1 /* Read a symbol table in ECOFF format (Third-Eye).
2 Copyright 1986, 87, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
3 Free Software Foundation, Inc.
4 Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
5 CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
25 /* This module provides the function mdebug_build_psymtabs. It reads
26 ECOFF debugging information into partial symbol tables. The
27 debugging information is read from two structures. A struct
28 ecoff_debug_swap includes the sizes of each ECOFF structure and
29 swapping routines; these are fixed for a particular target. A
30 struct ecoff_debug_info points to the debugging information for a
31 particular object file.
33 ECOFF symbol tables are mostly written in the byte order of the
34 target machine. However, one section of the table (the auxiliary
35 symbol information) is written in the host byte order. There is a
36 bit in the other symbol info which describes which host byte order
37 was used. ECOFF thereby takes the trophy from Intel `b.out' for
38 the most brain-dead adaptation of a file format to byte order.
40 This module can read all four of the known byte-order combinations,
41 on any type of host. */
51 #include "stabsread.h"
52 #include "complaints.h"
55 /* These are needed if the tm.h file does not contain the necessary
56 mips specific definitions. */
58 #ifndef MIPS_EFI_SYMBOL_NAME
59 #define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
60 extern void ecoff_relocate_efi
PARAMS ((struct symbol
*, CORE_ADDR
));
62 #include "coff/symconst.h"
63 typedef struct mips_extra_func_info
68 *mips_extra_func_info_t
;
75 #include <sys/types.h>
79 #include "gdb_string.h"
81 #include "gdb-stabs.h"
85 #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */
87 #include "libaout.h" /* Private BFD a.out information. */
88 #include "aout/aout64.h"
89 #include "aout/stab_gnu.h" /* STABS information */
91 #include "expression.h"
92 #include "language.h" /* Needed inside partial-stab.h */
94 extern void _initialize_mdebugread
PARAMS ((void));
96 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
97 #ifndef ECOFF_REG_TO_REGNUM
98 #define ECOFF_REG_TO_REGNUM(num) (num)
101 /* Provide a way to test if we have both ECOFF and ELF symbol tables.
102 We use this define in order to know whether we should override a
103 symbol's ECOFF section with its ELF section. This is necessary in
104 case the symbol's ELF section could not be represented in ECOFF. */
105 #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
106 && bfd_get_section_by_name (bfd, ".mdebug") != NULL)
109 /* We put a pointer to this structure in the read_symtab_private field
114 /* Index of the FDR that this psymtab represents. */
116 /* The BFD that the psymtab was created from. */
118 const struct ecoff_debug_swap
*debug_swap
;
119 struct ecoff_debug_info
*debug_info
;
120 struct mdebug_pending
**pending_list
;
121 /* Pointer to external symbols for this file. */
123 /* Size of extern_tab. */
125 enum language pst_language
;
128 #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
129 #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
130 #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
131 #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
132 #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
133 #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)
135 #define SC_IS_TEXT(sc) ((sc) == scText \
136 || (sc) == scRConst \
139 #define SC_IS_DATA(sc) ((sc) == scData \
144 #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
145 #define SC_IS_BSS(sc) ((sc) == scBss || (sc) == scSBss)
146 #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)
149 /* Things we import explicitly from other modules */
151 extern int info_verbose
;
153 /* Various complaints about symbol reading that don't abort the process */
155 static struct complaint bad_file_number_complaint
=
156 {"bad file number %d", 0, 0};
158 static struct complaint index_complaint
=
159 {"bad aux index at symbol %s", 0, 0};
161 static struct complaint aux_index_complaint
=
162 {"bad proc end in aux found from symbol %s", 0, 0};
164 static struct complaint block_index_complaint
=
165 {"bad aux index at block symbol %s", 0, 0};
167 static struct complaint unknown_ext_complaint
=
168 {"unknown external symbol %s", 0, 0};
170 static struct complaint unknown_sym_complaint
=
171 {"unknown local symbol %s", 0, 0};
173 static struct complaint unknown_st_complaint
=
174 {"with type %d", 0, 0};
176 static struct complaint block_overflow_complaint
=
177 {"block containing %s overfilled", 0, 0};
179 static struct complaint basic_type_complaint
=
180 {"cannot map ECOFF basic type 0x%x for %s", 0, 0};
182 static struct complaint unknown_type_qual_complaint
=
183 {"unknown type qualifier 0x%x", 0, 0};
185 static struct complaint array_index_type_complaint
=
186 {"illegal array index type for %s, assuming int", 0, 0};
188 static struct complaint bad_tag_guess_complaint
=
189 {"guessed tag type of %s incorrectly", 0, 0};
191 static struct complaint block_member_complaint
=
192 {"declaration block contains unhandled symbol type %d", 0, 0};
194 static struct complaint stEnd_complaint
=
195 {"stEnd with storage class %d not handled", 0, 0};
197 static struct complaint unknown_mdebug_symtype_complaint
=
198 {"unknown symbol type 0x%x", 0, 0};
200 static struct complaint stab_unknown_complaint
=
201 {"unknown stabs symbol %s", 0, 0};
203 static struct complaint pdr_for_nonsymbol_complaint
=
204 {"PDR for %s, but no symbol", 0, 0};
206 static struct complaint pdr_static_symbol_complaint
=
207 {"can't handle PDR for static proc at 0x%lx", 0, 0};
209 static struct complaint bad_setjmp_pdr_complaint
=
210 {"fixing bad setjmp PDR from libc", 0, 0};
212 static struct complaint bad_fbitfield_complaint
=
213 {"can't handle TIR fBitfield for %s", 0, 0};
215 static struct complaint bad_continued_complaint
=
216 {"illegal TIR continued for %s", 0, 0};
218 static struct complaint bad_rfd_entry_complaint
=
219 {"bad rfd entry for %s: file %d, index %d", 0, 0};
221 static struct complaint unexpected_type_code_complaint
=
222 {"unexpected type code for %s", 0, 0};
224 static struct complaint unable_to_cross_ref_complaint
=
225 {"unable to cross ref btTypedef for %s", 0, 0};
227 static struct complaint bad_indirect_xref_complaint
=
228 {"unable to cross ref btIndirect for %s", 0, 0};
230 static struct complaint illegal_forward_tq0_complaint
=
231 {"illegal tq0 in forward typedef for %s", 0, 0};
233 static struct complaint illegal_forward_bt_complaint
=
234 {"illegal bt %d in forward typedef for %s", 0, 0};
236 static struct complaint bad_linetable_guess_complaint
=
237 {"guessed size of linetable for %s incorrectly", 0, 0};
239 static struct complaint bad_ext_ifd_complaint
=
240 {"bad ifd for external symbol: %d (max %d)", 0, 0};
242 static struct complaint bad_ext_iss_complaint
=
243 {"bad iss for external symbol: %ld (max %ld)", 0, 0};
245 /* Macros and extra defs */
247 /* Puns: hard to find whether -g was used and how */
249 #define MIN_GLEVEL GLEVEL_0
250 #define compare_glevel(a,b) \
251 (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
252 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
254 /* Things that really are local to this module */
256 /* Remember what we deduced to be the source language of this psymtab. */
258 static enum language psymtab_language
= language_unknown
;
264 /* How to parse debugging information for CUR_BFD. */
266 static const struct ecoff_debug_swap
*debug_swap
;
268 /* Pointers to debugging information for CUR_BFD. */
270 static struct ecoff_debug_info
*debug_info
;
272 /* Pointer to current file decriptor record, and its index */
277 /* Index of current symbol */
281 /* Note how much "debuggable" this image is. We would like
282 to see at least one FDR with full symbols */
284 static int max_gdbinfo
;
285 static int max_glevel
;
287 /* When examining .o files, report on undefined symbols */
289 static int n_undef_symbols
, n_undef_labels
, n_undef_vars
, n_undef_procs
;
291 /* Pseudo symbol to use when putting stabs into the symbol table. */
293 static char stabs_symbol
[] = STABS_SYMBOL
;
295 /* Types corresponding to mdebug format bt* basic types. */
297 static struct type
*mdebug_type_void
;
298 static struct type
*mdebug_type_char
;
299 static struct type
*mdebug_type_short
;
300 static struct type
*mdebug_type_int_32
;
301 #define mdebug_type_int mdebug_type_int_32
302 static struct type
*mdebug_type_int_64
;
303 static struct type
*mdebug_type_long_32
;
304 static struct type
*mdebug_type_long_64
;
305 static struct type
*mdebug_type_long_long_64
;
306 static struct type
*mdebug_type_unsigned_char
;
307 static struct type
*mdebug_type_unsigned_short
;
308 static struct type
*mdebug_type_unsigned_int_32
;
309 static struct type
*mdebug_type_unsigned_int_64
;
310 static struct type
*mdebug_type_unsigned_long_32
;
311 static struct type
*mdebug_type_unsigned_long_64
;
312 static struct type
*mdebug_type_unsigned_long_long_64
;
313 static struct type
*mdebug_type_adr_32
;
314 static struct type
*mdebug_type_adr_64
;
315 static struct type
*mdebug_type_float
;
316 static struct type
*mdebug_type_double
;
317 static struct type
*mdebug_type_complex
;
318 static struct type
*mdebug_type_double_complex
;
319 static struct type
*mdebug_type_fixed_dec
;
320 static struct type
*mdebug_type_float_dec
;
321 static struct type
*mdebug_type_string
;
323 /* Types for symbols from files compiled without debugging info. */
325 static struct type
*nodebug_func_symbol_type
;
326 static struct type
*nodebug_var_symbol_type
;
328 /* Nonzero if we have seen ecoff debugging info for a file. */
330 static int found_ecoff_debugging_info
;
332 /* Forward declarations */
335 add_pending
PARAMS ((FDR
*, char *, struct type
*));
337 static struct mdebug_pending
*
338 is_pending_symbol
PARAMS ((FDR
*, char *));
341 pop_parse_stack
PARAMS ((void));
344 push_parse_stack
PARAMS ((void));
347 fdr_name
PARAMS ((FDR
*));
350 mdebug_psymtab_to_symtab
PARAMS ((struct partial_symtab
*));
353 upgrade_type
PARAMS ((int, struct type
**, int, union aux_ext
*, int, char *));
356 parse_partial_symbols
PARAMS ((struct objfile
*,
357 struct section_offsets
*));
360 * get_rfd
PARAMS ((int, int));
363 has_opaque_xref
PARAMS ((FDR
*, SYMR
*));
366 cross_ref
PARAMS ((int, union aux_ext
*, struct type
**, enum type_code
,
367 char **, int, char *));
369 static struct symbol
*
370 new_symbol
PARAMS ((char *));
373 new_type
PARAMS ((char *));
375 static struct block
*
376 new_block
PARAMS ((int));
378 static struct symtab
*
379 new_symtab
PARAMS ((char *, int, int, struct objfile
*));
381 static struct linetable
*
382 new_linetable
PARAMS ((int));
384 static struct blockvector
*
385 new_bvect
PARAMS ((int));
388 parse_symbol
PARAMS ((SYMR
*, union aux_ext
*, char *, int, struct section_offsets
*));
391 parse_type
PARAMS ((int, union aux_ext
*, unsigned int, int *, int, char *));
393 static struct symbol
*
394 mylookup_symbol
PARAMS ((char *, struct block
*, namespace_enum
,
395 enum address_class
));
397 static struct block
*
398 shrink_block
PARAMS ((struct block
*, struct symtab
*));
401 xzalloc
PARAMS ((unsigned int));
404 sort_blocks
PARAMS ((struct symtab
*));
407 compare_blocks
PARAMS ((const void *, const void *));
409 static struct partial_symtab
*
410 new_psymtab
PARAMS ((char *, struct objfile
*, struct section_offsets
*));
413 psymtab_to_symtab_1
PARAMS ((struct partial_symtab
*, char *));
416 add_block
PARAMS ((struct block
*, struct symtab
*));
419 add_symbol
PARAMS ((struct symbol
*, struct block
*));
422 add_line
PARAMS ((struct linetable
*, int, CORE_ADDR
, int));
424 static struct linetable
*
425 shrink_linetable
PARAMS ((struct linetable
*));
428 handle_psymbol_enumerators
PARAMS ((struct objfile
*, FDR
*, int, CORE_ADDR
));
431 mdebug_next_symbol_text
PARAMS ((struct objfile
*));
433 /* Address bounds for the signal trampoline in inferior, if any */
435 CORE_ADDR sigtramp_address
, sigtramp_end
;
437 /* Allocate zeroed memory */
443 PTR p
= xmalloc (size
);
449 /* Exported procedure: Builds a symtab from the PST partial one.
450 Restores the environment in effect when PST was created, delegates
451 most of the work to an ancillary procedure, and sorts
452 and reorders the symtab list at the end */
455 mdebug_psymtab_to_symtab (pst
)
456 struct partial_symtab
*pst
;
464 printf_filtered ("Reading in symbols for %s...", pst
->filename
);
465 gdb_flush (gdb_stdout
);
468 next_symbol_text_func
= mdebug_next_symbol_text
;
470 psymtab_to_symtab_1 (pst
, pst
->filename
);
472 /* Match with global symbols. This only needs to be done once,
473 after all of the symtabs and dependencies have been read in. */
474 scan_file_globals (pst
->objfile
);
477 printf_filtered ("done.\n");
480 /* File-level interface functions */
482 /* Find a file descriptor given its index RF relative to a file CF */
492 fdrs
= debug_info
->fdr
;
494 /* Object files do not have the RFD table, all refs are absolute */
497 (*debug_swap
->swap_rfd_in
) (cur_bfd
,
498 ((char *) debug_info
->external_rfd
500 * debug_swap
->external_rfd_size
)),
505 /* Return a safer print NAME for a file descriptor */
512 return "<stripped file>";
515 return debug_info
->ss
+ f
->issBase
+ f
->rss
;
519 /* Read in and parse the symtab of the file OBJFILE. Symbols from
520 different sections are relocated via the SECTION_OFFSETS. */
523 mdebug_build_psymtabs (objfile
, swap
, info
, section_offsets
)
524 struct objfile
*objfile
;
525 const struct ecoff_debug_swap
*swap
;
526 struct ecoff_debug_info
*info
;
527 struct section_offsets
*section_offsets
;
529 cur_bfd
= objfile
->obfd
;
533 /* Make sure all the FDR information is swapped in. */
534 if (info
->fdr
== (FDR
*) NULL
)
540 info
->fdr
= (FDR
*) obstack_alloc (&objfile
->psymbol_obstack
,
541 (info
->symbolic_header
.ifdMax
543 fdr_src
= info
->external_fdr
;
545 + info
->symbolic_header
.ifdMax
* swap
->external_fdr_size
);
547 for (; fdr_src
< fdr_end
; fdr_src
+= swap
->external_fdr_size
, fdr_ptr
++)
548 (*swap
->swap_fdr_in
) (objfile
->obfd
, fdr_src
, fdr_ptr
);
551 parse_partial_symbols (objfile
, section_offsets
);
554 /* Check to make sure file was compiled with -g. If not, warn the
555 user of this limitation. */
556 if (compare_glevel (max_glevel
, GLEVEL_2
) < 0)
558 if (max_gdbinfo
== 0)
559 printf_unfiltered ("\n%s not compiled with -g, debugging support is limited.\n",
561 printf_unfiltered ("You should compile with -g2 or -g3 for best debugging support.\n");
562 gdb_flush (gdb_stdout
);
567 /* Local utilities */
569 /* Map of FDR indexes to partial symtabs */
573 struct partial_symtab
*pst
; /* the psymtab proper */
574 long n_globals
; /* exported globals (external symbols) */
575 long globals_offset
; /* cumulative */
579 /* Utility stack, used to nest procedures and blocks properly.
580 It is a doubly linked list, to avoid too many alloc/free.
581 Since we might need it quite a few times it is NOT deallocated
584 static struct parse_stack
586 struct parse_stack
*next
, *prev
;
587 struct symtab
*cur_st
; /* Current symtab. */
588 struct block
*cur_block
; /* Block in it. */
590 /* What are we parsing. stFile, or stBlock are for files and
591 blocks. stProc or stStaticProc means we have seen the start of a
592 procedure, but not the start of the block within in. When we see
593 the start of that block, we change it to stNil, without pushing a
594 new block, i.e. stNil means both a procedure and a block. */
598 int maxsyms
; /* Max symbols in this block. */
599 struct type
*cur_type
; /* Type we parse fields for. */
600 int cur_field
; /* Field number in cur_type. */
601 CORE_ADDR procadr
; /* Start addres of this procedure */
602 int numargs
; /* Its argument count */
605 *top_stack
; /* Top stack ptr */
608 /* Enter a new lexical context */
613 struct parse_stack
*new;
615 /* Reuse frames if possible */
616 if (top_stack
&& top_stack
->prev
)
617 new = top_stack
->prev
;
619 new = (struct parse_stack
*) xzalloc (sizeof (struct parse_stack
));
620 /* Initialize new frame with previous content */
623 register struct parse_stack
*prev
= new->prev
;
626 top_stack
->prev
= new;
628 new->next
= top_stack
;
633 /* Exit a lexical context */
641 top_stack
= top_stack
->next
;
645 /* Cross-references might be to things we haven't looked at
646 yet, e.g. type references. To avoid too many type
647 duplications we keep a quick fixup table, an array
648 of lists of references indexed by file descriptor */
650 struct mdebug_pending
652 struct mdebug_pending
*next
; /* link */
653 char *s
; /* the unswapped symbol */
654 struct type
*t
; /* its partial type descriptor */
658 /* The pending information is kept for an entire object file, and used
659 to be in the sym_private field. I took it out when I split
660 mdebugread from mipsread, because this might not be the only type
661 of symbols read from an object file. Instead, we allocate the
662 pending information table when we create the partial symbols, and
663 we store a pointer to the single table in each psymtab. */
665 static struct mdebug_pending
**pending_list
;
667 /* Check whether we already saw symbol SH in file FH */
669 static struct mdebug_pending
*
670 is_pending_symbol (fh
, sh
)
674 int f_idx
= fh
- debug_info
->fdr
;
675 register struct mdebug_pending
*p
;
677 /* Linear search is ok, list is typically no more than 10 deep */
678 for (p
= pending_list
[f_idx
]; p
; p
= p
->next
)
684 /* Add a new symbol SH of type T */
687 add_pending (fh
, sh
, t
)
692 int f_idx
= fh
- debug_info
->fdr
;
693 struct mdebug_pending
*p
= is_pending_symbol (fh
, sh
);
695 /* Make sure we do not make duplicates */
698 p
= ((struct mdebug_pending
*)
699 obstack_alloc (¤t_objfile
->psymbol_obstack
,
700 sizeof (struct mdebug_pending
)));
703 p
->next
= pending_list
[f_idx
];
704 pending_list
[f_idx
] = p
;
709 /* Parsing Routines proper. */
711 /* Parse a single symbol. Mostly just make up a GDB symbol for it.
