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 /* Make sure that we have a file pointer, but only if we have seen a
1503 file. If we haven't seen a file, then this is a probably special
1504 symbol created by md_begin which may required special handling at
1505 some point. Creating a dummy file with a dummy name is certainly
1507 if (cur_file_ptr == (efdr_t *) NULL
1508 && seen_at_least_1_file ())
1509 add_file ((const char *) NULL, 0);
1510 symbolP->ecoff_file = cur_file_ptr;
1511 symbolP->ecoff_symbol = NULL;
1512 symbolP->ecoff_extern_size = 0;
1515 /* Add a page to a varray object. */
1518 add_varray_page (vp)
1519 varray_t *vp; /* varray to add page to */
1521 vlinks_t *new_links = allocate_vlinks ();
1524 if (vp->object_size > 1)
1525 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1528 new_links->datum = allocate_page ();
1530 alloc_counts[(int)alloc_type_varray].total_alloc++;
1531 alloc_counts[(int)alloc_type_varray].total_pages++;
1533 new_links->start_index = vp->num_allocated;
1534 vp->objects_last_page = 0;
1536 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1537 vp->first = vp->last = new_links;
1539 { /* 2nd or greater allocation */
1540 new_links->prev = vp->last;
1541 vp->last->next = new_links;
1542 vp->last = new_links;
1546 /* Add a string (and null pad) to one of the string tables. */
1549 add_string (vp, hash_tbl, str, ret_hash)
1550 varray_t *vp; /* string obstack */
1551 struct hash_control *hash_tbl; /* ptr to hash table */
1552 const char *str; /* string */
1553 shash_t **ret_hash; /* return hash pointer */
1555 register unsigned long len = strlen (str);
1556 register shash_t *hash_ptr;
1558 if (len >= PAGE_USIZE)
1559 as_fatal ("String too big (%lu bytes)", len);
1561 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1562 if (hash_ptr == (shash_t *) NULL)
1564 register const char *err;
1566 if (vp->objects_last_page + len >= PAGE_USIZE)
1569 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1570 add_varray_page (vp);
1573 hash_ptr = allocate_shash ();
1574 hash_ptr->indx = vp->num_allocated;
1576 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1578 vp->objects_last_page += len + 1;
1579 vp->num_allocated += len + 1;
1581 strcpy (hash_ptr->string, str);
1583 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1585 as_fatal ("Inserting \"%s\" into string hash table: %s",
1589 if (ret_hash != (shash_t **) NULL)
1590 *ret_hash = hash_ptr;
1592 return hash_ptr->indx;
1595 /* Add debugging information for a symbol. */
1598 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1599 const char *str; /* symbol name */
1600 st_t type; /* symbol type */
1601 sc_t storage; /* storage class */
1602 symbolS *sym_value; /* associated symbol. */
1603 symint_t value; /* value of symbol */
1604 symint_t indx; /* index to local/aux. syms */
1607 register scope_t *pscope;
1608 register thead_t *ptag_head;
1609 register tag_t *ptag;
1610 register tag_t *ptag_next;
1611 register varray_t *vp;
1612 register int scope_delta = 0;
1613 shash_t *hash_ptr = (shash_t *) NULL;
1615 if (cur_file_ptr == (efdr_t *) NULL)
1616 as_fatal ("no current file pointer");
1618 vp = &cur_file_ptr->symbols;
1620 if (vp->objects_last_page == vp->objects_per_page)
1621 add_varray_page (vp);
1623 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1625 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1626 psym->name = S_GET_NAME (sym_value);
1629 psym->as_sym = sym_value;
1630 if (sym_value != (symbolS *) NULL)
1631 sym_value->ecoff_symbol = psym;
1632 psym->file_ptr = cur_file_ptr;
1633 psym->proc_ptr = cur_proc_ptr;
1634 psym->begin_ptr = (localsym_t *) NULL;
1635 psym->index_ptr = (aux_t *) NULL;
1636 psym->forward_ref = (forward_t *) NULL;
1637 psym->sym_index = -1;
1638 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1639 psym->ecoff_sym.asym.value = value;
1640 psym->ecoff_sym.asym.st = (unsigned) type;
1641 psym->ecoff_sym.asym.sc = (unsigned) storage;
1642 psym->ecoff_sym.asym.index = indx;
1644 /* If there is an associated symbol, we wait until the end of the
1645 assembly before deciding where to put the name (it may be just an
1646 external symbol). Otherwise, this is just a debugging symbol and
1647 the name should go with the current file. */
1648 if (sym_value == (symbolS *) NULL)
1649 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1651 : add_string (&cur_file_ptr->strings,
1652 cur_file_ptr->str_hash,
1656 ++vp->num_allocated;
1658 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1661 /* Save the symbol within the hash table if this is a static
1662 item, and it has a name. */
1663 if (hash_ptr != (shash_t *) NULL
1664 && (type == st_Global || type == st_Static || type == st_Label
1665 || type == st_Proc || type == st_StaticProc))
1666 hash_ptr->sym_ptr = psym;
1668 /* push or pop a scope if appropriate. */
1674 case st_File: /* beginning of file */
1675 case st_Proc: /* procedure */
1676 case st_StaticProc: /* static procedure */
1677 case st_Block: /* begin scope */
1678 pscope = allocate_scope ();
1679 pscope->prev = cur_file_ptr->cur_scope;
1680 pscope->lsym = psym;
1681 pscope->type = type;
1682 cur_file_ptr->cur_scope = pscope;
1684 if (type != st_File)
1687 /* For every block type except file, struct, union, or
1688 enumeration blocks, push a level on the tag stack. We omit
1689 file types, so that tags can span file boundaries. */
1690 if (type != st_File && storage != sc_Info)
1692 ptag_head = allocate_thead ();
1693 ptag_head->first_tag = 0;
1694 ptag_head->prev = cur_tag_head;
1695 cur_tag_head = ptag_head;
1700 pscope = cur_file_ptr->cur_scope;
1701 if (pscope == (scope_t *) NULL)
1702 as_fatal ("too many st_End's");
1705 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1707 psym->begin_ptr = pscope->lsym;
1709 if (begin_type != st_File)
1712 /* Except for file, structure, union, or enumeration end
1713 blocks remove all tags created within this scope. */
1714 if (begin_type != st_File && storage != sc_Info)
1716 ptag_head = cur_tag_head;
1717 cur_tag_head = ptag_head->prev;
1719 for (ptag = ptag_head->first_tag;
1720 ptag != (tag_t *) NULL;
1723 if (ptag->forward_ref != (forward_t *) NULL)
1724 add_unknown_tag (ptag);
1726 ptag_next = ptag->same_block;
1727 ptag->hash_ptr->tag_ptr = ptag->same_name;
1731 free_thead (ptag_head);
1734 cur_file_ptr->cur_scope = pscope->prev;
1736 /* block begin gets next sym #. This is set when we know
1737 the symbol index value. */
1739 /* Functions push two or more aux words as follows:
1740 1st word: index+1 of the end symbol (filled in later).
1741 2nd word: type of the function (plus any aux words needed).
1742 Also, tie the external pointer back to the function begin symbol. */
1743 if (begin_type != st_File && begin_type != st_Block)
1746 varray_t *svp = &cur_file_ptr->aux_syms;
1748 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1749 pscope->lsym->index_ptr =
1750 &svp->last->datum->aux[svp->objects_last_page - 1];
1751 ty = add_aux_sym_tir (&last_func_type_info,
1753 &cur_file_ptr->thash_head[0]);
1755 /* This seems to be unnecessary. I'm not even sure what it is
1756 * intended to do. It's from mips-tfile.
