mips-tfile.c revision 132718
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 Free Software Foundation, Inc. 7 Contributed by Michael Meissner (meissner@cygnus.com). 8 9This file is part of GCC. 10 11GCC is free software; you can redistribute it and/or modify it under 12the terms of the GNU General Public License as published by the Free 13Software Foundation; either version 2, or (at your option) any later 14version. 15 16GCC is distributed in the hope that it will be useful, but WITHOUT ANY 17WARRANTY; without even the implied warranty of MERCHANTABILITY or 18FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19for more details. 20 21You should have received a copy of the GNU General Public License 22along with GCC; see the file COPYING. If not, write to the Free 23Software Foundation, 59 Temple Place - Suite 330, Boston, MA 2402111-1307, USA. */ 25 26 27/* Here is a brief description of the MIPS ECOFF symbol table. The 28 MIPS symbol table has the following pieces: 29 30 Symbolic Header 31 | 32 +-- Auxiliary Symbols 33 | 34 +-- Dense number table 35 | 36 +-- Optimizer Symbols 37 | 38 +-- External Strings 39 | 40 +-- External Symbols 41 | 42 +-- Relative file descriptors 43 | 44 +-- File table 45 | 46 +-- Procedure table 47 | 48 +-- Line number table 49 | 50 +-- Local Strings 51 | 52 +-- Local Symbols 53 54 The symbolic header points to each of the other tables, and also 55 contains the number of entries. It also contains a magic number 56 and MIPS compiler version number, such as 2.0. 57 58 The auxiliary table is a series of 32 bit integers, that are 59 referenced as needed from the local symbol table. Unlike standard 60 COFF, the aux. information does not follow the symbol that uses 61 it, but rather is a separate table. In theory, this would allow 62 the MIPS compilers to collapse duplicate aux. entries, but I've not 63 noticed this happening with the 1.31 compiler suite. The different 64 types of aux. entries are: 65 66 1) dnLow: Low bound on array dimension. 67 68 2) dnHigh: High bound on array dimension. 69 70 3) isym: Index to the local symbol which is the start of the 71 function for the end of function first aux. entry. 72 73 4) width: Width of structures and bitfields. 74 75 5) count: Count of ranges for variant part. 76 77 6) rndx: A relative index into the symbol table. The relative 78 index field has two parts: rfd which is a pointer into the 79 relative file index table or ST_RFDESCAPE which says the next 80 aux. entry is the file number, and index: which is the pointer 81 into the local symbol within a given file table. This is for 82 things like references to types defined in another file. 83 84 7) Type information: This is like the COFF type bits, except it 85 is 32 bits instead of 16; they still have room to add new 86 basic types; and they can handle more than 6 levels of array, 87 pointer, function, etc. Each type information field contains 88 the following structure members: 89 90 a) fBitfield: a bit that says this is a bitfield, and the 91 size in bits follows as the next aux. entry. 92 93 b) continued: a bit that says the next aux. entry is a 94 continuation of the current type information (in case 95 there are more than 6 levels of array/ptr/function). 96 97 c) bt: an integer containing the base type before adding 98 array, pointer, function, etc. qualifiers. The 99 current base types that I have documentation for are: 100 101 btNil -- undefined 102 btAdr -- address - integer same size as ptr 103 btChar -- character 104 btUChar -- unsigned character 105 btShort -- short 106 btUShort -- unsigned short 107 btInt -- int 108 btUInt -- unsigned int 109 btLong -- long 110 btULong -- unsigned long 111 btFloat -- float (real) 112 btDouble -- Double (real) 113 btStruct -- Structure (Record) 114 btUnion -- Union (variant) 115 btEnum -- Enumerated 116 btTypedef -- defined via a typedef isymRef 117 btRange -- subrange of int 118 btSet -- pascal sets 119 btComplex -- fortran complex 120 btDComplex -- fortran double complex 121 btIndirect -- forward or unnamed typedef 122 btFixedDec -- Fixed Decimal 123 btFloatDec -- Float Decimal 124 btString -- Varying Length Character String 125 btBit -- Aligned Bit String 126 btPicture -- Picture 127 btVoid -- Void (MIPS cc revision >= 2.00) 128 129 d) tq0 - tq5: type qualifier fields as needed. The 130 current type qualifier fields I have documentation for 131 are: 132 133 tqNil -- no more qualifiers 134 tqPtr -- pointer 135 tqProc -- procedure 136 tqArray -- array 137 tqFar -- 8086 far pointers 138 tqVol -- volatile 139 140 141 The dense number table is used in the front ends, and disappears by 142 the time the .o is created. 143 144 With the 1.31 compiler suite, the optimization symbols don't seem 145 to be used as far as I can tell. 146 147 The linker is the first entity that creates the relative file 148 descriptor table, and I believe it is used so that the individual 149 file table pointers don't have to be rewritten when the objects are 150 merged together into the program file. 151 152 Unlike COFF, the basic symbol & string tables are split into 153 external and local symbols/strings. The relocation information 154 only goes off of the external symbol table, and the debug 155 information only goes off of the internal symbol table. The 156 external symbols can have links to an appropriate file index and 157 symbol within the file to give it the appropriate type information. 158 Because of this, the external symbols are actually larger than the 159 internal symbols (to contain the link information), and contain the 160 local symbol structure as a member, though this member is not the 161 first member of the external symbol structure (!). I suspect this 162 split is to make strip easier to deal with. 163 164 Each file table has offsets for where the line numbers, local 165 strings, local symbols, and procedure table starts from within the 166 global tables, and the 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 fancy_abort (void) ATTRIBUTE_NORETURN; 641extern void botch (const char *) ATTRIBUTE_NORETURN; 642 643extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN; 644extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1; 645 646#ifndef MIPS_DEBUGGING_INFO 647 648static int line_number; 649static int cur_line_start; 650static int debug; 651static int had_errors; 652static const char *progname; 653static const char *input_name; 654 655int 656main (void) 657{ 658 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n"); 659 exit (1); 660} 661 662#else /* MIPS_DEBUGGING defined */ 663 664/* The local and global symbols have a field index, so undo any defines 665 of index -> strchr. */ 666 667#undef index 668 669#include <signal.h> 670 671#ifndef CROSS_COMPILE 672#include <a.out.h> 673#else 674#include "mips/a.out.h" 675#endif /* CROSS_COMPILE */ 676 677#include "gstab.h" 678 679#define STAB_CODE_TYPE enum __stab_debug_code 680 681#ifndef MALLOC_CHECK 682#ifdef __SABER__ 683#define MALLOC_CHECK 684#endif 685#endif 686 687#define IS_ASM_IDENT(ch) \ 688 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$') 689 690 691/* Redefinition of storage classes as an enumeration for better 692 debugging. */ 693 694typedef enum sc { 695 sc_Nil = scNil, /* no storage class */ 696 sc_Text = scText, /* text symbol */ 697 sc_Data = scData, /* initialized data symbol */ 698 sc_Bss = scBss, /* un-initialized data symbol */ 699 sc_Register = scRegister, /* value of symbol is register number */ 700 sc_Abs = scAbs, /* value of symbol is absolute */ 701 sc_Undefined = scUndefined, /* who knows? */ 702 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ 703 sc_Bits = scBits, /* this is a bit field */ 704 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ 705 sc_RegImage = scRegImage, /* register value saved on stack */ 706 sc_Info = scInfo, /* symbol contains debugger information */ 707 sc_UserStruct = scUserStruct, /* addr in struct user for current process */ 708 sc_SData = scSData, /* load time only small data */ 709 sc_SBss = scSBss, /* load time only small common */ 710 sc_RData = scRData, /* load time only read only data */ 711 sc_Var = scVar, /* Var parameter (fortran,pascal) */ 712 sc_Common = scCommon, /* common variable */ 713 sc_SCommon = scSCommon, /* small common */ 714 sc_VarRegister = scVarRegister, /* Var parameter in a register */ 715 sc_Variant = scVariant, /* Variant record */ 716 sc_SUndefined = scSUndefined, /* small undefined(external) data */ 717 sc_Init = scInit, /* .init section symbol */ 718 sc_Max = scMax /* Max storage class+1 */ 719} sc_t; 720 721/* Redefinition of symbol type. */ 722 723typedef enum st { 724 st_Nil = stNil, /* Nuthin' special */ 725 st_Global = stGlobal, /* external symbol */ 726 st_Static = stStatic, /* static */ 727 st_Param = stParam, /* procedure argument */ 728 st_Local = stLocal, /* local variable */ 729 st_Label = stLabel, /* label */ 730 st_Proc = stProc, /* " " Procedure */ 731 st_Block = stBlock, /* beginning of block */ 732 st_End = stEnd, /* end (of anything) */ 733 st_Member = stMember, /* member (of anything - struct/union/enum */ 734 st_Typedef = stTypedef, /* type definition */ 735 st_File = stFile, /* file name */ 736 st_RegReloc = stRegReloc, /* register relocation */ 737 st_Forward = stForward, /* forwarding address */ 738 st_StaticProc = stStaticProc, /* load time only static procs */ 739 st_Constant = stConstant, /* const */ 740 st_Str = stStr, /* string */ 741 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ 742 st_Expr = stExpr, /* 2+2 vs. 4 */ 743 st_Type = stType, /* post-coercion SER */ 744 st_Max = stMax /* max type+1 */ 745} st_t; 746 747/* Redefinition of type qualifiers. */ 748 749typedef enum tq { 750 tq_Nil = tqNil, /* bt is what you see */ 751 tq_Ptr = tqPtr, /* pointer */ 752 tq_Proc = tqProc, /* procedure */ 753 tq_Array = tqArray, /* duh */ 754 tq_Far = tqFar, /* longer addressing - 8086/8 land */ 755 tq_Vol = tqVol, /* volatile */ 756 tq_Max = tqMax /* Max type qualifier+1 */ 757} tq_t; 758 759/* Redefinition of basic types. */ 760 761typedef enum bt { 762 bt_Nil = btNil, /* undefined */ 763 bt_Adr = btAdr, /* address - integer same size as pointer */ 764 bt_Char = btChar, /* character */ 765 bt_UChar = btUChar, /* unsigned character */ 766 bt_Short = btShort, /* short */ 767 bt_UShort = btUShort, /* unsigned short */ 768 bt_Int = btInt, /* int */ 769 bt_UInt = btUInt, /* unsigned int */ 770 bt_Long = btLong, /* long */ 771 bt_ULong = btULong, /* unsigned long */ 772 bt_Float = btFloat, /* float (real) */ 773 bt_Double = btDouble, /* Double (real) */ 774 bt_Struct = btStruct, /* Structure (Record) */ 775 bt_Union = btUnion, /* Union (variant) */ 776 bt_Enum = btEnum, /* Enumerated */ 777 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ 778 bt_Range = btRange, /* subrange of int */ 779 bt_Set = btSet, /* pascal sets */ 780 bt_Complex = btComplex, /* fortran complex */ 781 bt_DComplex = btDComplex, /* fortran double complex */ 782 bt_Indirect = btIndirect, /* forward or unnamed typedef */ 783 bt_FixedDec = btFixedDec, /* Fixed Decimal */ 784 bt_FloatDec = btFloatDec, /* Float Decimal */ 785 bt_String = btString, /* Varying Length Character String */ 786 bt_Bit = btBit, /* Aligned Bit String */ 787 bt_Picture = btPicture, /* Picture */ 788 789#ifdef btVoid 790 bt_Void = btVoid, /* Void */ 791#else 792#define bt_Void bt_Nil 793#endif 794 795 bt_Max = btMax /* Max basic type+1 */ 796} bt_t; 797 798 799 800/* Basic COFF storage classes. */ 801enum coff_storage { 802 C_EFCN = -1, 803 C_NULL = 0, 804 C_AUTO = 1, 805 C_EXT = 2, 806 C_STAT = 3, 807 C_REG = 4, 808 C_EXTDEF = 5, 809 C_LABEL = 6, 810 C_ULABEL = 7, 811 C_MOS = 8, 812 C_ARG = 9, 813 C_STRTAG = 10, 814 C_MOU = 11, 815 C_UNTAG = 12, 816 C_TPDEF = 13, 817 C_USTATIC = 14, 818 C_ENTAG = 15, 819 C_MOE = 16, 820 C_REGPARM = 17, 821 C_FIELD = 18, 822 C_BLOCK = 100, 823 C_FCN = 101, 824 C_EOS = 102, 825 C_FILE = 103, 826 C_LINE = 104, 827 C_ALIAS = 105, 828 C_HIDDEN = 106, 829 C_MAX = 107 830} coff_storage_t; 831 832/* Regular COFF fundamental type. */ 833typedef enum coff_type { 834 T_NULL = 0, 835 T_ARG = 1, 836 T_CHAR = 2, 837 T_SHORT = 3, 838 T_INT = 4, 839 T_LONG = 5, 840 T_FLOAT = 6, 841 T_DOUBLE = 7, 842 T_STRUCT = 8, 843 T_UNION = 9, 844 T_ENUM = 10, 845 T_MOE = 11, 846 T_UCHAR = 12, 847 T_USHORT = 13, 848 T_UINT = 14, 849 T_ULONG = 15, 850 T_MAX = 16 851} coff_type_t; 852 853/* Regular COFF derived types. */ 854typedef enum coff_dt { 855 DT_NON = 0, 856 DT_PTR = 1, 857 DT_FCN = 2, 858 DT_ARY = 3, 859 DT_MAX = 4 860} coff_dt_t; 861 862#define N_BTMASK 017 /* bitmask to isolate basic type */ 863#define N_TMASK 003 /* bitmask to isolate derived type */ 864#define N_BT_SHIFT 4 /* # bits to shift past basic type */ 865#define N_TQ_SHIFT 2 /* # bits to shift derived types */ 866#define N_TQ 6 /* # of type qualifiers */ 867 868/* States for whether to hash type or not. */ 869typedef enum hash_state { 870 hash_no = 0, /* don't hash type */ 871 hash_yes = 1, /* ok to hash type, or use previous hash */ 872 hash_record = 2 /* ok to record hash, but don't use prev. */ 873} hash_state_t; 874 875 876/* Types of different sized allocation requests. */ 877enum alloc_type { 878 alloc_type_none, /* dummy value */ 879 alloc_type_scope, /* nested scopes linked list */ 880 alloc_type_vlinks, /* glue linking pages in varray */ 881 alloc_type_shash, /* string hash element */ 882 alloc_type_thash, /* type hash element */ 883 alloc_type_tag, /* struct/union/tag element */ 884 alloc_type_forward, /* element to hold unknown tag */ 885 alloc_type_thead, /* head of type hash list */ 886 alloc_type_varray, /* general varray allocation */ 887 alloc_type_last /* last+1 element for array bounds */ 888}; 889 890 891#define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1)) 892#define DWORD_ALIGN(x) (((x) + 7) & ~7) 893 894 895/* Structures to provide n-number of virtual arrays, each of which can 896 grow linearly, and which are written in the object file as sequential 897 pages. On systems with a BSD malloc that define USE_MALLOC, the 898 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc 899 adds its overhead, and rounds up to the next power of 2. Pages are 900 linked together via a linked list. */ 901 902#ifndef PAGE_SIZE 903#define PAGE_SIZE 32768 /* size of varray pages */ 904#endif 905 906#define PAGE_USIZE ((Size_t) PAGE_SIZE) 907 908 909#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ 910#ifndef USE_MALLOC /* in one memory request */ 911#define MAX_CLUSTER_PAGES 64 912#else 913#define MAX_CLUSTER_PAGES 63 914#endif 915#endif 916 917 918/* Linked list connecting separate page allocations. */ 919typedef struct vlinks { 920 struct vlinks *prev; /* previous set of pages */ 921 struct vlinks *next; /* next set of pages */ 922 union page *datum; /* start of page */ 923 unsigned long start_index; /* starting index # of page */ 924} vlinks_t; 925 926 927/* Virtual array header. */ 928typedef struct varray { 929 vlinks_t *first; /* first page link */ 930 vlinks_t *last; /* last page link */ 931 unsigned long num_allocated; /* # objects allocated */ 932 unsigned short object_size; /* size in bytes of each object */ 933 unsigned short objects_per_page; /* # objects that can fit on a page */ 934 unsigned short objects_last_page; /* # objects allocated on last page */ 935} varray_t; 936 937#ifndef MALLOC_CHECK 938#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) 939#else 940#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) 941#endif 942 943#define INIT_VARRAY(type) { /* macro to initialize a varray */ \ 944 (vlinks_t *) 0, /* first */ \ 945 (vlinks_t *) 0, /* last */ \ 946 0, /* num_allocated */ \ 947 sizeof (type), /* object_size */ \ 948 OBJECTS_PER_PAGE (type), /* objects_per_page */ \ 949 OBJECTS_PER_PAGE (type), /* objects_last_page */ \ 950} 951 952#define INITIALIZE_VARRAY(x,type) \ 953do { \ 954 (x)->object_size = sizeof (type); \ 955 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \ 956 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \ 957} while (0) 958 959/* Master type for indexes within the symbol table. */ 960typedef unsigned long symint_t; 961 962 963/* Linked list support for nested scopes (file, block, structure, etc.). */ 964typedef struct scope { 965 struct scope *prev; /* previous scope level */ 966 struct scope *free; /* free list pointer */ 967 SYMR *lsym; /* pointer to local symbol node */ 968 symint_t lnumber; /* lsym index */ 969 st_t type; /* type of the node */ 970} scope_t; 971 972 973/* Forward reference list for tags referenced, but not yet defined. */ 974typedef struct forward { 975 struct forward *next; /* next forward reference */ 976 struct forward *free; /* free list pointer */ 977 AUXU *ifd_ptr; /* pointer to store file index */ 978 AUXU *index_ptr; /* pointer to store symbol index */ 979 AUXU *type_ptr; /* pointer to munge type info */ 980} forward_t; 981 982 983/* Linked list support for tags. The first tag in the list is always 984 the current tag for that block. */ 985typedef struct tag { 986 struct tag *free; /* free list pointer */ 987 struct shash *hash_ptr; /* pointer to the hash table head */ 988 struct tag *same_name; /* tag with same name in outer scope */ 989 struct tag *same_block; /* next tag defined in the same block. */ 990 struct forward *forward_ref; /* list of forward references */ 991 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ 992 symint_t ifd; /* file # tag defined in */ 993 symint_t indx; /* index within file's local symbols */ 994} tag_t; 995 996 997/* Head of a block's linked list of tags. */ 998typedef struct thead { 999 struct thead *prev; /* previous block */ 1000 struct thead *free; /* free list pointer */ 1001 struct tag *first_tag; /* first tag in block defined */ 1002} thead_t; 1003 1004 1005/* Union containing pointers to each the small structures which are freed up. */ 1006typedef union small_free { 1007 scope_t *f_scope; /* scope structure */ 1008 thead_t *f_thead; /* tag head structure */ 1009 tag_t *f_tag; /* tag element structure */ 1010 forward_t *f_forward; /* forward tag reference */ 1011} small_free_t; 1012 1013 1014/* String hash table support. The size of the hash table must fit 1015 within a page. */ 1016 1017#ifndef SHASH_SIZE 1018#define SHASH_SIZE 1009 1019#endif 1020 1021#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */ 1022 1023typedef struct shash { 1024 struct shash *next; /* next hash value */ 1025 char *string; /* string we are hashing */ 1026 symint_t len; /* string length */ 1027 symint_t indx; /* index within string table */ 1028 EXTR *esym_ptr; /* global symbol pointer */ 1029 SYMR *sym_ptr; /* local symbol pointer */ 1030 SYMR *end_ptr; /* symbol pointer to end block */ 1031 tag_t *tag_ptr; /* tag pointer */ 1032 PDR *proc_ptr; /* procedure descriptor pointer */ 1033} shash_t; 1034 1035 1036/* Type hash table support. The size of the hash table must fit 1037 within a page with the other extended file descriptor information. 