1 /* ECOFF debugging support.
2 Copyright (C) 1993 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
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
26 /* This file is compiled conditionally for those targets which use
27 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
30 #ifdef ECOFF_DEBUGGING
32 #include "coff/internal.h"
33 #include "coff/symconst.h"
35 #include "aout/stab_gnu.h"
39 /* Why isn't this in coff/sym.h? */
40 #define ST_RFDESCAPE 0xfff
42 /* This file constructs the information used by the ECOFF debugging
43 format. It just builds a large block of data.
45 We support both ECOFF style debugging and stabs debugging (the
46 stabs symbols are encapsulated in ECOFF symbols). This should let
47 us handle anything the compiler might throw at us. */
49 /* Here is a brief description of the MIPS ECOFF symbol table, by
50 Michael Meissner. The MIPS symbol table has the following pieces:
56 +-- Dense number table
64 +-- Relative file descriptors
76 The symbolic header points to each of the other tables, and also
77 contains the number of entries. It also contains a magic number
78 and MIPS compiler version number, such as 2.0.
80 The auxiliary table is a series of 32 bit integers, that are
81 referenced as needed from the local symbol table. Unlike standard
82 COFF, the aux. information does not follow the symbol that uses
83 it, but rather is a separate table. In theory, this would allow
84 the MIPS compilers to collapse duplicate aux. entries, but I've not
85 noticed this happening with the 1.31 compiler suite. The different
86 types of aux. entries are:
88 1) dnLow: Low bound on array dimension.
90 2) dnHigh: High bound on array dimension.
92 3) isym: Index to the local symbol which is the start of the
93 function for the end of function first aux. entry.
95 4) width: Width of structures and bitfields.
97 5) count: Count of ranges for variant part.
99 6) rndx: A relative index into the symbol table. The relative
100 index field has two parts: rfd which is a pointer into the
101 relative file index table or ST_RFDESCAPE which says the next
102 aux. entry is the file number, and index: which is the pointer
103 into the local symbol within a given file table. This is for
104 things like references to types defined in another file.
106 7) Type information: This is like the COFF type bits, except it
107 is 32 bits instead of 16; they still have room to add new
108 basic types; and they can handle more than 6 levels of array,
109 pointer, function, etc. Each type information field contains
110 the following structure members:
112 a) fBitfield: a bit that says this is a bitfield, and the
113 size in bits follows as the next aux. entry.
115 b) continued: a bit that says the next aux. entry is a
116 continuation of the current type information (in case
117 there are more than 6 levels of array/ptr/function).
119 c) bt: an integer containing the base type before adding
120 array, pointer, function, etc. qualifiers. The
121 current base types that I have documentation for are:
124 btAdr -- address - integer same size as ptr
126 btUChar -- unsigned character
128 btUShort -- unsigned short
130 btUInt -- unsigned int
132 btULong -- unsigned long
133 btFloat -- float (real)
134 btDouble -- Double (real)
135 btStruct -- Structure (Record)
136 btUnion -- Union (variant)
138 btTypedef -- defined via a typedef isymRef
139 btRange -- subrange of int
141 btComplex -- fortran complex
142 btDComplex -- fortran double complex
143 btIndirect -- forward or unnamed typedef
144 btFixedDec -- Fixed Decimal
145 btFloatDec -- Float Decimal
146 btString -- Varying Length Character String
147 btBit -- Aligned Bit String
149 btVoid -- Void (MIPS cc revision >= 2.00)
151 d) tq0 - tq5: type qualifier fields as needed. The
152 current type qualifier fields I have documentation for
155 tqNil -- no more qualifiers
159 tqFar -- 8086 far pointers
163 The dense number table is used in the front ends, and disappears by
164 the time the .o is created.
166 With the 1.31 compiler suite, the optimization symbols don't seem
167 to be used as far as I can tell.
169 The linker is the first entity that creates the relative file
170 descriptor table, and I believe it is used so that the individual
171 file table pointers don't have to be rewritten when the objects are
172 merged together into the program file.
174 Unlike COFF, the basic symbol & string tables are split into
175 external and local symbols/strings. The relocation information
176 only goes off of the external symbol table, and the debug
177 information only goes off of the internal symbol table. The
178 external symbols can have links to an appropriate file index and
179 symbol within the file to give it the appropriate type information.
180 Because of this, the external symbols are actually larger than the
181 internal symbols (to contain the link information), and contain the
182 local symbol structure as a member, though this member is not the
183 first member of the external symbol structure (!). I suspect this
184 split is to make strip easier to deal with.
186 Each file table has offsets for where the line numbers, local
187 strings, local symbols, and procedure table starts from within the
188 global tables, and the indexs are reset to 0 for each of those
191 The procedure table contains the binary equivalents of the .ent
192 (start of the function address), .frame (what register is the
193 virtual frame pointer, constant offset from the register to obtain
194 the VFP, and what register holds the return address), .mask/.fmask
195 (bitmask of saved registers, and where the first register is stored
196 relative to the VFP) assembler directives. It also contains the
197 low and high bounds of the line numbers if debugging is turned on.
199 The line number table is a compressed form of the normal COFF line
200 table. Each line number entry is either 1 or 3 bytes long, and
201 contains a signed delta from the previous line, and an unsigned
202 count of the number of instructions this statement takes.
204 The local symbol table contains the following fields:
206 1) iss: index to the local string table giving the name of the
209 2) value: value of the symbol (address, register number, etc.).
211 3) st: symbol type. The current symbol types are:
213 stNil -- Nuthin' special
214 stGlobal -- external symbol
216 stParam -- procedure argument
217 stLocal -- local variable
219 stProc -- External Procedure
220 stBlock -- beginning of block
221 stEnd -- end (of anything)
222 stMember -- member (of anything)
223 stTypedef -- type definition
225 stRegReloc -- register relocation
226 stForward -- forwarding address
227 stStaticProc -- Static procedure
230 4) sc: storage class. The current storage classes are:
232 scText -- text symbol
233 scData -- initialized data symbol
234 scBss -- un-initialized data symbol
235 scRegister -- value of symbol is register number
236 scAbs -- value of symbol is absolute
237 scUndefined -- who knows?
238 scCdbLocal -- variable's value is IN se->va.??
239 scBits -- this is a bit field
240 scCdbSystem -- value is IN debugger's address space
241 scRegImage -- register value saved on stack
242 scInfo -- symbol contains debugger information
243 scUserStruct -- addr in struct user for current process
244 scSData -- load time only small data
245 scSBss -- load time only small common
246 scRData -- load time only read only data
247 scVar -- Var parameter (fortranpascal)
248 scCommon -- common variable
249 scSCommon -- small common
250 scVarRegister -- Var parameter in a register
251 scVariant -- Variant record
252 scSUndefined -- small undefined(external) data
253 scInit -- .init section symbol
255 5) index: pointer to a local symbol or aux. entry.
259 For the following program:
264 printf("Hello World!\n");
268 Mips-tdump produces the following information:
273 timestamp 645311799, Wed Jun 13 17:16:39 1990
274 symbolic header offset 284
275 symbolic header size 96
279 Symbolic header, magic number = 0x7009, vstamp = 1.31:
281 Info Offset Number Bytes
282 ==== ====== ====== =====
284 Line numbers 380 4 4 [13]
286 Procedures Tables 384 1 52
287 Local Symbols 436 16 192
288 Optimization Symbols 0 0 0
289 Auxiliary Symbols 628 39 156
290 Local Strings 784 80 80
291 External Strings 864 144 144
292 File Tables 1008 2 144
294 External Symbols 1152 20 320
298 Name index = 1 Readin = No
299 Merge = No Endian = LITTLE
300 Debug level = G2 Language = C
303 Info Start Number Size Offset
304 ==== ===== ====== ==== ======
305 Local strings 0 15 15 784
306 Local symbols 0 6 72 436
307 Line numbers 0 13 13 380
308 Optimization symbols 0 0 0 0
309 Procedures 0 1 52 384
310 Auxiliary symbols 0 14 56 628
311 Relative Files 0 0 0 0
313 There are 6 local symbols, starting at 436
315 Symbol# 0: "hello2.c"
318 Storage class = Text Index = 6
319 Symbol type = File Value = 0
325 Storage class = Text Index = 12
326 Symbol type = Proc Value = 0
331 Storage class = Text Index = 4
332 Symbol type = Block Value = 8
337 Storage class = Text Index = 2
338 Symbol type = End Value = 28
343 Storage class = Text Index = 1
344 Symbol type = End Value = 52
346 Symbol# 5: "hello2.c"
349 Storage class = Text Index = 0
350 Symbol type = End Value = 0
352 There are 14 auxiliary table entries, starting at 628.
354 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
355 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
356 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
357 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
358 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
359 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
360 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
361 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
362 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
363 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
364 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
365 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
366 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
367 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
369 There are 1 procedure descriptor entries, starting at 0.
371 Procedure descriptor 0:
372 Name index = 10 Name = "main"
373 .mask 0x80000000,-4 .fmask 0x00000000,0
375 Opt. start = -1 Symbols start = 1
376 First line # = 3 Last line # = 6
377 Line Offset = 0 Address = 0x00000000
379 There are 4 bytes holding line numbers, starting at 380.
380 Line 3, delta 0, count 2
381 Line 4, delta 1, count 3
382 Line 5, delta 1, count 2
383 Line 6, delta 1, count 6
385 File #1, "/usr/include/stdio.h"
387 Name index = 1 Readin = No
388 Merge = Yes Endian = LITTLE
389 Debug level = G2 Language = C
392 Info Start Number Size Offset
393 ==== ===== ====== ==== ======
394 Local strings 15 65 65 799
395 Local symbols 6 10 120 508
396 Line numbers 0 0 0 380
397 Optimization symbols 0 0 0 0
399 Auxiliary symbols 14 25 100 684
400 Relative Files 0 0 0 0
402 There are 10 local symbols, starting at 442
404 Symbol# 0: "/usr/include/stdio.h"
407 Storage class = Text Index = 10
408 Symbol type = File Value = 0
413 Storage class = Info Index = 9
414 Symbol type = Block Value = 20
419 Storage class = Info Index = 4
420 Symbol type = Member Value = 0
425 Storage class = Info Index = 15
426 Symbol type = Member Value = 32
431 Storage class = Info Index = 16
432 Symbol type = Member Value = 64
437 Storage class = Info Index = 4
438 Symbol type = Member Value = 96
443 Storage class = Info Index = 3
444 Symbol type = Member Value = 128
449 Storage class = Info Index = 2
450 Symbol type = Member Value = 144
455 Storage class = Info Index = 1
456 Symbol type = End Value = 0
458 Symbol# 9: "/usr/include/stdio.h"
461 Storage class = Text Index = 0
462 Symbol type = End Value = 0
464 There are 25 auxiliary table entries, starting at 642.
466 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
467 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
468 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
470 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
471 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
472 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
473 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
474 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
475 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
476 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
477 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
478 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492 There are 0 procedure descriptor entries, starting at 1.
