1 /* ECOFF debugging support.
2 Copyright (C) 1993, 1994, 1995, 1996 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 the Free
22 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
27 /* This file is compiled conditionally for those targets which use
28 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
31 #ifdef ECOFF_DEBUGGING
33 #include "coff/internal.h"
34 #include "coff/symconst.h"
36 #include "aout/stab_gnu.h"
40 /* Why isn't this in coff/sym.h? */
41 #define ST_RFDESCAPE 0xfff
43 /* This file constructs the information used by the ECOFF debugging
44 format. It just builds a large block of data.
46 We support both ECOFF style debugging and stabs debugging (the
47 stabs symbols are encapsulated in ECOFF symbols). This should let
48 us handle anything the compiler might throw at us. */
50 /* Here is a brief description of the MIPS ECOFF symbol table, by
51 Michael Meissner. The MIPS symbol table has the following pieces:
57 +-- Dense number table
65 +-- Relative file descriptors
77 The symbolic header points to each of the other tables, and also
78 contains the number of entries. It also contains a magic number
79 and MIPS compiler version number, such as 2.0.
81 The auxiliary table is a series of 32 bit integers, that are
82 referenced as needed from the local symbol table. Unlike standard
83 COFF, the aux. information does not follow the symbol that uses
84 it, but rather is a separate table. In theory, this would allow
85 the MIPS compilers to collapse duplicate aux. entries, but I've not
86 noticed this happening with the 1.31 compiler suite. The different
87 types of aux. entries are:
89 1) dnLow: Low bound on array dimension.
91 2) dnHigh: High bound on array dimension.
93 3) isym: Index to the local symbol which is the start of the
94 function for the end of function first aux. entry.
96 4) width: Width of structures and bitfields.
98 5) count: Count of ranges for variant part.
100 6) rndx: A relative index into the symbol table. The relative
101 index field has two parts: rfd which is a pointer into the
102 relative file index table or ST_RFDESCAPE which says the next
103 aux. entry is the file number, and index: which is the pointer
104 into the local symbol within a given file table. This is for
105 things like references to types defined in another file.
107 7) Type information: This is like the COFF type bits, except it
108 is 32 bits instead of 16; they still have room to add new
109 basic types; and they can handle more than 6 levels of array,
110 pointer, function, etc. Each type information field contains
111 the following structure members:
113 a) fBitfield: a bit that says this is a bitfield, and the
114 size in bits follows as the next aux. entry.
116 b) continued: a bit that says the next aux. entry is a
117 continuation of the current type information (in case
118 there are more than 6 levels of array/ptr/function).
120 c) bt: an integer containing the base type before adding
121 array, pointer, function, etc. qualifiers. The
122 current base types that I have documentation for are:
125 btAdr -- address - integer same size as ptr
127 btUChar -- unsigned character
129 btUShort -- unsigned short
131 btUInt -- unsigned int
133 btULong -- unsigned long
134 btFloat -- float (real)
135 btDouble -- Double (real)
136 btStruct -- Structure (Record)
137 btUnion -- Union (variant)
139 btTypedef -- defined via a typedef isymRef
140 btRange -- subrange of int
142 btComplex -- fortran complex
143 btDComplex -- fortran double complex
144 btIndirect -- forward or unnamed typedef
145 btFixedDec -- Fixed Decimal
146 btFloatDec -- Float Decimal
147 btString -- Varying Length Character String
148 btBit -- Aligned Bit String
150 btVoid -- Void (MIPS cc revision >= 2.00)
152 d) tq0 - tq5: type qualifier fields as needed. The
153 current type qualifier fields I have documentation for
156 tqNil -- no more qualifiers
160 tqFar -- 8086 far pointers
164 The dense number table is used in the front ends, and disappears by
165 the time the .o is created.
167 With the 1.31 compiler suite, the optimization symbols don't seem
168 to be used as far as I can tell.
170 The linker is the first entity that creates the relative file
171 descriptor table, and I believe it is used so that the individual
172 file table pointers don't have to be rewritten when the objects are
173 merged together into the program file.
175 Unlike COFF, the basic symbol & string tables are split into
176 external and local symbols/strings. The relocation information
177 only goes off of the external symbol table, and the debug
178 information only goes off of the internal symbol table. The
179 external symbols can have links to an appropriate file index and
180 symbol within the file to give it the appropriate type information.
181 Because of this, the external symbols are actually larger than the
182 internal symbols (to contain the link information), and contain the
183 local symbol structure as a member, though this member is not the
184 first member of the external symbol structure (!). I suspect this
185 split is to make strip easier to deal with.
187 Each file table has offsets for where the line numbers, local
188 strings, local symbols, and procedure table starts from within the
189 global tables, and the indexs are reset to 0 for each of those
192 The procedure table contains the binary equivalents of the .ent
193 (start of the function address), .frame (what register is the
194 virtual frame pointer, constant offset from the register to obtain
195 the VFP, and what register holds the return address), .mask/.fmask
196 (bitmask of saved registers, and where the first register is stored
197 relative to the VFP) assembler directives. It also contains the
198 low and high bounds of the line numbers if debugging is turned on.
200 The line number table is a compressed form of the normal COFF line
201 table. Each line number entry is either 1 or 3 bytes long, and
202 contains a signed delta from the previous line, and an unsigned
203 count of the number of instructions this statement takes.
205 The local symbol table contains the following fields:
207 1) iss: index to the local string table giving the name of the
210 2) value: value of the symbol (address, register number, etc.).
212 3) st: symbol type. The current symbol types are:
214 stNil -- Nuthin' special
215 stGlobal -- external symbol
217 stParam -- procedure argument
218 stLocal -- local variable
220 stProc -- External Procedure
221 stBlock -- beginning of block
222 stEnd -- end (of anything)
223 stMember -- member (of anything)
224 stTypedef -- type definition
226 stRegReloc -- register relocation
227 stForward -- forwarding address
228 stStaticProc -- Static procedure
231 4) sc: storage class. The current storage classes are:
233 scText -- text symbol
234 scData -- initialized data symbol
235 scBss -- un-initialized data symbol
236 scRegister -- value of symbol is register number
237 scAbs -- value of symbol is absolute
238 scUndefined -- who knows?
239 scCdbLocal -- variable's value is IN se->va.??
240 scBits -- this is a bit field
241 scCdbSystem -- value is IN debugger's address space
242 scRegImage -- register value saved on stack
243 scInfo -- symbol contains debugger information
244 scUserStruct -- addr in struct user for current process
245 scSData -- load time only small data
246 scSBss -- load time only small common
247 scRData -- load time only read only data
248 scVar -- Var parameter (fortranpascal)
249 scCommon -- common variable
250 scSCommon -- small common
251 scVarRegister -- Var parameter in a register
252 scVariant -- Variant record
253 scSUndefined -- small undefined(external) data
254 scInit -- .init section symbol
256 5) index: pointer to a local symbol or aux. entry.
260 For the following program:
265 printf("Hello World!\n");
269 Mips-tdump produces the following information:
274 timestamp 645311799, Wed Jun 13 17:16:39 1990
275 symbolic header offset 284
276 symbolic header size 96
280 Symbolic header, magic number = 0x7009, vstamp = 1.31:
282 Info Offset Number Bytes
283 ==== ====== ====== =====
285 Line numbers 380 4 4 [13]
287 Procedures Tables 384 1 52
288 Local Symbols 436 16 192
289 Optimization Symbols 0 0 0
290 Auxiliary Symbols 628 39 156
291 Local Strings 784 80 80
292 External Strings 864 144 144
293 File Tables 1008 2 144
295 External Symbols 1152 20 320
299 Name index = 1 Readin = No
300 Merge = No Endian = LITTLE
301 Debug level = G2 Language = C
304 Info Start Number Size Offset
305 ==== ===== ====== ==== ======
306 Local strings 0 15 15 784
307 Local symbols 0 6 72 436
308 Line numbers 0 13 13 380
309 Optimization symbols 0 0 0 0
310 Procedures 0 1 52 384
311 Auxiliary symbols 0 14 56 628
312 Relative Files 0 0 0 0
314 There are 6 local symbols, starting at 436
316 Symbol# 0: "hello2.c"
319 Storage class = Text Index = 6
320 Symbol type = File Value = 0
326 Storage class = Text Index = 12
327 Symbol type = Proc Value = 0
332 Storage class = Text Index = 4
333 Symbol type = Block Value = 8
338 Storage class = Text Index = 2
339 Symbol type = End Value = 28
344 Storage class = Text Index = 1
345 Symbol type = End Value = 52
347 Symbol# 5: "hello2.c"
350 Storage class = Text Index = 0
351 Symbol type = End Value = 0
353 There are 14 auxiliary table entries, starting at 628.
355 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
356 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
357 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
358 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
359 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
360 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
361 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
362 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
363 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
364 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
365 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
366 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
367 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
368 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
370 There are 1 procedure descriptor entries, starting at 0.
372 Procedure descriptor 0:
373 Name index = 10 Name = "main"
374 .mask 0x80000000,-4 .fmask 0x00000000,0
376 Opt. start = -1 Symbols start = 1
377 First line # = 3 Last line # = 6
378 Line Offset = 0 Address = 0x00000000
380 There are 4 bytes holding line numbers, starting at 380.
381 Line 3, delta 0, count 2
382 Line 4, delta 1, count 3
383 Line 5, delta 1, count 2
384 Line 6, delta 1, count 6
386 File #1, "/usr/include/stdio.h"
388 Name index = 1 Readin = No
389 Merge = Yes Endian = LITTLE
390 Debug level = G2 Language = C
393 Info Start Number Size Offset
394 ==== ===== ====== ==== ======
395 Local strings 15 65 65 799
396 Local symbols 6 10 120 508
397 Line numbers 0 0 0 380
398 Optimization symbols 0 0 0 0
400 Auxiliary symbols 14 25 100 684
401 Relative Files 0 0 0 0
403 There are 10 local symbols, starting at 442
405 Symbol# 0: "/usr/include/stdio.h"
408 Storage class = Text Index = 10
409 Symbol type = File Value = 0
414 Storage class = Info Index = 9
415 Symbol type = Block Value = 20
420 Storage class = Info Index = 4
421 Symbol type = Member Value = 0
426 Storage class = Info Index = 15
427 Symbol type = Member Value = 32
432 Storage class = Info Index = 16
433 Symbol type = Member Value = 64
438 Storage class = Info Index = 4
439 Symbol type = Member Value = 96
444 Storage class = Info Index = 3
445 Symbol type = Member Value = 128
450 Storage class = Info Index = 2
451 Symbol type = Member Value = 144
456 Storage class = Info Index = 1
457 Symbol type = End Value = 0
459 Symbol# 9: "/usr/include/stdio.h"
462 Storage class = Text Index = 0
463 Symbol type = End Value = 0
465 There are 25 auxiliary table entries, starting at 642.
467 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
468 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
470 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
471 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
472 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
473 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
474 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
475 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
476 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
477 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
478 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
493 There are 0 procedure descriptor entries, starting at 1.
495 There are 20 external symbols, starting at 1152
498 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
499 String index = 0 Ifd = 1
500 Storage class = Nil Index = 17
501 Symbol type = Global Value = 60
504 String index = 5 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
509 String index = 11 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
514 String index = 18 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
519 String index = 26 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
524 String index = 32 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
529 String index = 40 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
534 String index = 46 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
539 String index = 53 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
543 Symbol# 9: "setbuffer"
544 String index = 60 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
548 Symbol# 10: "setlinebuf"
549 String index = 70 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
554 String index = 81 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
559 String index = 87 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
563 Symbol# 13: "ctermid"
564 String index = 92 Ifd = 1
565 Storage class = Nil Index = 1048575
566 Symbol type = Proc Value = 0
568 Symbol# 14: "cuserid"
569 String index = 100 Ifd = 1
570 Storage class = Nil Index = 1048575
571 Symbol type = Proc Value = 0
573 Symbol# 15: "tempnam"
574 String index = 108 Ifd = 1
575 Storage class = Nil Index = 1048575
576 Symbol type = Proc Value = 0
579 String index = 116 Ifd = 1
580 Storage class = Nil Index = 1048575
581 Symbol type = Proc Value = 0
583 Symbol# 17: "sprintf"
584 String index = 123 Ifd = 1
585 Storage class = Nil Index = 1048575
586 Symbol type = Proc Value = 0
590 String index = 131 Ifd = 0
591 Storage class = Text Index = 1
592 Symbol type = Proc Value = 0
595 String index = 136 Ifd = 0
596 Storage class = Undefined Index = 1048575
597 Symbol type = Proc Value = 0
599 The following auxiliary table entries were unused:
603 #3 16 0x00000010 short
605 #5 32 0x00000020 long
606 #6 40 0x00000028 float
607 #7 44 0x0000002c double
608 #8 12 0x0000000c unsigned char
609 #9 20 0x00000014 unsigned short
610 #10 28 0x0000001c unsigned int
611 #11 36 0x00000024 unsigned long
612 #14 0 0x00000000 void
613 #15 24 0x00000018 int
614 #19 32 0x00000020 long
615 #20 40 0x00000028 float
616 #21 44 0x0000002c double
617 #22 12 0x0000000c unsigned char
618 #23 20 0x00000014 unsigned short
619 #24 28 0x0000001c unsigned int
620 #25 36 0x00000024 unsigned long
621 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
624 /* Redefinition of of storage classes as an enumeration for better
628 sc_Nil
= scNil
, /* no storage class */
629 sc_Text
= scText
, /* text symbol */
630 sc_Data
= scData
, /* initialized data symbol */
631 sc_Bss
= scBss
, /* un-initialized data symbol */
632 sc_Register
= scRegister
, /* value of symbol is register number */
633 sc_Abs
= scAbs
, /* value of symbol is absolute */
634 sc_Undefined
= scUndefined
, /* who knows? */
635 sc_CdbLocal
= scCdbLocal
, /* variable's value is IN se->va.?? */
636 sc_Bits
= scBits
, /* this is a bit field */
637 sc_CdbSystem
= scCdbSystem
, /* value is IN CDB's address space */
638 sc_RegImage
= scRegImage
, /* register value saved on stack */
639 sc_Info
= scInfo
, /* symbol contains debugger information */
640 sc_UserStruct
= scUserStruct
, /* addr in struct user for current process */
641 sc_SData
= scSData
, /* load time only small data */
642 sc_SBss
= scSBss
, /* load time only small common */
643 sc_RData
= scRData
, /* load time only read only data */
644 sc_Var
= scVar
, /* Var parameter (fortran,pascal) */
645 sc_Common
= scCommon
, /* common variable */
646 sc_SCommon
= scSCommon
, /* small common */
647 sc_VarRegister
= scVarRegister
, /* Var parameter in a register */
648 sc_Variant
= scVariant
, /* Variant record */
649 sc_SUndefined
= scSUndefined
, /* small undefined(external) data */
650 sc_Init
= scInit
, /* .init section symbol */
651 sc_Max
= scMax
/* Max storage class+1 */
654 /* Redefinition of symbol type. */
657 st_Nil
= stNil
, /* Nuthin' special */
658 st_Global
= stGlobal
, /* external symbol */
659 st_Static
= stStatic
, /* static */
660 st_Param
= stParam
, /* procedure argument */
661 st_Local
= stLocal
, /* local variable */
662 st_Label
= stLabel
, /* label */
663 st_Proc
= stProc
, /* " " Procedure */
664 st_Block
= stBlock
, /* beginning of block */
665 st_End
= stEnd
, /* end (of anything) */
666 st_Member
= stMember
, /* member (of anything - struct/union/enum */
667 st_Typedef
= stTypedef
, /* type definition */
668 st_File
= stFile
, /* file name */
669 st_RegReloc
= stRegReloc
, /* register relocation */
670 st_Forward
= stForward
, /* forwarding address */
671 st_StaticProc
= stStaticProc
, /* load time only static procs */
672 st_Constant
= stConstant
, /* const */
673 st_Str
= stStr
, /* string */
674 st_Number
= stNumber
, /* pure number (ie. 4 NOR 2+2) */
675 st_Expr
= stExpr
, /* 2+2 vs. 4 */
676 st_Type
= stType
, /* post-coercion SER */
677 st_Max
= stMax
/* max type+1 */
680 /* Redefinition of type qualifiers. */
683 tq_Nil
= tqNil
, /* bt is what you see */
684 tq_Ptr
= tqPtr
, /* pointer */
685 tq_Proc
= tqProc
, /* procedure */
686 tq_Array
= tqArray
, /* duh */
687 tq_Far
= tqFar
, /* longer addressing - 8086/8 land */
688 tq_Vol
= tqVol
, /* volatile */
689 tq_Max
= tqMax
/* Max type qualifier+1 */
692 /* Redefinition of basic types. */
695 bt_Nil
= btNil
, /* undefined */
696 bt_Adr
= btAdr
, /* address - integer same size as pointer */
697 bt_Char
= btChar
, /* character */
698 bt_UChar
= btUChar
, /* unsigned character */
699 bt_Short
= btShort
, /* short */
700 bt_UShort
= btUShort
, /* unsigned short */
701 bt_Int
= btInt
, /* int */
702 bt_UInt
= btUInt
, /* unsigned int */
703 bt_Long
= btLong
, /* long */
704 bt_ULong
= btULong
, /* unsigned long */
705 bt_Float
= btFloat
, /* float (real) */
706 bt_Double
= btDouble
, /* Double (real) */
707 bt_Struct
= btStruct
, /* Structure (Record) */
708 bt_Union
= btUnion
, /* Union (variant) */
709 bt_Enum
= btEnum
, /* Enumerated */
710 bt_Typedef
= btTypedef
, /* defined via a typedef, isymRef points */
711 bt_Range
= btRange
, /* subrange of int */
712 bt_Set
= btSet
, /* pascal sets */
713 bt_Complex
= btComplex
, /* fortran complex */
714 bt_DComplex
= btDComplex
, /* fortran double complex */
715 bt_Indirect
= btIndirect
, /* forward or unnamed typedef */
716 bt_FixedDec
= btFixedDec
, /* Fixed Decimal */
717 bt_FloatDec
= btFloatDec
, /* Float Decimal */
718 bt_String
= btString
, /* Varying Length Character String */
719 bt_Bit
= btBit
, /* Aligned Bit String */
720 bt_Picture
= btPicture
, /* Picture */
721 bt_Void
= btVoid
, /* Void */
722 bt_Max
= btMax
/* Max basic type+1 */
727 /* States for whether to hash type or not. */
728 typedef enum hash_state
{
729 hash_no
= 0, /* don't hash type */
730 hash_yes
= 1, /* ok to hash type, or use previous hash */
731 hash_record
= 2 /* ok to record hash, but don't use prev. */
734 /* Types of different sized allocation requests. */
736 alloc_type_none
, /* dummy value */
737 alloc_type_scope
, /* nested scopes linked list */
738 alloc_type_vlinks
, /* glue linking pages in varray */
739 alloc_type_shash
, /* string hash element */
740 alloc_type_thash
, /* type hash element */
741 alloc_type_tag
, /* struct/union/tag element */
742 alloc_type_forward
, /* element to hold unknown tag */
743 alloc_type_thead
, /* head of type hash list */
744 alloc_type_varray
, /* general varray allocation */
745 alloc_type_lineno
, /* line number list */
746 alloc_type_last
/* last+1 element for array bounds */
749 /* Types of auxiliary type information. */
751 aux_tir
, /* TIR type information */
752 aux_rndx
, /* relative index into symbol table */
753 aux_dnLow
, /* low dimension */
754 aux_dnHigh
, /* high dimension */
755 aux_isym
, /* symbol table index (end of proc) */
756 aux_iss
, /* index into string space (not used) */
757 aux_width
, /* width for non-default sized struc fields */
758 aux_count
/* count of ranges for variant arm */
761 /* Structures to provide n-number of virtual arrays, each of which can
762 grow linearly, and which are written in the object file as
763 sequential pages. On systems with a BSD malloc, the
764 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
765 malloc adds it's overhead, and rounds up to the next power of 2.
