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
781 /* Linked list connecting separate page allocations. */
782 typedef struct vlinks {
783 struct vlinks *prev; /* previous set of pages */
784 struct vlinks *next; /* next set of pages */
785 union page *datum; /* start of page */
786 unsigned long start_index; /* starting index # of page */
790 /* Virtual array header. */
791 typedef struct varray {
792 vlinks_t *first; /* first page link */
793 vlinks_t *last; /* last page link */
794 unsigned long num_allocated; /* # objects allocated */
795 unsigned short object_size; /* size in bytes of each object */
796 unsigned short objects_per_page; /* # objects that can fit on a page */
797 unsigned short objects_last_page; /* # objects allocated on last page */
801 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
803 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
806 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
807 (vlinks_t *)0, /* first */ \
808 (vlinks_t *)0, /* last */ \
809 0, /* num_allocated */ \
810 sizeof (type), /* object_size */ \
811 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
812 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
816 /* Master type for indexes within the symbol table. */
817 typedef unsigned long symint_t;
820 /* Linked list support for nested scopes (file, block, structure, etc.). */
821 typedef struct scope {
822 struct scope *prev; /* previous scope level */
823 struct scope *free; /* free list pointer */
824 struct localsym *lsym; /* pointer to local symbol node */
825 st_t type; /* type of the node */
829 /* For a local symbol we store a gas symbol as well as the debugging
830 information we generate. The gas symbol will be NULL if this is
831 only a debugging symbol. */
832 typedef struct localsym {
833 const char *name; /* symbol name */
834 symbolS *as_sym; /* symbol as seen by gas */
835 struct efdr *file_ptr; /* file pointer */
836 struct ecoff_proc *proc_ptr; /* proc pointer */
837 struct localsym *begin_ptr; /* symbol at start of block */
838 struct ecoff_aux *index_ptr; /* index value to be filled in */
839 struct forward *forward_ref; /* forward references to this symbol */
840 long sym_index; /* final symbol index */
841 EXTR ecoff_sym; /* ECOFF debugging symbol */
845 /* For aux information we keep the type and the data. */
846 typedef struct ecoff_aux {
847 enum aux_type type; /* aux type */
848 AUXU data; /* aux data */
851 /* For a procedure we store the gas symbol as well as the PDR
852 debugging information. */
853 typedef struct ecoff_proc {
854 localsym_t *sym; /* associated symbol */
855 PDR pdr; /* ECOFF debugging info */
858 /* Number of proc_t structures allocated. */
859 static unsigned long proc_cnt;
862 /* Forward reference list for tags referenced, but not yet defined. */
863 typedef struct forward {
864 struct forward *next; /* next forward reference */
865 struct forward *free; /* free list pointer */
866 aux_t *ifd_ptr; /* pointer to store file index */
867 aux_t *index_ptr; /* pointer to store symbol index */
871 /* Linked list support for tags. The first tag in the list is always
872 the current tag for that block. */
874 struct tag *free; /* free list pointer */
875 struct shash *hash_ptr; /* pointer to the hash table head */
876 struct tag *same_name; /* tag with same name in outer scope */
877 struct tag *same_block; /* next tag defined in the same block. */
878 struct forward *forward_ref; /* list of forward references */
879 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
880 symint_t ifd; /* file # tag defined in */
881 localsym_t *sym; /* file's local symbols */
885 /* Head of a block's linked list of tags. */
886 typedef struct thead {
887 struct thead *prev; /* previous block */
888 struct thead *free; /* free list pointer */
889 struct tag *first_tag; /* first tag in block defined */
893 /* Union containing pointers to each the small structures which are freed up. */
894 typedef union small_free {
895 scope_t *f_scope; /* scope structure */
896 thead_t *f_thead; /* tag head structure */
897 tag_t *f_tag; /* tag element structure */
898 forward_t *f_forward; /* forward tag reference */
902 /* String hash table entry. */
904 typedef struct shash {
905 char *string; /* string we are hashing */
906 symint_t indx; /* index within string table */
907 EXTR *esym_ptr; /* global symbol pointer */
908 localsym_t *sym_ptr; /* local symbol pointer */
909 localsym_t *end_ptr; /* symbol pointer to end block */
910 tag_t *tag_ptr; /* tag pointer */
911 proc_t *proc_ptr; /* procedure descriptor pointer */
915 /* Type hash table support. The size of the hash table must fit
916 within a page with the other extended file descriptor information.
917 Because unique types which are hashed are fewer in number than
918 strings, we use a smaller hash value. */
923 #define THASH_SIZE 113
926 typedef struct thash {
927 struct thash *next; /* next hash value */
928 AUXU type; /* type we are hashing */
929 symint_t indx; /* index within string table */
933 /* Extended file descriptor that contains all of the support necessary
934 to add things to each file separately. */
935 typedef struct efdr {
936 FDR fdr; /* File header to be written out */
937 FDR *orig_fdr; /* original file header */
938 char *name; /* filename */
939 symint_t void_type; /* aux. pointer to 'void' type */
940 symint_t int_type; /* aux. pointer to 'int' type */
941 scope_t *cur_scope; /* current nested scopes */
942 symint_t file_index; /* current file number */
943 int nested_scopes; /* # nested scopes */
944 varray_t strings; /* local strings */
945 varray_t symbols; /* local symbols */
946 varray_t procs; /* procedures */
947 varray_t aux_syms; /* auxiliary symbols */
948 struct efdr *next_file; /* next file descriptor */
949 /* string/type hash tables */
950 struct hash_control *str_hash; /* string hash table */
951 thash_t *thash_head[THASH_SIZE];
954 /* Pre-initialized extended file structure. */
955 static const efdr_t init_file =
957 { /* FDR structure */
958 0, /* adr: memory address of beginning of file */
959 0, /* rss: file name (of source, if known) */
960 0, /* issBase: file's string space */
961 0, /* cbSs: number of bytes in the ss */
962 0, /* isymBase: beginning of symbols */
963 0, /* csym: count file's of symbols */
964 0, /* ilineBase: file's line symbols */
965 0, /* cline: count of file's line symbols */
966 0, /* ioptBase: file's optimization entries */
967 0, /* copt: count of file's optimization entries */
968 0, /* ipdFirst: start of procedures for this file */
969 0, /* cpd: count of procedures for this file */
970 0, /* iauxBase: file's auxiliary entries */
971 0, /* caux: count of file's auxiliary entries */
972 0, /* rfdBase: index into the file indirect table */
973 0, /* crfd: count file indirect entries */
974 langC, /* lang: language for this file */
975 0, /* fMerge: whether this file can be merged */
976 0, /* fReadin: true if read in (not just created) */
977 #ifdef TARGET_BYTES_BIG_ENDIAN
978 1, /* fBigendian: if 1, compiled on big endian machine */
980 0, /* fBigendian: if 1, compiled on big endian machine */
982 GLEVEL_2, /* glevel: level this file was compiled with */
983 0, /* reserved: reserved for future use */
984 0, /* cbLineOffset: byte offset from header for this file ln's */
985 0, /* cbLine: size of lines for this file */
988 (FDR *)0, /* orig_fdr: original file header pointer */
989 (char *)0, /* name: pointer to filename */
990 0, /* void_type: ptr to aux node for void type */
991 0, /* int_type: ptr to aux node for int type */
992 (scope_t *)0, /* cur_scope: current scope being processed */
993 0, /* file_index: current file # */
994 0, /* nested_scopes: # nested scopes */
995 INIT_VARRAY (char), /* strings: local string varray */
996 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
997 INIT_VARRAY (proc_t), /* procs: procedure varray */
998 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1000 (struct efdr *)0, /* next_file: next file structure */
1002 (struct hash_control *)0, /* str_hash: string hash table */
1003 { 0 }, /* thash_head: type hash table */
1007 static efdr_t *first_file; /* first file descriptor */
1008 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1011 /* Line number information is kept in a list until the assembly is
1013 typedef struct lineno_list {
1014 struct lineno_list *next; /* next element in list */
1015 efdr_t *file; /* file this line is in */
1016 proc_t *proc; /* procedure this line is in */
1017 fragS *frag; /* fragment this line number is in */
1018 unsigned long paddr; /* offset within fragment */
1019 long lineno; /* actual line number */
1022 static lineno_list_t *first_lineno;
1023 static lineno_list_t **last_lineno_ptr = &first_lineno;
1025 /* Sometimes there will be some .loc statements before a .ent. We
1026 keep them in this list so that we can fill in the procedure pointer
1027 after we see the .ent. */
1028 static lineno_list_t *noproc_lineno;
1030 /* Union of various things that are held in pages. */
1031 typedef union page {
1032 char byte [ PAGE_SIZE ];
1033 unsigned char ubyte [ PAGE_SIZE ];
1034 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1035 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1036 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1037 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1038 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1039 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1040 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1041 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1042 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1043 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1044 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1045 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1046 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1047 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1051 /* Structure holding allocation information for small sized structures. */
1052 typedef struct alloc_info {
1053 char *alloc_name; /* name of this allocation type (must be first) */
1054 page_t *cur_page; /* current page being allocated from */
1055 small_free_t free_list; /* current free list if any */
1056 int unallocated; /* number of elements unallocated on page */
1057 int total_alloc; /* total number of allocations */
1058 int total_free; /* total number of frees */
1059 int total_pages; /* total number of pages allocated */
1063 /* Type information collected together. */
1064 typedef struct type_info {
1065 bt_t basic_type; /* basic type */
1066 int orig_type; /* original COFF-based type */
1067 int num_tq; /* # type qualifiers */
1068 int num_dims; /* # dimensions */
1069 int num_sizes; /* # sizes */
1070 int extra_sizes; /* # extra sizes not tied with dims */
1071 tag_t * tag_ptr; /* tag pointer */
1072 int bitfield; /* symbol is a bitfield */
1073 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1074 symint_t dimensions [N_TQ]; /* dimensions for each array */
1075 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1076 struct/union/enum + bitfield size */
1079 /* Pre-initialized type_info struct. */
1080 static const type_info_t type_info_init = {
1081 bt_Nil, /* basic type */
1082 T_NULL, /* original COFF-based type */
1083 0, /* # type qualifiers */
1084 0, /* # dimensions */
1086 0, /* sizes not tied with dims */
1087 NULL, /* ptr to tag */
1089 { /* type qualifiers */
1117 /* Global hash table for the tags table and global table for file
1120 static varray_t file_desc = INIT_VARRAY (efdr_t);
1122 static struct hash_control *tag_hash;
1124 /* Static types for int and void. Also, remember the last function's
1125 type (which is set up when we encounter the declaration for the
1126 function, and used when the end block for the function is emitted. */
1128 static type_info_t int_type_info;
1129 static type_info_t void_type_info;
1130 static type_info_t last_func_type_info;
1131 static symbolS *last_func_sym_value;
1134 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1135 really should use bt_Void, but this causes the current ecoff GDB to
1136 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1137 2.0) doesn't understand it, even though the compiler generates it.
1138 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1139 suite, but for now go with what works.
