1 /* Read a symbol table in ECOFF format (Third-Eye).
3 Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
7 Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
8 CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor
11 This file is part of GDB.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 59 Temple Place - Suite 330,
26 Boston, MA 02111-1307, USA. */
28 /* This module provides the function mdebug_build_psymtabs. It reads
29 ECOFF debugging information into partial symbol tables. The
30 debugging information is read from two structures. A struct
31 ecoff_debug_swap includes the sizes of each ECOFF structure and
32 swapping routines; these are fixed for a particular target. A
33 struct ecoff_debug_info points to the debugging information for a
34 particular object file.
36 ECOFF symbol tables are mostly written in the byte order of the
37 target machine. However, one section of the table (the auxiliary
38 symbol information) is written in the host byte order. There is a
39 bit in the other symbol info which describes which host byte order
40 was used. ECOFF thereby takes the trophy from Intel `b.out' for
41 the most brain-dead adaptation of a file format to byte order.
43 This module can read all four of the known byte-order combinations,
44 on any type of host. */
51 #include "gdb_obstack.h"
53 #include "stabsread.h"
54 #include "complaints.h"
56 #include "gdb_assert.h"
58 #include "dictionary.h"
60 /* These are needed if the tm.h file does not contain the necessary
61 mips specific definitions. */
63 #ifndef MIPS_EFI_SYMBOL_NAME
64 #define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
65 extern void ecoff_relocate_efi (struct symbol *, CORE_ADDR);
67 #include "coff/symconst.h"
68 typedef struct mips_extra_func_info
73 *mips_extra_func_info_t;
80 #include <sys/types.h>
84 #include "gdb_string.h"
88 #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */
90 #include "libaout.h" /* Private BFD a.out information. */
91 #include "aout/aout64.h"
92 #include "aout/stab_gnu.h" /* STABS information */
94 #include "expression.h"
95 #include "language.h" /* For local_hex_string() */
97 extern void _initialize_mdebugread (void);
99 /* Provide a way to test if we have both ECOFF and ELF symbol tables.
100 We use this define in order to know whether we should override a
101 symbol's ECOFF section with its ELF section. This is necessary in
102 case the symbol's ELF section could not be represented in ECOFF. */
103 #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
104 && bfd_get_section_by_name (bfd, ".mdebug") != NULL)
107 /* We put a pointer to this structure in the read_symtab_private field
112 /* Index of the FDR that this psymtab represents. */
114 /* The BFD that the psymtab was created from. */
116 const struct ecoff_debug_swap *debug_swap;
117 struct ecoff_debug_info *debug_info;
118 struct mdebug_pending **pending_list;
119 /* Pointer to external symbols for this file. */
121 /* Size of extern_tab. */
123 enum language pst_language;
126 #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
127 #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
128 #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
129 #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
130 #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
131 #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)
133 #define SC_IS_TEXT(sc) ((sc) == scText \
134 || (sc) == scRConst \
137 #define SC_IS_DATA(sc) ((sc) == scData \
142 #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
143 #define SC_IS_BSS(sc) ((sc) == scBss)
144 #define SC_IS_SBSS(sc) ((sc) == scSBss)
145 #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)
147 /* Various complaints about symbol reading that don't abort the process */
149 index_complaint (const char *arg1)
151 complaint (&symfile_complaints, "bad aux index at symbol %s", arg1);
155 unknown_ext_complaint (const char *arg1)
157 complaint (&symfile_complaints, "unknown external symbol %s", arg1);
161 basic_type_complaint (int arg1, const char *arg2)
163 complaint (&symfile_complaints, "cannot map ECOFF basic type 0x%x for %s",
168 bad_tag_guess_complaint (const char *arg1)
170 complaint (&symfile_complaints, "guessed tag type of %s incorrectly", arg1);
174 bad_rfd_entry_complaint (const char *arg1, int arg2, int arg3)
176 complaint (&symfile_complaints, "bad rfd entry for %s: file %d, index %d",
181 unexpected_type_code_complaint (const char *arg1)
183 complaint (&symfile_complaints, "unexpected type code for %s", arg1);
186 /* Macros and extra defs */
188 /* Puns: hard to find whether -g was used and how */
190 #define MIN_GLEVEL GLEVEL_0
191 #define compare_glevel(a,b) \
192 (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
193 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
195 /* Things that really are local to this module */
197 /* Remember what we deduced to be the source language of this psymtab. */
199 static enum language psymtab_language = language_unknown;
205 /* How to parse debugging information for CUR_BFD. */
207 static const struct ecoff_debug_swap *debug_swap;
209 /* Pointers to debugging information for CUR_BFD. */
211 static struct ecoff_debug_info *debug_info;
213 /* Pointer to current file decriptor record, and its index */
218 /* Index of current symbol */
222 /* Note how much "debuggable" this image is. We would like
223 to see at least one FDR with full symbols */
225 static int max_gdbinfo;
226 static int max_glevel;
228 /* When examining .o files, report on undefined symbols */
230 static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs;
232 /* Pseudo symbol to use when putting stabs into the symbol table. */
234 static char stabs_symbol[] = STABS_SYMBOL;
236 /* Types corresponding to mdebug format bt* basic types. */
238 static struct type *mdebug_type_void;
239 static struct type *mdebug_type_char;
240 static struct type *mdebug_type_short;
241 static struct type *mdebug_type_int_32;
242 #define mdebug_type_int mdebug_type_int_32
243 static struct type *mdebug_type_int_64;
244 static struct type *mdebug_type_long_32;
245 static struct type *mdebug_type_long_64;
246 static struct type *mdebug_type_long_long_64;
247 static struct type *mdebug_type_unsigned_char;
248 static struct type *mdebug_type_unsigned_short;
249 static struct type *mdebug_type_unsigned_int_32;
250 static struct type *mdebug_type_unsigned_int_64;
251 static struct type *mdebug_type_unsigned_long_32;
252 static struct type *mdebug_type_unsigned_long_64;
253 static struct type *mdebug_type_unsigned_long_long_64;
254 static struct type *mdebug_type_adr_32;
255 static struct type *mdebug_type_adr_64;
256 static struct type *mdebug_type_float;
257 static struct type *mdebug_type_double;
258 static struct type *mdebug_type_complex;
259 static struct type *mdebug_type_double_complex;
260 static struct type *mdebug_type_fixed_dec;
261 static struct type *mdebug_type_float_dec;
262 static struct type *mdebug_type_string;
264 /* Types for symbols from files compiled without debugging info. */
266 static struct type *nodebug_func_symbol_type;
267 static struct type *nodebug_var_symbol_type;
269 /* Nonzero if we have seen ecoff debugging info for a file. */
271 static int found_ecoff_debugging_info;
273 /* Forward declarations */
275 static int upgrade_type (int, struct type **, int, union aux_ext *,
278 static void parse_partial_symbols (struct objfile *);
280 static int has_opaque_xref (FDR *, SYMR *);
282 static int cross_ref (int, union aux_ext *, struct type **, enum type_code,
283 char **, int, char *);
285 static struct symbol *new_symbol (char *);
287 static struct type *new_type (char *);
289 enum block_type { FUNCTION_BLOCK, NON_FUNCTION_BLOCK };
291 static struct block *new_block (enum block_type);
293 static struct symtab *new_symtab (char *, int, struct objfile *);
295 static struct linetable *new_linetable (int);
297 static struct blockvector *new_bvect (int);
299 static struct type *parse_type (int, union aux_ext *, unsigned int, int *,
302 static struct symbol *mylookup_symbol (char *, struct block *, domain_enum,
305 static void sort_blocks (struct symtab *);
307 static struct partial_symtab *new_psymtab (char *, struct objfile *);
309 static void psymtab_to_symtab_1 (struct partial_symtab *, char *);
311 static void add_block (struct block *, struct symtab *);
313 static void add_symbol (struct symbol *, struct block *);
315 static int add_line (struct linetable *, int, CORE_ADDR, int);
317 static struct linetable *shrink_linetable (struct linetable *);
319 static void handle_psymbol_enumerators (struct objfile *, FDR *, int,
322 static char *mdebug_next_symbol_text (struct objfile *);
324 /* Address bounds for the signal trampoline in inferior, if any */
326 CORE_ADDR sigtramp_address, sigtramp_end;
328 /* Allocate zeroed memory */
331 xzalloc (unsigned int size)
333 void *p = xmalloc (size);
339 /* Exported procedure: Builds a symtab from the PST partial one.
340 Restores the environment in effect when PST was created, delegates
341 most of the work to an ancillary procedure, and sorts
342 and reorders the symtab list at the end */
345 mdebug_psymtab_to_symtab (struct partial_symtab *pst)
353 printf_filtered ("Reading in symbols for %s...", pst->filename);
354 gdb_flush (gdb_stdout);
357 next_symbol_text_func = mdebug_next_symbol_text;
359 psymtab_to_symtab_1 (pst, pst->filename);
361 /* Match with global symbols. This only needs to be done once,
362 after all of the symtabs and dependencies have been read in. */
363 scan_file_globals (pst->objfile);
366 printf_filtered ("done.\n");
369 /* File-level interface functions */
371 /* Find a file descriptor given its index RF relative to a file CF */
374 get_rfd (int cf, int rf)
380 fdrs = debug_info->fdr;
382 /* Object files do not have the RFD table, all refs are absolute */
385 (*debug_swap->swap_rfd_in) (cur_bfd,
386 ((char *) debug_info->external_rfd
388 * debug_swap->external_rfd_size)),
393 /* Return a safer print NAME for a file descriptor */
399 return "<stripped file>";
402 return debug_info->ss + f->issBase + f->rss;
406 /* Read in and parse the symtab of the file OBJFILE. Symbols from
407 different sections are relocated via the SECTION_OFFSETS. */
410 mdebug_build_psymtabs (struct objfile *objfile,
411 const struct ecoff_debug_swap *swap,
412 struct ecoff_debug_info *info)
414 cur_bfd = objfile->obfd;
418 stabsread_new_init ();
419 buildsym_new_init ();
420 free_header_files ();
421 init_header_files ();
423 /* Make sure all the FDR information is swapped in. */
424 if (info->fdr == (FDR *) NULL)
430 info->fdr = (FDR *) obstack_alloc (&objfile->objfile_obstack,
431 (info->symbolic_header.ifdMax
433 fdr_src = info->external_fdr;
435 + info->symbolic_header.ifdMax * swap->external_fdr_size);
437 for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++)
438 (*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr);
441 parse_partial_symbols (objfile);
444 /* Check to make sure file was compiled with -g. If not, warn the
445 user of this limitation. */
446 if (compare_glevel (max_glevel, GLEVEL_2) < 0)
448 if (max_gdbinfo == 0)
449 printf_unfiltered ("\n%s not compiled with -g, debugging support is limited.\n",
451 printf_unfiltered ("You should compile with -g2 or -g3 for best debugging support.\n");
452 gdb_flush (gdb_stdout);
457 /* Local utilities */
459 /* Map of FDR indexes to partial symtabs */
463 struct partial_symtab *pst; /* the psymtab proper */
464 long n_globals; /* exported globals (external symbols) */
465 long globals_offset; /* cumulative */
469 /* Utility stack, used to nest procedures and blocks properly.
