1 /* ECOFF debugging support.
2 Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 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). */
771 /* FIXME: Yes, there can be such strings while emitting C++ class debug
772 info. Templates are the offender here, the test case in question
773 having a mangled class name of
775 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
776 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
778 Repeat that a couple dozen times while listing the class members and
779 you've got strings over 4k. Hack around this for now by increasing
780 the page size. A proper solution would abandon this structure scheme
781 certainly for very large strings, and possibly entirely. */
784 #define PAGE_SIZE (8*1024) /* size of varray pages */
787 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
789 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
790 #define MAX_CLUSTER_PAGES 63
793 /* Linked list connecting separate page allocations. */
794 typedef struct vlinks
{
795 struct vlinks
*prev
; /* previous set of pages */
796 struct vlinks
*next
; /* next set of pages */
797 union page
*datum
; /* start of page */
798 unsigned long start_index
; /* starting index # of page */
802 /* Virtual array header. */
803 typedef struct varray
{
804 vlinks_t
*first
; /* first page link */
805 vlinks_t
*last
; /* last page link */
806 unsigned long num_allocated
; /* # objects allocated */
807 unsigned short object_size
; /* size in bytes of each object */
808 unsigned short objects_per_page
; /* # objects that can fit on a page */
809 unsigned short objects_last_page
; /* # objects allocated on last page */
813 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
815 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
818 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
819 (vlinks_t *)0, /* first */ \
820 (vlinks_t *)0, /* last */ \
821 0, /* num_allocated */ \
822 sizeof (type), /* object_size */ \
823 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
824 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
828 /* Master type for indexes within the symbol table. */
829 typedef unsigned long symint_t
;
832 /* Linked list support for nested scopes (file, block, structure, etc.). */
833 typedef struct scope
{
834 struct scope
*prev
; /* previous scope level */
835 struct scope
*free
; /* free list pointer */
836 struct localsym
*lsym
; /* pointer to local symbol node */
837 st_t type
; /* type of the node */
841 /* For a local symbol we store a gas symbol as well as the debugging
842 information we generate. The gas symbol will be NULL if this is
843 only a debugging symbol. */
844 typedef struct localsym
{
845 const char *name
; /* symbol name */
846 symbolS
*as_sym
; /* symbol as seen by gas */
847 bfd_vma addend
; /* addend to as_sym value */
848 struct efdr
*file_ptr
; /* file pointer */
849 struct ecoff_proc
*proc_ptr
; /* proc pointer */
850 struct localsym
*begin_ptr
; /* symbol at start of block */
851 struct ecoff_aux
*index_ptr
; /* index value to be filled in */
852 struct forward
*forward_ref
; /* forward references to this symbol */
853 long sym_index
; /* final symbol index */
854 EXTR ecoff_sym
; /* ECOFF debugging symbol */
858 /* For aux information we keep the type and the data. */
859 typedef struct ecoff_aux
{
860 enum aux_type type
; /* aux type */
861 AUXU data
; /* aux data */
864 /* For a procedure we store the gas symbol as well as the PDR
865 debugging information. */
866 typedef struct ecoff_proc
{
867 localsym_t
*sym
; /* associated symbol */
868 PDR pdr
; /* ECOFF debugging info */
871 /* Number of proc_t structures allocated. */
872 static unsigned long proc_cnt
;
875 /* Forward reference list for tags referenced, but not yet defined. */
876 typedef struct forward
{
877 struct forward
*next
; /* next forward reference */
878 struct forward
*free
; /* free list pointer */
879 aux_t
*ifd_ptr
; /* pointer to store file index */
880 aux_t
*index_ptr
; /* pointer to store symbol index */
884 /* Linked list support for tags. The first tag in the list is always
885 the current tag for that block. */
887 struct tag
*free
; /* free list pointer */
888 struct shash
*hash_ptr
; /* pointer to the hash table head */
889 struct tag
*same_name
; /* tag with same name in outer scope */
890 struct tag
*same_block
; /* next tag defined in the same block. */
891 struct forward
*forward_ref
; /* list of forward references */
892 bt_t basic_type
; /* bt_Struct, bt_Union, or bt_Enum */
893 symint_t ifd
; /* file # tag defined in */
894 localsym_t
*sym
; /* file's local symbols */
898 /* Head of a block's linked list of tags. */
899 typedef struct thead
{
900 struct thead
*prev
; /* previous block */
901 struct thead
*free
; /* free list pointer */
902 struct tag
*first_tag
; /* first tag in block defined */
906 /* Union containing pointers to each the small structures which are freed up. */
907 typedef union small_free
{
908 scope_t
*f_scope
; /* scope structure */
909 thead_t
*f_thead
; /* tag head structure */
910 tag_t
*f_tag
; /* tag element structure */
911 forward_t
*f_forward
; /* forward tag reference */
915 /* String hash table entry. */
917 typedef struct shash
{
918 char *string
; /* string we are hashing */
919 symint_t indx
; /* index within string table */
920 EXTR
*esym_ptr
; /* global symbol pointer */
921 localsym_t
*sym_ptr
; /* local symbol pointer */
922 localsym_t
*end_ptr
; /* symbol pointer to end block */
923 tag_t
*tag_ptr
; /* tag pointer */
924 proc_t
*proc_ptr
; /* procedure descriptor pointer */
928 /* Type hash table support. The size of the hash table must fit
929 within a page with the other extended file descriptor information.
930 Because unique types which are hashed are fewer in number than
931 strings, we use a smaller hash value. */
936 #define THASH_SIZE 113
939 typedef struct thash
{
940 struct thash
*next
; /* next hash value */
941 AUXU type
; /* type we are hashing */
942 symint_t indx
; /* index within string table */
946 /* Extended file descriptor that contains all of the support necessary
947 to add things to each file separately. */
948 typedef struct efdr
{
949 FDR fdr
; /* File header to be written out */
950 FDR
*orig_fdr
; /* original file header */
951 char *name
; /* filename */
952 int fake
; /* whether this is faked .file */
953 symint_t void_type
; /* aux. pointer to 'void' type */
954 symint_t int_type
; /* aux. pointer to 'int' type */
955 scope_t
*cur_scope
; /* current nested scopes */
956 symint_t file_index
; /* current file number */
957 int nested_scopes
; /* # nested scopes */
958 varray_t strings
; /* local strings */
959 varray_t symbols
; /* local symbols */
960 varray_t procs
; /* procedures */
961 varray_t aux_syms
; /* auxiliary symbols */
962 struct efdr
*next_file
; /* next file descriptor */
963 /* string/type hash tables */
964 struct hash_control
*str_hash
; /* string hash table */
965 thash_t
*thash_head
[THASH_SIZE
];
968 /* Pre-initialized extended file structure. */
969 static const efdr_t init_file
=
971 { /* FDR structure */
972 0, /* adr: memory address of beginning of file */
973 0, /* rss: file name (of source, if known) */
974 0, /* issBase: file's string space */
975 0, /* cbSs: number of bytes in the ss */
976 0, /* isymBase: beginning of symbols */
977 0, /* csym: count file's of symbols */
978 0, /* ilineBase: file's line symbols */
979 0, /* cline: count of file's line symbols */
980 0, /* ioptBase: file's optimization entries */
981 0, /* copt: count of file's optimization entries */
982 0, /* ipdFirst: start of procedures for this file */
983 0, /* cpd: count of procedures for this file */
984 0, /* iauxBase: file's auxiliary entries */
985 0, /* caux: count of file's auxiliary entries */
986 0, /* rfdBase: index into the file indirect table */
987 0, /* crfd: count file indirect entries */
988 langC
, /* lang: language for this file */
989 1, /* fMerge: whether this file can be merged */
990 0, /* fReadin: true if read in (not just created) */
991 TARGET_BYTES_BIG_ENDIAN
, /* fBigendian: if 1, compiled on big endian machine */
992 GLEVEL_2
, /* glevel: level this file was compiled with */
993 0, /* reserved: reserved for future use */
994 0, /* cbLineOffset: byte offset from header for this file ln's */
995 0, /* cbLine: size of lines for this file */
998 (FDR
*)0, /* orig_fdr: original file header pointer */
999 (char *)0, /* name: pointer to filename */
1000 0, /* fake: whether this is a faked .file */
1001 0, /* void_type: ptr to aux node for void type */
1002 0, /* int_type: ptr to aux node for int type */
1003 (scope_t
*)0, /* cur_scope: current scope being processed */
1004 0, /* file_index: current file # */
1005 0, /* nested_scopes: # nested scopes */
1006 INIT_VARRAY (char), /* strings: local string varray */
1007 INIT_VARRAY (localsym_t
), /* symbols: local symbols varray */
1008 INIT_VARRAY (proc_t
), /* procs: procedure varray */
1009 INIT_VARRAY (aux_t
), /* aux_syms: auxiliary symbols varray */
1011 (struct efdr
*)0, /* next_file: next file structure */
1013 (struct hash_control
*)0, /* str_hash: string hash table */
1014 { 0 }, /* thash_head: type hash table */
1018 static efdr_t
*first_file
; /* first file descriptor */
1019 static efdr_t
**last_file_ptr
= &first_file
; /* file descriptor tail */
1022 /* Line number information is kept in a list until the assembly is
1024 typedef struct lineno_list
{
1025 struct lineno_list
*next
; /* next element in list */
1026 efdr_t
*file
; /* file this line is in */
1027 proc_t
*proc
; /* procedure this line is in */
1028 fragS
*frag
; /* fragment this line number is in */
1029 unsigned long paddr
; /* offset within fragment */
1030 long lineno
; /* actual line number */
1033 static lineno_list_t
*first_lineno
;
1034 static lineno_list_t
*last_lineno
;
1035 static lineno_list_t
**last_lineno_ptr
= &first_lineno
;
1037 /* Sometimes there will be some .loc statements before a .ent. We
1038 keep them in this list so that we can fill in the procedure pointer
1039 after we see the .ent. */
1040 static lineno_list_t
*noproc_lineno
;
1042 /* Union of various things that are held in pages. */
1043 typedef union page
{
1044 char byte
[ PAGE_SIZE
];
1045 unsigned char ubyte
[ PAGE_SIZE
];
1046 efdr_t file
[ PAGE_SIZE
/ sizeof (efdr_t
) ];
1047 FDR ofile
[ PAGE_SIZE
/ sizeof (FDR
) ];
1048 proc_t proc
[ PAGE_SIZE
/ sizeof (proc_t
) ];
1049 localsym_t sym
[ PAGE_SIZE
/ sizeof (localsym_t
) ];
1050 aux_t aux
[ PAGE_SIZE
/ sizeof (aux_t
) ];
1051 DNR dense
[ PAGE_SIZE
/ sizeof (DNR
) ];
1052 scope_t scope
[ PAGE_SIZE
/ sizeof (scope_t
) ];
1053 vlinks_t vlinks
[ PAGE_SIZE
/ sizeof (vlinks_t
) ];
1054 shash_t shash
[ PAGE_SIZE
/ sizeof (shash_t
) ];
1055 thash_t thash
[ PAGE_SIZE
/ sizeof (thash_t
) ];
1056 tag_t tag
[ PAGE_SIZE
/ sizeof (tag_t
) ];
1057 forward_t forward
[ PAGE_SIZE
/ sizeof (forward_t
) ];
1058 thead_t thead
[ PAGE_SIZE
/ sizeof (thead_t
) ];
1059 lineno_list_t lineno
[ PAGE_SIZE
/ sizeof (lineno_list_t
) ];
1063 /* Structure holding allocation information for small sized structures. */
1064 typedef struct alloc_info
{
1065 char *alloc_name
; /* name of this allocation type (must be first) */
1066 page_type
*cur_page
; /* current page being allocated from */
1067 small_free_t free_list
; /* current free list if any */
1068 int unallocated
; /* number of elements unallocated on page */
1069 int total_alloc
; /* total number of allocations */
1070 int total_free
; /* total number of frees */
1071 int total_pages
; /* total number of pages allocated */
1075 /* Type information collected together. */
1076 typedef struct type_info
{
1077 bt_t basic_type
; /* basic type */
1078 int orig_type
; /* original COFF-based type */
1079 int num_tq
; /* # type qualifiers */
1080 int num_dims
; /* # dimensions */
1081 int num_sizes
; /* # sizes */
1082 int extra_sizes
; /* # extra sizes not tied with dims */
1083 tag_t
* tag_ptr
; /* tag pointer */
1084 int bitfield
; /* symbol is a bitfield */
1085 tq_t type_qualifiers
[N_TQ
]; /* type qualifiers (ptr, func, array)*/
1086 symint_t dimensions
[N_TQ
]; /* dimensions for each array */
1087 symint_t sizes
[N_TQ
+2]; /* sizes of each array slice + size of
1088 struct/union/enum + bitfield size */
1091 /* Pre-initialized type_info struct. */
1092 static const type_info_t type_info_init
= {
1093 bt_Nil
, /* basic type */
1094 T_NULL
, /* original COFF-based type */
1095 0, /* # type qualifiers */
1096 0, /* # dimensions */
1098 0, /* sizes not tied with dims */
1099 NULL
, /* ptr to tag */
1101 { /* type qualifiers */
1129 /* Global hash table for the tags table and global table for file
1132 static varray_t file_desc
= INIT_VARRAY (efdr_t
);
1134 static struct hash_control
*tag_hash
;
1136 /* Static types for int and void. Also, remember the last function's
1137 type (which is set up when we encounter the declaration for the
1138 function, and used when the end block for the function is emitted. */
1140 static type_info_t int_type_info
;
1141 static type_info_t void_type_info
;
1142 static type_info_t last_func_type_info
;
1143 static symbolS
*last_func_sym_value
;
1146 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1147 really should use bt_Void, but this causes the current ecoff GDB to
1148 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1149 2.0) doesn't understand it, even though the compiler generates it.
1150 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1151 suite, but for now go with what works.
