1 /* Read a symbol table in ECOFF format (Third-Eye).
3 Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
7 Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
8 CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor
11 This file is part of GDB.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 59 Temple Place - Suite 330,
26 Boston, MA 02111-1307, USA. */
28 /* This module provides the function mdebug_build_psymtabs. It reads
29 ECOFF debugging information into partial symbol tables. The
30 debugging information is read from two structures. A struct
31 ecoff_debug_swap includes the sizes of each ECOFF structure and
32 swapping routines; these are fixed for a particular target. A
33 struct ecoff_debug_info points to the debugging information for a
34 particular object file.
36 ECOFF symbol tables are mostly written in the byte order of the
37 target machine. However, one section of the table (the auxiliary
38 symbol information) is written in the host byte order. There is a
39 bit in the other symbol info which describes which host byte order
40 was used. ECOFF thereby takes the trophy from Intel `b.out' for
41 the most brain-dead adaptation of a file format to byte order.
43 This module can read all four of the known byte-order combinations,
44 on any type of host. */
51 #include "gdb_obstack.h"
53 #include "stabsread.h"
54 #include "complaints.h"
56 #include "gdb_assert.h"
58 #include "dictionary.h"
60 /* These are needed if the tm.h file does not contain the necessary
61 mips specific definitions. */
63 #ifndef MIPS_EFI_SYMBOL_NAME
64 #define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
65 extern void ecoff_relocate_efi (struct symbol
*, CORE_ADDR
);
67 #include "coff/symconst.h"
68 typedef struct mips_extra_func_info
73 *mips_extra_func_info_t
;
80 #include <sys/types.h>
84 #include "gdb_string.h"
88 #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */
90 #include "libaout.h" /* Private BFD a.out information. */
91 #include "aout/aout64.h"
92 #include "aout/stab_gnu.h" /* STABS information */
94 #include "expression.h"
95 #include "language.h" /* For local_hex_string() */
97 extern void _initialize_mdebugread (void);
99 /* Provide a way to test if we have both ECOFF and ELF symbol tables.
100 We use this define in order to know whether we should override a
101 symbol's ECOFF section with its ELF section. This is necessary in
102 case the symbol's ELF section could not be represented in ECOFF. */
103 #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
104 && bfd_get_section_by_name (bfd, ".mdebug") != NULL)
107 /* We put a pointer to this structure in the read_symtab_private field
112 /* Index of the FDR that this psymtab represents. */
114 /* The BFD that the psymtab was created from. */
116 const struct ecoff_debug_swap
*debug_swap
;
117 struct ecoff_debug_info
*debug_info
;
118 struct mdebug_pending
**pending_list
;
119 /* Pointer to external symbols for this file. */
121 /* Size of extern_tab. */
123 enum language pst_language
;
126 #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
127 #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
128 #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
129 #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
130 #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
131 #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)
133 #define SC_IS_TEXT(sc) ((sc) == scText \
134 || (sc) == scRConst \
137 #define SC_IS_DATA(sc) ((sc) == scData \
142 #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
143 #define SC_IS_BSS(sc) ((sc) == scBss)
144 #define SC_IS_SBSS(sc) ((sc) == scSBss)
145 #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)
147 /* Various complaints about symbol reading that don't abort the process */
149 index_complaint (const char *arg1
)
151 complaint (&symfile_complaints
, "bad aux index at symbol %s", arg1
);
155 unknown_ext_complaint (const char *arg1
)
157 complaint (&symfile_complaints
, "unknown external symbol %s", arg1
);
161 basic_type_complaint (int arg1
, const char *arg2
)
163 complaint (&symfile_complaints
, "cannot map ECOFF basic type 0x%x for %s",
168 bad_tag_guess_complaint (const char *arg1
)
170 complaint (&symfile_complaints
, "guessed tag type of %s incorrectly", arg1
);
174 bad_rfd_entry_complaint (const char *arg1
, int arg2
, int arg3
)
176 complaint (&symfile_complaints
, "bad rfd entry for %s: file %d, index %d",
181 unexpected_type_code_complaint (const char *arg1
)
183 complaint (&symfile_complaints
, "unexpected type code for %s", arg1
);
186 /* Macros and extra defs */
188 /* Puns: hard to find whether -g was used and how */
190 #define MIN_GLEVEL GLEVEL_0
191 #define compare_glevel(a,b) \
192 (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
193 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
195 /* Things that really are local to this module */
197 /* Remember what we deduced to be the source language of this psymtab. */
199 static enum language psymtab_language
= language_unknown
;
205 /* How to parse debugging information for CUR_BFD. */
207 static const struct ecoff_debug_swap
*debug_swap
;
209 /* Pointers to debugging information for CUR_BFD. */
211 static struct ecoff_debug_info
*debug_info
;
213 /* Pointer to current file decriptor record, and its index */
218 /* Index of current symbol */
222 /* Note how much "debuggable" this image is. We would like
223 to see at least one FDR with full symbols */
225 static int max_gdbinfo
;
226 static int max_glevel
;
228 /* When examining .o files, report on undefined symbols */
230 static int n_undef_symbols
, n_undef_labels
, n_undef_vars
, n_undef_procs
;
232 /* Pseudo symbol to use when putting stabs into the symbol table. */
234 static char stabs_symbol
[] = STABS_SYMBOL
;
236 /* Types corresponding to mdebug format bt* basic types. */
238 static struct type
*mdebug_type_void
;
239 static struct type
*mdebug_type_char
;
240 static struct type
*mdebug_type_short
;
241 static struct type
*mdebug_type_int_32
;
242 #define mdebug_type_int mdebug_type_int_32
243 static struct type
*mdebug_type_int_64
;
244 static struct type
*mdebug_type_long_32
;
245 static struct type
*mdebug_type_long_64
;
246 static struct type
*mdebug_type_long_long_64
;
247 static struct type
*mdebug_type_unsigned_char
;
248 static struct type
*mdebug_type_unsigned_short
;
249 static struct type
*mdebug_type_unsigned_int_32
;
250 static struct type
*mdebug_type_unsigned_int_64
;
251 static struct type
*mdebug_type_unsigned_long_32
;
252 static struct type
*mdebug_type_unsigned_long_64
;
253 static struct type
*mdebug_type_unsigned_long_long_64
;
254 static struct type
*mdebug_type_adr_32
;
255 static struct type
*mdebug_type_adr_64
;
256 static struct type
*mdebug_type_float
;
257 static struct type
*mdebug_type_double
;
258 static struct type
*mdebug_type_complex
;
259 static struct type
*mdebug_type_double_complex
;
260 static struct type
*mdebug_type_fixed_dec
;
261 static struct type
*mdebug_type_float_dec
;
262 static struct type
*mdebug_type_string
;
264 /* Types for symbols from files compiled without debugging info. */
266 static struct type
*nodebug_func_symbol_type
;
267 static struct type
*nodebug_var_symbol_type
;
269 /* Nonzero if we have seen ecoff debugging info for a file. */
271 static int found_ecoff_debugging_info
;
273 /* Forward declarations */
275 static int upgrade_type (int, struct type
**, int, union aux_ext
*,
278 static void parse_partial_symbols (struct objfile
*);
280 static int has_opaque_xref (FDR
*, SYMR
*);
282 static int cross_ref (int, union aux_ext
*, struct type
**, enum type_code
,
283 char **, int, char *);
285 static struct symbol
*new_symbol (char *);
287 static struct type
*new_type (char *);
289 enum block_type
{ FUNCTION_BLOCK
, NON_FUNCTION_BLOCK
};
291 static struct block
*new_block (enum block_type
);
293 static struct symtab
*new_symtab (char *, int, struct objfile
*);
295 static struct linetable
*new_linetable (int);
297 static struct blockvector
*new_bvect (int);
299 static struct type
*parse_type (int, union aux_ext
*, unsigned int, int *,
302 static struct symbol
*mylookup_symbol (char *, struct block
*, domain_enum
,
305 static void sort_blocks (struct symtab
*);
307 static struct partial_symtab
*new_psymtab (char *, struct objfile
*);
309 static void psymtab_to_symtab_1 (struct partial_symtab
*, char *);
311 static void add_block (struct block
*, struct symtab
*);
313 static void add_symbol (struct symbol
*, struct block
*);
315 static int add_line (struct linetable
*, int, CORE_ADDR
, int);
317 static struct linetable
*shrink_linetable (struct linetable
*);
319 static void handle_psymbol_enumerators (struct objfile
*, FDR
*, int,
322 static char *mdebug_next_symbol_text (struct objfile
*);
324 /* Allocate zeroed memory */
327 xzalloc (unsigned int size
)
329 void *p
= xmalloc (size
);
335 /* Exported procedure: Builds a symtab from the PST partial one.
336 Restores the environment in effect when PST was created, delegates
337 most of the work to an ancillary procedure, and sorts
338 and reorders the symtab list at the end */
341 mdebug_psymtab_to_symtab (struct partial_symtab
*pst
)
349 printf_filtered ("Reading in symbols for %s...", pst
->filename
);
350 gdb_flush (gdb_stdout
);
353 next_symbol_text_func
= mdebug_next_symbol_text
;
355 psymtab_to_symtab_1 (pst
, pst
->filename
);
357 /* Match with global symbols. This only needs to be done once,
358 after all of the symtabs and dependencies have been read in. */
359 scan_file_globals (pst
->objfile
);
362 printf_filtered ("done.\n");
365 /* File-level interface functions */
367 /* Find a file descriptor given its index RF relative to a file CF */
370 get_rfd (int cf
, int rf
)
376 fdrs
= debug_info
->fdr
;
378 /* Object files do not have the RFD table, all refs are absolute */
381 (*debug_swap
->swap_rfd_in
) (cur_bfd
,
382 ((char *) debug_info
->external_rfd
384 * debug_swap
->external_rfd_size
)),
389 /* Return a safer print NAME for a file descriptor */
395 return "<stripped file>";
398 return debug_info
->ss
+ f
->issBase
+ f
->rss
;
402 /* Read in and parse the symtab of the file OBJFILE. Symbols from
403 different sections are relocated via the SECTION_OFFSETS. */
406 mdebug_build_psymtabs (struct objfile
*objfile
,
407 const struct ecoff_debug_swap
*swap
,
408 struct ecoff_debug_info
*info
)
410 cur_bfd
= objfile
->obfd
;
414 stabsread_new_init ();
415 buildsym_new_init ();
416 free_header_files ();
417 init_header_files ();
419 /* Make sure all the FDR information is swapped in. */
420 if (info
->fdr
== (FDR
*) NULL
)
426 info
->fdr
= (FDR
*) obstack_alloc (&objfile
->objfile_obstack
,
427 (info
->symbolic_header
.ifdMax
429 fdr_src
= info
->external_fdr
;
431 + info
->symbolic_header
.ifdMax
* swap
->external_fdr_size
);
433 for (; fdr_src
< fdr_end
; fdr_src
+= swap
->external_fdr_size
, fdr_ptr
++)
434 (*swap
->swap_fdr_in
) (objfile
->obfd
, fdr_src
, fdr_ptr
);
437 parse_partial_symbols (objfile
);
440 /* Check to make sure file was compiled with -g. If not, warn the
441 user of this limitation. */
442 if (compare_glevel (max_glevel
, GLEVEL_2
) < 0)
444 if (max_gdbinfo
== 0)
445 printf_unfiltered ("\n%s not compiled with -g, debugging support is limited.\n",
447 printf_unfiltered ("You should compile with -g2 or -g3 for best debugging support.\n");
448 gdb_flush (gdb_stdout
);
453 /* Local utilities */
455 /* Map of FDR indexes to partial symtabs */
459 struct partial_symtab
*pst
; /* the psymtab proper */
460 long n_globals
; /* exported globals (external symbols) */
461 long globals_offset
; /* cumulative */
465 /* Utility stack, used to nest procedures and blocks properly.
466 It is a doubly linked list, to avoid too many alloc/free.
467 Since we might need it quite a few times it is NOT deallocated
470 static struct parse_stack
472 struct parse_stack
*next
, *prev
;
473 struct symtab
*cur_st
; /* Current symtab. */
474 struct block
*cur_block
; /* Block in it. */
476 /* What are we parsing. stFile, or stBlock are for files and
477 blocks. stProc or stStaticProc means we have seen the start of a
478 procedure, but not the start of the block within in. When we see
479 the start of that block, we change it to stNil, without pushing a
480 new block, i.e. stNil means both a procedure and a block. */
484 struct type
*cur_type
; /* Type we parse fields for. */
485 int cur_field
; /* Field number in cur_type. */
486 CORE_ADDR procadr
; /* Start addres of this procedure */
487 int numargs
; /* Its argument count */
490 *top_stack
; /* Top stack ptr */
493 /* Enter a new lexical context */
496 push_parse_stack (void)
498 struct parse_stack
*new;
500 /* Reuse frames if possible */
501 if (top_stack
&& top_stack
->prev
)
502 new = top_stack
->prev
;
504 new = (struct parse_stack
*) xzalloc (sizeof (struct parse_stack
));
505 /* Initialize new frame with previous content */
508 struct parse_stack
*prev
= new->prev
;
511 top_stack
->prev
= new;
513 new->next
= top_stack
;
518 /* Exit a lexical context */
521 pop_parse_stack (void)
526 top_stack
= top_stack
->next
;
530 /* Cross-references might be to things we haven't looked at
531 yet, e.g. type references. To avoid too many type
532 duplications we keep a quick fixup table, an array
533 of lists of references indexed by file descriptor */
535 struct mdebug_pending
537 struct mdebug_pending
*next
; /* link */
538 char *s
; /* the unswapped symbol */
539 struct type
*t
; /* its partial type descriptor */
543 /* The pending information is kept for an entire object file, and used
544 to be in the sym_private field. I took it out when I split
545 mdebugread from mipsread, because this might not be the only type
546 of symbols read from an object file. Instead, we allocate the
547 pending information table when we create the partial symbols, and
548 we store a pointer to the single table in each psymtab. */
550 static struct mdebug_pending
**pending_list
;
552 /* Check whether we already saw symbol SH in file FH */
554 static struct mdebug_pending
*
555 is_pending_symbol (FDR
*fh
, char *sh
)
557 int f_idx
= fh
- debug_info
->fdr
;
558 struct mdebug_pending
*p
;
560 /* Linear search is ok, list is typically no more than 10 deep */
561 for (p
= pending_list
[f_idx
]; p
; p
= p
->next
)
567 /* Add a new symbol SH of type T */
570 add_pending (FDR
*fh
, char *sh
, struct type
*t
)
572 int f_idx
= fh
- debug_info
->fdr
;
573 struct mdebug_pending
*p
= is_pending_symbol (fh
, sh
);
575 /* Make sure we do not make duplicates */
578 p
= ((struct mdebug_pending
*)
579 obstack_alloc (¤t_objfile
->objfile_obstack
,
580 sizeof (struct mdebug_pending
)));
583 p
->next
= pending_list
[f_idx
];
584 pending_list
[f_idx
] = p
;
589 /* Parsing Routines proper. */
591 /* Parse a single symbol. Mostly just make up a GDB symbol for it.
592 For blocks, procedures and types we open a new lexical context.
593 This is basically just a big switch on the symbol's type. Argument
594 AX is the base pointer of aux symbols for this file (fh->iauxBase).
595 EXT_SH points to the unswapped symbol, which is needed for struct,
596 union, etc., types; it is NULL for an EXTR. BIGEND says whether
597 aux symbols are big-endian or little-endian. Return count of
598 SYMR's handled (normally one). */
601 parse_symbol (SYMR
*sh
, union aux_ext
*ax
, char *ext_sh
, int bigend
,
602 struct section_offsets
*section_offsets
, struct objfile
*objfile
)
604 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
605 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
609 struct mdebug_pending
*pend
;
613 enum address_class
class;
615 long svalue
= sh
->value
;
618 if (ext_sh
== (char *) NULL
)
619 name
= debug_info
->ssext
+ sh
->iss
;
621 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
->iss
;
627 /* Do not relocate relative values.
628 The value of a stEnd symbol is the displacement from the
629 corresponding start symbol value.