494 There are 20 external symbols, starting at 1152
497 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
498 String index = 0 Ifd = 1
499 Storage class = Nil Index = 17
500 Symbol type = Global Value = 60
503 String index = 5 Ifd = 1
504 Storage class = Nil Index = 1048575
505 Symbol type = Proc Value = 0
508 String index = 11 Ifd = 1
509 Storage class = Nil Index = 1048575
510 Symbol type = Proc Value = 0
513 String index = 18 Ifd = 1
514 Storage class = Nil Index = 1048575
515 Symbol type = Proc Value = 0
518 String index = 26 Ifd = 1
519 Storage class = Nil Index = 1048575
520 Symbol type = Proc Value = 0
523 String index = 32 Ifd = 1
524 Storage class = Nil Index = 1048575
525 Symbol type = Proc Value = 0
528 String index = 40 Ifd = 1
529 Storage class = Nil Index = 1048575
530 Symbol type = Proc Value = 0
533 String index = 46 Ifd = 1
534 Storage class = Nil Index = 1048575
535 Symbol type = Proc Value = 0
538 String index = 53 Ifd = 1
539 Storage class = Nil Index = 1048575
540 Symbol type = Proc Value = 0
542 Symbol# 9: "setbuffer"
543 String index = 60 Ifd = 1
544 Storage class = Nil Index = 1048575
545 Symbol type = Proc Value = 0
547 Symbol# 10: "setlinebuf"
548 String index = 70 Ifd = 1
549 Storage class = Nil Index = 1048575
550 Symbol type = Proc Value = 0
553 String index = 81 Ifd = 1
554 Storage class = Nil Index = 1048575
555 Symbol type = Proc Value = 0
558 String index = 87 Ifd = 1
559 Storage class = Nil Index = 1048575
560 Symbol type = Proc Value = 0
562 Symbol# 13: "ctermid"
563 String index = 92 Ifd = 1
564 Storage class = Nil Index = 1048575
565 Symbol type = Proc Value = 0
567 Symbol# 14: "cuserid"
568 String index = 100 Ifd = 1
569 Storage class = Nil Index = 1048575
570 Symbol type = Proc Value = 0
572 Symbol# 15: "tempnam"
573 String index = 108 Ifd = 1
574 Storage class = Nil Index = 1048575
575 Symbol type = Proc Value = 0
578 String index = 116 Ifd = 1
579 Storage class = Nil Index = 1048575
580 Symbol type = Proc Value = 0
582 Symbol# 17: "sprintf"
583 String index = 123 Ifd = 1
584 Storage class = Nil Index = 1048575
585 Symbol type = Proc Value = 0
589 String index = 131 Ifd = 0
590 Storage class = Text Index = 1
591 Symbol type = Proc Value = 0
594 String index = 136 Ifd = 0
595 Storage class = Undefined Index = 1048575
596 Symbol type = Proc Value = 0
598 The following auxiliary table entries were unused:
602 #3 16 0x00000010 short
604 #5 32 0x00000020 long
605 #6 40 0x00000028 float
606 #7 44 0x0000002c double
607 #8 12 0x0000000c unsigned char
608 #9 20 0x00000014 unsigned short
609 #10 28 0x0000001c unsigned int
610 #11 36 0x00000024 unsigned long
611 #14 0 0x00000000 void
612 #15 24 0x00000018 int
613 #19 32 0x00000020 long
614 #20 40 0x00000028 float
615 #21 44 0x0000002c double
616 #22 12 0x0000000c unsigned char
617 #23 20 0x00000014 unsigned short
618 #24 28 0x0000001c unsigned int
619 #25 36 0x00000024 unsigned long
620 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
623 /* Redefinition of of storage classes as an enumeration for better
627 sc_Nil = scNil, /* no storage class */
628 sc_Text = scText, /* text symbol */
629 sc_Data = scData, /* initialized data symbol */
630 sc_Bss = scBss, /* un-initialized data symbol */
631 sc_Register = scRegister, /* value of symbol is register number */
632 sc_Abs = scAbs, /* value of symbol is absolute */
633 sc_Undefined = scUndefined, /* who knows? */
634 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
635 sc_Bits = scBits, /* this is a bit field */
636 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
637 sc_RegImage = scRegImage, /* register value saved on stack */
638 sc_Info = scInfo, /* symbol contains debugger information */
639 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
640 sc_SData = scSData, /* load time only small data */
641 sc_SBss = scSBss, /* load time only small common */
642 sc_RData = scRData, /* load time only read only data */
643 sc_Var = scVar, /* Var parameter (fortran,pascal) */
644 sc_Common = scCommon, /* common variable */
645 sc_SCommon = scSCommon, /* small common */
646 sc_VarRegister = scVarRegister, /* Var parameter in a register */
647 sc_Variant = scVariant, /* Variant record */
648 sc_SUndefined = scSUndefined, /* small undefined(external) data */
649 sc_Init = scInit, /* .init section symbol */
650 sc_Max = scMax /* Max storage class+1 */
653 /* Redefinition of symbol type. */
656 st_Nil = stNil, /* Nuthin' special */
657 st_Global = stGlobal, /* external symbol */
658 st_Static = stStatic, /* static */
659 st_Param = stParam, /* procedure argument */
660 st_Local = stLocal, /* local variable */
661 st_Label = stLabel, /* label */
662 st_Proc = stProc, /* " " Procedure */
663 st_Block = stBlock, /* beginning of block */
664 st_End = stEnd, /* end (of anything) */
665 st_Member = stMember, /* member (of anything - struct/union/enum */
666 st_Typedef = stTypedef, /* type definition */
667 st_File = stFile, /* file name */
668 st_RegReloc = stRegReloc, /* register relocation */
669 st_Forward = stForward, /* forwarding address */
670 st_StaticProc = stStaticProc, /* load time only static procs */
671 st_Constant = stConstant, /* const */
672 st_Str = stStr, /* string */
673 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
674 st_Expr = stExpr, /* 2+2 vs. 4 */
675 st_Type = stType, /* post-coercion SER */
676 st_Max = stMax /* max type+1 */
679 /* Redefinition of type qualifiers. */
682 tq_Nil = tqNil, /* bt is what you see */
683 tq_Ptr = tqPtr, /* pointer */
684 tq_Proc = tqProc, /* procedure */
685 tq_Array = tqArray, /* duh */
686 tq_Far = tqFar, /* longer addressing - 8086/8 land */
687 tq_Vol = tqVol, /* volatile */
688 tq_Max = tqMax /* Max type qualifier+1 */
691 /* Redefinition of basic types. */
694 bt_Nil = btNil, /* undefined */
695 bt_Adr = btAdr, /* address - integer same size as pointer */
696 bt_Char = btChar, /* character */
697 bt_UChar = btUChar, /* unsigned character */
698 bt_Short = btShort, /* short */
699 bt_UShort = btUShort, /* unsigned short */
700 bt_Int = btInt, /* int */
701 bt_UInt = btUInt, /* unsigned int */
702 bt_Long = btLong, /* long */
703 bt_ULong = btULong, /* unsigned long */
704 bt_Float = btFloat, /* float (real) */
705 bt_Double = btDouble, /* Double (real) */
706 bt_Struct = btStruct, /* Structure (Record) */
707 bt_Union = btUnion, /* Union (variant) */
708 bt_Enum = btEnum, /* Enumerated */
709 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
710 bt_Range = btRange, /* subrange of int */
711 bt_Set = btSet, /* pascal sets */
712 bt_Complex = btComplex, /* fortran complex */
713 bt_DComplex = btDComplex, /* fortran double complex */
714 bt_Indirect = btIndirect, /* forward or unnamed typedef */
715 bt_FixedDec = btFixedDec, /* Fixed Decimal */
716 bt_FloatDec = btFloatDec, /* Float Decimal */
717 bt_String = btString, /* Varying Length Character String */
718 bt_Bit = btBit, /* Aligned Bit String */
719 bt_Picture = btPicture, /* Picture */
720 bt_Void = btVoid, /* Void */
721 bt_Max = btMax /* Max basic type+1 */
726 /* States for whether to hash type or not. */
727 typedef enum hash_state {
728 hash_no = 0, /* don't hash type */
729 hash_yes = 1, /* ok to hash type, or use previous hash */
730 hash_record = 2 /* ok to record hash, but don't use prev. */
733 /* Types of different sized allocation requests. */
735 alloc_type_none, /* dummy value */
736 alloc_type_scope, /* nested scopes linked list */
737 alloc_type_vlinks, /* glue linking pages in varray */
738 alloc_type_shash, /* string hash element */
739 alloc_type_thash, /* type hash element */
740 alloc_type_tag, /* struct/union/tag element */
741 alloc_type_forward, /* element to hold unknown tag */
742 alloc_type_thead, /* head of type hash list */
743 alloc_type_varray, /* general varray allocation */
744 alloc_type_lineno, /* line number list */
745 alloc_type_last /* last+1 element for array bounds */
748 /* Types of auxiliary type information. */
750 aux_tir, /* TIR type information */
751 aux_rndx, /* relative index into symbol table */
752 aux_dnLow, /* low dimension */
753 aux_dnHigh, /* high dimension */
754 aux_isym, /* symbol table index (end of proc) */
755 aux_iss, /* index into string space (not used) */
756 aux_width, /* width for non-default sized struc fields */
757 aux_count /* count of ranges for variant arm */
760 /* Structures to provide n-number of virtual arrays, each of which can
761 grow linearly, and which are written in the object file as
762 sequential pages. On systems with a BSD malloc, the
763 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
764 malloc adds it's overhead, and rounds up to the next power of 2.
765 Pages are linked together via a linked list.
767 If PAGE_SIZE is > 4096, the string length in the shash_t structure
768 can't be represented (assuming there are strings > 4096 bytes). */
771 #define PAGE_SIZE 4096 /* size of varray pages */
774 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
777 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
778 #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 struct efdr *file_ptr; /* file pointer */
837 struct ecoff_proc *proc_ptr; /* proc pointer */
838 struct localsym *begin_ptr; /* symbol at start of block */
839 struct ecoff_aux *index_ptr; /* index value to be filled in */
840 struct forward *forward_ref; /* forward references to this symbol */
841 long sym_index; /* final symbol index */
842 EXTR ecoff_sym; /* ECOFF debugging symbol */
846 /* For aux information we keep the type and the data. */
847 typedef struct ecoff_aux {
848 enum aux_type type; /* aux type */
849 AUXU data; /* aux data */
852 /* For a procedure we store the gas symbol as well as the PDR
853 debugging information. */
854 typedef struct ecoff_proc {
855 localsym_t *sym; /* associated symbol */
856 PDR pdr; /* ECOFF debugging info */
859 /* Number of proc_t structures allocated. */
860 static unsigned long proc_cnt;
863 /* Forward reference list for tags referenced, but not yet defined. */
864 typedef struct forward {
865 struct forward *next; /* next forward reference */
866 struct forward *free; /* free list pointer */
867 aux_t *ifd_ptr; /* pointer to store file index */
868 aux_t *index_ptr; /* pointer to store symbol index */
872 /* Linked list support for tags. The first tag in the list is always
873 the current tag for that block. */
875 struct tag *free; /* free list pointer */
876 struct shash *hash_ptr; /* pointer to the hash table head */
877 struct tag *same_name; /* tag with same name in outer scope */
878 struct tag *same_block; /* next tag defined in the same block. */
879 struct forward *forward_ref; /* list of forward references */
880 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
881 symint_t ifd; /* file # tag defined in */
882 localsym_t *sym; /* file's local symbols */
886 /* Head of a block's linked list of tags. */
887 typedef struct thead {
888 struct thead *prev; /* previous block */
889 struct thead *free; /* free list pointer */
890 struct tag *first_tag; /* first tag in block defined */
894 /* Union containing pointers to each the small structures which are freed up. */
895 typedef union small_free {
896 scope_t *f_scope; /* scope structure */
897 thead_t *f_thead; /* tag head structure */
898 tag_t *f_tag; /* tag element structure */
899 forward_t *f_forward; /* forward tag reference */
903 /* String hash table entry. */
905 typedef struct shash {
906 char *string; /* string we are hashing */
907 symint_t indx; /* index within string table */
908 EXTR *esym_ptr; /* global symbol pointer */
909 localsym_t *sym_ptr; /* local symbol pointer */
910 localsym_t *end_ptr; /* symbol pointer to end block */
911 tag_t *tag_ptr; /* tag pointer */
912 proc_t *proc_ptr; /* procedure descriptor pointer */
916 /* Type hash table support. The size of the hash table must fit
917 within a page with the other extended file descriptor information.
918 Because unique types which are hashed are fewer in number than
919 strings, we use a smaller hash value. */
924 #define THASH_SIZE 113
927 typedef struct thash {
928 struct thash *next; /* next hash value */
929 AUXU type; /* type we are hashing */
930 symint_t indx; /* index within string table */
934 /* Extended file descriptor that contains all of the support necessary
935 to add things to each file separately. */
936 typedef struct efdr {
937 FDR fdr; /* File header to be written out */
938 FDR *orig_fdr; /* original file header */
939 char *name; /* filename */
940 symint_t void_type; /* aux. pointer to 'void' type */
941 symint_t int_type; /* aux. pointer to 'int' type */
942 scope_t *cur_scope; /* current nested scopes */
943 symint_t file_index; /* current file number */
944 int nested_scopes; /* # nested scopes */
945 varray_t strings; /* local strings */
946 varray_t symbols; /* local symbols */
947 varray_t procs; /* procedures */
948 varray_t aux_syms; /* auxiliary symbols */
949 struct efdr *next_file; /* next file descriptor */
950 /* string/type hash tables */
951 struct hash_control *str_hash; /* string hash table */
952 thash_t *thash_head[THASH_SIZE];
955 /* Pre-initialized extended file structure. */
956 static const efdr_t init_file =
958 { /* FDR structure */
959 0, /* adr: memory address of beginning of file */
960 0, /* rss: file name (of source, if known) */
961 0, /* issBase: file's string space */
962 0, /* cbSs: number of bytes in the ss */
963 0, /* isymBase: beginning of symbols */
964 0, /* csym: count file's of symbols */
965 0, /* ilineBase: file's line symbols */
966 0, /* cline: count of file's line symbols */
967 0, /* ioptBase: file's optimization entries */
968 0, /* copt: count of file's optimization entries */
969 0, /* ipdFirst: start of procedures for this file */
970 0, /* cpd: count of procedures for this file */
971 0, /* iauxBase: file's auxiliary entries */
972 0, /* caux: count of file's auxiliary entries */
973 0, /* rfdBase: index into the file indirect table */
974 0, /* crfd: count file indirect entries */
975 langC, /* lang: language for this file */
976 0, /* fMerge: whether this file can be merged */
977 0, /* fReadin: true if read in (not just created) */
978 #ifdef TARGET_BYTES_BIG_ENDIAN
979 1, /* fBigendian: if 1, compiled on big endian machine */
981 0, /* fBigendian: if 1, compiled on big endian machine */
983 GLEVEL_2, /* glevel: level this file was compiled with */
984 0, /* reserved: reserved for future use */
985 0, /* cbLineOffset: byte offset from header for this file ln's */
986 0, /* cbLine: size of lines for this file */
989 (FDR *)0, /* orig_fdr: original file header pointer */
990 (char *)0, /* name: pointer to filename */
991 0, /* void_type: ptr to aux node for void type */
992 0, /* int_type: ptr to aux node for int type */
993 (scope_t *)0, /* cur_scope: current scope being processed */
994 0, /* file_index: current file # */
995 0, /* nested_scopes: # nested scopes */
996 INIT_VARRAY (char), /* strings: local string varray */
997 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
998 INIT_VARRAY (proc_t), /* procs: procedure varray */
999 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1001 (struct efdr *)0, /* next_file: next file structure */
1003 (struct hash_control *)0, /* str_hash: string hash table */
1004 { 0 }, /* thash_head: type hash table */
1008 static efdr_t *first_file; /* first file descriptor */
1009 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1012 /* Line number information is kept in a list until the assembly is
1014 typedef struct lineno_list {
1015 struct lineno_list *next; /* next element in list */
1016 efdr_t *file; /* file this line is in */
1017 proc_t *proc; /* procedure this line is in */
1018 fragS *frag; /* fragment this line number is in */
1019 unsigned long paddr; /* offset within fragment */
1020 long lineno; /* actual line number */
1023 static lineno_list_t *first_lineno;
1024 static lineno_list_t **last_lineno_ptr = &first_lineno;
1026 /* Sometimes there will be some .loc statements before a .ent. We
1027 keep them in this list so that we can fill in the procedure pointer
1028 after we see the .ent. */
1029 static lineno_list_t *noproc_lineno;
1031 /* Union of various things that are held in pages. */
1032 typedef union page {
1033 char byte [ PAGE_SIZE ];
1034 unsigned char ubyte [ PAGE_SIZE ];
1035 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1036 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1037 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1038 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1039 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1040 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1041 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1042 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1043 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1044 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1045 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1046 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1047 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1048 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1052 /* Structure holding allocation information for small sized structures. */
1053 typedef struct alloc_info {
1054 char *alloc_name; /* name of this allocation type (must be first) */
1055 page_t *cur_page; /* current page being allocated from */
1056 small_free_t free_list; /* current free list if any */
1057 int unallocated; /* number of elements unallocated on page */
1058 int total_alloc; /* total number of allocations */
1059 int total_free; /* total number of frees */
1060 int total_pages; /* total number of pages allocated */
1064 /* Type information collected together. */
1065 typedef struct type_info {
1066 bt_t basic_type; /* basic type */
1067 int orig_type; /* original COFF-based type */
1068 int num_tq; /* # type qualifiers */
1069 int num_dims; /* # dimensions */
1070 int num_sizes; /* # sizes */
1071 int extra_sizes; /* # extra sizes not tied with dims */
1072 tag_t * tag_ptr; /* tag pointer */
1073 int bitfield; /* symbol is a bitfield */
1074 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1075 symint_t dimensions [N_TQ]; /* dimensions for each array */
1076 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1077 struct/union/enum + bitfield size */
1080 /* Pre-initialized type_info struct. */
1081 static const type_info_t type_info_init = {
1082 bt_Nil, /* basic type */
1083 T_NULL, /* original COFF-based type */
1084 0, /* # type qualifiers */
1085 0, /* # dimensions */
1087 0, /* sizes not tied with dims */
1088 NULL, /* ptr to tag */
1090 { /* type qualifiers */
1118 /* Global hash table for the tags table and global table for file
1121 static varray_t file_desc = INIT_VARRAY (efdr_t);
1123 static struct hash_control *tag_hash;
1125 /* Static types for int and void. Also, remember the last function's
1126 type (which is set up when we encounter the declaration for the
1127 function, and used when the end block for the function is emitted. */
1129 static type_info_t int_type_info;
1130 static type_info_t void_type_info;
1131 static type_info_t last_func_type_info;
1132 static symbolS *last_func_sym_value;
1135 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1136 really should use bt_Void, but this causes the current ecoff GDB to
1137 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1138 2.0) doesn't understand it, even though the compiler generates it.
