| 1 | /* ECOFF debugging support. |
| 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
| 3 | 2003, 2004, 2005 |
| 4 | Free Software Foundation, Inc. |
| 5 | Contributed by Cygnus Support. |
| 6 | This file was put together by Ian Lance Taylor <ian@cygnus.com>. A |
| 7 | good deal of it comes directly from mips-tfile.c, by Michael |
| 8 | Meissner <meissner@osf.org>. |
| 9 | |
| 10 | This file is part of GAS. |
| 11 | |
| 12 | GAS is free software; you can redistribute it and/or modify |
| 13 | it under the terms of the GNU General Public License as published by |
| 14 | the Free Software Foundation; either version 2, or (at your option) |
| 15 | any later version. |
| 16 | |
| 17 | GAS is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU General Public License |
| 23 | along with GAS; see the file COPYING. If not, write to the Free |
| 24 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 25 | 02110-1301, USA. */ |
| 26 | |
| 27 | #include "as.h" |
| 28 | |
| 29 | /* This file is compiled conditionally for those targets which use |
| 30 | ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha |
| 31 | ECOFF). */ |
| 32 | |
| 33 | #include "ecoff.h" |
| 34 | |
| 35 | #ifdef ECOFF_DEBUGGING |
| 36 | |
| 37 | #include "coff/internal.h" |
| 38 | #include "coff/symconst.h" |
| 39 | #include "aout/stab_gnu.h" |
| 40 | |
| 41 | #include "safe-ctype.h" |
| 42 | |
| 43 | /* Why isn't this in coff/sym.h? */ |
| 44 | #define ST_RFDESCAPE 0xfff |
| 45 | |
| 46 | /* This file constructs the information used by the ECOFF debugging |
| 47 | format. It just builds a large block of data. |
| 48 | |
| 49 | We support both ECOFF style debugging and stabs debugging (the |
| 50 | stabs symbols are encapsulated in ECOFF symbols). This should let |
| 51 | us handle anything the compiler might throw at us. */ |
| 52 | |
| 53 | /* Here is a brief description of the MIPS ECOFF symbol table, by |
| 54 | Michael Meissner. The MIPS symbol table has the following pieces: |
| 55 | |
| 56 | Symbolic Header |
| 57 | | |
| 58 | +-- Auxiliary Symbols |
| 59 | | |
| 60 | +-- Dense number table |
| 61 | | |
| 62 | +-- Optimizer Symbols |
| 63 | | |
| 64 | +-- External Strings |
| 65 | | |
| 66 | +-- External Symbols |
| 67 | | |
| 68 | +-- Relative file descriptors |
| 69 | | |
| 70 | +-- File table |
| 71 | | |
| 72 | +-- Procedure table |
| 73 | | |
| 74 | +-- Line number table |
| 75 | | |
| 76 | +-- Local Strings |
| 77 | | |
| 78 | +-- Local Symbols |
| 79 | |
| 80 | The symbolic header points to each of the other tables, and also |
| 81 | contains the number of entries. It also contains a magic number |
| 82 | and MIPS compiler version number, such as 2.0. |
| 83 | |
| 84 | The auxiliary table is a series of 32 bit integers, that are |
| 85 | referenced as needed from the local symbol table. Unlike standard |
| 86 | COFF, the aux. information does not follow the symbol that uses |
| 87 | it, but rather is a separate table. In theory, this would allow |
| 88 | the MIPS compilers to collapse duplicate aux. entries, but I've not |
| 89 | noticed this happening with the 1.31 compiler suite. The different |
| 90 | types of aux. entries are: |
| 91 | |
| 92 | 1) dnLow: Low bound on array dimension. |
| 93 | |
| 94 | 2) dnHigh: High bound on array dimension. |
| 95 | |
| 96 | 3) isym: Index to the local symbol which is the start of the |
| 97 | function for the end of function first aux. entry. |
| 98 | |
| 99 | 4) width: Width of structures and bitfields. |
| 100 | |
| 101 | 5) count: Count of ranges for variant part. |
| 102 | |
| 103 | 6) rndx: A relative index into the symbol table. The relative |
| 104 | index field has two parts: rfd which is a pointer into the |
| 105 | relative file index table or ST_RFDESCAPE which says the next |
| 106 | aux. entry is the file number, and index: which is the pointer |
| 107 | into the local symbol within a given file table. This is for |
| 108 | things like references to types defined in another file. |
| 109 | |
| 110 | 7) Type information: This is like the COFF type bits, except it |
| 111 | is 32 bits instead of 16; they still have room to add new |
| 112 | basic types; and they can handle more than 6 levels of array, |
| 113 | pointer, function, etc. Each type information field contains |
| 114 | the following structure members: |
| 115 | |
| 116 | a) fBitfield: a bit that says this is a bitfield, and the |
| 117 | size in bits follows as the next aux. entry. |
| 118 | |
| 119 | b) continued: a bit that says the next aux. entry is a |
| 120 | continuation of the current type information (in case |
| 121 | there are more than 6 levels of array/ptr/function). |
| 122 | |
| 123 | c) bt: an integer containing the base type before adding |
| 124 | array, pointer, function, etc. qualifiers. The |
| 125 | current base types that I have documentation for are: |
| 126 | |
| 127 | btNil -- undefined |
| 128 | btAdr -- address - integer same size as ptr |
| 129 | btChar -- character |
| 130 | btUChar -- unsigned character |
| 131 | btShort -- short |
| 132 | btUShort -- unsigned short |
| 133 | btInt -- int |
| 134 | btUInt -- unsigned int |
| 135 | btLong -- long |
| 136 | btULong -- unsigned long |
| 137 | btFloat -- float (real) |
| 138 | btDouble -- Double (real) |
| 139 | btStruct -- Structure (Record) |
| 140 | btUnion -- Union (variant) |
| 141 | btEnum -- Enumerated |
| 142 | btTypedef -- defined via a typedef isymRef |
| 143 | btRange -- subrange of int |
| 144 | btSet -- pascal sets |
| 145 | btComplex -- fortran complex |
| 146 | btDComplex -- fortran double complex |
| 147 | btIndirect -- forward or unnamed typedef |
| 148 | btFixedDec -- Fixed Decimal |
| 149 | btFloatDec -- Float Decimal |
| 150 | btString -- Varying Length Character String |
| 151 | btBit -- Aligned Bit String |
| 152 | btPicture -- Picture |
| 153 | btVoid -- Void (MIPS cc revision >= 2.00) |
| 154 | |
| 155 | d) tq0 - tq5: type qualifier fields as needed. The |
| 156 | current type qualifier fields I have documentation for |
| 157 | are: |
| 158 | |
| 159 | tqNil -- no more qualifiers |
| 160 | tqPtr -- pointer |
| 161 | tqProc -- procedure |
| 162 | tqArray -- array |
| 163 | tqFar -- 8086 far pointers |
| 164 | tqVol -- volatile |
| 165 | |
| 166 | The dense number table is used in the front ends, and disappears by |
| 167 | the time the .o is created. |
| 168 | |
| 169 | With the 1.31 compiler suite, the optimization symbols don't seem |
| 170 | to be used as far as I can tell. |
| 171 | |
| 172 | The linker is the first entity that creates the relative file |
| 173 | descriptor table, and I believe it is used so that the individual |
| 174 | file table pointers don't have to be rewritten when the objects are |
| 175 | merged together into the program file. |
| 176 | |
| 177 | Unlike COFF, the basic symbol & string tables are split into |
| 178 | external and local symbols/strings. The relocation information |
| 179 | only goes off of the external symbol table, and the debug |
| 180 | information only goes off of the internal symbol table. The |
| 181 | external symbols can have links to an appropriate file index and |
| 182 | symbol within the file to give it the appropriate type information. |
| 183 | Because of this, the external symbols are actually larger than the |
| 184 | internal symbols (to contain the link information), and contain the |
| 185 | local symbol structure as a member, though this member is not the |
| 186 | first member of the external symbol structure (!). I suspect this |
| 187 | split is to make strip easier to deal with. |
| 188 | |
| 189 | Each file table has offsets for where the line numbers, local |
| 190 | strings, local symbols, and procedure table starts from within the |
| 191 | global tables, and the indexs are reset to 0 for each of those |
| 192 | tables for the file. |
| 193 | |
| 194 | The procedure table contains the binary equivalents of the .ent |
| 195 | (start of the function address), .frame (what register is the |
| 196 | virtual frame pointer, constant offset from the register to obtain |
| 197 | the VFP, and what register holds the return address), .mask/.fmask |
| 198 | (bitmask of saved registers, and where the first register is stored |
| 199 | relative to the VFP) assembler directives. It also contains the |
| 200 | low and high bounds of the line numbers if debugging is turned on. |
| 201 | |
| 202 | The line number table is a compressed form of the normal COFF line |
| 203 | table. Each line number entry is either 1 or 3 bytes long, and |
| 204 | contains a signed delta from the previous line, and an unsigned |
| 205 | count of the number of instructions this statement takes. |
| 206 | |
| 207 | The local symbol table contains the following fields: |
| 208 | |
| 209 | 1) iss: index to the local string table giving the name of the |
| 210 | symbol. |
| 211 | |
| 212 | 2) value: value of the symbol (address, register number, etc.). |
| 213 | |
| 214 | 3) st: symbol type. The current symbol types are: |
| 215 | |
| 216 | stNil -- Nuthin' special |
| 217 | stGlobal -- external symbol |
| 218 | stStatic -- static |
| 219 | stParam -- procedure argument |
| 220 | stLocal -- local variable |
| 221 | stLabel -- label |
| 222 | stProc -- External Procedure |
| 223 | stBlock -- beginning of block |
| 224 | stEnd -- end (of anything) |
| 225 | stMember -- member (of anything) |
| 226 | stTypedef -- type definition |
| 227 | stFile -- file name |
| 228 | stRegReloc -- register relocation |
| 229 | stForward -- forwarding address |
| 230 | stStaticProc -- Static procedure |
| 231 | stConstant -- const |
| 232 | |
| 233 | 4) sc: storage class. The current storage classes are: |
| 234 | |
| 235 | scText -- text symbol |
| 236 | scData -- initialized data symbol |
| 237 | scBss -- un-initialized data symbol |
| 238 | scRegister -- value of symbol is register number |
| 239 | scAbs -- value of symbol is absolute |
| 240 | scUndefined -- who knows? |
| 241 | scCdbLocal -- variable's value is IN se->va.?? |
| 242 | scBits -- this is a bit field |
| 243 | scCdbSystem -- value is IN debugger's address space |
| 244 | scRegImage -- register value saved on stack |
| 245 | scInfo -- symbol contains debugger information |
| 246 | scUserStruct -- addr in struct user for current process |
| 247 | scSData -- load time only small data |
| 248 | scSBss -- load time only small common |
| 249 | scRData -- load time only read only data |
| 250 | scVar -- Var parameter (fortranpascal) |
| 251 | scCommon -- common variable |
| 252 | scSCommon -- small common |
| 253 | scVarRegister -- Var parameter in a register |
| 254 | scVariant -- Variant record |
| 255 | scSUndefined -- small undefined(external) data |
| 256 | scInit -- .init section symbol |
| 257 | |
| 258 | 5) index: pointer to a local symbol or aux. entry. |
| 259 | |
| 260 | For the following program: |
| 261 | |
| 262 | #include <stdio.h> |
| 263 | |
| 264 | main(){ |
| 265 | printf("Hello World!\n"); |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | Mips-tdump produces the following information: |
| 270 | |
| 271 | Global file header: |
| 272 | magic number 0x162 |
| 273 | # sections 2 |
| 274 | timestamp 645311799, Wed Jun 13 17:16:39 1990 |
| 275 | symbolic header offset 284 |
| 276 | symbolic header size 96 |
| 277 | optional header 56 |
| 278 | flags 0x0 |
| 279 | |
| 280 | Symbolic header, magic number = 0x7009, vstamp = 1.31: |
| 281 | |
| 282 | Info Offset Number Bytes |
| 283 | ==== ====== ====== ===== |
| 284 | |
| 285 | Line numbers 380 4 4 [13] |
| 286 | Dense numbers 0 0 0 |
| 287 | Procedures Tables 384 1 52 |
| 288 | Local Symbols 436 16 192 |
| 289 | Optimization Symbols 0 0 0 |
| 290 | Auxiliary Symbols 628 39 156 |
| 291 | Local Strings 784 80 80 |
| 292 | External Strings 864 144 144 |
| 293 | File Tables 1008 2 144 |
| 294 | Relative Files 0 0 0 |
| 295 | External Symbols 1152 20 320 |
| 296 | |
| 297 | File #0, "hello2.c" |
| 298 | |
| 299 | Name index = 1 Readin = No |
| 300 | Merge = No Endian = LITTLE |
| 301 | Debug level = G2 Language = C |
| 302 | Adr = 0x00000000 |
| 303 | |
| 304 | Info Start Number Size Offset |
| 305 | ==== ===== ====== ==== ====== |
| 306 | Local strings 0 15 15 784 |
| 307 | Local symbols 0 6 72 436 |
| 308 | Line numbers 0 13 13 380 |
| 309 | Optimization symbols 0 0 0 0 |
| 310 | Procedures 0 1 52 384 |
| 311 | Auxiliary symbols 0 14 56 628 |
| 312 | Relative Files 0 0 0 0 |
| 313 | |
| 314 | There are 6 local symbols, starting at 436 |
| 315 | |
| 316 | Symbol# 0: "hello2.c" |
| 317 | End+1 symbol = 6 |
| 318 | String index = 1 |
| 319 | Storage class = Text Index = 6 |
| 320 | Symbol type = File Value = 0 |
| 321 | |
| 322 | Symbol# 1: "main" |
| 323 | End+1 symbol = 5 |
| 324 | Type = int |
| 325 | String index = 10 |
| 326 | Storage class = Text Index = 12 |
| 327 | Symbol type = Proc Value = 0 |
| 328 | |
| 329 | Symbol# 2: "" |
| 330 | End+1 symbol = 4 |
| 331 | String index = 0 |
| 332 | Storage class = Text Index = 4 |
| 333 | Symbol type = Block Value = 8 |
| 334 | |
| 335 | Symbol# 3: "" |
| 336 | First symbol = 2 |
| 337 | String index = 0 |
| 338 | Storage class = Text Index = 2 |
| 339 | Symbol type = End Value = 28 |
| 340 | |
| 341 | Symbol# 4: "main" |
| 342 | First symbol = 1 |
| 343 | String index = 10 |
| 344 | Storage class = Text Index = 1 |
| 345 | Symbol type = End Value = 52 |
| 346 | |
| 347 | Symbol# 5: "hello2.c" |
| 348 | First symbol = 0 |
| 349 | String index = 1 |
| 350 | Storage class = Text Index = 0 |
| 351 | Symbol type = End Value = 0 |
| 352 | |
| 353 | There are 14 auxiliary table entries, starting at 628. |
| 354 | |
| 355 | * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 356 | * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] |
| 357 | * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0] |
| 358 | * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0] |
| 359 | * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] |
| 360 | * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0] |
| 361 | * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0] |
| 362 | * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0] |
| 363 | * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0] |
| 364 | * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0] |
| 365 | * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0] |
| 366 | * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0] |
| 367 | #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0] |
| 368 | #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0] |
| 369 | |
| 370 | There are 1 procedure descriptor entries, starting at 0. |
| 371 | |
| 372 | Procedure descriptor 0: |
| 373 | Name index = 10 Name = "main" |
| 374 | .mask 0x80000000,-4 .fmask 0x00000000,0 |
| 375 | .frame $29,24,$31 |
| 376 | Opt. start = -1 Symbols start = 1 |
| 377 | First line # = 3 Last line # = 6 |
| 378 | Line Offset = 0 Address = 0x00000000 |
| 379 | |
| 380 | There are 4 bytes holding line numbers, starting at 380. |
| 381 | Line 3, delta 0, count 2 |
| 382 | Line 4, delta 1, count 3 |
| 383 | Line 5, delta 1, count 2 |
| 384 | Line 6, delta 1, count 6 |
| 385 | |
| 386 | File #1, "/usr/include/stdio.h" |
| 387 | |
| 388 | Name index = 1 Readin = No |
| 389 | Merge = Yes Endian = LITTLE |
| 390 | Debug level = G2 Language = C |
| 391 | Adr = 0x00000000 |
| 392 | |
| 393 | Info Start Number Size Offset |
| 394 | ==== ===== ====== ==== ====== |
| 395 | Local strings 15 65 65 799 |
| 396 | Local symbols 6 10 120 508 |
| 397 | Line numbers 0 0 0 380 |
| 398 | Optimization symbols 0 0 0 0 |
| 399 | Procedures 1 0 0 436 |
| 400 | Auxiliary symbols 14 25 100 684 |
| 401 | Relative Files 0 0 0 0 |
| 402 | |
| 403 | There are 10 local symbols, starting at 442 |
| 404 | |
| 405 | Symbol# 0: "/usr/include/stdio.h" |
| 406 | End+1 symbol = 10 |
| 407 | String index = 1 |
| 408 | Storage class = Text Index = 10 |
| 409 | Symbol type = File Value = 0 |
| 410 | |
| 411 | Symbol# 1: "_iobuf" |
| 412 | End+1 symbol = 9 |
| 413 | String index = 22 |
| 414 | Storage class = Info Index = 9 |
| 415 | Symbol type = Block Value = 20 |
| 416 | |
| 417 | Symbol# 2: "_cnt" |
| 418 | Type = int |
| 419 | String index = 29 |
| 420 | Storage class = Info Index = 4 |
| 421 | Symbol type = Member Value = 0 |
| 422 | |
| 423 | Symbol# 3: "_ptr" |
| 424 | Type = ptr to char |
| 425 | String index = 34 |
| 426 | Storage class = Info Index = 15 |
| 427 | Symbol type = Member Value = 32 |
| 428 | |
| 429 | Symbol# 4: "_base" |
| 430 | Type = ptr to char |
| 431 | String index = 39 |
| 432 | Storage class = Info Index = 16 |
| 433 | Symbol type = Member Value = 64 |
| 434 | |
| 435 | Symbol# 5: "_bufsiz" |
| 436 | Type = int |
| 437 | String index = 45 |
| 438 | Storage class = Info Index = 4 |
| 439 | Symbol type = Member Value = 96 |
| 440 | |
| 441 | Symbol# 6: "_flag" |
| 442 | Type = short |
| 443 | String index = 53 |
| 444 | Storage class = Info Index = 3 |
| 445 | Symbol type = Member Value = 128 |
| 446 | |
| 447 | Symbol# 7: "_file" |
| 448 | Type = char |
| 449 | String index = 59 |
| 450 | Storage class = Info Index = 2 |
| 451 | Symbol type = Member Value = 144 |
| 452 | |
| 453 | Symbol# 8: "" |
| 454 | First symbol = 1 |
| 455 | String index = 0 |
| 456 | Storage class = Info Index = 1 |
| 457 | Symbol type = End Value = 0 |
| 458 | |
| 459 | Symbol# 9: "/usr/include/stdio.h" |
| 460 | First symbol = 0 |
| 461 | String index = 1 |
| 462 | Storage class = Text Index = 0 |
| 463 | Symbol type = End Value = 0 |
| 464 | |
| 465 | There are 25 auxiliary table entries, starting at 642. |
| 466 | |
| 467 | * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f] |
| 468 | #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] |
| 469 | #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0] |
| 470 | * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0] |
| 471 | * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1] |
| 472 | * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] |
| 473 | * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4] |
| 474 | * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0] |
| 475 | * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 476 | * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0] |
| 477 | * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0] |
| 478 | * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 479 | * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 480 | * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 481 | * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 482 | * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 483 | * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 484 | * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 485 | * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 486 | * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 487 | * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 488 | * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 489 | * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 490 | * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 491 | * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0] |
| 492 | |
| 493 | There are 0 procedure descriptor entries, starting at 1. |
| 494 | |
| 495 | There are 20 external symbols, starting at 1152 |
| 496 | |
| 497 | Symbol# 0: "_iob" |
| 498 | Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 } |
| 499 | String index = 0 Ifd = 1 |
| 500 | Storage class = Nil Index = 17 |
| 501 | Symbol type = Global Value = 60 |
| 502 | |
| 503 | Symbol# 1: "fopen" |
| 504 | String index = 5 Ifd = 1 |
| 505 | Storage class = Nil Index = 1048575 |
| 506 | Symbol type = Proc Value = 0 |
| 507 | |
| 508 | Symbol# 2: "fdopen" |
| 509 | String index = 11 Ifd = 1 |
| 510 | Storage class = Nil Index = 1048575 |
| 511 | Symbol type = Proc Value = 0 |
| 512 | |
| 513 | Symbol# 3: "freopen" |
| 514 | String index = 18 Ifd = 1 |
| 515 | Storage class = Nil Index = 1048575 |
| 516 | Symbol type = Proc Value = 0 |
| 517 | |
| 518 | Symbol# 4: "popen" |
| 519 | String index = 26 Ifd = 1 |
| 520 | Storage class = Nil Index = 1048575 |
| 521 | Symbol type = Proc Value = 0 |
| 522 | |
| 523 | Symbol# 5: "tmpfile" |
| 524 | String index = 32 Ifd = 1 |
| 525 | Storage class = Nil Index = 1048575 |
| 526 | Symbol type = Proc Value = 0 |
| 527 | |
| 528 | Symbol# 6: "ftell" |
| 529 | String index = 40 Ifd = 1 |
| 530 | Storage class = Nil Index = 1048575 |
| 531 | Symbol type = Proc Value = 0 |
| 532 | |
| 533 | Symbol# 7: "rewind" |
| 534 | String index = 46 Ifd = 1 |
| 535 | Storage class = Nil Index = 1048575 |
| 536 | Symbol type = Proc Value = 0 |
| 537 | |
| 538 | Symbol# 8: "setbuf" |
| 539 | String index = 53 Ifd = 1 |
| 540 | Storage class = Nil Index = 1048575 |
| 541 | Symbol type = Proc Value = 0 |
| 542 | |
| 543 | Symbol# 9: "setbuffer" |
| 544 | String index = 60 Ifd = 1 |
| 545 | Storage class = Nil Index = 1048575 |
| 546 | Symbol type = Proc Value = 0 |
| 547 | |
| 548 | Symbol# 10: "setlinebuf" |
| 549 | String index = 70 Ifd = 1 |
| 550 | Storage class = Nil Index = 1048575 |
| 551 | Symbol type = Proc Value = 0 |
| 552 | |
| 553 | Symbol# 11: "fgets" |
| 554 | String index = 81 Ifd = 1 |
| 555 | Storage class = Nil Index = 1048575 |
| 556 | Symbol type = Proc Value = 0 |
| 557 | |
| 558 | Symbol# 12: "gets" |
| 559 | String index = 87 Ifd = 1 |
| 560 | Storage class = Nil Index = 1048575 |
| 561 | Symbol type = Proc Value = 0 |
| 562 | |
| 563 | Symbol# 13: "ctermid" |
| 564 | String index = 92 Ifd = 1 |
| 565 | Storage class = Nil Index = 1048575 |
| 566 | Symbol type = Proc Value = 0 |
| 567 | |
| 568 | Symbol# 14: "cuserid" |
| 569 | String index = 100 Ifd = 1 |
| 570 | Storage class = Nil Index = 1048575 |
| 571 | Symbol type = Proc Value = 0 |
| 572 | |
| 573 | Symbol# 15: "tempnam" |
| 574 | String index = 108 Ifd = 1 |
| 575 | Storage class = Nil Index = 1048575 |
| 576 | Symbol type = Proc Value = 0 |
| 577 | |
| 578 | Symbol# 16: "tmpnam" |
| 579 | String index = 116 Ifd = 1 |
| 580 | Storage class = Nil Index = 1048575 |
| 581 | Symbol type = Proc Value = 0 |
| 582 | |
| 583 | Symbol# 17: "sprintf" |
| 584 | String index = 123 Ifd = 1 |
| 585 | Storage class = Nil Index = 1048575 |
| 586 | Symbol type = Proc Value = 0 |
| 587 | |
| 588 | Symbol# 18: "main" |
| 589 | Type = int |
| 590 | String index = 131 Ifd = 0 |
| 591 | Storage class = Text Index = 1 |
| 592 | Symbol type = Proc Value = 0 |
| 593 | |
| 594 | Symbol# 19: "printf" |
| 595 | String index = 136 Ifd = 0 |
| 596 | Storage class = Undefined Index = 1048575 |
| 597 | Symbol type = Proc Value = 0 |
| 598 | |
| 599 | The following auxiliary table entries were unused: |
| 600 | |
| 601 | #0 0 0x00000000 void |
| 602 | #2 8 0x00000008 char |
| 603 | #3 16 0x00000010 short |
| 604 | #4 24 0x00000018 int |
| 605 | #5 32 0x00000020 long |
| 606 | #6 40 0x00000028 float |
| 607 | #7 44 0x0000002c double |
| 608 | #8 12 0x0000000c unsigned char |
| 609 | #9 20 0x00000014 unsigned short |
| 610 | #10 28 0x0000001c unsigned int |
| 611 | #11 36 0x00000024 unsigned long |
| 612 | #14 0 0x00000000 void |
| 613 | #15 24 0x00000018 int |
| 614 | #19 32 0x00000020 long |
| 615 | #20 40 0x00000028 float |
| 616 | #21 44 0x0000002c double |