630 The value of a stBlock symbol is the displacement from the
631 procedure address. */
632 if (sh
->st
!= stEnd
&& sh
->st
!= stBlock
)
633 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT (objfile
));
640 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_DATA (objfile
));
644 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_BSS (objfile
));
653 case stGlobal
: /* external symbol, goes into global block */
655 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack
->cur_st
),
657 s
= new_symbol (name
);
658 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
661 case stStatic
: /* static data, goes into current block. */
663 b
= top_stack
->cur_block
;
664 s
= new_symbol (name
);
665 if (SC_IS_COMMON (sh
->sc
))
667 /* It is a FORTRAN common block. At least for SGI Fortran the
668 address is not in the symbol; we need to fix it later in
669 scan_file_globals. */
670 int bucket
= hashname (DEPRECATED_SYMBOL_NAME (s
));
671 SYMBOL_VALUE_CHAIN (s
) = global_sym_chain
[bucket
];
672 global_sym_chain
[bucket
] = s
;
675 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
678 case stLocal
: /* local variable, goes into current block */
679 if (sh
->sc
== scRegister
)
681 class = LOC_REGISTER
;
682 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
686 b
= top_stack
->cur_block
;
687 s
= new_symbol (name
);
688 SYMBOL_VALUE (s
) = svalue
;
690 data
: /* Common code for symbols describing data */
691 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
692 SYMBOL_CLASS (s
) = class;
695 /* Type could be missing if file is compiled without debugging info. */
696 if (SC_IS_UNDEF (sh
->sc
)
697 || sh
->sc
== scNil
|| sh
->index
== indexNil
)
698 SYMBOL_TYPE (s
) = nodebug_var_symbol_type
;
700 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
701 /* Value of a data symbol is its memory address */
704 case stParam
: /* arg to procedure, goes into current block */
706 found_ecoff_debugging_info
= 1;
707 top_stack
->numargs
++;
709 /* Special GNU C++ name. */
710 if (is_cplus_marker (name
[0]) && name
[1] == 't' && name
[2] == 0)
711 name
= "this"; /* FIXME, not alloc'd in obstack */
712 s
= new_symbol (name
);
714 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
718 /* Pass by value in register. */
719 SYMBOL_CLASS (s
) = LOC_REGPARM
;
720 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
723 /* Pass by reference on stack. */
724 SYMBOL_CLASS (s
) = LOC_REF_ARG
;
727 /* Pass by reference in register. */
728 SYMBOL_CLASS (s
) = LOC_REGPARM_ADDR
;
729 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
732 /* Pass by value on stack. */
733 SYMBOL_CLASS (s
) = LOC_ARG
;
736 SYMBOL_VALUE (s
) = svalue
;
737 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
738 add_symbol (s
, top_stack
->cur_block
);
741 case stLabel
: /* label, goes into current block */
742 s
= new_symbol (name
);
743 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
; /* so that it can be used */
744 SYMBOL_CLASS (s
) = LOC_LABEL
; /* but not misused */
745 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
746 SYMBOL_TYPE (s
) = mdebug_type_int
;
747 add_symbol (s
, top_stack
->cur_block
);
750 case stProc
: /* Procedure, usually goes into global block */
751 case stStaticProc
: /* Static procedure, goes into current block */
752 /* For stProc symbol records, we need to check the storage class
753 as well, as only (stProc, scText) entries represent "real"
754 procedures - See the Compaq document titled "Object File /
755 Symbol Table Format Specification" for more information.
756 If the storage class is not scText, we discard the whole block
757 of symbol records for this stProc. */
758 if (sh
->st
== stProc
&& sh
->sc
!= scText
)
760 char *ext_tsym
= ext_sh
;
761 int keep_counting
= 1;
764 while (keep_counting
)
766 ext_tsym
+= external_sym_size
;
767 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
777 complaint (&symfile_complaints
,
778 "unknown symbol type 0x%x", sh
->st
);
784 s
= new_symbol (name
);
785 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
786 SYMBOL_CLASS (s
) = LOC_BLOCK
;
787 /* Type of the return value */
788 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
792 t
= parse_type (cur_fd
, ax
, sh
->index
+ 1, 0, bigend
, name
);
793 if (strcmp (name
, "malloc") == 0
794 && TYPE_CODE (t
) == TYPE_CODE_VOID
)
796 /* I don't know why, but, at least under Alpha GNU/Linux,
797 when linking against a malloc without debugging
798 symbols, its read as a function returning void---this
799 is bad because it means we cannot call functions with
800 string arguments interactively; i.e., "call
801 printf("howdy\n")" would fail with the error message
802 "program has no memory available". To avoid this, we
803 patch up the type and make it void*
804 instead. (davidm@azstarnet.com)
806 t
= make_pointer_type (t
, NULL
);
809 b
= top_stack
->cur_block
;
810 if (sh
->st
== stProc
)
812 struct blockvector
*bv
= BLOCKVECTOR (top_stack
->cur_st
);
813 /* The next test should normally be true, but provides a
814 hook for nested functions (which we don't want to make
816 if (b
== BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
))
817 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
818 /* Irix 5 sometimes has duplicate names for the same
819 function. We want to add such names up at the global
820 level, not as a nested function. */
821 else if (sh
->value
== top_stack
->procadr
)
822 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
826 /* Make a type for the procedure itself */
827 SYMBOL_TYPE (s
) = lookup_function_type (t
);
829 /* All functions in C++ have prototypes. For C we don't have enough
830 information in the debug info. */
831 if (SYMBOL_LANGUAGE (s
) == language_cplus
)
832 TYPE_FLAGS (SYMBOL_TYPE (s
)) |= TYPE_FLAG_PROTOTYPED
;
834 /* Create and enter a new lexical context */
835 b
= new_block (FUNCTION_BLOCK
);
836 SYMBOL_BLOCK_VALUE (s
) = b
;
837 BLOCK_FUNCTION (b
) = s
;
838 BLOCK_START (b
) = BLOCK_END (b
) = sh
->value
;
839 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
840 add_block (b
, top_stack
->cur_st
);
842 /* Not if we only have partial info */
843 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
847 top_stack
->cur_block
= b
;
848 top_stack
->blocktype
= sh
->st
;
849 top_stack
->cur_type
= SYMBOL_TYPE (s
);
850 top_stack
->cur_field
= -1;
851 top_stack
->procadr
= sh
->value
;
852 top_stack
->numargs
= 0;
855 /* Beginning of code for structure, union, and enum definitions.
856 They all share a common set of local variables, defined here. */
858 enum type_code type_code
;
864 case stStruct
: /* Start a block defining a struct type */
865 type_code
= TYPE_CODE_STRUCT
;
866 goto structured_common
;
868 case stUnion
: /* Start a block defining a union type */
869 type_code
= TYPE_CODE_UNION
;
870 goto structured_common
;
872 case stEnum
: /* Start a block defining an enum type */
873 type_code
= TYPE_CODE_ENUM
;
874 goto structured_common
;
876 case stBlock
: /* Either a lexical block, or some type */
877 if (sh
->sc
!= scInfo
&& !SC_IS_COMMON (sh
->sc
))
878 goto case_stBlock_code
; /* Lexical block */
880 type_code
= TYPE_CODE_UNDEF
; /* We have a type. */
882 /* Common code for handling struct, union, enum, and/or as-yet-
883 unknown-type blocks of info about structured data. `type_code'
884 has been set to the proper TYPE_CODE, if we know it. */
886 found_ecoff_debugging_info
= 1;
888 top_stack
->blocktype
= stBlock
;
890 /* First count the number of fields and the highest value. */
893 for (ext_tsym
= ext_sh
+ external_sym_size
;
895 ext_tsym
+= external_sym_size
)
899 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
904 /* C++ encodes class types as structures where there the
905 methods are encoded as stProc. The scope of stProc
906 symbols also ends with stEnd, thus creating a risk of
907 taking the wrong stEnd symbol record as the end of
908 the current struct, which would cause GDB to undercount
909 the real number of fields in this struct. To make sure
910 we really reached the right stEnd symbol record, we
911 check the associated name, and match it against the
912 struct name. Since method names are mangled while
913 the class name is not, there is no risk of having a
914 method whose name is identical to the class name
915 (in particular constructor method names are different
916 from the class name). There is therefore no risk that
917 this check stops the count on the StEnd of a method.
919 Also, assume that we're really at the end when tsym.iss
921 if (tsym
.iss
== issNull
922 || strcmp (debug_info
->ss
+ cur_fdr
->issBase
+ tsym
.iss
,
928 if (nfields
== 0 && type_code
== TYPE_CODE_UNDEF
)
930 /* If the type of the member is Nil (or Void),
931 without qualifiers, assume the tag is an
933 Alpha cc -migrate enums are recognized by a zero
934 index and a zero symbol value.
935 DU 4.0 cc enums are recognized by a member type of
936 btEnum without qualifiers and a zero symbol value. */
937 if (tsym
.index
== indexNil
938 || (tsym
.index
== 0 && sh
->value
== 0))
939 type_code
= TYPE_CODE_ENUM
;
942 (*debug_swap
->swap_tir_in
) (bigend
,
943 &ax
[tsym
.index
].a_ti
,
945 if ((tir
.bt
== btNil
|| tir
.bt
== btVoid
946 || (tir
.bt
== btEnum
&& sh
->value
== 0))
948 type_code
= TYPE_CODE_ENUM
;
952 if (tsym
.value
> max_value
)
953 max_value
= tsym
.value
;
962 /* This is a no-op; is it trying to tell us something
963 we should be checking? */
964 if (tsym
.sc
== scVariant
); /*UNIMPLEMENTED */
968 /* This is something like a struct within a
969 struct. Skip over the fields of the inner
970 struct. The -1 is because the for loop will
971 increment ext_tsym. */
972 ext_tsym
= ((char *) debug_info
->external_sym
973 + ((cur_fdr
->isymBase
+ tsym
.index
- 1)
974 * external_sym_size
));
980 /* mips cc puts out a typedef for struct x if it is not yet
981 defined when it encounters
982 struct y { struct x *xp; };
987 /* Irix5 cc puts out a stIndirect for struct x if it is not
988 yet defined when it encounters
989 struct y { struct x *xp; };
994 complaint (&symfile_complaints
,
995 "declaration block contains unhandled symbol type %d",
1001 /* In an stBlock, there is no way to distinguish structs,
1002 unions, and enums at this point. This is a bug in the
1003 original design (that has been fixed with the recent
1004 addition of the stStruct, stUnion, and stEnum symbol
1005 types.) The way you can tell is if/when you see a variable
1006 or field of that type. In that case the variable's type
1007 (in the AUX table) says if the type is struct, union, or
1008 enum, and points back to the stBlock here. So you can
1009 patch the tag kind up later - but only if there actually is
1010 a variable or field of that type.
1012 So until we know for sure, we will guess at this point.
1014 If the first member has index==indexNil or a void type,
1015 assume we have an enumeration.
1016 Otherwise, if there is more than one member, and all
1017 the members have offset 0, assume we have a union.
1018 Otherwise, assume we have a struct.
1020 The heuristic could guess wrong in the case of of an
1021 enumeration with no members or a union with one (or zero)
1022 members, or when all except the last field of a struct have
1023 width zero. These are uncommon and/or illegal situations,
1024 and in any case guessing wrong probably doesn't matter
1027 But if we later do find out we were wrong, we fixup the tag
1028 kind. Members of an enumeration must be handled
1029 differently from struct/union fields, and that is harder to
1030 patch up, but luckily we shouldn't need to. (If there are
1031 any enumeration members, we can tell for sure it's an enum
1034 if (type_code
== TYPE_CODE_UNDEF
)
1036 if (nfields
> 1 && max_value
== 0)
1037 type_code
= TYPE_CODE_UNION
;
1039 type_code
= TYPE_CODE_STRUCT
;
1042 /* Create a new type or use the pending type. */
1043 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1044 if (pend
== (struct mdebug_pending
*) NULL
)
1046 t
= new_type (NULL
);
1047 add_pending (cur_fdr
, ext_sh
, t
);
1052 /* Do not set the tag name if it is a compiler generated tag name
1053 (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
1054 Alpha cc puts out an sh->iss of zero for those. */
1055 if (sh
->iss
== 0 || name
[0] == '.' || name
[0] == '\0')
1056 TYPE_TAG_NAME (t
) = NULL
;
1058 TYPE_TAG_NAME (t
) = obconcat (¤t_objfile
->objfile_obstack
,
1061 TYPE_CODE (t
) = type_code
;
1062 TYPE_LENGTH (t
) = sh
->value
;
1063 TYPE_NFIELDS (t
) = nfields
;
1064 TYPE_FIELDS (t
) = f
= ((struct field
*)
1066 nfields
* sizeof (struct field
)));
1068 if (type_code
== TYPE_CODE_ENUM
)
1070 int unsigned_enum
= 1;
1072 /* This is a non-empty enum. */
1074 /* DEC c89 has the number of enumerators in the sh.value field,
1075 not the type length, so we have to compensate for that
1076 incompatibility quirk.
1077 This might do the wrong thing for an enum with one or two
1078 enumerators and gcc -gcoff -fshort-enums, but these cases
1079 are hopefully rare enough.
1080 Alpha cc -migrate has a sh.value field of zero, we adjust
1082 if (TYPE_LENGTH (t
) == TYPE_NFIELDS (t
)
1083 || TYPE_LENGTH (t
) == 0)
1084 TYPE_LENGTH (t
) = TARGET_INT_BIT
/ HOST_CHAR_BIT
;
1085 for (ext_tsym
= ext_sh
+ external_sym_size
;
1087 ext_tsym
+= external_sym_size
)
1090 struct symbol
*enum_sym
;
1092 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
1094 if (tsym
.st
!= stMember
)
1097 FIELD_BITPOS (*f
) = tsym
.value
;
1098 FIELD_TYPE (*f
) = t
;
1099 FIELD_NAME (*f
) = debug_info
->ss
+ cur_fdr
->issBase
+ tsym
.iss
;
1100 FIELD_BITSIZE (*f
) = 0;
1101 FIELD_STATIC_KIND (*f
) = 0;
1103 enum_sym
= ((struct symbol
*)
1104 obstack_alloc (¤t_objfile
->objfile_obstack
,
1105 sizeof (struct symbol
)));
1106 memset (enum_sym
, 0, sizeof (struct symbol
));
1107 DEPRECATED_SYMBOL_NAME (enum_sym
) =
1108 obsavestring (f
->name
, strlen (f
->name
),
1109 ¤t_objfile
->objfile_obstack
);
1110 SYMBOL_CLASS (enum_sym
) = LOC_CONST
;
1111 SYMBOL_TYPE (enum_sym
) = t
;
1112 SYMBOL_DOMAIN (enum_sym
) = VAR_DOMAIN
;
1113 SYMBOL_VALUE (enum_sym
) = tsym
.value
;
1114 if (SYMBOL_VALUE (enum_sym
) < 0)
1116 add_symbol (enum_sym
, top_stack
->cur_block
);
1118 /* Skip the stMembers that we've handled. */
1123 TYPE_FLAGS (t
) |= TYPE_FLAG_UNSIGNED
;
1125 /* make this the current type */
1126 top_stack
->cur_type
= t
;
1127 top_stack
->cur_field
= 0;
1129 /* Do not create a symbol for alpha cc unnamed structs. */
1133 /* gcc puts out an empty struct for an opaque struct definitions,
1134 do not create a symbol for it either. */
1135 if (TYPE_NFIELDS (t
) == 0)
1137 TYPE_FLAGS (t
) |= TYPE_FLAG_STUB
;
1141 s
= new_symbol (name
);
1142 SYMBOL_DOMAIN (s
) = STRUCT_DOMAIN
;
1143 SYMBOL_CLASS (s
) = LOC_TYPEDEF
;
1144 SYMBOL_VALUE (s
) = 0;
1145 SYMBOL_TYPE (s
) = t
;
1146 add_symbol (s
, top_stack
->cur_block
);
1149 /* End of local variables shared by struct, union, enum, and
1150 block (as yet unknown struct/union/enum) processing. */
1154 found_ecoff_debugging_info
= 1;
1155 /* beginnning of (code) block. Value of symbol
1156 is the displacement from procedure start */
1157 push_parse_stack ();
1159 /* Do not start a new block if this is the outermost block of a
1160 procedure. This allows the LOC_BLOCK symbol to point to the
1161 block with the local variables, so funcname::var works. */
1162 if (top_stack
->blocktype
== stProc
1163 || top_stack
->blocktype
== stStaticProc
)
1165 top_stack
->blocktype
= stNil
;
1169 top_stack
->blocktype
= stBlock
;
1170 b
= new_block (NON_FUNCTION_BLOCK
);
1171 BLOCK_START (b
) = sh
->value
+ top_stack
->procadr
;
1172 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
1173 top_stack
->cur_block
= b
;
1174 add_block (b
, top_stack
->cur_st
);
1177 case stEnd
: /* end (of anything) */
1178 if (sh
->sc
== scInfo
|| SC_IS_COMMON (sh
->sc
))
1180 /* Finished with type */
1181 top_stack
->cur_type
= 0;
1183 else if (sh
->sc
== scText
&&
1184 (top_stack
->blocktype
== stProc
||
1185 top_stack
->blocktype
== stStaticProc
))
1187 /* Finished with procedure */
1188 struct blockvector
*bv
= BLOCKVECTOR (top_stack
->cur_st
);
1189 struct mips_extra_func_info
*e
;
1190 struct block
*b
= top_stack
->cur_block
;
1191 struct type
*ftype
= top_stack
->cur_type
;
1194 BLOCK_END (top_stack
->cur_block
) += sh
->value
; /* size */
1196 /* Make up special symbol to contain procedure specific info */
1197 s
= new_symbol (MIPS_EFI_SYMBOL_NAME
);
1198 SYMBOL_DOMAIN (s
) = LABEL_DOMAIN
;
1199 SYMBOL_CLASS (s
) = LOC_CONST
;
1200 SYMBOL_TYPE (s
) = mdebug_type_void
;
1201 e
= ((struct mips_extra_func_info
*)
1202 obstack_alloc (¤t_objfile
->objfile_obstack
,
1203 sizeof (struct mips_extra_func_info
)));
1204 memset (e
, 0, sizeof (struct mips_extra_func_info
));
1205 SYMBOL_VALUE (s
) = (long) e
;
1206 e
->numargs
= top_stack
->numargs
;
1207 e
->pdr
.framereg
= -1;
1208 add_symbol (s
, top_stack
->cur_block
);
1210 /* f77 emits proc-level with address bounds==[0,0],
1211 So look for such child blocks, and patch them. */
1212 for (i
= 0; i
< BLOCKVECTOR_NBLOCKS (bv
); i
++)
1214 struct block
*b_bad
= BLOCKVECTOR_BLOCK (bv
, i
);
1215 if (BLOCK_SUPERBLOCK (b_bad
) == b
1216 && BLOCK_START (b_bad
) == top_stack
->procadr
1217 && BLOCK_END (b_bad
) == top_stack
->procadr
)
1219 BLOCK_START (b_bad
) = BLOCK_START (b
);
1220 BLOCK_END (b_bad
) = BLOCK_END (b
);
1224 if (TYPE_NFIELDS (ftype
) <= 0)
1226 /* No parameter type information is recorded with the function's
1227 type. Set that from the type of the parameter symbols. */
1228 int nparams
= top_stack
->numargs
;
1234 struct dict_iterator iter
;
1235 TYPE_NFIELDS (ftype
) = nparams
;
1236 TYPE_FIELDS (ftype
) = (struct field
*)
1237 TYPE_ALLOC (ftype
, nparams
* sizeof (struct field
));
1240 ALL_BLOCK_SYMBOLS (b
, iter
, sym
)
1242 if (iparams
== nparams
)
1245 switch (SYMBOL_CLASS (sym
))
1250 case LOC_REGPARM_ADDR
:
1251 TYPE_FIELD_TYPE (ftype
, iparams
) = SYMBOL_TYPE (sym
);
1252 TYPE_FIELD_ARTIFICIAL (ftype
, iparams
) = 0;
1262 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stBlock
)
1264 /* End of (code) block. The value of the symbol is the
1265 displacement from the procedure`s start address of the
1266 end of this block. */
1267 BLOCK_END (top_stack
->cur_block
) = sh
->value
+ top_stack
->procadr
;
1269 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stNil
)
1271 /* End of outermost block. Pop parse stack and ignore. The
1272 following stEnd of stProc will take care of the block. */
1275 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stFile
)
1277 /* End of file. Pop parse stack and ignore. Higher
1278 level code deals with this. */
1282 complaint (&symfile_complaints
,
1283 "stEnd with storage class %d not handled", sh
->sc
);
1285 pop_parse_stack (); /* restore previous lexical context */
1288 case stMember
: /* member of struct or union */
1289 f
= &TYPE_FIELDS (top_stack
->cur_type
)[top_stack
->cur_field
++];
1290 FIELD_NAME (*f
) = name
;
1291 FIELD_BITPOS (*f
) = sh
->value
;
1293 FIELD_TYPE (*f
) = parse_type (cur_fd
, ax
, sh
->index
, &bitsize
, bigend
, name
);
1294 FIELD_BITSIZE (*f
) = bitsize
;
1295 FIELD_STATIC_KIND (*f
) = 0;
1298 case stIndirect
: /* forward declaration on Irix5 */
1299 /* Forward declarations from Irix5 cc are handled by cross_ref,
1303 case stTypedef
: /* type definition */
1304 found_ecoff_debugging_info
= 1;
1306 /* Typedefs for forward declarations and opaque structs from alpha cc
1307 are handled by cross_ref, skip them. */
1311 /* Parse the type or use the pending type. */
1312 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1313 if (pend
== (struct mdebug_pending
*) NULL
)
1315 t
= parse_type (cur_fd
, ax
, sh
->index
, (int *) NULL
, bigend
, name
);
1316 add_pending (cur_fdr
, ext_sh
, t
);
