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9faec336 ILT |
1 | /* ECOFF debugging support. |
2 | Copyright (C) 1993 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support. | |
4 | This file was put together by Ian Lance Taylor <ian@cygnus.com>. A | |
5 | good deal of it comes directly from mips-tfile.c, by Michael | |
6 | Meissner <meissner@osf.org>. | |
7 | ||
8 | This file is part of GAS. | |
9 | ||
10 | GAS is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
14 | ||
15 | GAS is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with GAS; see the file COPYING. If not, write to | |
22 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
23 | ||
24 | #include "as.h" | |
25 | ||
26 | /* This file is compiled conditionally for those targets which use | |
27 | ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha | |
28 | ECOFF). */ | |
29 | ||
30 | #ifdef ECOFF_DEBUGGING | |
31 | ||
32 | #include "coff/internal.h" | |
33 | #include "coff/symconst.h" | |
34 | #include "ecoff.h" | |
35 | #include "aout/stab_gnu.h" | |
36 | ||
37 | #include <ctype.h> | |
38 | ||
39 | /* Why isn't this in coff/sym.h? */ | |
40 | #define ST_RFDESCAPE 0xfff | |
41 | ||
42 | /* This file constructs the information used by the ECOFF debugging | |
43 | format. It just builds a large block of data. | |
44 | ||
45 | We support both ECOFF style debugging and stabs debugging (the | |
46 | stabs symbols are encapsulated in ECOFF symbols). This should let | |
47 | us handle anything the compiler might throw at us. */ | |
48 | ||
49 | /* Here is a brief description of the MIPS ECOFF symbol table, by | |
50 | Michael Meissner. The MIPS symbol table has the following pieces: | |
51 | ||
52 | Symbolic Header | |
53 | | | |
54 | +-- Auxiliary Symbols | |
55 | | | |
56 | +-- Dense number table | |
57 | | | |
58 | +-- Optimizer Symbols | |
59 | | | |
60 | +-- External Strings | |
61 | | | |
62 | +-- External Symbols | |
63 | | | |
64 | +-- Relative file descriptors | |
65 | | | |
66 | +-- File table | |
67 | | | |
68 | +-- Procedure table | |
69 | | | |
70 | +-- Line number table | |
71 | | | |
72 | +-- Local Strings | |
73 | | | |
74 | +-- Local Symbols | |
75 | ||
76 | The symbolic header points to each of the other tables, and also | |
77 | contains the number of entries. It also contains a magic number | |
78 | and MIPS compiler version number, such as 2.0. | |
79 | ||
80 | The auxiliary table is a series of 32 bit integers, that are | |
81 | referenced as needed from the local symbol table. Unlike standard | |
82 | COFF, the aux. information does not follow the symbol that uses | |
83 | it, but rather is a separate table. In theory, this would allow | |
84 | the MIPS compilers to collapse duplicate aux. entries, but I've not | |
85 | noticed this happening with the 1.31 compiler suite. The different | |
86 | types of aux. entries are: | |
87 | ||
88 | 1) dnLow: Low bound on array dimension. | |
89 | ||
90 | 2) dnHigh: High bound on array dimension. | |
91 | ||
92 | 3) isym: Index to the local symbol which is the start of the | |
93 | function for the end of function first aux. entry. | |
94 | ||
95 | 4) width: Width of structures and bitfields. | |
96 | ||
97 | 5) count: Count of ranges for variant part. | |
98 | ||
99 | 6) rndx: A relative index into the symbol table. The relative | |
100 | index field has two parts: rfd which is a pointer into the | |
101 | relative file index table or ST_RFDESCAPE which says the next | |
102 | aux. entry is the file number, and index: which is the pointer | |
103 | into the local symbol within a given file table. This is for | |
104 | things like references to types defined in another file. | |
105 | ||
106 | 7) Type information: This is like the COFF type bits, except it | |
107 | is 32 bits instead of 16; they still have room to add new | |
108 | basic types; and they can handle more than 6 levels of array, | |
109 | pointer, function, etc. Each type information field contains | |
110 | the following structure members: | |
111 | ||
112 | a) fBitfield: a bit that says this is a bitfield, and the | |
113 | size in bits follows as the next aux. entry. | |
114 | ||
115 | b) continued: a bit that says the next aux. entry is a | |
116 | continuation of the current type information (in case | |
117 | there are more than 6 levels of array/ptr/function). | |
118 | ||
119 | c) bt: an integer containing the base type before adding | |
120 | array, pointer, function, etc. qualifiers. The | |
121 | current base types that I have documentation for are: | |
122 | ||
012353f7 | 123 | btNil -- undefined |
9faec336 | 124 | btAdr -- address - integer same size as ptr |
012353f7 KR |
125 | btChar -- character |
126 | btUChar -- unsigned character | |
127 | btShort -- short | |
128 | btUShort -- unsigned short | |
129 | btInt -- int | |
130 | btUInt -- unsigned int | |
131 | btLong -- long | |
132 | btULong -- unsigned long | |
133 | btFloat -- float (real) | |
134 | btDouble -- Double (real) | |
135 | btStruct -- Structure (Record) | |
136 | btUnion -- Union (variant) | |
137 | btEnum -- Enumerated | |
138 | btTypedef -- defined via a typedef isymRef | |
139 | btRange -- subrange of int | |
140 | btSet -- pascal sets | |
141 | btComplex -- fortran complex | |
142 | btDComplex -- fortran double complex | |
143 | btIndirect -- forward or unnamed typedef | |
144 | btFixedDec -- Fixed Decimal | |
145 | btFloatDec -- Float Decimal | |
146 | btString -- Varying Length Character String | |
147 | btBit -- Aligned Bit String | |
9faec336 ILT |
148 | btPicture -- Picture |
149 | btVoid -- Void (MIPS cc revision >= 2.00) | |
150 | ||
151 | d) tq0 - tq5: type qualifier fields as needed. The | |
152 | current type qualifier fields I have documentation for | |
153 | are: | |
154 | ||
012353f7 KR |
155 | tqNil -- no more qualifiers |
156 | tqPtr -- pointer | |
157 | tqProc -- procedure | |
158 | tqArray -- array | |
159 | tqFar -- 8086 far pointers | |
160 | tqVol -- volatile | |
9faec336 ILT |
161 | |
162 | ||
163 | The dense number table is used in the front ends, and disappears by | |
164 | the time the .o is created. | |
165 | ||
166 | With the 1.31 compiler suite, the optimization symbols don't seem | |
167 | to be used as far as I can tell. | |
168 | ||
169 | The linker is the first entity that creates the relative file | |
170 | descriptor table, and I believe it is used so that the individual | |
171 | file table pointers don't have to be rewritten when the objects are | |
172 | merged together into the program file. | |
173 | ||
174 | Unlike COFF, the basic symbol & string tables are split into | |
175 | external and local symbols/strings. The relocation information | |
176 | only goes off of the external symbol table, and the debug | |
177 | information only goes off of the internal symbol table. The | |
178 | external symbols can have links to an appropriate file index and | |
179 | symbol within the file to give it the appropriate type information. | |
180 | Because of this, the external symbols are actually larger than the | |
181 | internal symbols (to contain the link information), and contain the | |
182 | local symbol structure as a member, though this member is not the | |
183 | first member of the external symbol structure (!). I suspect this | |
184 | split is to make strip easier to deal with. | |
185 | ||
186 | Each file table has offsets for where the line numbers, local | |
187 | strings, local symbols, and procedure table starts from within the | |
188 | global tables, and the indexs are reset to 0 for each of those | |
189 | tables for the file. | |
190 | ||
191 | The procedure table contains the binary equivalents of the .ent | |
192 | (start of the function address), .frame (what register is the | |
193 | virtual frame pointer, constant offset from the register to obtain | |
194 | the VFP, and what register holds the return address), .mask/.fmask | |
195 | (bitmask of saved registers, and where the first register is stored | |
196 | relative to the VFP) assembler directives. It also contains the | |
197 | low and high bounds of the line numbers if debugging is turned on. | |
198 | ||
199 | The line number table is a compressed form of the normal COFF line | |
200 | table. Each line number entry is either 1 or 3 bytes long, and | |
201 | contains a signed delta from the previous line, and an unsigned | |
202 | count of the number of instructions this statement takes. | |
203 | ||
204 | The local symbol table contains the following fields: | |
205 | ||
206 | 1) iss: index to the local string table giving the name of the | |
207 | symbol. | |
208 | ||
209 | 2) value: value of the symbol (address, register number, etc.). | |
210 | ||
211 | 3) st: symbol type. The current symbol types are: | |
212 | ||
213 | stNil -- Nuthin' special | |
214 | stGlobal -- external symbol | |
215 | stStatic -- static | |
216 | stParam -- procedure argument | |
217 | stLocal -- local variable | |
218 | stLabel -- label | |
219 | stProc -- External Procedure | |
220 | stBlock -- beginning of block | |
221 | stEnd -- end (of anything) | |
222 | stMember -- member (of anything) | |
223 | stTypedef -- type definition | |
224 | stFile -- file name | |
225 | stRegReloc -- register relocation | |
226 | stForward -- forwarding address | |
227 | stStaticProc -- Static procedure | |
228 | stConstant -- const | |
229 | ||
230 | 4) sc: storage class. The current storage classes are: | |
231 | ||
232 | scText -- text symbol | |
233 | scData -- initialized data symbol | |
234 | scBss -- un-initialized data symbol | |
235 | scRegister -- value of symbol is register number | |
236 | scAbs -- value of symbol is absolute | |
237 | scUndefined -- who knows? | |
238 | scCdbLocal -- variable's value is IN se->va.?? | |
239 | scBits -- this is a bit field | |
240 | scCdbSystem -- value is IN debugger's address space | |
241 | scRegImage -- register value saved on stack | |
242 | scInfo -- symbol contains debugger information | |
243 | scUserStruct -- addr in struct user for current process | |
244 | scSData -- load time only small data | |
245 | scSBss -- load time only small common | |
246 | scRData -- load time only read only data | |
247 | scVar -- Var parameter (fortranpascal) | |
248 | scCommon -- common variable | |
249 | scSCommon -- small common | |
250 | scVarRegister -- Var parameter in a register | |
251 | scVariant -- Variant record | |
252 | scSUndefined -- small undefined(external) data | |
253 | scInit -- .init section symbol | |
254 | ||
255 | 5) index: pointer to a local symbol or aux. entry. | |
256 | ||
257 | ||
258 | ||
259 | For the following program: | |
260 | ||
261 | #include <stdio.h> | |
262 | ||
263 | main(){ | |
264 | printf("Hello World!\n"); | |
265 | return 0; | |
266 | } | |
267 | ||
268 | Mips-tdump produces the following information: | |
012353f7 | 269 | |
9faec336 ILT |
270 | Global file header: |
271 | magic number 0x162 | |
272 | # sections 2 | |
273 | timestamp 645311799, Wed Jun 13 17:16:39 1990 | |
274 | symbolic header offset 284 | |
275 | symbolic header size 96 | |
276 | optional header 56 | |
277 | flags 0x0 | |
012353f7 | 278 | |
9faec336 | 279 | Symbolic header, magic number = 0x7009, vstamp = 1.31: |
012353f7 | 280 | |
9faec336 ILT |
281 | Info Offset Number Bytes |
282 | ==== ====== ====== ===== | |
012353f7 | 283 | |
9faec336 ILT |
284 | Line numbers 380 4 4 [13] |
285 | Dense numbers 0 0 0 | |
286 | Procedures Tables 384 1 52 | |
287 | Local Symbols 436 16 192 | |
288 | Optimization Symbols 0 0 0 | |
289 | Auxiliary Symbols 628 39 156 | |
290 | Local Strings 784 80 80 | |
291 | External Strings 864 144 144 | |
292 | File Tables 1008 2 144 | |
293 | Relative Files 0 0 0 | |
294 | External Symbols 1152 20 320 | |
012353f7 | 295 | |
9faec336 | 296 | File #0, "hello2.c" |
012353f7 | 297 | |
9faec336 ILT |
298 | Name index = 1 Readin = No |
299 | Merge = No Endian = LITTLE | |
300 | Debug level = G2 Language = C | |
301 | Adr = 0x00000000 | |
012353f7 | 302 | |
9faec336 ILT |
303 | Info Start Number Size Offset |
304 | ==== ===== ====== ==== ====== | |
305 | Local strings 0 15 15 784 | |
306 | Local symbols 0 6 72 436 | |
307 | Line numbers 0 13 13 380 | |
308 | Optimization symbols 0 0 0 0 | |
309 | Procedures 0 1 52 384 | |
310 | Auxiliary symbols 0 14 56 628 | |
311 | Relative Files 0 0 0 0 | |
012353f7 | 312 | |
9faec336 ILT |
313 | There are 6 local symbols, starting at 436 |
314 | ||
315 | Symbol# 0: "hello2.c" | |
316 | End+1 symbol = 6 | |
317 | String index = 1 | |
318 | Storage class = Text Index = 6 | |
319 | Symbol type = File Value = 0 | |
320 | ||
321 | Symbol# 1: "main" | |
322 | End+1 symbol = 5 | |
323 | Type = int | |
324 | String index = 10 | |
325 | Storage class = Text Index = 12 | |
326 | Symbol type = Proc Value = 0 | |
327 | ||
328 | Symbol# 2: "" | |
329 | End+1 symbol = 4 | |
330 | String index = 0 | |
331 | Storage class = Text Index = 4 | |
332 | Symbol type = Block Value = 8 | |
333 | ||
334 | Symbol# 3: "" | |
335 | First symbol = 2 | |
336 | String index = 0 | |
337 | Storage class = Text Index = 2 | |
338 | Symbol type = End Value = 28 | |
339 | ||
340 | Symbol# 4: "main" | |
341 | First symbol = 1 | |
342 | String index = 10 | |
343 | Storage class = Text Index = 1 | |
344 | Symbol type = End Value = 52 | |
345 | ||
346 | Symbol# 5: "hello2.c" | |
347 | First symbol = 0 | |
348 | String index = 1 | |
349 | Storage class = Text Index = 0 | |
350 | Symbol type = End Value = 0 | |
351 | ||
352 | There are 14 auxiliary table entries, starting at 628. | |
353 | ||
354 | * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
355 | * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
356 | * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] | |
357 | * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] | |
358 | * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
359 | * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] | |
360 | * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] | |
361 | * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] | |
362 | * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] | |
363 | * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] | |
364 | * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] | |
365 | * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] | |
366 | #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] | |
367 | #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] | |
368 | ||
369 | There are 1 procedure descriptor entries, starting at 0. | |
370 | ||
371 | Procedure descriptor 0: | |
372 | Name index = 10 Name = "main" | |
373 | .mask 0x80000000,-4 .fmask 0x00000000,0 | |
374 | .frame $29,24,$31 | |
375 | Opt. start = -1 Symbols start = 1 | |
376 | First line # = 3 Last line # = 6 | |
377 | Line Offset = 0 Address = 0x00000000 | |
378 | ||
379 | There are 4 bytes holding line numbers, starting at 380. | |
380 | Line 3, delta 0, count 2 | |
381 | Line 4, delta 1, count 3 | |
382 | Line 5, delta 1, count 2 | |
383 | Line 6, delta 1, count 6 | |
384 | ||
385 | File #1, "/usr/include/stdio.h" | |
386 | ||
387 | Name index = 1 Readin = No | |
388 | Merge = Yes Endian = LITTLE | |
389 | Debug level = G2 Language = C | |
390 | Adr = 0x00000000 | |
391 | ||
392 | Info Start Number Size Offset | |
393 | ==== ===== ====== ==== ====== | |
394 | Local strings 15 65 65 799 | |
395 | Local symbols 6 10 120 508 | |
396 | Line numbers 0 0 0 380 | |
397 | Optimization symbols 0 0 0 0 | |
398 | Procedures 1 0 0 436 | |
399 | Auxiliary symbols 14 25 100 684 | |
400 | Relative Files 0 0 0 0 | |
401 | ||
402 | There are 10 local symbols, starting at 442 | |
403 | ||
404 | Symbol# 0: "/usr/include/stdio.h" | |
405 | End+1 symbol = 10 | |
406 | String index = 1 | |
407 | Storage class = Text Index = 10 | |
408 | Symbol type = File Value = 0 | |
409 | ||
410 | Symbol# 1: "_iobuf" | |
411 | End+1 symbol = 9 | |
412 | String index = 22 | |
413 | Storage class = Info Index = 9 | |
414 | Symbol type = Block Value = 20 | |
415 | ||
416 | Symbol# 2: "_cnt" | |
417 | Type = int | |
418 | String index = 29 | |
419 | Storage class = Info Index = 4 | |
420 | Symbol type = Member Value = 0 | |
421 | ||
422 | Symbol# 3: "_ptr" | |
423 | Type = ptr to char | |
424 | String index = 34 | |
425 | Storage class = Info Index = 15 | |
426 | Symbol type = Member Value = 32 | |
427 | ||
428 | Symbol# 4: "_base" | |
429 | Type = ptr to char | |
430 | String index = 39 | |
431 | Storage class = Info Index = 16 | |
432 | Symbol type = Member Value = 64 | |
433 | ||
434 | Symbol# 5: "_bufsiz" | |
435 | Type = int | |
436 | String index = 45 | |
437 | Storage class = Info Index = 4 | |
438 | Symbol type = Member Value = 96 | |
439 | ||
440 | Symbol# 6: "_flag" | |
441 | Type = short | |
442 | String index = 53 | |
443 | Storage class = Info Index = 3 | |
444 | Symbol type = Member Value = 128 | |
445 | ||
446 | Symbol# 7: "_file" | |
447 | Type = char | |
448 | String index = 59 | |
449 | Storage class = Info Index = 2 | |
450 | Symbol type = Member Value = 144 | |
451 | ||
452 | Symbol# 8: "" | |
453 | First symbol = 1 | |
454 | String index = 0 | |
455 | Storage class = Info Index = 1 | |
456 | Symbol type = End Value = 0 | |
457 | ||
458 | Symbol# 9: "/usr/include/stdio.h" | |
459 | First symbol = 0 | |
460 | String index = 1 | |
461 | Storage class = Text Index = 0 | |
462 | Symbol type = End Value = 0 | |
463 | ||
464 | There are 25 auxiliary table entries, starting at 642. | |
465 | ||
466 | * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] | |
467 | #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] | |
468 | #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] | |
469 | * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] | |
470 | * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] | |
471 | * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] | |
472 | * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] | |
473 | * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] | |
474 | * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
475 | * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] | |
476 | * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] | |
477 | * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
478 | * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
479 | * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
480 | * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
481 | * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
482 | * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
483 | * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
484 | * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
485 | * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
486 | * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
487 | * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
488 | * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
489 | * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
490 | * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] | |
491 | ||
492 | There are 0 procedure descriptor entries, starting at 1. | |
493 | ||
494 | There are 20 external symbols, starting at 1152 | |
495 | ||
496 | Symbol# 0: "_iob" | |
497 | Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } | |
498 | String index = 0 Ifd = 1 | |
499 | Storage class = Nil Index = 17 | |
500 | Symbol type = Global Value = 60 | |
501 | ||
502 | Symbol# 1: "fopen" | |
503 | String index = 5 Ifd = 1 | |
504 | Storage class = Nil Index = 1048575 | |
505 | Symbol type = Proc Value = 0 | |
506 | ||
507 | Symbol# 2: "fdopen" | |
508 | String index = 11 Ifd = 1 | |
509 | Storage class = Nil Index = 1048575 | |
510 | Symbol type = Proc Value = 0 | |
511 | ||
512 | Symbol# 3: "freopen" | |
513 | String index = 18 Ifd = 1 | |
514 | Storage class = Nil Index = 1048575 | |
515 | Symbol type = Proc Value = 0 | |
516 | ||
517 | Symbol# 4: "popen" | |
518 | String index = 26 Ifd = 1 | |
519 | Storage class = Nil Index = 1048575 | |
520 | Symbol type = Proc Value = 0 | |
521 | ||
522 | Symbol# 5: "tmpfile" | |
523 | String index = 32 Ifd = 1 | |
524 | Storage class = Nil Index = 1048575 | |
525 | Symbol type = Proc Value = 0 | |
526 | ||
527 | Symbol# 6: "ftell" | |
528 | String index = 40 Ifd = 1 | |
529 | Storage class = Nil Index = 1048575 | |
530 | Symbol type = Proc Value = 0 | |
531 | ||
532 | Symbol# 7: "rewind" | |
533 | String index = 46 Ifd = 1 | |
534 | Storage class = Nil Index = 1048575 | |
535 | Symbol type = Proc Value = 0 | |
536 | ||
537 | Symbol# 8: "setbuf" | |
538 | String index = 53 Ifd = 1 | |
539 | Storage class = Nil Index = 1048575 | |
540 | Symbol type = Proc Value = 0 | |
541 | ||
542 | Symbol# 9: "setbuffer" | |
543 | String index = 60 Ifd = 1 | |
544 | Storage class = Nil Index = 1048575 | |
545 | Symbol type = Proc Value = 0 | |
546 | ||
547 | Symbol# 10: "setlinebuf" | |
548 | String index = 70 Ifd = 1 | |
549 | Storage class = Nil Index = 1048575 | |
550 | Symbol type = Proc Value = 0 | |
551 | ||
552 | Symbol# 11: "fgets" | |
553 | String index = 81 Ifd = 1 | |
554 | Storage class = Nil Index = 1048575 | |
555 | Symbol type = Proc Value = 0 | |
556 | ||
557 | Symbol# 12: "gets" | |
558 | String index = 87 Ifd = 1 | |
559 | Storage class = Nil Index = 1048575 | |
560 | Symbol type = Proc Value = 0 | |
561 | ||
562 | Symbol# 13: "ctermid" | |
563 | String index = 92 Ifd = 1 | |
564 | Storage class = Nil Index = 1048575 | |
565 | Symbol type = Proc Value = 0 | |
566 | ||
567 | Symbol# 14: "cuserid" | |
568 | String index = 100 Ifd = 1 | |
569 | Storage class = Nil Index = 1048575 | |
570 | Symbol type = Proc Value = 0 | |
571 | ||
572 | Symbol# 15: "tempnam" | |
573 | String index = 108 Ifd = 1 | |
