1 /* ECOFF debugging support.
2 Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 good deal of it comes directly from mips-tfile.c, by Michael
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 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2356 add_file (name, 0, 0);
2357 generate_asm_lineno = 1;
2362 /* Convert storage class to string. */
2365 sc_to_string(storage_class)
2368 switch(storage_class)
2370 case sc_Nil: return "Nil,";
2371 case sc_Text: return "Text,";
2372 case sc_Data: return "Data,";
2373 case sc_Bss: return "Bss,";
2374 case sc_Register: return "Register,";
2375 case sc_Abs: return "Abs,";
2376 case sc_Undefined: return "Undefined,";
2377 case sc_CdbLocal: return "CdbLocal,";
2378 case sc_Bits: return "Bits,";
2379 case sc_CdbSystem: return "CdbSystem,";
2380 case sc_RegImage: return "RegImage,";
2381 case sc_Info: return "Info,";
2382 case sc_UserStruct: return "UserStruct,";
2383 case sc_SData: return "SData,";
2384 case sc_SBss: return "SBss,";
2385 case sc_RData: return "RData,";
2386 case sc_Var: return "Var,";
2387 case sc_Common: return "Common,";
2388 case sc_SCommon: return "SCommon,";
2389 case sc_VarRegister: return "VarRegister,";
2390 case sc_Variant: return "Variant,";
2391 case sc_SUndefined: return "SUndefined,";
2392 case sc_Init: return "Init,";
2393 case sc_Max: return "Max,";
2403 /* Convert symbol type to string. */
2406 st_to_string(symbol_type)
2411 case st_Nil: return "Nil,";
2412 case st_Global: return "Global,";
2413 case st_Static: return "Static,";
2414 case st_Param: return "Param,";
2415 case st_Local: return "Local,";
2416 case st_Label: return "Label,";
2417 case st_Proc: return "Proc,";
2418 case st_Block: return "Block,";
2419 case st_End: return "End,";
2420 case st_Member: return "Member,";
2421 case st_Typedef: return "Typedef,";
2422 case st_File: return "File,";
2423 case st_RegReloc: return "RegReloc,";
2424 case st_Forward: return "Forward,";
2425 case st_StaticProc: return "StaticProc,";
2426 case st_Constant: return "Constant,";
2427 case st_Str: return "String,";
2428 case st_Number: return "Number,";
2429 case st_Expr: return "Expr,";
2430 case st_Type: return "Type,";
2431 case st_Max: return "Max,";
2439 /* Parse .begin directives which have a label as the first argument
2440 which gives the location of the start of the block. */
2443 ecoff_directive_begin (ignore)
2449 if (cur_file_ptr == (efdr_t *) NULL)
2451 as_warn (".begin directive without a preceding .file directive");
2452 demand_empty_rest_of_line ();
2456 if (cur_proc_ptr == (proc_t *) NULL)
2458 as_warn (".begin directive without a preceding .ent directive");
2459 demand_empty_rest_of_line ();
2463 name = input_line_pointer;
2464 name_end = get_symbol_end ();
2466 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2467 symbol_find_or_make (name),
2468 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2470 *input_line_pointer = name_end;
2472 /* The line number follows, but we don't use it. */
2473 (void) get_absolute_expression ();
2474 demand_empty_rest_of_line ();
2477 /* Parse .bend directives which have a label as the first argument
2478 which gives the location of the end of the block. */
2481 ecoff_directive_bend (ignore)
2488 if (cur_file_ptr == (efdr_t *) NULL)
2490 as_warn (".bend directive without a preceding .file directive");
2491 demand_empty_rest_of_line ();
2495 if (cur_proc_ptr == (proc_t *) NULL)
2497 as_warn (".bend directive without a preceding .ent directive");
2498 demand_empty_rest_of_line ();
2502 name = input_line_pointer;
2503 name_end = get_symbol_end ();
2505 /* The value is the distance between the .bend directive and the
2506 corresponding symbol. We fill in the offset when we write out
2508 endsym = symbol_find (name);
2509 if (endsym == (symbolS *) NULL)
2510 as_warn (".bend directive names unknown symbol");
2512 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2513 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2515 *input_line_pointer = name_end;
2517 /* The line number follows, but we don't use it. */
2518 (void) get_absolute_expression ();
2519 demand_empty_rest_of_line ();
2522 /* COFF debugging information is provided as a series of directives
2523 (.def, .scl, etc.). We build up information as we read the
2524 directives in the following static variables, and file it away when
2525 we reach the .endef directive. */
2526 static char *coff_sym_name;
2527 static type_info_t coff_type;
2528 static sc_t coff_storage_class;
2529 static st_t coff_symbol_typ;
2530 static int coff_is_function;
2531 static char *coff_tag;
2532 static valueT coff_value;
2533 static symbolS *coff_sym_value;
2534 static bfd_vma coff_sym_addend;
2535 static int coff_inside_enumeration;
2537 /* Handle a .def directive: start defining a symbol. */
2540 ecoff_directive_def (ignore)
2546 ecoff_debugging_seen = 1;
2550 name = input_line_pointer;
2551 name_end = get_symbol_end ();
2553 if (coff_sym_name != (char *) NULL)
2554 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2555 else if (*name == '\0')
2556 as_warn ("Empty symbol name in .def; ignored");
2559 if (coff_sym_name != (char *) NULL)
2560 free (coff_sym_name);
2561 if (coff_tag != (char *) NULL)
2563 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2564 strcpy (coff_sym_name, name);
2565 coff_type = type_info_init;
2566 coff_storage_class = sc_Nil;
2567 coff_symbol_typ = st_Nil;
2568 coff_is_function = 0;
2569 coff_tag = (char *) NULL;
2571 coff_sym_value = (symbolS *) NULL;
2572 coff_sym_addend = 0;
2575 *input_line_pointer = name_end;
2577 demand_empty_rest_of_line ();
2580 /* Handle a .dim directive, used to give dimensions for an array. The
2581 arguments are comma separated numbers. mips-tfile assumes that
2582 there will not be more than 6 dimensions, and gdb won't read any
2583 more than that anyhow, so I will also make that assumption. */
2586 ecoff_directive_dim (ignore)
2592 if (coff_sym_name == (char *) NULL)
2594 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2595 demand_empty_rest_of_line ();
2599 for (i = 0; i < N_TQ; i++)
2602 dimens[i] = get_absolute_expression ();
2603 if (*input_line_pointer == ',')
2604 ++input_line_pointer;
2607 if (*input_line_pointer != '\n'
2608 && *input_line_pointer != ';')
2609 as_warn ("Badly formed .dim directive");
2617 /* The dimensions are stored away in reverse order. */
2620 if (coff_type.num_dims >= N_TQ)
2622 as_warn ("Too many .dim entries");
2625 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2626 ++coff_type.num_dims;
2629 demand_empty_rest_of_line ();
2632 /* Handle a .scl directive, which sets the COFF storage class of the
2636 ecoff_directive_scl (ignore)
2641 if (coff_sym_name == (char *) NULL)
2643 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2644 demand_empty_rest_of_line ();
2648 val = get_absolute_expression ();
2650 coff_symbol_typ = map_coff_sym_type[val];
2651 coff_storage_class = map_coff_storage[val];
2653 demand_empty_rest_of_line ();
2656 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2657 .size can have multiple arguments. We humor it, although gcc will
2658 never generate more than one argument. */
2661 ecoff_directive_size (ignore)
2667 if (coff_sym_name == (char *) NULL)
2669 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2670 demand_empty_rest_of_line ();
2674 for (i = 0; i < N_TQ; i++)
2677 sizes[i] = get_absolute_expression ();
2678 if (*input_line_pointer == ',')
2679 ++input_line_pointer;
2682 if (*input_line_pointer != '\n'
2683 && *input_line_pointer != ';')
2684 as_warn ("Badly formed .size directive");
2692 /* The sizes are stored away in reverse order. */
2695 if (coff_type.num_sizes >= N_TQ)
2697 as_warn ("Too many .size entries");
2700 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2701 ++coff_type.num_sizes;
2704 demand_empty_rest_of_line ();
2707 /* Handle the .type directive, which gives the COFF type of the
2711 ecoff_directive_type (ignore)
2718 if (coff_sym_name == (char *) NULL)
2720 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2721 demand_empty_rest_of_line ();
2725 val = get_absolute_expression ();
2727 coff_type.orig_type = BTYPE (val);
2728 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2730 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2731 while (val &~ N_BTMASK)
2733 if (tq_ptr == &coff_type.type_qualifiers[0])
2735 /* FIXME: We could handle this by setting the continued bit.