1321 /* mips cc puts out a typedef with the name of the struct for forward
1322 declarations. These should not go into the symbol table and
1323 TYPE_NAME should not be set for them.
1324 They can't be distinguished from an intentional typedef to
1325 the same name however:
1327 struct x { int ix; int jx; };
1331 struct xx {int ixx; int jxx; };
1332 generates a cross referencing stTypedef for x and xx.
1333 The user visible effect of this is that the type of a pointer
1334 to struct foo sometimes is given as `foo *' instead of `struct foo *'.
1335 The problem is fixed with alpha cc and Irix5 cc. */
1337 /* However if the typedef cross references to an opaque aggregate, it
1338 is safe to omit it from the symbol table. */
1340 if (has_opaque_xref (cur_fdr
, sh
))
1342 s
= new_symbol (name
);
1343 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
1344 SYMBOL_CLASS (s
) = LOC_TYPEDEF
;
1345 SYMBOL_BLOCK_VALUE (s
) = top_stack
->cur_block
;
1346 SYMBOL_TYPE (s
) = t
;
1347 add_symbol (s
, top_stack
->cur_block
);
1349 /* Incomplete definitions of structs should not get a name. */
1350 if (TYPE_NAME (SYMBOL_TYPE (s
)) == NULL
1351 && (TYPE_NFIELDS (SYMBOL_TYPE (s
)) != 0
1352 || (TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_STRUCT
1353 && TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_UNION
)))
1355 if (TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_PTR
1356 || TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_FUNC
)
1358 /* If we are giving a name to a type such as "pointer to
1359 foo" or "function returning foo", we better not set
1360 the TYPE_NAME. If the program contains "typedef char
1361 *caddr_t;", we don't want all variables of type char
1362 * to print as caddr_t. This is not just a
1363 consequence of GDB's type management; CC and GCC (at
1364 least through version 2.4) both output variables of
1365 either type char * or caddr_t with the type
1366 refering to the stTypedef symbol for caddr_t. If a future
1367 compiler cleans this up it GDB is not ready for it
1368 yet, but if it becomes ready we somehow need to
1369 disable this check (without breaking the PCC/GCC2.4
1374 Fortunately, this check seems not to be necessary
1375 for anything except pointers or functions. */
1378 TYPE_NAME (SYMBOL_TYPE (s
)) = DEPRECATED_SYMBOL_NAME (s
);
1382 case stFile
: /* file name */
1383 push_parse_stack ();
1384 top_stack
->blocktype
= sh
->st
;
1387 /* I`ve never seen these for C */
1389 break; /* register relocation */
1391 break; /* forwarding address */
1393 break; /* constant */
1395 complaint (&symfile_complaints
, "unknown symbol type 0x%x", sh
->st
);
1402 /* Parse the type information provided in the raw AX entries for
1403 the symbol SH. Return the bitfield size in BS, in case.
1404 We must byte-swap the AX entries before we use them; BIGEND says whether
1405 they are big-endian or little-endian (from fh->fBigendian). */
1407 static struct type
*
1408 parse_type (int fd
, union aux_ext
*ax
, unsigned int aux_index
, int *bs
,
1409 int bigend
, char *sym_name
)
1411 /* Null entries in this map are treated specially */
1412 static struct type
**map_bt
[] =
1414 &mdebug_type_void
, /* btNil */
1415 &mdebug_type_adr_32
, /* btAdr */
1416 &mdebug_type_char
, /* btChar */
1417 &mdebug_type_unsigned_char
, /* btUChar */
1418 &mdebug_type_short
, /* btShort */
1419 &mdebug_type_unsigned_short
, /* btUShort */
1420 &mdebug_type_int_32
, /* btInt */
1421 &mdebug_type_unsigned_int_32
, /* btUInt */
1422 &mdebug_type_long_32
, /* btLong */
1423 &mdebug_type_unsigned_long_32
, /* btULong */
1424 &mdebug_type_float
, /* btFloat */
1425 &mdebug_type_double
, /* btDouble */
1432 &mdebug_type_complex
, /* btComplex */
1433 &mdebug_type_double_complex
, /* btDComplex */
1435 &mdebug_type_fixed_dec
, /* btFixedDec */
1436 &mdebug_type_float_dec
, /* btFloatDec */
1437 &mdebug_type_string
, /* btString */
1440 &mdebug_type_void
, /* btVoid */
1441 0, /* DEC C++: Pointer to member */
1442 0, /* DEC C++: Virtual function table */
1443 0, /* DEC C++: Class (Record) */
1444 &mdebug_type_long_64
, /* btLong64 */
1445 &mdebug_type_unsigned_long_64
, /* btULong64 */
1446 &mdebug_type_long_long_64
, /* btLongLong64 */
1447 &mdebug_type_unsigned_long_long_64
, /* btULongLong64 */
1448 &mdebug_type_adr_64
, /* btAdr64 */
1449 &mdebug_type_int_64
, /* btInt64 */
1450 &mdebug_type_unsigned_int_64
, /* btUInt64 */
1454 struct type
*tp
= 0;
1455 enum type_code type_code
= TYPE_CODE_UNDEF
;
1457 /* Handle undefined types, they have indexNil. */
1458 if (aux_index
== indexNil
)
1459 return mdebug_type_int
;
1461 /* Handle corrupt aux indices. */
1462 if (aux_index
>= (debug_info
->fdr
+ fd
)->caux
)
1464 index_complaint (sym_name
);
1465 return mdebug_type_int
;
1469 /* Use aux as a type information record, map its basic type. */
1470 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1471 if (t
->bt
>= (sizeof (map_bt
) / sizeof (*map_bt
)))
1473 basic_type_complaint (t
->bt
, sym_name
);
1474 return mdebug_type_int
;
1478 tp
= *map_bt
[t
->bt
];
1483 /* Cannot use builtin types -- build our own */
1487 type_code
= TYPE_CODE_STRUCT
;
1490 type_code
= TYPE_CODE_UNION
;
1493 type_code
= TYPE_CODE_ENUM
;
1496 type_code
= TYPE_CODE_RANGE
;
1499 type_code
= TYPE_CODE_SET
;
1502 /* alpha cc -migrate uses this for typedefs. The true type will
1503 be obtained by crossreferencing below. */
1504 type_code
= TYPE_CODE_ERROR
;
1507 /* alpha cc uses this for typedefs. The true type will be
1508 obtained by crossreferencing below. */
1509 type_code
= TYPE_CODE_ERROR
;
1512 basic_type_complaint (t
->bt
, sym_name
);
1513 return mdebug_type_int
;
1517 /* Move on to next aux */
1522 int width
= AUX_GET_WIDTH (bigend
, ax
);
1523 /* Inhibit core dumps if TIR is corrupted. */
1524 if (bs
== (int *) NULL
)
1526 /* Alpha cc -migrate encodes char and unsigned char types
1527 as short and unsigned short types with a field width of 8.
1528 Enum types also have a field width which we ignore for now. */
1529 if (t
->bt
== btShort
&& width
== 8)
1530 tp
= mdebug_type_char
;
1531 else if (t
->bt
== btUShort
&& width
== 8)
1532 tp
= mdebug_type_unsigned_char
;
1533 else if (t
->bt
== btEnum
)
1536 complaint (&symfile_complaints
, "can't handle TIR fBitfield for %s",
1544 /* A btIndirect entry cross references to an aux entry containing
1546 if (t
->bt
== btIndirect
)
1553 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
1555 if (rn
->rfd
== 0xfff)
1557 rf
= AUX_GET_ISYM (bigend
, ax
);
1565 complaint (&symfile_complaints
,
1566 "unable to cross ref btIndirect for %s", sym_name
);
1567 return mdebug_type_int
;
1569 xref_fh
= get_rfd (fd
, rf
);
1570 xref_fd
= xref_fh
- debug_info
->fdr
;
1571 tp
= parse_type (xref_fd
, debug_info
->external_aux
+ xref_fh
->iauxBase
,
1572 rn
->index
, (int *) NULL
, xref_fh
->fBigendian
, sym_name
);
1575 /* All these types really point to some (common) MIPS type
1576 definition, and only the type-qualifiers fully identify
1577 them. We'll make the same effort at sharing. */
1578 if (t
->bt
== btStruct
||
1582 /* btSet (I think) implies that the name is a tag name, not a typedef
1583 name. This apparently is a MIPS extension for C sets. */
1588 /* Try to cross reference this type, build new type on failure. */
1589 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1590 if (tp
== (struct type
*) NULL
)
1591 tp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
1593 /* DEC c89 produces cross references to qualified aggregate types,
1594 dereference them. */
1595 while (TYPE_CODE (tp
) == TYPE_CODE_PTR
1596 || TYPE_CODE (tp
) == TYPE_CODE_ARRAY
)
1597 tp
= TYPE_TARGET_TYPE (tp
);
1599 /* Make sure that TYPE_CODE(tp) has an expected type code.
1600 Any type may be returned from cross_ref if file indirect entries
1602 if (TYPE_CODE (tp
) != TYPE_CODE_STRUCT
1603 && TYPE_CODE (tp
) != TYPE_CODE_UNION
1604 && TYPE_CODE (tp
) != TYPE_CODE_ENUM
)
1606 unexpected_type_code_complaint (sym_name
);
1611 /* Usually, TYPE_CODE(tp) is already type_code. The main
1612 exception is if we guessed wrong re struct/union/enum.
1613 But for struct vs. union a wrong guess is harmless, so
1614 don't complain(). */
1615 if ((TYPE_CODE (tp
) == TYPE_CODE_ENUM
1616 && type_code
!= TYPE_CODE_ENUM
)
1617 || (TYPE_CODE (tp
) != TYPE_CODE_ENUM
1618 && type_code
== TYPE_CODE_ENUM
))
1620 bad_tag_guess_complaint (sym_name
);
1623 if (TYPE_CODE (tp
) != type_code
)
1625 TYPE_CODE (tp
) = type_code
;
1628 /* Do not set the tag name if it is a compiler generated tag name
1629 (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */
1630 if (name
[0] == '.' || name
[0] == '\0')
1631 TYPE_TAG_NAME (tp
) = NULL
;
1632 else if (TYPE_TAG_NAME (tp
) == NULL
1633 || strcmp (TYPE_TAG_NAME (tp
), name
) != 0)
1634 TYPE_TAG_NAME (tp
) = obsavestring (name
, strlen (name
),
1635 ¤t_objfile
->objfile_obstack
);
1639 /* All these types really point to some (common) MIPS type
1640 definition, and only the type-qualifiers fully identify
1641 them. We'll make the same effort at sharing.
1642 FIXME: We are not doing any guessing on range types. */
1643 if (t
->bt
== btRange
)
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
);
1649 if (tp
== (struct type
*) NULL
)
1650 tp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
1652 /* Make sure that TYPE_CODE(tp) has an expected type code.
1653 Any type may be returned from cross_ref if file indirect entries
1655 if (TYPE_CODE (tp
) != TYPE_CODE_RANGE
)
1657 unexpected_type_code_complaint (sym_name
);
1661 /* Usually, TYPE_CODE(tp) is already type_code. The main
1662 exception is if we guessed wrong re struct/union/enum. */
1663 if (TYPE_CODE (tp
) != type_code
)
1665 bad_tag_guess_complaint (sym_name
);
1666 TYPE_CODE (tp
) = type_code
;
1668 if (TYPE_NAME (tp
) == NULL
1669 || strcmp (TYPE_NAME (tp
), name
) != 0)
1670 TYPE_NAME (tp
) = obsavestring (name
, strlen (name
),
1671 ¤t_objfile
->objfile_obstack
);
1674 if (t
->bt
== btTypedef
)
1678 /* Try to cross reference this type, it should succeed. */
1679 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1680 if (tp
== (struct type
*) NULL
)
1682 complaint (&symfile_complaints
,
1683 "unable to cross ref btTypedef for %s", sym_name
);
1684 tp
= mdebug_type_int
;
1688 /* Deal with range types */
1689 if (t
->bt
== btRange
)
1691 TYPE_NFIELDS (tp
) = 2;
1692 TYPE_FIELDS (tp
) = ((struct field
*)
1693 TYPE_ALLOC (tp
, 2 * sizeof (struct field
)));
1694 TYPE_FIELD_NAME (tp
, 0) = obsavestring ("Low", strlen ("Low"),
1695 ¤t_objfile
->objfile_obstack
);
1696 TYPE_FIELD_BITPOS (tp
, 0) = AUX_GET_DNLOW (bigend
, ax
);
1698 TYPE_FIELD_NAME (tp
, 1) = obsavestring ("High", strlen ("High"),
1699 ¤t_objfile
->objfile_obstack
);
1700 TYPE_FIELD_BITPOS (tp
, 1) = AUX_GET_DNHIGH (bigend
, ax
);
1704 /* Parse all the type qualifiers now. If there are more
1705 than 6 the game will continue in the next aux */
1709 #define PARSE_TQ(tq) \
1710 if (t->tq != tqNil) \
1711 ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
1723 /* mips cc 2.x and gcc never put out continued aux entries. */
1727 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1731 /* Complain for illegal continuations due to corrupt aux entries. */
1733 complaint (&symfile_complaints
, "illegal TIR continued for %s", sym_name
);
1738 /* Make up a complex type from a basic one. Type is passed by
1739 reference in TPP and side-effected as necessary. The type
1740 qualifier TQ says how to handle the aux symbols at AX for
1741 the symbol SX we are currently analyzing. BIGEND says whether
1742 aux symbols are big-endian or little-endian.
1743 Returns the number of aux symbols we parsed. */
1746 upgrade_type (int fd
, struct type
**tpp
, int tq
, union aux_ext
*ax
, int bigend
,
1752 /* Used in array processing */
1763 t
= lookup_pointer_type (*tpp
);
1768 t
= lookup_function_type (*tpp
);
1775 /* Determine and record the domain type (type of index) */
1776 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, &rndx
);
1782 rf
= AUX_GET_ISYM (bigend
, ax
);
1785 fh
= get_rfd (fd
, rf
);
1787 indx
= parse_type (fh
- debug_info
->fdr
,
1788 debug_info
->external_aux
+ fh
->iauxBase
,
1789 id
, (int *) NULL
, bigend
, sym_name
);
1791 /* The bounds type should be an integer type, but might be anything
1792 else due to corrupt aux entries. */
1793 if (TYPE_CODE (indx
) != TYPE_CODE_INT
)
1795 complaint (&symfile_complaints
,
1796 "illegal array index type for %s, assuming int", sym_name
);
1797 indx
= mdebug_type_int
;
1800 /* Get the bounds, and create the array type. */
1802 lower
= AUX_GET_DNLOW (bigend
, ax
);
1804 upper
= AUX_GET_DNHIGH (bigend
, ax
);
1806 rf
= AUX_GET_WIDTH (bigend
, ax
); /* bit size of array element */
1808 range
= create_range_type ((struct type
*) NULL
, indx
,
1811 t
= create_array_type ((struct type
*) NULL
, *tpp
, range
);
1813 /* We used to fill in the supplied array element bitsize
1814 here if the TYPE_LENGTH of the target type was zero.
1815 This happens for a `pointer to an array of anonymous structs',
1816 but in this case the array element bitsize is also zero,
1817 so nothing is gained.
1818 And we used to check the TYPE_LENGTH of the target type against
1819 the supplied array element bitsize.
1820 gcc causes a mismatch for `pointer to array of object',
1821 since the sdb directives it uses do not have a way of
1822 specifying the bitsize, but it does no harm (the
1823 TYPE_LENGTH should be correct) and we should be able to
1824 ignore the erroneous bitsize from the auxiliary entry safely.
