1/* ECOFF debugging support. 2 Copyright (C) 1993-2017 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 3, 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 the Free 22 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 23 02110-1301, USA. */ 24 25#include "as.h" 26 27/* This file is compiled conditionally for those targets which use 28 ECOFF debugging information (e.g., MIPS ELF, Alpha ECOFF). */ 29 30#include "ecoff.h" 31 32#ifdef ECOFF_DEBUGGING 33 34#include "coff/internal.h" 35#include "coff/symconst.h" 36#include "aout/stab_gnu.h" 37#include "filenames.h" 38#include "safe-ctype.h" 39 40/* Why isn't this in coff/sym.h? */ 41#define ST_RFDESCAPE 0xfff 42 43/* This file constructs the information used by the ECOFF debugging 44 format. It just builds a large block of data. 45 46 We support both ECOFF style debugging and stabs debugging (the 47 stabs symbols are encapsulated in ECOFF symbols). This should let 48 us handle anything the compiler might throw at us. */ 49 50/* Here is a brief description of the MIPS ECOFF symbol table, by 51 Michael Meissner. The MIPS symbol table has the following pieces: 52 53 Symbolic Header 54 | 55 +-- Auxiliary Symbols 56 | 57 +-- Dense number table 58 | 59 +-- Optimizer Symbols 60 | 61 +-- External Strings 62 | 63 +-- External Symbols 64 | 65 +-- Relative file descriptors 66 | 67 +-- File table 68 | 69 +-- Procedure table 70 | 71 +-- Line number table 72 | 73 +-- Local Strings 74 | 75 +-- Local Symbols 76 77 The symbolic header points to each of the other tables, and also 78 contains the number of entries. It also contains a magic number 79 and MIPS compiler version number, such as 2.0. 80 81 The auxiliary table is a series of 32 bit integers, that are 82 referenced as needed from the local symbol table. Unlike standard 83 COFF, the aux. information does not follow the symbol that uses 84 it, but rather is a separate table. In theory, this would allow 85 the MIPS compilers to collapse duplicate aux. entries, but I've not 86 noticed this happening with the 1.31 compiler suite. The different 87 types of aux. entries are: 88 89 1) dnLow: Low bound on array dimension. 90 91 2) dnHigh: High bound on array dimension. 92 93 3) isym: Index to the local symbol which is the start of the 94 function for the end of function first aux. entry. 95 96 4) width: Width of structures and bitfields. 97 98 5) count: Count of ranges for variant part. 99 100 6) rndx: A relative index into the symbol table. The relative 101 index field has two parts: rfd which is a pointer into the 102 relative file index table or ST_RFDESCAPE which says the next 103 aux. entry is the file number, and index: which is the pointer 104 into the local symbol within a given file table. This is for 105 things like references to types defined in another file. 106 107 7) Type information: This is like the COFF type bits, except it 108 is 32 bits instead of 16; they still have room to add new 109 basic types; and they can handle more than 6 levels of array, 110 pointer, function, etc. Each type information field contains 111 the following structure members: 112 113 a) fBitfield: a bit that says this is a bitfield, and the 114 size in bits follows as the next aux. entry. 115 116 b) continued: a bit that says the next aux. entry is a 117 continuation of the current type information (in case 118 there are more than 6 levels of array/ptr/function). 119 120 c) bt: an integer containing the base type before adding 121 array, pointer, function, etc. qualifiers. The 122 current base types that I have documentation for are: 123 124 btNil -- undefined 125 btAdr -- address - integer same size as ptr 126 btChar -- character 127 btUChar -- unsigned character 128 btShort -- short 129 btUShort -- unsigned short 130 btInt -- int 131 btUInt -- unsigned int 132 btLong -- long 133 btULong -- unsigned long 134 btFloat -- float (real) 135 btDouble -- Double (real) 136 btStruct -- Structure (Record) 137 btUnion -- Union (variant) 138 btEnum -- Enumerated 139 btTypedef -- defined via a typedef isymRef 140 btRange -- subrange of int 141 btSet -- pascal sets 142 btComplex -- fortran complex 143 btDComplex -- fortran double complex 144 btIndirect -- forward or unnamed typedef 145 btFixedDec -- Fixed Decimal 146 btFloatDec -- Float Decimal 147 btString -- Varying Length Character String 148 btBit -- Aligned Bit String 149 btPicture -- Picture 150 btVoid -- Void (MIPS cc revision >= 2.00) 151 152 d) tq0 - tq5: type qualifier fields as needed. The 153 current type qualifier fields I have documentation for 154 are: 155 156 tqNil -- no more qualifiers 157 tqPtr -- pointer 158 tqProc -- procedure 159 tqArray -- array 160 tqFar -- 8086 far pointers 161 tqVol -- volatile 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 For the following program: 258 259 #include <stdio.h> 260 261 main(){ 262 printf("Hello World!\n"); 263 return 0; 264 } 265 266 Mips-tdump produces the following information: 267 268 Global file header: 269 magic number 0x162 270 # sections 2 271 timestamp 645311799, Wed Jun 13 17:16:39 1990 272 symbolic header offset 284 273 symbolic header size 96 274 optional header 56 275 flags 0x0 276 277 Symbolic header, magic number = 0x7009, vstamp = 1.31: 278 279 Info Offset Number Bytes 280 ==== ====== ====== ===== 281 282 Line numbers 380 4 4 [13] 283 Dense numbers 0 0 0 284 Procedures Tables 384 1 52 285 Local Symbols 436 16 192 286 Optimization Symbols 0 0 0 287 Auxiliary Symbols 628 39 156 288 Local Strings 784 80 80 289 External Strings 864 144 144 290 File Tables 1008 2 144 291 Relative Files 0 0 0 292 External Symbols 1152 20 320 293 294 File #0, "hello2.c" 295 296 Name index = 1 Readin = No 297 Merge = No Endian = LITTLE 298 Debug level = G2 Language = C 299 Adr = 0x00000000 300 301 Info Start Number Size Offset 302 ==== ===== ====== ==== ====== 303 Local strings 0 15 15 784 304 Local symbols 0 6 72 436 305 Line numbers 0 13 13 380 306 Optimization symbols 0 0 0 0 307 Procedures 0 1 52 384 308 Auxiliary symbols 0 14 56 628 309 Relative Files 0 0 0 0 310 311 There are 6 local symbols, starting at 436 312 313 Symbol# 0: "hello2.c" 314 End+1 symbol = 6 315 String index = 1 316 Storage class = Text Index = 6 317 Symbol type = File Value = 0 318 319 Symbol# 1: "main" 320 End+1 symbol = 5 321 Type = int 322 String index = 10 323 Storage class = Text Index = 12 324 Symbol type = Proc Value = 0 325 326 Symbol# 2: "" 327 End+1 symbol = 4 328 String index = 0 329 Storage class = Text Index = 4 330 Symbol type = Block Value = 8 331 332 Symbol# 3: "" 333 First symbol = 2 334 String index = 0 335 Storage class = Text Index = 2 336 Symbol type = End Value = 28 337 338 Symbol# 4: "main" 339 First symbol = 1 340 String index = 10 341 Storage class = Text Index = 1 342 Symbol type = End Value = 52 343 344 Symbol# 5: "hello2.c" 345 First symbol = 0 346 String index = 1 347 Storage class = Text Index = 0 348 Symbol type = End Value = 0 349 350 There are 14 auxiliary table entries, starting at 628. 351 352 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 353 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 354 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] 355 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] 356 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 357 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] 358 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] 359 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] 360 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] 361 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] 362 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] 363 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] 364 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] 365 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 366 367 There are 1 procedure descriptor entries, starting at 0. 368 369 Procedure descriptor 0: 370 Name index = 10 Name = "main" 371 .mask 0x80000000,-4 .fmask 0x00000000,0 372 .frame $29,24,$31 373 Opt. start = -1 Symbols start = 1 374 First line # = 3 Last line # = 6 375 Line Offset = 0 Address = 0x00000000 376 377 There are 4 bytes holding line numbers, starting at 380. 378 Line 3, delta 0, count 2 379 Line 4, delta 1, count 3 380 Line 5, delta 1, count 2 381 Line 6, delta 1, count 6 382 383 File #1, "/usr/include/stdio.h" 384 385 Name index = 1 Readin = No 386 Merge = Yes Endian = LITTLE 387 Debug level = G2 Language = C 388 Adr = 0x00000000 389 390 Info Start Number Size Offset 391 ==== ===== ====== ==== ====== 392 Local strings 15 65 65 799 393 Local symbols 6 10 120 508 394 Line numbers 0 0 0 380 395 Optimization symbols 0 0 0 0 396 Procedures 1 0 0 436 397 Auxiliary symbols 14 25 100 684 398 Relative Files 0 0 0 0 399 400 There are 10 local symbols, starting at 442 401 402 Symbol# 0: "/usr/include/stdio.h" 403 End+1 symbol = 10 404 String index = 1 405 Storage class = Text Index = 10 406 Symbol type = File Value = 0 407 408 Symbol# 1: "_iobuf" 409 End+1 symbol = 9 410 String index = 22 411 Storage class = Info Index = 9 412 Symbol type = Block Value = 20 413 414 Symbol# 2: "_cnt" 415 Type = int 416 String index = 29 417 Storage class = Info Index = 4 418 Symbol type = Member Value = 0 419 420 Symbol# 3: "_ptr" 421 Type = ptr to char 422 String index = 34 423 Storage class = Info Index = 15 424 Symbol type = Member Value = 32 425 426 Symbol# 4: "_base" 427 Type = ptr to char 428 String index = 39 429 Storage class = Info Index = 16 430 Symbol type = Member Value = 64 431 432 Symbol# 5: "_bufsiz" 433 Type = int 434 String index = 45 435 Storage class = Info Index = 4 436 Symbol type = Member Value = 96 437 438 Symbol# 6: "_flag" 439 Type = short 440 String index = 53 441 Storage class = Info Index = 3 442 Symbol type = Member Value = 128 443 444 Symbol# 7: "_file" 445 Type = char 446 String index = 59 447 Storage class = Info Index = 2 448 Symbol type = Member Value = 144 449 450 Symbol# 8: "" 451 First symbol = 1 452 String index = 0 453 Storage class = Info Index = 1 454 Symbol type = End Value = 0 455 456 Symbol# 9: "/usr/include/stdio.h" 457 First symbol = 0 458 String index = 1 459 Storage class = Text Index = 0 460 Symbol type = End Value = 0 461 462 There are 25 auxiliary table entries, starting at 642. 463 464 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] 465 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] 466 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] 467 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] 468 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] 469 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] 470 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] 471 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] 472 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 473 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] 474 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] 475 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 476 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 477 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 478 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 479 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 480 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 481 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 482 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 483 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 484 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 485 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 486 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 487 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 488 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 489 490 There are 0 procedure descriptor entries, starting at 1. 491 492 There are 20 external symbols, starting at 1152 493 494 Symbol# 0: "_iob" 495 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } 496 String index = 0 Ifd = 1 497 Storage class = Nil Index = 17 498 Symbol type = Global Value = 60 499 500 Symbol# 1: "fopen" 501 String index = 5 Ifd = 1 502 Storage class = Nil Index = 1048575 503 Symbol type = Proc Value = 0 504 505 Symbol# 2: "fdopen" 506 String index = 11 Ifd = 1 507 Storage class = Nil Index = 1048575 508 Symbol type = Proc Value = 0 509 510 Symbol# 3: "freopen" 511 String index = 18 Ifd = 1 512 Storage class = Nil Index = 1048575 513 Symbol type = Proc Value = 0 514 515 Symbol# 4: "popen" 516 String index = 26 Ifd = 1 517 Storage class = Nil Index = 1048575 518 Symbol type = Proc Value = 0 519 520 Symbol# 5: "tmpfile" 521 String index = 32 Ifd = 1 522 Storage class = Nil Index = 1048575 523 Symbol type = Proc Value = 0 524 525 Symbol# 6: "ftell" 526 String index = 40 Ifd = 1 527 Storage class = Nil Index = 1048575 528 Symbol type = Proc Value = 0 529 530 Symbol# 7: "rewind" 531 String index = 46 Ifd = 1 532 Storage class = Nil Index = 1048575 533 Symbol type = Proc Value = 0 534 535 Symbol# 8: "setbuf" 536 String index = 53 Ifd = 1 537 Storage class = Nil Index = 1048575 538 Symbol type = Proc Value = 0 539 540 Symbol# 9: "setbuffer" 541 String index = 60 Ifd = 1 542 Storage class = Nil Index = 1048575 543 Symbol type = Proc Value = 0 544 545 Symbol# 10: "setlinebuf" 546 String index = 70 Ifd = 1 547 Storage class = Nil Index = 1048575 548 Symbol type = Proc Value = 0 549 550 Symbol# 11: "fgets" 551 String index = 81 Ifd = 1 552 Storage class = Nil Index = 1048575 553 Symbol type = Proc Value = 0 554 555 Symbol# 12: "gets" 556 String index = 87 Ifd = 1 557 Storage class = Nil Index = 1048575 558 Symbol type = Proc Value = 0 559 560 Symbol# 13: "ctermid" 561 String index = 92 Ifd = 1 562 Storage class = Nil Index = 1048575 563 Symbol type = Proc Value = 0 564 565 Symbol# 14: "cuserid" 566 String index = 100 Ifd = 1 567 Storage class = Nil Index = 1048575 568 Symbol type = Proc Value = 0 569 570 Symbol# 15: "tempnam" 571 String index = 108 Ifd = 1 572 Storage class = Nil Index = 1048575 573 Symbol type = Proc Value = 0 574 575 Symbol# 16: "tmpnam" 576 String index = 116 Ifd = 1 577 Storage class = Nil Index = 1048575 578 Symbol type = Proc Value = 0 579 580 Symbol# 17: "sprintf" 581 String index = 123 Ifd = 1 582 Storage class = Nil Index = 1048575 583 Symbol type = Proc Value = 0 584 585 Symbol# 18: "main" 586 Type = int 587 String index = 131 Ifd = 0 588 Storage class = Text Index = 1 589 Symbol type = Proc Value = 0 590 591 Symbol# 19: "printf" 592 String index = 136 Ifd = 0 593 Storage class = Undefined Index = 1048575 594 Symbol type = Proc Value = 0 595 596 The following auxiliary table entries were unused: 597 598 #0 0 0x00000000 void 599 #2 8 0x00000008 char 600 #3 16 0x00000010 short 601 #4 24 0x00000018 int 602 #5 32 0x00000020 long 603 #6 40 0x00000028 float 604 #7 44 0x0000002c double 605 #8 12 0x0000000c unsigned char 606 #9 20 0x00000014 unsigned short 607 #10 28 0x0000001c unsigned int 608 #11 36 0x00000024 unsigned long 609 #14 0 0x00000000 void 610 #15 24 0x00000018 int 611 #19 32 0x00000020 long 612 #20 40 0x00000028 float 613 #21 44 0x0000002c double 614 #22 12 0x0000000c unsigned char 615 #23 20 0x00000014 unsigned short 616 #24 28 0x0000001c unsigned int 617 #25 36 0x00000024 unsigned long 618 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } 619*/ 620 621/* Redefinition of of storage classes as an enumeration for better 622 debugging. */ 623 624typedef enum sc { 625 sc_Nil = scNil, /* no storage class */ 626 sc_Text = scText, /* text symbol */ 627 sc_Data = scData, /* initialized data symbol */ 628 sc_Bss = scBss, /* un-initialized data symbol */ 629 sc_Register = scRegister, /* value of symbol is register number */ 630 sc_Abs = scAbs, /* value of symbol is absolute */ 631 sc_Undefined = scUndefined, /* who knows? */ 632 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ 633 sc_Bits = scBits, /* this is a bit field */ 634 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ 635 sc_RegImage = scRegImage, /* register value saved on stack */ 636 sc_Info = scInfo, /* symbol contains debugger information */ 637 sc_UserStruct = scUserStruct, /* addr in struct user for current process */ 638 sc_SData = scSData, /* load time only small data */ 639 sc_SBss = scSBss, /* load time only small common */ 640 sc_RData = scRData, /* load time only read only data */ 641 sc_Var = scVar, /* Var parameter (fortran,pascal) */ 642 sc_Common = scCommon, /* common variable */ 643 sc_SCommon = scSCommon, /* small common */ 644 sc_VarRegister = scVarRegister, /* Var parameter in a register */ 645 sc_Variant = scVariant, /* Variant record */ 646 sc_SUndefined = scSUndefined, /* small undefined(external) data */ 647 sc_Init = scInit, /* .init section symbol */ 648 sc_Max = scMax /* Max storage class+1 */ 649} sc_t; 650 651/* Redefinition of symbol type. */ 652 653typedef enum st { 654 st_Nil = stNil, /* Nuthin' special */ 655 st_Global = stGlobal, /* external symbol */ 656 st_Static = stStatic, /* static */ 657 st_Param = stParam, /* procedure argument */ 658 st_Local = stLocal, /* local variable */ 659 st_Label = stLabel, /* label */ 660 st_Proc = stProc, /* " " Procedure */ 661 st_Block = stBlock, /* beginning of block */ 662 st_End = stEnd, /* end (of anything) */ 663 st_Member = stMember, /* member (of anything - struct/union/enum */ 664 st_Typedef = stTypedef, /* type definition */ 665 st_File = stFile, /* file name */ 666 st_RegReloc = stRegReloc, /* register relocation */ 667 st_Forward = stForward, /* forwarding address */ 668 st_StaticProc = stStaticProc, /* load time only static procs */ 669 st_Constant = stConstant, /* const */ 670 st_Str = stStr, /* string */ 671 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ 672 st_Expr = stExpr, /* 2+2 vs. 4 */ 673 st_Type = stType, /* post-coercion SER */ 674 st_Max = stMax /* max type+1 */ 675} st_t; 676 677/* Redefinition of type qualifiers. */ 678 679typedef enum tq { 680 tq_Nil = tqNil, /* bt is what you see */ 681 tq_Ptr = tqPtr, /* pointer */ 682 tq_Proc = tqProc, /* procedure */ 683 tq_Array = tqArray, /* duh */ 684 tq_Far = tqFar, /* longer addressing - 8086/8 land */ 685 tq_Vol = tqVol, /* volatile */ 686 tq_Max = tqMax /* Max type qualifier+1 */ 687} tq_t; 688 689/* Redefinition of basic types. */ 690 691typedef enum bt { 692 bt_Nil = btNil, /* undefined */ 693 bt_Adr = btAdr, /* address - integer same size as pointer */ 694 bt_Char = btChar, /* character */ 695 bt_UChar = btUChar, /* unsigned character */ 696 bt_Short = btShort, /* short */ 697 bt_UShort = btUShort, /* unsigned short */ 698 bt_Int = btInt, /* int */ 699 bt_UInt = btUInt, /* unsigned int */ 700 bt_Long = btLong, /* long */ 701 bt_ULong = btULong, /* unsigned long */ 702 bt_Float = btFloat, /* float (real) */ 703 bt_Double = btDouble, /* Double (real) */ 704 bt_Struct = btStruct, /* Structure (Record) */ 705 bt_Union = btUnion, /* Union (variant) */ 706 bt_Enum = btEnum, /* Enumerated */ 707 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ 708 bt_Range = btRange, /* subrange of int */ 709 bt_Set = btSet, /* pascal sets */ 710 bt_Complex = btComplex, /* fortran complex */ 711 bt_DComplex = btDComplex, /* fortran double complex */ 712 bt_Indirect = btIndirect, /* forward or unnamed typedef */ 713 bt_FixedDec = btFixedDec, /* Fixed Decimal */ 714 bt_FloatDec = btFloatDec, /* Float Decimal */ 715 bt_String = btString, /* Varying Length Character String */ 716 bt_Bit = btBit, /* Aligned Bit String */ 717 bt_Picture = btPicture, /* Picture */ 718 bt_Void = btVoid, /* Void */ 719 bt_Max = btMax /* Max basic type+1 */ 720} bt_t; 721 722#define N_TQ itqMax 723 724/* States for whether to hash type or not. */ 725typedef enum hash_state { 726 hash_no = 0, /* Don't hash type */ 727 hash_yes = 1, /* OK to hash type, or use previous hash */ 728 hash_record = 2 /* OK to record hash, but don't use prev. */ 729} hash_state_t; 730 731/* Types of different sized allocation requests. */ 732enum alloc_type { 733 alloc_type_none, /* dummy value */ 734 alloc_type_scope, /* nested scopes linked list */ 735 alloc_type_vlinks, /* glue linking pages in varray */ 736 alloc_type_shash, /* string hash element */ 737 alloc_type_thash, /* type hash element */ 738 alloc_type_tag, /* struct/union/tag element */ 739 alloc_type_forward, /* element to hold unknown tag */ 740 alloc_type_thead, /* head of type hash list */ 741 alloc_type_varray, /* general varray allocation */ 742 alloc_type_lineno, /* line number list */ 743 alloc_type_last /* last+1 element for array bounds */ 744}; 745 746/* Types of auxiliary type information. */ 747enum aux_type { 748 aux_tir, /* TIR type information */ 749 aux_rndx, /* relative index into symbol table */ 750 aux_dnLow, /* low dimension */ 751 aux_dnHigh, /* high dimension */ 752 aux_isym, /* symbol table index (end of proc) */ 753 aux_iss, /* index into string space (not used) */ 754 aux_width, /* width for non-default sized struc fields */ 755 aux_count /* count of ranges for variant arm */ 756}; 757 758/* Structures to provide n-number of virtual arrays, each of which can 759 grow linearly, and which are written in the object file as 760 sequential pages. On systems with a BSD malloc, the 761 MAX_CLUSTER_PAGES should be 1 less than a power of two, since 762 malloc adds it's overhead, and rounds up to the next power of 2. 