766 Pages are linked together via a linked list.
768 If PAGE_SIZE is > 4096, the string length in the shash_t structure
769 can't be represented (assuming there are strings > 4096 bytes). */
772 #define PAGE_SIZE 4096 /* size of varray pages */
775 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
778 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
779 #define MAX_CLUSTER_PAGES 63
782 /* Linked list connecting separate page allocations. */
783 typedef struct vlinks
{
784 struct vlinks
*prev
; /* previous set of pages */
785 struct vlinks
*next
; /* next set of pages */
786 union page
*datum
; /* start of page */
787 unsigned long start_index
; /* starting index # of page */
791 /* Virtual array header. */
792 typedef struct varray
{
793 vlinks_t
*first
; /* first page link */
794 vlinks_t
*last
; /* last page link */
795 unsigned long num_allocated
; /* # objects allocated */
796 unsigned short object_size
; /* size in bytes of each object */
797 unsigned short objects_per_page
; /* # objects that can fit on a page */
798 unsigned short objects_last_page
; /* # objects allocated on last page */
802 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
804 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
807 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
808 (vlinks_t *)0, /* first */ \
809 (vlinks_t *)0, /* last */ \
810 0, /* num_allocated */ \
811 sizeof (type), /* object_size */ \
812 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
813 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
817 /* Master type for indexes within the symbol table. */
818 typedef unsigned long symint_t
;
821 /* Linked list support for nested scopes (file, block, structure, etc.). */
822 typedef struct scope
{
823 struct scope
*prev
; /* previous scope level */
824 struct scope
*free
; /* free list pointer */
825 struct localsym
*lsym
; /* pointer to local symbol node */
826 st_t type
; /* type of the node */
830 /* For a local symbol we store a gas symbol as well as the debugging
831 information we generate. The gas symbol will be NULL if this is
832 only a debugging symbol. */
833 typedef struct localsym
{
834 const char *name
; /* symbol name */
835 symbolS
*as_sym
; /* symbol as seen by gas */
836 bfd_vma addend
; /* addend to as_sym value */
837 struct efdr
*file_ptr
; /* file pointer */
838 struct ecoff_proc
*proc_ptr
; /* proc pointer */
839 struct localsym
*begin_ptr
; /* symbol at start of block */
840 struct ecoff_aux
*index_ptr
; /* index value to be filled in */
841 struct forward
*forward_ref
; /* forward references to this symbol */
842 long sym_index
; /* final symbol index */
843 EXTR ecoff_sym
; /* ECOFF debugging symbol */
847 /* For aux information we keep the type and the data. */
848 typedef struct ecoff_aux
{
849 enum aux_type type
; /* aux type */
850 AUXU data
; /* aux data */
853 /* For a procedure we store the gas symbol as well as the PDR
854 debugging information. */
855 typedef struct ecoff_proc
{
856 localsym_t
*sym
; /* associated symbol */
857 PDR pdr
; /* ECOFF debugging info */
860 /* Number of proc_t structures allocated. */
861 static unsigned long proc_cnt
;
864 /* Forward reference list for tags referenced, but not yet defined. */
865 typedef struct forward
{
866 struct forward
*next
; /* next forward reference */
867 struct forward
*free
; /* free list pointer */
868 aux_t
*ifd_ptr
; /* pointer to store file index */
869 aux_t
*index_ptr
; /* pointer to store symbol index */
873 /* Linked list support for tags. The first tag in the list is always
874 the current tag for that block. */
876 struct tag
*free
; /* free list pointer */
877 struct shash
*hash_ptr
; /* pointer to the hash table head */
878 struct tag
*same_name
; /* tag with same name in outer scope */
879 struct tag
*same_block
; /* next tag defined in the same block. */
880 struct forward
*forward_ref
; /* list of forward references */
881 bt_t basic_type
; /* bt_Struct, bt_Union, or bt_Enum */
882 symint_t ifd
; /* file # tag defined in */
883 localsym_t
*sym
; /* file's local symbols */
887 /* Head of a block's linked list of tags. */
888 typedef struct thead
{
889 struct thead
*prev
; /* previous block */
890 struct thead
*free
; /* free list pointer */
891 struct tag
*first_tag
; /* first tag in block defined */
895 /* Union containing pointers to each the small structures which are freed up. */
896 typedef union small_free
{
897 scope_t
*f_scope
; /* scope structure */
898 thead_t
*f_thead
; /* tag head structure */
899 tag_t
*f_tag
; /* tag element structure */
900 forward_t
*f_forward
; /* forward tag reference */
904 /* String hash table entry. */
906 typedef struct shash
{
907 char *string
; /* string we are hashing */
908 symint_t indx
; /* index within string table */
909 EXTR
*esym_ptr
; /* global symbol pointer */
910 localsym_t
*sym_ptr
; /* local symbol pointer */
911 localsym_t
*end_ptr
; /* symbol pointer to end block */
912 tag_t
*tag_ptr
; /* tag pointer */
913 proc_t
*proc_ptr
; /* procedure descriptor pointer */
917 /* Type hash table support. The size of the hash table must fit
918 within a page with the other extended file descriptor information.
919 Because unique types which are hashed are fewer in number than
920 strings, we use a smaller hash value. */
925 #define THASH_SIZE 113
928 typedef struct thash
{
929 struct thash
*next
; /* next hash value */
930 AUXU type
; /* type we are hashing */
931 symint_t indx
; /* index within string table */
935 /* Extended file descriptor that contains all of the support necessary
936 to add things to each file separately. */
937 typedef struct efdr
{
938 FDR fdr
; /* File header to be written out */
939 FDR
*orig_fdr
; /* original file header */
940 char *name
; /* filename */
941 int fake
; /* whether this is faked .file */
942 symint_t void_type
; /* aux. pointer to 'void' type */
943 symint_t int_type
; /* aux. pointer to 'int' type */
944 scope_t
*cur_scope
; /* current nested scopes */
945 symint_t file_index
; /* current file number */
946 int nested_scopes
; /* # nested scopes */
947 varray_t strings
; /* local strings */
948 varray_t symbols
; /* local symbols */
949 varray_t procs
; /* procedures */
950 varray_t aux_syms
; /* auxiliary symbols */
951 struct efdr
*next_file
; /* next file descriptor */
952 /* string/type hash tables */
953 struct hash_control
*str_hash
; /* string hash table */
954 thash_t
*thash_head
[THASH_SIZE
];
957 /* Pre-initialized extended file structure. */
958 static const efdr_t init_file
=
960 { /* FDR structure */
961 0, /* adr: memory address of beginning of file */
962 0, /* rss: file name (of source, if known) */
963 0, /* issBase: file's string space */
964 0, /* cbSs: number of bytes in the ss */
965 0, /* isymBase: beginning of symbols */
966 0, /* csym: count file's of symbols */
967 0, /* ilineBase: file's line symbols */
968 0, /* cline: count of file's line symbols */
969 0, /* ioptBase: file's optimization entries */
970 0, /* copt: count of file's optimization entries */
971 0, /* ipdFirst: start of procedures for this file */
972 0, /* cpd: count of procedures for this file */
973 0, /* iauxBase: file's auxiliary entries */
974 0, /* caux: count of file's auxiliary entries */
975 0, /* rfdBase: index into the file indirect table */
976 0, /* crfd: count file indirect entries */
977 langC
, /* lang: language for this file */
978 1, /* fMerge: whether this file can be merged */
979 0, /* fReadin: true if read in (not just created) */
980 TARGET_BYTES_BIG_ENDIAN
, /* fBigendian: if 1, compiled on big endian machine */
981 GLEVEL_2
, /* glevel: level this file was compiled with */
982 0, /* reserved: reserved for future use */
983 0, /* cbLineOffset: byte offset from header for this file ln's */
984 0, /* cbLine: size of lines for this file */
987 (FDR
*)0, /* orig_fdr: original file header pointer */
988 (char *)0, /* name: pointer to filename */
989 0, /* fake: whether this is a faked .file */
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
;
1024 static lineno_list_t
**last_lineno_ptr
= &first_lineno
;
1026 /* Sometimes there will be some .loc statements before a .ent. We
1027 keep them in this list so that we can fill in the procedure pointer
1028 after we see the .ent. */
1029 static lineno_list_t
*noproc_lineno
;
1031 /* Union of various things that are held in pages. */
1032 typedef union page
{
1033 char byte
[ PAGE_SIZE
];
1034 unsigned char ubyte
[ PAGE_SIZE
];
1035 efdr_t file
[ PAGE_SIZE
/ sizeof (efdr_t
) ];
1036 FDR ofile
[ PAGE_SIZE
/ sizeof (FDR
) ];
1037 proc_t proc
[ PAGE_SIZE
/ sizeof (proc_t
) ];
1038 localsym_t sym
[ PAGE_SIZE
/ sizeof (localsym_t
) ];
1039 aux_t aux
[ PAGE_SIZE
/ sizeof (aux_t
) ];
1040 DNR dense
[ PAGE_SIZE
/ sizeof (DNR
) ];
1041 scope_t scope
[ PAGE_SIZE
/ sizeof (scope_t
) ];
1042 vlinks_t vlinks
[ PAGE_SIZE
/ sizeof (vlinks_t
) ];
1043 shash_t shash
[ PAGE_SIZE
/ sizeof (shash_t
) ];
1044 thash_t thash
[ PAGE_SIZE
/ sizeof (thash_t
) ];
1045 tag_t tag
[ PAGE_SIZE
/ sizeof (tag_t
) ];
1046 forward_t forward
[ PAGE_SIZE
/ sizeof (forward_t
) ];
1047 thead_t thead
[ PAGE_SIZE
/ sizeof (thead_t
) ];
1048 lineno_list_t lineno
[ PAGE_SIZE
/ sizeof (lineno_list_t
) ];
1052 /* Structure holding allocation information for small sized structures. */
1053 typedef struct alloc_info
{
1054 char *alloc_name
; /* name of this allocation type (must be first) */
1055 page_type
*cur_page
; /* current page being allocated from */
1056 small_free_t free_list
; /* current free list if any */
1057 int unallocated
; /* number of elements unallocated on page */
1058 int total_alloc
; /* total number of allocations */
1059 int total_free
; /* total number of frees */
1060 int total_pages
; /* total number of pages allocated */
1064 /* Type information collected together. */
1065 typedef struct type_info
{
1066 bt_t basic_type
; /* basic type */
1067 int orig_type
; /* original COFF-based type */
1068 int num_tq
; /* # type qualifiers */
1069 int num_dims
; /* # dimensions */
1070 int num_sizes
; /* # sizes */
1071 int extra_sizes
; /* # extra sizes not tied with dims */
1072 tag_t
* tag_ptr
; /* tag pointer */
1073 int bitfield
; /* symbol is a bitfield */
1074 tq_t type_qualifiers
[N_TQ
]; /* type qualifiers (ptr, func, array)*/
1075 symint_t dimensions
[N_TQ
]; /* dimensions for each array */
1076 symint_t sizes
[N_TQ
+2]; /* sizes of each array slice + size of
1077 struct/union/enum + bitfield size */
1080 /* Pre-initialized type_info struct. */
1081 static const type_info_t type_info_init
= {
1082 bt_Nil
, /* basic type */
1083 T_NULL
, /* original COFF-based type */
1084 0, /* # type qualifiers */
1085 0, /* # dimensions */
1087 0, /* sizes not tied with dims */
1088 NULL
, /* ptr to tag */
1090 { /* type qualifiers */
1118 /* Global hash table for the tags table and global table for file
1121 static varray_t file_desc
= INIT_VARRAY (efdr_t
);
1123 static struct hash_control
*tag_hash
;
1125 /* Static types for int and void. Also, remember the last function's
1126 type (which is set up when we encounter the declaration for the
1127 function, and used when the end block for the function is emitted. */
1129 static type_info_t int_type_info
;
1130 static type_info_t void_type_info
;
1131 static type_info_t last_func_type_info
;
1132 static symbolS
*last_func_sym_value
;
1135 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1136 really should use bt_Void, but this causes the current ecoff GDB to
1137 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1138 2.0) doesn't understand it, even though the compiler generates it.
1139 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1140 suite, but for now go with what works.
1142 It would make sense for the .type and .scl directives to use the
1143 ECOFF numbers directly, rather than using the COFF numbers and
1144 mapping them. Unfortunately, this is historically what mips-tfile
1145 expects, and changing gcc now would be a considerable pain (the
1146 native compiler generates debugging information internally, rather
1147 than via the assembler, so it will never use .type or .scl). */
1149 static const bt_t map_coff_types
[] = {
1150 bt_Nil
, /* T_NULL */
1152 bt_Char
, /* T_CHAR */
1153 bt_Short
, /* T_SHORT */
1155 bt_Long
, /* T_LONG */
1156 bt_Float
, /* T_FLOAT */
1157 bt_Double
, /* T_DOUBLE */
1158 bt_Struct
, /* T_STRUCT */
1159 bt_Union
, /* T_UNION */
1160 bt_Enum
, /* T_ENUM */
1161 bt_Enum
, /* T_MOE */
1162 bt_UChar
, /* T_UCHAR */
1163 bt_UShort
, /* T_USHORT */
1164 bt_UInt
, /* T_UINT */
1165 bt_ULong
/* T_ULONG */
1168 /* Convert COFF storage class to ECOFF storage class. */
1169 static const sc_t map_coff_storage
[] = {
1170 sc_Nil
, /* 0: C_NULL */
1171 sc_Abs
, /* 1: C_AUTO auto var */
1172 sc_Undefined
, /* 2: C_EXT external */
1173 sc_Data
, /* 3: C_STAT static */
1174 sc_Register
, /* 4: C_REG register */
1175 sc_Undefined
, /* 5: C_EXTDEF ??? */
1176 sc_Text
, /* 6: C_LABEL label */
1177 sc_Text
, /* 7: C_ULABEL user label */
1178 sc_Info
, /* 8: C_MOS member of struct */
1179 sc_Abs
, /* 9: C_ARG argument */
1180 sc_Info
, /* 10: C_STRTAG struct tag */
1181 sc_Info
, /* 11: C_MOU member of union */
1182 sc_Info
, /* 12: C_UNTAG union tag */
1183 sc_Info
, /* 13: C_TPDEF typedef */
1184 sc_Data
, /* 14: C_USTATIC ??? */
1185 sc_Info
, /* 15: C_ENTAG enum tag */
1186 sc_Info
, /* 16: C_MOE member of enum */
1187 sc_Register
, /* 17: C_REGPARM register parameter */
1188 sc_Bits
, /* 18; C_FIELD bitfield */
1270 sc_Text
, /* 100: C_BLOCK block start/end */
1271 sc_Text
, /* 101: C_FCN function start/end */
1272 sc_Info
, /* 102: C_EOS end of struct/union/enum */
1273 sc_Nil
, /* 103: C_FILE file start */
1274 sc_Nil
, /* 104: C_LINE line number */
1275 sc_Nil
, /* 105: C_ALIAS combined type info */
1276 sc_Nil
, /* 106: C_HIDDEN ??? */
1279 /* Convert COFF storage class to ECOFF symbol type. */
1280 static const st_t map_coff_sym_type
[] = {
1281 st_Nil
, /* 0: C_NULL */
1282 st_Local
, /* 1: C_AUTO auto var */
1283 st_Global
, /* 2: C_EXT external */
1284 st_Static
, /* 3: C_STAT static */
1285 st_Local
, /* 4: C_REG register */
1286 st_Global
, /* 5: C_EXTDEF ??? */
1287 st_Label
, /* 6: C_LABEL label */
1288 st_Label
, /* 7: C_ULABEL user label */
1289 st_Member
, /* 8: C_MOS member of struct */
1290 st_Param
, /* 9: C_ARG argument */
1291 st_Block
, /* 10: C_STRTAG struct tag */
1292 st_Member
, /* 11: C_MOU member of union */
1293 st_Block
, /* 12: C_UNTAG union tag */
1294 st_Typedef
, /* 13: C_TPDEF typedef */
1295 st_Static
, /* 14: C_USTATIC ??? */
1296 st_Block
, /* 15: C_ENTAG enum tag */
1297 st_Member
, /* 16: C_MOE member of enum */
1298 st_Param
, /* 17: C_REGPARM register parameter */
1299 st_Member
, /* 18; C_FIELD bitfield */
1381 st_Block
, /* 100: C_BLOCK block start/end */
1382 st_Proc
, /* 101: C_FCN function start/end */
1383 st_End
, /* 102: C_EOS end of struct/union/enum */
1384 st_File
, /* 103: C_FILE file start */
1385 st_Nil
, /* 104: C_LINE line number */
1386 st_Nil
, /* 105: C_ALIAS combined type info */
1387 st_Nil
, /* 106: C_HIDDEN ??? */
1391 /* Keep track of different sized allocation requests. */
1392 static alloc_info_t alloc_counts
[ (int)alloc_type_last
];
1394 /* Record whether we have seen any debugging information. */
1395 int ecoff_debugging_seen
= 0;
1397 /* Various statics. */
1398 static efdr_t
*cur_file_ptr
= (efdr_t
*) 0; /* current file desc. header */
1399 static proc_t
*cur_proc_ptr
= (proc_t
*) 0; /* current procedure header */
1400 static proc_t
*first_proc_ptr
= (proc_t
*) 0; /* first procedure header */
1401 static thead_t
*top_tag_head
= (thead_t
*) 0; /* top level tag head */
1402 static thead_t
*cur_tag_head
= (thead_t
*) 0; /* current tag head */
1404 static int debug
= 0; /* trace functions */
1406 static int stabs_seen
= 0; /* != 0 if stabs have been seen */
1408 static int current_file_idx
;
1409 static const char *current_stabs_filename
;
1411 /* Pseudo symbol to use when putting stabs into the symbol table. */
