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;
1405 static const char *current_stabs_filename;
1407 /* Pseudo symbol to use when putting stabs into the symbol table. */
1408 #ifndef STABS_SYMBOL
1409 #define STABS_SYMBOL "@stabs"
1412 static char stabs_symbol[] = STABS_SYMBOL;
1414 /* Prototypes for functions defined in this file. */
1416 static void add_varray_page PARAMS ((varray_t *vp));
1417 static symint_t add_string PARAMS ((varray_t *vp,
1418 struct hash_control *hash_tbl,
1420 shash_t **ret_hash));
1421 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1422 sc_t storage, symbolS *sym,
1425 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1426 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1427 symint_t sym_index));
1428 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1430 thash_t **hash_tbl));
1431 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1433 static void add_unknown_tag PARAMS ((tag_t *ptag));
1434 static void add_procedure PARAMS ((char *func));
1435 static void add_file PARAMS ((const char *file_name, int indx));
1437 static char *sc_to_string PARAMS ((sc_t storage_class));
1438 static char *st_to_string PARAMS ((st_t symbol_type));
1440 static void mark_stabs PARAMS ((int));
1441 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1442 char *bufptr, unsigned long need));
1443 static unsigned long ecoff_padding_adjust
1444 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1445 unsigned long offset, char **bufptrptr));
1446 static unsigned long ecoff_build_lineno
1447 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1448 unsigned long offset, long *linecntptr));
1449 static unsigned long ecoff_build_symbols
1450 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1451 unsigned long offset));
1452 static unsigned long ecoff_build_procs
1453 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1454 unsigned long offset));
1455 static unsigned long ecoff_build_aux
1456 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1457 unsigned long offset));
1458 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1459 unsigned long offset,
1461 static unsigned long ecoff_build_ss
1462 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1463 unsigned long offset));
1464 static unsigned long ecoff_build_fdr
1465 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1466 unsigned long offset));
1467 static void ecoff_setup_ext PARAMS ((void));
1468 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1469 static page_t *allocate_page PARAMS ((void));
1470 static scope_t *allocate_scope PARAMS ((void));
1471 static void free_scope PARAMS ((scope_t *ptr));
1472 static vlinks_t *allocate_vlinks PARAMS ((void));
1473 static shash_t *allocate_shash PARAMS ((void));
1474 static thash_t *allocate_thash PARAMS ((void));
1475 static tag_t *allocate_tag PARAMS ((void));
1476 static void free_tag PARAMS ((tag_t *ptr));
1477 static forward_t *allocate_forward PARAMS ((void));
1478 static thead_t *allocate_thead PARAMS ((void));
1479 static void free_thead PARAMS ((thead_t *ptr));
1480 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1481 static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int));
1483 /* This function should be called when the assembler starts up. */
1486 ecoff_read_begin_hook ()
1488 tag_hash = hash_new ();
1489 top_tag_head = allocate_thead ();
1490 top_tag_head->first_tag = (tag_t *) NULL;
1491 top_tag_head->free = (thead_t *) NULL;
1492 top_tag_head->prev = cur_tag_head;
1493 cur_tag_head = top_tag_head;
1496 /* This function should be called when a symbol is created. */
1499 ecoff_symbol_new_hook (symbolP)
1502 if (cur_file_ptr == (efdr_t *) NULL)
1503 add_file ((const char *) NULL, 0);
1504 symbolP->ecoff_file = cur_file_ptr;
1505 symbolP->ecoff_symbol = NULL;
1506 symbolP->ecoff_extern_size = 0;
1509 /* Add a page to a varray object. */
1512 add_varray_page (vp)
1513 varray_t *vp; /* varray to add page to */
1515 vlinks_t *new_links = allocate_vlinks ();
1518 if (vp->object_size > 1)
1519 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1522 new_links->datum = allocate_page ();
1524 alloc_counts[(int)alloc_type_varray].total_alloc++;
1525 alloc_counts[(int)alloc_type_varray].total_pages++;
1527 new_links->start_index = vp->num_allocated;
1528 vp->objects_last_page = 0;
1530 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1531 vp->first = vp->last = new_links;
1533 { /* 2nd or greater allocation */
1534 new_links->prev = vp->last;
1535 vp->last->next = new_links;
1536 vp->last = new_links;
1540 /* Add a string (and null pad) to one of the string tables. */
1543 add_string (vp, hash_tbl, str, ret_hash)
1544 varray_t *vp; /* string obstack */
1545 struct hash_control *hash_tbl; /* ptr to hash table */
1546 const char *str; /* string */
1547 shash_t **ret_hash; /* return hash pointer */
1549 register unsigned long len = strlen (str);
1550 register shash_t *hash_ptr;
1552 if (len >= PAGE_USIZE)
1553 as_fatal ("String too big (%lu bytes)", len);
1555 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1556 if (hash_ptr == (shash_t *) NULL)
1558 register const char *err;
1560 if (vp->objects_last_page + len >= PAGE_USIZE)
1563 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1564 add_varray_page (vp);
1567 hash_ptr = allocate_shash ();
1568 hash_ptr->indx = vp->num_allocated;
1570 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1572 vp->objects_last_page += len + 1;
1573 vp->num_allocated += len + 1;
1575 strcpy (hash_ptr->string, str);
1577 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1579 as_fatal ("Inserting \"%s\" into string hash table: %s",
1583 if (ret_hash != (shash_t **) NULL)
1584 *ret_hash = hash_ptr;
1586 return hash_ptr->indx;
1589 /* Add debugging information for a symbol. */
1592 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1593 const char *str; /* symbol name */
1594 st_t type; /* symbol type */
1595 sc_t storage; /* storage class */
1596 symbolS *sym_value; /* associated symbol. */
1597 symint_t value; /* value of symbol */
1598 symint_t indx; /* index to local/aux. syms */
1601 register scope_t *pscope;
1602 register thead_t *ptag_head;
1603 register tag_t *ptag;
1604 register tag_t *ptag_next;
1605 register varray_t *vp;
1606 register int scope_delta = 0;
1607 shash_t *hash_ptr = (shash_t *) NULL;
1609 if (cur_file_ptr == (efdr_t *) NULL)
1610 as_fatal ("no current file pointer");
1612 vp = &cur_file_ptr->symbols;
1614 if (vp->objects_last_page == vp->objects_per_page)
1615 add_varray_page (vp);
1617 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1619 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1620 psym->name = S_GET_NAME (sym_value);
1623 psym->as_sym = sym_value;
1624 if (sym_value != (symbolS *) NULL)
1625 sym_value->ecoff_symbol = psym;
1626 psym->file_ptr = cur_file_ptr;
1627 psym->proc_ptr = cur_proc_ptr;
1628 psym->begin_ptr = (localsym_t *) NULL;
1629 psym->index_ptr = (aux_t *) NULL;
1630 psym->forward_ref = (forward_t *) NULL;
1631 psym->sym_index = -1;
1632 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1633 psym->ecoff_sym.asym.value = value;
1634 psym->ecoff_sym.asym.st = (unsigned) type;
1635 psym->ecoff_sym.asym.sc = (unsigned) storage;
1636 psym->ecoff_sym.asym.index = indx;
1638 /* If there is an associated symbol, we wait until the end of the
1639 assembly before deciding where to put the name (it may be just an
1640 external symbol). Otherwise, this is just a debugging symbol and
1641 the name should go with the current file. */
1642 if (sym_value == (symbolS *) NULL)
1643 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1645 : add_string (&cur_file_ptr->strings,
1646 cur_file_ptr->str_hash,
1650 ++vp->num_allocated;
1652 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1655 /* Save the symbol within the hash table if this is a static
1656 item, and it has a name. */
1657 if (hash_ptr != (shash_t *) NULL
1658 && (type == st_Global || type == st_Static || type == st_Label
1659 || type == st_Proc || type == st_StaticProc))
1660 hash_ptr->sym_ptr = psym;
1662 /* push or pop a scope if appropriate. */
1668 case st_File: /* beginning of file */
1669 case st_Proc: /* procedure */
1670 case st_StaticProc: /* static procedure */
1671 case st_Block: /* begin scope */
1672 pscope = allocate_scope ();
1673 pscope->prev = cur_file_ptr->cur_scope;
1674 pscope->lsym = psym;
1675 pscope->type = type;
1676 cur_file_ptr->cur_scope = pscope;
1678 if (type != st_File)
1681 /* For every block type except file, struct, union, or
1682 enumeration blocks, push a level on the tag stack. We omit
1683 file types, so that tags can span file boundaries. */
1684 if (type != st_File && storage != sc_Info)
1686 ptag_head = allocate_thead ();
1687 ptag_head->first_tag = 0;
1688 ptag_head->prev = cur_tag_head;
1689 cur_tag_head = ptag_head;
1694 pscope = cur_file_ptr->cur_scope;
1695 if (pscope == (scope_t *) NULL)
1696 as_fatal ("too many st_End's");
1699 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1701 psym->begin_ptr = pscope->lsym;
1703 if (begin_type != st_File)
1706 /* Except for file, structure, union, or enumeration end
1707 blocks remove all tags created within this scope. */
1708 if (begin_type != st_File && storage != sc_Info)
1710 ptag_head = cur_tag_head;
1711 cur_tag_head = ptag_head->prev;
1713 for (ptag = ptag_head->first_tag;
1714 ptag != (tag_t *) NULL;
1717 if (ptag->forward_ref != (forward_t *) NULL)
1718 add_unknown_tag (ptag);
1720 ptag_next = ptag->same_block;
1721 ptag->hash_ptr->tag_ptr = ptag->same_name;
1725 free_thead (ptag_head);
1728 cur_file_ptr->cur_scope = pscope->prev;
1730 /* block begin gets next sym #. This is set when we know
1731 the symbol index value. */
1733 /* Functions push two or more aux words as follows:
1734 1st word: index+1 of the end symbol (filled in later).
1735 2nd word: type of the function (plus any aux words needed).
1736 Also, tie the external pointer back to the function begin symbol. */
1737 if (begin_type != st_File && begin_type != st_Block)
1740 varray_t *svp = &cur_file_ptr->aux_syms;
1742 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1743 pscope->lsym->index_ptr =
1744 &svp->last->datum->aux[svp->objects_last_page - 1];
1745 ty = add_aux_sym_tir (&last_func_type_info,
1747 &cur_file_ptr->thash_head[0]);
1749 /* This seems to be unnecessary. I'm not even sure what it is
1750 * intended to do. It's from mips-tfile.
