1 /* Read a symbol table in ECOFF format (Third-Eye).
3 Copyright (C) 1986-2019 Free Software Foundation, Inc.
5 Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
6 CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 /* This module provides the function mdebug_build_psymtabs. It reads
25 ECOFF debugging information into partial symbol tables. The
26 debugging information is read from two structures. A struct
27 ecoff_debug_swap includes the sizes of each ECOFF structure and
28 swapping routines; these are fixed for a particular target. A
29 struct ecoff_debug_info points to the debugging information for a
30 particular object file.
32 ECOFF symbol tables are mostly written in the byte order of the
33 target machine. However, one section of the table (the auxiliary
34 symbol information) is written in the host byte order. There is a
35 bit in the other symbol info which describes which host byte order
36 was used. ECOFF thereby takes the trophy from Intel `b.out' for
37 the most brain-dead adaptation of a file format to byte order.
39 This module can read all four of the known byte-order combinations,
40 on any type of host. */
46 #include "filenames.h"
48 #include "gdb_obstack.h"
49 #include "buildsym-legacy.h"
50 #include "stabsread.h"
51 #include "complaints.h"
53 #include "gdb-demangle.h"
55 #include "dictionary.h"
56 #include "mdebugread.h"
63 #include "coff/ecoff.h" /* COFF-like aspects of ecoff files. */
65 #include "libaout.h" /* Private BFD a.out information. */
66 #include "aout/aout64.h"
67 #include "aout/stab_gnu.h" /* STABS information. */
69 #include "expression.h"
73 /* Provide a way to test if we have both ECOFF and ELF symbol tables.
74 We use this define in order to know whether we should override a
75 symbol's ECOFF section with its ELF section. This is necessary in
76 case the symbol's ELF section could not be represented in ECOFF. */
77 #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
78 && bfd_get_section_by_name (bfd, ".mdebug") != NULL)
80 /* The objfile we are currently reading. */
82 static struct objfile
*mdebugread_objfile
;
86 /* We put a pointer to this structure in the read_symtab_private field
91 /* Index of the FDR that this psymtab represents. */
93 /* The BFD that the psymtab was created from. */
95 const struct ecoff_debug_swap
*debug_swap
;
96 struct ecoff_debug_info
*debug_info
;
97 struct mdebug_pending
**pending_list
;
98 /* Pointer to external symbols for this file. */
100 /* Size of extern_tab. */
102 enum language pst_language
;
105 #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
106 #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
107 #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
108 #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
109 #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
110 #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)
112 #define SC_IS_TEXT(sc) ((sc) == scText \
113 || (sc) == scRConst \
116 #define SC_IS_DATA(sc) ((sc) == scData \
121 #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
122 #define SC_IS_BSS(sc) ((sc) == scBss)
123 #define SC_IS_SBSS(sc) ((sc) == scSBss)
124 #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)
126 /* Various complaints about symbol reading that don't abort the process. */
128 index_complaint (const char *arg1
)
130 complaint (_("bad aux index at symbol %s"), arg1
);
134 unknown_ext_complaint (const char *arg1
)
136 complaint (_("unknown external symbol %s"), arg1
);
140 basic_type_complaint (int arg1
, const char *arg2
)
142 complaint (_("cannot map ECOFF basic type 0x%x for %s"),
147 bad_tag_guess_complaint (const char *arg1
)
149 complaint (_("guessed tag type of %s incorrectly"), arg1
);
153 bad_rfd_entry_complaint (const char *arg1
, int arg2
, int arg3
)
155 complaint (_("bad rfd entry for %s: file %d, index %d"),
160 unexpected_type_code_complaint (const char *arg1
)
162 complaint (_("unexpected type code for %s"), arg1
);
165 /* Macros and extra defs. */
167 /* Puns: hard to find whether -g was used and how. */
169 #define MIN_GLEVEL GLEVEL_0
170 #define compare_glevel(a,b) \
171 (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
172 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
174 /* Things that really are local to this module. */
176 /* Remember what we deduced to be the source language of this psymtab. */
178 static enum language psymtab_language
= language_unknown
;
184 /* How to parse debugging information for CUR_BFD. */
186 static const struct ecoff_debug_swap
*debug_swap
;
188 /* Pointers to debugging information for CUR_BFD. */
190 static struct ecoff_debug_info
*debug_info
;
192 /* Pointer to current file descriptor record, and its index. */
197 /* Index of current symbol. */
201 /* Note how much "debuggable" this image is. We would like
202 to see at least one FDR with full symbols. */
204 static int max_gdbinfo
;
205 static int max_glevel
;
207 /* When examining .o files, report on undefined symbols. */
209 static int n_undef_symbols
, n_undef_labels
, n_undef_vars
, n_undef_procs
;
211 /* Pseudo symbol to use when putting stabs into the symbol table. */
213 static char stabs_symbol
[] = STABS_SYMBOL
;
215 /* Nonzero if we have seen ecoff debugging info for a file. */
217 static int found_ecoff_debugging_info
;
219 /* Forward declarations. */
221 static int upgrade_type (int, struct type
**, int, union aux_ext
*,
224 static void parse_partial_symbols (minimal_symbol_reader
&,
227 static int has_opaque_xref (FDR
*, SYMR
*);
229 static int cross_ref (int, union aux_ext
*, struct type
**, enum type_code
,
230 const char **, int, const char *);
232 static struct symbol
*new_symbol (const char *);
234 static struct type
*new_type (char *);
236 enum block_type
{ FUNCTION_BLOCK
, NON_FUNCTION_BLOCK
};
238 static struct block
*new_block (enum block_type
, enum language
);
240 static struct compunit_symtab
*new_symtab (const char *, int, struct objfile
*);
242 static struct linetable
*new_linetable (int);
244 static struct blockvector
*new_bvect (int);
246 static struct type
*parse_type (int, union aux_ext
*, unsigned int, int *,
249 static struct symbol
*mylookup_symbol (const char *, const struct block
*,
250 domain_enum
, enum address_class
);
252 static void sort_blocks (struct symtab
*);
254 static struct partial_symtab
*new_psymtab (const char *, struct objfile
*);
256 static void psymtab_to_symtab_1 (struct objfile
*objfile
,
257 struct partial_symtab
*, const char *);
259 static void add_block (struct block
*, struct symtab
*);
261 static void add_symbol (struct symbol
*, struct symtab
*, struct block
*);
263 static int add_line (struct linetable
*, int, CORE_ADDR
, int);
265 static struct linetable
*shrink_linetable (struct linetable
*);
267 static void handle_psymbol_enumerators (struct objfile
*, FDR
*, int,
270 static const char *mdebug_next_symbol_text (struct objfile
*);
272 /* Exported procedure: Builds a symtab from the partial symtab SELF.
273 Restores the environment in effect when SELF was created, delegates
274 most of the work to an ancillary procedure, and sorts
275 and reorders the symtab list at the end. SELF is not NULL. */
278 mdebug_read_symtab (struct partial_symtab
*self
, struct objfile
*objfile
)
282 printf_filtered (_("Reading in symbols for %s..."), self
->filename
);
283 gdb_flush (gdb_stdout
);
286 next_symbol_text_func
= mdebug_next_symbol_text
;
288 psymtab_to_symtab_1 (objfile
, self
, self
->filename
);
290 /* Match with global symbols. This only needs to be done once,
291 after all of the symtabs and dependencies have been read in. */
292 scan_file_globals (objfile
);
295 printf_filtered (_("done.\n"));
298 /* File-level interface functions. */
300 /* Find a file descriptor given its index RF relative to a file CF. */
303 get_rfd (int cf
, int rf
)
309 fdrs
= debug_info
->fdr
;
311 /* Object files do not have the RFD table, all refs are absolute. */
314 (*debug_swap
->swap_rfd_in
) (cur_bfd
,
315 ((char *) debug_info
->external_rfd
317 * debug_swap
->external_rfd_size
)),
322 /* Return a safer print NAME for a file descriptor. */
328 return "<stripped file>";
331 return debug_info
->ss
+ f
->issBase
+ f
->rss
;
335 /* Read in and parse the symtab of the file OBJFILE. Symbols from
336 different sections are relocated via the SECTION_OFFSETS. */
339 mdebug_build_psymtabs (minimal_symbol_reader
&reader
,
340 struct objfile
*objfile
,
341 const struct ecoff_debug_swap
*swap
,
342 struct ecoff_debug_info
*info
)
344 cur_bfd
= objfile
->obfd
;
348 stabsread_new_init ();
349 free_header_files ();
350 init_header_files ();
352 /* Make sure all the FDR information is swapped in. */
353 if (info
->fdr
== NULL
)
359 info
->fdr
= (FDR
*) XOBNEWVEC (&objfile
->objfile_obstack
, FDR
,
360 info
->symbolic_header
.ifdMax
);
361 fdr_src
= (char *) info
->external_fdr
;
363 + info
->symbolic_header
.ifdMax
* swap
->external_fdr_size
);
365 for (; fdr_src
< fdr_end
; fdr_src
+= swap
->external_fdr_size
, fdr_ptr
++)
366 (*swap
->swap_fdr_in
) (objfile
->obfd
, fdr_src
, fdr_ptr
);
369 parse_partial_symbols (reader
, objfile
);
372 /* Check to make sure file was compiled with -g. If not, warn the
373 user of this limitation. */
374 if (compare_glevel (max_glevel
, GLEVEL_2
) < 0)
376 if (max_gdbinfo
== 0)
377 printf_unfiltered (_("\n%s not compiled with -g, "
378 "debugging support is limited.\n"),
380 printf_unfiltered (_("You should compile with -g2 or "
381 "-g3 for best debugging support.\n"));
386 /* Local utilities */
388 /* Map of FDR indexes to partial symtabs. */
392 struct partial_symtab
*pst
; /* the psymtab proper */
393 long n_globals
; /* exported globals (external symbols) */
394 long globals_offset
; /* cumulative */
398 /* Utility stack, used to nest procedures and blocks properly.
399 It is a doubly linked list, to avoid too many alloc/free.
400 Since we might need it quite a few times it is NOT deallocated
403 static struct parse_stack
405 struct parse_stack
*next
, *prev
;
406 struct symtab
*cur_st
; /* Current symtab. */
407 struct block
*cur_block
; /* Block in it. */
409 /* What are we parsing. stFile, or stBlock are for files and
410 blocks. stProc or stStaticProc means we have seen the start of a
411 procedure, but not the start of the block within in. When we see
412 the start of that block, we change it to stNil, without pushing a
413 new block, i.e. stNil means both a procedure and a block. */
417 struct type
*cur_type
; /* Type we parse fields for. */
418 int cur_field
; /* Field number in cur_type. */
419 CORE_ADDR procadr
; /* Start addres of this procedure. */
420 int numargs
; /* Its argument count. */
423 *top_stack
; /* Top stack ptr */
426 /* Enter a new lexical context. */
429 push_parse_stack (void)
431 struct parse_stack
*newobj
;
433 /* Reuse frames if possible. */
434 if (top_stack
&& top_stack
->prev
)
435 newobj
= top_stack
->prev
;
437 newobj
= XCNEW (struct parse_stack
);
438 /* Initialize new frame with previous content. */
441 struct parse_stack
*prev
= newobj
->prev
;
443 *newobj
= *top_stack
;
444 top_stack
->prev
= newobj
;
446 newobj
->next
= top_stack
;
451 /* Exit a lexical context. */
454 pop_parse_stack (void)
459 top_stack
= top_stack
->next
;
463 /* Cross-references might be to things we haven't looked at
464 yet, e.g. type references. To avoid too many type
465 duplications we keep a quick fixup table, an array
466 of lists of references indexed by file descriptor. */
468 struct mdebug_pending
470 struct mdebug_pending
*next
; /* link */
471 char *s
; /* the unswapped symbol */
472 struct type
*t
; /* its partial type descriptor */
476 /* The pending information is kept for an entire object file. We
477 allocate the pending information table when we create the partial
478 symbols, and we store a pointer to the single table in each
481 static struct mdebug_pending
**pending_list
;
483 /* Check whether we already saw symbol SH in file FH. */
485 static struct mdebug_pending
*
486 is_pending_symbol (FDR
*fh
, char *sh
)
488 int f_idx
= fh
- debug_info
->fdr
;
489 struct mdebug_pending
*p
;
491 /* Linear search is ok, list is typically no more than 10 deep. */
492 for (p
= pending_list
[f_idx
]; p
; p
= p
->next
)
498 /* Add a new symbol SH of type T. */
501 add_pending (FDR
*fh
, char *sh
, struct type
*t
)
503 int f_idx
= fh
- debug_info
->fdr
;
504 struct mdebug_pending
*p
= is_pending_symbol (fh
, sh
);
506 /* Make sure we do not make duplicates. */
509 p
= XOBNEW (&mdebugread_objfile
->objfile_obstack
, mdebug_pending
);
512 p
->next
= pending_list
[f_idx
];
513 pending_list
[f_idx
] = p
;
518 /* Parsing Routines proper. */
521 reg_value_complaint (int regnum
, int num_regs
, const char *sym
)
523 complaint (_("bad register number %d (max %d) in symbol %s"),
524 regnum
, num_regs
- 1, sym
);
527 /* Parse a single symbol. Mostly just make up a GDB symbol for it.
528 For blocks, procedures and types we open a new lexical context.
529 This is basically just a big switch on the symbol's type. Argument
530 AX is the base pointer of aux symbols for this file (fh->iauxBase).
531 EXT_SH points to the unswapped symbol, which is needed for struct,
532 union, etc., types; it is NULL for an EXTR. BIGEND says whether
533 aux symbols are big-endian or little-endian. Return count of
534 SYMR's handled (normally one). */
537 mdebug_reg_to_regnum (struct symbol
*sym
, struct gdbarch
*gdbarch
)
539 int regno
= gdbarch_ecoff_reg_to_regnum (gdbarch
, SYMBOL_VALUE (sym
));
541 if (regno
< 0 || regno
>= gdbarch_num_cooked_regs (gdbarch
))
543 reg_value_complaint (regno
, gdbarch_num_cooked_regs (gdbarch
),
544 SYMBOL_PRINT_NAME (sym
));
546 regno
= gdbarch_sp_regnum (gdbarch
); /* Known safe, though useless. */
552 static const struct symbol_register_ops mdebug_register_funcs
= {
556 /* The "aclass" indices for computed symbols. */
558 static int mdebug_register_index
;
559 static int mdebug_regparm_index
;
561 /* Common code for symbols describing data. */
564 add_data_symbol (SYMR
*sh
, union aux_ext
*ax
, int bigend
,
565 struct symbol
*s
, int aclass_index
, struct block
*b
,
566 struct objfile
*objfile
, const char *name
)
568 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
569 SYMBOL_ACLASS_INDEX (s
) = aclass_index
;
570 add_symbol (s
, top_stack
->cur_st
, b
);
572 /* Type could be missing if file is compiled without debugging info. */
573 if (SC_IS_UNDEF (sh
->sc
)
574 || sh
->sc
== scNil
|| sh
->index
== indexNil
)
575 SYMBOL_TYPE (s
) = objfile_type (objfile
)->nodebug_data_symbol
;
577 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
578 /* Value of a data symbol is its memory address. */
582 parse_symbol (SYMR
*sh
, union aux_ext
*ax
, char *ext_sh
, int bigend
,
583 struct section_offsets
*section_offsets
, struct objfile
*objfile
)
585 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
586 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
587 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
591 struct mdebug_pending
*pend
;
595 long svalue
= sh
->value
;
599 name
= debug_info
->ssext
+ sh
->iss
;
601 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
->iss
;
607 /* Do not relocate relative values.
608 The value of a stEnd symbol is the displacement from the
609 corresponding start symbol value.