| 617 | #22 12 0x0000000c unsigned char |
| 618 | #23 20 0x00000014 unsigned short |
| 619 | #24 28 0x0000001c unsigned int |
| 620 | #25 36 0x00000024 unsigned long |
| 621 | #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 } |
| 622 | */ |
| 623 | \f |
| 624 | /* Redefinition of of storage classes as an enumeration for better |
| 625 | debugging. */ |
| 626 | |
| 627 | typedef enum sc { |
| 628 | sc_Nil = scNil, /* no storage class */ |
| 629 | sc_Text = scText, /* text symbol */ |
| 630 | sc_Data = scData, /* initialized data symbol */ |
| 631 | sc_Bss = scBss, /* un-initialized data symbol */ |
| 632 | sc_Register = scRegister, /* value of symbol is register number */ |
| 633 | sc_Abs = scAbs, /* value of symbol is absolute */ |
| 634 | sc_Undefined = scUndefined, /* who knows? */ |
| 635 | sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */ |
| 636 | sc_Bits = scBits, /* this is a bit field */ |
| 637 | sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */ |
| 638 | sc_RegImage = scRegImage, /* register value saved on stack */ |
| 639 | sc_Info = scInfo, /* symbol contains debugger information */ |
| 640 | sc_UserStruct = scUserStruct, /* addr in struct user for current process */ |
| 641 | sc_SData = scSData, /* load time only small data */ |
| 642 | sc_SBss = scSBss, /* load time only small common */ |
| 643 | sc_RData = scRData, /* load time only read only data */ |
| 644 | sc_Var = scVar, /* Var parameter (fortran,pascal) */ |
| 645 | sc_Common = scCommon, /* common variable */ |
| 646 | sc_SCommon = scSCommon, /* small common */ |
| 647 | sc_VarRegister = scVarRegister, /* Var parameter in a register */ |
| 648 | sc_Variant = scVariant, /* Variant record */ |
| 649 | sc_SUndefined = scSUndefined, /* small undefined(external) data */ |
| 650 | sc_Init = scInit, /* .init section symbol */ |
| 651 | sc_Max = scMax /* Max storage class+1 */ |
| 652 | } sc_t; |
| 653 | |
| 654 | /* Redefinition of symbol type. */ |
| 655 | |
| 656 | typedef enum st { |
| 657 | st_Nil = stNil, /* Nuthin' special */ |
| 658 | st_Global = stGlobal, /* external symbol */ |
| 659 | st_Static = stStatic, /* static */ |
| 660 | st_Param = stParam, /* procedure argument */ |
| 661 | st_Local = stLocal, /* local variable */ |
| 662 | st_Label = stLabel, /* label */ |
| 663 | st_Proc = stProc, /* " " Procedure */ |
| 664 | st_Block = stBlock, /* beginning of block */ |
| 665 | st_End = stEnd, /* end (of anything) */ |
| 666 | st_Member = stMember, /* member (of anything - struct/union/enum */ |
| 667 | st_Typedef = stTypedef, /* type definition */ |
| 668 | st_File = stFile, /* file name */ |
| 669 | st_RegReloc = stRegReloc, /* register relocation */ |
| 670 | st_Forward = stForward, /* forwarding address */ |
| 671 | st_StaticProc = stStaticProc, /* load time only static procs */ |
| 672 | st_Constant = stConstant, /* const */ |
| 673 | st_Str = stStr, /* string */ |
| 674 | st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */ |
| 675 | st_Expr = stExpr, /* 2+2 vs. 4 */ |
| 676 | st_Type = stType, /* post-coercion SER */ |
| 677 | st_Max = stMax /* max type+1 */ |
| 678 | } st_t; |
| 679 | |
| 680 | /* Redefinition of type qualifiers. */ |
| 681 | |
| 682 | typedef enum tq { |
| 683 | tq_Nil = tqNil, /* bt is what you see */ |
| 684 | tq_Ptr = tqPtr, /* pointer */ |
| 685 | tq_Proc = tqProc, /* procedure */ |
| 686 | tq_Array = tqArray, /* duh */ |
| 687 | tq_Far = tqFar, /* longer addressing - 8086/8 land */ |
| 688 | tq_Vol = tqVol, /* volatile */ |
| 689 | tq_Max = tqMax /* Max type qualifier+1 */ |
| 690 | } tq_t; |
| 691 | |
| 692 | /* Redefinition of basic types. */ |
| 693 | |
| 694 | typedef enum bt { |
| 695 | bt_Nil = btNil, /* undefined */ |
| 696 | bt_Adr = btAdr, /* address - integer same size as pointer */ |
| 697 | bt_Char = btChar, /* character */ |
| 698 | bt_UChar = btUChar, /* unsigned character */ |
| 699 | bt_Short = btShort, /* short */ |
| 700 | bt_UShort = btUShort, /* unsigned short */ |
| 701 | bt_Int = btInt, /* int */ |
| 702 | bt_UInt = btUInt, /* unsigned int */ |
| 703 | bt_Long = btLong, /* long */ |
| 704 | bt_ULong = btULong, /* unsigned long */ |
| 705 | bt_Float = btFloat, /* float (real) */ |
| 706 | bt_Double = btDouble, /* Double (real) */ |
| 707 | bt_Struct = btStruct, /* Structure (Record) */ |
| 708 | bt_Union = btUnion, /* Union (variant) */ |
| 709 | bt_Enum = btEnum, /* Enumerated */ |
| 710 | bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */ |
| 711 | bt_Range = btRange, /* subrange of int */ |
| 712 | bt_Set = btSet, /* pascal sets */ |
| 713 | bt_Complex = btComplex, /* fortran complex */ |
| 714 | bt_DComplex = btDComplex, /* fortran double complex */ |
| 715 | bt_Indirect = btIndirect, /* forward or unnamed typedef */ |
| 716 | bt_FixedDec = btFixedDec, /* Fixed Decimal */ |
| 717 | bt_FloatDec = btFloatDec, /* Float Decimal */ |
| 718 | bt_String = btString, /* Varying Length Character String */ |
| 719 | bt_Bit = btBit, /* Aligned Bit String */ |
| 720 | bt_Picture = btPicture, /* Picture */ |
| 721 | bt_Void = btVoid, /* Void */ |
| 722 | bt_Max = btMax /* Max basic type+1 */ |
| 723 | } bt_t; |
| 724 | |
| 725 | #define N_TQ itqMax |
| 726 | |
| 727 | /* States for whether to hash type or not. */ |
| 728 | typedef enum hash_state { |
| 729 | hash_no = 0, /* Don't hash type */ |
| 730 | hash_yes = 1, /* OK to hash type, or use previous hash */ |
| 731 | hash_record = 2 /* OK to record hash, but don't use prev. */ |
| 732 | } hash_state_t; |
| 733 | |
| 734 | /* Types of different sized allocation requests. */ |
| 735 | enum alloc_type { |
| 736 | alloc_type_none, /* dummy value */ |
| 737 | alloc_type_scope, /* nested scopes linked list */ |
| 738 | alloc_type_vlinks, /* glue linking pages in varray */ |
| 739 | alloc_type_shash, /* string hash element */ |
| 740 | alloc_type_thash, /* type hash element */ |
| 741 | alloc_type_tag, /* struct/union/tag element */ |
| 742 | alloc_type_forward, /* element to hold unknown tag */ |
| 743 | alloc_type_thead, /* head of type hash list */ |
| 744 | alloc_type_varray, /* general varray allocation */ |
| 745 | alloc_type_lineno, /* line number list */ |
| 746 | alloc_type_last /* last+1 element for array bounds */ |
| 747 | }; |
| 748 | |
| 749 | /* Types of auxiliary type information. */ |
| 750 | enum aux_type { |
| 751 | aux_tir, /* TIR type information */ |
| 752 | aux_rndx, /* relative index into symbol table */ |
| 753 | aux_dnLow, /* low dimension */ |
| 754 | aux_dnHigh, /* high dimension */ |
| 755 | aux_isym, /* symbol table index (end of proc) */ |
| 756 | aux_iss, /* index into string space (not used) */ |
| 757 | aux_width, /* width for non-default sized struc fields */ |
| 758 | aux_count /* count of ranges for variant arm */ |
| 759 | }; |
| 760 | \f |
| 761 | /* Structures to provide n-number of virtual arrays, each of which can |
| 762 | grow linearly, and which are written in the object file as |
| 763 | sequential pages. On systems with a BSD malloc, the |
| 764 | MAX_CLUSTER_PAGES should be 1 less than a power of two, since |
| 765 | malloc adds it's overhead, and rounds up to the next power of 2. |
| 766 | Pages are linked together via a linked list. |
| 767 | |
| 768 | If PAGE_SIZE is > 4096, the string length in the shash_t structure |
| 769 | can't be represented (assuming there are strings > 4096 bytes). */ |
| 770 | |
| 771 | /* FIXME: Yes, there can be such strings while emitting C++ class debug |
| 772 | info. Templates are the offender here, the test case in question |
| 773 | having a mangled class name of |
| 774 | |
| 775 | t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\ |
| 776 | 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey |
| 777 | |
| 778 | Repeat that a couple dozen times while listing the class members and |
| 779 | you've got strings over 4k. Hack around this for now by increasing |
| 780 | the page size. A proper solution would abandon this structure scheme |
| 781 | certainly for very large strings, and possibly entirely. */ |
| 782 | |
| 783 | #ifndef PAGE_SIZE |
| 784 | #define PAGE_SIZE (8*1024) /* size of varray pages */ |
| 785 | #endif |
| 786 | |
| 787 | #define PAGE_USIZE ((unsigned long) PAGE_SIZE) |
| 788 | |
| 789 | #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */ |
| 790 | #define MAX_CLUSTER_PAGES 63 |
| 791 | #endif |
| 792 | |
| 793 | /* Linked list connecting separate page allocations. */ |
| 794 | typedef struct vlinks { |
| 795 | struct vlinks *prev; /* previous set of pages */ |
| 796 | struct vlinks *next; /* next set of pages */ |
| 797 | union page *datum; /* start of page */ |
| 798 | unsigned long start_index; /* starting index # of page */ |
| 799 | } vlinks_t; |
| 800 | |
| 801 | /* Virtual array header. */ |
| 802 | typedef struct varray { |
| 803 | vlinks_t *first; /* first page link */ |
| 804 | vlinks_t *last; /* last page link */ |
| 805 | unsigned long num_allocated; /* # objects allocated */ |
| 806 | unsigned short object_size; /* size in bytes of each object */ |
| 807 | unsigned short objects_per_page; /* # objects that can fit on a page */ |
| 808 | unsigned short objects_last_page; /* # objects allocated on last page */ |
| 809 | } varray_t; |
| 810 | |
| 811 | #ifndef MALLOC_CHECK |
| 812 | #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type)) |
| 813 | #else |
| 814 | #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE) |
| 815 | #endif |
| 816 | |
| 817 | #define INIT_VARRAY(type) { /* macro to initialize a varray */ \ |
| 818 | (vlinks_t *)0, /* first */ \ |
| 819 | (vlinks_t *)0, /* last */ \ |
| 820 | 0, /* num_allocated */ \ |
| 821 | sizeof (type), /* object_size */ \ |
| 822 | OBJECTS_PER_PAGE (type), /* objects_per_page */ \ |
| 823 | OBJECTS_PER_PAGE (type), /* objects_last_page */ \ |
| 824 | } |
| 825 | |
| 826 | /* Master type for indexes within the symbol table. */ |
| 827 | typedef unsigned long symint_t; |
| 828 | |
| 829 | /* Linked list support for nested scopes (file, block, structure, etc.). */ |
| 830 | typedef struct scope { |
| 831 | struct scope *prev; /* previous scope level */ |
| 832 | struct scope *free; /* free list pointer */ |
| 833 | struct localsym *lsym; /* pointer to local symbol node */ |
| 834 | st_t type; /* type of the node */ |
| 835 | } scope_t; |
| 836 | |
| 837 | /* For a local symbol we store a gas symbol as well as the debugging |
| 838 | information we generate. The gas symbol will be NULL if this is |
| 839 | only a debugging symbol. */ |
| 840 | typedef struct localsym { |
| 841 | const char *name; /* symbol name */ |
| 842 | symbolS *as_sym; /* symbol as seen by gas */ |
| 843 | bfd_vma addend; /* addend to as_sym value */ |
| 844 | struct efdr *file_ptr; /* file pointer */ |
| 845 | struct ecoff_proc *proc_ptr; /* proc pointer */ |
| 846 | struct localsym *begin_ptr; /* symbol at start of block */ |
| 847 | struct ecoff_aux *index_ptr; /* index value to be filled in */ |
| 848 | struct forward *forward_ref; /* forward references to this symbol */ |
| 849 | long sym_index; /* final symbol index */ |
| 850 | EXTR ecoff_sym; /* ECOFF debugging symbol */ |
| 851 | } localsym_t; |
| 852 | |
| 853 | /* For aux information we keep the type and the data. */ |
| 854 | typedef struct ecoff_aux { |
| 855 | enum aux_type type; /* aux type */ |
| 856 | AUXU data; /* aux data */ |
| 857 | } aux_t; |
| 858 | |
| 859 | /* For a procedure we store the gas symbol as well as the PDR |
| 860 | debugging information. */ |
| 861 | typedef struct ecoff_proc { |
| 862 | localsym_t *sym; /* associated symbol */ |
| 863 | PDR pdr; /* ECOFF debugging info */ |
| 864 | } proc_t; |
| 865 | |
| 866 | /* Number of proc_t structures allocated. */ |
| 867 | static unsigned long proc_cnt; |
| 868 | |
| 869 | /* Forward reference list for tags referenced, but not yet defined. */ |
| 870 | typedef struct forward { |
| 871 | struct forward *next; /* next forward reference */ |
| 872 | struct forward *free; /* free list pointer */ |
| 873 | aux_t *ifd_ptr; /* pointer to store file index */ |
| 874 | aux_t *index_ptr; /* pointer to store symbol index */ |
| 875 | } forward_t; |
| 876 | |
| 877 | /* Linked list support for tags. The first tag in the list is always |
| 878 | the current tag for that block. */ |
| 879 | typedef struct tag { |
| 880 | struct tag *free; /* free list pointer */ |
| 881 | struct shash *hash_ptr; /* pointer to the hash table head */ |
| 882 | struct tag *same_name; /* tag with same name in outer scope */ |
| 883 | struct tag *same_block; /* next tag defined in the same block. */ |
| 884 | struct forward *forward_ref; /* list of forward references */ |
| 885 | bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */ |
| 886 | symint_t ifd; /* file # tag defined in */ |
| 887 | localsym_t *sym; /* file's local symbols */ |
| 888 | } tag_t; |
| 889 | |
| 890 | /* Head of a block's linked list of tags. */ |
| 891 | typedef struct thead { |
| 892 | struct thead *prev; /* previous block */ |
| 893 | struct thead *free; /* free list pointer */ |
| 894 | struct tag *first_tag; /* first tag in block defined */ |
| 895 | } thead_t; |
| 896 | |
| 897 | /* Union containing pointers to each the small structures which are freed up. */ |
| 898 | typedef union small_free { |
| 899 | scope_t *f_scope; /* scope structure */ |
| 900 | thead_t *f_thead; /* tag head structure */ |
| 901 | tag_t *f_tag; /* tag element structure */ |
| 902 | forward_t *f_forward; /* forward tag reference */ |
| 903 | } small_free_t; |
| 904 | |
| 905 | /* String hash table entry. */ |
| 906 | |
| 907 | typedef struct shash { |
| 908 | char *string; /* string we are hashing */ |
| 909 | symint_t indx; /* index within string table */ |
| 910 | EXTR *esym_ptr; /* global symbol pointer */ |
| 911 | localsym_t *sym_ptr; /* local symbol pointer */ |
| 912 | localsym_t *end_ptr; /* symbol pointer to end block */ |
| 913 | tag_t *tag_ptr; /* tag pointer */ |
| 914 | proc_t *proc_ptr; /* procedure descriptor pointer */ |
| 915 | } shash_t; |
| 916 | |
| 917 | /* Type hash table support. The size of the hash table must fit |
| 918 | within a page with the other extended file descriptor information. |
| 919 | Because unique types which are hashed are fewer in number than |
| 920 | strings, we use a smaller hash value. */ |
| 921 | |
| 922 | #define HASHBITS 30 |
| 923 | |
| 924 | #ifndef THASH_SIZE |
| 925 | #define THASH_SIZE 113 |
| 926 | #endif |
| 927 | |
| 928 | typedef struct thash { |
| 929 | struct thash *next; /* next hash value */ |
| 930 | AUXU type; /* type we are hashing */ |
| 931 | symint_t indx; /* index within string table */ |
| 932 | } thash_t; |
| 933 | |
| 934 | /* Extended file descriptor that contains all of the support necessary |
| 935 | to add things to each file separately. */ |
| 936 | typedef struct efdr { |
| 937 | FDR fdr; /* File header to be written out */ |
| 938 | FDR *orig_fdr; /* original file header */ |
| 939 | char *name; /* filename */ |
| 940 | int fake; /* whether this is faked .file */ |
| 941 | symint_t void_type; /* aux. pointer to 'void' type */ |
| 942 | symint_t int_type; /* aux. pointer to 'int' type */ |
| 943 | scope_t *cur_scope; /* current nested scopes */ |
| 944 | symint_t file_index; /* current file number */ |
| 945 | int nested_scopes; /* # nested scopes */ |
| 946 | varray_t strings; /* local strings */ |
| 947 | varray_t symbols; /* local symbols */ |
| 948 | varray_t procs; /* procedures */ |
| 949 | varray_t aux_syms; /* auxiliary symbols */ |
| 950 | struct efdr *next_file; /* next file descriptor */ |
| 951 | /* string/type hash tables */ |
| 952 | struct hash_control *str_hash; /* string hash table */ |
| 953 | thash_t *thash_head[THASH_SIZE]; |
| 954 | } efdr_t; |
| 955 | |
| 956 | /* Pre-initialized extended file structure. */ |
| 957 | static const efdr_t init_file = { |
| 958 | { /* FDR structure */ |
| 959 | 0, /* adr: memory address of beginning of file */ |
| 960 | 0, /* rss: file name (of source, if known) */ |
| 961 | 0, /* issBase: file's string space */ |
| 962 | 0, /* cbSs: number of bytes in the ss */ |
| 963 | 0, /* isymBase: beginning of symbols */ |
| 964 | 0, /* csym: count file's of symbols */ |
| 965 | 0, /* ilineBase: file's line symbols */ |
| 966 | 0, /* cline: count of file's line symbols */ |
| 967 | 0, /* ioptBase: file's optimization entries */ |
| 968 | 0, /* copt: count of file's optimization entries */ |
| 969 | 0, /* ipdFirst: start of procedures for this file */ |
| 970 | 0, /* cpd: count of procedures for this file */ |
| 971 | 0, /* iauxBase: file's auxiliary entries */ |
| 972 | 0, /* caux: count of file's auxiliary entries */ |
| 973 | 0, /* rfdBase: index into the file indirect table */ |
| 974 | 0, /* crfd: count file indirect entries */ |
| 975 | langC, /* lang: language for this file */ |
| 976 | 1, /* fMerge: whether this file can be merged */ |
| 977 | 0, /* fReadin: true if read in (not just created) */ |
| 978 | TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */ |
| 979 | GLEVEL_2, /* glevel: level this file was compiled with */ |
| 980 | 0, /* reserved: reserved for future use */ |
| 981 | 0, /* cbLineOffset: byte offset from header for this file ln's */ |
| 982 | 0, /* cbLine: size of lines for this file */ |
| 983 | }, |
| 984 | |
| 985 | (FDR *)0, /* orig_fdr: original file header pointer */ |
| 986 | (char *)0, /* name: pointer to filename */ |
| 987 | 0, /* fake: whether this is a faked .file */ |
| 988 | 0, /* void_type: ptr to aux node for void type */ |
| 989 | 0, /* int_type: ptr to aux node for int type */ |
| 990 | (scope_t *)0, /* cur_scope: current scope being processed */ |
| 991 | 0, /* file_index: current file # */ |
| 992 | 0, /* nested_scopes: # nested scopes */ |
| 993 | INIT_VARRAY (char), /* strings: local string varray */ |
| 994 | INIT_VARRAY (localsym_t), /* symbols: local symbols varray */ |
| 995 | INIT_VARRAY (proc_t), /* procs: procedure varray */ |
| 996 | INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */ |
| 997 | |
| 998 | (struct efdr *)0, /* next_file: next file structure */ |
| 999 | |
| 1000 | (struct hash_control *)0, /* str_hash: string hash table */ |
| 1001 | { 0 }, /* thash_head: type hash table */ |
| 1002 | }; |
| 1003 | |
| 1004 | static efdr_t *first_file; /* first file descriptor */ |
| 1005 | static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */ |
| 1006 | |
| 1007 | /* Line number information is kept in a list until the assembly is |
| 1008 | finished. */ |
| 1009 | typedef struct lineno_list { |
| 1010 | struct lineno_list *next; /* next element in list */ |
| 1011 | efdr_t *file; /* file this line is in */ |
| 1012 | proc_t *proc; /* procedure this line is in */ |
| 1013 | fragS *frag; /* fragment this line number is in */ |
| 1014 | unsigned long paddr; /* offset within fragment */ |
| 1015 | long lineno; /* actual line number */ |
| 1016 | } lineno_list_t; |
| 1017 | |
| 1018 | static lineno_list_t *first_lineno; |
| 1019 | static lineno_list_t *last_lineno; |
| 1020 | static lineno_list_t **last_lineno_ptr = &first_lineno; |
| 1021 | |
| 1022 | /* Sometimes there will be some .loc statements before a .ent. We |
| 1023 | keep them in this list so that we can fill in the procedure pointer |
| 1024 | after we see the .ent. */ |
| 1025 | static lineno_list_t *noproc_lineno; |
| 1026 | |
| 1027 | /* Union of various things that are held in pages. */ |
| 1028 | typedef union page { |
| 1029 | char byte [ PAGE_SIZE ]; |
| 1030 | unsigned char ubyte [ PAGE_SIZE ]; |
| 1031 | efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ]; |
| 1032 | FDR ofile [ PAGE_SIZE / sizeof (FDR) ]; |
| 1033 | proc_t proc [ PAGE_SIZE / sizeof (proc_t) ]; |
| 1034 | localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ]; |
| 1035 | aux_t aux [ PAGE_SIZE / sizeof (aux_t) ]; |
| 1036 | DNR dense [ PAGE_SIZE / sizeof (DNR) ]; |
| 1037 | scope_t scope [ PAGE_SIZE / sizeof (scope_t) ]; |
| 1038 | vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ]; |
| 1039 | shash_t shash [ PAGE_SIZE / sizeof (shash_t) ]; |
| 1040 | thash_t thash [ PAGE_SIZE / sizeof (thash_t) ]; |
| 1041 | tag_t tag [ PAGE_SIZE / sizeof (tag_t) ]; |
| 1042 | forward_t forward [ PAGE_SIZE / sizeof (forward_t) ]; |
| 1043 | thead_t thead [ PAGE_SIZE / sizeof (thead_t) ]; |
| 1044 | lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ]; |
| 1045 | } page_type; |
| 1046 | |
| 1047 | /* Structure holding allocation information for small sized structures. */ |
| 1048 | typedef struct alloc_info { |
| 1049 | char *alloc_name; /* name of this allocation type (must be first) */ |
| 1050 | page_type *cur_page; /* current page being allocated from */ |
| 1051 | small_free_t free_list; /* current free list if any */ |
| 1052 | int unallocated; /* number of elements unallocated on page */ |
| 1053 | int total_alloc; /* total number of allocations */ |
| 1054 | int total_free; /* total number of frees */ |
| 1055 | int total_pages; /* total number of pages allocated */ |
| 1056 | } alloc_info_t; |
| 1057 | |
| 1058 | /* Type information collected together. */ |
| 1059 | typedef struct type_info { |
| 1060 | bt_t basic_type; /* basic type */ |
| 1061 | int orig_type; /* original COFF-based type */ |
| 1062 | int num_tq; /* # type qualifiers */ |
| 1063 | int num_dims; /* # dimensions */ |
| 1064 | int num_sizes; /* # sizes */ |
| 1065 | int extra_sizes; /* # extra sizes not tied with dims */ |
| 1066 | tag_t * tag_ptr; /* tag pointer */ |
| 1067 | int bitfield; /* symbol is a bitfield */ |
| 1068 | tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/ |
| 1069 | symint_t dimensions [N_TQ]; /* dimensions for each array */ |
| 1070 | symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of |
| 1071 | struct/union/enum + bitfield size */ |
| 1072 | } type_info_t; |
| 1073 | |
| 1074 | /* Pre-initialized type_info struct. */ |
| 1075 | static const type_info_t type_info_init = { |
| 1076 | bt_Nil, /* basic type */ |
| 1077 | T_NULL, /* original COFF-based type */ |
| 1078 | 0, /* # type qualifiers */ |
| 1079 | 0, /* # dimensions */ |
| 1080 | 0, /* # sizes */ |
| 1081 | 0, /* sizes not tied with dims */ |
| 1082 | NULL, /* ptr to tag */ |
| 1083 | 0, /* bitfield */ |
| 1084 | { /* type qualifiers */ |
| 1085 | tq_Nil, |
| 1086 | tq_Nil, |
| 1087 | tq_Nil, |
| 1088 | tq_Nil, |
| 1089 | tq_Nil, |
| 1090 | tq_Nil, |
| 1091 | }, |
| 1092 | { /* dimensions */ |
| 1093 | 0, |
| 1094 | 0, |
| 1095 | 0, |
| 1096 | 0, |
| 1097 | 0, |
| 1098 | 0 |
| 1099 | }, |
| 1100 | { /* sizes */ |
| 1101 | 0, |
| 1102 | 0, |
| 1103 | 0, |
| 1104 | 0, |
| 1105 | 0, |
| 1106 | 0, |
| 1107 | 0, |
| 1108 | 0, |
| 1109 | }, |
| 1110 | }; |
| 1111 | |
| 1112 | /* Global hash table for the tags table and global table for file |
| 1113 | descriptors. */ |
| 1114 | |
| 1115 | static varray_t file_desc = INIT_VARRAY (efdr_t); |
| 1116 | |
| 1117 | static struct hash_control *tag_hash; |
| 1118 | |
| 1119 | /* Static types for int and void. Also, remember the last function's |
| 1120 | type (which is set up when we encounter the declaration for the |
| 1121 | function, and used when the end block for the function is emitted. */ |
| 1122 | |
| 1123 | static type_info_t int_type_info; |
| 1124 | static type_info_t void_type_info; |
| 1125 | static type_info_t last_func_type_info; |