470 It is a doubly linked list, to avoid too many alloc/free.
471 Since we might need it quite a few times it is NOT deallocated
474 static struct parse_stack
476 struct parse_stack *next, *prev;
477 struct symtab *cur_st; /* Current symtab. */
478 struct block *cur_block; /* Block in it. */
480 /* What are we parsing. stFile, or stBlock are for files and
481 blocks. stProc or stStaticProc means we have seen the start of a
482 procedure, but not the start of the block within in. When we see
483 the start of that block, we change it to stNil, without pushing a
484 new block, i.e. stNil means both a procedure and a block. */
488 struct type *cur_type; /* Type we parse fields for. */
489 int cur_field; /* Field number in cur_type. */
490 CORE_ADDR procadr; /* Start addres of this procedure */
491 int numargs; /* Its argument count */
494 *top_stack; /* Top stack ptr */
497 /* Enter a new lexical context */
500 push_parse_stack (void)
502 struct parse_stack *new;
504 /* Reuse frames if possible */
505 if (top_stack && top_stack->prev)
506 new = top_stack->prev;
508 new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack));
509 /* Initialize new frame with previous content */
512 struct parse_stack *prev = new->prev;
515 top_stack->prev = new;
517 new->next = top_stack;
522 /* Exit a lexical context */
525 pop_parse_stack (void)
530 top_stack = top_stack->next;
534 /* Cross-references might be to things we haven't looked at
535 yet, e.g. type references. To avoid too many type
536 duplications we keep a quick fixup table, an array
537 of lists of references indexed by file descriptor */
539 struct mdebug_pending
541 struct mdebug_pending *next; /* link */
542 char *s; /* the unswapped symbol */
543 struct type *t; /* its partial type descriptor */
547 /* The pending information is kept for an entire object file, and used
548 to be in the sym_private field. I took it out when I split
549 mdebugread from mipsread, because this might not be the only type
550 of symbols read from an object file. Instead, we allocate the
551 pending information table when we create the partial symbols, and
552 we store a pointer to the single table in each psymtab. */
554 static struct mdebug_pending **pending_list;
556 /* Check whether we already saw symbol SH in file FH */
558 static struct mdebug_pending *
559 is_pending_symbol (FDR *fh, char *sh)
561 int f_idx = fh - debug_info->fdr;
562 struct mdebug_pending *p;
564 /* Linear search is ok, list is typically no more than 10 deep */
565 for (p = pending_list[f_idx]; p; p = p->next)
571 /* Add a new symbol SH of type T */
574 add_pending (FDR *fh, char *sh, struct type *t)
576 int f_idx = fh - debug_info->fdr;
577 struct mdebug_pending *p = is_pending_symbol (fh, sh);
579 /* Make sure we do not make duplicates */
582 p = ((struct mdebug_pending *)
583 obstack_alloc (¤t_objfile->objfile_obstack,
584 sizeof (struct mdebug_pending)));
587 p->next = pending_list[f_idx];
588 pending_list[f_idx] = p;
593 /* Parsing Routines proper. */
595 /* Parse a single symbol. Mostly just make up a GDB symbol for it.
596 For blocks, procedures and types we open a new lexical context.
597 This is basically just a big switch on the symbol's type. Argument
598 AX is the base pointer of aux symbols for this file (fh->iauxBase).
599 EXT_SH points to the unswapped symbol, which is needed for struct,
600 union, etc., types; it is NULL for an EXTR. BIGEND says whether
601 aux symbols are big-endian or little-endian. Return count of
602 SYMR's handled (normally one). */
605 parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
606 struct section_offsets *section_offsets, struct objfile *objfile)
608 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
609 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
613 struct mdebug_pending *pend;
617 enum address_class class;
619 long svalue = sh->value;
622 if (ext_sh == (char *) NULL)
623 name = debug_info->ssext + sh->iss;
625 name = debug_info->ss + cur_fdr->issBase + sh->iss;
631 /* Do not relocate relative values.
632 The value of a stEnd symbol is the displacement from the
633 corresponding start symbol value.
634 The value of a stBlock symbol is the displacement from the
635 procedure address. */
636 if (sh->st != stEnd && sh->st != stBlock)
637 sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
644 sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
648 sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
657 case stGlobal: /* external symbol, goes into global block */
659 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
661 s = new_symbol (name);
662 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
665 case stStatic: /* static data, goes into current block. */
667 b = top_stack->cur_block;
668 s = new_symbol (name);
669 if (SC_IS_COMMON (sh->sc))
671 /* It is a FORTRAN common block. At least for SGI Fortran the
672 address is not in the symbol; we need to fix it later in
673 scan_file_globals. */
674 int bucket = hashname (DEPRECATED_SYMBOL_NAME (s));
675 SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket];
676 global_sym_chain[bucket] = s;
679 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
682 case stLocal: /* local variable, goes into current block */
683 if (sh->sc == scRegister)
685 class = LOC_REGISTER;
686 svalue = ECOFF_REG_TO_REGNUM (svalue);
690 b = top_stack->cur_block;
691 s = new_symbol (name);
692 SYMBOL_VALUE (s) = svalue;
694 data: /* Common code for symbols describing data */
695 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
696 SYMBOL_CLASS (s) = class;
699 /* Type could be missing if file is compiled without debugging info. */
700 if (SC_IS_UNDEF (sh->sc)
701 || sh->sc == scNil || sh->index == indexNil)
702 SYMBOL_TYPE (s) = nodebug_var_symbol_type;
704 SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
705 /* Value of a data symbol is its memory address */
708 case stParam: /* arg to procedure, goes into current block */
710 found_ecoff_debugging_info = 1;
711 top_stack->numargs++;
713 /* Special GNU C++ name. */
714 if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0)
715 name = "this"; /* FIXME, not alloc'd in obstack */
716 s = new_symbol (name);
718 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
722 /* Pass by value in register. */
723 SYMBOL_CLASS (s) = LOC_REGPARM;
724 svalue = ECOFF_REG_TO_REGNUM (svalue);
727 /* Pass by reference on stack. */
728 SYMBOL_CLASS (s) = LOC_REF_ARG;
731 /* Pass by reference in register. */
732 SYMBOL_CLASS (s) = LOC_REGPARM_ADDR;
733 svalue = ECOFF_REG_TO_REGNUM (svalue);
736 /* Pass by value on stack. */
737 SYMBOL_CLASS (s) = LOC_ARG;
740 SYMBOL_VALUE (s) = svalue;
741 SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
742 add_symbol (s, top_stack->cur_block);
745 case stLabel: /* label, goes into current block */
746 s = new_symbol (name);
747 SYMBOL_DOMAIN (s) = VAR_DOMAIN; /* so that it can be used */
748 SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused */
749 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
750 SYMBOL_TYPE (s) = mdebug_type_int;
751 add_symbol (s, top_stack->cur_block);
754 case stProc: /* Procedure, usually goes into global block */
755 case stStaticProc: /* Static procedure, goes into current block */
756 /* For stProc symbol records, we need to check the storage class
757 as well, as only (stProc, scText) entries represent "real"
758 procedures - See the Compaq document titled "Object File /
759 Symbol Table Format Specification" for more information.
760 If the storage class is not scText, we discard the whole block
761 of symbol records for this stProc. */
762 if (sh->st == stProc && sh->sc != scText)
764 char *ext_tsym = ext_sh;
765 int keep_counting = 1;
768 while (keep_counting)
770 ext_tsym += external_sym_size;
771 (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);
781 complaint (&symfile_complaints,
782 "unknown symbol type 0x%x", sh->st);
788 s = new_symbol (name);
789 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
790 SYMBOL_CLASS (s) = LOC_BLOCK;
791 /* Type of the return value */
792 if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
796 t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name);
797 if (strcmp (name, "malloc") == 0
798 && TYPE_CODE (t) == TYPE_CODE_VOID)
800 /* I don't know why, but, at least under Alpha GNU/Linux,
801 when linking against a malloc without debugging
802 symbols, its read as a function returning void---this
803 is bad because it means we cannot call functions with
804 string arguments interactively; i.e., "call
805 printf("howdy\n")" would fail with the error message
806 "program has no memory available". To avoid this, we
807 patch up the type and make it void*
808 instead. (davidm@azstarnet.com)
810 t = make_pointer_type (t, NULL);
813 b = top_stack->cur_block;
814 if (sh->st == stProc)
816 struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
817 /* The next test should normally be true, but provides a
818 hook for nested functions (which we don't want to make
820 if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK))
821 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
822 /* Irix 5 sometimes has duplicate names for the same
823 function. We want to add such names up at the global
824 level, not as a nested function. */
825 else if (sh->value == top_stack->procadr)
826 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
830 /* Make a type for the procedure itself */
831 SYMBOL_TYPE (s) = lookup_function_type (t);
833 /* All functions in C++ have prototypes. For C we don't have enough
834 information in the debug info. */
835 if (SYMBOL_LANGUAGE (s) == language_cplus)
836 TYPE_FLAGS (SYMBOL_TYPE (s)) |= TYPE_FLAG_PROTOTYPED;
838 /* Create and enter a new lexical context */
839 b = new_block (FUNCTION_BLOCK);
840 SYMBOL_BLOCK_VALUE (s) = b;
841 BLOCK_FUNCTION (b) = s;
842 BLOCK_START (b) = BLOCK_END (b) = sh->value;
843 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
844 add_block (b, top_stack->cur_st);
846 /* Not if we only have partial info */
847 if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
851 top_stack->cur_block = b;
852 top_stack->blocktype = sh->st;
853 top_stack->cur_type = SYMBOL_TYPE (s);
854 top_stack->cur_field = -1;
855 top_stack->procadr = sh->value;
856 top_stack->numargs = 0;
859 /* Beginning of code for structure, union, and enum definitions.
860 They all share a common set of local variables, defined here. */
862 enum type_code type_code;
868 case stStruct: /* Start a block defining a struct type */
869 type_code = TYPE_CODE_STRUCT;
870 goto structured_common;
872 case stUnion: /* Start a block defining a union type */
873 type_code = TYPE_CODE_UNION;
874 goto structured_common;
876 case stEnum: /* Start a block defining an enum type */
877 type_code = TYPE_CODE_ENUM;
878 goto structured_common;
880 case stBlock: /* Either a lexical block, or some type */
881 if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc))
882 goto case_stBlock_code; /* Lexical block */
884 type_code = TYPE_CODE_UNDEF; /* We have a type. */
886 /* Common code for handling struct, union, enum, and/or as-yet-
887 unknown-type blocks of info about structured data. `type_code'
888 has been set to the proper TYPE_CODE, if we know it. */
890 found_ecoff_debugging_info = 1;
892 top_stack->blocktype = stBlock;
894 /* First count the number of fields and the highest value. */
897 for (ext_tsym = ext_sh + external_sym_size;
899 ext_tsym += external_sym_size)
903 (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);
908 /* C++ encodes class types as structures where there the
909 methods are encoded as stProc. The scope of stProc
910 symbols also ends with stEnd, thus creating a risk of
911 taking the wrong stEnd symbol record as the end of
912 the current struct, which would cause GDB to undercount
913 the real number of fields in this struct. To make sure
914 we really reached the right stEnd symbol record, we
915 check the associated name, and match it against the
916 struct name. Since method names are mangled while
917 the class name is not, there is no risk of having a
918 method whose name is identical to the class name
919 (in particular constructor method names are different
920 from the class name). There is therefore no risk that
921 this check stops the count on the StEnd of a method.
923 Also, assume that we're really at the end when tsym.iss
925 if (tsym.iss == issNull
926 || strcmp (debug_info->ss + cur_fdr->issBase + tsym.iss,
932 if (nfields == 0 && type_code == TYPE_CODE_UNDEF)
934 /* If the type of the member is Nil (or Void),
935 without qualifiers, assume the tag is an
937 Alpha cc -migrate enums are recognized by a zero
938 index and a zero symbol value.