1038 Because unique types which are hashed are fewer in number than 1039 strings, we use a smaller hash value. */ 1040 1041#ifndef THASH_SIZE 1042#define THASH_SIZE 113 1043#endif 1044 1045typedef struct thash { 1046 struct thash *next; /* next hash value */ 1047 AUXU type; /* type we are hashing */ 1048 symint_t indx; /* index within string table */ 1049} thash_t; 1050 1051 1052/* Extended file descriptor that contains all of the support necessary 1053 to add things to each file separately. */ 1054typedef struct efdr { 1055 FDR fdr; /* File header to be written out */ 1056 FDR *orig_fdr; /* original file header */ 1057 char *name; /* filename */ 1058 int name_len; /* length of the filename */ 1059 symint_t void_type; /* aux. pointer to 'void' type */ 1060 symint_t int_type; /* aux. pointer to 'int' type */ 1061 scope_t *cur_scope; /* current nested scopes */ 1062 symint_t file_index; /* current file number */ 1063 int nested_scopes; /* # nested scopes */ 1064 varray_t strings; /* local strings */ 1065 varray_t symbols; /* local symbols */ 1066 varray_t procs; /* procedures */ 1067 varray_t aux_syms; /* auxiliary symbols */ 1068 struct efdr *next_file; /* next file descriptor */ 1069 /* string/type hash tables */ 1070 shash_t **shash_head; /* string hash table */ 1071 thash_t *thash_head[THASH_SIZE]; 1072} efdr_t; 1073 1074/* Pre-initialized extended file structure. */ 1075static int init_file_initialized = 0; 1076static efdr_t init_file; 1077 1078static efdr_t *first_file; /* first file descriptor */ 1079static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ 1080 1081 1082/* Union of various things that are held in pages. */ 1083typedef union page { 1084 char byte [ PAGE_SIZE ]; 1085 unsigned char ubyte [ PAGE_SIZE ]; 1086 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; 1087 FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; 1088 PDR proc [ PAGE_SIZE / sizeof (PDR) ]; 1089 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ]; 1090 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ]; 1091 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ]; 1092 DNR dense [ PAGE_SIZE / sizeof (DNR) ]; 1093 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; 1094 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; 1095 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; 1096 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; 1097 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; 1098 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; 1099 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; 1100} page_t; 1101 1102 1103/* Structure holding allocation information for small sized structures. */ 1104typedef struct alloc_info { 1105 const char *alloc_name; /* name of this allocation type (must be first) */ 1106 page_t *cur_page; /* current page being allocated from */ 1107 small_free_t free_list; /* current free list if any */ 1108 int unallocated; /* number of elements unallocated on page */ 1109 int total_alloc; /* total number of allocations */ 1110 int total_free; /* total number of frees */ 1111 int total_pages; /* total number of pages allocated */ 1112} alloc_info_t; 1113 1114/* Type information collected together. */ 1115typedef struct type_info { 1116 bt_t basic_type; /* basic type */ 1117 coff_type_t orig_type; /* original COFF-based type */ 1118 int num_tq; /* # type qualifiers */ 1119 int num_dims; /* # dimensions */ 1120 int num_sizes; /* # sizes */ 1121 int extra_sizes; /* # extra sizes not tied with dims */ 1122 tag_t * tag_ptr; /* tag pointer */ 1123 int bitfield; /* symbol is a bitfield */ 1124 int unknown_tag; /* this is an unknown tag */ 1125 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ 1126 symint_t dimensions [N_TQ]; /* dimensions for each array */ 1127 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of 1128 struct/union/enum + bitfield size */ 1129} type_info_t; 1130 1131/* Pre-initialized type_info struct. */ 1132static type_info_t type_info_init = { 1133 bt_Nil, /* basic type */ 1134 T_NULL, /* original COFF-based type */ 1135 0, /* # type qualifiers */ 1136 0, /* # dimensions */ 1137 0, /* # sizes */ 1138 0, /* sizes not tied with dims */ 1139 NULL, /* ptr to tag */ 1140 0, /* bitfield */ 1141 0, /* unknown tag */ 1142 { /* type qualifiers */ 1143 tq_Nil, 1144 tq_Nil, 1145 tq_Nil, 1146 tq_Nil, 1147 tq_Nil, 1148 tq_Nil, 1149 }, 1150 { /* dimensions */ 1151 0, 1152 0, 1153 0, 1154 0, 1155 0, 1156 0 1157 }, 1158 { /* sizes */ 1159 0, 1160 0, 1161 0, 1162 0, 1163 0, 1164 0, 1165 0, 1166 0, 1167 }, 1168}; 1169 1170 1171/* Global virtual arrays & hash table for external strings as well as 1172 for the tags table and global tables for file descriptors, and 1173 dense numbers. */ 1174 1175static varray_t file_desc = INIT_VARRAY (efdr_t); 1176static varray_t dense_num = INIT_VARRAY (DNR); 1177static varray_t tag_strings = INIT_VARRAY (char); 1178static varray_t ext_strings = INIT_VARRAY (char); 1179static varray_t ext_symbols = INIT_VARRAY (EXTR); 1180 1181static shash_t *orig_str_hash[SHASH_SIZE]; 1182static shash_t *ext_str_hash [SHASH_SIZE]; 1183static shash_t *tag_hash [SHASH_SIZE]; 1184 1185/* Static types for int and void. Also, remember the last function's 1186 type (which is set up when we encounter the declaration for the 1187 function, and used when the end block for the function is emitted. */ 1188 1189static type_info_t int_type_info; 1190static type_info_t void_type_info; 1191static type_info_t last_func_type_info; 1192static EXTR *last_func_eptr; 1193 1194 1195/* Convert COFF basic type to ECOFF basic type. The T_NULL type 1196 really should use bt_Void, but this causes the current ecoff GDB to 1197 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS 1198 2.0) doesn't understand it, even though the compiler generates it. 1199 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler 1200 suite, but for now go with what works. */ 1201 1202static const bt_t map_coff_types[ (int) T_MAX ] = { 1203 bt_Nil, /* T_NULL */ 1204 bt_Nil, /* T_ARG */ 1205 bt_Char, /* T_CHAR */ 1206 bt_Short, /* T_SHORT */ 1207 bt_Int, /* T_INT */ 1208 bt_Long, /* T_LONG */ 1209 bt_Float, /* T_FLOAT */ 1210 bt_Double, /* T_DOUBLE */ 1211 bt_Struct, /* T_STRUCT */ 1212 bt_Union, /* T_UNION */ 1213 bt_Enum, /* T_ENUM */ 1214 bt_Enum, /* T_MOE */ 1215 bt_UChar, /* T_UCHAR */ 1216 bt_UShort, /* T_USHORT */ 1217 bt_UInt, /* T_UINT */ 1218 bt_ULong /* T_ULONG */ 1219}; 1220 1221/* Convert COFF storage class to ECOFF storage class. */ 1222static const sc_t map_coff_storage[ (int) C_MAX ] = { 1223 sc_Nil, /* 0: C_NULL */ 1224 sc_Abs, /* 1: C_AUTO auto var */ 1225 sc_Undefined, /* 2: C_EXT external */ 1226 sc_Data, /* 3: C_STAT static */ 1227 sc_Register, /* 4: C_REG register */ 1228 sc_Undefined, /* 5: C_EXTDEF ??? */ 1229 sc_Text, /* 6: C_LABEL label */ 1230 sc_Text, /* 7: C_ULABEL user label */ 1231 sc_Info, /* 8: C_MOS member of struct */ 1232 sc_Abs, /* 9: C_ARG argument */ 1233 sc_Info, /* 10: C_STRTAG struct tag */ 1234 sc_Info, /* 11: C_MOU member of union */ 1235 sc_Info, /* 12: C_UNTAG union tag */ 1236 sc_Info, /* 13: C_TPDEF typedef */ 1237 sc_Data, /* 14: C_USTATIC ??? */ 1238 sc_Info, /* 15: C_ENTAG enum tag */ 1239 sc_Info, /* 16: C_MOE member of enum */ 1240 sc_Register, /* 17: C_REGPARM register parameter */ 1241 sc_Bits, /* 18; C_FIELD bitfield */ 1242 sc_Nil, /* 19 */ 1243 sc_Nil, /* 20 */ 1244 sc_Nil, /* 21 */ 1245 sc_Nil, /* 22 */ 1246 sc_Nil, /* 23 */ 1247 sc_Nil, /* 24 */ 1248 sc_Nil, /* 25 */ 1249 sc_Nil, /* 26 */ 1250 sc_Nil, /* 27 */ 1251 sc_Nil, /* 28 */ 1252 sc_Nil, /* 29 */ 1253 sc_Nil, /* 30 */ 1254 sc_Nil, /* 31 */ 1255 sc_Nil, /* 32 */ 1256 sc_Nil, /* 33 */ 1257 sc_Nil, /* 34 */ 1258 sc_Nil, /* 35 */ 1259 sc_Nil, /* 36 */ 1260 sc_Nil, /* 37 */ 1261 sc_Nil, /* 38 */ 1262 sc_Nil, /* 39 */ 1263 sc_Nil, /* 40 */ 1264 sc_Nil, /* 41 */ 1265 sc_Nil, /* 42 */ 1266 sc_Nil, /* 43 */ 1267 sc_Nil, /* 44 */ 1268 sc_Nil, /* 45 */ 1269 sc_Nil, /* 46 */ 1270 sc_Nil, /* 47 */ 1271 sc_Nil, /* 48 */ 1272 sc_Nil, /* 49 */ 1273 sc_Nil, /* 50 */ 1274 sc_Nil, /* 51 */ 1275 sc_Nil, /* 52 */ 1276 sc_Nil, /* 53 */ 1277 sc_Nil, /* 54 */ 1278 sc_Nil, /* 55 */ 1279 sc_Nil, /* 56 */ 1280 sc_Nil, /* 57 */ 1281 sc_Nil, /* 58 */ 1282 sc_Nil, /* 59 */ 1283 sc_Nil, /* 60 */ 1284 sc_Nil, /* 61 */ 1285 sc_Nil, /* 62 */ 1286 sc_Nil, /* 63 */ 1287 sc_Nil, /* 64 */ 1288 sc_Nil, /* 65 */ 1289 sc_Nil, /* 66 */ 1290 sc_Nil, /* 67 */ 1291 sc_Nil, /* 68 */ 1292 sc_Nil, /* 69 */ 1293 sc_Nil, /* 70 */ 1294 sc_Nil, /* 71 */ 1295 sc_Nil, /* 72 */ 1296 sc_Nil, /* 73 */ 1297 sc_Nil, /* 74 */ 1298 sc_Nil, /* 75 */ 1299 sc_Nil, /* 76 */ 1300 sc_Nil, /* 77 */ 1301 sc_Nil, /* 78 */ 1302 sc_Nil, /* 79 */ 1303 sc_Nil, /* 80 */ 1304 sc_Nil, /* 81 */ 1305 sc_Nil, /* 82 */ 1306 sc_Nil, /* 83 */ 1307 sc_Nil, /* 84 */ 1308 sc_Nil, /* 85 */ 1309 sc_Nil, /* 86 */ 1310 sc_Nil, /* 87 */ 1311 sc_Nil, /* 88 */ 1312 sc_Nil, /* 89 */ 1313 sc_Nil, /* 90 */ 1314 sc_Nil, /* 91 */ 1315 sc_Nil, /* 92 */ 1316 sc_Nil, /* 93 */ 1317 sc_Nil, /* 94 */ 1318 sc_Nil, /* 95 */ 1319 sc_Nil, /* 96 */ 1320 sc_Nil, /* 97 */ 1321 sc_Nil, /* 98 */ 1322 sc_Nil, /* 99 */ 1323 sc_Text, /* 100: C_BLOCK block start/end */ 1324 sc_Text, /* 101: C_FCN function start/end */ 1325 sc_Info, /* 102: C_EOS end of struct/union/enum */ 1326 sc_Nil, /* 103: C_FILE file start */ 1327 sc_Nil, /* 104: C_LINE line number */ 1328 sc_Nil, /* 105: C_ALIAS combined type info */ 1329 sc_Nil, /* 106: C_HIDDEN ??? */ 1330}; 1331 1332/* Convert COFF storage class to ECOFF symbol type. */ 1333static const st_t map_coff_sym_type[ (int) C_MAX ] = { 1334 st_Nil, /* 0: C_NULL */ 1335 st_Local, /* 1: C_AUTO auto var */ 1336 st_Global, /* 2: C_EXT external */ 1337 st_Static, /* 3: C_STAT static */ 1338 st_Local, /* 4: C_REG register */ 1339 st_Global, /* 5: C_EXTDEF ??? */ 1340 st_Label, /* 6: C_LABEL label */ 1341 st_Label, /* 7: C_ULABEL user label */ 1342 st_Member, /* 8: C_MOS member of struct */ 1343 st_Param, /* 9: C_ARG argument */ 1344 st_Block, /* 10: C_STRTAG struct tag */ 1345 st_Member, /* 11: C_MOU member of union */ 1346 st_Block, /* 12: C_UNTAG union tag */ 1347 st_Typedef, /* 13: C_TPDEF typedef */ 1348 st_Static, /* 14: C_USTATIC ??? */ 1349 st_Block, /* 15: C_ENTAG enum tag */ 1350 st_Member, /* 16: C_MOE member of enum */ 1351 st_Param, /* 17: C_REGPARM register parameter */ 1352 st_Member, /* 18; C_FIELD bitfield */ 1353 st_Nil, /* 19 */ 1354 st_Nil, /* 20 */ 1355 st_Nil, /* 21 */ 1356 st_Nil, /* 22 */ 1357 st_Nil, /* 23 */ 1358 st_Nil, /* 24 */ 1359 st_Nil, /* 25 */ 1360 st_Nil, /* 26 */ 1361 st_Nil, /* 27 */ 1362 st_Nil, /* 28 */ 1363 st_Nil, /* 29 */ 1364 st_Nil, /* 30 */ 1365 st_Nil, /* 31 */ 1366 st_Nil, /* 32 */ 1367 st_Nil, /* 33 */ 1368 st_Nil, /* 34 */ 1369 st_Nil, /* 35 */ 1370 st_Nil, /* 36 */ 1371 st_Nil, /* 37 */ 1372 st_Nil, /* 38 */ 1373 st_Nil, /* 39 */ 1374 st_Nil, /* 40 */ 1375 st_Nil, /* 41 */ 1376 st_Nil, /* 42 */ 1377 st_Nil, /* 43 */ 1378 st_Nil, /* 44 */ 1379 st_Nil, /* 45 */ 1380 st_Nil, /* 46 */ 1381 st_Nil, /* 47 */ 1382 st_Nil, /* 48 */ 1383 st_Nil, /* 49 */ 1384 st_Nil, /* 50 */ 1385 st_Nil, /* 51 */ 1386 st_Nil, /* 52 */ 1387 st_Nil, /* 53 */ 1388 st_Nil, /* 54 */ 1389 st_Nil, /* 55 */ 1390 st_Nil, /* 56 */ 1391 st_Nil, /* 57 */ 1392 st_Nil, /* 58 */ 1393 st_Nil, /* 59 */ 1394 st_Nil, /* 60 */ 1395 st_Nil, /* 61 */ 1396 st_Nil, /* 62 */ 1397 st_Nil, /* 63 */ 1398 st_Nil, /* 64 */ 1399 st_Nil, /* 65 */ 1400 st_Nil, /* 66 */ 1401 st_Nil, /* 67 */ 1402 st_Nil, /* 68 */ 1403 st_Nil, /* 69 */ 1404 st_Nil, /* 70 */ 1405 st_Nil, /* 71 */ 1406 st_Nil, /* 72 */ 1407 st_Nil, /* 73 */ 1408 st_Nil, /* 74 */ 1409 st_Nil, /* 75 */ 1410 st_Nil, /* 76 */ 1411 st_Nil, /* 77 */ 1412 st_Nil, /* 78 */ 1413 st_Nil, /* 79 */ 1414 st_Nil, /* 80 */ 1415 st_Nil, /* 81 */ 1416 st_Nil, /* 82 */ 1417 st_Nil, /* 83 */ 1418 st_Nil, /* 84 */ 1419 st_Nil, /* 85 */ 1420 st_Nil, /* 86 */ 1421 st_Nil, /* 87 */ 1422 st_Nil, /* 88 */ 1423 st_Nil, /* 89 */ 1424 st_Nil, /* 90 */ 1425 st_Nil, /* 91 */ 1426 st_Nil, /* 92 */ 1427 st_Nil, /* 93 */ 1428 st_Nil, /* 94 */ 1429 st_Nil, /* 95 */ 1430 st_Nil, /* 96 */ 1431 st_Nil, /* 97 */ 1432 st_Nil, /* 98 */ 1433 st_Nil, /* 99 */ 1434 st_Block, /* 100: C_BLOCK block start/end */ 1435 st_Proc, /* 101: C_FCN function start/end */ 1436 st_End, /* 102: C_EOS end of struct/union/enum */ 1437 st_File, /* 103: C_FILE file start */ 1438 st_Nil, /* 104: C_LINE line number */ 1439 st_Nil, /* 105: C_ALIAS combined type info */ 1440 st_Nil, /* 106: C_HIDDEN ??? */ 1441}; 1442 1443/* Map COFF derived types to ECOFF type qualifiers. */ 1444static const tq_t map_coff_derived_type[ (int) DT_MAX ] = { 1445 tq_Nil, /* 0: DT_NON no more qualifiers */ 1446 tq_Ptr, /* 1: DT_PTR pointer */ 1447 tq_Proc, /* 2: DT_FCN function */ 1448 tq_Array, /* 3: DT_ARY array */ 1449}; 1450 1451 1452/* Keep track of different sized allocation requests. */ 1453static alloc_info_t alloc_counts[ (int) alloc_type_last ]; 1454 1455 1456/* Pointers and such to the original symbol table that is read in. */ 1457static struct filehdr orig_file_header; /* global object file header */ 1458 1459static HDRR orig_sym_hdr; /* symbolic header on input */ 1460static char *orig_linenum; /* line numbers */ 1461static DNR *orig_dense; /* dense numbers */ 1462static PDR *orig_procs; /* procedures */ 1463static SYMR *orig_local_syms; /* local symbols */ 1464static OPTR *orig_opt_syms; /* optimization symbols */ 1465static AUXU *orig_aux_syms; /* auxiliary symbols */ 1466static char *orig_local_strs; /* local strings */ 1467static char *orig_ext_strs; /* external strings */ 1468static FDR *orig_files; /* file descriptors */ 1469static symint_t *orig_rfds; /* relative file desc's */ 1470static EXTR *orig_ext_syms; /* external symbols */ 1471 1472/* Macros to convert an index into a given object within the original 1473 symbol table. */ 1474#define CHECK(num,max,str) \ 1475 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0) 1476 1477#define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum) 1478#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense) 1479#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs) 1480#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files) 1481#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms) 1482#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs) 1483#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms) 1484#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs) 1485#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms) 1486#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms) 1487#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds) 1488 1489/* Various other statics. */ 1490static HDRR symbolic_header; /* symbolic header */ 1491static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ 1492static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */ 1493static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */ 1494static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */ 1495static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/ 1496static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */ 1497static unsigned long file_offset = 0; /* current file offset */ 1498static unsigned long max_file_offset = 0; /* maximum file offset */ 1499static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */ 1500static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */ 1501static char *progname = (char *) 0; /* program name for errors */ 1502static const char *input_name = "stdin"; /* name of input file */ 1503static char *object_name = (char *) 0; /* tmp. name of object file */ 1504static char *obj_in_name = (char *) 0; /* name of input object file */ 1505static char *cur_line_start = (char *) 0; /* current line read in */ 1506static char *cur_line_ptr = (char *) 0; /* ptr within current line */ 1507static unsigned cur_line_nbytes = 0; /* # bytes for current line */ 1508static unsigned cur_line_alloc = 0; /* # bytes total in buffer */ 1509static long line_number = 0; /* current input line number */ 1510static int debug = 0; /* trace functions */ 1511static int version = 0; /* print version # */ 1512static int verbose = 0; 1513static int had_errors = 0; /* != 0 if errors were found */ 1514static int rename_output = 0; /* != 0 if rename output file*/ 1515static int delete_input = 0; /* != 0 if delete input after done */ 1516static int stabs_seen = 0; /* != 0 if stabs have been seen */ 1517 1518 1519/* Pseudo symbol to use when putting stabs into the symbol table. */ 1520#ifndef STABS_SYMBOL 1521#define STABS_SYMBOL "@stabs" 1522#endif 1523 1524static const char stabs_symbol[] = STABS_SYMBOL; 1525 1526 1527/* Forward reference for functions. See the definition for more details. */ 1528 1529#ifndef STATIC 1530#define STATIC static 1531#endif 1532 1533STATIC int out_of_bounds (symint_t, symint_t, const char *, int); 1534STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *); 