1 /* ECOFF debugging support.
2 Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
5 good deal of it comes directly from mips-tfile.c, by Michael
6 Meissner <meissner@osf.org>.
8 This file is part of GAS.
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to the Free
22 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
27 /* This file is compiled conditionally for those targets which use
28 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
31 #ifdef ECOFF_DEBUGGING
33 #include "coff/internal.h"
34 #include "coff/symconst.h"
36 #include "aout/stab_gnu.h"
40 /* Why isn't this in coff/sym.h? */
41 #define ST_RFDESCAPE 0xfff
43 /* This file constructs the information used by the ECOFF debugging
44 format. It just builds a large block of data.
46 We support both ECOFF style debugging and stabs debugging (the
47 stabs symbols are encapsulated in ECOFF symbols). This should let
48 us handle anything the compiler might throw at us. */
50 /* Here is a brief description of the MIPS ECOFF symbol table, by
51 Michael Meissner. The MIPS symbol table has the following pieces:
57 +-- Dense number table
65 +-- Relative file descriptors
77 The symbolic header points to each of the other tables, and also
78 contains the number of entries. It also contains a magic number
79 and MIPS compiler version number, such as 2.0.
81 The auxiliary table is a series of 32 bit integers, that are
82 referenced as needed from the local symbol table. Unlike standard
83 COFF, the aux. information does not follow the symbol that uses
84 it, but rather is a separate table. In theory, this would allow
85 the MIPS compilers to collapse duplicate aux. entries, but I've not
86 noticed this happening with the 1.31 compiler suite. The different
87 types of aux. entries are:
89 1) dnLow: Low bound on array dimension.
91 2) dnHigh: High bound on array dimension.
93 3) isym: Index to the local symbol which is the start of the
94 function for the end of function first aux. entry.
96 4) width: Width of structures and bitfields.
98 5) count: Count of ranges for variant part.
100 6) rndx: A relative index into the symbol table. The relative
101 index field has two parts: rfd which is a pointer into the
102 relative file index table or ST_RFDESCAPE which says the next
103 aux. entry is the file number, and index: which is the pointer
104 into the local symbol within a given file table. This is for
105 things like references to types defined in another file.
107 7) Type information: This is like the COFF type bits, except it
108 is 32 bits instead of 16; they still have room to add new
109 basic types; and they can handle more than 6 levels of array,
110 pointer, function, etc. Each type information field contains
111 the following structure members:
113 a) fBitfield: a bit that says this is a bitfield, and the
114 size in bits follows as the next aux. entry.
116 b) continued: a bit that says the next aux. entry is a
117 continuation of the current type information (in case
118 there are more than 6 levels of array/ptr/function).
120 c) bt: an integer containing the base type before adding
121 array, pointer, function, etc. qualifiers. The
122 current base types that I have documentation for are:
125 btAdr -- address - integer same size as ptr
127 btUChar -- unsigned character
129 btUShort -- unsigned short
131 btUInt -- unsigned int
133 btULong -- unsigned long
134 btFloat -- float (real)
135 btDouble -- Double (real)
136 btStruct -- Structure (Record)
137 btUnion -- Union (variant)
139 btTypedef -- defined via a typedef isymRef
140 btRange -- subrange of int
142 btComplex -- fortran complex
143 btDComplex -- fortran double complex
144 btIndirect -- forward or unnamed typedef
145 btFixedDec -- Fixed Decimal
146 btFloatDec -- Float Decimal
147 btString -- Varying Length Character String
148 btBit -- Aligned Bit String
150 btVoid -- Void (MIPS cc revision >= 2.00)
152 d) tq0 - tq5: type qualifier fields as needed. The
153 current type qualifier fields I have documentation for
156 tqNil -- no more qualifiers
160 tqFar -- 8086 far pointers
164 The dense number table is used in the front ends, and disappears by
165 the time the .o is created.
167 With the 1.31 compiler suite, the optimization symbols don't seem
168 to be used as far as I can tell.
170 The linker is the first entity that creates the relative file
171 descriptor table, and I believe it is used so that the individual
172 file table pointers don't have to be rewritten when the objects are
173 merged together into the program file.
175 Unlike COFF, the basic symbol & string tables are split into
176 external and local symbols/strings. The relocation information
177 only goes off of the external symbol table, and the debug
178 information only goes off of the internal symbol table. The
179 external symbols can have links to an appropriate file index and
180 symbol within the file to give it the appropriate type information.
181 Because of this, the external symbols are actually larger than the
182 internal symbols (to contain the link information), and contain the
183 local symbol structure as a member, though this member is not the
184 first member of the external symbol structure (!). I suspect this
185 split is to make strip easier to deal with.
187 Each file table has offsets for where the line numbers, local
188 strings, local symbols, and procedure table starts from within the
189 global tables, and the indexs are reset to 0 for each of those
192 The procedure table contains the binary equivalents of the .ent
193 (start of the function address), .frame (what register is the
194 virtual frame pointer, constant offset from the register to obtain
195 the VFP, and what register holds the return address), .mask/.fmask
196 (bitmask of saved registers, and where the first register is stored
197 relative to the VFP) assembler directives. It also contains the
198 low and high bounds of the line numbers if debugging is turned on.
200 The line number table is a compressed form of the normal COFF line
201 table. Each line number entry is either 1 or 3 bytes long, and
202 contains a signed delta from the previous line, and an unsigned
203 count of the number of instructions this statement takes.
205 The local symbol table contains the following fields:
207 1) iss: index to the local string table giving the name of the
210 2) value: value of the symbol (address, register number, etc.).
212 3) st: symbol type. The current symbol types are:
214 stNil -- Nuthin' special
215 stGlobal -- external symbol
217 stParam -- procedure argument
218 stLocal -- local variable
220 stProc -- External Procedure
221 stBlock -- beginning of block
222 stEnd -- end (of anything)
223 stMember -- member (of anything)
224 stTypedef -- type definition
226 stRegReloc -- register relocation
227 stForward -- forwarding address
228 stStaticProc -- Static procedure
231 4) sc: storage class. The current storage classes are:
233 scText -- text symbol
234 scData -- initialized data symbol
235 scBss -- un-initialized data symbol
236 scRegister -- value of symbol is register number
237 scAbs -- value of symbol is absolute
238 scUndefined -- who knows?
239 scCdbLocal -- variable's value is IN se->va.??
240 scBits -- this is a bit field
241 scCdbSystem -- value is IN debugger's address space
242 scRegImage -- register value saved on stack
243 scInfo -- symbol contains debugger information
244 scUserStruct -- addr in struct user for current process
245 scSData -- load time only small data
246 scSBss -- load time only small common
247 scRData -- load time only read only data
248 scVar -- Var parameter (fortranpascal)
249 scCommon -- common variable
250 scSCommon -- small common
251 scVarRegister -- Var parameter in a register
252 scVariant -- Variant record
253 scSUndefined -- small undefined(external) data
254 scInit -- .init section symbol
256 5) index: pointer to a local symbol or aux. entry.
260 For the following program:
265 printf("Hello World!\n");
