Mercurial > hg > CbC > CbC_gcc
comparison gcc/mips-tfile.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 3bfb6c00c1e0 |
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1 /* Update the symbol table (the .T file) in a MIPS object to | |
2 contain debugging information specified by the GNU compiler | |
3 in the form of comments (the mips assembler does not support | |
4 assembly access to debug information). | |
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001, | |
6 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 | |
7 Free Software Foundation, Inc. | |
8 Contributed by Michael Meissner (meissner@cygnus.com). | |
9 | |
10 This file is part of GCC. | |
11 | |
12 GCC is free software; you can redistribute it and/or modify it under | |
13 the terms of the GNU General Public License as published by the Free | |
14 Software Foundation; either version 3, or (at your option) any later | |
15 version. | |
16 | |
17 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
18 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 for more details. | |
21 | |
22 You should have received a copy of the GNU General Public License | |
23 along with GCC; see the file COPYING3. If not see | |
24 <http://www.gnu.org/licenses/>. */ | |
25 | |
26 | |
27 /* Here is a brief description of the MIPS ECOFF symbol table. The | |
28 MIPS symbol table has the following pieces: | |
29 | |
30 Symbolic Header | |
31 | | |
32 +-- Auxiliary Symbols | |
33 | | |
34 +-- Dense number table | |
35 | | |
36 +-- Optimizer Symbols | |
37 | | |
38 +-- External Strings | |
39 | | |
40 +-- External Symbols | |
41 | | |
42 +-- Relative file descriptors | |
43 | | |
44 +-- File table | |
45 | | |
46 +-- Procedure table | |
47 | | |
48 +-- Line number table | |
49 | | |
50 +-- Local Strings | |
51 | | |
52 +-- Local Symbols | |
53 | |
54 The symbolic header points to each of the other tables, and also | |
55 contains the number of entries. It also contains a magic number | |
56 and MIPS compiler version number, such as 2.0. | |
57 | |
58 The auxiliary table is a series of 32 bit integers, that are | |
59 referenced as needed from the local symbol table. Unlike standard | |
60 COFF, the aux. information does not follow the symbol that uses | |
61 it, but rather is a separate table. In theory, this would allow | |
62 the MIPS compilers to collapse duplicate aux. entries, but I've not | |
63 noticed this happening with the 1.31 compiler suite. The different | |
64 types of aux. entries are: | |
65 | |
66 1) dnLow: Low bound on array dimension. | |
67 | |
68 2) dnHigh: High bound on array dimension. | |
69 | |
70 3) isym: Index to the local symbol which is the start of the | |
71 function for the end of function first aux. entry. | |
72 | |
73 4) width: Width of structures and bitfields. | |
74 | |
75 5) count: Count of ranges for variant part. | |
76 | |
77 6) rndx: A relative index into the symbol table. The relative | |
78 index field has two parts: rfd which is a pointer into the | |
79 relative file index table or ST_RFDESCAPE which says the next | |
80 aux. entry is the file number, and index: which is the pointer | |
81 into the local symbol within a given file table. This is for | |
82 things like references to types defined in another file. | |
83 | |
84 7) Type information: This is like the COFF type bits, except it | |
85 is 32 bits instead of 16; they still have room to add new | |
86 basic types; and they can handle more than 6 levels of array, | |
87 pointer, function, etc. Each type information field contains | |
88 the following structure members: | |
89 | |
90 a) fBitfield: a bit that says this is a bitfield, and the | |
91 size in bits follows as the next aux. entry. | |
92 | |
93 b) continued: a bit that says the next aux. entry is a | |
94 continuation of the current type information (in case | |
95 there are more than 6 levels of array/ptr/function). | |
96 | |
97 c) bt: an integer containing the base type before adding | |
98 array, pointer, function, etc. qualifiers. The | |
99 current base types that I have documentation for are: | |
100 | |
101 btNil -- undefined | |
102 btAdr -- address - integer same size as ptr | |
103 btChar -- character | |
104 btUChar -- unsigned character | |
105 btShort -- short | |
106 btUShort -- unsigned short | |
107 btInt -- int | |
108 btUInt -- unsigned int | |
109 btLong -- long | |
110 btULong -- unsigned long | |
111 btFloat -- float (real) | |
112 btDouble -- Double (real) | |
113 btStruct -- Structure (Record) | |
114 btUnion -- Union (variant) | |
115 btEnum -- Enumerated | |
116 btTypedef -- defined via a typedef isymRef | |
117 btRange -- subrange of int | |
118 btSet -- pascal sets | |
119 btComplex -- fortran complex | |
120 btDComplex -- fortran double complex | |
121 btIndirect -- forward or unnamed typedef | |
122 btFixedDec -- Fixed Decimal | |
123 btFloatDec -- Float Decimal | |
124 btString -- Varying Length Character String | |
125 btBit -- Aligned Bit String | |
126 btPicture -- Picture | |
127 btVoid -- Void (MIPS cc revision >= 2.00) | |
128 | |
129 d) tq0 - tq5: type qualifier fields as needed. The | |
130 current type qualifier fields I have documentation for | |
131 are: | |
132 | |
133 tqNil -- no more qualifiers | |
134 tqPtr -- pointer | |
135 tqProc -- procedure | |
136 tqArray -- array | |
137 tqFar -- 8086 far pointers | |
138 tqVol -- volatile | |
139 | |
140 | |
141 The dense number table is used in the front ends, and disappears by | |
142 the time the .o is created. | |
143 | |
144 With the 1.31 compiler suite, the optimization symbols don't seem | |
145 to be used as far as I can tell. | |
146 | |
147 The linker is the first entity that creates the relative file | |
148 descriptor table, and I believe it is used so that the individual | |
149 file table pointers don't have to be rewritten when the objects are | |
150 merged together into the program file. | |
151 | |
152 Unlike COFF, the basic symbol & string tables are split into | |
153 external and local symbols/strings. The relocation information | |
154 only goes off of the external symbol table, and the debug | |
155 information only goes off of the internal symbol table. The | |
156 external symbols can have links to an appropriate file index and | |
157 symbol within the file to give it the appropriate type information. | |
158 Because of this, the external symbols are actually larger than the | |
159 internal symbols (to contain the link information), and contain the | |
160 local symbol structure as a member, though this member is not the | |
161 first member of the external symbol structure (!). I suspect this | |
162 split is to make strip easier to deal with. | |
163 | |
164 Each file table has offsets for where the line numbers, local | |
165 strings, local symbols, and procedure table starts from within the | |
166 global tables, and the indices are reset to 0 for each of those | |
167 tables for the file. | |
168 | |
169 The procedure table contains the binary equivalents of the .ent | |
170 (start of the function address), .frame (what register is the | |
171 virtual frame pointer, constant offset from the register to obtain | |
172 the VFP, and what register holds the return address), .mask/.fmask | |
173 (bitmask of saved registers, and where the first register is stored | |
174 relative to the VFP) assembler directives. It also contains the | |
175 low and high bounds of the line numbers if debugging is turned on. | |
176 | |
177 The line number table is a compressed form of the normal COFF line | |
178 table. Each line number entry is either 1 or 3 bytes long, and | |
179 contains a signed delta from the previous line, and an unsigned | |
180 count of the number of instructions this statement takes. | |
181 | |
182 The local symbol table contains the following fields: | |
183 | |
184 1) iss: index to the local string table giving the name of the | |
185 symbol. | |
186 | |
187 2) value: value of the symbol (address, register number, etc.). | |
188 | |
189 3) st: symbol type. The current symbol types are: | |
190 | |
191 stNil -- Nuthin' special | |
192 stGlobal -- external symbol | |
193 stStatic -- static | |
194 stParam -- procedure argument | |
195 stLocal -- local variable | |
196 stLabel -- label | |
197 stProc -- External Procedure | |
198 stBlock -- beginning of block | |
199 stEnd -- end (of anything) | |
200 stMember -- member (of anything) | |
201 stTypedef -- type definition | |
202 stFile -- file name | |
203 stRegReloc -- register relocation | |
204 stForward -- forwarding address | |
205 stStaticProc -- Static procedure | |
206 stConstant -- const | |
207 | |
208 4) sc: storage class. The current storage classes are: | |
209 | |
210 scText -- text symbol | |
211 scData -- initialized data symbol | |
212 scBss -- un-initialized data symbol | |
213 scRegister -- value of symbol is register number | |
214 scAbs -- value of symbol is absolute | |
215 scUndefined -- who knows? | |
216 scCdbLocal -- variable's value is IN se->va.?? | |
217 scBits -- this is a bit field | |
218 scCdbSystem -- value is IN debugger's address space | |
219 scRegImage -- register value saved on stack | |
220 scInfo -- symbol contains debugger information | |
221 scUserStruct -- addr in struct user for current process | |
222 scSData -- load time only small data | |
223 scSBss -- load time only small common | |
224 scRData -- load time only read only data | |
225 scVar -- Var parameter (fortranpascal) | |
226 scCommon -- common variable | |
227 scSCommon -- small common | |
228 scVarRegister -- Var parameter in a register | |
229 scVariant -- Variant record | |
230 scSUndefined -- small undefined(external) data | |
231 scInit -- .init section symbol | |
232 | |
233 5) index: pointer to a local symbol or aux. entry. | |
234 | |
235 | |
236 | |
237 For the following program: | |
238 | |
239 #include <stdio.h> | |
240 | |
241 main(){ | |
242 printf("Hello World!\n"); | |
243 return 0; | |
244 } | |
245 | |
246 Mips-tdump produces the following information: | |
247 | |
248 Global file header: | |
249 magic number 0x162 | |
250 # sections 2 | |
251 timestamp 645311799, Wed Jun 13 17:16:39 1990 | |
252 symbolic header offset 284 | |
253 symbolic header size 96 | |
254 optional header 56 | |
255 flags 0x0 | |
256 | |
257 Symbolic header, magic number = 0x7009, vstamp = 1.31: | |
258 | |
259 Info Offset Number Bytes | |
260 ==== ====== ====== ===== | |
261 | |
262 Line numbers 380 4 4 [13] | |
263 Dense numbers 0 0 0 | |
264 Procedures Tables 384 1 52 | |
265 Local Symbols 436 16 192 | |
266 Optimization Symbols 0 0 0 | |
267 Auxiliary Symbols 628 39 156 | |
268 Local Strings 784 80 80 | |
269 External Strings 864 144 144 | |
270 File Tables 1008 2 144 | |
271 Relative Files 0 0 0 | |
272 External Symbols 1152 20 320 | |
273 | |
274 File #0, "hello2.c" | |
275 | |
276 Name index = 1 Readin = No | |
277 Merge = No Endian = LITTLE | |
278 Debug level = G2 Language = C | |
279 Adr = 0x00000000 | |
280 | |
281 Info Start Number Size Offset | |
282 ==== ===== ====== ==== ====== | |
283 Local strings 0 15 15 784 | |
284 Local symbols 0 6 72 436 | |
285 Line numbers 0 13 13 380 | |
286 Optimization symbols 0 0 0 0 | |
287 Procedures 0 1 52 384 | |
288 Auxiliary symbols 0 14 56 628 | |
289 Relative Files 0 0 0 0 | |
290 | |
291 There are 6 local symbols, starting at 436 | |
292 | |
293 Symbol# 0: "hello2.c" | |
294 End+1 symbol = 6 | |
295 String index = 1 | |
296 Storage class = Text Index = 6 | |
297 Symbol type = File Value = 0 | |
298 | |
299 Symbol# 1: "main" | |
300 End+1 symbol = 5 | |
301 Type = int | |
302 String index = 10 | |
303 Storage class = Text Index = 12 | |
304 Symbol type = Proc Value = 0 | |
305 | |
306 Symbol# 2: "" | |
307 End+1 symbol = 4 | |
308 String index = 0 | |
309 Storage class = Text Index = 4 | |
310 Symbol type = Block Value = 8 | |
311 | |
312 Symbol# 3: "" | |
313 First symbol = 2 | |
314 String index = 0 | |
315 Storage class = Text Index = 2 | |
316 Symbol type = End Value = 28 | |
317 | |
318 Symbol# 4: "main" | |
319 First symbol = 1 | |
320 String index = 10 | |
321 Storage class = Text Index = 1 | |
322 Symbol type = End Value = 52 | |
323 | |
324 Symbol# 5: "hello2.c" | |
325 First symbol = 0 | |
326 String index = 1 | |
327 Storage class = Text Index = 0 | |
328 Symbol type = End Value = 0 | |
329 | |
330 There are 14 auxiliary table entries, starting at 628. | |
331 | |
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] | |
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] | |
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] | |
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] | |
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] | |
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] | |
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] | |
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] | |
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] | |
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] | |
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
346 | |
347 There are 1 procedure descriptor entries, starting at 0. | |
348 | |
349 Procedure descriptor 0: | |
350 Name index = 10 Name = "main" | |
351 .mask 0x80000000,-4 .fmask 0x00000000,0 | |
352 .frame $29,24,$31 | |
353 Opt. start = -1 Symbols start = 1 | |
354 First line # = 3 Last line # = 6 | |
355 Line Offset = 0 Address = 0x00000000 | |
356 | |
357 There are 4 bytes holding line numbers, starting at 380. | |
358 Line 3, delta 0, count 2 | |
359 Line 4, delta 1, count 3 | |
360 Line 5, delta 1, count 2 | |
361 Line 6, delta 1, count 6 | |
362 | |
363 File #1, "/usr/include/stdio.h" | |
364 | |
365 Name index = 1 Readin = No | |
366 Merge = Yes Endian = LITTLE | |
367 Debug level = G2 Language = C | |
368 Adr = 0x00000000 | |
369 | |
370 Info Start Number Size Offset | |
371 ==== ===== ====== ==== ====== | |
372 Local strings 15 65 65 799 | |
373 Local symbols 6 10 120 508 | |
374 Line numbers 0 0 0 380 | |
375 Optimization symbols 0 0 0 0 | |
376 Procedures 1 0 0 436 | |
377 Auxiliary symbols 14 25 100 684 | |
378 Relative Files 0 0 0 0 | |
379 | |
380 There are 10 local symbols, starting at 442 | |
381 | |
382 Symbol# 0: "/usr/include/stdio.h" | |
383 End+1 symbol = 10 | |
384 String index = 1 | |
385 Storage class = Text Index = 10 | |
386 Symbol type = File Value = 0 | |
387 | |
388 Symbol# 1: "_iobuf" | |
389 End+1 symbol = 9 | |
390 String index = 22 | |
391 Storage class = Info Index = 9 | |
392 Symbol type = Block Value = 20 | |
393 | |
394 Symbol# 2: "_cnt" | |
395 Type = int | |
396 String index = 29 | |
397 Storage class = Info Index = 4 | |
398 Symbol type = Member Value = 0 | |
399 | |
400 Symbol# 3: "_ptr" | |
401 Type = ptr to char | |
402 String index = 34 | |
403 Storage class = Info Index = 15 | |
404 Symbol type = Member Value = 32 | |
405 | |
406 Symbol# 4: "_base" | |
407 Type = ptr to char | |
408 String index = 39 | |
409 Storage class = Info Index = 16 | |
410 Symbol type = Member Value = 64 | |
411 | |
412 Symbol# 5: "_bufsiz" | |
413 Type = int | |
414 String index = 45 | |
415 Storage class = Info Index = 4 | |
416 Symbol type = Member Value = 96 | |
417 | |
418 Symbol# 6: "_flag" | |
419 Type = short | |
420 String index = 53 | |
421 Storage class = Info Index = 3 | |
422 Symbol type = Member Value = 128 | |
423 | |
424 Symbol# 7: "_file" | |
425 Type = char | |
426 String index = 59 | |
427 Storage class = Info Index = 2 | |
428 Symbol type = Member Value = 144 | |
429 | |
430 Symbol# 8: "" | |
431 First symbol = 1 | |
432 String index = 0 | |
433 Storage class = Info Index = 1 | |
434 Symbol type = End Value = 0 | |
435 | |
436 Symbol# 9: "/usr/include/stdio.h" | |
437 First symbol = 0 | |
438 String index = 1 | |
439 Storage class = Text Index = 0 | |
440 Symbol type = End Value = 0 | |
441 | |
442 There are 25 auxiliary table entries, starting at 642. | |
443 | |
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] | |
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] | |
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] | |
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] | |
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] | |
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] | |
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] | |
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] | |
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] | |
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] | |
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
469 | |
470 There are 0 procedure descriptor entries, starting at 1. | |
471 | |
472 There are 20 external symbols, starting at 1152 | |
473 | |
474 Symbol# 0: "_iob" | |
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } | |
476 String index = 0 Ifd = 1 | |
477 Storage class = Nil Index = 17 | |
478 Symbol type = Global Value = 60 | |
479 | |
480 Symbol# 1: "fopen" | |
481 String index = 5 Ifd = 1 | |
482 Storage class = Nil Index = 1048575 | |
483 Symbol type = Proc Value = 0 | |
484 | |
485 Symbol# 2: "fdopen" | |
486 String index = 11 Ifd = 1 | |
487 Storage class = Nil Index = 1048575 | |
488 Symbol type = Proc Value = 0 | |
489 | |
490 Symbol# 3: "freopen" | |
491 String index = 18 Ifd = 1 | |
492 Storage class = Nil Index = 1048575 | |
493 Symbol type = Proc Value = 0 | |
494 | |
495 Symbol# 4: "popen" | |
496 String index = 26 Ifd = 1 | |
497 Storage class = Nil Index = 1048575 | |
498 Symbol type = Proc Value = 0 | |
499 | |
500 Symbol# 5: "tmpfile" | |
501 String index = 32 Ifd = 1 | |
502 Storage class = Nil Index = 1048575 | |
503 Symbol type = Proc Value = 0 | |
504 | |
505 Symbol# 6: "ftell" | |
506 String index = 40 Ifd = 1 | |
507 Storage class = Nil Index = 1048575 | |
508 Symbol type = Proc Value = 0 | |
509 | |
510 Symbol# 7: "rewind" | |
511 String index = 46 Ifd = 1 | |
512 Storage class = Nil Index = 1048575 | |
513 Symbol type = Proc Value = 0 | |
514 | |
515 Symbol# 8: "setbuf" | |
516 String index = 53 Ifd = 1 | |
517 Storage class = Nil Index = 1048575 | |
518 Symbol type = Proc Value = 0 | |
519 | |
520 Symbol# 9: "setbuffer" | |
521 String index = 60 Ifd = 1 | |
522 Storage class = Nil Index = 1048575 | |
523 Symbol type = Proc Value = 0 | |
524 | |
525 Symbol# 10: "setlinebuf" | |
526 String index = 70 Ifd = 1 | |
527 Storage class = Nil Index = 1048575 | |
528 Symbol type = Proc Value = 0 | |
529 | |
530 Symbol# 11: "fgets" | |
531 String index = 81 Ifd = 1 | |
532 Storage class = Nil Index = 1048575 | |
533 Symbol type = Proc Value = 0 | |
534 | |
535 Symbol# 12: "gets" | |
536 String index = 87 Ifd = 1 | |
537 Storage class = Nil Index = 1048575 | |
538 Symbol type = Proc Value = 0 | |
539 | |
540 Symbol# 13: "ctermid" | |
541 String index = 92 Ifd = 1 | |
542 Storage class = Nil Index = 1048575 | |
543 Symbol type = Proc Value = 0 | |
544 | |
545 Symbol# 14: "cuserid" | |
546 String index = 100 Ifd = 1 | |
547 Storage class = Nil Index = 1048575 | |
548 Symbol type = Proc Value = 0 | |
549 | |
550 Symbol# 15: "tempnam" | |
551 String index = 108 Ifd = 1 | |
552 Storage class = Nil Index = 1048575 | |
553 Symbol type = Proc Value = 0 | |
554 | |
555 Symbol# 16: "tmpnam" | |
556 String index = 116 Ifd = 1 | |
557 Storage class = Nil Index = 1048575 | |
558 Symbol type = Proc Value = 0 | |
559 | |
560 Symbol# 17: "sprintf" | |
561 String index = 123 Ifd = 1 | |
562 Storage class = Nil Index = 1048575 | |
563 Symbol type = Proc Value = 0 | |
564 | |
565 Symbol# 18: "main" | |
566 Type = int | |
567 String index = 131 Ifd = 0 | |
568 Storage class = Text Index = 1 | |
569 Symbol type = Proc Value = 0 | |
570 | |
571 Symbol# 19: "printf" | |
572 String index = 136 Ifd = 0 | |
573 Storage class = Undefined Index = 1048575 | |
574 Symbol type = Proc Value = 0 | |
575 | |
576 The following auxiliary table entries were unused: | |
577 | |
578 #0 0 0x00000000 void | |
579 #2 8 0x00000008 char | |
580 #3 16 0x00000010 short | |
581 #4 24 0x00000018 int | |
582 #5 32 0x00000020 long | |
583 #6 40 0x00000028 float | |
584 #7 44 0x0000002c double | |
585 #8 12 0x0000000c unsigned char | |
586 #9 20 0x00000014 unsigned short | |
587 #10 28 0x0000001c unsigned int | |
588 #11 36 0x00000024 unsigned long | |
589 #14 0 0x00000000 void | |
590 #15 24 0x00000018 int | |
591 #19 32 0x00000020 long | |
592 #20 40 0x00000028 float | |
593 #21 44 0x0000002c double | |
594 #22 12 0x0000000c unsigned char | |
595 #23 20 0x00000014 unsigned short | |
596 #24 28 0x0000001c unsigned int | |
597 #25 36 0x00000024 unsigned long | |
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } | |
599 | |
600 */ | |
601 | |
602 | |
603 #include "config.h" | |
604 #include "system.h" | |
605 #include "coretypes.h" | |
606 #include "tm.h" | |
607 #include "version.h" | |
608 #include "intl.h" | |
609 | |
610 #ifndef __SABER__ | |
611 #define saber_stop() | |
612 #endif | |
613 | |
614 /* Include getopt.h for the sake of getopt_long. */ | |
615 #include "getopt.h" | |
616 | |
617 #ifndef __LINE__ | |
618 #define __LINE__ 0 | |
619 #endif | |
620 | |
621 /* Due to size_t being defined in sys/types.h and different | |
622 in stddef.h, we have to do this by hand..... Note, these | |
623 types are correct for MIPS based systems, and may not be | |
624 correct for other systems. Ultrix 4.0 and Silicon Graphics | |
625 have this fixed, but since the following is correct, and | |
626 the fact that including stddef.h gets you GCC's version | |
627 instead of the standard one it's not worth it to fix it. */ | |
628 | |
629 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__) | |
630 #define Size_t long unsigned int | |
631 #else | |
632 #define Size_t unsigned int | |
633 #endif | |
634 #define Ptrdiff_t long | |
635 | |
636 /* The following might be called from obstack or malloc, | |
637 so they can't be static. */ | |
638 | |
639 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN; | |
640 extern void botch (const char *) ATTRIBUTE_NORETURN; | |
641 | |
642 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; | |
643 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1; | |
644 | |
645 #ifndef MIPS_DEBUGGING_INFO | |
646 | |
647 static int line_number; | |
648 static int cur_line_start; | |
649 static int debug; | |
650 static int had_errors; | |
651 static const char *progname; | |
652 static const char *input_name; | |
653 | |
654 int | |
655 main (void) | |
656 { | |
