1 /* ECOFF debugging support.
2 Copyright (C) 1993 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
5 good deal of it comes directly from mips-tfile.c, by Michael
6 Meissner <meissner@osf.org>.
8 This file is part of GAS.
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to
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 */
1404 static int current_file_idx;
1406 /* Pseudo symbol to use when putting stabs into the symbol table. */
1407 #ifndef STABS_SYMBOL
1408 #define STABS_SYMBOL "@stabs"
1411 static char stabs_symbol[] = STABS_SYMBOL;
1413 /* Prototypes for functions defined in this file. */
1415 static void add_varray_page PARAMS ((varray_t *vp));
1416 static symint_t add_string PARAMS ((varray_t *vp,
1417 struct hash_control *hash_tbl,
1419 shash_t **ret_hash));
1420 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1421 sc_t storage, symbolS *sym,
1424 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1425 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1426 symint_t sym_index));
1427 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1429 thash_t **hash_tbl));
1430 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1432 static void add_unknown_tag PARAMS ((tag_t *ptag));
1433 static void add_procedure PARAMS ((char *func));
1434 static void add_file PARAMS ((const char *file_name, int indx));
1436 static char *sc_to_string PARAMS ((sc_t storage_class));
1437 static char *st_to_string PARAMS ((st_t symbol_type));
1439 static void mark_stabs PARAMS ((int));
1440 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1441 char *bufptr, unsigned long need));
1442 static unsigned long ecoff_padding_adjust
1443 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1444 unsigned long offset, char **bufptrptr));
1445 static unsigned long ecoff_build_lineno
1446 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1447 unsigned long offset, long *linecntptr));
1448 static unsigned long ecoff_build_symbols
1449 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1450 unsigned long offset));
1451 static unsigned long ecoff_build_procs
1452 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1453 unsigned long offset));
1454 static unsigned long ecoff_build_aux
1455 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1456 unsigned long offset));
1457 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1458 unsigned long offset,
1460 static unsigned long ecoff_build_ss
1461 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1462 unsigned long offset));
1463 static unsigned long ecoff_build_fdr
1464 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1465 unsigned long offset));
1466 static void ecoff_setup_ext PARAMS ((void));
1467 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1468 static page_t *allocate_page PARAMS ((void));
1469 static scope_t *allocate_scope PARAMS ((void));
1470 static void free_scope PARAMS ((scope_t *ptr));
1471 static vlinks_t *allocate_vlinks PARAMS ((void));
1472 static shash_t *allocate_shash PARAMS ((void));
1473 static thash_t *allocate_thash PARAMS ((void));
1474 static tag_t *allocate_tag PARAMS ((void));
1475 static void free_tag PARAMS ((tag_t *ptr));
1476 static forward_t *allocate_forward PARAMS ((void));
1477 static thead_t *allocate_thead PARAMS ((void));
1478 static void free_thead PARAMS ((thead_t *ptr));
1479 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1481 /* This function should be called when the assembler starts up. */
1484 ecoff_read_begin_hook ()
1486 tag_hash = hash_new ();
1487 top_tag_head = allocate_thead ();
1488 top_tag_head->first_tag = (tag_t *) NULL;
1489 top_tag_head->free = (thead_t *) NULL;
1490 top_tag_head->prev = cur_tag_head;
1491 cur_tag_head = top_tag_head;
1494 /* This function should be called when a symbol is created. */
1497 ecoff_symbol_new_hook (symbolP)
1500 if (cur_file_ptr == (efdr_t *) NULL)
1501 add_file ((const char *) NULL, 0);
1502 symbolP->ecoff_file = cur_file_ptr;
1503 symbolP->ecoff_symbol = NULL;
1504 symbolP->ecoff_undefined = 0;
1507 /* Add a page to a varray object. */
1510 add_varray_page (vp)
1511 varray_t *vp; /* varray to add page to */
1513 vlinks_t *new_links = allocate_vlinks ();
1516 if (vp->object_size > 1)
1517 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1520 new_links->datum = allocate_page ();
1522 alloc_counts[(int)alloc_type_varray].total_alloc++;
1523 alloc_counts[(int)alloc_type_varray].total_pages++;
1525 new_links->start_index = vp->num_allocated;
1526 vp->objects_last_page = 0;
1528 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1529 vp->first = vp->last = new_links;
1531 { /* 2nd or greater allocation */
1532 new_links->prev = vp->last;
1533 vp->last->next = new_links;
1534 vp->last = new_links;
1538 /* Add a string (and null pad) to one of the string tables. */
1541 add_string (vp, hash_tbl, str, ret_hash)
1542 varray_t *vp; /* string obstack */
1543 struct hash_control *hash_tbl; /* ptr to hash table */
1544 const char *str; /* string */
1545 shash_t **ret_hash; /* return hash pointer */
1547 register unsigned long len = strlen (str);
1548 register shash_t *hash_ptr;
1550 if (len >= PAGE_USIZE)
1551 as_fatal ("String too big (%lu bytes)", len);
1553 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1554 if (hash_ptr == (shash_t *) NULL)
1556 register const char *err;
1558 if (vp->objects_last_page + len >= PAGE_USIZE)
1561 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1562 add_varray_page (vp);
1565 hash_ptr = allocate_shash ();
1566 hash_ptr->indx = vp->num_allocated;
1568 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1570 vp->objects_last_page += len + 1;
1571 vp->num_allocated += len + 1;
1573 strcpy (hash_ptr->string, str);
1575 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1577 as_fatal ("Inserting \"%s\" into string hash table: %s",
1581 if (ret_hash != (shash_t **) NULL)
1582 *ret_hash = hash_ptr;
1584 return hash_ptr->indx;
1587 /* Add debugging information for a symbol. */
1590 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1591 const char *str; /* symbol name */
1592 st_t type; /* symbol type */
1593 sc_t storage; /* storage class */
1594 symbolS *sym_value; /* associated symbol. */
1595 symint_t value; /* value of symbol */
1596 symint_t indx; /* index to local/aux. syms */
1599 register scope_t *pscope;
1600 register thead_t *ptag_head;
1601 register tag_t *ptag;
1602 register tag_t *ptag_next;
1603 register varray_t *vp;
1604 register int scope_delta = 0;
1605 shash_t *hash_ptr = (shash_t *) NULL;
1607 if (cur_file_ptr == (efdr_t *) NULL)
1608 as_fatal ("no current file pointer");
1610 vp = &cur_file_ptr->symbols;
1612 if (vp->objects_last_page == vp->objects_per_page)
1613 add_varray_page (vp);
1615 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1617 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1618 psym->name = S_GET_NAME (sym_value);
1621 psym->as_sym = sym_value;
1622 if (sym_value != (symbolS *) NULL)
1623 sym_value->ecoff_symbol = psym;
1624 psym->file_ptr = cur_file_ptr;
1625 psym->proc_ptr = cur_proc_ptr;
1626 psym->begin_ptr = (localsym_t *) NULL;
1627 psym->index_ptr = (aux_t *) NULL;
1628 psym->forward_ref = (forward_t *) NULL;
1629 psym->sym_index = -1;
1630 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1631 psym->ecoff_sym.asym.value = value;
1632 psym->ecoff_sym.asym.st = (unsigned) type;
1633 psym->ecoff_sym.asym.sc = (unsigned) storage;
1634 psym->ecoff_sym.asym.index = indx;
1636 /* If there is an associated symbol, we wait until the end of the
1637 assembly before deciding where to put the name (it may be just an
1638 external symbol). Otherwise, this is just a debugging symbol and
1639 the name should go with the current file. */
1640 if (sym_value == (symbolS *) NULL)
1641 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1643 : add_string (&cur_file_ptr->strings,
1644 cur_file_ptr->str_hash,
1648 ++vp->num_allocated;
1650 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1653 /* Save the symbol within the hash table if this is a static
1654 item, and it has a name. */
1655 if (hash_ptr != (shash_t *) NULL
1656 && (type == st_Global || type == st_Static || type == st_Label
1657 || type == st_Proc || type == st_StaticProc))
1658 hash_ptr->sym_ptr = psym;
1660 /* push or pop a scope if appropriate. */
1666 case st_File: /* beginning of file */
1667 case st_Proc: /* procedure */
1668 case st_StaticProc: /* static procedure */
1669 case st_Block: /* begin scope */
1670 pscope = allocate_scope ();
1671 pscope->prev = cur_file_ptr->cur_scope;
1672 pscope->lsym = psym;
1673 pscope->type = type;
1674 cur_file_ptr->cur_scope = pscope;
1676 if (type != st_File)
1679 /* For every block type except file, struct, union, or
1680 enumeration blocks, push a level on the tag stack. We omit
1681 file types, so that tags can span file boundaries. */
1682 if (type != st_File && storage != sc_Info)
1684 ptag_head = allocate_thead ();
1685 ptag_head->first_tag = 0;
1686 ptag_head->prev = cur_tag_head;
1687 cur_tag_head = ptag_head;
1692 pscope = cur_file_ptr->cur_scope;
1693 if (pscope == (scope_t *) NULL)
1694 as_fatal ("too many st_End's");
1697 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1699 psym->begin_ptr = pscope->lsym;
1701 if (begin_type != st_File)
1704 /* Except for file, structure, union, or enumeration end
1705 blocks remove all tags created within this scope. */
1706 if (begin_type != st_File && storage != sc_Info)
1708 ptag_head = cur_tag_head;
1709 cur_tag_head = ptag_head->prev;
1711 for (ptag = ptag_head->first_tag;
1712 ptag != (tag_t *) NULL;
1715 if (ptag->forward_ref != (forward_t *) NULL)
1716 add_unknown_tag (ptag);
1718 ptag_next = ptag->same_block;
1719 ptag->hash_ptr->tag_ptr = ptag->same_name;
1723 free_thead (ptag_head);
1726 cur_file_ptr->cur_scope = pscope->prev;
1728 /* block begin gets next sym #. This is set when we know
1729 the symbol index value. */
1731 /* Functions push two or more aux words as follows:
1732 1st word: index+1 of the end symbol (filled in later).
