1 /* ECOFF debugging support.
2 Copyright (C) 1993-2017 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
27 /* This file is compiled conditionally for those targets which use
28 ECOFF debugging information (e.g., MIPS ELF, Alpha ECOFF). */
32 #ifdef ECOFF_DEBUGGING
34 #include "coff/internal.h"
35 #include "coff/symconst.h"
36 #include "aout/stab_gnu.h"
37 #include "filenames.h"
38 #include "safe-ctype.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
163 The dense number table is used in the front ends, and disappears by
164 the time the .o is created.
166 With the 1.31 compiler suite, the optimization symbols don't seem
167 to be used as far as I can tell.
169 The linker is the first entity that creates the relative file
170 descriptor table, and I believe it is used so that the individual
171 file table pointers don't have to be rewritten when the objects are
172 merged together into the program file.
174 Unlike COFF, the basic symbol & string tables are split into
175 external and local symbols/strings. The relocation information
176 only goes off of the external symbol table, and the debug
177 information only goes off of the internal symbol table. The
178 external symbols can have links to an appropriate file index and
179 symbol within the file to give it the appropriate type information.
180 Because of this, the external symbols are actually larger than the
181 internal symbols (to contain the link information), and contain the
182 local symbol structure as a member, though this member is not the
183 first member of the external symbol structure (!). I suspect this
184 split is to make strip easier to deal with.
186 Each file table has offsets for where the line numbers, local
187 strings, local symbols, and procedure table starts from within the
188 global tables, and the indices are reset to 0 for each of those
191 The procedure table contains the binary equivalents of the .ent
192 (start of the function address), .frame (what register is the
193 virtual frame pointer, constant offset from the register to obtain
194 the VFP, and what register holds the return address), .mask/.fmask
195 (bitmask of saved registers, and where the first register is stored
196 relative to the VFP) assembler directives. It also contains the
197 low and high bounds of the line numbers if debugging is turned on.
199 The line number table is a compressed form of the normal COFF line
200 table. Each line number entry is either 1 or 3 bytes long, and
201 contains a signed delta from the previous line, and an unsigned
202 count of the number of instructions this statement takes.
204 The local symbol table contains the following fields:
206 1) iss: index to the local string table giving the name of the
209 2) value: value of the symbol (address, register number, etc.).
211 3) st: symbol type. The current symbol types are:
213 stNil -- Nuthin' special
214 stGlobal -- external symbol
216 stParam -- procedure argument
217 stLocal -- local variable
219 stProc -- External Procedure
220 stBlock -- beginning of block
221 stEnd -- end (of anything)
222 stMember -- member (of anything)
223 stTypedef -- type definition
225 stRegReloc -- register relocation
226 stForward -- forwarding address
227 stStaticProc -- Static procedure
230 4) sc: storage class. The current storage classes are:
232 scText -- text symbol
233 scData -- initialized data symbol
234 scBss -- un-initialized data symbol
235 scRegister -- value of symbol is register number
236 scAbs -- value of symbol is absolute
237 scUndefined -- who knows?
238 scCdbLocal -- variable's value is IN se->va.??
239 scBits -- this is a bit field
240 scCdbSystem -- value is IN debugger's address space
241 scRegImage -- register value saved on stack
242 scInfo -- symbol contains debugger information
243 scUserStruct -- addr in struct user for current process
244 scSData -- load time only small data
245 scSBss -- load time only small common
246 scRData -- load time only read only data
247 scVar -- Var parameter (fortranpascal)
248 scCommon -- common variable
249 scSCommon -- small common
250 scVarRegister -- Var parameter in a register
251 scVariant -- Variant record
252 scSUndefined -- small undefined(external) data
253 scInit -- .init section symbol
255 5) index: pointer to a local symbol or aux. entry.
257 For the following program:
262 printf("Hello World!\n");
266 Mips-tdump produces the following information:
271 timestamp 645311799, Wed Jun 13 17:16:39 1990
272 symbolic header offset 284
273 symbolic header size 96
277 Symbolic header, magic number = 0x7009, vstamp = 1.31:
279 Info Offset Number Bytes
280 ==== ====== ====== =====
282 Line numbers 380 4 4 [13]
284 Procedures Tables 384 1 52
285 Local Symbols 436 16 192
286 Optimization Symbols 0 0 0
287 Auxiliary Symbols 628 39 156
288 Local Strings 784 80 80
289 External Strings 864 144 144
290 File Tables 1008 2 144
292 External Symbols 1152 20 320
296 Name index = 1 Readin = No
297 Merge = No Endian = LITTLE
298 Debug level = G2 Language = C
301 Info Start Number Size Offset
302 ==== ===== ====== ==== ======
303 Local strings 0 15 15 784
304 Local symbols 0 6 72 436
305 Line numbers 0 13 13 380
306 Optimization symbols 0 0 0 0
307 Procedures 0 1 52 384
308 Auxiliary symbols 0 14 56 628
309 Relative Files 0 0 0 0
311 There are 6 local symbols, starting at 436
313 Symbol# 0: "hello2.c"
316 Storage class = Text Index = 6
317 Symbol type = File Value = 0
323 Storage class = Text Index = 12
324 Symbol type = Proc Value = 0
329 Storage class = Text Index = 4
330 Symbol type = Block Value = 8
335 Storage class = Text Index = 2
336 Symbol type = End Value = 28
341 Storage class = Text Index = 1
342 Symbol type = End Value = 52
344 Symbol# 5: "hello2.c"
347 Storage class = Text Index = 0
348 Symbol type = End Value = 0
350 There are 14 auxiliary table entries, starting at 628.
352 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
353 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
354 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
355 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
356 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
357 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
358 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
359 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
360 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
361 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
362 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
363 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
364 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
365 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
367 There are 1 procedure descriptor entries, starting at 0.
369 Procedure descriptor 0:
370 Name index = 10 Name = "main"
371 .mask 0x80000000,-4 .fmask 0x00000000,0
373 Opt. start = -1 Symbols start = 1
374 First line # = 3 Last line # = 6
375 Line Offset = 0 Address = 0x00000000
377 There are 4 bytes holding line numbers, starting at 380.
378 Line 3, delta 0, count 2
379 Line 4, delta 1, count 3
380 Line 5, delta 1, count 2
381 Line 6, delta 1, count 6
383 File #1, "/usr/include/stdio.h"
385 Name index = 1 Readin = No
386 Merge = Yes Endian = LITTLE
387 Debug level = G2 Language = C
390 Info Start Number Size Offset
391 ==== ===== ====== ==== ======
392 Local strings 15 65 65 799
393 Local symbols 6 10 120 508
394 Line numbers 0 0 0 380
395 Optimization symbols 0 0 0 0
397 Auxiliary symbols 14 25 100 684
398 Relative Files 0 0 0 0
400 There are 10 local symbols, starting at 442
402 Symbol# 0: "/usr/include/stdio.h"
405 Storage class = Text Index = 10
406 Symbol type = File Value = 0
411 Storage class = Info Index = 9
412 Symbol type = Block Value = 20
417 Storage class = Info Index = 4
418 Symbol type = Member Value = 0
423 Storage class = Info Index = 15
424 Symbol type = Member Value = 32
429 Storage class = Info Index = 16
430 Symbol type = Member Value = 64
435 Storage class = Info Index = 4
436 Symbol type = Member Value = 96
441 Storage class = Info Index = 3
442 Symbol type = Member Value = 128
447 Storage class = Info Index = 2
448 Symbol type = Member Value = 144
453 Storage class = Info Index = 1
454 Symbol type = End Value = 0
456 Symbol# 9: "/usr/include/stdio.h"
459 Storage class = Text Index = 0
460 Symbol type = End Value = 0
462 There are 25 auxiliary table entries, starting at 642.
464 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
465 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
466 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
467 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
468 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
469 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
470 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
471 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
472 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
473 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
474 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
475 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
476 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
477 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
478 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 There are 0 procedure descriptor entries, starting at 1.
492 There are 20 external symbols, starting at 1152
495 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
496 String index = 0 Ifd = 1
497 Storage class = Nil Index = 17
498 Symbol type = Global Value = 60
501 String index = 5 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
506 String index = 11 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
511 String index = 18 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
516 String index = 26 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
521 String index = 32 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
526 String index = 40 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
531 String index = 46 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
536 String index = 53 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
540 Symbol# 9: "setbuffer"
541 String index = 60 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
545 Symbol# 10: "setlinebuf"
546 String index = 70 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
551 String index = 81 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
556 String index = 87 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
560 Symbol# 13: "ctermid"
561 String index = 92 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
565 Symbol# 14: "cuserid"
566 String index = 100 Ifd = 1
567 Storage class = Nil Index = 1048575
568 Symbol type = Proc Value = 0
570 Symbol# 15: "tempnam"
571 String index = 108 Ifd = 1
572 Storage class = Nil Index = 1048575
573 Symbol type = Proc Value = 0
576 String index = 116 Ifd = 1
577 Storage class = Nil Index = 1048575
578 Symbol type = Proc Value = 0
580 Symbol# 17: "sprintf"
581 String index = 123 Ifd = 1
582 Storage class = Nil Index = 1048575
583 Symbol type = Proc Value = 0
587 String index = 131 Ifd = 0
588 Storage class = Text Index = 1
589 Symbol type = Proc Value = 0
592 String index = 136 Ifd = 0
593 Storage class = Undefined Index = 1048575
594 Symbol type = Proc Value = 0
596 The following auxiliary table entries were unused:
600 #3 16 0x00000010 short
602 #5 32 0x00000020 long
603 #6 40 0x00000028 float
604 #7 44 0x0000002c double
605 #8 12 0x0000000c unsigned char
606 #9 20 0x00000014 unsigned short
607 #10 28 0x0000001c unsigned int
608 #11 36 0x00000024 unsigned long
609 #14 0 0x00000000 void
610 #15 24 0x00000018 int
611 #19 32 0x00000020 long
612 #20 40 0x00000028 float
613 #21 44 0x0000002c double
614 #22 12 0x0000000c unsigned char
615 #23 20 0x00000014 unsigned short
616 #24 28 0x0000001c unsigned int
617 #25 36 0x00000024 unsigned long
618 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
621 /* Redefinition of of storage classes as an enumeration for better
625 sc_Nil = scNil, /* no storage class */
626 sc_Text = scText, /* text symbol */
627 sc_Data = scData, /* initialized data symbol */
628 sc_Bss = scBss, /* un-initialized data symbol */
629 sc_Register = scRegister, /* value of symbol is register number */
630 sc_Abs = scAbs, /* value of symbol is absolute */
631 sc_Undefined = scUndefined, /* who knows? */
632 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
633 sc_Bits = scBits, /* this is a bit field */
634 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
635 sc_RegImage = scRegImage, /* register value saved on stack */
636 sc_Info = scInfo, /* symbol contains debugger information */
637 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
638 sc_SData = scSData, /* load time only small data */
639 sc_SBss = scSBss, /* load time only small common */
640 sc_RData = scRData, /* load time only read only data */
641 sc_Var = scVar, /* Var parameter (fortran,pascal) */
642 sc_Common = scCommon, /* common variable */
643 sc_SCommon = scSCommon, /* small common */
644 sc_VarRegister = scVarRegister, /* Var parameter in a register */
645 sc_Variant = scVariant, /* Variant record */
646 sc_SUndefined = scSUndefined, /* small undefined(external) data */
647 sc_Init = scInit, /* .init section symbol */
648 sc_Max = scMax /* Max storage class+1 */
651 /* Redefinition of symbol type. */
654 st_Nil = stNil, /* Nuthin' special */
655 st_Global = stGlobal, /* external symbol */
656 st_Static = stStatic, /* static */
657 st_Param = stParam, /* procedure argument */
658 st_Local = stLocal, /* local variable */
659 st_Label = stLabel, /* label */
660 st_Proc = stProc, /* " " Procedure */
661 st_Block = stBlock, /* beginning of block */
662 st_End = stEnd, /* end (of anything) */
663 st_Member = stMember, /* member (of anything - struct/union/enum */
664 st_Typedef = stTypedef, /* type definition */
665 st_File = stFile, /* file name */
666 st_RegReloc = stRegReloc, /* register relocation */
667 st_Forward = stForward, /* forwarding address */
668 st_StaticProc = stStaticProc, /* load time only static procs */
669 st_Constant = stConstant, /* const */
670 st_Str = stStr, /* string */
671 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
672 st_Expr = stExpr, /* 2+2 vs. 4 */
673 st_Type = stType, /* post-coercion SER */
674 st_Max = stMax /* max type+1 */
677 /* Redefinition of type qualifiers. */
680 tq_Nil = tqNil, /* bt is what you see */
681 tq_Ptr = tqPtr, /* pointer */
682 tq_Proc = tqProc, /* procedure */
683 tq_Array = tqArray, /* duh */
684 tq_Far = tqFar, /* longer addressing - 8086/8 land */
685 tq_Vol = tqVol, /* volatile */
686 tq_Max = tqMax /* Max type qualifier+1 */
689 /* Redefinition of basic types. */
692 bt_Nil = btNil, /* undefined */
693 bt_Adr = btAdr, /* address - integer same size as pointer */
694 bt_Char = btChar, /* character */
695 bt_UChar = btUChar, /* unsigned character */
696 bt_Short = btShort, /* short */
697 bt_UShort = btUShort, /* unsigned short */
698 bt_Int = btInt, /* int */
699 bt_UInt = btUInt, /* unsigned int */
700 bt_Long = btLong, /* long */
701 bt_ULong = btULong, /* unsigned long */
702 bt_Float = btFloat, /* float (real) */
703 bt_Double = btDouble, /* Double (real) */
704 bt_Struct = btStruct, /* Structure (Record) */
705 bt_Union = btUnion, /* Union (variant) */
706 bt_Enum = btEnum, /* Enumerated */
707 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
708 bt_Range = btRange, /* subrange of int */
709 bt_Set = btSet, /* pascal sets */
710 bt_Complex = btComplex, /* fortran complex */
711 bt_DComplex = btDComplex, /* fortran double complex */
712 bt_Indirect = btIndirect, /* forward or unnamed typedef */
713 bt_FixedDec = btFixedDec, /* Fixed Decimal */
714 bt_FloatDec = btFloatDec, /* Float Decimal */
715 bt_String = btString, /* Varying Length Character String */
716 bt_Bit = btBit, /* Aligned Bit String */
717 bt_Picture = btPicture, /* Picture */
718 bt_Void = btVoid, /* Void */
719 bt_Max = btMax /* Max basic type+1 */
724 /* States for whether to hash type or not. */
725 typedef enum hash_state {
726 hash_no = 0, /* Don't hash type */
727 hash_yes = 1, /* OK to hash type, or use previous hash */
728 hash_record = 2 /* OK to record hash, but don't use prev. */
731 /* Types of different sized allocation requests. */
733 alloc_type_none, /* dummy value */
734 alloc_type_scope, /* nested scopes linked list */
735 alloc_type_vlinks, /* glue linking pages in varray */
736 alloc_type_shash, /* string hash element */
737 alloc_type_thash, /* type hash element */
738 alloc_type_tag, /* struct/union/tag element */
739 alloc_type_forward, /* element to hold unknown tag */
740 alloc_type_thead, /* head of type hash list */
741 alloc_type_varray, /* general varray allocation */
742 alloc_type_lineno, /* line number list */
743 alloc_type_last /* last+1 element for array bounds */
746 /* Types of auxiliary type information. */
748 aux_tir, /* TIR type information */
749 aux_rndx, /* relative index into symbol table */
750 aux_dnLow, /* low dimension */
751 aux_dnHigh, /* high dimension */
752 aux_isym, /* symbol table index (end of proc) */
753 aux_iss, /* index into string space (not used) */
754 aux_width, /* width for non-default sized struc fields */
755 aux_count /* count of ranges for variant arm */
758 /* Structures to provide n-number of virtual arrays, each of which can
759 grow linearly, and which are written in the object file as
760 sequential pages. On systems with a BSD malloc, the
761 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
762 malloc adds it's overhead, and rounds up to the next power of 2.
