then. */ | |
2115 | sec = bfd_get_section_by_name (abfd, MMO_TEXT_SECTION_NAME); | |
2116 | if (sec != NULL | |
fd361982 AM |
2117 | && (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
2118 | && !bfd_set_section_flags (sec, (bfd_section_flags (sec) | |
2119 | | SEC_ALLOC | SEC_LOAD | SEC_CODE))) | |
0a1b45a2 | 2120 | error = true; |
3c3bdf30 NC |
2121 | |
2122 | sec = bfd_get_section_by_name (abfd, MMO_DATA_SECTION_NAME); | |
2123 | if (sec != NULL | |
fd361982 AM |
2124 | && (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
2125 | && !bfd_set_section_flags (sec, (bfd_section_flags (sec) | |
5f602802 | 2126 | | SEC_ALLOC | SEC_LOAD | SEC_DATA))) |
0a1b45a2 | 2127 | error = true; |
3c3bdf30 NC |
2128 | |
2129 | /* Free whatever resources we took. */ | |
2130 | for (i = 0; i < sizeof (file_names) / sizeof (file_names[0]); i++) | |
c9594989 | 2131 | free (file_names[i]); |
82e51918 | 2132 | return ! error; |
3c3bdf30 NC |
2133 | } |
2134 | ||
2135 | /* A hook to set up object file dependent section information. For mmo, | |
2136 | we point out the shape of allocated section contents. */ | |
2137 | ||
0a1b45a2 | 2138 | static bool |
f592407e | 2139 | mmo_new_section_hook (bfd *abfd, asection *newsect) |
3c3bdf30 | 2140 | { |
3c3bdf30 | 2141 | if (!newsect->used_by_bfd) |
f592407e AM |
2142 | { |
2143 | /* We zero-fill all fields and assume NULL is represented by an all | |
2144 | zero-bit pattern. */ | |
2145 | newsect->used_by_bfd | |
2146 | = bfd_zalloc (abfd, sizeof (struct mmo_section_data_struct)); | |
2147 | if (!newsect->used_by_bfd) | |
0a1b45a2 | 2148 | return false; |
f592407e | 2149 | } |
3c3bdf30 NC |
2150 | |
2151 | /* Always align to at least 32-bit words. */ | |
2152 | newsect->alignment_power = 2; | |
f592407e | 2153 | return _bfd_generic_new_section_hook (abfd, newsect); |
3c3bdf30 NC |
2154 | } |
2155 | ||
2156 | /* We already have section contents loaded for sections that have | |
2157 | contents. */ | |
2158 | ||
0a1b45a2 | 2159 | static bool |
278b4623 HPN |
2160 | mmo_get_section_contents (bfd *abfd ATTRIBUTE_UNUSED, |
2161 | asection *sec, | |
2162 | void * location, | |
2163 | file_ptr offset, | |
2164 | bfd_size_type bytes_to_do) | |
3c3bdf30 NC |
2165 | { |
2166 | /* Iterate over diminishing chunk sizes, copying contents, like | |
2167 | mmo_set_section_contents. */ | |
2168 | while (bytes_to_do) | |
2169 | { | |
2170 | /* A minor song-and-dance to make sure we're not bitten by the | |
2171 | distant possibility of the cast from bfd_vma to int making the | |
2172 | chunk zero-sized. */ | |
2173 | int chunk_size | |
2174 | = (int) bytes_to_do != 0 ? bytes_to_do : MMO_SEC_CONTENTS_CHUNK_SIZE; | |
2175 | bfd_byte *loc; | |
2176 | ||
2177 | do | |
2178 | loc = mmo_get_loc (sec, sec->vma + offset, chunk_size); | |
2179 | while (loc == NULL && (chunk_size /= 2) != 0); | |
2180 | ||
2181 | if (chunk_size == 0) | |
0a1b45a2 | 2182 | return false; |
3c3bdf30 NC |
2183 | |
2184 | memcpy (location, loc, chunk_size); | |
2185 | ||
28cc9170 | 2186 | location = (bfd_byte *) location + chunk_size; |
3c3bdf30 NC |
2187 | bytes_to_do -= chunk_size; |
2188 | offset += chunk_size; | |
2189 | } | |
0a1b45a2 | 2190 | return true; |
3c3bdf30 NC |
2191 | } |
2192 | ||
2193 | /* Return the amount of memory needed to read the symbol table. */ | |
2194 | ||
2195 | static long | |
278b4623 | 2196 | mmo_get_symtab_upper_bound (bfd *abfd) |
3c3bdf30 NC |
2197 | { |
2198 | return (abfd->symcount + 1) * sizeof (asymbol *); | |
2199 | } | |
2200 | ||
2201 | /* Sort mmo symbols by serial number. */ | |
2202 | ||
2203 | static int | |
278b4623 | 2204 | mmo_sort_mmo_symbols (const void *arg1, const void *arg2) |
3c3bdf30 | 2205 | { |
3f9c735e AM |
2206 | const struct mmo_symbol *sym1 = *(const struct mmo_symbol **) arg1; |
2207 | const struct mmo_symbol *sym2 = *(const struct mmo_symbol **) arg2; | |
3c3bdf30 NC |
2208 | |
2209 | /* Sort by serial number first. */ | |
2210 | if (sym1->serno < sym2->serno) | |
2211 | return -1; | |
2212 | else if (sym1->serno > sym2->serno) | |
2213 | return 1; | |
2214 | ||
2215 | /* Then sort by address of the table entries. */ | |
3f9c735e | 2216 | return ((const char *) arg1 - (const char *) arg2); |
3c3bdf30 NC |
2217 | } |
2218 | ||
2219 | /* Translate the symbol table. */ | |
2220 | ||
2221 | static long | |
278b4623 | 2222 | mmo_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3c3bdf30 NC |
2223 | { |
2224 | unsigned int symcount = bfd_get_symcount (abfd); | |
2225 | asymbol *csymbols; | |
2226 | unsigned int i; | |
2227 | ||
2228 | csymbols = abfd->tdata.mmo_data->csymbols; | |
b9da616a | 2229 | if (csymbols == NULL && symcount != 0) |
3c3bdf30 NC |
2230 | { |
2231 | asymbol *c; | |
2232 | struct mmo_symbol *s; | |
2233 | struct mmo_symbol **msp; | |
2234 | ||
2235 | /* First we store the symbols into the table we'll return, then we | |
2236 | qsort it on the serial number, with secondary on the address of | |
2237 | the symbol, to preserve order if there would be non-unique serial | |
2238 | numbers. */ | |
2239 | for (s = abfd->tdata.mmo_data->symbols, | |
2240 | msp = (struct mmo_symbol **) alocation; | |
2241 | s != NULL; | |
2242 | s = s->next, ++msp) | |
2243 | *msp = s; | |
2244 | ||
2245 | *msp = NULL; | |
2246 | ||
2247 | qsort (alocation, symcount, sizeof (struct mmo_symbol *), | |
2248 | mmo_sort_mmo_symbols); | |
2249 | ||
2250 | csymbols = (asymbol *) bfd_alloc (abfd, symcount * sizeof (asymbol)); | |
b9da616a AM |
2251 | if (csymbols == NULL) |
2252 | return -1; | |
3c3bdf30 NC |
2253 | abfd->tdata.mmo_data->csymbols = csymbols; |
2254 | ||
2255 | for (msp = (struct mmo_symbol **) alocation, c = csymbols; | |
2256 | *msp != NULL; | |
2257 | msp++, ++c) | |
2258 | { | |
2259 | s = *msp; | |
2260 | c->the_bfd = abfd; | |
2261 | c->name = s->name; | |
2262 | c->value = s->value; | |
2263 | c->flags = BSF_GLOBAL; | |
2264 | ||
2265 | if (s->sym_type == mmo_data_sym) | |
2266 | { | |
2267 | c->section | |
2268 | = bfd_get_section_by_name (abfd, MMO_DATA_SECTION_NAME); | |
2269 | ||
2270 | if (c->section == NULL) | |
2271 | c->section = bfd_abs_section_ptr; | |
2272 | else | |
2273 | c->value -= c->section->vma; | |
2274 | } | |
2275 | else if (s->sym_type == mmo_undef_sym) | |
2276 | c->section = bfd_und_section_ptr; | |
2277 | else if (s->sym_type == mmo_reg_sym) | |
2278 | { | |
2279 | c->section | |
2280 | = bfd_make_section_old_way (abfd, MMIX_REG_SECTION_NAME); | |
46fda84e | 2281 | c->section->flags |= SEC_LINKER_CREATED; |
3c3bdf30 NC |
2282 | } |
2283 | else | |
2284 | { | |
2285 | asection *textsec | |
2286 | = bfd_get_section_by_name (abfd, MMO_TEXT_SECTION_NAME); | |
aa69fe43 | 2287 | asection *datasec; |
3c3bdf30 NC |
