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 2002, 2003, 2004, 2005, 2006 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, 51 Franklin Street, Fifth Floor, Boston, MA 2402110-1301, 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 indices 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 "coretypes.h" 606#include "tm.h" 607#include "version.h" 608#include "intl.h" 609 610#ifndef __SABER__ 611#define saber_stop() 612#endif 613 614/* Include getopt.h for the sake of getopt_long. */ 615#include "getopt.h" 616 617#ifndef __LINE__ 618#define __LINE__ 0 619#endif 620 621/* Due to size_t being defined in sys/types.h and different 622 in stddef.h, we have to do this by hand..... Note, these 623 types are correct for MIPS based systems, and may not be 624 correct for other systems. Ultrix 4.0 and Silicon Graphics 625 have this fixed, but since the following is correct, and 626 the fact that including stddef.h gets you GCC's version 627 instead of the standard one it's not worth it to fix it. */ 628 629#if defined(__OSF1__) || defined(__OSF__) || defined(__osf__) 630#define Size_t long unsigned int 631#else 632#define Size_t unsigned int 633#endif 634#define Ptrdiff_t long 635 636/* The following might be called from obstack or malloc, 637 so they can't be static. */ 638 639extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN; 640extern void botch (const char *) ATTRIBUTE_NORETURN; 641 642extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; 643extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1; 644 645#ifndef MIPS_DEBUGGING_INFO 646 647static int line_number; 648static int cur_line_start; 649static int debug; 650static int had_errors; 651static const char *progname; 652static const char *input_name; 653 654int 655main (void) 656{ 657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n"); 658 exit (1); 659} 660 661#else /* MIPS_DEBUGGING defined */ 662 663/* The local and global symbols have a field index, so undo any defines 664 of index -> strchr. */ 665 666#undef index 667 668#include <signal.h> 669 670#ifndef CROSS_DIRECTORY_STRUCTURE 671#include <a.out.h> 672#else 673#include "mips/a.out.h" 674#endif /* CROSS_DIRECTORY_STRUCTURE */ 675 676#include "gstab.h" 677 678#define STAB_CODE_TYPE enum __stab_debug_code 679 680#ifndef MALLOC_CHECK 681#ifdef __SABER__ 682#define MALLOC_CHECK 683#endif 684#endif 685 686#define IS_ASM_IDENT(ch) \ 687 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$') 688 689 690/* Redefinition of storage classes as an enumeration for better 691 debugging. */ 692 693typedef enum sc { 694 sc_Nil = scNil, /* no storage class */ 695 sc_Text = scText, /* text symbol */ 696 sc_Data = scData, /* initialized data symbol */ 697 sc_Bss = scBss, /* un-initialized data symbol */ 698 sc_Register = scRegister, /* value of symbol is register number */ 699 sc_Abs = scAbs, /* value of symbol is absolute */ 700 sc_Undefined = scUndefined, /* who knows? */ 701 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ 702 sc_Bits = scBits, /* this is a bit field */ 703 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ 704 sc_RegImage = scRegImage, /* register value saved on stack */ 705 sc_Info = scInfo, /* symbol contains debugger information */ 706 sc_UserStruct = scUserStruct, /* addr in struct user for current process */ 707 sc_SData = scSData, /* load time only small data */ 708 sc_SBss = scSBss, /* load time only small common */ 709 sc_RData = scRData, /* load time only read only data */ 710 sc_Var = scVar, /* Var parameter (fortran,pascal) */ 711 sc_Common = scCommon, /* common variable */ 712 sc_SCommon = scSCommon, /* small common */ 713 sc_VarRegister = scVarRegister, /* Var parameter in a register */ 714 sc_Variant = scVariant, /* Variant record */ 715 sc_SUndefined = scSUndefined, /* small undefined(external) data */ 716 sc_Init = scInit, /* .init section symbol */ 717 sc_Max = scMax /* Max storage class+1 */ 718} sc_t; 719 720/* Redefinition of symbol type. */ 721 722typedef enum st { 723 st_Nil = stNil, /* Nuthin' special */ 724 st_Global = stGlobal, /* external symbol */ 725 st_Static = stStatic, /* static */ 726 st_Param = stParam, /* procedure argument */ 727 st_Local = stLocal, /* local variable */ 728 st_Label = stLabel, /* label */ 729 st_Proc = stProc, /* " " Procedure */ 730 st_Block = stBlock, /* beginning of block */ 731 st_End = stEnd, /* end (of anything) */ 732 st_Member = stMember, /* member (of anything - struct/union/enum */ 733 st_Typedef = stTypedef, /* type definition */ 734 st_File = stFile, /* file name */ 735 st_RegReloc = stRegReloc, /* register relocation */ 736 st_Forward = stForward, /* forwarding address */ 737 st_StaticProc = stStaticProc, /* load time only static procs */ 738 st_Constant = stConstant, /* const */ 739 st_Str = stStr, /* string */ 740 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */ 741 st_Expr = stExpr, /* 2+2 vs. 4 */ 742 st_Type = stType, /* post-coercion SER */ 743 st_Max = stMax /* max type+1 */ 744} st_t; 745 746/* Redefinition of type qualifiers. */ 747 748typedef enum tq { 749 tq_Nil = tqNil, /* bt is what you see */ 750 tq_Ptr = tqPtr, /* pointer */ 751 tq_Proc = tqProc, /* procedure */ 752 tq_Array = tqArray, /* duh */ 753 tq_Far = tqFar, /* longer addressing - 8086/8 land */ 754 tq_Vol = tqVol, /* volatile */ 755 tq_Max = tqMax /* Max type qualifier+1 */ 756} tq_t; 757 758/* Redefinition of basic types. */ 759 760typedef enum bt { 761 bt_Nil = btNil, /* undefined */ 762 bt_Adr = btAdr, /* address - integer same size as pointer */ 763 bt_Char = btChar, /* character */ 764 bt_UChar = btUChar, /* unsigned character */ 765 bt_Short = btShort, /* short */ 766 bt_UShort = btUShort, /* unsigned short */ 767 bt_Int = btInt, /* int */ 768 bt_UInt = btUInt, /* unsigned int */ 769 bt_Long = btLong, /* long */ 770 bt_ULong = btULong, /* unsigned long */ 771 bt_Float = btFloat, /* float (real) */ 772 bt_Double = btDouble, /* Double (real) */ 773 bt_Struct = btStruct, /* Structure (Record) */ 774 bt_Union = btUnion, /* Union (variant) */ 775 bt_Enum = btEnum, /* Enumerated */ 776 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ 777 bt_Range = btRange, /* subrange of int */ 778 bt_Set = btSet, /* pascal sets */ 779 bt_Complex = btComplex, /* fortran complex */ 780 bt_DComplex = btDComplex, /* fortran double complex */ 781 bt_Indirect = btIndirect, /* forward or unnamed typedef */ 782 bt_FixedDec = btFixedDec, /* Fixed Decimal */ 783 bt_FloatDec = btFloatDec, /* Float Decimal */ 784 bt_String = btString, /* Varying Length Character String */ 785 bt_Bit = btBit, /* Aligned Bit String */ 786 bt_Picture = btPicture, /* Picture */ 787 788#ifdef btVoid 789 bt_Void = btVoid, /* Void */ 790#else 791#define bt_Void bt_Nil 792#endif 793 794 bt_Max = btMax /* Max basic type+1 */ 795} bt_t; 796 797 798 799/* Basic COFF storage classes. */ 800enum coff_storage { 801 C_EFCN = -1, 802 C_NULL = 0, 803 C_AUTO = 1, 804 C_EXT = 2, 805 C_STAT = 3, 806 C_REG = 4, 807 C_EXTDEF = 5, 808 C_LABEL = 6, 809 C_ULABEL = 7, 810 C_MOS = 8, 811 C_ARG = 9, 812 C_STRTAG = 10, 813 C_MOU = 11, 814 C_UNTAG = 12, 815 C_TPDEF = 13, 816 C_USTATIC = 14, 817 C_ENTAG = 15, 818 C_MOE = 16, 819 C_REGPARM = 17, 820 C_FIELD = 18, 821 C_BLOCK = 100, 822 C_FCN = 101, 823 C_EOS = 102, 824 C_FILE = 103, 825 C_LINE = 104, 826 C_ALIAS = 105, 827 C_HIDDEN = 106, 828 C_MAX = 107 829} coff_storage_t; 830 831/* Regular COFF fundamental type. */ 832typedef enum coff_type { 833 T_NULL = 0, 834 T_ARG = 1, 835 T_CHAR = 2, 836 T_SHORT = 3, 837 T_INT = 4, 838 T_LONG = 5, 839 T_FLOAT = 6, 840 T_DOUBLE = 7, 841 T_STRUCT = 8, 842 T_UNION = 9, 843 T_ENUM = 10, 844 T_MOE = 11, 845 T_UCHAR = 12, 846 T_USHORT = 13, 847 T_UINT = 14, 848 T_ULONG = 15, 849 T_MAX = 16 850} coff_type_t; 851 852/* Regular COFF derived types. */ 853typedef enum coff_dt { 854 DT_NON = 0, 855 DT_PTR = 1, 856 DT_FCN = 2, 857 DT_ARY = 3, 858 DT_MAX = 4 859} coff_dt_t; 860 861#define N_BTMASK 017 /* bitmask to isolate basic type */ 862#define N_TMASK 003 /* bitmask to isolate derived type */ 863#define N_BT_SHIFT 4 /* # bits to shift past basic type */ 864#define N_TQ_SHIFT 2 /* # bits to shift derived types */ 865#define N_TQ 6 /* # of type qualifiers */ 866 867/* States for whether to hash type or not. */ 868typedef enum hash_state { 869 hash_no = 0, /* don't hash type */ 870 hash_yes = 1, /* ok to hash type, or use previous hash */ 871 hash_record = 2 /* ok to record hash, but don't use prev. */ 872} hash_state_t; 873 874 875/* Types of different sized allocation requests. */ 876enum alloc_type { 877 alloc_type_none, /* dummy value */ 878 alloc_type_scope, /* nested scopes linked list */ 879 alloc_type_vlinks, /* glue linking pages in varray */ 880 alloc_type_shash, /* string hash element */ 881 alloc_type_thash, /* type hash element */ 882 alloc_type_tag, /* struct/union/tag element */ 883 alloc_type_forward, /* element to hold unknown tag */ 884 alloc_type_thead, /* head of type hash list */ 885 alloc_type_varray, /* general varray allocation */ 886 alloc_type_last /* last+1 element for array bounds */ 887}; 888 889 890#define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1)) 891#define DWORD_ALIGN(x) (((x) + 7) & ~7) 892 893 894/* Structures to provide n-number of virtual arrays, each of which can 895 grow linearly, and which are written in the object file as sequential 896 pages. On systems with a BSD malloc that define USE_MALLOC, the 897 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc 898 adds its overhead, and rounds up to the next power of 2. Pages are 899 linked together via a linked list. */ 900 901#ifndef PAGE_SIZE 902#define PAGE_SIZE 32768 /* 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#define INITIALIZE_VARRAY(x,type) \ 952do { \ 953 (x)->object_size = sizeof (type); \ 954 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \ 955 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \ 956} while (0) 957 958/* Master type for indexes within the symbol table. */ 959typedef unsigned long symint_t; 960 961 962/* Linked list support for nested scopes (file, block, structure, etc.). */ 963typedef struct scope { 964 struct scope *prev; /* previous scope level */ 965 struct scope *free; /* free list pointer */ 966 SYMR *lsym; /* pointer to local symbol node */ 967 symint_t lnumber; /* lsym index */ 968 st_t type; /* type of the node */ 969} scope_t; 970 971 972/* Forward reference list for tags referenced, but not yet defined. */ 973typedef struct forward { 974 struct forward *next; /* next forward reference */ 975 struct forward *free; /* free list pointer */ 976 AUXU *ifd_ptr; /* pointer to store file index */ 977 AUXU *index_ptr; /* pointer to store symbol index */ 978 AUXU *type_ptr; /* pointer to munge type info */ 979} forward_t; 980 981 982/* Linked list support for tags. The first tag in the list is always 983 the current tag for that block. */ 984typedef struct tag { 985 struct tag *free; /* free list pointer */ 986 struct shash *hash_ptr; /* pointer to the hash table head */ 987 struct tag *same_name; /* tag with same name in outer scope */ 988 struct tag *same_block; /* next tag defined in the same block. */ 989 struct forward *forward_ref; /* list of forward references */ 990 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ 991 symint_t ifd; /* file # tag defined in */ 992 symint_t indx; /* index within file's local symbols */ 993} tag_t; 994 995 996/* Head of a block's linked list of tags. */ 997typedef struct thead { 998 struct thead *prev; /* previous block */ 999 struct thead *free; /* free list pointer */ 1000 struct tag *first_tag; /* first tag in block defined */ 1001} thead_t; 1002 1003 1004/* Union containing pointers to each the small structures which are freed up. */ 1005typedef union small_free { 1006 scope_t *f_scope; /* scope structure */ 1007 thead_t *f_thead; /* tag head structure */ 1008 tag_t *f_tag; /* tag element structure */ 1009 forward_t *f_forward; /* forward tag reference */ 1010} small_free_t; 1011 1012 1013/* String hash table support. The size of the hash table must fit 1014 within a page. */ 1015 1016#ifndef SHASH_SIZE 1017#define SHASH_SIZE 1009 1018#endif 1019 1020#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */ 1021 1022typedef struct shash { 1023 struct shash *next; /* next hash value */ 1024 char *string; /* string we are hashing */ 1025 symint_t len; /* string length */ 1026 symint_t indx; /* index within string table */ 1027 EXTR *esym_ptr; /* global symbol pointer */ 1028 SYMR *sym_ptr; /* local symbol pointer */ 1029 SYMR *end_ptr; /* symbol pointer to end block */ 1030 tag_t *tag_ptr; /* tag pointer */ 1031 PDR *proc_ptr; /* procedure descriptor pointer */ 1032} shash_t; 1033 1034 1035/* Type hash table support. The size of the hash table must fit 1036 within a page with the other extended file descriptor information. 1037 Because unique types which are hashed are fewer in number than 1038 strings, we use a smaller hash value. */ 1039 1040#ifndef THASH_SIZE 1041#define THASH_SIZE 113 1042#endif 1043 1044typedef struct thash { 1045 struct thash *next; /* next hash value */ 1046 AUXU type; /* type we are hashing */ 1047 symint_t indx; /* index within string table */ 1048} thash_t; 1049 1050 1051/* Extended file descriptor that contains all of the support necessary 1052 to add things to each file separately. */ 1053typedef struct efdr { 1054 FDR fdr; /* File header to be written out */ 1055 FDR *orig_fdr; /* original file header */ 1056 char *name; /* filename */ 1057 int name_len; /* length of the filename */ 1058 symint_t void_type; /* aux. pointer to 'void' type */ 1059 symint_t int_type; /* aux. pointer to 'int' type */ 1060 scope_t *cur_scope; /* current nested scopes */ 1061 symint_t file_index; /* current file number */ 1062 int nested_scopes; /* # nested scopes */ 1063 varray_t strings; /* local strings */ 1064 varray_t symbols; /* local symbols */ 1065 varray_t procs; /* procedures */ 1066 varray_t aux_syms; /* auxiliary symbols */ 1067 struct efdr *next_file; /* next file descriptor */ 1068 /* string/type hash tables */ 1069 shash_t **shash_head; /* string hash table */ 1070 thash_t *thash_head[THASH_SIZE]; 1071} efdr_t; 1072 1073/* Pre-initialized extended file structure. */ 1074static int init_file_initialized = 0; 1075static efdr_t init_file; 1076 1077static efdr_t *first_file; /* first file descriptor */ 1078static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ 1079 1080 1081/* Union of various things that are held in pages. */ 1082typedef union page { 1083 char byte [ PAGE_SIZE ]; 1084 unsigned char ubyte [ PAGE_SIZE ]; 1085 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; 1086 FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; 1087 PDR proc [ PAGE_SIZE / sizeof (PDR) ]; 1088 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ]; 1089 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ]; 1090 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ]; 1091 DNR dense [ PAGE_SIZE / sizeof (DNR) ]; 1092 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; 1093 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; 1094 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; 1095 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; 1096 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; 1097 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; 1098 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; 1099} page_t; 1100 1101 1102/* Structure holding allocation information for small sized structures. */ 1103typedef struct alloc_info { 1104 const char *alloc_name; /* name of this allocation type (must be first) */ 1105 page_t *cur_page; /* current page being allocated from */ 1106 small_free_t free_list; /* current free list if any */ 1107 int unallocated; /* number of elements unallocated on page */ 1108 int total_alloc; /* total number of allocations */ 1109 int total_free; /* total number of frees */ 1110 int total_pages; /* total number of pages allocated */ 1111} alloc_info_t; 1112 1113/* Type information collected together. */ 1114typedef struct type_info { 1115 bt_t basic_type; /* basic type */ 1116 coff_type_t orig_type; /* original COFF-based type */ 1117 int num_tq; /* # type qualifiers */ 1118 int num_dims; /* # dimensions */ 1119 int num_sizes; /* # sizes */ 1120 int extra_sizes; /* # extra sizes not tied with dims */ 1121 tag_t * tag_ptr; /* tag pointer */ 1122 int bitfield; /* symbol is a bitfield */ 1123 int unknown_tag; /* this is an unknown tag */ 1124 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ 1125 symint_t dimensions [N_TQ]; /* dimensions for each array */ 1126 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of 1127 struct/union/enum + bitfield size */ 1128} type_info_t; 1129 1130/* Pre-initialized type_info struct. */ 1131static type_info_t type_info_init = { 1132 bt_Nil, /* basic type */ 1133 T_NULL, /* original COFF-based type */ 1134 0, /* # type qualifiers */ 1135 0, /* # dimensions */ 1136 0, /* # sizes */ 1137 0, /* sizes not tied with dims */ 1138 NULL, /* ptr to tag */ 1139 0, /* bitfield */ 1140 0, /* unknown tag */ 1141 { /* type qualifiers */ 1142 tq_Nil, 1143 tq_Nil, 1144 tq_Nil, 1145 tq_Nil, 1146 tq_Nil, 1147 tq_Nil, 1148 }, 1149 { /* dimensions */ 1150 0, 1151 0, 1152 0, 1153 0, 1154 0, 1155 0 1156 }, 1157 { /* sizes */ 1158 0, 1159 0, 1160 0, 1161 0, 1162 0, 1163 0, 1164 0, 1165 0, 1166 }, 1167}; 1168 1169 1170/* Global virtual arrays & hash table for external strings as well as 1171 for the tags table and global tables for file descriptors, and 1172 dense numbers. */ 1173 1174static varray_t file_desc = INIT_VARRAY (efdr_t); 1175static varray_t dense_num = INIT_VARRAY (DNR); 1176static varray_t tag_strings = INIT_VARRAY (char); 1177static varray_t ext_strings = INIT_VARRAY (char); 1178static varray_t ext_symbols = INIT_VARRAY (EXTR); 1179 1180static shash_t *orig_str_hash[SHASH_SIZE]; 1181static shash_t *ext_str_hash [SHASH_SIZE]; 1182static shash_t *tag_hash [SHASH_SIZE]; 1183 1184/* Static types for int and void. Also, remember the last function's 1185 type (which is set up when we encounter the declaration for the 1186 function, and used when the end block for the function is emitted. */ 1187 1188static type_info_t int_type_info; 1189static type_info_t void_type_info; 1190static type_info_t last_func_type_info; 1191static EXTR *last_func_eptr; 1192 1193 1194/* Convert COFF basic type to ECOFF basic type. The T_NULL type 1195 really should use bt_Void, but this causes the current ecoff GDB to 1196 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS 1197 2.0) doesn't understand it, even though the compiler generates it. 1198 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler 1199 suite, but for now go with what works. */ 1200 1201static const bt_t map_coff_types[ (int) T_MAX ] = { 1202 bt_Nil, /* T_NULL */ 1203 bt_Nil, /* T_ARG */ 1204 bt_Char, /* T_CHAR */ 1205 bt_Short, /* T_SHORT */ 1206 bt_Int, /* T_INT */ 1207 bt_Long, /* T_LONG */ 1208 bt_Float, /* T_FLOAT */ 1209 bt_Double, /* T_DOUBLE */ 1210 bt_Struct, /* T_STRUCT */ 1211 bt_Union, /* T_UNION */ 1212 bt_Enum, /* T_ENUM */ 1213 bt_Enum, /* T_MOE */ 1214 bt_UChar, /* T_UCHAR */ 1215 bt_UShort, /* T_USHORT */ 1216 bt_UInt, /* T_UINT */ 1217 bt_ULong /* T_ULONG */ 1218}; 1219 1220/* Convert COFF storage class to ECOFF storage class. */ 1221static const sc_t map_coff_storage[ (int) C_MAX ] = { 1222 sc_Nil, /* 0: C_NULL */ 1223 sc_Abs, /* 1: C_AUTO auto var */ 1224 sc_Undefined, /* 2: C_EXT external */ 1225 sc_Data, /* 3: C_STAT static */ 1226 sc_Register, /* 4: C_REG register */ 1227 sc_Undefined, /* 5: C_EXTDEF ??? */ 1228 sc_Text, /* 6: C_LABEL label */ 1229 sc_Text, /* 7: C_ULABEL user label */ 1230 sc_Info, /* 8: C_MOS member of struct */ 1231 sc_Abs, /* 9: C_ARG argument */ 1232 sc_Info, /* 10: C_STRTAG struct tag */ 1233 sc_Info, /* 11: C_MOU member of union */ 1234 sc_Info, /* 12: C_UNTAG union tag */ 1235 sc_Info, /* 13: C_TPDEF typedef */ 1236 sc_Data, /* 14: C_USTATIC ??? */ 1237 sc_Info, /* 15: C_ENTAG enum tag */ 1238 sc_Info, /* 16: C_MOE member of enum */ 1239 sc_Register, /* 17: C_REGPARM register parameter */ 1240 sc_Bits, /* 18; C_FIELD bitfield */ 1241 sc_Nil, /* 19 */ 1242 sc_Nil, /* 20 */ 1243 sc_Nil, /* 21 */ 1244 sc_Nil, /* 22 */ 1245 sc_Nil, /* 23 */ 1246 sc_Nil, /* 24 */ 1247 sc_Nil, /* 25 */ 1248 sc_Nil, /* 26 */ 1249 sc_Nil, /* 27 */ 1250 sc_Nil, /* 28 */ 1251 sc_Nil, /* 29 */ 1252 sc_Nil, /* 30 */ 1253 sc_Nil, /* 31 */ 1254 sc_Nil, /* 32 */ 1255 sc_Nil, /* 33 */ 1256 sc_Nil, /* 34 */ 1257 sc_Nil, /* 35 */ 1258 sc_Nil, /* 36 */ 1259 sc_Nil, /* 37 */ 1260 sc_Nil, /* 38 */ 1261 sc_Nil, /* 39 */ 1262 sc_Nil, /* 40 */ 1263 sc_Nil, /* 41 */ 1264 sc_Nil, /* 42 */ 1265 sc_Nil, /* 43 */ 1266 sc_Nil, /* 44 */ 1267 sc_Nil, /* 45 */ 1268 sc_Nil, /* 46 */ 1269 sc_Nil, /* 47 */ 1270 sc_Nil, /* 48 */ 1271 sc_Nil, /* 49 */ 1272 sc_Nil, /* 50 */ 1273 sc_Nil, /* 51 */ 1274 sc_Nil, /* 52 */ 1275 sc_Nil, /* 53 */ 1276 sc_Nil, /* 54 */ 1277 sc_Nil, /* 55 */ 1278 sc_Nil, /* 56 */ 1279 sc_Nil, /* 57 */ 1280 sc_Nil, /* 58 */ 1281 sc_Nil, /* 59 */ 1282 sc_Nil, /* 60 */ 1283 sc_Nil, /* 61 */ 1284 sc_Nil, /* 62 */ 1285 sc_Nil, /* 63 */ 1286 sc_Nil, /* 64 */ 1287 sc_Nil, /* 65 */ 1288 sc_Nil, /* 66 */ 1289 sc_Nil, /* 67 */ 1290 sc_Nil, /* 68 */ 1291 sc_Nil, /* 69 */ 1292 sc_Nil, /* 70 */ 1293 sc_Nil, /* 71 */ 1294 sc_Nil, /* 72 */ 1295 sc_Nil, /* 73 */ 1296 sc_Nil, /* 74 */ 1297 sc_Nil, /* 75 */ 1298 sc_Nil, /* 76 */ 1299 sc_Nil, /* 77 */ 1300 sc_Nil, /* 78 */ 1301 sc_Nil, /* 79 */ 1302 sc_Nil, /* 80 */ 1303 sc_Nil, /* 81 */ 1304 sc_Nil, /* 82 */ 1305 sc_Nil, /* 83 */ 1306 sc_Nil, /* 84 */ 1307 sc_Nil, /* 85 */ 1308 sc_Nil, /* 86 */ 1309 sc_Nil, /* 87 */ 1310 sc_Nil, /* 88 */ 1311 sc_Nil, /* 89 */ 1312 sc_Nil, /* 90 */ 1313 sc_Nil, /* 91 */ 1314 sc_Nil, /* 92 */ 1315 sc_Nil, /* 93 */ 1316 sc_Nil, /* 94 */ 1317 sc_Nil, /* 95 */ 1318 sc_Nil, /* 96 */ 1319 sc_Nil, /* 97 */ 1320 sc_Nil, /* 98 */ 1321 sc_Nil, /* 99 */ 1322 sc_Text, /* 100: C_BLOCK block start/end */ 1323 sc_Text, /* 101: C_FCN function start/end */ 1324 sc_Info, /* 102: C_EOS end of struct/union/enum */ 1325 sc_Nil, /* 103: C_FILE file start */ 1326 sc_Nil, /* 104: C_LINE line number */ 1327 sc_Nil, /* 105: C_ALIAS combined type info */ 1328 sc_Nil, /* 106: C_HIDDEN ??? */ 1329}; 1330 1331/* Convert COFF storage class to ECOFF symbol type. */ 1332static const st_t map_coff_sym_type[ (int) C_MAX ] = { 1333 st_Nil, /* 0: C_NULL */ 1334 st_Local, /* 1: C_AUTO auto var */ 1335 st_Global, /* 2: C_EXT external */ 1336 st_Static, /* 3: C_STAT static */ 1337 st_Local, /* 4: C_REG register */ 1338 st_Global, /* 5: C_EXTDEF ??? */ 1339 st_Label, /* 6: C_LABEL label */ 1340 st_Label, /* 7: C_ULABEL user label */ 1341 st_Member, /* 8: C_MOS member of struct */ 1342 st_Param, /* 9: C_ARG argument */ 1343 st_Block, /* 10: C_STRTAG struct tag */ 1344 st_Member, /* 11: C_MOU member of union */ 1345 st_Block, /* 12: C_UNTAG union tag */ 1346 st_Typedef, /* 13: C_TPDEF typedef */ 1347 st_Static, /* 14: C_USTATIC ??? */ 1348 st_Block, /* 15: C_ENTAG enum tag */ 1349 st_Member, /* 16: C_MOE member of enum */ 1350 st_Param, /* 17: C_REGPARM register parameter */ 1351 st_Member, /* 18; C_FIELD bitfield */ 1352 st_Nil, /* 19 */ 1353 st_Nil, /* 20 */ 1354 st_Nil, /* 21 */ 1355 st_Nil, /* 22 */ 1356 st_Nil, /* 23 */ 1357 st_Nil, /* 24 */ 1358 st_Nil, /* 25 */ 1359 st_Nil, /* 26 */ 1360 st_Nil, /* 27 */ 1361 st_Nil, /* 28 */ 1362 st_Nil, /* 29 */ 1363 st_Nil, /* 30 */ 1364 st_Nil, /* 31 */ 1365 st_Nil, /* 32 */ 1366 st_Nil, /* 33 */ 1367 st_Nil, /* 34 */ 1368 st_Nil, /* 35 */ 1369 st_Nil, /* 36 */ 1370 st_Nil, /* 37 */ 1371 st_Nil, /* 38 */ 1372 st_Nil, /* 39 */ 1373 st_Nil, /* 40 */ 1374 st_Nil, /* 41 */ 1375 st_Nil, /* 42 */ 1376 st_Nil, /* 43 */ 1377 st_Nil, /* 44 */ 1378 st_Nil, /* 45 */ 1379 st_Nil, /* 46 */ 1380 st_Nil, /* 47 */ 1381 st_Nil, /* 48 */ 1382 st_Nil, /* 49 */ 1383 st_Nil, /* 50 */ 1384 st_Nil, /* 51 */ 1385 st_Nil, /* 52 */ 1386 st_Nil, /* 53 */ 1387 st_Nil, /* 54 */ 1388 st_Nil, /* 55 */ 1389 st_Nil, /* 56 */ 1390 st_Nil, /* 57 */ 1391 st_Nil, /* 58 */ 1392 st_Nil, /* 59 */ 1393 st_Nil, /* 60 */ 1394 st_Nil, /* 61 */ 1395 st_Nil, /* 62 */ 1396 st_Nil, /* 63 */ 1397 st_Nil, /* 64 */ 1398 st_Nil, /* 65 */ 1399 st_Nil, /* 66 */ 1400 st_Nil, /* 67 */ 1401 st_Nil, /* 68 */ 1402 st_Nil, /* 69 */ 1403 st_Nil, /* 70 */ 1404 st_Nil, /* 71 */ 1405 st_Nil, /* 72 */ 1406 st_Nil, /* 73 */ 1407 st_Nil, /* 74 */ 1408 st_Nil, /* 75 */ 1409 st_Nil, /* 76 */ 1410 st_Nil, /* 77 */ 1411 st_Nil, /* 78 */ 1412 st_Nil, /* 79 */ 1413 st_Nil, /* 80 */ 1414 st_Nil, /* 81 */ 1415 st_Nil, /* 82 */ 1416 st_Nil, /* 83 */ 1417 st_Nil, /* 84 */ 1418 st_Nil, /* 85 */ 1419 st_Nil, /* 86 */ 1420 st_Nil, /* 87 */ 1421 st_Nil, /* 88 */ 1422 st_Nil, /* 89 */ 1423 st_Nil, /* 90 */ 1424 st_Nil, /* 91 */ 1425 st_Nil, /* 92 */ 1426 st_Nil, /* 93 */ 1427 st_Nil, /* 94 */ 1428 st_Nil, /* 95 */ 1429 st_Nil, /* 96 */ 1430 st_Nil, /* 97 */ 1431 st_Nil, /* 98 */ 1432 st_Nil, /* 99 */ 1433 st_Block, /* 100: C_BLOCK block start/end */ 1434 st_Proc, /* 101: C_FCN function start/end */ 1435 st_End, /* 102: C_EOS end of struct/union/enum */ 1436 st_File, /* 103: C_FILE file start */ 1437 st_Nil, /* 104: C_LINE line number */ 1438 st_Nil, /* 105: C_ALIAS combined type info */ 1439 st_Nil, /* 106: C_HIDDEN ??? */ 1440}; 1441 1442/* Map COFF derived types to ECOFF type qualifiers. */ 1443static const tq_t map_coff_derived_type[ (int) DT_MAX ] = { 1444 tq_Nil, /* 0: DT_NON no more qualifiers */ 1445 tq_Ptr, /* 1: DT_PTR pointer */ 1446 tq_Proc, /* 2: DT_FCN function */ 1447 tq_Array, /* 3: DT_ARY array */ 1448}; 1449 1450 1451/* Keep track of different sized allocation requests. */ 1452static alloc_info_t alloc_counts[ (int) alloc_type_last ]; 1453 1454 1455/* Pointers and such to the original symbol table that is read in. */ 1456static struct filehdr orig_file_header; /* global object file header */ 1457 1458static HDRR orig_sym_hdr; /* symbolic header on input */ 1459static char *orig_linenum; /* line numbers */ 1460static DNR *orig_dense; /* dense numbers */ 1461static PDR *orig_procs; /* procedures */ 1462static SYMR *orig_local_syms; /* local symbols */ 1463static OPTR *orig_opt_syms; /* optimization symbols */ 1464static AUXU *orig_aux_syms; /* auxiliary symbols */ 1465static char *orig_local_strs; /* local strings */ 1466static char *orig_ext_strs; /* external strings */ 1467static FDR *orig_files; /* file descriptors */ 1468static symint_t *orig_rfds; /* relative file desc's */ 1469static EXTR *orig_ext_syms; /* external symbols */ 1470 1471/* Macros to convert an index into a given object within the original 1472 symbol table. */ 1473#define CHECK(num,max,str) \ 1474 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0) 1475 1476#define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum) 1477#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense) 1478#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs) 1479#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files) 1480#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms) 1481#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs) 1482#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms) 1483#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs) 1484#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms) 1485#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms) 1486#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds) 1487 1488/* Various other statics. */ 1489static HDRR symbolic_header; /* symbolic header */ 1490static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ 1491static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */ 1492static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */ 1493static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */ 1494static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/ 1495static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */ 1496static unsigned long file_offset = 0; /* current file offset */ 1497static unsigned long max_file_offset = 0; /* maximum file offset */ 1498static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */ 1499static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */ 1500static char *progname = (char *) 0; /* program name for errors */ 1501static const char *input_name = "stdin"; /* name of input file */ 1502static char *object_name = (char *) 0; /* tmp. name of object file */ 1503static char *obj_in_name = (char *) 0; /* name of input object file */ 1504static char *cur_line_start = (char *) 0; /* current line read in */ 1505static char *cur_line_ptr = (char *) 0; /* ptr within current line */ 1506static unsigned cur_line_nbytes = 0; /* # bytes for current line */ 1507static unsigned cur_line_alloc = 0; /* # bytes total in buffer */ 1508static long line_number = 0; /* current input line number */ 1509static int debug = 0; /* trace functions */ 1510static int version = 0; /* print version # */ 1511static int verbose = 0; 1512static int had_errors = 0; /* != 0 if errors were found */ 1513static int rename_output = 0; /* != 0 if rename output file*/ 1514static int delete_input = 0; /* != 0 if delete input after done */ 1515static int stabs_seen = 0; /* != 0 if stabs have been seen */ 1516 1517 1518/* Pseudo symbol to use when putting stabs into the symbol table. */ 1519#ifndef STABS_SYMBOL 1520#define STABS_SYMBOL "@stabs" 1521#endif 1522 1523static const char stabs_symbol[] = STABS_SYMBOL; 1524 1525 1526/* Forward reference for functions. See the definition for more details. */ 1527 1528#ifndef STATIC 1529#define STATIC static 1530#endif 1531 1532STATIC int out_of_bounds (symint_t, symint_t, const char *, int); 1533STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *); 1534STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *, 1535 shash_t **); 1536STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t, 1537 symint_t, symint_t); 1538STATIC symint_t add_ext_symbol (EXTR *, int); 1539STATIC symint_t add_aux_sym_symint (symint_t); 1540STATIC symint_t add_aux_sym_rndx (int, symint_t); 1541STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **); 1542STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t); 1543STATIC void add_unknown_tag (tag_t *); 1544STATIC void add_procedure (const char *, const char *); 1545STATIC void initialize_init_file (void); 1546STATIC void add_file (const char *, const char *); 1547STATIC void add_bytes (varray_t *, char *, Size_t); 1548STATIC void add_varray_page (varray_t *); 1549STATIC void update_headers (void); 1550STATIC void write_varray (varray_t *, off_t, const char *); 1551STATIC void write_object (void); 1552STATIC const char *st_to_string (st_t); 1553STATIC const char *sc_to_string (sc_t); 1554STATIC char *read_line (void); 1555STATIC void parse_input (void); 1556STATIC void mark_stabs (const char *); 1557STATIC void parse_begin (const char *); 1558STATIC void parse_bend (const char *); 1559STATIC void parse_def (const char *); 1560STATIC void parse_end (const char *); 1561STATIC void parse_ent (const char *); 1562STATIC void parse_file (const char *); 1563STATIC void parse_stabs_common (const char *, const char *, const char *); 1564STATIC void parse_stabs (const char *); 1565STATIC void parse_stabn (const char *); 1566STATIC page_t *read_seek (Size_t, off_t, const char *); 1567STATIC void copy_object (void); 1568 1569STATIC void catch_signal (int) ATTRIBUTE_NORETURN; 1570STATIC page_t *allocate_page (void); 1571STATIC page_t *allocate_multiple_pages (Size_t); 1572STATIC void free_multiple_pages (page_t *, Size_t); 1573 1574#ifndef MALLOC_CHECK 1575STATIC page_t *allocate_cluster (Size_t); 1576#endif 1577 1578STATIC forward_t *allocate_forward (void); 1579STATIC scope_t *allocate_scope (void); 1580STATIC shash_t *allocate_shash (void); 1581STATIC tag_t *allocate_tag (void); 1582STATIC thash_t *allocate_thash (void); 1583STATIC thead_t *allocate_thead (void); 1584STATIC vlinks_t *allocate_vlinks (void); 1585 1586STATIC void free_forward (forward_t *); 1587STATIC void free_scope (scope_t *); 1588STATIC void free_tag (tag_t *); 1589STATIC void free_thead (thead_t *); 1590 1591extern char *optarg; 1592extern int optind; 1593extern int opterr; 1594 1595/* List of assembler pseudo ops and beginning sequences that need 1596 special actions. Someday, this should be a hash table, and such, 1597 but for now a linear list of names and calls to memcmp will 1598 do...... */ 1599 1600typedef struct _pseudo_ops { 1601 const char *const name; /* pseudo-op in ascii */ 1602 const int len; /* length of name to compare */ 1603 void (*const func) (const char *); /* function to handle line */ 1604} pseudo_ops_t; 1605 1606static const pseudo_ops_t pseudo_ops[] = { 1607 { "#.def", sizeof("#.def")-1, parse_def }, 1608 { "#.begin", sizeof("#.begin")-1, parse_begin }, 1609 { "#.bend", sizeof("#.bend")-1, parse_bend }, 1610 { ".end", sizeof(".end")-1, parse_end }, 1611 { ".ent", sizeof(".ent")-1, parse_ent }, 1612 { ".file", sizeof(".file")-1, parse_file }, 1613 { "#.stabs", sizeof("#.stabs")-1, parse_stabs }, 1614 { "#.stabn", sizeof("#.stabn")-1, parse_stabn }, 1615 { ".stabs", sizeof(".stabs")-1, parse_stabs }, 1616 { ".stabn", sizeof(".stabn")-1, parse_stabn }, 1617 { "#@stabs", sizeof("#@stabs")-1, mark_stabs }, 1618}; 1619 1620 1621/* Command line options for getopt_long. */ 1622 1623static const struct option options[] = 1624{ 1625 { "version", 0, 0, 'V' }, 1626 { "verbose", 0, 0, 'v' }, 1627 { 0, 0, 0, 0 } 1628}; 1629 1630/* Add a page to a varray object. */ 1631 1632STATIC void 1633add_varray_page (varray_t *vp) 1634{ 1635 vlinks_t *new_links = allocate_vlinks (); 1636 1637#ifdef MALLOC_CHECK 1638 if (vp->object_size > 1) 1639 new_links->datum = xcalloc (1, vp->object_size); 1640 else 1641#endif 1642 new_links->datum = allocate_page (); 1643 1644 alloc_counts[ (int) alloc_type_varray ].total_alloc++; 1645 alloc_counts[ (int) alloc_type_varray ].total_pages++; 1646 1647 new_links->start_index = vp->num_allocated; 1648 vp->objects_last_page = 0; 1649 1650 if (vp->first == (vlinks_t *) 0) /* first allocation? */ 1651 vp->first = vp->last = new_links; 1652 else 1653 { /* 2nd or greater allocation */ 1654 new_links->prev = vp->last; 1655 vp->last->next = new_links; 1656 