763 Pages are linked together via a linked list.
765 If PAGE_SIZE is > 4096, the string length in the shash_t structure
766 can't be represented (assuming there are strings > 4096 bytes). */
768 /* FIXME: Yes, there can be such strings while emitting C++ class debug
769 info. Templates are the offender here, the test case in question
770 having a mangled class name of
772 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
773 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
775 Repeat that a couple dozen times while listing the class members and
776 you've got strings over 4k. Hack around this for now by increasing
777 the page size. A proper solution would abandon this structure scheme
778 certainly for very large strings, and possibly entirely. */
781 #define PAGE_SIZE (8*1024) /* size of varray pages */
784 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
786 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
787 #define MAX_CLUSTER_PAGES 63
790 /* Linked list connecting separate page allocations. */
791 typedef struct vlinks {
792 struct vlinks *prev; /* previous set of pages */
793 struct vlinks *next; /* next set of pages */
794 union page *datum; /* start of page */
795 unsigned long start_index; /* starting index # of page */
798 /* Virtual array header. */
799 typedef struct varray {
800 vlinks_t *first; /* first page link */
801 vlinks_t *last; /* last page link */
802 unsigned long num_allocated; /* # objects allocated */
803 unsigned short object_size; /* size in bytes of each object */
804 unsigned short objects_per_page; /* # objects that can fit on a page */
805 unsigned short objects_last_page; /* # objects allocated on last page */
809 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
811 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
814 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
815 (vlinks_t *)0, /* first */ \
816 (vlinks_t *)0, /* last */ \
817 0, /* num_allocated */ \
818 sizeof (type), /* object_size */ \
819 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
820 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
823 /* Master type for indexes within the symbol table. */
824 typedef unsigned long symint_t;
826 /* Linked list support for nested scopes (file, block, structure, etc.). */
827 typedef struct scope {
828 struct scope *prev; /* previous scope level */
829 struct scope *free; /* free list pointer */
830 struct localsym *lsym; /* pointer to local symbol node */
831 st_t type; /* type of the node */
834 /* For a local symbol we store a gas symbol as well as the debugging
835 information we generate. The gas symbol will be NULL if this is
836 only a debugging symbol. */
837 typedef struct localsym {
838 const char *name; /* symbol name */
839 symbolS *as_sym; /* symbol as seen by gas */
840 bfd_vma addend; /* addend to as_sym value */
841 struct efdr *file_ptr; /* file pointer */
842 struct ecoff_proc *proc_ptr; /* proc pointer */
843 struct localsym *begin_ptr; /* symbol at start of block */
844 struct ecoff_aux *index_ptr; /* index value to be filled in */
845 struct forward *forward_ref; /* forward references to this symbol */
846 long sym_index; /* final symbol index */
847 EXTR ecoff_sym; /* ECOFF debugging symbol */
850 /* For aux information we keep the type and the data. */
851 typedef struct ecoff_aux {
852 enum aux_type type; /* aux type */
853 AUXU data; /* aux data */
856 /* For a procedure we store the gas symbol as well as the PDR
857 debugging information. */
858 typedef struct ecoff_proc {
859 localsym_t *sym; /* associated symbol */
860 PDR pdr; /* ECOFF debugging info */
863 /* Number of proc_t structures allocated. */
864 static unsigned long proc_cnt;
866 /* Forward reference list for tags referenced, but not yet defined. */
867 typedef struct forward {
868 struct forward *next; /* next forward reference */
869 struct forward *free; /* free list pointer */
870 aux_t *ifd_ptr; /* pointer to store file index */
871 aux_t *index_ptr; /* pointer to store symbol index */
874 /* Linked list support for tags. The first tag in the list is always
875 the current tag for that block. */
877 struct tag *free; /* free list pointer */
878 struct shash *hash_ptr; /* pointer to the hash table head */
879 struct tag *same_name; /* tag with same name in outer scope */
880 struct tag *same_block; /* next tag defined in the same block. */
881 struct forward *forward_ref; /* list of forward references */
882 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
883 symint_t ifd; /* file # tag defined in */
884 localsym_t *sym; /* file's local symbols */
887 /* Head of a block's linked list of tags. */
888 typedef struct thead {
889 struct thead *prev; /* previous block */
890 struct thead *free; /* free list pointer */
891 struct tag *first_tag; /* first tag in block defined */
894 /* Union containing pointers to each the small structures which are freed up. */
895 typedef union small_free {
896 scope_t *f_scope; /* scope structure */
897 thead_t *f_thead; /* tag head structure */
898 tag_t *f_tag; /* tag element structure */
899 forward_t *f_forward; /* forward tag reference */
902 /* String hash table entry. */
904 typedef struct shash {
905 char *string; /* string we are hashing */
906 symint_t indx; /* index within string table */
907 EXTR *esym_ptr; /* global symbol pointer */
908 localsym_t *sym_ptr; /* local symbol pointer */
909 localsym_t *end_ptr; /* symbol pointer to end block */
910 tag_t *tag_ptr; /* tag pointer */
911 proc_t *proc_ptr; /* procedure descriptor pointer */
914 /* Type hash table support. The size of the hash table must fit
915 within a page with the other extended file descriptor information.
916 Because unique types which are hashed are fewer in number than
917 strings, we use a smaller hash value. */
922 #define THASH_SIZE 113
925 typedef struct thash {
926 struct thash *next; /* next hash value */
927 AUXU type; /* type we are hashing */
928 symint_t indx; /* index within string table */
931 /* Extended file descriptor that contains all of the support necessary
932 to add things to each file separately. */
933 typedef struct efdr {
934 FDR fdr; /* File header to be written out */
935 FDR *orig_fdr; /* original file header */
936 char *name; /* filename */
937 int fake; /* whether this is faked .file */
938 symint_t void_type; /* aux. pointer to 'void' type */
939 symint_t int_type; /* aux. pointer to 'int' type */
940 scope_t *cur_scope; /* current nested scopes */
941 symint_t file_index; /* current file number */
942 int nested_scopes; /* # nested scopes */
943 varray_t strings; /* local strings */
944 varray_t symbols; /* local symbols */
945 varray_t procs; /* procedures */
946 varray_t aux_syms; /* auxiliary symbols */
947 struct efdr *next_file; /* next file descriptor */
948 /* string/type hash tables */
949 struct hash_control *str_hash; /* string hash table */
950 thash_t *thash_head[THASH_SIZE];
953 /* Pre-initialized extended file structure. */
954 static const efdr_t init_file = {
955 { /* FDR structure */
956 0, /* adr: memory address of beginning of file */
957 0, /* rss: file name (of source, if known) */
958 0, /* issBase: file's string space */
959 0, /* cbSs: number of bytes in the ss */
960 0, /* isymBase: beginning of symbols */
961 0, /* csym: count file's of symbols */
962 0, /* ilineBase: file's line symbols */
963 0, /* cline: count of file's line symbols */
964 0, /* ioptBase: file's optimization entries */
965 0, /* copt: count of file's optimization entries */
966 0, /* ipdFirst: start of procedures for this file */
967 0, /* cpd: count of procedures for this file */
968 0, /* iauxBase: file's auxiliary entries */
969 0, /* caux: count of file's auxiliary entries */
970 0, /* rfdBase: index into the file indirect table */
971 0, /* crfd: count file indirect entries */
972 langC, /* lang: language for this file */
973 1, /* fMerge: whether this file can be merged */
974 0, /* fReadin: true if read in (not just created) */
975 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
976 GLEVEL_2, /* glevel: level this file was compiled with */
977 0, /* reserved: reserved for future use */
978 0, /* cbLineOffset: byte offset from header for this file ln's */
979 0, /* cbLine: size of lines for this file */
982 (FDR *)0, /* orig_fdr: original file header pointer */
983 (char *)0, /* name: pointer to filename */
984 0, /* fake: whether this is a faked .file */
985 0, /* void_type: ptr to aux node for void type */
986 0, /* int_type: ptr to aux node for int type */
987 (scope_t *)0, /* cur_scope: current scope being processed */
988 0, /* file_index: current file # */
989 0, /* nested_scopes: # nested scopes */
990 INIT_VARRAY (char), /* strings: local string varray */
991 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
992 INIT_VARRAY (proc_t), /* procs: procedure varray */
993 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
995 (struct efdr *)0, /* next_file: next file structure */
997 (struct hash_control *)0, /* str_hash: string hash table */
998 { 0 }, /* thash_head: type hash table */
1001 static efdr_t *first_file; /* first file descriptor */
1002 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1004 /* Line number information is kept in a list until the assembly is
1006 typedef struct lineno_list {
1007 struct lineno_list *next; /* next element in list */
1008 efdr_t *file; /* file this line is in */
1009 proc_t *proc; /* procedure this line is in */
1010 fragS *frag; /* fragment this line number is in */
1011 unsigned long paddr; /* offset within fragment */
1012 long lineno; /* actual line number */
1015 static lineno_list_t *first_lineno;
1016 static lineno_list_t *last_lineno;
1017 static lineno_list_t **last_lineno_ptr = &first_lineno;
1019 /* Sometimes there will be some .loc statements before a .ent. We
1020 keep them in this list so that we can fill in the procedure pointer
1021 after we see the .ent. */
1022 static lineno_list_t *noproc_lineno;
1024 /* Union of various things that are held in pages. */
1025 typedef union page {
1026 char byte [ PAGE_SIZE ];
1027 unsigned char ubyte [ PAGE_SIZE ];
1028 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1029 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1030 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1031 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1032 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1033 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1034 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1035 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1036 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1037 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1038 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1039 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1040 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1041 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1044 /* Structure holding allocation information for small sized structures. */
1045 typedef struct alloc_info {
1046 char *alloc_name; /* name of this allocation type (must be first) */
1047 page_type *cur_page; /* current page being allocated from */
1048 small_free_t free_list; /* current free list if any */
1049 int unallocated; /* number of elements unallocated on page */
1050 int total_alloc; /* total number of allocations */
1051 int total_free; /* total number of frees */
1052 int total_pages; /* total number of pages allocated */
1055 /* Type information collected together. */
1056 typedef struct type_info {
1057 bt_t basic_type; /* basic type */
1058 int orig_type; /* original COFF-based type */
1059 int num_tq; /* # type qualifiers */
1060 int num_dims; /* # dimensions */
1061 int num_sizes; /* # sizes */
1062 int extra_sizes; /* # extra sizes not tied with dims */
1063 tag_t * tag_ptr; /* tag pointer */
1064 int bitfield; /* symbol is a bitfield */
1065 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1066 symint_t dimensions [N_TQ]; /* dimensions for each array */
1067 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1068 struct/union/enum + bitfield size */
1071 /* Pre-initialized type_info struct. */
1072 static const type_info_t type_info_init = {
1073 bt_Nil, /* basic type */
1074 T_NULL, /* original COFF-based type */
1075 0, /* # type qualifiers */
1076 0, /* # dimensions */
1078 0, /* sizes not tied with dims */
1079 NULL, /* ptr to tag */
1081 { /* type qualifiers */
1109 /* Global hash table for the tags table and global table for file
1112 static varray_t file_desc = INIT_VARRAY (efdr_t);
1114 static struct hash_control *tag_hash;
1116 /* Static types for int and void. Also, remember the last function's
1117 type (which is set up when we encounter the declaration for the
1118 function, and used when the end block for the function is emitted. */
1120 static type_info_t int_type_info;
1121 static type_info_t void_type_info;
1122 static type_info_t last_func_type_info;
1123 static symbolS *last_func_sym_value;
1125 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1126 really should use bt_Void, but this causes the current ecoff GDB to
1127 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1128 2.0) doesn't understand it, even though the compiler generates it.
1129 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1130 suite, but for now go with what works.