1139 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1140 suite, but for now go with what works.
1142 It would make sense for the .type and .scl directives to use the
1143 ECOFF numbers directly, rather than using the COFF numbers and
1144 mapping them. Unfortunately, this is historically what mips-tfile
1145 expects, and changing gcc now would be a considerable pain (the
1146 native compiler generates debugging information internally, rather
1147 than via the assembler, so it will never use .type or .scl). */
1149 static const bt_t map_coff_types[] = {
1150 bt_Nil, /* T_NULL */
1152 bt_Char, /* T_CHAR */
1153 bt_Short, /* T_SHORT */
1155 bt_Long, /* T_LONG */
1156 bt_Float, /* T_FLOAT */
1157 bt_Double, /* T_DOUBLE */
1158 bt_Struct, /* T_STRUCT */
1159 bt_Union, /* T_UNION */
1160 bt_Enum, /* T_ENUM */
1161 bt_Enum, /* T_MOE */
1162 bt_UChar, /* T_UCHAR */
1163 bt_UShort, /* T_USHORT */
1164 bt_UInt, /* T_UINT */
1165 bt_ULong /* T_ULONG */
1168 /* Convert COFF storage class to ECOFF storage class. */
1169 static const sc_t map_coff_storage[] = {
1170 sc_Nil, /* 0: C_NULL */
1171 sc_Abs, /* 1: C_AUTO auto var */
1172 sc_Undefined, /* 2: C_EXT external */
1173 sc_Data, /* 3: C_STAT static */
1174 sc_Register, /* 4: C_REG register */
1175 sc_Undefined, /* 5: C_EXTDEF ??? */
1176 sc_Text, /* 6: C_LABEL label */
1177 sc_Text, /* 7: C_ULABEL user label */
1178 sc_Info, /* 8: C_MOS member of struct */
1179 sc_Abs, /* 9: C_ARG argument */
1180 sc_Info, /* 10: C_STRTAG struct tag */
1181 sc_Info, /* 11: C_MOU member of union */
1182 sc_Info, /* 12: C_UNTAG union tag */
1183 sc_Info, /* 13: C_TPDEF typedef */
1184 sc_Data, /* 14: C_USTATIC ??? */
1185 sc_Info, /* 15: C_ENTAG enum tag */
1186 sc_Info, /* 16: C_MOE member of enum */
1187 sc_Register, /* 17: C_REGPARM register parameter */
1188 sc_Bits, /* 18; C_FIELD bitfield */
1270 sc_Text, /* 100: C_BLOCK block start/end */
1271 sc_Text, /* 101: C_FCN function start/end */
1272 sc_Info, /* 102: C_EOS end of struct/union/enum */
1273 sc_Nil, /* 103: C_FILE file start */
1274 sc_Nil, /* 104: C_LINE line number */
1275 sc_Nil, /* 105: C_ALIAS combined type info */
1276 sc_Nil, /* 106: C_HIDDEN ??? */
1279 /* Convert COFF storage class to ECOFF symbol type. */
1280 static const st_t map_coff_sym_type[] = {
1281 st_Nil, /* 0: C_NULL */
1282 st_Local, /* 1: C_AUTO auto var */
1283 st_Global, /* 2: C_EXT external */
1284 st_Static, /* 3: C_STAT static */
1285 st_Local, /* 4: C_REG register */
1286 st_Global, /* 5: C_EXTDEF ??? */
1287 st_Label, /* 6: C_LABEL label */
1288 st_Label, /* 7: C_ULABEL user label */
1289 st_Member, /* 8: C_MOS member of struct */
1290 st_Param, /* 9: C_ARG argument */
1291 st_Block, /* 10: C_STRTAG struct tag */
1292 st_Member, /* 11: C_MOU member of union */
1293 st_Block, /* 12: C_UNTAG union tag */
1294 st_Typedef, /* 13: C_TPDEF typedef */
1295 st_Static, /* 14: C_USTATIC ??? */
1296 st_Block, /* 15: C_ENTAG enum tag */
1297 st_Member, /* 16: C_MOE member of enum */
1298 st_Param, /* 17: C_REGPARM register parameter */
1299 st_Member, /* 18; C_FIELD bitfield */
1381 st_Block, /* 100: C_BLOCK block start/end */
1382 st_Proc, /* 101: C_FCN function start/end */
1383 st_End, /* 102: C_EOS end of struct/union/enum */
1384 st_File, /* 103: C_FILE file start */
1385 st_Nil, /* 104: C_LINE line number */
1386 st_Nil, /* 105: C_ALIAS combined type info */
1387 st_Nil, /* 106: C_HIDDEN ??? */
1391 /* Keep track of different sized allocation requests. */
1392 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1394 /* Various statics. */
1395 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1396 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1397 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1398 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1400 static int debug = 0; /* trace functions */
1402 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1405 /* Pseudo symbol to use when putting stabs into the symbol table. */
1406 #ifndef STABS_SYMBOL
1407 #define STABS_SYMBOL "@stabs"
1410 static char stabs_symbol[] = STABS_SYMBOL;
1412 /* Prototypes for functions defined in this file. */
1414 static void add_varray_page PARAMS ((varray_t *vp));
1415 static symint_t add_string PARAMS ((varray_t *vp,
1416 struct hash_control *hash_tbl,
1418 shash_t **ret_hash));
1419 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1420 sc_t storage, symbolS *sym,
1423 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1424 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1425 symint_t sym_index));
1426 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1428 thash_t **hash_tbl));
1429 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1431 static void add_unknown_tag PARAMS ((tag_t *ptag));
1432 static void add_procedure PARAMS ((char *func));
1433 static void add_file PARAMS ((const char *file_name, int indx));
1435 static char *sc_to_string PARAMS ((sc_t storage_class));
1436 static char *st_to_string PARAMS ((st_t symbol_type));
1438 static void mark_stabs PARAMS ((int));
1439 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1440 char *bufptr, unsigned long need));
1441 static unsigned long ecoff_padding_adjust
1442 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1443 unsigned long offset, char **bufptrptr));
1444 static unsigned long ecoff_build_lineno
1445 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1446 unsigned long offset, long *linecntptr));
1447 static unsigned long ecoff_build_symbols
1448 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1449 unsigned long offset));
1450 static unsigned long ecoff_build_procs
1451 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1452 unsigned long offset));
1453 static unsigned long ecoff_build_aux
1454 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1455 unsigned long offset));
1456 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1457 unsigned long offset,
1459 static unsigned long ecoff_build_ss
1460 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1461 unsigned long offset));
1462 static unsigned long ecoff_build_fdr
1463 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1464 unsigned long offset));
1465 static unsigned long ecoff_build_ext
1466 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1467 unsigned long offset, varray_t *ext_strings,
1468 struct hash_control *ext_str_hash));
1469 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1470 static page_t *allocate_page PARAMS ((void));
1471 static scope_t *allocate_scope PARAMS ((void));
1472 static void free_scope PARAMS ((scope_t *ptr));
1473 static vlinks_t *allocate_vlinks PARAMS ((void));
1474 static shash_t *allocate_shash PARAMS ((void));
1475 static thash_t *allocate_thash PARAMS ((void));
1476 static tag_t *allocate_tag PARAMS ((void));
1477 static void free_tag PARAMS ((tag_t *ptr));
1478 static forward_t *allocate_forward PARAMS ((void));
1479 static thead_t *allocate_thead PARAMS ((void));
1480 static void free_thead PARAMS ((thead_t *ptr));
1481 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1483 /* This function should be called when the assembler starts up. */
1486 ecoff_read_begin_hook ()
1488 tag_hash = hash_new ();
1489 top_tag_head = allocate_thead ();
1490 top_tag_head->first_tag = (tag_t *) NULL;
1491 top_tag_head->free = (thead_t *) NULL;
1492 top_tag_head->prev = cur_tag_head;
1493 cur_tag_head = top_tag_head;
1496 /* This function should be called when a symbol is created. */
1499 ecoff_symbol_new_hook (symbolP)
1502 if (cur_file_ptr == (efdr_t *) NULL)
1503 add_file ((const char *) NULL, 0);
1504 symbolP->ecoff_file = cur_file_ptr;
1505 symbolP->ecoff_symbol = NULL;
1506 symbolP->ecoff_undefined = 0;
1509 /* Add a page to a varray object. */
1512 add_varray_page (vp)
1513 varray_t *vp; /* varray to add page to */
1515 vlinks_t *new_links = allocate_vlinks ();
1518 if (vp->object_size > 1)
1519 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1522 new_links->datum = allocate_page ();
1524 alloc_counts[(int)alloc_type_varray].total_alloc++;
1525 alloc_counts[(int)alloc_type_varray].total_pages++;
1527 new_links->start_index = vp->num_allocated;
1528 vp->objects_last_page = 0;
1530 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1531 vp->first = vp->last = new_links;
1533 { /* 2nd or greater allocation */
1534 new_links->prev = vp->last;
1535 vp->last->next = new_links;
1536 vp->last = new_links;
1540 /* Add a string (and null pad) to one of the string tables. */
1543 add_string (vp, hash_tbl, str, ret_hash)
1544 varray_t *vp; /* string obstack */
1545 struct hash_control *hash_tbl; /* ptr to hash table */
1546 const char *str; /* string */
1547 shash_t **ret_hash; /* return hash pointer */
1549 register unsigned long len = strlen (str);
1550 register shash_t *hash_ptr;
1552 if (len >= PAGE_USIZE)
1553 as_fatal ("String too big (%lu bytes)", len);
1555 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1556 if (hash_ptr == (shash_t *) NULL)
1558 register const char *err;
1560 if (vp->objects_last_page + len >= PAGE_USIZE)
1563 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1564 add_varray_page (vp);
1567 hash_ptr = allocate_shash ();
1568 hash_ptr->indx = vp->num_allocated;
1570 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1572 vp->objects_last_page += len + 1;
1573 vp->num_allocated += len + 1;
1575 strcpy (hash_ptr->string, str);
1577 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1579 as_fatal ("Inserting \"%s\" into string hash table: %s",
1583 if (ret_hash != (shash_t **) NULL)
1584 *ret_hash = hash_ptr;
1586 return hash_ptr->indx;
1589 /* Add debugging information for a symbol. */
1592 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1593 const char *str; /* symbol name */
1594 st_t type; /* symbol type */
1595 sc_t storage; /* storage class */
1596 symbolS *sym_value; /* associated symbol. */
1597 symint_t value; /* value of symbol */
1598 symint_t indx; /* index to local/aux. syms */
1601 register scope_t *pscope;
1602 register thead_t *ptag_head;
1603 register tag_t *ptag;
1604 register tag_t *ptag_next;
1605 register varray_t *vp;
1606 register int scope_delta = 0;
1607 shash_t *hash_ptr = (shash_t *) NULL;
1609 if (cur_file_ptr == (efdr_t *) NULL)
1610 as_fatal ("no current file pointer");
1612 vp = &cur_file_ptr->symbols;
1614 if (vp->objects_last_page == vp->objects_per_page)
1615 add_varray_page (vp);
1617 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1619 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1620 psym->name = S_GET_NAME (sym_value);
1623 psym->as_sym = sym_value;
1624 if (sym_value != (symbolS *) NULL)
1625 sym_value->ecoff_symbol = psym;
1626 psym->file_ptr = cur_file_ptr;
1627 psym->proc_ptr = cur_proc_ptr;
1628 psym->begin_ptr = (localsym_t *) NULL;
1629 psym->index_ptr = (aux_t *) NULL;
1630 psym->forward_ref = (forward_t *) NULL;
1631 psym->sym_index = -1;
1632 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1633 psym->ecoff_sym.asym.value = value;
1634 psym->ecoff_sym.asym.st = (unsigned) type;
1635 psym->ecoff_sym.asym.sc = (unsigned) storage;
1636 psym->ecoff_sym.asym.index = indx;
1638 /* If there is an associated symbol, we wait until the end of the
1639 assembly before deciding where to put the name (it may be just an
1640 external symbol). Otherwise, this is just a debugging symbol and
1641 the name should go with the current file. */
1642 if (sym_value == (symbolS *) NULL)
1643 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1645 : add_string (&cur_file_ptr->strings,
1646 cur_file_ptr->str_hash,
1650 ++vp->num_allocated;
1652 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1655 /* Save the symbol within the hash table if this is a static
1656 item, and it has a name. */
1657 if (hash_ptr != (shash_t *) NULL
1658 && (type == st_Global || type == st_Static || type == st_Label
1659 || type == st_Proc || type == st_StaticProc))
1660 hash_ptr->sym_ptr = psym;
1662 /* push or pop a scope if appropriate. */
1668 case st_File: /* beginning of file */
1669 case st_Proc: /* procedure */
1670 case st_StaticProc: /* static procedure */
1671 case st_Block: /* begin scope */
1672 pscope = allocate_scope ();
1673 pscope->prev = cur_file_ptr->cur_scope;
1674 pscope->lsym = psym;
1675 pscope->type = type;
1676 cur_file_ptr->cur_scope = pscope;
1678 if (type != st_File)
1681 /* For every block type except file, struct, union, or
1682 enumeration blocks, push a level on the tag stack. We omit
1683 file types, so that tags can span file boundaries. */
1684 if (type != st_File && storage != sc_Info)
1686 ptag_head = allocate_thead ();
1687 ptag_head->first_tag = 0;
1688 ptag_head->prev = cur_tag_head;
1689 cur_tag_head = ptag_head;
1694 pscope = cur_file_ptr->cur_scope;
1695 if (pscope == (scope_t *) NULL)
1696 as_fatal ("too many st_End's");
1699 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1701 psym->begin_ptr = pscope->lsym;
1703 if (begin_type != st_File)
1706 /* Except for file, structure, union, or enumeration end
1707 blocks remove all tags created within this scope. */
1708 if (begin_type != st_File && storage != sc_Info)
1710 ptag_head = cur_tag_head;
1711 cur_tag_head = ptag_head->prev;
1713 for (ptag = ptag_head->first_tag;
1714 ptag != (tag_t *) NULL;
1717 if (ptag->forward_ref != (forward_t *) NULL)
1718 add_unknown_tag (ptag);
1720 ptag_next = ptag->same_block;
1721 ptag->hash_ptr->tag_ptr = ptag->same_name;
1725 free_thead (ptag_head);
1728 cur_file_ptr->cur_scope = pscope->prev;
1730 /* block begin gets next sym #. This is set when we know
1731 the symbol index value. */
1733 /* Functions push two or more aux words as follows:
1734 1st word: index+1 of the end symbol (filled in later).