1751 * if (last_func_sym_value != (symbolS *) NULL)
1753 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1754 * last_func_sym_value->index = ty;
1759 free_scope (pscope);
1763 cur_file_ptr->nested_scopes += scope_delta;
1766 if (debug && type != st_File
1767 && (debug > 2 || type == st_Block || type == st_End
1768 || type == st_Proc || type == st_StaticProc))
1770 char *sc_str = sc_to_string (storage);
1771 char *st_str = st_to_string (type);
1772 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1775 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1776 value, depth, sc_str);
1778 if (str_start && str_end_p1 - str_start > 0)
1779 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1782 unsigned long len = strlen (st_str);
1783 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1791 /* Add an auxiliary symbol (passing a symint). This is actually used
1792 for integral aux types, not just symints. */
1795 add_aux_sym_symint (aux_word)
1796 symint_t aux_word; /* auxiliary information word */
1798 register varray_t *vp;
1799 register aux_t *aux_ptr;
1801 if (cur_file_ptr == (efdr_t *) NULL)
1802 as_fatal ("no current file pointer");
1804 vp = &cur_file_ptr->aux_syms;
1806 if (vp->objects_last_page == vp->objects_per_page)
1807 add_varray_page (vp);
1809 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1810 aux_ptr->type = aux_isym;
1811 aux_ptr->data.isym = aux_word;
1813 return vp->num_allocated++;
1817 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1820 add_aux_sym_rndx (file_index, sym_index)
1824 register varray_t *vp;
1825 register aux_t *aux_ptr;
1827 if (cur_file_ptr == (efdr_t *) NULL)
1828 as_fatal ("no current file pointer");
1830 vp = &cur_file_ptr->aux_syms;
1832 if (vp->objects_last_page == vp->objects_per_page)
1833 add_varray_page (vp);
1835 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1836 aux_ptr->type = aux_rndx;
1837 aux_ptr->data.rndx.rfd = file_index;
1838 aux_ptr->data.rndx.index = sym_index;
1840 return vp->num_allocated++;
1843 /* Add an auxiliary symbol (passing the basic type and possibly
1844 type qualifiers). */
1847 add_aux_sym_tir (t, state, hash_tbl)
1848 type_info_t *t; /* current type information */
1849 hash_state_t state; /* whether to hash type or not */
1850 thash_t **hash_tbl; /* pointer to hash table to use */
1852 register varray_t *vp;
1853 register aux_t *aux_ptr;
1854 static AUXU init_aux;
1859 if (cur_file_ptr == (efdr_t *) NULL)
1860 as_fatal ("no current file pointer");
1862 vp = &cur_file_ptr->aux_syms;
1865 aux.ti.bt = (int) t->basic_type;
1866 aux.ti.continued = 0;
1867 aux.ti.fBitfield = t->bitfield;
1869 aux.ti.tq0 = (int) t->type_qualifiers[0];
1870 aux.ti.tq1 = (int) t->type_qualifiers[1];
1871 aux.ti.tq2 = (int) t->type_qualifiers[2];
1872 aux.ti.tq3 = (int) t->type_qualifiers[3];
1873 aux.ti.tq4 = (int) t->type_qualifiers[4];
1874 aux.ti.tq5 = (int) t->type_qualifiers[5];
1877 /* For anything that adds additional information, we must not hash,
1878 so check here, and reset our state. */
1880 if (state != hash_no
1881 && (t->type_qualifiers[0] == tq_Array
1882 || t->type_qualifiers[1] == tq_Array
1883 || t->type_qualifiers[2] == tq_Array
1884 || t->type_qualifiers[3] == tq_Array
1885 || t->type_qualifiers[4] == tq_Array
1886 || t->type_qualifiers[5] == tq_Array
1887 || t->basic_type == bt_Struct
1888 || t->basic_type == bt_Union
1889 || t->basic_type == bt_Enum
1891 || t->num_dims > 0))
1894 /* See if we can hash this type, and save some space, but some types
1895 can't be hashed (because they contain arrays or continuations),
1896 and others can be put into the hash list, but cannot use existing
1897 types because other aux entries precede this one. */
1899 if (state != hash_no)
1901 register thash_t *hash_ptr;
1902 register symint_t hi;
1904 hi = aux.isym & ((1 << HASHBITS) - 1);
1907 for (hash_ptr = hash_tbl[hi];
1908 hash_ptr != (thash_t *)0;
1909 hash_ptr = hash_ptr->next)
1911 if (aux.isym == hash_ptr->type.isym)
1915 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1916 return hash_ptr->indx;
1918 if (hash_ptr == (thash_t *) NULL)
1920 hash_ptr = allocate_thash ();
1921 hash_ptr->next = hash_tbl[hi];
1922 hash_ptr->type = aux;
1923 hash_ptr->indx = vp->num_allocated;
1924 hash_tbl[hi] = hash_ptr;
1928 /* Everything is set up, add the aux symbol. */
1929 if (vp->objects_last_page == vp->objects_per_page)
1930 add_varray_page (vp);
1932 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1933 aux_ptr->type = aux_tir;
1934 aux_ptr->data = aux;
1936 ret = vp->num_allocated++;
1938 /* Add bitfield length if it exists.
1940 NOTE: Mips documentation claims bitfield goes at the end of the
1941 AUX record, but the DECstation compiler emits it here.
1942 (This would only make a difference for enum bitfields.)
1944 Also note: We use the last size given since gcc may emit 2
1945 for an enum bitfield. */
1948 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1951 /* Add tag information if needed. Structure, union, and enum
1952 references add 2 aux symbols: a [file index, symbol index]
1953 pointer to the structure type, and the current file index. */
1955 if (t->basic_type == bt_Struct
1956 || t->basic_type == bt_Union
1957 || t->basic_type == bt_Enum)
1959 register symint_t file_index = t->tag_ptr->ifd;
1960 register localsym_t *sym = t->tag_ptr->sym;
1961 register forward_t *forward_ref = allocate_forward ();
1963 if (sym != (localsym_t *) NULL)
1965 forward_ref->next = sym->forward_ref;
1966 sym->forward_ref = forward_ref;
1970 forward_ref->next = t->tag_ptr->forward_ref;
1971 t->tag_ptr->forward_ref = forward_ref;
1974 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1975 forward_ref->index_ptr
1976 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1978 (void) add_aux_sym_symint (file_index);
1979 forward_ref->ifd_ptr
1980 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1983 /* Add information about array bounds if they exist. */
1984 for (i = 0; i < t->num_dims; i++)
1986 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1987 cur_file_ptr->int_type);
1989 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1990 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1991 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1992 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1994 : (t->sizes[i] * 8) / t->dimensions[i]);
1997 /* NOTE: Mips documentation claims that the bitfield width goes here.
1998 But it needs to be emitted earlier. */
2003 /* Add a tag to the tag table (unless it already exists). */
2006 get_tag (tag, sym, basic_type)
2007 const char *tag; /* tag name */
2008 localsym_t *sym; /* tag start block */
2009 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2015 if (cur_file_ptr == (efdr_t *) NULL)
2016 as_fatal ("no current file pointer");
2018 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2020 if (hash_ptr != (shash_t *) NULL
2021 && hash_ptr->tag_ptr != (tag_t *) NULL)
2023 tag_ptr = hash_ptr->tag_ptr;
2024 if (sym != (localsym_t *) NULL)
2026 tag_ptr->basic_type = basic_type;
2027 tag_ptr->ifd = cur_file_ptr->file_index;
2033 if (hash_ptr == (shash_t *) NULL)
2037 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2039 hash_ptr = allocate_shash ();
2040 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2042 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2044 hash_ptr->string = perm;
2047 tag_ptr = allocate_tag ();
2048 tag_ptr->forward_ref = (forward_t *) NULL;
2049 tag_ptr->hash_ptr = hash_ptr;
2050 tag_ptr->same_name = hash_ptr->tag_ptr;
2051 tag_ptr->basic_type = basic_type;
2053 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2055 : cur_file_ptr->file_index);
2056 tag_ptr->same_block = cur_tag_head->first_tag;
2058 cur_tag_head->first_tag = tag_ptr;
2059 hash_ptr->tag_ptr = tag_ptr;
2064 /* Add an unknown {struct, union, enum} tag. */
2067 add_unknown_tag (ptag)
2068 tag_t *ptag; /* pointer to tag information */
2070 shash_t *hash_ptr = ptag->hash_ptr;
2071 char *name = hash_ptr->string;
2078 char *agg_type = "{unknown aggregate type}";
2079 switch (ptag->basic_type)
2081 case bt_Struct: agg_type = "struct"; break;
2082 case bt_Union: agg_type = "union"; break;
2083 case bt_Enum: agg_type = "enum"; break;
2087 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2088 hash_ptr->len, name_start);
2092 sym = add_ecoff_symbol (name,
2099 (void) add_ecoff_symbol (name,
2106 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2108 *pf = ptag->forward_ref;
2111 /* Add a procedure to the current file's list of procedures, and record
2112 this is the current procedure. */
2115 add_procedure (func)
2116 char *func; /* func name */
2118 register varray_t *vp;
2119 register proc_t *new_proc_ptr;
2123 fputc ('\n', stderr);
2126 if (cur_file_ptr == (efdr_t *) NULL)
2127 as_fatal ("no current file pointer");
2129 vp = &cur_file_ptr->procs;
2131 if (vp->objects_last_page == vp->objects_per_page)
2132 add_varray_page (vp);
2134 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2136 if (first_proc_ptr == (proc_t *) NULL)
2137 first_proc_ptr = new_proc_ptr;
2139 vp->num_allocated++;
2141 new_proc_ptr->pdr.isym = -1;
2142 new_proc_ptr->pdr.iline = -1;
2143 new_proc_ptr->pdr.lnLow = -1;
2144 new_proc_ptr->pdr.lnHigh = -1;
2146 /* Push the start of the function. */
2147 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2148 symbol_find_or_make (func),
2149 (symint_t) 0, (symint_t) 0);
2153 /* Fill in the linenos preceding the .ent, if any. */
2154 if (noproc_lineno != (lineno_list_t *) NULL)
2158 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2159 l->proc = new_proc_ptr;
2160 *last_lineno_ptr = noproc_lineno;
2161 while (*last_lineno_ptr != NULL)
2162 last_lineno_ptr = &(*last_lineno_ptr)->next;
2163 noproc_lineno = (lineno_list_t *) NULL;
2167 /* Add a new filename, and set up all of the file relative
2168 virtual arrays (strings, symbols, aux syms, etc.). Record
2169 where the current file structure lives. */
2172 add_file (file_name, indx)
2173 const char *file_name; /* file name */
2176 register int first_ch;
2177 register efdr_t *fil_ptr;
2181 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2184 /* If the file name is NULL, then no .file symbol appeared, and we
2185 want to use the actual file name. */
2186 if (file_name == (const char *) NULL)
2190 if (first_file != (efdr_t *) NULL)
2191 as_fatal ("fake .file after real one");
2192 as_where (&file, (unsigned int *) NULL);
2193 file_name = (const char *) file;
2194 generate_asm_line_stab = 1;
2197 generate_asm_line_stab = 0;
2201 listing_source_file (file_name);
2204 current_stabs_filename = file_name;
2206 /* If we're creating stabs, then we don't actually make a new FDR.