1153 It would make sense for the .type and .scl directives to use the
1154 ECOFF numbers directly, rather than using the COFF numbers and
1155 mapping them. Unfortunately, this is historically what mips-tfile
1156 expects, and changing gcc now would be a considerable pain (the
1157 native compiler generates debugging information internally, rather
1158 than via the assembler, so it will never use .type or .scl). */
1160 static const bt_t map_coff_types
[] = {
1161 bt_Nil
, /* T_NULL */
1163 bt_Char
, /* T_CHAR */
1164 bt_Short
, /* T_SHORT */
1166 bt_Long
, /* T_LONG */
1167 bt_Float
, /* T_FLOAT */
1168 bt_Double
, /* T_DOUBLE */
1169 bt_Struct
, /* T_STRUCT */
1170 bt_Union
, /* T_UNION */
1171 bt_Enum
, /* T_ENUM */
1172 bt_Enum
, /* T_MOE */
1173 bt_UChar
, /* T_UCHAR */
1174 bt_UShort
, /* T_USHORT */
1175 bt_UInt
, /* T_UINT */
1176 bt_ULong
/* T_ULONG */
1179 /* Convert COFF storage class to ECOFF storage class. */
1180 static const sc_t map_coff_storage
[] = {
1181 sc_Nil
, /* 0: C_NULL */
1182 sc_Abs
, /* 1: C_AUTO auto var */
1183 sc_Undefined
, /* 2: C_EXT external */
1184 sc_Data
, /* 3: C_STAT static */
1185 sc_Register
, /* 4: C_REG register */
1186 sc_Undefined
, /* 5: C_EXTDEF ??? */
1187 sc_Text
, /* 6: C_LABEL label */
1188 sc_Text
, /* 7: C_ULABEL user label */
1189 sc_Info
, /* 8: C_MOS member of struct */
1190 sc_Abs
, /* 9: C_ARG argument */
1191 sc_Info
, /* 10: C_STRTAG struct tag */
1192 sc_Info
, /* 11: C_MOU member of union */
1193 sc_Info
, /* 12: C_UNTAG union tag */
1194 sc_Info
, /* 13: C_TPDEF typedef */
1195 sc_Data
, /* 14: C_USTATIC ??? */
1196 sc_Info
, /* 15: C_ENTAG enum tag */
1197 sc_Info
, /* 16: C_MOE member of enum */
1198 sc_Register
, /* 17: C_REGPARM register parameter */
1199 sc_Bits
, /* 18; C_FIELD bitfield */
1281 sc_Text
, /* 100: C_BLOCK block start/end */
1282 sc_Text
, /* 101: C_FCN function start/end */
1283 sc_Info
, /* 102: C_EOS end of struct/union/enum */
1284 sc_Nil
, /* 103: C_FILE file start */
1285 sc_Nil
, /* 104: C_LINE line number */
1286 sc_Nil
, /* 105: C_ALIAS combined type info */
1287 sc_Nil
, /* 106: C_HIDDEN ??? */
1290 /* Convert COFF storage class to ECOFF symbol type. */
1291 static const st_t map_coff_sym_type
[] = {
1292 st_Nil
, /* 0: C_NULL */
1293 st_Local
, /* 1: C_AUTO auto var */
1294 st_Global
, /* 2: C_EXT external */
1295 st_Static
, /* 3: C_STAT static */
1296 st_Local
, /* 4: C_REG register */
1297 st_Global
, /* 5: C_EXTDEF ??? */
1298 st_Label
, /* 6: C_LABEL label */
1299 st_Label
, /* 7: C_ULABEL user label */
1300 st_Member
, /* 8: C_MOS member of struct */
1301 st_Param
, /* 9: C_ARG argument */
1302 st_Block
, /* 10: C_STRTAG struct tag */
1303 st_Member
, /* 11: C_MOU member of union */
1304 st_Block
, /* 12: C_UNTAG union tag */
1305 st_Typedef
, /* 13: C_TPDEF typedef */
1306 st_Static
, /* 14: C_USTATIC ??? */
1307 st_Block
, /* 15: C_ENTAG enum tag */
1308 st_Member
, /* 16: C_MOE member of enum */
1309 st_Param
, /* 17: C_REGPARM register parameter */
1310 st_Member
, /* 18; C_FIELD bitfield */
1392 st_Block
, /* 100: C_BLOCK block start/end */
1393 st_Proc
, /* 101: C_FCN function start/end */
1394 st_End
, /* 102: C_EOS end of struct/union/enum */
1395 st_File
, /* 103: C_FILE file start */
1396 st_Nil
, /* 104: C_LINE line number */
1397 st_Nil
, /* 105: C_ALIAS combined type info */
1398 st_Nil
, /* 106: C_HIDDEN ??? */
1402 /* Keep track of different sized allocation requests. */
1403 static alloc_info_t alloc_counts
[ (int)alloc_type_last
];
1405 /* Record whether we have seen any debugging information. */
1406 int ecoff_debugging_seen
= 0;
1408 /* Various statics. */
1409 static efdr_t
*cur_file_ptr
= (efdr_t
*) 0; /* current file desc. header */
1410 static proc_t
*cur_proc_ptr
= (proc_t
*) 0; /* current procedure header */
1411 static proc_t
*first_proc_ptr
= (proc_t
*) 0; /* first procedure header */
1412 static thead_t
*top_tag_head
= (thead_t
*) 0; /* top level tag head */
1413 static thead_t
*cur_tag_head
= (thead_t
*) 0; /* current tag head */
1415 static int debug
= 0; /* trace functions */
1417 static int stabs_seen
= 0; /* != 0 if stabs have been seen */
1419 static int current_file_idx
;
1420 static const char *current_stabs_filename
;
1422 /* Pseudo symbol to use when putting stabs into the symbol table. */
1423 #ifndef STABS_SYMBOL
1424 #define STABS_SYMBOL "@stabs"
1427 static char stabs_symbol
[] = STABS_SYMBOL
;
1429 /* Prototypes for functions defined in this file. */
1431 static void add_varray_page
PARAMS ((varray_t
*vp
));
1432 static symint_t add_string
PARAMS ((varray_t
*vp
,
1433 struct hash_control
*hash_tbl
,
1435 shash_t
**ret_hash
));
1436 static localsym_t
*add_ecoff_symbol
PARAMS ((const char *str
, st_t type
,
1437 sc_t storage
, symbolS
*sym
,
1438 bfd_vma addend
, symint_t value
,
1440 static symint_t add_aux_sym_symint
PARAMS ((symint_t aux_word
));
1441 static symint_t add_aux_sym_rndx
PARAMS ((int file_index
,
1442 symint_t sym_index
));
1443 static symint_t add_aux_sym_tir
PARAMS ((type_info_t
*t
,
1445 thash_t
**hash_tbl
));
1446 static tag_t
*get_tag
PARAMS ((const char *tag
, localsym_t
*sym
,
1448 static void add_unknown_tag
PARAMS ((tag_t
*ptag
));
1449 static void add_procedure
PARAMS ((char *func
));
1450 static void add_file
PARAMS ((const char *file_name
, int indx
, int fake
));
1452 static char *sc_to_string
PARAMS ((sc_t storage_class
));
1453 static char *st_to_string
PARAMS ((st_t symbol_type
));
1455 static void mark_stabs
PARAMS ((int));
1456 static char *ecoff_add_bytes
PARAMS ((char **buf
, char **bufend
,
1457 char *bufptr
, unsigned long need
));
1458 static unsigned long ecoff_padding_adjust
1459 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1460 unsigned long offset
, char **bufptrptr
));
1461 static unsigned long ecoff_build_lineno
1462 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1463 unsigned long offset
, long *linecntptr
));
1464 static unsigned long ecoff_build_symbols
1465 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1466 unsigned long offset
));
1467 static unsigned long ecoff_build_procs
1468 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1469 unsigned long offset
));
1470 static unsigned long ecoff_build_aux
1471 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1472 unsigned long offset
));
1473 static unsigned long ecoff_build_strings
PARAMS ((char **buf
, char **bufend
,
1474 unsigned long offset
,
1476 static unsigned long ecoff_build_ss
1477 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1478 unsigned long offset
));
1479 static unsigned long ecoff_build_fdr
1480 PARAMS ((const struct ecoff_debug_swap
*backend
, char **buf
, char **bufend
,
1481 unsigned long offset
));
1482 static void ecoff_setup_ext
PARAMS ((void));
1483 static page_type
*allocate_cluster
PARAMS ((unsigned long npages
));
1484 static page_type
*allocate_page
PARAMS ((void));
1485 static scope_t
*allocate_scope
PARAMS ((void));
1486 static void free_scope
PARAMS ((scope_t
*ptr
));
1487 static vlinks_t
*allocate_vlinks
PARAMS ((void));
1488 static shash_t
*allocate_shash
PARAMS ((void));
1489 static thash_t
*allocate_thash
PARAMS ((void));
1490 static tag_t
*allocate_tag
PARAMS ((void));
1491 static void free_tag
PARAMS ((tag_t
*ptr
));
1492 static forward_t
*allocate_forward
PARAMS ((void));
1493 static thead_t
*allocate_thead
PARAMS ((void));
1494 static void free_thead
PARAMS ((thead_t
*ptr
));
1495 static lineno_list_t
*allocate_lineno_list
PARAMS ((void));
1497 /* This function should be called when the assembler starts up. */
1500 ecoff_read_begin_hook ()
1502 tag_hash
= hash_new ();
1503 top_tag_head
= allocate_thead ();
1504 top_tag_head
->first_tag
= (tag_t
*) NULL
;
1505 top_tag_head
->free
= (thead_t
*) NULL
;
1506 top_tag_head
->prev
= cur_tag_head
;
1507 cur_tag_head
= top_tag_head
;
1510 /* This function should be called when a symbol is created. */
1513 ecoff_symbol_new_hook (symbolP
)
1516 OBJ_SYMFIELD_TYPE
*obj
;
1518 /* Make sure that we have a file pointer, but only if we have seen a
1519 file. If we haven't seen a file, then this is a probably special
1520 symbol created by md_begin which may required special handling at
1521 some point. Creating a dummy file with a dummy name is certainly
1523 if (cur_file_ptr
== (efdr_t
*) NULL
1524 && seen_at_least_1_file ())
1525 add_file ((const char *) NULL
, 0, 1);
1526 obj
= symbol_get_obj (symbolP
);
1527 obj
->ecoff_file
= cur_file_ptr
;
1528 obj
->ecoff_symbol
= NULL
;
1529 obj
->ecoff_extern_size
= 0;
1532 /* Add a page to a varray object. */
1535 add_varray_page (vp
)
1536 varray_t
*vp
; /* varray to add page to */
1538 vlinks_t
*new_links
= allocate_vlinks ();
1541 if (vp
->object_size
> 1)
1542 new_links
->datum
= (page_type
*) xcalloc (1, vp
->object_size
);
1545 new_links
->datum
= allocate_page ();
1547 alloc_counts
[(int)alloc_type_varray
].total_alloc
++;
1548 alloc_counts
[(int)alloc_type_varray
].total_pages
++;
1550 new_links
->start_index
= vp
->num_allocated
;
1551 vp
->objects_last_page
= 0;
1553 if (vp
->first
== (vlinks_t
*) NULL
) /* first allocation? */
1554 vp
->first
= vp
->last
= new_links
;
1556 { /* 2nd or greater allocation */
1557 new_links
->prev
= vp
->last
;
1558 vp
->last
->next
= new_links
;
1559 vp
->last
= new_links
;
1563 /* Add a string (and null pad) to one of the string tables. */
1566 add_string (vp
, hash_tbl
, str
, ret_hash
)
1567 varray_t
*vp
; /* string obstack */
1568 struct hash_control
*hash_tbl
; /* ptr to hash table */
1569 const char *str
; /* string */
1570 shash_t
**ret_hash
; /* return hash pointer */
1572 register unsigned long len
= strlen (str
);
1573 register shash_t
*hash_ptr
;
1575 if (len
>= PAGE_USIZE
)
1576 as_fatal (_("String too big (%lu bytes)"), len
);
1578 hash_ptr
= (shash_t
*) hash_find (hash_tbl
, str
);
1579 if (hash_ptr
== (shash_t
*) NULL
)
1581 register const char *err
;
1583 if (vp
->objects_last_page
+ len
>= PAGE_USIZE
)
1586 ((vp
->num_allocated
+ PAGE_USIZE
- 1) / PAGE_USIZE
) * PAGE_USIZE
;
1587 add_varray_page (vp
);
1590 hash_ptr
= allocate_shash ();
1591 hash_ptr
->indx
= vp
->num_allocated
;
1593 hash_ptr
->string
= &vp
->last
->datum
->byte
[vp
->objects_last_page
];
1595 vp
->objects_last_page
+= len
+ 1;
1596 vp
->num_allocated
+= len
+ 1;
1598 strcpy (hash_ptr
->string
, str
);
1600 err
= hash_insert (hash_tbl
, str
, (char *) hash_ptr
);
1602 as_fatal (_("Inserting \"%s\" into string hash table: %s"),
1606 if (ret_hash
!= (shash_t
**) NULL
)
1607 *ret_hash
= hash_ptr
;
1609 return hash_ptr
->indx
;
1612 /* Add debugging information for a symbol. */
1615 add_ecoff_symbol (str
, type
, storage
, sym_value
, addend
, value
, indx
)
1616 const char *str
; /* symbol name */
1617 st_t type
; /* symbol type */
1618 sc_t storage
; /* storage class */
1619 symbolS
*sym_value
; /* associated symbol. */
1620 bfd_vma addend
; /* addend to sym_value. */
1621 symint_t value
; /* value of symbol */
1622 symint_t indx
; /* index to local/aux. syms */
1625 register scope_t
*pscope
;
1626 register thead_t
*ptag_head
;
1627 register tag_t
*ptag
;
1628 register tag_t
*ptag_next
;
1629 register varray_t
*vp
;
1630 register int scope_delta
= 0;
1631 shash_t
*hash_ptr
= (shash_t
*) NULL
;
1633 if (cur_file_ptr
== (efdr_t
*) NULL
)
1634 as_fatal (_("no current file pointer"));
1636 vp
= &cur_file_ptr
->symbols
;
1638 if (vp
->objects_last_page
== vp
->objects_per_page
)
1639 add_varray_page (vp
);
1641 psym
= &vp
->last
->datum
->sym
[ vp
->objects_last_page
++ ];
1643 if (str
== (const char *) NULL
&& sym_value
!= (symbolS
*) NULL
)
1644 psym
->name
= S_GET_NAME (sym_value
);
1647 psym
->as_sym
= sym_value
;
1648 if (sym_value
!= (symbolS
*) NULL
)
1649 symbol_get_obj (sym_value
)->ecoff_symbol
= psym
;
1650 psym
->addend
= addend
;
1651 psym
->file_ptr
= cur_file_ptr
;
1652 psym
->proc_ptr
= cur_proc_ptr
;
1653 psym
->begin_ptr
= (localsym_t
*) NULL
;
1654 psym
->index_ptr
= (aux_t
*) NULL
;
1655 psym
->forward_ref
= (forward_t
*) NULL
;
1656 psym
->sym_index
= -1;
1657 memset (&psym
->ecoff_sym
, 0, sizeof (EXTR
));
1658 psym
->ecoff_sym
.asym
.value
= value
;
1659 psym
->ecoff_sym
.asym
.st
= (unsigned) type
;
1660 psym
->ecoff_sym
.asym
.sc
= (unsigned) storage
;
1661 psym
->ecoff_sym
.asym
.index
= indx
;
1663 /* If there is an associated symbol, we wait until the end of the
1664 assembly before deciding where to put the name (it may be just an
1665 external symbol). Otherwise, this is just a debugging symbol and
1666 the name should go with the current file. */
1667 if (sym_value
== (symbolS
*) NULL
)
1668 psym
->ecoff_sym
.asym
.iss
= ((str
== (const char *) NULL
)
1670 : add_string (&cur_file_ptr
->strings
,
1671 cur_file_ptr
->str_hash
,
1675 ++vp
->num_allocated
;
1677 if (ECOFF_IS_STAB (&psym
->ecoff_sym
.asym
))
1680 /* Save the symbol within the hash table if this is a static
1681 item, and it has a name. */
1682 if (hash_ptr
!= (shash_t
*) NULL
1683 && (type
== st_Global
|| type
== st_Static
|| type
== st_Label
1684 || type
== st_Proc
|| type
== st_StaticProc
))
1685 hash_ptr
->sym_ptr
= psym
;
1687 /* push or pop a scope if appropriate. */
1693 case st_File
: /* beginning of file */
1694 case st_Proc
: /* procedure */
1695 case st_StaticProc
: /* static procedure */
1696 case st_Block
: /* begin scope */
1697 pscope
= allocate_scope ();
1698 pscope
->prev
= cur_file_ptr
->cur_scope
;
1699 pscope
->lsym
= psym
;
1700 pscope
->type
= type
;
1701 cur_file_ptr
->cur_scope
= pscope
;
1703 if (type
!= st_File
)
1706 /* For every block type except file, struct, union, or
1707 enumeration blocks, push a level on the tag stack. We omit
1708 file types, so that tags can span file boundaries. */
1709 if (type
!= st_File
&& storage
!= sc_Info
)
1711 ptag_head
= allocate_thead ();
1712 ptag_head
->first_tag
= 0;
1713 ptag_head
->prev
= cur_tag_head
;
1714 cur_tag_head
= ptag_head
;
1719 pscope
= cur_file_ptr
->cur_scope
;
1720 if (pscope
== (scope_t
*) NULL
)
1721 as_fatal (_("too many st_End's"));
1724 st_t begin_type
= (st_t
) pscope
->lsym
->ecoff_sym
.asym
.st
;
1726 psym
->begin_ptr
= pscope
->lsym
;
1728 if (begin_type
!= st_File
)
1731 /* Except for file, structure, union, or enumeration end
1732 blocks remove all tags created within this scope. */
1733 if (begin_type
!= st_File
&& storage
!= sc_Info
)
1735 ptag_head
= cur_tag_head
;
1736 cur_tag_head
= ptag_head
->prev
;
1738 for (ptag
= ptag_head
->first_tag
;
1739 ptag
!= (tag_t
*) NULL
;
1742 if (ptag
->forward_ref
!= (forward_t
*) NULL
)
1743 add_unknown_tag (ptag
);
1745 ptag_next
= ptag
->same_block
;
1746 ptag
->hash_ptr
->tag_ptr
= ptag
->same_name
;
1750 free_thead (ptag_head
);
1753 cur_file_ptr
->cur_scope
= pscope
->prev
;
1755 /* block begin gets next sym #. This is set when we know
1756 the symbol index value. */
1758 /* Functions push two or more aux words as follows:
1759 1st word: index+1 of the end symbol (filled in later).
1760 2nd word: type of the function (plus any aux words needed).
1761 Also, tie the external pointer back to the function begin symbol. */
1762 if (begin_type
!= st_File
&& begin_type
!= st_Block
)
1765 varray_t
*svp
= &cur_file_ptr
->aux_syms
;
1767 pscope
->lsym
->ecoff_sym
.asym
.index
= add_aux_sym_symint (0);
1768 pscope
->lsym
->index_ptr
=
1769 &svp
->last
->datum
->aux
[svp
->objects_last_page
- 1];
1770 ty
= add_aux_sym_tir (&last_func_type_info
,
1772 &cur_file_ptr
->thash_head
[0]);
1774 /* This seems to be unnecessary. I'm not even sure what it is
1775 * intended to do. It's from mips-tfile.