1412 #ifndef STABS_SYMBOL
1413 #define STABS_SYMBOL "@stabs"
1416 static char stabs_symbol
[] = STABS_SYMBOL
;
1418 /* Prototypes for functions defined in this file. */
1420 static void add_varray_page
PARAMS ((varray_t
*vp
));
1421 static symint_t add_string
PARAMS ((varray_t
*vp
,
1422 struct hash_control
*hash_tbl
,
1424 shash_t
**ret_hash
));
1425 static localsym_t
*add_ecoff_symbol
PARAMS ((const char *str
, st_t type
,
1426 sc_t storage
, symbolS
*sym
,
1427 bfd_vma addend
, symint_t value
,
1429 static symint_t add_aux_sym_symint
PARAMS ((symint_t aux_word
));
1430 static symint_t add_aux_sym_rndx
PARAMS ((int file_index
,
1431 symint_t sym_index
));
1432 static symint_t add_aux_sym_tir
PARAMS ((type_info_t
*t
,
1434 thash_t
**hash_tbl
));
1435 static tag_t
*get_tag
PARAMS ((const char *tag
, localsym_t
*sym
,
1437 static void add_unknown_tag
PARAMS ((tag_t
*ptag
));
1438 static void add_procedure
PARAMS ((char *func
));
1439 static void add_file
PARAMS ((const char *file_name
, int indx
, int fake
));
1441 static char *sc_to_string
PARAMS ((sc_t storage_class
));
1442 static char *st_to_string
PARAMS ((st_t symbol_type
));
1444 static void mark_stabs
PARAMS ((int));
1445 static char *ecoff_add_bytes
PARAMS ((char **buf
, char **bufend
,
1446 char *bufptr
, unsigned long need
));
1447 static unsigned long ecoff_padding_adjust
1448 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1449 unsigned long offset
, char **bufptrptr
));
1450 static unsigned long ecoff_build_lineno
1451 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1452 unsigned long offset
, long *linecntptr
));
1453 static unsigned long ecoff_build_symbols
1454 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1455 unsigned long offset
));
1456 static unsigned long ecoff_build_procs
1457 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1458 unsigned long offset
));
1459 static unsigned long ecoff_build_aux
1460 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1461 unsigned long offset
));
1462 static unsigned long ecoff_build_strings
PARAMS ((char **buf
, char **bufend
,
1463 unsigned long offset
,
1465 static unsigned long ecoff_build_ss
1466 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1467 unsigned long offset
));
1468 static unsigned long ecoff_build_fdr
1469 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1470 unsigned long offset
));
1471 static void ecoff_setup_ext
PARAMS ((void));
1472 static page_type
*allocate_cluster
PARAMS ((unsigned long npages
));
1473 static page_type
*allocate_page
PARAMS ((void));
1474 static scope_t
*allocate_scope
PARAMS ((void));
1475 static void free_scope
PARAMS ((scope_t
*ptr
));
1476 static vlinks_t
*allocate_vlinks
PARAMS ((void));
1477 static shash_t
*allocate_shash
PARAMS ((void));
1478 static thash_t
*allocate_thash
PARAMS ((void));
1479 static tag_t
*allocate_tag
PARAMS ((void));
1480 static void free_tag
PARAMS ((tag_t
*ptr
));
1481 static forward_t
*allocate_forward
PARAMS ((void));
1482 static thead_t
*allocate_thead
PARAMS ((void));
1483 static void free_thead
PARAMS ((thead_t
*ptr
));
1484 static lineno_list_t
*allocate_lineno_list
PARAMS ((void));
1485 static void generate_ecoff_stab
PARAMS ((int, const char *, int, int, int));
1487 /* This function should be called when the assembler starts up. */
1490 ecoff_read_begin_hook ()
1492 tag_hash
= hash_new ();
1493 top_tag_head
= allocate_thead ();
1494 top_tag_head
->first_tag
= (tag_t
*) NULL
;
1495 top_tag_head
->free
= (thead_t
*) NULL
;
1496 top_tag_head
->prev
= cur_tag_head
;
1497 cur_tag_head
= top_tag_head
;
1500 /* This function should be called when a symbol is created. */
1503 ecoff_symbol_new_hook (symbolP
)
1506 /* Make sure that we have a file pointer, but only if we have seen a
1507 file. If we haven't seen a file, then this is a probably special
1508 symbol created by md_begin which may required special handling at
1509 some point. Creating a dummy file with a dummy name is certainly
1511 if (cur_file_ptr
== (efdr_t
*) NULL
1512 && seen_at_least_1_file ())
1513 add_file ((const char *) NULL
, 0, 1);
1514 symbolP
->ecoff_file
= cur_file_ptr
;
1515 symbolP
->ecoff_symbol
= NULL
;
1516 symbolP
->ecoff_extern_size
= 0;
1519 /* Add a page to a varray object. */
1522 add_varray_page (vp
)
1523 varray_t
*vp
; /* varray to add page to */
1525 vlinks_t
*new_links
= allocate_vlinks ();
1528 if (vp
->object_size
> 1)
1529 new_links
->datum
= (page_type
*) xcalloc (1, vp
->object_size
);
1532 new_links
->datum
= allocate_page ();
1534 alloc_counts
[(int)alloc_type_varray
].total_alloc
++;
1535 alloc_counts
[(int)alloc_type_varray
].total_pages
++;
1537 new_links
->start_index
= vp
->num_allocated
;
1538 vp
->objects_last_page
= 0;
1540 if (vp
->first
== (vlinks_t
*) NULL
) /* first allocation? */
1541 vp
->first
= vp
->last
= new_links
;
1543 { /* 2nd or greater allocation */
1544 new_links
->prev
= vp
->last
;
1545 vp
->last
->next
= new_links
;
1546 vp
->last
= new_links
;
1550 /* Add a string (and null pad) to one of the string tables. */
1553 add_string (vp
, hash_tbl
, str
, ret_hash
)
1554 varray_t
*vp
; /* string obstack */
1555 struct hash_control
*hash_tbl
; /* ptr to hash table */
1556 const char *str
; /* string */
1557 shash_t
**ret_hash
; /* return hash pointer */
1559 register unsigned long len
= strlen (str
);
1560 register shash_t
*hash_ptr
;
1562 if (len
>= PAGE_USIZE
)
1563 as_fatal ("String too big (%lu bytes)", len
);
1565 hash_ptr
= (shash_t
*) hash_find (hash_tbl
, str
);
1566 if (hash_ptr
== (shash_t
*) NULL
)
1568 register const char *err
;
1570 if (vp
->objects_last_page
+ len
>= PAGE_USIZE
)
1573 ((vp
->num_allocated
+ PAGE_USIZE
- 1) / PAGE_USIZE
) * PAGE_USIZE
;
1574 add_varray_page (vp
);
1577 hash_ptr
= allocate_shash ();
1578 hash_ptr
->indx
= vp
->num_allocated
;
1580 hash_ptr
->string
= &vp
->last
->datum
->byte
[vp
->objects_last_page
];
1582 vp
->objects_last_page
+= len
+ 1;
1583 vp
->num_allocated
+= len
+ 1;
1585 strcpy (hash_ptr
->string
, str
);
1587 err
= hash_insert (hash_tbl
, str
, (char *) hash_ptr
);
1589 as_fatal ("Inserting \"%s\" into string hash table: %s",
1593 if (ret_hash
!= (shash_t
**) NULL
)
1594 *ret_hash
= hash_ptr
;
1596 return hash_ptr
->indx
;
1599 /* Add debugging information for a symbol. */
1602 add_ecoff_symbol (str
, type
, storage
, sym_value
, addend
, value
, indx
)
1603 const char *str
; /* symbol name */
1604 st_t type
; /* symbol type */
1605 sc_t storage
; /* storage class */
1606 symbolS
*sym_value
; /* associated symbol. */
1607 bfd_vma addend
; /* addend to sym_value. */
1608 symint_t value
; /* value of symbol */
1609 symint_t indx
; /* index to local/aux. syms */
1612 register scope_t
*pscope
;
1613 register thead_t
*ptag_head
;
1614 register tag_t
*ptag
;
1615 register tag_t
*ptag_next
;
1616 register varray_t
*vp
;
1617 register int scope_delta
= 0;
1618 shash_t
*hash_ptr
= (shash_t
*) NULL
;
1620 if (cur_file_ptr
== (efdr_t
*) NULL
)
1621 as_fatal ("no current file pointer");
1623 vp
= &cur_file_ptr
->symbols
;
1625 if (vp
->objects_last_page
== vp
->objects_per_page
)
1626 add_varray_page (vp
);
1628 psym
= &vp
->last
->datum
->sym
[ vp
->objects_last_page
++ ];
1630 if (str
== (const char *) NULL
&& sym_value
!= (symbolS
*) NULL
)
1631 psym
->name
= S_GET_NAME (sym_value
);
1634 psym
->as_sym
= sym_value
;
1635 if (sym_value
!= (symbolS
*) NULL
)
1636 sym_value
->ecoff_symbol
= psym
;
1637 psym
->addend
= addend
;
1638 psym
->file_ptr
= cur_file_ptr
;
1639 psym
->proc_ptr
= cur_proc_ptr
;
1640 psym
->begin_ptr
= (localsym_t
*) NULL
;
1641 psym
->index_ptr
= (aux_t
*) NULL
;
1642 psym
->forward_ref
= (forward_t
*) NULL
;
1643 psym
->sym_index
= -1;
1644 memset (&psym
->ecoff_sym
, 0, sizeof (EXTR
));
1645 psym
->ecoff_sym
.asym
.value
= value
;
1646 psym
->ecoff_sym
.asym
.st
= (unsigned) type
;
1647 psym
->ecoff_sym
.asym
.sc
= (unsigned) storage
;
1648 psym
->ecoff_sym
.asym
.index
= indx
;
1650 /* If there is an associated symbol, we wait until the end of the
1651 assembly before deciding where to put the name (it may be just an
1652 external symbol). Otherwise, this is just a debugging symbol and
1653 the name should go with the current file. */
1654 if (sym_value
== (symbolS
*) NULL
)
1655 psym
->ecoff_sym
.asym
.iss
= ((str
== (const char *) NULL
)
1657 : add_string (&cur_file_ptr
->strings
,
1658 cur_file_ptr
->str_hash
,
1662 ++vp
->num_allocated
;
1664 if (ECOFF_IS_STAB (&psym
->ecoff_sym
.asym
))
1667 /* Save the symbol within the hash table if this is a static
1668 item, and it has a name. */
1669 if (hash_ptr
!= (shash_t
*) NULL
1670 && (type
== st_Global
|| type
== st_Static
|| type
== st_Label
1671 || type
== st_Proc
|| type
== st_StaticProc
))
1672 hash_ptr
->sym_ptr
= psym
;
1674 /* push or pop a scope if appropriate. */
1680 case st_File
: /* beginning of file */
1681 case st_Proc
: /* procedure */
1682 case st_StaticProc
: /* static procedure */
1683 case st_Block
: /* begin scope */
1684 pscope
= allocate_scope ();
1685 pscope
->prev
= cur_file_ptr
->cur_scope
;
1686 pscope
->lsym
= psym
;
1687 pscope
->type
= type
;
1688 cur_file_ptr
->cur_scope
= pscope
;
1690 if (type
!= st_File
)
1693 /* For every block type except file, struct, union, or
1694 enumeration blocks, push a level on the tag stack. We omit
1695 file types, so that tags can span file boundaries. */
1696 if (type
!= st_File
&& storage
!= sc_Info
)
1698 ptag_head
= allocate_thead ();
1699 ptag_head
->first_tag
= 0;
1700 ptag_head
->prev
= cur_tag_head
;
1701 cur_tag_head
= ptag_head
;
1706 pscope
= cur_file_ptr
->cur_scope
;
1707 if (pscope
== (scope_t
*) NULL
)
1708 as_fatal ("too many st_End's");
1711 st_t begin_type
= (st_t
) pscope
->lsym
->ecoff_sym
.asym
.st
;
1713 psym
->begin_ptr
= pscope
->lsym
;
1715 if (begin_type
!= st_File
)
1718 /* Except for file, structure, union, or enumeration end
1719 blocks remove all tags created within this scope. */
1720 if (begin_type
!= st_File
&& storage
!= sc_Info
)
1722 ptag_head
= cur_tag_head
;
1723 cur_tag_head
= ptag_head
->prev
;
1725 for (ptag
= ptag_head
->first_tag
;
1726 ptag
!= (tag_t
*) NULL
;
1729 if (ptag
->forward_ref
!= (forward_t
*) NULL
)
1730 add_unknown_tag (ptag
);
1732 ptag_next
= ptag
->same_block
;
1733 ptag
->hash_ptr
->tag_ptr
= ptag
->same_name
;
1737 free_thead (ptag_head
);
1740 cur_file_ptr
->cur_scope
= pscope
->prev
;
1742 /* block begin gets next sym #. This is set when we know
1743 the symbol index value. */
1745 /* Functions push two or more aux words as follows:
1746 1st word: index+1 of the end symbol (filled in later).
1747 2nd word: type of the function (plus any aux words needed).
1748 Also, tie the external pointer back to the function begin symbol. */
1749 if (begin_type
!= st_File
&& begin_type
!= st_Block
)
1752 varray_t
*svp
= &cur_file_ptr
->aux_syms
;
1754 pscope
->lsym
->ecoff_sym
.asym
.index
= add_aux_sym_symint (0);
1755 pscope
->lsym
->index_ptr
=
1756 &svp
->last
->datum
->aux
[svp
->objects_last_page
- 1];
1757 ty
= add_aux_sym_tir (&last_func_type_info
,
1759 &cur_file_ptr
->thash_head
[0]);
1761 /* This seems to be unnecessary. I'm not even sure what it is
1762 * intended to do. It's from mips-tfile.
1763 * if (last_func_sym_value != (symbolS *) NULL)
1765 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1766 * last_func_sym_value->index = ty;
1771 free_scope (pscope
);
1775 cur_file_ptr
->nested_scopes
+= scope_delta
;
1778 if (debug
&& type
!= st_File
1779 && (debug
> 2 || type
== st_Block
|| type
== st_End
1780 || type
== st_Proc
|| type
== st_StaticProc
))
1782 char *sc_str
= sc_to_string (storage
);
1783 char *st_str
= st_to_string (type
);
1784 int depth
= cur_file_ptr
->nested_scopes
+ (scope_delta
< 0);
1787 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1788 value
, depth
, sc_str
);
1790 if (str_start
&& str_end_p1
- str_start
> 0)
1791 fprintf (stderr
, " st= %-11s name= %.*s\n", st_str
, str_end_p1
- str_start
, str_start
);
1794 unsigned long len
= strlen (st_str
);
1795 fprintf (stderr
, " st= %.*s\n", len
-1, st_str
);
1803 /* Add an auxiliary symbol (passing a symint). This is actually used
1804 for integral aux types, not just symints. */
1807 add_aux_sym_symint (aux_word
)
1808 symint_t aux_word
; /* auxiliary information word */
1810 register varray_t
*vp
;
1811 register aux_t
*aux_ptr
;
1813 if (cur_file_ptr
== (efdr_t
*) NULL
)
1814 as_fatal ("no current file pointer");
1816 vp
= &cur_file_ptr
->aux_syms
;
1818 if (vp
->objects_last_page
== vp
->objects_per_page
)
1819 add_varray_page (vp
);
1821 aux_ptr
= &vp
->last
->datum
->aux
[vp
->objects_last_page
++];
1822 aux_ptr
->type
= aux_isym
;
1823 aux_ptr
->data
.isym
= aux_word
;
1825 return vp
->num_allocated
++;
1829 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1832 add_aux_sym_rndx (file_index
, sym_index
)
1836 register varray_t
*vp
;
1837 register aux_t
*aux_ptr
;
1839 if (cur_file_ptr
== (efdr_t
*) NULL
)
1840 as_fatal ("no current file pointer");
1842 vp
= &cur_file_ptr
->aux_syms
;
1844 if (vp
->objects_last_page
== vp
->objects_per_page
)
1845 add_varray_page (vp
);
1847 aux_ptr
= &vp
->last
->datum
->aux
[vp
->objects_last_page
++];
1848 aux_ptr
->type
= aux_rndx
;
1849 aux_ptr
->data
.rndx
.rfd
= file_index
;
1850 aux_ptr
->data
.rndx
.index
= sym_index
;
1852 return vp
->num_allocated
++;
1855 /* Add an auxiliary symbol (passing the basic type and possibly
1856 type qualifiers). */
1859 add_aux_sym_tir (t
, state
, hash_tbl
)
1860 type_info_t
*t
; /* current type information */
1861 hash_state_t state
; /* whether to hash type or not */
1862 thash_t
**hash_tbl
; /* pointer to hash table to use */
1864 register varray_t
*vp
;
1865 register aux_t
*aux_ptr
;
1866 static AUXU init_aux
;
1871 if (cur_file_ptr
== (efdr_t
*) NULL
)
1872 as_fatal ("no current file pointer");
1874 vp
= &cur_file_ptr
->aux_syms
;
1877 aux
.ti
.bt
= (int) t
->basic_type
;
1878 aux
.ti
.continued
= 0;
1879 aux
.ti
.fBitfield
= t
->bitfield
;
1881 aux
.ti
.tq0
= (int) t
->type_qualifiers
[0];
1882 aux
.ti
.tq1
= (int) t
->type_qualifiers
[1];
1883 aux
.ti
.tq2
= (int) t
->type_qualifiers
[2];
1884 aux
.ti
.tq3
= (int) t
->type_qualifiers
[3];
1885 aux
.ti
.tq4
= (int) t
->type_qualifiers
[4];
1886 aux
.ti
.tq5
= (int) t
->type_qualifiers
[5];
1889 /* For anything that adds additional information, we must not hash,
1890 so check here, and reset our state. */
1892 if (state
!= hash_no
1893 && (t
->type_qualifiers
[0] == tq_Array
1894 || t
->type_qualifiers
[1] == tq_Array
1895 || t
->type_qualifiers
[2] == tq_Array
1896 || t
->type_qualifiers
[3] == tq_Array
1897 || t
->type_qualifiers
[4] == tq_Array
1898 || t
->type_qualifiers
[5] == tq_Array
1899 || t
->basic_type
== bt_Struct
1900 || t
->basic_type
== bt_Union
1901 || t
->basic_type
== bt_Enum
1903 || t
->num_dims
> 0))
1906 /* See if we can hash this type, and save some space, but some types
1907 can't be hashed (because they contain arrays or continuations),
1908 and others can be put into the hash list, but cannot use existing
1909 types because other aux entries precede this one. */
1911 if (state
!= hash_no
)
1913 register thash_t
*hash_ptr
;
1914 register symint_t hi
;
1916 hi
= aux
.isym
& ((1 << HASHBITS
) - 1);
1919 for (hash_ptr
= hash_tbl
[hi
];
1920 hash_ptr
!= (thash_t
*)0;
1921 hash_ptr
= hash_ptr
->next
)
1923 if (aux
.isym
== hash_ptr
->type
.isym
)
1927 if (hash_ptr
!= (thash_t
*) NULL
&& state
== hash_yes
)
1928 return hash_ptr
->indx
;
1930 if (hash_ptr
== (thash_t
*) NULL
)
1932 hash_ptr
= allocate_thash ();
1933 hash_ptr
->next
= hash_tbl
[hi
];
1934 hash_ptr
->type
= aux
;
1935 hash_ptr
->indx
= vp
->num_allocated
;
1936 hash_tbl
[hi
] = hash_ptr
;
1940 /* Everything is set up, add the aux symbol. */
1941 if (vp
->objects_last_page
== vp
->objects_per_page
)
1942 add_varray_page (vp
);
1944 aux_ptr
= &vp
->last
->datum
->aux
[ vp
->objects_last_page
++ ];
1945 aux_ptr
->type
= aux_tir
;
1946 aux_ptr
->data
= aux
;
1948 ret
= vp
->num_allocated
++;
1950 /* Add bitfield length if it exists.
