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3c3bdf30 | 1 | /* BFD back-end for mmo objects (MMIX-specific object-format). |
fd67aa11 | 2 | Copyright (C) 2001-2024 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 | { | |
7a1bc25b AM |
466 | size_t len = strlen (secname) + 1; |
467 | char *newsecname = bfd_alloc (abfd, len); | |
3c3bdf30 NC |
468 | |
469 | if (newsecname == NULL) | |
470 | { | |
7a1bc25b | 471 | bfd_set_error (bfd_error_no_memory); |
3c3bdf30 NC |
472 | return NULL; |
473 | } | |
7a1bc25b | 474 | memcpy (newsecname, secname, len); |
3c3bdf30 NC |
475 | sec = bfd_make_section (abfd, newsecname); |
476 | } | |
477 | ||
478 | return sec; | |
479 | } | |
480 | ||
481 | /* Nothing to do, but keep as a placeholder if we need it. | |
482 | Note that state that might differ between bfd:s must not be initialized | |
483 | here, nor must it be static. Add it to tdata information instead. */ | |
484 | ||
485 | static void | |
278b4623 | 486 | mmo_init (void) |
3c3bdf30 | 487 | { |
0a1b45a2 | 488 | static bool inited = false; |
3c3bdf30 | 489 | |
82e51918 | 490 | if (inited) |
930b4cb2 | 491 | return; |
0a1b45a2 | 492 | inited = true; |
3c3bdf30 NC |
493 | } |
494 | ||
495 | /* Check whether an existing file is an mmo file. */ | |
496 | ||
cb001c0d | 497 | static bfd_cleanup |
278b4623 | 498 | mmo_object_p (bfd *abfd) |
3c3bdf30 NC |
499 | { |
500 | struct stat statbuf; | |
501 | bfd_byte b[4]; | |
502 | ||
503 | mmo_init (); | |
504 | ||
505 | if (bfd_stat (abfd, &statbuf) < 0 | |
226f9f4f AM |
506 | || bfd_seek (abfd, 0, SEEK_SET) != 0 |
507 | || bfd_read (b, 4, abfd) != 4) | |
3c3bdf30 NC |
508 | goto bad_final; |
509 | ||
510 | /* All mmo files are a multiple of four bytes long. | |
511 | Only recognize version one. */ | |
512 | if ((statbuf.st_size % 4) != 0 | |
513 | || b[0] != LOP || b[1] != LOP_PRE || b[2] != 1) | |
514 | goto bad_format; | |
515 | ||
516 | /* Get the last 32-bit word. */ | |
226f9f4f AM |
517 | if (bfd_seek (abfd, statbuf.st_size - 4, SEEK_SET) != 0 |
518 | || bfd_read (b, 4, abfd) != 4) | |
3c3bdf30 NC |
519 | goto bad_final; |
520 | ||
521 | /* Check if the file ends in a lop_end lopcode. */ | |
522 | if (b[0] != LOP || b[1] != LOP_END || ! mmo_mkobject (abfd)) | |
523 | goto bad_format; | |
524 | ||
525 | /* Compute an upper bound on the max symbol length. Not really | |
526 | important as all of the symbol information can only be 256k. */ | |
527 | abfd->tdata.mmo_data->max_symbol_length = (b[2] * 256 + b[3]) * 4; | |
528 | abfd->tdata.mmo_data->lop_stab_symbol | |
80aa6647 | 529 | = bfd_alloc (abfd, abfd->tdata.mmo_data->max_symbol_length + 1); |
3c3bdf30 NC |
530 | |
531 | if (abfd->tdata.mmo_data->lop_stab_symbol == NULL) | |
532 | { | |
4eca0228 | 533 | _bfd_error_handler |
695344c0 | 534 | /* xgettext:c-format */ |
38f14ab8 | 535 | (_("%pB: no core to allocate a symbol %d bytes long"), |
dae82561 | 536 | abfd, abfd->tdata.mmo_data->max_symbol_length); |
3c3bdf30 NC |
537 | goto bad_final; |
538 | } | |
539 | ||
540 | /* Read in everything. */ | |
541 | if (! mmo_scan (abfd)) | |
80aa6647 | 542 | goto bad_format; |
3c3bdf30 NC |
543 | |
544 | if (abfd->symcount > 0) | |
545 | abfd->flags |= HAS_SYMS; | |
546 | ||
547 | /* You'll have to tweak this if you want to use this format for other | |
548 | arches (not recommended due to its small-size limitations). Look at | |
549 | the ELF format for how to make it target-generic. */ | |
550 | if (! bfd_default_set_arch_mach (abfd, bfd_arch_mmix, 0)) | |
80aa6647 | 551 | goto bad_format; |
3c3bdf30 | 552 | |
cb001c0d | 553 | return _bfd_no_cleanup; |
3c3bdf30 | 554 | |
3c3bdf30 NC |
555 | bad_format: |
556 | bfd_set_error (bfd_error_wrong_format); | |
557 | bad_final: | |
558 | return NULL; | |
559 | } | |
560 | ||
561 | /* Set up the mmo tdata information. */ | |
562 | ||
0a1b45a2 | 563 | static bool |
278b4623 | 564 | mmo_mkobject (bfd *abfd) |
3c3bdf30 NC |
565 | { |
566 | mmo_init (); | |
567 | ||
568 | if (abfd->tdata.mmo_data == NULL) | |
569 | { | |
570 | time_t created; | |
571 | ||
572 | /* All fields are zero-initialized, so we don't have to explicitly | |
573 | initialize most. */ | |
f24bdec4 | 574 | tdata_type *tdata = (tdata_type *) bfd_zalloc (abfd, sizeof (tdata_type)); |
3c3bdf30 | 575 | if (tdata == NULL) |
0a1b45a2 | 576 | return false; |
3c3bdf30 NC |
577 | |
578 | created = time (NULL); | |
579 | bfd_put_32 (abfd, created, tdata->created); | |
580 | ||
581 | abfd->tdata.mmo_data = tdata; | |
582 | } | |
583 | ||
0a1b45a2 | 584 | return true; |
3c3bdf30 NC |
585 | } |
586 | ||
0a1b45a2 | 587 | static bool |
c287bfe4 HPN |
588 | mmo_section_has_contents (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p ATTRIBUTE_UNUSED) |
589 | { | |
590 | /* The point is to match what --extract-symbols does (well, negated). */ | |
fd361982 | 591 | return bfd_section_size (sec) != 0; |
c287bfe4 HPN |
592 | } |
593 | ||
594 | /* Find out whether we should omit symbol consistency checks for this | |
595 | bfd and cache the value. | |
596 | ||
597 | This function must only be called when all section contents is | |
598 | known. However, calculating symbol consistency at the time the | |
599 | private BFD data is initialized is too late for some uses. */ | |
600 | ||
0a1b45a2 | 601 | static bool |
c287bfe4 HPN |
602 | mmo_ignore_symbol_consistency (bfd *abfd) |
603 | { | |
604 | if (!abfd->tdata.mmo_data->symbol_consistency_override_calculated) | |
605 | { | |
606 | abfd->tdata.mmo_data->ignore_symbol_consistency = | |
607 | bfd_sections_find_if (abfd, mmo_section_has_contents, NULL) == NULL; | |
608 | ||
0a1b45a2 | 609 | abfd->tdata.mmo_data->symbol_consistency_override_calculated = true; |
c287bfe4 HPN |
610 | } |
611 | ||
612 | return abfd->tdata.mmo_data->ignore_symbol_consistency; | |
613 | } | |
614 | ||
0a1b45a2 | 615 | static bool |
278b4623 | 616 | mmo_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd) |
3c3bdf30 NC |
617 | { |
618 | if (bfd_get_flavour (ibfd) != bfd_target_mmo_flavour | |
619 | || bfd_get_flavour (obfd) != bfd_target_mmo_flavour) | |
0a1b45a2 | 620 | return true; |
3c3bdf30 NC |
621 | |
622 | /* Copy the time the copied-from file was created. If people want the | |
623 | time the file was last *modified*, they have that in the normal file | |
624 | information. */ | |
625 | memcpy (obfd->tdata.mmo_data->created, ibfd->tdata.mmo_data->created, | |
626 | sizeof (obfd->tdata.mmo_data->created)); | |
0a1b45a2 | 627 | return true; |
3c3bdf30 NC |
628 | } |
629 | ||
630 | /* Helper functions for mmo_decide_section, used through | |
631 | bfd_map_over_sections. */ | |
632 | ||
633 | static void | |
278b4623 | 634 | mmo_find_sec_w_addr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p) |
3c3bdf30 NC |
635 | { |
636 | struct mmo_find_sec_info *infop = (struct mmo_find_sec_info *) p; | |
fd361982 | 637 | bfd_vma vma = bfd_section_vma (sec); |
3c3bdf30 NC |
638 | |
639 | /* Ignore sections that aren't loaded. */ | |
fd361982 | 640 | if ((bfd_section_flags (sec) & (SEC_LOAD | SEC_ALLOC)) |
3c3bdf30 NC |
641 | != (SEC_LOAD | SEC_ALLOC)) |
642 | return; | |
643 | ||
eea6121a | 644 | if (infop->addr >= vma && infop->addr < vma + sec->size) |
3c3bdf30 NC |
645 | infop->sec = sec; |
646 | } | |
647 | ||
648 | static void | |
278b4623 | 649 | mmo_find_sec_w_addr_grow (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, void *p) |
3c3bdf30 NC |
650 | { |
651 | struct mmo_find_sec_info *infop = (struct mmo_find_sec_info *) p; | |
fd361982 | 652 | bfd_vma vma = bfd_section_vma (sec); |
3c3bdf30 NC |
653 | |
654 | /* Ignore sections that aren't loaded. */ | |
fd361982 | 655 | if ((bfd_section_flags (sec) & (SEC_LOAD | SEC_ALLOC)) |
3c3bdf30 NC |
656 | != (SEC_LOAD | SEC_ALLOC)) |
657 | return; | |
658 | ||
659 | if (infop->addr >= vma && infop->addr < vma + MAX_ARTIFICIAL_SECTION_SIZE) | |
660 | infop->sec = sec; | |
661 | } | |
662 | ||
663 | /* Find a section that corresponds to a VMA. Automatically create .text | |
664 | or .data and set current section to it, depending on what vma. If we | |
665 | can't deduce a section, make one up as ".MMIX.sec.N", where N is an | |
666 | increasing number. */ | |
667 | ||
668 | static asection * | |
278b4623 | 669 | mmo_decide_section (bfd *abfd, bfd_vma vma) |
3c3bdf30 NC |
670 | { |
671 | asection *sec = NULL; | |
672 | char sec_name[sizeof (".MMIX.sec.") + 20]; | |
673 | struct mmo_find_sec_info info; | |
674 | ||
675 | info.addr = vma; | |
676 | info.sec = NULL; | |
677 | ||
678 | /* First see if there's a section that would match exactly. */ | |
679 | bfd_map_over_sections (abfd, mmo_find_sec_w_addr, &info); | |
680 | ||
681 | if (info.sec != NULL) | |
682 | return info.sec; | |
683 | ||
684 | /* If there's no such section, try and expand one of the existing ones, | |
685 | up to a limit. Make sure we have .text and .data before we try that; | |
686 | create them corresponding to expected addresses and set flags to make | |
687 | them match the "loaded and with contents" expectation. */ | |
688 | if ((vma >> 56) == 0) | |
689 | { | |
690 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
691 | ||
692 | if (sec == NULL) | |
693 | return NULL; | |
694 | ||
fd361982 | 695 | if (!sec->user_set_vma && !bfd_set_section_vma (sec, vma)) |
a253d456 NC |
696 | return NULL; |
697 | ||
fd361982 AM |
698 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
699 | | SEC_CODE | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
700 | return NULL; |
701 | } | |
702 | else if ((vma >> 56) == 0x20) | |
703 | { | |
704 | sec = bfd_make_section_old_way (abfd, MMO_DATA_SECTION_NAME); | |
705 | ||
706 | if (sec == NULL) | |
707 | return NULL; | |
708 | ||
fd361982 | 709 | if (!sec->user_set_vma && !bfd_set_section_vma (sec, vma)) |
a253d456 NC |
710 | return NULL; |
711 | ||
fd361982 AM |
712 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
713 | | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
714 | return NULL; |
715 | } | |
716 | ||
717 | bfd_map_over_sections (abfd, mmo_find_sec_w_addr_grow, &info); | |
718 | ||
719 | if (info.sec != NULL) | |
720 | return info.sec; | |
721 | ||
722 | /* If there's still no suitable section, make a new one. */ | |
723 | sprintf (sec_name, ".MMIX.sec.%d", abfd->tdata.mmo_data->sec_no++); | |
724 | sec = mmo_make_section (abfd, sec_name); | |
a253d456 | 725 | |
7a1bc25b | 726 | if (!sec || (!sec->user_set_vma && !bfd_set_section_vma (sec, vma))) |
a253d456 | 727 | return NULL; |
3c3bdf30 | 728 | |
fd361982 AM |
729 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
730 | | SEC_LOAD | SEC_ALLOC))) | |
3c3bdf30 NC |
731 | return NULL; |
732 | return sec; | |
733 | } | |
734 | ||
735 | /* Xor in a 64-bit value VALUE at VMA. */ | |
736 | ||
0a0ff9d9 | 737 | static inline bfd_byte * |
278b4623 | 738 | mmo_xore_64 (asection *sec, bfd_vma vma, bfd_vma value) |
3c3bdf30 NC |
739 | { |
740 | bfd_byte *loc = mmo_get_loc (sec, vma, 8); | |
0a0ff9d9 AM |
741 | if (loc) |
742 | { | |
743 | bfd_vma prev = bfd_get_64 (sec->owner, loc); | |
3c3bdf30 | 744 | |
0a0ff9d9 AM |
745 | value ^= prev; |
746 | bfd_put_64 (sec->owner, value, loc); | |
747 | } | |
748 | return loc; | |
3c3bdf30 NC |
749 | } |
750 | ||
751 | /* Xor in a 32-bit value VALUE at VMA. */ | |
752 | ||
0a0ff9d9 | 753 | static inline bfd_byte * |
278b4623 | 754 | mmo_xore_32 (asection *sec, bfd_vma vma, unsigned int value) |
3c3bdf30 NC |
755 | { |
756 | bfd_byte *loc = mmo_get_loc (sec, vma, 4); | |
0a0ff9d9 AM |
757 | if (loc) |
758 | { | |
759 | unsigned int prev = bfd_get_32 (sec->owner, loc); | |
3c3bdf30 | 760 | |
0a0ff9d9 AM |
761 | value ^= prev; |
762 | bfd_put_32 (sec->owner, value, loc); | |
763 | } | |
764 | return loc; | |
3c3bdf30 NC |
765 | } |
766 | ||
767 | /* Xor in a 16-bit value VALUE at VMA. */ | |
768 | ||
0a0ff9d9 | 769 | static inline bfd_byte * |
278b4623 | 770 | mmo_xore_16 (asection *sec, bfd_vma vma, unsigned int value) |
3c3bdf30 NC |
771 | { |
772 | bfd_byte *loc = mmo_get_loc (sec, vma, 2); | |
0a0ff9d9 AM |
773 | if (loc) |
774 | { | |
775 | unsigned int prev = bfd_get_16 (sec->owner, loc); | |
3c3bdf30 | 776 | |
0a0ff9d9 AM |
777 | value ^= prev; |
778 | bfd_put_16 (sec->owner, value, loc); | |
779 | } | |
780 | return loc; | |
3c3bdf30 NC |
781 | } |
782 | ||
783 | /* Write a 32-bit word to output file, no lop_quote generated. */ | |
784 | ||
42eec46f | 785 | static inline void |
278b4623 | 786 | mmo_write_tetra_raw (bfd *abfd, unsigned int value) |
3c3bdf30 NC |
787 | { |
788 | bfd_byte buf[4]; | |
789 | ||
790 | bfd_put_32 (abfd, value, buf); | |
791 | ||
226f9f4f | 792 | if (bfd_write (buf, 4, abfd) != 4) |
0a1b45a2 | 793 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
794 | } |
795 | ||
796 | /* Write a 32-bit word to output file; lop_quote if necessary. */ | |
797 | ||
42eec46f | 798 | static inline void |
278b4623 | 799 | mmo_write_tetra (bfd *abfd, unsigned int value) |
3c3bdf30 NC |
800 | { |
801 | if (((value >> 24) & 0xff) == LOP) | |
802 | mmo_write_tetra_raw (abfd, LOP_QUOTE_NEXT); | |
803 | ||
804 | mmo_write_tetra_raw (abfd, value); | |
805 | } | |
806 | ||
807 | /* Write a 64-bit word to output file, perhaps with lop_quoting. */ | |
808 | ||
42eec46f | 809 | static inline void |
278b4623 | 810 | mmo_write_octa (bfd *abfd, bfd_vma value) |
3c3bdf30 NC |
811 | { |
812 | mmo_write_tetra (abfd, (unsigned int) (value >> 32)); | |
813 | mmo_write_tetra (abfd, (unsigned int) value); | |
814 | } | |
815 | ||
816 | /* Write a 64-bit word to output file, without lop_quoting. */ | |
817 | ||
42eec46f | 818 | static inline void |
278b4623 | 819 | mmo_write_octa_raw (bfd *abfd, bfd_vma value) |
3c3bdf30 NC |
820 | { |
821 | mmo_write_tetra_raw (abfd, (unsigned int) (value >> 32)); | |
822 | mmo_write_tetra_raw (abfd, (unsigned int) value); | |
823 | } | |
824 | ||
dfa36a69 HPN |
825 | /* Write quoted contents. Intended to be called multiple times in |
826 | sequence, followed by a call to mmo_flush_chunk. */ | |
3c3bdf30 | 827 | |
42eec46f | 828 | static inline bool |
278b4623 | 829 | mmo_write_chunk (bfd *abfd, const bfd_byte *loc, unsigned int len) |
3c3bdf30 | 830 | { |
0a1b45a2 | 831 | bool retval = true; |
ed905580 | 832 | struct mmo_data_struct *mmop = abfd->tdata.mmo_data; |
dfa36a69 HPN |
833 | |
834 | /* Fill up a tetra from bytes remaining from a previous chunk. */ | |
ed905580 | 835 | if (mmop->byte_no != 0) |
dfa36a69 | 836 | { |
ed905580 | 837 | while (mmop->byte_no < 4 && len != 0) |
dfa36a69 | 838 | { |
ed905580 | 839 | mmop->buf[mmop->byte_no++] = *loc++; |
dfa36a69 HPN |
840 | len--; |
841 | } | |
842 | ||