1825 dbx seems to ignore it too. */
1827 /* TYPE_FLAG_TARGET_STUB now takes care of the zero TYPE_LENGTH
1829 if (TYPE_LENGTH (*tpp
) == 0)
1831 TYPE_FLAGS (t
) |= TYPE_FLAG_TARGET_STUB
;
1838 /* Volatile -- currently ignored */
1842 /* Const -- currently ignored */
1846 complaint (&symfile_complaints
, "unknown type qualifier 0x%x", tq
);
1852 /* Parse a procedure descriptor record PR. Note that the procedure is
1853 parsed _after_ the local symbols, now we just insert the extra
1854 information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
1855 already been placed in the procedure's main block. Note also that
1856 images that have been partially stripped (ld -x) have been deprived
1857 of local symbols, and we have to cope with them here. FIRST_OFF is
1858 the offset of the first procedure for this FDR; we adjust the
1859 address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab
1860 to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
1861 in question, or NULL to use top_stack->cur_block. */
1863 static void parse_procedure (PDR
*, struct symtab
*, struct partial_symtab
*);
1866 parse_procedure (PDR
*pr
, struct symtab
*search_symtab
,
1867 struct partial_symtab
*pst
)
1869 struct symbol
*s
, *i
;
1871 struct mips_extra_func_info
*e
;
1874 /* Simple rule to find files linked "-x" */
1875 if (cur_fdr
->rss
== -1)
1879 /* Static procedure at address pr->adr. Sigh. */
1880 /* FIXME-32x64. assuming pr->adr fits in long. */
1881 complaint (&symfile_complaints
,
1882 "can't handle PDR for static proc at 0x%lx",
1883 (unsigned long) pr
->adr
);
1891 (*debug_swap
->swap_ext_in
) (cur_bfd
,
1892 ((char *) debug_info
->external_ext
1894 * debug_swap
->external_ext_size
)),
1896 sh_name
= debug_info
->ssext
+ she
.asym
.iss
;
1904 (*debug_swap
->swap_sym_in
) (cur_bfd
,
1905 ((char *) debug_info
->external_sym
1906 + ((cur_fdr
->isymBase
+ pr
->isym
)
1907 * debug_swap
->external_sym_size
)),
1909 sh_name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
1912 if (search_symtab
!= NULL
)
1915 /* This loses both in the case mentioned (want a static, find a global),
1916 but also if we are looking up a non-mangled name which happens to
1917 match the name of a mangled function. */
1918 /* We have to save the cur_fdr across the call to lookup_symbol.
1919 If the pdr is for a static function and if a global function with
1920 the same name exists, lookup_symbol will eventually read in the symtab
1921 for the global function and clobber cur_fdr. */
1922 FDR
*save_cur_fdr
= cur_fdr
;
1923 s
= lookup_symbol (sh_name
, NULL
, VAR_DOMAIN
, 0, NULL
);
1924 cur_fdr
= save_cur_fdr
;
1928 BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab
), STATIC_BLOCK
),
1934 s
= mylookup_symbol (sh_name
, top_stack
->cur_block
,
1935 VAR_DOMAIN
, LOC_BLOCK
);
1939 b
= SYMBOL_BLOCK_VALUE (s
);
1943 complaint (&symfile_complaints
, "PDR for %s, but no symbol", sh_name
);
1947 /* FIXME -- delete. We can't do symbol allocation now; it's all done. */
1948 s
= new_symbol (sh_name
);
1949 SYMBOL_DOMAIN (s
) = VAR_DOMAIN
;
1950 SYMBOL_CLASS (s
) = LOC_BLOCK
;
1951 /* Donno its type, hope int is ok */
1952 SYMBOL_TYPE (s
) = lookup_function_type (mdebug_type_int
);
1953 add_symbol (s
, top_stack
->cur_block
);
1954 /* Wont have symbols for this one */
1956 SYMBOL_BLOCK_VALUE (s
) = b
;
1957 BLOCK_FUNCTION (b
) = s
;
1958 BLOCK_START (b
) = pr
->adr
;
1959 /* BOUND used to be the end of procedure's text, but the
1960 argument is no longer passed in. */
1961 BLOCK_END (b
) = bound
;
1962 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
1963 add_block (b
, top_stack
->cur_st
);
1967 i
= mylookup_symbol (MIPS_EFI_SYMBOL_NAME
, b
, LABEL_DOMAIN
, LOC_CONST
);
1971 e
= (struct mips_extra_func_info
*) SYMBOL_VALUE (i
);
1973 e
->pdr
.isym
= (long) s
;
1975 /* GDB expects the absolute function start address for the
1976 procedure descriptor in e->pdr.adr.
1977 As the address in the procedure descriptor is usually relative,
1978 we would have to relocate e->pdr.adr with cur_fdr->adr and
1979 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)).
1980 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
1981 in shared libraries on some systems, and on other systems
1982 e->pdr.adr is sometimes offset by a bogus value.
1983 To work around these problems, we replace e->pdr.adr with
1984 the start address of the function. */
1985 e
->pdr
.adr
= BLOCK_START (b
);
1987 /* Correct incorrect setjmp procedure descriptor from the library
1988 to make backtrace through setjmp work. */
1989 if (e
->pdr
.pcreg
== 0
1990 && strcmp (sh_name
, "setjmp") == 0)
1992 complaint (&symfile_complaints
, "fixing bad setjmp PDR from libc");
1993 e
->pdr
.pcreg
= RA_REGNUM
;
1994 e
->pdr
.regmask
= 0x80000000;
1995 e
->pdr
.regoffset
= -4;
1999 /* It would be reasonable that functions that have been compiled
2000 without debugging info have a btNil type for their return value,
2001 and functions that are void and are compiled with debugging info
2003 gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
2004 to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
2006 The glevel field in cur_fdr could be used to determine the presence
2007 of debugging info, but GCC doesn't always pass the -g switch settings
2008 to the assembler and GAS doesn't set the glevel field from the -g switch
2010 To work around these problems, the return value type of a TYPE_CODE_VOID
2011 function is adjusted accordingly if no debugging info was found in the
2012 compilation unit. */
2014 if (processing_gcc_compilation
== 0
2015 && found_ecoff_debugging_info
== 0
2016 && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s
))) == TYPE_CODE_VOID
)
2017 SYMBOL_TYPE (s
) = nodebug_func_symbol_type
;
2020 /* Relocate the extra function info pointed to by the symbol table. */
2023 ecoff_relocate_efi (struct symbol
*sym
, CORE_ADDR delta
)
2025 struct mips_extra_func_info
*e
;
2027 e
= (struct mips_extra_func_info
*) SYMBOL_VALUE (sym
);
2029 e
->pdr
.adr
+= delta
;
2032 /* Parse the external symbol ES. Just call parse_symbol() after
2033 making sure we know where the aux are for it.
2034 BIGEND says whether aux entries are big-endian or little-endian.
2036 This routine clobbers top_stack->cur_block and ->cur_st. */
2038 static void parse_external (EXTR
*, int, struct section_offsets
*,
2042 parse_external (EXTR
*es
, int bigend
, struct section_offsets
*section_offsets
,
2043 struct objfile
*objfile
)
2047 if (es
->ifd
!= ifdNil
)
2050 cur_fdr
= debug_info
->fdr
+ cur_fd
;
2051 ax
= debug_info
->external_aux
+ cur_fdr
->iauxBase
;
2055 cur_fdr
= debug_info
->fdr
;
2059 /* Reading .o files */
2060 if (SC_IS_UNDEF (es
->asym
.sc
) || es
->asym
.sc
== scNil
)
2063 switch (es
->asym
.st
)
2066 /* These are generated for static symbols in .o files,
2087 /* FIXME: Turn this into a complaint? */
2089 printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
2090 what
, debug_info
->ssext
+ es
->asym
.iss
,
2091 fdr_name (cur_fdr
));
2095 switch (es
->asym
.st
)
2099 /* There is no need to parse the external procedure symbols.
2100 If they are from objects compiled without -g, their index will
2101 be indexNil, and the symbol definition from the minimal symbol
2102 is preferrable (yielding a function returning int instead of int).
2103 If the index points to a local procedure symbol, the local
2104 symbol already provides the correct type.
2105 Note that the index of the external procedure symbol points
2106 to the local procedure symbol in the local symbol table, and
2107 _not_ to the auxiliary symbol info. */
2111 /* Global common symbols are resolved by the runtime loader,
2113 if (SC_IS_COMMON (es
->asym
.sc
))
2116 /* Note that the case of a symbol with indexNil must be handled
2117 anyways by parse_symbol(). */
2118 parse_symbol (&es
->asym
, ax
, (char *) NULL
, bigend
, section_offsets
, objfile
);
2125 /* Parse the line number info for file descriptor FH into
2126 GDB's linetable LT. MIPS' encoding requires a little bit
2127 of magic to get things out. Note also that MIPS' line
2128 numbers can go back and forth, apparently we can live
2129 with that and do not need to reorder our linetables */
2131 static void parse_lines (FDR
*, PDR
*, struct linetable
*, int,
2132 struct partial_symtab
*, CORE_ADDR
);
2135 parse_lines (FDR
*fh
, PDR
*pr
, struct linetable
*lt
, int maxlines
,
2136 struct partial_symtab
*pst
, CORE_ADDR lowest_pdr_addr
)
2138 unsigned char *base
;
2140 int delta
, count
, lineno
= 0;
2142 if (fh
->cbLine
== 0)
2145 /* Scan by procedure descriptors */
2147 for (j
= 0; j
< fh
->cpd
; j
++, pr
++)
2151 unsigned char *halt
;
2153 /* No code for this one */
2154 if (pr
->iline
== ilineNil
||
2155 pr
->lnLow
== -1 || pr
->lnHigh
== -1)
2158 /* Determine start and end address of compressed line bytes for
2160 base
= debug_info
->line
+ fh
->cbLineOffset
;
2161 if (j
!= (fh
->cpd
- 1))
2162 halt
= base
+ pr
[1].cbLineOffset
;
2164 halt
= base
+ fh
->cbLine
;
2165 base
+= pr
->cbLineOffset
;
2167 adr
= pst
->textlow
+ pr
->adr
- lowest_pdr_addr
;
2169 l
= adr
>> 2; /* in words */
2170 for (lineno
= pr
->lnLow
; base
< halt
;)
2172 count
= *base
& 0x0f;
2173 delta
= *base
++ >> 4;
2178 delta
= (base
[0] << 8) | base
[1];
2179 if (delta
>= 0x8000)
2183 lineno
+= delta
; /* first delta is 0 */
2185 /* Complain if the line table overflows. Could happen
2186 with corrupt binaries. */
2187 if (lt
->nitems
>= maxlines
)
2189 complaint (&symfile_complaints
,
2190 "guessed size of linetable for %s incorrectly",
2194 k
= add_line (lt
, lineno
, l
, k
);
2201 function_outside_compilation_unit_complaint (const char *arg1
)
2203 complaint (&symfile_complaints
,
2204 "function `%s' appears to be defined outside of all compilation units",
2208 /* Master parsing procedure for first-pass reading of file symbols
2209 into a partial_symtab. */
2212 parse_partial_symbols (struct objfile
*objfile
)
2214 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
2215 const bfd_size_type external_rfd_size
= debug_swap
->external_rfd_size
;
2216 const bfd_size_type external_ext_size
= debug_swap
->external_ext_size
;
2217 void (*const swap_ext_in
) (bfd
*, void *, EXTR
*) = debug_swap
->swap_ext_in
;
2218 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
2219 void (*const swap_rfd_in
) (bfd
*, void *, RFDT
*) = debug_swap
->swap_rfd_in
;
2221 HDRR
*hdr
= &debug_info
->symbolic_header
;
2222 /* Running pointers */
2230 struct partial_symtab
*pst
;
2231 int textlow_not_set
= 1;
2232 int past_first_source_file
= 0;
2234 /* List of current psymtab's include files */
2235 char **psymtab_include_list
;
2236 int includes_allocated
;
2239 struct pst_map
*fdr_to_pst
;
2240 /* Index within current psymtab dependency list */
2241 struct partial_symtab
**dependency_list
;
2242 int dependencies_used
, dependencies_allocated
;
2243 struct cleanup
*old_chain
;
2245 enum language prev_language
;
2246 asection
*text_sect
;
2247 int relocatable
= 0;
2249 /* Irix 5.2 shared libraries have a fh->adr field of zero, but
2250 the shared libraries are prelinked at a high memory address.
2251 We have to adjust the start address of the object file for this case,
2252 by setting it to the start address of the first procedure in the file.
2253 But we should do no adjustments if we are debugging a .o file, where
2254 the text section (and fh->adr) really starts at zero. */
2255 text_sect
= bfd_get_section_by_name (cur_bfd
, ".text");
2256 if (text_sect
!= NULL
2257 && (bfd_get_section_flags (cur_bfd
, text_sect
) & SEC_RELOC
))
2260 extern_tab
= (EXTR
*) obstack_alloc (&objfile
->objfile_obstack
,
2261 sizeof (EXTR
) * hdr
->iextMax
);
2263 includes_allocated
= 30;
2265 psymtab_include_list
= (char **) alloca (includes_allocated
*
2267 next_symbol_text_func
= mdebug_next_symbol_text
;
2269 dependencies_allocated
= 30;
2270 dependencies_used
= 0;
2272 (struct partial_symtab
**) alloca (dependencies_allocated
*
2273 sizeof (struct partial_symtab
*));
2275 last_source_file
= NULL
;
2280 * Only parse the Local and External symbols, and the Relative FDR.
2281 * Fixup enough of the loader symtab to be able to use it.
2282 * Allocate space only for the file's portions we need to
2287 max_glevel
= MIN_GLEVEL
;
2289 /* Allocate the map FDR -> PST.
2290 Minor hack: -O3 images might claim some global data belongs
2291 to FDR -1. We`ll go along with that */
2292 fdr_to_pst
= (struct pst_map
*) xzalloc ((hdr
->ifdMax
+ 1) * sizeof *fdr_to_pst
);
2293 old_chain
= make_cleanup (xfree
, fdr_to_pst
);
2296 struct partial_symtab
*pst
= new_psymtab ("", objfile
);
2297 fdr_to_pst
[-1].pst
= pst
;
2301 /* Allocate the global pending list. */
2303 ((struct mdebug_pending
**)
2304 obstack_alloc (&objfile
->objfile_obstack
,
2305 hdr
->ifdMax
* sizeof (struct mdebug_pending
*)));
2306 memset (pending_list
, 0,
2307 hdr
->ifdMax
* sizeof (struct mdebug_pending
*));
2309 /* Pass 0 over external syms: swap them in. */
2310 ext_block
= (EXTR
*) xmalloc (hdr
->iextMax
* sizeof (EXTR
));
2311 make_cleanup (xfree
, ext_block
);
2313 ext_out
= (char *) debug_info
->external_ext
;
2314 ext_out_end
= ext_out
+ hdr
->iextMax
* external_ext_size
;
2316 for (; ext_out
< ext_out_end
; ext_out
+= external_ext_size
, ext_in
++)
2317 (*swap_ext_in
) (cur_bfd
, ext_out
, ext_in
);
2319 /* Pass 1 over external syms: Presize and partition the list */
2321 ext_in_end
= ext_in
+ hdr
->iextMax
;
2322 for (; ext_in
< ext_in_end
; ext_in
++)
2324 /* See calls to complain below. */
2325 if (ext_in
->ifd
>= -1
2326 && ext_in
->ifd
< hdr
->ifdMax
2327 && ext_in
->asym
.iss
>= 0
2328 && ext_in
->asym
.iss
< hdr
->issExtMax
)
2329 fdr_to_pst
[ext_in
->ifd
].n_globals
++;
2332 /* Pass 1.5 over files: partition out global symbol space */
2334 for (f_idx
= -1; f_idx
< hdr
->ifdMax
; f_idx
++)
2336 fdr_to_pst
[f_idx
].globals_offset
= s_idx
;
2337 s_idx
+= fdr_to_pst
[f_idx
].n_globals
;
2338 fdr_to_pst
[f_idx
].n_globals
= 0;
2343 For ECOFF in ELF, we skip the creation of the minimal symbols.
2344 The ECOFF symbols should be a subset of the Elf symbols, and the
2345 section information of the elf symbols will be more accurate.
2346 FIXME! What about Irix 5's native linker?
2348 By default, Elf sections which don't exist in ECOFF
2349 get put in ECOFF's absolute section by the gnu linker.
2350 Since absolute sections don't get relocated, we
2351 end up calculating an address different from that of
2352 the symbol's minimal symbol (created earlier from the
2355 To fix this, either :
2356 1) don't create the duplicate symbol
2357 (assumes ECOFF symtab is a subset of the ELF symtab;
2358 assumes no side-effects result from ignoring ECOFF symbol)
2359 2) create it, only if lookup for existing symbol in ELF's minimal
2362 assumes no side-effects result from ignoring ECOFF symbol)
2363 3) create it, but lookup ELF's minimal symbol and use it's section
2364 during relocation, then modify "uniqify" phase to merge and
2365 eliminate the duplicate symbol
2366 (highly inefficient)
2368 I've implemented #1 here...
2369 Skip the creation of the minimal symbols based on the ECOFF
2372 /* Pass 2 over external syms: fill in external symbols */
2374 ext_in_end
= ext_in
+ hdr
->iextMax
;
2375 for (; ext_in
< ext_in_end
; ext_in
++)
2377 enum minimal_symbol_type ms_type
= mst_text
;
2378 CORE_ADDR svalue
= ext_in
->asym
.value
;
2380 /* The Irix 5 native tools seem to sometimes generate bogus
2381 external symbols. */
2382 if (ext_in
->ifd
< -1 || ext_in
->ifd
>= hdr
->ifdMax
)
2384 complaint (&symfile_complaints
,
2385 "bad ifd for external symbol: %d (max %ld)", ext_in
->ifd
,
2389 if (ext_in
->asym
.iss
< 0 || ext_in
->asym
.iss
>= hdr
->issExtMax
)
2391 complaint (&symfile_complaints
,
2392 "bad iss for external symbol: %ld (max %ld)",
2393 ext_in
->asym
.iss
, hdr
->issExtMax
);
2397 extern_tab
[fdr_to_pst
[ext_in
->ifd
].globals_offset
2398 + fdr_to_pst
[ext_in
->ifd
].n_globals
++] = *ext_in
;
2401 if (SC_IS_UNDEF (ext_in
->asym
.sc
) || ext_in
->asym
.sc
== scNil
)
2405 /* Pass 3 over files, over local syms: fill in static symbols */
2406 name
= debug_info
->ssext
+ ext_in
->asym
.iss
;
2408 /* Process ECOFF Symbol Types and Storage Classes */
2409 switch (ext_in
->asym
.st
)
2412 /* Beginnning of Procedure */
2413 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2416 /* Load time only static procs */
2417 ms_type
= mst_file_text
;
2418 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2421 /* External symbol */
2422 if (SC_IS_COMMON (ext_in
->asym
.sc
))
2424 /* The value of a common symbol is its size, not its address.