712 For blocks, procedures and types we open a new lexical context.
713 This is basically just a big switch on the symbol's type. Argument
714 AX is the base pointer of aux symbols for this file (fh->iauxBase).
715 EXT_SH points to the unswapped symbol, which is needed for struct,
716 union, etc., types; it is NULL for an EXTR. BIGEND says whether
717 aux symbols are big-endian or little-endian. Return count of
718 SYMR's handled (normally one). */
721 parse_symbol (sh
, ax
, ext_sh
, bigend
, section_offsets
)
726 struct section_offsets
*section_offsets
;
728 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
729 void (*const swap_sym_in
) PARAMS ((bfd
*, PTR
, SYMR
*)) =
730 debug_swap
->swap_sym_in
;
734 struct mdebug_pending
*pend
;
738 enum address_class
class;
740 long svalue
= sh
->value
;
743 if (ext_sh
== (char *) NULL
)
744 name
= debug_info
->ssext
+ sh
->iss
;
746 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
->iss
;
752 /* Do not relocate relative values.
753 The value of a stEnd symbol is the displacement from the
754 corresponding start symbol value.
755 The value of a stBlock symbol is the displacement from the
756 procedure address. */
757 if (sh
->st
!= stEnd
&& sh
->st
!= stBlock
)
758 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
765 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
769 sh
->value
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
778 case stGlobal
: /* external symbol, goes into global block */
780 b
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack
->cur_st
),
782 s
= new_symbol (name
);
783 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
786 case stStatic
: /* static data, goes into current block. */
788 b
= top_stack
->cur_block
;
789 s
= new_symbol (name
);
790 if (SC_IS_COMMON (sh
->sc
))
792 /* It is a FORTRAN common block. At least for SGI Fortran the
793 address is not in the symbol; we need to fix it later in
794 scan_file_globals. */
795 int bucket
= hashname (SYMBOL_NAME (s
));
796 SYMBOL_VALUE_CHAIN (s
) = global_sym_chain
[bucket
];
797 global_sym_chain
[bucket
] = s
;
800 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
803 case stLocal
: /* local variable, goes into current block */
804 if (sh
->sc
== scRegister
)
806 class = LOC_REGISTER
;
807 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
811 b
= top_stack
->cur_block
;
812 s
= new_symbol (name
);
813 SYMBOL_VALUE (s
) = svalue
;
815 data
: /* Common code for symbols describing data */
816 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
817 SYMBOL_CLASS (s
) = class;
820 /* Type could be missing if file is compiled without debugging info. */
821 if (SC_IS_UNDEF (sh
->sc
)
822 || sh
->sc
== scNil
|| sh
->index
== indexNil
)
823 SYMBOL_TYPE (s
) = nodebug_var_symbol_type
;
825 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
826 /* Value of a data symbol is its memory address */
829 case stParam
: /* arg to procedure, goes into current block */
831 found_ecoff_debugging_info
= 1;
832 top_stack
->numargs
++;
834 /* Special GNU C++ name. */
835 if (is_cplus_marker (name
[0]) && name
[1] == 't' && name
[2] == 0)
836 name
= "this"; /* FIXME, not alloc'd in obstack */
837 s
= new_symbol (name
);
839 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
843 /* Pass by value in register. */
844 SYMBOL_CLASS (s
) = LOC_REGPARM
;
845 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
848 /* Pass by reference on stack. */
849 SYMBOL_CLASS (s
) = LOC_REF_ARG
;
852 /* Pass by reference in register. */
853 SYMBOL_CLASS (s
) = LOC_REGPARM_ADDR
;
854 svalue
= ECOFF_REG_TO_REGNUM (svalue
);
857 /* Pass by value on stack. */
858 SYMBOL_CLASS (s
) = LOC_ARG
;
861 SYMBOL_VALUE (s
) = svalue
;
862 SYMBOL_TYPE (s
) = parse_type (cur_fd
, ax
, sh
->index
, 0, bigend
, name
);
863 add_symbol (s
, top_stack
->cur_block
);
866 case stLabel
: /* label, goes into current block */
867 s
= new_symbol (name
);
868 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
; /* so that it can be used */
869 SYMBOL_CLASS (s
) = LOC_LABEL
; /* but not misused */
870 SYMBOL_VALUE_ADDRESS (s
) = (CORE_ADDR
) sh
->value
;
871 SYMBOL_TYPE (s
) = mdebug_type_int
;
872 add_symbol (s
, top_stack
->cur_block
);
875 case stProc
: /* Procedure, usually goes into global block */
876 case stStaticProc
: /* Static procedure, goes into current block */
877 s
= new_symbol (name
);
878 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
879 SYMBOL_CLASS (s
) = LOC_BLOCK
;
880 /* Type of the return value */
881 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
885 t
= parse_type (cur_fd
, ax
, sh
->index
+ 1, 0, bigend
, name
);
886 if (STREQ (name
, "malloc") && t
->code
== TYPE_CODE_VOID
)
888 /* I don't know why, but, at least under Alpha GNU/Linux,
889 when linking against a malloc without debugging
890 symbols, its read as a function returning void---this
891 is bad because it means we cannot call functions with
892 string arguments interactively; i.e., "call
893 printf("howdy\n")" would fail with the error message
894 "program has no memory available". To avoid this, we
895 patch up the type and make it void*
896 instead. (davidm@azstarnet.com)
898 t
= make_pointer_type (t
, NULL
);
901 b
= top_stack
->cur_block
;
902 if (sh
->st
== stProc
)
904 struct blockvector
*bv
= BLOCKVECTOR (top_stack
->cur_st
);
905 /* The next test should normally be true, but provides a
906 hook for nested functions (which we don't want to make
908 if (b
== BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
))
909 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
910 /* Irix 5 sometimes has duplicate names for the same
911 function. We want to add such names up at the global
912 level, not as a nested function. */
913 else if (sh
->value
== top_stack
->procadr
)
914 b
= BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
);
918 /* Make a type for the procedure itself */
919 SYMBOL_TYPE (s
) = lookup_function_type (t
);
921 /* Create and enter a new lexical context */
922 b
= new_block (top_stack
->maxsyms
);
923 SYMBOL_BLOCK_VALUE (s
) = b
;
924 BLOCK_FUNCTION (b
) = s
;
925 BLOCK_START (b
) = BLOCK_END (b
) = sh
->value
;
926 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
927 add_block (b
, top_stack
->cur_st
);
929 /* Not if we only have partial info */
930 if (SC_IS_UNDEF (sh
->sc
) || sh
->sc
== scNil
)
934 top_stack
->cur_block
= b
;
935 top_stack
->blocktype
= sh
->st
;
936 top_stack
->cur_type
= SYMBOL_TYPE (s
);
937 top_stack
->cur_field
= -1;
938 top_stack
->procadr
= sh
->value
;
939 top_stack
->numargs
= 0;
942 /* Beginning of code for structure, union, and enum definitions.
943 They all share a common set of local variables, defined here. */
945 enum type_code type_code
;
951 case stStruct
: /* Start a block defining a struct type */
952 type_code
= TYPE_CODE_STRUCT
;
953 goto structured_common
;
955 case stUnion
: /* Start a block defining a union type */
956 type_code
= TYPE_CODE_UNION
;
957 goto structured_common
;
959 case stEnum
: /* Start a block defining an enum type */
960 type_code
= TYPE_CODE_ENUM
;
961 goto structured_common
;
963 case stBlock
: /* Either a lexical block, or some type */
964 if (sh
->sc
!= scInfo
&& !SC_IS_COMMON (sh
->sc
))
965 goto case_stBlock_code
; /* Lexical block */
967 type_code
= TYPE_CODE_UNDEF
; /* We have a type. */
969 /* Common code for handling struct, union, enum, and/or as-yet-
970 unknown-type blocks of info about structured data. `type_code'
971 has been set to the proper TYPE_CODE, if we know it. */
973 found_ecoff_debugging_info
= 1;
975 top_stack
->blocktype
= stBlock
;
977 /* First count the number of fields and the highest value. */
980 for (ext_tsym
= ext_sh
+ external_sym_size
;
982 ext_tsym
+= external_sym_size
)
986 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
994 if (nfields
== 0 && type_code
== TYPE_CODE_UNDEF
)
996 /* If the type of the member is Nil (or Void),
997 without qualifiers, assume the tag is an
999 Alpha cc -migrate enums are recognized by a zero
1000 index and a zero symbol value.
1001 DU 4.0 cc enums are recognized by a member type of
1002 btEnum without qualifiers and a zero symbol value. */
1003 if (tsym
.index
== indexNil
1004 || (tsym
.index
== 0 && sh
->value
== 0))
1005 type_code
= TYPE_CODE_ENUM
;
1008 (*debug_swap
->swap_tir_in
) (bigend
,
1009 &ax
[tsym
.index
].a_ti
,
1011 if ((tir
.bt
== btNil
|| tir
.bt
== btVoid
1012 || (tir
.bt
== btEnum
&& sh
->value
== 0))
1013 && tir
.tq0
== tqNil
)
1014 type_code
= TYPE_CODE_ENUM
;
1018 if (tsym
.value
> max_value
)
1019 max_value
= tsym
.value
;
1028 /* This is a no-op; is it trying to tell us something
1029 we should be checking? */
1030 if (tsym
.sc
== scVariant
); /*UNIMPLEMENTED */
1032 if (tsym
.index
!= 0)
1034 /* This is something like a struct within a
1035 struct. Skip over the fields of the inner
1036 struct. The -1 is because the for loop will
1037 increment ext_tsym. */
1038 ext_tsym
= ((char *) debug_info
->external_sym
1039 + ((cur_fdr
->isymBase
+ tsym
.index
- 1)
1040 * external_sym_size
));
1046 /* mips cc puts out a typedef for struct x if it is not yet
1047 defined when it encounters
1048 struct y { struct x *xp; };
1053 /* Irix5 cc puts out a stIndirect for struct x if it is not
1054 yet defined when it encounters
1055 struct y { struct x *xp; };
1060 complain (&block_member_complaint
, tsym
.st
);
1065 /* In an stBlock, there is no way to distinguish structs,
1066 unions, and enums at this point. This is a bug in the
1067 original design (that has been fixed with the recent
1068 addition of the stStruct, stUnion, and stEnum symbol
1069 types.) The way you can tell is if/when you see a variable
1070 or field of that type. In that case the variable's type
1071 (in the AUX table) says if the type is struct, union, or
1072 enum, and points back to the stBlock here. So you can
1073 patch the tag kind up later - but only if there actually is
1074 a variable or field of that type.
1076 So until we know for sure, we will guess at this point.
1078 If the first member has index==indexNil or a void type,
1079 assume we have an enumeration.
1080 Otherwise, if there is more than one member, and all
1081 the members have offset 0, assume we have a union.
1082 Otherwise, assume we have a struct.
1084 The heuristic could guess wrong in the case of of an
1085 enumeration with no members or a union with one (or zero)
1086 members, or when all except the last field of a struct have
1087 width zero. These are uncommon and/or illegal situations,
1088 and in any case guessing wrong probably doesn't matter
1091 But if we later do find out we were wrong, we fixup the tag
1092 kind. Members of an enumeration must be handled
1093 differently from struct/union fields, and that is harder to
1094 patch up, but luckily we shouldn't need to. (If there are
1095 any enumeration members, we can tell for sure it's an enum
1098 if (type_code
== TYPE_CODE_UNDEF
)
1100 if (nfields
> 1 && max_value
== 0)
1101 type_code
= TYPE_CODE_UNION
;
1103 type_code
= TYPE_CODE_STRUCT
;
1106 /* Create a new type or use the pending type. */
1107 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1108 if (pend
== (struct mdebug_pending
*) NULL
)
1110 t
= new_type (NULL
);
1111 add_pending (cur_fdr
, ext_sh
, t
);
1116 /* Do not set the tag name if it is a compiler generated tag name
1117 (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
1118 Alpha cc puts out an sh->iss of zero for those. */
1119 if (sh
->iss
== 0 || name
[0] == '.' || name
[0] == '\0')
1120 TYPE_TAG_NAME (t
) = NULL
;
1122 TYPE_TAG_NAME (t
) = obconcat (¤t_objfile
->symbol_obstack
,
1125 TYPE_CODE (t
) = type_code
;
1126 TYPE_LENGTH (t
) = sh
->value
;
1127 TYPE_NFIELDS (t
) = nfields
;
1128 TYPE_FIELDS (t
) = f
= ((struct field
*)
1130 nfields
* sizeof (struct field
)));
1132 if (type_code
== TYPE_CODE_ENUM
)
1134 int unsigned_enum
= 1;
1136 /* This is a non-empty enum. */
1138 /* DEC c89 has the number of enumerators in the sh.value field,
1139 not the type length, so we have to compensate for that
1140 incompatibility quirk.
1141 This might do the wrong thing for an enum with one or two
1142 enumerators and gcc -gcoff -fshort-enums, but these cases
1143 are hopefully rare enough.