2736 There would still be a limit: the .type argument can not
2738 as_warn ("The type of %s is too complex; it will be simplified",
2744 else if (ISFCN (val))
2745 *--tq_ptr = tq_Proc;
2746 else if (ISARY (val))
2747 *--tq_ptr = tq_Array;
2749 as_fatal ("Unrecognized .type argument");
2754 tq_shft = &coff_type.type_qualifiers[0];
2755 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2756 *tq_shft++ = *tq_ptr++;
2758 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2760 /* If this is a function, ignore it, so that we don't get two
2761 entries (one from the .ent, and one for the .def that
2762 precedes it). Save the type information so that the end
2763 block can properly add it after the begin block index. For
2764 MIPS knows what reason, we must strip off the function type
2766 coff_is_function = 1;
2767 tq_shft[-1] = tq_Nil;
2770 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2771 *tq_shft++ = tq_Nil;
2773 demand_empty_rest_of_line ();
2776 /* Handle the .tag directive, which gives the name of a structure,
2780 ecoff_directive_tag (ignore)
2786 if (coff_sym_name == (char *) NULL)
2788 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2789 demand_empty_rest_of_line ();
2793 name = input_line_pointer;
2794 name_end = get_symbol_end ();
2796 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2797 strcpy (coff_tag, name);
2799 *input_line_pointer = name_end;
2801 demand_empty_rest_of_line ();
2804 /* Handle the .val directive, which gives the value of the symbol. It
2805 may be the name of a static or global symbol. */
2808 ecoff_directive_val (ignore)
2813 if (coff_sym_name == (char *) NULL)
2815 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2816 demand_empty_rest_of_line ();
2821 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2823 as_bad (".val expression is too copmlex");
2824 demand_empty_rest_of_line ();
2828 if (exp.X_op == O_constant)
2829 coff_value = exp.X_add_number;
2832 coff_sym_value = exp.X_add_symbol;
2833 coff_sym_addend = exp.X_add_number;
2836 demand_empty_rest_of_line ();
2839 /* Handle the .endef directive, which terminates processing of COFF
2840 debugging information for a symbol. */
2843 ecoff_directive_endef (ignore)
2850 demand_empty_rest_of_line ();
2852 if (coff_sym_name == (char *) NULL)
2854 as_warn (".endef pseudo-op used before .def; ignored");
2858 name = coff_sym_name;
2859 coff_sym_name = (char *) NULL;
2861 /* If the symbol is a static or external, we have already gotten the
2862 appropriate type and class, so make sure we don't override those
2863 values. This is needed because there are some type and classes
2864 that are not in COFF, such as short data, etc. */
2865 if (coff_sym_value != (symbolS *) NULL)
2867 coff_symbol_typ = st_Nil;
2868 coff_storage_class = sc_Nil;
2871 coff_type.extra_sizes = coff_tag != (char *) NULL;
2872 if (coff_type.num_dims > 0)
2874 int diff = coff_type.num_dims - coff_type.num_sizes;
2875 int i = coff_type.num_dims - 1;
2878 if (coff_type.num_sizes != 1 || diff < 0)
2880 as_warn ("Bad COFF debugging info");
2884 /* If this is an array, make sure the same number of dimensions
2885 and sizes were passed, creating extra sizes for multiply
2886 dimensioned arrays if not passed. */
2887 coff_type.extra_sizes = 0;
2890 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2893 coff_type.sizes[j] = (((j - diff) >= 0)
2894 ? coff_type.sizes[j - diff]
2899 coff_type.num_sizes = i + 1;
2900 for (i--; i >= 0; i--)
2901 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2903 : (coff_type.sizes[i + 1]
2904 / coff_type.dimensions[i + 1]));
2907 else if (coff_symbol_typ == st_Member
2908 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2910 /* Is this a bitfield? This is indicated by a structure memeber
2911 having a size field that isn't an array. */
2912 coff_type.bitfield = 1;
2915 /* Except for enumeration members & begin/ending of scopes, put the
2916 type word in the aux. symbol table. */
2917 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2919 else if (coff_inside_enumeration)
2920 indx = cur_file_ptr->void_type;
2923 if (coff_type.basic_type == bt_Struct
2924 || coff_type.basic_type == bt_Union
2925 || coff_type.basic_type == bt_Enum)
2927 if (coff_tag == (char *) NULL)
2929 as_warn ("No tag specified for %s", name);
2933 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2934 coff_type.basic_type);
2937 if (coff_is_function)
2939 last_func_type_info = coff_type;
2940 last_func_sym_value = coff_sym_value;
2944 indx = add_aux_sym_tir (&coff_type,
2946 &cur_file_ptr->thash_head[0]);
2949 /* Do any last minute adjustments that are necessary. */
2950 switch (coff_symbol_typ)
2955 /* For the beginning of structs, unions, and enumerations, the
2956 size info needs to be passed in the value field. */
2958 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2961 as_warn ("Bad COFF debugging information");
2965 coff_value = coff_type.sizes[0];
2967 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2970 /* For the end of structs, unions, and enumerations, omit the
2971 name which is always ".eos". This needs to be done last, so
2972 that any error reporting above gives the correct name. */
2975 name = (char *) NULL;
2977 coff_inside_enumeration = 0;
2980 /* Members of structures and unions that aren't bitfields, need
2981 to adjust the value from a byte offset to a bit offset.