ed905580 | 843 | if (mmop->byte_no == 4) |
dfa36a69 | 844 | { |
ed905580 HPN |
845 | mmo_write_tetra (abfd, bfd_get_32 (abfd, mmop->buf)); |
846 | mmop->byte_no = 0; | |
dfa36a69 HPN |
847 | } |
848 | } | |
3c3bdf30 NC |
849 | |
850 | while (len >= 4) | |
851 | { | |
852 | if (loc[0] == LOP) | |
853 | mmo_write_tetra_raw (abfd, LOP_QUOTE_NEXT); | |
854 | ||
82e51918 | 855 | retval = (retval |
ed905580 | 856 | && ! mmop->have_error |
226f9f4f | 857 | && 4 == bfd_write (loc, 4, abfd)); |
3c3bdf30 NC |
858 | |
859 | loc += 4; | |
860 | len -= 4; | |
861 | } | |
862 | ||
863 | if (len) | |
864 | { | |
1218d67d HPN |
865 | /* We must have flushed a previous remainder if we get one from |
866 | this chunk too. */ | |
867 | BFD_ASSERT (mmop->byte_no == 0); | |
ed905580 HPN |
868 | memcpy (mmop->buf, loc, len); |
869 | mmop->byte_no = len; | |
3c3bdf30 NC |
870 | } |
871 | ||
82e51918 | 872 | if (! retval) |
0a1b45a2 | 873 | mmop->have_error = true; |
3c3bdf30 NC |
874 | return retval; |
875 | } | |
876 | ||
dfa36a69 HPN |
877 | /* Flush remaining bytes, from a previous mmo_write_chunk, zero-padded to |
878 | 4 bytes. */ | |
879 | ||
42eec46f | 880 | static inline bool |
278b4623 | 881 | mmo_flush_chunk (bfd *abfd) |
dfa36a69 HPN |
882 | { |
883 | if (abfd->tdata.mmo_data->byte_no != 0) | |
884 | { | |
885 | memset (abfd->tdata.mmo_data->buf + abfd->tdata.mmo_data->byte_no, | |
886 | 0, 4 - abfd->tdata.mmo_data->byte_no); | |
887 | mmo_write_tetra (abfd, | |
888 | bfd_get_32 (abfd, abfd->tdata.mmo_data->buf)); | |
889 | abfd->tdata.mmo_data->byte_no = 0; | |
890 | } | |
891 | ||
82e51918 | 892 | return ! abfd->tdata.mmo_data->have_error; |
dfa36a69 HPN |
893 | } |
894 | ||
3c3bdf30 NC |
895 | /* Same, but from a list. */ |
896 | ||
42eec46f | 897 | static inline bool |
278b4623 | 898 | mmo_write_chunk_list (bfd *abfd, mmo_data_list_type *datap) |
3c3bdf30 NC |
899 | { |
900 | for (; datap != NULL; datap = datap->next) | |
901 | if (! mmo_write_chunk (abfd, datap->data, datap->size)) | |
0a1b45a2 | 902 | return false; |
3c3bdf30 | 903 | |
dfa36a69 | 904 | return mmo_flush_chunk (abfd); |
3c3bdf30 NC |
905 | } |
906 | ||
dfa36a69 HPN |
907 | /* Write a lop_loc and some contents. A caller needs to call |
908 | mmo_flush_chunk after calling this function. The location is only | |
909 | output if different than *LAST_VMAP, which is updated after this call. */ | |
3c3bdf30 | 910 | |
0a1b45a2 | 911 | static bool |
278b4623 HPN |
912 | mmo_write_loc_chunk (bfd *abfd, bfd_vma vma, const bfd_byte *loc, |
913 | unsigned int len, bfd_vma *last_vmap) | |
3c3bdf30 | 914 | { |
1218d67d HPN |
915 | /* Find an initial and trailing section of zero (aligned) tetras; we don't |
916 | need to write out zeros. FIXME: When we do this, we should emit | |
917 | section size and address specifiers, else objcopy can't always perform | |
918 | an identity translation. Only do this if we *don't* have left-over | |
919 | data from a previous write (and will not add any) or else the vma of | |
920 | this chunk is *not* the next address, because then data isn't | |
921 | tetrabyte-aligned and we're concatenating to that left-over data. */ | |
922 | ||
923 | if ((vma & 3) == 0 | |
924 | && (abfd->tdata.mmo_data->byte_no == 0 || vma != *last_vmap)) | |
3c3bdf30 | 925 | { |
1218d67d | 926 | while (len > 4 && bfd_get_32 (abfd, loc) == 0) |
8d28f606 HPN |
927 | { |
928 | vma += 4; | |
929 | len -= 4; | |
930 | loc += 4; | |
931 | } | |
3c3bdf30 | 932 | |
1218d67d HPN |
933 | if ((len & 3) == 0) |
934 | while (len > 4 && bfd_get_32 (abfd, loc + len - 4) == 0) | |
935 | len -= 4; | |
8d28f606 | 936 | } |
3c3bdf30 | 937 | |
dfa36a69 HPN |
938 | /* Only write out the location if it's different than the one the caller |
939 | (supposedly) previously handled, accounting for omitted leading zeros. */ | |
940 | if (vma != *last_vmap) | |
941 | { | |
942 | /* We might be in the middle of a sequence. */ | |
943 | mmo_flush_chunk (abfd); | |
944 | ||
1218d67d HPN |
945 | /* This should not happen during normal usage, but can presumably |
946 | happen with an erroneous linker-script, so handle gracefully. | |
947 | Avoid Knuth-specific terms in the message, such as "tetrabyte". | |
948 | Note that this function will get non-4-multiple lengths and | |
949 | unaligned vmas but those come in tuples (mostly pairs) and are | |
950 | continuous (i.e. the if-condition above false) and they are | |
951 | group-wise aligned. */ | |
952 | if ((vma & 3) != 0) | |
953 | { | |
4eca0228 | 954 | _bfd_error_handler |
695344c0 | 955 | /* xgettext:c-format */ |
871b3ab2 | 956 | (_("%pB: attempt to emit contents at non-multiple-of-4" |
2dcf00ce AM |
957 | " address %#" PRIx64 ""), |
958 | abfd, (uint64_t) vma); | |
1218d67d | 959 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 960 | return false; |
1218d67d HPN |
961 | } |
962 | ||
dfa36a69 | 963 | /* We always write the location as 64 bits; no use saving bytes |
07d6d2b8 | 964 | here. */ |
dfa36a69 HPN |
965 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_LOC << 16) | 2); |
966 | mmo_write_octa_raw (abfd, vma); | |
967 | } | |
968 | ||
969 | /* Update to reflect end of this chunk, with trailing zeros omitted. */ | |
970 | *last_vmap = vma + len; | |
971 | ||
82e51918 AM |
972 | return (! abfd->tdata.mmo_data->have_error |
973 | && mmo_write_chunk (abfd, loc, len)); | |
3c3bdf30 NC |
974 | } |
975 | ||
976 | /* Same, but from a list. */ | |
977 | ||
42eec46f | 978 | static inline bool |
278b4623 | 979 | mmo_write_loc_chunk_list (bfd *abfd, mmo_data_list_type *datap) |
3c3bdf30 | 980 | { |
dfa36a69 HPN |
981 | /* Get an address different than the address of the first chunk. */ |
982 | bfd_vma last_vma = datap ? datap->where - 1 : 0; | |
983 | ||
3c3bdf30 | 984 | for (; datap != NULL; datap = datap->next) |
dfa36a69 HPN |
985 | if (! mmo_write_loc_chunk (abfd, datap->where, datap->data, datap->size, |
986 | &last_vma)) | |
0a1b45a2 | 987 | return false; |
3c3bdf30 | 988 | |
dfa36a69 | 989 | return mmo_flush_chunk (abfd); |
3c3bdf30 NC |
990 | } |
991 | ||
992 | /* Make a .MMIX.spec_data.N section. */ | |
993 | ||
994 | static asection * | |
278b4623 | 995 | mmo_get_generic_spec_data_section (bfd *abfd, int spec_data_number) |
3c3bdf30 NC |
996 | { |
997 | asection *sec; | |
998 | char secname[sizeof (MMIX_OTHER_SPEC_SECTION_PREFIX) + 20] | |
999 | = MMIX_OTHER_SPEC_SECTION_PREFIX; | |
1000 | ||
1001 | sprintf (secname + strlen (MMIX_OTHER_SPEC_SECTION_PREFIX), | |
1002 | "%d", spec_data_number); | |
1003 | ||
1004 | sec = mmo_make_section (abfd, secname); | |
1005 | ||
1006 | return sec; | |
1007 | } | |
1008 | ||
1009 | /* Make a special section for SPEC_DATA_NUMBER. If it is the one we use | |
1010 | ourselves, parse some of its data to get at the section name. */ | |
1011 | ||
1012 | static asection * | |
278b4623 | 1013 | mmo_get_spec_section (bfd *abfd, int spec_data_number) |
3c3bdf30 | 1014 | { |
f075ee0c | 1015 | char *secname; |
3c3bdf30 NC |
1016 | asection *sec; |
1017 | bfd_byte buf[4]; | |
1018 | unsigned int secname_length; | |
1019 | unsigned int i; | |
1020 | bfd_vma section_length; | |
1021 | bfd_vma section_vma; | |
1022 | mmo_data_list_type *loc; | |
1023 | flagword flags; | |
1024 | long orig_pos; | |
1025 | ||
1026 | /* If this isn't the "special" special data, then make a placeholder | |
1027 | section. */ | |
1028 | if (spec_data_number != SPEC_DATA_SECTION) | |
1029 | return mmo_get_generic_spec_data_section (abfd, spec_data_number); | |
1030 | ||
1031 | /* Seek back to this position if there was a format error. */ | |
1032 | orig_pos = bfd_tell (abfd); | |
1033 | ||
1034 | /* Read the length (in 32-bit words). */ | |
226f9f4f | 1035 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1036 | goto format_error; |
1037 | ||
1038 | if (buf[0] == LOP) | |
1039 | { | |
1040 | if (buf[1] != LOP_QUOTE) | |
1041 | goto format_error; | |
1042 | ||
226f9f4f | 1043 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1044 | goto format_error; |
1045 | } | |
1046 | ||
1047 | /* We don't care to keep the name length accurate. It's | |
1048 | zero-terminated. */ | |
1049 | secname_length = bfd_get_32 (abfd, buf) * 4; | |
1050 | ||
1051 | /* Check section name length for sanity. */ | |
1052 | if (secname_length > MAX_SECTION_NAME_SIZE) | |
1053 | goto format_error; | |
1054 | ||
1055 | /* This should be free'd regardless if a section is created. */ | |
1056 | secname = bfd_malloc (secname_length + 1); | |
1057 | secname[secname_length] = 0; | |
1058 | ||
1059 | for (i = 0; i < secname_length / 4; i++) | |
1060 | { | |
226f9f4f | 1061 | if (bfd_read (secname + i * 4, 4, abfd) != 4) |
3c3bdf30 NC |
1062 | goto format_error_free; |
1063 | ||
f075ee0c | 1064 | if (secname[i * 4] == (char) LOP) |
3c3bdf30 NC |
1065 | { |
1066 | /* A bit of overkill, but we handle char 0x98 in a section name, | |
1067 | and recognize misparsing. */ | |
1068 | if (secname[i * 4 + 1] != LOP_QUOTE | |
226f9f4f | 1069 | || bfd_read (secname + i * 4, 4, abfd) != 4) |
3c3bdf30 NC |
1070 | /* Whoops. We thought this was a name, and now we found a |
1071 | non-lop_quote lopcode before we parsed the whole length of | |
1072 | the name. Signal end-of-file in the same manner. */ | |
1073 | goto format_error_free; | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | /* Get the section flags. */ | |
226f9f4f | 1078 | if (bfd_read (buf, 4, abfd) != 4 |
3c3bdf30 | 1079 | || (buf[0] == LOP |
226f9f4f | 1080 | && (buf[1] != LOP_QUOTE || bfd_read (buf, 4, abfd) != 4))) |
3c3bdf30 NC |
1081 | goto format_error_free; |
1082 | ||
1083 | flags = bfd_get_32 (abfd, buf); | |
1084 | ||
1085 | /* Get the section length. */ | |
226f9f4f | 1086 | if (bfd_read (buf, 4, abfd) != 4 |
3c3bdf30 | 1087 | || (buf[0] == LOP |
226f9f4f | 1088 | && (buf[1] != LOP_QUOTE || bfd_read (buf, 4, abfd) != 4))) |
3c3bdf30 NC |
1089 | goto format_error_free; |
1090 | ||
1091 | section_length = (bfd_vma) bfd_get_32 (abfd, buf) << 32; | |
1092 | ||
1093 | /* That's the first, high-part. Now get the low part. */ | |
1094 | ||
226f9f4f | 1095 | if (bfd_read (buf, 4, abfd) != 4 |
3c3bdf30 | 1096 | || (buf[0] == LOP |
226f9f4f | 1097 | && (buf[1] != LOP_QUOTE || bfd_read (buf, 4, abfd) != 4))) |
3c3bdf30 NC |
1098 | goto format_error_free; |
1099 | ||
1100 | section_length |= (bfd_vma) bfd_get_32 (abfd, buf); | |
1101 | ||
1102 | /* Check the section length for sanity. */ | |
1103 | if (section_length > MAX_ARTIFICIAL_SECTION_SIZE) | |
1104 | goto format_error_free; | |
1105 | ||
1106 | /* Get the section VMA. */ | |
226f9f4f | 1107 | if (bfd_read (buf, 4, abfd) != 4 |
3c3bdf30 | 1108 | || (buf[0] == LOP |
226f9f4f | 1109 | && (buf[1] != LOP_QUOTE || bfd_read (buf, 4, abfd) != 4))) |
3c3bdf30 NC |
1110 | goto format_error_free; |
1111 | ||
1112 | section_vma = (bfd_vma) bfd_get_32 (abfd, buf) << 32; | |
1113 | ||
1114 | /* That's the first, high-part. Now get the low part. */ | |
226f9f4f | 1115 | if (bfd_read (buf, 4, abfd) != 4 |
3c3bdf30 | 1116 | || (buf[0] == LOP |
226f9f4f | 1117 | && (buf[1] != LOP_QUOTE || bfd_read (buf, 4, abfd) != 4))) |
3c3bdf30 NC |
1118 | goto format_error_free; |
1119 | ||
1120 | section_vma |= (bfd_vma) bfd_get_32 (abfd, buf); | |
1121 | ||
1122 | sec = mmo_make_section (abfd, secname); | |
1123 | free (secname); | |
1124 | if (sec == NULL) | |
1125 | goto format_error; | |
1126 | ||
1127 | /* We allocate a buffer here for the advertised size, with head room for | |
1128 | tetrabyte alignment. */ | |
80aa6647 AM |
1129 | loc = bfd_zalloc (abfd, (section_length + 3 |
1130 | + sizeof (struct mmo_data_list_struct))); | |
3c3bdf30 NC |
1131 | if (loc == NULL) |
1132 | goto format_error; | |
1133 | ||
1134 | /* Use a TETRA-rounded size for the allocated buffer; we set the | |
1135 | "visible" section size below. */ | |
1136 | loc->size = (section_length + 3) & ~3; | |
1137 | ||
1138 | /* Add in the section flags we found to those bfd entered during this | |
1139 | process and set the contents. */ | |
fd361982 AM |
1140 | if (!bfd_set_section_flags (sec, |
1141 | (bfd_sec_flags_from_mmo_flags (flags) | |
1142 | | bfd_section_flags (sec) | |
1143 | | (section_length != 0 ? SEC_HAS_CONTENTS : 0))) | |
1144 | || !bfd_set_section_size (sec, sec->size + section_length) | |
3c3bdf30 | 1145 | /* Set VMA only for the first occurrence. */ |
fd361982 | 1146 | || (!sec->user_set_vma && !bfd_set_section_vma (sec, section_vma))) |
3c3bdf30 NC |
1147 | { |
1148 | /* If we get an error for any of the calls above, signal more than | |
1149 | just a format error for the spec section. */ | |
1150 | return NULL; | |
1151 | } | |
1152 | ||
1153 | loc->next = NULL; | |
68bfbfcc AM |
1154 | if (mmo_section_data (sec)->tail != NULL) |
1155 | mmo_section_data (sec)->tail->next = loc; | |
3c3bdf30 | 1156 | else |
68bfbfcc AM |
1157 | mmo_section_data (sec)->head = loc; |
1158 | mmo_section_data (sec)->tail = loc; | |
3c3bdf30 NC |
1159 | loc->where = section_vma; |
1160 | ||
1161 | return sec; | |
1162 | ||
1163 | format_error_free: | |
1164 | free (secname); | |
1165 | format_error: | |
1166 | if (bfd_seek (abfd, orig_pos, SEEK_SET) != 0) | |
1167 | return NULL; | |
1168 | ||
1169 | return mmo_get_generic_spec_data_section (abfd, spec_data_number); | |
1170 | } | |
1171 | ||
1172 | /* Read a byte, but read from file in multiples of 32-bit words. */ | |
1173 | ||
1174 | static bfd_byte | |
278b4623 | 1175 | mmo_get_byte (bfd *abfd) |
3c3bdf30 NC |
1176 | { |
1177 | bfd_byte retval; | |
1178 | ||
1179 | if (abfd->tdata.mmo_data->byte_no == 0) | |
1180 | { | |
31e43bff | 1181 | if (!abfd->tdata.mmo_data->have_error |
226f9f4f | 1182 | && bfd_read (abfd->tdata.mmo_data->buf, 4, abfd) != 4) |
31e43bff | 1183 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 | 1184 | |
31e43bff AM |
1185 | /* A value somewhat safe against tripping on some inconsistency |
1186 | when mopping up after this error. */ | |
1187 | if (abfd->tdata.mmo_data->have_error) | |
1188 | return 128; | |
3c3bdf30 NC |
1189 | } |
1190 | ||
1191 | retval = abfd->tdata.mmo_data->buf[abfd->tdata.mmo_data->byte_no]; | |
1192 | abfd->tdata.mmo_data->byte_no = (abfd->tdata.mmo_data->byte_no + 1) % 4; | |
1193 | ||
1194 | return retval; | |
1195 | } | |
1196 | ||
1197 | /* Write a byte, in multiples of 32-bit words. */ | |
1198 | ||
1199 | static void | |
278b4623 | 1200 | mmo_write_byte (bfd *abfd, bfd_byte value) |
3c3bdf30 NC |
1201 | { |
1202 | abfd->tdata.mmo_data->buf[(abfd->tdata.mmo_data->byte_no++ % 4)] = value; | |
1203 | if ((abfd->tdata.mmo_data->byte_no % 4) == 0) | |
1204 | { | |