1144 Alpha cc -migrate has a sh.value field of zero, we adjust
1146 if (TYPE_LENGTH (t
) == TYPE_NFIELDS (t
)
1147 || TYPE_LENGTH (t
) == 0)
1148 TYPE_LENGTH (t
) = TARGET_INT_BIT
/ HOST_CHAR_BIT
;
1149 for (ext_tsym
= ext_sh
+ external_sym_size
;
1151 ext_tsym
+= external_sym_size
)
1154 struct symbol
*enum_sym
;
1156 (*swap_sym_in
) (cur_bfd
, ext_tsym
, &tsym
);
1158 if (tsym
.st
!= stMember
)
1161 FIELD_BITPOS (*f
) = tsym
.value
;
1162 FIELD_TYPE (*f
) = t
;
1163 FIELD_NAME (*f
) = debug_info
->ss
+ cur_fdr
->issBase
+ tsym
.iss
;
1164 FIELD_BITSIZE (*f
) = 0;
1166 enum_sym
= ((struct symbol
*)
1167 obstack_alloc (¤t_objfile
->symbol_obstack
,
1168 sizeof (struct symbol
)));
1169 memset ((PTR
) enum_sym
, 0, sizeof (struct symbol
));
1170 SYMBOL_NAME (enum_sym
) =
1171 obsavestring (f
->name
, strlen (f
->name
),
1172 ¤t_objfile
->symbol_obstack
);
1173 SYMBOL_CLASS (enum_sym
) = LOC_CONST
;
1174 SYMBOL_TYPE (enum_sym
) = t
;
1175 SYMBOL_NAMESPACE (enum_sym
) = VAR_NAMESPACE
;
1176 SYMBOL_VALUE (enum_sym
) = tsym
.value
;
1177 if (SYMBOL_VALUE (enum_sym
) < 0)
1179 add_symbol (enum_sym
, top_stack
->cur_block
);
1181 /* Skip the stMembers that we've handled. */
1186 TYPE_FLAGS (t
) |= TYPE_FLAG_UNSIGNED
;
1188 /* make this the current type */
1189 top_stack
->cur_type
= t
;
1190 top_stack
->cur_field
= 0;
1192 /* Do not create a symbol for alpha cc unnamed structs. */
1196 /* gcc puts out an empty struct for an opaque struct definitions,
1197 do not create a symbol for it either. */
1198 if (TYPE_NFIELDS (t
) == 0)
1200 TYPE_FLAGS (t
) |= TYPE_FLAG_STUB
;
1204 s
= new_symbol (name
);
1205 SYMBOL_NAMESPACE (s
) = STRUCT_NAMESPACE
;
1206 SYMBOL_CLASS (s
) = LOC_TYPEDEF
;
1207 SYMBOL_VALUE (s
) = 0;
1208 SYMBOL_TYPE (s
) = t
;
1209 add_symbol (s
, top_stack
->cur_block
);
1212 /* End of local variables shared by struct, union, enum, and
1213 block (as yet unknown struct/union/enum) processing. */
1217 found_ecoff_debugging_info
= 1;
1218 /* beginnning of (code) block. Value of symbol
1219 is the displacement from procedure start */
1220 push_parse_stack ();
1222 /* Do not start a new block if this is the outermost block of a
1223 procedure. This allows the LOC_BLOCK symbol to point to the
1224 block with the local variables, so funcname::var works. */
1225 if (top_stack
->blocktype
== stProc
1226 || top_stack
->blocktype
== stStaticProc
)
1228 top_stack
->blocktype
= stNil
;
1232 top_stack
->blocktype
= stBlock
;
1233 b
= new_block (top_stack
->maxsyms
);
1234 BLOCK_START (b
) = sh
->value
+ top_stack
->procadr
;
1235 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
1236 top_stack
->cur_block
= b
;
1237 add_block (b
, top_stack
->cur_st
);
1240 case stEnd
: /* end (of anything) */
1241 if (sh
->sc
== scInfo
|| SC_IS_COMMON (sh
->sc
))
1243 /* Finished with type */
1244 top_stack
->cur_type
= 0;
1246 else if (sh
->sc
== scText
&&
1247 (top_stack
->blocktype
== stProc
||
1248 top_stack
->blocktype
== stStaticProc
))
1250 /* Finished with procedure */
1251 struct blockvector
*bv
= BLOCKVECTOR (top_stack
->cur_st
);
1252 struct mips_extra_func_info
*e
;
1254 struct type
*ftype
= top_stack
->cur_type
;
1257 BLOCK_END (top_stack
->cur_block
) += sh
->value
; /* size */
1259 /* Make up special symbol to contain procedure specific info */
1260 s
= new_symbol (MIPS_EFI_SYMBOL_NAME
);
1261 SYMBOL_NAMESPACE (s
) = LABEL_NAMESPACE
;
1262 SYMBOL_CLASS (s
) = LOC_CONST
;
1263 SYMBOL_TYPE (s
) = mdebug_type_void
;
1264 e
= ((struct mips_extra_func_info
*)
1265 obstack_alloc (¤t_objfile
->symbol_obstack
,
1266 sizeof (struct mips_extra_func_info
)));
1267 memset ((PTR
) e
, 0, sizeof (struct mips_extra_func_info
));
1268 SYMBOL_VALUE (s
) = (long) e
;
1269 e
->numargs
= top_stack
->numargs
;
1270 e
->pdr
.framereg
= -1;
1271 add_symbol (s
, top_stack
->cur_block
);
1273 /* Reallocate symbols, saving memory */
1274 b
= shrink_block (top_stack
->cur_block
, top_stack
->cur_st
);
1276 /* f77 emits proc-level with address bounds==[0,0],
1277 So look for such child blocks, and patch them. */
1278 for (i
= 0; i
< BLOCKVECTOR_NBLOCKS (bv
); i
++)
1280 struct block
*b_bad
= BLOCKVECTOR_BLOCK (bv
, i
);
1281 if (BLOCK_SUPERBLOCK (b_bad
) == b
1282 && BLOCK_START (b_bad
) == top_stack
->procadr
1283 && BLOCK_END (b_bad
) == top_stack
->procadr
)
1285 BLOCK_START (b_bad
) = BLOCK_START (b
);
1286 BLOCK_END (b_bad
) = BLOCK_END (b
);
1290 if (TYPE_NFIELDS (ftype
) <= 0)
1292 /* No parameter type information is recorded with the function's
1293 type. Set that from the type of the parameter symbols. */
1294 int nparams
= top_stack
->numargs
;
1300 TYPE_NFIELDS (ftype
) = nparams
;
1301 TYPE_FIELDS (ftype
) = (struct field
*)
1302 TYPE_ALLOC (ftype
, nparams
* sizeof (struct field
));
1304 for (i
= iparams
= 0; iparams
< nparams
; i
++)
1306 sym
= BLOCK_SYM (b
, i
);
1307 switch (SYMBOL_CLASS (sym
))
1312 case LOC_REGPARM_ADDR
:
1313 TYPE_FIELD_TYPE (ftype
, iparams
) = SYMBOL_TYPE (sym
);
1323 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stBlock
)
1325 /* End of (code) block. The value of the symbol is the
1326 displacement from the procedure`s start address of the
1327 end of this block. */
1328 BLOCK_END (top_stack
->cur_block
) = sh
->value
+ top_stack
->procadr
;
1329 shrink_block (top_stack
->cur_block
, top_stack
->cur_st
);
1331 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stNil
)
1333 /* End of outermost block. Pop parse stack and ignore. The
1334 following stEnd of stProc will take care of the block. */
1337 else if (sh
->sc
== scText
&& top_stack
->blocktype
== stFile
)
1339 /* End of file. Pop parse stack and ignore. Higher
1340 level code deals with this. */
1344 complain (&stEnd_complaint
, sh
->sc
);
1346 pop_parse_stack (); /* restore previous lexical context */
1349 case stMember
: /* member of struct or union */
1350 f
= &TYPE_FIELDS (top_stack
->cur_type
)[top_stack
->cur_field
++];
1351 FIELD_NAME (*f
) = name
;
1352 FIELD_BITPOS (*f
) = sh
->value
;
1354 FIELD_TYPE (*f
) = parse_type (cur_fd
, ax
, sh
->index
, &bitsize
, bigend
, name
);
1355 FIELD_BITSIZE (*f
) = bitsize
;
1358 case stIndirect
: /* forward declaration on Irix5 */
1359 /* Forward declarations from Irix5 cc are handled by cross_ref,
1363 case stTypedef
: /* type definition */
1364 found_ecoff_debugging_info
= 1;
1366 /* Typedefs for forward declarations and opaque structs from alpha cc
1367 are handled by cross_ref, skip them. */
1371 /* Parse the type or use the pending type. */
1372 pend
= is_pending_symbol (cur_fdr
, ext_sh
);
1373 if (pend
== (struct mdebug_pending
*) NULL
)
1375 t
= parse_type (cur_fd
, ax
, sh
->index
, (int *) NULL
, bigend
, name
);
1376 add_pending (cur_fdr
, ext_sh
, t
);
1381 /* mips cc puts out a typedef with the name of the struct for forward
1382 declarations. These should not go into the symbol table and
1383 TYPE_NAME should not be set for them.
1384 They can't be distinguished from an intentional typedef to
1385 the same name however:
1387 struct x { int ix; int jx; };
1391 struct xx {int ixx; int jxx; };
1392 generates a cross referencing stTypedef for x and xx.
1393 The user visible effect of this is that the type of a pointer
1394 to struct foo sometimes is given as `foo *' instead of `struct foo *'.
1395 The problem is fixed with alpha cc and Irix5 cc. */
1397 /* However if the typedef cross references to an opaque aggregate, it
1398 is safe to omit it from the symbol table. */
1400 if (has_opaque_xref (cur_fdr
, sh
))
1402 s
= new_symbol (name
);
1403 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
1404 SYMBOL_CLASS (s
) = LOC_TYPEDEF
;
1405 SYMBOL_BLOCK_VALUE (s
) = top_stack
->cur_block
;
1406 SYMBOL_TYPE (s
) = t
;
1407 add_symbol (s
, top_stack
->cur_block
);
1409 /* Incomplete definitions of structs should not get a name. */
1410 if (TYPE_NAME (SYMBOL_TYPE (s
)) == NULL
1411 && (TYPE_NFIELDS (SYMBOL_TYPE (s
)) != 0
1412 || (TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_STRUCT
1413 && TYPE_CODE (SYMBOL_TYPE (s
)) != TYPE_CODE_UNION
)))
1415 if (TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_PTR
1416 || TYPE_CODE (SYMBOL_TYPE (s
)) == TYPE_CODE_FUNC
)
1418 /* If we are giving a name to a type such as "pointer to
1419 foo" or "function returning foo", we better not set
1420 the TYPE_NAME. If the program contains "typedef char
1421 *caddr_t;", we don't want all variables of type char
1422 * to print as caddr_t. This is not just a
1423 consequence of GDB's type management; CC and GCC (at
1424 least through version 2.4) both output variables of
1425 either type char * or caddr_t with the type
1426 refering to the stTypedef symbol for caddr_t. If a future
1427 compiler cleans this up it GDB is not ready for it
1428 yet, but if it becomes ready we somehow need to
1429 disable this check (without breaking the PCC/GCC2.4
1434 Fortunately, this check seems not to be necessary
1435 for anything except pointers or functions. */
1438 TYPE_NAME (SYMBOL_TYPE (s
)) = SYMBOL_NAME (s
);
1442 case stFile
: /* file name */
1443 push_parse_stack ();
1444 top_stack
->blocktype
= sh
->st
;
1447 /* I`ve never seen these for C */
1449 break; /* register relocation */
1451 break; /* forwarding address */
1453 break; /* constant */
1455 complain (&unknown_mdebug_symtype_complaint
, sh
->st
);
1462 /* Parse the type information provided in the raw AX entries for
1463 the symbol SH. Return the bitfield size in BS, in case.
1464 We must byte-swap the AX entries before we use them; BIGEND says whether
1465 they are big-endian or little-endian (from fh->fBigendian). */
1467 static struct type
*
1468 parse_type (fd
, ax
, aux_index
, bs
, bigend
, sym_name
)
1471 unsigned int aux_index
;
1476 /* Null entries in this map are treated specially */
1477 static struct type
**map_bt
[] =
1479 &mdebug_type_void
, /* btNil */
1480 &mdebug_type_adr_32
, /* btAdr */
1481 &mdebug_type_char
, /* btChar */
1482 &mdebug_type_unsigned_char
, /* btUChar */
1483 &mdebug_type_short
, /* btShort */
1484 &mdebug_type_unsigned_short
, /* btUShort */
1485 &mdebug_type_int_32
, /* btInt */
1486 &mdebug_type_unsigned_int_32
, /* btUInt */
1487 &mdebug_type_long_32
, /* btLong */
1488 &mdebug_type_unsigned_long_32
, /* btULong */
1489 &mdebug_type_float
, /* btFloat */
1490 &mdebug_type_double
, /* btDouble */
1497 &mdebug_type_complex
, /* btComplex */
1498 &mdebug_type_double_complex
, /* btDComplex */
1500 &mdebug_type_fixed_dec
, /* btFixedDec */
1501 &mdebug_type_float_dec
, /* btFloatDec */
1502 &mdebug_type_string
, /* btString */
1505 &mdebug_type_void
, /* btVoid */
1506 0, /* DEC C++: Pointer to member */
1507 0, /* DEC C++: Virtual function table */
1508 0, /* DEC C++: Class (Record) */
1509 &mdebug_type_long_64
, /* btLong64 */
1510 &mdebug_type_unsigned_long_64
, /* btULong64 */
1511 &mdebug_type_long_long_64
, /* btLongLong64 */
1512 &mdebug_type_unsigned_long_long_64
, /* btULongLong64 */
1513 &mdebug_type_adr_64
, /* btAdr64 */
1514 &mdebug_type_int_64
, /* btInt64 */
1515 &mdebug_type_unsigned_int_64
, /* btUInt64 */
1519 struct type
*tp
= 0;
1520 enum type_code type_code
= TYPE_CODE_UNDEF
;
1522 /* Handle undefined types, they have indexNil. */
1523 if (aux_index
== indexNil
)
1524 return mdebug_type_int
;
1526 /* Handle corrupt aux indices. */
1527 if (aux_index
>= (debug_info
->fdr
+ fd
)->caux
)
1529 complain (&index_complaint
, sym_name
);
1530 return mdebug_type_int
;
1534 /* Use aux as a type information record, map its basic type. */
1535 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1536 if (t
->bt
>= (sizeof (map_bt
) / sizeof (*map_bt
)))
1538 complain (&basic_type_complaint
, t
->bt
, sym_name
);
1539 return mdebug_type_int
;
1543 tp
= *map_bt
[t
->bt
];
1548 /* Cannot use builtin types -- build our own */
1552 type_code
= TYPE_CODE_STRUCT
;
1555 type_code
= TYPE_CODE_UNION
;
1558 type_code
= TYPE_CODE_ENUM
;
1561 type_code
= TYPE_CODE_RANGE
;
1564 type_code
= TYPE_CODE_SET
;
1567 /* alpha cc -migrate uses this for typedefs. The true type will
1568 be obtained by crossreferencing below. */
1569 type_code
= TYPE_CODE_ERROR
;
1572 /* alpha cc uses this for typedefs. The true type will be
1573 obtained by crossreferencing below. */
1574 type_code
= TYPE_CODE_ERROR
;
1577 complain (&basic_type_complaint
, t
->bt
, sym_name
);
1578 return mdebug_type_int
;
1582 /* Move on to next aux */
1587 int width
= AUX_GET_WIDTH (bigend
, ax
);
1589 /* Inhibit core dumps with some cfront generated objects that
1591 if (bs
== (int *) NULL
)
1593 /* Alpha cc -migrate encodes char and unsigned char types
1594 as short and unsigned short types with a field width of 8.
1595 Enum types also have a field width which we ignore for now. */
1596 if (t
->bt
== btShort
&& width
== 8)
1597 tp
= mdebug_type_char
;
1598 else if (t
->bt
== btUShort
&& width
== 8)
1599 tp
= mdebug_type_unsigned_char
;
1600 else if (t
->bt
== btEnum
)
1603 complain (&bad_fbitfield_complaint
, sym_name
);
1610 /* A btIndirect entry cross references to an aux entry containing
1612 if (t
->bt
== btIndirect
)
1619 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
1621 if (rn
->rfd
== 0xfff)
1623 rf
= AUX_GET_ISYM (bigend
, ax
);
1631 complain (&bad_indirect_xref_complaint
, sym_name
);
1632 return mdebug_type_int
;
1634 xref_fh
= get_rfd (fd
, rf
);
1635 xref_fd
= xref_fh
- debug_info
->fdr
;
1636 tp
= parse_type (xref_fd
, debug_info
->external_aux
+ xref_fh
->iauxBase
,
1637 rn
->index
, (int *) NULL
, xref_fh
->fBigendian
, sym_name
);
1640 /* All these types really point to some (common) MIPS type
1641 definition, and only the type-qualifiers fully identify
1642 them. We'll make the same effort at sharing. */
1643 if (t
->bt
== btStruct
||
1647 /* btSet (I think) implies that the name is a tag name, not a typedef
1648 name. This apparently is a MIPS extension for C sets. */
1653 /* Try to cross reference this type, build new type on failure. */
1654 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1655 if (tp
== (struct type
*) NULL
)
1656 tp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
1658 /* DEC c89 produces cross references to qualified aggregate types,
1659 dereference them. */
1660 while (TYPE_CODE (tp
) == TYPE_CODE_PTR
1661 || TYPE_CODE (tp
) == TYPE_CODE_ARRAY
)
1662 tp
= tp
->target_type
;
1664 /* Make sure that TYPE_CODE(tp) has an expected type code.
1665 Any type may be returned from cross_ref if file indirect entries
1667 if (TYPE_CODE (tp
) != TYPE_CODE_STRUCT
1668 && TYPE_CODE (tp
) != TYPE_CODE_UNION
1669 && TYPE_CODE (tp
) != TYPE_CODE_ENUM
)
1671 complain (&unexpected_type_code_complaint
, sym_name
);
1676 /* Usually, TYPE_CODE(tp) is already type_code. The main
1677 exception is if we guessed wrong re struct/union/enum.
1678 But for struct vs. union a wrong guess is harmless, so
1679 don't complain(). */
1680 if ((TYPE_CODE (tp
) == TYPE_CODE_ENUM
1681 && type_code
!= TYPE_CODE_ENUM
)
1682 || (TYPE_CODE (tp
) != TYPE_CODE_ENUM
1683 && type_code
== TYPE_CODE_ENUM
))
1685 complain (&bad_tag_guess_complaint
, sym_name
);
1688 if (TYPE_CODE (tp
) != type_code
)
1690 TYPE_CODE (tp
) = type_code
;
1693 /* Do not set the tag name if it is a compiler generated tag name
1694 (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */
1695 if (name
[0] == '.' || name
[0] == '\0')
1696 TYPE_TAG_NAME (tp
) = NULL
;
1697 else if (TYPE_TAG_NAME (tp
) == NULL
1698 || !STREQ (TYPE_TAG_NAME (tp
), name
))
1699 TYPE_TAG_NAME (tp
) = obsavestring (name
, strlen (name
),
1700 ¤t_objfile
->type_obstack
);
1704 /* All these types really point to some (common) MIPS type
1705 definition, and only the type-qualifiers fully identify
1706 them. We'll make the same effort at sharing.
1707 FIXME: We are not doing any guessing on range types. */
1708 if (t
->bt
== btRange
)
1712 /* Try to cross reference this type, build new type on failure. */
1713 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1714 if (tp
== (struct type
*) NULL
)
1715 tp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
1717 /* Make sure that TYPE_CODE(tp) has an expected type code.