2288 | |
2289 | if (textsec != NULL | |
2290 | && c->value >= textsec->vma | |
eea6121a | 2291 | && c->value <= textsec->vma + textsec->size) |
3c3bdf30 NC |
2292 | { |
2293 | c->section = textsec; | |
2294 | c->value -= c->section->vma; | |
2295 | } | |
aa69fe43 HPN |
2296 | /* In mmo, symbol types depend on the VMA. Therefore, if |
2297 | the data section isn't within the usual bounds, its | |
2298 | symbols are marked as absolute. Correct that. This | |
2299 | means we can't have absolute symbols with values matching | |
2300 | data section addresses, but we also can't have with | |
2301 | absolute symbols with values matching text section | |
2302 | addresses. For such needs, use the ELF format. */ | |
2303 | else if ((datasec | |
2304 | = bfd_get_section_by_name (abfd, | |
2305 | MMO_DATA_SECTION_NAME)) | |
2306 | != NULL | |
2307 | && c->value >= datasec->vma | |
2308 | && c->value <= datasec->vma + datasec->size) | |
2309 | { | |
2310 | c->section = datasec; | |
2311 | c->value -= c->section->vma; | |
2312 | } | |
3c3bdf30 NC |
2313 | else |
2314 | c->section = bfd_abs_section_ptr; | |
2315 | } | |
2316 | ||
2317 | c->udata.p = NULL; | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | /* Last, overwrite the incoming table with the right-type entries. */ | |
2322 | for (i = 0; i < symcount; i++) | |
2323 | *alocation++ = csymbols++; | |
2324 | *alocation = NULL; | |
2325 | ||
2326 | return symcount; | |
2327 | } | |
2328 | ||
3c3bdf30 NC |
2329 | /* Get information about a symbol. */ |
2330 | ||
2331 | static void | |
278b4623 HPN |
2332 | mmo_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
2333 | asymbol *symbol, symbol_info *ret) | |
3c3bdf30 NC |
2334 | { |
2335 | bfd_symbol_info (symbol, ret); | |
2336 | } | |
2337 | ||
2338 | static void | |
278b4623 HPN |
2339 | mmo_print_symbol (bfd *abfd, void *afile, asymbol *symbol, |
2340 | bfd_print_symbol_type how) | |
3c3bdf30 NC |
2341 | { |
2342 | FILE *file = (FILE *) afile; | |
2343 | ||
2344 | switch (how) | |
2345 | { | |
2346 | case bfd_print_symbol_name: | |
2347 | fprintf (file, "%s", symbol->name); | |
2348 | break; | |
2349 | default: | |
278b4623 | 2350 | bfd_print_symbol_vandf (abfd, file, symbol); |
3c3bdf30 NC |
2351 | |
2352 | fprintf (file, " %-5s %s", | |
2353 | symbol->section->name, | |
2354 | symbol->name); | |
2355 | } | |
2356 | } | |
2357 | ||
2358 | /* We can't map a file directly into executable code, so the | |
2359 | size of header information is irrelevant. */ | |
2360 | ||
2361 | static int | |
278b4623 | 2362 | mmo_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, |
a6b96beb | 2363 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3c3bdf30 NC |
2364 | { |
2365 | return 0; | |
2366 | } | |
2367 | ||
2368 | /* Write the (section-neutral) file preamble. */ | |
2369 | ||
0a1b45a2 | 2370 | static bool |
278b4623 | 2371 | mmo_internal_write_header (bfd *abfd) |
3c3bdf30 | 2372 | { |
3f9c735e | 2373 | const char lop_pre_bfd[] = { LOP, LOP_PRE, 1, 1}; |
3c3bdf30 NC |
2374 | |
2375 | if (bfd_bwrite (lop_pre_bfd, 4, abfd) != 4) | |
0a1b45a2 | 2376 | return false; |
3c3bdf30 NC |
2377 | |
2378 | /* Copy creation time of original file. */ | |
2379 | if (bfd_bwrite (abfd->tdata.mmo_data->created, 4, abfd) != 4) | |
0a1b45a2 | 2380 | return false; |
3c3bdf30 | 2381 | |
0a1b45a2 | 2382 | return true; |
3c3bdf30 NC |
2383 | } |
2384 | ||
2385 | /* Write the LOP_POST record, with global register initializations. | |
2386 | Z is the Z field of the LOP_POST, corresponding to 255 - number of | |
2387 | registers at DATA. The Z = 255 field is filled in with the | |
2388 | start-address. */ | |
2389 | ||
0a1b45a2 | 2390 | static bool |
278b4623 | 2391 | mmo_internal_write_post (bfd *abfd, int z, asection *sec) |
3c3bdf30 NC |
2392 | { |
2393 | int i; | |
2394 | bfd_byte buf[8]; | |
2395 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_POST << 16) | z); | |
2396 | ||
2397 | for (i = z; i < 255; i++) | |
2398 | { | |
2399 | bfd_byte *data = mmo_get_loc (sec, i * 8, 8); | |
2400 | ||
2401 | if (bfd_bwrite (data, 8, abfd) != 8) | |
0a1b45a2 | 2402 | return false; |
3c3bdf30 NC |
2403 | } |
2404 | ||
2405 | /* For Z == $255, we always emit the start location; supposedly Main, | |
2406 | but we have it handy at bfd_get_start_address. If we're called with | |
2407 | Z == 255, don't assume DATA is valid. */ | |
2408 | bfd_put_64 (abfd, bfd_get_start_address (abfd), buf); | |
2409 | ||
82e51918 | 2410 | return ! abfd->tdata.mmo_data->have_error && bfd_bwrite (buf, 8, abfd) == 8; |
3c3bdf30 NC |
2411 | } |
2412 | ||
2413 | /* Translate to and from BFD flags. This is to make sure that we don't | |
2414 | get bitten by BFD flag number changes. */ | |
2415 | ||
2416 | static flagword | |
278b4623 | 2417 | mmo_sec_flags_from_bfd_flags (flagword flags) |
3c3bdf30 NC |
2418 | { |
2419 | flagword oflags = 0; | |
2420 | ||
2421 | if (flags & SEC_ALLOC) | |
2422 | oflags |= MMO_SEC_ALLOC; | |
2423 | if (flags & SEC_LOAD) | |
2424 | oflags |= MMO_SEC_LOAD; | |
2425 | if (flags & SEC_RELOC) | |
2426 | oflags |= MMO_SEC_RELOC; | |
2427 | if (flags & SEC_READONLY) | |
2428 | oflags |= MMO_SEC_READONLY; | |
2429 | if (flags & SEC_CODE) | |
2430 | oflags |= MMO_SEC_CODE; | |
2431 | if (flags & SEC_DATA) | |
2432 | oflags |= MMO_SEC_DATA; | |
2433 | if (flags & SEC_NEVER_LOAD) | |
2434 | oflags |= MMO_SEC_NEVER_LOAD; | |
2435 | if (flags & SEC_IS_COMMON) | |
2436 | oflags |= MMO_SEC_IS_COMMON; | |
2437 | if (flags & SEC_DEBUGGING) | |
2438 | oflags |= MMO_SEC_DEBUGGING; | |
2439 | ||
2440 | return oflags; | |
2441 | } | |
2442 | ||
2443 | static flagword | |
278b4623 | 2444 | bfd_sec_flags_from_mmo_flags (flagword flags) |
3c3bdf30 NC |
2445 | { |
2446 | flagword oflags = 0; | |
2447 | ||
2448 | if (flags & MMO_SEC_ALLOC) | |
2449 | oflags |= SEC_ALLOC; | |
2450 | if (flags & MMO_SEC_LOAD) | |
2451 | oflags |= SEC_LOAD; | |
2452 | if (flags & MMO_SEC_RELOC) | |
2453 | oflags |= SEC_RELOC; | |
2454 | if (flags & MMO_SEC_READONLY) | |
2455 | oflags |= SEC_READONLY; | |
2456 | if (flags & MMO_SEC_CODE) | |
2457 | oflags |= SEC_CODE; | |
2458 | if (flags & MMO_SEC_DATA) | |
2459 | oflags |= SEC_DATA; | |
2460 | if (flags & MMO_SEC_NEVER_LOAD) | |
2461 | oflags |= SEC_NEVER_LOAD; | |
2462 | if (flags & MMO_SEC_IS_COMMON) | |
2463 | oflags |= SEC_IS_COMMON; | |
2464 | if (flags & MMO_SEC_DEBUGGING) | |
2465 | oflags |= SEC_DEBUGGING; | |
2466 | ||
2467 | return oflags; | |
2468 | } | |
2469 | ||
aa69fe43 HPN |
2470 | /* Return TRUE iff the leading or trailing tetrabyte in SEC is defined and |
2471 | is 0. */ | |
2472 | ||
0a1b45a2 | 2473 | static bool |
278b4623 | 2474 | mmo_has_leading_or_trailing_zero_tetra_p (bfd *abfd, asection *sec) |