82e51918 | 1205 | if (! abfd->tdata.mmo_data->have_error |
226f9f4f | 1206 | && bfd_write (abfd->tdata.mmo_data->buf, 4, abfd) != 4) |
0a1b45a2 | 1207 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
1208 | } |
1209 | } | |
1210 | ||
1211 | /* Create a symbol. */ | |
1212 | ||
0a1b45a2 | 1213 | static bool |
278b4623 HPN |
1214 | mmo_create_symbol (bfd *abfd, const char *symname, bfd_vma addr, enum |
1215 | mmo_sym_type sym_type, unsigned int serno) | |
3c3bdf30 NC |
1216 | { |
1217 | struct mmo_symbol *n; | |
1218 | ||
1219 | n = (struct mmo_symbol *) bfd_alloc (abfd, sizeof (struct mmo_symbol)); | |
1220 | if (n == NULL) | |
0a1b45a2 | 1221 | return false; |
3c3bdf30 NC |
1222 | |
1223 | n->name = bfd_alloc (abfd, strlen (symname) + 1); | |
1224 | if (n->name == NULL) | |
0a1b45a2 | 1225 | return false; |
3c3bdf30 | 1226 | |
278b4623 | 1227 | strcpy (n->name, symname); |
3c3bdf30 NC |
1228 | |
1229 | n->value = addr; | |
1230 | n->sym_type = sym_type; | |
1231 | n->serno = serno; | |
1232 | ||
1233 | if (abfd->tdata.mmo_data->symbols == NULL) | |
1234 | abfd->tdata.mmo_data->symbols = n; | |
1235 | else | |
1236 | abfd->tdata.mmo_data->symtail->next = n; | |
1237 | abfd->tdata.mmo_data->symtail = n; | |
1238 | n->next = NULL; | |
1239 | ||
1240 | ++abfd->symcount; | |
1241 | ||
1242 | /* Check that :Main equals the last octa of the .MMIX.reg_contents | |
1243 | section, as it's the one place we're sure to pass when reading a mmo | |
1244 | object. For written objects, we do it while setting the symbol | |
1245 | table. */ | |
1246 | if (strcmp (symname, MMIX_START_SYMBOL_NAME) == 0 | |
c287bfe4 HPN |
1247 | && bfd_get_start_address (abfd) != addr |
1248 | && !mmo_ignore_symbol_consistency (abfd)) | |
3c3bdf30 | 1249 | { |
4eca0228 | 1250 | _bfd_error_handler |
871b3ab2 | 1251 | (_("%pB: invalid mmo file: initialization value for $255" |
dae82561 AM |
1252 | " is not `Main'\n"), |
1253 | abfd); | |
3c3bdf30 | 1254 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 1255 | return false; |
3c3bdf30 NC |
1256 | } |
1257 | ||
0a1b45a2 | 1258 | return true; |
3c3bdf30 NC |
1259 | } |
1260 | ||
1261 | /* Read in symbols. */ | |
1262 | ||
0a1b45a2 | 1263 | static bool |
278b4623 | 1264 | mmo_get_symbols (bfd *abfd) |
3c3bdf30 NC |
1265 | { |
1266 | /* | |
1267 | INODE | |
1268 | Symbol-table, mmo section mapping, File layout, mmo | |
1269 | SUBSECTION | |
1270 | Symbol table format | |
1271 | ||
52f4ea79 HPN |
1272 | From mmixal.w (or really, the generated mmixal.tex) in the |
1273 | MMIXware package which also contains the @command{mmix} simulator: | |
3c3bdf30 NC |
1274 | ``Symbols are stored and retrieved by means of a @samp{ternary |
1275 | search trie}, following ideas of Bentley and Sedgewick. (See | |
1276 | ACM--SIAM Symp.@: on Discrete Algorithms @samp{8} (1997), 360--369; | |
1277 | R.@:Sedgewick, @samp{Algorithms in C} (Reading, Mass.@: | |
1278 | Addison--Wesley, 1998), @samp{15.4}.) Each trie node stores a | |
1279 | character, and there are branches to subtries for the cases where | |
1280 | a given character is less than, equal to, or greater than the | |
1281 | character in the trie. There also is a pointer to a symbol table | |
1282 | entry if a symbol ends at the current node.'' | |
1283 | ||
1284 | So it's a tree encoded as a stream of bytes. The stream of bytes | |
1285 | acts on a single virtual global symbol, adding and removing | |
1286 | characters and signalling complete symbol points. Here, we read | |
1287 | the stream and create symbols at the completion points. | |
1288 | ||
1289 | First, there's a control byte <<m>>. If any of the listed bits | |
1290 | in <<m>> is nonzero, we execute what stands at the right, in | |
1291 | the listed order: | |
1292 | ||
1293 | | (MMO3_LEFT) | |
1294 | | 0x40 - Traverse left trie. | |
1295 | | (Read a new command byte and recurse.) | |
1296 | | | |
1297 | | (MMO3_SYMBITS) | |
1298 | | 0x2f - Read the next byte as a character and store it in the | |
1299 | | current character position; increment character position. | |
1300 | | Test the bits of <<m>>: | |
1301 | | | |
1302 | | (MMO3_WCHAR) | |
1303 | | 0x80 - The character is 16-bit (so read another byte, | |
1304 | | merge into current character. | |
1305 | | | |
1306 | | (MMO3_TYPEBITS) | |
1307 | | 0xf - We have a complete symbol; parse the type, value | |
1308 | | and serial number and do what should be done | |
1309 | | with a symbol. The type and length information | |
1310 | | is in j = (m & 0xf). | |
1311 | | | |
1312 | | (MMO3_REGQUAL_BITS) | |
1313 | | j == 0xf: A register variable. The following | |
1314 | | byte tells which register. | |
1315 | | j <= 8: An absolute symbol. Read j bytes as the | |
1316 | | big-endian number the symbol equals. | |
1317 | | A j = 2 with two zero bytes denotes an | |
1318 | | unknown symbol. | |
1319 | | j > 8: As with j <= 8, but add (0x20 << 56) | |
1320 | | to the value in the following j - 8 | |
1321 | | bytes. | |
1322 | | | |
1323 | | Then comes the serial number, as a variant of | |
1324 | | uleb128, but better named ubeb128: | |
1325 | | Read bytes and shift the previous value left 7 | |
1326 | | (multiply by 128). Add in the new byte, repeat | |
1327 | | until a byte has bit 7 set. The serial number | |
1328 | | is the computed value minus 128. | |
1329 | | | |
1330 | | (MMO3_MIDDLE) | |
1331 | | 0x20 - Traverse middle trie. (Read a new command byte | |
1332 | | and recurse.) Decrement character position. | |
1333 | | | |
1334 | | (MMO3_RIGHT) | |
1335 | | 0x10 - Traverse right trie. (Read a new command byte and | |
1336 | | recurse.) | |
1337 | ||
1338 | Let's look again at the <<lop_stab>> for the trivial file | |
1339 | (@pxref{File layout}). | |
1340 | ||
1341 | | 0x980b0000 - lop_stab for ":Main" = 0, serial 1. | |
1342 | | 0x203a4040 | |
1343 | | 0x10404020 | |
1344 | | 0x4d206120 | |
1345 | | 0x69016e00 | |
1346 | | 0x81000000 | |
1347 | ||
1348 | This forms the trivial trie (note that the path between ``:'' and | |
1349 | ``M'' is redundant): | |
1350 | ||
1351 | | 203a ":" | |
1352 | | 40 / | |
1353 | | 40 / | |
1354 | | 10 \ | |
1355 | | 40 / | |
1356 | | 40 / | |
1357 | | 204d "M" | |
1358 | | 2061 "a" | |
1359 | | 2069 "i" | |
1360 | | 016e "n" is the last character in a full symbol, and | |
1361 | | with a value represented in one byte. | |
1362 | | 00 The value is 0. | |
1363 | | 81 The serial number is 1. */ | |
1364 | ||
1365 | bfd_byte m = mmo_get_byte (abfd); | |
1366 | ||
1367 | /* Check first if we have a bad hair day. */ | |
82e51918 | 1368 | if (abfd->tdata.mmo_data->have_error) |
0a1b45a2 | 1369 | return false; |
3c3bdf30 NC |
1370 | |
1371 | if (m & MMO3_LEFT) | |
1372 | /* Traverse left trie. */ | |
1373 | mmo_get_symbols (abfd); | |
1374 | ||
1375 | if (m & MMO3_SYMBITS) | |
1376 | { | |
1377 | bfd_byte c = mmo_get_byte (abfd); | |
1378 | bfd_byte j = m & MMO3_TYPEBITS; | |
1379 | bfd_vma addr = 0; | |
1380 | enum mmo_sym_type sym_type; | |
1381 | unsigned int serno = 0; | |
1382 | bfd_byte k; | |
1383 | ||
1384 | if (m & MMO3_WCHAR) | |
1385 | { | |
1386 | bfd_byte c2 = mmo_get_byte (abfd); | |
1387 | ||
1388 | /* A two-byte character. We can't grok this, but neither can | |
1389 | mmotype, for other cases than the second byte being zero. */ | |
1390 | ||
1391 | if (c != 0) | |
1392 | { | |
1393 | abfd->tdata.mmo_data->lop_stab_symbol | |
1394 | [abfd->tdata.mmo_data->symbol_position] = 0; | |
1395 | ||
4eca0228 | 1396 | _bfd_error_handler |
695344c0 | 1397 | /* xgettext:c-format */ |
871b3ab2 | 1398 | (_("%pB: unsupported wide character sequence" |
278b4623 | 1399 | " 0x%02X 0x%02X after symbol name starting with `%s'\n"), |
dae82561 | 1400 | abfd, c, c2, abfd->tdata.mmo_data->lop_stab_symbol); |
3c3bdf30 | 1401 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 AM |
1402 | abfd->tdata.mmo_data->have_error = true; |
1403 | return false; | |
3c3bdf30 NC |
1404 | } |
1405 | else | |
1406 | c = c2; | |
1407 | } | |
1408 | ||
00d44f7f AM |
1409 | if (abfd->tdata.mmo_data->symbol_position |
1410 | >= abfd->tdata.mmo_data->max_symbol_length) | |
1411 | { | |
1412 | _bfd_error_handler | |
1413 | /* xgettext:c-format */ | |
1414 | (_("%pB: symbol name exceeds given max length of %d"), | |
1415 | abfd, abfd->tdata.mmo_data->max_symbol_length); | |
1416 | abfd->tdata.mmo_data->have_error = true; | |
1417 | return false; | |
1418 | } | |
3c3bdf30 NC |
1419 | abfd->tdata.mmo_data->lop_stab_symbol[abfd->tdata.mmo_data->symbol_position++] = c; |
1420 | abfd->tdata.mmo_data->lop_stab_symbol[abfd->tdata.mmo_data->symbol_position] = 0; | |
1421 | ||
1422 | if (j & MMO3_REGQUAL_BITS) | |
1423 | { | |
1424 | if (j == MMO3_REGQUAL_BITS) | |
1425 | { | |
1426 | sym_type = mmo_reg_sym; | |
1427 | addr = mmo_get_byte (abfd); | |
1428 | } | |
1429 | else if (j <= 8) | |
1430 | { | |
1431 | unsigned int i; | |
1432 | ||
1433 | for (i = 0; i < j; i++) | |
1434 | addr = (addr << 8) + mmo_get_byte (abfd); | |
1435 | ||
1436 | if (addr == 0 && j == MMO3_UNDEF) | |
1437 | sym_type = mmo_undef_sym; | |
1438 | else | |
1439 | sym_type = mmo_abs_sym; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | unsigned int i; | |
1444 | ||
1445 | for (i = MMO3_DATA; i < j; i++) | |
1446 | addr = (addr << 8) + mmo_get_byte (abfd); | |
1447 | ||
1448 | addr += (bfd_vma) 0x20 << 56; | |
1449 | sym_type = mmo_data_sym; | |
1450 | } | |
1451 | ||
1452 | /* Get the serial number. */ | |
1453 | do | |
1454 | { | |
1455 | k = mmo_get_byte (abfd); | |
1456 | serno = (serno << 7) + k; | |
1457 | } | |
1458 | while (k < 128); | |
1459 | serno -= 128; | |
1460 | ||
1461 | /* Got it. Now enter it. Skip a leading ":". */ | |
82e51918 | 1462 | if (! abfd->tdata.mmo_data->have_error |
3c3bdf30 NC |
1463 | && ! mmo_create_symbol (abfd, |
1464 | abfd->tdata.mmo_data->lop_stab_symbol | |
1465 | + 1, | |
1466 | addr, sym_type, serno)) | |
0a1b45a2 | 1467 | abfd->tdata.mmo_data->have_error = true; |
3c3bdf30 NC |
1468 | } |
1469 | ||
1470 | if (m & MMO3_MIDDLE) | |
1471 | /* Traverse middle trie. */ | |
1472 | mmo_get_symbols (abfd); | |
1473 | ||
1474 | abfd->tdata.mmo_data->symbol_position--; | |
1475 | } | |
1476 | ||
1477 | if (m & MMO3_RIGHT) | |
1478 | /* Traverse right trie. */ | |
1479 | mmo_get_symbols (abfd); | |
1480 | ||
82e51918 | 1481 | return ! abfd->tdata.mmo_data->have_error; |
3c3bdf30 NC |
1482 | } |
1483 | ||
1484 | /* Get the location of memory area [VMA..VMA + SIZE - 1], which we think | |
1485 | is in section SEC. Adjust and reallocate zero-initialized contents. | |
1486 | If there's new contents, allocate to the next multiple of | |
1487 | MMO_SEC_CONTENTS_CHUNK_SIZE. */ | |
1488 | ||
0a0ff9d9 | 1489 | static bfd_byte * |
2bda15d7 | 1490 | mmo_get_loc (asection *sec, bfd_vma vma, unsigned int size) |
3c3bdf30 NC |
1491 | { |
1492 | bfd_size_type allocated_size; | |
68bfbfcc | 1493 | struct mmo_section_data_struct *sdatap = mmo_section_data (sec); |
3c3bdf30 NC |
1494 | struct mmo_data_list_struct *datap = sdatap->head; |
1495 | struct mmo_data_list_struct *entry; | |
1496 | ||
dfa36a69 HPN |
1497 | /* First search the list to see if we have the requested chunk in one |
1498 | piece, or perhaps if we have a suitable chunk with room to fit. */ | |
3c3bdf30 NC |
1499 | for (; datap != NULL; datap = datap->next) |
1500 | { | |
1501 | if (datap->where <= vma | |
2bda15d7 AM |
1502 | && datap->size >= size |
1503 | && datap->size - size >= vma - datap->where) | |
1504 | return datap->data + (vma - datap->where); | |
3c3bdf30 | 1505 | else if (datap->where <= vma |
2bda15d7 AM |
1506 | && datap->allocated_size >= size |
1507 | && datap->allocated_size - size >= vma - datap->where | |
3c3bdf30 NC |
1508 | /* Only munch on the "allocated size" if it does not |
1509 | overlap the next chunk. */ | |
1510 | && (datap->next == NULL || datap->next->where >= vma + size)) | |
1511 | { | |
1512 | /* There was room allocated, but the size wasn't set to include | |
1513 | it. Do that now. */ | |
2bda15d7 | 1514 | datap->size = vma - datap->where + size; |
3c3bdf30 | 1515 | |
dfa36a69 HPN |
1516 | /* Update the section size. This happens only if we update the |
1517 | 32-bit-aligned chunk size. Callers that have | |
1518 | non-32-bit-aligned sections should do all allocation and | |
1519 | size-setting by themselves or at least set the section size | |
1520 | after the last allocating call to this function. */ | |
2bda15d7 AM |
1521 | if (vma - sec->vma + size > sec->size) |
1522 | sec->size = vma - sec->vma + size; | |
3c3bdf30 | 1523 | |
2bda15d7 | 1524 | return datap->data + (vma - datap->where); |
3c3bdf30 NC |
1525 | } |
1526 | } | |
1527 | ||
1528 | /* Not found; allocate a new block. First check in case we get a | |
1529 | request for a size split up over several blocks; we'll have to return | |
1530 | NULL for those cases, requesting the caller to split up the request. | |
1531 | Requests with an address aligned on MMO_SEC_CONTENTS_CHUNK_SIZE bytes and | |
1532 | for no more than MMO_SEC_CONTENTS_CHUNK_SIZE will always get resolved. */ | |
1533 | ||
1534 | for (datap = sdatap->head; datap != NULL; datap = datap->next) | |
2bda15d7 | 1535 | if ((datap->where <= vma && datap->size > vma - datap->where) |
3c3bdf30 NC |
1536 | || (datap->where < vma + size |
1537 | && datap->where + datap->size >= vma + size)) | |
1538 | return NULL; | |
1539 | ||
1540 | allocated_size | |
1541 | = (size + MMO_SEC_CONTENTS_CHUNK_SIZE - 1) & ~(MMO_SEC_CONTENTS_CHUNK_SIZE - 1); | |
1542 | entry = (mmo_data_list_type *) | |
1543 | bfd_zalloc (sec->owner, sizeof (mmo_data_list_type) + allocated_size); | |
1544 | if (entry == NULL) | |
c295a511 | 1545 | return NULL; |
3c3bdf30 NC |
1546 | entry->where = vma; |
1547 | entry->size = size; | |
1548 | entry->allocated_size = allocated_size; | |
1549 | ||
1550 | datap = sdatap->head; | |
1551 | ||
1552 | /* Sort the records by address. Optimize for the common case of adding | |
1553 | a record to the end of the list. */ | |
1554 | if (sdatap->tail != NULL && entry->where >= sdatap->tail->where) | |
1555 | { | |
1556 | sdatap->tail->next = entry; | |
1557 | entry->next = NULL; | |
1558 | sdatap->tail = entry; | |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | mmo_data_list_type **look; | |
1563 | for (look = &sdatap->head; | |
1564 | *look != NULL && (*look)->where < entry->where; | |
1565 | look = &(*look)->next) | |
1566 | ; | |
1567 | entry->next = *look; | |
1568 | *look = entry; | |
1569 | if (entry->next == NULL) | |
1570 | { | |
1571 | sdatap->tail = entry; | |
1572 | ||
1573 | /* We get here for the first time (at other times too) for this | |