1735 2nd word: type of the function (plus any aux words needed).
1736 Also, tie the external pointer back to the function begin symbol. */
1737 if (begin_type != st_File && begin_type != st_Block)
1740 varray_t *svp = &cur_file_ptr->aux_syms;
1742 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1743 pscope->lsym->index_ptr =
1744 &svp->last->datum->aux[svp->objects_last_page - 1];
1745 ty = add_aux_sym_tir (&last_func_type_info,
1747 &cur_file_ptr->thash_head[0]);
1749 /* This seems to be unnecessary. I'm not even sure what it is
1750 * intended to do. It's from mips-tfile.
1751 * if (last_func_sym_value != (symbolS *) NULL)
1753 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1754 * last_func_sym_value->index = ty;
1759 free_scope (pscope);
1763 cur_file_ptr->nested_scopes += scope_delta;
1766 if (debug && type != st_File
1767 && (debug > 2 || type == st_Block || type == st_End
1768 || type == st_Proc || type == st_StaticProc))
1770 char *sc_str = sc_to_string (storage);
1771 char *st_str = st_to_string (type);
1772 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1775 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1776 value, depth, sc_str);
1778 if (str_start && str_end_p1 - str_start > 0)
1779 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1782 unsigned long len = strlen (st_str);
1783 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1791 /* Add an auxiliary symbol (passing a symint). This is actually used
1792 for integral aux types, not just symints. */
1795 add_aux_sym_symint (aux_word)
1796 symint_t aux_word; /* auxiliary information word */
1798 register varray_t *vp;
1799 register aux_t *aux_ptr;
1801 if (cur_file_ptr == (efdr_t *) NULL)
1802 as_fatal ("no current file pointer");
1804 vp = &cur_file_ptr->aux_syms;
1806 if (vp->objects_last_page == vp->objects_per_page)
1807 add_varray_page (vp);
1809 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1810 aux_ptr->type = aux_isym;
1811 aux_ptr->data.isym = aux_word;
1813 return vp->num_allocated++;
1817 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1820 add_aux_sym_rndx (file_index, sym_index)
1824 register varray_t *vp;
1825 register aux_t *aux_ptr;
1827 if (cur_file_ptr == (efdr_t *) NULL)
1828 as_fatal ("no current file pointer");
1830 vp = &cur_file_ptr->aux_syms;
1832 if (vp->objects_last_page == vp->objects_per_page)
1833 add_varray_page (vp);
1835 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1836 aux_ptr->type = aux_rndx;
1837 aux_ptr->data.rndx.rfd = file_index;
1838 aux_ptr->data.rndx.index = sym_index;
1840 return vp->num_allocated++;
1843 /* Add an auxiliary symbol (passing the basic type and possibly
1844 type qualifiers). */
1847 add_aux_sym_tir (t, state, hash_tbl)
1848 type_info_t *t; /* current type information */
1849 hash_state_t state; /* whether to hash type or not */
1850 thash_t **hash_tbl; /* pointer to hash table to use */
1852 register varray_t *vp;
1853 register aux_t *aux_ptr;
1854 static AUXU init_aux;
1859 if (cur_file_ptr == (efdr_t *) NULL)
1860 as_fatal ("no current file pointer");
1862 vp = &cur_file_ptr->aux_syms;
1865 aux.ti.bt = (int) t->basic_type;
1866 aux.ti.continued = 0;
1867 aux.ti.fBitfield = t->bitfield;
1869 aux.ti.tq0 = (int) t->type_qualifiers[0];
1870 aux.ti.tq1 = (int) t->type_qualifiers[1];
1871 aux.ti.tq2 = (int) t->type_qualifiers[2];
1872 aux.ti.tq3 = (int) t->type_qualifiers[3];
1873 aux.ti.tq4 = (int) t->type_qualifiers[4];
1874 aux.ti.tq5 = (int) t->type_qualifiers[5];
1877 /* For anything that adds additional information, we must not hash,
1878 so check here, and reset our state. */
1880 if (state != hash_no
1881 && (t->type_qualifiers[0] == tq_Array
1882 || t->type_qualifiers[1] == tq_Array
1883 || t->type_qualifiers[2] == tq_Array
1884 || t->type_qualifiers[3] == tq_Array
1885 || t->type_qualifiers[4] == tq_Array
1886 || t->type_qualifiers[5] == tq_Array
1887 || t->basic_type == bt_Struct
1888 || t->basic_type == bt_Union
1889 || t->basic_type == bt_Enum
1891 || t->num_dims > 0))
1894 /* See if we can hash this type, and save some space, but some types
1895 can't be hashed (because they contain arrays or continuations),
1896 and others can be put into the hash list, but cannot use existing
1897 types because other aux entries precede this one. */
1899 if (state != hash_no)
1901 register thash_t *hash_ptr;
1902 register symint_t hi;
1904 hi = aux.isym & ((1 << HASHBITS) - 1);
1907 for (hash_ptr = hash_tbl[hi];
1908 hash_ptr != (thash_t *)0;
1909 hash_ptr = hash_ptr->next)
1911 if (aux.isym == hash_ptr->type.isym)
1915 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1916 return hash_ptr->indx;
1918 if (hash_ptr == (thash_t *) NULL)
1920 hash_ptr = allocate_thash ();
1921 hash_ptr->next = hash_tbl[hi];
1922 hash_ptr->type = aux;
1923 hash_ptr->indx = vp->num_allocated;
1924 hash_tbl[hi] = hash_ptr;
1928 /* Everything is set up, add the aux symbol. */
1929 if (vp->objects_last_page == vp->objects_per_page)
1930 add_varray_page (vp);
1932 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1933 aux_ptr->type = aux_tir;
1934 aux_ptr->data = aux;
1936 ret = vp->num_allocated++;
1938 /* Add bitfield length if it exists.
1940 NOTE: Mips documentation claims bitfield goes at the end of the
1941 AUX record, but the DECstation compiler emits it here.
1942 (This would only make a difference for enum bitfields.)
1944 Also note: We use the last size given since gcc may emit 2
1945 for an enum bitfield. */
1948 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1951 /* Add tag information if needed. Structure, union, and enum
1952 references add 2 aux symbols: a [file index, symbol index]
1953 pointer to the structure type, and the current file index. */
1955 if (t->basic_type == bt_Struct
1956 || t->basic_type == bt_Union
1957 || t->basic_type == bt_Enum)
1959 register symint_t file_index = t->tag_ptr->ifd;
1960 register localsym_t *sym = t->tag_ptr->sym;
1961 register forward_t *forward_ref = allocate_forward ();
1963 if (sym != (localsym_t *) NULL)
1965 forward_ref->next = sym->forward_ref;
1966 sym->forward_ref = forward_ref;
1970 forward_ref->next = t->tag_ptr->forward_ref;
1971 t->tag_ptr->forward_ref = forward_ref;
1974 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1975 forward_ref->index_ptr
1976 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1978 (void) add_aux_sym_symint (file_index);
1979 forward_ref->ifd_ptr
1980 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1983 /* Add information about array bounds if they exist. */
1984 for (i = 0; i < t->num_dims; i++)
1986 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1987 cur_file_ptr->int_type);
1989 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1990 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1991 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1992 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1994 : (t->sizes[i] * 8) / t->dimensions[i]);
1997 /* NOTE: Mips documentation claims that the bitfield width goes here.
1998 But it needs to be emitted earlier. */
2003 /* Add a tag to the tag table (unless it already exists). */
2006 get_tag (tag, sym, basic_type)
2007 const char *tag; /* tag name */
2008 localsym_t *sym; /* tag start block */
2009 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2015 if (cur_file_ptr == (efdr_t *) NULL)
2016 as_fatal ("no current file pointer");
2018 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2020 if (hash_ptr != (shash_t *) NULL
2021 && hash_ptr->tag_ptr != (tag_t *) NULL)
2023 tag_ptr = hash_ptr->tag_ptr;
2024 if (sym != (localsym_t *) NULL)
2026 tag_ptr->basic_type = basic_type;
2027 tag_ptr->ifd = cur_file_ptr->file_index;
2033 if (hash_ptr == (shash_t *) NULL)
2037 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2039 hash_ptr = allocate_shash ();
2040 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2042 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2044 hash_ptr->string = perm;
2047 tag_ptr = allocate_tag ();
2048 tag_ptr->forward_ref = (forward_t *) NULL;
2049 tag_ptr->hash_ptr = hash_ptr;
2050 tag_ptr->same_name = hash_ptr->tag_ptr;
2051 tag_ptr->basic_type = basic_type;
2053 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2055 : cur_file_ptr->file_index);
2056 tag_ptr->same_block = cur_tag_head->first_tag;
2058 cur_tag_head->first_tag = tag_ptr;
2059 hash_ptr->tag_ptr = tag_ptr;
2064 /* Add an unknown {struct, union, enum} tag. */
2067 add_unknown_tag (ptag)
2068 tag_t *ptag; /* pointer to tag information */
2070 shash_t *hash_ptr = ptag->hash_ptr;
2071 char *name = hash_ptr->string;
2078 char *agg_type = "{unknown aggregate type}";
2079 switch (ptag->basic_type)
2081 case bt_Struct: agg_type = "struct"; break;
2082 case bt_Union: agg_type = "union"; break;
2083 case bt_Enum: agg_type = "enum"; break;
2087 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2088 hash_ptr->len, name_start);
2092 sym = add_ecoff_symbol (name,
2099 (void) add_ecoff_symbol (name,
2106 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2108 *pf = ptag->forward_ref;
2111 /* Add a procedure to the current file's list of procedures, and record
2112 this is the current procedure. */
2115 add_procedure (func)
2116 char *func; /* func name */
2118 register varray_t *vp;
2119 register proc_t *new_proc_ptr;
2123 fputc ('\n', stderr);
2126 if (cur_file_ptr == (efdr_t *) NULL)
2127 as_fatal ("no current file pointer");
2129 vp = &cur_file_ptr->procs;
2131 if (vp->objects_last_page == vp->objects_per_page)
2132 add_varray_page (vp);
2134 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2136 vp->num_allocated++;
2138 new_proc_ptr->pdr.isym = -1;
2139 new_proc_ptr->pdr.iline = -1;
2140 new_proc_ptr->pdr.lnLow = -1;
2141 new_proc_ptr->pdr.lnHigh = -1;
2143 /* Push the start of the function. */
2144 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2145 symbol_find_or_make (func),
2146 (symint_t) 0, (symint_t) 0);
2150 /* Fill in the linenos preceding the .ent, if any. */
2151 if (noproc_lineno != (lineno_list_t *) NULL)
2155 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2156 l->proc = new_proc_ptr;
2157 *last_lineno_ptr = noproc_lineno;
2158 while (*last_lineno_ptr != NULL)
2159 last_lineno_ptr = &(*last_lineno_ptr)->next;
2160 noproc_lineno = (lineno_list_t *) NULL;
2164 /* Add a new filename, and set up all of the file relative
2165 virtual arrays (strings, symbols, aux syms, etc.). Record
2166 where the current file structure lives. */
2169 add_file (file_name, indx)
2170 const char *file_name; /* file name */
2173 register int first_ch;
2174 register efdr_t *fil_ptr;
2178 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2181 /* If the file name is NULL, then no .file symbol appeared, and we
2182 want to use the actual file name. */
2183 if (file_name == (const char *) NULL)
2187 if (first_file != (efdr_t *) NULL)
2188 as_fatal ("fake .file after real one");
2189 as_where (&file, (unsigned int *) NULL);
2190 file_name = (const char *) file;
2195 listing_source_file (file_name);
2198 /* If we're creating stabs, then we don't actually make a new FDR.