1718 Any type may be returned from cross_ref if file indirect entries
1720 if (TYPE_CODE (tp
) != TYPE_CODE_RANGE
)
1722 complain (&unexpected_type_code_complaint
, sym_name
);
1726 /* Usually, TYPE_CODE(tp) is already type_code. The main
1727 exception is if we guessed wrong re struct/union/enum. */
1728 if (TYPE_CODE (tp
) != type_code
)
1730 complain (&bad_tag_guess_complaint
, sym_name
);
1731 TYPE_CODE (tp
) = type_code
;
1733 if (TYPE_NAME (tp
) == NULL
|| !STREQ (TYPE_NAME (tp
), name
))
1734 TYPE_NAME (tp
) = obsavestring (name
, strlen (name
),
1735 ¤t_objfile
->type_obstack
);
1738 if (t
->bt
== btTypedef
)
1742 /* Try to cross reference this type, it should succeed. */
1743 ax
+= cross_ref (fd
, ax
, &tp
, type_code
, &name
, bigend
, sym_name
);
1744 if (tp
== (struct type
*) NULL
)
1746 complain (&unable_to_cross_ref_complaint
, sym_name
);
1747 tp
= mdebug_type_int
;
1751 /* Deal with range types */
1752 if (t
->bt
== btRange
)
1754 TYPE_NFIELDS (tp
) = 2;
1755 TYPE_FIELDS (tp
) = ((struct field
*)
1756 TYPE_ALLOC (tp
, 2 * sizeof (struct field
)));
1757 TYPE_FIELD_NAME (tp
, 0) = obsavestring ("Low", strlen ("Low"),
1758 ¤t_objfile
->type_obstack
);
1759 TYPE_FIELD_BITPOS (tp
, 0) = AUX_GET_DNLOW (bigend
, ax
);
1761 TYPE_FIELD_NAME (tp
, 1) = obsavestring ("High", strlen ("High"),
1762 ¤t_objfile
->type_obstack
);
1763 TYPE_FIELD_BITPOS (tp
, 1) = AUX_GET_DNHIGH (bigend
, ax
);
1767 /* Parse all the type qualifiers now. If there are more
1768 than 6 the game will continue in the next aux */
1772 #define PARSE_TQ(tq) \
1773 if (t->tq != tqNil) \
1774 ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
1786 /* mips cc 2.x and gcc never put out continued aux entries. */
1790 (*debug_swap
->swap_tir_in
) (bigend
, &ax
->a_ti
, t
);
1794 /* Complain for illegal continuations due to corrupt aux entries. */
1796 complain (&bad_continued_complaint
, sym_name
);
1801 /* Make up a complex type from a basic one. Type is passed by
1802 reference in TPP and side-effected as necessary. The type
1803 qualifier TQ says how to handle the aux symbols at AX for
1804 the symbol SX we are currently analyzing. BIGEND says whether
1805 aux symbols are big-endian or little-endian.
1806 Returns the number of aux symbols we parsed. */
1809 upgrade_type (fd
, tpp
, tq
, ax
, bigend
, sym_name
)
1820 /* Used in array processing */
1831 t
= lookup_pointer_type (*tpp
);
1836 t
= lookup_function_type (*tpp
);
1843 /* Determine and record the domain type (type of index) */
1844 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, &rndx
);
1850 rf
= AUX_GET_ISYM (bigend
, ax
);
1853 fh
= get_rfd (fd
, rf
);
1855 indx
= parse_type (fh
- debug_info
->fdr
,
1856 debug_info
->external_aux
+ fh
->iauxBase
,
1857 id
, (int *) NULL
, bigend
, sym_name
);
1859 /* The bounds type should be an integer type, but might be anything
1860 else due to corrupt aux entries. */
1861 if (TYPE_CODE (indx
) != TYPE_CODE_INT
)
1863 complain (&array_index_type_complaint
, sym_name
);
1864 indx
= mdebug_type_int
;
1867 /* Get the bounds, and create the array type. */
1869 lower
= AUX_GET_DNLOW (bigend
, ax
);
1871 upper
= AUX_GET_DNHIGH (bigend
, ax
);
1873 rf
= AUX_GET_WIDTH (bigend
, ax
); /* bit size of array element */
1875 range
= create_range_type ((struct type
*) NULL
, indx
,
1878 t
= create_array_type ((struct type
*) NULL
, *tpp
, range
);
1880 /* We used to fill in the supplied array element bitsize
1881 here if the TYPE_LENGTH of the target type was zero.
1882 This happens for a `pointer to an array of anonymous structs',
1883 but in this case the array element bitsize is also zero,
1884 so nothing is gained.
1885 And we used to check the TYPE_LENGTH of the target type against
1886 the supplied array element bitsize.
1887 gcc causes a mismatch for `pointer to array of object',
1888 since the sdb directives it uses do not have a way of
1889 specifying the bitsize, but it does no harm (the
1890 TYPE_LENGTH should be correct) and we should be able to
1891 ignore the erroneous bitsize from the auxiliary entry safely.
1892 dbx seems to ignore it too. */
1894 /* TYPE_FLAG_TARGET_STUB now takes care of the zero TYPE_LENGTH
1896 if (TYPE_LENGTH (*tpp
) == 0)
1898 TYPE_FLAGS (t
) |= TYPE_FLAG_TARGET_STUB
;
1905 /* Volatile -- currently ignored */
1909 /* Const -- currently ignored */
1913 complain (&unknown_type_qual_complaint
, tq
);
1919 /* Parse a procedure descriptor record PR. Note that the procedure is
1920 parsed _after_ the local symbols, now we just insert the extra
1921 information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
1922 already been placed in the procedure's main block. Note also that
1923 images that have been partially stripped (ld -x) have been deprived
1924 of local symbols, and we have to cope with them here. FIRST_OFF is
1925 the offset of the first procedure for this FDR; we adjust the
1926 address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab
1927 to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
1928 in question, or NULL to use top_stack->cur_block. */
1930 static void parse_procedure
PARAMS ((PDR
*, struct symtab
*,
1931 struct partial_symtab
*));
1934 parse_procedure (pr
, search_symtab
, pst
)
1936 struct symtab
*search_symtab
;
1937 struct partial_symtab
*pst
;
1939 struct symbol
*s
, *i
;
1941 struct mips_extra_func_info
*e
;
1944 /* Simple rule to find files linked "-x" */
1945 if (cur_fdr
->rss
== -1)
1949 /* Static procedure at address pr->adr. Sigh. */
1950 /* FIXME-32x64. assuming pr->adr fits in long. */
1951 complain (&pdr_static_symbol_complaint
, (unsigned long) pr
->adr
);
1959 (*debug_swap
->swap_ext_in
) (cur_bfd
,
1960 ((char *) debug_info
->external_ext
1962 * debug_swap
->external_ext_size
)),
1964 sh_name
= debug_info
->ssext
+ she
.asym
.iss
;
1972 (*debug_swap
->swap_sym_in
) (cur_bfd
,
1973 ((char *) debug_info
->external_sym
1974 + ((cur_fdr
->isymBase
+ pr
->isym
)
1975 * debug_swap
->external_sym_size
)),
1977 sh_name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
1980 if (search_symtab
!= NULL
)
1983 /* This loses both in the case mentioned (want a static, find a global),
1984 but also if we are looking up a non-mangled name which happens to
1985 match the name of a mangled function. */
1986 /* We have to save the cur_fdr across the call to lookup_symbol.
1987 If the pdr is for a static function and if a global function with
1988 the same name exists, lookup_symbol will eventually read in the symtab
1989 for the global function and clobber cur_fdr. */
1990 FDR
*save_cur_fdr
= cur_fdr
;
1991 s
= lookup_symbol (sh_name
, NULL
, VAR_NAMESPACE
, 0, NULL
);
1992 cur_fdr
= save_cur_fdr
;
1996 BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab
), STATIC_BLOCK
),
2002 s
= mylookup_symbol (sh_name
, top_stack
->cur_block
,
2003 VAR_NAMESPACE
, LOC_BLOCK
);
2007 b
= SYMBOL_BLOCK_VALUE (s
);
2011 complain (&pdr_for_nonsymbol_complaint
, sh_name
);
2015 /* FIXME -- delete. We can't do symbol allocation now; it's all done. */
2016 s
= new_symbol (sh_name
);
2017 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
2018 SYMBOL_CLASS (s
) = LOC_BLOCK
;
2019 /* Donno its type, hope int is ok */
2020 SYMBOL_TYPE (s
) = lookup_function_type (mdebug_type_int
);
2021 add_symbol (s
, top_stack
->cur_block
);
2022 /* Wont have symbols for this one */
2024 SYMBOL_BLOCK_VALUE (s
) = b
;
2025 BLOCK_FUNCTION (b
) = s
;
2026 BLOCK_START (b
) = pr
->adr
;
2027 /* BOUND used to be the end of procedure's text, but the
2028 argument is no longer passed in. */
2029 BLOCK_END (b
) = bound
;
2030 BLOCK_SUPERBLOCK (b
) = top_stack
->cur_block
;
2031 add_block (b
, top_stack
->cur_st
);
2035 i
= mylookup_symbol (MIPS_EFI_SYMBOL_NAME
, b
, LABEL_NAMESPACE
, LOC_CONST
);
2039 e
= (struct mips_extra_func_info
*) SYMBOL_VALUE (i
);
2041 e
->pdr
.isym
= (long) s
;
2043 /* GDB expects the absolute function start address for the
2044 procedure descriptor in e->pdr.adr.
2045 As the address in the procedure descriptor is usually relative,
2046 we would have to relocate e->pdr.adr with cur_fdr->adr and
2047 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT).
2048 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
2049 in shared libraries on some systems, and on other systems
2050 e->pdr.adr is sometimes offset by a bogus value.
2051 To work around these problems, we replace e->pdr.adr with
2052 the start address of the function. */
2053 e
->pdr
.adr
= BLOCK_START (b
);
2055 /* Correct incorrect setjmp procedure descriptor from the library
2056 to make backtrace through setjmp work. */
2057 if (e
->pdr
.pcreg
== 0 && STREQ (sh_name
, "setjmp"))
2059 complain (&bad_setjmp_pdr_complaint
, 0);
2060 e
->pdr
.pcreg
= RA_REGNUM
;
2061 e
->pdr
.regmask
= 0x80000000;
2062 e
->pdr
.regoffset
= -4;
2066 /* It would be reasonable that functions that have been compiled
2067 without debugging info have a btNil type for their return value,
2068 and functions that are void and are compiled with debugging info
2070 gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
2071 to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
2073 The glevel field in cur_fdr could be used to determine the presence
2074 of debugging info, but GCC doesn't always pass the -g switch settings
2075 to the assembler and GAS doesn't set the glevel field from the -g switch
2077 To work around these problems, the return value type of a TYPE_CODE_VOID
2078 function is adjusted accordingly if no debugging info was found in the
2079 compilation unit. */
2081 if (processing_gcc_compilation
== 0
2082 && found_ecoff_debugging_info
== 0
2083 && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s
))) == TYPE_CODE_VOID
)
2084 SYMBOL_TYPE (s
) = nodebug_func_symbol_type
;
2087 /* Relocate the extra function info pointed to by the symbol table. */
2090 ecoff_relocate_efi (sym
, delta
)
2094 struct mips_extra_func_info
*e
;
2096 e
= (struct mips_extra_func_info
*) SYMBOL_VALUE (sym
);
2098 e
->pdr
.adr
+= delta
;
2101 /* Parse the external symbol ES. Just call parse_symbol() after
2102 making sure we know where the aux are for it.
2103 BIGEND says whether aux entries are big-endian or little-endian.
2105 This routine clobbers top_stack->cur_block and ->cur_st. */
2107 static void parse_external
PARAMS ((EXTR
*, int, struct section_offsets
*));
2110 parse_external (es
, bigend
, section_offsets
)
2113 struct section_offsets
*section_offsets
;
2117 if (es
->ifd
!= ifdNil
)
2120 cur_fdr
= debug_info
->fdr
+ cur_fd
;
2121 ax
= debug_info
->external_aux
+ cur_fdr
->iauxBase
;
2125 cur_fdr
= debug_info
->fdr
;
2129 /* Reading .o files */
2130 if (SC_IS_UNDEF (es
->asym
.sc
) || es
->asym
.sc
== scNil
)
2133 switch (es
->asym
.st
)
2136 /* These are generated for static symbols in .o files,
2157 /* FIXME: Turn this into a complaint? */
2159 printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
2160 what
, debug_info
->ssext
+ es
->asym
.iss
,
2161 fdr_name (cur_fdr
));
2165 switch (es
->asym
.st
)
2169 /* There is no need to parse the external procedure symbols.
2170 If they are from objects compiled without -g, their index will
2171 be indexNil, and the symbol definition from the minimal symbol
2172 is preferrable (yielding a function returning int instead of int).
2173 If the index points to a local procedure symbol, the local
2174 symbol already provides the correct type.
2175 Note that the index of the external procedure symbol points
2176 to the local procedure symbol in the local symbol table, and
2177 _not_ to the auxiliary symbol info. */
2181 /* Global common symbols are resolved by the runtime loader,
2183 if (SC_IS_COMMON (es
->asym
.sc
))
2186 /* Note that the case of a symbol with indexNil must be handled
2187 anyways by parse_symbol(). */
2188 parse_symbol (&es
->asym
, ax
, (char *) NULL
, bigend
, section_offsets
);
2195 /* Parse the line number info for file descriptor FH into
2196 GDB's linetable LT. MIPS' encoding requires a little bit
2197 of magic to get things out. Note also that MIPS' line
2198 numbers can go back and forth, apparently we can live
2199 with that and do not need to reorder our linetables */
2201 static void parse_lines
PARAMS ((FDR
*, PDR
*, struct linetable
*, int,
2202 struct partial_symtab
*, CORE_ADDR
));
2205 parse_lines (fh
, pr
, lt
, maxlines
, pst
, lowest_pdr_addr
)
2208 struct linetable
*lt
;
2210 struct partial_symtab
*pst
;
2211 CORE_ADDR lowest_pdr_addr
;
2213 unsigned char *base
;
2215 int delta
, count
, lineno
= 0;
2217 if (fh
->cbLine
== 0)
2220 /* Scan by procedure descriptors */
2222 for (j
= 0; j
< fh
->cpd
; j
++, pr
++)
2226 unsigned char *halt
;
2228 /* No code for this one */
2229 if (pr
->iline
== ilineNil
||
2230 pr
->lnLow
== -1 || pr
->lnHigh
== -1)
2233 /* Determine start and end address of compressed line bytes for
2235 base
= debug_info
->line
+ fh
->cbLineOffset
;
2236 if (j
!= (fh
->cpd
- 1))
2237 halt
= base
+ pr
[1].cbLineOffset
;
2239 halt
= base
+ fh
->cbLine
;
2240 base
+= pr
->cbLineOffset
;
2242 adr
= pst
->textlow
+ pr
->adr
- lowest_pdr_addr
;
2244 l
= adr
>> 2; /* in words */
2245 for (lineno
= pr
->lnLow
; base
< halt
;)
2247 count
= *base
& 0x0f;
2248 delta
= *base
++ >> 4;
2253 delta
= (base
[0] << 8) | base
[1];
2254 if (delta
>= 0x8000)
2258 lineno
+= delta
; /* first delta is 0 */
2260 /* Complain if the line table overflows. Could happen
2261 with corrupt binaries. */
2262 if (lt
->nitems
>= maxlines
)
2264 complain (&bad_linetable_guess_complaint
, fdr_name (fh
));
2267 k
= add_line (lt
, lineno
, l
, k
);
2273 /* Master parsing procedure for first-pass reading of file symbols
2274 into a partial_symtab. */
2277 parse_partial_symbols (objfile
, section_offsets
)
2278 struct objfile
*objfile
;
2279 struct section_offsets
*section_offsets
;
2281 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
2282 const bfd_size_type external_rfd_size
= debug_swap
->external_rfd_size
;
2283 const bfd_size_type external_ext_size
= debug_swap
->external_ext_size
;
2284 void (*const swap_ext_in
) PARAMS ((bfd
*, PTR
, EXTR
*))
2285 = debug_swap
->swap_ext_in
;
2286 void (*const swap_sym_in
) PARAMS ((bfd
*, PTR
, SYMR
*))
2287 = debug_swap
->swap_sym_in
;
2288 void (*const swap_rfd_in
) PARAMS ((bfd
*, PTR
, RFDT
*))
2289 = debug_swap
->swap_rfd_in
;
2291 HDRR
*hdr
= &debug_info
->symbolic_header
;
2292 /* Running pointers */
2297 register EXTR
*ext_in
;
2300 struct partial_symtab
*pst
;
2301 int textlow_not_set
= 1;
2302 int past_first_source_file
= 0;
2304 /* List of current psymtab's include files */
2305 char **psymtab_include_list
;
2306 int includes_allocated
;
2309 struct pst_map
*fdr_to_pst
;
2310 /* Index within current psymtab dependency list */
2311 struct partial_symtab
**dependency_list
;
2312 int dependencies_used
, dependencies_allocated
;
2313 struct cleanup
*old_chain
;
2315 enum language prev_language
;
2316 asection
*text_sect
;
2317 int relocatable
= 0;
2319 /* Irix 5.2 shared libraries have a fh->adr field of zero, but
2320 the shared libraries are prelinked at a high memory address.
2321 We have to adjust the start address of the object file for this case,
2322 by setting it to the start address of the first procedure in the file.