1776 * if (last_func_sym_value != (symbolS *) NULL)
1778 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1779 * last_func_sym_value->index = ty;
1784 free_scope (pscope
);
1788 cur_file_ptr
->nested_scopes
+= scope_delta
;
1791 if (debug
&& type
!= st_File
1792 && (debug
> 2 || type
== st_Block
|| type
== st_End
1793 || type
== st_Proc
|| type
== st_StaticProc
))
1795 char *sc_str
= sc_to_string (storage
);
1796 char *st_str
= st_to_string (type
);
1797 int depth
= cur_file_ptr
->nested_scopes
+ (scope_delta
< 0);
1800 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1801 value
, depth
, sc_str
);
1803 if (str_start
&& str_end_p1
- str_start
> 0)
1804 fprintf (stderr
, " st= %-11s name= %.*s\n", st_str
, str_end_p1
- str_start
, str_start
);
1807 unsigned long len
= strlen (st_str
);
1808 fprintf (stderr
, " st= %.*s\n", len
-1, st_str
);
1816 /* Add an auxiliary symbol (passing a symint). This is actually used
1817 for integral aux types, not just symints. */
1820 add_aux_sym_symint (aux_word
)
1821 symint_t aux_word
; /* auxiliary information word */
1823 register varray_t
*vp
;
1824 register aux_t
*aux_ptr
;
1826 if (cur_file_ptr
== (efdr_t
*) NULL
)
1827 as_fatal (_("no current file pointer"));
1829 vp
= &cur_file_ptr
->aux_syms
;
1831 if (vp
->objects_last_page
== vp
->objects_per_page
)
1832 add_varray_page (vp
);
1834 aux_ptr
= &vp
->last
->datum
->aux
[vp
->objects_last_page
++];
1835 aux_ptr
->type
= aux_isym
;
1836 aux_ptr
->data
.isym
= aux_word
;
1838 return vp
->num_allocated
++;
1842 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1845 add_aux_sym_rndx (file_index
, sym_index
)
1849 register varray_t
*vp
;
1850 register aux_t
*aux_ptr
;
1852 if (cur_file_ptr
== (efdr_t
*) NULL
)
1853 as_fatal (_("no current file pointer"));
1855 vp
= &cur_file_ptr
->aux_syms
;
1857 if (vp
->objects_last_page
== vp
->objects_per_page
)
1858 add_varray_page (vp
);
1860 aux_ptr
= &vp
->last
->datum
->aux
[vp
->objects_last_page
++];
1861 aux_ptr
->type
= aux_rndx
;
1862 aux_ptr
->data
.rndx
.rfd
= file_index
;
1863 aux_ptr
->data
.rndx
.index
= sym_index
;
1865 return vp
->num_allocated
++;
1868 /* Add an auxiliary symbol (passing the basic type and possibly
1869 type qualifiers). */
1872 add_aux_sym_tir (t
, state
, hash_tbl
)
1873 type_info_t
*t
; /* current type information */
1874 hash_state_t state
; /* whether to hash type or not */
1875 thash_t
**hash_tbl
; /* pointer to hash table to use */
1877 register varray_t
*vp
;
1878 register aux_t
*aux_ptr
;
1879 static AUXU init_aux
;
1884 if (cur_file_ptr
== (efdr_t
*) NULL
)
1885 as_fatal (_("no current file pointer"));
1887 vp
= &cur_file_ptr
->aux_syms
;
1890 aux
.ti
.bt
= (int) t
->basic_type
;
1891 aux
.ti
.continued
= 0;
1892 aux
.ti
.fBitfield
= t
->bitfield
;
1894 aux
.ti
.tq0
= (int) t
->type_qualifiers
[0];
1895 aux
.ti
.tq1
= (int) t
->type_qualifiers
[1];
1896 aux
.ti
.tq2
= (int) t
->type_qualifiers
[2];
1897 aux
.ti
.tq3
= (int) t
->type_qualifiers
[3];
1898 aux
.ti
.tq4
= (int) t
->type_qualifiers
[4];
1899 aux
.ti
.tq5
= (int) t
->type_qualifiers
[5];
1902 /* For anything that adds additional information, we must not hash,
1903 so check here, and reset our state. */
1905 if (state
!= hash_no
1906 && (t
->type_qualifiers
[0] == tq_Array
1907 || t
->type_qualifiers
[1] == tq_Array
1908 || t
->type_qualifiers
[2] == tq_Array
1909 || t
->type_qualifiers
[3] == tq_Array
1910 || t
->type_qualifiers
[4] == tq_Array
1911 || t
->type_qualifiers
[5] == tq_Array
1912 || t
->basic_type
== bt_Struct
1913 || t
->basic_type
== bt_Union
1914 || t
->basic_type
== bt_Enum
1916 || t
->num_dims
> 0))
1919 /* See if we can hash this type, and save some space, but some types
1920 can't be hashed (because they contain arrays or continuations),
1921 and others can be put into the hash list, but cannot use existing
1922 types because other aux entries precede this one. */
1924 if (state
!= hash_no
)
1926 register thash_t
*hash_ptr
;
1927 register symint_t hi
;
1929 hi
= aux
.isym
& ((1 << HASHBITS
) - 1);
1932 for (hash_ptr
= hash_tbl
[hi
];
1933 hash_ptr
!= (thash_t
*)0;
1934 hash_ptr
= hash_ptr
->next
)
1936 if (aux
.isym
== hash_ptr
->type
.isym
)
1940 if (hash_ptr
!= (thash_t
*) NULL
&& state
== hash_yes
)
1941 return hash_ptr
->indx
;
1943 if (hash_ptr
== (thash_t
*) NULL
)
1945 hash_ptr
= allocate_thash ();
1946 hash_ptr
->next
= hash_tbl
[hi
];
1947 hash_ptr
->type
= aux
;
1948 hash_ptr
->indx
= vp
->num_allocated
;
1949 hash_tbl
[hi
] = hash_ptr
;
1953 /* Everything is set up, add the aux symbol. */
1954 if (vp
->objects_last_page
== vp
->objects_per_page
)
1955 add_varray_page (vp
);
1957 aux_ptr
= &vp
->last
->datum
->aux
[ vp
->objects_last_page
++ ];
1958 aux_ptr
->type
= aux_tir
;
1959 aux_ptr
->data
= aux
;
1961 ret
= vp
->num_allocated
++;
1963 /* Add bitfield length if it exists.
1965 NOTE: Mips documentation claims bitfield goes at the end of the
1966 AUX record, but the DECstation compiler emits it here.
1967 (This would only make a difference for enum bitfields.)
1969 Also note: We use the last size given since gcc may emit 2
1970 for an enum bitfield. */
1973 (void) add_aux_sym_symint ((symint_t
)t
->sizes
[t
->num_sizes
-1]);
1976 /* Add tag information if needed. Structure, union, and enum
1977 references add 2 aux symbols: a [file index, symbol index]
1978 pointer to the structure type, and the current file index. */
1980 if (t
->basic_type
== bt_Struct
1981 || t
->basic_type
== bt_Union
1982 || t
->basic_type
== bt_Enum
)
1984 register symint_t file_index
= t
->tag_ptr
->ifd
;
1985 register localsym_t
*sym
= t
->tag_ptr
->sym
;
1986 register forward_t
*forward_ref
= allocate_forward ();
1988 if (sym
!= (localsym_t
*) NULL
)
1990 forward_ref
->next
= sym
->forward_ref
;
1991 sym
->forward_ref
= forward_ref
;
1995 forward_ref
->next
= t
->tag_ptr
->forward_ref
;
1996 t
->tag_ptr
->forward_ref
= forward_ref
;
1999 (void) add_aux_sym_rndx (ST_RFDESCAPE
, indexNil
);
2000 forward_ref
->index_ptr
2001 = &vp
->last
->datum
->aux
[ vp
->objects_last_page
- 1];
2003 (void) add_aux_sym_symint (file_index
);
2004 forward_ref
->ifd_ptr
2005 = &vp
->last
->datum
->aux
[ vp
->objects_last_page
- 1];
2008 /* Add information about array bounds if they exist. */
2009 for (i
= 0; i
< t
->num_dims
; i
++)
2011 (void) add_aux_sym_rndx (ST_RFDESCAPE
,
2012 cur_file_ptr
->int_type
);
2014 (void) add_aux_sym_symint (cur_file_ptr
->file_index
); /* file index*/
2015 (void) add_aux_sym_symint ((symint_t
) 0); /* low bound */
2016 (void) add_aux_sym_symint (t
->dimensions
[i
] - 1); /* high bound*/
2017 (void) add_aux_sym_symint ((t
->dimensions
[i
] == 0) /* stride */
2019 : (t
->sizes
[i
] * 8) / t
->dimensions
[i
]);
2022 /* NOTE: Mips documentation claims that the bitfield width goes here.
2023 But it needs to be emitted earlier. */
2028 /* Add a tag to the tag table (unless it already exists). */
2031 get_tag (tag
, sym
, basic_type
)
2032 const char *tag
; /* tag name */
2033 localsym_t
*sym
; /* tag start block */
2034 bt_t basic_type
; /* bt_Struct, bt_Union, or bt_Enum */
2040 if (cur_file_ptr
== (efdr_t
*) NULL
)
2041 as_fatal (_("no current file pointer"));
2043 hash_ptr
= (shash_t
*) hash_find (tag_hash
, tag
);
2045 if (hash_ptr
!= (shash_t
*) NULL
2046 && hash_ptr
->tag_ptr
!= (tag_t
*) NULL
)
2048 tag_ptr
= hash_ptr
->tag_ptr
;
2049 if (sym
!= (localsym_t
*) NULL
)
2051 tag_ptr
->basic_type
= basic_type
;
2052 tag_ptr
->ifd
= cur_file_ptr
->file_index
;
2058 if (hash_ptr
== (shash_t
*) NULL
)
2062 perm
= xmalloc ((unsigned long) (strlen (tag
) + 1));
2064 hash_ptr
= allocate_shash ();
2065 err
= hash_insert (tag_hash
, perm
, (char *) hash_ptr
);
2067 as_fatal (_("Inserting \"%s\" into tag hash table: %s"),
2069 hash_ptr
->string
= perm
;
2072 tag_ptr
= allocate_tag ();
2073 tag_ptr
->forward_ref
= (forward_t
*) NULL
;
2074 tag_ptr
->hash_ptr
= hash_ptr
;
2075 tag_ptr
->same_name
= hash_ptr
->tag_ptr
;
2076 tag_ptr
->basic_type
= basic_type
;
2078 tag_ptr
->ifd
= ((sym
== (localsym_t
*) NULL
)
2080 : cur_file_ptr
->file_index
);
2081 tag_ptr
->same_block
= cur_tag_head
->first_tag
;
2083 cur_tag_head
->first_tag
= tag_ptr
;
2084 hash_ptr
->tag_ptr
= tag_ptr
;
2089 /* Add an unknown {struct, union, enum} tag. */
2092 add_unknown_tag (ptag
)
2093 tag_t
*ptag
; /* pointer to tag information */
2095 shash_t
*hash_ptr
= ptag
->hash_ptr
;
2096 char *name
= hash_ptr
->string
;
2103 char *agg_type
= "{unknown aggregate type}";
2104 switch (ptag
->basic_type
)
2106 case bt_Struct
: agg_type
= "struct"; break;
2107 case bt_Union
: agg_type
= "union"; break;
2108 case bt_Enum
: agg_type
= "enum"; break;
2112 fprintf (stderr
, "unknown %s %.*s found\n", agg_type
,
2113 hash_ptr
->len
, name_start
);
2117 sym
= add_ecoff_symbol (name
,
2125 (void) add_ecoff_symbol (name
,
2133 for (pf
= &sym
->forward_ref
; *pf
!= (forward_t
*) NULL
; pf
= &(*pf
)->next
)
2135 *pf
= ptag
->forward_ref
;
2138 /* Add a procedure to the current file's list of procedures, and record
2139 this is the current procedure. */
2142 add_procedure (func
)
2143 char *func
; /* func name */
2145 register varray_t
*vp
;
2146 register proc_t
*new_proc_ptr
;
2151 fputc ('\n', stderr
);
2154 if (cur_file_ptr
== (efdr_t
*) NULL
)
2155 as_fatal (_("no current file pointer"));
2157 vp
= &cur_file_ptr
->procs
;
2159 if (vp
->objects_last_page
== vp
->objects_per_page
)
2160 add_varray_page (vp
);
2162 cur_proc_ptr
= new_proc_ptr
= &vp
->last
->datum
->proc
[vp
->objects_last_page
++];
2164 if (first_proc_ptr
== (proc_t
*) NULL
)
2165 first_proc_ptr
= new_proc_ptr
;
2167 vp
->num_allocated
++;
2169 new_proc_ptr
->pdr
.isym
= -1;
2170 new_proc_ptr
->pdr
.iline
= -1;
2171 new_proc_ptr
->pdr
.lnLow
= -1;
2172 new_proc_ptr
->pdr
.lnHigh
= -1;
2174 /* Set the BSF_FUNCTION flag for the symbol. */
2175 sym
= symbol_find_or_make (func
);
2176 symbol_get_bfdsym (sym
)->flags
|= BSF_FUNCTION
;
2178 /* Push the start of the function. */
2179 new_proc_ptr
->sym
= add_ecoff_symbol ((const char *) NULL
, st_Proc
, sc_Text
,
2180 sym
, (bfd_vma
) 0, (symint_t
) 0,
2185 /* Fill in the linenos preceding the .ent, if any. */
2186 if (noproc_lineno
!= (lineno_list_t
*) NULL
)
2190 for (l
= noproc_lineno
; l
!= (lineno_list_t
*) NULL
; l
= l
->next
)
2191 l
->proc
= new_proc_ptr
;
2192 *last_lineno_ptr
= noproc_lineno
;
2193 while (*last_lineno_ptr
!= NULL
)
2195 last_lineno
= *last_lineno_ptr
;
2196 last_lineno_ptr
= &last_lineno
->next
;
2198 noproc_lineno
= (lineno_list_t
*) NULL
;
2203 ecoff_get_cur_proc_sym ()
2205 return (cur_proc_ptr
? cur_proc_ptr
->sym
->as_sym
: NULL
);
2208 /* Add a new filename, and set up all of the file relative
2209 virtual arrays (strings, symbols, aux syms, etc.). Record
2210 where the current file structure lives. */
2213 add_file (file_name
, indx
, fake
)
2214 const char *file_name
; /* file name */
2218 register int first_ch
;
2219 register efdr_t
*fil_ptr
;
2223 fprintf (stderr
, "\tfile\t%.*s\n", len
, file_start
);
2226 /* If the file name is NULL, then no .file symbol appeared, and we
2227 want to use the actual file name. */
2228 if (file_name
== (const char *) NULL
)
2232 if (first_file
!= (efdr_t
*) NULL
)
2233 as_fatal (_("fake .file after real one"));
2234 as_where (&file
, (unsigned int *) NULL
);
2235 file_name
= (const char *) file
;
2237 /* Automatically generate ECOFF debugging information, since I
2238 think that's what other ECOFF assemblers do. We don't do
2239 this if we see a .file directive with a string, since that
2240 implies that some sort of debugging information is being
2242 if (! symbol_table_frozen
&& debug_type
== DEBUG_NONE
)
2243 debug_type
= DEBUG_ECOFF
;
2248 listing_source_file (file_name
);
2251 current_stabs_filename
= file_name
;
2253 /* If we're creating stabs, then we don't actually make a new FDR.
2254 Instead, we just create a stabs symbol. */
2257 (void) add_ecoff_symbol (file_name
, st_Nil
, sc_Nil
,
2258 symbol_new ("L0\001", now_seg
,
2259 (valueT
) frag_now_fix (),
2261 (bfd_vma
) 0, 0, ECOFF_MARK_STAB (N_SOL
));
2265 first_ch
= *file_name
;
2267 /* FIXME: We can't safely merge files which have line number
2268 information (fMerge will be zero in this case). Otherwise, we
2269 get incorrect line number debugging info. See for instance
2270 ecoff_build_lineno, which will end up setting all file->fdr.*
2271 fields multiple times, resulting in incorrect debug info. In
2272 order to make this work right, all line number and symbol info
2273 for the same source file has to be adjacent in the object file,
2274 so that a single file descriptor can be used to point to them.