aa69fe43 | 2475 | { |
fd361982 | 2476 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2477 | |
2478 | if (sec->size < 4) | |
0a1b45a2 | 2479 | return false; |
aa69fe43 HPN |
2480 | |
2481 | if (bfd_get_32 (abfd, mmo_get_loc (sec, secaddr, 4)) == 0 | |
2482 | && bfd_get_32 (abfd, | |
2483 | mmo_get_loc (sec, secaddr + sec->size - 4, 4)) == 0) | |
0a1b45a2 | 2484 | return true; |
aa69fe43 | 2485 | |
0a1b45a2 | 2486 | return false; |
aa69fe43 HPN |
2487 | } |
2488 | ||
3c3bdf30 NC |
2489 | /* Write a section. */ |
2490 | ||
0a1b45a2 | 2491 | static bool |
278b4623 | 2492 | mmo_internal_write_section (bfd *abfd, asection *sec) |
3c3bdf30 NC |
2493 | { |
2494 | /* We do it differently depending on what section this is: | |
2495 | ||
2496 | ".text": Output, prepended by information about the first source file | |
2497 | (not yet implemented.) | |
2498 | ||
2499 | ".data": Output. | |
2500 | ||
2501 | (".MMIX.reg_contents": Not handled here.) | |
2502 | ||
2503 | Anything else: Output inside a lop_spec 80, in the format described | |
2504 | above. */ | |
2505 | ||
2506 | if (strcmp (sec->name, MMO_TEXT_SECTION_NAME) == 0) | |
aa69fe43 | 2507 | { |
fd361982 | 2508 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2509 | |
2510 | /* Because leading and trailing zeros are omitted in output, we need to | |
2511 | specify the section boundaries so they're correct when the file | |
2512 | is read in again. That's also the case if this section is | |
2513 | specified as not within its usual boundaries or alignments. */ | |
2514 | if (sec->size != 0 | |
2515 | && (secaddr + sec->size >= (bfd_vma) 1 << 56 | |
2516 | || (secaddr & 3) != 0 | |
2517 | || (sec->size & 3) != 0 | |
2518 | || mmo_has_leading_or_trailing_zero_tetra_p (abfd, sec))) | |
2519 | { | |
2520 | if (!mmo_write_section_description (abfd, sec)) | |
0a1b45a2 | 2521 | return false; |
aa69fe43 HPN |
2522 | } |
2523 | ||
2524 | /* FIXME: Output source file name and line number. */ | |
2525 | return mmo_write_loc_chunk_list (abfd, mmo_section_data (sec)->head); | |
2526 | } | |
3c3bdf30 | 2527 | else if (strcmp (sec->name, MMO_DATA_SECTION_NAME) == 0) |
aa69fe43 | 2528 | { |
fd361982 | 2529 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2530 | |
2531 | /* Same goes as for MMO_TEXT_SECTION_NAME above. */ | |
2532 | if (sec->size != 0 | |
2533 | && (secaddr < (bfd_vma) 0x20 << 56 | |
2534 | || secaddr + sec->size >= (bfd_vma) 0x21 << 56 | |
2535 | || (secaddr & 3) != 0 | |
2536 | || (sec->size & 3) != 0 | |
2537 | || mmo_has_leading_or_trailing_zero_tetra_p (abfd, sec))) | |
2538 | { | |
2539 | if (!mmo_write_section_description (abfd, sec)) | |
0a1b45a2 | 2540 | return false; |
aa69fe43 HPN |
2541 | } |
2542 | ||
2543 | return mmo_write_loc_chunk_list (abfd, mmo_section_data (sec)->head); | |
2544 | } | |
3c3bdf30 NC |
2545 | else if (strcmp (sec->name, MMIX_REG_CONTENTS_SECTION_NAME) == 0) |
2546 | /* Not handled here. */ | |
2547 | { | |
2548 | /* This would normally be an abort call since this can't happen, but | |
07d6d2b8 | 2549 | we don't do that. */ |
3c3bdf30 | 2550 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2551 | return false; |
3c3bdf30 | 2552 | } |
08dedd66 | 2553 | else if (startswith (sec->name, MMIX_OTHER_SPEC_SECTION_PREFIX)) |
3c3bdf30 NC |
2554 | { |
2555 | int n = atoi (sec->name + strlen (MMIX_OTHER_SPEC_SECTION_PREFIX)); | |
0112cd26 | 2556 | |
3c3bdf30 | 2557 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_SPEC << 16) | n); |
82e51918 | 2558 | return (! abfd->tdata.mmo_data->have_error |
68bfbfcc | 2559 | && mmo_write_chunk_list (abfd, mmo_section_data (sec)->head)); |
3c3bdf30 NC |
2560 | } |
2561 | /* Ignore sections that are just allocated or empty; we write out | |
2562 | _contents_ here. */ | |
fd361982 | 2563 | else if ((bfd_section_flags (sec) & SEC_HAS_CONTENTS) != 0 |
eea6121a | 2564 | && sec->size != 0) |
3c3bdf30 | 2565 | { |
aa69fe43 | 2566 | if (!mmo_write_section_description (abfd, sec)) |
0a1b45a2 | 2567 | return false; |
aa69fe43 HPN |
2568 | |
2569 | /* Writing a LOP_LOC ends the LOP_SPEC data, and makes data actually | |
2570 | loaded. */ | |
fd361982 | 2571 | if (bfd_section_flags (sec) & SEC_LOAD) |
aa69fe43 HPN |
2572 | return (! abfd->tdata.mmo_data->have_error |
2573 | && mmo_write_loc_chunk_list (abfd, | |
2574 | mmo_section_data (sec)->head)); | |
2575 | return (! abfd->tdata.mmo_data->have_error | |
2576 | && mmo_write_chunk_list (abfd, mmo_section_data (sec)->head)); | |
2577 | } | |
2578 | ||
2579 | /* Some section without contents. */ | |
0a1b45a2 | 2580 | return true; |
aa69fe43 HPN |
2581 | } |
2582 | ||
2583 | /* Write the description of a section, extended-mmo-style. */ | |
2584 | ||
0a1b45a2 | 2585 | static bool |
278b4623 | 2586 | mmo_write_section_description (bfd *abfd, asection *sec) |
aa69fe43 HPN |
2587 | { |
2588 | /* Keep the following document-comment formatted the way it is. */ | |
3c3bdf30 NC |
2589 | /* |
2590 | INODE | |
2591 | mmo section mapping, , Symbol-table, mmo | |
2592 | SUBSECTION | |
2593 | mmo section mapping | |
2594 | ||
2595 | The implementation in BFD uses special data type 80 (decimal) to | |
2596 | encapsulate and describe named sections, containing e.g.@: debug | |
2597 | information. If needed, any datum in the encapsulation will be | |
2598 | quoted using lop_quote. First comes a 32-bit word holding the | |
2599 | number of 32-bit words containing the zero-terminated zero-padded | |
2600 | segment name. After the name there's a 32-bit word holding flags | |
2601 | describing the section type. Then comes a 64-bit big-endian word | |
2602 | with the section length (in bytes), then another with the section | |
2603 | start address. Depending on the type of section, the contents | |
2604 | might follow, zero-padded to 32-bit boundary. For a loadable | |
2605 | section (such as data or code), the contents might follow at some | |
2606 | later point, not necessarily immediately, as a lop_loc with the | |
2607 | same start address as in the section description, followed by the | |
2608 | contents. This in effect forms a descriptor that must be emitted | |
2609 | before the actual contents. Sections described this way must not | |
2610 | overlap. | |
2611 | ||
2612 | For areas that don't have such descriptors, synthetic sections are | |
2613 | formed by BFD. Consecutive contents in the two memory areas | |
2614 | @samp{0x0000@dots{}00} to @samp{0x01ff@dots{}ff} and | |
2615 | @samp{0x2000@dots{}00} to @samp{0x20ff@dots{}ff} are entered in | |
2616 | sections named <<.text>> and <<.data>> respectively. If an area | |
2617 | is not otherwise described, but would together with a neighboring | |
