mips-tfile.c revision 90075
1/* Update the symbol table (the .T file) in a MIPS object to 2 contain debugging information specified by the GNU compiler 3 in the form of comments (the mips assembler does not support 4 assembly access to debug information). 5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001 6 Free Software Foundation, Inc. 7 Contributed by Michael Meissner (meissner@cygnus.com). 8 9This file is part of GCC. 10 11GCC is free software; you can redistribute it and/or modify it under 12the terms of the GNU General Public License as published by the Free 13Software Foundation; either version 2, or (at your option) any later 14version. 15 16GCC is distributed in the hope that it will be useful, but WITHOUT ANY 17WARRANTY; without even the implied warranty of MERCHANTABILITY or 18FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19for more details. 20 21You should have received a copy of the GNU General Public License 22along with GCC; see the file COPYING. If not, write to the Free 23Software Foundation, 59 Temple Place - Suite 330, Boston, MA 2402111-1307, USA. */ 25 26 27/* Here is a brief description of the MIPS ECOFF symbol table. The 28 MIPS symbol table has the following pieces: 29 30 Symbolic Header 31 | 32 +-- Auxiliary Symbols 33 | 34 +-- Dense number table 35 | 36 +-- Optimizer Symbols 37 | 38 +-- External Strings 39 | 40 +-- External Symbols 41 | 42 +-- Relative file descriptors 43 | 44 +-- File table 45 | 46 +-- Procedure table 47 | 48 +-- Line number table 49 | 50 +-- Local Strings 51 | 52 +-- Local Symbols 53 54 The symbolic header points to each of the other tables, and also 55 contains the number of entries. It also contains a magic number 56 and MIPS compiler version number, such as 2.0. 57 58 The auxiliary table is a series of 32 bit integers, that are 59 referenced as needed from the local symbol table. Unlike standard 60 COFF, the aux. information does not follow the symbol that uses 61 it, but rather is a separate table. In theory, this would allow 62 the MIPS compilers to collapse duplicate aux. entries, but I've not 63 noticed this happening with the 1.31 compiler suite. The different 64 types of aux. entries are: 65 66 1) dnLow: Low bound on array dimension. 67 68 2) dnHigh: High bound on array dimension. 69 70 3) isym: Index to the local symbol which is the start of the 71 function for the end of function first aux. entry. 72 73 4) width: Width of structures and bitfields. 74 75 5) count: Count of ranges for variant part. 76 77 6) rndx: A relative index into the symbol table. The relative 78 index field has two parts: rfd which is a pointer into the 79 relative file index table or ST_RFDESCAPE which says the next 80 aux. entry is the file number, and index: which is the pointer 81 into the local symbol within a given file table. This is for 82 things like references to types defined in another file. 83 84 7) Type information: This is like the COFF type bits, except it 85 is 32 bits instead of 16; they still have room to add new 86 basic types; and they can handle more than 6 levels of array, 87 pointer, function, etc. Each type information field contains 88 the following structure members: 89 90 a) fBitfield: a bit that says this is a bitfield, and the 91 size in bits follows as the next aux. entry. 92 93 b) continued: a bit that says the next aux. entry is a 94 continuation of the current type information (in case 95 there are more than 6 levels of array/ptr/function). 96 97 c) bt: an integer containing the base type before adding 98 array, pointer, function, etc. qualifiers. The 99 current base types that I have documentation for are: 100 101 btNil -- undefined 102 btAdr -- address - integer same size as ptr 103 btChar -- character 104 btUChar -- unsigned character 105 btShort -- short 106 btUShort -- unsigned short 107 btInt -- int 108 btUInt -- unsigned int 109 btLong -- long 110 btULong -- unsigned long 111 btFloat -- float (real) 112 btDouble -- Double (real) 113 btStruct -- Structure (Record) 114 btUnion -- Union (variant) 115 btEnum -- Enumerated 116 btTypedef -- defined via a typedef isymRef 117 btRange -- subrange of int 118 btSet -- pascal sets 119 btComplex -- fortran complex 120 btDComplex -- fortran double complex 121 btIndirect -- forward or unnamed typedef 122 btFixedDec -- Fixed Decimal 123 btFloatDec -- Float Decimal 124 btString -- Varying Length Character String 125 btBit -- Aligned Bit String 126 btPicture -- Picture 127 btVoid -- Void (MIPS cc revision >= 2.00) 128 129 d) tq0 - tq5: type qualifier fields as needed. The 130 current type qualifier fields I have documentation for 131 are: 132 133 tqNil -- no more qualifiers 134 tqPtr -- pointer 135 tqProc -- procedure 136 tqArray -- array 137 tqFar -- 8086 far pointers 138 tqVol -- volatile 139 140 141 The dense number table is used in the front ends, and disappears by 142 the time the .o is created. 143 144 With the 1.31 compiler suite, the optimization symbols don't seem 145 to be used as far as I can tell. 146 147 The linker is the first entity that creates the relative file 148 descriptor table, and I believe it is used so that the individual 149 file table pointers don't have to be rewritten when the objects are 150 merged together into the program file. 151 152 Unlike COFF, the basic symbol & string tables are split into 153 external and local symbols/strings. The relocation information 154 only goes off of the external symbol table, and the debug 155 information only goes off of the internal symbol table. The 156 external symbols can have links to an appropriate file index and 157 symbol within the file to give it the appropriate type information. 158 Because of this, the external symbols are actually larger than the 159 internal symbols (to contain the link information), and contain the 160 local symbol structure as a member, though this member is not the 161 first member of the external symbol structure (!). I suspect this 162 split is to make strip easier to deal with. 163 164 Each file table has offsets for where the line numbers, local 165 strings, local symbols, and procedure table starts from within the 166 global tables, and the indexs are reset to 0 for each of those 167 tables for the file. 168 169 The procedure table contains the binary equivalents of the .ent 170 (start of the function address), .frame (what register is the 171 virtual frame pointer, constant offset from the register to obtain 172 the VFP, and what register holds the return address), .mask/.fmask 173 (bitmask of saved registers, and where the first register is stored 174 relative to the VFP) assembler directives. It also contains the 175 low and high bounds of the line numbers if debugging is turned on. 176 177 The line number table is a compressed form of the normal COFF line 178 table. Each line number entry is either 1 or 3 bytes long, and 179 contains a signed delta from the previous line, and an unsigned 180 count of the number of instructions this statement takes. 181 182 The local symbol table contains the following fields: 183 184 1) iss: index to the local string table giving the name of the 185 symbol. 186 187 2) value: value of the symbol (address, register number, etc.). 188 189 3) st: symbol type. The current symbol types are: 190 191 stNil -- Nuthin' special 192 stGlobal -- external symbol 193 stStatic -- static 194 stParam -- procedure argument 195 stLocal -- local variable 196 stLabel -- label 197 stProc -- External Procedure 198 stBlock -- beginning of block 199 stEnd -- end (of anything) 200 stMember -- member (of anything) 201 stTypedef -- type definition 202 stFile -- file name 203 stRegReloc -- register relocation 204 stForward -- forwarding address 205 stStaticProc -- Static procedure 206 stConstant -- const 207 208 4) sc: storage class. The current storage classes are: 209 210 scText -- text symbol 211 scData -- initialized data symbol 212 scBss -- un-initialized data symbol 213 scRegister -- value of symbol is register number 214 scAbs -- value of symbol is absolute 215 scUndefined -- who knows? 216 scCdbLocal -- variable's value is IN se->va.?? 217 scBits -- this is a bit field 218 scCdbSystem -- value is IN debugger's address space 219 scRegImage -- register value saved on stack 220 scInfo -- symbol contains debugger information 221 scUserStruct -- addr in struct user for current process 222 scSData -- load time only small data 223 scSBss -- load time only small common 224 scRData -- load time only read only data 225 scVar -- Var parameter (fortranpascal) 226 scCommon -- common variable 227 scSCommon -- small common 228 scVarRegister -- Var parameter in a register 229 scVariant -- Variant record 230 scSUndefined -- small undefined(external) data 231 scInit -- .init section symbol 232 233 5) index: pointer to a local symbol or aux. entry. 234 235 236 237 For the following program: 238 239 #include <stdio.h> 240 241 main(){ 242 printf("Hello World!\n"); 243 return 0; 244 } 245 246 Mips-tdump produces the following information: 247 248 Global file header: 249 magic number 0x162 250 # sections 2 251 timestamp 645311799, Wed Jun 13 17:16:39 1990 252 symbolic header offset 284 253 symbolic header size 96 254 optional header 56 255 flags 0x0 256 257 Symbolic header, magic number = 0x7009, vstamp = 1.31: 258 259 Info Offset Number Bytes 260 ==== ====== ====== ===== 261 262 Line numbers 380 4 4 [13] 263 Dense numbers 0 0 0 264 Procedures Tables 384 1 52 265 Local Symbols 436 16 192 266 Optimization Symbols 0 0 0 267 Auxiliary Symbols 628 39 156 268 Local Strings 784 80 80 269 External Strings 864 144 144 270 File Tables 1008 2 144 271 Relative Files 0 0 0 272 External Symbols 1152 20 320 273 274 File #0, "hello2.c" 275 276 Name index = 1 Readin = No 277 Merge = No Endian = LITTLE 278 Debug level = G2 Language = C 279 Adr = 0x00000000 280 281 Info Start Number Size Offset 282 ==== ===== ====== ==== ====== 283 Local strings 0 15 15 784 284 Local symbols 0 6 72 436 285 Line numbers 0 13 13 380 286 Optimization symbols 0 0 0 0 287 Procedures 0 1 52 384 288 Auxiliary symbols 0 14 56 628 289 Relative Files 0 0 0 0 290 291 There are 6 local symbols, starting at 436 292 293 Symbol# 0: "hello2.c" 294 End+1 symbol = 6 295 String index = 1 296 Storage class = Text Index = 6 297 Symbol type = File Value = 0 298 299 Symbol# 1: "main" 300 End+1 symbol = 5 301 Type = int 302 String index = 10 303 Storage class = Text Index = 12 304 Symbol type = Proc Value = 0 305 306 Symbol# 2: "" 307 End+1 symbol = 4 308 String index = 0 309 Storage class = Text Index = 4 310 Symbol type = Block Value = 8 311 312 Symbol# 3: "" 313 First symbol = 2 314 String index = 0 315 Storage class = Text Index = 2 316 Symbol type = End Value = 28 317 318 Symbol# 4: "main" 319 First symbol = 1 320 String index = 10 321 Storage class = Text Index = 1 322 Symbol type = End Value = 52 323 324 Symbol# 5: "hello2.c" 325 First symbol = 0 326 String index = 1 327 Storage class = Text Index = 0 328 Symbol type = End Value = 0 329 330 There are 14 auxiliary table entries, starting at 628. 331 332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] 335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] 336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] 338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] 339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] 340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] 341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] 342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] 343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] 344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] 345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] 346 347 There are 1 procedure descriptor entries, starting at 0. 348 349 Procedure descriptor 0: 350 Name index = 10 Name = "main" 351 .mask 0x80000000,-4 .fmask 0x00000000,0 352 .frame $29,24,$31 353 Opt. start = -1 Symbols start = 1 354 First line # = 3 Last line # = 6 355 Line Offset = 0 Address = 0x00000000 356 357 There are 4 bytes holding line numbers, starting at 380. 358 Line 3, delta 0, count 2 359 Line 4, delta 1, count 3 360 Line 5, delta 1, count 2 361 Line 6, delta 1, count 6 362 363 File #1, "/usr/include/stdio.h" 364 365 Name index = 1 Readin = No 366 Merge = Yes Endian = LITTLE 367 Debug level = G2 Language = C 368 Adr = 0x00000000 369 370 Info Start Number Size Offset 371 ==== ===== ====== ==== ====== 372 Local strings 15 65 65 799 373 Local symbols 6 10 120 508 374 Line numbers 0 0 0 380 375 Optimization symbols 0 0 0 0 376 Procedures 1 0 0 436 377 Auxiliary symbols 14 25 100 684 378 Relative Files 0 0 0 0 379 380 There are 10 local symbols, starting at 442 381 382 Symbol# 0: "/usr/include/stdio.h" 383 End+1 symbol = 10 384 String index = 1 385 Storage class = Text Index = 10 386 Symbol type = File Value = 0 387 388 Symbol# 1: "_iobuf" 389 End+1 symbol = 9 390 String index = 22 391 Storage class = Info Index = 9 392 Symbol type = Block Value = 20 393 394 Symbol# 2: "_cnt" 395 Type = int 396 String index = 29 397 Storage class = Info Index = 4 398 Symbol type = Member Value = 0 399 400 Symbol# 3: "_ptr" 401 Type = ptr to char 402 String index = 34 403 Storage class = Info Index = 15 404 Symbol type = Member Value = 32 405 406 Symbol# 4: "_base" 407 Type = ptr to char 408 String index = 39 409 Storage class = Info Index = 16 410 Symbol type = Member Value = 64 411 412 Symbol# 5: "_bufsiz" 413 Type = int 414 String index = 45 415 Storage class = Info Index = 4 416 Symbol type = Member Value = 96 417 418 Symbol# 6: "_flag" 419 Type = short 420 String index = 53 421 Storage class = Info Index = 3 422 Symbol type = Member Value = 128 423 424 Symbol# 7: "_file" 425 Type = char 426 String index = 59 427 Storage class = Info Index = 2 428 Symbol type = Member Value = 144 429 430 Symbol# 8: "" 431 First symbol = 1 432 String index = 0 433 Storage class = Info Index = 1 434 Symbol type = End Value = 0 435 436 Symbol# 9: "/usr/include/stdio.h" 437 First symbol = 0 438 String index = 1 439 Storage class = Text Index = 0 440 Symbol type = End Value = 0 441 442 There are 25 auxiliary table entries, starting at 642. 443 444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] 445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] 446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] 447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] 448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] 449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] 450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] 451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] 452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] 454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] 455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] 469 470 There are 0 procedure descriptor entries, starting at 1. 471 472 There are 20 external symbols, starting at 1152 473 474 Symbol# 0: "_iob" 475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } 476 String index = 0 Ifd = 1 477 Storage class = Nil Index = 17 478 Symbol type = Global Value = 60 479 480 Symbol# 1: "fopen" 481 String index = 5 Ifd = 1 482 Storage class = Nil Index = 1048575 483 Symbol type = Proc Value = 0 484 485 Symbol# 2: "fdopen" 486 String index = 11 Ifd = 1 487 Storage class = Nil Index = 1048575 488 Symbol type = Proc Value = 0 489 490 Symbol# 3: "freopen" 491 String index = 18 Ifd = 1 492 Storage class = Nil Index = 1048575 493 Symbol type = Proc Value = 0 494 495 Symbol# 4: "popen" 496 String index = 26 Ifd = 1 497 Storage class = Nil Index = 1048575 498 Symbol type = Proc Value = 0 499 500 Symbol# 5: "tmpfile" 501 String index = 32 Ifd = 1 502 Storage class = Nil Index = 1048575 503 Symbol type = Proc Value = 0 504 505 Symbol# 6: "ftell" 506 String index = 40 Ifd = 1 507 Storage class = Nil Index = 1048575 508 Symbol type = Proc Value = 0 509 510 Symbol# 7: "rewind" 511 String index = 46 Ifd = 1 512 Storage class = Nil Index = 1048575 513 Symbol type = Proc Value = 0 514 515 Symbol# 8: "setbuf" 516 String index = 53 Ifd = 1 517 Storage class = Nil Index = 1048575 518 Symbol type = Proc Value = 0 519 520 Symbol# 9: "setbuffer" 521 String index = 60 Ifd = 1 522 Storage class = Nil Index = 1048575 523 Symbol type = Proc Value = 0 524 525 Symbol# 10: "setlinebuf" 526 String index = 70 Ifd = 1 527 Storage class = Nil Index = 1048575 528 Symbol type = Proc Value = 0 529 530 Symbol# 11: "fgets" 531 String index = 81 Ifd = 1 532 Storage class = Nil Index = 1048575 533 Symbol type = Proc Value = 0 534 535 Symbol# 12: "gets" 536 String index = 87 Ifd = 1 537 Storage class = Nil Index = 1048575 538 Symbol type = Proc Value = 0 539 540 Symbol# 13: "ctermid" 541 String index = 92 Ifd = 1 542 Storage class = Nil Index = 1048575 543 Symbol type = Proc Value = 0 544 545 Symbol# 14: "cuserid" 546 String index = 100 Ifd = 1 547 Storage class = Nil Index = 1048575 548 Symbol type = Proc Value = 0 549 550 Symbol# 15: "tempnam" 551 String index = 108 Ifd = 1 552 Storage class = Nil Index = 1048575 553 Symbol type = Proc Value = 0 554 555 Symbol# 16: "tmpnam" 556 String index = 116 Ifd = 1 557 Storage class = Nil Index = 1048575 558 Symbol type = Proc Value = 0 559 560 Symbol# 17: "sprintf" 561 String index = 123 Ifd = 1 562 Storage class = Nil Index = 1048575 563 Symbol type = Proc Value = 0 564 565 Symbol# 18: "main" 566 Type = int 567 String index = 131 Ifd = 0 568 Storage class = Text Index = 1 569 Symbol type = Proc Value = 0 570 571 Symbol# 19: "printf" 572 String index = 136 Ifd = 0 573 Storage class = Undefined Index = 1048575 574 Symbol type = Proc Value = 0 575 576 The following auxiliary table entries were unused: 577 578 #0 0 0x00000000 void 579 #2 8 0x00000008 char 580 #3 16 0x00000010 short 581 #4 24 0x00000018 int 582 #5 32 0x00000020 long 583 #6 40 0x00000028 float 584 #7 44 0x0000002c double 585 #8 12 0x0000000c unsigned char 586 #9 20 0x00000014 unsigned short 587 #10 28 0x0000001c unsigned int 588 #11 36 0x00000024 unsigned long 589 #14 0 0x00000000 void 590 #15 24 0x00000018 int 591 #19 32 0x00000020 long 592 #20 40 0x00000028 float 593 #21 44 0x0000002c double 594 #22 12 0x0000000c unsigned char 595 #23 20 0x00000014 unsigned short 596 #24 28 0x0000001c unsigned int 597 #25 36 0x00000024 unsigned long 598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } 599 600*/ 601 602 603#include "config.h" 604#include "system.h" 605#include "version.h" 606#include "intl.h" 607 608#ifndef __SABER__ 609#define saber_stop() 610#endif 611 612#ifndef __LINE__ 613#define __LINE__ 0 614#endif 615 616/* Due to size_t being defined in sys/types.h and different 617 in stddef.h, we have to do this by hand..... Note, these 618 types are correct for MIPS based systems, and may not be 619 correct for other systems. Ultrix 4.0 and Silicon Graphics 620 have this fixed, but since the following is correct, and 621 the fact that including stddef.h gets you GCC's version 622 instead of the standard one it's not worth it to fix it. */ 623 624#if defined(__OSF1__) || defined(__OSF__) || defined(__osf__) 625#define Size_t long unsigned int 626#else 627#define Size_t unsigned int 628#endif 629#define Ptrdiff_t long 630 631/* The following might be called from obstack or malloc, 632 so they can't be static. */ 633 634extern void pfatal_with_name 635 PARAMS ((const char *)) ATTRIBUTE_NORETURN; 636extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN; 637 void botch PARAMS ((const char *)) ATTRIBUTE_NORETURN; 638 639extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; 640extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1; 641 642#ifndef MIPS_DEBUGGING_INFO 643 644static int line_number; 645static int cur_line_start; 646static int debug; 647static int had_errors; 648static const char *progname; 649static const char *input_name; 650 651int 652main () 653{ 654 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n"); 655 exit (1); 656} 657 658#else /* MIPS_DEBUGGING defined */ 659 660/* The local and global symbols have a field index, so undo any defines 661 of index -> strchr. */ 662 663#undef index 664 665#include <signal.h> 666 667#ifndef CROSS_COMPILE 668#include <a.out.h> 669#else 670#include "mips/a.out.h" 671#endif /* CROSS_COMPILE */ 672 673#include "gstab.h" 674 675#define STAB_CODE_TYPE enum __stab_debug_code 676 677#ifndef MALLOC_CHECK 678#ifdef __SABER__ 679#define MALLOC_CHECK 680#endif 681#endif 682 683#define IS_ASM_IDENT(ch) \ 684 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$') 685 686 687/* Redefinition of storage classes as an enumeration for better 688 debugging. */ 689 690typedef enum sc { 691 sc_Nil = scNil, /* no storage class */ 692 sc_Text = scText, /* text symbol */ 693 sc_Data = scData, /* initialized data symbol */ 694 sc_Bss = scBss, /* un-initialized data symbol */ 695 sc_Register = scRegister, /* value of symbol is register number */ 696 sc_Abs = scAbs, /* value of symbol is absolute */ 697 sc_Undefined = scUndefined, /* who knows? */ 698 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ 699 sc_Bits = scBits, /* this is a bit field */ 700 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ 701 sc_RegImage = scRegImage, /* register value saved on stack */ 702 sc_Info = scInfo, /* symbol contains debugger information */ 703 sc_UserStruct = scUserStruct, /* addr in struct user for current process */ 704 sc_SData = scSData, /* load time only small data */ 705 sc_SBss = scSBss, /* load time only small common */ 706 sc_RData = scRData, /* load time only read only data */ 707 sc_Var = scVar, /* Var parameter (fortran,pascal) */ 708 sc_Common = scCommon, /* common variable */ 709 sc_SCommon = scSCommon, /* small common */ 710 sc_VarRegister = scVarRegister, /* Var parameter in a register */ 711 sc_Variant = scVariant, /* Variant record */ 712 sc_SUndefined = scSUndefined, /* small undefined(external) data */ 713 sc_Init = scInit, /* .init section symbol */ 714 sc_Max = scMax /* Max storage class+1 */ 715} sc_t; 716 717/* Redefinition of symbol type. */ 718 719typedef enum st { 720 st_Nil = stNil, /* Nuthin' special */ 721 st_Global = stGlobal, /* external symbol */ 722 st_Static = stStatic, /* static */ 723 st_Param = stParam, /* procedure argument */ 724 st_Local = stLocal, /* local variable */ 725 st_Label = stLabel, /* label */ 726 st_Proc = stProc, /* " " Procedure */ 727 st_Block = stBlock, /* beginning of block */ 728 st_End = stEnd, /* end (of anything) */ 729 st_Member = stMember, /* member (of anything - struct/union/enum */ 730 st_Typedef = stTypedef, /* type definition */ 731 st_File = stFile, /* file name */ 732 st_RegReloc = stRegReloc, /* register relocation */ 733 st_Forward = stForward, /* forwarding address */ 734 st_StaticProc = stStaticProc, /* load time only static procs */ 735 st_Constant = stConstant, /* const */ 736 st_Str = stStr, /* string */ 737 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ 738 st_Expr = stExpr, /* 2+2 vs. 4 */ 739 st_Type = stType, /* post-coercion SER */ 740 st_Max = stMax /* max type+1 */ 741} st_t; 742 743/* Redefinition of type qualifiers. */ 744 745typedef enum tq { 746 tq_Nil = tqNil, /* bt is what you see */ 747 tq_Ptr = tqPtr, /* pointer */ 748 tq_Proc = tqProc, /* procedure */ 749 tq_Array = tqArray, /* duh */ 750 tq_Far = tqFar, /* longer addressing - 8086/8 land */ 751 tq_Vol = tqVol, /* volatile */ 752 tq_Max = tqMax /* Max type qualifier+1 */ 753} tq_t; 754 755/* Redefinition of basic types. */ 756 757typedef enum bt { 758 bt_Nil = btNil, /* undefined */ 759 bt_Adr = btAdr, /* address - integer same size as pointer */ 760 bt_Char = btChar, /* character */ 761 bt_UChar = btUChar, /* unsigned character */ 762 bt_Short = btShort, /* short */ 763 bt_UShort = btUShort, /* unsigned short */ 764 bt_Int = btInt, /* int */ 765 bt_UInt = btUInt, /* unsigned int */ 766 bt_Long = btLong, /* long */ 767 bt_ULong = btULong, /* unsigned long */ 768 bt_Float = btFloat, /* float (real) */ 769 bt_Double = btDouble, /* Double (real) */ 770 bt_Struct = btStruct, /* Structure (Record) */ 771 bt_Union = btUnion, /* Union (variant) */ 772 bt_Enum = btEnum, /* Enumerated */ 773 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ 774 bt_Range = btRange, /* subrange of int */ 775 bt_Set = btSet, /* pascal sets */ 776 bt_Complex = btComplex, /* fortran complex */ 777 bt_DComplex = btDComplex, /* fortran double complex */ 778 bt_Indirect = btIndirect, /* forward or unnamed typedef */ 779 bt_FixedDec = btFixedDec, /* Fixed Decimal */ 780 bt_FloatDec = btFloatDec, /* Float Decimal */ 781 bt_String = btString, /* Varying Length Character String */ 782 bt_Bit = btBit, /* Aligned Bit String */ 783 bt_Picture = btPicture, /* Picture */ 784 785#ifdef btVoid 786 bt_Void = btVoid, /* Void */ 787#else 788#define bt_Void bt_Nil 789#endif 790 791 bt_Max = btMax /* Max basic type+1 */ 792} bt_t; 793 794 795 796/* Basic COFF storage classes. */ 797enum coff_storage { 798 C_EFCN = -1, 799 C_NULL = 0, 800 C_AUTO = 1, 801 C_EXT = 2, 802 C_STAT = 3, 803 C_REG = 4, 804 C_EXTDEF = 5, 805 C_LABEL = 6, 806 C_ULABEL = 7, 807 C_MOS = 8, 808 C_ARG = 9, 809 C_STRTAG = 10, 810 C_MOU = 11, 811 C_UNTAG = 12, 812 C_TPDEF = 13, 813 C_USTATIC = 14, 814 C_ENTAG = 15, 815 C_MOE = 16, 816 C_REGPARM = 17, 817 C_FIELD = 18, 818 C_BLOCK = 100, 819 C_FCN = 101, 820 C_EOS = 102, 821 C_FILE = 103, 822 C_LINE = 104, 823 C_ALIAS = 105, 824 C_HIDDEN = 106, 825 C_MAX = 107 826} coff_storage_t; 827 828/* Regular COFF fundamental type. */ 829typedef enum coff_type { 830 T_NULL = 0, 831 T_ARG = 1, 832 T_CHAR = 2, 833 T_SHORT = 3, 834 T_INT = 4, 835 T_LONG = 5, 836 T_FLOAT = 6, 837 T_DOUBLE = 7, 838 T_STRUCT = 8, 839 T_UNION = 9, 840 T_ENUM = 10, 841 T_MOE = 11, 842 T_UCHAR = 12, 843 T_USHORT = 13, 844 T_UINT = 14, 845 T_ULONG = 15, 846 T_MAX = 16 847} coff_type_t; 848 849/* Regular COFF derived types. */ 850typedef enum coff_dt { 851 DT_NON = 0, 852 DT_PTR = 1, 853 DT_FCN = 2, 854 DT_ARY = 3, 855 DT_MAX = 4 856} coff_dt_t; 857 858#define N_BTMASK 017 /* bitmask to isolate basic type */ 859#define N_TMASK 003 /* bitmask to isolate derived type */ 860#define N_BT_SHIFT 4 /* # bits to shift past basic type */ 861#define N_TQ_SHIFT 2 /* # bits to shift derived types */ 862#define N_TQ 6 /* # of type qualifiers */ 863 864/* States for whether to hash type or not. */ 865typedef enum hash_state { 866 hash_no = 0, /* don't hash type */ 867 hash_yes = 1, /* ok to hash type, or use previous hash */ 868 hash_record = 2 /* ok to record hash, but don't use prev. */ 869} hash_state_t; 870 871 872/* Types of different sized allocation requests. */ 873enum alloc_type { 874 alloc_type_none, /* dummy value */ 875 alloc_type_scope, /* nested scopes linked list */ 876 alloc_type_vlinks, /* glue linking pages in varray */ 877 alloc_type_shash, /* string hash element */ 878 alloc_type_thash, /* type hash element */ 879 alloc_type_tag, /* struct/union/tag element */ 880 alloc_type_forward, /* element to hold unknown tag */ 881 alloc_type_thead, /* head of type hash list */ 882 alloc_type_varray, /* general varray allocation */ 883 alloc_type_last /* last+1 element for array bounds */ 884}; 885 886 887#define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1)) 888#define DWORD_ALIGN(x) (((x) + 7) & ~7) 889 890 891/* Structures to provide n-number of virtual arrays, each of which can 892 grow linearly, and which are written in the object file as sequential 893 pages. On systems with a BSD malloc that define USE_MALLOC, the 894 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc 895 adds its overhead, and rounds up to the next power of 2. Pages are 896 linked together via a linked list. 897 898 If PAGE_SIZE is > 4096, the string length in the shash_t structure 899 can't be represented (assuming there are strings > 4096 bytes). */ 900 901#ifndef PAGE_SIZE 902#define PAGE_SIZE 4096 /* size of varray pages */ 903#endif 904 905#define PAGE_USIZE ((Size_t) PAGE_SIZE) 906 907 908#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ 909#ifndef USE_MALLOC /* in one memory request */ 910#define MAX_CLUSTER_PAGES 64 911#else 912#define MAX_CLUSTER_PAGES 63 913#endif 914#endif 915 916 917/* Linked list connecting separate page allocations. */ 918typedef struct vlinks { 919 struct vlinks *prev; /* previous set of pages */ 920 struct vlinks *next; /* next set of pages */ 921 union page *datum; /* start of page */ 922 unsigned long start_index; /* starting index # of page */ 923} vlinks_t; 924 925 926/* Virtual array header. */ 927typedef struct varray { 928 vlinks_t *first; /* first page link */ 929 vlinks_t *last; /* last page link */ 930 unsigned long num_allocated; /* # objects allocated */ 931 unsigned short object_size; /* size in bytes of each object */ 932 unsigned short objects_per_page; /* # objects that can fit on a page */ 933 unsigned short objects_last_page; /* # objects allocated on last page */ 934} varray_t; 935 936#ifndef MALLOC_CHECK 937#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) 938#else 939#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) 940#endif 941 942#define INIT_VARRAY(type) { /* macro to initialize a varray */ \ 943 (vlinks_t *) 0, /* first */ \ 944 (vlinks_t *) 0, /* last */ \ 945 0, /* num_allocated */ \ 946 sizeof (type), /* object_size */ \ 947 OBJECTS_PER_PAGE (type), /* objects_per_page */ \ 948 OBJECTS_PER_PAGE (type), /* objects_last_page */ \ 949} 950 951/* Master type for indexes within the symbol table. */ 952typedef unsigned long symint_t; 953 954 955/* Linked list support for nested scopes (file, block, structure, etc.). */ 956typedef struct scope { 957 struct scope *prev; /* previous scope level */ 958 struct scope *free; /* free list pointer */ 959 SYMR *lsym; /* pointer to local symbol node */ 960 symint_t lnumber; /* lsym index */ 961 st_t type; /* type of the node */ 962} scope_t; 963 964 965/* Forward reference list for tags referenced, but not yet defined. */ 966typedef struct forward { 967 struct forward *next; /* next forward reference */ 968 struct forward *free; /* free list pointer */ 969 AUXU *ifd_ptr; /* pointer to store file index */ 970 AUXU *index_ptr; /* pointer to store symbol index */ 971 AUXU *type_ptr; /* pointer to munge type info */ 972} forward_t; 973 974 975/* Linked list support for tags. The first tag in the list is always 976 the current tag for that block. */ 977typedef struct tag { 978 struct tag *free; /* free list pointer */ 979 struct shash *hash_ptr; /* pointer to the hash table head */ 980 struct tag *same_name; /* tag with same name in outer scope */ 981 struct tag *same_block; /* next tag defined in the same block. */ 982 struct forward *forward_ref; /* list of forward references */ 983 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ 984 symint_t ifd; /* file # tag defined in */ 985 symint_t indx; /* index within file's local symbols */ 986} tag_t; 987 988 989/* Head of a block's linked list of tags. */ 990typedef struct thead { 991 struct thead *prev; /* previous block */ 992 struct thead *free; /* free list pointer */ 993 struct tag *first_tag; /* first tag in block defined */ 994} thead_t; 995 996 997/* Union containing pointers to each the small structures which are freed up. */ 998typedef union small_free { 999 scope_t *f_scope; /* scope structure */ 1000 thead_t *f_thead; /* tag head structure */ 1001 tag_t *f_tag; /* tag element structure */ 1002 forward_t *f_forward; /* forward tag reference */ 1003} small_free_t; 1004 1005 1006/* String hash table support. The size of the hash table must fit 1007 within a page. */ 1008 1009#ifndef SHASH_SIZE 1010#define SHASH_SIZE 1009 1011#endif 1012 1013#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */ 1014 1015typedef struct shash { 1016 struct shash *next; /* next hash value */ 1017 char *string; /* string we are hashing */ 1018 symint_t len; /* string length */ 1019 symint_t indx; /* index within string table */ 1020 EXTR *esym_ptr; /* global symbol pointer */ 1021 SYMR *sym_ptr; /* local symbol pointer */ 1022 SYMR *end_ptr; /* symbol pointer to end block */ 1023 tag_t *tag_ptr; /* tag pointer */ 1024 PDR *proc_ptr; /* procedure descriptor pointer */ 1025} shash_t; 1026 1027 1028/* Type hash table support. The size of the hash table must fit 1029 within a page with the other extended file descriptor information. 1030 Because unique types which are hashed are fewer in number than 1031 strings, we use a smaller hash value. */ 1032 1033#ifndef THASH_SIZE 1034#define THASH_SIZE 113 1035#endif 1036 1037typedef struct thash { 1038 struct thash *next; /* next hash value */ 1039 AUXU type; /* type we are hashing */ 1040 symint_t indx; /* index within string table */ 1041} thash_t; 1042 1043 1044/* Extended file descriptor that contains all of the support necessary 1045 to add things to each file separately. */ 1046typedef struct efdr { 1047 FDR fdr; /* File header to be written out */ 1048 FDR *orig_fdr; /* original file header */ 1049 char *name; /* filename */ 1050 int name_len; /* length of the filename */ 1051 symint_t void_type; /* aux. pointer to 'void' type */ 1052 symint_t int_type; /* aux. pointer to 'int' type */ 1053 scope_t *cur_scope; /* current nested scopes */ 1054 symint_t file_index; /* current file number */ 1055 int nested_scopes; /* # nested scopes */ 1056 varray_t strings; /* local strings */ 1057 varray_t symbols; /* local symbols */ 1058 varray_t procs; /* procedures */ 1059 varray_t aux_syms; /* auxiliary symbols */ 1060 struct efdr *next_file; /* next file descriptor */ 1061 /* string/type hash tables */ 1062 shash_t **shash_head; /* string hash table */ 1063 thash_t *thash_head[THASH_SIZE]; 1064} efdr_t; 1065 1066/* Pre-initialized extended file structure. */ 1067static efdr_t init_file = 1068{ 1069 { /* FDR structure */ 1070#ifdef __alpha 1071 0, /* adr: memory address of beginning of file */ 1072 0, /* cbLineOffset: byte offset from header for this file ln's */ 1073 0, /* cbLine: size of lines for this file */ 1074 0, /* cbSs: number of bytes in the ss */ 1075 0, /* rss: file name (of source, if known) */ 1076 0, /* issBase: file's string space */ 1077 0, /* isymBase: beginning of symbols */ 1078 0, /* csym: count file's of symbols */ 1079 0, /* ilineBase: file's line symbols */ 1080 0, /* cline: count of file's line symbols */ 1081 0, /* ioptBase: file's optimization entries */ 1082 0, /* copt: count of file's optimization entries */ 1083 0, /* ipdFirst: start of procedures for this file */ 1084 0, /* cpd: count of procedures for this file */ 1085 0, /* iauxBase: file's auxiliary entries */ 1086 0, /* caux: count of file's auxiliary entries */ 1087 0, /* rfdBase: index into the file indirect table */ 1088 0, /* crfd: count file indirect entries */ 1089 langC, /* lang: language for this file */ 1090 1, /* fMerge: whether this file can be merged */ 1091 0, /* fReadin: true if read in (not just created) */ 1092#ifdef HOST_WORDS_BIG_ENDIAN 1093 1, /* fBigendian: if 1, compiled on big endian machine */ 1094#else 1095 0, /* fBigendian: if 1, compiled on big endian machine */ 1096#endif 1097 0, /* fTrim: whether the symbol table was trimmed */ 1098 GLEVEL_2, /* glevel: level this file was compiled with */ 1099 0, /* reserved: reserved for future use */ 1100#else 1101 0, /* adr: memory address of beginning of file */ 1102 0, /* rss: file name (of source, if known) */ 1103 0, /* issBase: file's string space */ 1104 0, /* cbSs: number of bytes in the ss */ 1105 0, /* isymBase: beginning of symbols */ 1106 0, /* csym: count file's of symbols */ 1107 0, /* ilineBase: file's line symbols */ 1108 0, /* cline: count of file's line symbols */ 1109 0, /* ioptBase: file's optimization entries */ 1110 0, /* copt: count of file's optimization entries */ 1111 0, /* ipdFirst: start of procedures for this file */ 1112 0, /* cpd: count of procedures for this file */ 1113 0, /* iauxBase: file's auxiliary entries */ 1114 0, /* caux: count of file's auxiliary entries */ 1115 0, /* rfdBase: index into the file indirect table */ 1116 0, /* crfd: count file indirect entries */ 1117 langC, /* lang: language for this file */ 1118 1, /* fMerge: whether this file can be merged */ 1119 0, /* fReadin: true if read in (not just created) */ 1120#ifdef HOST_WORDS_BIG_ENDIAN 1121 1, /* fBigendian: if 1, compiled on big endian machine */ 1122#else 1123 0, /* fBigendian: if 1, compiled on big endian machine */ 1124#endif 1125 GLEVEL_2, /* glevel: level this file was compiled with */ 1126 0, /* reserved: reserved for future use */ 1127 0, /* cbLineOffset: byte offset from header for this file ln's */ 1128 0, /* cbLine: size of lines for this file */ 1129#endif 1130 }, 1131 1132 (FDR *) 0, /* orig_fdr: original file header pointer */ 1133 (char *) 0, /* name: pointer to filename */ 1134 0, /* name_len: length of filename */ 1135 0, /* void_type: ptr to aux node for void type */ 1136 0, /* int_type: ptr to aux node for int type */ 1137 (scope_t *) 0, /* cur_scope: current scope being processed */ 1138 0, /* file_index: current file # */ 1139 0, /* nested_scopes: # nested scopes */ 1140 INIT_VARRAY (char), /* strings: local string varray */ 1141 INIT_VARRAY (SYMR), /* symbols: local symbols varray */ 1142 INIT_VARRAY (PDR), /* procs: procedure varray */ 1143 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */ 1144 1145 (struct efdr *) 0, /* next_file: next file structure */ 1146 1147 (shash_t **) 0, /* shash_head: string hash table */ 1148 { 0 }, /* thash_head: type hash table */ 1149}; 1150 1151 1152static efdr_t *first_file; /* first file descriptor */ 1153static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ 1154 1155 1156/* Union of various things that are held in pages. */ 1157typedef union page { 1158 char byte [ PAGE_SIZE ]; 1159 unsigned char ubyte [ PAGE_SIZE ]; 1160 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; 1161 FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; 1162 PDR proc [ PAGE_SIZE / sizeof (PDR) ]; 1163 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ]; 1164 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ]; 1165 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ]; 1166 DNR dense [ PAGE_SIZE / sizeof (DNR) ]; 1167 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; 1168 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; 1169 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; 1170 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; 1171 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; 1172 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; 1173 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; 1174} page_t; 1175 1176 1177/* Structure holding allocation information for small sized structures. */ 1178typedef struct alloc_info { 1179 const char *alloc_name; /* name of this allocation type (must be first) */ 1180 page_t *cur_page; /* current page being allocated from */ 1181 small_free_t free_list; /* current free list if any */ 1182 int unallocated; /* number of elements unallocated on page */ 1183 int total_alloc; /* total number of allocations */ 1184 int total_free; /* total number of frees */ 1185 int total_pages; /* total number of pages allocated */ 1186} alloc_info_t; 1187 1188/* Type information collected together. */ 1189typedef struct type_info { 1190 bt_t basic_type; /* basic type */ 1191 coff_type_t orig_type; /* original COFF-based type */ 1192 int num_tq; /* # type qualifiers */ 1193 int num_dims; /* # dimensions */ 1194 int num_sizes; /* # sizes */ 1195 int extra_sizes; /* # extra sizes not tied with dims */ 1196 tag_t * tag_ptr; /* tag pointer */ 1197 int bitfield; /* symbol is a bitfield */ 1198 int unknown_tag; /* this is an unknown tag */ 1199 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ 1200 symint_t dimensions [N_TQ]; /* dimensions for each array */ 1201 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of 1202 struct/union/enum + bitfield size */ 1203} type_info_t; 1204 1205/* Pre-initialized type_info struct. */ 1206static type_info_t type_info_init = { 1207 bt_Nil, /* basic type */ 1208 T_NULL, /* original COFF-based type */ 1209 0, /* # type qualifiers */ 1210 0, /* # dimensions */ 1211 0, /* # sizes */ 1212 0, /* sizes not tied with dims */ 1213 NULL, /* ptr to tag */ 1214 0, /* bitfield */ 1215 0, /* unknown tag */ 1216 { /* type qualifiers */ 1217 tq_Nil, 1218 tq_Nil, 1219 tq_Nil, 1220 tq_Nil, 1221 tq_Nil, 1222 tq_Nil, 1223 }, 1224 { /* dimensions */ 1225 0, 1226 0, 1227 0, 1228 0, 1229 0, 1230 0 1231 }, 1232 { /* sizes */ 1233 0, 1234 