1/* ECOFF debugging support. 2 Copyright (C) 1993-2020 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 indices 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 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 htab_t 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 (htab_t)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 htab_t 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 htab_t 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, int aent); 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 = str_htab_create (); 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 htab_t 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 *) str_hash_find (hash_tbl, str); 1562 if (hash_ptr == (shash_t *) NULL) 1563 { 1564 if (vp->objects_last_page + len >= PAGE_USIZE) 1565 { 1566 vp->num_allocated = 1567 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; 1568 add_varray_page (vp); 1569 } 1570 1571 hash_ptr = allocate_shash (); 1572 hash_ptr->indx = vp->num_allocated; 1573 1574 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; 1575 1576 vp->objects_last_page += len + 1; 1577 vp->num_allocated += len + 1; 1578 1579 strcpy (hash_ptr->string, str); 1580 1581 if (str_hash_insert (hash_tbl, str, hash_ptr, 0) != NULL) 1582 as_fatal (_("duplicate %s"), str); 1583 } 1584 1585 if (ret_hash != (shash_t **) NULL) 1586 *ret_hash = hash_ptr; 1587 1588 return hash_ptr->indx; 1589} 1590 1591/* Add debugging information for a symbol. */ 1592 1593static localsym_t * 1594add_ecoff_symbol (const char *str, /* symbol name */ 1595 st_t type, /* symbol type */ 1596 sc_t storage, /* storage class */ 1597 symbolS *sym_value, /* associated symbol. */ 1598 bfd_vma addend, /* addend to sym_value. */ 1599 symint_t value, /* value of symbol */ 1600 symint_t indx /* index to local/aux. syms */) 1601{ 1602 localsym_t *psym; 1603 scope_t *pscope; 1604 thead_t *ptag_head; 1605 tag_t *ptag; 1606 tag_t *ptag_next; 1607 varray_t *vp; 1608 int scope_delta = 0; 1609 shash_t *hash_ptr = (shash_t *) NULL; 1610 1611 if (cur_file_ptr == (efdr_t *) NULL) 1612 as_fatal (_("no current file pointer")); 1613 1614 vp = &cur_file_ptr->symbols; 1615 1616 if (vp->objects_last_page == vp->objects_per_page) 1617 add_varray_page (vp); 1618 1619 psym = &vp->last->datum->sym[vp->objects_last_page++]; 1620 1621 if (str == (const char *) NULL && sym_value != (symbolS *) NULL) 1622 psym->name = S_GET_NAME (sym_value); 1623 else 1624 psym->name = str; 1625 psym->as_sym = sym_value; 1626 if (sym_value != (symbolS *) NULL) 1627 symbol_get_obj (sym_value)->ecoff_symbol = psym; 1628 psym->addend = addend; 1629 psym->file_ptr = cur_file_ptr; 1630 psym->proc_ptr = cur_proc_ptr; 1631 psym->begin_ptr = (localsym_t *) NULL; 1632 psym->index_ptr = (aux_t *) NULL; 1633 psym->forward_ref = (forward_t *) NULL; 1634 psym->sym_index = -1; 1635 memset (&psym->ecoff_sym, 0, sizeof (EXTR)); 1636 psym->ecoff_sym.asym.value = value; 1637 psym->ecoff_sym.asym.st = (unsigned) type; 1638 psym->ecoff_sym.asym.sc = (unsigned) storage; 1639 psym->ecoff_sym.asym.index = indx; 1640 1641 /* If there is an associated symbol, we wait until the end of the 1642 assembly before deciding where to put the name (it may be just an 1643 external symbol). Otherwise, this is just a debugging symbol and 1644 the name should go with the current file. */ 1645 if (sym_value == (symbolS *) NULL) 1646 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) 1647 ? 0 1648 : add_string (&cur_file_ptr->strings, 1649 cur_file_ptr->str_hash, 1650 str, 1651 &hash_ptr)); 1652 1653 ++vp->num_allocated; 1654 1655 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) 1656 return psym; 1657 1658 /* Save the symbol within the hash table if this is a static 1659 item, and it has a name. */ 1660 if (hash_ptr != (shash_t *) NULL 1661 && (type == st_Global || type == st_Static || type == st_Label 1662 || type == st_Proc || type == st_StaticProc)) 1663 hash_ptr->sym_ptr = psym; 1664 1665 /* push or pop a scope if appropriate. */ 1666 switch (type) 1667 { 1668 default: 1669 break; 1670 1671 case st_File: /* beginning of file */ 1672 case st_Proc: /* procedure */ 1673 case st_StaticProc: /* static procedure */ 1674 case st_Block: /* begin scope */ 1675 pscope = allocate_scope (); 1676 pscope->prev = cur_file_ptr->cur_scope; 1677 pscope->lsym = psym; 1678 pscope->type = type; 1679 cur_file_ptr->cur_scope = pscope; 1680 1681 if (type != st_File) 1682 scope_delta = 1; 1683 1684 /* For every block type except file, struct, union, or 1685 enumeration blocks, push a level on the tag stack. We omit 1686 file types, so that tags can span file boundaries. */ 1687 if (type != st_File && storage != sc_Info) 1688 { 1689 ptag_head = allocate_thead (); 1690 ptag_head->first_tag = 0; 1691 ptag_head->prev = cur_tag_head; 1692 cur_tag_head = ptag_head; 1693 } 1694 break; 1695 1696 case st_End: 1697 pscope = cur_file_ptr->cur_scope; 1698 if (pscope == (scope_t *) NULL) 1699 as_fatal (_("too many st_End's")); 1700 else 1701 { 1702 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; 1703 1704 psym->begin_ptr = pscope->lsym; 1705 1706 if (begin_type != st_File) 1707 scope_delta = -1; 1708 1709 /* Except for file, structure, union, or enumeration end 1710 blocks remove all tags created within this scope. */ 1711 if (begin_type != st_File && storage != sc_Info) 1712 { 1713 ptag_head = cur_tag_head; 1714 cur_tag_head = ptag_head->prev; 1715 1716 for (ptag = ptag_head->first_tag; 1717 ptag != (tag_t *) NULL; 1718 ptag = ptag_next) 1719 { 1720 if (ptag->forward_ref != (forward_t *) NULL) 1721 add_unknown_tag (ptag); 1722 1723 ptag_next = ptag->same_block; 1724 ptag->hash_ptr->tag_ptr = ptag->same_name; 1725 free_tag (ptag); 1726 } 1727 1728 free_thead (ptag_head); 1729 } 1730 1731 cur_file_ptr->cur_scope = pscope->prev; 1732 1733 /* block begin gets next sym #. This is set when we know 1734 the symbol index value. */ 1735 1736 /* Functions push two or more aux words as follows: 1737 1st word: index+1 of the end symbol (filled in later). 1738 2nd word: type of the function (plus any aux words needed). 1739 Also, tie the external pointer back to the function begin symbol. */ 1740 if (begin_type != st_File && begin_type != st_Block) 1741 { 1742 symint_t ty; 1743 varray_t *svp = &cur_file_ptr->aux_syms; 1744 1745 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); 1746 pscope->lsym->index_ptr = 1747 &svp->last->datum->aux[svp->objects_last_page - 1]; 1748 ty = add_aux_sym_tir (&last_func_type_info, 1749 hash_no, 1750 &cur_file_ptr->thash_head[0]); 1751 (void) ty; 1752/* This seems to be unnecessary. I'm not even sure what it is 1753 * intended to do. It's from mips-tfile. 1754 * if (last_func_sym_value != (symbolS *) NULL) 1755 * { 1756 * last_func_sym_value->ifd = cur_file_ptr->file_index; 1757 * last_func_sym_value->index = ty; 1758 * } 1759 */ 1760 } 1761 1762 free_scope (pscope); 1763 } 1764 } 1765 1766 cur_file_ptr->nested_scopes += scope_delta; 1767 1768#ifdef ECOFF_DEBUG 1769 if (debug && type != st_File 1770 && (debug > 2 || type == st_Block || type == st_End 1771 || type == st_Proc || type == st_StaticProc)) 1772 { 1773 char *sc_str = sc_to_string (storage); 1774 char *st_str = st_to_string (type); 1775 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); 1776 1777 fprintf (stderr, 1778 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", 1779 value, depth, sc_str); 1780 1781 if (str_start && str_end_p1 - str_start > 0) 1782 fprintf (stderr, " st= %-11s name= %.*s\n", 1783 st_str, str_end_p1 - str_start, str_start); 1784 else 1785 { 1786 unsigned long len = strlen (st_str); 1787 fprintf (stderr, " st= %.*s\n", len - 1, st_str); 1788 } 1789 } 1790#endif 1791 1792 return psym; 1793} 1794 1795/* Add an auxiliary symbol (passing a symint). This is actually used 1796 for integral aux types, not just symints. */ 1797 1798static symint_t 1799add_aux_sym_symint (symint_t aux_word /* auxiliary information word */) 1800{ 1801 varray_t *vp; 1802 aux_t *aux_ptr; 1803 1804 if (cur_file_ptr == (efdr_t *) NULL) 1805 as_fatal (_("no current file pointer")); 1806 1807 vp = &cur_file_ptr->aux_syms; 1808 1809 if (vp->objects_last_page == vp->objects_per_page) 1810 add_varray_page (vp); 1811 1812 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1813 aux_ptr->type = aux_isym; 1814 aux_ptr->data.isym = aux_word; 1815 1816 return vp->num_allocated++; 1817} 1818 1819/* Add an auxiliary symbol (passing a file/symbol index combo). */ 1820 1821static symint_t 1822add_aux_sym_rndx (int file_index, symint_t sym_index) 1823{ 1824 varray_t *vp; 1825 aux_t *aux_ptr; 1826 1827 if (cur_file_ptr == (efdr_t *) NULL) 1828 as_fatal (_("no current file pointer")); 1829 1830 vp = &cur_file_ptr->aux_syms; 1831 1832 if (vp->objects_last_page == vp->objects_per_page) 1833 add_varray_page (vp); 1834 1835 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1836 aux_ptr->type = aux_rndx; 1837 aux_ptr->data.rndx.rfd = file_index; 1838 aux_ptr->data.rndx.index = sym_index; 1839 1840 return vp->num_allocated++; 1841} 1842 1843/* Add an auxiliary symbol (passing the basic type and possibly 1844 type qualifiers). */ 1845 1846static symint_t 1847add_aux_sym_tir (type_info_t *t, /* current type information */ 1848 hash_state_t state, /* whether to hash type or not */ 1849 thash_t **hash_tbl /* pointer to hash table to use */) 1850{ 1851 varray_t *vp; 1852 aux_t *aux_ptr; 1853 static AUXU init_aux; 1854 symint_t ret; 1855 int i; 1856 AUXU aux; 1857 1858 if (cur_file_ptr == (efdr_t *) NULL) 1859 as_fatal (_("no current file pointer")); 1860 1861 vp = &cur_file_ptr->aux_syms; 1862 1863 aux = init_aux; 1864 aux.ti.bt = (int) t->basic_type; 1865 aux.ti.continued = 0; 1866 aux.ti.fBitfield = t->bitfield; 1867 1868 aux.ti.tq0 = (int) t->type_qualifiers[0]; 1869 aux.ti.tq1 = (int) t->type_qualifiers[1]; 1870 aux.ti.tq2 = (int) t->type_qualifiers[2]; 1871 aux.ti.tq3 = (int) t->type_qualifiers[3]; 1872 aux.ti.tq4 = (int) t->type_qualifiers[4]; 1873 aux.ti.tq5 = (int) t->type_qualifiers[5]; 1874 1875 /* For anything that adds additional information, we must not hash, 1876 so check here, and reset our state. */ 1877 1878 if (state != hash_no 1879 && (t->type_qualifiers[0] == tq_Array 1880 || t->type_qualifiers[1] == tq_Array 1881 || t->type_qualifiers[2] == tq_Array 1882 || t->type_qualifiers[3] == tq_Array 1883 || t->type_qualifiers[4] == tq_Array 1884 || t->type_qualifiers[5] == tq_Array 1885 || t->basic_type == bt_Struct 1886 || t->basic_type == bt_Union 1887 || t->basic_type == bt_Enum 1888 || t->bitfield 1889 || t->num_dims > 0)) 1890 state = hash_no; 1891 1892 /* See if we can hash this type, and save some space, but some types 1893 can't be hashed (because they contain arrays or continuations), 1894 and others can be put into the hash list, but cannot use existing 1895 types because other aux entries precede this one. */ 1896 1897 if (state != hash_no) 1898 { 1899 thash_t *hash_ptr; 1900 symint_t hi; 1901 1902 hi = aux.isym & ((1 << HASHBITS) - 1); 1903 hi %= THASH_SIZE; 1904 1905 for (hash_ptr = hash_tbl[hi]; 1906 hash_ptr != (thash_t *)0; 1907 hash_ptr = hash_ptr->next) 1908 { 1909 if (aux.isym == hash_ptr->type.isym) 1910 break; 1911 } 1912 1913 if (hash_ptr != (thash_t *) NULL && state == hash_yes) 1914 return hash_ptr->indx; 1915 1916 if (hash_ptr == (thash_t *) NULL) 1917 { 1918 hash_ptr = allocate_thash (); 1919 hash_ptr->next = hash_tbl[hi]; 1920 hash_ptr->type = aux; 1921 hash_ptr->indx = vp->num_allocated; 1922 hash_tbl[hi] = hash_ptr; 1923 } 1924 } 1925 1926 /* Everything is set up, add the aux symbol. */ 1927 if (vp->objects_last_page == vp->objects_per_page) 1928 add_varray_page (vp); 1929 1930 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; 1931 aux_ptr->type = aux_tir; 1932 aux_ptr->data = aux; 1933 1934 ret = vp->num_allocated++; 1935 1936 /* Add bitfield length if it exists. 1937 1938 NOTE: Mips documentation claims bitfield goes at the end of the 1939 AUX record, but the DECstation compiler emits it here. 1940 (This would only make a difference for enum bitfields.) 