939 DU 4.0 cc enums are recognized by a member type of
940 btEnum without qualifiers and a zero symbol value. */
941 if (tsym.index == indexNil
942 || (tsym.index == 0 && sh->value == 0))
943 type_code = TYPE_CODE_ENUM;
946 (*debug_swap->swap_tir_in) (bigend,
947 &ax[tsym.index].a_ti,
949 if ((tir.bt == btNil || tir.bt == btVoid
950 || (tir.bt == btEnum && sh->value == 0))
952 type_code = TYPE_CODE_ENUM;
956 if (tsym.value > max_value)
957 max_value = tsym.value;
966 /* This is a no-op; is it trying to tell us something
967 we should be checking? */
968 if (tsym.sc == scVariant); /*UNIMPLEMENTED */
972 /* This is something like a struct within a
973 struct. Skip over the fields of the inner
974 struct. The -1 is because the for loop will
975 increment ext_tsym. */
976 ext_tsym = ((char *) debug_info->external_sym
977 + ((cur_fdr->isymBase + tsym.index - 1)
978 * external_sym_size));
984 /* mips cc puts out a typedef for struct x if it is not yet
985 defined when it encounters
986 struct y { struct x *xp; };
991 /* Irix5 cc puts out a stIndirect for struct x if it is not
992 yet defined when it encounters
993 struct y { struct x *xp; };
998 complaint (&symfile_complaints,
999 "declaration block contains unhandled symbol type %d",
1005 /* In an stBlock, there is no way to distinguish structs,
1006 unions, and enums at this point. This is a bug in the
1007 original design (that has been fixed with the recent
1008 addition of the stStruct, stUnion, and stEnum symbol
1009 types.) The way you can tell is if/when you see a variable
1010 or field of that type. In that case the variable's type
1011 (in the AUX table) says if the type is struct, union, or
1012 enum, and points back to the stBlock here. So you can
1013 patch the tag kind up later - but only if there actually is
1014 a variable or field of that type.
1016 So until we know for sure, we will guess at this point.
1018 If the first member has index==indexNil or a void type,
1019 assume we have an enumeration.
1020 Otherwise, if there is more than one member, and all
1021 the members have offset 0, assume we have a union.
1022 Otherwise, assume we have a struct.
1024 The heuristic could guess wrong in the case of of an
1025 enumeration with no members or a union with one (or zero)
1026 members, or when all except the last field of a struct have
1027 width zero. These are uncommon and/or illegal situations,
1028 and in any case guessing wrong probably doesn't matter
1031 But if we later do find out we were wrong, we fixup the tag
1032 kind. Members of an enumeration must be handled
1033 differently from struct/union fields, and that is harder to
1034 patch up, but luckily we shouldn't need to. (If there are
1035 any enumeration members, we can tell for sure it's an enum
1038 if (type_code == TYPE_CODE_UNDEF)
1040 if (nfields > 1 && max_value == 0)
1041 type_code = TYPE_CODE_UNION;
1043 type_code = TYPE_CODE_STRUCT;
1046 /* Create a new type or use the pending type. */
1047 pend = is_pending_symbol (cur_fdr, ext_sh);
1048 if (pend == (struct mdebug_pending *) NULL)
1050 t = new_type (NULL);
1051 add_pending (cur_fdr, ext_sh, t);
1056 /* Do not set the tag name if it is a compiler generated tag name
1057 (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
1058 Alpha cc puts out an sh->iss of zero for those. */
1059 if (sh->iss == 0 || name[0] == '.' || name[0] == '\0')
1060 TYPE_TAG_NAME (t) = NULL;
1062 TYPE_TAG_NAME (t) = obconcat (¤t_objfile->objfile_obstack,
1065 TYPE_CODE (t) = type_code;
1066 TYPE_LENGTH (t) = sh->value;
1067 TYPE_NFIELDS (t) = nfields;
1068 TYPE_FIELDS (t) = f = ((struct field *)
1070 nfields * sizeof (struct field)));
1072 if (type_code == TYPE_CODE_ENUM)
1074 int unsigned_enum = 1;
1076 /* This is a non-empty enum. */
1078 /* DEC c89 has the number of enumerators in the sh.value field,
1079 not the type length, so we have to compensate for that
1080 incompatibility quirk.
1081 This might do the wrong thing for an enum with one or two
1082 enumerators and gcc -gcoff -fshort-enums, but these cases
1083 are hopefully rare enough.
1084 Alpha cc -migrate has a sh.value field of zero, we adjust
1086 if (TYPE_LENGTH (t) == TYPE_NFIELDS (t)
1087 || TYPE_LENGTH (t) == 0)
1088 TYPE_LENGTH (t) = TARGET_INT_BIT / HOST_CHAR_BIT;
1089 for (ext_tsym = ext_sh + external_sym_size;
1091 ext_tsym += external_sym_size)
1094 struct symbol *enum_sym;
1096 (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);
1098 if (tsym.st != stMember)
1101 FIELD_BITPOS (*f) = tsym.value;
1102 FIELD_TYPE (*f) = t;
1103 FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss;
1104 FIELD_BITSIZE (*f) = 0;
1105 FIELD_STATIC_KIND (*f) = 0;
1107 enum_sym = ((struct symbol *)
1108 obstack_alloc (¤t_objfile->objfile_obstack,
1109 sizeof (struct symbol)));
1110 memset (enum_sym, 0, sizeof (struct symbol));
1111 DEPRECATED_SYMBOL_NAME (enum_sym) =
1112 obsavestring (f->name, strlen (f->name),
1113 ¤t_objfile->objfile_obstack);
1114 SYMBOL_CLASS (enum_sym) = LOC_CONST;
1115 SYMBOL_TYPE (enum_sym) = t;
1116 SYMBOL_DOMAIN (enum_sym) = VAR_DOMAIN;
1117 SYMBOL_VALUE (enum_sym) = tsym.value;
1118 if (SYMBOL_VALUE (enum_sym) < 0)
1120 add_symbol (enum_sym, top_stack->cur_block);
1122 /* Skip the stMembers that we've handled. */
1127 TYPE_FLAGS (t) |= TYPE_FLAG_UNSIGNED;
1129 /* make this the current type */
1130 top_stack->cur_type = t;
1131 top_stack->cur_field = 0;
1133 /* Do not create a symbol for alpha cc unnamed structs. */
1137 /* gcc puts out an empty struct for an opaque struct definitions,
1138 do not create a symbol for it either. */
1139 if (TYPE_NFIELDS (t) == 0)
1141 TYPE_FLAGS (t) |= TYPE_FLAG_STUB;
1145 s = new_symbol (name);
1146 SYMBOL_DOMAIN (s) = STRUCT_DOMAIN;
1147 SYMBOL_CLASS (s) = LOC_TYPEDEF;
1148 SYMBOL_VALUE (s) = 0;
1149 SYMBOL_TYPE (s) = t;
1150 add_symbol (s, top_stack->cur_block);
1153 /* End of local variables shared by struct, union, enum, and
1154 block (as yet unknown struct/union/enum) processing. */
1158 found_ecoff_debugging_info = 1;
1159 /* beginnning of (code) block. Value of symbol
1160 is the displacement from procedure start */
1161 push_parse_stack ();
1163 /* Do not start a new block if this is the outermost block of a
1164 procedure. This allows the LOC_BLOCK symbol to point to the
1165 block with the local variables, so funcname::var works. */
1166 if (top_stack->blocktype == stProc
1167 || top_stack->blocktype == stStaticProc)
1169 top_stack->blocktype = stNil;
1173 top_stack->blocktype = stBlock;
1174 b = new_block (NON_FUNCTION_BLOCK);
1175 BLOCK_START (b) = sh->value + top_stack->procadr;
1176 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
1177 top_stack->cur_block = b;
1178 add_block (b, top_stack->cur_st);
1181 case stEnd: /* end (of anything) */
1182 if (sh->sc == scInfo || SC_IS_COMMON (sh->sc))
1184 /* Finished with type */
1185 top_stack->cur_type = 0;
1187 else if (sh->sc == scText &&
1188 (top_stack->blocktype == stProc ||
1189 top_stack->blocktype == stStaticProc))
1191 /* Finished with procedure */
1192 struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
1193 struct mips_extra_func_info *e;
1194 struct block *b = top_stack->cur_block;
1195 struct type *ftype = top_stack->cur_type;
1198 BLOCK_END (top_stack->cur_block) += sh->value; /* size */
1200 /* Make up special symbol to contain procedure specific info */
1201 s = new_symbol (MIPS_EFI_SYMBOL_NAME);
1202 SYMBOL_DOMAIN (s) = LABEL_DOMAIN;
1203 SYMBOL_CLASS (s) = LOC_CONST;
1204 SYMBOL_TYPE (s) = mdebug_type_void;
1205 e = ((struct mips_extra_func_info *)
1206 obstack_alloc (¤t_objfile->objfile_obstack,
1207 sizeof (struct mips_extra_func_info)));
1208 memset (e, 0, sizeof (struct mips_extra_func_info));
1209 SYMBOL_VALUE (s) = (long) e;
1210 e->numargs = top_stack->numargs;
1211 e->pdr.framereg = -1;
1212 add_symbol (s, top_stack->cur_block);
1214 /* f77 emits proc-level with address bounds==[0,0],
1215 So look for such child blocks, and patch them. */
1216 for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
1218 struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i);
1219 if (BLOCK_SUPERBLOCK (b_bad) == b
1220 && BLOCK_START (b_bad) == top_stack->procadr
1221 && BLOCK_END (b_bad) == top_stack->procadr)
1223 BLOCK_START (b_bad) = BLOCK_START (b);
1224 BLOCK_END (b_bad) = BLOCK_END (b);
1228 if (TYPE_NFIELDS (ftype) <= 0)
1230 /* No parameter type information is recorded with the function's
1231 type. Set that from the type of the parameter symbols. */
1232 int nparams = top_stack->numargs;
1238 struct dict_iterator iter;
1239 TYPE_NFIELDS (ftype) = nparams;
1240 TYPE_FIELDS (ftype) = (struct field *)
1241 TYPE_ALLOC (ftype, nparams * sizeof (struct field));
1244 ALL_BLOCK_SYMBOLS (b, iter, sym)
1246 if (iparams == nparams)
1249 switch (SYMBOL_CLASS (sym))
1254 case LOC_REGPARM_ADDR:
1255 TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym);
1256 TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0;
1266 else if (sh->sc == scText && top_stack->blocktype == stBlock)
1268 /* End of (code) block. The value of the symbol is the
1269 displacement from the procedure`s start address of the
1270 end of this block. */
1271 BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr;
1273 else if (sh->sc == scText && top_stack->blocktype == stNil)
1275 /* End of outermost block. Pop parse stack and ignore. The
1276 following stEnd of stProc will take care of the block. */
1279 else if (sh->sc == scText && top_stack->blocktype == stFile)
1281 /* End of file. Pop parse stack and ignore. Higher
1282 level code deals with this. */
1286 complaint (&symfile_complaints,
1287 "stEnd with storage class %d not handled", sh->sc);
1289 pop_parse_stack (); /* restore previous lexical context */
1292 case stMember: /* member of struct or union */
1293 f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++];
1294 FIELD_NAME (*f) = name;
1295 FIELD_BITPOS (*f) = sh->value;
1297 FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, &bitsize, bigend, name);
1298 FIELD_BITSIZE (*f) = bitsize;
1299 FIELD_STATIC_KIND (*f) = 0;
1302 case stIndirect: /* forward declaration on Irix5 */
1303 /* Forward declarations from Irix5 cc are handled by cross_ref,
1307 case stTypedef: /* type definition */
1308 found_ecoff_debugging_info = 1;
1310 /* Typedefs for forward declarations and opaque structs from alpha cc
1311 are handled by cross_ref, skip them. */
1315 /* Parse the type or use the pending type. */
1316 pend = is_pending_symbol (cur_fdr, ext_sh);
1317 if (pend == (struct mdebug_pending *) NULL)
1319 t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name);
1320 add_pending (cur_fdr, ext_sh, t);
1325 /* mips cc puts out a typedef with the name of the struct for forward
1326 declarations. These should not go into the symbol table and
1327 TYPE_NAME should not be set for them.
1328 They can't be distinguished from an intentional typedef to
1329 the same name however:
1331 struct x { int ix; int jx; };
1335 struct xx {int ixx; int jxx; };
1336 generates a cross referencing stTypedef for x and xx.