2199 Instead, we just create a stabs symbol. */
2202 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2203 symbol_new ("L0\001", now_seg,
2204 (valueT) frag_now_fix (),
2206 0, ECOFF_MARK_STAB (N_SOL));
2210 first_ch = *file_name;
2212 /* See if the file has already been created. */
2213 for (fil_ptr = first_file;
2214 fil_ptr != (efdr_t *) NULL;
2215 fil_ptr = fil_ptr->next_file)
2217 if (first_ch == fil_ptr->name[0]
2218 && strcmp (file_name, fil_ptr->name) == 0)
2220 cur_file_ptr = fil_ptr;
2225 /* If this is a new file, create it. */
2226 if (fil_ptr == (efdr_t *) NULL)
2228 if (file_desc.objects_last_page == file_desc.objects_per_page)
2229 add_varray_page (&file_desc);
2231 fil_ptr = cur_file_ptr =
2232 &file_desc.last->datum->file[file_desc.objects_last_page++];
2233 *fil_ptr = init_file;
2235 fil_ptr->file_index = indx;
2236 ++file_desc.num_allocated;
2238 /* Allocate the string hash table. */
2239 fil_ptr->str_hash = hash_new ();
2241 /* Make sure 0 byte in string table is null */
2242 add_string (&fil_ptr->strings,
2247 if (strlen (file_name) > PAGE_USIZE - 2)
2248 as_fatal ("Filename goes over one page boundary.");
2250 /* Push the start of the filename. We assume that the filename
2251 will be stored at string offset 1. */
2252 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2254 (symint_t) 0, (symint_t) 0);
2255 fil_ptr->fdr.rss = 1;
2256 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2258 /* Update the linked list of file descriptors. */
2259 *last_file_ptr = fil_ptr;
2260 last_file_ptr = &fil_ptr->next_file;
2262 /* Add void & int types to the file (void should be first to catch
2263 errant 0's within the index fields). */
2264 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2266 &cur_file_ptr->thash_head[0]);
2268 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2270 &cur_file_ptr->thash_head[0]);
2276 /* Convert storage class to string. */
2279 sc_to_string(storage_class)
2282 switch(storage_class)
2284 case sc_Nil: return "Nil,";
2285 case sc_Text: return "Text,";
2286 case sc_Data: return "Data,";
2287 case sc_Bss: return "Bss,";
2288 case sc_Register: return "Register,";
2289 case sc_Abs: return "Abs,";
2290 case sc_Undefined: return "Undefined,";
2291 case sc_CdbLocal: return "CdbLocal,";
2292 case sc_Bits: return "Bits,";
2293 case sc_CdbSystem: return "CdbSystem,";
2294 case sc_RegImage: return "RegImage,";
2295 case sc_Info: return "Info,";
2296 case sc_UserStruct: return "UserStruct,";
2297 case sc_SData: return "SData,";
2298 case sc_SBss: return "SBss,";
2299 case sc_RData: return "RData,";
2300 case sc_Var: return "Var,";
2301 case sc_Common: return "Common,";
2302 case sc_SCommon: return "SCommon,";
2303 case sc_VarRegister: return "VarRegister,";
2304 case sc_Variant: return "Variant,";
2305 case sc_SUndefined: return "SUndefined,";
2306 case sc_Init: return "Init,";
2307 case sc_Max: return "Max,";
2317 /* Convert symbol type to string. */
2320 st_to_string(symbol_type)
2325 case st_Nil: return "Nil,";
2326 case st_Global: return "Global,";
2327 case st_Static: return "Static,";
2328 case st_Param: return "Param,";
2329 case st_Local: return "Local,";
2330 case st_Label: return "Label,";
2331 case st_Proc: return "Proc,";
2332 case st_Block: return "Block,";
2333 case st_End: return "End,";
2334 case st_Member: return "Member,";
2335 case st_Typedef: return "Typedef,";
2336 case st_File: return "File,";
2337 case st_RegReloc: return "RegReloc,";
2338 case st_Forward: return "Forward,";
2339 case st_StaticProc: return "StaticProc,";
2340 case st_Constant: return "Constant,";
2341 case st_Str: return "String,";
2342 case st_Number: return "Number,";
2343 case st_Expr: return "Expr,";
2344 case st_Type: return "Type,";
2345 case st_Max: return "Max,";
2353 /* Parse .begin directives which have a label as the first argument
2354 which gives the location of the start of the block. */
2357 ecoff_directive_begin (ignore)
2363 if (cur_file_ptr == (efdr_t *) NULL)
2365 as_warn (".begin directive without a preceding .file directive");
2366 demand_empty_rest_of_line ();
2370 if (cur_proc_ptr == (proc_t *) NULL)
2372 as_warn (".begin directive without a preceding .ent directive");
2373 demand_empty_rest_of_line ();
2377 name = input_line_pointer;
2378 name_end = get_symbol_end ();
2380 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2381 symbol_find_or_make (name),
2382 (symint_t) 0, (symint_t) 0);
2384 *input_line_pointer = name_end;
2386 /* The line number follows, but we don't use it. */
2387 (void) get_absolute_expression ();
2388 demand_empty_rest_of_line ();
2391 /* Parse .bend directives which have a label as the first argument
2392 which gives the location of the end of the block. */
2395 ecoff_directive_bend (ignore)
2402 if (cur_file_ptr == (efdr_t *) NULL)
2404 as_warn (".bend directive without a preceding .file directive");
2405 demand_empty_rest_of_line ();
2409 if (cur_proc_ptr == (proc_t *) NULL)
2411 as_warn (".bend directive without a preceding .ent directive");
2412 demand_empty_rest_of_line ();
2416 name = input_line_pointer;
2417 name_end = get_symbol_end ();
2419 /* The value is the distance between the .bend directive and the
2420 corresponding symbol. We fill in the offset when we write out
2422 endsym = symbol_find (name);
2423 if (endsym == (symbolS *) NULL)
2424 as_warn (".bend directive names unknown symbol");
2426 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2427 (symint_t) 0, (symint_t) 0);
2429 *input_line_pointer = name_end;
2431 /* The line number follows, but we don't use it. */
2432 (void) get_absolute_expression ();
2433 demand_empty_rest_of_line ();
2436 /* COFF debugging information is provided as a series of directives
2437 (.def, .scl, etc.). We build up information as we read the
2438 directives in the following static variables, and file it away when
2439 we reach the .endef directive. */
2440 static char *coff_sym_name;
2441 static type_info_t coff_type;
2442 static sc_t coff_storage_class;
2443 static st_t coff_symbol_typ;
2444 static int coff_is_function;
2445 static char *coff_tag;
2446 static valueT coff_value;
2447 symbolS *coff_sym_value;
2448 static int coff_inside_enumeration;
2450 /* Handle a .def directive: start defining a symbol. */
2453 ecoff_directive_def (ignore)
2461 name = input_line_pointer;
2462 name_end = get_symbol_end ();
2464 if (coff_sym_name != (char *) NULL)
2465 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2466 else if (*name == '\0')
2467 as_warn ("Empty symbol name in .def; ignored");
2470 if (coff_sym_name != (char *) NULL)
2471 free (coff_sym_name);
2472 if (coff_tag != (char *) NULL)
2474 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2475 strcpy (coff_sym_name, name);
2476 coff_type = type_info_init;
2477 coff_storage_class = sc_Nil;
2478 coff_symbol_typ = st_Nil;
2479 coff_is_function = 0;
2480 coff_tag = (char *) NULL;
2482 coff_sym_value = (symbolS *) NULL;
2485 *input_line_pointer = name_end;
2487 demand_empty_rest_of_line ();
2490 /* Handle a .dim directive, used to give dimensions for an array. The
2491 arguments are comma separated numbers. mips-tfile assumes that
2492 there will not be more than 6 dimensions, and gdb won't read any
2493 more than that anyhow, so I will also make that assumption. */
2496 ecoff_directive_dim (ignore)
2502 if (coff_sym_name == (char *) NULL)
2504 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2505 demand_empty_rest_of_line ();
2509 for (i = 0; i < N_TQ; i++)
2512 dimens[i] = get_absolute_expression ();
2513 if (*input_line_pointer == ',')
2514 ++input_line_pointer;
2517 if (*input_line_pointer != '\n'
2518 && *input_line_pointer != ';')
2519 as_warn ("Badly formed .dim directive");
2527 /* The dimensions are stored away in reverse order. */
2530 if (coff_type.num_dims >= N_TQ)
2532 as_warn ("Too many .dim entries");
2535 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2536 ++coff_type.num_dims;
2539 demand_empty_rest_of_line ();
2542 /* Handle a .scl directive, which sets the COFF storage class of the
2546 ecoff_directive_scl (ignore)
2551 if (coff_sym_name == (char *) NULL)
2553 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2554 demand_empty_rest_of_line ();
2558 val = get_absolute_expression ();
2560 coff_symbol_typ = map_coff_sym_type[val];
2561 coff_storage_class = map_coff_storage[val];
2563 demand_empty_rest_of_line ();
2566 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2567 .size can have multiple arguments. We humor it, although gcc will
2568 never generate more than one argument. */
2571 ecoff_directive_size (ignore)
2577 if (coff_sym_name == (char *) NULL)
2579 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2580 demand_empty_rest_of_line ();
2584 for (i = 0; i < N_TQ; i++)
2587 sizes[i] = get_absolute_expression ();
2588 if (*input_line_pointer == ',')
2589 ++input_line_pointer;
2592 if (*input_line_pointer != '\n'
2593 && *input_line_pointer != ';')
2594 as_warn ("Badly formed .size directive");
2602 /* The sizes are stored away in reverse order. */
2605 if (coff_type.num_sizes >= N_TQ)
2607 as_warn ("Too many .size entries");
2610 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2611 ++coff_type.num_sizes;
2614 demand_empty_rest_of_line ();
2617 /* Handle the .type directive, which gives the COFF type of the
2621 ecoff_directive_type (ignore)
2628 if (coff_sym_name == (char *) NULL)
2630 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2631 demand_empty_rest_of_line ();
2635 val = get_absolute_expression ();
2637 coff_type.orig_type = BTYPE (val);
2638 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2640 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2641 while (val &~ N_BTMASK)
2643 if (tq_ptr == &coff_type.type_qualifiers[0])
2645 as_warn ("Too derived values in .type argument");
2650 else if (ISFCN (val))
2651 *--tq_ptr = tq_Proc;
2652 else if (ISARY (val))
2653 *--tq_ptr = tq_Array;
2655 as_fatal ("Unrecognized .type argument");
2660 tq_shft = &coff_type.type_qualifiers[0];
2661 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2662 *tq_shft++ = *tq_ptr++;
2664 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2666 /* If this is a function, ignore it, so that we don't get two
2667 entries (one from the .ent, and one for the .def that
2668 precedes it). Save the type information so that the end
2669 block can properly add it after the begin block index. For
2670 MIPS knows what reason, we must strip off the function type
2672 coff_is_function = 1;
2673 tq_shft[-1] = tq_Nil;
2676 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2677 *tq_shft++ = tq_Nil;
2679 demand_empty_rest_of_line ();
2682 /* Handle the .tag directive, which gives the name of a structure,
2686 ecoff_directive_tag (ignore)
2692 if (coff_sym_name == (char *) NULL)
2694 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2695 demand_empty_rest_of_line ();
2699 name = input_line_pointer;
2700 name_end = get_symbol_end ();
2702 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2703 strcpy (coff_tag, name);
2705 *input_line_pointer = name_end;
2707 demand_empty_rest_of_line ();
2710 /* Handle the .val directive, which gives the value of the symbol. It
2711 may be the name of a static or global symbol. */
2714 ecoff_directive_val (ignore)
2717 if (coff_sym_name == (char *) NULL)
2719 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2720 demand_empty_rest_of_line ();
2724 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2725 coff_value = get_absolute_expression ();
2731 name = input_line_pointer;
2732 name_end = get_symbol_end ();
2734 if (strcmp (name, ".") == 0)
2735 as_warn ("`.val .' not supported");
2737 coff_sym_value = symbol_find_or_make (name);
2739 *input_line_pointer = name_end;
2741 /* FIXME: gcc can generate address expressions here in unusual
2742 cases (search for "obscure" in sdbout.c), although this is
2743 very unlikely for a MIPS chip. */
2746 demand_empty_rest_of_line ();
2749 /* Handle the .endef directive, which terminates processing of COFF
2750 debugging information for a symbol. */
2753 ecoff_directive_endef (ignore)
2760 demand_empty_rest_of_line ();
2762 if (coff_sym_name == (char *) NULL)
2764 as_warn (".endef pseudo-op used before .def; ignored");
2768 name = coff_sym_name;
2769 coff_sym_name = (char *) NULL;
2771 /* If the symbol is a static or external, we have already gotten the
2772 appropriate type and class, so make sure we don't override those
2773 values. This is needed because there are some type and classes
2774 that are not in COFF, such as short data, etc. */
2775 if (coff_sym_value != (symbolS *) NULL)
2777 coff_symbol_typ = st_Nil;
2778 coff_storage_class = sc_Nil;
2781 coff_type.extra_sizes = coff_tag != (char *) NULL;
2782 if (coff_type.num_dims > 0)
2784 int diff = coff_type.num_dims - coff_type.num_sizes;
2785 int i = coff_type.num_dims - 1;
2788 if (coff_type.num_sizes != 1 || diff < 0)
2790 as_warn ("Bad COFF debugging info");
2794 /* If this is an array, make sure the same number of dimensions
2795 and sizes were passed, creating extra sizes for multiply
2796 dimensioned arrays if not passed. */
2797 coff_type.extra_sizes = 0;
2800 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2803 coff_type.sizes[j] = (((j - diff) >= 0)
2804 ? coff_type.sizes[j - diff]
2809 coff_type.num_sizes = i + 1;
2810 for (i--; i >= 0; i--)
2811 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2812 / coff_type.dimensions[i + 1]);
2815 else if (coff_symbol_typ == st_Member
2816 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2818 /* Is this a bitfield? This is indicated by a structure memeber
2819 having a size field that isn't an array. */
2820 coff_type.bitfield = 1;
2823 /* Except for enumeration members & begin/ending of scopes, put the
2824 type word in the aux. symbol table. */
2825 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2827 else if (coff_inside_enumeration)
2828 indx = cur_file_ptr->void_type;
2831 if (coff_type.basic_type == bt_Struct
2832 || coff_type.basic_type == bt_Union
2833 || coff_type.basic_type == bt_Enum)
2835 if (coff_tag == (char *) NULL)
2837 as_warn ("No tag specified for %s", name);
2841 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2842 coff_type.basic_type);
2845 if (coff_is_function)
2847 last_func_type_info = coff_type;
2848 last_func_sym_value = coff_sym_value;
2852 indx = add_aux_sym_tir (&coff_type,
2854 &cur_file_ptr->thash_head[0]);
2857 /* Do any last minute adjustments that are necessary. */
2858 switch (coff_symbol_typ)
2863 /* For the beginning of structs, unions, and enumerations, the
2864 size info needs to be passed in the value field. */
2866 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2869 as_warn ("Bad COFF debugging information");
2873 coff_value = coff_type.sizes[0];
2875 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2878 /* For the end of structs, unions, and enumerations, omit the
2879 name which is always ".eos". This needs to be done last, so
2880 that any error reporting above gives the correct name. */
2883 name = (char *) NULL;
2885 coff_inside_enumeration = 0;
2888 /* Members of structures and unions that aren't bitfields, need
2889 to adjust the value from a byte offset to a bit offset.