| 1126 | static symbolS *last_func_sym_value; |
| 1127 | |
| 1128 | /* Convert COFF basic type to ECOFF basic type. The T_NULL type |
| 1129 | really should use bt_Void, but this causes the current ecoff GDB to |
| 1130 | issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS |
| 1131 | 2.0) doesn't understand it, even though the compiler generates it. |
| 1132 | Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler |
| 1133 | suite, but for now go with what works. |
| 1134 | |
| 1135 | It would make sense for the .type and .scl directives to use the |
| 1136 | ECOFF numbers directly, rather than using the COFF numbers and |
| 1137 | mapping them. Unfortunately, this is historically what mips-tfile |
| 1138 | expects, and changing gcc now would be a considerable pain (the |
| 1139 | native compiler generates debugging information internally, rather |
| 1140 | than via the assembler, so it will never use .type or .scl). */ |
| 1141 | |
| 1142 | static const bt_t map_coff_types[] = { |
| 1143 | bt_Nil, /* T_NULL */ |
| 1144 | bt_Nil, /* T_ARG */ |
| 1145 | bt_Char, /* T_CHAR */ |
| 1146 | bt_Short, /* T_SHORT */ |
| 1147 | bt_Int, /* T_INT */ |
| 1148 | bt_Long, /* T_LONG */ |
| 1149 | bt_Float, /* T_FLOAT */ |
| 1150 | bt_Double, /* T_DOUBLE */ |
| 1151 | bt_Struct, /* T_STRUCT */ |
| 1152 | bt_Union, /* T_UNION */ |
| 1153 | bt_Enum, /* T_ENUM */ |
| 1154 | bt_Enum, /* T_MOE */ |
| 1155 | bt_UChar, /* T_UCHAR */ |
| 1156 | bt_UShort, /* T_USHORT */ |
| 1157 | bt_UInt, /* T_UINT */ |
| 1158 | bt_ULong /* T_ULONG */ |
| 1159 | }; |
| 1160 | |
| 1161 | /* Convert COFF storage class to ECOFF storage class. */ |
| 1162 | static const sc_t map_coff_storage[] = { |
| 1163 | sc_Nil, /* 0: C_NULL */ |
| 1164 | sc_Abs, /* 1: C_AUTO auto var */ |
| 1165 | sc_Undefined, /* 2: C_EXT external */ |
| 1166 | sc_Data, /* 3: C_STAT static */ |
| 1167 | sc_Register, /* 4: C_REG register */ |
| 1168 | sc_Undefined, /* 5: C_EXTDEF ??? */ |
| 1169 | sc_Text, /* 6: C_LABEL label */ |
| 1170 | sc_Text, /* 7: C_ULABEL user label */ |
| 1171 | sc_Info, /* 8: C_MOS member of struct */ |
| 1172 | sc_Abs, /* 9: C_ARG argument */ |
| 1173 | sc_Info, /* 10: C_STRTAG struct tag */ |
| 1174 | sc_Info, /* 11: C_MOU member of union */ |
| 1175 | sc_Info, /* 12: C_UNTAG union tag */ |
| 1176 | sc_Info, /* 13: C_TPDEF typedef */ |
| 1177 | sc_Data, /* 14: C_USTATIC ??? */ |
| 1178 | sc_Info, /* 15: C_ENTAG enum tag */ |
| 1179 | sc_Info, /* 16: C_MOE member of enum */ |
| 1180 | sc_Register, /* 17: C_REGPARM register parameter */ |
| 1181 | sc_Bits, /* 18; C_FIELD bitfield */ |
| 1182 | sc_Nil, /* 19 */ |
| 1183 | sc_Nil, /* 20 */ |
| 1184 | sc_Nil, /* 21 */ |
| 1185 | sc_Nil, /* 22 */ |
| 1186 | sc_Nil, /* 23 */ |
| 1187 | sc_Nil, /* 24 */ |
| 1188 | sc_Nil, /* 25 */ |
| 1189 | sc_Nil, /* 26 */ |
| 1190 | sc_Nil, /* 27 */ |
| 1191 | sc_Nil, /* 28 */ |
| 1192 | sc_Nil, /* 29 */ |
| 1193 | sc_Nil, /* 30 */ |
| 1194 | sc_Nil, /* 31 */ |
| 1195 | sc_Nil, /* 32 */ |
| 1196 | sc_Nil, /* 33 */ |
| 1197 | sc_Nil, /* 34 */ |
| 1198 | sc_Nil, /* 35 */ |
| 1199 | sc_Nil, /* 36 */ |
| 1200 | sc_Nil, /* 37 */ |
| 1201 | sc_Nil, /* 38 */ |
| 1202 | sc_Nil, /* 39 */ |
| 1203 | sc_Nil, /* 40 */ |
| 1204 | sc_Nil, /* 41 */ |
| 1205 | sc_Nil, /* 42 */ |
| 1206 | sc_Nil, /* 43 */ |
| 1207 | sc_Nil, /* 44 */ |
| 1208 | sc_Nil, /* 45 */ |
| 1209 | sc_Nil, /* 46 */ |
| 1210 | sc_Nil, /* 47 */ |
| 1211 | sc_Nil, /* 48 */ |
| 1212 | sc_Nil, /* 49 */ |
| 1213 | sc_Nil, /* 50 */ |
| 1214 | sc_Nil, /* 51 */ |
| 1215 | sc_Nil, /* 52 */ |
| 1216 | sc_Nil, /* 53 */ |
| 1217 | sc_Nil, /* 54 */ |
| 1218 | sc_Nil, /* 55 */ |
| 1219 | sc_Nil, /* 56 */ |
| 1220 | sc_Nil, /* 57 */ |
| 1221 | sc_Nil, /* 58 */ |
| 1222 | sc_Nil, /* 59 */ |
| 1223 | sc_Nil, /* 60 */ |
| 1224 | sc_Nil, /* 61 */ |
| 1225 | sc_Nil, /* 62 */ |
| 1226 | sc_Nil, /* 63 */ |
| 1227 | sc_Nil, /* 64 */ |
| 1228 | sc_Nil, /* 65 */ |
| 1229 | sc_Nil, /* 66 */ |
| 1230 | sc_Nil, /* 67 */ |
| 1231 | sc_Nil, /* 68 */ |
| 1232 | sc_Nil, /* 69 */ |
| 1233 | sc_Nil, /* 70 */ |
| 1234 | sc_Nil, /* 71 */ |
| 1235 | sc_Nil, /* 72 */ |
| 1236 | sc_Nil, /* 73 */ |
| 1237 | sc_Nil, /* 74 */ |
| 1238 | sc_Nil, /* 75 */ |
| 1239 | sc_Nil, /* 76 */ |
| 1240 | sc_Nil, /* 77 */ |
| 1241 | sc_Nil, /* 78 */ |
| 1242 | sc_Nil, /* 79 */ |
| 1243 | sc_Nil, /* 80 */ |
| 1244 | sc_Nil, /* 81 */ |
| 1245 | sc_Nil, /* 82 */ |
| 1246 | sc_Nil, /* 83 */ |
| 1247 | sc_Nil, /* 84 */ |
| 1248 | sc_Nil, /* 85 */ |
| 1249 | sc_Nil, /* 86 */ |
| 1250 | sc_Nil, /* 87 */ |
| 1251 | sc_Nil, /* 88 */ |
| 1252 | sc_Nil, /* 89 */ |
| 1253 | sc_Nil, /* 90 */ |
| 1254 | sc_Nil, /* 91 */ |
| 1255 | sc_Nil, /* 92 */ |
| 1256 | sc_Nil, /* 93 */ |
| 1257 | sc_Nil, /* 94 */ |
| 1258 | sc_Nil, /* 95 */ |
| 1259 | sc_Nil, /* 96 */ |
| 1260 | sc_Nil, /* 97 */ |
| 1261 | sc_Nil, /* 98 */ |
| 1262 | sc_Nil, /* 99 */ |
| 1263 | sc_Text, /* 100: C_BLOCK block start/end */ |
| 1264 | sc_Text, /* 101: C_FCN function start/end */ |
| 1265 | sc_Info, /* 102: C_EOS end of struct/union/enum */ |
| 1266 | sc_Nil, /* 103: C_FILE file start */ |
| 1267 | sc_Nil, /* 104: C_LINE line number */ |
| 1268 | sc_Nil, /* 105: C_ALIAS combined type info */ |
| 1269 | sc_Nil, /* 106: C_HIDDEN ??? */ |
| 1270 | }; |
| 1271 | |
| 1272 | /* Convert COFF storage class to ECOFF symbol type. */ |
| 1273 | static const st_t map_coff_sym_type[] = { |
| 1274 | st_Nil, /* 0: C_NULL */ |
| 1275 | st_Local, /* 1: C_AUTO auto var */ |
| 1276 | st_Global, /* 2: C_EXT external */ |
| 1277 | st_Static, /* 3: C_STAT static */ |
| 1278 | st_Local, /* 4: C_REG register */ |
| 1279 | st_Global, /* 5: C_EXTDEF ??? */ |
| 1280 | st_Label, /* 6: C_LABEL label */ |
| 1281 | st_Label, /* 7: C_ULABEL user label */ |
| 1282 | st_Member, /* 8: C_MOS member of struct */ |
| 1283 | st_Param, /* 9: C_ARG argument */ |
| 1284 | st_Block, /* 10: C_STRTAG struct tag */ |
| 1285 | st_Member, /* 11: C_MOU member of union */ |
| 1286 | st_Block, /* 12: C_UNTAG union tag */ |
| 1287 | st_Typedef, /* 13: C_TPDEF typedef */ |
| 1288 | st_Static, /* 14: C_USTATIC ??? */ |
| 1289 | st_Block, /* 15: C_ENTAG enum tag */ |
| 1290 | st_Member, /* 16: C_MOE member of enum */ |
| 1291 | st_Param, /* 17: C_REGPARM register parameter */ |
| 1292 | st_Member, /* 18; C_FIELD bitfield */ |
| 1293 | st_Nil, /* 19 */ |
| 1294 | st_Nil, /* 20 */ |
| 1295 | st_Nil, /* 21 */ |
| 1296 | st_Nil, /* 22 */ |
| 1297 | st_Nil, /* 23 */ |
| 1298 | st_Nil, /* 24 */ |
| 1299 | st_Nil, /* 25 */ |
| 1300 | st_Nil, /* 26 */ |
| 1301 | st_Nil, /* 27 */ |
| 1302 | st_Nil, /* 28 */ |
| 1303 | st_Nil, /* 29 */ |
| 1304 | st_Nil, /* 30 */ |
| 1305 | st_Nil, /* 31 */ |
| 1306 | st_Nil, /* 32 */ |
| 1307 | st_Nil, /* 33 */ |
| 1308 | st_Nil, /* 34 */ |
| 1309 | st_Nil, /* 35 */ |
| 1310 | st_Nil, /* 36 */ |
| 1311 | st_Nil, /* 37 */ |
| 1312 | st_Nil, /* 38 */ |
| 1313 | st_Nil, /* 39 */ |
| 1314 | st_Nil, /* 40 */ |
| 1315 | st_Nil, /* 41 */ |
| 1316 | st_Nil, /* 42 */ |
| 1317 | st_Nil, /* 43 */ |
| 1318 | st_Nil, /* 44 */ |
| 1319 | st_Nil, /* 45 */ |
| 1320 | st_Nil, /* 46 */ |
| 1321 | st_Nil, /* 47 */ |
| 1322 | st_Nil, /* 48 */ |
| 1323 | st_Nil, /* 49 */ |
| 1324 | st_Nil, /* 50 */ |
| 1325 | st_Nil, /* 51 */ |
| 1326 | st_Nil, /* 52 */ |
| 1327 | st_Nil, /* 53 */ |
| 1328 | st_Nil, /* 54 */ |
| 1329 | st_Nil, /* 55 */ |
| 1330 | st_Nil, /* 56 */ |
| 1331 | st_Nil, /* 57 */ |
| 1332 | st_Nil, /* 58 */ |
| 1333 | st_Nil, /* 59 */ |
| 1334 | st_Nil, /* 60 */ |
| 1335 | st_Nil, /* 61 */ |
| 1336 | st_Nil, /* 62 */ |
| 1337 | st_Nil, /* 63 */ |
| 1338 | st_Nil, /* 64 */ |
| 1339 | st_Nil, /* 65 */ |
| 1340 | st_Nil, /* 66 */ |
| 1341 | st_Nil, /* 67 */ |
| 1342 | st_Nil, /* 68 */ |
| 1343 | st_Nil, /* 69 */ |
| 1344 | st_Nil, /* 70 */ |
| 1345 | st_Nil, /* 71 */ |
| 1346 | st_Nil, /* 72 */ |
| 1347 | st_Nil, /* 73 */ |
| 1348 | st_Nil, /* 74 */ |
| 1349 | st_Nil, /* 75 */ |
| 1350 | st_Nil, /* 76 */ |
| 1351 | st_Nil, /* 77 */ |
| 1352 | st_Nil, /* 78 */ |
| 1353 | st_Nil, /* 79 */ |
| 1354 | st_Nil, /* 80 */ |
| 1355 | st_Nil, /* 81 */ |
| 1356 | st_Nil, /* 82 */ |
| 1357 | st_Nil, /* 83 */ |
| 1358 | st_Nil, /* 84 */ |
| 1359 | st_Nil, /* 85 */ |
| 1360 | st_Nil, /* 86 */ |
| 1361 | st_Nil, /* 87 */ |
| 1362 | st_Nil, /* 88 */ |
| 1363 | st_Nil, /* 89 */ |
| 1364 | st_Nil, /* 90 */ |
| 1365 | st_Nil, /* 91 */ |
| 1366 | st_Nil, /* 92 */ |
| 1367 | st_Nil, /* 93 */ |
| 1368 | st_Nil, /* 94 */ |
| 1369 | st_Nil, /* 95 */ |
| 1370 | st_Nil, /* 96 */ |
| 1371 | st_Nil, /* 97 */ |
| 1372 | st_Nil, /* 98 */ |
| 1373 | st_Nil, /* 99 */ |
| 1374 | st_Block, /* 100: C_BLOCK block start/end */ |
| 1375 | st_Proc, /* 101: C_FCN function start/end */ |
| 1376 | st_End, /* 102: C_EOS end of struct/union/enum */ |
| 1377 | st_File, /* 103: C_FILE file start */ |
| 1378 | st_Nil, /* 104: C_LINE line number */ |
| 1379 | st_Nil, /* 105: C_ALIAS combined type info */ |
| 1380 | st_Nil, /* 106: C_HIDDEN ??? */ |
| 1381 | }; |
| 1382 | |
| 1383 | /* Keep track of different sized allocation requests. */ |
| 1384 | static alloc_info_t alloc_counts[(int) alloc_type_last]; |
| 1385 | \f |
| 1386 | /* Record whether we have seen any debugging information. */ |
| 1387 | int ecoff_debugging_seen = 0; |
| 1388 | |
| 1389 | /* Various statics. */ |
| 1390 | static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */ |
| 1391 | static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */ |
| 1392 | static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */ |
| 1393 | static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */ |
| 1394 | static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */ |
| 1395 | #ifdef ECOFF_DEBUG |
| 1396 | static int debug = 0; /* trace functions */ |
| 1397 | #endif |
| 1398 | static int stabs_seen = 0; /* != 0 if stabs have been seen */ |
| 1399 | |
| 1400 | static int current_file_idx; |
| 1401 | static const char *current_stabs_filename; |
| 1402 | |
| 1403 | /* Pseudo symbol to use when putting stabs into the symbol table. */ |
| 1404 | #ifndef STABS_SYMBOL |
| 1405 | #define STABS_SYMBOL "@stabs" |
| 1406 | #endif |
| 1407 | |
| 1408 | static char stabs_symbol[] = STABS_SYMBOL; |
| 1409 | \f |
| 1410 | /* Prototypes for functions defined in this file. */ |
| 1411 | |
| 1412 | static void add_varray_page (varray_t *vp); |
| 1413 | static symint_t add_string (varray_t *vp, |
| 1414 | struct hash_control *hash_tbl, |
| 1415 | const char *str, |
| 1416 | shash_t **ret_hash); |
| 1417 | static localsym_t *add_ecoff_symbol (const char *str, st_t type, |
| 1418 | sc_t storage, symbolS *sym, |
| 1419 | bfd_vma addend, symint_t value, |
| 1420 | symint_t indx); |
| 1421 | static symint_t add_aux_sym_symint (symint_t aux_word); |
| 1422 | static symint_t add_aux_sym_rndx (int file_index, symint_t sym_index); |
| 1423 | static symint_t add_aux_sym_tir (type_info_t *t, |
| 1424 | hash_state_t state, |
| 1425 | thash_t **hash_tbl); |
| 1426 | static tag_t *get_tag (const char *tag, localsym_t *sym, bt_t basic_type); |
| 1427 | static void add_unknown_tag (tag_t *ptag); |
| 1428 | static void add_procedure (char *func); |
| 1429 | static void add_file (const char *file_name, int indx, int fake); |
| 1430 | #ifdef ECOFF_DEBUG |
| 1431 | static char *sc_to_string (sc_t storage_class); |
| 1432 | static char *st_to_string (st_t symbol_type); |
| 1433 | #endif |
| 1434 | static void mark_stabs (int); |
| 1435 | static char *ecoff_add_bytes (char **buf, char **bufend, |
| 1436 | char *bufptr, unsigned long need); |
| 1437 | static unsigned long ecoff_padding_adjust |
| 1438 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1439 | unsigned long offset, char **bufptrptr); |
| 1440 | static unsigned long ecoff_build_lineno |
| 1441 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1442 | unsigned long offset, long *linecntptr); |
| 1443 | static unsigned long ecoff_build_symbols |
| 1444 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1445 | unsigned long offset); |
| 1446 | static unsigned long ecoff_build_procs |
| 1447 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1448 | unsigned long offset); |
| 1449 | static unsigned long ecoff_build_aux |
| 1450 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1451 | unsigned long offset); |
| 1452 | static unsigned long ecoff_build_strings (char **buf, char **bufend, |
| 1453 | unsigned long offset, |
| 1454 | varray_t *vp); |
| 1455 | static unsigned long ecoff_build_ss |
| 1456 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1457 | unsigned long offset); |
| 1458 | static unsigned long ecoff_build_fdr |
| 1459 | (const struct ecoff_debug_swap *backend, char **buf, char **bufend, |
| 1460 | unsigned long offset); |
| 1461 | static void ecoff_setup_ext (void); |
| 1462 | static page_type *allocate_cluster (unsigned long npages); |
| 1463 | static page_type *allocate_page (void); |
| 1464 | static scope_t *allocate_scope (void); |
| 1465 | static void free_scope (scope_t *ptr); |
| 1466 | static vlinks_t *allocate_vlinks (void); |
| 1467 | static shash_t *allocate_shash (void); |
| 1468 | static thash_t *allocate_thash (void); |
| 1469 | static tag_t *allocate_tag (void); |
| 1470 | static void free_tag (tag_t *ptr); |
| 1471 | static forward_t *allocate_forward (void); |
| 1472 | static thead_t *allocate_thead (void); |
| 1473 | static void free_thead (thead_t *ptr); |
| 1474 | static lineno_list_t *allocate_lineno_list (void); |
| 1475 | \f |
| 1476 | /* This function should be called when the assembler starts up. */ |
| 1477 | |
| 1478 | void |
| 1479 | ecoff_read_begin_hook (void) |
| 1480 | { |
| 1481 | tag_hash = hash_new (); |
| 1482 | top_tag_head = allocate_thead (); |
| 1483 | top_tag_head->first_tag = (tag_t *) NULL; |
| 1484 | top_tag_head->free = (thead_t *) NULL; |
| 1485 | top_tag_head->prev = cur_tag_head; |
| 1486 | cur_tag_head = top_tag_head; |
| 1487 | } |
| 1488 | |
| 1489 | /* This function should be called when a symbol is created. */ |
| 1490 | |
| 1491 | void |
| 1492 | ecoff_symbol_new_hook (symbolS *symbolP) |
| 1493 | { |
| 1494 | OBJ_SYMFIELD_TYPE *obj; |
| 1495 | |
| 1496 | /* Make sure that we have a file pointer, but only if we have seen a |
| 1497 | file. If we haven't seen a file, then this is a probably special |
| 1498 | symbol created by md_begin which may required special handling at |
| 1499 | some point. Creating a dummy file with a dummy name is certainly |
| 1500 | wrong. */ |
| 1501 | if (cur_file_ptr == (efdr_t *) NULL |
| 1502 | && seen_at_least_1_file ()) |
| 1503 | add_file ((const char *) NULL, 0, 1); |
| 1504 | obj = symbol_get_obj (symbolP); |
| 1505 | obj->ecoff_file = cur_file_ptr; |
| 1506 | obj->ecoff_symbol = NULL; |
| 1507 | obj->ecoff_extern_size = 0; |
| 1508 | } |
| 1509 | \f |
| 1510 | /* Add a page to a varray object. */ |
| 1511 | |
| 1512 | static void |
| 1513 | add_varray_page (varray_t *vp /* varray to add page to */) |
| 1514 | { |
| 1515 | vlinks_t *new_links = allocate_vlinks (); |
| 1516 | |
| 1517 | #ifdef MALLOC_CHECK |
| 1518 | if (vp->object_size > 1) |
| 1519 | new_links->datum = (page_type *) xcalloc (1, vp->object_size); |
| 1520 | else |
| 1521 | #endif |
| 1522 | new_links->datum = allocate_page (); |
| 1523 | |
| 1524 | alloc_counts[(int) alloc_type_varray].total_alloc++; |
| 1525 | alloc_counts[(int) alloc_type_varray].total_pages++; |
| 1526 | |
| 1527 | new_links->start_index = vp->num_allocated; |
| 1528 | vp->objects_last_page = 0; |
| 1529 | |
| 1530 | if (vp->first == (vlinks_t *) NULL) /* first allocation? */ |
| 1531 | vp->first = vp->last = new_links; |
| 1532 | else |
| 1533 | { /* 2nd or greater allocation */ |
| 1534 | new_links->prev = vp->last; |
| 1535 | vp->last->next = new_links; |
| 1536 | vp->last = new_links; |
| 1537 | } |
| 1538 | } |
| 1539 | \f |
| 1540 | /* Add a string (and null pad) to one of the string tables. */ |
| 1541 | |
| 1542 | static symint_t |
| 1543 | add_string (varray_t *vp, /* string obstack */ |
| 1544 | struct hash_control *hash_tbl, /* ptr to hash table */ |
| 1545 | const char *str, /* string */ |
| 1546 | shash_t **ret_hash /* return hash pointer */) |
| 1547 | { |
| 1548 | register unsigned long len = strlen (str); |
| 1549 | register shash_t *hash_ptr; |
| 1550 | |
| 1551 | if (len >= PAGE_USIZE) |
| 1552 | as_fatal (_("string too big (%lu bytes)"), len); |
| 1553 | |
| 1554 | hash_ptr = (shash_t *) hash_find (hash_tbl, str); |
| 1555 | if (hash_ptr == (shash_t *) NULL) |
| 1556 | { |
| 1557 | register const char *err; |
| 1558 | |
| 1559 | if (vp->objects_last_page + len >= PAGE_USIZE) |
| 1560 | { |
| 1561 | vp->num_allocated = |
| 1562 | ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE; |
| 1563 | add_varray_page (vp); |
| 1564 | } |
| 1565 | |
| 1566 | hash_ptr = allocate_shash (); |
| 1567 | hash_ptr->indx = vp->num_allocated; |
| 1568 | |
| 1569 | hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page]; |
| 1570 | |
| 1571 | vp->objects_last_page += len + 1; |
| 1572 | vp->num_allocated += len + 1; |
| 1573 | |
| 1574 | strcpy (hash_ptr->string, str); |
| 1575 | |
| 1576 | err = hash_insert (hash_tbl, str, (char *) hash_ptr); |
| 1577 | if (err) |
| 1578 | as_fatal (_("inserting \"%s\" into string hash table: %s"), |
| 1579 | str, err); |
| 1580 | } |
| 1581 | |
| 1582 | if (ret_hash != (shash_t **) NULL) |
| 1583 | *ret_hash = hash_ptr; |
| 1584 | |
| 1585 | return hash_ptr->indx; |
| 1586 | } |
| 1587 | \f |
| 1588 | /* Add debugging information for a symbol. */ |
| 1589 | |
| 1590 | static localsym_t * |
| 1591 | add_ecoff_symbol (const char *str, /* symbol name */ |
| 1592 | st_t type, /* symbol type */ |
| 1593 | sc_t storage, /* storage class */ |
| 1594 | symbolS *sym_value, /* associated symbol. */ |
| 1595 | bfd_vma addend, /* addend to sym_value. */ |
| 1596 | symint_t value, /* value of symbol */ |
| 1597 | symint_t indx /* index to local/aux. syms */) |
| 1598 | { |
| 1599 | localsym_t *psym; |
| 1600 | register scope_t *pscope; |
| 1601 | register thead_t *ptag_head; |
| 1602 | register tag_t *ptag; |
| 1603 | register tag_t *ptag_next; |
| 1604 | register varray_t *vp; |
| 1605 | register int scope_delta = 0; |
| 1606 | shash_t *hash_ptr = (shash_t *) NULL; |
| 1607 | |
| 1608 | if (cur_file_ptr == (efdr_t *) NULL) |
| 1609 | as_fatal (_("no current file pointer")); |
| 1610 | |
| 1611 | vp = &cur_file_ptr->symbols; |
| 1612 | |
| 1613 | if (vp->objects_last_page == vp->objects_per_page) |
| 1614 | add_varray_page (vp); |
| 1615 | |
| 1616 | psym = &vp->last->datum->sym[vp->objects_last_page++]; |
| 1617 | |
| 1618 | if (str == (const char *) NULL && sym_value != (symbolS *) NULL) |
| 1619 | psym->name = S_GET_NAME (sym_value); |
| 1620 | else |
| 1621 | psym->name = str; |
| 1622 | psym->as_sym = sym_value; |
| 1623 | if (sym_value != (symbolS *) NULL) |
| 1624 | symbol_get_obj (sym_value)->ecoff_symbol = psym; |
| 1625 | psym->addend = addend; |
| 1626 | psym->file_ptr = cur_file_ptr; |
| 1627 | psym->proc_ptr = cur_proc_ptr; |
| 1628 | psym->begin_ptr = (localsym_t *) NULL; |
| 1629 | psym->index_ptr = (aux_t *) NULL; |
| 1630 | psym->forward_ref = (forward_t *) NULL; |
| 1631 | psym->sym_index = -1; |
| 1632 | memset (&psym->ecoff_sym, 0, sizeof (EXTR)); |
| 1633 | psym->ecoff_sym.asym.value = value; |
| 1634 | psym->ecoff_sym.asym.st = (unsigned) type; |
| 1635 | psym->ecoff_sym.asym.sc = (unsigned) storage; |
| 1636 | psym->ecoff_sym.asym.index = indx; |
| 1637 | |
| 1638 | /* If there is an associated symbol, we wait until the end of the |
| 1639 | assembly before deciding where to put the name (it may be just an |
| 1640 | external symbol). Otherwise, this is just a debugging symbol and |
| 1641 | the name should go with the current file. */ |
| 1642 | if (sym_value == (symbolS *) NULL) |
| 1643 | psym->ecoff_sym.asym.iss = ((str == (const char *) NULL) |
| 1644 | ? 0 |
| 1645 | : add_string (&cur_file_ptr->strings, |
| 1646 | cur_file_ptr->str_hash, |
| 1647 | str, |
| 1648 | &hash_ptr)); |
| 1649 | |
| 1650 | ++vp->num_allocated; |
| 1651 | |
| 1652 | if (ECOFF_IS_STAB (&psym->ecoff_sym.asym)) |
| 1653 | return psym; |
| 1654 | |
| 1655 | /* Save the symbol within the hash table if this is a static |
| 1656 | item, and it has a name. */ |
| 1657 | if (hash_ptr != (shash_t *) NULL |
| 1658 | && (type == st_Global || type == st_Static || type == st_Label |
| 1659 | || type == st_Proc || type == st_StaticProc)) |
| 1660 | hash_ptr->sym_ptr = psym; |
| 1661 | |
| 1662 | /* push or pop a scope if appropriate. */ |
| 1663 | switch (type) |
| 1664 | { |
| 1665 | default: |
| 1666 | break; |
| 1667 | |
| 1668 | case st_File: /* beginning of file */ |
| 1669 | case st_Proc: /* procedure */ |
| 1670 | case st_StaticProc: /* static procedure */ |
| 1671 | case st_Block: /* begin scope */ |
| 1672 | pscope = allocate_scope (); |
| 1673 | pscope->prev = cur_file_ptr->cur_scope; |
| 1674 | pscope->lsym = psym; |
| 1675 | pscope->type = type; |
| 1676 | cur_file_ptr->cur_scope = pscope; |
| 1677 | |
| 1678 | if (type != st_File) |
| 1679 | scope_delta = 1; |
| 1680 | |
| 1681 | /* For every block type except file, struct, union, or |
| 1682 | enumeration blocks, push a level on the tag stack. We omit |
| 1683 | file types, so that tags can span file boundaries. */ |
| 1684 | if (type != st_File && storage != sc_Info) |
| 1685 | { |
| 1686 | ptag_head = allocate_thead (); |
| 1687 | ptag_head->first_tag = 0; |
| 1688 | ptag_head->prev = cur_tag_head; |
| 1689 | cur_tag_head = ptag_head; |
| 1690 | } |
| 1691 | break; |
| 1692 | |
| 1693 | case st_End: |
| 1694 | pscope = cur_file_ptr->cur_scope; |
| 1695 | if (pscope == (scope_t *) NULL) |
| 1696 | as_fatal (_("too many st_End's")); |
| 1697 | else |
| 1698 | { |
| 1699 | st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st; |
| 1700 | |
| 1701 | psym->begin_ptr = pscope->lsym; |
| 1702 | |
| 1703 | if (begin_type != st_File) |
| 1704 | scope_delta = -1; |
| 1705 | |
| 1706 | /* Except for file, structure, union, or enumeration end |
| 1707 | blocks remove all tags created within this scope. */ |
| 1708 | if (begin_type != st_File && storage != sc_Info) |
| 1709 | { |
| 1710 | ptag_head = cur_tag_head; |
| 1711 | cur_tag_head = ptag_head->prev; |
| 1712 | |
| 1713 | for (ptag = ptag_head->first_tag; |
| 1714 | ptag != (tag_t *) NULL; |
| 1715 | ptag = ptag_next) |
| 1716 | { |
| 1717 | if (ptag->forward_ref != (forward_t *) NULL) |
| 1718 | add_unknown_tag (ptag); |
| 1719 | |
| 1720 | ptag_next = ptag->same_block; |
| 1721 | ptag->hash_ptr->tag_ptr = ptag->same_name; |
| 1722 | free_tag (ptag); |
| 1723 | } |
| 1724 | |
| 1725 | free_thead (ptag_head); |
| 1726 | } |
| 1727 | |
| 1728 | cur_file_ptr->cur_scope = pscope->prev; |
| 1729 | |
| 1730 | /* block begin gets next sym #. This is set when we know |
| 1731 | the symbol index value. */ |
| 1732 | |
| 1733 | /* Functions push two or more aux words as follows: |
| 1734 | 1st word: index+1 of the end symbol (filled in later). |
| 1735 | 2nd word: type of the function (plus any aux words needed). |
| 1736 | Also, tie the external pointer back to the function begin symbol. */ |
| 1737 | if (begin_type != st_File && begin_type != st_Block) |
| 1738 | { |
| 1739 | symint_t ty; |
| 1740 | varray_t *svp = &cur_file_ptr->aux_syms; |
| 1741 | |
| 1742 | pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0); |