2982 Members of enumerations do not have the value adjusted, and
2983 can be distinguished by indx == indexNil. For enumerations,
2984 update the maximum enumeration value. */
2986 if (! coff_type.bitfield && ! coff_inside_enumeration)
2992 /* Add the symbol. */
2993 sym = add_ecoff_symbol (name,
2998 (symint_t) coff_value,
3001 /* deal with struct, union, and enum tags. */
3002 if (coff_symbol_typ == st_Block)
3004 /* Create or update the tag information. */
3005 tag_t *tag_ptr = get_tag (name,
3007 coff_type.basic_type);
3010 /* Remember any forward references. */
3011 for (pf = &sym->forward_ref;
3012 *pf != (forward_t *) NULL;
3015 *pf = tag_ptr->forward_ref;
3016 tag_ptr->forward_ref = (forward_t *) NULL;
3020 /* Parse .end directives. */
3023 ecoff_directive_end (ignore)
3031 if (cur_file_ptr == (efdr_t *) NULL)
3033 as_warn (".end directive without a preceding .file directive");
3034 demand_empty_rest_of_line ();
3038 if (cur_proc_ptr == (proc_t *) NULL)
3040 as_warn (".end directive without a preceding .ent directive");
3041 demand_empty_rest_of_line ();
3045 name = input_line_pointer;
3046 name_end = get_symbol_end ();
3049 if (! is_name_beginner (ch))
3051 as_warn (".end directive has no name");
3052 *input_line_pointer = name_end;
3053 demand_empty_rest_of_line ();
3057 /* The value is the distance between the .end directive and the
3058 corresponding symbol. We create a fake symbol to hold the
3059 current location, and put in the offset when we write out the
3061 ent = symbol_find (name);
3062 if (ent == (symbolS *) NULL)
3063 as_warn (".end directive names unknown symbol");
3066 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3067 symbol_new ("L0\001", now_seg,
3068 (valueT) frag_now_fix (),
3070 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3072 if (stabs_seen && generate_asm_lineno)
3076 n = xmalloc (strlen (name) + 4);
3079 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
3080 ent, (bfd_vma) 0, 0,
3081 ECOFF_MARK_STAB (N_FUN));
3085 cur_proc_ptr = (proc_t *) NULL;
3087 *input_line_pointer = name_end;
3088 demand_empty_rest_of_line ();
3091 /* Parse .ent directives. */
3094 ecoff_directive_ent (ignore)
3101 if (cur_file_ptr == (efdr_t *) NULL)
3102 add_file ((const char *) NULL, 0, 1);
3104 if (cur_proc_ptr != (proc_t *) NULL)
3106 as_warn ("second .ent directive found before .end directive");
3107 demand_empty_rest_of_line ();
3111 name = input_line_pointer;
3112 name_end = get_symbol_end ();
3115 if (! is_name_beginner (ch))
3117 as_warn (".ent directive has no name");
3118 *input_line_pointer = name_end;
3119 demand_empty_rest_of_line ();
3123 add_procedure (name);
3125 *input_line_pointer = name_end;
3127 /* The .ent directive is sometimes followed by a number. I'm not
3128 really sure what the number means. I don't see any way to store
3129 the information in the PDR. The Irix 4 assembler seems to ignore
3132 if (*input_line_pointer == ',')
3134 ++input_line_pointer;
3137 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3138 (void) get_absolute_expression ();
3140 demand_empty_rest_of_line ();
3143 /* Parse .extern directives. */
3146 ecoff_directive_extern (ignore)
3154 name = input_line_pointer;
3155 c = get_symbol_end ();
3156 symbolp = symbol_find_or_make (name);
3157 *input_line_pointer = c;
3159 S_SET_EXTERNAL (symbolp);
3161 if (*input_line_pointer == ',')
3162 ++input_line_pointer;
3163 size = get_absolute_expression ();
3165 symbolp->ecoff_extern_size = size;
3168 /* Parse .file directives. */
3171 ecoff_directive_file (ignore)
3178 if (cur_proc_ptr != (proc_t *) NULL)
3180 as_warn ("No way to handle .file within .ent/.end section");
3181 demand_empty_rest_of_line ();
3185 indx = (int) get_absolute_expression ();
3187 /* FIXME: we don't have to save the name here. */
3188 name = demand_copy_C_string (&len);
3190 add_file (name, indx - 1, 0);
3192 demand_empty_rest_of_line ();
3195 /* Parse .fmask directives. */
3198 ecoff_directive_fmask (ignore)
3203 if (cur_proc_ptr == (proc_t *) NULL)
3205 as_warn (".fmask outside of .ent");
3206 demand_empty_rest_of_line ();
3210 if (get_absolute_expression_and_terminator (&val) != ',')
3212 as_warn ("Bad .fmask directive");
3213 --input_line_pointer;
3214 demand_empty_rest_of_line ();
3218 cur_proc_ptr->pdr.fregmask = val;
3219 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3221 demand_empty_rest_of_line ();
3224 /* Parse .frame directives. */
3227 ecoff_directive_frame (ignore)
3232 if (cur_proc_ptr == (proc_t *) NULL)
3234 as_warn (".frame outside of .ent");
3235 demand_empty_rest_of_line ();
3239 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3242 if (*input_line_pointer++ != ','
3243 || get_absolute_expression_and_terminator (&val) != ',')
3245 as_warn ("Bad .frame directive");
3246 --input_line_pointer;
3247 demand_empty_rest_of_line ();
3251 cur_proc_ptr->pdr.frameoffset = val;
3253 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3255 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3256 to Sandro. I don't yet know where this value should be stored, if
3258 demand_empty_rest_of_line ();
3264 /* Parse .mask directives. */
3267 ecoff_directive_mask (ignore)
3272 if (cur_proc_ptr == (proc_t *) NULL)
3274 as_warn (".mask outside of .ent");
3275 demand_empty_rest_of_line ();
3279 if (get_absolute_expression_and_terminator (&val) != ',')
3281 as_warn ("Bad .mask directive");
3282 --input_line_pointer;
3283 demand_empty_rest_of_line ();
3287 cur_proc_ptr->pdr.regmask = val;
3288 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3290 demand_empty_rest_of_line ();
3293 /* Parse .loc directives. */
3296 ecoff_directive_loc (ignore)
3299 lineno_list_t *list;
3302 if (cur_file_ptr == (efdr_t *) NULL)
3304 as_warn (".loc before .file");
3305 demand_empty_rest_of_line ();
3309 if (now_seg != text_section)
3311 as_warn (".loc outside of .text");
3312 demand_empty_rest_of_line ();
3316 /* Skip the file number. */
3318 get_absolute_expression ();
3321 lineno = get_absolute_expression ();
3325 listing_source_line (lineno);
3328 /* If we're building stabs, then output a special label rather than
3329 ECOFF line number info. */
3332 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3333 symbol_new ("L0\001", now_seg,
3334 (valueT) frag_now_fix (),
3336 (bfd_vma) 0, 0, lineno);
3340 list = allocate_lineno_list ();
3342 list->next = (lineno_list_t *) NULL;
3343 list->file = cur_file_ptr;
3344 list->proc = cur_proc_ptr;
3345 list->frag = frag_now;
3346 list->paddr = frag_now_fix ();
3347 list->lineno = lineno;
3349 /* We don't want to merge files which have line numbers. */
3350 cur_file_ptr->fdr.fMerge = 0;
3352 /* A .loc directive will sometimes appear before a .ent directive,
3353 which means that cur_proc_ptr will be NULL here. Arrange to
3355 if (cur_proc_ptr == (proc_t *) NULL)
3359 pl = &noproc_lineno;
3360 while (*pl != (lineno_list_t *) NULL)
3367 *last_lineno_ptr = list;
3368 last_lineno_ptr = &list->next;
3372 /* The MIPS assembler sometimes inserts nop instructions in the
3373 instruction stream. When this happens, we must patch up the .loc
3374 information so that it points to the instruction after the nop. */
3377 ecoff_fix_loc (old_frag, old_frag_offset)
3379 unsigned long old_frag_offset;
3381 if (last_lineno != NULL
3382 && last_lineno->frag == old_frag
3383 && last_lineno->paddr == old_frag_offset)
3385 last_lineno->frag = frag_now;
3386 last_lineno->paddr = frag_now_fix ();
3390 /* Make sure the @stabs symbol is emitted. */
3398 /* Add a dummy @stabs dymbol. */
3400 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3402 (bfd_vma) 0, (symint_t) -1,
3403 ECOFF_MARK_STAB (0));
3407 /* Parse .weakext directives. */
3410 ecoff_directive_weakext (ignore)
3418 name = input_line_pointer;
3419 c = get_symbol_end ();
3420 symbolP = symbol_find_or_make (name);
3421 *input_line_pointer = c;
3425 if (*input_line_pointer == ',')
3427 if (S_IS_DEFINED (symbolP))
3429 as_bad ("Ignoring attempt to redefine symbol `%s'.",
3430 S_GET_NAME (symbolP));
3431 ignore_rest_of_line ();
3435 ++input_line_pointer;
3437 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3440 if (exp.X_op != O_symbol)
3442 as_bad ("bad .weakext directive");
3443 ignore_rest_of_line();
3446 symbolP->sy_value = exp;
3450 S_SET_WEAK (symbolP);
3452 demand_empty_rest_of_line ();
3455 /* Handle .stabs directives. The actual parsing routine is done by a
3456 generic routine. This routine is called via OBJ_PROCESS_STAB.
3457 When this is called, input_line_pointer will be pointing at the
3458 value field of the stab.
3460 .stabs directives have five fields:
3461 "string" a string, encoding the type information.
3462 code a numeric code, defined in <stab.h>
3464 desc a zero or line number
3465 value a numeric value or an address.