657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n"); | |
658 exit (1); | |
659 } | |
660 | |
661 #else /* MIPS_DEBUGGING defined */ | |
662 | |
663 /* The local and global symbols have a field index, so undo any defines | |
664 of index -> strchr. */ | |
665 | |
666 #undef index | |
667 | |
668 #include <signal.h> | |
669 | |
670 #ifndef CROSS_DIRECTORY_STRUCTURE | |
671 #include <a.out.h> | |
672 #else | |
673 #include "mips/a.out.h" | |
674 #endif /* CROSS_DIRECTORY_STRUCTURE */ | |
675 | |
676 #include "gstab.h" | |
677 | |
678 #define STAB_CODE_TYPE enum __stab_debug_code | |
679 | |
680 #ifndef MALLOC_CHECK | |
681 #ifdef __SABER__ | |
682 #define MALLOC_CHECK | |
683 #endif | |
684 #endif | |
685 | |
686 #define IS_ASM_IDENT(ch) \ | |
687 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$') | |
688 | |
689 | |
690 /* Redefinition of storage classes as an enumeration for better | |
691 debugging. */ | |
692 | |
693 typedef enum sc { | |
694 sc_Nil = scNil, /* no storage class */ | |
695 sc_Text = scText, /* text symbol */ | |
696 sc_Data = scData, /* initialized data symbol */ | |
697 sc_Bss = scBss, /* un-initialized data symbol */ | |
698 sc_Register = scRegister, /* value of symbol is register number */ | |
699 sc_Abs = scAbs, /* value of symbol is absolute */ | |
700 sc_Undefined = scUndefined, /* who knows? */ | |
701 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ | |
702 sc_Bits = scBits, /* this is a bit field */ | |
703 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ | |
704 sc_RegImage = scRegImage, /* register value saved on stack */ | |
705 sc_Info = scInfo, /* symbol contains debugger information */ | |
706 sc_UserStruct = scUserStruct, /* addr in struct user for current process */ | |
707 sc_SData = scSData, /* load time only small data */ | |
708 sc_SBss = scSBss, /* load time only small common */ | |
709 sc_RData = scRData, /* load time only read only data */ | |
710 sc_Var = scVar, /* Var parameter (fortran,pascal) */ | |
711 sc_Common = scCommon, /* common variable */ | |
712 sc_SCommon = scSCommon, /* small common */ | |
713 sc_VarRegister = scVarRegister, /* Var parameter in a register */ | |
714 sc_Variant = scVariant, /* Variant record */ | |
715 sc_SUndefined = scSUndefined, /* small undefined(external) data */ | |
716 sc_Init = scInit, /* .init section symbol */ | |
717 sc_Max = scMax /* Max storage class+1 */ | |
718 } sc_t; | |
719 | |
720 /* Redefinition of symbol type. */ | |
721 | |
722 typedef enum st { | |
723 st_Nil = stNil, /* Nuthin' special */ | |
724 st_Global = stGlobal, /* external symbol */ | |
725 st_Static = stStatic, /* static */ | |
726 st_Param = stParam, /* procedure argument */ | |
727 st_Local = stLocal, /* local variable */ | |
728 st_Label = stLabel, /* label */ | |
729 st_Proc = stProc, /* " " Procedure */ | |
730 st_Block = stBlock, /* beginning of block */ | |
731 st_End = stEnd, /* end (of anything) */ | |
732 st_Member = stMember, /* member (of anything - struct/union/enum */ | |
733 st_Typedef = stTypedef, /* type definition */ | |
734 st_File = stFile, /* file name */ | |
735 st_RegReloc = stRegReloc, /* register relocation */ | |
736 st_Forward = stForward, /* forwarding address */ | |
737 st_StaticProc = stStaticProc, /* load time only static procs */ | |
738 st_Constant = stConstant, /* const */ | |
739 st_Str = stStr, /* string */ | |
740 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */ | |
741 st_Expr = stExpr, /* 2+2 vs. 4 */ | |
742 st_Type = stType, /* post-coercion SER */ | |
743 st_Max = stMax /* max type+1 */ | |
744 } st_t; | |
745 | |
746 /* Redefinition of type qualifiers. */ | |
747 | |
748 typedef enum tq { | |
749 tq_Nil = tqNil, /* bt is what you see */ | |
750 tq_Ptr = tqPtr, /* pointer */ | |
751 tq_Proc = tqProc, /* procedure */ | |
752 tq_Array = tqArray, /* duh */ | |
753 tq_Far = tqFar, /* longer addressing - 8086/8 land */ | |
754 tq_Vol = tqVol, /* volatile */ | |
755 tq_Max = tqMax /* Max type qualifier+1 */ | |
756 } tq_t; | |
757 | |
758 /* Redefinition of basic types. */ | |
759 | |
760 typedef enum bt { | |
761 bt_Nil = btNil, /* undefined */ | |
762 bt_Adr = btAdr, /* address - integer same size as pointer */ | |
763 bt_Char = btChar, /* character */ | |
764 bt_UChar = btUChar, /* unsigned character */ | |
765 bt_Short = btShort, /* short */ | |
766 bt_UShort = btUShort, /* unsigned short */ | |
767 bt_Int = btInt, /* int */ | |
768 bt_UInt = btUInt, /* unsigned int */ | |
769 bt_Long = btLong, /* long */ | |
770 bt_ULong = btULong, /* unsigned long */ | |
771 bt_Float = btFloat, /* float (real) */ | |
772 bt_Double = btDouble, /* Double (real) */ | |
773 bt_Struct = btStruct, /* Structure (Record) */ | |
774 bt_Union = btUnion, /* Union (variant) */ | |
775 bt_Enum = btEnum, /* Enumerated */ | |
776 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ | |
777 bt_Range = btRange, /* subrange of int */ | |
778 bt_Set = btSet, /* pascal sets */ | |
779 bt_Complex = btComplex, /* fortran complex */ | |
780 bt_DComplex = btDComplex, /* fortran double complex */ | |
781 bt_Indirect = btIndirect, /* forward or unnamed typedef */ | |
782 bt_FixedDec = btFixedDec, /* Fixed Decimal */ | |
783 bt_FloatDec = btFloatDec, /* Float Decimal */ | |
784 bt_String = btString, /* Varying Length Character String */ | |
785 bt_Bit = btBit, /* Aligned Bit String */ | |
786 bt_Picture = btPicture, /* Picture */ | |
787 | |
788 #ifdef btVoid | |
789 bt_Void = btVoid, /* Void */ | |
790 #else | |
791 #define bt_Void bt_Nil | |
792 #endif | |
793 | |
794 bt_Max = btMax /* Max basic type+1 */ | |
795 } bt_t; | |
796 | |
797 | |
798 | |
799 /* Basic COFF storage classes. */ | |
800 enum coff_storage { | |
801 C_EFCN = -1, | |
802 C_NULL = 0, | |
803 C_AUTO = 1, | |
804 C_EXT = 2, | |
805 C_STAT = 3, | |
806 C_REG = 4, | |
807 C_EXTDEF = 5, | |
808 C_LABEL = 6, | |
809 C_ULABEL = 7, | |
810 C_MOS = 8, | |
811 C_ARG = 9, | |
812 C_STRTAG = 10, | |
813 C_MOU = 11, | |
814 C_UNTAG = 12, | |
815 C_TPDEF = 13, | |
816 C_USTATIC = 14, | |
817 C_ENTAG = 15, | |
818 C_MOE = 16, | |
819 C_REGPARM = 17, | |
820 C_FIELD = 18, | |
821 C_BLOCK = 100, | |
822 C_FCN = 101, | |
823 C_EOS = 102, | |
824 C_FILE = 103, | |
825 C_LINE = 104, | |
826 C_ALIAS = 105, | |
827 C_HIDDEN = 106, | |
828 C_MAX = 107 | |
829 } coff_storage_t; | |
830 | |
831 /* Regular COFF fundamental type. */ | |
832 typedef enum coff_type { | |
833 T_NULL = 0, | |
834 T_ARG = 1, | |
835 T_CHAR = 2, | |
836 T_SHORT = 3, | |
837 T_INT = 4, | |
838 T_LONG = 5, | |
839 T_FLOAT = 6, | |
840 T_DOUBLE = 7, | |
841 T_STRUCT = 8, | |
842 T_UNION = 9, | |
843 T_ENUM = 10, | |
844 T_MOE = 11, | |
845 T_UCHAR = 12, | |
846 T_USHORT = 13, | |
847 T_UINT = 14, | |
848 T_ULONG = 15, | |
849 T_MAX = 16 | |
850 } coff_type_t; | |
851 | |
852 /* Regular COFF derived types. */ | |
853 typedef enum coff_dt { | |
854 DT_NON = 0, | |
855 DT_PTR = 1, | |
856 DT_FCN = 2, | |
857 DT_ARY = 3, | |
858 DT_MAX = 4 | |
859 } coff_dt_t; | |
860 | |
861 #define N_BTMASK 017 /* bitmask to isolate basic type */ | |
862 #define N_TMASK 003 /* bitmask to isolate derived type */ | |
863 #define N_BT_SHIFT 4 /* # bits to shift past basic type */ | |
864 #define N_TQ_SHIFT 2 /* # bits to shift derived types */ | |
865 #define N_TQ 6 /* # of type qualifiers */ | |
866 | |
867 /* States for whether to hash type or not. */ | |
868 typedef enum hash_state { | |
869 hash_no = 0, /* don't hash type */ | |
870 hash_yes = 1, /* ok to hash type, or use previous hash */ | |
871 hash_record = 2 /* ok to record hash, but don't use prev. */ | |
872 } hash_state_t; | |
873 | |
874 | |
875 /* Types of different sized allocation requests. */ | |
876 enum alloc_type { | |
877 alloc_type_none, /* dummy value */ | |
878 alloc_type_scope, /* nested scopes linked list */ | |
879 alloc_type_vlinks, /* glue linking pages in varray */ | |
880 alloc_type_shash, /* string hash element */ | |
881 alloc_type_thash, /* type hash element */ | |
882 alloc_type_tag, /* struct/union/tag element */ | |
883 alloc_type_forward, /* element to hold unknown tag */ | |
884 alloc_type_thead, /* head of type hash list */ | |
885 alloc_type_varray, /* general varray allocation */ | |
886 alloc_type_last /* last+1 element for array bounds */ | |
887 }; | |
888 | |
889 | |
890 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1)) | |
891 #define DWORD_ALIGN(x) (((x) + 7) & ~7) | |
892 | |
893 | |
894 /* Structures to provide n-number of virtual arrays, each of which can | |
895 grow linearly, and which are written in the object file as sequential | |
896 pages. On systems with a BSD malloc that define USE_MALLOC, the | |
897 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc | |
898 adds its overhead, and rounds up to the next power of 2. Pages are | |
899 linked together via a linked list. */ | |
900 | |
901 #ifndef PAGE_SIZE | |
902 #define PAGE_SIZE 32768 /* size of varray pages */ | |
903 #endif | |
904 | |
905 #define PAGE_USIZE ((Size_t) PAGE_SIZE) | |
906 | |
907 | |
908 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ | |
909 #ifndef USE_MALLOC /* in one memory request */ | |
910 #define MAX_CLUSTER_PAGES 64 | |
911 #else | |
912 #define MAX_CLUSTER_PAGES 63 | |
913 #endif | |
914 #endif | |
915 | |
916 | |
917 /* Linked list connecting separate page allocations. */ | |
918 typedef struct vlinks { | |
919 struct vlinks *prev; /* previous set of pages */ | |
920 struct vlinks *next; /* next set of pages */ | |
921 union page *datum; /* start of page */ | |
922 unsigned long start_index; /* starting index # of page */ | |
923 } vlinks_t; | |
924 | |
925 | |
926 /* Virtual array header. */ | |
927 typedef struct varray { | |
928 vlinks_t *first; /* first page link */ | |
929 vlinks_t *last; /* last page link */ | |
930 unsigned long num_allocated; /* # objects allocated */ | |
931 unsigned short object_size; /* size in bytes of each object */ | |
932 unsigned short objects_per_page; /* # objects that can fit on a page */ | |
933 unsigned short objects_last_page; /* # objects allocated on last page */ | |
934 } varray_t; | |
935 | |
936 #ifndef MALLOC_CHECK | |
937 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) | |
938 #else | |
939 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) | |
940 #endif | |
941 | |
942 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \ | |
943 (vlinks_t *) 0, /* first */ \ | |
944 (vlinks_t *) 0, /* last */ \ | |
945 0, /* num_allocated */ \ | |
946 sizeof (type), /* object_size */ \ | |
947 OBJECTS_PER_PAGE (type), /* objects_per_page */ \ | |
948 OBJECTS_PER_PAGE (type), /* objects_last_page */ \ | |
949 } | |
950 | |
951 #define INITIALIZE_VARRAY(x,type) \ | |
952 do { \ | |
953 (x)->object_size = sizeof (type); \ | |
954 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \ | |
955 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \ | |
956 } while (0) | |
957 | |
958 /* Master type for indexes within the symbol table. */ | |
959 typedef unsigned long symint_t; | |
960 | |
961 | |
962 /* Linked list support for nested scopes (file, block, structure, etc.). */ | |
963 typedef struct scope { | |
964 struct scope *prev; /* previous scope level */ | |
965 struct scope *free; /* free list pointer */ | |
966 SYMR *lsym; /* pointer to local symbol node */ | |
967 symint_t lnumber; /* lsym index */ | |
968 st_t type; /* type of the node */ | |
969 } scope_t; | |
970 | |
971 | |
972 /* Forward reference list for tags referenced, but not yet defined. */ | |
973 typedef struct forward { | |
974 struct forward *next; /* next forward reference */ | |
975 struct forward *free; /* free list pointer */ | |
976 AUXU *ifd_ptr; /* pointer to store file index */ | |
977 AUXU *index_ptr; /* pointer to store symbol index */ | |
978 AUXU *type_ptr; /* pointer to munge type info */ | |
979 } forward_t; | |
980 | |
981 | |
982 /* Linked list support for tags. The first tag in the list is always | |
983 the current tag for that block. */ | |
984 typedef struct tag { | |
985 struct tag *free; /* free list pointer */ | |
986 struct shash *hash_ptr; /* pointer to the hash table head */ | |
987 struct tag *same_name; /* tag with same name in outer scope */ | |
988 struct tag *same_block; /* next tag defined in the same block. */ | |
989 struct forward *forward_ref; /* list of forward references */ | |
990 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ | |
991 symint_t ifd; /* file # tag defined in */ | |
992 symint_t indx; /* index within file's local symbols */ | |
993 } tag_t; | |
994 | |
995 | |
996 /* Head of a block's linked list of tags. */ | |
997 typedef struct thead { | |
998 struct thead *prev; /* previous block */ | |
999 struct thead *free; /* free list pointer */ | |
1000 struct tag *first_tag; /* first tag in block defined */ | |
1001 } thead_t; | |
1002 | |
1003 | |
1004 /* Union containing pointers to each the small structures which are freed up. */ | |
1005 typedef union small_free { | |
1006 scope_t *f_scope; /* scope structure */ | |
1007 thead_t *f_thead; /* tag head structure */ | |
1008 tag_t *f_tag; /* tag element structure */ | |
1009 forward_t *f_forward; /* forward tag reference */ | |
1010 } small_free_t; | |
1011 | |
1012 | |
1013 /* String hash table support. The size of the hash table must fit | |
1014 within a page. */ | |
1015 | |
1016 #ifndef SHASH_SIZE | |
1017 #define SHASH_SIZE 1009 | |
1018 #endif | |
1019 | |
1020 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */ | |
1021 | |
1022 typedef struct shash { | |
1023 struct shash *next; /* next hash value */ | |
1024 char *string; /* string we are hashing */ | |
1025 symint_t len; /* string length */ | |
1026 symint_t indx; /* index within string table */ | |
1027 EXTR *esym_ptr; /* global symbol pointer */ | |
1028 SYMR *sym_ptr; /* local symbol pointer */ | |
1029 SYMR *end_ptr; /* symbol pointer to end block */ | |
1030 tag_t *tag_ptr; /* tag pointer */ | |
1031 PDR *proc_ptr; /* procedure descriptor pointer */ | |
1032 } shash_t; | |
1033 | |
1034 | |
1035 /* Type hash table support. The size of the hash table must fit | |
1036 within a page with the other extended file descriptor information. | |
1037 Because unique types which are hashed are fewer in number than | |
1038 strings, we use a smaller hash value. */ | |
1039 | |
1040 #ifndef THASH_SIZE | |
1041 #define THASH_SIZE 113 | |
1042 #endif | |
1043 | |
1044 typedef struct thash { | |
1045 struct thash *next; /* next hash value */ | |
1046 AUXU type; /* type we are hashing */ | |
1047 symint_t indx; /* index within string table */ | |
1048 } thash_t; | |
1049 | |
1050 | |
1051 /* Extended file descriptor that contains all of the support necessary | |
1052 to add things to each file separately. */ | |
1053 typedef struct efdr { | |
1054 FDR fdr; /* File header to be written out */ | |
1055 FDR *orig_fdr; /* original file header */ | |
1056 char *name; /* filename */ | |
1057 int name_len; /* length of the filename */ | |
1058 symint_t void_type; /* aux. pointer to 'void' type */ | |
1059 symint_t int_type; /* aux. pointer to 'int' type */ | |
1060 scope_t *cur_scope; /* current nested scopes */ | |
1061 symint_t file_index; /* current file number */ | |
1062 int nested_scopes; /* # nested scopes */ | |
1063 varray_t strings; /* local strings */ | |
1064 varray_t symbols; /* local symbols */ | |
1065 varray_t procs; /* procedures */ | |
1066 varray_t aux_syms; /* auxiliary symbols */ | |
1067 struct efdr *next_file; /* next file descriptor */ | |
1068 /* string/type hash tables */ | |
1069 shash_t **shash_head; /* string hash table */ | |
1070 thash_t *thash_head[THASH_SIZE]; | |
1071 } efdr_t; | |
1072 | |
1073 /* Pre-initialized extended file structure. */ | |
1074 static int init_file_initialized = 0; | |
1075 static efdr_t init_file; | |
1076 | |
1077 static efdr_t *first_file; /* first file descriptor */ | |
1078 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ | |
1079 | |
1080 | |
1081 /* Union of various things that are held in pages. */ | |
1082 typedef union page { | |
1083 char byte [ PAGE_SIZE ]; | |
1084 unsigned char ubyte [ PAGE_SIZE ]; | |
1085 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; | |
1086 FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; | |
1087 PDR proc [ PAGE_SIZE / sizeof (PDR) ]; | |
1088 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ]; | |
1089 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ]; | |
1090 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ]; | |
1091 DNR dense [ PAGE_SIZE / sizeof (DNR) ]; | |
1092 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; | |
1093 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; | |
1094 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; | |
1095 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; | |
1096 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; | |
1097 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; | |
1098 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; | |
1099 } page_t; | |
1100 | |
1101 | |
1102 /* Structure holding allocation information for small sized structures. */ | |
1103 typedef struct alloc_info { | |
1104 const char *alloc_name; /* name of this allocation type (must be first) */ | |
1105 page_t *cur_page; /* current page being allocated from */ | |
1106 small_free_t free_list; /* current free list if any */ | |
1107 int unallocated; /* number of elements unallocated on page */ | |
1108 int total_alloc; /* total number of allocations */ | |
1109 int total_free; /* total number of frees */ | |
1110 int total_pages; /* total number of pages allocated */ | |
1111 } alloc_info_t; | |
1112 | |
1113 /* Type information collected together. */ | |
1114 typedef struct type_info { | |
1115 bt_t basic_type; /* basic type */ | |
1116 coff_type_t orig_type; /* original COFF-based type */ | |
1117 int num_tq; /* # type qualifiers */ | |
1118 int num_dims; /* # dimensions */ | |
1119 int num_sizes; /* # sizes */ | |
1120 int extra_sizes; /* # extra sizes not tied with dims */ | |
1121 tag_t * tag_ptr; /* tag pointer */ | |
1122 int bitfield; /* symbol is a bitfield */ | |
1123 int unknown_tag; /* this is an unknown tag */ | |
1124 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ | |
1125 symint_t dimensions [N_TQ]; /* dimensions for each array */ | |
1126 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of | |
1127 struct/union/enum + bitfield size */ | |
1128 } type_info_t; | |
1129 | |
1130 /* Pre-initialized type_info struct. */ | |
1131 static type_info_t type_info_init = { | |
1132 bt_Nil, /* basic type */ | |
1133 T_NULL, /* original COFF-based type */ | |
1134 0, /* # type qualifiers */ | |
1135 0, /* # dimensions */ | |
1136 0, /* # sizes */ | |
1137 0, /* sizes not tied with dims */ | |
1138 NULL, /* ptr to tag */ | |
1139 0, /* bitfield */ | |
1140 0, /* unknown tag */ | |
1141 { /* type qualifiers */ | |
1142 tq_Nil, | |
1143 tq_Nil, | |
1144 tq_Nil, | |
1145 tq_Nil, | |
1146 tq_Nil, | |
1147 tq_Nil, | |
1148 }, | |
1149 { /* dimensions */ | |
1150 0, | |
1151 0, | |
1152 0, | |
1153 0, | |
1154 0, | |
1155 0 | |
1156 }, | |
1157 { /* sizes */ | |
1158 0, | |
1159 0, | |
1160 0, | |
1161 0, | |
1162 0, | |
1163 0, | |
1164 0, | |
1165 0, | |
1166 }, | |
1167 }; | |
1168 | |
1169 | |
1170 /* Global virtual arrays & hash table for external strings as well as | |
1171 for the tags table and global tables for file descriptors, and | |
1172 dense numbers. */ | |
1173 | |
1174 static varray_t file_desc = INIT_VARRAY (efdr_t); | |
1175 static varray_t dense_num = INIT_VARRAY (DNR); | |
1176 static varray_t tag_strings = INIT_VARRAY (char); | |
1177 static varray_t ext_strings = INIT_VARRAY (char); | |
1178 static varray_t ext_symbols = INIT_VARRAY (EXTR); | |
1179 | |
1180 static shash_t *orig_str_hash[SHASH_SIZE]; | |
1181 static shash_t *ext_str_hash [SHASH_SIZE]; | |
1182 static shash_t *tag_hash [SHASH_SIZE]; | |
1183 | |
1184 /* Static types for int and void. Also, remember the last function's | |
1185 type (which is set up when we encounter the declaration for the | |
1186 function, and used when the end block for the function is emitted. */ | |
1187 | |
1188 static type_info_t int_type_info; | |
1189 static type_info_t void_type_info; | |
1190 static type_info_t last_func_type_info; | |
1191 static EXTR *last_func_eptr; | |
1192 | |
1193 | |
1194 /* Convert COFF basic type to ECOFF basic type. The T_NULL type | |
1195 really should use bt_Void, but this causes the current ecoff GDB to | |
1196 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS | |
1197 2.0) doesn't understand it, even though the compiler generates it. | |
1198 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler | |
1199 suite, but for now go with what works. */ | |
1200 | |
1201 static const bt_t map_coff_types[ (int) T_MAX ] = { | |
1202 bt_Nil, /* T_NULL */ | |
1203 bt_Nil, /* T_ARG */ | |
1204 bt_Char, /* T_CHAR */ | |
1205 bt_Short, /* T_SHORT */ | |
1206 bt_Int, /* T_INT */ | |
1207 bt_Long, /* T_LONG */ | |
1208 bt_Float, /* T_FLOAT */ | |
1209 bt_Double, /* T_DOUBLE */ | |
1210 bt_Struct, /* T_STRUCT */ | |
1211 bt_Union, /* T_UNION */ | |
1212 bt_Enum, /* T_ENUM */ | |
1213 bt_Enum, /* T_MOE */ | |
1214 bt_UChar, /* T_UCHAR */ | |
1215 bt_UShort, /* T_USHORT */ | |
1216 bt_UInt, /* T_UINT */ | |
1217 bt_ULong /* T_ULONG */ | |
1218 }; | |
1219 | |
1220 /* Convert COFF storage class to ECOFF storage class. */ | |
1221 static const sc_t map_coff_storage[ (int) C_MAX ] = { | |
1222 sc_Nil, /* 0: C_NULL */ | |
1223 sc_Abs, /* 1: C_AUTO auto var */ | |
1224 sc_Undefined, /* 2: C_EXT external */ | |
1225 sc_Data, /* 3: C_STAT static */ | |
1226 sc_Register, /* 4: C_REG register */ | |
1227 sc_Undefined, /* 5: C_EXTDEF ??? */ | |
1228 sc_Text, /* 6: C_LABEL label */ | |
1229 sc_Text, /* 7: C_ULABEL user label */ | |
1230 sc_Info, /* 8: C_MOS member of struct */ | |
1231 sc_Abs, /* 9: C_ARG argument */ | |
1232 sc_Info, /* 10: C_STRTAG struct tag */ | |
1233 sc_Info, /* 11: C_MOU member of union */ | |
1234 sc_Info, /* 12: C_UNTAG union tag */ | |
1235 sc_Info, /* 13: C_TPDEF typedef */ | |
1236 sc_Data, /* 14: C_USTATIC ??? */ | |
1237 sc_Info, /* 15: C_ENTAG enum tag */ | |
1238 sc_Info, /* 16: C_MOE member of enum */ | |
1239 sc_Register, /* 17: C_REGPARM register parameter */ | |
1240 sc_Bits, /* 18; C_FIELD bitfield */ | |
1241 sc_Nil, /* 19 */ | |
1242 sc_Nil, /* 20 */ | |
1243 sc_Nil, /* 21 */ | |
1244 sc_Nil, /* 22 */ | |
1245 sc_Nil, /* 23 */ | |
1246 sc_Nil, /* 24 */ | |