| 1743 | pscope->lsym->index_ptr = |
| 1744 | &svp->last->datum->aux[svp->objects_last_page - 1]; |
| 1745 | ty = add_aux_sym_tir (&last_func_type_info, |
| 1746 | hash_no, |
| 1747 | &cur_file_ptr->thash_head[0]); |
| 1748 | |
| 1749 | /* This seems to be unnecessary. I'm not even sure what it is |
| 1750 | * intended to do. It's from mips-tfile. |
| 1751 | * if (last_func_sym_value != (symbolS *) NULL) |
| 1752 | * { |
| 1753 | * last_func_sym_value->ifd = cur_file_ptr->file_index; |
| 1754 | * last_func_sym_value->index = ty; |
| 1755 | * } |
| 1756 | */ |
| 1757 | } |
| 1758 | |
| 1759 | free_scope (pscope); |
| 1760 | } |
| 1761 | } |
| 1762 | |
| 1763 | cur_file_ptr->nested_scopes += scope_delta; |
| 1764 | |
| 1765 | #ifdef ECOFF_DEBUG |
| 1766 | if (debug && type != st_File |
| 1767 | && (debug > 2 || type == st_Block || type == st_End |
| 1768 | || type == st_Proc || type == st_StaticProc)) |
| 1769 | { |
| 1770 | char *sc_str = sc_to_string (storage); |
| 1771 | char *st_str = st_to_string (type); |
| 1772 | int depth = cur_file_ptr->nested_scopes + (scope_delta < 0); |
| 1773 | |
| 1774 | fprintf (stderr, |
| 1775 | "\tlsym\tv= %10ld, depth= %2d, sc= %-12s", |
| 1776 | value, depth, sc_str); |
| 1777 | |
| 1778 | if (str_start && str_end_p1 - str_start > 0) |
| 1779 | fprintf (stderr, " st= %-11s name= %.*s\n", |
| 1780 | st_str, str_end_p1 - str_start, str_start); |
| 1781 | else |
| 1782 | { |
| 1783 | unsigned long len = strlen (st_str); |
| 1784 | fprintf (stderr, " st= %.*s\n", len - 1, st_str); |
| 1785 | } |
| 1786 | } |
| 1787 | #endif |
| 1788 | |
| 1789 | return psym; |
| 1790 | } |
| 1791 | \f |
| 1792 | /* Add an auxiliary symbol (passing a symint). This is actually used |
| 1793 | for integral aux types, not just symints. */ |
| 1794 | |
| 1795 | static symint_t |
| 1796 | add_aux_sym_symint (symint_t aux_word /* auxiliary information word */) |
| 1797 | { |
| 1798 | register varray_t *vp; |
| 1799 | register aux_t *aux_ptr; |
| 1800 | |
| 1801 | if (cur_file_ptr == (efdr_t *) NULL) |
| 1802 | as_fatal (_("no current file pointer")); |
| 1803 | |
| 1804 | vp = &cur_file_ptr->aux_syms; |
| 1805 | |
| 1806 | if (vp->objects_last_page == vp->objects_per_page) |
| 1807 | add_varray_page (vp); |
| 1808 | |
| 1809 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; |
| 1810 | aux_ptr->type = aux_isym; |
| 1811 | aux_ptr->data.isym = aux_word; |
| 1812 | |
| 1813 | return vp->num_allocated++; |
| 1814 | } |
| 1815 | |
| 1816 | /* Add an auxiliary symbol (passing a file/symbol index combo). */ |
| 1817 | |
| 1818 | static symint_t |
| 1819 | add_aux_sym_rndx (int file_index, symint_t sym_index) |
| 1820 | { |
| 1821 | register varray_t *vp; |
| 1822 | register aux_t *aux_ptr; |
| 1823 | |
| 1824 | if (cur_file_ptr == (efdr_t *) NULL) |
| 1825 | as_fatal (_("no current file pointer")); |
| 1826 | |
| 1827 | vp = &cur_file_ptr->aux_syms; |
| 1828 | |
| 1829 | if (vp->objects_last_page == vp->objects_per_page) |
| 1830 | add_varray_page (vp); |
| 1831 | |
| 1832 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; |
| 1833 | aux_ptr->type = aux_rndx; |
| 1834 | aux_ptr->data.rndx.rfd = file_index; |
| 1835 | aux_ptr->data.rndx.index = sym_index; |
| 1836 | |
| 1837 | return vp->num_allocated++; |
| 1838 | } |
| 1839 | \f |
| 1840 | /* Add an auxiliary symbol (passing the basic type and possibly |
| 1841 | type qualifiers). */ |
| 1842 | |
| 1843 | static symint_t |
| 1844 | add_aux_sym_tir (type_info_t *t, /* current type information */ |
| 1845 | hash_state_t state, /* whether to hash type or not */ |
| 1846 | thash_t **hash_tbl /* pointer to hash table to use */) |
| 1847 | { |
| 1848 | register varray_t *vp; |
| 1849 | register aux_t *aux_ptr; |
| 1850 | static AUXU init_aux; |
| 1851 | symint_t ret; |
| 1852 | int i; |
| 1853 | AUXU aux; |
| 1854 | |
| 1855 | if (cur_file_ptr == (efdr_t *) NULL) |
| 1856 | as_fatal (_("no current file pointer")); |
| 1857 | |
| 1858 | vp = &cur_file_ptr->aux_syms; |
| 1859 | |
| 1860 | aux = init_aux; |
| 1861 | aux.ti.bt = (int) t->basic_type; |
| 1862 | aux.ti.continued = 0; |
| 1863 | aux.ti.fBitfield = t->bitfield; |
| 1864 | |
| 1865 | aux.ti.tq0 = (int) t->type_qualifiers[0]; |
| 1866 | aux.ti.tq1 = (int) t->type_qualifiers[1]; |
| 1867 | aux.ti.tq2 = (int) t->type_qualifiers[2]; |
| 1868 | aux.ti.tq3 = (int) t->type_qualifiers[3]; |
| 1869 | aux.ti.tq4 = (int) t->type_qualifiers[4]; |
| 1870 | aux.ti.tq5 = (int) t->type_qualifiers[5]; |
| 1871 | |
| 1872 | /* For anything that adds additional information, we must not hash, |
| 1873 | so check here, and reset our state. */ |
| 1874 | |
| 1875 | if (state != hash_no |
| 1876 | && (t->type_qualifiers[0] == tq_Array |
| 1877 | || t->type_qualifiers[1] == tq_Array |
| 1878 | || t->type_qualifiers[2] == tq_Array |
| 1879 | || t->type_qualifiers[3] == tq_Array |
| 1880 | || t->type_qualifiers[4] == tq_Array |
| 1881 | || t->type_qualifiers[5] == tq_Array |
| 1882 | || t->basic_type == bt_Struct |
| 1883 | || t->basic_type == bt_Union |
| 1884 | || t->basic_type == bt_Enum |
| 1885 | || t->bitfield |
| 1886 | || t->num_dims > 0)) |
| 1887 | state = hash_no; |
| 1888 | |
| 1889 | /* See if we can hash this type, and save some space, but some types |
| 1890 | can't be hashed (because they contain arrays or continuations), |
| 1891 | and others can be put into the hash list, but cannot use existing |
| 1892 | types because other aux entries precede this one. */ |
| 1893 | |
| 1894 | if (state != hash_no) |
| 1895 | { |
| 1896 | register thash_t *hash_ptr; |
| 1897 | register symint_t hi; |
| 1898 | |
| 1899 | hi = aux.isym & ((1 << HASHBITS) - 1); |
| 1900 | hi %= THASH_SIZE; |
| 1901 | |
| 1902 | for (hash_ptr = hash_tbl[hi]; |
| 1903 | hash_ptr != (thash_t *)0; |
| 1904 | hash_ptr = hash_ptr->next) |
| 1905 | { |
| 1906 | if (aux.isym == hash_ptr->type.isym) |
| 1907 | break; |
| 1908 | } |
| 1909 | |
| 1910 | if (hash_ptr != (thash_t *) NULL && state == hash_yes) |
| 1911 | return hash_ptr->indx; |
| 1912 | |
| 1913 | if (hash_ptr == (thash_t *) NULL) |
| 1914 | { |
| 1915 | hash_ptr = allocate_thash (); |
| 1916 | hash_ptr->next = hash_tbl[hi]; |
| 1917 | hash_ptr->type = aux; |
| 1918 | hash_ptr->indx = vp->num_allocated; |
| 1919 | hash_tbl[hi] = hash_ptr; |
| 1920 | } |
| 1921 | } |
| 1922 | |
| 1923 | /* Everything is set up, add the aux symbol. */ |
| 1924 | if (vp->objects_last_page == vp->objects_per_page) |
| 1925 | add_varray_page (vp); |
| 1926 | |
| 1927 | aux_ptr = &vp->last->datum->aux[vp->objects_last_page++]; |
| 1928 | aux_ptr->type = aux_tir; |
| 1929 | aux_ptr->data = aux; |
| 1930 | |
| 1931 | ret = vp->num_allocated++; |
| 1932 | |
| 1933 | /* Add bitfield length if it exists. |
| 1934 | |
| 1935 | NOTE: Mips documentation claims bitfield goes at the end of the |
| 1936 | AUX record, but the DECstation compiler emits it here. |
| 1937 | (This would only make a difference for enum bitfields.) |
| 1938 | |
| 1939 | Also note: We use the last size given since gcc may emit 2 |
| 1940 | for an enum bitfield. */ |
| 1941 | |
| 1942 | if (t->bitfield) |
| 1943 | (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]); |
| 1944 | |
| 1945 | /* Add tag information if needed. Structure, union, and enum |
| 1946 | references add 2 aux symbols: a [file index, symbol index] |
| 1947 | pointer to the structure type, and the current file index. */ |
| 1948 | |
| 1949 | if (t->basic_type == bt_Struct |
| 1950 | || t->basic_type == bt_Union |
| 1951 | || t->basic_type == bt_Enum) |
| 1952 | { |
| 1953 | register symint_t file_index = t->tag_ptr->ifd; |
| 1954 | register localsym_t *sym = t->tag_ptr->sym; |
| 1955 | register forward_t *forward_ref = allocate_forward (); |
| 1956 | |
| 1957 | if (sym != (localsym_t *) NULL) |
| 1958 | { |
| 1959 | forward_ref->next = sym->forward_ref; |
| 1960 | sym->forward_ref = forward_ref; |
| 1961 | } |
| 1962 | else |
| 1963 | { |
| 1964 | forward_ref->next = t->tag_ptr->forward_ref; |
| 1965 | t->tag_ptr->forward_ref = forward_ref; |
| 1966 | } |
| 1967 | |
| 1968 | (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil); |
| 1969 | forward_ref->index_ptr |
| 1970 | = &vp->last->datum->aux[vp->objects_last_page - 1]; |
| 1971 | |
| 1972 | (void) add_aux_sym_symint (file_index); |
| 1973 | forward_ref->ifd_ptr |
| 1974 | = &vp->last->datum->aux[vp->objects_last_page - 1]; |
| 1975 | } |
| 1976 | |
| 1977 | /* Add information about array bounds if they exist. */ |
| 1978 | for (i = 0; i < t->num_dims; i++) |
| 1979 | { |
| 1980 | (void) add_aux_sym_rndx (ST_RFDESCAPE, |
| 1981 | cur_file_ptr->int_type); |
| 1982 | |
| 1983 | (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/ |
| 1984 | (void) add_aux_sym_symint ((symint_t) 0); /* low bound */ |
| 1985 | (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/ |
| 1986 | (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */ |
| 1987 | ? 0 |
| 1988 | : (t->sizes[i] * 8) / t->dimensions[i]); |
| 1989 | }; |
| 1990 | |
| 1991 | /* NOTE: Mips documentation claims that the bitfield width goes here. |
| 1992 | But it needs to be emitted earlier. */ |
| 1993 | |
| 1994 | return ret; |
| 1995 | } |
| 1996 | \f |
| 1997 | /* Add a tag to the tag table (unless it already exists). */ |
| 1998 | |
| 1999 | static tag_t * |
| 2000 | get_tag (const char *tag, /* tag name */ |
| 2001 | localsym_t *sym, /* tag start block */ |
| 2002 | bt_t basic_type /* bt_Struct, bt_Union, or bt_Enum */) |
| 2003 | { |
| 2004 | shash_t *hash_ptr; |
| 2005 | const char *err; |
| 2006 | tag_t *tag_ptr; |
| 2007 | |
| 2008 | if (cur_file_ptr == (efdr_t *) NULL) |
| 2009 | as_fatal (_("no current file pointer")); |
| 2010 | |
| 2011 | hash_ptr = (shash_t *) hash_find (tag_hash, tag); |
| 2012 | |
| 2013 | if (hash_ptr != (shash_t *) NULL |
| 2014 | && hash_ptr->tag_ptr != (tag_t *) NULL) |
| 2015 | { |
| 2016 | tag_ptr = hash_ptr->tag_ptr; |
| 2017 | if (sym != (localsym_t *) NULL) |
| 2018 | { |
| 2019 | tag_ptr->basic_type = basic_type; |
| 2020 | tag_ptr->ifd = cur_file_ptr->file_index; |
| 2021 | tag_ptr->sym = sym; |
| 2022 | } |
| 2023 | return tag_ptr; |
| 2024 | } |
| 2025 | |
| 2026 | if (hash_ptr == (shash_t *) NULL) |
| 2027 | { |
| 2028 | char *perm; |
| 2029 | |
| 2030 | perm = xstrdup (tag); |
| 2031 | hash_ptr = allocate_shash (); |
| 2032 | err = hash_insert (tag_hash, perm, (char *) hash_ptr); |
| 2033 | if (err) |
| 2034 | as_fatal (_("inserting \"%s\" into tag hash table: %s"), |
| 2035 | tag, err); |
| 2036 | hash_ptr->string = perm; |
| 2037 | } |
| 2038 | |
| 2039 | tag_ptr = allocate_tag (); |
| 2040 | tag_ptr->forward_ref = (forward_t *) NULL; |
| 2041 | tag_ptr->hash_ptr = hash_ptr; |
| 2042 | tag_ptr->same_name = hash_ptr->tag_ptr; |
| 2043 | tag_ptr->basic_type = basic_type; |
| 2044 | tag_ptr->sym = sym; |
| 2045 | tag_ptr->ifd = ((sym == (localsym_t *) NULL) |
| 2046 | ? (symint_t) -1 |
| 2047 | : cur_file_ptr->file_index); |
| 2048 | tag_ptr->same_block = cur_tag_head->first_tag; |
| 2049 | |
| 2050 | cur_tag_head->first_tag = tag_ptr; |
| 2051 | hash_ptr->tag_ptr = tag_ptr; |
| 2052 | |
| 2053 | return tag_ptr; |
| 2054 | } |
| 2055 | \f |
| 2056 | /* Add an unknown {struct, union, enum} tag. */ |
| 2057 | |
| 2058 | static void |
| 2059 | add_unknown_tag (tag_t *ptag /* pointer to tag information */) |
| 2060 | { |
| 2061 | shash_t *hash_ptr = ptag->hash_ptr; |
| 2062 | char *name = hash_ptr->string; |
| 2063 | localsym_t *sym; |
| 2064 | forward_t **pf; |
| 2065 | |
| 2066 | #ifdef ECOFF_DEBUG |
| 2067 | if (debug > 1) |
| 2068 | { |
| 2069 | char *agg_type = "{unknown aggregate type}"; |
| 2070 | switch (ptag->basic_type) |
| 2071 | { |
| 2072 | case bt_Struct: agg_type = "struct"; break; |
| 2073 | case bt_Union: agg_type = "union"; break; |
| 2074 | case bt_Enum: agg_type = "enum"; break; |
| 2075 | default: break; |
| 2076 | } |
| 2077 | |
| 2078 | fprintf (stderr, "unknown %s %.*s found\n", agg_type, |
| 2079 | hash_ptr->len, name_start); |
| 2080 | } |
| 2081 | #endif |
| 2082 | |
| 2083 | sym = add_ecoff_symbol (name, |
| 2084 | st_Block, |
| 2085 | sc_Info, |
| 2086 | (symbolS *) NULL, |
| 2087 | (bfd_vma) 0, |
| 2088 | (symint_t) 0, |
| 2089 | (symint_t) 0); |
| 2090 | |
| 2091 | (void) add_ecoff_symbol (name, |
| 2092 | st_End, |
| 2093 | sc_Info, |
| 2094 | (symbolS *) NULL, |
| 2095 | (bfd_vma) 0, |
| 2096 | (symint_t) 0, |
| 2097 | (symint_t) 0); |
| 2098 | |
| 2099 | for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next) |
| 2100 | ; |
| 2101 | *pf = ptag->forward_ref; |
| 2102 | } |
| 2103 | \f |
| 2104 | /* Add a procedure to the current file's list of procedures, and record |
| 2105 | this is the current procedure. */ |
| 2106 | |
| 2107 | static void |
| 2108 | add_procedure (char *func /* func name */) |
| 2109 | { |
| 2110 | register varray_t *vp; |
| 2111 | register proc_t *new_proc_ptr; |
| 2112 | symbolS *sym; |
| 2113 | |
| 2114 | #ifdef ECOFF_DEBUG |
| 2115 | if (debug) |
| 2116 | fputc ('\n', stderr); |
| 2117 | #endif |
| 2118 | |
| 2119 | if (cur_file_ptr == (efdr_t *) NULL) |
| 2120 | as_fatal (_("no current file pointer")); |
| 2121 | |
| 2122 | vp = &cur_file_ptr->procs; |
| 2123 | |
| 2124 | if (vp->objects_last_page == vp->objects_per_page) |
| 2125 | add_varray_page (vp); |
| 2126 | |
| 2127 | cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++]; |
| 2128 | |
| 2129 | if (first_proc_ptr == (proc_t *) NULL) |
| 2130 | first_proc_ptr = new_proc_ptr; |
| 2131 | |
| 2132 | vp->num_allocated++; |
| 2133 | |
| 2134 | new_proc_ptr->pdr.isym = -1; |
| 2135 | new_proc_ptr->pdr.iline = -1; |
| 2136 | new_proc_ptr->pdr.lnLow = -1; |
| 2137 | new_proc_ptr->pdr.lnHigh = -1; |
| 2138 | |
| 2139 | /* Set the BSF_FUNCTION flag for the symbol. */ |
| 2140 | sym = symbol_find_or_make (func); |
| 2141 | symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; |
| 2142 | |
| 2143 | /* Push the start of the function. */ |
| 2144 | new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text, |
| 2145 | sym, (bfd_vma) 0, (symint_t) 0, |
| 2146 | (symint_t) 0); |
| 2147 | |
| 2148 | ++proc_cnt; |
| 2149 | |
| 2150 | /* Fill in the linenos preceding the .ent, if any. */ |
| 2151 | if (noproc_lineno != (lineno_list_t *) NULL) |
| 2152 | { |
| 2153 | lineno_list_t *l; |
| 2154 | |
| 2155 | for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next) |
| 2156 | l->proc = new_proc_ptr; |
| 2157 | *last_lineno_ptr = noproc_lineno; |
| 2158 | while (*last_lineno_ptr != NULL) |
| 2159 | { |
| 2160 | last_lineno = *last_lineno_ptr; |
| 2161 | last_lineno_ptr = &last_lineno->next; |
| 2162 | } |
| 2163 | noproc_lineno = (lineno_list_t *) NULL; |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | symbolS * |
| 2168 | ecoff_get_cur_proc_sym (void) |
| 2169 | { |
| 2170 | return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL); |
| 2171 | } |
| 2172 | \f |
| 2173 | /* Add a new filename, and set up all of the file relative |
| 2174 | virtual arrays (strings, symbols, aux syms, etc.). Record |
| 2175 | where the current file structure lives. */ |
| 2176 | |
| 2177 | static void |
| 2178 | add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake) |
| 2179 | { |
| 2180 | register int first_ch; |
| 2181 | register efdr_t *fil_ptr; |
| 2182 | |
| 2183 | #ifdef ECOFF_DEBUG |
| 2184 | if (debug) |
| 2185 | fprintf (stderr, "\tfile\t%.*s\n", len, file_start); |
| 2186 | #endif |
| 2187 | |
| 2188 | /* If the file name is NULL, then no .file symbol appeared, and we |
| 2189 | want to use the actual file name. */ |
| 2190 | if (file_name == (const char *) NULL) |
| 2191 | { |
| 2192 | char *file; |
| 2193 | |
| 2194 | if (first_file != (efdr_t *) NULL) |
| 2195 | as_fatal (_("fake .file after real one")); |
| 2196 | as_where (&file, (unsigned int *) NULL); |
| 2197 | file_name = (const char *) file; |
| 2198 | |
| 2199 | /* Automatically generate ECOFF debugging information, since I |
| 2200 | think that's what other ECOFF assemblers do. We don't do |
| 2201 | this if we see a .file directive with a string, since that |
| 2202 | implies that some sort of debugging information is being |
| 2203 | provided. */ |
| 2204 | if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED) |
| 2205 | debug_type = DEBUG_ECOFF; |
| 2206 | } |
| 2207 | else if (debug_type == DEBUG_UNSPECIFIED) |
| 2208 | debug_type = DEBUG_NONE; |
| 2209 | |
| 2210 | #ifndef NO_LISTING |
| 2211 | if (listing) |
| 2212 | listing_source_file (file_name); |
| 2213 | #endif |
| 2214 | |
| 2215 | current_stabs_filename = file_name; |
| 2216 | |
| 2217 | /* If we're creating stabs, then we don't actually make a new FDR. |
| 2218 | Instead, we just create a stabs symbol. */ |
| 2219 | if (stabs_seen) |
| 2220 | { |
| 2221 | (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil, |
| 2222 | symbol_new ("L0\001", now_seg, |
| 2223 | (valueT) frag_now_fix (), |
| 2224 | frag_now), |
| 2225 | (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL)); |
| 2226 | return; |
| 2227 | } |
| 2228 | |
| 2229 | first_ch = *file_name; |
| 2230 | |
| 2231 | /* FIXME: We can't safely merge files which have line number |
| 2232 | information (fMerge will be zero in this case). Otherwise, we |
| 2233 | get incorrect line number debugging info. See for instance |
| 2234 | ecoff_build_lineno, which will end up setting all file->fdr.* |
| 2235 | fields multiple times, resulting in incorrect debug info. In |
| 2236 | order to make this work right, all line number and symbol info |
| 2237 | for the same source file has to be adjacent in the object file, |
| 2238 | so that a single file descriptor can be used to point to them. |
| 2239 | This would require maintaining file specific lists of line |
| 2240 | numbers and symbols for each file, so that they can be merged |
| 2241 | together (or output together) when two .file pseudo-ops are |
| 2242 | merged into one file descriptor. */ |
| 2243 | |
| 2244 | /* See if the file has already been created. */ |
| 2245 | for (fil_ptr = first_file; |
| 2246 | fil_ptr != (efdr_t *) NULL; |
| 2247 | fil_ptr = fil_ptr->next_file) |
| 2248 | { |
| 2249 | if (first_ch == fil_ptr->name[0] |
| 2250 | && strcmp (file_name, fil_ptr->name) == 0 |
| 2251 | && fil_ptr->fdr.fMerge) |
| 2252 | { |
| 2253 | cur_file_ptr = fil_ptr; |
| 2254 | if (! fake) |
| 2255 | cur_file_ptr->fake = 0; |
| 2256 | break; |
| 2257 | } |
| 2258 | } |
| 2259 | |
| 2260 | /* If this is a new file, create it. */ |
| 2261 | if (fil_ptr == (efdr_t *) NULL) |
| 2262 | { |
| 2263 | if (file_desc.objects_last_page == file_desc.objects_per_page) |
| 2264 | add_varray_page (&file_desc); |
| 2265 | |
| 2266 | fil_ptr = cur_file_ptr = |
| 2267 | &file_desc.last->datum->file[file_desc.objects_last_page++]; |
| 2268 | *fil_ptr = init_file; |
| 2269 | |
| 2270 | fil_ptr->file_index = current_file_idx++; |
| 2271 | ++file_desc.num_allocated; |
| 2272 | |
| 2273 | fil_ptr->fake = fake; |
| 2274 | |
| 2275 | /* Allocate the string hash table. */ |
| 2276 | fil_ptr->str_hash = hash_new (); |
| 2277 | |
| 2278 | /* Make sure 0 byte in string table is null */ |
| 2279 | add_string (&fil_ptr->strings, |
| 2280 | fil_ptr->str_hash, |
| 2281 | "", |
| 2282 | (shash_t **)0); |
| 2283 | |
| 2284 | if (strlen (file_name) > PAGE_USIZE - 2) |
| 2285 | as_fatal (_("filename goes over one page boundary")); |
| 2286 | |
| 2287 | /* Push the start of the filename. We assume that the filename |
| 2288 | will be stored at string offset 1. */ |
| 2289 | (void) add_ecoff_symbol (file_name, st_File, sc_Text, |
| 2290 | (symbolS *) NULL, (bfd_vma) 0, |
| 2291 | (symint_t) 0, (symint_t) 0); |
| 2292 | fil_ptr->fdr.rss = 1; |
| 2293 | fil_ptr->name = &fil_ptr->strings.last->datum->byte[1]; |
| 2294 | |
| 2295 | /* Update the linked list of file descriptors. */ |
| 2296 | *last_file_ptr = fil_ptr; |
| 2297 | last_file_ptr = &fil_ptr->next_file; |
| 2298 | |
| 2299 | /* Add void & int types to the file (void should be first to catch |
| 2300 | errant 0's within the index fields). */ |
| 2301 | fil_ptr->void_type = add_aux_sym_tir (&void_type_info, |
| 2302 | hash_yes, |
| 2303 | &cur_file_ptr->thash_head[0]); |
| 2304 | |
| 2305 | fil_ptr->int_type = add_aux_sym_tir (&int_type_info, |
| 2306 | hash_yes, |
| 2307 | &cur_file_ptr->thash_head[0]); |
| 2308 | } |
| 2309 | } |
| 2310 | |
| 2311 | /* This function is called when the assembler notices a preprocessor |
| 2312 | directive switching to a new file. This will not happen in |
| 2313 | compiler output, only in hand coded assembler. */ |
| 2314 | |
| 2315 | void |
| 2316 | ecoff_new_file (const char *name, int appfile ATTRIBUTE_UNUSED) |
| 2317 | { |
| 2318 | if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0) |
| 2319 | return; |
| 2320 | add_file (name, 0, 0); |
| 2321 | |
| 2322 | /* This is a hand coded assembler file, so automatically turn on |
| 2323 | debugging information. */ |
| 2324 | if (debug_type == DEBUG_UNSPECIFIED) |
| 2325 | debug_type = DEBUG_ECOFF; |
| 2326 | } |
| 2327 | \f |
| 2328 | #ifdef ECOFF_DEBUG |
| 2329 | |
| 2330 | /* Convert storage class to string. */ |
| 2331 | |
| 2332 | static char * |
| 2333 | sc_to_string (storage_class) |
| 2334 | sc_t storage_class; |
| 2335 | { |
| 2336 | switch (storage_class) |
| 2337 | { |
| 2338 | case sc_Nil: return "Nil,"; |
| 2339 | case sc_Text: return "Text,"; |
| 2340 | case sc_Data: return "Data,"; |
| 2341 | case sc_Bss: return "Bss,"; |
| 2342 | case sc_Register: return "Register,"; |
| 2343 | case sc_Abs: return "Abs,"; |
| 2344 | case sc_Undefined: return "Undefined,"; |
| 2345 | case sc_CdbLocal: return "CdbLocal,"; |
| 2346 | case sc_Bits: return "Bits,"; |
| 2347 | case sc_CdbSystem: return "CdbSystem,"; |
| 2348 | case sc_RegImage: return "RegImage,"; |
| 2349 | case sc_Info: return "Info,"; |
| 2350 | case sc_UserStruct: return "UserStruct,"; |
| 2351 | case sc_SData: return "SData,"; |
| 2352 | case sc_SBss: return "SBss,"; |
| 2353 | case sc_RData: return "RData,"; |
| 2354 | case sc_Var: return "Var,"; |
| 2355 | case sc_Common: return "Common,"; |
| 2356 | case sc_SCommon: return "SCommon,"; |
| 2357 | case sc_VarRegister: return "VarRegister,"; |
| 2358 | case sc_Variant: return "Variant,"; |
| 2359 | case sc_SUndefined: return "SUndefined,"; |
| 2360 | case sc_Init: return "Init,"; |
| 2361 | case sc_Max: return "Max,"; |
| 2362 | } |
| 2363 | |
| 2364 | return "???,"; |
| 2365 | } |
| 2366 | |
| 2367 | #endif /* DEBUG */ |
| 2368 | \f |
| 2369 | #ifdef ECOFF_DEBUG |
| 2370 | |
| 2371 | /* Convert symbol type to string. */ |
| 2372 | |
| 2373 | static char * |
| 2374 | st_to_string (symbol_type) |
| 2375 | st_t symbol_type; |
| 2376 | { |
| 2377 | switch (symbol_type) |
| 2378 | { |
| 2379 | case st_Nil: return "Nil,"; |
| 2380 | case st_Global: return "Global,"; |
| 2381 | case st_Static: return "Static,"; |
| 2382 | case st_Param: return "Param,"; |
| 2383 | case st_Local: return "Local,"; |
| 2384 | case st_Label: return "Label,"; |
| 2385 | case st_Proc: return "Proc,"; |
| 2386 | case st_Block: return "Block,"; |
| 2387 | case st_End: return "End,"; |
| 2388 | case st_Member: return "Member,"; |
| 2389 | case st_Typedef: return "Typedef,"; |
| 2390 | case st_File: return "File,"; |
| 2391 | case st_RegReloc: return "RegReloc,"; |
| 2392 | case st_Forward: return "Forward,"; |