574 | Storage class = Nil Index = 1048575 | |
575 | Symbol type = Proc Value = 0 | |
576 | ||
577 | Symbol# 16: "tmpnam" | |
578 | String index = 116 Ifd = 1 | |
579 | Storage class = Nil Index = 1048575 | |
580 | Symbol type = Proc Value = 0 | |
581 | ||
582 | Symbol# 17: "sprintf" | |
583 | String index = 123 Ifd = 1 | |
584 | Storage class = Nil Index = 1048575 | |
585 | Symbol type = Proc Value = 0 | |
586 | ||
587 | Symbol# 18: "main" | |
588 | Type = int | |
589 | String index = 131 Ifd = 0 | |
590 | Storage class = Text Index = 1 | |
591 | Symbol type = Proc Value = 0 | |
592 | ||
593 | Symbol# 19: "printf" | |
594 | String index = 136 Ifd = 0 | |
595 | Storage class = Undefined Index = 1048575 | |
596 | Symbol type = Proc Value = 0 | |
597 | ||
598 | The following auxiliary table entries were unused: | |
599 | ||
600 | #0 0 0x00000000 void | |
601 | #2 8 0x00000008 char | |
602 | #3 16 0x00000010 short | |
603 | #4 24 0x00000018 int | |
604 | #5 32 0x00000020 long | |
605 | #6 40 0x00000028 float | |
606 | #7 44 0x0000002c double | |
607 | #8 12 0x0000000c unsigned char | |
608 | #9 20 0x00000014 unsigned short | |
609 | #10 28 0x0000001c unsigned int | |
610 | #11 36 0x00000024 unsigned long | |
611 | #14 0 0x00000000 void | |
612 | #15 24 0x00000018 int | |
613 | #19 32 0x00000020 long | |
614 | #20 40 0x00000028 float | |
615 | #21 44 0x0000002c double | |
616 | #22 12 0x0000000c unsigned char | |
617 | #23 20 0x00000014 unsigned short | |
618 | #24 28 0x0000001c unsigned int | |
619 | #25 36 0x00000024 unsigned long | |
620 | #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } | |
621 | */ | |
622 | \f | |
623 | /* Redefinition of of storage classes as an enumeration for better | |
624 | debugging. */ | |
625 | ||
626 | typedef enum sc { | |
627 | sc_Nil = scNil, /* no storage class */ | |
628 | sc_Text = scText, /* text symbol */ | |
629 | sc_Data = scData, /* initialized data symbol */ | |
630 | sc_Bss = scBss, /* un-initialized data symbol */ | |
631 | sc_Register = scRegister, /* value of symbol is register number */ | |
632 | sc_Abs = scAbs, /* value of symbol is absolute */ | |
633 | sc_Undefined = scUndefined, /* who knows? */ | |
634 | sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ | |
635 | sc_Bits = scBits, /* this is a bit field */ | |
636 | sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ | |
637 | sc_RegImage = scRegImage, /* register value saved on stack */ | |
638 | sc_Info = scInfo, /* symbol contains debugger information */ | |
639 | sc_UserStruct = scUserStruct, /* addr in struct user for current process */ | |
640 | sc_SData = scSData, /* load time only small data */ | |
641 | sc_SBss = scSBss, /* load time only small common */ | |
642 | sc_RData = scRData, /* load time only read only data */ | |
643 | sc_Var = scVar, /* Var parameter (fortran,pascal) */ | |
644 | sc_Common = scCommon, /* common variable */ | |
645 | sc_SCommon = scSCommon, /* small common */ | |
646 | sc_VarRegister = scVarRegister, /* Var parameter in a register */ | |
647 | sc_Variant = scVariant, /* Variant record */ | |
648 | sc_SUndefined = scSUndefined, /* small undefined(external) data */ | |
649 | sc_Init = scInit, /* .init section symbol */ | |
650 | sc_Max = scMax /* Max storage class+1 */ | |
651 | } sc_t; | |
652 | ||
653 | /* Redefinition of symbol type. */ | |
654 | ||
655 | typedef enum st { | |
656 | st_Nil = stNil, /* Nuthin' special */ | |
657 | st_Global = stGlobal, /* external symbol */ | |
658 | st_Static = stStatic, /* static */ | |
659 | st_Param = stParam, /* procedure argument */ | |
660 | st_Local = stLocal, /* local variable */ | |
661 | st_Label = stLabel, /* label */ | |
662 | st_Proc = stProc, /* " " Procedure */ | |
663 | st_Block = stBlock, /* beginning of block */ | |
664 | st_End = stEnd, /* end (of anything) */ | |
665 | st_Member = stMember, /* member (of anything - struct/union/enum */ | |
666 | st_Typedef = stTypedef, /* type definition */ | |
667 | st_File = stFile, /* file name */ | |
668 | st_RegReloc = stRegReloc, /* register relocation */ | |
669 | st_Forward = stForward, /* forwarding address */ | |
670 | st_StaticProc = stStaticProc, /* load time only static procs */ | |
671 | st_Constant = stConstant, /* const */ | |
672 | st_Str = stStr, /* string */ | |
673 | st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ | |
674 | st_Expr = stExpr, /* 2+2 vs. 4 */ | |
675 | st_Type = stType, /* post-coercion SER */ | |
676 | st_Max = stMax /* max type+1 */ | |
677 | } st_t; | |
678 | ||
679 | /* Redefinition of type qualifiers. */ | |
680 | ||
681 | typedef enum tq { | |
682 | tq_Nil = tqNil, /* bt is what you see */ | |
683 | tq_Ptr = tqPtr, /* pointer */ | |
684 | tq_Proc = tqProc, /* procedure */ | |
685 | tq_Array = tqArray, /* duh */ | |
686 | tq_Far = tqFar, /* longer addressing - 8086/8 land */ | |
687 | tq_Vol = tqVol, /* volatile */ | |
688 | tq_Max = tqMax /* Max type qualifier+1 */ | |
689 | } tq_t; | |
690 | ||
691 | /* Redefinition of basic types. */ | |
692 | ||
693 | typedef enum bt { | |
694 | bt_Nil = btNil, /* undefined */ | |
695 | bt_Adr = btAdr, /* address - integer same size as pointer */ | |
696 | bt_Char = btChar, /* character */ | |
697 | bt_UChar = btUChar, /* unsigned character */ | |
698 | bt_Short = btShort, /* short */ | |
699 | bt_UShort = btUShort, /* unsigned short */ | |
700 | bt_Int = btInt, /* int */ | |
701 | bt_UInt = btUInt, /* unsigned int */ | |
702 | bt_Long = btLong, /* long */ | |
703 | bt_ULong = btULong, /* unsigned long */ | |
704 | bt_Float = btFloat, /* float (real) */ | |
705 | bt_Double = btDouble, /* Double (real) */ | |
706 | bt_Struct = btStruct, /* Structure (Record) */ | |
707 | bt_Union = btUnion, /* Union (variant) */ | |
708 | bt_Enum = btEnum, /* Enumerated */ | |
709 | bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ | |
710 | bt_Range = btRange, /* subrange of int */ | |
711 | bt_Set = btSet, /* pascal sets */ | |
712 | bt_Complex = btComplex, /* fortran complex */ | |
713 | bt_DComplex = btDComplex, /* fortran double complex */ | |
714 | bt_Indirect = btIndirect, /* forward or unnamed typedef */ | |
715 | bt_FixedDec = btFixedDec, /* Fixed Decimal */ | |
716 | bt_FloatDec = btFloatDec, /* Float Decimal */ | |
717 | bt_String = btString, /* Varying Length Character String */ | |
718 | bt_Bit = btBit, /* Aligned Bit String */ | |
719 | bt_Picture = btPicture, /* Picture */ | |
720 | bt_Void = btVoid, /* Void */ | |
721 | bt_Max = btMax /* Max basic type+1 */ | |
722 | } bt_t; | |
723 | ||
724 | #define N_TQ itqMax | |
725 | ||
726 | /* States for whether to hash type or not. */ | |
727 | typedef enum hash_state { | |
728 | hash_no = 0, /* don't hash type */ | |
729 | hash_yes = 1, /* ok to hash type, or use previous hash */ | |
730 | hash_record = 2 /* ok to record hash, but don't use prev. */ | |
731 | } hash_state_t; | |
732 | ||
733 | /* Types of different sized allocation requests. */ | |
734 | enum alloc_type { | |
735 | alloc_type_none, /* dummy value */ | |
736 | alloc_type_scope, /* nested scopes linked list */ | |
737 | alloc_type_vlinks, /* glue linking pages in varray */ | |
738 | alloc_type_shash, /* string hash element */ | |
739 | alloc_type_thash, /* type hash element */ | |
740 | alloc_type_tag, /* struct/union/tag element */ | |
741 | alloc_type_forward, /* element to hold unknown tag */ | |
742 | alloc_type_thead, /* head of type hash list */ | |
743 | alloc_type_varray, /* general varray allocation */ | |
744 | alloc_type_lineno, /* line number list */ | |
745 | alloc_type_last /* last+1 element for array bounds */ | |
746 | }; | |
747 | ||
748 | /* Types of auxiliary type information. */ | |
749 | enum aux_type { | |
750 | aux_tir, /* TIR type information */ | |
751 | aux_rndx, /* relative index into symbol table */ | |
752 | aux_dnLow, /* low dimension */ | |
753 | aux_dnHigh, /* high dimension */ | |
754 | aux_isym, /* symbol table index (end of proc) */ | |
755 | aux_iss, /* index into string space (not used) */ | |
756 | aux_width, /* width for non-default sized struc fields */ | |
757 | aux_count /* count of ranges for variant arm */ | |
758 | }; | |
759 | \f | |
760 | /* Structures to provide n-number of virtual arrays, each of which can | |
761 | grow linearly, and which are written in the object file as | |
762 | sequential pages. On systems with a BSD malloc, the | |
763 | MAX_CLUSTER_PAGES should be 1 less than a power of two, since | |
764 | malloc adds it's overhead, and rounds up to the next power of 2. | |
765 | Pages are linked together via a linked list. | |
766 | ||
767 | If PAGE_SIZE is > 4096, the string length in the shash_t structure | |
768 | can't be represented (assuming there are strings > 4096 bytes). */ | |
769 | ||
770 | #ifndef PAGE_SIZE | |
771 | #define PAGE_SIZE 4096 /* size of varray pages */ | |
772 | #endif | |
773 | ||
774 | #define PAGE_USIZE ((unsigned long) PAGE_SIZE) | |
775 | ||
776 | ||
777 | #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ | |
778 | #define MAX_CLUSTER_PAGES 63 | |
779 | #endif | |
780 | ||
781 | ||
782 | /* Linked list connecting separate page allocations. */ | |
783 | typedef struct vlinks { | |
784 | struct vlinks *prev; /* previous set of pages */ | |
785 | struct vlinks *next; /* next set of pages */ | |
786 | union page *datum; /* start of page */ | |
787 | unsigned long start_index; /* starting index # of page */ | |
788 | } vlinks_t; | |
789 | ||
790 | ||
791 | /* Virtual array header. */ | |
792 | typedef struct varray { | |
793 | vlinks_t *first; /* first page link */ | |
794 | vlinks_t *last; /* last page link */ | |
795 | unsigned long num_allocated; /* # objects allocated */ | |
796 | unsigned short object_size; /* size in bytes of each object */ | |
797 | unsigned short objects_per_page; /* # objects that can fit on a page */ | |
798 | unsigned short objects_last_page; /* # objects allocated on last page */ | |
799 | } varray_t; | |
800 | ||
801 | #ifndef MALLOC_CHECK | |
802 | #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) | |
803 | #else | |
804 | #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) | |
805 | #endif | |
806 | ||
807 | #define INIT_VARRAY(type) { /* macro to initialize a varray */ \ | |
808 | (vlinks_t *)0, /* first */ \ | |
809 | (vlinks_t *)0, /* last */ \ | |
810 | 0, /* num_allocated */ \ | |
811 | sizeof (type), /* object_size */ \ | |
812 | OBJECTS_PER_PAGE (type), /* objects_per_page */ \ | |
813 | OBJECTS_PER_PAGE (type), /* objects_last_page */ \ | |
814 | } | |
815 | ||
816 | ||
817 | /* Master type for indexes within the symbol table. */ | |
818 | typedef unsigned long symint_t; | |
819 | ||
820 | ||
821 | /* Linked list support for nested scopes (file, block, structure, etc.). */ | |
822 | typedef struct scope { | |
823 | struct scope *prev; /* previous scope level */ | |
824 | struct scope *free; /* free list pointer */ | |
825 | struct localsym *lsym; /* pointer to local symbol node */ | |
826 | st_t type; /* type of the node */ | |
827 | } scope_t; | |
828 | ||
829 | ||
830 | /* For a local symbol we store a gas symbol as well as the debugging | |
831 | information we generate. The gas symbol will be NULL if this is | |
832 | only a debugging symbol. */ | |
833 | typedef struct localsym { | |
834 | const char *name; /* symbol name */ | |
835 | symbolS *as_sym; /* symbol as seen by gas */ | |
836 | struct efdr *file_ptr; /* file pointer */ | |
837 | struct ecoff_proc *proc_ptr; /* proc pointer */ | |
838 | struct localsym *begin_ptr; /* symbol at start of block */ | |
839 | struct ecoff_aux *index_ptr; /* index value to be filled in */ | |
840 | struct forward *forward_ref; /* forward references to this symbol */ | |
841 | long sym_index; /* final symbol index */ | |
842 | EXTR ecoff_sym; /* ECOFF debugging symbol */ | |
843 | } localsym_t; | |
844 | ||
845 | ||
846 | /* For aux information we keep the type and the data. */ | |
847 | typedef struct ecoff_aux { | |
848 | enum aux_type type; /* aux type */ | |
849 | AUXU data; /* aux data */ | |
850 | } aux_t; | |
851 | ||
852 | /* For a procedure we store the gas symbol as well as the PDR | |
853 | debugging information. */ | |
854 | typedef struct ecoff_proc { | |
855 | localsym_t *sym; /* associated symbol */ | |
856 | PDR pdr; /* ECOFF debugging info */ | |
857 | } proc_t; | |
858 | ||
859 | /* Number of proc_t structures allocated. */ | |
860 | static unsigned long proc_cnt; | |
861 | ||
862 | ||
863 | /* Forward reference list for tags referenced, but not yet defined. */ | |
864 | typedef struct forward { | |
865 | struct forward *next; /* next forward reference */ | |
866 | struct forward *free; /* free list pointer */ | |
867 | aux_t *ifd_ptr; /* pointer to store file index */ | |
868 | aux_t *index_ptr; /* pointer to store symbol index */ | |
869 | } forward_t; | |
870 | ||
871 | ||
872 | /* Linked list support for tags. The first tag in the list is always | |
873 | the current tag for that block. */ | |
874 | typedef struct tag { | |
875 | struct tag *free; /* free list pointer */ | |
876 | struct shash *hash_ptr; /* pointer to the hash table head */ | |
877 | struct tag *same_name; /* tag with same name in outer scope */ | |
878 | struct tag *same_block; /* next tag defined in the same block. */ | |
879 | struct forward *forward_ref; /* list of forward references */ | |
880 | bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ | |
881 | symint_t ifd; /* file # tag defined in */ | |
882 | localsym_t *sym; /* file's local symbols */ | |
883 | } tag_t; | |
884 | ||
885 | ||
886 | /* Head of a block's linked list of tags. */ | |
887 | typedef struct thead { | |
888 | struct thead *prev; /* previous block */ | |
889 | struct thead *free; /* free list pointer */ | |
890 | struct tag *first_tag; /* first tag in block defined */ | |
891 | } thead_t; | |
892 | ||
893 | ||
894 | /* Union containing pointers to each the small structures which are freed up. */ | |
895 | typedef union small_free { | |
896 | scope_t *f_scope; /* scope structure */ | |
897 | thead_t *f_thead; /* tag head structure */ | |
898 | tag_t *f_tag; /* tag element structure */ | |
899 | forward_t *f_forward; /* forward tag reference */ | |
900 | } small_free_t; | |
901 | ||
902 | ||
903 | /* String hash table entry. */ | |
904 | ||
905 | typedef struct shash { | |
906 | char *string; /* string we are hashing */ | |
907 | symint_t indx; /* index within string table */ | |
908 | EXTR *esym_ptr; /* global symbol pointer */ | |
909 | localsym_t *sym_ptr; /* local symbol pointer */ | |
910 | localsym_t *end_ptr; /* symbol pointer to end block */ | |
911 | tag_t *tag_ptr; /* tag pointer */ | |
912 | proc_t *proc_ptr; /* procedure descriptor pointer */ | |
913 | } shash_t; | |
914 | ||
915 | ||
916 | /* Type hash table support. The size of the hash table must fit | |
917 | within a page with the other extended file descriptor information. | |
918 | Because unique types which are hashed are fewer in number than | |
919 | strings, we use a smaller hash value. */ | |
920 | ||
921 | #define HASHBITS 30 | |
922 | ||
923 | #ifndef THASH_SIZE | |
924 | #define THASH_SIZE 113 | |
925 | #endif | |
926 | ||
927 | typedef struct thash { | |
928 | struct thash *next; /* next hash value */ | |
929 | AUXU type; /* type we are hashing */ | |
930 | symint_t indx; /* index within string table */ | |
931 | } thash_t; | |
932 | ||
933 | ||
934 | /* Extended file descriptor that contains all of the support necessary | |
935 | to add things to each file separately. */ | |
936 | typedef struct efdr { | |
937 | FDR fdr; /* File header to be written out */ | |
938 | FDR *orig_fdr; /* original file header */ | |
939 | char *name; /* filename */ | |
940 | symint_t void_type; /* aux. pointer to 'void' type */ | |
941 | symint_t int_type; /* aux. pointer to 'int' type */ | |
942 | scope_t *cur_scope; /* current nested scopes */ | |
943 | symint_t file_index; /* current file number */ | |
944 | int nested_scopes; /* # nested scopes */ | |
945 | varray_t strings; /* local strings */ | |
946 | varray_t symbols; /* local symbols */ | |
947 | varray_t procs; /* procedures */ | |
948 | varray_t aux_syms; /* auxiliary symbols */ | |
949 | struct efdr *next_file; /* next file descriptor */ | |
950 | /* string/type hash tables */ | |
951 | struct hash_control *str_hash; /* string hash table */ | |
952 | thash_t *thash_head[THASH_SIZE]; | |
953 | } efdr_t; | |
954 | ||
955 | /* Pre-initialized extended file structure. */ | |
012353f7 | 956 | static const efdr_t init_file = |
9faec336 ILT |
957 | { |
958 | { /* FDR structure */ | |
959 | 0, /* adr: memory address of beginning of file */ | |
960 | 0, /* rss: file name (of source, if known) */ | |
961 | 0, /* issBase: file's string space */ | |
962 | 0, /* cbSs: number of bytes in the ss */ | |
963 | 0, /* isymBase: beginning of symbols */ | |
964 | 0, /* csym: count file's of symbols */ | |
965 | 0, /* ilineBase: file's line symbols */ | |
966 | 0, /* cline: count of file's line symbols */ | |
967 | 0, /* ioptBase: file's optimization entries */ | |
968 | 0, /* copt: count of file's optimization entries */ | |
969 | 0, /* ipdFirst: start of procedures for this file */ | |
970 | 0, /* cpd: count of procedures for this file */ | |
971 | 0, /* iauxBase: file's auxiliary entries */ | |
972 | 0, /* caux: count of file's auxiliary entries */ | |
973 | 0, /* rfdBase: index into the file indirect table */ | |
974 | 0, /* crfd: count file indirect entries */ | |
975 | langC, /* lang: language for this file */ | |
976 | 0, /* fMerge: whether this file can be merged */ | |
977 | 0, /* fReadin: true if read in (not just created) */ | |
978 | #ifdef TARGET_BYTES_BIG_ENDIAN | |
979 | 1, /* fBigendian: if 1, compiled on big endian machine */ | |
980 | #else | |
981 | 0, /* fBigendian: if 1, compiled on big endian machine */ | |
982 | #endif | |
983 | GLEVEL_2, /* glevel: level this file was compiled with */ | |
984 | 0, /* reserved: reserved for future use */ | |
985 | 0, /* cbLineOffset: byte offset from header for this file ln's */ | |
986 | 0, /* cbLine: size of lines for this file */ | |
987 | }, | |
988 | ||
989 | (FDR *)0, /* orig_fdr: original file header pointer */ | |
990 | (char *)0, /* name: pointer to filename */ | |
991 | 0, /* void_type: ptr to aux node for void type */ | |
992 | 0, /* int_type: ptr to aux node for int type */ | |
993 | (scope_t *)0, /* cur_scope: current scope being processed */ | |
994 | 0, /* file_index: current file # */ | |
995 | 0, /* nested_scopes: # nested scopes */ | |
996 | INIT_VARRAY (char), /* strings: local string varray */ | |
997 | INIT_VARRAY (localsym_t), /* symbols: local symbols varray */ | |
998 | INIT_VARRAY (proc_t), /* procs: procedure varray */ | |
999 | INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */ | |
1000 | ||
1001 | (struct efdr *)0, /* next_file: next file structure */ | |
1002 | ||
1003 | (struct hash_control *)0, /* str_hash: string hash table */ | |
1004 | { 0 }, /* thash_head: type hash table */ | |
1005 | }; | |
1006 | ||
1007 | ||
1008 | static efdr_t *first_file; /* first file descriptor */ | |
1009 | static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ | |
1010 | ||
1011 | ||
1012 | /* Line number information is kept in a list until the assembly is | |
1013 | finished. */ | |
1014 | typedef struct lineno_list { | |
1015 | struct lineno_list *next; /* next element in list */ | |
1016 | efdr_t *file; /* file this line is in */ | |
1017 | proc_t *proc; /* procedure this line is in */ | |
1018 | fragS *frag; /* fragment this line number is in */ | |
1019 | unsigned long paddr; /* offset within fragment */ | |
1020 | long lineno; /* actual line number */ | |
1021 | } lineno_list_t; | |
1022 | ||
1023 | static lineno_list_t *first_lineno; | |
1024 | static lineno_list_t **last_lineno_ptr = &first_lineno; | |
1025 | ||
1026 | /* Sometimes there will be some .loc statements before a .ent. We | |
1027 | keep them in this list so that we can fill in the procedure pointer | |
1028 | after we see the .ent. */ | |
1029 | static lineno_list_t *noproc_lineno; | |
1030 | ||
1031 | /* Union of various things that are held in pages. */ | |
1032 | typedef union page { | |
1033 | char byte [ PAGE_SIZE ]; | |
1034 | unsigned char ubyte [ PAGE_SIZE ]; | |
1035 | efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; | |
1036 | FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; | |
1037 | proc_t proc [ PAGE_SIZE / sizeof (proc_t) ]; | |
1038 | localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ]; | |
1039 | aux_t aux [ PAGE_SIZE / sizeof (aux_t) ]; | |
1040 | DNR dense [ PAGE_SIZE / sizeof (DNR) ]; | |
1041 | scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; | |
1042 | vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; | |
1043 | shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; | |
1044 | thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; | |
1045 | tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; | |
1046 | forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; | |
1047 | thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; | |
1048 | lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ]; | |
1049 | } page_t; | |
1050 | ||
1051 | ||
1052 | /* Structure holding allocation information for small sized structures. */ | |
1053 | typedef struct alloc_info { | |
1054 | char *alloc_name; /* name of this allocation type (must be first) */ | |
1055 | page_t *cur_page; /* current page being allocated from */ | |
1056 | small_free_t free_list; /* current free list if any */ | |
1057 | int unallocated; /* number of elements unallocated on page */ | |
1058 | int total_alloc; /* total number of allocations */ | |
1059 | int total_free; /* total number of frees */ | |