1941 1942 Also note: We use the last size given since gcc may emit 2 1943 for an enum bitfield. */ 1944 1945 if (t->bitfield) 1946 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]); 1947 1948 /* Add tag information if needed. Structure, union, and enum 1949 references add 2 aux symbols: a [file index, symbol index] 1950 pointer to the structure type, and the current file index. */ 1951 1952 if (t->basic_type == bt_Struct 1953 || t->basic_type == bt_Union 1954 || t->basic_type == bt_Enum) 1955 { 1956 symint_t file_index = t->tag_ptr->ifd; 1957 localsym_t *sym = t->tag_ptr->sym; 1958 forward_t *forward_ref = allocate_forward (); 1959 1960 if (sym != (localsym_t *) NULL) 1961 { 1962 forward_ref->next = sym->forward_ref; 1963 sym->forward_ref = forward_ref; 1964 } 1965 else 1966 { 1967 forward_ref->next = t->tag_ptr->forward_ref; 1968 t->tag_ptr->forward_ref = forward_ref; 1969 } 1970 1971 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); 1972 forward_ref->index_ptr 1973 = &vp->last->datum->aux[vp->objects_last_page - 1]; 1974 1975 (void) add_aux_sym_symint (file_index); 1976 forward_ref->ifd_ptr 1977 = &vp->last->datum->aux[vp->objects_last_page - 1]; 1978 } 1979 1980 /* Add information about array bounds if they exist. */ 1981 for (i = 0; i < t->num_dims; i++) 1982 { 1983 (void) add_aux_sym_rndx (ST_RFDESCAPE, 1984 cur_file_ptr->int_type); 1985 1986 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ 1987 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ 1988 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ 1989 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ 1990 ? 0 1991 : (t->sizes[i] * 8) / t->dimensions[i]); 1992 }; 1993 1994 /* NOTE: Mips documentation claims that the bitfield width goes here. 1995 But it needs to be emitted earlier. */ 1996 1997 return ret; 1998} 1999 2000/* Add a tag to the tag table (unless it already exists). */ 2001 2002static tag_t * 2003get_tag (const char *tag, /* tag name */ 2004 localsym_t *sym, /* tag start block */ 2005 bt_t basic_type /* bt_Struct, bt_Union, or bt_Enum */) 2006{ 2007 shash_t *hash_ptr; 2008 tag_t *tag_ptr; 2009 2010 if (cur_file_ptr == (efdr_t *) NULL) 2011 as_fatal (_("no current file pointer")); 2012 2013 hash_ptr = (shash_t *) str_hash_find (tag_hash, tag); 2014 2015 if (hash_ptr != (shash_t *) NULL 2016 && hash_ptr->tag_ptr != (tag_t *) NULL) 2017 { 2018 tag_ptr = hash_ptr->tag_ptr; 2019 if (sym != (localsym_t *) NULL) 2020 { 2021 tag_ptr->basic_type = basic_type; 2022 tag_ptr->ifd = cur_file_ptr->file_index; 2023 tag_ptr->sym = sym; 2024 } 2025 return tag_ptr; 2026 } 2027 2028 if (hash_ptr == (shash_t *) NULL) 2029 { 2030 char *perm; 2031 2032 perm = xstrdup (tag); 2033 hash_ptr = allocate_shash (); 2034 str_hash_insert (tag_hash, perm, hash_ptr, 0); 2035 hash_ptr->string = perm; 2036 } 2037 2038 tag_ptr = allocate_tag (); 2039 tag_ptr->forward_ref = (forward_t *) NULL; 2040 tag_ptr->hash_ptr = hash_ptr; 2041 tag_ptr->same_name = hash_ptr->tag_ptr; 2042 tag_ptr->basic_type = basic_type; 2043 tag_ptr->sym = sym; 2044 tag_ptr->ifd = ((sym == (localsym_t *) NULL) 2045 ? (symint_t) -1 2046 : cur_file_ptr->file_index); 2047 tag_ptr->same_block = cur_tag_head->first_tag; 2048 2049 cur_tag_head->first_tag = tag_ptr; 2050 hash_ptr->tag_ptr = tag_ptr; 2051 2052 return tag_ptr; 2053} 2054 2055/* Add an unknown {struct, union, enum} tag. */ 2056 2057static void 2058add_unknown_tag (tag_t *ptag /* pointer to tag information */) 2059{ 2060 shash_t *hash_ptr = ptag->hash_ptr; 2061 char *name = hash_ptr->string; 2062 localsym_t *sym; 2063 forward_t **pf; 2064 2065#ifdef ECOFF_DEBUG 2066 if (debug > 1) 2067 { 2068 char *agg_type = "{unknown aggregate type}"; 2069 switch (ptag->basic_type) 2070 { 2071 case bt_Struct: agg_type = "struct"; break; 2072 case bt_Union: agg_type = "union"; break; 2073 case bt_Enum: agg_type = "enum"; break; 2074 default: break; 2075 } 2076 2077 fprintf (stderr, "unknown %s %.*s found\n", agg_type, 2078 hash_ptr->len, name_start); 2079 } 2080#endif 2081 2082 sym = add_ecoff_symbol (name, 2083 st_Block, 2084 sc_Info, 2085 (symbolS *) NULL, 2086 (bfd_vma) 0, 2087 (symint_t) 0, 2088 (symint_t) 0); 2089 2090 (void) add_ecoff_symbol (name, 2091 st_End, 2092 sc_Info, 2093 (symbolS *) NULL, 2094 (bfd_vma) 0, 2095 (symint_t) 0, 2096 (symint_t) 0); 2097 2098 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) 2099 ; 2100 *pf = ptag->forward_ref; 2101} 2102 2103/* Add a procedure to the current file's list of procedures, and record 2104 this is the current procedure. If AENT, then only set the requested 2105 symbol's function type. */ 2106 2107static void 2108add_procedure (char *func /* func name */, int aent) 2109{ 2110 varray_t *vp; 2111 proc_t *new_proc_ptr; 2112 symbolS *sym; 2113 2114#ifdef ECOFF_DEBUG 2115 if (debug) 2116 fputc ('\n', stderr); 2117#endif 2118 2119 /* Set the BSF_FUNCTION flag for the symbol. */ 2120 sym = symbol_find_or_make (func); 2121 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; 2122 2123 if (aent) 2124 return; 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 /* Push the start of the function. */ 2147 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, 2148 sym, (bfd_vma) 0, (symint_t) 0, 2149 (symint_t) 0); 2150 2151 ++proc_cnt; 2152 2153 /* Fill in the linenos preceding the .ent, if any. */ 2154 if (noproc_lineno != (lineno_list_t *) NULL) 2155 { 2156 lineno_list_t *l; 2157 2158 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) 2159 l->proc = new_proc_ptr; 2160 *last_lineno_ptr = noproc_lineno; 2161 while (*last_lineno_ptr != NULL) 2162 { 2163 last_lineno = *last_lineno_ptr; 2164 last_lineno_ptr = &last_lineno->next; 2165 } 2166 noproc_lineno = (lineno_list_t *) NULL; 2167 } 2168} 2169 2170symbolS * 2171ecoff_get_cur_proc_sym (void) 2172{ 2173 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL); 2174} 2175 2176/* Add a new filename, and set up all of the file relative 2177 virtual arrays (strings, symbols, aux syms, etc.). Record 2178 where the current file structure lives. */ 2179 2180static void 2181add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake) 2182{ 2183 int first_ch; 2184 efdr_t *fil_ptr; 2185 2186#ifdef ECOFF_DEBUG 2187 if (debug) 2188 fprintf (stderr, "\tfile\t%.*s\n", len, file_start); 2189#endif 2190 2191 /* If the file name is NULL, then no .file symbol appeared, and we 2192 want to use the actual file name. */ 2193 if (file_name == (const char *) NULL) 2194 { 2195 if (first_file != (efdr_t *) NULL) 2196 as_fatal (_("fake .file after real one")); 2197 file_name = as_where ((unsigned int *) NULL); 2198 2199 /* Automatically generate ECOFF debugging information, since I 2200 think that's what other ECOFF assemblers do. We don't do 2201 this if we see a .file directive with a string, since that 2202 implies that some sort of debugging information is being 2203 provided. */ 2204 if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED) 2205 debug_type = DEBUG_ECOFF; 2206 } 2207 else if (debug_type == DEBUG_UNSPECIFIED) 2208 debug_type = DEBUG_NONE; 2209 2210#ifndef NO_LISTING 2211 if (listing) 2212 listing_source_file (file_name); 2213#endif 2214 2215 current_stabs_filename = file_name; 2216 2217 /* If we're creating stabs, then we don't actually make a new FDR. 2218 Instead, we just create a stabs symbol. */ 2219 if (stabs_seen) 2220 { 2221 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, 2222 symbol_new (FAKE_LABEL_NAME, now_seg, 2223 frag_now, frag_now_fix ()), 2224 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL)); 2225 return; 2226 } 2227 2228 first_ch = *file_name; 2229 2230 /* FIXME: We can't safely merge files which have line number 2231 information (fMerge will be zero in this case). Otherwise, we 2232 get incorrect line number debugging info. See for instance 2233 ecoff_build_lineno, which will end up setting all file->fdr.* 2234 fields multiple times, resulting in incorrect debug info. In 2235 order to make this work right, all line number and symbol info 2236 for the same source file has to be adjacent in the object file, 2237 so that a single file descriptor can be used to point to them. 2238 This would require maintaining file specific lists of line 2239 numbers and symbols for each file, so that they can be merged 2240 together (or output together) when two .file pseudo-ops are 2241 merged into one file descriptor. */ 2242 2243 /* See if the file has already been created. */ 2244 for (fil_ptr = first_file; 2245 fil_ptr != (efdr_t *) NULL; 2246 fil_ptr = fil_ptr->next_file) 2247 { 2248 if (first_ch == fil_ptr->name[0] 2249 && filename_cmp (file_name, fil_ptr->name) == 0 2250 && fil_ptr->fdr.fMerge) 2251 { 2252 cur_file_ptr = fil_ptr; 2253 if (! fake) 2254 cur_file_ptr->fake = 0; 2255 break; 2256 } 2257 } 2258 2259 /* If this is a new file, create it. */ 2260 if (fil_ptr == (efdr_t *) NULL) 2261 { 2262 if (file_desc.objects_last_page == file_desc.objects_per_page) 2263 add_varray_page (&file_desc); 2264 2265 fil_ptr = cur_file_ptr = 2266 &file_desc.last->datum->file[file_desc.objects_last_page++]; 2267 *fil_ptr = init_file; 2268 2269 fil_ptr->file_index = current_file_idx++; 2270 ++file_desc.num_allocated; 2271 2272 fil_ptr->fake = fake; 2273 2274 /* Allocate the string hash table. */ 2275 fil_ptr->str_hash = str_htab_create (); 2276 2277 /* Make sure 0 byte in string table is null */ 2278 add_string (&fil_ptr->strings, 2279 fil_ptr->str_hash, 2280 "", 2281 (shash_t **)0); 2282 2283 if (strlen (file_name) > PAGE_USIZE - 2) 2284 as_fatal (_("filename goes over one page boundary")); 2285 2286 /* Push the start of the filename. We assume that the filename 2287 will be stored at string offset 1. */ 2288 (void) add_ecoff_symbol (file_name, st_File, sc_Text, 2289 (symbolS *) NULL, (bfd_vma) 0, 2290 (symint_t) 0, (symint_t) 0); 2291 fil_ptr->fdr.rss = 1; 2292 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; 2293 2294 /* Update the linked list of file descriptors. */ 2295 *last_file_ptr = fil_ptr; 2296 last_file_ptr = &fil_ptr->next_file; 2297 2298 /* Add void & int types to the file (void should be first to catch 2299 errant 0's within the index fields). */ 2300 fil_ptr->void_type = add_aux_sym_tir (&void_type_info, 2301 hash_yes, 2302 &cur_file_ptr->thash_head[0]); 2303 2304 fil_ptr->int_type = add_aux_sym_tir (&int_type_info, 2305 hash_yes, 2306 &cur_file_ptr->thash_head[0]); 2307 } 2308} 2309 2310/* This function is called when the assembler notices a preprocessor 2311 directive switching to a new file. This will not happen in 2312 compiler output, only in hand coded assembler. */ 2313 2314void 2315ecoff_new_file (const char *name, int appfile ATTRIBUTE_UNUSED) 2316{ 2317 if (cur_file_ptr != NULL && filename_cmp (cur_file_ptr->name, name) == 0) 2318 return; 2319 add_file (name, 0, 0); 2320 2321 /* This is a hand coded assembler file, so automatically turn on 2322 debugging information. */ 2323 if (debug_type == DEBUG_UNSPECIFIED) 2324 debug_type = DEBUG_ECOFF; 2325} 2326 2327#ifdef ECOFF_DEBUG 2328 2329/* Convert storage class to string. */ 2330 2331static char * 2332sc_to_string (storage_class) 2333 sc_t storage_class; 2334{ 2335 switch (storage_class) 2336 { 2337 case sc_Nil: return "Nil,"; 2338 case sc_Text: return "Text,"; 2339 case sc_Data: return "Data,"; 2340 case sc_Bss: return "Bss,"; 2341 case sc_Register: return "Register,"; 2342 case sc_Abs: return "Abs,"; 2343 case sc_Undefined: return "Undefined,"; 2344 case sc_CdbLocal: return "CdbLocal,"; 2345 case sc_Bits: return "Bits,"; 2346 case sc_CdbSystem: return "CdbSystem,"; 2347 case sc_RegImage: return "RegImage,"; 2348 case sc_Info: return "Info,"; 2349 case sc_UserStruct: return "UserStruct,"; 2350 case sc_SData: return "SData,"; 2351 case sc_SBss: return "SBss,"; 2352 case sc_RData: return "RData,"; 2353 case sc_Var: return "Var,"; 2354 case sc_Common: return "Common,"; 2355 case sc_SCommon: return "SCommon,"; 2356 case sc_VarRegister: return "VarRegister,"; 2357 case sc_Variant: return "Variant,"; 2358 case sc_SUndefined: return "SUndefined,"; 2359 case sc_Init: return "Init,"; 2360 case sc_Max: return "Max,"; 2361 } 2362 2363 return "???,"; 2364} 2365 2366#endif /* DEBUG */ 2367 2368#ifdef ECOFF_DEBUG 2369 2370/* Convert symbol type to string. */ 2371 2372static char * 2373st_to_string (symbol_type) 2374 st_t symbol_type; 2375{ 2376 switch (symbol_type) 2377 { 2378 case st_Nil: return "Nil,"; 2379 case st_Global: return "Global,"; 2380 case st_Static: return "Static,"; 2381 case st_Param: return "Param,"; 2382 case st_Local: return "Local,"; 2383 case st_Label: return "Label,"; 2384 case st_Proc: return "Proc,"; 2385 case st_Block: return "Block,"; 2386 case st_End: return "End,"; 2387 case st_Member: return "Member,"; 2388 case st_Typedef: return "Typedef,"; 2389 case st_File: return "File,"; 2390 case st_RegReloc: return "RegReloc,"; 2391 case st_Forward: return "Forward,"; 2392 case st_StaticProc: return "StaticProc,"; 2393 case st_Constant: return "Constant,"; 