2428 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2431 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2433 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2436 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
2438 else if (SC_IS_SBSS (ext_in
->asym
.sc
))
2441 svalue
+= ANOFFSET (objfile
->section_offsets
,
2442 get_section_index (objfile
, ".sbss"));
2450 /* On certain platforms, some extra label symbols can be
2451 generated by the linker. One possible usage for this kind
2452 of symbols is to represent the address of the begining of a
2453 given section. For instance, on Tru64 5.1, the address of
2454 the _ftext label is the start address of the .text section.
2456 The storage class of these symbols is usually directly
2457 related to the section to which the symbol refers. For
2458 instance, on Tru64 5.1, the storage class for the _fdata
2459 label is scData, refering to the .data section.
2461 It is actually possible that the section associated to the
2462 storage class of the label does not exist. On True64 5.1
2463 for instance, the libm.so shared library does not contain
2464 any .data section, although it contains a _fpdata label
2465 which storage class is scData... Since these symbols are
2466 usually useless for the debugger user anyway, we just
2467 discard these symbols.
2470 if (SC_IS_TEXT (ext_in
->asym
.sc
))
2472 if (objfile
->sect_index_text
== -1)
2475 ms_type
= mst_file_text
;
2476 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2478 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2480 if (objfile
->sect_index_data
== -1)
2483 ms_type
= mst_file_data
;
2484 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2486 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2488 if (objfile
->sect_index_bss
== -1)
2491 ms_type
= mst_file_bss
;
2492 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
2494 else if (SC_IS_SBSS (ext_in
->asym
.sc
))
2496 const int sbss_sect_index
= get_section_index (objfile
, ".sbss");
2498 if (sbss_sect_index
== -1)
2501 ms_type
= mst_file_bss
;
2502 svalue
+= ANOFFSET (objfile
->section_offsets
, sbss_sect_index
);
2509 /* The alpha has the section start addresses in stLocal symbols
2510 whose name starts with a `.'. Skip those but complain for all
2511 other stLocal symbols.
2512 Irix6 puts the section start addresses in stNil symbols, skip
2518 ms_type
= mst_unknown
;
2519 unknown_ext_complaint (name
);
2521 if (!ECOFF_IN_ELF (cur_bfd
))
2522 prim_record_minimal_symbol (name
, svalue
, ms_type
, objfile
);
2525 /* Pass 3 over files, over local syms: fill in static symbols */
2526 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
2528 struct partial_symtab
*save_pst
;
2532 cur_fdr
= fh
= debug_info
->fdr
+ f_idx
;
2536 fdr_to_pst
[f_idx
].pst
= NULL
;
2540 /* Determine the start address for this object file from the
2541 file header and relocate it, except for Irix 5.2 zero fh->adr. */
2545 if (relocatable
|| textlow
!= 0)
2546 textlow
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2550 pst
= start_psymtab_common (objfile
, objfile
->section_offsets
,
2553 objfile
->global_psymbols
.next
,
2554 objfile
->static_psymbols
.next
);
2555 pst
->read_symtab_private
= ((char *)
2556 obstack_alloc (&objfile
->objfile_obstack
,
2557 sizeof (struct symloc
)));
2558 memset (pst
->read_symtab_private
, 0, sizeof (struct symloc
));
2561 FDR_IDX (pst
) = f_idx
;
2562 CUR_BFD (pst
) = cur_bfd
;
2563 DEBUG_SWAP (pst
) = debug_swap
;
2564 DEBUG_INFO (pst
) = debug_info
;
2565 PENDING_LIST (pst
) = pending_list
;
2567 /* The way to turn this into a symtab is to call... */
2568 pst
->read_symtab
= mdebug_psymtab_to_symtab
;
2570 /* Set up language for the pst.
2571 The language from the FDR is used if it is unambigious (e.g. cfront
2572 with native cc and g++ will set the language to C).
2573 Otherwise we have to deduce the language from the filename.
2574 Native ecoff has every header file in a separate FDR, so
2575 deduce_language_from_filename will return language_unknown for
2576 a header file, which is not what we want.
2577 But the FDRs for the header files are after the FDR for the source
2578 file, so we can assign the language of the source file to the
2579 following header files. Then we save the language in the private
2580 pst data so that we can reuse it when building symtabs. */
2581 prev_language
= psymtab_language
;
2585 case langCplusplusV2
:
2586 psymtab_language
= language_cplus
;
2589 psymtab_language
= deduce_language_from_filename (fdr_name (fh
));
2592 if (psymtab_language
== language_unknown
)
2593 psymtab_language
= prev_language
;
2594 PST_PRIVATE (pst
)->pst_language
= psymtab_language
;
2596 pst
->texthigh
= pst
->textlow
;
2598 /* For stabs-in-ecoff files, the second symbol must be @stab.
2599 This symbol is emitted by mips-tfile to signal that the
2600 current object file uses encapsulated stabs instead of mips
2601 ecoff for local symbols. (It is the second symbol because
2602 the first symbol is the stFile used to signal the start of a
2604 processing_gcc_compilation
= 0;
2607 (*swap_sym_in
) (cur_bfd
,
2608 ((char *) debug_info
->external_sym
2609 + (fh
->isymBase
+ 1) * external_sym_size
),
2611 if (strcmp (debug_info
->ss
+ fh
->issBase
+ sh
.iss
,
2613 processing_gcc_compilation
= 2;
2616 if (processing_gcc_compilation
!= 0)
2618 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
2623 (*swap_sym_in
) (cur_bfd
,
2624 (((char *) debug_info
->external_sym
)
2625 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
2627 type_code
= ECOFF_UNMARK_STAB (sh
.index
);
2628 if (!ECOFF_IS_STAB (&sh
))
2630 if (sh
.st
== stProc
|| sh
.st
== stStaticProc
)
2635 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2636 if (sh
.st
== stStaticProc
)
2638 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2639 prim_record_minimal_symbol_and_info (namestring
,
2643 SECT_OFF_TEXT (objfile
),
2647 procaddr
= sh
.value
;
2649 isym
= AUX_GET_ISYM (fh
->fBigendian
,
2650 (debug_info
->external_aux
2653 (*swap_sym_in
) (cur_bfd
,
2654 ((char *) debug_info
->external_sym
2655 + ((fh
->isymBase
+ isym
- 1)
2656 * external_sym_size
)),
2660 CORE_ADDR high
= procaddr
+ sh
.value
;
2662 /* Kludge for Irix 5.2 zero fh->adr. */
2664 && (pst
->textlow
== 0 || procaddr
< pst
->textlow
))
2665 pst
->textlow
= procaddr
;
2666 if (high
> pst
->texthigh
)
2667 pst
->texthigh
= high
;
2670 else if (sh
.st
== stStatic
)
2685 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2686 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2687 prim_record_minimal_symbol_and_info (namestring
,
2691 SECT_OFF_DATA (objfile
),
2697 /* FIXME! Shouldn't this use cases for bss,
2698 then have the default be abs? */
2699 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2700 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
2701 prim_record_minimal_symbol_and_info (namestring
,
2705 SECT_OFF_BSS (objfile
),
2713 /* Handle stabs continuation */
2715 char *stabstring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2716 int len
= strlen (stabstring
);
2717 while (stabstring
[len
- 1] == '\\')
2720 char *stabstring1
= stabstring
;
2724 /* Ignore continuation char from 1st string */
2727 /* Read next stabstring */
2729 (*swap_sym_in
) (cur_bfd
,
2730 (((char *) debug_info
->external_sym
)
2731 + (fh
->isymBase
+ cur_sdx
)
2732 * external_sym_size
),
2734 stabstring2
= debug_info
->ss
+ fh
->issBase
+ sh2
.iss
;
2735 len2
= strlen (stabstring2
);
2737 /* Concatinate stabstring2 with stabstring1 */
2739 && stabstring
!= debug_info
->ss
+ fh
->issBase
+ sh
.iss
)
2740 stabstring
= xrealloc (stabstring
, len
+ len2
+ 1);
2743 stabstring
= xmalloc (len
+ len2
+ 1);
2744 strcpy (stabstring
, stabstring1
);
2746 strcpy (stabstring
+ len
, stabstring2
);
2754 * Standard, external, non-debugger, symbols
2757 case N_TEXT
| N_EXT
:
2758 case N_NBTEXT
| N_EXT
:
2759 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2762 case N_DATA
| N_EXT
:
2763 case N_NBDATA
| N_EXT
:
2764 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2769 case N_NBBSS
| N_EXT
:
2770 case N_SETV
| N_EXT
: /* FIXME, is this in BSS? */
2771 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
2778 /* Standard, local, non-debugger, symbols */
2782 /* We need to be able to deal with both N_FN or N_TEXT,
2783 because we have no way of knowing whether the sys-supplied ld
2784 or GNU ld was used to make the executable. Sequents throw
2785 in another wrinkle -- they renumbered N_FN. */
2793 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2796 case N_UNDF
| N_EXT
:
2797 continue; /* Just undefined, not COMMON */
2802 /* Lots of symbol types we can just ignore. */
2809 /* Keep going . . . */
2812 * Special symbol types for GNU
2815 case N_INDR
| N_EXT
:
2817 case N_SETA
| N_EXT
:
2819 case N_SETT
| N_EXT
:
2821 case N_SETD
| N_EXT
:
2823 case N_SETB
| N_EXT
:
2834 static int prev_so_symnum
= -10;
2835 static int first_so_symnum
;
2837 int prev_textlow_not_set
;
2839 valu
= sh
.value
+ ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
2841 prev_textlow_not_set
= textlow_not_set
;
2843 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
2844 /* A zero value is probably an indication for the SunPRO 3.0
2845 compiler. end_psymtab explicitly tests for zero, so
2846 don't relocate it. */
2850 textlow_not_set
= 1;
2854 textlow_not_set
= 0;
2856 textlow_not_set
= 0;
2858 past_first_source_file
= 1;
2860 if (prev_so_symnum
!= symnum
- 1)
2861 { /* Here if prev stab wasn't N_SO */
2862 first_so_symnum
= symnum
;
2866 pst
= (struct partial_symtab
*) 0;
2868 dependencies_used
= 0;
2872 prev_so_symnum
= symnum
;
2874 /* End the current partial symtab and start a new one */
2876 /* SET_NAMESTRING ();*/
2877 namestring
= stabstring
;
2879 /* Null name means end of .o file. Don't start a new one. */
2880 if (*namestring
== '\000')
2883 /* Some compilers (including gcc) emit a pair of initial N_SOs.
2884 The first one is a directory name; the second the file name.
2885 If pst exists, is empty, and has a filename ending in '/',
2886 we assume the previous N_SO was a directory name. */
2888 p
= strrchr (namestring
, '/');
2889 if (p
&& *(p
+ 1) == '\000')
2890 continue; /* Simply ignore directory name SOs */
2892 /* Some other compilers (C++ ones in particular) emit useless
2893 SOs for non-existant .c files. We ignore all subsequent SOs that
2894 immediately follow the first. */
2906 enum language tmp_language
;
2907 /* Mark down an include file in the current psymtab */
2909 /* SET_NAMESTRING ();*/
2910 namestring
= stabstring
;
2912 tmp_language
= deduce_language_from_filename (namestring
);
2914 /* Only change the psymtab's language if we've learned
2915 something useful (eg. tmp_language is not language_unknown).
2916 In addition, to match what start_subfile does, never change
2918 if (tmp_language
!= language_unknown
2919 && (tmp_language
!= language_c
2920 || psymtab_language
!= language_cplus
))
2921 psymtab_language
= tmp_language
;
2923 /* In C++, one may expect the same filename to come round many
2924 times, when code is coming alternately from the main file
2925 and from inline functions in other files. So I check to see
2926 if this is a file we've seen before -- either the main
2927 source file, or a previously included file.
2929 This seems to be a lot of time to be spending on N_SOL, but
2930 things like "break c-exp.y:435" need to work (I
2931 suppose the psymtab_include_list could be hashed or put
2932 in a binary tree, if profiling shows this is a major hog). */
2933 if (pst
&& strcmp (namestring
, pst
->filename
) == 0)
2937 for (i
= 0; i
< includes_used
; i
++)
2938 if (strcmp (namestring
,
2939 psymtab_include_list
[i
]) == 0)
2948 psymtab_include_list
[includes_used
++] = namestring
;
2949 if (includes_used
>= includes_allocated
)
2951 char **orig
= psymtab_include_list
;
2953 psymtab_include_list
= (char **)
2954 alloca ((includes_allocated
*= 2) *
2956 memcpy (psymtab_include_list
, orig
,
2957 includes_used
* sizeof (char *));
2961 case N_LSYM
: /* Typedef or automatic variable. */
2962 case N_STSYM
: /* Data seg var -- static */
2963 case N_LCSYM
: /* BSS " */
2964 case N_ROSYM
: /* Read-only data seg var -- static. */
2965 case N_NBSTS
: /* Gould nobase. */
2966 case N_NBLCS
: /* symbols. */
2968 case N_GSYM
: /* Global (extern) variable; can be
2969 data or bss (sigh FIXME). */
2971 /* Following may probably be ignored; I'll leave them here
2972 for now (until I do Pascal and Modula 2 extensions). */
2974 case N_PC
: /* I may or may not need this; I
2976 case N_M2C
: /* I suspect that I can ignore this here. */
2977 case N_SCOPE
: /* Same. */
2979 /* SET_NAMESTRING ();*/
2980 namestring
= stabstring
;
2981 p
= (char *) strchr (namestring
, ':');
2983 continue; /* Not a debugging symbol. */
2987 /* Main processing section for debugging symbols which
2988 the initial read through the symbol tables needs to worry
2989 about. If we reach this point, the symbol which we are
2990 considering is definitely one we are interested in.
2991 p must also contain the (valid) index into the namestring
2992 which indicates the debugging type symbol. */
2997 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
2998 #ifdef STATIC_TRANSFORM_NAME
2999 namestring
= STATIC_TRANSFORM_NAME (namestring
);
3001 add_psymbol_to_list (namestring
, p
- namestring
,
3002 VAR_DOMAIN
, LOC_STATIC
,
3003 &objfile
->static_psymbols
,
3005 psymtab_language
, objfile
);
3008 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
3009 /* The addresses in these entries are reported to be
3010 wrong. See the code that reads 'G's for symtabs. */
3011 add_psymbol_to_list (namestring
, p
- namestring
,
3012 VAR_DOMAIN
, LOC_STATIC
,
3013 &objfile
->global_psymbols
,
3015 psymtab_language
, objfile
);
3019 /* When a 'T' entry is defining an anonymous enum, it
3020 may have a name which is the empty string, or a
3021 single space. Since they're not really defining a
3022 symbol, those shouldn't go in the partial symbol
3023 table. We do pick up the elements of such enums at
3024 'check_enum:', below. */
3025 if (p
>= namestring
+ 2
3026 || (p
== namestring
+ 1
3027 && namestring
[0] != ' '))
3029 add_psymbol_to_list (namestring
, p
- namestring
,
3030 STRUCT_DOMAIN
, LOC_TYPEDEF
,
3031 &objfile
->static_psymbols
,
3033 psymtab_language
, objfile
);
3036 /* Also a typedef with the same name. */
3037 add_psymbol_to_list (namestring
, p
- namestring
,
3038 VAR_DOMAIN
, LOC_TYPEDEF
,
3039 &objfile
->static_psymbols
,
3041 psymtab_language
, objfile
);
3047 if (p
!= namestring
) /* a name is there, not just :T... */
3049 add_psymbol_to_list (namestring
, p
- namestring
,
3050 VAR_DOMAIN
, LOC_TYPEDEF
,
3051 &objfile
->static_psymbols
,
3053 psymtab_language
, objfile
);
3056 /* If this is an enumerated type, we need to
3057 add all the enum constants to the partial symbol
3058 table. This does not cover enums without names, e.g.
3059 "enum {a, b} c;" in C, but fortunately those are
3060 rare. There is no way for GDB to find those from the
3061 enum type without spending too much time on it. Thus
3062 to solve this problem, the compiler needs to put out the
3063 enum in a nameless type. GCC2 does this. */
3065 /* We are looking for something of the form
3066 <name> ":" ("t" | "T") [<number> "="] "e"
3067 {<constant> ":" <value> ","} ";". */
3069 /* Skip over the colon and the 't' or 'T'. */
3071 /* This type may be given a number. Also, numbers can come
3072 in pairs like (0,26). Skip over it. */
3073 while ((*p
>= '0' && *p
<= '9')
3074 || *p
== '(' || *p
== ',' || *p
== ')'
3080 /* The aix4 compiler emits extra crud before the members. */
3083 /* Skip over the type (?). */
3087 /* Skip over the colon. */
3091 /* We have found an enumerated type. */
3092 /* According to comments in read_enum_type
3093 a comma could end it instead of a semicolon.