vp->last = new_links; 1657 } 1658} 1659 1660 1661/* Compute hash code (from tree.c) */ 1662 1663#define HASHBITS 30 1664 1665STATIC shash_t * 1666hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl, 1667 symint_t *ret_hash_index) 1668{ 1669 unsigned long hi; 1670 Ptrdiff_t i; 1671 shash_t *ptr; 1672 int first_ch = *text; 1673 1674 hi = hash_len; 1675 for (i = 0; i < hash_len; i++) 1676 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff); 1677 1678 hi &= (1 << HASHBITS) - 1; 1679 hi %= SHASH_SIZE; 1680 1681 if (ret_hash_index != (symint_t *) 0) 1682 *ret_hash_index = hi; 1683 1684 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next) 1685 if ((symint_t) hash_len == ptr->len 1686 && first_ch == ptr->string[0] 1687 && memcmp (text, ptr->string, hash_len) == 0) 1688 break; 1689 1690 return ptr; 1691} 1692 1693 1694/* Add a string (and null pad) to one of the string tables. A 1695 consequence of hashing strings, is that we don't let strings cross 1696 page boundaries. The extra nulls will be ignored. VP is a string 1697 virtual array, HASH_TBL a pointer to the hash table, the string 1698 starts at START and the position one byte after the string is given 1699 with END_P1, the resulting hash pointer is returned in RET_HASH. */ 1700 1701STATIC symint_t 1702add_string (varray_t *vp, shash_t **hash_tbl, const char *start, 1703 const char *end_p1, shash_t **ret_hash) 1704{ 1705 Ptrdiff_t len = end_p1 - start; 1706 shash_t *hash_ptr; 1707 symint_t hi; 1708 1709 if (len >= (Ptrdiff_t) PAGE_USIZE) 1710 fatal ("string too big (%ld bytes)", (long) len); 1711 1712 hash_ptr = hash_string (start, len, hash_tbl, &hi); 1713 if (hash_ptr == (shash_t *) 0) 1714 { 1715 char *p; 1716 1717 if (vp->objects_last_page + len >= (long) PAGE_USIZE) 1718 { 1719 vp->num_allocated 1720 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; 1721 add_varray_page (vp); 1722 } 1723 1724 hash_ptr = allocate_shash (); 1725 hash_ptr->next = hash_tbl[hi]; 1726 hash_tbl[hi] = hash_ptr; 1727 1728 hash_ptr->len = len; 1729 hash_ptr->indx = vp->num_allocated; 1730 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ]; 1731 1732 vp->objects_last_page += len+1; 1733 vp->num_allocated += len+1; 1734 1735 while (len-- > 0) 1736 *p++ = *start++; 1737 1738 *p = '\0'; 1739 } 1740 1741 if (ret_hash != (shash_t **) 0) 1742 *ret_hash = hash_ptr; 1743 1744 return hash_ptr->indx; 1745} 1746 1747 1748/* Add a local symbol. The symbol string starts at STR_START and the 1749 first byte after it is marked by STR_END_P1. The symbol has type 1750 TYPE and storage class STORAGE and value VALUE. INDX is an index 1751 to local/aux. symbols. */ 1752 1753STATIC symint_t 1754add_local_symbol (const char *str_start, const char *str_end_p1, st_t type, 1755 sc_t storage, symint_t value, symint_t indx) 1756{ 1757 symint_t ret; 1758 SYMR *psym; 1759 scope_t *pscope; 1760 thead_t *ptag_head; 1761 tag_t *ptag; 1762 tag_t *ptag_next; 1763 varray_t *vp = &cur_file_ptr->symbols; 1764 int scope_delta = 0; 1765 shash_t *hash_ptr = (shash_t *) 0; 1766 1767 if (vp->objects_last_page == vp->objects_per_page) 1768 add_varray_page (vp); 1769 1770 psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; 1771 1772 psym->value = value; 1773 psym->st = (unsigned) type; 1774 psym->sc = (unsigned) storage; 1775 psym->index = indx; 1776 psym->iss = (str_start == (const char *) 0) 1777 ? 0 1778 : add_string (&cur_file_ptr->strings, 1779 &cur_file_ptr->shash_head[0], 1780 str_start, 1781 str_end_p1, 1782 &hash_ptr); 1783 1784 ret = vp->num_allocated++; 1785 1786 if (MIPS_IS_STAB (psym)) 1787 return ret; 1788 1789 /* Save the symbol within the hash table if this is a static 1790 item, and it has a name. */ 1791 if (hash_ptr != (shash_t *) 0 1792 && (type == st_Global || type == st_Static || type == st_Label 1793 || type == st_Proc || type == st_StaticProc)) 1794 hash_ptr->sym_ptr = psym; 1795 1796 /* push or pop a scope if appropriate. */ 1797 switch (type) 1798 { 1799 default: 1800 break; 1801 1802 case st_File: /* beginning of file */ 1803 case st_Proc: /* procedure */ 1804 case st_StaticProc: /* static procedure */ 1805 case st_Block: /* begin scope */ 1806 pscope = allocate_scope (); 1807 pscope->prev = cur_file_ptr->cur_scope; 1808 pscope->lsym = psym; 1809 pscope->lnumber = ret; 1810 pscope->type = type; 1811 cur_file_ptr->cur_scope = pscope; 1812 1813 if (type != st_File) 1814 scope_delta = 1; 1815 1816 /* For every block type except file, struct, union, or 1817 enumeration blocks, push a level on the tag stack. We omit 1818 file types, so that tags can span file boundaries. */ 1819 if (type != st_File && storage != sc_Info) 1820 { 1821 ptag_head = allocate_thead (); 1822 ptag_head->first_tag = 0; 1823 ptag_head->prev = cur_tag_head; 1824 cur_tag_head = ptag_head; 1825 } 1826 break; 1827 1828 case st_End: 1829 pscope = cur_file_ptr->cur_scope; 1830 if (pscope == (scope_t *) 0) 1831 error ("internal error, too many st_End's"); 1832 1833 else 1834 { 1835 st_t begin_type = (st_t) pscope->lsym->st; 1836 1837 if (begin_type != st_File) 1838 scope_delta = -1; 1839 1840 /* Except for file, structure, union, or enumeration end 1841 blocks remove all tags created within this scope. */ 1842 if (begin_type != st_File && storage != sc_Info) 1843 { 1844 ptag_head = cur_tag_head; 1845 cur_tag_head = ptag_head->prev; 1846 1847 for (ptag = ptag_head->first_tag; 1848 ptag != (tag_t *) 0; 1849 ptag = ptag_next) 1850 { 1851 if (ptag->forward_ref != (forward_t *) 0) 1852 add_unknown_tag (ptag); 1853 1854 ptag_next = ptag->same_block; 1855 ptag->hash_ptr->tag_ptr = ptag->same_name; 1856 free_tag (ptag); 1857 } 1858 1859 free_thead (ptag_head); 1860 } 1861 1862 cur_file_ptr->cur_scope = pscope->prev; 1863 psym->index = pscope->lnumber; /* blk end gets begin sym # */ 1864 1865 if (storage != sc_Info) 1866 psym->iss = pscope->lsym->iss; /* blk end gets same name */ 1867 1868 if (begin_type == st_File || begin_type == st_Block) 1869 pscope->lsym->index = ret+1; /* block begin gets next sym # */ 1870 1871 /* Functions push two or more aux words as follows: 1872 1st word: index+1 of the end symbol 1873 2nd word: type of the function (plus any aux words needed). 1874 Also, tie the external pointer back to the function begin symbol. */ 1875 else 1876 { 1877 symint_t type; 1878 pscope->lsym->index = add_aux_sym_symint (ret+1); 1879 type = add_aux_sym_tir (&last_func_type_info, 1880 hash_no, 1881 &cur_file_ptr->thash_head[0]); 1882 if (last_func_eptr) 1883 { 1884 last_func_eptr->ifd = cur_file_ptr->file_index; 1885 1886 /* The index for an external st_Proc symbol is the index 1887 of the st_Proc symbol in the local symbol table. */ 1888 last_func_eptr->asym.index = psym->index; 1889 } 1890 } 1891 1892 free_scope (pscope); 1893 } 1894 } 1895 1896 cur_file_ptr->nested_scopes += scope_delta; 1897 1898 if (debug && type != st_File 1899 && (debug > 2 || type == st_Block || type == st_End 1900 || type == st_Proc || type == st_StaticProc)) 1901 { 1902 const char *sc_str = sc_to_string (storage); 1903 const char *st_str = st_to_string (type); 1904 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); 1905 1906 fprintf (stderr, 1907 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", 1908 value, depth, sc_str); 1909 1910 if (str_start && str_end_p1 - str_start > 0) 1911 fprintf (stderr, " st= %-11s name= %.*s\n", 1912 st_str, (int) (str_end_p1 - str_start), str_start); 1913 else 1914 { 1915 Size_t len = strlen (st_str); 1916 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str); 1917 } 1918 } 1919 1920 return ret; 1921} 1922 1923 1924/* Add an external symbol with symbol pointer ESYM and file index 1925 IFD. */ 1926 1927STATIC symint_t 1928add_ext_symbol (EXTR *esym, int ifd) 1929{ 1930 const char *str_start; /* first byte in string */ 1931 const char *str_end_p1; /* first byte after string */ 1932 EXTR *psym; 1933 varray_t *vp = &ext_symbols; 1934 shash_t *hash_ptr = (shash_t *) 0; 1935 1936 str_start = ORIG_ESTRS (esym->asym.iss); 1937 str_end_p1 = str_start + strlen (str_start); 1938 1939 if (debug > 1) 1940 { 1941 long value = esym->asym.value; 1942 const char *sc_str = sc_to_string (esym->asym.sc); 1943 const char *st_str = st_to_string (esym->asym.st); 1944 1945 fprintf (stderr, 1946 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s", 1947 value, ifd, sc_str); 1948 1949 if (str_start && str_end_p1 - str_start > 0) 1950 fprintf (stderr, " st= %-11s name= %.*s\n", 1951 st_str, (int) (str_end_p1 - str_start), str_start); 1952 else 1953 fprintf (stderr, " st= %s\n", st_str); 1954 } 1955 1956 if (vp->objects_last_page == vp->objects_per_page) 1957 add_varray_page (vp); 1958 1959 psym = &vp->last->datum->esym[ vp->objects_last_page++ ]; 1960 1961 *psym = *esym; 1962 psym->ifd = ifd; 1963 psym->asym.index = indexNil; 1964 psym->asym.iss = (str_start == (const char *) 0) 1965 ? 0 1966 : add_string (&ext_strings, 1967 &ext_str_hash[0], 1968 str_start, 1969 str_end_p1, 1970 &hash_ptr); 1971 1972 hash_ptr->esym_ptr = psym; 1973 return vp->num_allocated++; 1974} 1975 1976 1977/* Add an auxiliary symbol (passing a symint). */ 1978 1979STATIC symint_t 1980add_aux_sym_symint (symint_t aux_word) 1981{ 1982 AUXU *aux_ptr; 1983 efdr_t *file_ptr = cur_file_ptr; 1984 varray_t *vp = &file_ptr->aux_syms; 1985 1986 if (vp->objects_last_page == vp->objects_per_page) 1987 add_varray_page (vp); 1988 1989 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 1990 aux_ptr->isym = aux_word; 1991 1992 return vp->num_allocated++; 1993} 1994 1995 1996/* Add an auxiliary symbol (passing a file/symbol index combo). */ 1997 1998STATIC symint_t 1999add_aux_sym_rndx (int file_index, symint_t sym_index) 2000{ 2001 AUXU *aux_ptr; 2002 efdr_t *file_ptr = cur_file_ptr; 2003 varray_t *vp = &file_ptr->aux_syms; 2004 2005 if (vp->objects_last_page == vp->objects_per_page) 2006 add_varray_page (vp); 2007 2008 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2009 aux_ptr->rndx.rfd = file_index; 2010 aux_ptr->rndx.index = sym_index; 2011 2012 return vp->num_allocated++; 2013} 2014 2015 2016/* Add an auxiliary symbol (passing the basic type and possibly 2017 type qualifiers). */ 2018 2019STATIC symint_t 2020add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl) 2021{ 2022 AUXU *aux_ptr; 2023 efdr_t *file_ptr = cur_file_ptr; 2024 varray_t *vp = &file_ptr->aux_syms; 2025 static AUXU init_aux; 2026 symint_t ret; 2027 int i; 2028 AUXU aux; 2029 2030 aux = init_aux; 2031 aux.ti.bt = (int) t->basic_type; 2032 aux.ti.continued = 0; 2033 aux.ti.fBitfield = t->bitfield; 2034 2035 aux.ti.tq0 = (int) t->type_qualifiers[0]; 2036 aux.ti.tq1 = (int) t->type_qualifiers[1]; 2037 aux.ti.tq2 = (int) t->type_qualifiers[2]; 2038 aux.ti.tq3 = (int) t->type_qualifiers[3]; 2039 aux.ti.tq4 = (int) t->type_qualifiers[4]; 2040 aux.ti.tq5 = (int) t->type_qualifiers[5]; 2041 2042 2043 /* For anything that adds additional information, we must not hash, 2044 so check here, and reset our state. */ 2045 2046 if (state != hash_no 2047 && (t->type_qualifiers[0] == tq_Array 2048 || t->type_qualifiers[1] == tq_Array 2049 || t->type_qualifiers[2] == tq_Array 2050 || t->type_qualifiers[3] == tq_Array 2051 || t->type_qualifiers[4] == tq_Array 2052 || t->type_qualifiers[5] == tq_Array 2053 || t->basic_type == bt_Struct 2054 || t->basic_type == bt_Union 2055 || t->basic_type == bt_Enum 2056 || t->bitfield 2057 || t->num_dims > 0)) 2058 state = hash_no; 2059 2060 /* See if we can hash this type, and save some space, but some types 2061 can't be hashed (because they contain arrays or continuations), 2062 and others can be put into the hash list, but cannot use existing 2063 types because other aux entries precede this one. */ 2064 2065 if (state != hash_no) 2066 { 2067 thash_t *hash_ptr; 2068 symint_t hi; 2069 2070 hi = aux.isym & ((1 << HASHBITS) - 1); 2071 hi %= THASH_SIZE; 2072 2073 for (hash_ptr = hash_tbl[hi]; 2074 hash_ptr != (thash_t *) 0; 2075 hash_ptr = hash_ptr->next) 2076 { 2077 if (aux.isym == hash_ptr->type.isym) 2078 break; 2079 } 2080 2081 if (hash_ptr != (thash_t *) 0 && state == hash_yes) 2082 return hash_ptr->indx; 2083 2084 if (hash_ptr == (thash_t *) 0) 2085 { 2086 hash_ptr = allocate_thash (); 2087 hash_ptr->next = hash_tbl[hi]; 2088 hash_ptr->type = aux; 2089 hash_ptr->indx = vp->num_allocated; 2090 hash_tbl[hi] = hash_ptr; 2091 } 2092 } 2093 2094 /* Everything is set up, add the aux symbol. */ 2095 if (vp->objects_last_page == vp->objects_per_page) 2096 add_varray_page (vp); 2097 2098 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2099 *aux_ptr = aux; 2100 2101 ret = vp->num_allocated++; 2102 2103 /* Add bitfield length if it exists. 2104 2105 NOTE: Mips documentation claims bitfield goes at the end of the 2106 AUX record, but the DECstation compiler emits it here. 2107 (This would only make a difference for enum bitfields.) 2108 2109 Also note: We use the last size given since gcc may emit 2 2110 for an enum bitfield. */ 2111 2112 if (t->bitfield) 2113 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]); 2114 2115 2116 /* Add tag information if needed. Structure, union, and enum 2117 references add 2 aux symbols: a [file index, symbol index] 2118 pointer to the structure type, and the current file index. */ 2119 2120 if (t->basic_type == bt_Struct 2121 || t->basic_type == bt_Union 2122 || t->basic_type == bt_Enum) 2123 { 2124 symint_t file_index = t->tag_ptr->ifd; 2125 symint_t sym_index = t->tag_ptr->indx; 2126 2127 if (t->unknown_tag) 2128 { 2129 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2130 (void) add_aux_sym_symint ((symint_t)-1); 2131 } 2132 else if (sym_index != indexNil) 2133 { 2134 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2135 (void) add_aux_sym_symint (file_index); 2136 } 2137 else 2138 { 2139 forward_t *forward_ref = allocate_forward (); 2140 2141 forward_ref->type_ptr = aux_ptr; 2142 forward_ref->next = t->tag_ptr->forward_ref; 2143 t->tag_ptr->forward_ref = forward_ref; 2144 2145 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2146 forward_ref->index_ptr 2147 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2148 2149 (void) add_aux_sym_symint (file_index); 2150 forward_ref->ifd_ptr 2151 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2152 } 2153 } 2154 2155 /* Add information about array bounds if they exist. */ 2156 for (i = 0; i < t->num_dims; i++) 2157 { 2158 (void) add_aux_sym_rndx (ST_RFDESCAPE, 2159 cur_file_ptr->int_type); 2160 2161 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ 2162 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ 2163 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ 2164 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ 2165 ? 0 2166 : (t->sizes[i] * 8) / t->dimensions[i]); 2167 }; 2168 2169 /* NOTE: Mips documentation claims that the bitfield width goes here. 2170 But it needs to be emitted earlier. */ 2171 2172 return ret; 2173} 2174 2175 2176/* Add a tag to the tag table (unless it already exists). */ 2177 2178STATIC tag_t * 2179get_tag (const char *tag_start, /* 1st byte of tag name */ 2180 const char *tag_end_p1, /* 1st byte after tag name */ 2181 symint_t indx, /* index of tag start block */ 2182 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */ 2183 2184{ 2185 shash_t *hash_ptr; 2186 tag_t *tag_ptr; 2187 hash_ptr = hash_string (tag_start, 2188 tag_end_p1 - tag_start, 2189 &tag_hash[0], 2190 (symint_t *) 0); 2191 2192 if (hash_ptr != (shash_t *) 0 2193 && hash_ptr->tag_ptr != (tag_t *) 0) 2194 { 2195 tag_ptr = hash_ptr->tag_ptr; 2196 if (indx != indexNil) 2197 { 2198 tag_ptr->basic_type = basic_type; 2199 tag_ptr->ifd = cur_file_ptr->file_index; 2200 tag_ptr->indx = indx; 2201 } 2202 return tag_ptr; 2203 } 2204 2205 (void) add_string (&tag_strings, 2206 &tag_hash[0], 2207 tag_start, 2208 tag_end_p1, 2209 &hash_ptr); 2210 2211 tag_ptr = allocate_tag (); 2212 tag_ptr->forward_ref = (forward_t *) 0; 2213 tag_ptr->hash_ptr = hash_ptr; 2214 tag_ptr->same_name = hash_ptr->tag_ptr; 2215 tag_ptr->basic_type = basic_type; 2216 tag_ptr->indx = indx; 2217 tag_ptr->ifd = (indx == indexNil 2218 ? (symint_t) -1 : cur_file_ptr->file_index); 2219 tag_ptr->same_block = cur_tag_head->first_tag; 2220 2221 cur_tag_head->first_tag = tag_ptr; 2222 hash_ptr->tag_ptr = tag_ptr; 2223 2224 return tag_ptr; 2225} 2226 2227 2228/* Add an unknown {struct, union, enum} tag. */ 2229 2230STATIC void 2231add_unknown_tag (tag_t *ptag) 2232{ 2233 shash_t *hash_ptr = ptag->hash_ptr; 2234 char *name_start = hash_ptr->string; 2235 char *name_end_p1 = name_start + hash_ptr->len; 2236 forward_t *f_next = ptag->forward_ref; 2237 forward_t *f_cur; 2238 int sym_index; 2239 int file_index = cur_file_ptr->file_index; 2240 2241 if (debug > 1) 2242 { 2243 const char *agg_type = "{unknown aggregate type}"; 2244 switch (ptag->basic_type) 2245 { 2246 case bt_Struct: agg_type = "struct"; break; 2247 case bt_Union: agg_type = "union"; break; 2248 case bt_Enum: agg_type = "enum"; break; 2249 default: break; 2250 } 2251 2252 fprintf (stderr, "unknown %s %.