2207 Instead, we just create a stabs symbol. */
2210 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2211 symbol_new ("L0\001", now_seg,
2212 (valueT) frag_now_fix (),
2214 0, ECOFF_MARK_STAB (N_SOL));
2218 first_ch = *file_name;
2220 /* See if the file has already been created. */
2221 for (fil_ptr = first_file;
2222 fil_ptr != (efdr_t *) NULL;
2223 fil_ptr = fil_ptr->next_file)
2225 if (first_ch == fil_ptr->name[0]
2226 && strcmp (file_name, fil_ptr->name) == 0)
2228 cur_file_ptr = fil_ptr;
2233 /* If this is a new file, create it. */
2234 if (fil_ptr == (efdr_t *) NULL)
2236 if (file_desc.objects_last_page == file_desc.objects_per_page)
2237 add_varray_page (&file_desc);
2239 fil_ptr = cur_file_ptr =
2240 &file_desc.last->datum->file[file_desc.objects_last_page++];
2241 *fil_ptr = init_file;
2243 fil_ptr->file_index = current_file_idx++;
2244 ++file_desc.num_allocated;
2246 /* Allocate the string hash table. */
2247 fil_ptr->str_hash = hash_new ();
2249 /* Make sure 0 byte in string table is null */
2250 add_string (&fil_ptr->strings,
2255 if (strlen (file_name) > PAGE_USIZE - 2)
2256 as_fatal ("Filename goes over one page boundary.");
2258 /* Push the start of the filename. We assume that the filename
2259 will be stored at string offset 1. */
2260 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2262 (symint_t) 0, (symint_t) 0);
2263 fil_ptr->fdr.rss = 1;
2264 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2266 /* Update the linked list of file descriptors. */
2267 *last_file_ptr = fil_ptr;
2268 last_file_ptr = &fil_ptr->next_file;
2270 /* Add void & int types to the file (void should be first to catch
2271 errant 0's within the index fields). */
2272 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2274 &cur_file_ptr->thash_head[0]);
2276 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2278 &cur_file_ptr->thash_head[0]);
2279 if (generate_asm_line_stab)
2281 static char itstr[] = "void:t1=1";
2283 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2284 symbol_new ("L0\001", now_seg,
2285 (valueT) frag_now_fix (),
2287 0, ECOFF_MARK_STAB (N_SO));
2288 (void) add_ecoff_symbol (itstr, st_Nil, sc_Nil,
2289 (symbolS *)NULL, 0, ECOFF_MARK_STAB (N_LSYM));
2296 /* Convert storage class to string. */
2299 sc_to_string(storage_class)
2302 switch(storage_class)
2304 case sc_Nil: return "Nil,";
2305 case sc_Text: return "Text,";
2306 case sc_Data: return "Data,";
2307 case sc_Bss: return "Bss,";
2308 case sc_Register: return "Register,";
2309 case sc_Abs: return "Abs,";
2310 case sc_Undefined: return "Undefined,";
2311 case sc_CdbLocal: return "CdbLocal,";
2312 case sc_Bits: return "Bits,";
2313 case sc_CdbSystem: return "CdbSystem,";
2314 case sc_RegImage: return "RegImage,";
2315 case sc_Info: return "Info,";
2316 case sc_UserStruct: return "UserStruct,";
2317 case sc_SData: return "SData,";
2318 case sc_SBss: return "SBss,";
2319 case sc_RData: return "RData,";
2320 case sc_Var: return "Var,";
2321 case sc_Common: return "Common,";
2322 case sc_SCommon: return "SCommon,";
2323 case sc_VarRegister: return "VarRegister,";
2324 case sc_Variant: return "Variant,";
2325 case sc_SUndefined: return "SUndefined,";
2326 case sc_Init: return "Init,";
2327 case sc_Max: return "Max,";
2337 /* Convert symbol type to string. */
2340 st_to_string(symbol_type)
2345 case st_Nil: return "Nil,";
2346 case st_Global: return "Global,";
2347 case st_Static: return "Static,";
2348 case st_Param: return "Param,";
2349 case st_Local: return "Local,";
2350 case st_Label: return "Label,";
2351 case st_Proc: return "Proc,";
2352 case st_Block: return "Block,";
2353 case st_End: return "End,";
2354 case st_Member: return "Member,";
2355 case st_Typedef: return "Typedef,";
2356 case st_File: return "File,";
2357 case st_RegReloc: return "RegReloc,";
2358 case st_Forward: return "Forward,";
2359 case st_StaticProc: return "StaticProc,";
2360 case st_Constant: return "Constant,";
2361 case st_Str: return "String,";
2362 case st_Number: return "Number,";
2363 case st_Expr: return "Expr,";
2364 case st_Type: return "Type,";
2365 case st_Max: return "Max,";
2373 /* Parse .begin directives which have a label as the first argument
2374 which gives the location of the start of the block. */
2377 ecoff_directive_begin (ignore)
2383 if (cur_file_ptr == (efdr_t *) NULL)
2385 as_warn (".begin directive without a preceding .file directive");
2386 demand_empty_rest_of_line ();
2390 if (cur_proc_ptr == (proc_t *) NULL)
2392 as_warn (".begin directive without a preceding .ent directive");
2393 demand_empty_rest_of_line ();
2397 name = input_line_pointer;
2398 name_end = get_symbol_end ();
2400 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2401 symbol_find_or_make (name),
2402 (symint_t) 0, (symint_t) 0);
2404 *input_line_pointer = name_end;
2406 /* The line number follows, but we don't use it. */
2407 (void) get_absolute_expression ();
2408 demand_empty_rest_of_line ();
2411 /* Parse .bend directives which have a label as the first argument
2412 which gives the location of the end of the block. */
2415 ecoff_directive_bend (ignore)
2422 if (cur_file_ptr == (efdr_t *) NULL)
2424 as_warn (".bend directive without a preceding .file directive");
2425 demand_empty_rest_of_line ();
2429 if (cur_proc_ptr == (proc_t *) NULL)
2431 as_warn (".bend directive without a preceding .ent directive");
2432 demand_empty_rest_of_line ();
2436 name = input_line_pointer;
2437 name_end = get_symbol_end ();
2439 /* The value is the distance between the .bend directive and the
2440 corresponding symbol. We fill in the offset when we write out
2442 endsym = symbol_find (name);
2443 if (endsym == (symbolS *) NULL)
2444 as_warn (".bend directive names unknown symbol");
2446 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2447 (symint_t) 0, (symint_t) 0);
2449 *input_line_pointer = name_end;
2451 /* The line number follows, but we don't use it. */
2452 (void) get_absolute_expression ();
2453 demand_empty_rest_of_line ();
2456 /* COFF debugging information is provided as a series of directives
2457 (.def, .scl, etc.). We build up information as we read the
2458 directives in the following static variables, and file it away when
2459 we reach the .endef directive. */
2460 static char *coff_sym_name;
2461 static type_info_t coff_type;
2462 static sc_t coff_storage_class;
2463 static st_t coff_symbol_typ;
2464 static int coff_is_function;
2465 static char *coff_tag;
2466 static valueT coff_value;
2467 symbolS *coff_sym_value;
2468 static int coff_inside_enumeration;
2470 /* Handle a .def directive: start defining a symbol. */
2473 ecoff_directive_def (ignore)
2481 name = input_line_pointer;
2482 name_end = get_symbol_end ();
2484 if (coff_sym_name != (char *) NULL)
2485 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2486 else if (*name == '\0')
2487 as_warn ("Empty symbol name in .def; ignored");
2490 if (coff_sym_name != (char *) NULL)
2491 free (coff_sym_name);
2492 if (coff_tag != (char *) NULL)
2494 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2495 strcpy (coff_sym_name, name);
2496 coff_type = type_info_init;
2497 coff_storage_class = sc_Nil;
2498 coff_symbol_typ = st_Nil;
2499 coff_is_function = 0;
2500 coff_tag = (char *) NULL;
2502 coff_sym_value = (symbolS *) NULL;
2505 *input_line_pointer = name_end;
2507 demand_empty_rest_of_line ();
2510 /* Handle a .dim directive, used to give dimensions for an array. The
2511 arguments are comma separated numbers. mips-tfile assumes that
2512 there will not be more than 6 dimensions, and gdb won't read any
2513 more than that anyhow, so I will also make that assumption. */
2516 ecoff_directive_dim (ignore)
2522 if (coff_sym_name == (char *) NULL)
2524 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2525 demand_empty_rest_of_line ();
2529 for (i = 0; i < N_TQ; i++)
2532 dimens[i] = get_absolute_expression ();
2533 if (*input_line_pointer == ',')
2534 ++input_line_pointer;
2537 if (*input_line_pointer != '\n'
2538 && *input_line_pointer != ';')
2539 as_warn ("Badly formed .dim directive");
2547 /* The dimensions are stored away in reverse order. */
2550 if (coff_type.num_dims >= N_TQ)
2552 as_warn ("Too many .dim entries");
2555 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2556 ++coff_type.num_dims;
2559 demand_empty_rest_of_line ();
2562 /* Handle a .scl directive, which sets the COFF storage class of the
2566 ecoff_directive_scl (ignore)
2571 if (coff_sym_name == (char *) NULL)
2573 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2574 demand_empty_rest_of_line ();
2578 val = get_absolute_expression ();
2580 coff_symbol_typ = map_coff_sym_type[val];
2581 coff_storage_class = map_coff_storage[val];
2583 demand_empty_rest_of_line ();
2586 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2587 .size can have multiple arguments. We humor it, although gcc will
2588 never generate more than one argument. */