2323 But we should do no adjustments if we are debugging a .o file, where
2324 the text section (and fh->adr) really starts at zero. */
2325 text_sect
= bfd_get_section_by_name (cur_bfd
, ".text");
2326 if (text_sect
!= NULL
2327 && (bfd_get_section_flags (cur_bfd
, text_sect
) & SEC_RELOC
))
2330 extern_tab
= (EXTR
*) obstack_alloc (&objfile
->psymbol_obstack
,
2331 sizeof (EXTR
) * hdr
->iextMax
);
2333 includes_allocated
= 30;
2335 psymtab_include_list
= (char **) alloca (includes_allocated
*
2337 next_symbol_text_func
= mdebug_next_symbol_text
;
2339 dependencies_allocated
= 30;
2340 dependencies_used
= 0;
2342 (struct partial_symtab
**) alloca (dependencies_allocated
*
2343 sizeof (struct partial_symtab
*));
2345 last_source_file
= NULL
;
2350 * Only parse the Local and External symbols, and the Relative FDR.
2351 * Fixup enough of the loader symtab to be able to use it.
2352 * Allocate space only for the file's portions we need to
2357 max_glevel
= MIN_GLEVEL
;
2359 /* Allocate the map FDR -> PST.
2360 Minor hack: -O3 images might claim some global data belongs
2361 to FDR -1. We`ll go along with that */
2362 fdr_to_pst
= (struct pst_map
*) xzalloc ((hdr
->ifdMax
+ 1) * sizeof *fdr_to_pst
);
2363 old_chain
= make_cleanup (free
, fdr_to_pst
);
2366 struct partial_symtab
*pst
= new_psymtab ("", objfile
, section_offsets
);
2367 fdr_to_pst
[-1].pst
= pst
;
2371 /* Allocate the global pending list. */
2373 ((struct mdebug_pending
**)
2374 obstack_alloc (&objfile
->psymbol_obstack
,
2375 hdr
->ifdMax
* sizeof (struct mdebug_pending
*)));
2376 memset ((PTR
) pending_list
, 0,
2377 hdr
->ifdMax
* sizeof (struct mdebug_pending
*));
2379 /* Pass 0 over external syms: swap them in. */
2380 ext_block
= (EXTR
*) xmalloc (hdr
->iextMax
* sizeof (EXTR
));
2381 make_cleanup (free
, ext_block
);
2383 ext_out
= (char *) debug_info
->external_ext
;
2384 ext_out_end
= ext_out
+ hdr
->iextMax
* external_ext_size
;
2386 for (; ext_out
< ext_out_end
; ext_out
+= external_ext_size
, ext_in
++)
2387 (*swap_ext_in
) (cur_bfd
, ext_out
, ext_in
);
2389 /* Pass 1 over external syms: Presize and partition the list */
2391 ext_in_end
= ext_in
+ hdr
->iextMax
;
2392 for (; ext_in
< ext_in_end
; ext_in
++)
2394 /* See calls to complain below. */
2395 if (ext_in
->ifd
>= -1
2396 && ext_in
->ifd
< hdr
->ifdMax
2397 && ext_in
->asym
.iss
>= 0
2398 && ext_in
->asym
.iss
< hdr
->issExtMax
)
2399 fdr_to_pst
[ext_in
->ifd
].n_globals
++;
2402 /* Pass 1.5 over files: partition out global symbol space */
2404 for (f_idx
= -1; f_idx
< hdr
->ifdMax
; f_idx
++)
2406 fdr_to_pst
[f_idx
].globals_offset
= s_idx
;
2407 s_idx
+= fdr_to_pst
[f_idx
].n_globals
;
2408 fdr_to_pst
[f_idx
].n_globals
= 0;
2413 For ECOFF in ELF, we skip the creation of the minimal symbols.
2414 The ECOFF symbols should be a subset of the Elf symbols, and the
2415 section information of the elf symbols will be more accurate.
2416 FIXME! What about Irix 5's native linker?
2418 By default, Elf sections which don't exist in ECOFF
2419 get put in ECOFF's absolute section by the gnu linker.
2420 Since absolute sections don't get relocated, we
2421 end up calculating an address different from that of
2422 the symbol's minimal symbol (created earlier from the
2425 To fix this, either :
2426 1) don't create the duplicate symbol
2427 (assumes ECOFF symtab is a subset of the ELF symtab;
2428 assumes no side-effects result from ignoring ECOFF symbol)
2429 2) create it, only if lookup for existing symbol in ELF's minimal
2432 assumes no side-effects result from ignoring ECOFF symbol)
2433 3) create it, but lookup ELF's minimal symbol and use it's section
2434 during relocation, then modify "uniqify" phase to merge and
2435 eliminate the duplicate symbol
2436 (highly inefficient)
2438 I've implemented #1 here...
2439 Skip the creation of the minimal symbols based on the ECOFF
2442 /* Pass 2 over external syms: fill in external symbols */
2444 ext_in_end
= ext_in
+ hdr
->iextMax
;
2445 for (; ext_in
< ext_in_end
; ext_in
++)
2447 enum minimal_symbol_type ms_type
= mst_text
;
2448 CORE_ADDR svalue
= ext_in
->asym
.value
;
2450 /* The Irix 5 native tools seem to sometimes generate bogus
2451 external symbols. */
2452 if (ext_in
->ifd
< -1 || ext_in
->ifd
>= hdr
->ifdMax
)
2454 complain (&bad_ext_ifd_complaint
, ext_in
->ifd
, hdr
->ifdMax
);
2457 if (ext_in
->asym
.iss
< 0 || ext_in
->asym
.iss
>= hdr
->issExtMax
)
2459 complain (&bad_ext_iss_complaint
, ext_in
->asym
.iss
,
2464 extern_tab
[fdr_to_pst
[ext_in
->ifd
].globals_offset
2465 + fdr_to_pst
[ext_in
->ifd
].n_globals
++] = *ext_in
;
2468 if (SC_IS_UNDEF (ext_in
->asym
.sc
) || ext_in
->asym
.sc
== scNil
)
2472 /* Pass 3 over files, over local syms: fill in static symbols */
2473 name
= debug_info
->ssext
+ ext_in
->asym
.iss
;
2475 /* Process ECOFF Symbol Types and Storage Classes */
2476 switch (ext_in
->asym
.st
)
2479 /* Beginnning of Procedure */
2480 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2483 /* Load time only static procs */
2484 ms_type
= mst_file_text
;
2485 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2488 /* External symbol */
2489 if (SC_IS_COMMON (ext_in
->asym
.sc
))
2491 /* The value of a common symbol is its size, not its address.
2495 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2498 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
2500 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2503 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
2510 if (SC_IS_TEXT (ext_in
->asym
.sc
))
2512 ms_type
= mst_file_text
;
2513 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2515 else if (SC_IS_DATA (ext_in
->asym
.sc
))
2517 ms_type
= mst_file_data
;
2518 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
2520 else if (SC_IS_BSS (ext_in
->asym
.sc
))
2522 ms_type
= mst_file_bss
;
2523 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
2530 /* The alpha has the section start addresses in stLocal symbols
2531 whose name starts with a `.'. Skip those but complain for all
2532 other stLocal symbols.
2533 Irix6 puts the section start addresses in stNil symbols, skip
2539 ms_type
= mst_unknown
;
2540 complain (&unknown_ext_complaint
, name
);
2542 if (!ECOFF_IN_ELF (cur_bfd
))
2543 prim_record_minimal_symbol (name
, svalue
, ms_type
, objfile
);
2546 /* Pass 3 over files, over local syms: fill in static symbols */
2547 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
2549 struct partial_symtab
*save_pst
;
2553 cur_fdr
= fh
= debug_info
->fdr
+ f_idx
;
2557 fdr_to_pst
[f_idx
].pst
= NULL
;
2561 /* Determine the start address for this object file from the
2562 file header and relocate it, except for Irix 5.2 zero fh->adr. */
2566 if (relocatable
|| textlow
!= 0)
2567 textlow
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2571 pst
= start_psymtab_common (objfile
, section_offsets
,
2574 objfile
->global_psymbols
.next
,
2575 objfile
->static_psymbols
.next
);
2576 pst
->read_symtab_private
= ((char *)
2577 obstack_alloc (&objfile
->psymbol_obstack
,
2578 sizeof (struct symloc
)));
2579 memset ((PTR
) pst
->read_symtab_private
, 0, sizeof (struct symloc
));
2582 FDR_IDX (pst
) = f_idx
;
2583 CUR_BFD (pst
) = cur_bfd
;
2584 DEBUG_SWAP (pst
) = debug_swap
;
2585 DEBUG_INFO (pst
) = debug_info
;
2586 PENDING_LIST (pst
) = pending_list
;
2588 /* The way to turn this into a symtab is to call... */
2589 pst
->read_symtab
= mdebug_psymtab_to_symtab
;
2591 /* Set up language for the pst.
2592 The language from the FDR is used if it is unambigious (e.g. cfront
2593 with native cc and g++ will set the language to C).
2594 Otherwise we have to deduce the language from the filename.
2595 Native ecoff has every header file in a separate FDR, so
2596 deduce_language_from_filename will return language_unknown for
2597 a header file, which is not what we want.
2598 But the FDRs for the header files are after the FDR for the source
2599 file, so we can assign the language of the source file to the
2600 following header files. Then we save the language in the private
2601 pst data so that we can reuse it when building symtabs. */
2602 prev_language
= psymtab_language
;
2606 case langCplusplusV2
:
2607 psymtab_language
= language_cplus
;
2610 psymtab_language
= deduce_language_from_filename (fdr_name (fh
));
2613 if (psymtab_language
== language_unknown
)
2614 psymtab_language
= prev_language
;
2615 PST_PRIVATE (pst
)->pst_language
= psymtab_language
;
2617 pst
->texthigh
= pst
->textlow
;
2619 /* For stabs-in-ecoff files, the second symbol must be @stab.
2620 This symbol is emitted by mips-tfile to signal that the
2621 current object file uses encapsulated stabs instead of mips
2622 ecoff for local symbols. (It is the second symbol because
2623 the first symbol is the stFile used to signal the start of a
2625 processing_gcc_compilation
= 0;
2628 (*swap_sym_in
) (cur_bfd
,
2629 ((char *) debug_info
->external_sym
2630 + (fh
->isymBase
+ 1) * external_sym_size
),
2632 if (STREQ (debug_info
->ss
+ fh
->issBase
+ sh
.iss
, stabs_symbol
))
2633 processing_gcc_compilation
= 2;
2636 if (processing_gcc_compilation
!= 0)
2638 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
2643 (*swap_sym_in
) (cur_bfd
,
2644 (((char *) debug_info
->external_sym
)
2645 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
2647 type_code
= ECOFF_UNMARK_STAB (sh
.index
);
2648 if (!ECOFF_IS_STAB (&sh
))
2650 if (sh
.st
== stProc
|| sh
.st
== stStaticProc
)
2655 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2656 if (sh
.st
== stStaticProc
)
2658 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2659 prim_record_minimal_symbol_and_info (namestring
,
2667 procaddr
= sh
.value
;
2669 isym
= AUX_GET_ISYM (fh
->fBigendian
,
2670 (debug_info
->external_aux
2673 (*swap_sym_in
) (cur_bfd
,
2674 ((char *) debug_info
->external_sym
2675 + ((fh
->isymBase
+ isym
- 1)
2676 * external_sym_size
)),
2680 CORE_ADDR high
= procaddr
+ sh
.value
;
2682 /* Kludge for Irix 5.2 zero fh->adr. */
2684 && (pst
->textlow
== 0 || procaddr
< pst
->textlow
))
2685 pst
->textlow
= procaddr
;
2686 if (high
> pst
->texthigh
)
2687 pst
->texthigh
= high
;
2690 else if (sh
.st
== stStatic
)
2705 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2706 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
2707 prim_record_minimal_symbol_and_info (namestring
,
2717 /* FIXME! Shouldn't this use cases for bss,
2718 then have the default be abs? */
2719 namestring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2720 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
2721 prim_record_minimal_symbol_and_info (namestring
,
2733 /* Handle stabs continuation */
2735 char *stabstring
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2736 int len
= strlen (stabstring
);
2737 while (stabstring
[len
- 1] == '\\')
2740 char *stabstring1
= stabstring
;
2744 /* Ignore continuation char from 1st string */
2747 /* Read next stabstring */
2749 (*swap_sym_in
) (cur_bfd
,
2750 (((char *) debug_info
->external_sym
)
2751 + (fh
->isymBase
+ cur_sdx
)
2752 * external_sym_size
),
2754 stabstring2
= debug_info
->ss
+ fh
->issBase
+ sh2
.iss
;
2755 len2
= strlen (stabstring2
);
2757 /* Concatinate stabstring2 with stabstring1 */
2759 && stabstring
!= debug_info
->ss
+ fh
->issBase
+ sh
.iss
)
2760 stabstring
= xrealloc (stabstring
, len
+ len2
+ 1);
2762 stabstring
= xmalloc (len
+ len2
+ 1);
2763 strcpy (stabstring
, stabstring1
);
2764 strcpy (stabstring
+ len
, stabstring2
);
2768 #define SET_NAMESTRING() \
2769 namestring = stabstring
2770 #define CUR_SYMBOL_TYPE type_code
2771 #define CUR_SYMBOL_VALUE sh.value
2772 #define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\
2774 #define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps,textlow_not_set) (void)0
2775 #define HANDLE_RBRAC(val) \
2776 if ((val) > save_pst->texthigh) save_pst->texthigh = (val);
2777 #include "partial-stab.h"
2780 && stabstring
!= debug_info
->ss
+ fh
->issBase
+ sh
.iss
)
2783 /* end - Handle continuation */
2788 for (cur_sdx
= 0; cur_sdx
< fh
->csym
;)
2791 enum address_class
class;
2793 (*swap_sym_in
) (cur_bfd
,
2794 ((char *) debug_info
->external_sym
2795 + ((fh
->isymBase
+ cur_sdx
)
2796 * external_sym_size
)),
2799 if (ECOFF_IS_STAB (&sh
))
2805 /* Non absolute static symbols go into the minimal table. */
2806 if (SC_IS_UNDEF (sh
.sc
) || sh
.sc
== scNil
2807 || (sh
.index
== indexNil
2808 && (sh
.st
!= stStatic
|| sh
.sc
== scAbs
)))
2810 /* FIXME, premature? */
2815 name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
2821 /* The value of a stEnd symbol is the displacement from the
2822 corresponding start symbol value, do not relocate it. */
2824 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
2831 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
2835 sh
.value
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
2846 prim_record_minimal_symbol_and_info (name
, sh
.value
,
2847 mst_file_text
, NULL
,
2848 SECT_OFF_TEXT
, NULL
,
2854 /* Usually there is a local and a global stProc symbol
2855 for a function. This means that the function name
2856 has already been entered into the mimimal symbol table
2857 while processing the global symbols in pass 2 above.