1733 2nd word: type of the function (plus any aux words needed).
1734 Also, tie the external pointer back to the function begin symbol. */
1735 if (begin_type != st_File && begin_type != st_Block)
1738 varray_t *svp = &cur_file_ptr->aux_syms;
1740 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1741 pscope->lsym->index_ptr =
1742 &svp->last->datum->aux[svp->objects_last_page - 1];
1743 ty = add_aux_sym_tir (&last_func_type_info,
1745 &cur_file_ptr->thash_head[0]);
1747 /* This seems to be unnecessary. I'm not even sure what it is
1748 * intended to do. It's from mips-tfile.
1749 * if (last_func_sym_value != (symbolS *) NULL)
1751 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1752 * last_func_sym_value->index = ty;
1757 free_scope (pscope);
1761 cur_file_ptr->nested_scopes += scope_delta;
1764 if (debug && type != st_File
1765 && (debug > 2 || type == st_Block || type == st_End
1766 || type == st_Proc || type == st_StaticProc))
1768 char *sc_str = sc_to_string (storage);
1769 char *st_str = st_to_string (type);
1770 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1773 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1774 value, depth, sc_str);
1776 if (str_start && str_end_p1 - str_start > 0)
1777 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1780 unsigned long len = strlen (st_str);
1781 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1789 /* Add an auxiliary symbol (passing a symint). This is actually used
1790 for integral aux types, not just symints. */
1793 add_aux_sym_symint (aux_word)
1794 symint_t aux_word; /* auxiliary information word */
1796 register varray_t *vp;
1797 register aux_t *aux_ptr;
1799 if (cur_file_ptr == (efdr_t *) NULL)
1800 as_fatal ("no current file pointer");
1802 vp = &cur_file_ptr->aux_syms;
1804 if (vp->objects_last_page == vp->objects_per_page)
1805 add_varray_page (vp);
1807 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1808 aux_ptr->type = aux_isym;
1809 aux_ptr->data.isym = aux_word;
1811 return vp->num_allocated++;
1815 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1818 add_aux_sym_rndx (file_index, sym_index)
1822 register varray_t *vp;
1823 register aux_t *aux_ptr;
1825 if (cur_file_ptr == (efdr_t *) NULL)
1826 as_fatal ("no current file pointer");
1828 vp = &cur_file_ptr->aux_syms;
1830 if (vp->objects_last_page == vp->objects_per_page)
1831 add_varray_page (vp);
1833 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1834 aux_ptr->type = aux_rndx;
1835 aux_ptr->data.rndx.rfd = file_index;
1836 aux_ptr->data.rndx.index = sym_index;
1838 return vp->num_allocated++;
1841 /* Add an auxiliary symbol (passing the basic type and possibly
1842 type qualifiers). */
1845 add_aux_sym_tir (t, state, hash_tbl)
1846 type_info_t *t; /* current type information */
1847 hash_state_t state; /* whether to hash type or not */
1848 thash_t **hash_tbl; /* pointer to hash table to use */
1850 register varray_t *vp;
1851 register aux_t *aux_ptr;
1852 static AUXU init_aux;
1857 if (cur_file_ptr == (efdr_t *) NULL)
1858 as_fatal ("no current file pointer");
1860 vp = &cur_file_ptr->aux_syms;
1863 aux.ti.bt = (int) t->basic_type;
1864 aux.ti.continued = 0;
1865 aux.ti.fBitfield = t->bitfield;
1867 aux.ti.tq0 = (int) t->type_qualifiers[0];
1868 aux.ti.tq1 = (int) t->type_qualifiers[1];
1869 aux.ti.tq2 = (int) t->type_qualifiers[2];
1870 aux.ti.tq3 = (int) t->type_qualifiers[3];
1871 aux.ti.tq4 = (int) t->type_qualifiers[4];
1872 aux.ti.tq5 = (int) t->type_qualifiers[5];
1875 /* For anything that adds additional information, we must not hash,
1876 so check here, and reset our state. */
1878 if (state != hash_no
1879 && (t->type_qualifiers[0] == tq_Array
1880 || t->type_qualifiers[1] == tq_Array
1881 || t->type_qualifiers[2] == tq_Array
1882 || t->type_qualifiers[3] == tq_Array
1883 || t->type_qualifiers[4] == tq_Array
1884 || t->type_qualifiers[5] == tq_Array
1885 || t->basic_type == bt_Struct
1886 || t->basic_type == bt_Union
1887 || t->basic_type == bt_Enum
1889 || t->num_dims > 0))
1892 /* See if we can hash this type, and save some space, but some types
1893 can't be hashed (because they contain arrays or continuations),
1894 and others can be put into the hash list, but cannot use existing
1895 types because other aux entries precede this one. */
1897 if (state != hash_no)
1899 register thash_t *hash_ptr;
1900 register symint_t hi;
1902 hi = aux.isym & ((1 << HASHBITS) - 1);
1905 for (hash_ptr = hash_tbl[hi];
1906 hash_ptr != (thash_t *)0;
1907 hash_ptr = hash_ptr->next)
1909 if (aux.isym == hash_ptr->type.isym)
1913 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1914 return hash_ptr->indx;
1916 if (hash_ptr == (thash_t *) NULL)
1918 hash_ptr = allocate_thash ();
1919 hash_ptr->next = hash_tbl[hi];
1920 hash_ptr->type = aux;
1921 hash_ptr->indx = vp->num_allocated;
1922 hash_tbl[hi] = hash_ptr;
1926 /* Everything is set up, add the aux symbol. */
1927 if (vp->objects_last_page == vp->objects_per_page)
1928 add_varray_page (vp);
1930 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1931 aux_ptr->type = aux_tir;
1932 aux_ptr->data = aux;
1934 ret = vp->num_allocated++;
1936 /* Add bitfield length if it exists.
1938 NOTE: Mips documentation claims bitfield goes at the end of the
1939 AUX record, but the DECstation compiler emits it here.
1940 (This would only make a difference for enum bitfields.)
1942 Also note: We use the last size given since gcc may emit 2
1943 for an enum bitfield. */
1946 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1949 /* Add tag information if needed. Structure, union, and enum
1950 references add 2 aux symbols: a [file index, symbol index]
1951 pointer to the structure type, and the current file index. */
1953 if (t->basic_type == bt_Struct
1954 || t->basic_type == bt_Union
1955 || t->basic_type == bt_Enum)
1957 register symint_t file_index = t->tag_ptr->ifd;
1958 register localsym_t *sym = t->tag_ptr->sym;
1959 register forward_t *forward_ref = allocate_forward ();
1961 if (sym != (localsym_t *) NULL)
1963 forward_ref->next = sym->forward_ref;
1964 sym->forward_ref = forward_ref;
1968 forward_ref->next = t->tag_ptr->forward_ref;
1969 t->tag_ptr->forward_ref = forward_ref;
1972 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1973 forward_ref->index_ptr
1974 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1976 (void) add_aux_sym_symint (file_index);
1977 forward_ref->ifd_ptr
1978 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1981 /* Add information about array bounds if they exist. */
1982 for (i = 0; i < t->num_dims; i++)
1984 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1985 cur_file_ptr->int_type);
1987 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1988 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1989 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1990 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1992 : (t->sizes[i] * 8) / t->dimensions[i]);
1995 /* NOTE: Mips documentation claims that the bitfield width goes here.