2890 Members of enumerations do not have the value adjusted, and
2891 can be distinguished by indx == indexNil. For enumerations,
2892 update the maximum enumeration value. */
2894 if (! coff_type.bitfield && ! coff_inside_enumeration)
2900 /* Add the symbol. */
2901 sym = add_ecoff_symbol (name,
2905 (symint_t) coff_value,
2908 /* deal with struct, union, and enum tags. */
2909 if (coff_symbol_typ == st_Block)
2911 /* Create or update the tag information. */
2912 tag_t *tag_ptr = get_tag (name,
2914 coff_type.basic_type);
2917 /* Remember any forward references. */
2918 for (pf = &sym->forward_ref;
2919 *pf != (forward_t *) NULL;
2922 *pf = tag_ptr->forward_ref;
2923 tag_ptr->forward_ref = (forward_t *) NULL;
2927 /* Parse .end directives. */
2930 ecoff_directive_end (ignore)
2938 if (cur_file_ptr == (efdr_t *) NULL)
2940 as_warn (".end directive without a preceding .file directive");
2941 demand_empty_rest_of_line ();
2945 if (cur_proc_ptr == (proc_t *) NULL)
2947 as_warn (".end directive without a preceding .ent directive");
2948 demand_empty_rest_of_line ();
2952 name = input_line_pointer;
2953 name_end = get_symbol_end ();
2956 if (! is_name_beginner (ch))
2958 as_warn (".end directive has no name");
2959 *input_line_pointer = name_end;
2960 demand_empty_rest_of_line ();
2964 /* The value is the distance between the .end directive and the
2965 corresponding symbol. We create a fake symbol to hold the
2966 current location, and put in the offset when we write out the
2968 ent = symbol_find (name);
2969 if (ent == (symbolS *) NULL)
2970 as_warn (".end directive names unknown symbol");
2972 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
2973 symbol_new ("L0\001", now_seg,
2974 (valueT) frag_now_fix (),
2976 (symint_t) 0, (symint_t) 0);
2978 cur_proc_ptr = (proc_t *) NULL;
2980 *input_line_pointer = name_end;
2981 demand_empty_rest_of_line ();
2984 /* Parse .ent directives. */
2987 ecoff_directive_ent (ignore)
2994 if (cur_file_ptr == (efdr_t *) NULL)
2995 add_file ((const char *) NULL, 0);
2997 if (cur_proc_ptr != (proc_t *) NULL)
2999 as_warn ("second .ent directive found before .end directive");
3000 demand_empty_rest_of_line ();
3004 name = input_line_pointer;
3005 name_end = get_symbol_end ();
3008 if (! is_name_beginner (ch))
3010 as_warn (".ent directive has no name");
3011 *input_line_pointer = name_end;
3012 demand_empty_rest_of_line ();
3016 add_procedure (name);
3018 *input_line_pointer = name_end;
3020 /* The .ent directive is sometimes followed by a number. I'm not
3021 really sure what the number means. I don't see any way to store
3022 the information in the PDR. The Irix 4 assembler seems to ignore
3025 if (*input_line_pointer == ',')
3027 ++input_line_pointer;
3030 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3031 (void) get_absolute_expression ();
3033 demand_empty_rest_of_line ();
3036 /* Parse .file directives. */
3039 ecoff_directive_file (ignore)
3046 if (cur_proc_ptr != (proc_t *) NULL)
3048 as_warn ("No way to handle .file within .ent/.end section");
3049 demand_empty_rest_of_line ();
3053 indx = (int) get_absolute_expression ();
3055 /* FIXME: we don't have to save the name here. */
3056 name = demand_copy_C_string (&len);
3058 add_file (name, indx - 1);
3060 demand_empty_rest_of_line ();
3063 /* Parse .fmask directives. */
3066 ecoff_directive_fmask (ignore)
3071 if (cur_proc_ptr == (proc_t *) NULL)
3073 as_warn (".fmask outside of .ent");
3074 demand_empty_rest_of_line ();
3078 if (get_absolute_expression_and_terminator (&val) != ',')
3080 as_warn ("Bad .fmask directive");
3081 --input_line_pointer;
3082 demand_empty_rest_of_line ();
3086 cur_proc_ptr->pdr.fregmask = val;
3087 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3089 demand_empty_rest_of_line ();
3092 /* Parse .frame directives. */
3095 ecoff_directive_frame (ignore)
3100 if (cur_proc_ptr == (proc_t *) NULL)
3102 as_warn (".frame outside of .ent");
3103 demand_empty_rest_of_line ();
3107 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3110 if (*input_line_pointer++ != ','
3111 || get_absolute_expression_and_terminator (&val) != ',')
3113 as_warn ("Bad .frame directive");
3114 --input_line_pointer;
3115 demand_empty_rest_of_line ();
3119 cur_proc_ptr->pdr.frameoffset = val;
3121 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3123 demand_empty_rest_of_line ();
3126 /* Parse .mask directives. */
3129 ecoff_directive_mask (ignore)
3134 if (cur_proc_ptr == (proc_t *) NULL)
3136 as_warn (".mask outside of .ent");
3137 demand_empty_rest_of_line ();
3141 if (get_absolute_expression_and_terminator (&val) != ',')
3143 as_warn ("Bad .mask directive");
3144 --input_line_pointer;
3145 demand_empty_rest_of_line ();
3149 cur_proc_ptr->pdr.regmask = val;
3150 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3152 demand_empty_rest_of_line ();
3155 /* Parse .loc directives. */
3158 ecoff_directive_loc (ignore)
3161 lineno_list_t *list;
3164 if (cur_file_ptr == (efdr_t *) NULL)
3166 as_warn (".loc before .file");
3167 demand_empty_rest_of_line ();
3171 if (now_seg != text_section)
3173 as_warn (".loc outside of .text");
3174 demand_empty_rest_of_line ();
3178 /* Skip the file number. */
3180 get_absolute_expression ();
3183 lineno = get_absolute_expression ();
3187 listing_source_line (lineno);
3190 /* If we're building stabs, then output a special label rather than
3191 ECOFF line number info. */
3194 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3195 symbol_new ("L0\001", now_seg,
3196 (valueT) frag_now_fix (),
3202 list = allocate_lineno_list ();
3204 list->next = (lineno_list_t *) NULL;
3205 list->file = cur_file_ptr;
3206 list->proc = cur_proc_ptr;
3207 list->frag = frag_now;
3208 list->paddr = frag_now_fix ();
3209 list->lineno = lineno;
3211 /* A .loc directive will sometimes appear before a .ent directive,
3212 which means that cur_proc_ptr will be NULL here. Arrange to
3214 if (cur_proc_ptr == (proc_t *) NULL)
3218 pl = &noproc_lineno;
3219 while (*pl != (lineno_list_t *) NULL)
3225 *last_lineno_ptr = list;
3226 last_lineno_ptr = &list->next;
3230 /* Make sure the @stabs symbol is emitted. */
3238 /* Add a dummy @stabs dymbol. */
3240 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3242 (symint_t) -1, ECOFF_MARK_STAB (0));
3246 /* Handle .stabs directives. The actual parsing routine is done by a
3247 generic routine. This routine is called via OBJ_PROCESS_STAB.
3248 When this is called, input_line_pointer will be pointing at the
3249 value field of the stab.
3251 .stabs directives have five fields:
3252 "string" a string, encoding the type information.
3253 code a numeric code, defined in <stab.h>
3255 desc a zero or line number
3256 value a numeric value or an address.
3258 If the value is relocatable, we transform this into:
3259 iss points as an index into string space
3260 value value from lookup of the name
3261 st st from lookup of the name
3262 sc sc from lookup of the name
3263 index code|CODE_MASK
3265 If the value is not relocatable, we transform this into:
3266 iss points as an index into string space
3270 index code|CODE_MASK
3272 .stabn directives have four fields (string is null):
3273 code a numeric code, defined in <stab.h>
3275 desc a zero or a line number
3276 value a numeric value or an address. */
3279 ecoff_stab (what, string, type, other, desc)
3286 efdr_t *save_file_ptr = cur_file_ptr;
3293 /* We don't handle .stabd. */
3294 if (what != 's' && what != 'n')
3296 as_bad (".stab%c is not supported", what);
3300 /* A .stabn uses a null name, not an empty string. */
3304 /* We ignore the other field. */
3306 as_warn (".stab%c: ignoring non-zero other field", what);
3308 /* Make sure we have a current file. */
3309 if (cur_file_ptr == (efdr_t *) NULL)
3311 add_file ((const char *) NULL, 0);
3312 save_file_ptr = cur_file_ptr;
3315 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3317 if (stabs_seen == 0)
3320 /* Line number stabs are handled differently, since they have two
3321 values, the line number and the address of the label. We use the
3322 index field (aka desc) to hold the line number, and the value
3323 field to hold the address. The symbol type is st_Label, which
3324 should be different from the other stabs, so that gdb can
3326 if (type == N_SLINE)
3334 listing_source_line ((unsigned int) desc);
3337 dummy_symr.index = desc;
3338 if (dummy_symr.index != desc)
3340 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3345 name = input_line_pointer;
3346 name_end = get_symbol_end ();
3348 sym = symbol_find_or_make (name);
3349 *input_line_pointer = name_end;
3359 if (listing && (type == N_SO || type == N_SOL))
3360 listing_source_file (string);
3363 if (isdigit (*input_line_pointer)
3364 || *input_line_pointer == '-'
3365 || *input_line_pointer == '+')
3369 sym = (symbolS *) NULL;
3370 value = get_absolute_expression ();
3372 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3374 as_warn ("Illegal .stab%c directive, bad character", what);
3382 name = input_line_pointer;
3383 name_end = get_symbol_end ();
3385 sym = symbol_find_or_make (name);
3391 *input_line_pointer = name_end;
3392 if (name_end == '+' || name_end == '-')
3394 ++input_line_pointer;
3395 value = get_absolute_expression ();
3396 if (name_end == '-')
3401 indx = ECOFF_MARK_STAB (type);
3404 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3406 /* Restore normal file type. */
3407 cur_file_ptr = save_file_ptr;
3410 /* Add bytes to the symbolic information buffer. */
3413 ecoff_add_bytes (buf, bufend, bufptr, need)
3423 need -= *bufend - bufptr;
3424 if (need < PAGE_SIZE)
3426 want = (*bufend - *buf) + need;
3427 *buf = xrealloc (*buf, want);
3428 *bufend = *buf + want;
3432 /* Adjust the symbolic information buffer to the alignment required
3433 for the ECOFF target debugging information. */
3435 static unsigned long
3436 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3437 const struct ecoff_debug_swap *backend;
3440 unsigned long offset;
3443 bfd_size_type align;
3445 align = backend->debug_align;
3446 if ((offset & (align - 1)) != 0)
3450 add = align - (offset & (align - 1));
3451 if (*bufend - (*buf + offset) < add)
3452 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3453 memset (*buf + offset, 0, add);
3455 if (bufptrptr != (char **) NULL)
3456 *bufptrptr = *buf + offset;
3462 /* Build the line number information. */
3464 static unsigned long
3465 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3466 const struct ecoff_debug_swap *backend;
3469 unsigned long offset;
3473 register lineno_list_t *l;
3474 lineno_list_t *last;
3481 if (linecntptr != (long *) NULL)
3484 bufptr = *buf + offset;
3486 file = (efdr_t *) NULL;
3487 proc = (proc_t *) NULL;
3488 last = (lineno_list_t *) NULL;
3492 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3497 /* Get the offset to the memory address of the next line number
3498 (in words). Do this first, so that we can skip ahead to the
3499 next useful line number entry. */
3500 if (l->next == (lineno_list_t *) NULL)
3504 count = ((l->next->frag->fr_address + l->next->paddr
3505 - (l->frag->fr_address + l->paddr))
3509 /* Don't change last, so we still get the right delta. */
3514 if (l->file != file || l->proc != proc)
3516 if (l->proc != proc && proc != (proc_t *) NULL)
3517 proc->pdr.lnHigh = last->lineno;
3518 if (l->file != file && file != (efdr_t *) NULL)
3520 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3521 /* The cline field is ill-documented. This is a guess
3522 at the right value. */
3523 file->fdr.cline = totcount + count;
3524 if (linecntptr != (long *) NULL)
3525 *linecntptr += totcount + count;
3529 if (l->file != file)
3532 file->fdr.ilineBase = iline;
3533 file->fdr.cbLineOffset = c;
3535 if (l->proc != proc)
3538 if (proc != (proc_t *) NULL)
3540 proc->pdr.lnLow = l->lineno;
3541 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3542 /* The iline field is ill-documented. This is a
3543 guess at the right value. */
3544 proc->pdr.iline = totcount;
3548 last = (lineno_list_t *) NULL;
3553 /* Get the offset to this line number. */
3554 if (last == (lineno_list_t *) NULL)
3557 delta = l->lineno - last->lineno;
3559 /* Put in the offset to this line number. */
3564 /* 1 is added to each count read. */
3566 /* We can only adjust the word count by up to 15 words at a
3578 if (delta >= -7 && delta <= 7)
3580 if (bufptr >= *bufend)
3581 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3582 *bufptr++ = setcount + (delta << 4);
3590 if (*bufend - bufptr < 3)
3591 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3592 *bufptr++ = setcount + (8 << 4);
3593 if (delta < -0x8000)
3598 else if (delta > 0x7fff)
3608 *bufptr++ = set >> 8;
3609 *bufptr++ = set & 0xffff;
3614 /* Finish adjusting the count. */
3617 if (bufptr >= *bufend)
3618 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3619 /* 1 is added to each count read. */
3638 if (proc != (proc_t *) NULL)
3639 proc->pdr.lnHigh = last->lineno;
3640 if (file != (efdr_t *) NULL)
3642 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3643 file->fdr.cline = totcount;
3646 if (linecntptr != (long *) NULL)
3647 *linecntptr += totcount;
3649 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3654 /* Build and swap out the symbols. */
3656 static unsigned long
3657 ecoff_build_symbols (backend, buf, bufend, offset)
3658 const struct ecoff_debug_swap *backend;
3661 unsigned long offset;
3663 const bfd_size_type external_sym_size = backend->external_sym_size;
3664 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3665 = backend->swap_sym_out;
3668 vlinks_t *file_link;
3670 sym_out = *buf + offset;
3674 /* The symbols are stored by file. */
3675 for (file_link = file_desc.first;
3676 file_link != (vlinks_t *) NULL;
3677 file_link = file_link->next)
3684 if (file_link->next == (vlinks_t *) NULL)
3685 fil_cnt = file_desc.objects_last_page;
3687 fil_cnt = file_desc.objects_per_page;
3688 fil_ptr = file_link->datum->file;
3689 fil_end = fil_ptr + fil_cnt;
3690 for (; fil_ptr < fil_end; fil_ptr++)
3694 fil_ptr->fdr.isymBase = isym;
3696 for (sym_link = fil_ptr->symbols.first;
3697 sym_link != (vlinks_t *) NULL;
3698 sym_link = sym_link->next)
3701 localsym_t *sym_ptr;
3702 localsym_t *sym_end;
3704 if (sym_link->next == (vlinks_t *) NULL)
3705 sym_cnt = fil_ptr->symbols.objects_last_page;
3707 sym_cnt = fil_ptr->symbols.objects_per_page;
3708 sym_ptr = sym_link->datum->sym;
3709 sym_end = sym_ptr + sym_cnt;
3710 for (; sym_ptr < sym_end; sym_ptr++)
3716 know (sym_ptr->file_ptr == fil_ptr);
3718 /* If there is no associated gas symbol, then this
3719 is a pure debugging symbol. We have already
3720 added the name (if any) to fil_ptr->strings.