1757 * if (last_func_sym_value != (symbolS *) NULL)
1759 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1760 * last_func_sym_value->index = ty;
1765 free_scope (pscope);
1769 cur_file_ptr->nested_scopes += scope_delta;
1772 if (debug && type != st_File
1773 && (debug > 2 || type == st_Block || type == st_End
1774 || type == st_Proc || type == st_StaticProc))
1776 char *sc_str = sc_to_string (storage);
1777 char *st_str = st_to_string (type);
1778 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1781 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1782 value, depth, sc_str);
1784 if (str_start && str_end_p1 - str_start > 0)
1785 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1788 unsigned long len = strlen (st_str);
1789 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1797 /* Add an auxiliary symbol (passing a symint). This is actually used
1798 for integral aux types, not just symints. */
1801 add_aux_sym_symint (aux_word)
1802 symint_t aux_word; /* auxiliary information word */
1804 register varray_t *vp;
1805 register aux_t *aux_ptr;
1807 if (cur_file_ptr == (efdr_t *) NULL)
1808 as_fatal ("no current file pointer");
1810 vp = &cur_file_ptr->aux_syms;
1812 if (vp->objects_last_page == vp->objects_per_page)
1813 add_varray_page (vp);
1815 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1816 aux_ptr->type = aux_isym;
1817 aux_ptr->data.isym = aux_word;
1819 return vp->num_allocated++;
1823 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1826 add_aux_sym_rndx (file_index, sym_index)
1830 register varray_t *vp;
1831 register aux_t *aux_ptr;
1833 if (cur_file_ptr == (efdr_t *) NULL)
1834 as_fatal ("no current file pointer");
1836 vp = &cur_file_ptr->aux_syms;
1838 if (vp->objects_last_page == vp->objects_per_page)
1839 add_varray_page (vp);
1841 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1842 aux_ptr->type = aux_rndx;
1843 aux_ptr->data.rndx.rfd = file_index;
1844 aux_ptr->data.rndx.index = sym_index;
1846 return vp->num_allocated++;
1849 /* Add an auxiliary symbol (passing the basic type and possibly
1850 type qualifiers). */
1853 add_aux_sym_tir (t, state, hash_tbl)
1854 type_info_t *t; /* current type information */
1855 hash_state_t state; /* whether to hash type or not */
1856 thash_t **hash_tbl; /* pointer to hash table to use */
1858 register varray_t *vp;
1859 register aux_t *aux_ptr;
1860 static AUXU init_aux;
1865 if (cur_file_ptr == (efdr_t *) NULL)
1866 as_fatal ("no current file pointer");
1868 vp = &cur_file_ptr->aux_syms;
1871 aux.ti.bt = (int) t->basic_type;
1872 aux.ti.continued = 0;
1873 aux.ti.fBitfield = t->bitfield;
1875 aux.ti.tq0 = (int) t->type_qualifiers[0];
1876 aux.ti.tq1 = (int) t->type_qualifiers[1];
1877 aux.ti.tq2 = (int) t->type_qualifiers[2];
1878 aux.ti.tq3 = (int) t->type_qualifiers[3];
1879 aux.ti.tq4 = (int) t->type_qualifiers[4];
1880 aux.ti.tq5 = (int) t->type_qualifiers[5];
1883 /* For anything that adds additional information, we must not hash,
1884 so check here, and reset our state. */
1886 if (state != hash_no
1887 && (t->type_qualifiers[0] == tq_Array
1888 || t->type_qualifiers[1] == tq_Array
1889 || t->type_qualifiers[2] == tq_Array
1890 || t->type_qualifiers[3] == tq_Array
1891 || t->type_qualifiers[4] == tq_Array
1892 || t->type_qualifiers[5] == tq_Array
1893 || t->basic_type == bt_Struct
1894 || t->basic_type == bt_Union
1895 || t->basic_type == bt_Enum
1897 || t->num_dims > 0))
1900 /* See if we can hash this type, and save some space, but some types
1901 can't be hashed (because they contain arrays or continuations),
1902 and others can be put into the hash list, but cannot use existing
1903 types because other aux entries precede this one. */
1905 if (state != hash_no)
1907 register thash_t *hash_ptr;
1908 register symint_t hi;
1910 hi = aux.isym & ((1 << HASHBITS) - 1);
1913 for (hash_ptr = hash_tbl[hi];
1914 hash_ptr != (thash_t *)0;
1915 hash_ptr = hash_ptr->next)
1917 if (aux.isym == hash_ptr->type.isym)
1921 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1922 return hash_ptr->indx;
1924 if (hash_ptr == (thash_t *) NULL)
1926 hash_ptr = allocate_thash ();
1927 hash_ptr->next = hash_tbl[hi];
1928 hash_ptr->type = aux;
1929 hash_ptr->indx = vp->num_allocated;
1930 hash_tbl[hi] = hash_ptr;
1934 /* Everything is set up, add the aux symbol. */
1935 if (vp->objects_last_page == vp->objects_per_page)
1936 add_varray_page (vp);
1938 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1939 aux_ptr->type = aux_tir;
1940 aux_ptr->data = aux;
1942 ret = vp->num_allocated++;
1944 /* Add bitfield length if it exists.
1946 NOTE: Mips documentation claims bitfield goes at the end of the
1947 AUX record, but the DECstation compiler emits it here.
1948 (This would only make a difference for enum bitfields.)
1950 Also note: We use the last size given since gcc may emit 2
1951 for an enum bitfield. */
1954 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1957 /* Add tag information if needed. Structure, union, and enum
1958 references add 2 aux symbols: a [file index, symbol index]
1959 pointer to the structure type, and the current file index. */
1961 if (t->basic_type == bt_Struct
1962 || t->basic_type == bt_Union
1963 || t->basic_type == bt_Enum)
1965 register symint_t file_index = t->tag_ptr->ifd;
1966 register localsym_t *sym = t->tag_ptr->sym;
1967 register forward_t *forward_ref = allocate_forward ();
1969 if (sym != (localsym_t *) NULL)
1971 forward_ref->next = sym->forward_ref;
1972 sym->forward_ref = forward_ref;
1976 forward_ref->next = t->tag_ptr->forward_ref;
1977 t->tag_ptr->forward_ref = forward_ref;
1980 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1981 forward_ref->index_ptr
1982 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1984 (void) add_aux_sym_symint (file_index);
1985 forward_ref->ifd_ptr
1986 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1989 /* Add information about array bounds if they exist. */
1990 for (i = 0; i < t->num_dims; i++)
1992 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1993 cur_file_ptr->int_type);
1995 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1996 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1997 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1998 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2000 : (t->sizes[i] * 8) / t->dimensions[i]);
2003 /* NOTE: Mips documentation claims that the bitfield width goes here.
2004 But it needs to be emitted earlier. */
2009 /* Add a tag to the tag table (unless it already exists). */
2012 get_tag (tag, sym, basic_type)
2013 const char *tag; /* tag name */
2014 localsym_t *sym; /* tag start block */
2015 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2021 if (cur_file_ptr == (efdr_t *) NULL)
2022 as_fatal ("no current file pointer");
2024 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2026 if (hash_ptr != (shash_t *) NULL
2027 && hash_ptr->tag_ptr != (tag_t *) NULL)
2029 tag_ptr = hash_ptr->tag_ptr;
2030 if (sym != (localsym_t *) NULL)
2032 tag_ptr->basic_type = basic_type;
2033 tag_ptr->ifd = cur_file_ptr->file_index;
2039 if (hash_ptr == (shash_t *) NULL)
2043 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2045 hash_ptr = allocate_shash ();
2046 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2048 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2050 hash_ptr->string = perm;
2053 tag_ptr = allocate_tag ();
2054 tag_ptr->forward_ref = (forward_t *) NULL;
2055 tag_ptr->hash_ptr = hash_ptr;
2056 tag_ptr->same_name = hash_ptr->tag_ptr;
2057 tag_ptr->basic_type = basic_type;
2059 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2061 : cur_file_ptr->file_index);
2062 tag_ptr->same_block = cur_tag_head->first_tag;
2064 cur_tag_head->first_tag = tag_ptr;
2065 hash_ptr->tag_ptr = tag_ptr;
2070 /* Add an unknown {struct, union, enum} tag. */
2073 add_unknown_tag (ptag)
2074 tag_t *ptag; /* pointer to tag information */
2076 shash_t *hash_ptr = ptag->hash_ptr;
2077 char *name = hash_ptr->string;
2084 char *agg_type = "{unknown aggregate type}";
2085 switch (ptag->basic_type)
2087 case bt_Struct: agg_type = "struct"; break;
2088 case bt_Union: agg_type = "union"; break;
2089 case bt_Enum: agg_type = "enum"; break;
2093 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2094 hash_ptr->len, name_start);
2098 sym = add_ecoff_symbol (name,
2105 (void) add_ecoff_symbol (name,
2112 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2114 *pf = ptag->forward_ref;
2117 /* Add a procedure to the current file's list of procedures, and record
2118 this is the current procedure. */
2121 add_procedure (func)
2122 char *func; /* func name */
2124 register varray_t *vp;
2125 register proc_t *new_proc_ptr;
2129 fputc ('\n', stderr);
2132 if (cur_file_ptr == (efdr_t *) NULL)
2133 as_fatal ("no current file pointer");
2135 vp = &cur_file_ptr->procs;
2137 if (vp->objects_last_page == vp->objects_per_page)
2138 add_varray_page (vp);
2140 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2142 if (first_proc_ptr == (proc_t *) NULL)
2143 first_proc_ptr = new_proc_ptr;
2145 vp->num_allocated++;
2147 new_proc_ptr->pdr.isym = -1;
2148 new_proc_ptr->pdr.iline = -1;
2149 new_proc_ptr->pdr.lnLow = -1;
2150 new_proc_ptr->pdr.lnHigh = -1;
2152 /* Push the start of the function. */
2153 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2154 symbol_find_or_make (func),
2155 (symint_t) 0, (symint_t) 0);
2159 /* Fill in the linenos preceding the .ent, if any. */
2160 if (noproc_lineno != (lineno_list_t *) NULL)
2164 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2165 l->proc = new_proc_ptr;
2166 *last_lineno_ptr = noproc_lineno;
2167 while (*last_lineno_ptr != NULL)
2168 last_lineno_ptr = &(*last_lineno_ptr)->next;
2169 noproc_lineno = (lineno_list_t *) NULL;
2173 /* Add a new filename, and set up all of the file relative
2174 virtual arrays (strings, symbols, aux syms, etc.). Record
2175 where the current file structure lives. */
2178 add_file (file_name, indx)
2179 const char *file_name; /* file name */
2182 register int first_ch;
2183 register efdr_t *fil_ptr;
2187 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2190 /* If the file name is NULL, then no .file symbol appeared, and we
2191 want to use the actual file name. */
2192 if (file_name == (const char *) NULL)
2196 if (first_file != (efdr_t *) NULL)
2197 as_fatal ("fake .file after real one");
2198 as_where (&file, (unsigned int *) NULL);
2199 file_name = (const char *) file;
2200 if (! symbol_table_frozen)
2201 generate_asm_line_stab = 1;
2204 generate_asm_line_stab = 0;
2208 listing_source_file (file_name);
2211 current_stabs_filename = file_name;
2213 /* If we're creating stabs, then we don't actually make a new FDR.