3467 If the value is relocatable, we transform this into:
3468 iss points as an index into string space
3469 value value from lookup of the name
3470 st st from lookup of the name
3471 sc sc from lookup of the name
3472 index code|CODE_MASK
3474 If the value is not relocatable, we transform this into:
3475 iss points as an index into string space
3479 index code|CODE_MASK
3481 .stabn directives have four fields (string is null):
3482 code a numeric code, defined in <stab.h>
3484 desc a zero or a line number
3485 value a numeric value or an address. */
3488 ecoff_stab (sec, what, string, type, other, desc)
3496 efdr_t *save_file_ptr = cur_file_ptr;
3503 localsym_t *hold = NULL;
3505 ecoff_debugging_seen = 1;
3507 /* We don't handle .stabd. */
3508 if (what != 's' && what != 'n')
3510 as_bad (".stab%c is not supported", what);
3514 /* A .stabn uses a null name, not an empty string. */
3518 /* We ignore the other field. */
3520 as_warn (".stab%c: ignoring non-zero other field", what);
3522 /* Make sure we have a current file. */
3523 if (cur_file_ptr == (efdr_t *) NULL)
3525 add_file ((const char *) NULL, 0, 1);
3526 save_file_ptr = cur_file_ptr;
3529 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3531 if (stabs_seen == 0)
3534 /* Line number stabs are handled differently, since they have two
3535 values, the line number and the address of the label. We use the
3536 index field (aka desc) to hold the line number, and the value
3537 field to hold the address. The symbol type is st_Label, which
3538 should be different from the other stabs, so that gdb can
3540 if (type == N_SLINE)
3548 listing_source_line ((unsigned int) desc);
3551 dummy_symr.index = desc;
3552 if (dummy_symr.index != desc)
3554 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3559 name = input_line_pointer;
3560 name_end = get_symbol_end ();
3562 sym = symbol_find_or_make (name);
3563 *input_line_pointer = name_end;
3574 if (listing && (type == N_SO || type == N_SOL))
3575 listing_source_file (string);
3578 if (isdigit (*input_line_pointer)
3579 || *input_line_pointer == '-'
3580 || *input_line_pointer == '+')
3584 sym = (symbolS *) NULL;
3585 value = get_absolute_expression ();
3588 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3590 as_warn ("Illegal .stab%c directive, bad character", what);
3601 if (exp.X_op == O_constant)
3604 value = exp.X_add_number;
3607 else if (exp.X_op == O_symbol)
3609 sym = exp.X_add_symbol;
3611 addend = exp.X_add_number;
3615 as_bad (".stabs expression too complex");
3622 indx = ECOFF_MARK_STAB (type);
3625 /* Don't store the stabs symbol we are creating as the type of the
3626 ECOFF symbol. We want to compute the type of the ECOFF symbol
3628 if (sym != (symbolS *) NULL)
3629 hold = sym->ecoff_symbol;
3631 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3633 if (sym != (symbolS *) NULL)
3634 sym->ecoff_symbol = hold;
3636 /* Restore normal file type. */
3637 cur_file_ptr = save_file_ptr;
3640 /* Frob an ECOFF symbol. Small common symbols go into a special
3641 .scommon section rather than bfd_com_section. */
3644 ecoff_frob_symbol (sym)
3647 if (S_IS_COMMON (sym)
3648 && S_GET_VALUE (sym) > 0
3649 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3651 static asection scom_section;
3652 static asymbol scom_symbol;
3654 /* We must construct a fake section similar to bfd_com_section
3655 but with the name .scommon. */
3656 if (scom_section.name == NULL)
3658 scom_section = bfd_com_section;
3659 scom_section.name = ".scommon";
3660 scom_section.output_section = &scom_section;
3661 scom_section.symbol = &scom_symbol;
3662 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3663 scom_symbol = *bfd_com_section.symbol;
3664 scom_symbol.name = ".scommon";
3665 scom_symbol.section = &scom_section;
3667 S_SET_SEGMENT (sym, &scom_section);
3670 /* Double check weak symbols. */
3671 if (sym->bsym->flags & BSF_WEAK)
3673 if (S_IS_COMMON (sym))
3674 as_bad ("Symbol `%s' can not be both weak and common",
3679 /* Add bytes to the symbolic information buffer. */
3682 ecoff_add_bytes (buf, bufend, bufptr, need)
3692 need -= *bufend - bufptr;
3693 if (need < PAGE_SIZE)
3695 want = (*bufend - *buf) + need;
3696 *buf = xrealloc (*buf, want);
3697 *bufend = *buf + want;
3701 /* Adjust the symbolic information buffer to the alignment required
3702 for the ECOFF target debugging information. */
3704 static unsigned long
3705 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3706 const struct ecoff_debug_swap *backend;
3709 unsigned long offset;
3712 bfd_size_type align;
3714 align = backend->debug_align;
3715 if ((offset & (align - 1)) != 0)
3719 add = align - (offset & (align - 1));
3720 if (*bufend - (*buf + offset) < add)
3721 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3722 memset (*buf + offset, 0, add);
3724 if (bufptrptr != (char **) NULL)
3725 *bufptrptr = *buf + offset;
3731 /* Build the line number information. */
3733 static unsigned long
3734 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3735 const struct ecoff_debug_swap *backend;
3738 unsigned long offset;
3742 register lineno_list_t *l;
3743 lineno_list_t *last;
3749 lineno_list_t first;
3751 if (linecntptr != (long *) NULL)
3754 bufptr = *buf + offset;
3756 file = (efdr_t *) NULL;
3757 proc = (proc_t *) NULL;
3758 last = (lineno_list_t *) NULL;
3763 /* For some reason the address of the first procedure is ignored
3764 when reading line numbers. This doesn't matter if the address of
3765 the first procedure is 0, but when gcc is generating MIPS
3766 embedded PIC code, it will put strings in the .text section
3767 before the first procedure. We cope by inserting a dummy line if
3768 the address of the first procedure is not 0. Hopefully this
3769 won't screw things up too badly. */
3770 if (first_proc_ptr != (proc_t *) NULL
3771 && first_lineno != (lineno_list_t *) NULL
3772 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3773 + bfd_get_section_vma (stdoutput,
3774 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3777 first.file = first_lineno->file;
3778 first.proc = first_lineno->proc;
3779 first.frag = &zero_address_frag;
3783 first.next = first_lineno;
3784 first_lineno = &first;
3787 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3792 /* Get the offset to the memory address of the next line number
3793 (in words). Do this first, so that we can skip ahead to the
3794 next useful line number entry. */
3795 if (l->next == (lineno_list_t *) NULL)
3797 /* We want a count of zero, but it will be decremented
3798 before it is used. */
3801 else if (l->next->frag->fr_address + l->next->paddr
3802 > l->frag->fr_address + l->paddr)
3804 count = ((l->next->frag->fr_address + l->next->paddr
3805 - (l->frag->fr_address + l->paddr))