610 The value of a stBlock symbol is the displacement from the
611 procedure address. */
612 if (sh
->st
!= stEnd
&& sh
->st
!= stBlock
)
613 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT (objfile
));
620 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_DATA (objfile
));
624 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_BSS (objfile
));
633 case stGlobal
: /* External symbol, goes into global block. */
634 b
= BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack
->cur_st
),
636 s
= new_symbol (name
);
637 SET_SYMBOL_VALUE_ADDRESS (s
, (CORE_ADDR
) sh
->value
);
638 add_data_symbol (sh
, ax
, bigend
, s
, LOC_STATIC
, b
, objfile
, name
);
641 case stStatic
: /* Static data, goes into current block. */
642 b
= top_stack
->cur_block
;
643 s
= new_symbol (name
);
644 if (SC_IS_COMMON (sh
->sc
))
646 /* It is a FORTRAN common block. At least for SGI Fortran the
647 address is not in the symbol; we need to fix it later in
648 scan_file_globals. */
649 int bucket
= hashname (SYMBOL_LINKAGE_NAME (s
));
650 SYMBOL_VALUE_CHAIN (s
) = global_sym_chain
[bucket
];
651 global_sym_chain
[bucket
] = s
;
654 SET_SYMBOL_VALUE_ADDRESS (s
, (CORE_ADDR
) sh
->value
);
655 add_data_symbol (sh
, ax
, bigend
, s
, LOC_STATIC
, b
, objfile
, name
);
658 case stLocal
: /* Local variable, goes into current block. */
659 b
= top_stack
->cur_block
;
660 s
= new_symbol (name
);
661 SYMBOL_VALUE (s
) = svalue
;
662 if (sh
->sc
== scRegister
)
663 add_data_symbol (sh
, ax
, bigend
, s
, mdebug_register_index
,
666 add_data_symbol (sh
, ax
, bigend
, s
, LOC_LOCAL
,
670 case stParam
: /* Arg to procedure, goes into current
673 found_ecoff_debugging_info
= 1;
674 top_stack
->numargs
++;
676 /* Special GNU C++ name. */
677 if (is_cplus_marker (name
[0]) && name
[1] == 't' && name
[2] == 0)
678 name
= "this"; /* FIXME, not alloc'd in obstack. */
679 s
= new_symbol (name
);
681 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
682 SYMBOL_IS_ARGUMENT (s
) = 1;
686 /* Pass by value in register. */
687 SYMBOL_ACLASS_INDEX (s
) = mdebug_register_index
;
690 /* Pass by reference on stack. */
691 SYMBOL_ACLASS_INDEX (s
) = LOC_REF_ARG
;
694 /* Pass by reference in register. */
695 SYMBOL_ACLASS_INDEX (s
) = mdebug_regparm_index
;
698 /* Pass by value on stack. */
699 SYMBOL_ACLASS_INDEX (s
) = LOC_ARG
;
702 SYMBOL_VALUE (s
) = svalue
;
703 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
704 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
707 case stLabel
: /* label, goes into current block. */
708 s
= new_symbol (name
);
709 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
; /* So that it can be used */
710 SYMBOL_ACLASS_INDEX (s
) = LOC_LABEL
; /* but not misused. */
711 SET_SYMBOL_VALUE_ADDRESS (s
, (CORE_ADDR
) sh
->value
);
712 SYMBOL_TYPE (s
) = objfile_type (objfile
)->builtin_int
;
713 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
716 case stProc
: /* Procedure, usually goes into global block. */
717 case stStaticProc
: /* Static procedure, goes into current block. */
718 /* For stProc symbol records, we need to check the storage class
719 as well, as only (stProc, scText) entries represent "real"
720 procedures - See the Compaq document titled "Object File /
721 Symbol Table Format Specification" for more information.
722 If the storage class is not scText, we discard the whole block
723 of symbol records for this stProc. */
724 if (sh
->st
== stProc
&& sh
->sc
!= scText
)
726 char *ext_tsym
= ext_sh
;
727 int keep_counting
= 1;
730 while (keep_counting
)
732 ext_tsym
+= external_sym_size
;
733 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
743 complaint (_("unknown symbol type 0x%x"), sh
->st
);
749 s
= new_symbol (name
);
750 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
751 SYMBOL_ACLASS_INDEX (s
) = LOC_BLOCK
;
752 /* Type of the return value. */
753 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
754 t
= objfile_type (objfile
)->builtin_int
;
757 t
= parse_type (cur_fd
, ax
, sh
->index
+ 1, 0, bigend
, name
);
758 if (strcmp (name
, "malloc") == 0
759 && TYPE_CODE (t
) == TYPE_CODE_VOID
)
761 /* I don't know why, but, at least under Alpha GNU/Linux,
762 when linking against a malloc without debugging
763 symbols, its read as a function returning void---this
764 is bad because it means we cannot call functions with
765 string arguments interactively; i.e., "call
766 printf("howdy\n")" would fail with the error message
767 "program has no memory available". To avoid this, we
768 patch up the type and make it void*
769 instead. (davidm@azstarnet.com). */
770 t
= make_pointer_type (t
, NULL
);
773 b
= top_stack
->cur_block
;
774 if (sh
->st
== stProc
)
776 const struct blockvector
*bv
777 = SYMTAB_BLOCKVECTOR (top_stack
->cur_st
);
779 /* The next test should normally be true, but provides a
780 hook for nested functions (which we don't want to make
782 if (b
== BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
))
783 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
784 /* Irix 5 sometimes has duplicate names for the same
785 function. We want to add such names up at the global
786 level, not as a nested function. */
787 else if (sh
->value
== top_stack
->procadr
)
788 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
790 add_symbol (s
, top_stack
->cur_st
, b
);
792 /* Make a type for the procedure itself. */
793 SYMBOL_TYPE (s
) = lookup_function_type (t
);
795 /* All functions in C++ have prototypes. For C we don't have enough
796 information in the debug info. */
797 if (SYMBOL_LANGUAGE (s
) == language_cplus
)
798 TYPE_PROTOTYPED (SYMBOL_TYPE (s
)) = 1;
800 /* Create and enter a new lexical context. */
801 b
= new_block (FUNCTION_BLOCK
, SYMBOL_LANGUAGE (s
));
802 SYMBOL_BLOCK_VALUE (s
) = b
;
803 BLOCK_FUNCTION (b
) = s
;
804 BLOCK_START (b
) = BLOCK_END (b
) = sh
->value
;
805 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
806 add_block (b
, top_stack
->cur_st
);
808 /* Not if we only have partial info. */
809 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
813 top_stack
->cur_block
= b
;
814 top_stack
->blocktype
= sh
->st
;
815 top_stack
->cur_type
= SYMBOL_TYPE (s
);
816 top_stack
->cur_field
= -1;
817 top_stack
->procadr
= sh
->value
;
818 top_stack
->numargs
= 0;
821 /* Beginning of code for structure, union, and enum definitions.
822 They all share a common set of local variables, defined here. */
824 enum type_code type_code
;
830 case stStruct
: /* Start a block defining a struct type. */
831 type_code
= TYPE_CODE_STRUCT
;
832 goto structured_common
;
834 case stUnion
: /* Start a block defining a union type. */
835 type_code
= TYPE_CODE_UNION
;
836 goto structured_common
;
838 case stEnum
: /* Start a block defining an enum type. */
839 type_code
= TYPE_CODE_ENUM
;
840 goto structured_common
;
842 case stBlock
: /* Either a lexical block, or some type. */
843 if (sh
->sc
!= scInfo
&& !SC_IS_COMMON (sh
->sc
))
844 goto case_stBlock_code
; /* Lexical block */
846 type_code
= TYPE_CODE_UNDEF
; /* We have a type. */
848 /* Common code for handling struct, union, enum, and/or as-yet-
849 unknown-type blocks of info about structured data. `type_code'
850 has been set to the proper TYPE_CODE, if we know it. */
852 found_ecoff_debugging_info
= 1;
854 top_stack
->blocktype
= stBlock
;
856 /* First count the number of fields and the highest value. */
859 for (ext_tsym
= ext_sh
+ external_sym_size
;
861 ext_tsym
+= external_sym_size
)
865 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
870 /* C++ encodes class types as structures where there the
871 methods are encoded as stProc. The scope of stProc
872 symbols also ends with stEnd, thus creating a risk of
873 taking the wrong stEnd symbol record as the end of
874 the current struct, which would cause GDB to undercount
875 the real number of fields in this struct. To make sure
876 we really reached the right stEnd symbol record, we
877 check the associated name, and match it against the
878 struct name. Since method names are mangled while
879 the class name is not, there is no risk of having a
880 method whose name is identical to the class name
881 (in particular constructor method names are different
882 from the class name). There is therefore no risk that
883 this check stops the count on the StEnd of a method.
885 Also, assume that we're really at the end when tsym.iss
887 if (tsym
.iss
== issNull
888 || strcmp (debug_info
->ss
+ cur_fdr
->issBase
+ tsym
.iss
,
894 if (nfields
== 0 && type_code
== TYPE_CODE_UNDEF
)
896 /* If the type of the member is Nil (or Void),
897 without qualifiers, assume the tag is an
899 Alpha cc -migrate enums are recognized by a zero
900 index and a zero symbol value.
901 DU 4.0 cc enums are recognized by a member type of
902 btEnum without qualifiers and a zero symbol value. */
903 if (tsym
.index
== indexNil
904 || (tsym
.index
== 0 && sh
->value
== 0))
905 type_code
= TYPE_CODE_ENUM
;
908 (*debug_swap
->swap_tir_in
) (bigend
,
909 &ax
[tsym
.index
].a_ti
,
911 if ((tir
.bt
== btNil
|| tir
.bt
== btVoid
912 || (tir
.bt
== btEnum
&& sh
->value
== 0))
914 type_code
= TYPE_CODE_ENUM
;
918 if (tsym
.value
> max_value
)
919 max_value
= tsym
.value
;
928 /* This is a no-op; is it trying to tell us something
929 we should be checking? */
930 if (tsym
.sc
== scVariant
); /*UNIMPLEMENTED */
934 /* This is something like a struct within a
935 struct. Skip over the fields of the inner
936 struct. The -1 is because the for loop will
937 increment ext_tsym. */
938 ext_tsym
= ((char *) debug_info
->external_sym
939 + ((cur_fdr
->isymBase
+ tsym
.index
- 1)
940 * external_sym_size
));
946 /* mips cc puts out a typedef for struct x if it is not yet
947 defined when it encounters
948 struct y { struct x *xp; };
953 /* Irix5 cc puts out a stIndirect for struct x if it is not
954 yet defined when it encounters
955 struct y { struct x *xp; };
960 complaint (_("declaration block contains "
961 "unhandled symbol type %d"),
967 /* In an stBlock, there is no way to distinguish structs,
968 unions, and enums at this point. This is a bug in the
969 original design (that has been fixed with the recent
970 addition of the stStruct, stUnion, and stEnum symbol
971 types.) The way you can tell is if/when you see a variable
972 or field of that type. In that case the variable's type
973 (in the AUX table) says if the type is struct, union, or
974 enum, and points back to the stBlock here. So you can
975 patch the tag kind up later - but only if there actually is
976 a variable or field of that type.
978 So until we know for sure, we will guess at this point.
980 If the first member has index==indexNil or a void type,
981 assume we have an enumeration.
982 Otherwise, if there is more than one member, and all
983 the members have offset 0, assume we have a union.
984 Otherwise, assume we have a struct.
986 The heuristic could guess wrong in the case of of an
987 enumeration with no members or a union with one (or zero)
988 members, or when all except the last field of a struct have
989 width zero. These are uncommon and/or illegal situations,
990 and in any case guessing wrong probably doesn't matter
993 But if we later do find out we were wrong, we fixup the tag
994 kind. Members of an enumeration must be handled
995 differently from struct/union fields, and that is harder to
996 patch up, but luckily we shouldn't need to. (If there are
997 any enumeration members, we can tell for sure it's an enum
1000 if (type_code
== TYPE_CODE_UNDEF
)
1002 if (nfields
> 1 && max_value
== 0)
1003 type_code
= TYPE_CODE_UNION
;
1005 type_code
= TYPE_CODE_STRUCT
;
1008 /* Create a new type or use the pending type. */
1009 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1012 t
= new_type (NULL
);
1013 add_pending (cur_fdr
, ext_sh
, t
);
1018 /* Do not set the tag name if it is a compiler generated tag name
1019 (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
1020 Alpha cc puts out an sh->iss of zero for those. */
1021 if (sh
->iss
== 0 || name
[0] == '.' || name
[0] == '\0')
1022 TYPE_NAME (t
) = NULL
;
1024 TYPE_NAME (t
) = obconcat (&mdebugread_objfile
->objfile_obstack
,
1025 name
, (char *) NULL
);
1027 TYPE_CODE (t
) = type_code
;
1028 TYPE_LENGTH (t
) = sh
->value
;
1029 TYPE_NFIELDS (t
) = nfields
;
1030 TYPE_FIELDS (t
) = f
= ((struct field
*)
1032 nfields
* sizeof (struct field
)));
1034 if (type_code
== TYPE_CODE_ENUM
)
1036 int unsigned_enum
= 1;
1038 /* This is a non-empty enum. */
1040 /* DEC c89 has the number of enumerators in the sh.value field,
1041 not the type length, so we have to compensate for that
1042 incompatibility quirk.
1043 This might do the wrong thing for an enum with one or two
1044 enumerators and gcc -gcoff -fshort-enums, but these cases
1045 are hopefully rare enough.
1046 Alpha cc -migrate has a sh.value field of zero, we adjust
1048 if (TYPE_LENGTH (t
) == TYPE_NFIELDS (t
)
1049 || TYPE_LENGTH (t
) == 0)
1050 TYPE_LENGTH (t
) = gdbarch_int_bit (gdbarch
) / HOST_CHAR_BIT
;
1051 for (ext_tsym
= ext_sh
+ external_sym_size
;
1053 ext_tsym
+= external_sym_size
)
1056 struct symbol
*enum_sym
;
1058 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
1060 if (tsym
.st
!= stMember
)
1063 SET_FIELD_ENUMVAL (*f
, tsym
.value
);
1064 FIELD_TYPE (*f
) = t
;
1065 FIELD_NAME (*f
) = debug_info
->ss
+ cur_fdr
->issBase
+ tsym
.iss
;
1066 FIELD_BITSIZE (*f
) = 0;
1068 enum_sym
= allocate_symbol (mdebugread_objfile
);
1069 SYMBOL_SET_LINKAGE_NAME
1071 obstack_strdup (&mdebugread_objfile
->objfile_obstack
,
1073 SYMBOL_ACLASS_INDEX (enum_sym
) = LOC_CONST
;
1074 SYMBOL_TYPE (enum_sym
) = t
;
1075 SYMBOL_DOMAIN (enum_sym
) = VAR_DOMAIN
;
1076 SYMBOL_VALUE (enum_sym
) = tsym
.value
;
1077 if (SYMBOL_VALUE (enum_sym
) < 0)
1079 add_symbol (enum_sym
, top_stack
->cur_st
, top_stack
->cur_block
);
1081 /* Skip the stMembers that we've handled. */
1086 TYPE_UNSIGNED (t
) = 1;
1088 /* Make this the current type. */
1089 top_stack
->cur_type
= t
;
1090 top_stack
->cur_field
= 0;
1092 /* Do not create a symbol for alpha cc unnamed structs. */
1096 /* gcc puts out an empty struct for an opaque struct definitions,
1097 do not create a symbol for it either. */
1098 if (TYPE_NFIELDS (t
) == 0)
1104 s
= new_symbol (name
);
1105 SYMBOL_DOMAIN (s
) = STRUCT_DOMAIN
;
1106 SYMBOL_ACLASS_INDEX (s
) = LOC_TYPEDEF
;
1107 SYMBOL_VALUE (s
) = 0;
1108 SYMBOL_TYPE (s
) = t
;
1109 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
1112 /* End of local variables shared by struct, union, enum, and
1113 block (as yet unknown struct/union/enum) processing. */
1117 found_ecoff_debugging_info
= 1;
1118 /* Beginnning of (code) block. Value of symbol
1119 is the displacement from procedure start. */
1120 push_parse_stack ();
1122 /* Do not start a new block if this is the outermost block of a
1123 procedure. This allows the LOC_BLOCK symbol to point to the
1124 block with the local variables, so funcname::var works. */
1125 if (top_stack
->blocktype
== stProc
1126 || top_stack
->blocktype
== stStaticProc
)
1128 top_stack
->blocktype
= stNil
;
1132 top_stack
->blocktype
= stBlock
;
1133 b
= new_block (NON_FUNCTION_BLOCK
, psymtab_language
);
1134 BLOCK_START (b
) = sh
->value
+ top_stack
->procadr
;
1135 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
1136 top_stack
->cur_block
= b
;
1137 add_block (b
, top_stack
->cur_st
);
1140 case stEnd
: /* end (of anything) */
1141 if (sh
->sc
== scInfo
|| SC_IS_COMMON (sh
->sc
))
1143 /* Finished with type */
1144 top_stack
->cur_type
= 0;
1146 else if (sh
->sc
== scText
&&
1147 (top_stack
->blocktype
== stProc
||
1148 top_stack
->blocktype
== stStaticProc
))
1150 /* Finished with procedure */
1151 const struct blockvector
*bv
1152 = SYMTAB_BLOCKVECTOR (top_stack
->cur_st
);
1153 struct mdebug_extra_func_info
*e
;
1154 struct block
*cblock
= top_stack
->cur_block
;
1155 struct type
*ftype
= top_stack
->cur_type
;
1158 BLOCK_END (top_stack
->cur_block
) += sh
->value
; /* size */
1160 /* Make up special symbol to contain procedure specific info. */
1161 s
= new_symbol (MDEBUG_EFI_SYMBOL_NAME
);
1162 SYMBOL_DOMAIN (s
) = LABEL_DOMAIN
;
1163 SYMBOL_ACLASS_INDEX (s
) = LOC_CONST
;
1164 SYMBOL_TYPE (s
) = objfile_type (mdebugread_objfile
)->builtin_void
;
1165 e
= OBSTACK_ZALLOC (&mdebugread_objfile
->objfile_obstack
,
1166 mdebug_extra_func_info
);
1167 SYMBOL_VALUE_BYTES (s
) = (gdb_byte
*) e
;
1168 e
->numargs
= top_stack
->numargs
;
1169 e
->pdr
.framereg
= -1;
1170 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
1172 /* f77 emits proc-level with address bounds==[0,0],
1173 So look for such child blocks, and patch them. */
1174 for (i
= 0; i
< BLOCKVECTOR_NBLOCKS (bv
); i
++)
1176 struct block
*b_bad
= BLOCKVECTOR_BLOCK (bv
, i
);
1178 if (BLOCK_SUPERBLOCK (b_bad
) == cblock
1179 && BLOCK_START (b_bad
) == top_stack
->procadr
1180 && BLOCK_END (b_bad
) == top_stack
->procadr
)
1182 BLOCK_START (b_bad
) = BLOCK_START (cblock
);
1183 BLOCK_END (b_bad
) = BLOCK_END (cblock
);
1187 if (TYPE_NFIELDS (ftype
) <= 0)
1189 /* No parameter type information is recorded with the function's
1190 type. Set that from the type of the parameter symbols. */
1191 int nparams
= top_stack
->numargs
;
1197 struct block_iterator iter
;
1199 TYPE_NFIELDS (ftype
) = nparams
;
1200 TYPE_FIELDS (ftype
) = (struct field
*)
1201 TYPE_ALLOC (ftype
, nparams
* sizeof (struct field
));
1204 ALL_BLOCK_SYMBOLS (cblock
, iter
, sym
)
1206 if (iparams
== nparams
)
1209 if (SYMBOL_IS_ARGUMENT (sym
))
1211 TYPE_FIELD_TYPE (ftype
, iparams
) = SYMBOL_TYPE (sym
);
1212 TYPE_FIELD_ARTIFICIAL (ftype
, iparams
) = 0;
1219 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stBlock
)
1221 /* End of (code) block. The value of the symbol is the
1222 displacement from the procedure`s start address of the
1223 end of this block. */
1224 BLOCK_END (top_stack
->cur_block
) = sh
->value
+ top_stack
->procadr
;
1226 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stNil
)
1228 /* End of outermost block. Pop parse stack and ignore. The
1229 following stEnd of stProc will take care of the block. */
1232 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stFile
)
1234 /* End of file. Pop parse stack and ignore. Higher
1235 level code deals with this. */
1239 complaint (_("stEnd with storage class %d not handled"), sh
->sc
);
1241 pop_parse_stack (); /* Restore previous lexical context. */
1244 case stMember
: /* member of struct or union */
1247 = &TYPE_FIELDS (top_stack
->cur_type
)[top_stack
->cur_field
++];
1248 FIELD_NAME (*f
) = name
;
1249 SET_FIELD_BITPOS (*f
, sh
->value
);
1251 FIELD_TYPE (*f
) = parse_type (cur_fd
, ax
, sh
->index
,
1252 &bitsize
, bigend
, name
);
1253 FIELD_BITSIZE (*f
) = bitsize
;
1257 case stIndirect
: /* forward declaration on Irix5 */
1258 /* Forward declarations from Irix5 cc are handled by cross_ref,
1262 case stTypedef
: /* type definition */
1263 found_ecoff_debugging_info
= 1;
1265 /* Typedefs for forward declarations and opaque structs from alpha cc
1266 are handled by cross_ref, skip them. */
1270 /* Parse the type or use the pending type. */
1271 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1274 t
= parse_type (cur_fd
, ax
, sh
->index
, NULL
, bigend
, name
);
1275 add_pending (cur_fdr
, ext_sh
, t
);