1060 | int total_pages; /* total number of pages allocated */ | |
1061 | } alloc_info_t; | |
1062 | ||
1063 | ||
1064 | /* Type information collected together. */ | |
1065 | typedef struct type_info { | |
1066 | bt_t basic_type; /* basic type */ | |
1067 | int orig_type; /* original COFF-based type */ | |
1068 | int num_tq; /* # type qualifiers */ | |
1069 | int num_dims; /* # dimensions */ | |
1070 | int num_sizes; /* # sizes */ | |
1071 | int extra_sizes; /* # extra sizes not tied with dims */ | |
1072 | tag_t * tag_ptr; /* tag pointer */ | |
1073 | int bitfield; /* symbol is a bitfield */ | |
1074 | tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ | |
1075 | symint_t dimensions [N_TQ]; /* dimensions for each array */ | |
1076 | symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of | |
1077 | struct/union/enum + bitfield size */ | |
1078 | } type_info_t; | |
1079 | ||
1080 | /* Pre-initialized type_info struct. */ | |
1081 | static const type_info_t type_info_init = { | |
1082 | bt_Nil, /* basic type */ | |
1083 | T_NULL, /* original COFF-based type */ | |
1084 | 0, /* # type qualifiers */ | |
1085 | 0, /* # dimensions */ | |
1086 | 0, /* # sizes */ | |
1087 | 0, /* sizes not tied with dims */ | |
1088 | NULL, /* ptr to tag */ | |
1089 | 0, /* bitfield */ | |
1090 | { /* type qualifiers */ | |
1091 | tq_Nil, | |
1092 | tq_Nil, | |
1093 | tq_Nil, | |
1094 | tq_Nil, | |
1095 | tq_Nil, | |
1096 | tq_Nil, | |
1097 | }, | |
1098 | { /* dimensions */ | |
1099 | 0, | |
1100 | 0, | |
1101 | 0, | |
1102 | 0, | |
1103 | 0, | |
1104 | 0 | |
1105 | }, | |
1106 | { /* sizes */ | |
1107 | 0, | |
1108 | 0, | |
1109 | 0, | |
1110 | 0, | |
1111 | 0, | |
1112 | 0, | |
1113 | 0, | |
1114 | 0, | |
1115 | }, | |
1116 | }; | |
1117 | ||
1118 | /* Global hash table for the tags table and global table for file | |
1119 | descriptors. */ | |
1120 | ||
1121 | static varray_t file_desc = INIT_VARRAY (efdr_t); | |
1122 | ||
1123 | static struct hash_control *tag_hash; | |
1124 | ||
1125 | /* Static types for int and void. Also, remember the last function's | |
1126 | type (which is set up when we encounter the declaration for the | |
1127 | function, and used when the end block for the function is emitted. */ | |
1128 | ||
1129 | static type_info_t int_type_info; | |
1130 | static type_info_t void_type_info; | |
1131 | static type_info_t last_func_type_info; | |
1132 | static symbolS *last_func_sym_value; | |
1133 | ||
1134 | ||
1135 | /* Convert COFF basic type to ECOFF basic type. The T_NULL type | |
1136 | really should use bt_Void, but this causes the current ecoff GDB to | |
1137 | issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS | |
1138 | 2.0) doesn't understand it, even though the compiler generates it. | |
1139 | Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler | |
1140 | suite, but for now go with what works. | |
1141 | ||
1142 | It would make sense for the .type and .scl directives to use the | |
1143 | ECOFF numbers directly, rather than using the COFF numbers and | |
1144 | mapping them. Unfortunately, this is historically what mips-tfile | |
1145 | expects, and changing gcc now would be a considerable pain (the | |
1146 | native compiler generates debugging information internally, rather | |
1147 | than via the assembler, so it will never use .type or .scl). */ | |
1148 | ||
1149 | static const bt_t map_coff_types[] = { | |
1150 | bt_Nil, /* T_NULL */ | |
1151 | bt_Nil, /* T_ARG */ | |
1152 | bt_Char, /* T_CHAR */ | |
1153 | bt_Short, /* T_SHORT */ | |
1154 | bt_Int, /* T_INT */ | |
1155 | bt_Long, /* T_LONG */ | |
1156 | bt_Float, /* T_FLOAT */ | |
1157 | bt_Double, /* T_DOUBLE */ | |
1158 | bt_Struct, /* T_STRUCT */ | |
1159 | bt_Union, /* T_UNION */ | |
1160 | bt_Enum, /* T_ENUM */ | |
1161 | bt_Enum, /* T_MOE */ | |
1162 | bt_UChar, /* T_UCHAR */ | |
1163 | bt_UShort, /* T_USHORT */ | |
1164 | bt_UInt, /* T_UINT */ | |
1165 | bt_ULong /* T_ULONG */ | |
1166 | }; | |
1167 | ||
1168 | /* Convert COFF storage class to ECOFF storage class. */ | |
1169 | static const sc_t map_coff_storage[] = { | |
1170 | sc_Nil, /* 0: C_NULL */ | |
1171 | sc_Abs, /* 1: C_AUTO auto var */ | |
1172 | sc_Undefined, /* 2: C_EXT external */ | |
1173 | sc_Data, /* 3: C_STAT static */ | |
1174 | sc_Register, /* 4: C_REG register */ | |
1175 | sc_Undefined, /* 5: C_EXTDEF ??? */ | |
1176 | sc_Text, /* 6: C_LABEL label */ | |
1177 | sc_Text, /* 7: C_ULABEL user label */ | |
1178 | sc_Info, /* 8: C_MOS member of struct */ | |
1179 | sc_Abs, /* 9: C_ARG argument */ | |
1180 | sc_Info, /* 10: C_STRTAG struct tag */ | |
1181 | sc_Info, /* 11: C_MOU member of union */ | |
1182 | sc_Info, /* 12: C_UNTAG union tag */ | |
1183 | sc_Info, /* 13: C_TPDEF typedef */ | |
1184 | sc_Data, /* 14: C_USTATIC ??? */ | |
1185 | sc_Info, /* 15: C_ENTAG enum tag */ | |
1186 | sc_Info, /* 16: C_MOE member of enum */ | |
1187 | sc_Register, /* 17: C_REGPARM register parameter */ | |
1188 | sc_Bits, /* 18; C_FIELD bitfield */ | |
1189 | sc_Nil, /* 19 */ | |
1190 | sc_Nil, /* 20 */ | |
1191 | sc_Nil, /* 21 */ | |
1192 | sc_Nil, /* 22 */ | |
1193 | sc_Nil, /* 23 */ | |
1194 | sc_Nil, /* 24 */ | |
1195 | sc_Nil, /* 25 */ | |
1196 | sc_Nil, /* 26 */ | |
1197 | sc_Nil, /* 27 */ | |
1198 | sc_Nil, /* 28 */ | |
1199 | sc_Nil, /* 29 */ | |
1200 | sc_Nil, /* 30 */ | |
1201 | sc_Nil, /* 31 */ | |
1202 | sc_Nil, /* 32 */ | |
1203 | sc_Nil, /* 33 */ | |
1204 | sc_Nil, /* 34 */ | |
1205 | sc_Nil, /* 35 */ | |
1206 | sc_Nil, /* 36 */ | |
1207 | sc_Nil, /* 37 */ | |
1208 | sc_Nil, /* 38 */ | |
1209 | sc_Nil, /* 39 */ | |
1210 | sc_Nil, /* 40 */ | |
1211 | sc_Nil, /* 41 */ | |
1212 | sc_Nil, /* 42 */ | |
1213 | sc_Nil, /* 43 */ | |
1214 | sc_Nil, /* 44 */ | |
1215 | sc_Nil, /* 45 */ | |
1216 | sc_Nil, /* 46 */ | |
1217 | sc_Nil, /* 47 */ | |
1218 | sc_Nil, /* 48 */ | |
1219 | sc_Nil, /* 49 */ | |
1220 | sc_Nil, /* 50 */ | |
1221 | sc_Nil, /* 51 */ | |
1222 | sc_Nil, /* 52 */ | |
1223 | sc_Nil, /* 53 */ | |
1224 | sc_Nil, /* 54 */ | |
1225 | sc_Nil, /* 55 */ | |
1226 | sc_Nil, /* 56 */ | |
1227 | sc_Nil, /* 57 */ | |
1228 | sc_Nil, /* 58 */ | |
1229 | sc_Nil, /* 59 */ | |
1230 | sc_Nil, /* 60 */ | |
1231 | sc_Nil, /* 61 */ | |
1232 | sc_Nil, /* 62 */ | |
1233 | sc_Nil, /* 63 */ | |
1234 | sc_Nil, /* 64 */ | |
1235 | sc_Nil, /* 65 */ | |
1236 | sc_Nil, /* 66 */ | |
1237 | sc_Nil, /* 67 */ | |
1238 | sc_Nil, /* 68 */ | |
1239 | sc_Nil, /* 69 */ | |
1240 | sc_Nil, /* 70 */ | |
1241 | sc_Nil, /* 71 */ | |
1242 | sc_Nil, /* 72 */ | |
1243 | sc_Nil, /* 73 */ | |
1244 | sc_Nil, /* 74 */ | |
1245 | sc_Nil, /* 75 */ | |
1246 | sc_Nil, /* 76 */ | |
1247 | sc_Nil, /* 77 */ | |
1248 | sc_Nil, /* 78 */ | |
1249 | sc_Nil, /* 79 */ | |
1250 | sc_Nil, /* 80 */ | |
1251 | sc_Nil, /* 81 */ | |
1252 | sc_Nil, /* 82 */ | |
1253 | sc_Nil, /* 83 */ | |
1254 | sc_Nil, /* 84 */ | |
1255 | sc_Nil, /* 85 */ | |
1256 | sc_Nil, /* 86 */ | |
1257 | sc_Nil, /* 87 */ | |
1258 | sc_Nil, /* 88 */ | |
1259 | sc_Nil, /* 89 */ | |
1260 | sc_Nil, /* 90 */ | |
1261 | sc_Nil, /* 91 */ | |
1262 | sc_Nil, /* 92 */ | |
1263 | sc_Nil, /* 93 */ | |
1264 | sc_Nil, /* 94 */ | |
1265 | sc_Nil, /* 95 */ | |
1266 | sc_Nil, /* 96 */ | |
1267 | sc_Nil, /* 97 */ | |
1268 | sc_Nil, /* 98 */ | |
1269 | sc_Nil, /* 99 */ | |
1270 | sc_Text, /* 100: C_BLOCK block start/end */ | |
1271 | sc_Text, /* 101: C_FCN function start/end */ | |
1272 | sc_Info, /* 102: C_EOS end of struct/union/enum */ | |
1273 | sc_Nil, /* 103: C_FILE file start */ | |
1274 | sc_Nil, /* 104: C_LINE line number */ | |
1275 | sc_Nil, /* 105: C_ALIAS combined type info */ | |
1276 | sc_Nil, /* 106: C_HIDDEN ??? */ | |
1277 | }; | |
1278 | ||
1279 | /* Convert COFF storage class to ECOFF symbol type. */ | |
1280 | static const st_t map_coff_sym_type[] = { | |
1281 | st_Nil, /* 0: C_NULL */ | |
1282 | st_Local, /* 1: C_AUTO auto var */ | |
1283 | st_Global, /* 2: C_EXT external */ | |
1284 | st_Static, /* 3: C_STAT static */ | |
1285 | st_Local, /* 4: C_REG register */ | |
1286 | st_Global, /* 5: C_EXTDEF ??? */ | |
1287 | st_Label, /* 6: C_LABEL label */ | |
1288 | st_Label, /* 7: C_ULABEL user label */ | |
1289 | st_Member, /* 8: C_MOS member of struct */ | |
1290 | st_Param, /* 9: C_ARG argument */ | |
1291 | st_Block, /* 10: C_STRTAG struct tag */ | |
1292 | st_Member, /* 11: C_MOU member of union */ | |
1293 | st_Block, /* 12: C_UNTAG union tag */ | |
1294 | st_Typedef, /* 13: C_TPDEF typedef */ | |
1295 | st_Static, /* 14: C_USTATIC ??? */ | |
1296 | st_Block, /* 15: C_ENTAG enum tag */ | |
1297 | st_Member, /* 16: C_MOE member of enum */ | |
1298 | st_Param, /* 17: C_REGPARM register parameter */ | |
1299 | st_Member, /* 18; C_FIELD bitfield */ | |
1300 | st_Nil, /* 19 */ | |
1301 | st_Nil, /* 20 */ | |
1302 | st_Nil, /* 21 */ | |
1303 | st_Nil, /* 22 */ | |
1304 | st_Nil, /* 23 */ | |
1305 | st_Nil, /* 24 */ | |
1306 | st_Nil, /* 25 */ | |
1307 | st_Nil, /* 26 */ | |
1308 | st_Nil, /* 27 */ | |
1309 | st_Nil, /* 28 */ | |
1310 | st_Nil, /* 29 */ | |
1311 | st_Nil, /* 30 */ | |
1312 | st_Nil, /* 31 */ | |
1313 | st_Nil, /* 32 */ | |
1314 | st_Nil, /* 33 */ | |
1315 | st_Nil, /* 34 */ | |
1316 | st_Nil, /* 35 */ | |
1317 | st_Nil, /* 36 */ | |
1318 | st_Nil, /* 37 */ | |
1319 | st_Nil, /* 38 */ | |
1320 | st_Nil, /* 39 */ | |
1321 | st_Nil, /* 40 */ | |
1322 | st_Nil, /* 41 */ | |
1323 | st_Nil, /* 42 */ | |
1324 | st_Nil, /* 43 */ | |
1325 | st_Nil, /* 44 */ | |
1326 | st_Nil, /* 45 */ | |
1327 | st_Nil, /* 46 */ | |
1328 | st_Nil, /* 47 */ | |
1329 | st_Nil, /* 48 */ | |
1330 | st_Nil, /* 49 */ | |
1331 | st_Nil, /* 50 */ | |
1332 | st_Nil, /* 51 */ | |
1333 | st_Nil, /* 52 */ | |
1334 | st_Nil, /* 53 */ | |
1335 | st_Nil, /* 54 */ | |
1336 | st_Nil, /* 55 */ | |
1337 | st_Nil, /* 56 */ | |
1338 | st_Nil, /* 57 */ | |
1339 | st_Nil, /* 58 */ | |
1340 | st_Nil, /* 59 */ | |
1341 | st_Nil, /* 60 */ | |
1342 | st_Nil, /* 61 */ | |
1343 | st_Nil, /* 62 */ | |
1344 | st_Nil, /* 63 */ | |
1345 | st_Nil, /* 64 */ | |
1346 | st_Nil, /* 65 */ | |
1347 | st_Nil, /* 66 */ | |
1348 | st_Nil, /* 67 */ | |
1349 | st_Nil, /* 68 */ | |
1350 | st_Nil, /* 69 */ | |
1351 | st_Nil, /* 70 */ | |
1352 | st_Nil, /* 71 */ | |
1353 | st_Nil, /* 72 */ | |
1354 | st_Nil, /* 73 */ | |
1355 | st_Nil, /* 74 */ | |
1356 | st_Nil, /* 75 */ | |
1357 | st_Nil, /* 76 */ | |
1358 | st_Nil, /* 77 */ | |
1359 | st_Nil, /* 78 */ | |
1360 | st_Nil, /* 79 */ | |
1361 | st_Nil, /* 80 */ | |
1362 | st_Nil, /* 81 */ | |
1363 | st_Nil, /* 82 */ | |
1364 | st_Nil, /* 83 */ | |
1365 | st_Nil, /* 84 */ | |
1366 | st_Nil, /* 85 */ | |
1367 | st_Nil, /* 86 */ | |
1368 | st_Nil, /* 87 */ | |
1369 | st_Nil, /* 88 */ | |
1370 | st_Nil, /* 89 */ | |
1371 | st_Nil, /* 90 */ | |
1372 | st_Nil, /* 91 */ | |
1373 | st_Nil, /* 92 */ | |
1374 | st_Nil, /* 93 */ | |
1375 | st_Nil, /* 94 */ | |
1376 | st_Nil, /* 95 */ | |
1377 | st_Nil, /* 96 */ | |
1378 | st_Nil, /* 97 */ | |
1379 | st_Nil, /* 98 */ | |
1380 | st_Nil, /* 99 */ | |
1381 | st_Block, /* 100: C_BLOCK block start/end */ | |
1382 | st_Proc, /* 101: C_FCN function start/end */ | |
1383 | st_End, /* 102: C_EOS end of struct/union/enum */ | |
1384 | st_File, /* 103: C_FILE file start */ | |
1385 | st_Nil, /* 104: C_LINE line number */ | |
1386 | st_Nil, /* 105: C_ALIAS combined type info */ | |
1387 | st_Nil, /* 106: C_HIDDEN ??? */ | |
1388 | }; | |
1389 | ||
1390 | ||
1391 | /* Keep track of different sized allocation requests. */ | |
1392 | static alloc_info_t alloc_counts[ (int)alloc_type_last ]; | |
1393 | \f | |
1394 | /* Various statics. */ | |
1395 | static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ | |
1396 | static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */ | |
1397 | static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */ | |
1398 | static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */ | |
1399 | #ifdef ECOFF_DEBUG | |
1400 | static int debug = 0; /* trace functions */ | |
1401 | #endif | |
1402 | static int stabs_seen = 0; /* != 0 if stabs have been seen */ | |
1403 | ||
012353f7 | 1404 | static int current_file_idx; |
9faec336 ILT |
1405 | |
1406 | /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
1407 | #ifndef STABS_SYMBOL | |
1408 | #define STABS_SYMBOL "@stabs" | |
1409 | #endif | |
1410 | ||
1411 | static char stabs_symbol[] = STABS_SYMBOL; | |
1412 | \f | |
1413 | /* Prototypes for functions defined in this file. */ | |
1414 | ||
1415 | static void add_varray_page PARAMS ((varray_t *vp)); | |
1416 | static symint_t add_string PARAMS ((varray_t *vp, | |
1417 | struct hash_control *hash_tbl, | |
1418 | const char *str, | |
1419 | shash_t **ret_hash)); | |
1420 | static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type, | |
1421 | sc_t storage, symbolS *sym, | |
1422 | symint_t value, | |
1423 | symint_t indx)); | |
1424 | static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word)); | |
1425 | static symint_t add_aux_sym_rndx PARAMS ((int file_index, | |
1426 | symint_t sym_index)); | |
1427 | static symint_t add_aux_sym_tir PARAMS ((type_info_t *t, | |
1428 | hash_state_t state, | |
1429 | thash_t **hash_tbl)); | |
1430 | static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym, | |
1431 | bt_t basic_type)); | |
1432 | static void add_unknown_tag PARAMS ((tag_t *ptag)); | |
1433 | static void add_procedure PARAMS ((char *func)); | |
1434 | static void add_file PARAMS ((const char *file_name, int indx)); | |
1435 | #ifdef ECOFF_DEBUG | |
1436 | static char *sc_to_string PARAMS ((sc_t storage_class)); | |
1437 | static char *st_to_string PARAMS ((st_t symbol_type)); | |
1438 | #endif | |
1439 | static void mark_stabs PARAMS ((int)); | |
1440 | static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend, | |
1441 | char *bufptr, unsigned long need)); | |
1442 | static unsigned long ecoff_padding_adjust | |
1443 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1444 | unsigned long offset, char **bufptrptr)); | |
1445 | static unsigned long ecoff_build_lineno | |
1446 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1447 | unsigned long offset, long *linecntptr)); | |
1448 | static unsigned long ecoff_build_symbols | |
1449 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1450 | unsigned long offset)); | |
1451 | static unsigned long ecoff_build_procs | |
1452 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1453 | unsigned long offset)); | |
1454 | static unsigned long ecoff_build_aux | |
1455 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1456 | unsigned long offset)); | |
1457 | static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend, | |
1458 | unsigned long offset, | |
1459 | varray_t *vp)); | |
1460 | static unsigned long ecoff_build_ss | |
1461 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1462 | unsigned long offset)); | |
1463 | static unsigned long ecoff_build_fdr | |
1464 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1465 | unsigned long offset)); | |
012353f7 | 1466 | static void ecoff_setup_ext PARAMS ((void)); |
9faec336 ILT |
1467 | static page_t *allocate_cluster PARAMS ((unsigned long npages)); |
1468 | static page_t *allocate_page PARAMS ((void)); | |
1469 | static scope_t *allocate_scope PARAMS ((void)); | |
1470 | static void free_scope PARAMS ((scope_t *ptr)); | |
1471 | static vlinks_t *allocate_vlinks PARAMS ((void)); | |
1472 | static shash_t *allocate_shash PARAMS ((void)); | |
1473 | static thash_t *allocate_thash PARAMS ((void)); | |
1474 | static tag_t *allocate_tag PARAMS ((void)); | |
1475 | static void free_tag PARAMS ((tag_t *ptr)); | |
1476 | static forward_t *allocate_forward PARAMS ((void)); | |
1477 | static thead_t *allocate_thead PARAMS ((void)); | |
1478 | static void free_thead PARAMS ((thead_t *ptr)); | |
1479 | static lineno_list_t *allocate_lineno_list PARAMS ((void)); | |
1480 | \f | |
1481 | /* This function should be called when the assembler starts up. */ | |
1482 | ||
1483 | void | |
1484 | ecoff_read_begin_hook () | |
1485 | { | |
1486 | tag_hash = hash_new (); | |
1487 | top_tag_head = allocate_thead (); | |
1488 | top_tag_head->first_tag = (tag_t *) NULL; | |
1489 | top_tag_head->free = (thead_t *) NULL; | |
1490 | top_tag_head->prev = cur_tag_head; | |
1491 | cur_tag_head = top_tag_head; | |
1492 | } | |
1493 | ||
1494 | /* This function should be called when a symbol is created. */ | |
1495 | ||
1496 | void | |
1497 | ecoff_symbol_new_hook (symbolP) | |
1498 | symbolS *symbolP; | |
1499 | { | |
1500 | if (cur_file_ptr == (efdr_t *) NULL) | |
1501 | add_file ((const char *) NULL, 0); | |
1502 | symbolP->ecoff_file = cur_file_ptr; | |
1503 | symbolP->ecoff_symbol = NULL; | |
1504 | symbolP->ecoff_undefined = 0; | |
1505 | } | |
1506 | \f | |
1507 | /* Add a page to a varray object. */ | |
1508 | ||
1509 | static void | |
1510 | add_varray_page (vp) | |
1511 | varray_t *vp; /* varray to add page to */ | |
1512 | { | |
1513 | vlinks_t *new_links = allocate_vlinks (); | |
1514 | ||
1515 | #ifdef MALLOC_CHECK | |
1516 | if (vp->object_size > 1) | |
1517 | new_links->datum = (page_t *) xcalloc (1, vp->object_size); | |
1518 | else | |
1519 | #endif | |
1520 | new_links->datum = allocate_page (); | |
1521 | ||
1522 | alloc_counts[(int)alloc_type_varray].total_alloc++; | |
1523 | alloc_counts[(int)alloc_type_varray].total_pages++; | |
1524 | ||
1525 | new_links->start_index = vp->num_allocated; | |
1526 | vp->objects_last_page = 0; | |
1527 | ||
1528 | if (vp->first == (vlinks_t *) NULL) /* first allocation? */ | |
1529 | vp->first = vp->last = new_links; | |
1530 | else | |
1531 | { /* 2nd or greater allocation */ | |
1532 | new_links->prev = vp->last; | |
1533 | vp->last->next = new_links; | |
1534 | vp->last = new_links; | |
1535 | } | |
1536 | } | |
1537 | \f | |
1538 | /* Add a string (and null pad) to one of the string tables. */ | |
1539 | ||
1540 | static symint_t | |
1541 | add_string (vp, hash_tbl, str, ret_hash) | |
1542 | varray_t *vp; /* string obstack */ | |
1543 | struct hash_control *hash_tbl; /* ptr to hash table */ | |
1544 | const char *str; /* string */ | |
1545 | shash_t **ret_hash; /* return hash pointer */ | |
1546 | { | |
1547 | register unsigned long len = strlen (str); | |
1548 | register shash_t *hash_ptr; | |
1549 | ||
1550 | if (len >= PAGE_USIZE) | |
1551 | as_fatal ("String too big (%lu bytes)", len); | |
1552 | ||
1553 | hash_ptr = (shash_t *) hash_find (hash_tbl, str); | |
1554 | if (hash_ptr == (shash_t *) NULL) | |
1555 | { | |
1556 | register const char *err; | |
1557 | ||
1558 | if (vp->objects_last_page + len >= PAGE_USIZE) | |
1559 | { | |
1560 | vp->num_allocated = | |
1561 | ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; | |
1562 | add_varray_page (vp); | |
1563 | } | |
1564 | ||
1565 | hash_ptr = allocate_shash (); | |
1566 | hash_ptr->indx = vp->num_allocated; | |
1567 | ||
1568 | hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; | |
1569 | ||
1570 | vp->objects_last_page += len + 1; | |
1571 | vp->num_allocated += len + 1; | |
1572 | ||
1573 | strcpy (hash_ptr->string, str); | |
1574 | ||
1575 | err = hash_insert (hash_tbl, str, (char *) hash_ptr); | |
1576 | if (err) | |
1577 | as_fatal ("Inserting \"%s\" into string hash table: %s", | |
1578 | str, err); | |
1579 | } | |
1580 | ||
1581 | if (ret_hash != (shash_t **) NULL) | |
1582 | *ret_hash = hash_ptr; | |
1583 | ||
1584 | return hash_ptr->indx; | |
1585 | } | |
1586 | \f | |
1587 | /* Add debugging information for a symbol. */ | |
1588 | ||
1589 | static localsym_t * | |
1590 | add_ecoff_symbol (str, type, storage, sym_value, value, indx) | |
1591 | const char *str; /* symbol name */ | |
1592 | st_t type; /* symbol type */ | |
1593 | sc_t storage; /* storage class */ | |
1594 | symbolS *sym_value; /* associated symbol. */ | |
1595 | symint_t value; /* value of symbol */ | |
1596 | symint_t indx; /* index to local/aux. syms */ | |
1597 | { | |
1598 | localsym_t *psym; | |
1599 | register scope_t *pscope; | |
1600 | register thead_t *ptag_head; | |
1601 | register tag_t *ptag; | |
1602 | register tag_t *ptag_next; | |
1603 | register varray_t *vp; | |
1604 | register int scope_delta = 0; | |
1605 | shash_t *hash_ptr = (shash_t *) NULL; | |
1606 | ||
1607 | if (cur_file_ptr == (efdr_t *) NULL) | |
1608 | as_fatal ("no current file pointer"); | |
1609 | ||
1610 | vp = &cur_file_ptr->symbols; | |
1611 | ||
1612 | if (vp->objects_last_page == vp->objects_per_page) | |
1613 | add_varray_page (vp); | |
1614 | ||
1615 | psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; | |
1616 | ||
1617 | if (str == (const char *) NULL && sym_value != (symbolS *) NULL) | |
1618 | psym->name = S_GET_NAME (sym_value); | |
1619 | else | |
1620 | psym->name = str; | |
1621 | psym->as_sym = sym_value; | |
1622 | if (sym_value != (symbolS *) NULL) | |
1623 | sym_value->ecoff_symbol = psym; | |
1624 | psym->file_ptr = cur_file_ptr; | |
1625 | psym->proc_ptr = cur_proc_ptr; | |
1626 | psym->begin_ptr = (localsym_t *) NULL; | |
1627 | psym->index_ptr = (aux_t *) NULL; | |
1628 | psym->forward_ref = (forward_t *) NULL; | |
1629 | psym->sym_index = -1; | |
1630 | memset (&psym->ecoff_sym, 0, sizeof (EXTR)); | |
1631 | psym->ecoff_sym.asym.value = value; | |
1632 | psym->ecoff_sym.asym.st = (unsigned) type; | |
1633 | psym->ecoff_sym.asym.sc = (unsigned) storage; | |
1634 | psym->ecoff_sym.asym.index = indx; | |
1635 | ||
1636 | /* If there is an associated symbol, we wait until the end of the | |
1637 | assembly before deciding where to put the name (it may be just an | |
1638 | external symbol). Otherwise, this is just a debugging symbol and | |
1639 | the name should go with the current file. */ | |
1640 | if (sym_value == (symbolS *) NULL) | |
1641 | psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) | |
1642 | ? 0 | |
1643 | : add_string (&cur_file_ptr->strings, | |