1132 It would make sense for the .type and .scl directives to use the
1133 ECOFF numbers directly, rather than using the COFF numbers and
1134 mapping them. Unfortunately, this is historically what mips-tfile
1135 expects, and changing gcc now would be a considerable pain (the
1136 native compiler generates debugging information internally, rather
1137 than via the assembler, so it will never use .type or .scl). */
1139 static const bt_t map_coff_types[] = {
1140 bt_Nil, /* T_NULL */
1142 bt_Char, /* T_CHAR */
1143 bt_Short, /* T_SHORT */
1145 bt_Long, /* T_LONG */
1146 bt_Float, /* T_FLOAT */
1147 bt_Double, /* T_DOUBLE */
1148 bt_Struct, /* T_STRUCT */
1149 bt_Union, /* T_UNION */
1150 bt_Enum, /* T_ENUM */
1151 bt_Enum, /* T_MOE */
1152 bt_UChar, /* T_UCHAR */
1153 bt_UShort, /* T_USHORT */
1154 bt_UInt, /* T_UINT */
1155 bt_ULong /* T_ULONG */
1158 /* Convert COFF storage class to ECOFF storage class. */
1159 static const sc_t map_coff_storage[] = {
1160 sc_Nil, /* 0: C_NULL */
1161 sc_Abs, /* 1: C_AUTO auto var */
1162 sc_Undefined, /* 2: C_EXT external */
1163 sc_Data, /* 3: C_STAT static */
1164 sc_Register, /* 4: C_REG register */
1165 sc_Undefined, /* 5: C_EXTDEF ??? */
1166 sc_Text, /* 6: C_LABEL label */
1167 sc_Text, /* 7: C_ULABEL user label */
1168 sc_Info, /* 8: C_MOS member of struct */
1169 sc_Abs, /* 9: C_ARG argument */
1170 sc_Info, /* 10: C_STRTAG struct tag */
1171 sc_Info, /* 11: C_MOU member of union */
1172 sc_Info, /* 12: C_UNTAG union tag */
1173 sc_Info, /* 13: C_TPDEF typedef */
1174 sc_Data, /* 14: C_USTATIC ??? */
1175 sc_Info, /* 15: C_ENTAG enum tag */
1176 sc_Info, /* 16: C_MOE member of enum */
1177 sc_Register, /* 17: C_REGPARM register parameter */
1178 sc_Bits, /* 18; C_FIELD bitfield */
1260 sc_Text, /* 100: C_BLOCK block start/end */
1261 sc_Text, /* 101: C_FCN function start/end */
1262 sc_Info, /* 102: C_EOS end of struct/union/enum */
1263 sc_Nil, /* 103: C_FILE file start */
1264 sc_Nil, /* 104: C_LINE line number */
1265 sc_Nil, /* 105: C_ALIAS combined type info */
1266 sc_Nil, /* 106: C_HIDDEN ??? */
1269 /* Convert COFF storage class to ECOFF symbol type. */
1270 static const st_t map_coff_sym_type[] = {
1271 st_Nil, /* 0: C_NULL */
1272 st_Local, /* 1: C_AUTO auto var */
1273 st_Global, /* 2: C_EXT external */
1274 st_Static, /* 3: C_STAT static */
1275 st_Local, /* 4: C_REG register */
1276 st_Global, /* 5: C_EXTDEF ??? */
1277 st_Label, /* 6: C_LABEL label */
1278 st_Label, /* 7: C_ULABEL user label */
1279 st_Member, /* 8: C_MOS member of struct */
1280 st_Param, /* 9: C_ARG argument */
1281 st_Block, /* 10: C_STRTAG struct tag */
1282 st_Member, /* 11: C_MOU member of union */
1283 st_Block, /* 12: C_UNTAG union tag */
1284 st_Typedef, /* 13: C_TPDEF typedef */
1285 st_Static, /* 14: C_USTATIC ??? */
1286 st_Block, /* 15: C_ENTAG enum tag */
1287 st_Member, /* 16: C_MOE member of enum */
1288 st_Param, /* 17: C_REGPARM register parameter */
1289 st_Member, /* 18; C_FIELD bitfield */
1371 st_Block, /* 100: C_BLOCK block start/end */
1372 st_Proc, /* 101: C_FCN function start/end */
1373 st_End, /* 102: C_EOS end of struct/union/enum */
1374 st_File, /* 103: C_FILE file start */
1375 st_Nil, /* 104: C_LINE line number */
1376 st_Nil, /* 105: C_ALIAS combined type info */
1377 st_Nil, /* 106: C_HIDDEN ??? */
1380 /* Keep track of different sized allocation requests. */
1381 static alloc_info_t alloc_counts[(int) alloc_type_last];
1383 /* Record whether we have seen any debugging information. */
1384 int ecoff_debugging_seen = 0;
1386 /* Various statics. */
1387 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1388 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1389 static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1390 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1391 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1393 static int debug = 0; /* trace functions */
1395 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1397 static int current_file_idx;
1398 static const char *current_stabs_filename;
1400 /* Pseudo symbol to use when putting stabs into the symbol table. */
1401 #ifndef STABS_SYMBOL
1402 #define STABS_SYMBOL "@stabs"
1405 static char stabs_symbol[] = STABS_SYMBOL;
1407 /* Prototypes for functions defined in this file. */
1409 static void add_varray_page (varray_t *vp);
1410 static symint_t add_string (varray_t *vp,
1411 struct hash_control *hash_tbl,
1413 shash_t **ret_hash);
1414 static localsym_t *add_ecoff_symbol (const char *str, st_t type,
1415 sc_t storage, symbolS *sym,
1416 bfd_vma addend, symint_t value,
1418 static symint_t add_aux_sym_symint (symint_t aux_word);
1419 static symint_t add_aux_sym_rndx (int file_index, symint_t sym_index);
1420 static symint_t add_aux_sym_tir (type_info_t *t,
1422 thash_t **hash_tbl);
1423 static tag_t *get_tag (const char *tag, localsym_t *sym, bt_t basic_type);
1424 static void add_unknown_tag (tag_t *ptag);
1425 static void add_procedure (char *func, int aent);
1426 static void add_file (const char *file_name, int indx, int fake);
1428 static char *sc_to_string (sc_t storage_class);
1429 static char *st_to_string (st_t symbol_type);
1431 static void mark_stabs (int);
1432 static char *ecoff_add_bytes (char **buf, char **bufend,
1433 char *bufptr, unsigned long need);
1434 static unsigned long ecoff_padding_adjust
1435 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1436 unsigned long offset, char **bufptrptr);
1437 static unsigned long ecoff_build_lineno
1438 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1439 unsigned long offset, long *linecntptr);
1440 static unsigned long ecoff_build_symbols
1441 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1442 unsigned long offset);
1443 static unsigned long ecoff_build_procs
1444 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1445 unsigned long offset);
1446 static unsigned long ecoff_build_aux
1447 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1448 unsigned long offset);
1449 static unsigned long ecoff_build_strings (char **buf, char **bufend,
1450 unsigned long offset,
1452 static unsigned long ecoff_build_ss
1453 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1454 unsigned long offset);
1455 static unsigned long ecoff_build_fdr
1456 (const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1457 unsigned long offset);
1458 static void ecoff_setup_ext (void);
1459 static page_type *allocate_cluster (unsigned long npages);
1460 static page_type *allocate_page (void);
1461 static scope_t *allocate_scope (void);
1462 static void free_scope (scope_t *ptr);
1463 static vlinks_t *allocate_vlinks (void);
1464 static shash_t *allocate_shash (void);
1465 static thash_t *allocate_thash (void);
1466 static tag_t *allocate_tag (void);
1467 static void free_tag (tag_t *ptr);
1468 static forward_t *allocate_forward (void);
1469 static thead_t *allocate_thead (void);
1470 static void free_thead (thead_t *ptr);
1471 static lineno_list_t *allocate_lineno_list (void);
1473 /* This function should be called when the assembler starts up. */
1476 ecoff_read_begin_hook (void)
1478 tag_hash = hash_new ();
1479 top_tag_head = allocate_thead ();
1480 top_tag_head->first_tag = (tag_t *) NULL;
1481 top_tag_head->free = (thead_t *) NULL;
1482 top_tag_head->prev = cur_tag_head;
1483 cur_tag_head = top_tag_head;
1486 /* This function should be called when a symbol is created. */
1489 ecoff_symbol_new_hook (symbolS *symbolP)
1491 OBJ_SYMFIELD_TYPE *obj;
1493 /* Make sure that we have a file pointer, but only if we have seen a
1494 file. If we haven't seen a file, then this is a probably special
1495 symbol created by md_begin which may required special handling at
1496 some point. Creating a dummy file with a dummy name is certainly
1498 if (cur_file_ptr == (efdr_t *) NULL
1499 && seen_at_least_1_file ())
1500 add_file ((const char *) NULL, 0, 1);
1501 obj = symbol_get_obj (symbolP);
1502 obj->ecoff_file = cur_file_ptr;
1503 obj->ecoff_symbol = NULL;
1504 obj->ecoff_extern_size = 0;
1508 ecoff_symbol_clone_hook (symbolS *newsymP, symbolS *orgsymP)
1510 OBJ_SYMFIELD_TYPE *n, *o;
1512 n = symbol_get_obj (newsymP);
1513 o = symbol_get_obj (orgsymP);
1514 memcpy (n, o, sizeof *n);
1517 /* Add a page to a varray object. */
1520 add_varray_page (varray_t *vp /* varray to add page to */)
1522 vlinks_t *new_links = allocate_vlinks ();
1525 if (vp->object_size > 1)
1526 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1529 new_links->datum = allocate_page ();
1531 alloc_counts[(int) alloc_type_varray].total_alloc++;
1532 alloc_counts[(int) alloc_type_varray].total_pages++;
1534 new_links->start_index = vp->num_allocated;
1535 vp->objects_last_page = 0;
1537 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1538 vp->first = vp->last = new_links;
1540 { /* 2nd or greater allocation */
1541 new_links->prev = vp->last;
1542 vp->last->next = new_links;
1543 vp->last = new_links;
1547 /* Add a string (and null pad) to one of the string tables. */
1550 add_string (varray_t *vp, /* string obstack */
1551 struct hash_control *hash_tbl, /* ptr to hash table */
1552 const char *str, /* string */
1553 shash_t **ret_hash /* return hash pointer */)
1555 unsigned long len = strlen (str);
1558 if (len >= PAGE_USIZE)
1559 as_fatal (_("string too big (%lu bytes)"), len);
1561 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1562 if (hash_ptr == (shash_t *) NULL)
1566 if (vp->objects_last_page + len >= PAGE_USIZE)
1569 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1570 add_varray_page (vp);
1573 hash_ptr = allocate_shash ();
1574 hash_ptr->indx = vp->num_allocated;
1576 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1578 vp->objects_last_page += len + 1;
1579 vp->num_allocated += len + 1;
1581 strcpy (hash_ptr->string, str);
1583 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1585 as_fatal (_("inserting \"%s\" into string hash table: %s"),
1589 if (ret_hash != (shash_t **) NULL)
1590 *ret_hash = hash_ptr;
1592 return hash_ptr->indx;
1595 /* Add debugging information for a symbol. */
1598 add_ecoff_symbol (const char *str, /* symbol name */
1599 st_t type, /* symbol type */
1600 sc_t storage, /* storage class */
1601 symbolS *sym_value, /* associated symbol. */
1602 bfd_vma addend, /* addend to sym_value. */
1603 symint_t value, /* value of symbol */
1604 symint_t indx /* index to local/aux. syms */)
1612 int scope_delta = 0;
1613 shash_t *hash_ptr = (shash_t *) NULL;
1615 if (cur_file_ptr == (efdr_t *) NULL)
1616 as_fatal (_("no current file pointer"));
1618 vp = &cur_file_ptr->symbols;
1620 if (vp->objects_last_page == vp->objects_per_page)
1621 add_varray_page (vp);
1623 psym = &vp->last->datum->sym[vp->objects_last_page++];
1625 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1626 psym->name = S_GET_NAME (sym_value);
1629 psym->as_sym = sym_value;
1630 if (sym_value != (symbolS *) NULL)
1631 symbol_get_obj (sym_value)->ecoff_symbol = psym;
1632 psym->addend = addend;
1633 psym->file_ptr = cur_file_ptr;
1634 psym->proc_ptr = cur_proc_ptr;
1635 psym->begin_ptr = (localsym_t *) NULL;
1636 psym->index_ptr = (aux_t *) NULL;
1637 psym->forward_ref = (forward_t *) NULL;
1638 psym->sym_index = -1;
1639 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1640 psym->ecoff_sym.asym.value = value;
1641 psym->ecoff_sym.asym.st = (unsigned) type;
1642 psym->ecoff_sym.asym.sc = (unsigned) storage;
1643 psym->ecoff_sym.asym.index = indx;
1645 /* If there is an associated symbol, we wait until the end of the
1646 assembly before deciding where to put the name (it may be just an
1647 external symbol). Otherwise, this is just a debugging symbol and
1648 the name should go with the current file. */
1649 if (sym_value == (symbolS *) NULL)
1650 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1652 : add_string (&cur_file_ptr->strings,
1653 cur_file_ptr->str_hash,
1657 ++vp->num_allocated;
1659 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1662 /* Save the symbol within the hash table if this is a static
1663 item, and it has a name. */
1664 if (hash_ptr != (shash_t *) NULL
1665 && (type == st_Global || type == st_Static || type == st_Label
1666 || type == st_Proc || type == st_StaticProc))
1667 hash_ptr->sym_ptr = psym;
1669 /* push or pop a scope if appropriate. */
1675 case st_File: /* beginning of file */
1676 case st_Proc: /* procedure */
1677 case st_StaticProc: /* static procedure */
1678 case st_Block: /* begin scope */
1679 pscope = allocate_scope ();
1680 pscope->prev = cur_file_ptr->cur_scope;
1681 pscope->lsym = psym;
1682 pscope->type = type;
1683 cur_file_ptr->cur_scope = pscope;
1685 if (type != st_File)
1688 /* For every block type except file, struct, union, or
1689 enumeration blocks, push a level on the tag stack. We omit
1690 file types, so that tags can span file boundaries. */
1691 if (type != st_File && storage != sc_Info)
1693 ptag_head = allocate_thead ();
1694 ptag_head->first_tag = 0;
1695 ptag_head->prev = cur_tag_head;
1696 cur_tag_head = ptag_head;
1701 pscope = cur_file_ptr->cur_scope;
1702 if (pscope == (scope_t *) NULL)
1703 as_fatal (_("too many st_End's"));
1706 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1708 psym->begin_ptr = pscope->lsym;
1710 if (begin_type != st_File)
1713 /* Except for file, structure, union, or enumeration end
1714 blocks remove all tags created within this scope. */
1715 if (begin_type != st_File && storage != sc_Info)
1717 ptag_head = cur_tag_head;
1718 cur_tag_head = ptag_head->prev;
1720 for (ptag = ptag_head->first_tag;
1721 ptag != (tag_t *) NULL;
1724 if (ptag->forward_ref != (forward_t *) NULL)
1725 add_unknown_tag (ptag);
1727 ptag_next = ptag->same_block;
1728 ptag->hash_ptr->tag_ptr = ptag->same_name;
1732 free_thead (ptag_head);
1735 cur_file_ptr->cur_scope = pscope->prev;
1737 /* block begin gets next sym #. This is set when we know
1738 the symbol index value. */
1740 /* Functions push two or more aux words as follows:
1741 1st word: index+1 of the end symbol (filled in later).
1742 2nd word: type of the function (plus any aux words needed).
1743 Also, tie the external pointer back to the function begin symbol. */
1744 if (begin_type != st_File && begin_type != st_Block)
1747 varray_t *svp = &cur_file_ptr->aux_syms;
1749 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1750 pscope->lsym->index_ptr =
1751 &svp->last->datum->aux[svp->objects_last_page - 1];
1752 ty = add_aux_sym_tir (&last_func_type_info,
1754 &cur_file_ptr->thash_head[0]);
1756 /* This seems to be unnecessary. I'm not even sure what it is
1757 * intended to do. It's from mips-tfile.
