Commit | Line | Data |
---|---|---|
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 | |
d7b2038f | 22 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
9faec336 ILT |
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 | ||
9faec336 ILT |
781 | /* Linked list connecting separate page allocations. */ |
782 | typedef struct vlinks { | |
783 | struct vlinks *prev; /* previous set of pages */ | |
784 | struct vlinks *next; /* next set of pages */ | |
785 | union page *datum; /* start of page */ | |
786 | unsigned long start_index; /* starting index # of page */ | |
787 | } vlinks_t; | |
788 | ||
789 | ||
790 | /* Virtual array header. */ | |
791 | typedef struct varray { | |
792 | vlinks_t *first; /* first page link */ | |
793 | vlinks_t *last; /* last page link */ | |
794 | unsigned long num_allocated; /* # objects allocated */ | |
795 | unsigned short object_size; /* size in bytes of each object */ | |
796 | unsigned short objects_per_page; /* # objects that can fit on a page */ | |
797 | unsigned short objects_last_page; /* # objects allocated on last page */ | |
798 | } varray_t; | |
799 | ||
800 | #ifndef MALLOC_CHECK | |
801 | #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) | |
802 | #else | |
803 | #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) | |
804 | #endif | |
805 | ||
806 | #define INIT_VARRAY(type) { /* macro to initialize a varray */ \ | |
807 | (vlinks_t *)0, /* first */ \ | |
808 | (vlinks_t *)0, /* last */ \ | |
809 | 0, /* num_allocated */ \ | |
810 | sizeof (type), /* object_size */ \ | |
811 | OBJECTS_PER_PAGE (type), /* objects_per_page */ \ | |
812 | OBJECTS_PER_PAGE (type), /* objects_last_page */ \ | |
813 | } | |
814 | ||
815 | ||
816 | /* Master type for indexes within the symbol table. */ | |
817 | typedef unsigned long symint_t; | |
818 | ||
819 | ||
820 | /* Linked list support for nested scopes (file, block, structure, etc.). */ | |
821 | typedef struct scope { | |
822 | struct scope *prev; /* previous scope level */ | |
823 | struct scope *free; /* free list pointer */ | |
824 | struct localsym *lsym; /* pointer to local symbol node */ | |
825 | st_t type; /* type of the node */ | |
826 | } scope_t; | |
827 | ||
828 | ||
829 | /* For a local symbol we store a gas symbol as well as the debugging | |
830 | information we generate. The gas symbol will be NULL if this is | |
831 | only a debugging symbol. */ | |
832 | typedef struct localsym { | |
833 | const char *name; /* symbol name */ | |
834 | symbolS *as_sym; /* symbol as seen by gas */ | |
835 | struct efdr *file_ptr; /* file pointer */ | |
836 | struct ecoff_proc *proc_ptr; /* proc pointer */ | |
837 | struct localsym *begin_ptr; /* symbol at start of block */ | |
838 | struct ecoff_aux *index_ptr; /* index value to be filled in */ | |
839 | struct forward *forward_ref; /* forward references to this symbol */ | |
840 | long sym_index; /* final symbol index */ | |
841 | EXTR ecoff_sym; /* ECOFF debugging symbol */ | |
842 | } localsym_t; | |
843 | ||
844 | ||
845 | /* For aux information we keep the type and the data. */ | |
846 | typedef struct ecoff_aux { | |
847 | enum aux_type type; /* aux type */ | |
848 | AUXU data; /* aux data */ | |
849 | } aux_t; | |
850 | ||
851 | /* For a procedure we store the gas symbol as well as the PDR | |
852 | debugging information. */ | |
853 | typedef struct ecoff_proc { | |
854 | localsym_t *sym; /* associated symbol */ | |
855 | PDR pdr; /* ECOFF debugging info */ | |
856 | } proc_t; | |
857 | ||
858 | /* Number of proc_t structures allocated. */ | |
859 | static unsigned long proc_cnt; | |
860 | ||
861 | ||
862 | /* Forward reference list for tags referenced, but not yet defined. */ | |
863 | typedef struct forward { | |
864 | struct forward *next; /* next forward reference */ | |
865 | struct forward *free; /* free list pointer */ | |
866 | aux_t *ifd_ptr; /* pointer to store file index */ | |
867 | aux_t *index_ptr; /* pointer to store symbol index */ | |
868 | } forward_t; | |
869 | ||
870 | ||
871 | /* Linked list support for tags. The first tag in the list is always | |
872 | the current tag for that block. */ | |
873 | typedef struct tag { | |
874 | struct tag *free; /* free list pointer */ | |
875 | struct shash *hash_ptr; /* pointer to the hash table head */ | |
876 | struct tag *same_name; /* tag with same name in outer scope */ | |
877 | struct tag *same_block; /* next tag defined in the same block. */ | |
878 | struct forward *forward_ref; /* list of forward references */ | |
879 | bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ | |
880 | symint_t ifd; /* file # tag defined in */ | |
881 | localsym_t *sym; /* file's local symbols */ | |
882 | } tag_t; | |
883 | ||
884 | ||
885 | /* Head of a block's linked list of tags. */ | |
886 | typedef struct thead { | |
887 | struct thead *prev; /* previous block */ | |
888 | struct thead *free; /* free list pointer */ | |
889 | struct tag *first_tag; /* first tag in block defined */ | |
890 | } thead_t; | |
891 | ||
892 | ||
893 | /* Union containing pointers to each the small structures which are freed up. */ | |
894 | typedef union small_free { | |
895 | scope_t *f_scope; /* scope structure */ | |
896 | thead_t *f_thead; /* tag head structure */ | |
897 | tag_t *f_tag; /* tag element structure */ | |
898 | forward_t *f_forward; /* forward tag reference */ | |
899 | } small_free_t; | |
900 | ||
901 | ||
902 | /* String hash table entry. */ | |
903 | ||
904 | typedef struct shash { | |
905 | char *string; /* string we are hashing */ | |
906 | symint_t indx; /* index within string table */ | |
907 | EXTR *esym_ptr; /* global symbol pointer */ | |
908 | localsym_t *sym_ptr; /* local symbol pointer */ | |
909 | localsym_t *end_ptr; /* symbol pointer to end block */ | |
910 | tag_t *tag_ptr; /* tag pointer */ | |
911 | proc_t *proc_ptr; /* procedure descriptor pointer */ | |
912 | } shash_t; | |
913 | ||
914 | ||
915 | /* Type hash table support. The size of the hash table must fit | |
916 | within a page with the other extended file descriptor information. | |
917 | Because unique types which are hashed are fewer in number than | |
918 | strings, we use a smaller hash value. */ | |
919 | ||
920 | #define HASHBITS 30 | |
921 | ||
922 | #ifndef THASH_SIZE | |
923 | #define THASH_SIZE 113 | |
924 | #endif | |
925 | ||
926 | typedef struct thash { | |
927 | struct thash *next; /* next hash value */ | |
928 | AUXU type; /* type we are hashing */ | |
929 | symint_t indx; /* index within string table */ | |
930 | } thash_t; | |
931 | ||
932 | ||
933 | /* Extended file descriptor that contains all of the support necessary | |
934 | to add things to each file separately. */ | |
935 | typedef struct efdr { | |
936 | FDR fdr; /* File header to be written out */ | |
937 | FDR *orig_fdr; /* original file header */ | |
938 | char *name; /* filename */ | |
d7b2038f | 939 | int fake; /* whether this is faked .file */ |
9faec336 ILT |
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 */ | |
d7b2038f | 991 | 0, /* fake: whether this is a faked .file */ |
9faec336 ILT |
992 | 0, /* void_type: ptr to aux node for void type */ |
993 | 0, /* int_type: ptr to aux node for int type */ | |
994 | (scope_t *)0, /* cur_scope: current scope being processed */ | |
995 | 0, /* file_index: current file # */ | |
996 | 0, /* nested_scopes: # nested scopes */ | |
997 | INIT_VARRAY (char), /* strings: local string varray */ | |
998 | INIT_VARRAY (localsym_t), /* symbols: local symbols varray */ | |
999 | INIT_VARRAY (proc_t), /* procs: procedure varray */ | |
1000 | INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */ | |
1001 | ||
1002 | (struct efdr *)0, /* next_file: next file structure */ | |
1003 | ||
1004 | (struct hash_control *)0, /* str_hash: string hash table */ | |
1005 | { 0 }, /* thash_head: type hash table */ | |
1006 | }; | |
1007 | ||
1008 | ||
1009 | static efdr_t *first_file; /* first file descriptor */ | |
1010 | static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ | |
1011 | ||
1012 | ||
1013 | /* Line number information is kept in a list until the assembly is | |
1014 | finished. */ | |
1015 | typedef struct lineno_list { | |
1016 | struct lineno_list *next; /* next element in list */ | |
1017 | efdr_t *file; /* file this line is in */ | |
1018 | proc_t *proc; /* procedure this line is in */ | |
1019 | fragS *frag; /* fragment this line number is in */ | |
1020 | unsigned long paddr; /* offset within fragment */ | |
1021 | long lineno; /* actual line number */ | |
1022 | } lineno_list_t; | |
1023 | ||
1024 | static lineno_list_t *first_lineno; | |
1025 | static lineno_list_t **last_lineno_ptr = &first_lineno; | |
1026 | ||
1027 | /* Sometimes there will be some .loc statements before a .ent. We | |
1028 | keep them in this list so that we can fill in the procedure pointer | |
1029 | after we see the .ent. */ | |
1030 | static lineno_list_t *noproc_lineno; | |
1031 | ||
1032 | /* Union of various things that are held in pages. */ | |
1033 | typedef union page { | |
1034 | char byte [ PAGE_SIZE ]; | |
1035 | unsigned char ubyte [ PAGE_SIZE ]; | |
1036 | efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; | |
1037 | FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; | |
1038 | proc_t proc [ PAGE_SIZE / sizeof (proc_t) ]; | |
1039 | localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ]; | |
1040 | aux_t aux [ PAGE_SIZE / sizeof (aux_t) ]; | |
1041 | DNR dense [ PAGE_SIZE / sizeof (DNR) ]; | |
1042 | scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; | |
1043 | vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; | |
1044 | shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; | |
1045 | thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; | |
1046 | tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; | |
1047 | forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; | |
1048 | thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; | |
1049 | lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ]; | |
1050 | } page_t; | |
1051 | ||
1052 | ||
1053 | /* Structure holding allocation information for small sized structures. */ | |
1054 | typedef struct alloc_info { | |
1055 | char *alloc_name; /* name of this allocation type (must be first) */ | |
1056 | page_t *cur_page; /* current page being allocated from */ | |
1057 | small_free_t free_list; /* current free list if any */ | |
1058 | int unallocated; /* number of elements unallocated on page */ | |
1059 | int total_alloc; /* total number of allocations */ | |
1060 | int total_free; /* total number of frees */ | |
1061 | int total_pages; /* total number of pages allocated */ | |
1062 | } alloc_info_t; | |
1063 | ||
1064 | ||
1065 | /* Type information collected together. */ | |
1066 | typedef struct type_info { | |
1067 | bt_t basic_type; /* basic type */ | |
1068 | int orig_type; /* original COFF-based type */ | |
1069 | int num_tq; /* # type qualifiers */ | |
1070 | int num_dims; /* # dimensions */ | |
1071 | int num_sizes; /* # sizes */ | |
1072 | int extra_sizes; /* # extra sizes not tied with dims */ | |
1073 | tag_t * tag_ptr; /* tag pointer */ | |
1074 | int bitfield; /* symbol is a bitfield */ | |
1075 | tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ | |
1076 | symint_t dimensions [N_TQ]; /* dimensions for each array */ | |
1077 | symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of | |
1078 | struct/union/enum + bitfield size */ | |
1079 | } type_info_t; | |
1080 | ||
1081 | /* Pre-initialized type_info struct. */ | |
1082 | static const type_info_t type_info_init = { | |
1083 | bt_Nil, /* basic type */ | |
1084 | T_NULL, /* original COFF-based type */ | |
1085 | 0, /* # type qualifiers */ | |
1086 | 0, /* # dimensions */ | |
1087 | 0, /* # sizes */ | |
1088 | 0, /* sizes not tied with dims */ | |
1089 | NULL, /* ptr to tag */ | |
1090 | 0, /* bitfield */ | |
1091 | { /* type qualifiers */ | |
1092 | tq_Nil, | |
1093 | tq_Nil, | |
1094 | tq_Nil, | |
1095 | tq_Nil, | |
1096 | tq_Nil, | |
1097 | tq_Nil, | |
1098 | }, | |
1099 | { /* dimensions */ | |
1100 | 0, | |
1101 | 0, | |
1102 | 0, | |
1103 | 0, | |
1104 | 0, | |
1105 | 0 | |
1106 | }, | |
1107 | { /* sizes */ | |
1108 | 0, | |
1109 | 0, | |
1110 | 0, | |
1111 | 0, | |
1112 | 0, | |
1113 | 0, | |
1114 | 0, | |
1115 | 0, | |
1116 | }, | |
1117 | }; | |
1118 | ||
1119 | /* Global hash table for the tags table and global table for file | |
1120 | descriptors. */ | |
1121 | ||
1122 | static varray_t file_desc = INIT_VARRAY (efdr_t); | |
1123 | ||
1124 | static struct hash_control *tag_hash; | |
1125 | ||
1126 | /* Static types for int and void. Also, remember the last function's | |
1127 | type (which is set up when we encounter the declaration for the | |
1128 | function, and used when the end block for the function is emitted. */ | |
1129 | ||
1130 | static type_info_t int_type_info; | |
1131 | static type_info_t void_type_info; | |
1132 | static type_info_t last_func_type_info; | |
1133 | static symbolS *last_func_sym_value; | |
1134 | ||
1135 | ||
1136 | /* Convert COFF basic type to ECOFF basic type. The T_NULL type | |
1137 | really should use bt_Void, but this causes the current ecoff GDB to | |
1138 | issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS | |
1139 | 2.0) doesn't understand it, even though the compiler generates it. | |
1140 | Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler | |
1141 | suite, but for now go with what works. | |
1142 | ||
1143 | It would make sense for the .type and .scl directives to use the | |
1144 | ECOFF numbers directly, rather than using the COFF numbers and | |
1145 | mapping them. Unfortunately, this is historically what mips-tfile | |
1146 | expects, and changing gcc now would be a considerable pain (the | |
1147 | native compiler generates debugging information internally, rather | |
1148 | than via the assembler, so it will never use .type or .scl). */ | |
1149 | ||
1150 | static const bt_t map_coff_types[] = { | |
1151 | bt_Nil, /* T_NULL */ | |
1152 | bt_Nil, /* T_ARG */ | |
1153 | bt_Char, /* T_CHAR */ | |
1154 | bt_Short, /* T_SHORT */ | |
1155 | bt_Int, /* T_INT */ | |
1156 | bt_Long, /* T_LONG */ | |
1157 | bt_Float, /* T_FLOAT */ | |
1158 | bt_Double, /* T_DOUBLE */ | |
1159 | bt_Struct, /* T_STRUCT */ | |
1160 | bt_Union, /* T_UNION */ | |
1161 | bt_Enum, /* T_ENUM */ | |
1162 | bt_Enum, /* T_MOE */ | |
1163 | bt_UChar, /* T_UCHAR */ | |
1164 | bt_UShort, /* T_USHORT */ | |
1165 | bt_UInt, /* T_UINT */ | |
1166 | bt_ULong /* T_ULONG */ | |
1167 | }; | |
1168 | ||
1169 | /* Convert COFF storage class to ECOFF storage class. */ | |
1170 | static const sc_t map_coff_storage[] = { | |
1171 | sc_Nil, /* 0: C_NULL */ | |
1172 | sc_Abs, /* 1: C_AUTO auto var */ | |
1173 | sc_Undefined, /* 2: C_EXT external */ | |
1174 | sc_Data, /* 3: C_STAT static */ | |
1175 | sc_Register, /* 4: C_REG register */ | |
1176 | sc_Undefined, /* 5: C_EXTDEF ??? */ | |
1177 | sc_Text, /* 6: C_LABEL label */ | |
1178 | sc_Text, /* 7: C_ULABEL user label */ | |
1179 | sc_Info, /* 8: C_MOS member of struct */ | |
1180 | sc_Abs, /* 9: C_ARG argument */ | |
1181 | sc_Info, /* 10: C_STRTAG struct tag */ | |
1182 | sc_Info, /* 11: C_MOU member of union */ | |
1183 | sc_Info, /* 12: C_UNTAG union tag */ | |
1184 | sc_Info, /* 13: C_TPDEF typedef */ | |
1185 | sc_Data, /* 14: C_USTATIC ??? */ | |
1186 | sc_Info, /* 15: C_ENTAG enum tag */ | |
1187 | sc_Info, /* 16: C_MOE member of enum */ | |
1188 | sc_Register, /* 17: C_REGPARM register parameter */ | |
1189 | sc_Bits, /* 18; C_FIELD bitfield */ | |
1190 | sc_Nil, /* 19 */ | |
1191 | sc_Nil, /* 20 */ | |
1192 | sc_Nil, /* 21 */ | |
1193 | sc_Nil, /* 22 */ | |
1194 | sc_Nil, /* 23 */ | |
1195 | sc_Nil, /* 24 */ | |
1196 | sc_Nil, /* 25 */ | |
1197 | sc_Nil, /* 26 */ | |
1198 | sc_Nil, /* 27 */ | |
1199 | sc_Nil, /* 28 */ | |
1200 | sc_Nil, /* 29 */ | |
1201 | sc_Nil, /* 30 */ | |
1202 | sc_Nil, /* 31 */ | |
1203 | sc_Nil, /* 32 */ | |
1204 | sc_Nil, /* 33 */ | |
1205 | sc_Nil, /* 34 */ | |
1206 | sc_Nil, /* 35 */ | |
1207 | sc_Nil, /* 36 */ | |
1208 | sc_Nil, /* 37 */ | |
1209 | sc_Nil, /* 38 */ | |
1210 | sc_Nil, /* 39 */ | |
1211 | sc_Nil, /* 40 */ | |
1212 | sc_Nil, /* 41 */ | |
1213 | sc_Nil, /* 42 */ | |
1214 | sc_Nil, /* 43 */ | |
1215 | sc_Nil, /* 44 */ | |
1216 | sc_Nil, /* 45 */ | |
1217 | sc_Nil, /* 46 */ | |
1218 | sc_Nil, /* 47 */ | |
1219 | sc_Nil, /* 48 */ | |
1220 | sc_Nil, /* 49 */ | |
1221 | sc_Nil, /* 50 */ | |
1222 | sc_Nil, /* 51 */ | |
1223 | sc_Nil, /* 52 */ | |
1224 | sc_Nil, /* 53 */ | |
1225 | sc_Nil, /* 54 */ | |
1226 | sc_Nil, /* 55 */ | |
1227 | sc_Nil, /* 56 */ | |
1228 | sc_Nil, /* 57 */ | |
1229 | sc_Nil, /* 58 */ | |
1230 | sc_Nil, /* 59 */ | |
1231 | sc_Nil, /* 60 */ | |
1232 | sc_Nil, /* 61 */ | |
1233 | sc_Nil, /* 62 */ | |
1234 | sc_Nil, /* 63 */ | |
1235 | sc_Nil, /* 64 */ | |
1236 | sc_Nil, /* 65 */ | |
1237 | sc_Nil, /* 66 */ | |
1238 | sc_Nil, /* 67 */ | |
1239 | sc_Nil, /* 68 */ | |
1240 | sc_Nil, /* 69 */ | |
1241 | sc_Nil, /* 70 */ | |
1242 | sc_Nil, /* 71 */ | |
1243 | sc_Nil, /* 72 */ | |
1244 | sc_Nil, /* 73 */ | |
1245 | sc_Nil, /* 74 */ | |
1246 | sc_Nil, /* 75 */ | |
1247 | sc_Nil, /* 76 */ | |
1248 | sc_Nil, /* 77 */ | |
1249 | sc_Nil, /* 78 */ | |
1250 | sc_Nil, /* 79 */ | |
1251 | sc_Nil, /* 80 */ | |
1252 | sc_Nil, /* 81 */ | |
1253 | sc_Nil, /* 82 */ | |
1254 | sc_Nil, /* 83 */ | |
1255 | sc_Nil, /* 84 */ | |
1256 | sc_Nil, /* 85 */ | |
1257 | sc_Nil, /* 86 */ | |
1258 | sc_Nil, /* 87 */ | |
1259 | sc_Nil, /* 88 */ | |
1260 | sc_Nil, /* 89 */ | |
1261 | sc_Nil, /* 90 */ | |
1262 | sc_Nil, /* 91 */ | |
1263 | sc_Nil, /* 92 */ | |
1264 | sc_Nil, /* 93 */ | |
1265 | sc_Nil, /* 94 */ | |
1266 | sc_Nil, /* 95 */ | |
1267 | sc_Nil, /* 96 */ | |
1268 | sc_Nil, /* 97 */ | |
1269 | sc_Nil, /* 98 */ | |
1270 | sc_Nil, /* 99 */ | |
1271 | sc_Text, /* 100: C_BLOCK block start/end */ | |
1272 | sc_Text, /* 101: C_FCN function start/end */ | |
1273 | sc_Info, /* 102: C_EOS end of struct/union/enum */ | |
1274 | sc_Nil, /* 103: C_FILE file start */ | |
1275 | sc_Nil, /* 104: C_LINE line number */ | |
1276 | sc_Nil, /* 105: C_ALIAS combined type info */ | |
1277 | sc_Nil, /* 106: C_HIDDEN ??? */ | |
1278 | }; | |
1279 | ||
1280 | /* Convert COFF storage class to ECOFF symbol type. */ | |
1281 | static const st_t map_coff_sym_type[] = { | |
1282 | st_Nil, /* 0: C_NULL */ | |
1283 | st_Local, /* 1: C_AUTO auto var */ | |
1284 | st_Global, /* 2: C_EXT external */ | |
1285 | st_Static, /* 3: C_STAT static */ | |
1286 | st_Local, /* 4: C_REG register */ | |
1287 | st_Global, /* 5: C_EXTDEF ??? */ | |
1288 | st_Label, /* 6: C_LABEL label */ | |
1289 | st_Label, /* 7: C_ULABEL user label */ | |
1290 | st_Member, /* 8: C_MOS member of struct */ | |
1291 | st_Param, /* 9: C_ARG argument */ | |
1292 | st_Block, /* 10: C_STRTAG struct tag */ | |
1293 | st_Member, /* 11: C_MOU member of union */ | |
1294 | st_Block, /* 12: C_UNTAG union tag */ | |
1295 | st_Typedef, /* 13: C_TPDEF typedef */ | |
1296 | st_Static, /* 14: C_USTATIC ??? */ | |
1297 | st_Block, /* 15: C_ENTAG enum tag */ | |
1298 | st_Member, /* 16: C_MOE member of enum */ | |
1299 | st_Param, /* 17: C_REGPARM register parameter */ | |
1300 | st_Member, /* 18; C_FIELD bitfield */ | |
1301 | st_Nil, /* 19 */ | |
1302 | st_Nil, /* 20 */ | |
1303 | st_Nil, /* 21 */ | |
1304 | st_Nil, /* 22 */ | |
1305 | st_Nil, /* 23 */ | |
1306 | st_Nil, /* 24 */ | |
1307 | st_Nil, /* 25 */ | |