1996 But it needs to be emitted earlier. */
2001 /* Add a tag to the tag table (unless it already exists). */
2004 get_tag (tag, sym, basic_type)
2005 const char *tag; /* tag name */
2006 localsym_t *sym; /* tag start block */
2007 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2013 if (cur_file_ptr == (efdr_t *) NULL)
2014 as_fatal ("no current file pointer");
2016 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2018 if (hash_ptr != (shash_t *) NULL
2019 && hash_ptr->tag_ptr != (tag_t *) NULL)
2021 tag_ptr = hash_ptr->tag_ptr;
2022 if (sym != (localsym_t *) NULL)
2024 tag_ptr->basic_type = basic_type;
2025 tag_ptr->ifd = cur_file_ptr->file_index;
2031 if (hash_ptr == (shash_t *) NULL)
2035 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2037 hash_ptr = allocate_shash ();
2038 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2040 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2042 hash_ptr->string = perm;
2045 tag_ptr = allocate_tag ();
2046 tag_ptr->forward_ref = (forward_t *) NULL;
2047 tag_ptr->hash_ptr = hash_ptr;
2048 tag_ptr->same_name = hash_ptr->tag_ptr;
2049 tag_ptr->basic_type = basic_type;
2051 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2053 : cur_file_ptr->file_index);
2054 tag_ptr->same_block = cur_tag_head->first_tag;
2056 cur_tag_head->first_tag = tag_ptr;
2057 hash_ptr->tag_ptr = tag_ptr;
2062 /* Add an unknown {struct, union, enum} tag. */
2065 add_unknown_tag (ptag)
2066 tag_t *ptag; /* pointer to tag information */
2068 shash_t *hash_ptr = ptag->hash_ptr;
2069 char *name = hash_ptr->string;
2076 char *agg_type = "{unknown aggregate type}";
2077 switch (ptag->basic_type)
2079 case bt_Struct: agg_type = "struct"; break;
2080 case bt_Union: agg_type = "union"; break;
2081 case bt_Enum: agg_type = "enum"; break;
2085 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2086 hash_ptr->len, name_start);
2090 sym = add_ecoff_symbol (name,
2097 (void) add_ecoff_symbol (name,
2104 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2106 *pf = ptag->forward_ref;
2109 /* Add a procedure to the current file's list of procedures, and record
2110 this is the current procedure. */
2113 add_procedure (func)
2114 char *func; /* func name */
2116 register varray_t *vp;
2117 register proc_t *new_proc_ptr;
2121 fputc ('\n', stderr);
2124 if (cur_file_ptr == (efdr_t *) NULL)
2125 as_fatal ("no current file pointer");
2127 vp = &cur_file_ptr->procs;
2129 if (vp->objects_last_page == vp->objects_per_page)
2130 add_varray_page (vp);
2132 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2134 vp->num_allocated++;
2136 new_proc_ptr->pdr.isym = -1;
2137 new_proc_ptr->pdr.iline = -1;
2138 new_proc_ptr->pdr.lnLow = -1;
2139 new_proc_ptr->pdr.lnHigh = -1;
2141 /* Push the start of the function. */
2142 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2143 symbol_find_or_make (func),
2144 (symint_t) 0, (symint_t) 0);
2148 /* Fill in the linenos preceding the .ent, if any. */
2149 if (noproc_lineno != (lineno_list_t *) NULL)
2153 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2154 l->proc = new_proc_ptr;
2155 *last_lineno_ptr = noproc_lineno;
2156 while (*last_lineno_ptr != NULL)
2157 last_lineno_ptr = &(*last_lineno_ptr)->next;
2158 noproc_lineno = (lineno_list_t *) NULL;
2162 /* Add a new filename, and set up all of the file relative
2163 virtual arrays (strings, symbols, aux syms, etc.). Record
2164 where the current file structure lives. */
2167 add_file (file_name, indx)
2168 const char *file_name; /* file name */
2171 register int first_ch;
2172 register efdr_t *fil_ptr;
2176 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2179 /* If the file name is NULL, then no .file symbol appeared, and we
2180 want to use the actual file name. */
2181 if (file_name == (const char *) NULL)
2185 if (first_file != (efdr_t *) NULL)
2186 as_fatal ("fake .file after real one");
2187 as_where (&file, (unsigned int *) NULL);
2188 file_name = (const char *) file;
2193 listing_source_file (file_name);
2196 /* If we're creating stabs, then we don't actually make a new FDR.
2197 Instead, we just create a stabs symbol. */
2200 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2201 symbol_new ("L0\001", now_seg,
2202 (valueT) frag_now_fix (),
2204 0, ECOFF_MARK_STAB (N_SOL));
2208 first_ch = *file_name;
2210 /* See if the file has already been created. */
2211 for (fil_ptr = first_file;
2212 fil_ptr != (efdr_t *) NULL;
2213 fil_ptr = fil_ptr->next_file)
2215 if (first_ch == fil_ptr->name[0]
2216 && strcmp (file_name, fil_ptr->name) == 0)
2218 cur_file_ptr = fil_ptr;
2223 /* If this is a new file, create it. */
2224 if (fil_ptr == (efdr_t *) NULL)
2226 if (file_desc.objects_last_page == file_desc.objects_per_page)
2227 add_varray_page (&file_desc);
2229 fil_ptr = cur_file_ptr =
2230 &file_desc.last->datum->file[file_desc.objects_last_page++];
2231 *fil_ptr = init_file;
2233 fil_ptr->file_index = current_file_idx++;
2234 ++file_desc.num_allocated;
2236 /* Allocate the string hash table. */
2237 fil_ptr->str_hash = hash_new ();
2239 /* Make sure 0 byte in string table is null */
2240 add_string (&fil_ptr->strings,
2245 if (strlen (file_name) > PAGE_USIZE - 2)
2246 as_fatal ("Filename goes over one page boundary.");
2248 /* Push the start of the filename. We assume that the filename
2249 will be stored at string offset 1. */
2250 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2252 (symint_t) 0, (symint_t) 0);
2253 fil_ptr->fdr.rss = 1;
2254 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2256 /* Update the linked list of file descriptors. */
2257 *last_file_ptr = fil_ptr;
2258 last_file_ptr = &fil_ptr->next_file;
2260 /* Add void & int types to the file (void should be first to catch
2261 errant 0's within the index fields). */
2262 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2264 &cur_file_ptr->thash_head[0]);
2266 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2268 &cur_file_ptr->thash_head[0]);
2274 /* Convert storage class to string. */
2277 sc_to_string(storage_class)
2280 switch(storage_class)
2282 case sc_Nil: return "Nil,";
2283 case sc_Text: return "Text,";
2284 case sc_Data: return "Data,";
2285 case sc_Bss: return "Bss,";
2286 case sc_Register: return "Register,";
2287 case sc_Abs: return "Abs,";
2288 case sc_Undefined: return "Undefined,";
2289 case sc_CdbLocal: return "CdbLocal,";
2290 case sc_Bits: return "Bits,";
2291 case sc_CdbSystem: return "CdbSystem,";
2292 case sc_RegImage: return "RegImage,";
2293 case sc_Info: return "Info,";
2294 case sc_UserStruct: return "UserStruct,";
2295 case sc_SData: return "SData,";
2296 case sc_SBss: return "SBss,";
2297 case sc_RData: return "RData,";
2298 case sc_Var: return "Var,";
2299 case sc_Common: return "Common,";
2300 case sc_SCommon: return "SCommon,";
2301 case sc_VarRegister: return "VarRegister,";
2302 case sc_Variant: return "Variant,";
2303 case sc_SUndefined: return "SUndefined,";
2304 case sc_Init: return "Init,";
2305 case sc_Max: return "Max,";
2315 /* Convert symbol type to string. */
2318 st_to_string(symbol_type)
2323 case st_Nil: return "Nil,";
2324 case st_Global: return "Global,";
2325 case st_Static: return "Static,";
2326 case st_Param: return "Param,";
2327 case st_Local: return "Local,";
2328 case st_Label: return "Label,";
2329 case st_Proc: return "Proc,";
2330 case st_Block: return "Block,";
2331 case st_End: return "End,";
2332 case st_Member: return "Member,";
2333 case st_Typedef: return "Typedef,";
2334 case st_File: return "File,";
2335 case st_RegReloc: return "RegReloc,";
2336 case st_Forward: return "Forward,";
2337 case st_StaticProc: return "StaticProc,";
2338 case st_Constant: return "Constant,";
2339 case st_Str: return "String,";
2340 case st_Number: return "Number,";
2341 case st_Expr: return "Expr,";
2342 case st_Type: return "Type,";
2343 case st_Max: return "Max,";
2351 /* Parse .begin directives which have a label as the first argument
2352 which gives the location of the start of the block. */
2355 ecoff_directive_begin (ignore)
2361 if (cur_file_ptr == (efdr_t *) NULL)
2363 as_warn (".begin directive without a preceding .file directive");
2364 demand_empty_rest_of_line ();
2368 if (cur_proc_ptr == (proc_t *) NULL)
2370 as_warn (".begin directive without a preceding .ent directive");
2371 demand_empty_rest_of_line ();
2375 name = input_line_pointer;
2376 name_end = get_symbol_end ();
2378 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2379 symbol_find_or_make (name),
2380 (symint_t) 0, (symint_t) 0);
2382 *input_line_pointer = name_end;
2384 /* The line number follows, but we don't use it. */
2385 (void) get_absolute_expression ();
2386 demand_empty_rest_of_line ();
2389 /* Parse .bend directives which have a label as the first argument
2390 which gives the location of the end of the block. */
2393 ecoff_directive_bend (ignore)
2400 if (cur_file_ptr == (efdr_t *) NULL)
2402 as_warn (".bend directive without a preceding .file directive");
2403 demand_empty_rest_of_line ();
2407 if (cur_proc_ptr == (proc_t *) NULL)
2409 as_warn (".bend directive without a preceding .ent directive");
2410 demand_empty_rest_of_line ();
2414 name = input_line_pointer;
2415 name_end = get_symbol_end ();
2417 /* The value is the distance between the .bend directive and the
2418 corresponding symbol. We fill in the offset when we write out
2420 endsym = symbol_find (name);
2421 if (endsym == (symbolS *) NULL)
2422 as_warn (".bend directive names unknown symbol");
2424 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2425 (symint_t) 0, (symint_t) 0);
2427 *input_line_pointer = name_end;
2429 /* The line number follows, but we don't use it. */