2394 case st_Str: return "String,"; 2395 case st_Number: return "Number,"; 2396 case st_Expr: return "Expr,"; 2397 case st_Type: return "Type,"; 2398 case st_Max: return "Max,"; 2399 } 2400 2401 return "???,"; 2402} 2403 2404#endif /* DEBUG */ 2405 2406/* Parse .begin directives which have a label as the first argument 2407 which gives the location of the start of the block. */ 2408 2409void 2410ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED) 2411{ 2412 char *name; 2413 char name_end; 2414 2415 if (cur_file_ptr == (efdr_t *) NULL) 2416 { 2417 as_warn (_(".begin directive without a preceding .file directive")); 2418 demand_empty_rest_of_line (); 2419 return; 2420 } 2421 2422 if (cur_proc_ptr == (proc_t *) NULL) 2423 { 2424 as_warn (_(".begin directive without a preceding .ent directive")); 2425 demand_empty_rest_of_line (); 2426 return; 2427 } 2428 2429 name_end = get_symbol_name (&name); 2430 2431 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, 2432 symbol_find_or_make (name), 2433 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 2434 2435 (void) restore_line_pointer (name_end); 2436 2437 /* The line number follows, but we don't use it. */ 2438 (void) get_absolute_expression (); 2439 demand_empty_rest_of_line (); 2440} 2441 2442/* Parse .bend directives which have a label as the first argument 2443 which gives the location of the end of the block. */ 2444 2445void 2446ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED) 2447{ 2448 char *name; 2449 char name_end; 2450 symbolS *endsym; 2451 2452 if (cur_file_ptr == (efdr_t *) NULL) 2453 { 2454 as_warn (_(".bend directive without a preceding .file directive")); 2455 demand_empty_rest_of_line (); 2456 return; 2457 } 2458 2459 if (cur_proc_ptr == (proc_t *) NULL) 2460 { 2461 as_warn (_(".bend directive without a preceding .ent directive")); 2462 demand_empty_rest_of_line (); 2463 return; 2464 } 2465 2466 name_end = get_symbol_name (&name); 2467 2468 /* The value is the distance between the .bend directive and the 2469 corresponding symbol. We fill in the offset when we write out 2470 the symbol. */ 2471 endsym = symbol_find (name); 2472 if (endsym == (symbolS *) NULL) 2473 as_warn (_(".bend directive names unknown symbol")); 2474 else 2475 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, 2476 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 2477 2478 restore_line_pointer (name_end); 2479 2480 /* The line number follows, but we don't use it. */ 2481 (void) get_absolute_expression (); 2482 demand_empty_rest_of_line (); 2483} 2484 2485/* COFF debugging information is provided as a series of directives 2486 (.def, .scl, etc.). We build up information as we read the 2487 directives in the following static variables, and file it away when 2488 we reach the .endef directive. */ 2489static char *coff_sym_name; 2490static type_info_t coff_type; 2491static sc_t coff_storage_class; 2492static st_t coff_symbol_typ; 2493static int coff_is_function; 2494static char *coff_tag; 2495static valueT coff_value; 2496static symbolS *coff_sym_value; 2497static bfd_vma coff_sym_addend; 2498static int coff_inside_enumeration; 2499 2500/* Handle a .def directive: start defining a symbol. */ 2501 2502void 2503ecoff_directive_def (int ignore ATTRIBUTE_UNUSED) 2504{ 2505 char *name; 2506 char name_end; 2507 2508 ecoff_debugging_seen = 1; 2509 2510 SKIP_WHITESPACE (); 2511 2512 name_end = get_symbol_name (&name); 2513 2514 if (coff_sym_name != (char *) NULL) 2515 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored")); 2516 else if (*name == '\0') 2517 as_warn (_("empty symbol name in .def; ignored")); 2518 else 2519 { 2520 free (coff_sym_name); 2521 free (coff_tag); 2522 2523 coff_sym_name = xstrdup (name); 2524 coff_type = type_info_init; 2525 coff_storage_class = sc_Nil; 2526 coff_symbol_typ = st_Nil; 2527 coff_is_function = 0; 2528 coff_tag = (char *) NULL; 2529 coff_value = 0; 2530 coff_sym_value = (symbolS *) NULL; 2531 coff_sym_addend = 0; 2532 } 2533 2534 restore_line_pointer (name_end); 2535 2536 demand_empty_rest_of_line (); 2537} 2538 2539/* Handle a .dim directive, used to give dimensions for an array. The 2540 arguments are comma separated numbers. mips-tfile assumes that 2541 there will not be more than 6 dimensions, and gdb won't read any 2542 more than that anyhow, so I will also make that assumption. */ 2543 2544void 2545ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED) 2546{ 2547 int dimens[N_TQ]; 2548 int i; 2549 2550 if (coff_sym_name == (char *) NULL) 2551 { 2552 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored")); 2553 demand_empty_rest_of_line (); 2554 return; 2555 } 2556 2557 for (i = 0; i < N_TQ; i++) 2558 { 2559 SKIP_WHITESPACE (); 2560 dimens[i] = get_absolute_expression (); 2561 if (*input_line_pointer == ',') 2562 ++input_line_pointer; 2563 else 2564 { 2565 if (*input_line_pointer != '\n' 2566 && *input_line_pointer != ';') 2567 as_warn (_("badly formed .dim directive")); 2568 break; 2569 } 2570 } 2571 2572 if (i == N_TQ) 2573 --i; 2574 2575 /* The dimensions are stored away in reverse order. */ 2576 for (; i >= 0; i--) 2577 { 2578 if (coff_type.num_dims >= N_TQ) 2579 { 2580 as_warn (_("too many .dim entries")); 2581 break; 2582 } 2583 coff_type.dimensions[coff_type.num_dims] = dimens[i]; 2584 ++coff_type.num_dims; 2585 } 2586 2587 demand_empty_rest_of_line (); 2588} 2589 2590/* Handle a .scl directive, which sets the COFF storage class of the 2591 symbol. */ 2592 2593void 2594ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED) 2595{ 2596 long val; 2597 2598 if (coff_sym_name == (char *) NULL) 2599 { 2600 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored")); 2601 demand_empty_rest_of_line (); 2602 return; 2603 } 2604 2605 val = get_absolute_expression (); 2606 2607 coff_symbol_typ = map_coff_sym_type[val]; 2608 coff_storage_class = map_coff_storage[val]; 2609 2610 demand_empty_rest_of_line (); 2611} 2612 2613/* Handle a .size directive. For some reason mips-tfile.c thinks that 2614 .size can have multiple arguments. We humor it, although gcc will 2615 never generate more than one argument. */ 2616 2617void 2618ecoff_directive_size (int ignore ATTRIBUTE_UNUSED) 2619{ 2620 int sizes[N_TQ]; 2621 int i; 2622 2623 if (coff_sym_name == (char *) NULL) 2624 { 2625 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored")); 2626 demand_empty_rest_of_line (); 2627 return; 2628 } 2629 2630 for (i = 0; i < N_TQ; i++) 2631 { 2632 SKIP_WHITESPACE (); 2633 sizes[i] = get_absolute_expression (); 2634 if (*input_line_pointer == ',') 2635 ++input_line_pointer; 2636 else 2637 { 2638 if (*input_line_pointer != '\n' 2639 && *input_line_pointer != ';') 2640 as_warn (_("badly formed .size directive")); 2641 break; 2642 } 2643 } 2644 2645 if (i == N_TQ) 2646 --i; 2647 2648 /* The sizes are stored away in reverse order. */ 2649 for (; i >= 0; i--) 2650 { 2651 if (coff_type.num_sizes >= N_TQ) 2652 { 2653 as_warn (_("too many .size entries")); 2654 break; 2655 } 2656 coff_type.sizes[coff_type.num_sizes] = sizes[i]; 2657 ++coff_type.num_sizes; 2658 } 2659 2660 demand_empty_rest_of_line (); 2661} 2662 2663/* Handle the .type directive, which gives the COFF type of the 2664 symbol. */ 2665 2666void 2667ecoff_directive_type (int ignore ATTRIBUTE_UNUSED) 2668{ 2669 long val; 2670 tq_t *tq_ptr; 2671 tq_t *tq_shft; 2672 2673 if (coff_sym_name == (char *) NULL) 2674 { 2675 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored")); 2676 demand_empty_rest_of_line (); 2677 return; 2678 } 2679 2680 val = get_absolute_expression (); 2681 2682 coff_type.orig_type = BTYPE (val); 2683 coff_type.basic_type = map_coff_types[coff_type.orig_type]; 2684 2685 tq_ptr = &coff_type.type_qualifiers[N_TQ]; 2686 while (val & ~N_BTMASK) 2687 { 2688 if (tq_ptr == &coff_type.type_qualifiers[0]) 2689 { 2690 /* FIXME: We could handle this by setting the continued bit. 2691 There would still be a limit: the .type argument can not 2692 be infinite. */ 2693 as_warn (_("the type of %s is too complex; it will be simplified"), 2694 coff_sym_name); 2695 break; 2696 } 2697 if (ISPTR (val)) 2698 *--tq_ptr = tq_Ptr; 2699 else if (ISFCN (val)) 2700 *--tq_ptr = tq_Proc; 2701 else if (ISARY (val)) 2702 *--tq_ptr = tq_Array; 2703 else 2704 as_fatal (_("Unrecognized .type argument")); 2705 2706 val = DECREF (val); 2707 } 2708 2709 tq_shft = &coff_type.type_qualifiers[0]; 2710 while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) 2711 *tq_shft++ = *tq_ptr++; 2712 2713 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) 2714 { 2715 /* If this is a function, ignore it, so that we don't get two 2716 entries (one from the .ent, and one for the .def that 2717 precedes it). Save the type information so that the end 2718 block can properly add it after the begin block index. For 2719 MIPS knows what reason, we must strip off the function type 2720 at this point. */ 2721 coff_is_function = 1; 2722 tq_shft[-1] = tq_Nil; 2723 } 2724 2725 while (tq_shft != &coff_type.type_qualifiers[N_TQ]) 2726 *tq_shft++ = tq_Nil; 2727 2728 demand_empty_rest_of_line (); 2729} 2730 2731/* Handle the .tag directive, which gives the name of a structure, 2732 union or enum. */ 2733 2734void 2735ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED) 2736{ 2737 char *name; 2738 char name_end; 2739 2740 if (coff_sym_name == (char *) NULL) 2741 { 2742 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored")); 2743 demand_empty_rest_of_line (); 2744 return; 2745 } 2746 2747 name_end = get_symbol_name (&name); 2748 2749 coff_tag = xstrdup (name); 2750 2751 (void) restore_line_pointer (name_end); 2752 2753 demand_empty_rest_of_line (); 2754} 2755 2756/* Handle the .val directive, which gives the value of the symbol. It 2757 may be the name of a static or global symbol. */ 2758 2759void 2760ecoff_directive_val (int ignore ATTRIBUTE_UNUSED) 2761{ 2762 expressionS exp; 2763 2764 if (coff_sym_name == (char *) NULL) 2765 { 2766 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored")); 2767 demand_empty_rest_of_line (); 2768 return; 2769 } 2770 2771 expression (&exp); 2772 if (exp.X_op != O_constant && exp.X_op != O_symbol) 2773 { 2774 as_bad (_(".val expression is too complex")); 2775 demand_empty_rest_of_line (); 2776 return; 2777 } 2778 2779 if (exp.X_op == O_constant) 2780 coff_value = exp.X_add_number; 2781 else 2782 { 2783 coff_sym_value = exp.X_add_symbol; 2784 coff_sym_addend = exp.X_add_number; 2785 } 2786 2787 demand_empty_rest_of_line (); 2788} 2789 2790/* Handle the .endef directive, which terminates processing of COFF 2791 debugging information for a symbol. */ 2792 2793void 2794ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED) 2795{ 2796 char *name; 2797 symint_t indx; 2798 localsym_t *sym; 2799 2800 demand_empty_rest_of_line (); 2801 2802 if (coff_sym_name == (char *) NULL) 2803 { 2804 as_warn (_(".endef pseudo-op used before .def; ignored")); 2805 return; 2806 } 2807 2808 name = coff_sym_name; 2809 coff_sym_name = (char *) NULL; 2810 2811 /* If the symbol is a static or external, we have already gotten the 2812 appropriate type and class, so make sure we don't override those 2813 values. This is needed because there are some type and classes 2814 that are not in COFF, such as short data, etc. */ 2815 if (coff_sym_value != (symbolS *) NULL) 2816 { 2817 coff_symbol_typ = st_Nil; 2818 coff_storage_class = sc_Nil; 2819 } 2820 2821 coff_type.extra_sizes = coff_tag != (char *) NULL; 2822 if (coff_type.num_dims > 0) 2823 { 2824 int diff = coff_type.num_dims - coff_type.num_sizes; 2825 int i = coff_type.num_dims - 1; 2826 int j; 2827 2828 if (coff_type.num_sizes != 1 || diff < 0) 2829 { 2830 as_warn (_("bad COFF debugging information")); 2831 return; 2832 } 2833 2834 /* If this is an array, make sure the same number of dimensions 2835 and sizes were passed, creating extra sizes for multiply 2836 dimensioned arrays if not passed. */ 2837 coff_type.extra_sizes = 0; 2838 if (diff) 2839 { 2840 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; 2841 while (j >= 0) 2842 { 2843 coff_type.sizes[j] = (((j - diff) >= 0) 2844 ? coff_type.sizes[j - diff] 2845 : 0); 2846 j--; 2847 } 2848 2849 coff_type.num_sizes = i + 1; 2850 for (i--; i >= 0; i--) 2851 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0 2852 ? 