1 /* ECOFF debugging support.
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
6 good deal of it comes directly from mips-tfile.c, by Michael
9 This file is part of GAS.
11 GAS is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
16 GAS is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with GAS; see the file COPYING. If not, write to the Free
23 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 /* This file is compiled conditionally for those targets which use
29 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
34 #ifdef ECOFF_DEBUGGING
36 #include "coff/internal.h"
37 #include "coff/symconst.h"
38 #include "aout/stab_gnu.h"
42 /* Why isn't this in coff/sym.h? */
43 #define ST_RFDESCAPE 0xfff
45 /* This file constructs the information used by the ECOFF debugging
46 format. It just builds a large block of data.
48 We support both ECOFF style debugging and stabs debugging (the
49 stabs symbols are encapsulated in ECOFF symbols). This should let
50 us handle anything the compiler might throw at us. */
52 /* Here is a brief description of the MIPS ECOFF symbol table, by
53 Michael Meissner. The MIPS symbol table has the following pieces:
59 +-- Dense number table
67 +-- Relative file descriptors
79 The symbolic header points to each of the other tables, and also
80 contains the number of entries. It also contains a magic number
81 and MIPS compiler version number, such as 2.0.
83 The auxiliary table is a series of 32 bit integers, that are
84 referenced as needed from the local symbol table. Unlike standard
85 COFF, the aux. information does not follow the symbol that uses
86 it, but rather is a separate table. In theory, this would allow
87 the MIPS compilers to collapse duplicate aux. entries, but I've not
88 noticed this happening with the 1.31 compiler suite. The different
89 types of aux. entries are:
91 1) dnLow: Low bound on array dimension.
93 2) dnHigh: High bound on array dimension.
95 3) isym: Index to the local symbol which is the start of the
96 function for the end of function first aux. entry.
98 4) width: Width of structures and bitfields.
100 5) count: Count of ranges for variant part.
102 6) rndx: A relative index into the symbol table. The relative
103 index field has two parts: rfd which is a pointer into the
104 relative file index table or ST_RFDESCAPE which says the next
105 aux. entry is the file number, and index: which is the pointer
106 into the local symbol within a given file table. This is for
107 things like references to types defined in another file.
109 7) Type information: This is like the COFF type bits, except it
110 is 32 bits instead of 16; they still have room to add new
111 basic types; and they can handle more than 6 levels of array,
112 pointer, function, etc. Each type information field contains
113 the following structure members:
115 a) fBitfield: a bit that says this is a bitfield, and the
116 size in bits follows as the next aux. entry.
118 b) continued: a bit that says the next aux. entry is a
119 continuation of the current type information (in case
120 there are more than 6 levels of array/ptr/function).
122 c) bt: an integer containing the base type before adding
123 array, pointer, function, etc. qualifiers. The
124 current base types that I have documentation for are:
127 btAdr -- address - integer same size as ptr
129 btUChar -- unsigned character
131 btUShort -- unsigned short
133 btUInt -- unsigned int
135 btULong -- unsigned long
136 btFloat -- float (real)
137 btDouble -- Double (real)
138 btStruct -- Structure (Record)
139 btUnion -- Union (variant)
141 btTypedef -- defined via a typedef isymRef
142 btRange -- subrange of int
144 btComplex -- fortran complex
145 btDComplex -- fortran double complex
146 btIndirect -- forward or unnamed typedef
147 btFixedDec -- Fixed Decimal
148 btFloatDec -- Float Decimal
149 btString -- Varying Length Character String
150 btBit -- Aligned Bit String
152 btVoid -- Void (MIPS cc revision >= 2.00)
154 d) tq0 - tq5: type qualifier fields as needed. The
155 current type qualifier fields I have documentation for
158 tqNil -- no more qualifiers
162 tqFar -- 8086 far pointers
165 The dense number table is used in the front ends, and disappears by
166 the time the .o is created.
168 With the 1.31 compiler suite, the optimization symbols don't seem
169 to be used as far as I can tell.
171 The linker is the first entity that creates the relative file
172 descriptor table, and I believe it is used so that the individual
173 file table pointers don't have to be rewritten when the objects are
174 merged together into the program file.
176 Unlike COFF, the basic symbol & string tables are split into
177 external and local symbols/strings. The relocation information
178 only goes off of the external symbol table, and the debug
179 information only goes off of the internal symbol table. The
180 external symbols can have links to an appropriate file index and
181 symbol within the file to give it the appropriate type information.
182 Because of this, the external symbols are actually larger than the
183 internal symbols (to contain the link information), and contain the
184 local symbol structure as a member, though this member is not the
185 first member of the external symbol structure (!). I suspect this
186 split is to make strip easier to deal with.
188 Each file table has offsets for where the line numbers, local
189 strings, local symbols, and procedure table starts from within the
190 global tables, and the indexs are reset to 0 for each of those
193 The procedure table contains the binary equivalents of the .ent
194 (start of the function address), .frame (what register is the
195 virtual frame pointer, constant offset from the register to obtain
196 the VFP, and what register holds the return address), .mask/.fmask
197 (bitmask of saved registers, and where the first register is stored
198 relative to the VFP) assembler directives. It also contains the
199 low and high bounds of the line numbers if debugging is turned on.
201 The line number table is a compressed form of the normal COFF line
202 table. Each line number entry is either 1 or 3 bytes long, and
203 contains a signed delta from the previous line, and an unsigned
204 count of the number of instructions this statement takes.
206 The local symbol table contains the following fields:
208 1) iss: index to the local string table giving the name of the
211 2) value: value of the symbol (address, register number, etc.).
213 3) st: symbol type. The current symbol types are:
215 stNil -- Nuthin' special
216 stGlobal -- external symbol
218 stParam -- procedure argument
219 stLocal -- local variable
221 stProc -- External Procedure
222 stBlock -- beginning of block
223 stEnd -- end (of anything)
224 stMember -- member (of anything)
225 stTypedef -- type definition
227 stRegReloc -- register relocation
228 stForward -- forwarding address
229 stStaticProc -- Static procedure
232 4) sc: storage class. The current storage classes are:
234 scText -- text symbol
235 scData -- initialized data symbol
236 scBss -- un-initialized data symbol
237 scRegister -- value of symbol is register number
238 scAbs -- value of symbol is absolute
239 scUndefined -- who knows?
240 scCdbLocal -- variable's value is IN se->va.??
241 scBits -- this is a bit field
242 scCdbSystem -- value is IN debugger's address space
243 scRegImage -- register value saved on stack
244 scInfo -- symbol contains debugger information
245 scUserStruct -- addr in struct user for current process
246 scSData -- load time only small data
247 scSBss -- load time only small common
248 scRData -- load time only read only data
249 scVar -- Var parameter (fortranpascal)
250 scCommon -- common variable
251 scSCommon -- small common
252 scVarRegister -- Var parameter in a register
253 scVariant -- Variant record
254 scSUndefined -- small undefined(external) data
255 scInit -- .init section symbol
257 5) index: pointer to a local symbol or aux. entry.
259 For the following program:
264 printf("Hello World!\n");
268 Mips-tdump produces the following information:
273 timestamp 645311799, Wed Jun 13 17:16:39 1990
274 symbolic header offset 284
275 symbolic header size 96
279 Symbolic header, magic number = 0x7009, vstamp = 1.31:
281 Info Offset Number Bytes
282 ==== ====== ====== =====
284 Line numbers 380 4 4 [13]
286 Procedures Tables 384 1 52
287 Local Symbols 436 16 192
288 Optimization Symbols 0 0 0
289 Auxiliary Symbols 628 39 156
290 Local Strings 784 80 80
291 External Strings 864 144 144
292 File Tables 1008 2 144
294 External Symbols 1152 20 320
298 Name index = 1 Readin = No
299 Merge = No Endian = LITTLE
300 Debug level = G2 Language = C
303 Info Start Number Size Offset
304 ==== ===== ====== ==== ======
305 Local strings 0 15 15 784
306 Local symbols 0 6 72 436
307 Line numbers 0 13 13 380
308 Optimization symbols 0 0 0 0
309 Procedures 0 1 52 384
310 Auxiliary symbols 0 14 56 628
311 Relative Files 0 0 0 0
313 There are 6 local symbols, starting at 436
315 Symbol# 0: "hello2.c"
318 Storage class = Text Index = 6
319 Symbol type = File Value = 0
325 Storage class = Text Index = 12
326 Symbol type = Proc Value = 0
331 Storage class = Text Index = 4
332 Symbol type = Block Value = 8
337 Storage class = Text Index = 2
338 Symbol type = End Value = 28
343 Storage class = Text Index = 1
344 Symbol type = End Value = 52
346 Symbol# 5: "hello2.c"
349 Storage class = Text Index = 0
350 Symbol type = End Value = 0
352 There are 14 auxiliary table entries, starting at 628.
354 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
355 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
356 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
357 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
358 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
359 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
360 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
361 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
362 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
363 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
364 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
365 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
366 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
367 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
369 There are 1 procedure descriptor entries, starting at 0.
371 Procedure descriptor 0:
372 Name index = 10 Name = "main"
373 .mask 0x80000000,-4 .fmask 0x00000000,0
375 Opt. start = -1 Symbols start = 1
376 First line # = 3 Last line # = 6
377 Line Offset = 0 Address = 0x00000000
379 There are 4 bytes holding line numbers, starting at 380.
380 Line 3, delta 0, count 2
381 Line 4, delta 1, count 3
382 Line 5, delta 1, count 2
383 Line 6, delta 1, count 6
385 File #1, "/usr/include/stdio.h"
387 Name index = 1 Readin = No
388 Merge = Yes Endian = LITTLE
389 Debug level = G2 Language = C
392 Info Start Number Size Offset
393 ==== ===== ====== ==== ======
394 Local strings 15 65 65 799
395 Local symbols 6 10 120 508
396 Line numbers 0 0 0 380
397 Optimization symbols 0 0 0 0
399 Auxiliary symbols 14 25 100 684
400 Relative Files 0 0 0 0
402 There are 10 local symbols, starting at 442
404 Symbol# 0: "/usr/include/stdio.h"
407 Storage class = Text Index = 10
408 Symbol type = File Value = 0
413 Storage class = Info Index = 9
414 Symbol type = Block Value = 20
419 Storage class = Info Index = 4
420 Symbol type = Member Value = 0
425 Storage class = Info Index = 15
426 Symbol type = Member Value = 32
431 Storage class = Info Index = 16
432 Symbol type = Member Value = 64
437 Storage class = Info Index = 4
438 Symbol type = Member Value = 96
443 Storage class = Info Index = 3
444 Symbol type = Member Value = 128
449 Storage class = Info Index = 2
450 Symbol type = Member Value = 144
455 Storage class = Info Index = 1
456 Symbol type = End Value = 0
458 Symbol# 9: "/usr/include/stdio.h"
461 Storage class = Text Index = 0
462 Symbol type = End Value = 0
464 There are 25 auxiliary table entries, starting at 642.
466 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
467 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
468 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
470 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
471 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
472 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
473 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
474 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
475 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
476 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
477 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
478 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492 There are 0 procedure descriptor entries, starting at 1.
494 There are 20 external symbols, starting at 1152
497 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
498 String index = 0 Ifd = 1
499 Storage class = Nil Index = 17
500 Symbol type = Global Value = 60
503 String index = 5 Ifd = 1
504 Storage class = Nil Index = 1048575
505 Symbol type = Proc Value = 0
508 String index = 11 Ifd = 1
509 Storage class = Nil Index = 1048575
510 Symbol type = Proc Value = 0
513 String index = 18 Ifd = 1
514 Storage class = Nil Index = 1048575
515 Symbol type = Proc Value = 0
518 String index = 26 Ifd = 1
519 Storage class = Nil Index = 1048575
520 Symbol type = Proc Value = 0
523 String index = 32 Ifd = 1
524 Storage class = Nil Index = 1048575
525 Symbol type = Proc Value = 0
528 String index = 40 Ifd = 1
529 Storage class = Nil Index = 1048575
530 Symbol type = Proc Value = 0
533 String index = 46 Ifd = 1
534 Storage class = Nil Index = 1048575
535 Symbol type = Proc Value = 0
538 String index = 53 Ifd = 1
539 Storage class = Nil Index = 1048575
540 Symbol type = Proc Value = 0
542 Symbol# 9: "setbuffer"
543 String index = 60 Ifd = 1
544 Storage class = Nil Index = 1048575
545 Symbol type = Proc Value = 0
547 Symbol# 10: "setlinebuf"
548 String index = 70 Ifd = 1
549 Storage class = Nil Index = 1048575
550 Symbol type = Proc Value = 0
553 String index = 81 Ifd = 1
554 Storage class = Nil Index = 1048575
555 Symbol type = Proc Value = 0
558 String index = 87 Ifd = 1
559 Storage class = Nil Index = 1048575
560 Symbol type = Proc Value = 0
562 Symbol# 13: "ctermid"
563 String index = 92 Ifd = 1
564 Storage class = Nil Index = 1048575
565 Symbol type = Proc Value = 0
567 Symbol# 14: "cuserid"
568 String index = 100 Ifd = 1
569 Storage class = Nil Index = 1048575
570 Symbol type = Proc Value = 0
572 Symbol# 15: "tempnam"
573 String index = 108 Ifd = 1
574 Storage class = Nil Index = 1048575
575 Symbol type = Proc Value = 0
578 String index = 116 Ifd = 1
579 Storage class = Nil Index = 1048575
580 Symbol type = Proc Value = 0
582 Symbol# 17: "sprintf"
583 String index = 123 Ifd = 1
584 Storage class = Nil Index = 1048575
585 Symbol type = Proc Value = 0
589 String index = 131 Ifd = 0
590 Storage class = Text Index = 1
591 Symbol type = Proc Value = 0
594 String index = 136 Ifd = 0
595 Storage class = Undefined Index = 1048575
596 Symbol type = Proc Value = 0
598 The following auxiliary table entries were unused:
602 #3 16 0x00000010 short
604 #5 32 0x00000020 long
605 #6 40 0x00000028 float
606 #7 44 0x0000002c double
607 #8 12 0x0000000c unsigned char
608 #9 20 0x00000014 unsigned short
609 #10 28 0x0000001c unsigned int
610 #11 36 0x00000024 unsigned long
611 #14 0 0x00000000 void
612 #15 24 0x00000018 int
613 #19 32 0x00000020 long
614 #20 40 0x00000028 float
615 #21 44 0x0000002c double
616 #22 12 0x0000000c unsigned char
617 #23 20 0x00000014 unsigned short
618 #24 28 0x0000001c unsigned int
619 #25 36 0x00000024 unsigned long
620 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
623 /* Redefinition of of storage classes as an enumeration for better
627 sc_Nil = scNil, /* no storage class */
628 sc_Text = scText, /* text symbol */
629 sc_Data = scData, /* initialized data symbol */
630 sc_Bss = scBss, /* un-initialized data symbol */
631 sc_Register = scRegister, /* value of symbol is register number */
632 sc_Abs = scAbs, /* value of symbol is absolute */
633 sc_Undefined = scUndefined, /* who knows? */
634 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
635 sc_Bits = scBits, /* this is a bit field */
636 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
637 sc_RegImage = scRegImage, /* register value saved on stack */
638 sc_Info = scInfo, /* symbol contains debugger information */
639 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
640 sc_SData = scSData, /* load time only small data */
641 sc_SBss = scSBss, /* load time only small common */
642 sc_RData = scRData, /* load time only read only data */
643 sc_Var = scVar, /* Var parameter (fortran,pascal) */
644 sc_Common = scCommon, /* common variable */
645 sc_SCommon = scSCommon, /* small common */
646 sc_VarRegister = scVarRegister, /* Var parameter in a register */
647 sc_Variant = scVariant, /* Variant record */
648 sc_SUndefined = scSUndefined, /* small undefined(external) data */
649 sc_Init = scInit, /* .init section symbol */
650 sc_Max = scMax /* Max storage class+1 */
653 /* Redefinition of symbol type. */
656 st_Nil = stNil, /* Nuthin' special */
657 st_Global = stGlobal, /* external symbol */
658 st_Static = stStatic, /* static */
659 st_Param = stParam, /* procedure argument */
660 st_Local = stLocal, /* local variable */
661 st_Label = stLabel, /* label */
662 st_Proc = stProc, /* " " Procedure */
663 st_Block = stBlock, /* beginning of block */
664 st_End = stEnd, /* end (of anything) */
665 st_Member = stMember, /* member (of anything - struct/union/enum */
666 st_Typedef = stTypedef, /* type definition */
667 st_File = stFile, /* file name */
668 st_RegReloc = stRegReloc, /* register relocation */
669 st_Forward = stForward, /* forwarding address */
670 st_StaticProc = stStaticProc, /* load time only static procs */
671 st_Constant = stConstant, /* const */
672 st_Str = stStr, /* string */
673 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
674 st_Expr = stExpr, /* 2+2 vs. 4 */
675 st_Type = stType, /* post-coercion SER */
676 st_Max = stMax /* max type+1 */
679 /* Redefinition of type qualifiers. */
682 tq_Nil = tqNil, /* bt is what you see */
683 tq_Ptr = tqPtr, /* pointer */
684 tq_Proc = tqProc, /* procedure */
685 tq_Array = tqArray, /* duh */
686 tq_Far = tqFar, /* longer addressing - 8086/8 land */
687 tq_Vol = tqVol, /* volatile */
688 tq_Max = tqMax /* Max type qualifier+1 */
691 /* Redefinition of basic types. */
694 bt_Nil = btNil, /* undefined */
695 bt_Adr = btAdr, /* address - integer same size as pointer */
696 bt_Char = btChar, /* character */
697 bt_UChar = btUChar, /* unsigned character */
698 bt_Short = btShort, /* short */
699 bt_UShort = btUShort, /* unsigned short */
700 bt_Int = btInt, /* int */
701 bt_UInt = btUInt, /* unsigned int */
702 bt_Long = btLong, /* long */
703 bt_ULong = btULong, /* unsigned long */
704 bt_Float = btFloat, /* float (real) */
705 bt_Double = btDouble, /* Double (real) */
706 bt_Struct = btStruct, /* Structure (Record) */
707 bt_Union = btUnion, /* Union (variant) */
708 bt_Enum = btEnum, /* Enumerated */
709 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
710 bt_Range = btRange, /* subrange of int */
711 bt_Set = btSet, /* pascal sets */
712 bt_Complex = btComplex, /* fortran complex */
713 bt_DComplex = btDComplex, /* fortran double complex */
714 bt_Indirect = btIndirect, /* forward or unnamed typedef */
715 bt_FixedDec = btFixedDec, /* Fixed Decimal */
716 bt_FloatDec = btFloatDec, /* Float Decimal */
717 bt_String = btString, /* Varying Length Character String */
718 bt_Bit = btBit, /* Aligned Bit String */
719 bt_Picture = btPicture, /* Picture */
720 bt_Void = btVoid, /* Void */
721 bt_Max = btMax /* Max basic type+1 */
726 /* States for whether to hash type or not. */
727 typedef enum hash_state {
728 hash_no = 0, /* Don't hash type */
729 hash_yes = 1, /* OK to hash type, or use previous hash */
730 hash_record = 2 /* OK to record hash, but don't use prev. */
733 /* Types of different sized allocation requests. */
735 alloc_type_none, /* dummy value */
736 alloc_type_scope, /* nested scopes linked list */
737 alloc_type_vlinks, /* glue linking pages in varray */
738 alloc_type_shash, /* string hash element */
739 alloc_type_thash, /* type hash element */
740 alloc_type_tag, /* struct/union/tag element */
741 alloc_type_forward, /* element to hold unknown tag */
742 alloc_type_thead, /* head of type hash list */
743 alloc_type_varray, /* general varray allocation */
744 alloc_type_lineno, /* line number list */
745 alloc_type_last /* last+1 element for array bounds */
748 /* Types of auxiliary type information. */
750 aux_tir, /* TIR type information */
751 aux_rndx, /* relative index into symbol table */
752 aux_dnLow, /* low dimension */
753 aux_dnHigh, /* high dimension */
754 aux_isym, /* symbol table index (end of proc) */
755 aux_iss, /* index into string space (not used) */
756 aux_width, /* width for non-default sized struc fields */
757 aux_count /* count of ranges for variant arm */
760 /* Structures to provide n-number of virtual arrays, each of which can
761 grow linearly, and which are written in the object file as
762 sequential pages. On systems with a BSD malloc, the
763 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
764 malloc adds it's overhead, and rounds up to the next power of 2.