1280 /* Mips cc puts out a typedef with the name of the struct for forward
1281 declarations. These should not go into the symbol table and
1282 TYPE_NAME should not be set for them.
1283 They can't be distinguished from an intentional typedef to
1284 the same name however:
1286 struct x { int ix; int jx; };
1290 struct xx {int ixx; int jxx; };
1291 generates a cross referencing stTypedef for x and xx.
1292 The user visible effect of this is that the type of a pointer
1293 to struct foo sometimes is given as `foo *' instead of `struct foo *'.
1294 The problem is fixed with alpha cc and Irix5 cc. */
1296 /* However if the typedef cross references to an opaque aggregate, it
1297 is safe to omit it from the symbol table. */
1299 if (has_opaque_xref (cur_fdr
, sh
))
1301 s
= new_symbol (name
);
1302 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
1303 SYMBOL_ACLASS_INDEX (s
) = LOC_TYPEDEF
;
1304 SYMBOL_BLOCK_VALUE (s
) = top_stack
->cur_block
;
1305 SYMBOL_TYPE (s
) = t
;
1306 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
1308 /* Incomplete definitions of structs should not get a name. */
1309 if (TYPE_NAME (SYMBOL_TYPE (s
)) == NULL
1310 && (TYPE_NFIELDS (SYMBOL_TYPE (s
)) != 0
1311 || (TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_STRUCT
1312 && TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_UNION
)))
1314 if (TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_PTR
1315 || TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_FUNC
)
1317 /* If we are giving a name to a type such as "pointer to
1318 foo" or "function returning foo", we better not set
1319 the TYPE_NAME. If the program contains "typedef char
1320 *caddr_t;", we don't want all variables of type char
1321 * to print as caddr_t. This is not just a
1322 consequence of GDB's type management; CC and GCC (at
1323 least through version 2.4) both output variables of
1324 either type char * or caddr_t with the type
1325 refering to the stTypedef symbol for caddr_t. If a future
1326 compiler cleans this up it GDB is not ready for it
1327 yet, but if it becomes ready we somehow need to
1328 disable this check (without breaking the PCC/GCC2.4
1333 Fortunately, this check seems not to be necessary
1334 for anything except pointers or functions. */
1337 TYPE_NAME (SYMBOL_TYPE (s
)) = SYMBOL_LINKAGE_NAME (s
);
1341 case stFile
: /* file name */
1342 push_parse_stack ();
1343 top_stack
->blocktype
= sh
->st
;
1346 /* I`ve never seen these for C */
1348 break; /* register relocation */
1350 break; /* forwarding address */
1352 break; /* constant */
1354 complaint (_("unknown symbol type 0x%x"), sh
->st
);
1363 static const struct objfile_key
<struct type
*,
1364 gdb::noop_deleter
<struct type
*>>
1367 static struct type
*
1368 basic_type (int bt
, struct objfile
*objfile
)
1370 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
1371 struct type
**map_bt
= basic_type_data
.get (objfile
);
1379 map_bt
= OBSTACK_CALLOC (&objfile
->objfile_obstack
,
1380 btMax
, struct type
*);
1381 basic_type_data
.set (objfile
, map_bt
);
1390 tp
= objfile_type (objfile
)->builtin_void
;
1394 tp
= init_pointer_type (objfile
, 32, "adr_32",
1395 objfile_type (objfile
)->builtin_void
);
1399 tp
= init_integer_type (objfile
, 8, 0, "char");
1400 TYPE_NOSIGN (tp
) = 1;
1404 tp
= init_integer_type (objfile
, 8, 1, "unsigned char");
1408 tp
= init_integer_type (objfile
, 16, 0, "short");
1412 tp
= init_integer_type (objfile
, 16, 1, "unsigned short");
1416 tp
= init_integer_type (objfile
, 32, 0, "int");
1420 tp
= init_integer_type (objfile
, 32, 1, "unsigned int");
1424 tp
= init_integer_type (objfile
, 32, 0, "long");
1428 tp
= init_integer_type (objfile
, 32, 1, "unsigned long");
1432 tp
= init_float_type (objfile
, gdbarch_float_bit (gdbarch
),
1433 "float", gdbarch_float_format (gdbarch
));
1437 tp
= init_float_type (objfile
, gdbarch_double_bit (gdbarch
),
1438 "double", gdbarch_double_format (gdbarch
));
1442 tp
= init_complex_type (objfile
, "complex",
1443 basic_type (btFloat
, objfile
));
1447 tp
= init_complex_type (objfile
, "double complex",
1448 basic_type (btFloat
, objfile
));
1452 /* We use TYPE_CODE_INT to print these as integers. Does this do any
1453 good? Would we be better off with TYPE_CODE_ERROR? Should
1454 TYPE_CODE_ERROR print things in hex if it knows the size? */
1455 tp
= init_integer_type (objfile
, gdbarch_int_bit (gdbarch
), 0,
1460 tp
= init_type (objfile
, TYPE_CODE_ERROR
,
1461 gdbarch_double_bit (gdbarch
), "floating decimal");
1465 /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
1467 tp
= init_type (objfile
, TYPE_CODE_STRING
, TARGET_CHAR_BIT
, "string");
1471 tp
= objfile_type (objfile
)->builtin_void
;
1475 tp
= init_integer_type (objfile
, 64, 0, "long");
1479 tp
= init_integer_type (objfile
, 64, 1, "unsigned long");
1483 tp
= init_integer_type (objfile
, 64, 0, "long long");
1487 tp
= init_integer_type (objfile
, 64, 1, "unsigned long long");
1491 tp
= init_pointer_type (objfile
, 64, "adr_64",
1492 objfile_type (objfile
)->builtin_void
);
1496 tp
= init_integer_type (objfile
, 64, 0, "int");
1500 tp
= init_integer_type (objfile
, 64, 1, "unsigned int");
1512 /* Parse the type information provided in the raw AX entries for
1513 the symbol SH. Return the bitfield size in BS, in case.
1514 We must byte-swap the AX entries before we use them; BIGEND says whether
1515 they are big-endian or little-endian (from fh->fBigendian). */
1517 static struct type
*
1518 parse_type (int fd
, union aux_ext
*ax
, unsigned int aux_index
, int *bs
,
1519 int bigend
, const char *sym_name
)
1522 struct type
*tp
= 0;
1523 enum type_code type_code
= TYPE_CODE_UNDEF
;
1525 /* Handle undefined types, they have indexNil. */
1526 if (aux_index
== indexNil
)
1527 return basic_type (btInt
, mdebugread_objfile
);
1529 /* Handle corrupt aux indices. */
1530 if (aux_index
>= (debug_info
->fdr
+ fd
)->caux
)
1532 index_complaint (sym_name
);
1533 return basic_type (btInt
, mdebugread_objfile
);
1537 /* Use aux as a type information record, map its basic type. */
1538 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1539 tp
= basic_type (t
->bt
, mdebugread_objfile
);
1542 /* Cannot use builtin types -- build our own. */
1546 type_code
= TYPE_CODE_STRUCT
;
1549 type_code
= TYPE_CODE_UNION
;
1552 type_code
= TYPE_CODE_ENUM
;
1555 type_code
= TYPE_CODE_RANGE
;
1558 type_code
= TYPE_CODE_SET
;
1561 /* alpha cc -migrate uses this for typedefs. The true type will
1562 be obtained by crossreferencing below. */
1563 type_code
= TYPE_CODE_ERROR
;
1566 /* alpha cc uses this for typedefs. The true type will be
1567 obtained by crossreferencing below. */
1568 type_code
= TYPE_CODE_ERROR
;
1571 basic_type_complaint (t
->bt
, sym_name
);
1572 return basic_type (btInt
, mdebugread_objfile
);
1576 /* Move on to next aux. */
1581 int width
= AUX_GET_WIDTH (bigend
, ax
);
1583 /* Inhibit core dumps if TIR is corrupted. */
1586 /* Alpha cc -migrate encodes char and unsigned char types
1587 as short and unsigned short types with a field width of 8.
1588 Enum types also have a field width which we ignore for now. */
1589 if (t
->bt
== btShort
&& width
== 8)
1590 tp
= basic_type (btChar
, mdebugread_objfile
);
1591 else if (t
->bt
== btUShort
&& width
== 8)
1592 tp
= basic_type (btUChar
, mdebugread_objfile
);
1593 else if (t
->bt
== btEnum
)
1596 complaint (_("can't handle TIR fBitfield for %s"),
1604 /* A btIndirect entry cross references to an aux entry containing
1606 if (t
->bt
== btIndirect
)
1613 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
1615 if (rn
->rfd
== 0xfff)
1617 rf
= AUX_GET_ISYM (bigend
, ax
);
1625 complaint (_("unable to cross ref btIndirect for %s"), sym_name
);
1626 return basic_type (btInt
, mdebugread_objfile
);
1628 xref_fh
= get_rfd (fd
, rf
);
1629 xref_fd
= xref_fh
- debug_info
->fdr
;
1630 tp
= parse_type (xref_fd
, debug_info
->external_aux
+ xref_fh
->iauxBase
,
1631 rn
->index
, NULL
, xref_fh
->fBigendian
, sym_name
);
1634 /* All these types really point to some (common) MIPS type
1635 definition, and only the type-qualifiers fully identify
1636 them. We'll make the same effort at sharing. */
1637 if (t
->bt
== btStruct
||
1641 /* btSet (I think) implies that the name is a tag name, not a typedef
1642 name. This apparently is a MIPS extension for C sets. */
1647 /* Try to cross reference this type, build new type on failure. */
1648 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1650 tp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
1652 /* DEC c89 produces cross references to qualified aggregate types,
1653 dereference them. */
1654 while (TYPE_CODE (tp
) == TYPE_CODE_PTR
1655 || TYPE_CODE (tp
) == TYPE_CODE_ARRAY
)
1656 tp
= TYPE_TARGET_TYPE (tp
);
1658 /* Make sure that TYPE_CODE(tp) has an expected type code.
1659 Any type may be returned from cross_ref if file indirect entries
1661 if (TYPE_CODE (tp
) != TYPE_CODE_STRUCT
1662 && TYPE_CODE (tp
) != TYPE_CODE_UNION
1663 && TYPE_CODE (tp
) != TYPE_CODE_ENUM
)
1665 unexpected_type_code_complaint (sym_name
);
1669 /* Usually, TYPE_CODE(tp) is already type_code. The main
1670 exception is if we guessed wrong re struct/union/enum.
1671 But for struct vs. union a wrong guess is harmless, so
1672 don't complain(). */
1673 if ((TYPE_CODE (tp
) == TYPE_CODE_ENUM
1674 && type_code
!= TYPE_CODE_ENUM
)
1675 || (TYPE_CODE (tp
) != TYPE_CODE_ENUM
1676 && type_code
== TYPE_CODE_ENUM
))
1678 bad_tag_guess_complaint (sym_name
);
1681 if (TYPE_CODE (tp
) != type_code
)
1683 TYPE_CODE (tp
) = type_code
;
1686 /* Do not set the tag name if it is a compiler generated tag name
1687 (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */
1688 if (name
[0] == '.' || name
[0] == '\0')
1689 TYPE_NAME (tp
) = NULL
;
1690 else if (TYPE_NAME (tp
) == NULL
1691 || strcmp (TYPE_NAME (tp
), name
) != 0)
1693 = obstack_strdup (&mdebugread_objfile
->objfile_obstack
, name
);
1697 /* All these types really point to some (common) MIPS type
1698 definition, and only the type-qualifiers fully identify
1699 them. We'll make the same effort at sharing.
1700 FIXME: We are not doing any guessing on range types. */
1701 if (t
->bt
== btRange
)
1705 /* Try to cross reference this type, build new type on failure. */
1706 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1708 tp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
1710 /* Make sure that TYPE_CODE(tp) has an expected type code.
1711 Any type may be returned from cross_ref if file indirect entries
1713 if (TYPE_CODE (tp
) != TYPE_CODE_RANGE
)
1715 unexpected_type_code_complaint (sym_name
);
1719 /* Usually, TYPE_CODE(tp) is already type_code. The main
1720 exception is if we guessed wrong re struct/union/enum. */
1721 if (TYPE_CODE (tp
) != type_code
)
1723 bad_tag_guess_complaint (sym_name
);
1724 TYPE_CODE (tp
) = type_code
;
1726 if (TYPE_NAME (tp
) == NULL
1727 || strcmp (TYPE_NAME (tp
), name
) != 0)
1729 = obstack_strdup (&mdebugread_objfile
->objfile_obstack
, name
);
1732 if (t
->bt
== btTypedef
)
1736 /* Try to cross reference this type, it should succeed. */
1737 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1740 complaint (_("unable to cross ref btTypedef for %s"), sym_name
);
1741 tp
= basic_type (btInt
, mdebugread_objfile
);
1745 /* Deal with range types. */
1746 if (t
->bt
== btRange
)
1748 TYPE_NFIELDS (tp
) = 0;
1749 TYPE_RANGE_DATA (tp
) = ((struct range_bounds
*)
1750 TYPE_ZALLOC (tp
, sizeof (struct range_bounds
)));
1751 TYPE_LOW_BOUND (tp
) = AUX_GET_DNLOW (bigend
, ax
);
1753 TYPE_HIGH_BOUND (tp
) = AUX_GET_DNHIGH (bigend
, ax
);
1757 /* Parse all the type qualifiers now. If there are more
1758 than 6 the game will continue in the next aux. */
1762 #define PARSE_TQ(tq) \
1763 if (t->tq != tqNil) \
1764 ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
1776 /* mips cc 2.x and gcc never put out continued aux entries. */
1780 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1784 /* Complain for illegal continuations due to corrupt aux entries. */
1786 complaint (_("illegal TIR continued for %s"), sym_name
);
1791 /* Make up a complex type from a basic one. Type is passed by
1792 reference in TPP and side-effected as necessary. The type
1793 qualifier TQ says how to handle the aux symbols at AX for
1794 the symbol SX we are currently analyzing. BIGEND says whether
1795 aux symbols are big-endian or little-endian.