2214 Instead, we just create a stabs symbol. */
2217 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2218 symbol_new ("L0\001", now_seg,
2219 (valueT) frag_now_fix (),
2221 0, ECOFF_MARK_STAB (N_SOL));
2225 first_ch = *file_name;
2227 /* See if the file has already been created. */
2228 for (fil_ptr = first_file;
2229 fil_ptr != (efdr_t *) NULL;
2230 fil_ptr = fil_ptr->next_file)
2232 if (first_ch == fil_ptr->name[0]
2233 && strcmp (file_name, fil_ptr->name) == 0)
2235 cur_file_ptr = fil_ptr;
2240 /* If this is a new file, create it. */
2241 if (fil_ptr == (efdr_t *) NULL)
2243 if (file_desc.objects_last_page == file_desc.objects_per_page)
2244 add_varray_page (&file_desc);
2246 fil_ptr = cur_file_ptr =
2247 &file_desc.last->datum->file[file_desc.objects_last_page++];
2248 *fil_ptr = init_file;
2250 fil_ptr->file_index = current_file_idx++;
2251 ++file_desc.num_allocated;
2253 /* Allocate the string hash table. */
2254 fil_ptr->str_hash = hash_new ();
2256 /* Make sure 0 byte in string table is null */
2257 add_string (&fil_ptr->strings,
2262 if (strlen (file_name) > PAGE_USIZE - 2)
2263 as_fatal ("Filename goes over one page boundary.");
2265 /* Push the start of the filename. We assume that the filename
2266 will be stored at string offset 1. */
2267 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2269 (symint_t) 0, (symint_t) 0);
2270 fil_ptr->fdr.rss = 1;
2271 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2273 /* Update the linked list of file descriptors. */
2274 *last_file_ptr = fil_ptr;
2275 last_file_ptr = &fil_ptr->next_file;
2277 /* Add void & int types to the file (void should be first to catch
2278 errant 0's within the index fields). */
2279 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2281 &cur_file_ptr->thash_head[0]);
2283 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2285 &cur_file_ptr->thash_head[0]);
2286 if (generate_asm_line_stab)
2289 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2290 symbol_new ("L0\001", now_seg,
2291 (valueT) frag_now_fix (),
2293 0, ECOFF_MARK_STAB (N_SO));
2294 (void) add_ecoff_symbol ("void:t1=1", st_Nil, sc_Nil,
2295 (symbolS *) NULL, 0,
2296 ECOFF_MARK_STAB (N_LSYM));
2303 /* Convert storage class to string. */
2306 sc_to_string(storage_class)
2309 switch(storage_class)
2311 case sc_Nil: return "Nil,";
2312 case sc_Text: return "Text,";
2313 case sc_Data: return "Data,";
2314 case sc_Bss: return "Bss,";
2315 case sc_Register: return "Register,";
2316 case sc_Abs: return "Abs,";
2317 case sc_Undefined: return "Undefined,";
2318 case sc_CdbLocal: return "CdbLocal,";
2319 case sc_Bits: return "Bits,";
2320 case sc_CdbSystem: return "CdbSystem,";
2321 case sc_RegImage: return "RegImage,";
2322 case sc_Info: return "Info,";
2323 case sc_UserStruct: return "UserStruct,";
2324 case sc_SData: return "SData,";
2325 case sc_SBss: return "SBss,";
2326 case sc_RData: return "RData,";
2327 case sc_Var: return "Var,";
2328 case sc_Common: return "Common,";
2329 case sc_SCommon: return "SCommon,";
2330 case sc_VarRegister: return "VarRegister,";
2331 case sc_Variant: return "Variant,";
2332 case sc_SUndefined: return "SUndefined,";
2333 case sc_Init: return "Init,";
2334 case sc_Max: return "Max,";
2344 /* Convert symbol type to string. */
2347 st_to_string(symbol_type)
2352 case st_Nil: return "Nil,";
2353 case st_Global: return "Global,";
2354 case st_Static: return "Static,";
2355 case st_Param: return "Param,";
2356 case st_Local: return "Local,";
2357 case st_Label: return "Label,";
2358 case st_Proc: return "Proc,";
2359 case st_Block: return "Block,";
2360 case st_End: return "End,";
2361 case st_Member: return "Member,";
2362 case st_Typedef: return "Typedef,";
2363 case st_File: return "File,";
2364 case st_RegReloc: return "RegReloc,";
2365 case st_Forward: return "Forward,";
2366 case st_StaticProc: return "StaticProc,";
2367 case st_Constant: return "Constant,";
2368 case st_Str: return "String,";
2369 case st_Number: return "Number,";
2370 case st_Expr: return "Expr,";
2371 case st_Type: return "Type,";
2372 case st_Max: return "Max,";
2380 /* Parse .begin directives which have a label as the first argument
2381 which gives the location of the start of the block. */
2384 ecoff_directive_begin (ignore)
2390 if (cur_file_ptr == (efdr_t *) NULL)
2392 as_warn (".begin directive without a preceding .file directive");
2393 demand_empty_rest_of_line ();
2397 if (cur_proc_ptr == (proc_t *) NULL)
2399 as_warn (".begin directive without a preceding .ent directive");
2400 demand_empty_rest_of_line ();
2404 name = input_line_pointer;
2405 name_end = get_symbol_end ();
2407 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2408 symbol_find_or_make (name),
2409 (symint_t) 0, (symint_t) 0);
2411 *input_line_pointer = name_end;
2413 /* The line number follows, but we don't use it. */
2414 (void) get_absolute_expression ();
2415 demand_empty_rest_of_line ();
2418 /* Parse .bend directives which have a label as the first argument
2419 which gives the location of the end of the block. */
2422 ecoff_directive_bend (ignore)
2429 if (cur_file_ptr == (efdr_t *) NULL)
2431 as_warn (".bend directive without a preceding .file directive");
2432 demand_empty_rest_of_line ();
2436 if (cur_proc_ptr == (proc_t *) NULL)
2438 as_warn (".bend directive without a preceding .ent directive");
2439 demand_empty_rest_of_line ();
2443 name = input_line_pointer;
2444 name_end = get_symbol_end ();
2446 /* The value is the distance between the .bend directive and the
2447 corresponding symbol. We fill in the offset when we write out
2449 endsym = symbol_find (name);
2450 if (endsym == (symbolS *) NULL)
2451 as_warn (".bend directive names unknown symbol");
2453 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2454 (symint_t) 0, (symint_t) 0);
2456 *input_line_pointer = name_end;
2458 /* The line number follows, but we don't use it. */
2459 (void) get_absolute_expression ();
2460 demand_empty_rest_of_line ();
2463 /* COFF debugging information is provided as a series of directives
2464 (.def, .scl, etc.). We build up information as we read the
2465 directives in the following static variables, and file it away when
2466 we reach the .endef directive. */
2467 static char *coff_sym_name;
2468 static type_info_t coff_type;
2469 static sc_t coff_storage_class;
2470 static st_t coff_symbol_typ;
2471 static int coff_is_function;
2472 static char *coff_tag;
2473 static valueT coff_value;
2474 symbolS *coff_sym_value;
2475 static int coff_inside_enumeration;
2477 /* Handle a .def directive: start defining a symbol. */
2480 ecoff_directive_def (ignore)
2488 name = input_line_pointer;
2489 name_end = get_symbol_end ();
2491 if (coff_sym_name != (char *) NULL)
2492 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2493 else if (*name == '\0')
2494 as_warn ("Empty symbol name in .def; ignored");
2497 if (coff_sym_name != (char *) NULL)
2498 free (coff_sym_name);
2499 if (coff_tag != (char *) NULL)
2501 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2502 strcpy (coff_sym_name, name);
2503 coff_type = type_info_init;
2504 coff_storage_class = sc_Nil;
2505 coff_symbol_typ = st_Nil;
2506 coff_is_function = 0;
2507 coff_tag = (char *) NULL;
2509 coff_sym_value = (symbolS *) NULL;
2512 *input_line_pointer = name_end;
2514 demand_empty_rest_of_line ();
2517 /* Handle a .dim directive, used to give dimensions for an array. The
2518 arguments are comma separated numbers. mips-tfile assumes that
2519 there will not be more than 6 dimensions, and gdb won't read any
2520 more than that anyhow, so I will also make that assumption. */
2523 ecoff_directive_dim (ignore)
2529 if (coff_sym_name == (char *) NULL)
2531 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2532 demand_empty_rest_of_line ();
2536 for (i = 0; i < N_TQ; i++)
2539 dimens[i] = get_absolute_expression ();
2540 if (*input_line_pointer == ',')
2541 ++input_line_pointer;
2544 if (*input_line_pointer != '\n'
2545 && *input_line_pointer != ';')
2546 as_warn ("Badly formed .dim directive");
2554 /* The dimensions are stored away in reverse order. */
2557 if (coff_type.num_dims >= N_TQ)
2559 as_warn ("Too many .dim entries");
2562 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2563 ++coff_type.num_dims;
2566 demand_empty_rest_of_line ();
2569 /* Handle a .scl directive, which sets the COFF storage class of the
2573 ecoff_directive_scl (ignore)
2578 if (coff_sym_name == (char *) NULL)
2580 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2581 demand_empty_rest_of_line ();
2585 val = get_absolute_expression ();
2587 coff_symbol_typ = map_coff_sym_type[val];
2588 coff_storage_class = map_coff_storage[val];
2590 demand_empty_rest_of_line ();
2593 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2594 .size can have multiple arguments. We humor it, although gcc will
2595 never generate more than one argument. */
2598 ecoff_directive_size (ignore)
2604 if (coff_sym_name == (char *) NULL)
2606 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2607 demand_empty_rest_of_line ();
2611 for (i = 0; i < N_TQ; i++)
2614 sizes[i] = get_absolute_expression ();
2615 if (*input_line_pointer == ',')
2616 ++input_line_pointer;
2619 if (*input_line_pointer != '\n'
2620 && *input_line_pointer != ';')
2621 as_warn ("Badly formed .size directive");
2629 /* The sizes are stored away in reverse order. */
2632 if (coff_type.num_sizes >= N_TQ)
2634 as_warn ("Too many .size entries");
2637 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2638 ++coff_type.num_sizes;
2641 demand_empty_rest_of_line ();
2644 /* Handle the .type directive, which gives the COFF type of the
2648 ecoff_directive_type (ignore)
2655 if (coff_sym_name == (char *) NULL)
2657 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2658 demand_empty_rest_of_line ();
2662 val = get_absolute_expression ();
2664 coff_type.orig_type = BTYPE (val);
2665 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2667 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2668 while (val &~ N_BTMASK)
2670 if (tq_ptr == &coff_type.type_qualifiers[0])
2672 as_warn ("Too derived values in .type argument");
2677 else if (ISFCN (val))
2678 *--tq_ptr = tq_Proc;
2679 else if (ISARY (val))
2680 *--tq_ptr = tq_Array;
2682 as_fatal ("Unrecognized .type argument");
2687 tq_shft = &coff_type.type_qualifiers[0];
2688 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2689 *tq_shft++ = *tq_ptr++;
2691 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2693 /* If this is a function, ignore it, so that we don't get two
2694 entries (one from the .ent, and one for the .def that
2695 precedes it). Save the type information so that the end
2696 block can properly add it after the begin block index. For
2697 MIPS knows what reason, we must strip off the function type
2699 coff_is_function = 1;
2700 tq_shft[-1] = tq_Nil;
2703 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2704 *tq_shft++ = tq_Nil;
2706 demand_empty_rest_of_line ();
2709 /* Handle the .tag directive, which gives the name of a structure,
2713 ecoff_directive_tag (ignore)
2719 if (coff_sym_name == (char *) NULL)