1308 | st_Nil, /* 26 */ | |
1309 | st_Nil, /* 27 */ | |
1310 | st_Nil, /* 28 */ | |
1311 | st_Nil, /* 29 */ | |
1312 | st_Nil, /* 30 */ | |
1313 | st_Nil, /* 31 */ | |
1314 | st_Nil, /* 32 */ | |
1315 | st_Nil, /* 33 */ | |
1316 | st_Nil, /* 34 */ | |
1317 | st_Nil, /* 35 */ | |
1318 | st_Nil, /* 36 */ | |
1319 | st_Nil, /* 37 */ | |
1320 | st_Nil, /* 38 */ | |
1321 | st_Nil, /* 39 */ | |
1322 | st_Nil, /* 40 */ | |
1323 | st_Nil, /* 41 */ | |
1324 | st_Nil, /* 42 */ | |
1325 | st_Nil, /* 43 */ | |
1326 | st_Nil, /* 44 */ | |
1327 | st_Nil, /* 45 */ | |
1328 | st_Nil, /* 46 */ | |
1329 | st_Nil, /* 47 */ | |
1330 | st_Nil, /* 48 */ | |
1331 | st_Nil, /* 49 */ | |
1332 | st_Nil, /* 50 */ | |
1333 | st_Nil, /* 51 */ | |
1334 | st_Nil, /* 52 */ | |
1335 | st_Nil, /* 53 */ | |
1336 | st_Nil, /* 54 */ | |
1337 | st_Nil, /* 55 */ | |
1338 | st_Nil, /* 56 */ | |
1339 | st_Nil, /* 57 */ | |
1340 | st_Nil, /* 58 */ | |
1341 | st_Nil, /* 59 */ | |
1342 | st_Nil, /* 60 */ | |
1343 | st_Nil, /* 61 */ | |
1344 | st_Nil, /* 62 */ | |
1345 | st_Nil, /* 63 */ | |
1346 | st_Nil, /* 64 */ | |
1347 | st_Nil, /* 65 */ | |
1348 | st_Nil, /* 66 */ | |
1349 | st_Nil, /* 67 */ | |
1350 | st_Nil, /* 68 */ | |
1351 | st_Nil, /* 69 */ | |
1352 | st_Nil, /* 70 */ | |
1353 | st_Nil, /* 71 */ | |
1354 | st_Nil, /* 72 */ | |
1355 | st_Nil, /* 73 */ | |
1356 | st_Nil, /* 74 */ | |
1357 | st_Nil, /* 75 */ | |
1358 | st_Nil, /* 76 */ | |
1359 | st_Nil, /* 77 */ | |
1360 | st_Nil, /* 78 */ | |
1361 | st_Nil, /* 79 */ | |
1362 | st_Nil, /* 80 */ | |
1363 | st_Nil, /* 81 */ | |
1364 | st_Nil, /* 82 */ | |
1365 | st_Nil, /* 83 */ | |
1366 | st_Nil, /* 84 */ | |
1367 | st_Nil, /* 85 */ | |
1368 | st_Nil, /* 86 */ | |
1369 | st_Nil, /* 87 */ | |
1370 | st_Nil, /* 88 */ | |
1371 | st_Nil, /* 89 */ | |
1372 | st_Nil, /* 90 */ | |
1373 | st_Nil, /* 91 */ | |
1374 | st_Nil, /* 92 */ | |
1375 | st_Nil, /* 93 */ | |
1376 | st_Nil, /* 94 */ | |
1377 | st_Nil, /* 95 */ | |
1378 | st_Nil, /* 96 */ | |
1379 | st_Nil, /* 97 */ | |
1380 | st_Nil, /* 98 */ | |
1381 | st_Nil, /* 99 */ | |
1382 | st_Block, /* 100: C_BLOCK block start/end */ | |
1383 | st_Proc, /* 101: C_FCN function start/end */ | |
1384 | st_End, /* 102: C_EOS end of struct/union/enum */ | |
1385 | st_File, /* 103: C_FILE file start */ | |
1386 | st_Nil, /* 104: C_LINE line number */ | |
1387 | st_Nil, /* 105: C_ALIAS combined type info */ | |
1388 | st_Nil, /* 106: C_HIDDEN ??? */ | |
1389 | }; | |
1390 | ||
1391 | ||
1392 | /* Keep track of different sized allocation requests. */ | |
1393 | static alloc_info_t alloc_counts[ (int)alloc_type_last ]; | |
1394 | \f | |
22ba90ce ILT |
1395 | /* Record whether we have seen any debugging information. */ |
1396 | int ecoff_debugging_seen = 0; | |
1397 | ||
9faec336 ILT |
1398 | /* Various statics. */ |
1399 | static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ | |
1400 | static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */ | |
daad3bbf | 1401 | static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */ |
9faec336 ILT |
1402 | static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */ |
1403 | static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */ | |
1404 | #ifdef ECOFF_DEBUG | |
1405 | static int debug = 0; /* trace functions */ | |
1406 | #endif | |
1407 | static int stabs_seen = 0; /* != 0 if stabs have been seen */ | |
1408 | ||
012353f7 | 1409 | static int current_file_idx; |
a2a1a548 | 1410 | static const char *current_stabs_filename; |
9faec336 ILT |
1411 | |
1412 | /* Pseudo symbol to use when putting stabs into the symbol table. */ | |
1413 | #ifndef STABS_SYMBOL | |
1414 | #define STABS_SYMBOL "@stabs" | |
1415 | #endif | |
1416 | ||
1417 | static char stabs_symbol[] = STABS_SYMBOL; | |
1418 | \f | |
1419 | /* Prototypes for functions defined in this file. */ | |
1420 | ||
1421 | static void add_varray_page PARAMS ((varray_t *vp)); | |
1422 | static symint_t add_string PARAMS ((varray_t *vp, | |
1423 | struct hash_control *hash_tbl, | |
1424 | const char *str, | |
1425 | shash_t **ret_hash)); | |
1426 | static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type, | |
1427 | sc_t storage, symbolS *sym, | |
1428 | symint_t value, | |
1429 | symint_t indx)); | |
1430 | static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word)); | |
1431 | static symint_t add_aux_sym_rndx PARAMS ((int file_index, | |
1432 | symint_t sym_index)); | |
1433 | static symint_t add_aux_sym_tir PARAMS ((type_info_t *t, | |
1434 | hash_state_t state, | |
1435 | thash_t **hash_tbl)); | |
1436 | static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym, | |
1437 | bt_t basic_type)); | |
1438 | static void add_unknown_tag PARAMS ((tag_t *ptag)); | |
1439 | static void add_procedure PARAMS ((char *func)); | |
d7b2038f | 1440 | static void add_file PARAMS ((const char *file_name, int indx, int fake)); |
9faec336 ILT |
1441 | #ifdef ECOFF_DEBUG |
1442 | static char *sc_to_string PARAMS ((sc_t storage_class)); | |
1443 | static char *st_to_string PARAMS ((st_t symbol_type)); | |
1444 | #endif | |
1445 | static void mark_stabs PARAMS ((int)); | |
1446 | static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend, | |
1447 | char *bufptr, unsigned long need)); | |
1448 | static unsigned long ecoff_padding_adjust | |
1449 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1450 | unsigned long offset, char **bufptrptr)); | |
1451 | static unsigned long ecoff_build_lineno | |
1452 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1453 | unsigned long offset, long *linecntptr)); | |
1454 | static unsigned long ecoff_build_symbols | |
1455 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1456 | unsigned long offset)); | |
1457 | static unsigned long ecoff_build_procs | |
1458 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1459 | unsigned long offset)); | |
1460 | static unsigned long ecoff_build_aux | |
1461 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1462 | unsigned long offset)); | |
1463 | static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend, | |
1464 | unsigned long offset, | |
1465 | varray_t *vp)); | |
1466 | static unsigned long ecoff_build_ss | |
1467 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1468 | unsigned long offset)); | |
1469 | static unsigned long ecoff_build_fdr | |
1470 | PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend, | |
1471 | unsigned long offset)); | |
012353f7 | 1472 | static void ecoff_setup_ext PARAMS ((void)); |
9faec336 ILT |
1473 | static page_t *allocate_cluster PARAMS ((unsigned long npages)); |
1474 | static page_t *allocate_page PARAMS ((void)); | |
1475 | static scope_t *allocate_scope PARAMS ((void)); | |
1476 | static void free_scope PARAMS ((scope_t *ptr)); | |
1477 | static vlinks_t *allocate_vlinks PARAMS ((void)); | |
1478 | static shash_t *allocate_shash PARAMS ((void)); | |
1479 | static thash_t *allocate_thash PARAMS ((void)); | |
1480 | static tag_t *allocate_tag PARAMS ((void)); | |
1481 | static void free_tag PARAMS ((tag_t *ptr)); | |
1482 | static forward_t *allocate_forward PARAMS ((void)); | |
1483 | static thead_t *allocate_thead PARAMS ((void)); | |
1484 | static void free_thead PARAMS ((thead_t *ptr)); | |
1485 | static lineno_list_t *allocate_lineno_list PARAMS ((void)); | |
daad3bbf | 1486 | static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int)); |
9faec336 ILT |
1487 | \f |
1488 | /* This function should be called when the assembler starts up. */ | |
1489 | ||
1490 | void | |
1491 | ecoff_read_begin_hook () | |
1492 | { | |
1493 | tag_hash = hash_new (); | |
1494 | top_tag_head = allocate_thead (); | |
1495 | top_tag_head->first_tag = (tag_t *) NULL; | |
1496 | top_tag_head->free = (thead_t *) NULL; | |
1497 | top_tag_head->prev = cur_tag_head; | |
1498 | cur_tag_head = top_tag_head; | |
1499 | } | |
1500 | ||
1501 | /* This function should be called when a symbol is created. */ | |
1502 | ||
1503 | void | |
1504 | ecoff_symbol_new_hook (symbolP) | |
1505 | symbolS *symbolP; | |
1506 | { | |
3ffbc907 ILT |
1507 | /* Make sure that we have a file pointer, but only if we have seen a |
1508 | file. If we haven't seen a file, then this is a probably special | |
1509 | symbol created by md_begin which may required special handling at | |
1510 | some point. Creating a dummy file with a dummy name is certainly | |
1511 | wrong. */ | |
1512 | if (cur_file_ptr == (efdr_t *) NULL | |
1513 | && seen_at_least_1_file ()) | |
d7b2038f | 1514 | add_file ((const char *) NULL, 0, 1); |
9faec336 ILT |
1515 | symbolP->ecoff_file = cur_file_ptr; |
1516 | symbolP->ecoff_symbol = NULL; | |
f85ad9d5 | 1517 | symbolP->ecoff_extern_size = 0; |
9faec336 ILT |
1518 | } |
1519 | \f | |
1520 | /* Add a page to a varray object. */ | |
1521 | ||
1522 | static void | |
1523 | add_varray_page (vp) | |
1524 | varray_t *vp; /* varray to add page to */ | |
1525 | { | |
1526 | vlinks_t *new_links = allocate_vlinks (); | |
1527 | ||
1528 | #ifdef MALLOC_CHECK | |
1529 | if (vp->object_size > 1) | |
1530 | new_links->datum = (page_t *) xcalloc (1, vp->object_size); | |
1531 | else | |
1532 | #endif | |
1533 | new_links->datum = allocate_page (); | |
1534 | ||
1535 | alloc_counts[(int)alloc_type_varray].total_alloc++; | |
1536 | alloc_counts[(int)alloc_type_varray].total_pages++; | |
1537 | ||
1538 | new_links->start_index = vp->num_allocated; | |
1539 | vp->objects_last_page = 0; | |
1540 | ||
1541 | if (vp->first == (vlinks_t *) NULL) /* first allocation? */ | |
1542 | vp->first = vp->last = new_links; | |
1543 | else | |
1544 | { /* 2nd or greater allocation */ | |
1545 | new_links->prev = vp->last; | |
1546 | vp->last->next = new_links; | |
1547 | vp->last = new_links; | |
1548 | } | |
1549 | } | |
1550 | \f | |
1551 | /* Add a string (and null pad) to one of the string tables. */ | |
1552 | ||
1553 | static symint_t | |
1554 | add_string (vp, hash_tbl, str, ret_hash) | |
1555 | varray_t *vp; /* string obstack */ | |
1556 | struct hash_control *hash_tbl; /* ptr to hash table */ | |
1557 | const char *str; /* string */ | |
1558 | shash_t **ret_hash; /* return hash pointer */ | |
1559 | { | |
1560 | register unsigned long len = strlen (str); | |
1561 | register shash_t *hash_ptr; | |
1562 | ||
1563 | if (len >= PAGE_USIZE) | |
1564 | as_fatal ("String too big (%lu bytes)", len); | |
1565 | ||
1566 | hash_ptr = (shash_t *) hash_find (hash_tbl, str); | |
1567 | if (hash_ptr == (shash_t *) NULL) | |
1568 | { | |
1569 | register const char *err; | |
1570 | ||
1571 | if (vp->objects_last_page + len >= PAGE_USIZE) | |
1572 | { | |
1573 | vp->num_allocated = | |
1574 | ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; | |
1575 | add_varray_page (vp); | |
1576 | } | |
1577 | ||
1578 | hash_ptr = allocate_shash (); | |
1579 | hash_ptr->indx = vp->num_allocated; | |
1580 | ||
1581 | hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; | |
1582 | ||
1583 | vp->objects_last_page += len + 1; | |
1584 | vp->num_allocated += len + 1; | |
1585 | ||
1586 | strcpy (hash_ptr->string, str); | |
1587 | ||
1588 | err = hash_insert (hash_tbl, str, (char *) hash_ptr); | |
1589 | if (err) | |
1590 | as_fatal ("Inserting \"%s\" into string hash table: %s", | |
1591 | str, err); | |
1592 | } | |
1593 | ||
1594 | if (ret_hash != (shash_t **) NULL) | |
1595 | *ret_hash = hash_ptr; | |
1596 | ||
1597 | return hash_ptr->indx; | |
1598 | } | |
1599 | \f | |
1600 | /* Add debugging information for a symbol. */ | |
1601 | ||
1602 | static localsym_t * | |
1603 | add_ecoff_symbol (str, type, storage, sym_value, value, indx) | |
1604 | const char *str; /* symbol name */ | |
1605 | st_t type; /* symbol type */ | |
1606 | sc_t storage; /* storage class */ | |
1607 | symbolS *sym_value; /* associated symbol. */ | |
1608 | symint_t value; /* value of symbol */ | |
1609 | symint_t indx; /* index to local/aux. syms */ | |
1610 | { | |
1611 | localsym_t *psym; | |
1612 | register scope_t *pscope; | |
1613 | register thead_t *ptag_head; | |
1614 | register tag_t *ptag; | |
1615 | register tag_t *ptag_next; | |
1616 | register varray_t *vp; | |
1617 | register int scope_delta = 0; | |
1618 | shash_t *hash_ptr = (shash_t *) NULL; | |
1619 | ||
1620 | if (cur_file_ptr == (efdr_t *) NULL) | |
1621 | as_fatal ("no current file pointer"); | |
1622 | ||
1623 | vp = &cur_file_ptr->symbols; | |
1624 | ||
1625 | if (vp->objects_last_page == vp->objects_per_page) | |
1626 | add_varray_page (vp); | |
1627 | ||
1628 | psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; | |
1629 | ||
1630 | if (str == (const char *) NULL && sym_value != (symbolS *) NULL) | |
1631 | psym->name = S_GET_NAME (sym_value); | |
1632 | else | |
1633 | psym->name = str; | |
1634 | psym->as_sym = sym_value; | |
1635 | if (sym_value != (symbolS *) NULL) | |
1636 | sym_value->ecoff_symbol = psym; | |
1637 | psym->file_ptr = cur_file_ptr; | |
1638 | psym->proc_ptr = cur_proc_ptr; | |
1639 | psym->begin_ptr = (localsym_t *) NULL; | |
1640 | psym->index_ptr = (aux_t *) NULL; | |
1641 | psym->forward_ref = (forward_t *) NULL; | |
1642 | psym->sym_index = -1; | |
1643 | memset (&psym->ecoff_sym, 0, sizeof (EXTR)); | |
1644 | psym->ecoff_sym.asym.value = value; | |
1645 | psym->ecoff_sym.asym.st = (unsigned) type; | |
1646 | psym->ecoff_sym.asym.sc = (unsigned) storage; | |
1647 | psym->ecoff_sym.asym.index = indx; | |
1648 | ||
1649 | /* If there is an associated symbol, we wait until the end of the | |
1650 | assembly before deciding where to put the name (it may be just an | |
1651 | external symbol). Otherwise, this is just a debugging symbol and | |
1652 | the name should go with the current file. */ | |
1653 | if (sym_value == (symbolS *) NULL) | |
1654 | psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) | |
1655 | ? 0 | |
1656 | : add_string (&cur_file_ptr->strings, | |
1657 | cur_file_ptr->str_hash, | |
1658 | str, | |
1659 | &hash_ptr)); | |
1660 | ||
1661 | ++vp->num_allocated; | |
1662 | ||
1663 | if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) | |
1664 | return psym; | |
1665 | ||
1666 | /* Save the symbol within the hash table if this is a static | |
1667 | item, and it has a name. */ | |
1668 | if (hash_ptr != (shash_t *) NULL | |
1669 | && (type == st_Global || type == st_Static || type == st_Label | |
1670 | || type == st_Proc || type == st_StaticProc)) | |
1671 | hash_ptr->sym_ptr = psym; | |
1672 | ||
1673 | /* push or pop a scope if appropriate. */ | |
1674 | switch (type) | |
1675 | { | |
1676 | default: | |
1677 | break; | |
1678 | ||
1679 | case st_File: /* beginning of file */ | |
1680 | case st_Proc: /* procedure */ | |
1681 | case st_StaticProc: /* static procedure */ | |
1682 | case st_Block: /* begin scope */ | |
1683 | pscope = allocate_scope (); | |
1684 | pscope->prev = cur_file_ptr->cur_scope; | |
1685 | pscope->lsym = psym; | |
1686 | pscope->type = type; | |
1687 | cur_file_ptr->cur_scope = pscope; | |
1688 | ||
1689 | if (type != st_File) | |
1690 | scope_delta = 1; | |
1691 | ||
1692 | /* For every block type except file, struct, union, or | |
1693 | enumeration blocks, push a level on the tag stack. We omit | |
1694 | file types, so that tags can span file boundaries. */ | |
1695 | if (type != st_File && storage != sc_Info) | |
1696 | { | |
1697 | ptag_head = allocate_thead (); | |
1698 | ptag_head->first_tag = 0; | |
1699 | ptag_head->prev = cur_tag_head; | |
1700 | cur_tag_head = ptag_head; | |
1701 | } | |
1702 | break; | |
1703 | ||
1704 | case st_End: | |
1705 | pscope = cur_file_ptr->cur_scope; | |
1706 | if (pscope == (scope_t *) NULL) | |
1707 | as_fatal ("too many st_End's"); | |
1708 | else | |
1709 | { | |
1710 | st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; | |
1711 | ||
1712 | psym->begin_ptr = pscope->lsym; | |
1713 | ||
1714 | if (begin_type != st_File) | |
1715 | scope_delta = -1; | |
1716 | ||
1717 | /* Except for file, structure, union, or enumeration end | |
1718 | blocks remove all tags created within this scope. */ | |
1719 | if (begin_type != st_File && storage != sc_Info) | |
1720 | { | |
1721 | ptag_head = cur_tag_head; | |
1722 | cur_tag_head = ptag_head->prev; | |
1723 | ||
1724 | for (ptag = ptag_head->first_tag; | |
1725 | ptag != (tag_t *) NULL; | |
1726 | ptag = ptag_next) | |
1727 | { | |
1728 | if (ptag->forward_ref != (forward_t *) NULL) | |
1729 | add_unknown_tag (ptag); | |
1730 | ||
1731 | ptag_next = ptag->same_block; | |
1732 | ptag->hash_ptr->tag_ptr = ptag->same_name; | |
1733 | free_tag (ptag); | |
1734 | } | |
1735 | ||
1736 | free_thead (ptag_head); | |
1737 | } | |
1738 | ||
1739 | cur_file_ptr->cur_scope = pscope->prev; | |
1740 | ||
1741 | /* block begin gets next sym #. This is set when we know | |
1742 | the symbol index value. */ | |
1743 | ||
1744 | /* Functions push two or more aux words as follows: | |
1745 | 1st word: index+1 of the end symbol (filled in later). | |
1746 | 2nd word: type of the function (plus any aux words needed). | |
1747 | Also, tie the external pointer back to the function begin symbol. */ | |
1748 | if (begin_type != st_File && begin_type != st_Block) | |
1749 | { | |
1750 | symint_t ty; | |
1751 | varray_t *svp = &cur_file_ptr->aux_syms; | |
1752 | ||
1753 | pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); | |
1754 | pscope->lsym->index_ptr = | |
1755 | &svp->last->datum->aux[svp->objects_last_page - 1]; | |
1756 | ty = add_aux_sym_tir (&last_func_type_info, | |
1757 | hash_no, | |
1758 | &cur_file_ptr->thash_head[0]); | |
1759 | ||
1760 | /* This seems to be unnecessary. I'm not even sure what it is | |
1761 | * intended to do. It's from mips-tfile. | |
1762 | * if (last_func_sym_value != (symbolS *) NULL) | |
1763 | * { | |
1764 | * last_func_sym_value->ifd = cur_file_ptr->file_index; | |
1765 | * last_func_sym_value->index = ty; | |
1766 | * } | |
1767 | */ | |
1768 | } | |
1769 | ||
1770 | free_scope (pscope); | |
1771 | } | |
1772 | } | |
1773 | ||
1774 | cur_file_ptr->nested_scopes += scope_delta; | |
1775 | ||
1776 | #ifdef ECOFF_DEBUG | |
1777 | if (debug && type != st_File | |
1778 | && (debug > 2 || type == st_Block || type == st_End | |
1779 | || type == st_Proc || type == st_StaticProc)) | |
1780 | { | |
1781 | char *sc_str = sc_to_string (storage); | |
1782 | char *st_str = st_to_string (type); | |
1783 | int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); | |
1784 | ||
1785 | fprintf (stderr, | |
1786 | "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", | |
1787 | value, depth, sc_str); | |
1788 | ||
1789 | if (str_start && str_end_p1 - str_start > 0) | |
1790 | fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start); | |
1791 | else | |
1792 | { | |
1793 | unsigned long len = strlen (st_str); | |
1794 | fprintf (stderr, " st= %.*s\n", len-1, st_str); | |
1795 | } | |
1796 | } | |
1797 | #endif | |
1798 | ||
1799 | return psym; | |
1800 | } | |
1801 | \f | |
1802 | /* Add an auxiliary symbol (passing a symint). This is actually used | |
1803 | for integral aux types, not just symints. */ | |
1804 | ||
1805 | static symint_t | |
1806 | add_aux_sym_symint (aux_word) | |
1807 | symint_t aux_word; /* auxiliary information word */ | |
1808 | { | |
1809 | register varray_t *vp; | |
1810 | register aux_t *aux_ptr; | |
1811 | ||
1812 | if (cur_file_ptr == (efdr_t *) NULL) | |
1813 | as_fatal ("no current file pointer"); | |
1814 | ||
1815 | vp = &cur_file_ptr->aux_syms; | |
1816 | ||
1817 | if (vp->objects_last_page == vp->objects_per_page) | |
1818 | add_varray_page (vp); | |
1819 | ||