269 Mips-tdump produces the following information:
274 timestamp 645311799, Wed Jun 13 17:16:39 1990
275 symbolic header offset 284
276 symbolic header size 96
280 Symbolic header, magic number = 0x7009, vstamp = 1.31:
282 Info Offset Number Bytes
283 ==== ====== ====== =====
285 Line numbers 380 4 4 [13]
287 Procedures Tables 384 1 52
288 Local Symbols 436 16 192
289 Optimization Symbols 0 0 0
290 Auxiliary Symbols 628 39 156
291 Local Strings 784 80 80
292 External Strings 864 144 144
293 File Tables 1008 2 144
295 External Symbols 1152 20 320
299 Name index = 1 Readin = No
300 Merge = No Endian = LITTLE
301 Debug level = G2 Language = C
304 Info Start Number Size Offset
305 ==== ===== ====== ==== ======
306 Local strings 0 15 15 784
307 Local symbols 0 6 72 436
308 Line numbers 0 13 13 380
309 Optimization symbols 0 0 0 0
310 Procedures 0 1 52 384
311 Auxiliary symbols 0 14 56 628
312 Relative Files 0 0 0 0
314 There are 6 local symbols, starting at 436
316 Symbol# 0: "hello2.c"
319 Storage class = Text Index = 6
320 Symbol type = File Value = 0
326 Storage class = Text Index = 12
327 Symbol type = Proc Value = 0
332 Storage class = Text Index = 4
333 Symbol type = Block Value = 8
338 Storage class = Text Index = 2
339 Symbol type = End Value = 28
344 Storage class = Text Index = 1
345 Symbol type = End Value = 52
347 Symbol# 5: "hello2.c"
350 Storage class = Text Index = 0
351 Symbol type = End Value = 0
353 There are 14 auxiliary table entries, starting at 628.
355 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
356 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
357 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
358 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
359 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
360 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
361 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
362 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
363 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
364 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
365 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
366 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
367 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
368 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
370 There are 1 procedure descriptor entries, starting at 0.
372 Procedure descriptor 0:
373 Name index = 10 Name = "main"
374 .mask 0x80000000,-4 .fmask 0x00000000,0
376 Opt. start = -1 Symbols start = 1
377 First line # = 3 Last line # = 6
378 Line Offset = 0 Address = 0x00000000
380 There are 4 bytes holding line numbers, starting at 380.
381 Line 3, delta 0, count 2
382 Line 4, delta 1, count 3
383 Line 5, delta 1, count 2
384 Line 6, delta 1, count 6
386 File #1, "/usr/include/stdio.h"
388 Name index = 1 Readin = No
389 Merge = Yes Endian = LITTLE
390 Debug level = G2 Language = C
393 Info Start Number Size Offset
394 ==== ===== ====== ==== ======
395 Local strings 15 65 65 799
396 Local symbols 6 10 120 508
397 Line numbers 0 0 0 380
398 Optimization symbols 0 0 0 0
400 Auxiliary symbols 14 25 100 684
401 Relative Files 0 0 0 0
403 There are 10 local symbols, starting at 442
405 Symbol# 0: "/usr/include/stdio.h"
408 Storage class = Text Index = 10
409 Symbol type = File Value = 0
414 Storage class = Info Index = 9
415 Symbol type = Block Value = 20
420 Storage class = Info Index = 4
421 Symbol type = Member Value = 0
426 Storage class = Info Index = 15
427 Symbol type = Member Value = 32
432 Storage class = Info Index = 16
433 Symbol type = Member Value = 64
438 Storage class = Info Index = 4
439 Symbol type = Member Value = 96
444 Storage class = Info Index = 3
445 Symbol type = Member Value = 128
450 Storage class = Info Index = 2
451 Symbol type = Member Value = 144
456 Storage class = Info Index = 1
457 Symbol type = End Value = 0
459 Symbol# 9: "/usr/include/stdio.h"
462 Storage class = Text Index = 0
463 Symbol type = End Value = 0
465 There are 25 auxiliary table entries, starting at 642.
467 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
468 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
470 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
471 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
472 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
473 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
474 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
475 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
476 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
477 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
478 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
493 There are 0 procedure descriptor entries, starting at 1.
495 There are 20 external symbols, starting at 1152
498 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
499 String index = 0 Ifd = 1
500 Storage class = Nil Index = 17
501 Symbol type = Global Value = 60
504 String index = 5 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
509 String index = 11 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
514 String index = 18 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
519 String index = 26 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
524 String index = 32 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
529 String index = 40 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
534 String index = 46 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
539 String index = 53 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
543 Symbol# 9: "setbuffer"
544 String index = 60 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
548 Symbol# 10: "setlinebuf"
549 String index = 70 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
554 String index = 81 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
559 String index = 87 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
563 Symbol# 13: "ctermid"
564 String index = 92 Ifd = 1
565 Storage class = Nil Index = 1048575
566 Symbol type = Proc Value = 0
568 Symbol# 14: "cuserid"
569 String index = 100 Ifd = 1
570 Storage class = Nil Index = 1048575
571 Symbol type = Proc Value = 0
573 Symbol# 15: "tempnam"
574 String index = 108 Ifd = 1
575 Storage class = Nil Index = 1048575
576 Symbol type = Proc Value = 0
579 String index = 116 Ifd = 1
580 Storage class = Nil Index = 1048575
581 Symbol type = Proc Value = 0
583 Symbol# 17: "sprintf"
584 String index = 123 Ifd = 1
585 Storage class = Nil Index = 1048575
586 Symbol type = Proc Value = 0
590 String index = 131 Ifd = 0
591 Storage class = Text Index = 1
592 Symbol type = Proc Value = 0
595 String index = 136 Ifd = 0
596 Storage class = Undefined Index = 1048575
597 Symbol type = Proc Value = 0
599 The following auxiliary table entries were unused:
603 #3 16 0x00000010 short
605 #5 32 0x00000020 long
606 #6 40 0x00000028 float
607 #7 44 0x0000002c double
608 #8 12 0x0000000c unsigned char
609 #9 20 0x00000014 unsigned short
610 #10 28 0x0000001c unsigned int
611 #11 36 0x00000024 unsigned long
612 #14 0 0x00000000 void
613 #15 24 0x00000018 int
614 #19 32 0x00000020 long
615 #20 40 0x00000028 float
616 #21 44 0x0000002c double
617 #22 12 0x0000000c unsigned char
618 #23 20 0x00000014 unsigned short
619 #24 28 0x0000001c unsigned int
620 #25 36 0x00000024 unsigned long
621 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
624 /* Redefinition of of storage classes as an enumeration for better
628 sc_Nil = scNil, /* no storage class */
629 sc_Text = scText, /* text symbol */
630 sc_Data = scData, /* initialized data symbol */
631 sc_Bss = scBss, /* un-initialized data symbol */
632 sc_Register = scRegister, /* value of symbol is register number */
633 sc_Abs = scAbs, /* value of symbol is absolute */
634 sc_Undefined = scUndefined, /* who knows? */
635 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
636 sc_Bits = scBits, /* this is a bit field */
637 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
638 sc_RegImage = scRegImage, /* register value saved on stack */
639 sc_Info = scInfo, /* symbol contains debugger information */
640 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
641 sc_SData = scSData, /* load time only small data */
642 sc_SBss = scSBss, /* load time only small common */
643 sc_RData = scRData, /* load time only read only data */
644 sc_Var = scVar, /* Var parameter (fortran,pascal) */
645 sc_Common = scCommon, /* common variable */
646 sc_SCommon = scSCommon, /* small common */
647 sc_VarRegister = scVarRegister, /* Var parameter in a register */
648 sc_Variant = scVariant, /* Variant record */
649 sc_SUndefined = scSUndefined, /* small undefined(external) data */
650 sc_Init = scInit, /* .init section symbol */
651 sc_Max = scMax /* Max storage class+1 */
654 /* Redefinition of symbol type. */
657 st_Nil = stNil, /* Nuthin' special */
658 st_Global = stGlobal, /* external symbol */
659 st_Static = stStatic, /* static */
660 st_Param = stParam, /* procedure argument */
661 st_Local = stLocal, /* local variable */
662 st_Label = stLabel, /* label */
663 st_Proc = stProc, /* " " Procedure */
664 st_Block = stBlock, /* beginning of block */
665 st_End = stEnd, /* end (of anything) */
666 st_Member = stMember, /* member (of anything - struct/union/enum */
667 st_Typedef = stTypedef, /* type definition */
668 st_File = stFile, /* file name */
669 st_RegReloc = stRegReloc, /* register relocation */
670 st_Forward = stForward, /* forwarding address */
671 st_StaticProc = stStaticProc, /* load time only static procs */
672 st_Constant = stConstant, /* const */
673 st_Str = stStr, /* string */
674 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
675 st_Expr = stExpr, /* 2+2 vs. 4 */
676 st_Type = stType, /* post-coercion SER */
677 st_Max = stMax /* max type+1 */
680 /* Redefinition of type qualifiers. */
683 tq_Nil = tqNil, /* bt is what you see */
684 tq_Ptr = tqPtr, /* pointer */
685 tq_Proc = tqProc, /* procedure */
686 tq_Array = tqArray, /* duh */
687 tq_Far = tqFar, /* longer addressing - 8086/8 land */
688 tq_Vol = tqVol, /* volatile */
689 tq_Max = tqMax /* Max type qualifier+1 */
692 /* Redefinition of basic types. */
695 bt_Nil = btNil, /* undefined */
696 bt_Adr = btAdr, /* address - integer same size as pointer */
697 bt_Char = btChar, /* character */
698 bt_UChar = btUChar, /* unsigned character */
699 bt_Short = btShort, /* short */
700 bt_UShort = btUShort, /* unsigned short */
701 bt_Int = btInt, /* int */
702 bt_UInt = btUInt, /* unsigned int */
703 bt_Long = btLong, /* long */
704 bt_ULong = btULong, /* unsigned long */
705 bt_Float = btFloat, /* float (real) */
706 bt_Double = btDouble, /* Double (real) */
707 bt_Struct = btStruct, /* Structure (Record) */
708 bt_Union = btUnion, /* Union (variant) */
709 bt_Enum = btEnum, /* Enumerated */
710 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
711 bt_Range = btRange, /* subrange of int */
712 bt_Set = btSet, /* pascal sets */
713 bt_Complex = btComplex, /* fortran complex */
714 bt_DComplex = btDComplex, /* fortran double complex */
715 bt_Indirect = btIndirect, /* forward or unnamed typedef */
716 bt_FixedDec = btFixedDec, /* Fixed Decimal */
717 bt_FloatDec = btFloatDec, /* Float Decimal */
718 bt_String = btString, /* Varying Length Character String */
719 bt_Bit = btBit, /* Aligned Bit String */
720 bt_Picture = btPicture, /* Picture */
721 bt_Void = btVoid, /* Void */
722 bt_Max = btMax /* Max basic type+1 */
727 /* States for whether to hash type or not. */
728 typedef enum hash_state {
729 hash_no = 0, /* don't hash type */
730 hash_yes = 1, /* ok to hash type, or use previous hash */
731 hash_record = 2 /* ok to record hash, but don't use prev. */
734 /* Types of different sized allocation requests. */
736 alloc_type_none, /* dummy value */
737 alloc_type_scope, /* nested scopes linked list */
738 alloc_type_vlinks, /* glue linking pages in varray */
739 alloc_type_shash, /* string hash element */
740 alloc_type_thash, /* type hash element */
741 alloc_type_tag, /* struct/union/tag element */
742 alloc_type_forward, /* element to hold unknown tag */
743 alloc_type_thead, /* head of type hash list */
744 alloc_type_varray, /* general varray allocation */
745 alloc_type_lineno, /* line number list */
746 alloc_type_last /* last+1 element for array bounds */
749 /* Types of auxiliary type information. */
751 aux_tir, /* TIR type information */
752 aux_rndx, /* relative index into symbol table */
753 aux_dnLow, /* low dimension */
754 aux_dnHigh, /* high dimension */
755 aux_isym, /* symbol table index (end of proc) */
756 aux_iss, /* index into string space (not used) */
757 aux_width, /* width for non-default sized struc fields */
758 aux_count /* count of ranges for variant arm */
761 /* Structures to provide n-number of virtual arrays, each of which can
762 grow linearly, and which are written in the object file as
763 sequential pages. On systems with a BSD malloc, the
764 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
765 malloc adds it's overhead, and rounds up to the next power of 2.
766 Pages are linked together via a linked list.
768 If PAGE_SIZE is > 4096, the string length in the shash_t structure
769 can't be represented (assuming there are strings > 4096 bytes). */
772 #define PAGE_SIZE 4096 /* size of varray pages */
775 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
778 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
779 #define MAX_CLUSTER_PAGES 63
782 /* Linked list connecting separate page allocations. */
783 typedef struct vlinks {
784 struct vlinks *prev; /* previous set of pages */
785 struct vlinks *next; /* next set of pages */
786 union page *datum; /* start of page */
787 unsigned long start_index; /* starting index # of page */
791 /* Virtual array header. */
792 typedef struct varray {
793 vlinks_t *first; /* first page link */
794 vlinks_t *last; /* last page link */
795 unsigned long num_allocated; /* # objects allocated */
796 unsigned short object_size; /* size in bytes of each object */
797 unsigned short objects_per_page; /* # objects that can fit on a page */
798 unsigned short objects_last_page; /* # objects allocated on last page */
802 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
804 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
807 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
808 (vlinks_t *)0, /* first */ \
809 (vlinks_t *)0, /* last */ \
810 0, /* num_allocated */ \
811 sizeof (type), /* object_size */ \
812 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
813 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
817 /* Master type for indexes within the symbol table. */
818 typedef unsigned long symint_t;
821 /* Linked list support for nested scopes (file, block, structure, etc.). */
822 typedef struct scope {
823 struct scope *prev; /* previous scope level */
824 struct scope *free; /* free list pointer */
825 struct localsym *lsym; /* pointer to local symbol node */
826 st_t type; /* type of the node */
830 /* For a local symbol we store a gas symbol as well as the debugging
831 information we generate. The gas symbol will be NULL if this is
832 only a debugging symbol. */
833 typedef struct localsym {
834 const char *name; /* symbol name */
835 symbolS *as_sym; /* symbol as seen by gas */
836 bfd_vma addend; /* addend to as_sym value */
837 struct efdr *file_ptr; /* file pointer */
838 struct ecoff_proc *proc_ptr; /* proc pointer */
839 struct localsym *begin_ptr; /* symbol at start of block */
840 struct ecoff_aux *index_ptr; /* index value to be filled in */
841 struct forward *forward_ref; /* forward references to this symbol */
842 long sym_index; /* final symbol index */
843 EXTR ecoff_sym; /* ECOFF debugging symbol */
847 /* For aux information we keep the type and the data. */
848 typedef struct ecoff_aux {
849 enum aux_type type; /* aux type */
850 AUXU data; /* aux data */
853 /* For a procedure we store the gas symbol as well as the PDR
854 debugging information. */
855 typedef struct ecoff_proc {
856 localsym_t *sym; /* associated symbol */
857 PDR pdr; /* ECOFF debugging info */
860 /* Number of proc_t structures allocated. */
861 static unsigned long proc_cnt;
864 /* Forward reference list for tags referenced, but not yet defined. */
865 typedef struct forward {
866 struct forward *next; /* next forward reference */
867 struct forward *free; /* free list pointer */
868 aux_t *ifd_ptr; /* pointer to store file index */
869 aux_t *index_ptr; /* pointer to store symbol index */
873 /* Linked list support for tags. The first tag in the list is always
874 the current tag for that block. */
876 struct tag *free; /* free list pointer */
877 struct shash *hash_ptr; /* pointer to the hash table head */
878 struct tag *same_name; /* tag with same name in outer scope */
879 struct tag *same_block; /* next tag defined in the same block. */
880 struct forward *forward_ref; /* list of forward references */
881 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
882 symint_t ifd; /* file # tag defined in */
883 localsym_t *sym; /* file's local symbols */
887 /* Head of a block's linked list of tags. */
888 typedef struct thead {
889 struct thead *prev; /* previous block */
890 struct thead *free; /* free list pointer */
891 struct tag *first_tag; /* first tag in block defined */
895 /* Union containing pointers to each the small structures which are freed up. */
896 typedef union small_free {
897 scope_t *f_scope; /* scope structure */
898 thead_t *f_thead; /* tag head structure */
899 tag_t *f_tag; /* tag element structure */
900 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 */
917 /* Type hash table support. The size of the hash table must fit
918 within a page with the other extended file descriptor information.
919 Because unique types which are hashed are fewer in number than
920 strings, we use a smaller hash value. */
925 #define THASH_SIZE 113
928 typedef struct thash {
929 struct thash *next; /* next hash value */
930 AUXU type; /* type we are hashing */
931 symint_t indx; /* index within string table */
935 /* Extended file descriptor that contains all of the support necessary
936 to add things to each file separately. */
937 typedef struct efdr {
938 FDR fdr; /* File header to be written out */
939 FDR *orig_fdr; /* original file header */
940 char *name; /* filename */
941 int fake; /* whether this is faked .file */
942 symint_t void_type; /* aux. pointer to 'void' type */
943 symint_t int_type; /* aux. pointer to 'int' type */
944 scope_t *cur_scope; /* current nested scopes */
945 symint_t file_index; /* current file number */
946 int nested_scopes; /* # nested scopes */
947 varray_t strings; /* local strings */
948 varray_t symbols; /* local symbols */
949 varray_t procs; /* procedures */
950 varray_t aux_syms; /* auxiliary symbols */
951 struct efdr *next_file; /* next file descriptor */
952 /* string/type hash tables */
953 struct hash_control *str_hash; /* string hash table */
954 thash_t *thash_head[THASH_SIZE];
957 /* Pre-initialized extended file structure. */
958 static const efdr_t init_file =
960 { /* FDR structure */
961 0, /* adr: memory address of beginning of file */
962 0, /* rss: file name (of source, if known) */
963 0, /* issBase: file's string space */
964 0, /* cbSs: number of bytes in the ss */
965 0, /* isymBase: beginning of symbols */
966 0, /* csym: count file's of symbols */
967 0, /* ilineBase: file's line symbols */
968 0, /* cline: count of file's line symbols */
969 0, /* ioptBase: file's optimization entries */
970 0, /* copt: count of file's optimization entries */
971 0, /* ipdFirst: start of procedures for this file */
972 0, /* cpd: count of procedures for this file */
973 0, /* iauxBase: file's auxiliary entries */
974 0, /* caux: count of file's auxiliary entries */
975 0, /* rfdBase: index into the file indirect table */
976 0, /* crfd: count file indirect entries */
977 langC, /* lang: language for this file */
978 1, /* fMerge: whether this file can be merged */
979 0, /* fReadin: true if read in (not just created) */
980 #ifdef TARGET_BYTES_BIG_ENDIAN
981 1, /* fBigendian: if 1, compiled on big endian machine */
983 0, /* fBigendian: if 1, compiled on big endian machine */
985 GLEVEL_2, /* glevel: level this file was compiled with */
986 0, /* reserved: reserved for future use */
987 0, /* cbLineOffset: byte offset from header for this file ln's */
988 0, /* cbLine: size of lines for this file */
991 (FDR *)0, /* orig_fdr: original file header pointer */
992 (char *)0, /* name: pointer to filename */
993 0, /* fake: whether this is a faked .file */
994 0, /* void_type: ptr to aux node for void type */
995 0, /* int_type: ptr to aux node for int type */
996 (scope_t *)0, /* cur_scope: current scope being processed */
997 0, /* file_index: current file # */
998 0, /* nested_scopes: # nested scopes */
999 INIT_VARRAY (char), /* strings: local string varray */
1000 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
1001 INIT_VARRAY (proc_t), /* procs: procedure varray */
1002 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1004 (struct efdr *)0, /* next_file: next file structure */
1006 (struct hash_control *)0, /* str_hash: string hash table */
1007 { 0 }, /* thash_head: type hash table */
1011 static efdr_t *first_file; /* first file descriptor */
1012 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1015 /* Line number information is kept in a list until the assembly is
1017 typedef struct lineno_list {
1018 struct lineno_list *next; /* next element in list */
1019 efdr_t *file; /* file this line is in */
1020 proc_t *proc; /* procedure this line is in */
1021 fragS *frag; /* fragment this line number is in */
1022 unsigned long paddr; /* offset within fragment */
1023 long lineno; /* actual line number */
1026 static lineno_list_t *first_lineno;
1027 static lineno_list_t *last_lineno;
1028 static lineno_list_t **last_lineno_ptr = &first_lineno;
1030 /* Sometimes there will be some .loc statements before a .ent. We
1031 keep them in this list so that we can fill in the procedure pointer
1032 after we see the .ent. */
1033 static lineno_list_t *noproc_lineno;
1035 /* Union of various things that are held in pages. */
1036 typedef union page {
1037 char byte [ PAGE_SIZE ];
1038 unsigned char ubyte [ PAGE_SIZE ];
1039 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1040 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1041 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1042 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1043 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1044 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1045 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1046 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1047 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1048 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1049 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1050 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1051 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1052 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1056 /* Structure holding allocation information for small sized structures. */
1057 typedef struct alloc_info {
1058 char *alloc_name; /* name of this allocation type (must be first) */
1059 page_t *cur_page; /* current page being allocated from */
1060 small_free_t free_list; /* current free list if any */
1061 int unallocated; /* number of elements unallocated on page */
1062 int total_alloc; /* total number of allocations */
1063 int total_free; /* total number of frees */
1064 int total_pages; /* total number of pages allocated */
1068 /* Type information collected together. */
1069 typedef struct type_info {
1070 bt_t basic_type; /* basic type */
1071 int orig_type; /* original COFF-based type */
1072 int num_tq; /* # type qualifiers */
1073 int num_dims; /* # dimensions */
1074 int num_sizes; /* # sizes */
1075 int extra_sizes; /* # extra sizes not tied with dims */
1076 tag_t * tag_ptr; /* tag pointer */
1077 int bitfield; /* symbol is a bitfield */
1078 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1079 symint_t dimensions [N_TQ]; /* dimensions for each array */
1080 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1081 struct/union/enum + bitfield size */
1084 /* Pre-initialized type_info struct. */
1085 static const type_info_t type_info_init = {
1086 bt_Nil, /* basic type */
1087 T_NULL, /* original COFF-based type */
1088 0, /* # type qualifiers */
1089 0, /* # dimensions */
1091 0, /* sizes not tied with dims */
1092 NULL, /* ptr to tag */
1094 { /* type qualifiers */
1122 /* Global hash table for the tags table and global table for file
1125 static varray_t file_desc = INIT_VARRAY (efdr_t);
1127 static struct hash_control *tag_hash;
1129 /* Static types for int and void. Also, remember the last function's
1130 type (which is set up when we encounter the declaration for the
1131 function, and used when the end block for the function is emitted. */
1133 static type_info_t int_type_info;
1134 static type_info_t void_type_info;
1135 static type_info_t last_func_type_info;
1136 static symbolS *last_func_sym_value;
1139 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1140 really should use bt_Void, but this causes the current ecoff GDB to
1141 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1142 2.0) doesn't understand it, even though the compiler generates it.