2858 One notable exception is the PROGRAM name from
2859 f77 compiled executables, it is only put out as
2860 local stProc symbol, and a global MAIN__ stProc symbol
2861 points to it. It doesn't matter though, as gdb is
2862 still able to find the PROGRAM name via the partial
2863 symbol table, and the MAIN__ symbol via the minimal
2865 if (sh
.st
== stProc
)
2866 add_psymbol_to_list (name
, strlen (name
),
2867 VAR_NAMESPACE
, LOC_BLOCK
,
2868 &objfile
->global_psymbols
,
2869 0, sh
.value
, psymtab_language
, objfile
);
2871 add_psymbol_to_list (name
, strlen (name
),
2872 VAR_NAMESPACE
, LOC_BLOCK
,
2873 &objfile
->static_psymbols
,
2874 0, sh
.value
, psymtab_language
, objfile
);
2876 /* Skip over procedure to next one. */
2877 if (sh
.index
>= hdr
->iauxMax
)
2879 /* Should not happen, but does when cross-compiling
2880 with the MIPS compiler. FIXME -- pull later. */
2881 complain (&index_complaint
, name
);
2882 new_sdx
= cur_sdx
+ 1; /* Don't skip at all */
2885 new_sdx
= AUX_GET_ISYM (fh
->fBigendian
,
2886 (debug_info
->external_aux
2889 procaddr
= sh
.value
;
2891 if (new_sdx
<= cur_sdx
)
2893 /* This should not happen either... FIXME. */
2894 complain (&aux_index_complaint
, name
);
2895 new_sdx
= cur_sdx
+ 1; /* Don't skip backward */
2899 (*swap_sym_in
) (cur_bfd
,
2900 ((char *) debug_info
->external_sym
2901 + ((fh
->isymBase
+ cur_sdx
- 1)
2902 * external_sym_size
)),
2907 /* Kludge for Irix 5.2 zero fh->adr. */
2909 && (pst
->textlow
== 0 || procaddr
< pst
->textlow
))
2910 pst
->textlow
= procaddr
;
2912 high
= procaddr
+ sh
.value
;
2913 if (high
> pst
->texthigh
)
2914 pst
->texthigh
= high
;
2917 case stStatic
: /* Variable */
2918 if (SC_IS_DATA (sh
.sc
))
2919 prim_record_minimal_symbol_and_info (name
, sh
.value
,
2920 mst_file_data
, NULL
,
2925 prim_record_minimal_symbol_and_info (name
, sh
.value
,
2933 case stIndirect
: /* Irix5 forward declaration */
2934 /* Skip forward declarations from Irix5 cc */
2937 case stTypedef
: /* Typedef */
2938 /* Skip typedefs for forward declarations and opaque
2939 structs from alpha and mips cc. */
2940 if (sh
.iss
== 0 || has_opaque_xref (fh
, &sh
))
2942 class = LOC_TYPEDEF
;
2945 case stConstant
: /* Constant decl */
2952 case stBlock
: /* { }, str, un, enum */
2953 /* Do not create a partial symbol for cc unnamed aggregates
2954 and gcc empty aggregates. */
2955 if ((sh
.sc
== scInfo
2956 || SC_IS_COMMON (sh
.sc
))
2958 && sh
.index
!= cur_sdx
+ 2)
2960 add_psymbol_to_list (name
, strlen (name
),
2961 STRUCT_NAMESPACE
, LOC_TYPEDEF
,
2962 &objfile
->static_psymbols
,
2964 psymtab_language
, objfile
);
2966 handle_psymbol_enumerators (objfile
, fh
, sh
.st
, sh
.value
);
2968 /* Skip over the block */
2970 if (new_sdx
<= cur_sdx
)
2972 /* This happens with the Ultrix kernel. */
2973 complain (&block_index_complaint
, name
);
2974 new_sdx
= cur_sdx
+ 1; /* Don't skip backward */
2979 case stFile
: /* File headers */
2980 case stLabel
: /* Labels */
2981 case stEnd
: /* Ends of files */
2984 case stLocal
: /* Local variables */
2985 /* Normally these are skipped because we skip over
2986 all blocks we see. However, these can occur
2987 as visible symbols in a .h file that contains code. */
2991 /* Both complaints are valid: one gives symbol name,
2992 the other the offending symbol type. */
2993 complain (&unknown_sym_complaint
, name
);
2994 complain (&unknown_st_complaint
, sh
.st
);
2998 /* Use this gdb symbol */
2999 add_psymbol_to_list (name
, strlen (name
),
3000 VAR_NAMESPACE
, class,
3001 &objfile
->static_psymbols
,
3002 0, sh
.value
, psymtab_language
, objfile
);
3004 cur_sdx
++; /* Go to next file symbol */
3007 /* Now do enter the external symbols. */
3008 ext_ptr
= &extern_tab
[fdr_to_pst
[f_idx
].globals_offset
];
3009 cur_sdx
= fdr_to_pst
[f_idx
].n_globals
;
3010 PST_PRIVATE (save_pst
)->extern_count
= cur_sdx
;
3011 PST_PRIVATE (save_pst
)->extern_tab
= ext_ptr
;
3012 for (; --cur_sdx
>= 0; ext_ptr
++)
3014 enum address_class
class;
3019 if (ext_ptr
->ifd
!= f_idx
)
3021 psh
= &ext_ptr
->asym
;
3023 /* Do not add undefined symbols to the partial symbol table. */
3024 if (SC_IS_UNDEF (psh
->sc
) || psh
->sc
== scNil
)
3027 svalue
= psh
->value
;
3032 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
3039 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
3043 svalue
+= ANOFFSET (section_offsets
, SECT_OFF_BSS
);
3050 /* These are generated for static symbols in .o files,
3055 /* External procedure symbols have been entered
3056 into the minimal symbol table in pass 2 above.
3057 Ignore them, as parse_external will ignore them too. */
3063 complain (&unknown_ext_complaint
,
3064 debug_info
->ssext
+ psh
->iss
);
3065 /* Fall through, pretend it's global. */
3067 /* Global common symbols are resolved by the runtime loader,
3069 if (SC_IS_COMMON (psh
->sc
))
3075 name
= debug_info
->ssext
+ psh
->iss
;
3076 add_psymbol_to_list (name
, strlen (name
),
3077 VAR_NAMESPACE
, class,
3078 &objfile
->global_psymbols
,
3080 psymtab_language
, objfile
);
3084 /* Link pst to FDR. end_psymtab returns NULL if the psymtab was
3085 empty and put on the free list. */
3086 fdr_to_pst
[f_idx
].pst
= end_psymtab (save_pst
,
3087 psymtab_include_list
, includes_used
,
3088 -1, save_pst
->texthigh
,
3089 dependency_list
, dependencies_used
, textlow_not_set
);
3091 dependencies_used
= 0;
3093 if (objfile
->ei
.entry_point
>= save_pst
->textlow
&&
3094 objfile
->ei
.entry_point
< save_pst
->texthigh
)
3096 objfile
->ei
.entry_file_lowpc
= save_pst
->textlow
;
3097 objfile
->ei
.entry_file_highpc
= save_pst
->texthigh
;
3100 /* The objfile has its functions reordered if this partial symbol
3101 table overlaps any other partial symbol table.
3102 We cannot assume a reordered objfile if a partial symbol table
3103 is contained within another partial symbol table, as partial symbol
3104 tables for include files with executable code are contained
3105 within the partial symbol table for the including source file,
3106 and we do not want to flag the objfile reordered for these cases.
3108 This strategy works well for Irix-5.2 shared libraries, but we
3109 might have to use a more elaborate (and slower) algorithm for
3111 save_pst
= fdr_to_pst
[f_idx
].pst
;
3112 if (save_pst
!= NULL
3113 && save_pst
->textlow
!= 0
3114 && !(objfile
->flags
& OBJF_REORDERED
))
3116 ALL_OBJFILE_PSYMTABS (objfile
, pst
)
3119 && save_pst
->textlow
>= pst
->textlow
3120 && save_pst
->textlow
< pst
->texthigh
3121 && save_pst
->texthigh
> pst
->texthigh
)
3123 objfile
->flags
|= OBJF_REORDERED
;
3130 /* Now scan the FDRs for dependencies */
3131 for (f_idx
= 0; f_idx
< hdr
->ifdMax
; f_idx
++)
3133 fh
= f_idx
+ debug_info
->fdr
;
3134 pst
= fdr_to_pst
[f_idx
].pst
;
3136 if (pst
== (struct partial_symtab
*) NULL
)
3139 /* This should catch stabs-in-ecoff. */
3143 /* Skip the first file indirect entry as it is a self dependency
3144 for source files or a reverse .h -> .c dependency for header files. */
3145 pst
->number_of_dependencies
= 0;
3147 ((struct partial_symtab
**)
3148 obstack_alloc (&objfile
->psymbol_obstack
,
3150 * sizeof (struct partial_symtab
*))));
3151 for (s_idx
= 1; s_idx
< fh
->crfd
; s_idx
++)
3155 (*swap_rfd_in
) (cur_bfd
,
3156 ((char *) debug_info
->external_rfd
3157 + (fh
->rfdBase
+ s_idx
) * external_rfd_size
),
3159 if (rh
< 0 || rh
>= hdr
->ifdMax
)
3161 complain (&bad_file_number_complaint
, rh
);
3165 /* Skip self dependencies of header files. */
3169 /* Do not add to dependeny list if psymtab was empty. */
3170 if (fdr_to_pst
[rh
].pst
== (struct partial_symtab
*) NULL
)
3172 pst
->dependencies
[pst
->number_of_dependencies
++] = fdr_to_pst
[rh
].pst
;
3176 /* Remove the dummy psymtab created for -O3 images above, if it is
3177 still empty, to enable the detection of stripped executables. */
3178 if (objfile
->psymtabs
->next
== NULL
3179 && objfile
->psymtabs
->number_of_dependencies
== 0
3180 && objfile
->psymtabs
->n_global_syms
== 0
3181 && objfile
->psymtabs
->n_static_syms
== 0)
3182 objfile
->psymtabs
= NULL
;
3183 do_cleanups (old_chain
);
3186 /* If the current psymbol has an enumerated type, we need to add
3187 all the the enum constants to the partial symbol table. */
3190 handle_psymbol_enumerators (objfile
, fh
, stype
, svalue
)
3191 struct objfile
*objfile
;
3196 const bfd_size_type external_sym_size
= debug_swap
->external_sym_size
;
3197 void (*const swap_sym_in
) PARAMS ((bfd
*, PTR
, SYMR
*))
3198 = debug_swap
->swap_sym_in
;
3199 char *ext_sym
= ((char *) debug_info
->external_sym
3200 + ((fh
->isymBase
+ cur_sdx
+ 1) * external_sym_size
));
3210 /* It is an enumerated type if the next symbol entry is a stMember
3211 and its auxiliary index is indexNil or its auxiliary entry
3212 is a plain btNil or btVoid.
3213 Alpha cc -migrate enums are recognized by a zero index and
3214 a zero symbol value.
3215 DU 4.0 cc enums are recognized by a member type of btEnum without
3216 qualifiers and a zero symbol value. */
3217 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3218 if (sh
.st
!= stMember
)
3221 if (sh
.index
== indexNil
3222 || (sh
.index
== 0 && svalue
== 0))
3224 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
,
3225 &(debug_info
->external_aux
3226 + fh
->iauxBase
+ sh
.index
)->a_ti
,
3228 if ((tir
.bt
!= btNil
3230 && (tir
.bt
!= btEnum
|| svalue
!= 0))
3231 || tir
.tq0
!= tqNil
)
3243 (*swap_sym_in
) (cur_bfd
, ext_sym
, &sh
);
3244 if (sh
.st
!= stMember
)
3246 name
= debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3248 /* Note that the value doesn't matter for enum constants
3249 in psymtabs, just in symtabs. */
3250 add_psymbol_to_list (name
, strlen (name
),
3251 VAR_NAMESPACE
, LOC_CONST
,
3252 &objfile
->static_psymbols
, 0,
3253 (CORE_ADDR
) 0, psymtab_language
, objfile
);
3254 ext_sym
+= external_sym_size
;
3259 mdebug_next_symbol_text (objfile
)
3260 struct objfile
*objfile
; /* argument objfile is currently unused */
3265 (*debug_swap
->swap_sym_in
) (cur_bfd
,
3266 ((char *) debug_info
->external_sym
3267 + ((cur_fdr
->isymBase
+ cur_sdx
)
3268 * debug_swap
->external_sym_size
)),
3270 return debug_info
->ss
+ cur_fdr
->issBase
+ sh
.iss
;
3273 /* Ancillary function to psymtab_to_symtab(). Does all the work
3274 for turning the partial symtab PST into a symtab, recurring
3275 first on all dependent psymtabs. The argument FILENAME is
3276 only passed so we can see in debug stack traces what file
3279 This function has a split personality, based on whether the
3280 symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
3281 The flow of control and even the memory allocation differs. FIXME. */
3284 psymtab_to_symtab_1 (pst
, filename
)
3285 struct partial_symtab
*pst
;
3288 bfd_size_type external_sym_size
;
3289 bfd_size_type external_pdr_size
;
3290 void (*swap_sym_in
) PARAMS ((bfd
*, PTR
, SYMR
*));
3291 void (*swap_pdr_in
) PARAMS ((bfd
*, PTR
, PDR
*));
3295 struct linetable
*lines
;
3296 CORE_ADDR lowest_pdr_addr
= 0;
3302 /* Read in all partial symbtabs on which this one is dependent.
3303 NOTE that we do have circular dependencies, sigh. We solved
3304 that by setting pst->readin before this point. */
3306 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
3307 if (!pst
->dependencies
[i
]->readin
)
3309 /* Inform about additional files to be read in. */
3312 fputs_filtered (" ", gdb_stdout
);
3314 fputs_filtered ("and ", gdb_stdout
);
3316 printf_filtered ("%s...",
3317 pst
->dependencies
[i
]->filename
);
3318 wrap_here (""); /* Flush output */
3319 gdb_flush (gdb_stdout
);
3321 /* We only pass the filename for debug purposes */
3322 psymtab_to_symtab_1 (pst
->dependencies
[i
],
3323 pst
->dependencies
[i
]->filename
);
3326 /* Do nothing if this is a dummy psymtab. */
3328 if (pst
->n_global_syms
== 0 && pst
->n_static_syms
== 0
3329 && pst
->textlow
== 0 && pst
->texthigh
== 0)
3332 /* Now read the symbols for this symtab */
3334 cur_bfd
= CUR_BFD (pst
);
3335 debug_swap
= DEBUG_SWAP (pst
);
3336 debug_info
= DEBUG_INFO (pst
);
3337 pending_list
= PENDING_LIST (pst
);
3338 external_sym_size
= debug_swap
->external_sym_size
;
3339 external_pdr_size
= debug_swap
->external_pdr_size
;
3340 swap_sym_in
= debug_swap
->swap_sym_in
;
3341 swap_pdr_in
= debug_swap
->swap_pdr_in
;
3342 current_objfile
= pst
->objfile
;
3343 cur_fd
= FDR_IDX (pst
);
3344 fh
= ((cur_fd
== -1)
3346 : debug_info
->fdr
+ cur_fd
);
3349 /* See comment in parse_partial_symbols about the @stabs sentinel. */
3350 processing_gcc_compilation
= 0;
3351 if (fh
!= (FDR
*) NULL
&& fh
->csym
>= 2)
3355 (*swap_sym_in
) (cur_bfd
,
3356 ((char *) debug_info
->external_sym
3357 + (fh
->isymBase
+ 1) * external_sym_size
),
3359 if (STREQ (debug_info
->ss
+ fh
->issBase
+ sh
.iss
,
3362 /* We indicate that this is a GCC compilation so that certain
3363 features will be enabled in stabsread/dbxread. */
3364 processing_gcc_compilation
= 2;
3368 if (processing_gcc_compilation
!= 0)
3371 /* This symbol table contains stabs-in-ecoff entries. */
3373 /* Parse local symbols first */
3375 if (fh
->csym
<= 2) /* FIXME, this blows psymtab->symtab ptr */
3377 current_objfile
= NULL
;
3380 for (cur_sdx
= 2; cur_sdx
< fh
->csym
; cur_sdx
++)
3386 (*swap_sym_in
) (cur_bfd
,
3387 (((char *) debug_info
->external_sym
)
3388 + (fh
->isymBase
+ cur_sdx
) * external_sym_size
),
3390 name
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3392 /* XXX This is a hack. It will go away! */
3393 if (ECOFF_IS_STAB (&sh
) || (name
[0] == '#'))
3395 int type_code
= ECOFF_UNMARK_STAB (sh
.index
);
3397 /* We should never get non N_STAB symbols here, but they
3398 should be harmless, so keep process_one_symbol from
3399 complaining about them. */
3400 if (type_code
& N_STAB
)
3402 process_one_symbol (type_code
, 0, valu
, name
,
3403 pst
->section_offsets
, pst
->objfile
);
3405 /* Similarly a hack. */
3406 else if (name
[0] == '#')
3408 process_one_symbol (N_SLINE
, 0, valu
, name
,
3409 pst
->section_offsets
, pst
->objfile
);
3411 if (type_code
== N_FUN
)
3413 /* Make up special symbol to contain
3414 procedure specific info */
3415 struct mips_extra_func_info
*e
=
3416 ((struct mips_extra_func_info
*)
3417 obstack_alloc (¤t_objfile
->symbol_obstack
,
3418 sizeof (struct mips_extra_func_info
)));
3419 struct symbol
*s
= new_symbol (MIPS_EFI_SYMBOL_NAME
);
3421 memset ((PTR
) e
, 0, sizeof (struct mips_extra_func_info
));
3422 SYMBOL_NAMESPACE (s
) = LABEL_NAMESPACE
;
3423 SYMBOL_CLASS (s
) = LOC_CONST
;
3424 SYMBOL_TYPE (s
) = mdebug_type_void
;
3425 SYMBOL_VALUE (s
) = (long) e
;
3426 e
->pdr
.framereg
= -1;
3427 add_symbol_to_list (s
, &local_symbols
);
3430 else if (sh
.st
== stLabel
)
3432 if (sh
.index
== indexNil
)
3434 /* This is what the gcc2_compiled and __gnu_compiled_*
3435 show up as. So don't complain. */
3440 /* Handle encoded stab line number. */
3441 valu
+= ANOFFSET (pst
->section_offsets
, SECT_OFF_TEXT
);
3442 record_line (current_subfile
, sh
.index
, valu
);
3445 else if (sh
.st
== stProc
|| sh
.st
== stStaticProc
3446 || sh
.st
== stStatic
|| sh
.st
== stEnd
)
3447 /* These are generated by gcc-2.x, do not complain */
3450 complain (&stab_unknown_complaint
, name
);
3452 st
= end_symtab (pst
->texthigh
, pst
->objfile
, SECT_OFF_TEXT
);
3455 /* Sort the symbol table now, we are done adding symbols to it.