0 2853 : (coff_type.sizes[i + 1] 2854 / coff_type.dimensions[i + 1])); 2855 } 2856 } 2857 else if (coff_symbol_typ == st_Member 2858 && coff_type.num_sizes - coff_type.extra_sizes == 1) 2859 { 2860 /* Is this a bitfield? This is indicated by a structure member 2861 having a size field that isn't an array. */ 2862 coff_type.bitfield = 1; 2863 } 2864 2865 /* Except for enumeration members & begin/ending of scopes, put the 2866 type word in the aux. symbol table. */ 2867 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) 2868 indx = 0; 2869 else if (coff_inside_enumeration) 2870 indx = cur_file_ptr->void_type; 2871 else 2872 { 2873 if (coff_type.basic_type == bt_Struct 2874 || coff_type.basic_type == bt_Union 2875 || coff_type.basic_type == bt_Enum) 2876 { 2877 if (coff_tag == (char *) NULL) 2878 { 2879 as_warn (_("no tag specified for %s"), name); 2880 return; 2881 } 2882 2883 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, 2884 coff_type.basic_type); 2885 } 2886 2887 if (coff_is_function) 2888 { 2889 last_func_type_info = coff_type; 2890 last_func_sym_value = coff_sym_value; 2891 return; 2892 } 2893 2894 indx = add_aux_sym_tir (&coff_type, 2895 hash_yes, 2896 &cur_file_ptr->thash_head[0]); 2897 } 2898 2899 /* Do any last minute adjustments that are necessary. */ 2900 switch (coff_symbol_typ) 2901 { 2902 default: 2903 break; 2904 2905 /* For the beginning of structs, unions, and enumerations, the 2906 size info needs to be passed in the value field. */ 2907 case st_Block: 2908 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes 2909 != 1) 2910 { 2911 as_warn (_("bad COFF debugging information")); 2912 return; 2913 } 2914 else 2915 coff_value = coff_type.sizes[0]; 2916 2917 coff_inside_enumeration = (coff_type.orig_type == T_ENUM); 2918 break; 2919 2920 /* For the end of structs, unions, and enumerations, omit the 2921 name which is always ".eos". This needs to be done last, so 2922 that any error reporting above gives the correct name. */ 2923 case st_End: 2924 free (name); 2925 name = (char *) NULL; 2926 coff_value = 0; 2927 coff_inside_enumeration = 0; 2928 break; 2929 2930 /* Members of structures and unions that aren't bitfields, need 2931 to adjust the value from a byte offset to a bit offset. 2932 Members of enumerations do not have the value adjusted, and 2933 can be distinguished by indx == indexNil. For enumerations, 2934 update the maximum enumeration value. */ 2935 case st_Member: 2936 if (! coff_type.bitfield && ! coff_inside_enumeration) 2937 coff_value *= 8; 2938 2939 break; 2940 } 2941 2942 /* Add the symbol. */ 2943 sym = add_ecoff_symbol (name, 2944 coff_symbol_typ, 2945 coff_storage_class, 2946 coff_sym_value, 2947 coff_sym_addend, 2948 (symint_t) coff_value, 2949 indx); 2950 2951 /* deal with struct, union, and enum tags. */ 2952 if (coff_symbol_typ == st_Block) 2953 { 2954 /* Create or update the tag information. */ 2955 tag_t *tag_ptr = get_tag (name, 2956 sym, 2957 coff_type.basic_type); 2958 forward_t **pf; 2959 2960 /* Remember any forward references. */ 2961 for (pf = &sym->forward_ref; 2962 *pf != (forward_t *) NULL; 2963 pf = &(*pf)->next) 2964 ; 2965 *pf = tag_ptr->forward_ref; 2966 tag_ptr->forward_ref = (forward_t *) NULL; 2967 } 2968} 2969 2970/* Parse .end directives. */ 2971 2972void 2973ecoff_directive_end (int ignore ATTRIBUTE_UNUSED) 2974{ 2975 char *name; 2976 char name_end; 2977 symbolS *ent; 2978 2979 if (cur_file_ptr == (efdr_t *) NULL) 2980 { 2981 as_warn (_(".end directive without a preceding .file directive")); 2982 demand_empty_rest_of_line (); 2983 return; 2984 } 2985 2986 if (cur_proc_ptr == (proc_t *) NULL) 2987 { 2988 as_warn (_(".end directive without a preceding .ent directive")); 2989 demand_empty_rest_of_line (); 2990 return; 2991 } 2992 2993 name_end = get_symbol_name (&name); 2994 2995 if (name == input_line_pointer) 2996 { 2997 as_warn (_(".end directive has no name")); 2998 (void) restore_line_pointer (name_end); 2999 demand_empty_rest_of_line (); 3000 return; 3001 } 3002 3003 /* The value is the distance between the .end directive and the 3004 corresponding symbol. We create a fake symbol to hold the 3005 current location, and put in the offset when we write out the 3006 symbol. */ 3007 ent = symbol_find (name); 3008 if (ent == (symbolS *) NULL) 3009 as_warn (_(".end directive names unknown symbol")); 3010 else 3011 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, 3012 symbol_new (FAKE_LABEL_NAME, now_seg, 3013 frag_now, frag_now_fix ()), 3014 (bfd_vma) 0, (symint_t) 0, (symint_t) 0); 3015 3016#ifdef md_flush_pending_output 3017 md_flush_pending_output (); 3018#endif 3019 3020 cur_proc_ptr = (proc_t *) NULL; 3021 3022 (void) restore_line_pointer (name_end); 3023 demand_empty_rest_of_line (); 3024} 3025 3026/* Parse .ent directives. */ 3027 3028void 3029ecoff_directive_ent (int aent) 3030{ 3031 char *name; 3032 char name_end; 3033 3034 if (cur_file_ptr == (efdr_t *) NULL) 3035 add_file ((const char *) NULL, 0, 1); 3036 3037 if (!aent && cur_proc_ptr != (proc_t *) NULL) 3038 { 3039 as_warn (_("second .ent directive found before .end directive")); 3040 demand_empty_rest_of_line (); 3041 return; 3042 } 3043 3044 name_end = get_symbol_name (&name); 3045 3046 if (name == input_line_pointer) 3047 { 3048 as_warn (_("%s directive has no name"), aent ? ".aent" : ".ent"); 3049 (void) restore_line_pointer (name_end); 3050 demand_empty_rest_of_line (); 3051 return; 3052 } 3053 3054 add_procedure (name, aent); 3055 3056 (void) restore_line_pointer (name_end); 3057 3058 /* The .ent directive is sometimes followed by a number. I'm not 3059 really sure what the number means. I don't see any way to store 3060 the information in the PDR. The Irix 4 assembler seems to ignore 3061 the information. */ 3062 SKIP_WHITESPACE (); 3063 if (*input_line_pointer == ',') 3064 { 3065 ++input_line_pointer; 3066 SKIP_WHITESPACE (); 3067 } 3068 if (ISDIGIT (*input_line_pointer) 3069 || *input_line_pointer == '-') 3070 (void) get_absolute_expression (); 3071 3072 demand_empty_rest_of_line (); 3073} 3074 3075/* Parse .extern directives. */ 3076 3077void 3078ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED) 3079{ 3080 char *name; 3081 int c; 3082 symbolS *symbolp; 3083 valueT size; 3084 3085 c = get_symbol_name (&name); 3086 symbolp = symbol_find_or_make (name); 3087 (void) restore_line_pointer (c); 3088 3089 S_SET_EXTERNAL (symbolp); 3090 3091 if (*input_line_pointer == ',') 3092 ++input_line_pointer; 3093 size = get_absolute_expression (); 3094 3095 symbol_get_obj (symbolp)->ecoff_extern_size = size; 3096} 3097 3098/* Parse .file directives. */ 3099 3100void 3101ecoff_directive_file (int ignore ATTRIBUTE_UNUSED) 3102{ 3103 int indx; 3104 char *name; 3105 int len; 3106 3107 if (cur_proc_ptr != (proc_t *) NULL) 3108 { 3109 as_warn (_("no way to handle .file within .ent/.end section")); 3110 demand_empty_rest_of_line (); 3111 return; 3112 } 3113 3114 indx = (int) get_absolute_expression (); 3115 3116 /* FIXME: we don't have to save the name here. */ 3117 name = demand_copy_C_string (&len); 3118 3119 add_file (name, indx - 1, 0); 3120 3121 demand_empty_rest_of_line (); 3122} 3123 3124/* Parse .fmask directives. */ 3125 3126void 3127ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED) 3128{ 3129 long val; 3130 3131 if (cur_proc_ptr == (proc_t *) NULL) 3132 { 3133 as_warn (_(".fmask outside of .ent")); 3134 demand_empty_rest_of_line (); 3135 return; 3136 } 3137 3138 if (get_absolute_expression_and_terminator (&val) != ',') 3139 { 3140 as_warn (_("bad .fmask directive")); 3141 --input_line_pointer; 3142 demand_empty_rest_of_line (); 3143 return; 3144 } 3145 3146 cur_proc_ptr->pdr.fregmask = val; 3147 cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); 3148 3149 demand_empty_rest_of_line (); 3150} 3151 3152/* Parse .frame directives. */ 3153 3154void 3155ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED) 3156{ 3157 long val; 3158 3159 if (cur_proc_ptr == (proc_t *) NULL) 3160 { 3161 as_warn (_(".frame outside of .ent")); 3162 demand_empty_rest_of_line (); 3163 return; 3164 } 3165 3166 cur_proc_ptr->pdr.framereg = tc_get_register (1); 3167 3168 SKIP_WHITESPACE (); 3169 if (*input_line_pointer++ != ',' 3170 || get_absolute_expression_and_terminator (&val) != ',') 3171 { 3172 as_warn (_("bad .frame directive")); 3173 --input_line_pointer; 3174 demand_empty_rest_of_line (); 3175 return; 3176 } 3177 3178 cur_proc_ptr->pdr.frameoffset = val; 3179 3180 cur_proc_ptr->pdr.pcreg = tc_get_register (0); 3181 3182 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to 3183 Sandro. I don't yet know where this value should be stored, if 3184 anywhere. Don't call demand_empty_rest_of_line (). */ 3185 s_ignore (42); 3186} 3187 3188/* Parse .mask directives. */ 3189 3190void 3191ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED) 3192{ 3193 long val; 3194 3195 if (cur_proc_ptr == (proc_t *) NULL) 3196 { 3197 as_warn (_(".mask outside of .ent")); 3198 demand_empty_rest_of_line (); 3199 return; 3200 } 3201 3202 if (get_absolute_expression_and_terminator (&val) != ',') 3203 { 3204 as_warn (_("bad .mask directive")); 3205 --input_line_pointer; 3206 demand_empty_rest_of_line (); 3207 return; 3208 } 3209 3210 cur_proc_ptr->pdr.regmask = val; 3211 cur_proc_ptr->pdr.regoffset = get_absolute_expression (); 3212 3213 demand_empty_rest_of_line (); 3214} 3215 3216/* Parse .loc directives. */ 3217 3218void 3219ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED) 3220{ 3221 lineno_list_t *list; 3222 symint_t lineno; 3223 3224 if (cur_file_ptr == (efdr_t *) NULL) 3225 { 3226 as_warn (_(".loc before .file")); 3227 demand_empty_rest_of_line (); 3228 return; 3229 } 3230 3231 if (now_seg != text_section) 3232 { 3233 as_warn (_(".loc outside of .text")); 3234 demand_empty_rest_of_line (); 3235 return; 3236 } 3237 3238 /* Skip the file number. */ 3239 SKIP_WHITESPACE (); 3240 get_absolute_expression (); 3241 SKIP_WHITESPACE (); 3242 3243 lineno = get_absolute_expression (); 3244 3245#ifndef NO_LISTING 3246 if (listing) 3247 listing_source_line (lineno); 3248#endif 3249 3250 /* If we're building stabs, then output a special label rather than 3251 ECOFF line number info. */ 3252 if (stabs_seen) 3253 { 3254 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, 3255 symbol_new (FAKE_LABEL_NAME, now_seg, 3256 frag_now, frag_now_fix ()), 3257 (bfd_vma) 0, 0, lineno); 3258 return; 3259 } 3260 3261 list = allocate_lineno_list (); 3262 3263 list->next = (lineno_list_t *) NULL; 3264 list->file = cur_file_ptr; 3265 list->proc = cur_proc_ptr; 3266 list->frag = frag_now; 3267 list->paddr = frag_now_fix (); 3268 list->lineno = lineno; 3269 3270 /* We don't want to merge files which have line numbers. */ 3271 cur_file_ptr->fdr.fMerge = 0; 3272 3273 /* A .loc directive will sometimes appear before a .ent directive, 3274 which means that cur_proc_ptr will be NULL here. Arrange to 3275 patch this up. */ 3276 if (cur_proc_ptr == (proc_t *) NULL) 3277 { 3278 lineno_list_t **pl; 3279 3280 pl = &noproc_lineno; 3281 while (*pl != (lineno_list_t *) NULL) 3282 pl = &(*pl)->next; 3283 *pl = list; 3284 } 3285 else 3286 { 3287 last_lineno = list; 3288 *last_lineno_ptr = list; 3289 last_lineno_ptr = &list->next; 3290 } 3291} 3292 3293/* The MIPS assembler sometimes inserts nop instructions in the 3294 instruction stream. When this happens, we must patch up the .loc 3295 information so that it points to the instruction after the nop. */ 3296 3297void 3298ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset) 3299{ 3300 if (last_lineno != NULL 3301 && last_lineno->frag == old_frag 3302 && last_lineno->paddr == old_frag_offset) 3303 { 3304 last_lineno->frag = frag_now; 3305 last_lineno->paddr = frag_now_fix (); 3306 } 3307} 3308 3309/* Make sure the @stabs symbol is emitted. */ 3310 3311static void 3312mark_stabs (int ignore ATTRIBUTE_UNUSED) 3313{ 3314 if (! stabs_seen) 3315 { 3316 /* Add a dummy @stabs symbol. */ 3317 stabs_seen = 1; 3318 (void) add_ecoff_symbol (stabs_symbol, st_Nil, sc_Info, 3319 (symbolS *) NULL, 3320 (bfd_vma) 0, (symint_t) -1, 3321 ECOFF_MARK_STAB (0)); 3322 } 3323} 3324 3325/* Parse .weakext directives. */ 3326#ifndef TC_MIPS 3327/* For TC_MIPS use the version in tc-mips.c. */ 3328void 3329ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED) 3330{ 3331 char *name; 3332 int c; 3333 symbolS *symbolP; 3334 expressionS exp; 3335 3336 c = get_symbol_name (&name); 3337 symbolP = symbol_find_or_make (name); 3338 (void) restore_line_pointer (c); 3339 3340 SKIP_WHITESPACE (); 3341 3342 if (*input_line_pointer == ',') 3343 { 3344 if (S_IS_DEFINED (symbolP)) 3345 { 3346 as_bad (_("symbol `%s' is already defined"), 3347 S_GET_NAME (symbolP)); 3348 ignore_rest_of_line (); 3349 return; 3350 } 3351 3352 ++input_line_pointer; 3353 SKIP_WHITESPACE (); 3354 if (! is_end_of_line[(unsigned char) *input_line_pointer]) 3355 { 3356 expression (&exp); 3357 if (exp.X_op != O_symbol) 3358 { 3359 as_bad (_("bad .weakext directive")); 3360 ignore_rest_of_line (); 3361 return; 3362 } 3363 symbol_set_value_expression (symbolP, &exp); 3364 } 3365 } 3366 3367 S_SET_WEAK (symbolP); 3368 3369 demand_empty_rest_of_line (); 3370} 3371#endif /* not TC_MIPS */ 3372 3373/* Handle .stabs directives. The actual parsing routine is done by a 3374 generic routine. This routine is called via OBJ_PROCESS_STAB. 3375 When this is called, input_line_pointer will be pointing at the 3376 value field of the stab. 3377 3378 .stabs directives have five fields: 3379 "string" a string, encoding the type information. 