1758 * if (last_func_sym_value != (symbolS *) NULL)
1760 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1761 * last_func_sym_value->index = ty;
1766 free_scope (pscope);
1770 cur_file_ptr->nested_scopes += scope_delta;
1773 if (debug && type != st_File
1774 && (debug > 2 || type == st_Block || type == st_End
1775 || type == st_Proc || type == st_StaticProc))
1777 char *sc_str = sc_to_string (storage);
1778 char *st_str = st_to_string (type);
1779 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1782 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1783 value, depth, sc_str);
1785 if (str_start && str_end_p1 - str_start > 0)
1786 fprintf (stderr, " st= %-11s name= %.*s\n",
1787 st_str, str_end_p1 - str_start, str_start);
1790 unsigned long len = strlen (st_str);
1791 fprintf (stderr, " st= %.*s\n", len - 1, st_str);
1799 /* Add an auxiliary symbol (passing a symint). This is actually used
1800 for integral aux types, not just symints. */
1803 add_aux_sym_symint (symint_t aux_word /* auxiliary information word */)
1808 if (cur_file_ptr == (efdr_t *) NULL)
1809 as_fatal (_("no current file pointer"));
1811 vp = &cur_file_ptr->aux_syms;
1813 if (vp->objects_last_page == vp->objects_per_page)
1814 add_varray_page (vp);
1816 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1817 aux_ptr->type = aux_isym;
1818 aux_ptr->data.isym = aux_word;
1820 return vp->num_allocated++;
1823 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1826 add_aux_sym_rndx (int file_index, symint_t sym_index)
1831 if (cur_file_ptr == (efdr_t *) NULL)
1832 as_fatal (_("no current file pointer"));
1834 vp = &cur_file_ptr->aux_syms;
1836 if (vp->objects_last_page == vp->objects_per_page)
1837 add_varray_page (vp);
1839 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1840 aux_ptr->type = aux_rndx;
1841 aux_ptr->data.rndx.rfd = file_index;
1842 aux_ptr->data.rndx.index = sym_index;
1844 return vp->num_allocated++;
1847 /* Add an auxiliary symbol (passing the basic type and possibly
1848 type qualifiers). */
1851 add_aux_sym_tir (type_info_t *t, /* current type information */
1852 hash_state_t state, /* whether to hash type or not */
1853 thash_t **hash_tbl /* pointer to hash table to use */)
1857 static AUXU init_aux;
1862 if (cur_file_ptr == (efdr_t *) NULL)
1863 as_fatal (_("no current file pointer"));
1865 vp = &cur_file_ptr->aux_syms;
1868 aux.ti.bt = (int) t->basic_type;
1869 aux.ti.continued = 0;
1870 aux.ti.fBitfield = t->bitfield;
1872 aux.ti.tq0 = (int) t->type_qualifiers[0];
1873 aux.ti.tq1 = (int) t->type_qualifiers[1];
1874 aux.ti.tq2 = (int) t->type_qualifiers[2];
1875 aux.ti.tq3 = (int) t->type_qualifiers[3];
1876 aux.ti.tq4 = (int) t->type_qualifiers[4];
1877 aux.ti.tq5 = (int) t->type_qualifiers[5];
1879 /* For anything that adds additional information, we must not hash,
1880 so check here, and reset our state. */
1882 if (state != hash_no
1883 && (t->type_qualifiers[0] == tq_Array
1884 || t->type_qualifiers[1] == tq_Array
1885 || t->type_qualifiers[2] == tq_Array
1886 || t->type_qualifiers[3] == tq_Array
1887 || t->type_qualifiers[4] == tq_Array
1888 || t->type_qualifiers[5] == tq_Array
1889 || t->basic_type == bt_Struct
1890 || t->basic_type == bt_Union
1891 || t->basic_type == bt_Enum
1893 || t->num_dims > 0))
1896 /* See if we can hash this type, and save some space, but some types
1897 can't be hashed (because they contain arrays or continuations),
1898 and others can be put into the hash list, but cannot use existing
1899 types because other aux entries precede this one. */
1901 if (state != hash_no)
1906 hi = aux.isym & ((1 << HASHBITS) - 1);
1909 for (hash_ptr = hash_tbl[hi];
1910 hash_ptr != (thash_t *)0;
1911 hash_ptr = hash_ptr->next)
1913 if (aux.isym == hash_ptr->type.isym)
1917 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1918 return hash_ptr->indx;
1920 if (hash_ptr == (thash_t *) NULL)
1922 hash_ptr = allocate_thash ();
1923 hash_ptr->next = hash_tbl[hi];
1924 hash_ptr->type = aux;
1925 hash_ptr->indx = vp->num_allocated;
1926 hash_tbl[hi] = hash_ptr;
1930 /* Everything is set up, add the aux symbol. */
1931 if (vp->objects_last_page == vp->objects_per_page)
1932 add_varray_page (vp);
1934 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1935 aux_ptr->type = aux_tir;
1936 aux_ptr->data = aux;
1938 ret = vp->num_allocated++;
1940 /* Add bitfield length if it exists.
1942 NOTE: Mips documentation claims bitfield goes at the end of the
1943 AUX record, but the DECstation compiler emits it here.
1944 (This would only make a difference for enum bitfields.)
1946 Also note: We use the last size given since gcc may emit 2
1947 for an enum bitfield. */
1950 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]);
1952 /* Add tag information if needed. Structure, union, and enum
1953 references add 2 aux symbols: a [file index, symbol index]
1954 pointer to the structure type, and the current file index. */
1956 if (t->basic_type == bt_Struct
1957 || t->basic_type == bt_Union
1958 || t->basic_type == bt_Enum)
1960 symint_t file_index = t->tag_ptr->ifd;
1961 localsym_t *sym = t->tag_ptr->sym;
1962 forward_t *forward_ref = allocate_forward ();
1964 if (sym != (localsym_t *) NULL)
1966 forward_ref->next = sym->forward_ref;
1967 sym->forward_ref = forward_ref;
1971 forward_ref->next = t->tag_ptr->forward_ref;
1972 t->tag_ptr->forward_ref = forward_ref;
1975 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1976 forward_ref->index_ptr
1977 = &vp->last->datum->aux[vp->objects_last_page - 1];
1979 (void) add_aux_sym_symint (file_index);
1980 forward_ref->ifd_ptr
1981 = &vp->last->datum->aux[vp->objects_last_page - 1];
1984 /* Add information about array bounds if they exist. */
1985 for (i = 0; i < t->num_dims; i++)
1987 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1988 cur_file_ptr->int_type);
1990 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1991 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1992 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1993 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1995 : (t->sizes[i] * 8) / t->dimensions[i]);
1998 /* NOTE: Mips documentation claims that the bitfield width goes here.
1999 But it needs to be emitted earlier. */
2004 /* Add a tag to the tag table (unless it already exists). */
2007 get_tag (const char *tag, /* tag name */
2008 localsym_t *sym, /* tag start block */
2009 bt_t basic_type /* bt_Struct, bt_Union, or bt_Enum */)
2015 if (cur_file_ptr == (efdr_t *) NULL)
2016 as_fatal (_("no current file pointer"));
2018 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2020 if (hash_ptr != (shash_t *) NULL
2021 && hash_ptr->tag_ptr != (tag_t *) NULL)
2023 tag_ptr = hash_ptr->tag_ptr;
2024 if (sym != (localsym_t *) NULL)
2026 tag_ptr->basic_type = basic_type;
2027 tag_ptr->ifd = cur_file_ptr->file_index;
2033 if (hash_ptr == (shash_t *) NULL)
2037 perm = xstrdup (tag);
2038 hash_ptr = allocate_shash ();
2039 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2041 as_fatal (_("inserting \"%s\" into tag hash table: %s"),
2043 hash_ptr->string = perm;
2046 tag_ptr = allocate_tag ();
2047 tag_ptr->forward_ref = (forward_t *) NULL;
2048 tag_ptr->hash_ptr = hash_ptr;
2049 tag_ptr->same_name = hash_ptr->tag_ptr;
2050 tag_ptr->basic_type = basic_type;
2052 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2054 : cur_file_ptr->file_index);
2055 tag_ptr->same_block = cur_tag_head->first_tag;
2057 cur_tag_head->first_tag = tag_ptr;
2058 hash_ptr->tag_ptr = tag_ptr;
2063 /* Add an unknown {struct, union, enum} tag. */
2066 add_unknown_tag (tag_t *ptag /* pointer to tag information */)
2068 shash_t *hash_ptr = ptag->hash_ptr;
2069 char *name = hash_ptr->string;
2076 char *agg_type = "{unknown aggregate type}";
2077 switch (ptag->basic_type)
2079 case bt_Struct: agg_type = "struct"; break;
2080 case bt_Union: agg_type = "union"; break;
2081 case bt_Enum: agg_type = "enum"; break;
2085 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2086 hash_ptr->len, name_start);
2090 sym = add_ecoff_symbol (name,
2098 (void) add_ecoff_symbol (name,
2106 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2108 *pf = ptag->forward_ref;
2111 /* Add a procedure to the current file's list of procedures, and record
2112 this is the current procedure. If AENT, then only set the requested
2113 symbol's function type. */
2116 add_procedure (char *func /* func name */, int aent)
2119 proc_t *new_proc_ptr;
2124 fputc ('\n', stderr);
2127 /* Set the BSF_FUNCTION flag for the symbol. */
2128 sym = symbol_find_or_make (func);
2129 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
2134 if (cur_file_ptr == (efdr_t *) NULL)
2135 as_fatal (_("no current file pointer"));
2137 vp = &cur_file_ptr->procs;
2139 if (vp->objects_last_page == vp->objects_per_page)
2140 add_varray_page (vp);
2142 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2144 if (first_proc_ptr == (proc_t *) NULL)
2145 first_proc_ptr = new_proc_ptr;
2147 vp->num_allocated++;
2149 new_proc_ptr->pdr.isym = -1;
2150 new_proc_ptr->pdr.iline = -1;
2151 new_proc_ptr->pdr.lnLow = -1;
2152 new_proc_ptr->pdr.lnHigh = -1;
2154 /* Push the start of the function. */
2155 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2156 sym, (bfd_vma) 0, (symint_t) 0,
2161 /* Fill in the linenos preceding the .ent, if any. */
2162 if (noproc_lineno != (lineno_list_t *) NULL)
2166 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2167 l->proc = new_proc_ptr;
2168 *last_lineno_ptr = noproc_lineno;
2169 while (*last_lineno_ptr != NULL)
2171 last_lineno = *last_lineno_ptr;
2172 last_lineno_ptr = &last_lineno->next;
2174 noproc_lineno = (lineno_list_t *) NULL;
2179 ecoff_get_cur_proc_sym (void)
2181 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL);
2184 /* Add a new filename, and set up all of the file relative
2185 virtual arrays (strings, symbols, aux syms, etc.). Record
2186 where the current file structure lives. */
2189 add_file (const char *file_name, int indx ATTRIBUTE_UNUSED, int fake)
2196 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2199 /* If the file name is NULL, then no .file symbol appeared, and we
2200 want to use the actual file name. */
2201 if (file_name == (const char *) NULL)
2203 if (first_file != (efdr_t *) NULL)
2204 as_fatal (_("fake .file after real one"));
2205 file_name = as_where ((unsigned int *) NULL);
2207 /* Automatically generate ECOFF debugging information, since I
2208 think that's what other ECOFF assemblers do. We don't do
2209 this if we see a .file directive with a string, since that
2210 implies that some sort of debugging information is being
2212 if (! symbol_table_frozen && debug_type == DEBUG_UNSPECIFIED)
2213 debug_type = DEBUG_ECOFF;
2215 else if (debug_type == DEBUG_UNSPECIFIED)
2216 debug_type = DEBUG_NONE;
2220 listing_source_file (file_name);
2223 current_stabs_filename = file_name;
2225 /* If we're creating stabs, then we don't actually make a new FDR.
2226 Instead, we just create a stabs symbol. */
2229 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2230 symbol_new ("L0\001", now_seg,
2231 (valueT) frag_now_fix (),
2233 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2237 first_ch = *file_name;
2239 /* FIXME: We can't safely merge files which have line number
2240 information (fMerge will be zero in this case). Otherwise, we
2241 get incorrect line number debugging info. See for instance
2242 ecoff_build_lineno, which will end up setting all file->fdr.*
2243 fields multiple times, resulting in incorrect debug info. In
2244 order to make this work right, all line number and symbol info
2245 for the same source file has to be adjacent in the object file,
2246 so that a single file descriptor can be used to point to them.
2247 This would require maintaining file specific lists of line
2248 numbers and symbols for each file, so that they can be merged
2249 together (or output together) when two .file pseudo-ops are
2250 merged into one file descriptor. */
2252 /* See if the file has already been created. */
2253 for (fil_ptr = first_file;
2254 fil_ptr != (efdr_t *) NULL;
2255 fil_ptr = fil_ptr->next_file)
2257 if (first_ch == fil_ptr->name[0]
2258 && filename_cmp (file_name, fil_ptr->name) == 0
2259 && fil_ptr->fdr.fMerge)
2261 cur_file_ptr = fil_ptr;
2263 cur_file_ptr->fake = 0;
2268 /* If this is a new file, create it. */
2269 if (fil_ptr == (efdr_t *) NULL)
2271 if (file_desc.objects_last_page == file_desc.objects_per_page)
2272 add_varray_page (&file_desc);
2274 fil_ptr = cur_file_ptr =
2275 &file_desc.last->datum->file[file_desc.objects_last_page++];
2276 *fil_ptr = init_file;
2278 fil_ptr->file_index = current_file_idx++;
2279 ++file_desc.num_allocated;
2281 fil_ptr->fake = fake;
2283 /* Allocate the string hash table. */
2284 fil_ptr->str_hash = hash_new ();
2286 /* Make sure 0 byte in string table is null */
2287 add_string (&fil_ptr->strings,
2292 if (strlen (file_name) > PAGE_USIZE - 2)
2293 as_fatal (_("filename goes over one page boundary"));
2295 /* Push the start of the filename. We assume that the filename
2296 will be stored at string offset 1. */
2297 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2298 (symbolS *) NULL, (bfd_vma) 0,
2299 (symint_t) 0, (symint_t) 0);
2300 fil_ptr->fdr.rss = 1;
2301 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2303 /* Update the linked list of file descriptors. */
2304 *last_file_ptr = fil_ptr;
2305 last_file_ptr = &fil_ptr->next_file;
2307 /* Add void & int types to the file (void should be first to catch
2308 errant 0's within the index fields). */
2309 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2311 &cur_file_ptr->thash_head[0]);
2313 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2315 &cur_file_ptr->thash_head[0]);
2319 /* This function is called when the assembler notices a preprocessor
2320 directive switching to a new file. This will not happen in
2321 compiler output, only in hand coded assembler. */