1143 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1144 suite, but for now go with what works.
1146 It would make sense for the .type and .scl directives to use the
1147 ECOFF numbers directly, rather than using the COFF numbers and
1148 mapping them. Unfortunately, this is historically what mips-tfile
1149 expects, and changing gcc now would be a considerable pain (the
1150 native compiler generates debugging information internally, rather
1151 than via the assembler, so it will never use .type or .scl). */
1153 static const bt_t map_coff_types[] = {
1154 bt_Nil, /* T_NULL */
1156 bt_Char, /* T_CHAR */
1157 bt_Short, /* T_SHORT */
1159 bt_Long, /* T_LONG */
1160 bt_Float, /* T_FLOAT */
1161 bt_Double, /* T_DOUBLE */
1162 bt_Struct, /* T_STRUCT */
1163 bt_Union, /* T_UNION */
1164 bt_Enum, /* T_ENUM */
1165 bt_Enum, /* T_MOE */
1166 bt_UChar, /* T_UCHAR */
1167 bt_UShort, /* T_USHORT */
1168 bt_UInt, /* T_UINT */
1169 bt_ULong /* T_ULONG */
1172 /* Convert COFF storage class to ECOFF storage class. */
1173 static const sc_t map_coff_storage[] = {
1174 sc_Nil, /* 0: C_NULL */
1175 sc_Abs, /* 1: C_AUTO auto var */
1176 sc_Undefined, /* 2: C_EXT external */
1177 sc_Data, /* 3: C_STAT static */
1178 sc_Register, /* 4: C_REG register */
1179 sc_Undefined, /* 5: C_EXTDEF ??? */
1180 sc_Text, /* 6: C_LABEL label */
1181 sc_Text, /* 7: C_ULABEL user label */
1182 sc_Info, /* 8: C_MOS member of struct */
1183 sc_Abs, /* 9: C_ARG argument */
1184 sc_Info, /* 10: C_STRTAG struct tag */
1185 sc_Info, /* 11: C_MOU member of union */
1186 sc_Info, /* 12: C_UNTAG union tag */
1187 sc_Info, /* 13: C_TPDEF typedef */
1188 sc_Data, /* 14: C_USTATIC ??? */
1189 sc_Info, /* 15: C_ENTAG enum tag */
1190 sc_Info, /* 16: C_MOE member of enum */
1191 sc_Register, /* 17: C_REGPARM register parameter */
1192 sc_Bits, /* 18; C_FIELD bitfield */
1274 sc_Text, /* 100: C_BLOCK block start/end */
1275 sc_Text, /* 101: C_FCN function start/end */
1276 sc_Info, /* 102: C_EOS end of struct/union/enum */
1277 sc_Nil, /* 103: C_FILE file start */
1278 sc_Nil, /* 104: C_LINE line number */
1279 sc_Nil, /* 105: C_ALIAS combined type info */
1280 sc_Nil, /* 106: C_HIDDEN ??? */
1283 /* Convert COFF storage class to ECOFF symbol type. */
1284 static const st_t map_coff_sym_type[] = {
1285 st_Nil, /* 0: C_NULL */
1286 st_Local, /* 1: C_AUTO auto var */
1287 st_Global, /* 2: C_EXT external */
1288 st_Static, /* 3: C_STAT static */
1289 st_Local, /* 4: C_REG register */
1290 st_Global, /* 5: C_EXTDEF ??? */
1291 st_Label, /* 6: C_LABEL label */
1292 st_Label, /* 7: C_ULABEL user label */
1293 st_Member, /* 8: C_MOS member of struct */
1294 st_Param, /* 9: C_ARG argument */
1295 st_Block, /* 10: C_STRTAG struct tag */
1296 st_Member, /* 11: C_MOU member of union */
1297 st_Block, /* 12: C_UNTAG union tag */
1298 st_Typedef, /* 13: C_TPDEF typedef */
1299 st_Static, /* 14: C_USTATIC ??? */
1300 st_Block, /* 15: C_ENTAG enum tag */
1301 st_Member, /* 16: C_MOE member of enum */
1302 st_Param, /* 17: C_REGPARM register parameter */
1303 st_Member, /* 18; C_FIELD bitfield */
1385 st_Block, /* 100: C_BLOCK block start/end */
1386 st_Proc, /* 101: C_FCN function start/end */
1387 st_End, /* 102: C_EOS end of struct/union/enum */
1388 st_File, /* 103: C_FILE file start */
1389 st_Nil, /* 104: C_LINE line number */
1390 st_Nil, /* 105: C_ALIAS combined type info */
1391 st_Nil, /* 106: C_HIDDEN ??? */
1395 /* Keep track of different sized allocation requests. */
1396 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1398 /* Record whether we have seen any debugging information. */
1399 int ecoff_debugging_seen = 0;
1401 /* Various statics. */
1402 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1403 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1404 static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1405 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1406 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1408 static int debug = 0; /* trace functions */
1410 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1412 static int current_file_idx;
1413 static const char *current_stabs_filename;
1415 /* Pseudo symbol to use when putting stabs into the symbol table. */
1416 #ifndef STABS_SYMBOL
1417 #define STABS_SYMBOL "@stabs"
1420 static char stabs_symbol[] = STABS_SYMBOL;
1422 /* Prototypes for functions defined in this file. */
1424 static void add_varray_page PARAMS ((varray_t *vp));
1425 static symint_t add_string PARAMS ((varray_t *vp,
1426 struct hash_control *hash_tbl,
1428 shash_t **ret_hash));
1429 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1430 sc_t storage, symbolS *sym,
1431 bfd_vma addend, symint_t value,
1433 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1434 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1435 symint_t sym_index));
1436 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1438 thash_t **hash_tbl));
1439 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1441 static void add_unknown_tag PARAMS ((tag_t *ptag));
1442 static void add_procedure PARAMS ((char *func));
1443 static void add_file PARAMS ((const char *file_name, int indx, int fake));
1445 static char *sc_to_string PARAMS ((sc_t storage_class));
1446 static char *st_to_string PARAMS ((st_t symbol_type));
1448 static void mark_stabs PARAMS ((int));
1449 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1450 char *bufptr, unsigned long need));
1451 static unsigned long ecoff_padding_adjust
1452 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1453 unsigned long offset, char **bufptrptr));
1454 static unsigned long ecoff_build_lineno
1455 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1456 unsigned long offset, long *linecntptr));
1457 static unsigned long ecoff_build_symbols
1458 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1459 unsigned long offset));
1460 static unsigned long ecoff_build_procs
1461 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1462 unsigned long offset));
1463 static unsigned long ecoff_build_aux
1464 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1465 unsigned long offset));
1466 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1467 unsigned long offset,
1469 static unsigned long ecoff_build_ss
1470 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1471 unsigned long offset));
1472 static unsigned long ecoff_build_fdr
1473 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1474 unsigned long offset));
1475 static void ecoff_setup_ext PARAMS ((void));
1476 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1477 static page_t *allocate_page PARAMS ((void));
1478 static scope_t *allocate_scope PARAMS ((void));
1479 static void free_scope PARAMS ((scope_t *ptr));
1480 static vlinks_t *allocate_vlinks PARAMS ((void));
1481 static shash_t *allocate_shash PARAMS ((void));
1482 static thash_t *allocate_thash PARAMS ((void));
1483 static tag_t *allocate_tag PARAMS ((void));
1484 static void free_tag PARAMS ((tag_t *ptr));
1485 static forward_t *allocate_forward PARAMS ((void));
1486 static thead_t *allocate_thead PARAMS ((void));
1487 static void free_thead PARAMS ((thead_t *ptr));
1488 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1489 static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int));
1491 /* This function should be called when the assembler starts up. */
1494 ecoff_read_begin_hook ()
1496 tag_hash = hash_new ();
1497 top_tag_head = allocate_thead ();
1498 top_tag_head->first_tag = (tag_t *) NULL;
1499 top_tag_head->free = (thead_t *) NULL;
1500 top_tag_head->prev = cur_tag_head;
1501 cur_tag_head = top_tag_head;
1504 /* This function should be called when a symbol is created. */
1507 ecoff_symbol_new_hook (symbolP)
1510 /* Make sure that we have a file pointer, but only if we have seen a
1511 file. If we haven't seen a file, then this is a probably special
1512 symbol created by md_begin which may required special handling at
1513 some point. Creating a dummy file with a dummy name is certainly
1515 if (cur_file_ptr == (efdr_t *) NULL
1516 && seen_at_least_1_file ())
1517 add_file ((const char *) NULL, 0, 1);
1518 symbolP->ecoff_file = cur_file_ptr;
1519 symbolP->ecoff_symbol = NULL;
1520 symbolP->ecoff_extern_size = 0;
1523 /* Add a page to a varray object. */
1526 add_varray_page (vp)
1527 varray_t *vp; /* varray to add page to */
1529 vlinks_t *new_links = allocate_vlinks ();
1532 if (vp->object_size > 1)
1533 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1536 new_links->datum = allocate_page ();
1538 alloc_counts[(int)alloc_type_varray].total_alloc++;
1539 alloc_counts[(int)alloc_type_varray].total_pages++;
1541 new_links->start_index = vp->num_allocated;
1542 vp->objects_last_page = 0;
1544 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1545 vp->first = vp->last = new_links;
1547 { /* 2nd or greater allocation */
1548 new_links->prev = vp->last;
1549 vp->last->next = new_links;
1550 vp->last = new_links;
1554 /* Add a string (and null pad) to one of the string tables. */
1557 add_string (vp, hash_tbl, str, ret_hash)
1558 varray_t *vp; /* string obstack */
1559 struct hash_control *hash_tbl; /* ptr to hash table */
1560 const char *str; /* string */
1561 shash_t **ret_hash; /* return hash pointer */
1563 register unsigned long len = strlen (str);
1564 register shash_t *hash_ptr;
1566 if (len >= PAGE_USIZE)
1567 as_fatal ("String too big (%lu bytes)", len);
1569 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1570 if (hash_ptr == (shash_t *) NULL)
1572 register const char *err;
1574 if (vp->objects_last_page + len >= PAGE_USIZE)
1577 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1578 add_varray_page (vp);
1581 hash_ptr = allocate_shash ();
1582 hash_ptr->indx = vp->num_allocated;
1584 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1586 vp->objects_last_page += len + 1;
1587 vp->num_allocated += len + 1;
1589 strcpy (hash_ptr->string, str);
1591 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1593 as_fatal ("Inserting \"%s\" into string hash table: %s",
1597 if (ret_hash != (shash_t **) NULL)
1598 *ret_hash = hash_ptr;
1600 return hash_ptr->indx;
1603 /* Add debugging information for a symbol. */
1606 add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
1607 const char *str; /* symbol name */
1608 st_t type; /* symbol type */
1609 sc_t storage; /* storage class */
1610 symbolS *sym_value; /* associated symbol. */
1611 bfd_vma addend; /* addend to sym_value. */
1612 symint_t value; /* value of symbol */
1613 symint_t indx; /* index to local/aux. syms */
1616 register scope_t *pscope;
1617 register thead_t *ptag_head;
1618 register tag_t *ptag;
1619 register tag_t *ptag_next;
1620 register varray_t *vp;
1621 register int scope_delta = 0;
1622 shash_t *hash_ptr = (shash_t *) NULL;
1624 if (cur_file_ptr == (efdr_t *) NULL)
1625 as_fatal ("no current file pointer");
1627 vp = &cur_file_ptr->symbols;
1629 if (vp->objects_last_page == vp->objects_per_page)
1630 add_varray_page (vp);
1632 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1634 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1635 psym->name = S_GET_NAME (sym_value);
1638 psym->as_sym = sym_value;
1639 if (sym_value != (symbolS *) NULL)
1640 sym_value->ecoff_symbol = psym;
1641 psym->addend = addend;
1642 psym->file_ptr = cur_file_ptr;
1643 psym->proc_ptr = cur_proc_ptr;
1644 psym->begin_ptr = (localsym_t *) NULL;
1645 psym->index_ptr = (aux_t *) NULL;
1646 psym->forward_ref = (forward_t *) NULL;
1647 psym->sym_index = -1;
1648 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1649 psym->ecoff_sym.asym.value = value;
1650 psym->ecoff_sym.asym.st = (unsigned) type;
1651 psym->ecoff_sym.asym.sc = (unsigned) storage;
1652 psym->ecoff_sym.asym.index = indx;
1654 /* If there is an associated symbol, we wait until the end of the
1655 assembly before deciding where to put the name (it may be just an
1656 external symbol). Otherwise, this is just a debugging symbol and
1657 the name should go with the current file. */
1658 if (sym_value == (symbolS *) NULL)
1659 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1661 : add_string (&cur_file_ptr->strings,
1662 cur_file_ptr->str_hash,
1666 ++vp->num_allocated;
1668 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1671 /* Save the symbol within the hash table if this is a static
1672 item, and it has a name. */
1673 if (hash_ptr != (shash_t *) NULL
1674 && (type == st_Global || type == st_Static || type == st_Label
1675 || type == st_Proc || type == st_StaticProc))
1676 hash_ptr->sym_ptr = psym;
1678 /* push or pop a scope if appropriate. */
1684 case st_File: /* beginning of file */
1685 case st_Proc: /* procedure */
1686 case st_StaticProc: /* static procedure */
1687 case st_Block: /* begin scope */
1688 pscope = allocate_scope ();
1689 pscope->prev = cur_file_ptr->cur_scope;
1690 pscope->lsym = psym;
1691 pscope->type = type;
1692 cur_file_ptr->cur_scope = pscope;
1694 if (type != st_File)
1697 /* For every block type except file, struct, union, or
1698 enumeration blocks, push a level on the tag stack. We omit
1699 file types, so that tags can span file boundaries. */
1700 if (type != st_File && storage != sc_Info)
1702 ptag_head = allocate_thead ();
1703 ptag_head->first_tag = 0;
1704 ptag_head->prev = cur_tag_head;
1705 cur_tag_head = ptag_head;
1710 pscope = cur_file_ptr->cur_scope;
1711 if (pscope == (scope_t *) NULL)
1712 as_fatal ("too many st_End's");
1715 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1717 psym->begin_ptr = pscope->lsym;
1719 if (begin_type != st_File)
1722 /* Except for file, structure, union, or enumeration end
1723 blocks remove all tags created within this scope. */
1724 if (begin_type != st_File && storage != sc_Info)
1726 ptag_head = cur_tag_head;
1727 cur_tag_head = ptag_head->prev;
1729 for (ptag = ptag_head->first_tag;
1730 ptag != (tag_t *) NULL;
1733 if (ptag->forward_ref != (forward_t *) NULL)
1734 add_unknown_tag (ptag);
1736 ptag_next = ptag->same_block;
1737 ptag->hash_ptr->tag_ptr = ptag->same_name;
1741 free_thead (ptag_head);
1744 cur_file_ptr->cur_scope = pscope->prev;
1746 /* block begin gets next sym #. This is set when we know
1747 the symbol index value. */
1749 /* Functions push two or more aux words as follows:
1750 1st word: index+1 of the end symbol (filled in later).