2275 This would require maintaining file specific lists of line
2276 numbers and symbols for each file, so that they can be merged
2277 together (or output together) when two .file pseudo-ops are
2278 merged into one file descriptor. */
2280 /* See if the file has already been created. */
2281 for (fil_ptr
= first_file
;
2282 fil_ptr
!= (efdr_t
*) NULL
;
2283 fil_ptr
= fil_ptr
->next_file
)
2285 if (first_ch
== fil_ptr
->name
[0]
2286 && strcmp (file_name
, fil_ptr
->name
) == 0
2287 && fil_ptr
->fdr
.fMerge
)
2289 cur_file_ptr
= fil_ptr
;
2291 cur_file_ptr
->fake
= 0;
2296 /* If this is a new file, create it. */
2297 if (fil_ptr
== (efdr_t
*) NULL
)
2299 if (file_desc
.objects_last_page
== file_desc
.objects_per_page
)
2300 add_varray_page (&file_desc
);
2302 fil_ptr
= cur_file_ptr
=
2303 &file_desc
.last
->datum
->file
[file_desc
.objects_last_page
++];
2304 *fil_ptr
= init_file
;
2306 fil_ptr
->file_index
= current_file_idx
++;
2307 ++file_desc
.num_allocated
;
2309 fil_ptr
->fake
= fake
;
2311 /* Allocate the string hash table. */
2312 fil_ptr
->str_hash
= hash_new ();
2314 /* Make sure 0 byte in string table is null */
2315 add_string (&fil_ptr
->strings
,
2320 if (strlen (file_name
) > PAGE_USIZE
- 2)
2321 as_fatal (_("Filename goes over one page boundary."));
2323 /* Push the start of the filename. We assume that the filename
2324 will be stored at string offset 1. */
2325 (void) add_ecoff_symbol (file_name
, st_File
, sc_Text
,
2326 (symbolS
*) NULL
, (bfd_vma
) 0,
2327 (symint_t
) 0, (symint_t
) 0);
2328 fil_ptr
->fdr
.rss
= 1;
2329 fil_ptr
->name
= &fil_ptr
->strings
.last
->datum
->byte
[1];
2331 /* Update the linked list of file descriptors. */
2332 *last_file_ptr
= fil_ptr
;
2333 last_file_ptr
= &fil_ptr
->next_file
;
2335 /* Add void & int types to the file (void should be first to catch
2336 errant 0's within the index fields). */
2337 fil_ptr
->void_type
= add_aux_sym_tir (&void_type_info
,
2339 &cur_file_ptr
->thash_head
[0]);
2341 fil_ptr
->int_type
= add_aux_sym_tir (&int_type_info
,
2343 &cur_file_ptr
->thash_head
[0]);
2347 /* This function is called when the assembler notices a preprocessor
2348 directive switching to a new file. This will not happen in
2349 compiler output, only in hand coded assembler. */
2352 ecoff_new_file (name
)
2355 if (cur_file_ptr
!= NULL
&& strcmp (cur_file_ptr
->name
, name
) == 0)
2357 add_file (name
, 0, 0);
2359 /* This is a hand coded assembler file, so automatically turn on
2360 debugging information. */
2361 if (debug_type
== DEBUG_NONE
)
2362 debug_type
= DEBUG_ECOFF
;
2367 /* Convert storage class to string. */
2370 sc_to_string(storage_class
)
2373 switch(storage_class
)
2375 case sc_Nil
: return "Nil,";
2376 case sc_Text
: return "Text,";
2377 case sc_Data
: return "Data,";
2378 case sc_Bss
: return "Bss,";
2379 case sc_Register
: return "Register,";
2380 case sc_Abs
: return "Abs,";
2381 case sc_Undefined
: return "Undefined,";
2382 case sc_CdbLocal
: return "CdbLocal,";
2383 case sc_Bits
: return "Bits,";
2384 case sc_CdbSystem
: return "CdbSystem,";
2385 case sc_RegImage
: return "RegImage,";
2386 case sc_Info
: return "Info,";
2387 case sc_UserStruct
: return "UserStruct,";
2388 case sc_SData
: return "SData,";
2389 case sc_SBss
: return "SBss,";
2390 case sc_RData
: return "RData,";
2391 case sc_Var
: return "Var,";
2392 case sc_Common
: return "Common,";
2393 case sc_SCommon
: return "SCommon,";
2394 case sc_VarRegister
: return "VarRegister,";
2395 case sc_Variant
: return "Variant,";
2396 case sc_SUndefined
: return "SUndefined,";
2397 case sc_Init
: return "Init,";
2398 case sc_Max
: return "Max,";
2408 /* Convert symbol type to string. */
2411 st_to_string(symbol_type
)
2416 case st_Nil
: return "Nil,";
2417 case st_Global
: return "Global,";
2418 case st_Static
: return "Static,";
2419 case st_Param
: return "Param,";
2420 case st_Local
: return "Local,";
2421 case st_Label
: return "Label,";
2422 case st_Proc
: return "Proc,";
2423 case st_Block
: return "Block,";
2424 case st_End
: return "End,";
2425 case st_Member
: return "Member,";
2426 case st_Typedef
: return "Typedef,";
2427 case st_File
: return "File,";
2428 case st_RegReloc
: return "RegReloc,";
2429 case st_Forward
: return "Forward,";
2430 case st_StaticProc
: return "StaticProc,";
2431 case st_Constant
: return "Constant,";
2432 case st_Str
: return "String,";
2433 case st_Number
: return "Number,";
2434 case st_Expr
: return "Expr,";
2435 case st_Type
: return "Type,";
2436 case st_Max
: return "Max,";
2444 /* Parse .begin directives which have a label as the first argument
2445 which gives the location of the start of the block. */
2448 ecoff_directive_begin (ignore
)
2454 if (cur_file_ptr
== (efdr_t
*) NULL
)
2456 as_warn (_(".begin directive without a preceding .file directive"));
2457 demand_empty_rest_of_line ();
2461 if (cur_proc_ptr
== (proc_t
*) NULL
)
2463 as_warn (_(".begin directive without a preceding .ent directive"));
2464 demand_empty_rest_of_line ();
2468 name
= input_line_pointer
;
2469 name_end
= get_symbol_end ();
2471 (void) add_ecoff_symbol ((const char *) NULL
, st_Block
, sc_Text
,
2472 symbol_find_or_make (name
),
2473 (bfd_vma
) 0, (symint_t
) 0, (symint_t
) 0);
2475 *input_line_pointer
= name_end
;
2477 /* The line number follows, but we don't use it. */
2478 (void) get_absolute_expression ();
2479 demand_empty_rest_of_line ();
2482 /* Parse .bend directives which have a label as the first argument
2483 which gives the location of the end of the block. */
2486 ecoff_directive_bend (ignore
)
2493 if (cur_file_ptr
== (efdr_t
*) NULL
)
2495 as_warn (_(".bend directive without a preceding .file directive"));
2496 demand_empty_rest_of_line ();
2500 if (cur_proc_ptr
== (proc_t
*) NULL
)
2502 as_warn (_(".bend directive without a preceding .ent directive"));
2503 demand_empty_rest_of_line ();
2507 name
= input_line_pointer
;
2508 name_end
= get_symbol_end ();
2510 /* The value is the distance between the .bend directive and the
2511 corresponding symbol. We fill in the offset when we write out
2513 endsym
= symbol_find (name
);
2514 if (endsym
== (symbolS
*) NULL
)
2515 as_warn (_(".bend directive names unknown symbol"));
2517 (void) add_ecoff_symbol ((const char *) NULL
, st_End
, sc_Text
, endsym
,
2518 (bfd_vma
) 0, (symint_t
) 0, (symint_t
) 0);
2520 *input_line_pointer
= name_end
;
2522 /* The line number follows, but we don't use it. */
2523 (void) get_absolute_expression ();
2524 demand_empty_rest_of_line ();
2527 /* COFF debugging information is provided as a series of directives
2528 (.def, .scl, etc.). We build up information as we read the
2529 directives in the following static variables, and file it away when
2530 we reach the .endef directive. */
2531 static char *coff_sym_name
;
2532 static type_info_t coff_type
;
2533 static sc_t coff_storage_class
;
2534 static st_t coff_symbol_typ
;
2535 static int coff_is_function
;
2536 static char *coff_tag
;
2537 static valueT coff_value
;
2538 static symbolS
*coff_sym_value
;
2539 static bfd_vma coff_sym_addend
;
2540 static int coff_inside_enumeration
;
2542 /* Handle a .def directive: start defining a symbol. */
2545 ecoff_directive_def (ignore
)
2551 ecoff_debugging_seen
= 1;
2555 name
= input_line_pointer
;
2556 name_end
= get_symbol_end ();
2558 if (coff_sym_name
!= (char *) NULL
)
2559 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2560 else if (*name
== '\0')
2561 as_warn (_("Empty symbol name in .def; ignored"));
2564 if (coff_sym_name
!= (char *) NULL
)
2565 free (coff_sym_name
);
2566 if (coff_tag
!= (char *) NULL
)
2568 coff_sym_name
= (char *) xmalloc ((unsigned long) (strlen (name
) + 1));
2569 strcpy (coff_sym_name
, name
);
2570 coff_type
= type_info_init
;
2571 coff_storage_class
= sc_Nil
;
2572 coff_symbol_typ
= st_Nil
;
2573 coff_is_function
= 0;
2574 coff_tag
= (char *) NULL
;
2576 coff_sym_value
= (symbolS
*) NULL
;
2577 coff_sym_addend
= 0;
2580 *input_line_pointer
= name_end
;
2582 demand_empty_rest_of_line ();
2585 /* Handle a .dim directive, used to give dimensions for an array. The
2586 arguments are comma separated numbers. mips-tfile assumes that
2587 there will not be more than 6 dimensions, and gdb won't read any
2588 more than that anyhow, so I will also make that assumption. */
2591 ecoff_directive_dim (ignore
)
2597 if (coff_sym_name
== (char *) NULL
)
2599 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2600 demand_empty_rest_of_line ();
2604 for (i
= 0; i
< N_TQ
; i
++)
2607 dimens
[i
] = get_absolute_expression ();
2608 if (*input_line_pointer
== ',')
2609 ++input_line_pointer
;
2612 if (*input_line_pointer
!= '\n'
2613 && *input_line_pointer
!= ';')
2614 as_warn (_("Badly formed .dim directive"));
2622 /* The dimensions are stored away in reverse order. */
2625 if (coff_type
.num_dims
>= N_TQ
)
2627 as_warn (_("Too many .dim entries"));
2630 coff_type
.dimensions
[coff_type
.num_dims
] = dimens
[i
];
2631 ++coff_type
.num_dims
;
2634 demand_empty_rest_of_line ();
2637 /* Handle a .scl directive, which sets the COFF storage class of the
2641 ecoff_directive_scl (ignore
)
2646 if (coff_sym_name
== (char *) NULL
)
2648 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2649 demand_empty_rest_of_line ();
2653 val
= get_absolute_expression ();
2655 coff_symbol_typ
= map_coff_sym_type
[val
];
2656 coff_storage_class
= map_coff_storage
[val
];
2658 demand_empty_rest_of_line ();
2661 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2662 .size can have multiple arguments. We humor it, although gcc will
2663 never generate more than one argument. */
2666 ecoff_directive_size (ignore
)
2672 if (coff_sym_name
== (char *) NULL
)
2674 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2675 demand_empty_rest_of_line ();
2679 for (i
= 0; i
< N_TQ
; i
++)
2682 sizes
[i
] = get_absolute_expression ();
2683 if (*input_line_pointer
== ',')
2684 ++input_line_pointer
;
2687 if (*input_line_pointer
!= '\n'
2688 && *input_line_pointer
!= ';')
2689 as_warn (_("Badly formed .size directive"));
2697 /* The sizes are stored away in reverse order. */
2700 if (coff_type
.num_sizes
>= N_TQ
)
2702 as_warn (_("Too many .size entries"));
2705 coff_type
.sizes
[coff_type
.num_sizes
] = sizes
[i
];
2706 ++coff_type
.num_sizes
;
2709 demand_empty_rest_of_line ();
2712 /* Handle the .type directive, which gives the COFF type of the
2716 ecoff_directive_type (ignore
)
2723 if (coff_sym_name
== (char *) NULL
)
2725 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2726 demand_empty_rest_of_line ();
2730 val
= get_absolute_expression ();
2732 coff_type
.orig_type
= BTYPE (val
);
2733 coff_type
.basic_type
= map_coff_types
[coff_type
.orig_type
];
2735 tq_ptr
= &coff_type
.type_qualifiers
[N_TQ
];
2736 while (val
&~ N_BTMASK
)
2738 if (tq_ptr
== &coff_type
.type_qualifiers
[0])
2740 /* FIXME: We could handle this by setting the continued bit.
2741 There would still be a limit: the .type argument can not
2743 as_warn (_("The type of %s is too complex; it will be simplified"),
2749 else if (ISFCN (val
))
2750 *--tq_ptr
= tq_Proc
;
2751 else if (ISARY (val
))
2752 *--tq_ptr
= tq_Array
;
2754 as_fatal (_("Unrecognized .type argument"));
2759 tq_shft
= &coff_type
.type_qualifiers
[0];
2760 while (tq_ptr
!= &coff_type
.type_qualifiers
[N_TQ
])
2761 *tq_shft
++ = *tq_ptr
++;
2763 if (tq_shft
!= &coff_type
.type_qualifiers
[0] && tq_shft
[-1] == tq_Proc
)
2765 /* If this is a function, ignore it, so that we don't get two
2766 entries (one from the .ent, and one for the .def that
2767 precedes it). Save the type information so that the end
2768 block can properly add it after the begin block index. For
2769 MIPS knows what reason, we must strip off the function type
2771 coff_is_function
= 1;
2772 tq_shft
[-1] = tq_Nil
;
2775 while (tq_shft
!= &coff_type
.type_qualifiers
[N_TQ
])
2776 *tq_shft
++ = tq_Nil
;
2778 demand_empty_rest_of_line ();
2781 /* Handle the .tag directive, which gives the name of a structure,
2785 ecoff_directive_tag (ignore
)
2791 if (coff_sym_name
== (char *) NULL
)
2793 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2794 demand_empty_rest_of_line ();
2798 name
= input_line_pointer
;
2799 name_end
= get_symbol_end ();
2801 coff_tag
= (char *) xmalloc ((unsigned long) (strlen (name
) + 1));
2802 strcpy (coff_tag
, name
);
2804 *input_line_pointer
= name_end
;
2806 demand_empty_rest_of_line ();
2809 /* Handle the .val directive, which gives the value of the symbol. It
2810 may be the name of a static or global symbol. */
2813 ecoff_directive_val (ignore
)
2818 if (coff_sym_name
== (char *) NULL
)
2820 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2821 demand_empty_rest_of_line ();
2826 if (exp
.X_op
!= O_constant
&& exp
.X_op
!= O_symbol
)
2828 as_bad (_(".val expression is too copmlex"));
2829 demand_empty_rest_of_line ();
2833 if (exp
.X_op
== O_constant
)
2834 coff_value
= exp
.X_add_number
;
2837 coff_sym_value
= exp
.X_add_symbol
;
2838 coff_sym_addend
= exp
.X_add_number
;
2841 demand_empty_rest_of_line ();
2844 /* Handle the .endef directive, which terminates processing of COFF
2845 debugging information for a symbol. */
2848 ecoff_directive_endef (ignore
)
2855 demand_empty_rest_of_line ();
2857 if (coff_sym_name
== (char *) NULL
)
2859 as_warn (_(".endef pseudo-op used before .def; ignored"));
2863 name
= coff_sym_name
;
2864 coff_sym_name
= (char *) NULL
;
2866 /* If the symbol is a static or external, we have already gotten the
2867 appropriate type and class, so make sure we don't override those
2868 values. This is needed because there are some type and classes
2869 that are not in COFF, such as short data, etc. */
2870 if (coff_sym_value
!= (symbolS
*) NULL
)
2872 coff_symbol_typ
= st_Nil
;
2873 coff_storage_class
= sc_Nil
;
2876 coff_type
.extra_sizes
= coff_tag
!= (char *) NULL
;
2877 if (coff_type
.num_dims
> 0)
2879 int diff
= coff_type
.num_dims
- coff_type
.num_sizes
;
2880 int i
= coff_type
.num_dims
- 1;
2883 if (coff_type
.num_sizes
!= 1 || diff
< 0)
2885 as_warn (_("Bad COFF debugging info"));
2889 /* If this is an array, make sure the same number of dimensions
2890 and sizes were passed, creating extra sizes for multiply
2891 dimensioned arrays if not passed. */
2892 coff_type
.extra_sizes
= 0;
2895 j
= (sizeof (coff_type
.sizes
) / sizeof (coff_type
.sizes
[0])) - 1;
2898 coff_type
.sizes
[j
] = (((j
- diff
) >= 0)
2899 ? coff_type
.sizes
[j
- diff
]
2904 coff_type
.num_sizes
= i
+ 1;
2905 for (i
--; i
>= 0; i
--)
2906 coff_type
.sizes
[i
] = (coff_type
.dimensions
[i
+ 1] == 0
2908 : (coff_type
.sizes
[i
+ 1]
2909 / coff_type
.dimensions
[i
+ 1]));
2912 else if (coff_symbol_typ
== st_Member
2913 && coff_type
.num_sizes
- coff_type
.extra_sizes
== 1)
2915 /* Is this a bitfield? This is indicated by a structure memeber
2916 having a size field that isn't an array. */
2917 coff_type
.bitfield
= 1;
2920 /* Except for enumeration members & begin/ending of scopes, put the
2921 type word in the aux. symbol table. */
2922 if (coff_symbol_typ
== st_Block
|| coff_symbol_typ
== st_End
)
2924 else if (coff_inside_enumeration
)
2925 indx
= cur_file_ptr
->void_type
;
2928 if (coff_type
.basic_type
== bt_Struct
2929 || coff_type
.basic_type
== bt_Union
2930 || coff_type
.basic_type
== bt_Enum
)
2932 if (coff_tag
== (char *) NULL
)
2934 as_warn (_("No tag specified for %s"), name
);
2938 coff_type
.tag_ptr
= get_tag (coff_tag
, (localsym_t
*) NULL
,
2939 coff_type
.basic_type
);
2942 if (coff_is_function
)
2944 last_func_type_info
= coff_type
;
2945 last_func_sym_value
= coff_sym_value
;
2949 indx
= add_aux_sym_tir (&coff_type
,
2951 &cur_file_ptr
->thash_head
[0]);
2954 /* Do any last minute adjustments that are necessary. */
2955 switch (coff_symbol_typ
)
2960 /* For the beginning of structs, unions, and enumerations, the
2961 size info needs to be passed in the value field. */
2963 if (coff_type
.num_sizes
- coff_type
.num_dims
- coff_type
.extra_sizes
2966 as_warn (_("Bad COFF debugging information"));
2970 coff_value
= coff_type
.sizes
[0];
2972 coff_inside_enumeration
= (coff_type
.orig_type
== T_ENUM
);
2975 /* For the end of structs, unions, and enumerations, omit the
2976 name which is always ".eos". This needs to be done last, so
2977 that any error reporting above gives the correct name. */
2980 name
= (char *) NULL
;
2982 coff_inside_enumeration
= 0;
2985 /* Members of structures and unions that aren't bitfields, need
2986 to adjust the value from a byte offset to a bit offset.