2618 | lower area be less than @samp{0x40000000} bytes long, it is joined | |
2619 | with the lower area and the gap is zero-filled. For other cases, | |
2620 | a new section is formed, named <<.MMIX.sec.@var{n}>>. Here, | |
2621 | @var{n} is a number, a running count through the mmo file, | |
2622 | starting at 0. | |
2623 | ||
2624 | EXAMPLE | |
2625 | A loadable section specified as: | |
2626 | ||
2627 | | .section secname,"ax" | |
2628 | | TETRA 1,2,3,4,-1,-2009 | |
2629 | | BYTE 80 | |
2630 | ||
2631 | and linked to address @samp{0x4}, is represented by the sequence: | |
2632 | ||
2633 | | 0x98080050 - lop_spec 80 | |
2634 | | 0x00000002 - two 32-bit words for the section name | |
2635 | | 0x7365636e - "secn" | |
2636 | | 0x616d6500 - "ame\0" | |
2637 | | 0x00000033 - flags CODE, READONLY, LOAD, ALLOC | |
2638 | | 0x00000000 - high 32 bits of section length | |
2639 | | 0x0000001c - section length is 28 bytes; 6 * 4 + 1 + alignment to 32 bits | |
2640 | | 0x00000000 - high 32 bits of section address | |
2641 | | 0x00000004 - section address is 4 | |
2642 | | 0x98010002 - 64 bits with address of following data | |
dfa36a69 HPN |
2643 | | 0x00000000 - high 32 bits of address |
2644 | | 0x00000004 - low 32 bits: data starts at address 4 | |
3c3bdf30 NC |
2645 | | 0x00000001 - 1 |
2646 | | 0x00000002 - 2 | |
2647 | | 0x00000003 - 3 | |
2648 | | 0x00000004 - 4 | |
2649 | | 0xffffffff - -1 | |
2650 | | 0xfffff827 - -2009 | |
2651 | | 0x50000000 - 80 as a byte, padded with zeros. | |
2652 | ||
2653 | Note that the lop_spec wrapping does not include the section | |
2654 | contents. Compare this to a non-loaded section specified as: | |
2655 | ||
2656 | | .section thirdsec | |
2657 | | TETRA 200001,100002 | |
2658 | | BYTE 38,40 | |
2659 | ||
2660 | This, when linked to address @samp{0x200000000000001c}, is | |
2661 | represented by: | |
2662 | ||
2663 | | 0x98080050 - lop_spec 80 | |
2664 | | 0x00000002 - two 32-bit words for the section name | |
2665 | | 0x7365636e - "thir" | |
2666 | | 0x616d6500 - "dsec" | |
2667 | | 0x00000010 - flag READONLY | |
2668 | | 0x00000000 - high 32 bits of section length | |
2669 | | 0x0000000c - section length is 12 bytes; 2 * 4 + 2 + alignment to 32 bits | |
dfa36a69 HPN |
2670 | | 0x20000000 - high 32 bits of address |
2671 | | 0x0000001c - low 32 bits of address 0x200000000000001c | |
3c3bdf30 NC |
2672 | | 0x00030d41 - 200001 |
2673 | | 0x000186a2 - 100002 | |
2674 | | 0x26280000 - 38, 40 as bytes, padded with zeros | |
2675 | ||
dfa36a69 | 2676 | For the latter example, the section contents must not be |
3c3bdf30 NC |
2677 | loaded in memory, and is therefore specified as part of the |
2678 | special data. The address is usually unimportant but might | |
2679 | provide information for e.g.@: the DWARF 2 debugging format. */ | |
2680 | ||
aa69fe43 HPN |
2681 | mmo_write_tetra_raw (abfd, LOP_SPEC_SECTION); |
2682 | mmo_write_tetra (abfd, (strlen (sec->name) + 3) / 4); | |
f075ee0c | 2683 | mmo_write_chunk (abfd, (bfd_byte *) sec->name, strlen (sec->name)); |
aa69fe43 HPN |
2684 | mmo_flush_chunk (abfd); |
2685 | /* FIXME: We can get debug sections (.debug_line & Co.) with a section | |
2686 | flag still having SEC_RELOC set. Investigate. This might be true | |
2687 | for all alien sections; perhaps mmo.em should clear that flag. Might | |
2688 | be related to weak references. */ | |
2689 | mmo_write_tetra (abfd, | |
fd361982 | 2690 | mmo_sec_flags_from_bfd_flags (bfd_section_flags (sec))); |
aa69fe43 | 2691 | mmo_write_octa (abfd, sec->size); |
fd361982 | 2692 | mmo_write_octa (abfd, bfd_section_vma (sec)); |
0a1b45a2 | 2693 | return true; |
3c3bdf30 NC |
2694 | } |
2695 | ||
2696 | /* We save up all data before output. */ | |
2697 | ||
0a1b45a2 | 2698 | static bool |
278b4623 HPN |
2699 | mmo_set_section_contents (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec, |
2700 | const void *location, file_ptr offset, | |
2701 | bfd_size_type bytes_to_do) | |
3c3bdf30 NC |
2702 | { |
2703 | /* Iterate over diminishing chunk sizes, copying contents. */ | |
2704 | while (bytes_to_do) | |
2705 | { | |
2706 | /* A minor song-and-dance to make sure we're not bitten by the | |
2707 | distant possibility of the cast from bfd_vma to int making the | |
2708 | chunk zero-sized. */ | |
2709 | int chunk_size | |
2710 | = (int) bytes_to_do != 0 ? bytes_to_do : MMO_SEC_CONTENTS_CHUNK_SIZE; | |
2711 | bfd_byte *loc; | |
2712 | ||
2713 | do | |
2714 | loc = mmo_get_loc (sec, sec->vma + offset, chunk_size); | |
2715 | while (loc == NULL && (chunk_size /= 2) != 0); | |
2716 | ||
2717 | if (chunk_size == 0) | |
0a1b45a2 | 2718 | return false; |
3c3bdf30 NC |
2719 | |
2720 | memcpy (loc, location, chunk_size); | |
2721 | ||
28cc9170 | 2722 | location = (bfd_byte *) location + chunk_size; |
3c3bdf30 NC |
2723 | bytes_to_do -= chunk_size; |
2724 | offset += chunk_size; | |
2725 | } | |
0a1b45a2 | 2726 | return true; |
3c3bdf30 NC |
2727 | } |
2728 | ||
2729 | /* Add a symbol to a trie-tree. */ | |
2730 | ||
0a1b45a2 | 2731 | static bool |
278b4623 HPN |
2732 | mmo_internal_add_3_sym (bfd *abfd, struct mmo_symbol_trie *rootp, |
2733 | const struct mmo_symbol *symp) | |
3c3bdf30 | 2734 | { |
3f9c735e | 2735 | const char *name = symp->name; |
3c3bdf30 NC |
2736 | struct mmo_symbol_trie *trie = rootp; |
2737 | struct mmo_symbol_trie **triep = NULL; | |
2738 | ||
2739 | while (*name && trie != NULL) | |
2740 | { | |
2741 | if (*name < trie->symchar) | |
2742 | { | |
2743 | triep = &trie->left; | |
2744 | trie = trie->left; | |
2745 | } | |
2746 | else if (*name > trie->symchar) | |
2747 | { | |
2748 | triep = &trie->right; | |
2749 | trie = trie->right; | |
2750 | } | |
2751 | else if (*name == trie->symchar) | |
2752 | { | |
2753 | triep = &trie->middle; | |
2754 | name++; | |
2755 | ||
2756 | /* Make sure "trie" points to where we should fill in the | |
2757 | current symbol whenever we've iterated through "name". We | |
2758 | would lose the right position if we encounter "foobar" then | |
2759 | "foo". */ | |
2760 | if (*name) | |
2761 | trie = trie->middle; | |
2762 | } | |
2763 | } | |
2764 | ||
2765 | while (*name != 0) | |
2766 | { | |
2767 | /* Create middle branches for the rest of the characters. */ | |
2768 | trie = bfd_zalloc (abfd, sizeof (struct mmo_symbol_trie)); | |
2769 | *triep = trie; | |
2770 | trie->symchar = *name++; | |
2771 | triep = &trie->middle; | |
2772 | } | |
2773 | ||
2774 | /* We discover a duplicate symbol rather late in the process, but still; | |
2775 | we discover it and bail out. */ | |
2776 | if (trie->sym.name != NULL) | |
2777 | { | |
4eca0228 | 2778 | _bfd_error_handler |
695344c0 | 2779 | /* xgettext:c-format */ |