763 Pages are linked together via a linked list. 764 765 If PAGE_SIZE is > 4096, the string length in the shash_t structure 766 can't be represented (assuming there are strings > 4096 bytes). */ 767 768/* FIXME: Yes, there can be such strings while emitting C++ class debug 769 info. Templates are the offender here, the test case in question 770 having a mangled class name of 771 772 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\ 773 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey 774 775 Repeat that a couple dozen times while listing the class members and 776 you've got strings over 4k. Hack around this for now by increasing 777 the page size. A proper solution would abandon this structure scheme 778 certainly for very large strings, and possibly entirely. */ 779 780#ifndef PAGE_SIZE 781#define PAGE_SIZE (8*1024) /* size of varray pages */ 782#endif 783 784#define PAGE_USIZE ((unsigned long) PAGE_SIZE) 785 786#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ 787#define MAX_CLUSTER_PAGES 63 788#endif 789 790/* Linked list connecting separate page allocations. */ 791typedef struct vlinks { 792 struct vlinks *prev; /* previous set of pages */ 793 struct vlinks *next; /* next set of pages */ 794 union page *datum; /* start of page */ 795 unsigned long start_index; /* starting index # of page */ 796} vlinks_t; 797 798/* Virtual array header. */ 799typedef struct varray { 800 vlinks_t *first; /* first page link */ 801 vlinks_t *last; /* last page link */ 802 unsigned long num_allocated; /* # objects allocated */ 803 unsigned short object_size; /* size in bytes of each object */ 804 unsigned short objects_per_page; /* # objects that can fit on a page */ 805 unsigned short objects_last_page; /* # objects allocated on last page */ 806} varray_t; 807 808#ifndef MALLOC_CHECK 809#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) 810#else 811#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) 812#endif 813 814#define INIT_VARRAY(type) { /* macro to initialize a varray */ \ 815 (vlinks_t *)0, /* first */ \ 816 (vlinks_t *)0, /* last */ \ 817 0, /* num_allocated */ \ 818 sizeof (type), /* object_size */ \ 819 OBJECTS_PER_PAGE (type), /* objects_per_page */ \ 820 OBJECTS_PER_PAGE (type), /* objects_last_page */ \ 821} 822 823/* Master type for indexes within the symbol table. */ 824typedef unsigned long symint_t; 825 826/* Linked list support for nested scopes (file, block, structure, etc.). */ 827typedef struct scope { 828 struct scope *prev; /* previous scope level */ 829 struct scope *free; /* free list pointer */ 830 struct localsym *lsym; /* pointer to local symbol node */ 831 st_t type; /* type of the node */ 832} scope_t; 833 834/* For a local symbol we store a gas symbol as well as the debugging 835 information we generate. The gas symbol will be NULL if this is 836 only a debugging symbol. */ 837typedef struct localsym { 838 const char *name; /* symbol name */ 839 symbolS *as_sym; /* symbol as seen by gas */ 840 bfd_vma addend; /* addend to as_sym value */ 841 struct efdr *file_ptr; /* file pointer */ 842 struct ecoff_proc *proc_ptr; /* proc pointer */ 843 struct localsym *begin_ptr; /* symbol at start of block */ 844 struct ecoff_aux *index_ptr; /* index value to be filled in */ 845 struct forward *forward_ref; /* forward references to this symbol */ 846 long sym_index; /* final symbol index */ 847 EXTR ecoff_sym; /* ECOFF debugging symbol */ 848} localsym_t; 849 850/* For aux information we keep the type and the data. */ 851typedef struct ecoff_aux { 852 enum aux_type type; /* aux type */ 853 AUXU data; /* aux data */ 854} aux_t; 855 856/* For a procedure we store the gas symbol as well as the PDR 857 debugging information. */ 858typedef struct ecoff_proc { 859 localsym_t *sym; /* associated symbol */ 860 PDR pdr; /* ECOFF debugging info */ 861} proc_t; 862 863/* Number of proc_t structures allocated. */ 864static unsigned long proc_cnt; 865 866/* Forward reference list for tags referenced, but not yet defined. */ 867typedef struct forward { 868 struct forward *next; /* next forward reference */ 869 struct forward *free; /* free list pointer */ 870 aux_t *ifd_ptr; /* pointer to store file index */ 871 aux_t *index_ptr; /* pointer to store symbol index */ 872} forward_t; 873 874/* Linked list support for tags. The first tag in the list is always 875 the current tag for that block. */ 876typedef struct tag { 877 struct tag *free; /* free list pointer */ 878 struct shash *hash_ptr; /* pointer to the hash table head */ 879 struct tag *same_name; /* tag with same name in outer scope */ 880 struct tag *same_block; /* next tag defined in the same block. */ 881 struct forward *forward_ref; /* list of forward references */ 882 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ 883 symint_t ifd; /* file # tag defined in */ 884 localsym_t *sym; /* file's local symbols */ 885} tag_t; 886 887/* Head of a block's linked list of tags. */ 888typedef struct thead { 889 struct thead *prev; /* previous block */ 890 struct thead *free; /* free list pointer */ 891 struct tag *first_tag; /* first tag in block defined */ 892} thead_t; 893 894/* Union containing pointers to each the small structures which are freed up. */ 895typedef union small_free { 896 scope_t *f_scope; /* scope structure */ 897 thead_t *f_thead; /* tag head structure */ 898 tag_t *f_tag; /* tag element structure */ 899 forward_t *f_forward; /* forward tag reference */ 900} small_free_t; 901 902/* String hash table entry. */ 903 904typedef 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/* Type hash table support. The size of the hash table must fit 915 within a page with the other extended file descriptor information. 916 Because unique types which are hashed are fewer in number than 917 strings, we use a smaller hash value. */ 918 919#define HASHBITS 30 920 921#ifndef THASH_SIZE 922#define THASH_SIZE 113 923#endif 924 925typedef struct thash { 926 struct thash *next; /* next hash value */ 927 AUXU type; /* type we are hashing */ 928 symint_t indx; /* index within string table */ 929} thash_t; 930 931/* Extended file descriptor that contains all of the support necessary 932 to add things to each file separately. */ 933typedef struct efdr { 934 FDR fdr; /* File header to be written out */ 935 FDR *orig_fdr; /* original file header */ 936 char *name; /* filename */ 937 int fake; /* whether this is faked .file */ 938 symint_t void_type; /* aux. pointer to 'void' type */ 939 symint_t int_type; /* aux. pointer to 'int' type */ 940 scope_t *cur_scope; /* current nested scopes */ 941 symint_t file_index; /* current file number */ 942 int nested_scopes; /* # nested scopes */ 943 varray_t strings; /* local strings */ 944 varray_t symbols; /* local symbols */ 945 varray_t procs; /* procedures */ 946 varray_t aux_syms; /* auxiliary symbols */ 947 struct efdr *next_file; /* next file descriptor */ 948 /* string/type hash tables */ 949 struct hash_control *str_hash; /* string hash table */ 950 thash_t *thash_head[THASH_SIZE]; 951} efdr_t; 952 953/* Pre-initialized extended file structure. */ 954static const efdr_t init_file = { 955 { /* FDR structure */ 956 0, /* adr: memory address of beginning of file */ 957 0, /* rss: file name (of source, if known) */ 958 0, /* issBase: file's string space */ 959 0, /* cbSs: number of bytes in the ss */ 960 0, /* isymBase: beginning of symbols */ 961 0, /* csym: count file's of symbols */ 962 0, /* ilineBase: file's line symbols */ 963 0, /* cline: count of file's line symbols */ 964 0, /* ioptBase: file's optimization entries */ 965 0, /* copt: count of file's optimization entries */ 966 0, /* ipdFirst: start of procedures for this file */ 967 0, /* cpd: count of procedures for this file */ 968 0, /* iauxBase: file's auxiliary entries */ 969 0, /* caux: count of file's auxiliary entries */ 970 0, /* rfdBase: index into the file indirect table */ 971 0, /* crfd: count file indirect entries */ 972 langC, /* lang: language for this file */ 973 1, /* fMerge: whether this file can be merged */ 974 0, /* fReadin: true if read in (not just created) */ 975 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */ 976 GLEVEL_2, /* glevel: level this file was compiled with */ 977 0, /* reserved: reserved for future use */ 978 0, /* cbLineOffset: byte offset from header for this file ln's */ 979 0, /* cbLine: size of lines for this file */ 980 }, 981 982 (FDR *)0, /* orig_fdr: original file header pointer */ 983 (char *)0, /* name: pointer to filename */ 984 0, /* fake: whether this is a faked .file */ 985 0, /* void_type: ptr to aux node for void type */ 986 0, /* int_type: ptr to aux node for int type */ 987 (scope_t *)0, /* cur_scope: current scope being processed */ 988 0, /* file_index: current file # */ 989 0, /* nested_scopes: # nested scopes */ 990 INIT_VARRAY (char), /* strings: local string varray */ 991 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */ 992 INIT_VARRAY (proc_t), /* procs: procedure varray */ 993 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */ 994 995 (struct efdr *)0, /* next_file: next file structure */ 996 997 (struct hash_control *)0, /* str_hash: string hash table */ 998 { 0 }, /* thash_head: type hash table */ 999}; 1000 1001static efdr_t *first_file; /* first file descriptor */ 1002static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ 1003 1004/* Line number information is kept in a list until the assembly is 1005 finished. */ 1006typedef struct lineno_list { 1007 struct lineno_list *next; /* next element in list */ 1008 efdr_t *file; /* file this line is in */ 1009 proc_t *proc; /* procedure this line is in */ 1010 fragS *frag; /* fragment this line number is in */ 1011 unsigned long paddr; /* offset within fragment */ 1012 long lineno; /* actual line number */ 1013} lineno_list_t; 1014 1015static lineno_list_t *first_lineno; 1016static lineno_list_t *last_lineno; 1017static lineno_list_t **last_lineno_ptr = &first_lineno; 1018 1019/* Sometimes there will be some .loc statements before a .ent. We 1020 keep them in this list so that we can fill in the procedure pointer 1021 after we see the .ent. */ 1022static lineno_list_t *noproc_lineno; 1023 1024/* Union of various things that are held in pages. */ 1025typedef union page { 1026 char byte [ PAGE_SIZE ]; 1027 unsigned char ubyte [ PAGE_SIZE ]; 1028 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; 1029 FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; 1030 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ]; 1031 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ]; 1032 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ]; 1033 DNR dense [ PAGE_SIZE / sizeof (DNR) ]; 1034 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; 1035 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; 1036 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; 1037 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; 1038 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; 1039 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; 1040 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; 1041 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ]; 1042} page_type; 1043 1044/* Structure holding allocation information for small sized structures. */ 1045typedef struct alloc_info { 1046 char *alloc_name; /* name of this allocation type (must be first) */ 1047 page_type *cur_page; /* current page being allocated from */ 1048 small_free_t free_list; /* current free list if any */ 1049 int unallocated; /* number of elements unallocated on page */ 1050 int total_alloc; /* total number of allocations */ 1051 int total_free; /* total number of frees */ 1052 int total_pages; /* total number of pages allocated */ 1053} alloc_info_t; 1054 1055/* Type information collected together. */ 1056typedef struct type_info { 1057 bt_t basic_type; /* basic type */ 1058 int orig_type; /* original COFF-based type */ 1059 int num_tq; /* # type qualifiers */ 1060 int num_dims; /* # dimensions */ 1061 int num_sizes; /* # sizes */ 1062 int extra_sizes; /* # extra sizes not tied with dims */ 1063 tag_t * tag_ptr; /* tag pointer */ 1064 int bitfield; /* symbol is a bitfield */ 1065 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ 1066 symint_t dimensions [N_TQ]; /* dimensions for each array */ 1067 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of 1068 struct/union/enum + bitfield size */ 1069} type_info_t; 1070 1071/* Pre-initialized type_info struct. */ 1072static const type_info_t type_info_init = { 1073 bt_Nil, /* basic type */ 1074 T_NULL, /* original COFF-based type */ 1075 0, /* # type qualifiers */ 1076 0, /* # dimensions */ 1077 0, /* # sizes */ 1078 0, /* sizes not tied with dims */ 1079 NULL, /* ptr to tag */ 1080 0, /* bitfield */ 1081 { /* type qualifiers */ 1082 tq_Nil, 1083 tq_Nil, 1084 tq_Nil, 1085 tq_Nil, 1086 tq_Nil, 1087 tq_Nil, 1088 }, 1089 { /* dimensions */ 1090 0, 1091 0, 1092 0, 1093 0, 1094 0, 1095 0 1096 }, 1097 { /* sizes */ 1098 0, 1099 0, 1100 0, 1101 0, 1102 0, 1103 0, 1104 0, 1105 0, 1106 }, 1107}; 1108 1109/* Global hash table for the tags table and global table for file 1110 descriptors. */ 1111 1112static varray_t file_desc = INIT_VARRAY (efdr_t); 1113 1114static struct hash_control *tag_hash; 1115 1116/* Static types for int and void. Also, remember the last function's 1117 type (which is set up when we encounter the declaration for the 1118 function, and used when the end block for the function is emitted. */ 1119 1120static type_info_t int_type_info; 1121static type_info_t void_type_info; 1122static type_info_t last_func_type_info; 1123static symbolS *last_func_sym_value; 1124 1125/* Convert COFF basic type to ECOFF basic type. The T_NULL type 1126 really should use bt_Void, but this causes the current ecoff GDB to 1127 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS 1128 2.0) doesn't understand it, even though the compiler generates it. 1129 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler 1130 suite, but for now go with what works. 