1141 It would make sense for the .type and .scl directives to use the
1142 ECOFF numbers directly, rather than using the COFF numbers and
1143 mapping them. Unfortunately, this is historically what mips-tfile
1144 expects, and changing gcc now would be a considerable pain (the
1145 native compiler generates debugging information internally, rather
1146 than via the assembler, so it will never use .type or .scl). */
1148 static const bt_t map_coff_types[] = {
1149 bt_Nil, /* T_NULL */
1151 bt_Char, /* T_CHAR */
1152 bt_Short, /* T_SHORT */
1154 bt_Long, /* T_LONG */
1155 bt_Float, /* T_FLOAT */
1156 bt_Double, /* T_DOUBLE */
1157 bt_Struct, /* T_STRUCT */
1158 bt_Union, /* T_UNION */
1159 bt_Enum, /* T_ENUM */
1160 bt_Enum, /* T_MOE */
1161 bt_UChar, /* T_UCHAR */
1162 bt_UShort, /* T_USHORT */
1163 bt_UInt, /* T_UINT */
1164 bt_ULong /* T_ULONG */
1167 /* Convert COFF storage class to ECOFF storage class. */
1168 static const sc_t map_coff_storage[] = {
1169 sc_Nil, /* 0: C_NULL */
1170 sc_Abs, /* 1: C_AUTO auto var */
1171 sc_Undefined, /* 2: C_EXT external */
1172 sc_Data, /* 3: C_STAT static */
1173 sc_Register, /* 4: C_REG register */
1174 sc_Undefined, /* 5: C_EXTDEF ??? */
1175 sc_Text, /* 6: C_LABEL label */
1176 sc_Text, /* 7: C_ULABEL user label */
1177 sc_Info, /* 8: C_MOS member of struct */
1178 sc_Abs, /* 9: C_ARG argument */
1179 sc_Info, /* 10: C_STRTAG struct tag */
1180 sc_Info, /* 11: C_MOU member of union */
1181 sc_Info, /* 12: C_UNTAG union tag */
1182 sc_Info, /* 13: C_TPDEF typedef */
1183 sc_Data, /* 14: C_USTATIC ??? */
1184 sc_Info, /* 15: C_ENTAG enum tag */
1185 sc_Info, /* 16: C_MOE member of enum */
1186 sc_Register, /* 17: C_REGPARM register parameter */
1187 sc_Bits, /* 18; C_FIELD bitfield */
1269 sc_Text, /* 100: C_BLOCK block start/end */
1270 sc_Text, /* 101: C_FCN function start/end */
1271 sc_Info, /* 102: C_EOS end of struct/union/enum */
1272 sc_Nil, /* 103: C_FILE file start */
1273 sc_Nil, /* 104: C_LINE line number */
1274 sc_Nil, /* 105: C_ALIAS combined type info */
1275 sc_Nil, /* 106: C_HIDDEN ??? */
1278 /* Convert COFF storage class to ECOFF symbol type. */
1279 static const st_t map_coff_sym_type[] = {
1280 st_Nil, /* 0: C_NULL */
1281 st_Local, /* 1: C_AUTO auto var */
1282 st_Global, /* 2: C_EXT external */
1283 st_Static, /* 3: C_STAT static */
1284 st_Local, /* 4: C_REG register */
1285 st_Global, /* 5: C_EXTDEF ??? */
1286 st_Label, /* 6: C_LABEL label */
1287 st_Label, /* 7: C_ULABEL user label */
1288 st_Member, /* 8: C_MOS member of struct */
1289 st_Param, /* 9: C_ARG argument */
1290 st_Block, /* 10: C_STRTAG struct tag */
1291 st_Member, /* 11: C_MOU member of union */
1292 st_Block, /* 12: C_UNTAG union tag */
1293 st_Typedef, /* 13: C_TPDEF typedef */
1294 st_Static, /* 14: C_USTATIC ??? */
1295 st_Block, /* 15: C_ENTAG enum tag */
1296 st_Member, /* 16: C_MOE member of enum */
1297 st_Param, /* 17: C_REGPARM register parameter */
1298 st_Member, /* 18; C_FIELD bitfield */
1380 st_Block, /* 100: C_BLOCK block start/end */
1381 st_Proc, /* 101: C_FCN function start/end */
1382 st_End, /* 102: C_EOS end of struct/union/enum */
1383 st_File, /* 103: C_FILE file start */
1384 st_Nil, /* 104: C_LINE line number */
1385 st_Nil, /* 105: C_ALIAS combined type info */
1386 st_Nil, /* 106: C_HIDDEN ??? */
1390 /* Keep track of different sized allocation requests. */
1391 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1393 /* Various statics. */
1394 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1395 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1396 static proc_t *first_proc_ptr = (proc_t *) 0; /* first 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));
1480 static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int));
1482 /* This function should be called when the assembler starts up. */
1485 ecoff_read_begin_hook ()
1487 tag_hash = hash_new ();
1488 top_tag_head = allocate_thead ();
1489 top_tag_head->first_tag = (tag_t *) NULL;
1490 top_tag_head->free = (thead_t *) NULL;
1491 top_tag_head->prev = cur_tag_head;
1492 cur_tag_head = top_tag_head;
1495 /* This function should be called when a symbol is created. */
1498 ecoff_symbol_new_hook (symbolP)
1501 if (cur_file_ptr == (efdr_t *) NULL)
1502 add_file ((const char *) NULL, 0);
1503 symbolP->ecoff_file = cur_file_ptr;
1504 symbolP->ecoff_symbol = NULL;
1505 symbolP->ecoff_extern_size = 0;
1508 /* Add a page to a varray object. */
1511 add_varray_page (vp)
1512 varray_t *vp; /* varray to add page to */
1514 vlinks_t *new_links = allocate_vlinks ();
1517 if (vp->object_size > 1)
1518 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1521 new_links->datum = allocate_page ();
1523 alloc_counts[(int)alloc_type_varray].total_alloc++;
1524 alloc_counts[(int)alloc_type_varray].total_pages++;
1526 new_links->start_index = vp->num_allocated;
1527 vp->objects_last_page = 0;
1529 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1530 vp->first = vp->last = new_links;
1532 { /* 2nd or greater allocation */
1533 new_links->prev = vp->last;
1534 vp->last->next = new_links;
1535 vp->last = new_links;
1539 /* Add a string (and null pad) to one of the string tables. */
1542 add_string (vp, hash_tbl, str, ret_hash)
1543 varray_t *vp; /* string obstack */
1544 struct hash_control *hash_tbl; /* ptr to hash table */
1545 const char *str; /* string */
1546 shash_t **ret_hash; /* return hash pointer */
1548 register unsigned long len = strlen (str);
1549 register shash_t *hash_ptr;
1551 if (len >= PAGE_USIZE)
1552 as_fatal ("String too big (%lu bytes)", len);
1554 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1555 if (hash_ptr == (shash_t *) NULL)
1557 register const char *err;
1559 if (vp->objects_last_page + len >= PAGE_USIZE)
1562 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1563 add_varray_page (vp);
1566 hash_ptr = allocate_shash ();
1567 hash_ptr->indx = vp->num_allocated;
1569 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1571 vp->objects_last_page += len + 1;
1572 vp->num_allocated += len + 1;
1574 strcpy (hash_ptr->string, str);
1576 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1578 as_fatal ("Inserting \"%s\" into string hash table: %s",
1582 if (ret_hash != (shash_t **) NULL)
1583 *ret_hash = hash_ptr;
1585 return hash_ptr->indx;
1588 /* Add debugging information for a symbol. */
1591 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1592 const char *str; /* symbol name */
1593 st_t type; /* symbol type */
1594 sc_t storage; /* storage class */
1595 symbolS *sym_value; /* associated symbol. */
1596 symint_t value; /* value of symbol */
1597 symint_t indx; /* index to local/aux. syms */
1600 register scope_t *pscope;
1601 register thead_t *ptag_head;
1602 register tag_t *ptag;
1603 register tag_t *ptag_next;
1604 register varray_t *vp;
1605 register int scope_delta = 0;
1606 shash_t *hash_ptr = (shash_t *) NULL;
1608 if (cur_file_ptr == (efdr_t *) NULL)
1609 as_fatal ("no current file pointer");
1611 vp = &cur_file_ptr->symbols;
1613 if (vp->objects_last_page == vp->objects_per_page)
1614 add_varray_page (vp);
1616 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1618 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1619 psym->name = S_GET_NAME (sym_value);
1622 psym->as_sym = sym_value;
1623 if (sym_value != (symbolS *) NULL)
1624 sym_value->ecoff_symbol = psym;
1625 psym->file_ptr = cur_file_ptr;
1626 psym->proc_ptr = cur_proc_ptr;
1627 psym->begin_ptr = (localsym_t *) NULL;
1628 psym->index_ptr = (aux_t *) NULL;
1629 psym->forward_ref = (forward_t *) NULL;
1630 psym->sym_index = -1;
1631 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1632 psym->ecoff_sym.asym.value = value;
1633 psym->ecoff_sym.asym.st = (unsigned) type;
1634 psym->ecoff_sym.asym.sc = (unsigned) storage;
1635 psym->ecoff_sym.asym.index = indx;
1637 /* If there is an associated symbol, we wait until the end of the
1638 assembly before deciding where to put the name (it may be just an
1639 external symbol). Otherwise, this is just a debugging symbol and
1640 the name should go with the current file. */
1641 if (sym_value == (symbolS *) NULL)
1642 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1644 : add_string (&cur_file_ptr->strings,
1645 cur_file_ptr->str_hash,
1649 ++vp->num_allocated;
1651 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1654 /* Save the symbol within the hash table if this is a static
1655 item, and it has a name. */
1656 if (hash_ptr != (shash_t *) NULL
1657 && (type == st_Global || type == st_Static || type == st_Label
1658 || type == st_Proc || type == st_StaticProc))
1659 hash_ptr->sym_ptr = psym;
1661 /* push or pop a scope if appropriate. */
1667 case st_File: /* beginning of file */
1668 case st_Proc: /* procedure */
1669 case st_StaticProc: /* static procedure */
1670 case st_Block: /* begin scope */
1671 pscope = allocate_scope ();
1672 pscope->prev = cur_file_ptr->cur_scope;
1673 pscope->lsym = psym;
1674 pscope->type = type;
1675 cur_file_ptr->cur_scope = pscope;
1677 if (type != st_File)
1680 /* For every block type except file, struct, union, or
1681 enumeration blocks, push a level on the tag stack. We omit
1682 file types, so that tags can span file boundaries. */
1683 if (type != st_File && storage != sc_Info)
1685 ptag_head = allocate_thead ();
1686 ptag_head->first_tag = 0;
1687 ptag_head->prev = cur_tag_head;
1688 cur_tag_head = ptag_head;
1693 pscope = cur_file_ptr->cur_scope;
1694 if (pscope == (scope_t *) NULL)
1695 as_fatal ("too many st_End's");
1698 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1700 psym->begin_ptr = pscope->lsym;
1702 if (begin_type != st_File)
1705 /* Except for file, structure, union, or enumeration end
1706 blocks remove all tags created within this scope. */
1707 if (begin_type != st_File && storage != sc_Info)
1709 ptag_head = cur_tag_head;
1710 cur_tag_head = ptag_head->prev;
1712 for (ptag = ptag_head->first_tag;
1713 ptag != (tag_t *) NULL;
1716 if (ptag->forward_ref != (forward_t *) NULL)
1717 add_unknown_tag (ptag);
1719 ptag_next = ptag->same_block;
1720 ptag->hash_ptr->tag_ptr = ptag->same_name;
1724 free_thead (ptag_head);
1727 cur_file_ptr->cur_scope = pscope->prev;
1729 /* block begin gets next sym #. This is set when we know
1730 the symbol index value. */
1732 /* Functions push two or more aux words as follows:
1733 1st word: index+1 of the end symbol (filled in later).
1734 2nd word: type of the function (plus any aux words needed).
1735 Also, tie the external pointer back to the function begin symbol. */
1736 if (begin_type != st_File && begin_type != st_Block)
1739 varray_t *svp = &cur_file_ptr->aux_syms;
1741 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1742 pscope->lsym->index_ptr =
1743 &svp->last->datum->aux[svp->objects_last_page - 1];
1744 ty = add_aux_sym_tir (&last_func_type_info,
1746 &cur_file_ptr->thash_head[0]);
1748 /* This seems to be unnecessary. I'm not even sure what it is
1749 * intended to do. It's from mips-tfile.