3810 /* Don't change last, so we still get the right delta. */
3814 if (l->file != file || l->proc != proc)
3816 if (l->proc != proc && proc != (proc_t *) NULL)
3817 proc->pdr.lnHigh = last->lineno;
3818 if (l->file != file && file != (efdr_t *) NULL)
3820 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3821 file->fdr.cline = totcount + count;
3822 if (linecntptr != (long *) NULL)
3823 *linecntptr += totcount + count;
3827 if (l->file != file)
3829 efdr_t *last_file = file;
3832 if (last_file != (efdr_t *) NULL)
3834 = last_file->fdr.ilineBase + last_file->fdr.cline;
3836 file->fdr.ilineBase = 0;
3837 file->fdr.cbLineOffset = c;
3839 if (l->proc != proc)
3842 if (proc != (proc_t *) NULL)
3844 proc->pdr.lnLow = l->lineno;
3845 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3846 proc->pdr.iline = totcount;
3850 last = (lineno_list_t *) NULL;
3855 /* Get the offset to this line number. */
3856 if (last == (lineno_list_t *) NULL)
3859 delta = l->lineno - last->lineno;
3861 /* Put in the offset to this line number. */
3866 /* 1 is added to each count read. */
3868 /* We can only adjust the word count by up to 15 words at a
3880 if (delta >= -7 && delta <= 7)
3882 if (bufptr >= *bufend)
3883 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3884 *bufptr++ = setcount + (delta << 4);
3892 if (*bufend - bufptr < 3)
3893 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3894 *bufptr++ = setcount + (8 << 4);
3895 if (delta < -0x8000)
3900 else if (delta > 0x7fff)
3910 *bufptr++ = set >> 8;
3911 *bufptr++ = set & 0xffff;
3916 /* Finish adjusting the count. */
3919 if (bufptr >= *bufend)
3920 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3921 /* 1 is added to each count read. */
3940 if (proc != (proc_t *) NULL)
3941 proc->pdr.lnHigh = last->lineno;
3942 if (file != (efdr_t *) NULL)
3944 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3945 file->fdr.cline = totcount;
3948 if (linecntptr != (long *) NULL)
3949 *linecntptr += totcount;
3951 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3956 /* Build and swap out the symbols. */
3958 static unsigned long
3959 ecoff_build_symbols (backend, buf, bufend, offset)
3960 const struct ecoff_debug_swap *backend;
3963 unsigned long offset;
3965 const bfd_size_type external_sym_size = backend->external_sym_size;
3966 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3967 = backend->swap_sym_out;
3970 vlinks_t *file_link;
3972 sym_out = *buf + offset;
3976 /* The symbols are stored by file. */
3977 for (file_link = file_desc.first;
3978 file_link != (vlinks_t *) NULL;
3979 file_link = file_link->next)
3986 if (file_link->next == (vlinks_t *) NULL)
3987 fil_cnt = file_desc.objects_last_page;
3989 fil_cnt = file_desc.objects_per_page;
3990 fil_ptr = file_link->datum->file;
3991 fil_end = fil_ptr + fil_cnt;
3992 for (; fil_ptr < fil_end; fil_ptr++)
3996 fil_ptr->fdr.isymBase = isym;
3998 for (sym_link = fil_ptr->symbols.first;
3999 sym_link != (vlinks_t *) NULL;
4000 sym_link = sym_link->next)
4003 localsym_t *sym_ptr;
4004 localsym_t *sym_end;
4006 if (sym_link->next == (vlinks_t *) NULL)
4007 sym_cnt = fil_ptr->symbols.objects_last_page;
4009 sym_cnt = fil_ptr->symbols.objects_per_page;
4010 sym_ptr = sym_link->datum->sym;
4011 sym_end = sym_ptr + sym_cnt;
4012 for (; sym_ptr < sym_end; sym_ptr++)
4018 know (sym_ptr->file_ptr == fil_ptr);
4020 /* If there is no associated gas symbol, then this
4021 is a pure debugging symbol. We have already
4022 added the name (if any) to fil_ptr->strings.
4023 Otherwise we must decide whether this is an
4024 external or a local symbol (actually, it may be
4025 both if the local provides additional debugging
4026 information for the external). */
4028 as_sym = sym_ptr->as_sym;
4029 if (as_sym != (symbolS *) NULL)
4033 /* The value of a block start symbol is the
4034 offset from the start of the procedure. For
4035 other symbols we just use the gas value (but
4036 we must offset it by the vma of the section,
4037 just as BFD does, because BFD will not see
4039 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4040 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4044 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4045 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4046 if (S_GET_SEGMENT (as_sym)
4047 != S_GET_SEGMENT (begin_sym))
4048 as_warn (".begin/.bend in different segments");
4049 sym_ptr->ecoff_sym.asym.value =
4050 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4053 sym_ptr->ecoff_sym.asym.value =
4054 (S_GET_VALUE (as_sym)
4055 + bfd_get_section_vma (stdoutput,
4056 S_GET_SEGMENT (as_sym))
4059 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4061 /* Set st_Proc to st_StaticProc for local
4063 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4064 && S_IS_DEFINED (as_sym)
4065 && ! S_IS_EXTERNAL (as_sym)
4066 && ! S_IS_WEAK (as_sym))
4067 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4069 /* Get the type and storage class based on where
4070 the symbol actually wound up. Traditionally,
4071 N_LBRAC and N_RBRAC are *not* relocated. */
4072 indx = sym_ptr->ecoff_sym.asym.index;
4073 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4074 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4075 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4076 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4077 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4080 const char *segname;
4084 seg = S_GET_SEGMENT (as_sym);
4085 segname = segment_name (seg);
4087 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4088 && (S_IS_EXTERNAL (as_sym)
4089 || S_IS_WEAK (as_sym)
4090 || ! S_IS_DEFINED (as_sym)))
4092 if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
4097 else if (seg == text_section)
4102 if (! S_IS_DEFINED (as_sym))
4104 if (as_sym->ecoff_extern_size == 0
4105 || (as_sym->ecoff_extern_size
4106 > bfd_get_gp_size (stdoutput)))
4111 sym_ptr->ecoff_sym.asym.value =
4112 as_sym->ecoff_extern_size;
4115 S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
4118 else if (S_IS_COMMON (as_sym))
4120 if (S_GET_VALUE (as_sym) > 0
4121 && (S_GET_VALUE (as_sym)
4122 <= bfd_get_gp_size (stdoutput)))
4127 else if (seg == text_section)
4129 else if (seg == data_section)
4131 else if (strcmp (segname, ".rdata") == 0
4132 || strcmp (segname, ".rodata") == 0)
4134 else if (strcmp (segname, ".sdata") == 0)
4136 else if (seg == bss_section)
4138 else if (strcmp (segname, ".sbss") == 0)
4140 else if (seg == &bfd_abs_section)
4144 /* This must be a user named section.
4145 This is not possible in ECOFF, but it
4150 sym_ptr->ecoff_sym.asym.st = (int) st;
4151 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4154 /* This is just an external symbol if it is
4155 outside a procedure and it has a type.