2721 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2722 demand_empty_rest_of_line ();
2726 name = input_line_pointer;
2727 name_end = get_symbol_end ();
2729 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2730 strcpy (coff_tag, name);
2732 *input_line_pointer = name_end;
2734 demand_empty_rest_of_line ();
2737 /* Handle the .val directive, which gives the value of the symbol. It
2738 may be the name of a static or global symbol. */
2741 ecoff_directive_val (ignore)
2744 if (coff_sym_name == (char *) NULL)
2746 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2747 demand_empty_rest_of_line ();
2751 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2752 coff_value = get_absolute_expression ();
2758 name = input_line_pointer;
2759 name_end = get_symbol_end ();
2761 if (strcmp (name, ".") == 0)
2762 as_warn ("`.val .' not supported");
2764 coff_sym_value = symbol_find_or_make (name);
2766 *input_line_pointer = name_end;
2768 /* FIXME: gcc can generate address expressions here in unusual
2769 cases (search for "obscure" in sdbout.c), although this is
2770 very unlikely for a MIPS chip. */
2773 demand_empty_rest_of_line ();
2776 /* Handle the .endef directive, which terminates processing of COFF
2777 debugging information for a symbol. */
2780 ecoff_directive_endef (ignore)
2787 demand_empty_rest_of_line ();
2789 if (coff_sym_name == (char *) NULL)
2791 as_warn (".endef pseudo-op used before .def; ignored");
2795 name = coff_sym_name;
2796 coff_sym_name = (char *) NULL;
2798 /* If the symbol is a static or external, we have already gotten the
2799 appropriate type and class, so make sure we don't override those
2800 values. This is needed because there are some type and classes
2801 that are not in COFF, such as short data, etc. */
2802 if (coff_sym_value != (symbolS *) NULL)
2804 coff_symbol_typ = st_Nil;
2805 coff_storage_class = sc_Nil;
2808 coff_type.extra_sizes = coff_tag != (char *) NULL;
2809 if (coff_type.num_dims > 0)
2811 int diff = coff_type.num_dims - coff_type.num_sizes;
2812 int i = coff_type.num_dims - 1;
2815 if (coff_type.num_sizes != 1 || diff < 0)
2817 as_warn ("Bad COFF debugging info");
2821 /* If this is an array, make sure the same number of dimensions
2822 and sizes were passed, creating extra sizes for multiply
2823 dimensioned arrays if not passed. */
2824 coff_type.extra_sizes = 0;
2827 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2830 coff_type.sizes[j] = (((j - diff) >= 0)
2831 ? coff_type.sizes[j - diff]
2836 coff_type.num_sizes = i + 1;
2837 for (i--; i >= 0; i--)
2838 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2839 / coff_type.dimensions[i + 1]);
2842 else if (coff_symbol_typ == st_Member
2843 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2845 /* Is this a bitfield? This is indicated by a structure memeber
2846 having a size field that isn't an array. */
2847 coff_type.bitfield = 1;
2850 /* Except for enumeration members & begin/ending of scopes, put the
2851 type word in the aux. symbol table. */
2852 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2854 else if (coff_inside_enumeration)
2855 indx = cur_file_ptr->void_type;
2858 if (coff_type.basic_type == bt_Struct
2859 || coff_type.basic_type == bt_Union
2860 || coff_type.basic_type == bt_Enum)
2862 if (coff_tag == (char *) NULL)
2864 as_warn ("No tag specified for %s", name);
2868 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2869 coff_type.basic_type);
2872 if (coff_is_function)
2874 last_func_type_info = coff_type;
2875 last_func_sym_value = coff_sym_value;
2879 indx = add_aux_sym_tir (&coff_type,
2881 &cur_file_ptr->thash_head[0]);
2884 /* Do any last minute adjustments that are necessary. */
2885 switch (coff_symbol_typ)
2890 /* For the beginning of structs, unions, and enumerations, the
2891 size info needs to be passed in the value field. */
2893 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2896 as_warn ("Bad COFF debugging information");
2900 coff_value = coff_type.sizes[0];
2902 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2905 /* For the end of structs, unions, and enumerations, omit the
2906 name which is always ".eos". This needs to be done last, so
2907 that any error reporting above gives the correct name. */
2910 name = (char *) NULL;
2912 coff_inside_enumeration = 0;
2915 /* Members of structures and unions that aren't bitfields, need
2916 to adjust the value from a byte offset to a bit offset.
2917 Members of enumerations do not have the value adjusted, and
2918 can be distinguished by indx == indexNil. For enumerations,
2919 update the maximum enumeration value. */
2921 if (! coff_type.bitfield && ! coff_inside_enumeration)
2927 /* Add the symbol. */
2928 sym = add_ecoff_symbol (name,
2932 (symint_t) coff_value,
2935 /* deal with struct, union, and enum tags. */
2936 if (coff_symbol_typ == st_Block)
2938 /* Create or update the tag information. */
2939 tag_t *tag_ptr = get_tag (name,
2941 coff_type.basic_type);
2944 /* Remember any forward references. */
2945 for (pf = &sym->forward_ref;
2946 *pf != (forward_t *) NULL;
2949 *pf = tag_ptr->forward_ref;
2950 tag_ptr->forward_ref = (forward_t *) NULL;
2954 /* Parse .end directives. */
2957 ecoff_directive_end (ignore)
2965 if (cur_file_ptr == (efdr_t *) NULL)
2967 as_warn (".end directive without a preceding .file directive");
2968 demand_empty_rest_of_line ();
2972 if (cur_proc_ptr == (proc_t *) NULL)
2974 as_warn (".end directive without a preceding .ent directive");
2975 demand_empty_rest_of_line ();
2979 name = input_line_pointer;
2980 name_end = get_symbol_end ();
2983 if (! is_name_beginner (ch))
2985 as_warn (".end directive has no name");
2986 *input_line_pointer = name_end;
2987 demand_empty_rest_of_line ();
2991 /* The value is the distance between the .end directive and the
2992 corresponding symbol. We create a fake symbol to hold the
2993 current location, and put in the offset when we write out the
2995 ent = symbol_find (name);
2996 if (ent == (symbolS *) NULL)
2997 as_warn (".end directive names unknown symbol");
3000 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3001 symbol_new ("L0\001", now_seg,
3002 (valueT) frag_now_fix (),
3004 (symint_t) 0, (symint_t) 0);
3005 if (generate_asm_line_stab)
3009 n = xmalloc (strlen (name) + 4);
3012 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
3013 ent, 0, ECOFF_MARK_STAB (N_FUN));
3017 cur_proc_ptr = (proc_t *) NULL;
3019 *input_line_pointer = name_end;
3020 demand_empty_rest_of_line ();
3023 /* Parse .ent directives. */
3026 ecoff_directive_ent (ignore)
3033 if (cur_file_ptr == (efdr_t *) NULL)
3034 add_file ((const char *) NULL, 0);
3036 if (cur_proc_ptr != (proc_t *) NULL)
3038 as_warn ("second .ent directive found before .end directive");
3039 demand_empty_rest_of_line ();
3043 name = input_line_pointer;
3044 name_end = get_symbol_end ();
3047 if (! is_name_beginner (ch))
3049 as_warn (".ent directive has no name");
3050 *input_line_pointer = name_end;
3051 demand_empty_rest_of_line ();
3055 add_procedure (name);
3057 *input_line_pointer = name_end;
3059 /* The .ent directive is sometimes followed by a number. I'm not
3060 really sure what the number means. I don't see any way to store
3061 the information in the PDR. The Irix 4 assembler seems to ignore
3064 if (*input_line_pointer == ',')
3066 ++input_line_pointer;
3069 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3070 (void) get_absolute_expression ();
3072 demand_empty_rest_of_line ();
3075 /* Parse .file directives. */
3078 ecoff_directive_file (ignore)
3085 if (cur_proc_ptr != (proc_t *) NULL)
3087 as_warn ("No way to handle .file within .ent/.end section");
3088 demand_empty_rest_of_line ();
3092 indx = (int) get_absolute_expression ();
3094 /* FIXME: we don't have to save the name here. */
3095 name = demand_copy_C_string (&len);
3097 add_file (name, indx - 1);
3099 demand_empty_rest_of_line ();
3102 /* Parse .fmask directives. */
3105 ecoff_directive_fmask (ignore)
3110 if (cur_proc_ptr == (proc_t *) NULL)
3112 as_warn (".fmask outside of .ent");
3113 demand_empty_rest_of_line ();
3117 if (get_absolute_expression_and_terminator (&val) != ',')
3119 as_warn ("Bad .fmask directive");
3120 --input_line_pointer;
3121 demand_empty_rest_of_line ();
3125 cur_proc_ptr->pdr.fregmask = val;
3126 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3128 demand_empty_rest_of_line ();
3131 /* Parse .frame directives. */
3134 ecoff_directive_frame (ignore)
3139 if (cur_proc_ptr == (proc_t *) NULL)
3141 as_warn (".frame outside of .ent");
3142 demand_empty_rest_of_line ();
3146 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3149 if (*input_line_pointer++ != ','
3150 || get_absolute_expression_and_terminator (&val) != ',')
3152 as_warn ("Bad .frame directive");
3153 --input_line_pointer;
3154 demand_empty_rest_of_line ();
3158 cur_proc_ptr->pdr.frameoffset = val;
3160 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3162 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3163 to Sandro. I don't yet know where this value should be stored, if
3165 demand_empty_rest_of_line ();
3171 /* Parse .mask directives. */
3174 ecoff_directive_mask (ignore)
3179 if (cur_proc_ptr == (proc_t *) NULL)
3181 as_warn (".mask outside of .ent");
3182 demand_empty_rest_of_line ();
3186 if (get_absolute_expression_and_terminator (&val) != ',')
3188 as_warn ("Bad .mask directive");
3189 --input_line_pointer;
3190 demand_empty_rest_of_line ();
3194 cur_proc_ptr->pdr.regmask = val;
3195 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3197 demand_empty_rest_of_line ();
3200 /* Parse .loc directives. */
3203 ecoff_directive_loc (ignore)
3206 lineno_list_t *list;
3209 if (cur_file_ptr == (efdr_t *) NULL)
3211 as_warn (".loc before .file");
3212 demand_empty_rest_of_line ();
3216 if (now_seg != text_section)
3218 as_warn (".loc outside of .text");
3219 demand_empty_rest_of_line ();
3223 /* Skip the file number. */
3225 get_absolute_expression ();
3228 lineno = get_absolute_expression ();
3232 listing_source_line (lineno);
3235 /* If we're building stabs, then output a special label rather than
3236 ECOFF line number info. */
3239 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3240 symbol_new ("L0\001", now_seg,
3241 (valueT) frag_now_fix (),
3247 list = allocate_lineno_list ();
3249 list->next = (lineno_list_t *) NULL;
3250 list->file = cur_file_ptr;
3251 list->proc = cur_proc_ptr;
3252 list->frag = frag_now;
3253 list->paddr = frag_now_fix ();
3254 list->lineno = lineno;
3256 /* A .loc directive will sometimes appear before a .ent directive,
3257 which means that cur_proc_ptr will be NULL here. Arrange to
3259 if (cur_proc_ptr == (proc_t *) NULL)
3263 pl = &noproc_lineno;
3264 while (*pl != (lineno_list_t *) NULL)
3270 *last_lineno_ptr = list;
3271 last_lineno_ptr = &list->next;
3275 /* Make sure the @stabs symbol is emitted. */
3283 /* Add a dummy @stabs dymbol. */
3285 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3287 (symint_t) -1, ECOFF_MARK_STAB (0));
3291 /* Handle .stabs directives. The actual parsing routine is done by a
3292 generic routine. This routine is called via OBJ_PROCESS_STAB.