3456 We must do this before parse_procedure calls lookup_symbol. */
3457 sort_symtab_syms (st
);
3459 /* There used to be a call to sort_blocks here, but this should not
3460 be necessary for stabs symtabs. And as sort_blocks modifies the
3461 start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
3462 it did the wrong thing if the first procedure in a file was
3463 generated via asm statements. */
3465 /* Fill in procedure info next. */
3469 struct cleanup
*old_chain
;
3475 pr_block
= (PDR
*) xmalloc (fh
->cpd
* sizeof (PDR
));
3476 old_chain
= make_cleanup (free
, pr_block
);
3478 pdr_ptr
= ((char *) debug_info
->external_pdr
3479 + fh
->ipdFirst
* external_pdr_size
);
3480 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
3484 pdr_ptr
+= external_pdr_size
, pdr_in
++)
3486 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
3488 /* Determine lowest PDR address, the PDRs are not always
3490 if (pdr_in
== pr_block
)
3491 lowest_pdr_addr
= pdr_in
->adr
;
3492 else if (pdr_in
->adr
< lowest_pdr_addr
)
3493 lowest_pdr_addr
= pdr_in
->adr
;
3497 pdr_in_end
= pdr_in
+ fh
->cpd
;
3498 for (; pdr_in
< pdr_in_end
; pdr_in
++)
3499 parse_procedure (pdr_in
, st
, pst
);
3501 do_cleanups (old_chain
);
3506 /* This symbol table contains ordinary ecoff entries. */
3512 /* How many symbols will we need */
3513 /* FIXME, this does not count enum values. */
3514 f_max
= pst
->n_global_syms
+ pst
->n_static_syms
;
3518 st
= new_symtab ("unknown", f_max
, 0, pst
->objfile
);
3522 f_max
+= fh
->csym
+ fh
->cpd
;
3523 maxlines
= 2 * fh
->cline
;
3524 st
= new_symtab (pst
->filename
, 2 * f_max
, maxlines
, pst
->objfile
);
3526 /* The proper language was already determined when building
3527 the psymtab, use it. */
3528 st
->language
= PST_PRIVATE (pst
)->pst_language
;
3531 psymtab_language
= st
->language
;
3533 lines
= LINETABLE (st
);
3535 /* Get a new lexical context */
3537 push_parse_stack ();
3538 top_stack
->cur_st
= st
;
3539 top_stack
->cur_block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (st
),
3541 BLOCK_START (top_stack
->cur_block
) = pst
->textlow
;
3542 BLOCK_END (top_stack
->cur_block
) = 0;
3543 top_stack
->blocktype
= stFile
;
3544 top_stack
->maxsyms
= 2 * f_max
;
3545 top_stack
->cur_type
= 0;
3546 top_stack
->procadr
= 0;
3547 top_stack
->numargs
= 0;
3548 found_ecoff_debugging_info
= 0;
3555 /* Parse local symbols first */
3556 sym_ptr
= ((char *) debug_info
->external_sym
3557 + fh
->isymBase
* external_sym_size
);
3558 sym_end
= sym_ptr
+ fh
->csym
* external_sym_size
;
3559 while (sym_ptr
< sym_end
)
3564 (*swap_sym_in
) (cur_bfd
, sym_ptr
, &sh
);
3565 c
= parse_symbol (&sh
,
3566 debug_info
->external_aux
+ fh
->iauxBase
,
3567 sym_ptr
, fh
->fBigendian
, pst
->section_offsets
);
3568 sym_ptr
+= c
* external_sym_size
;
3571 /* Linenumbers. At the end, check if we can save memory.
3572 parse_lines has to look ahead an arbitrary number of PDR
3573 structures, so we swap them all first. */
3577 struct cleanup
*old_chain
;
3583 pr_block
= (PDR
*) xmalloc (fh
->cpd
* sizeof (PDR
));
3585 old_chain
= make_cleanup (free
, pr_block
);
3587 pdr_ptr
= ((char *) debug_info
->external_pdr
3588 + fh
->ipdFirst
* external_pdr_size
);
3589 pdr_end
= pdr_ptr
+ fh
->cpd
* external_pdr_size
;
3593 pdr_ptr
+= external_pdr_size
, pdr_in
++)
3595 (*swap_pdr_in
) (cur_bfd
, pdr_ptr
, pdr_in
);
3597 /* Determine lowest PDR address, the PDRs are not always
3599 if (pdr_in
== pr_block
)
3600 lowest_pdr_addr
= pdr_in
->adr
;
3601 else if (pdr_in
->adr
< lowest_pdr_addr
)
3602 lowest_pdr_addr
= pdr_in
->adr
;
3605 parse_lines (fh
, pr_block
, lines
, maxlines
, pst
, lowest_pdr_addr
);
3606 if (lines
->nitems
< fh
->cline
)
3607 lines
= shrink_linetable (lines
);
3609 /* Fill in procedure info next. */
3611 pdr_in_end
= pdr_in
+ fh
->cpd
;
3612 for (; pdr_in
< pdr_in_end
; pdr_in
++)
3613 parse_procedure (pdr_in
, 0, pst
);
3615 do_cleanups (old_chain
);
3619 LINETABLE (st
) = lines
;
3621 /* .. and our share of externals.
3622 XXX use the global list to speed up things here. how?
3623 FIXME, Maybe quit once we have found the right number of ext's? */
3624 top_stack
->cur_st
= st
;
3625 top_stack
->cur_block
= BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack
->cur_st
),
3627 top_stack
->blocktype
= stFile
;
3629 = (debug_info
->symbolic_header
.isymMax
3630 + debug_info
->symbolic_header
.ipdMax
3631 + debug_info
->symbolic_header
.iextMax
);
3633 ext_ptr
= PST_PRIVATE (pst
)->extern_tab
;
3634 for (i
= PST_PRIVATE (pst
)->extern_count
; --i
>= 0; ext_ptr
++)
3635 parse_external (ext_ptr
, fh
->fBigendian
, pst
->section_offsets
);
3637 /* If there are undefined symbols, tell the user.
3638 The alpha has an undefined symbol for every symbol that is
3639 from a shared library, so tell the user only if verbose is on. */
3640 if (info_verbose
&& n_undef_symbols
)
3642 printf_filtered ("File %s contains %d unresolved references:",
3643 st
->filename
, n_undef_symbols
);
3644 printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
3645 n_undef_vars
, n_undef_procs
, n_undef_labels
);
3646 n_undef_symbols
= n_undef_labels
= n_undef_vars
= n_undef_procs
= 0;
3653 /* Sort the symbol table now, we are done adding symbols to it. */
3654 sort_symtab_syms (st
);
3659 /* Now link the psymtab and the symtab. */
3662 current_objfile
= NULL
;
3665 /* Ancillary parsing procedures. */
3667 /* Return 1 if the symbol pointed to by SH has a cross reference
3668 to an opaque aggregate type, else 0. */
3671 has_opaque_xref (fh
, sh
)
3680 if (sh
->index
== indexNil
)
3683 ax
= debug_info
->external_aux
+ fh
->iauxBase
+ sh
->index
;
3684 (*debug_swap
->swap_tir_in
) (fh
->fBigendian
, &ax
->a_ti
, &tir
);
3685 if (tir
.bt
!= btStruct
&& tir
.bt
!= btUnion
&& tir
.bt
!= btEnum
)
3689 (*debug_swap
->swap_rndx_in
) (fh
->fBigendian
, &ax
->a_rndx
, rn
);
3690 if (rn
->rfd
== 0xfff)
3691 rf
= AUX_GET_ISYM (fh
->fBigendian
, ax
+ 1);
3699 /* Lookup the type at relative index RN. Return it in TPP
3700 if found and in any event come up with its name PNAME.
3701 BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
3702 Return value says how many aux symbols we ate. */
3705 cross_ref (fd
, ax
, tpp
, type_code
, pname
, bigend
, sym_name
)
3709 enum type_code type_code
; /* Use to alloc new type if none is found. */
3721 struct mdebug_pending
*pend
;
3723 *tpp
= (struct type
*) NULL
;
3725 (*debug_swap
->swap_rndx_in
) (bigend
, &ax
->a_rndx
, rn
);
3727 /* Escape index means 'the next one' */
3728 if (rn
->rfd
== 0xfff)
3731 rf
= AUX_GET_ISYM (bigend
, ax
+ 1);
3738 /* mips cc uses a rf of -1 for opaque struct definitions.
3739 Set TYPE_FLAG_STUB for these types so that check_typedef will
3740 resolve them if the struct gets defined in another compilation unit. */
3743 *pname
= "<undefined>";
3744 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
3745 TYPE_FLAGS (*tpp
) |= TYPE_FLAG_STUB
;
3749 /* mips cc uses an escaped rn->index of 0 for struct return types
3750 of procedures that were compiled without -g. These will always remain
3752 if (rn
->rfd
== 0xfff && rn
->index
== 0)
3754 *pname
= "<undefined>";
3758 /* Find the relative file descriptor and the symbol in it. */
3759 fh
= get_rfd (fd
, rf
);
3760 xref_fd
= fh
- debug_info
->fdr
;
3762 if (rn
->index
>= fh
->csym
)
3764 /* File indirect entry is corrupt. */
3765 *pname
= "<illegal>";
3766 complain (&bad_rfd_entry_complaint
,
3767 sym_name
, xref_fd
, rn
->index
);
3771 /* If we have processed this symbol then we left a forwarding
3772 pointer to the type in the pending list. If not, we`ll put
3773 it in a list of pending types, to be processed later when
3774 the file will be. In any event, we collect the name for the
3777 esh
= ((char *) debug_info
->external_sym
3778 + ((fh
->isymBase
+ rn
->index
)
3779 * debug_swap
->external_sym_size
));
3780 (*debug_swap
->swap_sym_in
) (cur_bfd
, esh
, &sh
);
3782 /* Make sure that this type of cross reference can be handled. */
3783 if ((sh
.sc
!= scInfo
3784 || (sh
.st
!= stBlock
&& sh
.st
!= stTypedef
&& sh
.st
!= stIndirect
3785 && sh
.st
!= stStruct
&& sh
.st
!= stUnion
3786 && sh
.st
!= stEnum
))
3787 && (sh
.st
!= stBlock
|| !SC_IS_COMMON (sh
.sc
)))
3789 /* File indirect entry is corrupt. */
3790 *pname
= "<illegal>";
3791 complain (&bad_rfd_entry_complaint
,
3792 sym_name
, xref_fd
, rn
->index
);
3796 *pname
= debug_info
->ss
+ fh
->issBase
+ sh
.iss
;
3798 pend
= is_pending_symbol (fh
, esh
);
3803 /* We have not yet seen this type. */
3805 if ((sh
.iss
== 0 && sh
.st
== stTypedef
) || sh
.st
== stIndirect
)
3809 /* alpha cc puts out a stTypedef with a sh.iss of zero for
3811 a) forward declarations of structs/unions/enums which are not
3812 defined in this compilation unit.
3813 For these the type will be void. This is a bad design decision
3814 as cross referencing across compilation units is impossible
3815 due to the missing name.
3816 b) forward declarations of structs/unions/enums/typedefs which
3817 are defined later in this file or in another file in the same
3818 compilation unit. Irix5 cc uses a stIndirect symbol for this.
3819 Simply cross reference those again to get the true type.
3820 The forward references are not entered in the pending list and
3821 in the symbol table. */
3823 (*debug_swap
->swap_tir_in
) (bigend
,
3824 &(debug_info
->external_aux
3825 + fh
->iauxBase
+ sh
.index
)->a_ti
,
3827 if (tir
.tq0
!= tqNil
)
3828 complain (&illegal_forward_tq0_complaint
, sym_name
);
3832 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
,
3834 *pname
= "<undefined>";
3841 (debug_info
->external_aux
3842 + fh
->iauxBase
+ sh
.index
+ 1),
3843 tpp
, type_code
, pname
,
3844 fh
->fBigendian
, sym_name
);
3848 /* Follow a forward typedef. This might recursively
3849 call cross_ref till we get a non typedef'ed type.
3850 FIXME: This is not correct behaviour, but gdb currently
3851 cannot handle typedefs without type copying. Type
3852 copying is impossible as we might have mutual forward
3853 references between two files and the copied type would not
3854 get filled in when we later parse its definition. */
3855 *tpp
= parse_type (xref_fd
,
3856 debug_info
->external_aux
+ fh
->iauxBase
,
3860 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
3861 add_pending (fh
, esh
, *tpp
);
3865 complain (&illegal_forward_bt_complaint
, tir
.bt
, sym_name
);
3866 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
,
3872 else if (sh
.st
== stTypedef
)
3874 /* Parse the type for a normal typedef. This might recursively call
3875 cross_ref till we get a non typedef'ed type.
3876 FIXME: This is not correct behaviour, but gdb currently
3877 cannot handle typedefs without type copying. But type copying is
3878 impossible as we might have mutual forward references between
3879 two files and the copied type would not get filled in when
3880 we later parse its definition. */
3881 *tpp
= parse_type (xref_fd
,
3882 debug_info
->external_aux
+ fh
->iauxBase
,
3886 debug_info
->ss
+ fh
->issBase
+ sh
.iss
);
3890 /* Cross reference to a struct/union/enum which is defined
3891 in another file in the same compilation unit but that file
3892 has not been parsed yet.
3893 Initialize the type only, it will be filled in when
3894 it's definition is parsed. */
3895 *tpp
= init_type (type_code
, 0, 0, (char *) NULL
, current_objfile
);
3897 add_pending (fh
, esh
, *tpp
);
3900 /* We used one auxent normally, two if we got a "next one" rf. */
3905 /* Quick&dirty lookup procedure, to avoid the MI ones that require
3906 keeping the symtab sorted */
3908 static struct symbol
*
3909 mylookup_symbol (name
, block
, namespace, class)
3911 register struct block
*block
;
3912 namespace_enum
namespace;
3913 enum address_class
class;
3915 register int bot
, top
, inc
;
3916 register struct symbol
*sym
;
3919 top
= BLOCK_NSYMS (block
);
3923 sym
= BLOCK_SYM (block
, bot
);
3924 if (SYMBOL_NAME (sym
)[0] == inc
3925 && SYMBOL_NAMESPACE (sym
) == namespace
3926 && SYMBOL_CLASS (sym
) == class
3927 && strcmp (SYMBOL_NAME (sym
), name
) == 0)
3931 block
= BLOCK_SUPERBLOCK (block
);
3933 return mylookup_symbol (name
, block
, namespace, class);
3938 /* Add a new symbol S to a block B.
3939 Infrequently, we will need to reallocate the block to make it bigger.
3940 We only detect this case when adding to top_stack->cur_block, since
3941 that's the only time we know how big the block is. FIXME. */
3948 int nsyms
= BLOCK_NSYMS (b
)++;
3949 struct block
*origb
;
3950 struct parse_stack
*stackp
;
3952 if (b
== top_stack
->cur_block
&&
3953 nsyms
>= top_stack
->maxsyms
)
3955 complain (&block_overflow_complaint
, SYMBOL_NAME (s
));
3956 /* In this case shrink_block is actually grow_block, since
3957 BLOCK_NSYMS(b) is larger than its current size. */
3959 b
= shrink_block (top_stack
->cur_block
, top_stack
->cur_st
);
3961 /* Now run through the stack replacing pointers to the
3962 original block. shrink_block has already done this
3963 for the blockvector and BLOCK_FUNCTION. */
3964 for (stackp
= top_stack
; stackp
; stackp
= stackp
->next
)
3966 if (stackp
->cur_block
== origb
)
3968 stackp
->cur_block
= b
;
3969 stackp
->maxsyms
= BLOCK_NSYMS (b
);
3973 BLOCK_SYM (b
, nsyms
) = s
;
3976 /* Add a new block B to a symtab S */
3983 struct blockvector
*bv
= BLOCKVECTOR (s
);
3985 bv
= (struct blockvector
*) xrealloc ((PTR
) bv
,
3986 (sizeof (struct blockvector
)
3987 + BLOCKVECTOR_NBLOCKS (bv
)
3988 * sizeof (bv
->block
)));
3989 if (bv
!= BLOCKVECTOR (s
))
3990 BLOCKVECTOR (s
) = bv
;
3992 BLOCKVECTOR_BLOCK (bv
, BLOCKVECTOR_NBLOCKS (bv
)++) = b
;
3995 /* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
3996 MIPS' linenumber encoding might need more than one byte
3997 to describe it, LAST is used to detect these continuation lines.
3999 Combining lines with the same line number seems like a bad idea.
4000 E.g: There could be a line number entry with the same line number after the
4001 prologue and GDB should not ignore it (this is a better way to find
4002 a prologue than mips_skip_prologue).
4003 But due to the compressed line table format there are line number entries
4004 for the same line which are needed to bridge the gap to the next
4005 line number entry. These entries have a bogus address info with them
4006 and we are unable to tell them from intended duplicate line number
4008 This is another reason why -ggdb debugging format is preferable. */
4011 add_line (lt
, lineno
, adr
, last
)
4012 struct linetable
*lt
;
4017 /* DEC c89 sometimes produces zero linenos which confuse gdb.
4018 Change them to something sensible. */
4022 last
= -2; /* make sure we record first line */
4024 if (last
== lineno
) /* skip continuation lines */
4027 lt
->item
[lt
->nitems
].line
= lineno
;
4028 lt
->item
[lt
->nitems
++].pc
= adr
<< 2;
4032 /* Sorting and reordering procedures */
4034 /* Blocks with a smaller low bound should come first */
4037 compare_blocks (arg1
, arg2
)
4041 register int addr_diff
;
4042 struct block
**b1
= (struct block
**) arg1
;
4043 struct block
**b2
= (struct block
**) arg2
;
4045 addr_diff
= (BLOCK_START ((*b1
))) - (BLOCK_START ((*b2
)));
4047 return (BLOCK_END ((*b2
))) - (BLOCK_END ((*b1
)));
4051 /* Sort the blocks of a symtab S.
4052 Reorder the blocks in the blockvector by code-address,
4053 as required by some MI search routines */
4059 struct blockvector
*bv
= BLOCKVECTOR (s
);
4061 if (BLOCKVECTOR_NBLOCKS (bv
) <= 2)
4064 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) == 0)
4065 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = 0;
4066 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) == 0)
4067 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) = 0;
4071 * This is very unfortunate: normally all functions are compiled in
4072 * the order they are found, but if the file is compiled -O3 things
4073 * are very different. It would be nice to find a reliable test
4074 * to detect -O3 images in advance.