765 Pages are linked together via a linked list.
767 If PAGE_SIZE is > 4096, the string length in the shash_t structure
768 can't be represented (assuming there are strings > 4096 bytes). */
770 /* FIXME: Yes, there can be such strings while emitting C++ class debug
771 info. Templates are the offender here, the test case in question
772 having a mangled class name of
774 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
775 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
777 Repeat that a couple dozen times while listing the class members and
778 you've got strings over 4k. Hack around this for now by increasing
779 the page size. A proper solution would abandon this structure scheme
780 certainly for very large strings, and possibly entirely. */
783 #define PAGE_SIZE (8*1024) /* size of varray pages */
786 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
788 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
789 #define MAX_CLUSTER_PAGES 63
792 /* Linked list connecting separate page allocations. */
793 typedef struct vlinks {
794 struct vlinks *prev; /* previous set of pages */
795 struct vlinks *next; /* next set of pages */
796 union page *datum; /* start of page */
797 unsigned long start_index; /* starting index # of page */
800 /* Virtual array header. */
801 typedef struct varray {
802 vlinks_t *first; /* first page link */
803 vlinks_t *last; /* last page link */
804 unsigned long num_allocated; /* # objects allocated */
805 unsigned short object_size; /* size in bytes of each object */
806 unsigned short objects_per_page; /* # objects that can fit on a page */
807 unsigned short objects_last_page; /* # objects allocated on last page */
811 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
813 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
816 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
817 (vlinks_t *)0, /* first */ \
818 (vlinks_t *)0, /* last */ \
819 0, /* num_allocated */ \
820 sizeof (type), /* object_size */ \
821 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
822 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
825 /* Master type for indexes within the symbol table. */
826 typedef unsigned long symint_t;
828 /* Linked list support for nested scopes (file, block, structure, etc.). */
829 typedef struct scope {
830 struct scope *prev; /* previous scope level */
831 struct scope *free; /* free list pointer */
832 struct localsym *lsym; /* pointer to local symbol node */
833 st_t type; /* type of the node */
836 /* For a local symbol we store a gas symbol as well as the debugging
837 information we generate. The gas symbol will be NULL if this is
838 only a debugging symbol. */
839 typedef struct localsym {
840 const char *name; /* symbol name */
841 symbolS *as_sym; /* symbol as seen by gas */
842 bfd_vma addend; /* addend to as_sym value */
843 struct efdr *file_ptr; /* file pointer */
844 struct ecoff_proc *proc_ptr; /* proc pointer */
845 struct localsym *begin_ptr; /* symbol at start of block */
846 struct ecoff_aux *index_ptr; /* index value to be filled in */
847 struct forward *forward_ref; /* forward references to this symbol */
848 long sym_index; /* final symbol index */
849 EXTR ecoff_sym; /* ECOFF debugging symbol */
852 /* For aux information we keep the type and the data. */
853 typedef struct ecoff_aux {
854 enum aux_type type; /* aux type */
855 AUXU data; /* aux data */
858 /* For a procedure we store the gas symbol as well as the PDR
859 debugging information. */
860 typedef struct ecoff_proc {
861 localsym_t *sym; /* associated symbol */
862 PDR pdr; /* ECOFF debugging info */
865 /* Number of proc_t structures allocated. */
866 static unsigned long proc_cnt;
868 /* Forward reference list for tags referenced, but not yet defined. */
869 typedef struct forward {
870 struct forward *next; /* next forward reference */
871 struct forward *free; /* free list pointer */
872 aux_t *ifd_ptr; /* pointer to store file index */
873 aux_t *index_ptr; /* pointer to store symbol index */
876 /* Linked list support for tags. The first tag in the list is always
877 the current tag for that block. */
879 struct tag *free; /* free list pointer */
880 struct shash *hash_ptr; /* pointer to the hash table head */
881 struct tag *same_name; /* tag with same name in outer scope */
882 struct tag *same_block; /* next tag defined in the same block. */
883 struct forward *forward_ref; /* list of forward references */
884 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
885 symint_t ifd; /* file # tag defined in */
886 localsym_t *sym; /* file's local symbols */
889 /* Head of a block's linked list of tags. */
890 typedef struct thead {
891 struct thead *prev; /* previous block */
892 struct thead *free; /* free list pointer */
893 struct tag *first_tag; /* first tag in block defined */
896 /* Union containing pointers to each the small structures which are freed up. */
897 typedef union small_free {
898 scope_t *f_scope; /* scope structure */
899 thead_t *f_thead; /* tag head structure */
900 tag_t *f_tag; /* tag element structure */
901 forward_t *f_forward; /* forward tag reference */
904 /* String hash table entry. */
906 typedef struct shash {
907 char *string; /* string we are hashing */
908 symint_t indx; /* index within string table */
909 EXTR *esym_ptr; /* global symbol pointer */
910 localsym_t *sym_ptr; /* local symbol pointer */
911 localsym_t *end_ptr; /* symbol pointer to end block */
912 tag_t *tag_ptr; /* tag pointer */
913 proc_t *proc_ptr; /* procedure descriptor pointer */
916 /* Type hash table support. The size of the hash table must fit
917 within a page with the other extended file descriptor information.
918 Because unique types which are hashed are fewer in number than
919 strings, we use a smaller hash value. */
924 #define THASH_SIZE 113
927 typedef struct thash {
928 struct thash *next; /* next hash value */
929 AUXU type; /* type we are hashing */
930 symint_t indx; /* index within string table */
933 /* Extended file descriptor that contains all of the support necessary
934 to add things to each file separately. */
935 typedef struct efdr {
936 FDR fdr; /* File header to be written out */
937 FDR *orig_fdr; /* original file header */
938 char *name; /* filename */
939 int fake; /* whether this is faked .file */
940 symint_t void_type; /* aux. pointer to 'void' type */
941 symint_t int_type; /* aux. pointer to 'int' type */
942 scope_t *cur_scope; /* current nested scopes */
943 symint_t file_index; /* current file number */
944 int nested_scopes; /* # nested scopes */
945 varray_t strings; /* local strings */
946 varray_t symbols; /* local symbols */
947 varray_t procs; /* procedures */
948 varray_t aux_syms; /* auxiliary symbols */
949 struct efdr *next_file; /* next file descriptor */
950 /* string/type hash tables */
951 struct hash_control *str_hash; /* string hash table */
952 thash_t *thash_head[THASH_SIZE];
955 /* Pre-initialized extended file structure. */
956 static const efdr_t init_file = {
957 { /* FDR structure */
958 0, /* adr: memory address of beginning of file */
959 0, /* rss: file name (of source, if known) */
960 0, /* issBase: file's string space */
961 0, /* cbSs: number of bytes in the ss */
962 0, /* isymBase: beginning of symbols */
963 0, /* csym: count file's of symbols */
964 0, /* ilineBase: file's line symbols */
965 0, /* cline: count of file's line symbols */
966 0, /* ioptBase: file's optimization entries */
967 0, /* copt: count of file's optimization entries */
968 0, /* ipdFirst: start of procedures for this file */
969 0, /* cpd: count of procedures for this file */
970 0, /* iauxBase: file's auxiliary entries */
971 0, /* caux: count of file's auxiliary entries */
972 0, /* rfdBase: index into the file indirect table */
973 0, /* crfd: count file indirect entries */
974 langC, /* lang: language for this file */
975 1, /* fMerge: whether this file can be merged */
976 0, /* fReadin: true if read in (not just created) */
977 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
978 GLEVEL_2, /* glevel: level this file was compiled with */
979 0, /* reserved: reserved for future use */
980 0, /* cbLineOffset: byte offset from header for this file ln's */
981 0, /* cbLine: size of lines for this file */
984 (FDR *)0, /* orig_fdr: original file header pointer */
985 (char *)0, /* name: pointer to filename */
986 0, /* fake: whether this is a faked .file */
987 0, /* void_type: ptr to aux node for void type */
988 0, /* int_type: ptr to aux node for int type */
989 (scope_t *)0, /* cur_scope: current scope being processed */
990 0, /* file_index: current file # */
991 0, /* nested_scopes: # nested scopes */
992 INIT_VARRAY (char), /* strings: local string varray */
993 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
994 INIT_VARRAY (proc_t), /* procs: procedure varray */
995 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
997 (struct efdr *)0, /* next_file: next file structure */
999 (struct hash_control *)0, /* str_hash: string hash table */
1000 { 0 }, /* thash_head: type hash table */
1003 static efdr_t *first_file; /* first file descriptor */
1004 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1006 /* Line number information is kept in a list until the assembly is
1008 typedef struct lineno_list {
1009 struct lineno_list *next; /* next element in list */
1010 efdr_t *file; /* file this line is in */
1011 proc_t *proc; /* procedure this line is in */
1012 fragS *frag; /* fragment this line number is in */
1013 unsigned long paddr; /* offset within fragment */
1014 long lineno; /* actual line number */
1017 static lineno_list_t *first_lineno;
1018 static lineno_list_t *last_lineno;
1019 static lineno_list_t **last_lineno_ptr = &first_lineno;
1021 /* Sometimes there will be some .loc statements before a .ent. We
1022 keep them in this list so that we can fill in the procedure pointer
1023 after we see the .ent. */
1024 static lineno_list_t *noproc_lineno;
1026 /* Union of various things that are held in pages. */
1027 typedef union page {
1028 char byte [ PAGE_SIZE ];
1029 unsigned char ubyte [ PAGE_SIZE ];
1030 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1031 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1032 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1033 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1034 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1035 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1036 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1037 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1038 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1039 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1040 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1041 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1042 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1043 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1046 /* Structure holding allocation information for small sized structures. */
1047 typedef struct alloc_info {
1048 char *alloc_name; /* name of this allocation type (must be first) */
1049 page_type *cur_page; /* current page being allocated from */
1050 small_free_t free_list; /* current free list if any */
1051 int unallocated; /* number of elements unallocated on page */
1052 int total_alloc; /* total number of allocations */
1053 int total_free; /* total number of frees */
1054 int total_pages; /* total number of pages allocated */
1057 /* Type information collected together. */
1058 typedef struct type_info {
1059 bt_t basic_type; /* basic type */
1060 int orig_type; /* original COFF-based type */
1061 int num_tq; /* # type qualifiers */
1062 int num_dims; /* # dimensions */
1063 int num_sizes; /* # sizes */
1064 int extra_sizes; /* # extra sizes not tied with dims */
1065 tag_t * tag_ptr; /* tag pointer */
1066 int bitfield; /* symbol is a bitfield */
1067 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1068 symint_t dimensions [N_TQ]; /* dimensions for each array */
1069 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1070 struct/union/enum + bitfield size */
1073 /* Pre-initialized type_info struct. */
1074 static const type_info_t type_info_init = {
1075 bt_Nil, /* basic type */
1076 T_NULL, /* original COFF-based type */
1077 0, /* # type qualifiers */
1078 0, /* # dimensions */
1080 0, /* sizes not tied with dims */
1081 NULL, /* ptr to tag */
1083 { /* type qualifiers */
1111 /* Global hash table for the tags table and global table for file
1114 static varray_t file_desc = INIT_VARRAY (efdr_t);
1116 static struct hash_control *tag_hash;
1118 /* Static types for int and void. Also, remember the last function's
1119 type (which is set up when we encounter the declaration for the
1120 function, and used when the end block for the function is emitted. */
1122 static type_info_t int_type_info;
1123 static type_info_t void_type_info;
1124 static type_info_t last_func_type_info;
1125 static symbolS *last_func_sym_value;
1127 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1128 really should use bt_Void, but this causes the current ecoff GDB to
1129 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1130 2.0) doesn't understand it, even though the compiler generates it.