3293 When this is called, input_line_pointer will be pointing at the
3294 value field of the stab.
3296 .stabs directives have five fields:
3297 "string" a string, encoding the type information.
3298 code a numeric code, defined in <stab.h>
3300 desc a zero or line number
3301 value a numeric value or an address.
3303 If the value is relocatable, we transform this into:
3304 iss points as an index into string space
3305 value value from lookup of the name
3306 st st from lookup of the name
3307 sc sc from lookup of the name
3308 index code|CODE_MASK
3310 If the value is not relocatable, we transform this into:
3311 iss points as an index into string space
3315 index code|CODE_MASK
3317 .stabn directives have four fields (string is null):
3318 code a numeric code, defined in <stab.h>
3320 desc a zero or a line number
3321 value a numeric value or an address. */
3324 ecoff_stab (what, string, type, other, desc)
3331 efdr_t *save_file_ptr = cur_file_ptr;
3337 localsym_t *hold = NULL;
3339 /* We don't handle .stabd. */
3340 if (what != 's' && what != 'n')
3342 as_bad (".stab%c is not supported", what);
3346 /* A .stabn uses a null name, not an empty string. */
3350 /* We ignore the other field. */
3352 as_warn (".stab%c: ignoring non-zero other field", what);
3354 /* Make sure we have a current file. */
3355 if (cur_file_ptr == (efdr_t *) NULL)
3357 add_file ((const char *) NULL, 0);
3358 save_file_ptr = cur_file_ptr;
3361 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3363 if (stabs_seen == 0)
3366 /* Line number stabs are handled differently, since they have two
3367 values, the line number and the address of the label. We use the
3368 index field (aka desc) to hold the line number, and the value
3369 field to hold the address. The symbol type is st_Label, which
3370 should be different from the other stabs, so that gdb can
3372 if (type == N_SLINE)
3380 listing_source_line ((unsigned int) desc);
3383 dummy_symr.index = desc;
3384 if (dummy_symr.index != desc)
3386 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3391 name = input_line_pointer;
3392 name_end = get_symbol_end ();
3394 sym = symbol_find_or_make (name);
3395 *input_line_pointer = name_end;
3405 if (listing && (type == N_SO || type == N_SOL))
3406 listing_source_file (string);
3409 if (isdigit (*input_line_pointer)
3410 || *input_line_pointer == '-'
3411 || *input_line_pointer == '+')
3415 sym = (symbolS *) NULL;
3416 value = get_absolute_expression ();
3418 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3420 as_warn ("Illegal .stab%c directive, bad character", what);
3428 name = input_line_pointer;
3429 name_end = get_symbol_end ();
3431 sym = symbol_find_or_make (name);
3437 *input_line_pointer = name_end;
3438 if (name_end == '+' || name_end == '-')
3440 ++input_line_pointer;
3441 value = get_absolute_expression ();
3442 if (name_end == '-')
3447 indx = ECOFF_MARK_STAB (type);
3450 /* Don't store the stabs symbol we are creating as the type of the
3451 ECOFF symbol. We want to compute the type of the ECOFF symbol
3453 if (sym != (symbolS *) NULL)
3454 hold = sym->ecoff_symbol;
3456 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3458 if (sym != (symbolS *) NULL)
3459 sym->ecoff_symbol = hold;
3461 /* Restore normal file type. */
3462 cur_file_ptr = save_file_ptr;
3465 /* Frob an ECOFF symbol. Small common symbols go into a special
3466 .scommon section rather than bfd_com_section. */
3469 ecoff_frob_symbol (sym)
3472 if (S_IS_COMMON (sym)
3473 && S_GET_VALUE (sym) > 0
3474 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3476 static asection scom_section;
3477 static asymbol scom_symbol;
3479 /* We must construct a fake section similar to bfd_com_section
3480 but with the name .scommon. */
3481 if (scom_section.name == NULL)
3483 scom_section = bfd_com_section;
3484 scom_section.name = ".scommon";
3485 scom_section.output_section = &scom_section;
3486 scom_section.symbol = &scom_symbol;
3487 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3488 scom_symbol = *bfd_com_section.symbol;
3489 scom_symbol.name = ".scommon";
3490 scom_symbol.section = &scom_section;
3492 S_SET_SEGMENT (sym, &scom_section);
3496 /* Add bytes to the symbolic information buffer. */
3499 ecoff_add_bytes (buf, bufend, bufptr, need)
3509 need -= *bufend - bufptr;
3510 if (need < PAGE_SIZE)
3512 want = (*bufend - *buf) + need;
3513 *buf = xrealloc (*buf, want);
3514 *bufend = *buf + want;
3518 /* Adjust the symbolic information buffer to the alignment required
3519 for the ECOFF target debugging information. */
3521 static unsigned long
3522 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3523 const struct ecoff_debug_swap *backend;
3526 unsigned long offset;
3529 bfd_size_type align;
3531 align = backend->debug_align;
3532 if ((offset & (align - 1)) != 0)
3536 add = align - (offset & (align - 1));
3537 if (*bufend - (*buf + offset) < add)
3538 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3539 memset (*buf + offset, 0, add);
3541 if (bufptrptr != (char **) NULL)
3542 *bufptrptr = *buf + offset;
3548 /* Build the line number information. */
3550 static unsigned long
3551 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3552 const struct ecoff_debug_swap *backend;
3555 unsigned long offset;
3559 register lineno_list_t *l;
3560 lineno_list_t *last;
3566 lineno_list_t first;
3568 if (linecntptr != (long *) NULL)
3571 bufptr = *buf + offset;
3573 file = (efdr_t *) NULL;
3574 proc = (proc_t *) NULL;
3575 last = (lineno_list_t *) NULL;
3580 /* For some reason the address of the first procedure is ignored
3581 when reading line numbers. This doesn't matter if the address of
3582 the first procedure is 0, but when gcc is generating MIPS
3583 embedded PIC code, it will put strings in the .text section
3584 before the first procedure. We cope by inserting a dummy line if
3585 the address of the first procedure is not 0. Hopefully this
3586 won't screw things up too badly. */
3587 if (first_proc_ptr != (proc_t *) NULL
3588 && first_lineno != (lineno_list_t *) NULL
3589 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3590 + bfd_get_section_vma (stdoutput,
3591 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3594 first.file = first_lineno->file;
3595 first.proc = first_lineno->proc;
3596 first.frag = &zero_address_frag;
3600 first.next = first_lineno;
3601 first_lineno = &first;
3604 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3609 /* Get the offset to the memory address of the next line number
3610 (in words). Do this first, so that we can skip ahead to the
3611 next useful line number entry. */
3612 if (l->next == (lineno_list_t *) NULL)
3614 /* We want a count of zero, but it will be decremented
3615 before it is used. */
3620 count = ((l->next->frag->fr_address + l->next->paddr
3621 - (l->frag->fr_address + l->paddr))
3625 /* Don't change last, so we still get the right delta. */
3630 if (l->file != file || l->proc != proc)
3632 if (l->proc != proc && proc != (proc_t *) NULL)
3633 proc->pdr.lnHigh = last->lineno;
3634 if (l->file != file && file != (efdr_t *) NULL)
3636 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3637 /* The cline field is ill-documented. This is a guess
3638 at the right value. */
3639 file->fdr.cline = totcount + count;
3640 if (linecntptr != (long *) NULL)
3641 *linecntptr += totcount + count;
3645 if (l->file != file)
3648 file->fdr.ilineBase = iline;
3649 file->fdr.cbLineOffset = c;
3651 if (l->proc != proc)
3654 if (proc != (proc_t *) NULL)
3656 proc->pdr.lnLow = l->lineno;
3657 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3658 /* The iline field is ill-documented. This is a
3659 guess at the right value. */
3660 proc->pdr.iline = totcount;
3664 last = (lineno_list_t *) NULL;
3669 /* Get the offset to this line number. */
3670 if (last == (lineno_list_t *) NULL)
3673 delta = l->lineno - last->lineno;
3675 /* Put in the offset to this line number. */
3680 /* 1 is added to each count read. */
3682 /* We can only adjust the word count by up to 15 words at a
3694 if (delta >= -7 && delta <= 7)
3696 if (bufptr >= *bufend)
3697 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3698 *bufptr++ = setcount + (delta << 4);
3706 if (*bufend - bufptr < 3)
3707 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3708 *bufptr++ = setcount + (8 << 4);
3709 if (delta < -0x8000)
3714 else if (delta > 0x7fff)
3724 *bufptr++ = set >> 8;
3725 *bufptr++ = set & 0xffff;
3730 /* Finish adjusting the count. */
3733 if (bufptr >= *bufend)
3734 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3735 /* 1 is added to each count read. */
3754 if (proc != (proc_t *) NULL)
3755 proc->pdr.lnHigh = last->lineno;
3756 if (file != (efdr_t *) NULL)
3758 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3759 file->fdr.cline = totcount;
3762 if (linecntptr != (long *) NULL)
3763 *linecntptr += totcount;
3765 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3770 /* Build and swap out the symbols. */
3772 static unsigned long
3773 ecoff_build_symbols (backend, buf, bufend, offset)