2324 ecoff_new_file (const char *name, int appfile ATTRIBUTE_UNUSED)
2326 if (cur_file_ptr != NULL && filename_cmp (cur_file_ptr->name, name) == 0)
2328 add_file (name, 0, 0);
2330 /* This is a hand coded assembler file, so automatically turn on
2331 debugging information. */
2332 if (debug_type == DEBUG_UNSPECIFIED)
2333 debug_type = DEBUG_ECOFF;
2338 /* Convert storage class to string. */
2341 sc_to_string (storage_class)
2344 switch (storage_class)
2346 case sc_Nil: return "Nil,";
2347 case sc_Text: return "Text,";
2348 case sc_Data: return "Data,";
2349 case sc_Bss: return "Bss,";
2350 case sc_Register: return "Register,";
2351 case sc_Abs: return "Abs,";
2352 case sc_Undefined: return "Undefined,";
2353 case sc_CdbLocal: return "CdbLocal,";
2354 case sc_Bits: return "Bits,";
2355 case sc_CdbSystem: return "CdbSystem,";
2356 case sc_RegImage: return "RegImage,";
2357 case sc_Info: return "Info,";
2358 case sc_UserStruct: return "UserStruct,";
2359 case sc_SData: return "SData,";
2360 case sc_SBss: return "SBss,";
2361 case sc_RData: return "RData,";
2362 case sc_Var: return "Var,";
2363 case sc_Common: return "Common,";
2364 case sc_SCommon: return "SCommon,";
2365 case sc_VarRegister: return "VarRegister,";
2366 case sc_Variant: return "Variant,";
2367 case sc_SUndefined: return "SUndefined,";
2368 case sc_Init: return "Init,";
2369 case sc_Max: return "Max,";
2379 /* Convert symbol type to string. */
2382 st_to_string (symbol_type)
2385 switch (symbol_type)
2387 case st_Nil: return "Nil,";
2388 case st_Global: return "Global,";
2389 case st_Static: return "Static,";
2390 case st_Param: return "Param,";
2391 case st_Local: return "Local,";
2392 case st_Label: return "Label,";
2393 case st_Proc: return "Proc,";
2394 case st_Block: return "Block,";
2395 case st_End: return "End,";
2396 case st_Member: return "Member,";
2397 case st_Typedef: return "Typedef,";
2398 case st_File: return "File,";
2399 case st_RegReloc: return "RegReloc,";
2400 case st_Forward: return "Forward,";
2401 case st_StaticProc: return "StaticProc,";
2402 case st_Constant: return "Constant,";
2403 case st_Str: return "String,";
2404 case st_Number: return "Number,";
2405 case st_Expr: return "Expr,";
2406 case st_Type: return "Type,";
2407 case st_Max: return "Max,";
2415 /* Parse .begin directives which have a label as the first argument
2416 which gives the location of the start of the block. */
2419 ecoff_directive_begin (int ignore ATTRIBUTE_UNUSED)
2424 if (cur_file_ptr == (efdr_t *) NULL)
2426 as_warn (_(".begin directive without a preceding .file directive"));
2427 demand_empty_rest_of_line ();
2431 if (cur_proc_ptr == (proc_t *) NULL)
2433 as_warn (_(".begin directive without a preceding .ent directive"));
2434 demand_empty_rest_of_line ();
2438 name_end = get_symbol_name (&name);
2440 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2441 symbol_find_or_make (name),
2442 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2444 (void) restore_line_pointer (name_end);
2446 /* The line number follows, but we don't use it. */
2447 (void) get_absolute_expression ();
2448 demand_empty_rest_of_line ();
2451 /* Parse .bend directives which have a label as the first argument
2452 which gives the location of the end of the block. */
2455 ecoff_directive_bend (int ignore ATTRIBUTE_UNUSED)
2461 if (cur_file_ptr == (efdr_t *) NULL)
2463 as_warn (_(".bend directive without a preceding .file directive"));
2464 demand_empty_rest_of_line ();
2468 if (cur_proc_ptr == (proc_t *) NULL)
2470 as_warn (_(".bend directive without a preceding .ent directive"));
2471 demand_empty_rest_of_line ();
2475 name_end = get_symbol_name (&name);
2477 /* The value is the distance between the .bend directive and the
2478 corresponding symbol. We fill in the offset when we write out
2480 endsym = symbol_find (name);
2481 if (endsym == (symbolS *) NULL)
2482 as_warn (_(".bend directive names unknown symbol"));
2484 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2485 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2487 restore_line_pointer (name_end);
2489 /* The line number follows, but we don't use it. */
2490 (void) get_absolute_expression ();
2491 demand_empty_rest_of_line ();
2494 /* COFF debugging information is provided as a series of directives
2495 (.def, .scl, etc.). We build up information as we read the
2496 directives in the following static variables, and file it away when
2497 we reach the .endef directive. */
2498 static char *coff_sym_name;
2499 static type_info_t coff_type;
2500 static sc_t coff_storage_class;
2501 static st_t coff_symbol_typ;
2502 static int coff_is_function;
2503 static char *coff_tag;
2504 static valueT coff_value;
2505 static symbolS *coff_sym_value;
2506 static bfd_vma coff_sym_addend;
2507 static int coff_inside_enumeration;
2509 /* Handle a .def directive: start defining a symbol. */
2512 ecoff_directive_def (int ignore ATTRIBUTE_UNUSED)
2517 ecoff_debugging_seen = 1;
2521 name_end = get_symbol_name (&name);
2523 if (coff_sym_name != (char *) NULL)
2524 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2525 else if (*name == '\0')
2526 as_warn (_("empty symbol name in .def; ignored"));
2529 if (coff_sym_name != (char *) NULL)
2530 free (coff_sym_name);
2531 if (coff_tag != (char *) NULL)
2534 coff_sym_name = xstrdup (name);
2535 coff_type = type_info_init;
2536 coff_storage_class = sc_Nil;
2537 coff_symbol_typ = st_Nil;
2538 coff_is_function = 0;
2539 coff_tag = (char *) NULL;
2541 coff_sym_value = (symbolS *) NULL;
2542 coff_sym_addend = 0;
2545 restore_line_pointer (name_end);
2547 demand_empty_rest_of_line ();
2550 /* Handle a .dim directive, used to give dimensions for an array. The
2551 arguments are comma separated numbers. mips-tfile assumes that
2552 there will not be more than 6 dimensions, and gdb won't read any
2553 more than that anyhow, so I will also make that assumption. */
2556 ecoff_directive_dim (int ignore ATTRIBUTE_UNUSED)
2561 if (coff_sym_name == (char *) NULL)
2563 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2564 demand_empty_rest_of_line ();
2568 for (i = 0; i < N_TQ; i++)
2571 dimens[i] = get_absolute_expression ();
2572 if (*input_line_pointer == ',')
2573 ++input_line_pointer;
2576 if (*input_line_pointer != '\n'
2577 && *input_line_pointer != ';')
2578 as_warn (_("badly formed .dim directive"));
2586 /* The dimensions are stored away in reverse order. */
2589 if (coff_type.num_dims >= N_TQ)
2591 as_warn (_("too many .dim entries"));
2594 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2595 ++coff_type.num_dims;
2598 demand_empty_rest_of_line ();
2601 /* Handle a .scl directive, which sets the COFF storage class of the
2605 ecoff_directive_scl (int ignore ATTRIBUTE_UNUSED)
2609 if (coff_sym_name == (char *) NULL)
2611 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2612 demand_empty_rest_of_line ();
2616 val = get_absolute_expression ();
2618 coff_symbol_typ = map_coff_sym_type[val];
2619 coff_storage_class = map_coff_storage[val];
2621 demand_empty_rest_of_line ();
2624 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2625 .size can have multiple arguments. We humor it, although gcc will
2626 never generate more than one argument. */
2629 ecoff_directive_size (int ignore ATTRIBUTE_UNUSED)
2634 if (coff_sym_name == (char *) NULL)
2636 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2637 demand_empty_rest_of_line ();
2641 for (i = 0; i < N_TQ; i++)
2644 sizes[i] = get_absolute_expression ();
2645 if (*input_line_pointer == ',')
2646 ++input_line_pointer;
2649 if (*input_line_pointer != '\n'
2650 && *input_line_pointer != ';')
2651 as_warn (_("badly formed .size directive"));
2659 /* The sizes are stored away in reverse order. */
2662 if (coff_type.num_sizes >= N_TQ)
2664 as_warn (_("too many .size entries"));
2667 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2668 ++coff_type.num_sizes;
2671 demand_empty_rest_of_line ();
2674 /* Handle the .type directive, which gives the COFF type of the
2678 ecoff_directive_type (int ignore ATTRIBUTE_UNUSED)
2684 if (coff_sym_name == (char *) NULL)
2686 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2687 demand_empty_rest_of_line ();
2691 val = get_absolute_expression ();
2693 coff_type.orig_type = BTYPE (val);
2694 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2696 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2697 while (val & ~N_BTMASK)
2699 if (tq_ptr == &coff_type.type_qualifiers[0])
2701 /* FIXME: We could handle this by setting the continued bit.
2702 There would still be a limit: the .type argument can not
2704 as_warn (_("the type of %s is too complex; it will be simplified"),
2710 else if (ISFCN (val))
2711 *--tq_ptr = tq_Proc;
2712 else if (ISARY (val))
2713 *--tq_ptr = tq_Array;
2715 as_fatal (_("Unrecognized .type argument"));
2720 tq_shft = &coff_type.type_qualifiers[0];
2721 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2722 *tq_shft++ = *tq_ptr++;
2724 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2726 /* If this is a function, ignore it, so that we don't get two
2727 entries (one from the .ent, and one for the .def that
2728 precedes it). Save the type information so that the end
2729 block can properly add it after the begin block index. For
2730 MIPS knows what reason, we must strip off the function type
2732 coff_is_function = 1;
2733 tq_shft[-1] = tq_Nil;
2736 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2737 *tq_shft++ = tq_Nil;
2739 demand_empty_rest_of_line ();
2742 /* Handle the .tag directive, which gives the name of a structure,
2746 ecoff_directive_tag (int ignore ATTRIBUTE_UNUSED)
2751 if (coff_sym_name == (char *) NULL)
2753 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2754 demand_empty_rest_of_line ();
2758 name_end = get_symbol_name (&name);
2760 coff_tag = xstrdup (name);
2762 (void) restore_line_pointer (name_end);
2764 demand_empty_rest_of_line ();
2767 /* Handle the .val directive, which gives the value of the symbol. It
2768 may be the name of a static or global symbol. */
2771 ecoff_directive_val (int ignore ATTRIBUTE_UNUSED)
2775 if (coff_sym_name == (char *) NULL)
2777 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2778 demand_empty_rest_of_line ();
2783 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2785 as_bad (_(".val expression is too complex"));
2786 demand_empty_rest_of_line ();
2790 if (exp.X_op == O_constant)
2791 coff_value = exp.X_add_number;
2794 coff_sym_value = exp.X_add_symbol;
2795 coff_sym_addend = exp.X_add_number;
2798 demand_empty_rest_of_line ();
2801 /* Handle the .endef directive, which terminates processing of COFF
2802 debugging information for a symbol. */
2805 ecoff_directive_endef (int ignore ATTRIBUTE_UNUSED)
2811 demand_empty_rest_of_line ();
2813 if (coff_sym_name == (char *) NULL)
2815 as_warn (_(".endef pseudo-op used before .def; ignored"));
2819 name = coff_sym_name;
2820 coff_sym_name = (char *) NULL;
2822 /* If the symbol is a static or external, we have already gotten the
2823 appropriate type and class, so make sure we don't override those
2824 values. This is needed because there are some type and classes
2825 that are not in COFF, such as short data, etc. */
2826 if (coff_sym_value != (symbolS *) NULL)
2828 coff_symbol_typ = st_Nil;
2829 coff_storage_class = sc_Nil;
2832 coff_type.extra_sizes = coff_tag != (char *) NULL;
2833 if (coff_type.num_dims > 0)
2835 int diff = coff_type.num_dims - coff_type.num_sizes;
2836 int i = coff_type.num_dims - 1;
2839 if (coff_type.num_sizes != 1 || diff < 0)
2841 as_warn (_("bad COFF debugging information"));
2845 /* If this is an array, make sure the same number of dimensions
2846 and sizes were passed, creating extra sizes for multiply
2847 dimensioned arrays if not passed. */
2848 coff_type.extra_sizes = 0;
2851 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2854 coff_type.sizes[j] = (((j - diff) >= 0)
2855 ? coff_type.sizes[j - diff]
2860 coff_type.num_sizes = i + 1;
2861 for (i--; i >= 0; i--)
2862 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2864 : (coff_type.sizes[i + 1]
2865 / coff_type.dimensions[i + 1]));
2868 else if (coff_symbol_typ == st_Member
2869 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2871 /* Is this a bitfield? This is indicated by a structure member
2872 having a size field that isn't an array. */
2873 coff_type.bitfield = 1;
2876 /* Except for enumeration members & begin/ending of scopes, put the
2877 type word in the aux. symbol table. */
2878 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2880 else if (coff_inside_enumeration)
2881 indx = cur_file_ptr->void_type;
2884 if (coff_type.basic_type == bt_Struct
2885 || coff_type.basic_type == bt_Union
2886 || coff_type.basic_type == bt_Enum)
2888 if (coff_tag == (char *) NULL)
2890 as_warn (_("no tag specified for %s"), name);
2894 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2895 coff_type.basic_type);
2898 if (coff_is_function)
2900 last_func_type_info = coff_type;
2901 last_func_sym_value = coff_sym_value;
2905 indx = add_aux_sym_tir (&coff_type,
2907 &cur_file_ptr->thash_head[0]);
2910 /* Do any last minute adjustments that are necessary. */
2911 switch (coff_symbol_typ)
2916 /* For the beginning of structs, unions, and enumerations, the
2917 size info needs to be passed in the value field. */
2919 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2922 as_warn (_("bad COFF debugging information"));
2926 coff_value = coff_type.sizes[0];
2928 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2931 /* For the end of structs, unions, and enumerations, omit the
2932 name which is always ".eos". This needs to be done last, so
2933 that any error reporting above gives the correct name. */
2936 name = (char *) NULL;
2938 coff_inside_enumeration = 0;
2941 /* Members of structures and unions that aren't bitfields, need
2942 to adjust the value from a byte offset to a bit offset.