1131 1132 It would make sense for the .type and .scl directives to use the 1133 ECOFF numbers directly, rather than using the COFF numbers and 1134 mapping them. Unfortunately, this is historically what mips-tfile 1135 expects, and changing gcc now would be a considerable pain (the 1136 native compiler generates debugging information internally, rather 1137 than via the assembler, so it will never use .type or .scl). */ 1138 1139static const bt_t map_coff_types[] = { 1140 bt_Nil, /* T_NULL */ 1141 bt_Nil, /* T_ARG */ 1142 bt_Char, /* T_CHAR */ 1143 bt_Short, /* T_SHORT */ 1144 bt_Int, /* T_INT */ 1145 bt_Long, /* T_LONG */ 1146 bt_Float, /* T_FLOAT */ 1147 bt_Double, /* T_DOUBLE */ 1148 bt_Struct, /* T_STRUCT */ 1149 bt_Union, /* T_UNION */ 1150 bt_Enum, /* T_ENUM */ 1151 bt_Enum, /* T_MOE */ 1152 bt_UChar, /* T_UCHAR */ 1153 bt_UShort, /* T_USHORT */ 1154 bt_UInt, /* T_UINT */ 1155 bt_ULong /* T_ULONG */ 1156}; 1157 1158/* Convert COFF storage class to ECOFF storage class. */ 1159static const sc_t map_coff_storage[] = { 1160 sc_Nil, /* 0: C_NULL */ 1161 sc_Abs, /* 1: C_AUTO auto var */ 1162 sc_Undefined, /* 2: C_EXT external */ 1163 sc_Data, /* 3: C_STAT static */ 1164 sc_Register, /* 4: C_REG register */ 1165 sc_Undefined, /* 5: C_EXTDEF ??? */ 1166 sc_Text, /* 6: C_LABEL label */ 1167 sc_Text, /* 7: C_ULABEL user label */ 1168 sc_Info, /* 8: C_MOS member of struct */ 1169 sc_Abs, /* 9: C_ARG argument */ 1170 sc_Info, /* 10: C_STRTAG struct tag */ 1171 sc_Info, /* 11: C_MOU member of union */ 1172 sc_Info, /* 12: C_UNTAG union tag */ 1173 sc_Info, /* 13: C_TPDEF typedef */ 1174 sc_Data, /* 14: C_USTATIC ??? */ 1175 sc_Info, /* 15: C_ENTAG enum tag */ 1176 sc_Info, /* 16: C_MOE member of enum */ 1177 sc_Register, /* 17: C_REGPARM register parameter */ 1178 sc_Bits, /* 18; C_FIELD bitfield */ 1179 sc_Nil, /* 19 */ 1180 sc_Nil, /* 20 */ 1181 sc_Nil, /* 21 */ 1182 sc_Nil, /* 22 */ 1183 sc_Nil, /* 23 */ 1184 sc_Nil, /* 24 */ 1185 sc_Nil, /* 25 */ 1186 sc_Nil, /* 26 */ 1187 sc_Nil, /* 27 */ 1188 sc_Nil, /* 28 */ 1189 sc_Nil, /* 29 */ 1190 sc_Nil, /* 30 */ 1191 sc_Nil, /* 31 */ 1192 sc_Nil, /* 32 */ 1193 sc_Nil, /* 33 */ 1194 sc_Nil, /* 34 */ 1195 sc_Nil, /* 35 */ 1196 sc_Nil, /* 36 */ 1197 sc_Nil, /* 37 */ 1198 sc_Nil, /* 38 */ 1199 sc_Nil, /* 39 */ 1200 sc_Nil, /* 40 */ 1201 sc_Nil, /* 41 */ 1202 sc_Nil, /* 42 */ 1203 sc_Nil, /* 43 */ 1204 sc_Nil, /* 44 */ 1205 sc_Nil, /* 45 */ 1206 sc_Nil, /* 46 */ 1207 sc_Nil, /* 47 */ 1208 sc_Nil, /* 48 */ 1209 sc_Nil, /* 49 */ 1210 sc_Nil, /* 50 */ 1211 sc_Nil, /* 51 */ 1212 sc_Nil, /* 52 */ 1213 sc_Nil, /* 53 */ 1214 sc_Nil, /* 54 */ 1215 sc_Nil, /* 55 */ 1216 sc_Nil, /* 56 */ 1217 sc_Nil, /* 57 */ 1218 sc_Nil, /* 58 */ 1219 sc_Nil, /* 59 */ 1220 sc_Nil, /* 60 */ 1221 sc_Nil, /* 61 */ 1222 sc_Nil, /* 62 */ 1223 sc_Nil, /* 63 */ 1224 sc_Nil, /* 64 */ 1225 sc_Nil, /* 65 */ 1226 sc_Nil, /* 66 */ 1227 sc_Nil, /* 67 */ 1228 sc_Nil, /* 68 */ 1229 sc_Nil, /* 69 */ 1230 sc_Nil, /* 70 */ 1231 sc_Nil, /* 71 */ 1232 sc_Nil, /* 72 */ 1233 sc_Nil, /* 73 */ 1234 sc_Nil, /* 74 */ 1235 sc_Nil, /* 75 */ 1236 sc_Nil, /* 76 */ 1237 sc_Nil, /* 77 */ 1238 sc_Nil, /* 78 */ 1239 sc_Nil, /* 79 */ 1240 sc_Nil, /* 80 */ 1241 sc_Nil, /* 81 */ 1242 sc_Nil, /* 82 */ 1243 sc_Nil, /* 83 */ 1244 sc_Nil, /* 84 */ 1245 sc_Nil, /* 85 */ 1246 sc_Nil, /* 86 */ 1247 sc_Nil, /* 87 */ 1248 sc_Nil, /* 88 */ 1249 sc_Nil, /* 89 */ 1250 sc_Nil, /* 90 */ 1251 sc_Nil, /* 91 */ 1252 sc_Nil, /* 92 */ 1253 sc_Nil, /* 93 */ 1254 sc_Nil, /* 94 */ 1255 sc_Nil, /* 95 */ 1256 sc_Nil, /* 96 */ 1257 sc_Nil, /* 97 */ 1258 sc_Nil, /* 98 */ 1259 sc_Nil, /* 99 */ 1260 sc_Text, /* 100: C_BLOCK block start/end */ 1261 sc_Text, /* 101: C_FCN function start/end */ 1262 sc_Info, /* 102: C_EOS end of struct/union/enum */ 1263 sc_Nil, /* 103: C_FILE file start */ 1264 sc_Nil, /* 104: C_LINE line number */ 1265 sc_Nil, /* 105: C_ALIAS combined type info */ 1266 sc_Nil, /* 106: C_HIDDEN ??? */ 1267}; 1268 1269/* Convert COFF storage class to ECOFF symbol type. */ 1270static const st_t map_coff_sym_type[] = { 1271 st_Nil, /* 0: C_NULL */ 1272 st_Local, /* 1: C_AUTO auto var */ 1273 st_Global, /* 2: C_EXT external */ 1274 st_Static, /* 3: C_STAT static */ 1275 st_Local, /* 4: C_REG register */ 1276 st_Global, /* 5: C_EXTDEF ??? */ 1277 st_Label, /* 6: C_LABEL label */ 1278 st_Label, /* 7: C_ULABEL user label */ 1279 st_Member, /* 8: C_MOS member of struct */ 1280 st_Param, /* 9: C_ARG argument */ 1281 st_Block, /* 10: C_STRTAG struct tag */ 1282 st_Member, /* 11: C_MOU member of union */ 1283 st_Block, /* 12: C_UNTAG union tag */ 1284 st_Typedef, /* 13: C_TPDEF typedef */ 1285 st_Static, /* 14: C_USTATIC ??? */ 1286 st_Block, /* 15: C_ENTAG enum tag */ 1287 st_Member, /* 16: C_MOE member of enum */ 1288 st_Param, /* 17: C_REGPARM register parameter */ 1289 st_Member, /* 18; C_FIELD bitfield */ 1290 st_Nil, /* 19 */ 1291 st_Nil, /* 20 */ 1292 st_Nil, /* 21 */ 1293 st_Nil, /* 22 */ 1294 st_Nil, /* 23 */ 1295 st_Nil, /* 24 */ 1296 st_Nil, /* 25 */ 1297 st_Nil, /* 26 */ 1298 st_Nil, /* 27 */ 1299 st_Nil, /* 28 */ 1300 st_Nil, /* 29 */ 1301 st_Nil, /* 30 */ 1302 st_Nil, /* 31 */ 1303 st_Nil, /* 32 */ 1304 st_Nil, /* 33 */ 1305 st_Nil, /* 34 */ 1306 st_Nil, /* 35 */ 1307 st_Nil, /* 36 */ 1308 st_Nil, /* 37 */ 1309 st_Nil, /* 38 */ 1310 st_Nil, /* 39 */ 1311 st_Nil, /* 40 */ 1312 st_Nil, /* 41 */ 1313 st_Nil, /* 42 */ 1314 st_Nil, /* 43 */ 1315 st_Nil, /* 44 */ 1316 st_Nil, /* 45 */ 1317 st_Nil, /* 46 */ 1318 st_Nil, /* 47 */ 1319 st_Nil, /* 48 */ 1320 st_Nil, /* 49 */ 1321 st_Nil, /* 50 */ 1322 st_Nil, /* 51 */ 1323 st_Nil, /* 52 */ 1324 st_Nil, /* 53 */ 1325 st_Nil, /* 54 */ 1326 st_Nil, /* 55 */ 1327 st_Nil, /* 56 */ 1328 st_Nil, /* 57 */ 1329 st_Nil, /* 58 */ 1330 st_Nil, /* 59 */ 1331 st_Nil, /* 60 */ 1332 st_Nil, /* 61 */ 1333 st_Nil, /* 62 */ 1334 st_Nil, /* 63 */ 1335 st_Nil, /* 64 */ 1336 st_Nil, /* 65 */ 1337 st_Nil, /* 66 */ 1338 st_Nil, /* 67 */ 1339 st_Nil, /* 68 */ 1340 st_Nil, /* 69 */ 1341 st_Nil, /* 70 */ 1342 st_Nil, /* 71 */ 1343 st_Nil, /* 72 */ 1344 st_Nil, /* 73 */ 1345 st_Nil, /* 74 */ 1346 st_Nil, /* 75 */ 1347 st_Nil, /* 76 */ 1348 st_Nil, /* 77 */ 1349 st_Nil, /* 78 */ 1350 st_Nil, /* 79 */ 1351 st_Nil, /* 80 */ 1352 st_Nil, /* 81 */ 1353 st_Nil, /* 82 */ 1354 st_Nil, /* 83 */ 1355 st_Nil, /* 84 */ 1356 st_Nil, /* 85 */ 1357 st_Nil, /* 86 */ 1358 st_Nil, /* 87 */ 1359 st_Nil, /* 88 */ 1360 st_Nil, /* 89 */ 1361 st_Nil, /* 90 */ 1362 st_Nil, /* 91 */ 1363 st_Nil, /* 92 */ 1364 st_Nil, /* 93 */ 1365 st_Nil, /* 94 */ 1366 st_Nil, /* 95 */ 1367 st_Nil, /* 96 */ 1368 st_Nil, /* 97 */ 1369 st_Nil, /* 98 */ 1370 st_Nil, /* 99 */ 1371 st_Block, /* 100: C_BLOCK block start/end */ 1372 st_Proc, /* 101: C_FCN function start/end */ 1373 st_End, /* 102: C_EOS end of struct/union/enum */ 1374 st_File, /* 103: C_FILE file start */ 1375 st_Nil, /* 104: C_LINE line number */ 1376 st_Nil, /* 105: C_ALIAS combined type info */ 1377 st_Nil, /* 106: C_HIDDEN ??? */ 1378}; 1379 1380/* Keep track of different sized allocation requests. */ 1381static alloc_info_t alloc_counts[(int) alloc_type_last]; 1382 1383/* Record whether we have seen any debugging information. */ 1384int ecoff_debugging_seen = 0; 1385 1386/* Various statics. */ 1387static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ 1388static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */ 1389static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */ 1390static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */ 1391static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */ 1392#ifdef ECOFF_DEBUG 1393static int debug = 0; /* trace functions */ 1394#endif 1395static int stabs_seen = 0; /* != 0 if stabs have been seen */ 1396 1397static int current_file_idx; 1398static const char *current_stabs_filename; 1399 1400/* Pseudo symbol to use when putting stabs into the symbol table. */ 1401#ifndef STABS_SYMBOL 1402#define STABS_SYMBOL "@stabs" 1403#endif 1404 1405static char stabs_symbol[] = STABS_SYMBOL; 1406 1407/* Prototypes for functions defined in this file. */ 1408 1409static void add_varray_page (varray_t *vp); 1410static symint_t add_string (varray_t *vp, 1411 struct hash_control *hash_tbl, 1412 const char *str, 1413 shash_t **ret_hash); 1414static localsym_t *add_ecoff_symbol (const char *str, st_t type, 1415 sc_t storage, symbolS *sym, 1416 bfd_vma addend, symint_t value, 1417 symint_t indx); 1418static symint_t add_aux_sym_symint (symint_t aux_word); 1419static symint_t add_aux_sym_rndx (int file_index, symint_t sym_index); 1420static symint_t add_aux_sym_tir (type_info_t *t, 1421 hash_state_t state, 1422 thash_t **hash_tbl); 1423static tag_t *get_tag (const char *tag, localsym_t *sym, bt_t basic_type); 1424static void add_unknown_tag (tag_t *ptag); 1425static void add_procedure (char *func); 1426static void add_file (const char *file_name, int indx, int fake); 1427#ifdef ECOFF_DEBUG 1428static char *sc_to_string (sc_t storage_class); 1429static char *st_to_string (st_t symbol_type); 1430#endif 1431static void mark_stabs (int); 1432static char *ecoff_add_bytes (char **buf, char **bufend, 1433 char *bufptr, unsigned long need); 1434static unsigned long ecoff_padding_adjust 1435 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1436 unsigned long offset, char **bufptrptr); 1437static unsigned long ecoff_build_lineno 1438 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1439 unsigned long offset, long *linecntptr); 1440static unsigned long ecoff_build_symbols 1441 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1442 unsigned long offset); 1443static unsigned long ecoff_build_procs 1444 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1445 unsigned long offset); 1446static unsigned long ecoff_build_aux 1447 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1448 unsigned long offset); 1449static unsigned long ecoff_build_strings (char **buf, char **bufend, 1450 unsigned long offset, 1451 varray_t *vp); 1452static unsigned long ecoff_build_ss 1453 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1454 unsigned long offset); 1455static unsigned long ecoff_build_fdr 1456 (const struct ecoff_debug_swap *backend, char **buf, char **bufend, 1457 unsigned long offset); 1458static void ecoff_setup_ext (void); 1459static page_type *allocate_cluster (unsigned long npages); 1460static page_type *allocate_page (void); 1461static scope_t *allocate_scope (void); 1462static void free_scope (scope_t *ptr); 1463static vlinks_t *allocate_vlinks (void); 1464static shash_t *allocate_shash (void); 1465static thash_t *allocate_thash (void); 1466static tag_t *allocate_tag (void); 1467static void free_tag (tag_t *ptr); 1468static forward_t *allocate_forward (void); 1469static thead_t *allocate_thead (void); 1470static void free_thead (thead_t *ptr); 1471static lineno_list_t *allocate_lineno_list (void); 1472 1473/* This function should be called when the assembler starts up. */ 1474 1475void 1476ecoff_read_begin_hook (void) 1477{ 1478 tag_hash = hash_new (); 1479 top_tag_head = allocate_thead (); 1480 top_tag_head->first_tag = (tag_t *) NULL; 1481 top_tag_head->free = (thead_t *) NULL; 1482 top_tag_head->prev = cur_tag_head; 1483 cur_tag_head = top_tag_head; 1484} 1485 1486/* This function should be called when a symbol is created. */ 1487 1488void 1489ecoff_symbol_new_hook (symbolS *symbolP) 1490{ 1491 OBJ_SYMFIELD_TYPE *obj; 1492 1493 /* Make sure that we have a file pointer, but only if we have seen a 1494 file. If we haven't seen a file, then this is a probably special 1495 symbol created by md_begin which may required special handling at 1496 some point. Creating a dummy file with a dummy name is certainly 1497 wrong. */ 1498 if (cur_file_ptr == (efdr_t *) NULL 1499 && seen_at_least_1_file ()) 1500 add_file ((const char *) NULL, 0, 1); 1501 obj = symbol_get_obj (symbolP); 1502 obj->ecoff_file = cur_file_ptr; 1503 obj->ecoff_symbol = NULL; 1504 obj->ecoff_extern_size = 0; 1505} 1506 1507void 1508ecoff_symbol_clone_hook (symbolS *newsymP, symbolS *orgsymP) 1509{ 1510 OBJ_SYMFIELD_TYPE *n, *o; 1511 1512 n = symbol_get_obj (newsymP); 1513 o = symbol_get_obj (orgsymP); 1514 memcpy (n, o, sizeof *n); 1515} 1516 1517/* Add a page to a varray object. */ 1518 1519static void 1520add_varray_page (varray_t *vp /* varray to add page to */) 1521{ 1522 vlinks_t *new_links = allocate_vlinks (); 1523 1524#ifdef MALLOC_CHECK 1525 if (vp->object_size > 1) 1526 new_links->datum = (page_type *) xcalloc (1, vp->object_size); 1527 else 1528#endif 1529 new_links->datum = allocate_page (); 1530 1531 alloc_counts[(int) alloc_type_varray].total_alloc++; 1532 alloc_counts[(int) alloc_type_varray].total_pages++; 1533 1534 new_links->start_index = vp->num_allocated; 1535 vp->objects_last_page = 0; 1536 1537 if (vp->first == (vlinks_t *) NULL) /* first allocation? */ 1538 vp->first = vp->last = new_links; 1539 else 1540 { /* 2nd or greater allocation */ 1541 new_links->prev = vp->last; 1542 vp->last->next = new_links; 1543 vp->last = new_links; 1544 } 1545} 1546 1547/* Add a string (and null pad) to one of the string tables. */ 1548 1549static symint_t 1550add_string (varray_t *vp, /* string obstack */ 1551 struct hash_control *hash_tbl, /* ptr to hash table */ 1552 const char *str, /* string */ 1553 shash_t **ret_hash /* return hash pointer */) 1554{ 1555 unsigned long len = strlen (str); 1556 shash_t *hash_ptr; 1557 1558 if (len >= PAGE_USIZE) 1559 as_fatal (_("string too big (%lu bytes)"), len); 1560 1561 hash_ptr = (shash_t *) hash_find (hash_tbl, str); 1562 if (hash_ptr == (shash_t *) NULL) 1563 { 1564 const char *err; 1565 1566 if (vp->objects_last_page + len >= PAGE_USIZE) 1567 { 1568 vp->num_allocated = 1569 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; 1570 add_varray_page (vp); 1571 } 1572 1573 hash_ptr = allocate_shash (); 1574 hash_ptr->indx = vp->num_allocated; 1575 1576 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; 1577 1578 vp->objects_last_page += len + 1; 1579 vp->num_allocated += len + 1; 1580 1581 strcpy (hash_ptr->string, str); 1582 1583 err = hash_insert (hash_tbl, str, (char *) hash_ptr); 1584 if (err) 1585 as_fatal (_("inserting \"%s\" into string hash table: %s"), 1586 str, err); 1587 } 1588 1589 if (ret_hash != (shash_t **) NULL) 1590 *ret_hash = hash_ptr; 1591 1592 return hash_ptr->indx; 1593} 1594 1595/* Add debugging information for a symbol. */ 1596 1597static localsym_t * 1598add_ecoff_symbol (const char *str, /* symbol name */ 1599 st_t type, /* symbol type */ 1600 sc_t storage, /* storage class */ 1601 symbolS *sym_value, /* associated symbol. */ 1602 bfd_vma addend, /* addend to sym_value. */ 1603 symint_t value, /* value of symbol */ 1604 symint_t indx /* index to local/aux. syms */) 1605{ 1606 localsym_t *psym; 1607 scope_t *pscope; 1608 thead_t *ptag_head; 1609 tag_t *ptag; 1610 tag_t *ptag_next; 1611 varray_t *vp; 1612 int scope_delta = 0; 1613 shash_t *hash_ptr = (shash_t *) NULL; 1614 1615 if (cur_file_ptr == (efdr_t *) NULL) 1616 as_fatal (_("no current file pointer")); 1617 1618 vp = &cur_file_ptr->symbols; 1619 1620 if (vp->objects_last_page == vp->objects_per_page) 1621 add_varray_page (vp); 1622 1623 psym = &vp->last->datum->sym[vp->objects_last_page++]; 1624 1625 if (str == (const char *) NULL && sym_value != (symbolS *) NULL) 1626 psym->name = S_GET_NAME (sym_value); 1627 else 1628 psym->name = str; 1629 psym->as_sym = sym_value; 1630 if (sym_value != (symbolS *) NULL) 1631 symbol_get_obj (sym_value)->ecoff_symbol = psym; 1632 psym->addend = addend; 1633 psym->file_ptr = cur_file_ptr; 1634 psym->proc_ptr = cur_proc_ptr; 1635 psym->begin_ptr = (localsym_t *) NULL; 1636 psym->index_ptr = (aux_t *) NULL; 1637 psym->forward_ref = (forward_t *) NULL; 1638 psym->sym_index = -1; 1639 memset (&psym->ecoff_sym, 0, sizeof (EXTR)); 1640 psym->ecoff_sym.asym.value = value; 1641 psym->ecoff_sym.asym.st = (unsigned) type; 1642 psym->ecoff_sym.asym.sc = (unsigned) storage; 1643 psym->ecoff_sym.asym.index = indx; 1644 1645 /* If there is an associated symbol, we wait until the end of the 1646 assembly before deciding where to put the name (it may be just an 1647 external symbol). Otherwise, this is just a debugging symbol and 1648 the name should go with the current file. */ 1649 if (sym_value == (symbolS *) NULL) 1650 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) 1651 ? 0 1652 : add_string (&cur_file_ptr->strings, 1653 cur_file_ptr->str_hash, 1654 str, 1655 &hash_ptr)); 1656 1657 ++vp->num_allocated; 1658 1659 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) 1660 return psym; 1661 1662 /* Save the symbol within the hash table if this is a static 1663 item, and it has a name. */ 1664 if (hash_ptr != (shash_t *) NULL 1665 && (type == st_Global || type == st_Static || type == st_Label 1666 || type == st_Proc || type == st_StaticProc)) 1667 hash_ptr->sym_ptr = psym; 1668 1669 /* push or pop a scope if appropriate. */ 1670 switch (type) 1671 { 1672 default: 1673 break; 1674 1675 case st_File: /* beginning of file */ 1676 case st_Proc: /* procedure */ 1677 case st_StaticProc: /* static procedure */ 1678 case st_Block: /* begin scope */ 1679 pscope = allocate_scope (); 1680 pscope->prev = cur_file_ptr->cur_scope; 1681 pscope->lsym = psym; 1682 pscope->type = type; 1683 cur_file_ptr->cur_scope = pscope; 1684 1685 if (type != st_File) 1686 scope_delta = 1; 1687 1688 /* For every block type except file, struct, union, or 1689 enumeration blocks, push a level on the tag stack. We omit 1690 file types, so that tags can span file boundaries. */ 1691 if (type != st_File && storage != sc_Info) 1692 { 1693 ptag_head = allocate_thead (); 1694 ptag_head->first_tag = 0; 1695 ptag_head->prev = cur_tag_head; 1696 cur_tag_head = ptag_head; 1697 } 1698 break; 1699 1700 case st_End: 1701 pscope = cur_file_ptr->cur_scope; 1702 if (pscope == (scope_t *) NULL) 1703 as_fatal (_("too many st_End's")); 1704 else 1705 { 1706 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; 1707 1708 psym->begin_ptr = pscope->lsym; 1709 1710 if (begin_type != st_File) 1711 scope_delta = -1; 1712 1713 /* Except for file, structure, union, or enumeration end 1714 blocks remove all tags created within this scope. */ 1715 if (begin_type != st_File && storage != sc_Info) 1716 { 1717 ptag_head = cur_tag_head; 1718 cur_tag_head = ptag_head->prev; 1719 1720 for (ptag = ptag_head->first_tag; 1721 ptag != (tag_t *) NULL; 1722 ptag = ptag_next) 1723 { 1724 if (ptag->forward_ref != (forward_t *) NULL) 1725 add_unknown_tag (ptag); 1726 1727 ptag_next = ptag->same_block; 1728 ptag->hash_ptr->tag_ptr = ptag->same_name; 1729 free_tag (ptag); 1730 } 1731 1732 free_thead (ptag_head); 1733 } 1734 1735 cur_file_ptr->cur_scope = pscope->prev; 1736 1737 /* block begin gets next sym #. This is set when we know 1738 the symbol index value. */ 1739 1740 /* Functions push two or more aux words as follows: 1741 1st word: index+1 of the end symbol (filled in later). 1742 2nd word: type of the function (plus any aux words needed). 1743 Also, tie the external pointer back to the function begin symbol. */ 1744 if (begin_type != st_File && begin_type != st_Block) 1745 { 1746 symint_t ty; 1747 varray_t *svp = &cur_file_ptr->aux_syms; 1748 1749 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); 1750 pscope->lsym->index_ptr = 1751 &svp->last->datum->aux[svp->objects_last_page - 1]; 1752 ty = add_aux_sym_tir (&last_func_type_info, 1753 hash_no, 1754 &cur_file_ptr->thash_head[0]); 1755 (void) ty; 1756/* This seems to be unnecessary. I'm not even sure what it is 1757 * intended to do. It's from mips-tfile. 1758 * if (last_func_sym_value != (symbolS *) NULL) 1759 * { 1760 * last_func_sym_value->ifd = cur_file_ptr->file_index; 1761 * last_func_sym_value->index = ty; 1762 * } 1763 */ 1764 } 1765 1766 free_scope (pscope); 1767 } 1768 } 1769 1770 cur_file_ptr->nested_scopes += scope_delta; 1771 1772#ifdef ECOFF_DEBUG 1773 if (debug && type != st_File 1774 && (debug > 2 || type == st_Block || type == st_End 1775 || type == st_Proc || type == st_StaticProc)) 1776 { 1777 char *sc_str = sc_to_string (storage); 1778 char *st_str = st_to_string (type); 1779 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); 1780 1781 fprintf (stderr, 1782 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", 1783 value, depth, sc_str); 1784 1785 if (str_start && str_end_p1 - str_start > 0) 1786 fprintf (stderr, " st= %-11s name= %.*s\n", 1787 st_str, str_end_p1 - str_start, str_start); 1788 else 1789 { 1790 unsigned long len = strlen (st_str); 1791 fprintf (stderr, " st= %.