| 2393 | case st_StaticProc: return "StaticProc,"; |
| 2394 | case st_Constant: return "Constant,"; |
| 2395 | case st_Str: return "String,"; |
| 2396 | case st_Number: return "Number,"; |
| 2397 | case st_Expr: return "Expr,"; |
| 2398 | case st_Type: return "Type,"; |
| 2399 | case st_Max: return "Max,"; |
| 2400 | } |
| 2401 | |
| 2402 | return "???,"; |
| 2403 | } |
| 2404 | |
| 2405 | #endif /* DEBUG */ |
| 2406 | \f |
| 2407 | /* Parse .begin directives which have a label as the first argument |
| 2408 | which gives the location of the start of the block. */ |
| 2409 | |
| 2410 | void |
| 2411 | ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED) |
| 2412 | { |
| 2413 | char *name; |
| 2414 | char name_end; |
| 2415 | |
| 2416 | if (cur_file_ptr == (efdr_t *) NULL) |
| 2417 | { |
| 2418 | as_warn (_(".begin directive without a preceding .file directive")); |
| 2419 | demand_empty_rest_of_line (); |
| 2420 | return; |
| 2421 | } |
| 2422 | |
| 2423 | if (cur_proc_ptr == (proc_t *) NULL) |
| 2424 | { |
| 2425 | as_warn (_(".begin directive without a preceding .ent directive")); |
| 2426 | demand_empty_rest_of_line (); |
| 2427 | return; |
| 2428 | } |
| 2429 | |
| 2430 | name = input_line_pointer; |
| 2431 | name_end = get_symbol_end (); |
| 2432 | |
| 2433 | (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text, |
| 2434 | symbol_find_or_make (name), |
| 2435 | (bfd_vma) 0, (symint_t) 0, (symint_t) 0); |
| 2436 | |
| 2437 | *input_line_pointer = name_end; |
| 2438 | |
| 2439 | /* The line number follows, but we don't use it. */ |
| 2440 | (void) get_absolute_expression (); |
| 2441 | demand_empty_rest_of_line (); |
| 2442 | } |
| 2443 | \f |
| 2444 | /* Parse .bend directives which have a label as the first argument |
| 2445 | which gives the location of the end of the block. */ |
| 2446 | |
| 2447 | void |
| 2448 | ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED) |
| 2449 | { |
| 2450 | char *name; |
| 2451 | char name_end; |
| 2452 | symbolS *endsym; |
| 2453 | |
| 2454 | if (cur_file_ptr == (efdr_t *) NULL) |
| 2455 | { |
| 2456 | as_warn (_(".bend directive without a preceding .file directive")); |
| 2457 | demand_empty_rest_of_line (); |
| 2458 | return; |
| 2459 | } |
| 2460 | |
| 2461 | if (cur_proc_ptr == (proc_t *) NULL) |
| 2462 | { |
| 2463 | as_warn (_(".bend directive without a preceding .ent directive")); |
| 2464 | demand_empty_rest_of_line (); |
| 2465 | return; |
| 2466 | } |
| 2467 | |
| 2468 | name = input_line_pointer; |
| 2469 | name_end = get_symbol_end (); |
| 2470 | |
| 2471 | /* The value is the distance between the .bend directive and the |
| 2472 | corresponding symbol. We fill in the offset when we write out |
| 2473 | the symbol. */ |
| 2474 | endsym = symbol_find (name); |
| 2475 | if (endsym == (symbolS *) NULL) |
| 2476 | as_warn (_(".bend directive names unknown symbol")); |
| 2477 | else |
| 2478 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym, |
| 2479 | (bfd_vma) 0, (symint_t) 0, (symint_t) 0); |
| 2480 | |
| 2481 | *input_line_pointer = name_end; |
| 2482 | |
| 2483 | /* The line number follows, but we don't use it. */ |
| 2484 | (void) get_absolute_expression (); |
| 2485 | demand_empty_rest_of_line (); |
| 2486 | } |
| 2487 | \f |
| 2488 | /* COFF debugging information is provided as a series of directives |
| 2489 | (.def, .scl, etc.). We build up information as we read the |
| 2490 | directives in the following static variables, and file it away when |
| 2491 | we reach the .endef directive. */ |
| 2492 | static char *coff_sym_name; |
| 2493 | static type_info_t coff_type; |
| 2494 | static sc_t coff_storage_class; |
| 2495 | static st_t coff_symbol_typ; |
| 2496 | static int coff_is_function; |
| 2497 | static char *coff_tag; |
| 2498 | static valueT coff_value; |
| 2499 | static symbolS *coff_sym_value; |
| 2500 | static bfd_vma coff_sym_addend; |
| 2501 | static int coff_inside_enumeration; |
| 2502 | |
| 2503 | /* Handle a .def directive: start defining a symbol. */ |
| 2504 | |
| 2505 | void |
| 2506 | ecoff_directive_def (int ignore ATTRIBUTE_UNUSED) |
| 2507 | { |
| 2508 | char *name; |
| 2509 | char name_end; |
| 2510 | |
| 2511 | ecoff_debugging_seen = 1; |
| 2512 | |
| 2513 | SKIP_WHITESPACE (); |
| 2514 | |
| 2515 | name = input_line_pointer; |
| 2516 | name_end = get_symbol_end (); |
| 2517 | |
| 2518 | if (coff_sym_name != (char *) NULL) |
| 2519 | as_warn (_(".def pseudo-op used inside of .def/.endef; ignored")); |
| 2520 | else if (*name == '\0') |
| 2521 | as_warn (_("empty symbol name in .def; ignored")); |
| 2522 | else |
| 2523 | { |
| 2524 | if (coff_sym_name != (char *) NULL) |
| 2525 | free (coff_sym_name); |
| 2526 | if (coff_tag != (char *) NULL) |
| 2527 | free (coff_tag); |
| 2528 | |
| 2529 | coff_sym_name = xstrdup (name); |
| 2530 | coff_type = type_info_init; |
| 2531 | coff_storage_class = sc_Nil; |
| 2532 | coff_symbol_typ = st_Nil; |
| 2533 | coff_is_function = 0; |
| 2534 | coff_tag = (char *) NULL; |
| 2535 | coff_value = 0; |
| 2536 | coff_sym_value = (symbolS *) NULL; |
| 2537 | coff_sym_addend = 0; |
| 2538 | } |
| 2539 | |
| 2540 | *input_line_pointer = name_end; |
| 2541 | |
| 2542 | demand_empty_rest_of_line (); |
| 2543 | } |
| 2544 | |
| 2545 | /* Handle a .dim directive, used to give dimensions for an array. The |
| 2546 | arguments are comma separated numbers. mips-tfile assumes that |
| 2547 | there will not be more than 6 dimensions, and gdb won't read any |
| 2548 | more than that anyhow, so I will also make that assumption. */ |
| 2549 | |
| 2550 | void |
| 2551 | ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED) |
| 2552 | { |
| 2553 | int dimens[N_TQ]; |
| 2554 | int i; |
| 2555 | |
| 2556 | if (coff_sym_name == (char *) NULL) |
| 2557 | { |
| 2558 | as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored")); |
| 2559 | demand_empty_rest_of_line (); |
| 2560 | return; |
| 2561 | } |
| 2562 | |
| 2563 | for (i = 0; i < N_TQ; i++) |
| 2564 | { |
| 2565 | SKIP_WHITESPACE (); |
| 2566 | dimens[i] = get_absolute_expression (); |
| 2567 | if (*input_line_pointer == ',') |
| 2568 | ++input_line_pointer; |
| 2569 | else |
| 2570 | { |
| 2571 | if (*input_line_pointer != '\n' |
| 2572 | && *input_line_pointer != ';') |
| 2573 | as_warn (_("badly formed .dim directive")); |
| 2574 | break; |
| 2575 | } |
| 2576 | } |
| 2577 | |
| 2578 | if (i == N_TQ) |
| 2579 | --i; |
| 2580 | |
| 2581 | /* The dimensions are stored away in reverse order. */ |
| 2582 | for (; i >= 0; i--) |
| 2583 | { |
| 2584 | if (coff_type.num_dims >= N_TQ) |
| 2585 | { |
| 2586 | as_warn (_("too many .dim entries")); |
| 2587 | break; |
| 2588 | } |
| 2589 | coff_type.dimensions[coff_type.num_dims] = dimens[i]; |
| 2590 | ++coff_type.num_dims; |
| 2591 | } |
| 2592 | |
| 2593 | demand_empty_rest_of_line (); |
| 2594 | } |
| 2595 | |
| 2596 | /* Handle a .scl directive, which sets the COFF storage class of the |
| 2597 | symbol. */ |
| 2598 | |
| 2599 | void |
| 2600 | ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED) |
| 2601 | { |
| 2602 | long val; |
| 2603 | |
| 2604 | if (coff_sym_name == (char *) NULL) |
| 2605 | { |
| 2606 | as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored")); |
| 2607 | demand_empty_rest_of_line (); |
| 2608 | return; |
| 2609 | } |
| 2610 | |
| 2611 | val = get_absolute_expression (); |
| 2612 | |
| 2613 | coff_symbol_typ = map_coff_sym_type[val]; |
| 2614 | coff_storage_class = map_coff_storage[val]; |
| 2615 | |
| 2616 | demand_empty_rest_of_line (); |
| 2617 | } |
| 2618 | |
| 2619 | /* Handle a .size directive. For some reason mips-tfile.c thinks that |
| 2620 | .size can have multiple arguments. We humor it, although gcc will |
| 2621 | never generate more than one argument. */ |
| 2622 | |
| 2623 | void |
| 2624 | ecoff_directive_size (int ignore ATTRIBUTE_UNUSED) |
| 2625 | { |
| 2626 | int sizes[N_TQ]; |
| 2627 | int i; |
| 2628 | |
| 2629 | if (coff_sym_name == (char *) NULL) |
| 2630 | { |
| 2631 | as_warn (_(".size pseudo-op used outside of .def/.endef; ignored")); |
| 2632 | demand_empty_rest_of_line (); |
| 2633 | return; |
| 2634 | } |
| 2635 | |
| 2636 | for (i = 0; i < N_TQ; i++) |
| 2637 | { |
| 2638 | SKIP_WHITESPACE (); |
| 2639 | sizes[i] = get_absolute_expression (); |
| 2640 | if (*input_line_pointer == ',') |
| 2641 | ++input_line_pointer; |
| 2642 | else |
| 2643 | { |
| 2644 | if (*input_line_pointer != '\n' |
| 2645 | && *input_line_pointer != ';') |
| 2646 | as_warn (_("badly formed .size directive")); |
| 2647 | break; |
| 2648 | } |
| 2649 | } |
| 2650 | |
| 2651 | if (i == N_TQ) |
| 2652 | --i; |
| 2653 | |
| 2654 | /* The sizes are stored away in reverse order. */ |
| 2655 | for (; i >= 0; i--) |
| 2656 | { |
| 2657 | if (coff_type.num_sizes >= N_TQ) |
| 2658 | { |
| 2659 | as_warn (_("too many .size entries")); |
| 2660 | break; |
| 2661 | } |
| 2662 | coff_type.sizes[coff_type.num_sizes] = sizes[i]; |
| 2663 | ++coff_type.num_sizes; |
| 2664 | } |
| 2665 | |
| 2666 | demand_empty_rest_of_line (); |
| 2667 | } |
| 2668 | |
| 2669 | /* Handle the .type directive, which gives the COFF type of the |
| 2670 | symbol. */ |
| 2671 | |
| 2672 | void |
| 2673 | ecoff_directive_type (int ignore ATTRIBUTE_UNUSED) |
| 2674 | { |
| 2675 | long val; |
| 2676 | tq_t *tq_ptr; |
| 2677 | tq_t *tq_shft; |
| 2678 | |
| 2679 | if (coff_sym_name == (char *) NULL) |
| 2680 | { |
| 2681 | as_warn (_(".type pseudo-op used outside of .def/.endef; ignored")); |
| 2682 | demand_empty_rest_of_line (); |
| 2683 | return; |
| 2684 | } |
| 2685 | |
| 2686 | val = get_absolute_expression (); |
| 2687 | |
| 2688 | coff_type.orig_type = BTYPE (val); |
| 2689 | coff_type.basic_type = map_coff_types[coff_type.orig_type]; |
| 2690 | |
| 2691 | tq_ptr = &coff_type.type_qualifiers[N_TQ]; |
| 2692 | while (val & ~N_BTMASK) |
| 2693 | { |
| 2694 | if (tq_ptr == &coff_type.type_qualifiers[0]) |
| 2695 | { |
| 2696 | /* FIXME: We could handle this by setting the continued bit. |
| 2697 | There would still be a limit: the .type argument can not |
| 2698 | be infinite. */ |
| 2699 | as_warn (_("the type of %s is too complex; it will be simplified"), |
| 2700 | coff_sym_name); |
| 2701 | break; |
| 2702 | } |
| 2703 | if (ISPTR (val)) |
| 2704 | *--tq_ptr = tq_Ptr; |
| 2705 | else if (ISFCN (val)) |
| 2706 | *--tq_ptr = tq_Proc; |
| 2707 | else if (ISARY (val)) |
| 2708 | *--tq_ptr = tq_Array; |
| 2709 | else |
| 2710 | as_fatal (_("Unrecognized .type argument")); |
| 2711 | |
| 2712 | val = DECREF (val); |
| 2713 | } |
| 2714 | |
| 2715 | tq_shft = &coff_type.type_qualifiers[0]; |
| 2716 | while (tq_ptr != &coff_type.type_qualifiers[N_TQ]) |
| 2717 | *tq_shft++ = *tq_ptr++; |
| 2718 | |
| 2719 | if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc) |
| 2720 | { |
| 2721 | /* If this is a function, ignore it, so that we don't get two |
| 2722 | entries (one from the .ent, and one for the .def that |
| 2723 | precedes it). Save the type information so that the end |
| 2724 | block can properly add it after the begin block index. For |
| 2725 | MIPS knows what reason, we must strip off the function type |
| 2726 | at this point. */ |
| 2727 | coff_is_function = 1; |
| 2728 | tq_shft[-1] = tq_Nil; |
| 2729 | } |
| 2730 | |
| 2731 | while (tq_shft != &coff_type.type_qualifiers[N_TQ]) |
| 2732 | *tq_shft++ = tq_Nil; |
| 2733 | |
| 2734 | demand_empty_rest_of_line (); |
| 2735 | } |
| 2736 | |
| 2737 | /* Handle the .tag directive, which gives the name of a structure, |
| 2738 | union or enum. */ |
| 2739 | |
| 2740 | void |
| 2741 | ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED) |
| 2742 | { |
| 2743 | char *name; |
| 2744 | char name_end; |
| 2745 | |
| 2746 | if (coff_sym_name == (char *) NULL) |
| 2747 | { |
| 2748 | as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored")); |
| 2749 | demand_empty_rest_of_line (); |
| 2750 | return; |
| 2751 | } |
| 2752 | |
| 2753 | name = input_line_pointer; |
| 2754 | name_end = get_symbol_end (); |
| 2755 | |
| 2756 | coff_tag = xstrdup (name); |
| 2757 | |
| 2758 | *input_line_pointer = name_end; |
| 2759 | |
| 2760 | demand_empty_rest_of_line (); |
| 2761 | } |
| 2762 | |
| 2763 | /* Handle the .val directive, which gives the value of the symbol. It |
| 2764 | may be the name of a static or global symbol. */ |
| 2765 | |
| 2766 | void |
| 2767 | ecoff_directive_val (int ignore ATTRIBUTE_UNUSED) |
| 2768 | { |
| 2769 | expressionS exp; |
| 2770 | |
| 2771 | if (coff_sym_name == (char *) NULL) |
| 2772 | { |
| 2773 | as_warn (_(".val pseudo-op used outside of .def/.endef; ignored")); |
| 2774 | demand_empty_rest_of_line (); |
| 2775 | return; |
| 2776 | } |
| 2777 | |
| 2778 | expression (&exp); |
| 2779 | if (exp.X_op != O_constant && exp.X_op != O_symbol) |
| 2780 | { |
| 2781 | as_bad (_(".val expression is too copmlex")); |
| 2782 | demand_empty_rest_of_line (); |
| 2783 | return; |
| 2784 | } |
| 2785 | |
| 2786 | if (exp.X_op == O_constant) |
| 2787 | coff_value = exp.X_add_number; |
| 2788 | else |
| 2789 | { |
| 2790 | coff_sym_value = exp.X_add_symbol; |
| 2791 | coff_sym_addend = exp.X_add_number; |
| 2792 | } |
| 2793 | |
| 2794 | demand_empty_rest_of_line (); |
| 2795 | } |
| 2796 | |
| 2797 | /* Handle the .endef directive, which terminates processing of COFF |
| 2798 | debugging information for a symbol. */ |
| 2799 | |
| 2800 | void |
| 2801 | ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED) |
| 2802 | { |
| 2803 | char *name; |
| 2804 | symint_t indx; |
| 2805 | localsym_t *sym; |
| 2806 | |
| 2807 | demand_empty_rest_of_line (); |
| 2808 | |
| 2809 | if (coff_sym_name == (char *) NULL) |
| 2810 | { |
| 2811 | as_warn (_(".endef pseudo-op used before .def; ignored")); |
| 2812 | return; |
| 2813 | } |
| 2814 | |
| 2815 | name = coff_sym_name; |
| 2816 | coff_sym_name = (char *) NULL; |
| 2817 | |
| 2818 | /* If the symbol is a static or external, we have already gotten the |
| 2819 | appropriate type and class, so make sure we don't override those |
| 2820 | values. This is needed because there are some type and classes |
| 2821 | that are not in COFF, such as short data, etc. */ |
| 2822 | if (coff_sym_value != (symbolS *) NULL) |
| 2823 | { |
| 2824 | coff_symbol_typ = st_Nil; |
| 2825 | coff_storage_class = sc_Nil; |
| 2826 | } |
| 2827 | |
| 2828 | coff_type.extra_sizes = coff_tag != (char *) NULL; |
| 2829 | if (coff_type.num_dims > 0) |
| 2830 | { |
| 2831 | int diff = coff_type.num_dims - coff_type.num_sizes; |
| 2832 | int i = coff_type.num_dims - 1; |
| 2833 | int j; |
| 2834 | |
| 2835 | if (coff_type.num_sizes != 1 || diff < 0) |
| 2836 | { |
| 2837 | as_warn (_("bad COFF debugging information")); |
| 2838 | return; |
| 2839 | } |
| 2840 | |
| 2841 | /* If this is an array, make sure the same number of dimensions |
| 2842 | and sizes were passed, creating extra sizes for multiply |
| 2843 | dimensioned arrays if not passed. */ |
| 2844 | coff_type.extra_sizes = 0; |
| 2845 | if (diff) |
| 2846 | { |
| 2847 | j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1; |
| 2848 | while (j >= 0) |
| 2849 | { |
| 2850 | coff_type.sizes[j] = (((j - diff) >= 0) |
| 2851 | ? coff_type.sizes[j - diff] |
| 2852 | : 0); |
| 2853 | j--; |
| 2854 | } |
| 2855 | |
| 2856 | coff_type.num_sizes = i + 1; |
| 2857 | for (i--; i >= 0; i--) |
| 2858 | coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0 |
| 2859 | ? 0 |
| 2860 | : (coff_type.sizes[i + 1] |
| 2861 | / coff_type.dimensions[i + 1])); |
| 2862 | } |
| 2863 | } |
| 2864 | else if (coff_symbol_typ == st_Member |
| 2865 | && coff_type.num_sizes - coff_type.extra_sizes == 1) |
| 2866 | { |
| 2867 | /* Is this a bitfield? This is indicated by a structure member |
| 2868 | having a size field that isn't an array. */ |
| 2869 | coff_type.bitfield = 1; |
| 2870 | } |
| 2871 | |
| 2872 | /* Except for enumeration members & begin/ending of scopes, put the |
| 2873 | type word in the aux. symbol table. */ |
| 2874 | if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End) |
| 2875 | indx = 0; |
| 2876 | else if (coff_inside_enumeration) |
| 2877 | indx = cur_file_ptr->void_type; |
| 2878 | else |
| 2879 | { |
| 2880 | if (coff_type.basic_type == bt_Struct |
| 2881 | || coff_type.basic_type == bt_Union |
| 2882 | || coff_type.basic_type == bt_Enum) |
| 2883 | { |
| 2884 | if (coff_tag == (char *) NULL) |
| 2885 | { |
| 2886 | as_warn (_("no tag specified for %s"), name); |
| 2887 | return; |
| 2888 | } |
| 2889 | |
| 2890 | coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL, |
| 2891 | coff_type.basic_type); |
| 2892 | } |
| 2893 | |
| 2894 | if (coff_is_function) |
| 2895 | { |
| 2896 | last_func_type_info = coff_type; |
| 2897 | last_func_sym_value = coff_sym_value; |
| 2898 | return; |
| 2899 | } |
| 2900 | |
| 2901 | indx = add_aux_sym_tir (&coff_type, |
| 2902 | hash_yes, |
| 2903 | &cur_file_ptr->thash_head[0]); |
| 2904 | } |
| 2905 | |
| 2906 | /* Do any last minute adjustments that are necessary. */ |
| 2907 | switch (coff_symbol_typ) |
| 2908 | { |
| 2909 | default: |
| 2910 | break; |
| 2911 | |
| 2912 | /* For the beginning of structs, unions, and enumerations, the |
| 2913 | size info needs to be passed in the value field. */ |
| 2914 | case st_Block: |
| 2915 | if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes |
| 2916 | != 1) |
| 2917 | { |
| 2918 | as_warn (_("bad COFF debugging information")); |
| 2919 | return; |
| 2920 | } |
| 2921 | else |
| 2922 | coff_value = coff_type.sizes[0]; |
| 2923 | |
| 2924 | coff_inside_enumeration = (coff_type.orig_type == T_ENUM); |
| 2925 | break; |
| 2926 | |
| 2927 | /* For the end of structs, unions, and enumerations, omit the |
| 2928 | name which is always ".eos". This needs to be done last, so |
| 2929 | that any error reporting above gives the correct name. */ |
| 2930 | case st_End: |
| 2931 | free (name); |
| 2932 | name = (char *) NULL; |
| 2933 | coff_value = 0; |
| 2934 | coff_inside_enumeration = 0; |
| 2935 | break; |
| 2936 | |
| 2937 | /* Members of structures and unions that aren't bitfields, need |
| 2938 | to adjust the value from a byte offset to a bit offset. |
| 2939 | Members of enumerations do not have the value adjusted, and |
| 2940 | can be distinguished by indx == indexNil. For enumerations, |
| 2941 | update the maximum enumeration value. */ |
| 2942 | case st_Member: |
| 2943 | if (! coff_type.bitfield && ! coff_inside_enumeration) |
| 2944 | coff_value *= 8; |
| 2945 | |
| 2946 | break; |
| 2947 | } |
| 2948 | |
| 2949 | /* Add the symbol. */ |
| 2950 | sym = add_ecoff_symbol (name, |
| 2951 | coff_symbol_typ, |
| 2952 | coff_storage_class, |
| 2953 | coff_sym_value, |
| 2954 | coff_sym_addend, |
| 2955 | (symint_t) coff_value, |
| 2956 | indx); |
| 2957 | |
| 2958 | /* deal with struct, union, and enum tags. */ |
| 2959 | if (coff_symbol_typ == st_Block) |
| 2960 | { |
| 2961 | /* Create or update the tag information. */ |
| 2962 | tag_t *tag_ptr = get_tag (name, |
| 2963 | sym, |
| 2964 | coff_type.basic_type); |
| 2965 | forward_t **pf; |
| 2966 | |
| 2967 | /* Remember any forward references. */ |
| 2968 | for (pf = &sym->forward_ref; |
| 2969 | *pf != (forward_t *) NULL; |
| 2970 | pf = &(*pf)->next) |
| 2971 | ; |
| 2972 | *pf = tag_ptr->forward_ref; |
| 2973 | tag_ptr->forward_ref = (forward_t *) NULL; |
| 2974 | } |
| 2975 | } |
| 2976 | \f |
| 2977 | /* Parse .end directives. */ |
| 2978 | |
| 2979 | void |
| 2980 | ecoff_directive_end (int ignore ATTRIBUTE_UNUSED) |
| 2981 | { |
| 2982 | char *name; |
| 2983 | char name_end; |
| 2984 | symbolS *ent; |
| 2985 | |
| 2986 | if (cur_file_ptr == (efdr_t *) NULL) |
| 2987 | { |
| 2988 | as_warn (_(".end directive without a preceding .file directive")); |
| 2989 | demand_empty_rest_of_line (); |
| 2990 | return; |
| 2991 | } |
| 2992 | |
| 2993 | if (cur_proc_ptr == (proc_t *) NULL) |
| 2994 | { |
| 2995 | as_warn (_(".end directive without a preceding .ent directive")); |
| 2996 | demand_empty_rest_of_line (); |
| 2997 | return; |
| 2998 | } |
| 2999 | |
| 3000 | name = input_line_pointer; |
| 3001 | name_end = get_symbol_end (); |
| 3002 | |
| 3003 | if (name == input_line_pointer) |
| 3004 | { |
| 3005 | as_warn (_(".end directive has no name")); |
| 3006 | *input_line_pointer = name_end; |
| 3007 | demand_empty_rest_of_line (); |
| 3008 | return; |
| 3009 | } |
| 3010 | |
| 3011 | /* The value is the distance between the .end directive and the |
| 3012 | corresponding symbol. We create a fake symbol to hold the |
| 3013 | current location, and put in the offset when we write out the |
| 3014 | symbol. */ |
| 3015 | ent = symbol_find (name); |
| 3016 | if (ent == (symbolS *) NULL) |
| 3017 | as_warn (_(".end directive names unknown symbol")); |
| 3018 | else |
| 3019 | (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, |
| 3020 | symbol_new ("L0\001", now_seg, |
| 3021 | (valueT) frag_now_fix (), |
| 3022 | frag_now), |
| 3023 | (bfd_vma) 0, (symint_t) 0, (symint_t) 0); |
| 3024 | |
| 3025 | cur_proc_ptr = (proc_t *) NULL; |
| 3026 | |
| 3027 | *input_line_pointer = name_end; |
| 3028 | demand_empty_rest_of_line (); |
| 3029 | } |
| 3030 | \f |
| 3031 | /* Parse .ent directives. */ |
| 3032 | |
| 3033 | void |
| 3034 | ecoff_directive_ent (int ignore ATTRIBUTE_UNUSED) |
| 3035 | { |
| 3036 | char *name; |
| 3037 | char name_end; |
| 3038 | |
| 3039 | if (cur_file_ptr == (efdr_t *) NULL) |
| 3040 | add_file ((const char *) NULL, 0, 1); |
| 3041 | |
| 3042 | if (cur_proc_ptr != (proc_t *) NULL) |
| 3043 | { |
| 3044 | as_warn (_("second .ent directive found before .end directive")); |
| 3045 | demand_empty_rest_of_line (); |
| 3046 | return; |
| 3047 | } |
| 3048 | |
| 3049 | name = input_line_pointer; |
| 3050 | name_end = get_symbol_end (); |
| 3051 | |
| 3052 | if (name == input_line_pointer) |
| 3053 | { |
| 3054 | as_warn (_(".ent directive has no name")); |
| 3055 | *input_line_pointer = name_end; |
| 3056 | demand_empty_rest_of_line (); |
| 3057 | return; |
| 3058 | } |
| 3059 | |
| 3060 | add_procedure (name); |
| 3061 | |
| 3062 | *input_line_pointer = name_end; |
| 3063 | |
| 3064 | /* The .ent directive is sometimes followed by a number. I'm not |
| 3065 | really sure what the number means. I don't see any way to store |
| 3066 | the information in the PDR. The Irix 4 assembler seems to ignore |
| 3067 | the information. */ |
| 3068 | SKIP_WHITESPACE (); |
| 3069 | if (*input_line_pointer == ',') |
| 3070 | { |
| 3071 | ++input_line_pointer; |
| 3072 | SKIP_WHITESPACE (); |
| 3073 | } |
| 3074 | if (ISDIGIT (*input_line_pointer) |
| 3075 | || *input_line_pointer == '-') |
| 3076 | (void) get_absolute_expression (); |
| 3077 | |
| 3078 | demand_empty_rest_of_line (); |
| 3079 | } |
| 3080 | \f |
| 3081 | /* Parse .extern directives. */ |
| 3082 | |
| 3083 | void |
| 3084 | ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED) |
| 3085 | { |
| 3086 | char *name; |
| 3087 | int c; |
| 3088 | symbolS *symbolp; |
| 3089 | valueT size; |
| 3090 | |
| 3091 | name = input_line_pointer; |
| 3092 | c = get_symbol_end (); |
| 3093 | symbolp = symbol_find_or_make (name); |
| 3094 | *input_line_pointer = c; |
| 3095 | |
| 3096 | S_SET_EXTERNAL (symbolp); |
| 3097 | |
| 3098 | if (*input_line_pointer == ',') |
| 3099 | ++input_line_pointer; |
| 3100 | size = get_absolute_expression (); |
| 3101 | |