1131 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1132 suite, but for now go with what works.
1134 It would make sense for the .type and .scl directives to use the
1135 ECOFF numbers directly, rather than using the COFF numbers and
1136 mapping them. Unfortunately, this is historically what mips-tfile
1137 expects, and changing gcc now would be a considerable pain (the
1138 native compiler generates debugging information internally, rather
1139 than via the assembler, so it will never use .type or .scl). */
1141 static const bt_t map_coff_types[] = {
1142 bt_Nil, /* T_NULL */
1144 bt_Char, /* T_CHAR */
1145 bt_Short, /* T_SHORT */
1147 bt_Long, /* T_LONG */
1148 bt_Float, /* T_FLOAT */
1149 bt_Double, /* T_DOUBLE */
1150 bt_Struct, /* T_STRUCT */
1151 bt_Union, /* T_UNION */
1152 bt_Enum, /* T_ENUM */
1153 bt_Enum, /* T_MOE */
1154 bt_UChar, /* T_UCHAR */
1155 bt_UShort, /* T_USHORT */
1156 bt_UInt, /* T_UINT */
1157 bt_ULong /* T_ULONG */
1160 /* Convert COFF storage class to ECOFF storage class. */
1161 static const sc_t map_coff_storage[] = {
1162 sc_Nil, /* 0: C_NULL */
1163 sc_Abs, /* 1: C_AUTO auto var */
1164 sc_Undefined, /* 2: C_EXT external */
1165 sc_Data, /* 3: C_STAT static */
1166 sc_Register, /* 4: C_REG register */
1167 sc_Undefined, /* 5: C_EXTDEF ??? */
1168 sc_Text, /* 6: C_LABEL label */
1169 sc_Text, /* 7: C_ULABEL user label */
1170 sc_Info, /* 8: C_MOS member of struct */
1171 sc_Abs, /* 9: C_ARG argument */
1172 sc_Info, /* 10: C_STRTAG struct tag */
1173 sc_Info, /* 11: C_MOU member of union */
1174 sc_Info, /* 12: C_UNTAG union tag */
1175 sc_Info, /* 13: C_TPDEF typedef */
1176 sc_Data, /* 14: C_USTATIC ??? */
1177 sc_Info, /* 15: C_ENTAG enum tag */
1178 sc_Info, /* 16: C_MOE member of enum */
1179 sc_Register, /* 17: C_REGPARM register parameter */
1180 sc_Bits, /* 18; C_FIELD bitfield */
1262 sc_Text, /* 100: C_BLOCK block start/end */
1263 sc_Text, /* 101: C_FCN function start/end */
1264 sc_Info, /* 102: C_EOS end of struct/union/enum */
1265 sc_Nil, /* 103: C_FILE file start */
1266 sc_Nil, /* 104: C_LINE line number */
1267 sc_Nil, /* 105: C_ALIAS combined type info */
1268 sc_Nil, /* 106: C_HIDDEN ??? */
1271 /* Convert COFF storage class to ECOFF symbol type. */
1272 static const st_t map_coff_sym_type[] = {
1273 st_Nil, /* 0: C_NULL */
1274 st_Local, /* 1: C_AUTO auto var */
1275 st_Global, /* 2: C_EXT external */
1276 st_Static, /* 3: C_STAT static */
1277 st_Local, /* 4: C_REG register */
1278 st_Global, /* 5: C_EXTDEF ??? */
1279 st_Label, /* 6: C_LABEL label */
1280 st_Label, /* 7: C_ULABEL user label */
1281 st_Member, /* 8: C_MOS member of struct */
1282 st_Param, /* 9: C_ARG argument */
1283 st_Block, /* 10: C_STRTAG struct tag */
1284 st_Member, /* 11: C_MOU member of union */
1285 st_Block, /* 12: C_UNTAG union tag */
1286 st_Typedef, /* 13: C_TPDEF typedef */
1287 st_Static, /* 14: C_USTATIC ??? */
1288 st_Block, /* 15: C_ENTAG enum tag */
1289 st_Member, /* 16: C_MOE member of enum */
1290 st_Param, /* 17: C_REGPARM register parameter */
1291 st_Member, /* 18; C_FIELD bitfield */
1373 st_Block, /* 100: C_BLOCK block start/end */
1374 st_Proc, /* 101: C_FCN function start/end */
1375 st_End, /* 102: C_EOS end of struct/union/enum */
1376 st_File, /* 103: C_FILE file start */
1377 st_Nil, /* 104: C_LINE line number */
1378 st_Nil, /* 105: C_ALIAS combined type info */
1379 st_Nil, /* 106: C_HIDDEN ??? */
1382 /* Keep track of different sized allocation requests. */
1383 static alloc_info_t alloc_counts[(int) alloc_type_last];
1385 /* Record whether we have seen any debugging information. */
1386 int ecoff_debugging_seen = 0;
1388 /* Various statics. */
1389 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1390 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1391 static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1392 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1393 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1395 static int debug = 0; /* trace functions */
1397 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1399 static int current_file_idx;
1400 static const char *current_stabs_filename;
1402 /* Pseudo symbol to use when putting stabs into the symbol table. */
1403 #ifndef STABS_SYMBOL
1404 #define STABS_SYMBOL "@stabs"
1407 static char stabs_symbol[] = STABS_SYMBOL;
1409 /* Prototypes for functions defined in this file. */
1411 static void add_varray_page PARAMS ((varray_t *vp));
1412 static symint_t add_string PARAMS ((varray_t *vp,
1413 struct hash_control *hash_tbl,
1415 shash_t **ret_hash));
1416 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1417 sc_t storage, symbolS *sym,
1418 bfd_vma addend, symint_t value,
1420 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1421 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1422 symint_t sym_index));
1423 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1425 thash_t **hash_tbl));
1426 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1428 static void add_unknown_tag PARAMS ((tag_t *ptag));
1429 static void add_procedure PARAMS ((char *func));
1430 static void add_file PARAMS ((const char *file_name, int indx, int fake));
1432 static char *sc_to_string PARAMS ((sc_t storage_class));
1433 static char *st_to_string PARAMS ((st_t symbol_type));
1435 static void mark_stabs PARAMS ((int));
1436 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1437 char *bufptr, unsigned long need));
1438 static unsigned long ecoff_padding_adjust
1439 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1440 unsigned long offset, char **bufptrptr));
1441 static unsigned long ecoff_build_lineno
1442 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1443 unsigned long offset, long *linecntptr));
1444 static unsigned long ecoff_build_symbols
1445 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1446 unsigned long offset));
1447 static unsigned long ecoff_build_procs
1448 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1449 unsigned long offset));
1450 static unsigned long ecoff_build_aux
1451 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1452 unsigned long offset));
1453 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1454 unsigned long offset,
1456 static unsigned long ecoff_build_ss
1457 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1458 unsigned long offset));
1459 static unsigned long ecoff_build_fdr
1460 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1461 unsigned long offset));
1462 static void ecoff_setup_ext PARAMS ((void));
1463 static page_type *allocate_cluster PARAMS ((unsigned long npages));
1464 static page_type *allocate_page PARAMS ((void));
1465 static scope_t *allocate_scope PARAMS ((void));
1466 static void free_scope PARAMS ((scope_t *ptr));
1467 static vlinks_t *allocate_vlinks PARAMS ((void));
1468 static shash_t *allocate_shash PARAMS ((void));
1469 static thash_t *allocate_thash PARAMS ((void));
1470 static tag_t *allocate_tag PARAMS ((void));
1471 static void free_tag PARAMS ((tag_t *ptr));
1472 static forward_t *allocate_forward PARAMS ((void));
1473 static thead_t *allocate_thead PARAMS ((void));
1474 static void free_thead PARAMS ((thead_t *ptr));
1475 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1477 /* This function should be called when the assembler starts up. */
1480 ecoff_read_begin_hook ()
1482 tag_hash = hash_new ();
1483 top_tag_head = allocate_thead ();
1484 top_tag_head->first_tag = (tag_t *) NULL;
1485 top_tag_head->free = (thead_t *) NULL;
1486 top_tag_head->prev = cur_tag_head;
1487 cur_tag_head = top_tag_head;
1490 /* This function should be called when a symbol is created. */
1493 ecoff_symbol_new_hook (symbolP)
1496 OBJ_SYMFIELD_TYPE *obj;
1498 /* Make sure that we have a file pointer, but only if we have seen a
1499 file. If we haven't seen a file, then this is a probably special
1500 symbol created by md_begin which may required special handling at
1501 some point. Creating a dummy file with a dummy name is certainly
1503 if (cur_file_ptr == (efdr_t *) NULL
1504 && seen_at_least_1_file ())
1505 add_file ((const char *) NULL, 0, 1);
1506 obj = symbol_get_obj (symbolP);
1507 obj->ecoff_file = cur_file_ptr;
1508 obj->ecoff_symbol = NULL;
1509 obj->ecoff_extern_size = 0;
1512 /* Add a page to a varray object. */
1515 add_varray_page (vp)
1516 varray_t *vp; /* varray to add page to */
1518 vlinks_t *new_links = allocate_vlinks ();
1521 if (vp->object_size > 1)
1522 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1525 new_links->datum = allocate_page ();
1527 alloc_counts[(int) alloc_type_varray].total_alloc++;
1528 alloc_counts[(int) alloc_type_varray].total_pages++;
1530 new_links->start_index = vp->num_allocated;
1531 vp->objects_last_page = 0;
1533 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1534 vp->first = vp->last = new_links;
1536 { /* 2nd or greater allocation */
1537 new_links->prev = vp->last;
1538 vp->last->next = new_links;
1539 vp->last = new_links;
1543 /* Add a string (and null pad) to one of the string tables. */
1546 add_string (vp, hash_tbl, str, ret_hash)
1547 varray_t *vp; /* string obstack */
1548 struct hash_control *hash_tbl; /* ptr to hash table */
1549 const char *str; /* string */
1550 shash_t **ret_hash; /* return hash pointer */
1552 register unsigned long len = strlen (str);
1553 register shash_t *hash_ptr;
1555 if (len >= PAGE_USIZE)
1556 as_fatal (_("String too big (%lu bytes)"), len);
1558 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1559 if (hash_ptr == (shash_t *) NULL)
1561 register const char *err;
1563 if (vp->objects_last_page + len >= PAGE_USIZE)
1566 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1567 add_varray_page (vp);
1570 hash_ptr = allocate_shash ();
1571 hash_ptr->indx = vp->num_allocated;
1573 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1575 vp->objects_last_page += len + 1;
1576 vp->num_allocated += len + 1;
1578 strcpy (hash_ptr->string, str);
1580 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1582 as_fatal (_("Inserting \"%s\" into string hash table: %s"),
1586 if (ret_hash != (shash_t **) NULL)
1587 *ret_hash = hash_ptr;
1589 return hash_ptr->indx;
1592 /* Add debugging information for a symbol. */
1595 add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
1596 const char *str; /* symbol name */
1597 st_t type; /* symbol type */
1598 sc_t storage; /* storage class */
1599 symbolS *sym_value; /* associated symbol. */
1600 bfd_vma addend; /* addend to sym_value. */
1601 symint_t value; /* value of symbol */
1602 symint_t indx; /* index to local/aux. syms */
1605 register scope_t *pscope;
1606 register thead_t *ptag_head;
1607 register tag_t *ptag;
1608 register tag_t *ptag_next;
1609 register varray_t *vp;
1610 register int scope_delta = 0;
1611 shash_t *hash_ptr = (shash_t *) NULL;
1613 if (cur_file_ptr == (efdr_t *) NULL)
1614 as_fatal (_("no current file pointer"));
1616 vp = &cur_file_ptr->symbols;
1618 if (vp->objects_last_page == vp->objects_per_page)
1619 add_varray_page (vp);
1621 psym = &vp->last->datum->sym[vp->objects_last_page++];
1623 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1624 psym->name = S_GET_NAME (sym_value);
1627 psym->as_sym = sym_value;
1628 if (sym_value != (symbolS *) NULL)
1629 symbol_get_obj (sym_value)->ecoff_symbol = psym;
1630 psym->addend = addend;
1631 psym->file_ptr = cur_file_ptr;
1632 psym->proc_ptr = cur_proc_ptr;
1633 psym->begin_ptr = (localsym_t *) NULL;
1634 psym->index_ptr = (aux_t *) NULL;
1635 psym->forward_ref = (forward_t *) NULL;
1636 psym->sym_index = -1;
1637 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1638 psym->ecoff_sym.asym.value = value;
1639 psym->ecoff_sym.asym.st = (unsigned) type;
1640 psym->ecoff_sym.asym.sc = (unsigned) storage;
1641 psym->ecoff_sym.asym.index = indx;
1643 /* If there is an associated symbol, we wait until the end of the
1644 assembly before deciding where to put the name (it may be just an
1645 external symbol). Otherwise, this is just a debugging symbol and
1646 the name should go with the current file. */
1647 if (sym_value == (symbolS *) NULL)
1648 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1650 : add_string (&cur_file_ptr->strings,
1651 cur_file_ptr->str_hash,
1655 ++vp->num_allocated;
1657 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1660 /* Save the symbol within the hash table if this is a static
1661 item, and it has a name. */
1662 if (hash_ptr != (shash_t *) NULL
1663 && (type == st_Global || type == st_Static || type == st_Label
1664 || type == st_Proc || type == st_StaticProc))
1665 hash_ptr->sym_ptr = psym;
1667 /* push or pop a scope if appropriate. */
1673 case st_File: /* beginning of file */
1674 case st_Proc: /* procedure */
1675 case st_StaticProc: /* static procedure */
1676 case st_Block: /* begin scope */
1677 pscope = allocate_scope ();
1678 pscope->prev = cur_file_ptr->cur_scope;
1679 pscope->lsym = psym;
1680 pscope->type = type;
1681 cur_file_ptr->cur_scope = pscope;
1683 if (type != st_File)
1686 /* For every block type except file, struct, union, or
1687 enumeration blocks, push a level on the tag stack. We omit
1688 file types, so that tags can span file boundaries. */
1689 if (type != st_File && storage != sc_Info)
1691 ptag_head = allocate_thead ();
1692 ptag_head->first_tag = 0;
1693 ptag_head->prev = cur_tag_head;
1694 cur_tag_head = ptag_head;
1699 pscope = cur_file_ptr->cur_scope;
1700 if (pscope == (scope_t *) NULL)
1701 as_fatal (_("too many st_End's"));
1704 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1706 psym->begin_ptr = pscope->lsym;
1708 if (begin_type != st_File)
1711 /* Except for file, structure, union, or enumeration end
1712 blocks remove all tags created within this scope. */
1713 if (begin_type != st_File && storage != sc_Info)
1715 ptag_head = cur_tag_head;
1716 cur_tag_head = ptag_head->prev;
1718 for (ptag = ptag_head->first_tag;
1719 ptag != (tag_t *) NULL;
1722 if (ptag->forward_ref != (forward_t *) NULL)
1723 add_unknown_tag (ptag);
1725 ptag_next = ptag->same_block;
1726 ptag->hash_ptr->tag_ptr = ptag->same_name;
1730 free_thead (ptag_head);
1733 cur_file_ptr->cur_scope = pscope->prev;
1735 /* block begin gets next sym #. This is set when we know
1736 the symbol index value. */
1738 /* Functions push two or more aux words as follows:
1739 1st word: index+1 of the end symbol (filled in later).
1740 2nd word: type of the function (plus any aux words needed).