1796 Returns the number of aux symbols we parsed. */
1799 upgrade_type (int fd
, struct type
**tpp
, int tq
, union aux_ext
*ax
, int bigend
,
1800 const char *sym_name
)
1805 /* Used in array processing. */
1816 t
= lookup_pointer_type (*tpp
);
1821 t
= lookup_function_type (*tpp
);
1828 /* Determine and record the domain type (type of index). */
1829 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, &rndx
);
1835 rf
= AUX_GET_ISYM (bigend
, ax
);
1838 fh
= get_rfd (fd
, rf
);
1840 indx
= parse_type (fh
- debug_info
->fdr
,
1841 debug_info
->external_aux
+ fh
->iauxBase
,
1842 id
, NULL
, bigend
, sym_name
);
1844 /* The bounds type should be an integer type, but might be anything
1845 else due to corrupt aux entries. */
1846 if (TYPE_CODE (indx
) != TYPE_CODE_INT
)
1848 complaint (_("illegal array index type for %s, assuming int"),
1850 indx
= objfile_type (mdebugread_objfile
)->builtin_int
;
1853 /* Get the bounds, and create the array type. */
1855 lower
= AUX_GET_DNLOW (bigend
, ax
);
1857 upper
= AUX_GET_DNHIGH (bigend
, ax
);
1859 rf
= AUX_GET_WIDTH (bigend
, ax
); /* bit size of array element */
1861 range
= create_static_range_type (NULL
, indx
, lower
, upper
);
1863 t
= create_array_type (NULL
, *tpp
, range
);
1865 /* We used to fill in the supplied array element bitsize
1866 here if the TYPE_LENGTH of the target type was zero.
1867 This happens for a `pointer to an array of anonymous structs',
1868 but in this case the array element bitsize is also zero,
1869 so nothing is gained.
1870 And we used to check the TYPE_LENGTH of the target type against
1871 the supplied array element bitsize.
1872 gcc causes a mismatch for `pointer to array of object',
1873 since the sdb directives it uses do not have a way of
1874 specifying the bitsize, but it does no harm (the
1875 TYPE_LENGTH should be correct) and we should be able to
1876 ignore the erroneous bitsize from the auxiliary entry safely.
1877 dbx seems to ignore it too. */
1879 /* TYPE_TARGET_STUB now takes care of the zero TYPE_LENGTH problem. */
1880 if (TYPE_LENGTH (*tpp
) == 0)
1881 TYPE_TARGET_STUB (t
) = 1;
1887 /* Volatile -- currently ignored */
1891 /* Const -- currently ignored */
1895 complaint (_("unknown type qualifier 0x%x"), tq
);
1901 /* Parse a procedure descriptor record PR. Note that the procedure is
1902 parsed _after_ the local symbols, now we just insert the extra
1903 information we need into a MDEBUG_EFI_SYMBOL_NAME symbol that has
1904 already been placed in the procedure's main block. Note also that
1905 images that have been partially stripped (ld -x) have been deprived
1906 of local symbols, and we have to cope with them here. FIRST_OFF is
1907 the offset of the first procedure for this FDR; we adjust the
1908 address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab
1909 to look for the function which contains the MDEBUG_EFI_SYMBOL_NAME symbol
1910 in question, or NULL to use top_stack->cur_block. */
1913 parse_procedure (PDR
*pr
, struct compunit_symtab
*search_symtab
,
1914 struct partial_symtab
*pst
)
1916 struct symbol
*s
, *i
;
1917 const struct block
*b
;
1920 /* Simple rule to find files linked "-x". */
1921 if (cur_fdr
->rss
== -1)
1925 /* Static procedure at address pr->adr. Sigh. */
1926 /* FIXME-32x64. assuming pr->adr fits in long. */
1927 complaint (_("can't handle PDR for static proc at 0x%lx"),
1928 (unsigned long) pr
->adr
);
1936 (*debug_swap
->swap_ext_in
) (cur_bfd
,
1937 ((char *) debug_info
->external_ext
1939 * debug_swap
->external_ext_size
)),
1941 sh_name
= debug_info
->ssext
+ she
.asym
.iss
;
1949 (*debug_swap
->swap_sym_in
) (cur_bfd
,
1950 ((char *) debug_info
->external_sym
1951 + ((cur_fdr
->isymBase
+ pr
->isym
)
1952 * debug_swap
->external_sym_size
)),
1954 sh_name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
1957 if (search_symtab
!= NULL
)
1960 /* This loses both in the case mentioned (want a static, find a global),
1961 but also if we are looking up a non-mangled name which happens to
1962 match the name of a mangled function. */
1963 /* We have to save the cur_fdr across the call to lookup_symbol.
1964 If the pdr is for a static function and if a global function with
1965 the same name exists, lookup_symbol will eventually read in the symtab
1966 for the global function and clobber cur_fdr. */
1967 FDR
*save_cur_fdr
= cur_fdr
;
1969 s
= lookup_symbol (sh_name
, NULL
, VAR_DOMAIN
, 0);
1970 cur_fdr
= save_cur_fdr
;
1974 BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (search_symtab
),
1981 s
= mylookup_symbol (sh_name
, top_stack
->cur_block
,
1982 VAR_DOMAIN
, LOC_BLOCK
);
1986 b
= SYMBOL_BLOCK_VALUE (s
);
1990 complaint (_("PDR for %s, but no symbol"), sh_name
);
1994 /* FIXME -- delete. We can't do symbol allocation now; it's all done. */
1995 s
= new_symbol (sh_name
);
1996 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
1997 SYMBOL_CLASS (s
) = LOC_BLOCK
;
1998 /* Don't know its type, hope int is ok. */
2000 = lookup_function_type (objfile_type (pst
->objfile
)->builtin_int
);
2001 add_symbol (s
, top_stack
->cur_st
, top_stack
->cur_block
);
2002 /* Won't have symbols for this one. */
2004 SYMBOL_BLOCK_VALUE (s
) = b
;
2005 BLOCK_FUNCTION (b
) = s
;
2006 BLOCK_START (b
) = pr
->adr
;
2007 /* BOUND used to be the end of procedure's text, but the
2008 argument is no longer passed in. */
2009 BLOCK_END (b
) = bound
;
2010 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
2011 add_block (b
, top_stack
->cur_st
);
2015 i
= mylookup_symbol (MDEBUG_EFI_SYMBOL_NAME
, b
, LABEL_DOMAIN
, LOC_CONST
);
2019 struct mdebug_extra_func_info
*e
;
2021 e
= (struct mdebug_extra_func_info
*) SYMBOL_VALUE_BYTES (i
);
2024 /* GDB expects the absolute function start address for the
2025 procedure descriptor in e->pdr.adr.
2026 As the address in the procedure descriptor is usually relative,
2027 we would have to relocate e->pdr.adr with cur_fdr->adr and
2028 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)).
2029 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
2030 in shared libraries on some systems, and on other systems
2031 e->pdr.adr is sometimes offset by a bogus value.
2032 To work around these problems, we replace e->pdr.adr with
2033 the start address of the function. */
2034 e
->pdr
.adr
= BLOCK_START (b
);
2037 /* It would be reasonable that functions that have been compiled
2038 without debugging info have a btNil type for their return value,
2039 and functions that are void and are compiled with debugging info
2041 gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
2042 to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
2044 The glevel field in cur_fdr could be used to determine the presence
2045 of debugging info, but GCC doesn't always pass the -g switch settings
2046 to the assembler and GAS doesn't set the glevel field from the -g switch
2048 To work around these problems, the return value type of a TYPE_CODE_VOID
2049 function is adjusted accordingly if no debugging info was found in the
2050 compilation unit. */
2052 if (processing_gcc_compilation
== 0
2053 && found_ecoff_debugging_info
== 0
2054 && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s
))) == TYPE_CODE_VOID
)
2055 SYMBOL_TYPE (s
) = objfile_type (mdebugread_objfile
)->nodebug_text_symbol
;
2058 /* Parse the external symbol ES. Just call parse_symbol() after
2059 making sure we know where the aux are for it.
2060 BIGEND says whether aux entries are big-endian or little-endian.
2062 This routine clobbers top_stack->cur_block and ->cur_st. */
2064 static void parse_external (EXTR
*, int, struct section_offsets
*,
2068 parse_external (EXTR
*es
, int bigend
, struct section_offsets
*section_offsets
,
2069 struct objfile
*objfile
)
2073 if (es
->ifd
!= ifdNil
)
2076 cur_fdr
= debug_info
->fdr
+ cur_fd
;
2077 ax
= debug_info
->external_aux
+ cur_fdr
->iauxBase
;
2081 cur_fdr
= debug_info
->fdr
;
2085 /* Reading .o files */
2086 if (SC_IS_UNDEF (es
->asym
.sc
) || es
->asym
.sc
== scNil
)
2089 switch (es
->asym
.st
)
2092 /* These are generated for static symbols in .o files,
2113 /* FIXME: Turn this into a complaint? */
2115 printf_filtered (_("Warning: %s `%s' is undefined (in %s)\n"),
2116 what
, debug_info
->ssext
+ es
->asym
.iss
,
2117 fdr_name (cur_fdr
));
2121 switch (es
->asym
.st
)
2125 /* There is no need to parse the external procedure symbols.
2126 If they are from objects compiled without -g, their index will
2127 be indexNil, and the symbol definition from the minimal symbol
2128 is preferrable (yielding a function returning int instead of int).
2129 If the index points to a local procedure symbol, the local
2130 symbol already provides the correct type.
2131 Note that the index of the external procedure symbol points
2132 to the local procedure symbol in the local symbol table, and
2133 _not_ to the auxiliary symbol info. */
2137 /* Global common symbols are resolved by the runtime loader,
2139 if (SC_IS_COMMON (es
->asym
.sc
))
2142 /* Note that the case of a symbol with indexNil must be handled
2143 anyways by parse_symbol(). */
2144 parse_symbol (&es
->asym
, ax
, NULL
,
2145 bigend
, section_offsets
, objfile
);
2152 /* Parse the line number info for file descriptor FH into
2153 GDB's linetable LT. MIPS' encoding requires a little bit
2154 of magic to get things out. Note also that MIPS' line
2155 numbers can go back and forth, apparently we can live
2156 with that and do not need to reorder our linetables. */
2159 parse_lines (FDR
*fh
, PDR
*pr
, struct linetable
*lt
, int maxlines
,
2160 CORE_ADDR textlow
, CORE_ADDR lowest_pdr_addr
)
2162 unsigned char *base
;
2164 int delta
, count
, lineno
= 0;
2166 if (fh
->cbLine
== 0)
2169 /* Scan by procedure descriptors. */
2171 for (j
= 0; j
< fh
->cpd
; j
++, pr
++)
2175 unsigned char *halt
;
2177 /* No code for this one. */
2178 if (pr
->iline
== ilineNil
||
2179 pr
->lnLow
== -1 || pr
->lnHigh
== -1)
2182 /* Determine start and end address of compressed line bytes for
2184 base
= debug_info
->line
+ fh
->cbLineOffset
;
2185 if (j
!= (fh
->cpd
- 1))
2186 halt
= base
+ pr
[1].cbLineOffset
;
2188 halt
= base
+ fh
->cbLine
;
2189 base
+= pr
->cbLineOffset
;
2191 adr
= textlow
+ pr
->adr
- lowest_pdr_addr
;
2193 l
= adr
>> 2; /* in words */
2194 for (lineno
= pr
->lnLow
; base
< halt
;)
2196 count
= *base
& 0x0f;
2197 delta
= *base
++ >> 4;
2202 delta
= (base
[0] << 8) | base
[1];
2203 if (delta
>= 0x8000)
2207 lineno
+= delta
; /* first delta is 0 */
2209 /* Complain if the line table overflows. Could happen
2210 with corrupt binaries. */
2211 if (lt
->nitems
>= maxlines
)
2213 complaint (_("guessed size of linetable for %s incorrectly"),
2217 k
= add_line (lt
, lineno
, l
, k
);
2224 function_outside_compilation_unit_complaint (const char *arg1
)
2226 complaint (_("function `%s' appears to be defined "
2227 "outside of all compilation units"),
2231 /* Use the STORAGE_CLASS to compute which section the given symbol
2232 belongs to, and then records this new minimal symbol. */
2235 record_minimal_symbol (minimal_symbol_reader
&reader
,
2236 const char *name
, const CORE_ADDR address
,
2237 enum minimal_symbol_type ms_type
, int storage_class
,
2238 struct objfile
*objfile
)
2242 switch (storage_class
)
2245 section
= SECT_OFF_TEXT (objfile
);
2248 section
= SECT_OFF_DATA (objfile
);
2251 section
= SECT_OFF_BSS (objfile
);
2254 section
= get_section_index (objfile
, ".sdata");
2257 section
= get_section_index (objfile
, ".sbss");
2260 section
= get_section_index (objfile
, ".rdata");
2263 section
= get_section_index (objfile
, ".init");
2266 section
= get_section_index (objfile
, ".xdata");
2269 section
= get_section_index (objfile
, ".pdata");
2272 section
= get_section_index (objfile
, ".fini");
2275 section
= get_section_index (objfile
, ".rconst");
2279 section
= get_section_index (objfile
, ".tlsdata");
2284 section
= get_section_index (objfile
, ".tlsbss");
2288 /* This kind of symbol is not associated to a section. */
2292 reader
.record_with_info (name
, address
, ms_type
, section
);
2295 /* Master parsing procedure for first-pass reading of file symbols
2296 into a partial_symtab. */
2299 parse_partial_symbols (minimal_symbol_reader
&reader
,
2300 struct objfile
*objfile
)
2302 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
2303 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
2304 const bfd_size_type external_rfd_size
= debug_swap
->external_rfd_size
;
2305 const bfd_size_type external_ext_size
= debug_swap
->external_ext_size
;
2306 void (*const swap_ext_in
) (bfd
*, void *, EXTR
*) = debug_swap
->swap_ext_in
;
2307 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
2308 void (*const swap_rfd_in
) (bfd
*, void *, RFDT
*) = debug_swap
->swap_rfd_in
;
2310 HDRR
*hdr
= &debug_info
->symbolic_header
;
2311 /* Running pointers */
2318 struct partial_symtab
*pst
;
2319 int textlow_not_set
= 1;
2321 /* List of current psymtab's include files. */
2322 const char **psymtab_include_list
;
2323 int includes_allocated
;
2326 struct pst_map
*fdr_to_pst
;
2327 /* Index within current psymtab dependency list. */
2328 struct partial_symtab
**dependency_list
;
2329 int dependencies_used
, dependencies_allocated
;
2331 enum language prev_language
;
2332 asection
*text_sect
;
2333 int relocatable
= 0;
2335 /* Irix 5.2 shared libraries have a fh->adr field of zero, but
2336 the shared libraries are prelinked at a high memory address.
2337 We have to adjust the start address of the object file for this case,
2338 by setting it to the start address of the first procedure in the file.
2339 But we should do no adjustments if we are debugging a .o file, where
2340 the text section (and fh->adr) really starts at zero. */
2341 text_sect
= bfd_get_section_by_name (cur_bfd
, ".text");
2342 if (text_sect
!= NULL
2343 && (bfd_section_flags (text_sect
) & SEC_RELOC
))
2346 extern_tab
= XOBNEWVEC (&objfile
->objfile_obstack
, EXTR
, hdr
->iextMax
);
2348 includes_allocated
= 30;
2350 psymtab_include_list
= (const char **) alloca (includes_allocated
*
2351 sizeof (const char *));
2352 next_symbol_text_func
= mdebug_next_symbol_text
;
2354 dependencies_allocated
= 30;
2355 dependencies_used
= 0;
2357 (struct partial_symtab
**) alloca (dependencies_allocated
*
2358 sizeof (struct partial_symtab
*));
2360 set_last_source_file (NULL
);
2365 * Only parse the Local and External symbols, and the Relative FDR.
2366 * Fixup enough of the loader symtab to be able to use it.
2367 * Allocate space only for the file's portions we need to
2372 max_glevel
= MIN_GLEVEL
;
2374 /* Allocate the map FDR -> PST.
2375 Minor hack: -O3 images might claim some global data belongs
2376 to FDR -1. We`ll go along with that. */
2377 gdb::def_vector
<struct pst_map
> fdr_to_pst_holder (hdr
->ifdMax
+ 1);
2378 fdr_to_pst
= fdr_to_pst_holder
.data ();
2381 struct partial_symtab
*new_pst
= new_psymtab ("", objfile
);
2383 fdr_to_pst
[-1].pst
= new_pst
;
2384 FDR_IDX (new_pst
) = -1;
2387 /* Allocate the global pending list. */
2388 pending_list
= XOBNEWVEC (&objfile
->objfile_obstack
, mdebug_pending
*,
2390 memset (pending_list
, 0,
2391 hdr
->ifdMax
* sizeof (struct mdebug_pending
*));
2393 /* Pass 0 over external syms: swap them in. */
2394 gdb::def_vector
<EXTR
> ext_block (hdr
->iextMax
);
2396 ext_out
= (char *) debug_info
->external_ext
;
2397 ext_out_end
= ext_out
+ hdr
->iextMax
* external_ext_size
;
2398 ext_in
= ext_block
.data ();
2399 for (; ext_out
< ext_out_end
; ext_out
+= external_ext_size
, ext_in
++)
2400 (*swap_ext_in
) (cur_bfd
, ext_out
, ext_in
);
2402 /* Pass 1 over external syms: Presize and partition the list. */
2403 ext_in
= ext_block
.data ();
2404 ext_in_end
= ext_in
+ hdr
->iextMax
;
2405 for (; ext_in
< ext_in_end
; ext_in
++)
2407 /* See calls to complain below. */
2408 if (ext_in
->ifd
>= -1
2409 && ext_in
->ifd
< hdr
->ifdMax
2410 && ext_in
->asym
.iss
>= 0
2411 && ext_in
->asym
.iss
< hdr
->issExtMax
)
2412 fdr_to_pst
[ext_in
->ifd
].n_globals
++;
2415 /* Pass 1.5 over files: partition out global symbol space. */
2417 for (f_idx
= -1; f_idx
< hdr
->ifdMax
; f_idx
++)
2419 fdr_to_pst
[f_idx
].globals_offset
= s_idx
;
2420 s_idx
+= fdr_to_pst
[f_idx
].n_globals
;
2421 fdr_to_pst
[f_idx
].n_globals
= 0;
2426 For ECOFF in ELF, we skip the creation of the minimal symbols.
2427 The ECOFF symbols should be a subset of the Elf symbols, and the
2428 section information of the elf symbols will be more accurate.