| 3102 | symbol_get_obj (symbolp)->ecoff_extern_size = size; |
| 3103 | } |
| 3104 | \f |
| 3105 | /* Parse .file directives. */ |
| 3106 | |
| 3107 | void |
| 3108 | ecoff_directive_file (int ignore ATTRIBUTE_UNUSED) |
| 3109 | { |
| 3110 | int indx; |
| 3111 | char *name; |
| 3112 | int len; |
| 3113 | |
| 3114 | if (cur_proc_ptr != (proc_t *) NULL) |
| 3115 | { |
| 3116 | as_warn (_("no way to handle .file within .ent/.end section")); |
| 3117 | demand_empty_rest_of_line (); |
| 3118 | return; |
| 3119 | } |
| 3120 | |
| 3121 | indx = (int) get_absolute_expression (); |
| 3122 | |
| 3123 | /* FIXME: we don't have to save the name here. */ |
| 3124 | name = demand_copy_C_string (&len); |
| 3125 | |
| 3126 | add_file (name, indx - 1, 0); |
| 3127 | |
| 3128 | demand_empty_rest_of_line (); |
| 3129 | } |
| 3130 | \f |
| 3131 | /* Parse .fmask directives. */ |
| 3132 | |
| 3133 | void |
| 3134 | ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED) |
| 3135 | { |
| 3136 | long val; |
| 3137 | |
| 3138 | if (cur_proc_ptr == (proc_t *) NULL) |
| 3139 | { |
| 3140 | as_warn (_(".fmask outside of .ent")); |
| 3141 | demand_empty_rest_of_line (); |
| 3142 | return; |
| 3143 | } |
| 3144 | |
| 3145 | if (get_absolute_expression_and_terminator (&val) != ',') |
| 3146 | { |
| 3147 | as_warn (_("bad .fmask directive")); |
| 3148 | --input_line_pointer; |
| 3149 | demand_empty_rest_of_line (); |
| 3150 | return; |
| 3151 | } |
| 3152 | |
| 3153 | cur_proc_ptr->pdr.fregmask = val; |
| 3154 | cur_proc_ptr->pdr.fregoffset = get_absolute_expression (); |
| 3155 | |
| 3156 | demand_empty_rest_of_line (); |
| 3157 | } |
| 3158 | \f |
| 3159 | /* Parse .frame directives. */ |
| 3160 | |
| 3161 | void |
| 3162 | ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED) |
| 3163 | { |
| 3164 | long val; |
| 3165 | |
| 3166 | if (cur_proc_ptr == (proc_t *) NULL) |
| 3167 | { |
| 3168 | as_warn (_(".frame outside of .ent")); |
| 3169 | demand_empty_rest_of_line (); |
| 3170 | return; |
| 3171 | } |
| 3172 | |
| 3173 | cur_proc_ptr->pdr.framereg = tc_get_register (1); |
| 3174 | |
| 3175 | SKIP_WHITESPACE (); |
| 3176 | if (*input_line_pointer++ != ',' |
| 3177 | || get_absolute_expression_and_terminator (&val) != ',') |
| 3178 | { |
| 3179 | as_warn (_("bad .frame directive")); |
| 3180 | --input_line_pointer; |
| 3181 | demand_empty_rest_of_line (); |
| 3182 | return; |
| 3183 | } |
| 3184 | |
| 3185 | cur_proc_ptr->pdr.frameoffset = val; |
| 3186 | |
| 3187 | cur_proc_ptr->pdr.pcreg = tc_get_register (0); |
| 3188 | |
| 3189 | /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to |
| 3190 | Sandro. I don't yet know where this value should be stored, if |
| 3191 | anywhere. Don't call demand_empty_rest_of_line (). */ |
| 3192 | s_ignore (42); |
| 3193 | } |
| 3194 | \f |
| 3195 | /* Parse .mask directives. */ |
| 3196 | |
| 3197 | void |
| 3198 | ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED) |
| 3199 | { |
| 3200 | long val; |
| 3201 | |
| 3202 | if (cur_proc_ptr == (proc_t *) NULL) |
| 3203 | { |
| 3204 | as_warn (_(".mask outside of .ent")); |
| 3205 | demand_empty_rest_of_line (); |
| 3206 | return; |
| 3207 | } |
| 3208 | |
| 3209 | if (get_absolute_expression_and_terminator (&val) != ',') |
| 3210 | { |
| 3211 | as_warn (_("bad .mask directive")); |
| 3212 | --input_line_pointer; |
| 3213 | demand_empty_rest_of_line (); |
| 3214 | return; |
| 3215 | } |
| 3216 | |
| 3217 | cur_proc_ptr->pdr.regmask = val; |
| 3218 | cur_proc_ptr->pdr.regoffset = get_absolute_expression (); |
| 3219 | |
| 3220 | demand_empty_rest_of_line (); |
| 3221 | } |
| 3222 | \f |
| 3223 | /* Parse .loc directives. */ |
| 3224 | |
| 3225 | void |
| 3226 | ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED) |
| 3227 | { |
| 3228 | lineno_list_t *list; |
| 3229 | symint_t lineno; |
| 3230 | |
| 3231 | if (cur_file_ptr == (efdr_t *) NULL) |
| 3232 | { |
| 3233 | as_warn (_(".loc before .file")); |
| 3234 | demand_empty_rest_of_line (); |
| 3235 | return; |
| 3236 | } |
| 3237 | |
| 3238 | if (now_seg != text_section) |
| 3239 | { |
| 3240 | as_warn (_(".loc outside of .text")); |
| 3241 | demand_empty_rest_of_line (); |
| 3242 | return; |
| 3243 | } |
| 3244 | |
| 3245 | /* Skip the file number. */ |
| 3246 | SKIP_WHITESPACE (); |
| 3247 | get_absolute_expression (); |
| 3248 | SKIP_WHITESPACE (); |
| 3249 | |
| 3250 | lineno = get_absolute_expression (); |
| 3251 | |
| 3252 | #ifndef NO_LISTING |
| 3253 | if (listing) |
| 3254 | listing_source_line (lineno); |
| 3255 | #endif |
| 3256 | |
| 3257 | /* If we're building stabs, then output a special label rather than |
| 3258 | ECOFF line number info. */ |
| 3259 | if (stabs_seen) |
| 3260 | { |
| 3261 | (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text, |
| 3262 | symbol_new ("L0\001", now_seg, |
| 3263 | (valueT) frag_now_fix (), |
| 3264 | frag_now), |
| 3265 | (bfd_vma) 0, 0, lineno); |
| 3266 | return; |
| 3267 | } |
| 3268 | |
| 3269 | list = allocate_lineno_list (); |
| 3270 | |
| 3271 | list->next = (lineno_list_t *) NULL; |
| 3272 | list->file = cur_file_ptr; |
| 3273 | list->proc = cur_proc_ptr; |
| 3274 | list->frag = frag_now; |
| 3275 | list->paddr = frag_now_fix (); |
| 3276 | list->lineno = lineno; |
| 3277 | |
| 3278 | /* We don't want to merge files which have line numbers. */ |
| 3279 | cur_file_ptr->fdr.fMerge = 0; |
| 3280 | |
| 3281 | /* A .loc directive will sometimes appear before a .ent directive, |
| 3282 | which means that cur_proc_ptr will be NULL here. Arrange to |
| 3283 | patch this up. */ |
| 3284 | if (cur_proc_ptr == (proc_t *) NULL) |
| 3285 | { |
| 3286 | lineno_list_t **pl; |
| 3287 | |
| 3288 | pl = &noproc_lineno; |
| 3289 | while (*pl != (lineno_list_t *) NULL) |
| 3290 | pl = &(*pl)->next; |
| 3291 | *pl = list; |
| 3292 | } |
| 3293 | else |
| 3294 | { |
| 3295 | last_lineno = list; |
| 3296 | *last_lineno_ptr = list; |
| 3297 | last_lineno_ptr = &list->next; |
| 3298 | } |
| 3299 | } |
| 3300 | |
| 3301 | /* The MIPS assembler sometimes inserts nop instructions in the |
| 3302 | instruction stream. When this happens, we must patch up the .loc |
| 3303 | information so that it points to the instruction after the nop. */ |
| 3304 | |
| 3305 | void |
| 3306 | ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset) |
| 3307 | { |
| 3308 | if (last_lineno != NULL |
| 3309 | && last_lineno->frag == old_frag |
| 3310 | && last_lineno->paddr == old_frag_offset) |
| 3311 | { |
| 3312 | last_lineno->frag = frag_now; |
| 3313 | last_lineno->paddr = frag_now_fix (); |
| 3314 | } |
| 3315 | } |
| 3316 | \f |
| 3317 | /* Make sure the @stabs symbol is emitted. */ |
| 3318 | |
| 3319 | static void |
| 3320 | mark_stabs (int ignore ATTRIBUTE_UNUSED) |
| 3321 | { |
| 3322 | if (! stabs_seen) |
| 3323 | { |
| 3324 | /* Add a dummy @stabs dymbol. */ |
| 3325 | stabs_seen = 1; |
| 3326 | (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo, |
| 3327 | (symbolS *) NULL, |
| 3328 | (bfd_vma) 0, (symint_t) -1, |
| 3329 | ECOFF_MARK_STAB (0)); |
| 3330 | } |
| 3331 | } |
| 3332 | \f |
| 3333 | /* Parse .weakext directives. */ |
| 3334 | #ifndef TC_MIPS |
| 3335 | /* For TC_MIPS use the version in tc-mips.c. */ |
| 3336 | void |
| 3337 | ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED) |
| 3338 | { |
| 3339 | char *name; |
| 3340 | int c; |
| 3341 | symbolS *symbolP; |
| 3342 | expressionS exp; |
| 3343 | |
| 3344 | name = input_line_pointer; |
| 3345 | c = get_symbol_end (); |
| 3346 | symbolP = symbol_find_or_make (name); |
| 3347 | *input_line_pointer = c; |
| 3348 | |
| 3349 | SKIP_WHITESPACE (); |
| 3350 | |
| 3351 | if (*input_line_pointer == ',') |
| 3352 | { |
| 3353 | if (S_IS_DEFINED (symbolP)) |
| 3354 | { |
| 3355 | as_bad (_("symbol `%s' is already defined"), |
| 3356 | S_GET_NAME (symbolP)); |
| 3357 | ignore_rest_of_line (); |
| 3358 | return; |
| 3359 | } |
| 3360 | |
| 3361 | ++input_line_pointer; |
| 3362 | SKIP_WHITESPACE (); |
| 3363 | if (! is_end_of_line[(unsigned char) *input_line_pointer]) |
| 3364 | { |
| 3365 | expression (&exp); |
| 3366 | if (exp.X_op != O_symbol) |
| 3367 | { |
| 3368 | as_bad (_("bad .weakext directive")); |
| 3369 | ignore_rest_of_line (); |
| 3370 | return; |
| 3371 | } |
| 3372 | symbol_set_value_expression (symbolP, &exp); |
| 3373 | } |
| 3374 | } |
| 3375 | |
| 3376 | S_SET_WEAK (symbolP); |
| 3377 | |
| 3378 | demand_empty_rest_of_line (); |
| 3379 | } |
| 3380 | #endif /* not TC_MIPS */ |
| 3381 | \f |
| 3382 | /* Handle .stabs directives. The actual parsing routine is done by a |
| 3383 | generic routine. This routine is called via OBJ_PROCESS_STAB. |
| 3384 | When this is called, input_line_pointer will be pointing at the |
| 3385 | value field of the stab. |
| 3386 | |
| 3387 | .stabs directives have five fields: |
| 3388 | "string" a string, encoding the type information. |
| 3389 | code a numeric code, defined in <stab.h> |
| 3390 | 0 a zero |
| 3391 | desc a zero or line number |
| 3392 | value a numeric value or an address. |
| 3393 | |
| 3394 | If the value is relocatable, we transform this into: |
| 3395 | iss points as an index into string space |
| 3396 | value value from lookup of the name |
| 3397 | st st from lookup of the name |
| 3398 | sc sc from lookup of the name |
| 3399 | index code|CODE_MASK |
| 3400 | |
| 3401 | If the value is not relocatable, we transform this into: |
| 3402 | iss points as an index into string space |
| 3403 | value value |
| 3404 | st st_Nil |
| 3405 | sc sc_Nil |
| 3406 | index code|CODE_MASK |
| 3407 | |
| 3408 | .stabn directives have four fields (string is null): |
| 3409 | code a numeric code, defined in <stab.h> |
| 3410 | 0 a zero |
| 3411 | desc a zero or a line number |
| 3412 | value a numeric value or an address. */ |
| 3413 | |
| 3414 | void |
| 3415 | ecoff_stab (segT sec ATTRIBUTE_UNUSED, |
| 3416 | int what, |
| 3417 | const char *string, |
| 3418 | int type, |
| 3419 | int other, |
| 3420 | int desc) |
| 3421 | { |
| 3422 | efdr_t *save_file_ptr = cur_file_ptr; |
| 3423 | symbolS *sym; |
| 3424 | symint_t value; |
| 3425 | bfd_vma addend; |
| 3426 | st_t st; |
| 3427 | sc_t sc; |
| 3428 | symint_t indx; |
| 3429 | localsym_t *hold = NULL; |
| 3430 | |
| 3431 | ecoff_debugging_seen = 1; |
| 3432 | |
| 3433 | /* We don't handle .stabd. */ |
| 3434 | if (what != 's' && what != 'n') |
| 3435 | { |
| 3436 | as_bad (_(".stab%c is not supported"), what); |
| 3437 | return; |
| 3438 | } |
| 3439 | |
| 3440 | /* A .stabn uses a null name, not an empty string. */ |
| 3441 | if (what == 'n') |
| 3442 | string = NULL; |
| 3443 | |
| 3444 | /* We ignore the other field. */ |
| 3445 | if (other != 0) |
| 3446 | as_warn (_(".stab%c: ignoring non-zero other field"), what); |
| 3447 | |
| 3448 | /* Make sure we have a current file. */ |
| 3449 | if (cur_file_ptr == (efdr_t *) NULL) |
| 3450 | { |
| 3451 | add_file ((const char *) NULL, 0, 1); |
| 3452 | save_file_ptr = cur_file_ptr; |
| 3453 | } |
| 3454 | |
| 3455 | /* For stabs in ECOFF, the first symbol must be @stabs. This is a |
| 3456 | signal to gdb. */ |
| 3457 | if (stabs_seen == 0) |
| 3458 | mark_stabs (0); |
| 3459 | |
| 3460 | /* Line number stabs are handled differently, since they have two |
| 3461 | values, the line number and the address of the label. We use the |
| 3462 | index field (aka desc) to hold the line number, and the value |
| 3463 | field to hold the address. The symbol type is st_Label, which |
| 3464 | should be different from the other stabs, so that gdb can |
| 3465 | recognize it. */ |
| 3466 | if (type == N_SLINE) |
| 3467 | { |
| 3468 | SYMR dummy_symr; |
| 3469 | char *name; |
| 3470 | char name_end; |
| 3471 | |
| 3472 | #ifndef NO_LISTING |
| 3473 | if (listing) |
| 3474 | listing_source_line ((unsigned int) desc); |
| 3475 | #endif |
| 3476 | |
| 3477 | dummy_symr.index = desc; |
| 3478 | if (dummy_symr.index != desc) |
| 3479 | { |
| 3480 | as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"), |
| 3481 | desc, what); |
| 3482 | return; |
| 3483 | } |
| 3484 | |
| 3485 | name = input_line_pointer; |
| 3486 | name_end = get_symbol_end (); |
| 3487 | |
| 3488 | sym = symbol_find_or_make (name); |
| 3489 | *input_line_pointer = name_end; |
| 3490 | |
| 3491 | value = 0; |
| 3492 | addend = 0; |
| 3493 | st = st_Label; |
| 3494 | sc = sc_Text; |
| 3495 | indx = desc; |
| 3496 | } |
| 3497 | else |
| 3498 | { |
| 3499 | #ifndef NO_LISTING |
| 3500 | if (listing && (type == N_SO || type == N_SOL)) |
| 3501 | listing_source_file (string); |
| 3502 | #endif |
| 3503 | |
| 3504 | if (ISDIGIT (*input_line_pointer) |
| 3505 | || *input_line_pointer == '-' |
| 3506 | || *input_line_pointer == '+') |
| 3507 | { |
| 3508 | st = st_Nil; |
| 3509 | sc = sc_Nil; |
| 3510 | sym = (symbolS *) NULL; |
| 3511 | value = get_absolute_expression (); |
| 3512 | addend = 0; |
| 3513 | } |
| 3514 | else if (! is_name_beginner ((unsigned char) *input_line_pointer)) |
| 3515 | { |
| 3516 | as_warn (_("illegal .stab%c directive, bad character"), what); |
| 3517 | return; |
| 3518 | } |
| 3519 | else |
| 3520 | { |
| 3521 | expressionS exp; |
| 3522 | |
| 3523 | sc = sc_Nil; |
| 3524 | st = st_Nil; |
| 3525 | |
| 3526 | expression (&exp); |
| 3527 | if (exp.X_op == O_constant) |
| 3528 | { |
| 3529 | sym = NULL; |
| 3530 | value = exp.X_add_number; |
| 3531 | addend = 0; |
| 3532 | } |
| 3533 | else if (exp.X_op == O_symbol) |
| 3534 | { |
| 3535 | sym = exp.X_add_symbol; |
| 3536 | value = 0; |
| 3537 | addend = exp.X_add_number; |
| 3538 | } |
| 3539 | else |
| 3540 | { |
| 3541 | sym = make_expr_symbol (&exp); |
| 3542 | value = 0; |
| 3543 | addend = 0; |
| 3544 | } |
| 3545 | } |
| 3546 | |
| 3547 | indx = ECOFF_MARK_STAB (type); |
| 3548 | } |
| 3549 | |
| 3550 | /* Don't store the stabs symbol we are creating as the type of the |
| 3551 | ECOFF symbol. We want to compute the type of the ECOFF symbol |
| 3552 | independently. */ |
| 3553 | if (sym != (symbolS *) NULL) |
| 3554 | hold = symbol_get_obj (sym)->ecoff_symbol; |
| 3555 | |
| 3556 | (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx); |
| 3557 | |
| 3558 | if (sym != (symbolS *) NULL) |
| 3559 | symbol_get_obj (sym)->ecoff_symbol = hold; |
| 3560 | |
| 3561 | /* Restore normal file type. */ |
| 3562 | cur_file_ptr = save_file_ptr; |
| 3563 | } |
| 3564 | \f |
| 3565 | /* Frob an ECOFF symbol. Small common symbols go into a special |
| 3566 | .scommon section rather than bfd_com_section. */ |
| 3567 | |
| 3568 | void |
| 3569 | ecoff_frob_symbol (symbolS *sym) |
| 3570 | { |
| 3571 | if (S_IS_COMMON (sym) |
| 3572 | && S_GET_VALUE (sym) > 0 |
| 3573 | && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput)) |
| 3574 | { |
| 3575 | static asection scom_section; |
| 3576 | static asymbol scom_symbol; |
| 3577 | |
| 3578 | /* We must construct a fake section similar to bfd_com_section |
| 3579 | but with the name .scommon. */ |
| 3580 | if (scom_section.name == NULL) |
| 3581 | { |
| 3582 | scom_section = bfd_com_section; |
| 3583 | scom_section.name = ".scommon"; |
| 3584 | scom_section.output_section = &scom_section; |
| 3585 | scom_section.symbol = &scom_symbol; |
| 3586 | scom_section.symbol_ptr_ptr = &scom_section.symbol; |
| 3587 | scom_symbol = *bfd_com_section.symbol; |
| 3588 | scom_symbol.name = ".scommon"; |
| 3589 | scom_symbol.section = &scom_section; |
| 3590 | } |
| 3591 | S_SET_SEGMENT (sym, &scom_section); |
| 3592 | } |
| 3593 | |
| 3594 | /* Double check weak symbols. */ |
| 3595 | if (S_IS_WEAK (sym)) |
| 3596 | { |
| 3597 | if (S_IS_COMMON (sym)) |
| 3598 | as_bad (_("symbol `%s' can not be both weak and common"), |
| 3599 | S_GET_NAME (sym)); |
| 3600 | } |
| 3601 | } |
| 3602 | \f |
| 3603 | /* Add bytes to the symbolic information buffer. */ |
| 3604 | |
| 3605 | static char * |
| 3606 | ecoff_add_bytes (char **buf, |
| 3607 | char **bufend, |
| 3608 | char *bufptr, |
| 3609 | unsigned long need) |
| 3610 | { |
| 3611 | unsigned long at; |
| 3612 | unsigned long want; |
| 3613 | |
| 3614 | at = bufptr - *buf; |
| 3615 | need -= *bufend - bufptr; |
| 3616 | if (need < PAGE_SIZE) |
| 3617 | need = PAGE_SIZE; |
| 3618 | want = (*bufend - *buf) + need; |
| 3619 | *buf = xrealloc (*buf, want); |
| 3620 | *bufend = *buf + want; |
| 3621 | return *buf + at; |
| 3622 | } |
| 3623 | |
| 3624 | /* Adjust the symbolic information buffer to the alignment required |
| 3625 | for the ECOFF target debugging information. */ |
| 3626 | |
| 3627 | static unsigned long |
| 3628 | ecoff_padding_adjust (const struct ecoff_debug_swap *backend, |
| 3629 | char **buf, |
| 3630 | char **bufend, |
| 3631 | unsigned long offset, |
| 3632 | char **bufptrptr) |
| 3633 | { |
| 3634 | bfd_size_type align; |
| 3635 | |
| 3636 | align = backend->debug_align; |
| 3637 | if ((offset & (align - 1)) != 0) |
| 3638 | { |
| 3639 | unsigned long add; |
| 3640 | |
| 3641 | add = align - (offset & (align - 1)); |
| 3642 | if ((unsigned long) (*bufend - (*buf + offset)) < add) |
| 3643 | (void) ecoff_add_bytes (buf, bufend, *buf + offset, add); |
| 3644 | memset (*buf + offset, 0, add); |
| 3645 | offset += add; |
| 3646 | if (bufptrptr != (char **) NULL) |
| 3647 | *bufptrptr = *buf + offset; |
| 3648 | } |
| 3649 | |
| 3650 | return offset; |
| 3651 | } |
| 3652 | |
| 3653 | /* Build the line number information. */ |
| 3654 | |
| 3655 | static unsigned long |
| 3656 | ecoff_build_lineno (const struct ecoff_debug_swap *backend, |
| 3657 | char **buf, |
| 3658 | char **bufend, |
| 3659 | unsigned long offset, |
| 3660 | long *linecntptr) |
| 3661 | { |
| 3662 | char *bufptr; |
| 3663 | register lineno_list_t *l; |
| 3664 | lineno_list_t *last; |
| 3665 | efdr_t *file; |
| 3666 | proc_t *proc; |
| 3667 | unsigned long c; |
| 3668 | long iline; |
| 3669 | long totcount; |
| 3670 | lineno_list_t first; |
| 3671 | lineno_list_t *local_first_lineno = first_lineno; |
| 3672 | |
| 3673 | if (linecntptr != (long *) NULL) |
| 3674 | *linecntptr = 0; |
| 3675 | |
| 3676 | bufptr = *buf + offset; |
| 3677 | |
| 3678 | file = (efdr_t *) NULL; |
| 3679 | proc = (proc_t *) NULL; |
| 3680 | last = (lineno_list_t *) NULL; |
| 3681 | c = offset; |
| 3682 | iline = 0; |
| 3683 | totcount = 0; |
| 3684 | |
| 3685 | /* FIXME? Now that MIPS embedded-PIC is gone, it may be safe to |
| 3686 | remove this code. */ |
| 3687 | /* For some reason the address of the first procedure is ignored |
| 3688 | when reading line numbers. This doesn't matter if the address of |
| 3689 | the first procedure is 0, but when gcc is generating MIPS |
| 3690 | embedded PIC code, it will put strings in the .text section |
| 3691 | before the first procedure. We cope by inserting a dummy line if |
| 3692 | the address of the first procedure is not 0. Hopefully this |
| 3693 | won't screw things up too badly. |
| 3694 | |
| 3695 | Don't do this for ECOFF assembly source line numbers. They work |
| 3696 | without this extra attention. */ |
| 3697 | if (debug_type != DEBUG_ECOFF |
| 3698 | && first_proc_ptr != (proc_t *) NULL |
| 3699 | && local_first_lineno != (lineno_list_t *) NULL |
| 3700 | && ((S_GET_VALUE (first_proc_ptr->sym->as_sym) |
| 3701 | + bfd_get_section_vma (stdoutput, |
| 3702 | S_GET_SEGMENT (first_proc_ptr->sym->as_sym))) |
| 3703 | != 0)) |
| 3704 | { |
| 3705 | first.file = local_first_lineno->file; |
| 3706 | first.proc = local_first_lineno->proc; |
| 3707 | first.frag = &zero_address_frag; |
| 3708 | first.paddr = 0; |
| 3709 | first.lineno = 0; |
| 3710 | |
| 3711 | first.next = local_first_lineno; |
| 3712 | local_first_lineno = &first; |
| 3713 | } |
| 3714 | |
| 3715 | for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next) |
| 3716 | { |
| 3717 | long count; |
| 3718 | long delta; |
| 3719 | |
| 3720 | /* Get the offset to the memory address of the next line number |
| 3721 | (in words). Do this first, so that we can skip ahead to the |
| 3722 | next useful line number entry. */ |
| 3723 | if (l->next == (lineno_list_t *) NULL) |
| 3724 | { |
| 3725 | /* We want a count of zero, but it will be decremented |
| 3726 | before it is used. */ |
| 3727 | count = 1; |
| 3728 | } |
| 3729 | else if (l->next->frag->fr_address + l->next->paddr |
| 3730 | > l->frag->fr_address + l->paddr) |
| 3731 | { |
| 3732 | count = ((l->next->frag->fr_address + l->next->paddr |
| 3733 | - (l->frag->fr_address + l->paddr)) |
| 3734 | >> 2); |
| 3735 | } |
| 3736 | else |
| 3737 | { |
| 3738 | /* Don't change last, so we still get the right delta. */ |
| 3739 | continue; |
| 3740 | } |
| 3741 | |
| 3742 | if (l->file != file || l->proc != proc) |
| 3743 | { |
| 3744 | if (l->proc != proc && proc != (proc_t *) NULL) |
| 3745 | proc->pdr.lnHigh = last->lineno; |
| 3746 | if (l->file != file && file != (efdr_t *) NULL) |
| 3747 | { |
| 3748 | file->fdr.cbLine = c - file->fdr.cbLineOffset; |
| 3749 | file->fdr.cline = totcount + count; |
| 3750 | if (linecntptr != (long *) NULL) |
| 3751 | *linecntptr += totcount + count; |
| 3752 | totcount = 0; |
| 3753 | } |
| 3754 | |
| 3755 | if (l->file != file) |
| 3756 | { |
| 3757 | efdr_t *last_file = file; |
| 3758 | |
| 3759 | file = l->file; |
| 3760 | if (last_file != (efdr_t *) NULL) |
| 3761 | file->fdr.ilineBase |
| 3762 | = last_file->fdr.ilineBase + last_file->fdr.cline; |
| 3763 | else |
| 3764 | file->fdr.ilineBase = 0; |
| 3765 | file->fdr.cbLineOffset = c; |
| 3766 | } |
| 3767 | if (l->proc != proc) |
| 3768 | { |
| 3769 | proc = l->proc; |
| 3770 | if (proc != (proc_t *) NULL) |
| 3771 | { |
| 3772 | proc->pdr.lnLow = l->lineno; |
| 3773 | proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset; |
| 3774 | proc->pdr.iline = totcount; |
| 3775 | } |
| 3776 | } |
| 3777 | |
| 3778 | last = (lineno_list_t *) NULL; |
| 3779 | } |
| 3780 | |
| 3781 | totcount += count; |
| 3782 | |
| 3783 | /* Get the offset to this line number. */ |
| 3784 | if (last == (lineno_list_t *) NULL) |
| 3785 | delta = 0; |
| 3786 | else |
| 3787 | delta = l->lineno - last->lineno; |
| 3788 | |
| 3789 | /* Put in the offset to this line number. */ |
| 3790 | while (delta != 0) |
| 3791 | { |
| 3792 | int setcount; |
| 3793 | |
| 3794 | /* 1 is added to each count read. */ |
| 3795 | --count; |
| 3796 | /* We can only adjust the word count by up to 15 words at a |
| 3797 | time. */ |
| 3798 | if (count <= 0x0f) |
| 3799 | { |
| 3800 | setcount = count; |
| 3801 | count = 0; |
| 3802 | } |
| 3803 | else |
| 3804 | { |
| 3805 | setcount = 0x0f; |
| 3806 | count -= 0x0f; |
| 3807 | } |
| 3808 | if (delta >= -7 && delta <= 7) |
| 3809 | { |
| 3810 | if (bufptr >= *bufend) |
| 3811 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); |
| 3812 | *bufptr++ = setcount + (delta << 4); |
| 3813 | delta = 0; |
| 3814 | ++c; |
| 3815 | } |
| 3816 | else |
| 3817 | { |
| 3818 | int set; |
| 3819 | |
| 3820 | if (*bufend - bufptr < 3) |
| 3821 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3); |
| 3822 | *bufptr++ = setcount + (8 << 4); |
| 3823 | if (delta < -0x8000) |
| 3824 | { |
| 3825 | set = -0x8000; |
| 3826 | delta += 0x8000; |
| 3827 | } |
| 3828 | else if (delta > 0x7fff) |
| 3829 | { |
| 3830 | set = 0x7fff; |
| 3831 | delta -= 0x7fff; |
| 3832 | } |
| 3833 | else |
| 3834 | { |
| 3835 | set = delta; |
| 3836 | delta = 0; |
| 3837 | } |
| 3838 | *bufptr++ = set >> 8; |
| 3839 | *bufptr++ = set & 0xffff; |