1535STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *, 1536 shash_t **); 1537STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t, 1538 symint_t, symint_t); 1539STATIC symint_t add_ext_symbol (EXTR *, int); 1540STATIC symint_t add_aux_sym_symint (symint_t); 1541STATIC symint_t add_aux_sym_rndx (int, symint_t); 1542STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **); 1543STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t); 1544STATIC void add_unknown_tag (tag_t *); 1545STATIC void add_procedure (const char *, const char *); 1546STATIC void initialize_init_file (void); 1547STATIC void add_file (const char *, const char *); 1548STATIC void add_bytes (varray_t *, char *, Size_t); 1549STATIC void add_varray_page (varray_t *); 1550STATIC void update_headers (void); 1551STATIC void write_varray (varray_t *, off_t, const char *); 1552STATIC void write_object (void); 1553STATIC const char *st_to_string (st_t); 1554STATIC const char *sc_to_string (sc_t); 1555STATIC char *read_line (void); 1556STATIC void parse_input (void); 1557STATIC void mark_stabs (const char *); 1558STATIC void parse_begin (const char *); 1559STATIC void parse_bend (const char *); 1560STATIC void parse_def (const char *); 1561STATIC void parse_end (const char *); 1562STATIC void parse_ent (const char *); 1563STATIC void parse_file (const char *); 1564STATIC void parse_stabs_common (const char *, const char *, const char *); 1565STATIC void parse_stabs (const char *); 1566STATIC void parse_stabn (const char *); 1567STATIC page_t *read_seek (Size_t, off_t, const char *); 1568STATIC void copy_object (void); 1569 1570STATIC void catch_signal (int) ATTRIBUTE_NORETURN; 1571STATIC page_t *allocate_page (void); 1572STATIC page_t *allocate_multiple_pages (Size_t); 1573STATIC void free_multiple_pages (page_t *, Size_t); 1574 1575#ifndef MALLOC_CHECK 1576STATIC page_t *allocate_cluster (Size_t); 1577#endif 1578 1579STATIC forward_t *allocate_forward (void); 1580STATIC scope_t *allocate_scope (void); 1581STATIC shash_t *allocate_shash (void); 1582STATIC tag_t *allocate_tag (void); 1583STATIC thash_t *allocate_thash (void); 1584STATIC thead_t *allocate_thead (void); 1585STATIC vlinks_t *allocate_vlinks (void); 1586 1587STATIC void free_forward (forward_t *); 1588STATIC void free_scope (scope_t *); 1589STATIC void free_tag (tag_t *); 1590STATIC void free_thead (thead_t *); 1591 1592extern char *optarg; 1593extern int optind; 1594extern int opterr; 1595 1596/* List of assembler pseudo ops and beginning sequences that need 1597 special actions. Someday, this should be a hash table, and such, 1598 but for now a linear list of names and calls to memcmp will 1599 do...... */ 1600 1601typedef struct _pseudo_ops { 1602 const char *const name; /* pseudo-op in ascii */ 1603 const int len; /* length of name to compare */ 1604 void (*const func) (const char *); /* function to handle line */ 1605} pseudo_ops_t; 1606 1607static const pseudo_ops_t pseudo_ops[] = { 1608 { "#.def", sizeof("#.def")-1, parse_def }, 1609 { "#.begin", sizeof("#.begin")-1, parse_begin }, 1610 { "#.bend", sizeof("#.bend")-1, parse_bend }, 1611 { ".end", sizeof(".end")-1, parse_end }, 1612 { ".ent", sizeof(".ent")-1, parse_ent }, 1613 { ".file", sizeof(".file")-1, parse_file }, 1614 { "#.stabs", sizeof("#.stabs")-1, parse_stabs }, 1615 { "#.stabn", sizeof("#.stabn")-1, parse_stabn }, 1616 { ".stabs", sizeof(".stabs")-1, parse_stabs }, 1617 { ".stabn", sizeof(".stabn")-1, parse_stabn }, 1618 { "#@stabs", sizeof("#@stabs")-1, mark_stabs }, 1619}; 1620 1621 1622/* Command line options for getopt_long. */ 1623 1624static const struct option options[] = 1625{ 1626 { "version", 0, 0, 'V' }, 1627 { "verbose", 0, 0, 'v' }, 1628 { 0, 0, 0, 0 } 1629}; 1630 1631/* Add a page to a varray object. */ 1632 1633STATIC void 1634add_varray_page (varray_t *vp) 1635{ 1636 vlinks_t *new_links = allocate_vlinks (); 1637 1638#ifdef MALLOC_CHECK 1639 if (vp->object_size > 1) 1640 new_links->datum = xcalloc (1, vp->object_size); 1641 else 1642#endif 1643 new_links->datum = allocate_page (); 1644 1645 alloc_counts[ (int) alloc_type_varray ].total_alloc++; 1646 alloc_counts[ (int) alloc_type_varray ].total_pages++; 1647 1648 new_links->start_index = vp->num_allocated; 1649 vp->objects_last_page = 0; 1650 1651 if (vp->first == (vlinks_t *) 0) /* first allocation? */ 1652 vp->first = vp->last = new_links; 1653 else 1654 { /* 2nd or greater allocation */ 1655 new_links->prev = vp->last; 1656 vp->last->next = new_links; 1657 vp->last = new_links; 1658 } 1659} 1660 1661 1662/* Compute hash code (from tree.c) */ 1663 1664#define HASHBITS 30 1665 1666STATIC shash_t * 1667hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl, 1668 symint_t *ret_hash_index) 1669{ 1670 unsigned long hi; 1671 Ptrdiff_t i; 1672 shash_t *ptr; 1673 int first_ch = *text; 1674 1675 hi = hash_len; 1676 for (i = 0; i < hash_len; i++) 1677 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff); 1678 1679 hi &= (1 << HASHBITS) - 1; 1680 hi %= SHASH_SIZE; 1681 1682 if (ret_hash_index != (symint_t *) 0) 1683 *ret_hash_index = hi; 1684 1685 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next) 1686 if ((symint_t) hash_len == ptr->len 1687 && first_ch == ptr->string[0] 1688 && memcmp (text, ptr->string, hash_len) == 0) 1689 break; 1690 1691 return ptr; 1692} 1693 1694 1695/* Add a string (and null pad) to one of the string tables. A 1696 consequence of hashing strings, is that we don't let strings cross 1697 page boundaries. The extra nulls will be ignored. VP is a string 1698 virtual array, HASH_TBL a pointer to the hash table, the string 1699 starts at START and the position one byte after the string is given 1700 with END_P1, the resulting hash pointer is returned in RET_HASH. */ 1701 1702STATIC symint_t 1703add_string (varray_t *vp, shash_t **hash_tbl, const char *start, 1704 const char *end_p1, shash_t **ret_hash) 1705{ 1706 Ptrdiff_t len = end_p1 - start; 1707 shash_t *hash_ptr; 1708 symint_t hi; 1709 1710 if (len >= (Ptrdiff_t) PAGE_USIZE) 1711 fatal ("string too big (%ld bytes)", (long) len); 1712 1713 hash_ptr = hash_string (start, len, hash_tbl, &hi); 1714 if (hash_ptr == (shash_t *) 0) 1715 { 1716 char *p; 1717 1718 if (vp->objects_last_page + len >= (long) PAGE_USIZE) 1719 { 1720 vp->num_allocated 1721 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; 1722 add_varray_page (vp); 1723 } 1724 1725 hash_ptr = allocate_shash (); 1726 hash_ptr->next = hash_tbl[hi]; 1727 hash_tbl[hi] = hash_ptr; 1728 1729 hash_ptr->len = len; 1730 hash_ptr->indx = vp->num_allocated; 1731 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ]; 1732 1733 vp->objects_last_page += len+1; 1734 vp->num_allocated += len+1; 1735 1736 while (len-- > 0) 1737 *p++ = *start++; 1738 1739 *p = '\0'; 1740 } 1741 1742 if (ret_hash != (shash_t **) 0) 1743 *ret_hash = hash_ptr; 1744 1745 return hash_ptr->indx; 1746} 1747 1748 1749/* Add a local symbol. The symbol string starts at STR_START and the 1750 first byte after it is makred by STR_END_P1. The symbol has type 1751 TYPE and storage class STORAGE and value VALUE. INDX is an index 1752 to local/aux. symbols. */ 1753 1754STATIC symint_t 1755add_local_symbol (const char *str_start, const char *str_end_p1, st_t type, 1756 sc_t storage, symint_t value, symint_t indx) 1757{ 1758 symint_t ret; 1759 SYMR *psym; 1760 scope_t *pscope; 1761 thead_t *ptag_head; 1762 tag_t *ptag; 1763 tag_t *ptag_next; 1764 varray_t *vp = &cur_file_ptr->symbols; 1765 int scope_delta = 0; 1766 shash_t *hash_ptr = (shash_t *) 0; 1767 1768 if (vp->objects_last_page == vp->objects_per_page) 1769 add_varray_page (vp); 1770 1771 psym = &vp->last->datum->sym[ vp->objects_last_page++ ]; 1772 1773 psym->value = value; 1774 psym->st = (unsigned) type; 1775 psym->sc = (unsigned) storage; 1776 psym->index = indx; 1777 psym->iss = (str_start == (const char *) 0) 1778 ? 0 1779 : add_string (&cur_file_ptr->strings, 1780 &cur_file_ptr->shash_head[0], 1781 str_start, 1782 str_end_p1, 1783 &hash_ptr); 1784 1785 ret = vp->num_allocated++; 1786 1787 if (MIPS_IS_STAB (psym)) 1788 return ret; 1789 1790 /* Save the symbol within the hash table if this is a static 1791 item, and it has a name. */ 1792 if (hash_ptr != (shash_t *) 0 1793 && (type == st_Global || type == st_Static || type == st_Label 1794 || type == st_Proc || type == st_StaticProc)) 1795 hash_ptr->sym_ptr = psym; 1796 1797 /* push or pop a scope if appropriate. */ 1798 switch (type) 1799 { 1800 default: 1801 break; 1802 1803 case st_File: /* beginning of file */ 1804 case st_Proc: /* procedure */ 1805 case st_StaticProc: /* static procedure */ 1806 case st_Block: /* begin scope */ 1807 pscope = allocate_scope (); 1808 pscope->prev = cur_file_ptr->cur_scope; 1809 pscope->lsym = psym; 1810 pscope->lnumber = ret; 1811 pscope->type = type; 1812 cur_file_ptr->cur_scope = pscope; 1813 1814 if (type != st_File) 1815 scope_delta = 1; 1816 1817 /* For every block type except file, struct, union, or 1818 enumeration blocks, push a level on the tag stack. We omit 1819 file types, so that tags can span file boundaries. */ 1820 if (type != st_File && storage != sc_Info) 1821 { 1822 ptag_head = allocate_thead (); 1823 ptag_head->first_tag = 0; 1824 ptag_head->prev = cur_tag_head; 1825 cur_tag_head = ptag_head; 1826 } 1827 break; 1828 1829 case st_End: 1830 pscope = cur_file_ptr->cur_scope; 1831 if (pscope == (scope_t *) 0) 1832 error ("internal error, too many st_End's"); 1833 1834 else 1835 { 1836 st_t begin_type = (st_t) pscope->lsym->st; 1837 1838 if (begin_type != st_File) 1839 scope_delta = -1; 1840 1841 /* Except for file, structure, union, or enumeration end 1842 blocks remove all tags created within this scope. */ 1843 if (begin_type != st_File && storage != sc_Info) 1844 { 1845 ptag_head = cur_tag_head; 1846 cur_tag_head = ptag_head->prev; 1847 1848 for (ptag = ptag_head->first_tag; 1849 ptag != (tag_t *) 0; 1850 ptag = ptag_next) 1851 { 1852 if (ptag->forward_ref != (forward_t *) 0) 1853 add_unknown_tag (ptag); 1854 1855 ptag_next = ptag->same_block; 1856 ptag->hash_ptr->tag_ptr = ptag->same_name; 1857 free_tag (ptag); 1858 } 1859 1860 free_thead (ptag_head); 1861 } 1862 1863 cur_file_ptr->cur_scope = pscope->prev; 1864 psym->index = pscope->lnumber; /* blk end gets begin sym # */ 1865 1866 if (storage != sc_Info) 1867 psym->iss = pscope->lsym->iss; /* blk end gets same name */ 1868 1869 if (begin_type == st_File || begin_type == st_Block) 1870 pscope->lsym->index = ret+1; /* block begin gets next sym # */ 1871 1872 /* Functions push two or more aux words as follows: 1873 1st word: index+1 of the end symbol 1874 2nd word: type of the function (plus any aux words needed). 1875 Also, tie the external pointer back to the function begin symbol. */ 1876 else 1877 { 1878 symint_t type; 1879 pscope->lsym->index = add_aux_sym_symint (ret+1); 1880 type = add_aux_sym_tir (&last_func_type_info, 1881 hash_no, 1882 &cur_file_ptr->thash_head[0]); 1883 if (last_func_eptr) 1884 { 1885 last_func_eptr->ifd = cur_file_ptr->file_index; 1886 1887 /* The index for an external st_Proc symbol is the index 1888 of the st_Proc symbol in the local symbol table. */ 1889 last_func_eptr->asym.index = psym->index; 1890 } 1891 } 1892 1893 free_scope (pscope); 1894 } 1895 } 1896 1897 cur_file_ptr->nested_scopes += scope_delta; 1898 1899 if (debug && type != st_File 1900 && (debug > 2 || type == st_Block || type == st_End 1901 || type == st_Proc || type == st_StaticProc)) 1902 { 1903 const char *sc_str = sc_to_string (storage); 1904 const char *st_str = st_to_string (type); 1905 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); 1906 1907 fprintf (stderr, 1908 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", 1909 value, depth, sc_str); 1910 1911 if (str_start && str_end_p1 - str_start > 0) 1912 fprintf (stderr, " st= %-11s name= %.*s\n", 1913 st_str, (int) (str_end_p1 - str_start), str_start); 1914 else 1915 { 1916 Size_t len = strlen (st_str); 1917 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str); 1918 } 1919 } 1920 1921 return ret; 1922} 1923 1924 1925/* Add an external symbol with symbol pointer ESYM and file index 1926 IFD. */ 1927 1928STATIC symint_t 1929add_ext_symbol (EXTR *esym, int ifd) 1930{ 1931 const char *str_start; /* first byte in string */ 1932 const char *str_end_p1; /* first byte after string */ 1933 EXTR *psym; 1934 varray_t *vp = &ext_symbols; 1935 shash_t *hash_ptr = (shash_t *) 0; 1936 1937 str_start = ORIG_ESTRS (esym->asym.iss); 1938 str_end_p1 = str_start + strlen (str_start); 1939 1940 if (debug > 1) 1941 { 1942 long value = esym->asym.value; 1943 const char *sc_str = sc_to_string (esym->asym.sc); 1944 const char *st_str = st_to_string (esym->asym.st); 1945 1946 fprintf (stderr, 1947 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s", 1948 value, ifd, sc_str); 1949 1950 if (str_start && str_end_p1 - str_start > 0) 1951 fprintf (stderr, " st= %-11s name= %.*s\n", 1952 st_str, (int) (str_end_p1 - str_start), str_start); 1953 else 1954 fprintf (stderr, " st= %s\n", st_str); 1955 } 1956 1957 if (vp->objects_last_page == vp->objects_per_page) 1958 add_varray_page (vp); 1959 1960 psym = &vp->last->datum->esym[ vp->objects_last_page++ ]; 1961 1962 *psym = *esym; 1963 psym->ifd = ifd; 1964 psym->asym.index = indexNil; 1965 psym->asym.iss = (str_start == (const char *) 0) 1966 ? 0 1967 : add_string (&ext_strings, 1968 &ext_str_hash[0], 1969 str_start, 1970 str_end_p1, 1971 &hash_ptr); 1972 1973 hash_ptr->esym_ptr = psym; 1974 return vp->num_allocated++; 1975} 1976 1977 1978/* Add an auxiliary symbol (passing a symint). */ 1979 1980STATIC symint_t 1981add_aux_sym_symint (symint_t aux_word) 1982{ 1983 AUXU *aux_ptr; 1984 efdr_t *file_ptr = cur_file_ptr; 1985 varray_t *vp = &file_ptr->aux_syms; 1986 1987 if (vp->objects_last_page == vp->objects_per_page) 1988 add_varray_page (vp); 1989 1990 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 1991 aux_ptr->isym = aux_word; 1992 1993 return vp->num_allocated++; 1994} 1995 1996 1997/* Add an auxiliary symbol (passing a file/symbol index combo). */ 1998 1999STATIC symint_t 2000add_aux_sym_rndx (int file_index, symint_t sym_index) 2001{ 2002 AUXU *aux_ptr; 2003 efdr_t *file_ptr = cur_file_ptr; 2004 varray_t *vp = &file_ptr->aux_syms; 2005 2006 if (vp->objects_last_page == vp->objects_per_page) 2007 add_varray_page (vp); 2008 2009 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2010 aux_ptr->rndx.rfd = file_index; 2011 aux_ptr->rndx.index = sym_index; 2012 2013 return vp->num_allocated++; 2014} 2015 2016 2017/* Add an auxiliary symbol (passing the basic type and possibly 2018 type qualifiers). */ 2019 2020STATIC symint_t 2021add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl) 2022{ 2023 AUXU *aux_ptr; 2024 efdr_t *file_ptr = cur_file_ptr; 2025 varray_t *vp = &file_ptr->aux_syms; 2026 static AUXU init_aux; 2027 symint_t ret; 2028 int i; 2029 AUXU aux; 2030 2031 aux = init_aux; 2032 aux.ti.bt = (int) t->basic_type; 2033 aux.ti.continued = 0; 2034 aux.ti.fBitfield = t->bitfield; 2035 2036 aux.ti.tq0 = (int) t->type_qualifiers[0]; 2037 aux.ti.tq1 = (int) t->type_qualifiers[1]; 2038 aux.ti.tq2 = (int) t->type_qualifiers[2]; 2039 aux.ti.tq3 = (int) t->type_qualifiers[3]; 2040 aux.ti.tq4 = (int) t->type_qualifiers[4]; 2041 aux.ti.tq5 = (int) t->type_qualifiers[5]; 2042 2043 2044 /* For anything that adds additional information, we must not hash, 2045 so check here, and reset our state. */ 2046 2047 if (state != hash_no 2048 && (t->type_qualifiers[0] == tq_Array 2049 || t->type_qualifiers[1] == tq_Array 2050 || t->type_qualifiers[2] == tq_Array 2051 || t->type_qualifiers[3] == tq_Array 2052 || t->type_qualifiers[4] == tq_Array 2053 || t->type_qualifiers[5] == tq_Array 2054 || t->basic_type == bt_Struct 2055 || t->basic_type == bt_Union 2056 || t->basic_type == bt_Enum 2057 || t->bitfield 2058 || t->num_dims > 0)) 2059 state = hash_no; 2060 2061 /* See if we can hash this type, and save some space, but some types 2062 can't be hashed (because they contain arrays or continuations), 2063 and others can be put into the hash list, but cannot use existing 2064 types because other aux entries precede this one. */ 2065 2066 if (state != hash_no) 2067 { 2068 thash_t *hash_ptr; 2069 symint_t hi; 2070 2071 hi = aux.isym & ((1 << HASHBITS) - 1); 2072 hi %= THASH_SIZE; 2073 2074 for (hash_ptr = hash_tbl[hi]; 2075 hash_ptr != (thash_t *) 0; 2076 hash_ptr = hash_ptr->next) 2077 { 2078 if (aux.isym == hash_ptr->type.isym) 2079 break; 2080 } 2081 2082 if (hash_ptr != (thash_t *) 0 && state == hash_yes) 2083 return hash_ptr->indx; 2084 2085 if (hash_ptr == (thash_t *) 0) 2086 { 2087 hash_ptr = allocate_thash (); 2088 hash_ptr->next = hash_tbl[hi]; 2089 hash_ptr->type = aux; 2090 hash_ptr->indx = vp->num_allocated; 2091 hash_tbl[hi] = hash_ptr; 2092 } 2093 } 2094 2095 /* Everything is set up, add the aux symbol. */ 2096 if (vp->objects_last_page == vp->objects_per_page) 2097 add_varray_page (vp); 2098 2099 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ]; 2100 *aux_ptr = aux; 2101 2102 ret = vp->num_allocated++; 2103 2104 /* Add bitfield length if it exists. 2105 2106 NOTE: Mips documentation claims bitfield goes at the end of the 2107 AUX record, but the DECstation compiler emits it here. 2108 (This would only make a difference for enum bitfields.) 