871b3ab2 | 2780 | (_("%pB: invalid symbol table: duplicate symbol `%s'\n"), |
dae82561 | 2781 | abfd, trie->sym.name); |
3c3bdf30 | 2782 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2783 | return false; |
3c3bdf30 NC |
2784 | } |
2785 | ||
2786 | memcpy (&trie->sym, symp, sizeof *symp); | |
0a1b45a2 | 2787 | return true; |
3c3bdf30 NC |
2788 | } |
2789 | ||
2790 | /* Find out the length of the serialized version of a trie in bytes. */ | |
2791 | ||
2792 | static unsigned int | |
278b4623 | 2793 | mmo_internal_3_length (bfd *abfd, struct mmo_symbol_trie *trie) |
3c3bdf30 NC |
2794 | { |
2795 | /* First, one for the control byte. */ | |
2796 | unsigned int length = 1; | |
2797 | ||
2798 | if (trie == NULL) | |
2799 | return 0; | |
2800 | ||
2801 | /* Add in the recursion to the left. */ | |
2802 | length += mmo_internal_3_length (abfd, trie->left); | |
2803 | ||
2804 | /* Add in the middle trie and the character. */ | |
2805 | length += 1 + mmo_internal_3_length (abfd, trie->middle); | |
2806 | ||
2807 | /* Add in the recursion to the right. */ | |
2808 | length += mmo_internal_3_length (abfd, trie->right); | |
2809 | ||
2810 | /* Add in bytes for the symbol (if this is an endnode). */ | |
2811 | if (trie->sym.name != NULL) | |
2812 | { | |
2813 | unsigned int serno = trie->sym.serno; | |
2814 | ||
2815 | /* First what it takes to encode the value. */ | |
2816 | if (trie->sym.sym_type == mmo_reg_sym) | |
2817 | length++; | |
2818 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2819 | length += 2; | |
2820 | else | |
2821 | { | |
2822 | bfd_vma value = trie->sym.value; | |
2823 | ||
2824 | /* Coded in one to eight following bytes. */ | |
2825 | if (trie->sym.sym_type == mmo_data_sym) | |
2826 | value -= (bfd_vma) 0x20 << 56; | |
2827 | ||
2828 | do | |
2829 | { | |
2830 | value >>= 8; | |
2831 | length++; | |
2832 | } | |
2833 | while (value != 0); | |
2834 | } | |
2835 | ||
2836 | /* Find out what it takes to encode the serial number. */ | |
2837 | do | |
2838 | { | |
2839 | serno >>= 7; | |
2840 | length++; | |
2841 | } | |
2842 | while (serno != 0); | |
2843 | } | |
2844 | ||
2845 | return length; | |
2846 | } | |
2847 | ||
2848 | /* Helper function for outputting the serial number of a symbol, output as | |
2849 | a variant of leb128 (see dwarf2 documentation) which could be called | |
2850 | beb128. Using a helper function and recursion simplifies debugging. */ | |
2851 | ||
2852 | static void | |
278b4623 | 2853 | mmo_beb128_out (bfd *abfd, int serno, int marker) |
3c3bdf30 NC |
2854 | { |
2855 | if (serno & ~0x7f) | |
2856 | mmo_beb128_out (abfd, serno >> 7, 0); | |
2857 | mmo_write_byte (abfd, marker | (serno & 0x7f)); | |
2858 | } | |
2859 | ||
2860 | /* Serialize a trie. */ | |
2861 | ||
2862 | static void | |
278b4623 | 2863 | mmo_internal_3_dump (bfd *abfd, struct mmo_symbol_trie *trie) |
3c3bdf30 NC |
2864 | { |
2865 | bfd_byte control = 0; | |
2866 | ||
2867 | if (trie == NULL) | |
2868 | return; | |
2869 | ||
2870 | if (trie->left) | |
2871 | control |= MMO3_LEFT; | |
2872 | ||
2873 | if (trie->middle) | |
2874 | control |= MMO3_MIDDLE; | |
2875 | ||
2876 | if (trie->right) | |
2877 | control |= MMO3_RIGHT; | |
2878 | ||
2879 | if (trie->sym.name != NULL) | |
2880 | { | |
2881 | /* Encode the symbol type and length of value bytes. */ | |
2882 | if (trie->sym.sym_type == mmo_reg_sym) | |
2883 | control |= MMO3_REGQUAL_BITS; | |
2884 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2885 | control |= MMO3_UNDEF; | |
2886 | else | |
2887 | { | |
2888 | bfd_vma value = trie->sym.value; | |
2889 | ||
2890 | /* Coded in 1..8 following bytes. */ | |
2891 | if (trie->sym.sym_type == mmo_data_sym) | |
2892 | { | |
2893 | control |= MMO3_DATA; | |
2894 | value -= (bfd_vma) 0x20 << 56; | |
2895 | } | |
2896 | ||
2897 | do | |
2898 | { | |
2899 | value >>= 8; | |
2900 | control++; | |
2901 | } | |
2902 | while (value != 0); | |
2903 | } | |
2904 | } | |
2905 | ||
2906 | /* The control byte is output before recursing. */ | |
2907 | mmo_write_byte (abfd, control); | |
2908 | ||
2909 | mmo_internal_3_dump (abfd, trie->left); | |
2910 | ||
2911 | if (control & MMO3_SYMBITS) | |
2912 | { | |
2913 | mmo_write_byte (abfd, trie->symchar); | |
2914 | ||
2915 | if (trie->sym.name != NULL) | |
2916 | { | |
2917 | if (trie->sym.sym_type == mmo_reg_sym) | |
2918 | mmo_write_byte (abfd, trie->sym.value); | |
2919 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2920 | { | |
2921 | mmo_write_byte (abfd, 0); | |
2922 | mmo_write_byte (abfd, 0); | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | bfd_vma value = trie->sym.value; | |
2927 | ||
2928 | bfd_byte byte_n = control & 15; | |
2929 | ||
2930 | /* Coded in 1..8 following bytes. Note that the value is | |
2931 | shifted out big-endian. */ | |
2932 | if (trie->sym.sym_type == mmo_data_sym) | |
2933 | { | |
2934 | value -= (bfd_vma) 0x20 << 56; | |
2935 | byte_n -= 8; | |
2936 | } | |
2937 | ||
2938 | do | |
2939 | { | |
2940 | mmo_write_byte (abfd, (value >> ((byte_n - 1) * 8)) & 0xff); | |
2941 | byte_n--; | |
2942 | } | |
2943 | while (byte_n != 0); | |
2944 | } | |
2945 | ||
2946 | mmo_beb128_out (abfd, trie->sym.serno, 128); | |
2947 | } | |
2948 | mmo_internal_3_dump (abfd, trie->middle); | |
2949 | } | |
2950 | mmo_internal_3_dump (abfd, trie->right); | |
2951 | } | |
2952 | ||
dfa36a69 | 2953 | /* Write symbols in mmo format. Also write the lop_end terminator. */ |
3c3bdf30 | 2954 | |
0a1b45a2 | 2955 | static bool |
278b4623 | 2956 | mmo_write_symbols_and_terminator (bfd *abfd) |
3c3bdf30 NC |
2957 | { |
2958 | int count = bfd_get_symcount (abfd); | |
3c3bdf30 | 2959 | asymbol **table; |
dfa36a69 HPN |
2960 | asymbol **orig_table = bfd_get_outsymbols (abfd); |
2961 | int serno; | |
3c3bdf30 NC |
2962 | struct mmo_symbol_trie root; |
2963 | int trie_len; | |
2964 | int i; | |
2965 | bfd_byte buf[4]; | |
2966 | ||
2967 | /* Create a symbol for "Main". */ | |
dfa36a69 | 2968 | asymbol *fakemain = bfd_make_empty_symbol (abfd); |
3c3bdf30 | 2969 | |
dfa36a69 HPN |
2970 | fakemain->flags = BSF_GLOBAL; |
2971 | fakemain->value = bfd_get_start_address (abfd); | |
2972 | fakemain->name = MMIX_START_SYMBOL_NAME; | |
2973 | fakemain->section = bfd_abs_section_ptr; | |
3c3bdf30 NC |
2974 | |
2975 | memset (&root, 0, sizeof (root)); | |
2976 | ||
2977 | /* Make all symbols take a left turn. */ | |
2978 | root.symchar = 0xff; | |
2979 | ||
dfa36a69 HPN |
2980 | /* There must always be a ":Main", so we'll add one if there are no |
2981 | symbols. Make sure we have room for it. */ | |
2982 | table = bfd_alloc (abfd, (count + 1) * sizeof (asymbol *)); | |
2983 | if (table == NULL) | |
0a1b45a2 | 2984 | return false; |
dfa36a69 | 2985 | |
00bc5e68 AM |