1820 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; | |
1821 | aux_ptr->type = aux_isym; | |
1822 | aux_ptr->data.isym = aux_word; | |
1823 | ||
1824 | return vp->num_allocated++; | |
1825 | } | |
1826 | ||
1827 | ||
1828 | /* Add an auxiliary symbol (passing a file/symbol index combo). */ | |
1829 | ||
1830 | static symint_t | |
1831 | add_aux_sym_rndx (file_index, sym_index) | |
1832 | int file_index; | |
1833 | symint_t sym_index; | |
1834 | { | |
1835 | register varray_t *vp; | |
1836 | register aux_t *aux_ptr; | |
1837 | ||
1838 | if (cur_file_ptr == (efdr_t *) NULL) | |
1839 | as_fatal ("no current file pointer"); | |
1840 | ||
1841 | vp = &cur_file_ptr->aux_syms; | |
1842 | ||
1843 | if (vp->objects_last_page == vp->objects_per_page) | |
1844 | add_varray_page (vp); | |
1845 | ||
1846 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; | |
1847 | aux_ptr->type = aux_rndx; | |
1848 | aux_ptr->data.rndx.rfd = file_index; | |
1849 | aux_ptr->data.rndx.index = sym_index; | |
1850 | ||
1851 | return vp->num_allocated++; | |
1852 | } | |
1853 | \f | |
1854 | /* Add an auxiliary symbol (passing the basic type and possibly | |
1855 | type qualifiers). */ | |
1856 | ||
1857 | static symint_t | |
1858 | add_aux_sym_tir (t, state, hash_tbl) | |
1859 | type_info_t *t; /* current type information */ | |
1860 | hash_state_t state; /* whether to hash type or not */ | |
1861 | thash_t **hash_tbl; /* pointer to hash table to use */ | |
1862 | { | |
1863 | register varray_t *vp; | |
1864 | register aux_t *aux_ptr; | |
1865 | static AUXU init_aux; | |
1866 | symint_t ret; | |
1867 | int i; | |
1868 | AUXU aux; | |
1869 | ||
1870 | if (cur_file_ptr == (efdr_t *) NULL) | |
1871 | as_fatal ("no current file pointer"); | |
1872 | ||
1873 | vp = &cur_file_ptr->aux_syms; | |
1874 | ||
1875 | aux = init_aux; | |
1876 | aux.ti.bt = (int) t->basic_type; | |
1877 | aux.ti.continued = 0; | |
1878 | aux.ti.fBitfield = t->bitfield; | |
1879 | ||
1880 | aux.ti.tq0 = (int) t->type_qualifiers[0]; | |
1881 | aux.ti.tq1 = (int) t->type_qualifiers[1]; | |
1882 | aux.ti.tq2 = (int) t->type_qualifiers[2]; | |
1883 | aux.ti.tq3 = (int) t->type_qualifiers[3]; | |
1884 | aux.ti.tq4 = (int) t->type_qualifiers[4]; | |
1885 | aux.ti.tq5 = (int) t->type_qualifiers[5]; | |
1886 | ||
1887 | ||
1888 | /* For anything that adds additional information, we must not hash, | |
1889 | so check here, and reset our state. */ | |
1890 | ||
1891 | if (state != hash_no | |
1892 | && (t->type_qualifiers[0] == tq_Array | |
1893 | || t->type_qualifiers[1] == tq_Array | |
1894 | || t->type_qualifiers[2] == tq_Array | |
1895 | || t->type_qualifiers[3] == tq_Array | |
1896 | || t->type_qualifiers[4] == tq_Array | |
1897 | || t->type_qualifiers[5] == tq_Array | |
1898 | || t->basic_type == bt_Struct | |
1899 | || t->basic_type == bt_Union | |
1900 | || t->basic_type == bt_Enum | |
1901 | || t->bitfield | |
1902 | || t->num_dims > 0)) | |
1903 | state = hash_no; | |
1904 | ||
1905 | /* See if we can hash this type, and save some space, but some types | |
1906 | can't be hashed (because they contain arrays or continuations), | |
1907 | and others can be put into the hash list, but cannot use existing | |
1908 | types because other aux entries precede this one. */ | |
1909 | ||
1910 | if (state != hash_no) | |
1911 | { | |
1912 | register thash_t *hash_ptr; | |
1913 | register symint_t hi; | |
1914 | ||
1915 | hi = aux.isym & ((1 << HASHBITS) - 1); | |
1916 | hi %= THASH_SIZE; | |
1917 | ||
1918 | for (hash_ptr = hash_tbl[hi]; | |
1919 | hash_ptr != (thash_t *)0; | |
1920 | hash_ptr = hash_ptr->next) | |
1921 | { | |
1922 | if (aux.isym == hash_ptr->type.isym) | |
1923 | break; | |
1924 | } | |
1925 | ||
1926 | if (hash_ptr != (thash_t *) NULL && state == hash_yes) | |
1927 | return hash_ptr->indx; | |
1928 | ||
1929 | if (hash_ptr == (thash_t *) NULL) | |
1930 | { | |
1931 | hash_ptr = allocate_thash (); | |
1932 | hash_ptr->next = hash_tbl[hi]; | |
1933 | hash_ptr->type = aux; | |
1934 | hash_ptr->indx = vp->num_allocated; | |
1935 | hash_tbl[hi] = hash_ptr; | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | /* Everything is set up, add the aux symbol. */ | |
1940 | if (vp->objects_last_page == vp->objects_per_page) | |
1941 | add_varray_page (vp); | |
1942 | ||
1943 | aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; | |
1944 | aux_ptr->type = aux_tir; | |
1945 | aux_ptr->data = aux; | |
1946 | ||
1947 | ret = vp->num_allocated++; | |
1948 | ||
1949 | /* Add bitfield length if it exists. | |
012353f7 | 1950 | |
9faec336 ILT |
1951 | NOTE: Mips documentation claims bitfield goes at the end of the |
1952 | AUX record, but the DECstation compiler emits it here. | |
1953 | (This would only make a difference for enum bitfields.) | |
1954 | ||
1955 | Also note: We use the last size given since gcc may emit 2 | |
1956 | for an enum bitfield. */ | |
1957 | ||
1958 | if (t->bitfield) | |
1959 | (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]); | |
1960 | ||
1961 | ||
1962 | /* Add tag information if needed. Structure, union, and enum | |
1963 | references add 2 aux symbols: a [file index, symbol index] | |
1964 | pointer to the structure type, and the current file index. */ | |
1965 | ||
1966 | if (t->basic_type == bt_Struct | |
1967 | || t->basic_type == bt_Union | |
1968 | || t->basic_type == bt_Enum) | |
1969 | { | |
1970 | register symint_t file_index = t->tag_ptr->ifd; | |
1971 | register localsym_t *sym = t->tag_ptr->sym; | |
1972 | register forward_t *forward_ref = allocate_forward (); | |
1973 | ||
1974 | if (sym != (localsym_t *) NULL) | |
1975 | { | |
1976 | forward_ref->next = sym->forward_ref; | |
1977 | sym->forward_ref = forward_ref; | |
1978 | } | |
1979 | else | |
1980 | { | |
1981 | forward_ref->next = t->tag_ptr->forward_ref; | |
1982 | t->tag_ptr->forward_ref = forward_ref; | |
1983 | } | |
1984 | ||
1985 | (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); | |
1986 | forward_ref->index_ptr | |
1987 | = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
1988 | ||
1989 | (void) add_aux_sym_symint (file_index); | |
1990 | forward_ref->ifd_ptr | |
1991 | = &vp->last->datum->aux[ vp->objects_last_page - 1]; | |
1992 | } | |
1993 | ||
1994 | /* Add information about array bounds if they exist. */ | |
1995 | for (i = 0; i < t->num_dims; i++) | |
1996 | { | |
1997 | (void) add_aux_sym_rndx (ST_RFDESCAPE, | |
1998 | cur_file_ptr->int_type); | |
1999 | ||
2000 | (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ | |
2001 | (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ | |
2002 | (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ | |
2003 | (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ | |
2004 | ? 0 | |
2005 | : (t->sizes[i] * 8) / t->dimensions[i]); | |
2006 | }; | |
2007 | ||
2008 | /* NOTE: Mips documentation claims that the bitfield width goes here. | |
2009 | But it needs to be emitted earlier. */ | |
2010 | ||
2011 | return ret; | |
2012 | } | |
2013 | \f | |
2014 | /* Add a tag to the tag table (unless it already exists). */ | |
2015 | ||
2016 | static tag_t * | |
2017 | get_tag (tag, sym, basic_type) | |
2018 | const char *tag; /* tag name */ | |
2019 | localsym_t *sym; /* tag start block */ | |
2020 | bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ | |
2021 | { | |
2022 | shash_t *hash_ptr; | |
2023 | const char *err; | |
2024 | tag_t *tag_ptr; | |
2025 | ||
2026 | if (cur_file_ptr == (efdr_t *) NULL) | |
2027 | as_fatal ("no current file pointer"); | |
2028 | ||
2029 | hash_ptr = (shash_t *) hash_find (tag_hash, tag); | |
2030 | ||
2031 | if (hash_ptr != (shash_t *) NULL | |
2032 | && hash_ptr->tag_ptr != (tag_t *) NULL) | |
2033 | { | |
2034 | tag_ptr = hash_ptr->tag_ptr; | |
2035 | if (sym != (localsym_t *) NULL) | |
2036 | { | |
2037 | tag_ptr->basic_type = basic_type; | |
2038 | tag_ptr->ifd = cur_file_ptr->file_index; | |
2039 | tag_ptr->sym = sym; | |
2040 | } | |
2041 | return tag_ptr; | |
2042 | } | |
2043 | ||
2044 | if (hash_ptr == (shash_t *) NULL) | |
2045 | { | |
2046 | char *perm; | |
2047 | ||
2048 | perm = xmalloc ((unsigned long) (strlen (tag) + 1)); | |
2049 | strcpy (perm, tag); | |
2050 | hash_ptr = allocate_shash (); | |
2051 | err = hash_insert (tag_hash, perm, (char *) hash_ptr); | |
2052 | if (err) | |
2053 | as_fatal ("Inserting \"%s\" into tag hash table: %s", | |
2054 | tag, err); | |
2055 | hash_ptr->string = perm; | |
2056 | } | |
2057 | ||
2058 | tag_ptr = allocate_tag (); | |
2059 | tag_ptr->forward_ref = (forward_t *) NULL; | |
2060 | tag_ptr->hash_ptr = hash_ptr; | |
2061 | tag_ptr->same_name = hash_ptr->tag_ptr; | |
2062 | tag_ptr->basic_type = basic_type; | |
2063 | tag_ptr->sym = sym; | |
2064 | tag_ptr->ifd = ((sym == (localsym_t *) NULL) | |
2065 | ? (symint_t) -1 | |
2066 | : cur_file_ptr->file_index); | |
2067 | tag_ptr->same_block = cur_tag_head->first_tag; | |
2068 | ||
2069 | cur_tag_head->first_tag = tag_ptr; | |
2070 | hash_ptr->tag_ptr = tag_ptr; | |
2071 | ||
2072 | return tag_ptr; | |
2073 | } | |
2074 | \f | |
2075 | /* Add an unknown {struct, union, enum} tag. */ | |
2076 | ||
2077 | static void | |
2078 | add_unknown_tag (ptag) | |
2079 | tag_t *ptag; /* pointer to tag information */ | |
2080 | { | |
2081 | shash_t *hash_ptr = ptag->hash_ptr; | |
2082 | char *name = hash_ptr->string; | |
2083 | localsym_t *sym; | |
2084 | forward_t **pf; | |
2085 | ||
2086 | #ifdef ECOFF_DEBUG | |
2087 | if (debug > 1) | |
2088 | { | |
2089 | char *agg_type = "{unknown aggregate type}"; | |
2090 | switch (ptag->basic_type) | |
2091 | { | |
2092 | case bt_Struct: agg_type = "struct"; break; | |
2093 | case bt_Union: agg_type = "union"; break; | |
2094 | case bt_Enum: agg_type = "enum"; break; | |
2095 | default: break; | |
2096 | } | |
2097 | ||
2098 | fprintf (stderr, "unknown %s %.*s found\n", agg_type, | |
2099 | hash_ptr->len, name_start); | |
2100 | } | |
2101 | #endif | |
2102 | ||
2103 | sym = add_ecoff_symbol (name, | |
2104 | st_Block, | |
2105 | sc_Info, | |
2106 | (symbolS *) NULL, | |
2107 | (symint_t) 0, | |
2108 | (symint_t) 0); | |
2109 | ||
2110 | (void) add_ecoff_symbol (name, | |
2111 | st_End, | |
2112 | sc_Info, | |
2113 | (symbolS *) NULL, | |
2114 | (symint_t) 0, | |
2115 | (symint_t) 0); | |
2116 | ||
2117 | for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) | |
2118 | ; | |
2119 | *pf = ptag->forward_ref; | |
2120 | } | |
2121 | \f | |
2122 | /* Add a procedure to the current file's list of procedures, and record | |
2123 | this is the current procedure. */ | |
2124 | ||
2125 | static void | |
2126 | add_procedure (func) | |
2127 | char *func; /* func name */ | |
2128 | { | |
2129 | register varray_t *vp; | |
2130 | register proc_t *new_proc_ptr; | |
2131 | ||
2132 | #ifdef ECOFF_DEBUG | |
2133 | if (debug) | |
2134 | fputc ('\n', stderr); | |
2135 | #endif | |
2136 | ||
2137 | if (cur_file_ptr == (efdr_t *) NULL) | |
2138 | as_fatal ("no current file pointer"); | |
2139 | ||
2140 | vp = &cur_file_ptr->procs; | |
2141 | ||
2142 | if (vp->objects_last_page == vp->objects_per_page) | |
2143 | add_varray_page (vp); | |
2144 | ||
2145 | cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++]; | |
2146 | ||
daad3bbf KH |
2147 | if (first_proc_ptr == (proc_t *) NULL) |
2148 | first_proc_ptr = new_proc_ptr; | |
2149 | ||
9faec336 ILT |
2150 | vp->num_allocated++; |
2151 | ||
2152 | new_proc_ptr->pdr.isym = -1; | |
2153 | new_proc_ptr->pdr.iline = -1; | |
2154 | new_proc_ptr->pdr.lnLow = -1; | |
2155 | new_proc_ptr->pdr.lnHigh = -1; | |
2156 | ||
2157 | /* Push the start of the function. */ | |
2158 | new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, | |
2159 | symbol_find_or_make (func), | |
2160 | (symint_t) 0, (symint_t) 0); | |
2161 | ||
2162 | ++proc_cnt; | |
2163 | ||
2164 | /* Fill in the linenos preceding the .ent, if any. */ | |
2165 | if (noproc_lineno != (lineno_list_t *) NULL) | |
2166 | { | |
2167 | lineno_list_t *l; | |
2168 | ||
2169 | for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) | |
2170 | l->proc = new_proc_ptr; | |
2171 | *last_lineno_ptr = noproc_lineno; | |
2172 | while (*last_lineno_ptr != NULL) | |
2173 | last_lineno_ptr = &(*last_lineno_ptr)->next; | |
2174 | noproc_lineno = (lineno_list_t *) NULL; | |
2175 | } | |
2176 | } | |
2177 | \f | |
2178 | /* Add a new filename, and set up all of the file relative | |
2179 | virtual arrays (strings, symbols, aux syms, etc.). Record | |
2180 | where the current file structure lives. */ | |
2181 | ||
2182 | static void | |
d7b2038f | 2183 | add_file (file_name, indx, fake) |
9faec336 ILT |
2184 | const char *file_name; /* file name */ |
2185 | int indx; | |
d7b2038f | 2186 | int fake; |
9faec336 ILT |
2187 | { |
2188 | register int first_ch; | |
2189 | register efdr_t *fil_ptr; | |
2190 | ||
2191 | #ifdef ECOFF_DEBUG | |
2192 | if (debug) | |
2193 | fprintf (stderr, "\tfile\t%.*s\n", len, file_start); | |
2194 | #endif | |
2195 | ||
2196 | /* If the file name is NULL, then no .file symbol appeared, and we | |
2197 | want to use the actual file name. */ | |
2198 | if (file_name == (const char *) NULL) | |
2199 | { | |
2200 | char *file; | |
2201 | ||
2202 | if (first_file != (efdr_t *) NULL) | |
2203 | as_fatal ("fake .file after real one"); | |
2204 | as_where (&file, (unsigned int *) NULL); | |
2205 | file_name = (const char *) file; | |
326d16ca | 2206 | |
3ffbc907 | 2207 | if (! symbol_table_frozen) |
326d16ca | 2208 | generate_asm_lineno = 1; |
9faec336 | 2209 | } |
daad3bbf | 2210 | else |
326d16ca | 2211 | generate_asm_lineno = 0; |
9faec336 ILT |
2212 | |
2213 | #ifndef NO_LISTING | |
2214 | if (listing) | |
2215 | listing_source_file (file_name); | |
2216 | #endif | |
2217 | ||
a2a1a548 ILT |
2218 | current_stabs_filename = file_name; |
2219 | ||
9faec336 ILT |
2220 | /* If we're creating stabs, then we don't actually make a new FDR. |
2221 | Instead, we just create a stabs symbol. */ | |
2222 | if (stabs_seen) | |
2223 | { | |
2224 | (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, | |
2225 | symbol_new ("L0\001", now_seg, | |
2226 | (valueT) frag_now_fix (), | |
2227 | frag_now), | |
2228 | 0, ECOFF_MARK_STAB (N_SOL)); | |
2229 | return; | |
2230 | } | |
2231 | ||
2232 | first_ch = *file_name; | |
2233 | ||
d7b2038f ILT |
2234 | /* ??? This is ifdefed out, because it results in incorrect line number |
2235 | debugging info when multiple .file pseudo-ops are merged into one file | |
2236 | descriptor. See for instance ecoff_build_lineno, which will | |
2237 | end up setting all file->fdr.* fields multiple times, resulting in | |
2238 | incorrect debug info. In order to make this work right, all line number | |
2239 | and symbol info for the same source file has to be adjacent in the object | |
2240 | file, so that a single file descriptor can be used to point to them. | |
2241 | This would require maintaining file specific lists of line numbers and | |
2242 | symbols for each file, so that they can be merged together (or output | |
2243 | together) when two .file pseudo-ops are merged into one file | |
2244 | descriptor. */ | |
2245 | ||
2246 | #if 0 | |
9faec336 ILT |
2247 | /* See if the file has already been created. */ |
2248 | for (fil_ptr = first_file; | |
2249 | fil_ptr != (efdr_t *) NULL; | |
2250 | fil_ptr = fil_ptr->next_file) | |
2251 | { | |
2252 | if (first_ch == fil_ptr->name[0] | |
2253 | && strcmp (file_name, fil_ptr->name) == 0) | |
2254 | { | |
2255 | cur_file_ptr = fil_ptr; | |
d7b2038f ILT |
2256 | if (! fake) |
2257 | cur_file_ptr->fake = 0; | |
9faec336 ILT |
2258 | break; |
2259 | } | |
2260 | } | |
d7b2038f ILT |
2261 | #else |
2262 | fil_ptr = (efdr_t *) NULL; | |
2263 | #endif | |
9faec336 ILT |
2264 | |
2265 | /* If this is a new file, create it. */ | |
2266 | if (fil_ptr == (efdr_t *) NULL) | |
2267 | { | |
2268 | if (file_desc.objects_last_page == file_desc.objects_per_page) | |
2269 | add_varray_page (&file_desc); | |
2270 | ||
2271 | fil_ptr = cur_file_ptr = | |
2272 | &file_desc.last->datum->file[file_desc.objects_last_page++]; | |
2273 | *fil_ptr = init_file; | |
2274 | ||
012353f7 | 2275 | fil_ptr->file_index = current_file_idx++; |
9faec336 ILT |
2276 | ++file_desc.num_allocated; |
2277 | ||
d7b2038f ILT |
2278 | fil_ptr->fake = fake; |
2279 | ||
9faec336 ILT |
2280 | /* Allocate the string hash table. */ |
2281 | fil_ptr->str_hash = hash_new (); | |
2282 | ||
2283 | /* Make sure 0 byte in string table is null */ | |
2284 | add_string (&fil_ptr->strings, | |
2285 | fil_ptr->str_hash, | |
2286 | "", | |
2287 | (shash_t **)0); | |
2288 | ||
2289 | if (strlen (file_name) > PAGE_USIZE - 2) | |
2290 | as_fatal ("Filename goes over one page boundary."); | |
2291 | ||
2292 | /* Push the start of the filename. We assume that the filename | |
2293 | will be stored at string offset 1. */ | |
2294 | (void) add_ecoff_symbol (file_name, st_File, sc_Text, | |
2295 | (symbolS *) NULL, | |
2296 | (symint_t) 0, (symint_t) 0); | |
2297 | fil_ptr->fdr.rss = 1; | |
2298 | fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; | |
2299 | ||
2300 | /* Update the linked list of file descriptors. */ | |
2301 | *last_file_ptr = fil_ptr; | |
2302 | last_file_ptr = &fil_ptr->next_file; | |
2303 | ||
2304 | /* Add void & int types to the file (void should be first to catch | |
2305 | errant 0's within the index fields). */ | |
2306 | fil_ptr->void_type = add_aux_sym_tir (&void_type_info, | |
2307 | hash_yes, | |
2308 | &cur_file_ptr->thash_head[0]); | |
2309 | ||
2310 | fil_ptr->int_type = add_aux_sym_tir (&int_type_info, | |
2311 | hash_yes, | |
2312 | &cur_file_ptr->thash_head[0]); | |
326d16ca KH |
2313 | /* gas used to have a bug that if the file does not have any |
2314 | symbol, it either will abort or will not build the file, | |
2315 | the following is to get around that problem. ---kung*/ | |
2316 | #if 0 | |
2317 | if (generate_asm_lineno) | |
daad3bbf | 2318 | { |
daad3bbf KH |
2319 | mark_stabs (0); |
2320 | (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, | |
3ffbc907 ILT |
2321 | symbol_new ("L0\001", now_seg, |
2322 | (valueT) frag_now_fix (), | |
2323 | frag_now), | |
2324 | 0, ECOFF_MARK_STAB (N_SO)); | |
2325 | (void) add_ecoff_symbol ("void:t1=1", st_Nil, sc_Nil, | |
2326 | (symbolS *) NULL, 0, | |
2327 | ECOFF_MARK_STAB (N_LSYM)); | |
daad3bbf | 2328 | } |
326d16ca | 2329 | #endif |
9faec336 ILT |
2330 | } |
2331 | } | |
2332 | \f | |
2333 | #ifdef ECOFF_DEBUG | |
2334 | ||
2335 | /* Convert storage class to string. */ | |
2336 | ||
2337 | static char * | |
2338 | sc_to_string(storage_class) | |
2339 | sc_t storage_class; | |
2340 | { | |
2341 | switch(storage_class) | |
2342 | { | |
2343 | case sc_Nil: return "Nil,"; | |
2344 | case sc_Text: return "Text,"; | |
2345 | case sc_Data: return "Data,"; | |
2346 | case sc_Bss: return "Bss,"; | |
2347 | case sc_Register: return "Register,"; | |
2348 | case sc_Abs: return "Abs,"; | |
2349 | case sc_Undefined: return "Undefined,"; | |
2350 | case sc_CdbLocal: return "CdbLocal,"; | |
2351 | case sc_Bits: return "Bits,"; | |
2352 | case sc_CdbSystem: return "CdbSystem,"; | |
2353 | case sc_RegImage: return "RegImage,"; | |
2354 | case sc_Info: return "Info,"; | |
2355 | case sc_UserStruct: return "UserStruct,"; | |
2356 | case sc_SData: return "SData,"; | |
2357 | case sc_SBss: return "SBss,"; | |
2358 | case sc_RData: return "RData,"; | |
2359 | case sc_Var: return "Var,"; | |
2360 | case sc_Common: return "Common,"; | |
2361 | case sc_SCommon: return "SCommon,"; | |