2109 2110 Also note: We use the last size given since gcc may emit 2 2111 for an enum bitfield. */ 2112 2113 if (t->bitfield) 2114 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]); 2115 2116 2117 /* Add tag information if needed. Structure, union, and enum 2118 references add 2 aux symbols: a [file index, symbol index] 2119 pointer to the structure type, and the current file index. */ 2120 2121 if (t->basic_type == bt_Struct 2122 || t->basic_type == bt_Union 2123 || t->basic_type == bt_Enum) 2124 { 2125 symint_t file_index = t->tag_ptr->ifd; 2126 symint_t sym_index = t->tag_ptr->indx; 2127 2128 if (t->unknown_tag) 2129 { 2130 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2131 (void) add_aux_sym_symint ((symint_t)-1); 2132 } 2133 else if (sym_index != indexNil) 2134 { 2135 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2136 (void) add_aux_sym_symint (file_index); 2137 } 2138 else 2139 { 2140 forward_t *forward_ref = allocate_forward (); 2141 2142 forward_ref->type_ptr = aux_ptr; 2143 forward_ref->next = t->tag_ptr->forward_ref; 2144 t->tag_ptr->forward_ref = forward_ref; 2145 2146 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index); 2147 forward_ref->index_ptr 2148 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2149 2150 (void) add_aux_sym_symint (file_index); 2151 forward_ref->ifd_ptr 2152 = &vp->last->datum->aux[ vp->objects_last_page - 1]; 2153 } 2154 } 2155 2156 /* Add information about array bounds if they exist. */ 2157 for (i = 0; i < t->num_dims; i++) 2158 { 2159 (void) add_aux_sym_rndx (ST_RFDESCAPE, 2160 cur_file_ptr->int_type); 2161 2162 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ 2163 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ 2164 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ 2165 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ 2166 ? 0 2167 : (t->sizes[i] * 8) / t->dimensions[i]); 2168 }; 2169 2170 /* NOTE: Mips documentation claims that the bitfield width goes here. 2171 But it needs to be emitted earlier. */ 2172 2173 return ret; 2174} 2175 2176 2177/* Add a tag to the tag table (unless it already exists). */ 2178 2179STATIC tag_t * 2180get_tag (const char *tag_start, /* 1st byte of tag name */ 2181 const char *tag_end_p1, /* 1st byte after tag name */ 2182 symint_t indx, /* index of tag start block */ 2183 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */ 2184 2185{ 2186 shash_t *hash_ptr; 2187 tag_t *tag_ptr; 2188 hash_ptr = hash_string (tag_start, 2189 tag_end_p1 - tag_start, 2190 &tag_hash[0], 2191 (symint_t *) 0); 2192 2193 if (hash_ptr != (shash_t *) 0 2194 && hash_ptr->tag_ptr != (tag_t *) 0) 2195 { 2196 tag_ptr = hash_ptr->tag_ptr; 2197 if (indx != indexNil) 2198 { 2199 tag_ptr->basic_type = basic_type; 2200 tag_ptr->ifd = cur_file_ptr->file_index; 2201 tag_ptr->indx = indx; 2202 } 2203 return tag_ptr; 2204 } 2205 2206 (void) add_string (&tag_strings, 2207 &tag_hash[0], 2208 tag_start, 2209 tag_end_p1, 2210 &hash_ptr); 2211 2212 tag_ptr = allocate_tag (); 2213 tag_ptr->forward_ref = (forward_t *) 0; 2214 tag_ptr->hash_ptr = hash_ptr; 2215 tag_ptr->same_name = hash_ptr->tag_ptr; 2216 tag_ptr->basic_type = basic_type; 2217 tag_ptr->indx = indx; 2218 tag_ptr->ifd = (indx == indexNil 2219 ? (symint_t) -1 : cur_file_ptr->file_index); 2220 tag_ptr->same_block = cur_tag_head->first_tag; 2221 2222 cur_tag_head->first_tag = tag_ptr; 2223 hash_ptr->tag_ptr = tag_ptr; 2224 2225 return tag_ptr; 2226} 2227 2228 2229/* Add an unknown {struct, union, enum} tag. */ 2230 2231STATIC void 2232add_unknown_tag (tag_t *ptag) 2233{ 2234 shash_t *hash_ptr = ptag->hash_ptr; 2235 char *name_start = hash_ptr->string; 2236 char *name_end_p1 = name_start + hash_ptr->len; 2237 forward_t *f_next = ptag->forward_ref; 2238 forward_t *f_cur; 2239 int sym_index; 2240 int file_index = cur_file_ptr->file_index; 2241 2242 if (debug > 1) 2243 { 2244 const char *agg_type = "{unknown aggregate type}"; 2245 switch (ptag->basic_type) 2246 { 2247 case bt_Struct: agg_type = "struct"; break; 2248 case bt_Union: agg_type = "union"; break; 2249 case bt_Enum: agg_type = "enum"; break; 2250 default: break; 2251 } 2252 2253 fprintf (stderr, "unknown %s %.*s found\n", 2254 agg_type, (int) hash_ptr->len, name_start); 2255 } 2256 2257 sym_index = add_local_symbol (name_start, 2258 name_end_p1, 2259 st_Block, 2260 sc_Info, 2261 (symint_t) 0, 2262 (symint_t) 0); 2263 2264 (void) add_local_symbol (name_start, 2265 name_end_p1, 2266 st_End, 2267 sc_Info, 2268 (symint_t) 0, 2269 (symint_t) 0); 2270 2271 while (f_next != (forward_t *) 0) 2272 { 2273 f_cur = f_next; 2274 f_next = f_next->next; 2275 2276 f_cur->ifd_ptr->isym = file_index; 2277 f_cur->index_ptr->rndx.index = sym_index; 2278 2279 free_forward (f_cur); 2280 } 2281 2282 return; 2283} 2284 2285 2286/* Add a procedure to the current file's list of procedures, and record 2287 this is the current procedure. If the assembler created a PDR for 2288 this procedure, use that to initialize the current PDR. */ 2289 2290STATIC void 2291add_procedure (const char *func_start, /* 1st byte of func name */ 2292 const char *func_end_p1) /* 1st byte after func name */ 2293{ 2294 PDR *new_proc_ptr; 2295 efdr_t *file_ptr = cur_file_ptr; 2296 varray_t *vp = &file_ptr->procs; 2297 symint_t value = 0; 2298 st_t proc_type = st_Proc; 2299 shash_t *shash_ptr = hash_string (func_start, 2300 func_end_p1 - func_start, 2301 &orig_str_hash[0], 2302 (symint_t *) 0); 2303 2304 if (debug) 2305 fputc ('\n', stderr); 2306 2307 if (vp->objects_last_page == vp->objects_per_page) 2308 add_varray_page (vp); 2309 2310 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ]; 2311 2312 vp->num_allocated++; 2313 2314 2315 /* Did the assembler create this procedure? If so, get the PDR information. */ 2316 cur_oproc_ptr = (PDR *) 0; 2317 if (shash_ptr != (shash_t *) 0) 2318 { 2319 PDR *old_proc_ptr = shash_ptr->proc_ptr; 2320 SYMR *sym_ptr = shash_ptr->sym_ptr; 2321 2322 if (old_proc_ptr != (PDR *) 0 2323 && sym_ptr != (SYMR *) 0 2324 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc)) 2325 { 2326 cur_oproc_begin = sym_ptr; 2327 cur_oproc_end = shash_ptr->end_ptr; 2328 value = sym_ptr->value; 2329 2330 cur_oproc_ptr = old_proc_ptr; 2331 proc_type = (st_t) sym_ptr->st; 2332 *new_proc_ptr = *old_proc_ptr; /* initialize */ 2333 } 2334 } 2335 2336 if (cur_oproc_ptr == (PDR *) 0) 2337 error ("did not find a PDR block for %.*s", 2338 (int) (func_end_p1 - func_start), func_start); 2339 2340 /* Determine the start of symbols. */ 2341 new_proc_ptr->isym = file_ptr->symbols.num_allocated; 2342 2343 /* Push the start of the function. */ 2344 (void) add_local_symbol (func_start, func_end_p1, 2345 proc_type, sc_Text, 2346 value, 2347 (symint_t) 0); 2348} 2349 2350 2351/* Initialize the init_file structure. */ 2352 2353STATIC void 2354initialize_init_file (void) 2355{ 2356 memset (&init_file, 0, sizeof (init_file)); 2357 2358 init_file.fdr.lang = langC; 2359 init_file.fdr.fMerge = 1; 2360 init_file.fdr.glevel = GLEVEL_2; 2361 2362#ifdef HOST_WORDS_BIG_ENDIAN 2363 init_file.fdr.fBigendian = 1; 2364#endif 2365 2366 INITIALIZE_VARRAY (&init_file.strings, char); 2367 INITIALIZE_VARRAY (&init_file.symbols, SYMR); 2368 INITIALIZE_VARRAY (&init_file.procs, PDR); 2369 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU); 2370 2371 init_file_initialized = 1; 2372} 2373 2374/* Add a new filename, and set up all of the file relative 2375 virtual arrays (strings, symbols, aux syms, etc.). Record 2376 where the current file structure lives. */ 2377 2378STATIC void 2379add_file (const char *file_start, /* first byte in string */ 2380 const char *file_end_p1) /* first byte after string */ 2381{ 2382 static char zero_bytes[2] = { '\0', '\0' }; 2383 2384 Ptrdiff_t len = file_end_p1 - file_start; 2385 int first_ch = *file_start; 2386 efdr_t *file_ptr; 2387 2388 if (debug) 2389 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start); 2390 2391 /* See if the file has already been created. */ 2392 for (file_ptr = first_file; 2393 file_ptr != (efdr_t *) 0; 2394 file_ptr = file_ptr->next_file) 2395 { 2396 if (first_ch == file_ptr->name[0] 2397 && file_ptr->name[len] == '\0' 2398 && memcmp (file_start, file_ptr->name, len) == 0) 2399 { 2400 cur_file_ptr = file_ptr; 2401 break; 2402 } 2403 } 2404 2405 /* If this is a new file, create it. */ 2406 if (file_ptr == (efdr_t *) 0) 2407 { 2408 if (file_desc.objects_last_page == file_desc.objects_per_page) 2409 add_varray_page (&file_desc); 2410 2411 if (! init_file_initialized) 2412 initialize_init_file (); 2413 2414 file_ptr = cur_file_ptr 2415 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ]; 2416 *file_ptr = init_file; 2417 2418 file_ptr->file_index = file_desc.num_allocated++; 2419 2420 /* Allocate the string hash table. */ 2421 file_ptr->shash_head = (shash_t **) allocate_page (); 2422 2423 /* Make sure 0 byte in string table is null */ 2424 add_string (&file_ptr->strings, 2425 &file_ptr->shash_head[0], 2426 &zero_bytes[0], 2427 &zero_bytes[0], 2428 (shash_t **) 0); 2429 2430 if (file_end_p1 - file_start > (long) PAGE_USIZE-2) 2431 fatal ("filename goes over one page boundary"); 2432 2433 /* Push the start of the filename. We assume that the filename 2434 will be stored at string offset 1. */ 2435 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text, 2436 (symint_t) 0, (symint_t) 0); 2437 file_ptr->fdr.rss = 1; 2438 file_ptr->name = &file_ptr->strings.last->datum->byte[1]; 2439 file_ptr->name_len = file_end_p1 - file_start; 2440 2441 /* Update the linked list of file descriptors. */ 2442 *last_file_ptr = file_ptr; 2443 last_file_ptr = &file_ptr->next_file; 2444 2445 /* Add void & int types to the file (void should be first to catch 2446 errant 0's within the index fields). */ 2447 file_ptr->void_type = add_aux_sym_tir (&void_type_info, 2448 hash_yes, 2449 &cur_file_ptr->thash_head[0]); 2450 2451 file_ptr->int_type = add_aux_sym_tir (&int_type_info, 2452 hash_yes, 2453 &cur_file_ptr->thash_head[0]); 2454 } 2455} 2456 2457 2458/* Add a stream of random bytes to a varray. */ 2459 2460STATIC void 2461add_bytes (varray_t *vp, /* virtual array to add too */ 2462 char *input_ptr, /* start of the bytes */ 2463 Size_t nitems) /* # items to move */ 2464{ 2465 Size_t move_items; 2466 Size_t move_bytes; 2467 char *ptr; 2468 2469 while (nitems > 0) 2470 { 2471 if (vp->objects_last_page >= vp->objects_per_page) 2472 add_varray_page (vp); 2473 2474 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ]; 2475 move_items = vp->objects_per_page - vp->objects_last_page; 2476 if (move_items > nitems) 2477 move_items = nitems; 2478 2479 move_bytes = move_items * vp->object_size; 2480 nitems -= move_items; 2481 2482 if (move_bytes >= 32) 2483 { 2484 (void) memcpy (ptr, input_ptr, move_bytes); 2485 input_ptr += move_bytes; 2486 } 2487 else 2488 { 2489 while (move_bytes-- > 0) 2490 *ptr++ = *input_ptr++; 2491 } 2492 } 2493} 2494 2495 2496/* Convert storage class to string. */ 2497 2498STATIC const char * 2499sc_to_string (sc_t storage_class) 2500{ 2501 switch (storage_class) 2502 { 2503 case sc_Nil: return "Nil,"; 2504 case sc_Text: return "Text,"; 2505 case sc_Data: return "Data,"; 2506 case sc_Bss: return "Bss,"; 2507 case sc_Register: return "Register,"; 2508 case sc_Abs: return "Abs,"; 2509 case sc_Undefined: return "Undefined,"; 2510 case sc_CdbLocal: return "CdbLocal,"; 2511 case sc_Bits: return "Bits,"; 2512 case sc_CdbSystem: return "CdbSystem,"; 2513 case sc_RegImage: return "RegImage,"; 2514 case sc_Info: return "Info,"; 2515 case sc_UserStruct: return "UserStruct,"; 2516 case sc_SData: return "SData,"; 2517 case sc_SBss: return "SBss,"; 2518 case sc_RData: return "RData,"; 2519 case sc_Var: return "Var,"; 2520 case sc_Common: return "Common,"; 2521 case sc_SCommon: return "SCommon,"; 2522 case sc_VarRegister: return "VarRegister,"; 2523 case sc_Variant: return "Variant,"; 2524 case sc_SUndefined: return "SUndefined,"; 2525 case sc_Init: return "Init,"; 2526 case sc_Max: return "Max,"; 2527 } 2528 2529 return "???,"; 2530} 2531 2532 2533/* Convert symbol type to string. */ 2534 2535STATIC const char * 2536st_to_string (st_t symbol_type) 2537{ 2538 switch (symbol_type) 2539 { 2540 case st_Nil: return "Nil,"; 2541 case st_Global: return "Global,"; 2542 case st_Static: return "Static,"; 2543 case st_Param: return "Param,"; 2544 case st_Local: return "Local,"; 2545 case st_Label: return "Label,"; 2546 case st_Proc: return "Proc,"; 2547 case st_Block: return "Block,"; 2548 case st_End: return "End,"; 2549 case st_Member: return "Member,"; 2550 case st_Typedef: return "Typedef,"; 2551 case st_File: return "File,"; 2552 case st_RegReloc: return "RegReloc,"; 2553 case st_Forward: return "Forward,"; 2554 case st_StaticProc: return "StaticProc,"; 2555 case st_Constant: return "Constant,"; 2556 case st_Str: return "String,"; 2557 case st_Number: return "Number,"; 2558 case st_Expr: return "Expr,"; 2559 case st_Type: return "Type,"; 2560 case st_Max: return "Max,"; 2561 } 2562 2563 return "???,"; 2564} 2565 2566 2567/* Read a line from standard input, and return the start of the buffer 2568 (which is grows if the line is too big). We split lines at the 2569 semi-colon, and return each logical line independently. */ 2570 2571STATIC char * 2572read_line (void) 2573{ 2574 static int line_split_p = 0; 2575 int string_p = 0; 2576 int comment_p = 0; 2577 int ch; 2578 char *ptr; 2579 2580 if (cur_line_start == (char *) 0) 2581 { /* allocate initial page */ 2582 cur_line_start = (char *) allocate_page (); 2583 cur_line_alloc = PAGE_SIZE; 2584 } 2585 2586 if (!line_split_p) 2587 line_number++; 2588 2589 line_split_p = 0; 2590 cur_line_nbytes = 0; 2591 2592 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch) 2593 { 2594 if (++cur_line_nbytes >= cur_line_alloc-1) 2595 { 2596 int num_pages = cur_line_alloc / PAGE_SIZE; 2597 char *old_buffer = cur_line_start; 2598 2599 cur_line_alloc += PAGE_SIZE; 2600 cur_line_start = (char *) allocate_multiple_pages (num_pages+1); 2601 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE); 2602 2603 ptr = cur_line_start + cur_line_nbytes - 1; 2604 } 2605 2606 if (ch == '\n') 2607 { 2608 *ptr++ = '\n'; 2609 *ptr = '\0'; 2610 cur_line_ptr = cur_line_start; 2611 return cur_line_ptr; 2612 } 2613 2614 else if (ch == '\0') 2615 error ("null character found in input"); 2616 2617 else if (!comment_p) 2618 { 2619 if (ch == '"') 2620 string_p = !string_p; 2621 2622 else if (ch == '#') 2623 comment_p++; 2624 2625 else if (ch == ';' && !string_p) 2626 { 2627 line_split_p = 1; 2628 *ptr++ = '\n'; 2629 *ptr = '\0'; 2630 cur_line_ptr = cur_line_start; 2631 return cur_line_ptr; 2632 } 2633 } 2634 } 2635 2636 if (ferror (stdin)) 2637 pfatal_with_name (input_name); 2638 2639 cur_line_ptr = (char *) 0; 2640 return (char *) 0; 2641} 2642 2643 2644/* Parse #.begin directives which have a label as the first argument 2645 which gives the location of the start of the block. */ 2646 2647STATIC void 2648parse_begin (const char *start) 2649{ 2650 const char *end_p1; /* end of label */ 2651 int ch; 2652 shash_t *hash_ptr; /* hash pointer to lookup label */ 2653 2654 if (cur_file_ptr == (efdr_t *) 0) 2655 { 2656 error ("#.begin directive without a preceding .file directive"); 2657 return; 2658 } 2659 2660 if (cur_proc_ptr == (PDR *) 0) 2661 { 2662 error ("#.begin directive without a preceding .ent directive"); 2663 return; 2664 } 2665 2666 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2667 ; 2668 2669 hash_ptr = hash_string (start, 2670 end_p1 - start, 2671 &orig_str_hash[0], 2672 (symint_t *) 0); 2673 2674 if (hash_ptr == (shash_t *) 0) 2675 { 2676 error ("label %.*s not found for #.begin", 2677 (int) (end_p1 - start), start); 2678 return; 2679 } 2680 2681 if (cur_oproc_begin == (SYMR *) 0) 2682 { 2683 error ("procedure table %.*s not found for #.begin", 2684 (int) (end_p1 - start), start); 2685 return; 2686 } 2687 2688 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2689 st_Block, sc_Text, 2690 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2691 (symint_t) 0); 2692} 2693 2694 2695/* Parse #.bend directives which have a label as the first argument 2696 which gives the location of the end of the block. */ 2697 2698STATIC void 2699parse_bend (const char *start) 2700{ 2701 const char *end_p1; /* end of label */ 2702 int ch; 2703 shash_t *hash_ptr; /* hash pointer to lookup label */ 2704 2705 if (cur_file_ptr == (efdr_t *) 0) 2706 { 2707 error ("#.begin directive without a preceding .file directive"); 2708 return; 2709 } 2710 2711 if (cur_proc_ptr == (PDR *) 0) 2712 { 2713 error ("#.bend directive without a preceding .ent directive"); 2714 return; 2715 } 2716 2717 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++) 2718 ; 2719 2720 hash_ptr = hash_string (start, 2721 end_p1 - start, 2722 &orig_str_hash[0], 2723 (symint_t *) 0); 2724 2725 if (hash_ptr == (shash_t *) 0) 2726 { 2727 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start); 2728 return; 2729 } 2730 2731 if (cur_oproc_begin == (SYMR *) 0) 2732 { 2733 error ("procedure table %.*s not found for #.bend", 2734 (int) (end_p1 - start), start); 2735 return; 2736 } 2737 2738 (void) add_local_symbol ((const char *) 0, (const char *) 0, 2739 st_End, sc_Text, 2740 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value, 2741 (symint_t) 0); 2742} 2743 2744 2745/* Parse #.def directives, which are contain standard COFF subdirectives 2746 to describe the debugging format. These subdirectives include: 2747 2748 .scl specify storage class 2749 .val specify a value 2750 .endef specify end of COFF directives 2751 .type specify the type 2752 .size specify the size of an array 2753 .dim specify an array dimension 2754 .tag specify a tag for a struct, union, or enum. */ 2755 2756STATIC void 2757parse_def (const char *name_start) 2758{ 2759 const char *dir_start; /* start of current directive*/ 2760 const char *dir_end_p1; /* end+1 of current directive*/ 2761 const char *arg_start; /* start of current argument */ 2762 const char *arg_end_p1; /* end+1 of current argument */ 2763 const char *name_end_p1; /* end+1 of label */ 2764 const char *tag_start = 0; /* start of tag name */ 2765 const char *tag_end_p1 = 0; /* end+1 of tag name */ 2766 sc_t storage_class = sc_Nil; 2767 st_t symbol_type = st_Nil; 2768 type_info_t t; 2769 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/ 2770 int is_function = 0; /* != 0 if function */ 2771 symint_t value = 0; 2772 symint_t indx = cur_file_ptr->void_type; 2773 int error_line = 0; 2774 symint_t arg_number; 2775 symint_t temp_array[ N_TQ ]; 2776 int arg_was_number; 2777 int ch, i; 2778 Ptrdiff_t len; 2779 2780 static int inside_enumeration = 0; /* is this an enumeration? */ 2781 2782 2783 /* Initialize the type information. */ 2784 t = type_info_init; 2785 2786 2787 /* Search for the end of the name being defined. */ 2788 /* Allow spaces and such in names for G++ templates, which produce stabs 2789 that look like: 2790 2791 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */ 2792 2793 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++) 2794 ; 2795 2796 if (ch == '\0') 2797 { 2798 error_line = __LINE__; 2799 saber_stop (); 2800 goto bomb_out; 2801 } 2802 2803 /* Parse the remaining subdirectives now. */ 2804 dir_start = name_end_p1+1; 2805 for (;;) 2806 { 2807 while ((ch = *dir_start) == ' ' || ch == '\t') 2808 ++dir_start; 2809 2810 if (ch != '.') 