2943 Members of enumerations do not have the value adjusted, and
2944 can be distinguished by indx == indexNil. For enumerations,
2945 update the maximum enumeration value. */
2947 if (! coff_type.bitfield && ! coff_inside_enumeration)
2953 /* Add the symbol. */
2954 sym = add_ecoff_symbol (name,
2959 (symint_t) coff_value,
2962 /* deal with struct, union, and enum tags. */
2963 if (coff_symbol_typ == st_Block)
2965 /* Create or update the tag information. */
2966 tag_t *tag_ptr = get_tag (name,
2968 coff_type.basic_type);
2971 /* Remember any forward references. */
2972 for (pf = &sym->forward_ref;
2973 *pf != (forward_t *) NULL;
2976 *pf = tag_ptr->forward_ref;
2977 tag_ptr->forward_ref = (forward_t *) NULL;
2981 /* Parse .end directives. */
2984 ecoff_directive_end (int ignore ATTRIBUTE_UNUSED)
2990 if (cur_file_ptr == (efdr_t *) NULL)
2992 as_warn (_(".end directive without a preceding .file directive"));
2993 demand_empty_rest_of_line ();
2997 if (cur_proc_ptr == (proc_t *) NULL)
2999 as_warn (_(".end directive without a preceding .ent directive"));
3000 demand_empty_rest_of_line ();
3004 name_end = get_symbol_name (&name);
3006 if (name == input_line_pointer)
3008 as_warn (_(".end directive has no name"));
3009 (void) restore_line_pointer (name_end);
3010 demand_empty_rest_of_line ();
3014 /* The value is the distance between the .end directive and the
3015 corresponding symbol. We create a fake symbol to hold the
3016 current location, and put in the offset when we write out the
3018 ent = symbol_find (name);
3019 if (ent == (symbolS *) NULL)
3020 as_warn (_(".end directive names unknown symbol"));
3022 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3023 symbol_new ("L0\001", now_seg,
3024 (valueT) frag_now_fix (),
3026 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3028 cur_proc_ptr = (proc_t *) NULL;
3030 (void) restore_line_pointer (name_end);
3031 demand_empty_rest_of_line ();
3034 /* Parse .ent directives. */
3037 ecoff_directive_ent (int aent)
3042 if (cur_file_ptr == (efdr_t *) NULL)
3043 add_file ((const char *) NULL, 0, 1);
3045 if (!aent && cur_proc_ptr != (proc_t *) NULL)
3047 as_warn (_("second .ent directive found before .end directive"));
3048 demand_empty_rest_of_line ();
3052 name_end = get_symbol_name (&name);
3054 if (name == input_line_pointer)
3056 as_warn (_("%s directive has no name"), aent ? ".aent" : ".ent");
3057 (void) restore_line_pointer (name_end);
3058 demand_empty_rest_of_line ();
3062 add_procedure (name, aent);
3064 (void) restore_line_pointer (name_end);
3066 /* The .ent directive is sometimes followed by a number. I'm not
3067 really sure what the number means. I don't see any way to store
3068 the information in the PDR. The Irix 4 assembler seems to ignore
3071 if (*input_line_pointer == ',')
3073 ++input_line_pointer;
3076 if (ISDIGIT (*input_line_pointer)
3077 || *input_line_pointer == '-')
3078 (void) get_absolute_expression ();
3080 demand_empty_rest_of_line ();
3083 /* Parse .extern directives. */
3086 ecoff_directive_extern (int ignore ATTRIBUTE_UNUSED)
3093 c = get_symbol_name (&name);
3094 symbolp = symbol_find_or_make (name);
3095 (void) restore_line_pointer (c);
3097 S_SET_EXTERNAL (symbolp);
3099 if (*input_line_pointer == ',')
3100 ++input_line_pointer;
3101 size = get_absolute_expression ();
3103 symbol_get_obj (symbolp)->ecoff_extern_size = size;
3106 /* Parse .file directives. */
3109 ecoff_directive_file (int ignore ATTRIBUTE_UNUSED)
3115 if (cur_proc_ptr != (proc_t *) NULL)
3117 as_warn (_("no way to handle .file within .ent/.end section"));
3118 demand_empty_rest_of_line ();
3122 indx = (int) get_absolute_expression ();
3124 /* FIXME: we don't have to save the name here. */
3125 name = demand_copy_C_string (&len);
3127 add_file (name, indx - 1, 0);
3129 demand_empty_rest_of_line ();
3132 /* Parse .fmask directives. */
3135 ecoff_directive_fmask (int ignore ATTRIBUTE_UNUSED)
3139 if (cur_proc_ptr == (proc_t *) NULL)
3141 as_warn (_(".fmask outside of .ent"));
3142 demand_empty_rest_of_line ();
3146 if (get_absolute_expression_and_terminator (&val) != ',')
3148 as_warn (_("bad .fmask directive"));
3149 --input_line_pointer;
3150 demand_empty_rest_of_line ();
3154 cur_proc_ptr->pdr.fregmask = val;
3155 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3157 demand_empty_rest_of_line ();
3160 /* Parse .frame directives. */
3163 ecoff_directive_frame (int ignore ATTRIBUTE_UNUSED)
3167 if (cur_proc_ptr == (proc_t *) NULL)
3169 as_warn (_(".frame outside of .ent"));
3170 demand_empty_rest_of_line ();
3174 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3177 if (*input_line_pointer++ != ','
3178 || get_absolute_expression_and_terminator (&val) != ',')
3180 as_warn (_("bad .frame directive"));
3181 --input_line_pointer;
3182 demand_empty_rest_of_line ();
3186 cur_proc_ptr->pdr.frameoffset = val;
3188 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3190 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to
3191 Sandro. I don't yet know where this value should be stored, if
3192 anywhere. Don't call demand_empty_rest_of_line (). */
3196 /* Parse .mask directives. */
3199 ecoff_directive_mask (int ignore ATTRIBUTE_UNUSED)
3203 if (cur_proc_ptr == (proc_t *) NULL)
3205 as_warn (_(".mask outside of .ent"));
3206 demand_empty_rest_of_line ();
3210 if (get_absolute_expression_and_terminator (&val) != ',')
3212 as_warn (_("bad .mask directive"));
3213 --input_line_pointer;
3214 demand_empty_rest_of_line ();
3218 cur_proc_ptr->pdr.regmask = val;
3219 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3221 demand_empty_rest_of_line ();
3224 /* Parse .loc directives. */
3227 ecoff_directive_loc (int ignore ATTRIBUTE_UNUSED)
3229 lineno_list_t *list;
3232 if (cur_file_ptr == (efdr_t *) NULL)
3234 as_warn (_(".loc before .file"));
3235 demand_empty_rest_of_line ();
3239 if (now_seg != text_section)
3241 as_warn (_(".loc outside of .text"));
3242 demand_empty_rest_of_line ();
3246 /* Skip the file number. */
3248 get_absolute_expression ();
3251 lineno = get_absolute_expression ();
3255 listing_source_line (lineno);
3258 /* If we're building stabs, then output a special label rather than
3259 ECOFF line number info. */
3262 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3263 symbol_new ("L0\001", now_seg,
3264 (valueT) frag_now_fix (),
3266 (bfd_vma) 0, 0, lineno);
3270 list = allocate_lineno_list ();
3272 list->next = (lineno_list_t *) NULL;
3273 list->file = cur_file_ptr;
3274 list->proc = cur_proc_ptr;
3275 list->frag = frag_now;
3276 list->paddr = frag_now_fix ();
3277 list->lineno = lineno;
3279 /* We don't want to merge files which have line numbers. */
3280 cur_file_ptr->fdr.fMerge = 0;
3282 /* A .loc directive will sometimes appear before a .ent directive,
3283 which means that cur_proc_ptr will be NULL here. Arrange to
3285 if (cur_proc_ptr == (proc_t *) NULL)
3289 pl = &noproc_lineno;
3290 while (*pl != (lineno_list_t *) NULL)
3297 *last_lineno_ptr = list;
3298 last_lineno_ptr = &list->next;
3302 /* The MIPS assembler sometimes inserts nop instructions in the
3303 instruction stream. When this happens, we must patch up the .loc
3304 information so that it points to the instruction after the nop. */
3307 ecoff_fix_loc (fragS *old_frag, unsigned long old_frag_offset)
3309 if (last_lineno != NULL
3310 && last_lineno->frag == old_frag
3311 && last_lineno->paddr == old_frag_offset)
3313 last_lineno->frag = frag_now;
3314 last_lineno->paddr = frag_now_fix ();
3318 /* Make sure the @stabs symbol is emitted. */
3321 mark_stabs (int ignore ATTRIBUTE_UNUSED)
3325 /* Add a dummy @stabs symbol. */
3327 (void) add_ecoff_symbol (stabs_symbol, st_Nil, sc_Info,
3329 (bfd_vma) 0, (symint_t) -1,
3330 ECOFF_MARK_STAB (0));
3334 /* Parse .weakext directives. */
3336 /* For TC_MIPS use the version in tc-mips.c. */
3338 ecoff_directive_weakext (int ignore ATTRIBUTE_UNUSED)
3345 c = get_symbol_name (&name);
3346 symbolP = symbol_find_or_make (name);
3347 (void) restore_line_pointer (c);
3351 if (*input_line_pointer == ',')
3353 if (S_IS_DEFINED (symbolP))
3355 as_bad (_("symbol `%s' is already defined"),
3356 S_GET_NAME (symbolP));
3357 ignore_rest_of_line ();
3361 ++input_line_pointer;
3363 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3366 if (exp.X_op != O_symbol)
3368 as_bad (_("bad .weakext directive"));
3369 ignore_rest_of_line ();
3372 symbol_set_value_expression (symbolP, &exp);
3376 S_SET_WEAK (symbolP);
3378 demand_empty_rest_of_line ();
3380 #endif /* not TC_MIPS */
3382 /* Handle .stabs directives. The actual parsing routine is done by a
3383 generic routine. This routine is called via OBJ_PROCESS_STAB.
3384 When this is called, input_line_pointer will be pointing at the
3385 value field of the stab.
3387 .stabs directives have five fields:
3388 "string" a string, encoding the type information.
3389 code a numeric code, defined in <stab.h>
3391 desc a zero or line number
3392 value a numeric value or an address.
3394 If the value is relocatable, we transform this into:
3395 iss points as an index into string space
3396 value value from lookup of the name
3397 st st from lookup of the name
3398 sc sc from lookup of the name
3399 index code|CODE_MASK
3401 If the value is not relocatable, we transform this into:
3402 iss points as an index into string space
3406 index code|CODE_MASK
3408 .stabn directives have four fields (string is null):
3409 code a numeric code, defined in <stab.h>
3411 desc a zero or a line number
3412 value a numeric value or an address. */
3415 ecoff_stab (segT sec ATTRIBUTE_UNUSED,
3422 efdr_t *save_file_ptr = cur_file_ptr;
3429 localsym_t *hold = NULL;
3431 ecoff_debugging_seen = 1;
3433 /* We don't handle .stabd. */
3434 if (what != 's' && what != 'n')
3436 as_bad (_(".stab%c is not supported"), what);
3440 /* A .stabn uses a null name, not an empty string. */
3444 /* We ignore the other field. */
3446 as_warn (_(".stab%c: ignoring non-zero other field"), what);
3448 /* Make sure we have a current file. */
3449 if (cur_file_ptr == (efdr_t *) NULL)
3451 add_file ((const char *) NULL, 0, 1);
3452 save_file_ptr = cur_file_ptr;
3455 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3457 if (stabs_seen == 0)
3460 /* Line number stabs are handled differently, since they have two
3461 values, the line number and the address of the label. We use the
3462 index field (aka desc) to hold the line number, and the value
3463 field to hold the address. The symbol type is st_Label, which
3464 should be different from the other stabs, so that gdb can
3466 if (type == N_SLINE)
3474 listing_source_line ((unsigned int) desc);
3477 dummy_symr.index = desc;
3478 if (dummy_symr.index != desc)
3480 as_warn (_("line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3485 name_end = get_symbol_name (&name);
3486 sym = symbol_find_or_make (name);
3487 (void) restore_line_pointer (name_end);
3498 if (listing && (type == N_SO || type == N_SOL))
3499 listing_source_file (string);
3502 if (ISDIGIT (*input_line_pointer)
3503 || *input_line_pointer == '-'
3504 || *input_line_pointer == '+')
3508 sym = (symbolS *) NULL;
3509 value = get_absolute_expression ();
3512 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3514 as_warn (_("illegal .stab%c directive, bad character"), what);
3525 if (exp.X_op == O_constant)
3528 value = exp.X_add_number;
3531 else if (exp.X_op == O_symbol)
3533 sym = exp.X_add_symbol;
3535 addend = exp.X_add_number;
3539 sym = make_expr_symbol (&exp);
3545 indx = ECOFF_MARK_STAB (type);
3548 /* Don't store the stabs symbol we are creating as the type of the
3549 ECOFF symbol. We want to compute the type of the ECOFF symbol
3551 if (sym != (symbolS *) NULL)
3552 hold = symbol_get_obj (sym)->ecoff_symbol;
3554 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3556 if (sym != (symbolS *) NULL)
3557 symbol_get_obj (sym)->ecoff_symbol = hold;
3559 /* Restore normal file type. */
3560 cur_file_ptr = save_file_ptr;
3563 /* Frob an ECOFF symbol. Small common symbols go into a special
3564 .scommon section rather than bfd_com_section. */
3567 ecoff_frob_symbol (symbolS *sym)
3569 if (S_IS_COMMON (sym)
3570 && S_GET_VALUE (sym) > 0
3571 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3573 static asection scom_section;
3574 static asymbol scom_symbol;
3576 /* We must construct a fake section similar to bfd_com_section
3577 but with the name .scommon. */
3578 if (scom_section.name == NULL)
3580 scom_section = *bfd_com_section_ptr;
3581 scom_section.name = ".scommon";
3582 scom_section.output_section = &scom_section;
3583 scom_section.symbol = &scom_symbol;
3584 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3585 scom_symbol = *bfd_com_section_ptr->symbol;
3586 scom_symbol.name = ".scommon";
3587 scom_symbol.section = &scom_section;
3589 S_SET_SEGMENT (sym, &scom_section);
3592 /* Double check weak symbols. */
3593 if (S_IS_WEAK (sym))
3595 if (S_IS_COMMON (sym))
3596 as_bad (_("symbol `%s' can not be both weak and common"),
3601 /* Add bytes to the symbolic information buffer. */
3604 ecoff_add_bytes (char **buf,
3613 need -= *bufend - bufptr;
3614 if (need < PAGE_SIZE)
3616 want = (*bufend - *buf) + need;
3617 *buf = XRESIZEVEC (char, *buf, want);
3618 *bufend = *buf + want;
3622 /* Adjust the symbolic information buffer to the alignment required
3623 for the ECOFF target debugging information. */
3625 static unsigned long
3626 ecoff_padding_adjust (const struct ecoff_debug_swap *backend,
3629 unsigned long offset,
3632 bfd_size_type align;
3634 align = backend->debug_align;
3635 if ((offset & (align - 1)) != 0)
3639 add = align - (offset & (align - 1));
3640 if ((unsigned long) (*bufend - (*buf + offset)) < add)
3641 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3642 memset (*buf + offset, 0, add);
3644 if (bufptrptr != (char **) NULL)
3645 *bufptrptr = *buf + offset;
3651 /* Build the line number information. */
3653 static unsigned long
3654 ecoff_build_lineno (const struct ecoff_debug_swap *backend,
3657 unsigned long offset,
3662 lineno_list_t *last;
3668 lineno_list_t first;
3669 lineno_list_t *local_first_lineno = first_lineno;
3671 if (linecntptr != (long *) NULL)
3674 bufptr = *buf + offset;
3676 file = (efdr_t *) NULL;
3677 proc = (proc_t *) NULL;
3678 last = (lineno_list_t *) NULL;
3683 /* FIXME? Now that MIPS embedded-PIC is gone, it may be safe to
3684 remove this code. */
3685 /* For some reason the address of the first procedure is ignored
3686 when reading line numbers. This doesn't matter if the address of
3687 the first procedure is 0, but when gcc is generating MIPS
3688 embedded PIC code, it will put strings in the .text section
3689 before the first procedure. We cope by inserting a dummy line if
3690 the address of the first procedure is not 0. Hopefully this
3691 won't screw things up too badly.
3693 Don't do this for ECOFF assembly source line numbers. They work
3694 without this extra attention. */
3695 if (debug_type != DEBUG_ECOFF
3696 && first_proc_ptr != (proc_t *) NULL
3697 && local_first_lineno != (lineno_list_t *) NULL
3698 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3699 + bfd_get_section_vma (stdoutput,
3700 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3703 first.file = local_first_lineno->file;
3704 first.proc = local_first_lineno->proc;
3705 first.frag = &zero_address_frag;
3709 first.next = local_first_lineno;
3710 local_first_lineno = &first;
3713 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3718 /* Get the offset to the memory address of the next line number
3719 (in words). Do this first, so that we can skip ahead to the
3720 next useful line number entry. */
3721 if (l->next == (lineno_list_t *) NULL)
3723 /* We want a count of zero, but it will be decremented
3724 before it is used. */
3727 else if (l->next->frag->fr_address + l->next->paddr
3728 > l->frag->fr_address + l->paddr)
3730 count = ((l->next->frag->fr_address + l->next->paddr
3731 - (l->frag->fr_address + l->paddr))
3736 /* Don't change last, so we still get the right delta. */
3740 if (l->file != file || l->proc != proc)
3742 if (l->proc != proc && proc != (proc_t *) NULL)
3743 proc->pdr.lnHigh = last->lineno;
3744 if (l->file != file && file != (efdr_t *) NULL)
3746 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3747 file->fdr.cline = totcount + count;
3748 if (linecntptr != (long *) NULL)
3749 *linecntptr += totcount + count;
3753 if (l->file != file)
3755 efdr_t *last_file = file;
3758 if (last_file != (efdr_t *) NULL)
3760 = last_file->fdr.ilineBase + last_file->fdr.cline;
3762 file->fdr.ilineBase = 0;
3763 file->fdr.cbLineOffset = c;
3765 if (l->proc != proc)
3768 if (proc != (proc_t *) NULL)
3770 proc->pdr.lnLow = l->lineno;
3771 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3772 proc->pdr.iline = totcount;
3776 last = (lineno_list_t *) NULL;
3781 /* Get the offset to this line number. */
3782 if (last == (lineno_list_t *) NULL)
3785 delta = l->lineno - last->lineno;
3787 /* Put in the offset to this line number. */
3792 /* 1 is added to each count read. */
3794 /* We can only adjust the word count by up to 15 words at a
3806 if (delta >= -7 && delta <= 7)
3808 if (bufptr >= *bufend)
3809 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3810 *bufptr++ = setcount + (delta << 4);
3818 if (*bufend - bufptr < 3)
3819 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3820 *bufptr++ = setcount + (8 << 4);
3821 if (delta < -0x8000)
3826 else if (delta > 0x7fff)
3836 *bufptr++ = set >> 8;
3837 *bufptr++ = set & 0xffff;
3842 /* Finish adjusting the count. */
3845 if (bufptr >= *bufend)
3846 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3847 /* 1 is added to each count read. */
3866 if (proc != (proc_t *) NULL)
3867 proc->pdr.lnHigh = last->lineno;
3868 if (file != (efdr_t *) NULL)
3870 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3871 file->fdr.cline = totcount;
3874 if (linecntptr != (long *) NULL)
3875 *linecntptr += totcount;
3877 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3882 /* Build and swap out the symbols. */
3884 static unsigned long
3885 ecoff_build_symbols (const struct ecoff_debug_swap *backend,
3888 unsigned long offset)
3890 const bfd_size_type external_sym_size = backend->external_sym_size;
3891 void (* const swap_sym_out) (bfd *, const SYMR *, void *)
3892 = backend->swap_sym_out;
3895 vlinks_t *file_link;
3897 sym_out = *buf + offset;
3901 /* The symbols are stored by file. */
3902 for (file_link = file_desc.first;
3903 file_link != (vlinks_t *) NULL;
3904 file_link = file_link->next)
3911 if (file_link->next == (vlinks_t *) NULL)
3912 fil_cnt = file_desc.objects_last_page;
3914 fil_cnt = file_desc.objects_per_page;
3915 fil_ptr = file_link->datum->file;
3916 fil_end = fil_ptr + fil_cnt;
3917 for (; fil_ptr < fil_end; fil_ptr++)
3921 fil_ptr->fdr.isymBase = isym;
3923 for (sym_link = fil_ptr->symbols.first;
3924 sym_link != (vlinks_t *) NULL;
3925 sym_link = sym_link->next)
3928 localsym_t *sym_ptr;
3929 localsym_t *sym_end;
3931 if (sym_link->next == (vlinks_t *) NULL)
3932 sym_cnt = fil_ptr->symbols.objects_last_page;
3934 sym_cnt = fil_ptr->symbols.objects_per_page;
3935 sym_ptr = sym_link->datum->sym;
3936 sym_end = sym_ptr + sym_cnt;
3937 for (; sym_ptr < sym_end; sym_ptr++)
3943 know (sym_ptr->file_ptr == fil_ptr);
3945 /* If there is no associated gas symbol, then this
3946 is a pure debugging symbol. We have already
3947 added the name (if any) to fil_ptr->strings.