1750 * if (last_func_sym_value != (symbolS *) NULL)
1752 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1753 * last_func_sym_value->index = ty;
1758 free_scope (pscope);
1762 cur_file_ptr->nested_scopes += scope_delta;
1765 if (debug && type != st_File
1766 && (debug > 2 || type == st_Block || type == st_End
1767 || type == st_Proc || type == st_StaticProc))
1769 char *sc_str = sc_to_string (storage);
1770 char *st_str = st_to_string (type);
1771 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1774 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1775 value, depth, sc_str);
1777 if (str_start && str_end_p1 - str_start > 0)
1778 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1781 unsigned long len = strlen (st_str);
1782 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1790 /* Add an auxiliary symbol (passing a symint). This is actually used
1791 for integral aux types, not just symints. */
1794 add_aux_sym_symint (aux_word)
1795 symint_t aux_word; /* auxiliary information word */
1797 register varray_t *vp;
1798 register aux_t *aux_ptr;
1800 if (cur_file_ptr == (efdr_t *) NULL)
1801 as_fatal ("no current file pointer");
1803 vp = &cur_file_ptr->aux_syms;
1805 if (vp->objects_last_page == vp->objects_per_page)
1806 add_varray_page (vp);
1808 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1809 aux_ptr->type = aux_isym;
1810 aux_ptr->data.isym = aux_word;
1812 return vp->num_allocated++;
1816 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1819 add_aux_sym_rndx (file_index, sym_index)
1823 register varray_t *vp;
1824 register aux_t *aux_ptr;
1826 if (cur_file_ptr == (efdr_t *) NULL)
1827 as_fatal ("no current file pointer");
1829 vp = &cur_file_ptr->aux_syms;
1831 if (vp->objects_last_page == vp->objects_per_page)
1832 add_varray_page (vp);
1834 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1835 aux_ptr->type = aux_rndx;
1836 aux_ptr->data.rndx.rfd = file_index;
1837 aux_ptr->data.rndx.index = sym_index;
1839 return vp->num_allocated++;
1842 /* Add an auxiliary symbol (passing the basic type and possibly
1843 type qualifiers). */
1846 add_aux_sym_tir (t, state, hash_tbl)
1847 type_info_t *t; /* current type information */
1848 hash_state_t state; /* whether to hash type or not */
1849 thash_t **hash_tbl; /* pointer to hash table to use */
1851 register varray_t *vp;
1852 register aux_t *aux_ptr;
1853 static AUXU init_aux;
1858 if (cur_file_ptr == (efdr_t *) NULL)
1859 as_fatal ("no current file pointer");
1861 vp = &cur_file_ptr->aux_syms;
1864 aux.ti.bt = (int) t->basic_type;
1865 aux.ti.continued = 0;
1866 aux.ti.fBitfield = t->bitfield;
1868 aux.ti.tq0 = (int) t->type_qualifiers[0];
1869 aux.ti.tq1 = (int) t->type_qualifiers[1];
1870 aux.ti.tq2 = (int) t->type_qualifiers[2];
1871 aux.ti.tq3 = (int) t->type_qualifiers[3];
1872 aux.ti.tq4 = (int) t->type_qualifiers[4];
1873 aux.ti.tq5 = (int) t->type_qualifiers[5];
1876 /* For anything that adds additional information, we must not hash,
1877 so check here, and reset our state. */
1879 if (state != hash_no
1880 && (t->type_qualifiers[0] == tq_Array
1881 || t->type_qualifiers[1] == tq_Array
1882 || t->type_qualifiers[2] == tq_Array
1883 || t->type_qualifiers[3] == tq_Array
1884 || t->type_qualifiers[4] == tq_Array
1885 || t->type_qualifiers[5] == tq_Array
1886 || t->basic_type == bt_Struct
1887 || t->basic_type == bt_Union
1888 || t->basic_type == bt_Enum
1890 || t->num_dims > 0))
1893 /* See if we can hash this type, and save some space, but some types
1894 can't be hashed (because they contain arrays or continuations),
1895 and others can be put into the hash list, but cannot use existing
1896 types because other aux entries precede this one. */
1898 if (state != hash_no)
1900 register thash_t *hash_ptr;
1901 register symint_t hi;
1903 hi = aux.isym & ((1 << HASHBITS) - 1);
1906 for (hash_ptr = hash_tbl[hi];
1907 hash_ptr != (thash_t *)0;
1908 hash_ptr = hash_ptr->next)
1910 if (aux.isym == hash_ptr->type.isym)
1914 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1915 return hash_ptr->indx;
1917 if (hash_ptr == (thash_t *) NULL)
1919 hash_ptr = allocate_thash ();
1920 hash_ptr->next = hash_tbl[hi];
1921 hash_ptr->type = aux;
1922 hash_ptr->indx = vp->num_allocated;
1923 hash_tbl[hi] = hash_ptr;
1927 /* Everything is set up, add the aux symbol. */
1928 if (vp->objects_last_page == vp->objects_per_page)
1929 add_varray_page (vp);
1931 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1932 aux_ptr->type = aux_tir;
1933 aux_ptr->data = aux;
1935 ret = vp->num_allocated++;
1937 /* Add bitfield length if it exists.
1939 NOTE: Mips documentation claims bitfield goes at the end of the
1940 AUX record, but the DECstation compiler emits it here.
1941 (This would only make a difference for enum bitfields.)
1943 Also note: We use the last size given since gcc may emit 2
1944 for an enum bitfield. */
1947 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1950 /* Add tag information if needed. Structure, union, and enum
1951 references add 2 aux symbols: a [file index, symbol index]
1952 pointer to the structure type, and the current file index. */
1954 if (t->basic_type == bt_Struct
1955 || t->basic_type == bt_Union
1956 || t->basic_type == bt_Enum)
1958 register symint_t file_index = t->tag_ptr->ifd;
1959 register localsym_t *sym = t->tag_ptr->sym;
1960 register forward_t *forward_ref = allocate_forward ();
1962 if (sym != (localsym_t *) NULL)
1964 forward_ref->next = sym->forward_ref;
1965 sym->forward_ref = forward_ref;
1969 forward_ref->next = t->tag_ptr->forward_ref;
1970 t->tag_ptr->forward_ref = forward_ref;
1973 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1974 forward_ref->index_ptr
1975 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1977 (void) add_aux_sym_symint (file_index);
1978 forward_ref->ifd_ptr
1979 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1982 /* Add information about array bounds if they exist. */
1983 for (i = 0; i < t->num_dims; i++)
1985 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1986 cur_file_ptr->int_type);
1988 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1989 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1990 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1991 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1993 : (t->sizes[i] * 8) / t->dimensions[i]);
1996 /* NOTE: Mips documentation claims that the bitfield width goes here.
1997 But it needs to be emitted earlier. */
2002 /* Add a tag to the tag table (unless it already exists). */
2005 get_tag (tag, sym, basic_type)
2006 const char *tag; /* tag name */
2007 localsym_t *sym; /* tag start block */
2008 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2014 if (cur_file_ptr == (efdr_t *) NULL)
2015 as_fatal ("no current file pointer");
2017 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2019 if (hash_ptr != (shash_t *) NULL
2020 && hash_ptr->tag_ptr != (tag_t *) NULL)
2022 tag_ptr = hash_ptr->tag_ptr;
2023 if (sym != (localsym_t *) NULL)
2025 tag_ptr->basic_type = basic_type;
2026 tag_ptr->ifd = cur_file_ptr->file_index;
2032 if (hash_ptr == (shash_t *) NULL)
2036 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2038 hash_ptr = allocate_shash ();
2039 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2041 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2043 hash_ptr->string = perm;
2046 tag_ptr = allocate_tag ();
2047 tag_ptr->forward_ref = (forward_t *) NULL;
2048 tag_ptr->hash_ptr = hash_ptr;
2049 tag_ptr->same_name = hash_ptr->tag_ptr;
2050 tag_ptr->basic_type = basic_type;
2052 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2054 : cur_file_ptr->file_index);
2055 tag_ptr->same_block = cur_tag_head->first_tag;
2057 cur_tag_head->first_tag = tag_ptr;
2058 hash_ptr->tag_ptr = tag_ptr;
2063 /* Add an unknown {struct, union, enum} tag. */
2066 add_unknown_tag (ptag)
2067 tag_t *ptag; /* pointer to tag information */
2069 shash_t *hash_ptr = ptag->hash_ptr;
2070 char *name = hash_ptr->string;
2077 char *agg_type = "{unknown aggregate type}";
2078 switch (ptag->basic_type)
2080 case bt_Struct: agg_type = "struct"; break;
2081 case bt_Union: agg_type = "union"; break;
2082 case bt_Enum: agg_type = "enum"; break;
2086 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2087 hash_ptr->len, name_start);
2091 sym = add_ecoff_symbol (name,
2098 (void) add_ecoff_symbol (name,
2105 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2107 *pf = ptag->forward_ref;
2110 /* Add a procedure to the current file's list of procedures, and record
2111 this is the current procedure. */
2114 add_procedure (func)
2115 char *func; /* func name */
2117 register varray_t *vp;
2118 register proc_t *new_proc_ptr;
2122 fputc ('\n', stderr);
2125 if (cur_file_ptr == (efdr_t *) NULL)
2126 as_fatal ("no current file pointer");
2128 vp = &cur_file_ptr->procs;
2130 if (vp->objects_last_page == vp->objects_per_page)
2131 add_varray_page (vp);
2133 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2135 if (first_proc_ptr == (proc_t *) NULL)
2136 first_proc_ptr = new_proc_ptr;
2138 vp->num_allocated++;
2140 new_proc_ptr->pdr.isym = -1;
2141 new_proc_ptr->pdr.iline = -1;
2142 new_proc_ptr->pdr.lnLow = -1;
2143 new_proc_ptr->pdr.lnHigh = -1;
2145 /* Push the start of the function. */
2146 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2147 symbol_find_or_make (func),
2148 (symint_t) 0, (symint_t) 0);
2152 /* Fill in the linenos preceding the .ent, if any. */
2153 if (noproc_lineno != (lineno_list_t *) NULL)
2157 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2158 l->proc = new_proc_ptr;
2159 *last_lineno_ptr = noproc_lineno;
2160 while (*last_lineno_ptr != NULL)
2161 last_lineno_ptr = &(*last_lineno_ptr)->next;
2162 noproc_lineno = (lineno_list_t *) NULL;
2166 /* Add a new filename, and set up all of the file relative
2167 virtual arrays (strings, symbols, aux syms, etc.). Record
2168 where the current file structure lives. */
2171 add_file (file_name, indx)
2172 const char *file_name; /* file name */
2175 register int first_ch;
2176 register efdr_t *fil_ptr;
2180 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2183 /* If the file name is NULL, then no .file symbol appeared, and we
2184 want to use the actual file name. */
2185 if (file_name == (const char *) NULL)
2189 if (first_file != (efdr_t *) NULL)
2190 as_fatal ("fake .file after real one");
2191 as_where (&file, (unsigned int *) NULL);
2192 file_name = (const char *) file;
2193 generate_asm_line_stab = 1;
2196 generate_asm_line_stab = 0;
2200 listing_source_file (file_name);
2203 /* If we're creating stabs, then we don't actually make a new FDR.