*s\n", len - 1, st_str); 1792 } 1793 } 1794#endif 1795 1796 return psym; 1797} 1798 1799/* Add an auxiliary symbol (passing a symint). This is actually used 1800 for integral aux types, not just symints. */ 1801 1802static symint_t 1803add_aux_sym_symint (symint_t aux_word /* auxiliary information word */) 1804{ 1805 varray_t *vp; 1806 aux_t *aux_ptr; 1807 1808 if (cur_file_ptr == (efdr_t *) NULL) 1809 as_fatal (_("no current file pointer")); 1810 1811 vp = &cur_file_ptr->aux_syms; 1812 1813 if (vp->objects_last_page == vp->objects_per_page) 1814 add_varray_page (vp); 1815 1816 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1817 aux_ptr->type = aux_isym; 1818 aux_ptr->data.isym = aux_word; 1819 1820 return vp->num_allocated++; 1821} 1822 1823/* Add an auxiliary symbol (passing a file/symbol index combo). */ 1824 1825static symint_t 1826add_aux_sym_rndx (int file_index, symint_t sym_index) 1827{ 1828 varray_t *vp; 1829 aux_t *aux_ptr; 1830 1831 if (cur_file_ptr == (efdr_t *) NULL) 1832 as_fatal (_("no current file pointer")); 1833 1834 vp = &cur_file_ptr->aux_syms; 1835 1836 if (vp->objects_last_page == vp->objects_per_page) 1837 add_varray_page (vp); 1838 1839 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1840 aux_ptr->type = aux_rndx; 1841 aux_ptr->data.rndx.rfd = file_index; 1842 aux_ptr->data.rndx.index = sym_index; 1843 1844 return vp->num_allocated++; 1845} 1846 1847/* Add an auxiliary symbol (passing the basic type and possibly 1848 type qualifiers). */ 1849 1850static symint_t 1851add_aux_sym_tir (type_info_t *t, /* current type information */ 1852 hash_state_t state, /* whether to hash type or not */ 1853 thash_t **hash_tbl /* pointer to hash table to use */) 1854{ 1855 varray_t *vp; 1856 aux_t *aux_ptr; 1857 static AUXU init_aux; 1858 symint_t ret; 1859 int i; 1860 AUXU aux; 1861 1862 if (cur_file_ptr == (efdr_t *) NULL) 1863 as_fatal (_("no current file pointer")); 1864 1865 vp = &cur_file_ptr->aux_syms; 1866 1867 aux = init_aux; 1868 aux.ti.bt = (int) t->basic_type; 1869 aux.ti.continued = 0; 1870 aux.ti.fBitfield = t->bitfield; 1871 1872 aux.ti.tq0 = (int) t->type_qualifiers[0]; 1873 aux.ti.tq1 = (int) t->type_qualifiers[1]; 1874 aux.ti.tq2 = (int) t->type_qualifiers[2]; 1875 aux.ti.tq3 = (int) t->type_qualifiers[3]; 1876 aux.ti.tq4 = (int) t->type_qualifiers[4]; 1877 aux.ti.tq5 = (int) t->type_qualifiers[5]; 1878 1879 /* For anything that adds additional information, we must not hash, 1880 so check here, and reset our state. */ 1881 1882 if (state != hash_no 1883 && (t->type_qualifiers[0] == tq_Array 1884 || t->type_qualifiers[1] == tq_Array 1885 || t->type_qualifiers[2] == tq_Array 1886 || t->type_qualifiers[3] == tq_Array 1887 || t->type_qualifiers[4] == tq_Array 1888 || t->type_qualifiers[5] == tq_Array 1889 || t->basic_type == bt_Struct 1890 || t->basic_type == bt_Union 1891 || t->basic_type == bt_Enum 1892 || t->bitfield 1893 || t->num_dims > 0)) 1894 state = hash_no; 1895 1896 /* See if we can hash this type, and save some space, but some types 1897 can't be hashed (because they contain arrays or continuations), 1898 and others can be put into the hash list, but cannot use existing 1899 types because other aux entries precede this one. */ 1900 1901 if (state != hash_no) 1902 { 1903 thash_t *hash_ptr; 1904 symint_t hi; 1905 1906 hi = aux.isym & ((1 << HASHBITS) - 1); 1907 hi %= THASH_SIZE; 1908 1909 for (hash_ptr = hash_tbl[hi]; 1910 hash_ptr != (thash_t *)0; 1911 hash_ptr = hash_ptr->next) 1912 { 1913 if (aux.isym == hash_ptr->type.isym) 1914 break; 1915 } 1916 1917 if (hash_ptr != (thash_t *) NULL && state == hash_yes) 1918 return hash_ptr->indx; 1919 1920 if (hash_ptr == (thash_t *) NULL) 1921 { 1922 hash_ptr = allocate_thash (); 1923 hash_ptr->next = hash_tbl[hi]; 1924 hash_ptr->type = aux; 1925 hash_ptr->indx = vp->num_allocated; 1926 hash_tbl[hi] = hash_ptr; 1927 } 1928 } 1929 1930 /* Everything is set up, add the aux symbol. */ 1931 if (vp->objects_last_page == vp->objects_per_page) 1932 add_varray_page (vp); 1933 1934 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1935 aux_ptr->type = aux_tir; 1936 aux_ptr->data = aux; 1937 1938 ret = vp->num_allocated++; 1939 1940 /* Add bitfield length if it exists. 1941 1942 NOTE: Mips documentation claims bitfield goes at the end of the 1943 AUX record, but the DECstation compiler emits it here. 1944 (This would only make a difference for enum bitfields.) 1945 1946 Also note: We use the last size given since gcc may emit 2 1947 for an enum bitfield. */ 1948 1949 if (t->bitfield) 1950 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]); 1951 1952 /* Add tag information if needed. Structure, union, and enum 1953 references add 2 aux symbols: a [file index, symbol index] 1954 pointer to the structure type, and the current file index. */ 1955 1956 if (t->basic_type == bt_Struct 1957 || t->basic_type == bt_Union 1958 || t->basic_type == bt_Enum) 1959 { 1960 symint_t file_index = t->tag_ptr->ifd; 1961 localsym_t *sym = t->tag_ptr->sym; 1962 forward_t *forward_ref = allocate_forward (); 1963 1964 if (sym != (localsym_t *) NULL) 1965 { 1966 forward_ref->next = sym->forward_ref; 1967 sym->forward_ref = forward_ref; 1968 } 1969 else 1970 { 1971 forward_ref->next = t->tag_ptr->forward_ref; 1972 t->tag_ptr->forward_ref = forward_ref; 1973 } 1974 1975 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); 1976 forward_ref->index_ptr 1977 = &vp->last->datum->aux[vp->objects_last_page - 1]; 1978 1979 (void) add_aux_sym_symint (file_index); 1980 forward_ref->ifd_ptr 1981 = &vp->last->datum->aux[vp->objects_last_page - 1]; 1982 } 1983 1984 /* Add information about array bounds if they exist. */ 1985 for (i = 0; i < t->num_dims; i++) 1986 { 1987 (void) add_aux_sym_rndx (ST_RFDESCAPE, 1988 cur_file_ptr->int_type); 1989 1990 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ 1991 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ 1992 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ 1993 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ 1994 ? 0 1995 : (t->sizes[i] * 8) / t->dimensions[i]); 1996 }; 1997 1998 /* NOTE: Mips documentation claims that the bitfield width goes here. 1999 But it needs to be emitted earlier. */ 2000 2001 return ret; 2002} 2003 2004/* Add a tag to the tag table (unless it already exists). */ 2005 2006static tag_t * 2007get_tag (const char *tag, /* tag name */ 2008 localsym_t *sym, /* tag start block */ 2009 bt_t basic_type /* bt_Struct, bt_Union, or bt_Enum */) 2010{ 2011 shash_t *hash_ptr; 2012 const char *err; 2013 tag_t *tag_ptr; 2014 2015 if (cur_file_ptr == (efdr_t *) NULL) 2016 as_fatal (_("no current file pointer")); 2017 2018 hash_ptr = (shash_t *) hash_find (tag_hash, tag); 2019 2020 if (hash_ptr != (shash_t *) NULL 2021 && hash_ptr->tag_ptr != (tag_t *) NULL) 2022 { 2023 tag_ptr = hash_ptr->tag_ptr; 2024 if (sym != (localsym_t *) NULL) 2025 { 2026 tag_ptr->basic_type = basic_type; 2027 tag_ptr->ifd = cur_file_ptr->file_index; 2028 tag_ptr->sym = sym; 2029 } 2030 return tag_ptr; 2031 } 2032 2033 if (hash_ptr == (shash_t *) NULL) 2034 { 2035 char *perm; 2036 2037 perm = xstrdup (tag); 2038 hash_ptr = allocate_shash (); 2039 err = hash_insert (tag_hash, perm, (char *) hash_ptr); 2040 if (err) 2041 as_fatal (_("inserting \"%s\" into tag hash table: %s"), 2042 tag, err); 2043 hash_ptr->string = perm; 2044 } 2045 2046 tag_ptr = allocate_tag (); 2047 tag_ptr->forward_ref = (forward_t *) NULL; 2048 tag_ptr->hash_ptr = hash_ptr; 2049 tag_ptr->same_name = hash_ptr->tag_ptr; 2050 tag_ptr->basic_type = basic_type; 2051 tag_ptr->sym = sym; 2052 tag_ptr->ifd = ((sym == (localsym_t *) NULL) 2053 ? (symint_t) -1 2054 : cur_file_ptr->file_index); 2055 tag_ptr->same_block = cur_tag_head->first_tag; 2056 2057 cur_tag_head->first_tag = tag_ptr; 2058 hash_ptr->tag_ptr = tag_ptr; 2059 2060 return tag_ptr; 2061} 2062 2063/* Add an unknown {struct, union, enum} tag. */ 2064 2065static void 2066add_unknown_tag (tag_t *ptag /* pointer to tag information */) 2067{ 2068 shash_t *hash_ptr = ptag->hash_ptr; 2069 char *name = hash_ptr->string; 2070 localsym_t *sym; 2071 forward_t **pf; 2072 2073#ifdef ECOFF_DEBUG 2074 if (debug > 1) 2075 { 2076 char *agg_type = "{unknown aggregate type}"; 2077 switch (ptag->basic_type) 2078 { 2079 case bt_Struct: agg_type = "struct"; break; 2080 case bt_Union: agg_type = "union"; break; 2081 case bt_Enum: agg_type = "enum"; break; 2082 default: break; 2083 } 2084 2085 fprintf (stderr, "unknown %s %.*s found\n", agg_type, 2086 hash_ptr->len, name_start); 2087 } 2088#endif 2089 2090 sym = add_ecoff_symbol (name, 2091 st_Block, 2092 sc_Info, 2093 (symbolS *) NULL, 2094 (bfd_vma) 0, 2095 (symint_t) 0, 2096 (symint_t) 0); 2097 2098 (void) add_ecoff_symbol (name, 2099 st_End, 2100 sc_Info, 2101 (symbolS *) NULL, 2102 (bfd_vma) 0, 2103 (symint_t) 0, 2104 (symint_t) 0); 2105 2106 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) 2107 ; 2108 *pf = ptag->forward_ref; 2109} 2110 2111/* Add a procedure to the current file's list of procedures, and record 2112 this is the current procedure. */ 2113 2114static void 2115add_procedure (char *func /* func name */) 2116{ 2117 varray_t *vp; 2118 proc_t *new_proc_ptr; 2119 symbolS *sym; 2120 2121#ifdef ECOFF_DEBUG 2122 if (debug) 2123 fputc ('\n', stderr); 2124#endif 2125 2126 if (cur_file_ptr == (efdr_t *) NULL) 2127 as_fatal (_("no current file pointer")); 2128 2129 vp = &cur_file_ptr->procs; 2130 2131 if (vp->objects_last_page == vp->objects_per_page) 2132 add_varray_page (vp); 2133 2134 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++]; 2135 2136 if (first_proc_ptr == (proc_t *) NULL) 2137 first_proc_ptr = new_proc_ptr; 2138 2139 vp->num_allocated++; 2140 2141 new_proc_ptr->pdr.isym = -1; 2142 new_proc_ptr->pdr.iline = -1; 2143 new_proc_ptr->pdr.lnLow = -1; 2144 new_proc_ptr->pdr.lnHigh = -1; 2145 2146 /* Set the BSF_FUNCTION flag for the symbol. */ 2147 sym = symbol_find_or_make (func); 2148 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; 2149 2150 /* Push the start of the function. */ 2151 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, 2152 sym, (bfd_vma) 0, (symint_t) 0, 2153 (symint_t) 0); 2154 2155 ++proc_cnt; 2156 2157 /* Fill in the linenos preceding the .ent, if any. */ 2158 if (noproc_lineno != (lineno_list_t *) NULL) 2159 { 2160 lineno_list_t *l; 2161 2162 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) 2163 l->proc = new_proc_ptr; 2164 *last_lineno_ptr = noproc_lineno; 2165 while (*last_lineno_ptr != NULL) 2166 { 2167 last_lineno = *last_lineno_ptr; 2168 last_lineno_ptr = &last_lineno->next; 2169 } 2170 noproc_lineno = (lineno_list_t *) NULL; 2171 } 2172} 2173 2174symbolS * 2175ecoff_get_cur_proc_sym (void) 2176{ 2177 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL); 2178} 2179 2180/* Add a new filename, and set up all of the file relative 2181 virtual arrays (strings, symbols, aux syms, etc.). Record 2182 where the current file structure lives. */ 2183 2184static void 2185add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake) 2186{ 2187 int first_ch; 2188 efdr_t *fil_ptr; 2189 2190#ifdef ECOFF_DEBUG 2191 if (debug) 2192 fprintf (stderr, "\tfile\t%.*s\n", len, file_start); 2193#endif 2194 2195 /* If the file name is NULL, then no .file symbol appeared, and we 2196 want to use the actual file name. */ 2197 if (file_name == (const char *) NULL) 2198 { 2199 if (first_file != (efdr_t *) NULL) 2200 as_fatal (_("fake .file after real one")); 2201 file_name = as_where ((unsigned int *) NULL); 2202 2203 /* Automatically generate ECOFF debugging information, since I 2204 think that's what other ECOFF assemblers do. We don't do 2205 this if we see a .file directive with a string, since that 2206 implies that some sort of debugging information is being 2207 provided. */ 2208 if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED) 2209 debug_type = DEBUG_ECOFF; 2210 } 2211 else if (debug_type == DEBUG_UNSPECIFIED) 2212 debug_type = DEBUG_NONE; 2213 2214#ifndef NO_LISTING 2215 if (listing) 2216 listing_source_file (file_name); 2217#endif 2218 2219 current_stabs_filename = file_name; 2220 2221 /* If we're creating stabs, then we don't actually make a new FDR. 2222 Instead, we just create a stabs symbol. */ 2223 if (stabs_seen) 2224 { 2225 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, 2226 symbol_new ("L0\001", now_seg, 2227 (valueT) frag_now_fix (), 2228 frag_now), 2229 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL)); 2230 return; 2231 } 2232 2233 first_ch = *file_name; 2234 2235 /* FIXME: We can't safely merge files which have line number 2236 information (fMerge will be zero in this case). Otherwise, we 2237 get incorrect line number debugging info. See for instance 2238 ecoff_build_lineno, which will end up setting all file->fdr.* 2239 fields multiple times, resulting in incorrect debug info. In 2240 order to make this work right, all line number and symbol info 2241 for the same source file has to be adjacent in the object file, 2242 so that a single file descriptor can be used to point to them. 2243 This would require maintaining file specific lists of line 2244 numbers and symbols for each file, so that they can be merged 2245 together (or output together) when two .file pseudo-ops are 2246 merged into one file descriptor. */ 2247 2248 /* See if the file has already been created. */ 2249 for (fil_ptr = first_file; 2250 fil_ptr != (efdr_t *) NULL; 2251 fil_ptr = fil_ptr->next_file) 2252 { 2253 if (first_ch == fil_ptr->name[0] 2254 && filename_cmp (file_name, fil_ptr->name) == 0 2255 && fil_ptr->fdr.fMerge) 2256 { 2257 cur_file_ptr = fil_ptr; 2258 if (! fake) 2259 cur_file_ptr->fake = 0; 2260 break; 2261 } 2262 } 2263 2264 /* If this is a new file, create it. */ 2265 if (fil_ptr == (efdr_t *) NULL) 2266 { 2267 if (file_desc.objects_last_page == file_desc.objects_per_page) 2268 add_varray_page (&file_desc); 2269 2270 fil_ptr = cur_file_ptr = 2271 &file_desc.last->datum->file[file_desc.objects_last_page++]; 2272 *fil_ptr = init_file; 2273 2274 fil_ptr->file_index = current_file_idx++; 2275 ++file_desc.num_allocated; 2276 2277 fil_ptr->fake = fake; 2278 2279 /* Allocate the string hash table. */ 2280 fil_ptr->str_hash = hash_new (); 2281 2282 /* Make sure 0 byte in string table is null */ 2283 add_string (&fil_ptr->strings, 2284 fil_ptr->str_hash, 2285 "", 2286 (shash_t **)0); 2287 2288 if (strlen (file_name) > PAGE_USIZE - 2) 2289 as_fatal (_("filename goes over one page boundary")); 2290 2291 /* Push the start of the filename. We assume that the filename 2292 will be stored at string offset 1. */ 2293 (void) add_ecoff_symbol (file_name, st_File, sc_Text, 2294 (symbolS *) NULL, (bfd_vma) 0, 2295 (symint_t) 0, (symint_t) 0); 2296 fil_ptr->fdr.rss = 1; 2297 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; 2298 2299 /* Update the linked list of file descriptors. */ 2300 *last_file_ptr = fil_ptr; 2301 last_file_ptr = &fil_ptr->next_file; 2302 2303 /* Add void & int types to the file (void should be first to catch 2304 errant 0's within the index fields). */ 2305 fil_ptr->void_type = add_aux_sym_tir (&void_type_info, 2306 hash_yes, 2307 &cur_file_ptr->thash_head[0]); 2308 2309 fil_ptr->int_type = add_aux_sym_tir (&int_type_info, 2310 hash_yes, 2311 &cur_file_ptr->thash_head[0]); 2312 } 2313} 2314 2315/* This function is called when the assembler notices a preprocessor 2316 directive switching to a new file. This will not happen in 2317 compiler output, only in hand coded assembler. */ 2318 2319void 2320ecoff_new_file (const char *name, int appfile ATTRIBUTE_UNUSED) 2321{ 2322 if (cur_file_ptr != NULL && filename_cmp (cur_file_ptr->name, name) == 0) 2323 return; 2324 add_file (name, 0, 0); 2325 2326 /* This is a hand coded assembler file, so automatically turn on 2327 debugging information. */ 2328 if (debug_type == DEBUG_UNSPECIFIED) 2329 debug_type = DEBUG_ECOFF; 2330} 2331 2332#ifdef ECOFF_DEBUG 2333 2334/* Convert storage class to string. */ 2335 2336static char * 2337sc_to_string (storage_class) 2338 sc_t storage_class; 2339{ 2340 switch (storage_class) 2341 { 2342 case sc_Nil: return "Nil,"; 2343 case sc_Text: return "Text,"; 2344 case sc_Data: return "Data,"; 2345 case sc_Bss: return "Bss,"; 2346 case sc_Register: return "Register,"; 2347 case sc_Abs: return "Abs,"; 2348 case sc_Undefined: return "Undefined,"; 2349 case sc_CdbLocal: return "CdbLocal,"; 2350 case sc_Bits: return "Bits,"; 2351 case sc_CdbSystem: return "CdbSystem,"; 2352 case sc_RegImage: return "RegImage,"; 2353 case sc_Info: return "Info,"; 2354 case sc_UserStruct: return "UserStruct,"; 2355 case sc_SData: return "SData,"; 2356 case sc_SBss: return "SBss,"; 2357 case sc_RData: return "RData,"; 2358 case sc_Var: return "Var,"; 2359 case sc_Common: return "Common,"; 2360 case sc_SCommon: return "SCommon,"; 2361 case sc_VarRegister: return "VarRegister,"; 2362 case sc_Variant: return "Variant,"; 2363 case sc_SUndefined: return "SUndefined,"; 2364 case sc_Init: return "Init,"; 2365 case sc_Max: return "Max,"; 2366 } 2367 2368 return "???,"; 2369} 2370 2371#endif /* DEBUG */ 2372 2373#ifdef ECOFF_DEBUG 2374 2375/* Convert symbol type to string. */ 2376 2377static char * 2378st_to_string (symbol_type) 2379 st_t symbol_type; 2380{ 2381 switch (symbol_type) 2382 { 2383 case st_Nil: return "Nil,"; 2384 case st_Global: return "Global,"; 2385 case st_Static: return "Static,"; 2386 case st_Param: return "Param,"; 2387 case st_Local: return "Local,"; 2388 case st_Label: return "Label,"; 2389 case st_Proc: return "Proc,"; 2390 case st_Block: return "Block,"; 2391 case st_End: return "End,"; 2392 case st_Member: return "Member,"; 2393 case st_Typedef: return "Typedef,"; 2394 case st_File: return "File,"; 2395 case st_RegReloc: return "RegReloc,"; 2396 case st_Forward: return "Forward,"; 2397 case st_StaticProc: return "StaticProc,"; 2398 case st_Constant: return "Constant,"; 2399 case st_Str: return "String,"; 2400 case st_Number: return "Number,"; 2401 case st_Expr: return "Expr,"; 2402 case st_Type: return "Type,"; 2403 case st_Max: return "Max,"; 2404 } 2405 2406 return "???,"; 2407} 2408 2409#endif /* DEBUG */ 2410 2411/* Parse .begin directives which have a label as the first argument 2412 which gives the location of the start of the block. */ 2413 2414void 2415ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED) 2416{ 2417 char *name; 2418 char name_end; 2419 2420 if (cur_file_ptr == (efdr_t *) NULL) 2421 { 2422 as_warn (_(".begin directive without a preceding .file directive")); 2423 demand_empty_rest_of_line (); 2424 return; 