2591 ecoff_directive_size (ignore)
2597 if (coff_sym_name == (char *) NULL)
2599 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2600 demand_empty_rest_of_line ();
2604 for (i = 0; i < N_TQ; i++)
2607 sizes[i] = get_absolute_expression ();
2608 if (*input_line_pointer == ',')
2609 ++input_line_pointer;
2612 if (*input_line_pointer != '\n'
2613 && *input_line_pointer != ';')
2614 as_warn ("Badly formed .size directive");
2622 /* The sizes are stored away in reverse order. */
2625 if (coff_type.num_sizes >= N_TQ)
2627 as_warn ("Too many .size entries");
2630 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2631 ++coff_type.num_sizes;
2634 demand_empty_rest_of_line ();
2637 /* Handle the .type directive, which gives the COFF type of the
2641 ecoff_directive_type (ignore)
2648 if (coff_sym_name == (char *) NULL)
2650 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2651 demand_empty_rest_of_line ();
2655 val = get_absolute_expression ();
2657 coff_type.orig_type = BTYPE (val);
2658 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2660 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2661 while (val &~ N_BTMASK)
2663 if (tq_ptr == &coff_type.type_qualifiers[0])
2665 as_warn ("Too derived values in .type argument");
2670 else if (ISFCN (val))
2671 *--tq_ptr = tq_Proc;
2672 else if (ISARY (val))
2673 *--tq_ptr = tq_Array;
2675 as_fatal ("Unrecognized .type argument");
2680 tq_shft = &coff_type.type_qualifiers[0];
2681 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2682 *tq_shft++ = *tq_ptr++;
2684 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2686 /* If this is a function, ignore it, so that we don't get two
2687 entries (one from the .ent, and one for the .def that
2688 precedes it). Save the type information so that the end
2689 block can properly add it after the begin block index. For
2690 MIPS knows what reason, we must strip off the function type
2692 coff_is_function = 1;
2693 tq_shft[-1] = tq_Nil;
2696 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2697 *tq_shft++ = tq_Nil;
2699 demand_empty_rest_of_line ();
2702 /* Handle the .tag directive, which gives the name of a structure,
2706 ecoff_directive_tag (ignore)
2712 if (coff_sym_name == (char *) NULL)
2714 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2715 demand_empty_rest_of_line ();
2719 name = input_line_pointer;
2720 name_end = get_symbol_end ();
2722 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2723 strcpy (coff_tag, name);
2725 *input_line_pointer = name_end;
2727 demand_empty_rest_of_line ();
2730 /* Handle the .val directive, which gives the value of the symbol. It
2731 may be the name of a static or global symbol. */
2734 ecoff_directive_val (ignore)
2737 if (coff_sym_name == (char *) NULL)
2739 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2740 demand_empty_rest_of_line ();
2744 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2745 coff_value = get_absolute_expression ();
2751 name = input_line_pointer;
2752 name_end = get_symbol_end ();
2754 if (strcmp (name, ".") == 0)
2755 as_warn ("`.val .' not supported");
2757 coff_sym_value = symbol_find_or_make (name);
2759 *input_line_pointer = name_end;
2761 /* FIXME: gcc can generate address expressions here in unusual
2762 cases (search for "obscure" in sdbout.c), although this is
2763 very unlikely for a MIPS chip. */
2766 demand_empty_rest_of_line ();
2769 /* Handle the .endef directive, which terminates processing of COFF
2770 debugging information for a symbol. */
2773 ecoff_directive_endef (ignore)
2780 demand_empty_rest_of_line ();
2782 if (coff_sym_name == (char *) NULL)
2784 as_warn (".endef pseudo-op used before .def; ignored");
2788 name = coff_sym_name;
2789 coff_sym_name = (char *) NULL;
2791 /* If the symbol is a static or external, we have already gotten the
2792 appropriate type and class, so make sure we don't override those
2793 values. This is needed because there are some type and classes
2794 that are not in COFF, such as short data, etc. */
2795 if (coff_sym_value != (symbolS *) NULL)
2797 coff_symbol_typ = st_Nil;
2798 coff_storage_class = sc_Nil;
2801 coff_type.extra_sizes = coff_tag != (char *) NULL;
2802 if (coff_type.num_dims > 0)
2804 int diff = coff_type.num_dims - coff_type.num_sizes;
2805 int i = coff_type.num_dims - 1;
2808 if (coff_type.num_sizes != 1 || diff < 0)
2810 as_warn ("Bad COFF debugging info");
2814 /* If this is an array, make sure the same number of dimensions
2815 and sizes were passed, creating extra sizes for multiply
2816 dimensioned arrays if not passed. */
2817 coff_type.extra_sizes = 0;
2820 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2823 coff_type.sizes[j] = (((j - diff) >= 0)
2824 ? coff_type.sizes[j - diff]
2829 coff_type.num_sizes = i + 1;
2830 for (i--; i >= 0; i--)
2831 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2832 / coff_type.dimensions[i + 1]);
2835 else if (coff_symbol_typ == st_Member
2836 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2838 /* Is this a bitfield? This is indicated by a structure memeber
2839 having a size field that isn't an array. */
2840 coff_type.bitfield = 1;
2843 /* Except for enumeration members & begin/ending of scopes, put the
2844 type word in the aux. symbol table. */
2845 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2847 else if (coff_inside_enumeration)
2848 indx = cur_file_ptr->void_type;
2851 if (coff_type.basic_type == bt_Struct
2852 || coff_type.basic_type == bt_Union
2853 || coff_type.basic_type == bt_Enum)
2855 if (coff_tag == (char *) NULL)
2857 as_warn ("No tag specified for %s", name);
2861 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2862 coff_type.basic_type);
2865 if (coff_is_function)
2867 last_func_type_info = coff_type;
2868 last_func_sym_value = coff_sym_value;
2872 indx = add_aux_sym_tir (&coff_type,
2874 &cur_file_ptr->thash_head[0]);
2877 /* Do any last minute adjustments that are necessary. */
2878 switch (coff_symbol_typ)
2883 /* For the beginning of structs, unions, and enumerations, the
2884 size info needs to be passed in the value field. */
2886 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2889 as_warn ("Bad COFF debugging information");
2893 coff_value = coff_type.sizes[0];
2895 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2898 /* For the end of structs, unions, and enumerations, omit the
2899 name which is always ".eos". This needs to be done last, so
2900 that any error reporting above gives the correct name. */
2903 name = (char *) NULL;
2905 coff_inside_enumeration = 0;
2908 /* Members of structures and unions that aren't bitfields, need
2909 to adjust the value from a byte offset to a bit offset.
2910 Members of enumerations do not have the value adjusted, and
2911 can be distinguished by indx == indexNil. For enumerations,
2912 update the maximum enumeration value. */
2914 if (! coff_type.bitfield && ! coff_inside_enumeration)
2920 /* Add the symbol. */
2921 sym = add_ecoff_symbol (name,
2925 (symint_t) coff_value,
2928 /* deal with struct, union, and enum tags. */
2929 if (coff_symbol_typ == st_Block)
2931 /* Create or update the tag information. */
2932 tag_t *tag_ptr = get_tag (name,
2934 coff_type.basic_type);
2937 /* Remember any forward references. */
2938 for (pf = &sym->forward_ref;
2939 *pf != (forward_t *) NULL;
2942 *pf = tag_ptr->forward_ref;
2943 tag_ptr->forward_ref = (forward_t *) NULL;
2947 /* Parse .end directives. */
2950 ecoff_directive_end (ignore)
2958 if (cur_file_ptr == (efdr_t *) NULL)
2960 as_warn (".end directive without a preceding .file directive");
2961 demand_empty_rest_of_line ();
2965 if (cur_proc_ptr == (proc_t *) NULL)
2967 as_warn (".end directive without a preceding .ent directive");
2968 demand_empty_rest_of_line ();
2972 name = input_line_pointer;
2973 name_end = get_symbol_end ();
2976 if (! is_name_beginner (ch))
2978 as_warn (".end directive has no name");
2979 *input_line_pointer = name_end;
2980 demand_empty_rest_of_line ();
2984 /* The value is the distance between the .end directive and the
2985 corresponding symbol. We create a fake symbol to hold the
2986 current location, and put in the offset when we write out the
2988 ent = symbol_find (name);
2989 if (ent == (symbolS *) NULL)
2990 as_warn (".end directive names unknown symbol");
2993 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
2994 symbol_new ("L0\001", now_seg,
2995 (valueT) frag_now_fix (),
2997 (symint_t) 0, (symint_t) 0);
2998 if (generate_asm_line_stab)
3002 n = xmalloc (strlen (name) + 4);
3005 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
3006 ent, 0, ECOFF_MARK_STAB (N_FUN));
3010 cur_proc_ptr = (proc_t *) NULL;
3012 *input_line_pointer = name_end;
3013 demand_empty_rest_of_line ();
3016 /* Parse .ent directives. */
3019 ecoff_directive_ent (ignore)
3026 if (cur_file_ptr == (efdr_t *) NULL)
3027 add_file ((const char *) NULL, 0);