2430 (void) get_absolute_expression ();
2431 demand_empty_rest_of_line ();
2434 /* COFF debugging information is provided as a series of directives
2435 (.def, .scl, etc.). We build up information as we read the
2436 directives in the following static variables, and file it away when
2437 we reach the .endef directive. */
2438 static char *coff_sym_name;
2439 static type_info_t coff_type;
2440 static sc_t coff_storage_class;
2441 static st_t coff_symbol_typ;
2442 static int coff_is_function;
2443 static char *coff_tag;
2444 static valueT coff_value;
2445 symbolS *coff_sym_value;
2446 static int coff_inside_enumeration;
2448 /* Handle a .def directive: start defining a symbol. */
2451 ecoff_directive_def (ignore)
2459 name = input_line_pointer;
2460 name_end = get_symbol_end ();
2462 if (coff_sym_name != (char *) NULL)
2463 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2464 else if (*name == '\0')
2465 as_warn ("Empty symbol name in .def; ignored");
2468 if (coff_sym_name != (char *) NULL)
2469 free (coff_sym_name);
2470 if (coff_tag != (char *) NULL)
2472 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2473 strcpy (coff_sym_name, name);
2474 coff_type = type_info_init;
2475 coff_storage_class = sc_Nil;
2476 coff_symbol_typ = st_Nil;
2477 coff_is_function = 0;
2478 coff_tag = (char *) NULL;
2480 coff_sym_value = (symbolS *) NULL;
2483 *input_line_pointer = name_end;
2485 demand_empty_rest_of_line ();
2488 /* Handle a .dim directive, used to give dimensions for an array. The
2489 arguments are comma separated numbers. mips-tfile assumes that
2490 there will not be more than 6 dimensions, and gdb won't read any
2491 more than that anyhow, so I will also make that assumption. */
2494 ecoff_directive_dim (ignore)
2500 if (coff_sym_name == (char *) NULL)
2502 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2503 demand_empty_rest_of_line ();
2507 for (i = 0; i < N_TQ; i++)
2510 dimens[i] = get_absolute_expression ();
2511 if (*input_line_pointer == ',')
2512 ++input_line_pointer;
2515 if (*input_line_pointer != '\n'
2516 && *input_line_pointer != ';')
2517 as_warn ("Badly formed .dim directive");
2525 /* The dimensions are stored away in reverse order. */
2528 if (coff_type.num_dims >= N_TQ)
2530 as_warn ("Too many .dim entries");
2533 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2534 ++coff_type.num_dims;
2537 demand_empty_rest_of_line ();
2540 /* Handle a .scl directive, which sets the COFF storage class of the
2544 ecoff_directive_scl (ignore)
2549 if (coff_sym_name == (char *) NULL)
2551 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2552 demand_empty_rest_of_line ();
2556 val = get_absolute_expression ();
2558 coff_symbol_typ = map_coff_sym_type[val];
2559 coff_storage_class = map_coff_storage[val];
2561 demand_empty_rest_of_line ();
2564 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2565 .size can have multiple arguments. We humor it, although gcc will
2566 never generate more than one argument. */
2569 ecoff_directive_size (ignore)
2575 if (coff_sym_name == (char *) NULL)
2577 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2578 demand_empty_rest_of_line ();
2582 for (i = 0; i < N_TQ; i++)
2585 sizes[i] = get_absolute_expression ();
2586 if (*input_line_pointer == ',')
2587 ++input_line_pointer;
2590 if (*input_line_pointer != '\n'
2591 && *input_line_pointer != ';')
2592 as_warn ("Badly formed .size directive");
2600 /* The sizes are stored away in reverse order. */
2603 if (coff_type.num_sizes >= N_TQ)
2605 as_warn ("Too many .size entries");
2608 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2609 ++coff_type.num_sizes;
2612 demand_empty_rest_of_line ();
2615 /* Handle the .type directive, which gives the COFF type of the
2619 ecoff_directive_type (ignore)
2626 if (coff_sym_name == (char *) NULL)
2628 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2629 demand_empty_rest_of_line ();
2633 val = get_absolute_expression ();
2635 coff_type.orig_type = BTYPE (val);
2636 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2638 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2639 while (val &~ N_BTMASK)
2641 if (tq_ptr == &coff_type.type_qualifiers[0])
2643 as_warn ("Too derived values in .type argument");
2648 else if (ISFCN (val))
2649 *--tq_ptr = tq_Proc;
2650 else if (ISARY (val))
2651 *--tq_ptr = tq_Array;
2653 as_fatal ("Unrecognized .type argument");
2658 tq_shft = &coff_type.type_qualifiers[0];
2659 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2660 *tq_shft++ = *tq_ptr++;
2662 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2664 /* If this is a function, ignore it, so that we don't get two
2665 entries (one from the .ent, and one for the .def that
2666 precedes it). Save the type information so that the end
2667 block can properly add it after the begin block index. For
2668 MIPS knows what reason, we must strip off the function type
2670 coff_is_function = 1;
2671 tq_shft[-1] = tq_Nil;
2674 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2675 *tq_shft++ = tq_Nil;
2677 demand_empty_rest_of_line ();
2680 /* Handle the .tag directive, which gives the name of a structure,
2684 ecoff_directive_tag (ignore)
2690 if (coff_sym_name == (char *) NULL)
2692 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2693 demand_empty_rest_of_line ();
2697 name = input_line_pointer;
2698 name_end = get_symbol_end ();
2700 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2701 strcpy (coff_tag, name);
2703 *input_line_pointer = name_end;
2705 demand_empty_rest_of_line ();
2708 /* Handle the .val directive, which gives the value of the symbol. It
2709 may be the name of a static or global symbol. */
2712 ecoff_directive_val (ignore)
2715 if (coff_sym_name == (char *) NULL)
2717 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2718 demand_empty_rest_of_line ();
2722 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2723 coff_value = get_absolute_expression ();
2729 name = input_line_pointer;
2730 name_end = get_symbol_end ();
2732 if (strcmp (name, ".") == 0)
2733 as_warn ("`.val .' not supported");
2735 coff_sym_value = symbol_find_or_make (name);
2737 *input_line_pointer = name_end;
2739 /* FIXME: gcc can generate address expressions here in unusual
2740 cases (search for "obscure" in sdbout.c), although this is
2741 very unlikely for a MIPS chip. */
2744 demand_empty_rest_of_line ();
2747 /* Handle the .endef directive, which terminates processing of COFF
2748 debugging information for a symbol. */
2751 ecoff_directive_endef (ignore)
2758 demand_empty_rest_of_line ();
2760 if (coff_sym_name == (char *) NULL)
2762 as_warn (".endef pseudo-op used before .def; ignored");
2766 name = coff_sym_name;
2767 coff_sym_name = (char *) NULL;
2769 /* If the symbol is a static or external, we have already gotten the
2770 appropriate type and class, so make sure we don't override those
2771 values. This is needed because there are some type and classes
2772 that are not in COFF, such as short data, etc. */
2773 if (coff_sym_value != (symbolS *) NULL)
2775 coff_symbol_typ = st_Nil;
2776 coff_storage_class = sc_Nil;
2779 coff_type.extra_sizes = coff_tag != (char *) NULL;
2780 if (coff_type.num_dims > 0)
2782 int diff = coff_type.num_dims - coff_type.num_sizes;
2783 int i = coff_type.num_dims - 1;
2786 if (coff_type.num_sizes != 1 || diff < 0)
2788 as_warn ("Bad COFF debugging info");
2792 /* If this is an array, make sure the same number of dimensions
2793 and sizes were passed, creating extra sizes for multiply
2794 dimensioned arrays if not passed. */
2795 coff_type.extra_sizes = 0;
2798 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2801 coff_type.sizes[j] = (((j - diff) >= 0)
2802 ? coff_type.sizes[j - diff]
2807 coff_type.num_sizes = i + 1;
2808 for (i--; i >= 0; i--)
2809 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2810 / coff_type.dimensions[i + 1]);
2813 else if (coff_symbol_typ == st_Member
2814 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2816 /* Is this a bitfield? This is indicated by a structure memeber
2817 having a size field that isn't an array. */
2818 coff_type.bitfield = 1;
2821 /* Except for enumeration members & begin/ending of scopes, put the
2822 type word in the aux. symbol table. */
2823 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2825 else if (coff_inside_enumeration)
2826 indx = cur_file_ptr->void_type;
2829 if (coff_type.basic_type == bt_Struct
2830 || coff_type.basic_type == bt_Union
2831 || coff_type.basic_type == bt_Enum)
2833 if (coff_tag == (char *) NULL)
2835 as_warn ("No tag specified for %s", name);
2839 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2840 coff_type.basic_type);
2843 if (coff_is_function)
2845 last_func_type_info = coff_type;
2846 last_func_sym_value = coff_sym_value;
2850 indx = add_aux_sym_tir (&coff_type,
2852 &cur_file_ptr->thash_head[0]);
2855 /* Do any last minute adjustments that are necessary. */
2856 switch (coff_symbol_typ)
2861 /* For the beginning of structs, unions, and enumerations, the
2862 size info needs to be passed in the value field. */
2864 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2867 as_warn ("Bad COFF debugging information");
2871 coff_value = coff_type.sizes[0];
2873 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2876 /* For the end of structs, unions, and enumerations, omit the
2877 name which is always ".eos". This needs to be done last, so
2878 that any error reporting above gives the correct name. */
2881 name = (char *) NULL;
2883 coff_inside_enumeration = 0;
2886 /* Members of structures and unions that aren't bitfields, need
2887 to adjust the value from a byte offset to a bit offset.