2204 Instead, we just create a stabs symbol. */
2207 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2208 symbol_new ("L0\001", now_seg,
2209 (valueT) frag_now_fix (),
2211 0, ECOFF_MARK_STAB (N_SOL));
2215 first_ch = *file_name;
2217 /* See if the file has already been created. */
2218 for (fil_ptr = first_file;
2219 fil_ptr != (efdr_t *) NULL;
2220 fil_ptr = fil_ptr->next_file)
2222 if (first_ch == fil_ptr->name[0]
2223 && strcmp (file_name, fil_ptr->name) == 0)
2225 cur_file_ptr = fil_ptr;
2230 /* If this is a new file, create it. */
2231 if (fil_ptr == (efdr_t *) NULL)
2233 if (file_desc.objects_last_page == file_desc.objects_per_page)
2234 add_varray_page (&file_desc);
2236 fil_ptr = cur_file_ptr =
2237 &file_desc.last->datum->file[file_desc.objects_last_page++];
2238 *fil_ptr = init_file;
2240 fil_ptr->file_index = current_file_idx++;
2241 ++file_desc.num_allocated;
2243 /* Allocate the string hash table. */
2244 fil_ptr->str_hash = hash_new ();
2246 /* Make sure 0 byte in string table is null */
2247 add_string (&fil_ptr->strings,
2252 if (strlen (file_name) > PAGE_USIZE - 2)
2253 as_fatal ("Filename goes over one page boundary.");
2255 /* Push the start of the filename. We assume that the filename
2256 will be stored at string offset 1. */
2257 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2259 (symint_t) 0, (symint_t) 0);
2260 fil_ptr->fdr.rss = 1;
2261 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2263 /* Update the linked list of file descriptors. */
2264 *last_file_ptr = fil_ptr;
2265 last_file_ptr = &fil_ptr->next_file;
2267 /* Add void & int types to the file (void should be first to catch
2268 errant 0's within the index fields). */
2269 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2271 &cur_file_ptr->thash_head[0]);
2273 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2275 &cur_file_ptr->thash_head[0]);
2276 if (generate_asm_line_stab)
2278 static char itstr[] = "int:t1=r1;-2147483648;2147483647;";
2280 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2281 symbol_new ("L0\001", now_seg,
2282 (valueT) frag_now_fix (),
2284 0, ECOFF_MARK_STAB (N_SO));
2285 (void) add_ecoff_symbol (itstr, st_Nil, sc_Nil,
2286 (symbolS *)NULL, 0, ECOFF_MARK_STAB (N_LSYM));
2293 /* Convert storage class to string. */
2296 sc_to_string(storage_class)
2299 switch(storage_class)
2301 case sc_Nil: return "Nil,";
2302 case sc_Text: return "Text,";
2303 case sc_Data: return "Data,";
2304 case sc_Bss: return "Bss,";
2305 case sc_Register: return "Register,";
2306 case sc_Abs: return "Abs,";
2307 case sc_Undefined: return "Undefined,";
2308 case sc_CdbLocal: return "CdbLocal,";
2309 case sc_Bits: return "Bits,";
2310 case sc_CdbSystem: return "CdbSystem,";
2311 case sc_RegImage: return "RegImage,";
2312 case sc_Info: return "Info,";
2313 case sc_UserStruct: return "UserStruct,";
2314 case sc_SData: return "SData,";
2315 case sc_SBss: return "SBss,";
2316 case sc_RData: return "RData,";
2317 case sc_Var: return "Var,";
2318 case sc_Common: return "Common,";
2319 case sc_SCommon: return "SCommon,";
2320 case sc_VarRegister: return "VarRegister,";
2321 case sc_Variant: return "Variant,";
2322 case sc_SUndefined: return "SUndefined,";
2323 case sc_Init: return "Init,";
2324 case sc_Max: return "Max,";
2334 /* Convert symbol type to string. */
2337 st_to_string(symbol_type)
2342 case st_Nil: return "Nil,";
2343 case st_Global: return "Global,";
2344 case st_Static: return "Static,";
2345 case st_Param: return "Param,";
2346 case st_Local: return "Local,";
2347 case st_Label: return "Label,";
2348 case st_Proc: return "Proc,";
2349 case st_Block: return "Block,";
2350 case st_End: return "End,";
2351 case st_Member: return "Member,";
2352 case st_Typedef: return "Typedef,";
2353 case st_File: return "File,";
2354 case st_RegReloc: return "RegReloc,";
2355 case st_Forward: return "Forward,";
2356 case st_StaticProc: return "StaticProc,";
2357 case st_Constant: return "Constant,";
2358 case st_Str: return "String,";
2359 case st_Number: return "Number,";
2360 case st_Expr: return "Expr,";
2361 case st_Type: return "Type,";
2362 case st_Max: return "Max,";
2370 /* Parse .begin directives which have a label as the first argument
2371 which gives the location of the start of the block. */
2374 ecoff_directive_begin (ignore)
2380 if (cur_file_ptr == (efdr_t *) NULL)
2382 as_warn (".begin directive without a preceding .file directive");
2383 demand_empty_rest_of_line ();
2387 if (cur_proc_ptr == (proc_t *) NULL)
2389 as_warn (".begin directive without a preceding .ent directive");
2390 demand_empty_rest_of_line ();
2394 name = input_line_pointer;
2395 name_end = get_symbol_end ();
2397 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2398 symbol_find_or_make (name),
2399 (symint_t) 0, (symint_t) 0);
2401 *input_line_pointer = name_end;
2403 /* The line number follows, but we don't use it. */
2404 (void) get_absolute_expression ();
2405 demand_empty_rest_of_line ();
2408 /* Parse .bend directives which have a label as the first argument
2409 which gives the location of the end of the block. */
2412 ecoff_directive_bend (ignore)
2419 if (cur_file_ptr == (efdr_t *) NULL)
2421 as_warn (".bend directive without a preceding .file directive");
2422 demand_empty_rest_of_line ();
2426 if (cur_proc_ptr == (proc_t *) NULL)
2428 as_warn (".bend directive without a preceding .ent directive");
2429 demand_empty_rest_of_line ();
2433 name = input_line_pointer;
2434 name_end = get_symbol_end ();
2436 /* The value is the distance between the .bend directive and the
2437 corresponding symbol. We fill in the offset when we write out
2439 endsym = symbol_find (name);
2440 if (endsym == (symbolS *) NULL)
2441 as_warn (".bend directive names unknown symbol");
2443 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2444 (symint_t) 0, (symint_t) 0);
2446 *input_line_pointer = name_end;
2448 /* The line number follows, but we don't use it. */
2449 (void) get_absolute_expression ();
2450 demand_empty_rest_of_line ();
2453 /* COFF debugging information is provided as a series of directives
2454 (.def, .scl, etc.). We build up information as we read the
2455 directives in the following static variables, and file it away when
2456 we reach the .endef directive. */
2457 static char *coff_sym_name;
2458 static type_info_t coff_type;
2459 static sc_t coff_storage_class;
2460 static st_t coff_symbol_typ;
2461 static int coff_is_function;
2462 static char *coff_tag;
2463 static valueT coff_value;
2464 symbolS *coff_sym_value;
2465 static int coff_inside_enumeration;
2467 /* Handle a .def directive: start defining a symbol. */
2470 ecoff_directive_def (ignore)
2478 name = input_line_pointer;
2479 name_end = get_symbol_end ();
2481 if (coff_sym_name != (char *) NULL)
2482 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2483 else if (*name == '\0')
2484 as_warn ("Empty symbol name in .def; ignored");
2487 if (coff_sym_name != (char *) NULL)
2488 free (coff_sym_name);
2489 if (coff_tag != (char *) NULL)
2491 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2492 strcpy (coff_sym_name, name);
2493 coff_type = type_info_init;
2494 coff_storage_class = sc_Nil;
2495 coff_symbol_typ = st_Nil;
2496 coff_is_function = 0;
2497 coff_tag = (char *) NULL;
2499 coff_sym_value = (symbolS *) NULL;
2502 *input_line_pointer = name_end;
2504 demand_empty_rest_of_line ();
2507 /* Handle a .dim directive, used to give dimensions for an array. The
2508 arguments are comma separated numbers. mips-tfile assumes that
2509 there will not be more than 6 dimensions, and gdb won't read any
2510 more than that anyhow, so I will also make that assumption. */
2513 ecoff_directive_dim (ignore)
2519 if (coff_sym_name == (char *) NULL)
2521 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2522 demand_empty_rest_of_line ();
2526 for (i = 0; i < N_TQ; i++)
2529 dimens[i] = get_absolute_expression ();
2530 if (*input_line_pointer == ',')
2531 ++input_line_pointer;
2534 if (*input_line_pointer != '\n'
2535 && *input_line_pointer != ';')
2536 as_warn ("Badly formed .dim directive");
2544 /* The dimensions are stored away in reverse order. */
2547 if (coff_type.num_dims >= N_TQ)
2549 as_warn ("Too many .dim entries");
2552 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2553 ++coff_type.num_dims;
2556 demand_empty_rest_of_line ();
2559 /* Handle a .scl directive, which sets the COFF storage class of the
2563 ecoff_directive_scl (ignore)
2568 if (coff_sym_name == (char *) NULL)
2570 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2571 demand_empty_rest_of_line ();
2575 val = get_absolute_expression ();
2577 coff_symbol_typ = map_coff_sym_type[val];
2578 coff_storage_class = map_coff_storage[val];
2580 demand_empty_rest_of_line ();
2583 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2584 .size can have multiple arguments. We humor it, although gcc will
2585 never generate more than one argument. */
2588 ecoff_directive_size (ignore)
2594 if (coff_sym_name == (char *) NULL)
2596 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2597 demand_empty_rest_of_line ();
2601 for (i = 0; i < N_TQ; i++)
2604 sizes[i] = get_absolute_expression ();
2605 if (*input_line_pointer == ',')
2606 ++input_line_pointer;
2609 if (*input_line_pointer != '\n'
2610 && *input_line_pointer != ';')
2611 as_warn ("Badly formed .size directive");
2619 /* The sizes are stored away in reverse order. */
2622 if (coff_type.num_sizes >= N_TQ)
2624 as_warn ("Too many .size entries");
2627 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2628 ++coff_type.num_sizes;
2631 demand_empty_rest_of_line ();
2634 /* Handle the .type directive, which gives the COFF type of the
2638 ecoff_directive_type (ignore)
2645 if (coff_sym_name == (char *) NULL)
2647 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2648 demand_empty_rest_of_line ();
2652 val = get_absolute_expression ();
2654 coff_type.orig_type = BTYPE (val);
2655 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2657 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2658 while (val &~ N_BTMASK)
2660 if (tq_ptr == &coff_type.type_qualifiers[0])
2662 as_warn ("Too derived values in .type argument");
2667 else if (ISFCN (val))
2668 *--tq_ptr = tq_Proc;
2669 else if (ISARY (val))
2670 *--tq_ptr = tq_Array;
2672 as_fatal ("Unrecognized .type argument");
2677 tq_shft = &coff_type.type_qualifiers[0];
2678 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2679 *tq_shft++ = *tq_ptr++;
2681 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2683 /* If this is a function, ignore it, so that we don't get two
2684 entries (one from the .ent, and one for the .def that
2685 precedes it). Save the type information so that the end
2686 block can properly add it after the begin block index. For
2687 MIPS knows what reason, we must strip off the function type
2689 coff_is_function = 1;
2690 tq_shft[-1] = tq_Nil;
2693 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2694 *tq_shft++ = tq_Nil;
2696 demand_empty_rest_of_line ();
2699 /* Handle the .tag directive, which gives the name of a structure,
2703 ecoff_directive_tag (ignore)
2709 if (coff_sym_name == (char *) NULL)
2711 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2712 demand_empty_rest_of_line ();
2716 name = input_line_pointer;
2717 name_end = get_symbol_end ();
2719 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2720 strcpy (coff_tag, name);
2722 *input_line_pointer = name_end;
2724 demand_empty_rest_of_line ();
2727 /* Handle the .val directive, which gives the value of the symbol. It
2728 may be the name of a static or global symbol. */
2731 ecoff_directive_val (ignore)
2734 if (coff_sym_name == (char *) NULL)
2736 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2737 demand_empty_rest_of_line ();
2741 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2742 coff_value = get_absolute_expression ();
2748 name = input_line_pointer;
2749 name_end = get_symbol_end ();
2751 if (strcmp (name, ".") == 0)
2752 as_warn ("`.val .' not supported");
2754 coff_sym_value = symbol_find_or_make (name);
2756 *input_line_pointer = name_end;
2758 /* FIXME: gcc can generate address expressions here in unusual
2759 cases (search for "obscure" in sdbout.c), although this is
2760 very unlikely for a MIPS chip. */
2763 demand_empty_rest_of_line ();
2766 /* Handle the .endef directive, which terminates processing of COFF
2767 debugging information for a symbol. */
2770 ecoff_directive_endef (ignore)
2777 demand_empty_rest_of_line ();
2779 if (coff_sym_name == (char *) NULL)
2781 as_warn (".endef pseudo-op used before .def; ignored");
2785 name = coff_sym_name;
2786 coff_sym_name = (char *) NULL;
2788 /* If the symbol is a static or external, we have already gotten the
2789 appropriate type and class, so make sure we don't override those
2790 values. This is needed because there are some type and classes
2791 that are not in COFF, such as short data, etc. */
2792 if (coff_sym_value != (symbolS *) NULL)
2794 coff_symbol_typ = st_Nil;
2795 coff_storage_class = sc_Nil;
2798 coff_type.extra_sizes = coff_tag != (char *) NULL;
2799 if (coff_type.num_dims > 0)
2801 int diff = coff_type.num_dims - coff_type.num_sizes;
2802 int i = coff_type.num_dims - 1;
2805 if (coff_type.num_sizes != 1 || diff < 0)
2807 as_warn ("Bad COFF debugging info");
2811 /* If this is an array, make sure the same number of dimensions
2812 and sizes were passed, creating extra sizes for multiply
2813 dimensioned arrays if not passed. */
2814 coff_type.extra_sizes = 0;
2817 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2820 coff_type.sizes[j] = (((j - diff) >= 0)
2821 ? coff_type.sizes[j - diff]
2826 coff_type.num_sizes = i + 1;
2827 for (i--; i >= 0; i--)
2828 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2829 / coff_type.dimensions[i + 1]);
2832 else if (coff_symbol_typ == st_Member
2833 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2835 /* Is this a bitfield? This is indicated by a structure memeber
2836 having a size field that isn't an array. */
2837 coff_type.bitfield = 1;
2840 /* Except for enumeration members & begin/ending of scopes, put the
2841 type word in the aux. symbol table. */
2842 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2844 else if (coff_inside_enumeration)
2845 indx = cur_file_ptr->void_type;
2848 if (coff_type.basic_type == bt_Struct
2849 || coff_type.basic_type == bt_Union
2850 || coff_type.basic_type == bt_Enum)
2852 if (coff_tag == (char *) NULL)
2854 as_warn ("No tag specified for %s", name);
2858 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2859 coff_type.basic_type);
2862 if (coff_is_function)
2864 last_func_type_info = coff_type;
2865 last_func_sym_value = coff_sym_value;
2869 indx = add_aux_sym_tir (&coff_type,
2871 &cur_file_ptr->thash_head[0]);
2874 /* Do any last minute adjustments that are necessary. */
2875 switch (coff_symbol_typ)
2880 /* For the beginning of structs, unions, and enumerations, the
2881 size info needs to be passed in the value field. */
2883 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2886 as_warn ("Bad COFF debugging information");
2890 coff_value = coff_type.sizes[0];
2892 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2895 /* For the end of structs, unions, and enumerations, omit the
2896 name which is always ".eos". This needs to be done last, so
2897 that any error reporting above gives the correct name. */
2900 name = (char *) NULL;
2902 coff_inside_enumeration = 0;
2905 /* Members of structures and unions that aren't bitfields, need
2906 to adjust the value from a byte offset to a bit offset.