1751 2nd word: type of the function (plus any aux words needed).
1752 Also, tie the external pointer back to the function begin symbol. */
1753 if (begin_type != st_File && begin_type != st_Block)
1756 varray_t *svp = &cur_file_ptr->aux_syms;
1758 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1759 pscope->lsym->index_ptr =
1760 &svp->last->datum->aux[svp->objects_last_page - 1];
1761 ty = add_aux_sym_tir (&last_func_type_info,
1763 &cur_file_ptr->thash_head[0]);
1765 /* This seems to be unnecessary. I'm not even sure what it is
1766 * intended to do. It's from mips-tfile.
1767 * if (last_func_sym_value != (symbolS *) NULL)
1769 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1770 * last_func_sym_value->index = ty;
1775 free_scope (pscope);
1779 cur_file_ptr->nested_scopes += scope_delta;
1782 if (debug && type != st_File
1783 && (debug > 2 || type == st_Block || type == st_End
1784 || type == st_Proc || type == st_StaticProc))
1786 char *sc_str = sc_to_string (storage);
1787 char *st_str = st_to_string (type);
1788 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1791 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1792 value, depth, sc_str);
1794 if (str_start && str_end_p1 - str_start > 0)
1795 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1798 unsigned long len = strlen (st_str);
1799 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1807 /* Add an auxiliary symbol (passing a symint). This is actually used
1808 for integral aux types, not just symints. */
1811 add_aux_sym_symint (aux_word)
1812 symint_t aux_word; /* auxiliary information word */
1814 register varray_t *vp;
1815 register aux_t *aux_ptr;
1817 if (cur_file_ptr == (efdr_t *) NULL)
1818 as_fatal ("no current file pointer");
1820 vp = &cur_file_ptr->aux_syms;
1822 if (vp->objects_last_page == vp->objects_per_page)
1823 add_varray_page (vp);
1825 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1826 aux_ptr->type = aux_isym;
1827 aux_ptr->data.isym = aux_word;
1829 return vp->num_allocated++;
1833 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1836 add_aux_sym_rndx (file_index, sym_index)
1840 register varray_t *vp;
1841 register aux_t *aux_ptr;
1843 if (cur_file_ptr == (efdr_t *) NULL)
1844 as_fatal ("no current file pointer");
1846 vp = &cur_file_ptr->aux_syms;
1848 if (vp->objects_last_page == vp->objects_per_page)
1849 add_varray_page (vp);
1851 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1852 aux_ptr->type = aux_rndx;
1853 aux_ptr->data.rndx.rfd = file_index;
1854 aux_ptr->data.rndx.index = sym_index;
1856 return vp->num_allocated++;
1859 /* Add an auxiliary symbol (passing the basic type and possibly
1860 type qualifiers). */
1863 add_aux_sym_tir (t, state, hash_tbl)
1864 type_info_t *t; /* current type information */
1865 hash_state_t state; /* whether to hash type or not */
1866 thash_t **hash_tbl; /* pointer to hash table to use */
1868 register varray_t *vp;
1869 register aux_t *aux_ptr;
1870 static AUXU init_aux;
1875 if (cur_file_ptr == (efdr_t *) NULL)
1876 as_fatal ("no current file pointer");
1878 vp = &cur_file_ptr->aux_syms;
1881 aux.ti.bt = (int) t->basic_type;
1882 aux.ti.continued = 0;
1883 aux.ti.fBitfield = t->bitfield;
1885 aux.ti.tq0 = (int) t->type_qualifiers[0];
1886 aux.ti.tq1 = (int) t->type_qualifiers[1];
1887 aux.ti.tq2 = (int) t->type_qualifiers[2];
1888 aux.ti.tq3 = (int) t->type_qualifiers[3];
1889 aux.ti.tq4 = (int) t->type_qualifiers[4];
1890 aux.ti.tq5 = (int) t->type_qualifiers[5];
1893 /* For anything that adds additional information, we must not hash,
1894 so check here, and reset our state. */
1896 if (state != hash_no
1897 && (t->type_qualifiers[0] == tq_Array
1898 || t->type_qualifiers[1] == tq_Array
1899 || t->type_qualifiers[2] == tq_Array
1900 || t->type_qualifiers[3] == tq_Array
1901 || t->type_qualifiers[4] == tq_Array
1902 || t->type_qualifiers[5] == tq_Array
1903 || t->basic_type == bt_Struct
1904 || t->basic_type == bt_Union
1905 || t->basic_type == bt_Enum
1907 || t->num_dims > 0))
1910 /* See if we can hash this type, and save some space, but some types
1911 can't be hashed (because they contain arrays or continuations),
1912 and others can be put into the hash list, but cannot use existing
1913 types because other aux entries precede this one. */
1915 if (state != hash_no)
1917 register thash_t *hash_ptr;
1918 register symint_t hi;
1920 hi = aux.isym & ((1 << HASHBITS) - 1);
1923 for (hash_ptr = hash_tbl[hi];
1924 hash_ptr != (thash_t *)0;
1925 hash_ptr = hash_ptr->next)
1927 if (aux.isym == hash_ptr->type.isym)
1931 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1932 return hash_ptr->indx;
1934 if (hash_ptr == (thash_t *) NULL)
1936 hash_ptr = allocate_thash ();
1937 hash_ptr->next = hash_tbl[hi];
1938 hash_ptr->type = aux;
1939 hash_ptr->indx = vp->num_allocated;
1940 hash_tbl[hi] = hash_ptr;
1944 /* Everything is set up, add the aux symbol. */
1945 if (vp->objects_last_page == vp->objects_per_page)
1946 add_varray_page (vp);
1948 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1949 aux_ptr->type = aux_tir;
1950 aux_ptr->data = aux;
1952 ret = vp->num_allocated++;
1954 /* Add bitfield length if it exists.
1956 NOTE: Mips documentation claims bitfield goes at the end of the
1957 AUX record, but the DECstation compiler emits it here.
1958 (This would only make a difference for enum bitfields.)
1960 Also note: We use the last size given since gcc may emit 2
1961 for an enum bitfield. */
1964 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1967 /* Add tag information if needed. Structure, union, and enum
1968 references add 2 aux symbols: a [file index, symbol index]
1969 pointer to the structure type, and the current file index. */
1971 if (t->basic_type == bt_Struct
1972 || t->basic_type == bt_Union
1973 || t->basic_type == bt_Enum)
1975 register symint_t file_index = t->tag_ptr->ifd;
1976 register localsym_t *sym = t->tag_ptr->sym;
1977 register forward_t *forward_ref = allocate_forward ();
1979 if (sym != (localsym_t *) NULL)
1981 forward_ref->next = sym->forward_ref;
1982 sym->forward_ref = forward_ref;
1986 forward_ref->next = t->tag_ptr->forward_ref;
1987 t->tag_ptr->forward_ref = forward_ref;
1990 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1991 forward_ref->index_ptr
1992 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1994 (void) add_aux_sym_symint (file_index);
1995 forward_ref->ifd_ptr
1996 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1999 /* Add information about array bounds if they exist. */
2000 for (i = 0; i < t->num_dims; i++)
2002 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2003 cur_file_ptr->int_type);
2005 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2006 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2007 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2008 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2010 : (t->sizes[i] * 8) / t->dimensions[i]);
2013 /* NOTE: Mips documentation claims that the bitfield width goes here.
2014 But it needs to be emitted earlier. */
2019 /* Add a tag to the tag table (unless it already exists). */
2022 get_tag (tag, sym, basic_type)
2023 const char *tag; /* tag name */
2024 localsym_t *sym; /* tag start block */
2025 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2031 if (cur_file_ptr == (efdr_t *) NULL)
2032 as_fatal ("no current file pointer");
2034 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2036 if (hash_ptr != (shash_t *) NULL
2037 && hash_ptr->tag_ptr != (tag_t *) NULL)
2039 tag_ptr = hash_ptr->tag_ptr;
2040 if (sym != (localsym_t *) NULL)
2042 tag_ptr->basic_type = basic_type;
2043 tag_ptr->ifd = cur_file_ptr->file_index;
2049 if (hash_ptr == (shash_t *) NULL)
2053 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2055 hash_ptr = allocate_shash ();
2056 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2058 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2060 hash_ptr->string = perm;
2063 tag_ptr = allocate_tag ();
2064 tag_ptr->forward_ref = (forward_t *) NULL;
2065 tag_ptr->hash_ptr = hash_ptr;
2066 tag_ptr->same_name = hash_ptr->tag_ptr;
2067 tag_ptr->basic_type = basic_type;
2069 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2071 : cur_file_ptr->file_index);
2072 tag_ptr->same_block = cur_tag_head->first_tag;
2074 cur_tag_head->first_tag = tag_ptr;
2075 hash_ptr->tag_ptr = tag_ptr;
2080 /* Add an unknown {struct, union, enum} tag. */
2083 add_unknown_tag (ptag)
2084 tag_t *ptag; /* pointer to tag information */
2086 shash_t *hash_ptr = ptag->hash_ptr;
2087 char *name = hash_ptr->string;
2094 char *agg_type = "{unknown aggregate type}";
2095 switch (ptag->basic_type)
2097 case bt_Struct: agg_type = "struct"; break;
2098 case bt_Union: agg_type = "union"; break;
2099 case bt_Enum: agg_type = "enum"; break;
2103 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2104 hash_ptr->len, name_start);
2108 sym = add_ecoff_symbol (name,
2116 (void) add_ecoff_symbol (name,
2124 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2126 *pf = ptag->forward_ref;
2129 /* Add a procedure to the current file's list of procedures, and record
2130 this is the current procedure. */
2133 add_procedure (func)
2134 char *func; /* func name */
2136 register varray_t *vp;
2137 register proc_t *new_proc_ptr;
2142 fputc ('\n', stderr);
2145 if (cur_file_ptr == (efdr_t *) NULL)
2146 as_fatal ("no current file pointer");
2148 vp = &cur_file_ptr->procs;
2150 if (vp->objects_last_page == vp->objects_per_page)
2151 add_varray_page (vp);
2153 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2155 if (first_proc_ptr == (proc_t *) NULL)
2156 first_proc_ptr = new_proc_ptr;
2158 vp->num_allocated++;
2160 new_proc_ptr->pdr.isym = -1;
2161 new_proc_ptr->pdr.iline = -1;
2162 new_proc_ptr->pdr.lnLow = -1;
2163 new_proc_ptr->pdr.lnHigh = -1;
2165 /* Set the BSF_FUNCTION flag for the symbol. */
2166 sym = symbol_find_or_make (func);
2167 sym->bsym->flags |= BSF_FUNCTION;
2169 /* Push the start of the function. */
2170 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2171 sym, (bfd_vma) 0, (symint_t) 0,
2176 /* Fill in the linenos preceding the .ent, if any. */
2177 if (noproc_lineno != (lineno_list_t *) NULL)
2181 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2182 l->proc = new_proc_ptr;
2183 *last_lineno_ptr = noproc_lineno;
2184 while (*last_lineno_ptr != NULL)
2186 last_lineno = *last_lineno_ptr;
2187 last_lineno_ptr = &last_lineno->next;
2189 noproc_lineno = (lineno_list_t *) NULL;
2193 /* Add a new filename, and set up all of the file relative
2194 virtual arrays (strings, symbols, aux syms, etc.). Record
2195 where the current file structure lives. */
2198 add_file (file_name, indx, fake)
2199 const char *file_name; /* file name */
2203 register int first_ch;
2204 register efdr_t *fil_ptr;
2208 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2211 /* If the file name is NULL, then no .file symbol appeared, and we
2212 want to use the actual file name. */
2213 if (file_name == (const char *) NULL)
2217 if (first_file != (efdr_t *) NULL)
2218 as_fatal ("fake .file after real one");
2219 as_where (&file, (unsigned int *) NULL);
2220 file_name = (const char *) file;
2222 if (! symbol_table_frozen)
2223 generate_asm_lineno = 1;
2226 generate_asm_lineno = 0;
2230 listing_source_file (file_name);
2233 current_stabs_filename = file_name;
2235 /* If we're creating stabs, then we don't actually make a new FDR.
2236 Instead, we just create a stabs symbol. */
2239 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2240 symbol_new ("L0\001", now_seg,
2241 (valueT) frag_now_fix (),
2243 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2247 first_ch = *file_name;
2249 /* FIXME: We can't safely merge files which have line number
2250 information (fMerge will be zero in this case). Otherwise, we
2251 get incorrect line number debugging info. See for instance
2252 ecoff_build_lineno, which will end up setting all file->fdr.*
2253 fields multiple times, resulting in incorrect debug info. In
2254 order to make this work right, all line number and symbol info
2255 for the same source file has to be adjacent in the object file,
2256 so that a single file descriptor can be used to point to them.