1644 | cur_file_ptr->str_hash, | |
1645 | str, | |
1646 | &hash_ptr)); | |
1647 | ||
1648 | ++vp->num_allocated; | |
1649 | ||
1650 | if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) | |
1651 | return psym; | |
1652 | ||
1653 | /* Save the symbol within the hash table if this is a static | |
1654 | item, and it has a name. */ | |
1655 | if (hash_ptr != (shash_t *) NULL | |
1656 | && (type == st_Global || type == st_Static || type == st_Label | |
1657 | || type == st_Proc || type == st_StaticProc)) | |
1658 | hash_ptr->sym_ptr = psym; | |
1659 | ||
1660 | /* push or pop a scope if appropriate. */ | |
1661 | switch (type) | |
1662 | { | |
1663 | default: | |
1664 | break; | |
1665 | ||
1666 | case st_File: /* beginning of file */ | |
1667 | case st_Proc: /* procedure */ | |
1668 | case st_StaticProc: /* static procedure */ | |
1669 | case st_Block: /* begin scope */ | |
1670 | pscope = allocate_scope (); | |
1671 | pscope->prev = cur_file_ptr->cur_scope; | |
1672 | pscope->lsym = psym; | |
1673 | pscope->type = type; | |
1674 | cur_file_ptr->cur_scope = pscope; | |
1675 | ||
1676 | if (type != st_File) | |
1677 | scope_delta = 1; | |
1678 | ||
1679 | /* For every block type except file, struct, union, or | |
1680 | enumeration blocks, push a level on the tag stack. We omit | |
1681 | file types, so that tags can span file boundaries. */ | |
1682 | if (type != st_File && storage != sc_Info) | |
1683 | { | |
1684 | ptag_head = allocate_thead (); | |
1685 | ptag_head->first_tag = 0; | |
1686 | ptag_head->prev = cur_tag_head; | |
1687 | cur_tag_head = ptag_head; | |
1688 | } | |
1689 | break; | |
1690 | ||
1691 | case st_End: | |
1692 | pscope = cur_file_ptr->cur_scope; | |
1693 | if (pscope == (scope_t *) NULL) | |
1694 | as_fatal ("too many st_End's"); | |
1695 | else | |
1696 | { | |
1697 | st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; | |
1698 | ||
1699 | psym->begin_ptr = pscope->lsym; | |
1700 | ||
1701 | if (begin_type != st_File) | |
1702 | scope_delta = -1; | |
1703 | ||
1704 | /* Except for file, structure, union, or enumeration end | |
1705 | blocks remove all tags created within this scope. */ | |
1706 | if (begin_type != st_File && storage != sc_Info) | |
1707 | { | |
1708 | ptag_head = cur_tag_head; | |
1709 | cur_tag_head = ptag_head->prev; | |
1710 | ||
1711 | for (ptag = ptag_head->first_tag; | |
1712 | ptag != (tag_t *) NULL; | |
1713 | ptag = ptag_next) | |
1714 | { | |
1715 | if (ptag->forward_ref != (forward_t *) NULL) | |
1716 | add_unknown_tag (ptag); | |
1717 | ||
1718 | ptag_next = ptag->same_block; | |
1719 | ptag->hash_ptr->tag_ptr = ptag->same_name; | |
1720 | free_tag (ptag); | |
1721 | } | |
1722 | ||
1723 | free_thead (ptag_head); | |
1724 | } | |
1725 | ||
1726 | cur_file_ptr->cur_scope = pscope->prev; | |
1727 | ||
1728 | /* block begin gets next sym #. This is set when we know | |
1729 | the symbol index value. */ | |
1730 | ||
1731 | /* Functions push two or more aux words as follows: | |
1732 | 1st word: index+1 of the end symbol (filled in later). | |
1733 | 2nd word: type of the function (plus any aux words needed). | |
1734 | Also, tie the external pointer back to the function begin symbol. */ | |
1735 | if (begin_type != st_File && begin_type != st_Block) | |
1736 | { | |
1737 | symint_t ty; | |
1738 | varray_t *svp = &cur_file_ptr->aux_syms; | |
1739 | ||
1740 | pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); | |
1741 | pscope->lsym->index_ptr = | |
1742 | &svp->last->datum->aux[svp->objects_last_page - 1]; | |
1743 | ty = add_aux_sym_tir (&last_func_type_info, | |
1744 | hash_no, | |
1745 | &cur_file_ptr->thash_head[0]); | |
1746 | ||
1747 | /* This seems to be unnecessary. I'm not even sure what it is | |
1748 | * intended to do. It's from mips-tfile. | |
1749 | * if (last_func_sym_value != (symbolS *) NULL) | |
1750 | * { | |
1751 | * last_func_sym_value->ifd = cur_file_ptr->file_index; | |
1752 | * last_func_sym_value->index = ty; | |
1753 | * } | |
1754 | */ | |
1755 | } | |
1756 | ||
1757 | free_scope (pscope); | |
1758 | } | |
1759 | } | |
1760 | ||
1761 | cur_file_ptr->nested_scopes += scope_delta; | |
1762 | ||
1763 | #ifdef ECOFF_DEBUG | |
1764 | if (debug && type != st_File | |
1765 | && (debug > 2 || type == st_Block || type == st_End | |
1766 | || type == st_Proc || type == st_StaticProc)) | |
1767 | { | |
1768 | char *sc_str = sc_to_string (storage); | |
1769 | char *st_str = st_to_string (type); | |
1770 | int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); | |
1771 | ||
1772 | fprintf (stderr, | |
1773 | "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", | |
1774 | value, depth, sc_str); | |
1775 | ||
1776 | if (str_start && str_end_p1 - str_start > 0) | |
1777 | fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start); | |
1778 | else | |
1779 | { | |
1780 | unsigned long len = strlen (st_str); | |
1781 | fprintf (stderr, " st= %.*s\n", len-1, st_str); | |
1782 | } | |
1783 | } | |
1784 | #endif | |
1785 | ||
1786 | return psym; | |
1787 | } | |
1788 | \f | |
1789 | /* Add an auxiliary symbol (passing a symint). This is actually used | |
1790 | for integral aux types, not just symints. */ | |
1791 | ||
1792 | static symint_t | |
1793 | add_aux_sym_symint (aux_word) | |
1794 | symint_t aux_word; /* auxiliary information word */ | |
1795 | { | |
1796 | register varray_t *vp; | |
1797 | register aux_t *aux_ptr; | |
1798 | ||
1799 | if (cur_file_ptr == (efdr_t *) NULL) | |
1800 | as_fatal ("no current file pointer"); | |
1801 | ||
1802 | vp = &cur_file_ptr->aux_syms; | |
1803 | ||
1804 | if (vp->objects_last_page == vp->objects_per_page) | |
1805 | add_varray_page (vp); | |
1806 | ||
1807 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; | |
1808 | aux_ptr->type = aux_isym; | |
1809 | aux_ptr->data.isym = aux_word; | |
1810 | ||
1811 | return vp->num_allocated++; | |
1812 | } | |
1813 | ||
1814 | ||
1815 | /* Add an auxiliary symbol (passing a file/symbol index combo). */ | |
1816 | ||
1817 | static symint_t | |
1818 | add_aux_sym_rndx (file_index, sym_index) | |
1819 | int file_index; | |
1820 | symint_t sym_index; | |
1821 | { | |
1822 | register varray_t *vp; | |
1823 | register aux_t *aux_ptr; | |
1824 | ||
1825 | if (cur_file_ptr == (efdr_t *) NULL) | |
1826 | as_fatal ("no current file pointer"); | |
1827 | ||
1828 | vp = &cur_file_ptr->aux_syms; | |
1829 | ||
1830 | if (vp->objects_last_page == vp->objects_per_page) | |
1831 | add_varray_page (vp); | |
1832 | ||
1833 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; | |
1834 | aux_ptr->type = aux_rndx; | |
1835 | aux_ptr->data.rndx.rfd = file_index; | |
1836 | aux_ptr->data.rndx.index = sym_index; | |
1837 | ||
1838 | return vp->num_allocated++; | |
1839 | } | |
1840 | \f | |
1841 | /* Add an auxiliary symbol (passing the basic type and possibly | |
1842 | type qualifiers). */ | |
1843 | ||
1844 | static symint_t | |
1845 | add_aux_sym_tir (t, state, hash_tbl) | |
1846 | type_info_t *t; /* current type information */ | |
1847 | hash_state_t state; /* whether to hash type or not */ | |
1848 | thash_t **hash_tbl; /* pointer to hash table to use */ | |
1849 | { | |
1850 | register varray_t *vp; | |
1851 | register aux_t *aux_ptr; | |
1852 | static AUXU init_aux; | |
1853 | symint_t ret; | |
1854 | int i; | |
1855 | AUXU aux; | |
1856 | ||
1857 | if (cur_file_ptr == (efdr_t *) NULL) | |
1858 | as_fatal ("no current file pointer"); | |
1859 | ||
1860 | vp = &cur_file_ptr->aux_syms; | |
1861 | ||
1862 | aux = init_aux; | |
1863 | aux.ti.bt = (int) t->basic_type; | |
1864 | aux.ti.continued = 0; | |
1865 | aux.ti.fBitfield = t->bitfield; | |
1866 | ||
1867 | aux.ti.tq0 = (int) t->type_qualifiers[0]; | |
1868 | aux.ti.tq1 = (int) t->type_qualifiers[1]; | |
1869 | aux.ti.tq2 = (int) t->type_qualifiers[2]; | |
1870 | aux.ti.tq3 = (int) t->type_qualifiers[3]; | |
1871 | aux.ti.tq4 = (int) t->type_qualifiers[4]; | |
1872 | aux.ti.tq5 = (int) t->type_qualifiers[5]; | |
1873 | ||
1874 | ||
1875 | /* For anything that adds additional information, we must not hash, | |
1876 | so check here, and reset our state. */ | |
1877 | ||
1878 | if (state != hash_no | |
1879 | && (t->type_qualifiers[0] == tq_Array | |
1880 | || t->type_qualifiers[1] == tq_Array | |
1881 | || t->type_qualifiers[2] == tq_Array | |
1882 | || t->type_qualifiers[3] == tq_Array | |
1883 | || t->type_qualifiers[4] == tq_Array | |
1884 | || t->type_qualifiers[5] == tq_Array | |
1885 | || t->basic_type == bt_Struct | |
1886 | || t->basic_type == bt_Union | |
1887 | || t->basic_type == bt_Enum | |
1888 | || t->bitfield | |
1889 | || t->num_dims > 0)) | |
1890 | state = hash_no; | |
1891 | ||
1892 | /* See if we can hash this type, and save some space, but some types | |
1893 | can't be hashed (because they contain arrays or continuations), | |
1894 | and others can be put into the hash list, but cannot use existing | |
1895 | types because other aux entries precede this one. */ | |
1896 | ||
1897 | if (state != hash_no) | |
1898 | { | |
1899 | register thash_t *hash_ptr; | |
1900 | register symint_t hi; | |
1901 | ||
1902 | hi = aux.isym & ((1 << HASHBITS) - 1); | |
1903 | hi %= THASH_SIZE; | |
1904 | ||
1905 | for (hash_ptr = hash_tbl[hi]; | |
1906 | hash_ptr != (thash_t *)0; | |
1907 | hash_ptr = hash_ptr->next) | |
1908 | { | |
1909 | if (aux.isym == hash_ptr->type.isym) | |
1910 | break; | |
1911 | } | |
1912 | ||
1913 | if (hash_ptr != (thash_t *) NULL && state == hash_yes) | |
1914 | return hash_ptr->indx; | |
1915 | ||
1916 | if (hash_ptr == (thash_t *) NULL) | |
1917 | { | |
1918 | hash_ptr = allocate_thash (); | |
1919 | hash_ptr->next = hash_tbl[hi]; | |
1920 | hash_ptr->type = aux; | |
1921 | hash_ptr->indx = vp->num_allocated; | |
1922 | hash_tbl[hi] = hash_ptr; | |
1923 | } | |
1924 | } | |
1925 | ||
1926 | /* Everything is set up, add the aux symbol. */ | |
1927 | if (vp->objects_last_page == vp->objects_per_page) | |
1928 | add_varray_page (vp); | |
1929 | ||
1930 | aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; | |
1931 | aux_ptr->type = aux_tir; | |
1932 | aux_ptr->data = aux; | |
1933 | ||
1934 | ret = vp->num_allocated++; | |
1935 | ||
1936 | /* Add bitfield length if it exists. | |
012353f7 | 1937 | |
9faec336 ILT |
1938 | NOTE: Mips documentation claims bitfield goes at the end of the |
1939 | AUX record, but the DECstation compiler emits it here. | |
1940 | (This would only make a difference for enum bitfields.) | |
1941 | ||
1942 | Also note: We use the last size given since gcc may emit 2 | |
1943 | for an enum bitfield. */ | |
1944 | ||
1945 | if (t->bitfield) | |
1946 | (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]); | |
1947 | ||
1948 | ||
1949 | /* Add tag information if needed. Structure, union, and enum | |
1950 | references add 2 aux symbols: a [file index, symbol index] | |
1951 | pointer to the structure type, and the current file index. */ | |
1952 | ||
1953 | if (t->basic_type == bt_Struct | |
1954 | || t->basic_type == bt_Union | |
1955 | || t->basic_type == bt_Enum) | |
1956 | { | |
1957 | register symint_t file_index = t->tag_ptr->ifd; | |
1958 | register localsym_t *sym = t->tag_ptr->sym; | |
1959 | register forward_t *forward_ref = allocate_forward (); | |
1960 | ||
1961 | if (sym != (localsym_t *) NULL) | |
1962 | { | |
1963 | forward_ref->next = sym->forward_ref; | |
1964 | sym->forward_ref = forward_ref; | |
1965 | } | |
1966 | else | |
1967 | { | |
1968 | forward_ref->next = t->tag_ptr->forward_ref; | |
1969 | t->tag_ptr->forward_ref = forward_ref; | |
1970 | } | |
1971 | ||
1972 | (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); | |
1973 | forward_ref->index_ptr | |
1974 | = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
1975 | ||
1976 | (void) add_aux_sym_symint (file_index); | |
1977 | forward_ref->ifd_ptr | |
1978 | = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
1979 | } | |
1980 | ||
1981 | /* Add information about array bounds if they exist. */ | |
1982 | for (i = 0; i < t->num_dims; i++) | |
1983 | { | |
1984 | (void) add_aux_sym_rndx (ST_RFDESCAPE, | |
1985 | cur_file_ptr->int_type); | |
1986 | ||
1987 | (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ | |
1988 | (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ | |
1989 | (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ | |
1990 | (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ | |
1991 | ? 0 | |
1992 | : (t->sizes[i] * 8) / t->dimensions[i]); | |
1993 | }; | |
1994 | ||
1995 | /* NOTE: Mips documentation claims that the bitfield width goes here. | |
1996 | But it needs to be emitted earlier. */ | |
1997 | ||
1998 | return ret; | |
1999 | } | |
2000 | \f | |
2001 | /* Add a tag to the tag table (unless it already exists). */ | |
2002 | ||
2003 | static tag_t * | |
2004 | get_tag (tag, sym, basic_type) | |
2005 | const char *tag; /* tag name */ | |
2006 | localsym_t *sym; /* tag start block */ | |
2007 | bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ | |
2008 | { | |
2009 | shash_t *hash_ptr; | |
2010 | const char *err; | |
2011 | tag_t *tag_ptr; | |
2012 | ||
2013 | if (cur_file_ptr == (efdr_t *) NULL) | |
2014 | as_fatal ("no current file pointer"); | |
2015 | ||
2016 | hash_ptr = (shash_t *) hash_find (tag_hash, tag); | |
2017 | ||
2018 | if (hash_ptr != (shash_t *) NULL | |
2019 | && hash_ptr->tag_ptr != (tag_t *) NULL) | |
2020 | { | |
2021 | tag_ptr = hash_ptr->tag_ptr; | |
2022 | if (sym != (localsym_t *) NULL) | |
2023 | { | |
2024 | tag_ptr->basic_type = basic_type; | |
2025 | tag_ptr->ifd = cur_file_ptr->file_index; | |
2026 | tag_ptr->sym = sym; | |
2027 | } | |
2028 | return tag_ptr; | |
2029 | } | |
2030 | ||
2031 | if (hash_ptr == (shash_t *) NULL) | |
2032 | { | |
2033 | char *perm; | |
2034 | ||
2035 | perm = xmalloc ((unsigned long) (strlen (tag) + 1)); | |
2036 | strcpy (perm, tag); | |
2037 | hash_ptr = allocate_shash (); | |
2038 | err = hash_insert (tag_hash, perm, (char *) hash_ptr); | |
2039 | if (err) | |
2040 | as_fatal ("Inserting \"%s\" into tag hash table: %s", | |
2041 | tag, err); | |
2042 | hash_ptr->string = perm; | |
2043 | } | |
2044 | ||
2045 | tag_ptr = allocate_tag (); | |
2046 | tag_ptr->forward_ref = (forward_t *) NULL; | |
2047 | tag_ptr->hash_ptr = hash_ptr; | |
2048 | tag_ptr->same_name = hash_ptr->tag_ptr; | |
2049 | tag_ptr->basic_type = basic_type; | |
2050 | tag_ptr->sym = sym; | |
2051 | tag_ptr->ifd = ((sym == (localsym_t *) NULL) | |
2052 | ? (symint_t) -1 | |
2053 | : cur_file_ptr->file_index); | |
2054 | tag_ptr->same_block = cur_tag_head->first_tag; | |
2055 | ||
2056 | cur_tag_head->first_tag = tag_ptr; | |
2057 | hash_ptr->tag_ptr = tag_ptr; | |
2058 | ||
2059 | return tag_ptr; | |
2060 | } | |
2061 | \f | |
2062 | /* Add an unknown {struct, union, enum} tag. */ | |
2063 | ||
2064 | static void | |
2065 | add_unknown_tag (ptag) | |
2066 | tag_t *ptag; /* pointer to tag information */ | |
2067 | { | |
2068 | shash_t *hash_ptr = ptag->hash_ptr; | |
2069 | char *name = hash_ptr->string; | |
2070 | localsym_t *sym; | |
2071 | forward_t **pf; | |
2072 | ||
2073 | #ifdef ECOFF_DEBUG | |
2074 | if (debug > 1) | |
2075 | { | |
2076 | char *agg_type = "{unknown aggregate type}"; | |
2077 | switch (ptag->basic_type) | |
2078 | { | |
2079 | case bt_Struct: agg_type = "struct"; break; | |
2080 | case bt_Union: agg_type = "union"; break; | |
2081 | case bt_Enum: agg_type = "enum"; break; | |
2082 | default: break; | |
2083 | } | |
2084 | ||
2085 | fprintf (stderr, "unknown %s %.*s found\n", agg_type, | |
2086 | hash_ptr->len, name_start); | |
2087 | } | |
2088 | #endif | |
2089 | ||
2090 | sym = add_ecoff_symbol (name, | |
2091 | st_Block, | |
2092 | sc_Info, | |
2093 | (symbolS *) NULL, | |
2094 | (symint_t) 0, | |
2095 | (symint_t) 0); | |
2096 | ||
2097 | (void) add_ecoff_symbol (name, | |
2098 | st_End, | |
2099 | sc_Info, | |
2100 | (symbolS *) NULL, | |
2101 | (symint_t) 0, | |
2102 | (symint_t) 0); | |
2103 | ||
2104 | for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) | |
2105 | ; | |
2106 | *pf = ptag->forward_ref; | |
2107 | } | |
2108 | \f | |
2109 | /* Add a procedure to the current file's list of procedures, and record | |
2110 | this is the current procedure. */ | |
2111 | ||
2112 | static void | |
2113 | add_procedure (func) | |
2114 | char *func; /* func name */ | |
2115 | { | |
2116 | register varray_t *vp; | |
2117 | register proc_t *new_proc_ptr; | |
2118 | ||
2119 | #ifdef ECOFF_DEBUG | |
2120 | if (debug) | |
2121 | fputc ('\n', stderr); | |
2122 | #endif | |
2123 | ||
2124 | if (cur_file_ptr == (efdr_t *) NULL) | |
2125 | as_fatal ("no current file pointer"); | |
2126 | ||
2127 | vp = &cur_file_ptr->procs; | |
2128 | ||
2129 | if (vp->objects_last_page == vp->objects_per_page) | |
2130 | add_varray_page (vp); | |
2131 | ||
2132 | cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++]; | |
2133 | ||
2134 | vp->num_allocated++; | |
2135 | ||
2136 | new_proc_ptr->pdr.isym = -1; | |
2137 | new_proc_ptr->pdr.iline = -1; | |
2138 | new_proc_ptr->pdr.lnLow = -1; | |
2139 | new_proc_ptr->pdr.lnHigh = -1; | |
2140 | ||
2141 | /* Push the start of the function. */ | |
2142 | new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, | |
2143 | symbol_find_or_make (func), | |
2144 | (symint_t) 0, (symint_t) 0); | |
2145 | ||
2146 | ++proc_cnt; | |
2147 | ||
2148 | /* Fill in the linenos preceding the .ent, if any. */ | |
2149 | if (noproc_lineno != (lineno_list_t *) NULL) | |
2150 | { | |
2151 | lineno_list_t *l; | |
2152 | ||
2153 | for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) | |
2154 | l->proc = new_proc_ptr; | |
2155 | *last_lineno_ptr = noproc_lineno; | |
2156 | while (*last_lineno_ptr != NULL) | |
2157 | last_lineno_ptr = &(*last_lineno_ptr)->next; | |
2158 | noproc_lineno = (lineno_list_t *) NULL; | |
2159 | } | |
2160 | } | |
2161 | \f | |
2162 | /* Add a new filename, and set up all of the file relative | |
2163 | virtual arrays (strings, symbols, aux syms, etc.). Record | |
2164 | where the current file structure lives. */ | |
2165 | ||
2166 | static void | |
2167 | add_file (file_name, indx) | |
2168 | const char *file_name; /* file name */ | |
2169 | int indx; | |
2170 | { | |
2171 | register int first_ch; | |
2172 | register efdr_t *fil_ptr; | |
2173 | ||
2174 | #ifdef ECOFF_DEBUG | |
2175 | if (debug) | |
2176 | fprintf (stderr, "\tfile\t%.*s\n", len, file_start); | |
2177 | #endif | |
2178 | ||
2179 | /* If the file name is NULL, then no .file symbol appeared, and we | |
2180 | want to use the actual file name. */ | |
2181 | if (file_name == (const char *) NULL) | |
2182 | { | |
2183 | char *file; | |
2184 | ||
2185 | if (first_file != (efdr_t *) NULL) | |
2186 | as_fatal ("fake .file after real one"); | |
2187 | as_where (&file, (unsigned int *) NULL); | |
2188 | file_name = (const char *) file; | |
2189 | } | |
2190 | ||
2191 | #ifndef NO_LISTING | |
2192 | if (listing) | |
2193 | listing_source_file (file_name); | |
2194 | #endif | |
2195 | ||
2196 | /* If we're creating stabs, then we don't actually make a new FDR. | |
2197 | Instead, we just create a stabs symbol. */ | |
2198 | if (stabs_seen) | |
2199 | { | |
2200 | (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, | |
2201 | symbol_new ("L0\001", now_seg, | |
2202 | (valueT) frag_now_fix (), | |
2203 | frag_now), | |
2204 | 0, ECOFF_MARK_STAB (N_SOL)); | |
2205 | return; | |
2206 | } | |
2207 | ||
2208 | first_ch = *file_name; | |
2209 | ||
2210 | /* See if the file has already been created. */ | |
2211 | for (fil_ptr = first_file; | |
2212 | fil_ptr != (efdr_t *) NULL; | |
2213 | fil_ptr = fil_ptr->next_file) | |
2214 | { | |
2215 | if (first_ch == fil_ptr->name[0] | |
2216 | && strcmp (file_name, fil_ptr->name) == 0) | |
2217 | { | |
2218 | cur_file_ptr = fil_ptr; | |
2219 | break; | |
2220 | } | |
2221 | } | |
2222 | ||
2223 | /* If this is a new file, create it. */ | |
2224 | if (fil_ptr == (efdr_t *) NULL) | |
2225 | { | |
2226 | if (file_desc.objects_last_page == file_desc.objects_per_page) | |
2227 | add_varray_page (&file_desc); | |
2228 | ||
2229 | fil_ptr = cur_file_ptr = | |
2230 | &file_desc.last->datum->file[file_desc.objects_last_page++]; | |
2231 | *fil_ptr = init_file; | |
2232 | ||
012353f7 | 2233 | fil_ptr->file_index = current_file_idx++; |
9faec336 ILT |
2234 | ++file_desc.num_allocated; |
2235 | ||
2236 | /* Allocate the string hash table. */ | |
2237 | fil_ptr->str_hash = hash_new (); | |
2238 | ||
2239 | /* Make sure 0 byte in string table is null */ | |
2240 | add_string (&fil_ptr->strings, | |
2241 | fil_ptr->str_hash, | |
2242 | "", | |
2243 | (shash_t **)0); | |
2244 | ||
2245 | if (strlen (file_name) > PAGE_USIZE - 2) | |
2246 | as_fatal ("Filename goes over one page boundary."); | |
2247 | ||
2248 | /* Push the start of the filename. We assume that the filename | |
2249 | will be stored at string offset 1. */ | |
2250 | (void) add_ecoff_symbol (file_name, st_File, sc_Text, | |
2251 | (symbolS *) NULL, | |
2252 | (symint_t) 0, (symint_t) 0); | |
2253 | fil_ptr->fdr.rss = 1; | |
2254 | fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; | |
2255 | ||
2256 | /* Update the linked list of file descriptors. */ | |
2257 | *last_file_ptr = fil_ptr; | |
2258 | last_file_ptr = &fil_ptr->next_file; | |
2259 | ||
2260 | /* Add void & int types to the file (void should be first to catch | |
2261 | errant 0's within the index fields). */ | |
2262 | fil_ptr->void_type = add_aux_sym_tir (&void_type_info, | |
2263 | hash_yes, | |
2264 | &cur_file_ptr->thash_head[0]); | |
2265 | ||
2266 | fil_ptr->int_type = add_aux_sym_tir (&int_type_info, | |
2267 | hash_yes, | |
2268 | &cur_file_ptr->thash_head[0]); | |
2269 | } | |
2270 | } | |
2271 | \f | |
2272 | #ifdef ECOFF_DEBUG | |
2273 | ||
2274 | /* Convert storage class to string. */ | |