2987 Members of enumerations do not have the value adjusted, and
2988 can be distinguished by indx == indexNil. For enumerations,
2989 update the maximum enumeration value. */
2991 if (! coff_type
.bitfield
&& ! coff_inside_enumeration
)
2997 /* Add the symbol. */
2998 sym
= add_ecoff_symbol (name
,
3003 (symint_t
) coff_value
,
3006 /* deal with struct, union, and enum tags. */
3007 if (coff_symbol_typ
== st_Block
)
3009 /* Create or update the tag information. */
3010 tag_t
*tag_ptr
= get_tag (name
,
3012 coff_type
.basic_type
);
3015 /* Remember any forward references. */
3016 for (pf
= &sym
->forward_ref
;
3017 *pf
!= (forward_t
*) NULL
;
3020 *pf
= tag_ptr
->forward_ref
;
3021 tag_ptr
->forward_ref
= (forward_t
*) NULL
;
3025 /* Parse .end directives. */
3028 ecoff_directive_end (ignore
)
3036 if (cur_file_ptr
== (efdr_t
*) NULL
)
3038 as_warn (_(".end directive without a preceding .file directive"));
3039 demand_empty_rest_of_line ();
3043 if (cur_proc_ptr
== (proc_t
*) NULL
)
3045 as_warn (_(".end directive without a preceding .ent directive"));
3046 demand_empty_rest_of_line ();
3050 name
= input_line_pointer
;
3051 name_end
= get_symbol_end ();
3054 if (! is_name_beginner (ch
))
3056 as_warn (_(".end directive has no name"));
3057 *input_line_pointer
= name_end
;
3058 demand_empty_rest_of_line ();
3062 /* The value is the distance between the .end directive and the
3063 corresponding symbol. We create a fake symbol to hold the
3064 current location, and put in the offset when we write out the
3066 ent
= symbol_find (name
);
3067 if (ent
== (symbolS
*) NULL
)
3068 as_warn (_(".end directive names unknown symbol"));
3070 (void) add_ecoff_symbol ((const char *) NULL
, st_End
, sc_Text
,
3071 symbol_new ("L0\001", now_seg
,
3072 (valueT
) frag_now_fix (),
3074 (bfd_vma
) 0, (symint_t
) 0, (symint_t
) 0);
3076 cur_proc_ptr
= (proc_t
*) NULL
;
3078 *input_line_pointer
= name_end
;
3079 demand_empty_rest_of_line ();
3082 /* Parse .ent directives. */
3085 ecoff_directive_ent (ignore
)
3092 if (cur_file_ptr
== (efdr_t
*) NULL
)
3093 add_file ((const char *) NULL
, 0, 1);
3095 if (cur_proc_ptr
!= (proc_t
*) NULL
)
3097 as_warn (_("second .ent directive found before .end directive"));
3098 demand_empty_rest_of_line ();
3102 name
= input_line_pointer
;
3103 name_end
= get_symbol_end ();
3106 if (! is_name_beginner (ch
))
3108 as_warn (_(".ent directive has no name"));
3109 *input_line_pointer
= name_end
;
3110 demand_empty_rest_of_line ();
3114 add_procedure (name
);
3116 *input_line_pointer
= name_end
;
3118 /* The .ent directive is sometimes followed by a number. I'm not
3119 really sure what the number means. I don't see any way to store
3120 the information in the PDR. The Irix 4 assembler seems to ignore
3123 if (*input_line_pointer
== ',')
3125 ++input_line_pointer
;
3128 if (isdigit ((unsigned char) *input_line_pointer
)
3129 || *input_line_pointer
== '-')
3130 (void) get_absolute_expression ();
3132 demand_empty_rest_of_line ();
3135 /* Parse .extern directives. */
3138 ecoff_directive_extern (ignore
)
3146 name
= input_line_pointer
;
3147 c
= get_symbol_end ();
3148 symbolp
= symbol_find_or_make (name
);
3149 *input_line_pointer
= c
;
3151 S_SET_EXTERNAL (symbolp
);
3153 if (*input_line_pointer
== ',')
3154 ++input_line_pointer
;
3155 size
= get_absolute_expression ();
3157 symbol_get_obj (symbolp
)->ecoff_extern_size
= size
;
3160 /* Parse .file directives. */
3163 ecoff_directive_file (ignore
)
3170 if (cur_proc_ptr
!= (proc_t
*) NULL
)
3172 as_warn (_("No way to handle .file within .ent/.end section"));
3173 demand_empty_rest_of_line ();
3177 indx
= (int) get_absolute_expression ();
3179 /* FIXME: we don't have to save the name here. */
3180 name
= demand_copy_C_string (&len
);
3182 add_file (name
, indx
- 1, 0);
3184 demand_empty_rest_of_line ();
3187 /* Parse .fmask directives. */
3190 ecoff_directive_fmask (ignore
)
3195 if (cur_proc_ptr
== (proc_t
*) NULL
)
3197 as_warn (_(".fmask outside of .ent"));
3198 demand_empty_rest_of_line ();
3202 if (get_absolute_expression_and_terminator (&val
) != ',')
3204 as_warn (_("Bad .fmask directive"));
3205 --input_line_pointer
;
3206 demand_empty_rest_of_line ();
3210 cur_proc_ptr
->pdr
.fregmask
= val
;
3211 cur_proc_ptr
->pdr
.fregoffset
= get_absolute_expression ();
3213 demand_empty_rest_of_line ();
3216 /* Parse .frame directives. */
3219 ecoff_directive_frame (ignore
)
3224 if (cur_proc_ptr
== (proc_t
*) NULL
)
3226 as_warn (_(".frame outside of .ent"));
3227 demand_empty_rest_of_line ();
3231 cur_proc_ptr
->pdr
.framereg
= tc_get_register (1);
3234 if (*input_line_pointer
++ != ','
3235 || get_absolute_expression_and_terminator (&val
) != ',')
3237 as_warn (_("Bad .frame directive"));
3238 --input_line_pointer
;
3239 demand_empty_rest_of_line ();
3243 cur_proc_ptr
->pdr
.frameoffset
= val
;
3245 cur_proc_ptr
->pdr
.pcreg
= tc_get_register (0);
3247 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3248 to Sandro. I don't yet know where this value should be stored, if
3250 demand_empty_rest_of_line ();
3256 /* Parse .mask directives. */
3259 ecoff_directive_mask (ignore
)
3264 if (cur_proc_ptr
== (proc_t
*) NULL
)
3266 as_warn (_(".mask outside of .ent"));
3267 demand_empty_rest_of_line ();
3271 if (get_absolute_expression_and_terminator (&val
) != ',')
3273 as_warn (_("Bad .mask directive"));
3274 --input_line_pointer
;
3275 demand_empty_rest_of_line ();
3279 cur_proc_ptr
->pdr
.regmask
= val
;
3280 cur_proc_ptr
->pdr
.regoffset
= get_absolute_expression ();
3282 demand_empty_rest_of_line ();
3285 /* Parse .loc directives. */
3288 ecoff_directive_loc (ignore
)
3291 lineno_list_t
*list
;
3294 if (cur_file_ptr
== (efdr_t
*) NULL
)
3296 as_warn (_(".loc before .file"));
3297 demand_empty_rest_of_line ();
3301 if (now_seg
!= text_section
)
3303 as_warn (_(".loc outside of .text"));
3304 demand_empty_rest_of_line ();
3308 /* Skip the file number. */
3310 get_absolute_expression ();
3313 lineno
= get_absolute_expression ();
3317 listing_source_line (lineno
);
3320 /* If we're building stabs, then output a special label rather than
3321 ECOFF line number info. */
3324 (void) add_ecoff_symbol ((char *) NULL
, st_Label
, sc_Text
,
3325 symbol_new ("L0\001", now_seg
,
3326 (valueT
) frag_now_fix (),
3328 (bfd_vma
) 0, 0, lineno
);
3332 list
= allocate_lineno_list ();
3334 list
->next
= (lineno_list_t
*) NULL
;
3335 list
->file
= cur_file_ptr
;
3336 list
->proc
= cur_proc_ptr
;
3337 list
->frag
= frag_now
;
3338 list
->paddr
= frag_now_fix ();
3339 list
->lineno
= lineno
;
3341 /* We don't want to merge files which have line numbers. */
3342 cur_file_ptr
->fdr
.fMerge
= 0;
3344 /* A .loc directive will sometimes appear before a .ent directive,
3345 which means that cur_proc_ptr will be NULL here. Arrange to
3347 if (cur_proc_ptr
== (proc_t
*) NULL
)
3351 pl
= &noproc_lineno
;
3352 while (*pl
!= (lineno_list_t
*) NULL
)
3359 *last_lineno_ptr
= list
;
3360 last_lineno_ptr
= &list
->next
;
3364 /* The MIPS assembler sometimes inserts nop instructions in the
3365 instruction stream. When this happens, we must patch up the .loc
3366 information so that it points to the instruction after the nop. */
3369 ecoff_fix_loc (old_frag
, old_frag_offset
)
3371 unsigned long old_frag_offset
;
3373 if (last_lineno
!= NULL
3374 && last_lineno
->frag
== old_frag
3375 && last_lineno
->paddr
== old_frag_offset
)
3377 last_lineno
->frag
= frag_now
;
3378 last_lineno
->paddr
= frag_now_fix ();
3382 /* Make sure the @stabs symbol is emitted. */
3390 /* Add a dummy @stabs dymbol. */
3392 (void) add_ecoff_symbol (stabs_symbol
, stNil
, scInfo
,
3394 (bfd_vma
) 0, (symint_t
) -1,
3395 ECOFF_MARK_STAB (0));
3399 /* Parse .weakext directives. */
3401 /* For TC_MIPS use the version in tc-mips.c. */
3403 ecoff_directive_weakext (ignore
)
3411 name
= input_line_pointer
;
3412 c
= get_symbol_end ();
3413 symbolP
= symbol_find_or_make (name
);
3414 *input_line_pointer
= c
;
3418 if (*input_line_pointer
== ',')
3420 if (S_IS_DEFINED (symbolP
))
3422 as_bad (_("Ignoring attempt to redefine symbol `%s'."),
3423 S_GET_NAME (symbolP
));
3424 ignore_rest_of_line ();
3428 ++input_line_pointer
;
3430 if (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3433 if (exp
.X_op
!= O_symbol
)
3435 as_bad (_("bad .weakext directive"));
3436 ignore_rest_of_line();
3439 symbol_set_value_expression (symbolP
, &exp
);
3443 S_SET_WEAK (symbolP
);
3445 demand_empty_rest_of_line ();
3447 #endif /* not TC_MIPS */
3449 /* Handle .stabs directives. The actual parsing routine is done by a
3450 generic routine. This routine is called via OBJ_PROCESS_STAB.
3451 When this is called, input_line_pointer will be pointing at the
3452 value field of the stab.
3454 .stabs directives have five fields:
3455 "string" a string, encoding the type information.
3456 code a numeric code, defined in <stab.h>
3458 desc a zero or line number
3459 value a numeric value or an address.