4156 FIXME: g++ will generate symbols which have
4157 different names in the debugging information
4158 than the actual symbol. Should we handle
4160 if ((S_IS_EXTERNAL (as_sym)
4161 || S_IS_WEAK (as_sym)
4162 || ! S_IS_DEFINED (as_sym))
4163 && sym_ptr->proc_ptr == (proc_t *) NULL
4164 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4165 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4168 /* If an st_end symbol has an associated gas
4169 symbol, then it is a local label created for
4170 a .bend or .end directive. Stabs line
4171 numbers will have \001 in the names. */
4173 && sym_ptr->ecoff_sym.asym.st != st_End
4174 && strchr (sym_ptr->name, '\001') == 0)
4175 sym_ptr->ecoff_sym.asym.iss =
4176 add_string (&fil_ptr->strings,
4182 /* We now know the index of this symbol; fill in
4183 locations that have been waiting for that
4185 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4187 localsym_t *begin_ptr;
4191 begin_ptr = sym_ptr->begin_ptr;
4192 know (begin_ptr->sym_index != -1);
4193 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4194 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4195 sym_ptr->ecoff_sym.asym.iss =
4196 begin_ptr->ecoff_sym.asym.iss;
4198 begin_type = begin_ptr->ecoff_sym.asym.st;
4199 if (begin_type == st_File
4200 || begin_type == st_Block)
4202 begin_ptr->ecoff_sym.asym.index =
4203 isym - ifilesym + 1;
4204 (*swap_sym_out) (stdoutput,
4205 &begin_ptr->ecoff_sym.asym,
4208 + (begin_ptr->sym_index
4209 * external_sym_size)));
4213 know (begin_ptr->index_ptr != (aux_t *) NULL);
4214 begin_ptr->index_ptr->data.isym =
4215 isym - ifilesym + 1;
4218 /* The value of the symbol marking the end of a
4219 procedure is the size of the procedure. The
4220 value of the symbol marking the end of a
4221 block is the offset from the start of the
4222 procedure to the block. */
4223 if (begin_type == st_Proc
4224 || begin_type == st_StaticProc)
4226 know (as_sym != (symbolS *) NULL);
4227 know (begin_ptr->as_sym != (symbolS *) NULL);
4228 if (S_GET_SEGMENT (as_sym)
4229 != S_GET_SEGMENT (begin_ptr->as_sym))
4230 as_warn (".begin/.bend in different segments");
4231 sym_ptr->ecoff_sym.asym.value =
4232 (S_GET_VALUE (as_sym)
4233 - S_GET_VALUE (begin_ptr->as_sym));
4235 S_SET_SIZE (begin_ptr->as_sym,
4236 sym_ptr->ecoff_sym.asym.value);
4239 else if (begin_type == st_Block
4240 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4244 know (as_sym != (symbolS *) NULL);
4245 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4246 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4247 if (S_GET_SEGMENT (as_sym)
4248 != S_GET_SEGMENT (begin_sym))
4249 as_warn (".begin/.bend in different segments");
4250 sym_ptr->ecoff_sym.asym.value =
4251 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4255 for (f = sym_ptr->forward_ref;
4256 f != (forward_t *) NULL;
4260 f->ifd_ptr->data.isym = fil_ptr->file_index;
4261 f->index_ptr->data.rndx.index = isym - ifilesym;
4266 if (*bufend - sym_out < external_sym_size)
4267 sym_out = ecoff_add_bytes (buf, bufend,
4270 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4272 sym_out += external_sym_size;
4274 sym_ptr->sym_index = isym;
4276 if (sym_ptr->proc_ptr != (proc_t *) NULL
4277 && sym_ptr->proc_ptr->sym == sym_ptr)
4278 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4283 /* Record the local symbol index and file number in
4284 case this is an external symbol. Note that this
4285 destroys the asym.index field. */
4286 if (as_sym != (symbolS *) NULL
4287 && as_sym->ecoff_symbol == sym_ptr)
4289 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4290 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4292 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4293 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4297 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4301 return offset + isym * external_sym_size;
4304 /* Swap out the procedure information. */
4306 static unsigned long
4307 ecoff_build_procs (backend, buf, bufend, offset)
4308 const struct ecoff_debug_swap *backend;
4311 unsigned long offset;
4313 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4314 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4315 = backend->swap_pdr_out;
4318 vlinks_t *file_link;
4320 pdr_out = *buf + offset;
4324 /* The procedures are stored by file. */
4325 for (file_link = file_desc.first;
4326 file_link != (vlinks_t *) NULL;
4327 file_link = file_link->next)
4333 if (file_link->next == (vlinks_t *) NULL)
4334 fil_cnt = file_desc.objects_last_page;
4336 fil_cnt = file_desc.objects_per_page;
4337 fil_ptr = file_link->datum->file;
4338 fil_end = fil_ptr + fil_cnt;
4339 for (; fil_ptr < fil_end; fil_ptr++)
4341 vlinks_t *proc_link;
4344 fil_ptr->fdr.ipdFirst = iproc;
4346 for (proc_link = fil_ptr->procs.first;
4347 proc_link != (vlinks_t *) NULL;
4348 proc_link = proc_link->next)
4354 if (proc_link->next == (vlinks_t *) NULL)
4355 prc_cnt = fil_ptr->procs.objects_last_page;
4357 prc_cnt = fil_ptr->procs.objects_per_page;
4358 proc_ptr = proc_link->datum->proc;
4359 proc_end = proc_ptr + prc_cnt;
4360 for (; proc_ptr < proc_end; proc_ptr++)
4365 adr_sym = proc_ptr->sym->as_sym;
4366 adr = (S_GET_VALUE (adr_sym)
4367 + bfd_get_section_vma (stdoutput,
4368 S_GET_SEGMENT (adr_sym)));
4371 /* This code used to force the adr of the very
4372 first fdr to be 0. However, the native tools
4373 don't do that, and I can't remember why it
4374 used to work that way, so I took it out. */
4375 fil_ptr->fdr.adr = adr;
4378 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4379 if (*bufend - pdr_out < external_pdr_size)
4380 pdr_out = ecoff_add_bytes (buf, bufend,
4383 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4384 pdr_out += external_pdr_size;
4388 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4392 return offset + iproc * external_pdr_size;
4395 /* Swap out the aux information. */
4397 static unsigned long
4398 ecoff_build_aux (backend, buf, bufend, offset)
4399 const struct ecoff_debug_swap *backend;
4402 unsigned long offset;
4405 union aux_ext *aux_out;
4407 vlinks_t *file_link;
4409 bigendian = bfd_big_endian (stdoutput);
4411 aux_out = (union aux_ext *) (*buf + offset);
4415 /* The aux entries are stored by file. */
4416 for (file_link = file_desc.first;
4417 file_link != (vlinks_t *) NULL;
4418 file_link = file_link->next)
4424 if (file_link->next == (vlinks_t *) NULL)
4425 fil_cnt = file_desc.objects_last_page;
4427 fil_cnt = file_desc.objects_per_page;
4428 fil_ptr = file_link->datum->file;
4429 fil_end = fil_ptr + fil_cnt;
4430 for (; fil_ptr < fil_end; fil_ptr++)
4434 fil_ptr->fdr.fBigendian = bigendian;
4435 fil_ptr->fdr.iauxBase = iaux;
4436 for (aux_link = fil_ptr->aux_syms.first;
4437 aux_link != (vlinks_t *) NULL;
4438 aux_link = aux_link->next)
4444 if (aux_link->next == (vlinks_t *) NULL)
4445 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4447 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4448 aux_ptr = aux_link->datum->aux;
4449 aux_end = aux_ptr + aux_cnt;
4450 for (; aux_ptr < aux_end; aux_ptr++)
4452 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4453 aux_out = ((union aux_ext *)
4454 ecoff_add_bytes (buf, bufend,
4456 sizeof (union aux_ext)));
4457 switch (aux_ptr->type)
4460 (*backend->swap_tir_out) (bigendian,
4465 (*backend->swap_rndx_out) (bigendian,
4466 &aux_ptr->data.rndx,
4470 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4474 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4478 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4482 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4486 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4490 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4499 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4503 return ecoff_padding_adjust (backend, buf, bufend,
4504 offset + iaux * sizeof (union aux_ext),
4508 /* Copy out the strings from a varray_t. This returns the number of
4509 bytes copied, rather than the new offset. */
4511 static unsigned long
4512 ecoff_build_strings (buf, bufend, offset, vp)
4515 unsigned long offset;
4522 str_out = *buf + offset;
4526 for (str_link = vp->first;
4527 str_link != (vlinks_t *) NULL;
4528 str_link = str_link->next)
4530 unsigned long str_cnt;
4532 if (str_link->next == (vlinks_t *) NULL)
4533 str_cnt = vp->objects_last_page;
4535 str_cnt = vp->objects_per_page;
4537 if (*bufend - str_out < str_cnt)
4538 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4540 memcpy (str_out, str_link->datum->byte, str_cnt);
4548 /* Dump out the local strings. */
4550 static unsigned long
4551 ecoff_build_ss (backend, buf, bufend, offset)
4552 const struct ecoff_debug_swap *backend;
4555 unsigned long offset;
4558 vlinks_t *file_link;
4562 for (file_link = file_desc.first;