| 3840 | c += 3; |
| 3841 | } |
| 3842 | } |
| 3843 | |
| 3844 | /* Finish adjusting the count. */ |
| 3845 | while (count > 0) |
| 3846 | { |
| 3847 | if (bufptr >= *bufend) |
| 3848 | bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1); |
| 3849 | /* 1 is added to each count read. */ |
| 3850 | --count; |
| 3851 | if (count > 0x0f) |
| 3852 | { |
| 3853 | *bufptr++ = 0x0f; |
| 3854 | count -= 0x0f; |
| 3855 | } |
| 3856 | else |
| 3857 | { |
| 3858 | *bufptr++ = count; |
| 3859 | count = 0; |
| 3860 | } |
| 3861 | ++c; |
| 3862 | } |
| 3863 | |
| 3864 | ++iline; |
| 3865 | last = l; |
| 3866 | } |
| 3867 | |
| 3868 | if (proc != (proc_t *) NULL) |
| 3869 | proc->pdr.lnHigh = last->lineno; |
| 3870 | if (file != (efdr_t *) NULL) |
| 3871 | { |
| 3872 | file->fdr.cbLine = c - file->fdr.cbLineOffset; |
| 3873 | file->fdr.cline = totcount; |
| 3874 | } |
| 3875 | |
| 3876 | if (linecntptr != (long *) NULL) |
| 3877 | *linecntptr += totcount; |
| 3878 | |
| 3879 | c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr); |
| 3880 | |
| 3881 | return c; |
| 3882 | } |
| 3883 | |
| 3884 | /* Build and swap out the symbols. */ |
| 3885 | |
| 3886 | static unsigned long |
| 3887 | ecoff_build_symbols (const struct ecoff_debug_swap *backend, |
| 3888 | char **buf, |
| 3889 | char **bufend, |
| 3890 | unsigned long offset) |
| 3891 | { |
| 3892 | const bfd_size_type external_sym_size = backend->external_sym_size; |
| 3893 | void (* const swap_sym_out) (bfd *, const SYMR *, PTR) |
| 3894 | = backend->swap_sym_out; |
| 3895 | char *sym_out; |
| 3896 | long isym; |
| 3897 | vlinks_t *file_link; |
| 3898 | |
| 3899 | sym_out = *buf + offset; |
| 3900 | |
| 3901 | isym = 0; |
| 3902 | |
| 3903 | /* The symbols are stored by file. */ |
| 3904 | for (file_link = file_desc.first; |
| 3905 | file_link != (vlinks_t *) NULL; |
| 3906 | file_link = file_link->next) |
| 3907 | { |
| 3908 | int ifilesym; |
| 3909 | int fil_cnt; |
| 3910 | efdr_t *fil_ptr; |
| 3911 | efdr_t *fil_end; |
| 3912 | |
| 3913 | if (file_link->next == (vlinks_t *) NULL) |
| 3914 | fil_cnt = file_desc.objects_last_page; |
| 3915 | else |
| 3916 | fil_cnt = file_desc.objects_per_page; |
| 3917 | fil_ptr = file_link->datum->file; |
| 3918 | fil_end = fil_ptr + fil_cnt; |
| 3919 | for (; fil_ptr < fil_end; fil_ptr++) |
| 3920 | { |
| 3921 | vlinks_t *sym_link; |
| 3922 | |
| 3923 | fil_ptr->fdr.isymBase = isym; |
| 3924 | ifilesym = isym; |
| 3925 | for (sym_link = fil_ptr->symbols.first; |
| 3926 | sym_link != (vlinks_t *) NULL; |
| 3927 | sym_link = sym_link->next) |
| 3928 | { |
| 3929 | int sym_cnt; |
| 3930 | localsym_t *sym_ptr; |
| 3931 | localsym_t *sym_end; |
| 3932 | |
| 3933 | if (sym_link->next == (vlinks_t *) NULL) |
| 3934 | sym_cnt = fil_ptr->symbols.objects_last_page; |
| 3935 | else |
| 3936 | sym_cnt = fil_ptr->symbols.objects_per_page; |
| 3937 | sym_ptr = sym_link->datum->sym; |
| 3938 | sym_end = sym_ptr + sym_cnt; |
| 3939 | for (; sym_ptr < sym_end; sym_ptr++) |
| 3940 | { |
| 3941 | int local; |
| 3942 | symbolS *as_sym; |
| 3943 | forward_t *f; |
| 3944 | |
| 3945 | know (sym_ptr->file_ptr == fil_ptr); |
| 3946 | |
| 3947 | /* If there is no associated gas symbol, then this |
| 3948 | is a pure debugging symbol. We have already |
| 3949 | added the name (if any) to fil_ptr->strings. |
| 3950 | Otherwise we must decide whether this is an |
| 3951 | external or a local symbol (actually, it may be |
| 3952 | both if the local provides additional debugging |
| 3953 | information for the external). */ |
| 3954 | local = 1; |
| 3955 | as_sym = sym_ptr->as_sym; |
| 3956 | if (as_sym != (symbolS *) NULL) |
| 3957 | { |
| 3958 | symint_t indx; |
| 3959 | |
| 3960 | /* The value of a block start symbol is the |
| 3961 | offset from the start of the procedure. For |
| 3962 | other symbols we just use the gas value (but |
| 3963 | we must offset it by the vma of the section, |
| 3964 | just as BFD does, because BFD will not see |
| 3965 | this value). */ |
| 3966 | if (sym_ptr->ecoff_sym.asym.st == (int) st_Block |
| 3967 | && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text) |
| 3968 | { |
| 3969 | symbolS *begin_sym; |
| 3970 | |
| 3971 | know (sym_ptr->proc_ptr != (proc_t *) NULL); |
| 3972 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; |
| 3973 | if (S_GET_SEGMENT (as_sym) |
| 3974 | != S_GET_SEGMENT (begin_sym)) |
| 3975 | as_warn (_(".begin/.bend in different segments")); |
| 3976 | sym_ptr->ecoff_sym.asym.value = |
| 3977 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); |
| 3978 | } |
| 3979 | else |
| 3980 | sym_ptr->ecoff_sym.asym.value = |
| 3981 | (S_GET_VALUE (as_sym) |
| 3982 | + bfd_get_section_vma (stdoutput, |
| 3983 | S_GET_SEGMENT (as_sym)) |
| 3984 | + sym_ptr->addend); |
| 3985 | |
| 3986 | sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym); |
| 3987 | |
| 3988 | /* Set st_Proc to st_StaticProc for local |
| 3989 | functions. */ |
| 3990 | if (sym_ptr->ecoff_sym.asym.st == st_Proc |
| 3991 | && S_IS_DEFINED (as_sym) |
| 3992 | && ! S_IS_EXTERNAL (as_sym) |
| 3993 | && ! S_IS_WEAK (as_sym)) |
| 3994 | sym_ptr->ecoff_sym.asym.st = st_StaticProc; |
| 3995 | |
| 3996 | /* Get the type and storage class based on where |
| 3997 | the symbol actually wound up. Traditionally, |
| 3998 | N_LBRAC and N_RBRAC are *not* relocated. */ |
| 3999 | indx = sym_ptr->ecoff_sym.asym.index; |
| 4000 | if (sym_ptr->ecoff_sym.asym.st == st_Nil |
| 4001 | && sym_ptr->ecoff_sym.asym.sc == sc_Nil |
| 4002 | && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) |
| 4003 | || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC) |
| 4004 | && (ECOFF_UNMARK_STAB (indx) != N_RBRAC)))) |
| 4005 | { |
| 4006 | segT seg; |
| 4007 | const char *segname; |
| 4008 | st_t st; |
| 4009 | sc_t sc; |
| 4010 | |
| 4011 | seg = S_GET_SEGMENT (as_sym); |
| 4012 | segname = segment_name (seg); |
| 4013 | |
| 4014 | if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym) |
| 4015 | && (S_IS_EXTERNAL (as_sym) |
| 4016 | || S_IS_WEAK (as_sym) |
| 4017 | || ! S_IS_DEFINED (as_sym))) |
| 4018 | { |
| 4019 | if ((symbol_get_bfdsym (as_sym)->flags |
| 4020 | & BSF_FUNCTION) != 0) |
| 4021 | st = st_Proc; |
| 4022 | else |
| 4023 | st = st_Global; |
| 4024 | } |
| 4025 | else if (seg == text_section) |
| 4026 | st = st_Label; |
| 4027 | else |
| 4028 | st = st_Static; |
| 4029 | |
| 4030 | if (! S_IS_DEFINED (as_sym)) |
| 4031 | { |
| 4032 | valueT s; |
| 4033 | |
| 4034 | s = symbol_get_obj (as_sym)->ecoff_extern_size; |
| 4035 | if (s == 0 |
| 4036 | || s > bfd_get_gp_size (stdoutput)) |
| 4037 | sc = sc_Undefined; |
| 4038 | else |
| 4039 | { |
| 4040 | sc = sc_SUndefined; |
| 4041 | sym_ptr->ecoff_sym.asym.value = s; |
| 4042 | } |
| 4043 | #ifdef S_SET_SIZE |
| 4044 | S_SET_SIZE (as_sym, s); |
| 4045 | #endif |
| 4046 | } |
| 4047 | else if (S_IS_COMMON (as_sym)) |
| 4048 | { |
| 4049 | if (S_GET_VALUE (as_sym) > 0 |
| 4050 | && (S_GET_VALUE (as_sym) |
| 4051 | <= bfd_get_gp_size (stdoutput))) |
| 4052 | sc = sc_SCommon; |
| 4053 | else |
| 4054 | sc = sc_Common; |
| 4055 | } |
| 4056 | else if (seg == text_section) |
| 4057 | sc = sc_Text; |
| 4058 | else if (seg == data_section) |
| 4059 | sc = sc_Data; |
| 4060 | else if (strcmp (segname, ".rdata") == 0 |
| 4061 | || strcmp (segname, ".rodata") == 0) |
| 4062 | sc = sc_RData; |
| 4063 | else if (strcmp (segname, ".sdata") == 0) |
| 4064 | sc = sc_SData; |
| 4065 | else if (seg == bss_section) |
| 4066 | sc = sc_Bss; |
| 4067 | else if (strcmp (segname, ".sbss") == 0) |
| 4068 | sc = sc_SBss; |
| 4069 | else if (seg == &bfd_abs_section) |
| 4070 | sc = sc_Abs; |
| 4071 | else |
| 4072 | { |
| 4073 | /* This must be a user named section. |
| 4074 | This is not possible in ECOFF, but it |
| 4075 | is in ELF. */ |
| 4076 | sc = sc_Data; |
| 4077 | } |
| 4078 | |
| 4079 | sym_ptr->ecoff_sym.asym.st = (int) st; |
| 4080 | sym_ptr->ecoff_sym.asym.sc = (int) sc; |
| 4081 | } |
| 4082 | |
| 4083 | /* This is just an external symbol if it is |
| 4084 | outside a procedure and it has a type. |
| 4085 | FIXME: g++ will generate symbols which have |
| 4086 | different names in the debugging information |
| 4087 | than the actual symbol. Should we handle |
| 4088 | them here? */ |
| 4089 | if ((S_IS_EXTERNAL (as_sym) |
| 4090 | || S_IS_WEAK (as_sym) |
| 4091 | || ! S_IS_DEFINED (as_sym)) |
| 4092 | && sym_ptr->proc_ptr == (proc_t *) NULL |
| 4093 | && sym_ptr->ecoff_sym.asym.st != (int) st_Nil |
| 4094 | && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)) |
| 4095 | local = 0; |
| 4096 | |
| 4097 | /* This is just an external symbol if it is a |
| 4098 | common symbol. */ |
| 4099 | if (S_IS_COMMON (as_sym)) |
| 4100 | local = 0; |
| 4101 | |
| 4102 | /* If an st_end symbol has an associated gas |
| 4103 | symbol, then it is a local label created for |
| 4104 | a .bend or .end directive. Stabs line |
| 4105 | numbers will have \001 in the names. */ |
| 4106 | if (local |
| 4107 | && sym_ptr->ecoff_sym.asym.st != st_End |
| 4108 | && strchr (sym_ptr->name, '\001') == 0) |
| 4109 | sym_ptr->ecoff_sym.asym.iss = |
| 4110 | add_string (&fil_ptr->strings, |
| 4111 | fil_ptr->str_hash, |
| 4112 | sym_ptr->name, |
| 4113 | (shash_t **) NULL); |
| 4114 | } |
| 4115 | |
| 4116 | /* We now know the index of this symbol; fill in |
| 4117 | locations that have been waiting for that |
| 4118 | information. */ |
| 4119 | if (sym_ptr->begin_ptr != (localsym_t *) NULL) |
| 4120 | { |
| 4121 | localsym_t *begin_ptr; |
| 4122 | st_t begin_type; |
| 4123 | |
| 4124 | know (local); |
| 4125 | begin_ptr = sym_ptr->begin_ptr; |
| 4126 | know (begin_ptr->sym_index != -1); |
| 4127 | sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index; |
| 4128 | if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) |
| 4129 | sym_ptr->ecoff_sym.asym.iss = |
| 4130 | begin_ptr->ecoff_sym.asym.iss; |
| 4131 | |
| 4132 | begin_type = begin_ptr->ecoff_sym.asym.st; |
| 4133 | if (begin_type == st_File |
| 4134 | || begin_type == st_Block) |
| 4135 | { |
| 4136 | begin_ptr->ecoff_sym.asym.index = |
| 4137 | isym - ifilesym + 1; |
| 4138 | (*swap_sym_out) (stdoutput, |
| 4139 | &begin_ptr->ecoff_sym.asym, |
| 4140 | (*buf |
| 4141 | + offset |
| 4142 | + (begin_ptr->sym_index |
| 4143 | * external_sym_size))); |
| 4144 | } |
| 4145 | else |
| 4146 | { |
| 4147 | know (begin_ptr->index_ptr != (aux_t *) NULL); |
| 4148 | begin_ptr->index_ptr->data.isym = |
| 4149 | isym - ifilesym + 1; |
| 4150 | } |
| 4151 | |
| 4152 | /* The value of the symbol marking the end of a |
| 4153 | procedure is the size of the procedure. The |
| 4154 | value of the symbol marking the end of a |
| 4155 | block is the offset from the start of the |
| 4156 | procedure to the block. */ |
| 4157 | if (begin_type == st_Proc |
| 4158 | || begin_type == st_StaticProc) |
| 4159 | { |
| 4160 | know (as_sym != (symbolS *) NULL); |
| 4161 | know (begin_ptr->as_sym != (symbolS *) NULL); |
| 4162 | if (S_GET_SEGMENT (as_sym) |
| 4163 | != S_GET_SEGMENT (begin_ptr->as_sym)) |
| 4164 | as_warn (_(".begin/.bend in different segments")); |
| 4165 | sym_ptr->ecoff_sym.asym.value = |
| 4166 | (S_GET_VALUE (as_sym) |
| 4167 | - S_GET_VALUE (begin_ptr->as_sym)); |
| 4168 | |
| 4169 | /* If the size is odd, this is probably a |
| 4170 | mips16 function; force it to be even. */ |
| 4171 | if ((sym_ptr->ecoff_sym.asym.value & 1) != 0) |
| 4172 | ++sym_ptr->ecoff_sym.asym.value; |
| 4173 | |
| 4174 | #ifdef S_SET_SIZE |
| 4175 | S_SET_SIZE (begin_ptr->as_sym, |
| 4176 | sym_ptr->ecoff_sym.asym.value); |
| 4177 | #endif |
| 4178 | } |
| 4179 | else if (begin_type == st_Block |
| 4180 | && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info) |
| 4181 | { |
| 4182 | symbolS *begin_sym; |
| 4183 | |
| 4184 | know (as_sym != (symbolS *) NULL); |
| 4185 | know (sym_ptr->proc_ptr != (proc_t *) NULL); |
| 4186 | begin_sym = sym_ptr->proc_ptr->sym->as_sym; |
| 4187 | if (S_GET_SEGMENT (as_sym) |
| 4188 | != S_GET_SEGMENT (begin_sym)) |
| 4189 | as_warn (_(".begin/.bend in different segments")); |
| 4190 | sym_ptr->ecoff_sym.asym.value = |
| 4191 | S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym); |
| 4192 | } |
| 4193 | } |
| 4194 | |
| 4195 | for (f = sym_ptr->forward_ref; |
| 4196 | f != (forward_t *) NULL; |
| 4197 | f = f->next) |
| 4198 | { |
| 4199 | know (local); |
| 4200 | f->ifd_ptr->data.isym = fil_ptr->file_index; |
| 4201 | f->index_ptr->data.rndx.index = isym - ifilesym; |
| 4202 | } |
| 4203 | |
| 4204 | if (local) |
| 4205 | { |
| 4206 | if ((bfd_size_type)(*bufend - sym_out) < external_sym_size) |
| 4207 | sym_out = ecoff_add_bytes (buf, bufend, |
| 4208 | sym_out, |
| 4209 | external_sym_size); |
| 4210 | (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym, |
| 4211 | sym_out); |
| 4212 | sym_out += external_sym_size; |
| 4213 | |
| 4214 | sym_ptr->sym_index = isym; |
| 4215 | |
| 4216 | if (sym_ptr->proc_ptr != (proc_t *) NULL |
| 4217 | && sym_ptr->proc_ptr->sym == sym_ptr) |
| 4218 | sym_ptr->proc_ptr->pdr.isym = isym - ifilesym; |
| 4219 | |
| 4220 | ++isym; |
| 4221 | } |
| 4222 | |
| 4223 | /* Record the local symbol index and file number in |
| 4224 | case this is an external symbol. Note that this |
| 4225 | destroys the asym.index field. */ |
| 4226 | if (as_sym != (symbolS *) NULL |
| 4227 | && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr) |
| 4228 | { |
| 4229 | if ((sym_ptr->ecoff_sym.asym.st == st_Proc |
| 4230 | || sym_ptr->ecoff_sym.asym.st == st_StaticProc) |
| 4231 | && local) |
| 4232 | sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1; |
| 4233 | sym_ptr->ecoff_sym.ifd = fil_ptr->file_index; |
| 4234 | |
| 4235 | /* Don't try to merge an FDR which has an |
| 4236 | external symbol attached to it. */ |
| 4237 | if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym)) |
| 4238 | fil_ptr->fdr.fMerge = 0; |
| 4239 | } |
| 4240 | } |
| 4241 | } |
| 4242 | fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase; |
| 4243 | } |
| 4244 | } |
| 4245 | |
| 4246 | return offset + isym * external_sym_size; |
| 4247 | } |
| 4248 | |
| 4249 | /* Swap out the procedure information. */ |
| 4250 | |
| 4251 | static unsigned long |
| 4252 | ecoff_build_procs (const struct ecoff_debug_swap *backend, |
| 4253 | char **buf, |
| 4254 | char **bufend, |
| 4255 | unsigned long offset) |
| 4256 | { |
| 4257 | const bfd_size_type external_pdr_size = backend->external_pdr_size; |
| 4258 | void (* const swap_pdr_out) (bfd *, const PDR *, PTR) |
| 4259 | = backend->swap_pdr_out; |
| 4260 | char *pdr_out; |
| 4261 | long iproc; |
| 4262 | vlinks_t *file_link; |
| 4263 | |
| 4264 | pdr_out = *buf + offset; |
| 4265 | |
| 4266 | iproc = 0; |
| 4267 | |
| 4268 | /* The procedures are stored by file. */ |
| 4269 | for (file_link = file_desc.first; |
| 4270 | file_link != (vlinks_t *) NULL; |
| 4271 | file_link = file_link->next) |
| 4272 | { |
| 4273 | int fil_cnt; |
| 4274 | efdr_t *fil_ptr; |
| 4275 | efdr_t *fil_end; |
| 4276 | |
| 4277 | if (file_link->next == (vlinks_t *) NULL) |
| 4278 | fil_cnt = file_desc.objects_last_page; |
| 4279 | else |
| 4280 | fil_cnt = file_desc.objects_per_page; |
| 4281 | fil_ptr = file_link->datum->file; |
| 4282 | fil_end = fil_ptr + fil_cnt; |
| 4283 | for (; fil_ptr < fil_end; fil_ptr++) |
| 4284 | { |
| 4285 | vlinks_t *proc_link; |
| 4286 | int first; |
| 4287 | |
| 4288 | fil_ptr->fdr.ipdFirst = iproc; |
| 4289 | first = 1; |
| 4290 | for (proc_link = fil_ptr->procs.first; |
| 4291 | proc_link != (vlinks_t *) NULL; |
| 4292 | proc_link = proc_link->next) |
| 4293 | { |
| 4294 | int prc_cnt; |
| 4295 | proc_t *proc_ptr; |
| 4296 | proc_t *proc_end; |
| 4297 | |
| 4298 | if (proc_link->next == (vlinks_t *) NULL) |
| 4299 | prc_cnt = fil_ptr->procs.objects_last_page; |
| 4300 | else |
| 4301 | prc_cnt = fil_ptr->procs.objects_per_page; |
| 4302 | proc_ptr = proc_link->datum->proc; |
| 4303 | proc_end = proc_ptr + prc_cnt; |
| 4304 | for (; proc_ptr < proc_end; proc_ptr++) |
| 4305 | { |
| 4306 | symbolS *adr_sym; |
| 4307 | unsigned long adr; |
| 4308 | |
| 4309 | adr_sym = proc_ptr->sym->as_sym; |
| 4310 | adr = (S_GET_VALUE (adr_sym) |
| 4311 | + bfd_get_section_vma (stdoutput, |
| 4312 | S_GET_SEGMENT (adr_sym))); |
| 4313 | if (first) |
| 4314 | { |
| 4315 | /* This code used to force the adr of the very |
| 4316 | first fdr to be 0. However, the native tools |
| 4317 | don't do that, and I can't remember why it |
| 4318 | used to work that way, so I took it out. */ |
| 4319 | fil_ptr->fdr.adr = adr; |
| 4320 | first = 0; |
| 4321 | } |
| 4322 | proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr; |
| 4323 | if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size) |
| 4324 | pdr_out = ecoff_add_bytes (buf, bufend, |
| 4325 | pdr_out, |
| 4326 | external_pdr_size); |
| 4327 | (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out); |
| 4328 | pdr_out += external_pdr_size; |
| 4329 | ++iproc; |
| 4330 | } |
| 4331 | } |
| 4332 | fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst; |
| 4333 | } |
| 4334 | } |
| 4335 | |
| 4336 | return offset + iproc * external_pdr_size; |
| 4337 | } |
| 4338 | |
| 4339 | /* Swap out the aux information. */ |
| 4340 | |
| 4341 | static unsigned long |
| 4342 | ecoff_build_aux (const struct ecoff_debug_swap *backend, |
| 4343 | char **buf, |
| 4344 | char **bufend, |
| 4345 | unsigned long offset) |
| 4346 | { |
| 4347 | int bigendian; |
| 4348 | union aux_ext *aux_out; |
| 4349 | long iaux; |
| 4350 | vlinks_t *file_link; |
| 4351 | |
| 4352 | bigendian = bfd_big_endian (stdoutput); |
| 4353 | |
| 4354 | aux_out = (union aux_ext *) (*buf + offset); |
| 4355 | |
| 4356 | iaux = 0; |
| 4357 | |
| 4358 | /* The aux entries are stored by file. */ |
| 4359 | for (file_link = file_desc.first; |
| 4360 | file_link != (vlinks_t *) NULL; |
| 4361 | file_link = file_link->next) |
| 4362 | { |
| 4363 | int fil_cnt; |
| 4364 | efdr_t *fil_ptr; |
| 4365 | efdr_t *fil_end; |
| 4366 | |
| 4367 | if (file_link->next == (vlinks_t *) NULL) |
| 4368 | fil_cnt = file_desc.objects_last_page; |
| 4369 | else |
| 4370 | fil_cnt = file_desc.objects_per_page; |
| 4371 | fil_ptr = file_link->datum->file; |
| 4372 | fil_end = fil_ptr + fil_cnt; |
| 4373 | for (; fil_ptr < fil_end; fil_ptr++) |
| 4374 | { |
| 4375 | vlinks_t *aux_link; |
| 4376 | |
| 4377 | fil_ptr->fdr.fBigendian = bigendian; |
| 4378 | fil_ptr->fdr.iauxBase = iaux; |
| 4379 | for (aux_link = fil_ptr->aux_syms.first; |
| 4380 | aux_link != (vlinks_t *) NULL; |
| 4381 | aux_link = aux_link->next) |
| 4382 | { |
| 4383 | int aux_cnt; |
| 4384 | aux_t *aux_ptr; |
| 4385 | aux_t *aux_end; |
| 4386 | |
| 4387 | if (aux_link->next == (vlinks_t *) NULL) |
| 4388 | aux_cnt = fil_ptr->aux_syms.objects_last_page; |
| 4389 | else |
| 4390 | aux_cnt = fil_ptr->aux_syms.objects_per_page; |
| 4391 | aux_ptr = aux_link->datum->aux; |
| 4392 | aux_end = aux_ptr + aux_cnt; |
| 4393 | for (; aux_ptr < aux_end; aux_ptr++) |
| 4394 | { |
| 4395 | if ((unsigned long) (*bufend - (char *) aux_out) |
| 4396 | < sizeof (union aux_ext)) |
| 4397 | aux_out = ((union aux_ext *) |
| 4398 | ecoff_add_bytes (buf, bufend, |
| 4399 | (char *) aux_out, |
| 4400 | sizeof (union aux_ext))); |
| 4401 | switch (aux_ptr->type) |
| 4402 | { |
| 4403 | case aux_tir: |
| 4404 | (*backend->swap_tir_out) (bigendian, |
| 4405 | &aux_ptr->data.ti, |
| 4406 | &aux_out->a_ti); |
| 4407 | break; |
| 4408 | case aux_rndx: |
| 4409 | (*backend->swap_rndx_out) (bigendian, |
| 4410 | &aux_ptr->data.rndx, |
| 4411 | &aux_out->a_rndx); |
| 4412 | break; |
| 4413 | case aux_dnLow: |
| 4414 | AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow, |
| 4415 | aux_out); |
| 4416 | break; |
| 4417 | case aux_dnHigh: |
| 4418 | AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh, |
| 4419 | aux_out); |
| 4420 | break; |
| 4421 | case aux_isym: |
| 4422 | AUX_PUT_ISYM (bigendian, aux_ptr->data.isym, |
| 4423 | aux_out); |
| 4424 | break; |
| 4425 | case aux_iss: |
| 4426 | AUX_PUT_ISS (bigendian, aux_ptr->data.iss, |
| 4427 | aux_out); |
| 4428 | break; |
| 4429 | case aux_width: |
| 4430 | AUX_PUT_WIDTH (bigendian, aux_ptr->data.width, |
| 4431 | aux_out); |
| 4432 | break; |
| 4433 | case aux_count: |
| 4434 | AUX_PUT_COUNT (bigendian, aux_ptr->data.count, |
| 4435 | aux_out); |
| 4436 | break; |
| 4437 | } |
| 4438 | |
| 4439 | ++aux_out; |
| 4440 | ++iaux; |
| 4441 | } |
| 4442 | } |
| 4443 | fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase; |
| 4444 | } |
| 4445 | } |
| 4446 | |
| 4447 | return ecoff_padding_adjust (backend, buf, bufend, |
| 4448 | offset + iaux * sizeof (union aux_ext), |
| 4449 | (char **) NULL); |
| 4450 | } |
| 4451 | |
| 4452 | /* Copy out the strings from a varray_t. This returns the number of |
| 4453 | bytes copied, rather than the new offset. */ |
| 4454 | |
| 4455 | static unsigned long |
| 4456 | ecoff_build_strings (char **buf, |
| 4457 | char **bufend, |
| 4458 | unsigned long offset, |
| 4459 | varray_t *vp) |
| 4460 | { |
| 4461 | unsigned long istr; |
| 4462 | char *str_out; |
| 4463 | vlinks_t *str_link; |
| 4464 | |
| 4465 | str_out = *buf + offset; |
| 4466 | |
| 4467 | istr = 0; |
| 4468 | |
| 4469 | for (str_link = vp->first; |
| 4470 | str_link != (vlinks_t *) NULL; |
| 4471 | str_link = str_link->next) |
| 4472 | { |
| 4473 | unsigned long str_cnt; |
| 4474 | |
| 4475 | if (str_link->next == (vlinks_t *) NULL) |
| 4476 | str_cnt = vp->objects_last_page; |
| 4477 | else |
| 4478 | str_cnt = vp->objects_per_page; |
| 4479 | |
| 4480 | if ((unsigned long)(*bufend - str_out) < str_cnt) |
| 4481 | str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt); |
| 4482 | |
| 4483 | memcpy (str_out, str_link->datum->byte, str_cnt); |
| 4484 | str_out += str_cnt; |
| 4485 | istr += str_cnt; |
| 4486 | } |
| 4487 | |
| 4488 | return istr; |
| 4489 | } |
| 4490 | |
| 4491 | /* Dump out the local strings. */ |
| 4492 | |
| 4493 | static unsigned long |
| 4494 | ecoff_build_ss (const struct ecoff_debug_swap *backend, |
| 4495 | char **buf, |
| 4496 | char **bufend, |
| 4497 | unsigned long offset) |
| 4498 | { |
| 4499 | long iss; |
| 4500 | vlinks_t *file_link; |
| 4501 | |
| 4502 | iss = 0; |
| 4503 | |
| 4504 | for (file_link = file_desc.first; |
| 4505 | file_link != (vlinks_t *) NULL; |
| 4506 | file_link = file_link->next) |
| 4507 | { |
| 4508 | int fil_cnt; |
| 4509 | efdr_t *fil_ptr; |
| 4510 | efdr_t *fil_end; |
| 4511 | |
| 4512 | if (file_link->next == (vlinks_t *) NULL) |
| 4513 | fil_cnt = file_desc.objects_last_page; |
| 4514 | else |
| 4515 | fil_cnt = file_desc.objects_per_page; |
| 4516 | fil_ptr = file_link->datum->file; |
| 4517 | fil_end = fil_ptr + fil_cnt; |
| 4518 | for (; fil_ptr < fil_end; fil_ptr++) |
| 4519 | { |
| 4520 | long ss_cnt; |
| 4521 | |
| 4522 | fil_ptr->fdr.issBase = iss; |
| 4523 | ss_cnt = ecoff_build_strings (buf, bufend, offset + iss, |
| 4524 | &fil_ptr->strings); |
| 4525 | fil_ptr->fdr.cbSs = ss_cnt; |
| 4526 | iss += ss_cnt; |
| 4527 | } |
| 4528 | } |
| 4529 | |
| 4530 | return ecoff_padding_adjust (backend, buf, bufend, offset + iss, |
| 4531 | (char **) NULL); |
| 4532 | } |
| 4533 | |
| 4534 | /* Swap out the file descriptors. */ |
| 4535 | |
| 4536 | static unsigned long |
| 4537 | ecoff_build_fdr (const struct ecoff_debug_swap *backend, |