2257 This would require maintaining file specific lists of line
2258 numbers and symbols for each file, so that they can be merged
2259 together (or output together) when two .file pseudo-ops are
2260 merged into one file descriptor. */
2262 /* See if the file has already been created. */
2263 for (fil_ptr = first_file;
2264 fil_ptr != (efdr_t *) NULL;
2265 fil_ptr = fil_ptr->next_file)
2267 if (first_ch == fil_ptr->name[0]
2268 && strcmp (file_name, fil_ptr->name) == 0
2269 && fil_ptr->fdr.fMerge)
2271 cur_file_ptr = fil_ptr;
2273 cur_file_ptr->fake = 0;
2278 /* If this is a new file, create it. */
2279 if (fil_ptr == (efdr_t *) NULL)
2281 if (file_desc.objects_last_page == file_desc.objects_per_page)
2282 add_varray_page (&file_desc);
2284 fil_ptr = cur_file_ptr =
2285 &file_desc.last->datum->file[file_desc.objects_last_page++];
2286 *fil_ptr = init_file;
2288 fil_ptr->file_index = current_file_idx++;
2289 ++file_desc.num_allocated;
2291 fil_ptr->fake = fake;
2293 /* Allocate the string hash table. */
2294 fil_ptr->str_hash = hash_new ();
2296 /* Make sure 0 byte in string table is null */
2297 add_string (&fil_ptr->strings,
2302 if (strlen (file_name) > PAGE_USIZE - 2)
2303 as_fatal ("Filename goes over one page boundary.");
2305 /* Push the start of the filename. We assume that the filename
2306 will be stored at string offset 1. */
2307 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2308 (symbolS *) NULL, (bfd_vma) 0,
2309 (symint_t) 0, (symint_t) 0);
2310 fil_ptr->fdr.rss = 1;
2311 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2313 /* Update the linked list of file descriptors. */
2314 *last_file_ptr = fil_ptr;
2315 last_file_ptr = &fil_ptr->next_file;
2317 /* Add void & int types to the file (void should be first to catch
2318 errant 0's within the index fields). */
2319 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2321 &cur_file_ptr->thash_head[0]);
2323 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2325 &cur_file_ptr->thash_head[0]);
2326 /* gas used to have a bug that if the file does not have any
2327 symbol, it either will abort or will not build the file,
2328 the following is to get around that problem. ---kung*/
2330 if (generate_asm_lineno)
2333 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2334 symbol_new ("L0\001", now_seg,
2335 (valueT) frag_now_fix (),
2337 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SO));
2338 (void) add_ecoff_symbol ("void:t1=1", st_Nil, sc_Nil,
2339 (symbolS *) NULL, (bfd_vma) 0, 0,
2340 ECOFF_MARK_STAB (N_LSYM));
2346 /* This function is called when the assembler notices a preprocessor
2347 directive switching to a new file. This will not happen in
2348 compiler output, only in hand coded assembler. */
2351 ecoff_new_file (name)
2354 add_file (name, 0, 0);
2355 generate_asm_lineno = 1;
2360 /* Convert storage class to string. */
2363 sc_to_string(storage_class)
2366 switch(storage_class)
2368 case sc_Nil: return "Nil,";
2369 case sc_Text: return "Text,";
2370 case sc_Data: return "Data,";
2371 case sc_Bss: return "Bss,";
2372 case sc_Register: return "Register,";
2373 case sc_Abs: return "Abs,";
2374 case sc_Undefined: return "Undefined,";
2375 case sc_CdbLocal: return "CdbLocal,";
2376 case sc_Bits: return "Bits,";
2377 case sc_CdbSystem: return "CdbSystem,";
2378 case sc_RegImage: return "RegImage,";
2379 case sc_Info: return "Info,";
2380 case sc_UserStruct: return "UserStruct,";
2381 case sc_SData: return "SData,";
2382 case sc_SBss: return "SBss,";
2383 case sc_RData: return "RData,";
2384 case sc_Var: return "Var,";
2385 case sc_Common: return "Common,";
2386 case sc_SCommon: return "SCommon,";
2387 case sc_VarRegister: return "VarRegister,";
2388 case sc_Variant: return "Variant,";
2389 case sc_SUndefined: return "SUndefined,";
2390 case sc_Init: return "Init,";
2391 case sc_Max: return "Max,";
2401 /* Convert symbol type to string. */
2404 st_to_string(symbol_type)
2409 case st_Nil: return "Nil,";
2410 case st_Global: return "Global,";
2411 case st_Static: return "Static,";
2412 case st_Param: return "Param,";
2413 case st_Local: return "Local,";
2414 case st_Label: return "Label,";
2415 case st_Proc: return "Proc,";
2416 case st_Block: return "Block,";
2417 case st_End: return "End,";
2418 case st_Member: return "Member,";
2419 case st_Typedef: return "Typedef,";
2420 case st_File: return "File,";
2421 case st_RegReloc: return "RegReloc,";
2422 case st_Forward: return "Forward,";
2423 case st_StaticProc: return "StaticProc,";
2424 case st_Constant: return "Constant,";
2425 case st_Str: return "String,";
2426 case st_Number: return "Number,";
2427 case st_Expr: return "Expr,";
2428 case st_Type: return "Type,";
2429 case st_Max: return "Max,";
2437 /* Parse .begin directives which have a label as the first argument
2438 which gives the location of the start of the block. */
2441 ecoff_directive_begin (ignore)
2447 if (cur_file_ptr == (efdr_t *) NULL)
2449 as_warn (".begin directive without a preceding .file directive");
2450 demand_empty_rest_of_line ();
2454 if (cur_proc_ptr == (proc_t *) NULL)
2456 as_warn (".begin directive without a preceding .ent directive");
2457 demand_empty_rest_of_line ();
2461 name = input_line_pointer;
2462 name_end = get_symbol_end ();
2464 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2465 symbol_find_or_make (name),
2466 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2468 *input_line_pointer = name_end;
2470 /* The line number follows, but we don't use it. */
2471 (void) get_absolute_expression ();
2472 demand_empty_rest_of_line ();
2475 /* Parse .bend directives which have a label as the first argument
2476 which gives the location of the end of the block. */
2479 ecoff_directive_bend (ignore)
2486 if (cur_file_ptr == (efdr_t *) NULL)
2488 as_warn (".bend directive without a preceding .file directive");
2489 demand_empty_rest_of_line ();
2493 if (cur_proc_ptr == (proc_t *) NULL)
2495 as_warn (".bend directive without a preceding .ent directive");
2496 demand_empty_rest_of_line ();
2500 name = input_line_pointer;
2501 name_end = get_symbol_end ();
2503 /* The value is the distance between the .bend directive and the
2504 corresponding symbol. We fill in the offset when we write out
2506 endsym = symbol_find (name);
2507 if (endsym == (symbolS *) NULL)
2508 as_warn (".bend directive names unknown symbol");
2510 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2511 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2513 *input_line_pointer = name_end;
2515 /* The line number follows, but we don't use it. */
2516 (void) get_absolute_expression ();
2517 demand_empty_rest_of_line ();
2520 /* COFF debugging information is provided as a series of directives
2521 (.def, .scl, etc.). We build up information as we read the
2522 directives in the following static variables, and file it away when
2523 we reach the .endef directive. */
2524 static char *coff_sym_name;
2525 static type_info_t coff_type;
2526 static sc_t coff_storage_class;
2527 static st_t coff_symbol_typ;
2528 static int coff_is_function;
2529 static char *coff_tag;
2530 static valueT coff_value;
2531 static symbolS *coff_sym_value;
2532 static bfd_vma coff_sym_addend;
2533 static int coff_inside_enumeration;
2535 /* Handle a .def directive: start defining a symbol. */
2538 ecoff_directive_def (ignore)
2544 ecoff_debugging_seen = 1;
2548 name = input_line_pointer;
2549 name_end = get_symbol_end ();
2551 if (coff_sym_name != (char *) NULL)
2552 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2553 else if (*name == '\0')
2554 as_warn ("Empty symbol name in .def; ignored");
2557 if (coff_sym_name != (char *) NULL)
2558 free (coff_sym_name);
2559 if (coff_tag != (char *) NULL)
2561 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2562 strcpy (coff_sym_name, name);
2563 coff_type = type_info_init;
2564 coff_storage_class = sc_Nil;
2565 coff_symbol_typ = st_Nil;
2566 coff_is_function = 0;
2567 coff_tag = (char *) NULL;
2569 coff_sym_value = (symbolS *) NULL;
2570 coff_sym_addend = 0;
2573 *input_line_pointer = name_end;
2575 demand_empty_rest_of_line ();
2578 /* Handle a .dim directive, used to give dimensions for an array. The
2579 arguments are comma separated numbers. mips-tfile assumes that
2580 there will not be more than 6 dimensions, and gdb won't read any
2581 more than that anyhow, so I will also make that assumption. */
2584 ecoff_directive_dim (ignore)
2590 if (coff_sym_name == (char *) NULL)
2592 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2593 demand_empty_rest_of_line ();
2597 for (i = 0; i < N_TQ; i++)
2600 dimens[i] = get_absolute_expression ();
2601 if (*input_line_pointer == ',')
2602 ++input_line_pointer;
2605 if (*input_line_pointer != '\n'
2606 && *input_line_pointer != ';')
2607 as_warn ("Badly formed .dim directive");
2615 /* The dimensions are stored away in reverse order. */
2618 if (coff_type.num_dims >= N_TQ)
2620 as_warn ("Too many .dim entries");
2623 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2624 ++coff_type.num_dims;
2627 demand_empty_rest_of_line ();
2630 /* Handle a .scl directive, which sets the COFF storage class of the
2634 ecoff_directive_scl (ignore)
2639 if (coff_sym_name == (char *) NULL)
2641 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2642 demand_empty_rest_of_line ();
2646 val = get_absolute_expression ();
2648 coff_symbol_typ = map_coff_sym_type[val];
2649 coff_storage_class = map_coff_storage[val];
2651 demand_empty_rest_of_line ();
2654 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2655 .size can have multiple arguments. We humor it, although gcc will
2656 never generate more than one argument. */
2659 ecoff_directive_size (ignore)
2665 if (coff_sym_name == (char *) NULL)
2667 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2668 demand_empty_rest_of_line ();
2672 for (i = 0; i < N_TQ; i++)
2675 sizes[i] = get_absolute_expression ();
2676 if (*input_line_pointer == ',')
2677 ++input_line_pointer;
2680 if (*input_line_pointer != '\n'
2681 && *input_line_pointer != ';')
2682 as_warn ("Badly formed .size directive");
2690 /* The sizes are stored away in reverse order. */
2693 if (coff_type.num_sizes >= N_TQ)
2695 as_warn ("Too many .size entries");
2698 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2699 ++coff_type.num_sizes;
2702 demand_empty_rest_of_line ();
2705 /* Handle the .type directive, which gives the COFF type of the
2709 ecoff_directive_type (ignore)
2716 if (coff_sym_name == (char *) NULL)
2718 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2719 demand_empty_rest_of_line ();
2723 val = get_absolute_expression ();
2725 coff_type.orig_type = BTYPE (val);
2726 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2728 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2729 while (val &~ N_BTMASK)
2731 if (tq_ptr == &coff_type.type_qualifiers[0])
2733 /* FIXME: We could handle this by setting the continued bit.
2734 There would still be a limit: the .type argument can not
2736 as_warn ("The type of %s is too complex; it will be simplified",
2742 else if (ISFCN (val))
2743 *--tq_ptr = tq_Proc;
2744 else if (ISARY (val))
2745 *--tq_ptr = tq_Array;
2747 as_fatal ("Unrecognized .type argument");
2752 tq_shft = &coff_type.type_qualifiers[0];
2753 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2754 *tq_shft++ = *tq_ptr++;
2756 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2758 /* If this is a function, ignore it, so that we don't get two
2759 entries (one from the .ent, and one for the .def that
2760 precedes it). Save the type information so that the end
2761 block can properly add it after the begin block index. For
2762 MIPS knows what reason, we must strip off the function type
2764 coff_is_function = 1;
2765 tq_shft[-1] = tq_Nil;
2768 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2769 *tq_shft++ = tq_Nil;
2771 demand_empty_rest_of_line ();
2774 /* Handle the .tag directive, which gives the name of a structure,
2778 ecoff_directive_tag (ignore)
2784 if (coff_sym_name == (char *) NULL)
2786 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2787 demand_empty_rest_of_line ();
2791 name = input_line_pointer;
2792 name_end = get_symbol_end ();
2794 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2795 strcpy (coff_tag, name);
2797 *input_line_pointer = name_end;
2799 demand_empty_rest_of_line ();
2802 /* Handle the .val directive, which gives the value of the symbol. It
2803 may be the name of a static or global symbol. */
2806 ecoff_directive_val (ignore)
2811 if (coff_sym_name == (char *) NULL)
2813 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2814 demand_empty_rest_of_line ();
2819 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2821 as_bad (".val expression is too copmlex");
2822 demand_empty_rest_of_line ();
2826 if (exp.X_op == O_constant)
2827 coff_value = exp.X_add_number;
2830 coff_sym_value = exp.X_add_symbol;
2831 coff_sym_addend = exp.X_add_number;
2834 demand_empty_rest_of_line ();
2837 /* Handle the .endef directive, which terminates processing of COFF
2838 debugging information for a symbol. */
2841 ecoff_directive_endef (ignore)
2848 demand_empty_rest_of_line ();
2850 if (coff_sym_name == (char *) NULL)
2852 as_warn (".endef pseudo-op used before .def; ignored");
2856 name = coff_sym_name;
2857 coff_sym_name = (char *) NULL;
2859 /* If the symbol is a static or external, we have already gotten the
2860 appropriate type and class, so make sure we don't override those
2861 values. This is needed because there are some type and classes
2862 that are not in COFF, such as short data, etc. */
2863 if (coff_sym_value != (symbolS *) NULL)
2865 coff_symbol_typ = st_Nil;
2866 coff_storage_class = sc_Nil;
2869 coff_type.extra_sizes = coff_tag != (char *) NULL;
2870 if (coff_type.num_dims > 0)
2872 int diff = coff_type.num_dims - coff_type.num_sizes;
2873 int i = coff_type.num_dims - 1;
2876 if (coff_type.num_sizes != 1 || diff < 0)
2878 as_warn ("Bad COFF debugging info");
2882 /* If this is an array, make sure the same number of dimensions
2883 and sizes were passed, creating extra sizes for multiply
2884 dimensioned arrays if not passed. */
2885 coff_type.extra_sizes = 0;
2888 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2891 coff_type.sizes[j] = (((j - diff) >= 0)
2892 ? coff_type.sizes[j - diff]
2897 coff_type.num_sizes = i + 1;
2898 for (i--; i >= 0; i--)
2899 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2901 : (coff_type.sizes[i + 1]
2902 / coff_type.dimensions[i + 1]));
2905 else if (coff_symbol_typ == st_Member
2906 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2908 /* Is this a bitfield? This is indicated by a structure memeber
2909 having a size field that isn't an array. */
2910 coff_type.bitfield = 1;
2913 /* Except for enumeration members & begin/ending of scopes, put the
2914 type word in the aux. symbol table. */
2915 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2917 else if (coff_inside_enumeration)
2918 indx = cur_file_ptr->void_type;
2921 if (coff_type.basic_type == bt_Struct
2922 || coff_type.basic_type == bt_Union
2923 || coff_type.basic_type == bt_Enum)
2925 if (coff_tag == (char *) NULL)
2927 as_warn ("No tag specified for %s", name);
2931 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2932 coff_type.basic_type);
2935 if (coff_is_function)
2937 last_func_type_info = coff_type;
2938 last_func_sym_value = coff_sym_value;
2942 indx = add_aux_sym_tir (&coff_type,
2944 &cur_file_ptr->thash_head[0]);
2947 /* Do any last minute adjustments that are necessary. */
2948 switch (coff_symbol_typ)
2953 /* For the beginning of structs, unions, and enumerations, the
2954 size info needs to be passed in the value field. */
2956 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2959 as_warn ("Bad COFF debugging information");
2963 coff_value = coff_type.sizes[0];
2965 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2968 /* For the end of structs, unions, and enumerations, omit the
2969 name which is always ".eos". This needs to be done last, so
2970 that any error reporting above gives the correct name. */
2973 name = (char *) NULL;
2975 coff_inside_enumeration = 0;
2978 /* Members of structures and unions that aren't bitfields, need
2979 to adjust the value from a byte offset to a bit offset.