2362 | case sc_VarRegister: return "VarRegister,"; | |
2363 | case sc_Variant: return "Variant,"; | |
2364 | case sc_SUndefined: return "SUndefined,"; | |
2365 | case sc_Init: return "Init,"; | |
2366 | case sc_Max: return "Max,"; | |
2367 | } | |
2368 | ||
2369 | return "???,"; | |
2370 | } | |
2371 | ||
2372 | #endif /* DEBUG */ | |
2373 | \f | |
2374 | #ifdef ECOFF_DEBUG | |
2375 | ||
2376 | /* Convert symbol type to string. */ | |
2377 | ||
2378 | static char * | |
2379 | st_to_string(symbol_type) | |
2380 | st_t symbol_type; | |
2381 | { | |
2382 | switch(symbol_type) | |
2383 | { | |
2384 | case st_Nil: return "Nil,"; | |
2385 | case st_Global: return "Global,"; | |
2386 | case st_Static: return "Static,"; | |
2387 | case st_Param: return "Param,"; | |
2388 | case st_Local: return "Local,"; | |
2389 | case st_Label: return "Label,"; | |
2390 | case st_Proc: return "Proc,"; | |
2391 | case st_Block: return "Block,"; | |
2392 | case st_End: return "End,"; | |
2393 | case st_Member: return "Member,"; | |
2394 | case st_Typedef: return "Typedef,"; | |
2395 | case st_File: return "File,"; | |
2396 | case st_RegReloc: return "RegReloc,"; | |
2397 | case st_Forward: return "Forward,"; | |
2398 | case st_StaticProc: return "StaticProc,"; | |
2399 | case st_Constant: return "Constant,"; | |
2400 | case st_Str: return "String,"; | |
2401 | case st_Number: return "Number,"; | |
2402 | case st_Expr: return "Expr,"; | |
2403 | case st_Type: return "Type,"; | |
2404 | case st_Max: return "Max,"; | |
2405 | } | |
2406 | ||
2407 | return "???,"; | |
2408 | } | |
2409 | ||
2410 | #endif /* DEBUG */ | |
2411 | \f | |
2412 | /* Parse .begin directives which have a label as the first argument | |
2413 | which gives the location of the start of the block. */ | |
2414 | ||
2415 | void | |
2416 | ecoff_directive_begin (ignore) | |
2417 | int ignore; | |
2418 | { | |
2419 | char *name; | |
2420 | char name_end; | |
2421 | ||
2422 | if (cur_file_ptr == (efdr_t *) NULL) | |
2423 | { | |
2424 | as_warn (".begin directive without a preceding .file directive"); | |
2425 | demand_empty_rest_of_line (); | |
2426 | return; | |
2427 | } | |
2428 | ||
2429 | if (cur_proc_ptr == (proc_t *) NULL) | |
2430 | { | |
2431 | as_warn (".begin directive without a preceding .ent directive"); | |
2432 | demand_empty_rest_of_line (); | |
2433 | return; | |
2434 | } | |
012353f7 | 2435 | |
9faec336 ILT |
2436 | name = input_line_pointer; |
2437 | name_end = get_symbol_end (); | |
2438 | ||
2439 | (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, | |
2440 | symbol_find_or_make (name), | |
2441 | (symint_t) 0, (symint_t) 0); | |
2442 | ||
2443 | *input_line_pointer = name_end; | |
2444 | ||
2445 | /* The line number follows, but we don't use it. */ | |
2446 | (void) get_absolute_expression (); | |
2447 | demand_empty_rest_of_line (); | |
2448 | } | |
2449 | \f | |
2450 | /* Parse .bend directives which have a label as the first argument | |
2451 | which gives the location of the end of the block. */ | |
2452 | ||
2453 | void | |
2454 | ecoff_directive_bend (ignore) | |
2455 | int ignore; | |
2456 | { | |
2457 | char *name; | |
2458 | char name_end; | |
2459 | symbolS *endsym; | |
2460 | ||
2461 | if (cur_file_ptr == (efdr_t *) NULL) | |
2462 | { | |
2463 | as_warn (".bend directive without a preceding .file directive"); | |
2464 | demand_empty_rest_of_line (); | |
2465 | return; | |
2466 | } | |
2467 | ||
2468 | if (cur_proc_ptr == (proc_t *) NULL) | |
2469 | { | |
2470 | as_warn (".bend directive without a preceding .ent directive"); | |
2471 | demand_empty_rest_of_line (); | |
2472 | return; | |
2473 | } | |
2474 | ||
2475 | name = input_line_pointer; | |
2476 | name_end = get_symbol_end (); | |
2477 | ||
2478 | /* The value is the distance between the .bend directive and the | |
2479 | corresponding symbol. We fill in the offset when we write out | |
2480 | the symbol. */ | |
2481 | endsym = symbol_find (name); | |
2482 | if (endsym == (symbolS *) NULL) | |
2483 | as_warn (".bend directive names unknown symbol"); | |
2484 | else | |
2485 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, | |
2486 | (symint_t) 0, (symint_t) 0); | |
2487 | ||
2488 | *input_line_pointer = name_end; | |
2489 | ||
2490 | /* The line number follows, but we don't use it. */ | |
2491 | (void) get_absolute_expression (); | |
2492 | demand_empty_rest_of_line (); | |
2493 | } | |
2494 | \f | |
2495 | /* COFF debugging information is provided as a series of directives | |
2496 | (.def, .scl, etc.). We build up information as we read the | |
2497 | directives in the following static variables, and file it away when | |
2498 | we reach the .endef directive. */ | |
2499 | static char *coff_sym_name; | |
2500 | static type_info_t coff_type; | |
2501 | static sc_t coff_storage_class; | |
2502 | static st_t coff_symbol_typ; | |
2503 | static int coff_is_function; | |
2504 | static char *coff_tag; | |
2505 | static valueT coff_value; | |
2506 | symbolS *coff_sym_value; | |
2507 | static int coff_inside_enumeration; | |
2508 | ||
2509 | /* Handle a .def directive: start defining a symbol. */ | |
2510 | ||
2511 | void | |
2512 | ecoff_directive_def (ignore) | |
2513 | int ignore; | |
2514 | { | |
2515 | char *name; | |
2516 | char name_end; | |
2517 | ||
22ba90ce ILT |
2518 | ecoff_debugging_seen = 1; |
2519 | ||
9faec336 ILT |
2520 | SKIP_WHITESPACE (); |
2521 | ||
2522 | name = input_line_pointer; | |
2523 | name_end = get_symbol_end (); | |
2524 | ||
2525 | if (coff_sym_name != (char *) NULL) | |
2526 | as_warn (".def pseudo-op used inside of .def/.endef; ignored"); | |
2527 | else if (*name == '\0') | |
2528 | as_warn ("Empty symbol name in .def; ignored"); | |
2529 | else | |
2530 | { | |
2531 | if (coff_sym_name != (char *) NULL) | |
2532 | free (coff_sym_name); | |
2533 | if (coff_tag != (char *) NULL) | |
2534 | free (coff_tag); | |
2535 | coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1)); | |
2536 | strcpy (coff_sym_name, name); | |
2537 | coff_type = type_info_init; | |
2538 | coff_storage_class = sc_Nil; | |
2539 | coff_symbol_typ = st_Nil; | |
2540 | coff_is_function = 0; | |
2541 | coff_tag = (char *) NULL; | |
2542 | coff_value = 0; | |
2543 | coff_sym_value = (symbolS *) NULL; | |
2544 | } | |
2545 | ||
2546 | *input_line_pointer = name_end; | |
2547 | ||
2548 | demand_empty_rest_of_line (); | |
2549 | } | |
2550 | ||
2551 | /* Handle a .dim directive, used to give dimensions for an array. The | |
2552 | arguments are comma separated numbers. mips-tfile assumes that | |
2553 | there will not be more than 6 dimensions, and gdb won't read any | |
2554 | more than that anyhow, so I will also make that assumption. */ | |
2555 | ||
2556 | void | |
2557 | ecoff_directive_dim (ignore) | |
2558 | int ignore; | |
2559 | { | |
2560 | int dimens[N_TQ]; | |
2561 | int i; | |
2562 | ||
2563 | if (coff_sym_name == (char *) NULL) | |
2564 | { | |
2565 | as_warn (".dim pseudo-op used outside of .def/.endef; ignored"); | |
2566 | demand_empty_rest_of_line (); | |
2567 | return; | |
2568 | } | |
2569 | ||
2570 | for (i = 0; i < N_TQ; i++) | |
2571 | { | |
2572 | SKIP_WHITESPACE (); | |
2573 | dimens[i] = get_absolute_expression (); | |
2574 | if (*input_line_pointer == ',') | |
2575 | ++input_line_pointer; | |
2576 | else | |
2577 | { | |
2578 | if (*input_line_pointer != '\n' | |
2579 | && *input_line_pointer != ';') | |
2580 | as_warn ("Badly formed .dim directive"); | |
2581 | break; | |
2582 | } | |
2583 | } | |
2584 | ||
2585 | if (i == N_TQ) | |
2586 | --i; | |
2587 | ||
2588 | /* The dimensions are stored away in reverse order. */ | |
2589 | for (; i >= 0; i--) | |
2590 | { | |
2591 | if (coff_type.num_dims >= N_TQ) | |
2592 | { | |
2593 | as_warn ("Too many .dim entries"); | |
2594 | break; | |
2595 | } | |
2596 | coff_type.dimensions[coff_type.num_dims] = dimens[i]; | |
2597 | ++coff_type.num_dims; | |
2598 | } | |
2599 | ||
2600 | demand_empty_rest_of_line (); | |
2601 | } | |
2602 | ||
2603 | /* Handle a .scl directive, which sets the COFF storage class of the | |
2604 | symbol. */ | |
2605 | ||
2606 | void | |
2607 | ecoff_directive_scl (ignore) | |
2608 | int ignore; | |
2609 | { | |
2610 | long val; | |
2611 | ||
2612 | if (coff_sym_name == (char *) NULL) | |
2613 | { | |
2614 | as_warn (".scl pseudo-op used outside of .def/.endef; ignored"); | |
2615 | demand_empty_rest_of_line (); | |
2616 | return; | |
2617 | } | |
2618 | ||
2619 | val = get_absolute_expression (); | |
2620 | ||
2621 | coff_symbol_typ = map_coff_sym_type[val]; | |
2622 | coff_storage_class = map_coff_storage[val]; | |
2623 | ||
2624 | demand_empty_rest_of_line (); | |
2625 | } | |
2626 | ||
2627 | /* Handle a .size directive. For some reason mips-tfile.c thinks that | |
2628 | .size can have multiple arguments. We humor it, although gcc will | |
2629 | never generate more than one argument. */ | |
2630 | ||
2631 | void | |
2632 | ecoff_directive_size (ignore) | |
2633 | int ignore; | |
2634 | { | |
2635 | int sizes[N_TQ]; | |
2636 | int i; | |
2637 | ||
2638 | if (coff_sym_name == (char *) NULL) | |
2639 | { | |
2640 | as_warn (".size pseudo-op used outside of .def/.endef; ignored"); | |
2641 | demand_empty_rest_of_line (); | |
2642 | return; | |
2643 | } | |
2644 | ||
2645 | for (i = 0; i < N_TQ; i++) | |
2646 | { | |
2647 | SKIP_WHITESPACE (); | |
2648 | sizes[i] = get_absolute_expression (); | |
2649 | if (*input_line_pointer == ',') | |
2650 | ++input_line_pointer; | |
2651 | else | |
2652 | { | |
2653 | if (*input_line_pointer != '\n' | |
2654 | && *input_line_pointer != ';') | |
2655 | as_warn ("Badly formed .size directive"); | |
2656 | break; | |
2657 | } | |
2658 | } | |
2659 | ||
2660 | if (i == N_TQ) | |
2661 | --i; | |
2662 | ||
2663 | /* The sizes are stored away in reverse order. */ | |
2664 | for (; i >= 0; i--) | |
2665 | { | |
2666 | if (coff_type.num_sizes >= N_TQ) | |
2667 | { | |
2668 | as_warn ("Too many .size entries"); | |
2669 | break; | |
2670 | } | |
2671 | coff_type.sizes[coff_type.num_sizes] = sizes[i]; | |
2672 | ++coff_type.num_sizes; | |
2673 | } | |
2674 | ||
2675 | demand_empty_rest_of_line (); | |
2676 | } | |
2677 | ||
2678 | /* Handle the .type directive, which gives the COFF type of the | |
2679 | symbol. */ | |
2680 | ||
2681 | void | |
2682 | ecoff_directive_type (ignore) | |
2683 | int ignore; | |
2684 | { | |
2685 | long val; | |
2686 | tq_t *tq_ptr; | |
2687 | tq_t *tq_shft; | |
2688 | ||
2689 | if (coff_sym_name == (char *) NULL) | |
2690 | { | |
2691 | as_warn (".type pseudo-op used outside of .def/.endef; ignored"); | |
2692 | demand_empty_rest_of_line (); | |
2693 | return; | |
2694 | } | |
2695 | ||
2696 | val = get_absolute_expression (); | |
2697 | ||
2698 | coff_type.orig_type = BTYPE (val); | |
2699 | coff_type.basic_type = map_coff_types[coff_type.orig_type]; | |
2700 | ||
2701 | tq_ptr = &coff_type.type_qualifiers[N_TQ]; | |
2702 | while (val &~ N_BTMASK) | |
2703 | { | |
2704 | if (tq_ptr == &coff_type.type_qualifiers[0]) | |
2705 | { | |
22ba90ce ILT |
2706 | /* FIXME: We could handle this by setting the continued bit. |
2707 | There would still be a limit: the .type argument can not | |
2708 | be infinite. */ | |
2709 | as_warn ("The type of %s is too complex; it will be simplified", | |
2710 | coff_sym_name); | |
9faec336 ILT |
2711 | break; |
2712 | } | |
2713 | if (ISPTR (val)) | |
2714 | *--tq_ptr = tq_Ptr; | |
2715 | else if (ISFCN (val)) | |
2716 | *--tq_ptr = tq_Proc; | |
2717 | else if (ISARY (val)) | |
2718 | *--tq_ptr = tq_Array; | |
2719 | else | |
2720 | as_fatal ("Unrecognized .type argument"); | |
2721 | ||
2722 | val = DECREF (val); | |
2723 | } | |
2724 | ||
2725 | tq_shft = &coff_type.type_qualifiers[0]; | |
2726 | while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) | |
2727 | *tq_shft++ = *tq_ptr++; | |
2728 | ||
2729 | if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) | |
2730 | { | |
2731 | /* If this is a function, ignore it, so that we don't get two | |
2732 | entries (one from the .ent, and one for the .def that | |
2733 | precedes it). Save the type information so that the end | |
2734 | block can properly add it after the begin block index. For | |
2735 | MIPS knows what reason, we must strip off the function type | |
2736 | at this point. */ | |
2737 | coff_is_function = 1; | |
2738 | tq_shft[-1] = tq_Nil; | |
2739 | } | |
2740 | ||
2741 | while (tq_shft != &coff_type.type_qualifiers[N_TQ]) | |
2742 | *tq_shft++ = tq_Nil; | |
2743 | ||
2744 | demand_empty_rest_of_line (); | |
2745 | } | |
2746 | ||
2747 | /* Handle the .tag directive, which gives the name of a structure, | |
2748 | union or enum. */ | |
2749 | ||
2750 | void | |
2751 | ecoff_directive_tag (ignore) | |
2752 | int ignore; | |
2753 | { | |
2754 | char *name; | |
2755 | char name_end; | |
2756 | ||
2757 | if (coff_sym_name == (char *) NULL) | |
2758 | { | |
2759 | as_warn (".tag pseudo-op used outside of .def/.endef; ignored"); | |
2760 | demand_empty_rest_of_line (); | |
2761 | return; | |
2762 | } | |
2763 | ||
2764 | name = input_line_pointer; | |
2765 | name_end = get_symbol_end (); | |
2766 | ||
2767 | coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1)); | |
2768 | strcpy (coff_tag, name); | |
2769 | ||
2770 | *input_line_pointer = name_end; | |
2771 | ||
2772 | demand_empty_rest_of_line (); | |
2773 | } | |
2774 | ||
2775 | /* Handle the .val directive, which gives the value of the symbol. It | |
2776 | may be the name of a static or global symbol. */ | |
2777 | ||
2778 | void | |
2779 | ecoff_directive_val (ignore) | |
2780 | int ignore; | |
2781 | { | |
2782 | if (coff_sym_name == (char *) NULL) | |
2783 | { | |
2784 | as_warn (".val pseudo-op used outside of .def/.endef; ignored"); | |
2785 | demand_empty_rest_of_line (); | |
2786 | return; | |
2787 | } | |
2788 | ||
2789 | if (! is_name_beginner ((unsigned char) *input_line_pointer)) | |
2790 | coff_value = get_absolute_expression (); | |
2791 | else | |
2792 | { | |
2793 | char *name; | |
2794 | char name_end; | |
2795 | ||
2796 | name = input_line_pointer; | |
2797 | name_end = get_symbol_end (); | |
2798 | ||
2799 | if (strcmp (name, ".") == 0) | |
2800 | as_warn ("`.val .' not supported"); | |
2801 | else | |
2802 | coff_sym_value = symbol_find_or_make (name); | |
2803 | ||
2804 | *input_line_pointer = name_end; | |
2805 | ||
2806 | /* FIXME: gcc can generate address expressions here in unusual | |
2807 | cases (search for "obscure" in sdbout.c), although this is | |
2808 | very unlikely for a MIPS chip. */ | |
2809 | } | |
2810 | ||
2811 | demand_empty_rest_of_line (); | |
2812 | } | |
2813 | ||
2814 | /* Handle the .endef directive, which terminates processing of COFF | |
2815 | debugging information for a symbol. */ | |
2816 | ||
2817 | void | |
2818 | ecoff_directive_endef (ignore) | |
2819 | int ignore; | |
2820 | { | |
2821 | char *name; | |
2822 | symint_t indx; | |
2823 | localsym_t *sym; | |
2824 | ||
2825 | demand_empty_rest_of_line (); | |
2826 | ||
2827 | if (coff_sym_name == (char *) NULL) | |
2828 | { | |
2829 | as_warn (".endef pseudo-op used before .def; ignored"); | |
2830 | return; | |
2831 | } | |
2832 | ||
2833 | name = coff_sym_name; | |
2834 | coff_sym_name = (char *) NULL; | |
2835 | ||
2836 | /* If the symbol is a static or external, we have already gotten the | |
2837 | appropriate type and class, so make sure we don't override those | |
2838 | values. This is needed because there are some type and classes | |
2839 | that are not in COFF, such as short data, etc. */ | |
2840 | if (coff_sym_value != (symbolS *) NULL) | |
2841 | { | |
2842 | coff_symbol_typ = st_Nil; | |
2843 | coff_storage_class = sc_Nil; | |
2844 | } | |
2845 | ||
2846 | coff_type.extra_sizes = coff_tag != (char *) NULL; | |
2847 | if (coff_type.num_dims > 0) | |
2848 | { | |
2849 | int diff = coff_type.num_dims - coff_type.num_sizes; | |
2850 | int i = coff_type.num_dims - 1; | |
2851 | int j; | |
2852 | ||
2853 | if (coff_type.num_sizes != 1 || diff < 0) | |
2854 | { | |
2855 | as_warn ("Bad COFF debugging info"); | |
2856 | return; | |
2857 | } | |
2858 | ||
2859 | /* If this is an array, make sure the same number of dimensions | |
2860 | and sizes were passed, creating extra sizes for multiply | |
2861 | dimensioned arrays if not passed. */ | |
2862 | coff_type.extra_sizes = 0; | |
2863 | if (diff) | |
2864 | { | |
2865 | j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; | |
2866 | while (j >= 0) | |
2867 | { | |
2868 | coff_type.sizes[j] = (((j - diff) >= 0) | |
2869 | ? coff_type.sizes[j - diff] | |
2870 | : 0); | |
2871 | j--; | |
2872 | } | |
2873 | ||
2874 | coff_type.num_sizes = i + 1; | |
2875 | for (i--; i >= 0; i--) | |
2876 | coff_type.sizes[i] = (coff_type.sizes[i + 1] | |
2877 | / coff_type.dimensions[i + 1]); | |
2878 | } | |
2879 | } | |
2880 | else if (coff_symbol_typ == st_Member | |
2881 | && coff_type.num_sizes - coff_type.extra_sizes == 1) | |
2882 | { | |
2883 | /* Is this a bitfield? This is indicated by a structure memeber | |
2884 | having a size field that isn't an array. */ | |
2885 | coff_type.bitfield = 1; | |
2886 | } | |
2887 | ||
2888 | /* Except for enumeration members & begin/ending of scopes, put the | |
2889 | type word in the aux. symbol table. */ | |
2890 | if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) | |
2891 | indx = 0; | |
2892 | else if (coff_inside_enumeration) | |
2893 | indx = cur_file_ptr->void_type; | |
2894 | else | |
2895 | { | |
2896 | if (coff_type.basic_type == bt_Struct | |
2897 | || coff_type.basic_type == bt_Union | |
2898 | || coff_type.basic_type == bt_Enum) | |
2899 | { | |
2900 | if (coff_tag == (char *) NULL) | |
2901 | { | |
2902 | as_warn ("No tag specified for %s", name); | |
2903 | return; | |
2904 | } | |
2905 | ||
2906 | coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, | |
2907 | coff_type.basic_type); | |
2908 | } | |
2909 | ||
2910 | if (coff_is_function) | |
2911 | { | |
2912 | last_func_type_info = coff_type; | |
2913 | last_func_sym_value = coff_sym_value; | |
2914 | return; | |
2915 | } | |
2916 | ||
2917 | indx = add_aux_sym_tir (&coff_type, | |
2918 | hash_yes, | |
2919 | &cur_file_ptr->thash_head[0]); | |
2920 | } | |
2921 | ||
2922 | /* Do any last minute adjustments that are necessary. */ | |
2923 | switch (coff_symbol_typ) | |
2924 | { | |
2925 | default: | |
2926 | break; | |
2927 | ||
2928 | /* For the beginning of structs, unions, and enumerations, the | |
2929 | size info needs to be passed in the value field. */ | |
2930 | case st_Block: | |
2931 | if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes | |
2932 | != 1) | |
2933 | { | |
2934 | as_warn ("Bad COFF debugging information"); | |
2935 | return; | |
2936 | } | |
2937 | else | |
2938 | coff_value = coff_type.sizes[0]; | |
2939 | ||
2940 | coff_inside_enumeration = (coff_type.orig_type == T_ENUM); | |
2941 | break; | |
2942 | ||
2943 | /* For the end of structs, unions, and enumerations, omit the | |
2944 | name which is always ".eos". This needs to be done last, so | |
2945 | that any error reporting above gives the correct name. */ | |
2946 | case st_End: | |
2947 | free (name); | |
2948 | name = (char *) NULL; | |
2949 | coff_value = 0; | |
2950 | coff_inside_enumeration = 0; | |
2951 | break; | |
2952 | ||
2953 | /* Members of structures and unions that aren't bitfields, need | |
2954 | to adjust the value from a byte offset to a bit offset. | |
2955 | Members of enumerations do not have the value adjusted, and | |