2811 { 2812 error_line = __LINE__; 2813 saber_stop (); 2814 goto bomb_out; 2815 } 2816 2817 /* Are we done? */ 2818 if (dir_start[1] == 'e' 2819 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0) 2820 break; 2821 2822 /* Pick up the subdirective now. */ 2823 for (dir_end_p1 = dir_start+1; 2824 (ch = *dir_end_p1) != ' ' && ch != '\t'; 2825 dir_end_p1++) 2826 { 2827 if (ch == '\0' || ISSPACE (ch)) 2828 { 2829 error_line = __LINE__; 2830 saber_stop (); 2831 goto bomb_out; 2832 } 2833 } 2834 2835 /* Pick up the subdirective argument now. */ 2836 arg_was_number = arg_number = 0; 2837 arg_end_p1 = 0; 2838 arg_start = dir_end_p1+1; 2839 ch = *arg_start; 2840 while (ch == ' ' || ch == '\t') 2841 ch = *++arg_start; 2842 2843 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2844 { 2845 int ch2; 2846 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2847 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2848 arg_was_number++; 2849 } 2850 2851 else if (ch == '\0' || ISSPACE (ch)) 2852 { 2853 error_line = __LINE__; 2854 saber_stop (); 2855 goto bomb_out; 2856 } 2857 2858 if (!arg_was_number) 2859 { 2860 /* Allow spaces and such in names for G++ templates. */ 2861 for (arg_end_p1 = arg_start+1; 2862 (ch = *arg_end_p1) != ';' && ch != '\0'; 2863 arg_end_p1++) 2864 ; 2865 2866 if (ch == '\0') 2867 { 2868 error_line = __LINE__; 2869 saber_stop (); 2870 goto bomb_out; 2871 } 2872 } 2873 2874 /* Classify the directives now. */ 2875 len = dir_end_p1 - dir_start; 2876 switch (dir_start[1]) 2877 { 2878 default: 2879 error_line = __LINE__; 2880 saber_stop (); 2881 goto bomb_out; 2882 2883 case 'd': 2884 if (len == sizeof (".dim")-1 2885 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0 2886 && arg_was_number) 2887 { 2888 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 2889 2890 *t_ptr = arg_number; 2891 while (*arg_end_p1 == ',' && arg_was_number) 2892 { 2893 arg_start = arg_end_p1+1; 2894 ch = *arg_start; 2895 while (ch == ' ' || ch == '\t') 2896 ch = *++arg_start; 2897 2898 arg_was_number = 0; 2899 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2900 { 2901 int ch2; 2902 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2903 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2904 arg_was_number++; 2905 2906 if (t_ptr == &temp_array[0]) 2907 { 2908 error_line = __LINE__; 2909 saber_stop (); 2910 goto bomb_out; 2911 } 2912 2913 *--t_ptr = arg_number; 2914 } 2915 } 2916 2917 /* Reverse order of dimensions. */ 2918 while (t_ptr <= &temp_array[ N_TQ-1 ]) 2919 { 2920 if (t.num_dims >= N_TQ-1) 2921 { 2922 error_line = __LINE__; 2923 saber_stop (); 2924 goto bomb_out; 2925 } 2926 2927 t.dimensions[ t.num_dims++ ] = *t_ptr++; 2928 } 2929 break; 2930 } 2931 else 2932 { 2933 error_line = __LINE__; 2934 saber_stop (); 2935 goto bomb_out; 2936 } 2937 2938 2939 case 's': 2940 if (len == sizeof (".scl")-1 2941 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0 2942 && arg_was_number 2943 && arg_number < ((symint_t) C_MAX)) 2944 { 2945 /* If the symbol is a static or external, we have 2946 already gotten the appropriate type and class, so 2947 make sure we don't override those values. This is 2948 needed because there are some type and classes that 2949 are not in COFF, such as short data, etc. */ 2950 if (symbol_type == st_Nil) 2951 { 2952 symbol_type = map_coff_sym_type[arg_number]; 2953 storage_class = map_coff_storage [arg_number]; 2954 } 2955 break; 2956 } 2957 2958 else if (len == sizeof (".size")-1 2959 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0 2960 && arg_was_number) 2961 { 2962 symint_t *t_ptr = &temp_array[ N_TQ-1 ]; 2963 2964 *t_ptr = arg_number; 2965 while (*arg_end_p1 == ',' && arg_was_number) 2966 { 2967 arg_start = arg_end_p1+1; 2968 ch = *arg_start; 2969 while (ch == ' ' || ch == '\t') 2970 ch = *++arg_start; 2971 2972 arg_was_number = 0; 2973 if (ISDIGIT (ch) || ch == '-' || ch == '+') 2974 { 2975 int ch2; 2976 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0); 2977 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',') 2978 arg_was_number++; 2979 2980 if (t_ptr == &temp_array[0]) 2981 { 2982 error_line = __LINE__; 2983 saber_stop (); 2984 goto bomb_out; 2985 } 2986 2987 *--t_ptr = arg_number; 2988 } 2989 } 2990 2991 /* Reverse order of sizes. */ 2992 while (t_ptr <= &temp_array[ N_TQ-1 ]) 2993 { 2994 if (t.num_sizes >= N_TQ-1) 2995 { 2996 error_line = __LINE__; 2997 saber_stop (); 2998 goto bomb_out; 2999 } 3000 3001 t.sizes[ t.num_sizes++ ] = *t_ptr++; 3002 } 3003 break; 3004 } 3005 3006 else 3007 { 3008 error_line = __LINE__; 3009 saber_stop (); 3010 goto bomb_out; 3011 } 3012 3013 3014 case 't': 3015 if (len == sizeof (".type")-1 3016 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0 3017 && arg_was_number) 3018 { 3019 tq_t *tq_ptr = &t.type_qualifiers[0]; 3020 3021 t.orig_type = (coff_type_t) (arg_number & N_BTMASK); 3022 t.basic_type = map_coff_types [(int) t.orig_type]; 3023 for (i = N_TQ-1; i >= 0; i--) 3024 { 3025 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT) 3026 & N_TMASK); 3027 3028 if (dt != (int) DT_NON) 3029 *tq_ptr++ = map_coff_derived_type [dt]; 3030 } 3031 3032 /* If this is a function, ignore it, so that we don't get 3033 two entries (one from the .ent, and one for the .def 3034 that precedes it). Save the type information so that 3035 the end block can properly add it after the begin block 3036 index. For MIPS knows what reason, we must strip off 3037 the function type at this point. */ 3038 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc) 3039 { 3040 is_function = 1; 3041 tq_ptr[-1] = tq_Nil; 3042 } 3043 3044 break; 3045 } 3046 3047 else if (len == sizeof (".tag")-1 3048 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0) 3049 { 3050 tag_start = arg_start; 3051 tag_end_p1 = arg_end_p1; 3052 break; 3053 } 3054 3055 else 3056 { 3057 error_line = __LINE__; 3058 saber_stop (); 3059 goto bomb_out; 3060 } 3061 3062 3063 case 'v': 3064 if (len == sizeof (".val")-1 3065 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0) 3066 { 3067 if (arg_was_number) 3068 value = arg_number; 3069 3070 /* If the value is not an integer value, it must be the 3071 name of a static or global item. Look up the name in 3072 the original symbol table to pick up the storage 3073 class, symbol type, etc. */ 3074 else 3075 { 3076 shash_t *orig_hash_ptr; /* hash within orig sym table*/ 3077 shash_t *ext_hash_ptr; /* hash within ext. sym table*/ 3078 3079 ext_hash_ptr = hash_string (arg_start, 3080 arg_end_p1 - arg_start, 3081 &ext_str_hash[0], 3082 (symint_t *) 0); 3083 3084 if (ext_hash_ptr != (shash_t *) 0 3085 && ext_hash_ptr->esym_ptr != (EXTR *) 0) 3086 eptr = ext_hash_ptr->esym_ptr; 3087 3088 orig_hash_ptr = hash_string (arg_start, 3089 arg_end_p1 - arg_start, 3090 &orig_str_hash[0], 3091 (symint_t *) 0); 3092 3093 if ((orig_hash_ptr == (shash_t *) 0 3094 || orig_hash_ptr->sym_ptr == (SYMR *) 0) 3095 && eptr == (EXTR *) 0) 3096 { 3097 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n", 3098 (int) (arg_end_p1 - arg_start), 3099 arg_start); 3100 value = 0; 3101 } 3102 else 3103 { 3104 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0 3105 && orig_hash_ptr->sym_ptr != (SYMR *) 0) 3106 ? orig_hash_ptr->sym_ptr 3107 : &eptr->asym; 3108 3109 symbol_type = (st_t) ptr->st; 3110 storage_class = (sc_t) ptr->sc; 3111 value = ptr->value; 3112 } 3113 } 3114 break; 3115 } 3116 else 3117 { 3118 error_line = __LINE__; 3119 saber_stop (); 3120 goto bomb_out; 3121 } 3122 } 3123 3124 /* Set up to find next directive. */ 3125 dir_start = arg_end_p1 + 1; 3126 } 3127 3128 3129 if (storage_class == sc_Bits) 3130 { 3131 t.bitfield = 1; 3132 t.extra_sizes = 1; 3133 } 3134 else 3135 t.extra_sizes = 0; 3136 3137 if (t.num_dims > 0) 3138 { 3139 int num_real_sizes = t.num_sizes - t.extra_sizes; 3140 int diff = t.num_dims - num_real_sizes; 3141 int i = t.num_dims - 1; 3142 int j; 3143 3144 if (num_real_sizes != 1 || diff < 0) 3145 { 3146 error_line = __LINE__; 3147 saber_stop (); 3148 goto bomb_out; 3149 } 3150 3151 /* If this is an array, make sure the same number of dimensions 3152 and sizes were passed, creating extra sizes for multiply 3153 dimensioned arrays if not passed. */ 3154 3155 if (diff) 3156 { 3157 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--) 3158 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0; 3159 3160 t.num_sizes = i + 1; 3161 for ( i--; i >= 0; i-- ) 3162 { 3163 if (t.dimensions[ i+1 ]) 3164 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ]; 3165 else 3166 t.sizes[ i ] = t.sizes[ i+1 ]; 3167 } 3168 } 3169 } 3170 3171 /* Except for enumeration members & begin/ending of scopes, put the 3172 type word in the aux. symbol table. */ 3173 3174 if (symbol_type == st_Block || symbol_type == st_End) 3175 indx = 0; 3176 3177 else if (inside_enumeration) 3178 indx = cur_file_ptr->void_type; 3179 3180 else 3181 { 3182 if (t.basic_type == bt_Struct 3183 || t.basic_type == bt_Union 3184 || t.basic_type == bt_Enum) 3185 { 3186 if (tag_start == (char *) 0) 3187 { 3188 error ("no tag specified for %.*s", 3189 (int) (name_end_p1 - name_start), 3190 name_start); 3191 return; 3192 } 3193 3194 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil, 3195 t.basic_type); 3196 } 3197 3198 if (is_function) 3199 { 3200 last_func_type_info = t; 3201 last_func_eptr = eptr; 3202 return; 3203 } 3204 3205 indx = add_aux_sym_tir (&t, 3206 hash_yes, 3207 &cur_file_ptr->thash_head[0]); 3208 } 3209 3210 3211 /* If this is an external or static symbol, update the appropriate 3212 external symbol. */ 3213 3214 if (eptr != (EXTR *) 0 3215 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0)) 3216 { 3217 eptr->ifd = cur_file_ptr->file_index; 3218 eptr->asym.index = indx; 3219 } 3220 3221 3222 /* Do any last minute adjustments that are necessary. */ 3223 switch (symbol_type) 3224 { 3225 default: 3226 break; 3227 3228 3229 /* For the beginning of structs, unions, and enumerations, the 3230 size info needs to be passed in the value field. */ 3231 3232 case st_Block: 3233 if (t.num_sizes - t.num_dims - t.extra_sizes != 1) 3234 { 3235 error_line = __LINE__; 3236 saber_stop (); 3237 goto bomb_out; 3238 } 3239 3240 else 3241 value = t.sizes[0]; 3242 3243 inside_enumeration = (t.orig_type == T_ENUM); 3244 break; 3245 3246 3247 /* For the end of structs, unions, and enumerations, omit the 3248 name which is always ".eos". This needs to be done last, so 3249 that any error reporting above gives the correct name. */ 3250 3251 case st_End: 3252 name_start = name_end_p1 = 0; 3253 value = inside_enumeration = 0; 3254 break; 3255 3256 3257 /* Members of structures and unions that aren't bitfields, need 3258 to adjust the value from a byte offset to a bit offset. 3259 Members of enumerations do not have the value adjusted, and 3260 can be distinguished by indx == indexNil. For enumerations, 3261 update the maximum enumeration value. */ 3262 3263 case st_Member: 3264 if (!t.bitfield && !inside_enumeration) 3265 value *= 8; 3266 3267 break; 3268 } 3269 3270 3271 /* Add the symbol, except for global symbols outside of functions, 3272 for which the external symbol table is fine enough. */ 3273 3274 if (eptr == (EXTR *) 0 3275 || eptr->asym.st == (int) st_Nil 3276 || cur_proc_ptr != (PDR *) 0) 3277 { 3278 symint_t isym = add_local_symbol (name_start, name_end_p1, 3279 symbol_type, storage_class, 3280 value, 3281 indx); 3282 3283 /* Deal with struct, union, and enum tags. */ 3284 if (symbol_type == st_Block) 3285 { 3286 /* Create or update the tag information. */ 3287 tag_t *tag_ptr = get_tag (name_start, 3288 name_end_p1, 3289 isym, 3290 t.basic_type); 3291 3292 /* If there are any forward references, fill in the appropriate 3293 file and symbol indexes. */ 3294 3295 symint_t file_index = cur_file_ptr->file_index; 3296 forward_t *f_next = tag_ptr->forward_ref; 3297 forward_t *f_cur; 3298 3299 while (f_next != (forward_t *) 0) 3300 { 3301 f_cur = f_next; 3302 f_next = f_next->next; 3303 3304 f_cur->ifd_ptr->isym = file_index; 3305 f_cur->index_ptr->rndx.index = isym; 3306 3307 free_forward (f_cur); 3308 } 3309 3310 tag_ptr->forward_ref = (forward_t *) 0; 3311 } 3312 } 3313 3314 /* Normal return */ 3315 return; 3316 3317 /* Error return, issue message. */ 3318bomb_out: 3319 if (error_line) 3320 error ("compiler error, badly formed #.def (internal line # = %d)", error_line); 3321 else 3322 error ("compiler error, badly formed #.def"); 3323 3324 return; 3325} 3326 3327 3328/* Parse .end directives. */ 3329 3330STATIC void 3331parse_end (const char *start) 3332{ 3333 const char *start_func, *end_func_p1; 3334 int ch; 3335 symint_t value; 3336 FDR *orig_fdr; 3337 3338 if (cur_file_ptr == (efdr_t *) 0) 3339 { 3340 error (".end directive without a preceding .file directive"); 3341 return; 3342 } 3343 3344 if (cur_proc_ptr == (PDR *) 0) 3345 { 3346 error (".end directive without a preceding .ent directive"); 3347 return; 3348 } 3349 3350 /* Get the function name, skipping whitespace. */ 3351 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3352 ; 3353 3354 ch = *start_func; 3355 if (!IS_ASM_IDENT (ch)) 3356 { 3357 error (".end directive has no name"); 3358 return; 3359 } 3360 3361 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3362 ; 3363 3364 3365 /* Get the value field for creating the end from the original object 3366 file (which we find by locating the procedure start, and using the 3367 pointer to the end+1 block and backing up. The index points to a 3368 two word aux. symbol, whose first word is the index of the end 3369 symbol, and the second word is the type of the function return 3370 value. */ 3371 3372 orig_fdr = cur_file_ptr->orig_fdr; 3373 value = 0; 3374 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0) 3375 value = cur_oproc_end->value; 3376 3377 else 3378 error ("cannot find .end block for %.*s", 3379 (int) (end_func_p1 - start_func), start_func); 3380 3381 (void) add_local_symbol (start_func, end_func_p1, 3382 st_End, sc_Text, 3383 value, 3384 (symint_t) 0); 3385 3386 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0; 3387} 3388 3389 3390/* Parse .ent directives. */ 3391 3392STATIC void 3393parse_ent (const char *start) 3394{ 3395 const char *start_func, *end_func_p1; 3396 int ch; 3397 3398 if (cur_file_ptr == (efdr_t *) 0) 3399 { 3400 error (".ent directive without a preceding .file directive"); 3401 return; 3402 } 3403 3404 if (cur_proc_ptr != (PDR *) 0) 3405 { 3406 error ("second .ent directive found before .end directive"); 3407 return; 3408 } 3409 3410 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++) 3411 ; 3412 3413 ch = *start_func; 3414 if (!IS_ASM_IDENT (ch)) 3415 { 3416 error (".ent directive has no name"); 3417 return; 3418 } 3419 3420 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1) 3421 ; 3422 3423 (void) add_procedure (start_func, end_func_p1); 3424} 3425 3426 3427/* Parse .file directives. */ 3428 3429STATIC void 3430parse_file (const char *start) 3431{ 3432 char *p; 3433 char *start_name, *end_name_p1; 3434 3435 (void) strtol (start, &p, 0); 3436 if (start == p 3437 || (start_name = strchr (p, '"')) == (char *) 0 3438 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0) 3439 { 3440 error ("invalid .file directive"); 3441 return; 3442 } 3443 3444 if (cur_proc_ptr != (PDR *) 0) 3445 { 3446 error ("no way to handle .file within .ent/.end section"); 3447 return; 3448 } 3449 3450 add_file (start_name, end_name_p1); 3451} 3452 3453 3454/* Make sure the @stabs symbol is emitted. */ 3455 3456static void 3457mark_stabs (const char *start ATTRIBUTE_UNUSED) 3458{ 3459 if (!stabs_seen) 3460 { 3461 /* Add a dummy @stabs symbol. */ 3462 stabs_seen = 1; 3463 (void) add_local_symbol (stabs_symbol, 3464 stabs_symbol + sizeof (stabs_symbol), 3465 stNil, scInfo, -1, MIPS_MARK_STAB (0)); 3466 3467 } 3468} 3469 3470 3471/* Parse .stabs directives. 3472 3473 .stabs directives have five fields: 3474 "string" a string, encoding the type information. 3475 code a numeric code, defined in <stab.h> 3476 0 a zero 3477 0 a zero or line number 3478 value a numeric value or an address. 