1574 | section. Say we have contents. */ | |
fd361982 AM |
1575 | if (!bfd_set_section_flags (sec, (bfd_section_flags (sec) |
1576 | | SEC_HAS_CONTENTS))) | |
3c3bdf30 NC |
1577 | return NULL; |
1578 | } | |
1579 | } | |
1580 | ||
dfa36a69 HPN |
1581 | /* Update the section size. This happens only when we add contents and |
1582 | re-size as we go. The section size will then be aligned to 32 bits. */ | |
2bda15d7 AM |
1583 | if (vma - sec->vma + size > sec->size) |
1584 | sec->size = vma - sec->vma + size; | |
3c3bdf30 NC |
1585 | return entry->data; |
1586 | } | |
1587 | ||
1588 | /* Set sizes once we've read in all sections. */ | |
1589 | ||
1590 | static void | |
278b4623 HPN |
1591 | mmo_map_set_sizes (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, |
1592 | void *ignored ATTRIBUTE_UNUSED) | |
3c3bdf30 | 1593 | { |
3c3bdf30 NC |
1594 | sec->lma = sec->vma; |
1595 | } | |
1596 | ||
1597 | /* Read the mmo file and turn it into sections. */ | |
1598 | ||
0a1b45a2 | 1599 | static bool |
278b4623 | 1600 | mmo_scan (bfd *abfd) |
3c3bdf30 NC |
1601 | { |
1602 | unsigned int i; | |
d0975d80 | 1603 | unsigned int lineno ATTRIBUTE_UNUSED = 1; |
0a1b45a2 | 1604 | bool error = false; |
3c3bdf30 | 1605 | bfd_vma vma = 0; |
7b948a25 | 1606 | asection *sec = NULL; |
3c3bdf30 NC |
1607 | asection *non_spec_sec = NULL; |
1608 | bfd_vma non_spec_vma = 0; | |
3c3bdf30 NC |
1609 | bfd_size_type nbytes_read = 0; |
1610 | /* Buffer with room to read a 64-bit value. */ | |
1611 | bfd_byte buf[8]; | |
d42c267e | 1612 | file_ptr stab_loc = -1; |
3c3bdf30 NC |
1613 | char *file_names[256]; |
1614 | ||
c9ba0c87 | 1615 | abfd->symcount = 0; |
3c3bdf30 NC |
1616 | memset (file_names, 0, sizeof (file_names)); |
1617 | ||
226f9f4f | 1618 | if (bfd_seek (abfd, 0, SEEK_SET) != 0) |
3c3bdf30 NC |
1619 | goto error_return; |
1620 | ||
226f9f4f | 1621 | while ((nbytes_read = bfd_read (buf, 4, abfd)) == 4) |
3c3bdf30 NC |
1622 | { |
1623 | if (buf[0] == LOP) | |
1624 | { | |
1625 | unsigned int y = bfd_get_8 (abfd, buf + 2); | |
1626 | unsigned int z = bfd_get_8 (abfd, buf + 3); | |
1627 | ||
1628 | /* Change back to the original section for lopcodes other | |
1629 | than LOP_QUOTE that comes after a LOP_SPEC. */ | |
1630 | if ((buf[1] != LOP_QUOTE || y != 0 || z != 1) | |
1631 | && non_spec_sec != NULL) | |
1632 | { | |
1633 | sec = non_spec_sec; | |
1634 | vma = non_spec_vma; | |
1635 | non_spec_sec = NULL; | |
1636 | } | |
1637 | ||
1638 | switch (buf[1]) | |
1639 | { | |
1640 | default: | |
4eca0228 | 1641 | _bfd_error_handler |
695344c0 | 1642 | /* xgettext:c-format */ |
871b3ab2 | 1643 | (_("%pB: invalid mmo file: unsupported lopcode `%d'\n"), |
dae82561 | 1644 | abfd, buf[1]); |
3c3bdf30 NC |
1645 | bfd_set_error (bfd_error_bad_value); |
1646 | goto error_return; | |
1647 | ||
1648 | case LOP_QUOTE: | |
1649 | /* Quote the next 32-bit word. */ | |
1650 | if (y != 0 || z != 1) | |
1651 | { | |
4eca0228 | 1652 | _bfd_error_handler |
695344c0 | 1653 | /* xgettext:c-format */ |
871b3ab2 | 1654 | (_("%pB: invalid mmo file: expected YZ = 1" |
dae82561 AM |
1655 | " got YZ = %d for lop_quote\n"), |
1656 | abfd, y*256+z); | |
3c3bdf30 NC |
1657 | bfd_set_error (bfd_error_bad_value); |
1658 | goto error_return; | |
1659 | } | |
226f9f4f | 1660 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1661 | goto error_return; |
1662 | ||
1218d67d | 1663 | vma &= ~3; |
7b948a25 HPN |
1664 | if (sec == NULL) |
1665 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
0a0ff9d9 AM |
1666 | if (!mmo_xore_32 (sec, vma, bfd_get_32 (abfd, buf))) |
1667 | { | |
1668 | bfd_set_error (bfd_error_bad_value); | |
1669 | goto error_return; | |
1670 | } | |
3c3bdf30 | 1671 | vma += 4; |
3c3bdf30 NC |
1672 | lineno++; |
1673 | break; | |
1674 | ||
1675 | case LOP_LOC: | |
1676 | /* Set vma (and section). */ | |
1677 | vma = (bfd_vma) y << 56; | |
1678 | if (z == 1) | |
1679 | { | |
1680 | /* Get a 32-bit value. */ | |
226f9f4f | 1681 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1682 | goto error_return; |
1683 | ||
1684 | vma += bfd_get_32 (abfd, buf); | |
1685 | } | |
1686 | else if (z == 2) | |
1687 | { | |
1688 | /* Get a 64-bit value. */ | |
226f9f4f | 1689 | if (bfd_read (buf, 8, abfd) != 8) |
3c3bdf30 NC |
1690 | goto error_return; |
1691 | ||
1692 | vma += bfd_get_64 (abfd, buf); | |
1693 | } | |
1694 | else | |
1695 | { | |
4eca0228 | 1696 | _bfd_error_handler |
695344c0 | 1697 | /* xgettext:c-format */ |
871b3ab2 | 1698 | (_("%pB: invalid mmo file: expected z = 1 or z = 2," |
dae82561 AM |
1699 | " got z = %d for lop_loc\n"), |
1700 | abfd, z); | |
3c3bdf30 NC |
1701 | bfd_set_error (bfd_error_bad_value); |
1702 | goto error_return; | |
1703 | } | |
1704 | ||
1218d67d HPN |
1705 | /* When we decide which section the data goes into, we might |
1706 | create the section. If that happens, make sure the VMA at | |
1707 | creation time is tetra-aligned. */ | |
1708 | sec = mmo_decide_section (abfd, vma & ~3); | |
3c3bdf30 NC |
1709 | if (sec == NULL) |
1710 | goto error_return; | |
1711 | break; | |
1712 | ||
1713 | case LOP_SKIP: | |
1714 | /* Move forward within the same section. */ | |
1715 | vma += y * 256 + z; | |
1716 | ||
1717 | sec = mmo_decide_section (abfd, vma); | |
1718 | if (sec == NULL) | |
1719 | goto error_return; | |
1720 | break; | |
1721 | ||
1722 | case LOP_FIXO: | |
1723 | /* A fixup: Store the current vma somewhere. Position using | |
1724 | same format as LOP_LOC. */ | |
1725 | { | |
1726 | bfd_vma p = (bfd_vma) y << 56; | |
1727 | asection *fixosec; | |
1728 | ||
1729 | if (z == 1) | |
1730 | { | |
1731 | /* Get a 32-bit value. */ | |
226f9f4f | 1732 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1733 | goto error_return; |
1734 | ||
1735 | p += bfd_get_32 (abfd, buf); | |
1736 | } | |
1737 | else if (z == 2) | |
1738 | { | |
1739 | /* Get a 64-bit value. */ | |
226f9f4f | 1740 | if (bfd_read (buf, 8, abfd) != 8) |
3c3bdf30 NC |
1741 | goto error_return; |
1742 | ||
1743 | p += bfd_get_64 (abfd, buf); | |
1744 | } | |
1745 | else | |
1746 | { | |
4eca0228 | 1747 | _bfd_error_handler |
695344c0 | 1748 | /* xgettext:c-format */ |
871b3ab2 | 1749 | (_("%pB: invalid mmo file: expected z = 1 or z = 2," |
dae82561 AM |
1750 | " got z = %d for lop_fixo\n"), |
1751 | abfd, z); | |
3c3bdf30 NC |
1752 | bfd_set_error (bfd_error_bad_value); |
1753 | goto error_return; | |
1754 | } | |
1755 | ||
1756 | /* The section where we store this address might be a | |
1757 | different one than the current section. */ | |
1758 | fixosec = mmo_decide_section (abfd, p); | |
1759 | if (fixosec == NULL) | |
1760 | goto error_return; | |
0a0ff9d9 AM |
1761 | if (!mmo_xore_64 (fixosec, p, vma)) |
1762 | { | |
1763 | bfd_set_error (bfd_error_bad_value); | |
1764 | goto error_return; | |
1765 | } | |
3c3bdf30 NC |
1766 | } |
1767 | break; | |
1768 | ||
1769 | case LOP_FIXR: | |
1770 | /* A fixup: Store YZ of this lopcode into YZ at vma - 4 * yz. */ | |
1771 | { | |
1772 | unsigned int yz = (y * 256 + z); | |
1773 | bfd_vma p = vma + 2 - 4 * yz; | |
1774 | asection *fixrsec = mmo_decide_section (abfd, p); | |
1775 | if (fixrsec == NULL) | |
1776 | goto error_return; | |
0a0ff9d9 AM |
1777 | if (!mmo_xore_16 (fixrsec, p, yz)) |
1778 | { | |
1779 | bfd_set_error (bfd_error_bad_value); | |
1780 | goto error_return; | |
1781 | } | |
3c3bdf30 NC |
1782 | } |
1783 | break; | |
1784 | ||
1785 | case LOP_FIXRX: | |
1786 | /* A fixup, similar to lop_fixr, but taking larger numbers | |
1787 | and can change branches into the opposite direction | |
1788 | (gasp!). */ | |
1789 | { | |
1790 | bfd_vma delta; | |
1791 | bfd_vma p; | |
1792 | asection *fixrsec; | |
1793 | ||
1794 | if (y != 0) | |
1795 | { | |
4eca0228 | 1796 | _bfd_error_handler |
695344c0 | 1797 | /* xgettext:c-format */ |
871b3ab2 | 1798 | (_("%pB: invalid mmo file: expected y = 0," |
dae82561 AM |
1799 | " got y = %d for lop_fixrx\n"), |
1800 | abfd, y); | |
3c3bdf30 NC |
1801 | bfd_set_error (bfd_error_bad_value); |
1802 | goto error_return; | |
1803 | } | |
1804 | ||
1805 | if (z != 16 && z != 24) | |
1806 | { | |
4eca0228 | 1807 | _bfd_error_handler |
695344c0 | 1808 | /* xgettext:c-format */ |
871b3ab2 | 1809 | (_("%pB: invalid mmo file: expected z = 16 or z = 24," |
dae82561 AM |
1810 | " got z = %d for lop_fixrx\n"), |
1811 | abfd, z); | |
3c3bdf30 NC |
1812 | bfd_set_error (bfd_error_bad_value); |
1813 | goto error_return; | |
1814 | } | |
1815 | ||
1816 | /* Get the next 32-bit value. */ | |
226f9f4f | 1817 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1818 | goto error_return; |
1819 | ||
1820 | delta = bfd_get_32 (abfd, buf); | |
1821 | ||
1822 | /* Do an, ehm, involved calculation for the location of | |
1823 | the fixup. See mmixal documentation for a verbose | |
1824 | explanation. We follow it verbosely here for the | |
1825 | readers delight. */ | |
1826 | if (buf[0] == 0) | |
1827 | p = vma - 4 * delta; | |
1828 | else if (buf[0] == 1) | |
1829 | p = vma - 4 * ((delta & 0xffffff) - (1 << z)); | |
1830 | else | |
1831 | { | |
4eca0228 | 1832 | _bfd_error_handler |
695344c0 | 1833 | /* xgettext:c-format */ |
871b3ab2 | 1834 | (_("%pB: invalid mmo file: leading byte of operand word" |
dae82561 AM |
1835 | " must be 0 or 1, got %d for lop_fixrx\n"), |
1836 | abfd, buf[0]); | |
3c3bdf30 NC |
1837 | bfd_set_error (bfd_error_bad_value); |
1838 | goto error_return; | |
1839 | } | |
1840 | ||
1841 | fixrsec = mmo_decide_section (abfd, vma); | |
1842 | if (fixrsec == NULL) | |
1843 | goto error_return; | |
0a0ff9d9 AM |
1844 | if (!mmo_xore_32 (fixrsec, p, delta)) |
1845 | { | |
1846 | bfd_set_error (bfd_error_bad_value); | |
1847 | goto error_return; | |
1848 | } | |
3c3bdf30 NC |
1849 | } |
1850 | break; | |
1851 | ||
1852 | case LOP_FILE: | |
1853 | /* Set current file and perhaps the file name. Reset line | |
1854 | number. */ | |
1855 | if (z != 0) | |
1856 | { | |
1857 | char *fname = bfd_malloc (z * 4 + 1); | |
1858 | ||
1859 | if (fname == NULL) | |
1860 | { | |
4eca0228 | 1861 | _bfd_error_handler |
695344c0 | 1862 | /* xgettext:c-format */ |
871b3ab2 | 1863 | (_("%pB: cannot allocate file name for file number %d," |
dae82561 AM |
1864 | " %d bytes\n"), |
1865 | abfd, y, z * 4 + 1); | |
3c3bdf30 NC |
1866 | bfd_set_error (bfd_error_system_call); |
1867 | goto error_return; | |
1868 | } | |
1869 | ||
1870 | fname[z * 4] = 0; | |
1871 | ||
1872 | for (i = 0; i < z; i++) | |
1873 | { | |
226f9f4f | 1874 | if (bfd_read (fname + i * 4, 4, abfd) != 4) |
3c3bdf30 NC |
1875 | { |
1876 | free (fname); | |
1877 | goto error_return; | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | if (file_names[y] != NULL) | |
1882 | { | |
4eca0228 | 1883 | _bfd_error_handler |
695344c0 | 1884 | /* xgettext:c-format */ |
871b3ab2 | 1885 | (_("%pB: invalid mmo file: file number %d `%s'," |
278b4623 | 1886 | " was already entered as `%s'\n"), |
dae82561 | 1887 | abfd, y, fname, file_names[y]); |
3c3bdf30 | 1888 | bfd_set_error (bfd_error_bad_value); |
80aa6647 | 1889 | free (fname); |
3c3bdf30 NC |
1890 | goto error_return; |
1891 | } | |
1892 | ||
1893 | file_names[y] = fname; | |
1894 | } | |
1895 | ||
1896 | if (file_names[y] == NULL) | |
1897 | { | |
4eca0228 | 1898 | _bfd_error_handler |
695344c0 | 1899 | /* xgettext:c-format */ |
871b3ab2 | 1900 | (_("%pB: invalid mmo file: file name for number %d" |
278b4623 | 1901 | " was not specified before use\n"), |
dae82561 | 1902 | abfd, y); |
3c3bdf30 NC |
1903 | bfd_set_error (bfd_error_bad_value); |
1904 | goto error_return; | |
1905 | } | |
1906 | ||
3c3bdf30 NC |
1907 | lineno = 0; |
1908 | break; | |
1909 | ||
1910 | case LOP_LINE: | |
1911 | /* Set line number. */ | |
1912 | lineno = y * 256 + z; | |
1913 | /* FIXME: Create a sequence of mmo-specific line number | |
1914 | entries for each section, then translate into canonical | |
1915 | format. */ | |
1916 | break; | |
1917 | ||
1918 | case LOP_SPEC: | |
1919 | /* Special data follows until the next non-lop_quote | |
1920 | lopcode. */ | |
1921 | non_spec_sec = sec; | |
1922 | non_spec_vma = vma; | |
1923 | sec = mmo_get_spec_section (abfd, y * 256 + z); | |
1924 | if (sec == NULL) | |
1925 | goto error_return; | |
1926 | ||
1927 | vma = sec->vma; | |
1928 | break; | |
1929 | ||
1930 | case LOP_PRE: | |
1931 | { | |
1932 | /* We ignore header information, except we read in the | |
1933 | creation time from the first 32-bit word with the time | |
1934 | in seconds since era. */ | |
1935 | if (z >= 1 | |
226f9f4f | 1936 | && bfd_read (abfd->tdata.mmo_data->created, 4, |
3c3bdf30 NC |
1937 | abfd) != 4) |
1938 | goto error_return; | |
1939 | ||
1940 | for (i = 1; i < z; i++) | |
226f9f4f | 1941 | if (bfd_read (buf, 4, abfd) != 4) |
3c3bdf30 NC |
1942 | goto error_return; |
1943 | } | |
1944 | break; | |
1945 | ||
1946 | case LOP_POST: | |
1947 | /* This tells of the contents of registers $Z..$255 at | |
1948 | startup. We make a section out of it, with VMA = Z * 8, | |
1949 | but only if Z != 255 or the contents is non-zero. */ | |
1950 | { | |
1951 | asection *rsec; | |
1952 | bfd_byte *loc; | |
1953 | bfd_vma first_octa; | |
1954 | bfd_vma startaddr_octa; | |
1955 | ||
1956 | /* Read first octaword outside loop to simplify logic when | |
1957 | excluding the Z == 255, octa == 0 case. */ | |
226f9f4f | 1958 | if (bfd_read (buf, 8, abfd) != 8) |
3c3bdf30 NC |
1959 | goto error_return; |
1960 | ||
1961 | first_octa = bfd_get_64 (abfd, buf); | |
1962 | ||
1963 | /* Don't emit contents for the trivial case which is | |
1964 | always present; $255 pointing to Main. */ | |
1965 | if (z != 255) | |
1966 | { | |
1967 | rsec | |
1968 | = bfd_make_section_old_way (abfd, | |
1969 | MMIX_REG_CONTENTS_SECTION_NAME); | |
46fda84e | 1970 | rsec->flags |= SEC_LINKER_CREATED; |
3c3bdf30 NC |
1971 | rsec->vma = z * 8; |
1972 | loc = mmo_get_loc (rsec, z * 8, (255 - z) * 8); | |
0a0ff9d9 AM |
1973 | if (!loc) |
1974 | { | |
1975 | bfd_set_error (bfd_error_bad_value); | |
1976 | goto error_return; | |
1977 | } | |
3c3bdf30 NC |
1978 | bfd_put_64 (abfd, first_octa, loc); |
1979 | ||
1980 | for (i = z + 1; i < 255; i++) | |
1981 | { | |
226f9f4f | 1982 | if (bfd_read (loc + (i - z) * 8, 8, abfd) != 8) |
3c3bdf30 NC |
1983 | goto error_return; |
1984 | } | |
1985 | ||
1986 | /* Read out the last octabyte, and use it to set the | |
1987 | start address. */ | |
226f9f4f | 1988 | if (bfd_read (buf, 8, abfd) != 8) |
3c3bdf30 NC |
1989 | goto error_return; |
1990 | ||
1991 | startaddr_octa = bfd_get_64 (abfd, buf); | |
1992 | } | |
1993 | else | |
1994 | startaddr_octa = first_octa; | |
1995 | ||