2429 FIXME! What about Irix 5's native linker?
2431 By default, Elf sections which don't exist in ECOFF
2432 get put in ECOFF's absolute section by the gnu linker.
2433 Since absolute sections don't get relocated, we
2434 end up calculating an address different from that of
2435 the symbol's minimal symbol (created earlier from the
2438 To fix this, either :
2439 1) don't create the duplicate symbol
2440 (assumes ECOFF symtab is a subset of the ELF symtab;
2441 assumes no side-effects result from ignoring ECOFF symbol)
2442 2) create it, only if lookup for existing symbol in ELF's minimal
2445 assumes no side-effects result from ignoring ECOFF symbol)
2446 3) create it, but lookup ELF's minimal symbol and use it's section
2447 during relocation, then modify "uniquify" phase to merge and
2448 eliminate the duplicate symbol
2449 (highly inefficient)
2451 I've implemented #1 here...
2452 Skip the creation of the minimal symbols based on the ECOFF
2455 /* Pass 2 over external syms: fill in external symbols. */
2456 ext_in
= ext_block
.data ();
2457 ext_in_end
= ext_in
+ hdr
->iextMax
;
2458 for (; ext_in
< ext_in_end
; ext_in
++)
2460 enum minimal_symbol_type ms_type
= mst_text
;
2461 CORE_ADDR svalue
= ext_in
->asym
.value
;
2463 /* The Irix 5 native tools seem to sometimes generate bogus
2464 external symbols. */
2465 if (ext_in
->ifd
< -1 || ext_in
->ifd
>= hdr
->ifdMax
)
2467 complaint (_("bad ifd for external symbol: %d (max %ld)"),
2468 ext_in
->ifd
, hdr
->ifdMax
);
2471 if (ext_in
->asym
.iss
< 0 || ext_in
->asym
.iss
>= hdr
->issExtMax
)
2473 complaint (_("bad iss for external symbol: %ld (max %ld)"),
2474 ext_in
->asym
.iss
, hdr
->issExtMax
);
2478 extern_tab
[fdr_to_pst
[ext_in
->ifd
].globals_offset
2479 + fdr_to_pst
[ext_in
->ifd
].n_globals
++] = *ext_in
;
2482 if (SC_IS_UNDEF (ext_in
->asym
.sc
) || ext_in
->asym
.sc
== scNil
)
2486 /* Pass 3 over files, over local syms: fill in static symbols. */
2487 name
= debug_info
->ssext
+ ext_in
->asym
.iss
;
2489 /* Process ECOFF Symbol Types and Storage Classes. */
2490 switch (ext_in
->asym
.st
)
2493 /* Beginnning of Procedure */
2496 /* Load time only static procs */
2497 ms_type
= mst_file_text
;
2500 /* External symbol */
2501 if (SC_IS_COMMON (ext_in
->asym
.sc
))
2503 /* The value of a common symbol is its size, not its address.
2507 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2511 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2515 else if (SC_IS_SBSS (ext_in
->asym
.sc
))
2525 /* On certain platforms, some extra label symbols can be
2526 generated by the linker. One possible usage for this kind
2527 of symbols is to represent the address of the begining of a
2528 given section. For instance, on Tru64 5.1, the address of
2529 the _ftext label is the start address of the .text section.
2531 The storage class of these symbols is usually directly
2532 related to the section to which the symbol refers. For
2533 instance, on Tru64 5.1, the storage class for the _fdata
2534 label is scData, refering to the .data section.
2536 It is actually possible that the section associated to the
2537 storage class of the label does not exist. On True64 5.1
2538 for instance, the libm.so shared library does not contain
2539 any .data section, although it contains a _fpdata label
2540 which storage class is scData... Since these symbols are
2541 usually useless for the debugger user anyway, we just
2542 discard these symbols. */
2544 if (SC_IS_TEXT (ext_in
->asym
.sc
))
2546 if (objfile
->sect_index_text
== -1)
2549 ms_type
= mst_file_text
;
2551 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2553 if (objfile
->sect_index_data
== -1)
2556 ms_type
= mst_file_data
;
2558 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2560 if (objfile
->sect_index_bss
== -1)
2563 ms_type
= mst_file_bss
;
2565 else if (SC_IS_SBSS (ext_in
->asym
.sc
))
2567 const int sbss_sect_index
= get_section_index (objfile
, ".sbss");
2569 if (sbss_sect_index
== -1)
2572 ms_type
= mst_file_bss
;
2579 /* The alpha has the section start addresses in stLocal symbols
2580 whose name starts with a `.'. Skip those but complain for all
2581 other stLocal symbols.
2582 Irix6 puts the section start addresses in stNil symbols, skip
2588 ms_type
= mst_unknown
;
2589 unknown_ext_complaint (name
);
2591 if (!ECOFF_IN_ELF (cur_bfd
))
2592 record_minimal_symbol (reader
, name
, svalue
, ms_type
, ext_in
->asym
.sc
,
2596 /* Pass 3 over files, over local syms: fill in static symbols. */
2597 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
2599 struct partial_symtab
*save_pst
;
2603 cur_fdr
= fh
= debug_info
->fdr
+ f_idx
;
2607 fdr_to_pst
[f_idx
].pst
= NULL
;
2611 /* Determine the start address for this object file from the
2612 file header and relocate it, except for Irix 5.2 zero fh->adr. */
2617 pst
= start_psymtab_common (objfile
,
2620 pst
->read_symtab_private
= XOBNEW (&objfile
->objfile_obstack
, symloc
);
2621 memset (pst
->read_symtab_private
, 0, sizeof (struct symloc
));
2624 FDR_IDX (pst
) = f_idx
;
2625 CUR_BFD (pst
) = cur_bfd
;
2626 DEBUG_SWAP (pst
) = debug_swap
;
2627 DEBUG_INFO (pst
) = debug_info
;
2628 PENDING_LIST (pst
) = pending_list
;
2630 /* The way to turn this into a symtab is to call... */
2631 pst
->read_symtab
= mdebug_read_symtab
;
2633 /* Set up language for the pst.
2634 The language from the FDR is used if it is unambigious (e.g. cfront
2635 with native cc and g++ will set the language to C).
2636 Otherwise we have to deduce the language from the filename.
2637 Native ecoff has every header file in a separate FDR, so
2638 deduce_language_from_filename will return language_unknown for
2639 a header file, which is not what we want.
2640 But the FDRs for the header files are after the FDR for the source
2641 file, so we can assign the language of the source file to the
2642 following header files. Then we save the language in the private
2643 pst data so that we can reuse it when building symtabs. */
2644 prev_language
= psymtab_language
;
2648 case langCplusplusV2
:
2649 psymtab_language
= language_cplus
;
2652 psymtab_language
= deduce_language_from_filename (fdr_name (fh
));
2655 if (psymtab_language
== language_unknown
)
2656 psymtab_language
= prev_language
;
2657 PST_PRIVATE (pst
)->pst_language
= psymtab_language
;
2659 pst
->set_text_high (pst
->raw_text_low ());
2661 /* For stabs-in-ecoff files, the second symbol must be @stab.
2662 This symbol is emitted by mips-tfile to signal that the
2663 current object file uses encapsulated stabs instead of mips
2664 ecoff for local symbols. (It is the second symbol because
2665 the first symbol is the stFile used to signal the start of a
2667 processing_gcc_compilation
= 0;
2670 (*swap_sym_in
) (cur_bfd
,
2671 ((char *) debug_info
->external_sym
2672 + (fh
->isymBase
+ 1) * external_sym_size
),
2674 if (strcmp (debug_info
->ss
+ fh
->issBase
+ sh
.iss
,
2676 processing_gcc_compilation
= 2;
2679 if (processing_gcc_compilation
!= 0)
2681 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
2684 const char *namestring
;
2686 (*swap_sym_in
) (cur_bfd
,
2687 (((char *) debug_info
->external_sym
)
2688 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
2690 type_code
= ECOFF_UNMARK_STAB (sh
.index
);
2691 if (!ECOFF_IS_STAB (&sh
))
2693 if (sh
.st
== stProc
|| sh
.st
== stStaticProc
)
2698 if (sh
.st
== stStaticProc
)
2700 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2701 record_minimal_symbol (reader
, namestring
, sh
.value
,
2702 mst_file_text
, sh
.sc
,
2705 procaddr
= sh
.value
;
2707 isym
= AUX_GET_ISYM (fh
->fBigendian
,
2708 (debug_info
->external_aux
2711 (*swap_sym_in
) (cur_bfd
,
2712 ((char *) debug_info
->external_sym
2713 + ((fh
->isymBase
+ isym
- 1)
2714 * external_sym_size
)),
2718 CORE_ADDR high
= procaddr
+ sh
.value
;
2720 /* Kludge for Irix 5.2 zero fh->adr. */
2722 && (!pst
->text_low_valid
2723 || procaddr
< pst
->raw_text_low ()))
2724 pst
->set_text_low (procaddr
);
2725 if (high
> pst
->raw_text_high ())
2726 pst
->set_text_high (high
);
2729 else if (sh
.st
== stStatic
)
2744 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2745 record_minimal_symbol (reader
, namestring
, sh
.value
,
2746 mst_file_data
, sh
.sc
,
2751 /* FIXME! Shouldn't this use cases for bss,
2752 then have the default be abs? */
2753 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2754 record_minimal_symbol (reader
, namestring
, sh
.value
,
2755 mst_file_bss
, sh
.sc
,
2762 /* Handle stabs continuation. */
2764 char *stabstring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2765 /* If we need to heap-allocate STABSTRING, this owns
2767 gdb::unique_xmalloc_ptr
<char> stabstring_storage
;
2768 int len
= strlen (stabstring
);
2770 while (stabstring
[len
- 1] == '\\')
2773 char *stabstring1
= stabstring
;
2777 /* Ignore continuation char from 1st string. */
2780 /* Read next stabstring. */
2782 (*swap_sym_in
) (cur_bfd
,
2783 (((char *) debug_info
->external_sym
)
2784 + (fh
->isymBase
+ cur_sdx
)
2785 * external_sym_size
),
2787 stabstring2
= debug_info
->ss
+ fh
->issBase
+ sh2
.iss
;
2788 len2
= strlen (stabstring2
);
2790 /* Concatenate stabstring2 with stabstring1. */
2791 if (stabstring_storage
!= nullptr)
2793 stabstring_storage
.reset
2794 ((char *) xrealloc (stabstring_storage
.release (),
2796 stabstring
= stabstring_storage
.get ();
2800 stabstring_storage
.reset
2801 ((char *) xmalloc (len
+ len2
+ 1));
2802 stabstring
= stabstring_storage
.get ();
2803 strcpy (stabstring
, stabstring1
);
2805 strcpy (stabstring
+ len
, stabstring2
);
2813 /* Standard, external, non-debugger, symbols. */
2815 case N_TEXT
| N_EXT
:
2816 case N_NBTEXT
| N_EXT
:
2819 case N_DATA
| N_EXT
:
2820 case N_NBDATA
| N_EXT
:
2825 case N_NBBSS
| N_EXT
:
2826 case N_SETV
| N_EXT
: /* FIXME, is this in BSS? */
2833 /* Standard, local, non-debugger, symbols. */
2837 /* We need to be able to deal with both N_FN or
2838 N_TEXT, because we have no way of knowing
2839 whether the sys-supplied ld or GNU ld was used
2840 to make the executable. Sequents throw in
2841 another wrinkle -- they renumbered N_FN. */
2851 case N_UNDF
| N_EXT
:
2852 continue; /* Just undefined, not COMMON. */
2857 /* Lots of symbol types we can just ignore. */
2864 /* Keep going . . . */
2867 * Special symbol types for GNU
2870 case N_INDR
| N_EXT
:
2872 case N_SETA
| N_EXT
:
2874 case N_SETT
| N_EXT
:
2876 case N_SETD
| N_EXT
:
2878 case N_SETB
| N_EXT
:
2888 static int prev_so_symnum
= -10;
2889 const char *basename
;
2891 /* A zero value is probably an indication for the
2892 SunPRO 3.0 compiler. dbx_end_psymtab explicitly tests
2893 for zero, so don't relocate it. */
2896 && gdbarch_sofun_address_maybe_missing (gdbarch
))
2897 textlow_not_set
= 1;
2899 textlow_not_set
= 0;
2901 if (prev_so_symnum
!= symnum
- 1)
2902 { /* Here if prev stab wasn't N_SO. */
2905 pst
= (struct partial_symtab
*) 0;
2907 dependencies_used
= 0;
2911 prev_so_symnum
= symnum
;
2913 /* End the current partial symtab and start a
2916 /* SET_NAMESTRING ();*/
2917 namestring
= stabstring
;
2919 /* Null name means end of .o file. Don't start a new
2921 if (*namestring
== '\000')
2924 /* Some compilers (including gcc) emit a pair of
2925 initial N_SOs. The first one is a directory name;
2926 the second the file name. If pst exists, is
2927 empty, and has a filename ending in '/', we assume
2928 the previous N_SO was a directory name. */
2929 basename
= lbasename (namestring
);
2930 if (basename
!= namestring
&& *basename
== '\000')
2931 continue; /* Simply ignore directory
2934 /* Some other compilers (C++ ones in particular) emit
2935 useless SOs for non-existant .c files. We ignore
2936 all subsequent SOs that immediately follow the
2949 enum language tmp_language
;
2951 /* Mark down an include file in the current psymtab. */
2953 /* SET_NAMESTRING (); */
2954 namestring
= stabstring
;
2957 = deduce_language_from_filename (namestring
);
2959 /* Only change the psymtab's language if we've
2960 learned something useful (eg. tmp_language is not
2961 language_unknown). In addition, to match what
2962 start_subfile does, never change from C++ to
2964 if (tmp_language
!= language_unknown
2965 && (tmp_language
!= language_c
2966 || psymtab_language
!= language_cplus
))
2967 psymtab_language
= tmp_language
;
2969 /* In C++, one may expect the same filename to come
2970 round many times, when code is coming alternately
2971 from the main file and from inline functions in
2972 other files. So I check to see if this is a file
2973 we've seen before -- either the main source file,
2974 or a previously included file.
2976 This seems to be a lot of time to be spending on
2977 N_SOL, but things like "break c-exp.y:435" need to
2978 work (I suppose the psymtab_include_list could be
2979 hashed or put in a binary tree, if profiling shows
2980 this is a major hog). */
2981 if (pst
&& filename_cmp (namestring
, pst
->filename
) == 0)
2987 for (i
= 0; i
< includes_used
; i
++)
2988 if (filename_cmp (namestring
,
2989 psymtab_include_list
[i
]) == 0)
2998 psymtab_include_list
[includes_used
++] = namestring
;
2999 if (includes_used
>= includes_allocated
)
3001 const char **orig
= psymtab_include_list
;
3003 psymtab_include_list
= (const char **)
3004 alloca ((includes_allocated
*= 2) *
3005 sizeof (const char *));
3006 memcpy (psymtab_include_list
, orig
,
3007 includes_used
* sizeof (const char *));
3011 case N_LSYM
: /* Typedef or automatic variable. */
3012 case N_STSYM
: /* Data seg var -- static */
3013 case N_LCSYM
: /* BSS " */
3014 case N_ROSYM
: /* Read-only data seg var -- static. */
3015 case N_NBSTS
: /* Gould nobase. */
3016 case N_NBLCS
: /* symbols. */
3018 case N_GSYM
: /* Global (extern) variable; can be
3019 data or bss (sigh FIXME). */
3021 /* Following may probably be ignored; I'll leave them here
3022 for now (until I do Pascal and Modula 2 extensions). */
3024 case N_PC
: /* I may or may not need this; I
3026 case N_M2C
: /* I suspect that I can ignore this
3028 case N_SCOPE
: /* Same. */
3030 /* SET_NAMESTRING (); */
3031 namestring
= stabstring
;
3032 p
= (char *) strchr (namestring
, ':');
3034 continue; /* Not a debugging symbol. */
3038 /* Main processing section for debugging symbols which
3039 the initial read through the symbol tables needs to
3040 worry about. If we reach this point, the symbol
3041 which we are considering is definitely one we are
3042 interested in. p must also contain the (valid)
3043 index into the namestring which indicates the
3044 debugging type symbol. */
3049 if (gdbarch_static_transform_name_p (gdbarch
))
3050 namestring
= gdbarch_static_transform_name
3051 (gdbarch
, namestring
);
3053 add_psymbol_to_list (gdb::string_view (namestring
,
3055 true, VAR_DOMAIN
, LOC_STATIC
,
3056 SECT_OFF_DATA (objfile
),
3057 psymbol_placement::STATIC
,
3059 psymtab_language
, objfile
);
3062 /* The addresses in these entries are reported
3063 to be wrong. See the code that reads 'G's
3065 add_psymbol_to_list (gdb::string_view (namestring
,
3067 true, VAR_DOMAIN
, LOC_STATIC
,
3068 SECT_OFF_DATA (objfile
),
3069 psymbol_placement::GLOBAL
,
3071 psymtab_language
, objfile
);
3075 /* When a 'T' entry is defining an anonymous enum, it
3076 may have a name which is the empty string, or a
3077 single space. Since they're not really defining a
3078 symbol, those shouldn't go in the partial symbol
3079 table. We do pick up the elements of such enums at
3080 'check_enum:', below. */
3081 if (p
>= namestring
+ 2
3082 || (p
== namestring
+ 1
3083 && namestring
[0] != ' '))
3086 (gdb::string_view (namestring
, p
- namestring
),
3087 true, STRUCT_DOMAIN
, LOC_TYPEDEF
, -1,
3088 psymbol_placement::STATIC
, 0, psymtab_language
,
3092 /* Also a typedef with the same name. */
3094 (gdb::string_view (namestring
,
3096 true, VAR_DOMAIN
, LOC_TYPEDEF
, -1,
3097 psymbol_placement::STATIC
, 0,
3098 psymtab_language
, objfile
);
3104 if (p
!= namestring
) /* a name is there, not
3108 (gdb::string_view (namestring
,
3110 true, VAR_DOMAIN
, LOC_TYPEDEF
, -1,
3111 psymbol_placement::STATIC
, 0, psymtab_language
,
3115 /* If this is an enumerated type, we need to add
3116 all the enum constants to the partial symbol
3117 table. This does not cover enums without names,
3118 e.g. "enum {a, b} c;" in C, but fortunately
3119 those are rare. There is no way for GDB to find
3120 those from the enum type without spending too
3121 much time on it. Thus to solve this problem,
3122 the compiler needs to put out the enum in a
3123 nameless type. GCC2 does this. */
3125 /* We are looking for something of the form
3126 <name> ":" ("t" | "T") [<number> "="] "e"
3127 {<constant> ":" <value> ","} ";". */
3129 /* Skip over the colon and the 't' or 'T'. */
3131 /* This type may be given a number. Also, numbers
3132 can come in pairs like (0,26). Skip over it. */
3133 while ((*p
>= '0' && *p
<= '9')
3134 || *p
== '(' || *p
== ',' || *p
== ')'
3140 /* The aix4 compiler emits extra crud before
3144 /* Skip over the type (?). */
3148 /* Skip over the colon. */
3152 /* We have found an enumerated type. */
3153 /* According to comments in read_enum_type
3154 a comma could end it instead of a semicolon.