2275 | ||
2276 | static char * | |
2277 | sc_to_string(storage_class) | |
2278 | sc_t storage_class; | |
2279 | { | |
2280 | switch(storage_class) | |
2281 | { | |
2282 | case sc_Nil: return "Nil,"; | |
2283 | case sc_Text: return "Text,"; | |
2284 | case sc_Data: return "Data,"; | |
2285 | case sc_Bss: return "Bss,"; | |
2286 | case sc_Register: return "Register,"; | |
2287 | case sc_Abs: return "Abs,"; | |
2288 | case sc_Undefined: return "Undefined,"; | |
2289 | case sc_CdbLocal: return "CdbLocal,"; | |
2290 | case sc_Bits: return "Bits,"; | |
2291 | case sc_CdbSystem: return "CdbSystem,"; | |
2292 | case sc_RegImage: return "RegImage,"; | |
2293 | case sc_Info: return "Info,"; | |
2294 | case sc_UserStruct: return "UserStruct,"; | |
2295 | case sc_SData: return "SData,"; | |
2296 | case sc_SBss: return "SBss,"; | |
2297 | case sc_RData: return "RData,"; | |
2298 | case sc_Var: return "Var,"; | |
2299 | case sc_Common: return "Common,"; | |
2300 | case sc_SCommon: return "SCommon,"; | |
2301 | case sc_VarRegister: return "VarRegister,"; | |
2302 | case sc_Variant: return "Variant,"; | |
2303 | case sc_SUndefined: return "SUndefined,"; | |
2304 | case sc_Init: return "Init,"; | |
2305 | case sc_Max: return "Max,"; | |
2306 | } | |
2307 | ||
2308 | return "???,"; | |
2309 | } | |
2310 | ||
2311 | #endif /* DEBUG */ | |
2312 | \f | |
2313 | #ifdef ECOFF_DEBUG | |
2314 | ||
2315 | /* Convert symbol type to string. */ | |
2316 | ||
2317 | static char * | |
2318 | st_to_string(symbol_type) | |
2319 | st_t symbol_type; | |
2320 | { | |
2321 | switch(symbol_type) | |
2322 | { | |
2323 | case st_Nil: return "Nil,"; | |
2324 | case st_Global: return "Global,"; | |
2325 | case st_Static: return "Static,"; | |
2326 | case st_Param: return "Param,"; | |
2327 | case st_Local: return "Local,"; | |
2328 | case st_Label: return "Label,"; | |
2329 | case st_Proc: return "Proc,"; | |
2330 | case st_Block: return "Block,"; | |
2331 | case st_End: return "End,"; | |
2332 | case st_Member: return "Member,"; | |
2333 | case st_Typedef: return "Typedef,"; | |
2334 | case st_File: return "File,"; | |
2335 | case st_RegReloc: return "RegReloc,"; | |
2336 | case st_Forward: return "Forward,"; | |
2337 | case st_StaticProc: return "StaticProc,"; | |
2338 | case st_Constant: return "Constant,"; | |
2339 | case st_Str: return "String,"; | |
2340 | case st_Number: return "Number,"; | |
2341 | case st_Expr: return "Expr,"; | |
2342 | case st_Type: return "Type,"; | |
2343 | case st_Max: return "Max,"; | |
2344 | } | |
2345 | ||
2346 | return "???,"; | |
2347 | } | |
2348 | ||
2349 | #endif /* DEBUG */ | |
2350 | \f | |
2351 | /* Parse .begin directives which have a label as the first argument | |
2352 | which gives the location of the start of the block. */ | |
2353 | ||
2354 | void | |
2355 | ecoff_directive_begin (ignore) | |
2356 | int ignore; | |
2357 | { | |
2358 | char *name; | |
2359 | char name_end; | |
2360 | ||
2361 | if (cur_file_ptr == (efdr_t *) NULL) | |
2362 | { | |
2363 | as_warn (".begin directive without a preceding .file directive"); | |
2364 | demand_empty_rest_of_line (); | |
2365 | return; | |
2366 | } | |
2367 | ||
2368 | if (cur_proc_ptr == (proc_t *) NULL) | |
2369 | { | |
2370 | as_warn (".begin directive without a preceding .ent directive"); | |
2371 | demand_empty_rest_of_line (); | |
2372 | return; | |
2373 | } | |
012353f7 | 2374 | |
9faec336 ILT |
2375 | name = input_line_pointer; |
2376 | name_end = get_symbol_end (); | |
2377 | ||
2378 | (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, | |
2379 | symbol_find_or_make (name), | |
2380 | (symint_t) 0, (symint_t) 0); | |
2381 | ||
2382 | *input_line_pointer = name_end; | |
2383 | ||
2384 | /* The line number follows, but we don't use it. */ | |
2385 | (void) get_absolute_expression (); | |
2386 | demand_empty_rest_of_line (); | |
2387 | } | |
2388 | \f | |
2389 | /* Parse .bend directives which have a label as the first argument | |
2390 | which gives the location of the end of the block. */ | |
2391 | ||
2392 | void | |
2393 | ecoff_directive_bend (ignore) | |
2394 | int ignore; | |
2395 | { | |
2396 | char *name; | |
2397 | char name_end; | |
2398 | symbolS *endsym; | |
2399 | ||
2400 | if (cur_file_ptr == (efdr_t *) NULL) | |
2401 | { | |
2402 | as_warn (".bend directive without a preceding .file directive"); | |
2403 | demand_empty_rest_of_line (); | |
2404 | return; | |
2405 | } | |
2406 | ||
2407 | if (cur_proc_ptr == (proc_t *) NULL) | |
2408 | { | |
2409 | as_warn (".bend directive without a preceding .ent directive"); | |
2410 | demand_empty_rest_of_line (); | |
2411 | return; | |
2412 | } | |
2413 | ||
2414 | name = input_line_pointer; | |
2415 | name_end = get_symbol_end (); | |
2416 | ||
2417 | /* The value is the distance between the .bend directive and the | |
2418 | corresponding symbol. We fill in the offset when we write out | |
2419 | the symbol. */ | |
2420 | endsym = symbol_find (name); | |
2421 | if (endsym == (symbolS *) NULL) | |
2422 | as_warn (".bend directive names unknown symbol"); | |
2423 | else | |
2424 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, | |
2425 | (symint_t) 0, (symint_t) 0); | |
2426 | ||
2427 | *input_line_pointer = name_end; | |
2428 | ||
2429 | /* The line number follows, but we don't use it. */ | |
2430 | (void) get_absolute_expression (); | |
2431 | demand_empty_rest_of_line (); | |
2432 | } | |
2433 | \f | |
2434 | /* COFF debugging information is provided as a series of directives | |
2435 | (.def, .scl, etc.). We build up information as we read the | |
2436 | directives in the following static variables, and file it away when | |
2437 | we reach the .endef directive. */ | |
2438 | static char *coff_sym_name; | |
2439 | static type_info_t coff_type; | |
2440 | static sc_t coff_storage_class; | |
2441 | static st_t coff_symbol_typ; | |
2442 | static int coff_is_function; | |
2443 | static char *coff_tag; | |
2444 | static valueT coff_value; | |
2445 | symbolS *coff_sym_value; | |
2446 | static int coff_inside_enumeration; | |
2447 | ||
2448 | /* Handle a .def directive: start defining a symbol. */ | |
2449 | ||
2450 | void | |
2451 | ecoff_directive_def (ignore) | |
2452 | int ignore; | |
2453 | { | |
2454 | char *name; | |
2455 | char name_end; | |
2456 | ||
2457 | SKIP_WHITESPACE (); | |
2458 | ||
2459 | name = input_line_pointer; | |
2460 | name_end = get_symbol_end (); | |
2461 | ||
2462 | if (coff_sym_name != (char *) NULL) | |
2463 | as_warn (".def pseudo-op used inside of .def/.endef; ignored"); | |
2464 | else if (*name == '\0') | |
2465 | as_warn ("Empty symbol name in .def; ignored"); | |
2466 | else | |
2467 | { | |
2468 | if (coff_sym_name != (char *) NULL) | |
2469 | free (coff_sym_name); | |
2470 | if (coff_tag != (char *) NULL) | |
2471 | free (coff_tag); | |
2472 | coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1)); | |
2473 | strcpy (coff_sym_name, name); | |
2474 | coff_type = type_info_init; | |
2475 | coff_storage_class = sc_Nil; | |
2476 | coff_symbol_typ = st_Nil; | |
2477 | coff_is_function = 0; | |
2478 | coff_tag = (char *) NULL; | |
2479 | coff_value = 0; | |
2480 | coff_sym_value = (symbolS *) NULL; | |
2481 | } | |
2482 | ||
2483 | *input_line_pointer = name_end; | |
2484 | ||
2485 | demand_empty_rest_of_line (); | |
2486 | } | |
2487 | ||
2488 | /* Handle a .dim directive, used to give dimensions for an array. The | |
2489 | arguments are comma separated numbers. mips-tfile assumes that | |
2490 | there will not be more than 6 dimensions, and gdb won't read any | |
2491 | more than that anyhow, so I will also make that assumption. */ | |
2492 | ||
2493 | void | |
2494 | ecoff_directive_dim (ignore) | |
2495 | int ignore; | |
2496 | { | |
2497 | int dimens[N_TQ]; | |
2498 | int i; | |
2499 | ||
2500 | if (coff_sym_name == (char *) NULL) | |
2501 | { | |
2502 | as_warn (".dim pseudo-op used outside of .def/.endef; ignored"); | |
2503 | demand_empty_rest_of_line (); | |
2504 | return; | |
2505 | } | |
2506 | ||
2507 | for (i = 0; i < N_TQ; i++) | |
2508 | { | |
2509 | SKIP_WHITESPACE (); | |
2510 | dimens[i] = get_absolute_expression (); | |
2511 | if (*input_line_pointer == ',') | |
2512 | ++input_line_pointer; | |
2513 | else | |
2514 | { | |
2515 | if (*input_line_pointer != '\n' | |
2516 | && *input_line_pointer != ';') | |
2517 | as_warn ("Badly formed .dim directive"); | |
2518 | break; | |
2519 | } | |
2520 | } | |
2521 | ||
2522 | if (i == N_TQ) | |
2523 | --i; | |
2524 | ||
2525 | /* The dimensions are stored away in reverse order. */ | |
2526 | for (; i >= 0; i--) | |
2527 | { | |
2528 | if (coff_type.num_dims >= N_TQ) | |
2529 | { | |
2530 | as_warn ("Too many .dim entries"); | |
2531 | break; | |
2532 | } | |
2533 | coff_type.dimensions[coff_type.num_dims] = dimens[i]; | |
2534 | ++coff_type.num_dims; | |
2535 | } | |
2536 | ||
2537 | demand_empty_rest_of_line (); | |
2538 | } | |
2539 | ||
2540 | /* Handle a .scl directive, which sets the COFF storage class of the | |
2541 | symbol. */ | |
2542 | ||
2543 | void | |
2544 | ecoff_directive_scl (ignore) | |
2545 | int ignore; | |
2546 | { | |
2547 | long val; | |
2548 | ||
2549 | if (coff_sym_name == (char *) NULL) | |
2550 | { | |
2551 | as_warn (".scl pseudo-op used outside of .def/.endef; ignored"); | |
2552 | demand_empty_rest_of_line (); | |
2553 | return; | |
2554 | } | |
2555 | ||
2556 | val = get_absolute_expression (); | |
2557 | ||
2558 | coff_symbol_typ = map_coff_sym_type[val]; | |
2559 | coff_storage_class = map_coff_storage[val]; | |
2560 | ||
2561 | demand_empty_rest_of_line (); | |
2562 | } | |
2563 | ||
2564 | /* Handle a .size directive. For some reason mips-tfile.c thinks that | |
2565 | .size can have multiple arguments. We humor it, although gcc will | |
2566 | never generate more than one argument. */ | |
2567 | ||
2568 | void | |
2569 | ecoff_directive_size (ignore) | |
2570 | int ignore; | |
2571 | { | |
2572 | int sizes[N_TQ]; | |
2573 | int i; | |
2574 | ||
2575 | if (coff_sym_name == (char *) NULL) | |
2576 | { | |
2577 | as_warn (".size pseudo-op used outside of .def/.endef; ignored"); | |
2578 | demand_empty_rest_of_line (); | |
2579 | return; | |
2580 | } | |
2581 | ||
2582 | for (i = 0; i < N_TQ; i++) | |
2583 | { | |
2584 | SKIP_WHITESPACE (); | |
2585 | sizes[i] = get_absolute_expression (); | |
2586 | if (*input_line_pointer == ',') | |
2587 | ++input_line_pointer; | |
2588 | else | |
2589 | { | |
2590 | if (*input_line_pointer != '\n' | |
2591 | && *input_line_pointer != ';') | |
2592 | as_warn ("Badly formed .size directive"); | |
2593 | break; | |
2594 | } | |
2595 | } | |
2596 | ||
2597 | if (i == N_TQ) | |
2598 | --i; | |
2599 | ||
2600 | /* The sizes are stored away in reverse order. */ | |
2601 | for (; i >= 0; i--) | |
2602 | { | |
2603 | if (coff_type.num_sizes >= N_TQ) | |
2604 | { | |
2605 | as_warn ("Too many .size entries"); | |
2606 | break; | |
2607 | } | |
2608 | coff_type.sizes[coff_type.num_sizes] = sizes[i]; | |
2609 | ++coff_type.num_sizes; | |
2610 | } | |
2611 | ||
2612 | demand_empty_rest_of_line (); | |
2613 | } | |
2614 | ||
2615 | /* Handle the .type directive, which gives the COFF type of the | |
2616 | symbol. */ | |
2617 | ||
2618 | void | |
2619 | ecoff_directive_type (ignore) | |
2620 | int ignore; | |
2621 | { | |
2622 | long val; | |
2623 | tq_t *tq_ptr; | |
2624 | tq_t *tq_shft; | |
2625 | ||
2626 | if (coff_sym_name == (char *) NULL) | |
2627 | { | |
2628 | as_warn (".type pseudo-op used outside of .def/.endef; ignored"); | |
2629 | demand_empty_rest_of_line (); | |
2630 | return; | |
2631 | } | |
2632 | ||
2633 | val = get_absolute_expression (); | |
2634 | ||
2635 | coff_type.orig_type = BTYPE (val); | |
2636 | coff_type.basic_type = map_coff_types[coff_type.orig_type]; | |
2637 | ||
2638 | tq_ptr = &coff_type.type_qualifiers[N_TQ]; | |
2639 | while (val &~ N_BTMASK) | |
2640 | { | |
2641 | if (tq_ptr == &coff_type.type_qualifiers[0]) | |
2642 | { | |
2643 | as_warn ("Too derived values in .type argument"); | |
2644 | break; | |
2645 | } | |
2646 | if (ISPTR (val)) | |
2647 | *--tq_ptr = tq_Ptr; | |
2648 | else if (ISFCN (val)) | |
2649 | *--tq_ptr = tq_Proc; | |
2650 | else if (ISARY (val)) | |
2651 | *--tq_ptr = tq_Array; | |
2652 | else | |
2653 | as_fatal ("Unrecognized .type argument"); | |
2654 | ||
2655 | val = DECREF (val); | |
2656 | } | |
2657 | ||
2658 | tq_shft = &coff_type.type_qualifiers[0]; | |
2659 | while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) | |
2660 | *tq_shft++ = *tq_ptr++; | |
2661 | ||
2662 | if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) | |
2663 | { | |
2664 | /* If this is a function, ignore it, so that we don't get two | |
2665 | entries (one from the .ent, and one for the .def that | |
2666 | precedes it). Save the type information so that the end | |
2667 | block can properly add it after the begin block index. For | |
2668 | MIPS knows what reason, we must strip off the function type | |
2669 | at this point. */ | |
2670 | coff_is_function = 1; | |
2671 | tq_shft[-1] = tq_Nil; | |
2672 | } | |
2673 | ||
2674 | while (tq_shft != &coff_type.type_qualifiers[N_TQ]) | |
2675 | *tq_shft++ = tq_Nil; | |
2676 | ||
2677 | demand_empty_rest_of_line (); | |
2678 | } | |
2679 | ||
2680 | /* Handle the .tag directive, which gives the name of a structure, | |
2681 | union or enum. */ | |
2682 | ||
2683 | void | |
2684 | ecoff_directive_tag (ignore) | |
2685 | int ignore; | |
2686 | { | |
2687 | char *name; | |
2688 | char name_end; | |
2689 | ||
2690 | if (coff_sym_name == (char *) NULL) | |
2691 | { | |
2692 | as_warn (".tag pseudo-op used outside of .def/.endef; ignored"); | |
2693 | demand_empty_rest_of_line (); | |
2694 | return; | |
2695 | } | |
2696 | ||
2697 | name = input_line_pointer; | |
2698 | name_end = get_symbol_end (); | |
2699 | ||
2700 | coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1)); | |
2701 | strcpy (coff_tag, name); | |
2702 | ||
2703 | *input_line_pointer = name_end; | |
2704 | ||
2705 | demand_empty_rest_of_line (); | |
2706 | } | |
2707 | ||
2708 | /* Handle the .val directive, which gives the value of the symbol. It | |
2709 | may be the name of a static or global symbol. */ | |
2710 | ||
2711 | void | |
2712 | ecoff_directive_val (ignore) | |
2713 | int ignore; | |
2714 | { | |
2715 | if (coff_sym_name == (char *) NULL) | |
2716 | { | |
2717 | as_warn (".val pseudo-op used outside of .def/.endef; ignored"); | |
2718 | demand_empty_rest_of_line (); | |
2719 | return; | |
2720 | } | |
2721 | ||
2722 | if (! is_name_beginner ((unsigned char) *input_line_pointer)) | |
2723 | coff_value = get_absolute_expression (); | |
2724 | else | |
2725 | { | |
2726 | char *name; | |
2727 | char name_end; | |
2728 | ||
2729 | name = input_line_pointer; | |
2730 | name_end = get_symbol_end (); | |
2731 | ||
2732 | if (strcmp (name, ".") == 0) | |
2733 | as_warn ("`.val .' not supported"); | |
2734 | else | |
2735 | coff_sym_value = symbol_find_or_make (name); | |
2736 | ||
2737 | *input_line_pointer = name_end; | |
2738 | ||
2739 | /* FIXME: gcc can generate address expressions here in unusual | |
2740 | cases (search for "obscure" in sdbout.c), although this is | |
2741 | very unlikely for a MIPS chip. */ | |
2742 | } | |
2743 | ||
2744 | demand_empty_rest_of_line (); | |
2745 | } | |
2746 | ||
2747 | /* Handle the .endef directive, which terminates processing of COFF | |
2748 | debugging information for a symbol. */ | |
2749 | ||
2750 | void | |
2751 | ecoff_directive_endef (ignore) | |
2752 | int ignore; | |
2753 | { | |
2754 | char *name; | |
2755 | symint_t indx; | |
2756 | localsym_t *sym; | |
2757 | ||
2758 | demand_empty_rest_of_line (); | |
2759 | ||
2760 | if (coff_sym_name == (char *) NULL) | |
2761 | { | |
2762 | as_warn (".endef pseudo-op used before .def; ignored"); | |
2763 | return; | |
2764 | } | |
2765 | ||
2766 | name = coff_sym_name; | |
2767 | coff_sym_name = (char *) NULL; | |
2768 | ||
2769 | /* If the symbol is a static or external, we have already gotten the | |
2770 | appropriate type and class, so make sure we don't override those | |
2771 | values. This is needed because there are some type and classes | |
2772 | that are not in COFF, such as short data, etc. */ | |
2773 | if (coff_sym_value != (symbolS *) NULL) | |
2774 | { | |
2775 | coff_symbol_typ = st_Nil; | |
2776 | coff_storage_class = sc_Nil; | |
2777 | } | |
2778 | ||
2779 | coff_type.extra_sizes = coff_tag != (char *) NULL; | |
2780 | if (coff_type.num_dims > 0) | |
2781 | { | |
2782 | int diff = coff_type.num_dims - coff_type.num_sizes; | |
2783 | int i = coff_type.num_dims - 1; | |
2784 | int j; | |
2785 | ||
2786 | if (coff_type.num_sizes != 1 || diff < 0) | |
2787 | { | |
2788 | as_warn ("Bad COFF debugging info"); | |
2789 | return; | |
2790 | } | |
2791 | ||
2792 | /* If this is an array, make sure the same number of dimensions | |
2793 | and sizes were passed, creating extra sizes for multiply | |
2794 | dimensioned arrays if not passed. */ | |
2795 | coff_type.extra_sizes = 0; | |
2796 | if (diff) | |
2797 | { | |
2798 | j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; | |
2799 | while (j >= 0) | |
2800 | { | |
2801 | coff_type.sizes[j] = (((j - diff) >= 0) | |
2802 | ? coff_type.sizes[j - diff] | |
2803 | : 0); | |
2804 | j--; | |
2805 | } | |
2806 | ||
2807 | coff_type.num_sizes = i + 1; | |
2808 | for (i--; i >= 0; i--) | |
2809 | coff_type.sizes[i] = (coff_type.sizes[i + 1] | |
2810 | / coff_type.dimensions[i + 1]); | |
2811 | } | |
2812 | } | |
2813 | else if (coff_symbol_typ == st_Member | |
2814 | && coff_type.num_sizes - coff_type.extra_sizes == 1) | |
2815 | { | |
2816 | /* Is this a bitfield? This is indicated by a structure memeber | |
2817 | having a size field that isn't an array. */ | |
2818 | coff_type.bitfield = 1; | |
2819 | } | |
2820 | ||
2821 | /* Except for enumeration members & begin/ending of scopes, put the | |
2822 | type word in the aux. symbol table. */ | |
2823 | if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) | |
2824 | indx = 0; | |
2825 | else if (coff_inside_enumeration) | |
2826 | indx = cur_file_ptr->void_type; | |
2827 | else | |
2828 | { | |
2829 | if (coff_type.basic_type == bt_Struct | |
2830 | || coff_type.basic_type == bt_Union | |
2831 | || coff_type.basic_type == bt_Enum) | |
2832 | { | |
2833 | if (coff_tag == (char *) NULL) | |
2834 | { | |
2835 | as_warn ("No tag specified for %s", name); | |
2836 | return; | |
2837 | } | |
2838 | ||
2839 | coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, | |
2840 | coff_type.basic_type); | |
2841 | } | |
2842 | ||
2843 | if (coff_is_function) | |
2844 | { | |
2845 | last_func_type_info = coff_type; | |
2846 | last_func_sym_value = coff_sym_value; | |
2847 | return; | |
2848 | } | |
2849 | ||
2850 | indx = add_aux_sym_tir (&coff_type, | |
2851 | hash_yes, | |
2852 | &cur_file_ptr->thash_head[0]); | |
2853 | } | |
2854 | ||
2855 | /* Do any last minute adjustments that are necessary. */ | |
2856 | switch (coff_symbol_typ) | |
2857 | { | |
2858 | default: | |
2859 | break; | |
2860 | ||
2861 | /* For the beginning of structs, unions, and enumerations, the | |
2862 | size info needs to be passed in the value field. */ | |
2863 | case st_Block: | |
2864 | if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes | |
2865 | != 1) | |
2866 | { | |
2867 | as_warn ("Bad COFF debugging information"); | |
2868 | return; | |
2869 | } | |
2870 | else | |
2871 | coff_value = coff_type.sizes[0]; | |
2872 | ||
2873 | coff_inside_enumeration = (coff_type.orig_type == T_ENUM); | |
2874 | break; | |
2875 | ||
2876 | /* For the end of structs, unions, and enumerations, omit the | |
2877 | name which is always ".eos". This needs to be done last, so | |
2878 | that any error reporting above gives the correct name. */ | |
2879 | case st_End: | |
2880 | free (name); | |
2881 | name = (char *) NULL; | |
2882 | coff_value = 0; | |
2883 | coff_inside_enumeration = 0; | |
2884 | break; | |
2885 | ||
2886 | /* Members of structures and unions that aren't bitfields, need | |
2887 | to adjust the value from a byte offset to a bit offset. | |
2888 | Members of enumerations do not have the value adjusted, and | |
2889 | can be distinguished by indx == indexNil. For enumerations, | |
2890 | update the maximum enumeration value. */ | |
2891 | case st_Member: | |
2892 | if (! coff_type.bitfield && ! coff_inside_enumeration) | |
2893 | coff_value *= 8; | |
2894 | ||
2895 | break; | |
2896 | } | |
2897 | ||
2898 | /* Add the symbol. */ | |
2899 | sym = add_ecoff_symbol (name, | |
2900 | coff_symbol_typ, | |
2901 | coff_storage_class, | |
2902 | coff_sym_value, | |
2903 | (symint_t) coff_value, | |
2904 | indx); | |
2905 | ||
2906 | /* deal with struct, union, and enum tags. */ | |
2907 | if (coff_symbol_typ == st_Block) | |
2908 | { | |
2909 | /* Create or update the tag information. */ | |
2910 | tag_t *tag_ptr = get_tag (name, | |
2911 | sym, | |
2912 | coff_type.basic_type); | |
2913 | forward_t **pf; | |
2914 | ||
2915 | /* Remember any forward references. */ | |
2916 | for (pf = &sym->forward_ref; | |
2917 | *pf != (forward_t *) NULL; | |
2918 | pf = &(*pf)->next) | |
2919 | ; | |
2920 | *pf = tag_ptr->forward_ref; | |
2921 | tag_ptr->forward_ref = (forward_t *) NULL; | |
2922 | } | |
2923 | } | |
2924 | \f | |
2925 | /* Parse .end directives. */ | |
2926 | ||
2927 | void | |
2928 | ecoff_directive_end (ignore) | |
2929 | int ignore; | |
2930 | { | |
2931 | char *name; | |
2932 | char name_end; | |
2933 | register int ch; | |
2934 | symbolS *ent; | |
2935 | ||
2936 | if (cur_file_ptr == (efdr_t *) NULL) | |
2937 | { | |
2938 | as_warn (".end directive without a preceding .file directive"); | |
2939 | demand_empty_rest_of_line (); | |
2940 | return; | |
2941 | } | |