2425 } 2426 2427 if (cur_proc_ptr == (proc_t *) NULL) 2428 { 2429 as_warn (_(".begin directive without a preceding .ent directive")); 2430 demand_empty_rest_of_line (); 2431 return; 2432 } 2433 2434 name_end = get_symbol_name (&name); 2435 2436 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, 2437 symbol_find_or_make (name), 2438 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 2439 2440 (void) restore_line_pointer (name_end); 2441 2442 /* The line number follows, but we don't use it. */ 2443 (void) get_absolute_expression (); 2444 demand_empty_rest_of_line (); 2445} 2446 2447/* Parse .bend directives which have a label as the first argument 2448 which gives the location of the end of the block. */ 2449 2450void 2451ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED) 2452{ 2453 char *name; 2454 char name_end; 2455 symbolS *endsym; 2456 2457 if (cur_file_ptr == (efdr_t *) NULL) 2458 { 2459 as_warn (_(".bend directive without a preceding .file directive")); 2460 demand_empty_rest_of_line (); 2461 return; 2462 } 2463 2464 if (cur_proc_ptr == (proc_t *) NULL) 2465 { 2466 as_warn (_(".bend directive without a preceding .ent directive")); 2467 demand_empty_rest_of_line (); 2468 return; 2469 } 2470 2471 name_end = get_symbol_name (&name); 2472 2473 /* The value is the distance between the .bend directive and the 2474 corresponding symbol. We fill in the offset when we write out 2475 the symbol. */ 2476 endsym = symbol_find (name); 2477 if (endsym == (symbolS *) NULL) 2478 as_warn (_(".bend directive names unknown symbol")); 2479 else 2480 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, 2481 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 2482 2483 restore_line_pointer (name_end); 2484 2485 /* The line number follows, but we don't use it. */ 2486 (void) get_absolute_expression (); 2487 demand_empty_rest_of_line (); 2488} 2489 2490/* COFF debugging information is provided as a series of directives 2491 (.def, .scl, etc.). We build up information as we read the 2492 directives in the following static variables, and file it away when 2493 we reach the .endef directive. */ 2494static char *coff_sym_name; 2495static type_info_t coff_type; 2496static sc_t coff_storage_class; 2497static st_t coff_symbol_typ; 2498static int coff_is_function; 2499static char *coff_tag; 2500static valueT coff_value; 2501static symbolS *coff_sym_value; 2502static bfd_vma coff_sym_addend; 2503static int coff_inside_enumeration; 2504 2505/* Handle a .def directive: start defining a symbol. */ 2506 2507void 2508ecoff_directive_def (int ignore ATTRIBUTE_UNUSED) 2509{ 2510 char *name; 2511 char name_end; 2512 2513 ecoff_debugging_seen = 1; 2514 2515 SKIP_WHITESPACE (); 2516 2517 name_end = get_symbol_name (&name); 2518 2519 if (coff_sym_name != (char *) NULL) 2520 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored")); 2521 else if (*name == '\0') 2522 as_warn (_("empty symbol name in .def; ignored")); 2523 else 2524 { 2525 if (coff_sym_name != (char *) NULL) 2526 free (coff_sym_name); 2527 if (coff_tag != (char *) NULL) 2528 free (coff_tag); 2529 2530 coff_sym_name = xstrdup (name); 2531 coff_type = type_info_init; 2532 coff_storage_class = sc_Nil; 2533 coff_symbol_typ = st_Nil; 2534 coff_is_function = 0; 2535 coff_tag = (char *) NULL; 2536 coff_value = 0; 2537 coff_sym_value = (symbolS *) NULL; 2538 coff_sym_addend = 0; 2539 } 2540 2541 restore_line_pointer (name_end); 2542 2543 demand_empty_rest_of_line (); 2544} 2545 2546/* Handle a .dim directive, used to give dimensions for an array. The 2547 arguments are comma separated numbers. mips-tfile assumes that 2548 there will not be more than 6 dimensions, and gdb won't read any 2549 more than that anyhow, so I will also make that assumption. */ 2550 2551void 2552ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED) 2553{ 2554 int dimens[N_TQ]; 2555 int i; 2556 2557 if (coff_sym_name == (char *) NULL) 2558 { 2559 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored")); 2560 demand_empty_rest_of_line (); 2561 return; 2562 } 2563 2564 for (i = 0; i < N_TQ; i++) 2565 { 2566 SKIP_WHITESPACE (); 2567 dimens[i] = get_absolute_expression (); 2568 if (*input_line_pointer == ',') 2569 ++input_line_pointer; 2570 else 2571 { 2572 if (*input_line_pointer != '\n' 2573 && *input_line_pointer != ';') 2574 as_warn (_("badly formed .dim directive")); 2575 break; 2576 } 2577 } 2578 2579 if (i == N_TQ) 2580 --i; 2581 2582 /* The dimensions are stored away in reverse order. */ 2583 for (; i >= 0; i--) 2584 { 2585 if (coff_type.num_dims >= N_TQ) 2586 { 2587 as_warn (_("too many .dim entries")); 2588 break; 2589 } 2590 coff_type.dimensions[coff_type.num_dims] = dimens[i]; 2591 ++coff_type.num_dims; 2592 } 2593 2594 demand_empty_rest_of_line (); 2595} 2596 2597/* Handle a .scl directive, which sets the COFF storage class of the 2598 symbol. */ 2599 2600void 2601ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED) 2602{ 2603 long val; 2604 2605 if (coff_sym_name == (char *) NULL) 2606 { 2607 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored")); 2608 demand_empty_rest_of_line (); 2609 return; 2610 } 2611 2612 val = get_absolute_expression (); 2613 2614 coff_symbol_typ = map_coff_sym_type[val]; 2615 coff_storage_class = map_coff_storage[val]; 2616 2617 demand_empty_rest_of_line (); 2618} 2619 2620/* Handle a .size directive. For some reason mips-tfile.c thinks that 2621 .size can have multiple arguments. We humor it, although gcc will 2622 never generate more than one argument. */ 2623 2624void 2625ecoff_directive_size (int ignore ATTRIBUTE_UNUSED) 2626{ 2627 int sizes[N_TQ]; 2628 int i; 2629 2630 if (coff_sym_name == (char *) NULL) 2631 { 2632 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored")); 2633 demand_empty_rest_of_line (); 2634 return; 2635 } 2636 2637 for (i = 0; i < N_TQ; i++) 2638 { 2639 SKIP_WHITESPACE (); 2640 sizes[i] = get_absolute_expression (); 2641 if (*input_line_pointer == ',') 2642 ++input_line_pointer; 2643 else 2644 { 2645 if (*input_line_pointer != '\n' 2646 && *input_line_pointer != ';') 2647 as_warn (_("badly formed .size directive")); 2648 break; 2649 } 2650 } 2651 2652 if (i == N_TQ) 2653 --i; 2654 2655 /* The sizes are stored away in reverse order. */ 2656 for (; i >= 0; i--) 2657 { 2658 if (coff_type.num_sizes >= N_TQ) 2659 { 2660 as_warn (_("too many .size entries")); 2661 break; 2662 } 2663 coff_type.sizes[coff_type.num_sizes] = sizes[i]; 2664 ++coff_type.num_sizes; 2665 } 2666 2667 demand_empty_rest_of_line (); 2668} 2669 2670/* Handle the .type directive, which gives the COFF type of the 2671 symbol. */ 2672 2673void 2674ecoff_directive_type (int ignore ATTRIBUTE_UNUSED) 2675{ 2676 long val; 2677 tq_t *tq_ptr; 2678 tq_t *tq_shft; 2679 2680 if (coff_sym_name == (char *) NULL) 2681 { 2682 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored")); 2683 demand_empty_rest_of_line (); 2684 return; 2685 } 2686 2687 val = get_absolute_expression (); 2688 2689 coff_type.orig_type = BTYPE (val); 2690 coff_type.basic_type = map_coff_types[coff_type.orig_type]; 2691 2692 tq_ptr = &coff_type.type_qualifiers[N_TQ]; 2693 while (val & ~N_BTMASK) 2694 { 2695 if (tq_ptr == &coff_type.type_qualifiers[0]) 2696 { 2697 /* FIXME: We could handle this by setting the continued bit. 2698 There would still be a limit: the .type argument can not 2699 be infinite. */ 2700 as_warn (_("the type of %s is too complex; it will be simplified"), 2701 coff_sym_name); 2702 break; 2703 } 2704 if (ISPTR (val)) 2705 *--tq_ptr = tq_Ptr; 2706 else if (ISFCN (val)) 2707 *--tq_ptr = tq_Proc; 2708 else if (ISARY (val)) 2709 *--tq_ptr = tq_Array; 2710 else 2711 as_fatal (_("Unrecognized .type argument")); 2712 2713 val = DECREF (val); 2714 } 2715 2716 tq_shft = &coff_type.type_qualifiers[0]; 2717 while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) 2718 *tq_shft++ = *tq_ptr++; 2719 2720 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) 2721 { 2722 /* If this is a function, ignore it, so that we don't get two 2723 entries (one from the .ent, and one for the .def that 2724 precedes it). Save the type information so that the end 2725 block can properly add it after the begin block index. For 2726 MIPS knows what reason, we must strip off the function type 2727 at this point. */ 2728 coff_is_function = 1; 2729 tq_shft[-1] = tq_Nil; 2730 } 2731 2732 while (tq_shft != &coff_type.type_qualifiers[N_TQ]) 2733 *tq_shft++ = tq_Nil; 2734 2735 demand_empty_rest_of_line (); 2736} 2737 2738/* Handle the .tag directive, which gives the name of a structure, 2739 union or enum. */ 2740 2741void 2742ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED) 2743{ 2744 char *name; 2745 char name_end; 2746 2747 if (coff_sym_name == (char *) NULL) 2748 { 2749 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored")); 2750 demand_empty_rest_of_line (); 2751 return; 2752 } 2753 2754 name_end = get_symbol_name (&name); 2755 2756 coff_tag = xstrdup (name); 2757 2758 (void) restore_line_pointer (name_end); 2759 2760 demand_empty_rest_of_line (); 2761} 2762 2763/* Handle the .val directive, which gives the value of the symbol. It 2764 may be the name of a static or global symbol. */ 2765 2766void 2767ecoff_directive_val (int ignore ATTRIBUTE_UNUSED) 2768{ 2769 expressionS exp; 2770 2771 if (coff_sym_name == (char *) NULL) 2772 { 2773 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored")); 2774 demand_empty_rest_of_line (); 2775 return; 2776 } 2777 2778 expression (&exp); 2779 if (exp.X_op != O_constant && exp.X_op != O_symbol) 2780 { 2781 as_bad (_(".val expression is too complex")); 2782 demand_empty_rest_of_line (); 2783 return; 2784 } 2785 2786 if (exp.X_op == O_constant) 2787 coff_value = exp.X_add_number; 2788 else 2789 { 2790 coff_sym_value = exp.X_add_symbol; 2791 coff_sym_addend = exp.X_add_number; 2792 } 2793 2794 demand_empty_rest_of_line (); 2795} 2796 2797/* Handle the .endef directive, which terminates processing of COFF 2798 debugging information for a symbol. */ 2799 2800void 2801ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED) 2802{ 2803 char *name; 2804 symint_t indx; 2805 localsym_t *sym; 2806 2807 demand_empty_rest_of_line (); 2808 2809 if (coff_sym_name == (char *) NULL) 2810 { 2811 as_warn (_(".endef pseudo-op used before .def; ignored")); 2812 return; 2813 } 2814 2815 name = coff_sym_name; 2816 coff_sym_name = (char *) NULL; 2817 2818 /* If the symbol is a static or external, we have already gotten the 2819 appropriate type and class, so make sure we don't override those 2820 values. This is needed because there are some type and classes 2821 that are not in COFF, such as short data, etc. */ 2822 if (coff_sym_value != (symbolS *) NULL) 2823 { 2824 coff_symbol_typ = st_Nil; 2825 coff_storage_class = sc_Nil; 2826 } 2827 2828 coff_type.extra_sizes = coff_tag != (char *) NULL; 2829 if (coff_type.num_dims > 0) 2830 { 2831 int diff = coff_type.num_dims - coff_type.num_sizes; 2832 int i = coff_type.num_dims - 1; 2833 int j; 2834 2835 if (coff_type.num_sizes != 1 || diff < 0) 2836 { 2837 as_warn (_("bad COFF debugging information")); 2838 return; 2839 } 2840 2841 /* If this is an array, make sure the same number of dimensions 2842 and sizes were passed, creating extra sizes for multiply 2843 dimensioned arrays if not passed. */ 2844 coff_type.extra_sizes = 0; 2845 if (diff) 2846 { 2847 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; 2848 while (j >= 0) 2849 { 2850 coff_type.sizes[j] = (((j - diff) >= 0) 2851 ? coff_type.sizes[j - diff] 2852 : 0); 2853 j--; 2854 } 2855 2856 coff_type.num_sizes = i + 1; 2857 for (i--; i >= 0; i--) 2858 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0 2859 ? 0 2860 : (coff_type.sizes[i + 1] 2861 / coff_type.dimensions[i + 1])); 2862 } 2863 } 2864 else if (coff_symbol_typ == st_Member 2865 && coff_type.num_sizes - coff_type.extra_sizes == 1) 2866 { 2867 /* Is this a bitfield? This is indicated by a structure member 2868 having a size field that isn't an array. */ 2869 coff_type.bitfield = 1; 2870 } 2871 2872 /* Except for enumeration members & begin/ending of scopes, put the 2873 type word in the aux. symbol table. */ 2874 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) 2875 indx = 0; 2876 else if (coff_inside_enumeration) 2877 indx = cur_file_ptr->void_type; 2878 else 2879 { 2880 if (coff_type.basic_type == bt_Struct 2881 || coff_type.basic_type == bt_Union 2882 || coff_type.basic_type == bt_Enum) 2883 { 2884 if (coff_tag == (char *) NULL) 2885 { 2886 as_warn (_("no tag specified for %s"), name); 2887 return; 2888 } 2889 2890 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, 2891 coff_type.basic_type); 2892 } 2893 2894 if (coff_is_function) 2895 { 2896 last_func_type_info = coff_type; 2897 last_func_sym_value = coff_sym_value; 2898 return; 2899 } 2900 2901 indx = add_aux_sym_tir (&coff_type, 2902 hash_yes, 2903 &cur_file_ptr->thash_head[0]); 2904 } 2905 2906 /* Do any last minute adjustments that are necessary. */ 2907 switch (coff_symbol_typ) 2908 { 2909 default: 2910 break; 2911 2912 /* For the beginning of structs, unions, and enumerations, the 2913 size info needs to be passed in the value field. */ 2914 case st_Block: 2915 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes 2916 != 1) 2917 { 2918 as_warn (_("bad COFF debugging information")); 2919 return; 2920 } 2921 else 2922 coff_value = coff_type.sizes[0]; 2923 2924 coff_inside_enumeration = (coff_type.orig_type == T_ENUM); 2925 break; 2926 2927 /* For the end of structs, unions, and enumerations, omit the 2928 name which is always ".eos". This needs to be done last, so 2929 that any error reporting above gives the correct name. */ 2930 case st_End: 2931 free (name); 2932 name = (char *) NULL; 2933 coff_value = 0; 2934 coff_inside_enumeration = 0; 2935 break; 2936 2937 /* Members of structures and unions that aren't bitfields, need 2938 to adjust the value from a byte offset to a bit offset. 2939 Members of enumerations do not have the value adjusted, and 2940 can be distinguished by indx == indexNil. For enumerations, 2941 update the maximum enumeration value. */ 2942 case st_Member: 2943 if (! coff_type.bitfield && ! coff_inside_enumeration) 2944 coff_value *= 8; 2945 2946 break; 2947 } 2948 2949 /* Add the symbol. */ 2950 sym = add_ecoff_symbol (name, 2951 coff_symbol_typ, 2952 coff_storage_class, 2953 coff_sym_value, 2954 coff_sym_addend, 2955 (symint_t) coff_value, 2956 indx); 2957 2958 /* deal with struct, union, and enum tags. */ 2959 if (coff_symbol_typ == st_Block) 2960 { 2961 /* Create or update the tag information. */ 2962 tag_t *tag_ptr = get_tag (name, 2963 sym, 2964 coff_type.basic_type); 2965 forward_t **pf; 2966 2967 /* Remember any forward references. */ 2968 for (pf = &sym->forward_ref; 2969 *pf != (forward_t *) NULL; 2970 pf = &(*pf)->next) 2971 ; 2972 *pf = tag_ptr->forward_ref; 2973 tag_ptr->forward_ref = (forward_t *) NULL; 2974 } 2975} 2976 2977/* Parse .end directives. */ 2978 2979void 2980ecoff_directive_end (int ignore ATTRIBUTE_UNUSED) 2981{ 2982 char *name; 2983 char name_end; 2984 symbolS *ent; 2985 2986 if (cur_file_ptr == (efdr_t *) NULL) 2987 { 2988 as_warn (_(".end directive without a preceding .file directive")); 2989 demand_empty_rest_of_line (); 2990 return; 2991 } 2992 2993 if (cur_proc_ptr == (proc_t *) NULL) 2994 { 2995 as_warn (_(".end directive without a preceding .ent directive")); 2996 demand_empty_rest_of_line (); 2997 return; 2998 } 2999 3000 name_end = get_symbol_name (&name); 3001 3002 if (name == input_line_pointer) 3003 { 3004 as_warn (_(".end directive has no name")); 3005 (void) restore_line_pointer (name_end); 3006 demand_empty_rest_of_line (); 3007 return; 3008 } 3009 3010 /* The value is the distance between the .end directive and the 3011 corresponding symbol. We create a fake symbol to hold the 3012 current location, and put in the offset when we write out the 3013 symbol. */ 3014 ent = symbol_find (name); 3015 if (ent == (symbolS *) NULL) 3016 as_warn (_(".end directive names unknown symbol")); 3017 else 3018 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, 3019 symbol_new ("L0\001", now_seg, 3020 (valueT) frag_now_fix (), 3021 frag_now), 3022 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 3023 3024 cur_proc_ptr = (proc_t *) NULL; 3025 3026 (void) restore_line_pointer (name_end); 3027 demand_empty_rest_of_line (); 3028} 3029 3030/* Parse .ent directives. */ 3031 3032void 3033ecoff_directive_ent (int ignore ATTRIBUTE_UNUSED) 3034{ 3035 char *name; 3036 char name_end; 3037 3038 if (cur_file_ptr == (efdr_t *) NULL) 3039 add_file ((const char *) NULL, 0, 1); 3040 3041 if (cur_proc_ptr != (proc_t *) NULL) 3042 { 3043 as_warn (_("second .ent directive found before .end directive")); 3044 demand_empty_rest_of_line (); 3045 return; 3046 } 3047 3048 name_end = get_symbol_name (&name); 3049 3050 if (name == input_line_pointer) 3051 { 3052 as_warn (_(".ent directive has no name")); 3053 (void) restore_line_pointer (name_end); 3054 demand_empty_rest_of_line (); 3055 return; 3056 } 3057 3058 add_procedure (name); 3059 3060 (void) restore_line_pointer (name_end); 3061 3062 /* The .ent directive is sometimes followed by a number. I'm not 3063 really sure what the number means. I don't see any way to store 3064 the information in the PDR. The Irix 4 assembler seems to ignore 3065 the information. */ 3066 SKIP_WHITESPACE (); 3067 if (*input_line_pointer == ',') 3068 { 3069 ++input_line_pointer; 3070 SKIP_WHITESPACE (); 3071 } 3072 if (ISDIGIT (*input_line_pointer) 3073 || *input_line_pointer == '-') 3074 (void) get_absolute_expression (); 3075 3076 demand_empty_rest_of_line (); 3077} 3078 3079/* Parse .extern directives. */ 3080 3081void 3082ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED) 3083{ 3084 char *name; 3085 int c; 3086 symbolS *symbolp; 3087 valueT size; 3088 3089 c = get_symbol_name (&name); 3090 symbolp = symbol_find_or_make (name); 3091 (void) restore_line_pointer (c); 3092 3093 S_SET_EXTERNAL (symbolp); 3094 3095 if (*input_line_pointer == ',') 3096 ++input_line_pointer; 3097 size = get_absolute_expression (); 3098 3099 symbol_get_obj (symbolp)->ecoff_extern_size = size; 3100} 3101 3102/* Parse .file directives. */ 3103 3104void 3105ecoff_directive_file (int ignore ATTRIBUTE_UNUSED) 3106{ 3107 int indx; 3108 char *name; 3109 int len; 3110 3111 if (cur_proc_ptr != (proc_t *) NULL) 3112 { 3113 as_warn (_("no way to handle .file within .ent/.end section")); 3114 demand_empty_rest_of_line (); 3115 return; 3116 } 3117 3118 indx = (int) get_absolute_expression (); 3119 3120 /* FIXME: we don't have to save the name here. */ 3121 