1247 sc_Nil, /* 25 */ | |
1248 sc_Nil, /* 26 */ | |
1249 sc_Nil, /* 27 */ | |
1250 sc_Nil, /* 28 */ | |
1251 sc_Nil, /* 29 */ | |
1252 sc_Nil, /* 30 */ | |
1253 sc_Nil, /* 31 */ | |
1254 sc_Nil, /* 32 */ | |
1255 sc_Nil, /* 33 */ | |
1256 sc_Nil, /* 34 */ | |
1257 sc_Nil, /* 35 */ | |
1258 sc_Nil, /* 36 */ | |
1259 sc_Nil, /* 37 */ | |
1260 sc_Nil, /* 38 */ | |
1261 sc_Nil, /* 39 */ | |
1262 sc_Nil, /* 40 */ | |
1263 sc_Nil, /* 41 */ | |
1264 sc_Nil, /* 42 */ | |
1265 sc_Nil, /* 43 */ | |
1266 sc_Nil, /* 44 */ | |
1267 sc_Nil, /* 45 */ | |
1268 sc_Nil, /* 46 */ | |
1269 sc_Nil, /* 47 */ | |
1270 sc_Nil, /* 48 */ | |
1271 sc_Nil, /* 49 */ | |
1272 sc_Nil, /* 50 */ | |
1273 sc_Nil, /* 51 */ | |
1274 sc_Nil, /* 52 */ | |
1275 sc_Nil, /* 53 */ | |
1276 sc_Nil, /* 54 */ | |
1277 sc_Nil, /* 55 */ | |
1278 sc_Nil, /* 56 */ | |
1279 sc_Nil, /* 57 */ | |
1280 sc_Nil, /* 58 */ | |
1281 sc_Nil, /* 59 */ | |
1282 sc_Nil, /* 60 */ | |
1283 sc_Nil, /* 61 */ | |
1284 sc_Nil, /* 62 */ | |
1285 sc_Nil, /* 63 */ | |
1286 sc_Nil, /* 64 */ | |
1287 sc_Nil, /* 65 */ | |
1288 sc_Nil, /* 66 */ | |
1289 sc_Nil, /* 67 */ | |
1290 sc_Nil, /* 68 */ | |
1291 sc_Nil, /* 69 */ | |
1292 sc_Nil, /* 70 */ | |
1293 sc_Nil, /* 71 */ | |
1294 sc_Nil, /* 72 */ | |
1295 sc_Nil, /* 73 */ | |
1296 sc_Nil, /* 74 */ | |
1297 sc_Nil, /* 75 */ | |
1298 sc_Nil, /* 76 */ | |
1299 sc_Nil, /* 77 */ | |
1300 sc_Nil, /* 78 */ | |
1301 sc_Nil, /* 79 */ | |
1302 sc_Nil, /* 80 */ | |
1303 sc_Nil, /* 81 */ | |
1304 sc_Nil, /* 82 */ | |
1305 sc_Nil, /* 83 */ | |
1306 sc_Nil, /* 84 */ | |
1307 sc_Nil, /* 85 */ | |
1308 sc_Nil, /* 86 */ | |
1309 sc_Nil, /* 87 */ | |
1310 sc_Nil, /* 88 */ | |
1311 sc_Nil, /* 89 */ | |
1312 sc_Nil, /* 90 */ | |
1313 sc_Nil, /* 91 */ | |
1314 sc_Nil, /* 92 */ | |
1315 sc_Nil, /* 93 */ | |
1316 sc_Nil, /* 94 */ | |
1317 sc_Nil, /* 95 */ | |
1318 sc_Nil, /* 96 */ | |
1319 sc_Nil, /* 97 */ | |
1320 sc_Nil, /* 98 */ | |
1321 sc_Nil, /* 99 */ | |
1322 sc_Text, /* 100: C_BLOCK block start/end */ | |
1323 sc_Text, /* 101: C_FCN function start/end */ | |
1324 sc_Info, /* 102: C_EOS end of struct/union/enum */ | |
1325 sc_Nil, /* 103: C_FILE file start */ | |
1326 sc_Nil, /* 104: C_LINE line number */ | |
1327 sc_Nil, /* 105: C_ALIAS combined type info */ | |
1328 sc_Nil, /* 106: C_HIDDEN ??? */ | |
1329 }; | |
1330 | |
1331 /* Convert COFF storage class to ECOFF symbol type. */ | |
1332 static const st_t map_coff_sym_type[ (int) C_MAX ] = { | |
1333 st_Nil, /* 0: C_NULL */ | |
1334 st_Local, /* 1: C_AUTO auto var */ | |
1335 st_Global, /* 2: C_EXT external */ | |
1336 st_Static, /* 3: C_STAT static */ | |
1337 st_Local, /* 4: C_REG register */ | |
1338 st_Global, /* 5: C_EXTDEF ??? */ | |
1339 st_Label, /* 6: C_LABEL label */ | |
1340 st_Label, /* 7: C_ULABEL user label */ | |
1341 st_Member, /* 8: C_MOS member of struct */ | |
1342 st_Param, /* 9: C_ARG argument */ | |
1343 st_Block, /* 10: C_STRTAG struct tag */ | |
1344 st_Member, /* 11: C_MOU member of union */ | |
1345 st_Block, /* 12: C_UNTAG union tag */ | |
1346 st_Typedef, /* 13: C_TPDEF typedef */ | |
1347 st_Static, /* 14: C_USTATIC ??? */ | |
1348 st_Block, /* 15: C_ENTAG enum tag */ | |
1349 st_Member, /* 16: C_MOE member of enum */ | |
1350 st_Param, /* 17: C_REGPARM register parameter */ | |
1351 st_Member, /* 18; C_FIELD bitfield */ | |
1352 st_Nil, /* 19 */ | |
1353 st_Nil, /* 20 */ | |
1354 st_Nil, /* 21 */ | |
1355 st_Nil, /* 22 */ | |
1356 st_Nil, /* 23 */ | |
1357 st_Nil, /* 24 */ | |
1358 st_Nil, /* 25 */ | |
1359 st_Nil, /* 26 */ | |
1360 st_Nil, /* 27 */ | |
1361 st_Nil, /* 28 */ | |
1362 st_Nil, /* 29 */ | |
1363 st_Nil, /* 30 */ | |
1364 st_Nil, /* 31 */ | |
1365 st_Nil, /* 32 */ | |
1366 st_Nil, /* 33 */ | |
1367 st_Nil, /* 34 */ | |
1368 st_Nil, /* 35 */ | |
1369 st_Nil, /* 36 */ | |
1370 st_Nil, /* 37 */ | |
1371 st_Nil, /* 38 */ | |
1372 st_Nil, /* 39 */ | |
1373 st_Nil, /* 40 */ | |
1374 st_Nil, /* 41 */ | |
1375 st_Nil, /* 42 */ | |
1376 st_Nil, /* 43 */ | |
1377 st_Nil, /* 44 */ | |
1378 st_Nil, /* 45 */ | |
1379 st_Nil, /* 46 */ | |
1380 st_Nil, /* 47 */ | |
1381 st_Nil, /* 48 */ | |
1382 st_Nil, /* 49 */ | |
1383 st_Nil, /* 50 */ | |
1384 st_Nil, /* 51 */ | |
1385 st_Nil, /* 52 */ | |
1386 st_Nil, /* 53 */ | |
1387 st_Nil, /* 54 */ | |
1388 st_Nil, /* 55 */ | |
1389 st_Nil, /* 56 */ | |
1390 st_Nil, /* 57 */ | |
1391 st_Nil, /* 58 */ | |
1392 st_Nil, /* 59 */ | |
1393 st_Nil, /* 60 */ | |
1394 st_Nil, /* 61 */ | |
1395 st_Nil, /* 62 */ | |
1396 st_Nil, /* 63 */ | |
1397 st_Nil, /* 64 */ | |
1398 st_Nil, /* 65 */ | |
1399 st_Nil, /* 66 */ | |
1400 st_Nil, /* 67 */ | |
1401 st_Nil, /* 68 */ | |
1402 st_Nil, /* 69 */ | |
1403 st_Nil, /* 70 */ | |
1404 st_Nil, /* 71 */ | |
1405 st_Nil, /* 72 */ | |
1406 st_Nil, /* 73 */ | |
1407 st_Nil, /* 74 */ | |
1408 st_Nil, /* 75 */ | |
1409 st_Nil, /* 76 */ | |
1410 st_Nil, /* 77 */ | |
1411 st_Nil, /* 78 */ | |
1412 st_Nil, /* 79 */ | |
1413 st_Nil, /* 80 */ | |
1414 st_Nil, /* 81 */ | |
1415 st_Nil, /* 82 */ | |
1416 st_Nil, /* 83 */ | |
1417 st_Nil, /* 84 */ | |
1418 st_Nil, /* 85 */ | |
1419 st_Nil, /* 86 */ | |
1420 st_Nil, /* 87 */ | |
1421 st_Nil, /* 88 */ | |
1422 st_Nil, /* 89 */ | |
1423 st_Nil, /* 90 */ | |
1424 st_Nil, /* 91 */ | |
1425 st_Nil, /* 92 */ | |
1426 st_Nil, /* 93 */ | |
1427 st_Nil, /* 94 */ | |
1428 st_Nil, /* 95 */ | |
1429 st_Nil, /* 96 */ | |
1430 st_Nil, /* 97 */ | |
1431 st_Nil, /* 98 */ | |
1432 st_Nil, /* 99 */ | |
1433 st_Block, /* 100: C_BLOCK block start/end */ | |
1434 st_Proc, /* 101: C_FCN function start/end */ | |
1435 st_End, /* 102: C_EOS end of struct/union/enum */ | |
1436 st_File, /* 103: C_FILE file start */ | |
1437 st_Nil, /* 104: C_LINE line number */ | |
1438 st_Nil, /* 105: C_ALIAS combined type info */ | |
1439 st_Nil, /* 106: C_HIDDEN ??? */ | |
1440 }; | |
1441 | |
1442 /* Map COFF derived types to ECOFF type qualifiers. */ | |
1443 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = { | |
1444 tq_Nil, /* 0: DT_NON no more qualifiers */ | |
1445 tq_Ptr, /* 1: DT_PTR pointer */ | |
1446 tq_Proc, /* 2: DT_FCN function */ | |
1447 tq_Array, /* 3: DT_ARY array */ | |
1448 }; | |
1449 | |
1450 | |
1451 /* Keep track of different sized allocation requests. */ | |
1452 static alloc_info_t alloc_counts[ (int) alloc_type_last ]; | |
1453 | |
1454 | |
1455 /* Pointers and such to the original symbol table that is read in. */ | |
1456 static struct filehdr orig_file_header; /* global object file header */ | |
1457 | |
1458 static HDRR orig_sym_hdr; /* symbolic header on input */ | |
1459 static char *orig_linenum; /* line numbers */ | |
1460 static DNR *orig_dense; /* dense numbers */ | |
1461 static PDR *orig_procs; /* procedures */ | |
1462 static SYMR *orig_local_syms; /* local symbols */ | |
1463 static OPTR *orig_opt_syms; /* optimization symbols */ | |
1464 static AUXU *orig_aux_syms; /* auxiliary symbols */ | |
1465 static char *orig_local_strs; /* local strings */ | |
1466 static char *orig_ext_strs; /* external strings */ | |
1467 static FDR *orig_files; /* file descriptors */ | |
1468 static symint_t *orig_rfds; /* relative file desc's */ | |
1469 static EXTR *orig_ext_syms; /* external symbols */ | |
1470 | |
1471 /* Macros to convert an index into a given object within the original | |
1472 symbol table. */ | |
1473 #define CHECK(num,max,str) \ | |
1474 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0) | |
1475 | |
1476 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum) | |
1477 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense) | |
1478 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs) | |
1479 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files) | |
1480 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms) | |
1481 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs) | |
1482 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms) | |
1483 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs) | |
1484 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms) | |
1485 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms) | |
1486 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds) | |
1487 | |
1488 /* Various other statics. */ | |
1489 static HDRR symbolic_header; /* symbolic header */ | |
1490 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ | |
1491 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */ | |
1492 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */ | |
1493 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */ | |
1494 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/ | |
1495 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */ | |
1496 static unsigned long file_offset = 0; /* current file offset */ | |
1497 static unsigned long max_file_offset = 0; /* maximum file offset */ | |
1498 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */ | |
1499 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */ | |
1500 static char *progname = (char *) 0; /* program name for errors */ | |
1501 static const char *input_name = "stdin"; /* name of input file */ | |
1502 static char *object_name = (char *) 0; /* tmp. name of object file */ | |
1503 static char *obj_in_name = (char *) 0; /* name of input object file */ | |
1504 static char *cur_line_start = (char *) 0; /* current line read in */ | |
1505 static char *cur_line_ptr = (char *) 0; /* ptr within current line */ | |
1506 static unsigned cur_line_nbytes = 0; /* # bytes for current line */ | |
1507 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */ | |
1508 static long line_number = 0; /* current input line number */ | |
1509 static int debug = 0; /* trace functions */ | |
1510 static int version = 0; /* print version # */ | |
1511 static int verbose = 0; | |
1512 static int had_errors = 0; /* != 0 if errors were found */ | |
1513 static int rename_output = 0; /* != 0 if rename output file*/ | |
1514 static int delete_input = 0; /* != 0 if delete input after done */ | |
1515 static int stabs_seen = 0; /* != 0 if stabs have been seen */ | |
1516 | |
1517 | |
1518 /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
1519 #ifndef STABS_SYMBOL | |
1520 #define STABS_SYMBOL "@stabs" | |
1521 #endif | |
1522 | |
1523 static const char stabs_symbol[] = STABS_SYMBOL; | |
1524 | |
1525 | |
1526 /* Forward reference for functions. See the definition for more details. */ | |
1527 | |
1528 #ifndef STATIC | |
1529 #define STATIC static | |
1530 #endif | |
1531 | |
1532 STATIC int out_of_bounds (symint_t, symint_t, const char *, int); | |
1533 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *); | |
1534 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *, | |
1535 shash_t **); | |
1536 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t, | |
1537 symint_t, symint_t); | |
1538 STATIC symint_t add_ext_symbol (EXTR *, int); | |
1539 STATIC symint_t add_aux_sym_symint (symint_t); | |
1540 STATIC symint_t add_aux_sym_rndx (int, symint_t); | |
1541 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **); | |
1542 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t); | |
1543 STATIC void add_unknown_tag (tag_t *); | |
1544 STATIC void add_procedure (const char *, const char *); | |
1545 STATIC void initialize_init_file (void); | |
1546 STATIC void add_file (const char *, const char *); | |
1547 STATIC void add_bytes (varray_t *, char *, Size_t); | |
1548 STATIC void add_varray_page (varray_t *); | |
1549 STATIC void update_headers (void); | |
1550 STATIC void write_varray (varray_t *, off_t, const char *); | |
1551 STATIC void write_object (void); | |
1552 STATIC const char *st_to_string (st_t); | |
1553 STATIC const char *sc_to_string (sc_t); | |
1554 STATIC char *read_line (void); | |
1555 STATIC void parse_input (void); | |
1556 STATIC void mark_stabs (const char *); | |
1557 STATIC void parse_begin (const char *); | |
1558 STATIC void parse_bend (const char *); | |
1559 STATIC void parse_def (const char *); | |
1560 STATIC void parse_end (const char *); | |
1561 STATIC void parse_ent (const char *); | |
1562 STATIC void parse_file (const char *); | |
1563 STATIC void parse_stabs_common (const char *, const char *, const char *); | |
1564 STATIC void parse_stabs (const char *); | |
1565 STATIC void parse_stabn (const char *); | |
1566 STATIC page_t *read_seek (Size_t, off_t, const char *); | |
1567 STATIC void copy_object (void); | |
1568 | |
1569 STATIC void catch_signal (int) ATTRIBUTE_NORETURN; | |
1570 STATIC page_t *allocate_page (void); | |
1571 STATIC page_t *allocate_multiple_pages (Size_t); | |
1572 STATIC void free_multiple_pages (page_t *, Size_t); | |
1573 | |
1574 #ifndef MALLOC_CHECK | |
1575 STATIC page_t *allocate_cluster (Size_t); | |
1576 #endif | |
1577 | |
1578 STATIC forward_t *allocate_forward (void); | |
1579 STATIC scope_t *allocate_scope (void); | |
1580 STATIC shash_t *allocate_shash (void); | |
1581 STATIC tag_t *allocate_tag (void); | |
1582 STATIC thash_t *allocate_thash (void); | |
1583 STATIC thead_t *allocate_thead (void); | |
1584 STATIC vlinks_t *allocate_vlinks (void); | |
1585 | |
1586 STATIC void free_forward (forward_t *); | |
1587 STATIC void free_scope (scope_t *); | |
1588 STATIC void free_tag (tag_t *); | |
1589 STATIC void free_thead (thead_t *); | |
1590 | |
1591 extern char *optarg; | |
1592 extern int optind; | |
1593 extern int opterr; | |
1594 | |
1595 /* List of assembler pseudo ops and beginning sequences that need | |
1596 special actions. Someday, this should be a hash table, and such, | |
1597 but for now a linear list of names and calls to memcmp will | |
1598 do...... */ | |
1599 | |
1600 typedef struct _pseudo_ops { | |
1601 const char *const name; /* pseudo-op in ascii */ | |
1602 const int len; /* length of name to compare */ | |
1603 void (*const func) (const char *); /* function to handle line */ | |
1604 } pseudo_ops_t; | |
1605 | |
1606 static const pseudo_ops_t pseudo_ops[] = { | |
1607 { "#.def", sizeof("#.def")-1, parse_def }, | |
1608 { "#.begin", sizeof("#.begin")-1, parse_begin }, | |
1609 { "#.bend", sizeof("#.bend")-1, parse_bend }, | |
1610 { ".end", sizeof(".end")-1, parse_end }, | |
1611 { ".ent", sizeof(".ent")-1, parse_ent }, | |
1612 { ".file", sizeof(".file")-1, parse_file }, | |
1613 { "#.stabs", sizeof("#.stabs")-1, parse_stabs }, | |
1614 { "#.stabn", sizeof("#.stabn")-1, parse_stabn }, | |
1615 { ".stabs", sizeof(".stabs")-1, parse_stabs }, | |
1616 { ".stabn", sizeof(".stabn")-1, parse_stabn }, | |
1617 { "#@stabs", sizeof("#@stabs")-1, mark_stabs }, | |
1618 }; | |
1619 | |
1620 | |
1621 /* Command line options for getopt_long. */ | |
1622 | |
1623 static const struct option options[] = | |
1624 { | |
1625 { "version", 0, 0, 'V' }, | |
1626 { "verbose", 0, 0, 'v' }, | |
1627 { 0, 0, 0, 0 } | |
1628 }; | |
1629 | |
1630 /* Add a page to a varray object. */ | |
1631 | |
1632 STATIC void | |
1633 add_varray_page (varray_t *vp) | |
1634 { | |
1635 vlinks_t *new_links = allocate_vlinks (); | |
1636 | |
1637 #ifdef MALLOC_CHECK | |
1638 if (vp->object_size > 1) | |
1639 new_links->datum = xcalloc (1, vp->object_size); | |
1640 else | |
1641 #endif | |
1642 new_links->datum = allocate_page (); | |
1643 | |
1644 alloc_counts[ (int) alloc_type_varray ].total_alloc++; | |
1645 alloc_counts[ (int) alloc_type_varray ].total_pages++; | |
1646 | |
1647 new_links->start_index = vp->num_allocated; | |
1648 vp->objects_last_page = 0; | |
1649 | |
1650 if (vp->first == (vlinks_t *) 0) /* first allocation? */ | |
1651 vp->first = vp->last = new_links; | |
1652 else | |
1653 { /* 2nd or greater allocation */ | |
1654 new_links->prev = vp->last; | |
1655 vp->last->next = new_links; | |
1656 vp->last = new_links; | |
1657 } | |
1658 } | |
1659 | |
1660 | |
1661 /* Compute hash code (from tree.c) */ | |
1662 | |
1663 #define HASHBITS 30 | |
1664 | |
1665 STATIC shash_t * | |
1666 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl, | |
1667 symint_t *ret_hash_index) | |
1668 { | |
1669 unsigned long hi; | |
1670 Ptrdiff_t i; | |
1671 shash_t *ptr; | |
1672 int first_ch = *text; | |
1673 | |
1674 hi = hash_len; | |
1675 for (i = 0; i < hash_len; i++) | |
1676 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff); | |
1677 | |
1678 hi &= (1 << HASHBITS) - 1; | |
1679 hi %= SHASH_SIZE; | |
1680 | |
1681 if (ret_hash_index != (symint_t *) 0) | |
1682 *ret_hash_index = hi; | |
1683 | |
1684 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next) | |
1685 if ((symint_t) hash_len == ptr->len | |
1686 && first_ch == ptr->string[0] | |
1687 && memcmp (text, ptr->string, hash_len) == 0) | |
1688 break; | |
1689 | |
1690 return ptr; | |
1691 } | |
1692 | |
1693 | |
1694 /* Add a string (and null pad) to one of the string tables. A | |
1695 consequence of hashing strings, is that we don't let strings cross | |
1696 page boundaries. The extra nulls will be ignored. VP is a string | |
1697 virtual array, HASH_TBL a pointer to the hash table, the string | |
1698 starts at START and the position one byte after the string is given | |
1699 with END_P1, the resulting hash pointer is returned in RET_HASH. */ | |
1700 | |
1701 STATIC symint_t | |
1702 add_string (varray_t *vp, shash_t **hash_tbl, const char *start, | |
1703 const char *end_p1, shash_t **ret_hash) | |
1704 { | |
1705 Ptrdiff_t len = end_p1 - start; | |
1706 shash_t *hash_ptr; | |
1707 symint_t hi; | |
1708 | |
1709 if (len >= (Ptrdiff_t) PAGE_USIZE) | |
1710 fatal ("string too big (%ld bytes)", (long) len); | |
1711 | |
1712 hash_ptr = hash_string (start, len, hash_tbl, &hi); | |
1713 if (hash_ptr == (shash_t *) 0) | |
1714 { | |
1715 char *p; | |
1716 | |
1717 if (vp->objects_last_page + len >= (long) PAGE_USIZE) | |
1718 { | |
1719 vp->num_allocated | |
1720 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; | |
1721 add_varray_page (vp); | |
1722 } | |
1723 | |
1724 hash_ptr = allocate_shash (); | |
1725 hash_ptr->next = hash_tbl[hi]; | |
1726 hash_tbl[hi] = hash_ptr; | |
1727 | |
1728 hash_ptr->len = len; | |
1729 hash_ptr->indx = vp->num_allocated; | |
1730 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ]; | |
1731 | |
1732 vp->objects_last_page += len+1; | |
1733 vp->num_allocated += len+1; | |
1734 | |
1735 while (len-- > 0) | |
1736 *p++ = *start++; | |
1737 | |
1738 *p = '\0'; | |
1739 } | |
1740 | |
1741 if (ret_hash != (shash_t **) 0) | |
1742 *ret_hash = hash_ptr; | |
1743 | |
1744 return hash_ptr->indx; | |
1745 } | |
1746 | |
1747 | |
1748 /* Add a local symbol. The symbol string starts at STR_START and the | |
1749 first byte after it is marked by STR_END_P1. The symbol has type | |
1750 TYPE and storage class STORAGE and value VALUE. INDX is an index | |
1751 to local/aux. symbols. */ | |
1752 | |
1753 STATIC symint_t | |
1754 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type, | |
1755 sc_t storage, symint_t value, symint_t indx) | |
1756 { | |
1757 symint_t ret; | |
1758 SYMR *psym; | |
1759 scope_t *pscope; | |
1760 thead_t *ptag_head; | |
1761 tag_t *ptag; | |
1762 tag_t *ptag_next; | |
1763 varray_t *vp = &cur_file_ptr->symbols; | |
1764 int scope_delta = 0; | |
1765 shash_t *hash_ptr = (shash_t *) 0; | |
1766 | |
1767 if (vp->objects_last_page == vp->objects_per_page) | |
1768 add_varray_page (vp); | |
1769 | |
1770 psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; | |
1771 | |
1772 psym->value = value; | |
1773 psym->st = (unsigned) type; | |
1774 psym->sc = (unsigned) storage; | |
1775 psym->index = indx; | |
1776 psym->iss = (str_start == (const char *) 0) | |
1777 ? 0 | |
1778 : add_string (&cur_file_ptr->strings, | |
1779 &cur_file_ptr->shash_head[0], | |
1780 str_start, | |
1781 str_end_p1, | |
1782 &hash_ptr); | |
1783 | |
1784 ret = vp->num_allocated++; | |
1785 | |
1786 if (MIPS_IS_STAB (psym)) | |
1787 return ret; | |
1788 | |
1789 /* Save the symbol within the hash table if this is a static | |
1790 item, and it has a name. */ | |
1791 if (hash_ptr != (shash_t *) 0 | |
1792 && (type == st_Global || type == st_Static || type == st_Label | |
1793 || type == st_Proc || type == st_StaticProc)) | |
1794 hash_ptr->sym_ptr = psym; | |
1795 | |
1796 /* push or pop a scope if appropriate. */ | |
1797 switch (type) | |
1798 { | |
1799 default: | |
1800 break; | |
1801 | |
1802 case st_File: /* beginning of file */ | |
1803 case st_Proc: /* procedure */ | |
1804 case st_StaticProc: /* static procedure */ | |
1805 case st_Block: /* begin scope */ | |
1806 pscope = allocate_scope (); | |
1807 pscope->prev = cur_file_ptr->cur_scope; | |
1808 pscope->lsym = psym; | |
1809 pscope->lnumber = ret; | |
1810 pscope->type = type; | |
1811 cur_file_ptr->cur_scope = pscope; | |
1812 | |
1813 if (type != st_File) | |
1814 scope_delta = 1; | |
1815 | |
1816 /* For every block type except file, struct, union, or | |
1817 enumeration blocks, push a level on the tag stack. We omit | |
1818 file types, so that tags can span file boundaries. */ | |
1819 if (type != st_File && storage != sc_Info) | |
1820 { | |
1821 ptag_head = allocate_thead (); | |
1822 ptag_head->first_tag = 0; | |
1823 ptag_head->prev = cur_tag_head; | |
1824 cur_tag_head = ptag_head; | |
1825 } | |
1826 break; | |
1827 | |
1828 case st_End: | |
1829 pscope = cur_file_ptr->cur_scope; | |
1830 if (pscope == (scope_t *) 0) | |
1831 error ("internal error, too many st_End's"); | |
1832 | |
1833 else | |
1834 { | |
1835 st_t begin_type = (st_t) pscope->lsym->st; | |
1836 | |
1837 if (begin_type != st_File) | |
1838 scope_delta = -1; | |
1839 | |
1840 /* Except for file, structure, union, or enumeration end | |
1841 blocks remove all tags created within this scope. */ | |
1842 if (begin_type != st_File && storage != sc_Info) | |
1843 { | |
1844 ptag_head = cur_tag_head; | |
1845 cur_tag_head = ptag_head->prev; | |
1846 | |
1847 for (ptag = ptag_head->first_tag; | |
1848 ptag != (tag_t *) 0; | |
1849 ptag = ptag_next) | |
1850 { | |
1851 if (ptag->forward_ref != (forward_t *) 0) | |
1852 add_unknown_tag (ptag); | |
1853 | |
1854 ptag_next = ptag->same_block; | |
1855 ptag->hash_ptr->tag_ptr = ptag->same_name; | |
1856 free_tag (ptag); | |
1857 } | |
1858 | |
1859 free_thead (ptag_head); | |
1860 } | |
1861 | |
1862 cur_file_ptr->cur_scope = pscope->prev; | |
1863 psym->index = pscope->lnumber; /* blk end gets begin sym # */ | |
1864 | |
1865 if (storage != sc_Info) | |
1866 psym->iss = pscope->lsym->iss; /* blk end gets same name */ | |
1867 | |
1868 if (begin_type == st_File || begin_type == st_Block) | |
1869 pscope->lsym->index = ret+1; /* block begin gets next sym # */ | |
1870 | |