3029 if (cur_proc_ptr != (proc_t *) NULL)
3031 as_warn ("second .ent directive found before .end directive");
3032 demand_empty_rest_of_line ();
3036 name = input_line_pointer;
3037 name_end = get_symbol_end ();
3040 if (! is_name_beginner (ch))
3042 as_warn (".ent directive has no name");
3043 *input_line_pointer = name_end;
3044 demand_empty_rest_of_line ();
3048 add_procedure (name);
3050 *input_line_pointer = name_end;
3052 /* The .ent directive is sometimes followed by a number. I'm not
3053 really sure what the number means. I don't see any way to store
3054 the information in the PDR. The Irix 4 assembler seems to ignore
3057 if (*input_line_pointer == ',')
3059 ++input_line_pointer;
3062 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3063 (void) get_absolute_expression ();
3065 demand_empty_rest_of_line ();
3068 /* Parse .file directives. */
3071 ecoff_directive_file (ignore)
3078 if (cur_proc_ptr != (proc_t *) NULL)
3080 as_warn ("No way to handle .file within .ent/.end section");
3081 demand_empty_rest_of_line ();
3085 indx = (int) get_absolute_expression ();
3087 /* FIXME: we don't have to save the name here. */
3088 name = demand_copy_C_string (&len);
3090 add_file (name, indx - 1);
3092 demand_empty_rest_of_line ();
3095 /* Parse .fmask directives. */
3098 ecoff_directive_fmask (ignore)
3103 if (cur_proc_ptr == (proc_t *) NULL)
3105 as_warn (".fmask outside of .ent");
3106 demand_empty_rest_of_line ();
3110 if (get_absolute_expression_and_terminator (&val) != ',')
3112 as_warn ("Bad .fmask directive");
3113 --input_line_pointer;
3114 demand_empty_rest_of_line ();
3118 cur_proc_ptr->pdr.fregmask = val;
3119 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3121 demand_empty_rest_of_line ();
3124 /* Parse .frame directives. */
3127 ecoff_directive_frame (ignore)
3132 if (cur_proc_ptr == (proc_t *) NULL)
3134 as_warn (".frame outside of .ent");
3135 demand_empty_rest_of_line ();
3139 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3142 if (*input_line_pointer++ != ','
3143 || get_absolute_expression_and_terminator (&val) != ',')
3145 as_warn ("Bad .frame directive");
3146 --input_line_pointer;
3147 demand_empty_rest_of_line ();
3151 cur_proc_ptr->pdr.frameoffset = val;
3153 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3155 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3156 to Sandro. I don't yet know where this value should be stored, if
3158 demand_empty_rest_of_line ();
3164 /* Parse .mask directives. */
3167 ecoff_directive_mask (ignore)
3172 if (cur_proc_ptr == (proc_t *) NULL)
3174 as_warn (".mask outside of .ent");
3175 demand_empty_rest_of_line ();
3179 if (get_absolute_expression_and_terminator (&val) != ',')
3181 as_warn ("Bad .mask directive");
3182 --input_line_pointer;
3183 demand_empty_rest_of_line ();
3187 cur_proc_ptr->pdr.regmask = val;
3188 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3190 demand_empty_rest_of_line ();
3193 /* Parse .loc directives. */
3196 ecoff_directive_loc (ignore)
3199 lineno_list_t *list;
3202 if (cur_file_ptr == (efdr_t *) NULL)
3204 as_warn (".loc before .file");
3205 demand_empty_rest_of_line ();
3209 if (now_seg != text_section)
3211 as_warn (".loc outside of .text");
3212 demand_empty_rest_of_line ();
3216 /* Skip the file number. */
3218 get_absolute_expression ();
3221 lineno = get_absolute_expression ();
3225 listing_source_line (lineno);
3228 /* If we're building stabs, then output a special label rather than
3229 ECOFF line number info. */
3232 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3233 symbol_new ("L0\001", now_seg,
3234 (valueT) frag_now_fix (),
3240 list = allocate_lineno_list ();
3242 list->next = (lineno_list_t *) NULL;
3243 list->file = cur_file_ptr;
3244 list->proc = cur_proc_ptr;
3245 list->frag = frag_now;
3246 list->paddr = frag_now_fix ();
3247 list->lineno = lineno;
3249 /* A .loc directive will sometimes appear before a .ent directive,
3250 which means that cur_proc_ptr will be NULL here. Arrange to
3252 if (cur_proc_ptr == (proc_t *) NULL)
3256 pl = &noproc_lineno;
3257 while (*pl != (lineno_list_t *) NULL)
3263 *last_lineno_ptr = list;
3264 last_lineno_ptr = &list->next;
3268 /* Make sure the @stabs symbol is emitted. */
3276 /* Add a dummy @stabs dymbol. */
3278 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3280 (symint_t) -1, ECOFF_MARK_STAB (0));
3284 /* Handle .stabs directives. The actual parsing routine is done by a
3285 generic routine. This routine is called via OBJ_PROCESS_STAB.
3286 When this is called, input_line_pointer will be pointing at the
3287 value field of the stab.
3289 .stabs directives have five fields:
3290 "string" a string, encoding the type information.
3291 code a numeric code, defined in <stab.h>
3293 desc a zero or line number
3294 value a numeric value or an address.
3296 If the value is relocatable, we transform this into:
3297 iss points as an index into string space
3298 value value from lookup of the name
3299 st st from lookup of the name
3300 sc sc from lookup of the name
3301 index code|CODE_MASK
3303 If the value is not relocatable, we transform this into:
3304 iss points as an index into string space
3308 index code|CODE_MASK
3310 .stabn directives have four fields (string is null):
3311 code a numeric code, defined in <stab.h>
3313 desc a zero or a line number
3314 value a numeric value or an address. */
3317 ecoff_stab (what, string, type, other, desc)
3324 efdr_t *save_file_ptr = cur_file_ptr;
3330 localsym_t *hold = NULL;
3332 /* We don't handle .stabd. */
3333 if (what != 's' && what != 'n')
3335 as_bad (".stab%c is not supported", what);
3339 /* A .stabn uses a null name, not an empty string. */
3343 /* We ignore the other field. */
3345 as_warn (".stab%c: ignoring non-zero other field", what);
3347 /* Make sure we have a current file. */
3348 if (cur_file_ptr == (efdr_t *) NULL)
3350 add_file ((const char *) NULL, 0);
3351 save_file_ptr = cur_file_ptr;
3354 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3356 if (stabs_seen == 0)
3359 /* Line number stabs are handled differently, since they have two
3360 values, the line number and the address of the label. We use the
3361 index field (aka desc) to hold the line number, and the value
3362 field to hold the address. The symbol type is st_Label, which
3363 should be different from the other stabs, so that gdb can
3365 if (type == N_SLINE)
3373 listing_source_line ((unsigned int) desc);
3376 dummy_symr.index = desc;
3377 if (dummy_symr.index != desc)
3379 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3384 name = input_line_pointer;
3385 name_end = get_symbol_end ();
3387 sym = symbol_find_or_make (name);
3388 *input_line_pointer = name_end;
3398 if (listing && (type == N_SO || type == N_SOL))
3399 listing_source_file (string);
3402 if (isdigit (*input_line_pointer)
3403 || *input_line_pointer == '-'
3404 || *input_line_pointer == '+')
3408 sym = (symbolS *) NULL;
3409 value = get_absolute_expression ();
3411 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3413 as_warn ("Illegal .stab%c directive, bad character", what);
3421 name = input_line_pointer;
3422 name_end = get_symbol_end ();
3424 sym = symbol_find_or_make (name);
3430 *input_line_pointer = name_end;
3431 if (name_end == '+' || name_end == '-')
3433 ++input_line_pointer;
3434 value = get_absolute_expression ();
3435 if (name_end == '-')
3440 indx = ECOFF_MARK_STAB (type);
3443 /* Don't store the stabs symbol we are creating as the type of the
3444 ECOFF symbol. We want to compute the type of the ECOFF symbol
3446 if (sym != (symbolS *) NULL)
3447 hold = sym->ecoff_symbol;
3449 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3451 if (sym != (symbolS *) NULL)
3452 sym->ecoff_symbol = hold;
3454 /* Restore normal file type. */
3455 cur_file_ptr = save_file_ptr;
3458 /* Frob an ECOFF symbol. Small common symbols go into a special
3459 .scommon section rather than bfd_com_section. */
3462 ecoff_frob_symbol (sym)
3465 if (S_IS_COMMON (sym)
3466 && S_GET_VALUE (sym) > 0
3467 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3469 static asection scom_section;
3470 static asymbol scom_symbol;
3472 /* We must construct a fake section similar to bfd_com_section
3473 but with the name .scommon. */
3474 if (scom_section.name == NULL)
3476 scom_section = bfd_com_section;
3477 scom_section.name = ".scommon";
3478 scom_section.output_section = &scom_section;
3479 scom_section.symbol = &scom_symbol;
3480 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3481 scom_symbol = *bfd_com_section.symbol;
3482 scom_symbol.name = ".scommon";
3483 scom_symbol.section = &scom_section;
3485 S_SET_SEGMENT (sym, &scom_section);
3489 /* Add bytes to the symbolic information buffer. */
3492 ecoff_add_bytes (buf, bufend, bufptr, need)
3502 need -= *bufend - bufptr;
3503 if (need < PAGE_SIZE)
3505 want = (*bufend - *buf) + need;
3506 *buf = xrealloc (*buf, want);