3094 I don't know where that happens.
3096 while (*p
&& *p
!= ';' && *p
!= ',')
3100 /* Check for and handle cretinous dbx symbol name
3102 if (*p
== '\\' || (*p
== '?' && p
[1] == '\0'))
3103 p
= next_symbol_text (objfile
);
3105 /* Point to the character after the name
3106 of the enum constant. */
3107 for (q
= p
; *q
&& *q
!= ':'; q
++)
3109 /* Note that the value doesn't matter for
3110 enum constants in psymtabs, just in symtabs. */
3111 add_psymbol_to_list (p
, q
- p
,
3112 VAR_DOMAIN
, LOC_CONST
,
3113 &objfile
->static_psymbols
, 0,
3114 0, psymtab_language
, objfile
);
3115 /* Point past the name. */
3117 /* Skip over the value. */
3118 while (*p
&& *p
!= ',')
3120 /* Advance past the comma. */
3127 /* Constant, e.g. from "const" in Pascal. */
3128 add_psymbol_to_list (namestring
, p
- namestring
,
3129 VAR_DOMAIN
, LOC_CONST
,
3130 &objfile
->static_psymbols
, sh
.value
,
3131 0, psymtab_language
, objfile
);
3137 int name_len
= p
- namestring
;
3138 char *name
= xmalloc (name_len
+ 1);
3139 memcpy (name
, namestring
, name_len
);
3140 name
[name_len
] = '\0';
3141 function_outside_compilation_unit_complaint (name
);
3144 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
3145 add_psymbol_to_list (namestring
, p
- namestring
,
3146 VAR_DOMAIN
, LOC_BLOCK
,
3147 &objfile
->static_psymbols
,
3149 psymtab_language
, objfile
);
3152 /* Global functions were ignored here, but now they
3153 are put into the global psymtab like one would expect.
3154 They're also in the minimal symbol table. */
3158 int name_len
= p
- namestring
;
3159 char *name
= xmalloc (name_len
+ 1);
3160 memcpy (name
, namestring
, name_len
);
3161 name
[name_len
] = '\0';
3162 function_outside_compilation_unit_complaint (name
);
3165 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
3166 add_psymbol_to_list (namestring
, p
- namestring
,
3167 VAR_DOMAIN
, LOC_BLOCK
,
3168 &objfile
->global_psymbols
,
3170 psymtab_language
, objfile
);
3173 /* Two things show up here (hopefully); static symbols of
3174 local scope (static used inside braces) or extensions
3175 of structure symbols. We can ignore both. */
3189 case '#': /* for symbol identification (used in live ranges) */
3193 /* It is a C++ nested symbol. We don't need to record it
3194 (I don't think); if we try to look up foo::bar::baz,
3195 then symbols for the symtab containing foo should get
3196 read in, I think. */
3197 /* Someone says sun cc puts out symbols like
3198 /foo/baz/maclib::/usr/local/bin/maclib,
3199 which would get here with a symbol type of ':'. */
3203 /* Unexpected symbol descriptor. The second and subsequent stabs
3204 of a continued stab can show up here. The question is
3205 whether they ever can mimic a normal stab--it would be
3206 nice if not, since we certainly don't want to spend the
3207 time searching to the end of every string looking for
3210 complaint (&symfile_complaints
,
3211 "unknown symbol descriptor `%c'", p
[1]);
3213 /* Ignore it; perhaps it is an extension that we don't
3222 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
3223 /* Solaris 2 end of module, finish current partial
3224 symbol table. END_PSYMTAB will set
3225 pst->texthigh to the proper value, which is
3226 necessary if a module compiled without
3227 debugging info follows this module. */
3230 pst
= (struct partial_symtab
*) 0;
3232 dependencies_used
= 0;
3238 if (sh
.value
> save_pst
->texthigh
)
3239 save_pst
->texthigh
= sh
.value
;
3244 case N_SSYM
: /* Claim: Structure or union element.
3245 Hopefully, I can ignore this. */
3246 case N_ENTRY
: /* Alternate entry point; can ignore. */
3247 case N_MAIN
: /* Can definitely ignore this. */
3248 case N_CATCH
: /* These are GNU C++ extensions */
3249 case N_EHDECL
: /* that can safely be ignored here. */
3259 case N_NSYMS
: /* Ultrix 4.0: symbol count */
3260 case N_DEFD
: /* GNU Modula-2 */
3261 case N_ALIAS
: /* SunPro F77: alias name, ignore for now. */
3263 case N_OBJ
: /* useless types from Solaris */
3265 /* These symbols aren't interesting; don't worry about them */
3270 /* If we haven't found it yet, ignore it. It's probably some
3271 new type we don't know about yet. */
3272 complaint (&symfile_complaints
, "unknown symbol type %s",
3273 local_hex_string (type_code
)); /*CUR_SYMBOL_TYPE*/
3277 && stabstring
!= debug_info
->ss
+ fh
->issBase
+ sh
.iss
)
3280 /* end - Handle continuation */
3285 for (cur_sdx
= 0; cur_sdx
< fh
->csym
;)
3288 enum address_class
class;
3290 (*swap_sym_in
) (cur_bfd
,
3291 ((char *) debug_info
->external_sym
3292 + ((fh
->isymBase
+ cur_sdx
)
3293 * external_sym_size
)),
3296 if (ECOFF_IS_STAB (&sh
))
3302 /* Non absolute static symbols go into the minimal table. */
3303 if (SC_IS_UNDEF (sh
.sc
) || sh
.sc
== scNil
3304 || (sh
.index
== indexNil
3305 && (sh
.st
!= stStatic
|| sh
.sc
== scAbs
)))
3307 /* FIXME, premature? */
3312 name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3318 /* The value of a stEnd symbol is the displacement from the
3319 corresponding start symbol value, do not relocate it. */
3321 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
3328 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
3332 sh
.value
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
3343 prim_record_minimal_symbol_and_info (name
, sh
.value
,
3344 mst_file_text
, NULL
,
3345 SECT_OFF_TEXT (objfile
), NULL
,
3351 /* Ignore all parameter symbol records. */
3352 if (sh
.index
>= hdr
->iauxMax
)
3354 /* Should not happen, but does when cross-compiling
3355 with the MIPS compiler. FIXME -- pull later. */
3356 index_complaint (name
);
3357 new_sdx
= cur_sdx
+ 1; /* Don't skip at all */
3360 new_sdx
= AUX_GET_ISYM (fh
->fBigendian
,
3361 (debug_info
->external_aux
3365 if (new_sdx
<= cur_sdx
)
3367 /* This should not happen either... FIXME. */
3368 complaint (&symfile_complaints
,
3369 "bad proc end in aux found from symbol %s",
3371 new_sdx
= cur_sdx
+ 1; /* Don't skip backward */
3374 /* For stProc symbol records, we need to check the
3375 storage class as well, as only (stProc, scText)
3376 entries represent "real" procedures - See the
3377 Compaq document titled "Object File / Symbol Table
3378 Format Specification" for more information. If the
3379 storage class is not scText, we discard the whole
3380 block of symbol records for this stProc. */
3381 if (sh
.st
== stProc
&& sh
.sc
!= scText
)
3384 /* Usually there is a local and a global stProc symbol
3385 for a function. This means that the function name
3386 has already been entered into the mimimal symbol table
3387 while processing the global symbols in pass 2 above.
3388 One notable exception is the PROGRAM name from
3389 f77 compiled executables, it is only put out as
3390 local stProc symbol, and a global MAIN__ stProc symbol
3391 points to it. It doesn't matter though, as gdb is
3392 still able to find the PROGRAM name via the partial
3393 symbol table, and the MAIN__ symbol via the minimal
3395 if (sh
.st
== stProc
)
3396 add_psymbol_to_list (name
, strlen (name
),
3397 VAR_DOMAIN
, LOC_BLOCK
,
3398 &objfile
->global_psymbols
,
3399 0, sh
.value
, psymtab_language
, objfile
);
3401 add_psymbol_to_list (name
, strlen (name
),
3402 VAR_DOMAIN
, LOC_BLOCK
,
3403 &objfile
->static_psymbols
,
3404 0, sh
.value
, psymtab_language
, objfile
);
3406 procaddr
= sh
.value
;
3409 (*swap_sym_in
) (cur_bfd
,
3410 ((char *) debug_info
->external_sym
3411 + ((fh
->isymBase
+ cur_sdx
- 1)
3412 * external_sym_size
)),
3417 /* Kludge for Irix 5.2 zero fh->adr. */
3419 && (pst
->textlow
== 0 || procaddr
< pst
->textlow
))
3420 pst
->textlow
= procaddr
;
3422 high
= procaddr
+ sh
.value
;
3423 if (high
> pst
->texthigh
)
3424 pst
->texthigh
= high
;
3427 case stStatic
: /* Variable */
3428 if (SC_IS_DATA (sh
.sc
))
3429 prim_record_minimal_symbol_and_info (name
, sh
.value
,
3430 mst_file_data
, NULL
,
3431 SECT_OFF_DATA (objfile
),
3435 prim_record_minimal_symbol_and_info (name
, sh
.value
,
3437 SECT_OFF_BSS (objfile
),
3443 case stIndirect
: /* Irix5 forward declaration */
3444 /* Skip forward declarations from Irix5 cc */
3447 case stTypedef
: /* Typedef */
3448 /* Skip typedefs for forward declarations and opaque
3449 structs from alpha and mips cc. */
3450 if (sh
.iss
== 0 || has_opaque_xref (fh
, &sh
))
3452 class = LOC_TYPEDEF
;
3455 case stConstant
: /* Constant decl */
3462 case stBlock
: /* { }, str, un, enum */
3463 /* Do not create a partial symbol for cc unnamed aggregates
3464 and gcc empty aggregates. */
3465 if ((sh
.sc
== scInfo
3466 || SC_IS_COMMON (sh
.sc
))
3468 && sh
.index
!= cur_sdx
+ 2)
3470 add_psymbol_to_list (name
, strlen (name
),
3471 STRUCT_DOMAIN
, LOC_TYPEDEF
,
3472 &objfile
->static_psymbols
,
3474 psymtab_language
, objfile
);
3476 handle_psymbol_enumerators (objfile
, fh
, sh
.st
, sh
.value
);
3478 /* Skip over the block */
3480 if (new_sdx
<= cur_sdx
)
3482 /* This happens with the Ultrix kernel. */
3483 complaint (&symfile_complaints
,
3484 "bad aux index at block symbol %s", name
);
3485 new_sdx
= cur_sdx
+ 1; /* Don't skip backward */
3490 case stFile
: /* File headers */
3491 case stLabel
: /* Labels */
3492 case stEnd
: /* Ends of files */
3495 case stLocal
: /* Local variables */
3496 /* Normally these are skipped because we skip over
3497 all blocks we see. However, these can occur
3498 as visible symbols in a .h file that contains code. */
3502 /* Both complaints are valid: one gives symbol name,
3503 the other the offending symbol type. */
3504 complaint (&symfile_complaints
, "unknown local symbol %s",
3506 complaint (&symfile_complaints
, "with type %d", sh
.st
);
3510 /* Use this gdb symbol */
3511 add_psymbol_to_list (name
, strlen (name
),
3513 &objfile
->static_psymbols
,
3514 0, sh
.value
, psymtab_language
, objfile
);
3516 cur_sdx
++; /* Go to next file symbol */
3519 /* Now do enter the external symbols. */
3520 ext_ptr
= &extern_tab
[fdr_to_pst
[f_idx
].globals_offset
];
3521 cur_sdx
= fdr_to_pst
[f_idx
].n_globals
;
3522 PST_PRIVATE (save_pst
)->extern_count
= cur_sdx
;
3523 PST_PRIVATE (save_pst
)->extern_tab
= ext_ptr
;
3524 for (; --cur_sdx
>= 0; ext_ptr
++)
3526 enum address_class
class;
3531 if (ext_ptr
->ifd
!= f_idx
)
3532 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
3533 psh
= &ext_ptr
->asym
;
3535 /* Do not add undefined symbols to the partial symbol table. */
3536 if (SC_IS_UNDEF (psh
->sc
) || psh
->sc
== scNil
)
3539 svalue
= psh
->value
;
3544 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_TEXT (objfile
));
3551 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_DATA (objfile
));
3555 svalue
+= ANOFFSET (objfile
->section_offsets
, SECT_OFF_BSS (objfile
));
3562 /* These are generated for static symbols in .o files,
3567 /* External procedure symbols have been entered
3568 into the minimal symbol table in pass 2 above.
3569 Ignore them, as parse_external will ignore them too. */
3575 unknown_ext_complaint (debug_info
->ssext
+ psh
->iss
);
3576 /* Fall through, pretend it's global. */
3578 /* Global common symbols are resolved by the runtime loader,
3580 if (SC_IS_COMMON (psh
->sc
))
3586 name
= debug_info
->ssext
+ psh
->iss
;
3587 add_psymbol_to_list (name
, strlen (name
),
3589 &objfile
->global_psymbols
,
3591 psymtab_language
, objfile
);
3595 /* Link pst to FDR. end_psymtab returns NULL if the psymtab was
3596 empty and put on the free list. */
3597 fdr_to_pst
[f_idx
].pst
= end_psymtab (save_pst
,
3598 psymtab_include_list
, includes_used
,
3599 -1, save_pst
->texthigh
,
3600 dependency_list
, dependencies_used
, textlow_not_set
);
3602 dependencies_used
= 0;
3604 if (objfile
->ei
.entry_point
>= save_pst
->textlow
&&
3605 objfile
->ei
.entry_point
< save_pst
->texthigh
)
3607 objfile
->ei
.deprecated_entry_file_lowpc
= save_pst
->textlow
;
3608 objfile
->ei
.deprecated_entry_file_highpc
= save_pst
->texthigh
;
3611 /* The objfile has its functions reordered if this partial symbol
3612 table overlaps any other partial symbol table.
3613 We cannot assume a reordered objfile if a partial symbol table
3614 is contained within another partial symbol table, as partial symbol
3615 tables for include files with executable code are contained
3616 within the partial symbol table for the including source file,
3617 and we do not want to flag the objfile reordered for these cases.
3619 This strategy works well for Irix-5.2 shared libraries, but we
3620 might have to use a more elaborate (and slower) algorithm for
3622 save_pst
= fdr_to_pst
[f_idx
].pst
;
3623 if (save_pst
!= NULL
3624 && save_pst
->textlow
!= 0
3625 && !(objfile
->flags
& OBJF_REORDERED
))
3627 ALL_OBJFILE_PSYMTABS (objfile
, pst
)
3630 && save_pst
->textlow
>= pst
->textlow
3631 && save_pst
->textlow
< pst
->texthigh
3632 && save_pst
->texthigh
> pst
->texthigh
)
3634 objfile
->flags
|= OBJF_REORDERED
;
3641 /* Now scan the FDRs for dependencies */
3642 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
3644 fh
= f_idx
+ debug_info
->fdr
;
3645 pst
= fdr_to_pst
[f_idx
].pst
;
3647 if (pst
== (struct partial_symtab
*) NULL
)
3650 /* This should catch stabs-in-ecoff. */
3654 /* Skip the first file indirect entry as it is a self dependency
3655 for source files or a reverse .h -> .c dependency for header files. */
3656 pst
->number_of_dependencies
= 0;
3658 ((struct partial_symtab
**)
3659 obstack_alloc (&objfile
->objfile_obstack
,
3661 * sizeof (struct partial_symtab
*))));
3662 for (s_idx
= 1; s_idx
< fh
->crfd
; s_idx
++)
3666 (*swap_rfd_in
) (cur_bfd
,
3667 ((char *) debug_info
->external_rfd
3668 + (fh
->rfdBase
+ s_idx
) * external_rfd_size
),
3670 if (rh
< 0 || rh
>= hdr
->ifdMax
)
3672 complaint (&symfile_complaints
, "bad file number %ld", rh
);
3676 /* Skip self dependencies of header files. */
3680 /* Do not add to dependeny list if psymtab was empty. */
3681 if (fdr_to_pst
[rh
].pst
== (struct partial_symtab
*) NULL
)
3683 pst
->dependencies
[pst
->number_of_dependencies
++] = fdr_to_pst
[rh
].pst
;
3687 /* Remove the dummy psymtab created for -O3 images above, if it is
3688 still empty, to enable the detection of stripped executables. */
3689 if (objfile
->psymtabs
->next
== NULL
3690 && objfile
->psymtabs
->number_of_dependencies
== 0
3691 && objfile
->psymtabs
->n_global_syms
== 0
3692 && objfile
->psymtabs
->n_static_syms
== 0)
3693 objfile
->psymtabs
= NULL
;
3694 do_cleanups (old_chain
);
3697 /* If the current psymbol has an enumerated type, we need to add
3698 all the the enum constants to the partial symbol table. */
3701 handle_psymbol_enumerators (struct objfile
*objfile
, FDR
*fh
, int stype
,
3704 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
3705 void (*const swap_sym_in
) (bfd
*, void *, SYMR
*) = debug_swap
->swap_sym_in
;
3706 char *ext_sym
= ((char *) debug_info
->external_sym
3707 + ((fh
->isymBase
+ cur_sdx
+ 1) * external_sym_size
));
3717 /* It is an enumerated type if the next symbol entry is a stMember
3718 and its auxiliary index is indexNil or its auxiliary entry
3719 is a plain btNil or btVoid.
3720 Alpha cc -migrate enums are recognized by a zero index and
3721 a zero symbol value.