2986 | if (count != 0) |
2987 | memcpy (table, orig_table, count * sizeof (asymbol *)); | |
dfa36a69 HPN |
2988 | |
2989 | /* Move :Main (if there is one) to the first position. This is | |
2990 | necessary to get the same layout of the trie-tree when linking as | |
2991 | when objcopying the result as in the objcopy.exp test "simple objcopy | |
2992 | of executable". It also automatically takes care of assigning serial | |
2993 | number 1 to :Main (as is mandatory). */ | |
2994 | for (i = 0; i < count; i++) | |
2995 | if (table[i] != NULL | |
2996 | && strcmp (table[i]->name, MMIX_START_SYMBOL_NAME) == 0 | |
2997 | && (table[i]->flags & (BSF_DEBUGGING|BSF_GLOBAL)) == BSF_GLOBAL) | |
2998 | { | |
2999 | asymbol *mainsym = table[i]; | |
f9c62303 HPN |
3000 | bfd_vma mainvalue |
3001 | = (mainsym->value | |
3002 | + mainsym->section->output_section->vma | |
3003 | + mainsym->section->output_offset); | |
c287bfe4 | 3004 | memcpy (table + 1, orig_table, i * sizeof (asymbol *)); |
dfa36a69 HPN |
3005 | table[0] = mainsym; |
3006 | ||
3007 | /* Check that the value assigned to :Main is the same as the entry | |
3008 | address. The default linker script asserts this. This is as | |
3009 | good a place as any to check this consistency. */ | |
c287bfe4 HPN |
3010 | if (mainvalue != bfd_get_start_address (abfd) |
3011 | && !mmo_ignore_symbol_consistency (abfd)) | |
dfa36a69 HPN |
3012 | { |
3013 | /* Arbitrary buffer to hold the printable representation of a | |
3014 | vma. */ | |
dfa36a69 HPN |
3015 | bfd_vma vma_start = bfd_get_start_address (abfd); |
3016 | ||
4eca0228 | 3017 | _bfd_error_handler |
695344c0 | 3018 | /* xgettext:c-format */ |
f493c217 AM |
3019 | (_("%pB: bad symbol definition: `Main' set to %" PRIx64 " rather" |
3020 | " than the start address %" PRIx64 "\n"), | |
3021 | abfd, mainvalue, vma_start); | |
dfa36a69 | 3022 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3023 | return false; |
dfa36a69 HPN |
3024 | } |
3025 | break; | |
3026 | } | |
3027 | if (i == count && count != 0) | |
3c3bdf30 | 3028 | { |
dfa36a69 HPN |
3029 | /* When there are symbols, there must be a :Main. There was no |
3030 | :Main, so we need to add it manually. */ | |
3031 | memcpy (table + 1, orig_table, count * sizeof (asymbol *)); | |
3032 | table[0] = fakemain; | |
3033 | count++; | |
3c3bdf30 | 3034 | } |
3c3bdf30 | 3035 | |
11509220 HPN |
3036 | /* Don't bother inspecting symbols in plugin dummy objects; their |
3037 | symbols aren't fully inspectable. */ | |
3038 | if ((abfd->flags & BFD_PLUGIN) == 0) | |
3c3bdf30 | 3039 | { |
11509220 HPN |
3040 | for (i = 0, serno = 1; i < count && table[i] != NULL; i++) |
3041 | { | |
3042 | asymbol *s = table[i]; | |
3c3bdf30 | 3043 | |
11509220 HPN |
3044 | /* It's not enough to consult bfd_is_local_label, since it does not |
3045 | mean "local" in the sense of linkable-and-observable-after-link. | |
3046 | Let's just check the BSF_GLOBAL flag. | |
3c3bdf30 | 3047 | |
11509220 HPN |
3048 | Also, don't export symbols with characters not in the |
3049 | allowed set. */ | |
3050 | if ((s->flags & (BSF_DEBUGGING|BSF_GLOBAL)) == BSF_GLOBAL | |
3051 | && strspn (s->name, | |
3052 | valid_mmo_symbol_character_set) == strlen (s->name)) | |
3c3bdf30 | 3053 | { |
11509220 HPN |
3054 | struct mmo_symbol sym; |
3055 | memset (&sym, 0, sizeof (sym)); | |
3056 | ||
3057 | /* Need to strip const here; strdup:ing would leak and the | |
3058 | existing string must be safe to reuse. */ | |
3059 | sym.name = (char *) s->name; | |
3060 | sym.value = | |
3061 | s->value | |
3062 | + s->section->output_section->vma | |
3063 | + s->section->output_offset; | |
3064 | ||
3065 | if (bfd_is_und_section (s->section)) | |
3066 | sym.sym_type = mmo_undef_sym; | |
3067 | else if (strcmp (s->section->name, MMO_DATA_SECTION_NAME) == 0 | |
3068 | /* The encoding of data symbols require that the "rest" | |
3069 | of the value fits in 6 bytes, so the upper two bytes | |
3070 | must be 0x2000. All other symbols get to be the | |
3071 | absolute type. */ | |
3072 | && (sym.value >> 48) == 0x2000) | |
3073 | sym.sym_type = mmo_data_sym; | |
3074 | else if (strcmp (s->section->name, MMIX_REG_SECTION_NAME) == 0) | |
3075 | sym.sym_type = mmo_reg_sym; | |
3076 | else if (strcmp (s->section->name, | |
3077 | MMIX_REG_CONTENTS_SECTION_NAME) == 0) | |
3078 | { | |
3079 | sym.sym_type = mmo_reg_sym; | |
3080 | sym.value /= 8; | |
3081 | } | |
3082 | else | |
3083 | sym.sym_type = mmo_abs_sym; | |
3c3bdf30 | 3084 | |
11509220 HPN |
3085 | /* FIXME: We assume the order of the received symbols is an |
3086 | ordered mapping of the serial numbers. This is not | |
3087 | necessarily true if we e.g. objcopy a mmo file to another and | |
3088 | there are gaps in the numbering. Not sure if this can | |
3089 | happen. Not sure what to do. */ | |
3090 | sym.serno = serno++; | |
3c3bdf30 | 3091 | |
11509220 | 3092 | if (! mmo_internal_add_3_sym (abfd, &root, &sym)) |
0a1b45a2 | 3093 | return false; |
11509220 | 3094 | } |
3c3bdf30 NC |
3095 | } |
3096 | } | |
3097 | ||
3098 | /* Change the root node to be a ":"-prefix. */ | |
3099 | root.symchar = ':'; | |
3100 | root.middle = root.left; | |
3101 | root.right = NULL; | |
3102 | root.left = NULL; | |
3103 | ||
3104 | /* We have to find out if we can fit the whole symbol table in the mmo | |
3105 | symtab. It would be bad to assume we can always fit it in 262144 | |
3106 | bytes. If we can't, just leave the Main symbol. */ | |
3107 | trie_len = (mmo_internal_3_length (abfd, &root) + 3)/4; | |
3108 | ||
3109 | if (trie_len > 0xffff) | |
3110 | { | |
3111 | /* Test this code by using a lower limit in the test above and check | |
3112 | that the single "Main" symbol is emitted and handled properly. | |
3113 | There's no specific test-case. */ | |
3114 | struct mmo_symbol sym; | |
3115 | ||
4eca0228 | 3116 | _bfd_error_handler |
695344c0 | 3117 | /* xgettext:c-format */ |
871b3ab2 | 3118 | (_("%pB: warning: symbol table too large for mmo, larger than 65535" |
278b4623 | 3119 | " 32-bit words: %d. Only `Main' will be emitted.\n"), |
dae82561 | 3120 | abfd, trie_len); |
3c3bdf30 NC |
3121 | |
3122 | memset (&sym, 0, sizeof (sym)); | |
3123 | sym.sym_type = mmo_abs_sym; | |
3124 | sym.name = MMIX_START_SYMBOL_NAME; | |
3125 | sym.serno = 1; | |
3126 | sym.value = bfd_get_start_address (abfd); | |
3127 | ||
3128 | /* Then patch up a symbol table to be just the ":Main" symbol. */ | |
3129 | memset (&root, 0, sizeof (root)); | |
3130 | root.left = root.middle; | |
3131 | root.symchar = 0xff; | |
3132 | root.middle = NULL; | |
3133 | root.right = NULL; | |
3134 | ||
3135 | if (! mmo_internal_add_3_sym (abfd, &root, &sym)) | |
0a1b45a2 | 3136 | return false; |