3461 If the value is relocatable, we transform this into:
3462 iss points as an index into string space
3463 value value from lookup of the name
3464 st st from lookup of the name
3465 sc sc from lookup of the name
3466 index code|CODE_MASK
3468 If the value is not relocatable, we transform this into:
3469 iss points as an index into string space
3473 index code|CODE_MASK
3475 .stabn directives have four fields (string is null):
3476 code a numeric code, defined in <stab.h>
3478 desc a zero or a line number
3479 value a numeric value or an address. */
3482 ecoff_stab (sec
, what
, string
, type
, other
, desc
)
3490 efdr_t
*save_file_ptr
= cur_file_ptr
;
3497 localsym_t
*hold
= NULL
;
3499 ecoff_debugging_seen
= 1;
3501 /* We don't handle .stabd. */
3502 if (what
!= 's' && what
!= 'n')
3504 as_bad (_(".stab%c is not supported"), what
);
3508 /* A .stabn uses a null name, not an empty string. */
3512 /* We ignore the other field. */
3514 as_warn (_(".stab%c: ignoring non-zero other field"), what
);
3516 /* Make sure we have a current file. */
3517 if (cur_file_ptr
== (efdr_t
*) NULL
)
3519 add_file ((const char *) NULL
, 0, 1);
3520 save_file_ptr
= cur_file_ptr
;
3523 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3525 if (stabs_seen
== 0)
3528 /* Line number stabs are handled differently, since they have two
3529 values, the line number and the address of the label. We use the
3530 index field (aka desc) to hold the line number, and the value
3531 field to hold the address. The symbol type is st_Label, which
3532 should be different from the other stabs, so that gdb can
3534 if (type
== N_SLINE
)
3542 listing_source_line ((unsigned int) desc
);
3545 dummy_symr
.index
= desc
;
3546 if (dummy_symr
.index
!= desc
)
3548 as_warn (_("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3553 name
= input_line_pointer
;
3554 name_end
= get_symbol_end ();
3556 sym
= symbol_find_or_make (name
);
3557 *input_line_pointer
= name_end
;
3568 if (listing
&& (type
== N_SO
|| type
== N_SOL
))
3569 listing_source_file (string
);
3572 if (isdigit ((unsigned char) *input_line_pointer
)
3573 || *input_line_pointer
== '-'
3574 || *input_line_pointer
== '+')
3578 sym
= (symbolS
*) NULL
;
3579 value
= get_absolute_expression ();
3582 else if (! is_name_beginner ((unsigned char) *input_line_pointer
))
3584 as_warn (_("Illegal .stab%c directive, bad character"), what
);
3595 if (exp
.X_op
== O_constant
)
3598 value
= exp
.X_add_number
;
3601 else if (exp
.X_op
== O_symbol
)
3603 sym
= exp
.X_add_symbol
;
3605 addend
= exp
.X_add_number
;
3609 sym
= make_expr_symbol (&exp
);
3615 indx
= ECOFF_MARK_STAB (type
);
3618 /* Don't store the stabs symbol we are creating as the type of the
3619 ECOFF symbol. We want to compute the type of the ECOFF symbol
3621 if (sym
!= (symbolS
*) NULL
)
3622 hold
= symbol_get_obj (sym
)->ecoff_symbol
;
3624 (void) add_ecoff_symbol (string
, st
, sc
, sym
, addend
, value
, indx
);
3626 if (sym
!= (symbolS
*) NULL
)
3627 symbol_get_obj (sym
)->ecoff_symbol
= hold
;
3629 /* Restore normal file type. */
3630 cur_file_ptr
= save_file_ptr
;
3633 /* Frob an ECOFF symbol. Small common symbols go into a special
3634 .scommon section rather than bfd_com_section. */
3637 ecoff_frob_symbol (sym
)
3640 if (S_IS_COMMON (sym
)
3641 && S_GET_VALUE (sym
) > 0
3642 && S_GET_VALUE (sym
) <= bfd_get_gp_size (stdoutput
))
3644 static asection scom_section
;
3645 static asymbol scom_symbol
;
3647 /* We must construct a fake section similar to bfd_com_section
3648 but with the name .scommon. */
3649 if (scom_section
.name
== NULL
)
3651 scom_section
= bfd_com_section
;
3652 scom_section
.name
= ".scommon";
3653 scom_section
.output_section
= &scom_section
;
3654 scom_section
.symbol
= &scom_symbol
;
3655 scom_section
.symbol_ptr_ptr
= &scom_section
.symbol
;
3656 scom_symbol
= *bfd_com_section
.symbol
;
3657 scom_symbol
.name
= ".scommon";
3658 scom_symbol
.section
= &scom_section
;
3660 S_SET_SEGMENT (sym
, &scom_section
);
3663 /* Double check weak symbols. */
3664 if (S_IS_WEAK (sym
))
3666 if (S_IS_COMMON (sym
))
3667 as_bad (_("Symbol `%s' can not be both weak and common"),
3672 /* Add bytes to the symbolic information buffer. */
3675 ecoff_add_bytes (buf
, bufend
, bufptr
, need
)
3685 need
-= *bufend
- bufptr
;
3686 if (need
< PAGE_SIZE
)
3688 want
= (*bufend
- *buf
) + need
;
3689 *buf
= xrealloc (*buf
, want
);
3690 *bufend
= *buf
+ want
;
3694 /* Adjust the symbolic information buffer to the alignment required
3695 for the ECOFF target debugging information. */
3697 static unsigned long
3698 ecoff_padding_adjust (backend
, buf
, bufend
, offset
, bufptrptr
)
3699 const struct ecoff_debug_swap
*backend
;
3702 unsigned long offset
;
3705 bfd_size_type align
;
3707 align
= backend
->debug_align
;
3708 if ((offset
& (align
- 1)) != 0)
3712 add
= align
- (offset
& (align
- 1));
3713 if (*bufend
- (*buf
+ offset
) < add
)
3714 (void) ecoff_add_bytes (buf
, bufend
, *buf
+ offset
, add
);
3715 memset (*buf
+ offset
, 0, add
);
3717 if (bufptrptr
!= (char **) NULL
)
3718 *bufptrptr
= *buf
+ offset
;
3724 /* Build the line number information. */
3726 static unsigned long
3727 ecoff_build_lineno (backend
, buf
, bufend
, offset
, linecntptr
)
3728 const struct ecoff_debug_swap
*backend
;
3731 unsigned long offset
;
3735 register lineno_list_t
*l
;
3736 lineno_list_t
*last
;
3742 lineno_list_t first
;
3743 lineno_list_t
*local_first_lineno
= first_lineno
;
3745 if (linecntptr
!= (long *) NULL
)
3748 bufptr
= *buf
+ offset
;
3750 file
= (efdr_t
*) NULL
;
3751 proc
= (proc_t
*) NULL
;
3752 last
= (lineno_list_t
*) NULL
;
3757 /* For some reason the address of the first procedure is ignored
3758 when reading line numbers. This doesn't matter if the address of
3759 the first procedure is 0, but when gcc is generating MIPS
3760 embedded PIC code, it will put strings in the .text section
3761 before the first procedure. We cope by inserting a dummy line if
3762 the address of the first procedure is not 0. Hopefully this
3763 won't screw things up too badly.
3765 Don't do this for ECOFF assembly source line numbers. They work
3766 without this extra attention. */
3767 if (debug_type
!= DEBUG_ECOFF
3768 && first_proc_ptr
!= (proc_t
*) NULL
3769 && local_first_lineno
!= (lineno_list_t
*) NULL
3770 && ((S_GET_VALUE (first_proc_ptr
->sym
->as_sym
)
3771 + bfd_get_section_vma (stdoutput
,
3772 S_GET_SEGMENT (first_proc_ptr
->sym
->as_sym
)))
3775 first
.file
= local_first_lineno
->file
;
3776 first
.proc
= local_first_lineno
->proc
;
3777 first
.frag
= &zero_address_frag
;
3781 first
.next
= local_first_lineno
;
3782 local_first_lineno
= &first
;
3785 for (l
= local_first_lineno
; l
!= (lineno_list_t
*) NULL
; l
= l
->next
)
3790 /* Get the offset to the memory address of the next line number
3791 (in words). Do this first, so that we can skip ahead to the
3792 next useful line number entry. */
3793 if (l
->next
== (lineno_list_t
*) NULL
)
3795 /* We want a count of zero, but it will be decremented
3796 before it is used. */
3799 else if (l
->next
->frag
->fr_address
+ l
->next
->paddr
3800 > l
->frag
->fr_address
+ l
->paddr
)
3802 count
= ((l
->next
->frag
->fr_address
+ l
->next
->paddr
3803 - (l
->frag
->fr_address
+ l
->paddr
))
3808 /* Don't change last, so we still get the right delta. */
3812 if (l
->file
!= file
|| l
->proc
!= proc
)
3814 if (l
->proc
!= proc
&& proc
!= (proc_t
*) NULL
)
3815 proc
->pdr
.lnHigh
= last
->lineno
;
3816 if (l
->file
!= file
&& file
!= (efdr_t
*) NULL
)
3818 file
->fdr
.cbLine
= c
- file
->fdr
.cbLineOffset
;
3819 file
->fdr
.cline
= totcount
+ count
;
3820 if (linecntptr
!= (long *) NULL
)
3821 *linecntptr
+= totcount
+ count
;
3825 if (l
->file
!= file
)
3827 efdr_t
*last_file
= file
;
3830 if (last_file
!= (efdr_t
*) NULL
)
3832 = last_file
->fdr
.ilineBase
+ last_file
->fdr
.cline
;
3834 file
->fdr
.ilineBase
= 0;
3835 file
->fdr
.cbLineOffset
= c
;
3837 if (l
->proc
!= proc
)
3840 if (proc
!= (proc_t
*) NULL
)
3842 proc
->pdr
.lnLow
= l
->lineno
;
3843 proc
->pdr
.cbLineOffset
= c
- file
->fdr
.cbLineOffset
;
3844 proc
->pdr
.iline
= totcount
;
3848 last
= (lineno_list_t
*) NULL
;
3853 /* Get the offset to this line number. */
3854 if (last
== (lineno_list_t
*) NULL
)
3857 delta
= l
->lineno
- last
->lineno
;
3859 /* Put in the offset to this line number. */
3864 /* 1 is added to each count read. */
3866 /* We can only adjust the word count by up to 15 words at a
3878 if (delta
>= -7 && delta
<= 7)
3880 if (bufptr
>= *bufend
)
3881 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 1);
3882 *bufptr
++ = setcount
+ (delta
<< 4);
3890 if (*bufend
- bufptr
< 3)
3891 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 3);
3892 *bufptr
++ = setcount
+ (8 << 4);
3893 if (delta
< -0x8000)
3898 else if (delta
> 0x7fff)
3908 *bufptr
++ = set
>> 8;
3909 *bufptr
++ = set
& 0xffff;
3914 /* Finish adjusting the count. */
3917 if (bufptr
>= *bufend
)
3918 bufptr
= ecoff_add_bytes (buf
, bufend
, bufptr
, (long) 1);
3919 /* 1 is added to each count read. */
3938 if (proc
!= (proc_t
*) NULL
)
3939 proc
->pdr
.lnHigh
= last
->lineno
;
3940 if (file
!= (efdr_t
*) NULL
)
3942 file
->fdr
.cbLine
= c
- file
->fdr
.cbLineOffset
;
3943 file
->fdr
.cline
= totcount
;
3946 if (linecntptr
!= (long *) NULL
)
3947 *linecntptr
+= totcount
;
3949 c
= ecoff_padding_adjust (backend
, buf
, bufend
, c
, &bufptr
);
3954 /* Build and swap out the symbols. */
3956 static unsigned long
3957 ecoff_build_symbols (backend
, buf
, bufend
, offset
)
3958 const struct ecoff_debug_swap
*backend
;
3961 unsigned long offset
;
3963 const bfd_size_type external_sym_size
= backend
->external_sym_size
;
3964 void (* const swap_sym_out
) PARAMS ((bfd
*, const SYMR
*, PTR
))
3965 = backend
->swap_sym_out
;
3968 vlinks_t
*file_link
;
3970 sym_out
= *buf
+ offset
;
3974 /* The symbols are stored by file. */
3975 for (file_link
= file_desc
.first
;
3976 file_link
!= (vlinks_t
*) NULL
;
3977 file_link
= file_link
->next
)
3984 if (file_link
->next
== (vlinks_t
*) NULL
)
3985 fil_cnt
= file_desc
.objects_last_page
;
3987 fil_cnt
= file_desc
.objects_per_page
;
3988 fil_ptr
= file_link
->datum
->file
;
3989 fil_end
= fil_ptr
+ fil_cnt
;
3990 for (; fil_ptr
< fil_end
; fil_ptr
++)
3994 fil_ptr
->fdr
.isymBase
= isym
;
3996 for (sym_link
= fil_ptr
->symbols
.first
;
3997 sym_link
!= (vlinks_t
*) NULL
;
3998 sym_link
= sym_link
->next
)
4001 localsym_t
*sym_ptr
;
4002 localsym_t
*sym_end
;
4004 if (sym_link
->next
== (vlinks_t
*) NULL
)
4005 sym_cnt
= fil_ptr
->symbols
.objects_last_page
;
4007 sym_cnt
= fil_ptr
->symbols
.objects_per_page
;
4008 sym_ptr
= sym_link
->datum
->sym
;
4009 sym_end
= sym_ptr
+ sym_cnt
;
4010 for (; sym_ptr
< sym_end
; sym_ptr
++)
4016 know (sym_ptr
->file_ptr
== fil_ptr
);
4018 /* If there is no associated gas symbol, then this
4019 is a pure debugging symbol. We have already
4020 added the name (if any) to fil_ptr->strings.
4021 Otherwise we must decide whether this is an
4022 external or a local symbol (actually, it may be
4023 both if the local provides additional debugging
4024 information for the external). */
4026 as_sym
= sym_ptr
->as_sym
;
4027 if (as_sym
!= (symbolS
*) NULL
)
4031 /* The value of a block start symbol is the
4032 offset from the start of the procedure. For
4033 other symbols we just use the gas value (but
4034 we must offset it by the vma of the section,
4035 just as BFD does, because BFD will not see
4037 if (sym_ptr
->ecoff_sym
.asym
.st
== (int) st_Block
4038 && sym_ptr
->ecoff_sym
.asym
.sc
== (int) sc_Text
)
4042 know (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
);
4043 begin_sym
= sym_ptr
->proc_ptr
->sym
->as_sym
;
4044 if (S_GET_SEGMENT (as_sym
)
4045 != S_GET_SEGMENT (begin_sym
))
4046 as_warn (_(".begin/.bend in different segments"));
4047 sym_ptr
->ecoff_sym
.asym
.value
=
4048 S_GET_VALUE (as_sym
) - S_GET_VALUE (begin_sym
);
4051 sym_ptr
->ecoff_sym
.asym
.value
=
4052 (S_GET_VALUE (as_sym
)
4053 + bfd_get_section_vma (stdoutput
,
4054 S_GET_SEGMENT (as_sym
))
4057 sym_ptr
->ecoff_sym
.weakext
= S_IS_WEAK (as_sym
);
4059 /* Set st_Proc to st_StaticProc for local
4061 if (sym_ptr
->ecoff_sym
.asym
.st
== st_Proc
4062 && S_IS_DEFINED (as_sym
)
4063 && ! S_IS_EXTERNAL (as_sym
)
4064 && ! S_IS_WEAK (as_sym
))
4065 sym_ptr
->ecoff_sym
.asym
.st
= st_StaticProc
;
4067 /* Get the type and storage class based on where
4068 the symbol actually wound up. Traditionally,
4069 N_LBRAC and N_RBRAC are *not* relocated. */
4070 indx
= sym_ptr
->ecoff_sym
.asym
.index
;
4071 if (sym_ptr
->ecoff_sym
.asym
.st
== st_Nil
4072 && sym_ptr
->ecoff_sym
.asym
.sc
== sc_Nil
4073 && (! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
)
4074 || ((ECOFF_UNMARK_STAB (indx
) != N_LBRAC
)
4075 && (ECOFF_UNMARK_STAB (indx
) != N_RBRAC
))))
4078 const char *segname
;
4082 seg
= S_GET_SEGMENT (as_sym
);
4083 segname
= segment_name (seg
);
4085 if (! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
)
4086 && (S_IS_EXTERNAL (as_sym
)
4087 || S_IS_WEAK (as_sym
)
4088 || ! S_IS_DEFINED (as_sym
)))
4090 if ((symbol_get_bfdsym (as_sym
)->flags
4091 & BSF_FUNCTION
) != 0)
4096 else if (seg
== text_section
)
4101 if (! S_IS_DEFINED (as_sym
))
4105 s
= symbol_get_obj (as_sym
)->ecoff_extern_size
;
4107 || s
> bfd_get_gp_size (stdoutput
))
4112 sym_ptr
->ecoff_sym
.asym
.value
= s
;
4115 S_SET_SIZE (as_sym
, s
);
4118 else if (S_IS_COMMON (as_sym
))
4120 if (S_GET_VALUE (as_sym
) > 0
4121 && (S_GET_VALUE (as_sym
)
4122 <= bfd_get_gp_size (stdoutput
)))
4127 else if (seg
== text_section
)
4129 else if (seg
== data_section
)
4131 else if (strcmp (segname
, ".rdata") == 0
4132 || strcmp (segname
, ".rodata") == 0)
4134 else if (strcmp (segname
, ".sdata") == 0)
4136 else if (seg
== bss_section
)
4138 else if (strcmp (segname
, ".sbss") == 0)
4140 else if (seg
== &bfd_abs_section
)
4144 /* This must be a user named section.
4145 This is not possible in ECOFF, but it
4150 sym_ptr
->ecoff_sym
.asym
.st
= (int) st
;
4151 sym_ptr
->ecoff_sym
.asym
.sc
= (int) sc
;
4154 /* This is just an external symbol if it is
4155 outside a procedure and it has a type.