1871 /* Functions push two or more aux words as follows: | |
1872 1st word: index+1 of the end symbol | |
1873 2nd word: type of the function (plus any aux words needed). | |
1874 Also, tie the external pointer back to the function begin symbol. */ | |
1875 else | |
1876 { | |
1877 symint_t type; | |
1878 pscope->lsym->index = add_aux_sym_symint (ret+1); | |
1879 type = add_aux_sym_tir (&last_func_type_info, | |
1880 hash_no, | |
1881 &cur_file_ptr->thash_head[0]); | |
1882 if (last_func_eptr) | |
1883 { | |
1884 last_func_eptr->ifd = cur_file_ptr->file_index; | |
1885 | |
1886 /* The index for an external st_Proc symbol is the index | |
1887 of the st_Proc symbol in the local symbol table. */ | |
1888 last_func_eptr->asym.index = psym->index; | |
1889 } | |
1890 } | |
1891 | |
1892 free_scope (pscope); | |
1893 } | |
1894 } | |
1895 | |
1896 cur_file_ptr->nested_scopes += scope_delta; | |
1897 | |
1898 if (debug && type != st_File | |
1899 && (debug > 2 || type == st_Block || type == st_End | |
1900 || type == st_Proc || type == st_StaticProc)) | |
1901 { | |
1902 const char *sc_str = sc_to_string (storage); | |
1903 const char *st_str = st_to_string (type); | |
1904 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); | |
1905 | |
1906 fprintf (stderr, | |
1907 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", | |
1908 value, depth, sc_str); | |
1909 | |
1910 if (str_start && str_end_p1 - str_start > 0) | |
1911 fprintf (stderr, " st= %-11s name= %.*s\n", | |
1912 st_str, (int) (str_end_p1 - str_start), str_start); | |
1913 else | |
1914 { | |
1915 Size_t len = strlen (st_str); | |
1916 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str); | |
1917 } | |
1918 } | |
1919 | |
1920 return ret; | |
1921 } | |
1922 | |
1923 | |
1924 /* Add an external symbol with symbol pointer ESYM and file index | |
1925 IFD. */ | |
1926 | |
1927 STATIC symint_t | |
1928 add_ext_symbol (EXTR *esym, int ifd) | |
1929 { | |
1930 const char *str_start; /* first byte in string */ | |
1931 const char *str_end_p1; /* first byte after string */ | |
1932 EXTR *psym; | |
1933 varray_t *vp = &ext_symbols; | |
1934 shash_t *hash_ptr = (shash_t *) 0; | |
1935 | |
1936 str_start = ORIG_ESTRS (esym->asym.iss); | |
1937 str_end_p1 = str_start + strlen (str_start); | |
1938 | |
1939 if (debug > 1) | |
1940 { | |
1941 long value = esym->asym.value; | |
1942 const char *sc_str = sc_to_string (esym->asym.sc); | |
1943 const char *st_str = st_to_string (esym->asym.st); | |
1944 | |
1945 fprintf (stderr, | |
1946 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s", | |
1947 value, ifd, sc_str); | |
1948 | |
1949 if (str_start && str_end_p1 - str_start > 0) | |
1950 fprintf (stderr, " st= %-11s name= %.*s\n", | |
1951 st_str, (int) (str_end_p1 - str_start), str_start); | |
1952 else | |
1953 fprintf (stderr, " st= %s\n", st_str); | |
1954 } | |
1955 | |
1956 if (vp->objects_last_page == vp->objects_per_page) | |
1957 add_varray_page (vp); | |
1958 | |
1959 psym = &vp->last->datum->esym[ vp->objects_last_page++ ]; | |
1960 | |
1961 *psym = *esym; | |
1962 psym->ifd = ifd; | |
1963 psym->asym.index = indexNil; | |
1964 psym->asym.iss = (str_start == (const char *) 0) | |
1965 ? 0 | |
1966 : add_string (&ext_strings, | |
1967 &ext_str_hash[0], | |
1968 str_start, | |
1969 str_end_p1, | |
1970 &hash_ptr); | |
1971 | |
1972 hash_ptr->esym_ptr = psym; | |
1973 return vp->num_allocated++; | |
1974 } | |
1975 | |
1976 | |
1977 /* Add an auxiliary symbol (passing a symint). */ | |
1978 | |
1979 STATIC symint_t | |
1980 add_aux_sym_symint (symint_t aux_word) | |
1981 { | |
1982 AUXU *aux_ptr; | |
1983 efdr_t *file_ptr = cur_file_ptr; | |
1984 varray_t *vp = &file_ptr->aux_syms; | |
1985 | |
1986 if (vp->objects_last_page == vp->objects_per_page) | |
1987 add_varray_page (vp); | |
1988 | |
1989 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; | |
1990 aux_ptr->isym = aux_word; | |
1991 | |
1992 return vp->num_allocated++; | |
1993 } | |
1994 | |
1995 | |
1996 /* Add an auxiliary symbol (passing a file/symbol index combo). */ | |
1997 | |
1998 STATIC symint_t | |
1999 add_aux_sym_rndx (int file_index, symint_t sym_index) | |
2000 { | |
2001 AUXU *aux_ptr; | |
2002 efdr_t *file_ptr = cur_file_ptr; | |
2003 varray_t *vp = &file_ptr->aux_syms; | |
2004 | |
2005 if (vp->objects_last_page == vp->objects_per_page) | |
2006 add_varray_page (vp); | |
2007 | |
2008 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; | |
2009 aux_ptr->rndx.rfd = file_index; | |
2010 aux_ptr->rndx.index = sym_index; | |
2011 | |
2012 return vp->num_allocated++; | |
2013 } | |
2014 | |
2015 | |
2016 /* Add an auxiliary symbol (passing the basic type and possibly | |
2017 type qualifiers). */ | |
2018 | |
2019 STATIC symint_t | |
2020 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl) | |
2021 { | |
2022 AUXU *aux_ptr; | |
2023 efdr_t *file_ptr = cur_file_ptr; | |
2024 varray_t *vp = &file_ptr->aux_syms; | |
2025 static AUXU init_aux; | |
2026 symint_t ret; | |
2027 int i; | |
2028 AUXU aux; | |
2029 | |
2030 aux = init_aux; | |
2031 aux.ti.bt = (int) t->basic_type; | |
2032 aux.ti.continued = 0; | |
2033 aux.ti.fBitfield = t->bitfield; | |
2034 | |
2035 aux.ti.tq0 = (int) t->type_qualifiers[0]; | |
2036 aux.ti.tq1 = (int) t->type_qualifiers[1]; | |
2037 aux.ti.tq2 = (int) t->type_qualifiers[2]; | |
2038 aux.ti.tq3 = (int) t->type_qualifiers[3]; | |
2039 aux.ti.tq4 = (int) t->type_qualifiers[4]; | |
2040 aux.ti.tq5 = (int) t->type_qualifiers[5]; | |
2041 | |
2042 | |
2043 /* For anything that adds additional information, we must not hash, | |
2044 so check here, and reset our state. */ | |
2045 | |
2046 if (state != hash_no | |
2047 && (t->type_qualifiers[0] == tq_Array | |
2048 || t->type_qualifiers[1] == tq_Array | |
2049 || t->type_qualifiers[2] == tq_Array | |
2050 || t->type_qualifiers[3] == tq_Array | |
2051 || t->type_qualifiers[4] == tq_Array | |
2052 || t->type_qualifiers[5] == tq_Array | |
2053 || t->basic_type == bt_Struct | |
2054 || t->basic_type == bt_Union | |
2055 || t->basic_type == bt_Enum | |
2056 || t->bitfield | |
2057 || t->num_dims > 0)) | |
2058 state = hash_no; | |
2059 | |
2060 /* See if we can hash this type, and save some space, but some types | |
2061 can't be hashed (because they contain arrays or continuations), | |
2062 and others can be put into the hash list, but cannot use existing | |
2063 types because other aux entries precede this one. */ | |
2064 | |
2065 if (state != hash_no) | |
2066 { | |
2067 thash_t *hash_ptr; | |
2068 symint_t hi; | |
2069 | |
2070 hi = aux.isym & ((1 << HASHBITS) - 1); | |
2071 hi %= THASH_SIZE; | |
2072 | |
2073 for (hash_ptr = hash_tbl[hi]; | |
2074 hash_ptr != (thash_t *) 0; | |
2075 hash_ptr = hash_ptr->next) | |
2076 { | |
2077 if (aux.isym == hash_ptr->type.isym) | |
2078 break; | |
2079 } | |
2080 | |
2081 if (hash_ptr != (thash_t *) 0 && state == hash_yes) | |
2082 return hash_ptr->indx; | |
2083 | |
2084 if (hash_ptr == (thash_t *) 0) | |
2085 { | |
2086 hash_ptr = allocate_thash (); | |
2087 hash_ptr->next = hash_tbl[hi]; | |
2088 hash_ptr->type = aux; | |
2089 hash_ptr->indx = vp->num_allocated; | |
2090 hash_tbl[hi] = hash_ptr; | |
2091 } | |
2092 } | |
2093 | |
2094 /* Everything is set up, add the aux symbol. */ | |
2095 if (vp->objects_last_page == vp->objects_per_page) | |
2096 add_varray_page (vp); | |
2097 | |
2098 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; | |
2099 *aux_ptr = aux; | |
2100 | |
2101 ret = vp->num_allocated++; | |
2102 | |
2103 /* Add bitfield length if it exists. | |
2104 | |
2105 NOTE: Mips documentation claims bitfield goes at the end of the | |
2106 AUX record, but the DECstation compiler emits it here. | |
2107 (This would only make a difference for enum bitfields.) | |
2108 | |
2109 Also note: We use the last size given since gcc may emit 2 | |
2110 for an enum bitfield. */ | |
2111 | |
2112 if (t->bitfield) | |
2113 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]); | |
2114 | |
2115 | |
2116 /* Add tag information if needed. Structure, union, and enum | |
2117 references add 2 aux symbols: a [file index, symbol index] | |
2118 pointer to the structure type, and the current file index. */ | |
2119 | |
2120 if (t->basic_type == bt_Struct | |
2121 || t->basic_type == bt_Union | |
2122 || t->basic_type == bt_Enum) | |
2123 { | |
2124 symint_t file_index = t->tag_ptr->ifd; | |
2125 symint_t sym_index = t->tag_ptr->indx; | |
2126 | |
2127 if (t->unknown_tag) | |
2128 { | |
2129 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); | |
2130 (void) add_aux_sym_symint ((symint_t)-1); | |
2131 } | |
2132 else if (sym_index != indexNil) | |
2133 { | |
2134 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); | |
2135 (void) add_aux_sym_symint (file_index); | |
2136 } | |
2137 else | |
2138 { | |
2139 forward_t *forward_ref = allocate_forward (); | |
2140 | |
2141 forward_ref->type_ptr = aux_ptr; | |
2142 forward_ref->next = t->tag_ptr->forward_ref; | |
2143 t->tag_ptr->forward_ref = forward_ref; | |
2144 | |
2145 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); | |
2146 forward_ref->index_ptr | |
2147 = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
2148 | |
2149 (void) add_aux_sym_symint (file_index); | |
2150 forward_ref->ifd_ptr | |
2151 = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
2152 } | |
2153 } | |
2154 | |
2155 /* Add information about array bounds if they exist. */ | |
2156 for (i = 0; i < t->num_dims; i++) | |
2157 { | |
2158 (void) add_aux_sym_rndx (ST_RFDESCAPE, | |
2159 cur_file_ptr->int_type); | |
2160 | |
2161 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ | |
2162 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ | |
2163 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ | |
2164 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ | |
2165 ? 0 | |
2166 : (t->sizes[i] * 8) / t->dimensions[i]); | |
2167 }; | |
2168 | |
2169 /* NOTE: Mips documentation claims that the bitfield width goes here. | |
2170 But it needs to be emitted earlier. */ | |
2171 | |
2172 return ret; | |
2173 } | |
2174 | |
2175 | |
2176 /* Add a tag to the tag table (unless it already exists). */ | |
2177 | |
2178 STATIC tag_t * | |
2179 get_tag (const char *tag_start, /* 1st byte of tag name */ | |
2180 const char *tag_end_p1, /* 1st byte after tag name */ | |
2181 symint_t indx, /* index of tag start block */ | |
2182 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */ | |
2183 | |
2184 { | |
2185 shash_t *hash_ptr; | |
2186 tag_t *tag_ptr; | |
2187 hash_ptr = hash_string (tag_start, | |
2188 tag_end_p1 - tag_start, | |
2189 &tag_hash[0], | |
2190 (symint_t *) 0); | |
2191 | |
2192 if (hash_ptr != (shash_t *) 0 | |
2193 && hash_ptr->tag_ptr != (tag_t *) 0) | |
2194 { | |
2195 tag_ptr = hash_ptr->tag_ptr; | |
2196 if (indx != indexNil) | |
2197 { | |
2198 tag_ptr->basic_type = basic_type; | |
2199 tag_ptr->ifd = cur_file_ptr->file_index; | |
2200 tag_ptr->indx = indx; | |
2201 } | |
2202 return tag_ptr; | |
2203 } | |
2204 | |
2205 (void) add_string (&tag_strings, | |
2206 &tag_hash[0], | |
2207 tag_start, | |
2208 tag_end_p1, | |
2209 &hash_ptr); | |
2210 | |
2211 tag_ptr = allocate_tag (); | |
2212 tag_ptr->forward_ref = (forward_t *) 0; | |
2213 tag_ptr->hash_ptr = hash_ptr; | |
2214 tag_ptr->same_name = hash_ptr->tag_ptr; | |
2215 tag_ptr->basic_type = basic_type; | |
2216 tag_ptr->indx = indx; | |
2217 tag_ptr->ifd = (indx == indexNil | |
2218 ? (symint_t) -1 : cur_file_ptr->file_index); | |
2219 tag_ptr->same_block = cur_tag_head->first_tag; | |
2220 | |
2221 cur_tag_head->first_tag = tag_ptr; | |
2222 hash_ptr->tag_ptr = tag_ptr; | |
2223 | |
2224 return tag_ptr; | |
2225 } | |
2226 | |
2227 | |
2228 /* Add an unknown {struct, union, enum} tag. */ | |
2229 | |
2230 STATIC void | |
2231 add_unknown_tag (tag_t *ptag) | |
2232 { | |
2233 shash_t *hash_ptr = ptag->hash_ptr; | |
2234 char *name_start = hash_ptr->string; | |
2235 char *name_end_p1 = name_start + hash_ptr->len; | |
2236 forward_t *f_next = ptag->forward_ref; | |
2237 forward_t *f_cur; | |
2238 int sym_index; | |
2239 int file_index = cur_file_ptr->file_index; | |
2240 | |
2241 if (debug > 1) | |
2242 { | |
2243 const char *agg_type = "{unknown aggregate type}"; | |
2244 switch (ptag->basic_type) | |
2245 { | |
2246 case bt_Struct: agg_type = "struct"; break; | |
2247 case bt_Union: agg_type = "union"; break; | |
2248 case bt_Enum: agg_type = "enum"; break; | |
2249 default: break; | |
2250 } | |
2251 | |
2252 fprintf (stderr, "unknown %s %.*s found\n", | |
2253 agg_type, (int) hash_ptr->len, name_start); | |
2254 } | |
2255 | |
2256 sym_index = add_local_symbol (name_start, | |
2257 name_end_p1, | |
2258 st_Block, | |
2259 sc_Info, | |
2260 (symint_t) 0, | |
2261 (symint_t) 0); | |
2262 | |
2263 (void) add_local_symbol (name_start, | |
2264 name_end_p1, | |
2265 st_End, | |
2266 sc_Info, | |
2267 (symint_t) 0, | |
2268 (symint_t) 0); | |
2269 | |
2270 while (f_next != (forward_t *) 0) | |
2271 { | |
2272 f_cur = f_next; | |
2273 f_next = f_next->next; | |
2274 | |
2275 f_cur->ifd_ptr->isym = file_index; | |
2276 f_cur->index_ptr->rndx.index = sym_index; | |
2277 | |
2278 free_forward (f_cur); | |
2279 } | |
2280 | |
2281 return; | |
2282 } | |
2283 | |
2284 | |
2285 /* Add a procedure to the current file's list of procedures, and record | |
2286 this is the current procedure. If the assembler created a PDR for | |
2287 this procedure, use that to initialize the current PDR. */ | |
2288 | |
2289 STATIC void | |
2290 add_procedure (const char *func_start, /* 1st byte of func name */ | |
2291 const char *func_end_p1) /* 1st byte after func name */ | |
2292 { | |
2293 PDR *new_proc_ptr; | |
2294 efdr_t *file_ptr = cur_file_ptr; | |
2295 varray_t *vp = &file_ptr->procs; | |
2296 symint_t value = 0; | |
2297 st_t proc_type = st_Proc; | |
2298 shash_t *shash_ptr = hash_string (func_start, | |
2299 func_end_p1 - func_start, | |
2300 &orig_str_hash[0], | |
2301 (symint_t *) 0); | |
2302 | |
2303 if (debug) | |
2304 fputc ('\n', stderr); | |
2305 | |
2306 if (vp->objects_last_page == vp->objects_per_page) | |
2307 add_varray_page (vp); | |
2308 | |
2309 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ]; | |
2310 | |
2311 vp->num_allocated++; | |
2312 | |
2313 | |
2314 /* Did the assembler create this procedure? If so, get the PDR information. */ | |
2315 cur_oproc_ptr = (PDR *) 0; | |
2316 if (shash_ptr != (shash_t *) 0) | |
2317 { | |
2318 PDR *old_proc_ptr = shash_ptr->proc_ptr; | |
2319 SYMR *sym_ptr = shash_ptr->sym_ptr; | |
2320 | |
2321 if (old_proc_ptr != (PDR *) 0 | |
2322 && sym_ptr != (SYMR *) 0 | |
2323 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc)) | |
2324 { | |
2325 cur_oproc_begin = sym_ptr; | |
2326 cur_oproc_end = shash_ptr->end_ptr; | |
2327 value = sym_ptr->value; | |
2328 | |
2329 cur_oproc_ptr = old_proc_ptr; | |
2330 proc_type = (st_t) sym_ptr->st; | |
2331 *new_proc_ptr = *old_proc_ptr; /* initialize */ | |
2332 } | |
2333 } | |
2334 | |
2335 if (cur_oproc_ptr == (PDR *) 0) | |
2336 error ("did not find a PDR block for %.*s", | |
2337 (int) (func_end_p1 - func_start), func_start); | |
2338 | |
2339 /* Determine the start of symbols. */ | |
2340 new_proc_ptr->isym = file_ptr->symbols.num_allocated; | |
2341 | |
2342 /* Push the start of the function. */ | |
2343 (void) add_local_symbol (func_start, func_end_p1, | |
2344 proc_type, sc_Text, | |
2345 value, | |
2346 (symint_t) 0); | |
2347 } | |
2348 | |
2349 | |
2350 /* Initialize the init_file structure. */ | |
2351 | |
2352 STATIC void | |
2353 initialize_init_file (void) | |
2354 { | |
2355 union { | |
2356 unsigned char c[4]; | |
2357 int i; | |
2358 } endian_test; | |
2359 | |
2360 memset (&init_file, 0, sizeof (init_file)); | |
2361 | |
2362 init_file.fdr.lang = langC; | |
2363 init_file.fdr.fMerge = 1; | |
2364 init_file.fdr.glevel = GLEVEL_2; | |
2365 | |
2366 /* mips-tfile doesn't attempt to perform byte swapping and always writes | |
2367 out integers in its native ordering. For cross-compilers, this need | |
2368 not be the same as either the host or the target. The simplest thing | |
2369 to do is skip the configury and perform an introspective test. */ | |
2370 /* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64 | |
2371 and would/may require significant work to be used in cross-compiler | |
2372 configurations, so we could simply admit defeat and hard code this as | |
2373 little-endian, i.e. init_file.fdr.fBigendian = 0. */ | |
2374 endian_test.i = 1; | |
2375 if (endian_test.c[3]) | |
2376 init_file.fdr.fBigendian = 1; | |
2377 | |
2378 INITIALIZE_VARRAY (&init_file.strings, char); | |
2379 INITIALIZE_VARRAY (&init_file.symbols, SYMR); | |
2380 INITIALIZE_VARRAY (&init_file.procs, PDR); | |
2381 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU); | |
2382 | |
2383 init_file_initialized = 1; | |
2384 } | |
2385 | |
2386 /* Add a new filename, and set up all of the file relative | |
2387 virtual arrays (strings, symbols, aux syms, etc.). Record | |
2388 where the current file structure lives. */ | |
2389 | |
2390 STATIC void | |
2391 add_file (const char *file_start, /* first byte in string */ | |
2392 const char *file_end_p1) /* first byte after string */ | |
2393 { | |
2394 static char zero_bytes[2] = { '\0', '\0' }; | |
2395 | |
2396 Ptrdiff_t len = file_end_p1 - file_start; | |
2397 int first_ch = *file_start; | |
2398 efdr_t *file_ptr; | |
2399 | |
2400 if (debug) | |
2401 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start); | |
2402 | |
2403 /* See if the file has already been created. */ | |
2404 for (file_ptr = first_file; | |
2405 file_ptr != (efdr_t *) 0; | |
2406 file_ptr = file_ptr->next_file) | |
2407 { | |
2408 if (first_ch == file_ptr->name[0] | |
2409 && file_ptr->name[len] == '\0' | |
2410 && memcmp (file_start, file_ptr->name, len) == 0) | |
2411 { | |
2412 cur_file_ptr = file_ptr; | |
2413 break; | |
2414 } | |
2415 } | |
2416 | |
2417 /* If this is a new file, create it. */ | |
2418 if (file_ptr == (efdr_t *) 0) | |
2419 { | |
2420 if (file_desc.objects_last_page == file_desc.objects_per_page) | |
2421 add_varray_page (&file_desc); | |
2422 | |
2423 if (! init_file_initialized) | |
2424 initialize_init_file (); | |
2425 | |
2426 file_ptr = cur_file_ptr | |
2427 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ]; | |
2428 *file_ptr = init_file; | |
2429 | |
2430 file_ptr->file_index = file_desc.num_allocated++; | |
2431 | |
2432 /* Allocate the string hash table. */ | |
2433 file_ptr->shash_head = (shash_t **) allocate_page (); | |
2434 | |
2435 /* Make sure 0 byte in string table is null */ | |
2436 add_string (&file_ptr->strings, | |
2437 &file_ptr->shash_head[0], | |
2438 &zero_bytes[0], | |
2439 &zero_bytes[0], | |
2440 (shash_t **) 0); | |
2441 | |
2442 if (file_end_p1 - file_start > (long) PAGE_USIZE-2) | |
2443 fatal ("filename goes over one page boundary"); | |
2444 | |
2445 /* Push the start of the filename. We assume that the filename | |
2446 will be stored at string offset 1. */ | |
2447 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text, | |
2448 (symint_t) 0, (symint_t) 0); | |
2449 file_ptr->fdr.rss = 1; | |
2450 file_ptr->name = &file_ptr->strings.last->datum->byte[1]; | |
2451 file_ptr->name_len = file_end_p1 - file_start; | |
2452 | |
2453 /* Update the linked list of file descriptors. */ | |
2454 *last_file_ptr = file_ptr; | |
2455 last_file_ptr = &file_ptr->next_file; | |
2456 | |
2457 /* Add void & int types to the file (void should be first to catch | |
2458 errant 0's within the index fields). */ | |
2459 file_ptr->void_type = add_aux_sym_tir (&void_type_info, | |
2460 hash_yes, | |
2461 &cur_file_ptr->thash_head[0]); | |
2462 | |
2463 file_ptr->int_type = add_aux_sym_tir (&int_type_info, | |
2464 hash_yes, | |
2465 &cur_file_ptr->thash_head[0]); | |
2466 } | |
2467 } | |
2468 | |
2469 | |
2470 /* Add a stream of random bytes to a varray. */ | |
2471 | |
2472 STATIC void | |
2473 add_bytes (varray_t *vp, /* virtual array to add too */ | |
2474 char *input_ptr, /* start of the bytes */ | |
2475 Size_t nitems) /* # items to move */ | |
2476 { | |
2477 Size_t move_items; | |
2478 Size_t move_bytes; | |
2479 char *ptr; | |
2480 | |
2481 while (nitems > 0) | |
2482 { | |
2483 if (vp->objects_last_page >= vp->objects_per_page) | |
2484 add_varray_page (vp); | |
2485 | |
2486 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ]; | |
2487 move_items = vp->objects_per_page - vp->objects_last_page; | |
2488 if (move_items > nitems) | |
2489 move_items = nitems; | |
2490 | |
2491 move_bytes = move_items * vp->object_size; | |
2492 nitems -= move_items; | |
2493 | |
2494 if (move_bytes >= 32) | |
2495 { | |
2496 (void) memcpy (ptr, input_ptr, move_bytes); | |
2497 input_ptr += move_bytes; | |
2498 } | |
2499 else | |
2500 { | |
2501 while (move_bytes-- > 0) | |
2502 *ptr++ = *input_ptr++; | |
2503 } | |
2504 } | |
2505 } | |
2506 | |
2507 | |
2508 /* Convert storage class to string. */ | |
2509 | |
2510 STATIC const char * | |
2511 sc_to_string (sc_t storage_class) | |
2512 { | |
2513 switch (storage_class) | |
2514 { | |
2515 case sc_Nil: return "Nil,"; | |
2516 case sc_Text: return "Text,"; | |
2517 case sc_Data: return "Data,"; | |
2518 case sc_Bss: return "Bss,"; | |
2519 case sc_Register: return "Register,"; | |
2520 case sc_Abs: return "Abs,"; | |
2521 case sc_Undefined: return "Undefined,"; | |
2522 case sc_CdbLocal: return "CdbLocal,"; | |
2523 case sc_Bits: return "Bits,"; | |
2524 case sc_CdbSystem: return "CdbSystem,"; | |
2525 case sc_RegImage: return "RegImage,"; | |
2526 case sc_Info: return "Info,"; | |
2527 case sc_UserStruct: return "UserStruct,"; | |
2528 case sc_SData: return "SData,"; | |
2529 case sc_SBss: return "SBss,"; | |
2530 case sc_RData: return "RData,"; | |
2531 case sc_Var: return "Var,"; | |
2532 case sc_Common: return "Common,"; | |
2533 case sc_SCommon: return "SCommon,"; | |
2534 case sc_VarRegister: return "VarRegister,"; | |
2535 case sc_Variant: return "Variant,"; | |
2536 case sc_SUndefined: return "SUndefined,"; | |
2537 case sc_Init: return "Init,"; | |
2538 case sc_Max: return "Max,"; | |
2539 } | |
2540 | |
2541 return "???,"; | |
2542 } | |
2543 | |
2544 | |
2545 /* Convert symbol type to string. */ | |
2546 | |
2547 STATIC const char * | |
2548 st_to_string (st_t symbol_type) | |
2549 { | |
2550 switch (symbol_type) | |
2551 { | |
2552 case st_Nil: return "Nil,"; | |
2553 case st_Global: return "Global,"; | |