0, 1235 0, 1236 0, 1237 0, 1238 0, 1239 0, 1240 0, 1241 }, 1242}; 1243 1244 1245/* Global virtual arrays & hash table for external strings as well as 1246 for the tags table and global tables for file descriptors, and 1247 dense numbers. */ 1248 1249static varray_t file_desc = INIT_VARRAY (efdr_t); 1250static varray_t dense_num = INIT_VARRAY (DNR); 1251static varray_t tag_strings = INIT_VARRAY (char); 1252static varray_t ext_strings = INIT_VARRAY (char); 1253static varray_t ext_symbols = INIT_VARRAY (EXTR); 1254 1255static shash_t *orig_str_hash[SHASH_SIZE]; 1256static shash_t *ext_str_hash [SHASH_SIZE]; 1257static shash_t *tag_hash [SHASH_SIZE]; 1258 1259/* Static types for int and void. Also, remember the last function's 1260 type (which is set up when we encounter the declaration for the 1261 function, and used when the end block for the function is emitted. */ 1262 1263static type_info_t int_type_info; 1264static type_info_t void_type_info; 1265static type_info_t last_func_type_info; 1266static EXTR *last_func_eptr; 1267 1268 1269/* Convert COFF basic type to ECOFF basic type. The T_NULL type 1270 really should use bt_Void, but this causes the current ecoff GDB to 1271 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS 1272 2.0) doesn't understand it, even though the compiler generates it. 1273 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler 1274 suite, but for now go with what works. */ 1275 1276static const bt_t map_coff_types[ (int) T_MAX ] = { 1277 bt_Nil, /* T_NULL */ 1278 bt_Nil, /* T_ARG */ 1279 bt_Char, /* T_CHAR */ 1280 bt_Short, /* T_SHORT */ 1281 bt_Int, /* T_INT */ 1282 bt_Long, /* T_LONG */ 1283 bt_Float, /* T_FLOAT */ 1284 bt_Double, /* T_DOUBLE */ 1285 bt_Struct, /* T_STRUCT */ 1286 bt_Union, /* T_UNION */ 1287 bt_Enum, /* T_ENUM */ 1288 bt_Enum, /* T_MOE */ 1289 bt_UChar, /* T_UCHAR */ 1290 bt_UShort, /* T_USHORT */ 1291 bt_UInt, /* T_UINT */ 1292 bt_ULong /* T_ULONG */ 1293}; 1294 1295/* Convert COFF storage class to ECOFF storage class. */ 1296static const sc_t map_coff_storage[ (int) C_MAX ] = { 1297 sc_Nil, /* 0: C_NULL */ 1298 sc_Abs, /* 1: C_AUTO auto var */ 1299 sc_Undefined, /* 2: C_EXT external */ 1300 sc_Data, /* 3: C_STAT static */ 1301 sc_Register, /* 4: C_REG register */ 1302 sc_Undefined, /* 5: C_EXTDEF ??? */ 1303 sc_Text, /* 6: C_LABEL label */ 1304 sc_Text, /* 7: C_ULABEL user label */ 1305 sc_Info, /* 8: C_MOS member of struct */ 1306 sc_Abs, /* 9: C_ARG argument */ 1307 sc_Info, /* 10: C_STRTAG struct tag */ 1308 sc_Info, /* 11: C_MOU member of union */ 1309 sc_Info, /* 12: C_UNTAG union tag */ 1310 sc_Info, /* 13: C_TPDEF typedef */ 1311 sc_Data, /* 14: C_USTATIC ??? */ 1312 sc_Info, /* 15: C_ENTAG enum tag */ 1313 sc_Info, /* 16: C_MOE member of enum */ 1314 sc_Register, /* 17: C_REGPARM register parameter */ 1315 sc_Bits, /* 18; C_FIELD bitfield */ 1316 sc_Nil, /* 19 */ 1317 sc_Nil, /* 20 */ 1318 sc_Nil, /* 21 */ 1319 sc_Nil, /* 22 */ 1320 sc_Nil, /* 23 */ 1321 sc_Nil, /* 24 */ 1322 sc_Nil, /* 25 */ 1323 sc_Nil, /* 26 */ 1324 sc_Nil, /* 27 */ 1325 sc_Nil, /* 28 */ 1326 sc_Nil, /* 29 */ 1327 sc_Nil, /* 30 */ 1328 sc_Nil, /* 31 */ 1329 sc_Nil, /* 32 */ 1330 sc_Nil, /* 33 */ 1331 sc_Nil, /* 34 */ 1332 sc_Nil, /* 35 */ 1333 sc_Nil, /* 36 */ 1334 sc_Nil, /* 37 */ 1335 sc_Nil, /* 38 */ 1336 sc_Nil, /* 39 */ 1337 sc_Nil, /* 40 */ 1338 sc_Nil, /* 41 */ 1339 sc_Nil, /* 42 */ 1340 sc_Nil, /* 43 */ 1341 sc_Nil, /* 44 */ 1342 sc_Nil, /* 45 */ 1343 sc_Nil, /* 46 */ 1344 sc_Nil, /* 47 */ 1345 sc_Nil, /* 48 */ 1346 sc_Nil, /* 49 */ 1347 sc_Nil, /* 50 */ 1348 sc_Nil, /* 51 */ 1349 sc_Nil, /* 52 */ 1350 sc_Nil, /* 53 */ 1351 sc_Nil, /* 54 */ 1352 sc_Nil, /* 55 */ 1353 sc_Nil, /* 56 */ 1354 sc_Nil, /* 57 */ 1355 sc_Nil, /* 58 */ 1356 sc_Nil, /* 59 */ 1357 sc_Nil, /* 60 */ 1358 sc_Nil, /* 61 */ 1359 sc_Nil, /* 62 */ 1360 sc_Nil, /* 63 */ 1361 sc_Nil, /* 64 */ 1362 sc_Nil, /* 65 */ 1363 sc_Nil, /* 66 */ 1364 sc_Nil, /* 67 */ 1365 sc_Nil, /* 68 */ 1366 sc_Nil, /* 69 */ 1367 sc_Nil, /* 70 */ 1368 sc_Nil, /* 71 */ 1369 sc_Nil, /* 72 */ 1370 sc_Nil, /* 73 */ 1371 sc_Nil, /* 74 */ 1372 sc_Nil, /* 75 */ 1373 sc_Nil, /* 76 */ 1374 sc_Nil, /* 77 */ 1375 sc_Nil, /* 78 */ 1376 sc_Nil, /* 79 */ 1377 sc_Nil, /* 80 */ 1378 sc_Nil, /* 81 */ 1379 sc_Nil, /* 82 */ 1380 sc_Nil, /* 83 */ 1381 sc_Nil, /* 84 */ 1382 sc_Nil, /* 85 */ 1383 sc_Nil, /* 86 */ 1384 sc_Nil, /* 87 */ 1385 sc_Nil, /* 88 */ 1386 sc_Nil, /* 89 */ 1387 sc_Nil, /* 90 */ 1388 sc_Nil, /* 91 */ 1389 sc_Nil, /* 92 */ 1390 sc_Nil, /* 93 */ 1391 sc_Nil, /* 94 */ 1392 sc_Nil, /* 95 */ 1393 sc_Nil, /* 96 */ 1394 sc_Nil, /* 97 */ 1395 sc_Nil, /* 98 */ 1396 sc_Nil, /* 99 */ 1397 sc_Text, /* 100: C_BLOCK block start/end */ 1398 sc_Text, /* 101: C_FCN function start/end */ 1399 sc_Info, /* 102: C_EOS end of struct/union/enum */ 1400 sc_Nil, /* 103: C_FILE file start */ 1401 sc_Nil, /* 104: C_LINE line number */ 1402 sc_Nil, /* 105: C_ALIAS combined type info */ 1403 sc_Nil, /* 106: C_HIDDEN ??? */ 1404}; 1405 1406/* Convert COFF storage class to ECOFF symbol type. */ 1407static const st_t map_coff_sym_type[ (int) C_MAX ] = { 1408 st_Nil, /* 0: C_NULL */ 1409 st_Local, /* 1: C_AUTO auto var */ 1410 st_Global, /* 2: C_EXT external */ 1411 st_Static, /* 3: C_STAT static */ 1412 st_Local, /* 4: C_REG register */ 1413 st_Global, /* 5: C_EXTDEF ??? */ 1414 st_Label, /* 6: C_LABEL label */ 1415 st_Label, /* 7: C_ULABEL user label */ 1416 st_Member, /* 8: C_MOS member of struct */ 1417 st_Param, /* 9: C_ARG argument */ 1418 st_Block, /* 10: C_STRTAG struct tag */ 1419 st_Member, /* 11: C_MOU member of union */ 1420 st_Block, /* 12: C_UNTAG union tag */ 1421 st_Typedef, /* 13: C_TPDEF typedef */ 1422 st_Static, /* 14: C_USTATIC ??? */ 1423 st_Block, /* 15: C_ENTAG enum tag */ 1424 st_Member, /* 16: C_MOE member of enum */ 1425 st_Param, /* 17: C_REGPARM register parameter */ 1426 st_Member, /* 18; C_FIELD bitfield */ 1427 st_Nil, /* 19 */ 1428 st_Nil, /* 20 */ 1429 st_Nil, /* 21 */ 1430 st_Nil, /* 22 */ 1431 st_Nil, /* 23 */ 1432 st_Nil, /* 24 */ 1433 st_Nil, /* 25 */ 1434 st_Nil, /* 26 */ 1435 st_Nil, /* 27 */ 1436 st_Nil, /* 28 */ 1437 st_Nil, /* 29 */ 1438 st_Nil, /* 30 */ 1439 st_Nil, /* 31 */ 1440 st_Nil, /* 32 */ 1441 st_Nil, /* 33 */ 1442 st_Nil, /* 34 */ 1443 st_Nil, /* 35 */ 1444 st_Nil, /* 36 */ 1445 st_Nil, /* 37 */ 1446 st_Nil, /* 38 */ 1447 st_Nil, /* 39 */ 1448 st_Nil, /* 40 */ 1449 st_Nil, /* 41 */ 1450 st_Nil, /* 42 */ 1451 st_Nil, /* 43 */ 1452 st_Nil, /* 44 */ 1453 st_Nil, /* 45 */ 1454 st_Nil, /* 46 */ 1455 st_Nil, /* 47 */ 1456 st_Nil, /* 48 */ 1457 st_Nil, /* 49 */ 1458 st_Nil, /* 50 */ 1459 st_Nil, /* 51 */ 1460 st_Nil, /* 52 */ 1461 st_Nil, /* 53 */ 1462 st_Nil, /* 54 */ 1463 st_Nil, /* 55 */ 1464 st_Nil, /* 56 */ 1465 st_Nil, /* 57 */ 1466 st_Nil, /* 58 */ 1467 st_Nil, /* 59 */ 1468 st_Nil, /* 60 */ 1469 st_Nil, /* 61 */ 1470 st_Nil, /* 62 */ 1471 st_Nil, /* 63 */ 1472 st_Nil, /* 64 */ 1473 st_Nil, /* 65 */ 1474 st_Nil, /* 66 */ 1475 st_Nil, /* 67 */ 1476 st_Nil, /* 68 */ 1477 st_Nil, /* 69 */ 1478 st_Nil, /* 70 */ 1479 st_Nil, /* 71 */ 1480 st_Nil, /* 72 */ 1481 st_Nil, /* 73 */ 1482 st_Nil, /* 74 */ 1483 st_Nil, /* 75 */ 1484 st_Nil, /* 76 */ 1485 st_Nil, /* 77 */ 1486 st_Nil, /* 78 */ 1487 st_Nil, /* 79 */ 1488 st_Nil, /* 80 */ 1489 st_Nil, /* 81 */ 1490 st_Nil, /* 82 */ 1491 st_Nil, /* 83 */ 1492 st_Nil, /* 84 */ 1493 st_Nil, /* 85 */ 1494 st_Nil, /* 86 */ 1495 st_Nil, /* 87 */ 1496 st_Nil, /* 88 */ 1497 st_Nil, /* 89 */ 1498 st_Nil, /* 90 */ 1499 st_Nil, /* 91 */ 1500 st_Nil, /* 92 */ 1501 st_Nil, /* 93 */ 1502 st_Nil, /* 94 */ 1503 st_Nil, /* 95 */ 1504 st_Nil, /* 96 */ 1505 st_Nil, /* 97 */ 1506 st_Nil, /* 98 */ 1507 st_Nil, /* 99 */ 1508 st_Block, /* 100: C_BLOCK block start/end */ 1509 st_Proc, /* 101: C_FCN function start/end */ 1510 st_End, /* 102: C_EOS end of struct/union/enum */ 1511 st_File, /* 103: C_FILE file start */ 1512 st_Nil, /* 104: C_LINE line number */ 1513 st_Nil, /* 105: C_ALIAS combined type info */ 1514 st_Nil, /* 106: C_HIDDEN ??? */ 1515}; 1516 1517/* Map COFF derived types to ECOFF type qualifiers. */ 1518static const tq_t map_coff_derived_type[ (int) DT_MAX ] = { 1519 tq_Nil, /* 0: DT_NON no more qualifiers */ 1520 tq_Ptr, /* 1: DT_PTR pointer */ 1521 tq_Proc, /* 2: DT_FCN function */ 1522 tq_Array, /* 3: DT_ARY array */ 1523}; 1524 1525 1526/* Keep track of different sized allocation requests. */ 1527static alloc_info_t alloc_counts[ (int) alloc_type_last ]; 1528 1529 1530/* Pointers and such to the original symbol table that is read in. */ 1531static struct filehdr orig_file_header; /* global object file header */ 1532 1533static HDRR orig_sym_hdr; /* symbolic header on input */ 1534static char *orig_linenum; /* line numbers */ 1535static DNR *orig_dense; /* dense numbers */ 1536static PDR *orig_procs; /* procedures */ 1537static SYMR *orig_local_syms; /* local symbols */ 1538static OPTR *orig_opt_syms; /* optimization symbols */ 1539static AUXU *orig_aux_syms; /* auxiliary symbols */ 1540static char *orig_local_strs; /* local strings */ 1541static char *orig_ext_strs; /* external strings */ 1542static FDR *orig_files; /* file descriptors */ 1543static symint_t *orig_rfds; /* relative file desc's */ 1544static EXTR *orig_ext_syms; /* external symbols */ 1545 1546/* Macros to convert an index into a given object within the original 1547 symbol table. */ 1548#define CHECK(num,max,str) \ 1549 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0) 1550 1551#define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum) 1552#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense) 1553#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs) 1554#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files) 1555#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms) 1556#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs) 1557#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms) 1558#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs) 1559#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms) 1560#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms) 1561#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds) 1562 1563/* Various other statics. */ 1564static HDRR symbolic_header; /* symbolic header */ 1565static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ 1566static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */ 1567static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */ 1568static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */ 1569static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/ 1570static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */ 1571static long file_offset = 0; /* current file offset */ 1572static long max_file_offset = 0; /* maximum file offset */ 1573static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */ 1574static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */ 1575static char *progname = (char *) 0; /* program name for errors */ 1576static const char *input_name = "stdin"; /* name of input file */ 1577static char *object_name = (char *) 0; /* tmp. name of object file */ 1578static char *obj_in_name = (char *) 0; /* name of input object file */ 1579static char *cur_line_start = (char *) 0; /* current line read in */ 1580static char *cur_line_ptr = (char *) 0; /* ptr within current line */ 1581static unsigned cur_line_nbytes = 0; /* # bytes for current line */ 1582static unsigned cur_line_alloc = 0; /* # bytes total in buffer */ 1583static long line_number = 0; /* current input line number */ 1584static int debug = 0; /* trace functions */ 1585static int version = 0; /* print version # */ 1586static int had_errors = 0; /* != 0 if errors were found */ 1587static int rename_output = 0; /* != 0 if rename output file*/ 1588static int delete_input = 0; /* != 0 if delete input after done */ 1589static int stabs_seen = 0; /* != 0 if stabs have been seen */ 1590 1591 1592/* Pseudo symbol to use when putting stabs into the symbol table. */ 1593#ifndef STABS_SYMBOL 1594#define STABS_SYMBOL "@stabs" 1595#endif 1596 1597static const char stabs_symbol[] = STABS_SYMBOL; 1598 1599 1600/* Forward reference for functions. See the definition for more details. */ 1601 1602#ifndef STATIC 1603#define STATIC static 1604#endif 1605 1606STATIC int out_of_bounds PARAMS ((symint_t, symint_t, const char *, int)); 1607 1608STATIC shash_t *hash_string PARAMS ((const char *, 1609 Ptrdiff_t, 1610 shash_t **, 1611 symint_t *)); 1612 1613STATIC symint_t add_string PARAMS ((varray_t *, 1614 shash_t **, 1615 const char *, 1616 const char *, 1617 shash_t **)); 1618 1619STATIC symint_t add_local_symbol 1620 PARAMS ((const char *, 1621 const char *, 1622 st_t, 1623 sc_t, 1624 symint_t, 1625 symint_t)); 1626 1627STATIC symint_t add_ext_symbol PARAMS ((EXTR *, 1628 int)); 1629 1630STATIC symint_t add_aux_sym_symint 1631 PARAMS ((symint_t)); 1632 1633STATIC symint_t add_aux_sym_rndx 1634 PARAMS ((int, symint_t)); 1635 1636STATIC symint_t add_aux_sym_tir PARAMS ((type_info_t *, 1637 hash_state_t, 1638 thash_t **)); 1639 1640STATIC tag_t * get_tag PARAMS ((const char *, 1641 const char *, 1642 symint_t, 1643 bt_t)); 1644 1645STATIC void add_unknown_tag PARAMS ((tag_t *)); 1646 1647STATIC void add_procedure PARAMS ((const char *, 1648 const char *)); 1649 1650STATIC void add_file PARAMS ((const char *, 1651 const char *)); 1652 1653STATIC void add_bytes PARAMS ((varray_t *, 1654 char *, 1655 Size_t)); 1656 1657STATIC void add_varray_page PARAMS ((varray_t *)); 1658 1659STATIC void update_headers PARAMS ((void)); 1660 1661STATIC void write_varray PARAMS ((varray_t *, off_t, const char *)); 1662STATIC void write_object PARAMS ((void)); 1663STATIC const char *st_to_string PARAMS ((st_t)); 1664STATIC const char *sc_to_string PARAMS ((sc_t)); 1665STATIC char *read_line PARAMS ((void)); 1666STATIC void parse_input PARAMS ((void)); 1667STATIC void mark_stabs PARAMS ((const char *)); 1668STATIC void parse_begin PARAMS ((const char *)); 1669STATIC void parse_bend PARAMS ((const char *)); 1670STATIC void parse_def PARAMS ((const char *)); 1671STATIC void parse_end PARAMS ((const char *)); 1672STATIC void parse_ent PARAMS ((const char *)); 1673STATIC void parse_file PARAMS ((const char *)); 1674STATIC void parse_stabs_common 1675 PARAMS ((const char *, const char *, const char *)); 1676STATIC void parse_stabs PARAMS ((const char *)); 1677STATIC void parse_stabn PARAMS ((const char *)); 1678STATIC page_t *read_seek PARAMS ((Size_t, off_t, const char *)); 1679STATIC void copy_object PARAMS ((void)); 1680 1681STATIC void catch_signal PARAMS ((int)) ATTRIBUTE_NORETURN; 1682STATIC page_t *allocate_page PARAMS ((void)); 1683 1684STATIC page_t *allocate_multiple_pages 1685 PARAMS ((Size_t)); 1686 1687STATIC void free_multiple_pages 1688 PARAMS ((page_t *, Size_t)); 1689 1690#ifndef MALLOC_CHECK 1691STATIC page_t *allocate_cluster 1692 PARAMS ((Size_t)); 1693#endif 1694 1695STATIC forward_t *allocate_forward PARAMS ((void)); 1696STATIC scope_t *allocate_scope PARAMS ((void)); 1697STATIC shash_t *allocate_shash PARAMS ((void)); 1698STATIC tag_t *allocate_tag PARAMS ((void)); 1699STATIC thash_t *allocate_thash PARAMS ((void)); 1700STATIC thead_t *allocate_thead PARAMS ((void)); 1701STATIC vlinks_t *allocate_vlinks PARAMS ((void)); 1702 1703STATIC void free_forward PARAMS ((forward_t *)); 1704STATIC void free_scope PARAMS ((scope_t *)); 1705STATIC void free_tag PARAMS ((tag_t *)); 1706STATIC void free_thead PARAMS ((thead_t *)); 1707 1708extern char *optarg; 1709extern int optind; 1710extern int opterr; 1711 1712/* List of assembler pseudo ops and beginning sequences that need 1713 special actions. Someday, this should be a hash table, and such, 1714 but for now a linear list of names and calls to memcmp will 1715 do...... */ 1716 1717typedef struct _pseudo_ops { 1718 const char *const name; /* pseudo-op in ascii */ 1719 const int len; /* length of name to compare */ 1720 void (*const func) PARAMS ((const char *)); /* function to handle line */ 1721} pseudo_ops_t; 1722 1723static const pseudo_ops_t pseudo_ops[] = { 1724 { "#.def", sizeof("#.def")-1, parse_def }, 1725 { "#.begin", sizeof("#.begin")-1, parse_begin }, 1726 { "#.bend", sizeof("#.bend")-1, parse_bend }, 1727 { ".end", sizeof(".end")-1, parse_end }, 1728 { ".ent", sizeof(".ent")-1, parse_ent }, 1729 { ".file", sizeof(".file")-1, parse_file }, 1730 { "#.stabs", sizeof("#.stabs")-1, parse_stabs }, 1731 { "#.stabn", sizeof("#.stabn")-1, parse_stabn }, 1732 { ".stabs", sizeof(".stabs")-1, parse_stabs }, 1733 { ".stabn", sizeof(".stabn")-1, parse_stabn }, 1734 { "#@stabs", sizeof("#@stabs")-1, mark_stabs }, 1735}; 1736 1737 1738/* Add a page to a varray object. */ 1739 1740STATIC void 1741add_varray_page (vp) 1742 varray_t *vp; /* varray to add page to */ 1743{ 1744 vlinks_t *new_links = allocate_vlinks (); 1745 1746#ifdef MALLOC_CHECK 1747 if (vp->object_size > 1) 1748 new_links->datum = (page_t *) xcalloc (1, vp->object_size); 1749 else 1750#endif 1751 new_links->datum = allocate_page (); 1752 1753 alloc_counts[ (int) alloc_type_varray ].total_alloc++; 1754 alloc_counts[ (int) alloc_type_varray ].total_pages++; 1755 1756 new_links->start_index = vp->num_allocated; 1757 vp->objects_last_page = 0; 1758 1759 if (vp->first == (vlinks_t *) 0) /* first allocation? */ 1760 vp->first = vp->last = new_links; 1761 else 1762 { /* 2nd or greater allocation */ 1763 new_links->prev = vp->last; 1764 vp->last->next = new_links; 1765 vp->last = new_links; 1766 } 1767} 1768 1769 1770/* Compute hash code (from tree.c) */ 1771 1772#define HASHBITS 30 1773 1774STATIC shash_t * 1775hash_string (text, hash_len, hash_tbl, ret_hash_index) 1776 const char *text; /* ptr to text to hash */ 1777 Ptrdiff_t hash_len; /* length of the text */ 1778 shash_t **hash_tbl; /* hash table */ 1779 symint_t *ret_hash_index; /* ptr to store hash index */ 1780{ 1781 unsigned long hi; 1782 Ptrdiff_t i; 1783 shash_t *ptr; 1784 int first_ch = *text; 1785 1786 hi = hash_len; 1787 for (i = 0; i < hash_len; i++) 1788 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff); 1789 1790 hi &= (1 << HASHBITS) - 1; 1791 hi %= SHASH_SIZE; 1792 1793 if (ret_hash_index != (symint_t *) 0) 1794 *ret_hash_index = hi; 1795 1796 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next) 1797 if ((symint_t) hash_len == ptr->len 1798 && first_ch == ptr->string[0] 1799 && memcmp (text, ptr->string, hash_len) == 0) 1800 break; 1801 1802 return ptr; 1803} 1804 1805 1806/* Add a string (and null pad) to one of the string tables. A 1807 consequence of hashing strings, is that we don't let strings 1808 cross page boundaries. The extra nulls will be ignored. */ 1809 1810STATIC symint_t 1811add_string (vp, hash_tbl, start, end_p1, ret_hash) 1812 varray_t *vp; /* string virtual array */ 1813 shash_t **hash_tbl; /* ptr to hash table */ 1814 const char *start; /* 1st byte in string */ 1815 const char *end_p1; /* 1st byte after string */ 1816 shash_t **ret_hash; /* return hash pointer */ 1817{ 1818 Ptrdiff_t len = end_p1 - start; 1819 shash_t *hash_ptr; 1820 symint_t hi; 1821 1822 if (len >= (Ptrdiff_t) PAGE_USIZE) 1823 fatal ("string too big (%ld bytes)", (long) len); 1824 1825 hash_ptr = hash_string (start, len, hash_tbl, &hi); 1826 if (hash_ptr == (shash_t *) 0) 1827 { 1828 char *p; 1829 1830 if (vp->objects_last_page + len >= (long) PAGE_USIZE) 1831 { 1832 vp->num_allocated 1833 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; 1834 add_varray_page (vp); 1835 } 1836 1837 hash_ptr = allocate_shash (); 1838 hash_ptr->next = hash_tbl[hi]; 1839 hash_tbl[hi] = hash_ptr; 1840 1841 hash_ptr->len = len; 1842 hash_ptr->indx = vp->num_allocated; 1843 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ]; 1844 1845 vp->objects_last_page += len+1; 1846 vp->num_allocated += len+1; 1847 1848 while (len-- > 0) 1849 *p++ = *start++; 1850 1851 *p = '\0'; 1852 } 1853 1854 if (ret_hash != (shash_t **) 0) 1855 *ret_hash = hash_ptr; 1856 1857 return hash_ptr->indx; 1858} 1859 1860 1861/* Add a local symbol. */ 1862 1863STATIC symint_t 1864add_local_symbol (str_start, str_end_p1, type, storage, value, indx) 1865 const char *str_start; /* first byte in string */ 1866 const char *str_end_p1; /* first byte after string */ 1867 st_t type; /* symbol type */ 1868 sc_t storage; /* storage class */ 1869 symint_t value; /* value of symbol */ 1870 symint_t indx; /* index to local/aux. syms */ 1871{ 1872 symint_t ret; 1873 SYMR *psym; 1874 scope_t *pscope; 1875 thead_t *ptag_head; 1876 tag_t *ptag; 1877 tag_t *ptag_next; 1878 varray_t *vp = &cur_file_ptr->symbols; 1879 int scope_delta = 0; 1880 shash_t *hash_ptr = (shash_t *) 0; 1881 1882 if (vp->objects_last_page == vp->objects_per_page) 1883 add_varray_page (vp); 1884 1885 psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; 1886 1887 psym->value = value; 1888 psym->st = (unsigned) type; 1889 psym->sc = (unsigned) storage; 1890 psym->index = indx; 1891 psym->iss = (str_start == (const char *) 0) 1892 ? 