1741 Also, tie the external pointer back to the function begin symbol. */
1742 if (begin_type != st_File && begin_type != st_Block)
1745 varray_t *svp = &cur_file_ptr->aux_syms;
1747 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1748 pscope->lsym->index_ptr =
1749 &svp->last->datum->aux[svp->objects_last_page - 1];
1750 ty = add_aux_sym_tir (&last_func_type_info,
1752 &cur_file_ptr->thash_head[0]);
1754 /* This seems to be unnecessary. I'm not even sure what it is
1755 * intended to do. It's from mips-tfile.
1756 * if (last_func_sym_value != (symbolS *) NULL)
1758 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1759 * last_func_sym_value->index = ty;
1764 free_scope (pscope);
1768 cur_file_ptr->nested_scopes += scope_delta;
1771 if (debug && type != st_File
1772 && (debug > 2 || type == st_Block || type == st_End
1773 || type == st_Proc || type == st_StaticProc))
1775 char *sc_str = sc_to_string (storage);
1776 char *st_str = st_to_string (type);
1777 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1780 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1781 value, depth, sc_str);
1783 if (str_start && str_end_p1 - str_start > 0)
1784 fprintf (stderr, " st= %-11s name= %.*s\n",
1785 st_str, str_end_p1 - str_start, str_start);
1788 unsigned long len = strlen (st_str);
1789 fprintf (stderr, " st= %.*s\n", len - 1, st_str);
1797 /* Add an auxiliary symbol (passing a symint). This is actually used
1798 for integral aux types, not just symints. */
1801 add_aux_sym_symint (aux_word)
1802 symint_t aux_word; /* auxiliary information word */
1804 register varray_t *vp;
1805 register aux_t *aux_ptr;
1807 if (cur_file_ptr == (efdr_t *) NULL)
1808 as_fatal (_("no current file pointer"));
1810 vp = &cur_file_ptr->aux_syms;
1812 if (vp->objects_last_page == vp->objects_per_page)
1813 add_varray_page (vp);
1815 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1816 aux_ptr->type = aux_isym;
1817 aux_ptr->data.isym = aux_word;
1819 return vp->num_allocated++;
1822 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1825 add_aux_sym_rndx (file_index, sym_index)
1829 register varray_t *vp;
1830 register aux_t *aux_ptr;
1832 if (cur_file_ptr == (efdr_t *) NULL)
1833 as_fatal (_("no current file pointer"));
1835 vp = &cur_file_ptr->aux_syms;
1837 if (vp->objects_last_page == vp->objects_per_page)
1838 add_varray_page (vp);
1840 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1841 aux_ptr->type = aux_rndx;
1842 aux_ptr->data.rndx.rfd = file_index;
1843 aux_ptr->data.rndx.index = sym_index;
1845 return vp->num_allocated++;
1848 /* Add an auxiliary symbol (passing the basic type and possibly
1849 type qualifiers). */
1852 add_aux_sym_tir (t, state, hash_tbl)
1853 type_info_t *t; /* current type information */
1854 hash_state_t state; /* whether to hash type or not */
1855 thash_t **hash_tbl; /* pointer to hash table to use */
1857 register varray_t *vp;
1858 register aux_t *aux_ptr;
1859 static AUXU init_aux;
1864 if (cur_file_ptr == (efdr_t *) NULL)
1865 as_fatal (_("no current file pointer"));
1867 vp = &cur_file_ptr->aux_syms;
1870 aux.ti.bt = (int) t->basic_type;
1871 aux.ti.continued = 0;
1872 aux.ti.fBitfield = t->bitfield;
1874 aux.ti.tq0 = (int) t->type_qualifiers[0];
1875 aux.ti.tq1 = (int) t->type_qualifiers[1];
1876 aux.ti.tq2 = (int) t->type_qualifiers[2];
1877 aux.ti.tq3 = (int) t->type_qualifiers[3];
1878 aux.ti.tq4 = (int) t->type_qualifiers[4];
1879 aux.ti.tq5 = (int) t->type_qualifiers[5];
1881 /* For anything that adds additional information, we must not hash,
1882 so check here, and reset our state. */
1884 if (state != hash_no
1885 && (t->type_qualifiers[0] == tq_Array
1886 || t->type_qualifiers[1] == tq_Array
1887 || t->type_qualifiers[2] == tq_Array
1888 || t->type_qualifiers[3] == tq_Array
1889 || t->type_qualifiers[4] == tq_Array
1890 || t->type_qualifiers[5] == tq_Array
1891 || t->basic_type == bt_Struct
1892 || t->basic_type == bt_Union
1893 || t->basic_type == bt_Enum
1895 || t->num_dims > 0))
1898 /* See if we can hash this type, and save some space, but some types
1899 can't be hashed (because they contain arrays or continuations),
1900 and others can be put into the hash list, but cannot use existing
1901 types because other aux entries precede this one. */
1903 if (state != hash_no)
1905 register thash_t *hash_ptr;
1906 register symint_t hi;
1908 hi = aux.isym & ((1 << HASHBITS) - 1);
1911 for (hash_ptr = hash_tbl[hi];
1912 hash_ptr != (thash_t *)0;
1913 hash_ptr = hash_ptr->next)
1915 if (aux.isym == hash_ptr->type.isym)
1919 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1920 return hash_ptr->indx;
1922 if (hash_ptr == (thash_t *) NULL)
1924 hash_ptr = allocate_thash ();
1925 hash_ptr->next = hash_tbl[hi];
1926 hash_ptr->type = aux;
1927 hash_ptr->indx = vp->num_allocated;
1928 hash_tbl[hi] = hash_ptr;
1932 /* Everything is set up, add the aux symbol. */
1933 if (vp->objects_last_page == vp->objects_per_page)
1934 add_varray_page (vp);
1936 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1937 aux_ptr->type = aux_tir;
1938 aux_ptr->data = aux;
1940 ret = vp->num_allocated++;
1942 /* Add bitfield length if it exists.
1944 NOTE: Mips documentation claims bitfield goes at the end of the
1945 AUX record, but the DECstation compiler emits it here.
1946 (This would only make a difference for enum bitfields.)
1948 Also note: We use the last size given since gcc may emit 2
1949 for an enum bitfield. */
1952 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]);
1954 /* Add tag information if needed. Structure, union, and enum
1955 references add 2 aux symbols: a [file index, symbol index]
1956 pointer to the structure type, and the current file index. */
1958 if (t->basic_type == bt_Struct
1959 || t->basic_type == bt_Union
1960 || t->basic_type == bt_Enum)
1962 register symint_t file_index = t->tag_ptr->ifd;
1963 register localsym_t *sym = t->tag_ptr->sym;
1964 register forward_t *forward_ref = allocate_forward ();
1966 if (sym != (localsym_t *) NULL)
1968 forward_ref->next = sym->forward_ref;
1969 sym->forward_ref = forward_ref;
1973 forward_ref->next = t->tag_ptr->forward_ref;
1974 t->tag_ptr->forward_ref = forward_ref;
1977 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1978 forward_ref->index_ptr
1979 = &vp->last->datum->aux[vp->objects_last_page - 1];
1981 (void) add_aux_sym_symint (file_index);
1982 forward_ref->ifd_ptr
1983 = &vp->last->datum->aux[vp->objects_last_page - 1];
1986 /* Add information about array bounds if they exist. */
1987 for (i = 0; i < t->num_dims; i++)
1989 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1990 cur_file_ptr->int_type);
1992 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1993 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1994 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1995 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1997 : (t->sizes[i] * 8) / t->dimensions[i]);
2000 /* NOTE: Mips documentation claims that the bitfield width goes here.
2001 But it needs to be emitted earlier. */
2006 /* Add a tag to the tag table (unless it already exists). */
2009 get_tag (tag, sym, basic_type)
2010 const char *tag; /* tag name */
2011 localsym_t *sym; /* tag start block */
2012 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2018 if (cur_file_ptr == (efdr_t *) NULL)
2019 as_fatal (_("no current file pointer"));
2021 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2023 if (hash_ptr != (shash_t *) NULL
2024 && hash_ptr->tag_ptr != (tag_t *) NULL)
2026 tag_ptr = hash_ptr->tag_ptr;
2027 if (sym != (localsym_t *) NULL)
2029 tag_ptr->basic_type = basic_type;
2030 tag_ptr->ifd = cur_file_ptr->file_index;
2036 if (hash_ptr == (shash_t *) NULL)
2040 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2042 hash_ptr = allocate_shash ();
2043 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2045 as_fatal (_("Inserting \"%s\" into tag hash table: %s"),
2047 hash_ptr->string = perm;
2050 tag_ptr = allocate_tag ();
2051 tag_ptr->forward_ref = (forward_t *) NULL;
2052 tag_ptr->hash_ptr = hash_ptr;
2053 tag_ptr->same_name = hash_ptr->tag_ptr;
2054 tag_ptr->basic_type = basic_type;
2056 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2058 : cur_file_ptr->file_index);
2059 tag_ptr->same_block = cur_tag_head->first_tag;
2061 cur_tag_head->first_tag = tag_ptr;
2062 hash_ptr->tag_ptr = tag_ptr;
2067 /* Add an unknown {struct, union, enum} tag. */
2070 add_unknown_tag (ptag)
2071 tag_t *ptag; /* pointer to tag information */
2073 shash_t *hash_ptr = ptag->hash_ptr;
2074 char *name = hash_ptr->string;
2081 char *agg_type = "{unknown aggregate type}";
2082 switch (ptag->basic_type)
2084 case bt_Struct: agg_type = "struct"; break;
2085 case bt_Union: agg_type = "union"; break;
2086 case bt_Enum: agg_type = "enum"; break;
2090 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2091 hash_ptr->len, name_start);
2095 sym = add_ecoff_symbol (name,
2103 (void) add_ecoff_symbol (name,
2111 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2113 *pf = ptag->forward_ref;
2116 /* Add a procedure to the current file's list of procedures, and record
2117 this is the current procedure. */
2120 add_procedure (func)
2121 char *func; /* func name */
2123 register varray_t *vp;
2124 register proc_t *new_proc_ptr;
2129 fputc ('\n', stderr);
2132 if (cur_file_ptr == (efdr_t *) NULL)
2133 as_fatal (_("no current file pointer"));
2135 vp = &cur_file_ptr->procs;
2137 if (vp->objects_last_page == vp->objects_per_page)
2138 add_varray_page (vp);
2140 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2142 if (first_proc_ptr == (proc_t *) NULL)
2143 first_proc_ptr = new_proc_ptr;
2145 vp->num_allocated++;
2147 new_proc_ptr->pdr.isym = -1;
2148 new_proc_ptr->pdr.iline = -1;
2149 new_proc_ptr->pdr.lnLow = -1;
2150 new_proc_ptr->pdr.lnHigh = -1;
2152 /* Set the BSF_FUNCTION flag for the symbol. */
2153 sym = symbol_find_or_make (func);
2154 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
2156 /* Push the start of the function. */
2157 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2158 sym, (bfd_vma) 0, (symint_t) 0,
2163 /* Fill in the linenos preceding the .ent, if any. */
2164 if (noproc_lineno != (lineno_list_t *) NULL)
2168 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2169 l->proc = new_proc_ptr;
2170 *last_lineno_ptr = noproc_lineno;
2171 while (*last_lineno_ptr != NULL)
2173 last_lineno = *last_lineno_ptr;
2174 last_lineno_ptr = &last_lineno->next;
2176 noproc_lineno = (lineno_list_t *) NULL;
2181 ecoff_get_cur_proc_sym ()
2183 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL);
2186 /* Add a new filename, and set up all of the file relative
2187 virtual arrays (strings, symbols, aux syms, etc.). Record
2188 where the current file structure lives. */
2191 add_file (file_name, indx, fake)
2192 const char *file_name; /* file name */
2193 int indx ATTRIBUTE_UNUSED;
2196 register int first_ch;
2197 register efdr_t *fil_ptr;
2201 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2204 /* If the file name is NULL, then no .file symbol appeared, and we
2205 want to use the actual file name. */
2206 if (file_name == (const char *) NULL)
2210 if (first_file != (efdr_t *) NULL)
2211 as_fatal (_("fake .file after real one"));
2212 as_where (&file, (unsigned int *) NULL);
2213 file_name = (const char *) file;
2215 /* Automatically generate ECOFF debugging information, since I
2216 think that's what other ECOFF assemblers do. We don't do
2217 this if we see a .file directive with a string, since that
2218 implies that some sort of debugging information is being
2220 if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED)
2221 debug_type = DEBUG_ECOFF;
2223 else if (debug_type == DEBUG_UNSPECIFIED)
2224 debug_type = DEBUG_NONE;
2228 listing_source_file (file_name);
2231 current_stabs_filename = file_name;
2233 /* If we're creating stabs, then we don't actually make a new FDR.
2234 Instead, we just create a stabs symbol. */
2237 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2238 symbol_new ("L0\001", now_seg,
2239 (valueT) frag_now_fix (),
2241 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2245 first_ch = *file_name;
2247 /* FIXME: We can't safely merge files which have line number
2248 information (fMerge will be zero in this case). Otherwise, we
2249 get incorrect line number debugging info. See for instance
2250 ecoff_build_lineno, which will end up setting all file->fdr.*
2251 fields multiple times, resulting in incorrect debug info. In
2252 order to make this work right, all line number and symbol info
2253 for the same source file has to be adjacent in the object file,
2254 so that a single file descriptor can be used to point to them.