1337 The user visible effect of this is that the type of a pointer
1338 to struct foo sometimes is given as `foo *' instead of `struct foo *'.
1339 The problem is fixed with alpha cc and Irix5 cc. */
1341 /* However if the typedef cross references to an opaque aggregate, it
1342 is safe to omit it from the symbol table. */
1344 if (has_opaque_xref (cur_fdr, sh))
1346 s = new_symbol (name);
1347 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
1348 SYMBOL_CLASS (s) = LOC_TYPEDEF;
1349 SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block;
1350 SYMBOL_TYPE (s) = t;
1351 add_symbol (s, top_stack->cur_block);
1353 /* Incomplete definitions of structs should not get a name. */
1354 if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL
1355 && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0
1356 || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT
1357 && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION)))
1359 if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR
1360 || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC)
1362 /* If we are giving a name to a type such as "pointer to
1363 foo" or "function returning foo", we better not set
1364 the TYPE_NAME. If the program contains "typedef char
1365 *caddr_t;", we don't want all variables of type char
1366 * to print as caddr_t. This is not just a
1367 consequence of GDB's type management; CC and GCC (at
1368 least through version 2.4) both output variables of
1369 either type char * or caddr_t with the type
1370 refering to the stTypedef symbol for caddr_t. If a future
1371 compiler cleans this up it GDB is not ready for it
1372 yet, but if it becomes ready we somehow need to
1373 disable this check (without breaking the PCC/GCC2.4
1378 Fortunately, this check seems not to be necessary
1379 for anything except pointers or functions. */
1382 TYPE_NAME (SYMBOL_TYPE (s)) = DEPRECATED_SYMBOL_NAME (s);
1386 case stFile: /* file name */
1387 push_parse_stack ();
1388 top_stack->blocktype = sh->st;
1391 /* I`ve never seen these for C */
1393 break; /* register relocation */
1395 break; /* forwarding address */
1397 break; /* constant */
1399 complaint (&symfile_complaints, "unknown symbol type 0x%x", sh->st);
1406 /* Parse the type information provided in the raw AX entries for
1407 the symbol SH. Return the bitfield size in BS, in case.
1408 We must byte-swap the AX entries before we use them; BIGEND says whether
1409 they are big-endian or little-endian (from fh->fBigendian). */
1411 static struct type *
1412 parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs,
1413 int bigend, char *sym_name)
1415 /* Null entries in this map are treated specially */
1416 static struct type **map_bt[] =
1418 &mdebug_type_void, /* btNil */
1419 &mdebug_type_adr_32, /* btAdr */
1420 &mdebug_type_char, /* btChar */
1421 &mdebug_type_unsigned_char, /* btUChar */
1422 &mdebug_type_short, /* btShort */
1423 &mdebug_type_unsigned_short, /* btUShort */
1424 &mdebug_type_int_32, /* btInt */
1425 &mdebug_type_unsigned_int_32, /* btUInt */
1426 &mdebug_type_long_32, /* btLong */
1427 &mdebug_type_unsigned_long_32, /* btULong */
1428 &mdebug_type_float, /* btFloat */
1429 &mdebug_type_double, /* btDouble */
1436 &mdebug_type_complex, /* btComplex */
1437 &mdebug_type_double_complex, /* btDComplex */
1439 &mdebug_type_fixed_dec, /* btFixedDec */
1440 &mdebug_type_float_dec, /* btFloatDec */
1441 &mdebug_type_string, /* btString */
1444 &mdebug_type_void, /* btVoid */
1445 0, /* DEC C++: Pointer to member */
1446 0, /* DEC C++: Virtual function table */
1447 0, /* DEC C++: Class (Record) */
1448 &mdebug_type_long_64, /* btLong64 */
1449 &mdebug_type_unsigned_long_64, /* btULong64 */
1450 &mdebug_type_long_long_64, /* btLongLong64 */
1451 &mdebug_type_unsigned_long_long_64, /* btULongLong64 */
1452 &mdebug_type_adr_64, /* btAdr64 */
1453 &mdebug_type_int_64, /* btInt64 */
1454 &mdebug_type_unsigned_int_64, /* btUInt64 */
1458 struct type *tp = 0;
1459 enum type_code type_code = TYPE_CODE_UNDEF;
1461 /* Handle undefined types, they have indexNil. */
1462 if (aux_index == indexNil)
1463 return mdebug_type_int;
1465 /* Handle corrupt aux indices. */
1466 if (aux_index >= (debug_info->fdr + fd)->caux)
1468 index_complaint (sym_name);
1469 return mdebug_type_int;
1473 /* Use aux as a type information record, map its basic type. */
1474 (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
1475 if (t->bt >= (sizeof (map_bt) / sizeof (*map_bt)))
1477 basic_type_complaint (t->bt, sym_name);
1478 return mdebug_type_int;
1482 tp = *map_bt[t->bt];
1487 /* Cannot use builtin types -- build our own */
1491 type_code = TYPE_CODE_STRUCT;
1494 type_code = TYPE_CODE_UNION;
1497 type_code = TYPE_CODE_ENUM;
1500 type_code = TYPE_CODE_RANGE;
1503 type_code = TYPE_CODE_SET;
1506 /* alpha cc -migrate uses this for typedefs. The true type will
1507 be obtained by crossreferencing below. */
1508 type_code = TYPE_CODE_ERROR;
1511 /* alpha cc uses this for typedefs. The true type will be
1512 obtained by crossreferencing below. */
1513 type_code = TYPE_CODE_ERROR;
1516 basic_type_complaint (t->bt, sym_name);
1517 return mdebug_type_int;
1521 /* Move on to next aux */
1526 int width = AUX_GET_WIDTH (bigend, ax);
1527 /* Inhibit core dumps if TIR is corrupted. */
1528 if (bs == (int *) NULL)
1530 /* Alpha cc -migrate encodes char and unsigned char types
1531 as short and unsigned short types with a field width of 8.
1532 Enum types also have a field width which we ignore for now. */
1533 if (t->bt == btShort && width == 8)
1534 tp = mdebug_type_char;
1535 else if (t->bt == btUShort && width == 8)
1536 tp = mdebug_type_unsigned_char;
1537 else if (t->bt == btEnum)
1540 complaint (&symfile_complaints, "can't handle TIR fBitfield for %s",
1548 /* A btIndirect entry cross references to an aux entry containing
1550 if (t->bt == btIndirect)
1557 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);
1559 if (rn->rfd == 0xfff)
1561 rf = AUX_GET_ISYM (bigend, ax);
1569 complaint (&symfile_complaints,
1570 "unable to cross ref btIndirect for %s", sym_name);
1571 return mdebug_type_int;
1573 xref_fh = get_rfd (fd, rf);
1574 xref_fd = xref_fh - debug_info->fdr;
1575 tp = parse_type (xref_fd, debug_info->external_aux + xref_fh->iauxBase,
1576 rn->index, (int *) NULL, xref_fh->fBigendian, sym_name);
1579 /* All these types really point to some (common) MIPS type
1580 definition, and only the type-qualifiers fully identify
1581 them. We'll make the same effort at sharing. */
1582 if (t->bt == btStruct ||
1586 /* btSet (I think) implies that the name is a tag name, not a typedef
1587 name. This apparently is a MIPS extension for C sets. */
1592 /* Try to cross reference this type, build new type on failure. */
1593 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1594 if (tp == (struct type *) NULL)
1595 tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
1597 /* DEC c89 produces cross references to qualified aggregate types,
1598 dereference them. */
1599 while (TYPE_CODE (tp) == TYPE_CODE_PTR
1600 || TYPE_CODE (tp) == TYPE_CODE_ARRAY)
1601 tp = TYPE_TARGET_TYPE (tp);
1603 /* Make sure that TYPE_CODE(tp) has an expected type code.
1604 Any type may be returned from cross_ref if file indirect entries
1606 if (TYPE_CODE (tp) != TYPE_CODE_STRUCT
1607 && TYPE_CODE (tp) != TYPE_CODE_UNION
1608 && TYPE_CODE (tp) != TYPE_CODE_ENUM)
1610 unexpected_type_code_complaint (sym_name);
1615 /* Usually, TYPE_CODE(tp) is already type_code. The main
1616 exception is if we guessed wrong re struct/union/enum.
1617 But for struct vs. union a wrong guess is harmless, so
1618 don't complain(). */
1619 if ((TYPE_CODE (tp) == TYPE_CODE_ENUM
1620 && type_code != TYPE_CODE_ENUM)
1621 || (TYPE_CODE (tp) != TYPE_CODE_ENUM
1622 && type_code == TYPE_CODE_ENUM))
1624 bad_tag_guess_complaint (sym_name);
1627 if (TYPE_CODE (tp) != type_code)
1629 TYPE_CODE (tp) = type_code;
1632 /* Do not set the tag name if it is a compiler generated tag name
1633 (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */
1634 if (name[0] == '.' || name[0] == '\0')
1635 TYPE_TAG_NAME (tp) = NULL;
1636 else if (TYPE_TAG_NAME (tp) == NULL
1637 || strcmp (TYPE_TAG_NAME (tp), name) != 0)
1638 TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name),
1639 ¤t_objfile->objfile_obstack);
1643 /* All these types really point to some (common) MIPS type
1644 definition, and only the type-qualifiers fully identify
1645 them. We'll make the same effort at sharing.
1646 FIXME: We are not doing any guessing on range types. */
1647 if (t->bt == btRange)
1651 /* Try to cross reference this type, build new type on failure. */
1652 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1653 if (tp == (struct type *) NULL)
1654 tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
1656 /* Make sure that TYPE_CODE(tp) has an expected type code.
1657 Any type may be returned from cross_ref if file indirect entries
1659 if (TYPE_CODE (tp) != TYPE_CODE_RANGE)
1661 unexpected_type_code_complaint (sym_name);
1665 /* Usually, TYPE_CODE(tp) is already type_code. The main
1666 exception is if we guessed wrong re struct/union/enum. */
1667 if (TYPE_CODE (tp) != type_code)
1669 bad_tag_guess_complaint (sym_name);
1670 TYPE_CODE (tp) = type_code;
1672 if (TYPE_NAME (tp) == NULL
1673 || strcmp (TYPE_NAME (tp), name) != 0)
1674 TYPE_NAME (tp) = obsavestring (name, strlen (name),
1675 ¤t_objfile->objfile_obstack);
1678 if (t->bt == btTypedef)
1682 /* Try to cross reference this type, it should succeed. */
1683 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1684 if (tp == (struct type *) NULL)
1686 complaint (&symfile_complaints,
1687 "unable to cross ref btTypedef for %s", sym_name);
1688 tp = mdebug_type_int;
1692 /* Deal with range types */
1693 if (t->bt == btRange)
1695 TYPE_NFIELDS (tp) = 2;
1696 TYPE_FIELDS (tp) = ((struct field *)
1697 TYPE_ALLOC (tp, 2 * sizeof (struct field)));
1698 TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"),
1699 ¤t_objfile->objfile_obstack);
1700 TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax);
1702 TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"),
1703 ¤t_objfile->objfile_obstack);
1704 TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax);
1708 /* Parse all the type qualifiers now. If there are more
1709 than 6 the game will continue in the next aux */
1713 #define PARSE_TQ(tq) \
1714 if (t->tq != tqNil) \
1715 ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
1727 /* mips cc 2.x and gcc never put out continued aux entries. */
1731 (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
1735 /* Complain for illegal continuations due to corrupt aux entries. */
1737 complaint (&symfile_complaints, "illegal TIR continued for %s", sym_name);
1742 /* Make up a complex type from a basic one. Type is passed by
1743 reference in TPP and side-effected as necessary. The type
1744 qualifier TQ says how to handle the aux symbols at AX for
1745 the symbol SX we are currently analyzing. BIGEND says whether
1746 aux symbols are big-endian or little-endian.