3380 code a numeric code, defined in <stab.h> 3381 0 a zero 3382 desc a zero or line number 3383 value a numeric value or an address. 3384 3385 If the value is relocatable, we transform this into: 3386 iss points as an index into string space 3387 value value from lookup of the name 3388 st st from lookup of the name 3389 sc sc from lookup of the name 3390 index code|CODE_MASK 3391 3392 If the value is not relocatable, we transform this into: 3393 iss points as an index into string space 3394 value value 3395 st st_Nil 3396 sc sc_Nil 3397 index code|CODE_MASK 3398 3399 .stabn directives have four fields (string is null): 3400 code a numeric code, defined in <stab.h> 3401 0 a zero 3402 desc a zero or a line number 3403 value a numeric value or an address. */ 3404 3405void 3406ecoff_stab (segT sec ATTRIBUTE_UNUSED, 3407 int what, 3408 const char *string, 3409 int type, 3410 int other, 3411 int desc) 3412{ 3413 efdr_t *save_file_ptr = cur_file_ptr; 3414 symbolS *sym; 3415 symint_t value; 3416 bfd_vma addend; 3417 st_t st; 3418 sc_t sc; 3419 symint_t indx; 3420 localsym_t *hold = NULL; 3421 3422 ecoff_debugging_seen = 1; 3423 3424 /* We don't handle .stabd. */ 3425 if (what != 's' && what != 'n') 3426 { 3427 as_bad (_(".stab%c is not supported"), what); 3428 return; 3429 } 3430 3431 /* A .stabn uses a null name, not an empty string. */ 3432 if (what == 'n') 3433 string = NULL; 3434 3435 /* We ignore the other field. */ 3436 if (other != 0) 3437 as_warn (_(".stab%c: ignoring non-zero other field"), what); 3438 3439 /* Make sure we have a current file. */ 3440 if (cur_file_ptr == (efdr_t *) NULL) 3441 { 3442 add_file ((const char *) NULL, 0, 1); 3443 save_file_ptr = cur_file_ptr; 3444 } 3445 3446 /* For stabs in ECOFF, the first symbol must be @stabs. This is a 3447 signal to gdb. */ 3448 if (stabs_seen == 0) 3449 mark_stabs (0); 3450 3451 /* Line number stabs are handled differently, since they have two 3452 values, the line number and the address of the label. We use the 3453 index field (aka desc) to hold the line number, and the value 3454 field to hold the address. The symbol type is st_Label, which 3455 should be different from the other stabs, so that gdb can 3456 recognize it. */ 3457 if (type == N_SLINE) 3458 { 3459 SYMR dummy_symr; 3460 char *name; 3461 char name_end; 3462 3463#ifndef NO_LISTING 3464 if (listing) 3465 listing_source_line ((unsigned int) desc); 3466#endif 3467 3468 dummy_symr.index = desc; 3469 if (dummy_symr.index != desc) 3470 { 3471 as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"), 3472 desc, what); 3473 return; 3474 } 3475 3476 name_end = get_symbol_name (&name); 3477 sym = symbol_find_or_make (name); 3478 (void) restore_line_pointer (name_end); 3479 3480 value = 0; 3481 addend = 0; 3482 st = st_Label; 3483 sc = sc_Text; 3484 indx = desc; 3485 } 3486 else 3487 { 3488#ifndef NO_LISTING 3489 if (listing && (type == N_SO || type == N_SOL)) 3490 listing_source_file (string); 3491#endif 3492 3493 if (ISDIGIT (*input_line_pointer) 3494 || *input_line_pointer == '-' 3495 || *input_line_pointer == '+') 3496 { 3497 st = st_Nil; 3498 sc = sc_Nil; 3499 sym = (symbolS *) NULL; 3500 value = get_absolute_expression (); 3501 addend = 0; 3502 } 3503 else if (! is_name_beginner ((unsigned char) *input_line_pointer)) 3504 { 3505 as_warn (_("illegal .stab%c directive, bad character"), what); 3506 return; 3507 } 3508 else 3509 { 3510 expressionS exp; 3511 3512 sc = sc_Nil; 3513 st = st_Nil; 3514 3515 expression (&exp); 3516 if (exp.X_op == O_constant) 3517 { 3518 sym = NULL; 3519 value = exp.X_add_number; 3520 addend = 0; 3521 } 3522 else if (exp.X_op == O_symbol) 3523 { 3524 sym = exp.X_add_symbol; 3525 value = 0; 3526 addend = exp.X_add_number; 3527 } 3528 else 3529 { 3530 sym = make_expr_symbol (&exp); 3531 value = 0; 3532 addend = 0; 3533 } 3534 } 3535 3536 indx = ECOFF_MARK_STAB (type); 3537 } 3538 3539 /* Don't store the stabs symbol we are creating as the type of the 3540 ECOFF symbol. We want to compute the type of the ECOFF symbol 3541 independently. */ 3542 if (sym != (symbolS *) NULL) 3543 hold = symbol_get_obj (sym)->ecoff_symbol; 3544 3545 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx); 3546 3547 if (sym != (symbolS *) NULL) 3548 symbol_get_obj (sym)->ecoff_symbol = hold; 3549 3550 /* Restore normal file type. */ 3551 cur_file_ptr = save_file_ptr; 3552} 3553 3554/* Frob an ECOFF symbol. Small common symbols go into a special 3555 .scommon section rather than bfd_com_section. */ 3556 3557void 3558ecoff_frob_symbol (symbolS *sym) 3559{ 3560 if (S_IS_COMMON (sym) 3561 && S_GET_VALUE (sym) > 0 3562 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) 3563 { 3564 static asection scom_section; 3565 static asymbol scom_symbol; 3566 3567 /* We must construct a fake section similar to bfd_com_section 3568 but with the name .scommon. */ 3569 if (scom_section.name == NULL) 3570 { 3571 scom_section = *bfd_com_section_ptr; 3572 scom_section.name = ".scommon"; 3573 scom_section.output_section = &scom_section; 3574 scom_section.symbol = &scom_symbol; 3575 scom_section.symbol_ptr_ptr = &scom_section.symbol; 3576 scom_symbol = *bfd_com_section_ptr->symbol; 3577 scom_symbol.name = ".scommon"; 3578 scom_symbol.section = &scom_section; 3579 } 3580 S_SET_SEGMENT (sym, &scom_section); 3581 } 3582 3583 /* Double check weak symbols. */ 3584 if (S_IS_WEAK (sym)) 3585 { 3586 if (S_IS_COMMON (sym)) 3587 as_bad (_("symbol `%s' can not be both weak and common"), 3588 S_GET_NAME (sym)); 3589 } 3590} 3591 3592/* Add bytes to the symbolic information buffer. */ 3593 3594static char * 3595ecoff_add_bytes (char **buf, 3596 char **bufend, 3597 char *bufptr, 3598 unsigned long need) 3599{ 3600 unsigned long at; 3601 unsigned long want; 3602 3603 at = bufptr - *buf; 3604 need -= *bufend - bufptr; 3605 if (need < PAGE_SIZE) 3606 need = PAGE_SIZE; 3607 want = (*bufend - *buf) + need; 3608 *buf = XRESIZEVEC (char, *buf, want); 3609 *bufend = *buf + want; 3610 return *buf + at; 3611} 3612 3613/* Adjust the symbolic information buffer to the alignment required 3614 for the ECOFF target debugging information. */ 3615 3616static unsigned long 3617ecoff_padding_adjust (const struct ecoff_debug_swap *backend, 3618 char **buf, 3619 char **bufend, 3620 unsigned long offset, 3621 char **bufptrptr) 3622{ 3623 bfd_size_type align; 3624 3625 align = backend->debug_align; 3626 if ((offset & (align - 1)) != 0) 3627 { 3628 unsigned long add; 3629 3630 add = align - (offset & (align - 1)); 3631 if ((unsigned long) (*bufend - (*buf + offset)) < add) 3632 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); 3633 memset (*buf + offset, 0, add); 3634 offset += add; 3635 if (bufptrptr != (char **) NULL) 3636 *bufptrptr = *buf + offset; 3637 } 3638 3639 return offset; 3640} 3641 3642/* Build the line number information. */ 3643 3644static unsigned long 3645ecoff_build_lineno (const struct ecoff_debug_swap *backend, 3646 char **buf, 3647 char **bufend, 3648 unsigned long offset, 3649 long *linecntptr) 3650{ 3651 char *bufptr; 3652 lineno_list_t *l; 3653 lineno_list_t *last; 3654 efdr_t *file; 3655 proc_t *proc; 3656 unsigned long c; 3657 long iline; 3658 long totcount; 3659 lineno_list_t first; 3660 lineno_list_t *local_first_lineno = first_lineno; 3661 3662 if (linecntptr != (long *) NULL) 3663 *linecntptr = 0; 3664 3665 bufptr = *buf + offset; 3666 3667 file = (efdr_t *) NULL; 3668 proc = (proc_t *) NULL; 3669 last = (lineno_list_t *) NULL; 3670 c = offset; 3671 iline = 0; 3672 totcount = 0; 3673 3674 /* FIXME? Now that MIPS embedded-PIC is gone, it may be safe to 3675 remove this code. */ 3676 /* For some reason the address of the first procedure is ignored 3677 when reading line numbers. This doesn't matter if the address of 3678 the first procedure is 0, but when gcc is generating MIPS 3679 embedded PIC code, it will put strings in the .text section 3680 before the first procedure. We cope by inserting a dummy line if 3681 the address of the first procedure is not 0. Hopefully this 3682 won't screw things up too badly. 3683 3684 Don't do this for ECOFF assembly source line numbers. They work 3685 without this extra attention. */ 3686 if (debug_type != DEBUG_ECOFF 3687 && first_proc_ptr != (proc_t *) NULL 3688 && local_first_lineno != (lineno_list_t *) NULL 3689 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym) 3690 + bfd_section_vma (S_GET_SEGMENT (first_proc_ptr->sym->as_sym))) 3691 != 0)) 3692 { 3693 first.file = local_first_lineno->file; 3694 first.proc = local_first_lineno->proc; 3695 first.frag = &zero_address_frag; 3696 first.paddr = 0; 3697 first.lineno = 0; 3698 3699 first.next = local_first_lineno; 3700 local_first_lineno = &first; 3701 } 3702 3703 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next) 3704 { 3705 long count; 3706 long delta; 3707 3708 /* Get the offset to the memory address of the next line number 3709 (in words). Do this first, so that we can skip ahead to the 3710 next useful line number entry. */ 3711 if (l->next == (lineno_list_t *) NULL) 3712 { 3713 /* We want a count of zero, but it will be decremented 3714 before it is used. */ 3715 count = 1; 3716 } 3717 else if (l->next->frag->fr_address + l->next->paddr 3718 > l->frag->fr_address + l->paddr) 3719 { 3720 count = ((l->next->frag->fr_address + l->next->paddr 3721 - (l->frag->fr_address + l->paddr)) 3722 >> 2); 3723 } 3724 else 3725 { 3726 /* Don't change last, so we still get the right delta. */ 3727 continue; 3728 } 3729 3730 if (l->file != file || l->proc != proc) 3731 { 3732 if (l->proc != proc && proc != (proc_t *) NULL) 3733 proc->pdr.lnHigh = last->lineno; 3734 if (l->file != file && file != (efdr_t *) NULL) 3735 { 3736 file->fdr.cbLine = c - file->fdr.cbLineOffset; 3737 file->fdr.cline = totcount + count; 3738 if (linecntptr != (long *) NULL) 3739 *linecntptr += totcount + count; 3740 totcount = 0; 3741 } 3742 3743 if (l->file != file) 3744 { 3745 efdr_t *last_file = file; 3746 3747 file = l->file; 3748 if (last_file != (efdr_t *) NULL) 3749 file->fdr.ilineBase 3750 = last_file->fdr.ilineBase + last_file->fdr.cline; 3751 else 3752 file->fdr.ilineBase = 0; 3753 file->fdr.cbLineOffset = c; 3754 } 3755 if (l->proc != proc) 3756 { 3757 proc = l->proc; 3758 if (proc != (proc_t *) NULL) 3759 { 3760 proc->pdr.lnLow = l->lineno; 3761 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; 3762 proc->pdr.iline = totcount; 3763 } 3764 } 3765 3766 last = (lineno_list_t *) NULL; 3767 } 3768 3769 totcount += count; 3770 3771 /* Get the offset to this line number. */ 3772 if (last == (lineno_list_t *) NULL) 3773 delta = 0; 3774 else 3775 delta = l->lineno - last->lineno; 3776 3777 /* Put in the offset to this line number. */ 3778 while (delta != 0) 3779 { 3780 int setcount; 3781 3782 /* 1 is added to each count read. */ 3783 --count; 3784 /* We can only adjust the word count by up to 15 words at a 3785 time. */ 3786 if (count <= 0x0f) 3787 { 3788 setcount = count; 3789 count = 0; 3790 } 3791 else 3792 { 3793 setcount = 0x0f; 3794 count -= 0x0f; 3795 } 3796 if (delta >= -7 && delta <= 7) 3797 { 3798 if (bufptr >= *bufend) 3799 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); 3800 *bufptr++ = setcount + (delta << 4); 3801 delta = 0; 3802 ++c; 3803 } 3804 else 3805 { 3806 int set; 3807 3808 if (*bufend - bufptr < 3) 3809 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); 3810 *bufptr++ = setcount + (8 << 4); 3811 if (delta < -0x8000) 3812 { 3813 set = -0x8000; 3814 delta += 0x8000; 3815 } 3816 else if (delta > 0x7fff) 3817 { 3818 set = 0x7fff; 3819 delta -= 0x7fff; 3820 } 3821 else 3822 { 3823 set = delta; 3824 delta = 0; 3825 } 3826 *bufptr++ = set >> 8; 3827 *bufptr++ = set & 0xffff; 3828 c += 3; 3829 } 3830 } 3831 3832 /* Finish adjusting