2255 This would require maintaining file specific lists of line
2256 numbers and symbols for each file, so that they can be merged
2257 together (or output together) when two .file pseudo-ops are
2258 merged into one file descriptor. */
2260 /* See if the file has already been created. */
2261 for (fil_ptr = first_file;
2262 fil_ptr != (efdr_t *) NULL;
2263 fil_ptr = fil_ptr->next_file)
2265 if (first_ch == fil_ptr->name[0]
2266 && strcmp (file_name, fil_ptr->name) == 0
2267 && fil_ptr->fdr.fMerge)
2269 cur_file_ptr = fil_ptr;
2271 cur_file_ptr->fake = 0;
2276 /* If this is a new file, create it. */
2277 if (fil_ptr == (efdr_t *) NULL)
2279 if (file_desc.objects_last_page == file_desc.objects_per_page)
2280 add_varray_page (&file_desc);
2282 fil_ptr = cur_file_ptr =
2283 &file_desc.last->datum->file[file_desc.objects_last_page++];
2284 *fil_ptr = init_file;
2286 fil_ptr->file_index = current_file_idx++;
2287 ++file_desc.num_allocated;
2289 fil_ptr->fake = fake;
2291 /* Allocate the string hash table. */
2292 fil_ptr->str_hash = hash_new ();
2294 /* Make sure 0 byte in string table is null */
2295 add_string (&fil_ptr->strings,
2300 if (strlen (file_name) > PAGE_USIZE - 2)
2301 as_fatal (_("Filename goes over one page boundary."));
2303 /* Push the start of the filename. We assume that the filename
2304 will be stored at string offset 1. */
2305 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2306 (symbolS *) NULL, (bfd_vma) 0,
2307 (symint_t) 0, (symint_t) 0);
2308 fil_ptr->fdr.rss = 1;
2309 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2311 /* Update the linked list of file descriptors. */
2312 *last_file_ptr = fil_ptr;
2313 last_file_ptr = &fil_ptr->next_file;
2315 /* Add void & int types to the file (void should be first to catch
2316 errant 0's within the index fields). */
2317 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2319 &cur_file_ptr->thash_head[0]);
2321 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2323 &cur_file_ptr->thash_head[0]);
2327 /* This function is called when the assembler notices a preprocessor
2328 directive switching to a new file. This will not happen in
2329 compiler output, only in hand coded assembler. */
2332 ecoff_new_file (name)
2335 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2337 add_file (name, 0, 0);
2339 /* This is a hand coded assembler file, so automatically turn on
2340 debugging information. */
2341 if (debug_type == DEBUG_UNSPECIFIED)
2342 debug_type = DEBUG_ECOFF;
2347 /* Convert storage class to string. */
2350 sc_to_string (storage_class)
2353 switch (storage_class)
2355 case sc_Nil: return "Nil,";
2356 case sc_Text: return "Text,";
2357 case sc_Data: return "Data,";
2358 case sc_Bss: return "Bss,";
2359 case sc_Register: return "Register,";
2360 case sc_Abs: return "Abs,";
2361 case sc_Undefined: return "Undefined,";
2362 case sc_CdbLocal: return "CdbLocal,";
2363 case sc_Bits: return "Bits,";
2364 case sc_CdbSystem: return "CdbSystem,";
2365 case sc_RegImage: return "RegImage,";
2366 case sc_Info: return "Info,";
2367 case sc_UserStruct: return "UserStruct,";
2368 case sc_SData: return "SData,";
2369 case sc_SBss: return "SBss,";
2370 case sc_RData: return "RData,";
2371 case sc_Var: return "Var,";
2372 case sc_Common: return "Common,";
2373 case sc_SCommon: return "SCommon,";
2374 case sc_VarRegister: return "VarRegister,";
2375 case sc_Variant: return "Variant,";
2376 case sc_SUndefined: return "SUndefined,";
2377 case sc_Init: return "Init,";
2378 case sc_Max: return "Max,";
2388 /* Convert symbol type to string. */
2391 st_to_string (symbol_type)
2394 switch (symbol_type)
2396 case st_Nil: return "Nil,";
2397 case st_Global: return "Global,";
2398 case st_Static: return "Static,";
2399 case st_Param: return "Param,";
2400 case st_Local: return "Local,";
2401 case st_Label: return "Label,";
2402 case st_Proc: return "Proc,";
2403 case st_Block: return "Block,";
2404 case st_End: return "End,";
2405 case st_Member: return "Member,";
2406 case st_Typedef: return "Typedef,";
2407 case st_File: return "File,";
2408 case st_RegReloc: return "RegReloc,";
2409 case st_Forward: return "Forward,";
2410 case st_StaticProc: return "StaticProc,";
2411 case st_Constant: return "Constant,";
2412 case st_Str: return "String,";
2413 case st_Number: return "Number,";
2414 case st_Expr: return "Expr,";
2415 case st_Type: return "Type,";
2416 case st_Max: return "Max,";
2424 /* Parse .begin directives which have a label as the first argument
2425 which gives the location of the start of the block. */
2428 ecoff_directive_begin (ignore)
2429 int ignore ATTRIBUTE_UNUSED;
2434 if (cur_file_ptr == (efdr_t *) NULL)
2436 as_warn (_(".begin directive without a preceding .file directive"));
2437 demand_empty_rest_of_line ();
2441 if (cur_proc_ptr == (proc_t *) NULL)
2443 as_warn (_(".begin directive without a preceding .ent directive"));
2444 demand_empty_rest_of_line ();
2448 name = input_line_pointer;
2449 name_end = get_symbol_end ();
2451 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2452 symbol_find_or_make (name),
2453 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2455 *input_line_pointer = name_end;
2457 /* The line number follows, but we don't use it. */
2458 (void) get_absolute_expression ();
2459 demand_empty_rest_of_line ();
2462 /* Parse .bend directives which have a label as the first argument
2463 which gives the location of the end of the block. */
2466 ecoff_directive_bend (ignore)
2467 int ignore ATTRIBUTE_UNUSED;
2473 if (cur_file_ptr == (efdr_t *) NULL)
2475 as_warn (_(".bend directive without a preceding .file directive"));
2476 demand_empty_rest_of_line ();
2480 if (cur_proc_ptr == (proc_t *) NULL)
2482 as_warn (_(".bend directive without a preceding .ent directive"));
2483 demand_empty_rest_of_line ();
2487 name = input_line_pointer;
2488 name_end = get_symbol_end ();
2490 /* The value is the distance between the .bend directive and the
2491 corresponding symbol. We fill in the offset when we write out
2493 endsym = symbol_find (name);
2494 if (endsym == (symbolS *) NULL)
2495 as_warn (_(".bend directive names unknown symbol"));
2497 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2498 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2500 *input_line_pointer = name_end;
2502 /* The line number follows, but we don't use it. */
2503 (void) get_absolute_expression ();
2504 demand_empty_rest_of_line ();
2507 /* COFF debugging information is provided as a series of directives
2508 (.def, .scl, etc.). We build up information as we read the
2509 directives in the following static variables, and file it away when
2510 we reach the .endef directive. */
2511 static char *coff_sym_name;
2512 static type_info_t coff_type;
2513 static sc_t coff_storage_class;
2514 static st_t coff_symbol_typ;
2515 static int coff_is_function;
2516 static char *coff_tag;
2517 static valueT coff_value;
2518 static symbolS *coff_sym_value;
2519 static bfd_vma coff_sym_addend;
2520 static int coff_inside_enumeration;
2522 /* Handle a .def directive: start defining a symbol. */
2525 ecoff_directive_def (ignore)
2526 int ignore ATTRIBUTE_UNUSED;
2531 ecoff_debugging_seen = 1;
2535 name = input_line_pointer;
2536 name_end = get_symbol_end ();
2538 if (coff_sym_name != (char *) NULL)
2539 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2540 else if (*name == '\0')
2541 as_warn (_("Empty symbol name in .def; ignored"));
2544 if (coff_sym_name != (char *) NULL)
2545 free (coff_sym_name);
2546 if (coff_tag != (char *) NULL)
2548 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2549 strcpy (coff_sym_name, name);
2550 coff_type = type_info_init;
2551 coff_storage_class = sc_Nil;
2552 coff_symbol_typ = st_Nil;
2553 coff_is_function = 0;
2554 coff_tag = (char *) NULL;
2556 coff_sym_value = (symbolS *) NULL;
2557 coff_sym_addend = 0;
2560 *input_line_pointer = name_end;
2562 demand_empty_rest_of_line ();
2565 /* Handle a .dim directive, used to give dimensions for an array. The
2566 arguments are comma separated numbers. mips-tfile assumes that
2567 there will not be more than 6 dimensions, and gdb won't read any
2568 more than that anyhow, so I will also make that assumption. */
2571 ecoff_directive_dim (ignore)
2572 int ignore ATTRIBUTE_UNUSED;
2577 if (coff_sym_name == (char *) NULL)
2579 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2580 demand_empty_rest_of_line ();
2584 for (i = 0; i < N_TQ; i++)
2587 dimens[i] = get_absolute_expression ();
2588 if (*input_line_pointer == ',')
2589 ++input_line_pointer;
2592 if (*input_line_pointer != '\n'
2593 && *input_line_pointer != ';')
2594 as_warn (_("Badly formed .dim directive"));
2602 /* The dimensions are stored away in reverse order. */
2605 if (coff_type.num_dims >= N_TQ)
2607 as_warn (_("Too many .dim entries"));
2610 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2611 ++coff_type.num_dims;
2614 demand_empty_rest_of_line ();
2617 /* Handle a .scl directive, which sets the COFF storage class of the
2621 ecoff_directive_scl (ignore)
2622 int ignore ATTRIBUTE_UNUSED;
2626 if (coff_sym_name == (char *) NULL)
2628 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2629 demand_empty_rest_of_line ();
2633 val = get_absolute_expression ();
2635 coff_symbol_typ = map_coff_sym_type[val];
2636 coff_storage_class = map_coff_storage[val];
2638 demand_empty_rest_of_line ();
2641 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2642 .size can have multiple arguments. We humor it, although gcc will
2643 never generate more than one argument. */
2646 ecoff_directive_size (ignore)
2647 int ignore ATTRIBUTE_UNUSED;
2652 if (coff_sym_name == (char *) NULL)
2654 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2655 demand_empty_rest_of_line ();
2659 for (i = 0; i < N_TQ; i++)
2662 sizes[i] = get_absolute_expression ();
2663 if (*input_line_pointer == ',')
2664 ++input_line_pointer;
2667 if (*input_line_pointer != '\n'
2668 && *input_line_pointer != ';')
2669 as_warn (_("Badly formed .size directive"));
2677 /* The sizes are stored away in reverse order. */
2680 if (coff_type.num_sizes >= N_TQ)
2682 as_warn (_("Too many .size entries"));
2685 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2686 ++coff_type.num_sizes;
2689 demand_empty_rest_of_line ();
2692 /* Handle the .type directive, which gives the COFF type of the
2696 ecoff_directive_type (ignore)
2697 int ignore ATTRIBUTE_UNUSED;
2703 if (coff_sym_name == (char *) NULL)
2705 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2706 demand_empty_rest_of_line ();
2710 val = get_absolute_expression ();
2712 coff_type.orig_type = BTYPE (val);
2713 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2715 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2716 while (val & ~N_BTMASK)
2718 if (tq_ptr == &coff_type.type_qualifiers[0])
2720 /* FIXME: We could handle this by setting the continued bit.
2721 There would still be a limit: the .type argument can not
2723 as_warn (_("The type of %s is too complex; it will be simplified"),
2729 else if (ISFCN (val))
2730 *--tq_ptr = tq_Proc;
2731 else if (ISARY (val))
2732 *--tq_ptr = tq_Array;
2734 as_fatal (_("Unrecognized .type argument"));
2739 tq_shft = &coff_type.type_qualifiers[0];
2740 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2741 *tq_shft++ = *tq_ptr++;
2743 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2745 /* If this is a function, ignore it, so that we don't get two
2746 entries (one from the .ent, and one for the .def that
2747 precedes it). Save the type information so that the end
2748 block can properly add it after the begin block index. For
2749 MIPS knows what reason, we must strip off the function type
2751 coff_is_function = 1;
2752 tq_shft[-1] = tq_Nil;
2755 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2756 *tq_shft++ = tq_Nil;
2758 demand_empty_rest_of_line ();
2761 /* Handle the .tag directive, which gives the name of a structure,
2765 ecoff_directive_tag (ignore)
2766 int ignore ATTRIBUTE_UNUSED;
2771 if (coff_sym_name == (char *) NULL)
2773 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2774 demand_empty_rest_of_line ();
2778 name = input_line_pointer;
2779 name_end = get_symbol_end ();
2781 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2782 strcpy (coff_tag, name);
2784 *input_line_pointer = name_end;
2786 demand_empty_rest_of_line ();
2789 /* Handle the .val directive, which gives the value of the symbol. It
2790 may be the name of a static or global symbol. */
2793 ecoff_directive_val (ignore)
2794 int ignore ATTRIBUTE_UNUSED;
2798 if (coff_sym_name == (char *) NULL)
2800 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2801 demand_empty_rest_of_line ();
2806 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2808 as_bad (_(".val expression is too copmlex"));
2809 demand_empty_rest_of_line ();
2813 if (exp.X_op == O_constant)
2814 coff_value = exp.X_add_number;
2817 coff_sym_value = exp.X_add_symbol;
2818 coff_sym_addend = exp.X_add_number;
2821 demand_empty_rest_of_line ();
2824 /* Handle the .endef directive, which terminates processing of COFF
2825 debugging information for a symbol. */
2828 ecoff_directive_endef (ignore)
2829 int ignore ATTRIBUTE_UNUSED;
2835 demand_empty_rest_of_line ();
2837 if (coff_sym_name == (char *) NULL)
2839 as_warn (_(".endef pseudo-op used before .def; ignored"));
2843 name = coff_sym_name;
2844 coff_sym_name = (char *) NULL;
2846 /* If the symbol is a static or external, we have already gotten the
2847 appropriate type and class, so make sure we don't override those
2848 values. This is needed because there are some type and classes
2849 that are not in COFF, such as short data, etc. */
2850 if (coff_sym_value != (symbolS *) NULL)
2852 coff_symbol_typ = st_Nil;
2853 coff_storage_class = sc_Nil;
2856 coff_type.extra_sizes = coff_tag != (char *) NULL;
2857 if (coff_type.num_dims > 0)
2859 int diff = coff_type.num_dims - coff_type.num_sizes;
2860 int i = coff_type.num_dims - 1;
2863 if (coff_type.num_sizes != 1 || diff < 0)
2865 as_warn (_("Bad COFF debugging info"));
2869 /* If this is an array, make sure the same number of dimensions
2870 and sizes were passed, creating extra sizes for multiply
2871 dimensioned arrays if not passed. */
2872 coff_type.extra_sizes = 0;
2875 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2878 coff_type.sizes[j] = (((j - diff) >= 0)
2879 ? coff_type.sizes[j - diff]
2884 coff_type.num_sizes = i + 1;
2885 for (i--; i >= 0; i--)
2886 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2888 : (coff_type.sizes[i + 1]
2889 / coff_type.dimensions[i + 1]));
2892 else if (coff_symbol_typ == st_Member
2893 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2895 /* Is this a bitfield? This is indicated by a structure memeber
2896 having a size field that isn't an array. */
2897 coff_type.bitfield = 1;
2900 /* Except for enumeration members & begin/ending of scopes, put the
2901 type word in the aux. symbol table. */
2902 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2904 else if (coff_inside_enumeration)
2905 indx = cur_file_ptr->void_type;
2908 if (coff_type.basic_type == bt_Struct
2909 || coff_type.basic_type == bt_Union
2910 || coff_type.basic_type == bt_Enum)
2912 if (coff_tag == (char *) NULL)
2914 as_warn (_("No tag specified for %s"), name);
2918 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2919 coff_type.basic_type);
2922 if (coff_is_function)
2924 last_func_type_info = coff_type;
2925 last_func_sym_value = coff_sym_value;
2929 indx = add_aux_sym_tir (&coff_type,
2931 &cur_file_ptr->thash_head[0]);
2934 /* Do any last minute adjustments that are necessary. */
2935 switch (coff_symbol_typ)
2940 /* For the beginning of structs, unions, and enumerations, the
2941 size info needs to be passed in the value field. */
2943 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2946 as_warn (_("Bad COFF debugging information"));
2950 coff_value = coff_type.sizes[0];
2952 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2955 /* For the end of structs, unions, and enumerations, omit the
2956 name which is always ".eos". This needs to be done last, so
2957 that any error reporting above gives the correct name. */
2960 name = (char *) NULL;
2962 coff_inside_enumeration = 0;
2965 /* Members of structures and unions that aren't bitfields, need
2966 to adjust the value from a byte offset to a bit offset.