1747 Returns the number of aux symbols we parsed. */
1750 upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend,
1756 /* Used in array processing */
1767 t = lookup_pointer_type (*tpp);
1772 t = lookup_function_type (*tpp);
1779 /* Determine and record the domain type (type of index) */
1780 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx);
1786 rf = AUX_GET_ISYM (bigend, ax);
1789 fh = get_rfd (fd, rf);
1791 indx = parse_type (fh - debug_info->fdr,
1792 debug_info->external_aux + fh->iauxBase,
1793 id, (int *) NULL, bigend, sym_name);
1795 /* The bounds type should be an integer type, but might be anything
1796 else due to corrupt aux entries. */
1797 if (TYPE_CODE (indx) != TYPE_CODE_INT)
1799 complaint (&symfile_complaints,
1800 "illegal array index type for %s, assuming int", sym_name);
1801 indx = mdebug_type_int;
1804 /* Get the bounds, and create the array type. */
1806 lower = AUX_GET_DNLOW (bigend, ax);
1808 upper = AUX_GET_DNHIGH (bigend, ax);
1810 rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */
1812 range = create_range_type ((struct type *) NULL, indx,
1815 t = create_array_type ((struct type *) NULL, *tpp, range);
1817 /* We used to fill in the supplied array element bitsize
1818 here if the TYPE_LENGTH of the target type was zero.
1819 This happens for a `pointer to an array of anonymous structs',
1820 but in this case the array element bitsize is also zero,
1821 so nothing is gained.
1822 And we used to check the TYPE_LENGTH of the target type against
1823 the supplied array element bitsize.
1824 gcc causes a mismatch for `pointer to array of object',
1825 since the sdb directives it uses do not have a way of
1826 specifying the bitsize, but it does no harm (the
1827 TYPE_LENGTH should be correct) and we should be able to
1828 ignore the erroneous bitsize from the auxiliary entry safely.
1829 dbx seems to ignore it too. */
1831 /* TYPE_FLAG_TARGET_STUB now takes care of the zero TYPE_LENGTH
1833 if (TYPE_LENGTH (*tpp) == 0)
1835 TYPE_FLAGS (t) |= TYPE_FLAG_TARGET_STUB;
1842 /* Volatile -- currently ignored */
1846 /* Const -- currently ignored */
1850 complaint (&symfile_complaints, "unknown type qualifier 0x%x", tq);
1856 /* Parse a procedure descriptor record PR. Note that the procedure is
1857 parsed _after_ the local symbols, now we just insert the extra
1858 information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
1859 already been placed in the procedure's main block. Note also that
1860 images that have been partially stripped (ld -x) have been deprived
1861 of local symbols, and we have to cope with them here. FIRST_OFF is
1862 the offset of the first procedure for this FDR; we adjust the
1863 address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab
1864 to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
1865 in question, or NULL to use top_stack->cur_block. */
1867 static void parse_procedure (PDR *, struct symtab *, struct partial_symtab *);
1870 parse_procedure (PDR *pr, struct symtab *search_symtab,
1871 struct partial_symtab *pst)
1873 struct symbol *s, *i;
1875 struct mips_extra_func_info *e;
1878 /* Simple rule to find files linked "-x" */
1879 if (cur_fdr->rss == -1)
1883 /* Static procedure at address pr->adr. Sigh. */
1884 /* FIXME-32x64. assuming pr->adr fits in long. */
1885 complaint (&symfile_complaints,
1886 "can't handle PDR for static proc at 0x%lx",
1887 (unsigned long) pr->adr);
1895 (*debug_swap->swap_ext_in) (cur_bfd,
1896 ((char *) debug_info->external_ext
1898 * debug_swap->external_ext_size)),
1900 sh_name = debug_info->ssext + she.asym.iss;
1908 (*debug_swap->swap_sym_in) (cur_bfd,
1909 ((char *) debug_info->external_sym
1910 + ((cur_fdr->isymBase + pr->isym)
1911 * debug_swap->external_sym_size)),
1913 sh_name = debug_info->ss + cur_fdr->issBase + sh.iss;
1916 if (search_symtab != NULL)
1919 /* This loses both in the case mentioned (want a static, find a global),
1920 but also if we are looking up a non-mangled name which happens to
1921 match the name of a mangled function. */
1922 /* We have to save the cur_fdr across the call to lookup_symbol.
1923 If the pdr is for a static function and if a global function with
1924 the same name exists, lookup_symbol will eventually read in the symtab
1925 for the global function and clobber cur_fdr. */
1926 FDR *save_cur_fdr = cur_fdr;
1927 s = lookup_symbol (sh_name, NULL, VAR_DOMAIN, 0, NULL);
1928 cur_fdr = save_cur_fdr;
1932 BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK),
1938 s = mylookup_symbol (sh_name, top_stack->cur_block,
1939 VAR_DOMAIN, LOC_BLOCK);
1943 b = SYMBOL_BLOCK_VALUE (s);
1947 complaint (&symfile_complaints, "PDR for %s, but no symbol", sh_name);
1951 /* FIXME -- delete. We can't do symbol allocation now; it's all done. */
1952 s = new_symbol (sh_name);
1953 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
1954 SYMBOL_CLASS (s) = LOC_BLOCK;
1955 /* Donno its type, hope int is ok */
1956 SYMBOL_TYPE (s) = lookup_function_type (mdebug_type_int);
1957 add_symbol (s, top_stack->cur_block);
1958 /* Wont have symbols for this one */
1960 SYMBOL_BLOCK_VALUE (s) = b;
1961 BLOCK_FUNCTION (b) = s;
1962 BLOCK_START (b) = pr->adr;
1963 /* BOUND used to be the end of procedure's text, but the
1964 argument is no longer passed in. */
1965 BLOCK_END (b) = bound;
1966 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
1967 add_block (b, top_stack->cur_st);
1971 i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_DOMAIN, LOC_CONST);
1975 e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
1977 e->pdr.isym = (long) s;
1979 /* GDB expects the absolute function start address for the
1980 procedure descriptor in e->pdr.adr.
1981 As the address in the procedure descriptor is usually relative,
1982 we would have to relocate e->pdr.adr with cur_fdr->adr and
1983 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)).
1984 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
1985 in shared libraries on some systems, and on other systems
1986 e->pdr.adr is sometimes offset by a bogus value.
1987 To work around these problems, we replace e->pdr.adr with
1988 the start address of the function. */
1989 e->pdr.adr = BLOCK_START (b);
1991 /* Correct incorrect setjmp procedure descriptor from the library
1992 to make backtrace through setjmp work. */
1993 if (e->pdr.pcreg == 0
1994 && strcmp (sh_name, "setjmp") == 0)
1996 complaint (&symfile_complaints, "fixing bad setjmp PDR from libc");
1997 e->pdr.pcreg = RA_REGNUM;
1998 e->pdr.regmask = 0x80000000;
1999 e->pdr.regoffset = -4;
2003 /* It would be reasonable that functions that have been compiled
2004 without debugging info have a btNil type for their return value,
2005 and functions that are void and are compiled with debugging info
2007 gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
2008 to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
2010 The glevel field in cur_fdr could be used to determine the presence
2011 of debugging info, but GCC doesn't always pass the -g switch settings
2012 to the assembler and GAS doesn't set the glevel field from the -g switch
2014 To work around these problems, the return value type of a TYPE_CODE_VOID
2015 function is adjusted accordingly if no debugging info was found in the
2016 compilation unit. */
2018 if (processing_gcc_compilation == 0
2019 && found_ecoff_debugging_info == 0
2020 && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID)
2021 SYMBOL_TYPE (s) = nodebug_func_symbol_type;
2024 /* Relocate the extra function info pointed to by the symbol table. */
2027 ecoff_relocate_efi (struct symbol *sym, CORE_ADDR delta)
2029 struct mips_extra_func_info *e;
2031 e = (struct mips_extra_func_info *) SYMBOL_VALUE (sym);
2033 e->pdr.adr += delta;
2036 /* Parse the external symbol ES. Just call parse_symbol() after
2037 making sure we know where the aux are for it.
2038 BIGEND says whether aux entries are big-endian or little-endian.
2040 This routine clobbers top_stack->cur_block and ->cur_st. */
2042 static void parse_external (EXTR *, int, struct section_offsets *,
2046 parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets,
2047 struct objfile *objfile)
2051 if (es->ifd != ifdNil)
2054 cur_fdr = debug_info->fdr + cur_fd;
2055 ax = debug_info->external_aux + cur_fdr->iauxBase;
2059 cur_fdr = debug_info->fdr;
2063 /* Reading .o files */
2064 if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil)
2067 switch (es->asym.st)
2070 /* These are generated for static symbols in .o files,
2091 /* FIXME: Turn this into a complaint? */
2093 printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
2094 what, debug_info->ssext + es->asym.iss,
2095 fdr_name (cur_fdr));
2099 switch (es->asym.st)
2103 /* There is no need to parse the external procedure symbols.
2104 If they are from objects compiled without -g, their index will
2105 be indexNil, and the symbol definition from the minimal symbol
2106 is preferrable (yielding a function returning int instead of int).
2107 If the index points to a local procedure symbol, the local
2108 symbol already provides the correct type.