*s found\n", 2253 agg_type, (int) hash_ptr->len, name_start); 2254 } 2255 2256 sym_index = add_local_symbol (name_start, 2257 name_end_p1, 2258 st_Block, 2259 sc_Info, 2260 (symint_t) 0, 2261 (symint_t) 0); 2262 2263 (void) add_local_symbol (name_start, 2264 name_end_p1, 2265 st_End, 2266 sc_Info, 2267 (symint_t) 0, 2268 (symint_t) 0); 2269 2270 while (f_next != (forward_t *) 0) 2271 { 2272 f_cur = f_next; 2273 f_next = f_next->next; 2274 2275 f_cur->ifd_ptr->isym = file_index; 2276 f_cur->index_ptr->rndx.index = sym_index; 2277 2278 free_forward (f_cur); 2279 } 2280 2281 return; 2282} 2283 2284 2285/* Add a procedure to the current file's list of procedures, and record 2286 this is the current procedure. If the assembler created a PDR for 2287 this procedure, use that to initialize the current PDR. */ 2288 2289STATIC void 2290add_procedure (const char *func_start, /* 1st byte of func name */ 2291 const char *func_end_p1) /* 1st byte after func name */ 2292{ 2293 PDR *new_proc_ptr; 2294 efdr_t *file_ptr = cur_file_ptr; 2295 varray_t *vp = &file_ptr->procs; 2296 symint_t value = 0; 2297 st_t proc_type = st_Proc; 2298 shash_t *shash_ptr = hash_string (func_start, 2299 func_end_p1 - func_start, 2300 &orig_str_hash[0], 2301 (symint_t *) 0); 2302 2303 if (debug) 2304 fputc ('\n', stderr); 2305 2306 if (vp->objects_last_page == vp->objects_per_page) 2307 add_varray_page (vp); 2308 2309 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ]; 2310 2311 vp->num_allocated++; 2312 2313 2314 /* Did the assembler create this procedure? If so, get the PDR information. */ 2315 cur_oproc_ptr = (PDR *) 0; 2316 if (shash_ptr != (shash_t *) 0) 2317 { 2318 PDR *old_proc_ptr = shash_ptr->proc_ptr; 2319 SYMR *sym_ptr = shash_ptr->sym_ptr; 2320 2321 if (old_proc_ptr != (PDR *) 0 2322 && sym_ptr != (SYMR *) 0 2323 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc)) 2324 { 2325 cur_oproc_begin = sym_ptr; 2326 cur_oproc_end = shash_ptr->end_ptr; 2327 value = sym_ptr->value; 2328 2329 cur_oproc_ptr = old_proc_ptr; 2330 proc_type = (st_t) sym_ptr->st; 2331 *new_proc_ptr = *old_proc_ptr; /* initialize */ 2332 } 2333 } 2334 2335 if (cur_oproc_ptr == (PDR *) 0) 2336 error ("did not find a PDR block for %.*s", 2337 (int) (func_end_p1 - func_start), func_start); 2338 2339 /* Determine the start of symbols. */ 2340 new_proc_ptr->isym = file_ptr->symbols.num_allocated; 2341 2342 /* Push the start of the function. */ 2343 (void) add_local_symbol (func_start, func_end_p1, 2344 proc_type, sc_Text, 2345 value, 2346 (symint_t) 0); 2347} 2348 2349 2350/* Initialize the init_file structure. */ 2351 2352STATIC void 2353initialize_init_file (void) 2354{ 2355 memset (&init_file, 0, sizeof (init_file)); 2356 2357 init_file.fdr.lang = langC; 2358 init_file.fdr.fMerge = 1; 2359 init_file.fdr.glevel = GLEVEL_2; 2360 2361#ifdef WORDS_BIG_ENDIAN 2362 init_file.fdr.fBigendian = 1; 2363#endif 2364 2365 INITIALIZE_VARRAY (&init_file.strings, char); 2366 INITIALIZE_VARRAY (&init_file.symbols, SYMR); 2367 INITIALIZE_VARRAY (&init_file.procs, PDR); 2368 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU); 2369 2370 init_file_initialized = 1; 2371} 2372 2373/* Add a new filename, and set up all of the file relative 2374 virtual arrays (strings, symbols, aux syms, etc.). Record 2375 where the current file structure lives. */ 2376 2377STATIC void 2378add_file (const char *file_start, /* first byte in string */ 2379 const char *file_end_p1) /* first byte after string */ 2380{ 2381 static char zero_bytes[2] = { '\0', '\0' }; 2382 2383 Ptrdiff_t len = file_end_p1 - file_start; 2384 int first_ch = *file_start; 2385 efdr_t *file_ptr; 2386 2387 if (debug) 2388 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start); 2389 2390 /* See if the file has already been created. */ 2391 for (file_ptr = first_file; 2392 file_ptr != (efdr_t *) 0; 2393 file_ptr = file_ptr->next_file) 2394 { 2395 if (first_ch == file_ptr->name[0] 2396 && file_ptr->name[len] == '\0' 2397 && memcmp (file_start, file_ptr->name, len) == 0) 2398 { 2399 cur_file_ptr = file_ptr; 2400 break; 2401 } 2402 } 2403 2404 /* If this is a new file, create it. */ 2405 if (file_ptr == (efdr_t *) 0) 2406 { 2407 if (file_desc.objects_last_page == file_desc.objects_per_page) 2408 add_varray_page (&file_desc); 2409 2410 if (! init_file_initialized) 2411 initialize_init_file (); 2412 2413 file_ptr = cur_file_ptr 2414 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ]; 2415 *file_ptr = init_file; 2416 2417 file_ptr->file_index = file_desc.num_allocated++; 2418 2419 /* Allocate the string hash table. */ 2420 file_ptr->shash_head = (shash_t **) allocate_page (); 2421 2422 /* Make sure 0 byte in string table is null */ 2423 add_string (&file_ptr->strings, 2424 &file_ptr->shash_head[0], 2425 &zero_bytes[0], 2426 &zero_bytes[0], 2427 (shash_t **) 0); 2428 2429 if (file_end_p1 - file_start > (long) PAGE_USIZE-2) 2430 fatal ("filename goes over one page boundary"); 2431 2432 /* Push the start of the filename. We assume that the filename 2433 will be stored at string offset 1. */ 2434 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text, 2435 (symint_t) 0, (symint_t) 0); 2436 file_ptr->fdr.rss = 1; 2437 file_ptr->name = &file_ptr->strings.last->datum->byte[1]; 2438 file_ptr->name_len = file_end_p1 - file_start; 2439 2440 /* Update the linked list of file descriptors. */ 2441 *last_file_ptr = file_ptr; 2442 last_file_ptr = &file_ptr->next_file; 2443 2444 /* Add void & int types to the file (void should be first to catch 2445 errant 0's within the index fields). */ 2446 file_ptr->void_type = add_aux_sym_tir (&void_type_info, 2447 hash_yes, 2448 &cur_file_ptr->thash_head[0]); 2449 2450 file_ptr->int_type = add_aux_sym_tir (&int_type_info, 2451 hash_yes, 2452 &cur_file_ptr->thash_head[0]); 2453 } 2454} 2455 2456 2457/* Add a stream of random bytes to a varray. */ 2458 2459STATIC void 2460add_bytes (varray_t *vp, /* virtual array to add too */ 2461 char *input_ptr, /* start of the bytes */ 2462 Size_t nitems) /* # items to move */ 2463{ 2464 Size_t move_items; 2465 Size_t move_bytes; 2466 char *ptr; 2467 2468 while (nitems > 0) 2469 { 2470 if (vp->objects_last_page >= vp->objects_per_page) 2471 add_varray_page (vp); 2472 2473 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ]; 2474 move_items = vp->objects_per_page - vp->objects_last_page; 2475 if (move_items > nitems) 2476 move_items = nitems; 2477 2478 move_bytes = move_items * vp->object_size; 2479 nitems -= move_items; 2480 2481 if (move_bytes >= 32) 2482 { 2483 (void) memcpy (ptr, input_ptr, move_bytes); 2484 input_ptr += move_bytes; 2485 } 2486 else 2487 { 2488 while (move_bytes-- > 0) 2489 *ptr++ = *input_ptr++; 2490 } 2491 } 2492} 2493 2494 2495/* Convert storage class to string. */ 2496 2497STATIC const char * 2498sc_to_string (sc_t storage_class) 2499{ 2500 switch (storage_class) 2501 { 2502 case sc_Nil: return "Nil,"; 2503 case sc_Text: return "Text,"; 2504 case sc_Data: return "Data,"; 2505 case sc_Bss: return "Bss,"; 2506 case sc_Register: return "Register,"; 2507 case sc_Abs: return "Abs,"; 2508 case sc_Undefined: return "Undefined,"; 2509 case sc_CdbLocal: return "CdbLocal,"; 2510 case sc_Bits: return "Bits,"; 2511 case sc_CdbSystem: return "CdbSystem,"; 2512 case sc_RegImage: return "RegImage,"; 2513 case sc_Info: return "Info,"; 2514 case sc_UserStruct: return "UserStruct,"; 2515 case sc_SData: return "SData,"; 2516 case sc_SBss: return "SBss,"; 2517 case sc_RData: return "RData,"; 2518 case sc_Var: return "Var,"; 2519 case sc_Common: return "Common,"; 2520 case sc_SCommon: return "SCommon,"; 2521 case sc_VarRegister: return "VarRegister,"; 2522 case sc_Variant: return "Variant,"; 2523 case sc_SUndefined: return "SUndefined,"; 2524 case sc_Init: return "Init,"; 2525 case sc_Max: return "Max,"; 2526 } 2527 2528 return "???,"; 2529} 2530 2531 2532/* Convert symbol type to string. */ 2533 2534STATIC const char * 2535st_to_string (st_t symbol_type) 2536{ 2537 switch (symbol_type) 2538 { 2539 case st_Nil: return "Nil,"; 2540 case st_Global: return "Global,"; 2541 case st_Static: return "Static,"; 2542 case st_Param: return "Param,"; 2543 case st_Local: return "Local,"; 2544 case st_Label: return "Label,"; 2545 case st_Proc: return "Proc,"; 2546 case st_Block: return "Block,"; 2547 case st_End: return "End,"; 2548 case st_Member: return "Member,"; 2549 case st_Typedef: return "Typedef,"; 2550 case st_File: return "File,"; 2551 case st_RegReloc: return "RegReloc,"; 2552 case st_Forward: return "Forward,"; 2553 case st_StaticProc: return "StaticProc,"; 2554 case st_Constant: return "Constant,"; 2555 case st_Str: return "String,"; 2556 case st_Number: return "Number,"; 2557 case st_Expr: return "Expr,"; 2558 case st_Type: return "Type,"; 2559 case st_Max: return "Max,"; 2560 } 2561 2562 return "???,"; 2563} 2564 2565 2566/* Read a line from standard input, and return the start of the buffer 2567 (which is grows if the line is too big). We split lines at the 2568 semi-colon, and return each logical line independently. */ 2569 2570STATIC char * 2571read_line (void) 2572{ 2573 static int line_split_p = 0; 2574 int string_p = 0; 2575 int comment_p = 0; 2576 int ch; 2577 char *ptr; 2578 2579 if (cur_line_start == (char *) 0) 2580 { /* allocate initial page */ 2581 cur_line_start = (char *) allocate_page (); 2582 cur_line_alloc = PAGE_SIZE; 2583 } 2584 2585 if (!line_split_p) 2586 line_number++; 2587 2588 line_split_p = 0; 2589 cur_line_nbytes = 0; 2590 2591 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch) 2592 { 2593 if (++cur_line_nbytes >= cur_line_alloc-1) 2594 { 2595 int num_pages = cur_line_alloc / PAGE_SIZE; 2596 char *old_buffer = cur_line_start; 2597 2598 cur_line_alloc += PAGE_SIZE; 2599 cur_line_start = (char *) allocate_multiple_pages (num_pages+1); 2600 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE); 2601 2602 ptr = cur_line_start + cur_line_nbytes - 1; 2603 } 2604 2605 if (ch == '\n') 2606 { 2607 *ptr++ = '\n'; 2608 *ptr = '\0'; 2609 cur_line_ptr = cur_line_start; 2610 return cur_line_ptr; 2611 } 2612 2613 else if (ch == '\0') 2614 error ("null character found in input"); 2615 2616 else if (!comment_p) 2617 { 2618 if (ch == '"') 2619 string_p = !string_p; 2620 2621 else if (ch == '#') 2622 comment_p++; 2623 2624 else if (ch == ';' && !string_p) 2625 { 2626 line_split_p = 1; 2627 *ptr++ = '\n'; 2628 *ptr = '\0'; 2629 cur_line_ptr = cur_line_start; 2630 return cur_line_ptr; 2631 } 2632 } 2633 } 2634 2635 if (ferror (stdin)) 2636 pfatal_with_name (input_name); 2637 2638 cur_line_ptr = (char *) 0; 2639 return (char *) 0; 2640} 2641 2642 2643/* Parse #.begin directives which have a label as the first argument 2644 which gives the location of the start of the block. */ 2645 2646STATIC void 2647parse_begin (const char *start) 2648{ 2649 const char *end_p1; /* end of label */ 2650 int ch; 2651 shash_t *hash_ptr; /* hash pointer to lookup label */ 2652 2653 if (cur_file_ptr == (efdr_t *) 0) 2654 { 2655 error ("#.begin directive without a preceding .file directive"); 2656 return; 2657 } 2658 2659 if (cur_proc_ptr == (PDR *) 0) 2660 { 2661 error ("#.begin directive without a preceding .ent directive"); 2662 return; 2663 } 2664 2665 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2666 ; 2667 2668 hash_ptr = hash_string (start, 2669 end_p1 - start, 2670 &orig_str_hash[0], 2671 (symint_t *) 0); 2672 2673 if (hash_ptr == (shash_t *) 0) 2674 { 2675 error ("label %.*s not found for #.begin", 2676 (int) (end_p1 - start), start); 2677 return; 2678 } 2679 2680 if (cur_oproc_begin == (SYMR *) 0) 2681 { 2682 error ("procedure table %.*s not found for #.begin", 2683 (int) (end_p1 - start), start); 2684 return; 2685 } 2686 2687 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2688 st_Block, sc_Text, 2689 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2690 (symint_t) 0); 2691} 2692 2693 2694/* Parse #.bend directives which have a label as the first argument 2695 which gives the location of the end of the block. */ 2696 2697STATIC void 2698parse_bend (const char *start) 2699{ 2700 const char *end_p1; /* end of label */ 2701 int ch; 2702 shash_t *hash_ptr; /* hash pointer to lookup label */ 2703 2704 if (cur_file_ptr == (efdr_t *) 0) 2705 { 2706 error ("#.begin directive without a preceding .file directive"); 2707 return; 2708 } 2709 2710 if (cur_proc_ptr == (PDR *) 0) 2711 { 2712 error ("#.bend directive without a preceding .ent directive"); 2713 return; 2714 } 2715 2716 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2717 ; 2718 2719 hash_ptr = hash_string (start, 2720 end_p1 - start, 2721 &orig_str_hash[0], 2722 (symint_t *) 0); 2723 2724 if (hash_ptr == (shash_t *) 0) 2725 { 2726 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start); 2727 return; 2728 } 2729 2730 if (cur_oproc_begin == (SYMR *) 0) 2731 { 2732 error ("procedure table %.*s not found for #.bend", 2733 (int) (end_p1 - start), start); 2734 return; 2735 } 2736 2737 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2738 st_End, sc_Text, 2739 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2740 (symint_t) 0); 2741} 2742 2743 2744/* Parse #.def directives, which are contain standard COFF subdirectives 2745 to describe the debugging format. These subdirectives include: 2746 2747 .scl specify storage class 2748 .val specify a value 2749 .endef specify end of COFF directives 2750 .type specify the type 2751 .size specify the size of an array 2752 .dim specify an array dimension 2753 .tag specify a tag for a struct, union, or enum. */ 2754 2755STATIC void 2756parse_def (const char *name_start) 2757{ 2758 const char *dir_start; /* start of current directive*/ 2759 const char *dir_end_p1; /* end+1 of current directive*/ 2760 const char *arg_start; /* start of current argument */ 2761 const char *arg_end_p1; /* end+1 of current argument */ 2762 const char *name_end_p1; /* end+1 of label */ 2763 const char *tag_start = 0; /* start of tag name */ 2764 const char *tag_end_p1 = 0; /* end+1 of tag name */ 2765 sc_t storage_class = sc_Nil; 2766 st_t symbol_type = st_Nil; 2767 type_info_t t; 2768 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/ 2769 int is_function = 0; /* != 0 if function */ 2770 symint_t value = 0; 2771 symint_t indx = cur_file_ptr->void_type; 2772 int error_line = 0; 2773 symint_t arg_number; 2774 symint_t temp_array[ N_TQ ]; 2775 int arg_was_number; 2776 int ch, i; 2777 Ptrdiff_t len; 2778 2779 static int inside_enumeration = 0; /* is this an enumeration? */ 2780 2781 2782 /* Initialize the type information. */ 2783 t = type_info_init; 2784 2785 2786 /* Search for the end of the name being defined. */ 2787 /* Allow spaces and such in names for G++ templates, which produce stabs 2788 that look like: 2789 2790 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */ 2791 2792 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++) 2793 ; 2794 2795 if (ch == '\0') 2796 { 2797 error_line = __LINE__; 2798 saber_stop (); 2799 goto bomb_out; 2800 } 2801 2802 /* Parse the remaining subdirectives now. */ 2803 dir_start = name_end_p1+1; 2804 for (;;) 2805 { 2806 while ((ch = *dir_start) == ' ' || ch == '\t') 2807 ++dir_start; 2808 2809 if (ch != '.') 