0 1893 : add_string (&cur_file_ptr->strings, 1894 &cur_file_ptr->shash_head[0], 1895 str_start, 1896 str_end_p1, 1897 &hash_ptr); 1898 1899 ret = vp->num_allocated++; 1900 1901 if (MIPS_IS_STAB (psym)) 1902 return ret; 1903 1904 /* Save the symbol within the hash table if this is a static 1905 item, and it has a name. */ 1906 if (hash_ptr != (shash_t *) 0 1907 && (type == st_Global || type == st_Static || type == st_Label 1908 || type == st_Proc || type == st_StaticProc)) 1909 hash_ptr->sym_ptr = psym; 1910 1911 /* push or pop a scope if appropriate. */ 1912 switch (type) 1913 { 1914 default: 1915 break; 1916 1917 case st_File: /* beginning of file */ 1918 case st_Proc: /* procedure */ 1919 case st_StaticProc: /* static procedure */ 1920 case st_Block: /* begin scope */ 1921 pscope = allocate_scope (); 1922 pscope->prev = cur_file_ptr->cur_scope; 1923 pscope->lsym = psym; 1924 pscope->lnumber = ret; 1925 pscope->type = type; 1926 cur_file_ptr->cur_scope = pscope; 1927 1928 if (type != st_File) 1929 scope_delta = 1; 1930 1931 /* For every block type except file, struct, union, or 1932 enumeration blocks, push a level on the tag stack. We omit 1933 file types, so that tags can span file boundaries. */ 1934 if (type != st_File && storage != sc_Info) 1935 { 1936 ptag_head = allocate_thead (); 1937 ptag_head->first_tag = 0; 1938 ptag_head->prev = cur_tag_head; 1939 cur_tag_head = ptag_head; 1940 } 1941 break; 1942 1943 case st_End: 1944 pscope = cur_file_ptr->cur_scope; 1945 if (pscope == (scope_t *) 0) 1946 error ("internal error, too many st_End's"); 1947 1948 else 1949 { 1950 st_t begin_type = (st_t) pscope->lsym->st; 1951 1952 if (begin_type != st_File) 1953 scope_delta = -1; 1954 1955 /* Except for file, structure, union, or enumeration end 1956 blocks remove all tags created within this scope. */ 1957 if (begin_type != st_File && storage != sc_Info) 1958 { 1959 ptag_head = cur_tag_head; 1960 cur_tag_head = ptag_head->prev; 1961 1962 for (ptag = ptag_head->first_tag; 1963 ptag != (tag_t *) 0; 1964 ptag = ptag_next) 1965 { 1966 if (ptag->forward_ref != (forward_t *) 0) 1967 add_unknown_tag (ptag); 1968 1969 ptag_next = ptag->same_block; 1970 ptag->hash_ptr->tag_ptr = ptag->same_name; 1971 free_tag (ptag); 1972 } 1973 1974 free_thead (ptag_head); 1975 } 1976 1977 cur_file_ptr->cur_scope = pscope->prev; 1978 psym->index = pscope->lnumber; /* blk end gets begin sym # */ 1979 1980 if (storage != sc_Info) 1981 psym->iss = pscope->lsym->iss; /* blk end gets same name */ 1982 1983 if (begin_type == st_File || begin_type == st_Block) 1984 pscope->lsym->index = ret+1; /* block begin gets next sym # */ 1985 1986 /* Functions push two or more aux words as follows: 1987 1st word: index+1 of the end symbol 1988 2nd word: type of the function (plus any aux words needed). 1989 Also, tie the external pointer back to the function begin symbol. */ 1990 else 1991 { 1992 symint_t type; 1993 pscope->lsym->index = add_aux_sym_symint (ret+1); 1994 type = add_aux_sym_tir (&last_func_type_info, 1995 hash_no, 1996 &cur_file_ptr->thash_head[0]); 1997 if (last_func_eptr) 1998 { 1999 last_func_eptr->ifd = cur_file_ptr->file_index; 2000 2001 /* The index for an external st_Proc symbol is the index 2002 of the st_Proc symbol in the local symbol table. */ 2003 last_func_eptr->asym.index = psym->index; 2004 } 2005 } 2006 2007 free_scope (pscope); 2008 } 2009 } 2010 2011 cur_file_ptr->nested_scopes += scope_delta; 2012 2013 if (debug && type != st_File 2014 && (debug > 2 || type == st_Block || type == st_End 2015 || type == st_Proc || type == st_StaticProc)) 2016 { 2017 const char *sc_str = sc_to_string (storage); 2018 const char *st_str = st_to_string (type); 2019 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); 2020 2021 fprintf (stderr, 2022 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", 2023 value, depth, sc_str); 2024 2025 if (str_start && str_end_p1 - str_start > 0) 2026 fprintf (stderr, " st= %-11s name= %.*s\n", 2027 st_str, (int) (str_end_p1 - str_start), str_start); 2028 else 2029 { 2030 Size_t len = strlen (st_str); 2031 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str); 2032 } 2033 } 2034 2035 return ret; 2036} 2037 2038 2039/* Add an external symbol. */ 2040 2041STATIC symint_t 2042add_ext_symbol (esym, ifd) 2043 EXTR *esym; /* symbol pointer */ 2044 int ifd; /* file index */ 2045{ 2046 const char *str_start; /* first byte in string */ 2047 const char *str_end_p1; /* first byte after string */ 2048 EXTR *psym; 2049 varray_t *vp = &ext_symbols; 2050 shash_t *hash_ptr = (shash_t *) 0; 2051 2052 str_start = ORIG_ESTRS (esym->asym.iss); 2053 str_end_p1 = str_start + strlen (str_start); 2054 2055 if (debug > 1) 2056 { 2057 long value = esym->asym.value; 2058 const char *sc_str = sc_to_string (esym->asym.sc); 2059 const char *st_str = st_to_string (esym->asym.st); 2060 2061 fprintf (stderr, 2062 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s", 2063 value, ifd, sc_str); 2064 2065 if (str_start && str_end_p1 - str_start > 0) 2066 fprintf (stderr, " st= %-11s name= %.*s\n", 2067 st_str, (int) (str_end_p1 - str_start), str_start); 2068 else 2069 fprintf (stderr, " st= %s\n", st_str); 2070 } 2071 2072 if (vp->objects_last_page == vp->objects_per_page) 2073 add_varray_page (vp); 2074 2075 psym = &vp->last->datum->esym[ vp->objects_last_page++ ]; 2076 2077 *psym = *esym; 2078 psym->ifd = ifd; 2079 psym->asym.index = indexNil; 2080 psym->asym.iss = (str_start == (const char *) 0) 2081 ? 0 2082 : add_string (&ext_strings, 2083 &ext_str_hash[0], 2084 str_start, 2085 str_end_p1, 2086 &hash_ptr); 2087 2088 hash_ptr->esym_ptr = psym; 2089 return vp->num_allocated++; 2090} 2091 2092 2093/* Add an auxiliary symbol (passing a symint). */ 2094 2095STATIC symint_t 2096add_aux_sym_symint (aux_word) 2097 symint_t aux_word; /* auxiliary information word */ 2098{ 2099 AUXU *aux_ptr; 2100 efdr_t *file_ptr = cur_file_ptr; 2101 varray_t *vp = &file_ptr->aux_syms; 2102 2103 if (vp->objects_last_page == vp->objects_per_page) 2104 add_varray_page (vp); 2105 2106 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2107 aux_ptr->isym = aux_word; 2108 2109 return vp->num_allocated++; 2110} 2111 2112 2113/* Add an auxiliary symbol (passing a file/symbol index combo). */ 2114 2115STATIC symint_t 2116add_aux_sym_rndx (file_index, sym_index) 2117 int file_index; 2118 symint_t sym_index; 2119{ 2120 AUXU *aux_ptr; 2121 efdr_t *file_ptr = cur_file_ptr; 2122 varray_t *vp = &file_ptr->aux_syms; 2123 2124 if (vp->objects_last_page == vp->objects_per_page) 2125 add_varray_page (vp); 2126 2127 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2128 aux_ptr->rndx.rfd = file_index; 2129 aux_ptr->rndx.index = sym_index; 2130 2131 return vp->num_allocated++; 2132} 2133 2134 2135/* Add an auxiliary symbol (passing the basic type and possibly 2136 type qualifiers). */ 2137 2138STATIC symint_t 2139add_aux_sym_tir (t, state, hash_tbl) 2140 type_info_t *t; /* current type information */ 2141 hash_state_t state; /* whether to hash type or not */ 2142 thash_t **hash_tbl; /* pointer to hash table to use */ 2143{ 2144 AUXU *aux_ptr; 2145 efdr_t *file_ptr = cur_file_ptr; 2146 varray_t *vp = &file_ptr->aux_syms; 2147 static AUXU init_aux; 2148 symint_t ret; 2149 int i; 2150 AUXU aux; 2151 2152 aux = init_aux; 2153 aux.ti.bt = (int) t->basic_type; 2154 aux.ti.continued = 0; 2155 aux.ti.fBitfield = t->bitfield; 2156 2157 aux.ti.tq0 = (int) t->type_qualifiers[0]; 2158 aux.ti.tq1 = (int) t->type_qualifiers[1]; 2159 aux.ti.tq2 = (int) t->type_qualifiers[2]; 2160 aux.ti.tq3 = (int) t->type_qualifiers[3]; 2161 aux.ti.tq4 = (int) t->type_qualifiers[4]; 2162 aux.ti.tq5 = (int) t->type_qualifiers[5]; 2163 2164 2165 /* For anything that adds additional information, we must not hash, 2166 so check here, and reset our state. */ 2167 2168 if (state != hash_no 2169 && (t->type_qualifiers[0] == tq_Array 2170 || t->type_qualifiers[1] == tq_Array 2171 || t->type_qualifiers[2] == tq_Array 2172 || t->type_qualifiers[3] == tq_Array 2173 || t->type_qualifiers[4] == tq_Array 2174 || t->type_qualifiers[5] == tq_Array 2175 || t->basic_type == bt_Struct 2176 || t->basic_type == bt_Union 2177 || t->basic_type == bt_Enum 2178 || t->bitfield 2179 || t->num_dims > 0)) 2180 state = hash_no; 2181 2182 /* See if we can hash this type, and save some space, but some types 2183 can't be hashed (because they contain arrays or continuations), 2184 and others can be put into the hash list, but cannot use existing 2185 types because other aux entries precede this one. */ 2186 2187 if (state != hash_no) 2188 { 2189 thash_t *hash_ptr; 2190 symint_t hi; 2191 2192 hi = aux.isym & ((1 << HASHBITS) - 1); 2193 hi %= THASH_SIZE; 2194 2195 for (hash_ptr = hash_tbl[hi]; 2196 hash_ptr != (thash_t *) 0; 2197 hash_ptr = hash_ptr->next) 2198 { 2199 if (aux.isym == hash_ptr->type.isym) 2200 break; 2201 } 2202 2203 if (hash_ptr != (thash_t *) 0 && state == hash_yes) 2204 return hash_ptr->indx; 2205 2206 if (hash_ptr == (thash_t *) 0) 2207 { 2208 hash_ptr = allocate_thash (); 2209 hash_ptr->next = hash_tbl[hi]; 2210 hash_ptr->type = aux; 2211 hash_ptr->indx = vp->num_allocated; 2212 hash_tbl[hi] = hash_ptr; 2213 } 2214 } 2215 2216 /* Everything is set up, add the aux symbol. */ 2217 if (vp->objects_last_page == vp->objects_per_page) 2218 add_varray_page (vp); 2219 2220 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2221 *aux_ptr = aux; 2222 2223 ret = vp->num_allocated++; 2224 2225 /* Add bitfield length if it exists. 2226 2227 NOTE: Mips documentation claims bitfield goes at the end of the 2228 AUX record, but the DECstation compiler emits it here. 2229 (This would only make a difference for enum bitfields.) 2230 2231 Also note: We use the last size given since gcc may emit 2 2232 for an enum bitfield. */ 2233 2234 if (t->bitfield) 2235 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]); 2236 2237 2238 /* Add tag information if needed. Structure, union, and enum 2239 references add 2 aux symbols: a [file index, symbol index] 2240 pointer to the structure type, and the current file index. */ 2241 2242 if (t->basic_type == bt_Struct 2243 || t->basic_type == bt_Union 2244 || t->basic_type == bt_Enum) 2245 { 2246 symint_t file_index = t->tag_ptr->ifd; 2247 symint_t sym_index = t->tag_ptr->indx; 2248 2249 if (t->unknown_tag) 2250 { 2251 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2252 (void) add_aux_sym_symint ((symint_t)-1); 2253 } 2254 else if (sym_index != indexNil) 2255 { 2256 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2257 (void) add_aux_sym_symint (file_index); 2258 } 2259 else 2260 { 2261 forward_t *forward_ref = allocate_forward (); 2262 2263 forward_ref->type_ptr = aux_ptr; 2264 forward_ref->next = t->tag_ptr->forward_ref; 2265 t->tag_ptr->forward_ref = forward_ref; 2266 2267 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2268 forward_ref->index_ptr 2269 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2270 2271 (void) add_aux_sym_symint (file_index); 2272 forward_ref->ifd_ptr 2273 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2274 } 2275 } 2276 2277 /* Add information about array bounds if they exist. */ 2278 for (i = 0; i < t->num_dims; i++) 2279 { 2280 (void) add_aux_sym_rndx (ST_RFDESCAPE, 2281 cur_file_ptr->int_type); 2282 2283 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ 2284 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ 2285 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ 2286 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ 2287 ? 0 2288 : (t->sizes[i] * 8) / t->dimensions[i]); 2289 }; 2290 2291 /* NOTE: Mips documentation claims that the bitfield width goes here. 2292 But it needs to be emitted earlier. */ 2293 2294 return ret; 2295} 2296 2297 2298/* Add a tag to the tag table (unless it already exists). */ 2299 2300STATIC tag_t * 2301get_tag (tag_start, tag_end_p1, indx, basic_type) 2302 const char *tag_start; /* 1st byte of tag name */ 2303 const char *tag_end_p1; /* 1st byte after tag name */ 2304 symint_t indx; /* index of tag start block */ 2305 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ 2306{ 2307 shash_t *hash_ptr; 2308 tag_t *tag_ptr; 2309 hash_ptr = hash_string (tag_start, 2310 tag_end_p1 - tag_start, 2311 &tag_hash[0], 2312 (symint_t *) 0); 2313 2314 if (hash_ptr != (shash_t *) 0 2315 && hash_ptr->tag_ptr != (tag_t *) 0) 2316 { 2317 tag_ptr = hash_ptr->tag_ptr; 2318 if (indx != indexNil) 2319 { 2320 tag_ptr->basic_type = basic_type; 2321 tag_ptr->ifd = cur_file_ptr->file_index; 2322 tag_ptr->indx = indx; 2323 } 2324 return tag_ptr; 2325 } 2326 2327 (void) add_string (&tag_strings, 2328 &tag_hash[0], 2329 tag_start, 2330 tag_end_p1, 2331 &hash_ptr); 2332 2333 tag_ptr = allocate_tag (); 2334 tag_ptr->forward_ref = (forward_t *) 0; 2335 tag_ptr->hash_ptr = hash_ptr; 2336 tag_ptr->same_name = hash_ptr->tag_ptr; 2337 tag_ptr->basic_type = basic_type; 2338 tag_ptr->indx = indx; 2339 tag_ptr->ifd = (indx == indexNil 2340 ? (symint_t) -1 : cur_file_ptr->file_index); 2341 tag_ptr->same_block = cur_tag_head->first_tag; 2342 2343 cur_tag_head->first_tag = tag_ptr; 2344 hash_ptr->tag_ptr = tag_ptr; 2345 2346 return tag_ptr; 2347} 2348 2349 2350/* Add an unknown {struct, union, enum} tag. */ 2351 2352STATIC void 2353add_unknown_tag (ptag) 2354 tag_t *ptag; /* pointer to tag information */ 2355{ 2356 shash_t *hash_ptr = ptag->hash_ptr; 2357 char *name_start = hash_ptr->string; 2358 char *name_end_p1 = name_start + hash_ptr->len; 2359 forward_t *f_next = ptag->forward_ref; 2360 forward_t *f_cur; 2361 int sym_index; 2362 int file_index = cur_file_ptr->file_index; 2363 2364 if (debug > 1) 2365 { 2366 const char *agg_type = "{unknown aggregate type}"; 2367 switch (ptag->basic_type) 2368 { 2369 case bt_Struct: agg_type = "struct"; break; 2370 case bt_Union: agg_type = "union"; break; 2371 case bt_Enum: agg_type = "enum"; break; 2372 default: break; 2373 } 2374 2375 fprintf (stderr, "unknown %s %.*s found\n", 2376 agg_type, (int) hash_ptr->len, name_start); 2377 } 2378 2379 sym_index = add_local_symbol (name_start, 2380 name_end_p1, 2381 st_Block, 2382 sc_Info, 2383 (symint_t) 0, 2384 (symint_t) 0); 2385 2386 (void) add_local_symbol (name_start, 2387 name_end_p1, 2388 st_End, 2389 sc_Info, 2390 (symint_t) 0, 2391 (symint_t) 0); 2392 2393 while (f_next != (forward_t *) 0) 2394 { 2395 f_cur = f_next; 2396 f_next = f_next->next; 2397 2398 f_cur->ifd_ptr->isym = file_index; 2399 f_cur->index_ptr->rndx.index = sym_index; 2400 2401 free_forward (f_cur); 2402 } 2403 2404 return; 2405} 2406 2407 2408/* Add a procedure to the current file's list of procedures, and record 2409 this is the current procedure. If the assembler created a PDR for 2410 this procedure, use that to initialize the current PDR. */ 2411 2412STATIC void 2413add_procedure (func_start, func_end_p1) 2414 const char *func_start; /* 1st byte of func name */ 2415 const char *func_end_p1; /* 1st byte after func name */ 2416{ 2417 PDR *new_proc_ptr; 2418 efdr_t *file_ptr = cur_file_ptr; 2419 varray_t *vp = &file_ptr->procs; 2420 symint_t value = 0; 2421 st_t proc_type = st_Proc; 2422 shash_t *shash_ptr = hash_string (func_start, 2423 func_end_p1 - func_start, 2424 &orig_str_hash[0], 2425 (symint_t *) 0); 2426 2427 if (debug) 2428 fputc ('\n', stderr); 2429 2430 if (vp->objects_last_page == vp->objects_per_page) 2431 add_varray_page (vp); 2432 2433 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ]; 2434 2435 vp->num_allocated++; 2436 2437 2438 /* Did the assembler create this procedure? If so, get the PDR information. */ 2439 cur_oproc_ptr = (PDR *) 0; 2440 if (shash_ptr != (shash_t *) 0) 2441 { 2442 PDR *old_proc_ptr = shash_ptr->proc_ptr; 2443 SYMR *sym_ptr = shash_ptr->sym_ptr; 2444 2445 if (old_proc_ptr != (PDR *) 0 2446 && sym_ptr != (SYMR *) 0 2447 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc)) 2448 { 2449 cur_oproc_begin = sym_ptr; 2450 cur_oproc_end = shash_ptr->end_ptr; 2451 value = sym_ptr->value; 2452 2453 cur_oproc_ptr = old_proc_ptr; 2454 proc_type = (st_t) sym_ptr->st; 2455 *new_proc_ptr = *old_proc_ptr; /* initialize */ 2456 } 2457 } 2458 2459 if (cur_oproc_ptr == (PDR *) 0) 2460 error ("did not find a PDR block for %.*s", 2461 (int) (func_end_p1 - func_start), func_start); 2462 2463 /* Determine the start of symbols. */ 2464 new_proc_ptr->isym = file_ptr->symbols.num_allocated; 2465 2466 /* Push the start of the function. */ 2467 (void) add_local_symbol (func_start, func_end_p1, 2468 proc_type, sc_Text, 2469 value, 2470 (symint_t) 0); 2471} 2472 2473 2474/* Add a new filename, and set up all of the file relative 2475 virtual arrays (strings, symbols, aux syms, etc.). Record 2476 where the current file structure lives. */ 2477 2478STATIC void 2479add_file (file_start, file_end_p1) 2480 const char *file_start; /* first byte in string */ 2481 const char *file_end_p1; /* first byte after string */ 2482{ 2483 static char zero_bytes[2] = { '\0', '\0' }; 2484 2485 Ptrdiff_t len = file_end_p1 - file_start; 2486 int first_ch = *file_start; 2487 efdr_t *file_ptr; 2488 2489 if (debug) 2490 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start); 2491 2492 /* See if the file has already been created. */ 2493 for (file_ptr = first_file; 2494 file_ptr != (efdr_t *) 0; 2495 file_ptr = file_ptr->next_file) 2496 { 2497 if (first_ch == file_ptr->name[0] 2498 && file_ptr->name[len] == '\0' 2499 && memcmp (file_start, file_ptr->name, len) == 0) 2500 { 2501 cur_file_ptr = file_ptr; 2502 break; 2503 } 2504 } 2505 2506 /* If this is a new file, create it. */ 2507 if (file_ptr == (efdr_t *) 0) 2508 { 2509 if (file_desc.objects_last_page == file_desc.objects_per_page) 2510 add_varray_page (&file_desc); 2511 2512 file_ptr = cur_file_ptr 2513 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ]; 2514 *file_ptr = init_file; 2515 2516 file_ptr->file_index = file_desc.num_allocated++; 2517 2518 /* Allocate the string hash table. */ 2519 file_ptr->shash_head = (shash_t **) allocate_page (); 2520 2521 /* Make sure 0 byte in string table is null */ 2522 add_string (&file_ptr->strings, 2523 &file_ptr->shash_head[0], 2524 &zero_bytes[0], 2525 &zero_bytes[0], 2526 (shash_t **) 0); 2527 2528 if (file_end_p1 - file_start > (long) PAGE_USIZE-2) 2529 fatal ("filename goes over one page boundary"); 2530 2531 /* Push the start of the filename. We assume that the filename 2532 will be stored at string offset 1. */ 2533 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text, 2534 (symint_t) 0, (symint_t) 0); 2535 file_ptr->fdr.rss = 1; 2536 file_ptr->name = &file_ptr->strings.last->datum->byte[1]; 2537 file_ptr->name_len = file_end_p1 - file_start; 2538 2539 /* Update the linked list of file descriptors. */ 2540 *last_file_ptr = file_ptr; 2541 last_file_ptr = &file_ptr->next_file; 2542 2543 /* Add void & int types to the file (void should be first to catch 2544 errant 0's within the index fields). */ 2545 file_ptr->void_type = add_aux_sym_tir (&void_type_info, 2546 hash_yes, 2547 &cur_file_ptr->thash_head[0]); 2548 2549 file_ptr->int_type = add_aux_sym_tir (&int_type_info, 2550 hash_yes, 2551 &cur_file_ptr->thash_head[0]); 2552 } 2553} 2554 2555 2556/* Add a stream of random bytes to a varray. */ 2557 2558STATIC void 2559add_bytes (vp, input_ptr, nitems) 2560 varray_t *vp; /* virtual array to add too */ 2561 char *input_ptr; /* start of the bytes */ 2562 Size_t nitems; /* # items to move */ 2563{ 2564 Size_t move_items; 2565 Size_t move_bytes; 2566 char *ptr; 2567 2568 while (nitems > 0) 2569 { 2570 if (vp->objects_last_page >= vp->objects_per_page) 2571 add_varray_page (vp); 2572 2573 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ]; 2574 move_items = vp->objects_per_page - vp->objects_last_page; 2575 if (move_items > nitems) 2576 move_items = nitems; 2577 2578 move_bytes = move_items * vp->object_size; 2579 nitems -= move_items; 2580 2581 if (move_bytes >= 32) 2582 { 2583 (void) memcpy (ptr, input_ptr, move_bytes); 2584 input_ptr += move_bytes; 2585 } 2586 else 2587 { 2588 while (move_bytes-- > 0) 2589 *ptr++ = *input_ptr++; 2590 } 2591 } 2592} 2593 2594 2595/* Convert storage class to string. */ 2596 2597STATIC const char * 2598sc_to_string (storage_class) 2599 sc_t storage_class; 2600{ 2601 switch (storage_class) 2602 { 2603 case sc_Nil: return "Nil,"; 2604 case sc_Text: return "Text,"; 2605 case sc_Data: return "Data,"; 2606 case sc_Bss: return "Bss,"; 2607 case sc_Register: return "Register,"; 2608 case sc_Abs: return "Abs,"; 2609 case sc_Undefined: return "Undefined,"; 2610 case sc_CdbLocal: return "CdbLocal,"; 2611 case sc_Bits: return "Bits,"; 2612 case sc_CdbSystem: return "CdbSystem,"; 2613 case sc_RegImage: return "RegImage,"; 2614 case sc_Info: return "Info,"; 2615 case sc_UserStruct: return "UserStruct,"; 2616 case sc_SData: return "SData,"; 2617 case sc_SBss: return "SBss,"; 2618 case sc_RData: return "RData,"; 2619 case sc_Var: return "Var,"; 2620 case sc_Common: return "Common,"; 2621 case sc_SCommon: return "SCommon,"; 2622 case sc_VarRegister: return "VarRegister,"; 2623 case sc_Variant: return "Variant,"; 2624 case sc_SUndefined: return "SUndefined,"; 2625 case sc_Init: return "Init,"; 2626 case sc_Max: return "Max,"; 2627 } 2628 2629 return "???,"; 2630} 2631 2632 2633/* Convert symbol type to string. */ 2634 2635STATIC const char * 2636st_to_string (symbol_type) 2637 st_t symbol_type; 2638{ 2639 switch (symbol_type) 2640 { 2641 case st_Nil: return "Nil,"; 2642 case st_Global: return "Global,"; 2643 case st_Static: return "Static,"; 2644 case st_Param: return "Param,"; 2645 case st_Local: return "Local,"; 2646 case st_Label: return "Label,"; 2647 case st_Proc: return "Proc,"; 2648 case st_Block: return "Block,"; 2649 case st_End: return "End,"; 2650 case st_Member: return "Member,"; 2651 case st_Typedef: return "Typedef,"; 2652 case st_File: return "File,"; 2653 case st_RegReloc: return "RegReloc,"; 2654 case st_Forward: return "Forward,"; 2655 case st_StaticProc: return "StaticProc,"; 2656 case st_Constant: return "Constant,"; 2657 case st_Str: return "String,"; 2658 case st_Number: return "Number,"; 2659 case st_Expr: return "Expr,"; 2660 case st_Type: return "Type,"; 2661 case st_Max: return "Max,"; 2662 } 2663 2664 return "???,"; 2665} 2666 2667 2668/* Read a line from standard input, and return the start of the buffer 2669 (which is grows if the line is too big). We split lines at the 2670 semi-colon, and return each logical line independently. */ 2671 2672STATIC char * 2673read_line () 2674{ 2675 static int line_split_p = 0; 2676 int string_p = 0; 2677 int comment_p = 0; 2678 int ch; 2679 char *ptr; 2680 2681 if (cur_line_start == (char *) 0) 2682 { /* allocate initial page */ 2683 cur_line_start = (char *) allocate_page (); 2684 cur_line_alloc = PAGE_SIZE; 2685 } 2686 2687 if (!line_split_p) 2688 line_number++; 2689 2690 line_split_p = 0; 2691 cur_line_nbytes = 0; 2692 2693 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch) 2694 { 2695 if (++cur_line_nbytes >= cur_line_alloc-1) 2696 { 2697 int num_pages = cur_line_alloc / PAGE_SIZE; 2698 char *old_buffer = cur_line_start; 2699 2700 cur_line_alloc += PAGE_SIZE; 2701 cur_line_start = (char *) allocate_multiple_pages (num_pages+1); 2702 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE); 2703 2704 ptr = cur_line_start + cur_line_nbytes - 1; 2705 } 2706 2707 if (ch == '\n') 2708 { 2709 *ptr++ = '\n'; 2710 *ptr = '\0'; 2711 cur_line_ptr = cur_line_start; 2712 return cur_line_ptr; 2713 } 2714 2715 else if (ch == '\0') 2716 error ("null character found in input"); 2717 2718 else if (!comment_p) 2719 { 2720 if (ch == '"') 2721 string_p = !string_p; 2722 2723 else if (ch == '#') 2724 comment_p++; 2725 2726 else if (ch == ';' && !string_p) 2727 { 2728 line_split_p = 1; 2729 *ptr++ = '\n'; 2730 *ptr = '\0'; 2731 cur_line_ptr = cur_line_start; 2732 return cur_line_ptr; 2733 } 2734 } 2735 } 2736 2737 if (ferror (stdin)) 2738 pfatal_with_name (input_name); 2739 2740 cur_line_ptr = (char *) 0; 2741 return (char *) 0; 2742} 2743 2744 2745/* Parse #.begin directives which have a label as the first argument 2746 which gives the location of the start of the block. */ 2747 2748STATIC void 2749parse_begin (start) 2750 const char *start; /* start of directive */ 2751{ 2752 const char *end_p1; /* end of label */ 2753 int ch; 2754 shash_t *hash_ptr; /* hash pointer to lookup label */ 2755 2756 if (cur_file_ptr == (efdr_t *) 0) 2757 { 2758 error ("#.begin directive without a preceding .file directive"); 2759 return; 2760 } 2761 2762 if (cur_proc_ptr == (PDR *) 0) 2763 { 2764 error ("#.begin directive without a preceding .ent directive"); 2765 return; 2766 } 2767 2768 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2769 ; 2770 2771 hash_ptr = hash_string (start, 2772 end_p1 - start, 2773 &orig_str_hash[0], 2774 (symint_t *) 0); 2775 2776 if (hash_ptr == (shash_t *) 0) 2777 { 2778 error ("label %.*s not found for #.begin", 2779 (int) (end_p1 - start), start); 2780 return; 2781 } 2782 2783 if (cur_oproc_begin == (SYMR *) 0) 2784 { 2785 error ("procedure table %.*s not found for #.begin", 2786 (int) (end_p1 - start), start); 2787 return; 2788 } 2789 2790 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2791 st_Block, sc_Text, 2792 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2793 (symint_t) 0); 2794} 2795 2796 2797/* Parse #.bend directives which have a label as the first argument 2798 which gives the location of the end of the block. */ 2799 2800STATIC void 2801parse_bend (start) 2802 const char *start; /* start of directive */ 2803{ 2804 const char *end_p1; /* end of label */ 2805 int ch; 2806 shash_t *hash_ptr; /* hash pointer to lookup label */ 2807 2808 if (cur_file_ptr == (efdr_t *) 0) 2809 { 2810 error ("#.begin directive without a preceding .file directive"); 2811 return; 2812 } 2813 2814 if (cur_proc_ptr == (PDR *) 0) 2815 { 2816 error ("#.bend directive without a preceding .ent directive"); 2817 return; 2818 } 2819 2820 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2821 ; 2822 2823 hash_ptr = hash_string (start, 2824 end_p1 - start, 2825 &orig_str_hash[0], 2826 (symint_t *) 0); 2827 2828 if (hash_ptr == (shash_t *) 0) 2829 { 2830 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start); 2831 return; 2832 } 2833 2834 if (cur_oproc_begin == (SYMR *) 0) 2835 { 2836 error ("procedure table %.*s not found for #.bend", 2837 (int) (end_p1 - start), start); 2838 return; 2839 } 2840 2841 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2842 st_End, sc_Text, 2843 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2844 (symint_t) 0); 2845} 2846 2847 2848/* Parse #.def directives, which are contain standard COFF subdirectives 2849 to describe the debugging format. These subdirectives include: 2850 2851 .scl specify storage class 2852 .val specify a value 2853 .endef specify end of COFF directives 2854 .type specify the type 2855 .size specify the size of an array 2856 .dim specify an array dimension 2857 .tag specify a tag for a struct, union, or enum. */ 2858 2859STATIC void 2860parse_def (name_start) 2861 const char *name_start; /* start of directive */ 2862{ 2863 const char *dir_start; /* start of current directive*/ 2864 const char *dir_end_p1; /* end+1 of current directive*/ 2865 const char *arg_start; /* start of current argument */ 2866 const char *arg_end_p1; /* end+1 of current argument */ 2867 const char *name_end_p1; /* end+1 of label */ 2868 const char *tag_start = 0; /* start of tag name */ 2869 const char *tag_end_p1 = 0; /* end+1 of tag name */ 2870 sc_t storage_class = sc_Nil; 2871 st_t symbol_type = st_Nil; 2872 type_info_t t; 2873 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/ 2874 int is_function = 0; /* != 0 if function */ 2875 symint_t value = 0; 2876 symint_t indx = cur_file_ptr->void_type; 2877 int error_line = 0; 2878 symint_t arg_number; 2879 symint_t temp_array[ N_TQ ]; 2880 int arg_was_number; 2881 int ch, i; 2882 Ptrdiff_t len; 2883 2884 static int inside_enumeration = 0; /* is this an enumeration? */ 2885 2886 2887 /* Initialize the type information. */ 2888 t = type_info_init; 2889 2890 2891 /* Search for the end of the name being defined. */ 2892 /* Allow spaces and such in names for G++ templates, which produce stabs 2893 that look like: 2894 2895 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */ 2896 2897 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++) 2898 ; 2899 2900 if (ch == '\0') 2901 { 2902 error_line = __LINE__; 2903 saber_stop (); 2904 goto bomb_out; 2905 } 2906 2907 /* Parse the remaining subdirectives now. */ 2908 dir_start = name_end_p1+1; 2909 for (;;) 2910 { 2911 while ((ch = *dir_start) == ' ' || ch == '\t') 2912 ++dir_start; 2913 2914 if (ch != '.') 2915 { 2916 error_line = __LINE__; 2917 saber_stop (); 2918 goto bomb_out; 2919 } 2920 2921 /* Are we done? */ 2922 if (dir_start[1] == 'e' 2923 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0) 2924 break; 2925 2926 /* Pick up the subdirective now */ 2927 for (dir_end_p1 = dir_start+1; 2928 (ch = *dir_end_p1) != ' ' && ch != '\t'; 2929 dir_end_p1++) 2930 { 2931 if (ch == '\0' || ISSPACE (ch)) 2932 { 2933 error_line = __LINE__; 2934 saber_stop (); 2935 goto bomb_out; 2936 } 2937 } 2938 2939 /* Pick up the subdirective argument now. */ 2940 arg_was_number = arg_number = 0; 2941 arg_end_p1 = 0; 2942 arg_start = dir_end_p1+1; 2943 ch = *arg_start; 2944 while (ch == ' ' || ch == '\t') 2945 ch = *++arg_start; 2946 2947 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2948 { 2949 int ch2; 2950 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2951 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',') 2952 arg_was_number++; 2953 } 2954 2955 else if (ch == '\0' || ISSPACE (ch)) 2956 { 2957 error_line = __LINE__; 2958 saber_stop (); 2959 goto bomb_out; 2960 } 2961 2962 if (!arg_was_number) 2963 { 2964 /* Allow spaces and such in names for G++ templates. */ 2965 for (arg_end_p1 = arg_start+1; 2966 (ch = *arg_end_p1) != ';' && ch != '\0'; 2967 arg_end_p1++) 2968 ; 2969 2970 if (ch == '\0') 2971 { 2972 error_line = __LINE__; 2973 saber_stop (); 2974 goto bomb_out; 2975 } 2976 } 2977 2978 /* Classify the directives now. */ 2979 len = dir_end_p1 - dir_start; 2980 switch (dir_start[1]) 2981 { 2982 default: 2983 error_line = __LINE__; 2984 saber_stop (); 2985 goto bomb_out; 2986 2987 case 'd': 2988 if (len == sizeof (".dim")-1 2989 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0 2990 && arg_was_number) 2991 { 2992 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 2993 2994 *t_ptr = arg_number; 2995 while (*arg_end_p1 == ',' && arg_was_number) 2996 { 2997 arg_start = arg_end_p1+1; 2998 ch = *arg_start; 2999 while (ch == ' ' || ch == '\t') 3000 ch = *++arg_start; 3001 3002 arg_was_number = 0; 3003 if (ISDIGIT (ch) || ch == '-' || ch == '+') 3004 { 3005 int ch2; 3006 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 3007 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',') 3008 arg_was_number++; 3009 3010 if (t_ptr == &temp_array[0]) 3011 { 3012 error_line = __LINE__; 3013 saber_stop (); 3014 goto bomb_out; 3015 } 3016 3017 *--t_ptr = arg_number; 3018 } 3019 } 3020 3021 /* Reverse order of dimensions. */ 3022 while (t_ptr <= &temp_array[ N_TQ-1 ]) 3023 { 3024 if (t.num_dims >= N_TQ-1) 3025 { 3026 error_line = __LINE__; 3027 saber_stop (); 3028 goto bomb_out; 3029 } 3030 3031 t.dimensions[ t.num_dims++ ] = *t_ptr++; 3032 } 3033 break; 3034 } 3035 else 3036 { 3037 error_line = __LINE__; 3038 saber_stop (); 3039 goto bomb_out; 3040 } 3041 3042 3043 case 's': 3044 if (len == sizeof (".scl")-1 3045 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0 3046 && arg_was_number 3047 && arg_number < ((symint_t) C_MAX)) 3048 { 3049 /* If the symbol is a static or external, we have 3050 already gotten the appropriate type and class, so 3051 make sure we don't override those values. This is 3052 needed because there are some type and classes that 3053 are not in COFF, such as short data, etc. */ 3054 if (symbol_type == st_Nil) 3055 { 3056 symbol_type = map_coff_sym_type[arg_number]; 3057 storage_class = map_coff_storage [arg_number]; 3058 } 3059 break; 3060 } 3061 3062 else if (len == sizeof (".size")-1 3063 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0 3064 && arg_was_number) 3065 { 3066 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 3067 3068 *t_ptr = arg_number; 3069 while (*arg_end_p1 == ',' && arg_was_number) 3070 { 3071 arg_start = arg_end_p1+1; 3072 ch = *arg_start; 3073 while (ch == ' ' || ch == '\t') 3074 ch = *++arg_start; 3075 3076 arg_was_number = 0; 3077 if (ISDIGIT (ch) || ch == '-' || ch == '+') 3078 { 3079 int ch2; 3080 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 3081 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',') 3082 arg_was_number++; 3083 3084 if (t_ptr == &temp_array[0]) 3085 { 3086 error_line = __LINE__; 3087 saber_stop (); 3088 goto bomb_out; 3089 } 3090 3091 *--t_ptr = arg_number; 3092 } 3093 } 3094 3095 /* Reverse order of sizes. */ 3096 while (t_ptr <= &temp_array[ N_TQ-1 ]) 3097 { 3098 if (t.num_sizes >= N_TQ-1) 3099 { 3100 error_line = __LINE__; 3101 saber_stop (); 3102 goto bomb_out; 3103 } 3104 3105 t.sizes[ t.num_sizes++ ] = *t_ptr++; 3106 } 3107 break; 3108 } 3109 3110 else 3111 { 3112 error_line = __LINE__; 3113 saber_stop (); 3114 goto bomb_out; 3115 } 3116 3117 3118 case 't': 3119 if (len == sizeof (".type")-1 3120 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0 3121 && arg_was_number) 3122 { 3123 tq_t *tq_ptr = &t.type_qualifiers[0]; 3124 3125 t.orig_type = (coff_type_t) (arg_number & N_BTMASK); 3126 t.basic_type = map_coff_types [(int) t.orig_type]; 3127 for (i = N_TQ-1; i >= 0; i--) 3128 { 3129 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT) 3130 & N_TMASK); 3131 3132 if (dt != (int) DT_NON) 3133 *tq_ptr++ = map_coff_derived_type [dt]; 3134 } 3135 3136 /* If this is a function, ignore it, so that we don't get 3137 two entries (one from the .ent, and one for the .def 3138 that precedes it). Save the type information so that 3139 the end block can properly add it after the begin block 3140 index. For MIPS knows what reason, we must strip off 3141 the function type at this point. */ 3142 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc) 3143 { 3144 is_function = 1; 3145 tq_ptr[-1] = tq_Nil; 3146 } 3147 3148 break; 3149 } 3150 3151 else if (len == sizeof (".tag")-1 3152 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0) 3153 { 3154 tag_start = arg_start; 3155 tag_end_p1 = arg_end_p1; 3156 break; 3157 } 3158 3159 else 3160 { 3161 error_line = __LINE__; 3162 saber_stop (); 3163 goto bomb_out; 3164 } 3165 3166 3167 case 'v': 3168 if (len == sizeof (".val")-1 3169 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0) 3170 { 3171 if (arg_was_number) 3172 value = arg_number; 3173 3174 /* If the value is not an integer value, it must be the 3175 name of a static or global item. Look up the name in 3176 the original symbol table to pick up the storage 3177 class, symbol type, etc. */ 3178 else 3179 { 3180 shash_t *orig_hash_ptr; /* hash within orig sym table*/ 3181 shash_t *ext_hash_ptr; /* hash within ext. sym table*/ 3182 3183 ext_hash_ptr = hash_string (arg_start, 3184 arg_end_p1 - arg_start, 3185 &ext_str_hash[0], 3186 (symint_t *) 0); 3187 3188 if (ext_hash_ptr != (shash_t *) 0 3189 && ext_hash_ptr->esym_ptr != (EXTR *) 0) 3190 eptr = ext_hash_ptr->esym_ptr; 3191 3192 orig_hash_ptr = hash_string (arg_start, 3193 arg_end_p1 - arg_start, 3194 &orig_str_hash[0], 3195 (symint_t *) 0); 3196 3197 if ((orig_hash_ptr == (shash_t *) 0 3198 || orig_hash_ptr->sym_ptr == (SYMR *) 0) 3199 && eptr == (EXTR *) 0) 3200 { 3201 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n", 3202 (int) (arg_end_p1 - arg_start), 3203 arg_start); 3204 value = 0; 3205 } 3206 else 3207 { 3208 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0 3209 && orig_hash_ptr->sym_ptr != (SYMR *) 0) 3210 ? orig_hash_ptr->sym_ptr 3211 : &eptr->asym; 3212 3213 symbol_type = (st_t) ptr->st; 3214 storage_class = (sc_t) ptr->sc; 3215 value = ptr->value; 3216 } 3217 } 3218 break; 3219 } 3220 else 3221 { 3222 error_line = __LINE__; 3223 saber_stop (); 3224 goto bomb_out; 3225 } 3226 } 3227 3228 /* Set up to find next directive. */ 3229 dir_start = arg_end_p1 + 1; 3230 } 3231 3232 3233 if (storage_class == sc_Bits) 3234 { 3235 t.bitfield = 1; 3236 t.extra_sizes = 1; 3237 } 3238 else 3239 t.extra_sizes = 0; 3240 3241 if (t.num_dims > 0) 3242 { 3243 int num_real_sizes = t.num_sizes - t.extra_sizes; 3244 int diff = t.num_dims - num_real_sizes; 3245 int i = t.num_dims - 1; 3246 int j; 3247 3248 if (num_real_sizes != 1 || diff < 0) 3249 { 3250 error_line = __LINE__; 3251 saber_stop (); 3252 goto bomb_out; 3253 } 3254 3255 /* If this is an array, make sure the same number of dimensions 3256 and sizes were passed, creating extra sizes for multiply 3257 dimensioned arrays if not passed. */ 3258 3259 if (diff) 3260 { 3261 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--) 3262 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0; 3263 3264 t.num_sizes = i + 1; 3265 for ( i--; i >= 0; i-- ) 3266 { 3267 if (t.dimensions[ i+1 ]) 3268 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ]; 3269 else 3270 t.sizes[ i ] = t.sizes[ i+1 ]; 3271 } 3272 } 3273 } 3274 3275 /* Except for enumeration members & begin/ending of scopes, put the 3276 type word in the aux. symbol table. */ 3277 3278 if (symbol_type == st_Block || symbol_type == st_End) 3279 indx = 0; 3280 3281 else if (inside_enumeration) 3282 indx = cur_file_ptr->void_type; 3283 3284 else 3285 { 3286 if (t.basic_type == bt_Struct 3287 || t.basic_type == bt_Union 3288 || t.basic_type == bt_Enum) 3289 { 3290 if (tag_start == (char *) 0) 3291 { 3292 error ("no tag specified for %.*s", 3293 (int) (name_end_p1 - name_start), 3294 name_start); 3295 return; 3296 } 3297 3298 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil, 3299 t.basic_type); 3300 } 3301 3302 if (is_function) 3303 { 3304 last_func_type_info = t; 3305 last_func_eptr = eptr; 3306 return; 3307 } 3308 3309 indx = add_aux_sym_tir (&t, 3310 hash_yes, 3311 &cur_file_ptr->thash_head[0]); 3312 } 3313 3314 3315 /* If this is an external or static symbol, update the appropriate 3316 external symbol. */ 3317 3318 if (eptr != (EXTR *) 0 3319 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0)) 3320 { 3321 eptr->ifd = cur_file_ptr->file_index; 3322 eptr->asym.index = indx; 3323 } 3324 3325 3326 /* Do any last minute adjustments that are necessary. */ 3327 switch (symbol_type) 3328 { 3329 default: 3330 break; 3331 3332 3333 /* For the beginning of structs, unions, and enumerations, the 3334 size info needs to be passed in the value field. */ 3335 3336 case st_Block: 3337 if (t.num_sizes - t.num_dims - t.extra_sizes != 1) 3338 { 3339 error_line = __LINE__; 3340 saber_stop (); 3341 goto bomb_out; 3342 } 3343 3344 else 3345 value = t.sizes[0]; 3346 3347 inside_enumeration = (t.orig_type == T_ENUM); 3348 break; 3349 3350 3351 /* For the end of structs, unions, and enumerations, omit the 3352 name which is always ".eos". This needs to be done last, so 3353 that any error reporting above gives the correct name. */ 3354 3355 case st_End: 3356 name_start = name_end_p1 = 0; 3357 value = inside_enumeration = 0; 3358 break; 3359 3360 3361 /* Members of structures and unions that aren't bitfields, need 3362 to adjust the value from a byte offset to a bit offset. 