4156 FIXME: g++ will generate symbols which have
4157 different names in the debugging information
4158 than the actual symbol. Should we handle
4160 if ((S_IS_EXTERNAL (as_sym
)
4161 || S_IS_WEAK (as_sym
)
4162 || ! S_IS_DEFINED (as_sym
))
4163 && sym_ptr
->proc_ptr
== (proc_t
*) NULL
4164 && sym_ptr
->ecoff_sym
.asym
.st
!= (int) st_Nil
4165 && ! ECOFF_IS_STAB (&sym_ptr
->ecoff_sym
.asym
))
4168 /* This is just an external symbol if it is a
4170 if (S_IS_COMMON (as_sym
))
4173 /* If an st_end symbol has an associated gas
4174 symbol, then it is a local label created for
4175 a .bend or .end directive. Stabs line
4176 numbers will have \001 in the names. */
4178 && sym_ptr
->ecoff_sym
.asym
.st
!= st_End
4179 && strchr (sym_ptr
->name
, '\001') == 0)
4180 sym_ptr
->ecoff_sym
.asym
.iss
=
4181 add_string (&fil_ptr
->strings
,
4187 /* We now know the index of this symbol; fill in
4188 locations that have been waiting for that
4190 if (sym_ptr
->begin_ptr
!= (localsym_t
*) NULL
)
4192 localsym_t
*begin_ptr
;
4196 begin_ptr
= sym_ptr
->begin_ptr
;
4197 know (begin_ptr
->sym_index
!= -1);
4198 sym_ptr
->ecoff_sym
.asym
.index
= begin_ptr
->sym_index
;
4199 if (sym_ptr
->ecoff_sym
.asym
.sc
!= (int) sc_Info
)
4200 sym_ptr
->ecoff_sym
.asym
.iss
=
4201 begin_ptr
->ecoff_sym
.asym
.iss
;
4203 begin_type
= begin_ptr
->ecoff_sym
.asym
.st
;
4204 if (begin_type
== st_File
4205 || begin_type
== st_Block
)
4207 begin_ptr
->ecoff_sym
.asym
.index
=
4208 isym
- ifilesym
+ 1;
4209 (*swap_sym_out
) (stdoutput
,
4210 &begin_ptr
->ecoff_sym
.asym
,
4213 + (begin_ptr
->sym_index
4214 * external_sym_size
)));
4218 know (begin_ptr
->index_ptr
!= (aux_t
*) NULL
);
4219 begin_ptr
->index_ptr
->data
.isym
=
4220 isym
- ifilesym
+ 1;
4223 /* The value of the symbol marking the end of a
4224 procedure is the size of the procedure. The
4225 value of the symbol marking the end of a
4226 block is the offset from the start of the
4227 procedure to the block. */
4228 if (begin_type
== st_Proc
4229 || begin_type
== st_StaticProc
)
4231 know (as_sym
!= (symbolS
*) NULL
);
4232 know (begin_ptr
->as_sym
!= (symbolS
*) NULL
);
4233 if (S_GET_SEGMENT (as_sym
)
4234 != S_GET_SEGMENT (begin_ptr
->as_sym
))
4235 as_warn (_(".begin/.bend in different segments"));
4236 sym_ptr
->ecoff_sym
.asym
.value
=
4237 (S_GET_VALUE (as_sym
)
4238 - S_GET_VALUE (begin_ptr
->as_sym
));
4240 /* If the size is odd, this is probably a
4241 mips16 function; force it to be even. */
4242 if ((sym_ptr
->ecoff_sym
.asym
.value
& 1) != 0)
4243 ++sym_ptr
->ecoff_sym
.asym
.value
;
4246 S_SET_SIZE (begin_ptr
->as_sym
,
4247 sym_ptr
->ecoff_sym
.asym
.value
);
4250 else if (begin_type
== st_Block
4251 && sym_ptr
->ecoff_sym
.asym
.sc
!= (int) sc_Info
)
4255 know (as_sym
!= (symbolS
*) NULL
);
4256 know (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
);
4257 begin_sym
= sym_ptr
->proc_ptr
->sym
->as_sym
;
4258 if (S_GET_SEGMENT (as_sym
)
4259 != S_GET_SEGMENT (begin_sym
))
4260 as_warn (_(".begin/.bend in different segments"));
4261 sym_ptr
->ecoff_sym
.asym
.value
=
4262 S_GET_VALUE (as_sym
) - S_GET_VALUE (begin_sym
);
4266 for (f
= sym_ptr
->forward_ref
;
4267 f
!= (forward_t
*) NULL
;
4271 f
->ifd_ptr
->data
.isym
= fil_ptr
->file_index
;
4272 f
->index_ptr
->data
.rndx
.index
= isym
- ifilesym
;
4277 if (*bufend
- sym_out
< external_sym_size
)
4278 sym_out
= ecoff_add_bytes (buf
, bufend
,
4281 (*swap_sym_out
) (stdoutput
, &sym_ptr
->ecoff_sym
.asym
,
4283 sym_out
+= external_sym_size
;
4285 sym_ptr
->sym_index
= isym
;
4287 if (sym_ptr
->proc_ptr
!= (proc_t
*) NULL
4288 && sym_ptr
->proc_ptr
->sym
== sym_ptr
)
4289 sym_ptr
->proc_ptr
->pdr
.isym
= isym
- ifilesym
;
4294 /* Record the local symbol index and file number in
4295 case this is an external symbol. Note that this
4296 destroys the asym.index field. */
4297 if (as_sym
!= (symbolS
*) NULL
4298 && symbol_get_obj (as_sym
)->ecoff_symbol
== sym_ptr
)
4300 if ((sym_ptr
->ecoff_sym
.asym
.st
== st_Proc
4301 || sym_ptr
->ecoff_sym
.asym
.st
== st_StaticProc
)
4303 sym_ptr
->ecoff_sym
.asym
.index
= isym
- ifilesym
- 1;
4304 sym_ptr
->ecoff_sym
.ifd
= fil_ptr
->file_index
;
4306 /* Don't try to merge an FDR which has an
4307 external symbol attached to it. */
4308 if (S_IS_EXTERNAL (as_sym
) || S_IS_WEAK (as_sym
))
4309 fil_ptr
->fdr
.fMerge
= 0;
4313 fil_ptr
->fdr
.csym
= isym
- fil_ptr
->fdr
.isymBase
;
4317 return offset
+ isym
* external_sym_size
;
4320 /* Swap out the procedure information. */
4322 static unsigned long
4323 ecoff_build_procs (backend
, buf
, bufend
, offset
)
4324 const struct ecoff_debug_swap
*backend
;
4327 unsigned long offset
;
4329 const bfd_size_type external_pdr_size
= backend
->external_pdr_size
;
4330 void (* const swap_pdr_out
) PARAMS ((bfd
*, const PDR
*, PTR
))
4331 = backend
->swap_pdr_out
;
4334 vlinks_t
*file_link
;
4336 pdr_out
= *buf
+ offset
;
4340 /* The procedures are stored by file. */
4341 for (file_link
= file_desc
.first
;
4342 file_link
!= (vlinks_t
*) NULL
;
4343 file_link
= file_link
->next
)
4349 if (file_link
->next
== (vlinks_t
*) NULL
)
4350 fil_cnt
= file_desc
.objects_last_page
;
4352 fil_cnt
= file_desc
.objects_per_page
;
4353 fil_ptr
= file_link
->datum
->file
;
4354 fil_end
= fil_ptr
+ fil_cnt
;
4355 for (; fil_ptr
< fil_end
; fil_ptr
++)
4357 vlinks_t
*proc_link
;
4360 fil_ptr
->fdr
.ipdFirst
= iproc
;
4362 for (proc_link
= fil_ptr
->procs
.first
;
4363 proc_link
!= (vlinks_t
*) NULL
;
4364 proc_link
= proc_link
->next
)
4370 if (proc_link
->next
== (vlinks_t
*) NULL
)
4371 prc_cnt
= fil_ptr
->procs
.objects_last_page
;
4373 prc_cnt
= fil_ptr
->procs
.objects_per_page
;
4374 proc_ptr
= proc_link
->datum
->proc
;
4375 proc_end
= proc_ptr
+ prc_cnt
;
4376 for (; proc_ptr
< proc_end
; proc_ptr
++)
4381 adr_sym
= proc_ptr
->sym
->as_sym
;
4382 adr
= (S_GET_VALUE (adr_sym
)
4383 + bfd_get_section_vma (stdoutput
,
4384 S_GET_SEGMENT (adr_sym
)));
4387 /* This code used to force the adr of the very
4388 first fdr to be 0. However, the native tools
4389 don't do that, and I can't remember why it
4390 used to work that way, so I took it out. */
4391 fil_ptr
->fdr
.adr
= adr
;
4394 proc_ptr
->pdr
.adr
= adr
- fil_ptr
->fdr
.adr
;
4395 if (*bufend
- pdr_out
< external_pdr_size
)
4396 pdr_out
= ecoff_add_bytes (buf
, bufend
,
4399 (*swap_pdr_out
) (stdoutput
, &proc_ptr
->pdr
, pdr_out
);
4400 pdr_out
+= external_pdr_size
;
4404 fil_ptr
->fdr
.cpd
= iproc
- fil_ptr
->fdr
.ipdFirst
;
4408 return offset
+ iproc
* external_pdr_size
;
4411 /* Swap out the aux information. */
4413 static unsigned long
4414 ecoff_build_aux (backend
, buf
, bufend
, offset
)
4415 const struct ecoff_debug_swap
*backend
;
4418 unsigned long offset
;
4421 union aux_ext
*aux_out
;
4423 vlinks_t
*file_link
;
4425 bigendian
= bfd_big_endian (stdoutput
);
4427 aux_out
= (union aux_ext
*) (*buf
+ offset
);
4431 /* The aux entries are stored by file. */
4432 for (file_link
= file_desc
.first
;
4433 file_link
!= (vlinks_t
*) NULL
;
4434 file_link
= file_link
->next
)
4440 if (file_link
->next
== (vlinks_t
*) NULL
)
4441 fil_cnt
= file_desc
.objects_last_page
;
4443 fil_cnt
= file_desc
.objects_per_page
;
4444 fil_ptr
= file_link
->datum
->file
;
4445 fil_end
= fil_ptr
+ fil_cnt
;
4446 for (; fil_ptr
< fil_end
; fil_ptr
++)
4450 fil_ptr
->fdr
.fBigendian
= bigendian
;
4451 fil_ptr
->fdr
.iauxBase
= iaux
;
4452 for (aux_link
= fil_ptr
->aux_syms
.first
;
4453 aux_link
!= (vlinks_t
*) NULL
;
4454 aux_link
= aux_link
->next
)
4460 if (aux_link
->next
== (vlinks_t
*) NULL
)
4461 aux_cnt
= fil_ptr
->aux_syms
.objects_last_page
;
4463 aux_cnt
= fil_ptr
->aux_syms
.objects_per_page
;
4464 aux_ptr
= aux_link
->datum
->aux
;
4465 aux_end
= aux_ptr
+ aux_cnt
;
4466 for (; aux_ptr
< aux_end
; aux_ptr
++)
4468 if (*bufend
- (char *) aux_out
< sizeof (union aux_ext
))
4469 aux_out
= ((union aux_ext
*)
4470 ecoff_add_bytes (buf
, bufend
,
4472 sizeof (union aux_ext
)));
4473 switch (aux_ptr
->type
)
4476 (*backend
->swap_tir_out
) (bigendian
,
4481 (*backend
->swap_rndx_out
) (bigendian
,
4482 &aux_ptr
->data
.rndx
,
4486 AUX_PUT_DNLOW (bigendian
, aux_ptr
->data
.dnLow
,
4490 AUX_PUT_DNHIGH (bigendian
, aux_ptr
->data
.dnHigh
,
4494 AUX_PUT_ISYM (bigendian
, aux_ptr
->data
.isym
,
4498 AUX_PUT_ISS (bigendian
, aux_ptr
->data
.iss
,
4502 AUX_PUT_WIDTH (bigendian
, aux_ptr
->data
.width
,
4506 AUX_PUT_COUNT (bigendian
, aux_ptr
->data
.count
,
4515 fil_ptr
->fdr
.caux
= iaux
- fil_ptr
->fdr
.iauxBase
;
4519 return ecoff_padding_adjust (backend
, buf
, bufend
,
4520 offset
+ iaux
* sizeof (union aux_ext
),
4524 /* Copy out the strings from a varray_t. This returns the number of
4525 bytes copied, rather than the new offset. */
4527 static unsigned long
4528 ecoff_build_strings (buf
, bufend
, offset
, vp
)
4531 unsigned long offset
;
4538 str_out
= *buf
+ offset
;
4542 for (str_link
= vp
->first
;
4543 str_link
!= (vlinks_t
*) NULL
;
4544 str_link
= str_link
->next
)
4546 unsigned long str_cnt
;
4548 if (str_link
->next
== (vlinks_t
*) NULL
)
4549 str_cnt
= vp
->objects_last_page
;
4551 str_cnt
= vp
->objects_per_page
;
4553 if (*bufend
- str_out
< str_cnt
)
4554 str_out
= ecoff_add_bytes (buf
, bufend
, str_out
, str_cnt
);
4556 memcpy (str_out
, str_link
->datum
->byte
, str_cnt
);
4564 /* Dump out the local strings. */
4566 static unsigned long
4567 ecoff_build_ss (backend
, buf
, bufend
, offset
)
4568 const struct ecoff_debug_swap
*backend
;
4571 unsigned long offset
;
4574 vlinks_t
*file_link
;
4578 for (file_link
= file_desc
.first
;
4579 file_link
!= (vlinks_t
*) NULL
;
4580 file_link
= file_link
->next
)
4586 if (file_link
->next
== (vlinks_t
*) NULL
)
4587 fil_cnt
= file_desc
.objects_last_page
;
4589 fil_cnt
= file_desc
.objects_per_page
;
4590 fil_ptr
= file_link
->datum
->file
;
4591 fil_end
= fil_ptr
+ fil_cnt
;
4592 for (; fil_ptr
< fil_end
; fil_ptr
++)
4596 fil_ptr
->fdr
.issBase
= iss
;
4597 ss_cnt
= ecoff_build_strings (buf
, bufend
, offset
+ iss
,
4599 fil_ptr
->fdr
.cbSs
= ss_cnt
;
4604 return ecoff_padding_adjust (backend
, buf
, bufend
, offset
+ iss
,
4608 /* Swap out the file descriptors. */
4610 static unsigned long
4611 ecoff_build_fdr (backend
, buf
, bufend
, offset
)
4612 const struct ecoff_debug_swap
*backend
;
4615 unsigned long offset
;
4617 const bfd_size_type external_fdr_size
= backend
->external_fdr_size
;
4618 void (* const swap_fdr_out
) PARAMS ((bfd
*, const FDR
*, PTR
))
4619 = backend
->swap_fdr_out
;
4622 vlinks_t
*file_link
;
4626 fdr_out
= *buf
+ offset
;
4628 for (file_link
= file_desc
.first
;
4629 file_link
!= (vlinks_t
*) NULL
;
4630 file_link
= file_link
->next
)
4636 if (file_link
->next
== (vlinks_t
*) NULL
)
4637 fil_cnt
= file_desc
.objects_last_page
;
4639 fil_cnt
= file_desc
.objects_per_page
;
4640 fil_ptr
= file_link
->datum
->file
;
4641 fil_end
= fil_ptr
+ fil_cnt
;
4642 for (; fil_ptr
< fil_end
; fil_ptr
++)
4644 if (*bufend
- fdr_out
< external_fdr_size
)
4645 fdr_out
= ecoff_add_bytes (buf
, bufend
, fdr_out
,
4647 (*swap_fdr_out
) (stdoutput
, &fil_ptr
->fdr
, fdr_out
);
4648 fdr_out
+= external_fdr_size
;
4653 return offset
+ ifile
* external_fdr_size
;
4656 /* Set up the external symbols. These are supposed to be handled by
4657 the backend. This routine just gets the right information and
4658 calls a backend function to deal with it. */
4663 register symbolS
*sym
;
4665 for (sym
= symbol_rootP
; sym
!= (symbolS
*) NULL
; sym
= symbol_next (sym
))
4667 if (symbol_get_obj (sym
)->ecoff_symbol
== NULL
)
4670 /* If this is a local symbol, then force the fields to zero. */
4671 if (! S_IS_EXTERNAL (sym
)
4672 && ! S_IS_WEAK (sym
)
4673 && S_IS_DEFINED (sym
))
4675 struct localsym
*lsym
;
4677 lsym
= symbol_get_obj (sym
)->ecoff_symbol
;
4678 lsym
->ecoff_sym
.asym
.value
= 0;
4679 lsym
->ecoff_sym
.asym
.st
= (int) st_Nil
;
4680 lsym
->ecoff_sym
.asym
.sc
= (int) sc_Nil
;
4681 lsym
->ecoff_sym
.asym
.index
= indexNil
;
4684 obj_ecoff_set_ext (sym
, &symbol_get_obj (sym
)->ecoff_symbol
->ecoff_sym
);
4688 /* Build the ECOFF debugging information. */
4691 ecoff_build_debug (hdr
, bufp
, backend
)
4694 const struct ecoff_debug_swap
*backend
;
4696 const bfd_size_type external_pdr_size
= backend
->external_pdr_size
;
4701 efdr_t
*hold_file_ptr
;
4702 proc_t
* hold_proc_ptr
;
4706 unsigned long offset
;
4708 /* Make sure we have a file. */
4709 if (first_file
== (efdr_t
*) NULL
)
4710 add_file ((const char *) NULL
, 0, 1);
4712 /* Handle any top level tags. */
4713 for (ptag
= top_tag_head
->first_tag
;
4714 ptag
!= (tag_t
*) NULL
;
4717 if (ptag
->forward_ref
!= (forward_t
*) NULL
)
4718 add_unknown_tag (ptag
);
4720 ptag_next
= ptag
->same_block
;
4721 ptag
->hash_ptr
->tag_ptr
= ptag
->same_name
;
4725 free_thead (top_tag_head
);
4727 /* Look through the symbols. Add debugging information for each
4728 symbol that has not already received it. */
4729 hold_file_ptr
= cur_file_ptr
;
4730 hold_proc_ptr
= cur_proc_ptr
;
4731 cur_proc_ptr
= (proc_t
*) NULL
;
4732 for (sym
= symbol_rootP
; sym
!= (symbolS
*) NULL
; sym
= symbol_next (sym
))
4734 if (symbol_get_obj (sym
)->ecoff_symbol
!= NULL
4735 || symbol_get_obj (sym
)->ecoff_file
== (efdr_t
*) NULL
4736 || (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0)
4739 cur_file_ptr
= symbol_get_obj (sym
)->ecoff_file
;
4740 add_ecoff_symbol ((const char *) NULL
, st_Nil
, sc_Nil
, sym
,
4741 (bfd_vma
) 0, S_GET_VALUE (sym
), indexNil
);
4743 cur_proc_ptr
= hold_proc_ptr
;
4744 cur_file_ptr
= hold_file_ptr
;
4746 /* Output an ending symbol for all the files. We have to do this
4747 here for the last file, so we may as well do it for all of the
4750 for (fil_ptr
= first_file
;
4751 fil_ptr
!= (efdr_t
*) NULL
;
4752 fil_ptr
= fil_ptr
->next_file
)
4754 cur_file_ptr
= fil_ptr
;
4755 while (cur_file_ptr
->cur_scope
!= (scope_t
*) NULL
4756 && cur_file_ptr
->cur_scope
->prev
!= (scope_t
*) NULL
)
4758 cur_file_ptr
->cur_scope
= cur_file_ptr
->cur_scope
->prev
;
4759 if (! end_warning
&& ! cur_file_ptr
->fake
)
4761 as_warn (_("Missing .end or .bend at end of file"));
4765 if (cur_file_ptr
->cur_scope
!= (scope_t
*) NULL
)
4766 (void) add_ecoff_symbol ((const char *) NULL
,
4774 /* Build the symbolic information. */
4776 buf
= xmalloc (PAGE_SIZE
);
4777 bufend
= buf
+ PAGE_SIZE
;
4779 /* Build the line number information. */
4780 hdr
->cbLineOffset
= offset
;
4781 offset
= ecoff_build_lineno (backend
, &buf
, &bufend
, offset
,
4783 hdr
->cbLine
= offset
- hdr
->cbLineOffset
;
4785 /* We don't use dense numbers at all. */
4787 hdr
->cbDnOffset
= 0;
4789 /* We can't build the PDR table until we have built the symbols,
4790 because a PDR contains a symbol index. However, we set aside
4791 space at this point. */
4792 hdr
->ipdMax
= proc_cnt
;
4793 hdr
->cbPdOffset
= offset
;
4794 if (bufend
- (buf
+ offset
) < proc_cnt
* external_pdr_size
)
4795 (void) ecoff_add_bytes (&buf
, &bufend
, buf
+ offset
,
4796 proc_cnt
* external_pdr_size
);
4797 offset
+= proc_cnt
* external_pdr_size
;
4799 /* Build the local symbols. */
4800 hdr
->cbSymOffset
= offset
;
4801 offset
= ecoff_build_symbols (backend
, &buf
, &bufend
, offset
);
4802 hdr
->isymMax
= (offset
- hdr
->cbSymOffset
) / backend
->external_sym_size
;
4804 /* Building the symbols initializes the symbol index in the PDR's.