3948 Otherwise we must decide whether this is an
3949 external or a local symbol (actually, it may be
3950 both if the local provides additional debugging
3951 information for the external). */
3953 as_sym = sym_ptr->as_sym;
3954 if (as_sym != (symbolS *) NULL)
3958 /* The value of a block start symbol is the
3959 offset from the start of the procedure. For
3960 other symbols we just use the gas value (but
3961 we must offset it by the vma of the section,
3962 just as BFD does, because BFD will not see
3964 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
3965 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
3969 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3970 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3971 if (S_GET_SEGMENT (as_sym)
3972 != S_GET_SEGMENT (begin_sym))
3973 as_warn (_(".begin/.bend in different segments"));
3974 sym_ptr->ecoff_sym.asym.value =
3975 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3978 sym_ptr->ecoff_sym.asym.value =
3979 (S_GET_VALUE (as_sym)
3980 + bfd_get_section_vma (stdoutput,
3981 S_GET_SEGMENT (as_sym))
3984 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
3986 /* Set st_Proc to st_StaticProc for local
3988 if (sym_ptr->ecoff_sym.asym.st == st_Proc
3989 && S_IS_DEFINED (as_sym)
3990 && ! S_IS_EXTERNAL (as_sym)
3991 && ! S_IS_WEAK (as_sym))
3992 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
3994 /* Get the type and storage class based on where
3995 the symbol actually wound up. Traditionally,
3996 N_LBRAC and N_RBRAC are *not* relocated. */
3997 indx = sym_ptr->ecoff_sym.asym.index;
3998 if (sym_ptr->ecoff_sym.asym.st == st_Nil
3999 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4000 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4001 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4002 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4005 const char *segname;
4009 seg = S_GET_SEGMENT (as_sym);
4010 segname = segment_name (seg);
4012 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4013 && (S_IS_EXTERNAL (as_sym)
4014 || S_IS_WEAK (as_sym)
4015 || ! S_IS_DEFINED (as_sym)))
4017 if ((symbol_get_bfdsym (as_sym)->flags
4018 & BSF_FUNCTION) != 0)
4023 else if (seg == text_section)
4028 if (! S_IS_DEFINED (as_sym))
4032 s = symbol_get_obj (as_sym)->ecoff_extern_size;
4034 || s > bfd_get_gp_size (stdoutput))
4039 sym_ptr->ecoff_sym.asym.value = s;
4042 S_SET_SIZE (as_sym, s);
4045 else if (S_IS_COMMON (as_sym))
4047 if (S_GET_VALUE (as_sym) > 0
4048 && (S_GET_VALUE (as_sym)
4049 <= bfd_get_gp_size (stdoutput)))
4054 else if (seg == text_section)
4056 else if (seg == data_section)
4058 else if (strcmp (segname, ".rdata") == 0
4059 || strcmp (segname, ".rodata") == 0)
4061 else if (strcmp (segname, ".sdata") == 0)
4063 else if (seg == bss_section)
4065 else if (strcmp (segname, ".sbss") == 0)
4067 else if (seg == bfd_abs_section_ptr)
4071 /* This must be a user named section.
4072 This is not possible in ECOFF, but it
4077 sym_ptr->ecoff_sym.asym.st = (int) st;
4078 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4081 /* This is just an external symbol if it is
4082 outside a procedure and it has a type.
4083 FIXME: g++ will generate symbols which have
4084 different names in the debugging information
4085 than the actual symbol. Should we handle
4087 if ((S_IS_EXTERNAL (as_sym)
4088 || S_IS_WEAK (as_sym)
4089 || ! S_IS_DEFINED (as_sym))
4090 && sym_ptr->proc_ptr == (proc_t *) NULL
4091 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4092 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4095 /* This is just an external symbol if it is a
4097 if (S_IS_COMMON (as_sym))
4100 /* If an st_end symbol has an associated gas
4101 symbol, then it is a local label created for
4102 a .bend or .end directive. Stabs line
4103 numbers will have \001 in the names. */
4105 && sym_ptr->ecoff_sym.asym.st != st_End
4106 && strchr (sym_ptr->name, '\001') == 0)
4107 sym_ptr->ecoff_sym.asym.iss =
4108 add_string (&fil_ptr->strings,
4114 /* We now know the index of this symbol; fill in
4115 locations that have been waiting for that
4117 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4119 localsym_t *begin_ptr;
4123 begin_ptr = sym_ptr->begin_ptr;
4124 know (begin_ptr->sym_index != -1);
4125 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4126 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4127 sym_ptr->ecoff_sym.asym.iss =
4128 begin_ptr->ecoff_sym.asym.iss;
4130 begin_type = (st_t) begin_ptr->ecoff_sym.asym.st;
4131 if (begin_type == st_File
4132 || begin_type == st_Block)
4134 begin_ptr->ecoff_sym.asym.index =
4135 isym - ifilesym + 1;
4136 (*swap_sym_out) (stdoutput,
4137 &begin_ptr->ecoff_sym.asym,
4140 + (begin_ptr->sym_index
4141 * external_sym_size)));
4145 know (begin_ptr->index_ptr != (aux_t *) NULL);
4146 begin_ptr->index_ptr->data.isym =
4147 isym - ifilesym + 1;
4150 /* The value of the symbol marking the end of a
4151 procedure is the size of the procedure. The
4152 value of the symbol marking the end of a
4153 block is the offset from the start of the
4154 procedure to the block. */
4155 if (begin_type == st_Proc
4156 || begin_type == st_StaticProc)
4158 know (as_sym != (symbolS *) NULL);
4159 know (begin_ptr->as_sym != (symbolS *) NULL);
4160 if (S_GET_SEGMENT (as_sym)
4161 != S_GET_SEGMENT (begin_ptr->as_sym))
4162 as_warn (_(".begin/.bend in different segments"));
4163 sym_ptr->ecoff_sym.asym.value =
4164 (S_GET_VALUE (as_sym)
4165 - S_GET_VALUE (begin_ptr->as_sym));
4167 /* If the size is odd, this is probably a
4168 mips16 function; force it to be even. */
4169 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4170 ++sym_ptr->ecoff_sym.asym.value;
4173 S_SET_SIZE (begin_ptr->as_sym,
4174 sym_ptr->ecoff_sym.asym.value);
4177 else if (begin_type == st_Block
4178 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4182 know (as_sym != (symbolS *) NULL);
4183 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4184 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4185 if (S_GET_SEGMENT (as_sym)
4186 != S_GET_SEGMENT (begin_sym))
4187 as_warn (_(".begin/.bend in different segments"));
4188 sym_ptr->ecoff_sym.asym.value =
4189 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4193 for (f = sym_ptr->forward_ref;
4194 f != (forward_t *) NULL;
4198 f->ifd_ptr->data.isym = fil_ptr->file_index;
4199 f->index_ptr->data.rndx.index = isym - ifilesym;
4204 if ((bfd_size_type)(*bufend - sym_out) < external_sym_size)
4205 sym_out = ecoff_add_bytes (buf, bufend,
4208 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4210 sym_out += external_sym_size;
4212 sym_ptr->sym_index = isym;
4214 if (sym_ptr->proc_ptr != (proc_t *) NULL
4215 && sym_ptr->proc_ptr->sym == sym_ptr)
4216 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4221 /* Record the local symbol index and file number in
4222 case this is an external symbol. Note that this
4223 destroys the asym.index field. */
4224 if (as_sym != (symbolS *) NULL
4225 && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr)
4227 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4228 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4230 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4231 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4233 /* Don't try to merge an FDR which has an
4234 external symbol attached to it. */
4235 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4236 fil_ptr->fdr.fMerge = 0;
4240 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4244 return offset + isym * external_sym_size;
4247 /* Swap out the procedure information. */
4249 static unsigned long
4250 ecoff_build_procs (const struct ecoff_debug_swap *backend,
4253 unsigned long offset)
4255 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4256 void (* const swap_pdr_out) (bfd *, const PDR *, void *)
4257 = backend->swap_pdr_out;
4260 vlinks_t *file_link;
4262 pdr_out = *buf + offset;
4266 /* The procedures are stored by file. */
4267 for (file_link = file_desc.first;
4268 file_link != (vlinks_t *) NULL;
4269 file_link = file_link->next)
4275 if (file_link->next == (vlinks_t *) NULL)
4276 fil_cnt = file_desc.objects_last_page;
4278 fil_cnt = file_desc.objects_per_page;
4279 fil_ptr = file_link->datum->file;
4280 fil_end = fil_ptr + fil_cnt;
4281 for (; fil_ptr < fil_end; fil_ptr++)
4283 vlinks_t *proc_link;
4286 fil_ptr->fdr.ipdFirst = iproc;
4288 for (proc_link = fil_ptr->procs.first;
4289 proc_link != (vlinks_t *) NULL;
4290 proc_link = proc_link->next)
4296 if (proc_link->next == (vlinks_t *) NULL)
4297 prc_cnt = fil_ptr->procs.objects_last_page;
4299 prc_cnt = fil_ptr->procs.objects_per_page;
4300 proc_ptr = proc_link->datum->proc;
4301 proc_end = proc_ptr + prc_cnt;
4302 for (; proc_ptr < proc_end; proc_ptr++)
4307 adr_sym = proc_ptr->sym->as_sym;
4308 adr = (S_GET_VALUE (adr_sym)
4309 + bfd_get_section_vma (stdoutput,
4310 S_GET_SEGMENT (adr_sym)));
4313 /* This code used to force the adr of the very
4314 first fdr to be 0. However, the native tools
4315 don't do that, and I can't remember why it
4316 used to work that way, so I took it out. */
4317 fil_ptr->fdr.adr = adr;
4320 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4321 if ((bfd_size_type)(*bufend - pdr_out) < external_pdr_size)
4322 pdr_out = ecoff_add_bytes (buf, bufend,
4325 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4326 pdr_out += external_pdr_size;
4330 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4334 return offset + iproc * external_pdr_size;
4337 /* Swap out the aux information. */
4339 static unsigned long
4340 ecoff_build_aux (const struct ecoff_debug_swap *backend,
4343 unsigned long offset)
4346 union aux_ext *aux_out;
4348 vlinks_t *file_link;
4350 bigendian = bfd_big_endian (stdoutput);
4352 aux_out = (union aux_ext *) (*buf + offset);
4356 /* The aux entries are stored by file. */
4357 for (file_link = file_desc.first;
4358 file_link != (vlinks_t *) NULL;
4359 file_link = file_link->next)
4365 if (file_link->next == (vlinks_t *) NULL)
4366 fil_cnt = file_desc.objects_last_page;
4368 fil_cnt = file_desc.objects_per_page;
4369 fil_ptr = file_link->datum->file;
4370 fil_end = fil_ptr + fil_cnt;
4371 for (; fil_ptr < fil_end; fil_ptr++)
4375 fil_ptr->fdr.fBigendian = bigendian;
4376 fil_ptr->fdr.iauxBase = iaux;
4377 for (aux_link = fil_ptr->aux_syms.first;
4378 aux_link != (vlinks_t *) NULL;
4379 aux_link = aux_link->next)
4385 if (aux_link->next == (vlinks_t *) NULL)
4386 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4388 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4389 aux_ptr = aux_link->datum->aux;
4390 aux_end = aux_ptr + aux_cnt;
4391 for (; aux_ptr < aux_end; aux_ptr++)
4393 if ((unsigned long) (*bufend - (char *) aux_out)
4394 < sizeof (union aux_ext))
4395 aux_out = ((union aux_ext *)
4396 ecoff_add_bytes (buf, bufend,
4398 sizeof (union aux_ext)));
4399 switch (aux_ptr->type)
4402 (*backend->swap_tir_out) (bigendian,
4407 (*backend->swap_rndx_out) (bigendian,
4408 &aux_ptr->data.rndx,
4412 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4416 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4420 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4424 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4428 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4432 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4441 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4445 return ecoff_padding_adjust (backend, buf, bufend,
4446 offset + iaux * sizeof (union aux_ext),
4450 /* Copy out the strings from a varray_t. This returns the number of
4451 bytes copied, rather than the new offset. */
4453 static unsigned long
4454 ecoff_build_strings (char **buf,
4456 unsigned long offset,
4463 str_out = *buf + offset;
4467 for (str_link = vp->first;
4468 str_link != (vlinks_t *) NULL;
4469 str_link = str_link->next)
4471 unsigned long str_cnt;
4473 if (str_link->next == (vlinks_t *) NULL)
4474 str_cnt = vp->objects_last_page;
4476 str_cnt = vp->objects_per_page;
4478 if ((unsigned long)(*bufend - str_out) < str_cnt)
4479 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4481 memcpy (str_out, str_link->datum->byte, str_cnt);
4489 /* Dump out the local strings. */
4491 static unsigned long
4492 ecoff_build_ss (const struct ecoff_debug_swap *backend,
4495 unsigned long offset)
4498 vlinks_t *file_link;
4502 for (file_link = file_desc.first;
4503 file_link != (vlinks_t *) NULL;
4504 file_link = file_link->next)
4510 if (file_link->next == (vlinks_t *) NULL)
4511 fil_cnt = file_desc.objects_last_page;
4513 fil_cnt = file_desc.objects_per_page;
4514 fil_ptr = file_link->datum->file;
4515 fil_end = fil_ptr + fil_cnt;
4516 for (; fil_ptr < fil_end; fil_ptr++)
4520 fil_ptr->fdr.issBase = iss;
4521 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4523 fil_ptr->fdr.cbSs = ss_cnt;
4528 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4532 /* Swap out the file descriptors. */
4534 static unsigned long
4535 ecoff_build_fdr (const struct ecoff_debug_swap *backend,
4538 unsigned long offset)
4540 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4541 void (* const swap_fdr_out) (bfd *, const FDR *, void *)
4542 = backend->swap_fdr_out;
4545 vlinks_t *file_link;
4549 fdr_out = *buf + offset;
4551 for (file_link = file_desc.first;
4552 file_link != (vlinks_t *) NULL;
4553 file_link = file_link->next)
4559 if (file_link->next == (vlinks_t *) NULL)
4560 fil_cnt = file_desc.objects_last_page;
4562 fil_cnt = file_desc.objects_per_page;
4563 fil_ptr = file_link->datum->file;
4564 fil_end = fil_ptr + fil_cnt;
4565 for (; fil_ptr < fil_end; fil_ptr++)
4567 if ((bfd_size_type)(*bufend - fdr_out) < external_fdr_size)
4568 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4570 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4571 fdr_out += external_fdr_size;
4576 return offset + ifile * external_fdr_size;
4579 /* Set up the external symbols. These are supposed to be handled by
4580 the backend. This routine just gets the right information and