| 4538 | char **buf, |
| 4539 | char **bufend, |
| 4540 | unsigned long offset) |
| 4541 | { |
| 4542 | const bfd_size_type external_fdr_size = backend->external_fdr_size; |
| 4543 | void (* const swap_fdr_out) (bfd *, const FDR *, PTR) |
| 4544 | = backend->swap_fdr_out; |
| 4545 | long ifile; |
| 4546 | char *fdr_out; |
| 4547 | vlinks_t *file_link; |
| 4548 | |
| 4549 | ifile = 0; |
| 4550 | |
| 4551 | fdr_out = *buf + offset; |
| 4552 | |
| 4553 | for (file_link = file_desc.first; |
| 4554 | file_link != (vlinks_t *) NULL; |
| 4555 | file_link = file_link->next) |
| 4556 | { |
| 4557 | int fil_cnt; |
| 4558 | efdr_t *fil_ptr; |
| 4559 | efdr_t *fil_end; |
| 4560 | |
| 4561 | if (file_link->next == (vlinks_t *) NULL) |
| 4562 | fil_cnt = file_desc.objects_last_page; |
| 4563 | else |
| 4564 | fil_cnt = file_desc.objects_per_page; |
| 4565 | fil_ptr = file_link->datum->file; |
| 4566 | fil_end = fil_ptr + fil_cnt; |
| 4567 | for (; fil_ptr < fil_end; fil_ptr++) |
| 4568 | { |
| 4569 | if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size) |
| 4570 | fdr_out = ecoff_add_bytes (buf, bufend, fdr_out, |
| 4571 | external_fdr_size); |
| 4572 | (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out); |
| 4573 | fdr_out += external_fdr_size; |
| 4574 | ++ifile; |
| 4575 | } |
| 4576 | } |
| 4577 | |
| 4578 | return offset + ifile * external_fdr_size; |
| 4579 | } |
| 4580 | |
| 4581 | /* Set up the external symbols. These are supposed to be handled by |
| 4582 | the backend. This routine just gets the right information and |
| 4583 | calls a backend function to deal with it. */ |
| 4584 | |
| 4585 | static void |
| 4586 | ecoff_setup_ext (void) |
| 4587 | { |
| 4588 | register symbolS *sym; |
| 4589 | |
| 4590 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) |
| 4591 | { |
| 4592 | if (symbol_get_obj (sym)->ecoff_symbol == NULL) |
| 4593 | continue; |
| 4594 | |
| 4595 | /* If this is a local symbol, then force the fields to zero. */ |
| 4596 | if (! S_IS_EXTERNAL (sym) |
| 4597 | && ! S_IS_WEAK (sym) |
| 4598 | && S_IS_DEFINED (sym)) |
| 4599 | { |
| 4600 | struct localsym *lsym; |
| 4601 | |
| 4602 | lsym = symbol_get_obj (sym)->ecoff_symbol; |
| 4603 | lsym->ecoff_sym.asym.value = 0; |
| 4604 | lsym->ecoff_sym.asym.st = (int) st_Nil; |
| 4605 | lsym->ecoff_sym.asym.sc = (int) sc_Nil; |
| 4606 | lsym->ecoff_sym.asym.index = indexNil; |
| 4607 | } |
| 4608 | |
| 4609 | obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym); |
| 4610 | } |
| 4611 | } |
| 4612 | |
| 4613 | /* Build the ECOFF debugging information. */ |
| 4614 | |
| 4615 | unsigned long |
| 4616 | ecoff_build_debug (HDRR *hdr, |
| 4617 | char **bufp, |
| 4618 | const struct ecoff_debug_swap *backend) |
| 4619 | { |
| 4620 | const bfd_size_type external_pdr_size = backend->external_pdr_size; |
| 4621 | tag_t *ptag; |
| 4622 | tag_t *ptag_next; |
| 4623 | efdr_t *fil_ptr; |
| 4624 | int end_warning; |
| 4625 | efdr_t *hold_file_ptr; |
| 4626 | proc_t *hold_proc_ptr; |
| 4627 | symbolS *sym; |
| 4628 | char *buf; |
| 4629 | char *bufend; |
| 4630 | unsigned long offset; |
| 4631 | |
| 4632 | /* Make sure we have a file. */ |
| 4633 | if (first_file == (efdr_t *) NULL) |
| 4634 | add_file ((const char *) NULL, 0, 1); |
| 4635 | |
| 4636 | /* Handle any top level tags. */ |
| 4637 | for (ptag = top_tag_head->first_tag; |
| 4638 | ptag != (tag_t *) NULL; |
| 4639 | ptag = ptag_next) |
| 4640 | { |
| 4641 | if (ptag->forward_ref != (forward_t *) NULL) |
| 4642 | add_unknown_tag (ptag); |
| 4643 | |
| 4644 | ptag_next = ptag->same_block; |
| 4645 | ptag->hash_ptr->tag_ptr = ptag->same_name; |
| 4646 | free_tag (ptag); |
| 4647 | } |
| 4648 | |
| 4649 | free_thead (top_tag_head); |
| 4650 | |
| 4651 | /* Look through the symbols. Add debugging information for each |
| 4652 | symbol that has not already received it. */ |
| 4653 | hold_file_ptr = cur_file_ptr; |
| 4654 | hold_proc_ptr = cur_proc_ptr; |
| 4655 | cur_proc_ptr = (proc_t *) NULL; |
| 4656 | for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym)) |
| 4657 | { |
| 4658 | if (symbol_get_obj (sym)->ecoff_symbol != NULL |
| 4659 | || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL |
| 4660 | || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0) |
| 4661 | continue; |
| 4662 | |
| 4663 | cur_file_ptr = symbol_get_obj (sym)->ecoff_file; |
| 4664 | add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym, |
| 4665 | (bfd_vma) 0, S_GET_VALUE (sym), indexNil); |
| 4666 | } |
| 4667 | cur_proc_ptr = hold_proc_ptr; |
| 4668 | cur_file_ptr = hold_file_ptr; |
| 4669 | |
| 4670 | /* Output an ending symbol for all the files. We have to do this |
| 4671 | here for the last file, so we may as well do it for all of the |
| 4672 | files. */ |
| 4673 | end_warning = 0; |
| 4674 | for (fil_ptr = first_file; |
| 4675 | fil_ptr != (efdr_t *) NULL; |
| 4676 | fil_ptr = fil_ptr->next_file) |
| 4677 | { |
| 4678 | cur_file_ptr = fil_ptr; |
| 4679 | while (cur_file_ptr->cur_scope != (scope_t *) NULL |
| 4680 | && cur_file_ptr->cur_scope->prev != (scope_t *) NULL) |
| 4681 | { |
| 4682 | cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev; |
| 4683 | if (! end_warning && ! cur_file_ptr->fake) |
| 4684 | { |
| 4685 | as_warn (_("missing .end or .bend at end of file")); |
| 4686 | end_warning = 1; |
| 4687 | } |
| 4688 | } |
| 4689 | if (cur_file_ptr->cur_scope != (scope_t *) NULL) |
| 4690 | (void) add_ecoff_symbol ((const char *) NULL, |
| 4691 | st_End, sc_Text, |
| 4692 | (symbolS *) NULL, |
| 4693 | (bfd_vma) 0, |
| 4694 | (symint_t) 0, |
| 4695 | (symint_t) 0); |
| 4696 | } |
| 4697 | |
| 4698 | /* Build the symbolic information. */ |
| 4699 | offset = 0; |
| 4700 | buf = xmalloc (PAGE_SIZE); |
| 4701 | bufend = buf + PAGE_SIZE; |
| 4702 | |
| 4703 | /* Build the line number information. */ |
| 4704 | hdr->cbLineOffset = offset; |
| 4705 | offset = ecoff_build_lineno (backend, &buf, &bufend, offset, |
| 4706 | &hdr->ilineMax); |
| 4707 | hdr->cbLine = offset - hdr->cbLineOffset; |
| 4708 | |
| 4709 | /* We don't use dense numbers at all. */ |
| 4710 | hdr->idnMax = 0; |
| 4711 | hdr->cbDnOffset = 0; |
| 4712 | |
| 4713 | /* We can't build the PDR table until we have built the symbols, |
| 4714 | because a PDR contains a symbol index. However, we set aside |
| 4715 | space at this point. */ |
| 4716 | hdr->ipdMax = proc_cnt; |
| 4717 | hdr->cbPdOffset = offset; |
| 4718 | if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size) |
| 4719 | (void) ecoff_add_bytes (&buf, &bufend, buf + offset, |
| 4720 | proc_cnt * external_pdr_size); |
| 4721 | offset += proc_cnt * external_pdr_size; |
| 4722 | |
| 4723 | /* Build the local symbols. */ |
| 4724 | hdr->cbSymOffset = offset; |
| 4725 | offset = ecoff_build_symbols (backend, &buf, &bufend, offset); |
| 4726 | hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size; |
| 4727 | |
| 4728 | /* Building the symbols initializes the symbol index in the PDR's. |
| 4729 | Now we can swap out the PDR's. */ |
| 4730 | (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset); |
| 4731 | |
| 4732 | /* We don't use optimization symbols. */ |
| 4733 | hdr->ioptMax = 0; |
| 4734 | hdr->cbOptOffset = 0; |
| 4735 | |
| 4736 | /* Swap out the auxiliary type information. */ |
| 4737 | hdr->cbAuxOffset = offset; |
| 4738 | offset = ecoff_build_aux (backend, &buf, &bufend, offset); |
| 4739 | hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext); |
| 4740 | |
| 4741 | /* Copy out the local strings. */ |
| 4742 | hdr->cbSsOffset = offset; |
| 4743 | offset = ecoff_build_ss (backend, &buf, &bufend, offset); |
| 4744 | hdr->issMax = offset - hdr->cbSsOffset; |
| 4745 | |
| 4746 | /* We don't use relative file descriptors. */ |
| 4747 | hdr->crfd = 0; |
| 4748 | hdr->cbRfdOffset = 0; |
| 4749 | |
| 4750 | /* Swap out the file descriptors. */ |
| 4751 | hdr->cbFdOffset = offset; |
| 4752 | offset = ecoff_build_fdr (backend, &buf, &bufend, offset); |
| 4753 | hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size; |
| 4754 | |
| 4755 | /* Set up the external symbols, which are handled by the BFD back |
| 4756 | end. */ |
| 4757 | hdr->issExtMax = 0; |
| 4758 | hdr->cbSsExtOffset = 0; |
| 4759 | hdr->iextMax = 0; |
| 4760 | hdr->cbExtOffset = 0; |
| 4761 | ecoff_setup_ext (); |
| 4762 | |
| 4763 | know ((offset & (backend->debug_align - 1)) == 0); |
| 4764 | |
| 4765 | /* FIXME: This value should be determined from the .verstamp directive, |
| 4766 | with reasonable defaults in config files. */ |
| 4767 | #ifdef TC_ALPHA |
| 4768 | hdr->vstamp = 0x030b; |
| 4769 | #else |
| 4770 | hdr->vstamp = 0x020b; |
| 4771 | #endif |
| 4772 | |
| 4773 | *bufp = buf; |
| 4774 | return offset; |
| 4775 | } |
| 4776 | \f |
| 4777 | /* Allocate a cluster of pages. */ |
| 4778 | |
| 4779 | #ifndef MALLOC_CHECK |
| 4780 | |
| 4781 | static page_type * |
| 4782 | allocate_cluster (unsigned long npages) |
| 4783 | { |
| 4784 | register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE); |
| 4785 | |
| 4786 | #ifdef ECOFF_DEBUG |
| 4787 | if (debug > 3) |
| 4788 | fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value); |
| 4789 | #endif |
| 4790 | |
| 4791 | memset (value, 0, npages * PAGE_USIZE); |
| 4792 | |
| 4793 | return value; |
| 4794 | } |
| 4795 | |
| 4796 | static page_type *cluster_ptr = NULL; |
| 4797 | static unsigned long pages_left = 0; |
| 4798 | |
| 4799 | #endif /* MALLOC_CHECK */ |
| 4800 | |
| 4801 | /* Allocate one page (which is initialized to 0). */ |
| 4802 | |
| 4803 | static page_type * |
| 4804 | allocate_page (void) |
| 4805 | { |
| 4806 | #ifndef MALLOC_CHECK |
| 4807 | |
| 4808 | if (pages_left == 0) |
| 4809 | { |
| 4810 | pages_left = MAX_CLUSTER_PAGES; |
| 4811 | cluster_ptr = allocate_cluster (pages_left); |
| 4812 | } |
| 4813 | |
| 4814 | pages_left--; |
| 4815 | return cluster_ptr++; |
| 4816 | |
| 4817 | #else /* MALLOC_CHECK */ |
| 4818 | |
| 4819 | page_type *ptr; |
| 4820 | |
| 4821 | ptr = xmalloc (PAGE_USIZE); |
| 4822 | memset (ptr, 0, PAGE_USIZE); |
| 4823 | return ptr; |
| 4824 | |
| 4825 | #endif /* MALLOC_CHECK */ |
| 4826 | } |
| 4827 | \f |
| 4828 | /* Allocate scoping information. */ |
| 4829 | |
| 4830 | static scope_t * |
| 4831 | allocate_scope (void) |
| 4832 | { |
| 4833 | register scope_t *ptr; |
| 4834 | static scope_t initial_scope; |
| 4835 | |
| 4836 | #ifndef MALLOC_CHECK |
| 4837 | |
| 4838 | ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope; |
| 4839 | if (ptr != (scope_t *) NULL) |
| 4840 | alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free; |
| 4841 | else |
| 4842 | { |
| 4843 | register int unallocated = alloc_counts[(int) alloc_type_scope].unallocated; |
| 4844 | register page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page; |
| 4845 | |
| 4846 | if (unallocated == 0) |
| 4847 | { |
| 4848 | unallocated = PAGE_SIZE / sizeof (scope_t); |
| 4849 | alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page (); |
| 4850 | alloc_counts[(int) alloc_type_scope].total_pages++; |
| 4851 | } |
| 4852 | |
| 4853 | ptr = &cur_page->scope[--unallocated]; |
| 4854 | alloc_counts[(int) alloc_type_scope].unallocated = unallocated; |
| 4855 | } |
| 4856 | |
| 4857 | #else |
| 4858 | |
| 4859 | ptr = (scope_t *) xmalloc (sizeof (scope_t)); |
| 4860 | |
| 4861 | #endif |
| 4862 | |
| 4863 | alloc_counts[(int) alloc_type_scope].total_alloc++; |
| 4864 | *ptr = initial_scope; |
| 4865 | return ptr; |
| 4866 | } |
| 4867 | |
| 4868 | /* Free scoping information. */ |
| 4869 | |
| 4870 | static void |
| 4871 | free_scope (scope_t *ptr) |
| 4872 | { |
| 4873 | alloc_counts[(int) alloc_type_scope].total_free++; |
| 4874 | |
| 4875 | #ifndef MALLOC_CHECK |
| 4876 | ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope; |
| 4877 | alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr; |
| 4878 | #else |
| 4879 | free ((PTR) ptr); |
| 4880 | #endif |
| 4881 | } |
| 4882 | \f |
| 4883 | /* Allocate links for pages in a virtual array. */ |
| 4884 | |
| 4885 | static vlinks_t * |
| 4886 | allocate_vlinks (void) |
| 4887 | { |
| 4888 | register vlinks_t *ptr; |
| 4889 | static vlinks_t initial_vlinks; |
| 4890 | |
| 4891 | #ifndef MALLOC_CHECK |
| 4892 | |
| 4893 | register int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated; |
| 4894 | register page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page; |
| 4895 | |
| 4896 | if (unallocated == 0) |
| 4897 | { |
| 4898 | unallocated = PAGE_SIZE / sizeof (vlinks_t); |
| 4899 | alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page (); |
| 4900 | alloc_counts[(int) alloc_type_vlinks].total_pages++; |
| 4901 | } |
| 4902 | |
| 4903 | ptr = &cur_page->vlinks[--unallocated]; |
| 4904 | alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated; |
| 4905 | |
| 4906 | #else |
| 4907 | |
| 4908 | ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t)); |
| 4909 | |
| 4910 | #endif |
| 4911 | |
| 4912 | alloc_counts[(int) alloc_type_vlinks].total_alloc++; |
| 4913 | *ptr = initial_vlinks; |
| 4914 | return ptr; |
| 4915 | } |
| 4916 | \f |
| 4917 | /* Allocate string hash buckets. */ |
| 4918 | |
| 4919 | static shash_t * |
| 4920 | allocate_shash (void) |
| 4921 | { |
| 4922 | register shash_t *ptr; |
| 4923 | static shash_t initial_shash; |
| 4924 | |
| 4925 | #ifndef MALLOC_CHECK |
| 4926 | |
| 4927 | register int unallocated = alloc_counts[(int) alloc_type_shash].unallocated; |
| 4928 | register page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page; |
| 4929 | |
| 4930 | if (unallocated == 0) |
| 4931 | { |
| 4932 | unallocated = PAGE_SIZE / sizeof (shash_t); |
| 4933 | alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page (); |
| 4934 | alloc_counts[(int) alloc_type_shash].total_pages++; |
| 4935 | } |
| 4936 | |
| 4937 | ptr = &cur_page->shash[--unallocated]; |
| 4938 | alloc_counts[(int) alloc_type_shash].unallocated = unallocated; |
| 4939 | |
| 4940 | #else |
| 4941 | |
| 4942 | ptr = (shash_t *) xmalloc (sizeof (shash_t)); |
| 4943 | |
| 4944 | #endif |
| 4945 | |
| 4946 | alloc_counts[(int) alloc_type_shash].total_alloc++; |
| 4947 | *ptr = initial_shash; |
| 4948 | return ptr; |
| 4949 | } |
| 4950 | \f |
| 4951 | /* Allocate type hash buckets. */ |
| 4952 | |
| 4953 | static thash_t * |
| 4954 | allocate_thash (void) |
| 4955 | { |
| 4956 | register thash_t *ptr; |
| 4957 | static thash_t initial_thash; |
| 4958 | |
| 4959 | #ifndef MALLOC_CHECK |
| 4960 | |
| 4961 | register int unallocated = alloc_counts[(int) alloc_type_thash].unallocated; |
| 4962 | register page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page; |
| 4963 | |
| 4964 | if (unallocated == 0) |
| 4965 | { |
| 4966 | unallocated = PAGE_SIZE / sizeof (thash_t); |
| 4967 | alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page (); |
| 4968 | alloc_counts[(int) alloc_type_thash].total_pages++; |
| 4969 | } |
| 4970 | |
| 4971 | ptr = &cur_page->thash[--unallocated]; |
| 4972 | alloc_counts[(int) alloc_type_thash].unallocated = unallocated; |
| 4973 | |
| 4974 | #else |
| 4975 | |
| 4976 | ptr = (thash_t *) xmalloc (sizeof (thash_t)); |
| 4977 | |
| 4978 | #endif |
| 4979 | |
| 4980 | alloc_counts[(int) alloc_type_thash].total_alloc++; |
| 4981 | *ptr = initial_thash; |
| 4982 | return ptr; |
| 4983 | } |
| 4984 | \f |
| 4985 | /* Allocate structure, union, or enum tag information. */ |
| 4986 | |
| 4987 | static tag_t * |
| 4988 | allocate_tag (void) |
| 4989 | { |
| 4990 | register tag_t *ptr; |
| 4991 | static tag_t initial_tag; |
| 4992 | |
| 4993 | #ifndef MALLOC_CHECK |
| 4994 | |
| 4995 | ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag; |
| 4996 | if (ptr != (tag_t *) NULL) |
| 4997 | alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free; |
| 4998 | else |
| 4999 | { |
| 5000 | register int unallocated = alloc_counts[(int) alloc_type_tag].unallocated; |
| 5001 | register page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page; |
| 5002 | |
| 5003 | if (unallocated == 0) |
| 5004 | { |
| 5005 | unallocated = PAGE_SIZE / sizeof (tag_t); |
| 5006 | alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page (); |
| 5007 | alloc_counts[(int) alloc_type_tag].total_pages++; |
| 5008 | } |
| 5009 | |
| 5010 | ptr = &cur_page->tag[--unallocated]; |
| 5011 | alloc_counts[(int) alloc_type_tag].unallocated = unallocated; |
| 5012 | } |
| 5013 | |
| 5014 | #else |
| 5015 | |
| 5016 | ptr = (tag_t *) xmalloc (sizeof (tag_t)); |
| 5017 | |
| 5018 | #endif |
| 5019 | |
| 5020 | alloc_counts[(int) alloc_type_tag].total_alloc++; |
| 5021 | *ptr = initial_tag; |
| 5022 | return ptr; |
| 5023 | } |
| 5024 | |
| 5025 | /* Free scoping information. */ |
| 5026 | |
| 5027 | static void |
| 5028 | free_tag (tag_t *ptr) |
| 5029 | { |
| 5030 | alloc_counts[(int) alloc_type_tag].total_free++; |
| 5031 | |
| 5032 | #ifndef MALLOC_CHECK |
| 5033 | ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag; |
| 5034 | alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr; |
| 5035 | #else |
| 5036 | free ((PTR_T) ptr); |
| 5037 | #endif |
| 5038 | } |
| 5039 | \f |
| 5040 | /* Allocate forward reference to a yet unknown tag. */ |
| 5041 | |
| 5042 | static forward_t * |
| 5043 | allocate_forward (void) |
| 5044 | { |
| 5045 | register forward_t *ptr; |
| 5046 | static forward_t initial_forward; |
| 5047 | |
| 5048 | #ifndef MALLOC_CHECK |
| 5049 | |
| 5050 | register int unallocated = alloc_counts[(int) alloc_type_forward].unallocated; |
| 5051 | register page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page; |
| 5052 | |
| 5053 | if (unallocated == 0) |
| 5054 | { |
| 5055 | unallocated = PAGE_SIZE / sizeof (forward_t); |
| 5056 | alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page (); |
| 5057 | alloc_counts[(int) alloc_type_forward].total_pages++; |
| 5058 | } |
| 5059 | |
| 5060 | ptr = &cur_page->forward[--unallocated]; |
| 5061 | alloc_counts[(int) alloc_type_forward].unallocated = unallocated; |
| 5062 | |
| 5063 | #else |
| 5064 | |
| 5065 | ptr = (forward_t *) xmalloc (sizeof (forward_t)); |
| 5066 | |
| 5067 | #endif |
| 5068 | |
| 5069 | alloc_counts[(int) alloc_type_forward].total_alloc++; |
| 5070 | *ptr = initial_forward; |
| 5071 | return ptr; |
| 5072 | } |
| 5073 | \f |
| 5074 | /* Allocate head of type hash list. */ |
| 5075 | |
| 5076 | static thead_t * |
| 5077 | allocate_thead (void) |
| 5078 | { |
| 5079 | register thead_t *ptr; |
| 5080 | static thead_t initial_thead; |
| 5081 | |
| 5082 | #ifndef MALLOC_CHECK |
| 5083 | |
| 5084 | ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead; |
| 5085 | if (ptr != (thead_t *) NULL) |
| 5086 | alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free; |
| 5087 | else |
| 5088 | { |
| 5089 | register int unallocated = alloc_counts[(int) alloc_type_thead].unallocated; |
| 5090 | register page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page; |
| 5091 | |
| 5092 | if (unallocated == 0) |
| 5093 | { |
| 5094 | unallocated = PAGE_SIZE / sizeof (thead_t); |
| 5095 | alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page (); |
| 5096 | alloc_counts[(int) alloc_type_thead].total_pages++; |
| 5097 | } |
| 5098 | |
| 5099 | ptr = &cur_page->thead[--unallocated]; |
| 5100 | alloc_counts[(int) alloc_type_thead].unallocated = unallocated; |
| 5101 | } |
| 5102 | |
| 5103 | #else |
| 5104 | |
| 5105 | ptr = (thead_t *) xmalloc (sizeof (thead_t)); |
| 5106 | |
| 5107 | #endif |
| 5108 | |
| 5109 | alloc_counts[(int) alloc_type_thead].total_alloc++; |
| 5110 | *ptr = initial_thead; |
| 5111 | return ptr; |
| 5112 | } |
| 5113 | |
| 5114 | /* Free scoping information. */ |
| 5115 | |
| 5116 | static void |
| 5117 | free_thead (thead_t *ptr) |
| 5118 | { |
| 5119 | alloc_counts[(int) alloc_type_thead].total_free++; |
| 5120 | |
| 5121 | #ifndef MALLOC_CHECK |
| 5122 | ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead; |
| 5123 | alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr; |
| 5124 | #else |
| 5125 | free ((PTR_T) ptr); |
| 5126 | #endif |
| 5127 | } |
| 5128 | \f |
| 5129 | static lineno_list_t * |
| 5130 | allocate_lineno_list (void) |
| 5131 | { |
| 5132 | register lineno_list_t *ptr; |
| 5133 | static lineno_list_t initial_lineno_list; |
| 5134 | |
| 5135 | #ifndef MALLOC_CHECK |
| 5136 | |
| 5137 | register int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated; |
| 5138 | register page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page; |
| 5139 | |
| 5140 | if (unallocated == 0) |
| 5141 | { |
| 5142 | unallocated = PAGE_SIZE / sizeof (lineno_list_t); |
| 5143 | alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page (); |
| 5144 | alloc_counts[(int) alloc_type_lineno].total_pages++; |
| 5145 | } |
| 5146 | |
| 5147 | ptr = &cur_page->lineno[--unallocated]; |
| 5148 | alloc_counts[(int) alloc_type_lineno].unallocated = unallocated; |
| 5149 | |
| 5150 | #else |
| 5151 | |
| 5152 | ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t)); |
| 5153 | |
| 5154 | #endif |
| 5155 | |
| 5156 | alloc_counts[(int) alloc_type_lineno].total_alloc++; |
| 5157 | *ptr = initial_lineno_list; |
| 5158 | return ptr; |
| 5159 | } |
| 5160 | |
| 5161 | void |
| 5162 | ecoff_set_gp_prolog_size (int sz) |
| 5163 | { |
| 5164 | if (cur_proc_ptr == 0) |
| 5165 | return; |
| 5166 | |
| 5167 | cur_proc_ptr->pdr.gp_prologue = sz; |
| 5168 | if (cur_proc_ptr->pdr.gp_prologue != sz) |
| 5169 | { |
| 5170 | as_warn (_("GP prologue size exceeds field size, using 0 instead")); |
| 5171 | cur_proc_ptr->pdr.gp_prologue = 0; |
| 5172 | } |
| 5173 | |
| 5174 | cur_proc_ptr->pdr.gp_used = 1; |
| 5175 | } |
| 5176 | |
| 5177 | int |
| 5178 | ecoff_no_current_file (void) |
| 5179 | { |
| 5180 | return cur_file_ptr == (efdr_t *) NULL; |
| 5181 | } |
| 5182 | |
| 5183 | void |
| 5184 | ecoff_generate_asm_lineno (void) |
| 5185 | { |
| 5186 | unsigned int lineno; |
| 5187 | char *filename; |
| 5188 | lineno_list_t *list; |
| 5189 | |
| 5190 | as_where (&filename, &lineno); |
| 5191 | |
| 5192 | if (current_stabs_filename == (char *) NULL |
| 5193 | || strcmp (current_stabs_filename, filename)) |
| 5194 | add_file (filename, 0, 1); |
| 5195 | |
| 5196 | list = allocate_lineno_list (); |
| 5197 | |
| 5198 | list->next = (lineno_list_t *) NULL; |
| 5199 | list->file = cur_file_ptr; |
| 5200 | list->proc = cur_proc_ptr; |
| 5201 | list->frag = frag_now; |
| 5202 | list->paddr = frag_now_fix (); |
| 5203 | list->lineno = lineno; |
| 5204 | |
| 5205 | /* We don't want to merge files which have line numbers. */ |
| 5206 | cur_file_ptr->fdr.fMerge = 0; |
| 5207 | |
| 5208 | /* A .loc directive will sometimes appear before a .ent directive, |
| 5209 | which means that cur_proc_ptr will be NULL here. Arrange to |
| 5210 | patch this up. */ |
| 5211 | if (cur_proc_ptr == (proc_t *) NULL) |
| 5212 | { |
| 5213 | lineno_list_t **pl; |
| 5214 | |
| 5215 | pl = &noproc_lineno; |
| 5216 | while (*pl != (lineno_list_t *) NULL) |
| 5217 | pl = &(*pl)->next; |
| 5218 | *pl = list; |
| 5219 | } |
| 5220 | else |
| 5221 | { |
| 5222 | last_lineno = list; |
| 5223 | *last_lineno_ptr = list; |
| 5224 | last_lineno_ptr = &list->next; |
| 5225 | } |
| 5226 | } |
| 5227 | |
| 5228 | #else |
| 5229 | |
| 5230 | void |
| 5231 | ecoff_generate_asm_lineno (void) |
| 5232 | { |
| 5233 | } |
| 5234 | |
| 5235 | #endif /* ECOFF_DEBUGGING */ |