3155 I don't know where that happens.
3157 while (*p
&& *p
!= ';' && *p
!= ',')
3161 /* Check for and handle cretinous dbx
3162 symbol name continuation! */
3163 if (*p
== '\\' || (*p
== '?' && p
[1] == '\0'))
3164 p
= next_symbol_text (objfile
);
3166 /* Point to the character after the name
3167 of the enum constant. */
3168 for (q
= p
; *q
&& *q
!= ':'; q
++)
3170 /* Note that the value doesn't matter for
3171 enum constants in psymtabs, just in
3173 add_psymbol_to_list (gdb::string_view (p
,
3177 psymbol_placement::STATIC
,
3178 0, psymtab_language
,
3180 /* Point past the name. */
3182 /* Skip over the value. */
3183 while (*p
&& *p
!= ',')
3185 /* Advance past the comma. */
3192 /* Constant, e.g. from "const" in Pascal. */
3193 add_psymbol_to_list (gdb::string_view (namestring
,
3195 true, VAR_DOMAIN
, LOC_CONST
, -1,
3196 psymbol_placement::STATIC
,
3197 0, psymtab_language
, objfile
);
3203 std::string
copy (namestring
, p
);
3204 function_outside_compilation_unit_complaint
3207 add_psymbol_to_list (gdb::string_view (namestring
,
3209 true, VAR_DOMAIN
, LOC_BLOCK
,
3210 SECT_OFF_TEXT (objfile
),
3211 psymbol_placement::STATIC
,
3213 psymtab_language
, objfile
);
3216 /* Global functions were ignored here, but now they
3217 are put into the global psymtab like one would
3218 expect. They're also in the minimal symbol
3223 std::string
copy (namestring
, p
);
3224 function_outside_compilation_unit_complaint
3227 add_psymbol_to_list (gdb::string_view (namestring
,
3229 true, VAR_DOMAIN
, LOC_BLOCK
,
3230 SECT_OFF_TEXT (objfile
),
3231 psymbol_placement::GLOBAL
,
3233 psymtab_language
, objfile
);
3236 /* Two things show up here (hopefully); static
3237 symbols of local scope (static used inside
3238 braces) or extensions of structure symbols. We
3253 case '#': /* For symbol identification (used
3258 /* It is a C++ nested symbol. We don't need to
3259 record it (I don't think); if we try to look up
3260 foo::bar::baz, then symbols for the symtab
3261 containing foo should get read in, I think. */
3262 /* Someone says sun cc puts out symbols like
3263 /foo/baz/maclib::/usr/local/bin/maclib,
3264 which would get here with a symbol type of ':'. */
3268 /* Unexpected symbol descriptor. The second and
3269 subsequent stabs of a continued stab can show up
3270 here. The question is whether they ever can
3271 mimic a normal stab--it would be nice if not,
3272 since we certainly don't want to spend the time
3273 searching to the end of every string looking for
3276 complaint (_("unknown symbol descriptor `%c'"), p
[1]);
3278 /* Ignore it; perhaps it is an extension that we don't
3287 /* Solaris 2 end of module, finish current partial
3288 symbol table. dbx_end_psymtab will set the
3289 high text address of PST to the proper value,
3290 which is necessary if a module compiled without
3291 debugging info follows this module. */
3293 && gdbarch_sofun_address_maybe_missing (gdbarch
))
3295 pst
= (struct partial_symtab
*) 0;
3297 dependencies_used
= 0;
3302 if (sh
.value
> save_pst
->raw_text_high ())
3303 save_pst
->set_text_high (sh
.value
);
3308 case N_SSYM
: /* Claim: Structure or union
3309 element. Hopefully, I can
3311 case N_ENTRY
: /* Alternate entry point; can
3313 case N_MAIN
: /* Can definitely ignore this. */
3314 case N_CATCH
: /* These are GNU C++ extensions. */
3315 case N_EHDECL
: /* that can safely be ignored here. */
3325 case N_NSYMS
: /* Ultrix 4.0: symbol count */
3326 case N_DEFD
: /* GNU Modula-2 */
3327 case N_ALIAS
: /* SunPro F77: alias name, ignore
3330 case N_OBJ
: /* Useless types from Solaris. */
3332 /* These symbols aren't interesting; don't worry about
3338 /* If we haven't found it yet, ignore it. It's
3339 probably some new type we don't know about yet. */
3340 complaint (_("unknown symbol type %s"),
3341 hex_string (type_code
)); /* CUR_SYMBOL_TYPE */
3345 /* end - Handle continuation */
3350 for (cur_sdx
= 0; cur_sdx
< fh
->csym
;)
3353 enum address_class theclass
;
3354 CORE_ADDR minsym_value
;
3357 (*swap_sym_in
) (cur_bfd
,
3358 ((char *) debug_info
->external_sym
3359 + ((fh
->isymBase
+ cur_sdx
)
3360 * external_sym_size
)),
3363 if (ECOFF_IS_STAB (&sh
))
3369 /* Non absolute static symbols go into the minimal table. */
3370 if (SC_IS_UNDEF (sh
.sc
) || sh
.sc
== scNil
3371 || (sh
.index
== indexNil
3372 && (sh
.st
!= stStatic
|| sh
.sc
== scAbs
)))
3374 /* FIXME, premature? */
3379 sym_name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3381 minsym_value
= sh
.value
;
3387 /* The value of a stEnd symbol is the displacement from the
3388 corresponding start symbol value, do not relocate it. */
3390 section
= SECT_OFF_TEXT (objfile
);
3397 section
= SECT_OFF_DATA (objfile
);
3401 section
= SECT_OFF_BSS (objfile
);
3412 reader
.record_with_info (sym_name
, minsym_value
,
3414 SECT_OFF_TEXT (objfile
));
3419 /* Ignore all parameter symbol records. */
3420 if (sh
.index
>= hdr
->iauxMax
)
3422 /* Should not happen, but does when cross-compiling
3423 with the MIPS compiler. FIXME -- pull later. */
3424 index_complaint (sym_name
);
3425 new_sdx
= cur_sdx
+ 1; /* Don't skip at all. */
3428 new_sdx
= AUX_GET_ISYM (fh
->fBigendian
,
3429 (debug_info
->external_aux
3433 if (new_sdx
<= cur_sdx
)
3435 /* This should not happen either... FIXME. */
3436 complaint (_("bad proc end in aux found from symbol %s"),
3438 new_sdx
= cur_sdx
+ 1; /* Don't skip backward. */
3441 /* For stProc symbol records, we need to check the
3442 storage class as well, as only (stProc, scText)
3443 entries represent "real" procedures - See the
3444 Compaq document titled "Object File / Symbol Table
3445 Format Specification" for more information. If the
3446 storage class is not scText, we discard the whole
3447 block of symbol records for this stProc. */
3448 if (sh
.st
== stProc
&& sh
.sc
!= scText
)
3451 /* Usually there is a local and a global stProc symbol
3452 for a function. This means that the function name
3453 has already been entered into the minimal symbol table
3454 while processing the global symbols in pass 2 above.
3455 One notable exception is the PROGRAM name from
3456 f77 compiled executables, it is only put out as
3457 local stProc symbol, and a global MAIN__ stProc symbol
3458 points to it. It doesn't matter though, as gdb is
3459 still able to find the PROGRAM name via the partial
3460 symbol table, and the MAIN__ symbol via the minimal
3462 if (sh
.st
== stProc
)
3463 add_psymbol_to_list (sym_name
, true,
3464 VAR_DOMAIN
, LOC_BLOCK
,
3466 psymbol_placement::GLOBAL
,
3467 sh
.value
, psymtab_language
, objfile
);
3469 add_psymbol_to_list (sym_name
, true,
3470 VAR_DOMAIN
, LOC_BLOCK
,
3472 psymbol_placement::STATIC
,
3473 sh
.value
, psymtab_language
, objfile
);
3475 procaddr
= sh
.value
;
3478 (*swap_sym_in
) (cur_bfd
,
3479 ((char *) debug_info
->external_sym
3480 + ((fh
->isymBase
+ cur_sdx
- 1)
3481 * external_sym_size
)),
3486 /* Kludge for Irix 5.2 zero fh->adr. */
3488 && (!pst
->text_low_valid
3489 || procaddr
< pst
->raw_text_low ()))
3490 pst
->set_text_low (procaddr
);
3492 high
= procaddr
+ sh
.value
;
3493 if (high
> pst
->raw_text_high ())
3494 pst
->set_text_high (high
);
3497 case stStatic
: /* Variable */
3498 if (SC_IS_DATA (sh
.sc
))
3499 reader
.record_with_info (sym_name
, minsym_value
,
3501 SECT_OFF_DATA (objfile
));
3503 reader
.record_with_info (sym_name
, minsym_value
,
3505 SECT_OFF_BSS (objfile
));
3506 theclass
= LOC_STATIC
;
3509 case stIndirect
: /* Irix5 forward declaration */
3510 /* Skip forward declarations from Irix5 cc. */
3513 case stTypedef
: /* Typedef */
3514 /* Skip typedefs for forward declarations and opaque
3515 structs from alpha and mips cc. */
3516 if (sh
.iss
== 0 || has_opaque_xref (fh
, &sh
))
3518 theclass
= LOC_TYPEDEF
;
3521 case stConstant
: /* Constant decl */
3522 theclass
= LOC_CONST
;
3528 case stBlock
: /* { }, str, un, enum */
3529 /* Do not create a partial symbol for cc unnamed aggregates
3530 and gcc empty aggregates. */
3531 if ((sh
.sc
== scInfo
3532 || SC_IS_COMMON (sh
.sc
))
3534 && sh
.index
!= cur_sdx
+ 2)
3536 add_psymbol_to_list (sym_name
, true,
3537 STRUCT_DOMAIN
, LOC_TYPEDEF
, -1,
3538 psymbol_placement::STATIC
,
3539 0, psymtab_language
, objfile
);
3541 handle_psymbol_enumerators (objfile
, fh
, sh
.st
, sh
.value
);
3543 /* Skip over the block. */
3545 if (new_sdx
<= cur_sdx
)
3547 /* This happens with the Ultrix kernel. */
3548 complaint (_("bad aux index at block symbol %s"),
3550 new_sdx
= cur_sdx
+ 1; /* Don't skip backward. */
3555 case stFile
: /* File headers */
3556 case stLabel
: /* Labels */
3557 case stEnd
: /* Ends of files */
3560 case stLocal
: /* Local variables */
3561 /* Normally these are skipped because we skip over
3562 all blocks we see. However, these can occur
3563 as visible symbols in a .h file that contains code. */
3567 /* Both complaints are valid: one gives symbol sym_name,
3568 the other the offending symbol type. */
3569 complaint (_("unknown local symbol %s"),
3571 complaint (_("with type %d"), sh
.st
);
3575 /* Use this gdb symbol. */
3576 add_psymbol_to_list (sym_name
, true,
3577 VAR_DOMAIN
, theclass
, section
,
3578 psymbol_placement::STATIC
,
3579 sh
.value
, psymtab_language
, objfile
);
3581 cur_sdx
++; /* Go to next file symbol. */
3584 /* Now do enter the external symbols. */
3585 ext_ptr
= &extern_tab
[fdr_to_pst
[f_idx
].globals_offset
];
3586 cur_sdx
= fdr_to_pst
[f_idx
].n_globals
;
3587 PST_PRIVATE (save_pst
)->extern_count
= cur_sdx
;
3588 PST_PRIVATE (save_pst
)->extern_tab
= ext_ptr
;
3589 for (; --cur_sdx
>= 0; ext_ptr
++)
3591 enum address_class theclass
;
3596 if (ext_ptr
->ifd
!= f_idx
)
3597 internal_error (__FILE__
, __LINE__
,
3598 _("failed internal consistency check"));
3599 psh
= &ext_ptr
->asym
;
3601 /* Do not add undefined symbols to the partial symbol table. */
3602 if (SC_IS_UNDEF (psh
->sc
) || psh
->sc
== scNil
)
3605 svalue
= psh
->value
;
3611 section
= SECT_OFF_TEXT (objfile
);
3618 section
= SECT_OFF_DATA (objfile
);
3622 section
= SECT_OFF_BSS (objfile
);
3629 /* These are generated for static symbols in .o files,
3634 /* External procedure symbols have been entered
3635 into the minimal symbol table in pass 2 above.
3636 Ignore them, as parse_external will ignore them too. */
3639 theclass
= LOC_LABEL
;
3642 unknown_ext_complaint (debug_info
->ssext
+ psh
->iss
);
3643 /* Pretend it's global. */
3646 /* Global common symbols are resolved by the runtime loader,
3648 if (SC_IS_COMMON (psh
->sc
))
3651 theclass
= LOC_STATIC
;
3654 char *sym_name
= debug_info
->ssext
+ psh
->iss
;
3655 add_psymbol_to_list (sym_name
, true,
3656 VAR_DOMAIN
, theclass
,
3658 psymbol_placement::GLOBAL
,
3659 svalue
, psymtab_language
, objfile
);
3663 /* Link pst to FDR. dbx_end_psymtab returns NULL if the psymtab was
3664 empty and put on the free list. */
3665 fdr_to_pst
[f_idx
].pst
3666 = dbx_end_psymtab (objfile
, save_pst
,
3667 psymtab_include_list
, includes_used
,
3668 -1, save_pst
->raw_text_high (),
3669 dependency_list
, dependencies_used
,
3672 dependencies_used
= 0;
3674 /* The objfile has its functions reordered if this partial symbol
3675 table overlaps any other partial symbol table.
3676 We cannot assume a reordered objfile if a partial symbol table
3677 is contained within another partial symbol table, as partial symbol
3678 tables for include files with executable code are contained
3679 within the partial symbol table for the including source file,
3680 and we do not want to flag the objfile reordered for these cases.