2956 | can be distinguished by indx == indexNil. For enumerations, | |
2957 | update the maximum enumeration value. */ | |
2958 | case st_Member: | |
2959 | if (! coff_type.bitfield && ! coff_inside_enumeration) | |
2960 | coff_value *= 8; | |
2961 | ||
2962 | break; | |
2963 | } | |
2964 | ||
2965 | /* Add the symbol. */ | |
2966 | sym = add_ecoff_symbol (name, | |
2967 | coff_symbol_typ, | |
2968 | coff_storage_class, | |
2969 | coff_sym_value, | |
2970 | (symint_t) coff_value, | |
2971 | indx); | |
2972 | ||
2973 | /* deal with struct, union, and enum tags. */ | |
2974 | if (coff_symbol_typ == st_Block) | |
2975 | { | |
2976 | /* Create or update the tag information. */ | |
2977 | tag_t *tag_ptr = get_tag (name, | |
2978 | sym, | |
2979 | coff_type.basic_type); | |
2980 | forward_t **pf; | |
2981 | ||
2982 | /* Remember any forward references. */ | |
2983 | for (pf = &sym->forward_ref; | |
2984 | *pf != (forward_t *) NULL; | |
2985 | pf = &(*pf)->next) | |
2986 | ; | |
2987 | *pf = tag_ptr->forward_ref; | |
2988 | tag_ptr->forward_ref = (forward_t *) NULL; | |
2989 | } | |
2990 | } | |
2991 | \f | |
2992 | /* Parse .end directives. */ | |
2993 | ||
2994 | void | |
2995 | ecoff_directive_end (ignore) | |
2996 | int ignore; | |
2997 | { | |
2998 | char *name; | |
2999 | char name_end; | |
3000 | register int ch; | |
3001 | symbolS *ent; | |
3002 | ||
3003 | if (cur_file_ptr == (efdr_t *) NULL) | |
3004 | { | |
3005 | as_warn (".end directive without a preceding .file directive"); | |
3006 | demand_empty_rest_of_line (); | |
3007 | return; | |
3008 | } | |
3009 | ||
3010 | if (cur_proc_ptr == (proc_t *) NULL) | |
3011 | { | |
3012 | as_warn (".end directive without a preceding .ent directive"); | |
3013 | demand_empty_rest_of_line (); | |
3014 | return; | |
3015 | } | |
3016 | ||
3017 | name = input_line_pointer; | |
3018 | name_end = get_symbol_end (); | |
012353f7 | 3019 | |
9faec336 ILT |
3020 | ch = *name; |
3021 | if (! is_name_beginner (ch)) | |
3022 | { | |
3023 | as_warn (".end directive has no name"); | |
3024 | *input_line_pointer = name_end; | |
3025 | demand_empty_rest_of_line (); | |
3026 | return; | |
3027 | } | |
3028 | ||
3029 | /* The value is the distance between the .end directive and the | |
3030 | corresponding symbol. We create a fake symbol to hold the | |
3031 | current location, and put in the offset when we write out the | |
3032 | symbol. */ | |
3033 | ent = symbol_find (name); | |
3034 | if (ent == (symbolS *) NULL) | |
3035 | as_warn (".end directive names unknown symbol"); | |
3036 | else | |
daad3bbf KH |
3037 | { |
3038 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, | |
9faec336 ILT |
3039 | symbol_new ("L0\001", now_seg, |
3040 | (valueT) frag_now_fix (), | |
3041 | frag_now), | |
3042 | (symint_t) 0, (symint_t) 0); | |
326d16ca KH |
3043 | |
3044 | if (stabs_seen && generate_asm_lineno) | |
daad3bbf KH |
3045 | { |
3046 | char *n; | |
3047 | ||
3048 | n = xmalloc (strlen (name) + 4); | |
3049 | strcpy (n, name); | |
3050 | strcat (n, ":F1"); | |
3051 | (void) add_ecoff_symbol ((const char *) n, stGlobal, scText, | |
3052 | ent, 0, ECOFF_MARK_STAB (N_FUN)); | |
3053 | } | |
3054 | } | |
9faec336 ILT |
3055 | |
3056 | cur_proc_ptr = (proc_t *) NULL; | |
3057 | ||
3058 | *input_line_pointer = name_end; | |
3059 | demand_empty_rest_of_line (); | |
3060 | } | |
3061 | \f | |
3062 | /* Parse .ent directives. */ | |
3063 | ||
3064 | void | |
3065 | ecoff_directive_ent (ignore) | |
3066 | int ignore; | |
3067 | { | |
3068 | char *name; | |
3069 | char name_end; | |
3070 | register int ch; | |
3071 | ||
3072 | if (cur_file_ptr == (efdr_t *) NULL) | |
d7b2038f | 3073 | add_file ((const char *) NULL, 0, 1); |
9faec336 ILT |
3074 | |
3075 | if (cur_proc_ptr != (proc_t *) NULL) | |
3076 | { | |
3077 | as_warn ("second .ent directive found before .end directive"); | |
3078 | demand_empty_rest_of_line (); | |
3079 | return; | |
3080 | } | |
3081 | ||
3082 | name = input_line_pointer; | |
3083 | name_end = get_symbol_end (); | |
3084 | ||
3085 | ch = *name; | |
3086 | if (! is_name_beginner (ch)) | |
3087 | { | |
3088 | as_warn (".ent directive has no name"); | |
3089 | *input_line_pointer = name_end; | |
3090 | demand_empty_rest_of_line (); | |
3091 | return; | |
3092 | } | |
3093 | ||
3094 | add_procedure (name); | |
3095 | ||
3096 | *input_line_pointer = name_end; | |
3097 | ||
3098 | /* The .ent directive is sometimes followed by a number. I'm not | |
3099 | really sure what the number means. I don't see any way to store | |
3100 | the information in the PDR. The Irix 4 assembler seems to ignore | |
3101 | the information. */ | |
3102 | SKIP_WHITESPACE (); | |
3103 | if (*input_line_pointer == ',') | |
3104 | { | |
3105 | ++input_line_pointer; | |
3106 | SKIP_WHITESPACE (); | |
3107 | } | |
3108 | if (isdigit (*input_line_pointer) || *input_line_pointer == '-') | |
3109 | (void) get_absolute_expression (); | |
3110 | ||
3111 | demand_empty_rest_of_line (); | |
3112 | } | |
3113 | \f | |
d7b2038f ILT |
3114 | /* Parse .extern directives. */ |
3115 | ||
3116 | void | |
3117 | ecoff_directive_extern (ignore) | |
3118 | int ignore; | |
3119 | { | |
3120 | char *name; | |
3121 | int c; | |
3122 | symbolS *symbolp; | |
3123 | valueT size; | |
3124 | ||
3125 | name = input_line_pointer; | |
3126 | c = get_symbol_end (); | |
3127 | symbolp = symbol_find_or_make (name); | |
3128 | *input_line_pointer = c; | |
3129 | ||
3130 | S_SET_EXTERNAL (symbolp); | |
3131 | ||
3132 | if (*input_line_pointer == ',') | |
3133 | ++input_line_pointer; | |
3134 | size = get_absolute_expression (); | |
3135 | ||
3136 | symbolp->ecoff_extern_size = size; | |
3137 | } | |
3138 | \f | |
9faec336 ILT |
3139 | /* Parse .file directives. */ |
3140 | ||
3141 | void | |
3142 | ecoff_directive_file (ignore) | |
3143 | int ignore; | |
3144 | { | |
3145 | int indx; | |
3146 | char *name; | |
3147 | int len; | |
3148 | ||
3149 | if (cur_proc_ptr != (proc_t *) NULL) | |
3150 | { | |
3151 | as_warn ("No way to handle .file within .ent/.end section"); | |
3152 | demand_empty_rest_of_line (); | |
3153 | return; | |
3154 | } | |
3155 | ||
3156 | indx = (int) get_absolute_expression (); | |
3157 | ||
3158 | /* FIXME: we don't have to save the name here. */ | |
3159 | name = demand_copy_C_string (&len); | |
3160 | ||
d7b2038f | 3161 | add_file (name, indx - 1, 0); |
9faec336 ILT |
3162 | |
3163 | demand_empty_rest_of_line (); | |
3164 | } | |
3165 | \f | |
3166 | /* Parse .fmask directives. */ | |
3167 | ||
3168 | void | |
3169 | ecoff_directive_fmask (ignore) | |
3170 | int ignore; | |
3171 | { | |
3172 | long val; | |
3173 | ||
3174 | if (cur_proc_ptr == (proc_t *) NULL) | |
3175 | { | |
3176 | as_warn (".fmask outside of .ent"); | |
3177 | demand_empty_rest_of_line (); | |
3178 | return; | |
3179 | } | |
3180 | ||
3181 | if (get_absolute_expression_and_terminator (&val) != ',') | |
3182 | { | |
3183 | as_warn ("Bad .fmask directive"); | |
3184 | --input_line_pointer; | |
3185 | demand_empty_rest_of_line (); | |
3186 | return; | |
3187 | } | |
3188 | ||
3189 | cur_proc_ptr->pdr.fregmask = val; | |
3190 | cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); | |
3191 | ||
3192 | demand_empty_rest_of_line (); | |
3193 | } | |
3194 | \f | |
3195 | /* Parse .frame directives. */ | |
3196 | ||
3197 | void | |
3198 | ecoff_directive_frame (ignore) | |
3199 | int ignore; | |
3200 | { | |
3201 | long val; | |
3202 | ||
3203 | if (cur_proc_ptr == (proc_t *) NULL) | |
3204 | { | |
3205 | as_warn (".frame outside of .ent"); | |
3206 | demand_empty_rest_of_line (); | |
3207 | return; | |
3208 | } | |
3209 | ||
3210 | cur_proc_ptr->pdr.framereg = tc_get_register (1); | |
3211 | ||
3212 | SKIP_WHITESPACE (); | |
3213 | if (*input_line_pointer++ != ',' | |
3214 | || get_absolute_expression_and_terminator (&val) != ',') | |
3215 | { | |
3216 | as_warn ("Bad .frame directive"); | |
3217 | --input_line_pointer; | |
3218 | demand_empty_rest_of_line (); | |
3219 | return; | |
3220 | } | |
3221 | ||
3222 | cur_proc_ptr->pdr.frameoffset = val; | |
3223 | ||
3224 | cur_proc_ptr->pdr.pcreg = tc_get_register (0); | |
3225 | ||
012353f7 KR |
3226 | #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according |
3227 | to Sandro. I don't yet know where this value should be stored, if | |
3228 | anywhere. */ | |
9faec336 | 3229 | demand_empty_rest_of_line (); |
012353f7 KR |
3230 | #else |
3231 | s_ignore (42); | |
3232 | #endif | |
9faec336 ILT |
3233 | } |
3234 | \f | |
3235 | /* Parse .mask directives. */ | |
3236 | ||
3237 | void | |
3238 | ecoff_directive_mask (ignore) | |
3239 | int ignore; | |
3240 | { | |
3241 | long val; | |
3242 | ||
3243 | if (cur_proc_ptr == (proc_t *) NULL) | |
3244 | { | |
3245 | as_warn (".mask outside of .ent"); | |
3246 | demand_empty_rest_of_line (); | |
3247 | return; | |
3248 | } | |
3249 | ||
3250 | if (get_absolute_expression_and_terminator (&val) != ',') | |
3251 | { | |
3252 | as_warn ("Bad .mask directive"); | |
3253 | --input_line_pointer; | |
3254 | demand_empty_rest_of_line (); | |
3255 | return; | |
3256 | } | |
3257 | ||
3258 | cur_proc_ptr->pdr.regmask = val; | |
3259 | cur_proc_ptr->pdr.regoffset = get_absolute_expression (); | |
3260 | ||
3261 | demand_empty_rest_of_line (); | |
3262 | } | |
3263 | \f | |
3264 | /* Parse .loc directives. */ | |
3265 | ||
3266 | void | |
3267 | ecoff_directive_loc (ignore) | |
3268 | int ignore; | |
3269 | { | |
3270 | lineno_list_t *list; | |
3271 | symint_t lineno; | |
3272 | ||
3273 | if (cur_file_ptr == (efdr_t *) NULL) | |
3274 | { | |
3275 | as_warn (".loc before .file"); | |
3276 | demand_empty_rest_of_line (); | |
3277 | return; | |
3278 | } | |
3279 | ||
3280 | if (now_seg != text_section) | |
3281 | { | |
3282 | as_warn (".loc outside of .text"); | |
3283 | demand_empty_rest_of_line (); | |
3284 | return; | |
3285 | } | |
3286 | ||
3287 | /* Skip the file number. */ | |
3288 | SKIP_WHITESPACE (); | |
3289 | get_absolute_expression (); | |
3290 | SKIP_WHITESPACE (); | |
3291 | ||
3292 | lineno = get_absolute_expression (); | |
3293 | ||
3294 | #ifndef NO_LISTING | |
3295 | if (listing) | |
3296 | listing_source_line (lineno); | |
3297 | #endif | |
3298 | ||
3299 | /* If we're building stabs, then output a special label rather than | |
3300 | ECOFF line number info. */ | |
3301 | if (stabs_seen) | |
3302 | { | |
3303 | (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, | |
3304 | symbol_new ("L0\001", now_seg, | |
3305 | (valueT) frag_now_fix (), | |
3306 | frag_now), | |
3307 | 0, lineno); | |
3308 | return; | |
3309 | } | |
3310 | ||
3311 | list = allocate_lineno_list (); | |
3312 | ||
3313 | list->next = (lineno_list_t *) NULL; | |
3314 | list->file = cur_file_ptr; | |
3315 | list->proc = cur_proc_ptr; | |
3316 | list->frag = frag_now; | |
3317 | list->paddr = frag_now_fix (); | |
3318 | list->lineno = lineno; | |
3319 | ||
3320 | /* A .loc directive will sometimes appear before a .ent directive, | |
3321 | which means that cur_proc_ptr will be NULL here. Arrange to | |
3322 | patch this up. */ | |
3323 | if (cur_proc_ptr == (proc_t *) NULL) | |
3324 | { | |
3325 | lineno_list_t **pl; | |
3326 | ||
3327 | pl = &noproc_lineno; | |
3328 | while (*pl != (lineno_list_t *) NULL) | |
3329 | pl = &(*pl)->next; | |
3330 | *pl = list; | |
3331 | } | |
3332 | else | |
3333 | { | |
3334 | *last_lineno_ptr = list; | |
3335 | last_lineno_ptr = &list->next; | |
3336 | } | |
3337 | } | |
3338 | \f | |
3339 | /* Make sure the @stabs symbol is emitted. */ | |
3340 | ||
3341 | static void | |
3342 | mark_stabs (ignore) | |
3343 | int ignore; | |
3344 | { | |
3345 | if (! stabs_seen) | |
3346 | { | |
3347 | /* Add a dummy @stabs dymbol. */ | |
3348 | stabs_seen = 1; | |
3349 | (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo, | |
3350 | (symbolS *) NULL, | |
3351 | (symint_t) -1, ECOFF_MARK_STAB (0)); | |
3352 | } | |
3353 | } | |
3354 | \f | |
d7b2038f ILT |
3355 | /* Parse .weakext directives. */ |
3356 | ||
3357 | void | |
3358 | ecoff_directive_weakext (ignore) | |
3359 | int ignore; | |
3360 | { | |
3361 | char *name; | |
3362 | int c; | |
3363 | symbolS *symbolP; | |
3364 | expressionS exp; | |
3365 | ||
3366 | name = input_line_pointer; | |
3367 | c = get_symbol_end (); | |
3368 | symbolP = symbol_find_or_make (name); | |
3369 | *input_line_pointer = c; | |
3370 | ||
3371 | SKIP_WHITESPACE (); | |
3372 | ||
3373 | if (c == ',') | |
3374 | { | |
3375 | if (S_IS_DEFINED (symbolP)) | |
3376 | { | |
3377 | as_bad ("Ignoring attempt to redefine symbol `%s'.", | |
3378 | S_GET_NAME (symbolP)); | |
3379 | ignore_rest_of_line (); | |
3380 | return; | |
3381 | } | |
3382 | ||
3383 | ++input_line_pointer; | |
3384 | SKIP_WHITESPACE (); | |
3385 | if (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3386 | { | |
3387 | expression (&exp); | |
3388 | if (exp.X_op != O_symbol) | |
3389 | { | |
3390 | as_bad ("bad .weakext directive"); | |
3391 | ignore_rest_of_line(); | |
3392 | return; | |
3393 | } | |
3394 | symbolP->sy_value = exp; | |
3395 | } | |
3396 | } | |
3397 | ||
3398 | S_SET_WEAK (symbolP); | |
3399 | ||
3400 | demand_empty_rest_of_line (); | |
3401 | } | |
3402 | \f | |
9faec336 ILT |
3403 | /* Handle .stabs directives. The actual parsing routine is done by a |
3404 | generic routine. This routine is called via OBJ_PROCESS_STAB. | |
3405 | When this is called, input_line_pointer will be pointing at the | |
3406 | value field of the stab. | |
3407 | ||
3408 | .stabs directives have five fields: | |
3409 | "string" a string, encoding the type information. | |
3410 | code a numeric code, defined in <stab.h> | |
3411 | 0 a zero | |
3412 | desc a zero or line number | |
3413 | value a numeric value or an address. | |
3414 | ||
3415 | If the value is relocatable, we transform this into: | |
3416 | iss points as an index into string space | |
3417 | value value from lookup of the name | |
3418 | st st from lookup of the name | |
3419 | sc sc from lookup of the name | |
3420 | index code|CODE_MASK | |
3421 | ||
3422 | If the value is not relocatable, we transform this into: | |
3423 | iss points as an index into string space | |
3424 | value value | |
3425 | st st_Nil | |
3426 | sc sc_Nil | |
3427 | index code|CODE_MASK | |
3428 | ||
3429 | .stabn directives have four fields (string is null): | |
3430 | code a numeric code, defined in <stab.h> | |
3431 | 0 a zero | |
3432 | desc a zero or a line number | |
3433 | value a numeric value or an address. */ | |
3434 | ||
3435 | void | |
22ba90ce ILT |
3436 | ecoff_stab (sec, what, string, type, other, desc) |
3437 | segT sec; | |
9faec336 ILT |
3438 | int what; |
3439 | const char *string; | |
3440 | int type; | |
3441 | int other; | |
3442 | int desc; | |
3443 | { | |
3444 | efdr_t *save_file_ptr = cur_file_ptr; | |
3445 | symbolS *sym; | |
3446 | symint_t value; | |
3447 | st_t st; | |
3448 | sc_t sc; | |
3449 | symint_t indx; | |
012353f7 | 3450 | localsym_t *hold = NULL; |
9faec336 | 3451 | |
22ba90ce ILT |
3452 | ecoff_debugging_seen = 1; |
3453 | ||
9faec336 ILT |
3454 | /* We don't handle .stabd. */ |
3455 | if (what != 's' && what != 'n') | |
3456 | { | |
3457 | as_bad (".stab%c is not supported", what); | |
3458 | return; | |
3459 | } | |
3460 | ||
3461 | /* A .stabn uses a null name, not an empty string. */ | |
3462 | if (what == 'n') | |
3463 | string = NULL; | |
3464 | ||
3465 | /* We ignore the other field. */ | |
3466 | if (other != 0) | |
3467 | as_warn (".stab%c: ignoring non-zero other field", what); | |
3468 | ||
3469 | /* Make sure we have a current file. */ | |
3470 | if (cur_file_ptr == (efdr_t *) NULL) | |
3471 | { | |
d7b2038f | 3472 | add_file ((const char *) NULL, 0, 1); |
9faec336 ILT |
3473 | save_file_ptr = cur_file_ptr; |
3474 | } | |
3475 | ||
3476 | /* For stabs in ECOFF, the first symbol must be @stabs. This is a | |
3477 | signal to gdb. */ | |
3478 | if (stabs_seen == 0) | |
3479 | mark_stabs (0); | |
3480 | ||
3481 | /* Line number stabs are handled differently, since they have two | |
3482 | values, the line number and the address of the label. We use the | |
3483 | index field (aka desc) to hold the line number, and the value | |
3484 | field to hold the address. The symbol type is st_Label, which | |
3485 | should be different from the other stabs, so that gdb can | |
3486 | recognize it. */ | |
3487 | if (type == N_SLINE) | |
3488 | { | |
3489 | SYMR dummy_symr; | |
3490 | char *name; | |
3491 | char name_end; | |
3492 | ||
3493 | #ifndef NO_LISTING | |
3494 | if (listing) | |
3495 | listing_source_line ((unsigned int) desc); | |
3496 | #endif | |
3497 | ||
3498 | dummy_symr.index = desc; | |
3499 | if (dummy_symr.index != desc) | |
3500 | { | |
3501 | as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)", | |
3502 | desc, what); | |
3503 | return; | |
3504 | } | |
3505 | ||
3506 | name = input_line_pointer; | |
3507 | name_end = get_symbol_end (); | |
3508 | ||
3509 | sym = symbol_find_or_make (name); | |
3510 | *input_line_pointer = name_end; | |
3511 | ||
3512 | value = 0; | |
3513 | st = st_Label; | |
3514 | sc = sc_Text; | |
3515 | indx = desc; | |
3516 | } | |
3517 | else | |
3518 | { | |
3519 | #ifndef NO_LISTING | |
3520 | if (listing && (type == N_SO || type == N_SOL)) | |
3521 | listing_source_file (string); | |
3522 | #endif | |
012353f7 | 3523 | |
9faec336 ILT |
3524 | if (isdigit (*input_line_pointer) |
3525 | || *input_line_pointer == '-' | |
3526 | || *input_line_pointer == '+') | |
3527 | { | |
3528 | st = st_Nil; | |
3529 | sc = sc_Nil; | |
3530 | sym = (symbolS *) NULL; | |
3531 | value = get_absolute_expression (); | |
3532 | } | |
3533 | else if (! is_name_beginner ((unsigned char) *input_line_pointer)) | |
3534 | { | |
3535 | as_warn ("Illegal .stab%c directive, bad character", what); | |
3536 | return; | |
3537 | } | |
3538 | else | |
3539 | { | |
3540 | char *name; | |
3541 | char name_end; | |
3542 | ||
3543 | name = input_line_pointer; | |
3544 | name_end = get_symbol_end (); | |
3545 | ||
3546 | sym = symbol_find_or_make (name); | |
3547 | ||
3548 | sc = sc_Nil; | |
3549 | st = st_Nil; | |
3550 | value = 0; | |
3551 | ||
3552 | *input_line_pointer = name_end; | |
3553 | if (name_end == '+' || name_end == '-') | |
3554 | { | |
3555 | ++input_line_pointer; | |
3556 | value = get_absolute_expression (); | |
3557 | if (name_end == '-') | |
3558 | value = - value; | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | indx = ECOFF_MARK_STAB (type); | |
3563 | } | |
3564 | ||
012353f7 KR |
3565 | /* Don't store the stabs symbol we are creating as the type of the |
3566 | ECOFF symbol. We want to compute the type of the ECOFF symbol | |
3567 | independently. */ | |
3568 | if (sym != (symbolS *) NULL) | |
3569 | hold = sym->ecoff_symbol; | |
3570 | ||
9faec336 ILT |
3571 | (void) add_ecoff_symbol (string, st, sc, sym, value, indx); |
3572 | ||
012353f7 KR |
3573 | if (sym != (symbolS *) NULL) |
3574 | sym->ecoff_symbol = hold; | |
3575 | ||
9faec336 ILT |
3576 | /* Restore normal file type. */ |
3577 | cur_file_ptr = save_file_ptr; | |
3578 | } | |
3579 | \f | |
f85ad9d5 ILT |
3580 | /* Frob an ECOFF symbol. Small common symbols go into a special |
3581 | .scommon section rather than bfd_com_section. */ | |
c6858c1b ILT |
3582 | |
3583 | void | |
3584 | ecoff_frob_symbol (sym) | |
3585 | symbolS *sym; | |
3586 | { | |
f85ad9d5 | 3587 | if (S_IS_COMMON (sym) |
c6858c1b | 3588 | && S_GET_VALUE (sym) > 0 |