3722 DU 4.0 cc enums are recognized by a member type of btEnum without
3723 qualifiers and a zero symbol value. */
3724 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3725 if (sh
.st
!= stMember
)
3728 if (sh
.index
== indexNil
3729 || (sh
.index
== 0 && svalue
== 0))
3731 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
,
3732 &(debug_info
->external_aux
3733 + fh
->iauxBase
+ sh
.index
)->a_ti
,
3735 if ((tir
.bt
!= btNil
3737 && (tir
.bt
!= btEnum
|| svalue
!= 0))
3738 || tir
.tq0
!= tqNil
)
3750 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3751 if (sh
.st
!= stMember
)
3753 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3755 /* Note that the value doesn't matter for enum constants
3756 in psymtabs, just in symtabs. */
3757 add_psymbol_to_list (name
, strlen (name
),
3758 VAR_DOMAIN
, LOC_CONST
,
3759 &objfile
->static_psymbols
, 0,
3760 (CORE_ADDR
) 0, psymtab_language
, objfile
);
3761 ext_sym
+= external_sym_size
;
3765 /* Get the next symbol. OBJFILE is unused. */
3768 mdebug_next_symbol_text (struct objfile
*objfile
)
3773 (*debug_swap
->swap_sym_in
) (cur_bfd
,
3774 ((char *) debug_info
->external_sym
3775 + ((cur_fdr
->isymBase
+ cur_sdx
)
3776 * debug_swap
->external_sym_size
)),
3778 return debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3781 /* Ancillary function to psymtab_to_symtab(). Does all the work
3782 for turning the partial symtab PST into a symtab, recurring
3783 first on all dependent psymtabs. The argument FILENAME is
3784 only passed so we can see in debug stack traces what file
3787 This function has a split personality, based on whether the
3788 symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
3789 The flow of control and even the memory allocation differs. FIXME. */
3792 psymtab_to_symtab_1 (struct partial_symtab
*pst
, char *filename
)
3794 bfd_size_type external_sym_size
;
3795 bfd_size_type external_pdr_size
;
3796 void (*swap_sym_in
) (bfd
*, void *, SYMR
*);
3797 void (*swap_pdr_in
) (bfd
*, void *, PDR
*);
3799 struct symtab
*st
= NULL
;
3801 struct linetable
*lines
;
3802 CORE_ADDR lowest_pdr_addr
= 0;
3803 int last_symtab_ended
= 0;
3809 /* Read in all partial symbtabs on which this one is dependent.
3810 NOTE that we do have circular dependencies, sigh. We solved
3811 that by setting pst->readin before this point. */
3813 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
3814 if (!pst
->dependencies
[i
]->readin
)
3816 /* Inform about additional files to be read in. */
3819 fputs_filtered (" ", gdb_stdout
);
3821 fputs_filtered ("and ", gdb_stdout
);
3823 printf_filtered ("%s...",
3824 pst
->dependencies
[i
]->filename
);
3825 wrap_here (""); /* Flush output */
3826 gdb_flush (gdb_stdout
);
3828 /* We only pass the filename for debug purposes */
3829 psymtab_to_symtab_1 (pst
->dependencies
[i
],
3830 pst
->dependencies
[i
]->filename
);
3833 /* Do nothing if this is a dummy psymtab. */
3835 if (pst
->n_global_syms
== 0 && pst
->n_static_syms
== 0
3836 && pst
->textlow
== 0 && pst
->texthigh
== 0)
3839 /* Now read the symbols for this symtab */
3841 cur_bfd
= CUR_BFD (pst
);
3842 debug_swap
= DEBUG_SWAP (pst
);
3843 debug_info
= DEBUG_INFO (pst
);
3844 pending_list
= PENDING_LIST (pst
);
3845 external_sym_size
= debug_swap
->external_sym_size
;
3846 external_pdr_size
= debug_swap
->external_pdr_size
;
3847 swap_sym_in
= debug_swap
->swap_sym_in
;
3848 swap_pdr_in
= debug_swap
->swap_pdr_in
;
3849 current_objfile
= pst
->objfile
;
3850 cur_fd
= FDR_IDX (pst
);
3851 fh
= ((cur_fd
== -1)
3853 : debug_info
->fdr
+ cur_fd
);
3856 /* See comment in parse_partial_symbols about the @stabs sentinel. */
3857 processing_gcc_compilation
= 0;
3858 if (fh
!= (FDR
*) NULL
&& fh
->csym
>= 2)
3862 (*swap_sym_in
) (cur_bfd
,
3863 ((char *) debug_info
->external_sym
3864 + (fh
->isymBase
+ 1) * external_sym_size
),
3866 if (strcmp (debug_info
->ss
+ fh
->issBase
+ sh
.iss
,
3869 /* We indicate that this is a GCC compilation so that certain
3870 features will be enabled in stabsread/dbxread. */
3871 processing_gcc_compilation
= 2;
3875 if (processing_gcc_compilation
!= 0)
3878 /* This symbol table contains stabs-in-ecoff entries. */
3880 /* Parse local symbols first */
3882 if (fh
->csym
<= 2) /* FIXME, this blows psymtab->symtab ptr */
3884 current_objfile
= NULL
;
3887 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
3893 (*swap_sym_in
) (cur_bfd
,
3894 (((char *) debug_info
->external_sym
)
3895 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
3897 name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3899 /* XXX This is a hack. It will go away! */
3900 if (ECOFF_IS_STAB (&sh
) || (name
[0] == '#'))
3902 int type_code
= ECOFF_UNMARK_STAB (sh
.index
);
3904 /* We should never get non N_STAB symbols here, but they
3905 should be harmless, so keep process_one_symbol from
3906 complaining about them. */
3907 if (type_code
& N_STAB
)
3909 /* If we found a trailing N_SO with no name, process
3910 it here instead of in process_one_symbol, so we
3911 can keep a handle to its symtab. The symtab
3912 would otherwise be ended twice, once in
3913 process_one_symbol, and once after this loop. */
3914 if (type_code
== N_SO
3916 && previous_stab_code
!= (unsigned char) N_SO
3919 valu
+= ANOFFSET (pst
->section_offsets
,
3920 SECT_OFF_TEXT (pst
->objfile
));
3921 previous_stab_code
= N_SO
;
3922 st
= end_symtab (valu
, pst
->objfile
,
3923 SECT_OFF_TEXT (pst
->objfile
));
3925 last_symtab_ended
= 1;
3929 last_symtab_ended
= 0;
3930 process_one_symbol (type_code
, 0, valu
, name
,
3931 pst
->section_offsets
, pst
->objfile
);
3934 /* Similarly a hack. */
3935 else if (name
[0] == '#')
3937 process_one_symbol (N_SLINE
, 0, valu
, name
,
3938 pst
->section_offsets
, pst
->objfile
);
3940 if (type_code
== N_FUN
)
3942 /* Make up special symbol to contain
3943 procedure specific info */
3944 struct mips_extra_func_info
*e
=
3945 ((struct mips_extra_func_info
*)
3946 obstack_alloc (¤t_objfile
->objfile_obstack
,
3947 sizeof (struct mips_extra_func_info
)));
3948 struct symbol
*s
= new_symbol (MIPS_EFI_SYMBOL_NAME
);
3950 memset (e
, 0, sizeof (struct mips_extra_func_info
));
3951 SYMBOL_DOMAIN (s
) = LABEL_DOMAIN
;
3952 SYMBOL_CLASS (s
) = LOC_CONST
;
3953 SYMBOL_TYPE (s
) = mdebug_type_void
;
3954 SYMBOL_VALUE (s
) = (long) e
;
3955 e
->pdr
.framereg
= -1;
3956 add_symbol_to_list (s
, &local_symbols
);
3959 else if (sh
.st
== stLabel
)
3961 if (sh
.index
== indexNil
)
3963 /* This is what the gcc2_compiled and __gnu_compiled_*
3964 show up as. So don't complain. */
3969 /* Handle encoded stab line number. */
3970 valu
+= ANOFFSET (pst
->section_offsets
, SECT_OFF_TEXT (pst
->objfile
));
3971 record_line (current_subfile
, sh
.index
, valu
);
3974 else if (sh
.st
== stProc
|| sh
.st
== stStaticProc
3975 || sh
.st
== stStatic
|| sh
.st
== stEnd
)
3976 /* These are generated by gcc-2.x, do not complain */
3979 complaint (&symfile_complaints
, "unknown stabs symbol %s", name
);
3982 if (! last_symtab_ended
)
3984 st
= end_symtab (pst
->texthigh
, pst
->objfile
, SECT_OFF_TEXT (pst
->objfile
));
3988 /* There used to be a call to sort_blocks here, but this should not
3989 be necessary for stabs symtabs. And as sort_blocks modifies the
3990 start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
3991 it did the wrong thing if the first procedure in a file was
3992 generated via asm statements. */
3994 /* Fill in procedure info next. */
3998 struct cleanup
*old_chain
;
4004 pr_block
= (PDR
*) xmalloc (fh
->cpd
* sizeof (PDR
));
4005 old_chain
= make_cleanup (xfree
, pr_block
);
4007 pdr_ptr
= ((char *) debug_info
->external_pdr
4008 + fh
->ipdFirst
* external_pdr_size
);
4009 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
4013 pdr_ptr
+= external_pdr_size
, pdr_in
++)
4015 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
4017 /* Determine lowest PDR address, the PDRs are not always
4019 if (pdr_in
== pr_block
)
4020 lowest_pdr_addr
= pdr_in
->adr
;
4021 else if (pdr_in
->adr
< lowest_pdr_addr
)
4022 lowest_pdr_addr
= pdr_in
->adr
;
4026 pdr_in_end
= pdr_in
+ fh
->cpd
;
4027 for (; pdr_in
< pdr_in_end
; pdr_in
++)
4028 parse_procedure (pdr_in
, st
, pst
);
4030 do_cleanups (old_chain
);
4035 /* This symbol table contains ordinary ecoff entries. */
4044 st
= new_symtab ("unknown", 0, pst
->objfile
);
4048 maxlines
= 2 * fh
->cline
;
4049 st
= new_symtab (pst
->filename
, maxlines
, pst
->objfile
);
4051 /* The proper language was already determined when building
4052 the psymtab, use it. */
4053 st
->language
= PST_PRIVATE (pst
)->pst_language
;
4056 psymtab_language
= st
->language
;
4058 lines
= LINETABLE (st
);
4060 /* Get a new lexical context */
4062 push_parse_stack ();
4063 top_stack
->cur_st
= st
;
4064 top_stack
->cur_block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (st
),
4066 BLOCK_START (top_stack
->cur_block
) = pst
->textlow
;
4067 BLOCK_END (top_stack
->cur_block
) = 0;
4068 top_stack
->blocktype
= stFile
;
4069 top_stack
->cur_type
= 0;
4070 top_stack
->procadr
= 0;
4071 top_stack
->numargs
= 0;
4072 found_ecoff_debugging_info
= 0;
4079 /* Parse local symbols first */
4080 sym_ptr
= ((char *) debug_info
->external_sym
4081 + fh
->isymBase
* external_sym_size
);
4082 sym_end
= sym_ptr
+ fh
->csym
* external_sym_size
;
4083 while (sym_ptr
< sym_end
)
4088 (*swap_sym_in
) (cur_bfd
, sym_ptr
, &sh
);
4089 c
= parse_symbol (&sh
,
4090 debug_info
->external_aux
+ fh
->iauxBase
,
4091 sym_ptr
, fh
->fBigendian
, pst
->section_offsets
, pst
->objfile
);
4092 sym_ptr
+= c
* external_sym_size
;
4095 /* Linenumbers. At the end, check if we can save memory.
4096 parse_lines has to look ahead an arbitrary number of PDR
4097 structures, so we swap them all first. */
4101 struct cleanup
*old_chain
;
4107 pr_block
= (PDR
*) xmalloc (fh
->cpd
* sizeof (PDR
));
4109 old_chain
= make_cleanup (xfree
, pr_block
);
4111 pdr_ptr
= ((char *) debug_info
->external_pdr
4112 + fh
->ipdFirst
* external_pdr_size
);
4113 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
4117 pdr_ptr
+= external_pdr_size
, pdr_in
++)
4119 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
4121 /* Determine lowest PDR address, the PDRs are not always
4123 if (pdr_in
== pr_block
)
4124 lowest_pdr_addr
= pdr_in
->adr
;
4125 else if (pdr_in
->adr
< lowest_pdr_addr
)
4126 lowest_pdr_addr
= pdr_in
->adr
;
4129 parse_lines (fh
, pr_block
, lines
, maxlines
, pst
, lowest_pdr_addr
);
4130 if (lines
->nitems
< fh
->cline
)
4131 lines
= shrink_linetable (lines
);
4133 /* Fill in procedure info next. */
4135 pdr_in_end
= pdr_in
+ fh
->cpd
;
4136 for (; pdr_in
< pdr_in_end
; pdr_in
++)
4137 parse_procedure (pdr_in
, 0, pst
);
4139 do_cleanups (old_chain
);
4143 LINETABLE (st
) = lines
;
4145 /* .. and our share of externals.
4146 XXX use the global list to speed up things here. how?
4147 FIXME, Maybe quit once we have found the right number of ext's? */
4148 top_stack
->cur_st
= st
;
4149 top_stack
->cur_block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack
->cur_st
),
4151 top_stack
->blocktype
= stFile
;
4153 ext_ptr
= PST_PRIVATE (pst
)->extern_tab
;
4154 for (i
= PST_PRIVATE (pst
)->extern_count
; --i
>= 0; ext_ptr
++)
4155 parse_external (ext_ptr
, fh
->fBigendian
, pst
->section_offsets
, pst
->objfile
);
4157 /* If there are undefined symbols, tell the user.
4158 The alpha has an undefined symbol for every symbol that is
4159 from a shared library, so tell the user only if verbose is on. */
4160 if (info_verbose
&& n_undef_symbols
)
4162 printf_filtered ("File %s contains %d unresolved references:",
4163 st
->filename
, n_undef_symbols
);
4164 printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
4165 n_undef_vars
, n_undef_procs
, n_undef_labels
);
4166 n_undef_symbols
= n_undef_labels
= n_undef_vars
= n_undef_procs
= 0;
4176 /* Now link the psymtab and the symtab. */
4179 current_objfile
= NULL
;
4182 /* Ancillary parsing procedures. */
4184 /* Return 1 if the symbol pointed to by SH has a cross reference
4185 to an opaque aggregate type, else 0. */
4188 has_opaque_xref (FDR
*fh
, SYMR
*sh
)
4195 if (sh
->index
== indexNil
)
4198 ax
= debug_info
->external_aux
+ fh
->iauxBase
+ sh
->index
;
4199 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
, &ax
->a_ti
, &tir
);
4200 if (tir
.bt
!= btStruct
&& tir
.bt
!= btUnion
&& tir
.bt
!= btEnum
)
4204 (*debug_swap
->swap_rndx_in
) (fh
->fBigendian
, &ax
->a_rndx
, rn
);
4205 if (rn
->rfd
== 0xfff)
4206 rf
= AUX_GET_ISYM (fh
->fBigendian
, ax
+ 1);
4214 /* Lookup the type at relative index RN. Return it in TPP
4215 if found and in any event come up with its name PNAME.
4216 BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
4217 Return value says how many aux symbols we ate. */
4220 cross_ref (int fd
, union aux_ext
*ax
, struct type
**tpp
, enum type_code type_code
, /* Use to alloc new type if none is found. */
4221 char **pname
, int bigend
, char *sym_name
)
4230 struct mdebug_pending
*pend
;
4232 *tpp
= (struct type
*) NULL
;
4234 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
4236 /* Escape index means 'the next one' */
4237 if (rn
->rfd
== 0xfff)
4240 rf
= AUX_GET_ISYM (bigend
, ax
+ 1);
4247 /* mips cc uses a rf of -1 for opaque struct definitions.
4248 Set TYPE_FLAG_STUB for these types so that check_typedef will
4249 resolve them if the struct gets defined in another compilation unit. */
4252 *pname
= "<undefined>";
4253 *tpp
= init_type (type_code
, 0, TYPE_FLAG_STUB
, (char *) NULL
, current_objfile
);
4257 /* mips cc uses an escaped rn->index of 0 for struct return types
4258 of procedures that were compiled without -g. These will always remain
4260 if (rn
->rfd
== 0xfff && rn
->index
== 0)
4262 *pname
= "<undefined>";
4266 /* Find the relative file descriptor and the symbol in it. */
4267 fh
= get_rfd (fd
, rf
);
4268 xref_fd
= fh
- debug_info
->fdr
;
4270 if (rn
->index
>= fh
->csym
)
4272 /* File indirect entry is corrupt. */
4273 *pname
= "<illegal>";
4274 bad_rfd_entry_complaint (sym_name
, xref_fd
, rn
->index
);
4278 /* If we have processed this symbol then we left a forwarding
4279 pointer to the type in the pending list. If not, we`ll put
4280 it in a list of pending types, to be processed later when
4281 the file will be. In any event, we collect the name for the
4284 esh
= ((char *) debug_info
->external_sym
4285 + ((fh
->isymBase
+ rn
->index
)
4286 * debug_swap
->external_sym_size
));
4287 (*debug_swap
->swap_sym_in
) (cur_bfd
, esh
, &sh
);
4289 /* Make sure that this type of cross reference can be handled. */
4290 if ((sh
.sc
!= scInfo
4291 || (sh
.st
!= stBlock
&& sh
.st
!= stTypedef
&& sh
.st
!= stIndirect
4292 && sh
.st
!= stStruct
&& sh
.st
!= stUnion
4293 && sh
.st
!= stEnum
))
4294 && (sh
.st
!= stBlock
|| !SC_IS_COMMON (sh
.sc
)))
4296 /* File indirect entry is corrupt. */
4297 *pname
= "<illegal>";
4298 bad_rfd_entry_complaint (sym_name
, xref_fd
, rn
->index
);
4302 *pname
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
4304 pend
= is_pending_symbol (fh
, esh
);
4309 /* We have not yet seen this type. */
4311 if ((sh
.iss
== 0 && sh
.st
== stTypedef
) || sh
.st
== stIndirect
)
4315 /* alpha cc puts out a stTypedef with a sh.iss of zero for
4317 a) forward declarations of structs/unions/enums which are not
4318 defined in this compilation unit.