4805 Now we can swap out the PDR's. */
4806 (void) ecoff_build_procs (backend
, &buf
, &bufend
, hdr
->cbPdOffset
);
4808 /* We don't use optimization symbols. */
4810 hdr
->cbOptOffset
= 0;
4812 /* Swap out the auxiliary type information. */
4813 hdr
->cbAuxOffset
= offset
;
4814 offset
= ecoff_build_aux (backend
, &buf
, &bufend
, offset
);
4815 hdr
->iauxMax
= (offset
- hdr
->cbAuxOffset
) / sizeof (union aux_ext
);
4817 /* Copy out the local strings. */
4818 hdr
->cbSsOffset
= offset
;
4819 offset
= ecoff_build_ss (backend
, &buf
, &bufend
, offset
);
4820 hdr
->issMax
= offset
- hdr
->cbSsOffset
;
4822 /* We don't use relative file descriptors. */
4824 hdr
->cbRfdOffset
= 0;
4826 /* Swap out the file descriptors. */
4827 hdr
->cbFdOffset
= offset
;
4828 offset
= ecoff_build_fdr (backend
, &buf
, &bufend
, offset
);
4829 hdr
->ifdMax
= (offset
- hdr
->cbFdOffset
) / backend
->external_fdr_size
;
4831 /* Set up the external symbols, which are handled by the BFD back
4834 hdr
->cbSsExtOffset
= 0;
4836 hdr
->cbExtOffset
= 0;
4839 know ((offset
& (backend
->debug_align
- 1)) == 0);
4841 /* FIXME: This value should be determined from the .verstamp directive,
4842 with reasonable defaults in config files. */
4844 hdr
->vstamp
= 0x030b;
4846 hdr
->vstamp
= 0x020b;
4853 /* Allocate a cluster of pages. */
4855 #ifndef MALLOC_CHECK
4858 allocate_cluster (npages
)
4859 unsigned long npages
;
4861 register page_type
*value
= (page_type
*) xmalloc (npages
* PAGE_USIZE
);
4865 fprintf (stderr
, "\talloc\tnpages = %d, value = 0x%.8x\n", npages
, value
);
4868 memset (value
, 0, npages
* PAGE_USIZE
);
4874 static page_type
*cluster_ptr
= NULL
;
4875 static unsigned long pages_left
= 0;
4877 #endif /* MALLOC_CHECK */
4879 /* Allocate one page (which is initialized to 0). */
4884 #ifndef MALLOC_CHECK
4886 if (pages_left
== 0)
4888 pages_left
= MAX_CLUSTER_PAGES
;
4889 cluster_ptr
= allocate_cluster (pages_left
);
4893 return cluster_ptr
++;
4895 #else /* MALLOC_CHECK */
4899 ptr
= xmalloc (PAGE_USIZE
);
4900 memset (ptr
, 0, PAGE_USIZE
);
4903 #endif /* MALLOC_CHECK */
4906 /* Allocate scoping information. */
4911 register scope_t
*ptr
;
4912 static scope_t initial_scope
;
4914 #ifndef MALLOC_CHECK
4916 ptr
= alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
;
4917 if (ptr
!= (scope_t
*) NULL
)
4918 alloc_counts
[ (int)alloc_type_scope
].free_list
.f_scope
= ptr
->free
;
4921 register int unallocated
= alloc_counts
[(int)alloc_type_scope
].unallocated
;
4922 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_scope
].cur_page
;
4924 if (unallocated
== 0)
4926 unallocated
= PAGE_SIZE
/ sizeof (scope_t
);
4927 alloc_counts
[(int)alloc_type_scope
].cur_page
= cur_page
= allocate_page ();
4928 alloc_counts
[(int)alloc_type_scope
].total_pages
++;
4931 ptr
= &cur_page
->scope
[--unallocated
];
4932 alloc_counts
[(int)alloc_type_scope
].unallocated
= unallocated
;
4937 ptr
= (scope_t
*) xmalloc (sizeof (scope_t
));
4941 alloc_counts
[(int)alloc_type_scope
].total_alloc
++;
4942 *ptr
= initial_scope
;
4946 /* Free scoping information. */
4952 alloc_counts
[(int)alloc_type_scope
].total_free
++;
4954 #ifndef MALLOC_CHECK
4955 ptr
->free
= alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
;
4956 alloc_counts
[(int)alloc_type_scope
].free_list
.f_scope
= ptr
;
4962 /* Allocate links for pages in a virtual array. */
4967 register vlinks_t
*ptr
;
4968 static vlinks_t initial_vlinks
;
4970 #ifndef MALLOC_CHECK
4972 register int unallocated
= alloc_counts
[(int)alloc_type_vlinks
].unallocated
;
4973 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_vlinks
].cur_page
;
4975 if (unallocated
== 0)
4977 unallocated
= PAGE_SIZE
/ sizeof (vlinks_t
);
4978 alloc_counts
[(int)alloc_type_vlinks
].cur_page
= cur_page
= allocate_page ();
4979 alloc_counts
[(int)alloc_type_vlinks
].total_pages
++;
4982 ptr
= &cur_page
->vlinks
[--unallocated
];
4983 alloc_counts
[(int)alloc_type_vlinks
].unallocated
= unallocated
;
4987 ptr
= (vlinks_t
*) xmalloc (sizeof (vlinks_t
));
4991 alloc_counts
[(int)alloc_type_vlinks
].total_alloc
++;
4992 *ptr
= initial_vlinks
;
4996 /* Allocate string hash buckets. */
5001 register shash_t
*ptr
;
5002 static shash_t initial_shash
;
5004 #ifndef MALLOC_CHECK
5006 register int unallocated
= alloc_counts
[(int)alloc_type_shash
].unallocated
;
5007 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_shash
].cur_page
;
5009 if (unallocated
== 0)
5011 unallocated
= PAGE_SIZE
/ sizeof (shash_t
);
5012 alloc_counts
[(int)alloc_type_shash
].cur_page
= cur_page
= allocate_page ();
5013 alloc_counts
[(int)alloc_type_shash
].total_pages
++;
5016 ptr
= &cur_page
->shash
[--unallocated
];
5017 alloc_counts
[(int)alloc_type_shash
].unallocated
= unallocated
;
5021 ptr
= (shash_t
*) xmalloc (sizeof (shash_t
));
5025 alloc_counts
[(int)alloc_type_shash
].total_alloc
++;
5026 *ptr
= initial_shash
;
5030 /* Allocate type hash buckets. */
5035 register thash_t
*ptr
;
5036 static thash_t initial_thash
;
5038 #ifndef MALLOC_CHECK
5040 register int unallocated
= alloc_counts
[(int)alloc_type_thash
].unallocated
;
5041 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_thash
].cur_page
;
5043 if (unallocated
== 0)
5045 unallocated
= PAGE_SIZE
/ sizeof (thash_t
);
5046 alloc_counts
[(int)alloc_type_thash
].cur_page
= cur_page
= allocate_page ();
5047 alloc_counts
[(int)alloc_type_thash
].total_pages
++;
5050 ptr
= &cur_page
->thash
[--unallocated
];
5051 alloc_counts
[(int)alloc_type_thash
].unallocated
= unallocated
;
5055 ptr
= (thash_t
*) xmalloc (sizeof (thash_t
));
5059 alloc_counts
[(int)alloc_type_thash
].total_alloc
++;
5060 *ptr
= initial_thash
;
5064 /* Allocate structure, union, or enum tag information. */
5069 register tag_t
*ptr
;
5070 static tag_t initial_tag
;
5072 #ifndef MALLOC_CHECK
5074 ptr
= alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
;
5075 if (ptr
!= (tag_t
*) NULL
)
5076 alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
= ptr
->free
;
5079 register int unallocated
= alloc_counts
[(int)alloc_type_tag
].unallocated
;
5080 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_tag
].cur_page
;
5082 if (unallocated
== 0)
5084 unallocated
= PAGE_SIZE
/ sizeof (tag_t
);
5085 alloc_counts
[(int)alloc_type_tag
].cur_page
= cur_page
= allocate_page ();
5086 alloc_counts
[(int)alloc_type_tag
].total_pages
++;
5089 ptr
= &cur_page
->tag
[--unallocated
];
5090 alloc_counts
[(int)alloc_type_tag
].unallocated
= unallocated
;
5095 ptr
= (tag_t
*) xmalloc (sizeof (tag_t
));
5099 alloc_counts
[(int)alloc_type_tag
].total_alloc
++;
5104 /* Free scoping information. */
5110 alloc_counts
[(int)alloc_type_tag
].total_free
++;
5112 #ifndef MALLOC_CHECK
5113 ptr
->free
= alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
;
5114 alloc_counts
[(int)alloc_type_tag
].free_list
.f_tag
= ptr
;
5120 /* Allocate forward reference to a yet unknown tag. */
5125 register forward_t
*ptr
;
5126 static forward_t initial_forward
;
5128 #ifndef MALLOC_CHECK
5130 register int unallocated
= alloc_counts
[(int)alloc_type_forward
].unallocated
;
5131 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_forward
].cur_page
;
5133 if (unallocated
== 0)
5135 unallocated
= PAGE_SIZE
/ sizeof (forward_t
);
5136 alloc_counts
[(int)alloc_type_forward
].cur_page
= cur_page
= allocate_page ();
5137 alloc_counts
[(int)alloc_type_forward
].total_pages
++;
5140 ptr
= &cur_page
->forward
[--unallocated
];
5141 alloc_counts
[(int)alloc_type_forward
].unallocated
= unallocated
;
5145 ptr
= (forward_t
*) xmalloc (sizeof (forward_t
));
5149 alloc_counts
[(int)alloc_type_forward
].total_alloc
++;
5150 *ptr
= initial_forward
;
5154 /* Allocate head of type hash list. */
5159 register thead_t
*ptr
;
5160 static thead_t initial_thead
;
5162 #ifndef MALLOC_CHECK
5164 ptr
= alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
;
5165 if (ptr
!= (thead_t
*) NULL
)
5166 alloc_counts
[ (int)alloc_type_thead
].free_list
.f_thead
= ptr
->free
;
5169 register int unallocated
= alloc_counts
[(int)alloc_type_thead
].unallocated
;
5170 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_thead
].cur_page
;
5172 if (unallocated
== 0)
5174 unallocated
= PAGE_SIZE
/ sizeof (thead_t
);
5175 alloc_counts
[(int)alloc_type_thead
].cur_page
= cur_page
= allocate_page ();
5176 alloc_counts
[(int)alloc_type_thead
].total_pages
++;
5179 ptr
= &cur_page
->thead
[--unallocated
];
5180 alloc_counts
[(int)alloc_type_thead
].unallocated
= unallocated
;
5185 ptr
= (thead_t
*) xmalloc (sizeof (thead_t
));
5189 alloc_counts
[(int)alloc_type_thead
].total_alloc
++;
5190 *ptr
= initial_thead
;
5194 /* Free scoping information. */
5200 alloc_counts
[(int)alloc_type_thead
].total_free
++;
5202 #ifndef MALLOC_CHECK
5203 ptr
->free
= (thead_t
*) alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
;
5204 alloc_counts
[(int)alloc_type_thead
].free_list
.f_thead
= ptr
;
5210 static lineno_list_t
*
5211 allocate_lineno_list ()
5213 register lineno_list_t
*ptr
;
5214 static lineno_list_t initial_lineno_list
;
5216 #ifndef MALLOC_CHECK
5218 register int unallocated
= alloc_counts
[(int)alloc_type_lineno
].unallocated
;
5219 register page_type
*cur_page
= alloc_counts
[(int)alloc_type_lineno
].cur_page
;
5221 if (unallocated
== 0)
5223 unallocated
= PAGE_SIZE
/ sizeof (lineno_list_t
);
5224 alloc_counts
[(int)alloc_type_lineno
].cur_page
= cur_page
= allocate_page ();
5225 alloc_counts
[(int)alloc_type_lineno
].total_pages
++;
5228 ptr
= &cur_page
->lineno
[--unallocated
];
5229 alloc_counts
[(int)alloc_type_lineno
].unallocated
= unallocated
;
5233 ptr
= (lineno_list_t
*) xmalloc (sizeof (lineno_list_t
));
5237 alloc_counts
[(int)alloc_type_lineno
].total_alloc
++;
5238 *ptr
= initial_lineno_list
;
5243 ecoff_set_gp_prolog_size (sz
)
5246 if (cur_proc_ptr
== 0)
5249 cur_proc_ptr
->pdr
.gp_prologue
= sz
;
5250 if (cur_proc_ptr
->pdr
.gp_prologue
!= sz
)
5252 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5253 cur_proc_ptr
->pdr
.gp_prologue
= 0;
5256 cur_proc_ptr
->pdr
.gp_used
= 1;
5260 ecoff_no_current_file ()
5262 return cur_file_ptr
== (efdr_t
*) NULL
;
5266 ecoff_generate_asm_lineno ()
5268 unsigned int lineno
;
5270 lineno_list_t
*list
;
5272 as_where (&filename
, &lineno
);
5274 if (current_stabs_filename
== (char *)NULL
5275 || strcmp (current_stabs_filename
, filename
))
5276 add_file (filename
, 0, 1);
5278 list
= allocate_lineno_list ();
5280 list
->next
= (lineno_list_t
*) NULL
;
5281 list
->file
= cur_file_ptr
;
5282 list
->proc
= cur_proc_ptr
;
5283 list
->frag
= frag_now
;
5284 list
->paddr
= frag_now_fix ();
5285 list
->lineno
= lineno
;
5287 /* We don't want to merge files which have line numbers. */
5288 cur_file_ptr
->fdr
.fMerge
= 0;
5290 /* A .loc directive will sometimes appear before a .ent directive,
5291 which means that cur_proc_ptr will be NULL here. Arrange to
5293 if (cur_proc_ptr
== (proc_t
*) NULL
)
5297 pl
= &noproc_lineno
;
5298 while (*pl
!= (lineno_list_t
*) NULL
)
5305 *last_lineno_ptr
= list
;
5306 last_lineno_ptr
= &list
->next
;
5313 ecoff_generate_asm_lineno ()
5317 #endif /* ECOFF_DEBUGGING */