2109 Note that the index of the external procedure symbol points
2110 to the local procedure symbol in the local symbol table, and
2111 _not_ to the auxiliary symbol info. */
2115 /* Global common symbols are resolved by the runtime loader,
2117 if (SC_IS_COMMON (es->asym.sc))
2120 /* Note that the case of a symbol with indexNil must be handled
2121 anyways by parse_symbol(). */
2122 parse_symbol (&es->asym, ax, (char *) NULL, bigend, section_offsets, objfile);
2129 /* Parse the line number info for file descriptor FH into
2130 GDB's linetable LT. MIPS' encoding requires a little bit
2131 of magic to get things out. Note also that MIPS' line
2132 numbers can go back and forth, apparently we can live
2133 with that and do not need to reorder our linetables */
2135 static void parse_lines (FDR *, PDR *, struct linetable *, int,
2136 struct partial_symtab *, CORE_ADDR);
2139 parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines,
2140 struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr)
2142 unsigned char *base;
2144 int delta, count, lineno = 0;
2146 if (fh->cbLine == 0)
2149 /* Scan by procedure descriptors */
2151 for (j = 0; j < fh->cpd; j++, pr++)
2155 unsigned char *halt;
2157 /* No code for this one */
2158 if (pr->iline == ilineNil ||
2159 pr->lnLow == -1 || pr->lnHigh == -1)
2162 /* Determine start and end address of compressed line bytes for
2164 base = debug_info->line + fh->cbLineOffset;
2165 if (j != (fh->cpd - 1))
2166 halt = base + pr[1].cbLineOffset;
2168 halt = base + fh->cbLine;
2169 base += pr->cbLineOffset;
2171 adr = pst->textlow + pr->adr - lowest_pdr_addr;
2173 l = adr >> 2; /* in words */
2174 for (lineno = pr->lnLow; base < halt;)
2176 count = *base & 0x0f;
2177 delta = *base++ >> 4;
2182 delta = (base[0] << 8) | base[1];
2183 if (delta >= 0x8000)
2187 lineno += delta; /* first delta is 0 */
2189 /* Complain if the line table overflows. Could happen
2190 with corrupt binaries. */
2191 if (lt->nitems >= maxlines)
2193 complaint (&symfile_complaints,
2194 "guessed size of linetable for %s incorrectly",
2198 k = add_line (lt, lineno, l, k);
2205 function_outside_compilation_unit_complaint (const char *arg1)
2207 complaint (&symfile_complaints,
2208 "function `%s' appears to be defined outside of all compilation units",
2212 /* Master parsing procedure for first-pass reading of file symbols
2213 into a partial_symtab. */
2216 parse_partial_symbols (struct objfile *objfile)
2218 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
2219 const bfd_size_type external_rfd_size = debug_swap->external_rfd_size;
2220 const bfd_size_type external_ext_size = debug_swap->external_ext_size;
2221 void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in;
2222 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
2223 void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in;
2225 HDRR *hdr = &debug_info->symbolic_header;
2226 /* Running pointers */
2234 struct partial_symtab *pst;
2235 int textlow_not_set = 1;
2236 int past_first_source_file = 0;
2238 /* List of current psymtab's include files */
2239 char **psymtab_include_list;
2240 int includes_allocated;
2243 struct pst_map *fdr_to_pst;
2244 /* Index within current psymtab dependency list */
2245 struct partial_symtab **dependency_list;
2246 int dependencies_used, dependencies_allocated;
2247 struct cleanup *old_chain;
2249 enum language prev_language;
2250 asection *text_sect;
2251 int relocatable = 0;
2253 /* Irix 5.2 shared libraries have a fh->adr field of zero, but
2254 the shared libraries are prelinked at a high memory address.
2255 We have to adjust the start address of the object file for this case,
2256 by setting it to the start address of the first procedure in the file.
2257 But we should do no adjustments if we are debugging a .o file, where
2258 the text section (and fh->adr) really starts at zero. */
2259 text_sect = bfd_get_section_by_name (cur_bfd, ".text");
2260 if (text_sect != NULL
2261 && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC))
2264 extern_tab = (EXTR *) obstack_alloc (&objfile->objfile_obstack,
2265 sizeof (EXTR) * hdr->iextMax);
2267 includes_allocated = 30;
2269 psymtab_include_list = (char **) alloca (includes_allocated *
2271 next_symbol_text_func = mdebug_next_symbol_text;
2273 dependencies_allocated = 30;
2274 dependencies_used = 0;
2276 (struct partial_symtab **) alloca (dependencies_allocated *
2277 sizeof (struct partial_symtab *));
2279 last_source_file = NULL;
2284 * Only parse the Local and External symbols, and the Relative FDR.
2285 * Fixup enough of the loader symtab to be able to use it.
2286 * Allocate space only for the file's portions we need to
2291 max_glevel = MIN_GLEVEL;
2293 /* Allocate the map FDR -> PST.
2294 Minor hack: -O3 images might claim some global data belongs
2295 to FDR -1. We`ll go along with that */
2296 fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst);
2297 old_chain = make_cleanup (xfree, fdr_to_pst);
2300 struct partial_symtab *pst = new_psymtab ("", objfile);
2301 fdr_to_pst[-1].pst = pst;
2305 /* Allocate the global pending list. */
2307 ((struct mdebug_pending **)
2308 obstack_alloc (&objfile->objfile_obstack,
2309 hdr->ifdMax * sizeof (struct mdebug_pending *)));
2310 memset (pending_list, 0,
2311 hdr->ifdMax * sizeof (struct mdebug_pending *));
2313 /* Pass 0 over external syms: swap them in. */
2314 ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR));
2315 make_cleanup (xfree, ext_block);
2317 ext_out = (char *) debug_info->external_ext;
2318 ext_out_end = ext_out + hdr->iextMax * external_ext_size;
2320 for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++)
2321 (*swap_ext_in) (cur_bfd, ext_out, ext_in);
2323 /* Pass 1 over external syms: Presize and partition the list */
2325 ext_in_end = ext_in + hdr->iextMax;
2326 for (; ext_in < ext_in_end; ext_in++)
2328 /* See calls to complain below. */
2329 if (ext_in->ifd >= -1
2330 && ext_in->ifd < hdr->ifdMax
2331 && ext_in->asym.iss >= 0
2332 && ext_in->asym.iss < hdr->issExtMax)
2333 fdr_to_pst[ext_in->ifd].n_globals++;
2336 /* Pass 1.5 over files: partition out global symbol space */
2338 for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++)
2340 fdr_to_pst[f_idx].globals_offset = s_idx;
2341 s_idx += fdr_to_pst[f_idx].n_globals;
2342 fdr_to_pst[f_idx].n_globals = 0;
2347 For ECOFF in ELF, we skip the creation of the minimal symbols.
2348 The ECOFF symbols should be a subset of the Elf symbols, and the
2349 section information of the elf symbols will be more accurate.
2350 FIXME! What about Irix 5's native linker?
2352 By default, Elf sections which don't exist in ECOFF
2353 get put in ECOFF's absolute section by the gnu linker.
2354 Since absolute sections don't get relocated, we
2355 end up calculating an address different from that of
2356 the symbol's minimal symbol (created earlier from the
2359 To fix this, either :
2360 1) don't create the duplicate symbol
2361 (assumes ECOFF symtab is a subset of the ELF symtab;
2362 assumes no side-effects result from ignoring ECOFF symbol)
2363 2) create it, only if lookup for existing symbol in ELF's minimal
2366 assumes no side-effects result from ignoring ECOFF symbol)
2367 3) create it, but lookup ELF's minimal symbol and use it's section
2368 during relocation, then modify "uniqify" phase to merge and
2369 eliminate the duplicate symbol
2370 (highly inefficient)
2372 I've implemented #1 here...
2373 Skip the creation of the minimal symbols based on the ECOFF
2376 /* Pass 2 over external syms: fill in external symbols */
2378 ext_in_end = ext_in + hdr->iextMax;
2379 for (; ext_in < ext_in_end; ext_in++)
2381 enum minimal_symbol_type ms_type = mst_text;
2382 CORE_ADDR svalue = ext_in->asym.value;
2384 /* The Irix 5 native tools seem to sometimes generate bogus
2385 external symbols. */
2386 if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax)
2388 complaint (&symfile_complaints,
2389 "bad ifd for external symbol: %d (max %ld)", ext_in->ifd,
2393 if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax)
2395 complaint (&symfile_complaints,
2396 "bad iss for external symbol: %ld (max %ld)",
2397 ext_in->asym.iss, hdr->issExtMax);
2401 extern_tab[fdr_to_pst[ext_in->ifd].globals_offset
2402 + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in;
2405 if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil)
2409 /* Pass 3 over files, over local syms: fill in static symbols */
2410 name = debug_info->ssext + ext_in->asym.iss;
2412 /* Process ECOFF Symbol Types and Storage Classes */
2413 switch (ext_in->asym.st)
2416 /* Beginnning of Procedure */
2417 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2420 /* Load time only static procs */
2421 ms_type = mst_file_text;
2422 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2425 /* External symbol */
2426 if (SC_IS_COMMON (ext_in->asym.sc))
2428 /* The value of a common symbol is its size, not its address.
2432 else if (SC_IS_DATA (ext_in->asym.sc))
2435 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2437 else if (SC_IS_BSS (ext_in->asym.sc))
2440 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2442 else if (SC_IS_SBSS (ext_in->asym.sc))
2445 svalue += ANOFFSET (objfile->section_offsets,
2446 get_section_index (objfile, ".sbss"));
2454 /* On certain platforms, some extra label symbols can be
2455 generated by the linker. One possible usage for this kind
2456 of symbols is to represent the address of the begining of a
2457 given section. For instance, on Tru64 5.1, the address of
2458 the _ftext label is the start address of the .text section.
2460 The storage class of these symbols is usually directly
2461 related to the section to which the symbol refers. For
2462 instance, on Tru64 5.1, the storage class for the _fdata
2463 label is scData, refering to the .data section.
2465 It is actually possible that the section associated to the
2466 storage class of the label does not exist. On True64 5.1
2467 for instance, the libm.so shared library does not contain
2468 any .data section, although it contains a _fpdata label
2469 which storage class is scData... Since these symbols are
2470 usually useless for the debugger user anyway, we just
2471 discard these symbols.
2474 if (SC_IS_TEXT (ext_in->asym.sc))
2476 if (objfile->sect_index_text == -1)
2479 ms_type = mst_file_text;
2480 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2482 else if (SC_IS_DATA (ext_in->asym.sc))
2484 if (objfile->sect_index_data == -1)
2487 ms_type = mst_file_data;
2488 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2490 else if (SC_IS_BSS (ext_in->asym.sc))
2492 if (objfile->sect_index_bss == -1)
2495 ms_type = mst_file_bss;
2496 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2498 else if (SC_IS_SBSS (ext_in->asym.sc))
2500 const int sbss_sect_index = get_section_index (objfile, ".sbss");
2502 if (sbss_sect_index == -1)
2505 ms_type = mst_file_bss;
2506 svalue += ANOFFSET (objfile->section_offsets, sbss_sect_index);
2513 /* The alpha has the section start addresses in stLocal symbols
2514 whose name starts with a `.'. Skip those but complain for all
2515 other stLocal symbols.
2516 Irix6 puts the section start addresses in stNil symbols, skip
2522 ms_type = mst_unknown;
2523 unknown_ext_complaint (name);
2525 if (!ECOFF_IN_ELF (cur_bfd))
2526 prim_record_minimal_symbol (name, svalue, ms_type, objfile);
2529 /* Pass 3 over files, over local syms: fill in static symbols */
2530 for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
2532 struct partial_symtab *save_pst;
2536 cur_fdr = fh = debug_info->fdr + f_idx;
2540 fdr_to_pst[f_idx].pst = NULL;
2544 /* Determine the start address for this object file from the
2545 file header and relocate it, except for Irix 5.2 zero fh->adr. */
2549 if (relocatable || textlow != 0)
2550 textlow += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2554 pst = start_psymtab_common (objfile, objfile->section_offsets,
2557 objfile->global_psymbols.next,
2558 objfile->static_psymbols.next);
2559 pst->read_symtab_private = ((char *)
2560 obstack_alloc (&objfile->objfile_obstack,
2561 sizeof (struct symloc)));
2562 memset (pst->read_symtab_private, 0, sizeof (struct symloc));
2565 FDR_IDX (pst) = f_idx;
2566 CUR_BFD (pst) = cur_bfd;
2567 DEBUG_SWAP (pst) = debug_swap;
2568 DEBUG_INFO (pst) = debug_info;
2569 PENDING_LIST (pst) = pending_list;
2571 /* The way to turn this into a symtab is to call... */
2572 pst->read_symtab = mdebug_psymtab_to_symtab;
2574 /* Set up language for the pst.
2575 The language from the FDR is used if it is unambigious (e.g. cfront
2576 with native cc and g++ will set the language to C).