4563 file_link != (vlinks_t *) NULL;
4564 file_link = file_link->next)
4570 if (file_link->next == (vlinks_t *) NULL)
4571 fil_cnt = file_desc.objects_last_page;
4573 fil_cnt = file_desc.objects_per_page;
4574 fil_ptr = file_link->datum->file;
4575 fil_end = fil_ptr + fil_cnt;
4576 for (; fil_ptr < fil_end; fil_ptr++)
4580 fil_ptr->fdr.issBase = iss;
4581 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4583 fil_ptr->fdr.cbSs = ss_cnt;
4588 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4592 /* Swap out the file descriptors. */
4594 static unsigned long
4595 ecoff_build_fdr (backend, buf, bufend, offset)
4596 const struct ecoff_debug_swap *backend;
4599 unsigned long offset;
4601 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4602 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4603 = backend->swap_fdr_out;
4606 vlinks_t *file_link;
4610 fdr_out = *buf + offset;
4612 for (file_link = file_desc.first;
4613 file_link != (vlinks_t *) NULL;
4614 file_link = file_link->next)
4620 if (file_link->next == (vlinks_t *) NULL)
4621 fil_cnt = file_desc.objects_last_page;
4623 fil_cnt = file_desc.objects_per_page;
4624 fil_ptr = file_link->datum->file;
4625 fil_end = fil_ptr + fil_cnt;
4626 for (; fil_ptr < fil_end; fil_ptr++)
4628 if (*bufend - fdr_out < external_fdr_size)
4629 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4631 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4632 fdr_out += external_fdr_size;
4637 return offset + ifile * external_fdr_size;
4640 /* Set up the external symbols. These are supposed to be handled by
4641 the backend. This routine just gets the right information and
4642 calls a backend function to deal with it. */
4647 register symbolS *sym;
4649 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4651 if (sym->ecoff_symbol == NULL)
4654 /* If this is a local symbol, then force the fields to zero. */
4655 if (! S_IS_EXTERNAL (sym)
4656 && ! S_IS_WEAK (sym)
4657 && S_IS_DEFINED (sym))
4659 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4660 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4661 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4662 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4665 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4669 /* Build the ECOFF debugging information. */
4672 ecoff_build_debug (hdr, bufp, backend)
4675 const struct ecoff_debug_swap *backend;
4677 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4682 efdr_t *hold_file_ptr;
4683 proc_t * hold_proc_ptr;
4687 unsigned long offset;
4689 /* Make sure we have a file. */
4690 if (first_file == (efdr_t *) NULL)
4691 add_file ((const char *) NULL, 0, 1);
4693 /* Handle any top level tags. */
4694 for (ptag = top_tag_head->first_tag;
4695 ptag != (tag_t *) NULL;
4698 if (ptag->forward_ref != (forward_t *) NULL)
4699 add_unknown_tag (ptag);
4701 ptag_next = ptag->same_block;
4702 ptag->hash_ptr->tag_ptr = ptag->same_name;
4706 free_thead (top_tag_head);
4708 /* Look through the symbols. Add debugging information for each
4709 symbol that has not already received it. */
4710 hold_file_ptr = cur_file_ptr;
4711 hold_proc_ptr = cur_proc_ptr;
4712 cur_proc_ptr = (proc_t *) NULL;
4713 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4715 if (sym->ecoff_symbol != NULL
4716 || sym->ecoff_file == (efdr_t *) NULL
4717 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4720 cur_file_ptr = sym->ecoff_file;
4721 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4722 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4724 cur_proc_ptr = hold_proc_ptr;
4725 cur_file_ptr = hold_file_ptr;
4727 /* Output an ending symbol for all the files. We have to do this
4728 here for the last file, so we may as well do it for all of the
4731 for (fil_ptr = first_file;
4732 fil_ptr != (efdr_t *) NULL;
4733 fil_ptr = fil_ptr->next_file)
4735 cur_file_ptr = fil_ptr;
4736 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4737 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4739 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4740 if (! end_warning && ! cur_file_ptr->fake)
4742 as_warn ("Missing .end or .bend at end of file");
4746 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4747 (void) add_ecoff_symbol ((const char *) NULL,
4755 /* Build the symbolic information. */
4757 buf = xmalloc (PAGE_SIZE);
4758 bufend = buf + PAGE_SIZE;
4760 /* Build the line number information. */
4761 hdr->cbLineOffset = offset;
4762 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4764 hdr->cbLine = offset - hdr->cbLineOffset;
4766 /* We don't use dense numbers at all. */
4768 hdr->cbDnOffset = 0;
4770 /* We can't build the PDR table until we have built the symbols,
4771 because a PDR contains a symbol index. However, we set aside
4772 space at this point. */
4773 hdr->ipdMax = proc_cnt;
4774 hdr->cbPdOffset = offset;
4775 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4776 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4777 proc_cnt * external_pdr_size);
4778 offset += proc_cnt * external_pdr_size;
4780 /* Build the local symbols. */
4781 hdr->cbSymOffset = offset;
4782 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4783 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4785 /* Building the symbols initializes the symbol index in the PDR's.
4786 Now we can swap out the PDR's. */
4787 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4789 /* We don't use optimization symbols. */
4791 hdr->cbOptOffset = 0;
4793 /* Swap out the auxiliary type information. */
4794 hdr->cbAuxOffset = offset;
4795 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4796 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4798 /* Copy out the local strings. */
4799 hdr->cbSsOffset = offset;
4800 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4801 hdr->issMax = offset - hdr->cbSsOffset;
4803 /* We don't use relative file descriptors. */
4805 hdr->cbRfdOffset = 0;
4807 /* Swap out the file descriptors. */
4808 hdr->cbFdOffset = offset;
4809 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4810 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4812 /* Set up the external symbols, which are handled by the BFD back
4815 hdr->cbSsExtOffset = 0;
4817 hdr->cbExtOffset = 0;
4820 know ((offset & (backend->debug_align - 1)) == 0);
4822 /* FIXME: This value should be determined from the .verstamp directive,
4823 with reasonable defaults in config files. */
4825 hdr->vstamp = 0x030b;
4827 hdr->vstamp = 0x020b;
4834 /* Allocate a cluster of pages. */
4836 #ifndef MALLOC_CHECK
4839 allocate_cluster (npages)
4840 unsigned long npages;
4842 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4846 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4849 memset (value, 0, npages * PAGE_USIZE);
4855 static page_t *cluster_ptr = NULL;
4856 static unsigned long pages_left = 0;
4858 #endif /* MALLOC_CHECK */
4860 /* Allocate one page (which is initialized to 0). */
4865 #ifndef MALLOC_CHECK
4867 if (pages_left == 0)
4869 pages_left = MAX_CLUSTER_PAGES;
4870 cluster_ptr = allocate_cluster (pages_left);
4874 return cluster_ptr++;
4876 #else /* MALLOC_CHECK */
4880 ptr = xmalloc (PAGE_USIZE);
4881 memset (ptr, 0, PAGE_USIZE);
4884 #endif /* MALLOC_CHECK */
4887 /* Allocate scoping information. */
4892 register scope_t *ptr;
4893 static scope_t initial_scope;
4895 #ifndef MALLOC_CHECK
4897 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4898 if (ptr != (scope_t *) NULL)
4899 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4902 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4903 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4905 if (unallocated == 0)
4907 unallocated = PAGE_SIZE / sizeof (scope_t);
4908 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4909 alloc_counts[(int)alloc_type_scope].total_pages++;
4912 ptr = &cur_page->scope[--unallocated];
4913 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4918 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4922 alloc_counts[(int)alloc_type_scope].total_alloc++;
4923 *ptr = initial_scope;
4927 /* Free scoping information. */
4933 alloc_counts[(int)alloc_type_scope].total_free++;
4935 #ifndef MALLOC_CHECK
4936 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4937 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4943 /* Allocate links for pages in a virtual array. */
4948 register vlinks_t *ptr;
4949 static vlinks_t initial_vlinks;
4951 #ifndef MALLOC_CHECK
4953 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4954 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4956 if (unallocated == 0)
4958 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4959 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4960 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4963 ptr = &cur_page->vlinks[--unallocated];