1952 NOTE: Mips documentation claims bitfield goes at the end of the
1953 AUX record, but the DECstation compiler emits it here.
1954 (This would only make a difference for enum bitfields.)
1956 Also note: We use the last size given since gcc may emit 2
1957 for an enum bitfield. */
1960 (void) add_aux_sym_symint ((symint_t
)t
->sizes
[t
->num_sizes
-1]);
1963 /* Add tag information if needed. Structure, union, and enum
1964 references add 2 aux symbols: a [file index, symbol index]
1965 pointer to the structure type, and the current file index. */
1967 if (t
->basic_type
== bt_Struct
1968 || t
->basic_type
== bt_Union
1969 || t
->basic_type
== bt_Enum
)
1971 register symint_t file_index
= t
->tag_ptr
->ifd
;
1972 register localsym_t
*sym
= t
->tag_ptr
->sym
;
1973 register forward_t
*forward_ref
= allocate_forward ();
1975 if (sym
!= (localsym_t
*) NULL
)
1977 forward_ref
->next
= sym
->forward_ref
;
1978 sym
->forward_ref
= forward_ref
;
1982 forward_ref
->next
= t
->tag_ptr
->forward_ref
;
1983 t
->tag_ptr
->forward_ref
= forward_ref
;
1986 (void) add_aux_sym_rndx (ST_RFDESCAPE
, indexNil
);
1987 forward_ref
->index_ptr
1988 = &vp
->last
->datum
->aux
[ vp
->objects_last_page
- 1];
1990 (void) add_aux_sym_symint (file_index
);
1991 forward_ref
->ifd_ptr
1992 = &vp
->last
->datum
->aux
[ vp
->objects_last_page
- 1];
1995 /* Add information about array bounds if they exist. */
1996 for (i
= 0; i
< t
->num_dims
; i
++)
1998 (void) add_aux_sym_rndx (ST_RFDESCAPE
,
1999 cur_file_ptr
->int_type
);
2001 (void) add_aux_sym_symint (cur_file_ptr
->file_index
); /* file index*/
2002 (void) add_aux_sym_symint ((symint_t
) 0); /* low bound */
2003 (void) add_aux_sym_symint (t
->dimensions
[i
] - 1); /* high bound*/
2004 (void) add_aux_sym_symint ((t
->dimensions
[i
] == 0) /* stride */
2006 : (t
->sizes
[i
] * 8) / t
->dimensions
[i
]);
2009 /* NOTE: Mips documentation claims that the bitfield width goes here.
2010 But it needs to be emitted earlier. */
2015 /* Add a tag to the tag table (unless it already exists). */
2018 get_tag (tag
, sym
, basic_type
)
2019 const char *tag
; /* tag name */
2020 localsym_t
*sym
; /* tag start block */
2021 bt_t basic_type
; /* bt_Struct, bt_Union, or bt_Enum */
2027 if (cur_file_ptr
== (efdr_t
*) NULL
)
2028 as_fatal ("no current file pointer");
2030 hash_ptr
= (shash_t
*) hash_find (tag_hash
, tag
);
2032 if (hash_ptr
!= (shash_t
*) NULL
2033 && hash_ptr
->tag_ptr
!= (tag_t
*) NULL
)
2035 tag_ptr
= hash_ptr
->tag_ptr
;
2036 if (sym
!= (localsym_t
*) NULL
)
2038 tag_ptr
->basic_type
= basic_type
;
2039 tag_ptr
->ifd
= cur_file_ptr
->file_index
;
2045 if (hash_ptr
== (shash_t
*) NULL
)
2049 perm
= xmalloc ((unsigned long) (strlen (tag
) + 1));
2051 hash_ptr
= allocate_shash ();
2052 err
= hash_insert (tag_hash
, perm
, (char *) hash_ptr
);
2054 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2056 hash_ptr
->string
= perm
;
2059 tag_ptr
= allocate_tag ();
2060 tag_ptr
->forward_ref
= (forward_t
*) NULL
;
2061 tag_ptr
->hash_ptr
= hash_ptr
;
2062 tag_ptr
->same_name
= hash_ptr
->tag_ptr
;
2063 tag_ptr
->basic_type
= basic_type
;
2065 tag_ptr
->ifd
= ((sym
== (localsym_t
*) NULL
)
2067 : cur_file_ptr
->file_index
);
2068 tag_ptr
->same_block
= cur_tag_head
->first_tag
;
2070 cur_tag_head
->first_tag
= tag_ptr
;
2071 hash_ptr
->tag_ptr
= tag_ptr
;
2076 /* Add an unknown {struct, union, enum} tag. */
2079 add_unknown_tag (ptag
)
2080 tag_t
*ptag
; /* pointer to tag information */
2082 shash_t
*hash_ptr
= ptag
->hash_ptr
;
2083 char *name
= hash_ptr
->string
;
2090 char *agg_type
= "{unknown aggregate type}";
2091 switch (ptag
->basic_type
)
2093 case bt_Struct
: agg_type
= "struct"; break;
2094 case bt_Union
: agg_type
= "union"; break;
2095 case bt_Enum
: agg_type
= "enum"; break;
2099 fprintf (stderr
, "unknown %s %.*s found\n", agg_type
,
2100 hash_ptr
->len
, name_start
);
2104 sym
= add_ecoff_symbol (name
,
2112 (void) add_ecoff_symbol (name
,
2120 for (pf
= &sym
->forward_ref
; *pf
!= (forward_t
*) NULL
; pf
= &(*pf
)->next
)
2122 *pf
= ptag
->forward_ref
;
2125 /* Add a procedure to the current file's list of procedures, and record
2126 this is the current procedure. */
2129 add_procedure (func
)
2130 char *func
; /* func name */
2132 register varray_t
*vp
;
2133 register proc_t
*new_proc_ptr
;
2138 fputc ('\n', stderr
);
2141 if (cur_file_ptr
== (efdr_t
*) NULL
)
2142 as_fatal ("no current file pointer");
2144 vp
= &cur_file_ptr
->procs
;
2146 if (vp
->objects_last_page
== vp
->objects_per_page
)
2147 add_varray_page (vp
);
2149 cur_proc_ptr
= new_proc_ptr
= &vp
->last
->datum
->proc
[vp
->objects_last_page
++];
2151 if (first_proc_ptr
== (proc_t
*) NULL
)
2152 first_proc_ptr
= new_proc_ptr
;
2154 vp
->num_allocated
++;
2156 new_proc_ptr
->pdr
.isym
= -1;
2157 new_proc_ptr
->pdr
.iline
= -1;
2158 new_proc_ptr
->pdr
.lnLow
= -1;
2159 new_proc_ptr
->pdr
.lnHigh
= -1;
2161 /* Set the BSF_FUNCTION flag for the symbol. */
2162 sym
= symbol_find_or_make (func
);
2163 sym
->bsym
->flags
|= BSF_FUNCTION
;
2165 /* Push the start of the function. */
2166 new_proc_ptr
->sym
= add_ecoff_symbol ((const char *) NULL
, st_Proc
, sc_Text
,
2167 sym
, (bfd_vma
) 0, (symint_t
) 0,
2172 /* Fill in the linenos preceding the .ent, if any. */
2173 if (noproc_lineno
!= (lineno_list_t
*) NULL
)
2177 for (l
= noproc_lineno
; l
!= (lineno_list_t
*) NULL
; l
= l
->next
)
2178 l
->proc
= new_proc_ptr
;
2179 *last_lineno_ptr
= noproc_lineno
;
2180 while (*last_lineno_ptr
!= NULL
)
2182 last_lineno
= *last_lineno_ptr
;
2183 last_lineno_ptr
= &last_lineno
->next
;
2185 noproc_lineno
= (lineno_list_t
*) NULL
;
2189 /* Add a new filename, and set up all of the file relative
2190 virtual arrays (strings, symbols, aux syms, etc.). Record
2191 where the current file structure lives. */
2194 add_file (file_name
, indx
, fake
)
2195 const char *file_name
; /* file name */
2199 register int first_ch
;
2200 register efdr_t
*fil_ptr
;
2204 fprintf (stderr
, "\tfile\t%.*s\n", len
, file_start
);
2207 /* If the file name is NULL, then no .file symbol appeared, and we
2208 want to use the actual file name. */
2209 if (file_name
== (const char *) NULL
)
2213 if (first_file
!= (efdr_t
*) NULL
)
2214 as_fatal ("fake .file after real one");
2215 as_where (&file
, (unsigned int *) NULL
);
2216 file_name
= (const char *) file
;
2218 /* Automatically generate ECOFF debugging information, since I
2219 think that's what other ECOFF assemblers do. We don't do
2220 this if we see a .file directive with a string, since that
2221 implies that some sort of debugging information is being
2223 if (! symbol_table_frozen
&& debug_type
== DEBUG_NONE
)
2224 debug_type
= DEBUG_ECOFF
;
2229 listing_source_file (file_name
);
2232 current_stabs_filename
= file_name
;
2234 /* If we're creating stabs, then we don't actually make a new FDR.
2235 Instead, we just create a stabs symbol. */
2238 (void) add_ecoff_symbol (file_name
, st_Nil
, sc_Nil
,
2239 symbol_new ("L0\001", now_seg
,
2240 (valueT
) frag_now_fix (),
2242 (bfd_vma
) 0, 0, ECOFF_MARK_STAB (N_SOL
));
2246 first_ch
= *file_name
;
2248 /* FIXME: We can't safely merge files which have line number
2249 information (fMerge will be zero in this case). Otherwise, we
2250 get incorrect line number debugging info. See for instance
2251 ecoff_build_lineno, which will end up setting all file->fdr.*
2252 fields multiple times, resulting in incorrect debug info. In
2253 order to make this work right, all line number and symbol info
2254 for the same source file has to be adjacent in the object file,
2255 so that a single file descriptor can be used to point to them.
2256 This would require maintaining file specific lists of line
2257 numbers and symbols for each file, so that they can be merged
2258 together (or output together) when two .file pseudo-ops are
2259 merged into one file descriptor. */
2261 /* See if the file has already been created. */
2262 for (fil_ptr
= first_file
;
2263 fil_ptr
!= (efdr_t
*) NULL
;
2264 fil_ptr
= fil_ptr
->next_file
)
2266 if (first_ch
== fil_ptr
->name
[0]
2267 && strcmp (file_name
, fil_ptr
->name
) == 0
2268 && fil_ptr
->fdr
.fMerge
)
2270 cur_file_ptr
= fil_ptr
;
2272 cur_file_ptr
->fake
= 0;
2277 /* If this is a new file, create it. */
2278 if (fil_ptr
== (efdr_t
*) NULL
)
2280 if (file_desc
.objects_last_page
== file_desc
.objects_per_page
)
2281 add_varray_page (&file_desc
);
2283 fil_ptr
= cur_file_ptr
=
2284 &file_desc
.last
->datum
->file
[file_desc
.objects_last_page
++];
2285 *fil_ptr
= init_file
;
2287 fil_ptr
->file_index
= current_file_idx
++;
2288 ++file_desc
.num_allocated
;
2290 fil_ptr
->fake
= fake
;
2292 /* Allocate the string hash table. */
2293 fil_ptr
->str_hash
= hash_new ();
2295 /* Make sure 0 byte in string table is null */
2296 add_string (&fil_ptr
->strings
,
2301 if (strlen (file_name
) > PAGE_USIZE
- 2)
2302 as_fatal ("Filename goes over one page boundary.");
2304 /* Push the start of the filename. We assume that the filename
2305 will be stored at string offset 1. */
2306 (void) add_ecoff_symbol (file_name
, st_File
, sc_Text
,
2307 (symbolS
*) NULL
, (bfd_vma
) 0,
2308 (symint_t
) 0, (symint_t
) 0);
2309 fil_ptr
->fdr
.rss
= 1;
2310 fil_ptr
->name
= &fil_ptr
->strings
.last
->datum
->byte
[1];
2312 /* Update the linked list of file descriptors. */
2313 *last_file_ptr
= fil_ptr
;
2314 last_file_ptr
= &fil_ptr
->next_file
;
2316 /* Add void & int types to the file (void should be first to catch
2317 errant 0's within the index fields). */
2318 fil_ptr
->void_type
= add_aux_sym_tir (&void_type_info
,
2320 &cur_file_ptr
->thash_head
[0]);
2322 fil_ptr
->int_type
= add_aux_sym_tir (&int_type_info
,
2324 &cur_file_ptr
->thash_head
[0]);
2328 /* This function is called when the assembler notices a preprocessor
2329 directive switching to a new file. This will not happen in
2330 compiler output, only in hand coded assembler. */
2333 ecoff_new_file (name
)
2336 if (cur_file_ptr
!= NULL
&& strcmp (cur_file_ptr
->name
, name
) == 0)
2338 add_file (name
, 0, 0);
2340 /* This is a hand coded assembler file, so automatically turn on
2341 debugging information. */
2342 if (debug_type
== DEBUG_NONE
)
2343 debug_type
= DEBUG_ECOFF
;
2348 /* Convert storage class to string. */
2351 sc_to_string(storage_class
)
2354 switch(storage_class
)
2356 case sc_Nil
: return "Nil,";
2357 case sc_Text
: return "Text,";
2358 case sc_Data
: return "Data,";
2359 case sc_Bss
: return "Bss,";
2360 case sc_Register
: return "Register,";
2361 case sc_Abs
: return "Abs,";
2362 case sc_Undefined
: return "Undefined,";
2363 case sc_CdbLocal
: return "CdbLocal,";
2364 case sc_Bits
: return "Bits,";
2365 case sc_CdbSystem
: return "CdbSystem,";
2366 case sc_RegImage
: return "RegImage,";
2367 case sc_Info
: return "Info,";
2368 case sc_UserStruct
: return "UserStruct,";
2369 case sc_SData
: return "SData,";
2370 case sc_SBss
: return "SBss,";
2371 case sc_RData
: return "RData,";
2372 case sc_Var
: return "Var,";
2373 case sc_Common
: return "Common,";
2374 case sc_SCommon
: return "SCommon,";
2375 case sc_VarRegister
: return "VarRegister,";
2376 case sc_Variant
: return "Variant,";
2377 case sc_SUndefined
: return "SUndefined,";
2378 case sc_Init
: return "Init,";
2379 case sc_Max
: return "Max,";
2389 /* Convert symbol type to string. */
2392 st_to_string(symbol_type
)
2397 case st_Nil
: return "Nil,";
2398 case st_Global
: return "Global,";
2399 case st_Static
: return "Static,";
2400 case st_Param
: return "Param,";
2401 case st_Local
: return "Local,";
2402 case st_Label
: return "Label,";
2403 case st_Proc
: return "Proc,";
2404 case st_Block
: return "Block,";
2405 case st_End
: return "End,";
2406 case st_Member
: return "Member,";
2407 case st_Typedef
: return "Typedef,";
2408 case st_File
: return "File,";
2409 case st_RegReloc
: return "RegReloc,";
2410 case st_Forward
: return "Forward,";
2411 case st_StaticProc
: return "StaticProc,";
2412 case st_Constant
: return "Constant,";
2413 case st_Str
: return "String,";
2414 case st_Number
: return "Number,";
2415 case st_Expr
: return "Expr,";
2416 case st_Type
: return "Type,";
2417 case st_Max
: return "Max,";
2425 /* Parse .begin directives which have a label as the first argument
2426 which gives the location of the start of the block. */
2429 ecoff_directive_begin (ignore
)
2435 if (cur_file_ptr
== (efdr_t
*) NULL
)
2437 as_warn (".begin directive without a preceding .file directive");
2438 demand_empty_rest_of_line ();
2442 if (cur_proc_ptr
== (proc_t
*) NULL
)
2444 as_warn (".begin directive without a preceding .ent directive");
2445 demand_empty_rest_of_line ();
2449 name
= input_line_pointer
;
2450 name_end
= get_symbol_end ();
2452 (void) add_ecoff_symbol ((const char *) NULL
, st_Block
, sc_Text
,
2453 symbol_find_or_make (name
),
2454 (bfd_vma
) 0, (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 /* Parse .bend directives which have a label as the first argument
2464 which gives the location of the end of the block. */
2467 ecoff_directive_bend (ignore
)
2474 if (cur_file_ptr
== (efdr_t
*) NULL
)
2476 as_warn (".bend directive without a preceding .file directive");
2477 demand_empty_rest_of_line ();
2481 if (cur_proc_ptr
== (proc_t
*) NULL
)
2483 as_warn (".bend directive without a preceding .ent directive");
2484 demand_empty_rest_of_line ();
2488 name
= input_line_pointer
;
2489 name_end
= get_symbol_end ();
2491 /* The value is the distance between the .bend directive and the
2492 corresponding symbol. We fill in the offset when we write out
2494 endsym
= symbol_find (name
);
2495 if (endsym
== (symbolS
*) NULL
)
2496 as_warn (".bend directive names unknown symbol");
2498 (void) add_ecoff_symbol ((const char *) NULL
, st_End
, sc_Text
, endsym
,
2499 (bfd_vma
) 0, (symint_t
) 0, (symint_t
) 0);
2501 *input_line_pointer
= name_end
;
2503 /* The line number follows, but we don't use it. */
2504 (void) get_absolute_expression ();
2505 demand_empty_rest_of_line ();
2508 /* COFF debugging information is provided as a series of directives
2509 (.def, .scl, etc.). We build up information as we read the
2510 directives in the following static variables, and file it away when
2511 we reach the .endef directive. */
2512 static char *coff_sym_name
;
2513 static type_info_t coff_type
;
2514 static sc_t coff_storage_class
;
2515 static st_t coff_symbol_typ
;
2516 static int coff_is_function
;
2517 static char *coff_tag
;
2518 static valueT coff_value
;
2519 static symbolS
*coff_sym_value
;
2520 static bfd_vma coff_sym_addend
;
2521 static int coff_inside_enumeration
;
2523 /* Handle a .def directive: start defining a symbol. */
2526 ecoff_directive_def (ignore
)
2532 ecoff_debugging_seen
= 1;
2536 name
= input_line_pointer
;
2537 name_end
= get_symbol_end ();
2539 if (coff_sym_name
!= (char *) NULL
)
2540 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2541 else if (*name
== '\0')
2542 as_warn ("Empty symbol name in .def; ignored");
2545 if (coff_sym_name
!= (char *) NULL
)
2546 free (coff_sym_name
);
2547 if (coff_tag
!= (char *) NULL
)
2549 coff_sym_name
= (char *) xmalloc ((unsigned long) (strlen (name
) + 1));
2550 strcpy (coff_sym_name
, name
);
2551 coff_type
= type_info_init
;
2552 coff_storage_class
= sc_Nil
;
2553 coff_symbol_typ
= st_Nil
;
2554 coff_is_function
= 0;
2555 coff_tag
= (char *) NULL
;
2557 coff_sym_value
= (symbolS
*) NULL
;
2558 coff_sym_addend
= 0;
2561 *input_line_pointer
= name_end
;
2563 demand_empty_rest_of_line ();
2566 /* Handle a .dim directive, used to give dimensions for an array. The
2567 arguments are comma separated numbers. mips-tfile assumes that
2568 there will not be more than 6 dimensions, and gdb won't read any
2569 more than that anyhow, so I will also make that assumption. */
2572 ecoff_directive_dim (ignore
)
2578 if (coff_sym_name
== (char *) NULL
)
2580 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2581 demand_empty_rest_of_line ();
2585 for (i
= 0; i
< N_TQ
; i
++)
2588 dimens
[i
] = get_absolute_expression ();
2589 if (*input_line_pointer
== ',')
2590 ++input_line_pointer
;
2593 if (*input_line_pointer
!= '\n'
2594 && *input_line_pointer
!= ';')
2595 as_warn ("Badly formed .dim directive");
2603 /* The dimensions are stored away in reverse order. */
2606 if (coff_type
.num_dims
>= N_TQ
)
2608 as_warn ("Too many .dim entries");
2611 coff_type
.dimensions
[coff_type
.num_dims
] = dimens
[i
];
2612 ++coff_type
.num_dims
;
2615 demand_empty_rest_of_line ();
2618 /* Handle a .scl directive, which sets the COFF storage class of the
2622 ecoff_directive_scl (ignore
)
2627 if (coff_sym_name
== (char *) NULL
)
2629 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2630 demand_empty_rest_of_line ();
2634 val
= get_absolute_expression ();
2636 coff_symbol_typ
= map_coff_sym_type
[val
];
2637 coff_storage_class
= map_coff_storage
[val
];
2639 demand_empty_rest_of_line ();
2642 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2643 .size can have multiple arguments. We humor it, although gcc will
2644 never generate more than one argument. */
2647 ecoff_directive_size (ignore
)
2653 if (coff_sym_name
== (char *) NULL
)
2655 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2656 demand_empty_rest_of_line ();
2660 for (i
= 0; i
< N_TQ
; i
++)
2663 sizes
[i
] = get_absolute_expression ();
2664 if (*input_line_pointer
== ',')
2665 ++input_line_pointer
;
2668 if (*input_line_pointer
!= '\n'
2669 && *input_line_pointer
!= ';')
2670 as_warn ("Badly formed .size directive");
2678 /* The sizes are stored away in reverse order. */
2681 if (coff_type
.num_sizes
>= N_TQ
)
2683 as_warn ("Too many .size entries");
2686 coff_type
.sizes
[coff_type
.num_sizes
] = sizes
[i
];
2687 ++coff_type
.num_sizes
;
2690 demand_empty_rest_of_line ();
2693 /* Handle the .type directive, which gives the COFF type of the
2697 ecoff_directive_type (ignore
)
2704 if (coff_sym_name
== (char *) NULL
)
2706 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2707 demand_empty_rest_of_line ();
2711 val
= get_absolute_expression ();
2713 coff_type
.orig_type
= BTYPE (val
);
2714 coff_type
.basic_type
= map_coff_types
[coff_type
.orig_type
];
2716 tq_ptr
= &coff_type
.type_qualifiers
[N_TQ
];
2717 while (val
&~ N_BTMASK
)
2719 if (tq_ptr
== &coff_type
.type_qualifiers
[0])
2721 /* FIXME: We could handle this by setting the continued bit.