1996 | if (! bfd_set_start_address (abfd, startaddr_octa)) | |
1997 | { | |
1998 | /* Currently this can't fail, but this should handle | |
1999 | future failures. */ | |
2000 | bfd_set_error (bfd_error_bad_value); | |
2001 | goto error_return; | |
2002 | } | |
2003 | } | |
2004 | break; | |
2005 | ||
2006 | case LOP_STAB: | |
2007 | /* We read in the symbols now, not later. */ | |
2008 | if (y != 0 || z != 0) | |
2009 | { | |
4eca0228 | 2010 | _bfd_error_handler |
695344c0 | 2011 | /* xgettext:c-format */ |
871b3ab2 | 2012 | (_("%pB: invalid mmo file: fields y and z of lop_stab" |
278b4623 | 2013 | " non-zero, y: %d, z: %d\n"), |
dae82561 | 2014 | abfd, y, z); |
3c3bdf30 NC |
2015 | bfd_set_error (bfd_error_bad_value); |
2016 | goto error_return; | |
2017 | } | |
2018 | ||
2019 | /* Save the location, so we can check that YZ in the LOP_END | |
2020 | is correct. */ | |
2021 | stab_loc = bfd_tell (abfd); | |
2022 | ||
2023 | /* It's not said that an MMO can be without symbols (though | |
2024 | mmixal will refuse to assemble files without Main), but | |
2025 | it seems it would still be a valid mmo-file, so allow it. | |
2026 | We detect the absence of a symbol area in that the upper | |
2027 | limit is computed (from the lop_end YZ field) as 0. | |
2028 | Don't call mmo_get_symbols; it can only detect the end of | |
2029 | a valid symbol trie, not the absence of one. */ | |
2030 | if (abfd->tdata.mmo_data->max_symbol_length != 0 | |
2031 | && ! mmo_get_symbols (abfd)) | |
2032 | goto error_return; | |
2033 | break; | |
2034 | ||
2035 | case LOP_END: | |
2036 | { | |
2037 | /* This must be the last 32-bit word in an mmo file. | |
2038 | Let's find out. */ | |
2039 | struct stat statbuf; | |
74633dd0 | 2040 | file_ptr curpos = bfd_tell (abfd); |
3c3bdf30 NC |
2041 | |
2042 | if (bfd_stat (abfd, &statbuf) < 0) | |
2043 | goto error_return; | |
2044 | ||
2045 | if (statbuf.st_size != curpos) | |
2046 | { | |
4eca0228 | 2047 | _bfd_error_handler |
695344c0 | 2048 | /* xgettext:c-format */ |
871b3ab2 | 2049 | (_("%pB: invalid mmo file: lop_end not last item in" |
278b4623 | 2050 | " file\n"), |
dae82561 | 2051 | abfd); |
3c3bdf30 NC |
2052 | bfd_set_error (bfd_error_bad_value); |
2053 | goto error_return; | |
2054 | } | |
2055 | ||
2056 | /* Check that the YZ field is right. Subtract the size of | |
2057 | this LOP_END in the calculation; YZ does not include | |
2058 | it. */ | |
2059 | if ((long) (y * 256 + z) * 4 != (curpos - stab_loc) - 4) | |
2060 | { | |
4eca0228 | 2061 | _bfd_error_handler |
695344c0 | 2062 | /* xgettext:c-format */ |
871b3ab2 | 2063 | (_("%pB: invalid mmo file: YZ of lop_end (%ld)" |
278b4623 HPN |
2064 | " not equal to the number of tetras to the preceding" |
2065 | " lop_stab (%ld)\n"), | |
dae82561 | 2066 | abfd, (long) (y * 256 + z), |
d42c267e | 2067 | (long) (curpos - stab_loc - 4)/4); |
3c3bdf30 NC |
2068 | bfd_set_error (bfd_error_bad_value); |
2069 | goto error_return; | |
2070 | } | |
2071 | ||
2072 | bfd_map_over_sections (abfd, mmo_map_set_sizes, NULL); | |
2073 | goto done; | |
2074 | } | |
2075 | } | |
2076 | } | |
2077 | else | |
2078 | { | |
2079 | /* This wasn't a lopcode, so store it in the current section. */ | |
7b948a25 HPN |
2080 | if (sec == NULL) |
2081 | sec = bfd_make_section_old_way (abfd, MMO_TEXT_SECTION_NAME); | |
0a0ff9d9 AM |
2082 | if (!mmo_xore_32 (sec, vma & ~3, bfd_get_32 (abfd, buf))) |
2083 | { | |
2084 | bfd_set_error (bfd_error_bad_value); | |
2085 | goto error_return; | |
2086 | } | |
3c3bdf30 NC |
2087 | vma += 4; |
2088 | vma &= ~3; | |
2089 | lineno++; | |
2090 | } | |
2091 | } | |
2092 | ||
2093 | /* We know this file is a multiple of four bytes (checked in | |
2094 | mmo_object_p), so if we got something other than 0, this was a bad | |
2095 | file (although it's more likely we'll get 0 in that case too). | |
2096 | If we got end-of-file, then there was no lop_stab, so the file has | |
2097 | invalid format. */ | |
2098 | ||
2099 | if (nbytes_read != 0) | |
2100 | bfd_set_error (bfd_error_system_call); | |
2101 | else | |
2102 | bfd_set_error (bfd_error_bad_value); | |
2103 | ||
2104 | error_return: | |
0a1b45a2 | 2105 | error = true; |
3c3bdf30 NC |
2106 | done: |
2107 | /* Mark the .text and .data section with their normal attribute if they | |
2108 | contain anything. This is not redundant wrt. mmo_decide_section, | |
2109 | since that code might never execute, and conversely the alloc+code | |
2110 | section flags must be set then. */ | |
2111 | sec = bfd_get_section_by_name (abfd, MMO_TEXT_SECTION_NAME); | |
2112 | if (sec != NULL | |
fd361982 AM |
2113 | && (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
2114 | && !bfd_set_section_flags (sec, (bfd_section_flags (sec) | |
2115 | | SEC_ALLOC | SEC_LOAD | SEC_CODE))) | |
0a1b45a2 | 2116 | error = true; |
3c3bdf30 NC |
2117 | |
2118 | sec = bfd_get_section_by_name (abfd, MMO_DATA_SECTION_NAME); | |
2119 | if (sec != NULL | |
fd361982 AM |
2120 | && (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
2121 | && !bfd_set_section_flags (sec, (bfd_section_flags (sec) | |
5f602802 | 2122 | | SEC_ALLOC | SEC_LOAD | SEC_DATA))) |
0a1b45a2 | 2123 | error = true; |
3c3bdf30 NC |
2124 | |
2125 | /* Free whatever resources we took. */ | |
2126 | for (i = 0; i < sizeof (file_names) / sizeof (file_names[0]); i++) | |
c9594989 | 2127 | free (file_names[i]); |
82e51918 | 2128 | return ! error; |
3c3bdf30 NC |
2129 | } |
2130 | ||
2131 | /* A hook to set up object file dependent section information. For mmo, | |
2132 | we point out the shape of allocated section contents. */ | |
2133 | ||
0a1b45a2 | 2134 | static bool |
f592407e | 2135 | mmo_new_section_hook (bfd *abfd, asection *newsect) |
3c3bdf30 | 2136 | { |
3c3bdf30 | 2137 | if (!newsect->used_by_bfd) |
f592407e AM |
2138 | { |
2139 | /* We zero-fill all fields and assume NULL is represented by an all | |
2140 | zero-bit pattern. */ | |
2141 | newsect->used_by_bfd | |
2142 | = bfd_zalloc (abfd, sizeof (struct mmo_section_data_struct)); | |
2143 | if (!newsect->used_by_bfd) | |
0a1b45a2 | 2144 | return false; |
f592407e | 2145 | } |
3c3bdf30 NC |
2146 | |
2147 | /* Always align to at least 32-bit words. */ | |
2148 | newsect->alignment_power = 2; | |
f592407e | 2149 | return _bfd_generic_new_section_hook (abfd, newsect); |
3c3bdf30 NC |
2150 | } |
2151 | ||
2152 | /* We already have section contents loaded for sections that have | |
2153 | contents. */ | |
2154 | ||
0a1b45a2 | 2155 | static bool |
278b4623 HPN |
2156 | mmo_get_section_contents (bfd *abfd ATTRIBUTE_UNUSED, |
2157 | asection *sec, | |
2158 | void * location, | |
2159 | file_ptr offset, | |
2160 | bfd_size_type bytes_to_do) | |
3c3bdf30 NC |
2161 | { |
2162 | /* Iterate over diminishing chunk sizes, copying contents, like | |
2163 | mmo_set_section_contents. */ | |
2164 | while (bytes_to_do) | |
2165 | { | |
2166 | /* A minor song-and-dance to make sure we're not bitten by the | |
2167 | distant possibility of the cast from bfd_vma to int making the | |
2168 | chunk zero-sized. */ | |
2169 | int chunk_size | |
2170 | = (int) bytes_to_do != 0 ? bytes_to_do : MMO_SEC_CONTENTS_CHUNK_SIZE; | |
2171 | bfd_byte *loc; | |
2172 | ||
2173 | do | |
2174 | loc = mmo_get_loc (sec, sec->vma + offset, chunk_size); | |
2175 | while (loc == NULL && (chunk_size /= 2) != 0); | |
2176 | ||
2177 | if (chunk_size == 0) | |
0a1b45a2 | 2178 | return false; |
3c3bdf30 NC |
2179 | |
2180 | memcpy (location, loc, chunk_size); | |
2181 | ||
28cc9170 | 2182 | location = (bfd_byte *) location + chunk_size; |
3c3bdf30 NC |
2183 | bytes_to_do -= chunk_size; |
2184 | offset += chunk_size; | |
2185 | } | |
0a1b45a2 | 2186 | return true; |
3c3bdf30 NC |
2187 | } |
2188 | ||
2189 | /* Return the amount of memory needed to read the symbol table. */ | |
2190 | ||
2191 | static long | |
278b4623 | 2192 | mmo_get_symtab_upper_bound (bfd *abfd) |
3c3bdf30 NC |
2193 | { |
2194 | return (abfd->symcount + 1) * sizeof (asymbol *); | |
2195 | } | |
2196 | ||
2197 | /* Sort mmo symbols by serial number. */ | |
2198 | ||
2199 | static int | |
278b4623 | 2200 | mmo_sort_mmo_symbols (const void *arg1, const void *arg2) |
3c3bdf30 | 2201 | { |
3f9c735e AM |
2202 | const struct mmo_symbol *sym1 = *(const struct mmo_symbol **) arg1; |
2203 | const struct mmo_symbol *sym2 = *(const struct mmo_symbol **) arg2; | |
3c3bdf30 NC |
2204 | |
2205 | /* Sort by serial number first. */ | |
2206 | if (sym1->serno < sym2->serno) | |
2207 | return -1; | |
2208 | else if (sym1->serno > sym2->serno) | |
2209 | return 1; | |
2210 | ||
2211 | /* Then sort by address of the table entries. */ | |
3f9c735e | 2212 | return ((const char *) arg1 - (const char *) arg2); |
3c3bdf30 NC |
2213 | } |
2214 | ||
2215 | /* Translate the symbol table. */ | |
2216 | ||
2217 | static long | |
278b4623 | 2218 | mmo_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
3c3bdf30 NC |
2219 | { |
2220 | unsigned int symcount = bfd_get_symcount (abfd); | |
2221 | asymbol *csymbols; | |
2222 | unsigned int i; | |
2223 | ||
2224 | csymbols = abfd->tdata.mmo_data->csymbols; | |
b9da616a | 2225 | if (csymbols == NULL && symcount != 0) |
3c3bdf30 NC |
2226 | { |
2227 | asymbol *c; | |
2228 | struct mmo_symbol *s; | |
2229 | struct mmo_symbol **msp; | |
2230 | ||
2231 | /* First we store the symbols into the table we'll return, then we | |
2232 | qsort it on the serial number, with secondary on the address of | |
2233 | the symbol, to preserve order if there would be non-unique serial | |
2234 | numbers. */ | |
2235 | for (s = abfd->tdata.mmo_data->symbols, | |
2236 | msp = (struct mmo_symbol **) alocation; | |
2237 | s != NULL; | |
2238 | s = s->next, ++msp) | |
2239 | *msp = s; | |
2240 | ||
2241 | *msp = NULL; | |
2242 | ||
2243 | qsort (alocation, symcount, sizeof (struct mmo_symbol *), | |
2244 | mmo_sort_mmo_symbols); | |
2245 | ||
2246 | csymbols = (asymbol *) bfd_alloc (abfd, symcount * sizeof (asymbol)); | |
b9da616a AM |
2247 | if (csymbols == NULL) |
2248 | return -1; | |
3c3bdf30 NC |
2249 | abfd->tdata.mmo_data->csymbols = csymbols; |
2250 | ||
2251 | for (msp = (struct mmo_symbol **) alocation, c = csymbols; | |
2252 | *msp != NULL; | |
2253 | msp++, ++c) | |
2254 | { | |
2255 | s = *msp; | |
2256 | c->the_bfd = abfd; | |
2257 | c->name = s->name; | |
2258 | c->value = s->value; | |
2259 | c->flags = BSF_GLOBAL; | |
2260 | ||
2261 | if (s->sym_type == mmo_data_sym) | |
2262 | { | |
2263 | c->section | |
2264 | = bfd_get_section_by_name (abfd, MMO_DATA_SECTION_NAME); | |
2265 | ||
2266 | if (c->section == NULL) | |
2267 | c->section = bfd_abs_section_ptr; | |
2268 | else | |
2269 | c->value -= c->section->vma; | |
2270 | } | |
2271 | else if (s->sym_type == mmo_undef_sym) | |
2272 | c->section = bfd_und_section_ptr; | |
2273 | else if (s->sym_type == mmo_reg_sym) | |
2274 | { | |
2275 | c->section | |
2276 | = bfd_make_section_old_way (abfd, MMIX_REG_SECTION_NAME); | |
46fda84e | 2277 | c->section->flags |= SEC_LINKER_CREATED; |
3c3bdf30 NC |
2278 | } |
2279 | else | |
2280 | { | |
2281 | asection *textsec | |
2282 | = bfd_get_section_by_name (abfd, MMO_TEXT_SECTION_NAME); | |
aa69fe43 | 2283 | asection *datasec; |
3c3bdf30 NC |
2284 | |
2285 | if (textsec != NULL | |
2286 | && c->value >= textsec->vma | |
eea6121a | 2287 | && c->value <= textsec->vma + textsec->size) |
3c3bdf30 NC |
2288 | { |
2289 | c->section = textsec; | |
2290 | c->value -= c->section->vma; | |
2291 | } | |
aa69fe43 HPN |
2292 | /* In mmo, symbol types depend on the VMA. Therefore, if |
2293 | the data section isn't within the usual bounds, its | |
2294 | symbols are marked as absolute. Correct that. This | |
2295 | means we can't have absolute symbols with values matching | |
2296 | data section addresses, but we also can't have with | |
2297 | absolute symbols with values matching text section | |
2298 | addresses. For such needs, use the ELF format. */ | |
2299 | else if ((datasec | |
2300 | = bfd_get_section_by_name (abfd, | |
2301 | MMO_DATA_SECTION_NAME)) | |
2302 | != NULL | |
2303 | && c->value >= datasec->vma | |
2304 | && c->value <= datasec->vma + datasec->size) | |
2305 | { | |
2306 | c->section = datasec; | |
2307 | c->value -= c->section->vma; | |
2308 | } | |
3c3bdf30 NC |
2309 | else |
2310 | c->section = bfd_abs_section_ptr; | |
2311 | } | |
2312 | ||
2313 | c->udata.p = NULL; | |
2314 | } | |
2315 | } | |
2316 | ||
2317 | /* Last, overwrite the incoming table with the right-type entries. */ | |
2318 | for (i = 0; i < symcount; i++) | |
2319 | *alocation++ = csymbols++; | |
2320 | *alocation = NULL; | |
2321 | ||
2322 | return symcount; | |
2323 | } | |
2324 | ||
3c3bdf30 NC |
2325 | /* Get information about a symbol. */ |
2326 | ||
2327 | static void | |
278b4623 HPN |
2328 | mmo_get_symbol_info (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
2329 | asymbol *symbol, symbol_info *ret) | |
3c3bdf30 NC |
2330 | { |
2331 | bfd_symbol_info (symbol, ret); | |
2332 | } | |
2333 | ||
2334 | static void | |
278b4623 HPN |
2335 | mmo_print_symbol (bfd *abfd, void *afile, asymbol *symbol, |
2336 | bfd_print_symbol_type how) | |
3c3bdf30 NC |
2337 | { |
2338 | FILE *file = (FILE *) afile; | |
2339 | ||
2340 | switch (how) | |
2341 | { | |
2342 | case bfd_print_symbol_name: | |
2343 | fprintf (file, "%s", symbol->name); | |
2344 | break; | |
2345 | default: | |
278b4623 | 2346 | bfd_print_symbol_vandf (abfd, file, symbol); |
3c3bdf30 NC |
2347 | |
2348 | fprintf (file, " %-5s %s", | |
2349 | symbol->section->name, | |
2350 | symbol->name); | |
2351 | } | |
2352 | } | |
2353 | ||
2354 | /* We can't map a file directly into executable code, so the | |
2355 | size of header information is irrelevant. */ | |
2356 | ||
2357 | static int | |
278b4623 | 2358 | mmo_sizeof_headers (bfd *abfd ATTRIBUTE_UNUSED, |
a6b96beb | 2359 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
3c3bdf30 NC |
2360 | { |
2361 | return 0; | |
2362 | } | |
2363 | ||
2364 | /* Write the (section-neutral) file preamble. */ | |
2365 | ||
0a1b45a2 | 2366 | static bool |
278b4623 | 2367 | mmo_internal_write_header (bfd *abfd) |
3c3bdf30 | 2368 | { |
3f9c735e | 2369 | const char lop_pre_bfd[] = { LOP, LOP_PRE, 1, 1}; |
3c3bdf30 | 2370 | |
226f9f4f | 2371 | if (bfd_write (lop_pre_bfd, 4, abfd) != 4) |
0a1b45a2 | 2372 | return false; |
3c3bdf30 NC |
2373 | |
2374 | /* Copy creation time of original file. */ | |
226f9f4f | 2375 | if (bfd_write (abfd->tdata.mmo_data->created, 4, abfd) != 4) |
0a1b45a2 | 2376 | return false; |
3c3bdf30 | 2377 | |
0a1b45a2 | 2378 | return true; |
3c3bdf30 NC |
2379 | } |
2380 | ||