3c3bdf30 NC |
3137 | |
3138 | root.symchar = ':'; | |
3139 | root.middle = root.left; | |
3140 | root.right = NULL; | |
3141 | root.left = NULL; | |
3142 | ||
3143 | trie_len = (mmo_internal_3_length (abfd, &root) + 3)/4; | |
3144 | } | |
3145 | ||
3146 | /* Reset the written-bytes counter. */ | |
3147 | abfd->tdata.mmo_data->byte_no = 0; | |
3148 | ||
3149 | /* Put out the lop_stab mark. */ | |
3150 | bfd_put_32 (abfd, (LOP << 24) | (LOP_STAB << 16), buf); | |
3151 | if (bfd_bwrite (buf, 4, abfd) != 4) | |
0a1b45a2 | 3152 | return false; |
3c3bdf30 NC |
3153 | |
3154 | /* Dump out symbols. */ | |
3155 | mmo_internal_3_dump (abfd, &root); | |
3156 | ||
3157 | if (trie_len != (abfd->tdata.mmo_data->byte_no + 3)/4) | |
3158 | { | |
3159 | /* I haven't seen this trig. It seems no use claiming this case | |
3160 | isn't debugged and abort if we get here. Instead emit a | |
3161 | diagnostic and fail "normally". */ | |
4eca0228 | 3162 | _bfd_error_handler |
695344c0 | 3163 | /* xgettext:c-format */ |
871b3ab2 | 3164 | (_("%pB: internal error, symbol table changed size from %d to %d" |
278b4623 | 3165 | " words\n"), |
dae82561 | 3166 | abfd, trie_len, |
3c3bdf30 NC |
3167 | (abfd->tdata.mmo_data->byte_no + 3)/4); |
3168 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3169 | return false; |
3c3bdf30 NC |
3170 | } |
3171 | ||
3172 | /* Dump out remaining bytes in the buffer and handle I/O errors by | |
3173 | propagating errors. */ | |
3174 | if ((abfd->tdata.mmo_data->byte_no % 4) != 0 | |
3175 | || abfd->tdata.mmo_data->have_error) | |
3176 | { | |
3177 | memset (abfd->tdata.mmo_data->buf + (abfd->tdata.mmo_data->byte_no % 4), | |
3178 | 0, 4 - (abfd->tdata.mmo_data->byte_no % 4)); | |
3179 | ||
3180 | if (abfd->tdata.mmo_data->have_error | |
3181 | || bfd_bwrite (abfd->tdata.mmo_data->buf, 4, abfd) != 4) | |
0a1b45a2 | 3182 | return false; |
3c3bdf30 NC |
3183 | } |
3184 | ||
3185 | bfd_put_32 (abfd, (LOP << 24) | (LOP_END << 16) | trie_len, buf); | |
3186 | return bfd_bwrite (buf, 4, abfd) == 4; | |
3187 | } | |
3188 | ||
3189 | /* Write section unless it is the register contents section. For that, we | |
3190 | instead store the section in the supplied pointer. This function is | |
3191 | used through bfd_map_over_sections. */ | |
3192 | ||
3193 | static void | |
278b4623 | 3194 | mmo_write_section_unless_reg_contents (bfd *abfd, asection *sec, void *p) |
3c3bdf30 NC |
3195 | { |
3196 | struct mmo_write_sec_info *infop = (struct mmo_write_sec_info *) p; | |
3197 | ||
82e51918 | 3198 | if (! infop->retval) |
3c3bdf30 NC |
3199 | return; |
3200 | ||
3201 | if (strcmp (sec->name, MMIX_REG_CONTENTS_SECTION_NAME) == 0) | |
3202 | { | |
3203 | infop->reg_section = sec; | |
3204 | return; | |
3205 | } | |
3206 | ||
3207 | /* Exclude the convenience register section. */ | |
3208 | if (strcmp (sec->name, MMIX_REG_SECTION_NAME) == 0) | |
3209 | { | |
fd361982 | 3210 | if (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
3c3bdf30 NC |
3211 | { |
3212 | /* Make sure it hasn't got contents. It seems impossible to | |
3213 | make it carry contents, so we don't have a test-case for | |
3214 | this. */ | |
4eca0228 | 3215 | _bfd_error_handler |
695344c0 | 3216 | /* xgettext:c-format */ |
871b3ab2 | 3217 | (_("%pB: internal error, internal register section %pA had" |
278b4623 | 3218 | " contents\n"), |
dae82561 | 3219 | abfd, sec); |
3c3bdf30 | 3220 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3221 | infop->retval = false; |
3c3bdf30 NC |
3222 | return; |
3223 | } | |
3224 | ||
3225 | return; | |
3226 | } | |
3227 | ||
3228 | infop->retval = mmo_internal_write_section (abfd, sec); | |
3229 | } | |
3230 | ||
3231 | /* Do the actual output of a file. Assumes mmo_set_section_contents is | |
3232 | already called. */ | |
3233 | ||
0a1b45a2 | 3234 | static bool |
278b4623 | 3235 | mmo_write_object_contents (bfd *abfd) |
3c3bdf30 NC |
3236 | { |
3237 | struct mmo_write_sec_info wsecinfo; | |
3238 | ||
3239 | /* First, there are a few words of preamble. */ | |
3240 | if (! mmo_internal_write_header (abfd)) | |
0a1b45a2 | 3241 | return false; |
3c3bdf30 NC |
3242 | |
3243 | wsecinfo.reg_section = NULL; | |
0a1b45a2 | 3244 | wsecinfo.retval = true; |
3c3bdf30 NC |
3245 | |
3246 | bfd_map_over_sections (abfd, mmo_write_section_unless_reg_contents, | |
278b4623 | 3247 | &wsecinfo); |
3c3bdf30 | 3248 | |
82e51918 | 3249 | if (! wsecinfo.retval) |
0a1b45a2 | 3250 | return false; |
3c3bdf30 NC |
3251 | |
3252 | if (wsecinfo.reg_section != NULL) | |
3253 | { | |
3254 | asection *sec = wsecinfo.reg_section; | |
3255 | unsigned int z = (unsigned int) (sec->vma / 8); | |
3256 | ||
3257 | /* Registers 0..31 must not be global. Do sanity check on the "vma" | |
3258 | of the register contents section and check that it corresponds to | |
3259 | the length of the section. */ | |
3260 | if (z < 32 || z >= 255 || (sec->vma & 7) != 0 | |
eea6121a | 3261 | || sec->vma != 256 * 8 - sec->size - 8) |
3c3bdf30 NC |
3262 | { |
3263 | bfd_set_error (bfd_error_bad_value); | |
3264 | ||
eea6121a | 3265 | if (sec->size == 0) |
3c3bdf30 | 3266 | /* There must always be at least one such register. */ |
4eca0228 | 3267 | _bfd_error_handler |
871b3ab2 | 3268 | (_("%pB: no initialized registers; section length 0\n"), |
dae82561 | 3269 | abfd); |
3c3bdf30 NC |
3270 | else if (sec->vma > (256 - 32) * 8) |
3271 | /* Provide better error message for the case of too many | |
3272 | global registers. */ | |
4eca0228 | 3273 | _bfd_error_handler |
695344c0 | 3274 | /* xgettext:c-format */ |
2dcf00ce AM |
3275 | (_("%pB: too many initialized registers; section length %" PRId64), |
3276 | abfd, (int64_t) sec->size); | |
3c3bdf30 | 3277 | else |
4eca0228 | 3278 | _bfd_error_handler |
695344c0 | 3279 | /* xgettext:c-format */ |
871b3ab2 | 3280 | (_("%pB: invalid start address for initialized registers of" |
2dcf00ce AM |
3281 | " length %" PRId64 ": %#" PRIx64), |
3282 | abfd, (int64_t) sec->size, (uint64_t) sec->vma); | |
3c3bdf30 | 3283 | |
0a1b45a2 | 3284 | return false; |
3c3bdf30 NC |
3285 | } |
3286 | ||
3287 | if (! mmo_internal_write_post (abfd, z, sec)) | |
0a1b45a2 | 3288 | return false; |
3c3bdf30 NC |
3289 | } |
3290 | else | |
3291 | if (! mmo_internal_write_post (abfd, 255, NULL)) | |
0a1b45a2 | 3292 | return false; |
3c3bdf30 NC |
3293 | |
3294 | return mmo_write_symbols_and_terminator (abfd); | |
3295 | } | |
3296 | ||
3c3bdf30 NC |
3297 | /* If there's anything in particular in a mmo bfd that we want to free, |
3298 | make this a real function. Only do this if you see major memory | |
3299 | thrashing; zealous free:ing will cause unwanted behavior, especially if | |
3300 | you "free" memory allocated with "bfd_alloc", or even "bfd_release" a | |