2967 Members of enumerations do not have the value adjusted, and
2968 can be distinguished by indx == indexNil. For enumerations,
2969 update the maximum enumeration value. */
2971 if (! coff_type.bitfield && ! coff_inside_enumeration)
2977 /* Add the symbol. */
2978 sym = add_ecoff_symbol (name,
2983 (symint_t) coff_value,
2986 /* deal with struct, union, and enum tags. */
2987 if (coff_symbol_typ == st_Block)
2989 /* Create or update the tag information. */
2990 tag_t *tag_ptr = get_tag (name,
2992 coff_type.basic_type);
2995 /* Remember any forward references. */
2996 for (pf = &sym->forward_ref;
2997 *pf != (forward_t *) NULL;
3000 *pf = tag_ptr->forward_ref;
3001 tag_ptr->forward_ref = (forward_t *) NULL;
3005 /* Parse .end directives. */
3008 ecoff_directive_end (ignore)
3009 int ignore ATTRIBUTE_UNUSED;
3016 if (cur_file_ptr == (efdr_t *) NULL)
3018 as_warn (_(".end directive without a preceding .file directive"));
3019 demand_empty_rest_of_line ();
3023 if (cur_proc_ptr == (proc_t *) NULL)
3025 as_warn (_(".end directive without a preceding .ent directive"));
3026 demand_empty_rest_of_line ();
3030 name = input_line_pointer;
3031 name_end = get_symbol_end ();
3034 if (! is_name_beginner (ch))
3036 as_warn (_(".end directive has no name"));
3037 *input_line_pointer = name_end;
3038 demand_empty_rest_of_line ();
3042 /* The value is the distance between the .end directive and the
3043 corresponding symbol. We create a fake symbol to hold the
3044 current location, and put in the offset when we write out the
3046 ent = symbol_find (name);
3047 if (ent == (symbolS *) NULL)
3048 as_warn (_(".end directive names unknown symbol"));
3050 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3051 symbol_new ("L0\001", now_seg,
3052 (valueT) frag_now_fix (),
3054 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3056 cur_proc_ptr = (proc_t *) NULL;
3058 *input_line_pointer = name_end;
3059 demand_empty_rest_of_line ();
3062 /* Parse .ent directives. */
3065 ecoff_directive_ent (ignore)
3066 int ignore ATTRIBUTE_UNUSED;
3072 if (cur_file_ptr == (efdr_t *) NULL)
3073 add_file ((const char *) NULL, 0, 1);
3075 if (cur_proc_ptr != (proc_t *) NULL)
3077 as_warn (_("second .ent directive found before .end directive"));
3078 demand_empty_rest_of_line ();
3082 name = input_line_pointer;
3083 name_end = get_symbol_end ();
3086 if (! is_name_beginner (ch))
3088 as_warn (_(".ent directive has no name"));
3089 *input_line_pointer = name_end;
3090 demand_empty_rest_of_line ();
3094 add_procedure (name);
3096 *input_line_pointer = name_end;
3098 /* The .ent directive is sometimes followed by a number. I'm not
3099 really sure what the number means. I don't see any way to store
3100 the information in the PDR. The Irix 4 assembler seems to ignore
3103 if (*input_line_pointer == ',')
3105 ++input_line_pointer;
3108 if (isdigit ((unsigned char) *input_line_pointer)
3109 || *input_line_pointer == '-')
3110 (void) get_absolute_expression ();
3112 demand_empty_rest_of_line ();
3115 /* Parse .extern directives. */
3118 ecoff_directive_extern (ignore)
3119 int ignore ATTRIBUTE_UNUSED;
3126 name = input_line_pointer;
3127 c = get_symbol_end ();
3128 symbolp = symbol_find_or_make (name);
3129 *input_line_pointer = c;
3131 S_SET_EXTERNAL (symbolp);
3133 if (*input_line_pointer == ',')
3134 ++input_line_pointer;
3135 size = get_absolute_expression ();
3137 symbol_get_obj (symbolp)->ecoff_extern_size = size;
3140 /* Parse .file directives. */
3143 ecoff_directive_file (ignore)
3144 int ignore ATTRIBUTE_UNUSED;
3150 if (cur_proc_ptr != (proc_t *) NULL)
3152 as_warn (_("No way to handle .file within .ent/.end section"));
3153 demand_empty_rest_of_line ();
3157 indx = (int) get_absolute_expression ();
3159 /* FIXME: we don't have to save the name here. */
3160 name = demand_copy_C_string (&len);
3162 add_file (name, indx - 1, 0);
3164 demand_empty_rest_of_line ();
3167 /* Parse .fmask directives. */
3170 ecoff_directive_fmask (ignore)
3171 int ignore ATTRIBUTE_UNUSED;
3175 if (cur_proc_ptr == (proc_t *) NULL)
3177 as_warn (_(".fmask outside of .ent"));
3178 demand_empty_rest_of_line ();
3182 if (get_absolute_expression_and_terminator (&val) != ',')
3184 as_warn (_("Bad .fmask directive"));
3185 --input_line_pointer;
3186 demand_empty_rest_of_line ();
3190 cur_proc_ptr->pdr.fregmask = val;
3191 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3193 demand_empty_rest_of_line ();
3196 /* Parse .frame directives. */
3199 ecoff_directive_frame (ignore)
3200 int ignore ATTRIBUTE_UNUSED;
3204 if (cur_proc_ptr == (proc_t *) NULL)
3206 as_warn (_(".frame outside of .ent"));
3207 demand_empty_rest_of_line ();
3211 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3214 if (*input_line_pointer++ != ','
3215 || get_absolute_expression_and_terminator (&val) != ',')
3217 as_warn (_("Bad .frame directive"));
3218 --input_line_pointer;
3219 demand_empty_rest_of_line ();
3223 cur_proc_ptr->pdr.frameoffset = val;
3225 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3228 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to
3229 Sandro. I don't yet know where this value should be stored, if
3231 demand_empty_rest_of_line ();
3237 /* Parse .mask directives. */
3240 ecoff_directive_mask (ignore)
3241 int ignore ATTRIBUTE_UNUSED;
3245 if (cur_proc_ptr == (proc_t *) NULL)
3247 as_warn (_(".mask outside of .ent"));
3248 demand_empty_rest_of_line ();
3252 if (get_absolute_expression_and_terminator (&val) != ',')
3254 as_warn (_("Bad .mask directive"));
3255 --input_line_pointer;
3256 demand_empty_rest_of_line ();
3260 cur_proc_ptr->pdr.regmask = val;
3261 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3263 demand_empty_rest_of_line ();
3266 /* Parse .loc directives. */
3269 ecoff_directive_loc (ignore)
3270 int ignore ATTRIBUTE_UNUSED;
3272 lineno_list_t *list;
3275 if (cur_file_ptr == (efdr_t *) NULL)
3277 as_warn (_(".loc before .file"));
3278 demand_empty_rest_of_line ();
3282 if (now_seg != text_section)
3284 as_warn (_(".loc outside of .text"));
3285 demand_empty_rest_of_line ();
3289 /* Skip the file number. */
3291 get_absolute_expression ();
3294 lineno = get_absolute_expression ();
3298 listing_source_line (lineno);
3301 /* If we're building stabs, then output a special label rather than
3302 ECOFF line number info. */
3305 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3306 symbol_new ("L0\001", now_seg,
3307 (valueT) frag_now_fix (),
3309 (bfd_vma) 0, 0, lineno);
3313 list = allocate_lineno_list ();
3315 list->next = (lineno_list_t *) NULL;
3316 list->file = cur_file_ptr;
3317 list->proc = cur_proc_ptr;
3318 list->frag = frag_now;
3319 list->paddr = frag_now_fix ();
3320 list->lineno = lineno;
3322 /* We don't want to merge files which have line numbers. */
3323 cur_file_ptr->fdr.fMerge = 0;
3325 /* A .loc directive will sometimes appear before a .ent directive,
3326 which means that cur_proc_ptr will be NULL here. Arrange to
3328 if (cur_proc_ptr == (proc_t *) NULL)
3332 pl = &noproc_lineno;
3333 while (*pl != (lineno_list_t *) NULL)
3340 *last_lineno_ptr = list;
3341 last_lineno_ptr = &list->next;
3345 /* The MIPS assembler sometimes inserts nop instructions in the
3346 instruction stream. When this happens, we must patch up the .loc
3347 information so that it points to the instruction after the nop. */
3350 ecoff_fix_loc (old_frag, old_frag_offset)
3352 unsigned long old_frag_offset;
3354 if (last_lineno != NULL
3355 && last_lineno->frag == old_frag
3356 && last_lineno->paddr == old_frag_offset)
3358 last_lineno->frag = frag_now;
3359 last_lineno->paddr = frag_now_fix ();
3363 /* Make sure the @stabs symbol is emitted. */
3367 int ignore ATTRIBUTE_UNUSED;
3371 /* Add a dummy @stabs dymbol. */
3373 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3375 (bfd_vma) 0, (symint_t) -1,
3376 ECOFF_MARK_STAB (0));
3380 /* Parse .weakext directives. */
3382 /* For TC_MIPS use the version in tc-mips.c. */
3384 ecoff_directive_weakext (ignore)
3392 name = input_line_pointer;
3393 c = get_symbol_end ();
3394 symbolP = symbol_find_or_make (name);
3395 *input_line_pointer = c;
3399 if (*input_line_pointer == ',')
3401 if (S_IS_DEFINED (symbolP))
3403 as_bad (_("Ignoring attempt to redefine symbol `%s'."),
3404 S_GET_NAME (symbolP));
3405 ignore_rest_of_line ();
3409 ++input_line_pointer;
3411 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3414 if (exp.X_op != O_symbol)
3416 as_bad (_("bad .weakext directive"));
3417 ignore_rest_of_line ();
3420 symbol_set_value_expression (symbolP, &exp);
3424 S_SET_WEAK (symbolP);
3426 demand_empty_rest_of_line ();
3428 #endif /* not TC_MIPS */
3430 /* Handle .stabs directives. The actual parsing routine is done by a
3431 generic routine. This routine is called via OBJ_PROCESS_STAB.
3432 When this is called, input_line_pointer will be pointing at the
3433 value field of the stab.
3435 .stabs directives have five fields:
3436 "string" a string, encoding the type information.
3437 code a numeric code, defined in <stab.h>
3439 desc a zero or line number
3440 value a numeric value or an address.
3442 If the value is relocatable, we transform this into:
3443 iss points as an index into string space
3444 value value from lookup of the name
3445 st st from lookup of the name
3446 sc sc from lookup of the name
3447 index code|CODE_MASK
3449 If the value is not relocatable, we transform this into:
3450 iss points as an index into string space
3454 index code|CODE_MASK
3456 .stabn directives have four fields (string is null):
3457 code a numeric code, defined in <stab.h>
3459 desc a zero or a line number
3460 value a numeric value or an address. */
3463 ecoff_stab (sec, what, string, type, other, desc)
3464 segT sec ATTRIBUTE_UNUSED;
3471 efdr_t *save_file_ptr = cur_file_ptr;
3478 localsym_t *hold = NULL;
3480 ecoff_debugging_seen = 1;
3482 /* We don't handle .stabd. */
3483 if (what != 's' && what != 'n')
3485 as_bad (_(".stab%c is not supported"), what);
3489 /* A .stabn uses a null name, not an empty string. */
3493 /* We ignore the other field. */
3495 as_warn (_(".stab%c: ignoring non-zero other field"), what);
3497 /* Make sure we have a current file. */
3498 if (cur_file_ptr == (efdr_t *) NULL)
3500 add_file ((const char *) NULL, 0, 1);
3501 save_file_ptr = cur_file_ptr;
3504 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3506 if (stabs_seen == 0)
3509 /* Line number stabs are handled differently, since they have two
3510 values, the line number and the address of the label. We use the
3511 index field (aka desc) to hold the line number, and the value
3512 field to hold the address. The symbol type is st_Label, which
3513 should be different from the other stabs, so that gdb can
3515 if (type == N_SLINE)
3523 listing_source_line ((unsigned int) desc);
3526 dummy_symr.index = desc;
3527 if (dummy_symr.index != desc)
3529 as_warn (_("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3534 name = input_line_pointer;
3535 name_end = get_symbol_end ();
3537 sym = symbol_find_or_make (name);
3538 *input_line_pointer = name_end;
3549 if (listing && (type == N_SO || type == N_SOL))
3550 listing_source_file (string);
3553 if (isdigit ((unsigned char) *input_line_pointer)
3554 || *input_line_pointer == '-'
3555 || *input_line_pointer == '+')
3559 sym = (symbolS *) NULL;
3560 value = get_absolute_expression ();
3563 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3565 as_warn (_("Illegal .stab%c directive, bad character"), what);
3576 if (exp.X_op == O_constant)
3579 value = exp.X_add_number;
3582 else if (exp.X_op == O_symbol)
3584 sym = exp.X_add_symbol;
3586 addend = exp.X_add_number;
3590 sym = make_expr_symbol (&exp);
3596 indx = ECOFF_MARK_STAB (type);
3599 /* Don't store the stabs symbol we are creating as the type of the
3600 ECOFF symbol. We want to compute the type of the ECOFF symbol
3602 if (sym != (symbolS *) NULL)
3603 hold = symbol_get_obj (sym)->ecoff_symbol;
3605 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3607 if (sym != (symbolS *) NULL)
3608 symbol_get_obj (sym)->ecoff_symbol = hold;
3610 /* Restore normal file type. */
3611 cur_file_ptr = save_file_ptr;
3614 /* Frob an ECOFF symbol. Small common symbols go into a special
3615 .scommon section rather than bfd_com_section. */
3618 ecoff_frob_symbol (sym)
3621 if (S_IS_COMMON (sym)
3622 && S_GET_VALUE (sym) > 0
3623 && S_GET_VALUE (sym) <= (unsigned) bfd_get_gp_size (stdoutput))
3625 static asection scom_section;
3626 static asymbol scom_symbol;
3628 /* We must construct a fake section similar to bfd_com_section
3629 but with the name .scommon. */
3630 if (scom_section.name == NULL)
3632 scom_section = bfd_com_section;
3633 scom_section.name = ".scommon";
3634 scom_section.output_section = &scom_section;
3635 scom_section.symbol = &scom_symbol;
3636 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3637 scom_symbol = *bfd_com_section.symbol;
3638 scom_symbol.name = ".scommon";
3639 scom_symbol.section = &scom_section;
3641 S_SET_SEGMENT (sym, &scom_section);
3644 /* Double check weak symbols. */
3645 if (S_IS_WEAK (sym))
3647 if (S_IS_COMMON (sym))
3648 as_bad (_("Symbol `%s' can not be both weak and common"),
3653 /* Add bytes to the symbolic information buffer. */
3656 ecoff_add_bytes (buf, bufend, bufptr, need)
3666 need -= *bufend - bufptr;
3667 if (need < PAGE_SIZE)
3669 want = (*bufend - *buf) + need;
3670 *buf = xrealloc (*buf, want);
3671 *bufend = *buf + want;
3675 /* Adjust the symbolic information buffer to the alignment required
3676 for the ECOFF target debugging information. */
3678 static unsigned long
3679 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3680 const struct ecoff_debug_swap *backend;
3683 unsigned long offset;
3686 bfd_size_type align;
3688 align = backend->debug_align;
3689 if ((offset & (align - 1)) != 0)
3693 add = align - (offset & (align - 1));
3694 if ((unsigned long) (*bufend - (*buf + offset)) < add)
3695 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3696 memset (*buf + offset, 0, add);
3698 if (bufptrptr != (char **) NULL)
3699 *bufptrptr = *buf + offset;
3705 /* Build the line number information. */
3707 static unsigned long
3708 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3709 const struct ecoff_debug_swap *backend;
3712 unsigned long offset;
3716 register lineno_list_t *l;
3717 lineno_list_t *last;
3723 lineno_list_t first;
3724 lineno_list_t *local_first_lineno = first_lineno;
3726 if (linecntptr != (long *) NULL)
3729 bufptr = *buf + offset;
3731 file = (efdr_t *) NULL;
3732 proc = (proc_t *) NULL;
3733 last = (lineno_list_t *) NULL;
3738 /* For some reason the address of the first procedure is ignored
3739 when reading line numbers. This doesn't matter if the address of
3740 the first procedure is 0, but when gcc is generating MIPS
3741 embedded PIC code, it will put strings in the .text section
3742 before the first procedure. We cope by inserting a dummy line if
3743 the address of the first procedure is not 0. Hopefully this
3744 won't screw things up too badly.