2554 case st_Static: return "Static,"; | |
2555 case st_Param: return "Param,"; | |
2556 case st_Local: return "Local,"; | |
2557 case st_Label: return "Label,"; | |
2558 case st_Proc: return "Proc,"; | |
2559 case st_Block: return "Block,"; | |
2560 case st_End: return "End,"; | |
2561 case st_Member: return "Member,"; | |
2562 case st_Typedef: return "Typedef,"; | |
2563 case st_File: return "File,"; | |
2564 case st_RegReloc: return "RegReloc,"; | |
2565 case st_Forward: return "Forward,"; | |
2566 case st_StaticProc: return "StaticProc,"; | |
2567 case st_Constant: return "Constant,"; | |
2568 case st_Str: return "String,"; | |
2569 case st_Number: return "Number,"; | |
2570 case st_Expr: return "Expr,"; | |
2571 case st_Type: return "Type,"; | |
2572 case st_Max: return "Max,"; | |
2573 } | |
2574 | |
2575 return "???,"; | |
2576 } | |
2577 | |
2578 | |
2579 /* Read a line from standard input, and return the start of the buffer | |
2580 (which is grows if the line is too big). We split lines at the | |
2581 semi-colon, and return each logical line independently. */ | |
2582 | |
2583 STATIC char * | |
2584 read_line (void) | |
2585 { | |
2586 static int line_split_p = 0; | |
2587 int string_p = 0; | |
2588 int comment_p = 0; | |
2589 int ch; | |
2590 char *ptr; | |
2591 | |
2592 if (cur_line_start == (char *) 0) | |
2593 { /* allocate initial page */ | |
2594 cur_line_start = (char *) allocate_page (); | |
2595 cur_line_alloc = PAGE_SIZE; | |
2596 } | |
2597 | |
2598 if (!line_split_p) | |
2599 line_number++; | |
2600 | |
2601 line_split_p = 0; | |
2602 cur_line_nbytes = 0; | |
2603 | |
2604 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch) | |
2605 { | |
2606 if (++cur_line_nbytes >= cur_line_alloc-1) | |
2607 { | |
2608 int num_pages = cur_line_alloc / PAGE_SIZE; | |
2609 char *old_buffer = cur_line_start; | |
2610 | |
2611 cur_line_alloc += PAGE_SIZE; | |
2612 cur_line_start = (char *) allocate_multiple_pages (num_pages+1); | |
2613 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE); | |
2614 | |
2615 ptr = cur_line_start + cur_line_nbytes - 1; | |
2616 } | |
2617 | |
2618 if (ch == '\n') | |
2619 { | |
2620 *ptr++ = '\n'; | |
2621 *ptr = '\0'; | |
2622 cur_line_ptr = cur_line_start; | |
2623 return cur_line_ptr; | |
2624 } | |
2625 | |
2626 else if (ch == '\0') | |
2627 error ("null character found in input"); | |
2628 | |
2629 else if (!comment_p) | |
2630 { | |
2631 if (ch == '"') | |
2632 string_p = !string_p; | |
2633 | |
2634 else if (ch == '#') | |
2635 comment_p++; | |
2636 | |
2637 else if (ch == ';' && !string_p) | |
2638 { | |
2639 line_split_p = 1; | |
2640 *ptr++ = '\n'; | |
2641 *ptr = '\0'; | |
2642 cur_line_ptr = cur_line_start; | |
2643 return cur_line_ptr; | |
2644 } | |
2645 } | |
2646 } | |
2647 | |
2648 if (ferror (stdin)) | |
2649 pfatal_with_name (input_name); | |
2650 | |
2651 cur_line_ptr = (char *) 0; | |
2652 return (char *) 0; | |
2653 } | |
2654 | |
2655 | |
2656 /* Parse #.begin directives which have a label as the first argument | |
2657 which gives the location of the start of the block. */ | |
2658 | |
2659 STATIC void | |
2660 parse_begin (const char *start) | |
2661 { | |
2662 const char *end_p1; /* end of label */ | |
2663 int ch; | |
2664 shash_t *hash_ptr; /* hash pointer to lookup label */ | |
2665 | |
2666 if (cur_file_ptr == (efdr_t *) 0) | |
2667 { | |
2668 error ("#.begin directive without a preceding .file directive"); | |
2669 return; | |
2670 } | |
2671 | |
2672 if (cur_proc_ptr == (PDR *) 0) | |
2673 { | |
2674 error ("#.begin directive without a preceding .ent directive"); | |
2675 return; | |
2676 } | |
2677 | |
2678 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) | |
2679 ; | |
2680 | |
2681 hash_ptr = hash_string (start, | |
2682 end_p1 - start, | |
2683 &orig_str_hash[0], | |
2684 (symint_t *) 0); | |
2685 | |
2686 if (hash_ptr == (shash_t *) 0) | |
2687 { | |
2688 error ("label %.*s not found for #.begin", | |
2689 (int) (end_p1 - start), start); | |
2690 return; | |
2691 } | |
2692 | |
2693 if (cur_oproc_begin == (SYMR *) 0) | |
2694 { | |
2695 error ("procedure table %.*s not found for #.begin", | |
2696 (int) (end_p1 - start), start); | |
2697 return; | |
2698 } | |
2699 | |
2700 (void) add_local_symbol ((const char *) 0, (const char *) 0, | |
2701 st_Block, sc_Text, | |
2702 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, | |
2703 (symint_t) 0); | |
2704 } | |
2705 | |
2706 | |
2707 /* Parse #.bend directives which have a label as the first argument | |
2708 which gives the location of the end of the block. */ | |
2709 | |
2710 STATIC void | |
2711 parse_bend (const char *start) | |
2712 { | |
2713 const char *end_p1; /* end of label */ | |
2714 int ch; | |
2715 shash_t *hash_ptr; /* hash pointer to lookup label */ | |
2716 | |
2717 if (cur_file_ptr == (efdr_t *) 0) | |
2718 { | |
2719 error ("#.begin directive without a preceding .file directive"); | |
2720 return; | |
2721 } | |
2722 | |
2723 if (cur_proc_ptr == (PDR *) 0) | |
2724 { | |
2725 error ("#.bend directive without a preceding .ent directive"); | |
2726 return; | |
2727 } | |
2728 | |
2729 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) | |
2730 ; | |
2731 | |
2732 hash_ptr = hash_string (start, | |
2733 end_p1 - start, | |
2734 &orig_str_hash[0], | |
2735 (symint_t *) 0); | |
2736 | |
2737 if (hash_ptr == (shash_t *) 0) | |
2738 { | |
2739 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start); | |
2740 return; | |
2741 } | |
2742 | |
2743 if (cur_oproc_begin == (SYMR *) 0) | |
2744 { | |
2745 error ("procedure table %.*s not found for #.bend", | |
2746 (int) (end_p1 - start), start); | |
2747 return; | |
2748 } | |
2749 | |
2750 (void) add_local_symbol ((const char *) 0, (const char *) 0, | |
2751 st_End, sc_Text, | |
2752 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, | |
2753 (symint_t) 0); | |
2754 } | |
2755 | |
2756 | |
2757 /* Parse #.def directives, which are contain standard COFF subdirectives | |
2758 to describe the debugging format. These subdirectives include: | |
2759 | |
2760 .scl specify storage class | |
2761 .val specify a value | |
2762 .endef specify end of COFF directives | |
2763 .type specify the type | |
2764 .size specify the size of an array | |
2765 .dim specify an array dimension | |
2766 .tag specify a tag for a struct, union, or enum. */ | |
2767 | |
2768 STATIC void | |
2769 parse_def (const char *name_start) | |
2770 { | |
2771 const char *dir_start; /* start of current directive*/ | |
2772 const char *dir_end_p1; /* end+1 of current directive*/ | |
2773 const char *arg_start; /* start of current argument */ | |
2774 const char *arg_end_p1; /* end+1 of current argument */ | |
2775 const char *name_end_p1; /* end+1 of label */ | |
2776 const char *tag_start = 0; /* start of tag name */ | |
2777 const char *tag_end_p1 = 0; /* end+1 of tag name */ | |
2778 sc_t storage_class = sc_Nil; | |
2779 st_t symbol_type = st_Nil; | |
2780 type_info_t t; | |
2781 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/ | |
2782 int is_function = 0; /* != 0 if function */ | |
2783 symint_t value = 0; | |
2784 symint_t indx = cur_file_ptr->void_type; | |
2785 int error_line = 0; | |
2786 symint_t arg_number; | |
2787 symint_t temp_array[ N_TQ ]; | |
2788 int arg_was_number; | |
2789 int ch, i; | |
2790 Ptrdiff_t len; | |
2791 | |
2792 static int inside_enumeration = 0; /* is this an enumeration? */ | |
2793 | |
2794 | |
2795 /* Initialize the type information. */ | |
2796 t = type_info_init; | |
2797 | |
2798 | |
2799 /* Search for the end of the name being defined. */ | |
2800 /* Allow spaces and such in names for G++ templates, which produce stabs | |
2801 that look like: | |
2802 | |
2803 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */ | |
2804 | |
2805 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++) | |
2806 ; | |
2807 | |
2808 if (ch == '\0') | |
2809 { | |
2810 error_line = __LINE__; | |
2811 saber_stop (); | |
2812 goto bomb_out; | |
2813 } | |
2814 | |
2815 /* Parse the remaining subdirectives now. */ | |
2816 dir_start = name_end_p1+1; | |
2817 for (;;) | |
2818 { | |
2819 while ((ch = *dir_start) == ' ' || ch == '\t') | |
2820 ++dir_start; | |
2821 | |
2822 if (ch != '.') | |
2823 { | |
2824 error_line = __LINE__; | |
2825 saber_stop (); | |
2826 goto bomb_out; | |
2827 } | |
2828 | |
2829 /* Are we done? */ | |
2830 if (dir_start[1] == 'e' | |
2831 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0) | |
2832 break; | |
2833 | |
2834 /* Pick up the subdirective now. */ | |
2835 for (dir_end_p1 = dir_start+1; | |
2836 (ch = *dir_end_p1) != ' ' && ch != '\t'; | |
2837 dir_end_p1++) | |
2838 { | |
2839 if (ch == '\0' || ISSPACE (ch)) | |
2840 { | |
2841 error_line = __LINE__; | |
2842 saber_stop (); | |
2843 goto bomb_out; | |
2844 } | |
2845 } | |
2846 | |
2847 /* Pick up the subdirective argument now. */ | |
2848 arg_was_number = arg_number = 0; | |
2849 arg_end_p1 = 0; | |
2850 arg_start = dir_end_p1+1; | |
2851 ch = *arg_start; | |
2852 while (ch == ' ' || ch == '\t') | |
2853 ch = *++arg_start; | |
2854 | |
2855 if (ISDIGIT (ch) || ch == '-' || ch == '+') | |
2856 { | |
2857 int ch2; | |
2858 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); | |
2859 /* It's only a number if followed by ';' or ','. */ | |
2860 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ',')) | |
2861 arg_was_number++; | |
2862 } | |
2863 | |
2864 else if (ch == '\0' || ISSPACE (ch)) | |
2865 { | |
2866 error_line = __LINE__; | |
2867 saber_stop (); | |
2868 goto bomb_out; | |
2869 } | |
2870 | |
2871 if (!arg_was_number) | |
2872 { | |
2873 /* Allow spaces and such in names for G++ templates. */ | |
2874 for (arg_end_p1 = arg_start+1; | |
2875 (ch = *arg_end_p1) != ';' && ch != '\0'; | |
2876 arg_end_p1++) | |
2877 ; | |
2878 | |
2879 if (ch == '\0') | |
2880 { | |
2881 error_line = __LINE__; | |
2882 saber_stop (); | |
2883 goto bomb_out; | |
2884 } | |
2885 } | |
2886 | |
2887 /* Classify the directives now. */ | |
2888 len = dir_end_p1 - dir_start; | |
2889 switch (dir_start[1]) | |
2890 { | |
2891 default: | |
2892 error_line = __LINE__; | |
2893 saber_stop (); | |
2894 goto bomb_out; | |
2895 | |
2896 case 'd': | |
2897 if (len == sizeof (".dim")-1 | |
2898 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0 | |
2899 && arg_was_number) | |
2900 { | |
2901 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; | |
2902 | |
2903 *t_ptr = arg_number; | |
2904 while (*arg_end_p1 == ',' && arg_was_number) | |
2905 { | |
2906 arg_start = arg_end_p1+1; | |
2907 ch = *arg_start; | |
2908 while (ch == ' ' || ch == '\t') | |
2909 ch = *++arg_start; | |
2910 | |
2911 arg_was_number = 0; | |
2912 if (ISDIGIT (ch) || ch == '-' || ch == '+') | |
2913 { | |
2914 int ch2; | |
2915 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); | |
2916 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ',')) | |
2917 arg_was_number++; | |
2918 | |
2919 if (t_ptr == &temp_array[0]) | |
2920 { | |
2921 error_line = __LINE__; | |
2922 saber_stop (); | |
2923 goto bomb_out; | |
2924 } | |
2925 | |
2926 *--t_ptr = arg_number; | |
2927 } | |
2928 } | |
2929 | |
2930 /* Reverse order of dimensions. */ | |
2931 while (t_ptr <= &temp_array[ N_TQ-1 ]) | |
2932 { | |
2933 if (t.num_dims >= N_TQ-1) | |
2934 { | |
2935 error_line = __LINE__; | |
2936 saber_stop (); | |
2937 goto bomb_out; | |
2938 } | |
2939 | |
2940 t.dimensions[ t.num_dims++ ] = *t_ptr++; | |
2941 } | |
2942 break; | |
2943 } | |
2944 else | |
2945 { | |
2946 error_line = __LINE__; | |
2947 saber_stop (); | |
2948 goto bomb_out; | |
2949 } | |
2950 | |
2951 | |
2952 case 's': | |
2953 if (len == sizeof (".scl")-1 | |
2954 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0 | |
2955 && arg_was_number | |
2956 && arg_number < ((symint_t) C_MAX)) | |
2957 { | |
2958 /* If the symbol is a static or external, we have | |
2959 already gotten the appropriate type and class, so | |
2960 make sure we don't override those values. This is | |
2961 needed because there are some type and classes that | |
2962 are not in COFF, such as short data, etc. */ | |
2963 if (symbol_type == st_Nil) | |
2964 { | |
2965 symbol_type = map_coff_sym_type[arg_number]; | |
2966 storage_class = map_coff_storage [arg_number]; | |
2967 } | |
2968 break; | |
2969 } | |
2970 | |
2971 else if (len == sizeof (".size")-1 | |
2972 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0 | |
2973 && arg_was_number) | |
2974 { | |
2975 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; | |
2976 | |
2977 *t_ptr = arg_number; | |
2978 while (*arg_end_p1 == ',' && arg_was_number) | |
2979 { | |
2980 arg_start = arg_end_p1+1; | |
2981 ch = *arg_start; | |
2982 while (ch == ' ' || ch == '\t') | |
2983 ch = *++arg_start; | |
2984 | |
2985 arg_was_number = 0; | |
2986 if (ISDIGIT (ch) || ch == '-' || ch == '+') | |
2987 { | |
2988 int ch2; | |
2989 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); | |
2990 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ',')) | |
2991 arg_was_number++; | |
2992 | |
2993 if (t_ptr == &temp_array[0]) | |
2994 { | |
2995 error_line = __LINE__; | |
2996 saber_stop (); | |
2997 goto bomb_out; | |
2998 } | |
2999 | |
3000 *--t_ptr = arg_number; | |
3001 } | |
3002 } | |
3003 | |
3004 /* Reverse order of sizes. */ | |
3005 while (t_ptr <= &temp_array[ N_TQ-1 ]) | |
3006 { | |
3007 if (t.num_sizes >= N_TQ-1) | |
3008 { | |
3009 error_line = __LINE__; | |
3010 saber_stop (); | |
3011 goto bomb_out; | |
3012 } | |
3013 | |
3014 t.sizes[ t.num_sizes++ ] = *t_ptr++; | |
3015 } | |
3016 break; | |
3017 } | |
3018 | |
3019 else | |
3020 { | |
3021 error_line = __LINE__; | |
3022 saber_stop (); | |
3023 goto bomb_out; | |
3024 } | |
3025 | |
3026 | |
3027 case 't': | |
3028 if (len == sizeof (".type")-1 | |
3029 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0 | |
3030 && arg_was_number) | |
3031 { | |
3032 tq_t *tq_ptr = &t.type_qualifiers[0]; | |
3033 | |
3034 t.orig_type = (coff_type_t) (arg_number & N_BTMASK); | |
3035 t.basic_type = map_coff_types [(int) t.orig_type]; | |
3036 for (i = N_TQ-1; i >= 0; i--) | |
3037 { | |
3038 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT) | |
3039 & N_TMASK); | |
3040 | |
3041 if (dt != (int) DT_NON) | |
3042 *tq_ptr++ = map_coff_derived_type [dt]; | |
3043 } | |
3044 | |
3045 /* If this is a function, ignore it, so that we don't get | |
3046 two entries (one from the .ent, and one for the .def | |
3047 that precedes it). Save the type information so that | |
3048 the end block can properly add it after the begin block | |
3049 index. For MIPS knows what reason, we must strip off | |
3050 the function type at this point. */ | |
3051 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc) | |
3052 { | |
3053 is_function = 1; | |
3054 tq_ptr[-1] = tq_Nil; | |
3055 } | |
3056 | |
3057 break; | |
3058 } | |
3059 | |
3060 else if (len == sizeof (".tag")-1 | |
3061 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0) | |
3062 { | |
3063 tag_start = arg_start; | |
3064 tag_end_p1 = arg_end_p1; | |
3065 break; | |
3066 } | |
3067 | |
3068 else | |
3069 { | |
3070 error_line = __LINE__; | |
3071 saber_stop (); | |
3072 goto bomb_out; | |
3073 } | |
3074 | |
3075 | |
3076 case 'v': | |
3077 if (len == sizeof (".val")-1 | |
3078 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0) | |
3079 { | |
3080 if (arg_was_number) | |
3081 value = arg_number; | |
3082 | |
3083 /* If the value is not an integer value, it must be the | |
3084 name of a static or global item. Look up the name in | |
3085 the original symbol table to pick up the storage | |
3086 class, symbol type, etc. */ | |
3087 else | |
3088 { | |
3089 shash_t *orig_hash_ptr; /* hash within orig sym table*/ | |
3090 shash_t *ext_hash_ptr; /* hash within ext. sym table*/ | |
3091 | |
3092 ext_hash_ptr = hash_string (arg_start, | |
3093 arg_end_p1 - arg_start, | |
3094 &ext_str_hash[0], | |
3095 (symint_t *) 0); | |
3096 | |
3097 if (ext_hash_ptr != (shash_t *) 0 | |
3098 && ext_hash_ptr->esym_ptr != (EXTR *) 0) | |
3099 eptr = ext_hash_ptr->esym_ptr; | |
3100 | |
3101 orig_hash_ptr = hash_string (arg_start, | |
3102 arg_end_p1 - arg_start, | |
3103 &orig_str_hash[0], | |
3104 (symint_t *) 0); | |
3105 | |
3106 if ((orig_hash_ptr == (shash_t *) 0 | |
3107 || orig_hash_ptr->sym_ptr == (SYMR *) 0) | |
3108 && eptr == (EXTR *) 0) | |
3109 { | |
3110 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n", | |
3111 (int) (arg_end_p1 - arg_start), | |
3112 arg_start); | |
3113 value = 0; | |
3114 } | |
3115 else | |
3116 { | |
3117 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0 | |
3118 && orig_hash_ptr->sym_ptr != (SYMR *) 0) | |
3119 ? orig_hash_ptr->sym_ptr | |
3120 : &eptr->asym; | |
3121 | |
3122 symbol_type = (st_t) ptr->st; | |
3123 storage_class = (sc_t) ptr->sc; | |
3124 value = ptr->value; | |
3125 } | |
3126 } | |
3127 break; | |
3128 } | |
3129 else | |
3130 { | |
3131 error_line = __LINE__; | |
3132 saber_stop (); | |
3133 goto bomb_out; | |
3134 } | |
3135 } | |
3136 | |
3137 /* Set up to find next directive. */ | |
3138 dir_start = arg_end_p1 + 1; | |
3139 } | |
3140 | |
3141 | |
3142 if (storage_class == sc_Bits) | |
3143 { | |
3144 t.bitfield = 1; | |
3145 t.extra_sizes = 1; | |
3146 } | |
3147 else | |
3148 t.extra_sizes = 0; | |
3149 | |
3150 if (t.num_dims > 0) | |
3151 { | |
3152 int num_real_sizes = t.num_sizes - t.extra_sizes; | |
3153 int diff = t.num_dims - num_real_sizes; | |
3154 int i = t.num_dims - 1; | |
3155 int j; | |
3156 | |
3157 if (num_real_sizes != 1 || diff < 0) | |
3158 { | |
3159 error_line = __LINE__; | |
3160 saber_stop (); | |
3161 goto bomb_out; | |
3162 } | |
3163 | |
3164 /* If this is an array, make sure the same number of dimensions | |
3165 and sizes were passed, creating extra sizes for multiply | |
3166 dimensioned arrays if not passed. */ | |
3167 | |
3168 if (diff) | |
3169 { | |
3170 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--) | |
3171 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0; | |
3172 | |
3173 t.num_sizes = i + 1; | |
3174 for ( i--; i >= 0; i-- ) | |
3175 { | |
3176 if (t.dimensions[ i+1 ]) | |
3177 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ]; | |
3178 else | |
3179 t.sizes[ i ] = t.sizes[ i+1 ]; | |
3180 } | |
3181 } | |
3182 } | |
3183 | |
3184 /* Except for enumeration members & begin/ending of scopes, put the | |
3185 type word in the aux. symbol table. */ | |
3186 | |
3187 if (symbol_type == st_Block || symbol_type == st_End) | |
3188 indx = 0; | |
3189 | |
3190 else if (inside_enumeration) | |
3191 indx = cur_file_ptr->void_type; | |
3192 | |
3193 else | |
3194 { | |
3195 if (t.basic_type == bt_Struct | |
3196 || t.basic_type == bt_Union | |
3197 || t.basic_type == bt_Enum) | |
3198 { | |
3199 if (tag_start == (char *) 0) | |
3200 { | |
3201 error ("no tag specified for %.*s", | |
3202 (int) (name_end_p1 - name_start), | |
3203 name_start); | |
3204 return; | |
3205 } | |
3206 | |
3207 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil, | |
3208 t.basic_type); | |
3209 } | |
3210 | |
3211 if (is_function) | |
3212 { | |
3213 last_func_type_info = t; | |
3214 last_func_eptr = eptr; | |
3215 return; | |
3216 } | |
3217 | |
3218 indx = add_aux_sym_tir (&t, | |
3219 hash_yes, | |
3220 &cur_file_ptr->thash_head[0]); | |
3221 } | |
3222 | |
3223 | |
3224 /* If this is an external or static symbol, update the appropriate | |
3225 external symbol. */ | |
3226 | |
3227 if (eptr != (EXTR *) 0 | |
3228 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0)) | |
3229 { | |
3230 eptr->ifd = cur_file_ptr->file_index; | |
3231 eptr->asym.index = indx; | |
3232 } | |
3233 | |
3234 | |
3235 /* Do any last minute adjustments that are necessary. */ | |
3236 switch (symbol_type) | |
3237 { | |
3238 default: | |
3239 break; | |
3240 | |
3241 | |
3242 /* For the beginning of structs, unions, and enumerations, the | |
3243 size info needs to be passed in the value field. */ | |
3244 | |
3245 case st_Block: | |
3246 if (t.num_sizes - t.num_dims - t.extra_sizes != 1) | |
3247 { | |
3248 error_line = __LINE__; | |
3249 saber_stop (); | |
3250 goto bomb_out; | |
3251 } | |
3252 | |
3253 else | |
3254 value = t.sizes[0]; | |
3255 | |
3256 inside_enumeration = (t.orig_type == T_ENUM); | |
3257 break; | |
3258 | |
3259 | |
3260 /* For the end of structs, unions, and enumerations, omit the | |
3261 name which is always ".eos". This needs to be done last, so | |
3262 that any error reporting above gives the correct name. */ | |
3263 | |
3264 case st_End: | |
3265 name_start = name_end_p1 = 0; | |
3266 value = inside_enumeration = 0; | |
3267 break; | |
3268 | |
3269 | |
3270 /* Members of structures and unions that aren't bitfields, need | |
3271 to adjust the value from a byte offset to a bit offset. | |
3272 Members of enumerations do not have the value adjusted, and | |
3273 can be distinguished by indx == indexNil. For enumerations, | |
3274 update the maximum enumeration value. */ | |
3275 | |
3276 case st_Member: | |
3277 if (!t.bitfield && !inside_enumeration) | |
3278 value *= 8; | |
3279 | |
3280 break; | |
3281 } | |
3282 | |
3283 | |
3284 /* Add the symbol, except for global symbols outside of functions, | |
3285 for which the external symbol table is fine enough. */ | |
3286 | |
3287 if (eptr == (EXTR *) 0 | |
3288 || eptr->asym.st == (int) st_Nil | |
3289 || cur_proc_ptr != (PDR *) 0) | |
3290 { | |
3291 symint_t isym = add_local_symbol (name_start, name_end_p1, | |
3292 symbol_type, storage_class, | |
3293 value, | |
3294 indx); | |
3295 | |
3296 /* Deal with struct, union, and enum tags. */ | |
3297 if (symbol_type == st_Block) | |
3298 { | |
3299 /* Create or update the tag information. */ | |
3300 tag_t *tag_ptr = get_tag (name_start, | |
3301 name_end_p1, | |
3302 isym, | |
3303 t.basic_type); | |
3304 | |
3305 /* If there are any forward references, fill in the appropriate | |
3306 file and symbol indexes. */ | |
3307 | |
3308 symint_t file_index = cur_file_ptr->file_index; | |
3309 forward_t *f_next = tag_ptr->forward_ref; | |
3310 forward_t *f_cur; | |
3311 | |
3312 while (f_next != (forward_t *) 0) | |
3313 { | |
3314 f_cur = f_next; | |
3315 f_next = f_next->next; | |
3316 | |
3317 f_cur->ifd_ptr->isym = file_index; | |
3318 f_cur->index_ptr->rndx.index = isym; | |
3319 | |
3320 free_forward (f_cur); | |
3321 } | |
3322 | |
3323 tag_ptr->forward_ref = (forward_t *) 0; | |
3324 } | |
3325 } | |
3326 | |
3327 /* Normal return */ | |