e4fc9376 | 3589 | && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) |
c6858c1b ILT |
3590 | { |
3591 | static asection scom_section; | |
3592 | static asymbol scom_symbol; | |
3593 | ||
3594 | /* We must construct a fake section similar to bfd_com_section | |
3595 | but with the name .scommon. */ | |
3596 | if (scom_section.name == NULL) | |
3597 | { | |
3598 | scom_section = bfd_com_section; | |
3599 | scom_section.name = ".scommon"; | |
3600 | scom_section.output_section = &scom_section; | |
3601 | scom_section.symbol = &scom_symbol; | |
3602 | scom_section.symbol_ptr_ptr = &scom_section.symbol; | |
3603 | scom_symbol = *bfd_com_section.symbol; | |
3604 | scom_symbol.name = ".scommon"; | |
3605 | scom_symbol.section = &scom_section; | |
3606 | } | |
3607 | S_SET_SEGMENT (sym, &scom_section); | |
3608 | } | |
3609 | } | |
3610 | \f | |
9faec336 ILT |
3611 | /* Add bytes to the symbolic information buffer. */ |
3612 | ||
3613 | static char * | |
3614 | ecoff_add_bytes (buf, bufend, bufptr, need) | |
3615 | char **buf; | |
3616 | char **bufend; | |
3617 | char *bufptr; | |
3618 | unsigned long need; | |
3619 | { | |
3620 | unsigned long at; | |
3621 | unsigned long want; | |
3622 | ||
3623 | at = bufptr - *buf; | |
3624 | need -= *bufend - bufptr; | |
3625 | if (need < PAGE_SIZE) | |
3626 | need = PAGE_SIZE; | |
3627 | want = (*bufend - *buf) + need; | |
3628 | *buf = xrealloc (*buf, want); | |
3629 | *bufend = *buf + want; | |
3630 | return *buf + at; | |
3631 | } | |
3632 | ||
3633 | /* Adjust the symbolic information buffer to the alignment required | |
3634 | for the ECOFF target debugging information. */ | |
3635 | ||
3636 | static unsigned long | |
3637 | ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr) | |
3638 | const struct ecoff_debug_swap *backend; | |
3639 | char **buf; | |
3640 | char **bufend; | |
3641 | unsigned long offset; | |
3642 | char **bufptrptr; | |
3643 | { | |
3644 | bfd_size_type align; | |
3645 | ||
3646 | align = backend->debug_align; | |
3647 | if ((offset & (align - 1)) != 0) | |
3648 | { | |
3649 | unsigned long add; | |
3650 | ||
3651 | add = align - (offset & (align - 1)); | |
3652 | if (*bufend - (*buf + offset) < add) | |
3653 | (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); | |
3654 | memset (*buf + offset, 0, add); | |
3655 | offset += add; | |
3656 | if (bufptrptr != (char **) NULL) | |
3657 | *bufptrptr = *buf + offset; | |
3658 | } | |
3659 | ||
3660 | return offset; | |
3661 | } | |
3662 | ||
3663 | /* Build the line number information. */ | |
3664 | ||
3665 | static unsigned long | |
3666 | ecoff_build_lineno (backend, buf, bufend, offset, linecntptr) | |
3667 | const struct ecoff_debug_swap *backend; | |
3668 | char **buf; | |
3669 | char **bufend; | |
3670 | unsigned long offset; | |
3671 | long *linecntptr; | |
3672 | { | |
3673 | char *bufptr; | |
3674 | register lineno_list_t *l; | |
3675 | lineno_list_t *last; | |
3676 | efdr_t *file; | |
3677 | proc_t *proc; | |
3678 | unsigned long c; | |
3679 | long iline; | |
3680 | long totcount; | |
daad3bbf | 3681 | lineno_list_t first; |
9faec336 ILT |
3682 | |
3683 | if (linecntptr != (long *) NULL) | |
3684 | *linecntptr = 0; | |
3685 | ||
3686 | bufptr = *buf + offset; | |
3687 | ||
3688 | file = (efdr_t *) NULL; | |
3689 | proc = (proc_t *) NULL; | |
3690 | last = (lineno_list_t *) NULL; | |
3691 | c = offset; | |
3692 | iline = 0; | |
3693 | totcount = 0; | |
daad3bbf KH |
3694 | |
3695 | /* For some reason the address of the first procedure is ignored | |
3696 | when reading line numbers. This doesn't matter if the address of | |
3697 | the first procedure is 0, but when gcc is generating MIPS | |
3698 | embedded PIC code, it will put strings in the .text section | |
3699 | before the first procedure. We cope by inserting a dummy line if | |
3700 | the address of the first procedure is not 0. Hopefully this | |
3701 | won't screw things up too badly. */ | |
3702 | if (first_proc_ptr != (proc_t *) NULL | |
3703 | && first_lineno != (lineno_list_t *) NULL | |
3704 | && ((S_GET_VALUE (first_proc_ptr->sym->as_sym) | |
3705 | + bfd_get_section_vma (stdoutput, | |
3706 | S_GET_SEGMENT (first_proc_ptr->sym->as_sym))) | |
3707 | != 0)) | |
3708 | { | |
3709 | first.file = first_lineno->file; | |
3710 | first.proc = first_lineno->proc; | |
3711 | first.frag = &zero_address_frag; | |
3712 | first.paddr = 0; | |
3713 | first.lineno = 0; | |
3714 | ||
3715 | first.next = first_lineno; | |
3716 | first_lineno = &first; | |
3717 | } | |
3718 | ||
9faec336 ILT |
3719 | for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next) |
3720 | { | |
3721 | long count; | |
3722 | long delta; | |
3723 | ||
3724 | /* Get the offset to the memory address of the next line number | |
3725 | (in words). Do this first, so that we can skip ahead to the | |
3726 | next useful line number entry. */ | |
3727 | if (l->next == (lineno_list_t *) NULL) | |
64d527f7 ILT |
3728 | { |
3729 | /* We want a count of zero, but it will be decremented | |
3730 | before it is used. */ | |
3731 | count = 1; | |
3732 | } | |
9faec336 ILT |
3733 | else |
3734 | { | |
3735 | count = ((l->next->frag->fr_address + l->next->paddr | |
3736 | - (l->frag->fr_address + l->paddr)) | |
3737 | >> 2); | |
3738 | if (count <= 0) | |
3739 | { | |
3740 | /* Don't change last, so we still get the right delta. */ | |
3741 | continue; | |
3742 | } | |
3743 | } | |
3744 | ||
3745 | if (l->file != file || l->proc != proc) | |
3746 | { | |
3747 | if (l->proc != proc && proc != (proc_t *) NULL) | |
3748 | proc->pdr.lnHigh = last->lineno; | |
3749 | if (l->file != file && file != (efdr_t *) NULL) | |
3750 | { | |
3751 | file->fdr.cbLine = c - file->fdr.cbLineOffset; | |
9faec336 ILT |
3752 | file->fdr.cline = totcount + count; |
3753 | if (linecntptr != (long *) NULL) | |
3754 | *linecntptr += totcount + count; | |
3755 | totcount = 0; | |
3756 | } | |
3757 | ||
3758 | if (l->file != file) | |
3759 | { | |
d7b2038f ILT |
3760 | efdr_t *last_file = file; |
3761 | ||
9faec336 | 3762 | file = l->file; |
d7b2038f ILT |
3763 | if (last_file != (efdr_t *) NULL) |
3764 | file->fdr.ilineBase | |
3765 | = last_file->fdr.ilineBase + last_file->fdr.cline; | |
3766 | else | |
3767 | file->fdr.ilineBase = 0; | |
9faec336 ILT |
3768 | file->fdr.cbLineOffset = c; |
3769 | } | |
3770 | if (l->proc != proc) | |
3771 | { | |
3772 | proc = l->proc; | |
3773 | if (proc != (proc_t *) NULL) | |
3774 | { | |
3775 | proc->pdr.lnLow = l->lineno; | |
3776 | proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; | |
9faec336 ILT |
3777 | proc->pdr.iline = totcount; |
3778 | } | |
3779 | } | |
3780 | ||
3781 | last = (lineno_list_t *) NULL; | |
012353f7 | 3782 | } |
9faec336 ILT |
3783 | |
3784 | totcount += count; | |
3785 | ||
3786 | /* Get the offset to this line number. */ | |
3787 | if (last == (lineno_list_t *) NULL) | |
3788 | delta = 0; | |
3789 | else | |
3790 | delta = l->lineno - last->lineno; | |
3791 | ||
3792 | /* Put in the offset to this line number. */ | |
3793 | while (delta != 0) | |
3794 | { | |
3795 | int setcount; | |
3796 | ||
3797 | /* 1 is added to each count read. */ | |
3798 | --count; | |
3799 | /* We can only adjust the word count by up to 15 words at a | |
3800 | time. */ | |
3801 | if (count <= 0x0f) | |
3802 | { | |
3803 | setcount = count; | |
3804 | count = 0; | |
3805 | } | |
3806 | else | |
3807 | { | |
3808 | setcount = 0x0f; | |
3809 | count -= 0x0f; | |
3810 | } | |
3811 | if (delta >= -7 && delta <= 7) | |
3812 | { | |
3813 | if (bufptr >= *bufend) | |
3814 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); | |
3815 | *bufptr++ = setcount + (delta << 4); | |
3816 | delta = 0; | |
3817 | ++c; | |
3818 | } | |
3819 | else | |
3820 | { | |
3821 | int set; | |
3822 | ||
3823 | if (*bufend - bufptr < 3) | |
3824 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); | |
3825 | *bufptr++ = setcount + (8 << 4); | |
3826 | if (delta < -0x8000) | |
3827 | { | |
3828 | set = -0x8000; | |
3829 | delta += 0x8000; | |
3830 | } | |
3831 | else if (delta > 0x7fff) | |
3832 | { | |
3833 | set = 0x7fff; | |
3834 | delta -= 0x7fff; | |
3835 | } | |
3836 | else | |
3837 | { | |
3838 | set = delta; | |
3839 | delta = 0; | |
3840 | } | |
3841 | *bufptr++ = set >> 8; | |
3842 | *bufptr++ = set & 0xffff; | |
3843 | c += 3; | |
3844 | } | |
3845 | } | |
3846 | ||
3847 | /* Finish adjusting the count. */ | |
3848 | while (count > 0) | |
3849 | { | |
3850 | if (bufptr >= *bufend) | |
3851 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); | |
3852 | /* 1 is added to each count read. */ | |
3853 | --count; | |
3854 | if (count > 0x0f) | |
3855 | { | |
3856 | *bufptr++ = 0x0f; | |
3857 | count -= 0x0f; | |
3858 | } | |
3859 | else | |
3860 | { | |
3861 | *bufptr++ = count; | |
3862 | count = 0; | |
3863 | } | |
3864 | ++c; | |
3865 | } | |
3866 | ||
3867 | ++iline; | |
3868 | last = l; | |
3869 | } | |
3870 | ||
3871 | if (proc != (proc_t *) NULL) | |
3872 | proc->pdr.lnHigh = last->lineno; | |
3873 | if (file != (efdr_t *) NULL) | |
3874 | { | |
3875 | file->fdr.cbLine = c - file->fdr.cbLineOffset; | |
3876 | file->fdr.cline = totcount; | |
3877 | } | |
3878 | ||
3879 | if (linecntptr != (long *) NULL) | |
3880 | *linecntptr += totcount; | |
3881 | ||
3882 | c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); | |
3883 | ||
3884 | return c; | |
3885 | } | |
3886 | ||
3887 | /* Build and swap out the symbols. */ | |
3888 | ||
3889 | static unsigned long | |
3890 | ecoff_build_symbols (backend, buf, bufend, offset) | |
3891 | const struct ecoff_debug_swap *backend; | |
3892 | char **buf; | |
3893 | char **bufend; | |
3894 | unsigned long offset; | |
3895 | { | |
3896 | const bfd_size_type external_sym_size = backend->external_sym_size; | |
3897 | void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR)) | |
3898 | = backend->swap_sym_out; | |
3899 | char *sym_out; | |
3900 | long isym; | |
3901 | vlinks_t *file_link; | |
3902 | ||
3903 | sym_out = *buf + offset; | |
3904 | ||
3905 | isym = 0; | |
3906 | ||
3907 | /* The symbols are stored by file. */ | |
3908 | for (file_link = file_desc.first; | |
3909 | file_link != (vlinks_t *) NULL; | |
3910 | file_link = file_link->next) | |
3911 | { | |
3912 | int ifilesym; | |
3913 | int fil_cnt; | |
3914 | efdr_t *fil_ptr; | |
3915 | efdr_t *fil_end; | |
3916 | ||
3917 | if (file_link->next == (vlinks_t *) NULL) | |
3918 | fil_cnt = file_desc.objects_last_page; | |
3919 | else | |
3920 | fil_cnt = file_desc.objects_per_page; | |
3921 | fil_ptr = file_link->datum->file; | |
3922 | fil_end = fil_ptr + fil_cnt; | |
3923 | for (; fil_ptr < fil_end; fil_ptr++) | |
3924 | { | |
3925 | vlinks_t *sym_link; | |
3926 | ||
3927 | fil_ptr->fdr.isymBase = isym; | |
3928 | ifilesym = isym; | |
3929 | for (sym_link = fil_ptr->symbols.first; | |
3930 | sym_link != (vlinks_t *) NULL; | |
3931 | sym_link = sym_link->next) | |
3932 | { | |
3933 | int sym_cnt; | |
3934 | localsym_t *sym_ptr; | |
3935 | localsym_t *sym_end; | |
3936 | ||
3937 | if (sym_link->next == (vlinks_t *) NULL) | |
3938 | sym_cnt = fil_ptr->symbols.objects_last_page; | |
3939 | else | |
3940 | sym_cnt = fil_ptr->symbols.objects_per_page; | |
3941 | sym_ptr = sym_link->datum->sym; | |
3942 | sym_end = sym_ptr + sym_cnt; | |
3943 | for (; sym_ptr < sym_end; sym_ptr++) | |
3944 | { | |
3945 | int local; | |
3946 | symbolS *as_sym; | |
3947 | forward_t *f; | |
3948 | ||
3949 | know (sym_ptr->file_ptr == fil_ptr); | |
3950 | ||
3951 | /* If there is no associated gas symbol, then this | |
3952 | is a pure debugging symbol. We have already | |
3953 | added the name (if any) to fil_ptr->strings. | |
3954 | Otherwise we must decide whether this is an | |
3955 | external or a local symbol (actually, it may be | |
3956 | both if the local provides additional debugging | |
3957 | information for the external). */ | |
3958 | local = 1; | |
3959 | as_sym = sym_ptr->as_sym; | |
3960 | if (as_sym != (symbolS *) NULL) | |
3961 | { | |
3962 | symint_t indx; | |
3963 | ||
3964 | /* The value of a block start symbol is the | |
3965 | offset from the start of the procedure. For | |
3966 | other symbols we just use the gas value (but | |
3967 | we must offset it by the vma of the section, | |
3968 | just as BFD does, because BFD will not see | |
3969 | this value). */ | |
3970 | if (sym_ptr->ecoff_sym.asym.st == (int) st_Block | |
3971 | && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) | |
3972 | { | |
3973 | symbolS *begin_sym; | |
3974 | ||
3975 | know (sym_ptr->proc_ptr != (proc_t *) NULL); | |
3976 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; | |
3977 | if (S_GET_SEGMENT (as_sym) | |
3978 | != S_GET_SEGMENT (begin_sym)) | |
3979 | as_warn (".begin/.bend in different segments"); | |
3980 | sym_ptr->ecoff_sym.asym.value = | |
3981 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); | |
3982 | } | |
3983 | else | |
3984 | sym_ptr->ecoff_sym.asym.value = | |
3985 | (S_GET_VALUE (as_sym) | |
3986 | + bfd_get_section_vma (stdoutput, | |
3987 | S_GET_SEGMENT (as_sym))); | |
3988 | ||
d7b2038f ILT |
3989 | sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym); |
3990 | ||
9faec336 ILT |
3991 | /* Set st_Proc to st_StaticProc for local |
3992 | functions. */ | |
3993 | if (sym_ptr->ecoff_sym.asym.st == st_Proc | |
3994 | && S_IS_DEFINED (as_sym) | |
d7b2038f ILT |
3995 | && ! S_IS_EXTERNAL (as_sym) |
3996 | && ! S_IS_WEAK (as_sym)) | |
9faec336 ILT |
3997 | sym_ptr->ecoff_sym.asym.st = st_StaticProc; |
3998 | ||
3999 | /* Get the type and storage class based on where | |
4000 | the symbol actually wound up. Traditionally, | |
4001 | N_LBRAC and N_RBRAC are *not* relocated. */ | |
4002 | indx = sym_ptr->ecoff_sym.asym.index; | |
4003 | if (sym_ptr->ecoff_sym.asym.st == st_Nil | |
4004 | && sym_ptr->ecoff_sym.asym.sc == sc_Nil | |
4005 | && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) | |
4006 | || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) | |
4007 | && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) | |
4008 | { | |
4009 | segT seg; | |
4010 | const char *segname; | |
4011 | st_t st; | |
4012 | sc_t sc; | |
4013 | ||
4014 | seg = S_GET_SEGMENT (as_sym); | |
4015 | segname = segment_name (seg); | |
4016 | ||
012353f7 KR |
4017 | if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) |
4018 | && (S_IS_EXTERNAL (as_sym) | |
d7b2038f | 4019 | || S_IS_WEAK (as_sym) |
012353f7 | 4020 | || ! S_IS_DEFINED (as_sym))) |
c1444ec4 ILT |
4021 | { |
4022 | if ((as_sym->bsym->flags & BSF_FUNCTION) != 0) | |
4023 | st = st_Proc; | |
4024 | else | |
4025 | st = st_Global; | |
4026 | } | |
9faec336 ILT |
4027 | else if (seg == text_section) |
4028 | st = st_Label; | |
4029 | else | |
4030 | st = st_Static; | |
4031 | ||
f85ad9d5 | 4032 | if (! S_IS_DEFINED (as_sym)) |
9faec336 | 4033 | { |
f85ad9d5 ILT |
4034 | if (as_sym->ecoff_extern_size == 0 |
4035 | || (as_sym->ecoff_extern_size | |
4036 | > bfd_get_gp_size (stdoutput))) | |
9faec336 | 4037 | sc = sc_Undefined; |
f85ad9d5 ILT |
4038 | else |
4039 | { | |
4040 | sc = sc_SUndefined; | |
4041 | sym_ptr->ecoff_sym.asym.value = | |
4042 | as_sym->ecoff_extern_size; | |
4043 | } | |
9faec336 ILT |
4044 | } |
4045 | else if (S_IS_COMMON (as_sym)) | |
4046 | { | |
4047 | if (S_GET_VALUE (as_sym) > 0 | |
4048 | && (S_GET_VALUE (as_sym) | |
4049 | <= bfd_get_gp_size (stdoutput))) | |
4050 | sc = sc_SCommon; | |
4051 | else | |
4052 | sc = sc_Common; | |
4053 | } | |
4054 | else if (seg == text_section) | |
4055 | sc = sc_Text; | |
4056 | else if (seg == data_section) | |
4057 | sc = sc_Data; | |
4058 | else if (strcmp (segname, ".rdata") == 0 | |
4059 | || strcmp (segname, ".rodata") == 0) | |
4060 | sc = sc_RData; | |
4061 | else if (strcmp (segname, ".sdata") == 0) | |
4062 | sc = sc_SData; | |
4063 | else if (seg == bss_section) | |
4064 | sc = sc_Bss; | |
4065 | else if (strcmp (segname, ".sbss") == 0) | |
4066 | sc = sc_SBss; | |
4067 | else if (seg == &bfd_abs_section) | |
4068 | sc = sc_Abs; | |
4069 | else | |
9da4c5d1 ILT |
4070 | { |
4071 | /* This must be a user named section. | |
4072 | This is not possible in ECOFF, but it | |
4073 | is in ELF. */ | |
4074 | sc = sc_Data; | |
4075 | } | |
9faec336 ILT |
4076 | |
4077 | sym_ptr->ecoff_sym.asym.st = (int) st; | |
4078 | sym_ptr->ecoff_sym.asym.sc = (int) sc; | |
4079 | } | |
4080 | ||
4081 | /* This is just an external symbol if it is | |
4082 | outside a procedure and it has a type. | |
4083 | FIXME: g++ will generate symbols which have | |
4084 | different names in the debugging information | |
4085 | than the actual symbol. Should we handle | |
4086 | them here? */ | |
4087 | if ((S_IS_EXTERNAL (as_sym) | |
d7b2038f | 4088 | || S_IS_WEAK (as_sym) |
9faec336 ILT |
4089 | || ! S_IS_DEFINED (as_sym)) |
4090 | && sym_ptr->proc_ptr == (proc_t *) NULL | |
4091 | && sym_ptr->ecoff_sym.asym.st != (int) st_Nil | |
4092 | && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) | |
4093 | local = 0; | |
4094 | ||
4095 | /* If an st_end symbol has an associated gas | |
4096 | symbol, then it is a local label created for | |
4097 | a .bend or .end directive. Stabs line | |
4098 | numbers will have \001 in the names. */ | |
4099 | if (local | |
4100 | && sym_ptr->ecoff_sym.asym.st != st_End | |
4101 | && strchr (sym_ptr->name, '\001') == 0) | |
4102 | sym_ptr->ecoff_sym.asym.iss = | |
4103 | add_string (&fil_ptr->strings, | |
4104 | fil_ptr->str_hash, | |
4105 | sym_ptr->name, | |
4106 | (shash_t **) NULL); | |
4107 | } | |
4108 | ||
4109 | /* We now know the index of this symbol; fill in | |
4110 | locations that have been waiting for that | |
4111 | information. */ | |
4112 | if (sym_ptr->begin_ptr != (localsym_t *) NULL) | |
4113 | { | |
4114 | localsym_t *begin_ptr; | |
4115 | st_t begin_type; | |
4116 | ||
4117 | know (local); | |
4118 | begin_ptr = sym_ptr->begin_ptr; | |
4119 | know (begin_ptr->sym_index != -1); | |
4120 | sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; | |
4121 | if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) | |
4122 | sym_ptr->ecoff_sym.asym.iss = | |
4123 | begin_ptr->ecoff_sym.asym.iss; | |
4124 | ||
4125 | begin_type = begin_ptr->ecoff_sym.asym.st; | |
4126 | if (begin_type == st_File | |
4127 | || begin_type == st_Block) | |
4128 | { | |
4129 | begin_ptr->ecoff_sym.asym.index = | |
4130 | isym - ifilesym + 1; | |
4131 | (*swap_sym_out) (stdoutput, | |
4132 | &begin_ptr->ecoff_sym.asym, | |
4133 | (*buf | |
4134 | + offset | |
4135 | + (begin_ptr->sym_index | |
4136 | * external_sym_size))); | |
4137 | } | |
4138 | else | |
4139 | { | |
4140 | know (begin_ptr->index_ptr != (aux_t *) NULL); | |
4141 | begin_ptr->index_ptr->data.isym = | |
4142 | isym - ifilesym + 1; | |
4143 | } | |
4144 | ||
4145 | /* The value of the symbol marking the end of a | |
4146 | procedure is the size of the procedure. The | |
4147 | value of the symbol marking the end of a | |
4148 | block is the offset from the start of the | |
4149 | procedure to the block. */ | |
4150 | if (begin_type == st_Proc | |
4151 | || begin_type == st_StaticProc) | |
4152 | { | |
4153 | know (as_sym != (symbolS *) NULL); | |
4154 | know (begin_ptr->as_sym != (symbolS *) NULL); | |
4155 | if (S_GET_SEGMENT (as_sym) | |
4156 | != S_GET_SEGMENT (begin_ptr->as_sym)) | |
4157 | as_warn (".begin/.bend in different segments"); | |
4158 | sym_ptr->ecoff_sym.asym.value = | |
4159 | (S_GET_VALUE (as_sym) | |
4160 | - S_GET_VALUE (begin_ptr->as_sym)); | |
4161 | } | |
4162 | else if (begin_type == st_Block | |