3774 const struct ecoff_debug_swap *backend;
3777 unsigned long offset;
3779 const bfd_size_type external_sym_size = backend->external_sym_size;
3780 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3781 = backend->swap_sym_out;
3784 vlinks_t *file_link;
3786 sym_out = *buf + offset;
3790 /* The symbols are stored by file. */
3791 for (file_link = file_desc.first;
3792 file_link != (vlinks_t *) NULL;
3793 file_link = file_link->next)
3800 if (file_link->next == (vlinks_t *) NULL)
3801 fil_cnt = file_desc.objects_last_page;
3803 fil_cnt = file_desc.objects_per_page;
3804 fil_ptr = file_link->datum->file;
3805 fil_end = fil_ptr + fil_cnt;
3806 for (; fil_ptr < fil_end; fil_ptr++)
3810 fil_ptr->fdr.isymBase = isym;
3812 for (sym_link = fil_ptr->symbols.first;
3813 sym_link != (vlinks_t *) NULL;
3814 sym_link = sym_link->next)
3817 localsym_t *sym_ptr;
3818 localsym_t *sym_end;
3820 if (sym_link->next == (vlinks_t *) NULL)
3821 sym_cnt = fil_ptr->symbols.objects_last_page;
3823 sym_cnt = fil_ptr->symbols.objects_per_page;
3824 sym_ptr = sym_link->datum->sym;
3825 sym_end = sym_ptr + sym_cnt;
3826 for (; sym_ptr < sym_end; sym_ptr++)
3832 know (sym_ptr->file_ptr == fil_ptr);
3834 /* If there is no associated gas symbol, then this
3835 is a pure debugging symbol. We have already
3836 added the name (if any) to fil_ptr->strings.
3837 Otherwise we must decide whether this is an
3838 external or a local symbol (actually, it may be
3839 both if the local provides additional debugging
3840 information for the external). */
3842 as_sym = sym_ptr->as_sym;
3843 if (as_sym != (symbolS *) NULL)
3847 /* The value of a block start symbol is the
3848 offset from the start of the procedure. For
3849 other symbols we just use the gas value (but
3850 we must offset it by the vma of the section,
3851 just as BFD does, because BFD will not see
3853 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3854 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3858 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3859 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3860 if (S_GET_SEGMENT (as_sym)
3861 != S_GET_SEGMENT (begin_sym))
3862 as_warn (".begin/.bend in different segments");
3863 sym_ptr->ecoff_sym.asym.value =
3864 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3867 sym_ptr->ecoff_sym.asym.value =
3868 (S_GET_VALUE (as_sym)
3869 + bfd_get_section_vma (stdoutput,
3870 S_GET_SEGMENT (as_sym)));
3872 /* Set st_Proc to st_StaticProc for local
3874 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3875 && S_IS_DEFINED (as_sym)
3876 && ! S_IS_EXTERNAL (as_sym))
3877 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3879 /* Get the type and storage class based on where
3880 the symbol actually wound up. Traditionally,
3881 N_LBRAC and N_RBRAC are *not* relocated. */
3882 indx = sym_ptr->ecoff_sym.asym.index;
3883 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3884 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
3885 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3886 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3887 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3890 const char *segname;
3894 seg = S_GET_SEGMENT (as_sym);
3895 segname = segment_name (seg);
3897 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
3898 && (S_IS_EXTERNAL (as_sym)
3899 || ! S_IS_DEFINED (as_sym)))
3901 else if (seg == text_section)
3906 if (! S_IS_DEFINED (as_sym))
3908 if (as_sym->ecoff_extern_size == 0
3909 || (as_sym->ecoff_extern_size
3910 > bfd_get_gp_size (stdoutput)))
3915 sym_ptr->ecoff_sym.asym.value =
3916 as_sym->ecoff_extern_size;
3919 else if (S_IS_COMMON (as_sym))
3921 if (S_GET_VALUE (as_sym) > 0
3922 && (S_GET_VALUE (as_sym)
3923 <= bfd_get_gp_size (stdoutput)))
3928 else if (seg == text_section)
3930 else if (seg == data_section)
3932 else if (strcmp (segname, ".rdata") == 0
3933 || strcmp (segname, ".rodata") == 0)
3935 else if (strcmp (segname, ".sdata") == 0)
3937 else if (seg == bss_section)
3939 else if (strcmp (segname, ".sbss") == 0)
3941 else if (seg == &bfd_abs_section)
3946 sym_ptr->ecoff_sym.asym.st = (int) st;
3947 sym_ptr->ecoff_sym.asym.sc = (int) sc;
3950 /* This is just an external symbol if it is
3951 outside a procedure and it has a type.
3952 FIXME: g++ will generate symbols which have
3953 different names in the debugging information
3954 than the actual symbol. Should we handle
3956 if ((S_IS_EXTERNAL (as_sym)
3957 || ! S_IS_DEFINED (as_sym))
3958 && sym_ptr->proc_ptr == (proc_t *) NULL
3959 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
3960 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
3963 /* If an st_end symbol has an associated gas
3964 symbol, then it is a local label created for
3965 a .bend or .end directive. Stabs line
3966 numbers will have \001 in the names. */
3968 && sym_ptr->ecoff_sym.asym.st != st_End
3969 && strchr (sym_ptr->name, '\001') == 0)
3970 sym_ptr->ecoff_sym.asym.iss =
3971 add_string (&fil_ptr->strings,
3977 /* We now know the index of this symbol; fill in
3978 locations that have been waiting for that
3980 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3982 localsym_t *begin_ptr;
3986 begin_ptr = sym_ptr->begin_ptr;
3987 know (begin_ptr->sym_index != -1);
3988 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
3989 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
3990 sym_ptr->ecoff_sym.asym.iss =
3991 begin_ptr->ecoff_sym.asym.iss;
3993 begin_type = begin_ptr->ecoff_sym.asym.st;
3994 if (begin_type == st_File
3995 || begin_type == st_Block)
3997 begin_ptr->ecoff_sym.asym.index =
3998 isym - ifilesym + 1;
3999 (*swap_sym_out) (stdoutput,
4000 &begin_ptr->ecoff_sym.asym,
4003 + (begin_ptr->sym_index
4004 * external_sym_size)));
4008 know (begin_ptr->index_ptr != (aux_t *) NULL);
4009 begin_ptr->index_ptr->data.isym =
4010 isym - ifilesym + 1;
4013 /* The value of the symbol marking the end of a
4014 procedure is the size of the procedure. The
4015 value of the symbol marking the end of a
4016 block is the offset from the start of the
4017 procedure to the block. */
4018 if (begin_type == st_Proc
4019 || begin_type == st_StaticProc)
4021 know (as_sym != (symbolS *) NULL);
4022 know (begin_ptr->as_sym != (symbolS *) NULL);
4023 if (S_GET_SEGMENT (as_sym)
4024 != S_GET_SEGMENT (begin_ptr->as_sym))
4025 as_warn (".begin/.bend in different segments");
4026 sym_ptr->ecoff_sym.asym.value =
4027 (S_GET_VALUE (as_sym)
4028 - S_GET_VALUE (begin_ptr->as_sym));
4030 else if (begin_type == st_Block
4031 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4035 know (as_sym != (symbolS *) NULL);
4036 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4037 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4038 if (S_GET_SEGMENT (as_sym)
4039 != S_GET_SEGMENT (begin_sym))
4040 as_warn (".begin/.bend in different segments");
4041 sym_ptr->ecoff_sym.asym.value =
4042 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4046 for (f = sym_ptr->forward_ref;
4047 f != (forward_t *) NULL;
4051 f->ifd_ptr->data.isym = fil_ptr->file_index;
4052 f->index_ptr->data.rndx.index = isym - ifilesym;
4057 if (*bufend - sym_out < external_sym_size)
4058 sym_out = ecoff_add_bytes (buf, bufend,
4061 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4063 sym_out += external_sym_size;
4065 sym_ptr->sym_index = isym;
4067 if (sym_ptr->proc_ptr != (proc_t *) NULL
4068 && sym_ptr->proc_ptr->sym == sym_ptr)
4069 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4074 /* Record the local symbol index and file number in
4075 case this is an external symbol. Note that this
4076 destroys the asym.index field. */
4077 if (as_sym != (symbolS *) NULL
4078 && as_sym->ecoff_symbol == sym_ptr)
4080 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4081 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4084 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4086 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4090 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4094 return offset + isym * external_sym_size;
4097 /* Swap out the procedure information. */
4099 static unsigned long
4100 ecoff_build_procs (backend, buf, bufend, offset)
4101 const struct ecoff_debug_swap *backend;
4104 unsigned long offset;
4106 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4107 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4108 = backend->swap_pdr_out;
4111 vlinks_t *file_link;
4113 pdr_out = *buf + offset;
4117 /* The procedures are stored by file. */
4118 for (file_link = file_desc.first;
4119 file_link != (vlinks_t *) NULL;
4120 file_link = file_link->next)
4126 if (file_link->next == (vlinks_t *) NULL)
4127 fil_cnt = file_desc.objects_last_page;
4129 fil_cnt = file_desc.objects_per_page;
4130 fil_ptr = file_link->datum->file;
4131 fil_end = fil_ptr + fil_cnt;
4132 for (; fil_ptr < fil_end; fil_ptr++)
4134 vlinks_t *proc_link;
4137 fil_ptr->fdr.ipdFirst = iproc;
4139 for (proc_link = fil_ptr->procs.first;
4140 proc_link != (vlinks_t *) NULL;