3479 3480 If the value is relocatable, we transform this into: 3481 iss points as an index into string space 3482 value value from lookup of the name 3483 st st from lookup of the name 3484 sc sc from lookup of the name 3485 index code|CODE_MASK 3486 3487 If the value is not relocatable, we transform this into: 3488 iss points as an index into string space 3489 value value 3490 st st_Nil 3491 sc sc_Nil 3492 index code|CODE_MASK 3493 3494 .stabn directives have four fields (string is null): 3495 code a numeric code, defined in <stab.h> 3496 0 a zero 3497 0 a zero or a line number 3498 value a numeric value or an address. */ 3499 3500STATIC void 3501parse_stabs_common (const char *string_start, /* start of string or NULL */ 3502 const char *string_end, /* end+1 of string or NULL */ 3503 const char *rest) /* rest of the directive. */ 3504{ 3505 efdr_t *save_file_ptr = cur_file_ptr; 3506 symint_t code; 3507 symint_t value; 3508 char *p; 3509 st_t st; 3510 sc_t sc; 3511 int ch; 3512 3513 if (stabs_seen == 0) 3514 mark_stabs (""); 3515 3516 /* Read code from stabs. */ 3517 if (!ISDIGIT (*rest)) 3518 { 3519 error ("invalid .stabs/.stabn directive, code is non-numeric"); 3520 return; 3521 } 3522 3523 code = strtol (rest, &p, 0); 3524 3525 /* Line number stabs are handled differently, since they have two values, 3526 the line number and the address of the label. We use the index field 3527 (aka code) to hold the line number, and the value field to hold the 3528 address. The symbol type is st_Label, which should be different from 3529 the other stabs, so that gdb can recognize it. */ 3530 3531 if (code == (int) N_SLINE) 3532 { 3533 SYMR *sym_ptr, dummy_symr; 3534 shash_t *shash_ptr; 3535 3536 /* Skip ,0, */ 3537 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3])) 3538 { 3539 error ("invalid line number .stabs/.stabn directive"); 3540 return; 3541 } 3542 3543 code = strtol (p+3, &p, 0); 3544 ch = *++p; 3545 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch)) 3546 { 3547 error ("invalid line number .stabs/.stabn directive"); 3548 return; 3549 } 3550 3551 dummy_symr.index = code; 3552 if (dummy_symr.index != code) 3553 { 3554 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)", 3555 code); 3556 3557 return; 3558 } 3559 3560 shash_ptr = hash_string (p, 3561 strlen (p) - 1, 3562 &orig_str_hash[0], 3563 (symint_t *) 0); 3564 3565 if (shash_ptr == (shash_t *) 0 3566 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3567 { 3568 error ("invalid .stabs/.stabn directive, value not found"); 3569 return; 3570 } 3571 3572 if ((st_t) sym_ptr->st != st_Label) 3573 { 3574 error ("invalid line number .stabs/.stabn directive"); 3575 return; 3576 } 3577 3578 st = st_Label; 3579 sc = (sc_t) sym_ptr->sc; 3580 value = sym_ptr->value; 3581 } 3582 else 3583 { 3584 /* Skip ,<num>,<num>, */ 3585 if (*p++ != ',') 3586 goto failure; 3587 for (; ISDIGIT (*p); p++) 3588 ; 3589 if (*p++ != ',') 3590 goto failure; 3591 for (; ISDIGIT (*p); p++) 3592 ; 3593 if (*p++ != ',') 3594 goto failure; 3595 ch = *p; 3596 if (!IS_ASM_IDENT (ch) && ch != '-') 3597 { 3598 failure: 3599 error ("invalid .stabs/.stabn directive, bad character"); 3600 return; 3601 } 3602 3603 if (ISDIGIT (ch) || ch == '-') 3604 { 3605 st = st_Nil; 3606 sc = sc_Nil; 3607 value = strtol (p, &p, 0); 3608 if (*p != '\n') 3609 { 3610 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3611 return; 3612 } 3613 } 3614 else if (!IS_ASM_IDENT (ch)) 3615 { 3616 error ("invalid .stabs/.stabn directive, bad character"); 3617 return; 3618 } 3619 else 3620 { 3621 SYMR *sym_ptr; 3622 shash_t *shash_ptr; 3623 const char *start, *end_p1; 3624 3625 start = p; 3626 if ((end_p1 = strchr (start, '+')) == (char *) 0) 3627 { 3628 if ((end_p1 = strchr (start, '-')) == (char *) 0) 3629 end_p1 = start + strlen (start) - 1; 3630 } 3631 3632 shash_ptr = hash_string (start, 3633 end_p1 - start, 3634 &orig_str_hash[0], 3635 (symint_t *) 0); 3636 3637 if (shash_ptr == (shash_t *) 0 3638 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0) 3639 { 3640 shash_ptr = hash_string (start, 3641 end_p1 - start, 3642 &ext_str_hash[0], 3643 (symint_t *) 0); 3644 3645 if (shash_ptr == (shash_t *) 0 3646 || shash_ptr->esym_ptr == (EXTR *) 0) 3647 { 3648 error ("invalid .stabs/.stabn directive, value not found"); 3649 return; 3650 } 3651 else 3652 sym_ptr = &(shash_ptr->esym_ptr->asym); 3653 } 3654 3655 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */ 3656 if (code == (int) N_LBRAC || code == (int) N_RBRAC) 3657 { 3658 sc = scNil; 3659 st = stNil; 3660 } 3661 else 3662 { 3663 sc = (sc_t) sym_ptr->sc; 3664 st = (st_t) sym_ptr->st; 3665 } 3666 value = sym_ptr->value; 3667 3668 ch = *end_p1++; 3669 if (ch != '\n') 3670 { 3671 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-')) 3672 || ((ch != '+') && (ch != '-'))) 3673 { 3674 error ("invalid .stabs/.stabn directive, badly formed value"); 3675 return; 3676 } 3677 if (ch == '+') 3678 value += strtol (end_p1, &p, 0); 3679 else if (ch == '-') 3680 value -= strtol (end_p1, &p, 0); 3681 3682 if (*p != '\n') 3683 { 3684 error ("invalid .stabs/.stabn directive, stuff after numeric value"); 3685 return; 3686 } 3687 } 3688 } 3689 code = MIPS_MARK_STAB (code); 3690 } 3691 3692 (void) add_local_symbol (string_start, string_end, st, sc, value, code); 3693 /* Restore normal file type. */ 3694 cur_file_ptr = save_file_ptr; 3695} 3696 3697 3698STATIC void 3699parse_stabs (const char *start) 3700{ 3701 const char *end = strchr (start+1, '"'); 3702 3703 if (*start != '"' || end == (const char *) 0 || end[1] != ',') 3704 { 3705 error ("invalid .stabs directive, no string"); 3706 return; 3707 } 3708 3709 parse_stabs_common (start+1, end, end+2); 3710} 3711 3712 3713STATIC void 3714parse_stabn (const char *start) 3715{ 3716 parse_stabs_common ((const char *) 0, (const char *) 0, start); 3717} 3718 3719 3720/* Parse the input file, and write the lines to the output file 3721 if needed. */ 3722 3723STATIC void 3724parse_input (void) 3725{ 3726 char *p; 3727 Size_t i; 3728 thead_t *ptag_head; 3729 tag_t *ptag; 3730 tag_t *ptag_next; 3731 3732 if (debug) 3733 fprintf (stderr, "\tinput\n"); 3734 3735 /* Add a dummy scope block around the entire compilation unit for 3736 structures defined outside of blocks. */ 3737 ptag_head = allocate_thead (); 3738 ptag_head->first_tag = 0; 3739 ptag_head->prev = cur_tag_head; 3740 cur_tag_head = ptag_head; 3741 3742 while ((p = read_line ()) != (char *) 0) 3743 { 3744 /* Skip leading blanks. */ 3745 while (ISSPACE ((unsigned char)*p)) 3746 p++; 3747 3748 /* See if it's a directive we handle. If so, dispatch handler. */ 3749 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++) 3750 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0 3751 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len]))) 3752 { 3753 p += pseudo_ops[i].len; /* skip to first argument */ 3754 while (ISSPACE ((unsigned char)*p)) 3755 p++; 3756 3757 (*pseudo_ops[i].func)( p ); 3758 break; 3759 } 3760 } 3761 3762 /* Process any tags at global level. */ 3763 ptag_head = cur_tag_head; 3764 cur_tag_head = ptag_head->prev; 3765 3766 for (ptag = ptag_head->first_tag; 3767 ptag != (tag_t *) 0; 3768 ptag = ptag_next) 3769 { 3770 if (ptag->forward_ref != (forward_t *) 0) 3771 add_unknown_tag (ptag); 3772 3773 ptag_next = ptag->same_block; 3774 ptag->hash_ptr->tag_ptr = ptag->same_name; 3775 free_tag (ptag); 3776 } 3777 3778 free_thead (ptag_head); 3779 3780} 3781 3782 3783/* Update the global headers with the final offsets in preparation 3784 to write out the .T file. */ 3785 3786STATIC void 3787update_headers (void) 3788{ 3789 symint_t i; 3790 efdr_t *file_ptr; 3791 3792 /* Set up the symbolic header. */ 3793 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 3794 symbolic_header.magic = orig_sym_hdr.magic; 3795 symbolic_header.vstamp = orig_sym_hdr.vstamp; 3796 3797 /* Set up global counts. */ 3798 symbolic_header.issExtMax = ext_strings.num_allocated; 3799 symbolic_header.idnMax = dense_num.num_allocated; 3800 symbolic_header.ifdMax = file_desc.num_allocated; 3801 symbolic_header.iextMax = ext_symbols.num_allocated; 3802 symbolic_header.ilineMax = orig_sym_hdr.ilineMax; 3803 symbolic_header.ioptMax = orig_sym_hdr.ioptMax; 3804 symbolic_header.cbLine = orig_sym_hdr.cbLine; 3805 symbolic_header.crfd = orig_sym_hdr.crfd; 3806 3807 3808 /* Loop through each file, figuring out how many local syms, 3809 line numbers, etc. there are. Also, put out end symbol 3810 for the filename. */ 3811 3812 for (file_ptr = first_file; 3813 file_ptr != (efdr_t *) 0; 3814 file_ptr = file_ptr->next_file) 3815 { 3816 SYMR *sym_start; 3817 SYMR *sym; 3818 SYMR *sym_end_p1; 3819 FDR *fd_ptr = file_ptr->orig_fdr; 3820 3821 cur_file_ptr = file_ptr; 3822 3823 /* Copy st_Static symbols from the original local symbol table if 3824 they did not get added to the new local symbol table. 3825 This happens with stabs-in-ecoff or if the source file is 3826 compiled without debugging. */ 3827 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 3828 sym_end_p1 = sym_start + fd_ptr->csym; 3829 for (sym = sym_start; sym < sym_end_p1; sym++) 3830 { 3831 if ((st_t) sym->st == st_Static) 3832 { 3833 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 3834 Size_t len = strlen (str); 3835 shash_t *hash_ptr; 3836 3837 /* Ignore internal labels. */ 3838 if (str[0] == '$' && str[1] == 'L') 3839 continue; 3840 hash_ptr = hash_string (str, 3841 (Ptrdiff_t) len, 3842 &file_ptr->shash_head[0], 3843 (symint_t *) 0); 3844 if (hash_ptr == (shash_t *) 0) 3845 { 3846 (void) add_local_symbol (str, str + len, 3847 (st_t) sym->st, (sc_t) sym->sc, 3848 (symint_t) sym->value, 3849 (symint_t) indexNil); 3850 } 3851 } 3852 } 3853 (void) add_local_symbol ((const char *) 0, (const char *) 0, 3854 st_End, sc_Text, 3855 (symint_t) 0, 3856 (symint_t) 0); 3857 3858 file_ptr->fdr.cpd = file_ptr->procs.num_allocated; 3859 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax; 3860 symbolic_header.ipdMax += file_ptr->fdr.cpd; 3861 3862 file_ptr->fdr.csym = file_ptr->symbols.num_allocated; 3863 file_ptr->fdr.isymBase = symbolic_header.isymMax; 3864 symbolic_header.isymMax += file_ptr->fdr.csym; 3865 3866 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated; 3867 file_ptr->fdr.iauxBase = symbolic_header.iauxMax; 3868 symbolic_header.iauxMax += file_ptr->fdr.caux; 3869 3870 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated; 3871 file_ptr->fdr.issBase = symbolic_header.issMax; 3872 symbolic_header.issMax += file_ptr->fdr.cbSs; 3873 } 3874 3875#ifndef ALIGN_SYMTABLE_OFFSET 3876#define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET) 3877#endif 3878 3879 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3880 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */ 3881 if (i > 0) 3882 { 3883 symbolic_header.cbLineOffset = file_offset; 3884 file_offset += i; 3885 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3886 } 3887 3888 i = symbolic_header.ioptMax; /* optimization symbols */ 3889 if (((long) i) > 0) 3890 { 3891 symbolic_header.cbOptOffset = file_offset; 3892 file_offset += i * sizeof (OPTR); 3893 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3894 } 3895 3896 i = symbolic_header.idnMax; /* dense numbers */ 3897 if (i > 0) 3898 { 3899 symbolic_header.cbDnOffset = file_offset; 3900 file_offset += i * sizeof (DNR); 3901 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3902 } 3903 3904 i = symbolic_header.ipdMax; /* procedure tables */ 3905 if (i > 0) 3906 { 3907 symbolic_header.cbPdOffset = file_offset; 3908 file_offset += i * sizeof (PDR); 3909 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3910 } 3911 3912 i = symbolic_header.isymMax; /* local symbols */ 3913 if (i > 0) 3914 { 3915 symbolic_header.cbSymOffset = file_offset; 3916 file_offset += i * sizeof (SYMR); 3917 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3918 } 3919 3920 i = symbolic_header.iauxMax; /* aux syms. */ 3921 if (i > 0) 3922 { 3923 symbolic_header.cbAuxOffset = file_offset; 3924 file_offset += i * sizeof (TIR); 3925 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3926 } 3927 3928 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */ 3929 if (i > 0) 3930 { 3931 symbolic_header.cbSsOffset = file_offset; 3932 file_offset += i; 3933 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3934 } 3935 3936 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */ 3937 if (i > 0) 3938 { 3939 symbolic_header.cbSsExtOffset = file_offset; 3940 file_offset += i; 3941 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3942 } 3943 3944 i = symbolic_header.ifdMax; /* file tables */ 3945 if (i > 0) 3946 { 3947 symbolic_header.cbFdOffset = file_offset; 3948 file_offset += i * sizeof (FDR); 3949 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3950 } 3951 3952 i = symbolic_header.crfd; /* relative file descriptors */ 3953 if (i > 0) 3954 { 3955 symbolic_header.cbRfdOffset = file_offset; 3956 file_offset += i * sizeof (symint_t); 3957 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3958 } 3959 3960 i = symbolic_header.iextMax; /* external symbols */ 3961 if (i > 0) 3962 { 3963 symbolic_header.cbExtOffset = file_offset; 3964 file_offset += i * sizeof (EXTR); 3965 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset); 3966 } 3967} 3968 3969 3970/* Write out a varray at a given location. */ 3971 3972STATIC void 3973write_varray (varray_t *vp, /* virtual array */ 3974 off_t offset, /* offset to write varray to */ 3975 const char *str) /* string to print out when tracing */ 3976{ 3977 int num_write, sys_write; 3978 vlinks_t *ptr; 3979 3980 if (vp->num_allocated == 0) 3981 return; 3982 3983 if (debug) 3984 fprintf (stderr, "\twarray\tvp = " HOST_PTR_PRINTF 3985 ", offset = %7lu, size = %7lu, %s\n", 3986 (void *) vp, (unsigned long) offset, 3987 vp->num_allocated * vp->object_size, str); 3988 3989 if (file_offset != (unsigned long) offset 3990 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 3991 pfatal_with_name (object_name); 3992 3993 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next) 3994 { 3995 num_write = (ptr->next == (vlinks_t *) 0) 3996 ? vp->objects_last_page * vp->object_size 3997 : vp->objects_per_page * vp->object_size; 3998 3999 sys_write = fwrite (ptr->datum, 1, num_write, object_stream); 4000 if (sys_write <= 0) 4001 pfatal_with_name (object_name); 4002 4003 else if (sys_write != num_write) 4004 fatal ("wrote %d bytes to %s, system returned %d", 4005 num_write, 4006 object_name, 4007 sys_write); 4008 4009 file_offset += num_write; 4010 } 4011} 4012 4013 4014/* Write out the symbol table in the object file. */ 4015 4016STATIC void 4017write_object (void) 4018{ 4019 int sys_write; 4020 efdr_t *file_ptr; 4021 off_t offset; 4022 4023 if (debug) 4024 fprintf (stderr, "\n\twrite\tvp = " HOST_PTR_PRINTF 4025 ", offset = %7u, size = %7lu, %s\n", 4026 (void *) &symbolic_header, 0, 4027 (unsigned long) sizeof (symbolic_header), "symbolic header"); 4028 4029 sys_write = fwrite (&symbolic_header, 4030 1, 4031 sizeof (symbolic_header), 4032 object_stream); 4033 4034 if (sys_write < 0) 4035 pfatal_with_name (object_name); 4036 4037 else if (sys_write != sizeof (symbolic_header)) 4038 fatal ("wrote %d bytes to %s, system returned %d", 4039 (int) sizeof (symbolic_header), 4040 object_name, 4041 sys_write); 4042 4043 4044 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr; 4045 4046 if (symbolic_header.cbLine > 0) /* line numbers */ 4047 { 4048 long sys_write; 4049 4050 if (file_offset != (unsigned long) symbolic_header.cbLineOffset 4051 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0) 4052 pfatal_with_name (object_name); 4053 4054 if (debug) 4055 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF 4056 ", offset = %7lu, size = %7lu, %s\n", 4057 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset, 4058 (long) symbolic_header.cbLine, "Line numbers"); 4059 4060 sys_write = fwrite (orig_linenum, 4061 1, 4062 symbolic_header.cbLine, 4063 object_stream); 4064 4065 if (sys_write <= 0) 4066 pfatal_with_name (object_name); 4067 4068 else if (sys_write != symbolic_header.cbLine) 4069 fatal ("wrote %ld bytes to %s, system returned %ld", 4070 (long) symbolic_header.cbLine, 4071 object_name, 4072 sys_write); 4073 4074 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine; 4075 } 4076 4077 if (symbolic_header.ioptMax > 0) /* optimization symbols */ 4078 { 4079 long sys_write; 4080 long num_write = symbolic_header.ioptMax * sizeof (OPTR); 4081 4082 if (file_offset != (unsigned long) symbolic_header.cbOptOffset 4083 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0) 4084 pfatal_with_name (object_name); 4085 4086 if (debug) 4087 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF 4088 ", offset = %7lu, size = %7lu, %s\n", 4089 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset, 4090 num_write, "Optimizer symbols"); 4091 4092 sys_write = fwrite (orig_opt_syms, 4093 1, 4094 num_write, 4095 object_stream); 4096 4097 if (sys_write <= 0) 4098 pfatal_with_name (object_name); 4099 4100 else if (sys_write != num_write) 4101 fatal ("wrote %ld bytes to %s, system returned %ld", 4102 num_write, 4103 object_name, 4104 sys_write); 4105 4106 file_offset = symbolic_header.cbOptOffset + num_write; 4107 } 4108 4109 if (symbolic_header.idnMax > 0) /* dense numbers */ 4110 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers"); 4111 4112 if (symbolic_header.ipdMax > 0) /* procedure tables */ 4113 { 4114 offset = symbolic_header.cbPdOffset; 4115 for (file_ptr = first_file; 4116 file_ptr != (efdr_t *) 0; 4117 file_ptr = file_ptr->next_file) 4118 { 4119 write_varray (&file_ptr->procs, offset, "Procedure tables"); 4120 offset = file_offset; 4121 } 4122 } 4123 4124 if (symbolic_header.isymMax > 0) /* local symbols */ 4125 { 4126 offset = symbolic_header.cbSymOffset; 4127 for (file_ptr = first_file; 4128 file_ptr != (efdr_t *) 0; 4129 file_ptr = file_ptr->next_file) 4130 { 4131 write_varray (&file_ptr->symbols, offset, "Local symbols"); 4132 offset = file_offset; 4133 } 4134 } 4135 4136 if (symbolic_header.iauxMax > 0) /* aux symbols */ 4137 { 4138 offset = symbolic_header.cbAuxOffset; 4139 for (file_ptr = first_file; 4140 file_ptr != (efdr_t *) 0; 4141 file_ptr = file_ptr->next_file) 4142 { 4143 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols"); 4144 offset = file_offset; 4145 } 4146 } 4147 4148 if (symbolic_header.issMax > 0) /* local strings */ 4149 { 4150 offset = symbolic_header.cbSsOffset; 4151 for (file_ptr = first_file; 4152 file_ptr != (efdr_t *) 0; 4153 file_ptr = file_ptr->next_file) 4154 { 4155 write_varray (&file_ptr->strings, offset, "Local strings"); 4156 offset = file_offset; 4157 } 4158 } 4159 4160 if (symbolic_header.issExtMax > 0) /* external strings */ 4161 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings"); 4162 4163 if (symbolic_header.ifdMax > 0) /* file tables */ 4164 { 4165 offset = symbolic_header.cbFdOffset; 4166 if (file_offset != (unsigned long) offset 4167 && fseek (object_stream, (long) offset, SEEK_SET) < 0) 4168 pfatal_with_name (object_name); 4169 4170 