2722 There would still be a limit: the .type argument can not
2724 as_warn ("The type of %s is too complex; it will be simplified",
2730 else if (ISFCN (val
))
2731 *--tq_ptr
= tq_Proc
;
2732 else if (ISARY (val
))
2733 *--tq_ptr
= tq_Array
;
2735 as_fatal ("Unrecognized .type argument");
2740 tq_shft
= &coff_type
.type_qualifiers
[0];
2741 while (tq_ptr
!= &coff_type
.type_qualifiers
[N_TQ
])
2742 *tq_shft
++ = *tq_ptr
++;
2744 if (tq_shft
!= &coff_type
.type_qualifiers
[0] && tq_shft
[-1] == tq_Proc
)
2746 /* If this is a function, ignore it, so that we don't get two
2747 entries (one from the .ent, and one for the .def that
2748 precedes it). Save the type information so that the end
2749 block can properly add it after the begin block index. For
2750 MIPS knows what reason, we must strip off the function type
2752 coff_is_function
= 1;
2753 tq_shft
[-1] = tq_Nil
;
2756 while (tq_shft
!= &coff_type
.type_qualifiers
[N_TQ
])
2757 *tq_shft
++ = tq_Nil
;
2759 demand_empty_rest_of_line ();
2762 /* Handle the .tag directive, which gives the name of a structure,
2766 ecoff_directive_tag (ignore
)
2772 if (coff_sym_name
== (char *) NULL
)
2774 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2775 demand_empty_rest_of_line ();
2779 name
= input_line_pointer
;
2780 name_end
= get_symbol_end ();
2782 coff_tag
= (char *) xmalloc ((unsigned long) (strlen (name
) + 1));
2783 strcpy (coff_tag
, name
);
2785 *input_line_pointer
= name_end
;
2787 demand_empty_rest_of_line ();
2790 /* Handle the .val directive, which gives the value of the symbol. It
2791 may be the name of a static or global symbol. */
2794 ecoff_directive_val (ignore
)
2799 if (coff_sym_name
== (char *) NULL
)
2801 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2802 demand_empty_rest_of_line ();
2807 if (exp
.X_op
!= O_constant
&& exp
.X_op
!= O_symbol
)
2809 as_bad (".val expression is too copmlex");
2810 demand_empty_rest_of_line ();
2814 if (exp
.X_op
== O_constant
)
2815 coff_value
= exp
.X_add_number
;
2818 coff_sym_value
= exp
.X_add_symbol
;
2819 coff_sym_addend
= exp
.X_add_number
;
2822 demand_empty_rest_of_line ();
2825 /* Handle the .endef directive, which terminates processing of COFF
2826 debugging information for a symbol. */
2829 ecoff_directive_endef (ignore
)
2836 demand_empty_rest_of_line ();
2838 if (coff_sym_name
== (char *) NULL
)
2840 as_warn (".endef pseudo-op used before .def; ignored");
2844 name
= coff_sym_name
;
2845 coff_sym_name
= (char *) NULL
;
2847 /* If the symbol is a static or external, we have already gotten the
2848 appropriate type and class, so make sure we don't override those
2849 values. This is needed because there are some type and classes
2850 that are not in COFF, such as short data, etc. */
2851 if (coff_sym_value
!= (symbolS
*) NULL
)
2853 coff_symbol_typ
= st_Nil
;
2854 coff_storage_class
= sc_Nil
;
2857 coff_type
.extra_sizes
= coff_tag
!= (char *) NULL
;
2858 if (coff_type
.num_dims
> 0)
2860 int diff
= coff_type
.num_dims
- coff_type
.num_sizes
;
2861 int i
= coff_type
.num_dims
- 1;
2864 if (coff_type
.num_sizes
!= 1 || diff
< 0)
2866 as_warn ("Bad COFF debugging info");
2870 /* If this is an array, make sure the same number of dimensions
2871 and sizes were passed, creating extra sizes for multiply
2872 dimensioned arrays if not passed. */
2873 coff_type
.extra_sizes
= 0;
2876 j
= (sizeof (coff_type
.sizes
) / sizeof (coff_type
.sizes
[0])) - 1;
2879 coff_type
.sizes
[j
] = (((j
- diff
) >= 0)
2880 ? coff_type
.sizes
[j
- diff
]
2885 coff_type
.num_sizes
= i
+ 1;
2886 for (i
--; i
>= 0; i
--)
2887 coff_type
.sizes
[i
] = (coff_type
.dimensions
[i
+ 1] == 0
2889 : (coff_type
.sizes
[i
+ 1]
2890 / coff_type
.dimensions
[i
+ 1]));
2893 else if (coff_symbol_typ
== st_Member
2894 && coff_type
.num_sizes
- coff_type
.extra_sizes
== 1)
2896 /* Is this a bitfield? This is indicated by a structure memeber
2897 having a size field that isn't an array. */
2898 coff_type
.bitfield
= 1;
2901 /* Except for enumeration members & begin/ending of scopes, put the
2902 type word in the aux. symbol table. */
2903 if (coff_symbol_typ
== st_Block
|| coff_symbol_typ
== st_End
)
2905 else if (coff_inside_enumeration
)
2906 indx
= cur_file_ptr
->void_type
;
2909 if (coff_type
.basic_type
== bt_Struct
2910 || coff_type
.basic_type
== bt_Union
2911 || coff_type
.basic_type
== bt_Enum
)
2913 if (coff_tag
== (char *) NULL
)
2915 as_warn ("No tag specified for %s", name
);
2919 coff_type
.tag_ptr
= get_tag (coff_tag
, (localsym_t
*) NULL
,
2920 coff_type
.basic_type
);
2923 if (coff_is_function
)
2925 last_func_type_info
= coff_type
;
2926 last_func_sym_value
= coff_sym_value
;
2930 indx
= add_aux_sym_tir (&coff_type
,
2932 &cur_file_ptr
->thash_head
[0]);
2935 /* Do any last minute adjustments that are necessary. */
2936 switch (coff_symbol_typ
)
2941 /* For the beginning of structs, unions, and enumerations, the
2942 size info needs to be passed in the value field. */
2944 if (coff_type
.num_sizes
- coff_type
.num_dims
- coff_type
.extra_sizes
2947 as_warn ("Bad COFF debugging information");
2951 coff_value
= coff_type
.sizes
[0];
2953 coff_inside_enumeration
= (coff_type
.orig_type
== T_ENUM
);
2956 /* For the end of structs, unions, and enumerations, omit the
2957 name which is always ".eos". This needs to be done last, so
2958 that any error reporting above gives the correct name. */
2961 name
= (char *) NULL
;
2963 coff_inside_enumeration
= 0;
2966 /* Members of structures and unions that aren't bitfields, need
2967 to adjust the value from a byte offset to a bit offset.
2968 Members of enumerations do not have the value adjusted, and
2969 can be distinguished by indx == indexNil. For enumerations,
2970 update the maximum enumeration value. */
2972 if (! coff_type
.bitfield
&& ! coff_inside_enumeration
)
2978 /* Add the symbol. */
2979 sym
= add_ecoff_symbol (name
,
2984 (symint_t
) coff_value
,
2987 /* deal with struct, union, and enum tags. */
2988 if (coff_symbol_typ
== st_Block
)
2990 /* Create or update the tag information. */
2991 tag_t
*tag_ptr
= get_tag (name
,
2993 coff_type
.basic_type
);
2996 /* Remember any forward references. */
2997 for (pf
= &sym
->forward_ref
;
2998 *pf
!= (forward_t
*) NULL
;
3001 *pf
= tag_ptr
->forward_ref
;
3002 tag_ptr
->forward_ref
= (forward_t
*) NULL
;
3006 /* Parse .end directives. */
3009 ecoff_directive_end (ignore
)
3017 if (cur_file_ptr
== (efdr_t
*) NULL
)
3019 as_warn (".end directive without a preceding .file directive");
3020 demand_empty_rest_of_line ();
3024 if (cur_proc_ptr
== (proc_t
*) NULL
)
3026 as_warn (".end directive without a preceding .ent directive");
3027 demand_empty_rest_of_line ();
3031 name
= input_line_pointer
;
3032 name_end
= get_symbol_end ();
3035 if (! is_name_beginner (ch
))
3037 as_warn (".end directive has no name");
3038 *input_line_pointer
= name_end
;
3039 demand_empty_rest_of_line ();
3043 /* The value is the distance between the .end directive and the
3044 corresponding symbol. We create a fake symbol to hold the
3045 current location, and put in the offset when we write out the
3047 ent
= symbol_find (name
);
3048 if (ent
== (symbolS
*) NULL
)
3049 as_warn (".end directive names unknown symbol");
3051 (void) add_ecoff_symbol ((const char *) NULL
, st_End
, sc_Text
,
3052 symbol_new ("L0\001", now_seg
,
3053 (valueT
) frag_now_fix (),
3055 (bfd_vma
) 0, (symint_t
) 0, (symint_t
) 0);
3057 cur_proc_ptr
= (proc_t
*) NULL
;
3059 *input_line_pointer
= name_end
;
3060 demand_empty_rest_of_line ();
3063 /* Parse .ent directives. */
3066 ecoff_directive_ent (ignore
)
3073 if (cur_file_ptr
== (efdr_t
*) NULL
)
3074 add_file ((const char *) NULL
, 0, 1);
3076 if (cur_proc_ptr
!= (proc_t
*) NULL
)
3078 as_warn ("second .ent directive found before .end directive");
3079 demand_empty_rest_of_line ();
3083 name
= input_line_pointer
;
3084 name_end
= get_symbol_end ();
3087 if (! is_name_beginner (ch
))
3089 as_warn (".ent directive has no name");
3090 *input_line_pointer
= name_end
;
3091 demand_empty_rest_of_line ();
3095 add_procedure (name
);
3097 *input_line_pointer
= name_end
;
3099 /* The .ent directive is sometimes followed by a number. I'm not
3100 really sure what the number means. I don't see any way to store
3101 the information in the PDR. The Irix 4 assembler seems to ignore
3104 if (*input_line_pointer
== ',')
3106 ++input_line_pointer
;
3109 if (isdigit (*input_line_pointer
) || *input_line_pointer
== '-')
3110 (void) get_absolute_expression ();
3112 demand_empty_rest_of_line ();
3115 /* Parse .extern directives. */
3118 ecoff_directive_extern (ignore
)
3126 name
= input_line_pointer
;
3127 c
= get_symbol_end ();
3128 symbolp
= symbol_find_or_make (name
);
3129 *input_line_pointer
= c
;
3131 S_SET_EXTERNAL (symbolp
);
3133 if (*input_line_pointer
== ',')
3134 ++input_line_pointer
;
3135 size
= get_absolute_expression ();
3137 symbolp
->ecoff_extern_size
= size
;
3140 /* Parse .file directives. */
3143 ecoff_directive_file (ignore
)
3150 if (cur_proc_ptr
!= (proc_t
*) NULL
)
3152 as_warn ("No way to handle .file within .ent/.end section");
3153 demand_empty_rest_of_line ();
3157 indx
= (int) get_absolute_expression ();
3159 /* FIXME: we don't have to save the name here. */
3160 name
= demand_copy_C_string (&len
);
3162 add_file (name
, indx
- 1, 0);
3164 demand_empty_rest_of_line ();
3167 /* Parse .fmask directives. */
3170 ecoff_directive_fmask (ignore
)
3175 if (cur_proc_ptr
== (proc_t
*) NULL
)
3177 as_warn (".fmask outside of .ent");
3178 demand_empty_rest_of_line ();
3182 if (get_absolute_expression_and_terminator (&val
) != ',')
3184 as_warn ("Bad .fmask directive");
3185 --input_line_pointer
;
3186 demand_empty_rest_of_line ();
3190 cur_proc_ptr
->pdr
.fregmask
= val
;
3191 cur_proc_ptr
->pdr
.fregoffset
= get_absolute_expression ();
3193 demand_empty_rest_of_line ();
3196 /* Parse .frame directives. */
3199 ecoff_directive_frame (ignore
)
3204 if (cur_proc_ptr
== (proc_t
*) NULL
)
3206 as_warn (".frame outside of .ent");
3207 demand_empty_rest_of_line ();
3211 cur_proc_ptr
->pdr
.framereg
= tc_get_register (1);
3214 if (*input_line_pointer
++ != ','
3215 || get_absolute_expression_and_terminator (&val
) != ',')
3217 as_warn ("Bad .frame directive");
3218 --input_line_pointer
;
3219 demand_empty_rest_of_line ();
3223 cur_proc_ptr
->pdr
.frameoffset
= val
;
3225 cur_proc_ptr
->pdr
.pcreg
= tc_get_register (0);
3227 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3228 to Sandro. I don't yet know where this value should be stored, if
3230 demand_empty_rest_of_line ();
3236 /* Parse .mask directives. */
3239 ecoff_directive_mask (ignore
)
3244 if (cur_proc_ptr
== (proc_t
*) NULL
)
3246 as_warn (".mask outside of .ent");
3247 demand_empty_rest_of_line ();
3251 if (get_absolute_expression_and_terminator (&val
) != ',')
3253 as_warn ("Bad .mask directive");
3254 --input_line_pointer
;
3255 demand_empty_rest_of_line ();
3259 cur_proc_ptr
->pdr
.regmask
= val
;
3260 cur_proc_ptr
->pdr
.regoffset
= get_absolute_expression ();
3262 demand_empty_rest_of_line ();
3265 /* Parse .loc directives. */
3268 ecoff_directive_loc (ignore
)
3271 lineno_list_t
*list
;
3274 if (cur_file_ptr
== (efdr_t
*) NULL
)
3276 as_warn (".loc before .file");
3277 demand_empty_rest_of_line ();
3281 if (now_seg
!= text_section
)
3283 as_warn (".loc outside of .text");
3284 demand_empty_rest_of_line ();
3288 /* Skip the file number. */
3290 get_absolute_expression ();
3293 lineno
= get_absolute_expression ();
3297 listing_source_line (lineno
);
3300 /* If we're building stabs, then output a special label rather than
3301 ECOFF line number info. */
3304 (void) add_ecoff_symbol ((char *) NULL
, st_Label
, sc_Text
,
3305 symbol_new ("L0\001", now_seg
,
3306 (valueT
) frag_now_fix (),
3308 (bfd_vma
) 0, 0, lineno
);
3312 list
= allocate_lineno_list ();
3314 list
->next
= (lineno_list_t
*) NULL
;
3315 list
->file
= cur_file_ptr
;
3316 list
->proc
= cur_proc_ptr
;
3317 list
->frag
= frag_now
;
3318 list
->paddr
= frag_now_fix ();
3319 list
->lineno
= lineno
;
3321 /* We don't want to merge files which have line numbers. */
3322 cur_file_ptr
->fdr
.fMerge
= 0;
3324 /* A .loc directive will sometimes appear before a .ent directive,
3325 which means that cur_proc_ptr will be NULL here. Arrange to
3327 if (cur_proc_ptr
== (proc_t
*) NULL
)
3331 pl
= &noproc_lineno
;
3332 while (*pl
!= (lineno_list_t
*) NULL
)
3339 *last_lineno_ptr
= list
;
3340 last_lineno_ptr
= &list
->next
;
3344 /* The MIPS assembler sometimes inserts nop instructions in the
3345 instruction stream. When this happens, we must patch up the .loc
3346 information so that it points to the instruction after the nop. */
3349 ecoff_fix_loc (old_frag
, old_frag_offset
)
3351 unsigned long old_frag_offset
;
3353 if (last_lineno
!= NULL
3354 && last_lineno
->frag
== old_frag
3355 && last_lineno
->paddr
== old_frag_offset
)
3357 last_lineno
->frag
= frag_now
;
3358 last_lineno
->paddr
= frag_now_fix ();
3362 /* Make sure the @stabs symbol is emitted. */
3370 /* Add a dummy @stabs dymbol. */
3372 (void) add_ecoff_symbol (stabs_symbol
, stNil
, scInfo
,
3374 (bfd_vma
) 0, (symint_t
) -1,
3375 ECOFF_MARK_STAB (0));
3379 /* Parse .weakext directives. */
3382 ecoff_directive_weakext (ignore
)
3390 name
= input_line_pointer
;
3391 c
= get_symbol_end ();
3392 symbolP
= symbol_find_or_make (name
);
3393 *input_line_pointer
= c
;
3397 if (*input_line_pointer
== ',')
3399 if (S_IS_DEFINED (symbolP
))
3401 as_bad ("Ignoring attempt to redefine symbol `%s'.",
3402 S_GET_NAME (symbolP
));
3403 ignore_rest_of_line ();
3407 ++input_line_pointer
;
3409 if (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3412 if (exp
.X_op
!= O_symbol
)
3414 as_bad ("bad .weakext directive");
3415 ignore_rest_of_line();
3418 symbolP
->sy_value
= exp
;
3422 S_SET_WEAK (symbolP
);
3424 demand_empty_rest_of_line ();
3427 /* Handle .stabs directives. The actual parsing routine is done by a
3428 generic routine. This routine is called via OBJ_PROCESS_STAB.