3363 Members of enumerations do not have the value adjusted, and 3364 can be distinguished by indx == indexNil. For enumerations, 3365 update the maximum enumeration value. */ 3366 3367 case st_Member: 3368 if (!t.bitfield && !inside_enumeration) 3369 value *= 8; 3370 3371 break; 3372 } 3373 3374 3375 /* Add the symbol, except for global symbols outside of functions, 3376 for which the external symbol table is fine enough. */ 3377 3378 if (eptr == (EXTR *) 0 3379 || eptr->asym.st == (int) st_Nil 3380 || cur_proc_ptr != (PDR *) 0) 3381 { 3382 symint_t isym = add_local_symbol (name_start, name_end_p1, 3383 symbol_type, storage_class, 3384 value, 3385 indx); 3386 3387 /* deal with struct, union, and enum tags. */ 3388 if (symbol_type == st_Block) 3389 { 3390 /* Create or update the tag information. */ 3391 tag_t *tag_ptr = get_tag (name_start, 3392 name_end_p1, 3393 isym, 3394 t.basic_type); 3395 3396 /* If there are any forward references, fill in the appropriate 3397 file and symbol indexes. */ 3398 3399 symint_t file_index = cur_file_ptr->file_index; 3400 forward_t *f_next = tag_ptr->forward_ref; 3401 forward_t *f_cur; 3402 3403 while (f_next != (forward_t *) 0) 3404 { 3405 f_cur = f_next; 3406 f_next = f_next->next; 3407 3408 f_cur->ifd_ptr->isym = file_index; 3409 f_cur->index_ptr->rndx.index = isym; 3410 3411 free_forward (f_cur); 3412 } 3413 3414 tag_ptr->forward_ref = (forward_t *) 0; 3415 } 3416 } 3417 3418 /* Normal return */ 3419 return; 3420 3421 /* Error return, issue message. */ 3422bomb_out: 3423 if (error_line) 3424 error ("compiler error, badly formed #.def (internal line # = %d)", error_line); 3425 else 3426 error ("compiler error, badly formed #.def"); 3427 3428 return; 3429} 3430 3431 3432/* Parse .end directives. */ 3433 3434STATIC void 3435parse_end (start) 3436 const char *start; /* start of directive */ 3437{ 3438 const char *start_func, *end_func_p1; 3439 int ch; 3440 symint_t value; 3441 FDR *orig_fdr; 3442 3443 if (cur_file_ptr == (efdr_t *) 0) 3444 { 3445 error (".end directive without a preceding .file directive"); 3446 return; 3447 } 3448 3449 if (cur_proc_ptr == (PDR *) 0) 3450 { 3451 error (".end directive without a preceding .ent directive"); 3452 return; 3453 } 3454 3455 /* Get the function name, skipping whitespace. */ 3456 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3457 ; 3458 3459 ch = *start_func; 3460 if (!IS_ASM_IDENT (ch)) 3461 { 3462 error (".end directive has no name"); 3463 return; 3464 } 3465 3466 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3467 ; 3468 3469 3470 /* Get the value field for creating the end from the original object 3471 file (which we find by locating the procedure start, and using the 3472 pointer to the end+1 block and backing up. The index points to a 3473 two word aux. symbol, whose first word is the index of the end 3474 symbol, and the second word is the type of the function return 3475 value. */ 3476 3477 orig_fdr = cur_file_ptr->orig_fdr; 3478 value = 0; 3479 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0) 3480 value = cur_oproc_end->value; 3481 3482 else 3483 error ("cannot find .end block for %.*s", 3484 (int) (end_func_p1 - start_func), start_func); 3485 3486 (void) add_local_symbol (start_func, end_func_p1, 3487 st_End, sc_Text, 3488 value, 3489 (symint_t) 0); 3490 3491 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0; 3492} 3493 3494 3495/* Parse .ent directives. */ 3496 3497STATIC void 3498parse_ent (start) 3499 const char *start; /* start of directive */ 3500{ 3501 const char *start_func, *end_func_p1; 3502 int ch; 3503 3504 if (cur_file_ptr == (efdr_t *) 0) 3505 { 3506 error (".ent directive without a preceding .file directive"); 3507 return; 3508 } 3509 3510 if (cur_proc_ptr != (PDR *) 0) 3511 { 3512 error ("second .ent directive found before .end directive"); 3513 return; 3514 } 3515 3516 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3517 ; 3518 3519 ch = *start_func; 3520 if (!IS_ASM_IDENT (ch)) 3521 { 3522 error (".ent directive has no name"); 3523 return; 3524 } 3525 3526 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3527 ; 3528 3529 (void) add_procedure (start_func, end_func_p1); 3530} 3531 3532 3533/* Parse .file directives. */ 3534 3535STATIC void 3536parse_file (start) 3537 const char *start; /* start of directive */ 3538{ 3539 char *p; 3540 char *start_name, *end_name_p1; 3541 3542 (void) strtol (start, &p, 0); 3543 if (start == p 3544 || (start_name = strchr (p, '"')) == (char *) 0 3545 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0) 3546 { 3547 error ("invalid .file directive"); 3548 return; 3549 } 3550 3551 if (cur_proc_ptr != (PDR *) 0) 3552 { 3553 error ("no way to handle .file within .ent/.end section"); 3554 return; 3555 } 3556 3557 add_file (start_name, end_name_p1); 3558} 3559 3560 3561/* Make sure the @stabs symbol is emitted. */ 3562 3563static void 3564mark_stabs (start) 3565 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */ 3566{ 3567 if (!stabs_seen) 3568 { 3569 /* Add a dummy @stabs symbol. */ 3570 stabs_seen = 1; 3571 (void) add_local_symbol (stabs_symbol, 3572 stabs_symbol + sizeof (stabs_symbol), 3573 stNil, scInfo, -1, MIPS_MARK_STAB (0)); 3574 3575 } 3576} 3577 3578 3579/* Parse .stabs directives. 3580 3581 .stabs directives have five fields: 3582 "string" a string, encoding the type information. 3583 code a numeric code, defined in <stab.h> 3584 0 a zero 3585 0 a zero or line number 3586 value a numeric value or an address. 3587 3588 If the value is relocatable, we transform this into: 3589 iss points as an index into string space 3590 value value from lookup of the name 3591 st st from lookup of the name 3592 sc sc from lookup of the name 3593 index code|CODE_MASK 3594 3595 If the value is not relocatable, we transform this into: 3596 iss points as an index into string space 3597 value value 3598 st st_Nil 3599 sc sc_Nil 3600 index code|CODE_MASK 3601 3602 .stabn directives have four fields (string is null): 3603 code a numeric code, defined in <stab.h> 3604 0 a zero 3605 0 a zero or a line number 3606 value a numeric value or an address. */ 3607 3608STATIC void 3609parse_stabs_common (string_start, string_end, rest) 3610 const char *string_start; /* start of string or NULL */ 3611 const char *string_end; /* end+1 of string or NULL */ 3612 const char *rest; /* rest of the directive. */ 3613{ 3614 efdr_t *save_file_ptr = cur_file_ptr; 3615 symint_t code; 3616 symint_t value; 3617 char *p; 3618 st_t st; 3619 sc_t sc; 3620 int ch; 3621 3622 if (stabs_seen == 0) 3623 mark_stabs (""); 3624 3625 /* Read code from stabs. */ 3626 if (!ISDIGIT (*rest)) 3627 { 3628 error ("invalid .stabs/.stabn directive, code is non-numeric"); 3629 return; 3630 } 3631 3632 code = strtol (rest, &p, 0); 3633 3634 /* Line number stabs are handled differently, since they have two values, 3635 the line number and the address of the label. We use the index field 3636 (aka code) to hold the line number, and the value field to hold the 3637 address. The symbol type is st_Label, which should be different from 3638 the other stabs, so that gdb can recognize it. */ 3639 3640 if (code == (int) N_SLINE) 3641 { 3642 SYMR *sym_ptr, dummy_symr; 3643 shash_t *shash_ptr; 3644 3645 /* Skip ,0, */ 3646 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3])) 3647 { 3648 error ("invalid line number .stabs/.stabn directive"); 3649 return; 3650 } 3651 3652 code = strtol (p+3, &p, 0); 3653 ch = *++p; 3654 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch)) 3655 { 3656 error ("invalid line number .stabs/.stabn directive"); 3657 return; 3658 } 3659 3660 dummy_symr.index = code; 3661 if (dummy_symr.index != code) 3662 { 3663 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)", 3664 code); 3665 3666 return; 3667 } 3668 3669 shash_ptr = hash_string (p, 3670 strlen (p) - 1, 3671 &orig_str_hash[0], 3672 (symint_t *) 0); 3673 3674 if (shash_ptr == (shash_t *) 0 3675 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3676 { 3677 error ("invalid .stabs/.stabn directive, value not found"); 3678 return; 3679 } 3680 3681 if ((st_t) sym_ptr->st != st_Label) 3682 { 3683 error ("invalid line number .stabs/.stabn directive"); 3684 return; 3685 } 3686 3687 st = st_Label; 3688 sc = (sc_t) sym_ptr->sc; 3689 value = sym_ptr->value; 3690 } 3691 else 3692 { 3693 /* Skip ,<num>,<num>, */ 3694 if (*p++ != ',') 3695 goto failure; 3696 for (; ISDIGIT (*p); p++) 3697 ; 3698 if (*p++ != ',') 3699 goto failure; 3700 for (; ISDIGIT (*p); p++) 3701 ; 3702 if (*p++ != ',') 3703 goto failure; 3704 ch = *p; 3705 if (!IS_ASM_IDENT (ch) && ch != '-') 3706 { 3707 failure: 3708 error ("invalid .stabs/.stabn directive, bad character"); 3709 return; 3710 } 3711 3712 if (ISDIGIT (ch) || ch == '-') 3713 { 3714 st = st_Nil; 3715 sc = sc_Nil; 3716 value = strtol (p, &p, 0); 3717 if (*p != '\n') 3718 { 3719 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3720 return; 3721 } 3722 } 3723 else if (!IS_ASM_IDENT (ch)) 3724 { 3725 error ("invalid .stabs/.stabn directive, bad character"); 3726 return; 3727 } 3728 else 3729 { 3730 SYMR *sym_ptr; 3731 shash_t *shash_ptr; 3732 const char *start, *end_p1; 3733 3734 start = p; 3735 if ((end_p1 = strchr (start, '+')) == (char *) 0) 3736 { 3737 if ((end_p1 = strchr (start, '-')) == (char *) 0) 3738 end_p1 = start + strlen (start) - 1; 3739 } 3740 3741 shash_ptr = hash_string (start, 3742 end_p1 - start, 3743 &orig_str_hash[0], 3744 (symint_t *) 0); 3745 3746 if (shash_ptr == (shash_t *) 0 3747 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3748 { 3749 shash_ptr = hash_string (start, 3750 end_p1 - start, 3751 &ext_str_hash[0], 3752 (symint_t *) 0); 3753 3754 if (shash_ptr == (shash_t *) 0 3755 || shash_ptr->esym_ptr == (EXTR *) 0) 3756 { 3757 error ("invalid .stabs/.stabn directive, value not found"); 3758 return; 3759 } 3760 else 3761 sym_ptr = &(shash_ptr->esym_ptr->asym); 3762 } 3763 3764 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */ 3765 if (code == (int) N_LBRAC || code == (int) N_RBRAC) 3766 { 3767 sc = scNil; 3768 st = stNil; 3769 } 3770 else 3771 { 3772 sc = (sc_t) sym_ptr->sc; 3773 st = (st_t) sym_ptr->st; 3774 } 3775 value = sym_ptr->value; 3776 3777 ch = *end_p1++; 3778 if (ch != '\n') 3779 { 3780 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-')) 3781 || ((ch != '+') && (ch != '-'))) 3782 { 3783 error ("invalid .stabs/.stabn directive, badly formed value"); 3784 return; 3785 } 3786 if (ch == '+') 3787 value += strtol (end_p1, &p, 0); 3788 else if (ch == '-') 3789 value -= strtol (end_p1, &p, 0); 3790 3791 if (*p != '\n') 3792 { 3793 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3794 return; 3795 } 3796 } 3797 } 3798 code = MIPS_MARK_STAB (code); 3799 } 3800 3801 (void) add_local_symbol (string_start, string_end, st, sc, value, code); 3802 /* Restore normal file type. */ 3803 cur_file_ptr = save_file_ptr; 3804} 3805 3806 3807STATIC void 3808parse_stabs (start) 3809 const char *start; /* start of directive */ 3810{ 3811 const char *end = strchr (start+1, '"'); 3812 3813 if (*start != '"' || end == (const char *) 0 || end[1] != ',') 3814 { 3815 error ("invalid .stabs directive, no string"); 3816 return; 3817 } 3818 3819 parse_stabs_common (start+1, end, end+2); 3820} 3821 3822 3823STATIC void 3824parse_stabn (start) 3825 const char *start; /* start of directive */ 3826{ 3827 parse_stabs_common ((const char *) 0, (const char *) 0, start); 3828} 3829 3830 3831/* Parse the input file, and write the lines to the output file 3832 if needed. */ 3833 3834STATIC void 3835parse_input () 3836{ 3837 char *p; 3838 Size_t i; 3839 thead_t *ptag_head; 3840 tag_t *ptag; 3841 tag_t *ptag_next; 3842 3843 if (debug) 3844 fprintf (stderr, "\tinput\n"); 3845 3846 /* Add a dummy scope block around the entire compilation unit for 3847 structures defined outside of blocks. */ 3848 ptag_head = allocate_thead (); 3849 ptag_head->first_tag = 0; 3850 ptag_head->prev = cur_tag_head; 3851 cur_tag_head = ptag_head; 3852 3853 while ((p = read_line ()) != (char *) 0) 3854 { 3855 /* Skip leading blanks */ 3856 while (ISSPACE ((unsigned char)*p)) 3857 p++; 3858 3859 /* See if it's a directive we handle. If so, dispatch handler. */ 3860 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++) 3861 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0 3862 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len]))) 3863 { 3864 p += pseudo_ops[i].len; /* skip to first argument */ 3865 while (ISSPACE ((unsigned char)*p)) 3866 p++; 3867 3868 (*pseudo_ops[i].func)( p ); 3869 break; 3870 } 3871 } 3872 3873 /* Process any tags at global level. */ 3874 ptag_head = cur_tag_head; 3875 cur_tag_head = ptag_head->prev; 3876 3877 for (ptag = ptag_head->first_tag; 3878 ptag != (tag_t *) 0; 3879 ptag = ptag_next) 3880 { 3881 if (ptag->forward_ref != (forward_t *) 0) 3882 add_unknown_tag (ptag); 3883 3884 ptag_next = ptag->same_block; 3885 ptag->hash_ptr->tag_ptr = ptag->same_name; 3886 free_tag (ptag); 3887 } 3888 3889 free_thead (ptag_head); 3890 3891} 3892 3893 3894/* Update the global headers with the final offsets in preparation 3895 to write out the .T file. */ 3896 3897STATIC void 3898update_headers () 3899{ 3900 symint_t i; 3901 efdr_t *file_ptr; 3902 3903 /* Set up the symbolic header. */ 3904 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 3905 symbolic_header.magic = orig_sym_hdr.magic; 3906 symbolic_header.vstamp = orig_sym_hdr.vstamp; 3907 3908 /* Set up global counts. */ 3909 symbolic_header.issExtMax = ext_strings.num_allocated; 3910 symbolic_header.idnMax = dense_num.num_allocated; 3911 symbolic_header.ifdMax = file_desc.num_allocated; 3912 symbolic_header.iextMax = ext_symbols.num_allocated; 3913 symbolic_header.ilineMax = orig_sym_hdr.ilineMax; 3914 symbolic_header.ioptMax = orig_sym_hdr.ioptMax; 3915 symbolic_header.cbLine = orig_sym_hdr.cbLine; 3916 symbolic_header.crfd = orig_sym_hdr.crfd; 3917 3918 3919 /* Loop through each file, figuring out how many local syms, 3920 line numbers, etc. there are. Also, put out end symbol 3921 for the filename. */ 3922 3923 for (file_ptr = first_file; 3924 file_ptr != (efdr_t *) 0; 3925 file_ptr = file_ptr->next_file) 3926 { 3927 SYMR *sym_start; 3928 SYMR *sym; 3929 SYMR *sym_end_p1; 3930 FDR *fd_ptr = file_ptr->orig_fdr; 3931 3932 cur_file_ptr = file_ptr; 3933 3934 /* Copy st_Static symbols from the original local symbol table if 3935 they did not get added to the new local symbol table. 3936 This happens with stabs-in-ecoff or if the source file is 3937 compiled without debugging. */ 3938 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 3939 sym_end_p1 = sym_start + fd_ptr->csym; 3940 for (sym = sym_start; sym < sym_end_p1; sym++) 3941 { 3942 if ((st_t) sym->st == st_Static) 3943 { 3944 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 3945 Size_t len = strlen (str); 3946 shash_t *hash_ptr; 3947 3948 /* Ignore internal labels. */ 3949 if (str[0] == '$' && str[1] == 'L') 3950 continue; 3951 hash_ptr = hash_string (str, 3952 (Ptrdiff_t) len, 3953 &file_ptr->shash_head[0], 3954 (symint_t *) 0); 3955 if (hash_ptr == (shash_t *) 0) 3956 { 3957 (void) add_local_symbol (str, str + len, 3958 (st_t) sym->st, (sc_t) sym->sc, 3959 (symint_t) sym->value, 3960 (symint_t) indexNil); 3961 } 3962 } 3963 } 3964 (void) add_local_symbol ((const char *) 0, (const char *) 0, 3965 st_End, sc_Text, 3966 (symint_t) 0, 3967 (symint_t) 0); 3968 3969 file_ptr->fdr.cpd = file_ptr->procs.num_allocated; 3970 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax; 3971 symbolic_header.ipdMax += file_ptr->fdr.cpd; 3972 3973 file_ptr->fdr.csym = file_ptr->symbols.num_allocated; 3974 file_ptr->fdr.isymBase = symbolic_header.isymMax; 3975 symbolic_header.isymMax += file_ptr->fdr.csym; 3976 3977 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated; 3978 file_ptr->fdr.iauxBase = symbolic_header.iauxMax; 3979 symbolic_header.iauxMax += file_ptr->fdr.caux; 3980 3981 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated; 3982 file_ptr->fdr.issBase = symbolic_header.issMax; 3983 symbolic_header.issMax += file_ptr->fdr.cbSs; 3984 } 3985 3986#ifndef ALIGN_SYMTABLE_OFFSET 3987#define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET) 3988#endif 3989 3990 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3991 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */ 3992 if (i > 0) 3993 { 3994 symbolic_header.cbLineOffset = file_offset; 3995 file_offset += i; 3996 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3997 } 3998 3999 i = symbolic_header.ioptMax; /* optimization symbols */ 4000 if (((long) i) > 0) 4001 { 4002 symbolic_header.cbOptOffset = file_offset; 4003 file_offset += i * sizeof (OPTR); 4004 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4005 } 4006 4007 i = symbolic_header.idnMax; /* dense numbers */ 4008 if (i > 0) 4009 { 4010 symbolic_header.cbDnOffset = file_offset; 4011 file_offset += i * sizeof (DNR); 4012 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4013 } 4014 4015 i = symbolic_header.ipdMax; /* procedure tables */ 4016 if (i > 0) 4017 { 4018 symbolic_header.cbPdOffset = file_offset; 4019 file_offset += i * sizeof (PDR); 4020 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4021 } 4022 4023 i = symbolic_header.isymMax; /* local symbols */ 4024 if (i > 0) 4025 { 4026 symbolic_header.cbSymOffset = file_offset; 4027 file_offset += i * sizeof (SYMR); 4028 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4029 } 4030 4031 i = symbolic_header.iauxMax; /* aux syms. */ 4032 if (i > 0) 4033 { 4034 symbolic_header.cbAuxOffset = file_offset; 4035 file_offset += i * sizeof (TIR); 4036 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4037 } 4038 4039 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */ 4040 if (i > 0) 4041 { 4042 symbolic_header.cbSsOffset = file_offset; 4043 file_offset += i; 4044 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4045 } 4046 4047 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */ 4048 if (i > 0) 4049 { 4050 symbolic_header.cbSsExtOffset = file_offset; 4051 file_offset += i; 4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4053 } 4054 4055 i = symbolic_header.ifdMax; /* file tables */ 4056 if (i > 0) 4057 { 4058 symbolic_header.cbFdOffset = file_offset; 4059 file_offset += i * sizeof (FDR); 4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4061 } 4062 4063 i = symbolic_header.crfd; /* relative file descriptors */ 4064 if (i > 0) 4065 { 4066 symbolic_header.cbRfdOffset = file_offset; 4067 file_offset += i * sizeof (symint_t); 4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4069 } 4070 4071 i = symbolic_header.iextMax; /* external symbols */ 4072 if (i > 0) 4073 { 4074 symbolic_header.cbExtOffset = file_offset; 4075 file_offset += i * sizeof (EXTR); 4076 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 4077 } 4078} 4079 4080 4081/* Write out a varray at a given location. */ 4082 4083STATIC void 4084write_varray (vp, offset, str) 4085 varray_t *vp; /* virtual array */ 4086 off_t offset; /* offset to write varray to */ 4087 const char *str; /* string to print out when tracing */ 4088{ 4089 int num_write, sys_write; 4090 vlinks_t *ptr; 4091 4092 if (vp->num_allocated == 0) 4093 return; 4094 4095 if (debug) 4096 { 4097 fputs ("\twarray\tvp = ", stderr); 4098 fprintf (stderr, HOST_PTR_PRINTF, (PTR) vp); 4099 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n", 4100 (unsigned long) offset, vp->num_allocated * vp->object_size, str); 4101 } 4102 4103 if (file_offset != offset 4104 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 4105 pfatal_with_name (object_name); 4106 4107 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next) 4108 { 4109 num_write = (ptr->next == (vlinks_t *) 0) 4110 ? vp->objects_last_page * vp->object_size 4111 : vp->objects_per_page * vp->object_size; 4112 4113 sys_write = fwrite ((PTR) ptr->datum, 1, num_write, object_stream); 4114 if (sys_write <= 0) 4115 pfatal_with_name (object_name); 4116 4117 else if (sys_write != num_write) 4118 fatal ("wrote %d bytes to %s, system returned %d", 4119 num_write, 4120 object_name, 4121 sys_write); 4122 4123 file_offset += num_write; 4124 } 4125} 4126 4127 4128/* Write out the symbol table in the object file. */ 4129 4130STATIC void 4131write_object () 4132{ 4133 int sys_write; 4134 efdr_t *file_ptr; 4135 off_t offset; 4136 4137 if (debug) 4138 { 4139 fputs ("\n\twrite\tvp = ", stderr); 4140 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &symbolic_header); 4141 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n", 4142 0, (unsigned long) sizeof (symbolic_header), "symbolic header"); 4143 } 