3328 return; | |
3329 | |
3330 /* Error return, issue message. */ | |
3331 bomb_out: | |
3332 if (error_line) | |
3333 error ("compiler error, badly formed #.def (internal line # = %d)", error_line); | |
3334 else | |
3335 error ("compiler error, badly formed #.def"); | |
3336 | |
3337 return; | |
3338 } | |
3339 | |
3340 | |
3341 /* Parse .end directives. */ | |
3342 | |
3343 STATIC void | |
3344 parse_end (const char *start) | |
3345 { | |
3346 const char *start_func, *end_func_p1; | |
3347 int ch; | |
3348 symint_t value; | |
3349 FDR *orig_fdr; | |
3350 | |
3351 if (cur_file_ptr == (efdr_t *) 0) | |
3352 { | |
3353 error (".end directive without a preceding .file directive"); | |
3354 return; | |
3355 } | |
3356 | |
3357 if (cur_proc_ptr == (PDR *) 0) | |
3358 { | |
3359 error (".end directive without a preceding .ent directive"); | |
3360 return; | |
3361 } | |
3362 | |
3363 /* Get the function name, skipping whitespace. */ | |
3364 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) | |
3365 ; | |
3366 | |
3367 ch = *start_func; | |
3368 if (!IS_ASM_IDENT (ch)) | |
3369 { | |
3370 error (".end directive has no name"); | |
3371 return; | |
3372 } | |
3373 | |
3374 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) | |
3375 ; | |
3376 | |
3377 | |
3378 /* Get the value field for creating the end from the original object | |
3379 file (which we find by locating the procedure start, and using the | |
3380 pointer to the end+1 block and backing up. The index points to a | |
3381 two word aux. symbol, whose first word is the index of the end | |
3382 symbol, and the second word is the type of the function return | |
3383 value. */ | |
3384 | |
3385 orig_fdr = cur_file_ptr->orig_fdr; | |
3386 value = 0; | |
3387 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0) | |
3388 value = cur_oproc_end->value; | |
3389 | |
3390 else | |
3391 error ("cannot find .end block for %.*s", | |
3392 (int) (end_func_p1 - start_func), start_func); | |
3393 | |
3394 (void) add_local_symbol (start_func, end_func_p1, | |
3395 st_End, sc_Text, | |
3396 value, | |
3397 (symint_t) 0); | |
3398 | |
3399 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0; | |
3400 } | |
3401 | |
3402 | |
3403 /* Parse .ent directives. */ | |
3404 | |
3405 STATIC void | |
3406 parse_ent (const char *start) | |
3407 { | |
3408 const char *start_func, *end_func_p1; | |
3409 int ch; | |
3410 | |
3411 if (cur_file_ptr == (efdr_t *) 0) | |
3412 { | |
3413 error (".ent directive without a preceding .file directive"); | |
3414 return; | |
3415 } | |
3416 | |
3417 if (cur_proc_ptr != (PDR *) 0) | |
3418 { | |
3419 error ("second .ent directive found before .end directive"); | |
3420 return; | |
3421 } | |
3422 | |
3423 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) | |
3424 ; | |
3425 | |
3426 ch = *start_func; | |
3427 if (!IS_ASM_IDENT (ch)) | |
3428 { | |
3429 error (".ent directive has no name"); | |
3430 return; | |
3431 } | |
3432 | |
3433 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) | |
3434 ; | |
3435 | |
3436 (void) add_procedure (start_func, end_func_p1); | |
3437 } | |
3438 | |
3439 | |
3440 /* Parse .file directives. */ | |
3441 | |
3442 STATIC void | |
3443 parse_file (const char *start) | |
3444 { | |
3445 char *p; | |
3446 char *start_name, *end_name_p1; | |
3447 | |
3448 (void) strtol (start, &p, 0); | |
3449 if (start == p | |
3450 || (start_name = strchr (p, '"')) == (char *) 0 | |
3451 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0) | |
3452 { | |
3453 error ("invalid .file directive"); | |
3454 return; | |
3455 } | |
3456 | |
3457 if (cur_proc_ptr != (PDR *) 0) | |
3458 { | |
3459 error ("no way to handle .file within .ent/.end section"); | |
3460 return; | |
3461 } | |
3462 | |
3463 add_file (start_name, end_name_p1); | |
3464 } | |
3465 | |
3466 | |
3467 /* Make sure the @stabs symbol is emitted. */ | |
3468 | |
3469 static void | |
3470 mark_stabs (const char *start ATTRIBUTE_UNUSED) | |
3471 { | |
3472 if (!stabs_seen) | |
3473 { | |
3474 /* Add a dummy @stabs symbol. */ | |
3475 stabs_seen = 1; | |
3476 (void) add_local_symbol (stabs_symbol, | |
3477 stabs_symbol + sizeof (stabs_symbol), | |
3478 stNil, scInfo, -1, MIPS_MARK_STAB (0)); | |
3479 | |
3480 } | |
3481 } | |
3482 | |
3483 | |
3484 /* Parse .stabs directives. | |
3485 | |
3486 .stabs directives have five fields: | |
3487 "string" a string, encoding the type information. | |
3488 code a numeric code, defined in <stab.h> | |
3489 0 a zero | |
3490 0 a zero or line number | |
3491 value a numeric value or an address. | |
3492 | |
3493 If the value is relocatable, we transform this into: | |
3494 iss points as an index into string space | |
3495 value value from lookup of the name | |
3496 st st from lookup of the name | |
3497 sc sc from lookup of the name | |
3498 index code|CODE_MASK | |
3499 | |
3500 If the value is not relocatable, we transform this into: | |
3501 iss points as an index into string space | |
3502 value value | |
3503 st st_Nil | |
3504 sc sc_Nil | |
3505 index code|CODE_MASK | |
3506 | |
3507 .stabn directives have four fields (string is null): | |
3508 code a numeric code, defined in <stab.h> | |
3509 0 a zero | |
3510 0 a zero or a line number | |
3511 value a numeric value or an address. */ | |
3512 | |
3513 STATIC void | |
3514 parse_stabs_common (const char *string_start, /* start of string or NULL */ | |
3515 const char *string_end, /* end+1 of string or NULL */ | |
3516 const char *rest) /* rest of the directive. */ | |
3517 { | |
3518 efdr_t *save_file_ptr = cur_file_ptr; | |
3519 symint_t code; | |
3520 symint_t value; | |
3521 char *p; | |
3522 st_t st; | |
3523 sc_t sc; | |
3524 int ch; | |
3525 | |
3526 if (stabs_seen == 0) | |
3527 mark_stabs (""); | |
3528 | |
3529 /* Read code from stabs. */ | |
3530 if (!ISDIGIT (*rest)) | |
3531 { | |
3532 error ("invalid .stabs/.stabn directive, code is non-numeric"); | |
3533 return; | |
3534 } | |
3535 | |
3536 code = strtol (rest, &p, 0); | |
3537 | |
3538 /* Line number stabs are handled differently, since they have two values, | |
3539 the line number and the address of the label. We use the index field | |
3540 (aka code) to hold the line number, and the value field to hold the | |
3541 address. The symbol type is st_Label, which should be different from | |
3542 the other stabs, so that gdb can recognize it. */ | |
3543 | |
3544 if (code == (int) N_SLINE) | |
3545 { | |
3546 SYMR *sym_ptr, dummy_symr; | |
3547 shash_t *shash_ptr; | |
3548 | |
3549 /* Skip ,0, */ | |
3550 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3])) | |
3551 { | |
3552 error ("invalid line number .stabs/.stabn directive"); | |
3553 return; | |
3554 } | |
3555 | |
3556 code = strtol (p+3, &p, 0); | |
3557 ch = *++p; | |
3558 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch)) | |
3559 { | |
3560 error ("invalid line number .stabs/.stabn directive"); | |
3561 return; | |
3562 } | |
3563 | |
3564 dummy_symr.index = code; | |
3565 if (dummy_symr.index != code) | |
3566 { | |
3567 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)", | |
3568 code); | |
3569 | |
3570 return; | |
3571 } | |
3572 | |
3573 shash_ptr = hash_string (p, | |
3574 strlen (p) - 1, | |
3575 &orig_str_hash[0], | |
3576 (symint_t *) 0); | |
3577 | |
3578 if (shash_ptr == (shash_t *) 0 | |
3579 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) | |
3580 { | |
3581 error ("invalid .stabs/.stabn directive, value not found"); | |
3582 return; | |
3583 } | |
3584 | |
3585 if ((st_t) sym_ptr->st != st_Label) | |
3586 { | |
3587 error ("invalid line number .stabs/.stabn directive"); | |
3588 return; | |
3589 } | |
3590 | |
3591 st = st_Label; | |
3592 sc = (sc_t) sym_ptr->sc; | |
3593 value = sym_ptr->value; | |
3594 } | |
3595 else | |
3596 { | |
3597 /* Skip ,<num>,<num>, */ | |
3598 if (*p++ != ',') | |
3599 goto failure; | |
3600 for (; ISDIGIT (*p); p++) | |
3601 ; | |
3602 if (*p++ != ',') | |
3603 goto failure; | |
3604 for (; ISDIGIT (*p); p++) | |
3605 ; | |
3606 if (*p++ != ',') | |
3607 goto failure; | |
3608 ch = *p; | |
3609 if (!IS_ASM_IDENT (ch) && ch != '-') | |
3610 { | |
3611 failure: | |
3612 error ("invalid .stabs/.stabn directive, bad character"); | |
3613 return; | |
3614 } | |
3615 | |
3616 if (ISDIGIT (ch) || ch == '-') | |
3617 { | |
3618 st = st_Nil; | |
3619 sc = sc_Nil; | |
3620 value = strtol (p, &p, 0); | |
3621 if (*p != '\n') | |
3622 { | |
3623 error ("invalid .stabs/.stabn directive, stuff after numeric value"); | |
3624 return; | |
3625 } | |
3626 } | |
3627 else if (!IS_ASM_IDENT (ch)) | |
3628 { | |
3629 error ("invalid .stabs/.stabn directive, bad character"); | |
3630 return; | |
3631 } | |
3632 else | |
3633 { | |
3634 SYMR *sym_ptr; | |
3635 shash_t *shash_ptr; | |
3636 const char *start, *end_p1; | |
3637 | |
3638 start = p; | |
3639 if ((end_p1 = strchr (start, '+')) == (char *) 0) | |
3640 { | |
3641 if ((end_p1 = strchr (start, '-')) == (char *) 0) | |
3642 end_p1 = start + strlen (start) - 1; | |
3643 } | |
3644 | |
3645 shash_ptr = hash_string (start, | |
3646 end_p1 - start, | |
3647 &orig_str_hash[0], | |
3648 (symint_t *) 0); | |
3649 | |
3650 if (shash_ptr == (shash_t *) 0 | |
3651 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) | |
3652 { | |
3653 shash_ptr = hash_string (start, | |
3654 end_p1 - start, | |
3655 &ext_str_hash[0], | |
3656 (symint_t *) 0); | |
3657 | |
3658 if (shash_ptr == (shash_t *) 0 | |
3659 || shash_ptr->esym_ptr == (EXTR *) 0) | |
3660 { | |
3661 error ("invalid .stabs/.stabn directive, value not found"); | |
3662 return; | |
3663 } | |
3664 else | |
3665 sym_ptr = &(shash_ptr->esym_ptr->asym); | |
3666 } | |
3667 | |
3668 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */ | |
3669 if (code == (int) N_LBRAC || code == (int) N_RBRAC) | |
3670 { | |
3671 sc = scNil; | |
3672 st = stNil; | |
3673 } | |
3674 else | |
3675 { | |
3676 sc = (sc_t) sym_ptr->sc; | |
3677 st = (st_t) sym_ptr->st; | |
3678 } | |
3679 value = sym_ptr->value; | |
3680 | |
3681 ch = *end_p1++; | |
3682 if (ch != '\n') | |
3683 { | |
3684 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-')) | |
3685 || ((ch != '+') && (ch != '-'))) | |
3686 { | |
3687 error ("invalid .stabs/.stabn directive, badly formed value"); | |
3688 return; | |
3689 } | |
3690 if (ch == '+') | |
3691 value += strtol (end_p1, &p, 0); | |
3692 else if (ch == '-') | |
3693 value -= strtol (end_p1, &p, 0); | |
3694 | |
3695 if (*p != '\n') | |
3696 { | |
3697 error ("invalid .stabs/.stabn directive, stuff after numeric value"); | |
3698 return; | |
3699 } | |
3700 } | |
3701 } | |
3702 code = MIPS_MARK_STAB (code); | |
3703 } | |
3704 | |
3705 (void) add_local_symbol (string_start, string_end, st, sc, value, code); | |
3706 /* Restore normal file type. */ | |
3707 cur_file_ptr = save_file_ptr; | |
3708 } | |
3709 | |
3710 | |
3711 STATIC void | |
3712 parse_stabs (const char *start) | |
3713 { | |
3714 const char *end = strchr (start+1, '"'); | |
3715 | |
3716 if (*start != '"' || end == (const char *) 0 || end[1] != ',') | |
3717 { | |
3718 error ("invalid .stabs directive, no string"); | |
3719 return; | |
3720 } | |
3721 | |
3722 parse_stabs_common (start+1, end, end+2); | |
3723 } | |
3724 | |
3725 | |
3726 STATIC void | |
3727 parse_stabn (const char *start) | |
3728 { | |
3729 parse_stabs_common ((const char *) 0, (const char *) 0, start); | |
3730 } | |
3731 | |
3732 | |
3733 /* Parse the input file, and write the lines to the output file | |
3734 if needed. */ | |
3735 | |
3736 STATIC void | |
3737 parse_input (void) | |
3738 { | |
3739 char *p; | |
3740 Size_t i; | |
3741 thead_t *ptag_head; | |
3742 tag_t *ptag; | |
3743 tag_t *ptag_next; | |
3744 | |
3745 if (debug) | |
3746 fprintf (stderr, "\tinput\n"); | |
3747 | |
3748 /* Add a dummy scope block around the entire compilation unit for | |
3749 structures defined outside of blocks. */ | |
3750 ptag_head = allocate_thead (); | |
3751 ptag_head->first_tag = 0; | |
3752 ptag_head->prev = cur_tag_head; | |
3753 cur_tag_head = ptag_head; | |
3754 | |
3755 while ((p = read_line ()) != (char *) 0) | |
3756 { | |
3757 /* Skip leading blanks. */ | |
3758 while (ISSPACE ((unsigned char)*p)) | |
3759 p++; | |
3760 | |
3761 /* See if it's a directive we handle. If so, dispatch handler. */ | |
3762 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++) | |
3763 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0 | |
3764 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len]))) | |
3765 { | |
3766 p += pseudo_ops[i].len; /* skip to first argument */ | |
3767 while (ISSPACE ((unsigned char)*p)) | |
3768 p++; | |
3769 | |
3770 (*pseudo_ops[i].func)( p ); | |
3771 break; | |
3772 } | |
3773 } | |
3774 | |
3775 /* Process any tags at global level. */ | |
3776 ptag_head = cur_tag_head; | |
3777 cur_tag_head = ptag_head->prev; | |
3778 | |
3779 for (ptag = ptag_head->first_tag; | |
3780 ptag != (tag_t *) 0; | |
3781 ptag = ptag_next) | |
3782 { | |
3783 if (ptag->forward_ref != (forward_t *) 0) | |
3784 add_unknown_tag (ptag); | |
3785 | |
3786 ptag_next = ptag->same_block; | |
3787 ptag->hash_ptr->tag_ptr = ptag->same_name; | |
3788 free_tag (ptag); | |
3789 } | |
3790 | |
3791 free_thead (ptag_head); | |
3792 | |
3793 } | |
3794 | |
3795 | |
3796 /* Update the global headers with the final offsets in preparation | |
3797 to write out the .T file. */ | |
3798 | |
3799 STATIC void | |
3800 update_headers (void) | |
3801 { | |
3802 symint_t i; | |
3803 efdr_t *file_ptr; | |
3804 | |
3805 /* Set up the symbolic header. */ | |
3806 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; | |
3807 symbolic_header.magic = orig_sym_hdr.magic; | |
3808 symbolic_header.vstamp = orig_sym_hdr.vstamp; | |
3809 | |
3810 /* Set up global counts. */ | |
3811 symbolic_header.issExtMax = ext_strings.num_allocated; | |
3812 symbolic_header.idnMax = dense_num.num_allocated; | |
3813 symbolic_header.ifdMax = file_desc.num_allocated; | |
3814 symbolic_header.iextMax = ext_symbols.num_allocated; | |
3815 symbolic_header.ilineMax = orig_sym_hdr.ilineMax; | |
3816 symbolic_header.ioptMax = orig_sym_hdr.ioptMax; | |
3817 symbolic_header.cbLine = orig_sym_hdr.cbLine; | |
3818 symbolic_header.crfd = orig_sym_hdr.crfd; | |
3819 | |
3820 | |
3821 /* Loop through each file, figuring out how many local syms, | |
3822 line numbers, etc. there are. Also, put out end symbol | |
3823 for the filename. */ | |
3824 | |
3825 for (file_ptr = first_file; | |
3826 file_ptr != (efdr_t *) 0; | |
3827 file_ptr = file_ptr->next_file) | |
3828 { | |
3829 SYMR *sym_start; | |
3830 SYMR *sym; | |
3831 SYMR *sym_end_p1; | |
3832 FDR *fd_ptr = file_ptr->orig_fdr; | |
3833 | |
3834 cur_file_ptr = file_ptr; | |
3835 | |
3836 /* Copy st_Static symbols from the original local symbol table if | |
3837 they did not get added to the new local symbol table. | |
3838 This happens with stabs-in-ecoff or if the source file is | |
3839 compiled without debugging. */ | |
3840 sym_start = ORIG_LSYMS (fd_ptr->isymBase); | |
3841 sym_end_p1 = sym_start + fd_ptr->csym; | |
3842 for (sym = sym_start; sym < sym_end_p1; sym++) | |
3843 { | |
3844 if ((st_t) sym->st == st_Static) | |
3845 { | |
3846 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); | |
3847 Size_t len = strlen (str); | |
3848 shash_t *hash_ptr; | |
3849 | |
3850 /* Ignore internal labels. */ | |
3851 if (str[0] == '$' && str[1] == 'L') | |
3852 continue; | |
3853 hash_ptr = hash_string (str, | |
3854 (Ptrdiff_t) len, | |
3855 &file_ptr->shash_head[0], | |
3856 (symint_t *) 0); | |
3857 if (hash_ptr == (shash_t *) 0) | |
3858 { | |
3859 (void) add_local_symbol (str, str + len, | |
3860 (st_t) sym->st, (sc_t) sym->sc, | |
3861 (symint_t) sym->value, | |
3862 (symint_t) indexNil); | |
3863 } | |
3864 } | |
3865 } | |
3866 (void) add_local_symbol ((const char *) 0, (const char *) 0, | |
3867 st_End, sc_Text, | |
3868 (symint_t) 0, | |
3869 (symint_t) 0); | |
3870 | |
3871 file_ptr->fdr.cpd = file_ptr->procs.num_allocated; | |
3872 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax; | |
3873 symbolic_header.ipdMax += file_ptr->fdr.cpd; | |
3874 | |
3875 file_ptr->fdr.csym = file_ptr->symbols.num_allocated; | |
3876 file_ptr->fdr.isymBase = symbolic_header.isymMax; | |
3877 symbolic_header.isymMax += file_ptr->fdr.csym; | |
3878 | |
3879 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated; | |
3880 file_ptr->fdr.iauxBase = symbolic_header.iauxMax; | |
3881 symbolic_header.iauxMax += file_ptr->fdr.caux; | |
3882 | |
3883 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated; | |
3884 file_ptr->fdr.issBase = symbolic_header.issMax; | |
3885 symbolic_header.issMax += file_ptr->fdr.cbSs; | |
3886 } | |
3887 | |
3888 #ifndef ALIGN_SYMTABLE_OFFSET | |
3889 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET) | |
3890 #endif | |
3891 | |
3892 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3893 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */ | |
3894 if (i > 0) | |
3895 { | |
3896 symbolic_header.cbLineOffset = file_offset; | |
3897 file_offset += i; | |
3898 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3899 } | |
3900 | |
3901 i = symbolic_header.ioptMax; /* optimization symbols */ | |
3902 if (((long) i) > 0) | |
3903 { | |
3904 symbolic_header.cbOptOffset = file_offset; | |
3905 file_offset += i * sizeof (OPTR); | |
3906 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3907 } | |
3908 | |
3909 i = symbolic_header.idnMax; /* dense numbers */ | |
3910 if (i > 0) | |
3911 { | |
3912 symbolic_header.cbDnOffset = file_offset; | |
3913 file_offset += i * sizeof (DNR); | |
3914 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3915 } | |
3916 | |
3917 i = symbolic_header.ipdMax; /* procedure tables */ | |
3918 if (i > 0) | |
3919 { | |
3920 symbolic_header.cbPdOffset = file_offset; | |
3921 file_offset += i * sizeof (PDR); | |
3922 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3923 } | |
3924 | |
3925 i = symbolic_header.isymMax; /* local symbols */ | |
3926 if (i > 0) | |
3927 { | |
3928 symbolic_header.cbSymOffset = file_offset; | |
3929 file_offset += i * sizeof (SYMR); | |
3930 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3931 } | |
3932 | |
3933 i = symbolic_header.iauxMax; /* aux syms. */ | |
3934 if (i > 0) | |
3935 { | |
3936 symbolic_header.cbAuxOffset = file_offset; | |
3937 file_offset += i * sizeof (TIR); | |
3938 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3939 } | |
3940 | |
3941 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */ | |
3942 if (i > 0) | |
3943 { | |
3944 symbolic_header.cbSsOffset = file_offset; | |
3945 file_offset += i; | |
3946 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3947 } | |
3948 | |
3949 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */ | |
3950 if (i > 0) | |
3951 { | |
3952 symbolic_header.cbSsExtOffset = file_offset; | |
3953 file_offset += i; | |
3954 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3955 } | |
3956 | |
3957 i = symbolic_header.ifdMax; /* file tables */ | |
3958 if (i > 0) | |
3959 { | |
3960 symbolic_header.cbFdOffset = file_offset; | |
3961 file_offset += i * sizeof (FDR); | |
3962 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3963 } | |
3964 | |
3965 i = symbolic_header.crfd; /* relative file descriptors */ | |
3966 if (i > 0) | |
3967 { | |
3968 symbolic_header.cbRfdOffset = file_offset; | |
3969 file_offset += i * sizeof (symint_t); | |
3970 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3971 } | |
3972 | |
3973 i = symbolic_header.iextMax; /* external symbols */ | |
3974 if (i > 0) | |
3975 { | |
3976 symbolic_header.cbExtOffset = file_offset; | |
3977 file_offset += i * sizeof (EXTR); | |
3978 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); | |
3979 } | |
3980 } | |
3981 | |
3982 | |
3983 /* Write out a varray at a given location. */ | |
3984 | |
3985 STATIC void | |
3986 write_varray (varray_t *vp, /* virtual array */ | |
3987 off_t offset, /* offset to write varray to */ | |
3988 const char *str) /* string to print out when tracing */ | |
3989 { | |
3990 int num_write, sys_write; | |
3991 vlinks_t *ptr; | |
3992 | |
3993 if (vp->num_allocated == 0) | |
3994 return; | |
3995 | |
3996 if (debug) | |
3997 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n", | |
3998 (void *) vp, (unsigned long) offset, | |
3999 vp->num_allocated * vp->object_size, str); | |
4000 | |
4001 if (file_offset != (unsigned long) offset | |
4002 && fseek (object_stream, (long) offset, SEEK_SET) < 0) | |
4003 pfatal_with_name (object_name); | |
4004 | |
4005 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next) | |
4006 { | |
4007 num_write = (ptr->next == (vlinks_t *) 0) | |
4008 ? vp->objects_last_page * vp->object_size | |
4009 : vp->objects_per_page * vp->object_size; | |
4010 | |
4011 sys_write = fwrite (ptr->datum, 1, num_write, object_stream); | |
4012 if (sys_write <= 0) | |
4013 pfatal_with_name (object_name); | |
4014 | |
4015 else if (sys_write != num_write) | |
4016 fatal ("wrote %d bytes to %s, system returned %d", | |
4017 num_write, | |
4018 object_name, | |
4019 sys_write); | |
4020 | |
4021 file_offset += num_write; | |
4022 } | |
4023 } | |
4024 | |
4025 | |
4026 /* Write out the symbol table in the object file. */ | |
4027 | |
4028 STATIC void | |
4029 write_object (void) | |
4030 { | |
4031 int sys_write; | |
4032 efdr_t *file_ptr; | |
4033 off_t offset; | |
4034 | |
4035 if (debug) | |
4036 fprintf (stderr, "\n\twrite\tvp = %p, offset = %7u, size = %7lu, %s\n", | |
4037 (void *) &symbolic_header, 0, | |
4038 (unsigned long) sizeof (symbolic_header), "symbolic header"); | |
4039 | |
4040 sys_write = fwrite (&symbolic_header, | |
4041 1, | |
4042 sizeof (symbolic_header), | |
4043 object_stream); | |
4044 | |
4045 if (sys_write < 0) | |
4046 pfatal_with_name (object_name); | |
4047 | |
4048 else if (sys_write != sizeof (symbolic_header)) | |
4049 fatal ("wrote %d bytes to %s, system returned %d", | |
4050 (int) sizeof (symbolic_header), | |
4051 object_name, | |
4052 sys_write); | |
4053 | |
4054 | |
4055 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; | |
4056 | |
4057 if (symbolic_header.cbLine > 0) /* line numbers */ | |
4058 { | |
4059 long sys_write; | |
4060 | |
4061 if (file_offset != (unsigned long) symbolic_header.cbLineOffset | |
4062 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0) | |
4063 pfatal_with_name (object_name); | |
4064 | |
4065 if (debug) | |
4066 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", | |