3746 Don't do this for ECOFF assembly source line numbers. They work
3747 without this extra attention. */
3748 if (debug_type != DEBUG_ECOFF
3749 && first_proc_ptr != (proc_t *) NULL
3750 && local_first_lineno != (lineno_list_t *) NULL
3751 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3752 + bfd_get_section_vma (stdoutput,
3753 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3756 first.file = local_first_lineno->file;
3757 first.proc = local_first_lineno->proc;
3758 first.frag = &zero_address_frag;
3762 first.next = local_first_lineno;
3763 local_first_lineno = &first;
3766 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3771 /* Get the offset to the memory address of the next line number
3772 (in words). Do this first, so that we can skip ahead to the
3773 next useful line number entry. */
3774 if (l->next == (lineno_list_t *) NULL)
3776 /* We want a count of zero, but it will be decremented
3777 before it is used. */
3780 else if (l->next->frag->fr_address + l->next->paddr
3781 > l->frag->fr_address + l->paddr)
3783 count = ((l->next->frag->fr_address + l->next->paddr
3784 - (l->frag->fr_address + l->paddr))
3789 /* Don't change last, so we still get the right delta. */
3793 if (l->file != file || l->proc != proc)
3795 if (l->proc != proc && proc != (proc_t *) NULL)
3796 proc->pdr.lnHigh = last->lineno;
3797 if (l->file != file && file != (efdr_t *) NULL)
3799 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3800 file->fdr.cline = totcount + count;
3801 if (linecntptr != (long *) NULL)
3802 *linecntptr += totcount + count;
3806 if (l->file != file)
3808 efdr_t *last_file = file;
3811 if (last_file != (efdr_t *) NULL)
3813 = last_file->fdr.ilineBase + last_file->fdr.cline;
3815 file->fdr.ilineBase = 0;
3816 file->fdr.cbLineOffset = c;
3818 if (l->proc != proc)
3821 if (proc != (proc_t *) NULL)
3823 proc->pdr.lnLow = l->lineno;
3824 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3825 proc->pdr.iline = totcount;
3829 last = (lineno_list_t *) NULL;
3834 /* Get the offset to this line number. */
3835 if (last == (lineno_list_t *) NULL)
3838 delta = l->lineno - last->lineno;
3840 /* Put in the offset to this line number. */
3845 /* 1 is added to each count read. */
3847 /* We can only adjust the word count by up to 15 words at a
3859 if (delta >= -7 && delta <= 7)
3861 if (bufptr >= *bufend)
3862 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3863 *bufptr++ = setcount + (delta << 4);
3871 if (*bufend - bufptr < 3)
3872 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3873 *bufptr++ = setcount + (8 << 4);
3874 if (delta < -0x8000)
3879 else if (delta > 0x7fff)
3889 *bufptr++ = set >> 8;
3890 *bufptr++ = set & 0xffff;
3895 /* Finish adjusting the count. */
3898 if (bufptr >= *bufend)
3899 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3900 /* 1 is added to each count read. */
3919 if (proc != (proc_t *) NULL)
3920 proc->pdr.lnHigh = last->lineno;
3921 if (file != (efdr_t *) NULL)
3923 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3924 file->fdr.cline = totcount;
3927 if (linecntptr != (long *) NULL)
3928 *linecntptr += totcount;
3930 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3935 /* Build and swap out the symbols. */
3937 static unsigned long
3938 ecoff_build_symbols (backend, buf, bufend, offset)
3939 const struct ecoff_debug_swap *backend;
3942 unsigned long offset;
3944 const bfd_size_type external_sym_size = backend->external_sym_size;
3945 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3946 = backend->swap_sym_out;
3949 vlinks_t *file_link;
3951 sym_out = *buf + offset;
3955 /* The symbols are stored by file. */
3956 for (file_link = file_desc.first;
3957 file_link != (vlinks_t *) NULL;
3958 file_link = file_link->next)
3965 if (file_link->next == (vlinks_t *) NULL)
3966 fil_cnt = file_desc.objects_last_page;
3968 fil_cnt = file_desc.objects_per_page;
3969 fil_ptr = file_link->datum->file;
3970 fil_end = fil_ptr + fil_cnt;
3971 for (; fil_ptr < fil_end; fil_ptr++)
3975 fil_ptr->fdr.isymBase = isym;
3977 for (sym_link = fil_ptr->symbols.first;
3978 sym_link != (vlinks_t *) NULL;
3979 sym_link = sym_link->next)
3982 localsym_t *sym_ptr;
3983 localsym_t *sym_end;
3985 if (sym_link->next == (vlinks_t *) NULL)
3986 sym_cnt = fil_ptr->symbols.objects_last_page;
3988 sym_cnt = fil_ptr->symbols.objects_per_page;
3989 sym_ptr = sym_link->datum->sym;
3990 sym_end = sym_ptr + sym_cnt;
3991 for (; sym_ptr < sym_end; sym_ptr++)
3997 know (sym_ptr->file_ptr == fil_ptr);
3999 /* If there is no associated gas symbol, then this
4000 is a pure debugging symbol. We have already
4001 added the name (if any) to fil_ptr->strings.
4002 Otherwise we must decide whether this is an
4003 external or a local symbol (actually, it may be
4004 both if the local provides additional debugging
4005 information for the external). */
4007 as_sym = sym_ptr->as_sym;
4008 if (as_sym != (symbolS *) NULL)
4012 /* The value of a block start symbol is the
4013 offset from the start of the procedure. For
4014 other symbols we just use the gas value (but
4015 we must offset it by the vma of the section,
4016 just as BFD does, because BFD will not see
4018 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4019 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4023 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4024 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4025 if (S_GET_SEGMENT (as_sym)
4026 != S_GET_SEGMENT (begin_sym))
4027 as_warn (_(".begin/.bend in different segments"));
4028 sym_ptr->ecoff_sym.asym.value =
4029 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4032 sym_ptr->ecoff_sym.asym.value =
4033 (S_GET_VALUE (as_sym)
4034 + bfd_get_section_vma (stdoutput,
4035 S_GET_SEGMENT (as_sym))
4038 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4040 /* Set st_Proc to st_StaticProc for local
4042 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4043 && S_IS_DEFINED (as_sym)
4044 && ! S_IS_EXTERNAL (as_sym)
4045 && ! S_IS_WEAK (as_sym))
4046 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4048 /* Get the type and storage class based on where
4049 the symbol actually wound up. Traditionally,
4050 N_LBRAC and N_RBRAC are *not* relocated. */
4051 indx = sym_ptr->ecoff_sym.asym.index;
4052 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4053 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4054 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4055 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4056 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4059 const char *segname;
4063 seg = S_GET_SEGMENT (as_sym);
4064 segname = segment_name (seg);
4066 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4067 && (S_IS_EXTERNAL (as_sym)
4068 || S_IS_WEAK (as_sym)
4069 || ! S_IS_DEFINED (as_sym)))
4071 if ((symbol_get_bfdsym (as_sym)->flags
4072 & BSF_FUNCTION) != 0)
4077 else if (seg == text_section)
4082 if (! S_IS_DEFINED (as_sym))
4086 s = symbol_get_obj (as_sym)->ecoff_extern_size;
4088 || s > (unsigned) bfd_get_gp_size (stdoutput))
4093 sym_ptr->ecoff_sym.asym.value = s;
4096 S_SET_SIZE (as_sym, s);
4099 else if (S_IS_COMMON (as_sym))
4101 if (S_GET_VALUE (as_sym) > 0
4102 && (S_GET_VALUE (as_sym)
4103 <= (unsigned) bfd_get_gp_size (stdoutput)))
4108 else if (seg == text_section)
4110 else if (seg == data_section)
4112 else if (strcmp (segname, ".rdata") == 0
4113 || strcmp (segname, ".rodata") == 0)
4115 else if (strcmp (segname, ".sdata") == 0)
4117 else if (seg == bss_section)
4119 else if (strcmp (segname, ".sbss") == 0)
4121 else if (seg == &bfd_abs_section)
4125 /* This must be a user named section.
4126 This is not possible in ECOFF, but it
4131 sym_ptr->ecoff_sym.asym.st = (int) st;
4132 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4135 /* This is just an external symbol if it is
4136 outside a procedure and it has a type.
4137 FIXME: g++ will generate symbols which have
4138 different names in the debugging information
4139 than the actual symbol. Should we handle
4141 if ((S_IS_EXTERNAL (as_sym)
4142 || S_IS_WEAK (as_sym)
4143 || ! S_IS_DEFINED (as_sym))
4144 && sym_ptr->proc_ptr == (proc_t *) NULL
4145 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4146 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4149 /* This is just an external symbol if it is a
4151 if (S_IS_COMMON (as_sym))
4154 /* If an st_end symbol has an associated gas
4155 symbol, then it is a local label created for
4156 a .bend or .end directive. Stabs line
4157 numbers will have \001 in the names. */
4159 && sym_ptr->ecoff_sym.asym.st != st_End
4160 && strchr (sym_ptr->name, '\001') == 0)
4161 sym_ptr->ecoff_sym.asym.iss =
4162 add_string (&fil_ptr->strings,
4168 /* We now know the index of this symbol; fill in
4169 locations that have been waiting for that
4171 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4173 localsym_t *begin_ptr;
4177 begin_ptr = sym_ptr->begin_ptr;
4178 know (begin_ptr->sym_index != -1);
4179 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4180 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4181 sym_ptr->ecoff_sym.asym.iss =
4182 begin_ptr->ecoff_sym.asym.iss;
4184 begin_type = begin_ptr->ecoff_sym.asym.st;
4185 if (begin_type == st_File
4186 || begin_type == st_Block)
4188 begin_ptr->ecoff_sym.asym.index =
4189 isym - ifilesym + 1;
4190 (*swap_sym_out) (stdoutput,
4191 &begin_ptr->ecoff_sym.asym,
4194 + (begin_ptr->sym_index
4195 * external_sym_size)));
4199 know (begin_ptr->index_ptr != (aux_t *) NULL);
4200 begin_ptr->index_ptr->data.isym =
4201 isym - ifilesym + 1;
4204 /* The value of the symbol marking the end of a
4205 procedure is the size of the procedure. The
4206 value of the symbol marking the end of a
4207 block is the offset from the start of the
4208 procedure to the block. */
4209 if (begin_type == st_Proc
4210 || begin_type == st_StaticProc)
4212 know (as_sym != (symbolS *) NULL);
4213 know (begin_ptr->as_sym != (symbolS *) NULL);
4214 if (S_GET_SEGMENT (as_sym)
4215 != S_GET_SEGMENT (begin_ptr->as_sym))
4216 as_warn (_(".begin/.bend in different segments"));
4217 sym_ptr->ecoff_sym.asym.value =
4218 (S_GET_VALUE (as_sym)
4219 - S_GET_VALUE (begin_ptr->as_sym));
4221 /* If the size is odd, this is probably a
4222 mips16 function; force it to be even. */
4223 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4224 ++sym_ptr->ecoff_sym.asym.value;
4227 S_SET_SIZE (begin_ptr->as_sym,
4228 sym_ptr->ecoff_sym.asym.value);
4231 else if (begin_type == st_Block
4232 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4236 know (as_sym != (symbolS *) NULL);
4237 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4238 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4239 if (S_GET_SEGMENT (as_sym)
4240 != S_GET_SEGMENT (begin_sym))
4241 as_warn (_(".begin/.bend in different segments"));
4242 sym_ptr->ecoff_sym.asym.value =
4243 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4247 for (f = sym_ptr->forward_ref;
4248 f != (forward_t *) NULL;
4252 f->ifd_ptr->data.isym = fil_ptr->file_index;
4253 f->index_ptr->data.rndx.index = isym - ifilesym;
4258 if ((bfd_size_type)(*bufend - sym_out) < external_sym_size)
4259 sym_out = ecoff_add_bytes (buf, bufend,
4262 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4264 sym_out += external_sym_size;
4266 sym_ptr->sym_index = isym;
4268 if (sym_ptr->proc_ptr != (proc_t *) NULL
4269 && sym_ptr->proc_ptr->sym == sym_ptr)
4270 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4275 /* Record the local symbol index and file number in
4276 case this is an external symbol. Note that this
4277 destroys the asym.index field. */
4278 if (as_sym != (symbolS *) NULL
4279 && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr)
4281 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4282 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4284 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4285 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4287 /* Don't try to merge an FDR which has an
4288 external symbol attached to it. */
4289 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4290 fil_ptr->fdr.fMerge = 0;
4294 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4298 return offset + isym * external_sym_size;
4301 /* Swap out the procedure information. */
4303 static unsigned long
4304 ecoff_build_procs (backend, buf, bufend, offset)
4305 const struct ecoff_debug_swap *backend;
4308 unsigned long offset;
4310 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4311 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4312 = backend->swap_pdr_out;
4315 vlinks_t *file_link;
4317 pdr_out = *buf + offset;
4321 /* The procedures are stored by file. */
4322 for (file_link = file_desc.first;
4323 file_link != (vlinks_t *) NULL;
4324 file_link = file_link->next)
4330 if (file_link->next == (vlinks_t *) NULL)
4331 fil_cnt = file_desc.objects_last_page;
4333 fil_cnt = file_desc.objects_per_page;
4334 fil_ptr = file_link->datum->file;
4335 fil_end = fil_ptr + fil_cnt;
4336 for (; fil_ptr < fil_end; fil_ptr++)
4338 vlinks_t *proc_link;
4341 fil_ptr->fdr.ipdFirst = iproc;
4343 for (proc_link = fil_ptr->procs.first;
4344 proc_link != (vlinks_t *) NULL;
4345 proc_link = proc_link->next)
4351 if (proc_link->next == (vlinks_t *) NULL)
4352 prc_cnt = fil_ptr->procs.objects_last_page;
4354 prc_cnt = fil_ptr->procs.objects_per_page;
4355 proc_ptr = proc_link->datum->proc;
4356 proc_end = proc_ptr + prc_cnt;
4357 for (; proc_ptr < proc_end; proc_ptr++)
4362 adr_sym = proc_ptr->sym->as_sym;
4363 adr = (S_GET_VALUE (adr_sym)
4364 + bfd_get_section_vma (stdoutput,
4365 S_GET_SEGMENT (adr_sym)));
4368 /* This code used to force the adr of the very
4369 first fdr to be 0. However, the native tools
4370 don't do that, and I can't remember why it
4371 used to work that way, so I took it out. */
4372 fil_ptr->fdr.adr = adr;
4375 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4376 if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size)
4377 pdr_out = ecoff_add_bytes (buf, bufend,
4380 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4381 pdr_out += external_pdr_size;
4385 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4389 return offset + iproc * external_pdr_size;
4392 /* Swap out the aux information. */
4394 static unsigned long
4395 ecoff_build_aux (backend, buf, bufend, offset)
4396 const struct ecoff_debug_swap *backend;
4399 unsigned long offset;
4402 union aux_ext *aux_out;
4404 vlinks_t *file_link;
4406 bigendian = bfd_big_endian (stdoutput);
4408 aux_out = (union aux_ext *) (*buf + offset);
4412 /* The aux entries are stored by file. */
4413 for (file_link = file_desc.first;
4414 file_link != (vlinks_t *) NULL;
4415 file_link = file_link->next)
4421 if (file_link->next == (vlinks_t *) NULL)
4422 fil_cnt = file_desc.objects_last_page;
4424 fil_cnt = file_desc.objects_per_page;
4425 fil_ptr = file_link->datum->file;
4426 fil_end = fil_ptr + fil_cnt;
4427 for (; fil_ptr < fil_end; fil_ptr++)
4431 fil_ptr->fdr.fBigendian = bigendian;
4432 fil_ptr->fdr.iauxBase = iaux;
4433 for (aux_link = fil_ptr->aux_syms.first;
4434 aux_link != (vlinks_t *) NULL;
4435 aux_link = aux_link->next)
4441 if (aux_link->next == (vlinks_t *) NULL)
4442 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4444 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4445 aux_ptr = aux_link->datum->aux;
4446 aux_end = aux_ptr + aux_cnt;
4447 for (; aux_ptr < aux_end; aux_ptr++)
4449 if ((unsigned long) (*bufend - (char *) aux_out)
4450 < sizeof (union aux_ext))
4451 aux_out = ((union aux_ext *)
4452 ecoff_add_bytes (buf, bufend,
4454 sizeof (union aux_ext)));
4455 switch (aux_ptr->type)
4458 (*backend->swap_tir_out) (bigendian,
4463 (*backend->swap_rndx_out) (bigendian,
4464 &aux_ptr->data.rndx,
4468 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4472 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4476 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4480 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4484 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4488 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4497 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4501 return ecoff_padding_adjust (backend, buf, bufend,
4502 offset + iaux * sizeof (union aux_ext),
4506 /* Copy out the strings from a varray_t. This returns the number of
4507 bytes copied, rather than the new offset. */
4509 static unsigned long
4510 ecoff_build_strings (buf, bufend, offset, vp)
4513 unsigned long offset;
4520 str_out = *buf + offset;
4524 for (str_link = vp->first;