4319 For these the type will be void. This is a bad design decision
4320 as cross referencing across compilation units is impossible
4321 due to the missing name.
4322 b) forward declarations of structs/unions/enums/typedefs which
4323 are defined later in this file or in another file in the same
4324 compilation unit. Irix5 cc uses a stIndirect symbol for this.
4325 Simply cross reference those again to get the true type.
4326 The forward references are not entered in the pending list and
4327 in the symbol table. */
4329 (*debug_swap
->swap_tir_in
) (bigend
,
4330 &(debug_info
->external_aux
4331 + fh
->iauxBase
+ sh
.index
)->a_ti
,
4333 if (tir
.tq0
!= tqNil
)
4334 complaint (&symfile_complaints
,
4335 "illegal tq0 in forward typedef for %s", sym_name
);
4339 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
,
4341 *pname
= "<undefined>";
4348 (debug_info
->external_aux
4349 + fh
->iauxBase
+ sh
.index
+ 1),
4350 tpp
, type_code
, pname
,
4351 fh
->fBigendian
, sym_name
);
4355 /* Follow a forward typedef. This might recursively
4356 call cross_ref till we get a non typedef'ed type.
4357 FIXME: This is not correct behaviour, but gdb currently
4358 cannot handle typedefs without type copying. Type
4359 copying is impossible as we might have mutual forward
4360 references between two files and the copied type would not
4361 get filled in when we later parse its definition. */
4362 *tpp
= parse_type (xref_fd
,
4363 debug_info
->external_aux
+ fh
->iauxBase
,
4367 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
4368 add_pending (fh
, esh
, *tpp
);
4372 complaint (&symfile_complaints
,
4373 "illegal bt %d in forward typedef for %s", tir
.bt
,
4375 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
,
4381 else if (sh
.st
== stTypedef
)
4383 /* Parse the type for a normal typedef. This might recursively call
4384 cross_ref till we get a non typedef'ed type.
4385 FIXME: This is not correct behaviour, but gdb currently
4386 cannot handle typedefs without type copying. But type copying is
4387 impossible as we might have mutual forward references between
4388 two files and the copied type would not get filled in when
4389 we later parse its definition. */
4390 *tpp
= parse_type (xref_fd
,
4391 debug_info
->external_aux
+ fh
->iauxBase
,
4395 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
4399 /* Cross reference to a struct/union/enum which is defined
4400 in another file in the same compilation unit but that file
4401 has not been parsed yet.
4402 Initialize the type only, it will be filled in when
4403 it's definition is parsed. */
4404 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
4406 add_pending (fh
, esh
, *tpp
);
4409 /* We used one auxent normally, two if we got a "next one" rf. */
4414 /* Quick&dirty lookup procedure, to avoid the MI ones that require
4415 keeping the symtab sorted */
4417 static struct symbol
*
4418 mylookup_symbol (char *name
, struct block
*block
,
4419 domain_enum domain
, enum address_class
class)
4421 struct dict_iterator iter
;
4426 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
4428 if (DEPRECATED_SYMBOL_NAME (sym
)[0] == inc
4429 && SYMBOL_DOMAIN (sym
) == domain
4430 && SYMBOL_CLASS (sym
) == class
4431 && strcmp (DEPRECATED_SYMBOL_NAME (sym
), name
) == 0)
4435 block
= BLOCK_SUPERBLOCK (block
);
4437 return mylookup_symbol (name
, block
, domain
, class);
4442 /* Add a new symbol S to a block B. */
4445 add_symbol (struct symbol
*s
, struct block
*b
)
4447 dict_add_symbol (BLOCK_DICT (b
), s
);
4450 /* Add a new block B to a symtab S */
4453 add_block (struct block
*b
, struct symtab
*s
)
4455 struct blockvector
*bv
= BLOCKVECTOR (s
);
4457 bv
= (struct blockvector
*) xrealloc ((void *) bv
,
4458 (sizeof (struct blockvector
)
4459 + BLOCKVECTOR_NBLOCKS (bv
)
4460 * sizeof (bv
->block
)));
4461 if (bv
!= BLOCKVECTOR (s
))
4462 BLOCKVECTOR (s
) = bv
;
4464 BLOCKVECTOR_BLOCK (bv
, BLOCKVECTOR_NBLOCKS (bv
)++) = b
;
4467 /* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
4468 MIPS' linenumber encoding might need more than one byte
4469 to describe it, LAST is used to detect these continuation lines.
4471 Combining lines with the same line number seems like a bad idea.
4472 E.g: There could be a line number entry with the same line number after the
4473 prologue and GDB should not ignore it (this is a better way to find
4474 a prologue than mips_skip_prologue).
4475 But due to the compressed line table format there are line number entries
4476 for the same line which are needed to bridge the gap to the next
4477 line number entry. These entries have a bogus address info with them
4478 and we are unable to tell them from intended duplicate line number
4480 This is another reason why -ggdb debugging format is preferable. */
4483 add_line (struct linetable
*lt
, int lineno
, CORE_ADDR adr
, int last
)
4485 /* DEC c89 sometimes produces zero linenos which confuse gdb.
4486 Change them to something sensible. */
4490 last
= -2; /* make sure we record first line */
4492 if (last
== lineno
) /* skip continuation lines */
4495 lt
->item
[lt
->nitems
].line
= lineno
;
4496 lt
->item
[lt
->nitems
++].pc
= adr
<< 2;
4500 /* Sorting and reordering procedures */
4502 /* Blocks with a smaller low bound should come first */
4505 compare_blocks (const void *arg1
, const void *arg2
)
4508 struct block
**b1
= (struct block
**) arg1
;
4509 struct block
**b2
= (struct block
**) arg2
;
4511 addr_diff
= (BLOCK_START ((*b1
))) - (BLOCK_START ((*b2
)));
4513 return (BLOCK_END ((*b2
))) - (BLOCK_END ((*b1
)));
4517 /* Sort the blocks of a symtab S.
4518 Reorder the blocks in the blockvector by code-address,
4519 as required by some MI search routines */
4522 sort_blocks (struct symtab
*s
)
4524 struct blockvector
*bv
= BLOCKVECTOR (s
);
4526 if (BLOCKVECTOR_NBLOCKS (bv
) <= 2)
4529 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) == 0)
4530 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = 0;
4531 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) == 0)
4532 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) = 0;
4536 * This is very unfortunate: normally all functions are compiled in
4537 * the order they are found, but if the file is compiled -O3 things
4538 * are very different. It would be nice to find a reliable test
4539 * to detect -O3 images in advance.
4541 if (BLOCKVECTOR_NBLOCKS (bv
) > 3)
4542 qsort (&BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
),
4543 BLOCKVECTOR_NBLOCKS (bv
) - FIRST_LOCAL_BLOCK
,
4544 sizeof (struct block
*),
4549 int i
, j
= BLOCKVECTOR_NBLOCKS (bv
);
4551 for (i
= FIRST_LOCAL_BLOCK
; i
< j
; i
++)
4552 if (high
< BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
)))
4553 high
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
));
4554 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = high
;
4557 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) =
4558 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
));
4560 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4561 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4562 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4563 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4567 /* Constructor/restructor/destructor procedures */
4569 /* Allocate a new symtab for NAME. Needs an estimate of how many
4570 linenumbers MAXLINES we'll put in it */
4572 static struct symtab
*
4573 new_symtab (char *name
, int maxlines
, struct objfile
*objfile
)
4575 struct symtab
*s
= allocate_symtab (name
, objfile
);
4577 LINETABLE (s
) = new_linetable (maxlines
);
4579 /* All symtabs must have at least two blocks */
4580 BLOCKVECTOR (s
) = new_bvect (2);
4581 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
)
4582 = new_block (NON_FUNCTION_BLOCK
);
4583 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
)
4584 = new_block (NON_FUNCTION_BLOCK
);
4585 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
)) =
4586 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4588 s
->free_code
= free_linetable
;
4589 s
->debugformat
= obsavestring ("ECOFF", 5,
4590 &objfile
->objfile_obstack
);
4594 /* Allocate a new partial_symtab NAME */
4596 static struct partial_symtab
*
4597 new_psymtab (char *name
, struct objfile
*objfile
)
4599 struct partial_symtab
*psymtab
;
4601 psymtab
= allocate_psymtab (name
, objfile
);
4602 psymtab
->section_offsets
= objfile
->section_offsets
;
4604 /* Keep a backpointer to the file's symbols */
4606 psymtab
->read_symtab_private
= ((char *)
4607 obstack_alloc (&objfile
->objfile_obstack
,
4608 sizeof (struct symloc
)));
4609 memset (psymtab
->read_symtab_private
, 0, sizeof (struct symloc
));
4610 CUR_BFD (psymtab
) = cur_bfd
;
4611 DEBUG_SWAP (psymtab
) = debug_swap
;
4612 DEBUG_INFO (psymtab
) = debug_info
;
4613 PENDING_LIST (psymtab
) = pending_list
;
4615 /* The way to turn this into a symtab is to call... */
4616 psymtab
->read_symtab
= mdebug_psymtab_to_symtab
;
4621 /* Allocate a linetable array of the given SIZE. Since the struct
4622 already includes one item, we subtract one when calculating the
4623 proper size to allocate. */
4625 static struct linetable
*
4626 new_linetable (int size
)
4628 struct linetable
*l
;
4630 size
= (size
- 1) * sizeof (l
->item
) + sizeof (struct linetable
);
4631 l
= (struct linetable
*) xmalloc (size
);
4636 /* Oops, too big. Shrink it. This was important with the 2.4 linetables,
4637 I am not so sure about the 3.4 ones.
4639 Since the struct linetable already includes one item, we subtract one when
4640 calculating the proper size to allocate. */
4642 static struct linetable
*
4643 shrink_linetable (struct linetable
*lt
)
4646 return (struct linetable
*) xrealloc ((void *) lt
,
4647 (sizeof (struct linetable
)
4649 * sizeof (lt
->item
))));
4652 /* Allocate and zero a new blockvector of NBLOCKS blocks. */
4654 static struct blockvector
*
4655 new_bvect (int nblocks
)
4657 struct blockvector
*bv
;
4660 size
= sizeof (struct blockvector
) + nblocks
* sizeof (struct block
*);
4661 bv
= (struct blockvector
*) xzalloc (size
);
4663 BLOCKVECTOR_NBLOCKS (bv
) = nblocks
;
4668 /* Allocate and zero a new block, and set its BLOCK_DICT. If function
4669 is non-zero, assume the block is associated to a function, and make
4670 sure that the symbols are stored linearly; otherwise, store them
4673 static struct block
*
4674 new_block (enum block_type type
)
4676 /* FIXME: carlton/2003-09-11: This should use allocate_block to
4677 allocate the block. Which, in turn, suggests that the block
4678 should be allocated on an obstack. */
4679 struct block
*retval
= xzalloc (sizeof (struct block
));
4681 if (type
== FUNCTION_BLOCK
)
4682 BLOCK_DICT (retval
) = dict_create_linear_expandable ();
4684 BLOCK_DICT (retval
) = dict_create_hashed_expandable ();
4689 /* Create a new symbol with printname NAME */
4691 static struct symbol
*
4692 new_symbol (char *name
)
4694 struct symbol
*s
= ((struct symbol
*)
4695 obstack_alloc (¤t_objfile
->objfile_obstack
,
4696 sizeof (struct symbol
)));
4698 memset (s
, 0, sizeof (*s
));
4699 SYMBOL_LANGUAGE (s
) = psymtab_language
;
4700 SYMBOL_SET_NAMES (s
, name
, strlen (name
), current_objfile
);
4704 /* Create a new type with printname NAME */
4706 static struct type
*
4707 new_type (char *name
)
4711 t
= alloc_type (current_objfile
);
4712 TYPE_NAME (t
) = name
;
4713 TYPE_CPLUS_SPECIFIC (t
) = (struct cplus_struct_type
*) &cplus_struct_default
;
4717 /* Read ECOFF debugging information from a BFD section. This is
4718 called from elfread.c. It parses the section into a
4719 ecoff_debug_info struct, and then lets the rest of the file handle
4723 elfmdebug_build_psymtabs (struct objfile
*objfile
,
4724 const struct ecoff_debug_swap
*swap
, asection
*sec
)
4726 bfd
*abfd
= objfile
->obfd
;
4727 struct ecoff_debug_info
*info
;
4728 struct cleanup
*back_to
;
4730 /* FIXME: It's not clear whether we should be getting minimal symbol
4731 information from .mdebug in an ELF file, or whether we will.
4732 Re-initialize the minimal symbol reader in case we do. */
4734 init_minimal_symbol_collection ();
4735 back_to
= make_cleanup_discard_minimal_symbols ();
4737 info
= ((struct ecoff_debug_info
*)
4738 obstack_alloc (&objfile
->objfile_obstack
,
4739 sizeof (struct ecoff_debug_info
)));
4741 if (!(*swap
->read_debug_info
) (abfd
, sec
, info
))
4742 error ("Error reading ECOFF debugging information: %s",
4743 bfd_errmsg (bfd_get_error ()));
4745 mdebug_build_psymtabs (objfile
, swap
, info
);
4747 install_minimal_symbols (objfile
);
4748 do_cleanups (back_to
);
4752 _initialize_mdebugread (void)
4755 init_type (TYPE_CODE_VOID
, 1,
4757 "void", (struct objfile
*) NULL
);
4759 init_type (TYPE_CODE_INT
, 1,
4761 "char", (struct objfile
*) NULL
);
4762 mdebug_type_unsigned_char
=
4763 init_type (TYPE_CODE_INT
, 1,
4765 "unsigned char", (struct objfile
*) NULL
);
4767 init_type (TYPE_CODE_INT
, 2,
4769 "short", (struct objfile
*) NULL
);
4770 mdebug_type_unsigned_short
=
4771 init_type (TYPE_CODE_INT
, 2,
4773 "unsigned short", (struct objfile
*) NULL
);
4774 mdebug_type_int_32
=
4775 init_type (TYPE_CODE_INT
, 4,
4777 "int", (struct objfile
*) NULL
);
4778 mdebug_type_unsigned_int_32
=
4779 init_type (TYPE_CODE_INT
, 4,
4781 "unsigned int", (struct objfile
*) NULL
);
4782 mdebug_type_int_64
=
4783 init_type (TYPE_CODE_INT
, 8,
4785 "int", (struct objfile
*) NULL
);
4786 mdebug_type_unsigned_int_64
=
4787 init_type (TYPE_CODE_INT
, 8,
4789 "unsigned int", (struct objfile
*) NULL
);
4790 mdebug_type_long_32
=
4791 init_type (TYPE_CODE_INT
, 4,
4793 "long", (struct objfile
*) NULL
);
4794 mdebug_type_unsigned_long_32
=
4795 init_type (TYPE_CODE_INT
, 4,
4797 "unsigned long", (struct objfile
*) NULL
);
4798 mdebug_type_long_64
=
4799 init_type (TYPE_CODE_INT
, 8,
4801 "long", (struct objfile
*) NULL
);
4802 mdebug_type_unsigned_long_64
=
4803 init_type (TYPE_CODE_INT
, 8,
4805 "unsigned long", (struct objfile
*) NULL
);
4806 mdebug_type_long_long_64
=
4807 init_type (TYPE_CODE_INT
, 8,
4809 "long long", (struct objfile
*) NULL
);
4810 mdebug_type_unsigned_long_long_64
=
4811 init_type (TYPE_CODE_INT
, 8,
4813 "unsigned long long", (struct objfile
*) NULL
);
4814 mdebug_type_adr_32
=
4815 init_type (TYPE_CODE_PTR
, 4,
4817 "adr_32", (struct objfile
*) NULL
);
4818 TYPE_TARGET_TYPE (mdebug_type_adr_32
) = mdebug_type_void
;
4819 mdebug_type_adr_64
=
4820 init_type (TYPE_CODE_PTR
, 8,
4822 "adr_64", (struct objfile
*) NULL
);
4823 TYPE_TARGET_TYPE (mdebug_type_adr_64
) = mdebug_type_void
;
4825 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
4827 "float", (struct objfile
*) NULL
);
4828 mdebug_type_double
=
4829 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4831 "double", (struct objfile
*) NULL
);
4832 mdebug_type_complex
=
4833 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
4835 "complex", (struct objfile
*) NULL
);
4836 TYPE_TARGET_TYPE (mdebug_type_complex
) = mdebug_type_float
;
4837 mdebug_type_double_complex
=
4838 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4840 "double complex", (struct objfile
*) NULL
);
4841 TYPE_TARGET_TYPE (mdebug_type_double_complex
) = mdebug_type_double
;
4843 /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
4845 mdebug_type_string
=
4846 init_type (TYPE_CODE_STRING
,
4847 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
4849 (struct objfile
*) NULL
);
4851 /* We use TYPE_CODE_INT to print these as integers. Does this do any
4852 good? Would we be better off with TYPE_CODE_ERROR? Should
4853 TYPE_CODE_ERROR print things in hex if it knows the size? */
4854 mdebug_type_fixed_dec
=
4855 init_type (TYPE_CODE_INT
,
4856 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4858 (struct objfile
*) NULL
);
4860 mdebug_type_float_dec
=
4861 init_type (TYPE_CODE_ERROR
,
4862 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4863 0, "floating decimal",
4864 (struct objfile
*) NULL
);
4866 nodebug_func_symbol_type
= init_type (TYPE_CODE_FUNC
, 1, 0,
4867 "<function, no debug info>", NULL
);
4868 TYPE_TARGET_TYPE (nodebug_func_symbol_type
) = mdebug_type_int
;
4869 nodebug_var_symbol_type
=
4870 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ HOST_CHAR_BIT
, 0,
4871 "<variable, no debug info>", NULL
);