3682 This strategy works well for Irix-5.2 shared libraries, but we
3683 might have to use a more elaborate (and slower) algorithm for
3685 save_pst
= fdr_to_pst
[f_idx
].pst
;
3686 if (save_pst
!= NULL
3687 && save_pst
->text_low_valid
3688 && !(objfile
->flags
& OBJF_REORDERED
))
3690 for (partial_symtab
*iter
: objfile
->psymtabs ())
3692 if (save_pst
!= iter
3693 && save_pst
->raw_text_low () >= iter
->raw_text_low ()
3694 && save_pst
->raw_text_low () < iter
->raw_text_high ()
3695 && save_pst
->raw_text_high () > iter
->raw_text_high ())
3697 objfile
->flags
|= OBJF_REORDERED
;
3704 /* Now scan the FDRs for dependencies. */
3705 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
3707 fh
= f_idx
+ debug_info
->fdr
;
3708 pst
= fdr_to_pst
[f_idx
].pst
;
3713 /* This should catch stabs-in-ecoff. */
3717 /* Skip the first file indirect entry as it is a self dependency for
3718 source files or a reverse .h -> .c dependency for header files. */
3719 pst
->number_of_dependencies
= 0;
3721 = objfile
->partial_symtabs
->allocate_dependencies (fh
->crfd
- 1);
3722 for (s_idx
= 1; s_idx
< fh
->crfd
; s_idx
++)
3726 (*swap_rfd_in
) (cur_bfd
,
3727 ((char *) debug_info
->external_rfd
3728 + (fh
->rfdBase
+ s_idx
) * external_rfd_size
),
3730 if (rh
< 0 || rh
>= hdr
->ifdMax
)
3732 complaint (_("bad file number %ld"), rh
);
3736 /* Skip self dependencies of header files. */
3740 /* Do not add to dependency list if psymtab was empty. */
3741 if (fdr_to_pst
[rh
].pst
== NULL
)
3743 pst
->dependencies
[pst
->number_of_dependencies
++]
3744 = fdr_to_pst
[rh
].pst
;
3748 /* Remove the dummy psymtab created for -O3 images above, if it is
3749 still empty, to enable the detection of stripped executables. */
3750 pst
= objfile
->partial_symtabs
->psymtabs
;
3751 if (pst
->next
== NULL
3752 && pst
->number_of_dependencies
== 0
3753 && pst
->n_global_syms
== 0
3754 && pst
->n_static_syms
== 0)
3755 objfile
->partial_symtabs
->psymtabs
= NULL
;
3758 /* If the current psymbol has an enumerated type, we need to add
3759 all the enum constants to the partial symbol table. */
3762 handle_psymbol_enumerators (struct objfile
*objfile
, FDR
*fh
, int stype
,
3765 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
3766 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
3767 char *ext_sym
= ((char *) debug_info
->external_sym
3768 + ((fh
->isymBase
+ cur_sdx
+ 1) * external_sym_size
));
3778 /* It is an enumerated type if the next symbol entry is a stMember
3779 and its auxiliary index is indexNil or its auxiliary entry
3780 is a plain btNil or btVoid.
3781 Alpha cc -migrate enums are recognized by a zero index and
3782 a zero symbol value.
3783 DU 4.0 cc enums are recognized by a member type of btEnum without
3784 qualifiers and a zero symbol value. */
3785 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3786 if (sh
.st
!= stMember
)
3789 if (sh
.index
== indexNil
3790 || (sh
.index
== 0 && svalue
== 0))
3792 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
,
3793 &(debug_info
->external_aux
3794 + fh
->iauxBase
+ sh
.index
)->a_ti
,
3796 if ((tir
.bt
!= btNil
3798 && (tir
.bt
!= btEnum
|| svalue
!= 0))
3799 || tir
.tq0
!= tqNil
)
3811 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3812 if (sh
.st
!= stMember
)
3814 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3816 /* Note that the value doesn't matter for enum constants
3817 in psymtabs, just in symtabs. */
3818 add_psymbol_to_list (name
, true,
3819 VAR_DOMAIN
, LOC_CONST
, -1,
3820 psymbol_placement::STATIC
, 0,
3821 psymtab_language
, objfile
);
3822 ext_sym
+= external_sym_size
;
3826 /* Get the next symbol. OBJFILE is unused. */
3829 mdebug_next_symbol_text (struct objfile
*objfile
)
3834 (*debug_swap
->swap_sym_in
) (cur_bfd
,
3835 ((char *) debug_info
->external_sym
3836 + ((cur_fdr
->isymBase
+ cur_sdx
)
3837 * debug_swap
->external_sym_size
)),
3839 return debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3842 /* Ancillary function to psymtab_to_symtab(). Does all the work
3843 for turning the partial symtab PST into a symtab, recurring
3844 first on all dependent psymtabs. The argument FILENAME is
3845 only passed so we can see in debug stack traces what file
3848 This function has a split personality, based on whether the
3849 symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
3850 The flow of control and even the memory allocation differs. FIXME. */
3853 psymtab_to_symtab_1 (struct objfile
*objfile
,
3854 struct partial_symtab
*pst
, const char *filename
)
3856 bfd_size_type external_sym_size
;
3857 bfd_size_type external_pdr_size
;
3858 void (*swap_sym_in
) (bfd
*, void *, SYMR
*);
3859 void (*swap_pdr_in
) (bfd
*, void *, PDR
*);
3861 struct compunit_symtab
*cust
= NULL
;
3863 struct linetable
*lines
;
3864 CORE_ADDR lowest_pdr_addr
= 0;
3865 int last_symtab_ended
= 0;
3866 struct section_offsets
*section_offsets
= objfile
->section_offsets
;
3872 /* Read in all partial symtabs on which this one is dependent.
3873 NOTE that we do have circular dependencies, sigh. We solved
3874 that by setting pst->readin before this point. */
3876 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
3877 if (!pst
->dependencies
[i
]->readin
)
3879 /* Inform about additional files to be read in. */
3882 fputs_filtered (" ", gdb_stdout
);
3884 fputs_filtered ("and ", gdb_stdout
);
3886 printf_filtered ("%s...",
3887 pst
->dependencies
[i
]->filename
);
3888 wrap_here (""); /* Flush output */
3889 gdb_flush (gdb_stdout
);
3891 /* We only pass the filename for debug purposes. */
3892 psymtab_to_symtab_1 (objfile
, pst
->dependencies
[i
],
3893 pst
->dependencies
[i
]->filename
);
3896 /* Do nothing if this is a dummy psymtab. */
3898 if (pst
->n_global_syms
== 0 && pst
->n_static_syms
== 0
3899 && !pst
->text_low_valid
&& !pst
->text_high_valid
)
3902 /* Now read the symbols for this symtab. */
3904 cur_bfd
= CUR_BFD (pst
);
3905 debug_swap
= DEBUG_SWAP (pst
);
3906 debug_info
= DEBUG_INFO (pst
);
3907 pending_list
= PENDING_LIST (pst
);
3908 external_sym_size
= debug_swap
->external_sym_size
;
3909 external_pdr_size
= debug_swap
->external_pdr_size
;
3910 swap_sym_in
= debug_swap
->swap_sym_in
;
3911 swap_pdr_in
= debug_swap
->swap_pdr_in
;
3912 mdebugread_objfile
= objfile
;
3913 cur_fd
= FDR_IDX (pst
);
3914 fh
= ((cur_fd
== -1)
3916 : debug_info
->fdr
+ cur_fd
);
3919 /* See comment in parse_partial_symbols about the @stabs sentinel. */
3920 processing_gcc_compilation
= 0;
3921 if (fh
!= NULL
&& fh
->csym
>= 2)
3925 (*swap_sym_in
) (cur_bfd
,
3926 ((char *) debug_info
->external_sym
3927 + (fh
->isymBase
+ 1) * external_sym_size
),
3929 if (strcmp (debug_info
->ss
+ fh
->issBase
+ sh
.iss
,
3932 /* We indicate that this is a GCC compilation so that certain
3933 features will be enabled in stabsread/dbxread. */
3934 processing_gcc_compilation
= 2;
3938 if (processing_gcc_compilation
!= 0)
3940 struct gdbarch
*gdbarch
= get_objfile_arch (objfile
);
3942 /* This symbol table contains stabs-in-ecoff entries. */
3944 /* Parse local symbols first. */
3946 if (fh
->csym
<= 2) /* FIXME, this blows psymtab->symtab ptr. */
3948 mdebugread_objfile
= NULL
;
3951 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
3957 (*swap_sym_in
) (cur_bfd
,
3958 (((char *) debug_info
->external_sym
)
3959 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
3961 name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3963 /* XXX This is a hack. It will go away! */
3964 if (ECOFF_IS_STAB (&sh
) || (name
[0] == '#'))
3966 int type_code
= ECOFF_UNMARK_STAB (sh
.index
);
3967 enum language language
= PST_PRIVATE (pst
)->pst_language
;
3969 /* We should never get non N_STAB symbols here, but they
3970 should be harmless, so keep process_one_symbol from
3971 complaining about them. */
3972 if (type_code
& N_STAB
)
3974 /* If we found a trailing N_SO with no name, process
3975 it here instead of in process_one_symbol, so we
3976 can keep a handle to its symtab. The symtab
3977 would otherwise be ended twice, once in
3978 process_one_symbol, and once after this loop. */
3979 if (type_code
== N_SO
3980 && get_last_source_file ()
3981 && previous_stab_code
!= (unsigned char) N_SO
3984 valu
+= ANOFFSET (section_offsets
,
3985 SECT_OFF_TEXT (objfile
));
3986 previous_stab_code
= N_SO
;
3987 cust
= end_symtab (valu
, SECT_OFF_TEXT (objfile
));
3989 last_symtab_ended
= 1;
3993 last_symtab_ended
= 0;
3994 process_one_symbol (type_code
, 0, valu
, name
,
3995 section_offsets
, objfile
, language
);
3998 /* Similarly a hack. */
3999 else if (name
[0] == '#')
4001 process_one_symbol (N_SLINE
, 0, valu
, name
,
4002 section_offsets
, objfile
, language
);
4004 if (type_code
== N_FUN
)
4006 /* Make up special symbol to contain
4007 procedure specific info. */
4008 mdebug_extra_func_info
*e
4009 = OBSTACK_ZALLOC (&mdebugread_objfile
->objfile_obstack
,
4010 mdebug_extra_func_info
);
4011 struct symbol
*s
= new_symbol (MDEBUG_EFI_SYMBOL_NAME
);
4013 SYMBOL_DOMAIN (s
) = LABEL_DOMAIN
;
4014 SYMBOL_ACLASS_INDEX (s
) = LOC_CONST
;
4015 SYMBOL_TYPE (s
) = objfile_type (objfile
)->builtin_void
;
4016 SYMBOL_VALUE_BYTES (s
) = (gdb_byte
*) e
;
4017 e
->pdr
.framereg
= -1;
4018 add_symbol_to_list (s
, get_local_symbols ());
4021 else if (sh
.st
== stLabel
)
4023 if (sh
.index
== indexNil
)
4025 /* This is what the gcc2_compiled and __gnu_compiled_*
4026 show up as. So don't complain. */
4031 /* Handle encoded stab line number. */
4032 valu
+= ANOFFSET (section_offsets
,
4033 SECT_OFF_TEXT (objfile
));
4034 record_line (get_current_subfile (), sh
.index
,
4035 gdbarch_addr_bits_remove (gdbarch
, valu
));
4038 else if (sh
.st
== stProc
|| sh
.st
== stStaticProc
4039 || sh
.st
== stStatic
|| sh
.st
== stEnd
)
4040 /* These are generated by gcc-2.x, do not complain. */
4043 complaint (_("unknown stabs symbol %s"), name
);
4046 if (! last_symtab_ended
)
4048 cust
= end_symtab (pst
->raw_text_high (), SECT_OFF_TEXT (objfile
));
4052 /* There used to be a call to sort_blocks here, but this should not
4053 be necessary for stabs symtabs. And as sort_blocks modifies the
4054 start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
4055 it did the wrong thing if the first procedure in a file was
4056 generated via asm statements. */
4058 /* Fill in procedure info next. */
4066 gdb::def_vector
<PDR
> pr_block (fh
->cpd
);
4068 pdr_ptr
= ((char *) debug_info
->external_pdr
4069 + fh
->ipdFirst
* external_pdr_size
);
4070 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
4071 pdr_in
= pr_block
.data ();
4074 pdr_ptr
+= external_pdr_size
, pdr_in
++)
4076 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
4078 /* Determine lowest PDR address, the PDRs are not always
4080 if (pdr_in
== pr_block
.data ())
4081 lowest_pdr_addr
= pdr_in
->adr
;
4082 else if (pdr_in
->adr
< lowest_pdr_addr
)
4083 lowest_pdr_addr
= pdr_in
->adr
;
4086 pdr_in
= pr_block
.data ();
4087 pdr_in_end
= pdr_in
+ fh
->cpd
;
4088 for (; pdr_in
< pdr_in_end
; pdr_in
++)
4089 parse_procedure (pdr_in
, cust
, pst
);
4094 /* This symbol table contains ordinary ecoff entries. */
4102 cust
= new_symtab ("unknown", 0, objfile
);
4106 maxlines
= 2 * fh
->cline
;
4107 cust
= new_symtab (pst
->filename
, maxlines
, objfile
);
4109 /* The proper language was already determined when building
4110 the psymtab, use it. */
4111 COMPUNIT_FILETABS (cust
)->language
= PST_PRIVATE (pst
)->pst_language
;
4114 psymtab_language
= COMPUNIT_FILETABS (cust
)->language
;
4116 lines
= SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust
));
4118 /* Get a new lexical context. */
4120 push_parse_stack ();
4121 top_stack
->cur_st
= COMPUNIT_FILETABS (cust
);
4122 top_stack
->cur_block
4123 = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust
), STATIC_BLOCK
);
4124 BLOCK_START (top_stack
->cur_block
) = pst
->text_low (objfile
);
4125 BLOCK_END (top_stack
->cur_block
) = 0;
4126 top_stack
->blocktype
= stFile
;
4127 top_stack
->cur_type
= 0;
4128 top_stack
->procadr
= 0;
4129 top_stack
->numargs
= 0;
4130 found_ecoff_debugging_info
= 0;
4137 /* Parse local symbols first. */
4138 sym_ptr
= ((char *) debug_info
->external_sym
4139 + fh
->isymBase
* external_sym_size
);
4140 sym_end
= sym_ptr
+ fh
->csym
* external_sym_size
;
4141 while (sym_ptr
< sym_end
)
4146 (*swap_sym_in
) (cur_bfd
, sym_ptr
, &sh
);
4147 c
= parse_symbol (&sh
,
4148 debug_info
->external_aux
+ fh
->iauxBase
,
4149 sym_ptr
, fh
->fBigendian
,
4150 section_offsets
, objfile
);
4151 sym_ptr
+= c
* external_sym_size
;
4154 /* Linenumbers. At the end, check if we can save memory.
4155 parse_lines has to look ahead an arbitrary number of PDR
4156 structures, so we swap them all first. */
4164 gdb::def_vector
<PDR
> pr_block (fh
->cpd
);
4166 pdr_ptr
= ((char *) debug_info
->external_pdr
4167 + fh
->ipdFirst
* external_pdr_size
);
4168 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
4169 pdr_in
= pr_block
.data ();
4172 pdr_ptr
+= external_pdr_size
, pdr_in
++)
4174 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
4176 /* Determine lowest PDR address, the PDRs are not always
4178 if (pdr_in
== pr_block
.data ())
4179 lowest_pdr_addr
= pdr_in
->adr
;
4180 else if (pdr_in
->adr
< lowest_pdr_addr
)
4181 lowest_pdr_addr
= pdr_in
->adr
;
4184 parse_lines (fh
, pr_block
.data (), lines
, maxlines
,
4185 pst
->text_low (objfile
), lowest_pdr_addr
);
4186 if (lines
->nitems
< fh
->cline
)
4187 lines
= shrink_linetable (lines
);
4189 /* Fill in procedure info next. */
4190 pdr_in
= pr_block
.data ();
4191 pdr_in_end
= pdr_in
+ fh
->cpd
;
4192 for (; pdr_in
< pdr_in_end
; pdr_in
++)
4193 parse_procedure (pdr_in
, NULL
, pst
);
4197 size
= lines
->nitems
;
4200 SYMTAB_LINETABLE (COMPUNIT_FILETABS (cust
))
4201 = ((struct linetable
*)
4202 obstack_copy (&mdebugread_objfile
->objfile_obstack
,
4203 lines
, (sizeof (struct linetable
)
4204 + size
* sizeof (lines
->item
))));
4207 /* .. and our share of externals.
4208 XXX use the global list to speed up things here. How?
4209 FIXME, Maybe quit once we have found the right number of ext's? */
4210 top_stack
->cur_st
= COMPUNIT_FILETABS (cust
);
4211 top_stack
->cur_block
4212 = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (top_stack
->cur_st
),
4214 top_stack
->blocktype
= stFile
;
4216 ext_ptr
= PST_PRIVATE (pst
)->extern_tab
;
4217 for (i
= PST_PRIVATE (pst
)->extern_count
; --i
>= 0; ext_ptr
++)
4218 parse_external (ext_ptr
, fh
->fBigendian
,
4219 section_offsets
, objfile
);
4221 /* If there are undefined symbols, tell the user.
4222 The alpha has an undefined symbol for every symbol that is
4223 from a shared library, so tell the user only if verbose is on. */
4224 if (info_verbose
&& n_undef_symbols
)
4226 printf_filtered (_("File %s contains %d unresolved references:"),
4227 symtab_to_filename_for_display
4228 (COMPUNIT_FILETABS (cust
)),
4230 printf_filtered ("\n\t%4d variables\n\t%4d "
4231 "procedures\n\t%4d labels\n",
4232 n_undef_vars
, n_undef_procs
, n_undef_labels
);
4233 n_undef_symbols
= n_undef_labels
= n_undef_vars
= n_undef_procs
= 0;
4238 sort_blocks (COMPUNIT_FILETABS (cust
));
4241 /* Now link the psymtab and the symtab. */
4242 pst
->compunit_symtab
= cust
;
4244 mdebugread_objfile
= NULL
;
4247 /* Ancillary parsing procedures. */
4249 /* Return 1 if the symbol pointed to by SH has a cross reference
4250 to an opaque aggregate type, else 0. */
4253 has_opaque_xref (FDR
*fh
, SYMR
*sh
)
4260 if (sh
->index
== indexNil
)
4263 ax
= debug_info
->external_aux
+ fh
->iauxBase
+ sh
->index
;
4264 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
, &ax
->a_ti
, &tir
);
4265 if (tir
.bt
!= btStruct
&& tir
.bt
!= btUnion
&& tir
.bt
!= btEnum
)
4269 (*debug_swap
->swap_rndx_in
) (fh
->fBigendian
, &ax
->a_rndx
, rn
);
4270 if (rn
->rfd
== 0xfff)
4271 rf
= AUX_GET_ISYM (fh
->fBigendian
, ax
+ 1);
4279 /* Lookup the type at relative index RN. Return it in TPP
4280 if found and in any event come up with its name PNAME.