2980 Members of enumerations do not have the value adjusted, and
2981 can be distinguished by indx == indexNil. For enumerations,
2982 update the maximum enumeration value. */
2984 if (! coff_type.bitfield && ! coff_inside_enumeration)
2990 /* Add the symbol. */
2991 sym = add_ecoff_symbol (name,
2996 (symint_t) coff_value,
2999 /* deal with struct, union, and enum tags. */
3000 if (coff_symbol_typ == st_Block)
3002 /* Create or update the tag information. */
3003 tag_t *tag_ptr = get_tag (name,
3005 coff_type.basic_type);
3008 /* Remember any forward references. */
3009 for (pf = &sym->forward_ref;
3010 *pf != (forward_t *) NULL;
3013 *pf = tag_ptr->forward_ref;
3014 tag_ptr->forward_ref = (forward_t *) NULL;
3018 /* Parse .end directives. */
3021 ecoff_directive_end (ignore)
3029 if (cur_file_ptr == (efdr_t *) NULL)
3031 as_warn (".end directive without a preceding .file directive");
3032 demand_empty_rest_of_line ();
3036 if (cur_proc_ptr == (proc_t *) NULL)
3038 as_warn (".end directive without a preceding .ent directive");
3039 demand_empty_rest_of_line ();
3043 name = input_line_pointer;
3044 name_end = get_symbol_end ();
3047 if (! is_name_beginner (ch))
3049 as_warn (".end directive has no name");
3050 *input_line_pointer = name_end;
3051 demand_empty_rest_of_line ();
3055 /* The value is the distance between the .end directive and the
3056 corresponding symbol. We create a fake symbol to hold the
3057 current location, and put in the offset when we write out the
3059 ent = symbol_find (name);
3060 if (ent == (symbolS *) NULL)
3061 as_warn (".end directive names unknown symbol");
3064 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3065 symbol_new ("L0\001", now_seg,
3066 (valueT) frag_now_fix (),
3068 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3070 if (stabs_seen && generate_asm_lineno)
3074 n = xmalloc (strlen (name) + 4);
3077 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
3078 ent, (bfd_vma) 0, 0,
3079 ECOFF_MARK_STAB (N_FUN));
3083 cur_proc_ptr = (proc_t *) NULL;
3085 *input_line_pointer = name_end;
3086 demand_empty_rest_of_line ();
3089 /* Parse .ent directives. */
3092 ecoff_directive_ent (ignore)
3099 if (cur_file_ptr == (efdr_t *) NULL)
3100 add_file ((const char *) NULL, 0, 1);
3102 if (cur_proc_ptr != (proc_t *) NULL)
3104 as_warn ("second .ent directive found before .end directive");
3105 demand_empty_rest_of_line ();
3109 name = input_line_pointer;
3110 name_end = get_symbol_end ();
3113 if (! is_name_beginner (ch))
3115 as_warn (".ent directive has no name");
3116 *input_line_pointer = name_end;
3117 demand_empty_rest_of_line ();
3121 add_procedure (name);
3123 *input_line_pointer = name_end;
3125 /* The .ent directive is sometimes followed by a number. I'm not
3126 really sure what the number means. I don't see any way to store
3127 the information in the PDR. The Irix 4 assembler seems to ignore
3130 if (*input_line_pointer == ',')
3132 ++input_line_pointer;
3135 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3136 (void) get_absolute_expression ();
3138 demand_empty_rest_of_line ();
3141 /* Parse .extern directives. */
3144 ecoff_directive_extern (ignore)
3152 name = input_line_pointer;
3153 c = get_symbol_end ();
3154 symbolp = symbol_find_or_make (name);
3155 *input_line_pointer = c;
3157 S_SET_EXTERNAL (symbolp);
3159 if (*input_line_pointer == ',')
3160 ++input_line_pointer;
3161 size = get_absolute_expression ();
3163 symbolp->ecoff_extern_size = size;
3166 /* Parse .file directives. */
3169 ecoff_directive_file (ignore)
3176 if (cur_proc_ptr != (proc_t *) NULL)
3178 as_warn ("No way to handle .file within .ent/.end section");
3179 demand_empty_rest_of_line ();
3183 indx = (int) get_absolute_expression ();
3185 /* FIXME: we don't have to save the name here. */
3186 name = demand_copy_C_string (&len);
3188 add_file (name, indx - 1, 0);
3190 demand_empty_rest_of_line ();
3193 /* Parse .fmask directives. */
3196 ecoff_directive_fmask (ignore)
3201 if (cur_proc_ptr == (proc_t *) NULL)
3203 as_warn (".fmask outside of .ent");
3204 demand_empty_rest_of_line ();
3208 if (get_absolute_expression_and_terminator (&val) != ',')
3210 as_warn ("Bad .fmask directive");
3211 --input_line_pointer;
3212 demand_empty_rest_of_line ();
3216 cur_proc_ptr->pdr.fregmask = val;
3217 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3219 demand_empty_rest_of_line ();
3222 /* Parse .frame directives. */
3225 ecoff_directive_frame (ignore)
3230 if (cur_proc_ptr == (proc_t *) NULL)
3232 as_warn (".frame outside of .ent");
3233 demand_empty_rest_of_line ();
3237 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3240 if (*input_line_pointer++ != ','
3241 || get_absolute_expression_and_terminator (&val) != ',')
3243 as_warn ("Bad .frame directive");
3244 --input_line_pointer;
3245 demand_empty_rest_of_line ();
3249 cur_proc_ptr->pdr.frameoffset = val;
3251 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3253 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3254 to Sandro. I don't yet know where this value should be stored, if
3256 demand_empty_rest_of_line ();
3262 /* Parse .mask directives. */
3265 ecoff_directive_mask (ignore)
3270 if (cur_proc_ptr == (proc_t *) NULL)
3272 as_warn (".mask outside of .ent");
3273 demand_empty_rest_of_line ();
3277 if (get_absolute_expression_and_terminator (&val) != ',')
3279 as_warn ("Bad .mask directive");
3280 --input_line_pointer;
3281 demand_empty_rest_of_line ();
3285 cur_proc_ptr->pdr.regmask = val;
3286 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3288 demand_empty_rest_of_line ();
3291 /* Parse .loc directives. */
3294 ecoff_directive_loc (ignore)
3297 lineno_list_t *list;
3300 if (cur_file_ptr == (efdr_t *) NULL)
3302 as_warn (".loc before .file");
3303 demand_empty_rest_of_line ();
3307 if (now_seg != text_section)
3309 as_warn (".loc outside of .text");
3310 demand_empty_rest_of_line ();
3314 /* Skip the file number. */
3316 get_absolute_expression ();
3319 lineno = get_absolute_expression ();
3323 listing_source_line (lineno);
3326 /* If we're building stabs, then output a special label rather than
3327 ECOFF line number info. */
3330 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3331 symbol_new ("L0\001", now_seg,
3332 (valueT) frag_now_fix (),
3334 (bfd_vma) 0, 0, lineno);
3338 list = allocate_lineno_list ();
3340 list->next = (lineno_list_t *) NULL;
3341 list->file = cur_file_ptr;
3342 list->proc = cur_proc_ptr;
3343 list->frag = frag_now;
3344 list->paddr = frag_now_fix ();
3345 list->lineno = lineno;
3347 /* We don't want to merge files which have line numbers. */
3348 cur_file_ptr->fdr.fMerge = 0;
3350 /* A .loc directive will sometimes appear before a .ent directive,
3351 which means that cur_proc_ptr will be NULL here. Arrange to
3353 if (cur_proc_ptr == (proc_t *) NULL)
3357 pl = &noproc_lineno;
3358 while (*pl != (lineno_list_t *) NULL)
3365 *last_lineno_ptr = list;
3366 last_lineno_ptr = &list->next;
3370 /* The MIPS assembler sometimes inserts nop instructions in the
3371 instruction stream. When this happens, we must patch up the .loc
3372 information so that it points to the instruction after the nop. */
3375 ecoff_fix_loc (old_frag, old_frag_offset)
3377 unsigned long old_frag_offset;
3379 if (last_lineno != NULL
3380 && last_lineno->frag == old_frag
3381 && last_lineno->paddr == old_frag_offset)
3383 last_lineno->frag = frag_now;
3384 last_lineno->paddr = frag_now_fix ();
3388 /* Make sure the @stabs symbol is emitted. */
3396 /* Add a dummy @stabs dymbol. */
3398 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3400 (bfd_vma) 0, (symint_t) -1,
3401 ECOFF_MARK_STAB (0));
3405 /* Parse .weakext directives. */
3408 ecoff_directive_weakext (ignore)
3416 name = input_line_pointer;
3417 c = get_symbol_end ();
3418 symbolP = symbol_find_or_make (name);
3419 *input_line_pointer = c;
3423 if (*input_line_pointer == ',')
3425 if (S_IS_DEFINED (symbolP))
3427 as_bad ("Ignoring attempt to redefine symbol `%s'.",
3428 S_GET_NAME (symbolP));
3429 ignore_rest_of_line ();
3433 ++input_line_pointer;
3435 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3438 if (exp.X_op != O_symbol)
3440 as_bad ("bad .weakext directive");
3441 ignore_rest_of_line();
3444 symbolP->sy_value = exp;
3448 S_SET_WEAK (symbolP);
3450 demand_empty_rest_of_line ();
3453 /* Handle .stabs directives. The actual parsing routine is done by a
3454 generic routine. This routine is called via OBJ_PROCESS_STAB.
3455 When this is called, input_line_pointer will be pointing at the
3456 value field of the stab.
3458 .stabs directives have five fields:
3459 "string" a string, encoding the type information.
3460 code a numeric code, defined in <stab.h>
3462 desc a zero or line number
3463 value a numeric value or an address.
3465 If the value is relocatable, we transform this into:
3466 iss points as an index into string space
3467 value value from lookup of the name
3468 st st from lookup of the name
3469 sc sc from lookup of the name
3470 index code|CODE_MASK
3472 If the value is not relocatable, we transform this into:
3473 iss points as an index into string space
3477 index code|CODE_MASK
3479 .stabn directives have four fields (string is null):
3480 code a numeric code, defined in <stab.h>
3482 desc a zero or a line number
3483 value a numeric value or an address. */
3486 ecoff_stab (sec, what, string, type, other, desc)
3494 efdr_t *save_file_ptr = cur_file_ptr;
3501 localsym_t *hold = NULL;
3503 ecoff_debugging_seen = 1;
3505 /* We don't handle .stabd. */
3506 if (what != 's' && what != 'n')
3508 as_bad (".stab%c is not supported", what);
3512 /* A .stabn uses a null name, not an empty string. */
3516 /* We ignore the other field. */
3518 as_warn (".stab%c: ignoring non-zero other field", what);
3520 /* Make sure we have a current file. */
3521 if (cur_file_ptr == (efdr_t *) NULL)
3523 add_file ((const char *) NULL, 0, 1);
3524 save_file_ptr = cur_file_ptr;
3527 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3529 if (stabs_seen == 0)
3532 /* Line number stabs are handled differently, since they have two
3533 values, the line number and the address of the label. We use the
3534 index field (aka desc) to hold the line number, and the value
3535 field to hold the address. The symbol type is st_Label, which
3536 should be different from the other stabs, so that gdb can
3538 if (type == N_SLINE)
3546 listing_source_line ((unsigned int) desc);
3549 dummy_symr.index = desc;
3550 if (dummy_symr.index != desc)
3552 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3557 name = input_line_pointer;
3558 name_end = get_symbol_end ();
3560 sym = symbol_find_or_make (name);
3561 *input_line_pointer = name_end;
3572 if (listing && (type == N_SO || type == N_SOL))
3573 listing_source_file (string);
3576 if (isdigit (*input_line_pointer)
3577 || *input_line_pointer == '-'
3578 || *input_line_pointer == '+')
3582 sym = (symbolS *) NULL;
3583 value = get_absolute_expression ();
3586 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3588 as_warn ("Illegal .stab%c directive, bad character", what);
3599 if (exp.X_op == O_constant)
3602 value = exp.X_add_number;
3605 else if (exp.X_op == O_symbol)
3607 sym = exp.X_add_symbol;
3609 addend = exp.X_add_number;
3613 as_bad (".stabs expression too complex");
3620 indx = ECOFF_MARK_STAB (type);
3623 /* Don't store the stabs symbol we are creating as the type of the
3624 ECOFF symbol. We want to compute the type of the ECOFF symbol
3626 if (sym != (symbolS *) NULL)
3627 hold = sym->ecoff_symbol;
3629 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3631 if (sym != (symbolS *) NULL)
3632 sym->ecoff_symbol = hold;
3634 /* Restore normal file type. */
3635 cur_file_ptr = save_file_ptr;
3638 /* Frob an ECOFF symbol. Small common symbols go into a special
3639 .scommon section rather than bfd_com_section. */
3642 ecoff_frob_symbol (sym)
3645 if (S_IS_COMMON (sym)
3646 && S_GET_VALUE (sym) > 0
3647 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3649 static asection scom_section;
3650 static asymbol scom_symbol;
3652 /* We must construct a fake section similar to bfd_com_section
3653 but with the name .scommon. */
3654 if (scom_section.name == NULL)
3656 scom_section = bfd_com_section;
3657 scom_section.name = ".scommon";
3658 scom_section.output_section = &scom_section;
3659 scom_section.symbol = &scom_symbol;
3660 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3661 scom_symbol = *bfd_com_section.symbol;
3662 scom_symbol.name = ".scommon";
3663 scom_symbol.section = &scom_section;
3665 S_SET_SEGMENT (sym, &scom_section);
3668 /* Double check weak symbols. */
3669 if (sym->bsym->flags & BSF_WEAK)
3671 if (S_IS_COMMON (sym))
3672 as_bad ("Symbol `%s' can not be both weak and common",
3677 /* Add bytes to the symbolic information buffer. */
3680 ecoff_add_bytes (buf, bufend, bufptr, need)
3690 need -= *bufend - bufptr;
3691 if (need < PAGE_SIZE)
3693 want = (*bufend - *buf) + need;
3694 *buf = xrealloc (*buf, want);
3695 *bufend = *buf + want;
3699 /* Adjust the symbolic information buffer to the alignment required
3700 for the ECOFF target debugging information. */
3702 static unsigned long
3703 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3704 const struct ecoff_debug_swap *backend;
3707 unsigned long offset;
3710 bfd_size_type align;
3712 align = backend->debug_align;
3713 if ((offset & (align - 1)) != 0)
3717 add = align - (offset & (align - 1));
3718 if (*bufend - (*buf + offset) < add)
3719 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3720 memset (*buf + offset, 0, add);
3722 if (bufptrptr != (char **) NULL)
3723 *bufptrptr = *buf + offset;
3729 /* Build the line number information. */
3731 static unsigned long
3732 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3733 const struct ecoff_debug_swap *backend;
3736 unsigned long offset;
3740 register lineno_list_t *l;
3741 lineno_list_t *last;
3747 lineno_list_t first;
3749 if (linecntptr != (long *) NULL)
3752 bufptr = *buf + offset;
3754 file = (efdr_t *) NULL;
3755 proc = (proc_t *) NULL;
3756 last = (lineno_list_t *) NULL;
3761 /* For some reason the address of the first procedure is ignored
3762 when reading line numbers. This doesn't matter if the address of
3763 the first procedure is 0, but when gcc is generating MIPS
3764 embedded PIC code, it will put strings in the .text section
3765 before the first procedure. We cope by inserting a dummy line if
3766 the address of the first procedure is not 0. Hopefully this
3767 won't screw things up too badly. */
3768 if (first_proc_ptr != (proc_t *) NULL
3769 && first_lineno != (lineno_list_t *) NULL
3770 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3771 + bfd_get_section_vma (stdoutput,
3772 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3775 first.file = first_lineno->file;
3776 first.proc = first_lineno->proc;
3777 first.frag = &zero_address_frag;
3781 first.next = first_lineno;
3782 first_lineno = &first;
3785 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3790 /* Get the offset to the memory address of the next line number
3791 (in words). Do this first, so that we can skip ahead to the
3792 next useful line number entry. */
3793 if (l->next == (lineno_list_t *) NULL)
3795 /* We want a count of zero, but it will be decremented
3796 before it is used. */
3799 else if (l->next->frag->fr_address + l->next->paddr
3800 > l->frag->fr_address + l->paddr)
3802 count = ((l->next->frag->fr_address + l->next->paddr
3803 - (l->frag->fr_address + l->paddr))
3808 /* Don't change last, so we still get the right delta. */
3812 if (l->file != file || l->proc != proc)
3814 if (l->proc != proc && proc != (proc_t *) NULL)
3815 proc->pdr.lnHigh = last->lineno;
3816 if (l->file != file && file != (efdr_t *) NULL)
3818 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3819 file->fdr.cline = totcount + count;
3820 if (linecntptr != (long *) NULL)
3821 *linecntptr += totcount + count;
3825 if (l->file != file)
3827 efdr_t *last_file = file;
3830 if (last_file != (efdr_t *) NULL)
3832 = last_file->fdr.ilineBase + last_file->fdr.cline;
3834 file->fdr.ilineBase = 0;
3835 file->fdr.cbLineOffset = c;
3837 if (l->proc != proc)
3840 if (proc != (proc_t *) NULL)
3842 proc->pdr.lnLow = l->lineno;
3843 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3844 proc->pdr.iline = totcount;
3848 last = (lineno_list_t *) NULL;
3853 /* Get the offset to this line number. */
3854 if (last == (lineno_list_t *) NULL)