3429 When this is called, input_line_pointer will be pointing at the
3430 value field of the stab.
3432 .stabs directives have five fields:
3433 "string" a string, encoding the type information.
3434 code a numeric code, defined in <stab.h>
3436 desc a zero or line number
3437 value a numeric value or an address.
3439 If the value is relocatable, we transform this into:
3440 iss points as an index into string space
3441 value value from lookup of the name
3442 st st from lookup of the name
3443 sc sc from lookup of the name
3444 index code|CODE_MASK
3446 If the value is not relocatable, we transform this into:
3447 iss points as an index into string space
3451 index code|CODE_MASK
3453 .stabn directives have four fields (string is null):
3454 code a numeric code, defined in <stab.h>
3456 desc a zero or a line number
3457 value a numeric value or an address. */
3460 ecoff_stab (sec
, what
, string
, type
, other
, desc
)
3468 efdr_t
*save_file_ptr
= cur_file_ptr
;
3475 localsym_t
*hold
= NULL
;
3477 ecoff_debugging_seen
= 1;
3479 /* We don't handle .stabd. */
3480 if (what
!= 's' && what
!= 'n')
3482 as_bad (".stab%c is not supported", what
);
3486 /* A .stabn uses a null name, not an empty string. */
3490 /* We ignore the other field. */
3492 as_warn (".stab%c: ignoring non-zero other field", what
);
3494 /* Make sure we have a current file. */
3495 if (cur_file_ptr
== (efdr_t
*) NULL
)
3497 add_file ((const char *) NULL
, 0, 1);
3498 save_file_ptr
= cur_file_ptr
;
3501 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3503 if (stabs_seen
== 0)
3506 /* Line number stabs are handled differently, since they have two
3507 values, the line number and the address of the label. We use the
3508 index field (aka desc) to hold the line number, and the value
3509 field to hold the address. The symbol type is st_Label, which
3510 should be different from the other stabs, so that gdb can
3512 if (type
== N_SLINE
)
3520 listing_source_line ((unsigned int) desc
);
3523 dummy_symr
.index
= desc
;
3524 if (dummy_symr
.index
!= desc
)
3526 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3531 name
= input_line_pointer
;
3532 name_end
= get_symbol_end ();
3534 sym
= symbol_find_or_make (name
);
3535 *input_line_pointer
= name_end
;
3546 if (listing
&& (type
== N_SO
|| type
== N_SOL
))
3547 listing_source_file (string
);
3550 if (isdigit (*input_line_pointer
)
3551 || *input_line_pointer
== '-'
3552 || *input_line_pointer
== '+')
3556 sym
= (symbolS
*) NULL
;
3557 value
= get_absolute_expression ();
3560 else if (! is_name_beginner ((unsigned char) *input_line_pointer
))
3562 as_warn ("Illegal .stab%c directive, bad character", what
);
3573 if (exp
.X_op
== O_constant
)
3576 value
= exp
.X_add_number
;
3579 else if (exp
.X_op
== O_symbol
)
3581 sym
= exp
.X_add_symbol
;
3583 addend
= exp
.X_add_number
;
3587 sym
= make_expr_symbol (&exp
);
3593 indx
= ECOFF_MARK_STAB (type
);
3596 /* Don't store the stabs symbol we are creating as the type of the
3597 ECOFF symbol. We want to compute the type of the ECOFF symbol
3599 if (sym
!= (symbolS
*) NULL
)
3600 hold
= sym
->ecoff_symbol
;
3602 (void) add_ecoff_symbol (string
, st
, sc
, sym
, addend
, value
, indx
);
3604 if (sym
!= (symbolS
*) NULL
)
3605 sym
->ecoff_symbol
= hold
;
3607 /* Restore normal file type. */
3608 cur_file_ptr
= save_file_ptr
;
3611 /* Frob an ECOFF symbol. Small common symbols go into a special
3612 .scommon section rather than bfd_com_section. */
3615 ecoff_frob_symbol (sym
)
3618 if (S_IS_COMMON (sym
)
3619 && S_GET_VALUE (sym
) > 0
3620 && S_GET_VALUE (sym
) <= bfd_get_gp_size (stdoutput
))
3622 static asection scom_section
;
3623 static asymbol scom_symbol
;
3625 /* We must construct a fake section similar to bfd_com_section
3626 but with the name .scommon. */
3627 if (scom_section
.name
== NULL
)
3629 scom_section
= bfd_com_section
;
3630 scom_section
.name
= ".scommon";
3631 scom_section
.output_section
= &scom_section
;
3632 scom_section
.symbol
= &scom_symbol
;
3633 scom_section
.symbol_ptr_ptr
= &scom_section
.symbol
;
3634 scom_symbol
= *bfd_com_section
.symbol
;
3635 scom_symbol
.name
= ".scommon";
3636 scom_symbol
.section
= &scom_section
;
3638 S_SET_SEGMENT (sym
, &scom_section
);
3641 /* Double check weak symbols. */
3642 if (sym
->bsym
->flags
& BSF_WEAK
)
3644 if (S_IS_COMMON (sym
))
3645 as_bad ("Symbol `%s' can not be both weak and common",
3650 /* Add bytes to the symbolic information buffer. */
3653 ecoff_add_bytes (buf
, bufend
, bufptr
, need
)
3663 need
-= *bufend
- bufptr
;
3664 if (need
< PAGE_SIZE
)
3666 want
= (*bufend
- *buf
) + need
;
3667 *buf
= xrealloc (*buf
, want
);
3668 *bufend
= *buf
+ want
;
3672 /* Adjust the symbolic information buffer to the alignment required
3673 for the ECOFF target debugging information. */
3675 static unsigned long
3676 ecoff_padding_adjust (backend
, buf
, bufend
, offset
, bufptrptr
)
3677 const struct ecoff_debug_swap
*backend
;
3680 unsigned long offset
;
3683 bfd_size_type align
;
3685 align
= backend
->debug_align
;
3686 if ((offset
& (align
- 1)) != 0)
3690 add
= align
- (offset
& (align
- 1));
3691 if (*bufend
- (*buf
+ offset
) < add
)
3692 (void) ecoff_add_bytes (buf
, bufend
, *buf
+ offset
, add
);
3693 memset (*buf
+ offset
, 0, add
);
3695 if (bufptrptr
!= (char **) NULL
)
3696 *bufptrptr
= *buf
+ offset
;
3702 /* Build the line number information. */
3704 static unsigned long
3705 ecoff_build_lineno (backend
, buf
, bufend
, offset
, linecntptr
)
3706 const struct ecoff_debug_swap
*backend
;
3709 unsigned long offset
;
3713 register lineno_list_t
*l
;
3714 lineno_list_t
*last
;
3720 lineno_list_t first
;
3722 if (linecntptr
!= (long *) NULL
)
3725 bufptr
= *buf
+ offset
;
3727 file
= (efdr_t
*) NULL
;
3728 proc
= (proc_t
*) NULL
;
3729 last
= (lineno_list_t
*) NULL
;
3734 /* For some reason the address of the first procedure is ignored
3735 when reading line numbers. This doesn't matter if the address of
3736 the first procedure is 0, but when gcc is generating MIPS
3737 embedded PIC code, it will put strings in the .text section
3738 before the first procedure. We cope by inserting a dummy line if
3739 the address of the first procedure is not 0. Hopefully this
3740 won't screw things up too badly. */
3741 if (first_proc_ptr
!= (proc_t
*) NULL
3742 && first_lineno
!= (lineno_list_t
*) NULL
3743 && ((S_GET_VALUE (first_proc_ptr
->sym
->as_sym
)
3744 + bfd_get_section_vma (stdoutput
,
3745 S_GET_SEGMENT (first_proc_ptr
->sym
->as_sym
)))
3748 first
.file
= first_lineno
->file
;
3749 first
.proc
= first_lineno
->proc
;
3750 first
.frag
= &zero_address_frag
;
3754 first
.next
= first_lineno
;
3755 first_lineno
= &first
;
3758 for (l
= first_lineno
; l
!= (lineno_list_t
*) NULL
; l
= l
->next
)
3763 /* Get the offset to the memory address of the next line number
3764 (in words). Do this first, so that we can skip ahead to the
3765 next useful line number entry. */
3766 if (l
->next
== (lineno_list_t
*) NULL
)
3768 /* We want a count of zero, but it will be decremented
3769 before it is used. */
3772 else if (l
->next
->frag
->fr_address
+ l
->next
->paddr
3773 > l
->frag
->fr_address
+ l
->paddr
)
3775 count
= ((l
->next
->frag
->fr_address
+ l
->next
->paddr
3776 - (l
->frag
->fr_address
+ l
->paddr
))
3781 /* Don't change last, so we still get the right delta. */
3785 if (l
->file
!= file
|| l
->proc
!= proc
)
3787 if (l
->proc
!= proc
&& proc
!= (proc_t
*) NULL
)
3788 proc
->pdr
.lnHigh
= last
->lineno
;
3789 if (l
->file
!= file
&& file
!= (efdr_t
*) NULL
)
3791 file
->fdr
.cbLine
= c
- file
->fdr
.cbLineOffset
;
3792 file
->fdr
.cline
= totcount
+ count
;
3793 if (linecntptr
!= (long *) NULL
)
3794 *linecntptr
+= totcount
+ count
;
3798 if (l
->file
!= file
)
3800 efdr_t
*last_file
= file
;
3803 if (last_file
!= (efdr_t
*) NULL
)
3805 = last_file
->fdr
.ilineBase
+ last_file
->fdr
.cline
;
3807 file
->fdr
.ilineBase
= 0;
3808 file
->fdr
.cbLineOffset
= c
;
3810 if (l
->proc
!= proc
)
3813 if (proc
!= (proc_t
*) NULL
)
3815 proc
->pdr
.lnLow
= l
->lineno
;
3816 proc
->pdr
.cbLineOffset
= c
- file
->fdr
.cbLineOffset
;
3817 proc
->pdr
.iline
= totcount
;
3821 last
= (lineno_list_t
*) NULL
;
3826 /* Get the offset to this line number. */
3827 if (last
== (lineno_list_t
*) NULL
)
3830 delta
= l
->lineno
- last
->lineno
;
3832 /* Put in the offset to this line number. */
3837 /* 1 is added to each count read. */
3839 /* We can only adjust the word count by up to 15 words at a
3851 if (delta
>= -7 && delta
<= 7)
3853 if (bufptr
>= *bufend
)
3854 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 1);
3855 *bufptr
++ = setcount
+ (delta
<< 4);
3863 if (*bufend
- bufptr
< 3)
3864 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 3);
3865 *bufptr
++ = setcount
+ (8 << 4);
3866 if (delta
< -0x8000)
3871 else if (delta
> 0x7fff)
3881 *bufptr
++ = set
>> 8;
3882 *bufptr
++ = set
& 0xffff;
3887 /* Finish adjusting the count. */
3890 if (bufptr
>= *bufend
)
3891 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 1);
3892 /* 1 is added to each count read. */
3911 if (proc
!= (proc_t
*) NULL
)
3912 proc
->pdr
.lnHigh
= last
->lineno
;
3913 if (file
!= (efdr_t
*) NULL
)
3915 file
->fdr
.cbLine
= c
- file
->fdr
.cbLineOffset
;
3916 file
->fdr
.cline
= totcount
;
3919 if (linecntptr
!= (long *) NULL
)
3920 *linecntptr
+= totcount
;
3922 c
= ecoff_padding_adjust (backend
, buf
, bufend
, c
, &bufptr
);
3927 /* Build and swap out the symbols. */
3929 static unsigned long
3930 ecoff_build_symbols (backend
, buf
, bufend
, offset
)
3931 const struct ecoff_debug_swap
*backend
;
3934 unsigned long offset
;
3936 const bfd_size_type external_sym_size
= backend
->external_sym_size
;
3937 void (* const swap_sym_out
) PARAMS ((bfd
*, const SYMR
*, PTR
))
3938 = backend
->swap_sym_out
;
3941 vlinks_t
*file_link
;
3943 sym_out
= *buf
+ offset
;
3947 /* The symbols are stored by file. */
3948 for (file_link
= file_desc
.first
;
3949 file_link
!= (vlinks_t
*) NULL
;
3950 file_link
= file_link
->next
)
3957 if (file_link
->next
== (vlinks_t
*) NULL
)
3958 fil_cnt
= file_desc
.objects_last_page
;
3960 fil_cnt
= file_desc
.objects_per_page
;
3961 fil_ptr
= file_link
->datum
->file
;
3962 fil_end
= fil_ptr
+ fil_cnt
;
3963 for (; fil_ptr
< fil_end
; fil_ptr
++)
3967 fil_ptr
->fdr
.isymBase
= isym
;
3969 for (sym_link
= fil_ptr
->symbols
.first
;
3970 sym_link
!= (vlinks_t
*) NULL
;
3971 sym_link
= sym_link
->next
)
3974 localsym_t
*sym_ptr
;
3975 localsym_t
*sym_end
;
3977 if (sym_link
->next
== (vlinks_t
*) NULL
)
3978 sym_cnt
= fil_ptr
->symbols
.objects_last_page
;
3980 sym_cnt
= fil_ptr
->symbols
.objects_per_page
;
3981 sym_ptr
= sym_link
->datum
->sym
;
3982 sym_end
= sym_ptr
+ sym_cnt
;
3983 for (; sym_ptr
< sym_end
; sym_ptr
++)
3989 know (sym_ptr
->file_ptr
== fil_ptr
);
3991 /* If there is no associated gas symbol, then this
3992 is a pure debugging symbol. We have already
3993 added the name (if any) to fil_ptr->strings.
3994 Otherwise we must decide whether this is an
3995 external or a local symbol (actually, it may be
3996 both if the local provides additional debugging
3997 information for the external). */
3999 as_sym
= sym_ptr
->as_sym
;
4000 if (as_sym
!= (symbolS
*) NULL
)
4004 /* The value of a block start symbol is the
4005 offset from the start of the procedure. For
4006 other symbols we just use the gas value (but
4007 we must offset it by the vma of the section,
4008 just as BFD does, because BFD will not see
4010 if (sym_ptr
->ecoff_sym
.asym
.st
== (int) st_Block
4011 && sym_ptr
->ecoff_sym
.asym
.sc
== (int) sc_Text
)
4015 know (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
);
4016 begin_sym
= sym_ptr
->proc_ptr
->sym
->as_sym
;
4017 if (S_GET_SEGMENT (as_sym
)
4018 != S_GET_SEGMENT (begin_sym
))
4019 as_warn (".begin/.bend in different segments");
4020 sym_ptr
->ecoff_sym
.asym
.value
=
4021 S_GET_VALUE (as_sym
) - S_GET_VALUE (begin_sym
);
4024 sym_ptr
->ecoff_sym
.asym
.value
=
4025 (S_GET_VALUE (as_sym
)
4026 + bfd_get_section_vma (stdoutput
,
4027 S_GET_SEGMENT (as_sym
))
4030 sym_ptr
->ecoff_sym
.weakext
= S_IS_WEAK (as_sym
);
4032 /* Set st_Proc to st_StaticProc for local
4034 if (sym_ptr
->ecoff_sym
.asym
.st
== st_Proc
4035 && S_IS_DEFINED (as_sym
)
4036 && ! S_IS_EXTERNAL (as_sym
)
4037 && ! S_IS_WEAK (as_sym
))
4038 sym_ptr
->ecoff_sym
.asym
.st
= st_StaticProc
;
4040 /* Get the type and storage class based on where
4041 the symbol actually wound up. Traditionally,
4042 N_LBRAC and N_RBRAC are *not* relocated. */
4043 indx
= sym_ptr
->ecoff_sym
.asym
.index
;
4044 if (sym_ptr
->ecoff_sym
.asym
.st
== st_Nil
4045 && sym_ptr
->ecoff_sym
.asym
.sc
== sc_Nil
4046 && (! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
)
4047 || ((ECOFF_UNMARK_STAB (indx
) != N_LBRAC
)
4048 && (ECOFF_UNMARK_STAB (indx
) != N_RBRAC
))))
4051 const char *segname
;
4055 seg
= S_GET_SEGMENT (as_sym
);
4056 segname
= segment_name (seg
);
4058 if (! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
)
4059 && (S_IS_EXTERNAL (as_sym
)
4060 || S_IS_WEAK (as_sym
)
4061 || ! S_IS_DEFINED (as_sym
)))
4063 if ((as_sym
->bsym
->flags
& BSF_FUNCTION
) != 0)
4068 else if (seg
== text_section
)
4073 if (! S_IS_DEFINED (as_sym
))
4075 if (as_sym
->ecoff_extern_size
== 0
4076 || (as_sym
->ecoff_extern_size
4077 > bfd_get_gp_size (stdoutput
)))
4082 sym_ptr
->ecoff_sym
.asym
.value
=
4083 as_sym
->ecoff_extern_size
;
4086 S_SET_SIZE (as_sym
, as_sym
->ecoff_extern_size
);
4089 else if (S_IS_COMMON (as_sym
))
4091 if (S_GET_VALUE (as_sym
) > 0
4092 && (S_GET_VALUE (as_sym
)
4093 <= bfd_get_gp_size (stdoutput
)))
4098 else if (seg
== text_section
)
4100 else if (seg
== data_section
)
4102 else if (strcmp (segname
, ".rdata") == 0
4103 || strcmp (segname
, ".rodata") == 0)
4105 else if (strcmp (segname
, ".sdata") == 0)
4107 else if (seg
== bss_section
)
4109 else if (strcmp (segname
, ".sbss") == 0)
4111 else if (seg
== &bfd_abs_section
)
4115 /* This must be a user named section.