4281 BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
4282 Return value says how many aux symbols we ate. */
4285 cross_ref (int fd
, union aux_ext
*ax
, struct type
**tpp
,
4286 enum type_code type_code
,
4287 /* Use to alloc new type if none is found. */
4288 const char **pname
, int bigend
, const char *sym_name
)
4297 struct mdebug_pending
*pend
;
4301 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
4303 /* Escape index means 'the next one'. */
4304 if (rn
->rfd
== 0xfff)
4307 rf
= AUX_GET_ISYM (bigend
, ax
+ 1);
4314 /* mips cc uses a rf of -1 for opaque struct definitions.
4315 Set TYPE_STUB for these types so that check_typedef will
4316 resolve them if the struct gets defined in another compilation unit. */
4319 *pname
= "<undefined>";
4320 *tpp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
4321 TYPE_STUB (*tpp
) = 1;
4325 /* mips cc uses an escaped rn->index of 0 for struct return types
4326 of procedures that were compiled without -g. These will always remain
4328 if (rn
->rfd
== 0xfff && rn
->index
== 0)
4330 *pname
= "<undefined>";
4334 /* Find the relative file descriptor and the symbol in it. */
4335 fh
= get_rfd (fd
, rf
);
4336 xref_fd
= fh
- debug_info
->fdr
;
4338 if (rn
->index
>= fh
->csym
)
4340 /* File indirect entry is corrupt. */
4341 *pname
= "<illegal>";
4342 bad_rfd_entry_complaint (sym_name
, xref_fd
, rn
->index
);
4346 /* If we have processed this symbol then we left a forwarding
4347 pointer to the type in the pending list. If not, we`ll put
4348 it in a list of pending types, to be processed later when
4349 the file will be. In any event, we collect the name for the
4352 esh
= ((char *) debug_info
->external_sym
4353 + ((fh
->isymBase
+ rn
->index
)
4354 * debug_swap
->external_sym_size
));
4355 (*debug_swap
->swap_sym_in
) (cur_bfd
, esh
, &sh
);
4357 /* Make sure that this type of cross reference can be handled. */
4358 if ((sh
.sc
!= scInfo
4359 || (sh
.st
!= stBlock
&& sh
.st
!= stTypedef
&& sh
.st
!= stIndirect
4360 && sh
.st
!= stStruct
&& sh
.st
!= stUnion
4361 && sh
.st
!= stEnum
))
4362 && (sh
.st
!= stBlock
|| !SC_IS_COMMON (sh
.sc
)))
4364 /* File indirect entry is corrupt. */
4365 *pname
= "<illegal>";
4366 bad_rfd_entry_complaint (sym_name
, xref_fd
, rn
->index
);
4370 *pname
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
4372 pend
= is_pending_symbol (fh
, esh
);
4377 /* We have not yet seen this type. */
4379 if ((sh
.iss
== 0 && sh
.st
== stTypedef
) || sh
.st
== stIndirect
)
4383 /* alpha cc puts out a stTypedef with a sh.iss of zero for
4385 a) forward declarations of structs/unions/enums which are not
4386 defined in this compilation unit.
4387 For these the type will be void. This is a bad design decision
4388 as cross referencing across compilation units is impossible
4389 due to the missing name.
4390 b) forward declarations of structs/unions/enums/typedefs which
4391 are defined later in this file or in another file in the same
4392 compilation unit. Irix5 cc uses a stIndirect symbol for this.
4393 Simply cross reference those again to get the true type.
4394 The forward references are not entered in the pending list and
4395 in the symbol table. */
4397 (*debug_swap
->swap_tir_in
) (bigend
,
4398 &(debug_info
->external_aux
4399 + fh
->iauxBase
+ sh
.index
)->a_ti
,
4401 if (tir
.tq0
!= tqNil
)
4402 complaint (_("illegal tq0 in forward typedef for %s"), sym_name
);
4406 *tpp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
4407 *pname
= "<undefined>";
4414 (debug_info
->external_aux
4415 + fh
->iauxBase
+ sh
.index
+ 1),
4416 tpp
, type_code
, pname
,
4417 fh
->fBigendian
, sym_name
);
4421 /* Follow a forward typedef. This might recursively
4422 call cross_ref till we get a non typedef'ed type.
4423 FIXME: This is not correct behaviour, but gdb currently
4424 cannot handle typedefs without type copying. Type
4425 copying is impossible as we might have mutual forward
4426 references between two files and the copied type would not
4427 get filled in when we later parse its definition. */
4428 *tpp
= parse_type (xref_fd
,
4429 debug_info
->external_aux
+ fh
->iauxBase
,
4433 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
4434 add_pending (fh
, esh
, *tpp
);
4438 complaint (_("illegal bt %d in forward typedef for %s"), tir
.bt
,
4440 *tpp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
4445 else if (sh
.st
== stTypedef
)
4447 /* Parse the type for a normal typedef. This might recursively call
4448 cross_ref till we get a non typedef'ed type.
4449 FIXME: This is not correct behaviour, but gdb currently
4450 cannot handle typedefs without type copying. But type copying is
4451 impossible as we might have mutual forward references between
4452 two files and the copied type would not get filled in when
4453 we later parse its definition. */
4454 *tpp
= parse_type (xref_fd
,
4455 debug_info
->external_aux
+ fh
->iauxBase
,
4459 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
4463 /* Cross reference to a struct/union/enum which is defined
4464 in another file in the same compilation unit but that file
4465 has not been parsed yet.
4466 Initialize the type only, it will be filled in when
4467 it's definition is parsed. */
4468 *tpp
= init_type (mdebugread_objfile
, type_code
, 0, NULL
);
4470 add_pending (fh
, esh
, *tpp
);
4473 /* We used one auxent normally, two if we got a "next one" rf. */
4478 /* Quick&dirty lookup procedure, to avoid the MI ones that require
4479 keeping the symtab sorted. */
4481 static struct symbol
*
4482 mylookup_symbol (const char *name
, const struct block
*block
,
4483 domain_enum domain
, enum address_class theclass
)
4485 struct block_iterator iter
;
4490 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
4492 if (SYMBOL_LINKAGE_NAME (sym
)[0] == inc
4493 && SYMBOL_DOMAIN (sym
) == domain
4494 && SYMBOL_CLASS (sym
) == theclass
4495 && strcmp (SYMBOL_LINKAGE_NAME (sym
), name
) == 0)
4499 block
= BLOCK_SUPERBLOCK (block
);
4501 return mylookup_symbol (name
, block
, domain
, theclass
);
4506 /* Add a new symbol S to a block B. */
4509 add_symbol (struct symbol
*s
, struct symtab
*symtab
, struct block
*b
)
4511 symbol_set_symtab (s
, symtab
);
4512 mdict_add_symbol (BLOCK_MULTIDICT (b
), s
);
4515 /* Add a new block B to a symtab S. */
4518 add_block (struct block
*b
, struct symtab
*s
)
4520 /* Cast away "const", but that's ok because we're building the
4521 symtab and blockvector here. */
4522 struct blockvector
*bv
= (struct blockvector
*) SYMTAB_BLOCKVECTOR (s
);
4524 bv
= (struct blockvector
*) xrealloc ((void *) bv
,
4525 (sizeof (struct blockvector
)
4526 + BLOCKVECTOR_NBLOCKS (bv
)
4527 * sizeof (bv
->block
)));
4528 if (bv
!= SYMTAB_BLOCKVECTOR (s
))
4529 SYMTAB_BLOCKVECTOR (s
) = bv
;
4531 BLOCKVECTOR_BLOCK (bv
, BLOCKVECTOR_NBLOCKS (bv
)++) = b
;
4534 /* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
4535 MIPS' linenumber encoding might need more than one byte
4536 to describe it, LAST is used to detect these continuation lines.
4538 Combining lines with the same line number seems like a bad idea.
4539 E.g: There could be a line number entry with the same line number after the
4540 prologue and GDB should not ignore it (this is a better way to find
4541 a prologue than mips_skip_prologue).
4542 But due to the compressed line table format there are line number entries
4543 for the same line which are needed to bridge the gap to the next
4544 line number entry. These entries have a bogus address info with them
4545 and we are unable to tell them from intended duplicate line number
4547 This is another reason why -ggdb debugging format is preferable. */
4550 add_line (struct linetable
*lt
, int lineno
, CORE_ADDR adr
, int last
)
4552 /* DEC c89 sometimes produces zero linenos which confuse gdb.
4553 Change them to something sensible. */
4557 last
= -2; /* Make sure we record first line. */
4559 if (last
== lineno
) /* Skip continuation lines. */
4562 lt
->item
[lt
->nitems
].line
= lineno
;
4563 lt
->item
[lt
->nitems
++].pc
= adr
<< 2;
4567 /* Sorting and reordering procedures. */
4569 /* Blocks with a smaller low bound should come first. */
4572 block_is_less_than (const struct block
*b1
, const struct block
*b2
)
4574 CORE_ADDR start1
= BLOCK_START (b1
);
4575 CORE_ADDR start2
= BLOCK_START (b2
);
4577 if (start1
!= start2
)
4578 return start1
< start2
;
4580 return (BLOCK_END (b2
)) < (BLOCK_END (b1
));
4583 /* Sort the blocks of a symtab S.
4584 Reorder the blocks in the blockvector by code-address,
4585 as required by some MI search routines. */
4588 sort_blocks (struct symtab
*s
)
4590 /* We have to cast away const here, but this is ok because we're
4591 constructing the blockvector in this code. */
4592 struct blockvector
*bv
= (struct blockvector
*) SYMTAB_BLOCKVECTOR (s
);
4594 if (BLOCKVECTOR_NBLOCKS (bv
) <= FIRST_LOCAL_BLOCK
)
4597 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) == 0)
4598 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = 0;
4599 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) == 0)
4600 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) = 0;
4604 * This is very unfortunate: normally all functions are compiled in
4605 * the order they are found, but if the file is compiled -O3 things
4606 * are very different. It would be nice to find a reliable test
4607 * to detect -O3 images in advance.
4609 if (BLOCKVECTOR_NBLOCKS (bv
) > FIRST_LOCAL_BLOCK
+ 1)
4610 std::sort (&BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
),
4611 &BLOCKVECTOR_BLOCK (bv
, BLOCKVECTOR_NBLOCKS (bv
)),
4612 block_is_less_than
);
4616 int i
, j
= BLOCKVECTOR_NBLOCKS (bv
);
4618 for (i
= FIRST_LOCAL_BLOCK
; i
< j
; i
++)
4619 if (high
< BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
)))
4620 high
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
));
4621 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = high
;
4624 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) =
4625 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
));
4627 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4628 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4629 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4630 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4634 /* Constructor/restructor/destructor procedures. */
4636 /* Allocate a new symtab for NAME. Needs an estimate of how many
4637 linenumbers MAXLINES we'll put in it. */
4639 static struct compunit_symtab
*
4640 new_symtab (const char *name
, int maxlines
, struct objfile
*objfile
)
4642 struct compunit_symtab
*cust
= allocate_compunit_symtab (objfile
, name
);
4643 struct symtab
*symtab
;
4644 struct blockvector
*bv
;
4647 add_compunit_symtab_to_objfile (cust
);
4648 symtab
= allocate_symtab (cust
, name
);
4650 SYMTAB_LINETABLE (symtab
) = new_linetable (maxlines
);
4651 lang
= compunit_language (cust
);
4653 /* All symtabs must have at least two blocks. */
4655 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
) = new_block (NON_FUNCTION_BLOCK
, lang
);
4656 BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
) = new_block (NON_FUNCTION_BLOCK
, lang
);
4657 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4658 BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
4659 COMPUNIT_BLOCKVECTOR (cust
) = bv
;
4661 COMPUNIT_DEBUGFORMAT (cust
) = "ECOFF";
4665 /* Allocate a new partial_symtab NAME. */
4667 static struct partial_symtab
*
4668 new_psymtab (const char *name
, struct objfile
*objfile
)
4670 struct partial_symtab
*psymtab
;
4672 psymtab
= allocate_psymtab (name
, objfile
);
4674 /* Keep a backpointer to the file's symbols. */
4676 psymtab
->read_symtab_private
4677 = OBSTACK_ZALLOC (&objfile
->objfile_obstack
, symloc
);
4678 CUR_BFD (psymtab
) = cur_bfd
;
4679 DEBUG_SWAP (psymtab
) = debug_swap
;
4680 DEBUG_INFO (psymtab
) = debug_info
;
4681 PENDING_LIST (psymtab
) = pending_list
;
4683 /* The way to turn this into a symtab is to call... */
4684 psymtab
->read_symtab
= mdebug_read_symtab
;
4689 /* Allocate a linetable array of the given SIZE. Since the struct
4690 already includes one item, we subtract one when calculating the
4691 proper size to allocate. */
4693 static struct linetable
*
4694 new_linetable (int size
)
4696 struct linetable
*l
;
4700 size
= size
* sizeof (l
->item
) + sizeof (struct linetable
);
4701 l
= (struct linetable
*) xmalloc (size
);
4706 /* Oops, too big. Shrink it. This was important with the 2.4 linetables,
4707 I am not so sure about the 3.4 ones.
4709 Since the struct linetable already includes one item, we subtract one when
4710 calculating the proper size to allocate. */
4712 static struct linetable
*
4713 shrink_linetable (struct linetable
*lt
)
4715 return (struct linetable
*) xrealloc ((void *) lt
,
4716 (sizeof (struct linetable
)
4718 * sizeof (lt
->item
))));
4721 /* Allocate and zero a new blockvector of NBLOCKS blocks. */
4723 static struct blockvector
*
4724 new_bvect (int nblocks
)
4726 struct blockvector
*bv
;
4729 size
= sizeof (struct blockvector
) + nblocks
* sizeof (struct block
*);
4730 bv
= (struct blockvector
*) xzalloc (size
);
4732 BLOCKVECTOR_NBLOCKS (bv
) = nblocks
;
4737 /* Allocate and zero a new block of language LANGUAGE, and set its
4738 BLOCK_MULTIDICT. If function is non-zero, assume the block is
4739 associated to a function, and make sure that the symbols are stored
4740 linearly; otherwise, store them hashed. */
4742 static struct block
*
4743 new_block (enum block_type type
, enum language language
)
4745 /* FIXME: carlton/2003-09-11: This should use allocate_block to
4746 allocate the block. Which, in turn, suggests that the block
4747 should be allocated on an obstack. */
4748 struct block
*retval
= XCNEW (struct block
);
4750 if (type
== FUNCTION_BLOCK
)
4751 BLOCK_MULTIDICT (retval
) = mdict_create_linear_expandable (language
);
4753 BLOCK_MULTIDICT (retval
) = mdict_create_hashed_expandable (language
);
4758 /* Create a new symbol with printname NAME. */
4760 static struct symbol
*
4761 new_symbol (const char *name
)
4763 struct symbol
*s
= allocate_symbol (mdebugread_objfile
);
4765 SYMBOL_SET_LANGUAGE (s
, psymtab_language
,
4766 &mdebugread_objfile
->objfile_obstack
);
4767 SYMBOL_SET_NAMES (s
, name
, true, mdebugread_objfile
);
4771 /* Create a new type with printname NAME. */
4773 static struct type
*
4774 new_type (char *name
)
4778 t
= alloc_type (mdebugread_objfile
);
4779 TYPE_NAME (t
) = name
;
4780 INIT_CPLUS_SPECIFIC (t
);
4784 /* Read ECOFF debugging information from a BFD section. This is
4785 called from elfread.c. It parses the section into a
4786 ecoff_debug_info struct, and then lets the rest of the file handle
4790 elfmdebug_build_psymtabs (struct objfile
*objfile
,
4791 const struct ecoff_debug_swap
*swap
, asection
*sec
)
4793 bfd
*abfd
= objfile
->obfd
;
4794 struct ecoff_debug_info
*info
;
4796 /* FIXME: It's not clear whether we should be getting minimal symbol
4797 information from .mdebug in an ELF file, or whether we will.
4798 Re-initialize the minimal symbol reader in case we do. */
4800 minimal_symbol_reader
reader (objfile
);
4802 info
= XOBNEW (&objfile
->objfile_obstack
, ecoff_debug_info
);
4804 if (!(*swap
->read_debug_info
) (abfd
, sec
, info
))
4805 error (_("Error reading ECOFF debugging information: %s"),
4806 bfd_errmsg (bfd_get_error ()));
4808 mdebug_build_psymtabs (reader
, objfile
, swap
, info
);
4814 _initialize_mdebugread (void)
4816 mdebug_register_index
4817 = register_symbol_register_impl (LOC_REGISTER
, &mdebug_register_funcs
);
4818 mdebug_regparm_index
4819 = register_symbol_register_impl (LOC_REGPARM_ADDR
, &mdebug_register_funcs
);