3857 delta = l->lineno - last->lineno;
3859 /* Put in the offset to this line number. */
3864 /* 1 is added to each count read. */
3866 /* We can only adjust the word count by up to 15 words at a
3878 if (delta >= -7 && delta <= 7)
3880 if (bufptr >= *bufend)
3881 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3882 *bufptr++ = setcount + (delta << 4);
3890 if (*bufend - bufptr < 3)
3891 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3892 *bufptr++ = setcount + (8 << 4);
3893 if (delta < -0x8000)
3898 else if (delta > 0x7fff)
3908 *bufptr++ = set >> 8;
3909 *bufptr++ = set & 0xffff;
3914 /* Finish adjusting the count. */
3917 if (bufptr >= *bufend)
3918 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3919 /* 1 is added to each count read. */
3938 if (proc != (proc_t *) NULL)
3939 proc->pdr.lnHigh = last->lineno;
3940 if (file != (efdr_t *) NULL)
3942 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3943 file->fdr.cline = totcount;
3946 if (linecntptr != (long *) NULL)
3947 *linecntptr += totcount;
3949 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3954 /* Build and swap out the symbols. */
3956 static unsigned long
3957 ecoff_build_symbols (backend, buf, bufend, offset)
3958 const struct ecoff_debug_swap *backend;
3961 unsigned long offset;
3963 const bfd_size_type external_sym_size = backend->external_sym_size;
3964 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3965 = backend->swap_sym_out;
3968 vlinks_t *file_link;
3970 sym_out = *buf + offset;
3974 /* The symbols are stored by file. */
3975 for (file_link = file_desc.first;
3976 file_link != (vlinks_t *) NULL;
3977 file_link = file_link->next)
3984 if (file_link->next == (vlinks_t *) NULL)
3985 fil_cnt = file_desc.objects_last_page;
3987 fil_cnt = file_desc.objects_per_page;
3988 fil_ptr = file_link->datum->file;
3989 fil_end = fil_ptr + fil_cnt;
3990 for (; fil_ptr < fil_end; fil_ptr++)
3994 fil_ptr->fdr.isymBase = isym;
3996 for (sym_link = fil_ptr->symbols.first;
3997 sym_link != (vlinks_t *) NULL;
3998 sym_link = sym_link->next)
4001 localsym_t *sym_ptr;
4002 localsym_t *sym_end;
4004 if (sym_link->next == (vlinks_t *) NULL)
4005 sym_cnt = fil_ptr->symbols.objects_last_page;
4007 sym_cnt = fil_ptr->symbols.objects_per_page;
4008 sym_ptr = sym_link->datum->sym;
4009 sym_end = sym_ptr + sym_cnt;
4010 for (; sym_ptr < sym_end; sym_ptr++)
4016 know (sym_ptr->file_ptr == fil_ptr);
4018 /* If there is no associated gas symbol, then this
4019 is a pure debugging symbol. We have already
4020 added the name (if any) to fil_ptr->strings.
4021 Otherwise we must decide whether this is an
4022 external or a local symbol (actually, it may be
4023 both if the local provides additional debugging
4024 information for the external). */
4026 as_sym = sym_ptr->as_sym;
4027 if (as_sym != (symbolS *) NULL)
4031 /* The value of a block start symbol is the
4032 offset from the start of the procedure. For
4033 other symbols we just use the gas value (but
4034 we must offset it by the vma of the section,
4035 just as BFD does, because BFD will not see
4037 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4038 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4042 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4043 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4044 if (S_GET_SEGMENT (as_sym)
4045 != S_GET_SEGMENT (begin_sym))
4046 as_warn (".begin/.bend in different segments");
4047 sym_ptr->ecoff_sym.asym.value =
4048 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4051 sym_ptr->ecoff_sym.asym.value =
4052 (S_GET_VALUE (as_sym)
4053 + bfd_get_section_vma (stdoutput,
4054 S_GET_SEGMENT (as_sym))
4057 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4059 /* Set st_Proc to st_StaticProc for local
4061 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4062 && S_IS_DEFINED (as_sym)
4063 && ! S_IS_EXTERNAL (as_sym)
4064 && ! S_IS_WEAK (as_sym))
4065 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4067 /* Get the type and storage class based on where
4068 the symbol actually wound up. Traditionally,
4069 N_LBRAC and N_RBRAC are *not* relocated. */
4070 indx = sym_ptr->ecoff_sym.asym.index;
4071 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4072 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4073 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4074 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4075 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4078 const char *segname;
4082 seg = S_GET_SEGMENT (as_sym);
4083 segname = segment_name (seg);
4085 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4086 && (S_IS_EXTERNAL (as_sym)
4087 || S_IS_WEAK (as_sym)
4088 || ! S_IS_DEFINED (as_sym)))
4090 if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
4095 else if (seg == text_section)
4100 if (! S_IS_DEFINED (as_sym))
4102 if (as_sym->ecoff_extern_size == 0
4103 || (as_sym->ecoff_extern_size
4104 > bfd_get_gp_size (stdoutput)))
4109 sym_ptr->ecoff_sym.asym.value =
4110 as_sym->ecoff_extern_size;
4113 S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
4116 else if (S_IS_COMMON (as_sym))
4118 if (S_GET_VALUE (as_sym) > 0
4119 && (S_GET_VALUE (as_sym)
4120 <= bfd_get_gp_size (stdoutput)))
4125 else if (seg == text_section)
4127 else if (seg == data_section)
4129 else if (strcmp (segname, ".rdata") == 0
4130 || strcmp (segname, ".rodata") == 0)
4132 else if (strcmp (segname, ".sdata") == 0)
4134 else if (seg == bss_section)
4136 else if (strcmp (segname, ".sbss") == 0)
4138 else if (seg == &bfd_abs_section)
4142 /* This must be a user named section.
4143 This is not possible in ECOFF, but it
4148 sym_ptr->ecoff_sym.asym.st = (int) st;
4149 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4152 /* This is just an external symbol if it is
4153 outside a procedure and it has a type.
4154 FIXME: g++ will generate symbols which have
4155 different names in the debugging information
4156 than the actual symbol. Should we handle
4158 if ((S_IS_EXTERNAL (as_sym)
4159 || S_IS_WEAK (as_sym)
4160 || ! S_IS_DEFINED (as_sym))
4161 && sym_ptr->proc_ptr == (proc_t *) NULL
4162 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4163 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4166 /* If an st_end symbol has an associated gas
4167 symbol, then it is a local label created for
4168 a .bend or .end directive. Stabs line
4169 numbers will have \001 in the names. */
4171 && sym_ptr->ecoff_sym.asym.st != st_End
4172 && strchr (sym_ptr->name, '\001') == 0)
4173 sym_ptr->ecoff_sym.asym.iss =
4174 add_string (&fil_ptr->strings,
4180 /* We now know the index of this symbol; fill in
4181 locations that have been waiting for that
4183 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4185 localsym_t *begin_ptr;
4189 begin_ptr = sym_ptr->begin_ptr;
4190 know (begin_ptr->sym_index != -1);
4191 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4192 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4193 sym_ptr->ecoff_sym.asym.iss =
4194 begin_ptr->ecoff_sym.asym.iss;
4196 begin_type = begin_ptr->ecoff_sym.asym.st;
4197 if (begin_type == st_File
4198 || begin_type == st_Block)
4200 begin_ptr->ecoff_sym.asym.index =
4201 isym - ifilesym + 1;
4202 (*swap_sym_out) (stdoutput,
4203 &begin_ptr->ecoff_sym.asym,
4206 + (begin_ptr->sym_index
4207 * external_sym_size)));
4211 know (begin_ptr->index_ptr != (aux_t *) NULL);
4212 begin_ptr->index_ptr->data.isym =
4213 isym - ifilesym + 1;
4216 /* The value of the symbol marking the end of a
4217 procedure is the size of the procedure. The
4218 value of the symbol marking the end of a
4219 block is the offset from the start of the
4220 procedure to the block. */
4221 if (begin_type == st_Proc
4222 || begin_type == st_StaticProc)
4224 know (as_sym != (symbolS *) NULL);
4225 know (begin_ptr->as_sym != (symbolS *) NULL);
4226 if (S_GET_SEGMENT (as_sym)
4227 != S_GET_SEGMENT (begin_ptr->as_sym))
4228 as_warn (".begin/.bend in different segments");
4229 sym_ptr->ecoff_sym.asym.value =
4230 (S_GET_VALUE (as_sym)
4231 - S_GET_VALUE (begin_ptr->as_sym));
4233 S_SET_SIZE (begin_ptr->as_sym,
4234 sym_ptr->ecoff_sym.asym.value);
4237 else if (begin_type == st_Block
4238 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4242 know (as_sym != (symbolS *) NULL);
4243 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4244 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4245 if (S_GET_SEGMENT (as_sym)
4246 != S_GET_SEGMENT (begin_sym))
4247 as_warn (".begin/.bend in different segments");
4248 sym_ptr->ecoff_sym.asym.value =
4249 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4253 for (f = sym_ptr->forward_ref;
4254 f != (forward_t *) NULL;
4258 f->ifd_ptr->data.isym = fil_ptr->file_index;
4259 f->index_ptr->data.rndx.index = isym - ifilesym;
4264 if (*bufend - sym_out < external_sym_size)
4265 sym_out = ecoff_add_bytes (buf, bufend,
4268 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4270 sym_out += external_sym_size;
4272 sym_ptr->sym_index = isym;
4274 if (sym_ptr->proc_ptr != (proc_t *) NULL
4275 && sym_ptr->proc_ptr->sym == sym_ptr)
4276 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4281 /* Record the local symbol index and file number in
4282 case this is an external symbol. Note that this
4283 destroys the asym.index field. */
4284 if (as_sym != (symbolS *) NULL
4285 && as_sym->ecoff_symbol == sym_ptr)
4287 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4288 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4290 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4291 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4295 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4299 return offset + isym * external_sym_size;
4302 /* Swap out the procedure information. */
4304 static unsigned long
4305 ecoff_build_procs (backend, buf, bufend, offset)
4306 const struct ecoff_debug_swap *backend;
4309 unsigned long offset;
4311 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4312 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4313 = backend->swap_pdr_out;
4316 vlinks_t *file_link;
4318 pdr_out = *buf + offset;
4322 /* The procedures are stored by file. */
4323 for (file_link = file_desc.first;
4324 file_link != (vlinks_t *) NULL;
4325 file_link = file_link->next)
4331 if (file_link->next == (vlinks_t *) NULL)
4332 fil_cnt = file_desc.objects_last_page;
4334 fil_cnt = file_desc.objects_per_page;
4335 fil_ptr = file_link->datum->file;
4336 fil_end = fil_ptr + fil_cnt;
4337 for (; fil_ptr < fil_end; fil_ptr++)
4339 vlinks_t *proc_link;
4342 fil_ptr->fdr.ipdFirst = iproc;
4344 for (proc_link = fil_ptr->procs.first;
4345 proc_link != (vlinks_t *) NULL;
4346 proc_link = proc_link->next)
4352 if (proc_link->next == (vlinks_t *) NULL)
4353 prc_cnt = fil_ptr->procs.objects_last_page;
4355 prc_cnt = fil_ptr->procs.objects_per_page;
4356 proc_ptr = proc_link->datum->proc;
4357 proc_end = proc_ptr + prc_cnt;
4358 for (; proc_ptr < proc_end; proc_ptr++)
4363 adr_sym = proc_ptr->sym->as_sym;
4364 adr = (S_GET_VALUE (adr_sym)
4365 + bfd_get_section_vma (stdoutput,
4366 S_GET_SEGMENT (adr_sym)));
4369 /* This code used to force the adr of the very
4370 first fdr to be 0. However, the native tools
4371 don't do that, and I can't remember why it
4372 used to work that way, so I took it out. */
4373 fil_ptr->fdr.adr = adr;
4376 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4377 if (*bufend - pdr_out < external_pdr_size)
4378 pdr_out = ecoff_add_bytes (buf, bufend,
4381 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4382 pdr_out += external_pdr_size;
4386 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4390 return offset + iproc * external_pdr_size;
4393 /* Swap out the aux information. */
4395 static unsigned long
4396 ecoff_build_aux (backend, buf, bufend, offset)
4397 const struct ecoff_debug_swap *backend;
4400 unsigned long offset;
4403 union aux_ext *aux_out;
4405 vlinks_t *file_link;
4407 bigendian = bfd_big_endian (stdoutput);
4409 aux_out = (union aux_ext *) (*buf + offset);
4413 /* The aux entries are stored by file. */
4414 for (file_link = file_desc.first;
4415 file_link != (vlinks_t *) NULL;
4416 file_link = file_link->next)
4422 if (file_link->next == (vlinks_t *) NULL)
4423 fil_cnt = file_desc.objects_last_page;
4425 fil_cnt = file_desc.objects_per_page;
4426 fil_ptr = file_link->datum->file;
4427 fil_end = fil_ptr + fil_cnt;
4428 for (; fil_ptr < fil_end; fil_ptr++)
4432 fil_ptr->fdr.fBigendian = bigendian;
4433 fil_ptr->fdr.iauxBase = iaux;
4434 for (aux_link = fil_ptr->aux_syms.first;
4435 aux_link != (vlinks_t *) NULL;
4436 aux_link = aux_link->next)
4442 if (aux_link->next == (vlinks_t *) NULL)
4443 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4445 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4446 aux_ptr = aux_link->datum->aux;
4447 aux_end = aux_ptr + aux_cnt;
4448 for (; aux_ptr < aux_end; aux_ptr++)
4450 if (*bufend - (char *) aux_out < 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 (*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 (*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 (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 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4658 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4659 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4660 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4663 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4667 /* Build the ECOFF debugging information. */
4670 ecoff_build_debug (hdr, bufp, backend)
4673 const struct ecoff_debug_swap *backend;
4675 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4680 efdr_t *hold_file_ptr;
4681 proc_t * hold_proc_ptr;
4685 unsigned long offset;
4687 /* Make sure we have a file. */
4688 if (first_file == (efdr_t *) NULL)
4689 add_file ((const char *) NULL, 0, 1);
4691 /* Handle any top level tags. */
4692 for (ptag = top_tag_head->first_tag;
4693 ptag != (tag_t *) NULL;
4696 if (ptag->forward_ref != (forward_t *) NULL)
4697 add_unknown_tag (ptag);
4699 ptag_next = ptag->same_block;
4700 ptag->hash_ptr->tag_ptr = ptag->same_name;
4704 free_thead (top_tag_head);
4706 /* Look through the symbols. Add debugging information for each
4707 symbol that has not already received it. */
4708 hold_file_ptr = cur_file_ptr;
4709 hold_proc_ptr = cur_proc_ptr;
4710 cur_proc_ptr = (proc_t *) NULL;
4711 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4713 if (sym->ecoff_symbol != NULL
4714 || sym->ecoff_file == (efdr_t *) NULL
4715 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4718 cur_file_ptr = sym->ecoff_file;
4719 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4720 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4722 cur_proc_ptr = hold_proc_ptr;
4723 cur_file_ptr = hold_file_ptr;
4725 /* Output an ending symbol for all the files. We have to do this
4726 here for the last file, so we may as well do it for all of the
4729 for (fil_ptr = first_file;
4730 fil_ptr != (efdr_t *) NULL;
4731 fil_ptr = fil_ptr->next_file)
4733 cur_file_ptr = fil_ptr;
4734 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4735 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4737 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4738 if (! end_warning && ! cur_file_ptr->fake)
4740 as_warn ("Missing .end or .bend at end of file");
4744 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4745 (void) add_ecoff_symbol ((const char *) NULL,
4753 /* Build the symbolic information. */
4755 buf = xmalloc (PAGE_SIZE);
4756 bufend = buf + PAGE_SIZE;
4758 /* Build the line number information. */
4759 hdr->cbLineOffset = offset;
4760 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4762 hdr->cbLine = offset - hdr->cbLineOffset;
4764 /* We don't use dense numbers at all. */
4766 hdr->cbDnOffset = 0;
4768 /* We can't build the PDR table until we have built the symbols,
4769 because a PDR contains a symbol index. However, we set aside
4770 space at this point. */
4771 hdr->ipdMax = proc_cnt;
4772 hdr->cbPdOffset = offset;
4773 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4774 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4775 proc_cnt * external_pdr_size);
4776 offset += proc_cnt * external_pdr_size;
4778 /* Build the local symbols. */
4779 hdr->cbSymOffset = offset;
4780 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4781 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4783 /* Building the symbols initializes the symbol index in the PDR's.