3301 | block allocated with "bfd_alloc"; they're really allocated from an | |
3302 | obstack, and we don't know what was allocated there since this | |
3303 | particular allocation. */ | |
3304 | ||
3305 | #define mmo_close_and_cleanup _bfd_generic_close_and_cleanup | |
3306 | #define mmo_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3307 | ||
3308 | /* Perhaps we need to adjust this one; mmo labels (originally) without a | |
3309 | leading ':' might more appropriately be called local. */ | |
3310 | #define mmo_bfd_is_local_label_name bfd_generic_is_local_label_name | |
d00dd7dc | 3311 | #define mmo_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false |
3c3bdf30 | 3312 | |
60bb06bc L |
3313 | #define mmo_get_symbol_version_string \ |
3314 | _bfd_nosymbols_get_symbol_version_string | |
3315 | ||
3c3bdf30 NC |
3316 | /* Is this one really used or defined by anyone? */ |
3317 | #define mmo_get_lineno _bfd_nosymbols_get_lineno | |
3318 | ||
3319 | /* FIXME: We can do better on this one, if we have a dwarf2 .debug_line | |
3320 | section or if MMO line numbers are implemented. */ | |
3321 | #define mmo_find_nearest_line _bfd_nosymbols_find_nearest_line | |
9c461f7d | 3322 | #define mmo_find_line _bfd_nosymbols_find_line |
4ab527b0 | 3323 | #define mmo_find_inliner_info _bfd_nosymbols_find_inliner_info |
3f3c5c34 | 3324 | #define mmo_make_empty_symbol _bfd_generic_make_empty_symbol |
3c3bdf30 NC |
3325 | #define mmo_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
3326 | #define mmo_read_minisymbols _bfd_generic_read_minisymbols | |
3327 | #define mmo_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3328 | ||
3329 | #define mmo_get_section_contents_in_window \ | |
3330 | _bfd_generic_get_section_contents_in_window | |
3331 | #define mmo_bfd_get_relocated_section_contents \ | |
3332 | bfd_generic_get_relocated_section_contents | |
3333 | #define mmo_bfd_gc_sections bfd_generic_gc_sections | |
ae17ab41 | 3334 | #define mmo_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
3c3bdf30 NC |
3335 | #define mmo_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
3336 | #define mmo_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
2d653fc7 | 3337 | #define mmo_bfd_link_just_syms _bfd_generic_link_just_syms |
1338dd10 PB |
3338 | #define mmo_bfd_copy_link_hash_symbol_type \ |
3339 | _bfd_generic_copy_link_hash_symbol_type | |
3c3bdf30 NC |
3340 | #define mmo_bfd_final_link _bfd_generic_final_link |
3341 | #define mmo_bfd_link_split_section _bfd_generic_link_split_section | |
4f3b23b3 | 3342 | #define mmo_bfd_link_check_relocs _bfd_generic_link_check_relocs |
3c3bdf30 NC |
3343 | |
3344 | /* Strictly speaking, only MMIX uses this restricted format, but let's not | |
3345 | stop anybody from shooting themselves in the foot. */ | |
3346 | #define mmo_set_arch_mach bfd_default_set_arch_mach | |
3347 | #define mmo_bfd_relax_section bfd_generic_relax_section | |
3348 | #define mmo_bfd_merge_sections bfd_generic_merge_sections | |
72adc230 | 3349 | #define mmo_bfd_is_group_section bfd_generic_is_group_section |
cb7f4b29 | 3350 | #define mmo_bfd_group_name bfd_generic_group_name |
e61463e1 | 3351 | #define mmo_bfd_discard_group bfd_generic_discard_group |
082b7297 L |
3352 | #define mmo_section_already_linked \ |
3353 | _bfd_generic_section_already_linked | |
3023e3f6 | 3354 | #define mmo_bfd_define_common_symbol bfd_generic_define_common_symbol |
34a87bb0 | 3355 | #define mmo_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
7dba9362 | 3356 | #define mmo_bfd_define_start_stop bfd_generic_define_start_stop |
3c3bdf30 | 3357 | |
3c3bdf30 NC |
3358 | /* We want to copy time of creation, otherwise we'd use |
3359 | BFD_JUMP_TABLE_COPY (_bfd_generic). */ | |
3360 | #define mmo_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
3361 | #define mmo_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
3362 | #define mmo_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
80fccad2 | 3363 | #define mmo_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data |
3c3bdf30 NC |
3364 | #define mmo_bfd_set_private_flags _bfd_generic_bfd_set_private_flags |
3365 | #define mmo_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
3366 | ||
6d00b590 | 3367 | const bfd_target mmix_mmo_vec = |
3c3bdf30 NC |
3368 | { |
3369 | "mmo", /* name */ | |
3370 | bfd_target_mmo_flavour, | |
3371 | BFD_ENDIAN_BIG, /* target byte order */ | |
3372 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
3373 | ||
3374 | /* FIXME: Might need adjustments. */ | |
3375 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3376 | HAS_LINENO | HAS_DEBUG | | |
3377 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
3378 | ||
3379 | /* FIXME: Might need adjustments. */ | |
3380 | (SEC_CODE | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
3381 | | SEC_READONLY | SEC_EXCLUDE | SEC_DEBUGGING | SEC_IN_MEMORY), | |
3382 | /* section flags */ | |
3383 | 0, /* leading underscore */ | |
3384 | ' ', /* ar_pad_char */ | |
3385 | 16, /* ar_max_namelen */ | |
0aabe54e | 3386 | 0, /* match priority. */ |
d1bcae83 | 3387 | TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ |
3c3bdf30 NC |
3388 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
3389 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3390 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
3391 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
3392 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3393 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
3394 | ||
3395 | { | |
3396 | _bfd_dummy_target, | |
3397 | mmo_object_p, /* bfd_check_format */ | |
3398 | _bfd_dummy_target, | |
3399 | _bfd_dummy_target, | |
3400 | }, | |
3401 | { | |
d00dd7dc | 3402 | _bfd_bool_bfd_false_error, |
3c3bdf30 | 3403 | mmo_mkobject, |
d00dd7dc AM |
3404 | _bfd_bool_bfd_false_error, |
3405 | _bfd_bool_bfd_false_error, | |
3c3bdf30 NC |
3406 | }, |
3407 | { /* bfd_write_contents */ | |
d00dd7dc | 3408 | _bfd_bool_bfd_false_error, |
3c3bdf30 | 3409 | mmo_write_object_contents, |
d00dd7dc AM |
3410 | _bfd_bool_bfd_false_error, |
3411 | _bfd_bool_bfd_false_error, | |
3c3bdf30 NC |
3412 | }, |
3413 | ||
3414 | BFD_JUMP_TABLE_GENERIC (mmo), | |
3415 | BFD_JUMP_TABLE_COPY (mmo), | |
3416 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
3417 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
3418 | BFD_JUMP_TABLE_SYMBOLS (mmo), | |
72f6ea61 | 3419 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), |
3c3bdf30 NC |
3420 | BFD_JUMP_TABLE_WRITE (mmo), |
3421 | BFD_JUMP_TABLE_LINK (mmo), | |
3422 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
3423 | ||
3424 | NULL, | |
3425 | ||
3426 | NULL | |
3427 | }; |