2942 | ||
2943 | if (cur_proc_ptr == (proc_t *) NULL) | |
2944 | { | |
2945 | as_warn (".end directive without a preceding .ent directive"); | |
2946 | demand_empty_rest_of_line (); | |
2947 | return; | |
2948 | } | |
2949 | ||
2950 | name = input_line_pointer; | |
2951 | name_end = get_symbol_end (); | |
012353f7 | 2952 | |
9faec336 ILT |
2953 | ch = *name; |
2954 | if (! is_name_beginner (ch)) | |
2955 | { | |
2956 | as_warn (".end directive has no name"); | |
2957 | *input_line_pointer = name_end; | |
2958 | demand_empty_rest_of_line (); | |
2959 | return; | |
2960 | } | |
2961 | ||
2962 | /* The value is the distance between the .end directive and the | |
2963 | corresponding symbol. We create a fake symbol to hold the | |
2964 | current location, and put in the offset when we write out the | |
2965 | symbol. */ | |
2966 | ent = symbol_find (name); | |
2967 | if (ent == (symbolS *) NULL) | |
2968 | as_warn (".end directive names unknown symbol"); | |
2969 | else | |
2970 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, | |
2971 | symbol_new ("L0\001", now_seg, | |
2972 | (valueT) frag_now_fix (), | |
2973 | frag_now), | |
2974 | (symint_t) 0, (symint_t) 0); | |
2975 | ||
2976 | cur_proc_ptr = (proc_t *) NULL; | |
2977 | ||
2978 | *input_line_pointer = name_end; | |
2979 | demand_empty_rest_of_line (); | |
2980 | } | |
2981 | \f | |
2982 | /* Parse .ent directives. */ | |
2983 | ||
2984 | void | |
2985 | ecoff_directive_ent (ignore) | |
2986 | int ignore; | |
2987 | { | |
2988 | char *name; | |
2989 | char name_end; | |
2990 | register int ch; | |
2991 | ||
2992 | if (cur_file_ptr == (efdr_t *) NULL) | |
2993 | add_file ((const char *) NULL, 0); | |
2994 | ||
2995 | if (cur_proc_ptr != (proc_t *) NULL) | |
2996 | { | |
2997 | as_warn ("second .ent directive found before .end directive"); | |
2998 | demand_empty_rest_of_line (); | |
2999 | return; | |
3000 | } | |
3001 | ||
3002 | name = input_line_pointer; | |
3003 | name_end = get_symbol_end (); | |
3004 | ||
3005 | ch = *name; | |
3006 | if (! is_name_beginner (ch)) | |
3007 | { | |
3008 | as_warn (".ent directive has no name"); | |
3009 | *input_line_pointer = name_end; | |
3010 | demand_empty_rest_of_line (); | |
3011 | return; | |
3012 | } | |
3013 | ||
3014 | add_procedure (name); | |
3015 | ||
3016 | *input_line_pointer = name_end; | |
3017 | ||
3018 | /* The .ent directive is sometimes followed by a number. I'm not | |
3019 | really sure what the number means. I don't see any way to store | |
3020 | the information in the PDR. The Irix 4 assembler seems to ignore | |
3021 | the information. */ | |
3022 | SKIP_WHITESPACE (); | |
3023 | if (*input_line_pointer == ',') | |
3024 | { | |
3025 | ++input_line_pointer; | |
3026 | SKIP_WHITESPACE (); | |
3027 | } | |
3028 | if (isdigit (*input_line_pointer) || *input_line_pointer == '-') | |
3029 | (void) get_absolute_expression (); | |
3030 | ||
3031 | demand_empty_rest_of_line (); | |
3032 | } | |
3033 | \f | |
3034 | /* Parse .file directives. */ | |
3035 | ||
3036 | void | |
3037 | ecoff_directive_file (ignore) | |
3038 | int ignore; | |
3039 | { | |
3040 | int indx; | |
3041 | char *name; | |
3042 | int len; | |
3043 | ||
3044 | if (cur_proc_ptr != (proc_t *) NULL) | |
3045 | { | |
3046 | as_warn ("No way to handle .file within .ent/.end section"); | |
3047 | demand_empty_rest_of_line (); | |
3048 | return; | |
3049 | } | |
3050 | ||
3051 | indx = (int) get_absolute_expression (); | |
3052 | ||
3053 | /* FIXME: we don't have to save the name here. */ | |
3054 | name = demand_copy_C_string (&len); | |
3055 | ||
3056 | add_file (name, indx - 1); | |
3057 | ||
3058 | demand_empty_rest_of_line (); | |
3059 | } | |
3060 | \f | |
3061 | /* Parse .fmask directives. */ | |
3062 | ||
3063 | void | |
3064 | ecoff_directive_fmask (ignore) | |
3065 | int ignore; | |
3066 | { | |
3067 | long val; | |
3068 | ||
3069 | if (cur_proc_ptr == (proc_t *) NULL) | |
3070 | { | |
3071 | as_warn (".fmask outside of .ent"); | |
3072 | demand_empty_rest_of_line (); | |
3073 | return; | |
3074 | } | |
3075 | ||
3076 | if (get_absolute_expression_and_terminator (&val) != ',') | |
3077 | { | |
3078 | as_warn ("Bad .fmask directive"); | |
3079 | --input_line_pointer; | |
3080 | demand_empty_rest_of_line (); | |
3081 | return; | |
3082 | } | |
3083 | ||
3084 | cur_proc_ptr->pdr.fregmask = val; | |
3085 | cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); | |
3086 | ||
3087 | demand_empty_rest_of_line (); | |
3088 | } | |
3089 | \f | |
3090 | /* Parse .frame directives. */ | |
3091 | ||
3092 | void | |
3093 | ecoff_directive_frame (ignore) | |
3094 | int ignore; | |
3095 | { | |
3096 | long val; | |
3097 | ||
3098 | if (cur_proc_ptr == (proc_t *) NULL) | |
3099 | { | |
3100 | as_warn (".frame outside of .ent"); | |
3101 | demand_empty_rest_of_line (); | |
3102 | return; | |
3103 | } | |
3104 | ||
3105 | cur_proc_ptr->pdr.framereg = tc_get_register (1); | |
3106 | ||
3107 | SKIP_WHITESPACE (); | |
3108 | if (*input_line_pointer++ != ',' | |
3109 | || get_absolute_expression_and_terminator (&val) != ',') | |
3110 | { | |
3111 | as_warn ("Bad .frame directive"); | |
3112 | --input_line_pointer; | |
3113 | demand_empty_rest_of_line (); | |
3114 | return; | |
3115 | } | |
3116 | ||
3117 | cur_proc_ptr->pdr.frameoffset = val; | |
3118 | ||
3119 | cur_proc_ptr->pdr.pcreg = tc_get_register (0); | |
3120 | ||
012353f7 KR |
3121 | #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according |
3122 | to Sandro. I don't yet know where this value should be stored, if | |
3123 | anywhere. */ | |
9faec336 | 3124 | demand_empty_rest_of_line (); |
012353f7 KR |
3125 | #else |
3126 | s_ignore (42); | |
3127 | #endif | |
9faec336 ILT |
3128 | } |
3129 | \f | |
3130 | /* Parse .mask directives. */ | |
3131 | ||
3132 | void | |
3133 | ecoff_directive_mask (ignore) | |
3134 | int ignore; | |
3135 | { | |
3136 | long val; | |
3137 | ||
3138 | if (cur_proc_ptr == (proc_t *) NULL) | |
3139 | { | |
3140 | as_warn (".mask outside of .ent"); | |
3141 | demand_empty_rest_of_line (); | |
3142 | return; | |
3143 | } | |
3144 | ||
3145 | if (get_absolute_expression_and_terminator (&val) != ',') | |
3146 | { | |
3147 | as_warn ("Bad .mask directive"); | |
3148 | --input_line_pointer; | |
3149 | demand_empty_rest_of_line (); | |
3150 | return; | |
3151 | } | |
3152 | ||
3153 | cur_proc_ptr->pdr.regmask = val; | |
3154 | cur_proc_ptr->pdr.regoffset = get_absolute_expression (); | |
3155 | ||
3156 | demand_empty_rest_of_line (); | |
3157 | } | |
3158 | \f | |
3159 | /* Parse .loc directives. */ | |
3160 | ||
3161 | void | |
3162 | ecoff_directive_loc (ignore) | |
3163 | int ignore; | |
3164 | { | |
3165 | lineno_list_t *list; | |
3166 | symint_t lineno; | |
3167 | ||
3168 | if (cur_file_ptr == (efdr_t *) NULL) | |
3169 | { | |
3170 | as_warn (".loc before .file"); | |
3171 | demand_empty_rest_of_line (); | |
3172 | return; | |
3173 | } | |
3174 | ||
3175 | if (now_seg != text_section) | |
3176 | { | |
3177 | as_warn (".loc outside of .text"); | |
3178 | demand_empty_rest_of_line (); | |
3179 | return; | |
3180 | } | |
3181 | ||
3182 | /* Skip the file number. */ | |
3183 | SKIP_WHITESPACE (); | |
3184 | get_absolute_expression (); | |
3185 | SKIP_WHITESPACE (); | |
3186 | ||
3187 | lineno = get_absolute_expression (); | |
3188 | ||
3189 | #ifndef NO_LISTING | |
3190 | if (listing) | |
3191 | listing_source_line (lineno); | |
3192 | #endif | |
3193 | ||
3194 | /* If we're building stabs, then output a special label rather than | |
3195 | ECOFF line number info. */ | |
3196 | if (stabs_seen) | |
3197 | { | |
3198 | (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, | |
3199 | symbol_new ("L0\001", now_seg, | |
3200 | (valueT) frag_now_fix (), | |
3201 | frag_now), | |
3202 | 0, lineno); | |
3203 | return; | |
3204 | } | |
3205 | ||
3206 | list = allocate_lineno_list (); | |
3207 | ||
3208 | list->next = (lineno_list_t *) NULL; | |
3209 | list->file = cur_file_ptr; | |
3210 | list->proc = cur_proc_ptr; | |
3211 | list->frag = frag_now; | |
3212 | list->paddr = frag_now_fix (); | |
3213 | list->lineno = lineno; | |
3214 | ||
3215 | /* A .loc directive will sometimes appear before a .ent directive, | |
3216 | which means that cur_proc_ptr will be NULL here. Arrange to | |
3217 | patch this up. */ | |
3218 | if (cur_proc_ptr == (proc_t *) NULL) | |
3219 | { | |
3220 | lineno_list_t **pl; | |
3221 | ||
3222 | pl = &noproc_lineno; | |
3223 | while (*pl != (lineno_list_t *) NULL) | |
3224 | pl = &(*pl)->next; | |
3225 | *pl = list; | |
3226 | } | |
3227 | else | |
3228 | { | |
3229 | *last_lineno_ptr = list; | |
3230 | last_lineno_ptr = &list->next; | |
3231 | } | |
3232 | } | |
3233 | \f | |
3234 | /* Make sure the @stabs symbol is emitted. */ | |
3235 | ||
3236 | static void | |
3237 | mark_stabs (ignore) | |
3238 | int ignore; | |
3239 | { | |
3240 | if (! stabs_seen) | |
3241 | { | |
3242 | /* Add a dummy @stabs dymbol. */ | |
3243 | stabs_seen = 1; | |
3244 | (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo, | |
3245 | (symbolS *) NULL, | |
3246 | (symint_t) -1, ECOFF_MARK_STAB (0)); | |
3247 | } | |
3248 | } | |
3249 | \f | |
3250 | /* Handle .stabs directives. The actual parsing routine is done by a | |
3251 | generic routine. This routine is called via OBJ_PROCESS_STAB. | |
3252 | When this is called, input_line_pointer will be pointing at the | |
3253 | value field of the stab. | |
3254 | ||
3255 | .stabs directives have five fields: | |
3256 | "string" a string, encoding the type information. | |
3257 | code a numeric code, defined in <stab.h> | |
3258 | 0 a zero | |
3259 | desc a zero or line number | |
3260 | value a numeric value or an address. | |
3261 | ||
3262 | If the value is relocatable, we transform this into: | |
3263 | iss points as an index into string space | |
3264 | value value from lookup of the name | |
3265 | st st from lookup of the name | |
3266 | sc sc from lookup of the name | |
3267 | index code|CODE_MASK | |
3268 | ||
3269 | If the value is not relocatable, we transform this into: | |
3270 | iss points as an index into string space | |
3271 | value value | |
3272 | st st_Nil | |
3273 | sc sc_Nil | |
3274 | index code|CODE_MASK | |
3275 | ||
3276 | .stabn directives have four fields (string is null): | |
3277 | code a numeric code, defined in <stab.h> | |
3278 | 0 a zero | |
3279 | desc a zero or a line number | |
3280 | value a numeric value or an address. */ | |
3281 | ||
3282 | void | |
3283 | ecoff_stab (what, string, type, other, desc) | |
3284 | int what; | |
3285 | const char *string; | |
3286 | int type; | |
3287 | int other; | |
3288 | int desc; | |
3289 | { | |
3290 | efdr_t *save_file_ptr = cur_file_ptr; | |
3291 | symbolS *sym; | |
3292 | symint_t value; | |
3293 | st_t st; | |
3294 | sc_t sc; | |
3295 | symint_t indx; | |
012353f7 | 3296 | localsym_t *hold = NULL; |
9faec336 ILT |
3297 | |
3298 | /* We don't handle .stabd. */ | |
3299 | if (what != 's' && what != 'n') | |
3300 | { | |
3301 | as_bad (".stab%c is not supported", what); | |
3302 | return; | |
3303 | } | |
3304 | ||
3305 | /* A .stabn uses a null name, not an empty string. */ | |
3306 | if (what == 'n') | |
3307 | string = NULL; | |
3308 | ||
3309 | /* We ignore the other field. */ | |
3310 | if (other != 0) | |
3311 | as_warn (".stab%c: ignoring non-zero other field", what); | |
3312 | ||
3313 | /* Make sure we have a current file. */ | |
3314 | if (cur_file_ptr == (efdr_t *) NULL) | |
3315 | { | |
3316 | add_file ((const char *) NULL, 0); | |
3317 | save_file_ptr = cur_file_ptr; | |
3318 | } | |
3319 | ||
3320 | /* For stabs in ECOFF, the first symbol must be @stabs. This is a | |
3321 | signal to gdb. */ | |
3322 | if (stabs_seen == 0) | |
3323 | mark_stabs (0); | |
3324 | ||
3325 | /* Line number stabs are handled differently, since they have two | |
3326 | values, the line number and the address of the label. We use the | |
3327 | index field (aka desc) to hold the line number, and the value | |
3328 | field to hold the address. The symbol type is st_Label, which | |
3329 | should be different from the other stabs, so that gdb can | |
3330 | recognize it. */ | |
3331 | if (type == N_SLINE) | |
3332 | { | |
3333 | SYMR dummy_symr; | |
3334 | char *name; | |
3335 | char name_end; | |
3336 | ||
3337 | #ifndef NO_LISTING | |
3338 | if (listing) | |
3339 | listing_source_line ((unsigned int) desc); | |
3340 | #endif | |
3341 | ||
3342 | dummy_symr.index = desc; | |
3343 | if (dummy_symr.index != desc) | |
3344 | { | |
3345 | as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)", | |
3346 | desc, what); | |
3347 | return; | |
3348 | } | |
3349 | ||
3350 | name = input_line_pointer; | |
3351 | name_end = get_symbol_end (); | |
3352 | ||
3353 | sym = symbol_find_or_make (name); | |
3354 | *input_line_pointer = name_end; | |
3355 | ||
3356 | value = 0; | |
3357 | st = st_Label; | |
3358 | sc = sc_Text; | |
3359 | indx = desc; | |
3360 | } | |
3361 | else | |
3362 | { | |
3363 | #ifndef NO_LISTING | |
3364 | if (listing && (type == N_SO || type == N_SOL)) | |
3365 | listing_source_file (string); | |
3366 | #endif | |
012353f7 | 3367 | |
9faec336 ILT |
3368 | if (isdigit (*input_line_pointer) |
3369 | || *input_line_pointer == '-' | |
3370 | || *input_line_pointer == '+') | |
3371 | { | |
3372 | st = st_Nil; | |
3373 | sc = sc_Nil; | |
3374 | sym = (symbolS *) NULL; | |
3375 | value = get_absolute_expression (); | |
3376 | } | |
3377 | else if (! is_name_beginner ((unsigned char) *input_line_pointer)) | |
3378 | { | |
3379 | as_warn ("Illegal .stab%c directive, bad character", what); | |
3380 | return; | |
3381 | } | |
3382 | else | |
3383 | { | |
3384 | char *name; | |
3385 | char name_end; | |
3386 | ||
3387 | name = input_line_pointer; | |
3388 | name_end = get_symbol_end (); | |
3389 | ||
3390 | sym = symbol_find_or_make (name); | |
3391 | ||
3392 | sc = sc_Nil; | |
3393 | st = st_Nil; | |
3394 | value = 0; | |
3395 | ||
3396 | *input_line_pointer = name_end; | |
3397 | if (name_end == '+' || name_end == '-') | |
3398 | { | |
3399 | ++input_line_pointer; | |
3400 | value = get_absolute_expression (); | |
3401 | if (name_end == '-') | |
3402 | value = - value; | |
3403 | } | |
3404 | } | |
3405 | ||
3406 | indx = ECOFF_MARK_STAB (type); | |
3407 | } | |
3408 | ||
012353f7 KR |
3409 | /* Don't store the stabs symbol we are creating as the type of the |
3410 | ECOFF symbol. We want to compute the type of the ECOFF symbol | |
3411 | independently. */ | |
3412 | if (sym != (symbolS *) NULL) | |
3413 | hold = sym->ecoff_symbol; | |
3414 | ||
9faec336 ILT |
3415 | (void) add_ecoff_symbol (string, st, sc, sym, value, indx); |
3416 | ||
012353f7 KR |
3417 | if (sym != (symbolS *) NULL) |
3418 | sym->ecoff_symbol = hold; | |
3419 | ||
9faec336 ILT |
3420 | /* Restore normal file type. */ |
3421 | cur_file_ptr = save_file_ptr; | |
3422 | } | |
3423 | \f | |
c6858c1b ILT |
3424 | /* Frob an ECOFF symbol. A .extern symbol will have a value, but is |
3425 | not common. Small common symbols go into a special .scommon | |
3426 | section rather than bfd_com_section. */ | |
3427 | ||
3428 | void | |
3429 | ecoff_frob_symbol (sym) | |
3430 | symbolS *sym; | |
3431 | { | |
3432 | if (sym->ecoff_undefined) | |
3433 | S_SET_SEGMENT (sym, undefined_section); | |
3434 | else if (S_IS_COMMON (sym) | |
3435 | && S_GET_VALUE (sym) > 0 | |
e4fc9376 | 3436 | && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) |
c6858c1b ILT |
3437 | { |
3438 | static asection scom_section; | |
3439 | static asymbol scom_symbol; | |
3440 | ||
3441 | /* We must construct a fake section similar to bfd_com_section | |
3442 | but with the name .scommon. */ | |
3443 | if (scom_section.name == NULL) | |
3444 | { | |
3445 | scom_section = bfd_com_section; | |
3446 | scom_section.name = ".scommon"; | |
3447 | scom_section.output_section = &scom_section; | |
3448 | scom_section.symbol = &scom_symbol; | |
3449 | scom_section.symbol_ptr_ptr = &scom_section.symbol; | |
3450 | scom_symbol = *bfd_com_section.symbol; | |
3451 | scom_symbol.name = ".scommon"; | |
3452 | scom_symbol.section = &scom_section; | |
3453 | } | |
3454 | S_SET_SEGMENT (sym, &scom_section); | |
3455 | } | |
3456 | } | |
3457 | \f | |
9faec336 ILT |
3458 | /* Add bytes to the symbolic information buffer. */ |
3459 | ||
3460 | static char * | |
3461 | ecoff_add_bytes (buf, bufend, bufptr, need) | |
3462 | char **buf; | |
3463 | char **bufend; | |
3464 | char *bufptr; | |
3465 | unsigned long need; | |
3466 | { | |
3467 | unsigned long at; | |
3468 | unsigned long want; | |
3469 | ||
3470 | at = bufptr - *buf; | |
3471 | need -= *bufend - bufptr; | |
3472 | if (need < PAGE_SIZE) | |
3473 | need = PAGE_SIZE; | |
3474 | want = (*bufend - *buf) + need; | |
3475 | *buf = xrealloc (*buf, want); | |
3476 | *bufend = *buf + want; | |
3477 | return *buf + at; | |
3478 | } | |
3479 | ||
3480 | /* Adjust the symbolic information buffer to the alignment required | |
3481 | for the ECOFF target debugging information. */ | |
3482 | ||
3483 | static unsigned long | |
3484 | ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr) | |
3485 | const struct ecoff_debug_swap *backend; | |
3486 | char **buf; | |
3487 | char **bufend; | |
3488 | unsigned long offset; | |
3489 | char **bufptrptr; | |
3490 | { | |
3491 | bfd_size_type align; | |
3492 | ||
3493 | align = backend->debug_align; | |
3494 | if ((offset & (align - 1)) != 0) | |
3495 | { | |
3496 | unsigned long add; | |
3497 | ||
3498 | add = align - (offset & (align - 1)); | |
3499 | if (*bufend - (*buf + offset) < add) | |
3500 | (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); | |
3501 | memset (*buf + offset, 0, add); | |
3502 | offset += add; | |
3503 | if (bufptrptr != (char **) NULL) | |
3504 | *bufptrptr = *buf + offset; | |
3505 | } | |
3506 | ||
3507 | return offset; | |
3508 | } | |
3509 | ||
3510 | /* Build the line number information. */ | |
3511 | ||
3512 | static unsigned long | |
3513 | ecoff_build_lineno (backend, buf, bufend, offset, linecntptr) | |
3514 | const struct ecoff_debug_swap *backend; | |
3515 | char **buf; | |
3516 | char **bufend; | |
3517 | unsigned long offset; | |
3518 | long *linecntptr; | |
3519 | { | |
3520 | char *bufptr; | |
3521 | register lineno_list_t *l; | |
3522 | lineno_list_t *last; | |
3523 | efdr_t *file; | |
3524 | proc_t *proc; | |
3525 | unsigned long c; | |
3526 | long iline; | |
3527 | long totcount; | |
3528 | ||
3529 | if (linecntptr != (long *) NULL) | |
3530 | *linecntptr = 0; | |
3531 | ||
3532 | bufptr = *buf + offset; | |
3533 | ||
3534 | file = (efdr_t *) NULL; | |
3535 | proc = (proc_t *) NULL; | |
3536 | last = (lineno_list_t *) NULL; | |
3537 | c = offset; | |
3538 | iline = 0; | |
3539 | totcount = 0; | |
3540 | for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next) | |
3541 | { | |
3542 | long count; | |
3543 | long delta; | |
3544 | ||
3545 | /* Get the offset to the memory address of the next line number | |
3546 | (in words). Do this first, so that we can skip ahead to the | |
3547 | next useful line number entry. */ | |
3548 | if (l->next == (lineno_list_t *) NULL) | |
3549 | count = 0; | |
3550 | else | |
3551 | { | |
3552 | count = ((l->next->frag->fr_address + l->next->paddr | |
3553 | - (l->frag->fr_address + l->paddr)) | |
3554 | >> 2); | |
3555 | if (count <= 0) | |
3556 | { | |
3557 | /* Don't change last, so we still get the right delta. */ | |
3558 | continue; | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | if (l->file != file || l->proc != proc) | |
3563 | { | |
3564 | if (l->proc != proc && proc != (proc_t *) NULL) | |
3565 | proc->pdr.lnHigh = last->lineno; | |
3566 | if (l->file != file && file != (efdr_t *) NULL) | |
3567 | { | |
3568 | file->fdr.cbLine = c - file->fdr.cbLineOffset; | |
3569 | /* The cline field is ill-documented. This is a guess | |
3570 | at the right value. */ | |
3571 | file->fdr.cline = totcount + count; | |
3572 | if (linecntptr != (long *) NULL) | |
3573 | *linecntptr += totcount + count; | |
3574 | totcount = 0; | |
3575 | } | |
3576 | ||
3577 | if (l->file != file) | |
3578 | { | |
3579 | file = l->file; | |
3580 | file->fdr.ilineBase = iline; | |
3581 | file->fdr.cbLineOffset = c; | |
3582 | } | |
3583 | if (l->proc != proc) | |
3584 | { | |
3585 | proc = l->proc; | |
3586 | if (proc != (proc_t *) NULL) | |
3587 | { | |
3588 | proc->pdr.lnLow = l->lineno; | |
3589 | proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; | |
3590 | /* The iline field is ill-documented. This is a | |
3591 | guess at the right value. */ | |
3592 | proc->pdr.iline = totcount; | |
3593 | } | |
3594 | } | |
3595 | ||
3596 | last = (lineno_list_t *) NULL; | |
012353f7 | 3597 | } |
9faec336 ILT |
3598 | |
3599 | totcount += count; | |
3600 | ||
3601 | /* Get the offset to this line number. */ | |
3602 | if (last == (lineno_list_t *) NULL) | |
3603 | delta = 0; | |
3604 | else | |
3605 | delta = l->lineno - last->lineno; | |
3606 | ||
3607 | /* Put in the offset to this line number. */ | |
3608 | while (delta != 0) | |
3609 | { | |
3610 | int setcount; | |
3611 | ||
3612 | /* 1 is added to each count read. */ | |
3613 | --count; | |
3614 | /* We can only adjust the word count by up to 15 words at a | |
3615 | time. */ | |
3616 | if (count <= 0x0f) | |
3617 | { | |
3618 | setcount = count; | |
3619 | count = 0; | |
3620 | } | |
3621 | else | |
3622 | { | |
3623 | setcount = 0x0f; | |
3624 | count -= 0x0f; | |
3625 | } | |
3626 | if (delta >= -7 && delta <= 7) | |
3627 | { | |
3628 | if (bufptr >= *bufend) | |
3629 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); | |
3630 | *bufptr++ = setcount + (delta << 4); | |
3631 | delta = 0; | |
3632 | ++c; | |
3633 | } | |
3634 | else | |
3635 | { | |
3636 | int set; | |
3637 | ||