3721 Otherwise we must decide whether this is an
3722 external or a local symbol (actually, it may be
3723 both if the local provides additional debugging
3724 information for the external). */
3726 as_sym = sym_ptr->as_sym;
3727 if (as_sym != (symbolS *) NULL)
3731 /* The value of a block start symbol is the
3732 offset from the start of the procedure. For
3733 other symbols we just use the gas value (but
3734 we must offset it by the vma of the section,
3735 just as BFD does, because BFD will not see
3737 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3738 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3742 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3743 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3744 if (S_GET_SEGMENT (as_sym)
3745 != S_GET_SEGMENT (begin_sym))
3746 as_warn (".begin/.bend in different segments");
3747 sym_ptr->ecoff_sym.asym.value =
3748 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3751 sym_ptr->ecoff_sym.asym.value =
3752 (S_GET_VALUE (as_sym)
3753 + bfd_get_section_vma (stdoutput,
3754 S_GET_SEGMENT (as_sym)));
3756 /* Set st_Proc to st_StaticProc for local
3758 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3759 && S_IS_DEFINED (as_sym)
3760 && ! S_IS_EXTERNAL (as_sym))
3761 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3763 /* Get the type and storage class based on where
3764 the symbol actually wound up. Traditionally,
3765 N_LBRAC and N_RBRAC are *not* relocated. */
3766 indx = sym_ptr->ecoff_sym.asym.index;
3767 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3768 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3769 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3770 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3771 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3774 const char *segname;
3778 seg = S_GET_SEGMENT (as_sym);
3779 segname = segment_name (seg);
3781 if (S_IS_EXTERNAL (as_sym)
3782 || ! S_IS_DEFINED (as_sym))
3784 else if (seg == text_section)
3789 if (! S_IS_DEFINED (as_sym)
3790 || as_sym->ecoff_undefined)
3792 if (S_GET_VALUE (as_sym) > 0
3793 && (S_GET_VALUE (as_sym)
3794 <= bfd_get_gp_size (stdoutput)))
3799 else if (S_IS_COMMON (as_sym))
3801 if (S_GET_VALUE (as_sym) > 0
3802 && (S_GET_VALUE (as_sym)
3803 <= bfd_get_gp_size (stdoutput)))
3808 else if (seg == text_section)
3810 else if (seg == data_section)
3812 else if (strcmp (segname, ".rdata") == 0
3813 || strcmp (segname, ".rodata") == 0)
3815 else if (strcmp (segname, ".sdata") == 0)
3817 else if (seg == bss_section)
3819 else if (strcmp (segname, ".sbss") == 0)
3821 else if (seg == &bfd_abs_section)
3826 sym_ptr->ecoff_sym.asym.st = (int) st;
3827 sym_ptr->ecoff_sym.asym.sc = (int) sc;
3830 /* This is just an external symbol if it is
3831 outside a procedure and it has a type.
3832 FIXME: g++ will generate symbols which have
3833 different names in the debugging information
3834 than the actual symbol. Should we handle
3836 if ((S_IS_EXTERNAL (as_sym)
3837 || ! S_IS_DEFINED (as_sym))
3838 && sym_ptr->proc_ptr == (proc_t *) NULL
3839 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
3840 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
3843 /* If an st_end symbol has an associated gas
3844 symbol, then it is a local label created for
3845 a .bend or .end directive. Stabs line
3846 numbers will have \001 in the names. */
3848 && sym_ptr->ecoff_sym.asym.st != st_End
3849 && strchr (sym_ptr->name, '\001') == 0)
3850 sym_ptr->ecoff_sym.asym.iss =
3851 add_string (&fil_ptr->strings,
3857 /* We now know the index of this symbol; fill in
3858 locations that have been waiting for that
3860 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3862 localsym_t *begin_ptr;
3866 begin_ptr = sym_ptr->begin_ptr;
3867 know (begin_ptr->sym_index != -1);
3868 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
3869 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3870 sym_ptr->ecoff_sym.asym.iss =
3871 begin_ptr->ecoff_sym.asym.iss;
3873 begin_type = begin_ptr->ecoff_sym.asym.st;
3874 if (begin_type == st_File
3875 || begin_type == st_Block)
3877 begin_ptr->ecoff_sym.asym.index =
3878 isym - ifilesym + 1;
3879 (*swap_sym_out) (stdoutput,
3880 &begin_ptr->ecoff_sym.asym,
3883 + (begin_ptr->sym_index
3884 * external_sym_size)));
3888 know (begin_ptr->index_ptr != (aux_t *) NULL);
3889 begin_ptr->index_ptr->data.isym =
3890 isym - ifilesym + 1;
3893 /* The value of the symbol marking the end of a
3894 procedure is the size of the procedure. The
3895 value of the symbol marking the end of a
3896 block is the offset from the start of the
3897 procedure to the block. */
3898 if (begin_type == st_Proc
3899 || begin_type == st_StaticProc)
3901 know (as_sym != (symbolS *) NULL);
3902 know (begin_ptr->as_sym != (symbolS *) NULL);
3903 if (S_GET_SEGMENT (as_sym)
3904 != S_GET_SEGMENT (begin_ptr->as_sym))
3905 as_warn (".begin/.bend in different segments");
3906 sym_ptr->ecoff_sym.asym.value =
3907 (S_GET_VALUE (as_sym)
3908 - S_GET_VALUE (begin_ptr->as_sym));
3910 else if (begin_type == st_Block
3911 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3915 know (as_sym != (symbolS *) NULL);
3916 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3917 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3918 if (S_GET_SEGMENT (as_sym)
3919 != S_GET_SEGMENT (begin_sym))
3920 as_warn (".begin/.bend in different segments");
3921 sym_ptr->ecoff_sym.asym.value =
3922 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3926 for (f = sym_ptr->forward_ref;
3927 f != (forward_t *) NULL;
3931 f->ifd_ptr->data.isym = fil_ptr->file_index;
3932 f->index_ptr->data.rndx.index = isym - ifilesym;
3937 if (*bufend - sym_out < external_sym_size)
3938 sym_out = ecoff_add_bytes (buf, bufend,
3941 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
3943 sym_out += external_sym_size;
3945 sym_ptr->sym_index = isym;
3947 if (sym_ptr->proc_ptr != (proc_t *) NULL
3948 && sym_ptr->proc_ptr->sym == sym_ptr)
3949 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
3954 /* Record the local symbol index and file number in
3955 case this is an external symbol. Note that this
3956 destroys the asym.index field. */
3957 if (as_sym != (symbolS *) NULL)
3959 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3960 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
3963 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
3965 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
3969 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
3973 return offset + isym * external_sym_size;
3976 /* Swap out the procedure information. */
3978 static unsigned long
3979 ecoff_build_procs (backend, buf, bufend, offset)
3980 const struct ecoff_debug_swap *backend;
3983 unsigned long offset;
3985 const bfd_size_type external_pdr_size = backend->external_pdr_size;
3986 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
3987 = backend->swap_pdr_out;
3991 vlinks_t *file_link;
3993 pdr_out = *buf + offset;
3998 /* The procedures are stored by file. */
3999 for (file_link = file_desc.first;
4000 file_link != (vlinks_t *) NULL;
4001 file_link = file_link->next)
4007 if (file_link->next == (vlinks_t *) NULL)
4008 fil_cnt = file_desc.objects_last_page;
4010 fil_cnt = file_desc.objects_per_page;
4011 fil_ptr = file_link->datum->file;
4012 fil_end = fil_ptr + fil_cnt;
4013 for (; fil_ptr < fil_end; fil_ptr++)
4015 vlinks_t *proc_link;
4018 fil_ptr->fdr.ipdFirst = iproc;
4020 for (proc_link = fil_ptr->procs.first;
4021 proc_link != (vlinks_t *) NULL;
4022 proc_link = proc_link->next)
4028 if (proc_link->next == (vlinks_t *) NULL)
4029 prc_cnt = fil_ptr->procs.objects_last_page;
4031 prc_cnt = fil_ptr->procs.objects_per_page;
4032 proc_ptr = proc_link->datum->proc;
4033 proc_end = proc_ptr + prc_cnt;
4034 for (; proc_ptr < proc_end; proc_ptr++)
4039 adr_sym = proc_ptr->sym->as_sym;
4040 adr = (S_GET_VALUE (adr_sym)
4041 + bfd_get_section_vma (stdoutput,
4042 S_GET_SEGMENT (adr_sym)));
4048 fil_ptr->fdr.adr = adr;
4051 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4052 if (*bufend - pdr_out < external_pdr_size)
4053 pdr_out = ecoff_add_bytes (buf, bufend,
4056 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4057 pdr_out += external_pdr_size;
4061 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4065 return offset + iproc * external_pdr_size;
4068 /* Swap out the aux information. */
4070 static unsigned long
4071 ecoff_build_aux (backend, buf, bufend, offset)
4072 const struct ecoff_debug_swap *backend;
4075 unsigned long offset;
4078 union aux_ext *aux_out;
4080 vlinks_t *file_link;
4082 bigendian = stdoutput->xvec->header_byteorder_big_p;
4084 aux_out = (union aux_ext *) (*buf + offset);
4088 /* The aux entries are stored by file. */
4089 for (file_link = file_desc.first;
4090 file_link != (vlinks_t *) NULL;
4091 file_link = file_link->next)
4097 if (file_link->next == (vlinks_t *) NULL)
4098 fil_cnt = file_desc.objects_last_page;
4100 fil_cnt = file_desc.objects_per_page;
4101 fil_ptr = file_link->datum->file;
4102 fil_end = fil_ptr + fil_cnt;
4103 for (; fil_ptr < fil_end; fil_ptr++)
4107 fil_ptr->fdr.fBigendian = bigendian;
4108 fil_ptr->fdr.iauxBase = iaux;
4109 for (aux_link = fil_ptr->aux_syms.first;
4110 aux_link != (vlinks_t *) NULL;
4111 aux_link = aux_link->next)
4117 if (aux_link->next == (vlinks_t *) NULL)
4118 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4120 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4121 aux_ptr = aux_link->datum->aux;
4122 aux_end = aux_ptr + aux_cnt;
4123 for (; aux_ptr < aux_end; aux_ptr++)
4125 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4126 aux_out = ((union aux_ext *)
4127 ecoff_add_bytes (buf, bufend,
4129 sizeof (union aux_ext)));
4130 switch (aux_ptr->type)
4133 ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
4137 ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
4141 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4145 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4149 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4153 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4157 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4161 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4170 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4174 return ecoff_padding_adjust (backend, buf, bufend,
4175 offset + iaux * sizeof (union aux_ext),
4179 /* Copy out the strings from a varray_t. This returns the number of
4180 bytes copied, rather than the new offset. */
4182 static unsigned long
4183 ecoff_build_strings (buf, bufend, offset, vp)
4186 unsigned long offset;
4193 str_out = *buf + offset;
4197 for (str_link = vp->first;
4198 str_link != (vlinks_t *) NULL;
4199 str_link = str_link->next)
4201 unsigned long str_cnt;
4203 if (str_link->next == (vlinks_t *) NULL)
4204 str_cnt = vp->objects_last_page;
4206 str_cnt = vp->objects_per_page;
4208 if (*bufend - str_out < str_cnt)
4209 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4211 memcpy (str_out, str_link->datum->byte, str_cnt);
4219 /* Dump out the local strings. */
4221 static unsigned long
4222 ecoff_build_ss (backend, buf, bufend, offset)
4223 const struct ecoff_debug_swap *backend;
4226 unsigned long offset;
4229 vlinks_t *file_link;
4233 for (file_link = file_desc.first;
4234 file_link != (vlinks_t *) NULL;
4235 file_link = file_link->next)
4241 if (file_link->next == (vlinks_t *) NULL)
4242 fil_cnt = file_desc.objects_last_page;
4244 fil_cnt = file_desc.objects_per_page;
4245 fil_ptr = file_link->datum->file;
4246 fil_end = fil_ptr + fil_cnt;
4247 for (; fil_ptr < fil_end; fil_ptr++)
4251 fil_ptr->fdr.issBase = iss;
4252 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4254 fil_ptr->fdr.cbSs = ss_cnt;
4259 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4263 /* Swap out the file descriptors. */
4265 static unsigned long
4266 ecoff_build_fdr (backend, buf, bufend, offset)
4267 const struct ecoff_debug_swap *backend;
4270 unsigned long offset;
4272 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4273 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4274 = backend->swap_fdr_out;
4277 vlinks_t *file_link;
4281 fdr_out = *buf + offset;
4283 for (file_link = file_desc.first;
4284 file_link != (vlinks_t *) NULL;
4285 file_link = file_link->next)
4291 if (file_link->next == (vlinks_t *) NULL)
4292 fil_cnt = file_desc.objects_last_page;
4294 fil_cnt = file_desc.objects_per_page;
4295 fil_ptr = file_link->datum->file;
4296 fil_end = fil_ptr + fil_cnt;
4297 for (; fil_ptr < fil_end; fil_ptr++)
4299 if (*bufend - fdr_out < external_fdr_size)
4300 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4302 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4303 fdr_out += external_fdr_size;
4308 return offset + ifile * external_fdr_size;
4311 /* Swap out the external symbols. These are the symbols that the
4312 machine independent code has put in the symtab for the BFD. */
4314 static unsigned long
4315 ecoff_build_ext (backend, buf, bufend, offset, ext_strings, ext_str_hash)
4316 const struct ecoff_debug_swap *backend;
4319 unsigned long offset;
4320 varray_t *ext_strings;
4321 struct hash_control *ext_str_hash;
4323 const bfd_size_type external_ext_size = backend->external_ext_size;
4324 void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR))
4325 = backend->swap_ext_out;
4326 register symbolS *sym;
4330 ext_out = *buf + offset;