2381 | /* Write the LOP_POST record, with global register initializations. | |
2382 | Z is the Z field of the LOP_POST, corresponding to 255 - number of | |
2383 | registers at DATA. The Z = 255 field is filled in with the | |
2384 | start-address. */ | |
2385 | ||
0a1b45a2 | 2386 | static bool |
278b4623 | 2387 | mmo_internal_write_post (bfd *abfd, int z, asection *sec) |
3c3bdf30 NC |
2388 | { |
2389 | int i; | |
2390 | bfd_byte buf[8]; | |
2391 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_POST << 16) | z); | |
2392 | ||
2393 | for (i = z; i < 255; i++) | |
2394 | { | |
2395 | bfd_byte *data = mmo_get_loc (sec, i * 8, 8); | |
2396 | ||
226f9f4f | 2397 | if (bfd_write (data, 8, abfd) != 8) |
0a1b45a2 | 2398 | return false; |
3c3bdf30 NC |
2399 | } |
2400 | ||
2401 | /* For Z == $255, we always emit the start location; supposedly Main, | |
2402 | but we have it handy at bfd_get_start_address. If we're called with | |
2403 | Z == 255, don't assume DATA is valid. */ | |
2404 | bfd_put_64 (abfd, bfd_get_start_address (abfd), buf); | |
2405 | ||
226f9f4f | 2406 | return ! abfd->tdata.mmo_data->have_error && bfd_write (buf, 8, abfd) == 8; |
3c3bdf30 NC |
2407 | } |
2408 | ||
2409 | /* Translate to and from BFD flags. This is to make sure that we don't | |
2410 | get bitten by BFD flag number changes. */ | |
2411 | ||
2412 | static flagword | |
278b4623 | 2413 | mmo_sec_flags_from_bfd_flags (flagword flags) |
3c3bdf30 NC |
2414 | { |
2415 | flagword oflags = 0; | |
2416 | ||
2417 | if (flags & SEC_ALLOC) | |
2418 | oflags |= MMO_SEC_ALLOC; | |
2419 | if (flags & SEC_LOAD) | |
2420 | oflags |= MMO_SEC_LOAD; | |
2421 | if (flags & SEC_RELOC) | |
2422 | oflags |= MMO_SEC_RELOC; | |
2423 | if (flags & SEC_READONLY) | |
2424 | oflags |= MMO_SEC_READONLY; | |
2425 | if (flags & SEC_CODE) | |
2426 | oflags |= MMO_SEC_CODE; | |
2427 | if (flags & SEC_DATA) | |
2428 | oflags |= MMO_SEC_DATA; | |
2429 | if (flags & SEC_NEVER_LOAD) | |
2430 | oflags |= MMO_SEC_NEVER_LOAD; | |
2431 | if (flags & SEC_IS_COMMON) | |
2432 | oflags |= MMO_SEC_IS_COMMON; | |
2433 | if (flags & SEC_DEBUGGING) | |
2434 | oflags |= MMO_SEC_DEBUGGING; | |
2435 | ||
2436 | return oflags; | |
2437 | } | |
2438 | ||
2439 | static flagword | |
278b4623 | 2440 | bfd_sec_flags_from_mmo_flags (flagword flags) |
3c3bdf30 NC |
2441 | { |
2442 | flagword oflags = 0; | |
2443 | ||
2444 | if (flags & MMO_SEC_ALLOC) | |
2445 | oflags |= SEC_ALLOC; | |
2446 | if (flags & MMO_SEC_LOAD) | |
2447 | oflags |= SEC_LOAD; | |
2448 | if (flags & MMO_SEC_RELOC) | |
2449 | oflags |= SEC_RELOC; | |
2450 | if (flags & MMO_SEC_READONLY) | |
2451 | oflags |= SEC_READONLY; | |
2452 | if (flags & MMO_SEC_CODE) | |
2453 | oflags |= SEC_CODE; | |
2454 | if (flags & MMO_SEC_DATA) | |
2455 | oflags |= SEC_DATA; | |
2456 | if (flags & MMO_SEC_NEVER_LOAD) | |
2457 | oflags |= SEC_NEVER_LOAD; | |
2458 | if (flags & MMO_SEC_IS_COMMON) | |
2459 | oflags |= SEC_IS_COMMON; | |
2460 | if (flags & MMO_SEC_DEBUGGING) | |
2461 | oflags |= SEC_DEBUGGING; | |
2462 | ||
2463 | return oflags; | |
2464 | } | |
2465 | ||
aa69fe43 HPN |
2466 | /* Return TRUE iff the leading or trailing tetrabyte in SEC is defined and |
2467 | is 0. */ | |
2468 | ||
0a1b45a2 | 2469 | static bool |
278b4623 | 2470 | mmo_has_leading_or_trailing_zero_tetra_p (bfd *abfd, asection *sec) |
aa69fe43 | 2471 | { |
fd361982 | 2472 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2473 | |
2474 | if (sec->size < 4) | |
0a1b45a2 | 2475 | return false; |
aa69fe43 HPN |
2476 | |
2477 | if (bfd_get_32 (abfd, mmo_get_loc (sec, secaddr, 4)) == 0 | |
2478 | && bfd_get_32 (abfd, | |
2479 | mmo_get_loc (sec, secaddr + sec->size - 4, 4)) == 0) | |
0a1b45a2 | 2480 | return true; |
aa69fe43 | 2481 | |
0a1b45a2 | 2482 | return false; |
aa69fe43 HPN |
2483 | } |
2484 | ||
3c3bdf30 NC |
2485 | /* Write a section. */ |
2486 | ||
0a1b45a2 | 2487 | static bool |
278b4623 | 2488 | mmo_internal_write_section (bfd *abfd, asection *sec) |
3c3bdf30 NC |
2489 | { |
2490 | /* We do it differently depending on what section this is: | |
2491 | ||
2492 | ".text": Output, prepended by information about the first source file | |
2493 | (not yet implemented.) | |
2494 | ||
2495 | ".data": Output. | |
2496 | ||
2497 | (".MMIX.reg_contents": Not handled here.) | |
2498 | ||
2499 | Anything else: Output inside a lop_spec 80, in the format described | |
2500 | above. */ | |
2501 | ||
2502 | if (strcmp (sec->name, MMO_TEXT_SECTION_NAME) == 0) | |
aa69fe43 | 2503 | { |
fd361982 | 2504 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2505 | |
2506 | /* Because leading and trailing zeros are omitted in output, we need to | |
2507 | specify the section boundaries so they're correct when the file | |
2508 | is read in again. That's also the case if this section is | |
2509 | specified as not within its usual boundaries or alignments. */ | |
2510 | if (sec->size != 0 | |
2511 | && (secaddr + sec->size >= (bfd_vma) 1 << 56 | |
2512 | || (secaddr & 3) != 0 | |
2513 | || (sec->size & 3) != 0 | |
2514 | || mmo_has_leading_or_trailing_zero_tetra_p (abfd, sec))) | |
2515 | { | |
2516 | if (!mmo_write_section_description (abfd, sec)) | |
0a1b45a2 | 2517 | return false; |
aa69fe43 HPN |
2518 | } |
2519 | ||
2520 | /* FIXME: Output source file name and line number. */ | |
2521 | return mmo_write_loc_chunk_list (abfd, mmo_section_data (sec)->head); | |
2522 | } | |
3c3bdf30 | 2523 | else if (strcmp (sec->name, MMO_DATA_SECTION_NAME) == 0) |
aa69fe43 | 2524 | { |
fd361982 | 2525 | bfd_vma secaddr = bfd_section_vma (sec); |
aa69fe43 HPN |
2526 | |
2527 | /* Same goes as for MMO_TEXT_SECTION_NAME above. */ | |
2528 | if (sec->size != 0 | |
2529 | && (secaddr < (bfd_vma) 0x20 << 56 | |
2530 | || secaddr + sec->size >= (bfd_vma) 0x21 << 56 | |
2531 | || (secaddr & 3) != 0 | |
2532 | || (sec->size & 3) != 0 | |
2533 | || mmo_has_leading_or_trailing_zero_tetra_p (abfd, sec))) | |
2534 | { | |
2535 | if (!mmo_write_section_description (abfd, sec)) | |
0a1b45a2 | 2536 | return false; |
aa69fe43 HPN |
2537 | } |
2538 | ||
2539 | return mmo_write_loc_chunk_list (abfd, mmo_section_data (sec)->head); | |
2540 | } | |
3c3bdf30 NC |
2541 | else if (strcmp (sec->name, MMIX_REG_CONTENTS_SECTION_NAME) == 0) |
2542 | /* Not handled here. */ | |
2543 | { | |
2544 | /* This would normally be an abort call since this can't happen, but | |
07d6d2b8 | 2545 | we don't do that. */ |
3c3bdf30 | 2546 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2547 | return false; |
3c3bdf30 | 2548 | } |
08dedd66 | 2549 | else if (startswith (sec->name, MMIX_OTHER_SPEC_SECTION_PREFIX)) |
3c3bdf30 NC |
2550 | { |
2551 | int n = atoi (sec->name + strlen (MMIX_OTHER_SPEC_SECTION_PREFIX)); | |
0112cd26 | 2552 | |
3c3bdf30 | 2553 | mmo_write_tetra_raw (abfd, (LOP << 24) | (LOP_SPEC << 16) | n); |
82e51918 | 2554 | return (! abfd->tdata.mmo_data->have_error |
68bfbfcc | 2555 | && mmo_write_chunk_list (abfd, mmo_section_data (sec)->head)); |
3c3bdf30 NC |
2556 | } |
2557 | /* Ignore sections that are just allocated or empty; we write out | |
2558 | _contents_ here. */ | |
fd361982 | 2559 | else if ((bfd_section_flags (sec) & SEC_HAS_CONTENTS) != 0 |
eea6121a | 2560 | && sec->size != 0) |
3c3bdf30 | 2561 | { |
aa69fe43 | 2562 | if (!mmo_write_section_description (abfd, sec)) |
0a1b45a2 | 2563 | return false; |
aa69fe43 HPN |
2564 | |
2565 | /* Writing a LOP_LOC ends the LOP_SPEC data, and makes data actually | |
2566 | loaded. */ | |
fd361982 | 2567 | if (bfd_section_flags (sec) & SEC_LOAD) |
aa69fe43 HPN |
2568 | return (! abfd->tdata.mmo_data->have_error |
2569 | && mmo_write_loc_chunk_list (abfd, | |
2570 | mmo_section_data (sec)->head)); | |
2571 | return (! abfd->tdata.mmo_data->have_error | |
2572 | && mmo_write_chunk_list (abfd, mmo_section_data (sec)->head)); | |
2573 | } | |
2574 | ||
2575 | /* Some section without contents. */ | |
0a1b45a2 | 2576 | return true; |
aa69fe43 HPN |
2577 | } |
2578 | ||
2579 | /* Write the description of a section, extended-mmo-style. */ | |
2580 | ||
0a1b45a2 | 2581 | static bool |
278b4623 | 2582 | mmo_write_section_description (bfd *abfd, asection *sec) |
aa69fe43 HPN |
2583 | { |
2584 | /* Keep the following document-comment formatted the way it is. */ | |
3c3bdf30 NC |
2585 | /* |
2586 | INODE | |
2587 | mmo section mapping, , Symbol-table, mmo | |
2588 | SUBSECTION | |
2589 | mmo section mapping | |
2590 | ||
2591 | The implementation in BFD uses special data type 80 (decimal) to | |
2592 | encapsulate and describe named sections, containing e.g.@: debug | |
2593 | information. If needed, any datum in the encapsulation will be | |
2594 | quoted using lop_quote. First comes a 32-bit word holding the | |
2595 | number of 32-bit words containing the zero-terminated zero-padded | |
2596 | segment name. After the name there's a 32-bit word holding flags | |
2597 | describing the section type. Then comes a 64-bit big-endian word | |
2598 | with the section length (in bytes), then another with the section | |
2599 | start address. Depending on the type of section, the contents | |
2600 | might follow, zero-padded to 32-bit boundary. For a loadable | |
2601 | section (such as data or code), the contents might follow at some | |
2602 | later point, not necessarily immediately, as a lop_loc with the | |
2603 | same start address as in the section description, followed by the | |
2604 | contents. This in effect forms a descriptor that must be emitted | |
2605 | before the actual contents. Sections described this way must not | |
2606 | overlap. | |
2607 | ||
2608 | For areas that don't have such descriptors, synthetic sections are | |
2609 | formed by BFD. Consecutive contents in the two memory areas | |
2610 | @samp{0x0000@dots{}00} to @samp{0x01ff@dots{}ff} and | |
2611 | @samp{0x2000@dots{}00} to @samp{0x20ff@dots{}ff} are entered in | |
2612 | sections named <<.text>> and <<.data>> respectively. If an area | |
2613 | is not otherwise described, but would together with a neighboring | |
2614 | lower area be less than @samp{0x40000000} bytes long, it is joined | |
2615 | with the lower area and the gap is zero-filled. For other cases, | |
2616 | a new section is formed, named <<.MMIX.sec.@var{n}>>. Here, | |
2617 | @var{n} is a number, a running count through the mmo file, | |
2618 | starting at 0. | |
2619 | ||
2620 | EXAMPLE | |
2621 | A loadable section specified as: | |
2622 | ||
2623 | | .section secname,"ax" | |
2624 | | TETRA 1,2,3,4,-1,-2009 | |
2625 | | BYTE 80 | |
2626 | ||
2627 | and linked to address @samp{0x4}, is represented by the sequence: | |
2628 | ||
2629 | | 0x98080050 - lop_spec 80 | |
2630 | | 0x00000002 - two 32-bit words for the section name | |
2631 | | 0x7365636e - "secn" | |
2632 | | 0x616d6500 - "ame\0" | |
2633 | | 0x00000033 - flags CODE, READONLY, LOAD, ALLOC | |
2634 | | 0x00000000 - high 32 bits of section length | |
2635 | | 0x0000001c - section length is 28 bytes; 6 * 4 + 1 + alignment to 32 bits | |
2636 | | 0x00000000 - high 32 bits of section address | |
2637 | | 0x00000004 - section address is 4 | |
2638 | | 0x98010002 - 64 bits with address of following data | |
dfa36a69 HPN |
2639 | | 0x00000000 - high 32 bits of address |
2640 | | 0x00000004 - low 32 bits: data starts at address 4 | |
3c3bdf30 NC |
2641 | | 0x00000001 - 1 |
2642 | | 0x00000002 - 2 | |
2643 | | 0x00000003 - 3 | |
2644 | | 0x00000004 - 4 | |
2645 | | 0xffffffff - -1 | |
2646 | | 0xfffff827 - -2009 | |
2647 | | 0x50000000 - 80 as a byte, padded with zeros. | |
2648 | ||
2649 | Note that the lop_spec wrapping does not include the section | |
2650 | contents. Compare this to a non-loaded section specified as: | |
2651 | ||
2652 | | .section thirdsec | |
2653 | | TETRA 200001,100002 | |
2654 | | BYTE 38,40 | |
2655 | ||
2656 | This, when linked to address @samp{0x200000000000001c}, is | |
2657 | represented by: | |
2658 | ||
2659 | | 0x98080050 - lop_spec 80 | |
2660 | | 0x00000002 - two 32-bit words for the section name | |
2661 | | 0x7365636e - "thir" | |
2662 | | 0x616d6500 - "dsec" | |
2663 | | 0x00000010 - flag READONLY | |
2664 | | 0x00000000 - high 32 bits of section length | |
2665 | | 0x0000000c - section length is 12 bytes; 2 * 4 + 2 + alignment to 32 bits | |
dfa36a69 HPN |
2666 | | 0x20000000 - high 32 bits of address |
2667 | | 0x0000001c - low 32 bits of address 0x200000000000001c | |
3c3bdf30 NC |
2668 | | 0x00030d41 - 200001 |
2669 | | 0x000186a2 - 100002 | |
2670 | | 0x26280000 - 38, 40 as bytes, padded with zeros | |
2671 | ||
dfa36a69 | 2672 | For the latter example, the section contents must not be |
3c3bdf30 NC |
2673 | loaded in memory, and is therefore specified as part of the |
2674 | special data. The address is usually unimportant but might | |
2675 | provide information for e.g.@: the DWARF 2 debugging format. */ | |
2676 | ||
aa69fe43 HPN |
2677 | mmo_write_tetra_raw (abfd, LOP_SPEC_SECTION); |
2678 | mmo_write_tetra (abfd, (strlen (sec->name) + 3) / 4); | |
f075ee0c | 2679 | mmo_write_chunk (abfd, (bfd_byte *) sec->name, strlen (sec->name)); |
aa69fe43 HPN |
2680 | mmo_flush_chunk (abfd); |
2681 | /* FIXME: We can get debug sections (.debug_line & Co.) with a section | |
2682 | flag still having SEC_RELOC set. Investigate. This might be true | |
2683 | for all alien sections; perhaps mmo.em should clear that flag. Might | |
2684 | be related to weak references. */ | |
2685 | mmo_write_tetra (abfd, | |
fd361982 | 2686 | mmo_sec_flags_from_bfd_flags (bfd_section_flags (sec))); |
aa69fe43 | 2687 | mmo_write_octa (abfd, sec->size); |
fd361982 | 2688 | mmo_write_octa (abfd, bfd_section_vma (sec)); |
0a1b45a2 | 2689 | return true; |
3c3bdf30 NC |
2690 | } |
2691 | ||
2692 | /* We save up all data before output. */ | |
2693 | ||
0a1b45a2 | 2694 | static bool |
278b4623 HPN |
2695 | mmo_set_section_contents (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sec, |
2696 | const void *location, file_ptr offset, | |
2697 | bfd_size_type bytes_to_do) | |
3c3bdf30 NC |
2698 | { |
2699 | /* Iterate over diminishing chunk sizes, copying contents. */ | |
2700 | while (bytes_to_do) | |
2701 | { | |
2702 | /* A minor song-and-dance to make sure we're not bitten by the | |
2703 | distant possibility of the cast from bfd_vma to int making the | |
2704 | chunk zero-sized. */ | |
2705 | int chunk_size | |
2706 | = (int) bytes_to_do != 0 ? bytes_to_do : MMO_SEC_CONTENTS_CHUNK_SIZE; | |
2707 | bfd_byte *loc; | |
2708 | ||
2709 | do | |
2710 | loc = mmo_get_loc (sec, sec->vma + offset, chunk_size); | |
2711 | while (loc == NULL && (chunk_size /= 2) != 0); | |