2577 Otherwise we have to deduce the language from the filename.
2578 Native ecoff has every header file in a separate FDR, so
2579 deduce_language_from_filename will return language_unknown for
2580 a header file, which is not what we want.
2581 But the FDRs for the header files are after the FDR for the source
2582 file, so we can assign the language of the source file to the
2583 following header files. Then we save the language in the private
2584 pst data so that we can reuse it when building symtabs. */
2585 prev_language = psymtab_language;
2589 case langCplusplusV2:
2590 psymtab_language = language_cplus;
2593 psymtab_language = deduce_language_from_filename (fdr_name (fh));
2596 if (psymtab_language == language_unknown)
2597 psymtab_language = prev_language;
2598 PST_PRIVATE (pst)->pst_language = psymtab_language;
2600 pst->texthigh = pst->textlow;
2602 /* For stabs-in-ecoff files, the second symbol must be @stab.
2603 This symbol is emitted by mips-tfile to signal that the
2604 current object file uses encapsulated stabs instead of mips
2605 ecoff for local symbols. (It is the second symbol because
2606 the first symbol is the stFile used to signal the start of a
2608 processing_gcc_compilation = 0;
2611 (*swap_sym_in) (cur_bfd,
2612 ((char *) debug_info->external_sym
2613 + (fh->isymBase + 1) * external_sym_size),
2615 if (strcmp (debug_info->ss + fh->issBase + sh.iss,
2617 processing_gcc_compilation = 2;
2620 if (processing_gcc_compilation != 0)
2622 for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
2627 (*swap_sym_in) (cur_bfd,
2628 (((char *) debug_info->external_sym)
2629 + (fh->isymBase + cur_sdx) * external_sym_size),
2631 type_code = ECOFF_UNMARK_STAB (sh.index);
2632 if (!ECOFF_IS_STAB (&sh))
2634 if (sh.st == stProc || sh.st == stStaticProc)
2639 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2640 if (sh.st == stStaticProc)
2642 namestring = debug_info->ss + fh->issBase + sh.iss;
2643 prim_record_minimal_symbol_and_info (namestring,
2647 SECT_OFF_TEXT (objfile),
2651 procaddr = sh.value;
2653 isym = AUX_GET_ISYM (fh->fBigendian,
2654 (debug_info->external_aux
2657 (*swap_sym_in) (cur_bfd,
2658 ((char *) debug_info->external_sym
2659 + ((fh->isymBase + isym - 1)
2660 * external_sym_size)),
2664 CORE_ADDR high = procaddr + sh.value;
2666 /* Kludge for Irix 5.2 zero fh->adr. */
2668 && (pst->textlow == 0 || procaddr < pst->textlow))
2669 pst->textlow = procaddr;
2670 if (high > pst->texthigh)
2671 pst->texthigh = high;
2674 else if (sh.st == stStatic)
2689 namestring = debug_info->ss + fh->issBase + sh.iss;
2690 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2691 prim_record_minimal_symbol_and_info (namestring,
2695 SECT_OFF_DATA (objfile),
2701 /* FIXME! Shouldn't this use cases for bss,
2702 then have the default be abs? */
2703 namestring = debug_info->ss + fh->issBase + sh.iss;
2704 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2705 prim_record_minimal_symbol_and_info (namestring,
2709 SECT_OFF_BSS (objfile),
2717 /* Handle stabs continuation */
2719 char *stabstring = debug_info->ss + fh->issBase + sh.iss;
2720 int len = strlen (stabstring);
2721 while (stabstring[len - 1] == '\\')
2724 char *stabstring1 = stabstring;
2728 /* Ignore continuation char from 1st string */
2731 /* Read next stabstring */
2733 (*swap_sym_in) (cur_bfd,
2734 (((char *) debug_info->external_sym)
2735 + (fh->isymBase + cur_sdx)
2736 * external_sym_size),
2738 stabstring2 = debug_info->ss + fh->issBase + sh2.iss;
2739 len2 = strlen (stabstring2);
2741 /* Concatinate stabstring2 with stabstring1 */
2743 && stabstring != debug_info->ss + fh->issBase + sh.iss)
2744 stabstring = xrealloc (stabstring, len + len2 + 1);
2747 stabstring = xmalloc (len + len2 + 1);
2748 strcpy (stabstring, stabstring1);
2750 strcpy (stabstring + len, stabstring2);
2758 * Standard, external, non-debugger, symbols
2761 case N_TEXT | N_EXT:
2762 case N_NBTEXT | N_EXT:
2763 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2766 case N_DATA | N_EXT:
2767 case N_NBDATA | N_EXT:
2768 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2773 case N_NBBSS | N_EXT:
2774 case N_SETV | N_EXT: /* FIXME, is this in BSS? */
2775 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2782 /* Standard, local, non-debugger, symbols */
2786 /* We need to be able to deal with both N_FN or N_TEXT,
2787 because we have no way of knowing whether the sys-supplied ld
2788 or GNU ld was used to make the executable. Sequents throw
2789 in another wrinkle -- they renumbered N_FN. */
2797 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2800 case N_UNDF | N_EXT:
2801 continue; /* Just undefined, not COMMON */
2806 /* Lots of symbol types we can just ignore. */
2813 /* Keep going . . . */
2816 * Special symbol types for GNU
2819 case N_INDR | N_EXT:
2821 case N_SETA | N_EXT:
2823 case N_SETT | N_EXT:
2825 case N_SETD | N_EXT:
2827 case N_SETB | N_EXT:
2838 static int prev_so_symnum = -10;
2839 static int first_so_symnum;
2841 int prev_textlow_not_set;
2843 valu = sh.value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2845 prev_textlow_not_set = textlow_not_set;
2847 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
2848 /* A zero value is probably an indication for the SunPRO 3.0
2849 compiler. end_psymtab explicitly tests for zero, so
2850 don't relocate it. */
2854 textlow_not_set = 1;
2858 textlow_not_set = 0;
2860 textlow_not_set = 0;
2862 past_first_source_file = 1;
2864 if (prev_so_symnum != symnum - 1)
2865 { /* Here if prev stab wasn't N_SO */
2866 first_so_symnum = symnum;
2870 pst = (struct partial_symtab *) 0;
2872 dependencies_used = 0;
2876 prev_so_symnum = symnum;
2878 /* End the current partial symtab and start a new one */
2880 /* SET_NAMESTRING ();*/
2881 namestring = stabstring;
2883 /* Null name means end of .o file. Don't start a new one. */
2884 if (*namestring == '\000')
2887 /* Some compilers (including gcc) emit a pair of initial N_SOs.
2888 The first one is a directory name; the second the file name.
2889 If pst exists, is empty, and has a filename ending in '/',
2890 we assume the previous N_SO was a directory name. */
2892 p = strrchr (namestring, '/');
2893 if (p && *(p + 1) == '\000')
2894 continue; /* Simply ignore directory name SOs */
2896 /* Some other compilers (C++ ones in particular) emit useless
2897 SOs for non-existant .c files. We ignore all subsequent SOs that
2898 immediately follow the first. */
2910 enum language tmp_language;
2911 /* Mark down an include file in the current psymtab */
2913 /* SET_NAMESTRING ();*/
2914 namestring = stabstring;
2916 tmp_language = deduce_language_from_filename (namestring);
2918 /* Only change the psymtab's language if we've learned
2919 something useful (eg. tmp_language is not language_unknown).
2920 In addition, to match what start_subfile does, never change
2922 if (tmp_language != language_unknown
2923 && (tmp_language != language_c
2924 || psymtab_language != language_cplus))
2925 psymtab_language = tmp_language;
2927 /* In C++, one may expect the same filename to come round many
2928 times, when code is coming alternately from the main file
2929 and from inline functions in other files. So I check to see
2930 if this is a file we've seen before -- either the main
2931 source file, or a previously included file.
2933 This seems to be a lot of time to be spending on N_SOL, but
2934 things like "break c-exp.y:435" need to work (I
2935 suppose the psymtab_include_list could be hashed or put
2936 in a binary tree, if profiling shows this is a major hog). */
2937 if (pst && strcmp (namestring, pst->filename) == 0)
2941 for (i = 0; i < includes_used; i++)
2942 if (strcmp (namestring,
2943 psymtab_include_list[i]) == 0)
2952 psymtab_include_list[includes_used++] = namestring;
2953 if (includes_used >= includes_allocated)
2955 char **orig = psymtab_include_list;
2957 psymtab_include_list = (char **)
2958 alloca ((includes_allocated *= 2) *
2960 memcpy (psymtab_include_list, orig,
2961 includes_used * sizeof (char *));
2965 case N_LSYM: /* Typedef or automatic variable. */
2966 case N_STSYM: /* Data seg var -- static */
2967 case N_LCSYM: /* BSS " */
2968 case N_ROSYM: /* Read-only data seg var -- static. */
2969 case N_NBSTS: /* Gould nobase. */
2970 case N_NBLCS: /* symbols. */
2972 case N_GSYM: /* Global (extern) variable; can be
2973 data or bss (sigh FIXME). */
2975 /* Following may probably be ignored; I'll leave them here
2976 for now (until I do Pascal and Modula 2 extensions). */
2978 case N_PC: /* I may or may not need this; I
2980 case N_M2C: /* I suspect that I can ignore this here. */
2981 case N_SCOPE: /* Same. */
2983 /* SET_NAMESTRING ();*/
2984 namestring = stabstring;
2985 p = (char *) strchr (namestring, ':');
2987 continue; /* Not a debugging symbol. */
2991 /* Main processing section for debugging symbols which
2992 the initial read through the symbol tables needs to worry
2993 about. If we reach this point, the symbol which we are
2994 considering is definitely one we are interested in.
2995 p must also contain the (valid) index into the namestring
2996 which indicates the debugging type symbol. */
3001 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3002 #ifdef STATIC_TRANSFORM_NAME
3003 namestring = STATIC_TRANSFORM_NAME (namestring);
3005 add_psymbol_to_list (namestring, p - namestring,
3006 VAR_DOMAIN, LOC_STATIC,
3007 &objfile->static_psymbols,
3009 psymtab_language, objfile);
3012 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3013 /* The addresses in these entries are reported to be
3014 wrong. See the code that reads 'G's for symtabs. */
3015 add_psymbol_to_list (namestring, p - namestring,
3016 VAR_DOMAIN, LOC_STATIC,
3017 &objfile->global_psymbols,
3019 psymtab_language, objfile);
3023 /* When a 'T' entry is defining an anonymous enum, it
3024 may have a name which is the empty string, or a
3025 single space. Since they're not really defining a
3026 symbol, those shouldn't go in the partial symbol
3027 table. We do pick up the elements of such enums at
3028 'check_enum:', below. */
3029 if (p >= namestring + 2
3030 || (p == namestring + 1
3031 && namestring[0] != ' '))
3033 add_psymbol_to_list (namestring, p - namestring,
3034 STRUCT_DOMAIN, LOC_TYPEDEF,
3035 &objfile->static_psymbols,
3037 psymtab_language, objfile);
3040 /* Also a typedef with the same name. */
3041 add_psymbol_to_list (namestring, p - namestring,
3042 VAR_DOMAIN, LOC_TYPEDEF,
3043 &objfile->static_psymbols,
3045 psymtab_language, objfile);
3051 if (p != namestring) /* a name is there, not just :T... */
3053 add_psymbol_to_list (namestring, p - namestring,
3054 VAR_DOMAIN, LOC_TYPEDEF,
3055 &objfile->static_psymbols,
3057 psymtab_language, objfile);
3060 /* If this is an enumerated type, we need to
3061 add all the enum constants to the partial symbol
3062 table. This does not cover enums without names, e.g.