4116 This is not possible in ECOFF, but it
4121 sym_ptr
->ecoff_sym
.asym
.st
= (int) st
;
4122 sym_ptr
->ecoff_sym
.asym
.sc
= (int) sc
;
4125 /* This is just an external symbol if it is
4126 outside a procedure and it has a type.
4127 FIXME: g++ will generate symbols which have
4128 different names in the debugging information
4129 than the actual symbol. Should we handle
4131 if ((S_IS_EXTERNAL (as_sym
)
4132 || S_IS_WEAK (as_sym
)
4133 || ! S_IS_DEFINED (as_sym
))
4134 && sym_ptr
->proc_ptr
== (proc_t
*) NULL
4135 && sym_ptr
->ecoff_sym
.asym
.st
!= (int) st_Nil
4136 && ! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
))
4139 /* This is just an external symbol if it is a
4141 if (S_IS_COMMON (as_sym
))
4144 /* If an st_end symbol has an associated gas
4145 symbol, then it is a local label created for
4146 a .bend or .end directive. Stabs line
4147 numbers will have \001 in the names. */
4149 && sym_ptr
->ecoff_sym
.asym
.st
!= st_End
4150 && strchr (sym_ptr
->name
, '\001') == 0)
4151 sym_ptr
->ecoff_sym
.asym
.iss
=
4152 add_string (&fil_ptr
->strings
,
4158 /* We now know the index of this symbol; fill in
4159 locations that have been waiting for that
4161 if (sym_ptr
->begin_ptr
!= (localsym_t
*) NULL
)
4163 localsym_t
*begin_ptr
;
4167 begin_ptr
= sym_ptr
->begin_ptr
;
4168 know (begin_ptr
->sym_index
!= -1);
4169 sym_ptr
->ecoff_sym
.asym
.index
= begin_ptr
->sym_index
;
4170 if (sym_ptr
->ecoff_sym
.asym
.sc
!= (int) sc_Info
)
4171 sym_ptr
->ecoff_sym
.asym
.iss
=
4172 begin_ptr
->ecoff_sym
.asym
.iss
;
4174 begin_type
= begin_ptr
->ecoff_sym
.asym
.st
;
4175 if (begin_type
== st_File
4176 || begin_type
== st_Block
)
4178 begin_ptr
->ecoff_sym
.asym
.index
=
4179 isym
- ifilesym
+ 1;
4180 (*swap_sym_out
) (stdoutput
,
4181 &begin_ptr
->ecoff_sym
.asym
,
4184 + (begin_ptr
->sym_index
4185 * external_sym_size
)));
4189 know (begin_ptr
->index_ptr
!= (aux_t
*) NULL
);
4190 begin_ptr
->index_ptr
->data
.isym
=
4191 isym
- ifilesym
+ 1;
4194 /* The value of the symbol marking the end of a
4195 procedure is the size of the procedure. The
4196 value of the symbol marking the end of a
4197 block is the offset from the start of the
4198 procedure to the block. */
4199 if (begin_type
== st_Proc
4200 || begin_type
== st_StaticProc
)
4202 know (as_sym
!= (symbolS
*) NULL
);
4203 know (begin_ptr
->as_sym
!= (symbolS
*) NULL
);
4204 if (S_GET_SEGMENT (as_sym
)
4205 != S_GET_SEGMENT (begin_ptr
->as_sym
))
4206 as_warn (".begin/.bend in different segments");
4207 sym_ptr
->ecoff_sym
.asym
.value
=
4208 (S_GET_VALUE (as_sym
)
4209 - S_GET_VALUE (begin_ptr
->as_sym
));
4211 /* If the size is odd, this is probably a
4212 mips16 function; force it to be even. */
4213 if ((sym_ptr
->ecoff_sym
.asym
.value
& 1) != 0)
4214 ++sym_ptr
->ecoff_sym
.asym
.value
;
4217 S_SET_SIZE (begin_ptr
->as_sym
,
4218 sym_ptr
->ecoff_sym
.asym
.value
);
4221 else if (begin_type
== st_Block
4222 && sym_ptr
->ecoff_sym
.asym
.sc
!= (int) sc_Info
)
4226 know (as_sym
!= (symbolS
*) NULL
);
4227 know (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
);
4228 begin_sym
= sym_ptr
->proc_ptr
->sym
->as_sym
;
4229 if (S_GET_SEGMENT (as_sym
)
4230 != S_GET_SEGMENT (begin_sym
))
4231 as_warn (".begin/.bend in different segments");
4232 sym_ptr
->ecoff_sym
.asym
.value
=
4233 S_GET_VALUE (as_sym
) - S_GET_VALUE (begin_sym
);
4237 for (f
= sym_ptr
->forward_ref
;
4238 f
!= (forward_t
*) NULL
;
4242 f
->ifd_ptr
->data
.isym
= fil_ptr
->file_index
;
4243 f
->index_ptr
->data
.rndx
.index
= isym
- ifilesym
;
4248 if (*bufend
- sym_out
< external_sym_size
)
4249 sym_out
= ecoff_add_bytes (buf
, bufend
,
4252 (*swap_sym_out
) (stdoutput
, &sym_ptr
->ecoff_sym
.asym
,
4254 sym_out
+= external_sym_size
;
4256 sym_ptr
->sym_index
= isym
;
4258 if (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
4259 && sym_ptr
->proc_ptr
->sym
== sym_ptr
)
4260 sym_ptr
->proc_ptr
->pdr
.isym
= isym
- ifilesym
;
4265 /* Record the local symbol index and file number in
4266 case this is an external symbol. Note that this
4267 destroys the asym.index field. */
4268 if (as_sym
!= (symbolS
*) NULL
4269 && as_sym
->ecoff_symbol
== sym_ptr
)
4271 if ((sym_ptr
->ecoff_sym
.asym
.st
== st_Proc
4272 || sym_ptr
->ecoff_sym
.asym
.st
== st_StaticProc
)
4274 sym_ptr
->ecoff_sym
.asym
.index
= isym
- ifilesym
- 1;
4275 sym_ptr
->ecoff_sym
.ifd
= fil_ptr
->file_index
;
4277 /* Don't try to merge an FDR which has an
4278 external symbol attached to it. */
4279 if (S_IS_EXTERNAL (as_sym
) || S_IS_WEAK (as_sym
))
4280 fil_ptr
->fdr
.fMerge
= 0;
4284 fil_ptr
->fdr
.csym
= isym
- fil_ptr
->fdr
.isymBase
;
4288 return offset
+ isym
* external_sym_size
;
4291 /* Swap out the procedure information. */
4293 static unsigned long
4294 ecoff_build_procs (backend
, buf
, bufend
, offset
)
4295 const struct ecoff_debug_swap
*backend
;
4298 unsigned long offset
;
4300 const bfd_size_type external_pdr_size
= backend
->external_pdr_size
;
4301 void (* const swap_pdr_out
) PARAMS ((bfd
*, const PDR
*, PTR
))
4302 = backend
->swap_pdr_out
;
4305 vlinks_t
*file_link
;
4307 pdr_out
= *buf
+ offset
;
4311 /* The procedures are stored by file. */
4312 for (file_link
= file_desc
.first
;
4313 file_link
!= (vlinks_t
*) NULL
;
4314 file_link
= file_link
->next
)
4320 if (file_link
->next
== (vlinks_t
*) NULL
)
4321 fil_cnt
= file_desc
.objects_last_page
;
4323 fil_cnt
= file_desc
.objects_per_page
;
4324 fil_ptr
= file_link
->datum
->file
;
4325 fil_end
= fil_ptr
+ fil_cnt
;
4326 for (; fil_ptr
< fil_end
; fil_ptr
++)
4328 vlinks_t
*proc_link
;
4331 fil_ptr
->fdr
.ipdFirst
= iproc
;
4333 for (proc_link
= fil_ptr
->procs
.first
;
4334 proc_link
!= (vlinks_t
*) NULL
;
4335 proc_link
= proc_link
->next
)
4341 if (proc_link
->next
== (vlinks_t
*) NULL
)
4342 prc_cnt
= fil_ptr
->procs
.objects_last_page
;
4344 prc_cnt
= fil_ptr
->procs
.objects_per_page
;
4345 proc_ptr
= proc_link
->datum
->proc
;
4346 proc_end
= proc_ptr
+ prc_cnt
;
4347 for (; proc_ptr
< proc_end
; proc_ptr
++)
4352 adr_sym
= proc_ptr
->sym
->as_sym
;
4353 adr
= (S_GET_VALUE (adr_sym
)
4354 + bfd_get_section_vma (stdoutput
,
4355 S_GET_SEGMENT (adr_sym
)));
4358 /* This code used to force the adr of the very
4359 first fdr to be 0. However, the native tools
4360 don't do that, and I can't remember why it
4361 used to work that way, so I took it out. */
4362 fil_ptr
->fdr
.adr
= adr
;
4365 proc_ptr
->pdr
.adr
= adr
- fil_ptr
->fdr
.adr
;
4366 if (*bufend
- pdr_out
< external_pdr_size
)
4367 pdr_out
= ecoff_add_bytes (buf
, bufend
,
4370 (*swap_pdr_out
) (stdoutput
, &proc_ptr
->pdr
, pdr_out
);
4371 pdr_out
+= external_pdr_size
;
4375 fil_ptr
->fdr
.cpd
= iproc
- fil_ptr
->fdr
.ipdFirst
;
4379 return offset
+ iproc
* external_pdr_size
;
4382 /* Swap out the aux information. */
4384 static unsigned long
4385 ecoff_build_aux (backend
, buf
, bufend
, offset
)
4386 const struct ecoff_debug_swap
*backend
;
4389 unsigned long offset
;
4392 union aux_ext
*aux_out
;
4394 vlinks_t
*file_link
;
4396 bigendian
= bfd_big_endian (stdoutput
);
4398 aux_out
= (union aux_ext
*) (*buf
+ offset
);
4402 /* The aux entries are stored by file. */
4403 for (file_link
= file_desc
.first
;
4404 file_link
!= (vlinks_t
*) NULL
;
4405 file_link
= file_link
->next
)
4411 if (file_link
->next
== (vlinks_t
*) NULL
)
4412 fil_cnt
= file_desc
.objects_last_page
;
4414 fil_cnt
= file_desc
.objects_per_page
;
4415 fil_ptr
= file_link
->datum
->file
;
4416 fil_end
= fil_ptr
+ fil_cnt
;
4417 for (; fil_ptr
< fil_end
; fil_ptr
++)
4421 fil_ptr
->fdr
.fBigendian
= bigendian
;
4422 fil_ptr
->fdr
.iauxBase
= iaux
;
4423 for (aux_link
= fil_ptr
->aux_syms
.first
;
4424 aux_link
!= (vlinks_t
*) NULL
;
4425 aux_link
= aux_link
->next
)
4431 if (aux_link
->next
== (vlinks_t
*) NULL
)
4432 aux_cnt
= fil_ptr
->aux_syms
.objects_last_page
;
4434 aux_cnt
= fil_ptr
->aux_syms
.objects_per_page
;
4435 aux_ptr
= aux_link
->datum
->aux
;
4436 aux_end
= aux_ptr
+ aux_cnt
;
4437 for (; aux_ptr
< aux_end
; aux_ptr
++)
4439 if (*bufend
- (char *) aux_out
< sizeof (union aux_ext
))
4440 aux_out
= ((union aux_ext
*)
4441 ecoff_add_bytes (buf
, bufend
,
4443 sizeof (union aux_ext
)));
4444 switch (aux_ptr
->type
)
4447 (*backend
->swap_tir_out
) (bigendian
,
4452 (*backend
->swap_rndx_out
) (bigendian
,
4453 &aux_ptr
->data
.rndx
,
4457 AUX_PUT_DNLOW (bigendian
, aux_ptr
->data
.dnLow
,
4461 AUX_PUT_DNHIGH (bigendian
, aux_ptr
->data
.dnHigh
,
4465 AUX_PUT_ISYM (bigendian
, aux_ptr
->data
.isym
,
4469 AUX_PUT_ISS (bigendian
, aux_ptr
->data
.iss
,
4473 AUX_PUT_WIDTH (bigendian
, aux_ptr
->data
.width
,
4477 AUX_PUT_COUNT (bigendian
, aux_ptr
->data
.count
,
4486 fil_ptr
->fdr
.caux
= iaux
- fil_ptr
->fdr
.iauxBase
;
4490 return ecoff_padding_adjust (backend
, buf
, bufend
,
4491 offset
+ iaux
* sizeof (union aux_ext
),
4495 /* Copy out the strings from a varray_t. This returns the number of
4496 bytes copied, rather than the new offset. */
4498 static unsigned long
4499 ecoff_build_strings (buf
, bufend
, offset
, vp
)
4502 unsigned long offset
;
4509 str_out
= *buf
+ offset
;
4513 for (str_link
= vp
->first
;
4514 str_link
!= (vlinks_t
*) NULL
;
4515 str_link
= str_link
->next
)
4517 unsigned long str_cnt
;
4519 if (str_link
->next
== (vlinks_t
*) NULL
)
4520 str_cnt
= vp
->objects_last_page
;
4522 str_cnt
= vp
->objects_per_page
;
4524 if (*bufend
- str_out
< str_cnt
)
4525 str_out
= ecoff_add_bytes (buf
, bufend
, str_out
, str_cnt
);
4527 memcpy (str_out
, str_link
->datum
->byte
, str_cnt
);
4535 /* Dump out the local strings. */
4537 static unsigned long
4538 ecoff_build_ss (backend
, buf
, bufend
, offset
)
4539 const struct ecoff_debug_swap
*backend
;
4542 unsigned long offset
;
4545 vlinks_t
*file_link
;
4549 for (file_link
= file_desc
.first
;
4550 file_link
!= (vlinks_t
*) NULL
;
4551 file_link
= file_link
->next
)
4557 if (file_link
->next
== (vlinks_t
*) NULL
)
4558 fil_cnt
= file_desc
.objects_last_page
;
4560 fil_cnt
= file_desc
.objects_per_page
;
4561 fil_ptr
= file_link
->datum
->file
;
4562 fil_end
= fil_ptr
+ fil_cnt
;
4563 for (; fil_ptr
< fil_end
; fil_ptr
++)
4567 fil_ptr
->fdr
.issBase
= iss
;
4568 ss_cnt
= ecoff_build_strings (buf
, bufend
, offset
+ iss
,
4570 fil_ptr
->fdr
.cbSs
= ss_cnt
;
4575 return ecoff_padding_adjust (backend
, buf
, bufend
, offset
+ iss
,
4579 /* Swap out the file descriptors. */
4581 static unsigned long
4582 ecoff_build_fdr (backend
, buf
, bufend
, offset
)
4583 const struct ecoff_debug_swap
*backend
;
4586 unsigned long offset
;
4588 const bfd_size_type external_fdr_size
= backend
->external_fdr_size
;
4589 void (* const swap_fdr_out
) PARAMS ((bfd
*, const FDR
*, PTR
))
4590 = backend
->swap_fdr_out
;
4593 vlinks_t
*file_link
;
4597 fdr_out
= *buf
+ offset
;
4599 for (file_link
= file_desc
.first
;
4600 file_link
!= (vlinks_t
*) NULL
;
4601 file_link
= file_link
->next
)
4607 if (file_link
->next
== (vlinks_t
*) NULL
)
4608 fil_cnt
= file_desc
.objects_last_page
;
4610 fil_cnt
= file_desc
.objects_per_page
;
4611 fil_ptr
= file_link
->datum
->file
;
4612 fil_end
= fil_ptr
+ fil_cnt
;
4613 for (; fil_ptr
< fil_end
; fil_ptr
++)
4615 if (*bufend
- fdr_out
< external_fdr_size
)
4616 fdr_out
= ecoff_add_bytes (buf
, bufend
, fdr_out
,
4618 (*swap_fdr_out
) (stdoutput
, &fil_ptr
->fdr
, fdr_out
);
4619 fdr_out
+= external_fdr_size
;
4624 return offset
+ ifile
* external_fdr_size
;
4627 /* Set up the external symbols. These are supposed to be handled by
4628 the backend. This routine just gets the right information and
4629 calls a backend function to deal with it. */
4634 register symbolS
*sym
;
4636 for (sym
= symbol_rootP
; sym
!= (symbolS
*) NULL
; sym
= symbol_next (sym
))
4638 if (sym
->ecoff_symbol
== NULL
)
4641 /* If this is a local symbol, then force the fields to zero. */
4642 if (! S_IS_EXTERNAL (sym
)
4643 && ! S_IS_WEAK (sym
)
4644 && S_IS_DEFINED (sym
))
4646 sym
->ecoff_symbol
->ecoff_sym
.asym
.value
= 0;
4647 sym
->ecoff_symbol
->ecoff_sym
.asym
.st
= (int) st_Nil
;
4648 sym
->ecoff_symbol
->ecoff_sym
.asym
.sc
= (int) sc_Nil
;
4649 sym
->ecoff_symbol
->ecoff_sym
.asym
.index
= indexNil
;
4652 obj_ecoff_set_ext (sym
, &sym
->ecoff_symbol
->ecoff_sym
);
4656 /* Build the ECOFF debugging information. */
4659 ecoff_build_debug (hdr
, bufp
, backend
)
4662 const struct ecoff_debug_swap
*backend
;
4664 const bfd_size_type external_pdr_size
= backend
->external_pdr_size
;
4669 efdr_t
*hold_file_ptr
;
4670 proc_t
* hold_proc_ptr
;
4674 unsigned long offset
;
4676 /* Make sure we have a file. */
4677 if (first_file
== (efdr_t
*) NULL
)
4678 add_file ((const char *) NULL
, 0, 1);
4680 /* Handle any top level tags. */
4681 for (ptag
= top_tag_head
->first_tag
;
4682 ptag
!= (tag_t
*) NULL
;
4685 if (ptag
->forward_ref
!= (forward_t
*) NULL
)
4686 add_unknown_tag (ptag
);
4688 ptag_next
= ptag
->same_block
;
4689 ptag
->hash_ptr
->tag_ptr
= ptag
->same_name
;
4693 free_thead (top_tag_head
);
4695 /* Look through the symbols. Add debugging information for each
4696 symbol that has not already received it. */
4697 hold_file_ptr
= cur_file_ptr
;
4698 hold_proc_ptr
= cur_proc_ptr
;
4699 cur_proc_ptr
= (proc_t
*) NULL
;
4700 for (sym
= symbol_rootP
; sym
!= (symbolS
*) NULL
; sym
= symbol_next (sym
))
4702 if (sym
->ecoff_symbol
!= NULL
4703 || sym
->ecoff_file
== (efdr_t
*) NULL
4704 || (sym
->bsym
->flags
& BSF_SECTION_SYM
) != 0)
4707 cur_file_ptr
= sym
->ecoff_file
;
4708 add_ecoff_symbol ((const char *) NULL
, st_Nil
, sc_Nil
, sym
,
4709 (bfd_vma
) 0, S_GET_VALUE (sym
), indexNil
);
4711 cur_proc_ptr
= hold_proc_ptr
;
4712 cur_file_ptr
= hold_file_ptr
;
4714 /* Output an ending symbol for all the files. We have to do this
4715 here for the last file, so we may as well do it for all of the
4718 for (fil_ptr
= first_file
;
4719 fil_ptr
!= (efdr_t
*) NULL
;
4720 fil_ptr
= fil_ptr
->next_file
)
4722 cur_file_ptr
= fil_ptr
;
4723 while (cur_file_ptr
->cur_scope
!= (scope_t
*) NULL
4724 && cur_file_ptr
->cur_scope
->prev
!= (scope_t
*) NULL
)
4726 cur_file_ptr
->cur_scope
= cur_file_ptr
->cur_scope
->prev
;
4727 if (! end_warning
&& ! cur_file_ptr
->fake
)
4729 as_warn ("Missing .end or .bend at end of file");
4733 if (cur_file_ptr
->cur_scope
!= (scope_t
*) NULL
)
4734 (void) add_ecoff_symbol ((const char *) NULL
,
4742 /* Build the symbolic information. */
4744 buf
= xmalloc (PAGE_SIZE
);
4745 bufend
= buf
+ PAGE_SIZE
;
4747 /* Build the line number information. */
4748 hdr
->cbLineOffset
= offset
;
4749 offset
= ecoff_build_lineno (backend
, &buf
, &bufend
, offset
,
4751 hdr
->cbLine
= offset
- hdr
->cbLineOffset
;
4753 /* We don't use dense numbers at all. */
4755 hdr
->cbDnOffset
= 0;
4757 /* We can't build the PDR table until we have built the symbols,
4758 because a PDR contains a symbol index. However, we set aside
4759 space at this point. */
4760 hdr
->ipdMax
= proc_cnt
;
4761 hdr
->cbPdOffset
= offset
;
4762 if (bufend
- (buf
+ offset
) < proc_cnt
* external_pdr_size
)
4763 (void) ecoff_add_bytes (&buf
, &bufend
, buf
+ offset
,
4764 proc_cnt
* external_pdr_size
);
4765 offset
+= proc_cnt
* external_pdr_size
;
4767 /* Build the local symbols. */
4768 hdr
->cbSymOffset
= offset
;
4769 offset
= ecoff_build_symbols (backend
, &buf
, &bufend
, offset
);
4770 hdr
->isymMax
= (offset
- hdr
->cbSymOffset
) / backend
->external_sym_size
;
4772 /* Building the symbols initializes the symbol index in the PDR's.