4784 Now we can swap out the PDR's. */
4785 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4787 /* We don't use optimization symbols. */
4789 hdr->cbOptOffset = 0;
4791 /* Swap out the auxiliary type information. */
4792 hdr->cbAuxOffset = offset;
4793 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4794 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4796 /* Copy out the local strings. */
4797 hdr->cbSsOffset = offset;
4798 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4799 hdr->issMax = offset - hdr->cbSsOffset;
4801 /* We don't use relative file descriptors. */
4803 hdr->cbRfdOffset = 0;
4805 /* Swap out the file descriptors. */
4806 hdr->cbFdOffset = offset;
4807 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4808 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4810 /* Set up the external symbols, which are handled by the BFD back
4813 hdr->cbSsExtOffset = 0;
4815 hdr->cbExtOffset = 0;
4818 know ((offset & (backend->debug_align - 1)) == 0);
4820 /* FIXME: This value should be determined from the .verstamp directive,
4821 with reasonable defaults in config files. */
4823 hdr->vstamp = 0x030b;
4825 hdr->vstamp = 0x020b;
4832 /* Allocate a cluster of pages. */
4834 #ifndef MALLOC_CHECK
4837 allocate_cluster (npages)
4838 unsigned long npages;
4840 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4844 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4847 memset (value, 0, npages * PAGE_USIZE);
4853 static page_t *cluster_ptr = NULL;
4854 static unsigned long pages_left = 0;
4856 #endif /* MALLOC_CHECK */
4858 /* Allocate one page (which is initialized to 0). */
4863 #ifndef MALLOC_CHECK
4865 if (pages_left == 0)
4867 pages_left = MAX_CLUSTER_PAGES;
4868 cluster_ptr = allocate_cluster (pages_left);
4872 return cluster_ptr++;
4874 #else /* MALLOC_CHECK */
4878 ptr = xmalloc (PAGE_USIZE);
4879 memset (ptr, 0, PAGE_USIZE);
4882 #endif /* MALLOC_CHECK */
4885 /* Allocate scoping information. */
4890 register scope_t *ptr;
4891 static scope_t initial_scope;
4893 #ifndef MALLOC_CHECK
4895 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4896 if (ptr != (scope_t *) NULL)
4897 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4900 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4901 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4903 if (unallocated == 0)
4905 unallocated = PAGE_SIZE / sizeof (scope_t);
4906 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4907 alloc_counts[(int)alloc_type_scope].total_pages++;
4910 ptr = &cur_page->scope[--unallocated];
4911 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4916 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4920 alloc_counts[(int)alloc_type_scope].total_alloc++;
4921 *ptr = initial_scope;
4925 /* Free scoping information. */
4931 alloc_counts[(int)alloc_type_scope].total_free++;
4933 #ifndef MALLOC_CHECK
4934 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4935 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4941 /* Allocate links for pages in a virtual array. */
4946 register vlinks_t *ptr;
4947 static vlinks_t initial_vlinks;
4949 #ifndef MALLOC_CHECK
4951 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4952 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4954 if (unallocated == 0)
4956 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4957 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4958 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4961 ptr = &cur_page->vlinks[--unallocated];
4962 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4966 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4970 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4971 *ptr = initial_vlinks;
4975 /* Allocate string hash buckets. */
4980 register shash_t *ptr;
4981 static shash_t initial_shash;
4983 #ifndef MALLOC_CHECK
4985 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4986 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4988 if (unallocated == 0)
4990 unallocated = PAGE_SIZE / sizeof (shash_t);
4991 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4992 alloc_counts[(int)alloc_type_shash].total_pages++;
4995 ptr = &cur_page->shash[--unallocated];
4996 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
5000 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5004 alloc_counts[(int)alloc_type_shash].total_alloc++;
5005 *ptr = initial_shash;
5009 /* Allocate type hash buckets. */
5014 register thash_t *ptr;
5015 static thash_t initial_thash;
5017 #ifndef MALLOC_CHECK
5019 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
5020 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
5022 if (unallocated == 0)
5024 unallocated = PAGE_SIZE / sizeof (thash_t);
5025 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
5026 alloc_counts[(int)alloc_type_thash].total_pages++;
5029 ptr = &cur_page->thash[--unallocated];
5030 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
5034 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5038 alloc_counts[(int)alloc_type_thash].total_alloc++;
5039 *ptr = initial_thash;
5043 /* Allocate structure, union, or enum tag information. */
5048 register tag_t *ptr;
5049 static tag_t initial_tag;
5051 #ifndef MALLOC_CHECK
5053 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5054 if (ptr != (tag_t *) NULL)
5055 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
5058 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
5059 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
5061 if (unallocated == 0)
5063 unallocated = PAGE_SIZE / sizeof (tag_t);
5064 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
5065 alloc_counts[(int)alloc_type_tag].total_pages++;
5068 ptr = &cur_page->tag[--unallocated];
5069 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
5074 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5078 alloc_counts[(int)alloc_type_tag].total_alloc++;
5083 /* Free scoping information. */
5089 alloc_counts[(int)alloc_type_tag].total_free++;
5091 #ifndef MALLOC_CHECK
5092 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5093 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
5099 /* Allocate forward reference to a yet unknown tag. */
5104 register forward_t *ptr;
5105 static forward_t initial_forward;
5107 #ifndef MALLOC_CHECK
5109 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
5110 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
5112 if (unallocated == 0)
5114 unallocated = PAGE_SIZE / sizeof (forward_t);
5115 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
5116 alloc_counts[(int)alloc_type_forward].total_pages++;
5119 ptr = &cur_page->forward[--unallocated];
5120 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
5124 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5128 alloc_counts[(int)alloc_type_forward].total_alloc++;
5129 *ptr = initial_forward;
5133 /* Allocate head of type hash list. */
5138 register thead_t *ptr;
5139 static thead_t initial_thead;
5141 #ifndef MALLOC_CHECK
5143 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5144 if (ptr != (thead_t *) NULL)
5145 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5148 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
5149 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
5151 if (unallocated == 0)
5153 unallocated = PAGE_SIZE / sizeof (thead_t);
5154 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
5155 alloc_counts[(int)alloc_type_thead].total_pages++;
5158 ptr = &cur_page->thead[--unallocated];
5159 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
5164 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5168 alloc_counts[(int)alloc_type_thead].total_alloc++;
5169 *ptr = initial_thead;
5173 /* Free scoping information. */
5179 alloc_counts[(int)alloc_type_thead].total_free++;
5181 #ifndef MALLOC_CHECK
5182 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5183 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5189 static lineno_list_t *
5190 allocate_lineno_list ()
5192 register lineno_list_t *ptr;
5193 static lineno_list_t initial_lineno_list;
5195 #ifndef MALLOC_CHECK
5197 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
5198 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
5200 if (unallocated == 0)
5202 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5203 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5204 alloc_counts[(int)alloc_type_lineno].total_pages++;
5207 ptr = &cur_page->lineno[--unallocated];
5208 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5212 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5216 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5217 *ptr = initial_lineno_list;
5222 ecoff_set_gp_prolog_size (sz)
5225 if (cur_proc_ptr == 0)
5228 cur_proc_ptr->pdr.gp_prologue = sz;
5229 if (cur_proc_ptr->pdr.gp_prologue != sz)
5231 as_warn ("GP prologue size exceeds field size, using 0 instead");
5232 cur_proc_ptr->pdr.gp_prologue = 0;
5235 cur_proc_ptr->pdr.gp_used = 1;
5239 generate_ecoff_stab (what, string, type, other, desc)
5246 efdr_t *save_file_ptr = cur_file_ptr;
5252 localsym_t *hold = NULL;
5254 /* We don't handle .stabd. */
5255 if (what != 's' && what != 'n')
5257 as_bad (".stab%c is not supported", what);
5261 /* We ignore the other field. */
5263 as_warn (".stab%c: ignoring non-zero other field", what);
5265 /* Make sure we have a current file. */
5266 if (cur_file_ptr == (efdr_t *) NULL)
5268 add_file ((const char *) NULL, 0, 1);
5269 save_file_ptr = cur_file_ptr;
5272 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5274 if (stabs_seen == 0)
5277 /* Line number stabs are handled differently, since they have two
5278 values, the line number and the address of the label. We use the
5279 index field (aka desc) to hold the line number, and the value
5280 field to hold the address. The symbol type is st_Label, which
5281 should be different from the other stabs, so that gdb can
5283 if (type == N_SLINE)
5289 listing_source_line ((unsigned int) desc);
5292 dummy_symr.index = desc;
5293 if (dummy_symr.index != desc)
5295 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5300 sym = symbol_find_or_make ((char *)string);
5309 if (listing && (type == N_SO || type == N_SOL))
5310 listing_source_file (string);
5313 sym = symbol_find_or_make ((char *)string);
5317 indx = ECOFF_MARK_STAB (type);
5320 /* Don't store the stabs symbol we are creating as the type of the
5321 ECOFF symbol. We want to compute the type of the ECOFF symbol
5323 if (sym != (symbolS *) NULL)
5324 hold = sym->ecoff_symbol;
5326 (void) add_ecoff_symbol (string, st, sc, sym, (bfd_vma) 0, value, indx);
5328 if (sym != (symbolS *) NULL)
5329 sym->ecoff_symbol = hold;
5331 /* Restore normal file type. */
5332 cur_file_ptr = save_file_ptr;
5336 ecoff_no_current_file ()
5338 return cur_file_ptr == (efdr_t *) NULL;
5342 ecoff_generate_asm_lineno (filename, lineno)
5343 const char *filename;
5346 lineno_list_t *list;
5348 /* this potential can cause problem, when we start to see stab half the
5349 way thru the file */
5352 ecoff_generate_asm_line_stab(filename, lineno);
5355 if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename))
5357 add_file (filename, 0, 1);
5358 generate_asm_lineno = 1;
5361 list = allocate_lineno_list ();
5363 list->next = (lineno_list_t *) NULL;
5364 list->file = cur_file_ptr;
5365 list->proc = cur_proc_ptr;
5366 list->frag = frag_now;
5367 list->paddr = frag_now_fix ();
5368 list->lineno = lineno;
5370 /* We don't want to merge files which have line numbers. */
5371 cur_file_ptr->fdr.fMerge = 0;
5373 /* A .loc directive will sometimes appear before a .ent directive,
5374 which means that cur_proc_ptr will be NULL here. Arrange to
5376 if (cur_proc_ptr == (proc_t *) NULL)
5380 pl = &noproc_lineno;
5381 while (*pl != (lineno_list_t *) NULL)
5388 *last_lineno_ptr = list;
5389 last_lineno_ptr = &list->next;
5393 static int line_label_cnt = 0;
5395 ecoff_generate_asm_line_stab (filename, lineno)
5401 if (strcmp (current_stabs_filename, filename))
5403 add_file (filename, 0, 1);
5404 generate_asm_lineno = 1;
5408 /* generate local label $LMnn */
5410 sprintf(ll, "$LM%d", line_label_cnt);
5413 /* generate stab for the line */
5414 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5418 #endif /* ECOFF_DEBUGGING */