3507 *bufend = *buf + want;
3511 /* Adjust the symbolic information buffer to the alignment required
3512 for the ECOFF target debugging information. */
3514 static unsigned long
3515 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3516 const struct ecoff_debug_swap *backend;
3519 unsigned long offset;
3522 bfd_size_type align;
3524 align = backend->debug_align;
3525 if ((offset & (align - 1)) != 0)
3529 add = align - (offset & (align - 1));
3530 if (*bufend - (*buf + offset) < add)
3531 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3532 memset (*buf + offset, 0, add);
3534 if (bufptrptr != (char **) NULL)
3535 *bufptrptr = *buf + offset;
3541 /* Build the line number information. */
3543 static unsigned long
3544 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3545 const struct ecoff_debug_swap *backend;
3548 unsigned long offset;
3552 register lineno_list_t *l;
3553 lineno_list_t *last;
3559 lineno_list_t first;
3561 if (linecntptr != (long *) NULL)
3564 bufptr = *buf + offset;
3566 file = (efdr_t *) NULL;
3567 proc = (proc_t *) NULL;
3568 last = (lineno_list_t *) NULL;
3573 /* For some reason the address of the first procedure is ignored
3574 when reading line numbers. This doesn't matter if the address of
3575 the first procedure is 0, but when gcc is generating MIPS
3576 embedded PIC code, it will put strings in the .text section
3577 before the first procedure. We cope by inserting a dummy line if
3578 the address of the first procedure is not 0. Hopefully this
3579 won't screw things up too badly. */
3580 if (first_proc_ptr != (proc_t *) NULL
3581 && first_lineno != (lineno_list_t *) NULL
3582 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3583 + bfd_get_section_vma (stdoutput,
3584 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3587 first.file = first_lineno->file;
3588 first.proc = first_lineno->proc;
3589 first.frag = &zero_address_frag;
3593 first.next = first_lineno;
3594 first_lineno = &first;
3597 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3602 /* Get the offset to the memory address of the next line number
3603 (in words). Do this first, so that we can skip ahead to the
3604 next useful line number entry. */
3605 if (l->next == (lineno_list_t *) NULL)
3607 /* We want a count of zero, but it will be decremented
3608 before it is used. */
3613 count = ((l->next->frag->fr_address + l->next->paddr
3614 - (l->frag->fr_address + l->paddr))
3618 /* Don't change last, so we still get the right delta. */
3623 if (l->file != file || l->proc != proc)
3625 if (l->proc != proc && proc != (proc_t *) NULL)
3626 proc->pdr.lnHigh = last->lineno;
3627 if (l->file != file && file != (efdr_t *) NULL)
3629 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3630 /* The cline field is ill-documented. This is a guess
3631 at the right value. */
3632 file->fdr.cline = totcount + count;
3633 if (linecntptr != (long *) NULL)
3634 *linecntptr += totcount + count;
3638 if (l->file != file)
3641 file->fdr.ilineBase = iline;
3642 file->fdr.cbLineOffset = c;
3644 if (l->proc != proc)
3647 if (proc != (proc_t *) NULL)
3649 proc->pdr.lnLow = l->lineno;
3650 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3651 /* The iline field is ill-documented. This is a
3652 guess at the right value. */
3653 proc->pdr.iline = totcount;
3657 last = (lineno_list_t *) NULL;
3662 /* Get the offset to this line number. */
3663 if (last == (lineno_list_t *) NULL)
3666 delta = l->lineno - last->lineno;
3668 /* Put in the offset to this line number. */
3673 /* 1 is added to each count read. */
3675 /* We can only adjust the word count by up to 15 words at a
3687 if (delta >= -7 && delta <= 7)
3689 if (bufptr >= *bufend)
3690 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3691 *bufptr++ = setcount + (delta << 4);
3699 if (*bufend - bufptr < 3)
3700 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3701 *bufptr++ = setcount + (8 << 4);
3702 if (delta < -0x8000)
3707 else if (delta > 0x7fff)
3717 *bufptr++ = set >> 8;
3718 *bufptr++ = set & 0xffff;
3723 /* Finish adjusting the count. */
3726 if (bufptr >= *bufend)
3727 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3728 /* 1 is added to each count read. */
3747 if (proc != (proc_t *) NULL)
3748 proc->pdr.lnHigh = last->lineno;
3749 if (file != (efdr_t *) NULL)
3751 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3752 file->fdr.cline = totcount;
3755 if (linecntptr != (long *) NULL)
3756 *linecntptr += totcount;
3758 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3763 /* Build and swap out the symbols. */
3765 static unsigned long
3766 ecoff_build_symbols (backend, buf, bufend, offset)
3767 const struct ecoff_debug_swap *backend;
3770 unsigned long offset;
3772 const bfd_size_type external_sym_size = backend->external_sym_size;
3773 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3774 = backend->swap_sym_out;
3777 vlinks_t *file_link;
3779 sym_out = *buf + offset;
3783 /* The symbols are stored by file. */
3784 for (file_link = file_desc.first;
3785 file_link != (vlinks_t *) NULL;
3786 file_link = file_link->next)
3793 if (file_link->next == (vlinks_t *) NULL)
3794 fil_cnt = file_desc.objects_last_page;
3796 fil_cnt = file_desc.objects_per_page;
3797 fil_ptr = file_link->datum->file;
3798 fil_end = fil_ptr + fil_cnt;
3799 for (; fil_ptr < fil_end; fil_ptr++)
3803 fil_ptr->fdr.isymBase = isym;
3805 for (sym_link = fil_ptr->symbols.first;
3806 sym_link != (vlinks_t *) NULL;
3807 sym_link = sym_link->next)
3810 localsym_t *sym_ptr;
3811 localsym_t *sym_end;
3813 if (sym_link->next == (vlinks_t *) NULL)
3814 sym_cnt = fil_ptr->symbols.objects_last_page;
3816 sym_cnt = fil_ptr->symbols.objects_per_page;
3817 sym_ptr = sym_link->datum->sym;
3818 sym_end = sym_ptr + sym_cnt;
3819 for (; sym_ptr < sym_end; sym_ptr++)
3825 know (sym_ptr->file_ptr == fil_ptr);
3827 /* If there is no associated gas symbol, then this
3828 is a pure debugging symbol. We have already
3829 added the name (if any) to fil_ptr->strings.
3830 Otherwise we must decide whether this is an
3831 external or a local symbol (actually, it may be
3832 both if the local provides additional debugging
3833 information for the external). */
3835 as_sym = sym_ptr->as_sym;
3836 if (as_sym != (symbolS *) NULL)
3840 /* The value of a block start symbol is the
3841 offset from the start of the procedure. For
3842 other symbols we just use the gas value (but
3843 we must offset it by the vma of the section,
3844 just as BFD does, because BFD will not see
3846 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3847 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3851 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3852 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3853 if (S_GET_SEGMENT (as_sym)
3854 != S_GET_SEGMENT (begin_sym))
3855 as_warn (".begin/.bend in different segments");
3856 sym_ptr->ecoff_sym.asym.value =
3857 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3860 sym_ptr->ecoff_sym.asym.value =
3861 (S_GET_VALUE (as_sym)
3862 + bfd_get_section_vma (stdoutput,
3863 S_GET_SEGMENT (as_sym)));
3865 /* Set st_Proc to st_StaticProc for local
3867 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3868 && S_IS_DEFINED (as_sym)
3869 && ! S_IS_EXTERNAL (as_sym))
3870 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3872 /* Get the type and storage class based on where
3873 the symbol actually wound up. Traditionally,
3874 N_LBRAC and N_RBRAC are *not* relocated. */
3875 indx = sym_ptr->ecoff_sym.asym.index;
3876 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3877 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3878 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3879 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3880 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3883 const char *segname;
3887 seg = S_GET_SEGMENT (as_sym);
3888 segname = segment_name (seg);
3890 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3891 && (S_IS_EXTERNAL (as_sym)
3892 || ! S_IS_DEFINED (as_sym)))
3894 else if (seg == text_section)
3899 if (! S_IS_DEFINED (as_sym))
3901 if (as_sym->ecoff_extern_size == 0
3902 || (as_sym->ecoff_extern_size
3903 > bfd_get_gp_size (stdoutput)))
3908 sym_ptr->ecoff_sym.asym.value =
3909 as_sym->ecoff_extern_size;
3912 else if (S_IS_COMMON (as_sym))
3914 if (S_GET_VALUE (as_sym) > 0
3915 && (S_GET_VALUE (as_sym)
3916 <= bfd_get_gp_size (stdoutput)))
3921 else if (seg == text_section)
3923 else if (seg == data_section)
3925 else if (strcmp (segname, ".rdata") == 0
3926 || strcmp (segname, ".rodata") == 0)
3928 else if (strcmp (segname, ".sdata") == 0)
3930 else if (seg == bss_section)
3932 else if (strcmp (segname, ".sbss") == 0)
3934 else if (seg == &bfd_abs_section)
3939 sym_ptr->ecoff_sym.asym.st = (int) st;
3940 sym_ptr->ecoff_sym.asym.sc = (int) sc;
3943 /* This is just an external symbol if it is
3944 outside a procedure and it has a type.