2907 Members of enumerations do not have the value adjusted, and
2908 can be distinguished by indx == indexNil. For enumerations,
2909 update the maximum enumeration value. */
2911 if (! coff_type.bitfield && ! coff_inside_enumeration)
2917 /* Add the symbol. */
2918 sym = add_ecoff_symbol (name,
2922 (symint_t) coff_value,
2925 /* deal with struct, union, and enum tags. */
2926 if (coff_symbol_typ == st_Block)
2928 /* Create or update the tag information. */
2929 tag_t *tag_ptr = get_tag (name,
2931 coff_type.basic_type);
2934 /* Remember any forward references. */
2935 for (pf = &sym->forward_ref;
2936 *pf != (forward_t *) NULL;
2939 *pf = tag_ptr->forward_ref;
2940 tag_ptr->forward_ref = (forward_t *) NULL;
2944 /* Parse .end directives. */
2947 ecoff_directive_end (ignore)
2955 if (cur_file_ptr == (efdr_t *) NULL)
2957 as_warn (".end directive without a preceding .file directive");
2958 demand_empty_rest_of_line ();
2962 if (cur_proc_ptr == (proc_t *) NULL)
2964 as_warn (".end directive without a preceding .ent directive");
2965 demand_empty_rest_of_line ();
2969 name = input_line_pointer;
2970 name_end = get_symbol_end ();
2973 if (! is_name_beginner (ch))
2975 as_warn (".end directive has no name");
2976 *input_line_pointer = name_end;
2977 demand_empty_rest_of_line ();
2981 /* The value is the distance between the .end directive and the
2982 corresponding symbol. We create a fake symbol to hold the
2983 current location, and put in the offset when we write out the
2985 ent = symbol_find (name);
2986 if (ent == (symbolS *) NULL)
2987 as_warn (".end directive names unknown symbol");
2990 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
2991 symbol_new ("L0\001", now_seg,
2992 (valueT) frag_now_fix (),
2994 (symint_t) 0, (symint_t) 0);
2995 if (generate_asm_line_stab)
2999 n = xmalloc (strlen (name) + 4);
3002 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
3003 ent, 0, ECOFF_MARK_STAB (N_FUN));
3007 cur_proc_ptr = (proc_t *) NULL;
3009 *input_line_pointer = name_end;
3010 demand_empty_rest_of_line ();
3013 /* Parse .ent directives. */
3016 ecoff_directive_ent (ignore)
3023 if (cur_file_ptr == (efdr_t *) NULL)
3024 add_file ((const char *) NULL, 0);
3026 if (cur_proc_ptr != (proc_t *) NULL)
3028 as_warn ("second .ent directive found before .end directive");
3029 demand_empty_rest_of_line ();
3033 name = input_line_pointer;
3034 name_end = get_symbol_end ();
3037 if (! is_name_beginner (ch))
3039 as_warn (".ent directive has no name");
3040 *input_line_pointer = name_end;
3041 demand_empty_rest_of_line ();
3045 add_procedure (name);
3047 *input_line_pointer = name_end;
3049 /* The .ent directive is sometimes followed by a number. I'm not
3050 really sure what the number means. I don't see any way to store
3051 the information in the PDR. The Irix 4 assembler seems to ignore
3054 if (*input_line_pointer == ',')
3056 ++input_line_pointer;
3059 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3060 (void) get_absolute_expression ();
3062 demand_empty_rest_of_line ();
3065 /* Parse .file directives. */
3068 ecoff_directive_file (ignore)
3075 if (cur_proc_ptr != (proc_t *) NULL)
3077 as_warn ("No way to handle .file within .ent/.end section");
3078 demand_empty_rest_of_line ();
3082 indx = (int) get_absolute_expression ();
3084 /* FIXME: we don't have to save the name here. */
3085 name = demand_copy_C_string (&len);
3087 add_file (name, indx - 1);
3089 demand_empty_rest_of_line ();
3092 /* Parse .fmask directives. */
3095 ecoff_directive_fmask (ignore)
3100 if (cur_proc_ptr == (proc_t *) NULL)
3102 as_warn (".fmask outside of .ent");
3103 demand_empty_rest_of_line ();
3107 if (get_absolute_expression_and_terminator (&val) != ',')
3109 as_warn ("Bad .fmask directive");
3110 --input_line_pointer;
3111 demand_empty_rest_of_line ();
3115 cur_proc_ptr->pdr.fregmask = val;
3116 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3118 demand_empty_rest_of_line ();
3121 /* Parse .frame directives. */
3124 ecoff_directive_frame (ignore)
3129 if (cur_proc_ptr == (proc_t *) NULL)
3131 as_warn (".frame outside of .ent");
3132 demand_empty_rest_of_line ();
3136 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3139 if (*input_line_pointer++ != ','
3140 || get_absolute_expression_and_terminator (&val) != ',')
3142 as_warn ("Bad .frame directive");
3143 --input_line_pointer;
3144 demand_empty_rest_of_line ();
3148 cur_proc_ptr->pdr.frameoffset = val;
3150 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3152 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3153 to Sandro. I don't yet know where this value should be stored, if
3155 demand_empty_rest_of_line ();
3161 /* Parse .mask directives. */
3164 ecoff_directive_mask (ignore)
3169 if (cur_proc_ptr == (proc_t *) NULL)
3171 as_warn (".mask outside of .ent");
3172 demand_empty_rest_of_line ();
3176 if (get_absolute_expression_and_terminator (&val) != ',')
3178 as_warn ("Bad .mask directive");
3179 --input_line_pointer;
3180 demand_empty_rest_of_line ();
3184 cur_proc_ptr->pdr.regmask = val;
3185 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3187 demand_empty_rest_of_line ();
3190 /* Parse .loc directives. */
3193 ecoff_directive_loc (ignore)
3196 lineno_list_t *list;
3199 if (cur_file_ptr == (efdr_t *) NULL)
3201 as_warn (".loc before .file");
3202 demand_empty_rest_of_line ();
3206 if (now_seg != text_section)
3208 as_warn (".loc outside of .text");
3209 demand_empty_rest_of_line ();
3213 /* Skip the file number. */
3215 get_absolute_expression ();
3218 lineno = get_absolute_expression ();
3222 listing_source_line (lineno);
3225 /* If we're building stabs, then output a special label rather than
3226 ECOFF line number info. */
3229 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3230 symbol_new ("L0\001", now_seg,
3231 (valueT) frag_now_fix (),
3237 list = allocate_lineno_list ();
3239 list->next = (lineno_list_t *) NULL;
3240 list->file = cur_file_ptr;
3241 list->proc = cur_proc_ptr;
3242 list->frag = frag_now;
3243 list->paddr = frag_now_fix ();
3244 list->lineno = lineno;
3246 /* A .loc directive will sometimes appear before a .ent directive,
3247 which means that cur_proc_ptr will be NULL here. Arrange to
3249 if (cur_proc_ptr == (proc_t *) NULL)
3253 pl = &noproc_lineno;
3254 while (*pl != (lineno_list_t *) NULL)
3260 *last_lineno_ptr = list;
3261 last_lineno_ptr = &list->next;
3265 /* Make sure the @stabs symbol is emitted. */
3273 /* Add a dummy @stabs dymbol. */
3275 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3277 (symint_t) -1, ECOFF_MARK_STAB (0));
3281 /* Handle .stabs directives. The actual parsing routine is done by a
3282 generic routine. This routine is called via OBJ_PROCESS_STAB.
3283 When this is called, input_line_pointer will be pointing at the
3284 value field of the stab.
3286 .stabs directives have five fields:
3287 "string" a string, encoding the type information.
3288 code a numeric code, defined in <stab.h>
3290 desc a zero or line number
3291 value a numeric value or an address.