2888 Members of enumerations do not have the value adjusted, and
2889 can be distinguished by indx == indexNil. For enumerations,
2890 update the maximum enumeration value. */
2892 if (! coff_type.bitfield && ! coff_inside_enumeration)
2898 /* Add the symbol. */
2899 sym = add_ecoff_symbol (name,
2903 (symint_t) coff_value,
2906 /* deal with struct, union, and enum tags. */
2907 if (coff_symbol_typ == st_Block)
2909 /* Create or update the tag information. */
2910 tag_t *tag_ptr = get_tag (name,
2912 coff_type.basic_type);
2915 /* Remember any forward references. */
2916 for (pf = &sym->forward_ref;
2917 *pf != (forward_t *) NULL;
2920 *pf = tag_ptr->forward_ref;
2921 tag_ptr->forward_ref = (forward_t *) NULL;
2925 /* Parse .end directives. */
2928 ecoff_directive_end (ignore)
2936 if (cur_file_ptr == (efdr_t *) NULL)
2938 as_warn (".end directive without a preceding .file directive");
2939 demand_empty_rest_of_line ();
2943 if (cur_proc_ptr == (proc_t *) NULL)
2945 as_warn (".end directive without a preceding .ent directive");
2946 demand_empty_rest_of_line ();
2950 name = input_line_pointer;
2951 name_end = get_symbol_end ();
2954 if (! is_name_beginner (ch))
2956 as_warn (".end directive has no name");
2957 *input_line_pointer = name_end;
2958 demand_empty_rest_of_line ();
2962 /* The value is the distance between the .end directive and the
2963 corresponding symbol. We create a fake symbol to hold the
2964 current location, and put in the offset when we write out the
2966 ent = symbol_find (name);
2967 if (ent == (symbolS *) NULL)
2968 as_warn (".end directive names unknown symbol");
2970 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
2971 symbol_new ("L0\001", now_seg,
2972 (valueT) frag_now_fix (),
2974 (symint_t) 0, (symint_t) 0);
2976 cur_proc_ptr = (proc_t *) NULL;
2978 *input_line_pointer = name_end;
2979 demand_empty_rest_of_line ();
2982 /* Parse .ent directives. */
2985 ecoff_directive_ent (ignore)
2992 if (cur_file_ptr == (efdr_t *) NULL)
2993 add_file ((const char *) NULL, 0);
2995 if (cur_proc_ptr != (proc_t *) NULL)
2997 as_warn ("second .ent directive found before .end directive");
2998 demand_empty_rest_of_line ();
3002 name = input_line_pointer;
3003 name_end = get_symbol_end ();
3006 if (! is_name_beginner (ch))
3008 as_warn (".ent directive has no name");
3009 *input_line_pointer = name_end;
3010 demand_empty_rest_of_line ();
3014 add_procedure (name);
3016 *input_line_pointer = name_end;
3018 /* The .ent directive is sometimes followed by a number. I'm not
3019 really sure what the number means. I don't see any way to store
3020 the information in the PDR. The Irix 4 assembler seems to ignore
3023 if (*input_line_pointer == ',')
3025 ++input_line_pointer;
3028 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3029 (void) get_absolute_expression ();
3031 demand_empty_rest_of_line ();
3034 /* Parse .file directives. */
3037 ecoff_directive_file (ignore)
3044 if (cur_proc_ptr != (proc_t *) NULL)
3046 as_warn ("No way to handle .file within .ent/.end section");
3047 demand_empty_rest_of_line ();
3051 indx = (int) get_absolute_expression ();
3053 /* FIXME: we don't have to save the name here. */
3054 name = demand_copy_C_string (&len);
3056 add_file (name, indx - 1);
3058 demand_empty_rest_of_line ();
3061 /* Parse .fmask directives. */
3064 ecoff_directive_fmask (ignore)
3069 if (cur_proc_ptr == (proc_t *) NULL)
3071 as_warn (".fmask outside of .ent");
3072 demand_empty_rest_of_line ();
3076 if (get_absolute_expression_and_terminator (&val) != ',')
3078 as_warn ("Bad .fmask directive");
3079 --input_line_pointer;
3080 demand_empty_rest_of_line ();
3084 cur_proc_ptr->pdr.fregmask = val;
3085 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3087 demand_empty_rest_of_line ();
3090 /* Parse .frame directives. */
3093 ecoff_directive_frame (ignore)
3098 if (cur_proc_ptr == (proc_t *) NULL)
3100 as_warn (".frame outside of .ent");
3101 demand_empty_rest_of_line ();
3105 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3108 if (*input_line_pointer++ != ','
3109 || get_absolute_expression_and_terminator (&val) != ',')
3111 as_warn ("Bad .frame directive");
3112 --input_line_pointer;
3113 demand_empty_rest_of_line ();
3117 cur_proc_ptr->pdr.frameoffset = val;
3119 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3121 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3122 to Sandro. I don't yet know where this value should be stored, if
3124 demand_empty_rest_of_line ();
3130 /* Parse .mask directives. */
3133 ecoff_directive_mask (ignore)
3138 if (cur_proc_ptr == (proc_t *) NULL)
3140 as_warn (".mask outside of .ent");
3141 demand_empty_rest_of_line ();
3145 if (get_absolute_expression_and_terminator (&val) != ',')
3147 as_warn ("Bad .mask directive");
3148 --input_line_pointer;
3149 demand_empty_rest_of_line ();
3153 cur_proc_ptr->pdr.regmask = val;
3154 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3156 demand_empty_rest_of_line ();
3159 /* Parse .loc directives. */
3162 ecoff_directive_loc (ignore)
3165 lineno_list_t *list;
3168 if (cur_file_ptr == (efdr_t *) NULL)
3170 as_warn (".loc before .file");
3171 demand_empty_rest_of_line ();
3175 if (now_seg != text_section)
3177 as_warn (".loc outside of .text");
3178 demand_empty_rest_of_line ();
3182 /* Skip the file number. */
3184 get_absolute_expression ();
3187 lineno = get_absolute_expression ();
3191 listing_source_line (lineno);
3194 /* If we're building stabs, then output a special label rather than
3195 ECOFF line number info. */
3198 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3199 symbol_new ("L0\001", now_seg,
3200 (valueT) frag_now_fix (),
3206 list = allocate_lineno_list ();
3208 list->next = (lineno_list_t *) NULL;
3209 list->file = cur_file_ptr;
3210 list->proc = cur_proc_ptr;
3211 list->frag = frag_now;
3212 list->paddr = frag_now_fix ();
3213 list->lineno = lineno;
3215 /* A .loc directive will sometimes appear before a .ent directive,
3216 which means that cur_proc_ptr will be NULL here. Arrange to
3218 if (cur_proc_ptr == (proc_t *) NULL)
3222 pl = &noproc_lineno;
3223 while (*pl != (lineno_list_t *) NULL)
3229 *last_lineno_ptr = list;
3230 last_lineno_ptr = &list->next;
3234 /* Make sure the @stabs symbol is emitted. */
3242 /* Add a dummy @stabs dymbol. */
3244 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3246 (symint_t) -1, ECOFF_MARK_STAB (0));
3250 /* Handle .stabs directives. The actual parsing routine is done by a
3251 generic routine. This routine is called via OBJ_PROCESS_STAB.
3252 When this is called, input_line_pointer will be pointing at the
3253 value field of the stab.
3255 .stabs directives have five fields:
3256 "string" a string, encoding the type information.
3257 code a numeric code, defined in <stab.h>
3259 desc a zero or line number
3260 value a numeric value or an address.
3262 If the value is relocatable, we transform this into:
3263 iss points as an index into string space
3264 value value from lookup of the name
3265 st st from lookup of the name
3266 sc sc from lookup of the name
3267 index code|CODE_MASK
3269 If the value is not relocatable, we transform this into:
3270 iss points as an index into string space
3274 index code|CODE_MASK
3276 .stabn directives have four fields (string is null):
3277 code a numeric code, defined in <stab.h>
3279 desc a zero or a line number
3280 value a numeric value or an address. */
3283 ecoff_stab (what, string, type, other, desc)
3290 efdr_t *save_file_ptr = cur_file_ptr;
3296 localsym_t *hold = NULL;
3298 /* We don't handle .stabd. */
3299 if (what != 's' && what != 'n')
3301 as_bad (".stab%c is not supported", what);
3305 /* A .stabn uses a null name, not an empty string. */
3309 /* We ignore the other field. */
3311 as_warn (".stab%c: ignoring non-zero other field", what);
3313 /* Make sure we have a current file. */
3314 if (cur_file_ptr == (efdr_t *) NULL)
3316 add_file ((const char *) NULL, 0);
3317 save_file_ptr = cur_file_ptr;
3320 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3322 if (stabs_seen == 0)
3325 /* Line number stabs are handled differently, since they have two
3326 values, the line number and the address of the label. We use the
3327 index field (aka desc) to hold the line number, and the value
3328 field to hold the address. The symbol type is st_Label, which
3329 should be different from the other stabs, so that gdb can
3331 if (type == N_SLINE)
3339 listing_source_line ((unsigned int) desc);
3342 dummy_symr.index = desc;
3343 if (dummy_symr.index != desc)
3345 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3350 name = input_line_pointer;
3351 name_end = get_symbol_end ();
3353 sym = symbol_find_or_make (name);
3354 *input_line_pointer = name_end;
3364 if (listing && (type == N_SO || type == N_SOL))
3365 listing_source_file (string);
3368 if (isdigit (*input_line_pointer)
3369 || *input_line_pointer == '-'
3370 || *input_line_pointer == '+')
3374 sym = (symbolS *) NULL;
3375 value = get_absolute_expression ();