3945 FIXME: g++ will generate symbols which have
3946 different names in the debugging information
3947 than the actual symbol. Should we handle
3949 if ((S_IS_EXTERNAL (as_sym)
3950 || ! S_IS_DEFINED (as_sym))
3951 && sym_ptr->proc_ptr == (proc_t *) NULL
3952 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
3953 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
3956 /* If an st_end symbol has an associated gas
3957 symbol, then it is a local label created for
3958 a .bend or .end directive. Stabs line
3959 numbers will have \001 in the names. */
3961 && sym_ptr->ecoff_sym.asym.st != st_End
3962 && strchr (sym_ptr->name, '\001') == 0)
3963 sym_ptr->ecoff_sym.asym.iss =
3964 add_string (&fil_ptr->strings,
3970 /* We now know the index of this symbol; fill in
3971 locations that have been waiting for that
3973 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3975 localsym_t *begin_ptr;
3979 begin_ptr = sym_ptr->begin_ptr;
3980 know (begin_ptr->sym_index != -1);
3981 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
3982 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3983 sym_ptr->ecoff_sym.asym.iss =
3984 begin_ptr->ecoff_sym.asym.iss;
3986 begin_type = begin_ptr->ecoff_sym.asym.st;
3987 if (begin_type == st_File
3988 || begin_type == st_Block)
3990 begin_ptr->ecoff_sym.asym.index =
3991 isym - ifilesym + 1;
3992 (*swap_sym_out) (stdoutput,
3993 &begin_ptr->ecoff_sym.asym,
3996 + (begin_ptr->sym_index
3997 * external_sym_size)));
4001 know (begin_ptr->index_ptr != (aux_t *) NULL);
4002 begin_ptr->index_ptr->data.isym =
4003 isym - ifilesym + 1;
4006 /* The value of the symbol marking the end of a
4007 procedure is the size of the procedure. The
4008 value of the symbol marking the end of a
4009 block is the offset from the start of the
4010 procedure to the block. */
4011 if (begin_type == st_Proc
4012 || begin_type == st_StaticProc)
4014 know (as_sym != (symbolS *) NULL);
4015 know (begin_ptr->as_sym != (symbolS *) NULL);
4016 if (S_GET_SEGMENT (as_sym)
4017 != S_GET_SEGMENT (begin_ptr->as_sym))
4018 as_warn (".begin/.bend in different segments");
4019 sym_ptr->ecoff_sym.asym.value =
4020 (S_GET_VALUE (as_sym)
4021 - S_GET_VALUE (begin_ptr->as_sym));
4023 else if (begin_type == st_Block
4024 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4028 know (as_sym != (symbolS *) NULL);
4029 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4030 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4031 if (S_GET_SEGMENT (as_sym)
4032 != S_GET_SEGMENT (begin_sym))
4033 as_warn (".begin/.bend in different segments");
4034 sym_ptr->ecoff_sym.asym.value =
4035 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4039 for (f = sym_ptr->forward_ref;
4040 f != (forward_t *) NULL;
4044 f->ifd_ptr->data.isym = fil_ptr->file_index;
4045 f->index_ptr->data.rndx.index = isym - ifilesym;
4050 if (*bufend - sym_out < external_sym_size)
4051 sym_out = ecoff_add_bytes (buf, bufend,
4054 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4056 sym_out += external_sym_size;
4058 sym_ptr->sym_index = isym;
4060 if (sym_ptr->proc_ptr != (proc_t *) NULL
4061 && sym_ptr->proc_ptr->sym == sym_ptr)
4062 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4067 /* Record the local symbol index and file number in
4068 case this is an external symbol. Note that this
4069 destroys the asym.index field. */
4070 if (as_sym != (symbolS *) NULL
4071 && as_sym->ecoff_symbol == sym_ptr)
4073 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4074 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4077 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4079 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4083 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4087 return offset + isym * external_sym_size;
4090 /* Swap out the procedure information. */
4092 static unsigned long
4093 ecoff_build_procs (backend, buf, bufend, offset)
4094 const struct ecoff_debug_swap *backend;
4097 unsigned long offset;
4099 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4100 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4101 = backend->swap_pdr_out;
4104 vlinks_t *file_link;
4106 pdr_out = *buf + offset;
4110 /* The procedures are stored by file. */
4111 for (file_link = file_desc.first;
4112 file_link != (vlinks_t *) NULL;
4113 file_link = file_link->next)
4119 if (file_link->next == (vlinks_t *) NULL)
4120 fil_cnt = file_desc.objects_last_page;
4122 fil_cnt = file_desc.objects_per_page;
4123 fil_ptr = file_link->datum->file;
4124 fil_end = fil_ptr + fil_cnt;
4125 for (; fil_ptr < fil_end; fil_ptr++)
4127 vlinks_t *proc_link;
4130 fil_ptr->fdr.ipdFirst = iproc;
4132 for (proc_link = fil_ptr->procs.first;
4133 proc_link != (vlinks_t *) NULL;
4134 proc_link = proc_link->next)
4140 if (proc_link->next == (vlinks_t *) NULL)
4141 prc_cnt = fil_ptr->procs.objects_last_page;
4143 prc_cnt = fil_ptr->procs.objects_per_page;
4144 proc_ptr = proc_link->datum->proc;
4145 proc_end = proc_ptr + prc_cnt;
4146 for (; proc_ptr < proc_end; proc_ptr++)
4151 adr_sym = proc_ptr->sym->as_sym;
4152 adr = (S_GET_VALUE (adr_sym)
4153 + bfd_get_section_vma (stdoutput,
4154 S_GET_SEGMENT (adr_sym)));
4157 /* This code used to force the adr of the very
4158 first fdr to be 0. However, the native tools
4159 don't do that, and I can't remember why it
4160 used to work that way, so I took it out. */
4161 fil_ptr->fdr.adr = adr;
4164 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4165 if (*bufend - pdr_out < external_pdr_size)
4166 pdr_out = ecoff_add_bytes (buf, bufend,
4169 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4170 pdr_out += external_pdr_size;
4174 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4178 return offset + iproc * external_pdr_size;
4181 /* Swap out the aux information. */
4183 static unsigned long
4184 ecoff_build_aux (backend, buf, bufend, offset)
4185 const struct ecoff_debug_swap *backend;
4188 unsigned long offset;
4191 union aux_ext *aux_out;
4193 vlinks_t *file_link;
4195 bigendian = stdoutput->xvec->header_byteorder_big_p;
4197 aux_out = (union aux_ext *) (*buf + offset);
4201 /* The aux entries are stored by file. */
4202 for (file_link = file_desc.first;
4203 file_link != (vlinks_t *) NULL;
4204 file_link = file_link->next)
4210 if (file_link->next == (vlinks_t *) NULL)
4211 fil_cnt = file_desc.objects_last_page;
4213 fil_cnt = file_desc.objects_per_page;
4214 fil_ptr = file_link->datum->file;
4215 fil_end = fil_ptr + fil_cnt;
4216 for (; fil_ptr < fil_end; fil_ptr++)
4220 fil_ptr->fdr.fBigendian = bigendian;
4221 fil_ptr->fdr.iauxBase = iaux;
4222 for (aux_link = fil_ptr->aux_syms.first;
4223 aux_link != (vlinks_t *) NULL;
4224 aux_link = aux_link->next)
4230 if (aux_link->next == (vlinks_t *) NULL)
4231 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4233 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4234 aux_ptr = aux_link->datum->aux;
4235 aux_end = aux_ptr + aux_cnt;
4236 for (; aux_ptr < aux_end; aux_ptr++)
4238 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4239 aux_out = ((union aux_ext *)
4240 ecoff_add_bytes (buf, bufend,
4242 sizeof (union aux_ext)));
4243 switch (aux_ptr->type)
4246 (*backend->swap_tir_out) (bigendian,
4251 (*backend->swap_rndx_out) (bigendian,
4252 &aux_ptr->data.rndx,
4256 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4260 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4264 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4268 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4272 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4276 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4285 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4289 return ecoff_padding_adjust (backend, buf, bufend,
4290 offset + iaux * sizeof (union aux_ext),
4294 /* Copy out the strings from a varray_t. This returns the number of
4295 bytes copied, rather than the new offset. */
4297 static unsigned long
4298 ecoff_build_strings (buf, bufend, offset, vp)
4301 unsigned long offset;
4308 str_out = *buf + offset;
4312 for (str_link = vp->first;
4313 str_link != (vlinks_t *) NULL;
4314 str_link = str_link->next)
4316 unsigned long str_cnt;
4318 if (str_link->next == (vlinks_t *) NULL)
4319 str_cnt = vp->objects_last_page;
4321 str_cnt = vp->objects_per_page;
4323 if (*bufend - str_out < str_cnt)
4324 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4326 memcpy (str_out, str_link->datum->byte, str_cnt);
4334 /* Dump out the local strings. */
4336 static unsigned long
4337 ecoff_build_ss (backend, buf, bufend, offset)
4338 const struct ecoff_debug_swap *backend;
4341 unsigned long offset;
4344 vlinks_t *file_link;
4348 for (file_link = file_desc.first;
4349 file_link != (vlinks_t *) NULL;
4350 file_link = file_link->next)
4356 if (file_link->next == (vlinks_t *) NULL)
4357 fil_cnt = file_desc.objects_last_page;
4359 fil_cnt = file_desc.objects_per_page;
4360 fil_ptr = file_link->datum->file;
4361 fil_end = fil_ptr + fil_cnt;
4362 for (; fil_ptr < fil_end; fil_ptr++)
4366 fil_ptr->fdr.issBase = iss;
4367 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4369 fil_ptr->fdr.cbSs = ss_cnt;
4374 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4378 /* Swap out the file descriptors. */
4380 static unsigned long
4381 ecoff_build_fdr (backend, buf, bufend, offset)
4382 const struct ecoff_debug_swap *backend;
4385 unsigned long offset;
4387 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4388 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4389 = backend->swap_fdr_out;
4392 vlinks_t *file_link;
4396 fdr_out = *buf + offset;
4398 for (file_link = file_desc.first;
4399 file_link != (vlinks_t *) NULL;
4400 file_link = file_link->next)
4406 if (file_link->next == (vlinks_t *) NULL)
4407 fil_cnt = file_desc.objects_last_page;
4409 fil_cnt = file_desc.objects_per_page;
4410 fil_ptr = file_link->datum->file;
4411 fil_end = fil_ptr + fil_cnt;
4412 for (; fil_ptr < fil_end; fil_ptr++)
4414 if (*bufend - fdr_out < external_fdr_size)
4415 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4417 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4418 fdr_out += external_fdr_size;
4423 return offset + ifile * external_fdr_size;
4426 /* Set up the external symbols. These are supposed to be handled by
4427 the backend. This routine just gets the right information and
4428 calls a backend function to deal with it. */
4433 register symbolS *sym;
4435 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4437 if (sym->ecoff_symbol == NULL)
4440 /* If this is a local symbol, then force the fields to zero. */
4441 if (! S_IS_EXTERNAL (sym)
4442 && S_IS_DEFINED (sym))
4444 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4445 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4446 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4447 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4450 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4454 /* Build the ECOFF dbeugging information. */
4457 ecoff_build_debug (hdr, bufp, backend)
4460 const struct ecoff_debug_swap *backend;
4462 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4467 efdr_t *hold_file_ptr;
4468 proc_t * hold_proc_ptr;
4472 unsigned long offset;
4474 /* Make sure we have a file. */
4475 if (first_file == (efdr_t *) NULL)
4476 add_file ((const char *) NULL, 0);
4478 /* Handle any top level tags. */
4479 for (ptag = top_tag_head->first_tag;
4480 ptag != (tag_t *) NULL;
4483 if (ptag->forward_ref != (forward_t *) NULL)
4484 add_unknown_tag (ptag);
4486 ptag_next = ptag->same_block;
4487 ptag->hash_ptr->tag_ptr = ptag->same_name;
4491 free_thead (top_tag_head);
4493 /* Look through the symbols. Add debugging information for each
4494 symbol that has not already received it. */
4495 hold_file_ptr = cur_file_ptr;
4496 hold_proc_ptr = cur_proc_ptr;
4497 cur_proc_ptr = (proc_t *) NULL;
4498 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4500 if (sym->ecoff_symbol != NULL
4501 || sym->ecoff_file == (efdr_t *) NULL
4502 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4505 cur_file_ptr = sym->ecoff_file;
4506 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4507 S_GET_VALUE (sym), indexNil);
4509 cur_proc_ptr = hold_proc_ptr;
4510 cur_file_ptr = hold_file_ptr;
4512 /* Output an ending symbol for all the files. We have to do this
4513 here for the last file, so we may as well do it for all of the
4516 for (fil_ptr = first_file;
4517 fil_ptr != (efdr_t *) NULL;
4518 fil_ptr = fil_ptr->next_file)
4520 cur_file_ptr = fil_ptr;
4521 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4523 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4526 as_warn ("Missing .end or .bend at end of file");
4530 (void) add_ecoff_symbol ((const char *) NULL,
4537 /* Build the symbolic information. */
4539 buf = xmalloc (PAGE_SIZE);
4540 bufend = buf + PAGE_SIZE;
4542 /* Build the line number information. */
4543 hdr->cbLineOffset = offset;
4544 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4546 hdr->cbLine = offset - hdr->cbLineOffset;
4548 /* We don't use dense numbers at all. */
4550 hdr->cbDnOffset = 0;
4552 /* We can't build the PDR table until we have built the symbols,
4553 because a PDR contains a symbol index. However, we set aside
4554 space at this point. */
4555 hdr->ipdMax = proc_cnt;
4556 hdr->cbPdOffset = offset;
4557 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4558 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4559 proc_cnt * external_pdr_size);
4560 offset += proc_cnt * external_pdr_size;
4562 /* Build the local symbols. */
4563 hdr->cbSymOffset = offset;
4564 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4565 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4567 /* Building the symbols initializes the symbol index in the PDR's.