3293 If the value is relocatable, we transform this into:
3294 iss points as an index into string space
3295 value value from lookup of the name
3296 st st from lookup of the name
3297 sc sc from lookup of the name
3298 index code|CODE_MASK
3300 If the value is not relocatable, we transform this into:
3301 iss points as an index into string space
3305 index code|CODE_MASK
3307 .stabn directives have four fields (string is null):
3308 code a numeric code, defined in <stab.h>
3310 desc a zero or a line number
3311 value a numeric value or an address. */
3314 ecoff_stab (what, string, type, other, desc)
3321 efdr_t *save_file_ptr = cur_file_ptr;
3327 localsym_t *hold = NULL;
3329 /* We don't handle .stabd. */
3330 if (what != 's' && what != 'n')
3332 as_bad (".stab%c is not supported", what);
3336 /* A .stabn uses a null name, not an empty string. */
3340 /* We ignore the other field. */
3342 as_warn (".stab%c: ignoring non-zero other field", what);
3344 /* Make sure we have a current file. */
3345 if (cur_file_ptr == (efdr_t *) NULL)
3347 add_file ((const char *) NULL, 0);
3348 save_file_ptr = cur_file_ptr;
3351 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3353 if (stabs_seen == 0)
3356 /* Line number stabs are handled differently, since they have two
3357 values, the line number and the address of the label. We use the
3358 index field (aka desc) to hold the line number, and the value
3359 field to hold the address. The symbol type is st_Label, which
3360 should be different from the other stabs, so that gdb can
3362 if (type == N_SLINE)
3370 listing_source_line ((unsigned int) desc);
3373 dummy_symr.index = desc;
3374 if (dummy_symr.index != desc)
3376 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3381 name = input_line_pointer;
3382 name_end = get_symbol_end ();
3384 sym = symbol_find_or_make (name);
3385 *input_line_pointer = name_end;
3395 if (listing && (type == N_SO || type == N_SOL))
3396 listing_source_file (string);
3399 if (isdigit (*input_line_pointer)
3400 || *input_line_pointer == '-'
3401 || *input_line_pointer == '+')
3405 sym = (symbolS *) NULL;
3406 value = get_absolute_expression ();
3408 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3410 as_warn ("Illegal .stab%c directive, bad character", what);
3418 name = input_line_pointer;
3419 name_end = get_symbol_end ();
3421 sym = symbol_find_or_make (name);
3427 *input_line_pointer = name_end;
3428 if (name_end == '+' || name_end == '-')
3430 ++input_line_pointer;
3431 value = get_absolute_expression ();
3432 if (name_end == '-')
3437 indx = ECOFF_MARK_STAB (type);
3440 /* Don't store the stabs symbol we are creating as the type of the
3441 ECOFF symbol. We want to compute the type of the ECOFF symbol
3443 if (sym != (symbolS *) NULL)
3444 hold = sym->ecoff_symbol;
3446 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3448 if (sym != (symbolS *) NULL)
3449 sym->ecoff_symbol = hold;
3451 /* Restore normal file type. */
3452 cur_file_ptr = save_file_ptr;
3455 /* Frob an ECOFF symbol. Small common symbols go into a special
3456 .scommon section rather than bfd_com_section. */
3459 ecoff_frob_symbol (sym)
3462 if (S_IS_COMMON (sym)
3463 && S_GET_VALUE (sym) > 0
3464 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3466 static asection scom_section;
3467 static asymbol scom_symbol;
3469 /* We must construct a fake section similar to bfd_com_section
3470 but with the name .scommon. */
3471 if (scom_section.name == NULL)
3473 scom_section = bfd_com_section;
3474 scom_section.name = ".scommon";
3475 scom_section.output_section = &scom_section;
3476 scom_section.symbol = &scom_symbol;
3477 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3478 scom_symbol = *bfd_com_section.symbol;
3479 scom_symbol.name = ".scommon";
3480 scom_symbol.section = &scom_section;
3482 S_SET_SEGMENT (sym, &scom_section);
3486 /* Add bytes to the symbolic information buffer. */
3489 ecoff_add_bytes (buf, bufend, bufptr, need)
3499 need -= *bufend - bufptr;
3500 if (need < PAGE_SIZE)
3502 want = (*bufend - *buf) + need;
3503 *buf = xrealloc (*buf, want);
3504 *bufend = *buf + want;
3508 /* Adjust the symbolic information buffer to the alignment required
3509 for the ECOFF target debugging information. */
3511 static unsigned long
3512 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3513 const struct ecoff_debug_swap *backend;
3516 unsigned long offset;
3519 bfd_size_type align;
3521 align = backend->debug_align;
3522 if ((offset & (align - 1)) != 0)
3526 add = align - (offset & (align - 1));
3527 if (*bufend - (*buf + offset) < add)
3528 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3529 memset (*buf + offset, 0, add);
3531 if (bufptrptr != (char **) NULL)
3532 *bufptrptr = *buf + offset;
3538 /* Build the line number information. */
3540 static unsigned long
3541 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3542 const struct ecoff_debug_swap *backend;
3545 unsigned long offset;
3549 register lineno_list_t *l;
3550 lineno_list_t *last;
3556 lineno_list_t first;
3558 if (linecntptr != (long *) NULL)
3561 bufptr = *buf + offset;
3563 file = (efdr_t *) NULL;
3564 proc = (proc_t *) NULL;
3565 last = (lineno_list_t *) NULL;
3570 /* For some reason the address of the first procedure is ignored
3571 when reading line numbers. This doesn't matter if the address of
3572 the first procedure is 0, but when gcc is generating MIPS
3573 embedded PIC code, it will put strings in the .text section
3574 before the first procedure. We cope by inserting a dummy line if
3575 the address of the first procedure is not 0. Hopefully this
3576 won't screw things up too badly. */
3577 if (first_proc_ptr != (proc_t *) NULL
3578 && first_lineno != (lineno_list_t *) NULL
3579 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3580 + bfd_get_section_vma (stdoutput,
3581 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3584 first.file = first_lineno->file;
3585 first.proc = first_lineno->proc;
3586 first.frag = &zero_address_frag;
3590 first.next = first_lineno;
3591 first_lineno = &first;
3594 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3599 /* Get the offset to the memory address of the next line number
3600 (in words). Do this first, so that we can skip ahead to the
3601 next useful line number entry. */
3602 if (l->next == (lineno_list_t *) NULL)
3606 count = ((l->next->frag->fr_address + l->next->paddr
3607 - (l->frag->fr_address + l->paddr))
3611 /* Don't change last, so we still get the right delta. */
3616 if (l->file != file || l->proc != proc)
3618 if (l->proc != proc && proc != (proc_t *) NULL)
3619 proc->pdr.lnHigh = last->lineno;
3620 if (l->file != file && file != (efdr_t *) NULL)
3622 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3623 /* The cline field is ill-documented. This is a guess
3624 at the right value. */
3625 file->fdr.cline = totcount + count;
3626 if (linecntptr != (long *) NULL)
3627 *linecntptr += totcount + count;
3631 if (l->file != file)
3634 file->fdr.ilineBase = iline;
3635 file->fdr.cbLineOffset = c;
3637 if (l->proc != proc)
3640 if (proc != (proc_t *) NULL)
3642 proc->pdr.lnLow = l->lineno;
3643 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3644 /* The iline field is ill-documented. This is a
3645 guess at the right value. */
3646 proc->pdr.iline = totcount;
3650 last = (lineno_list_t *) NULL;
3655 /* Get the offset to this line number. */
3656 if (last == (lineno_list_t *) NULL)
3659 delta = l->lineno - last->lineno;
3661 /* Put in the offset to this line number. */
3666 /* 1 is added to each count read. */
3668 /* We can only adjust the word count by up to 15 words at a
3680 if (delta >= -7 && delta <= 7)
3682 if (bufptr >= *bufend)
3683 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3684 *bufptr++ = setcount + (delta << 4);
3692 if (*bufend - bufptr < 3)
3693 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3694 *bufptr++ = setcount + (8 << 4);
3695 if (delta < -0x8000)
3700 else if (delta > 0x7fff)
3710 *bufptr++ = set >> 8;
3711 *bufptr++ = set & 0xffff;
3716 /* Finish adjusting the count. */
3719 if (bufptr >= *bufend)
3720 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3721 /* 1 is added to each count read. */
3740 if (proc != (proc_t *) NULL)
3741 proc->pdr.lnHigh = last->lineno;
3742 if (file != (efdr_t *) NULL)
3744 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3745 file->fdr.cline = totcount;
3748 if (linecntptr != (long *) NULL)
3749 *linecntptr += totcount;
3751 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3756 /* Build and swap out the symbols. */
3758 static unsigned long
3759 ecoff_build_symbols (backend, buf, bufend, offset)
3760 const struct ecoff_debug_swap *backend;
3763 unsigned long offset;
3765 const bfd_size_type external_sym_size = backend->external_sym_size;
3766 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3767 = backend->swap_sym_out;
3770 vlinks_t *file_link;
3772 sym_out = *buf + offset;
3776 /* The symbols are stored by file. */
3777 for (file_link = file_desc.first;
3778 file_link != (vlinks_t *) NULL;
3779 file_link = file_link->next)
3786 if (file_link->next == (vlinks_t *) NULL)
3787 fil_cnt = file_desc.objects_last_page;
3789 fil_cnt = file_desc.objects_per_page;
3790 fil_ptr = file_link->datum->file;
3791 fil_end = fil_ptr + fil_cnt;
3792 for (; fil_ptr < fil_end; fil_ptr++)
3796 fil_ptr->fdr.isymBase = isym;
3798 for (sym_link = fil_ptr->symbols.first;
3799 sym_link != (vlinks_t *) NULL;
3800 sym_link = sym_link->next)
3803 localsym_t *sym_ptr;
3804 localsym_t *sym_end;
3806 if (sym_link->next == (vlinks_t *) NULL)
3807 sym_cnt = fil_ptr->symbols.objects_last_page;
3809 sym_cnt = fil_ptr->symbols.objects_per_page;
3810 sym_ptr = sym_link->datum->sym;
3811 sym_end = sym_ptr + sym_cnt;
3812 for (; sym_ptr < sym_end; sym_ptr++)
3818 know (sym_ptr->file_ptr == fil_ptr);
3820 /* If there is no associated gas symbol, then this
3821 is a pure debugging symbol. We have already
3822 added the name (if any) to fil_ptr->strings.
3823 Otherwise we must decide whether this is an
3824 external or a local symbol (actually, it may be
3825 both if the local provides additional debugging
3826 information for the external). */
3828 as_sym = sym_ptr->as_sym;
3829 if (as_sym != (symbolS *) NULL)
3833 /* The value of a block start symbol is the
3834 offset from the start of the procedure. For
3835 other symbols we just use the gas value (but
3836 we must offset it by the vma of the section,
3837 just as BFD does, because BFD will not see
3839 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3840 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3844 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3845 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3846 if (S_GET_SEGMENT (as_sym)
3847 != S_GET_SEGMENT (begin_sym))
3848 as_warn (".begin/.bend in different segments");
3849 sym_ptr->ecoff_sym.asym.value =
3850 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3853 sym_ptr->ecoff_sym.asym.value =
3854 (S_GET_VALUE (as_sym)
3855 + bfd_get_section_vma (stdoutput,
3856 S_GET_SEGMENT (as_sym)));
3858 /* Set st_Proc to st_StaticProc for local
3860 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3861 && S_IS_DEFINED (as_sym)
3862 && ! S_IS_EXTERNAL (as_sym))
3863 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3865 /* Get the type and storage class based on where
3866 the symbol actually wound up. Traditionally,
3867 N_LBRAC and N_RBRAC are *not* relocated. */
3868 indx = sym_ptr->ecoff_sym.asym.index;
3869 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3870 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3871 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3872 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3873 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3876 const char *segname;
3880 seg = S_GET_SEGMENT (as_sym);
3881 segname = segment_name (seg);
3883 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3884 && (S_IS_EXTERNAL (as_sym)
3885 || ! S_IS_DEFINED (as_sym)))
3887 else if (seg == text_section)
3892 if (! S_IS_DEFINED (as_sym))
3894 if (as_sym->ecoff_extern_size == 0
3895 || (as_sym->ecoff_extern_size
3896 > bfd_get_gp_size (stdoutput)))
3901 sym_ptr->ecoff_sym.asym.value =
3902 as_sym->ecoff_extern_size;
3905 else if (S_IS_COMMON (as_sym))
3907 if (S_GET_VALUE (as_sym) > 0
3908 && (S_GET_VALUE (as_sym)
3909 <= bfd_get_gp_size (stdoutput)))
3914 else if (seg == text_section)
3916 else if (seg == data_section)
3918 else if (strcmp (segname, ".rdata") == 0
3919 || strcmp (segname, ".rodata") == 0)
3921 else if (strcmp (segname, ".sdata") == 0)
3923 else if (seg == bss_section)
3925 else if (strcmp (segname, ".sbss") == 0)
3927 else if (seg == &bfd_abs_section)
3932 sym_ptr->ecoff_sym.asym.st = (int) st;
3933 sym_ptr->ecoff_sym.asym.sc = (int) sc;
3936 /* This is just an external symbol if it is
3937 outside a procedure and it has a type.