file_offset = offset; 4171 for (file_ptr = first_file; 4172 file_ptr != (efdr_t *) 0; 4173 file_ptr = file_ptr->next_file) 4174 { 4175 if (debug) 4176 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF 4177 ", offset = %7lu, size = %7lu, %s\n", 4178 (void *) &file_ptr->fdr, file_offset, 4179 (unsigned long) sizeof (FDR), "File header"); 4180 4181 sys_write = fwrite (&file_ptr->fdr, 4182 1, 4183 sizeof (FDR), 4184 object_stream); 4185 4186 if (sys_write < 0) 4187 pfatal_with_name (object_name); 4188 4189 else if (sys_write != sizeof (FDR)) 4190 fatal ("wrote %d bytes to %s, system returned %d", 4191 (int) sizeof (FDR), 4192 object_name, 4193 sys_write); 4194 4195 file_offset = offset += sizeof (FDR); 4196 } 4197 } 4198 4199 if (symbolic_header.crfd > 0) /* relative file descriptors */ 4200 { 4201 long sys_write; 4202 symint_t num_write = symbolic_header.crfd * sizeof (symint_t); 4203 4204 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset 4205 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0) 4206 pfatal_with_name (object_name); 4207 4208 if (debug) 4209 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF 4210 ", offset = %7lu, size = %7lu, %s\n", 4211 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset, 4212 num_write, "Relative file descriptors"); 4213 4214 sys_write = fwrite (orig_rfds, 4215 1, 4216 num_write, 4217 object_stream); 4218 4219 if (sys_write <= 0) 4220 pfatal_with_name (object_name); 4221 4222 else if (sys_write != (long) num_write) 4223 fatal ("wrote %lu bytes to %s, system returned %ld", 4224 num_write, 4225 object_name, 4226 sys_write); 4227 4228 file_offset = symbolic_header.cbRfdOffset + num_write; 4229 } 4230 4231 if (symbolic_header.issExtMax > 0) /* external symbols */ 4232 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols"); 4233 4234 if (fclose (object_stream) != 0) 4235 pfatal_with_name (object_name); 4236} 4237 4238 4239/* Read some bytes at a specified location, and return a pointer. */ 4240 4241STATIC page_t * 4242read_seek (Size_t size, /* # bytes to read */ 4243 off_t offset, /* offset to read at */ 4244 const char *str) /* name for tracing */ 4245{ 4246 page_t *ptr; 4247 long sys_read = 0; 4248 4249 if (size == 0) /* nothing to read */ 4250 return (page_t *) 0; 4251 4252 if (debug) 4253 fprintf (stderr, 4254 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n", 4255 (unsigned long) size, (unsigned long) offset, file_offset, str); 4256 4257#ifndef MALLOC_CHECK 4258 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE); 4259#else 4260 ptr = xcalloc (1, size); 4261#endif 4262 4263 /* If we need to seek, and the distance is nearby, just do some reads, 4264 to speed things up. */ 4265 if (file_offset != (unsigned long) offset) 4266 { 4267 symint_t difference = offset - file_offset; 4268 4269 if (difference < 8) 4270 { 4271 char small_buffer[8]; 4272 4273 sys_read = fread (small_buffer, 1, difference, obj_in_stream); 4274 if (sys_read <= 0) 4275 pfatal_with_name (obj_in_name); 4276 4277 if ((symint_t) sys_read != difference) 4278 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4279 (unsigned long) size, 4280 obj_in_name, 4281 sys_read); 4282 } 4283 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0) 4284 pfatal_with_name (obj_in_name); 4285 } 4286 4287 sys_read = fread (ptr, 1, size, obj_in_stream); 4288 if (sys_read <= 0) 4289 pfatal_with_name (obj_in_name); 4290 4291 if (sys_read != (long) size) 4292 fatal ("wanted to read %lu bytes from %s, system returned %ld", 4293 (unsigned long) size, 4294 obj_in_name, 4295 sys_read); 4296 4297 file_offset = offset + size; 4298 4299 if (file_offset > max_file_offset) 4300 max_file_offset = file_offset; 4301 4302 return ptr; 4303} 4304 4305 4306/* Read the existing object file (and copy to the output object file 4307 if it is different from the input object file), and remove the old 4308 symbol table. */ 4309 4310STATIC void 4311copy_object (void) 4312{ 4313 char buffer[ PAGE_SIZE ]; 4314 int sys_read; 4315 int remaining; 4316 int num_write; 4317 int sys_write; 4318 int fd, es; 4319 int delete_ifd = 0; 4320 int *remap_file_number; 4321 struct stat stat_buf; 4322 4323 if (debug) 4324 fprintf (stderr, "\tcopy\n"); 4325 4326 if (fstat (fileno (obj_in_stream), &stat_buf) != 0 4327 || fseek (obj_in_stream, 0L, SEEK_SET) != 0) 4328 pfatal_with_name (obj_in_name); 4329 4330 sys_read = fread (&orig_file_header, 4331 1, 4332 sizeof (struct filehdr), 4333 obj_in_stream); 4334 4335 if (sys_read < 0) 4336 pfatal_with_name (obj_in_name); 4337 4338 else if (sys_read == 0 && feof (obj_in_stream)) 4339 return; /* create a .T file sans file header */ 4340 4341 else if (sys_read < (int) sizeof (struct filehdr)) 4342 fatal ("wanted to read %d bytes from %s, system returned %d", 4343 (int) sizeof (struct filehdr), 4344 obj_in_name, 4345 sys_read); 4346 4347 4348 if (orig_file_header.f_nsyms != sizeof (HDRR)) 4349 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)", 4350 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR)); 4351 4352 4353 /* Read in the current symbolic header. */ 4354 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0) 4355 pfatal_with_name (input_name); 4356 4357 sys_read = fread (&orig_sym_hdr, 4358 1, 4359 sizeof (orig_sym_hdr), 4360 obj_in_stream); 4361 4362 if (sys_read < 0) 4363 pfatal_with_name (object_name); 4364 4365 else if (sys_read < (int) sizeof (struct filehdr)) 4366 fatal ("wanted to read %d bytes from %s, system returned %d", 4367 (int) sizeof (struct filehdr), 4368 obj_in_name, 4369 sys_read); 4370 4371 4372 /* Read in each of the sections if they exist in the object file. 4373 We read things in in the order the mips assembler creates the 4374 sections, so in theory no extra seeks are done. 4375 4376 For simplicity sake, round each read up to a page boundary, 4377 we may want to revisit this later.... */ 4378 4379 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr); 4380 4381 if (orig_sym_hdr.cbLine > 0) /* line numbers */ 4382 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine, 4383 orig_sym_hdr.cbLineOffset, 4384 "Line numbers"); 4385 4386 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */ 4387 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR), 4388 orig_sym_hdr.cbPdOffset, 4389 "Procedure tables"); 4390 4391 if (orig_sym_hdr.isymMax > 0) /* local symbols */ 4392 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR), 4393 orig_sym_hdr.cbSymOffset, 4394 "Local symbols"); 4395 4396 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */ 4397 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU), 4398 orig_sym_hdr.cbAuxOffset, 4399 "Aux. symbols"); 4400 4401 if (orig_sym_hdr.issMax > 0) /* local strings */ 4402 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax, 4403 orig_sym_hdr.cbSsOffset, 4404 "Local strings"); 4405 4406 if (orig_sym_hdr.issExtMax > 0) /* external strings */ 4407 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax, 4408 orig_sym_hdr.cbSsExtOffset, 4409 "External strings"); 4410 4411 if (orig_sym_hdr.ifdMax > 0) /* file tables */ 4412 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR), 4413 orig_sym_hdr.cbFdOffset, 4414 "File tables"); 4415 4416 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */ 4417 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t), 4418 orig_sym_hdr.cbRfdOffset, 4419 "Relative file descriptors"); 4420 4421 if (orig_sym_hdr.issExtMax > 0) /* external symbols */ 4422 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR), 4423 orig_sym_hdr.cbExtOffset, 4424 "External symbols"); 4425 4426 if (orig_sym_hdr.idnMax > 0) /* dense numbers */ 4427 { 4428 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR), 4429 orig_sym_hdr.cbDnOffset, 4430 "Dense numbers"); 4431 4432 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax); 4433 } 4434 4435 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */ 4436 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR), 4437 orig_sym_hdr.cbOptOffset, 4438 "Optimizer symbols"); 4439 4440 4441 4442 /* Abort if the symbol table is not last. */ 4443 if (max_file_offset != (unsigned long) stat_buf.st_size) 4444 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld", 4445 max_file_offset, 4446 (long) stat_buf.st_size); 4447 4448 4449 /* If the first original file descriptor is a dummy which the assembler 4450 put out, but there are no symbols in it, skip it now. */ 4451 if (orig_sym_hdr.ifdMax > 1 4452 && orig_files->csym == 2 4453 && orig_files->caux == 0) 4454 { 4455 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss); 4456 char *suffix = strrchr (filename, '.'); 4457 4458 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0) 4459 delete_ifd = 1; 4460 } 4461 4462 4463 /* Create array to map original file numbers to the new file numbers 4464 (in case there are duplicate filenames, we collapse them into one 4465 file section, the MIPS assembler may or may not collapse them). */ 4466 4467 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax); 4468 4469 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4470 { 4471 FDR *fd_ptr = ORIG_FILES (fd); 4472 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4473 4474 /* file support itself. */ 4475 add_file (filename, filename + strlen (filename)); 4476 remap_file_number[fd] = cur_file_ptr->file_index; 4477 } 4478 4479 if (delete_ifd > 0) /* just in case */ 4480 remap_file_number[0] = remap_file_number[1]; 4481 4482 4483 /* Loop, adding each of the external symbols. These must be in 4484 order or otherwise we would have to change the relocation 4485 entries. We don't just call add_bytes, because we need to have 4486 the names put into the external hash table. We set the type to 4487 'void' for now, and parse_def will fill in the correct type if it 4488 is in the symbol table. We must add the external symbols before 4489 the locals, since the locals do lookups against the externals. */ 4490 4491 if (debug) 4492 fprintf (stderr, "\tehash\n"); 4493 4494 for (es = 0; es < orig_sym_hdr.iextMax; es++) 4495 { 4496 EXTR *eptr = orig_ext_syms + es; 4497 int ifd = eptr->ifd; 4498 4499 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax) 4500 ? remap_file_number[ ifd ] : ifd ); 4501 } 4502 4503 4504 /* For each of the files in the object file, copy the symbols, and such 4505 into the varrays for the new object file. */ 4506 4507 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++) 4508 { 4509 FDR *fd_ptr = ORIG_FILES (fd); 4510 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss); 4511 SYMR *sym_start; 4512 SYMR *sym; 4513 SYMR *sym_end_p1; 4514 PDR *proc_start; 4515 PDR *proc; 4516 PDR *proc_end_p1; 4517 4518 /* file support itself. */ 4519 add_file (filename, filename + strlen (filename)); 4520 cur_file_ptr->orig_fdr = fd_ptr; 4521 4522 /* Copy stuff that's just passed through (such as line #'s) */ 4523 cur_file_ptr->fdr.adr = fd_ptr->adr; 4524 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase; 4525 cur_file_ptr->fdr.cline = fd_ptr->cline; 4526 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase; 4527 cur_file_ptr->fdr.crfd = fd_ptr->crfd; 4528 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset; 4529 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine; 4530 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge; 4531 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin; 4532 cur_file_ptr->fdr.glevel = fd_ptr->glevel; 4533 4534 if (debug) 4535 fprintf (stderr, "\thash\tstart, filename %s\n", filename); 4536 4537 /* For each of the static and global symbols defined, add them 4538 to the hash table of original symbols, so we can look up 4539 their values. */ 4540 4541 sym_start = ORIG_LSYMS (fd_ptr->isymBase); 4542 sym_end_p1 = sym_start + fd_ptr->csym; 4543 for (sym = sym_start; sym < sym_end_p1; sym++) 4544 { 4545 switch ((st_t) sym->st) 4546 { 4547 default: 4548 break; 4549 4550 case st_Global: 4551 case st_Static: 4552 case st_Label: 4553 case st_Proc: 4554 case st_StaticProc: 4555 { 4556 auto symint_t hash_index; 4557 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4558 Size_t len = strlen (str); 4559 shash_t *shash_ptr = hash_string (str, 4560 (Ptrdiff_t) len, 4561 &orig_str_hash[0], 4562 &hash_index); 4563 4564 if (shash_ptr != (shash_t *) 0) 4565 error ("internal error, %s is already in original symbol table", str); 4566 4567 else 4568 { 4569 shash_ptr = allocate_shash (); 4570 shash_ptr->next = orig_str_hash[hash_index]; 4571 orig_str_hash[hash_index] = shash_ptr; 4572 4573 shash_ptr->len = len; 4574 shash_ptr->indx = indexNil; 4575 shash_ptr->string = str; 4576 shash_ptr->sym_ptr = sym; 4577 } 4578 } 4579 break; 4580 4581 case st_End: 4582 if ((sc_t) sym->sc == sc_Text) 4583 { 4584 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss); 4585 4586 if (*str != '\0') 4587 { 4588 Size_t len = strlen (str); 4589 shash_t *shash_ptr = hash_string (str, 4590 (Ptrdiff_t) len, 4591 &orig_str_hash[0], 4592 (symint_t *) 0); 4593 4594 if (shash_ptr != (shash_t *) 0) 4595 shash_ptr->end_ptr = sym; 4596 } 4597 } 4598 break; 4599 4600 } 4601 } 4602 4603 if (debug) 4604 { 4605 fprintf (stderr, "\thash\tdone, filename %s\n", filename); 4606 fprintf (stderr, "\tproc\tstart, filename %s\n", filename); 4607 } 4608 4609 /* Go through each of the procedures in this file, and add the 4610 procedure pointer to the hash entry for the given name. */ 4611 4612 proc_start = ORIG_PROCS (fd_ptr->ipdFirst); 4613 proc_end_p1 = proc_start + fd_ptr->cpd; 4614 for (proc = proc_start; proc < proc_end_p1; proc++) 4615 { 4616 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym); 4617 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss); 4618 Size_t len = strlen (str); 4619 shash_t *shash_ptr = hash_string (str, 4620 (Ptrdiff_t) len, 4621 &orig_str_hash[0], 4622 (symint_t *) 0); 4623 4624 if (shash_ptr == (shash_t *) 0) 4625 error ("internal error, function %s is not in original symbol table", str); 4626 4627 else 4628 shash_ptr->proc_ptr = proc; 4629 } 4630 4631 if (debug) 4632 fprintf (stderr, "\tproc\tdone, filename %s\n", filename); 4633 4634 } 4635 cur_file_ptr = first_file; 4636 4637 4638 /* Copy all of the object file up to the symbol table. Originally 4639 we were going to use ftruncate, but that doesn't seem to work 4640 on Ultrix 3.1.... */ 4641 4642 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0) 4643 pfatal_with_name (obj_in_name); 4644 4645 if (fseek (object_stream, (long) 0, SEEK_SET) != 0) 4646 pfatal_with_name (object_name); 4647 4648 for (remaining = orig_file_header.f_symptr; 4649 remaining > 0; 4650 remaining -= num_write) 4651 { 4652 num_write 4653 = (remaining <= (int) sizeof (buffer)) 4654 ? remaining : (int) sizeof (buffer); 4655 sys_read = fread (buffer, 1, num_write, obj_in_stream); 4656 if (sys_read <= 0) 4657 pfatal_with_name (obj_in_name); 4658 4659 else if (sys_read != num_write) 4660 fatal ("wanted to read %d bytes from %s, system returned %d", 4661 num_write, 4662 obj_in_name, 4663 sys_read); 4664 4665 sys_write = fwrite (buffer, 1, num_write, object_stream); 4666 if (sys_write <= 0) 4667 pfatal_with_name (object_name); 4668 4669 else if (sys_write != num_write) 4670 fatal ("wrote %d bytes to %s, system returned %d", 4671 num_write, 4672 object_name, 4673 sys_write); 4674 } 4675} 4676 4677 4678/* Ye olde main program. */ 4679 4680extern int main (int, char **); 4681 4682int 4683main (int argc, char **argv) 4684{ 4685 int iflag = 0; 4686 char *p = strrchr (argv[0], '/'); 4687 char *num_end; 4688 int option; 4689 int i; 4690 4691 progname = (p != 0) ? p+1 : argv[0]; 4692 4693 (void) signal (SIGSEGV, catch_signal); 4694 (void) signal (SIGBUS, catch_signal); 4695 (void) signal (SIGABRT, catch_signal); 4696 4697#if !defined(__SABER__) && !defined(lint) 4698 if (sizeof (efdr_t) > PAGE_USIZE) 4699 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d", 4700 (int) sizeof (efdr_t), 4701 (int) PAGE_USIZE); 4702 4703 if (sizeof (page_t) != PAGE_USIZE) 4704 fatal ("page_t has a sizeof %d bytes, when it should be %d", 4705 (int) sizeof (page_t), 4706 (int) PAGE_USIZE); 4707 4708#endif 4709 4710 alloc_counts[ alloc_type_none ].alloc_name = "none"; 4711 alloc_counts[ alloc_type_scope ].alloc_name = "scope"; 4712 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks"; 4713 alloc_counts[ alloc_type_shash ].alloc_name = "shash"; 4714 alloc_counts[ alloc_type_thash ].alloc_name = "thash"; 4715 alloc_counts[ alloc_type_tag ].alloc_name = "tag"; 4716 alloc_counts[ alloc_type_forward ].alloc_name = "forward"; 4717 alloc_counts[ alloc_type_thead ].alloc_name = "thead"; 4718 alloc_counts[ alloc_type_varray ].alloc_name = "varray"; 4719 4720 int_type_info = type_info_init; 4721 int_type_info.basic_type = bt_Int; 4722 4723 void_type_info = type_info_init; 4724 void_type_info.basic_type = bt_Void; 4725 4726 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1) 4727 switch (option) 4728 { 4729 default: 4730 had_errors++; 4731 break; 4732 4733 case 'd': 4734 debug = strtol (optarg, &num_end, 0); 4735 if ((unsigned) debug > 4 || num_end == optarg) 4736 had_errors++; 4737 4738 break; 4739 4740 case 'I': 4741 if (rename_output || obj_in_name != (char *) 0) 4742 had_errors++; 4743 else 4744 rename_output = 1; 4745 4746 /* Fall through to 'i' case. */ 4747 4748 case 'i': 4749 if (obj_in_name == (char *) 0) 4750 { 4751 obj_in_name = optarg; 4752 iflag++; 4753 } 4754 else 4755 had_errors++; 4756 break; 4757 4758 case 'o': 4759 if (object_name == (char *) 0) 4760 object_name = optarg; 4761 else 4762 had_errors++; 4763 break; 4764 4765 case 'v': 4766 verbose++; 4767 break; 4768 4769 case 'V': 4770 version++; 4771 break; 4772 } 4773 4774 if (version) 4775 { 4776 printf (_("mips-tfile (GCC) %s\n"), version_string); 4777 fputs ("Copyright (C) 2004 Free Software Foundation, Inc.