4067 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset, | |
4068 (long) symbolic_header.cbLine, "Line numbers"); | |
4069 | |
4070 sys_write = fwrite (orig_linenum, | |
4071 1, | |
4072 symbolic_header.cbLine, | |
4073 object_stream); | |
4074 | |
4075 if (sys_write <= 0) | |
4076 pfatal_with_name (object_name); | |
4077 | |
4078 else if (sys_write != symbolic_header.cbLine) | |
4079 fatal ("wrote %ld bytes to %s, system returned %ld", | |
4080 (long) symbolic_header.cbLine, | |
4081 object_name, | |
4082 sys_write); | |
4083 | |
4084 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine; | |
4085 } | |
4086 | |
4087 if (symbolic_header.ioptMax > 0) /* optimization symbols */ | |
4088 { | |
4089 long sys_write; | |
4090 long num_write = symbolic_header.ioptMax * sizeof (OPTR); | |
4091 | |
4092 if (file_offset != (unsigned long) symbolic_header.cbOptOffset | |
4093 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0) | |
4094 pfatal_with_name (object_name); | |
4095 | |
4096 if (debug) | |
4097 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", | |
4098 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset, | |
4099 num_write, "Optimizer symbols"); | |
4100 | |
4101 sys_write = fwrite (orig_opt_syms, | |
4102 1, | |
4103 num_write, | |
4104 object_stream); | |
4105 | |
4106 if (sys_write <= 0) | |
4107 pfatal_with_name (object_name); | |
4108 | |
4109 else if (sys_write != num_write) | |
4110 fatal ("wrote %ld bytes to %s, system returned %ld", | |
4111 num_write, | |
4112 object_name, | |
4113 sys_write); | |
4114 | |
4115 file_offset = symbolic_header.cbOptOffset + num_write; | |
4116 } | |
4117 | |
4118 if (symbolic_header.idnMax > 0) /* dense numbers */ | |
4119 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers"); | |
4120 | |
4121 if (symbolic_header.ipdMax > 0) /* procedure tables */ | |
4122 { | |
4123 offset = symbolic_header.cbPdOffset; | |
4124 for (file_ptr = first_file; | |
4125 file_ptr != (efdr_t *) 0; | |
4126 file_ptr = file_ptr->next_file) | |
4127 { | |
4128 write_varray (&file_ptr->procs, offset, "Procedure tables"); | |
4129 offset = file_offset; | |
4130 } | |
4131 } | |
4132 | |
4133 if (symbolic_header.isymMax > 0) /* local symbols */ | |
4134 { | |
4135 offset = symbolic_header.cbSymOffset; | |
4136 for (file_ptr = first_file; | |
4137 file_ptr != (efdr_t *) 0; | |
4138 file_ptr = file_ptr->next_file) | |
4139 { | |
4140 write_varray (&file_ptr->symbols, offset, "Local symbols"); | |
4141 offset = file_offset; | |
4142 } | |
4143 } | |
4144 | |
4145 if (symbolic_header.iauxMax > 0) /* aux symbols */ | |
4146 { | |
4147 offset = symbolic_header.cbAuxOffset; | |
4148 for (file_ptr = first_file; | |
4149 file_ptr != (efdr_t *) 0; | |
4150 file_ptr = file_ptr->next_file) | |
4151 { | |
4152 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols"); | |
4153 offset = file_offset; | |
4154 } | |
4155 } | |
4156 | |
4157 if (symbolic_header.issMax > 0) /* local strings */ | |
4158 { | |
4159 offset = symbolic_header.cbSsOffset; | |
4160 for (file_ptr = first_file; | |
4161 file_ptr != (efdr_t *) 0; | |
4162 file_ptr = file_ptr->next_file) | |
4163 { | |
4164 write_varray (&file_ptr->strings, offset, "Local strings"); | |
4165 offset = file_offset; | |
4166 } | |
4167 } | |
4168 | |
4169 if (symbolic_header.issExtMax > 0) /* external strings */ | |
4170 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings"); | |
4171 | |
4172 if (symbolic_header.ifdMax > 0) /* file tables */ | |
4173 { | |
4174 offset = symbolic_header.cbFdOffset; | |
4175 if (file_offset != (unsigned long) offset | |
4176 && fseek (object_stream, (long) offset, SEEK_SET) < 0) | |
4177 pfatal_with_name (object_name); | |
4178 | |
4179 file_offset = offset; | |
4180 for (file_ptr = first_file; | |
4181 file_ptr != (efdr_t *) 0; | |
4182 file_ptr = file_ptr->next_file) | |
4183 { | |
4184 if (debug) | |
4185 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", | |
4186 (void *) &file_ptr->fdr, file_offset, | |
4187 (unsigned long) sizeof (FDR), "File header"); | |
4188 | |
4189 sys_write = fwrite (&file_ptr->fdr, | |
4190 1, | |
4191 sizeof (FDR), | |
4192 object_stream); | |
4193 | |
4194 if (sys_write < 0) | |
4195 pfatal_with_name (object_name); | |
4196 | |
4197 else if (sys_write != sizeof (FDR)) | |
4198 fatal ("wrote %d bytes to %s, system returned %d", | |
4199 (int) sizeof (FDR), | |
4200 object_name, | |
4201 sys_write); | |
4202 | |
4203 file_offset = offset += sizeof (FDR); | |
4204 } | |
4205 } | |
4206 | |
4207 if (symbolic_header.crfd > 0) /* relative file descriptors */ | |
4208 { | |
4209 long sys_write; | |
4210 symint_t num_write = symbolic_header.crfd * sizeof (symint_t); | |
4211 | |
4212 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset | |
4213 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0) | |
4214 pfatal_with_name (object_name); | |
4215 | |
4216 if (debug) | |
4217 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", | |
4218 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset, | |
4219 num_write, "Relative file descriptors"); | |
4220 | |
4221 sys_write = fwrite (orig_rfds, | |
4222 1, | |
4223 num_write, | |
4224 object_stream); | |
4225 | |
4226 if (sys_write <= 0) | |
4227 pfatal_with_name (object_name); | |
4228 | |
4229 else if (sys_write != (long) num_write) | |
4230 fatal ("wrote %lu bytes to %s, system returned %ld", | |
4231 num_write, | |
4232 object_name, | |
4233 sys_write); | |
4234 | |
4235 file_offset = symbolic_header.cbRfdOffset + num_write; | |
4236 } | |
4237 | |
4238 if (symbolic_header.issExtMax > 0) /* external symbols */ | |
4239 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols"); | |
4240 | |
4241 if (fclose (object_stream) != 0) | |
4242 pfatal_with_name (object_name); | |
4243 } | |
4244 | |
4245 | |
4246 /* Read some bytes at a specified location, and return a pointer. */ | |
4247 | |
4248 STATIC page_t * | |
4249 read_seek (Size_t size, /* # bytes to read */ | |
4250 off_t offset, /* offset to read at */ | |
4251 const char *str) /* name for tracing */ | |
4252 { | |
4253 page_t *ptr; | |
4254 long sys_read = 0; | |
4255 | |
4256 if (size == 0) /* nothing to read */ | |
4257 return (page_t *) 0; | |
4258 | |
4259 if (debug) | |
4260 fprintf (stderr, | |
4261 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n", | |
4262 (unsigned long) size, (unsigned long) offset, file_offset, str); | |
4263 | |
4264 #ifndef MALLOC_CHECK | |
4265 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE); | |
4266 #else | |
4267 ptr = xcalloc (1, size); | |
4268 #endif | |
4269 | |
4270 /* If we need to seek, and the distance is nearby, just do some reads, | |
4271 to speed things up. */ | |
4272 if (file_offset != (unsigned long) offset) | |
4273 { | |
4274 symint_t difference = offset - file_offset; | |
4275 | |
4276 if (difference < 8) | |
4277 { | |
4278 char small_buffer[8]; | |
4279 | |
4280 sys_read = fread (small_buffer, 1, difference, obj_in_stream); | |
4281 if (sys_read <= 0) | |
4282 pfatal_with_name (obj_in_name); | |
4283 | |
4284 if ((symint_t) sys_read != difference) | |
4285 fatal ("wanted to read %lu bytes from %s, system returned %ld", | |
4286 (unsigned long) size, | |
4287 obj_in_name, | |
4288 sys_read); | |
4289 } | |
4290 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0) | |
4291 pfatal_with_name (obj_in_name); | |
4292 } | |
4293 | |
4294 sys_read = fread (ptr, 1, size, obj_in_stream); | |
4295 if (sys_read <= 0) | |
4296 pfatal_with_name (obj_in_name); | |
4297 | |
4298 if (sys_read != (long) size) | |
4299 fatal ("wanted to read %lu bytes from %s, system returned %ld", | |
4300 (unsigned long) size, | |
4301 obj_in_name, | |
4302 sys_read); | |
4303 | |
4304 file_offset = offset + size; | |
4305 | |
4306 if (file_offset > max_file_offset) | |
4307 max_file_offset = file_offset; | |
4308 | |
4309 return ptr; | |
4310 } | |
4311 | |
4312 | |
4313 /* Read the existing object file (and copy to the output object file | |
4314 if it is different from the input object file), and remove the old | |
4315 symbol table. */ | |
4316 | |
4317 STATIC void | |
4318 copy_object (void) | |
4319 { | |
4320 char buffer[ PAGE_SIZE ]; | |
4321 int sys_read; | |
4322 int remaining; | |
4323 int num_write; | |
4324 int sys_write; | |
4325 int fd, es; | |
4326 int delete_ifd = 0; | |
4327 int *remap_file_number; | |
4328 struct stat stat_buf; | |
4329 | |
4330 if (debug) | |
4331 fprintf (stderr, "\tcopy\n"); | |
4332 | |
4333 if (fstat (fileno (obj_in_stream), &stat_buf) != 0 | |
4334 || fseek (obj_in_stream, 0L, SEEK_SET) != 0) | |
4335 pfatal_with_name (obj_in_name); | |
4336 | |
4337 sys_read = fread (&orig_file_header, | |
4338 1, | |
4339 sizeof (struct filehdr), | |
4340 obj_in_stream); | |
4341 | |
4342 if (sys_read < 0) | |
4343 pfatal_with_name (obj_in_name); | |
4344 | |
4345 else if (sys_read == 0 && feof (obj_in_stream)) | |
4346 return; /* create a .T file sans file header */ | |
4347 | |
4348 else if (sys_read < (int) sizeof (struct filehdr)) | |
4349 fatal ("wanted to read %d bytes from %s, system returned %d", | |
4350 (int) sizeof (struct filehdr), | |
4351 obj_in_name, | |
4352 sys_read); | |
4353 | |
4354 | |
4355 if (orig_file_header.f_nsyms != sizeof (HDRR)) | |
4356 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)", | |
4357 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR)); | |
4358 | |
4359 | |
4360 /* Read in the current symbolic header. */ | |
4361 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0) | |
4362 pfatal_with_name (input_name); | |
4363 | |
4364 sys_read = fread (&orig_sym_hdr, | |
4365 1, | |
4366 sizeof (orig_sym_hdr), | |
4367 obj_in_stream); | |
4368 | |
4369 if (sys_read < 0) | |
4370 pfatal_with_name (object_name); | |
4371 | |
4372 else if (sys_read < (int) sizeof (struct filehdr)) | |
4373 fatal ("wanted to read %d bytes from %s, system returned %d", | |
4374 (int) sizeof (struct filehdr), | |
4375 obj_in_name, | |
4376 sys_read); | |
4377 | |
4378 | |
4379 /* Read in each of the sections if they exist in the object file. | |
4380 We read things in the order the mips assembler creates the | |
4381 sections, so in theory no extra seeks are done. | |
4382 | |
4383 For simplicity sake, round each read up to a page boundary, | |
4384 we may want to revisit this later.... */ | |
4385 | |
4386 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr); | |
4387 | |
4388 if (orig_sym_hdr.cbLine > 0) /* line numbers */ | |
4389 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine, | |
4390 orig_sym_hdr.cbLineOffset, | |
4391 "Line numbers"); | |
4392 | |
4393 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */ | |
4394 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR), | |
4395 orig_sym_hdr.cbPdOffset, | |
4396 "Procedure tables"); | |
4397 | |
4398 if (orig_sym_hdr.isymMax > 0) /* local symbols */ | |
4399 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR), | |
4400 orig_sym_hdr.cbSymOffset, | |
4401 "Local symbols"); | |
4402 | |
4403 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */ | |
4404 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU), | |
4405 orig_sym_hdr.cbAuxOffset, | |
4406 "Aux. symbols"); | |
4407 | |
4408 if (orig_sym_hdr.issMax > 0) /* local strings */ | |
4409 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax, | |
4410 orig_sym_hdr.cbSsOffset, | |
4411 "Local strings"); | |
4412 | |
4413 if (orig_sym_hdr.issExtMax > 0) /* external strings */ | |
4414 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax, | |
4415 orig_sym_hdr.cbSsExtOffset, | |
4416 "External strings"); | |
4417 | |
4418 if (orig_sym_hdr.ifdMax > 0) /* file tables */ | |
4419 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR), | |
4420 orig_sym_hdr.cbFdOffset, | |
4421 "File tables"); | |
4422 | |
4423 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */ | |
4424 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t), | |
4425 orig_sym_hdr.cbRfdOffset, | |
4426 "Relative file descriptors"); | |
4427 | |
4428 if (orig_sym_hdr.issExtMax > 0) /* external symbols */ | |
4429 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR), | |
4430 orig_sym_hdr.cbExtOffset, | |
4431 "External symbols"); | |
4432 | |
4433 if (orig_sym_hdr.idnMax > 0) /* dense numbers */ | |
4434 { | |
4435 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR), | |
4436 orig_sym_hdr.cbDnOffset, | |
4437 "Dense numbers"); | |
4438 | |
4439 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax); | |
4440 } | |
4441 | |
4442 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */ | |
4443 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR), | |
4444 orig_sym_hdr.cbOptOffset, | |
4445 "Optimizer symbols"); | |
4446 | |
4447 | |
4448 | |
4449 /* The symbol table should be last. */ | |
4450 if (max_file_offset != (unsigned long) stat_buf.st_size) | |
4451 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld", | |
4452 max_file_offset, | |
4453 (long) stat_buf.st_size); | |
4454 | |
4455 | |
4456 /* If the first original file descriptor is a dummy which the assembler | |
4457 put out, but there are no symbols in it, skip it now. */ | |
4458 if (orig_sym_hdr.ifdMax > 1 | |
4459 && orig_files->csym == 2 | |
4460 && orig_files->caux == 0) | |
4461 { | |
4462 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss); | |
4463 char *suffix = strrchr (filename, '.'); | |
4464 | |
4465 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0) | |
4466 delete_ifd = 1; | |
4467 } | |
4468 | |
4469 | |
4470 /* Create array to map original file numbers to the new file numbers | |
4471 (in case there are duplicate filenames, we collapse them into one | |
4472 file section, the MIPS assembler may or may not collapse them). */ | |
4473 | |
4474 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax); | |
4475 | |
4476 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) | |
4477 { | |
4478 FDR *fd_ptr = ORIG_FILES (fd); | |
4479 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); | |
4480 | |
4481 /* file support itself. */ | |
4482 add_file (filename, filename + strlen (filename)); | |
4483 remap_file_number[fd] = cur_file_ptr->file_index; | |
4484 } | |
4485 | |
4486 if (delete_ifd > 0) /* just in case */ | |
4487 remap_file_number[0] = remap_file_number[1]; | |
4488 | |
4489 | |
4490 /* Loop, adding each of the external symbols. These must be in | |
4491 order or otherwise we would have to change the relocation | |
4492 entries. We don't just call add_bytes, because we need to have | |
4493 the names put into the external hash table. We set the type to | |
4494 'void' for now, and parse_def will fill in the correct type if it | |
4495 is in the symbol table. We must add the external symbols before | |
4496 the locals, since the locals do lookups against the externals. */ | |
4497 | |
4498 if (debug) | |
4499 fprintf (stderr, "\tehash\n"); | |
4500 | |
4501 for (es = 0; es < orig_sym_hdr.iextMax; es++) | |
4502 { | |
4503 EXTR *eptr = orig_ext_syms + es; | |
4504 int ifd = eptr->ifd; | |
4505 | |
4506 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax) | |
4507 ? remap_file_number[ ifd ] : ifd ); | |
4508 } | |
4509 | |
4510 | |
4511 /* For each of the files in the object file, copy the symbols, and such | |
4512 into the varrays for the new object file. */ | |
4513 | |
4514 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) | |
4515 { | |
4516 FDR *fd_ptr = ORIG_FILES (fd); | |
4517 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); | |
4518 SYMR *sym_start; | |
4519 SYMR *sym; | |
4520 SYMR *sym_end_p1; | |
4521 PDR *proc_start; | |
4522 PDR *proc; | |
4523 PDR *proc_end_p1; | |
4524 | |
4525 /* file support itself. */ | |
4526 add_file (filename, filename + strlen (filename)); | |
4527 cur_file_ptr->orig_fdr = fd_ptr; | |
4528 | |
4529 /* Copy stuff that's just passed through (such as line #'s) */ | |
4530 cur_file_ptr->fdr.adr = fd_ptr->adr; | |
4531 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase; | |
4532 cur_file_ptr->fdr.cline = fd_ptr->cline; | |
4533 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase; | |
4534 cur_file_ptr->fdr.crfd = fd_ptr->crfd; | |
4535 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset; | |
4536 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine; | |
4537 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge; | |
4538 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin; | |
4539 cur_file_ptr->fdr.glevel = fd_ptr->glevel; | |
4540 | |
4541 if (debug) | |
4542 fprintf (stderr, "\thash\tstart, filename %s\n", filename); | |
4543 | |
4544 /* For each of the static and global symbols defined, add them | |
4545 to the hash table of original symbols, so we can look up | |
4546 their values. */ | |
4547 | |
4548 sym_start = ORIG_LSYMS (fd_ptr->isymBase); | |
4549 sym_end_p1 = sym_start + fd_ptr->csym; | |
4550 for (sym = sym_start; sym < sym_end_p1; sym++) | |
4551 { | |
4552 switch ((st_t) sym->st) | |
4553 { | |
4554 default: | |
4555 break; | |
4556 | |
4557 case st_Global: | |
4558 case st_Static: | |
4559 case st_Label: | |
4560 case st_Proc: | |
4561 case st_StaticProc: | |
4562 { | |
4563 auto symint_t hash_index; | |
4564 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); | |
4565 Size_t len = strlen (str); | |
4566 shash_t *shash_ptr = hash_string (str, | |
4567 (Ptrdiff_t) len, | |
4568 &orig_str_hash[0], | |
4569 &hash_index); | |
4570 | |
4571 if (shash_ptr != (shash_t *) 0) | |
4572 error ("internal error, %s is already in original symbol table", str); | |
4573 | |
4574 else | |
4575 { | |
4576 shash_ptr = allocate_shash (); | |
4577 shash_ptr->next = orig_str_hash[hash_index]; | |
4578 orig_str_hash[hash_index] = shash_ptr; | |
4579 | |
4580 shash_ptr->len = len; | |
4581 shash_ptr->indx = indexNil; | |
4582 shash_ptr->string = str; | |
4583 shash_ptr->sym_ptr = sym; | |
4584 } | |
4585 } | |
4586 break; | |
4587 | |
4588 case st_End: | |
4589 if ((sc_t) sym->sc == sc_Text) | |
4590 { | |
4591 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); | |
4592 | |
4593 if (*str != '\0') | |
4594 { | |
4595 Size_t len = strlen (str); | |
4596 shash_t *shash_ptr = hash_string (str, | |
4597 (Ptrdiff_t) len, | |
4598 &orig_str_hash[0], | |
4599 (symint_t *) 0); | |
4600 | |
4601 if (shash_ptr != (shash_t *) 0) | |
4602 shash_ptr->end_ptr = sym; | |
4603 } | |
4604 } | |
4605 break; | |
4606 | |
4607 } | |
4608 } | |
4609 | |
4610 if (debug) | |
4611 { | |
4612 fprintf (stderr, "\thash\tdone, filename %s\n", filename); | |
4613 fprintf (stderr, "\tproc\tstart, filename %s\n", filename); | |
4614 } | |
4615 | |
4616 /* Go through each of the procedures in this file, and add the | |
4617 procedure pointer to the hash entry for the given name. */ | |
4618 | |
4619 proc_start = ORIG_PROCS (fd_ptr->ipdFirst); | |
4620 proc_end_p1 = proc_start + fd_ptr->cpd; | |
4621 for (proc = proc_start; proc < proc_end_p1; proc++) | |
4622 { | |
4623 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym); | |
4624 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss); | |
4625 Size_t len = strlen (str); | |
4626 shash_t *shash_ptr = hash_string (str, | |
4627 (Ptrdiff_t) len, | |
4628 &orig_str_hash[0], | |
4629 (symint_t *) 0); | |
4630 | |
4631 if (shash_ptr == (shash_t *) 0) | |
4632 error ("internal error, function %s is not in original symbol table", str); | |
4633 | |
4634 else | |
4635 shash_ptr->proc_ptr = proc; | |
4636 } | |
4637 | |
4638 if (debug) | |
4639 fprintf (stderr, "\tproc\tdone, filename %s\n", filename); | |
4640 | |
4641 } | |
4642 cur_file_ptr = first_file; | |
4643 | |
4644 | |
4645 /* Copy all of the object file up to the symbol table. Originally | |
4646 we were going to use ftruncate, but that doesn't seem to work | |
4647 on Ultrix 3.1.... */ | |
4648 | |
4649 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0) | |
4650 pfatal_with_name (obj_in_name); | |
4651 | |
4652 if (fseek (object_stream, (long) 0, SEEK_SET) != 0) | |
4653 pfatal_with_name (object_name); | |
4654 | |
4655 for (remaining = orig_file_header.f_symptr; | |
4656 remaining > 0; | |
4657 remaining -= num_write) | |
4658 { | |
4659 num_write | |
4660 = (remaining <= (int) sizeof (buffer)) | |
4661 ? remaining : (int) sizeof (buffer); | |
4662 sys_read = fread (buffer, 1, num_write, obj_in_stream); | |
4663 if (sys_read <= 0) | |
4664 pfatal_with_name (obj_in_name); | |
4665 | |
4666 else if (sys_read != num_write) | |
4667 fatal ("wanted to read %d bytes from %s, system returned %d", | |
4668 num_write, | |
4669 obj_in_name, | |
4670 sys_read); | |
4671 | |
4672 sys_write = fwrite (buffer, 1, num_write, object_stream); | |
4673 if (sys_write <= 0) | |
4674 pfatal_with_name (object_name); | |
4675 | |
4676 else if (sys_write != num_write) | |
4677 fatal ("wrote %d bytes to %s, system returned %d", | |
4678 num_write, | |
4679 object_name, | |
4680 sys_write); | |
4681 } | |
4682 } | |
4683 | |
4684 | |
4685 /* Ye olde main program. */ | |
4686 | |
4687 extern int main (int, char **); | |
4688 | |
4689 int | |
4690 main (int argc, char **argv) | |
4691 { | |
4692 int iflag = 0; | |
4693 char *p = strrchr (argv[0], '/'); | |
4694 char *num_end; | |
4695 int option; | |
4696 int i; | |
4697 | |
4698 progname = (p != 0) ? p+1 : argv[0]; | |
4699 | |
4700 (void) signal (SIGSEGV, catch_signal); | |
4701 (void) signal (SIGBUS, catch_signal); | |
4702 (void) signal (SIGABRT, catch_signal); | |
4703 | |
4704 #if !defined(__SABER__) && !defined(lint) | |
4705 if (sizeof (efdr_t) > PAGE_USIZE) | |
4706 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d", | |
4707 (int) sizeof (efdr_t), | |
4708 (int) PAGE_USIZE); | |
4709 | |
4710 if (sizeof (page_t) != PAGE_USIZE) | |
4711 fatal ("page_t has a sizeof %d bytes, when it should be %d", | |
4712 (int) sizeof (page_t), | |
4713 (int) PAGE_USIZE); | |
4714 | |
4715 #endif | |
4716 | |
4717 alloc_counts[ alloc_type_none ].alloc_name = "none"; | |
4718 alloc_counts[ alloc_type_scope ].alloc_name = "scope"; | |
4719 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks"; | |
4720 alloc_counts[ alloc_type_shash ].alloc_name = "shash"; | |
4721 alloc_counts[ alloc_type_thash ].alloc_name = "thash"; | |
4722 alloc_counts[ alloc_type_tag ].alloc_name = "tag"; | |
4723 alloc_counts[ alloc_type_forward ].alloc_name = "forward"; | |
4724 alloc_counts[ alloc_type_thead ].alloc_name = "thead"; | |
4725 alloc_counts[ alloc_type_varray ].alloc_name = "varray"; | |
4726 | |
4727 int_type_info = type_info_init; | |