3377 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3379 as_warn ("Illegal .stab%c directive, bad character", what);
3387 name = input_line_pointer;
3388 name_end = get_symbol_end ();
3390 sym = symbol_find_or_make (name);
3396 *input_line_pointer = name_end;
3397 if (name_end == '+' || name_end == '-')
3399 ++input_line_pointer;
3400 value = get_absolute_expression ();
3401 if (name_end == '-')
3406 indx = ECOFF_MARK_STAB (type);
3409 /* Don't store the stabs symbol we are creating as the type of the
3410 ECOFF symbol. We want to compute the type of the ECOFF symbol
3412 if (sym != (symbolS *) NULL)
3413 hold = sym->ecoff_symbol;
3415 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3417 if (sym != (symbolS *) NULL)
3418 sym->ecoff_symbol = hold;
3420 /* Restore normal file type. */
3421 cur_file_ptr = save_file_ptr;
3424 /* Add bytes to the symbolic information buffer. */
3427 ecoff_add_bytes (buf, bufend, bufptr, need)
3437 need -= *bufend - bufptr;
3438 if (need < PAGE_SIZE)
3440 want = (*bufend - *buf) + need;
3441 *buf = xrealloc (*buf, want);
3442 *bufend = *buf + want;
3446 /* Adjust the symbolic information buffer to the alignment required
3447 for the ECOFF target debugging information. */
3449 static unsigned long
3450 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3451 const struct ecoff_debug_swap *backend;
3454 unsigned long offset;
3457 bfd_size_type align;
3459 align = backend->debug_align;
3460 if ((offset & (align - 1)) != 0)
3464 add = align - (offset & (align - 1));
3465 if (*bufend - (*buf + offset) < add)
3466 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3467 memset (*buf + offset, 0, add);
3469 if (bufptrptr != (char **) NULL)
3470 *bufptrptr = *buf + offset;
3476 /* Build the line number information. */
3478 static unsigned long
3479 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3480 const struct ecoff_debug_swap *backend;
3483 unsigned long offset;
3487 register lineno_list_t *l;
3488 lineno_list_t *last;
3495 if (linecntptr != (long *) NULL)
3498 bufptr = *buf + offset;
3500 file = (efdr_t *) NULL;
3501 proc = (proc_t *) NULL;
3502 last = (lineno_list_t *) NULL;
3506 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3511 /* Get the offset to the memory address of the next line number
3512 (in words). Do this first, so that we can skip ahead to the
3513 next useful line number entry. */
3514 if (l->next == (lineno_list_t *) NULL)
3518 count = ((l->next->frag->fr_address + l->next->paddr
3519 - (l->frag->fr_address + l->paddr))
3523 /* Don't change last, so we still get the right delta. */
3528 if (l->file != file || l->proc != proc)
3530 if (l->proc != proc && proc != (proc_t *) NULL)
3531 proc->pdr.lnHigh = last->lineno;
3532 if (l->file != file && file != (efdr_t *) NULL)
3534 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3535 /* The cline field is ill-documented. This is a guess
3536 at the right value. */
3537 file->fdr.cline = totcount + count;
3538 if (linecntptr != (long *) NULL)
3539 *linecntptr += totcount + count;
3543 if (l->file != file)
3546 file->fdr.ilineBase = iline;
3547 file->fdr.cbLineOffset = c;
3549 if (l->proc != proc)
3552 if (proc != (proc_t *) NULL)
3554 proc->pdr.lnLow = l->lineno;
3555 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3556 /* The iline field is ill-documented. This is a
3557 guess at the right value. */
3558 proc->pdr.iline = totcount;
3562 last = (lineno_list_t *) NULL;
3567 /* Get the offset to this line number. */
3568 if (last == (lineno_list_t *) NULL)
3571 delta = l->lineno - last->lineno;
3573 /* Put in the offset to this line number. */
3578 /* 1 is added to each count read. */
3580 /* We can only adjust the word count by up to 15 words at a
3592 if (delta >= -7 && delta <= 7)
3594 if (bufptr >= *bufend)
3595 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3596 *bufptr++ = setcount + (delta << 4);
3604 if (*bufend - bufptr < 3)
3605 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3606 *bufptr++ = setcount + (8 << 4);
3607 if (delta < -0x8000)
3612 else if (delta > 0x7fff)
3622 *bufptr++ = set >> 8;
3623 *bufptr++ = set & 0xffff;
3628 /* Finish adjusting the count. */
3631 if (bufptr >= *bufend)
3632 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3633 /* 1 is added to each count read. */
3652 if (proc != (proc_t *) NULL)
3653 proc->pdr.lnHigh = last->lineno;
3654 if (file != (efdr_t *) NULL)
3656 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3657 file->fdr.cline = totcount;
3660 if (linecntptr != (long *) NULL)
3661 *linecntptr += totcount;
3663 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3668 /* Build and swap out the symbols. */
3670 static unsigned long
3671 ecoff_build_symbols (backend, buf, bufend, offset)
3672 const struct ecoff_debug_swap *backend;
3675 unsigned long offset;
3677 const bfd_size_type external_sym_size = backend->external_sym_size;
3678 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3679 = backend->swap_sym_out;
3682 vlinks_t *file_link;
3684 sym_out = *buf + offset;
3688 /* The symbols are stored by file. */
3689 for (file_link = file_desc.first;
3690 file_link != (vlinks_t *) NULL;
3691 file_link = file_link->next)
3698 if (file_link->next == (vlinks_t *) NULL)
3699 fil_cnt = file_desc.objects_last_page;
3701 fil_cnt = file_desc.objects_per_page;
3702 fil_ptr = file_link->datum->file;
3703 fil_end = fil_ptr + fil_cnt;
3704 for (; fil_ptr < fil_end; fil_ptr++)
3708 fil_ptr->fdr.isymBase = isym;
3710 for (sym_link = fil_ptr->symbols.first;
3711 sym_link != (vlinks_t *) NULL;
3712 sym_link = sym_link->next)
3715 localsym_t *sym_ptr;
3716 localsym_t *sym_end;
3718 if (sym_link->next == (vlinks_t *) NULL)
3719 sym_cnt = fil_ptr->symbols.objects_last_page;
3721 sym_cnt = fil_ptr->symbols.objects_per_page;
3722 sym_ptr = sym_link->datum->sym;
3723 sym_end = sym_ptr + sym_cnt;
3724 for (; sym_ptr < sym_end; sym_ptr++)
3730 know (sym_ptr->file_ptr == fil_ptr);
3732 /* If there is no associated gas symbol, then this
3733 is a pure debugging symbol. We have already
3734 added the name (if any) to fil_ptr->strings.
3735 Otherwise we must decide whether this is an
3736 external or a local symbol (actually, it may be
3737 both if the local provides additional debugging
3738 information for the external). */
3740 as_sym = sym_ptr->as_sym;
3741 if (as_sym != (symbolS *) NULL)
3745 /* The value of a block start symbol is the
3746 offset from the start of the procedure. For
3747 other symbols we just use the gas value (but
3748 we must offset it by the vma of the section,
3749 just as BFD does, because BFD will not see
3751 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3752 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3756 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3757 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3758 if (S_GET_SEGMENT (as_sym)
3759 != S_GET_SEGMENT (begin_sym))
3760 as_warn (".begin/.bend in different segments");
3761 sym_ptr->ecoff_sym.asym.value =
3762 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3765 sym_ptr->ecoff_sym.asym.value =
3766 (S_GET_VALUE (as_sym)
3767 + bfd_get_section_vma (stdoutput,
3768 S_GET_SEGMENT (as_sym)));
3770 /* Set st_Proc to st_StaticProc for local
3772 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3773 && S_IS_DEFINED (as_sym)
3774 && ! S_IS_EXTERNAL (as_sym))
3775 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3777 /* Get the type and storage class based on where
3778 the symbol actually wound up. Traditionally,
3779 N_LBRAC and N_RBRAC are *not* relocated. */
3780 indx = sym_ptr->ecoff_sym.asym.index;
3781 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3782 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3783 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3784 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3785 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3788 const char *segname;
3792 seg = S_GET_SEGMENT (as_sym);
3793 segname = segment_name (seg);
3795 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3796 && (S_IS_EXTERNAL (as_sym)
3797 || ! S_IS_DEFINED (as_sym)))
3799 else if (seg == text_section)
3804 if (! S_IS_DEFINED (as_sym)
3805 || as_sym->ecoff_undefined)
3807 if (S_GET_VALUE (as_sym) > 0
3808 && (S_GET_VALUE (as_sym)
3809 <= bfd_get_gp_size (stdoutput)))
3814 else if (S_IS_COMMON (as_sym))
3816 if (S_GET_VALUE (as_sym) > 0
3817 && (S_GET_VALUE (as_sym)
3818 <= bfd_get_gp_size (stdoutput)))
3823 else if (seg == text_section)
3825 else if (seg == data_section)
3827 else if (strcmp (segname, ".rdata") == 0
3828 || strcmp (segname, ".rodata") == 0)
3830 else if (strcmp (segname, ".sdata") == 0)
3832 else if (seg == bss_section)
3834 else if (strcmp (segname, ".sbss") == 0)
3836 else if (seg == &bfd_abs_section)
3841 sym_ptr->ecoff_sym.asym.st = (int) st;
3842 sym_ptr->ecoff_sym.asym.sc = (int) sc;
3845 /* This is just an external symbol if it is
3846 outside a procedure and it has a type.