the count. */ 3833 while (count > 0) 3834 { 3835 if (bufptr >= *bufend) 3836 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); 3837 /* 1 is added to each count read. */ 3838 --count; 3839 if (count > 0x0f) 3840 { 3841 *bufptr++ = 0x0f; 3842 count -= 0x0f; 3843 } 3844 else 3845 { 3846 *bufptr++ = count; 3847 count = 0; 3848 } 3849 ++c; 3850 } 3851 3852 ++iline; 3853 last = l; 3854 } 3855 3856 if (proc != (proc_t *) NULL) 3857 proc->pdr.lnHigh = last->lineno; 3858 if (file != (efdr_t *) NULL) 3859 { 3860 file->fdr.cbLine = c - file->fdr.cbLineOffset; 3861 file->fdr.cline = totcount; 3862 } 3863 3864 if (linecntptr != (long *) NULL) 3865 *linecntptr += totcount; 3866 3867 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); 3868 3869 return c; 3870} 3871 3872/* Build and swap out the symbols. */ 3873 3874static unsigned long 3875ecoff_build_symbols (const struct ecoff_debug_swap *backend, 3876 char **buf, 3877 char **bufend, 3878 unsigned long offset) 3879{ 3880 const bfd_size_type external_sym_size = backend->external_sym_size; 3881 void (* const swap_sym_out) (bfd *, const SYMR *, void *) 3882 = backend->swap_sym_out; 3883 char *sym_out; 3884 long isym; 3885 vlinks_t *file_link; 3886 3887 sym_out = *buf + offset; 3888 3889 isym = 0; 3890 3891 /* The symbols are stored by file. */ 3892 for (file_link = file_desc.first; 3893 file_link != (vlinks_t *) NULL; 3894 file_link = file_link->next) 3895 { 3896 int ifilesym; 3897 int fil_cnt; 3898 efdr_t *fil_ptr; 3899 efdr_t *fil_end; 3900 3901 if (file_link->next == (vlinks_t *) NULL) 3902 fil_cnt = file_desc.objects_last_page; 3903 else 3904 fil_cnt = file_desc.objects_per_page; 3905 fil_ptr = file_link->datum->file; 3906 fil_end = fil_ptr + fil_cnt; 3907 for (; fil_ptr < fil_end; fil_ptr++) 3908 { 3909 vlinks_t *sym_link; 3910 3911 fil_ptr->fdr.isymBase = isym; 3912 ifilesym = isym; 3913 for (sym_link = fil_ptr->symbols.first; 3914 sym_link != (vlinks_t *) NULL; 3915 sym_link = sym_link->next) 3916 { 3917 int sym_cnt; 3918 localsym_t *sym_ptr; 3919 localsym_t *sym_end; 3920 3921 if (sym_link->next == (vlinks_t *) NULL) 3922 sym_cnt = fil_ptr->symbols.objects_last_page; 3923 else 3924 sym_cnt = fil_ptr->symbols.objects_per_page; 3925 sym_ptr = sym_link->datum->sym; 3926 sym_end = sym_ptr + sym_cnt; 3927 for (; sym_ptr < sym_end; sym_ptr++) 3928 { 3929 int local; 3930 symbolS *as_sym; 3931 forward_t *f; 3932 3933 know (sym_ptr->file_ptr == fil_ptr); 3934 3935 /* If there is no associated gas symbol, then this 3936 is a pure debugging symbol. We have already 3937 added the name (if any) to fil_ptr->strings. 3938 Otherwise we must decide whether this is an 3939 external or a local symbol (actually, it may be 3940 both if the local provides additional debugging 3941 information for the external). */ 3942 local = 1; 3943 as_sym = sym_ptr->as_sym; 3944 if (as_sym != (symbolS *) NULL) 3945 { 3946 symint_t indx; 3947 3948 /* The value of a block start symbol is the 3949 offset from the start of the procedure. For 3950 other symbols we just use the gas value (but 3951 we must offset it by the vma of the section, 3952 just as BFD does, because BFD will not see 3953 this value). */ 3954 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block 3955 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) 3956 { 3957 symbolS *begin_sym; 3958 3959 know (sym_ptr->proc_ptr != (proc_t *) NULL); 3960 begin_sym = sym_ptr->proc_ptr->sym->as_sym; 3961 if (S_GET_SEGMENT (as_sym) 3962 != S_GET_SEGMENT (begin_sym)) 3963 as_warn (_(".begin/.bend in different segments")); 3964 sym_ptr->ecoff_sym.asym.value = 3965 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); 3966 } 3967 else 3968 sym_ptr->ecoff_sym.asym.value = 3969 (S_GET_VALUE (as_sym) 3970 + bfd_section_vma (S_GET_SEGMENT (as_sym)) 3971 + sym_ptr->addend); 3972 3973 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym); 3974 3975 /* Set st_Proc to st_StaticProc for local 3976 functions. */ 3977 if (sym_ptr->ecoff_sym.asym.st == st_Proc 3978 && S_IS_DEFINED (as_sym) 3979 && ! S_IS_EXTERNAL (as_sym) 3980 && ! S_IS_WEAK (as_sym)) 3981 sym_ptr->ecoff_sym.asym.st = st_StaticProc; 3982 3983 /* Get the type and storage class based on where 3984 the symbol actually wound up. Traditionally, 3985 N_LBRAC and N_RBRAC are *not* relocated. */ 3986 indx = sym_ptr->ecoff_sym.asym.index; 3987 if (sym_ptr->ecoff_sym.asym.st == st_Nil 3988 && sym_ptr->ecoff_sym.asym.sc == sc_Nil 3989 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) 3990 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) 3991 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) 3992 { 3993 segT seg; 3994 const char *segname; 3995 st_t st; 3996 sc_t sc; 3997 3998 seg = S_GET_SEGMENT (as_sym); 3999 segname = segment_name (seg); 4000 4001 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) 4002 && (S_IS_EXTERNAL (as_sym) 4003 || S_IS_WEAK (as_sym) 4004 || ! S_IS_DEFINED (as_sym))) 4005 { 4006 if ((symbol_get_bfdsym (as_sym)->flags 4007 & BSF_FUNCTION) != 0) 4008 st = st_Proc; 4009 else 4010 st = st_Global; 4011 } 4012 else if (seg == text_section) 4013 st = st_Label; 4014 else 4015 st = st_Static; 4016 4017 if (! S_IS_DEFINED (as_sym)) 4018 { 4019 valueT s; 4020 4021 s = symbol_get_obj (as_sym)->ecoff_extern_size; 4022 if (s == 0 4023 || s > bfd_get_gp_size (stdoutput)) 4024 sc = sc_Undefined; 4025 else 4026 { 4027 sc = sc_SUndefined; 4028 sym_ptr->ecoff_sym.asym.value = s; 4029 } 4030#ifdef S_SET_SIZE 4031 S_SET_SIZE (as_sym, s); 4032#endif 4033 } 4034 else if (S_IS_COMMON (as_sym)) 4035 { 4036 if (S_GET_VALUE (as_sym) > 0 4037 && (S_GET_VALUE (as_sym) 4038 <= bfd_get_gp_size (stdoutput))) 4039 sc = sc_SCommon; 4040 else 4041 sc = sc_Common; 4042 } 4043 else if (seg == text_section) 4044 sc = sc_Text; 4045 else if (seg == data_section) 4046 sc = sc_Data; 4047 else if (strcmp (segname, ".rdata") == 0 4048 || strcmp (segname, ".rodata") == 0) 4049 sc = sc_RData; 4050 else if (strcmp (segname, ".sdata") == 0) 4051 sc = sc_SData; 4052 else if (seg == bss_section) 4053 sc = sc_Bss; 4054 else if (strcmp (segname, ".sbss") == 0) 4055 sc = sc_SBss; 4056 else if (seg == bfd_abs_section_ptr) 4057 sc = sc_Abs; 4058 else 4059 { 4060 /* This must be a user named section. 4061 This is not possible in ECOFF, but it 4062 is in ELF. */ 4063 sc = sc_Data; 4064 } 4065 4066 sym_ptr->ecoff_sym.asym.st = (int) st; 4067 sym_ptr->ecoff_sym.asym.sc = (int) sc; 4068 } 4069 4070 /* This is just an external symbol if it is 4071 outside a procedure and it has a type. 4072 FIXME: g++ will generate symbols which have 4073 different names in the debugging information 4074 than the actual symbol. Should we handle 4075 them here? */ 4076 if ((S_IS_EXTERNAL (as_sym) 4077 || S_IS_WEAK (as_sym) 4078 || ! S_IS_DEFINED (as_sym)) 4079 && sym_ptr->proc_ptr == (proc_t *) NULL 4080 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil 4081 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) 4082 local = 0; 4083 4084 /* This is just an external symbol if it is a 4085 common symbol. */ 4086 if (S_IS_COMMON (as_sym)) 4087 local = 0; 4088 4089 /* If an st_end symbol has an associated gas 4090 symbol, then it is a local label created for 4091 a .bend or .end directive. Stabs line 4092 numbers will have FAKE_LABEL_CHAR in the names. */ 4093 if (local 4094 && sym_ptr->ecoff_sym.asym.st != st_End 4095 && strchr (sym_ptr->name, FAKE_LABEL_CHAR) == 0) 4096 sym_ptr->ecoff_sym.asym.iss = 4097 add_string (&fil_ptr->strings, 4098 fil_ptr->str_hash, 4099 sym_ptr->name, 4100 (shash_t **) NULL); 4101 } 4102 4103 /* We now know the index of this symbol; fill in 4104 locations that have been waiting for that 4105 information. */ 4106 if (sym_ptr->begin_ptr != (localsym_t *) NULL) 4107 { 4108 localsym_t *begin_ptr; 4109 st_t begin_type; 4110 4111 know (local); 4112 begin_ptr = sym_ptr->begin_ptr; 4113 know (begin_ptr->sym_index != -1); 4114 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; 4115 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) 4116 sym_ptr->ecoff_sym.asym.iss = 4117 begin_ptr->ecoff_sym.asym.iss; 4118 4119 begin_type = (st_t) begin_ptr->ecoff_sym.asym.st; 4120 if (begin_type == st_File 4121 || begin_type == st_Block) 4122 { 4123 begin_ptr->ecoff_sym.asym.index = 4124 isym - ifilesym + 1; 4125 (*swap_sym_out) (stdoutput, 4126 &begin_ptr->ecoff_sym.asym, 4127 (*buf 4128 + offset 4129 + (begin_ptr->sym_index 4130 * external_sym_size))); 4131 } 4132 else 4133 { 4134 know (begin_ptr->index_ptr != (aux_t *) NULL); 4135 begin_ptr->index_ptr->data.isym = 4136 isym - ifilesym + 1; 4137 } 4138 4139 /* The value of the symbol marking the end of a 4140 procedure is the size of the procedure. The 4141 value of the symbol marking the end of a 4142 block is the offset from the start of the 4143 procedure to the block. */ 4144 if (begin_type == st_Proc 4145 || begin_type == st_StaticProc) 4146 { 4147 know (as_sym != (symbolS *) NULL); 4148 know (begin_ptr->as_sym != (symbolS *) NULL); 4149 if (S_GET_SEGMENT (as_sym) 4150 != S_GET_SEGMENT (begin_ptr->as_sym)) 4151 as_warn (_(".begin/.bend in different segments")); 4152 sym_ptr->ecoff_sym.asym.value = 4153 (S_GET_VALUE (as_sym) 4154 - S_GET_VALUE (begin_ptr->as_sym)); 4155 4156 /* If the size is odd, this is probably a 4157 mips16 function; force it to be even. */ 4158 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0) 4159 ++sym_ptr->ecoff_sym.asym.value; 4160 4161#ifdef S_SET_SIZE 4162 S_SET_SIZE (begin_ptr->as_sym, 4163 sym_ptr->ecoff_sym.asym.value); 4164#endif 4165 } 4166 else if (begin_type == st_Block 4167 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) 4168 { 4169 symbolS *begin_sym; 4170 4171 know (as_sym != (symbolS *) NULL); 4172 know (sym_ptr->proc_ptr != (proc_t *) NULL); 4173 begin_sym = sym_ptr->proc_ptr->sym->as_sym; 4174 if (S_GET_SEGMENT (as_sym) 4175 != S_GET_SEGMENT (begin_sym)) 4176 as_warn (_(".begin/.bend in different segments")); 4177 sym_ptr->ecoff_sym.asym.value = 4178 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); 4179 } 4180 } 4181 4182 for (f = sym_ptr->forward_ref; 4183 f != (forward_t *) NULL; 4184 f = f->next) 4185 { 4186 know (local); 4187 f->ifd_ptr->data.isym = fil_ptr->file_index; 4188 f->index_ptr->data.rndx.index = isym - ifilesym; 4189 } 4190 4191 if (local) 4192 { 4193 if ((bfd_size_type)(*bufend - sym_out) < external_sym_size) 4194 sym_out = ecoff_add_bytes (buf, bufend, 4195 sym_out, 4196 external_sym_size); 4197 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, 4198 sym_out); 4199 sym_out += external_sym_size; 4200 4201 sym_ptr->sym_index = isym; 4202 4203 if (sym_ptr->proc_ptr != (proc_t *) NULL 4204 && sym_ptr->proc_ptr->sym == sym_ptr) 4205 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; 4206 4207 ++isym; 4208 } 4209 4210 /* Record the local symbol index and file number in 4211 case this is an external symbol. Note that this 4212 destroys the asym.index field. */ 4213 if (as_sym != (symbolS *) NULL 4214 && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr) 4215 { 4216 if ((sym_ptr->ecoff_sym.asym.st == st_Proc 4217 || sym_ptr->ecoff_sym.asym.st == st_StaticProc) 4218 && local) 4219 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; 4220 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; 4221 4222 /* Don't try to merge an FDR which has an 4223 external symbol attached to it. */ 4224 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym)) 4225 fil_ptr->fdr.fMerge = 0; 4226 } 4227 } 4228 } 4229 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; 4230 } 4231 } 4232 4233 return offset + isym * external_sym_size; 4234} 4235 4236/* Swap out the procedure information. */ 4237 4238static unsigned long 4239ecoff_build_procs (const struct ecoff_debug_swap *backend, 4240 char **buf, 4241 char **bufend, 4242 unsigned long offset) 4243{ 4244 const bfd_size_type external_pdr_size = backend->external_pdr_size; 4245 void (* const swap_pdr_out) (bfd *, const PDR *, void *) 4246 = backend->swap_pdr_out; 4247 char *pdr_out; 4248 long iproc; 4249 vlinks_t *file_link; 4250 4251 pdr_out = *buf + offset; 4252 4253 iproc = 0; 4254 4255 /* The procedures are stored by file. */ 4256 for (file_link = file_desc.first; 4257 file_link != (vlinks_t *) NULL; 4258 file_link = file_link->next) 4259 { 4260 int fil_cnt; 4261 efdr_t *fil_ptr; 4262 efdr_t *fil_end; 4263 4264 if (file_link->next == (vlinks_t *) NULL) 4265 fil_cnt = file_desc.objects_last_page; 4266 else 4267 fil_cnt = file_desc.objects_per_page; 4268 fil_ptr = file_link->datum->file; 4269 fil_end = fil_ptr + fil_cnt; 4270 for (; fil_ptr < fil_end; fil_ptr++) 4271 { 4272 vlinks_t *proc_link; 4273 int first; 4274 4275 fil_ptr->fdr.ipdFirst = iproc; 4276 first = 1; 4277 for (proc_link = fil_ptr->procs.first; 4278 proc_link != (vlinks_t *) NULL; 4279 proc_link = proc_link->next) 4280 { 4281 int prc_cnt; 4282 proc_t *proc_ptr; 4283 proc_t *proc_end; 4284 4285 if (proc_link->next == (vlinks_t *) NULL) 4286 prc_cnt = fil_ptr->procs.objects_last_page; 4287 else 4288 prc_cnt = fil_ptr->procs.objects_per_page; 4289 proc_ptr = proc_link->datum->proc; 4290 proc_end = proc_ptr + prc_cnt; 4291 for (; proc_ptr < proc_end; proc_ptr++) 4292 { 4293 symbolS *adr_sym; 4294 unsigned long adr; 4295 4296 adr_sym = proc_ptr->sym->as_sym; 4297 adr = (S_GET_VALUE (adr_sym) 4298 + bfd_section_vma (S_GET_SEGMENT (adr_sym))); 4299 if (first) 4300 { 4301 /* This code used to force the adr of the very 4302 first fdr to be 0. However, the native tools 4303 don't do that, and I can't remember why it 4304 used to work that way, so I took it out. */ 4305 fil_ptr->fdr.adr = adr; 4306 first = 0; 4307 } 4308 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; 4309 if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size) 4310 pdr_out = ecoff_add_bytes (buf, bufend, 4311 pdr_out, 4312 external_pdr_size); 4313 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); 4314 pdr_out += external_pdr_size; 4315 ++iproc; 4316 } 4317 } 4318 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; 4319 } 4320 } 4321 4322 return offset + iproc * external_pdr_size; 4323} 4324 4325/* Swap out the aux information. */ 4326 4327static unsigned long 4328ecoff_build_aux (const struct ecoff_debug_swap *backend, 4329 char **buf, 4330 char **bufend, 4331 unsigned long offset) 4332{ 4333 int bigendian; 4334 union aux_ext *aux_out; 4335 long iaux; 4336 vlinks_t *file_link; 4337 4338 bigendian = bfd_big_endian (stdoutput); 4339 4340 aux_out = (union aux_ext *) (*buf + offset); 4341 4342 iaux = 0; 4343 4344 /* The aux entries are stored by file. */ 4345 for (file_link = file_desc.first; 4346 file_link != (vlinks_t *) NULL; 4347 file_link = file_link->next) 4348 { 4349 int fil_cnt; 4350 efdr_t *fil_ptr; 4351 efdr_t *fil_end; 4352 4353 if (file_link->next == (vlinks_t *) NULL) 4354 fil_cnt = file_desc.objects_last_page; 4355 else 4356 fil_cnt = file_desc.objects_per_page; 4357 fil_ptr = file_link->datum->file; 4358 fil_end = fil_ptr + fil_cnt; 4359 for (; fil_ptr < fil_end; fil_ptr++) 4360 { 4361 vlinks_t *aux_link; 4362 4363 fil_ptr->fdr.fBigendian = bigendian; 4364 fil_ptr->fdr.iauxBase = iaux; 4365 for (aux_link = fil_ptr->aux_syms.first; 4366 aux_link != (vlinks_t *) NULL; 4367 aux_link = aux_link->next) 4368 { 4369 int aux_cnt; 4370 aux_t *aux_ptr; 4371 aux_t *aux_end; 4372 4373 if (aux_link->next == (vlinks_t *) NULL) 4374 aux_cnt = fil_ptr->aux_syms.objects_last_page; 4375 else 4376 aux_cnt = fil_ptr->aux_syms.objects_per_page; 4377 aux_ptr = aux_link->datum->aux; 4378 aux_end = aux_ptr + aux_cnt; 4379 for (; aux_ptr < aux_end; aux_ptr++) 4380 { 4381 if ((unsigned long) (*bufend - (char *) aux_out) 4382 < sizeof (union aux_ext)) 4383 aux_out = ((union aux_ext *) 4384 ecoff_add_bytes (buf, bufend, 4385 (char *) aux_out, 4386 sizeof (union aux_ext))); 4387 switch (aux_ptr->type) 4388 { 4389 case aux_tir: 4390 (*backend->swap_tir_out) (bigendian, 4391 &aux_ptr->data.ti, 4392 &aux_out->a_ti); 4393 break; 4394 case aux_rndx: 4395 (*backend->swap_rndx_out) (bigendian, 4396 &aux_ptr->data.rndx, 4397 &aux_out->a_rndx); 4398 break; 4399 case aux_dnLow: 4400 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, 4401 aux_out); 4402 break; 4403 case aux_dnHigh: 4404 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, 4405 aux_out); 4406 break; 4407 case aux_isym: 4408 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, 4409 aux_out); 4410 break; 4411 case aux_iss: 4412 AUX_PUT_ISS (bigendian, aux_ptr->data.iss, 4413 aux_out); 4414 break; 4415 case aux_width: 4416 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, 4417 aux_out); 4418 break; 4419 case aux_count: 4420 AUX_PUT_COUNT (bigendian, aux_ptr->data.count, 4421 aux_out); 4422 break; 4423 } 4424 4425 ++aux_out; 4426 ++iaux; 4427 } 4428 } 4429 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; 4430 } 4431 } 4432 4433 return ecoff_padding_adjust (backend, buf, bufend, 4434 offset + iaux * sizeof (union aux_ext), 4435 (char **) NULL); 4436} 4437 4438/* Copy out the strings from a varray_t. This returns the number of 4439 bytes copied, rather than the new offset. */ 4440 4441static unsigned long 4442ecoff_build_strings (char **buf, 4443 char **bufend, 4444 unsigned long offset, 4445 varray_t *vp) 4446{ 4447 unsigned long istr; 4448 char *str_out; 4449 vlinks_t *str_link; 4450 4451 str_out = *buf + offset; 4452 4453 istr = 0; 4454 4455 for (str_link = vp->first; 4456 str_link != (vlinks_t *) NULL; 4457 str_link = str_link->next) 4458 { 4459 unsigned long str_cnt; 4460 4461 if (str_link->next == (vlinks_t *) NULL) 4462 str_cnt = vp->objects_last_page; 4463 else 4464 str_cnt = vp->objects_per_page; 4465 4466 if ((unsigned long)(*bufend - str_out) < str_cnt) 4467 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); 4468 4469 memcpy (str_out, str_link->datum->byte, str_cnt); 4470 str_out += str_cnt; 4471 istr += str_cnt; 4472 } 4473 4474 return istr; 4475} 4476 4477/* Dump out the local strings. */ 4478 4479static unsigned long 4480ecoff_build_ss (const struct ecoff_debug_swap *backend, 4481 char **buf, 4482 char **bufend, 4483 unsigned long offset) 4484{ 4485 long iss; 4486 vlinks_t *file_link; 4487 4488 iss = 0; 4489 4490 for (file_link = file_desc.first; 4491 file_link != (vlinks_t *) NULL; 4492 file_link = file_link->next) 4493 { 4494 int fil_cnt; 4495 efdr_t *fil_ptr; 4496 efdr_t *fil_end; 4497 4498 if (file_link->next == (vlinks_t *) NULL) 4499 fil_cnt = file_desc.objects_last_page; 4500 else 4501 fil_cnt = file_desc.objects_per_page; 4502 fil_ptr = file_link->datum->file; 4503 fil_end = fil_ptr + fil_cnt; 4504 for (; fil_ptr < fil_end; fil_ptr++) 4505 { 4506 long ss_cnt; 4507 4508 fil_ptr->fdr.issBase = iss; 4509 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, 4510 &fil_ptr->strings); 4511 fil_ptr->fdr.cbSs = ss_cnt; 4512 iss += ss_cnt; 4513 } 4514 } 4515 4516 return ecoff_padding_adjust (backend, buf, bufend, offset + iss, 4517 (char **) NULL); 4518} 4519 4520/* Swap out the file descriptors. */ 4521 4522static unsigned long 4523ecoff_build_fdr (const struct ecoff_debug_swap *backend, 4524 char **buf, 4525 char **bufend, 4526 unsigned long offset) 4527{ 4528 const bfd_size_type external_fdr_size = backend->external_fdr_size; 4529 void (* const swap_fdr_out) (bfd *, const FDR *, void *) 4530 = backend->swap_fdr_out; 4531 long ifile; 4532 char *fdr_out; 4533 vlinks_t *file_link; 4534 4535 ifile = 0; 4536 4537 fdr_out = *buf + offset; 4538 4539 for (file_link = file_desc.first; 4540 file_link != (vlinks_t *) NULL; 4541 file_link = file_link->next) 4542 { 4543 int fil_cnt; 4544 efdr_t *fil_ptr; 4545 efdr_t *fil_end; 4546 4547 if (file_link->next == (vlinks_t *) NULL) 4548 fil_cnt = file_desc.objects_last_page; 4549 else 4550 fil_cnt = file_desc.objects_per_page; 4551 fil_ptr = file_link->datum->file; 4552 fil_end = fil_ptr + fil_cnt; 4553 for (; fil_ptr < fil_end; fil_ptr++) 4554 { 4555 if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size) 4556 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, 4557 external_fdr_size); 4558 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); 4559 fdr_out += external_fdr_size; 4560 ++ifile; 4561 } 4562 } 4563 4564 return offset + ifile * external_fdr_size; 4565} 4566 4567/* Set up the external symbols. These are supposed to be handled by 4568 the backend. This routine just gets the right information and 4569 calls a backend function to deal with it. */ 4570 4571static void 4572ecoff_setup_ext (void) 4573{ 4574 symbolS *sym; 4575 4576 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) 4577 { 4578 if (symbol_get_obj (sym)->ecoff_symbol == NULL) 4579 continue; 4580 4581 /* If this is a local symbol, then force the fields to zero. */ 4582 if (! S_IS_EXTERNAL (sym) 4583 && ! S_IS_WEAK (sym) 4584 && S_IS_DEFINED (sym)) 4585 { 4586 struct localsym *lsym; 4587 4588 lsym = symbol_get_obj (sym)->ecoff_symbol; 4589 lsym->ecoff_sym.asym.value = 0; 4590 lsym->ecoff_sym.asym.st = (int) st_Nil; 4591 lsym->ecoff_sym.asym.sc = (int) sc_Nil; 4592 lsym->ecoff_sym.asym.index = indexNil; 4593 } 4594 4595 obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym); 4596 } 4597} 4598 4599/* Build the ECOFF debugging information. */ 4600 4601unsigned long 4602ecoff_build_debug (HDRR *hdr, 4603 char **bufp, 4604 const struct ecoff_debug_swap *backend) 4605{ 4606 const bfd_size_type external_pdr_size = backend->external_pdr_size; 4607 tag_t *ptag; 4608 tag_t *ptag_next; 4609 efdr_t *fil_ptr; 4610 int end_warning; 4611 efdr_t *hold_file_ptr; 4612 proc_t *hold_proc_ptr; 4613 symbolS *sym; 4614 char *buf; 4615 char *bufend; 4616 unsigned long offset; 4617 4618 /* Make sure we have a file. */ 4619 if (first_file == (efdr_t *) NULL) 4620 add_file ((const char *) NULL, 0, 1); 4621 4622 /* Handle any top level tags. */ 4623 for (ptag = top_tag_head->first_tag; 4624 ptag != (tag_t *) NULL; 4625 ptag = ptag_next) 4626 { 4627 if (ptag->forward_ref != (forward_t *) NULL) 4628 add_unknown_tag (ptag); 4629 4630 ptag_next = ptag->same_block; 4631 ptag->hash_ptr->tag_ptr = ptag->same_name; 4632 free_tag (ptag); 4633 } 4634 4635 free_thead (top_tag_head); 4636 4637 /* Look through the symbols. Add debugging information for each 4638 symbol that has not already received it. */ 4639 hold_file_ptr = cur_file_ptr; 4640 hold_proc_ptr = cur_proc_ptr; 4641 cur_proc_ptr = (proc_t *) NULL; 4642 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) 4643 { 4644 if (symbol_get_obj (sym)->ecoff_symbol != NULL 4645 || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL 4646 || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0) 4647 continue; 4648 4649 cur_file_ptr = symbol_get_obj (sym)->ecoff_file; 4650 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, 4651 (bfd_vma) 0, S_GET_VALUE (sym), indexNil); 4652 } 4653 cur_proc_ptr = hold_proc_ptr; 4654 cur_file_ptr = hold_file_ptr; 4655 4656 /* Output an ending symbol for all the files. We have to do this 4657 here for the last file, so we may as well do it for all of the 4658 files. */ 4659 end_warning = 0; 4660 for (fil_ptr = first_file; 4661 fil_ptr != (efdr_t *) NULL; 4662 fil_ptr = fil_ptr->next_file) 4663 { 4664 cur_file_ptr = fil_ptr; 4665 while (cur_file_ptr->cur_scope != (scope_t *) NULL 4666 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL) 4667 { 4668 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; 4669 if (! end_warning && ! cur_file_ptr->fake) 4670 { 4671 as_warn (_("missing .end or .bend at end of file")); 4672 end_warning = 1; 4673 } 4674 } 4675 if (cur_file_ptr->cur_scope != (scope_t *) NULL) 4676 (void) add_ecoff_symbol ((const char *) NULL, 4677 st_End, sc_Text, 4678 (symbolS *) NULL, 4679 (bfd_vma) 0, 4680 (symint_t) 0, 4681 (symint_t) 0); 4682 } 4683 4684 /* Build the symbolic information. */ 4685 offset = 0; 4686 buf = XNEWVEC (char, PAGE_SIZE); 4687 bufend = buf + PAGE_SIZE; 4688 4689 /* Build the line number information. */ 4690 hdr->cbLineOffset = offset; 4691 offset = ecoff_build_lineno (backend, &buf, &bufend, offset, 4692 &hdr->ilineMax); 4693 hdr->cbLine = offset - hdr->cbLineOffset; 4694 4695 /* We don't use dense numbers at all. */ 4696 hdr->idnMax = 0; 4697 hdr->cbDnOffset = 0; 4698 4699 /* We can't build the PDR table until we have built the symbols, 4700 because a PDR contains a symbol index. However, we set aside 4701 space at this point. */ 4702 hdr->ipdMax = proc_cnt; 4703 hdr->cbPdOffset = offset; 4704 if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size) 4705 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, 4706 proc_cnt * external_pdr_size); 4707 offset += proc_cnt * external_pdr_size; 4708 4709 /* Build the local symbols. */ 4710 hdr->cbSymOffset = offset; 4711 offset = ecoff_build_symbols (backend, &buf, &bufend, offset); 4712 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; 4713 4714 /* Building the symbols initializes the symbol index in the PDR's. 4715 Now we can swap out the PDR's. */ 4716 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); 4717 4718 /* We don't use optimization symbols. */ 4719 hdr->ioptMax = 0; 4720 hdr->cbOptOffset = 0; 