name = demand_copy_C_string (&len); 3122 3123 add_file (name, indx - 1, 0); 3124 3125 demand_empty_rest_of_line (); 3126} 3127 3128/* Parse .fmask directives. */ 3129 3130void 3131ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED) 3132{ 3133 long val; 3134 3135 if (cur_proc_ptr == (proc_t *) NULL) 3136 { 3137 as_warn (_(".fmask outside of .ent")); 3138 demand_empty_rest_of_line (); 3139 return; 3140 } 3141 3142 if (get_absolute_expression_and_terminator (&val) != ',') 3143 { 3144 as_warn (_("bad .fmask directive")); 3145 --input_line_pointer; 3146 demand_empty_rest_of_line (); 3147 return; 3148 } 3149 3150 cur_proc_ptr->pdr.fregmask = val; 3151 cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); 3152 3153 demand_empty_rest_of_line (); 3154} 3155 3156/* Parse .frame directives. */ 3157 3158void 3159ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED) 3160{ 3161 long val; 3162 3163 if (cur_proc_ptr == (proc_t *) NULL) 3164 { 3165 as_warn (_(".frame outside of .ent")); 3166 demand_empty_rest_of_line (); 3167 return; 3168 } 3169 3170 cur_proc_ptr->pdr.framereg = tc_get_register (1); 3171 3172 SKIP_WHITESPACE (); 3173 if (*input_line_pointer++ != ',' 3174 || get_absolute_expression_and_terminator (&val) != ',') 3175 { 3176 as_warn (_("bad .frame directive")); 3177 --input_line_pointer; 3178 demand_empty_rest_of_line (); 3179 return; 3180 } 3181 3182 cur_proc_ptr->pdr.frameoffset = val; 3183 3184 cur_proc_ptr->pdr.pcreg = tc_get_register (0); 3185 3186 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to 3187 Sandro. I don't yet know where this value should be stored, if 3188 anywhere. Don't call demand_empty_rest_of_line (). */ 3189 s_ignore (42); 3190} 3191 3192/* Parse .mask directives. */ 3193 3194void 3195ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED) 3196{ 3197 long val; 3198 3199 if (cur_proc_ptr == (proc_t *) NULL) 3200 { 3201 as_warn (_(".mask outside of .ent")); 3202 demand_empty_rest_of_line (); 3203 return; 3204 } 3205 3206 if (get_absolute_expression_and_terminator (&val) != ',') 3207 { 3208 as_warn (_("bad .mask directive")); 3209 --input_line_pointer; 3210 demand_empty_rest_of_line (); 3211 return; 3212 } 3213 3214 cur_proc_ptr->pdr.regmask = val; 3215 cur_proc_ptr->pdr.regoffset = get_absolute_expression (); 3216 3217 demand_empty_rest_of_line (); 3218} 3219 3220/* Parse .loc directives. */ 3221 3222void 3223ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED) 3224{ 3225 lineno_list_t *list; 3226 symint_t lineno; 3227 3228 if (cur_file_ptr == (efdr_t *) NULL) 3229 { 3230 as_warn (_(".loc before .file")); 3231 demand_empty_rest_of_line (); 3232 return; 3233 } 3234 3235 if (now_seg != text_section) 3236 { 3237 as_warn (_(".loc outside of .text")); 3238 demand_empty_rest_of_line (); 3239 return; 3240 } 3241 3242 /* Skip the file number. */ 3243 SKIP_WHITESPACE (); 3244 get_absolute_expression (); 3245 SKIP_WHITESPACE (); 3246 3247 lineno = get_absolute_expression (); 3248 3249#ifndef NO_LISTING 3250 if (listing) 3251 listing_source_line (lineno); 3252#endif 3253 3254 /* If we're building stabs, then output a special label rather than 3255 ECOFF line number info. */ 3256 if (stabs_seen) 3257 { 3258 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, 3259 symbol_new ("L0\001", now_seg, 3260 (valueT) frag_now_fix (), 3261 frag_now), 3262 (bfd_vma) 0, 0, lineno); 3263 return; 3264 } 3265 3266 list = allocate_lineno_list (); 3267 3268 list->next = (lineno_list_t *) NULL; 3269 list->file = cur_file_ptr; 3270 list->proc = cur_proc_ptr; 3271 list->frag = frag_now; 3272 list->paddr = frag_now_fix (); 3273 list->lineno = lineno; 3274 3275 /* We don't want to merge files which have line numbers. */ 3276 cur_file_ptr->fdr.fMerge = 0; 3277 3278 /* A .loc directive will sometimes appear before a .ent directive, 3279 which means that cur_proc_ptr will be NULL here. Arrange to 3280 patch this up. */ 3281 if (cur_proc_ptr == (proc_t *) NULL) 3282 { 3283 lineno_list_t **pl; 3284 3285 pl = &noproc_lineno; 3286 while (*pl != (lineno_list_t *) NULL) 3287 pl = &(*pl)->next; 3288 *pl = list; 3289 } 3290 else 3291 { 3292 last_lineno = list; 3293 *last_lineno_ptr = list; 3294 last_lineno_ptr = &list->next; 3295 } 3296} 3297 3298/* The MIPS assembler sometimes inserts nop instructions in the 3299 instruction stream. When this happens, we must patch up the .loc 3300 information so that it points to the instruction after the nop. */ 3301 3302void 3303ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset) 3304{ 3305 if (last_lineno != NULL 3306 && last_lineno->frag == old_frag 3307 && last_lineno->paddr == old_frag_offset) 3308 { 3309 last_lineno->frag = frag_now; 3310 last_lineno->paddr = frag_now_fix (); 3311 } 3312} 3313 3314/* Make sure the @stabs symbol is emitted. */ 3315 3316static void 3317mark_stabs (int ignore ATTRIBUTE_UNUSED) 3318{ 3319 if (! stabs_seen) 3320 { 3321 /* Add a dummy @stabs dymbol. */ 3322 stabs_seen = 1; 3323 (void) add_ecoff_symbol (stabs_symbol, st_Nil, sc_Info, 3324 (symbolS *) NULL, 3325 (bfd_vma) 0, (symint_t) -1, 3326 ECOFF_MARK_STAB (0)); 3327 } 3328} 3329 3330/* Parse .weakext directives. */ 3331#ifndef TC_MIPS 3332/* For TC_MIPS use the version in tc-mips.c. */ 3333void 3334ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED) 3335{ 3336 char *name; 3337 int c; 3338 symbolS *symbolP; 3339 expressionS exp; 3340 3341 c = get_symbol_name (&name); 3342 symbolP = symbol_find_or_make (name); 3343 (void) restore_line_pointer (c); 3344 3345 SKIP_WHITESPACE (); 3346 3347 if (*input_line_pointer == ',') 3348 { 3349 if (S_IS_DEFINED (symbolP)) 3350 { 3351 as_bad (_("symbol `%s' is already defined"), 3352 S_GET_NAME (symbolP)); 3353 ignore_rest_of_line (); 3354 return; 3355 } 3356 3357 ++input_line_pointer; 3358 SKIP_WHITESPACE (); 3359 if (! is_end_of_line[(unsigned char) *input_line_pointer]) 3360 { 3361 expression (&exp); 3362 if (exp.X_op != O_symbol) 3363 { 3364 as_bad (_("bad .weakext directive")); 3365 ignore_rest_of_line (); 3366 return; 3367 } 3368 symbol_set_value_expression (symbolP, &exp); 3369 } 3370 } 3371 3372 S_SET_WEAK (symbolP); 3373 3374 demand_empty_rest_of_line (); 3375} 3376#endif /* not TC_MIPS */ 3377 3378/* Handle .stabs directives. The actual parsing routine is done by a 3379 generic routine. This routine is called via OBJ_PROCESS_STAB. 3380 When this is called, input_line_pointer will be pointing at the 3381 value field of the stab. 3382 3383 .stabs directives have five fields: 3384 "string" a string, encoding the type information. 3385 code a numeric code, defined in <stab.h> 3386 0 a zero 3387 desc a zero or line number 3388 value a numeric value or an address. 3389 3390 If the value is relocatable, we transform this into: 3391 iss points as an index into string space 3392 value value from lookup of the name 3393 st st from lookup of the name 3394 sc sc from lookup of the name 3395 index code|CODE_MASK 3396 3397 If the value is not relocatable, we transform this into: 3398 iss points as an index into string space 3399 value value 3400 st st_Nil 3401 sc sc_Nil 3402 index code|CODE_MASK 3403 3404 .stabn directives have four fields (string is null): 3405 code a numeric code, defined in <stab.h> 3406 0 a zero 3407 desc a zero or a line number 3408 value a numeric value or an address. */ 3409 3410void 3411ecoff_stab (segT sec ATTRIBUTE_UNUSED, 3412 int what, 3413 const char *string, 3414 int type, 3415 int other, 3416 int desc) 3417{ 3418 efdr_t *save_file_ptr = cur_file_ptr; 3419 symbolS *sym; 3420 symint_t value; 3421 bfd_vma addend; 3422 st_t st; 3423 sc_t sc; 3424 symint_t indx; 3425 localsym_t *hold = NULL; 3426 3427 ecoff_debugging_seen = 1; 3428 3429 /* We don't handle .stabd. */ 3430 if (what != 's' && what != 'n') 3431 { 3432 as_bad (_(".stab%c is not supported"), what); 3433 return; 3434 } 3435 3436 /* A .stabn uses a null name, not an empty string. */ 3437 if (what == 'n') 3438 string = NULL; 3439 3440 /* We ignore the other field. */ 3441 if (other != 0) 3442 as_warn (_(".stab%c: ignoring non-zero other field"), what); 3443 3444 /* Make sure we have a current file. */ 3445 if (cur_file_ptr == (efdr_t *) NULL) 3446 { 3447 add_file ((const char *) NULL, 0, 1); 3448 save_file_ptr = cur_file_ptr; 3449 } 3450 3451 /* For stabs in ECOFF, the first symbol must be @stabs. This is a 3452 signal to gdb. */ 3453 if (stabs_seen == 0) 3454 mark_stabs (0); 3455 3456 /* Line number stabs are handled differently, since they have two 3457 values, the line number and the address of the label. We use the 3458 index field (aka desc) to hold the line number, and the value 3459 field to hold the address. The symbol type is st_Label, which 3460 should be different from the other stabs, so that gdb can 3461 recognize it. */ 3462 if (type == N_SLINE) 3463 { 3464 SYMR dummy_symr; 3465 char *name; 3466 char name_end; 3467 3468#ifndef NO_LISTING 3469 if (listing) 3470 listing_source_line ((unsigned int) desc); 3471#endif 3472 3473 dummy_symr.index = desc; 3474 if (dummy_symr.index != desc) 3475 { 3476 as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"), 3477 desc, what); 3478 return; 3479 } 3480 3481 name_end = get_symbol_name (&name); 3482 sym = symbol_find_or_make (name); 3483 (void) restore_line_pointer (name_end); 3484 3485 value = 0; 3486 addend = 0; 3487 st = st_Label; 3488 sc = sc_Text; 3489 indx = desc; 3490 } 3491 else 3492 { 3493#ifndef NO_LISTING 3494 if (listing && (type == N_SO || type == N_SOL)) 3495 listing_source_file (string); 3496#endif 3497 3498 if (ISDIGIT (*input_line_pointer) 3499 || *input_line_pointer == '-' 3500 || *input_line_pointer == '+') 3501 { 3502 st = st_Nil; 3503 sc = sc_Nil; 3504 sym = (symbolS *) NULL; 3505 value = get_absolute_expression (); 3506 addend = 0; 3507 } 3508 else if (! is_name_beginner ((unsigned char) *input_line_pointer)) 3509 { 3510 as_warn (_("illegal .stab%c directive, bad character"), what); 3511 return; 3512 } 3513 else 3514 { 3515 expressionS exp; 3516 3517 sc = sc_Nil; 3518 st = st_Nil; 3519 3520 expression (&exp); 3521 if (exp.X_op == O_constant) 3522 { 3523 sym = NULL; 3524 value = exp.X_add_number; 3525 addend = 0; 3526 } 3527 else if (exp.X_op == O_symbol) 3528 { 3529 sym = exp.X_add_symbol; 3530 value = 0; 3531 addend = exp.X_add_number; 3532 } 3533 else 3534 { 3535 sym = make_expr_symbol (&exp); 3536 value = 0; 3537 addend = 0; 3538 } 3539 } 3540 3541 indx = ECOFF_MARK_STAB (type); 3542 } 3543 3544 /* Don't store the stabs symbol we are creating as the type of the 3545 ECOFF symbol. We want to compute the type of the ECOFF symbol 3546 independently. */ 3547 if (sym != (symbolS *) NULL) 3548 hold = symbol_get_obj (sym)->ecoff_symbol; 3549 3550 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx); 3551 3552 if (sym != (symbolS *) NULL) 3553 symbol_get_obj (sym)->ecoff_symbol = hold; 3554 3555 /* Restore normal file type. */ 3556 cur_file_ptr = save_file_ptr; 3557} 3558 3559/* Frob an ECOFF symbol. Small common symbols go into a special 3560 .scommon section rather than bfd_com_section. */ 3561 3562void 3563ecoff_frob_symbol (symbolS *sym) 3564{ 3565 if (S_IS_COMMON (sym) 3566 && S_GET_VALUE (sym) > 0 3567 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) 3568 { 3569 static asection scom_section; 3570 static asymbol scom_symbol; 3571 3572 /* We must construct a fake section similar to bfd_com_section 3573 but with the name .scommon. */ 3574 if (scom_section.name == NULL) 3575 { 3576 scom_section = *bfd_com_section_ptr; 3577 scom_section.name = ".scommon"; 3578 scom_section.output_section = &scom_section; 3579 scom_section.symbol = &scom_symbol; 3580 scom_section.symbol_ptr_ptr = &scom_section.symbol; 3581 scom_symbol = *bfd_com_section_ptr->symbol; 3582 scom_symbol.name = ".scommon"; 3583 scom_symbol.section = &scom_section; 3584 } 3585 S_SET_SEGMENT (sym, &scom_section); 3586 } 3587 3588 /* Double check weak symbols. */ 3589 if (S_IS_WEAK (sym)) 3590 { 3591 if (S_IS_COMMON (sym)) 3592 as_bad (_("symbol `%s' can not be both weak and common"), 3593 S_GET_NAME (sym)); 3594 } 3595} 3596 3597/* Add bytes to the symbolic information buffer. */ 3598 3599static char * 3600ecoff_add_bytes (char **buf, 3601 char **bufend, 3602 char *bufptr, 3603 unsigned long need) 3604{ 3605 unsigned long at; 3606 unsigned long want; 3607 3608 at = bufptr - *buf; 3609 need -= *bufend - bufptr; 3610 if (need < PAGE_SIZE) 3611 need = PAGE_SIZE; 3612 want = (*bufend - *buf) + need; 3613 *buf = XRESIZEVEC (char, *buf, want); 3614 *bufend = *buf + want; 3615 return *buf + at; 3616} 3617 3618/* Adjust the symbolic information buffer to the alignment required 3619 for the ECOFF target debugging information. */ 3620 3621static unsigned long 3622ecoff_padding_adjust (const struct ecoff_debug_swap *backend, 3623 char **buf, 3624 char **bufend, 3625 unsigned long offset, 3626 char **bufptrptr) 3627{ 3628 bfd_size_type align; 3629 3630 align = backend->debug_align; 3631 if ((offset & (align - 1)) != 0) 3632 { 3633 unsigned long add; 3634 3635 add = align - (offset & (align - 1)); 3636 if ((unsigned long) (*bufend - (*buf + offset)) < add) 3637 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); 3638 memset (*buf + offset, 0, add); 3639 offset += add; 3640 if (bufptrptr != (char **) NULL) 3641 *bufptrptr = *buf + offset; 3642 } 3643 3644 return offset; 3645} 3646 3647/* Build the line number information. */ 3648 3649static unsigned long 3650ecoff_build_lineno (const struct ecoff_debug_swap *backend, 3651 char **buf, 3652 char **bufend, 3653 unsigned long offset, 3654 long *linecntptr) 3655{ 3656 char *bufptr; 3657 lineno_list_t *l; 3658 lineno_list_t *last; 3659 efdr_t *file; 3660 proc_t *proc; 3661 unsigned long c; 3662 long iline; 3663 long totcount; 3664 lineno_list_t first; 3665 lineno_list_t *local_first_lineno = first_lineno; 3666 3667 if (linecntptr != (long *) NULL) 3668 *linecntptr = 0; 3669 3670 bufptr = *buf + offset; 3671 3672 file = (efdr_t *) NULL; 3673 proc = (proc_t *) NULL; 3674 last = (lineno_list_t *) NULL; 3675 c = offset; 3676 iline = 0; 3677 totcount = 0; 3678 3679 /* FIXME? Now that MIPS embedded-PIC is gone, it may be safe to 3680 remove this code. */ 3681 /* For some reason the address of the first procedure is ignored 3682 when reading line numbers. This doesn't matter if the address of 3683 the first procedure is 0, but when gcc is generating MIPS 3684 embedded PIC code, it will put strings in the .text section 3685 before the first procedure. We cope by inserting a dummy line if 3686 the address of the first procedure is not 0. Hopefully this 3687 won't screw things up too badly. 3688 3689 Don't do this for ECOFF assembly source line numbers. They work 3690 without this extra attention. */ 3691 if (debug_type != DEBUG_ECOFF 3692 && first_proc_ptr != (proc_t *) NULL 3693 && local_first_lineno != (lineno_list_t *) NULL 3694 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym) 3695 + bfd_get_section_vma (stdoutput, 3696 S_GET_SEGMENT (first_proc_ptr->sym->as_sym))) 3697 != 0)) 3698 { 3699 first.file = local_first_lineno->file; 3700 first.proc = local_first_lineno->proc; 3701 first.frag = &zero_address_frag; 3702 first.paddr = 0; 3703 first.lineno = 0; 3704 3705 first.next = local_first_lineno; 3706 local_first_lineno = &first; 3707 } 3708 3709 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next) 3710 { 3711 long count; 3712 long delta; 3713 3714 /* Get the offset to the memory address of the next line number 3715 (in words). Do this first, so that we can skip ahead to the 3716 next useful line number entry. */ 3717 if (l->next == (lineno_list_t *) NULL) 3718 { 3719 /* We want a count of zero, but it will be decremented 3720 before it is used. */ 3721 count = 1; 3722 } 3723 else if (l->next->frag->fr_address + l->next->paddr 3724 > l->frag->fr_address + l->paddr) 3725 { 3726 count = ((l->next->frag->fr_address + l->next->paddr 3727 - (l->frag->fr_address + l->paddr)) 3728 >> 2); 3729 } 3730 else 3731 { 3732 /* Don't change last, so we still get the right delta. */ 3733 continue; 3734 } 3735 3736 if (l->file != file || l->proc != proc) 3737 { 3738 if (l->proc != proc && proc != (proc_t *) NULL) 3739 proc->pdr.lnHigh = last->lineno; 3740 if (l->file != file && file != (efdr_t *) NULL) 3741 { 3742 file->fdr.cbLine = c - file->fdr.cbLineOffset; 3743 file->fdr.cline = totcount + count; 3744 if (linecntptr != (long *) NULL) 3745 *linecntptr += totcount + count; 3746 totcount = 0; 3747 } 3748 3749 if (l->file != file) 3750 { 3751 efdr_t *last_file = file; 3752 3753 file = l->file; 3754 if (last_file != (efdr_t *) NULL) 3755 file->fdr.ilineBase 3756 = last_file->fdr.ilineBase + last_file->fdr.cline; 3757 else 3758 file->fdr.ilineBase = 0; 3759 file->fdr.cbLineOffset = c; 3760 } 3761 if (l->proc != proc) 3762 { 3763 proc = l->proc; 3764 if (proc != (proc_t *) NULL) 3765 { 3766 proc->pdr.lnLow = l->lineno; 3767 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; 3768 proc->pdr.iline = totcount; 3769 } 3770 } 3771 3772 last = (lineno_list_t *) NULL; 3773 } 3774 3775 totcount += count; 3776 3777 /* Get the offset to this line number. */ 3778 if (last == (lineno_list_t *) NULL) 3779 delta = 0; 3780 else 3781 delta = l->lineno - last->lineno; 3782 3783 /* Put in the offset to this line number. */ 3784 while (delta != 0) 3785 { 3786 int setcount; 3787 3788 /* 1 is added to each count read. */ 3789 --count; 3790 /* We can only adjust the word count by up to 15 words at a 3791 time. */ 3792 if (count <= 0x0f) 3793 { 3794 setcount = count; 3795 count = 0; 3796 } 3797 else 3798 { 3799 setcount = 0x0f; 3800 count -= 0x0f; 3801 } 3802 if (delta >= -7 && delta <= 7) 3803 { 3804 if (bufptr >= *bufend) 3805 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); 3806 *bufptr++ = setcount + (delta << 4); 3807 delta = 0; 3808 ++c; 3809 } 3810 else 3811 { 3812 int set; 3813 3814 if (*bufend - bufptr < 3) 3815 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); 3816 *bufptr++ = setcount + (8 << 4); 3817 if (delta < -0x8000) 3818 { 3819 set = -0x8000; 3820 delta += 0x8000; 3821 } 3822 else if (delta > 0x7fff) 3823 { 3824 set = 0x7fff; 3825 delta -= 0x7fff; 3826 } 3827 else 3828 { 3829 set = delta; 3830 delta = 0; 3831 } 3832 *bufptr++ = set >> 8; 3833 *bufptr++ = set & 0xffff; 3834 c += 3; 3835 } 3836 } 3837 3838 /* Finish adjusting the count. */ 3839 while (count > 0) 3840 { 3841 if (bufptr >= *bufend) 3842 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); 3843 /* 1 is added to each count read. */ 3844 --count; 3845 if (count > 0x0f) 3846 { 3847 *bufptr++ = 0x0f; 3848 count -= 0x0f; 3849 } 3850 else 3851 { 3852 *bufptr++ = count; 3853 count = 0; 3854 } 3855 ++c; 3856 } 3857 3858 ++iline; 3859 last = l; 3860 } 3861 3862 if (proc != (proc_t *) NULL) 3863 proc->pdr.lnHigh = last->lineno; 3864 if (file != (efdr_t *) NULL) 3865 { 3866 file->fdr.cbLine = c - file->fdr.cbLineOffset; 3867 file->fdr.cline = totcount; 3868 } 3869 3870 if (linecntptr != (long *) NULL) 3871 *linecntptr += totcount; 3872 3873 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); 3874 3875 return c; 3876} 3877 3878/* Build and swap out the symbols. */ 3879 3880static unsigned long 3881ecoff_build_symbols (const struct ecoff_debug_swap *backend, 3882 char **buf, 3883 char **bufend, 3884 unsigned long offset) 3885{ 3886 const bfd_size_type external_sym_size = backend->external_sym_size; 3887 void (* const swap_sym_out) (bfd *, const SYMR *, void *) 3888 = backend->swap_sym_out; 3889 char *sym_out; 3890 long isym; 3891 vlinks_t *file_link; 3892 3893 sym_out = *buf + offset; 3894 3895 isym = 0; 3896 3897 /* The symbols are stored by file. */ 3898 for (file_link = file_desc.first; 3899 file_link != (vlinks_t *) NULL; 3900 file_link = file_link->next) 3901 { 3902 int ifilesym; 3903 int fil_cnt; 3904 efdr_t *fil_ptr; 3905 efdr_t *fil_end; 3906 3907 if (file_link->next == (vlinks_t *) NULL) 3908 fil_cnt = file_desc.objects_last_page; 3909 else 3910 fil_cnt = file_desc.objects_per_page; 3911 fil_ptr = file_link->datum->file; 3912 fil_end = fil_ptr + fil_cnt; 3913 for (; fil_ptr < fil_end; fil_ptr++) 3914 { 3915 vlinks_t *sym_link; 3916 3917 fil_ptr->fdr.isymBase = isym; 3918 ifilesym = isym; 3919 for (sym_link = fil_ptr->symbols.first; 3920 sym_link != (vlinks_t *) NULL; 3921 sym_link = sym_link->next) 3922 { 3923 int sym_cnt; 3924 localsym_t *sym_ptr; 3925 localsym_t *sym_end; 3926 3927 if (sym_link->next == (vlinks_t *) NULL) 3928 sym_cnt = fil_ptr->symbols.objects_last_page; 3929 else 3930 sym_cnt = fil_ptr->symbols.objects_per_page; 3931 sym_ptr = sym_link->datum->sym; 3932 sym_end = sym_ptr + sym_cnt; 3933 for (; sym_ptr < sym_end; sym_ptr++) 3934 { 3935 int local; 3936 symbolS *as_sym; 3937 forward_t *f; 3938 3939 know (sym_ptr->file_ptr == fil_ptr); 3940 3941 /* If there is no associated gas symbol, then this 3942 is a pure debugging symbol. We have already 3943 added the name (if any) to fil_ptr->strings. 