2712 | ||
2713 | if (chunk_size == 0) | |
0a1b45a2 | 2714 | return false; |
3c3bdf30 NC |
2715 | |
2716 | memcpy (loc, location, chunk_size); | |
2717 | ||
28cc9170 | 2718 | location = (bfd_byte *) location + chunk_size; |
3c3bdf30 NC |
2719 | bytes_to_do -= chunk_size; |
2720 | offset += chunk_size; | |
2721 | } | |
0a1b45a2 | 2722 | return true; |
3c3bdf30 NC |
2723 | } |
2724 | ||
2725 | /* Add a symbol to a trie-tree. */ | |
2726 | ||
0a1b45a2 | 2727 | static bool |
278b4623 HPN |
2728 | mmo_internal_add_3_sym (bfd *abfd, struct mmo_symbol_trie *rootp, |
2729 | const struct mmo_symbol *symp) | |
3c3bdf30 | 2730 | { |
3f9c735e | 2731 | const char *name = symp->name; |
3c3bdf30 NC |
2732 | struct mmo_symbol_trie *trie = rootp; |
2733 | struct mmo_symbol_trie **triep = NULL; | |
2734 | ||
2735 | while (*name && trie != NULL) | |
2736 | { | |
2737 | if (*name < trie->symchar) | |
2738 | { | |
2739 | triep = &trie->left; | |
2740 | trie = trie->left; | |
2741 | } | |
2742 | else if (*name > trie->symchar) | |
2743 | { | |
2744 | triep = &trie->right; | |
2745 | trie = trie->right; | |
2746 | } | |
2747 | else if (*name == trie->symchar) | |
2748 | { | |
2749 | triep = &trie->middle; | |
2750 | name++; | |
2751 | ||
2752 | /* Make sure "trie" points to where we should fill in the | |
2753 | current symbol whenever we've iterated through "name". We | |
2754 | would lose the right position if we encounter "foobar" then | |
2755 | "foo". */ | |
2756 | if (*name) | |
2757 | trie = trie->middle; | |
2758 | } | |
2759 | } | |
2760 | ||
2761 | while (*name != 0) | |
2762 | { | |
2763 | /* Create middle branches for the rest of the characters. */ | |
2764 | trie = bfd_zalloc (abfd, sizeof (struct mmo_symbol_trie)); | |
2765 | *triep = trie; | |
2766 | trie->symchar = *name++; | |
2767 | triep = &trie->middle; | |
2768 | } | |
2769 | ||
2770 | /* We discover a duplicate symbol rather late in the process, but still; | |
2771 | we discover it and bail out. */ | |
2772 | if (trie->sym.name != NULL) | |
2773 | { | |
4eca0228 | 2774 | _bfd_error_handler |
695344c0 | 2775 | /* xgettext:c-format */ |
871b3ab2 | 2776 | (_("%pB: invalid symbol table: duplicate symbol `%s'\n"), |
dae82561 | 2777 | abfd, trie->sym.name); |
3c3bdf30 | 2778 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 2779 | return false; |
3c3bdf30 NC |
2780 | } |
2781 | ||
2782 | memcpy (&trie->sym, symp, sizeof *symp); | |
0a1b45a2 | 2783 | return true; |
3c3bdf30 NC |
2784 | } |
2785 | ||
2786 | /* Find out the length of the serialized version of a trie in bytes. */ | |
2787 | ||
2788 | static unsigned int | |
278b4623 | 2789 | mmo_internal_3_length (bfd *abfd, struct mmo_symbol_trie *trie) |
3c3bdf30 NC |
2790 | { |
2791 | /* First, one for the control byte. */ | |
2792 | unsigned int length = 1; | |
2793 | ||
2794 | if (trie == NULL) | |
2795 | return 0; | |
2796 | ||
2797 | /* Add in the recursion to the left. */ | |
2798 | length += mmo_internal_3_length (abfd, trie->left); | |
2799 | ||
2800 | /* Add in the middle trie and the character. */ | |
2801 | length += 1 + mmo_internal_3_length (abfd, trie->middle); | |
2802 | ||
2803 | /* Add in the recursion to the right. */ | |
2804 | length += mmo_internal_3_length (abfd, trie->right); | |
2805 | ||
2806 | /* Add in bytes for the symbol (if this is an endnode). */ | |
2807 | if (trie->sym.name != NULL) | |
2808 | { | |
2809 | unsigned int serno = trie->sym.serno; | |
2810 | ||
2811 | /* First what it takes to encode the value. */ | |
2812 | if (trie->sym.sym_type == mmo_reg_sym) | |
2813 | length++; | |
2814 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2815 | length += 2; | |
2816 | else | |
2817 | { | |
2818 | bfd_vma value = trie->sym.value; | |
2819 | ||
2820 | /* Coded in one to eight following bytes. */ | |
2821 | if (trie->sym.sym_type == mmo_data_sym) | |
2822 | value -= (bfd_vma) 0x20 << 56; | |
2823 | ||
2824 | do | |
2825 | { | |
2826 | value >>= 8; | |
2827 | length++; | |
2828 | } | |
2829 | while (value != 0); | |
2830 | } | |
2831 | ||
2832 | /* Find out what it takes to encode the serial number. */ | |
2833 | do | |
2834 | { | |
2835 | serno >>= 7; | |
2836 | length++; | |
2837 | } | |
2838 | while (serno != 0); | |
2839 | } | |
2840 | ||
2841 | return length; | |
2842 | } | |
2843 | ||
2844 | /* Helper function for outputting the serial number of a symbol, output as | |
2845 | a variant of leb128 (see dwarf2 documentation) which could be called | |
2846 | beb128. Using a helper function and recursion simplifies debugging. */ | |
2847 | ||
2848 | static void | |
278b4623 | 2849 | mmo_beb128_out (bfd *abfd, int serno, int marker) |
3c3bdf30 NC |
2850 | { |
2851 | if (serno & ~0x7f) | |
2852 | mmo_beb128_out (abfd, serno >> 7, 0); | |
2853 | mmo_write_byte (abfd, marker | (serno & 0x7f)); | |
2854 | } | |
2855 | ||
2856 | /* Serialize a trie. */ | |
2857 | ||
2858 | static void | |
278b4623 | 2859 | mmo_internal_3_dump (bfd *abfd, struct mmo_symbol_trie *trie) |
3c3bdf30 NC |
2860 | { |
2861 | bfd_byte control = 0; | |
2862 | ||
2863 | if (trie == NULL) | |
2864 | return; | |
2865 | ||
2866 | if (trie->left) | |
2867 | control |= MMO3_LEFT; | |
2868 | ||
2869 | if (trie->middle) | |
2870 | control |= MMO3_MIDDLE; | |
2871 | ||
2872 | if (trie->right) | |
2873 | control |= MMO3_RIGHT; | |
2874 | ||
2875 | if (trie->sym.name != NULL) | |
2876 | { | |
2877 | /* Encode the symbol type and length of value bytes. */ | |
2878 | if (trie->sym.sym_type == mmo_reg_sym) | |
2879 | control |= MMO3_REGQUAL_BITS; | |
2880 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2881 | control |= MMO3_UNDEF; | |
2882 | else | |
2883 | { | |
2884 | bfd_vma value = trie->sym.value; | |
2885 | ||
2886 | /* Coded in 1..8 following bytes. */ | |
2887 | if (trie->sym.sym_type == mmo_data_sym) | |
2888 | { | |
2889 | control |= MMO3_DATA; | |
2890 | value -= (bfd_vma) 0x20 << 56; | |
2891 | } | |
2892 | ||
2893 | do | |
2894 | { | |
2895 | value >>= 8; | |
2896 | control++; | |
2897 | } | |
2898 | while (value != 0); | |
2899 | } | |
2900 | } | |
2901 | ||
2902 | /* The control byte is output before recursing. */ | |
2903 | mmo_write_byte (abfd, control); | |
2904 | ||
2905 | mmo_internal_3_dump (abfd, trie->left); | |
2906 | ||
2907 | if (control & MMO3_SYMBITS) | |
2908 | { | |
2909 | mmo_write_byte (abfd, trie->symchar); | |
2910 | ||
2911 | if (trie->sym.name != NULL) | |
2912 | { | |
2913 | if (trie->sym.sym_type == mmo_reg_sym) | |
2914 | mmo_write_byte (abfd, trie->sym.value); | |
2915 | else if (trie->sym.sym_type == mmo_undef_sym) | |
2916 | { | |
2917 | mmo_write_byte (abfd, 0); | |
2918 | mmo_write_byte (abfd, 0); | |
2919 | } | |
2920 | else | |
2921 | { | |
2922 | bfd_vma value = trie->sym.value; | |
2923 | ||
2924 | bfd_byte byte_n = control & 15; | |
2925 | ||
2926 | /* Coded in 1..8 following bytes. Note that the value is | |
2927 | shifted out big-endian. */ | |
2928 | if (trie->sym.sym_type == mmo_data_sym) | |
2929 | { | |
2930 | value -= (bfd_vma) 0x20 << 56; | |
2931 | byte_n -= 8; | |
2932 | } | |
2933 | ||
2934 | do | |
2935 | { | |
2936 | mmo_write_byte (abfd, (value >> ((byte_n - 1) * 8)) & 0xff); | |
2937 | byte_n--; | |
2938 | } | |
2939 | while (byte_n != 0); | |
2940 | } | |
2941 | ||
2942 | mmo_beb128_out (abfd, trie->sym.serno, 128); | |
2943 | } | |
2944 | mmo_internal_3_dump (abfd, trie->middle); | |
2945 | } | |
2946 | mmo_internal_3_dump (abfd, trie->right); | |
2947 | } | |
2948 | ||
dfa36a69 | 2949 | /* Write symbols in mmo format. Also write the lop_end terminator. */ |
3c3bdf30 | 2950 | |
0a1b45a2 | 2951 | static bool |
278b4623 | 2952 | mmo_write_symbols_and_terminator (bfd *abfd) |
3c3bdf30 NC |
2953 | { |
2954 | int count = bfd_get_symcount (abfd); | |
3c3bdf30 | 2955 | asymbol **table; |
dfa36a69 HPN |
2956 | asymbol **orig_table = bfd_get_outsymbols (abfd); |
2957 | int serno; | |
3c3bdf30 NC |
2958 | struct mmo_symbol_trie root; |
2959 | int trie_len; | |
2960 | int i; | |
2961 | bfd_byte buf[4]; | |
2962 | ||
2963 | /* Create a symbol for "Main". */ | |
dfa36a69 | 2964 | asymbol *fakemain = bfd_make_empty_symbol (abfd); |
3c3bdf30 | 2965 | |
dfa36a69 HPN |
2966 | fakemain->flags = BSF_GLOBAL; |
2967 | fakemain->value = bfd_get_start_address (abfd); | |
2968 | fakemain->name = MMIX_START_SYMBOL_NAME; | |
2969 | fakemain->section = bfd_abs_section_ptr; | |
3c3bdf30 NC |
2970 | |
2971 | memset (&root, 0, sizeof (root)); | |
2972 | ||
2973 | /* Make all symbols take a left turn. */ | |
2974 | root.symchar = 0xff; | |
2975 | ||
dfa36a69 HPN |
2976 | /* There must always be a ":Main", so we'll add one if there are no |
2977 | symbols. Make sure we have room for it. */ | |
2978 | table = bfd_alloc (abfd, (count + 1) * sizeof (asymbol *)); | |
2979 | if (table == NULL) | |
0a1b45a2 | 2980 | return false; |
dfa36a69 | 2981 | |
00bc5e68 AM |
2982 | if (count != 0) |
2983 | memcpy (table, orig_table, count * sizeof (asymbol *)); | |
dfa36a69 HPN |
2984 | |
2985 | /* Move :Main (if there is one) to the first position. This is | |
2986 | necessary to get the same layout of the trie-tree when linking as | |
2987 | when objcopying the result as in the objcopy.exp test "simple objcopy | |
2988 | of executable". It also automatically takes care of assigning serial | |
2989 | number 1 to :Main (as is mandatory). */ | |
2990 | for (i = 0; i < count; i++) | |
2991 | if (table[i] != NULL | |
2992 | && strcmp (table[i]->name, MMIX_START_SYMBOL_NAME) == 0 | |
2993 | && (table[i]->flags & (BSF_DEBUGGING|BSF_GLOBAL)) == BSF_GLOBAL) | |
2994 | { | |
2995 | asymbol *mainsym = table[i]; | |
f9c62303 HPN |
2996 | bfd_vma mainvalue |
2997 | = (mainsym->value | |
2998 | + mainsym->section->output_section->vma | |
2999 | + mainsym->section->output_offset); | |
c287bfe4 | 3000 | memcpy (table + 1, orig_table, i * sizeof (asymbol *)); |
dfa36a69 HPN |
3001 | table[0] = mainsym; |
3002 | ||
3003 | /* Check that the value assigned to :Main is the same as the entry | |
3004 | address. The default linker script asserts this. This is as | |
3005 | good a place as any to check this consistency. */ | |
c287bfe4 HPN |
3006 | if (mainvalue != bfd_get_start_address (abfd) |
3007 | && !mmo_ignore_symbol_consistency (abfd)) | |
dfa36a69 HPN |
3008 | { |
3009 | /* Arbitrary buffer to hold the printable representation of a | |
3010 | vma. */ | |
dfa36a69 HPN |
3011 | bfd_vma vma_start = bfd_get_start_address (abfd); |
3012 | ||
4eca0228 | 3013 | _bfd_error_handler |
695344c0 | 3014 | /* xgettext:c-format */ |
f493c217 AM |
3015 | (_("%pB: bad symbol definition: `Main' set to %" PRIx64 " rather" |
3016 | " than the start address %" PRIx64 "\n"), | |
3017 | abfd, mainvalue, vma_start); | |
dfa36a69 | 3018 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3019 | return false; |
dfa36a69 HPN |
3020 | } |
3021 | break; | |
3022 | } | |
3023 | if (i == count && count != 0) | |
3c3bdf30 | 3024 | { |
dfa36a69 HPN |
3025 | /* When there are symbols, there must be a :Main. There was no |
3026 | :Main, so we need to add it manually. */ | |
3027 | memcpy (table + 1, orig_table, count * sizeof (asymbol *)); | |
3028 | table[0] = fakemain; | |
3029 | count++; | |
3c3bdf30 | 3030 | } |
3c3bdf30 | 3031 | |
11509220 HPN |
3032 | /* Don't bother inspecting symbols in plugin dummy objects; their |
3033 | symbols aren't fully inspectable. */ | |
3034 | if ((abfd->flags & BFD_PLUGIN) == 0) | |
3c3bdf30 | 3035 | { |
11509220 HPN |
3036 | for (i = 0, serno = 1; i < count && table[i] != NULL; i++) |
3037 | { | |
3038 | asymbol *s = table[i]; | |
3c3bdf30 | 3039 | |
11509220 HPN |
3040 | /* It's not enough to consult bfd_is_local_label, since it does not |
3041 | mean "local" in the sense of linkable-and-observable-after-link. | |
3042 | Let's just check the BSF_GLOBAL flag. | |
3c3bdf30 | 3043 | |
11509220 HPN |
3044 | Also, don't export symbols with characters not in the |
3045 | allowed set. */ | |
3046 | if ((s->flags & (BSF_DEBUGGING|BSF_GLOBAL)) == BSF_GLOBAL | |
3047 | && strspn (s->name, | |
3048 | valid_mmo_symbol_character_set) == strlen (s->name)) | |
3c3bdf30 | 3049 | { |
11509220 HPN |
3050 | struct mmo_symbol sym; |
3051 | memset (&sym, 0, sizeof (sym)); | |
3052 | ||
3053 | /* Need to strip const here; strdup:ing would leak and the | |
3054 | existing string must be safe to reuse. */ | |
3055 | sym.name = (char *) s->name; | |
3056 | sym.value = | |
3057 | s->value | |
3058 | + s->section->output_section->vma | |
3059 | + s->section->output_offset; | |
3060 | ||
3061 | if (bfd_is_und_section (s->section)) | |
3062 | sym.sym_type = mmo_undef_sym; | |
3063 | else if (strcmp (s->section->name, MMO_DATA_SECTION_NAME) == 0 | |
3064 | /* The encoding of data symbols require that the "rest" | |
3065 | of the value fits in 6 bytes, so the upper two bytes | |
3066 | must be 0x2000. All other symbols get to be the | |
3067 | absolute type. */ | |
3068 | && (sym.value >> 48) == 0x2000) | |
3069 | sym.sym_type = mmo_data_sym; | |
3070 | else if (strcmp (s->section->name, MMIX_REG_SECTION_NAME) == 0) | |
3071 | sym.sym_type = mmo_reg_sym; | |
3072 | else if (strcmp (s->section->name, | |
3073 | MMIX_REG_CONTENTS_SECTION_NAME) == 0) | |
3074 | { | |
3075 | sym.sym_type = mmo_reg_sym; | |
3076 | sym.value /= 8; | |
3077 | } | |
3078 | else | |
3079 | sym.sym_type = mmo_abs_sym; | |
3c3bdf30 | 3080 | |
11509220 HPN |
3081 | /* FIXME: We assume the order of the received symbols is an |
3082 | ordered mapping of the serial numbers. This is not | |
3083 | necessarily true if we e.g. objcopy a mmo file to another and | |
3084 | there are gaps in the numbering. Not sure if this can | |
3085 | happen. Not sure what to do. */ | |
3086 | sym.serno = serno++; | |
3c3bdf30 | 3087 | |
11509220 | 3088 | if (! mmo_internal_add_3_sym (abfd, &root, &sym)) |
0a1b45a2 | 3089 | return false; |
11509220 | 3090 | } |
3c3bdf30 NC |
3091 | } |
3092 | } | |
3093 | ||
3094 | /* Change the root node to be a ":"-prefix. */ | |
3095 | root.symchar = ':'; | |
3096 | root.middle = root.left; | |
3097 | root.right = NULL; | |
3098 | root.left = NULL; | |
3099 | ||
3100 | /* We have to find out if we can fit the whole symbol table in the mmo | |
3101 | symtab. It would be bad to assume we can always fit it in 262144 | |
3102 | bytes. If we can't, just leave the Main symbol. */ | |
3103 | trie_len = (mmo_internal_3_length (abfd, &root) + 3)/4; | |
3104 | ||
3105 | if (trie_len > 0xffff) | |
3106 | { | |
3107 | /* Test this code by using a lower limit in the test above and check | |
3108 | that the single "Main" symbol is emitted and handled properly. | |