4163 | && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) | |
4164 | { | |
4165 | symbolS *begin_sym; | |
4166 | ||
4167 | know (as_sym != (symbolS *) NULL); | |
4168 | know (sym_ptr->proc_ptr != (proc_t *) NULL); | |
4169 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; | |
4170 | if (S_GET_SEGMENT (as_sym) | |
4171 | != S_GET_SEGMENT (begin_sym)) | |
4172 | as_warn (".begin/.bend in different segments"); | |
4173 | sym_ptr->ecoff_sym.asym.value = | |
4174 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); | |
4175 | } | |
4176 | } | |
4177 | ||
4178 | for (f = sym_ptr->forward_ref; | |
4179 | f != (forward_t *) NULL; | |
4180 | f = f->next) | |
4181 | { | |
4182 | know (local); | |
4183 | f->ifd_ptr->data.isym = fil_ptr->file_index; | |
4184 | f->index_ptr->data.rndx.index = isym - ifilesym; | |
4185 | } | |
4186 | ||
4187 | if (local) | |
4188 | { | |
4189 | if (*bufend - sym_out < external_sym_size) | |
4190 | sym_out = ecoff_add_bytes (buf, bufend, | |
4191 | sym_out, | |
4192 | external_sym_size); | |
4193 | (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, | |
4194 | sym_out); | |
4195 | sym_out += external_sym_size; | |
4196 | ||
4197 | sym_ptr->sym_index = isym; | |
4198 | ||
4199 | if (sym_ptr->proc_ptr != (proc_t *) NULL | |
4200 | && sym_ptr->proc_ptr->sym == sym_ptr) | |
4201 | sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; | |
4202 | ||
4203 | ++isym; | |
4204 | } | |
4205 | ||
4206 | /* Record the local symbol index and file number in | |
4207 | case this is an external symbol. Note that this | |
4208 | destroys the asym.index field. */ | |
012353f7 KR |
4209 | if (as_sym != (symbolS *) NULL |
4210 | && as_sym->ecoff_symbol == sym_ptr) | |
9faec336 | 4211 | { |
c1444ec4 ILT |
4212 | if ((sym_ptr->ecoff_sym.asym.st == st_Proc |
4213 | || sym_ptr->ecoff_sym.asym.st == st_StaticProc) | |
4214 | && local) | |
4215 | sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; | |
9faec336 ILT |
4216 | sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; |
4217 | } | |
4218 | } | |
4219 | } | |
4220 | fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; | |
4221 | } | |
4222 | } | |
4223 | ||
4224 | return offset + isym * external_sym_size; | |
4225 | } | |
4226 | ||
4227 | /* Swap out the procedure information. */ | |
4228 | ||
4229 | static unsigned long | |
4230 | ecoff_build_procs (backend, buf, bufend, offset) | |
4231 | const struct ecoff_debug_swap *backend; | |
4232 | char **buf; | |
4233 | char **bufend; | |
4234 | unsigned long offset; | |
4235 | { | |
4236 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
4237 | void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR)) | |
4238 | = backend->swap_pdr_out; | |
4239 | char *pdr_out; | |
9faec336 ILT |
4240 | long iproc; |
4241 | vlinks_t *file_link; | |
4242 | ||
4243 | pdr_out = *buf + offset; | |
012353f7 | 4244 | |
9faec336 ILT |
4245 | iproc = 0; |
4246 | ||
4247 | /* The procedures are stored by file. */ | |
4248 | for (file_link = file_desc.first; | |
4249 | file_link != (vlinks_t *) NULL; | |
4250 | file_link = file_link->next) | |
4251 | { | |
4252 | int fil_cnt; | |
4253 | efdr_t *fil_ptr; | |
4254 | efdr_t *fil_end; | |
4255 | ||
4256 | if (file_link->next == (vlinks_t *) NULL) | |
4257 | fil_cnt = file_desc.objects_last_page; | |
4258 | else | |
4259 | fil_cnt = file_desc.objects_per_page; | |
4260 | fil_ptr = file_link->datum->file; | |
4261 | fil_end = fil_ptr + fil_cnt; | |
4262 | for (; fil_ptr < fil_end; fil_ptr++) | |
4263 | { | |
4264 | vlinks_t *proc_link; | |
4265 | int first; | |
4266 | ||
4267 | fil_ptr->fdr.ipdFirst = iproc; | |
4268 | first = 1; | |
4269 | for (proc_link = fil_ptr->procs.first; | |
4270 | proc_link != (vlinks_t *) NULL; | |
4271 | proc_link = proc_link->next) | |
4272 | { | |
4273 | int prc_cnt; | |
4274 | proc_t *proc_ptr; | |
4275 | proc_t *proc_end; | |
4276 | ||
4277 | if (proc_link->next == (vlinks_t *) NULL) | |
4278 | prc_cnt = fil_ptr->procs.objects_last_page; | |
4279 | else | |
4280 | prc_cnt = fil_ptr->procs.objects_per_page; | |
4281 | proc_ptr = proc_link->datum->proc; | |
4282 | proc_end = proc_ptr + prc_cnt; | |
4283 | for (; proc_ptr < proc_end; proc_ptr++) | |
4284 | { | |
4285 | symbolS *adr_sym; | |
4286 | unsigned long adr; | |
4287 | ||
4288 | adr_sym = proc_ptr->sym->as_sym; | |
4289 | adr = (S_GET_VALUE (adr_sym) | |
4290 | + bfd_get_section_vma (stdoutput, | |
4291 | S_GET_SEGMENT (adr_sym))); | |
4292 | if (first) | |
4293 | { | |
a2a1a548 ILT |
4294 | /* This code used to force the adr of the very |
4295 | first fdr to be 0. However, the native tools | |
4296 | don't do that, and I can't remember why it | |
4297 | used to work that way, so I took it out. */ | |
4298 | fil_ptr->fdr.adr = adr; | |
9faec336 ILT |
4299 | first = 0; |
4300 | } | |
4301 | proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; | |
4302 | if (*bufend - pdr_out < external_pdr_size) | |
4303 | pdr_out = ecoff_add_bytes (buf, bufend, | |
4304 | pdr_out, | |
4305 | external_pdr_size); | |
4306 | (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); | |
4307 | pdr_out += external_pdr_size; | |
4308 | ++iproc; | |
4309 | } | |
4310 | } | |
4311 | fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; | |
4312 | } | |
4313 | } | |
4314 | ||
4315 | return offset + iproc * external_pdr_size; | |
4316 | } | |
4317 | ||
4318 | /* Swap out the aux information. */ | |
4319 | ||
4320 | static unsigned long | |
4321 | ecoff_build_aux (backend, buf, bufend, offset) | |
4322 | const struct ecoff_debug_swap *backend; | |
4323 | char **buf; | |
4324 | char **bufend; | |
4325 | unsigned long offset; | |
4326 | { | |
4327 | int bigendian; | |
4328 | union aux_ext *aux_out; | |
4329 | long iaux; | |
4330 | vlinks_t *file_link; | |
4331 | ||
4332 | bigendian = stdoutput->xvec->header_byteorder_big_p; | |
4333 | ||
4334 | aux_out = (union aux_ext *) (*buf + offset); | |
012353f7 | 4335 | |
9faec336 ILT |
4336 | iaux = 0; |
4337 | ||
4338 | /* The aux entries are stored by file. */ | |
4339 | for (file_link = file_desc.first; | |
4340 | file_link != (vlinks_t *) NULL; | |
4341 | file_link = file_link->next) | |
4342 | { | |
4343 | int fil_cnt; | |
4344 | efdr_t *fil_ptr; | |
4345 | efdr_t *fil_end; | |
4346 | ||
4347 | if (file_link->next == (vlinks_t *) NULL) | |
4348 | fil_cnt = file_desc.objects_last_page; | |
4349 | else | |
4350 | fil_cnt = file_desc.objects_per_page; | |
4351 | fil_ptr = file_link->datum->file; | |
4352 | fil_end = fil_ptr + fil_cnt; | |
4353 | for (; fil_ptr < fil_end; fil_ptr++) | |
4354 | { | |
4355 | vlinks_t *aux_link; | |
4356 | ||
4357 | fil_ptr->fdr.fBigendian = bigendian; | |
4358 | fil_ptr->fdr.iauxBase = iaux; | |
4359 | for (aux_link = fil_ptr->aux_syms.first; | |
4360 | aux_link != (vlinks_t *) NULL; | |
4361 | aux_link = aux_link->next) | |
4362 | { | |
4363 | int aux_cnt; | |
4364 | aux_t *aux_ptr; | |
4365 | aux_t *aux_end; | |
4366 | ||
4367 | if (aux_link->next == (vlinks_t *) NULL) | |
4368 | aux_cnt = fil_ptr->aux_syms.objects_last_page; | |
4369 | else | |
4370 | aux_cnt = fil_ptr->aux_syms.objects_per_page; | |
4371 | aux_ptr = aux_link->datum->aux; | |
4372 | aux_end = aux_ptr + aux_cnt; | |
4373 | for (; aux_ptr < aux_end; aux_ptr++) | |
4374 | { | |
4375 | if (*bufend - (char *) aux_out < sizeof (union aux_ext)) | |
4376 | aux_out = ((union aux_ext *) | |
4377 | ecoff_add_bytes (buf, bufend, | |
4378 | (char *) aux_out, | |
4379 | sizeof (union aux_ext))); | |
4380 | switch (aux_ptr->type) | |
4381 | { | |
4382 | case aux_tir: | |
daad3bbf KH |
4383 | (*backend->swap_tir_out) (bigendian, |
4384 | &aux_ptr->data.ti, | |
4385 | &aux_out->a_ti); | |
9faec336 ILT |
4386 | break; |
4387 | case aux_rndx: | |
daad3bbf KH |
4388 | (*backend->swap_rndx_out) (bigendian, |
4389 | &aux_ptr->data.rndx, | |
4390 | &aux_out->a_rndx); | |
9faec336 ILT |
4391 | break; |
4392 | case aux_dnLow: | |
4393 | AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, | |
4394 | aux_out); | |
4395 | break; | |
4396 | case aux_dnHigh: | |
4397 | AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, | |
4398 | aux_out); | |
4399 | break; | |
4400 | case aux_isym: | |
4401 | AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, | |
4402 | aux_out); | |
4403 | break; | |
4404 | case aux_iss: | |
4405 | AUX_PUT_ISS (bigendian, aux_ptr->data.iss, | |
4406 | aux_out); | |
4407 | break; | |
4408 | case aux_width: | |
4409 | AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, | |
4410 | aux_out); | |
4411 | break; | |
4412 | case aux_count: | |
4413 | AUX_PUT_COUNT (bigendian, aux_ptr->data.count, | |
4414 | aux_out); | |
4415 | break; | |
4416 | } | |
4417 | ||
4418 | ++aux_out; | |
4419 | ++iaux; | |
4420 | } | |
4421 | } | |
4422 | fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; | |
4423 | } | |
4424 | } | |
4425 | ||
4426 | return ecoff_padding_adjust (backend, buf, bufend, | |
4427 | offset + iaux * sizeof (union aux_ext), | |
4428 | (char **) NULL); | |
4429 | } | |
4430 | ||
4431 | /* Copy out the strings from a varray_t. This returns the number of | |
4432 | bytes copied, rather than the new offset. */ | |
4433 | ||
4434 | static unsigned long | |
4435 | ecoff_build_strings (buf, bufend, offset, vp) | |
4436 | char **buf; | |
4437 | char **bufend; | |
4438 | unsigned long offset; | |
4439 | varray_t *vp; | |
4440 | { | |
4441 | unsigned long istr; | |
4442 | char *str_out; | |
4443 | vlinks_t *str_link; | |
4444 | ||
4445 | str_out = *buf + offset; | |
4446 | ||
4447 | istr = 0; | |
4448 | ||
4449 | for (str_link = vp->first; | |
4450 | str_link != (vlinks_t *) NULL; | |
4451 | str_link = str_link->next) | |
4452 | { | |
4453 | unsigned long str_cnt; | |
4454 | ||
4455 | if (str_link->next == (vlinks_t *) NULL) | |
4456 | str_cnt = vp->objects_last_page; | |
4457 | else | |
4458 | str_cnt = vp->objects_per_page; | |
4459 | ||
4460 | if (*bufend - str_out < str_cnt) | |
4461 | str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); | |
4462 | ||
4463 | memcpy (str_out, str_link->datum->byte, str_cnt); | |
4464 | str_out += str_cnt; | |
4465 | istr += str_cnt; | |
4466 | } | |
4467 | ||
4468 | return istr; | |
4469 | } | |
4470 | ||
4471 | /* Dump out the local strings. */ | |
4472 | ||
4473 | static unsigned long | |
4474 | ecoff_build_ss (backend, buf, bufend, offset) | |
4475 | const struct ecoff_debug_swap *backend; | |
4476 | char **buf; | |
4477 | char **bufend; | |
4478 | unsigned long offset; | |
4479 | { | |
4480 | long iss; | |
4481 | vlinks_t *file_link; | |
4482 | ||
4483 | iss = 0; | |
4484 | ||
4485 | for (file_link = file_desc.first; | |
4486 | file_link != (vlinks_t *) NULL; | |
4487 | file_link = file_link->next) | |
4488 | { | |
4489 | int fil_cnt; | |
4490 | efdr_t *fil_ptr; | |
4491 | efdr_t *fil_end; | |
4492 | ||
4493 | if (file_link->next == (vlinks_t *) NULL) | |
4494 | fil_cnt = file_desc.objects_last_page; | |
4495 | else | |
4496 | fil_cnt = file_desc.objects_per_page; | |
4497 | fil_ptr = file_link->datum->file; | |
4498 | fil_end = fil_ptr + fil_cnt; | |
4499 | for (; fil_ptr < fil_end; fil_ptr++) | |
4500 | { | |
4501 | long ss_cnt; | |
4502 | ||
4503 | fil_ptr->fdr.issBase = iss; | |
4504 | ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, | |
4505 | &fil_ptr->strings); | |
4506 | fil_ptr->fdr.cbSs = ss_cnt; | |
4507 | iss += ss_cnt; | |
4508 | } | |
4509 | } | |
4510 | ||
4511 | return ecoff_padding_adjust (backend, buf, bufend, offset + iss, | |
4512 | (char **) NULL); | |
4513 | } | |
4514 | ||
4515 | /* Swap out the file descriptors. */ | |
4516 | ||
4517 | static unsigned long | |
4518 | ecoff_build_fdr (backend, buf, bufend, offset) | |
4519 | const struct ecoff_debug_swap *backend; | |
4520 | char **buf; | |
4521 | char **bufend; | |
4522 | unsigned long offset; | |
4523 | { | |
4524 | const bfd_size_type external_fdr_size = backend->external_fdr_size; | |
4525 | void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR)) | |
4526 | = backend->swap_fdr_out; | |
4527 | long ifile; | |
4528 | char *fdr_out; | |
4529 | vlinks_t *file_link; | |
4530 | ||
4531 | ifile = 0; | |
4532 | ||
4533 | fdr_out = *buf + offset; | |
4534 | ||
4535 | for (file_link = file_desc.first; | |
4536 | file_link != (vlinks_t *) NULL; | |
4537 | file_link = file_link->next) | |
4538 | { | |
4539 | int fil_cnt; | |
4540 | efdr_t *fil_ptr; | |
4541 | efdr_t *fil_end; | |
4542 | ||
4543 | if (file_link->next == (vlinks_t *) NULL) | |
4544 | fil_cnt = file_desc.objects_last_page; | |
4545 | else | |
4546 | fil_cnt = file_desc.objects_per_page; | |
4547 | fil_ptr = file_link->datum->file; | |
4548 | fil_end = fil_ptr + fil_cnt; | |
4549 | for (; fil_ptr < fil_end; fil_ptr++) | |
4550 | { | |
4551 | if (*bufend - fdr_out < external_fdr_size) | |
4552 | fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, | |
4553 | external_fdr_size); | |
4554 | (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); | |
4555 | fdr_out += external_fdr_size; | |
4556 | ++ifile; | |
4557 | } | |
4558 | } | |
4559 | ||
4560 | return offset + ifile * external_fdr_size; | |
4561 | } | |
4562 | ||
012353f7 KR |
4563 | /* Set up the external symbols. These are supposed to be handled by |
4564 | the backend. This routine just gets the right information and | |
4565 | calls a backend function to deal with it. */ | |
9faec336 | 4566 | |
012353f7 KR |
4567 | static void |
4568 | ecoff_setup_ext () | |
9faec336 | 4569 | { |
9faec336 | 4570 | register symbolS *sym; |
9faec336 | 4571 | |
9faec336 ILT |
4572 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) |
4573 | { | |
4574 | if (sym->ecoff_symbol == NULL) | |
4575 | continue; | |
4576 | ||
4577 | /* If this is a local symbol, then force the fields to zero. */ | |
4578 | if (! S_IS_EXTERNAL (sym) | |
d7b2038f | 4579 | && ! S_IS_WEAK (sym) |
9faec336 ILT |
4580 | && S_IS_DEFINED (sym)) |
4581 | { | |
4582 | sym->ecoff_symbol->ecoff_sym.asym.value = 0; | |
4583 | sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil; | |
4584 | sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil; | |
4585 | sym->ecoff_symbol->ecoff_sym.asym.index = indexNil; | |
4586 | } | |
4587 | ||
012353f7 | 4588 | obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym); |
9faec336 | 4589 | } |
9faec336 ILT |
4590 | } |
4591 | ||
d7b2038f | 4592 | /* Build the ECOFF debugging information. */ |
9faec336 ILT |
4593 | |
4594 | unsigned long | |
4595 | ecoff_build_debug (hdr, bufp, backend) | |
4596 | HDRR *hdr; | |
4597 | char **bufp; | |
4598 | const struct ecoff_debug_swap *backend; | |
4599 | { | |
4600 | const bfd_size_type external_pdr_size = backend->external_pdr_size; | |
4601 | tag_t *ptag; | |
4602 | tag_t *ptag_next; | |
4603 | efdr_t *fil_ptr; | |
4604 | int end_warning; | |
4605 | efdr_t *hold_file_ptr; | |
4606 | proc_t * hold_proc_ptr; | |
4607 | symbolS *sym; | |
4608 | char *buf; | |
4609 | char *bufend; | |
4610 | unsigned long offset; | |
9faec336 ILT |
4611 | |
4612 | /* Make sure we have a file. */ | |
4613 | if (first_file == (efdr_t *) NULL) | |
d7b2038f | 4614 | add_file ((const char *) NULL, 0, 1); |
9faec336 ILT |
4615 | |
4616 | /* Handle any top level tags. */ | |
4617 | for (ptag = top_tag_head->first_tag; | |
4618 | ptag != (tag_t *) NULL; | |
4619 | ptag = ptag_next) | |
4620 | { | |
4621 | if (ptag->forward_ref != (forward_t *) NULL) | |
4622 | add_unknown_tag (ptag); | |
4623 | ||
4624 | ptag_next = ptag->same_block; | |
4625 | ptag->hash_ptr->tag_ptr = ptag->same_name; | |
4626 | free_tag (ptag); | |
4627 | } | |
4628 | ||
4629 | free_thead (top_tag_head); | |
4630 | ||
4631 | /* Look through the symbols. Add debugging information for each | |
4632 | symbol that has not already received it. */ | |
4633 | hold_file_ptr = cur_file_ptr; | |
4634 | hold_proc_ptr = cur_proc_ptr; | |
4635 | cur_proc_ptr = (proc_t *) NULL; | |
4636 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) | |
4637 | { | |
4638 | if (sym->ecoff_symbol != NULL | |
4639 | || sym->ecoff_file == (efdr_t *) NULL | |
4640 | || (sym->bsym->flags & BSF_SECTION_SYM) != 0) | |
4641 | continue; | |
4642 | ||
4643 | cur_file_ptr = sym->ecoff_file; | |
4644 | add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, | |
4645 | S_GET_VALUE (sym), indexNil); | |
4646 | } | |
4647 | cur_proc_ptr = hold_proc_ptr; | |
4648 | cur_file_ptr = hold_file_ptr; | |
4649 | ||
4650 | /* Output an ending symbol for all the files. We have to do this | |
4651 | here for the last file, so we may as well do it for all of the | |
4652 | files. */ | |
4653 | end_warning = 0; | |
4654 | for (fil_ptr = first_file; | |
4655 | fil_ptr != (efdr_t *) NULL; | |
4656 | fil_ptr = fil_ptr->next_file) | |
4657 | { | |
4658 | cur_file_ptr = fil_ptr; | |
22ba90ce ILT |
4659 | while (cur_file_ptr->cur_scope != (scope_t *) NULL |
4660 | && cur_file_ptr->cur_scope->prev != (scope_t *) NULL) | |
9faec336 ILT |
4661 | { |
4662 | cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; | |
d7b2038f | 4663 | if (! end_warning && ! cur_file_ptr->fake) |
9faec336 ILT |
4664 | { |
4665 | as_warn ("Missing .end or .bend at end of file"); | |
4666 | end_warning = 1; | |
4667 | } | |
4668 | } | |
22ba90ce ILT |
4669 | if (cur_file_ptr->cur_scope != (scope_t *) NULL) |
4670 | (void) add_ecoff_symbol ((const char *) NULL, | |
4671 | st_End, sc_Text, | |
4672 | (symbolS *) NULL, | |
4673 | (symint_t) 0, | |
4674 | (symint_t) 0); | |
9faec336 ILT |
4675 | } |
4676 | ||
4677 | /* Build the symbolic information. */ | |
4678 | offset = 0; | |
4679 | buf = xmalloc (PAGE_SIZE); | |
4680 | bufend = buf + PAGE_SIZE; | |
4681 | ||
4682 | /* Build the line number information. */ | |
4683 | hdr->cbLineOffset = offset; | |
4684 | offset = ecoff_build_lineno (backend, &buf, &bufend, offset, | |
4685 | &hdr->ilineMax); | |
4686 | hdr->cbLine = offset - hdr->cbLineOffset; | |
4687 | ||
4688 | /* We don't use dense numbers at all. */ | |
4689 | hdr->idnMax = 0; | |
4690 | hdr->cbDnOffset = 0; | |
4691 | ||
4692 | /* We can't build the PDR table until we have built the symbols, | |
4693 | because a PDR contains a symbol index. However, we set aside | |
4694 | space at this point. */ | |
4695 | hdr->ipdMax = proc_cnt; | |
4696 | hdr->cbPdOffset = offset; | |
4697 | if (bufend - (buf + offset) < proc_cnt * external_pdr_size) | |
4698 | (void) ecoff_add_bytes (&buf, &bufend, buf + offset, | |
4699 | proc_cnt * external_pdr_size); | |
4700 | offset += proc_cnt * external_pdr_size; | |
4701 | ||
4702 | /* Build the local symbols. */ | |
4703 | hdr->cbSymOffset = offset; | |
4704 | offset = ecoff_build_symbols (backend, &buf, &bufend, offset); | |
4705 | hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; | |
4706 | ||
4707 | /* Building the symbols initializes the symbol index in the PDR's. | |
4708 | Now we can swap out the PDR's. */ | |
4709 | (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); | |
4710 | ||
4711 | /* We don't use optimization symbols. */ | |
4712 | hdr->ioptMax = 0; | |
4713 | hdr->cbOptOffset = 0; | |
4714 | ||
4715 | /* Swap out the auxiliary type information. */ | |
4716 | hdr->cbAuxOffset = offset; | |
4717 | offset = ecoff_build_aux (backend, &buf, &bufend, offset); | |
4718 | hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); | |
4719 | ||
4720 | /* Copy out the local strings. */ | |
4721 | hdr->cbSsOffset = offset; | |
4722 | offset = ecoff_build_ss (backend, &buf, &bufend, offset); | |
4723 | hdr->issMax = offset - hdr->cbSsOffset; | |
4724 | ||
9faec336 ILT |