3847 FIXME: g++ will generate symbols which have
3848 different names in the debugging information
3849 than the actual symbol. Should we handle
3851 if ((S_IS_EXTERNAL (as_sym)
3852 || ! S_IS_DEFINED (as_sym))
3853 && sym_ptr->proc_ptr == (proc_t *) NULL
3854 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
3855 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
3858 /* If an st_end symbol has an associated gas
3859 symbol, then it is a local label created for
3860 a .bend or .end directive. Stabs line
3861 numbers will have \001 in the names. */
3863 && sym_ptr->ecoff_sym.asym.st != st_End
3864 && strchr (sym_ptr->name, '\001') == 0)
3865 sym_ptr->ecoff_sym.asym.iss =
3866 add_string (&fil_ptr->strings,
3872 /* We now know the index of this symbol; fill in
3873 locations that have been waiting for that
3875 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3877 localsym_t *begin_ptr;
3881 begin_ptr = sym_ptr->begin_ptr;
3882 know (begin_ptr->sym_index != -1);
3883 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
3884 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3885 sym_ptr->ecoff_sym.asym.iss =
3886 begin_ptr->ecoff_sym.asym.iss;
3888 begin_type = begin_ptr->ecoff_sym.asym.st;
3889 if (begin_type == st_File
3890 || begin_type == st_Block)
3892 begin_ptr->ecoff_sym.asym.index =
3893 isym - ifilesym + 1;
3894 (*swap_sym_out) (stdoutput,
3895 &begin_ptr->ecoff_sym.asym,
3898 + (begin_ptr->sym_index
3899 * external_sym_size)));
3903 know (begin_ptr->index_ptr != (aux_t *) NULL);
3904 begin_ptr->index_ptr->data.isym =
3905 isym - ifilesym + 1;
3908 /* The value of the symbol marking the end of a
3909 procedure is the size of the procedure. The
3910 value of the symbol marking the end of a
3911 block is the offset from the start of the
3912 procedure to the block. */
3913 if (begin_type == st_Proc
3914 || begin_type == st_StaticProc)
3916 know (as_sym != (symbolS *) NULL);
3917 know (begin_ptr->as_sym != (symbolS *) NULL);
3918 if (S_GET_SEGMENT (as_sym)
3919 != S_GET_SEGMENT (begin_ptr->as_sym))
3920 as_warn (".begin/.bend in different segments");
3921 sym_ptr->ecoff_sym.asym.value =
3922 (S_GET_VALUE (as_sym)
3923 - S_GET_VALUE (begin_ptr->as_sym));
3925 else if (begin_type == st_Block
3926 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3930 know (as_sym != (symbolS *) NULL);
3931 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3932 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3933 if (S_GET_SEGMENT (as_sym)
3934 != S_GET_SEGMENT (begin_sym))
3935 as_warn (".begin/.bend in different segments");
3936 sym_ptr->ecoff_sym.asym.value =
3937 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3941 for (f = sym_ptr->forward_ref;
3942 f != (forward_t *) NULL;
3946 f->ifd_ptr->data.isym = fil_ptr->file_index;
3947 f->index_ptr->data.rndx.index = isym - ifilesym;
3952 if (*bufend - sym_out < external_sym_size)
3953 sym_out = ecoff_add_bytes (buf, bufend,
3956 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
3958 sym_out += external_sym_size;
3960 sym_ptr->sym_index = isym;
3962 if (sym_ptr->proc_ptr != (proc_t *) NULL
3963 && sym_ptr->proc_ptr->sym == sym_ptr)
3964 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
3969 /* Record the local symbol index and file number in
3970 case this is an external symbol. Note that this
3971 destroys the asym.index field. */
3972 if (as_sym != (symbolS *) NULL
3973 && as_sym->ecoff_symbol == sym_ptr)
3975 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3976 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
3979 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
3981 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
3985 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
3989 return offset + isym * external_sym_size;
3992 /* Swap out the procedure information. */
3994 static unsigned long
3995 ecoff_build_procs (backend, buf, bufend, offset)
3996 const struct ecoff_debug_swap *backend;
3999 unsigned long offset;
4001 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4002 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4003 = backend->swap_pdr_out;
4007 vlinks_t *file_link;
4009 pdr_out = *buf + offset;
4014 /* The procedures are stored by file. */
4015 for (file_link = file_desc.first;
4016 file_link != (vlinks_t *) NULL;
4017 file_link = file_link->next)
4023 if (file_link->next == (vlinks_t *) NULL)
4024 fil_cnt = file_desc.objects_last_page;
4026 fil_cnt = file_desc.objects_per_page;
4027 fil_ptr = file_link->datum->file;
4028 fil_end = fil_ptr + fil_cnt;
4029 for (; fil_ptr < fil_end; fil_ptr++)
4031 vlinks_t *proc_link;
4034 fil_ptr->fdr.ipdFirst = iproc;
4036 for (proc_link = fil_ptr->procs.first;
4037 proc_link != (vlinks_t *) NULL;
4038 proc_link = proc_link->next)
4044 if (proc_link->next == (vlinks_t *) NULL)
4045 prc_cnt = fil_ptr->procs.objects_last_page;
4047 prc_cnt = fil_ptr->procs.objects_per_page;
4048 proc_ptr = proc_link->datum->proc;
4049 proc_end = proc_ptr + prc_cnt;
4050 for (; proc_ptr < proc_end; proc_ptr++)
4055 adr_sym = proc_ptr->sym->as_sym;
4056 adr = (S_GET_VALUE (adr_sym)
4057 + bfd_get_section_vma (stdoutput,
4058 S_GET_SEGMENT (adr_sym)));
4064 fil_ptr->fdr.adr = adr;
4067 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4068 if (*bufend - pdr_out < external_pdr_size)
4069 pdr_out = ecoff_add_bytes (buf, bufend,
4072 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4073 pdr_out += external_pdr_size;
4077 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4081 return offset + iproc * external_pdr_size;
4084 /* Swap out the aux information. */
4086 static unsigned long
4087 ecoff_build_aux (backend, buf, bufend, offset)
4088 const struct ecoff_debug_swap *backend;
4091 unsigned long offset;
4094 union aux_ext *aux_out;
4096 vlinks_t *file_link;
4098 bigendian = stdoutput->xvec->header_byteorder_big_p;
4100 aux_out = (union aux_ext *) (*buf + offset);
4104 /* The aux entries are stored by file. */
4105 for (file_link = file_desc.first;
4106 file_link != (vlinks_t *) NULL;
4107 file_link = file_link->next)
4113 if (file_link->next == (vlinks_t *) NULL)
4114 fil_cnt = file_desc.objects_last_page;
4116 fil_cnt = file_desc.objects_per_page;
4117 fil_ptr = file_link->datum->file;
4118 fil_end = fil_ptr + fil_cnt;
4119 for (; fil_ptr < fil_end; fil_ptr++)
4123 fil_ptr->fdr.fBigendian = bigendian;
4124 fil_ptr->fdr.iauxBase = iaux;
4125 for (aux_link = fil_ptr->aux_syms.first;
4126 aux_link != (vlinks_t *) NULL;
4127 aux_link = aux_link->next)
4133 if (aux_link->next == (vlinks_t *) NULL)
4134 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4136 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4137 aux_ptr = aux_link->datum->aux;
4138 aux_end = aux_ptr + aux_cnt;
4139 for (; aux_ptr < aux_end; aux_ptr++)
4141 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4142 aux_out = ((union aux_ext *)
4143 ecoff_add_bytes (buf, bufend,
4145 sizeof (union aux_ext)));
4146 switch (aux_ptr->type)
4149 ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
4153 ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
4157 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4161 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4165 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4169 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4173 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4177 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4186 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4190 return ecoff_padding_adjust (backend, buf, bufend,
4191 offset + iaux * sizeof (union aux_ext),
4195 /* Copy out the strings from a varray_t. This returns the number of
4196 bytes copied, rather than the new offset. */
4198 static unsigned long
4199 ecoff_build_strings (buf, bufend, offset, vp)
4202 unsigned long offset;
4209 str_out = *buf + offset;
4213 for (str_link = vp->first;
4214 str_link != (vlinks_t *) NULL;
4215 str_link = str_link->next)
4217 unsigned long str_cnt;
4219 if (str_link->next == (vlinks_t *) NULL)
4220 str_cnt = vp->objects_last_page;
4222 str_cnt = vp->objects_per_page;
4224 if (*bufend - str_out < str_cnt)
4225 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4227 memcpy (str_out, str_link->datum->byte, str_cnt);
4235 /* Dump out the local strings. */
4237 static unsigned long
4238 ecoff_build_ss (backend, buf, bufend, offset)
4239 const struct ecoff_debug_swap *backend;
4242 unsigned long offset;
4245 vlinks_t *file_link;
4249 for (file_link = file_desc.first;
4250 file_link != (vlinks_t *) NULL;
4251 file_link = file_link->next)
4257 if (file_link->next == (vlinks_t *) NULL)
4258 fil_cnt = file_desc.objects_last_page;
4260 fil_cnt = file_desc.objects_per_page;
4261 fil_ptr = file_link->datum->file;
4262 fil_end = fil_ptr + fil_cnt;
4263 for (; fil_ptr < fil_end; fil_ptr++)
4267 fil_ptr->fdr.issBase = iss;
4268 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4270 fil_ptr->fdr.cbSs = ss_cnt;
4275 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4279 /* Swap out the file descriptors. */
4281 static unsigned long
4282 ecoff_build_fdr (backend, buf, bufend, offset)
4283 const struct ecoff_debug_swap *backend;
4286 unsigned long offset;
4288 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4289 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4290 = backend->swap_fdr_out;
4293 vlinks_t *file_link;
4297 fdr_out = *buf + offset;
4299 for (file_link = file_desc.first;
4300 file_link != (vlinks_t *) NULL;
4301 file_link = file_link->next)
4307 if (file_link->next == (vlinks_t *) NULL)
4308 fil_cnt = file_desc.objects_last_page;
4310 fil_cnt = file_desc.objects_per_page;
4311 fil_ptr = file_link->datum->file;
4312 fil_end = fil_ptr + fil_cnt;
4313 for (; fil_ptr < fil_end; fil_ptr++)
4315 if (*bufend - fdr_out < external_fdr_size)
4316 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4318 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4319 fdr_out += external_fdr_size;
4324 return offset + ifile * external_fdr_size;
4327 /* Set up the external symbols. These are supposed to be handled by
4328 the backend. This routine just gets the right information and
4329 calls a backend function to deal with it. */
4334 register symbolS *sym;
4336 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4338 if (sym->ecoff_symbol == NULL)
4341 /* If this is a local symbol, then force the fields to zero. */
4342 if (! S_IS_EXTERNAL (sym)
4343 && S_IS_DEFINED (sym))
4345 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4346 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4347 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4348 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4351 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4355 /* Build the ECOFF dbeugging information. */
4358 ecoff_build_debug (hdr, bufp, backend)
4361 const struct ecoff_debug_swap *backend;
4363 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4368 efdr_t *hold_file_ptr;
4369 proc_t * hold_proc_ptr;
4373 unsigned long offset;
4375 /* Make sure we have a file. */
4376 if (first_file == (efdr_t *) NULL)
4377 add_file ((const char *) NULL, 0);
4379 /* Handle any top level tags. */
4380 for (ptag = top_tag_head->first_tag;
4381 ptag != (tag_t *) NULL;
4384 if (ptag->forward_ref != (forward_t *) NULL)
4385 add_unknown_tag (ptag);
4387 ptag_next = ptag->same_block;
4388 ptag->hash_ptr->tag_ptr = ptag->same_name;
4392 free_thead (top_tag_head);
4394 /* Look through the symbols. Add debugging information for each
4395 symbol that has not already received it. */
4396 hold_file_ptr = cur_file_ptr;
4397 hold_proc_ptr = cur_proc_ptr;
4398 cur_proc_ptr = (proc_t *) NULL;
4399 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4401 if (sym->ecoff_symbol != NULL
4402 || sym->ecoff_file == (efdr_t *) NULL
4403 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4406 cur_file_ptr = sym->ecoff_file;
4407 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4408 S_GET_VALUE (sym), indexNil);
4410 cur_proc_ptr = hold_proc_ptr;
4411 cur_file_ptr = hold_file_ptr;
4413 /* Output an ending symbol for all the files. We have to do this
4414 here for the last file, so we may as well do it for all of the
4417 for (fil_ptr = first_file;
4418 fil_ptr != (efdr_t *) NULL;
4419 fil_ptr = fil_ptr->next_file)
4421 cur_file_ptr = fil_ptr;
4422 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4424 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4427 as_warn ("Missing .end or .bend at end of file");
4431 (void) add_ecoff_symbol ((const char *) NULL,
4438 /* Build the symbolic information. */
4440 buf = xmalloc (PAGE_SIZE);
4441 bufend = buf + PAGE_SIZE;
4443 /* Build the line number information. */
4444 hdr->cbLineOffset = offset;
4445 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4447 hdr->cbLine = offset - hdr->cbLineOffset;
4449 /* We don't use dense numbers at all. */
4451 hdr->cbDnOffset = 0;
4453 /* We can't build the PDR table until we have built the symbols,
4454 because a PDR contains a symbol index. However, we set aside
4455 space at this point. */
4456 hdr->ipdMax = proc_cnt;
4457 hdr->cbPdOffset = offset;
4458 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4459 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4460 proc_cnt * external_pdr_size);
4461 offset += proc_cnt * external_pdr_size;
4463 /* Build the local symbols. */
4464 hdr->cbSymOffset = offset;
4465 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4466 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4468 /* Building the symbols initializes the symbol index in the PDR's.