4144 4145 sys_write = fwrite ((PTR) &symbolic_header, 4146 1, 4147 sizeof (symbolic_header), 4148 object_stream); 4149 4150 if (sys_write < 0) 4151 pfatal_with_name (object_name); 4152 4153 else if (sys_write != sizeof (symbolic_header)) 4154 fatal ("wrote %d bytes to %s, system returned %d", 4155 (int) sizeof (symbolic_header), 4156 object_name, 4157 sys_write); 4158 4159 4160 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 4161 4162 if (symbolic_header.cbLine > 0) /* line numbers */ 4163 { 4164 long sys_write; 4165 4166 if (file_offset != symbolic_header.cbLineOffset 4167 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0) 4168 pfatal_with_name (object_name); 4169 4170 if (debug) 4171 { 4172 fputs ("\twrite\tvp = ", stderr); 4173 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_linenum); 4174 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n", 4175 (long) symbolic_header.cbLineOffset, 4176 (long) symbolic_header.cbLine, "Line numbers"); 4177 } 4178 4179 sys_write = fwrite ((PTR) orig_linenum, 4180 1, 4181 symbolic_header.cbLine, 4182 object_stream); 4183 4184 if (sys_write <= 0) 4185 pfatal_with_name (object_name); 4186 4187 else if (sys_write != symbolic_header.cbLine) 4188 fatal ("wrote %ld bytes to %s, system returned %ld", 4189 (long) symbolic_header.cbLine, 4190 object_name, 4191 sys_write); 4192 4193 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine; 4194 } 4195 4196 if (symbolic_header.ioptMax > 0) /* optimization symbols */ 4197 { 4198 long sys_write; 4199 long num_write = symbolic_header.ioptMax * sizeof (OPTR); 4200 4201 if (file_offset != symbolic_header.cbOptOffset 4202 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0) 4203 pfatal_with_name (object_name); 4204 4205 if (debug) 4206 { 4207 fputs ("\twrite\tvp = ", stderr); 4208 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_opt_syms); 4209 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n", 4210 (long) symbolic_header.cbOptOffset, 4211 num_write, "Optimizer symbols"); 4212 } 4213 4214 sys_write = fwrite ((PTR) orig_opt_syms, 4215 1, 4216 num_write, 4217 object_stream); 4218 4219 if (sys_write <= 0) 4220 pfatal_with_name (object_name); 4221 4222 else if (sys_write != num_write) 4223 fatal ("wrote %ld bytes to %s, system returned %ld", 4224 num_write, 4225 object_name, 4226 sys_write); 4227 4228 file_offset = symbolic_header.cbOptOffset + num_write; 4229 } 4230 4231 if (symbolic_header.idnMax > 0) /* dense numbers */ 4232 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers"); 4233 4234 if (symbolic_header.ipdMax > 0) /* procedure tables */ 4235 { 4236 offset = symbolic_header.cbPdOffset; 4237 for (file_ptr = first_file; 4238 file_ptr != (efdr_t *) 0; 4239 file_ptr = file_ptr->next_file) 4240 { 4241 write_varray (&file_ptr->procs, offset, "Procedure tables"); 4242 offset = file_offset; 4243 } 4244 } 4245 4246 if (symbolic_header.isymMax > 0) /* local symbols */ 4247 { 4248 offset = symbolic_header.cbSymOffset; 4249 for (file_ptr = first_file; 4250 file_ptr != (efdr_t *) 0; 4251 file_ptr = file_ptr->next_file) 4252 { 4253 write_varray (&file_ptr->symbols, offset, "Local symbols"); 4254 offset = file_offset; 4255 } 4256 } 4257 4258 if (symbolic_header.iauxMax > 0) /* aux symbols */ 4259 { 4260 offset = symbolic_header.cbAuxOffset; 4261 for (file_ptr = first_file; 4262 file_ptr != (efdr_t *) 0; 4263 file_ptr = file_ptr->next_file) 4264 { 4265 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols"); 4266 offset = file_offset; 4267 } 4268 } 4269 4270 if (symbolic_header.issMax > 0) /* local strings */ 4271 { 4272 offset = symbolic_header.cbSsOffset; 4273 for (file_ptr = first_file; 4274 file_ptr != (efdr_t *) 0; 4275 file_ptr = file_ptr->next_file) 4276 { 4277 write_varray (&file_ptr->strings, offset, "Local strings"); 4278 offset = file_offset; 4279 } 4280 } 4281 4282 if (symbolic_header.issExtMax > 0) /* external strings */ 4283 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings"); 4284 4285 if (symbolic_header.ifdMax > 0) /* file tables */ 4286 { 4287 offset = symbolic_header.cbFdOffset; 4288 if (file_offset != offset 4289 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 4290 pfatal_with_name (object_name); 4291 4292 file_offset = offset; 4293 for (file_ptr = first_file; 4294 file_ptr != (efdr_t *) 0; 4295 file_ptr = file_ptr->next_file) 4296 { 4297 if (debug) 4298 { 4299 fputs ("\twrite\tvp = ", stderr); 4300 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &file_ptr->fdr); 4301 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n", 4302 file_offset, (unsigned long) sizeof (FDR), 4303 "File header"); 4304 } 4305 4306 sys_write = fwrite (&file_ptr->fdr, 4307 1, 4308 sizeof (FDR), 4309 object_stream); 4310 4311 if (sys_write < 0) 4312 pfatal_with_name (object_name); 4313 4314 else if (sys_write != sizeof (FDR)) 4315 fatal ("wrote %d bytes to %s, system returned %d", 4316 (int) sizeof (FDR), 4317 object_name, 4318 sys_write); 4319 4320 file_offset = offset += sizeof (FDR); 4321 } 4322 } 4323 4324 if (symbolic_header.crfd > 0) /* relative file descriptors */ 4325 { 4326 long sys_write; 4327 symint_t num_write = symbolic_header.crfd * sizeof (symint_t); 4328 4329 if (file_offset != symbolic_header.cbRfdOffset 4330 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0) 4331 pfatal_with_name (object_name); 4332 4333 if (debug) 4334 { 4335 fputs ("\twrite\tvp = ", stderr); 4336 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_rfds); 4337 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n", 4338 (long) symbolic_header.cbRfdOffset, 4339 num_write, "Relative file descriptors"); 4340 } 4341 4342 sys_write = fwrite (orig_rfds, 4343 1, 4344 num_write, 4345 object_stream); 4346 4347 if (sys_write <= 0) 4348 pfatal_with_name (object_name); 4349 4350 else if (sys_write != (long) num_write) 4351 fatal ("wrote %lu bytes to %s, system returned %ld", 4352 num_write, 4353 object_name, 4354 sys_write); 4355 4356 file_offset = symbolic_header.cbRfdOffset + num_write; 4357 } 4358 4359 if (symbolic_header.issExtMax > 0) /* external symbols */ 4360 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols"); 4361 4362 if (fclose (object_stream) != 0) 4363 pfatal_with_name (object_name); 4364} 4365 4366 4367/* Read some bytes at a specified location, and return a pointer. */ 4368 4369STATIC page_t * 4370read_seek (size, offset, str) 4371 Size_t size; /* # bytes to read */ 4372 off_t offset; /* offset to read at */ 4373 const char *str; /* name for tracing */ 4374{ 4375 page_t *ptr; 4376 long sys_read = 0; 4377 4378 if (size == 0) /* nothing to read */ 4379 return (page_t *) 0; 4380 4381 if (debug) 4382 fprintf (stderr, 4383 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n", 4384 (unsigned long) size, (unsigned long) offset, file_offset, str); 4385 4386#ifndef MALLOC_CHECK 4387 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE); 4388#else 4389 ptr = (page_t *) xcalloc (1, size); 4390#endif 4391 4392 /* If we need to seek, and the distance is nearby, just do some reads, 4393 to speed things up. */ 4394 if (file_offset != offset) 4395 { 4396 symint_t difference = offset - file_offset; 4397 4398 if (difference < 8) 4399 { 4400 char small_buffer[8]; 4401 4402 sys_read = fread (small_buffer, 1, difference, obj_in_stream); 4403 if (sys_read <= 0) 4404 pfatal_with_name (obj_in_name); 4405 4406 if ((symint_t) sys_read != difference) 4407 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4408 (unsigned long) size, 4409 obj_in_name, 4410 sys_read); 4411 } 4412 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0) 4413 pfatal_with_name (obj_in_name); 4414 } 4415 4416 sys_read = fread ((PTR) ptr, 1, size, obj_in_stream); 4417 if (sys_read <= 0) 4418 pfatal_with_name (obj_in_name); 4419 4420 if (sys_read != (long) size) 4421 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4422 (unsigned long) size, 4423 obj_in_name, 4424 sys_read); 4425 4426 file_offset = offset + size; 4427 4428 if (file_offset > max_file_offset) 4429 max_file_offset = file_offset; 4430 4431 return ptr; 4432} 4433 4434 4435/* Read the existing object file (and copy to the output object file 4436 if it is different from the input object file), and remove the old 4437 symbol table. */ 4438 4439STATIC void 4440copy_object () 4441{ 4442 char buffer[ PAGE_SIZE ]; 4443 int sys_read; 4444 int remaining; 4445 int num_write; 4446 int sys_write; 4447 int fd, es; 4448 int delete_ifd = 0; 4449 int *remap_file_number; 4450 struct stat stat_buf; 4451 4452 if (debug) 4453 fprintf (stderr, "\tcopy\n"); 4454 4455 if (fstat (fileno (obj_in_stream), &stat_buf) != 0 4456 || fseek (obj_in_stream, 0L, SEEK_SET) != 0) 4457 pfatal_with_name (obj_in_name); 4458 4459 sys_read = fread ((PTR) &orig_file_header, 4460 1, 4461 sizeof (struct filehdr), 4462 obj_in_stream); 4463 4464 if (sys_read < 0) 4465 pfatal_with_name (obj_in_name); 4466 4467 else if (sys_read == 0 && feof (obj_in_stream)) 4468 return; /* create a .T file sans file header */ 4469 4470 else if (sys_read < (int) sizeof (struct filehdr)) 4471 fatal ("wanted to read %d bytes from %s, system returned %d", 4472 (int) sizeof (struct filehdr), 4473 obj_in_name, 4474 sys_read); 4475 4476 4477 if (orig_file_header.f_nsyms != sizeof (HDRR)) 4478 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)", 4479 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR)); 4480 4481 4482 /* Read in the current symbolic header. */ 4483 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0) 4484 pfatal_with_name (input_name); 4485 4486 sys_read = fread ((PTR) &orig_sym_hdr, 4487 1, 4488 sizeof (orig_sym_hdr), 4489 obj_in_stream); 4490 4491 if (sys_read < 0) 4492 pfatal_with_name (object_name); 4493 4494 else if (sys_read < (int) sizeof (struct filehdr)) 4495 fatal ("wanted to read %d bytes from %s, system returned %d", 4496 (int) sizeof (struct filehdr), 4497 obj_in_name, 4498 sys_read); 4499 4500 4501 /* Read in each of the sections if they exist in the object file. 4502 We read things in in the order the mips assembler creates the 4503 sections, so in theory no extra seeks are done. 4504 4505 For simplicity sake, round each read up to a page boundary, 4506 we may want to revisit this later.... */ 4507 4508 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr); 4509 4510 if (orig_sym_hdr.cbLine > 0) /* line numbers */ 4511 orig_linenum = (char *) read_seek ((Size_t) orig_sym_hdr.cbLine, 4512 orig_sym_hdr.cbLineOffset, 4513 "Line numbers"); 4514 4515 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */ 4516 orig_procs = (PDR *) read_seek ((Size_t) orig_sym_hdr.ipdMax * sizeof (PDR), 4517 orig_sym_hdr.cbPdOffset, 4518 "Procedure tables"); 4519 4520 if (orig_sym_hdr.isymMax > 0) /* local symbols */ 4521 orig_local_syms = (SYMR *) read_seek ((Size_t) orig_sym_hdr.isymMax * sizeof (SYMR), 4522 orig_sym_hdr.cbSymOffset, 4523 "Local symbols"); 4524 4525 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */ 4526 orig_aux_syms = (AUXU *) read_seek ((Size_t) orig_sym_hdr.iauxMax * sizeof (AUXU), 4527 orig_sym_hdr.cbAuxOffset, 4528 "Aux. symbols"); 4529 4530 if (orig_sym_hdr.issMax > 0) /* local strings */ 4531 orig_local_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issMax, 4532 orig_sym_hdr.cbSsOffset, 4533 "Local strings"); 4534 4535 if (orig_sym_hdr.issExtMax > 0) /* external strings */ 4536 orig_ext_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issExtMax, 4537 orig_sym_hdr.cbSsExtOffset, 4538 "External strings"); 4539 4540 if (orig_sym_hdr.ifdMax > 0) /* file tables */ 4541 orig_files = (FDR *) read_seek ((Size_t) orig_sym_hdr.ifdMax * sizeof (FDR), 4542 orig_sym_hdr.cbFdOffset, 4543 "File tables"); 4544 4545 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */ 4546 orig_rfds = (symint_t *) read_seek ((Size_t) orig_sym_hdr.crfd * sizeof (symint_t), 4547 orig_sym_hdr.cbRfdOffset, 4548 "Relative file descriptors"); 4549 4550 if (orig_sym_hdr.issExtMax > 0) /* external symbols */ 4551 orig_ext_syms = (EXTR *) read_seek ((Size_t) orig_sym_hdr.iextMax * sizeof (EXTR), 4552 orig_sym_hdr.cbExtOffset, 4553 "External symbols"); 4554 4555 if (orig_sym_hdr.idnMax > 0) /* dense numbers */ 4556 { 4557 orig_dense = (DNR *) read_seek ((Size_t) orig_sym_hdr.idnMax * sizeof (DNR), 4558 orig_sym_hdr.cbDnOffset, 4559 "Dense numbers"); 4560 4561 add_bytes (&dense_num, (char *) orig_dense, (Size_t) orig_sym_hdr.idnMax); 4562 } 4563 4564 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */ 4565 orig_opt_syms = (OPTR *) read_seek ((Size_t) orig_sym_hdr.ioptMax * sizeof (OPTR), 4566 orig_sym_hdr.cbOptOffset, 4567 "Optimizer symbols"); 4568 4569 4570 4571 /* Abort if the symbol table is not last. */ 4572 if (max_file_offset != stat_buf.st_size) 4573 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld", 4574 max_file_offset, 4575 (long) stat_buf.st_size); 4576 4577 4578 /* If the first original file descriptor is a dummy which the assembler 4579 put out, but there are no symbols in it, skip it now. */ 4580 if (orig_sym_hdr.ifdMax > 1 4581 && orig_files->csym == 2 4582 && orig_files->caux == 0) 4583 { 4584 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss); 4585 char *suffix = strrchr (filename, '.'); 4586 4587 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0) 4588 delete_ifd = 1; 4589 } 4590 4591 4592 /* Create array to map original file numbers to the new file numbers 4593 (in case there are duplicate filenames, we collapse them into one 4594 file section, the MIPS assembler may or may not collapse them). */ 4595 4596 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax); 4597 4598 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4599 { 4600 FDR *fd_ptr = ORIG_FILES (fd); 4601 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4602 4603 /* file support itself. */ 4604 add_file (filename, filename + strlen (filename)); 4605 remap_file_number[fd] = cur_file_ptr->file_index; 4606 } 4607 4608 if (delete_ifd > 0) /* just in case */ 4609 remap_file_number[0] = remap_file_number[1]; 4610 4611 4612 /* Loop, adding each of the external symbols. These must be in 4613 order or otherwise we would have to change the relocation 4614 entries. We don't just call add_bytes, because we need to have 4615 the names put into the external hash table. We set the type to 4616 'void' for now, and parse_def will fill in the correct type if it 4617 is in the symbol table. We must add the external symbols before 4618 the locals, since the locals do lookups against the externals. */ 4619 4620 if (debug) 4621 fprintf (stderr, "\tehash\n"); 4622 4623 for (es = 0; es < orig_sym_hdr.iextMax; es++) 4624 { 4625 EXTR *eptr = orig_ext_syms + es; 4626 unsigned ifd = eptr->ifd; 4627 4628 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax) 4629 ? remap_file_number[ ifd ] : ifd ); 4630 } 4631 4632 4633 /* For each of the files in the object file, copy the symbols, and such 4634 into the varrays for the new object file. */ 4635 4636 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4637 { 4638 FDR *fd_ptr = ORIG_FILES (fd); 4639 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4640 SYMR *sym_start; 4641 SYMR *sym; 4642 SYMR *sym_end_p1; 4643 PDR *proc_start; 4644 PDR *proc; 4645 PDR *proc_end_p1; 4646 4647 /* file support itself. */ 4648 add_file (filename, filename + strlen (filename)); 4649 cur_file_ptr->orig_fdr = fd_ptr; 4650 4651 /* Copy stuff that's just passed through (such as line #'s) */ 4652 cur_file_ptr->fdr.adr = fd_ptr->adr; 4653 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase; 4654 cur_file_ptr->fdr.cline = fd_ptr->cline; 4655 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase; 4656 cur_file_ptr->fdr.crfd = fd_ptr->crfd; 4657 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset; 4658 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine; 4659 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge; 4660 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin; 4661 cur_file_ptr->fdr.glevel = fd_ptr->glevel; 4662 4663 if (debug) 4664 fprintf (stderr, "\thash\tstart, filename %s\n", filename); 4665 4666 /* For each of the static and global symbols defined, add them 4667 to the hash table of original symbols, so we can look up 4668 their values. */ 4669 4670 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 4671 sym_end_p1 = sym_start + fd_ptr->csym; 4672 for (sym = sym_start; sym < sym_end_p1; sym++) 4673 { 4674 switch ((st_t) sym->st) 4675 { 4676 default: 4677 break; 4678 4679 case st_Global: 4680 case st_Static: 4681 case st_Label: 4682 case st_Proc: 4683 case st_StaticProc: 4684 { 4685 auto symint_t hash_index; 4686 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4687 Size_t len = strlen (str); 4688 shash_t *shash_ptr = hash_string (str, 4689 (Ptrdiff_t) len, 4690 &orig_str_hash[0], 4691 &hash_index); 4692 4693 if (shash_ptr != (shash_t *) 0) 4694 error ("internal error, %s is already in original symbol table", str); 4695 4696 else 4697 { 4698 shash_ptr = allocate_shash (); 4699 shash_ptr->next = orig_str_hash[hash_index]; 4700 orig_str_hash[hash_index] = shash_ptr; 4701 4702 shash_ptr->len = len; 4703 shash_ptr->indx = indexNil; 4704 shash_ptr->string = str; 4705 shash_ptr->sym_ptr = sym; 4706 } 4707 } 4708 break; 4709 4710 case st_End: 4711 if ((sc_t) sym->sc == sc_Text) 4712 { 4713 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4714 4715 if (*str != '\0') 4716 { 4717 Size_t len = strlen (str); 4718 shash_t *shash_ptr = hash_string (str, 4719 (Ptrdiff_t) len, 4720 &orig_str_hash[0], 4721 (symint_t *) 0); 4722 4723 if (shash_ptr != (shash_t *) 0) 4724 shash_ptr->end_ptr = sym; 4725 } 4726 } 4727 break; 4728 4729 } 4730 } 4731 4732 if (debug) 4733 { 4734 fprintf (stderr, "\thash\tdone, filename %s\n", filename); 4735 fprintf (stderr, "\tproc\tstart, filename %s\n", filename); 4736 } 4737 4738 /* Go through each of the procedures in this file, and add the 4739 procedure pointer to the hash entry for the given name. */ 4740 4741 proc_start = ORIG_PROCS (fd_ptr->ipdFirst); 4742 proc_end_p1 = proc_start + fd_ptr->cpd; 4743 for (proc = proc_start; proc < proc_end_p1; proc++) 4744 { 4745 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym); 4746 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss); 4747 Size_t len = strlen (str); 4748 shash_t *shash_ptr = hash_string (str, 4749 (Ptrdiff_t) len, 4750 &orig_str_hash[0], 4751 (symint_t *) 0); 4752 4753 if (shash_ptr == (shash_t *) 0) 4754 error ("internal error, function %s is not in original symbol table", str); 4755 4756 else 4757 shash_ptr->proc_ptr = proc; 4758 } 4759 4760 if (debug) 4761 fprintf (stderr, "\tproc\tdone, filename %s\n", filename); 4762 4763 } 4764 cur_file_ptr = first_file; 4765 4766 4767 /* Copy all of the object file up to the symbol table. Originally 4768 we were going to use ftruncate, but that doesn't seem to work 4769 on Ultrix 3.1.... */ 4770 4771 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0) 4772 pfatal_with_name (obj_in_name); 4773 4774 if (fseek (object_stream, (long) 0, SEEK_SET) != 0) 4775 pfatal_with_name (object_name); 4776 4777 for (remaining = orig_file_header.f_symptr; 4778 remaining > 0; 4779 remaining -= num_write) 4780 { 4781 num_write 4782 = (remaining <= (int) sizeof (buffer)) 4783 ? remaining : (int) sizeof (buffer); 4784 sys_read = fread ((PTR) buffer, 1, num_write, obj_in_stream); 4785 if (sys_read <= 0) 4786 pfatal_with_name (obj_in_name); 4787 4788 else if (sys_read != num_write) 4789 fatal ("wanted to read %d bytes from %s, system returned %d", 4790 num_write, 4791 obj_in_name, 4792 sys_read); 4793 4794 sys_write = fwrite (buffer, 1, num_write, object_stream); 4795 if (sys_write <= 0) 4796 pfatal_with_name (object_name); 4797 4798 else if (sys_write != num_write) 4799 fatal ("wrote %d bytes to %s, system returned %d", 4800 num_write, 4801 object_name, 4802 sys_write); 4803 } 4804} 4805 4806 4807/* Ye olde main program. */ 4808 4809extern int main PARAMS ((int, char **)); 4810 4811int 4812main (argc, argv) 4813 int argc; 4814 char **argv; 4815{ 4816 int iflag = 0; 4817 char *p = strrchr (argv[0], '/'); 4818 char *num_end; 4819 int option; 4820 int i; 4821 4822 progname = (p != 0) ? p+1 : argv[0]; 4823 4824 (void) signal (SIGSEGV, catch_signal); 4825 (void) signal (SIGBUS, catch_signal); 4826 (void) signal (SIGABRT, catch_signal); 4827 4828#if !defined(__SABER__) && !defined(lint) 4829 if (sizeof (efdr_t) > PAGE_USIZE) 4830 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d", 4831 (int) sizeof (efdr_t), 4832 (int) PAGE_USIZE); 4833 4834 if (sizeof (page_t) != PAGE_USIZE) 4835 fatal ("page_t has a sizeof %d bytes, when it should be %d", 4836 (int) sizeof (page_t), 4837 (int) PAGE_USIZE); 4838 4839#endif 4840 4841 alloc_counts[ alloc_type_none ].alloc_name = "none"; 4842 alloc_counts[ alloc_type_scope ].alloc_name = "scope"; 4843 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks"; 4844 alloc_counts[ alloc_type_shash ].alloc_name = "shash"; 4845 alloc_counts[ alloc_type_thash ].alloc_name = "thash"; 4846 alloc_counts[ alloc_type_tag ].alloc_name = "tag"; 4847 alloc_counts[ alloc_type_forward ].alloc_name = "forward"; 4848 alloc_counts[ alloc_type_thead ].alloc_name = "thead"; 4849 alloc_counts[ alloc_type_varray ].alloc_name = "varray"; 4850 4851 int_type_info = type_info_init; 4852 int_type_info.basic_type = bt_Int; 4853 4854 void_type_info = type_info_init; 4855 void_type_info.basic_type = bt_Void; 4856 4857 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF) 4858 switch (option) 4859 { 4860 default: 4861 had_errors++; 4862 break; 4863 4864 case 'd': 4865 debug = strtol (optarg, &num_end, 0); 4866 if ((unsigned) debug > 4 || num_end == optarg) 4867 had_errors++; 4868 4869 break; 4870 4871 case 'I': 4872 if (rename_output || obj_in_name != (char *) 0) 4873 had_errors++; 4874 else 4875 rename_output = 1; 4876 4877 /* fall through to 'i' case. */ 4878 4879 case 'i': 4880 if (obj_in_name == (char *) 0) 4881 { 4882 obj_in_name = optarg; 4883 iflag++; 4884 } 4885 else 4886 had_errors++; 4887 break; 4888 4889 case 'o': 4890 if (object_name == (char *) 0) 4891 object_name = optarg; 4892 else 4893 had_errors++; 4894 break; 4895 4896 case 'v': 4897 version++; 4898 break; 4899 } 4900 4901 if (obj_in_name == (char *) 0 && optind <= argc - 2) 4902 obj_in_name = argv[--argc]; 4903 4904 if (object_name == (char *) 0 && optind <= argc - 2) 4905 object_name = argv[--argc]; 4906 4907 /* If there is an output name, but no input name use 4908 the same file for both, deleting the name between 4909 opening it for input and opening it for output. */ 4910 if (obj_in_name == (char *) 0 && object_name != (char *) 0) 4911 { 4912 obj_in_name = object_name; 4913 delete_input = 1; 4914 } 4915 4916 if (object_name == (char *) 0 || had_errors || optind != argc - 1) 4917 { 4918 fprintf (stderr, _("Calling Sequence:\n")); 4919 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4920 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4921 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n")); 4922 fprintf (stderr, "\n"); 4923 fprintf (stderr, _("Debug levels are:\n")); 4924 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n")); 4925 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n")); 4926 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n")); 4927 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n")); 4928 return 1; 4929 } 4930 4931 4932 if (version) 4933 { 4934 fprintf (stderr, _("mips-tfile version %s"), version_string); 4935#ifdef TARGET_VERSION 4936 TARGET_VERSION; 4937#endif 4938 fputc ('\n', stderr); 4939 } 4940 4941 if (obj_in_name == (char *) 0) 4942 obj_in_name = object_name; 4943 4944 if (rename_output && rename (object_name, obj_in_name) != 0) 4945 { 4946 char *buffer = (char *) allocate_multiple_pages (4); 4947 int len; 4948 int len2; 4949 int in_fd; 4950 int out_fd; 4951 4952 /* Rename failed, copy input file */ 4953 in_fd = open (object_name, O_RDONLY, 0666); 4954 if (in_fd < 0) 4955 pfatal_with_name (object_name); 4956 4957 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); 4958 if (out_fd < 0) 4959 pfatal_with_name (obj_in_name); 4960 4961 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0) 4962 { 4963 len2 = write (out_fd, buffer, len); 4964 if (len2 < 0) 4965 pfatal_with_name (object_name); 4966 4967 if (len != len2) 4968 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len); 4969 } 4970 4971 free_multiple_pages ((page_t *) buffer, 4); 4972 4973 if (len < 0) 4974 pfatal_with_name (object_name); 4975 4976 if (close (in_fd) < 0) 4977 pfatal_with_name (object_name); 4978 4979 if (close (out_fd) < 0) 4980 pfatal_with_name (obj_in_name); 4981 } 4982 4983 /* Must open input before output, since the output may be the same file, and 4984 we need to get the input handle before truncating it. */ 4985 obj_in_stream = fopen (obj_in_name, "r"); 4986 if (obj_in_stream == (FILE *) 0) 4987 pfatal_with_name (obj_in_name); 4988 4989 if (delete_input && unlink (obj_in_name) != 0) 4990 pfatal_with_name (obj_in_name); 4991 4992 object_stream = fopen (object_name, "w"); 4993 if (object_stream == (FILE *) 0) 4994 pfatal_with_name (object_name); 4995 4996 if (strcmp (argv[optind], "-") != 0) 4997 { 4998 input_name = argv[optind]; 4999 if (freopen (argv[optind], "r", stdin) != stdin) 5000 pfatal_with_name (argv[optind]); 5001 } 5002 5003 copy_object (); /* scan & copy object file */ 5004 parse_input (); /* scan all of input */ 5005 5006 update_headers (); /* write out tfile */ 5007 write_object (); 5008 5009 if (debug) 5010 { 5011 fprintf (stderr, "\n\tAllocation summary:\n\n"); 5012 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++) 5013 if (alloc_counts[i].total_alloc) 5014 { 5015 fprintf (stderr, 5016 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n", 5017 alloc_counts[i].alloc_name, 5018 alloc_counts[i].total_alloc, 5019 alloc_counts[i].total_free, 5020 alloc_counts[i].total_pages); 5021 } 5022 } 5023 5024 return (had_errors) ? 1 : 0; 5025} 5026 5027 5028/* Catch a signal and exit without dumping core. */ 5029 5030STATIC void 5031catch_signal (signum) 5032 int signum; 5033{ 5034 (void) signal (signum, SIG_DFL); /* just in case... */ 5035 fatal ("%s", strsignal (signum)); 5036} 5037 5038/* Print a fatal error message. NAME is the text. 5039 Also include a system error message based on `errno'. */ 5040 5041void 5042pfatal_with_name (msg) 5043 const char *msg; 5044{ 5045 int save_errno = errno; /* just in case.... */ 5046 if (line_number > 0) 5047 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5048 else 5049 fprintf (stderr, "%s:", progname); 5050 5051 errno = save_errno; 5052 if (errno == 0) 5053 fprintf (stderr, "[errno = 0] %s\n", msg); 5054 else 5055 perror (msg); 5056 5057 exit (1); 5058} 5059 5060 5061/* Procedure to abort with an out of bounds error message. It has 5062 type int, so it can be used with an ?: expression within the 5063 ORIG_xxx macros, but the function never returns. */ 5064 5065static int 5066out_of_bounds (indx, max, str, prog_line) 5067 symint_t indx; /* index that is out of bounds */ 5068 symint_t max; /* maximum index */ 5069 const char *str; /* string to print out */ 5070 int prog_line; /* line number within mips-tfile.c */ 5071{ 5072 if (indx < max) /* just in case */ 5073 return 0; 5074 5075 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n", 5076 progname, input_name, line_number, indx, str, max, prog_line); 5077 5078 exit (1); 5079 return 0; /* turn off warning messages */ 5080} 5081 5082 5083/* Allocate a cluster of pages. USE_MALLOC says that malloc does not 5084 like sbrk's behind its back (or sbrk isn't available). If we use 5085 sbrk, we assume it gives us zeroed pages. */ 5086 5087#ifndef MALLOC_CHECK 5088#ifdef USE_MALLOC 5089 5090STATIC page_t * 5091allocate_cluster (npages) 5092 Size_t npages; 5093{ 5094 page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE); 5095 5096 if (debug > 3) 5097 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); 5098 5099 return value; 5100} 5101 5102#else /* USE_MALLOC */ 5103 5104STATIC page_t * 5105allocate_cluster (npages) 5106 Size_t npages; 5107{ 5108 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */ 5109 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1); 5110 5111 if (offset != 0) /* align to a page boundary */ 5112 { 5113 if (sbrk (PAGE_USIZE - offset) == (char *)-1) 5114 pfatal_with_name ("allocate_cluster"); 5115 5116 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset); 5117 } 5118 5119 if (sbrk (npages * PAGE_USIZE) == (char *) -1) 5120 pfatal_with_name ("allocate_cluster"); 5121 5122 if (debug > 3) 5123 { 5124 fprintf (stderr, "\talloc\tnpages = %lu, value = ", 5125 (unsigned long) npages); 5126 fprintf (stderr, HOST_PTR_PRINTF, (PTR) ptr); 5127 fputs ("\n", stderr); 5128 } 5129 5130 return ptr; 5131} 5132 5133#endif /* USE_MALLOC */ 5134 5135 5136static page_t *cluster_ptr = NULL; 5137static unsigned pages_left = 0; 5138 5139#endif /* MALLOC_CHECK */ 5140 5141 5142/* Allocate some pages (which is initialized to 0). */ 5143 5144STATIC page_t * 5145allocate_multiple_pages (npages) 5146 Size_t npages; 5147{ 5148#ifndef MALLOC_CHECK 5149 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES) 5150 { 5151 pages_left = MAX_CLUSTER_PAGES; 5152 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5153 } 5154 5155 if (npages <= pages_left) 5156 { 5157 page_t *ptr = cluster_ptr; 5158 cluster_ptr += npages; 5159 pages_left -= npages; 5160 return ptr; 5161 } 5162 5163 return allocate_cluster (npages); 5164 5165#else /* MALLOC_CHECK */ 5166 return (page_t *) xcalloc (npages, PAGE_SIZE); 5167 5168#endif /* MALLOC_CHECK */ 5169} 5170 5171 5172/* Release some pages. */ 5173 5174STATIC void 5175free_multiple_pages (page_ptr, npages) 5176 page_t *page_ptr; 5177 Size_t npages; 5178{ 5179#ifndef MALLOC_CHECK 5180 if (pages_left == 0) 5181 { 5182 cluster_ptr = page_ptr; 5183 pages_left = npages; 5184 } 5185 5186 else if ((page_ptr + npages) == cluster_ptr) 5187 { 5188 cluster_ptr -= npages; 5189 pages_left += npages; 5190 } 5191 5192 /* otherwise the page is not freed. If more than call is 5193 done, we probably should worry about it, but at present, 5194 the free pages is done right after an allocate. */ 5195 5196#else /* MALLOC_CHECK */ 5197 free ((char *) page_ptr); 5198 5199#endif /* MALLOC_CHECK */ 5200} 5201 5202 5203/* Allocate one page (which is initialized to 0). */ 5204 5205STATIC page_t * 5206allocate_page () 5207{ 5208#ifndef MALLOC_CHECK 5209 if (pages_left == 0) 5210 { 5211 pages_left = MAX_CLUSTER_PAGES; 5212 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5213 } 5214 5215 pages_left--; 5216 return cluster_ptr++; 5217 5218#else /* MALLOC_CHECK */ 5219 return (page_t *) xcalloc (1, PAGE_SIZE); 5220 5221#endif /* MALLOC_CHECK */ 5222} 5223 5224 5225/* Allocate scoping information. */ 5226 5227STATIC scope_t * 5228allocate_scope () 5229{ 5230 scope_t *ptr; 5231 static scope_t initial_scope; 5232 5233#ifndef MALLOC_CHECK 5234 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5235 if (ptr != (scope_t *) 0) 5236 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free; 5237 5238 else 5239 { 5240 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated; 5241 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page; 5242 5243 if (unallocated == 0) 5244 { 5245 unallocated = PAGE_SIZE / sizeof (scope_t); 5246 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page (); 5247 alloc_counts[ (int) alloc_type_scope ].total_pages++; 5248 } 5249 5250 ptr = &cur_page->scope[ --unallocated ]; 5251 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated; 5252 } 5253 5254#else 5255 ptr = (scope_t *) xmalloc (sizeof (scope_t)); 5256 5257#endif 5258 5259 alloc_counts[ (int) alloc_type_scope ].total_alloc++; 5260 *ptr = initial_scope; 5261 return ptr; 5262} 5263 5264/* Free scoping information. */ 5265 5266STATIC void 5267free_scope (ptr) 5268 scope_t *ptr; 5269{ 5270 alloc_counts[ (int) alloc_type_scope ].total_free++; 5271 5272#ifndef MALLOC_CHECK 5273 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5274 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr; 5275 5276#else 5277 free ((PTR) ptr); 5278#endif 5279 5280} 5281 5282 5283/* Allocate links for pages in a virtual array. */ 5284 5285STATIC vlinks_t * 5286allocate_vlinks () 5287{ 5288 vlinks_t *ptr; 5289 static vlinks_t initial_vlinks; 5290 5291#ifndef MALLOC_CHECK 5292 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated; 5293 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page; 5294 5295 if (unallocated == 0) 5296 { 5297 unallocated = PAGE_SIZE / sizeof (vlinks_t); 5298 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page (); 5299 alloc_counts[ (int) alloc_type_vlinks ].total_pages++; 5300 } 5301 5302 ptr = &cur_page->vlinks[ --unallocated ]; 5303 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated; 5304 5305#else 5306 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t)); 5307 5308#endif 5309 5310 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++; 5311 *ptr = initial_vlinks; 5312 return ptr; 5313} 5314 5315 5316/* Allocate string hash buckets. */ 5317 5318STATIC shash_t * 5319allocate_shash () 5320{ 5321 shash_t *ptr; 5322 static shash_t initial_shash; 5323 5324#ifndef MALLOC_CHECK 5325 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated; 5326 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page; 5327 5328 if (unallocated == 0) 5329 { 5330 unallocated = PAGE_SIZE / sizeof (shash_t); 5331 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page (); 5332 alloc_counts[ (int) alloc_type_shash ].total_pages++; 5333 } 5334 5335 ptr = &cur_page->shash[ --unallocated ]; 5336 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated; 5337 5338#else 5339 ptr = (shash_t *) xmalloc (sizeof (shash_t)); 5340 5341#endif 5342 5343 alloc_counts[ (int) alloc_type_shash ].total_alloc++; 5344 *ptr = initial_shash; 5345 return ptr; 5346} 5347 5348 5349/* Allocate type hash buckets. */ 5350 5351STATIC thash_t * 5352allocate_thash () 5353{ 5354 thash_t *ptr; 5355 static thash_t initial_thash; 5356 5357#ifndef MALLOC_CHECK 5358 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated; 5359 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page; 5360 5361 if (unallocated == 0) 5362 { 5363 unallocated = PAGE_SIZE / sizeof (thash_t); 5364 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page (); 5365 alloc_counts[ (int) alloc_type_thash ].total_pages++; 5366 } 5367 5368 ptr = &cur_page->thash[ --unallocated ]; 5369 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated; 5370 5371#else 5372 ptr = (thash_t *) xmalloc (sizeof (thash_t)); 5373 5374#endif 5375 5376 alloc_counts[ (int) alloc_type_thash ].total_alloc++; 5377 *ptr = initial_thash; 5378 return ptr; 5379} 5380 5381 5382/* Allocate structure, union, or enum tag information. */ 5383 5384STATIC tag_t * 5385allocate_tag () 5386{ 5387 tag_t *ptr; 5388 static tag_t initial_tag; 5389 5390#ifndef MALLOC_CHECK 5391 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5392 if (ptr != (tag_t *) 0) 5393 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free; 5394 5395 else 5396 { 5397 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated; 5398 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page; 5399 5400 if (unallocated == 0) 5401 { 5402 unallocated = PAGE_SIZE / sizeof (tag_t); 5403 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page (); 5404 alloc_counts[ (int) alloc_type_tag ].total_pages++; 5405 } 5406 5407 ptr = &cur_page->tag[ --unallocated ]; 5408 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated; 5409 } 5410 5411#else 5412 ptr = (tag_t *) xmalloc (sizeof (tag_t)); 5413 5414#endif 5415 5416 alloc_counts[ (int) alloc_type_tag ].total_alloc++; 5417 *ptr = initial_tag; 5418 return ptr; 5419} 5420 5421/* Free scoping information. */ 5422 5423STATIC void 5424free_tag (ptr) 5425 tag_t *ptr; 5426{ 5427 alloc_counts[ (int) alloc_type_tag ].total_free++; 5428 5429#ifndef MALLOC_CHECK 5430 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5431 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr; 5432 5433#else 5434 free ((PTR) ptr); 5435#endif 5436 5437} 5438 5439 5440/* Allocate forward reference to a yet unknown tag. */ 5441 5442STATIC forward_t * 5443allocate_forward () 5444{ 5445 forward_t *ptr; 5446 static forward_t initial_forward; 5447 5448#ifndef MALLOC_CHECK 5449 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5450 if (ptr != (forward_t *) 0) 5451 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free; 5452 5453 else 5454 { 5455 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated; 5456 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page; 5457 5458 if (unallocated == 0) 5459 { 5460 unallocated = PAGE_SIZE / sizeof (forward_t); 5461 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page (); 5462 alloc_counts[ (int) alloc_type_forward ].total_pages++; 5463 } 5464 5465 ptr = &cur_page->forward[ --unallocated ]; 5466 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated; 5467 } 5468 5469#else 5470 ptr = (forward_t *) xmalloc (sizeof (forward_t)); 5471 5472#endif 5473 5474 alloc_counts[ (int) alloc_type_forward ].total_alloc++; 5475 *ptr = initial_forward; 5476 return ptr; 5477} 5478 5479/* Free scoping information. */ 5480 5481STATIC void 5482free_forward (ptr) 5483 forward_t *ptr; 5484{ 5485 alloc_counts[ (int) alloc_type_forward ].total_free++; 5486 5487#ifndef MALLOC_CHECK 5488 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5489 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr; 5490 5491#else 5492 free ((PTR) ptr); 5493#endif 5494 5495} 5496 5497 5498/* Allocate head of type hash list. */ 5499 5500STATIC thead_t * 5501allocate_thead () 5502{ 5503 thead_t *ptr; 5504 static thead_t initial_thead; 5505 5506#ifndef MALLOC_CHECK 5507 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5508 if (ptr != (thead_t *) 0) 5509 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free; 5510 5511 else 5512 { 5513 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated; 5514 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page; 5515 5516 if (unallocated == 0) 5517 { 5518 unallocated = PAGE_SIZE / sizeof (thead_t); 5519 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page (); 5520 alloc_counts[ (int) alloc_type_thead ].total_pages++; 5521 } 5522 5523 ptr = &cur_page->thead[ --unallocated ]; 5524 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated; 5525 } 5526 5527#else 5528 ptr = (thead_t *) xmalloc (sizeof (thead_t)); 5529 5530#endif 5531 5532 alloc_counts[ (int) alloc_type_thead ].total_alloc++; 5533 *ptr = initial_thead; 5534 return ptr; 5535} 5536 5537/* Free scoping information. */ 5538 5539STATIC void 5540free_thead (ptr) 5541 thead_t *ptr; 5542{ 5543 alloc_counts[ (int) alloc_type_thead ].total_free++; 5544 5545#ifndef MALLOC_CHECK 5546 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5547 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr; 5548 5549#else 5550 free ((PTR) ptr); 5551#endif 5552 5553} 5554 5555#endif /* MIPS_DEBUGGING_INFO */ 5556 5557 5558/* Output an error message and exit */ 5559 5560/*VARARGS*/ 5561void 5562fatal VPARAMS ((const char *format, ...)) 5563{ 5564 VA_OPEN (ap, format); 5565 VA_FIXEDARG (ap, const char *, format); 5566 5567 if (line_number > 0) 5568 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5569 else 5570 fprintf (stderr, "%s:", progname); 5571 5572 vfprintf (stderr, format, ap); 5573 VA_CLOSE (ap); 5574 fprintf (stderr, "\n"); 5575 if (line_number > 0) 5576 fprintf (stderr, "line:\t%s\n", cur_line_start); 5577 5578 saber_stop (); 5579 exit (1); 5580} 5581 5582/*VARARGS*/ 5583void 5584error VPARAMS ((const char *format, ...)) 5585{ 5586 VA_OPEN (ap, format); 5587 VA_FIXEDARG (ap, char *, format); 5588 5589 if (line_number > 0) 5590 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5591 else 5592 fprintf (stderr, "%s:", progname); 5593 5594 vfprintf (stderr, format, ap); 5595 fprintf (stderr, "\n"); 5596 if (line_number > 0) 5597 fprintf (stderr, "line:\t%s\n", cur_line_start); 5598 5599 had_errors++; 5600 VA_CLOSE (ap); 5601 5602 saber_stop (); 5603} 5604 5605/* More 'friendly' abort that prints the line and file. 5606 config.h can #define abort fancy_abort if you like that sort of thing. */ 5607 5608void 5609fancy_abort () 5610{ 5611 fatal ("internal abort"); 5612} 5613 5614 5615/* When `malloc.c' is compiled with `rcheck' defined, 5616 it calls this function to report clobberage. */ 5617 5618void 5619botch (s) 5620 const char *s; 5621{ 5622 fatal ("%s", s); 5623} 5624