2810 { 2811 error_line = __LINE__; 2812 saber_stop (); 2813 goto bomb_out; 2814 } 2815 2816 /* Are we done? */ 2817 if (dir_start[1] == 'e' 2818 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0) 2819 break; 2820 2821 /* Pick up the subdirective now. */ 2822 for (dir_end_p1 = dir_start+1; 2823 (ch = *dir_end_p1) != ' ' && ch != '\t'; 2824 dir_end_p1++) 2825 { 2826 if (ch == '\0' || ISSPACE (ch)) 2827 { 2828 error_line = __LINE__; 2829 saber_stop (); 2830 goto bomb_out; 2831 } 2832 } 2833 2834 /* Pick up the subdirective argument now. */ 2835 arg_was_number = arg_number = 0; 2836 arg_end_p1 = 0; 2837 arg_start = dir_end_p1+1; 2838 ch = *arg_start; 2839 while (ch == ' ' || ch == '\t') 2840 ch = *++arg_start; 2841 2842 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2843 { 2844 int ch2; 2845 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2846 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2847 arg_was_number++; 2848 } 2849 2850 else if (ch == '\0' || ISSPACE (ch)) 2851 { 2852 error_line = __LINE__; 2853 saber_stop (); 2854 goto bomb_out; 2855 } 2856 2857 if (!arg_was_number) 2858 { 2859 /* Allow spaces and such in names for G++ templates. */ 2860 for (arg_end_p1 = arg_start+1; 2861 (ch = *arg_end_p1) != ';' && ch != '\0'; 2862 arg_end_p1++) 2863 ; 2864 2865 if (ch == '\0') 2866 { 2867 error_line = __LINE__; 2868 saber_stop (); 2869 goto bomb_out; 2870 } 2871 } 2872 2873 /* Classify the directives now. */ 2874 len = dir_end_p1 - dir_start; 2875 switch (dir_start[1]) 2876 { 2877 default: 2878 error_line = __LINE__; 2879 saber_stop (); 2880 goto bomb_out; 2881 2882 case 'd': 2883 if (len == sizeof (".dim")-1 2884 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0 2885 && arg_was_number) 2886 { 2887 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 2888 2889 *t_ptr = arg_number; 2890 while (*arg_end_p1 == ',' && arg_was_number) 2891 { 2892 arg_start = arg_end_p1+1; 2893 ch = *arg_start; 2894 while (ch == ' ' || ch == '\t') 2895 ch = *++arg_start; 2896 2897 arg_was_number = 0; 2898 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2899 { 2900 int ch2; 2901 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2902 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2903 arg_was_number++; 2904 2905 if (t_ptr == &temp_array[0]) 2906 { 2907 error_line = __LINE__; 2908 saber_stop (); 2909 goto bomb_out; 2910 } 2911 2912 *--t_ptr = arg_number; 2913 } 2914 } 2915 2916 /* Reverse order of dimensions. */ 2917 while (t_ptr <= &temp_array[ N_TQ-1 ]) 2918 { 2919 if (t.num_dims >= N_TQ-1) 2920 { 2921 error_line = __LINE__; 2922 saber_stop (); 2923 goto bomb_out; 2924 } 2925 2926 t.dimensions[ t.num_dims++ ] = *t_ptr++; 2927 } 2928 break; 2929 } 2930 else 2931 { 2932 error_line = __LINE__; 2933 saber_stop (); 2934 goto bomb_out; 2935 } 2936 2937 2938 case 's': 2939 if (len == sizeof (".scl")-1 2940 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0 2941 && arg_was_number 2942 && arg_number < ((symint_t) C_MAX)) 2943 { 2944 /* If the symbol is a static or external, we have 2945 already gotten the appropriate type and class, so 2946 make sure we don't override those values. This is 2947 needed because there are some type and classes that 2948 are not in COFF, such as short data, etc. */ 2949 if (symbol_type == st_Nil) 2950 { 2951 symbol_type = map_coff_sym_type[arg_number]; 2952 storage_class = map_coff_storage [arg_number]; 2953 } 2954 break; 2955 } 2956 2957 else if (len == sizeof (".size")-1 2958 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0 2959 && arg_was_number) 2960 { 2961 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 2962 2963 *t_ptr = arg_number; 2964 while (*arg_end_p1 == ',' && arg_was_number) 2965 { 2966 arg_start = arg_end_p1+1; 2967 ch = *arg_start; 2968 while (ch == ' ' || ch == '\t') 2969 ch = *++arg_start; 2970 2971 arg_was_number = 0; 2972 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2973 { 2974 int ch2; 2975 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2976 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2977 arg_was_number++; 2978 2979 if (t_ptr == &temp_array[0]) 2980 { 2981 error_line = __LINE__; 2982 saber_stop (); 2983 goto bomb_out; 2984 } 2985 2986 *--t_ptr = arg_number; 2987 } 2988 } 2989 2990 /* Reverse order of sizes. */ 2991 while (t_ptr <= &temp_array[ N_TQ-1 ]) 2992 { 2993 if (t.num_sizes >= N_TQ-1) 2994 { 2995 error_line = __LINE__; 2996 saber_stop (); 2997 goto bomb_out; 2998 } 2999 3000 t.sizes[ t.num_sizes++ ] = *t_ptr++; 3001 } 3002 break; 3003 } 3004 3005 else 3006 { 3007 error_line = __LINE__; 3008 saber_stop (); 3009 goto bomb_out; 3010 } 3011 3012 3013 case 't': 3014 if (len == sizeof (".type")-1 3015 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0 3016 && arg_was_number) 3017 { 3018 tq_t *tq_ptr = &t.type_qualifiers[0]; 3019 3020 t.orig_type = (coff_type_t) (arg_number & N_BTMASK); 3021 t.basic_type = map_coff_types [(int) t.orig_type]; 3022 for (i = N_TQ-1; i >= 0; i--) 3023 { 3024 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT) 3025 & N_TMASK); 3026 3027 if (dt != (int) DT_NON) 3028 *tq_ptr++ = map_coff_derived_type [dt]; 3029 } 3030 3031 /* If this is a function, ignore it, so that we don't get 3032 two entries (one from the .ent, and one for the .def 3033 that precedes it). Save the type information so that 3034 the end block can properly add it after the begin block 3035 index. For MIPS knows what reason, we must strip off 3036 the function type at this point. */ 3037 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc) 3038 { 3039 is_function = 1; 3040 tq_ptr[-1] = tq_Nil; 3041 } 3042 3043 break; 3044 } 3045 3046 else if (len == sizeof (".tag")-1 3047 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0) 3048 { 3049 tag_start = arg_start; 3050 tag_end_p1 = arg_end_p1; 3051 break; 3052 } 3053 3054 else 3055 { 3056 error_line = __LINE__; 3057 saber_stop (); 3058 goto bomb_out; 3059 } 3060 3061 3062 case 'v': 3063 if (len == sizeof (".val")-1 3064 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0) 3065 { 3066 if (arg_was_number) 3067 value = arg_number; 3068 3069 /* If the value is not an integer value, it must be the 3070 name of a static or global item. Look up the name in 3071 the original symbol table to pick up the storage 3072 class, symbol type, etc. */ 3073 else 3074 { 3075 shash_t *orig_hash_ptr; /* hash within orig sym table*/ 3076 shash_t *ext_hash_ptr; /* hash within ext. sym table*/ 3077 3078 ext_hash_ptr = hash_string (arg_start, 3079 arg_end_p1 - arg_start, 3080 &ext_str_hash[0], 3081 (symint_t *) 0); 3082 3083 if (ext_hash_ptr != (shash_t *) 0 3084 && ext_hash_ptr->esym_ptr != (EXTR *) 0) 3085 eptr = ext_hash_ptr->esym_ptr; 3086 3087 orig_hash_ptr = hash_string (arg_start, 3088 arg_end_p1 - arg_start, 3089 &orig_str_hash[0], 3090 (symint_t *) 0); 3091 3092 if ((orig_hash_ptr == (shash_t *) 0 3093 || orig_hash_ptr->sym_ptr == (SYMR *) 0) 3094 && eptr == (EXTR *) 0) 3095 { 3096 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n", 3097 (int) (arg_end_p1 - arg_start), 3098 arg_start); 3099 value = 0; 3100 } 3101 else 3102 { 3103 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0 3104 && orig_hash_ptr->sym_ptr != (SYMR *) 0) 3105 ? orig_hash_ptr->sym_ptr 3106 : &eptr->asym; 3107 3108 symbol_type = (st_t) ptr->st; 3109 storage_class = (sc_t) ptr->sc; 3110 value = ptr->value; 3111 } 3112 } 3113 break; 3114 } 3115 else 3116 { 3117 error_line = __LINE__; 3118 saber_stop (); 3119 goto bomb_out; 3120 } 3121 } 3122 3123 /* Set up to find next directive. */ 3124 dir_start = arg_end_p1 + 1; 3125 } 3126 3127 3128 if (storage_class == sc_Bits) 3129 { 3130 t.bitfield = 1; 3131 t.extra_sizes = 1; 3132 } 3133 else 3134 t.extra_sizes = 0; 3135 3136 if (t.num_dims > 0) 3137 { 3138 int num_real_sizes = t.num_sizes - t.extra_sizes; 3139 int diff = t.num_dims - num_real_sizes; 3140 int i = t.num_dims - 1; 3141 int j; 3142 3143 if (num_real_sizes != 1 || diff < 0) 3144 { 3145 error_line = __LINE__; 3146 saber_stop (); 3147 goto bomb_out; 3148 } 3149 3150 /* If this is an array, make sure the same number of dimensions 3151 and sizes were passed, creating extra sizes for multiply 3152 dimensioned arrays if not passed. */ 3153 3154 if (diff) 3155 { 3156 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--) 3157 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0; 3158 3159 t.num_sizes = i + 1; 3160 for ( i--; i >= 0; i-- ) 3161 { 3162 if (t.dimensions[ i+1 ]) 3163 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ]; 3164 else 3165 t.sizes[ i ] = t.sizes[ i+1 ]; 3166 } 3167 } 3168 } 3169 3170 /* Except for enumeration members & begin/ending of scopes, put the 3171 type word in the aux. symbol table. */ 3172 3173 if (symbol_type == st_Block || symbol_type == st_End) 3174 indx = 0; 3175 3176 else if (inside_enumeration) 3177 indx = cur_file_ptr->void_type; 3178 3179 else 3180 { 3181 if (t.basic_type == bt_Struct 3182 || t.basic_type == bt_Union 3183 || t.basic_type == bt_Enum) 3184 { 3185 if (tag_start == (char *) 0) 3186 { 3187 error ("no tag specified for %.*s", 3188 (int) (name_end_p1 - name_start), 3189 name_start); 3190 return; 3191 } 3192 3193 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil, 3194 t.basic_type); 3195 } 3196 3197 if (is_function) 3198 { 3199 last_func_type_info = t; 3200 last_func_eptr = eptr; 3201 return; 3202 } 3203 3204 indx = add_aux_sym_tir (&t, 3205 hash_yes, 3206 &cur_file_ptr->thash_head[0]); 3207 } 3208 3209 3210 /* If this is an external or static symbol, update the appropriate 3211 external symbol. */ 3212 3213 if (eptr != (EXTR *) 0 3214 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0)) 3215 { 3216 eptr->ifd = cur_file_ptr->file_index; 3217 eptr->asym.index = indx; 3218 } 3219 3220 3221 /* Do any last minute adjustments that are necessary. */ 3222 switch (symbol_type) 3223 { 3224 default: 3225 break; 3226 3227 3228 /* For the beginning of structs, unions, and enumerations, the 3229 size info needs to be passed in the value field. */ 3230 3231 case st_Block: 3232 if (t.num_sizes - t.num_dims - t.extra_sizes != 1) 3233 { 3234 error_line = __LINE__; 3235 saber_stop (); 3236 goto bomb_out; 3237 } 3238 3239 else 3240 value = t.sizes[0]; 3241 3242 inside_enumeration = (t.orig_type == T_ENUM); 3243 break; 3244 3245 3246 /* For the end of structs, unions, and enumerations, omit the 3247 name which is always ".eos". This needs to be done last, so 3248 that any error reporting above gives the correct name. */ 3249 3250 case st_End: 3251 name_start = name_end_p1 = 0; 3252 value = inside_enumeration = 0; 3253 break; 3254 3255 3256 /* Members of structures and unions that aren't bitfields, need 3257 to adjust the value from a byte offset to a bit offset. 3258 Members of enumerations do not have the value adjusted, and 3259 can be distinguished by indx == indexNil. For enumerations, 3260 update the maximum enumeration value. */ 3261 3262 case st_Member: 3263 if (!t.bitfield && !inside_enumeration) 3264 value *= 8; 3265 3266 break; 3267 } 3268 3269 3270 /* Add the symbol, except for global symbols outside of functions, 3271 for which the external symbol table is fine enough. */ 3272 3273 if (eptr == (EXTR *) 0 3274 || eptr->asym.st == (int) st_Nil 3275 || cur_proc_ptr != (PDR *) 0) 3276 { 3277 symint_t isym = add_local_symbol (name_start, name_end_p1, 3278 symbol_type, storage_class, 3279 value, 3280 indx); 3281 3282 /* Deal with struct, union, and enum tags. */ 3283 if (symbol_type == st_Block) 3284 { 3285 /* Create or update the tag information. */ 3286 tag_t *tag_ptr = get_tag (name_start, 3287 name_end_p1, 3288 isym, 3289 t.basic_type); 3290 3291 /* If there are any forward references, fill in the appropriate 3292 file and symbol indexes. */ 3293 3294 symint_t file_index = cur_file_ptr->file_index; 3295 forward_t *f_next = tag_ptr->forward_ref; 3296 forward_t *f_cur; 3297 3298 while (f_next != (forward_t *) 0) 3299 { 3300 f_cur = f_next; 3301 f_next = f_next->next; 3302 3303 f_cur->ifd_ptr->isym = file_index; 3304 f_cur->index_ptr->rndx.index = isym; 3305 3306 free_forward (f_cur); 3307 } 3308 3309 tag_ptr->forward_ref = (forward_t *) 0; 3310 } 3311 } 3312 3313 /* Normal return */ 3314 return; 3315 3316 /* Error return, issue message. */ 3317bomb_out: 3318 if (error_line) 3319 error ("compiler error, badly formed #.def (internal line # = %d)", error_line); 3320 else 3321 error ("compiler error, badly formed #.def"); 3322 3323 return; 3324} 3325 3326 3327/* Parse .end directives. */ 3328 3329STATIC void 3330parse_end (const char *start) 3331{ 3332 const char *start_func, *end_func_p1; 3333 int ch; 3334 symint_t value; 3335 FDR *orig_fdr; 3336 3337 if (cur_file_ptr == (efdr_t *) 0) 3338 { 3339 error (".end directive without a preceding .file directive"); 3340 return; 3341 } 3342 3343 if (cur_proc_ptr == (PDR *) 0) 3344 { 3345 error (".end directive without a preceding .ent directive"); 3346 return; 3347 } 3348 3349 /* Get the function name, skipping whitespace. */ 3350 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3351 ; 3352 3353 ch = *start_func; 3354 if (!IS_ASM_IDENT (ch)) 3355 { 3356 error (".end directive has no name"); 3357 return; 3358 } 3359 3360 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3361 ; 3362 3363 3364 /* Get the value field for creating the end from the original object 3365 file (which we find by locating the procedure start, and using the 3366 pointer to the end+1 block and backing up. The index points to a 3367 two word aux. symbol, whose first word is the index of the end 3368 symbol, and the second word is the type of the function return 3369 value. */ 3370 3371 orig_fdr = cur_file_ptr->orig_fdr; 3372 value = 0; 3373 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0) 3374 value = cur_oproc_end->value; 3375 3376 else 3377 error ("cannot find .end block for %.*s", 3378 (int) (end_func_p1 - start_func), start_func); 3379 3380 (void) add_local_symbol (start_func, end_func_p1, 3381 st_End, sc_Text, 3382 value, 3383 (symint_t) 0); 3384 3385 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0; 3386} 3387 3388 3389/* Parse .ent directives. */ 3390 3391STATIC void 3392parse_ent (const char *start) 3393{ 3394 const char *start_func, *end_func_p1; 3395 int ch; 3396 3397 if (cur_file_ptr == (efdr_t *) 0) 3398 { 3399 error (".ent directive without a preceding .file directive"); 3400 return; 3401 } 3402 3403 if (cur_proc_ptr != (PDR *) 0) 3404 { 3405 error ("second .ent directive found before .end directive"); 3406 return; 3407 } 3408 3409 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3410 ; 3411 3412 ch = *start_func; 3413 if (!IS_ASM_IDENT (ch)) 3414 { 3415 error (".ent directive has no name"); 3416 return; 3417 } 3418 3419 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3420 ; 3421 3422 (void) add_procedure (start_func, end_func_p1); 3423} 3424 3425 3426/* Parse .file directives. */ 3427 3428STATIC void 3429parse_file (const char *start) 3430{ 3431 char *p; 3432 char *start_name, *end_name_p1; 3433 3434 (void) strtol (start, &p, 0); 3435 if (start == p 3436 || (start_name = strchr (p, '"')) == (char *) 0 3437 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0) 3438 { 3439 error ("invalid .file directive"); 3440 return; 3441 } 3442 3443 if (cur_proc_ptr != (PDR *) 0) 3444 { 3445 error ("no way to handle .file within .ent/.end section"); 3446 return; 3447 } 3448 3449 add_file (start_name, end_name_p1); 3450} 3451 3452 3453/* Make sure the @stabs symbol is emitted. */ 3454 3455static void 3456mark_stabs (const char *start ATTRIBUTE_UNUSED) 3457{ 3458 if (!stabs_seen) 3459 { 3460 /* Add a dummy @stabs symbol. */ 3461 stabs_seen = 1; 3462 (void) add_local_symbol (stabs_symbol, 3463 stabs_symbol + sizeof (stabs_symbol), 3464 stNil, scInfo, -1, MIPS_MARK_STAB (0)); 3465 3466 } 3467} 3468 3469 3470/* Parse .stabs directives. 3471 3472 .stabs directives have five fields: 3473 "string" a string, encoding the type information. 3474 code a numeric code, defined in <stab.h> 3475 0 a zero 3476 0 a zero or line number 3477 value a numeric value or an address. 3478 3479 If the value is relocatable, we transform this into: 3480 iss points as an index into string space 3481 value value from lookup of the name 3482 st st from lookup of the name 3483 sc sc from lookup of the name 3484 index code|CODE_MASK 3485 3486 If the value is not relocatable, we transform this into: 3487 iss points as an index into string space 3488 value value 3489 st st_Nil 3490 sc sc_Nil 3491 index code|CODE_MASK 3492 3493 .stabn directives have four fields (string is null): 3494 code a numeric code, defined in <stab.h> 3495 0 a zero 3496 0 a zero or a line number 3497 value a numeric value or an address. */ 3498 3499STATIC void 3500parse_stabs_common (const char *string_start, /* start of string or NULL */ 3501 const char *string_end, /* end+1 of string or NULL */ 3502 const char *rest) /* rest of the directive. */ 3503{ 3504 efdr_t *save_file_ptr = cur_file_ptr; 3505 symint_t code; 3506 symint_t value; 3507 char *p; 3508 st_t st; 3509 sc_t sc; 3510 int ch; 3511 3512 if (stabs_seen == 0) 3513 mark_stabs (""); 3514 3515 /* Read code from stabs. */ 3516 if (!ISDIGIT (*rest)) 3517 { 3518 error ("invalid .stabs/.stabn directive, code is non-numeric"); 3519 return; 3520 } 3521 3522 code = strtol (rest, &p, 0); 3523 3524 /* Line number stabs are handled differently, since they have two values, 3525 the line number and the address of the label. We use the index field 3526 (aka code) to hold the line number, and the value field to hold the 3527 address. The symbol type is st_Label, which should be different from 3528 the other stabs, so that gdb can recognize it. */ 3529 3530 if (code == (int) N_SLINE) 3531 { 3532 SYMR *sym_ptr, dummy_symr; 3533 shash_t *shash_ptr; 3534 3535 /* Skip ,0, */ 3536 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3])) 3537 { 3538 error ("invalid line number .stabs/.stabn directive"); 3539 return; 3540 } 3541 3542 code = strtol (p+3, &p, 0); 3543 ch = *++p; 3544 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch)) 3545 { 3546 error ("invalid line number .stabs/.stabn directive"); 3547 return; 3548 } 3549 3550 dummy_symr.index = code; 3551 if (dummy_symr.index != code) 3552 { 3553 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)", 3554 code); 3555 3556 return; 3557 } 3558 3559 shash_ptr = hash_string (p, 3560 strlen (p) - 1, 3561 &orig_str_hash[0], 3562 (symint_t *) 0); 3563 3564 if (shash_ptr == (shash_t *) 0 3565 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3566 { 3567 error ("invalid .stabs/.stabn directive, value not found"); 3568 return; 3569 } 3570 3571 if ((st_t) sym_ptr->st != st_Label) 3572 { 3573 error ("invalid line number .stabs/.stabn directive"); 3574 return; 3575 } 3576 3577 st = st_Label; 3578 sc = (sc_t) sym_ptr->sc; 3579 value = sym_ptr->value; 3580 } 3581 else 3582 { 3583 /* Skip ,<num>,<num>, */ 3584 if (*p++ != ',') 3585 goto failure; 3586 for (; ISDIGIT (*p); p++) 3587 ; 3588 if (*p++ != ',') 3589 goto failure; 3590 for (; ISDIGIT (*p); p++) 3591 ; 3592 if (*p++ != ',') 3593 goto failure; 3594 ch = *p; 3595 if (!IS_ASM_IDENT (ch) && ch != '-') 3596 { 3597 failure: 3598 error ("invalid .stabs/.stabn directive, bad character"); 3599 return; 3600 } 3601 3602 if (ISDIGIT (ch) || ch == '-') 3603 { 3604 st = st_Nil; 3605 sc = sc_Nil; 3606 value = strtol (p, &p, 0); 3607 if (*p != '\n') 3608 { 3609 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3610 return; 3611 } 3612 } 3613 else if (!IS_ASM_IDENT (ch)) 3614 { 3615 error ("invalid .stabs/.stabn directive, bad character"); 3616 return; 3617 } 3618 else 3619 { 3620 SYMR *sym_ptr; 3621 shash_t *shash_ptr; 3622 const char *start, *end_p1; 3623 3624 start = p; 3625 if ((end_p1 = strchr (start, '+')) == (char *) 0) 3626 { 3627 if ((end_p1 = strchr (start, '-')) == (char *) 0) 3628 end_p1 = start + strlen (start) - 1; 3629 } 3630 3631 shash_ptr = hash_string (start, 3632 end_p1 - start, 3633 &orig_str_hash[0], 3634 (symint_t *) 0); 3635 3636 if (shash_ptr == (shash_t *) 0 3637 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3638 { 3639 shash_ptr = hash_string (start, 3640 end_p1 - start, 3641 &ext_str_hash[0], 3642 (symint_t *) 0); 3643 3644 if (shash_ptr == (shash_t *) 0 3645 || shash_ptr->esym_ptr == (EXTR *) 0) 3646 { 3647 error ("invalid .stabs/.stabn directive, value not found"); 3648 return; 3649 } 3650 else 3651 sym_ptr = &(shash_ptr->esym_ptr->asym); 3652 } 3653 3654 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */ 3655 if (code == (int) N_LBRAC || code == (int) N_RBRAC) 3656 { 3657 sc = scNil; 3658 st = stNil; 3659 } 3660 else 3661 { 3662 sc = (sc_t) sym_ptr->sc; 3663 st = (st_t) sym_ptr->st; 3664 } 3665 value = sym_ptr->value; 3666 3667 ch = *end_p1++; 3668 if (ch != '\n') 3669 { 3670 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-')) 3671 || ((ch != '+') && (ch != '-'))) 3672 { 3673 error ("invalid .stabs/.stabn directive, badly formed value"); 3674 return; 3675 } 3676 if (ch == '+') 3677 value += strtol (end_p1, &p, 0); 3678 else if (ch == '-') 3679 value -= strtol (end_p1, &p, 0); 3680 3681 if (*p != '\n') 3682 { 3683 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3684 return; 3685 } 3686 } 3687 } 3688 code = MIPS_MARK_STAB (code); 3689 } 3690 3691 (void) add_local_symbol (string_start, string_end, st, sc, value, code); 3692 /* Restore normal file type. */ 3693 cur_file_ptr = save_file_ptr; 3694} 3695 3696 3697STATIC void 3698parse_stabs (const char *start) 3699{ 3700 const char *end = strchr (start+1, '"'); 3701 3702 if (*start != '"' || end == (const char *) 0 || end[1] != ',') 3703 { 3704 error ("invalid .stabs directive, no string"); 3705 return; 3706 } 3707 3708 parse_stabs_common (start+1, end, end+2); 3709} 3710 3711 3712STATIC void 3713parse_stabn (const char *start) 3714{ 3715 parse_stabs_common ((const char *) 0, (const char *) 0, start); 3716} 3717 3718 3719/* Parse the input file, and write the lines to the output file 3720 if needed. */ 3721 3722STATIC void 3723parse_input (void) 3724{ 3725 char *p; 3726 Size_t i; 3727 thead_t *ptag_head; 3728 tag_t *ptag; 3729 tag_t *ptag_next; 3730 3731 if (debug) 3732 fprintf (stderr, "\tinput\n"); 3733 3734 /* Add a dummy scope block around the entire compilation unit for 3735 structures defined outside of blocks. */ 3736 ptag_head = allocate_thead (); 3737 ptag_head->first_tag = 0; 3738 ptag_head->prev = cur_tag_head; 3739 cur_tag_head = ptag_head; 3740 3741 while ((p = read_line ()) != (char *) 0) 3742 { 3743 /* Skip leading blanks. */ 3744 while (ISSPACE ((unsigned char)*p)) 3745 p++; 3746 3747 /* See if it's a directive we handle. If so, dispatch handler. */ 3748 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++) 3749 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0 3750 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len]))) 3751 { 3752 p += pseudo_ops[i].len; /* skip to first argument */ 3753 while (ISSPACE ((unsigned char)*p)) 3754 p++; 3755 3756 (*pseudo_ops[i].func)( p ); 3757 break; 3758 } 3759 } 3760 3761 /* Process any tags at global level. */ 3762 ptag_head = cur_tag_head; 3763 cur_tag_head = ptag_head->prev; 3764 3765 for (ptag = ptag_head->first_tag; 3766 ptag != (tag_t *) 0; 3767 ptag = ptag_next) 3768 { 3769 if (ptag->forward_ref != (forward_t *) 0) 3770 add_unknown_tag (ptag); 3771 3772 ptag_next = ptag->same_block; 3773 ptag->hash_ptr->tag_ptr = ptag->same_name; 3774 free_tag (ptag); 3775 } 3776 3777 free_thead (ptag_head); 3778 3779} 3780 3781 3782/* Update the global headers with the final offsets in preparation 3783 to write out the .T file. */ 3784 3785STATIC void 3786update_headers (void) 3787{ 3788 symint_t i; 3789 efdr_t *file_ptr; 3790 3791 /* Set up the symbolic header. */ 3792 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 3793 symbolic_header.magic = orig_sym_hdr.magic; 3794 symbolic_header.vstamp = orig_sym_hdr.vstamp; 3795 3796 /* Set up global counts. */ 3797 symbolic_header.issExtMax = ext_strings.num_allocated; 3798 symbolic_header.idnMax = dense_num.num_allocated; 3799 symbolic_header.ifdMax = file_desc.num_allocated; 3800 symbolic_header.iextMax = ext_symbols.num_allocated; 3801 symbolic_header.ilineMax = orig_sym_hdr.ilineMax; 3802 symbolic_header.ioptMax = orig_sym_hdr.ioptMax; 3803 symbolic_header.cbLine = orig_sym_hdr.cbLine; 3804 symbolic_header.crfd = orig_sym_hdr.crfd; 3805 3806 3807 /* Loop through each file, figuring out how many local syms, 3808 line numbers, etc. there are. Also, put out end symbol 3809 for the filename. */ 3810 3811 for (file_ptr = first_file; 3812 file_ptr != (efdr_t *) 0; 3813 file_ptr = file_ptr->next_file) 3814 { 3815 SYMR *sym_start; 3816 SYMR *sym; 3817 SYMR *sym_end_p1; 3818 FDR *fd_ptr = file_ptr->orig_fdr; 3819 3820 cur_file_ptr = file_ptr; 3821 3822 /* Copy st_Static symbols from the original local symbol table if 3823 they did not get added to the new local symbol table. 3824 This happens with stabs-in-ecoff or if the source file is 3825 compiled without debugging. */ 3826 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 3827 sym_end_p1 = sym_start + fd_ptr->csym; 3828 for (sym = sym_start; sym < sym_end_p1; sym++) 3829 { 3830 if ((st_t) sym->st == st_Static) 3831 { 3832 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 3833 Size_t len = strlen (str); 3834 shash_t *hash_ptr; 3835 3836 /* Ignore internal labels. */ 3837 if (str[0] == '$' && str[1] == 'L') 3838 continue; 3839 hash_ptr = hash_string (str, 3840 (Ptrdiff_t) len, 3841 &file_ptr->shash_head[0], 3842 (symint_t *) 0); 3843 if (hash_ptr == (shash_t *) 0) 3844 { 3845 (void) add_local_symbol (str, str + len, 3846 (st_t) sym->st, (sc_t) sym->sc, 3847 (symint_t) sym->value, 3848 (symint_t) indexNil); 3849 } 3850 } 3851 } 3852 (void) add_local_symbol ((const char *) 0, (const char *) 0, 3853 st_End, sc_Text, 3854 (symint_t) 0, 3855 (symint_t) 0); 3856 3857 file_ptr->fdr.cpd = file_ptr->procs.num_allocated; 3858 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax; 3859 symbolic_header.ipdMax += file_ptr->fdr.cpd; 3860 3861 file_ptr->fdr.csym = file_ptr->symbols.num_allocated; 3862 file_ptr->fdr.isymBase = symbolic_header.isymMax; 3863 symbolic_header.isymMax += file_ptr->fdr.csym; 3864 3865 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated; 3866 file_ptr->fdr.iauxBase = symbolic_header.iauxMax; 3867 symbolic_header.iauxMax += file_ptr->fdr.caux; 3868 3869 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated; 3870 file_ptr->fdr.issBase = symbolic_header.issMax; 3871 symbolic_header.issMax += file_ptr->fdr.cbSs; 3872 } 3873 3874#ifndef ALIGN_SYMTABLE_OFFSET 3875#define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET) 3876#endif 3877 3878 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3879 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */ 3880 if (i > 0) 3881 { 3882 symbolic_header.cbLineOffset = file_offset; 3883 file_offset += i; 3884 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3885 } 3886 3887 i = symbolic_header.ioptMax; /* optimization symbols */ 3888 if (((long) i) > 0) 3889 { 3890 symbolic_header.cbOptOffset = file_offset; 3891 file_offset += i * sizeof (OPTR); 3892 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3893 } 3894 3895 i = symbolic_header.idnMax; /* dense numbers */ 3896 if (i > 0) 3897 { 3898 symbolic_header.cbDnOffset = file_offset; 3899 file_offset += i * sizeof (DNR); 3900 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3901 } 3902 3903 i = symbolic_header.ipdMax; /* procedure tables */ 3904 if (i > 0) 3905 { 3906 symbolic_header.cbPdOffset = file_offset; 3907 file_offset += i * sizeof (PDR); 3908 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3909 } 3910 3911 i = symbolic_header.isymMax; /* local symbols */ 3912 if (i > 0) 3913 { 3914 symbolic_header.cbSymOffset = file_offset; 3915 file_offset += i * sizeof (SYMR); 3916 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3917 } 3918 3919 i = symbolic_header.iauxMax; /* aux syms. */ 3920 if (i > 0) 3921 { 3922 symbolic_header.cbAuxOffset = file_offset; 3923 file_offset += i * sizeof (TIR); 3924 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3925 } 3926 3927 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */ 3928 if (i > 0) 3929 { 3930 symbolic_header.cbSsOffset = file_offset; 3931 file_offset += i; 3932 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3933 } 3934 3935 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */ 3936 if (i > 0) 3937 { 3938 symbolic_header.cbSsExtOffset = file_offset; 3939 file_offset += i; 3940 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3941 } 3942 3943 i = symbolic_header.ifdMax; /* file tables */ 3944 if (i > 0) 3945 { 3946 symbolic_header.cbFdOffset = file_offset; 3947 file_offset += i * sizeof (FDR); 3948 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3949 } 3950 3951 i = symbolic_header.crfd; /* relative file descriptors */ 3952 if (i > 0) 3953 { 3954 symbolic_header.cbRfdOffset = file_offset; 3955 file_offset += i * sizeof (symint_t); 3956 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3957 } 3958 3959 i = symbolic_header.iextMax; /* external symbols */ 3960 if (i > 0) 3961 { 3962 symbolic_header.cbExtOffset = file_offset; 3963 file_offset += i * sizeof (EXTR); 3964 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3965 } 3966} 3967 3968 3969/* Write out a varray at a given location. */ 3970 3971STATIC void 3972write_varray (varray_t *vp, /* virtual array */ 3973 off_t offset, /* offset to write varray to */ 3974 const char *str) /* string to print out when tracing */ 3975{ 3976 int num_write, sys_write; 3977 vlinks_t *ptr; 3978 3979 if (vp->num_allocated == 0) 3980 return; 3981 3982 if (debug) 3983 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n", 3984 (void *) vp, (unsigned long) offset, 3985 vp->num_allocated * vp->object_size, str); 3986 3987 if (file_offset != (unsigned long) offset 3988 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 3989 pfatal_with_name (object_name); 3990 3991 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next) 3992 { 3993 num_write = (ptr->next == (vlinks_t *) 0) 3994 ? vp->objects_last_page * vp->object_size 3995 : vp->objects_per_page * vp->object_size; 3996 3997 sys_write = fwrite (ptr->datum, 1, num_write, object_stream); 3998 if (sys_write <= 0) 3999 pfatal_with_name (object_name); 4000 4001 else if (sys_write != num_write) 4002 fatal ("wrote %d bytes to %s, system returned %d", 4003 num_write, 4004 object_name, 4005 sys_write); 4006 4007 file_offset += num_write; 4008 } 4009} 4010 4011 4012/* Write out the symbol table in the object file. */ 4013 4014STATIC void 4015write_object (void) 4016{ 4017 int sys_write; 4018 efdr_t *file_ptr; 4019 off_t offset; 4020 4021 if (debug) 4022 fprintf (stderr, "\n\twrite\tvp = %p, offset = %7u, size = %7lu, %s\n", 4023 (void *) &symbolic_header, 0, 4024 (unsigned long) sizeof (symbolic_header), "symbolic header"); 4025 4026 sys_write = fwrite (&symbolic_header, 4027 1, 4028 sizeof (symbolic_header), 4029 object_stream); 4030 4031 if (sys_write < 0) 4032 pfatal_with_name (object_name); 4033 4034 else if (sys_write != sizeof (symbolic_header)) 4035 fatal ("wrote %d bytes to %s, system returned %d", 4036 (int) sizeof (symbolic_header), 4037 object_name, 4038 sys_write); 4039 4040 4041 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 4042 4043 if (symbolic_header.cbLine > 0) /* line numbers */ 4044 { 4045 long sys_write; 4046 4047 if (file_offset != (unsigned long) symbolic_header.cbLineOffset 4048 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0) 4049 pfatal_with_name (object_name); 4050 4051 if (debug) 4052 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", 4053 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset, 4054 (long) symbolic_header.cbLine, "Line numbers"); 4055 4056 sys_write = fwrite (orig_linenum, 4057 1, 4058 symbolic_header.cbLine, 4059 object_stream); 4060 4061 if (sys_write <= 0) 4062 pfatal_with_name (object_name); 4063 4064 else if (sys_write != symbolic_header.cbLine) 4065 fatal ("wrote %ld bytes to %s, system returned %ld", 4066 (long) symbolic_header.cbLine, 4067 object_name, 4068 sys_write); 4069 4070 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine; 4071 } 4072 4073 if (symbolic_header.ioptMax > 0) /* optimization symbols */ 4074 { 4075 long sys_write; 4076 long num_write = symbolic_header.ioptMax * sizeof (OPTR); 4077 4078 if (file_offset != (unsigned long) symbolic_header.cbOptOffset 4079 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0) 4080 pfatal_with_name (object_name); 4081 4082 if (debug) 4083 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", 4084 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset, 4085 num_write, "Optimizer symbols"); 4086 4087 sys_write = fwrite (orig_opt_syms, 4088 1, 4089 num_write, 4090 object_stream); 4091 4092 if (sys_write <= 0) 4093 pfatal_with_name (object_name); 4094 4095 else if (sys_write != num_write) 4096 fatal ("wrote %ld bytes to %s, system returned %ld", 4097 num_write, 4098 object_name, 4099 sys_write); 4100 4101 file_offset = symbolic_header.cbOptOffset + num_write; 4102 } 4103 4104 if (symbolic_header.idnMax > 0) /* dense numbers */ 4105 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers"); 4106 4107 if (symbolic_header.ipdMax > 0) /* procedure tables */ 4108 { 4109 offset = symbolic_header.cbPdOffset; 4110 for (file_ptr = first_file; 4111 file_ptr != (efdr_t *) 0; 4112 file_ptr = file_ptr->next_file) 4113 { 4114 write_varray (&file_ptr->procs, offset, "Procedure tables"); 4115 offset = file_offset; 4116 } 4117 } 4118 4119 if (symbolic_header.isymMax > 0) /* local symbols */ 4120 { 4121 offset = symbolic_header.cbSymOffset; 4122 for (file_ptr = first_file; 4123 file_ptr != (efdr_t *) 0; 4124 file_ptr = file_ptr->next_file) 4125 { 4126 write_varray (&file_ptr->symbols, offset, "Local symbols"); 4127 offset = file_offset; 4128 } 4129 } 4130 4131 if (symbolic_header.iauxMax > 0) /* aux symbols */ 4132 { 4133 offset = symbolic_header.cbAuxOffset; 4134 for (file_ptr = first_file; 4135 file_ptr != (efdr_t *) 0; 4136 file_ptr = file_ptr->next_file) 4137 { 4138 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols"); 4139 offset = file_offset; 4140 } 4141 } 4142 4143 if (symbolic_header.issMax > 0) /* local strings */ 4144 { 4145 offset = symbolic_header.cbSsOffset; 4146 for (file_ptr = first_file; 4147 file_ptr != (efdr_t *) 0; 4148 file_ptr = file_ptr->next_file) 4149 { 4150 write_varray (&file_ptr->strings, offset, "Local strings"); 4151 offset = file_offset; 4152 } 4153 } 4154 4155 if (symbolic_header.issExtMax > 0) /* external strings */ 4156 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings"); 4157 4158 if (symbolic_header.ifdMax > 0) /* file tables */ 4159 { 4160 offset = symbolic_header.cbFdOffset; 4161 if (file_offset != (unsigned long) offset 4162 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 4163 pfatal_with_name (object_name); 4164 4165 file_offset = offset; 4166 for (file_ptr = first_file; 4167 file_ptr != (efdr_t *) 0; 4168 file_ptr = file_ptr->next_file) 4169 { 4170 if (debug) 4171 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", 4172 (void *) &file_ptr->fdr, file_offset, 4173 (unsigned long) sizeof (FDR), "File header"); 4174 4175 sys_write = fwrite (&file_ptr->fdr, 4176 1, 4177 sizeof (FDR), 4178 object_stream); 4179 4180 if (sys_write < 0) 4181 pfatal_with_name (object_name); 4182 4183 else if (sys_write != sizeof (FDR)) 4184 fatal ("wrote %d bytes to %s, system returned %d", 4185 (int) sizeof (FDR), 4186 object_name, 4187 sys_write); 4188 4189 file_offset = offset += sizeof (FDR); 4190 } 4191 } 4192 4193 if (symbolic_header.crfd > 0) /* relative file descriptors */ 4194 { 4195 long sys_write; 4196 symint_t num_write = symbolic_header.crfd * sizeof (symint_t); 4197 4198 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset 4199 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0) 4200 pfatal_with_name (object_name); 4201 4202 if (debug) 4203 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n", 4204 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset, 4205 num_write, "Relative file descriptors"); 4206 4207 sys_write = fwrite (orig_rfds, 4208 1, 4209 num_write, 4210 object_stream); 4211 4212 if (sys_write <= 0) 4213 pfatal_with_name (object_name); 4214 4215 else if (sys_write != (long) num_write) 4216 fatal ("wrote %lu bytes to %s, system returned %ld", 4217 num_write, 4218 object_name, 4219 sys_write); 4220 4221 file_offset = symbolic_header.cbRfdOffset + num_write; 4222 } 4223 4224 if (symbolic_header.issExtMax > 0) /* external symbols */ 4225 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols"); 4226 4227 if (fclose (object_stream) != 0) 4228 pfatal_with_name (object_name); 4229} 4230 4231 4232/* Read some bytes at a specified location, and return a pointer. */ 4233 4234STATIC page_t * 4235read_seek (Size_t size, /* # bytes to read */ 4236 off_t offset, /* offset to read at */ 4237 const char *str) /* name for tracing */ 4238{ 4239 page_t *ptr; 4240 long sys_read = 0; 4241 4242 if (size == 0) /* nothing to read */ 4243 return (page_t *) 0; 4244 4245 if (debug) 4246 fprintf (stderr, 4247 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n", 4248 (unsigned long) size, (unsigned long) offset, file_offset, str); 4249 4250#ifndef MALLOC_CHECK 4251 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE); 4252#else 4253 ptr = xcalloc (1, size); 4254#endif 4255 4256 /* If we need to seek, and the distance is nearby, just do some reads, 4257 to speed things up. */ 4258 if (file_offset != (unsigned long) offset) 4259 { 4260 symint_t difference = offset - file_offset; 4261 4262 if (difference < 8) 4263 { 4264 char small_buffer[8]; 4265 4266 sys_read = fread (small_buffer, 1, difference, obj_in_stream); 4267 if (sys_read <= 0) 4268 pfatal_with_name (obj_in_name); 4269 4270 if ((symint_t) sys_read != difference) 4271 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4272 (unsigned long) size, 4273 obj_in_name, 4274 sys_read); 4275 } 4276 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0) 4277 pfatal_with_name (obj_in_name); 4278 } 4279 4280 sys_read = fread (ptr, 1, size, obj_in_stream); 4281 if (sys_read <= 0) 4282 pfatal_with_name (obj_in_name); 4283 4284 if (sys_read != (long) size) 4285 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4286 (unsigned long) size, 4287 obj_in_name, 4288 sys_read); 4289 4290 file_offset = offset + size; 4291 4292 if (file_offset > max_file_offset) 4293 max_file_offset = file_offset; 4294 4295 return ptr; 4296} 4297 4298 4299/* Read the existing object file (and copy to the output object file 4300 if it is different from the input object file), and remove the old 4301 symbol table. */ 4302 4303STATIC void 4304copy_object (void) 4305{ 4306 char buffer[ PAGE_SIZE ]; 4307 int sys_read; 4308 int remaining; 4309 int num_write; 4310 int sys_write; 4311 int fd, es; 4312 int delete_ifd = 0; 4313 int *remap_file_number; 4314 struct stat stat_buf; 4315 4316 if (debug) 4317 fprintf (stderr, "\tcopy\n"); 4318 4319 if (fstat (fileno (obj_in_stream), &stat_buf) != 0 4320 || fseek (obj_in_stream, 0L, SEEK_SET) != 0) 4321 pfatal_with_name (obj_in_name); 4322 4323 sys_read = fread (&orig_file_header, 4324 1, 4325 sizeof (struct filehdr), 4326 obj_in_stream); 4327 4328 if (sys_read < 0) 4329 pfatal_with_name (obj_in_name); 4330 4331 else if (sys_read == 0 && feof (obj_in_stream)) 4332 return; /* create a .T file sans file header */ 4333 4334 else if (sys_read < (int) sizeof (struct filehdr)) 4335 fatal ("wanted to read %d bytes from %s, system returned %d", 4336 (int) sizeof (struct filehdr), 4337 obj_in_name, 4338 sys_read); 4339 4340 4341 if (orig_file_header.f_nsyms != sizeof (HDRR)) 4342 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)", 4343 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR)); 4344 4345 4346 /* Read in the current symbolic header. */ 4347 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0) 4348 pfatal_with_name (input_name); 4349 4350 sys_read = fread (&orig_sym_hdr, 4351 1, 4352 sizeof (orig_sym_hdr), 4353 obj_in_stream); 4354 4355 if (sys_read < 0) 4356 pfatal_with_name (object_name); 4357 4358 else if (sys_read < (int) sizeof (struct filehdr)) 4359 fatal ("wanted to read %d bytes from %s, system returned %d", 4360 (int) sizeof (struct filehdr), 4361 obj_in_name, 4362 sys_read); 4363 4364 4365 /* Read in each of the sections if they exist in the object file. 4366 We read things in the order the mips assembler creates the 4367 sections, so in theory no extra seeks are done. 4368 4369 For simplicity sake, round each read up to a page boundary, 4370 we may want to revisit this later.... */ 4371 4372 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr); 4373 4374 if (orig_sym_hdr.cbLine > 0) /* line numbers */ 4375 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine, 4376 orig_sym_hdr.cbLineOffset, 4377 "Line numbers"); 4378 4379 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */ 4380 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR), 4381 orig_sym_hdr.cbPdOffset, 4382 "Procedure tables"); 4383 4384 if (orig_sym_hdr.isymMax > 0) /* local symbols */ 4385 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR), 4386 orig_sym_hdr.cbSymOffset, 4387 "Local symbols"); 4388 4389 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */ 4390 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU), 4391 orig_sym_hdr.cbAuxOffset, 4392 "Aux. symbols"); 4393 4394 if (orig_sym_hdr.issMax > 0) /* local strings */ 4395 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax, 4396 orig_sym_hdr.cbSsOffset, 4397 "Local strings"); 4398 4399 if (orig_sym_hdr.issExtMax > 0) /* external strings */ 4400 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax, 4401 orig_sym_hdr.cbSsExtOffset, 4402 "External strings"); 4403 4404 if (orig_sym_hdr.ifdMax > 0) /* file tables */ 4405 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR), 4406 orig_sym_hdr.cbFdOffset, 4407 "File tables"); 4408 4409 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */ 4410 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t), 4411 orig_sym_hdr.cbRfdOffset, 4412 "Relative file descriptors"); 4413 4414 if (orig_sym_hdr.issExtMax > 0) /* external symbols */ 4415 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR), 4416 orig_sym_hdr.cbExtOffset, 4417 "External symbols"); 4418 4419 if (orig_sym_hdr.idnMax > 0) /* dense numbers */ 4420 { 4421 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR), 4422 orig_sym_hdr.cbDnOffset, 4423 "Dense numbers"); 4424 4425 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax); 4426 } 4427 4428 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */ 4429 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR), 4430 orig_sym_hdr.cbOptOffset, 4431 "Optimizer symbols"); 4432 4433 4434 4435 /* The symbol table should be last. */ 4436 if (max_file_offset != (unsigned long) stat_buf.st_size) 4437 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld", 4438 max_file_offset, 4439 (long) stat_buf.st_size); 4440 4441 4442 /* If the first original file descriptor is a dummy which the assembler 4443 put out, but there are no symbols in it, skip it now. */ 4444 if (orig_sym_hdr.ifdMax > 1 4445 && orig_files->csym == 2 4446 && orig_files->caux == 0) 4447 { 4448 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss); 4449 char *suffix = strrchr (filename, '.'); 4450 4451 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0) 4452 delete_ifd = 1; 4453 } 4454 4455 4456 /* Create array to map original file numbers to the new file numbers 4457 (in case there are duplicate filenames, we collapse them into one 4458 file section, the MIPS assembler may or may not collapse them). */ 4459 4460 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax); 4461 4462 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4463 { 4464 FDR *fd_ptr = ORIG_FILES (fd); 4465 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4466 4467 /* file support itself. */ 4468 add_file (filename, filename + strlen (filename)); 4469 remap_file_number[fd] = cur_file_ptr->file_index; 4470 } 4471 4472 if (delete_ifd > 0) /* just in case */ 4473 remap_file_number[0] = remap_file_number[1]; 4474 4475 4476 /* Loop, adding each of the external symbols. These must be in 4477 order or otherwise we would have to change the relocation 4478 entries. We don't just call add_bytes, because we need to have 4479 the names put into the external hash table. We set the type to 4480 'void' for now, and parse_def will fill in the correct type if it 4481 is in the symbol table. We must add the external symbols before 4482 the locals, since the locals do lookups against the externals. */ 4483 4484 if (debug) 4485 fprintf (stderr, "\tehash\n"); 4486 4487 for (es = 0; es < orig_sym_hdr.iextMax; es++) 4488 { 4489 EXTR *eptr = orig_ext_syms + es; 4490 int ifd = eptr->ifd; 4491 4492 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax) 4493 ? remap_file_number[ ifd ] : ifd ); 4494 } 4495 4496 4497 /* For each of the files in the object file, copy the symbols, and such 4498 into the varrays for the new object file. */ 4499 4500 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4501 { 4502 FDR *fd_ptr = ORIG_FILES (fd); 4503 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4504 SYMR *sym_start; 4505 SYMR *sym; 4506 SYMR *sym_end_p1; 4507 PDR *proc_start; 4508 PDR *proc; 4509 PDR *proc_end_p1; 4510 4511 /* file support itself. */ 4512 add_file (filename, filename + strlen (filename)); 4513 cur_file_ptr->orig_fdr = fd_ptr; 4514 4515 /* Copy stuff that's just passed through (such as line #'s) */ 4516 cur_file_ptr->fdr.adr = fd_ptr->adr; 4517 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase; 4518 cur_file_ptr->fdr.cline = fd_ptr->cline; 4519 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase; 4520 cur_file_ptr->fdr.crfd = fd_ptr->crfd; 4521 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset; 4522 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine; 4523 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge; 4524 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin; 4525 cur_file_ptr->fdr.glevel = fd_ptr->glevel; 4526 4527 if (debug) 4528 fprintf (stderr, "\thash\tstart, filename %s\n", filename); 4529 4530 /* For each of the static and global symbols defined, add them 4531 to the hash table of original symbols, so we can look up 4532 their values. */ 4533 4534 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 4535 sym_end_p1 = sym_start + fd_ptr->csym; 4536 for (sym = sym_start; sym < sym_end_p1; sym++) 4537 { 4538 switch ((st_t) sym->st) 4539 { 4540 default: 4541 break; 4542 4543 case st_Global: 4544 case st_Static: 4545 case st_Label: 4546 case st_Proc: 4547 case st_StaticProc: 4548 { 4549 auto symint_t hash_index; 4550 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4551 Size_t len = strlen (str); 4552 shash_t *shash_ptr = hash_string (str, 4553 (Ptrdiff_t) len, 4554 &orig_str_hash[0], 4555 &hash_index); 4556 4557 if (shash_ptr != (shash_t *) 0) 4558 error ("internal error, %s is already in original symbol table", str); 4559 4560 else 4561 { 4562 shash_ptr = allocate_shash (); 4563 shash_ptr->next = orig_str_hash[hash_index]; 4564 orig_str_hash[hash_index] = shash_ptr; 4565 4566 shash_ptr->len = len; 4567 shash_ptr->indx = indexNil; 4568 shash_ptr->string = str; 4569 shash_ptr->sym_ptr = sym; 4570 } 4571 } 4572 break; 4573 4574 case st_End: 4575 if ((sc_t) sym->sc == sc_Text) 4576 { 4577 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4578 4579 if (*str != '\0') 4580 { 4581 Size_t len = strlen (str); 4582 shash_t *shash_ptr = hash_string (str, 4583 (Ptrdiff_t) len, 4584 &orig_str_hash[0], 4585 (symint_t *) 0); 4586 4587 if (shash_ptr != (shash_t *) 0) 4588 shash_ptr->end_ptr = sym; 4589 } 4590 } 4591 break; 4592 4593 } 4594 } 4595 4596 if (debug) 4597 { 4598 fprintf (stderr, "\thash\tdone, filename %s\n", filename); 4599 fprintf (stderr, "\tproc\tstart, filename %s\n", filename); 4600 } 4601 4602 /* Go through each of the procedures in this file, and add the 4603 procedure pointer to the hash entry for the given name. */ 4604 4605 proc_start = ORIG_PROCS (fd_ptr->ipdFirst); 4606 proc_end_p1 = proc_start + fd_ptr->cpd; 4607 for (proc = proc_start; proc < proc_end_p1; proc++) 4608 { 4609 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym); 4610 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss); 4611 Size_t len = strlen (str); 4612 shash_t *shash_ptr = hash_string (str, 4613 (Ptrdiff_t) len, 4614 &orig_str_hash[0], 4615 (symint_t *) 0); 4616 4617 if (shash_ptr == (shash_t *) 0) 4618 error ("internal error, function %s is not in original symbol table", str); 4619 4620 else 4621 shash_ptr->proc_ptr = proc; 4622 } 4623 4624 if (debug) 4625 fprintf (stderr, "\tproc\tdone, filename %s\n", filename); 4626 4627 } 4628 cur_file_ptr = first_file; 4629 4630 4631 /* Copy all of the object file up to the symbol table. Originally 4632 we were going to use ftruncate, but that doesn't seem to work 4633 on Ultrix 3.1.... */ 4634 4635 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0) 4636 pfatal_with_name (obj_in_name); 4637 4638 if (fseek (object_stream, (long) 0, SEEK_SET) != 0) 4639 pfatal_with_name (object_name); 4640 4641 for (remaining = orig_file_header.f_symptr; 4642 remaining > 0; 4643 remaining -= num_write) 4644 { 4645 num_write 4646 = (remaining <= (int) sizeof (buffer)) 4647 ? remaining : (int) sizeof (buffer); 4648 sys_read = fread (buffer, 1, num_write, obj_in_stream); 4649 if (sys_read <= 0) 4650 pfatal_with_name (obj_in_name); 4651 4652 else if (sys_read != num_write) 4653 fatal ("wanted to read %d bytes from %s, system returned %d", 4654 num_write, 4655 obj_in_name, 4656 sys_read); 4657 4658 sys_write = fwrite (buffer, 1, num_write, object_stream); 4659 if (sys_write <= 0) 4660 pfatal_with_name (object_name); 4661 4662 else if (sys_write != num_write) 4663 fatal ("wrote %d bytes to %s, system returned %d", 4664 num_write, 4665 object_name, 4666 sys_write); 4667 } 4668} 4669 4670 4671/* Ye olde main program. */ 4672 4673extern int main (int, char **); 4674 4675int 4676main (int argc, char **argv) 4677{ 4678 int iflag = 0; 4679 char *p = strrchr (argv[0], '/'); 4680 char *num_end; 4681 int option; 4682 int i; 4683 4684 progname = (p != 0) ? p+1 : argv[0]; 4685 4686 (void) signal (SIGSEGV, catch_signal); 4687 (void) signal (SIGBUS, catch_signal); 4688 (void) signal (SIGABRT, catch_signal); 4689 4690#if !defined(__SABER__) && !defined(lint) 4691 if (sizeof (efdr_t) > PAGE_USIZE) 4692 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d", 4693 (int) sizeof (efdr_t), 4694 (int) PAGE_USIZE); 4695 4696 if (sizeof (page_t) != PAGE_USIZE) 4697 fatal ("page_t has a sizeof %d bytes, when it should be %d", 4698 (int) sizeof (page_t), 4699 (int) PAGE_USIZE); 4700 4701#endif 4702 4703 alloc_counts[ alloc_type_none ].alloc_name = "none"; 4704 alloc_counts[ alloc_type_scope ].alloc_name = "scope"; 4705 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks"; 4706 alloc_counts[ alloc_type_shash ].alloc_name = "shash"; 4707 alloc_counts[ alloc_type_thash ].alloc_name = "thash"; 4708 alloc_counts[ alloc_type_tag ].alloc_name = "tag"; 4709 alloc_counts[ alloc_type_forward ].alloc_name = "forward"; 4710 alloc_counts[ alloc_type_thead ].alloc_name = "thead"; 4711 alloc_counts[ alloc_type_varray ].alloc_name = "varray"; 4712 4713 int_type_info = type_info_init; 4714 int_type_info.basic_type = bt_Int; 4715 4716 void_type_info = type_info_init; 4717 void_type_info.basic_type = bt_Void; 4718 4719 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1) 4720 switch (option) 4721 { 4722 default: 4723 had_errors++; 4724 break; 4725 4726 case 'd': 4727 debug = strtol (optarg, &num_end, 0); 4728 if ((unsigned) debug > 4 || num_end == optarg) 4729 had_errors++; 4730 4731 break; 4732 4733 case 'I': 4734 if (rename_output || obj_in_name != (char *) 0) 4735 had_errors++; 4736 else 4737 rename_output = 1; 4738 4739 /* Fall through to 'i' case. */ 4740 4741 case 'i': 4742 if (obj_in_name == (char *) 0) 4743 { 4744 obj_in_name = optarg; 4745 iflag++; 4746 } 4747 else 4748 had_errors++; 4749 break; 4750 4751 case 'o': 4752 if (object_name == (char *) 0) 4753 object_name = optarg; 4754 else 4755 had_errors++; 4756 break; 4757 4758 case 'v': 4759 verbose++; 4760 break; 4761 4762 case 'V': 4763 version++; 4764 break; 4765 } 4766 4767 if (version) 4768 { 4769 printf (_("mips-tfile (GCC) %s\n"), version_string); 4770 fputs ("Copyright (C) 2006 Free Software Foundation, Inc.