4728 int_type_info.basic_type = bt_Int; | |
4729 | |
4730 void_type_info = type_info_init; | |
4731 void_type_info.basic_type = bt_Void; | |
4732 | |
4733 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1) | |
4734 switch (option) | |
4735 { | |
4736 default: | |
4737 had_errors++; | |
4738 break; | |
4739 | |
4740 case 'd': | |
4741 debug = strtol (optarg, &num_end, 0); | |
4742 if ((unsigned) debug > 4 || num_end == optarg) | |
4743 had_errors++; | |
4744 | |
4745 break; | |
4746 | |
4747 case 'I': | |
4748 if (rename_output || obj_in_name != (char *) 0) | |
4749 had_errors++; | |
4750 else | |
4751 rename_output = 1; | |
4752 | |
4753 /* Fall through to 'i' case. */ | |
4754 | |
4755 case 'i': | |
4756 if (obj_in_name == (char *) 0) | |
4757 { | |
4758 obj_in_name = optarg; | |
4759 iflag++; | |
4760 } | |
4761 else | |
4762 had_errors++; | |
4763 break; | |
4764 | |
4765 case 'o': | |
4766 if (object_name == (char *) 0) | |
4767 object_name = optarg; | |
4768 else | |
4769 had_errors++; | |
4770 break; | |
4771 | |
4772 case 'v': | |
4773 verbose++; | |
4774 break; | |
4775 | |
4776 case 'V': | |
4777 version++; | |
4778 break; | |
4779 } | |
4780 | |
4781 if (version) | |
4782 { | |
4783 printf (_("mips-tfile %s%s\n"), pkgversion_string, version_string); | |
4784 fputs ("Copyright (C) 2009 Free Software Foundation, Inc.\n", stdout); | |
4785 fputs (_("This is free software; see the source for copying conditions. There is NO\n\ | |
4786 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), | |
4787 stdout); | |
4788 exit (0); | |
4789 } | |
4790 | |
4791 if (obj_in_name == (char *) 0 && optind <= argc - 2) | |
4792 obj_in_name = argv[--argc]; | |
4793 | |
4794 if (object_name == (char *) 0 && optind <= argc - 2) | |
4795 object_name = argv[--argc]; | |
4796 | |
4797 /* If there is an output name, but no input name use | |
4798 the same file for both, deleting the name between | |
4799 opening it for input and opening it for output. */ | |
4800 if (obj_in_name == (char *) 0 && object_name != (char *) 0) | |
4801 { | |
4802 obj_in_name = object_name; | |
4803 delete_input = 1; | |
4804 } | |
4805 | |
4806 if (optind != argc - 1) | |
4807 had_errors++; | |
4808 | |
4809 if (verbose || had_errors) | |
4810 { | |
4811 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string); | |
4812 #ifdef TARGET_VERSION | |
4813 TARGET_VERSION; | |
4814 #endif | |
4815 fputc ('\n', stderr); | |
4816 } | |
4817 | |
4818 if (object_name == (char *) 0 || had_errors) | |
4819 { | |
4820 fprintf (stderr, _("Calling Sequence:\n")); | |
4821 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n")); | |
4822 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n")); | |
4823 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n")); | |
4824 fprintf (stderr, "\n"); | |
4825 fprintf (stderr, _("Debug levels are:\n")); | |
4826 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n")); | |
4827 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n")); | |
4828 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n")); | |
4829 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n")); | |
4830 return 1; | |
4831 } | |
4832 | |
4833 if (obj_in_name == (char *) 0) | |
4834 obj_in_name = object_name; | |
4835 | |
4836 if (rename_output && rename (object_name, obj_in_name) != 0) | |
4837 { | |
4838 char *buffer = (char *) allocate_multiple_pages (4); | |
4839 int len; | |
4840 int len2; | |
4841 int in_fd; | |
4842 int out_fd; | |
4843 | |
4844 /* Rename failed, copy input file */ | |
4845 in_fd = open (object_name, O_RDONLY, 0666); | |
4846 if (in_fd < 0) | |
4847 pfatal_with_name (object_name); | |
4848 | |
4849 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
4850 if (out_fd < 0) | |
4851 pfatal_with_name (obj_in_name); | |
4852 | |
4853 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0) | |
4854 { | |
4855 len2 = write (out_fd, buffer, len); | |
4856 if (len2 < 0) | |
4857 pfatal_with_name (object_name); | |
4858 | |
4859 if (len != len2) | |
4860 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len); | |
4861 } | |
4862 | |
4863 free_multiple_pages ((page_t *) buffer, 4); | |
4864 | |
4865 if (len < 0) | |
4866 pfatal_with_name (object_name); | |
4867 | |
4868 if (close (in_fd) < 0) | |
4869 pfatal_with_name (object_name); | |
4870 | |
4871 if (close (out_fd) < 0) | |
4872 pfatal_with_name (obj_in_name); | |
4873 } | |
4874 | |
4875 /* Must open input before output, since the output may be the same file, and | |
4876 we need to get the input handle before truncating it. */ | |
4877 obj_in_stream = fopen (obj_in_name, "r"); | |
4878 if (obj_in_stream == (FILE *) 0) | |
4879 pfatal_with_name (obj_in_name); | |
4880 | |
4881 if (delete_input && unlink (obj_in_name) != 0) | |
4882 pfatal_with_name (obj_in_name); | |
4883 | |
4884 object_stream = fopen (object_name, "w"); | |
4885 if (object_stream == (FILE *) 0) | |
4886 pfatal_with_name (object_name); | |
4887 | |
4888 if (strcmp (argv[optind], "-") != 0) | |
4889 { | |
4890 input_name = argv[optind]; | |
4891 if (freopen (argv[optind], "r", stdin) != stdin) | |
4892 pfatal_with_name (argv[optind]); | |
4893 } | |
4894 | |
4895 copy_object (); /* scan & copy object file */ | |
4896 parse_input (); /* scan all of input */ | |
4897 | |
4898 update_headers (); /* write out tfile */ | |
4899 write_object (); | |
4900 | |
4901 if (debug) | |
4902 { | |
4903 fprintf (stderr, "\n\tAllocation summary:\n\n"); | |
4904 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++) | |
4905 if (alloc_counts[i].total_alloc) | |
4906 { | |
4907 fprintf (stderr, | |
4908 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n", | |
4909 alloc_counts[i].alloc_name, | |
4910 alloc_counts[i].total_alloc, | |
4911 alloc_counts[i].total_free, | |
4912 alloc_counts[i].total_pages); | |
4913 } | |
4914 } | |
4915 | |
4916 return (had_errors) ? 1 : 0; | |
4917 } | |
4918 | |
4919 | |
4920 /* Catch a signal and exit without dumping core. */ | |
4921 | |
4922 STATIC void | |
4923 catch_signal (int signum) | |
4924 { | |
4925 (void) signal (signum, SIG_DFL); /* just in case... */ | |
4926 fatal ("%s", strsignal (signum)); | |
4927 } | |
4928 | |
4929 /* Print a fatal error message. NAME is the text. | |
4930 Also include a system error message based on `errno'. */ | |
4931 | |
4932 void | |
4933 pfatal_with_name (const char *msg) | |
4934 { | |
4935 int save_errno = errno; /* just in case.... */ | |
4936 if (line_number > 0) | |
4937 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); | |
4938 else | |
4939 fprintf (stderr, "%s:", progname); | |
4940 | |
4941 errno = save_errno; | |
4942 if (errno == 0) | |
4943 fprintf (stderr, "[errno = 0] %s\n", msg); | |
4944 else | |
4945 perror (msg); | |
4946 | |
4947 exit (1); | |
4948 } | |
4949 | |
4950 | |
4951 /* Procedure to die with an out of bounds error message. It has | |
4952 type int, so it can be used with an ?: expression within the | |
4953 ORIG_xxx macros, but the function never returns. */ | |
4954 | |
4955 static int | |
4956 out_of_bounds (symint_t indx, /* index that is out of bounds */ | |
4957 symint_t max, /* maximum index */ | |
4958 const char *str, /* string to print out */ | |
4959 int prog_line) /* line number within mips-tfile.c */ | |
4960 { | |
4961 if (indx < max) /* just in case */ | |
4962 return 0; | |
4963 | |
4964 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n", | |
4965 progname, input_name, line_number, indx, str, max, prog_line); | |
4966 | |
4967 exit (1); | |
4968 return 0; /* turn off warning messages */ | |
4969 } | |
4970 | |
4971 | |
4972 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not | |
4973 like sbrk's behind its back (or sbrk isn't available). If we use | |
4974 sbrk, we assume it gives us zeroed pages. */ | |
4975 | |
4976 #ifndef MALLOC_CHECK | |
4977 #ifdef USE_MALLOC | |
4978 | |
4979 STATIC page_t * | |
4980 allocate_cluster (Size_t npages) | |
4981 { | |
4982 page_t *value = xcalloc (npages, PAGE_USIZE); | |
4983 | |
4984 if (debug > 3) | |
4985 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); | |
4986 | |
4987 return value; | |
4988 } | |
4989 | |
4990 #else /* USE_MALLOC */ | |
4991 | |
4992 STATIC page_t * | |
4993 allocate_cluster (Size_t npages) | |
4994 { | |
4995 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */ | |
4996 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1); | |
4997 | |
4998 if (offset != 0) /* align to a page boundary */ | |
4999 { | |
5000 if (sbrk (PAGE_USIZE - offset) == (char *)-1) | |
5001 pfatal_with_name ("allocate_cluster"); | |
5002 | |
5003 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset); | |
5004 } | |
5005 | |
5006 if (sbrk (npages * PAGE_USIZE) == (char *) -1) | |
5007 pfatal_with_name ("allocate_cluster"); | |
5008 | |
5009 if (debug > 3) | |
5010 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n", | |
5011 (unsigned long) npages, (void *) ptr); | |
5012 | |
5013 return ptr; | |
5014 } | |
5015 | |
5016 #endif /* USE_MALLOC */ | |
5017 | |
5018 | |
5019 static page_t *cluster_ptr = NULL; | |
5020 static unsigned pages_left = 0; | |
5021 | |
5022 #endif /* MALLOC_CHECK */ | |
5023 | |
5024 | |
5025 /* Allocate some pages (which is initialized to 0). */ | |
5026 | |
5027 STATIC page_t * | |
5028 allocate_multiple_pages (Size_t npages) | |
5029 { | |
5030 #ifndef MALLOC_CHECK | |
5031 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES) | |
5032 { | |
5033 pages_left = MAX_CLUSTER_PAGES; | |
5034 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); | |
5035 } | |
5036 | |
5037 if (npages <= pages_left) | |
5038 { | |
5039 page_t *ptr = cluster_ptr; | |
5040 cluster_ptr += npages; | |
5041 pages_left -= npages; | |
5042 return ptr; | |
5043 } | |
5044 | |
5045 return allocate_cluster (npages); | |
5046 | |
5047 #else /* MALLOC_CHECK */ | |
5048 return xcalloc (npages, PAGE_SIZE); | |
5049 | |
5050 #endif /* MALLOC_CHECK */ | |
5051 } | |
5052 | |
5053 | |
5054 /* Release some pages. */ | |
5055 | |
5056 STATIC void | |
5057 free_multiple_pages (page_t *page_ptr, Size_t npages) | |
5058 { | |
5059 #ifndef MALLOC_CHECK | |
5060 if (pages_left == 0) | |
5061 { | |
5062 cluster_ptr = page_ptr; | |
5063 pages_left = npages; | |
5064 } | |
5065 | |
5066 else if ((page_ptr + npages) == cluster_ptr) | |
5067 { | |
5068 cluster_ptr -= npages; | |
5069 pages_left += npages; | |
5070 } | |
5071 | |
5072 /* otherwise the page is not freed. If more than call is | |
5073 done, we probably should worry about it, but at present, | |
5074 the free pages is done right after an allocate. */ | |
5075 | |
5076 #else /* MALLOC_CHECK */ | |
5077 free (page_ptr); | |
5078 | |
5079 #endif /* MALLOC_CHECK */ | |
5080 } | |
5081 | |
5082 | |
5083 /* Allocate one page (which is initialized to 0). */ | |
5084 | |
5085 STATIC page_t * | |
5086 allocate_page (void) | |
5087 { | |
5088 #ifndef MALLOC_CHECK | |
5089 if (pages_left == 0) | |
5090 { | |
5091 pages_left = MAX_CLUSTER_PAGES; | |
5092 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); | |
5093 } | |
5094 | |
5095 pages_left--; | |
5096 return cluster_ptr++; | |
5097 | |
5098 #else /* MALLOC_CHECK */ | |
5099 return xcalloc (1, PAGE_SIZE); | |
5100 | |
5101 #endif /* MALLOC_CHECK */ | |
5102 } | |
5103 | |
5104 | |
5105 /* Allocate scoping information. */ | |
5106 | |
5107 STATIC scope_t * | |
5108 allocate_scope (void) | |
5109 { | |
5110 scope_t *ptr; | |
5111 static scope_t initial_scope; | |
5112 | |
5113 #ifndef MALLOC_CHECK | |
5114 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; | |
5115 if (ptr != (scope_t *) 0) | |
5116 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free; | |
5117 | |
5118 else | |
5119 { | |
5120 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated; | |
5121 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page; | |
5122 | |
5123 if (unallocated == 0) | |
5124 { | |
5125 unallocated = PAGE_SIZE / sizeof (scope_t); | |
5126 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page (); | |
5127 alloc_counts[ (int) alloc_type_scope ].total_pages++; | |
5128 } | |
5129 | |
5130 ptr = &cur_page->scope[ --unallocated ]; | |
5131 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated; | |
5132 } | |
5133 | |
5134 #else | |
5135 ptr = xmalloc (sizeof (scope_t)); | |
5136 | |
5137 #endif | |
5138 | |
5139 alloc_counts[ (int) alloc_type_scope ].total_alloc++; | |
5140 *ptr = initial_scope; | |
5141 return ptr; | |
5142 } | |
5143 | |
5144 /* Free scoping information. */ | |
5145 | |
5146 STATIC void | |
5147 free_scope (scope_t *ptr) | |
5148 { | |
5149 alloc_counts[ (int) alloc_type_scope ].total_free++; | |
5150 | |
5151 #ifndef MALLOC_CHECK | |
5152 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; | |
5153 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr; | |
5154 | |
5155 #else | |
5156 free (ptr); | |
5157 #endif | |
5158 | |
5159 } | |
5160 | |
5161 | |
5162 /* Allocate links for pages in a virtual array. */ | |
5163 | |
5164 STATIC vlinks_t * | |
5165 allocate_vlinks (void) | |
5166 { | |
5167 vlinks_t *ptr; | |
5168 static vlinks_t initial_vlinks; | |
5169 | |
5170 #ifndef MALLOC_CHECK | |
5171 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated; | |
5172 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page; | |
5173 | |
5174 if (unallocated == 0) | |
5175 { | |
5176 unallocated = PAGE_SIZE / sizeof (vlinks_t); | |
5177 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page (); | |
5178 alloc_counts[ (int) alloc_type_vlinks ].total_pages++; | |
5179 } | |
5180 | |
5181 ptr = &cur_page->vlinks[ --unallocated ]; | |
5182 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated; | |
5183 | |
5184 #else | |
5185 ptr = xmalloc (sizeof (vlinks_t)); | |
5186 | |
5187 #endif | |
5188 | |
5189 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++; | |
5190 *ptr = initial_vlinks; | |
5191 return ptr; | |
5192 } | |
5193 | |
5194 | |
5195 /* Allocate string hash buckets. */ | |
5196 | |
5197 STATIC shash_t * | |
5198 allocate_shash (void) | |
5199 { | |
5200 shash_t *ptr; | |
5201 static shash_t initial_shash; | |
5202 | |
5203 #ifndef MALLOC_CHECK | |
5204 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated; | |
5205 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page; | |
5206 | |
5207 if (unallocated == 0) | |
5208 { | |
5209 unallocated = PAGE_SIZE / sizeof (shash_t); | |
5210 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page (); | |
5211 alloc_counts[ (int) alloc_type_shash ].total_pages++; | |
5212 } | |
5213 | |
5214 ptr = &cur_page->shash[ --unallocated ]; | |
5215 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated; | |
5216 | |
5217 #else | |
5218 ptr = xmalloc (sizeof (shash_t)); | |
5219 | |
5220 #endif | |
5221 | |
5222 alloc_counts[ (int) alloc_type_shash ].total_alloc++; | |
5223 *ptr = initial_shash; | |
5224 return ptr; | |
5225 } | |
5226 | |
5227 | |
5228 /* Allocate type hash buckets. */ | |
5229 | |
5230 STATIC thash_t * | |
5231 allocate_thash (void) | |
5232 { | |
5233 thash_t *ptr; | |
5234 static thash_t initial_thash; | |
5235 | |
5236 #ifndef MALLOC_CHECK | |
5237 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated; | |
5238 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page; | |
5239 | |
5240 if (unallocated == 0) | |
5241 { | |
5242 unallocated = PAGE_SIZE / sizeof (thash_t); | |
5243 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page (); | |
5244 alloc_counts[ (int) alloc_type_thash ].total_pages++; | |
5245 } | |
5246 | |
5247 ptr = &cur_page->thash[ --unallocated ]; | |
5248 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated; | |
5249 | |
5250 #else | |
5251 ptr = xmalloc (sizeof (thash_t)); | |
5252 | |
5253 #endif | |
5254 | |
5255 alloc_counts[ (int) alloc_type_thash ].total_alloc++; | |
5256 *ptr = initial_thash; | |
5257 return ptr; | |
5258 } | |
5259 | |
5260 | |
5261 /* Allocate structure, union, or enum tag information. */ | |
5262 | |
5263 STATIC tag_t * | |
5264 allocate_tag (void) | |
5265 { | |
5266 tag_t *ptr; | |
5267 static tag_t initial_tag; | |
5268 | |
5269 #ifndef MALLOC_CHECK | |
5270 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; | |
5271 if (ptr != (tag_t *) 0) | |
5272 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free; | |
5273 | |
5274 else | |
5275 { | |
5276 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated; | |
5277 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page; | |
5278 | |
5279 if (unallocated == 0) | |
5280 { | |
5281 unallocated = PAGE_SIZE / sizeof (tag_t); | |
5282 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page (); | |
5283 alloc_counts[ (int) alloc_type_tag ].total_pages++; | |
5284 } | |
5285 | |
5286 ptr = &cur_page->tag[ --unallocated ]; | |
5287 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated; | |
5288 } | |
5289 | |
5290 #else | |
5291 ptr = xmalloc (sizeof (tag_t)); | |
5292 | |
5293 #endif | |
5294 | |
5295 alloc_counts[ (int) alloc_type_tag ].total_alloc++; | |
5296 *ptr = initial_tag; | |
5297 return ptr; | |
5298 } | |
5299 | |
5300 /* Free scoping information. */ | |
5301 | |
5302 STATIC void | |
5303 free_tag (tag_t *ptr) | |
5304 { | |
5305 alloc_counts[ (int) alloc_type_tag ].total_free++; | |
5306 | |
5307 #ifndef MALLOC_CHECK | |
5308 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; | |
5309 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr; | |
5310 | |
5311 #else | |
5312 free (ptr); | |
5313 #endif | |
5314 | |
5315 } | |
5316 | |
5317 | |
5318 /* Allocate forward reference to a yet unknown tag. */ | |
5319 | |
5320 STATIC forward_t * | |
5321 allocate_forward (void) | |
5322 { | |
5323 forward_t *ptr; | |
5324 static forward_t initial_forward; | |
5325 | |
5326 #ifndef MALLOC_CHECK | |
5327 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; | |
5328 if (ptr != (forward_t *) 0) | |
5329 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free; | |
5330 | |
5331 else | |
5332 { | |
5333 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated; | |
5334 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page; | |
5335 | |
5336 if (unallocated == 0) | |
5337 { | |
5338 unallocated = PAGE_SIZE / sizeof (forward_t); | |
5339 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page (); | |
5340 alloc_counts[ (int) alloc_type_forward ].total_pages++; | |
5341 } | |
5342 | |
5343 ptr = &cur_page->forward[ --unallocated ]; | |
5344 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated; | |
5345 } | |
5346 | |
5347 #else | |
5348 ptr = xmalloc (sizeof (forward_t)); | |
5349 | |
5350 #endif | |
5351 | |
5352 alloc_counts[ (int) alloc_type_forward ].total_alloc++; | |
5353 *ptr = initial_forward; | |
5354 return ptr; | |
5355 } | |
5356 | |
5357 /* Free scoping information. */ | |
5358 | |
5359 STATIC void | |
5360 free_forward (forward_t *ptr) | |
5361 { | |
5362 alloc_counts[ (int) alloc_type_forward ].total_free++; | |
5363 | |
5364 #ifndef MALLOC_CHECK | |
5365 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; | |
5366 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr; | |
5367 | |
5368 #else | |
5369 free (ptr); | |
5370 #endif | |
5371 | |
5372 } | |
5373 | |
5374 | |
5375 /* Allocate head of type hash list. */ | |
5376 | |
5377 STATIC thead_t * | |
5378 allocate_thead (void) | |
5379 { | |
5380 thead_t *ptr; | |
5381 static thead_t initial_thead; | |
5382 | |
5383 #ifndef MALLOC_CHECK | |
5384 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; | |
5385 if (ptr != (thead_t *) 0) | |
5386 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free; | |
5387 | |
5388 else | |
5389 { | |
5390 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated; | |
5391 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page; | |
5392 | |
5393 if (unallocated == 0) | |
5394 { | |
5395 unallocated = PAGE_SIZE / sizeof (thead_t); | |
5396 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page (); | |
5397 alloc_counts[ (int) alloc_type_thead ].total_pages++; | |
5398 } | |
5399 | |
5400 ptr = &cur_page->thead[ --unallocated ]; | |
5401 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated; | |
5402 } | |
5403 | |
5404 #else | |
5405 ptr = xmalloc (sizeof (thead_t)); | |
5406 | |
5407 #endif | |
5408 | |
5409 alloc_counts[ (int) alloc_type_thead ].total_alloc++; | |
5410 *ptr = initial_thead; | |
5411 return ptr; | |
5412 } | |
5413 | |
5414 /* Free scoping information. */ | |
5415 | |
5416 STATIC void | |
5417 free_thead (thead_t *ptr) | |
5418 { | |
5419 alloc_counts[ (int) alloc_type_thead ].total_free++; | |
5420 | |
5421 #ifndef MALLOC_CHECK | |
5422 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; | |
5423 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr; | |
5424 | |
5425 #else | |
5426 free (ptr); | |
5427 #endif | |
5428 | |
5429 } | |
5430 | |
5431 #endif /* MIPS_DEBUGGING_INFO */ | |
5432 | |
5433 | |
5434 /* Output an error message and exit. */ | |
5435 | |
5436 void | |
5437 fatal (const char *format, ...) | |
5438 { | |
5439 va_list ap; | |
5440 | |
5441 va_start (ap, format); | |
5442 | |
5443 if (line_number > 0) | |
5444 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); | |
5445 else | |
5446 fprintf (stderr, "%s:", progname); | |
5447 | |
5448 vfprintf (stderr, format, ap); | |
5449 va_end (ap); | |
5450 fprintf (stderr, "\n"); | |
5451 if (line_number > 0) | |
5452 fprintf (stderr, "line:\t%s\n", cur_line_start); | |
5453 | |
5454 saber_stop (); | |
5455 exit (1); | |
5456 } | |
5457 | |
5458 void | |
5459 error (const char *format, ...) | |
5460 { | |
5461 va_list ap; | |
5462 | |
5463 va_start (ap, format); | |
5464 | |
5465 if (line_number > 0) | |
5466 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); | |
5467 else | |
5468 fprintf (stderr, "%s:", progname); | |
5469 | |
5470 vfprintf (stderr, format, ap); | |
5471 fprintf (stderr, "\n"); | |
5472 if (line_number > 0) | |
5473 fprintf (stderr, "line:\t%s\n", cur_line_start); | |
5474 | |
5475 had_errors++; | |
5476 va_end (ap); | |
5477 | |
5478 saber_stop (); | |
5479 } | |
5480 | |
5481 /* More 'friendly' abort that prints the line and file. */ | |
5482 | |
5483 void | |
5484 fancy_abort (const char *file, int line, const char *func) | |
5485 { | |
5486 fatal ("abort in %s, at %s:%d", func, file, line); | |
5487 } | |
5488 | |
5489 | |
5490 /* When `malloc.c' is compiled with `rcheck' defined, | |
5491 it calls this function to report clobberage. */ | |
5492 | |
5493 void | |
5494 botch (const char *s) | |
5495 { | |
5496 fatal ("%s", s); | |
5497 } |