\n", stdout); 4778 fputs (_("This is free software; see the source for copying conditions. There is NO\n\ 4779warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"), 4780 stdout); 4781 exit (0); 4782 } 4783 4784 if (obj_in_name == (char *) 0 && optind <= argc - 2) 4785 obj_in_name = argv[--argc]; 4786 4787 if (object_name == (char *) 0 && optind <= argc - 2) 4788 object_name = argv[--argc]; 4789 4790 /* If there is an output name, but no input name use 4791 the same file for both, deleting the name between 4792 opening it for input and opening it for output. */ 4793 if (obj_in_name == (char *) 0 && object_name != (char *) 0) 4794 { 4795 obj_in_name = object_name; 4796 delete_input = 1; 4797 } 4798 4799 if (optind != argc - 1) 4800 had_errors++; 4801 4802 if (verbose || had_errors) 4803 { 4804 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string); 4805#ifdef TARGET_VERSION 4806 TARGET_VERSION; 4807#endif 4808 fputc ('\n', stderr); 4809 } 4810 4811 if (object_name == (char *) 0 || had_errors) 4812 { 4813 fprintf (stderr, _("Calling Sequence:\n")); 4814 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4815 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n")); 4816 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n")); 4817 fprintf (stderr, "\n"); 4818 fprintf (stderr, _("Debug levels are:\n")); 4819 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n")); 4820 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n")); 4821 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n")); 4822 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n")); 4823 return 1; 4824 } 4825 4826 if (obj_in_name == (char *) 0) 4827 obj_in_name = object_name; 4828 4829 if (rename_output && rename (object_name, obj_in_name) != 0) 4830 { 4831 char *buffer = (char *) allocate_multiple_pages (4); 4832 int len; 4833 int len2; 4834 int in_fd; 4835 int out_fd; 4836 4837 /* Rename failed, copy input file */ 4838 in_fd = open (object_name, O_RDONLY, 0666); 4839 if (in_fd < 0) 4840 pfatal_with_name (object_name); 4841 4842 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666); 4843 if (out_fd < 0) 4844 pfatal_with_name (obj_in_name); 4845 4846 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0) 4847 { 4848 len2 = write (out_fd, buffer, len); 4849 if (len2 < 0) 4850 pfatal_with_name (object_name); 4851 4852 if (len != len2) 4853 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len); 4854 } 4855 4856 free_multiple_pages ((page_t *) buffer, 4); 4857 4858 if (len < 0) 4859 pfatal_with_name (object_name); 4860 4861 if (close (in_fd) < 0) 4862 pfatal_with_name (object_name); 4863 4864 if (close (out_fd) < 0) 4865 pfatal_with_name (obj_in_name); 4866 } 4867 4868 /* Must open input before output, since the output may be the same file, and 4869 we need to get the input handle before truncating it. */ 4870 obj_in_stream = fopen (obj_in_name, "r"); 4871 if (obj_in_stream == (FILE *) 0) 4872 pfatal_with_name (obj_in_name); 4873 4874 if (delete_input && unlink (obj_in_name) != 0) 4875 pfatal_with_name (obj_in_name); 4876 4877 object_stream = fopen (object_name, "w"); 4878 if (object_stream == (FILE *) 0) 4879 pfatal_with_name (object_name); 4880 4881 if (strcmp (argv[optind], "-") != 0) 4882 { 4883 input_name = argv[optind]; 4884 if (freopen (argv[optind], "r", stdin) != stdin) 4885 pfatal_with_name (argv[optind]); 4886 } 4887 4888 copy_object (); /* scan & copy object file */ 4889 parse_input (); /* scan all of input */ 4890 4891 update_headers (); /* write out tfile */ 4892 write_object (); 4893 4894 if (debug) 4895 { 4896 fprintf (stderr, "\n\tAllocation summary:\n\n"); 4897 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++) 4898 if (alloc_counts[i].total_alloc) 4899 { 4900 fprintf (stderr, 4901 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n", 4902 alloc_counts[i].alloc_name, 4903 alloc_counts[i].total_alloc, 4904 alloc_counts[i].total_free, 4905 alloc_counts[i].total_pages); 4906 } 4907 } 4908 4909 return (had_errors) ? 1 : 0; 4910} 4911 4912 4913/* Catch a signal and exit without dumping core. */ 4914 4915STATIC void 4916catch_signal (int signum) 4917{ 4918 (void) signal (signum, SIG_DFL); /* just in case... */ 4919 fatal ("%s", strsignal (signum)); 4920} 4921 4922/* Print a fatal error message. NAME is the text. 4923 Also include a system error message based on `errno'. */ 4924 4925void 4926pfatal_with_name (const char *msg) 4927{ 4928 int save_errno = errno; /* just in case.... */ 4929 if (line_number > 0) 4930 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 4931 else 4932 fprintf (stderr, "%s:", progname); 4933 4934 errno = save_errno; 4935 if (errno == 0) 4936 fprintf (stderr, "[errno = 0] %s\n", msg); 4937 else 4938 perror (msg); 4939 4940 exit (1); 4941} 4942 4943 4944/* Procedure to abort with an out of bounds error message. It has 4945 type int, so it can be used with an ?: expression within the 4946 ORIG_xxx macros, but the function never returns. */ 4947 4948static int 4949out_of_bounds (symint_t indx, /* index that is out of bounds */ 4950 symint_t max, /* maximum index */ 4951 const char *str, /* string to print out */ 4952 int prog_line) /* line number within mips-tfile.c */ 4953{ 4954 if (indx < max) /* just in case */ 4955 return 0; 4956 4957 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n", 4958 progname, input_name, line_number, indx, str, max, prog_line); 4959 4960 exit (1); 4961 return 0; /* turn off warning messages */ 4962} 4963 4964 4965/* Allocate a cluster of pages. USE_MALLOC says that malloc does not 4966 like sbrk's behind its back (or sbrk isn't available). If we use 4967 sbrk, we assume it gives us zeroed pages. */ 4968 4969#ifndef MALLOC_CHECK 4970#ifdef USE_MALLOC 4971 4972STATIC page_t * 4973allocate_cluster (Size_t npages) 4974{ 4975 page_t *value = xcalloc (npages, PAGE_USIZE); 4976 4977 if (debug > 3) 4978 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); 4979 4980 return value; 4981} 4982 4983#else /* USE_MALLOC */ 4984 4985STATIC page_t * 4986allocate_cluster (Size_t npages) 4987{ 4988 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */ 4989 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1); 4990 4991 if (offset != 0) /* align to a page boundary */ 4992 { 4993 if (sbrk (PAGE_USIZE - offset) == (char *)-1) 4994 pfatal_with_name ("allocate_cluster"); 4995 4996 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset); 4997 } 4998 4999 if (sbrk (npages * PAGE_USIZE) == (char *) -1) 5000 pfatal_with_name ("allocate_cluster"); 5001 5002 if (debug > 3) 5003 fprintf (stderr, "\talloc\tnpages = %lu, value = " HOST_PTR_PRINTF "\n", 5004 (unsigned long) npages, (void *) ptr); 5005 5006 return ptr; 5007} 5008 5009#endif /* USE_MALLOC */ 5010 5011 5012static page_t *cluster_ptr = NULL; 5013static unsigned pages_left = 0; 5014 5015#endif /* MALLOC_CHECK */ 5016 5017 5018/* Allocate some pages (which is initialized to 0). */ 5019 5020STATIC page_t * 5021allocate_multiple_pages (Size_t npages) 5022{ 5023#ifndef MALLOC_CHECK 5024 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES) 5025 { 5026 pages_left = MAX_CLUSTER_PAGES; 5027 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5028 } 5029 5030 if (npages <= pages_left) 5031 { 5032 page_t *ptr = cluster_ptr; 5033 cluster_ptr += npages; 5034 pages_left -= npages; 5035 return ptr; 5036 } 5037 5038 return allocate_cluster (npages); 5039 5040#else /* MALLOC_CHECK */ 5041 return xcalloc (npages, PAGE_SIZE); 5042 5043#endif /* MALLOC_CHECK */ 5044} 5045 5046 5047/* Release some pages. */ 5048 5049STATIC void 5050free_multiple_pages (page_t *page_ptr, Size_t npages) 5051{ 5052#ifndef MALLOC_CHECK 5053 if (pages_left == 0) 5054 { 5055 cluster_ptr = page_ptr; 5056 pages_left = npages; 5057 } 5058 5059 else if ((page_ptr + npages) == cluster_ptr) 5060 { 5061 cluster_ptr -= npages; 5062 pages_left += npages; 5063 } 5064 5065 /* otherwise the page is not freed. If more than call is 5066 done, we probably should worry about it, but at present, 5067 the free pages is done right after an allocate. */ 5068 5069#else /* MALLOC_CHECK */ 5070 free (page_ptr); 5071 5072#endif /* MALLOC_CHECK */ 5073} 5074 5075 5076/* Allocate one page (which is initialized to 0). */ 5077 5078STATIC page_t * 5079allocate_page (void) 5080{ 5081#ifndef MALLOC_CHECK 5082 if (pages_left == 0) 5083 { 5084 pages_left = MAX_CLUSTER_PAGES; 5085 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES); 5086 } 5087 5088 pages_left--; 5089 return cluster_ptr++; 5090 5091#else /* MALLOC_CHECK */ 5092 return xcalloc (1, PAGE_SIZE); 5093 5094#endif /* MALLOC_CHECK */ 5095} 5096 5097 5098/* Allocate scoping information. */ 5099 5100STATIC scope_t * 5101allocate_scope (void) 5102{ 5103 scope_t *ptr; 5104 static scope_t initial_scope; 5105 5106#ifndef MALLOC_CHECK 5107 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5108 if (ptr != (scope_t *) 0) 5109 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free; 5110 5111 else 5112 { 5113 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated; 5114 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page; 5115 5116 if (unallocated == 0) 5117 { 5118 unallocated = PAGE_SIZE / sizeof (scope_t); 5119 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page (); 5120 alloc_counts[ (int) alloc_type_scope ].total_pages++; 5121 } 5122 5123 ptr = &cur_page->scope[ --unallocated ]; 5124 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated; 5125 } 5126 5127#else 5128 ptr = xmalloc (sizeof (scope_t)); 5129 5130#endif 5131 5132 alloc_counts[ (int) alloc_type_scope ].total_alloc++; 5133 *ptr = initial_scope; 5134 return ptr; 5135} 5136 5137/* Free scoping information. */ 5138 5139STATIC void 5140free_scope (scope_t *ptr) 5141{ 5142 alloc_counts[ (int) alloc_type_scope ].total_free++; 5143 5144#ifndef MALLOC_CHECK 5145 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope; 5146 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr; 5147 5148#else 5149 free (ptr); 5150#endif 5151 5152} 5153 5154 5155/* Allocate links for pages in a virtual array. */ 5156 5157STATIC vlinks_t * 5158allocate_vlinks (void) 5159{ 5160 vlinks_t *ptr; 5161 static vlinks_t initial_vlinks; 5162 5163#ifndef MALLOC_CHECK 5164 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated; 5165 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page; 5166 5167 if (unallocated == 0) 5168 { 5169 unallocated = PAGE_SIZE / sizeof (vlinks_t); 5170 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page (); 5171 alloc_counts[ (int) alloc_type_vlinks ].total_pages++; 5172 } 5173 5174 ptr = &cur_page->vlinks[ --unallocated ]; 5175 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated; 5176 5177#else 5178 ptr = xmalloc (sizeof (vlinks_t)); 5179 5180#endif 5181 5182 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++; 5183 *ptr = initial_vlinks; 5184 return ptr; 5185} 5186 5187 5188/* Allocate string hash buckets. */ 5189 5190STATIC shash_t * 5191allocate_shash (void) 5192{ 5193 shash_t *ptr; 5194 static shash_t initial_shash; 5195 5196#ifndef MALLOC_CHECK 5197 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated; 5198 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page; 5199 5200 if (unallocated == 0) 5201 { 5202 unallocated = PAGE_SIZE / sizeof (shash_t); 5203 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page (); 5204 alloc_counts[ (int) alloc_type_shash ].total_pages++; 5205 } 5206 5207 ptr = &cur_page->shash[ --unallocated ]; 5208 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated; 5209 5210#else 5211 ptr = xmalloc (sizeof (shash_t)); 5212 5213#endif 5214 5215 alloc_counts[ (int) alloc_type_shash ].total_alloc++; 5216 *ptr = initial_shash; 5217 return ptr; 5218} 5219 5220 5221/* Allocate type hash buckets. */ 5222 5223STATIC thash_t * 5224allocate_thash (void) 5225{ 5226 thash_t *ptr; 5227 static thash_t initial_thash; 5228 5229#ifndef MALLOC_CHECK 5230 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated; 5231 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page; 5232 5233 if (unallocated == 0) 5234 { 5235 unallocated = PAGE_SIZE / sizeof (thash_t); 5236 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page (); 5237 alloc_counts[ (int) alloc_type_thash ].total_pages++; 5238 } 5239 5240 ptr = &cur_page->thash[ --unallocated ]; 5241 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated; 5242 5243#else 5244 ptr = xmalloc (sizeof (thash_t)); 5245 5246#endif 5247 5248 alloc_counts[ (int) alloc_type_thash ].total_alloc++; 5249 *ptr = initial_thash; 5250 return ptr; 5251} 5252 5253 5254/* Allocate structure, union, or enum tag information. */ 5255 5256STATIC tag_t * 5257allocate_tag (void) 5258{ 5259 tag_t *ptr; 5260 static tag_t initial_tag; 5261 5262#ifndef MALLOC_CHECK 5263 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5264 if (ptr != (tag_t *) 0) 5265 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free; 5266 5267 else 5268 { 5269 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated; 5270 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page; 5271 5272 if (unallocated == 0) 5273 { 5274 unallocated = PAGE_SIZE / sizeof (tag_t); 5275 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page (); 5276 alloc_counts[ (int) alloc_type_tag ].total_pages++; 5277 } 5278 5279 ptr = &cur_page->tag[ --unallocated ]; 5280 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated; 5281 } 5282 5283#else 5284 ptr = xmalloc (sizeof (tag_t)); 5285 5286#endif 5287 5288 alloc_counts[ (int) alloc_type_tag ].total_alloc++; 5289 *ptr = initial_tag; 5290 return ptr; 5291} 5292 5293/* Free scoping information. */ 5294 5295STATIC void 5296free_tag (tag_t *ptr) 5297{ 5298 alloc_counts[ (int) alloc_type_tag ].total_free++; 5299 5300#ifndef MALLOC_CHECK 5301 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag; 5302 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr; 5303 5304#else 5305 free (ptr); 5306#endif 5307 5308} 5309 5310 5311/* Allocate forward reference to a yet unknown tag. */ 5312 5313STATIC forward_t * 5314allocate_forward (void) 5315{ 5316 forward_t *ptr; 5317 static forward_t initial_forward; 5318 5319#ifndef MALLOC_CHECK 5320 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5321 if (ptr != (forward_t *) 0) 5322 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free; 5323 5324 else 5325 { 5326 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated; 5327 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page; 5328 5329 if (unallocated == 0) 5330 { 5331 unallocated = PAGE_SIZE / sizeof (forward_t); 5332 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page (); 5333 alloc_counts[ (int) alloc_type_forward ].total_pages++; 5334 } 5335 5336 ptr = &cur_page->forward[ --unallocated ]; 5337 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated; 5338 } 5339 5340#else 5341 ptr = xmalloc (sizeof (forward_t)); 5342 5343#endif 5344 5345 alloc_counts[ (int) alloc_type_forward ].total_alloc++; 5346 *ptr = initial_forward; 5347 return ptr; 5348} 5349 5350/* Free scoping information. */ 5351 5352STATIC void 5353free_forward (forward_t *ptr) 5354{ 5355 alloc_counts[ (int) alloc_type_forward ].total_free++; 5356 5357#ifndef MALLOC_CHECK 5358 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward; 5359 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr; 5360 5361#else 5362 free (ptr); 5363#endif 5364 5365} 5366 5367 5368/* Allocate head of type hash list. */ 5369 5370STATIC thead_t * 5371allocate_thead (void) 5372{ 5373 thead_t *ptr; 5374 static thead_t initial_thead; 5375 5376#ifndef MALLOC_CHECK 5377 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5378 if (ptr != (thead_t *) 0) 5379 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free; 5380 5381 else 5382 { 5383 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated; 5384 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page; 5385 5386 if (unallocated == 0) 5387 { 5388 unallocated = PAGE_SIZE / sizeof (thead_t); 5389 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page (); 5390 alloc_counts[ (int) alloc_type_thead ].total_pages++; 5391 } 5392 5393 ptr = &cur_page->thead[ --unallocated ]; 5394 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated; 5395 } 5396 5397#else 5398 ptr = xmalloc (sizeof (thead_t)); 5399 5400#endif 5401 5402 alloc_counts[ (int) alloc_type_thead ].total_alloc++; 5403 *ptr = initial_thead; 5404 return ptr; 5405} 5406 5407/* Free scoping information. */ 5408 5409STATIC void 5410free_thead (thead_t *ptr) 5411{ 5412 alloc_counts[ (int) alloc_type_thead ].total_free++; 5413 5414#ifndef MALLOC_CHECK 5415 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead; 5416 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr; 5417 5418#else 5419 free (ptr); 5420#endif 5421 5422} 5423 5424#endif /* MIPS_DEBUGGING_INFO */ 5425 5426 5427/* Output an error message and exit. */ 5428 5429void 5430fatal (const char *format, ...) 5431{ 5432 va_list ap; 5433 5434 va_start (ap, format); 5435 5436 if (line_number > 0) 5437 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5438 else 5439 fprintf (stderr, "%s:", progname); 5440 5441 vfprintf (stderr, format, ap); 5442 va_end (ap); 5443 fprintf (stderr, "\n"); 5444 if (line_number > 0) 5445 fprintf (stderr, "line:\t%s\n", cur_line_start); 5446 5447 saber_stop (); 5448 exit (1); 5449} 5450 5451void 5452error (const char *format, ...) 5453{ 5454 va_list ap; 5455 5456 va_start (ap, format); 5457 5458 if (line_number > 0) 5459 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number); 5460 else 5461 fprintf (stderr, "%s:", progname); 5462 5463 vfprintf (stderr, format, ap); 5464 fprintf (stderr, "\n"); 5465 if (line_number > 0) 5466 fprintf (stderr, "line:\t%s\n", cur_line_start); 5467 5468 had_errors++; 5469 va_end (ap); 5470 5471 saber_stop (); 5472} 5473 5474/* More 'friendly' abort that prints the line and file. 5475 config.h can #define abort fancy_abort if you like that sort of thing. */ 5476 5477void 5478fancy_abort (void) 5479{ 5480 fatal ("internal abort"); 5481} 5482 5483 5484/* When `malloc.c' is compiled with `rcheck' defined, 5485 it calls this function to report clobberage. */ 5486 5487void 5488botch (const char *s) 5489{ 5490 fatal ("%s", s); 5491} 5492