4469 Now we can swap out the PDR's. */
4470 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4472 /* We don't use optimization symbols. */
4474 hdr->cbOptOffset = 0;
4476 /* Swap out the auxiliary type information. */
4477 hdr->cbAuxOffset = offset;
4478 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4479 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4481 /* Copy out the local strings. */
4482 hdr->cbSsOffset = offset;
4483 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4484 hdr->issMax = offset - hdr->cbSsOffset;
4486 /* We don't use relative file descriptors. */
4488 hdr->cbRfdOffset = 0;
4490 /* Swap out the file descriptors. */
4491 hdr->cbFdOffset = offset;
4492 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4493 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4495 /* Set up the external symbols, which are handled by the BFD back
4498 hdr->cbSsExtOffset = 0;
4500 hdr->cbExtOffset = 0;
4503 know ((offset & (backend->debug_align - 1)) == 0);
4505 hdr->magic = backend->sym_magic;
4506 /* FIXME: what should hdr->vstamp be? */
4507 hdr->vstamp = 0x020b;
4513 /* Allocate a cluster of pages. */
4515 #ifndef MALLOC_CHECK
4518 allocate_cluster (npages)
4519 unsigned long npages;
4521 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4525 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4528 memset (value, 0, npages * PAGE_USIZE);
4534 static page_t *cluster_ptr = NULL;
4535 static unsigned long pages_left = 0;
4537 #endif /* MALLOC_CHECK */
4539 /* Allocate one page (which is initialized to 0). */
4544 #ifndef MALLOC_CHECK
4546 if (pages_left == 0)
4548 pages_left = MAX_CLUSTER_PAGES;
4549 cluster_ptr = allocate_cluster (pages_left);
4553 return cluster_ptr++;
4555 #else /* MALLOC_CHECK */
4559 ptr = xmalloc (PAGE_USIZE);
4560 memset (ptr, 0, PAGE_USIZE);
4563 #endif /* MALLOC_CHECK */
4566 /* Allocate scoping information. */
4571 register scope_t *ptr;
4572 static scope_t initial_scope;
4574 #ifndef MALLOC_CHECK
4576 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4577 if (ptr != (scope_t *) NULL)
4578 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4581 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4582 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4584 if (unallocated == 0)
4586 unallocated = PAGE_SIZE / sizeof (scope_t);
4587 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4588 alloc_counts[(int)alloc_type_scope].total_pages++;
4591 ptr = &cur_page->scope[--unallocated];
4592 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4597 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4601 alloc_counts[(int)alloc_type_scope].total_alloc++;
4602 *ptr = initial_scope;
4606 /* Free scoping information. */
4612 alloc_counts[(int)alloc_type_scope].total_free++;
4614 #ifndef MALLOC_CHECK
4615 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4616 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4622 /* Allocate links for pages in a virtual array. */
4627 register vlinks_t *ptr;
4628 static vlinks_t initial_vlinks;
4630 #ifndef MALLOC_CHECK
4632 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4633 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4635 if (unallocated == 0)
4637 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4638 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4639 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4642 ptr = &cur_page->vlinks[--unallocated];
4643 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4647 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4651 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4652 *ptr = initial_vlinks;
4656 /* Allocate string hash buckets. */
4661 register shash_t *ptr;
4662 static shash_t initial_shash;
4664 #ifndef MALLOC_CHECK
4666 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4667 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4669 if (unallocated == 0)
4671 unallocated = PAGE_SIZE / sizeof (shash_t);
4672 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4673 alloc_counts[(int)alloc_type_shash].total_pages++;
4676 ptr = &cur_page->shash[--unallocated];
4677 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4681 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4685 alloc_counts[(int)alloc_type_shash].total_alloc++;
4686 *ptr = initial_shash;
4690 /* Allocate type hash buckets. */
4695 register thash_t *ptr;
4696 static thash_t initial_thash;
4698 #ifndef MALLOC_CHECK
4700 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4701 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4703 if (unallocated == 0)
4705 unallocated = PAGE_SIZE / sizeof (thash_t);
4706 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4707 alloc_counts[(int)alloc_type_thash].total_pages++;
4710 ptr = &cur_page->thash[--unallocated];
4711 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4715 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4719 alloc_counts[(int)alloc_type_thash].total_alloc++;
4720 *ptr = initial_thash;
4724 /* Allocate structure, union, or enum tag information. */
4729 register tag_t *ptr;
4730 static tag_t initial_tag;
4732 #ifndef MALLOC_CHECK
4734 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4735 if (ptr != (tag_t *) NULL)
4736 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4739 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4740 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4742 if (unallocated == 0)
4744 unallocated = PAGE_SIZE / sizeof (tag_t);
4745 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4746 alloc_counts[(int)alloc_type_tag].total_pages++;
4749 ptr = &cur_page->tag[--unallocated];
4750 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4755 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4759 alloc_counts[(int)alloc_type_tag].total_alloc++;
4764 /* Free scoping information. */
4770 alloc_counts[(int)alloc_type_tag].total_free++;
4772 #ifndef MALLOC_CHECK
4773 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4774 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4780 /* Allocate forward reference to a yet unknown tag. */
4785 register forward_t *ptr;
4786 static forward_t initial_forward;
4788 #ifndef MALLOC_CHECK
4790 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4791 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4793 if (unallocated == 0)
4795 unallocated = PAGE_SIZE / sizeof (forward_t);
4796 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4797 alloc_counts[(int)alloc_type_forward].total_pages++;
4800 ptr = &cur_page->forward[--unallocated];
4801 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4805 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4809 alloc_counts[(int)alloc_type_forward].total_alloc++;
4810 *ptr = initial_forward;
4814 /* Allocate head of type hash list. */
4819 register thead_t *ptr;
4820 static thead_t initial_thead;
4822 #ifndef MALLOC_CHECK
4824 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4825 if (ptr != (thead_t *) NULL)
4826 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4829 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4830 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4832 if (unallocated == 0)
4834 unallocated = PAGE_SIZE / sizeof (thead_t);
4835 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4836 alloc_counts[(int)alloc_type_thead].total_pages++;
4839 ptr = &cur_page->thead[--unallocated];
4840 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4845 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4849 alloc_counts[(int)alloc_type_thead].total_alloc++;
4850 *ptr = initial_thead;
4854 /* Free scoping information. */
4860 alloc_counts[(int)alloc_type_thead].total_free++;
4862 #ifndef MALLOC_CHECK
4863 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4864 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4870 static lineno_list_t *
4871 allocate_lineno_list ()
4873 register lineno_list_t *ptr;
4874 static lineno_list_t initial_lineno_list;
4876 #ifndef MALLOC_CHECK
4878 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4879 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4881 if (unallocated == 0)
4883 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4884 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4885 alloc_counts[(int)alloc_type_lineno].total_pages++;
4888 ptr = &cur_page->lineno[--unallocated];
4889 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
4893 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
4897 alloc_counts[(int)alloc_type_lineno].total_alloc++;
4898 *ptr = initial_lineno_list;
4902 ecoff_set_gp_prolog_size (sz)
4905 if (cur_proc_ptr == 0)
4908 cur_proc_ptr->pdr.gp_prologue = sz;
4909 if (cur_proc_ptr->pdr.gp_prologue != sz)
4911 as_warn ("GP prologue size exceeds field size, using 0 instead");
4912 cur_proc_ptr->pdr.gp_prologue = 0;
4915 cur_proc_ptr->pdr.gp_used = 1;
4918 #endif /* ECOFF_DEBUGGING */