4725 | /* We don't use relative file descriptors. */ |
4726 | hdr->crfd = 0; | |
4727 | hdr->cbRfdOffset = 0; | |
4728 | ||
4729 | /* Swap out the file descriptors. */ | |
4730 | hdr->cbFdOffset = offset; | |
4731 | offset = ecoff_build_fdr (backend, &buf, &bufend, offset); | |
4732 | hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; | |
4733 | ||
012353f7 KR |
4734 | /* Set up the external symbols, which are handled by the BFD back |
4735 | end. */ | |
4736 | hdr->issExtMax = 0; | |
4737 | hdr->cbSsExtOffset = 0; | |
4738 | hdr->iextMax = 0; | |
4739 | hdr->cbExtOffset = 0; | |
4740 | ecoff_setup_ext (); | |
9faec336 ILT |
4741 | |
4742 | know ((offset & (backend->debug_align - 1)) == 0); | |
4743 | ||
daad3bbf KH |
4744 | /* FIXME: This value should be determined from the .verstamp directive, |
4745 | with reasonable defaults in config files. */ | |
4746 | #ifdef TC_ALPHA | |
4747 | hdr->vstamp = 0x030b; | |
4748 | #else | |
9faec336 | 4749 | hdr->vstamp = 0x020b; |
daad3bbf | 4750 | #endif |
9faec336 ILT |
4751 | |
4752 | *bufp = buf; | |
4753 | return offset; | |
4754 | } | |
4755 | \f | |
4756 | /* Allocate a cluster of pages. */ | |
4757 | ||
4758 | #ifndef MALLOC_CHECK | |
4759 | ||
4760 | static page_t * | |
4761 | allocate_cluster (npages) | |
4762 | unsigned long npages; | |
4763 | { | |
4764 | register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE); | |
4765 | ||
4766 | #ifdef ECOFF_DEBUG | |
4767 | if (debug > 3) | |
4768 | fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); | |
4769 | #endif | |
4770 | ||
4771 | memset (value, 0, npages * PAGE_USIZE); | |
4772 | ||
4773 | return value; | |
4774 | } | |
4775 | ||
4776 | ||
4777 | static page_t *cluster_ptr = NULL; | |
4778 | static unsigned long pages_left = 0; | |
4779 | ||
4780 | #endif /* MALLOC_CHECK */ | |
4781 | ||
4782 | /* Allocate one page (which is initialized to 0). */ | |
4783 | ||
4784 | static page_t * | |
4785 | allocate_page () | |
4786 | { | |
4787 | #ifndef MALLOC_CHECK | |
4788 | ||
4789 | if (pages_left == 0) | |
4790 | { | |
4791 | pages_left = MAX_CLUSTER_PAGES; | |
4792 | cluster_ptr = allocate_cluster (pages_left); | |
4793 | } | |
4794 | ||
4795 | pages_left--; | |
4796 | return cluster_ptr++; | |
4797 | ||
4798 | #else /* MALLOC_CHECK */ | |
4799 | ||
4800 | page_t *ptr; | |
4801 | ||
4802 | ptr = xmalloc (PAGE_USIZE); | |
4803 | memset (ptr, 0, PAGE_USIZE); | |
4804 | return ptr; | |
4805 | ||
4806 | #endif /* MALLOC_CHECK */ | |
4807 | } | |
4808 | \f | |
4809 | /* Allocate scoping information. */ | |
4810 | ||
4811 | static scope_t * | |
4812 | allocate_scope () | |
4813 | { | |
4814 | register scope_t *ptr; | |
4815 | static scope_t initial_scope; | |
4816 | ||
4817 | #ifndef MALLOC_CHECK | |
4818 | ||
4819 | ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope; | |
4820 | if (ptr != (scope_t *) NULL) | |
4821 | alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free; | |
4822 | else | |
4823 | { | |
4824 | register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated; | |
4825 | register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page; | |
4826 | ||
4827 | if (unallocated == 0) | |
4828 | { | |
4829 | unallocated = PAGE_SIZE / sizeof (scope_t); | |
4830 | alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page (); | |
4831 | alloc_counts[(int)alloc_type_scope].total_pages++; | |
4832 | } | |
4833 | ||
4834 | ptr = &cur_page->scope[--unallocated]; | |
4835 | alloc_counts[(int)alloc_type_scope].unallocated = unallocated; | |
4836 | } | |
4837 | ||
4838 | #else | |
4839 | ||
4840 | ptr = (scope_t *) xmalloc (sizeof (scope_t)); | |
4841 | ||
4842 | #endif | |
4843 | ||
4844 | alloc_counts[(int)alloc_type_scope].total_alloc++; | |
4845 | *ptr = initial_scope; | |
4846 | return ptr; | |
4847 | } | |
4848 | ||
4849 | /* Free scoping information. */ | |
4850 | ||
4851 | static void | |
4852 | free_scope (ptr) | |
4853 | scope_t *ptr; | |
4854 | { | |
4855 | alloc_counts[(int)alloc_type_scope].total_free++; | |
4856 | ||
4857 | #ifndef MALLOC_CHECK | |
4858 | ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope; | |
4859 | alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr; | |
4860 | #else | |
4861 | free ((PTR) ptr); | |
4862 | #endif | |
4863 | } | |
4864 | \f | |
4865 | /* Allocate links for pages in a virtual array. */ | |
4866 | ||
4867 | static vlinks_t * | |
4868 | allocate_vlinks () | |
4869 | { | |
4870 | register vlinks_t *ptr; | |
4871 | static vlinks_t initial_vlinks; | |
4872 | ||
4873 | #ifndef MALLOC_CHECK | |
4874 | ||
4875 | register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated; | |
4876 | register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page; | |
4877 | ||
4878 | if (unallocated == 0) | |
4879 | { | |
4880 | unallocated = PAGE_SIZE / sizeof (vlinks_t); | |
4881 | alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page (); | |
4882 | alloc_counts[(int)alloc_type_vlinks].total_pages++; | |
4883 | } | |
4884 | ||
4885 | ptr = &cur_page->vlinks[--unallocated]; | |
4886 | alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated; | |
4887 | ||
4888 | #else | |
4889 | ||
4890 | ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t)); | |
4891 | ||
4892 | #endif | |
4893 | ||
4894 | alloc_counts[(int)alloc_type_vlinks].total_alloc++; | |
4895 | *ptr = initial_vlinks; | |
4896 | return ptr; | |
4897 | } | |
4898 | \f | |
4899 | /* Allocate string hash buckets. */ | |
4900 | ||
4901 | static shash_t * | |
4902 | allocate_shash () | |
4903 | { | |
4904 | register shash_t *ptr; | |
4905 | static shash_t initial_shash; | |
4906 | ||
4907 | #ifndef MALLOC_CHECK | |
4908 | ||
4909 | register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated; | |
4910 | register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page; | |
4911 | ||
4912 | if (unallocated == 0) | |
4913 | { | |
4914 | unallocated = PAGE_SIZE / sizeof (shash_t); | |
4915 | alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page (); | |
4916 | alloc_counts[(int)alloc_type_shash].total_pages++; | |
4917 | } | |
4918 | ||
4919 | ptr = &cur_page->shash[--unallocated]; | |
4920 | alloc_counts[(int)alloc_type_shash].unallocated = unallocated; | |
4921 | ||
4922 | #else | |
4923 | ||
4924 | ptr = (shash_t *) xmalloc (sizeof (shash_t)); | |
4925 | ||
4926 | #endif | |
4927 | ||
4928 | alloc_counts[(int)alloc_type_shash].total_alloc++; | |
4929 | *ptr = initial_shash; | |
4930 | return ptr; | |
4931 | } | |
4932 | \f | |
4933 | /* Allocate type hash buckets. */ | |
4934 | ||
4935 | static thash_t * | |
4936 | allocate_thash () | |
4937 | { | |
4938 | register thash_t *ptr; | |
4939 | static thash_t initial_thash; | |
4940 | ||
4941 | #ifndef MALLOC_CHECK | |
4942 | ||
4943 | register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated; | |
4944 | register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page; | |
4945 | ||
4946 | if (unallocated == 0) | |
4947 | { | |
4948 | unallocated = PAGE_SIZE / sizeof (thash_t); | |
4949 | alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page (); | |
4950 | alloc_counts[(int)alloc_type_thash].total_pages++; | |
4951 | } | |
4952 | ||
4953 | ptr = &cur_page->thash[--unallocated]; | |
4954 | alloc_counts[(int)alloc_type_thash].unallocated = unallocated; | |
4955 | ||
4956 | #else | |
4957 | ||
4958 | ptr = (thash_t *) xmalloc (sizeof (thash_t)); | |
4959 | ||
4960 | #endif | |
4961 | ||
4962 | alloc_counts[(int)alloc_type_thash].total_alloc++; | |
4963 | *ptr = initial_thash; | |
4964 | return ptr; | |
4965 | } | |
4966 | \f | |
4967 | /* Allocate structure, union, or enum tag information. */ | |
4968 | ||
4969 | static tag_t * | |
4970 | allocate_tag () | |
4971 | { | |
4972 | register tag_t *ptr; | |
4973 | static tag_t initial_tag; | |
4974 | ||
4975 | #ifndef MALLOC_CHECK | |
4976 | ||
4977 | ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag; | |
4978 | if (ptr != (tag_t *) NULL) | |
4979 | alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free; | |
4980 | else | |
4981 | { | |
4982 | register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated; | |
4983 | register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page; | |
4984 | ||
4985 | if (unallocated == 0) | |
4986 | { | |
4987 | unallocated = PAGE_SIZE / sizeof (tag_t); | |
4988 | alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page (); | |
4989 | alloc_counts[(int)alloc_type_tag].total_pages++; | |
4990 | } | |
4991 | ||
4992 | ptr = &cur_page->tag[--unallocated]; | |
4993 | alloc_counts[(int)alloc_type_tag].unallocated = unallocated; | |
4994 | } | |
4995 | ||
4996 | #else | |
4997 | ||
4998 | ptr = (tag_t *) xmalloc (sizeof (tag_t)); | |
4999 | ||
5000 | #endif | |
5001 | ||
5002 | alloc_counts[(int)alloc_type_tag].total_alloc++; | |
5003 | *ptr = initial_tag; | |
5004 | return ptr; | |
5005 | } | |
5006 | ||
5007 | /* Free scoping information. */ | |
5008 | ||
5009 | static void | |
5010 | free_tag (ptr) | |
5011 | tag_t *ptr; | |
5012 | { | |
5013 | alloc_counts[(int)alloc_type_tag].total_free++; | |
5014 | ||
5015 | #ifndef MALLOC_CHECK | |
5016 | ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag; | |
5017 | alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr; | |
5018 | #else | |
5019 | free ((PTR_T) ptr); | |
5020 | #endif | |
5021 | } | |
5022 | \f | |
5023 | /* Allocate forward reference to a yet unknown tag. */ | |
5024 | ||
5025 | static forward_t * | |
5026 | allocate_forward () | |
5027 | { | |
5028 | register forward_t *ptr; | |
5029 | static forward_t initial_forward; | |
5030 | ||
5031 | #ifndef MALLOC_CHECK | |
5032 | ||
5033 | register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated; | |
5034 | register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page; | |
5035 | ||
5036 | if (unallocated == 0) | |
5037 | { | |
5038 | unallocated = PAGE_SIZE / sizeof (forward_t); | |
5039 | alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page (); | |
5040 | alloc_counts[(int)alloc_type_forward].total_pages++; | |
5041 | } | |
5042 | ||
5043 | ptr = &cur_page->forward[--unallocated]; | |
5044 | alloc_counts[(int)alloc_type_forward].unallocated = unallocated; | |
5045 | ||
5046 | #else | |
5047 | ||
5048 | ptr = (forward_t *) xmalloc (sizeof (forward_t)); | |
5049 | ||
5050 | #endif | |
5051 | ||
5052 | alloc_counts[(int)alloc_type_forward].total_alloc++; | |
5053 | *ptr = initial_forward; | |
5054 | return ptr; | |
5055 | } | |
5056 | \f | |
5057 | /* Allocate head of type hash list. */ | |
5058 | ||
5059 | static thead_t * | |
5060 | allocate_thead () | |
5061 | { | |
5062 | register thead_t *ptr; | |
5063 | static thead_t initial_thead; | |
5064 | ||
5065 | #ifndef MALLOC_CHECK | |
5066 | ||
5067 | ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead; | |
5068 | if (ptr != (thead_t *) NULL) | |
5069 | alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free; | |
5070 | else | |
5071 | { | |
5072 | register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated; | |
5073 | register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page; | |
5074 | ||
5075 | if (unallocated == 0) | |
5076 | { | |
5077 | unallocated = PAGE_SIZE / sizeof (thead_t); | |
5078 | alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page (); | |
5079 | alloc_counts[(int)alloc_type_thead].total_pages++; | |
5080 | } | |
5081 | ||
5082 | ptr = &cur_page->thead[--unallocated]; | |
5083 | alloc_counts[(int)alloc_type_thead].unallocated = unallocated; | |
5084 | } | |
5085 | ||
5086 | #else | |
5087 | ||
5088 | ptr = (thead_t *) xmalloc (sizeof (thead_t)); | |
5089 | ||
5090 | #endif | |
5091 | ||
5092 | alloc_counts[(int)alloc_type_thead].total_alloc++; | |
5093 | *ptr = initial_thead; | |
5094 | return ptr; | |
5095 | } | |
5096 | ||
5097 | /* Free scoping information. */ | |
5098 | ||
5099 | static void | |
5100 | free_thead (ptr) | |
5101 | thead_t *ptr; | |
5102 | { | |
5103 | alloc_counts[(int)alloc_type_thead].total_free++; | |
5104 | ||
5105 | #ifndef MALLOC_CHECK | |
5106 | ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead; | |
5107 | alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr; | |
5108 | #else | |
5109 | free ((PTR_T) ptr); | |
5110 | #endif | |
5111 | } | |
5112 | \f | |
5113 | static lineno_list_t * | |
5114 | allocate_lineno_list () | |
5115 | { | |
5116 | register lineno_list_t *ptr; | |
5117 | static lineno_list_t initial_lineno_list; | |
5118 | ||
5119 | #ifndef MALLOC_CHECK | |
5120 | ||
5121 | register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated; | |
5122 | register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page; | |
5123 | ||
5124 | if (unallocated == 0) | |
5125 | { | |
5126 | unallocated = PAGE_SIZE / sizeof (lineno_list_t); | |
5127 | alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page (); | |
5128 | alloc_counts[(int)alloc_type_lineno].total_pages++; | |
5129 | } | |
5130 | ||
5131 | ptr = &cur_page->lineno[--unallocated]; | |
5132 | alloc_counts[(int)alloc_type_lineno].unallocated = unallocated; | |
5133 | ||
5134 | #else | |
5135 | ||
5136 | ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t)); | |
5137 | ||
5138 | #endif | |
5139 | ||
5140 | alloc_counts[(int)alloc_type_lineno].total_alloc++; | |
5141 | *ptr = initial_lineno_list; | |
5142 | return ptr; | |
5143 | } | |
5144 | ||
17ed84ed | 5145 | void |
012353f7 KR |
5146 | ecoff_set_gp_prolog_size (sz) |
5147 | int sz; | |
5148 | { | |
5149 | if (cur_proc_ptr == 0) | |
22ba90ce | 5150 | return; |
012353f7 KR |
5151 | |
5152 | cur_proc_ptr->pdr.gp_prologue = sz; | |
5153 | if (cur_proc_ptr->pdr.gp_prologue != sz) | |
5154 | { | |
5155 | as_warn ("GP prologue size exceeds field size, using 0 instead"); | |
5156 | cur_proc_ptr->pdr.gp_prologue = 0; | |
5157 | } | |
5158 | ||
5159 | cur_proc_ptr->pdr.gp_used = 1; | |
5160 | } | |
5161 | ||
daad3bbf KH |
5162 | static void |
5163 | generate_ecoff_stab (what, string, type, other, desc) | |
5164 | int what; | |
5165 | const char *string; | |
5166 | int type; | |
5167 | int other; | |
5168 | int desc; | |
5169 | { | |
5170 | efdr_t *save_file_ptr = cur_file_ptr; | |
5171 | symbolS *sym; | |
5172 | symint_t value; | |
5173 | st_t st; | |
5174 | sc_t sc; | |
5175 | symint_t indx; | |
5176 | localsym_t *hold = NULL; | |
5177 | ||
5178 | /* We don't handle .stabd. */ | |
5179 | if (what != 's' && what != 'n') | |
5180 | { | |
5181 | as_bad (".stab%c is not supported", what); | |
5182 | return; | |
5183 | } | |
5184 | ||
5185 | /* We ignore the other field. */ | |
5186 | if (other != 0) | |
5187 | as_warn (".stab%c: ignoring non-zero other field", what); | |
5188 | ||
5189 | /* Make sure we have a current file. */ | |
5190 | if (cur_file_ptr == (efdr_t *) NULL) | |
5191 | { | |
d7b2038f | 5192 | add_file ((const char *) NULL, 0, 1); |
daad3bbf KH |
5193 | save_file_ptr = cur_file_ptr; |
5194 | } | |
5195 | ||
5196 | /* For stabs in ECOFF, the first symbol must be @stabs. This is a | |
5197 | signal to gdb. */ | |
5198 | if (stabs_seen == 0) | |
5199 | mark_stabs (0); | |
5200 | ||
5201 | /* Line number stabs are handled differently, since they have two | |
5202 | values, the line number and the address of the label. We use the | |
5203 | index field (aka desc) to hold the line number, and the value | |
5204 | field to hold the address. The symbol type is st_Label, which | |
5205 | should be different from the other stabs, so that gdb can | |
5206 | recognize it. */ | |
5207 | if (type == N_SLINE) | |
5208 | { | |
5209 | SYMR dummy_symr; | |
5210 | ||
5211 | #ifndef NO_LISTING | |
5212 | if (listing) | |
5213 | listing_source_line ((unsigned int) desc); | |
5214 | #endif | |
5215 | ||
5216 | dummy_symr.index = desc; | |
5217 | if (dummy_symr.index != desc) | |
5218 | { | |
5219 | as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)", | |
5220 | desc, what); | |
5221 | return; | |
5222 | } | |
5223 | ||
5224 | sym = symbol_find_or_make ((char *)string); | |
5225 | value = 0; | |
5226 | st = st_Label; | |
5227 | sc = sc_Text; | |
5228 | indx = desc; | |
5229 | } | |
5230 | else | |
5231 | { | |
5232 | #ifndef NO_LISTING | |
5233 | if (listing && (type == N_SO || type == N_SOL)) | |
5234 | listing_source_file (string); | |
5235 | #endif | |
5236 | ||
5237 | sym = symbol_find_or_make ((char *)string); | |
5238 | sc = sc_Nil; | |
5239 | st = st_Nil; | |
5240 | value = 0; | |
5241 | indx = ECOFF_MARK_STAB (type); | |
5242 | } | |
5243 | ||
5244 | /* Don't store the stabs symbol we are creating as the type of the | |
5245 | ECOFF symbol. We want to compute the type of the ECOFF symbol | |
5246 | independently. */ | |
5247 | if (sym != (symbolS *) NULL) | |
5248 | hold = sym->ecoff_symbol; | |
5249 | ||
5250 | (void) add_ecoff_symbol (string, st, sc, sym, value, indx); | |
5251 | ||
5252 | if (sym != (symbolS *) NULL) | |
5253 | sym->ecoff_symbol = hold; | |
5254 | ||
5255 | /* Restore normal file type. */ | |
5256 | cur_file_ptr = save_file_ptr; | |
5257 | } | |
5258 | ||
326d16ca KH |
5259 | int |
5260 | ecoff_no_current_file () | |
5261 | { | |
5262 | return cur_file_ptr == (efdr_t *) NULL; | |
5263 | } | |
5264 | ||
5265 | void | |
5266 | ecoff_generate_asm_lineno (filename, lineno) | |
22ba90ce ILT |
5267 | const char *filename; |
5268 | int lineno; | |
326d16ca KH |
5269 | { |
5270 | lineno_list_t *list; | |
5271 | ||
5272 | /* this potential can cause problem, when we start to see stab half the | |
5273 | way thru the file */ | |
5274 | /* | |
5275 | if (stabs_seen) | |
5276 | ecoff_generate_asm_line_stab(filename, lineno); | |
5277 | */ | |
5278 | ||
9da4c5d1 | 5279 | if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename)) |
326d16ca | 5280 | { |
d7b2038f | 5281 | add_file (filename, 0, 1); |
326d16ca KH |
5282 | generate_asm_lineno = 1; |
5283 | } | |
5284 | ||
5285 | list = allocate_lineno_list (); | |
5286 | ||
5287 | list->next = (lineno_list_t *) NULL; | |
5288 | list->file = cur_file_ptr; | |
5289 | list->proc = cur_proc_ptr; | |
5290 | list->frag = frag_now; | |
5291 | list->paddr = frag_now_fix (); | |
5292 | list->lineno = lineno; | |
5293 | ||
5294 | /* A .loc directive will sometimes appear before a .ent directive, | |
5295 | which means that cur_proc_ptr will be NULL here. Arrange to | |
5296 | patch this up. */ | |
5297 | if (cur_proc_ptr == (proc_t *) NULL) | |
5298 | { | |
5299 | lineno_list_t **pl; | |
5300 | ||
5301 | pl = &noproc_lineno; | |
5302 | while (*pl != (lineno_list_t *) NULL) | |
5303 | pl = &(*pl)->next; | |
5304 | *pl = list; | |
5305 | } | |
5306 | else | |
5307 | { | |
5308 | *last_lineno_ptr = list; | |
5309 | last_lineno_ptr = &list->next; | |
5310 | } | |
5311 | } | |
5312 | ||
daad3bbf KH |
5313 | static int line_label_cnt = 0; |
5314 | void | |
a2a1a548 ILT |
5315 | ecoff_generate_asm_line_stab (filename, lineno) |
5316 | char *filename; | |
daad3bbf KH |
5317 | int lineno; |
5318 | { | |
5319 | char *ll; | |
5320 | ||
a2a1a548 ILT |
5321 | if (strcmp (current_stabs_filename, filename)) |
5322 | { | |
d7b2038f | 5323 | add_file (filename, 0, 1); |
326d16ca | 5324 | generate_asm_lineno = 1; |
a2a1a548 ILT |
5325 | } |
5326 | ||
daad3bbf KH |
5327 | line_label_cnt++; |
5328 | /* generate local label $LMnn */ | |
5329 | ll = xmalloc(10); | |
5330 | sprintf(ll, "$LM%d", line_label_cnt); | |
5331 | colon (ll); | |
5332 | ||
5333 | /* generate stab for the line */ | |
5334 | generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno); | |
5335 | ||
5336 | } | |
5337 | ||
9faec336 | 5338 | #endif /* ECOFF_DEBUGGING */ |