4568 Now we can swap out the PDR's. */
4569 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4571 /* We don't use optimization symbols. */
4573 hdr->cbOptOffset = 0;
4575 /* Swap out the auxiliary type information. */
4576 hdr->cbAuxOffset = offset;
4577 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4578 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4580 /* Copy out the local strings. */
4581 hdr->cbSsOffset = offset;
4582 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4583 hdr->issMax = offset - hdr->cbSsOffset;
4585 /* We don't use relative file descriptors. */
4587 hdr->cbRfdOffset = 0;
4589 /* Swap out the file descriptors. */
4590 hdr->cbFdOffset = offset;
4591 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4592 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4594 /* Set up the external symbols, which are handled by the BFD back
4597 hdr->cbSsExtOffset = 0;
4599 hdr->cbExtOffset = 0;
4602 know ((offset & (backend->debug_align - 1)) == 0);
4604 /* FIXME: This value should be determined from the .verstamp directive,
4605 with reasonable defaults in config files. */
4607 hdr->vstamp = 0x030b;
4609 hdr->vstamp = 0x020b;
4616 /* Allocate a cluster of pages. */
4618 #ifndef MALLOC_CHECK
4621 allocate_cluster (npages)
4622 unsigned long npages;
4624 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4628 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4631 memset (value, 0, npages * PAGE_USIZE);
4637 static page_t *cluster_ptr = NULL;
4638 static unsigned long pages_left = 0;
4640 #endif /* MALLOC_CHECK */
4642 /* Allocate one page (which is initialized to 0). */
4647 #ifndef MALLOC_CHECK
4649 if (pages_left == 0)
4651 pages_left = MAX_CLUSTER_PAGES;
4652 cluster_ptr = allocate_cluster (pages_left);
4656 return cluster_ptr++;
4658 #else /* MALLOC_CHECK */
4662 ptr = xmalloc (PAGE_USIZE);
4663 memset (ptr, 0, PAGE_USIZE);
4666 #endif /* MALLOC_CHECK */
4669 /* Allocate scoping information. */
4674 register scope_t *ptr;
4675 static scope_t initial_scope;
4677 #ifndef MALLOC_CHECK
4679 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4680 if (ptr != (scope_t *) NULL)
4681 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4684 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4685 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4687 if (unallocated == 0)
4689 unallocated = PAGE_SIZE / sizeof (scope_t);
4690 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4691 alloc_counts[(int)alloc_type_scope].total_pages++;
4694 ptr = &cur_page->scope[--unallocated];
4695 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4700 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4704 alloc_counts[(int)alloc_type_scope].total_alloc++;
4705 *ptr = initial_scope;
4709 /* Free scoping information. */
4715 alloc_counts[(int)alloc_type_scope].total_free++;
4717 #ifndef MALLOC_CHECK
4718 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4719 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4725 /* Allocate links for pages in a virtual array. */
4730 register vlinks_t *ptr;
4731 static vlinks_t initial_vlinks;
4733 #ifndef MALLOC_CHECK
4735 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4736 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4738 if (unallocated == 0)
4740 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4741 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4742 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4745 ptr = &cur_page->vlinks[--unallocated];
4746 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4750 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4754 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4755 *ptr = initial_vlinks;
4759 /* Allocate string hash buckets. */
4764 register shash_t *ptr;
4765 static shash_t initial_shash;
4767 #ifndef MALLOC_CHECK
4769 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4770 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4772 if (unallocated == 0)
4774 unallocated = PAGE_SIZE / sizeof (shash_t);
4775 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4776 alloc_counts[(int)alloc_type_shash].total_pages++;
4779 ptr = &cur_page->shash[--unallocated];
4780 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4784 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4788 alloc_counts[(int)alloc_type_shash].total_alloc++;
4789 *ptr = initial_shash;
4793 /* Allocate type hash buckets. */
4798 register thash_t *ptr;
4799 static thash_t initial_thash;
4801 #ifndef MALLOC_CHECK
4803 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4804 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4806 if (unallocated == 0)
4808 unallocated = PAGE_SIZE / sizeof (thash_t);
4809 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4810 alloc_counts[(int)alloc_type_thash].total_pages++;
4813 ptr = &cur_page->thash[--unallocated];
4814 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4818 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4822 alloc_counts[(int)alloc_type_thash].total_alloc++;
4823 *ptr = initial_thash;
4827 /* Allocate structure, union, or enum tag information. */
4832 register tag_t *ptr;
4833 static tag_t initial_tag;
4835 #ifndef MALLOC_CHECK
4837 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4838 if (ptr != (tag_t *) NULL)
4839 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4842 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4843 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4845 if (unallocated == 0)
4847 unallocated = PAGE_SIZE / sizeof (tag_t);
4848 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4849 alloc_counts[(int)alloc_type_tag].total_pages++;
4852 ptr = &cur_page->tag[--unallocated];
4853 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4858 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4862 alloc_counts[(int)alloc_type_tag].total_alloc++;
4867 /* Free scoping information. */
4873 alloc_counts[(int)alloc_type_tag].total_free++;
4875 #ifndef MALLOC_CHECK
4876 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4877 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4883 /* Allocate forward reference to a yet unknown tag. */
4888 register forward_t *ptr;
4889 static forward_t initial_forward;
4891 #ifndef MALLOC_CHECK
4893 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4894 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4896 if (unallocated == 0)
4898 unallocated = PAGE_SIZE / sizeof (forward_t);
4899 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4900 alloc_counts[(int)alloc_type_forward].total_pages++;
4903 ptr = &cur_page->forward[--unallocated];
4904 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4908 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4912 alloc_counts[(int)alloc_type_forward].total_alloc++;
4913 *ptr = initial_forward;
4917 /* Allocate head of type hash list. */
4922 register thead_t *ptr;
4923 static thead_t initial_thead;
4925 #ifndef MALLOC_CHECK
4927 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4928 if (ptr != (thead_t *) NULL)
4929 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4932 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4933 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4935 if (unallocated == 0)
4937 unallocated = PAGE_SIZE / sizeof (thead_t);
4938 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4939 alloc_counts[(int)alloc_type_thead].total_pages++;
4942 ptr = &cur_page->thead[--unallocated];
4943 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4948 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4952 alloc_counts[(int)alloc_type_thead].total_alloc++;
4953 *ptr = initial_thead;
4957 /* Free scoping information. */
4963 alloc_counts[(int)alloc_type_thead].total_free++;
4965 #ifndef MALLOC_CHECK
4966 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4967 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4973 static lineno_list_t *
4974 allocate_lineno_list ()
4976 register lineno_list_t *ptr;
4977 static lineno_list_t initial_lineno_list;
4979 #ifndef MALLOC_CHECK
4981 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4982 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4984 if (unallocated == 0)
4986 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4987 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4988 alloc_counts[(int)alloc_type_lineno].total_pages++;
4991 ptr = &cur_page->lineno[--unallocated];
4992 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
4996 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5000 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5001 *ptr = initial_lineno_list;
5006 ecoff_set_gp_prolog_size (sz)
5009 if (cur_proc_ptr == 0)
5012 cur_proc_ptr->pdr.gp_prologue = sz;
5013 if (cur_proc_ptr->pdr.gp_prologue != sz)
5015 as_warn ("GP prologue size exceeds field size, using 0 instead");
5016 cur_proc_ptr->pdr.gp_prologue = 0;
5019 cur_proc_ptr->pdr.gp_used = 1;
5023 generate_ecoff_stab (what, string, type, other, desc)
5030 efdr_t *save_file_ptr = cur_file_ptr;
5036 localsym_t *hold = NULL;
5038 /* We don't handle .stabd. */
5039 if (what != 's' && what != 'n')
5041 as_bad (".stab%c is not supported", what);
5045 /* We ignore the other field. */
5047 as_warn (".stab%c: ignoring non-zero other field", what);
5049 /* Make sure we have a current file. */
5050 if (cur_file_ptr == (efdr_t *) NULL)
5052 add_file ((const char *) NULL, 0);
5053 save_file_ptr = cur_file_ptr;
5056 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5058 if (stabs_seen == 0)
5061 /* Line number stabs are handled differently, since they have two
5062 values, the line number and the address of the label. We use the
5063 index field (aka desc) to hold the line number, and the value
5064 field to hold the address. The symbol type is st_Label, which
5065 should be different from the other stabs, so that gdb can
5067 if (type == N_SLINE)
5073 listing_source_line ((unsigned int) desc);
5076 dummy_symr.index = desc;
5077 if (dummy_symr.index != desc)
5079 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5084 sym = symbol_find_or_make ((char *)string);
5093 if (listing && (type == N_SO || type == N_SOL))
5094 listing_source_file (string);
5097 sym = symbol_find_or_make ((char *)string);
5101 indx = ECOFF_MARK_STAB (type);
5104 /* Don't store the stabs symbol we are creating as the type of the
5105 ECOFF symbol. We want to compute the type of the ECOFF symbol
5107 if (sym != (symbolS *) NULL)
5108 hold = sym->ecoff_symbol;
5110 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
5112 if (sym != (symbolS *) NULL)
5113 sym->ecoff_symbol = hold;
5115 /* Restore normal file type. */
5116 cur_file_ptr = save_file_ptr;
5119 static int line_label_cnt = 0;
5121 ecoff_generate_asm_line_stab (filename, lineno)
5127 if (strcmp (current_stabs_filename, filename))
5129 add_file (filename, 0);
5130 generate_asm_line_stab = 1;
5134 /* generate local label $LMnn */
5136 sprintf(ll, "$LM%d", line_label_cnt);
5139 /* generate stab for the line */
5140 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5144 #endif /* ECOFF_DEBUGGING */