4332 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4334 if (sym->ecoff_symbol == NULL)
4337 /* If this is a local symbol, then force the fields to zero. */
4338 if (! S_IS_EXTERNAL (sym)
4339 && S_IS_DEFINED (sym))
4341 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4342 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4343 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4344 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4347 sym->ecoff_symbol->ecoff_sym.asym.iss =
4348 add_string (ext_strings, ext_str_hash, S_GET_NAME (sym),
4350 if (*bufend - ext_out < external_ext_size)
4351 ext_out = ecoff_add_bytes (buf, bufend, ext_out, external_ext_size);
4352 (*swap_ext_out) (stdoutput, &sym->ecoff_symbol->ecoff_sym, ext_out);
4353 #ifdef obj_set_sym_index
4354 obj_set_sym_index (as_sym->bsym, iext);
4356 ext_out += external_ext_size;
4360 return offset + iext * external_ext_size;
4363 /* Build the ECOFF dbeugging information. */
4366 ecoff_build_debug (hdr, bufp, backend)
4369 const struct ecoff_debug_swap *backend;
4371 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4376 efdr_t *hold_file_ptr;
4377 proc_t * hold_proc_ptr;
4381 unsigned long offset;
4384 unsigned long extoffset;
4385 varray_t ext_strings;
4386 static varray_t init_ext_strings = INIT_VARRAY (char);
4387 struct hash_control *ext_str_hash;
4389 /* Make sure we have a file. */
4390 if (first_file == (efdr_t *) NULL)
4391 add_file ((const char *) NULL, 0);
4393 /* Handle any top level tags. */
4394 for (ptag = top_tag_head->first_tag;
4395 ptag != (tag_t *) NULL;
4398 if (ptag->forward_ref != (forward_t *) NULL)
4399 add_unknown_tag (ptag);
4401 ptag_next = ptag->same_block;
4402 ptag->hash_ptr->tag_ptr = ptag->same_name;
4406 free_thead (top_tag_head);
4408 /* Look through the symbols. Add debugging information for each
4409 symbol that has not already received it. */
4410 hold_file_ptr = cur_file_ptr;
4411 hold_proc_ptr = cur_proc_ptr;
4412 cur_proc_ptr = (proc_t *) NULL;
4413 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4415 if (sym->ecoff_symbol != NULL
4416 || sym->ecoff_file == (efdr_t *) NULL
4417 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4420 cur_file_ptr = sym->ecoff_file;
4421 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4422 S_GET_VALUE (sym), indexNil);
4424 cur_proc_ptr = hold_proc_ptr;
4425 cur_file_ptr = hold_file_ptr;
4427 /* Output an ending symbol for all the files. We have to do this
4428 here for the last file, so we may as well do it for all of the
4431 for (fil_ptr = first_file;
4432 fil_ptr != (efdr_t *) NULL;
4433 fil_ptr = fil_ptr->next_file)
4435 cur_file_ptr = fil_ptr;
4436 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4438 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4441 as_warn ("Missing .end or .bend at end of file");
4445 (void) add_ecoff_symbol ((const char *) NULL,
4452 /* Build the symbolic information. */
4454 buf = xmalloc (PAGE_SIZE);
4455 bufend = buf + PAGE_SIZE;
4457 /* Build the line number information. */
4458 hdr->cbLineOffset = offset;
4459 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4461 hdr->cbLine = offset - hdr->cbLineOffset;
4463 /* We don't use dense numbers at all. */
4465 hdr->cbDnOffset = 0;
4467 /* We can't build the PDR table until we have built the symbols,
4468 because a PDR contains a symbol index. However, we set aside
4469 space at this point. */
4470 hdr->ipdMax = proc_cnt;
4471 hdr->cbPdOffset = offset;
4472 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4473 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4474 proc_cnt * external_pdr_size);
4475 offset += proc_cnt * external_pdr_size;
4477 /* Build the local symbols. */
4478 hdr->cbSymOffset = offset;
4479 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4480 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4482 /* Building the symbols initializes the symbol index in the PDR's.
4483 Now we can swap out the PDR's. */
4484 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4486 /* We don't use optimization symbols. */
4488 hdr->cbOptOffset = 0;
4490 /* Swap out the auxiliary type information. */
4491 hdr->cbAuxOffset = offset;
4492 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4493 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4495 /* Copy out the local strings. */
4496 hdr->cbSsOffset = offset;
4497 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4498 hdr->issMax = offset - hdr->cbSsOffset;
4500 /* Build the external symbols and external strings. We build these
4501 now because we want to copy out the external strings now. We
4502 copy out the external symbol information down below. */
4503 extbuf = xmalloc (PAGE_SIZE);
4504 extbufend = extbuf + PAGE_SIZE;
4505 ext_strings = init_ext_strings;
4506 ext_str_hash = hash_new ();
4507 extoffset = ecoff_build_ext (backend, &extbuf, &extbufend,
4508 (unsigned long) 0, &ext_strings,
4511 /* Copy out the external strings. */
4512 hdr->cbSsExtOffset = offset;
4513 offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
4514 offset = ecoff_padding_adjust (backend, &buf, &bufend, offset,
4516 hdr->issExtMax = offset - hdr->cbSsExtOffset;
4518 /* We don't use relative file descriptors. */
4520 hdr->cbRfdOffset = 0;
4522 /* Swap out the file descriptors. */
4523 hdr->cbFdOffset = offset;
4524 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4525 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4527 /* Copy out the external symbols. */
4528 hdr->cbExtOffset = offset;
4529 if (bufend - (buf + offset) < extoffset)
4530 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
4531 memcpy (buf + offset, extbuf, extoffset);
4532 offset += extoffset;
4533 hdr->iextMax = (offset - hdr->cbExtOffset) / backend->external_ext_size;
4535 know ((offset & (backend->debug_align - 1)) == 0);
4537 hdr->magic = backend->sym_magic;
4538 /* FIXME: what should hdr->vstamp be? */
4539 hdr->vstamp = 0x020b;
4545 /* Allocate a cluster of pages. */
4547 #ifndef MALLOC_CHECK
4550 allocate_cluster (npages)
4551 unsigned long npages;
4553 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4557 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4560 memset (value, 0, npages * PAGE_USIZE);
4566 static page_t *cluster_ptr = NULL;
4567 static unsigned long pages_left = 0;
4569 #endif /* MALLOC_CHECK */
4571 /* Allocate one page (which is initialized to 0). */
4576 #ifndef MALLOC_CHECK
4578 if (pages_left == 0)
4580 pages_left = MAX_CLUSTER_PAGES;
4581 cluster_ptr = allocate_cluster (pages_left);
4585 return cluster_ptr++;
4587 #else /* MALLOC_CHECK */
4591 ptr = xmalloc (PAGE_USIZE);
4592 memset (ptr, 0, PAGE_USIZE);
4595 #endif /* MALLOC_CHECK */
4598 /* Allocate scoping information. */
4603 register scope_t *ptr;
4604 static scope_t initial_scope;
4606 #ifndef MALLOC_CHECK
4608 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4609 if (ptr != (scope_t *) NULL)
4610 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4613 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4614 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4616 if (unallocated == 0)
4618 unallocated = PAGE_SIZE / sizeof (scope_t);
4619 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4620 alloc_counts[(int)alloc_type_scope].total_pages++;
4623 ptr = &cur_page->scope[--unallocated];
4624 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4629 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4633 alloc_counts[(int)alloc_type_scope].total_alloc++;
4634 *ptr = initial_scope;
4638 /* Free scoping information. */
4644 alloc_counts[(int)alloc_type_scope].total_free++;
4646 #ifndef MALLOC_CHECK
4647 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4648 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4654 /* Allocate links for pages in a virtual array. */
4659 register vlinks_t *ptr;
4660 static vlinks_t initial_vlinks;
4662 #ifndef MALLOC_CHECK
4664 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4665 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4667 if (unallocated == 0)
4669 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4670 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4671 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4674 ptr = &cur_page->vlinks[--unallocated];
4675 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4679 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4683 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4684 *ptr = initial_vlinks;
4688 /* Allocate string hash buckets. */
4693 register shash_t *ptr;
4694 static shash_t initial_shash;
4696 #ifndef MALLOC_CHECK
4698 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4699 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4701 if (unallocated == 0)
4703 unallocated = PAGE_SIZE / sizeof (shash_t);
4704 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4705 alloc_counts[(int)alloc_type_shash].total_pages++;
4708 ptr = &cur_page->shash[--unallocated];
4709 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4713 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4717 alloc_counts[(int)alloc_type_shash].total_alloc++;
4718 *ptr = initial_shash;
4722 /* Allocate type hash buckets. */
4727 register thash_t *ptr;
4728 static thash_t initial_thash;
4730 #ifndef MALLOC_CHECK
4732 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4733 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4735 if (unallocated == 0)
4737 unallocated = PAGE_SIZE / sizeof (thash_t);
4738 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4739 alloc_counts[(int)alloc_type_thash].total_pages++;
4742 ptr = &cur_page->thash[--unallocated];
4743 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4747 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4751 alloc_counts[(int)alloc_type_thash].total_alloc++;
4752 *ptr = initial_thash;
4756 /* Allocate structure, union, or enum tag information. */
4761 register tag_t *ptr;
4762 static tag_t initial_tag;
4764 #ifndef MALLOC_CHECK
4766 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4767 if (ptr != (tag_t *) NULL)
4768 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4771 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4772 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4774 if (unallocated == 0)
4776 unallocated = PAGE_SIZE / sizeof (tag_t);
4777 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4778 alloc_counts[(int)alloc_type_tag].total_pages++;
4781 ptr = &cur_page->tag[--unallocated];
4782 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4787 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4791 alloc_counts[(int)alloc_type_tag].total_alloc++;
4796 /* Free scoping information. */
4802 alloc_counts[(int)alloc_type_tag].total_free++;
4804 #ifndef MALLOC_CHECK
4805 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4806 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4812 /* Allocate forward reference to a yet unknown tag. */
4817 register forward_t *ptr;
4818 static forward_t initial_forward;
4820 #ifndef MALLOC_CHECK
4822 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4823 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4825 if (unallocated == 0)
4827 unallocated = PAGE_SIZE / sizeof (forward_t);
4828 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4829 alloc_counts[(int)alloc_type_forward].total_pages++;
4832 ptr = &cur_page->forward[--unallocated];
4833 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4837 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4841 alloc_counts[(int)alloc_type_forward].total_alloc++;
4842 *ptr = initial_forward;
4846 /* Allocate head of type hash list. */
4851 register thead_t *ptr;
4852 static thead_t initial_thead;
4854 #ifndef MALLOC_CHECK
4856 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4857 if (ptr != (thead_t *) NULL)
4858 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4861 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4862 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4864 if (unallocated == 0)
4866 unallocated = PAGE_SIZE / sizeof (thead_t);
4867 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4868 alloc_counts[(int)alloc_type_thead].total_pages++;
4871 ptr = &cur_page->thead[--unallocated];
4872 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4877 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4881 alloc_counts[(int)alloc_type_thead].total_alloc++;
4882 *ptr = initial_thead;
4886 /* Free scoping information. */
4892 alloc_counts[(int)alloc_type_thead].total_free++;
4894 #ifndef MALLOC_CHECK
4895 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4896 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4902 static lineno_list_t *
4903 allocate_lineno_list ()
4905 register lineno_list_t *ptr;
4906 static lineno_list_t initial_lineno_list;
4908 #ifndef MALLOC_CHECK
4910 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4911 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4913 if (unallocated == 0)
4915 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4916 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4917 alloc_counts[(int)alloc_type_lineno].total_pages++;
4920 ptr = &cur_page->lineno[--unallocated];
4921 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
4925 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
4929 alloc_counts[(int)alloc_type_lineno].total_alloc++;
4930 *ptr = initial_lineno_list;
4934 #endif /* ECOFF_DEBUGGING */