3944 Otherwise we must decide whether this is an 3945 external or a local symbol (actually, it may be 3946 both if the local provides additional debugging 3947 information for the external). */ 3948 local = 1; 3949 as_sym = sym_ptr->as_sym; 3950 if (as_sym != (symbolS *) NULL) 3951 { 3952 symint_t indx; 3953 3954 /* The value of a block start symbol is the 3955 offset from the start of the procedure. For 3956 other symbols we just use the gas value (but 3957 we must offset it by the vma of the section, 3958 just as BFD does, because BFD will not see 3959 this value). */ 3960 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block 3961 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) 3962 { 3963 symbolS *begin_sym; 3964 3965 know (sym_ptr->proc_ptr != (proc_t *) NULL); 3966 begin_sym = sym_ptr->proc_ptr->sym->as_sym; 3967 if (S_GET_SEGMENT (as_sym) 3968 != S_GET_SEGMENT (begin_sym)) 3969 as_warn (_(".begin/.bend in different segments")); 3970 sym_ptr->ecoff_sym.asym.value = 3971 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); 3972 } 3973 else 3974 sym_ptr->ecoff_sym.asym.value = 3975 (S_GET_VALUE (as_sym) 3976 + bfd_get_section_vma (stdoutput, 3977 S_GET_SEGMENT (as_sym)) 3978 + sym_ptr->addend); 3979 3980 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym); 3981 3982 /* Set st_Proc to st_StaticProc for local 3983 functions. */ 3984 if (sym_ptr->ecoff_sym.asym.st == st_Proc 3985 && S_IS_DEFINED (as_sym) 3986 && ! S_IS_EXTERNAL (as_sym) 3987 && ! S_IS_WEAK (as_sym)) 3988 sym_ptr->ecoff_sym.asym.st = st_StaticProc; 3989 3990 /* Get the type and storage class based on where 3991 the symbol actually wound up. Traditionally, 3992 N_LBRAC and N_RBRAC are *not* relocated. */ 3993 indx = sym_ptr->ecoff_sym.asym.index; 3994 if (sym_ptr->ecoff_sym.asym.st == st_Nil 3995 && sym_ptr->ecoff_sym.asym.sc == sc_Nil 3996 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) 3997 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) 3998 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) 3999 { 4000 segT seg; 4001 const char *segname; 4002 st_t st; 4003 sc_t sc; 4004 4005 seg = S_GET_SEGMENT (as_sym); 4006 segname = segment_name (seg); 4007 4008 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) 4009 && (S_IS_EXTERNAL (as_sym) 4010 || S_IS_WEAK (as_sym) 4011 || ! S_IS_DEFINED (as_sym))) 4012 { 4013 if ((symbol_get_bfdsym (as_sym)->flags 4014 & BSF_FUNCTION) != 0) 4015 st = st_Proc; 4016 else 4017 st = st_Global; 4018 } 4019 else if (seg == text_section) 4020 st = st_Label; 4021 else 4022 st = st_Static; 4023 4024 if (! S_IS_DEFINED (as_sym)) 4025 { 4026 valueT s; 4027 4028 s = symbol_get_obj (as_sym)->ecoff_extern_size; 4029 if (s == 0 4030 || s > bfd_get_gp_size (stdoutput)) 4031 sc = sc_Undefined; 4032 else 4033 { 4034 sc = sc_SUndefined; 4035 sym_ptr->ecoff_sym.asym.value = s; 4036 } 4037#ifdef S_SET_SIZE 4038 S_SET_SIZE (as_sym, s); 4039#endif 4040 } 4041 else if (S_IS_COMMON (as_sym)) 4042 { 4043 if (S_GET_VALUE (as_sym) > 0 4044 && (S_GET_VALUE (as_sym) 4045 <= bfd_get_gp_size (stdoutput))) 4046 sc = sc_SCommon; 4047 else 4048 sc = sc_Common; 4049 } 4050 else if (seg == text_section) 4051 sc = sc_Text; 4052 else if (seg == data_section) 4053 sc = sc_Data; 4054 else if (strcmp (segname, ".rdata") == 0 4055 || strcmp (segname, ".rodata") == 0) 4056 sc = sc_RData; 4057 else if (strcmp (segname, ".sdata") == 0) 4058 sc = sc_SData; 4059 else if (seg == bss_section) 4060 sc = sc_Bss; 4061 else if (strcmp (segname, ".sbss") == 0) 4062 sc = sc_SBss; 4063 else if (seg == bfd_abs_section_ptr) 4064 sc = sc_Abs; 4065 else 4066 { 4067 /* This must be a user named section. 4068 This is not possible in ECOFF, but it 4069 is in ELF. */ 4070 sc = sc_Data; 4071 } 4072 4073 sym_ptr->ecoff_sym.asym.st = (int) st; 4074 sym_ptr->ecoff_sym.asym.sc = (int) sc; 4075 } 4076 4077 /* This is just an external symbol if it is 4078 outside a procedure and it has a type. 4079 FIXME: g++ will generate symbols which have 4080 different names in the debugging information 4081 than the actual symbol. Should we handle 4082 them here? */ 4083 if ((S_IS_EXTERNAL (as_sym) 4084 || S_IS_WEAK (as_sym) 4085 || ! S_IS_DEFINED (as_sym)) 4086 && sym_ptr->proc_ptr == (proc_t *) NULL 4087 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil 4088 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) 4089 local = 0; 4090 4091 /* This is just an external symbol if it is a 4092 common symbol. */ 4093 if (S_IS_COMMON (as_sym)) 4094 local = 0; 4095 4096 /* If an st_end symbol has an associated gas 4097 symbol, then it is a local label created for 4098 a .bend or .end directive. Stabs line 4099 numbers will have \001 in the names. */ 4100 if (local 4101 && sym_ptr->ecoff_sym.asym.st != st_End 4102 && strchr (sym_ptr->name, '\001') == 0) 4103 sym_ptr->ecoff_sym.asym.iss = 4104 add_string (&fil_ptr->strings, 4105 fil_ptr->str_hash, 4106 sym_ptr->name, 4107 (shash_t **) NULL); 4108 } 4109 4110 /* We now know the index of this symbol; fill in 4111 locations that have been waiting for that 4112 information. */ 4113 if (sym_ptr->begin_ptr != (localsym_t *) NULL) 4114 { 4115 localsym_t *begin_ptr; 4116 st_t begin_type; 4117 4118 know (local); 4119 begin_ptr = sym_ptr->begin_ptr; 4120 know (begin_ptr->sym_index != -1); 4121 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; 4122 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) 4123 sym_ptr->ecoff_sym.asym.iss = 4124 begin_ptr->ecoff_sym.asym.iss; 4125 4126 begin_type = (st_t) begin_ptr->ecoff_sym.asym.st; 4127 if (begin_type == st_File 4128 || begin_type == st_Block) 4129 { 4130 begin_ptr->ecoff_sym.asym.index = 4131 isym - ifilesym + 1; 4132 (*swap_sym_out) (stdoutput, 4133 &begin_ptr->ecoff_sym.asym, 4134 (*buf 4135 + offset 4136 + (begin_ptr->sym_index 4137 * external_sym_size))); 4138 } 4139 else 4140 { 4141 know (begin_ptr->index_ptr != (aux_t *) NULL); 4142 begin_ptr->index_ptr->data.isym = 4143 isym - ifilesym + 1; 4144 } 4145 4146 /* The value of the symbol marking the end of a 4147 procedure is the size of the procedure. The 4148 value of the symbol marking the end of a 4149 block is the offset from the start of the 4150 procedure to the block. */ 4151 if (begin_type == st_Proc 4152 || begin_type == st_StaticProc) 4153 { 4154 know (as_sym != (symbolS *) NULL); 4155 know (begin_ptr->as_sym != (symbolS *) NULL); 4156 if (S_GET_SEGMENT (as_sym) 4157 != S_GET_SEGMENT (begin_ptr->as_sym)) 4158 as_warn (_(".begin/.bend in different segments")); 4159 sym_ptr->ecoff_sym.asym.value = 4160 (S_GET_VALUE (as_sym) 4161 - S_GET_VALUE (begin_ptr->as_sym)); 4162 4163 /* If the size is odd, this is probably a 4164 mips16 function; force it to be even. */ 4165 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0) 4166 ++sym_ptr->ecoff_sym.asym.value; 4167 4168#ifdef S_SET_SIZE 4169 S_SET_SIZE (begin_ptr->as_sym, 4170 sym_ptr->ecoff_sym.asym.value); 4171#endif 4172 } 4173 else if (begin_type == st_Block 4174 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) 4175 { 4176 symbolS *begin_sym; 4177 4178 know (as_sym != (symbolS *) NULL); 4179 know (sym_ptr->proc_ptr != (proc_t *) NULL); 4180 begin_sym = sym_ptr->proc_ptr->sym->as_sym; 4181 if (S_GET_SEGMENT (as_sym) 4182 != S_GET_SEGMENT (begin_sym)) 4183 as_warn (_(".begin/.bend in different segments")); 4184 sym_ptr->ecoff_sym.asym.value = 4185 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); 4186 } 4187 } 4188 4189 for (f = sym_ptr->forward_ref; 4190 f != (forward_t *) NULL; 4191 f = f->next) 4192 { 4193 know (local); 4194 f->ifd_ptr->data.isym = fil_ptr->file_index; 4195 f->index_ptr->data.rndx.index = isym - ifilesym; 4196 } 4197 4198 if (local) 4199 { 4200 if ((bfd_size_type)(*bufend - sym_out) < external_sym_size) 4201 sym_out = ecoff_add_bytes (buf, bufend, 4202 sym_out, 4203 external_sym_size); 4204 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, 4205 sym_out); 4206 sym_out += external_sym_size; 4207 4208 sym_ptr->sym_index = isym; 4209 4210 if (sym_ptr->proc_ptr != (proc_t *) NULL 4211 && sym_ptr->proc_ptr->sym == sym_ptr) 4212 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; 4213 4214 ++isym; 4215 } 4216 4217 /* Record the local symbol index and file number in 4218 case this is an external symbol. Note that this 4219 destroys the asym.index field. */ 4220 if (as_sym != (symbolS *) NULL 4221 && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr) 4222 { 4223 if ((sym_ptr->ecoff_sym.asym.st == st_Proc 4224 || sym_ptr->ecoff_sym.asym.st == st_StaticProc) 4225 && local) 4226 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; 4227 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; 4228 4229 /* Don't try to merge an FDR which has an 4230 external symbol attached to it. */ 4231 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym)) 4232 fil_ptr->fdr.fMerge = 0; 4233 } 4234 } 4235 } 4236 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; 4237 } 4238 } 4239 4240 return offset + isym * external_sym_size; 4241} 4242 4243/* Swap out the procedure information. */ 4244 4245static unsigned long 4246ecoff_build_procs (const struct ecoff_debug_swap *backend, 4247 char **buf, 4248 char **bufend, 4249 unsigned long offset) 4250{ 4251 const bfd_size_type external_pdr_size = backend->external_pdr_size; 4252 void (* const swap_pdr_out) (bfd *, const PDR *, void *) 4253 = backend->swap_pdr_out; 4254 char *pdr_out; 4255 long iproc; 4256 vlinks_t *file_link; 4257 4258 pdr_out = *buf + offset; 4259 4260 iproc = 0; 4261 4262 /* The procedures are stored by file. */ 4263 for (file_link = file_desc.first; 4264 file_link != (vlinks_t *) NULL; 4265 file_link = file_link->next) 4266 { 4267 int fil_cnt; 4268 efdr_t *fil_ptr; 4269 efdr_t *fil_end; 4270 4271 if (file_link->next == (vlinks_t *) NULL) 4272 fil_cnt = file_desc.objects_last_page; 4273 else 4274 fil_cnt = file_desc.objects_per_page; 4275 fil_ptr = file_link->datum->file; 4276 fil_end = fil_ptr + fil_cnt; 4277 for (; fil_ptr < fil_end; fil_ptr++) 4278 { 4279 vlinks_t *proc_link; 4280 int first; 4281 4282 fil_ptr->fdr.ipdFirst = iproc; 4283 first = 1; 4284 for (proc_link = fil_ptr->procs.first; 4285 proc_link != (vlinks_t *) NULL; 4286 proc_link = proc_link->next) 4287 { 4288 int prc_cnt; 4289 proc_t *proc_ptr; 4290 proc_t *proc_end; 4291 4292 if (proc_link->next == (vlinks_t *) NULL) 4293 prc_cnt = fil_ptr->procs.objects_last_page; 4294 else 4295 prc_cnt = fil_ptr->procs.objects_per_page; 4296 proc_ptr = proc_link->datum->proc; 4297 proc_end = proc_ptr + prc_cnt; 4298 for (; proc_ptr < proc_end; proc_ptr++) 4299 { 4300 symbolS *adr_sym; 4301 unsigned long adr; 4302 4303 adr_sym = proc_ptr->sym->as_sym; 4304 adr = (S_GET_VALUE (adr_sym) 4305 + bfd_get_section_vma (stdoutput, 4306 S_GET_SEGMENT (adr_sym))); 4307 if (first) 4308 { 4309 /* This code used to force the adr of the very 4310 first fdr to be 0. However, the native tools 4311 don't do that, and I can't remember why it 4312 used to work that way, so I took it out. */ 4313 fil_ptr->fdr.adr = adr; 4314 first = 0; 4315 } 4316 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; 4317 if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size) 4318 pdr_out = ecoff_add_bytes (buf, bufend, 4319 pdr_out, 4320 external_pdr_size); 4321 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); 4322 pdr_out += external_pdr_size; 4323 ++iproc; 4324 } 4325 } 4326 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; 4327 } 4328 } 4329 4330 return offset + iproc * external_pdr_size; 4331} 4332 4333/* Swap out the aux information. */ 4334 4335static unsigned long 4336ecoff_build_aux (const struct ecoff_debug_swap *backend, 4337 char **buf, 4338 char **bufend, 4339 unsigned long offset) 4340{ 4341 int bigendian; 4342 union aux_ext *aux_out; 4343 long iaux; 4344 vlinks_t *file_link; 4345 4346 bigendian = bfd_big_endian (stdoutput); 4347 4348 aux_out = (union aux_ext *) (*buf + offset); 4349 4350 iaux = 0; 4351 4352 /* The aux entries are stored by file. */ 4353 for (file_link = file_desc.first; 4354 file_link != (vlinks_t *) NULL; 4355 file_link = file_link->next) 4356 { 4357 int fil_cnt; 4358 efdr_t *fil_ptr; 4359 efdr_t *fil_end; 4360 4361 if (file_link->next == (vlinks_t *) NULL) 4362 fil_cnt = file_desc.objects_last_page; 4363 else 4364 fil_cnt = file_desc.objects_per_page; 4365 fil_ptr = file_link->datum->file; 4366 fil_end = fil_ptr + fil_cnt; 4367 for (; fil_ptr < fil_end; fil_ptr++) 4368 { 4369 vlinks_t *aux_link; 4370 4371 fil_ptr->fdr.fBigendian = bigendian; 4372 fil_ptr->fdr.iauxBase = iaux; 4373 for (aux_link = fil_ptr->aux_syms.first; 4374 aux_link != (vlinks_t *) NULL; 4375 aux_link = aux_link->next) 4376 { 4377 int aux_cnt; 4378 aux_t *aux_ptr; 4379 aux_t *aux_end; 4380 4381 if (aux_link->next == (vlinks_t *) NULL) 4382 aux_cnt = fil_ptr->aux_syms.objects_last_page; 4383 else 4384 aux_cnt = fil_ptr->aux_syms.objects_per_page; 4385 aux_ptr = aux_link->datum->aux; 4386 aux_end = aux_ptr + aux_cnt; 4387 for (; aux_ptr < aux_end; aux_ptr++) 4388 { 4389 if ((unsigned long) (*bufend - (char *) aux_out) 4390 < sizeof (union aux_ext)) 4391 aux_out = ((union aux_ext *) 4392 ecoff_add_bytes (buf, bufend, 4393 (char *) aux_out, 4394 sizeof (union aux_ext))); 4395 switch (aux_ptr->type) 4396 { 4397 case aux_tir: 4398 (*backend->swap_tir_out) (bigendian, 4399 &aux_ptr->data.ti, 4400 &aux_out->a_ti); 4401 break; 4402 case aux_rndx: 4403 (*backend->swap_rndx_out) (bigendian, 4404 &aux_ptr->data.rndx, 4405 &aux_out->a_rndx); 4406 break; 4407 case aux_dnLow: 4408 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, 4409 aux_out); 4410 break; 4411 case aux_dnHigh: 4412 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, 4413 aux_out); 4414 break; 4415 case aux_isym: 4416 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, 4417 aux_out); 4418 break; 4419 case aux_iss: 4420 AUX_PUT_ISS (bigendian, aux_ptr->data.iss, 4421 aux_out); 4422 break; 4423 case aux_width: 4424 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, 4425 aux_out); 4426 break; 4427 case aux_count: 4428 AUX_PUT_COUNT (bigendian, aux_ptr->data.count, 4429 aux_out); 4430 break; 4431 } 4432 4433 ++aux_out; 4434 ++iaux; 4435 } 4436 } 4437 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; 4438 } 4439 } 4440 4441 return ecoff_padding_adjust (backend, buf, bufend, 4442 offset + iaux * sizeof (union aux_ext), 4443 (char **) NULL); 4444} 4445 4446/* Copy out the strings from a varray_t. This returns the number of 4447 bytes copied, rather than the new offset. */ 4448 4449static unsigned long 4450ecoff_build_strings (char **buf, 4451 char **bufend, 4452 unsigned long offset, 4453 varray_t *vp) 4454{ 4455 unsigned long istr; 4456 char *str_out; 4457 vlinks_t *str_link; 4458 4459 str_out = *buf + offset; 4460 4461 istr = 0; 4462 4463 for (str_link = vp->first; 4464 str_link != (vlinks_t *) NULL; 4465 str_link = str_link->next) 4466 { 4467 unsigned long str_cnt; 4468 4469 if (str_link->next == (vlinks_t *) NULL) 4470 str_cnt = vp->objects_last_page; 4471 else 4472 str_cnt = vp->objects_per_page; 4473 4474 if ((unsigned long)(*bufend - str_out) < str_cnt) 4475 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); 4476 4477 memcpy (str_out, str_link->datum->byte, str_cnt); 4478 str_out += str_cnt; 4479 istr += str_cnt; 4480 } 4481 4482 return istr; 4483} 4484 4485/* Dump out the local strings. */ 4486 4487static unsigned long 4488ecoff_build_ss (const struct ecoff_debug_swap *backend, 4489 char **buf, 4490 char **bufend, 4491 unsigned long offset) 4492{ 4493 long iss; 4494 vlinks_t *file_link; 4495 4496 iss = 0; 4497 4498 for (file_link = file_desc.first; 4499 file_link != (vlinks_t *) NULL; 4500 file_link = file_link->next) 4501 { 4502 int fil_cnt; 4503 efdr_t *fil_ptr; 4504 efdr_t *fil_end; 4505 4506 if (file_link->next == (vlinks_t *) NULL) 4507 fil_cnt = file_desc.objects_last_page; 4508 else 4509 fil_cnt = file_desc.objects_per_page; 4510 fil_ptr = file_link->datum->file; 4511 fil_end = fil_ptr + fil_cnt; 4512 for (; fil_ptr < fil_end; fil_ptr++) 4513 { 4514 long ss_cnt; 4515 4516 fil_ptr->fdr.issBase = iss; 4517 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, 4518 &fil_ptr->strings); 4519 fil_ptr->fdr.cbSs = ss_cnt; 4520 iss += ss_cnt; 4521 } 4522 } 4523 4524 return ecoff_padding_adjust (backend, buf, bufend, offset + iss, 4525 (char **) NULL); 4526} 4527 4528/* Swap out the file