4076 if (BLOCKVECTOR_NBLOCKS (bv
) > 3)
4077 qsort (&BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
),
4078 BLOCKVECTOR_NBLOCKS (bv
) - FIRST_LOCAL_BLOCK
,
4079 sizeof (struct block
*),
4083 register CORE_ADDR high
= 0;
4084 register int i
, j
= BLOCKVECTOR_NBLOCKS (bv
);
4086 for (i
= FIRST_LOCAL_BLOCK
; i
< j
; i
++)
4087 if (high
< BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
)))
4088 high
= BLOCK_END (BLOCKVECTOR_BLOCK (bv
, i
));
4089 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) = high
;
4092 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
)) =
4093 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, FIRST_LOCAL_BLOCK
));
4095 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4096 BLOCK_START (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4097 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, STATIC_BLOCK
)) =
4098 BLOCK_END (BLOCKVECTOR_BLOCK (bv
, GLOBAL_BLOCK
));
4102 /* Constructor/restructor/destructor procedures */
4104 /* Allocate a new symtab for NAME. Needs an estimate of how many symbols
4105 MAXSYMS and linenumbers MAXLINES we'll put in it */
4107 static struct symtab
*
4108 new_symtab (name
, maxsyms
, maxlines
, objfile
)
4112 struct objfile
*objfile
;
4114 struct symtab
*s
= allocate_symtab (name
, objfile
);
4116 LINETABLE (s
) = new_linetable (maxlines
);
4118 /* All symtabs must have at least two blocks */
4119 BLOCKVECTOR (s
) = new_bvect (2);
4120 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
) = new_block (maxsyms
);
4121 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
) = new_block (maxsyms
);
4122 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), STATIC_BLOCK
)) =
4123 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s
), GLOBAL_BLOCK
);
4125 s
->free_code
= free_linetable
;
4126 s
->debugformat
= obsavestring ("ECOFF", 5,
4127 &objfile
->symbol_obstack
);
4131 /* Allocate a new partial_symtab NAME */
4133 static struct partial_symtab
*
4134 new_psymtab (name
, objfile
, section_offsets
)
4136 struct objfile
*objfile
;
4137 struct section_offsets
*section_offsets
;
4139 struct partial_symtab
*psymtab
;
4141 psymtab
= allocate_psymtab (name
, objfile
);
4142 psymtab
->section_offsets
= section_offsets
;
4144 /* Keep a backpointer to the file's symbols */
4146 psymtab
->read_symtab_private
= ((char *)
4147 obstack_alloc (&objfile
->psymbol_obstack
,
4148 sizeof (struct symloc
)));
4149 memset ((PTR
) psymtab
->read_symtab_private
, 0, sizeof (struct symloc
));
4150 CUR_BFD (psymtab
) = cur_bfd
;
4151 DEBUG_SWAP (psymtab
) = debug_swap
;
4152 DEBUG_INFO (psymtab
) = debug_info
;
4153 PENDING_LIST (psymtab
) = pending_list
;
4155 /* The way to turn this into a symtab is to call... */
4156 psymtab
->read_symtab
= mdebug_psymtab_to_symtab
;
4161 /* Allocate a linetable array of the given SIZE. Since the struct
4162 already includes one item, we subtract one when calculating the
4163 proper size to allocate. */
4165 static struct linetable
*
4166 new_linetable (size
)
4169 struct linetable
*l
;
4171 size
= (size
- 1) * sizeof (l
->item
) + sizeof (struct linetable
);
4172 l
= (struct linetable
*) xmalloc (size
);
4177 /* Oops, too big. Shrink it. This was important with the 2.4 linetables,
4178 I am not so sure about the 3.4 ones.
4180 Since the struct linetable already includes one item, we subtract one when
4181 calculating the proper size to allocate. */
4183 static struct linetable
*
4184 shrink_linetable (lt
)
4185 struct linetable
*lt
;
4188 return (struct linetable
*) xrealloc ((PTR
) lt
,
4189 (sizeof (struct linetable
)
4191 * sizeof (lt
->item
))));
4194 /* Allocate and zero a new blockvector of NBLOCKS blocks. */
4196 static struct blockvector
*
4200 struct blockvector
*bv
;
4203 size
= sizeof (struct blockvector
) + nblocks
* sizeof (struct block
*);
4204 bv
= (struct blockvector
*) xzalloc (size
);
4206 BLOCKVECTOR_NBLOCKS (bv
) = nblocks
;
4211 /* Allocate and zero a new block of MAXSYMS symbols */
4213 static struct block
*
4217 int size
= sizeof (struct block
) + (maxsyms
- 1) * sizeof (struct symbol
*);
4219 return (struct block
*) xzalloc (size
);
4222 /* Ooops, too big. Shrink block B in symtab S to its minimal size.
4223 Shrink_block can also be used by add_symbol to grow a block. */
4225 static struct block
*
4231 struct blockvector
*bv
= BLOCKVECTOR (s
);
4234 /* Just reallocate it and fix references to the old one */
4236 new = (struct block
*) xrealloc ((PTR
) b
,
4237 (sizeof (struct block
)
4238 + ((BLOCK_NSYMS (b
) - 1)
4239 * sizeof (struct symbol
*))));
4241 /* Should chase pointers to old one. Fortunately, that`s just
4242 the block`s function and inferior blocks */
4243 if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b
)
4244 SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new;
4245 for (i
= 0; i
< BLOCKVECTOR_NBLOCKS (bv
); i
++)
4246 if (BLOCKVECTOR_BLOCK (bv
, i
) == b
)
4247 BLOCKVECTOR_BLOCK (bv
, i
) = new;
4248 else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv
, i
)) == b
)
4249 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv
, i
)) = new;
4253 /* Create a new symbol with printname NAME */
4255 static struct symbol
*
4259 struct symbol
*s
= ((struct symbol
*)
4260 obstack_alloc (¤t_objfile
->symbol_obstack
,
4261 sizeof (struct symbol
)));
4263 memset ((PTR
) s
, 0, sizeof (*s
));
4264 SYMBOL_NAME (s
) = obsavestring (name
, strlen (name
),
4265 ¤t_objfile
->symbol_obstack
);
4266 SYMBOL_LANGUAGE (s
) = psymtab_language
;
4267 SYMBOL_INIT_DEMANGLED_NAME (s
, ¤t_objfile
->symbol_obstack
);
4271 /* Create a new type with printname NAME */
4273 static struct type
*
4279 t
= alloc_type (current_objfile
);
4280 TYPE_NAME (t
) = name
;
4281 TYPE_CPLUS_SPECIFIC (t
) = (struct cplus_struct_type
*) &cplus_struct_default
;
4285 /* Read ECOFF debugging information from a BFD section. This is
4286 called from elfread.c. It parses the section into a
4287 ecoff_debug_info struct, and then lets the rest of the file handle
4291 elfmdebug_build_psymtabs (objfile
, swap
, sec
, section_offsets
)
4292 struct objfile
*objfile
;
4293 const struct ecoff_debug_swap
*swap
;
4295 struct section_offsets
*section_offsets
;
4297 bfd
*abfd
= objfile
->obfd
;
4298 struct ecoff_debug_info
*info
;
4300 info
= ((struct ecoff_debug_info
*)
4301 obstack_alloc (&objfile
->psymbol_obstack
,
4302 sizeof (struct ecoff_debug_info
)));
4304 if (!(*swap
->read_debug_info
) (abfd
, sec
, info
))
4305 error ("Error reading ECOFF debugging information: %s",
4306 bfd_errmsg (bfd_get_error ()));
4308 mdebug_build_psymtabs (objfile
, swap
, info
, section_offsets
);
4312 /* Things used for calling functions in the inferior.
4313 These functions are exported to our companion
4314 mips-tdep.c file and are here because they play
4315 with the symbol-table explicitly. */
4317 /* Sigtramp: make sure we have all the necessary information
4318 about the signal trampoline code. Since the official code
4319 from MIPS does not do so, we make up that information ourselves.
4320 If they fix the library (unlikely) this code will neutralize itself. */
4322 /* FIXME: This function is called only by mips-tdep.c. It needs to be
4323 here because it calls functions defined in this file, but perhaps
4324 this could be handled in a better way. Only compile it in when
4325 tm-mips.h is included. */
4334 struct block
*b
, *b0
= NULL
;
4336 sigtramp_address
= -1;
4338 /* We have to handle the following cases here:
4339 a) The Mips library has a sigtramp label within sigvec.
4340 b) Irix has a _sigtramp which we want to use, but it also has sigvec. */
4341 s
= lookup_symbol ("sigvec", 0, VAR_NAMESPACE
, 0, NULL
);
4344 b0
= SYMBOL_BLOCK_VALUE (s
);
4345 s
= lookup_symbol ("sigtramp", b0
, VAR_NAMESPACE
, 0, NULL
);
4349 /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */
4350 s
= lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE
, 0, NULL
);
4353 /* But maybe this program uses its own version of sigvec */
4357 /* Did we or MIPSco fix the library ? */
4358 if (SYMBOL_CLASS (s
) == LOC_BLOCK
)
4360 sigtramp_address
= BLOCK_START (SYMBOL_BLOCK_VALUE (s
));
4361 sigtramp_end
= BLOCK_END (SYMBOL_BLOCK_VALUE (s
));
4365 sigtramp_address
= SYMBOL_VALUE (s
);
4366 sigtramp_end
= sigtramp_address
+ 0x88; /* black magic */
4368 /* But what symtab does it live in ? */
4369 st
= find_pc_symtab (SYMBOL_VALUE (s
));
4372 * Ok, there goes the fix: turn it into a procedure, with all the
4373 * needed info. Note we make it a nested procedure of sigvec,
4374 * which is the way the (assembly) code is actually written.
4376 SYMBOL_NAMESPACE (s
) = VAR_NAMESPACE
;
4377 SYMBOL_CLASS (s
) = LOC_BLOCK
;
4378 SYMBOL_TYPE (s
) = init_type (TYPE_CODE_FUNC
, 4, 0, (char *) NULL
,
4380 TYPE_TARGET_TYPE (SYMBOL_TYPE (s
)) = mdebug_type_void
;
4382 /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */
4384 SYMBOL_BLOCK_VALUE (s
) = b
;
4385 BLOCK_START (b
) = sigtramp_address
;
4386 BLOCK_END (b
) = sigtramp_end
;
4387 BLOCK_FUNCTION (b
) = s
;
4388 BLOCK_SUPERBLOCK (b
) = BLOCK_SUPERBLOCK (b0
);
4392 /* Make a MIPS_EFI_SYMBOL_NAME entry for it */
4394 struct mips_extra_func_info
*e
=
4395 ((struct mips_extra_func_info
*)
4396 xzalloc (sizeof (struct mips_extra_func_info
)));
4398 e
->numargs
= 0; /* the kernel thinks otherwise */
4399 e
->pdr
.frameoffset
= 32;
4400 e
->pdr
.framereg
= SP_REGNUM
;
4401 /* Note that setting pcreg is no longer strictly necessary as
4402 mips_frame_saved_pc is now aware of signal handler frames. */
4403 e
->pdr
.pcreg
= PC_REGNUM
;
4404 e
->pdr
.regmask
= -2;
4405 /* Offset to saved r31, in the sigtramp case the saved registers
4406 are above the frame in the sigcontext.
4407 We have 4 alignment bytes, 12 bytes for onstack, mask and pc,
4408 32 * 4 bytes for the general registers, 12 bytes for mdhi, mdlo, ownedfp
4409 and 32 * 4 bytes for the floating point registers. */
4410 e
->pdr
.regoffset
= 4 + 12 + 31 * 4;
4411 e
->pdr
.fregmask
= -1;
4412 /* Offset to saved f30 (first saved *double* register). */
4413 e
->pdr
.fregoffset
= 4 + 12 + 32 * 4 + 12 + 30 * 4;
4414 e
->pdr
.isym
= (long) s
;
4415 e
->pdr
.adr
= sigtramp_address
;
4417 current_objfile
= st
->objfile
; /* Keep new_symbol happy */
4418 s
= new_symbol (MIPS_EFI_SYMBOL_NAME
);
4419 SYMBOL_VALUE (s
) = (long) e
;
4420 SYMBOL_NAMESPACE (s
) = LABEL_NAMESPACE
;
4421 SYMBOL_CLASS (s
) = LOC_CONST
;
4422 SYMBOL_TYPE (s
) = mdebug_type_void
;
4423 current_objfile
= NULL
;
4426 BLOCK_SYM (b
, BLOCK_NSYMS (b
)++) = s
;
4429 #endif /* TM_MIPS_H */
4432 _initialize_mdebugread ()
4435 init_type (TYPE_CODE_VOID
, 1,
4437 "void", (struct objfile
*) NULL
);
4439 init_type (TYPE_CODE_INT
, 1,
4441 "char", (struct objfile
*) NULL
);
4442 mdebug_type_unsigned_char
=
4443 init_type (TYPE_CODE_INT
, 1,
4445 "unsigned char", (struct objfile
*) NULL
);
4447 init_type (TYPE_CODE_INT
, 2,
4449 "short", (struct objfile
*) NULL
);
4450 mdebug_type_unsigned_short
=
4451 init_type (TYPE_CODE_INT
, 2,
4453 "unsigned short", (struct objfile
*) NULL
);
4454 mdebug_type_int_32
=
4455 init_type (TYPE_CODE_INT
, 4,
4457 "int", (struct objfile
*) NULL
);
4458 mdebug_type_unsigned_int_32
=
4459 init_type (TYPE_CODE_INT
, 4,
4461 "unsigned int", (struct objfile
*) NULL
);
4462 mdebug_type_int_64
=
4463 init_type (TYPE_CODE_INT
, 8,
4465 "int", (struct objfile
*) NULL
);
4466 mdebug_type_unsigned_int_64
=
4467 init_type (TYPE_CODE_INT
, 8,
4469 "unsigned int", (struct objfile
*) NULL
);
4470 mdebug_type_long_32
=
4471 init_type (TYPE_CODE_INT
, 4,
4473 "long", (struct objfile
*) NULL
);
4474 mdebug_type_unsigned_long_32
=
4475 init_type (TYPE_CODE_INT
, 4,
4477 "unsigned long", (struct objfile
*) NULL
);
4478 mdebug_type_long_64
=
4479 init_type (TYPE_CODE_INT
, 8,
4481 "long", (struct objfile
*) NULL
);
4482 mdebug_type_unsigned_long_64
=
4483 init_type (TYPE_CODE_INT
, 8,
4485 "unsigned long", (struct objfile
*) NULL
);
4486 mdebug_type_long_long_64
=
4487 init_type (TYPE_CODE_INT
, 8,
4489 "long long", (struct objfile
*) NULL
);
4490 mdebug_type_unsigned_long_long_64
=
4491 init_type (TYPE_CODE_INT
, 8,
4493 "unsigned long long", (struct objfile
*) NULL
);
4494 mdebug_type_adr_32
=
4495 init_type (TYPE_CODE_PTR
, 4,
4497 "adr_32", (struct objfile
*) NULL
);
4498 TYPE_TARGET_TYPE (mdebug_type_adr_32
) = mdebug_type_void
;
4499 mdebug_type_adr_64
=
4500 init_type (TYPE_CODE_PTR
, 8,
4502 "adr_64", (struct objfile
*) NULL
);
4503 TYPE_TARGET_TYPE (mdebug_type_adr_64
) = mdebug_type_void
;
4505 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
4507 "float", (struct objfile
*) NULL
);
4508 mdebug_type_double
=
4509 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4511 "double", (struct objfile
*) NULL
);
4512 mdebug_type_complex
=
4513 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
4515 "complex", (struct objfile
*) NULL
);
4516 TYPE_TARGET_TYPE (mdebug_type_complex
) = mdebug_type_float
;
4517 mdebug_type_double_complex
=
4518 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4520 "double complex", (struct objfile
*) NULL
);
4521 TYPE_TARGET_TYPE (mdebug_type_double_complex
) = mdebug_type_double
;
4523 /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
4525 mdebug_type_string
=
4526 init_type (TYPE_CODE_STRING
,
4527 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
4529 (struct objfile
*) NULL
);
4531 /* We use TYPE_CODE_INT to print these as integers. Does this do any
4532 good? Would we be better off with TYPE_CODE_ERROR? Should
4533 TYPE_CODE_ERROR print things in hex if it knows the size? */
4534 mdebug_type_fixed_dec
=
4535 init_type (TYPE_CODE_INT
,
4536 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4538 (struct objfile
*) NULL
);
4540 mdebug_type_float_dec
=
4541 init_type (TYPE_CODE_ERROR
,
4542 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
4543 0, "floating decimal",
4544 (struct objfile
*) NULL
);
4546 nodebug_func_symbol_type
= init_type (TYPE_CODE_FUNC
, 1, 0,
4547 "<function, no debug info>", NULL
);
4548 TYPE_TARGET_TYPE (nodebug_func_symbol_type
) = mdebug_type_int
;
4549 nodebug_var_symbol_type
=
4550 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ HOST_CHAR_BIT
, 0,
4551 "<variable, no debug info>", NULL
);