4721 4722 /* Swap out the auxiliary type information. */ 4723 hdr->cbAuxOffset = offset; 4724 offset = ecoff_build_aux (backend, &buf, &bufend, offset); 4725 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); 4726 4727 /* Copy out the local strings. */ 4728 hdr->cbSsOffset = offset; 4729 offset = ecoff_build_ss (backend, &buf, &bufend, offset); 4730 hdr->issMax = offset - hdr->cbSsOffset; 4731 4732 /* We don't use relative file descriptors. */ 4733 hdr->crfd = 0; 4734 hdr->cbRfdOffset = 0; 4735 4736 /* Swap out the file descriptors. */ 4737 hdr->cbFdOffset = offset; 4738 offset = ecoff_build_fdr (backend, &buf, &bufend, offset); 4739 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; 4740 4741 /* Set up the external symbols, which are handled by the BFD back 4742 end. */ 4743 hdr->issExtMax = 0; 4744 hdr->cbSsExtOffset = 0; 4745 hdr->iextMax = 0; 4746 hdr->cbExtOffset = 0; 4747 ecoff_setup_ext (); 4748 4749 know ((offset & (backend->debug_align - 1)) == 0); 4750 4751 /* FIXME: This value should be determined from the .verstamp directive, 4752 with reasonable defaults in config files. */ 4753#ifdef TC_ALPHA 4754 hdr->vstamp = 0x030b; 4755#else 4756 hdr->vstamp = 0x020b; 4757#endif 4758 4759 *bufp = buf; 4760 return offset; 4761} 4762 4763/* Allocate a cluster of pages. */ 4764 4765#ifndef MALLOC_CHECK 4766 4767static page_type * 4768allocate_cluster (unsigned long npages) 4769{ 4770 page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE); 4771 4772#ifdef ECOFF_DEBUG 4773 if (debug > 3) 4774 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); 4775#endif 4776 4777 memset (value, 0, npages * PAGE_USIZE); 4778 4779 return value; 4780} 4781 4782static page_type *cluster_ptr = NULL; 4783static unsigned long pages_left = 0; 4784 4785#endif /* MALLOC_CHECK */ 4786 4787/* Allocate one page (which is initialized to 0). */ 4788 4789static page_type * 4790allocate_page (void) 4791{ 4792#ifndef MALLOC_CHECK 4793 4794 if (pages_left == 0) 4795 { 4796 pages_left = MAX_CLUSTER_PAGES; 4797 cluster_ptr = allocate_cluster (pages_left); 4798 } 4799 4800 pages_left--; 4801 return cluster_ptr++; 4802 4803#else /* MALLOC_CHECK */ 4804 4805 page_type *ptr; 4806 4807 ptr = xmalloc (PAGE_USIZE); 4808 memset (ptr, 0, PAGE_USIZE); 4809 return ptr; 4810 4811#endif /* MALLOC_CHECK */ 4812} 4813 4814/* Allocate scoping information. */ 4815 4816static scope_t * 4817allocate_scope (void) 4818{ 4819 scope_t *ptr; 4820 static scope_t initial_scope; 4821 4822#ifndef MALLOC_CHECK 4823 4824 ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope; 4825 if (ptr != (scope_t *) NULL) 4826 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free; 4827 else 4828 { 4829 int unallocated = alloc_counts[(int) alloc_type_scope].unallocated; 4830 page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page; 4831 4832 if (unallocated == 0) 4833 { 4834 unallocated = PAGE_SIZE / sizeof (scope_t); 4835 alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page (); 4836 alloc_counts[(int) alloc_type_scope].total_pages++; 4837 } 4838 4839 ptr = &cur_page->scope[--unallocated]; 4840 alloc_counts[(int) alloc_type_scope].unallocated = unallocated; 4841 } 4842 4843#else 4844 4845 ptr = XNEW (scope_t); 4846 4847#endif 4848 4849 alloc_counts[(int) alloc_type_scope].total_alloc++; 4850 *ptr = initial_scope; 4851 return ptr; 4852} 4853 4854/* Free scoping information. */ 4855 4856static void 4857free_scope (scope_t *ptr) 4858{ 4859 alloc_counts[(int) alloc_type_scope].total_free++; 4860 4861#ifndef MALLOC_CHECK 4862 ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope; 4863 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr; 4864#else 4865 free ((void *) ptr); 4866#endif 4867} 4868 4869/* Allocate links for pages in a virtual array. */ 4870 4871static vlinks_t * 4872allocate_vlinks (void) 4873{ 4874 vlinks_t *ptr; 4875 static vlinks_t initial_vlinks; 4876 4877#ifndef MALLOC_CHECK 4878 4879 int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated; 4880 page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page; 4881 4882 if (unallocated == 0) 4883 { 4884 unallocated = PAGE_SIZE / sizeof (vlinks_t); 4885 alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page (); 4886 alloc_counts[(int) alloc_type_vlinks].total_pages++; 4887 } 4888 4889 ptr = &cur_page->vlinks[--unallocated]; 4890 alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated; 4891 4892#else 4893 4894 ptr = XNEW (vlinks_t); 4895 4896#endif 4897 4898 alloc_counts[(int) alloc_type_vlinks].total_alloc++; 4899 *ptr = initial_vlinks; 4900 return ptr; 4901} 4902 4903/* Allocate string hash buckets. */ 4904 4905static shash_t * 4906allocate_shash (void) 4907{ 4908 shash_t *ptr; 4909 static shash_t initial_shash; 4910 4911#ifndef MALLOC_CHECK 4912 4913 int unallocated = alloc_counts[(int) alloc_type_shash].unallocated; 4914 page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page; 4915 4916 if (unallocated == 0) 4917 { 4918 unallocated = PAGE_SIZE / sizeof (shash_t); 4919 alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page (); 4920 alloc_counts[(int) alloc_type_shash].total_pages++; 4921 } 4922 4923 ptr = &cur_page->shash[--unallocated]; 4924 alloc_counts[(int) alloc_type_shash].unallocated = unallocated; 4925 4926#else 4927 4928 ptr = XNEW (shash_t); 4929 4930#endif 4931 4932 alloc_counts[(int) alloc_type_shash].total_alloc++; 4933 *ptr = initial_shash; 4934 return ptr; 4935} 4936 4937/* Allocate type hash buckets. */ 4938 4939static thash_t * 4940allocate_thash (void) 4941{ 4942 thash_t *ptr; 4943 static thash_t initial_thash; 4944 4945#ifndef MALLOC_CHECK 4946 4947 int unallocated = alloc_counts[(int) alloc_type_thash].unallocated; 4948 page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page; 4949 4950 if (unallocated == 0) 4951 { 4952 unallocated = PAGE_SIZE / sizeof (thash_t); 4953 alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page (); 4954 alloc_counts[(int) alloc_type_thash].total_pages++; 4955 } 4956 4957 ptr = &cur_page->thash[--unallocated]; 4958 alloc_counts[(int) alloc_type_thash].unallocated = unallocated; 4959 4960#else 4961 4962 ptr = XNEW (thash_t); 4963 4964#endif 4965 4966 alloc_counts[(int) alloc_type_thash].total_alloc++; 4967 *ptr = initial_thash; 4968 return ptr; 4969} 4970 4971/* Allocate structure, union, or enum tag information. */ 4972 4973static tag_t * 4974allocate_tag (void) 4975{ 4976 tag_t *ptr; 4977 static tag_t initial_tag; 4978 4979#ifndef MALLOC_CHECK 4980 4981 ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag; 4982 if (ptr != (tag_t *) NULL) 4983 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free; 4984 else 4985 { 4986 int unallocated = alloc_counts[(int) alloc_type_tag].unallocated; 4987 page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page; 4988 4989 if (unallocated == 0) 4990 { 4991 unallocated = PAGE_SIZE / sizeof (tag_t); 4992 alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page (); 4993 alloc_counts[(int) alloc_type_tag].total_pages++; 4994 } 4995 4996 ptr = &cur_page->tag[--unallocated]; 4997 alloc_counts[(int) alloc_type_tag].unallocated = unallocated; 4998 } 4999 5000#else 5001 5002 ptr = XNEW (tag_t); 5003 5004#endif 5005 5006 alloc_counts[(int) alloc_type_tag].total_alloc++; 5007 *ptr = initial_tag; 5008 return ptr; 5009} 5010 5011/* Free scoping information. */ 5012 5013static void 5014free_tag (tag_t *ptr) 5015{ 5016 alloc_counts[(int) alloc_type_tag].total_free++; 5017 5018#ifndef MALLOC_CHECK 5019 ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag; 5020 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr; 5021#else 5022 free ((PTR_T) ptr); 5023#endif 5024} 5025 5026/* Allocate forward reference to a yet unknown tag. */ 5027 5028static forward_t * 5029allocate_forward (void) 5030{ 5031 forward_t *ptr; 5032 static forward_t initial_forward; 5033 5034#ifndef MALLOC_CHECK 5035 5036 int unallocated = alloc_counts[(int) alloc_type_forward].unallocated; 5037 page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page; 5038 5039 if (unallocated == 0) 5040 { 5041 unallocated = PAGE_SIZE / sizeof (forward_t); 5042 alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page (); 5043 alloc_counts[(int) alloc_type_forward].total_pages++; 5044 } 5045 5046 ptr = &cur_page->forward[--unallocated]; 5047 alloc_counts[(int) alloc_type_forward].unallocated = unallocated; 5048 5049#else 5050 5051 ptr = XNEW (forward_t); 5052 5053#endif 5054 5055 alloc_counts[(int) alloc_type_forward].total_alloc++; 5056 *ptr = initial_forward; 5057 return ptr; 5058} 5059 5060/* Allocate head of type hash list. */ 5061 5062static thead_t * 5063allocate_thead (void) 5064{ 5065 thead_t *ptr; 5066 static thead_t initial_thead; 5067 5068#ifndef MALLOC_CHECK 5069 5070 ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead; 5071 if (ptr != (thead_t *) NULL) 5072 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free; 5073 else 5074 { 5075 int unallocated = alloc_counts[(int) alloc_type_thead].unallocated; 5076 page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page; 5077 5078 if (unallocated == 0) 5079 { 5080 unallocated = PAGE_SIZE / sizeof (thead_t); 5081 alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page (); 5082 alloc_counts[(int) alloc_type_thead].total_pages++; 5083 } 5084 5085 ptr = &cur_page->thead[--unallocated]; 5086 alloc_counts[(int) alloc_type_thead].unallocated = unallocated; 5087 } 5088 5089#else 5090 5091 ptr = XNEW (thead_t); 5092 5093#endif 5094 5095 alloc_counts[(int) alloc_type_thead].total_alloc++; 5096 *ptr = initial_thead; 5097 return ptr; 5098} 5099 5100/* Free scoping information. */ 5101 5102static void 5103free_thead (thead_t *ptr) 5104{ 5105 alloc_counts[(int) alloc_type_thead].total_free++; 5106 5107#ifndef MALLOC_CHECK 5108 ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead; 5109 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr; 5110#else 5111 free ((PTR_T) ptr); 5112#endif 5113} 5114 5115static lineno_list_t * 5116allocate_lineno_list (void) 5117{ 5118 lineno_list_t *ptr; 5119 static lineno_list_t initial_lineno_list; 5120 5121#ifndef MALLOC_CHECK 5122 5123 int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated; 5124 page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page; 5125 5126 if (unallocated == 0) 5127 { 5128 unallocated = PAGE_SIZE / sizeof (lineno_list_t); 5129 alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page (); 5130 alloc_counts[(int) alloc_type_lineno].total_pages++; 5131 } 5132 5133 ptr = &cur_page->lineno[--unallocated]; 5134 alloc_counts[(int) alloc_type_lineno].unallocated = unallocated; 5135 5136#else 5137 5138 ptr = XNEW (lineno_list_t); 5139 5140#endif 5141 5142 alloc_counts[(int) alloc_type_lineno].total_alloc++; 5143 *ptr = initial_lineno_list; 5144 return ptr; 5145} 5146 5147void 5148ecoff_set_gp_prolog_size (int sz) 5149{ 5150 if (cur_proc_ptr == 0) 5151 return; 5152 5153 cur_proc_ptr->pdr.gp_prologue = sz; 5154 if (cur_proc_ptr->pdr.gp_prologue != sz) 5155 { 5156 as_warn (_("GP prologue size exceeds field size, using 0 instead")); 5157 cur_proc_ptr->pdr.gp_prologue = 0; 5158 } 5159 5160 cur_proc_ptr->pdr.gp_used = 1; 5161} 5162 5163int 5164ecoff_no_current_file (void) 5165{ 5166 return cur_file_ptr == (efdr_t *) NULL; 5167} 5168 5169void 5170ecoff_generate_asm_lineno (void) 5171{ 5172 unsigned int lineno; 5173 const char *filename; 5174 lineno_list_t *list; 5175 5176 filename = as_where (&lineno); 5177 5178 if (current_stabs_filename == (char *) NULL 5179 || filename_cmp (current_stabs_filename, filename)) 5180 add_file (filename, 0, 1); 5181 5182 list = allocate_lineno_list (); 5183 5184 list->next = (lineno_list_t *) NULL; 5185 list->file = cur_file_ptr; 5186 list->proc = cur_proc_ptr; 5187 list->frag = frag_now; 5188 list->paddr = frag_now_fix (); 5189 list->lineno = lineno; 5190 5191 /* We don't want to merge files which have line numbers. */ 5192 cur_file_ptr->fdr.fMerge = 0; 5193 5194 /* A .loc directive will sometimes appear before a .ent directive, 5195 which means that cur_proc_ptr will be NULL here. Arrange to 5196 patch this up. */ 5197 if (cur_proc_ptr == (proc_t *) NULL) 5198 { 5199 lineno_list_t **pl; 5200 5201 pl = &noproc_lineno; 5202 while (*pl != (lineno_list_t *) NULL) 5203 pl = &(*pl)->next; 5204 *pl = list; 5205 } 5206 else 5207 { 5208 last_lineno = list; 5209 *last_lineno_ptr = list; 5210 last_lineno_ptr = &list->next; 5211 } 5212} 5213 5214#else 5215 5216void 5217ecoff_generate_asm_lineno (void) 5218{ 5219} 5220 5221#endif /* ECOFF_DEBUGGING */ 5222