3638 | if (*bufend - bufptr < 3) | |
3639 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); | |
3640 | *bufptr++ = setcount + (8 << 4); | |
3641 | if (delta < -0x8000) | |
3642 | { | |
3643 | set = -0x8000; | |
3644 | delta += 0x8000; | |
3645 | } | |
3646 | else if (delta > 0x7fff) | |
3647 | { | |
3648 | set = 0x7fff; | |
3649 | delta -= 0x7fff; | |
3650 | } | |
3651 | else | |
3652 | { | |
3653 | set = delta; | |
3654 | delta = 0; | |
3655 | } | |
3656 | *bufptr++ = set >> 8; | |
3657 | *bufptr++ = set & 0xffff; | |
3658 | c += 3; | |
3659 | } | |
3660 | } | |
3661 | ||
3662 | /* Finish adjusting the count. */ | |
3663 | while (count > 0) | |
3664 | { | |
3665 | if (bufptr >= *bufend) | |
3666 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); | |
3667 | /* 1 is added to each count read. */ | |
3668 | --count; | |
3669 | if (count > 0x0f) | |
3670 | { | |
3671 | *bufptr++ = 0x0f; | |
3672 | count -= 0x0f; | |
3673 | } | |
3674 | else | |
3675 | { | |
3676 | *bufptr++ = count; | |
3677 | count = 0; | |
3678 | } | |
3679 | ++c; | |
3680 | } | |
3681 | ||
3682 | ++iline; | |
3683 | last = l; | |
3684 | } | |
3685 | ||
3686 | if (proc != (proc_t *) NULL) | |
3687 | proc->pdr.lnHigh = last->lineno; | |
3688 | if (file != (efdr_t *) NULL) | |
3689 | { | |
3690 | file->fdr.cbLine = c - file->fdr.cbLineOffset; | |
3691 | file->fdr.cline = totcount; | |
3692 | } | |
3693 | ||
3694 | if (linecntptr != (long *) NULL) | |
3695 | *linecntptr += totcount; | |
3696 | ||
3697 | c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); | |
3698 | ||
3699 | return c; | |
3700 | } | |
3701 | ||
3702 | /* Build and swap out the symbols. */ | |
3703 | ||
3704 | static unsigned long | |
3705 | ecoff_build_symbols (backend, buf, bufend, offset) | |
3706 | const struct ecoff_debug_swap *backend; | |
3707 | char **buf; | |
3708 | char **bufend; | |
3709 | unsigned long offset; | |
3710 | { | |
3711 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
3712 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
3713 | = backend->swap_sym_out; | |
3714 | char *sym_out; | |
3715 | long isym; | |
3716 | vlinks_t *file_link; | |
3717 | ||
3718 | sym_out = *buf + offset; | |
3719 | ||
3720 | isym = 0; | |
3721 | ||
3722 | /* The symbols are stored by file. */ | |
3723 | for (file_link = file_desc.first; | |
3724 | file_link != (vlinks_t *) NULL; | |
3725 | file_link = file_link->next) | |
3726 | { | |
3727 | int ifilesym; | |
3728 | int fil_cnt; | |
3729 | efdr_t *fil_ptr; | |
3730 | efdr_t *fil_end; | |
3731 | ||
3732 | if (file_link->next == (vlinks_t *) NULL) | |
3733 | fil_cnt = file_desc.objects_last_page; | |
3734 | else | |
3735 | fil_cnt = file_desc.objects_per_page; | |
3736 | fil_ptr = file_link->datum->file; | |
3737 | fil_end = fil_ptr + fil_cnt; | |
3738 | for (; fil_ptr < fil_end; fil_ptr++) | |
3739 | { | |
3740 | vlinks_t *sym_link; | |
3741 | ||
3742 | fil_ptr->fdr.isymBase = isym; | |
3743 | ifilesym = isym; | |
3744 | for (sym_link = fil_ptr->symbols.first; | |
3745 | sym_link != (vlinks_t *) NULL; | |
3746 | sym_link = sym_link->next) | |
3747 | { | |
3748 | int sym_cnt; | |
3749 | localsym_t *sym_ptr; | |
3750 | localsym_t *sym_end; | |
3751 | ||
3752 | if (sym_link->next == (vlinks_t *) NULL) | |
3753 | sym_cnt = fil_ptr->symbols.objects_last_page; | |
3754 | else | |
3755 | sym_cnt = fil_ptr->symbols.objects_per_page; | |
3756 | sym_ptr = sym_link->datum->sym; | |
3757 | sym_end = sym_ptr + sym_cnt; | |
3758 | for (; sym_ptr < sym_end; sym_ptr++) | |
3759 | { | |
3760 | int local; | |
3761 | symbolS *as_sym; | |
3762 | forward_t *f; | |
3763 | ||
3764 | know (sym_ptr->file_ptr == fil_ptr); | |
3765 | ||
3766 | /* If there is no associated gas symbol, then this | |
3767 | is a pure debugging symbol. We have already | |
3768 | added the name (if any) to fil_ptr->strings. | |
3769 | Otherwise we must decide whether this is an | |
3770 | external or a local symbol (actually, it may be | |
3771 | both if the local provides additional debugging | |
3772 | information for the external). */ | |
3773 | local = 1; | |
3774 | as_sym = sym_ptr->as_sym; | |
3775 | if (as_sym != (symbolS *) NULL) | |
3776 | { | |
3777 | symint_t indx; | |
3778 | ||
3779 | /* The value of a block start symbol is the | |
3780 | offset from the start of the procedure. For | |
3781 | other symbols we just use the gas value (but | |
3782 | we must offset it by the vma of the section, | |
3783 | just as BFD does, because BFD will not see | |
3784 | this value). */ | |
3785 | if (sym_ptr->ecoff_sym.asym.st == (int) st_Block | |
3786 | && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) | |
3787 | { | |
3788 | symbolS *begin_sym; | |
3789 | ||
3790 | know (sym_ptr->proc_ptr != (proc_t *) NULL); | |
3791 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; | |
3792 | if (S_GET_SEGMENT (as_sym) | |
3793 | != S_GET_SEGMENT (begin_sym)) | |
3794 | as_warn (".begin/.bend in different segments"); | |
3795 | sym_ptr->ecoff_sym.asym.value = | |
3796 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); | |
3797 | } | |
3798 | else | |
3799 | sym_ptr->ecoff_sym.asym.value = | |
3800 | (S_GET_VALUE (as_sym) | |
3801 | + bfd_get_section_vma (stdoutput, | |
3802 | S_GET_SEGMENT (as_sym))); | |
3803 | ||
3804 | /* Set st_Proc to st_StaticProc for local | |
3805 | functions. */ | |
3806 | if (sym_ptr->ecoff_sym.asym.st == st_Proc | |
3807 | && S_IS_DEFINED (as_sym) | |
3808 | && ! S_IS_EXTERNAL (as_sym)) | |
3809 | sym_ptr->ecoff_sym.asym.st = st_StaticProc; | |
3810 | ||
3811 | /* Get the type and storage class based on where | |
3812 | the symbol actually wound up. Traditionally, | |
3813 | N_LBRAC and N_RBRAC are *not* relocated. */ | |
3814 | indx = sym_ptr->ecoff_sym.asym.index; | |
3815 | if (sym_ptr->ecoff_sym.asym.st == st_Nil | |
3816 | && sym_ptr->ecoff_sym.asym.sc == sc_Nil | |
3817 | && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) | |
3818 | || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) | |
3819 | && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) | |
3820 | { | |
3821 | segT seg; | |
3822 | const char *segname; | |
3823 | st_t st; | |
3824 | sc_t sc; | |
3825 | ||
3826 | seg = S_GET_SEGMENT (as_sym); | |
3827 | segname = segment_name (seg); | |
3828 | ||
012353f7 KR |
3829 | if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) |
3830 | && (S_IS_EXTERNAL (as_sym) | |
3831 | || ! S_IS_DEFINED (as_sym))) | |
9faec336 ILT |
3832 | st = st_Global; |
3833 | else if (seg == text_section) | |
3834 | st = st_Label; | |
3835 | else | |
3836 | st = st_Static; | |
3837 | ||
3838 | if (! S_IS_DEFINED (as_sym) | |
3839 | || as_sym->ecoff_undefined) | |
3840 | { | |
3841 | if (S_GET_VALUE (as_sym) > 0 | |
3842 | && (S_GET_VALUE (as_sym) | |
3843 | <= bfd_get_gp_size (stdoutput))) | |
3844 | sc = sc_SUndefined; | |
3845 | else | |
3846 | sc = sc_Undefined; | |
3847 | } | |
3848 | else if (S_IS_COMMON (as_sym)) | |
3849 | { | |
3850 | if (S_GET_VALUE (as_sym) > 0 | |
3851 | && (S_GET_VALUE (as_sym) | |
3852 | <= bfd_get_gp_size (stdoutput))) | |
3853 | sc = sc_SCommon; | |
3854 | else | |
3855 | sc = sc_Common; | |
3856 | } | |
3857 | else if (seg == text_section) | |
3858 | sc = sc_Text; | |
3859 | else if (seg == data_section) | |
3860 | sc = sc_Data; | |
3861 | else if (strcmp (segname, ".rdata") == 0 | |
3862 | || strcmp (segname, ".rodata") == 0) | |
3863 | sc = sc_RData; | |
3864 | else if (strcmp (segname, ".sdata") == 0) | |
3865 | sc = sc_SData; | |
3866 | else if (seg == bss_section) | |
3867 | sc = sc_Bss; | |
3868 | else if (strcmp (segname, ".sbss") == 0) | |
3869 | sc = sc_SBss; | |
3870 | else if (seg == &bfd_abs_section) | |
3871 | sc = sc_Abs; | |
3872 | else | |
3873 | abort (); | |
3874 | ||
3875 | sym_ptr->ecoff_sym.asym.st = (int) st; | |
3876 | sym_ptr->ecoff_sym.asym.sc = (int) sc; | |
3877 | } | |
3878 | ||
3879 | /* This is just an external symbol if it is | |
3880 | outside a procedure and it has a type. | |
3881 | FIXME: g++ will generate symbols which have | |
3882 | different names in the debugging information | |
3883 | than the actual symbol. Should we handle | |
3884 | them here? */ | |
3885 | if ((S_IS_EXTERNAL (as_sym) | |
3886 | || ! S_IS_DEFINED (as_sym)) | |
3887 | && sym_ptr->proc_ptr == (proc_t *) NULL | |
3888 | && sym_ptr->ecoff_sym.asym.st != (int) st_Nil | |
3889 | && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) | |
3890 | local = 0; | |
3891 | ||
3892 | /* If an st_end symbol has an associated gas | |
3893 | symbol, then it is a local label created for | |
3894 | a .bend or .end directive. Stabs line | |
3895 | numbers will have \001 in the names. */ | |
3896 | if (local | |
3897 | && sym_ptr->ecoff_sym.asym.st != st_End | |
3898 | && strchr (sym_ptr->name, '\001') == 0) | |
3899 | sym_ptr->ecoff_sym.asym.iss = | |
3900 | add_string (&fil_ptr->strings, | |
3901 | fil_ptr->str_hash, | |
3902 | sym_ptr->name, | |
3903 | (shash_t **) NULL); | |
3904 | } | |
3905 | ||
3906 | /* We now know the index of this symbol; fill in | |
3907 | locations that have been waiting for that | |
3908 | information. */ | |
3909 | if (sym_ptr->begin_ptr != (localsym_t *) NULL) | |
3910 | { | |
3911 | localsym_t *begin_ptr; | |
3912 | st_t begin_type; | |
3913 | ||
3914 | know (local); | |
3915 | begin_ptr = sym_ptr->begin_ptr; | |
3916 | know (begin_ptr->sym_index != -1); | |
3917 | sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; | |
3918 | if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) | |
3919 | sym_ptr->ecoff_sym.asym.iss = | |
3920 | begin_ptr->ecoff_sym.asym.iss; | |
3921 | ||
3922 | begin_type = begin_ptr->ecoff_sym.asym.st; | |
3923 | if (begin_type == st_File | |
3924 | || begin_type == st_Block) | |
3925 | { | |
3926 | begin_ptr->ecoff_sym.asym.index = | |
3927 | isym - ifilesym + 1; | |
3928 | (*swap_sym_out) (stdoutput, | |
3929 | &begin_ptr->ecoff_sym.asym, | |
3930 | (*buf | |
3931 | + offset | |
3932 | + (begin_ptr->sym_index | |
3933 | * external_sym_size))); | |
3934 | } | |
3935 | else | |
3936 | { | |
3937 | know (begin_ptr->index_ptr != (aux_t *) NULL); | |
3938 | begin_ptr->index_ptr->data.isym = | |
3939 | isym - ifilesym + 1; | |
3940 | } | |
3941 | ||
3942 | /* The value of the symbol marking the end of a | |
3943 | procedure is the size of the procedure. The | |
3944 | value of the symbol marking the end of a | |
3945 | block is the offset from the start of the | |
3946 | procedure to the block. */ | |
3947 | if (begin_type == st_Proc | |
3948 | || begin_type == st_StaticProc) | |
3949 | { | |
3950 | know (as_sym != (symbolS *) NULL); | |
3951 | know (begin_ptr->as_sym != (symbolS *) NULL); | |
3952 | if (S_GET_SEGMENT (as_sym) | |
3953 | != S_GET_SEGMENT (begin_ptr->as_sym)) | |
3954 | as_warn (".begin/.bend in different segments"); | |
3955 | sym_ptr->ecoff_sym.asym.value = | |
3956 | (S_GET_VALUE (as_sym) | |
3957 | - S_GET_VALUE (begin_ptr->as_sym)); | |
3958 | } | |
3959 | else if (begin_type == st_Block | |
3960 | && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) | |
3961 | { | |
3962 | symbolS *begin_sym; | |
3963 | ||
3964 | know (as_sym != (symbolS *) NULL); | |
3965 | know (sym_ptr->proc_ptr != (proc_t *) NULL); | |
3966 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; | |
3967 | if (S_GET_SEGMENT (as_sym) | |
3968 | != S_GET_SEGMENT (begin_sym)) | |
3969 | as_warn (".begin/.bend in different segments"); | |
3970 | sym_ptr->ecoff_sym.asym.value = | |
3971 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); | |
3972 | } | |
3973 | } | |
3974 | ||
3975 | for (f = sym_ptr->forward_ref; | |
3976 | f != (forward_t *) NULL; | |
3977 | f = f->next) | |
3978 | { | |
3979 | know (local); | |
3980 | f->ifd_ptr->data.isym = fil_ptr->file_index; | |
3981 | f->index_ptr->data.rndx.index = isym - ifilesym; | |
3982 | } | |
3983 | ||
3984 | if (local) | |
3985 | { | |
3986 | if (*bufend - sym_out < external_sym_size) | |
3987 | sym_out = ecoff_add_bytes (buf, bufend, | |
3988 | sym_out, | |
3989 | external_sym_size); | |
3990 | (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, | |
3991 | sym_out); | |
3992 | sym_out += external_sym_size; | |
3993 | ||
3994 | sym_ptr->sym_index = isym; | |
3995 | ||
3996 | if (sym_ptr->proc_ptr != (proc_t *) NULL | |
3997 | && sym_ptr->proc_ptr->sym == sym_ptr) | |
3998 | sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; | |
3999 | ||
4000 | ++isym; | |
4001 | } | |
4002 | ||
4003 | /* Record the local symbol index and file number in | |
4004 | case this is an external symbol. Note that this | |
4005 | destroys the asym.index field. */ | |
012353f7 KR |
4006 | if (as_sym != (symbolS *) NULL |
4007 | && as_sym->ecoff_symbol == sym_ptr) | |
9faec336 ILT |
4008 | { |
4009 | if (sym_ptr->ecoff_sym.asym.st == st_Proc | |
4010 | || sym_ptr->ecoff_sym.asym.st == st_StaticProc) | |
4011 | { | |
4012 | know (local); | |
4013 | sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; | |
4014 | } | |
4015 | sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; | |
4016 | } | |
4017 | } | |
4018 | } | |
4019 | fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; | |
4020 | } | |
4021 | } | |
4022 | ||
4023 | return offset + isym * external_sym_size; | |
4024 | } | |
4025 | ||
4026 | /* Swap out the procedure information. */ | |
4027 | ||
4028 | static unsigned long | |
4029 | ecoff_build_procs (backend, buf, bufend, offset) | |
4030 | const struct ecoff_debug_swap *backend; | |
4031 | char **buf; | |
4032 | char **bufend; | |
4033 | unsigned long offset; | |
4034 | { | |
4035 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
4036 | void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR)) | |
4037 | = backend->swap_pdr_out; | |
4038 | char *pdr_out; | |
4039 | int first_fil; | |
4040 | long iproc; | |
4041 | vlinks_t *file_link; | |
4042 | ||
4043 | pdr_out = *buf + offset; | |
012353f7 | 4044 | |
9faec336 ILT |
4045 | first_fil = 1; |
4046 | iproc = 0; | |
4047 | ||
4048 | /* The procedures are stored by file. */ | |
4049 | for (file_link = file_desc.first; | |
4050 | file_link != (vlinks_t *) NULL; | |
4051 | file_link = file_link->next) | |
4052 | { | |
4053 | int fil_cnt; | |
4054 | efdr_t *fil_ptr; | |
4055 | efdr_t *fil_end; | |
4056 | ||
4057 | if (file_link->next == (vlinks_t *) NULL) | |
4058 | fil_cnt = file_desc.objects_last_page; | |
4059 | else | |
4060 | fil_cnt = file_desc.objects_per_page; | |
4061 | fil_ptr = file_link->datum->file; | |
4062 | fil_end = fil_ptr + fil_cnt; | |
4063 | for (; fil_ptr < fil_end; fil_ptr++) | |
4064 | { | |
4065 | vlinks_t *proc_link; | |
4066 | int first; | |
4067 | ||
4068 | fil_ptr->fdr.ipdFirst = iproc; | |
4069 | first = 1; | |
4070 | for (proc_link = fil_ptr->procs.first; | |
4071 | proc_link != (vlinks_t *) NULL; | |
4072 | proc_link = proc_link->next) | |
4073 | { | |
4074 | int prc_cnt; | |
4075 | proc_t *proc_ptr; | |
4076 | proc_t *proc_end; | |
4077 | ||
4078 | if (proc_link->next == (vlinks_t *) NULL) | |
4079 | prc_cnt = fil_ptr->procs.objects_last_page; | |
4080 | else | |
4081 | prc_cnt = fil_ptr->procs.objects_per_page; | |
4082 | proc_ptr = proc_link->datum->proc; | |
4083 | proc_end = proc_ptr + prc_cnt; | |
4084 | for (; proc_ptr < proc_end; proc_ptr++) | |
4085 | { | |
4086 | symbolS *adr_sym; | |
4087 | unsigned long adr; | |
4088 | ||
4089 | adr_sym = proc_ptr->sym->as_sym; | |
4090 | adr = (S_GET_VALUE (adr_sym) | |
4091 | + bfd_get_section_vma (stdoutput, | |
4092 | S_GET_SEGMENT (adr_sym))); | |
4093 | if (first) | |
4094 | { | |
4095 | if (first_fil) | |
4096 | first_fil = 0; | |
4097 | else | |
4098 | fil_ptr->fdr.adr = adr; | |
4099 | first = 0; | |
4100 | } | |
4101 | proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; | |
4102 | if (*bufend - pdr_out < external_pdr_size) | |
4103 | pdr_out = ecoff_add_bytes (buf, bufend, | |
4104 | pdr_out, | |
4105 | external_pdr_size); | |
4106 | (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); | |
4107 | pdr_out += external_pdr_size; | |
4108 | ++iproc; | |
4109 | } | |
4110 | } | |
4111 | fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; | |
4112 | } | |
4113 | } | |
4114 | ||
4115 | return offset + iproc * external_pdr_size; | |
4116 | } | |
4117 | ||
4118 | /* Swap out the aux information. */ | |
4119 | ||
4120 | static unsigned long | |
4121 | ecoff_build_aux (backend, buf, bufend, offset) | |
4122 | const struct ecoff_debug_swap *backend; | |
4123 | char **buf; | |
4124 | char **bufend; | |
4125 | unsigned long offset; | |
4126 | { | |
4127 | int bigendian; | |
4128 | union aux_ext *aux_out; | |
4129 | long iaux; | |
4130 | vlinks_t *file_link; | |
4131 | ||
4132 | bigendian = stdoutput->xvec->header_byteorder_big_p; | |
4133 | ||
4134 | aux_out = (union aux_ext *) (*buf + offset); | |
012353f7 | 4135 | |
9faec336 ILT |
4136 | iaux = 0; |
4137 | ||
4138 | /* The aux entries are stored by file. */ | |
4139 | for (file_link = file_desc.first; | |
4140 | file_link != (vlinks_t *) NULL; | |
4141 | file_link = file_link->next) | |
4142 | { | |
4143 | int fil_cnt; | |
4144 | efdr_t *fil_ptr; | |
4145 | efdr_t *fil_end; | |
4146 | ||
4147 | if (file_link->next == (vlinks_t *) NULL) | |
4148 | fil_cnt = file_desc.objects_last_page; | |
4149 | else | |
4150 | fil_cnt = file_desc.objects_per_page; | |
4151 | fil_ptr = file_link->datum->file; | |
4152 | fil_end = fil_ptr + fil_cnt; | |
4153 | for (; fil_ptr < fil_end; fil_ptr++) | |
4154 | { | |
4155 | vlinks_t *aux_link; | |
4156 | ||
4157 | fil_ptr->fdr.fBigendian = bigendian; | |
4158 | fil_ptr->fdr.iauxBase = iaux; | |
4159 | for (aux_link = fil_ptr->aux_syms.first; | |
4160 | aux_link != (vlinks_t *) NULL; | |
4161 | aux_link = aux_link->next) | |
4162 | { | |
4163 | int aux_cnt; | |
4164 | aux_t *aux_ptr; | |
4165 | aux_t *aux_end; | |
4166 | ||
4167 | if (aux_link->next == (vlinks_t *) NULL) | |
4168 | aux_cnt = fil_ptr->aux_syms.objects_last_page; | |
4169 | else | |
4170 | aux_cnt = fil_ptr->aux_syms.objects_per_page; | |
4171 | aux_ptr = aux_link->datum->aux; | |
4172 | aux_end = aux_ptr + aux_cnt; | |
4173 | for (; aux_ptr < aux_end; aux_ptr++) | |
4174 | { | |
4175 | if (*bufend - (char *) aux_out < sizeof (union aux_ext)) | |
4176 | aux_out = ((union aux_ext *) | |
4177 | ecoff_add_bytes (buf, bufend, | |
4178 | (char *) aux_out, | |
4179 | sizeof (union aux_ext))); | |
4180 | switch (aux_ptr->type) | |
4181 | { | |
4182 | case aux_tir: | |
4183 | ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti, | |
4184 | &aux_out->a_ti); | |
4185 | break; | |
4186 | case aux_rndx: | |
4187 | ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx, | |
4188 | &aux_out->a_rndx); | |
4189 | break; | |
4190 | case aux_dnLow: | |
4191 | AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, | |
4192 | aux_out); | |
4193 | break; | |
4194 | case aux_dnHigh: | |
4195 | AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, | |
4196 | aux_out); | |
4197 | break; | |
4198 | case aux_isym: | |
4199 | AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, | |
4200 | aux_out); | |
4201 | break; | |
4202 | case aux_iss: | |
4203 | AUX_PUT_ISS (bigendian, aux_ptr->data.iss, | |
4204 | aux_out); | |
4205 | break; | |
4206 | case aux_width: | |
4207 | AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, | |
4208 | aux_out); | |
4209 | break; | |
4210 | case aux_count: | |
4211 | AUX_PUT_COUNT (bigendian, aux_ptr->data.count, | |
4212 | aux_out); | |
4213 | break; | |
4214 | } | |
4215 | ||
4216 | ++aux_out; | |
4217 | ++iaux; | |
4218 | } | |
4219 | } | |
4220 | fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; | |
4221 | } | |
4222 | } | |
4223 | ||
4224 | return ecoff_padding_adjust (backend, buf, bufend, | |
4225 | offset + iaux * sizeof (union aux_ext), | |
4226 | (char **) NULL); | |
4227 | } | |
4228 | ||
4229 | /* Copy out the strings from a varray_t. This returns the number of | |
4230 | bytes copied, rather than the new offset. */ | |
4231 | ||
4232 | static unsigned long | |
4233 | ecoff_build_strings (buf, bufend, offset, vp) | |
4234 | char **buf; | |
4235 | char **bufend; | |
4236 | unsigned long offset; | |
4237 | varray_t *vp; | |
4238 | { | |
4239 | unsigned long istr; | |
4240 | char *str_out; | |
4241 | vlinks_t *str_link; | |
4242 | ||
4243 | str_out = *buf + offset; | |
4244 | ||
4245 | istr = 0; | |
4246 | ||
4247 | for (str_link = vp->first; | |
4248 | str_link != (vlinks_t *) NULL; | |
4249 | str_link = str_link->next) | |
4250 | { | |
4251 | unsigned long str_cnt; | |
4252 | ||
4253 | if (str_link->next == (vlinks_t *) NULL) | |
4254 | str_cnt = vp->objects_last_page; | |
4255 | else | |
4256 | str_cnt = vp->objects_per_page; | |
4257 | ||
4258 | if (*bufend - str_out < str_cnt) | |
4259 | str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); | |
4260 | ||
4261 | memcpy (str_out, str_link->datum->byte, str_cnt); | |
4262 | str_out += str_cnt; | |
4263 | istr += str_cnt; | |
4264 | } | |
4265 | ||
4266 | return istr; | |
4267 | } | |
4268 | ||
4269 | /* Dump out the local strings. */ | |
4270 | ||
4271 | static unsigned long | |
4272 | ecoff_build_ss (backend, buf, bufend, offset) | |
4273 | const struct ecoff_debug_swap *backend; | |
4274 | char **buf; | |
4275 | char **bufend; | |
4276 | unsigned long offset; | |
4277 | { | |
4278 | long iss; | |
4279 | vlinks_t *file_link; | |
4280 | ||
4281 | iss = 0; | |
4282 | ||
4283 | for (file_link = file_desc.first; | |
4284 | file_link != (vlinks_t *) NULL; | |
4285 | file_link = file_link->next) | |
4286 | { | |
4287 | int fil_cnt; | |
4288 | efdr_t *fil_ptr; | |
4289 | efdr_t *fil_end; | |
4290 | ||
4291 | if (file_link->next == (vlinks_t *) NULL) | |
4292 | fil_cnt = file_desc.objects_last_page; | |
4293 | else | |
4294 | fil_cnt = file_desc.objects_per_page; | |
4295 | fil_ptr = file_link->datum->file; | |