4141 proc_link = proc_link->next)
4147 if (proc_link->next == (vlinks_t *) NULL)
4148 prc_cnt = fil_ptr->procs.objects_last_page;
4150 prc_cnt = fil_ptr->procs.objects_per_page;
4151 proc_ptr = proc_link->datum->proc;
4152 proc_end = proc_ptr + prc_cnt;
4153 for (; proc_ptr < proc_end; proc_ptr++)
4158 adr_sym = proc_ptr->sym->as_sym;
4159 adr = (S_GET_VALUE (adr_sym)
4160 + bfd_get_section_vma (stdoutput,
4161 S_GET_SEGMENT (adr_sym)));
4164 /* This code used to force the adr of the very
4165 first fdr to be 0. However, the native tools
4166 don't do that, and I can't remember why it
4167 used to work that way, so I took it out. */
4168 fil_ptr->fdr.adr = adr;
4171 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4172 if (*bufend - pdr_out < external_pdr_size)
4173 pdr_out = ecoff_add_bytes (buf, bufend,
4176 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4177 pdr_out += external_pdr_size;
4181 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4185 return offset + iproc * external_pdr_size;
4188 /* Swap out the aux information. */
4190 static unsigned long
4191 ecoff_build_aux (backend, buf, bufend, offset)
4192 const struct ecoff_debug_swap *backend;
4195 unsigned long offset;
4198 union aux_ext *aux_out;
4200 vlinks_t *file_link;
4202 bigendian = stdoutput->xvec->header_byteorder_big_p;
4204 aux_out = (union aux_ext *) (*buf + offset);
4208 /* The aux entries are stored by file. */
4209 for (file_link = file_desc.first;
4210 file_link != (vlinks_t *) NULL;
4211 file_link = file_link->next)
4217 if (file_link->next == (vlinks_t *) NULL)
4218 fil_cnt = file_desc.objects_last_page;
4220 fil_cnt = file_desc.objects_per_page;
4221 fil_ptr = file_link->datum->file;
4222 fil_end = fil_ptr + fil_cnt;
4223 for (; fil_ptr < fil_end; fil_ptr++)
4227 fil_ptr->fdr.fBigendian = bigendian;
4228 fil_ptr->fdr.iauxBase = iaux;
4229 for (aux_link = fil_ptr->aux_syms.first;
4230 aux_link != (vlinks_t *) NULL;
4231 aux_link = aux_link->next)
4237 if (aux_link->next == (vlinks_t *) NULL)
4238 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4240 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4241 aux_ptr = aux_link->datum->aux;
4242 aux_end = aux_ptr + aux_cnt;
4243 for (; aux_ptr < aux_end; aux_ptr++)
4245 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4246 aux_out = ((union aux_ext *)
4247 ecoff_add_bytes (buf, bufend,
4249 sizeof (union aux_ext)));
4250 switch (aux_ptr->type)
4253 (*backend->swap_tir_out) (bigendian,
4258 (*backend->swap_rndx_out) (bigendian,
4259 &aux_ptr->data.rndx,
4263 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4267 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4271 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4275 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4279 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4283 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4292 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4296 return ecoff_padding_adjust (backend, buf, bufend,
4297 offset + iaux * sizeof (union aux_ext),
4301 /* Copy out the strings from a varray_t. This returns the number of
4302 bytes copied, rather than the new offset. */
4304 static unsigned long
4305 ecoff_build_strings (buf, bufend, offset, vp)
4308 unsigned long offset;
4315 str_out = *buf + offset;
4319 for (str_link = vp->first;
4320 str_link != (vlinks_t *) NULL;
4321 str_link = str_link->next)
4323 unsigned long str_cnt;
4325 if (str_link->next == (vlinks_t *) NULL)
4326 str_cnt = vp->objects_last_page;
4328 str_cnt = vp->objects_per_page;
4330 if (*bufend - str_out < str_cnt)
4331 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4333 memcpy (str_out, str_link->datum->byte, str_cnt);
4341 /* Dump out the local strings. */
4343 static unsigned long
4344 ecoff_build_ss (backend, buf, bufend, offset)
4345 const struct ecoff_debug_swap *backend;
4348 unsigned long offset;
4351 vlinks_t *file_link;
4355 for (file_link = file_desc.first;
4356 file_link != (vlinks_t *) NULL;
4357 file_link = file_link->next)
4363 if (file_link->next == (vlinks_t *) NULL)
4364 fil_cnt = file_desc.objects_last_page;
4366 fil_cnt = file_desc.objects_per_page;
4367 fil_ptr = file_link->datum->file;
4368 fil_end = fil_ptr + fil_cnt;
4369 for (; fil_ptr < fil_end; fil_ptr++)
4373 fil_ptr->fdr.issBase = iss;
4374 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4376 fil_ptr->fdr.cbSs = ss_cnt;
4381 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4385 /* Swap out the file descriptors. */
4387 static unsigned long
4388 ecoff_build_fdr (backend, buf, bufend, offset)
4389 const struct ecoff_debug_swap *backend;
4392 unsigned long offset;
4394 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4395 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4396 = backend->swap_fdr_out;
4399 vlinks_t *file_link;
4403 fdr_out = *buf + offset;
4405 for (file_link = file_desc.first;
4406 file_link != (vlinks_t *) NULL;
4407 file_link = file_link->next)
4413 if (file_link->next == (vlinks_t *) NULL)
4414 fil_cnt = file_desc.objects_last_page;
4416 fil_cnt = file_desc.objects_per_page;
4417 fil_ptr = file_link->datum->file;
4418 fil_end = fil_ptr + fil_cnt;
4419 for (; fil_ptr < fil_end; fil_ptr++)
4421 if (*bufend - fdr_out < external_fdr_size)
4422 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4424 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4425 fdr_out += external_fdr_size;
4430 return offset + ifile * external_fdr_size;
4433 /* Set up the external symbols. These are supposed to be handled by
4434 the backend. This routine just gets the right information and
4435 calls a backend function to deal with it. */
4440 register symbolS *sym;
4442 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4444 if (sym->ecoff_symbol == NULL)
4447 /* If this is a local symbol, then force the fields to zero. */
4448 if (! S_IS_EXTERNAL (sym)
4449 && S_IS_DEFINED (sym))
4451 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4452 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4453 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4454 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4457 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4461 /* Build the ECOFF dbeugging information. */
4464 ecoff_build_debug (hdr, bufp, backend)
4467 const struct ecoff_debug_swap *backend;
4469 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4474 efdr_t *hold_file_ptr;
4475 proc_t * hold_proc_ptr;
4479 unsigned long offset;
4481 /* Make sure we have a file. */
4482 if (first_file == (efdr_t *) NULL)
4483 add_file ((const char *) NULL, 0);
4485 /* Handle any top level tags. */
4486 for (ptag = top_tag_head->first_tag;
4487 ptag != (tag_t *) NULL;
4490 if (ptag->forward_ref != (forward_t *) NULL)
4491 add_unknown_tag (ptag);
4493 ptag_next = ptag->same_block;
4494 ptag->hash_ptr->tag_ptr = ptag->same_name;
4498 free_thead (top_tag_head);
4500 /* Look through the symbols. Add debugging information for each
4501 symbol that has not already received it. */
4502 hold_file_ptr = cur_file_ptr;
4503 hold_proc_ptr = cur_proc_ptr;
4504 cur_proc_ptr = (proc_t *) NULL;
4505 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4507 if (sym->ecoff_symbol != NULL
4508 || sym->ecoff_file == (efdr_t *) NULL
4509 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4512 cur_file_ptr = sym->ecoff_file;
4513 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4514 S_GET_VALUE (sym), indexNil);
4516 cur_proc_ptr = hold_proc_ptr;
4517 cur_file_ptr = hold_file_ptr;
4519 /* Output an ending symbol for all the files. We have to do this
4520 here for the last file, so we may as well do it for all of the
4523 for (fil_ptr = first_file;
4524 fil_ptr != (efdr_t *) NULL;
4525 fil_ptr = fil_ptr->next_file)
4527 cur_file_ptr = fil_ptr;
4528 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4530 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4533 as_warn ("Missing .end or .bend at end of file");
4537 (void) add_ecoff_symbol ((const char *) NULL,
4544 /* Build the symbolic information. */
4546 buf = xmalloc (PAGE_SIZE);
4547 bufend = buf + PAGE_SIZE;
4549 /* Build the line number information. */
4550 hdr->cbLineOffset = offset;
4551 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4553 hdr->cbLine = offset - hdr->cbLineOffset;
4555 /* We don't use dense numbers at all. */
4557 hdr->cbDnOffset = 0;
4559 /* We can't build the PDR table until we have built the symbols,
4560 because a PDR contains a symbol index. However, we set aside
4561 space at this point. */
4562 hdr->ipdMax = proc_cnt;
4563 hdr->cbPdOffset = offset;
4564 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4565 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4566 proc_cnt * external_pdr_size);
4567 offset += proc_cnt * external_pdr_size;
4569 /* Build the local symbols. */
4570 hdr->cbSymOffset = offset;
4571 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4572 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4574 /* Building the symbols initializes the symbol index in the PDR's.