4525 str_link != (vlinks_t *) NULL;
4526 str_link = str_link->next)
4528 unsigned long str_cnt;
4530 if (str_link->next == (vlinks_t *) NULL)
4531 str_cnt = vp->objects_last_page;
4533 str_cnt = vp->objects_per_page;
4535 if ((unsigned long)(*bufend - str_out) < str_cnt)
4536 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4538 memcpy (str_out, str_link->datum->byte, str_cnt);
4546 /* Dump out the local strings. */
4548 static unsigned long
4549 ecoff_build_ss (backend, buf, bufend, offset)
4550 const struct ecoff_debug_swap *backend;
4553 unsigned long offset;
4556 vlinks_t *file_link;
4560 for (file_link = file_desc.first;
4561 file_link != (vlinks_t *) NULL;
4562 file_link = file_link->next)
4568 if (file_link->next == (vlinks_t *) NULL)
4569 fil_cnt = file_desc.objects_last_page;
4571 fil_cnt = file_desc.objects_per_page;
4572 fil_ptr = file_link->datum->file;
4573 fil_end = fil_ptr + fil_cnt;
4574 for (; fil_ptr < fil_end; fil_ptr++)
4578 fil_ptr->fdr.issBase = iss;
4579 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4581 fil_ptr->fdr.cbSs = ss_cnt;
4586 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4590 /* Swap out the file descriptors. */
4592 static unsigned long
4593 ecoff_build_fdr (backend, buf, bufend, offset)
4594 const struct ecoff_debug_swap *backend;
4597 unsigned long offset;
4599 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4600 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4601 = backend->swap_fdr_out;
4604 vlinks_t *file_link;
4608 fdr_out = *buf + offset;
4610 for (file_link = file_desc.first;
4611 file_link != (vlinks_t *) NULL;
4612 file_link = file_link->next)
4618 if (file_link->next == (vlinks_t *) NULL)
4619 fil_cnt = file_desc.objects_last_page;
4621 fil_cnt = file_desc.objects_per_page;
4622 fil_ptr = file_link->datum->file;
4623 fil_end = fil_ptr + fil_cnt;
4624 for (; fil_ptr < fil_end; fil_ptr++)
4626 if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size)
4627 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4629 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4630 fdr_out += external_fdr_size;
4635 return offset + ifile * external_fdr_size;
4638 /* Set up the external symbols. These are supposed to be handled by
4639 the backend. This routine just gets the right information and
4640 calls a backend function to deal with it. */
4645 register symbolS *sym;
4647 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4649 if (symbol_get_obj (sym)->ecoff_symbol == NULL)
4652 /* If this is a local symbol, then force the fields to zero. */
4653 if (! S_IS_EXTERNAL (sym)
4654 && ! S_IS_WEAK (sym)
4655 && S_IS_DEFINED (sym))
4657 struct localsym *lsym;
4659 lsym = symbol_get_obj (sym)->ecoff_symbol;
4660 lsym->ecoff_sym.asym.value = 0;
4661 lsym->ecoff_sym.asym.st = (int) st_Nil;
4662 lsym->ecoff_sym.asym.sc = (int) sc_Nil;
4663 lsym->ecoff_sym.asym.index = indexNil;
4666 obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym);
4670 /* Build the ECOFF debugging information. */
4673 ecoff_build_debug (hdr, bufp, backend)
4676 const struct ecoff_debug_swap *backend;
4678 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4683 efdr_t *hold_file_ptr;
4684 proc_t *hold_proc_ptr;
4688 unsigned long offset;
4690 /* Make sure we have a file. */
4691 if (first_file == (efdr_t *) NULL)
4692 add_file ((const char *) NULL, 0, 1);
4694 /* Handle any top level tags. */
4695 for (ptag = top_tag_head->first_tag;
4696 ptag != (tag_t *) NULL;
4699 if (ptag->forward_ref != (forward_t *) NULL)
4700 add_unknown_tag (ptag);
4702 ptag_next = ptag->same_block;
4703 ptag->hash_ptr->tag_ptr = ptag->same_name;
4707 free_thead (top_tag_head);
4709 /* Look through the symbols. Add debugging information for each
4710 symbol that has not already received it. */
4711 hold_file_ptr = cur_file_ptr;
4712 hold_proc_ptr = cur_proc_ptr;
4713 cur_proc_ptr = (proc_t *) NULL;
4714 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4716 if (symbol_get_obj (sym)->ecoff_symbol != NULL
4717 || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL
4718 || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0)
4721 cur_file_ptr = symbol_get_obj (sym)->ecoff_file;
4722 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4723 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4725 cur_proc_ptr = hold_proc_ptr;
4726 cur_file_ptr = hold_file_ptr;
4728 /* Output an ending symbol for all the files. We have to do this
4729 here for the last file, so we may as well do it for all of the
4732 for (fil_ptr = first_file;
4733 fil_ptr != (efdr_t *) NULL;
4734 fil_ptr = fil_ptr->next_file)
4736 cur_file_ptr = fil_ptr;
4737 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4738 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4740 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4741 if (! end_warning && ! cur_file_ptr->fake)
4743 as_warn (_("Missing .end or .bend at end of file"));
4747 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4748 (void) add_ecoff_symbol ((const char *) NULL,
4756 /* Build the symbolic information. */
4758 buf = xmalloc (PAGE_SIZE);
4759 bufend = buf + PAGE_SIZE;
4761 /* Build the line number information. */
4762 hdr->cbLineOffset = offset;
4763 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4765 hdr->cbLine = offset - hdr->cbLineOffset;
4767 /* We don't use dense numbers at all. */
4769 hdr->cbDnOffset = 0;
4771 /* We can't build the PDR table until we have built the symbols,
4772 because a PDR contains a symbol index. However, we set aside
4773 space at this point. */
4774 hdr->ipdMax = proc_cnt;
4775 hdr->cbPdOffset = offset;
4776 if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size)
4777 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4778 proc_cnt * external_pdr_size);
4779 offset += proc_cnt * external_pdr_size;
4781 /* Build the local symbols. */
4782 hdr->cbSymOffset = offset;
4783 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4784 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4786 /* Building the symbols initializes the symbol index in the PDR's.
4787 Now we can swap out the PDR's. */
4788 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4790 /* We don't use optimization symbols. */
4792 hdr->cbOptOffset = 0;
4794 /* Swap out the auxiliary type information. */
4795 hdr->cbAuxOffset = offset;
4796 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4797 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4799 /* Copy out the local strings. */
4800 hdr->cbSsOffset = offset;
4801 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4802 hdr->issMax = offset - hdr->cbSsOffset;
4804 /* We don't use relative file descriptors. */
4806 hdr->cbRfdOffset = 0;
4808 /* Swap out the file descriptors. */
4809 hdr->cbFdOffset = offset;
4810 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4811 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4813 /* Set up the external symbols, which are handled by the BFD back
4816 hdr->cbSsExtOffset = 0;
4818 hdr->cbExtOffset = 0;
4821 know ((offset & (backend->debug_align - 1)) == 0);
4823 /* FIXME: This value should be determined from the .verstamp directive,
4824 with reasonable defaults in config files. */
4826 hdr->vstamp = 0x030b;
4828 hdr->vstamp = 0x020b;
4835 /* Allocate a cluster of pages. */
4837 #ifndef MALLOC_CHECK
4840 allocate_cluster (npages)
4841 unsigned long npages;
4843 register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4847 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4850 memset (value, 0, npages * PAGE_USIZE);
4855 static page_type *cluster_ptr = NULL;
4856 static unsigned long pages_left = 0;
4858 #endif /* MALLOC_CHECK */
4860 /* Allocate one page (which is initialized to 0). */
4865 #ifndef MALLOC_CHECK
4867 if (pages_left == 0)
4869 pages_left = MAX_CLUSTER_PAGES;
4870 cluster_ptr = allocate_cluster (pages_left);
4874 return cluster_ptr++;
4876 #else /* MALLOC_CHECK */
4880 ptr = xmalloc (PAGE_USIZE);
4881 memset (ptr, 0, PAGE_USIZE);
4884 #endif /* MALLOC_CHECK */
4887 /* Allocate scoping information. */
4892 register scope_t *ptr;
4893 static scope_t initial_scope;
4895 #ifndef MALLOC_CHECK
4897 ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4898 if (ptr != (scope_t *) NULL)
4899 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free;
4902 register int unallocated = alloc_counts[(int) alloc_type_scope].unallocated;
4903 register page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page;
4905 if (unallocated == 0)
4907 unallocated = PAGE_SIZE / sizeof (scope_t);
4908 alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page ();
4909 alloc_counts[(int) alloc_type_scope].total_pages++;
4912 ptr = &cur_page->scope[--unallocated];
4913 alloc_counts[(int) alloc_type_scope].unallocated = unallocated;
4918 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4922 alloc_counts[(int) alloc_type_scope].total_alloc++;
4923 *ptr = initial_scope;
4927 /* Free scoping information. */
4933 alloc_counts[(int) alloc_type_scope].total_free++;
4935 #ifndef MALLOC_CHECK
4936 ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4937 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr;
4943 /* Allocate links for pages in a virtual array. */
4948 register vlinks_t *ptr;
4949 static vlinks_t initial_vlinks;
4951 #ifndef MALLOC_CHECK
4953 register int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated;
4954 register page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page;
4956 if (unallocated == 0)
4958 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4959 alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4960 alloc_counts[(int) alloc_type_vlinks].total_pages++;
4963 ptr = &cur_page->vlinks[--unallocated];
4964 alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated;
4968 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4972 alloc_counts[(int) alloc_type_vlinks].total_alloc++;
4973 *ptr = initial_vlinks;
4977 /* Allocate string hash buckets. */
4982 register shash_t *ptr;
4983 static shash_t initial_shash;
4985 #ifndef MALLOC_CHECK
4987 register int unallocated = alloc_counts[(int) alloc_type_shash].unallocated;
4988 register page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page;
4990 if (unallocated == 0)
4992 unallocated = PAGE_SIZE / sizeof (shash_t);
4993 alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page ();
4994 alloc_counts[(int) alloc_type_shash].total_pages++;
4997 ptr = &cur_page->shash[--unallocated];
4998 alloc_counts[(int) alloc_type_shash].unallocated = unallocated;
5002 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5006 alloc_counts[(int) alloc_type_shash].total_alloc++;
5007 *ptr = initial_shash;
5011 /* Allocate type hash buckets. */
5016 register thash_t *ptr;
5017 static thash_t initial_thash;
5019 #ifndef MALLOC_CHECK
5021 register int unallocated = alloc_counts[(int) alloc_type_thash].unallocated;
5022 register page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page;
5024 if (unallocated == 0)
5026 unallocated = PAGE_SIZE / sizeof (thash_t);
5027 alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page ();
5028 alloc_counts[(int) alloc_type_thash].total_pages++;
5031 ptr = &cur_page->thash[--unallocated];
5032 alloc_counts[(int) alloc_type_thash].unallocated = unallocated;
5036 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5040 alloc_counts[(int) alloc_type_thash].total_alloc++;
5041 *ptr = initial_thash;
5045 /* Allocate structure, union, or enum tag information. */
5050 register tag_t *ptr;
5051 static tag_t initial_tag;
5053 #ifndef MALLOC_CHECK
5055 ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5056 if (ptr != (tag_t *) NULL)
5057 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free;
5060 register int unallocated = alloc_counts[(int) alloc_type_tag].unallocated;
5061 register page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page;
5063 if (unallocated == 0)
5065 unallocated = PAGE_SIZE / sizeof (tag_t);
5066 alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page ();
5067 alloc_counts[(int) alloc_type_tag].total_pages++;
5070 ptr = &cur_page->tag[--unallocated];
5071 alloc_counts[(int) alloc_type_tag].unallocated = unallocated;
5076 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5080 alloc_counts[(int) alloc_type_tag].total_alloc++;
5085 /* Free scoping information. */
5091 alloc_counts[(int) alloc_type_tag].total_free++;
5093 #ifndef MALLOC_CHECK
5094 ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5095 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr;
5101 /* Allocate forward reference to a yet unknown tag. */
5106 register forward_t *ptr;
5107 static forward_t initial_forward;
5109 #ifndef MALLOC_CHECK
5111 register int unallocated = alloc_counts[(int) alloc_type_forward].unallocated;
5112 register page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page;
5114 if (unallocated == 0)
5116 unallocated = PAGE_SIZE / sizeof (forward_t);
5117 alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page ();
5118 alloc_counts[(int) alloc_type_forward].total_pages++;
5121 ptr = &cur_page->forward[--unallocated];
5122 alloc_counts[(int) alloc_type_forward].unallocated = unallocated;
5126 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5130 alloc_counts[(int) alloc_type_forward].total_alloc++;
5131 *ptr = initial_forward;
5135 /* Allocate head of type hash list. */
5140 register thead_t *ptr;
5141 static thead_t initial_thead;
5143 #ifndef MALLOC_CHECK
5145 ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5146 if (ptr != (thead_t *) NULL)
5147 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free;
5150 register int unallocated = alloc_counts[(int) alloc_type_thead].unallocated;
5151 register page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page;
5153 if (unallocated == 0)
5155 unallocated = PAGE_SIZE / sizeof (thead_t);
5156 alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page ();
5157 alloc_counts[(int) alloc_type_thead].total_pages++;
5160 ptr = &cur_page->thead[--unallocated];
5161 alloc_counts[(int) alloc_type_thead].unallocated = unallocated;
5166 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5170 alloc_counts[(int) alloc_type_thead].total_alloc++;
5171 *ptr = initial_thead;
5175 /* Free scoping information. */
5181 alloc_counts[(int) alloc_type_thead].total_free++;
5183 #ifndef MALLOC_CHECK
5184 ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5185 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr;
5191 static lineno_list_t *
5192 allocate_lineno_list ()
5194 register lineno_list_t *ptr;
5195 static lineno_list_t initial_lineno_list;
5197 #ifndef MALLOC_CHECK
5199 register int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated;
5200 register page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page;
5202 if (unallocated == 0)
5204 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5205 alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page ();
5206 alloc_counts[(int) alloc_type_lineno].total_pages++;
5209 ptr = &cur_page->lineno[--unallocated];
5210 alloc_counts[(int) alloc_type_lineno].unallocated = unallocated;
5214 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5218 alloc_counts[(int) alloc_type_lineno].total_alloc++;
5219 *ptr = initial_lineno_list;
5224 ecoff_set_gp_prolog_size (sz)
5227 if (cur_proc_ptr == 0)
5230 cur_proc_ptr->pdr.gp_prologue = sz;
5231 if (cur_proc_ptr->pdr.gp_prologue != sz)
5233 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5234 cur_proc_ptr->pdr.gp_prologue = 0;
5237 cur_proc_ptr->pdr.gp_used = 1;
5241 ecoff_no_current_file ()
5243 return cur_file_ptr == (efdr_t *) NULL;
5247 ecoff_generate_asm_lineno ()
5249 unsigned int lineno;
5251 lineno_list_t *list;
5253 as_where (&filename, &lineno);
5255 if (current_stabs_filename == (char *) NULL
5256 || strcmp (current_stabs_filename, filename))
5257 add_file (filename, 0, 1);
5259 list = allocate_lineno_list ();
5261 list->next = (lineno_list_t *) NULL;
5262 list->file = cur_file_ptr;
5263 list->proc = cur_proc_ptr;
5264 list->frag = frag_now;
5265 list->paddr = frag_now_fix ();
5266 list->lineno = lineno;
5268 /* We don't want to merge files which have line numbers. */
5269 cur_file_ptr->fdr.fMerge = 0;
5271 /* A .loc directive will sometimes appear before a .ent directive,
5272 which means that cur_proc_ptr will be NULL here. Arrange to
5274 if (cur_proc_ptr == (proc_t *) NULL)
5278 pl = &noproc_lineno;
5279 while (*pl != (lineno_list_t *) NULL)
5286 *last_lineno_ptr = list;
5287 last_lineno_ptr = &list->next;
5294 ecoff_generate_asm_lineno ()
5298 #endif /* ECOFF_DEBUGGING */