4773 Now we can swap out the PDR's. */
4774 (void) ecoff_build_procs (backend
, &buf
, &bufend
, hdr
->cbPdOffset
);
4776 /* We don't use optimization symbols. */
4778 hdr
->cbOptOffset
= 0;
4780 /* Swap out the auxiliary type information. */
4781 hdr
->cbAuxOffset
= offset
;
4782 offset
= ecoff_build_aux (backend
, &buf
, &bufend
, offset
);
4783 hdr
->iauxMax
= (offset
- hdr
->cbAuxOffset
) / sizeof (union aux_ext
);
4785 /* Copy out the local strings. */
4786 hdr
->cbSsOffset
= offset
;
4787 offset
= ecoff_build_ss (backend
, &buf
, &bufend
, offset
);
4788 hdr
->issMax
= offset
- hdr
->cbSsOffset
;
4790 /* We don't use relative file descriptors. */
4792 hdr
->cbRfdOffset
= 0;
4794 /* Swap out the file descriptors. */
4795 hdr
->cbFdOffset
= offset
;
4796 offset
= ecoff_build_fdr (backend
, &buf
, &bufend
, offset
);
4797 hdr
->ifdMax
= (offset
- hdr
->cbFdOffset
) / backend
->external_fdr_size
;
4799 /* Set up the external symbols, which are handled by the BFD back
4802 hdr
->cbSsExtOffset
= 0;
4804 hdr
->cbExtOffset
= 0;
4807 know ((offset
& (backend
->debug_align
- 1)) == 0);
4809 /* FIXME: This value should be determined from the .verstamp directive,
4810 with reasonable defaults in config files. */
4812 hdr
->vstamp
= 0x030b;
4814 hdr
->vstamp
= 0x020b;
4821 /* Allocate a cluster of pages. */
4823 #ifndef MALLOC_CHECK
4826 allocate_cluster (npages
)
4827 unsigned long npages
;
4829 register page_type
*value
= (page_type
*) xmalloc (npages
* PAGE_USIZE
);
4833 fprintf (stderr
, "\talloc\tnpages = %d, value = 0x%.8x\n", npages
, value
);
4836 memset (value
, 0, npages
* PAGE_USIZE
);
4842 static page_type
*cluster_ptr
= NULL
;
4843 static unsigned long pages_left
= 0;
4845 #endif /* MALLOC_CHECK */
4847 /* Allocate one page (which is initialized to 0). */
4852 #ifndef MALLOC_CHECK
4854 if (pages_left
== 0)
4856 pages_left
= MAX_CLUSTER_PAGES
;
4857 cluster_ptr
= allocate_cluster (pages_left
);
4861 return cluster_ptr
++;
4863 #else /* MALLOC_CHECK */
4867 ptr
= xmalloc (PAGE_USIZE
);
4868 memset (ptr
, 0, PAGE_USIZE
);
4871 #endif /* MALLOC_CHECK */
4874 /* Allocate scoping information. */
4879 register scope_t
*ptr
;
4880 static scope_t initial_scope
;
4882 #ifndef MALLOC_CHECK
4884 ptr
= alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
;
4885 if (ptr
!= (scope_t
*) NULL
)
4886 alloc_counts
[ (int)alloc_type_scope
].free_list
.f_scope
= ptr
->free
;
4889 register int unallocated
= alloc_counts
[(int)alloc_type_scope
].unallocated
;
4890 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_scope
].cur_page
;
4892 if (unallocated
== 0)
4894 unallocated
= PAGE_SIZE
/ sizeof (scope_t
);
4895 alloc_counts
[(int)alloc_type_scope
].cur_page
= cur_page
= allocate_page ();
4896 alloc_counts
[(int)alloc_type_scope
].total_pages
++;
4899 ptr
= &cur_page
->scope
[--unallocated
];
4900 alloc_counts
[(int)alloc_type_scope
].unallocated
= unallocated
;
4905 ptr
= (scope_t
*) xmalloc (sizeof (scope_t
));
4909 alloc_counts
[(int)alloc_type_scope
].total_alloc
++;
4910 *ptr
= initial_scope
;
4914 /* Free scoping information. */
4920 alloc_counts
[(int)alloc_type_scope
].total_free
++;
4922 #ifndef MALLOC_CHECK
4923 ptr
->free
= alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
;
4924 alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
= ptr
;
4930 /* Allocate links for pages in a virtual array. */
4935 register vlinks_t
*ptr
;
4936 static vlinks_t initial_vlinks
;
4938 #ifndef MALLOC_CHECK
4940 register int unallocated
= alloc_counts
[(int)alloc_type_vlinks
].unallocated
;
4941 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_vlinks
].cur_page
;
4943 if (unallocated
== 0)
4945 unallocated
= PAGE_SIZE
/ sizeof (vlinks_t
);
4946 alloc_counts
[(int)alloc_type_vlinks
].cur_page
= cur_page
= allocate_page ();
4947 alloc_counts
[(int)alloc_type_vlinks
].total_pages
++;
4950 ptr
= &cur_page
->vlinks
[--unallocated
];
4951 alloc_counts
[(int)alloc_type_vlinks
].unallocated
= unallocated
;
4955 ptr
= (vlinks_t
*) xmalloc (sizeof (vlinks_t
));
4959 alloc_counts
[(int)alloc_type_vlinks
].total_alloc
++;
4960 *ptr
= initial_vlinks
;
4964 /* Allocate string hash buckets. */
4969 register shash_t
*ptr
;
4970 static shash_t initial_shash
;
4972 #ifndef MALLOC_CHECK
4974 register int unallocated
= alloc_counts
[(int)alloc_type_shash
].unallocated
;
4975 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_shash
].cur_page
;
4977 if (unallocated
== 0)
4979 unallocated
= PAGE_SIZE
/ sizeof (shash_t
);
4980 alloc_counts
[(int)alloc_type_shash
].cur_page
= cur_page
= allocate_page ();
4981 alloc_counts
[(int)alloc_type_shash
].total_pages
++;
4984 ptr
= &cur_page
->shash
[--unallocated
];
4985 alloc_counts
[(int)alloc_type_shash
].unallocated
= unallocated
;
4989 ptr
= (shash_t
*) xmalloc (sizeof (shash_t
));
4993 alloc_counts
[(int)alloc_type_shash
].total_alloc
++;
4994 *ptr
= initial_shash
;
4998 /* Allocate type hash buckets. */
5003 register thash_t
*ptr
;
5004 static thash_t initial_thash
;
5006 #ifndef MALLOC_CHECK
5008 register int unallocated
= alloc_counts
[(int)alloc_type_thash
].unallocated
;
5009 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_thash
].cur_page
;
5011 if (unallocated
== 0)
5013 unallocated
= PAGE_SIZE
/ sizeof (thash_t
);
5014 alloc_counts
[(int)alloc_type_thash
].cur_page
= cur_page
= allocate_page ();
5015 alloc_counts
[(int)alloc_type_thash
].total_pages
++;
5018 ptr
= &cur_page
->thash
[--unallocated
];
5019 alloc_counts
[(int)alloc_type_thash
].unallocated
= unallocated
;
5023 ptr
= (thash_t
*) xmalloc (sizeof (thash_t
));
5027 alloc_counts
[(int)alloc_type_thash
].total_alloc
++;
5028 *ptr
= initial_thash
;
5032 /* Allocate structure, union, or enum tag information. */
5037 register tag_t
*ptr
;
5038 static tag_t initial_tag
;
5040 #ifndef MALLOC_CHECK
5042 ptr
= alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
;
5043 if (ptr
!= (tag_t
*) NULL
)
5044 alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
= ptr
->free
;
5047 register int unallocated
= alloc_counts
[(int)alloc_type_tag
].unallocated
;
5048 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_tag
].cur_page
;
5050 if (unallocated
== 0)
5052 unallocated
= PAGE_SIZE
/ sizeof (tag_t
);
5053 alloc_counts
[(int)alloc_type_tag
].cur_page
= cur_page
= allocate_page ();
5054 alloc_counts
[(int)alloc_type_tag
].total_pages
++;
5057 ptr
= &cur_page
->tag
[--unallocated
];
5058 alloc_counts
[(int)alloc_type_tag
].unallocated
= unallocated
;
5063 ptr
= (tag_t
*) xmalloc (sizeof (tag_t
));
5067 alloc_counts
[(int)alloc_type_tag
].total_alloc
++;
5072 /* Free scoping information. */
5078 alloc_counts
[(int)alloc_type_tag
].total_free
++;
5080 #ifndef MALLOC_CHECK
5081 ptr
->free
= alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
;
5082 alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
= ptr
;
5088 /* Allocate forward reference to a yet unknown tag. */
5093 register forward_t
*ptr
;
5094 static forward_t initial_forward
;
5096 #ifndef MALLOC_CHECK
5098 register int unallocated
= alloc_counts
[(int)alloc_type_forward
].unallocated
;
5099 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_forward
].cur_page
;
5101 if (unallocated
== 0)
5103 unallocated
= PAGE_SIZE
/ sizeof (forward_t
);
5104 alloc_counts
[(int)alloc_type_forward
].cur_page
= cur_page
= allocate_page ();
5105 alloc_counts
[(int)alloc_type_forward
].total_pages
++;
5108 ptr
= &cur_page
->forward
[--unallocated
];
5109 alloc_counts
[(int)alloc_type_forward
].unallocated
= unallocated
;
5113 ptr
= (forward_t
*) xmalloc (sizeof (forward_t
));
5117 alloc_counts
[(int)alloc_type_forward
].total_alloc
++;
5118 *ptr
= initial_forward
;
5122 /* Allocate head of type hash list. */
5127 register thead_t
*ptr
;
5128 static thead_t initial_thead
;
5130 #ifndef MALLOC_CHECK
5132 ptr
= alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
;
5133 if (ptr
!= (thead_t
*) NULL
)
5134 alloc_counts
[ (int)alloc_type_thead
].free_list
.f_thead
= ptr
->free
;
5137 register int unallocated
= alloc_counts
[(int)alloc_type_thead
].unallocated
;
5138 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_thead
].cur_page
;
5140 if (unallocated
== 0)
5142 unallocated
= PAGE_SIZE
/ sizeof (thead_t
);
5143 alloc_counts
[(int)alloc_type_thead
].cur_page
= cur_page
= allocate_page ();
5144 alloc_counts
[(int)alloc_type_thead
].total_pages
++;
5147 ptr
= &cur_page
->thead
[--unallocated
];
5148 alloc_counts
[(int)alloc_type_thead
].unallocated
= unallocated
;
5153 ptr
= (thead_t
*) xmalloc (sizeof (thead_t
));
5157 alloc_counts
[(int)alloc_type_thead
].total_alloc
++;
5158 *ptr
= initial_thead
;
5162 /* Free scoping information. */
5168 alloc_counts
[(int)alloc_type_thead
].total_free
++;
5170 #ifndef MALLOC_CHECK
5171 ptr
->free
= (thead_t
*) alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
;
5172 alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
= ptr
;
5178 static lineno_list_t
*
5179 allocate_lineno_list ()
5181 register lineno_list_t
*ptr
;
5182 static lineno_list_t initial_lineno_list
;
5184 #ifndef MALLOC_CHECK
5186 register int unallocated
= alloc_counts
[(int)alloc_type_lineno
].unallocated
;
5187 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_lineno
].cur_page
;
5189 if (unallocated
== 0)
5191 unallocated
= PAGE_SIZE
/ sizeof (lineno_list_t
);
5192 alloc_counts
[(int)alloc_type_lineno
].cur_page
= cur_page
= allocate_page ();
5193 alloc_counts
[(int)alloc_type_lineno
].total_pages
++;
5196 ptr
= &cur_page
->lineno
[--unallocated
];
5197 alloc_counts
[(int)alloc_type_lineno
].unallocated
= unallocated
;
5201 ptr
= (lineno_list_t
*) xmalloc (sizeof (lineno_list_t
));
5205 alloc_counts
[(int)alloc_type_lineno
].total_alloc
++;
5206 *ptr
= initial_lineno_list
;
5211 ecoff_set_gp_prolog_size (sz
)
5214 if (cur_proc_ptr
== 0)
5217 cur_proc_ptr
->pdr
.gp_prologue
= sz
;
5218 if (cur_proc_ptr
->pdr
.gp_prologue
!= sz
)
5220 as_warn ("GP prologue size exceeds field size, using 0 instead");
5221 cur_proc_ptr
->pdr
.gp_prologue
= 0;
5224 cur_proc_ptr
->pdr
.gp_used
= 1;
5228 generate_ecoff_stab (what
, string
, type
, other
, desc
)
5235 efdr_t
*save_file_ptr
= cur_file_ptr
;
5241 localsym_t
*hold
= NULL
;
5243 /* We don't handle .stabd. */
5244 if (what
!= 's' && what
!= 'n')
5246 as_bad (".stab%c is not supported", what
);
5250 /* We ignore the other field. */
5252 as_warn (".stab%c: ignoring non-zero other field", what
);
5254 /* Make sure we have a current file. */
5255 if (cur_file_ptr
== (efdr_t
*) NULL
)
5257 add_file ((const char *) NULL
, 0, 1);
5258 save_file_ptr
= cur_file_ptr
;
5261 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5263 if (stabs_seen
== 0)
5266 /* Line number stabs are handled differently, since they have two
5267 values, the line number and the address of the label. We use the
5268 index field (aka desc) to hold the line number, and the value
5269 field to hold the address. The symbol type is st_Label, which
5270 should be different from the other stabs, so that gdb can
5272 if (type
== N_SLINE
)
5278 listing_source_line ((unsigned int) desc
);
5281 dummy_symr
.index
= desc
;
5282 if (dummy_symr
.index
!= desc
)
5284 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5289 sym
= symbol_find_or_make ((char *)string
);
5298 if (listing
&& (type
== N_SO
|| type
== N_SOL
))
5299 listing_source_file (string
);
5302 sym
= symbol_find_or_make ((char *)string
);
5306 indx
= ECOFF_MARK_STAB (type
);
5309 /* Don't store the stabs symbol we are creating as the type of the
5310 ECOFF symbol. We want to compute the type of the ECOFF symbol
5312 if (sym
!= (symbolS
*) NULL
)
5313 hold
= sym
->ecoff_symbol
;
5315 (void) add_ecoff_symbol (string
, st
, sc
, sym
, (bfd_vma
) 0, value
, indx
);
5317 if (sym
!= (symbolS
*) NULL
)
5318 sym
->ecoff_symbol
= hold
;
5320 /* Restore normal file type. */
5321 cur_file_ptr
= save_file_ptr
;
5325 ecoff_no_current_file ()
5327 return cur_file_ptr
== (efdr_t
*) NULL
;
5331 ecoff_generate_asm_lineno (filename
, lineno
)
5332 const char *filename
;
5335 lineno_list_t
*list
;
5337 if (current_stabs_filename
== (char *)NULL
5338 || strcmp (current_stabs_filename
, filename
))
5339 add_file (filename
, 0, 1);
5341 list
= allocate_lineno_list ();
5343 list
->next
= (lineno_list_t
*) NULL
;
5344 list
->file
= cur_file_ptr
;
5345 list
->proc
= cur_proc_ptr
;
5346 list
->frag
= frag_now
;
5347 list
->paddr
= frag_now_fix ();
5348 list
->lineno
= lineno
;
5350 /* We don't want to merge files which have line numbers. */
5351 cur_file_ptr
->fdr
.fMerge
= 0;
5353 /* A .loc directive will sometimes appear before a .ent directive,
5354 which means that cur_proc_ptr will be NULL here. Arrange to
5356 if (cur_proc_ptr
== (proc_t
*) NULL
)
5360 pl
= &noproc_lineno
;
5361 while (*pl
!= (lineno_list_t
*) NULL
)
5368 *last_lineno_ptr
= list
;
5369 last_lineno_ptr
= &list
->next
;
5373 #endif /* ECOFF_DEBUGGING */