4575 Now we can swap out the PDR's. */
4576 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4578 /* We don't use optimization symbols. */
4580 hdr->cbOptOffset = 0;
4582 /* Swap out the auxiliary type information. */
4583 hdr->cbAuxOffset = offset;
4584 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4585 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4587 /* Copy out the local strings. */
4588 hdr->cbSsOffset = offset;
4589 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4590 hdr->issMax = offset - hdr->cbSsOffset;
4592 /* We don't use relative file descriptors. */
4594 hdr->cbRfdOffset = 0;
4596 /* Swap out the file descriptors. */
4597 hdr->cbFdOffset = offset;
4598 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4599 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4601 /* Set up the external symbols, which are handled by the BFD back
4604 hdr->cbSsExtOffset = 0;
4606 hdr->cbExtOffset = 0;
4609 know ((offset & (backend->debug_align - 1)) == 0);
4611 /* FIXME: This value should be determined from the .verstamp directive,
4612 with reasonable defaults in config files. */
4614 hdr->vstamp = 0x030b;
4616 hdr->vstamp = 0x020b;
4623 /* Allocate a cluster of pages. */
4625 #ifndef MALLOC_CHECK
4628 allocate_cluster (npages)
4629 unsigned long npages;
4631 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4635 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4638 memset (value, 0, npages * PAGE_USIZE);
4644 static page_t *cluster_ptr = NULL;
4645 static unsigned long pages_left = 0;
4647 #endif /* MALLOC_CHECK */
4649 /* Allocate one page (which is initialized to 0). */
4654 #ifndef MALLOC_CHECK
4656 if (pages_left == 0)
4658 pages_left = MAX_CLUSTER_PAGES;
4659 cluster_ptr = allocate_cluster (pages_left);
4663 return cluster_ptr++;
4665 #else /* MALLOC_CHECK */
4669 ptr = xmalloc (PAGE_USIZE);
4670 memset (ptr, 0, PAGE_USIZE);
4673 #endif /* MALLOC_CHECK */
4676 /* Allocate scoping information. */
4681 register scope_t *ptr;
4682 static scope_t initial_scope;
4684 #ifndef MALLOC_CHECK
4686 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4687 if (ptr != (scope_t *) NULL)
4688 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4691 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4692 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4694 if (unallocated == 0)
4696 unallocated = PAGE_SIZE / sizeof (scope_t);
4697 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4698 alloc_counts[(int)alloc_type_scope].total_pages++;
4701 ptr = &cur_page->scope[--unallocated];
4702 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4707 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4711 alloc_counts[(int)alloc_type_scope].total_alloc++;
4712 *ptr = initial_scope;
4716 /* Free scoping information. */
4722 alloc_counts[(int)alloc_type_scope].total_free++;
4724 #ifndef MALLOC_CHECK
4725 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4726 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4732 /* Allocate links for pages in a virtual array. */
4737 register vlinks_t *ptr;
4738 static vlinks_t initial_vlinks;
4740 #ifndef MALLOC_CHECK
4742 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4743 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4745 if (unallocated == 0)
4747 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4748 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4749 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4752 ptr = &cur_page->vlinks[--unallocated];
4753 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4757 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4761 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4762 *ptr = initial_vlinks;
4766 /* Allocate string hash buckets. */
4771 register shash_t *ptr;
4772 static shash_t initial_shash;
4774 #ifndef MALLOC_CHECK
4776 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4777 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4779 if (unallocated == 0)
4781 unallocated = PAGE_SIZE / sizeof (shash_t);
4782 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4783 alloc_counts[(int)alloc_type_shash].total_pages++;
4786 ptr = &cur_page->shash[--unallocated];
4787 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4791 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4795 alloc_counts[(int)alloc_type_shash].total_alloc++;
4796 *ptr = initial_shash;
4800 /* Allocate type hash buckets. */
4805 register thash_t *ptr;
4806 static thash_t initial_thash;
4808 #ifndef MALLOC_CHECK
4810 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4811 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4813 if (unallocated == 0)
4815 unallocated = PAGE_SIZE / sizeof (thash_t);
4816 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4817 alloc_counts[(int)alloc_type_thash].total_pages++;
4820 ptr = &cur_page->thash[--unallocated];
4821 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4825 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4829 alloc_counts[(int)alloc_type_thash].total_alloc++;
4830 *ptr = initial_thash;
4834 /* Allocate structure, union, or enum tag information. */
4839 register tag_t *ptr;
4840 static tag_t initial_tag;
4842 #ifndef MALLOC_CHECK
4844 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4845 if (ptr != (tag_t *) NULL)
4846 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4849 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4850 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4852 if (unallocated == 0)
4854 unallocated = PAGE_SIZE / sizeof (tag_t);
4855 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4856 alloc_counts[(int)alloc_type_tag].total_pages++;
4859 ptr = &cur_page->tag[--unallocated];
4860 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4865 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4869 alloc_counts[(int)alloc_type_tag].total_alloc++;
4874 /* Free scoping information. */
4880 alloc_counts[(int)alloc_type_tag].total_free++;
4882 #ifndef MALLOC_CHECK
4883 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4884 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4890 /* Allocate forward reference to a yet unknown tag. */
4895 register forward_t *ptr;
4896 static forward_t initial_forward;
4898 #ifndef MALLOC_CHECK
4900 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4901 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4903 if (unallocated == 0)
4905 unallocated = PAGE_SIZE / sizeof (forward_t);
4906 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4907 alloc_counts[(int)alloc_type_forward].total_pages++;
4910 ptr = &cur_page->forward[--unallocated];
4911 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4915 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4919 alloc_counts[(int)alloc_type_forward].total_alloc++;
4920 *ptr = initial_forward;
4924 /* Allocate head of type hash list. */
4929 register thead_t *ptr;
4930 static thead_t initial_thead;
4932 #ifndef MALLOC_CHECK
4934 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4935 if (ptr != (thead_t *) NULL)
4936 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4939 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4940 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4942 if (unallocated == 0)
4944 unallocated = PAGE_SIZE / sizeof (thead_t);
4945 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4946 alloc_counts[(int)alloc_type_thead].total_pages++;
4949 ptr = &cur_page->thead[--unallocated];
4950 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4955 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4959 alloc_counts[(int)alloc_type_thead].total_alloc++;
4960 *ptr = initial_thead;
4964 /* Free scoping information. */
4970 alloc_counts[(int)alloc_type_thead].total_free++;
4972 #ifndef MALLOC_CHECK
4973 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4974 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4980 static lineno_list_t *
4981 allocate_lineno_list ()
4983 register lineno_list_t *ptr;
4984 static lineno_list_t initial_lineno_list;
4986 #ifndef MALLOC_CHECK
4988 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4989 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4991 if (unallocated == 0)
4993 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4994 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4995 alloc_counts[(int)alloc_type_lineno].total_pages++;
4998 ptr = &cur_page->lineno[--unallocated];
4999 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5003 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5007 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5008 *ptr = initial_lineno_list;
5013 ecoff_set_gp_prolog_size (sz)
5016 if (cur_proc_ptr == 0)
5019 cur_proc_ptr->pdr.gp_prologue = sz;
5020 if (cur_proc_ptr->pdr.gp_prologue != sz)
5022 as_warn ("GP prologue size exceeds field size, using 0 instead");
5023 cur_proc_ptr->pdr.gp_prologue = 0;
5026 cur_proc_ptr->pdr.gp_used = 1;
5030 generate_ecoff_stab (what, string, type, other, desc)
5037 efdr_t *save_file_ptr = cur_file_ptr;
5043 localsym_t *hold = NULL;
5045 /* We don't handle .stabd. */
5046 if (what != 's' && what != 'n')
5048 as_bad (".stab%c is not supported", what);
5052 /* We ignore the other field. */
5054 as_warn (".stab%c: ignoring non-zero other field", what);
5056 /* Make sure we have a current file. */
5057 if (cur_file_ptr == (efdr_t *) NULL)
5059 add_file ((const char *) NULL, 0);
5060 save_file_ptr = cur_file_ptr;
5063 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5065 if (stabs_seen == 0)
5068 /* Line number stabs are handled differently, since they have two
5069 values, the line number and the address of the label. We use the
5070 index field (aka desc) to hold the line number, and the value
5071 field to hold the address. The symbol type is st_Label, which
5072 should be different from the other stabs, so that gdb can
5074 if (type == N_SLINE)
5080 listing_source_line ((unsigned int) desc);
5083 dummy_symr.index = desc;
5084 if (dummy_symr.index != desc)
5086 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5091 sym = symbol_find_or_make ((char *)string);
5100 if (listing && (type == N_SO || type == N_SOL))
5101 listing_source_file (string);
5104 sym = symbol_find_or_make ((char *)string);
5108 indx = ECOFF_MARK_STAB (type);
5111 /* Don't store the stabs symbol we are creating as the type of the
5112 ECOFF symbol. We want to compute the type of the ECOFF symbol
5114 if (sym != (symbolS *) NULL)
5115 hold = sym->ecoff_symbol;
5117 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
5119 if (sym != (symbolS *) NULL)
5120 sym->ecoff_symbol = hold;
5122 /* Restore normal file type. */
5123 cur_file_ptr = save_file_ptr;
5126 static int line_label_cnt = 0;
5128 ecoff_generate_asm_line_stab (filename, lineno)
5134 if (strcmp (current_stabs_filename, filename))
5136 add_file (filename, 0);
5137 generate_asm_line_stab = 1;
5141 /* generate local label $LMnn */
5143 sprintf(ll, "$LM%d", line_label_cnt);
5146 /* generate stab for the line */
5147 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5151 #endif /* ECOFF_DEBUGGING */