4964 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4968 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4972 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4973 *ptr = initial_vlinks;
4977 /* Allocate string hash buckets. */
4982 register shash_t *ptr;
4983 static shash_t initial_shash;
4985 #ifndef MALLOC_CHECK
4987 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4988 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4990 if (unallocated == 0)
4992 unallocated = PAGE_SIZE / sizeof (shash_t);
4993 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4994 alloc_counts[(int)alloc_type_shash].total_pages++;
4997 ptr = &cur_page->shash[--unallocated];
4998 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
5002 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5006 alloc_counts[(int)alloc_type_shash].total_alloc++;
5007 *ptr = initial_shash;
5011 /* Allocate type hash buckets. */
5016 register thash_t *ptr;
5017 static thash_t initial_thash;
5019 #ifndef MALLOC_CHECK
5021 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
5022 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
5024 if (unallocated == 0)
5026 unallocated = PAGE_SIZE / sizeof (thash_t);
5027 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
5028 alloc_counts[(int)alloc_type_thash].total_pages++;
5031 ptr = &cur_page->thash[--unallocated];
5032 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
5036 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5040 alloc_counts[(int)alloc_type_thash].total_alloc++;
5041 *ptr = initial_thash;
5045 /* Allocate structure, union, or enum tag information. */
5050 register tag_t *ptr;
5051 static tag_t initial_tag;
5053 #ifndef MALLOC_CHECK
5055 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5056 if (ptr != (tag_t *) NULL)
5057 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
5060 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
5061 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
5063 if (unallocated == 0)
5065 unallocated = PAGE_SIZE / sizeof (tag_t);
5066 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
5067 alloc_counts[(int)alloc_type_tag].total_pages++;
5070 ptr = &cur_page->tag[--unallocated];
5071 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
5076 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5080 alloc_counts[(int)alloc_type_tag].total_alloc++;
5085 /* Free scoping information. */
5091 alloc_counts[(int)alloc_type_tag].total_free++;
5093 #ifndef MALLOC_CHECK
5094 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5095 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
5101 /* Allocate forward reference to a yet unknown tag. */
5106 register forward_t *ptr;
5107 static forward_t initial_forward;
5109 #ifndef MALLOC_CHECK
5111 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
5112 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
5114 if (unallocated == 0)
5116 unallocated = PAGE_SIZE / sizeof (forward_t);
5117 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
5118 alloc_counts[(int)alloc_type_forward].total_pages++;
5121 ptr = &cur_page->forward[--unallocated];
5122 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
5126 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5130 alloc_counts[(int)alloc_type_forward].total_alloc++;
5131 *ptr = initial_forward;
5135 /* Allocate head of type hash list. */
5140 register thead_t *ptr;
5141 static thead_t initial_thead;
5143 #ifndef MALLOC_CHECK
5145 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5146 if (ptr != (thead_t *) NULL)
5147 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5150 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
5151 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
5153 if (unallocated == 0)
5155 unallocated = PAGE_SIZE / sizeof (thead_t);
5156 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
5157 alloc_counts[(int)alloc_type_thead].total_pages++;
5160 ptr = &cur_page->thead[--unallocated];
5161 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
5166 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5170 alloc_counts[(int)alloc_type_thead].total_alloc++;
5171 *ptr = initial_thead;
5175 /* Free scoping information. */
5181 alloc_counts[(int)alloc_type_thead].total_free++;
5183 #ifndef MALLOC_CHECK
5184 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5185 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5191 static lineno_list_t *
5192 allocate_lineno_list ()
5194 register lineno_list_t *ptr;
5195 static lineno_list_t initial_lineno_list;
5197 #ifndef MALLOC_CHECK
5199 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
5200 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
5202 if (unallocated == 0)
5204 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5205 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5206 alloc_counts[(int)alloc_type_lineno].total_pages++;
5209 ptr = &cur_page->lineno[--unallocated];
5210 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5214 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5218 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5219 *ptr = initial_lineno_list;
5224 ecoff_set_gp_prolog_size (sz)
5227 if (cur_proc_ptr == 0)
5230 cur_proc_ptr->pdr.gp_prologue = sz;
5231 if (cur_proc_ptr->pdr.gp_prologue != sz)
5233 as_warn ("GP prologue size exceeds field size, using 0 instead");
5234 cur_proc_ptr->pdr.gp_prologue = 0;
5237 cur_proc_ptr->pdr.gp_used = 1;
5241 generate_ecoff_stab (what, string, type, other, desc)
5248 efdr_t *save_file_ptr = cur_file_ptr;
5254 localsym_t *hold = NULL;
5256 /* We don't handle .stabd. */
5257 if (what != 's' && what != 'n')
5259 as_bad (".stab%c is not supported", what);
5263 /* We ignore the other field. */
5265 as_warn (".stab%c: ignoring non-zero other field", what);
5267 /* Make sure we have a current file. */
5268 if (cur_file_ptr == (efdr_t *) NULL)
5270 add_file ((const char *) NULL, 0, 1);
5271 save_file_ptr = cur_file_ptr;
5274 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5276 if (stabs_seen == 0)
5279 /* Line number stabs are handled differently, since they have two
5280 values, the line number and the address of the label. We use the
5281 index field (aka desc) to hold the line number, and the value
5282 field to hold the address. The symbol type is st_Label, which
5283 should be different from the other stabs, so that gdb can
5285 if (type == N_SLINE)
5291 listing_source_line ((unsigned int) desc);
5294 dummy_symr.index = desc;
5295 if (dummy_symr.index != desc)
5297 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5302 sym = symbol_find_or_make ((char *)string);
5311 if (listing && (type == N_SO || type == N_SOL))
5312 listing_source_file (string);
5315 sym = symbol_find_or_make ((char *)string);
5319 indx = ECOFF_MARK_STAB (type);
5322 /* Don't store the stabs symbol we are creating as the type of the
5323 ECOFF symbol. We want to compute the type of the ECOFF symbol
5325 if (sym != (symbolS *) NULL)
5326 hold = sym->ecoff_symbol;
5328 (void) add_ecoff_symbol (string, st, sc, sym, (bfd_vma) 0, value, indx);
5330 if (sym != (symbolS *) NULL)
5331 sym->ecoff_symbol = hold;
5333 /* Restore normal file type. */
5334 cur_file_ptr = save_file_ptr;
5338 ecoff_no_current_file ()
5340 return cur_file_ptr == (efdr_t *) NULL;
5344 ecoff_generate_asm_lineno (filename, lineno)
5345 const char *filename;
5348 lineno_list_t *list;
5350 /* this potential can cause problem, when we start to see stab half the
5351 way thru the file */
5354 ecoff_generate_asm_line_stab(filename, lineno);
5357 if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename))
5359 add_file (filename, 0, 1);
5360 generate_asm_lineno = 1;
5363 list = allocate_lineno_list ();
5365 list->next = (lineno_list_t *) NULL;
5366 list->file = cur_file_ptr;
5367 list->proc = cur_proc_ptr;
5368 list->frag = frag_now;
5369 list->paddr = frag_now_fix ();
5370 list->lineno = lineno;
5372 /* We don't want to merge files which have line numbers. */
5373 cur_file_ptr->fdr.fMerge = 0;
5375 /* A .loc directive will sometimes appear before a .ent directive,
5376 which means that cur_proc_ptr will be NULL here. Arrange to
5378 if (cur_proc_ptr == (proc_t *) NULL)
5382 pl = &noproc_lineno;
5383 while (*pl != (lineno_list_t *) NULL)
5390 *last_lineno_ptr = list;
5391 last_lineno_ptr = &list->next;
5395 static int line_label_cnt = 0;
5397 ecoff_generate_asm_line_stab (filename, lineno)
5403 if (strcmp (current_stabs_filename, filename))
5405 add_file (filename, 0, 1);
5406 generate_asm_lineno = 1;
5410 /* generate local label $LMnn */
5412 sprintf(ll, "$LM%d", line_label_cnt);
5415 /* generate stab for the line */
5416 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5420 #endif /* ECOFF_DEBUGGING */