descriptors. */ 4529 4530static unsigned long 4531ecoff_build_fdr (const struct ecoff_debug_swap *backend, 4532 char **buf, 4533 char **bufend, 4534 unsigned long offset) 4535{ 4536 const bfd_size_type external_fdr_size = backend->external_fdr_size; 4537 void (* const swap_fdr_out) (bfd *, const FDR *, void *) 4538 = backend->swap_fdr_out; 4539 long ifile; 4540 char *fdr_out; 4541 vlinks_t *file_link; 4542 4543 ifile = 0; 4544 4545 fdr_out = *buf + offset; 4546 4547 for (file_link = file_desc.first; 4548 file_link != (vlinks_t *) NULL; 4549 file_link = file_link->next) 4550 { 4551 int fil_cnt; 4552 efdr_t *fil_ptr; 4553 efdr_t *fil_end; 4554 4555 if (file_link->next == (vlinks_t *) NULL) 4556 fil_cnt = file_desc.objects_last_page; 4557 else 4558 fil_cnt = file_desc.objects_per_page; 4559 fil_ptr = file_link->datum->file; 4560 fil_end = fil_ptr + fil_cnt; 4561 for (; fil_ptr < fil_end; fil_ptr++) 4562 { 4563 if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size) 4564 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, 4565 external_fdr_size); 4566 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); 4567 fdr_out += external_fdr_size; 4568 ++ifile; 4569 } 4570 } 4571 4572 return offset + ifile * external_fdr_size; 4573} 4574 4575/* Set up the external symbols. These are supposed to be handled by 4576 the backend. This routine just gets the right information and 4577 calls a backend function to deal with it. */ 4578 4579static void 4580ecoff_setup_ext (void) 4581{ 4582 symbolS *sym; 4583 4584 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) 4585 { 4586 if (symbol_get_obj (sym)->ecoff_symbol == NULL) 4587 continue; 4588 4589 /* If this is a local symbol, then force the fields to zero. */ 4590 if (! S_IS_EXTERNAL (sym) 4591 && ! S_IS_WEAK (sym) 4592 && S_IS_DEFINED (sym)) 4593 { 4594 struct localsym *lsym; 4595 4596 lsym = symbol_get_obj (sym)->ecoff_symbol; 4597 lsym->ecoff_sym.asym.value = 0; 4598 lsym->ecoff_sym.asym.st = (int) st_Nil; 4599 lsym->ecoff_sym.asym.sc = (int) sc_Nil; 4600 lsym->ecoff_sym.asym.index = indexNil; 4601 } 4602 4603 obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym); 4604 } 4605} 4606 4607/* Build the ECOFF debugging information. */ 4608 4609unsigned long 4610ecoff_build_debug (HDRR *hdr, 4611 char **bufp, 4612 const struct ecoff_debug_swap *backend) 4613{ 4614 const bfd_size_type external_pdr_size = backend->external_pdr_size; 4615 tag_t *ptag; 4616 tag_t *ptag_next; 4617 efdr_t *fil_ptr; 4618 int end_warning; 4619 efdr_t *hold_file_ptr; 4620 proc_t *hold_proc_ptr; 4621 symbolS *sym; 4622 char *buf; 4623 char *bufend; 4624 unsigned long offset; 4625 4626 /* Make sure we have a file. */ 4627 if (first_file == (efdr_t *) NULL) 4628 add_file ((const char *) NULL, 0, 1); 4629 4630 /* Handle any top level tags. */ 4631 for (ptag = top_tag_head->first_tag; 4632 ptag != (tag_t *) NULL; 4633 ptag = ptag_next) 4634 { 4635 if (ptag->forward_ref != (forward_t *) NULL) 4636 add_unknown_tag (ptag); 4637 4638 ptag_next = ptag->same_block; 4639 ptag->hash_ptr->tag_ptr = ptag->same_name; 4640 free_tag (ptag); 4641 } 4642 4643 free_thead (top_tag_head); 4644 4645 /* Look through the symbols. Add debugging information for each 4646 symbol that has not already received it. */ 4647 hold_file_ptr = cur_file_ptr; 4648 hold_proc_ptr = cur_proc_ptr; 4649 cur_proc_ptr = (proc_t *) NULL; 4650 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) 4651 { 4652 if (symbol_get_obj (sym)->ecoff_symbol != NULL 4653 || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL 4654 || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0) 4655 continue; 4656 4657 cur_file_ptr = symbol_get_obj (sym)->ecoff_file; 4658 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, 4659 (bfd_vma) 0, S_GET_VALUE (sym), indexNil); 4660 } 4661 cur_proc_ptr = hold_proc_ptr; 4662 cur_file_ptr = hold_file_ptr; 4663 4664 /* Output an ending symbol for all the files. We have to do this 4665 here for the last file, so we may as well do it for all of the 4666 files. */ 4667 end_warning = 0; 4668 for (fil_ptr = first_file; 4669 fil_ptr != (efdr_t *) NULL; 4670 fil_ptr = fil_ptr->next_file) 4671 { 4672 cur_file_ptr = fil_ptr; 4673 while (cur_file_ptr->cur_scope != (scope_t *) NULL 4674 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL) 4675 { 4676 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; 4677 if (! end_warning && ! cur_file_ptr->fake) 4678 { 4679 as_warn (_("missing .end or .bend at end of file")); 4680 end_warning = 1; 4681 } 4682 } 4683 if (cur_file_ptr->cur_scope != (scope_t *) NULL) 4684 (void) add_ecoff_symbol ((const char *) NULL, 4685 st_End, sc_Text, 4686 (symbolS *) NULL, 4687 (bfd_vma) 0, 4688 (symint_t) 0, 4689 (symint_t) 0); 4690 } 4691 4692 /* Build the symbolic information. */ 4693 offset = 0; 4694 buf = XNEWVEC (char, PAGE_SIZE); 4695 bufend = buf + PAGE_SIZE; 4696 4697 /* Build the line number information. */ 4698 hdr->cbLineOffset = offset; 4699 offset = ecoff_build_lineno (backend, &buf, &bufend, offset, 4700 &hdr->ilineMax); 4701 hdr->cbLine = offset - hdr->cbLineOffset; 4702 4703 /* We don't use dense numbers at all. */ 4704 hdr->idnMax = 0; 4705 hdr->cbDnOffset = 0; 4706 4707 /* We can't build the PDR table until we have built the symbols, 4708 because a PDR contains a symbol index. However, we set aside 4709 space at this point. */ 4710 hdr->ipdMax = proc_cnt; 4711 hdr->cbPdOffset = offset; 4712 if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size) 4713 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, 4714 proc_cnt * external_pdr_size); 4715 offset += proc_cnt * external_pdr_size; 4716 4717 /* Build the local symbols. */ 4718 hdr->cbSymOffset = offset; 4719 offset = ecoff_build_symbols (backend, &buf, &bufend, offset); 4720 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; 4721 4722 /* Building the symbols initializes the symbol index in the PDR's. 4723 Now we can swap out the PDR's. */ 4724 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); 4725 4726 /* We don't use optimization symbols. */ 4727 hdr->ioptMax = 0; 4728 hdr->cbOptOffset = 0; 4729 4730 /* Swap out the auxiliary type information. */ 4731 hdr->cbAuxOffset = offset; 4732 offset = ecoff_build_aux (backend, &buf, &bufend, offset); 4733 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); 4734 4735 /* Copy out the local strings. */ 4736 hdr->cbSsOffset = offset; 4737 offset = ecoff_build_ss (backend, &buf, &bufend, offset); 4738 hdr->issMax = offset - hdr->cbSsOffset; 4739 4740 /* We don't use relative file descriptors. */ 4741 hdr->crfd = 0; 4742 hdr->cbRfdOffset = 0; 4743 4744 /* Swap out the file descriptors. */ 4745 hdr->cbFdOffset = offset; 4746 offset = ecoff_build_fdr (backend, &buf, &bufend, offset); 4747 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; 4748 4749 /* Set up the external symbols, which are handled by the BFD back 4750 end. */ 4751 hdr->issExtMax = 0; 4752 hdr->cbSsExtOffset = 0; 4753 hdr->iextMax = 0; 4754 hdr->cbExtOffset = 0; 4755 ecoff_setup_ext (); 4756 4757 know ((offset & (backend->debug_align - 1)) == 0); 4758 4759 /* FIXME: This value should be determined from the .verstamp directive, 4760 with reasonable defaults in config files. */ 4761#ifdef TC_ALPHA 4762 hdr->vstamp = 0x030b; 4763#else 4764 hdr->vstamp = 0x020b; 4765#endif 4766 4767 *bufp = buf; 4768 return offset; 4769} 4770 4771/* Allocate a cluster of pages. */ 4772 4773#ifndef MALLOC_CHECK 4774 4775static page_type * 4776allocate_cluster (unsigned long npages) 4777{ 4778 page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE); 4779 4780#ifdef ECOFF_DEBUG 4781 if (debug > 3) 4782 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); 4783#endif 4784 4785 memset (value, 0, npages * PAGE_USIZE); 4786 4787 return value; 4788} 4789 4790static page_type *cluster_ptr = NULL; 4791static unsigned long pages_left = 0; 4792 4793#endif /* MALLOC_CHECK */ 4794 4795/* Allocate one page (which is initialized to 0). */ 4796 4797static page_type * 4798allocate_page (void) 4799{ 4800#ifndef MALLOC_CHECK 4801 4802 if (pages_left == 0) 4803 { 4804 pages_left = MAX_CLUSTER_PAGES; 4805 cluster_ptr = allocate_cluster (pages_left); 4806 } 4807 4808 pages_left--; 4809 return cluster_ptr++; 4810 4811#else /* MALLOC_CHECK */ 4812 4813 page_type *ptr; 4814 4815 ptr = xmalloc (PAGE_USIZE); 4816 memset (ptr, 0, PAGE_USIZE); 4817 return ptr; 4818 4819#endif /* MALLOC_CHECK */ 4820} 4821 4822/* Allocate scoping information. */ 4823 4824static scope_t * 4825allocate_scope (void) 4826{ 4827 scope_t *ptr; 4828 static scope_t initial_scope; 4829 4830#ifndef MALLOC_CHECK 4831 4832 ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope; 4833 if (ptr != (scope_t *) NULL) 4834 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free; 4835 else 4836 { 4837 int unallocated = alloc_counts[(int) alloc_type_scope].unallocated; 4838 page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page; 4839 4840 if (unallocated == 0) 4841 { 4842 unallocated = PAGE_SIZE / sizeof (scope_t); 4843 alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page (); 4844 alloc_counts[(int) alloc_type_scope].total_pages++; 4845 } 4846 4847 ptr = &cur_page->scope[--unallocated]; 4848 alloc_counts[(int) alloc_type_scope].unallocated = unallocated; 4849 } 4850 4851#else 4852 4853 ptr = XNEW (scope_t); 4854 4855#endif 4856 4857 alloc_counts[(int) alloc_type_scope].total_alloc++; 4858 *ptr = initial_scope; 4859 return ptr; 4860} 4861 4862/* Free scoping information. */ 4863 4864static void 4865free_scope (scope_t *ptr) 4866{ 4867 alloc_counts[(int) alloc_type_scope].total_free++; 4868 4869#ifndef MALLOC_CHECK 4870 ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope; 4871 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr; 4872#else 4873 free ((void *) ptr); 4874#endif 4875} 4876 4877/* Allocate links for pages in a virtual array. */ 4878 4879static vlinks_t * 4880allocate_vlinks (void) 4881{ 4882 vlinks_t *ptr; 4883 static vlinks_t initial_vlinks; 4884 4885#ifndef MALLOC_CHECK 4886 4887 int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated; 4888 page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page; 4889 4890 if (unallocated == 0) 4891 { 4892 unallocated = PAGE_SIZE / sizeof (vlinks_t); 4893 alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page (); 4894 alloc_counts[(int) alloc_type_vlinks].total_pages++; 4895 } 4896 4897 ptr = &cur_page->vlinks[--unallocated]; 4898 alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated; 4899 4900#else 4901 4902 ptr = XNEW (vlinks_t); 4903 4904#endif 4905 4906 alloc_counts[(int) alloc_type_vlinks].total_alloc++; 4907 *ptr = initial_vlinks; 4908 return ptr; 4909} 4910 4911/* Allocate string hash buckets. */ 4912 4913static shash_t * 4914allocate_shash (void) 4915{ 4916 shash_t *ptr; 4917 static shash_t initial_shash; 4918 4919#ifndef MALLOC_CHECK 4920 4921 int unallocated = alloc_counts[(int) alloc_type_shash].unallocated; 4922 page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page; 4923 4924 if (unallocated == 0) 4925 { 4926 unallocated = PAGE_SIZE / sizeof (shash_t); 4927 alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page (); 4928 alloc_counts[(int) alloc_type_shash].total_pages++; 4929 } 4930 4931 ptr = &cur_page->shash[--unallocated]; 4932 alloc_counts[(int) alloc_type_shash].unallocated = unallocated; 4933 4934#else 4935 4936 ptr = XNEW (shash_t); 4937 4938#endif 4939 4940 alloc_counts[(int) alloc_type_shash].total_alloc++; 4941 *ptr = initial_shash; 4942 return ptr; 4943} 4944 4945/* Allocate type hash buckets. */ 4946 4947static thash_t * 4948allocate_thash (void) 4949{ 4950 thash_t *ptr; 4951 static thash_t initial_thash; 4952 4953#ifndef MALLOC_CHECK 4954 4955 int unallocated = alloc_counts[(int) alloc_type_thash].unallocated; 4956 page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page; 4957 4958 if (unallocated == 0) 4959 { 4960 unallocated = PAGE_SIZE / sizeof (thash_t); 4961 alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page (); 4962 alloc_counts[(int) alloc_type_thash].total_pages++; 4963 } 4964 4965 ptr = &cur_page->thash[--unallocated]; 4966 alloc_counts[(int) alloc_type_thash].unallocated = unallocated; 4967 4968#else 4969 4970 ptr = XNEW (thash_t); 4971 4972#endif 4973 4974 alloc_counts[(int) alloc_type_thash].total_alloc++; 4975 *ptr = initial_thash; 4976 return ptr; 4977} 4978 4979/* Allocate structure, union, or enum tag information. */ 4980 4981static tag_t * 4982allocate_tag (void) 4983{ 4984 tag_t *ptr; 4985 static tag_t initial_tag; 4986 4987#ifndef MALLOC_CHECK 4988 4989 ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag; 4990 if (ptr != (tag_t *) NULL) 4991 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free; 4992 else 4993 { 4994 int unallocated = alloc_counts[(int) alloc_type_tag].unallocated; 4995 page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page; 4996 4997 if (unallocated == 0) 4998 { 4999 unallocated = PAGE_SIZE / sizeof (tag_t); 5000 alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page (); 5001 alloc_counts[(int) alloc_type_tag].total_pages++; 5002 } 5003 5004 ptr = &cur_page->tag[--unallocated]; 5005 alloc_counts[(int) alloc_type_tag].unallocated = unallocated; 5006 } 5007 5008#else 5009 5010 ptr = XNEW (tag_t); 5011 5012#endif 5013 5014 alloc_counts[(int) alloc_type_tag].total_alloc++; 5015 *ptr = initial_tag; 5016 return ptr; 5017} 5018 5019/* Free scoping information. */ 5020 5021static void 5022free_tag (tag_t *ptr) 5023{ 5024 alloc_counts[(int) alloc_type_tag].total_free++; 5025 5026#ifndef MALLOC_CHECK 5027 ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag; 5028 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr; 5029#else 5030 free ((PTR_T) ptr); 5031#endif 5032} 5033 5034/* Allocate forward reference to a yet unknown tag. */ 5035 5036static forward_t * 5037allocate_forward (void) 5038{ 5039 forward_t *ptr; 5040 static forward_t initial_forward; 5041 5042#ifndef MALLOC_CHECK 5043 5044 int unallocated = alloc_counts[(int) alloc_type_forward].unallocated; 5045 page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page; 5046 5047 if (unallocated == 0) 5048 { 5049 unallocated = PAGE_SIZE / sizeof (forward_t); 5050 alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page (); 5051 alloc_counts[(int) alloc_type_forward].total_pages++; 5052 } 5053 5054 ptr = &cur_page->forward[--unallocated]; 5055 alloc_counts[(int) alloc_type_forward].unallocated = unallocated; 5056 5057#else 5058 5059 ptr = XNEW (forward_t); 5060 5061#endif 5062 5063 alloc_counts[(int) alloc_type_forward].total_alloc++; 5064 *ptr = initial_forward; 5065 return ptr; 5066} 5067 5068/* Allocate head of type hash list. */ 5069 5070static thead_t * 5071allocate_thead (void) 5072{ 5073 thead_t *ptr; 5074 static thead_t initial_thead; 5075 5076#ifndef MALLOC_CHECK 5077 5078 ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead; 5079 if (ptr != (thead_t *) NULL) 5080 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free; 5081 else 5082 { 5083 int unallocated = alloc_counts[(int) alloc_type_thead].unallocated; 5084 page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page; 5085 5086 if (unallocated == 0) 5087 { 5088 unallocated = PAGE_SIZE / sizeof (thead_t); 5089 alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page (); 5090 alloc_counts[(int) alloc_type_thead].total_pages++; 5091 } 5092 5093 ptr = &cur_page->thead[--unallocated]; 5094 alloc_counts[(int) alloc_type_thead].unallocated = unallocated; 5095 } 5096 5097#else 5098 5099 ptr = XNEW (thead_t); 5100 5101#endif 5102 5103 alloc_counts[(int) alloc_type_thead].total_alloc++; 5104 *ptr = initial_thead; 5105 return ptr; 5106} 5107 5108/* Free scoping information. */ 5109 5110static void 5111free_thead (thead_t *ptr) 5112{ 5113 alloc_counts[(int) alloc_type_thead].total_free++; 5114 5115#ifndef MALLOC_CHECK 5116 ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead; 5117 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr; 5118#else 5119 free ((PTR_T) ptr); 5120#endif 5121} 5122 5123static lineno_list_t * 5124allocate_lineno_list (void) 5125{ 5126 lineno_list_t *ptr; 5127 static lineno_list_t initial_lineno_list; 5128 5129#ifndef MALLOC_CHECK 5130 5131 int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated; 5132 page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page; 5133 5134 if (unallocated == 0) 5135 { 5136 unallocated = PAGE_SIZE / sizeof (lineno_list_t); 5137 alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page (); 5138 alloc_counts[(int) alloc_type_lineno].total_pages++; 5139 } 5140 5141 ptr = &cur_page->lineno[--unallocated]; 5142 alloc_counts[(int) alloc_type_lineno].unallocated = unallocated; 5143 5144#else 5145 5146 ptr = XNEW (lineno_list_t); 5147 5148#endif 5149 5150 alloc_counts[(int) alloc_type_lineno].total_alloc++; 5151 *ptr = initial_lineno_list; 5152 return ptr; 5153} 5154 5155void 5156ecoff_set_gp_prolog_size (int sz) 5157{ 5158 if (cur_proc_ptr == 0) 5159 return; 5160 5161 cur_proc_ptr->pdr.gp_prologue = sz; 5162 if (cur_proc_ptr->pdr.gp_prologue != sz) 5163 { 5164 as_warn (_("GP prologue size exceeds field size, using 0 instead")); 5165 cur_proc_ptr->pdr.gp_prologue = 0; 5166 } 5167 5168 cur_proc_ptr->pdr.gp_used = 1; 5169} 5170 5171int 5172ecoff_no_current_file (void) 5173{ 5174 return cur_file_ptr == (efdr_t *) NULL; 5175} 5176 5177void 5178ecoff_generate_asm_lineno (void) 5179{ 5180 unsigned int lineno; 5181 const char *filename; 5182 lineno_list_t *list; 5183 5184 filename = as_where (&lineno); 5185 5186 if (current_stabs_filename == (char *) NULL 5187 || filename_cmp (current_stabs_filename, filename)) 5188 add_file (filename, 0, 1); 5189 5190 list = allocate_lineno_list (); 5191 5192 list->next = (lineno_list_t *) NULL; 5193 list->file = cur_file_ptr; 5194 list->proc = cur_proc_ptr; 5195 list->frag = frag_now; 5196 list->paddr = frag_now_fix (); 5197 list->lineno = lineno; 5198 5199 /* We don't want to merge files which have line numbers. */ 5200 cur_file_ptr->fdr.fMerge = 0; 5201 5202 /* A .loc directive will sometimes appear before a .ent directive, 5203 which means that cur_proc_ptr will be NULL here. Arrange to 5204 patch this up. */ 5205 if (cur_proc_ptr == (proc_t *) NULL) 5206 { 5207 lineno_list_t **pl; 5208 5209 pl = &noproc_lineno; 5210 while (*pl != (lineno_list_t *) NULL) 5211 pl = &(*pl)->next; 5212 *pl = list; 5213 } 5214 else 5215 { 5216 last_lineno = list; 5217 *last_lineno_ptr = list; 5218 last_lineno_ptr = &list->next; 5219 } 5220} 5221 5222#else 5223 5224void 5225ecoff_generate_asm_lineno (void) 5226{ 5227} 5228 5229#endif /* ECOFF_DEBUGGING */ 5230