3938 FIXME: g++ will generate symbols which have
3939 different names in the debugging information
3940 than the actual symbol. Should we handle
3942 if ((S_IS_EXTERNAL (as_sym)
3943 || ! S_IS_DEFINED (as_sym))
3944 && sym_ptr->proc_ptr == (proc_t *) NULL
3945 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
3946 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
3949 /* If an st_end symbol has an associated gas
3950 symbol, then it is a local label created for
3951 a .bend or .end directive. Stabs line
3952 numbers will have \001 in the names. */
3954 && sym_ptr->ecoff_sym.asym.st != st_End
3955 && strchr (sym_ptr->name, '\001') == 0)
3956 sym_ptr->ecoff_sym.asym.iss =
3957 add_string (&fil_ptr->strings,
3963 /* We now know the index of this symbol; fill in
3964 locations that have been waiting for that
3966 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3968 localsym_t *begin_ptr;
3972 begin_ptr = sym_ptr->begin_ptr;
3973 know (begin_ptr->sym_index != -1);
3974 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
3975 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3976 sym_ptr->ecoff_sym.asym.iss =
3977 begin_ptr->ecoff_sym.asym.iss;
3979 begin_type = begin_ptr->ecoff_sym.asym.st;
3980 if (begin_type == st_File
3981 || begin_type == st_Block)
3983 begin_ptr->ecoff_sym.asym.index =
3984 isym - ifilesym + 1;
3985 (*swap_sym_out) (stdoutput,
3986 &begin_ptr->ecoff_sym.asym,
3989 + (begin_ptr->sym_index
3990 * external_sym_size)));
3994 know (begin_ptr->index_ptr != (aux_t *) NULL);
3995 begin_ptr->index_ptr->data.isym =
3996 isym - ifilesym + 1;
3999 /* The value of the symbol marking the end of a
4000 procedure is the size of the procedure. The
4001 value of the symbol marking the end of a
4002 block is the offset from the start of the
4003 procedure to the block. */
4004 if (begin_type == st_Proc
4005 || begin_type == st_StaticProc)
4007 know (as_sym != (symbolS *) NULL);
4008 know (begin_ptr->as_sym != (symbolS *) NULL);
4009 if (S_GET_SEGMENT (as_sym)
4010 != S_GET_SEGMENT (begin_ptr->as_sym))
4011 as_warn (".begin/.bend in different segments");
4012 sym_ptr->ecoff_sym.asym.value =
4013 (S_GET_VALUE (as_sym)
4014 - S_GET_VALUE (begin_ptr->as_sym));
4016 else if (begin_type == st_Block
4017 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4021 know (as_sym != (symbolS *) NULL);
4022 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4023 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4024 if (S_GET_SEGMENT (as_sym)
4025 != S_GET_SEGMENT (begin_sym))
4026 as_warn (".begin/.bend in different segments");
4027 sym_ptr->ecoff_sym.asym.value =
4028 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4032 for (f = sym_ptr->forward_ref;
4033 f != (forward_t *) NULL;
4037 f->ifd_ptr->data.isym = fil_ptr->file_index;
4038 f->index_ptr->data.rndx.index = isym - ifilesym;
4043 if (*bufend - sym_out < external_sym_size)
4044 sym_out = ecoff_add_bytes (buf, bufend,
4047 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4049 sym_out += external_sym_size;
4051 sym_ptr->sym_index = isym;
4053 if (sym_ptr->proc_ptr != (proc_t *) NULL
4054 && sym_ptr->proc_ptr->sym == sym_ptr)
4055 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4060 /* Record the local symbol index and file number in
4061 case this is an external symbol. Note that this
4062 destroys the asym.index field. */
4063 if (as_sym != (symbolS *) NULL
4064 && as_sym->ecoff_symbol == sym_ptr)
4066 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4067 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4070 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4072 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4076 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4080 return offset + isym * external_sym_size;
4083 /* Swap out the procedure information. */
4085 static unsigned long
4086 ecoff_build_procs (backend, buf, bufend, offset)
4087 const struct ecoff_debug_swap *backend;
4090 unsigned long offset;
4092 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4093 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4094 = backend->swap_pdr_out;
4098 vlinks_t *file_link;
4100 pdr_out = *buf + offset;
4105 /* The procedures are stored by file. */
4106 for (file_link = file_desc.first;
4107 file_link != (vlinks_t *) NULL;
4108 file_link = file_link->next)
4114 if (file_link->next == (vlinks_t *) NULL)
4115 fil_cnt = file_desc.objects_last_page;
4117 fil_cnt = file_desc.objects_per_page;
4118 fil_ptr = file_link->datum->file;
4119 fil_end = fil_ptr + fil_cnt;
4120 for (; fil_ptr < fil_end; fil_ptr++)
4122 vlinks_t *proc_link;
4125 fil_ptr->fdr.ipdFirst = iproc;
4127 for (proc_link = fil_ptr->procs.first;
4128 proc_link != (vlinks_t *) NULL;
4129 proc_link = proc_link->next)
4135 if (proc_link->next == (vlinks_t *) NULL)
4136 prc_cnt = fil_ptr->procs.objects_last_page;
4138 prc_cnt = fil_ptr->procs.objects_per_page;
4139 proc_ptr = proc_link->datum->proc;
4140 proc_end = proc_ptr + prc_cnt;
4141 for (; proc_ptr < proc_end; proc_ptr++)
4146 adr_sym = proc_ptr->sym->as_sym;
4147 adr = (S_GET_VALUE (adr_sym)
4148 + bfd_get_section_vma (stdoutput,
4149 S_GET_SEGMENT (adr_sym)));
4155 fil_ptr->fdr.adr = adr;
4158 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4159 if (*bufend - pdr_out < external_pdr_size)
4160 pdr_out = ecoff_add_bytes (buf, bufend,
4163 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4164 pdr_out += external_pdr_size;
4168 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4172 return offset + iproc * external_pdr_size;
4175 /* Swap out the aux information. */
4177 static unsigned long
4178 ecoff_build_aux (backend, buf, bufend, offset)
4179 const struct ecoff_debug_swap *backend;
4182 unsigned long offset;
4185 union aux_ext *aux_out;
4187 vlinks_t *file_link;
4189 bigendian = stdoutput->xvec->header_byteorder_big_p;
4191 aux_out = (union aux_ext *) (*buf + offset);
4195 /* The aux entries are stored by file. */
4196 for (file_link = file_desc.first;
4197 file_link != (vlinks_t *) NULL;
4198 file_link = file_link->next)
4204 if (file_link->next == (vlinks_t *) NULL)
4205 fil_cnt = file_desc.objects_last_page;
4207 fil_cnt = file_desc.objects_per_page;
4208 fil_ptr = file_link->datum->file;
4209 fil_end = fil_ptr + fil_cnt;
4210 for (; fil_ptr < fil_end; fil_ptr++)
4214 fil_ptr->fdr.fBigendian = bigendian;
4215 fil_ptr->fdr.iauxBase = iaux;
4216 for (aux_link = fil_ptr->aux_syms.first;
4217 aux_link != (vlinks_t *) NULL;
4218 aux_link = aux_link->next)
4224 if (aux_link->next == (vlinks_t *) NULL)
4225 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4227 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4228 aux_ptr = aux_link->datum->aux;
4229 aux_end = aux_ptr + aux_cnt;
4230 for (; aux_ptr < aux_end; aux_ptr++)
4232 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4233 aux_out = ((union aux_ext *)
4234 ecoff_add_bytes (buf, bufend,
4236 sizeof (union aux_ext)));
4237 switch (aux_ptr->type)
4240 (*backend->swap_tir_out) (bigendian,
4245 (*backend->swap_rndx_out) (bigendian,
4246 &aux_ptr->data.rndx,
4250 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4254 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4258 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4262 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4266 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4270 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4279 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4283 return ecoff_padding_adjust (backend, buf, bufend,
4284 offset + iaux * sizeof (union aux_ext),
4288 /* Copy out the strings from a varray_t. This returns the number of
4289 bytes copied, rather than the new offset. */
4291 static unsigned long
4292 ecoff_build_strings (buf, bufend, offset, vp)
4295 unsigned long offset;
4302 str_out = *buf + offset;
4306 for (str_link = vp->first;
4307 str_link != (vlinks_t *) NULL;
4308 str_link = str_link->next)
4310 unsigned long str_cnt;
4312 if (str_link->next == (vlinks_t *) NULL)
4313 str_cnt = vp->objects_last_page;
4315 str_cnt = vp->objects_per_page;
4317 if (*bufend - str_out < str_cnt)
4318 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4320 memcpy (str_out, str_link->datum->byte, str_cnt);
4328 /* Dump out the local strings. */
4330 static unsigned long
4331 ecoff_build_ss (backend, buf, bufend, offset)
4332 const struct ecoff_debug_swap *backend;
4335 unsigned long offset;
4338 vlinks_t *file_link;
4342 for (file_link = file_desc.first;
4343 file_link != (vlinks_t *) NULL;
4344 file_link = file_link->next)
4350 if (file_link->next == (vlinks_t *) NULL)
4351 fil_cnt = file_desc.objects_last_page;
4353 fil_cnt = file_desc.objects_per_page;
4354 fil_ptr = file_link->datum->file;
4355 fil_end = fil_ptr + fil_cnt;
4356 for (; fil_ptr < fil_end; fil_ptr++)
4360 fil_ptr->fdr.issBase = iss;
4361 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4363 fil_ptr->fdr.cbSs = ss_cnt;
4368 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4372 /* Swap out the file descriptors. */
4374 static unsigned long
4375 ecoff_build_fdr (backend, buf, bufend, offset)
4376 const struct ecoff_debug_swap *backend;
4379 unsigned long offset;
4381 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4382 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4383 = backend->swap_fdr_out;
4386 vlinks_t *file_link;
4390 fdr_out = *buf + offset;
4392 for (file_link = file_desc.first;
4393 file_link != (vlinks_t *) NULL;
4394 file_link = file_link->next)
4400 if (file_link->next == (vlinks_t *) NULL)
4401 fil_cnt = file_desc.objects_last_page;
4403 fil_cnt = file_desc.objects_per_page;
4404 fil_ptr = file_link->datum->file;
4405 fil_end = fil_ptr + fil_cnt;
4406 for (; fil_ptr < fil_end; fil_ptr++)
4408 if (*bufend - fdr_out < external_fdr_size)
4409 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4411 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4412 fdr_out += external_fdr_size;
4417 return offset + ifile * external_fdr_size;
4420 /* Set up the external symbols. These are supposed to be handled by
4421 the backend. This routine just gets the right information and
4422 calls a backend function to deal with it. */
4427 register symbolS *sym;
4429 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4431 if (sym->ecoff_symbol == NULL)
4434 /* If this is a local symbol, then force the fields to zero. */
4435 if (! S_IS_EXTERNAL (sym)
4436 && S_IS_DEFINED (sym))
4438 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4439 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4440 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4441 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4444 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4448 /* Build the ECOFF dbeugging information. */
4451 ecoff_build_debug (hdr, bufp, backend)
4454 const struct ecoff_debug_swap *backend;
4456 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4461 efdr_t *hold_file_ptr;
4462 proc_t * hold_proc_ptr;
4466 unsigned long offset;
4468 /* Make sure we have a file. */
4469 if (first_file == (efdr_t *) NULL)
4470 add_file ((const char *) NULL, 0);
4472 /* Handle any top level tags. */
4473 for (ptag = top_tag_head->first_tag;
4474 ptag != (tag_t *) NULL;
4477 if (ptag->forward_ref != (forward_t *) NULL)
4478 add_unknown_tag (ptag);
4480 ptag_next = ptag->same_block;
4481 ptag->hash_ptr->tag_ptr = ptag->same_name;
4485 free_thead (top_tag_head);
4487 /* Look through the symbols. Add debugging information for each
4488 symbol that has not already received it. */
4489 hold_file_ptr = cur_file_ptr;
4490 hold_proc_ptr = cur_proc_ptr;
4491 cur_proc_ptr = (proc_t *) NULL;
4492 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4494 if (sym->ecoff_symbol != NULL
4495 || sym->ecoff_file == (efdr_t *) NULL
4496 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4499 cur_file_ptr = sym->ecoff_file;
4500 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4501 S_GET_VALUE (sym), indexNil);
4503 cur_proc_ptr = hold_proc_ptr;
4504 cur_file_ptr = hold_file_ptr;
4506 /* Output an ending symbol for all the files. We have to do this
4507 here for the last file, so we may as well do it for all of the
4510 for (fil_ptr = first_file;
4511 fil_ptr != (efdr_t *) NULL;
4512 fil_ptr = fil_ptr->next_file)
4514 cur_file_ptr = fil_ptr;
4515 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4517 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4520 as_warn ("Missing .end or .bend at end of file");
4524 (void) add_ecoff_symbol ((const char *) NULL,
4531 /* Build the symbolic information. */
4533 buf = xmalloc (PAGE_SIZE);
4534 bufend = buf + PAGE_SIZE;
4536 /* Build the line number information. */
4537 hdr->cbLineOffset = offset;
4538 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4540 hdr->cbLine = offset - hdr->cbLineOffset;
4542 /* We don't use dense numbers at all. */
4544 hdr->cbDnOffset = 0;
4546 /* We can't build the PDR table until we have built the symbols,
4547 because a PDR contains a symbol index. However, we set aside
4548 space at this point. */
4549 hdr->ipdMax = proc_cnt;
4550 hdr->cbPdOffset = offset;
4551 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4552 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4553 proc_cnt * external_pdr_size);
4554 offset += proc_cnt * external_pdr_size;
4556 /* Build the local symbols. */
4557 hdr->cbSymOffset = offset;
4558 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4559 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4561 /* Building the symbols initializes the symbol index in the PDR's.