4581 calls a backend function to deal with it. */
4584 ecoff_setup_ext (void)
4588 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4590 if (symbol_get_obj (sym)->ecoff_symbol == NULL)
4593 /* If this is a local symbol, then force the fields to zero. */
4594 if (! S_IS_EXTERNAL (sym)
4595 && ! S_IS_WEAK (sym)
4596 && S_IS_DEFINED (sym))
4598 struct localsym *lsym;
4600 lsym = symbol_get_obj (sym)->ecoff_symbol;
4601 lsym->ecoff_sym.asym.value = 0;
4602 lsym->ecoff_sym.asym.st = (int) st_Nil;
4603 lsym->ecoff_sym.asym.sc = (int) sc_Nil;
4604 lsym->ecoff_sym.asym.index = indexNil;
4607 obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym);
4611 /* Build the ECOFF debugging information. */
4614 ecoff_build_debug (HDRR *hdr,
4616 const struct ecoff_debug_swap *backend)
4618 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4623 efdr_t *hold_file_ptr;
4624 proc_t *hold_proc_ptr;
4628 unsigned long offset;
4630 /* Make sure we have a file. */
4631 if (first_file == (efdr_t *) NULL)
4632 add_file ((const char *) NULL, 0, 1);
4634 /* Handle any top level tags. */
4635 for (ptag = top_tag_head->first_tag;
4636 ptag != (tag_t *) NULL;
4639 if (ptag->forward_ref != (forward_t *) NULL)
4640 add_unknown_tag (ptag);
4642 ptag_next = ptag->same_block;
4643 ptag->hash_ptr->tag_ptr = ptag->same_name;
4647 free_thead (top_tag_head);
4649 /* Look through the symbols. Add debugging information for each
4650 symbol that has not already received it. */
4651 hold_file_ptr = cur_file_ptr;
4652 hold_proc_ptr = cur_proc_ptr;
4653 cur_proc_ptr = (proc_t *) NULL;
4654 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4656 if (symbol_get_obj (sym)->ecoff_symbol != NULL
4657 || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL
4658 || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0)
4661 cur_file_ptr = symbol_get_obj (sym)->ecoff_file;
4662 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4663 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4665 cur_proc_ptr = hold_proc_ptr;
4666 cur_file_ptr = hold_file_ptr;
4668 /* Output an ending symbol for all the files. We have to do this
4669 here for the last file, so we may as well do it for all of the
4672 for (fil_ptr = first_file;
4673 fil_ptr != (efdr_t *) NULL;
4674 fil_ptr = fil_ptr->next_file)
4676 cur_file_ptr = fil_ptr;
4677 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4678 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4680 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4681 if (! end_warning && ! cur_file_ptr->fake)
4683 as_warn (_("missing .end or .bend at end of file"));
4687 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4688 (void) add_ecoff_symbol ((const char *) NULL,
4696 /* Build the symbolic information. */
4698 buf = XNEWVEC (char, PAGE_SIZE);
4699 bufend = buf + PAGE_SIZE;
4701 /* Build the line number information. */
4702 hdr->cbLineOffset = offset;
4703 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4705 hdr->cbLine = offset - hdr->cbLineOffset;
4707 /* We don't use dense numbers at all. */
4709 hdr->cbDnOffset = 0;
4711 /* We can't build the PDR table until we have built the symbols,
4712 because a PDR contains a symbol index. However, we set aside
4713 space at this point. */
4714 hdr->ipdMax = proc_cnt;
4715 hdr->cbPdOffset = offset;
4716 if ((bfd_size_type)(bufend - (buf + offset)) < proc_cnt * external_pdr_size)
4717 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4718 proc_cnt * external_pdr_size);
4719 offset += proc_cnt * external_pdr_size;
4721 /* Build the local symbols. */
4722 hdr->cbSymOffset = offset;
4723 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4724 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4726 /* Building the symbols initializes the symbol index in the PDR's.
4727 Now we can swap out the PDR's. */
4728 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4730 /* We don't use optimization symbols. */
4732 hdr->cbOptOffset = 0;
4734 /* Swap out the auxiliary type information. */
4735 hdr->cbAuxOffset = offset;
4736 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4737 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4739 /* Copy out the local strings. */
4740 hdr->cbSsOffset = offset;
4741 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4742 hdr->issMax = offset - hdr->cbSsOffset;
4744 /* We don't use relative file descriptors. */
4746 hdr->cbRfdOffset = 0;
4748 /* Swap out the file descriptors. */
4749 hdr->cbFdOffset = offset;
4750 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4751 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4753 /* Set up the external symbols, which are handled by the BFD back
4756 hdr->cbSsExtOffset = 0;
4758 hdr->cbExtOffset = 0;
4761 know ((offset & (backend->debug_align - 1)) == 0);
4763 /* FIXME: This value should be determined from the .verstamp directive,
4764 with reasonable defaults in config files. */
4766 hdr->vstamp = 0x030b;
4768 hdr->vstamp = 0x020b;
4775 /* Allocate a cluster of pages. */
4777 #ifndef MALLOC_CHECK
4780 allocate_cluster (unsigned long npages)
4782 page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4786 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4789 memset (value, 0, npages * PAGE_USIZE);
4794 static page_type *cluster_ptr = NULL;
4795 static unsigned long pages_left = 0;
4797 #endif /* MALLOC_CHECK */
4799 /* Allocate one page (which is initialized to 0). */
4802 allocate_page (void)
4804 #ifndef MALLOC_CHECK
4806 if (pages_left == 0)
4808 pages_left = MAX_CLUSTER_PAGES;
4809 cluster_ptr = allocate_cluster (pages_left);
4813 return cluster_ptr++;
4815 #else /* MALLOC_CHECK */
4819 ptr = xmalloc (PAGE_USIZE);
4820 memset (ptr, 0, PAGE_USIZE);
4823 #endif /* MALLOC_CHECK */
4826 /* Allocate scoping information. */
4829 allocate_scope (void)
4832 static scope_t initial_scope;
4834 #ifndef MALLOC_CHECK
4836 ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4837 if (ptr != (scope_t *) NULL)
4838 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free;
4841 int unallocated = alloc_counts[(int) alloc_type_scope].unallocated;
4842 page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page;
4844 if (unallocated == 0)
4846 unallocated = PAGE_SIZE / sizeof (scope_t);
4847 alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page ();
4848 alloc_counts[(int) alloc_type_scope].total_pages++;
4851 ptr = &cur_page->scope[--unallocated];
4852 alloc_counts[(int) alloc_type_scope].unallocated = unallocated;
4857 ptr = XNEW (scope_t);
4861 alloc_counts[(int) alloc_type_scope].total_alloc++;
4862 *ptr = initial_scope;
4866 /* Free scoping information. */
4869 free_scope (scope_t *ptr)
4871 alloc_counts[(int) alloc_type_scope].total_free++;
4873 #ifndef MALLOC_CHECK
4874 ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4875 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr;
4877 free ((void *) ptr);
4881 /* Allocate links for pages in a virtual array. */
4884 allocate_vlinks (void)
4887 static vlinks_t initial_vlinks;
4889 #ifndef MALLOC_CHECK
4891 int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated;
4892 page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page;
4894 if (unallocated == 0)
4896 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4897 alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4898 alloc_counts[(int) alloc_type_vlinks].total_pages++;
4901 ptr = &cur_page->vlinks[--unallocated];
4902 alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated;
4906 ptr = XNEW (vlinks_t);
4910 alloc_counts[(int) alloc_type_vlinks].total_alloc++;
4911 *ptr = initial_vlinks;
4915 /* Allocate string hash buckets. */
4918 allocate_shash (void)
4921 static shash_t initial_shash;
4923 #ifndef MALLOC_CHECK
4925 int unallocated = alloc_counts[(int) alloc_type_shash].unallocated;
4926 page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page;
4928 if (unallocated == 0)
4930 unallocated = PAGE_SIZE / sizeof (shash_t);
4931 alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page ();
4932 alloc_counts[(int) alloc_type_shash].total_pages++;
4935 ptr = &cur_page->shash[--unallocated];
4936 alloc_counts[(int) alloc_type_shash].unallocated = unallocated;
4940 ptr = XNEW (shash_t);
4944 alloc_counts[(int) alloc_type_shash].total_alloc++;
4945 *ptr = initial_shash;
4949 /* Allocate type hash buckets. */
4952 allocate_thash (void)
4955 static thash_t initial_thash;
4957 #ifndef MALLOC_CHECK
4959 int unallocated = alloc_counts[(int) alloc_type_thash].unallocated;
4960 page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page;
4962 if (unallocated == 0)
4964 unallocated = PAGE_SIZE / sizeof (thash_t);
4965 alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page ();
4966 alloc_counts[(int) alloc_type_thash].total_pages++;
4969 ptr = &cur_page->thash[--unallocated];
4970 alloc_counts[(int) alloc_type_thash].unallocated = unallocated;
4974 ptr = XNEW (thash_t);
4978 alloc_counts[(int) alloc_type_thash].total_alloc++;
4979 *ptr = initial_thash;
4983 /* Allocate structure, union, or enum tag information. */
4989 static tag_t initial_tag;
4991 #ifndef MALLOC_CHECK
4993 ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
4994 if (ptr != (tag_t *) NULL)
4995 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free;
4998 int unallocated = alloc_counts[(int) alloc_type_tag].unallocated;
4999 page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page;
5001 if (unallocated == 0)
5003 unallocated = PAGE_SIZE / sizeof (tag_t);
5004 alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page ();
5005 alloc_counts[(int) alloc_type_tag].total_pages++;
5008 ptr = &cur_page->tag[--unallocated];
5009 alloc_counts[(int) alloc_type_tag].unallocated = unallocated;
5018 alloc_counts[(int) alloc_type_tag].total_alloc++;
5023 /* Free scoping information. */
5026 free_tag (tag_t *ptr)
5028 alloc_counts[(int) alloc_type_tag].total_free++;
5030 #ifndef MALLOC_CHECK
5031 ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5032 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr;
5038 /* Allocate forward reference to a yet unknown tag. */
5041 allocate_forward (void)
5044 static forward_t initial_forward;
5046 #ifndef MALLOC_CHECK
5048 int unallocated = alloc_counts[(int) alloc_type_forward].unallocated;
5049 page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page;
5051 if (unallocated == 0)
5053 unallocated = PAGE_SIZE / sizeof (forward_t);
5054 alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page ();
5055 alloc_counts[(int) alloc_type_forward].total_pages++;
5058 ptr = &cur_page->forward[--unallocated];
5059 alloc_counts[(int) alloc_type_forward].unallocated = unallocated;
5063 ptr = XNEW (forward_t);
5067 alloc_counts[(int) alloc_type_forward].total_alloc++;
5068 *ptr = initial_forward;
5072 /* Allocate head of type hash list. */
5075 allocate_thead (void)
5078 static thead_t initial_thead;
5080 #ifndef MALLOC_CHECK
5082 ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5083 if (ptr != (thead_t *) NULL)
5084 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free;
5087 int unallocated = alloc_counts[(int) alloc_type_thead].unallocated;
5088 page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page;
5090 if (unallocated == 0)
5092 unallocated = PAGE_SIZE / sizeof (thead_t);
5093 alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page ();
5094 alloc_counts[(int) alloc_type_thead].total_pages++;
5097 ptr = &cur_page->thead[--unallocated];
5098 alloc_counts[(int) alloc_type_thead].unallocated = unallocated;
5103 ptr = XNEW (thead_t);
5107 alloc_counts[(int) alloc_type_thead].total_alloc++;
5108 *ptr = initial_thead;
5112 /* Free scoping information. */
5115 free_thead (thead_t *ptr)
5117 alloc_counts[(int) alloc_type_thead].total_free++;
5119 #ifndef MALLOC_CHECK
5120 ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5121 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr;
5127 static lineno_list_t *
5128 allocate_lineno_list (void)
5131 static lineno_list_t initial_lineno_list;
5133 #ifndef MALLOC_CHECK
5135 int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated;
5136 page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page;
5138 if (unallocated == 0)
5140 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5141 alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page ();
5142 alloc_counts[(int) alloc_type_lineno].total_pages++;
5145 ptr = &cur_page->lineno[--unallocated];
5146 alloc_counts[(int) alloc_type_lineno].unallocated = unallocated;
5150 ptr = XNEW (lineno_list_t);
5154 alloc_counts[(int) alloc_type_lineno].total_alloc++;
5155 *ptr = initial_lineno_list;
5160 ecoff_set_gp_prolog_size (int sz)
5162 if (cur_proc_ptr == 0)
5165 cur_proc_ptr->pdr.gp_prologue = sz;
5166 if (cur_proc_ptr->pdr.gp_prologue != sz)
5168 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5169 cur_proc_ptr->pdr.gp_prologue = 0;
5172 cur_proc_ptr->pdr.gp_used = 1;
5176 ecoff_no_current_file (void)
5178 return cur_file_ptr == (efdr_t *) NULL;
5182 ecoff_generate_asm_lineno (void)
5184 unsigned int lineno;
5185 const char *filename;
5186 lineno_list_t *list;
5188 filename = as_where (&lineno);
5190 if (current_stabs_filename == (char *) NULL
5191 || filename_cmp (current_stabs_filename, filename))
5192 add_file (filename, 0, 1);
5194 list = allocate_lineno_list ();
5196 list->next = (lineno_list_t *) NULL;
5197 list->file = cur_file_ptr;
5198 list->proc = cur_proc_ptr;
5199 list->frag = frag_now;
5200 list->paddr = frag_now_fix ();
5201 list->lineno = lineno;
5203 /* We don't want to merge files which have line numbers. */
5204 cur_file_ptr->fdr.fMerge = 0;
5206 /* A .loc directive will sometimes appear before a .ent directive,
5207 which means that cur_proc_ptr will be NULL here. Arrange to
5209 if (cur_proc_ptr == (proc_t *) NULL)
5213 pl = &noproc_lineno;
5214 while (*pl != (lineno_list_t *) NULL)
5221 *last_lineno_ptr = list;
5222 last_lineno_ptr = &list->next;
5229 ecoff_generate_asm_lineno (void)
5233 #endif /* ECOFF_DEBUGGING */