4296 | fil_end = fil_ptr + fil_cnt; | |
4297 | for (; fil_ptr < fil_end; fil_ptr++) | |
4298 | { | |
4299 | long ss_cnt; | |
4300 | ||
4301 | fil_ptr->fdr.issBase = iss; | |
4302 | ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, | |
4303 | &fil_ptr->strings); | |
4304 | fil_ptr->fdr.cbSs = ss_cnt; | |
4305 | iss += ss_cnt; | |
4306 | } | |
4307 | } | |
4308 | ||
4309 | return ecoff_padding_adjust (backend, buf, bufend, offset + iss, | |
4310 | (char **) NULL); | |
4311 | } | |
4312 | ||
4313 | /* Swap out the file descriptors. */ | |
4314 | ||
4315 | static unsigned long | |
4316 | ecoff_build_fdr (backend, buf, bufend, offset) | |
4317 | const struct ecoff_debug_swap *backend; | |
4318 | char **buf; | |
4319 | char **bufend; | |
4320 | unsigned long offset; | |
4321 | { | |
4322 | const bfd_size_type external_fdr_size = backend->external_fdr_size; | |
4323 | void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR)) | |
4324 | = backend->swap_fdr_out; | |
4325 | long ifile; | |
4326 | char *fdr_out; | |
4327 | vlinks_t *file_link; | |
4328 | ||
4329 | ifile = 0; | |
4330 | ||
4331 | fdr_out = *buf + offset; | |
4332 | ||
4333 | for (file_link = file_desc.first; | |
4334 | file_link != (vlinks_t *) NULL; | |
4335 | file_link = file_link->next) | |
4336 | { | |
4337 | int fil_cnt; | |
4338 | efdr_t *fil_ptr; | |
4339 | efdr_t *fil_end; | |
4340 | ||
4341 | if (file_link->next == (vlinks_t *) NULL) | |
4342 | fil_cnt = file_desc.objects_last_page; | |
4343 | else | |
4344 | fil_cnt = file_desc.objects_per_page; | |
4345 | fil_ptr = file_link->datum->file; | |
4346 | fil_end = fil_ptr + fil_cnt; | |
4347 | for (; fil_ptr < fil_end; fil_ptr++) | |
4348 | { | |
4349 | if (*bufend - fdr_out < external_fdr_size) | |
4350 | fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, | |
4351 | external_fdr_size); | |
4352 | (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); | |
4353 | fdr_out += external_fdr_size; | |
4354 | ++ifile; | |
4355 | } | |
4356 | } | |
4357 | ||
4358 | return offset + ifile * external_fdr_size; | |
4359 | } | |
4360 | ||
012353f7 KR |
4361 | /* Set up the external symbols. These are supposed to be handled by |
4362 | the backend. This routine just gets the right information and | |
4363 | calls a backend function to deal with it. */ | |
9faec336 | 4364 | |
012353f7 KR |
4365 | static void |
4366 | ecoff_setup_ext () | |
9faec336 | 4367 | { |
9faec336 | 4368 | register symbolS *sym; |
9faec336 | 4369 | |
9faec336 ILT |
4370 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) |
4371 | { | |
4372 | if (sym->ecoff_symbol == NULL) | |
4373 | continue; | |
4374 | ||
4375 | /* If this is a local symbol, then force the fields to zero. */ | |
4376 | if (! S_IS_EXTERNAL (sym) | |
4377 | && S_IS_DEFINED (sym)) | |
4378 | { | |
4379 | sym->ecoff_symbol->ecoff_sym.asym.value = 0; | |
4380 | sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil; | |
4381 | sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil; | |
4382 | sym->ecoff_symbol->ecoff_sym.asym.index = indexNil; | |
4383 | } | |
4384 | ||
012353f7 | 4385 | obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym); |
9faec336 | 4386 | } |
9faec336 ILT |
4387 | } |
4388 | ||
4389 | /* Build the ECOFF dbeugging information. */ | |
4390 | ||
4391 | unsigned long | |
4392 | ecoff_build_debug (hdr, bufp, backend) | |
4393 | HDRR *hdr; | |
4394 | char **bufp; | |
4395 | const struct ecoff_debug_swap *backend; | |
4396 | { | |
4397 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
4398 | tag_t *ptag; | |
4399 | tag_t *ptag_next; | |
4400 | efdr_t *fil_ptr; | |
4401 | int end_warning; | |
4402 | efdr_t *hold_file_ptr; | |
4403 | proc_t * hold_proc_ptr; | |
4404 | symbolS *sym; | |
4405 | char *buf; | |
4406 | char *bufend; | |
4407 | unsigned long offset; | |
9faec336 ILT |
4408 | |
4409 | /* Make sure we have a file. */ | |
4410 | if (first_file == (efdr_t *) NULL) | |
4411 | add_file ((const char *) NULL, 0); | |
4412 | ||
4413 | /* Handle any top level tags. */ | |
4414 | for (ptag = top_tag_head->first_tag; | |
4415 | ptag != (tag_t *) NULL; | |
4416 | ptag = ptag_next) | |
4417 | { | |
4418 | if (ptag->forward_ref != (forward_t *) NULL) | |
4419 | add_unknown_tag (ptag); | |
4420 | ||
4421 | ptag_next = ptag->same_block; | |
4422 | ptag->hash_ptr->tag_ptr = ptag->same_name; | |
4423 | free_tag (ptag); | |
4424 | } | |
4425 | ||
4426 | free_thead (top_tag_head); | |
4427 | ||
4428 | /* Look through the symbols. Add debugging information for each | |
4429 | symbol that has not already received it. */ | |
4430 | hold_file_ptr = cur_file_ptr; | |
4431 | hold_proc_ptr = cur_proc_ptr; | |
4432 | cur_proc_ptr = (proc_t *) NULL; | |
4433 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) | |
4434 | { | |
4435 | if (sym->ecoff_symbol != NULL | |
4436 | || sym->ecoff_file == (efdr_t *) NULL | |
4437 | || (sym->bsym->flags & BSF_SECTION_SYM) != 0) | |
4438 | continue; | |
4439 | ||
4440 | cur_file_ptr = sym->ecoff_file; | |
4441 | add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, | |
4442 | S_GET_VALUE (sym), indexNil); | |
4443 | } | |
4444 | cur_proc_ptr = hold_proc_ptr; | |
4445 | cur_file_ptr = hold_file_ptr; | |
4446 | ||
4447 | /* Output an ending symbol for all the files. We have to do this | |
4448 | here for the last file, so we may as well do it for all of the | |
4449 | files. */ | |
4450 | end_warning = 0; | |
4451 | for (fil_ptr = first_file; | |
4452 | fil_ptr != (efdr_t *) NULL; | |
4453 | fil_ptr = fil_ptr->next_file) | |
4454 | { | |
4455 | cur_file_ptr = fil_ptr; | |
4456 | while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL) | |
4457 | { | |
4458 | cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; | |
4459 | if (! end_warning) | |
4460 | { | |
4461 | as_warn ("Missing .end or .bend at end of file"); | |
4462 | end_warning = 1; | |
4463 | } | |
4464 | } | |
4465 | (void) add_ecoff_symbol ((const char *) NULL, | |
4466 | st_End, sc_Text, | |
4467 | (symbolS *) NULL, | |
4468 | (symint_t) 0, | |
4469 | (symint_t) 0); | |
4470 | } | |
4471 | ||
4472 | /* Build the symbolic information. */ | |
4473 | offset = 0; | |
4474 | buf = xmalloc (PAGE_SIZE); | |
4475 | bufend = buf + PAGE_SIZE; | |
4476 | ||
4477 | /* Build the line number information. */ | |
4478 | hdr->cbLineOffset = offset; | |
4479 | offset = ecoff_build_lineno (backend, &buf, &bufend, offset, | |
4480 | &hdr->ilineMax); | |
4481 | hdr->cbLine = offset - hdr->cbLineOffset; | |
4482 | ||
4483 | /* We don't use dense numbers at all. */ | |
4484 | hdr->idnMax = 0; | |
4485 | hdr->cbDnOffset = 0; | |
4486 | ||
4487 | /* We can't build the PDR table until we have built the symbols, | |
4488 | because a PDR contains a symbol index. However, we set aside | |
4489 | space at this point. */ | |
4490 | hdr->ipdMax = proc_cnt; | |
4491 | hdr->cbPdOffset = offset; | |
4492 | if (bufend - (buf + offset) < proc_cnt * external_pdr_size) | |
4493 | (void) ecoff_add_bytes (&buf, &bufend, buf + offset, | |
4494 | proc_cnt * external_pdr_size); | |
4495 | offset += proc_cnt * external_pdr_size; | |
4496 | ||
4497 | /* Build the local symbols. */ | |
4498 | hdr->cbSymOffset = offset; | |
4499 | offset = ecoff_build_symbols (backend, &buf, &bufend, offset); | |
4500 | hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; | |
4501 | ||
4502 | /* Building the symbols initializes the symbol index in the PDR's. | |
4503 | Now we can swap out the PDR's. */ | |
4504 | (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); | |
4505 | ||
4506 | /* We don't use optimization symbols. */ | |
4507 | hdr->ioptMax = 0; | |
4508 | hdr->cbOptOffset = 0; | |
4509 | ||
4510 | /* Swap out the auxiliary type information. */ | |
4511 | hdr->cbAuxOffset = offset; | |
4512 | offset = ecoff_build_aux (backend, &buf, &bufend, offset); | |
4513 | hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); | |
4514 | ||
4515 | /* Copy out the local strings. */ | |
4516 | hdr->cbSsOffset = offset; | |
4517 | offset = ecoff_build_ss (backend, &buf, &bufend, offset); | |
4518 | hdr->issMax = offset - hdr->cbSsOffset; | |
4519 | ||
9faec336 ILT |
4520 | /* We don't use relative file descriptors. */ |
4521 | hdr->crfd = 0; | |
4522 | hdr->cbRfdOffset = 0; | |
4523 | ||
4524 | /* Swap out the file descriptors. */ | |
4525 | hdr->cbFdOffset = offset; | |
4526 | offset = ecoff_build_fdr (backend, &buf, &bufend, offset); | |
4527 | hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; | |
4528 | ||
012353f7 KR |
4529 | /* Set up the external symbols, which are handled by the BFD back |
4530 | end. */ | |
4531 | hdr->issExtMax = 0; | |
4532 | hdr->cbSsExtOffset = 0; | |
4533 | hdr->iextMax = 0; | |
4534 | hdr->cbExtOffset = 0; | |
4535 | ecoff_setup_ext (); | |
9faec336 ILT |
4536 | |
4537 | know ((offset & (backend->debug_align - 1)) == 0); | |
4538 | ||
4539 | hdr->magic = backend->sym_magic; | |
4540 | /* FIXME: what should hdr->vstamp be? */ | |
4541 | hdr->vstamp = 0x020b; | |
4542 | ||
4543 | *bufp = buf; | |
4544 | return offset; | |
4545 | } | |
4546 | \f | |
4547 | /* Allocate a cluster of pages. */ | |
4548 | ||
4549 | #ifndef MALLOC_CHECK | |
4550 | ||
4551 | static page_t * | |
4552 | allocate_cluster (npages) | |
4553 | unsigned long npages; | |
4554 | { | |
4555 | register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE); | |
4556 | ||
4557 | #ifdef ECOFF_DEBUG | |
4558 | if (debug > 3) | |
4559 | fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); | |
4560 | #endif | |
4561 | ||
4562 | memset (value, 0, npages * PAGE_USIZE); | |
4563 | ||
4564 | return value; | |
4565 | } | |
4566 | ||
4567 | ||
4568 | static page_t *cluster_ptr = NULL; | |
4569 | static unsigned long pages_left = 0; | |
4570 | ||
4571 | #endif /* MALLOC_CHECK */ | |
4572 | ||
4573 | /* Allocate one page (which is initialized to 0). */ | |
4574 | ||
4575 | static page_t * | |
4576 | allocate_page () | |
4577 | { | |
4578 | #ifndef MALLOC_CHECK | |
4579 | ||
4580 | if (pages_left == 0) | |
4581 | { | |
4582 | pages_left = MAX_CLUSTER_PAGES; | |
4583 | cluster_ptr = allocate_cluster (pages_left); | |
4584 | } | |
4585 | ||
4586 | pages_left--; | |
4587 | return cluster_ptr++; | |
4588 | ||
4589 | #else /* MALLOC_CHECK */ | |
4590 | ||
4591 | page_t *ptr; | |
4592 | ||
4593 | ptr = xmalloc (PAGE_USIZE); | |
4594 | memset (ptr, 0, PAGE_USIZE); | |
4595 | return ptr; | |
4596 | ||
4597 | #endif /* MALLOC_CHECK */ | |
4598 | } | |
4599 | \f | |
4600 | /* Allocate scoping information. */ | |
4601 | ||
4602 | static scope_t * | |
4603 | allocate_scope () | |
4604 | { | |
4605 | register scope_t *ptr; | |
4606 | static scope_t initial_scope; | |
4607 | ||
4608 | #ifndef MALLOC_CHECK | |
4609 | ||
4610 | ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope; | |
4611 | if (ptr != (scope_t *) NULL) | |
4612 | alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free; | |
4613 | else | |
4614 | { | |
4615 | register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated; | |
4616 | register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page; | |
4617 | ||
4618 | if (unallocated == 0) | |
4619 | { | |
4620 | unallocated = PAGE_SIZE / sizeof (scope_t); | |
4621 | alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page (); | |
4622 | alloc_counts[(int)alloc_type_scope].total_pages++; | |
4623 | } | |
4624 | ||
4625 | ptr = &cur_page->scope[--unallocated]; | |
4626 | alloc_counts[(int)alloc_type_scope].unallocated = unallocated; | |
4627 | } | |
4628 | ||
4629 | #else | |
4630 | ||
4631 | ptr = (scope_t *) xmalloc (sizeof (scope_t)); | |
4632 | ||
4633 | #endif | |
4634 | ||
4635 | alloc_counts[(int)alloc_type_scope].total_alloc++; | |
4636 | *ptr = initial_scope; | |
4637 | return ptr; | |
4638 | } | |
4639 | ||
4640 | /* Free scoping information. */ | |
4641 | ||
4642 | static void | |
4643 | free_scope (ptr) | |
4644 | scope_t *ptr; | |
4645 | { | |
4646 | alloc_counts[(int)alloc_type_scope].total_free++; | |
4647 | ||
4648 | #ifndef MALLOC_CHECK | |
4649 | ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope; | |
4650 | alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr; | |
4651 | #else | |
4652 | free ((PTR) ptr); | |
4653 | #endif | |
4654 | } | |
4655 | \f | |
4656 | /* Allocate links for pages in a virtual array. */ | |
4657 | ||
4658 | static vlinks_t * | |
4659 | allocate_vlinks () | |
4660 | { | |
4661 | register vlinks_t *ptr; | |
4662 | static vlinks_t initial_vlinks; | |
4663 | ||
4664 | #ifndef MALLOC_CHECK | |
4665 | ||
4666 | register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated; | |
4667 | register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page; | |
4668 | ||
4669 | if (unallocated == 0) | |
4670 | { | |
4671 | unallocated = PAGE_SIZE / sizeof (vlinks_t); | |
4672 | alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page (); | |
4673 | alloc_counts[(int)alloc_type_vlinks].total_pages++; | |
4674 | } | |
4675 | ||
4676 | ptr = &cur_page->vlinks[--unallocated]; | |
4677 | alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated; | |
4678 | ||
4679 | #else | |
4680 | ||
4681 | ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t)); | |
4682 | ||
4683 | #endif | |
4684 | ||
4685 | alloc_counts[(int)alloc_type_vlinks].total_alloc++; | |
4686 | *ptr = initial_vlinks; | |
4687 | return ptr; | |
4688 | } | |
4689 | \f | |
4690 | /* Allocate string hash buckets. */ | |
4691 | ||
4692 | static shash_t * | |
4693 | allocate_shash () | |
4694 | { | |
4695 | register shash_t *ptr; | |
4696 | static shash_t initial_shash; | |
4697 | ||
4698 | #ifndef MALLOC_CHECK | |
4699 | ||
4700 | register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated; | |
4701 | register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page; | |
4702 | ||
4703 | if (unallocated == 0) | |
4704 | { | |
4705 | unallocated = PAGE_SIZE / sizeof (shash_t); | |
4706 | alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page (); | |
4707 | alloc_counts[(int)alloc_type_shash].total_pages++; | |
4708 | } | |
4709 | ||
4710 | ptr = &cur_page->shash[--unallocated]; | |
4711 | alloc_counts[(int)alloc_type_shash].unallocated = unallocated; | |
4712 | ||
4713 | #else | |
4714 | ||
4715 | ptr = (shash_t *) xmalloc (sizeof (shash_t)); | |
4716 | ||
4717 | #endif | |
4718 | ||
4719 | alloc_counts[(int)alloc_type_shash].total_alloc++; | |
4720 | *ptr = initial_shash; | |
4721 | return ptr; | |
4722 | } | |
4723 | \f | |
4724 | /* Allocate type hash buckets. */ | |
4725 | ||
4726 | static thash_t * | |
4727 | allocate_thash () | |
4728 | { | |
4729 | register thash_t *ptr; | |
4730 | static thash_t initial_thash; | |
4731 | ||
4732 | #ifndef MALLOC_CHECK | |
4733 | ||
4734 | register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated; | |
4735 | register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page; | |
4736 | ||
4737 | if (unallocated == 0) | |
4738 | { | |
4739 | unallocated = PAGE_SIZE / sizeof (thash_t); | |
4740 | alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page (); | |
4741 | alloc_counts[(int)alloc_type_thash].total_pages++; | |
4742 | } | |
4743 | ||
4744 | ptr = &cur_page->thash[--unallocated]; | |
4745 | alloc_counts[(int)alloc_type_thash].unallocated = unallocated; | |
4746 | ||
4747 | #else | |
4748 | ||
4749 | ptr = (thash_t *) xmalloc (sizeof (thash_t)); | |
4750 | ||
4751 | #endif | |
4752 | ||
4753 | alloc_counts[(int)alloc_type_thash].total_alloc++; | |
4754 | *ptr = initial_thash; | |
4755 | return ptr; | |
4756 | } | |
4757 | \f | |
4758 | /* Allocate structure, union, or enum tag information. */ | |
4759 | ||
4760 | static tag_t * | |
4761 | allocate_tag () | |
4762 | { | |
4763 | register tag_t *ptr; | |
4764 | static tag_t initial_tag; | |
4765 | ||
4766 | #ifndef MALLOC_CHECK | |
4767 | ||
4768 | ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag; | |
4769 | if (ptr != (tag_t *) NULL) | |
4770 | alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free; | |
4771 | else | |
4772 | { | |
4773 | register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated; | |
4774 | register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page; | |
4775 | ||
4776 | if (unallocated == 0) | |
4777 | { | |
4778 | unallocated = PAGE_SIZE / sizeof (tag_t); | |
4779 | alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page (); | |
4780 | alloc_counts[(int)alloc_type_tag].total_pages++; | |
4781 | } | |
4782 | ||
4783 | ptr = &cur_page->tag[--unallocated]; | |
4784 | alloc_counts[(int)alloc_type_tag].unallocated = unallocated; | |
4785 | } | |
4786 | ||
4787 | #else | |
4788 | ||
4789 | ptr = (tag_t *) xmalloc (sizeof (tag_t)); | |
4790 | ||
4791 | #endif | |
4792 | ||
4793 | alloc_counts[(int)alloc_type_tag].total_alloc++; | |
4794 | *ptr = initial_tag; | |
4795 | return ptr; | |
4796 | } | |
4797 | ||
4798 | /* Free scoping information. */ | |
4799 | ||
4800 | static void | |
4801 | free_tag (ptr) | |
4802 | tag_t *ptr; | |
4803 | { | |
4804 | alloc_counts[(int)alloc_type_tag].total_free++; | |
4805 | ||
4806 | #ifndef MALLOC_CHECK | |
4807 | ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag; | |
4808 | alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr; | |
4809 | #else | |
4810 | free ((PTR_T) ptr); | |
4811 | #endif | |
4812 | } | |
4813 | \f | |
4814 | /* Allocate forward reference to a yet unknown tag. */ | |
4815 | ||
4816 | static forward_t * | |
4817 | allocate_forward () | |
4818 | { | |
4819 | register forward_t *ptr; | |
4820 | static forward_t initial_forward; | |
4821 | ||
4822 | #ifndef MALLOC_CHECK | |
4823 | ||
4824 | register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated; | |
4825 | register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page; | |
4826 | ||
4827 | if (unallocated == 0) | |
4828 | { | |
4829 | unallocated = PAGE_SIZE / sizeof (forward_t); | |
4830 | alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page (); | |
4831 | alloc_counts[(int)alloc_type_forward].total_pages++; | |
4832 | } | |
4833 | ||
4834 | ptr = &cur_page->forward[--unallocated]; | |
4835 | alloc_counts[(int)alloc_type_forward].unallocated = unallocated; | |
4836 | ||
4837 | #else | |
4838 | ||
4839 | ptr = (forward_t *) xmalloc (sizeof (forward_t)); | |
4840 | ||
4841 | #endif | |
4842 | ||
4843 | alloc_counts[(int)alloc_type_forward].total_alloc++; | |
4844 | *ptr = initial_forward; | |
4845 | return ptr; | |
4846 | } | |
4847 | \f | |
4848 | /* Allocate head of type hash list. */ | |
4849 | ||
4850 | static thead_t * | |
4851 | allocate_thead () | |
4852 | { | |
4853 | register thead_t *ptr; | |
4854 | static thead_t initial_thead; | |
4855 | ||
4856 | #ifndef MALLOC_CHECK | |
4857 | ||
4858 | ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead; | |
4859 | if (ptr != (thead_t *) NULL) | |
4860 | alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free; | |
4861 | else | |
4862 | { | |
4863 | register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated; | |
4864 | register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page; | |
4865 | ||
4866 | if (unallocated == 0) | |
4867 | { | |
4868 | unallocated = PAGE_SIZE / sizeof (thead_t); | |
4869 | alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page (); | |
4870 | alloc_counts[(int)alloc_type_thead].total_pages++; | |
4871 | } | |
4872 | ||
4873 | ptr = &cur_page->thead[--unallocated]; | |
4874 | alloc_counts[(int)alloc_type_thead].unallocated = unallocated; | |
4875 | } | |
4876 | ||
4877 | #else | |
4878 | ||
4879 | ptr = (thead_t *) xmalloc (sizeof (thead_t)); | |
4880 | ||
4881 | #endif | |
4882 | ||
4883 | alloc_counts[(int)alloc_type_thead].total_alloc++; | |
4884 | *ptr = initial_thead; | |
4885 | return ptr; | |
4886 | } | |
4887 | ||
4888 | /* Free scoping information. */ | |
4889 | ||
4890 | static void | |
4891 | free_thead (ptr) | |
4892 | thead_t *ptr; | |
4893 | { | |
4894 | alloc_counts[(int)alloc_type_thead].total_free++; | |
4895 | ||
4896 | #ifndef MALLOC_CHECK | |
4897 | ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead; | |
4898 | alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr; | |
4899 | #else | |
4900 | free ((PTR_T) ptr); | |
4901 | #endif | |
4902 | } | |
4903 | \f | |
4904 | static lineno_list_t * | |
4905 | allocate_lineno_list () | |
4906 | { | |
4907 | register lineno_list_t *ptr; | |
4908 | static lineno_list_t initial_lineno_list; | |
4909 | ||
4910 | #ifndef MALLOC_CHECK | |
4911 | ||
4912 | register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated; | |
4913 | register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page; | |
4914 | ||
4915 | if (unallocated == 0) | |
4916 | { | |
4917 | unallocated = PAGE_SIZE / sizeof (lineno_list_t); | |
4918 | alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page (); | |
4919 | alloc_counts[(int)alloc_type_lineno].total_pages++; | |
4920 | } | |
4921 | ||
4922 | ptr = &cur_page->lineno[--unallocated]; | |
4923 | alloc_counts[(int)alloc_type_lineno].unallocated = unallocated; | |
4924 | ||
4925 | #else | |
4926 | ||
4927 | ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t)); | |
4928 | ||
4929 | #endif | |
4930 | ||
4931 | alloc_counts[(int)alloc_type_lineno].total_alloc++; | |
4932 | *ptr = initial_lineno_list; | |
4933 | return ptr; | |
4934 | } | |
4935 | ||
17ed84ed | 4936 | void |
012353f7 KR |
4937 | ecoff_set_gp_prolog_size (sz) |
4938 | int sz; | |
4939 | { | |
4940 | if (cur_proc_ptr == 0) | |
4941 | abort (); | |
4942 | ||
4943 | cur_proc_ptr->pdr.gp_prologue = sz; | |
4944 | if (cur_proc_ptr->pdr.gp_prologue != sz) | |
4945 | { | |
4946 | as_warn ("GP prologue size exceeds field size, using 0 instead"); | |
4947 | cur_proc_ptr->pdr.gp_prologue = 0; | |
4948 | } | |
4949 | ||
4950 | cur_proc_ptr->pdr.gp_used = 1; | |
4951 | } | |
4952 | ||
9faec336 | 4953 | #endif /* ECOFF_DEBUGGING */ |