3109 | There's no specific test-case. */ | |
3110 | struct mmo_symbol sym; | |
3111 | ||
4eca0228 | 3112 | _bfd_error_handler |
695344c0 | 3113 | /* xgettext:c-format */ |
871b3ab2 | 3114 | (_("%pB: warning: symbol table too large for mmo, larger than 65535" |
278b4623 | 3115 | " 32-bit words: %d. Only `Main' will be emitted.\n"), |
dae82561 | 3116 | abfd, trie_len); |
3c3bdf30 NC |
3117 | |
3118 | memset (&sym, 0, sizeof (sym)); | |
3119 | sym.sym_type = mmo_abs_sym; | |
3120 | sym.name = MMIX_START_SYMBOL_NAME; | |
3121 | sym.serno = 1; | |
3122 | sym.value = bfd_get_start_address (abfd); | |
3123 | ||
3124 | /* Then patch up a symbol table to be just the ":Main" symbol. */ | |
3125 | memset (&root, 0, sizeof (root)); | |
3126 | root.left = root.middle; | |
3127 | root.symchar = 0xff; | |
3128 | root.middle = NULL; | |
3129 | root.right = NULL; | |
3130 | ||
3131 | if (! mmo_internal_add_3_sym (abfd, &root, &sym)) | |
0a1b45a2 | 3132 | return false; |
3c3bdf30 NC |
3133 | |
3134 | root.symchar = ':'; | |
3135 | root.middle = root.left; | |
3136 | root.right = NULL; | |
3137 | root.left = NULL; | |
3138 | ||
3139 | trie_len = (mmo_internal_3_length (abfd, &root) + 3)/4; | |
3140 | } | |
3141 | ||
3142 | /* Reset the written-bytes counter. */ | |
3143 | abfd->tdata.mmo_data->byte_no = 0; | |
3144 | ||
3145 | /* Put out the lop_stab mark. */ | |
3146 | bfd_put_32 (abfd, (LOP << 24) | (LOP_STAB << 16), buf); | |
226f9f4f | 3147 | if (bfd_write (buf, 4, abfd) != 4) |
0a1b45a2 | 3148 | return false; |
3c3bdf30 NC |
3149 | |
3150 | /* Dump out symbols. */ | |
3151 | mmo_internal_3_dump (abfd, &root); | |
3152 | ||
3153 | if (trie_len != (abfd->tdata.mmo_data->byte_no + 3)/4) | |
3154 | { | |
3155 | /* I haven't seen this trig. It seems no use claiming this case | |
3156 | isn't debugged and abort if we get here. Instead emit a | |
3157 | diagnostic and fail "normally". */ | |
4eca0228 | 3158 | _bfd_error_handler |
695344c0 | 3159 | /* xgettext:c-format */ |
871b3ab2 | 3160 | (_("%pB: internal error, symbol table changed size from %d to %d" |
278b4623 | 3161 | " words\n"), |
dae82561 | 3162 | abfd, trie_len, |
3c3bdf30 NC |
3163 | (abfd->tdata.mmo_data->byte_no + 3)/4); |
3164 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3165 | return false; |
3c3bdf30 NC |
3166 | } |
3167 | ||
3168 | /* Dump out remaining bytes in the buffer and handle I/O errors by | |
3169 | propagating errors. */ | |
3170 | if ((abfd->tdata.mmo_data->byte_no % 4) != 0 | |
3171 | || abfd->tdata.mmo_data->have_error) | |
3172 | { | |
3173 | memset (abfd->tdata.mmo_data->buf + (abfd->tdata.mmo_data->byte_no % 4), | |
3174 | 0, 4 - (abfd->tdata.mmo_data->byte_no % 4)); | |
3175 | ||
3176 | if (abfd->tdata.mmo_data->have_error | |
226f9f4f | 3177 | || bfd_write (abfd->tdata.mmo_data->buf, 4, abfd) != 4) |
0a1b45a2 | 3178 | return false; |
3c3bdf30 NC |
3179 | } |
3180 | ||
3181 | bfd_put_32 (abfd, (LOP << 24) | (LOP_END << 16) | trie_len, buf); | |
226f9f4f | 3182 | return bfd_write (buf, 4, abfd) == 4; |
3c3bdf30 NC |
3183 | } |
3184 | ||
3185 | /* Write section unless it is the register contents section. For that, we | |
3186 | instead store the section in the supplied pointer. This function is | |
3187 | used through bfd_map_over_sections. */ | |
3188 | ||
3189 | static void | |
278b4623 | 3190 | mmo_write_section_unless_reg_contents (bfd *abfd, asection *sec, void *p) |
3c3bdf30 NC |
3191 | { |
3192 | struct mmo_write_sec_info *infop = (struct mmo_write_sec_info *) p; | |
3193 | ||
82e51918 | 3194 | if (! infop->retval) |
3c3bdf30 NC |
3195 | return; |
3196 | ||
3197 | if (strcmp (sec->name, MMIX_REG_CONTENTS_SECTION_NAME) == 0) | |
3198 | { | |
3199 | infop->reg_section = sec; | |
3200 | return; | |
3201 | } | |
3202 | ||
3203 | /* Exclude the convenience register section. */ | |
3204 | if (strcmp (sec->name, MMIX_REG_SECTION_NAME) == 0) | |
3205 | { | |
fd361982 | 3206 | if (bfd_section_flags (sec) & SEC_HAS_CONTENTS) |
3c3bdf30 NC |
3207 | { |
3208 | /* Make sure it hasn't got contents. It seems impossible to | |
3209 | make it carry contents, so we don't have a test-case for | |
3210 | this. */ | |
4eca0228 | 3211 | _bfd_error_handler |
695344c0 | 3212 | /* xgettext:c-format */ |
871b3ab2 | 3213 | (_("%pB: internal error, internal register section %pA had" |
278b4623 | 3214 | " contents\n"), |
dae82561 | 3215 | abfd, sec); |
3c3bdf30 | 3216 | bfd_set_error (bfd_error_bad_value); |
0a1b45a2 | 3217 | infop->retval = false; |
3c3bdf30 NC |
3218 | return; |
3219 | } | |
3220 | ||
3221 | return; | |
3222 | } | |
3223 | ||
3224 | infop->retval = mmo_internal_write_section (abfd, sec); | |
3225 | } | |
3226 | ||
3227 | /* Do the actual output of a file. Assumes mmo_set_section_contents is | |
3228 | already called. */ | |
3229 | ||
0a1b45a2 | 3230 | static bool |
278b4623 | 3231 | mmo_write_object_contents (bfd *abfd) |
3c3bdf30 NC |
3232 | { |
3233 | struct mmo_write_sec_info wsecinfo; | |
3234 | ||
3235 | /* First, there are a few words of preamble. */ | |
3236 | if (! mmo_internal_write_header (abfd)) | |
0a1b45a2 | 3237 | return false; |
3c3bdf30 NC |
3238 | |
3239 | wsecinfo.reg_section = NULL; | |
0a1b45a2 | 3240 | wsecinfo.retval = true; |
3c3bdf30 NC |
3241 | |
3242 | bfd_map_over_sections (abfd, mmo_write_section_unless_reg_contents, | |
278b4623 | 3243 | &wsecinfo); |
3c3bdf30 | 3244 | |
82e51918 | 3245 | if (! wsecinfo.retval) |
0a1b45a2 | 3246 | return false; |
3c3bdf30 NC |
3247 | |
3248 | if (wsecinfo.reg_section != NULL) | |
3249 | { | |
3250 | asection *sec = wsecinfo.reg_section; | |
3251 | unsigned int z = (unsigned int) (sec->vma / 8); | |
3252 | ||
3253 | /* Registers 0..31 must not be global. Do sanity check on the "vma" | |
3254 | of the register contents section and check that it corresponds to | |
3255 | the length of the section. */ | |
3256 | if (z < 32 || z >= 255 || (sec->vma & 7) != 0 | |
eea6121a | 3257 | || sec->vma != 256 * 8 - sec->size - 8) |
3c3bdf30 NC |
3258 | { |
3259 | bfd_set_error (bfd_error_bad_value); | |
3260 | ||
eea6121a | 3261 | if (sec->size == 0) |
3c3bdf30 | 3262 | /* There must always be at least one such register. */ |
4eca0228 | 3263 | _bfd_error_handler |
871b3ab2 | 3264 | (_("%pB: no initialized registers; section length 0\n"), |
dae82561 | 3265 | abfd); |
3c3bdf30 NC |
3266 | else if (sec->vma > (256 - 32) * 8) |
3267 | /* Provide better error message for the case of too many | |
3268 | global registers. */ | |
4eca0228 | 3269 | _bfd_error_handler |
695344c0 | 3270 | /* xgettext:c-format */ |
2dcf00ce AM |
3271 | (_("%pB: too many initialized registers; section length %" PRId64), |
3272 | abfd, (int64_t) sec->size); | |
3c3bdf30 | 3273 | else |
4eca0228 | 3274 | _bfd_error_handler |
695344c0 | 3275 | /* xgettext:c-format */ |
871b3ab2 | 3276 | (_("%pB: invalid start address for initialized registers of" |
2dcf00ce AM |
3277 | " length %" PRId64 ": %#" PRIx64), |
3278 | abfd, (int64_t) sec->size, (uint64_t) sec->vma); | |
3c3bdf30 | 3279 | |
0a1b45a2 | 3280 | return false; |
3c3bdf30 NC |
3281 | } |
3282 | ||
3283 | if (! mmo_internal_write_post (abfd, z, sec)) | |
0a1b45a2 | 3284 | return false; |
3c3bdf30 NC |
3285 | } |
3286 | else | |
3287 | if (! mmo_internal_write_post (abfd, 255, NULL)) | |
0a1b45a2 | 3288 | return false; |
3c3bdf30 NC |
3289 | |
3290 | return mmo_write_symbols_and_terminator (abfd); | |
3291 | } | |
3292 | ||
3c3bdf30 NC |
3293 | /* If there's anything in particular in a mmo bfd that we want to free, |
3294 | make this a real function. Only do this if you see major memory | |
3295 | thrashing; zealous free:ing will cause unwanted behavior, especially if | |
3296 | you "free" memory allocated with "bfd_alloc", or even "bfd_release" a | |
3297 | block allocated with "bfd_alloc"; they're really allocated from an | |
3298 | obstack, and we don't know what was allocated there since this | |
3299 | particular allocation. */ | |
3300 | ||
3301 | #define mmo_close_and_cleanup _bfd_generic_close_and_cleanup | |
3302 | #define mmo_bfd_free_cached_info _bfd_generic_bfd_free_cached_info | |
3303 | ||
3304 | /* Perhaps we need to adjust this one; mmo labels (originally) without a | |
3305 | leading ':' might more appropriately be called local. */ | |
3306 | #define mmo_bfd_is_local_label_name bfd_generic_is_local_label_name | |
d00dd7dc | 3307 | #define mmo_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false |
3c3bdf30 | 3308 | |
60bb06bc L |
3309 | #define mmo_get_symbol_version_string \ |
3310 | _bfd_nosymbols_get_symbol_version_string | |
3311 | ||
3c3bdf30 NC |
3312 | /* Is this one really used or defined by anyone? */ |
3313 | #define mmo_get_lineno _bfd_nosymbols_get_lineno | |
3314 | ||
3315 | /* FIXME: We can do better on this one, if we have a dwarf2 .debug_line | |
3316 | section or if MMO line numbers are implemented. */ | |
3317 | #define mmo_find_nearest_line _bfd_nosymbols_find_nearest_line | |
6e7a29c7 | 3318 | #define mmo_find_nearest_line_with_alt _bfd_nosymbols_find_nearest_line_with_alt |
9c461f7d | 3319 | #define mmo_find_line _bfd_nosymbols_find_line |
4ab527b0 | 3320 | #define mmo_find_inliner_info _bfd_nosymbols_find_inliner_info |
3f3c5c34 | 3321 | #define mmo_make_empty_symbol _bfd_generic_make_empty_symbol |
3c3bdf30 NC |
3322 | #define mmo_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
3323 | #define mmo_read_minisymbols _bfd_generic_read_minisymbols | |
3324 | #define mmo_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol | |
3325 | ||
3c3bdf30 NC |
3326 | #define mmo_bfd_get_relocated_section_contents \ |
3327 | bfd_generic_get_relocated_section_contents | |
3328 | #define mmo_bfd_gc_sections bfd_generic_gc_sections | |
ae17ab41 | 3329 | #define mmo_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
3c3bdf30 NC |
3330 | #define mmo_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
3331 | #define mmo_bfd_link_add_symbols _bfd_generic_link_add_symbols | |
2d653fc7 | 3332 | #define mmo_bfd_link_just_syms _bfd_generic_link_just_syms |
1338dd10 PB |
3333 | #define mmo_bfd_copy_link_hash_symbol_type \ |
3334 | _bfd_generic_copy_link_hash_symbol_type | |
3c3bdf30 NC |
3335 | #define mmo_bfd_final_link _bfd_generic_final_link |
3336 | #define mmo_bfd_link_split_section _bfd_generic_link_split_section | |
4f3b23b3 | 3337 | #define mmo_bfd_link_check_relocs _bfd_generic_link_check_relocs |
3c3bdf30 NC |
3338 | |
3339 | /* Strictly speaking, only MMIX uses this restricted format, but let's not | |
3340 | stop anybody from shooting themselves in the foot. */ | |
3341 | #define mmo_set_arch_mach bfd_default_set_arch_mach | |
3342 | #define mmo_bfd_relax_section bfd_generic_relax_section | |
3343 | #define mmo_bfd_merge_sections bfd_generic_merge_sections | |
72adc230 | 3344 | #define mmo_bfd_is_group_section bfd_generic_is_group_section |
cb7f4b29 | 3345 | #define mmo_bfd_group_name bfd_generic_group_name |
e61463e1 | 3346 | #define mmo_bfd_discard_group bfd_generic_discard_group |
082b7297 L |
3347 | #define mmo_section_already_linked \ |
3348 | _bfd_generic_section_already_linked | |
3023e3f6 | 3349 | #define mmo_bfd_define_common_symbol bfd_generic_define_common_symbol |
34a87bb0 | 3350 | #define mmo_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
7dba9362 | 3351 | #define mmo_bfd_define_start_stop bfd_generic_define_start_stop |
3c3bdf30 | 3352 | |
3c3bdf30 NC |
3353 | /* We want to copy time of creation, otherwise we'd use |
3354 | BFD_JUMP_TABLE_COPY (_bfd_generic). */ | |
3355 | #define mmo_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data | |
3356 | #define mmo_bfd_copy_private_section_data _bfd_generic_bfd_copy_private_section_data | |
3357 | #define mmo_bfd_copy_private_symbol_data _bfd_generic_bfd_copy_private_symbol_data | |
80fccad2 | 3358 | #define mmo_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data |
3c3bdf30 NC |
3359 | #define mmo_bfd_set_private_flags _bfd_generic_bfd_set_private_flags |
3360 | #define mmo_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data | |
433b4f8a | 3361 | #define mmo_init_private_section_data _bfd_generic_init_private_section_data |
3c3bdf30 | 3362 | |
6d00b590 | 3363 | const bfd_target mmix_mmo_vec = |
3c3bdf30 NC |
3364 | { |
3365 | "mmo", /* name */ | |
3366 | bfd_target_mmo_flavour, | |
3367 | BFD_ENDIAN_BIG, /* target byte order */ | |
3368 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
3369 | ||
3370 | /* FIXME: Might need adjustments. */ | |
3371 | (HAS_RELOC | EXEC_P | /* object flags */ | |
3372 | HAS_LINENO | HAS_DEBUG | | |
3373 | HAS_SYMS | HAS_LOCALS | WP_TEXT), | |
3374 | ||
3375 | /* FIXME: Might need adjustments. */ | |
3376 | (SEC_CODE | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | |
3377 | | SEC_READONLY | SEC_EXCLUDE | SEC_DEBUGGING | SEC_IN_MEMORY), | |
3378 | /* section flags */ | |
3379 | 0, /* leading underscore */ | |
3380 | ' ', /* ar_pad_char */ | |
3381 | 16, /* ar_max_namelen */ | |
0aabe54e | 3382 | 0, /* match priority. */ |
d1bcae83 | 3383 | TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ |
3c3bdf30 NC |
3384 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
3385 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3386 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
3387 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
3388 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
3389 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
3390 | ||
3391 | { | |
3392 | _bfd_dummy_target, | |
3393 | mmo_object_p, /* bfd_check_format */ | |
3394 | _bfd_dummy_target, | |
3395 | _bfd_dummy_target, | |
3396 | }, | |
3397 | { | |
d00dd7dc | 3398 | _bfd_bool_bfd_false_error, |
3c3bdf30 | 3399 | mmo_mkobject, |
d00dd7dc AM |
3400 | _bfd_bool_bfd_false_error, |
3401 | _bfd_bool_bfd_false_error, | |
3c3bdf30 NC |
3402 | }, |
3403 | { /* bfd_write_contents */ | |
d00dd7dc | 3404 | _bfd_bool_bfd_false_error, |
3c3bdf30 | 3405 | mmo_write_object_contents, |
d00dd7dc AM |
3406 | _bfd_bool_bfd_false_error, |
3407 | _bfd_bool_bfd_false_error, | |
3c3bdf30 NC |
3408 | }, |
3409 | ||
3410 | BFD_JUMP_TABLE_GENERIC (mmo), | |
3411 | BFD_JUMP_TABLE_COPY (mmo), | |
3412 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
3413 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
3414 | BFD_JUMP_TABLE_SYMBOLS (mmo), | |
72f6ea61 | 3415 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), |
3c3bdf30 NC |
3416 | BFD_JUMP_TABLE_WRITE (mmo), |
3417 | BFD_JUMP_TABLE_LINK (mmo), | |
3418 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
3419 | ||
3420 | NULL, | |
3421 | ||
3422 | NULL | |
3423 | }; |