4562 Now we can swap out the PDR's. */
4563 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4565 /* We don't use optimization symbols. */
4567 hdr->cbOptOffset = 0;
4569 /* Swap out the auxiliary type information. */
4570 hdr->cbAuxOffset = offset;
4571 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4572 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4574 /* Copy out the local strings. */
4575 hdr->cbSsOffset = offset;
4576 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4577 hdr->issMax = offset - hdr->cbSsOffset;
4579 /* We don't use relative file descriptors. */
4581 hdr->cbRfdOffset = 0;
4583 /* Swap out the file descriptors. */
4584 hdr->cbFdOffset = offset;
4585 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4586 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4588 /* Set up the external symbols, which are handled by the BFD back
4591 hdr->cbSsExtOffset = 0;
4593 hdr->cbExtOffset = 0;
4596 know ((offset & (backend->debug_align - 1)) == 0);
4598 /* FIXME: This value should be determined from the .verstamp directive,
4599 with reasonable defaults in config files. */
4601 hdr->vstamp = 0x030b;
4603 hdr->vstamp = 0x020b;
4610 /* Allocate a cluster of pages. */
4612 #ifndef MALLOC_CHECK
4615 allocate_cluster (npages)
4616 unsigned long npages;
4618 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4622 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4625 memset (value, 0, npages * PAGE_USIZE);
4631 static page_t *cluster_ptr = NULL;
4632 static unsigned long pages_left = 0;
4634 #endif /* MALLOC_CHECK */
4636 /* Allocate one page (which is initialized to 0). */
4641 #ifndef MALLOC_CHECK
4643 if (pages_left == 0)
4645 pages_left = MAX_CLUSTER_PAGES;
4646 cluster_ptr = allocate_cluster (pages_left);
4650 return cluster_ptr++;
4652 #else /* MALLOC_CHECK */
4656 ptr = xmalloc (PAGE_USIZE);
4657 memset (ptr, 0, PAGE_USIZE);
4660 #endif /* MALLOC_CHECK */
4663 /* Allocate scoping information. */
4668 register scope_t *ptr;
4669 static scope_t initial_scope;
4671 #ifndef MALLOC_CHECK
4673 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4674 if (ptr != (scope_t *) NULL)
4675 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4678 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4679 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4681 if (unallocated == 0)
4683 unallocated = PAGE_SIZE / sizeof (scope_t);
4684 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4685 alloc_counts[(int)alloc_type_scope].total_pages++;
4688 ptr = &cur_page->scope[--unallocated];
4689 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4694 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4698 alloc_counts[(int)alloc_type_scope].total_alloc++;
4699 *ptr = initial_scope;
4703 /* Free scoping information. */
4709 alloc_counts[(int)alloc_type_scope].total_free++;
4711 #ifndef MALLOC_CHECK
4712 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4713 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4719 /* Allocate links for pages in a virtual array. */
4724 register vlinks_t *ptr;
4725 static vlinks_t initial_vlinks;
4727 #ifndef MALLOC_CHECK
4729 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4730 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4732 if (unallocated == 0)
4734 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4735 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4736 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4739 ptr = &cur_page->vlinks[--unallocated];
4740 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4744 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4748 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4749 *ptr = initial_vlinks;
4753 /* Allocate string hash buckets. */
4758 register shash_t *ptr;
4759 static shash_t initial_shash;
4761 #ifndef MALLOC_CHECK
4763 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4764 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4766 if (unallocated == 0)
4768 unallocated = PAGE_SIZE / sizeof (shash_t);
4769 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4770 alloc_counts[(int)alloc_type_shash].total_pages++;
4773 ptr = &cur_page->shash[--unallocated];
4774 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4778 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4782 alloc_counts[(int)alloc_type_shash].total_alloc++;
4783 *ptr = initial_shash;
4787 /* Allocate type hash buckets. */
4792 register thash_t *ptr;
4793 static thash_t initial_thash;
4795 #ifndef MALLOC_CHECK
4797 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4798 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4800 if (unallocated == 0)
4802 unallocated = PAGE_SIZE / sizeof (thash_t);
4803 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4804 alloc_counts[(int)alloc_type_thash].total_pages++;
4807 ptr = &cur_page->thash[--unallocated];
4808 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4812 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4816 alloc_counts[(int)alloc_type_thash].total_alloc++;
4817 *ptr = initial_thash;
4821 /* Allocate structure, union, or enum tag information. */
4826 register tag_t *ptr;
4827 static tag_t initial_tag;
4829 #ifndef MALLOC_CHECK
4831 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4832 if (ptr != (tag_t *) NULL)
4833 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4836 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4837 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4839 if (unallocated == 0)
4841 unallocated = PAGE_SIZE / sizeof (tag_t);
4842 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4843 alloc_counts[(int)alloc_type_tag].total_pages++;
4846 ptr = &cur_page->tag[--unallocated];
4847 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4852 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4856 alloc_counts[(int)alloc_type_tag].total_alloc++;
4861 /* Free scoping information. */
4867 alloc_counts[(int)alloc_type_tag].total_free++;
4869 #ifndef MALLOC_CHECK
4870 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4871 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4877 /* Allocate forward reference to a yet unknown tag. */
4882 register forward_t *ptr;
4883 static forward_t initial_forward;
4885 #ifndef MALLOC_CHECK
4887 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4888 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4890 if (unallocated == 0)
4892 unallocated = PAGE_SIZE / sizeof (forward_t);
4893 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4894 alloc_counts[(int)alloc_type_forward].total_pages++;
4897 ptr = &cur_page->forward[--unallocated];
4898 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4902 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4906 alloc_counts[(int)alloc_type_forward].total_alloc++;
4907 *ptr = initial_forward;
4911 /* Allocate head of type hash list. */
4916 register thead_t *ptr;
4917 static thead_t initial_thead;
4919 #ifndef MALLOC_CHECK
4921 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4922 if (ptr != (thead_t *) NULL)
4923 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4926 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4927 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4929 if (unallocated == 0)
4931 unallocated = PAGE_SIZE / sizeof (thead_t);
4932 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4933 alloc_counts[(int)alloc_type_thead].total_pages++;
4936 ptr = &cur_page->thead[--unallocated];
4937 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4942 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4946 alloc_counts[(int)alloc_type_thead].total_alloc++;
4947 *ptr = initial_thead;
4951 /* Free scoping information. */
4957 alloc_counts[(int)alloc_type_thead].total_free++;
4959 #ifndef MALLOC_CHECK
4960 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4961 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4967 static lineno_list_t *
4968 allocate_lineno_list ()
4970 register lineno_list_t *ptr;
4971 static lineno_list_t initial_lineno_list;
4973 #ifndef MALLOC_CHECK
4975 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4976 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4978 if (unallocated == 0)
4980 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4981 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4982 alloc_counts[(int)alloc_type_lineno].total_pages++;
4985 ptr = &cur_page->lineno[--unallocated];
4986 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
4990 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
4994 alloc_counts[(int)alloc_type_lineno].total_alloc++;
4995 *ptr = initial_lineno_list;
5000 ecoff_set_gp_prolog_size (sz)
5003 if (cur_proc_ptr == 0)
5006 cur_proc_ptr->pdr.gp_prologue = sz;
5007 if (cur_proc_ptr->pdr.gp_prologue != sz)
5009 as_warn ("GP prologue size exceeds field size, using 0 instead");
5010 cur_proc_ptr->pdr.gp_prologue = 0;
5013 cur_proc_ptr->pdr.gp_used = 1;
5017 generate_ecoff_stab (what, string, type, other, desc)
5024 efdr_t *save_file_ptr = cur_file_ptr;
5030 localsym_t *hold = NULL;
5032 /* We don't handle .stabd. */
5033 if (what != 's' && what != 'n')
5035 as_bad (".stab%c is not supported", what);
5039 /* We ignore the other field. */
5041 as_warn (".stab%c: ignoring non-zero other field", what);
5043 /* Make sure we have a current file. */
5044 if (cur_file_ptr == (efdr_t *) NULL)
5046 add_file ((const char *) NULL, 0);
5047 save_file_ptr = cur_file_ptr;
5050 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5052 if (stabs_seen == 0)
5055 /* Line number stabs are handled differently, since they have two
5056 values, the line number and the address of the label. We use the
5057 index field (aka desc) to hold the line number, and the value
5058 field to hold the address. The symbol type is st_Label, which
5059 should be different from the other stabs, so that gdb can
5061 if (type == N_SLINE)
5067 listing_source_line ((unsigned int) desc);
5070 dummy_symr.index = desc;
5071 if (dummy_symr.index != desc)
5073 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5078 sym = symbol_find_or_make ((char *)string);
5087 if (listing && (type == N_SO || type == N_SOL))
5088 listing_source_file (string);
5091 sym = symbol_find_or_make ((char *)string);
5095 indx = ECOFF_MARK_STAB (type);
5098 /* Don't store the stabs symbol we are creating as the type of the
5099 ECOFF symbol. We want to compute the type of the ECOFF symbol
5101 if (sym != (symbolS *) NULL)
5102 hold = sym->ecoff_symbol;
5104 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
5106 if (sym != (symbolS *) NULL)
5107 sym->ecoff_symbol = hold;
5109 /* Restore normal file type. */
5110 cur_file_ptr = save_file_ptr;
5113 static int line_label_cnt = 0;
5115 ecoff_generate_asm_line_stab (lineno)
5121 /* generate local label $LMnn */
5123 sprintf(ll, "$LM%d", line_label_cnt);
5126 /* generate stab for the line */
5127 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5131 #endif /* ECOFF_DEBUGGING */