\n", stdout); 4771 fputs (_("This is free software; see the source for copying conditions. There is NO\n\ 4772warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), 4773 stdout); 4774 exit (0); 4775 } 4776 4777 if (obj_in_name == (char *) 0 && optind <= argc - 2) 4778 obj_in_name = argv[--argc]; 4779 4780 if (object_name == (char *) 0 && optind <= argc - 2) 4781 object_name = argv[--argc]; 4782 4783 /* If there is an output name, but no input name use 4784 the same file for both, deleting the name between 4785 opening it for input and opening it for output. */ 4786 if (obj_in_name == (char *) 0 && object_name != (char *) 0) 4787 { 4788 obj_in_name = object_name; 4789 delete_input = 1; 4790 } 4791 4792 if (optind != argc - 1) 4793 had_errors++; 4794 4795 if (verbose || had_errors) 4796 { 4797 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string); 4798#ifdef TARGET_VERSION 4799 TARGET_VERSION; 4800#endif 4801 fputc ('\n', stderr); 4802 } 4803 4804 if (object_name == (char *) 0 || had_errors) 4805 { 4806 fprintf (stderr, _("Calling Sequence:\n")); 4807 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4808 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4809 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n")); 4810 fprintf (stderr, "\n"); 4811 fprintf (stderr, _("Debug levels are:\n")); 4812 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n")); 4813 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n")); 4814 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n")); 4815 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n")); 4816 return 1; 4817 } 4818 4819 if (obj_in_name == (char *) 0) 4820 obj_in_name = object_name; 4821 4822 if (rename_output && rename (object_name, obj_in_name) != 0) 4823 { 4824 char *buffer = (char *) allocate_multiple_pages (4); 4825 int len; 4826 int len2; 4827 int in_fd; 4828 int out_fd; 4829 4830 /* Rename failed, copy input file */ 4831 in_fd = open (object_name, O_RDONLY, 0666); 4832 if (in_fd < 0) 4833 pfatal_with_name (object_name); 4834 4835 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); 4836 if (out_fd < 0) 4837 pfatal_with_name (obj_in_name); 4838 4839 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0) 4840 { 4841 len2 = write (out_fd, buffer, len); 4842 if (len2 < 0) 4843 pfatal_with_name (object_name); 4844 4845 if (len != len2) 4846 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len); 4847 } 4848 4849 free_multiple_pages ((page_t *) buffer, 4); 4850 4851 if (len < 0) 4852 pfatal_with_name (object_name); 4853 4854 if (close (in_fd) < 0) 4855 pfatal_with_name (object_name); 4856 4857 if (close (out_fd) < 0) 4858 pfatal_with_name (obj_in_name); 4859 } 4860 4861 /* Must open input before output, since the output may be the same file, and 4862 we need to get the input handle before truncating it. */ 4863 obj_in_stream = fopen (obj_in_name, "r"); 4864 if (obj_in_stream == (FILE *) 0) 4865 pfatal_with_name (obj_in_name); 4866 4867 if (delete_input && unlink (obj_in_name) != 0) 4868 pfatal_with_name (obj_in_name); 4869 4870 object_stream = fopen (object_name, "w"); 4871 if (object_stream == (FILE *) 0) 4872 pfatal_with_name (object_name); 4873 4874 if (strcmp (argv[optind], "-") != 0) 4875 { 4876 input_name = argv[optind]; 4877 if (freopen (argv[optind], "r", stdin) != stdin) 4878 pfatal_with_name (argv[optind]); 4879 } 4880 4881 copy_object (); /* scan & copy object file */ 4882 parse_input (); /* scan all of input */ 4883 4884 update_headers (); /* write out tfile */ 4885 write_object (); 4886 4887 if (debug) 4888 { 4889 fprintf (stderr, "\n\tAllocation summary:\n\n"); 4890 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++) 4891 if (alloc_counts[i].total_alloc) 4892 { 4893 fprintf (stderr, 4894 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n", 4895 alloc_counts[i].alloc_name, 4896 alloc_counts[i].total_alloc, 4897 alloc_counts[i].total_free, 4898 alloc_counts[i].total_pages); 4899 } 4900 } 4901 4902 return (had_errors) ? 1 : 0; 4903} 4904 4905 4906/* Catch a signal and exit without dumping core. */ 4907 4908STATIC void 4909catch_signal (int signum) 4910{ 4911 (void) signal (signum, SIG_DFL); /* just in case... */ 4912 fatal ("%s", strsignal (signum)); 4913} 4914 4915/* Print a fatal error message. NAME is the text. 4916 Also include a system error message based on `errno'. */ 4917 4918void 4919pfatal_with_name (const char *msg) 4920{ 4921 int save_errno = errno; /* just in case.... */ 4922 if (line_number > 0) 4923 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 4924 else 4925 fprintf (stderr, "%s:", progname); 4926 4927 errno = save_errno; 4928 if (errno == 0) 4929 fprintf (stderr, "[errno = 0] %s\n", msg); 4930 else 4931 perror (msg); 4932 4933 exit (1); 4934} 4935 4936 4937/* Procedure to die with an out of bounds error message. It has 4938 type int, so it can be used with an ?: expression within the 4939 ORIG_xxx macros, but the function never returns. */ 4940 4941static int 4942out_of_bounds (symint_t indx, /* index that is out of bounds */ 4943 symint_t max, /* maximum index */ 4944 const char *str, /* string to print out */ 4945 int prog_line) /* line number within mips-tfile.c */ 4946{ 4947 if (indx < max) /* just in case */ 4948 return 0; 4949 4950 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n", 4951 progname, input_name, line_number, indx, str, max, prog_line); 4952 4953 exit (1); 4954 return 0; /* turn off warning messages */ 4955} 4956 4957 4958/* Allocate a cluster of pages. USE_MALLOC says that malloc does not 4959 like sbrk's behind its back (or sbrk isn't available). If we use 4960 sbrk, we assume it gives us zeroed pages. */ 4961 4962#ifndef MALLOC_CHECK 4963#ifdef USE_MALLOC 4964 4965STATIC page_t * 4966allocate_cluster (Size_t npages) 4967{ 4968 page_t *value = xcalloc (npages, PAGE_USIZE); 4969 4970 if (debug > 3) 4971 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); 4972 4973 return value; 4974} 4975 4976#else /* USE_MALLOC */ 4977 4978STATIC page_t * 4979allocate_cluster (Size_t npages) 4980{ 4981 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */ 4982 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1); 4983 4984 if (offset != 0) /* align to a page boundary */ 4985 { 4986 if (sbrk (PAGE_USIZE - offset) == (char *)-1) 4987 pfatal_with_name ("allocate_cluster"); 4988 4989 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset); 4990 } 4991 4992 if (sbrk (npages * PAGE_USIZE) == (char *) -1) 4993 pfatal_with_name ("allocate_cluster"); 4994 4995 if (debug > 3) 4996 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n", 4997 (unsigned long) npages, (void *) ptr); 4998 4999 return ptr; 5000} 5001 5002#endif /* USE_MALLOC */ 5003 5004 5005static page_t *cluster_ptr = NULL; 5006static unsigned pages_left = 0; 5007 5008#endif /* MALLOC_CHECK */ 5009 5010 5011/* Allocate some pages (which is initialized to 0). */ 5012 5013STATIC page_t * 5014allocate_multiple_pages (Size_t npages) 5015{ 5016#ifndef MALLOC_CHECK 5017 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES) 5018 { 5019 pages_left = MAX_CLUSTER_PAGES; 5020 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5021 } 5022 5023 if (npages <= pages_left) 5024 { 5025 page_t *ptr = cluster_ptr; 5026 cluster_ptr += npages; 5027 pages_left -= npages; 5028 return ptr; 5029 } 5030 5031 return allocate_cluster (npages); 5032 5033#else /* MALLOC_CHECK */ 5034 return xcalloc (npages, PAGE_SIZE); 5035 5036#endif /* MALLOC_CHECK */ 5037} 5038 5039 5040/* Release some pages. */ 5041 5042STATIC void 5043free_multiple_pages (page_t *page_ptr, Size_t npages) 5044{ 5045#ifndef MALLOC_CHECK 5046 if (pages_left == 0) 5047 { 5048 cluster_ptr = page_ptr; 5049 pages_left = npages; 5050 } 5051 5052 else if ((page_ptr + npages) == cluster_ptr) 5053 { 5054 cluster_ptr -= npages; 5055 pages_left += npages; 5056 } 5057 5058 /* otherwise the page is not freed. If more than call is 5059 done, we probably should worry about it, but at present, 5060 the free pages is done right after an allocate. */ 5061 5062#else /* MALLOC_CHECK */ 5063 free (page_ptr); 5064 5065#endif /* MALLOC_CHECK */ 5066} 5067 5068 5069/* Allocate one page (which is initialized to 0). */ 5070 5071STATIC page_t * 5072allocate_page (void) 5073{ 5074#ifndef MALLOC_CHECK 5075 if (pages_left == 0) 5076 { 5077 pages_left = MAX_CLUSTER_PAGES; 5078 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5079 } 5080 5081 pages_left--; 5082 return cluster_ptr++; 5083 5084#else /* MALLOC_CHECK */ 5085 return xcalloc (1, PAGE_SIZE); 5086 5087#endif /* MALLOC_CHECK */ 5088} 5089 5090 5091/* Allocate scoping information. */ 5092 5093STATIC scope_t * 5094allocate_scope (void) 5095{ 5096 scope_t *ptr; 5097 static scope_t initial_scope; 5098 5099#ifndef MALLOC_CHECK 5100 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5101 if (ptr != (scope_t *) 0) 5102 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free; 5103 5104 else 5105 { 5106 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated; 5107 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page; 5108 5109 if (unallocated == 0) 5110 { 5111 unallocated = PAGE_SIZE / sizeof (scope_t); 5112 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page (); 5113 alloc_counts[ (int) alloc_type_scope ].total_pages++; 5114 } 5115 5116 ptr = &cur_page->scope[ --unallocated ]; 5117 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated; 5118 } 5119 5120#else 5121 ptr = xmalloc (sizeof (scope_t)); 5122 5123#endif 5124 5125 alloc_counts[ (int) alloc_type_scope ].total_alloc++; 5126 *ptr = initial_scope; 5127 return ptr; 5128} 5129 5130/* Free scoping information. */ 5131 5132STATIC void 5133free_scope (scope_t *ptr) 5134{ 5135 alloc_counts[ (int) alloc_type_scope ].total_free++; 5136 5137#ifndef MALLOC_CHECK 5138 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5139 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr; 5140 5141#else 5142 free (ptr); 5143#endif 5144 5145} 5146 5147 5148/* Allocate links for pages in a virtual array. */ 5149 5150STATIC vlinks_t * 5151allocate_vlinks (void) 5152{ 5153 vlinks_t *ptr; 5154 static vlinks_t initial_vlinks; 5155 5156#ifndef MALLOC_CHECK 5157 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated; 5158 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page; 5159 5160 if (unallocated == 0) 5161 { 5162 unallocated = PAGE_SIZE / sizeof (vlinks_t); 5163 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page (); 5164 alloc_counts[ (int) alloc_type_vlinks ].total_pages++; 5165 } 5166 5167 ptr = &cur_page->vlinks[ --unallocated ]; 5168 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated; 5169 5170#else 5171 ptr = xmalloc (sizeof (vlinks_t)); 5172 5173#endif 5174 5175 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++; 5176 *ptr = initial_vlinks; 5177 return ptr; 5178} 5179 5180 5181/* Allocate string hash buckets. */ 5182 5183STATIC shash_t * 5184allocate_shash (void) 5185{ 5186 shash_t *ptr; 5187 static shash_t initial_shash; 5188 5189#ifndef MALLOC_CHECK 5190 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated; 5191 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page; 5192 5193 if (unallocated == 0) 5194 { 5195 unallocated = PAGE_SIZE / sizeof (shash_t); 5196 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page (); 5197 alloc_counts[ (int) alloc_type_shash ].total_pages++; 5198 } 5199 5200 ptr = &cur_page->shash[ --unallocated ]; 5201 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated; 5202 5203#else 5204 ptr = xmalloc (sizeof (shash_t)); 5205 5206#endif 5207 5208 alloc_counts[ (int) alloc_type_shash ].total_alloc++; 5209 *ptr = initial_shash; 5210 return ptr; 5211} 5212 5213 5214/* Allocate type hash buckets. */ 5215 5216STATIC thash_t * 5217allocate_thash (void) 5218{ 5219 thash_t *ptr; 5220 static thash_t initial_thash; 5221 5222#ifndef MALLOC_CHECK 5223 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated; 5224 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page; 5225 5226 if (unallocated == 0) 5227 { 5228 unallocated = PAGE_SIZE / sizeof (thash_t); 5229 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page (); 5230 alloc_counts[ (int) alloc_type_thash ].total_pages++; 5231 } 5232 5233 ptr = &cur_page->thash[ --unallocated ]; 5234 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated; 5235 5236#else 5237 ptr = xmalloc (sizeof (thash_t)); 5238 5239#endif 5240 5241 alloc_counts[ (int) alloc_type_thash ].total_alloc++; 5242 *ptr = initial_thash; 5243 return ptr; 5244} 5245 5246 5247/* Allocate structure, union, or enum tag information. */ 5248 5249STATIC tag_t * 5250allocate_tag (void) 5251{ 5252 tag_t *ptr; 5253 static tag_t initial_tag; 5254 5255#ifndef MALLOC_CHECK 5256 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5257 if (ptr != (tag_t *) 0) 5258 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free; 5259 5260 else 5261 { 5262 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated; 5263 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page; 5264 5265 if (unallocated == 0) 5266 { 5267 unallocated = PAGE_SIZE / sizeof (tag_t); 5268 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page (); 5269 alloc_counts[ (int) alloc_type_tag ].total_pages++; 5270 } 5271 5272 ptr = &cur_page->tag[ --unallocated ]; 5273 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated; 5274 } 5275 5276#else 5277 ptr = xmalloc (sizeof (tag_t)); 5278 5279#endif 5280 5281 alloc_counts[ (int) alloc_type_tag ].total_alloc++; 5282 *ptr = initial_tag; 5283 return ptr; 5284} 5285 5286/* Free scoping information. */ 5287 5288STATIC void 5289free_tag (tag_t *ptr) 5290{ 5291 alloc_counts[ (int) alloc_type_tag ].total_free++; 5292 5293#ifndef MALLOC_CHECK 5294 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5295 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr; 5296 5297#else 5298 free (ptr); 5299#endif 5300 5301} 5302 5303 5304/* Allocate forward reference to a yet unknown tag. */ 5305 5306STATIC forward_t * 5307allocate_forward (void) 5308{ 5309 forward_t *ptr; 5310 static forward_t initial_forward; 5311 5312#ifndef MALLOC_CHECK 5313 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5314 if (ptr != (forward_t *) 0) 5315 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free; 5316 5317 else 5318 { 5319 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated; 5320 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page; 5321 5322 if (unallocated == 0) 5323 { 5324 unallocated = PAGE_SIZE / sizeof (forward_t); 5325 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page (); 5326 alloc_counts[ (int) alloc_type_forward ].total_pages++; 5327 } 5328 5329 ptr = &cur_page->forward[ --unallocated ]; 5330 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated; 5331 } 5332 5333#else 5334 ptr = xmalloc (sizeof (forward_t)); 5335 5336#endif 5337 5338 alloc_counts[ (int) alloc_type_forward ].total_alloc++; 5339 *ptr = initial_forward; 5340 return ptr; 5341} 5342 5343/* Free scoping information. */ 5344 5345STATIC void 5346free_forward (forward_t *ptr) 5347{ 5348 alloc_counts[ (int) alloc_type_forward ].total_free++; 5349 5350#ifndef MALLOC_CHECK 5351 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5352 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr; 5353 5354#else 5355 free (ptr); 5356#endif 5357 5358} 5359 5360 5361/* Allocate head of type hash list. */ 5362 5363STATIC thead_t * 5364allocate_thead (void) 5365{ 5366 thead_t *ptr; 5367 static thead_t initial_thead; 5368 5369#ifndef MALLOC_CHECK 5370 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5371 if (ptr != (thead_t *) 0) 5372 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free; 5373 5374 else 5375 { 5376 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated; 5377 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page; 5378 5379 if (unallocated == 0) 5380 { 5381 unallocated = PAGE_SIZE / sizeof (thead_t); 5382 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page (); 5383 alloc_counts[ (int) alloc_type_thead ].total_pages++; 5384 } 5385 5386 ptr = &cur_page->thead[ --unallocated ]; 5387 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated; 5388 } 5389 5390#else 5391 ptr = xmalloc (sizeof (thead_t)); 5392 5393#endif 5394 5395 alloc_counts[ (int) alloc_type_thead ].total_alloc++; 5396 *ptr = initial_thead; 5397 return ptr; 5398} 5399 5400/* Free scoping information. */ 5401 5402STATIC void 5403free_thead (thead_t *ptr) 5404{ 5405 alloc_counts[ (int) alloc_type_thead ].total_free++; 5406 5407#ifndef MALLOC_CHECK 5408 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5409 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr; 5410 5411#else 5412 free (ptr); 5413#endif 5414 5415} 5416 5417#endif /* MIPS_DEBUGGING_INFO */ 5418 5419 5420/* Output an error message and exit. */ 5421 5422void 5423fatal (const char *format, ...) 5424{ 5425 va_list ap; 5426 5427 va_start (ap, format); 5428 5429 if (line_number > 0) 5430 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5431 else 5432 fprintf (stderr, "%s:", progname); 5433 5434 vfprintf (stderr, format, ap); 5435 va_end (ap); 5436 fprintf (stderr, "\n"); 5437 if (line_number > 0) 5438 fprintf (stderr, "line:\t%s\n", cur_line_start); 5439 5440 saber_stop (); 5441 exit (1); 5442} 5443 5444void 5445error (const char *format, ...) 5446{ 5447 va_list ap; 5448 5449 va_start (ap, format); 5450 5451 if (line_number > 0) 5452 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5453 else 5454 fprintf (stderr, "%s:", progname); 5455 5456 vfprintf (stderr, format, ap); 5457 fprintf (stderr, "\n"); 5458 if (line_number > 0) 5459 fprintf (stderr, "line:\t%s\n", cur_line_start); 5460 5461 had_errors++; 5462 va_end (ap); 5463 5464 saber_stop (); 5465} 5466 5467/* More 'friendly' abort that prints the line and file. */ 5468 5469void 5470fancy_abort (const char *file, int line, const char *func) 5471{ 5472 fatal ("abort in %s, at %s:%d", func, file, line); 5473} 5474 5475 5476/* When `malloc.c' is compiled with `rcheck' defined, 5477 it calls this function to report clobberage. */ 5478 5479void 5480botch (const char *s) 5481{ 5482 fatal ("%s", s); 5483} 5484