3063 "enum {a, b} c;" in C, but fortunately those are
3064 rare. There is no way for GDB to find those from the
3065 enum type without spending too much time on it. Thus
3066 to solve this problem, the compiler needs to put out the
3067 enum in a nameless type. GCC2 does this. */
3069 /* We are looking for something of the form
3070 <name> ":" ("t" | "T") [<number> "="] "e"
3071 {<constant> ":" <value> ","} ";". */
3073 /* Skip over the colon and the 't' or 'T'. */
3075 /* This type may be given a number. Also, numbers can come
3076 in pairs like (0,26). Skip over it. */
3077 while ((*p >= '0' && *p <= '9')
3078 || *p == '(' || *p == ',' || *p == ')'
3084 /* The aix4 compiler emits extra crud before the members. */
3087 /* Skip over the type (?). */
3091 /* Skip over the colon. */
3095 /* We have found an enumerated type. */
3096 /* According to comments in read_enum_type
3097 a comma could end it instead of a semicolon.
3098 I don't know where that happens.
3100 while (*p && *p != ';' && *p != ',')
3104 /* Check for and handle cretinous dbx symbol name
3106 if (*p == '\\' || (*p == '?' && p[1] == '\0'))
3107 p = next_symbol_text (objfile);
3109 /* Point to the character after the name
3110 of the enum constant. */
3111 for (q = p; *q && *q != ':'; q++)
3113 /* Note that the value doesn't matter for
3114 enum constants in psymtabs, just in symtabs. */
3115 add_psymbol_to_list (p, q - p,
3116 VAR_DOMAIN, LOC_CONST,
3117 &objfile->static_psymbols, 0,
3118 0, psymtab_language, objfile);
3119 /* Point past the name. */
3121 /* Skip over the value. */
3122 while (*p && *p != ',')
3124 /* Advance past the comma. */
3131 /* Constant, e.g. from "const" in Pascal. */
3132 add_psymbol_to_list (namestring, p - namestring,
3133 VAR_DOMAIN, LOC_CONST,
3134 &objfile->static_psymbols, sh.value,
3135 0, psymtab_language, objfile);
3141 int name_len = p - namestring;
3142 char *name = xmalloc (name_len + 1);
3143 memcpy (name, namestring, name_len);
3144 name[name_len] = '\0';
3145 function_outside_compilation_unit_complaint (name);
3148 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3149 add_psymbol_to_list (namestring, p - namestring,
3150 VAR_DOMAIN, LOC_BLOCK,
3151 &objfile->static_psymbols,
3153 psymtab_language, objfile);
3156 /* Global functions were ignored here, but now they
3157 are put into the global psymtab like one would expect.
3158 They're also in the minimal symbol table. */
3162 int name_len = p - namestring;
3163 char *name = xmalloc (name_len + 1);
3164 memcpy (name, namestring, name_len);
3165 name[name_len] = '\0';
3166 function_outside_compilation_unit_complaint (name);
3169 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3170 add_psymbol_to_list (namestring, p - namestring,
3171 VAR_DOMAIN, LOC_BLOCK,
3172 &objfile->global_psymbols,
3174 psymtab_language, objfile);
3177 /* Two things show up here (hopefully); static symbols of
3178 local scope (static used inside braces) or extensions
3179 of structure symbols. We can ignore both. */
3193 case '#': /* for symbol identification (used in live ranges) */
3197 /* It is a C++ nested symbol. We don't need to record it
3198 (I don't think); if we try to look up foo::bar::baz,
3199 then symbols for the symtab containing foo should get
3200 read in, I think. */
3201 /* Someone says sun cc puts out symbols like
3202 /foo/baz/maclib::/usr/local/bin/maclib,
3203 which would get here with a symbol type of ':'. */
3207 /* Unexpected symbol descriptor. The second and subsequent stabs
3208 of a continued stab can show up here. The question is
3209 whether they ever can mimic a normal stab--it would be
3210 nice if not, since we certainly don't want to spend the
3211 time searching to the end of every string looking for
3214 complaint (&symfile_complaints,
3215 "unknown symbol descriptor `%c'", p[1]);
3217 /* Ignore it; perhaps it is an extension that we don't
3226 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
3227 /* Solaris 2 end of module, finish current partial
3228 symbol table. END_PSYMTAB will set
3229 pst->texthigh to the proper value, which is
3230 necessary if a module compiled without
3231 debugging info follows this module. */
3234 pst = (struct partial_symtab *) 0;
3236 dependencies_used = 0;
3242 if (sh.value > save_pst->texthigh)
3243 save_pst->texthigh = sh.value;
3248 case N_SSYM: /* Claim: Structure or union element.
3249 Hopefully, I can ignore this. */
3250 case N_ENTRY: /* Alternate entry point; can ignore. */
3251 case N_MAIN: /* Can definitely ignore this. */
3252 case N_CATCH: /* These are GNU C++ extensions */
3253 case N_EHDECL: /* that can safely be ignored here. */
3263 case N_NSYMS: /* Ultrix 4.0: symbol count */
3264 case N_DEFD: /* GNU Modula-2 */
3265 case N_ALIAS: /* SunPro F77: alias name, ignore for now. */
3267 case N_OBJ: /* useless types from Solaris */
3269 /* These symbols aren't interesting; don't worry about them */
3274 /* If we haven't found it yet, ignore it. It's probably some
3275 new type we don't know about yet. */
3276 complaint (&symfile_complaints, "unknown symbol type %s",
3277 local_hex_string (type_code)); /*CUR_SYMBOL_TYPE*/
3281 && stabstring != debug_info->ss + fh->issBase + sh.iss)
3284 /* end - Handle continuation */
3289 for (cur_sdx = 0; cur_sdx < fh->csym;)
3292 enum address_class class;
3294 (*swap_sym_in) (cur_bfd,
3295 ((char *) debug_info->external_sym
3296 + ((fh->isymBase + cur_sdx)
3297 * external_sym_size)),
3300 if (ECOFF_IS_STAB (&sh))
3306 /* Non absolute static symbols go into the minimal table. */
3307 if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil
3308 || (sh.index == indexNil
3309 && (sh.st != stStatic || sh.sc == scAbs)))
3311 /* FIXME, premature? */
3316 name = debug_info->ss + fh->issBase + sh.iss;
3322 /* The value of a stEnd symbol is the displacement from the
3323 corresponding start symbol value, do not relocate it. */
3325 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3332 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3336 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
3347 prim_record_minimal_symbol_and_info (name, sh.value,
3348 mst_file_text, NULL,
3349 SECT_OFF_TEXT (objfile), NULL,
3355 /* Ignore all parameter symbol records. */
3356 if (sh.index >= hdr->iauxMax)
3358 /* Should not happen, but does when cross-compiling
3359 with the MIPS compiler. FIXME -- pull later. */
3360 index_complaint (name);
3361 new_sdx = cur_sdx + 1; /* Don't skip at all */
3364 new_sdx = AUX_GET_ISYM (fh->fBigendian,
3365 (debug_info->external_aux
3369 if (new_sdx <= cur_sdx)
3371 /* This should not happen either... FIXME. */
3372 complaint (&symfile_complaints,
3373 "bad proc end in aux found from symbol %s",
3375 new_sdx = cur_sdx + 1; /* Don't skip backward */
3378 /* For stProc symbol records, we need to check the
3379 storage class as well, as only (stProc, scText)
3380 entries represent "real" procedures - See the
3381 Compaq document titled "Object File / Symbol Table
3382 Format Specification" for more information. If the
3383 storage class is not scText, we discard the whole
3384 block of symbol records for this stProc. */
3385 if (sh.st == stProc && sh.sc != scText)
3388 /* Usually there is a local and a global stProc symbol
3389 for a function. This means that the function name
3390 has already been entered into the mimimal symbol table
3391 while processing the global symbols in pass 2 above.
3392 One notable exception is the PROGRAM name from
3393 f77 compiled executables, it is only put out as
3394 local stProc symbol, and a global MAIN__ stProc symbol
3395 points to it. It doesn't matter though, as gdb is
3396 still able to find the PROGRAM name via the partial
3397 symbol table, and the MAIN__ symbol via the minimal
3399 if (sh.st == stProc)
3400 add_psymbol_to_list (name, strlen (name),
3401 VAR_DOMAIN, LOC_BLOCK,
3402 &objfile->global_psymbols,
3403 0, sh.value, psymtab_language, objfile);
3405 add_psymbol_to_list (name, strlen (name),
3406 VAR_DOMAIN, LOC_BLOCK,
3407 &objfile->static_psymbols,
3408 0, sh.value, psymtab_language, objfile);
3410 procaddr = sh.value;
3413 (*swap_sym_in) (cur_bfd,
3414 ((char *) debug_info->external_sym
3415 + ((fh->isymBase + cur_sdx - 1)
3416 * external_sym_size)),
3421 /* Kludge for Irix 5.2 zero fh->adr. */
3423 && (pst->textlow == 0 || procaddr < pst->textlow))
3424 pst->textlow = procaddr;
3426 high = procaddr + sh.value;
3427 if (high > pst->texthigh)
3428 pst->texthigh = high;
3431 case stStatic: /* Variable */
3432 if (SC_IS_DATA (sh.sc))
3433 prim_record_minimal_symbol_and_info (name, sh.value,
3434 mst_file_data, NULL,
3435 SECT_OFF_DATA (objfile),
3439 prim_record_minimal_symbol_and_info (name, sh.value,
3441 SECT_OFF_BSS (objfile),
3447 case stIndirect: /* Irix5 forward declaration */
3448 /* Skip forward declarations from Irix5 cc */
3451 case stTypedef: /* Typedef */
3452 /* Skip typedefs for forward declarations and opaque
3453 structs from alpha and mips cc. */
3454 if (sh.iss == 0 || has_opaque_xref (fh, &sh))
3456 class = LOC_TYPEDEF;
3459 case stConstant: /* Constant decl */
3466 case stBlock: /* { }, str, un, enum */
3467 /* Do not create a partial symbol for cc unnamed aggregates
3468 and gcc empty aggregates. */
3469 if ((sh.sc == scInfo
3470 || SC_IS_COMMON (sh.sc))
3472 && sh.index != cur_sdx + 2)
3474 add_psymbol_to_list (name, strlen (name),
3475 STRUCT_DOMAIN, LOC_TYPEDEF,
3476 &objfile->static_psymbols,
3478 psymtab_language, objfile);
3480 handle_psymbol_enumerators (objfile, fh, sh.st, sh.value);
3482 /* Skip over the block */
3484 if (new_sdx <= cur_sdx)
3486 /* This happens with the Ultrix kernel. */
3487 complaint (&symfile_complaints,
3488 "bad aux index at block symbol %s", name);
3489 new_sdx = cur_sdx + 1; /* Don't skip backward */
3494 case stFile: /* File headers */
3495 case stLabel: /* Labels */
3496 case stEnd: /* Ends of files */
3499 case stLocal: /* Local variables */
3500 /* Normally these are skipped because we skip over
3501 all blocks we see. However, these can occur
3502 as visible symbols in a .h file that contains code. */
3506 /* Both complaints are valid: one gives symbol name,
3507 the other the offending symbol type. */
3508 complaint (&symfile_complaints, "unknown local symbol %s",
3510 complaint (&symfile_complaints, "with type %d", sh.st);
3514 /* Use this gdb symbol */
3515 add_psymbol_to_list (name, strlen (name),
3517 &objfile->static_psymbols,
3518 0, sh.value, psymtab_language, objfile);
3520 cur_sdx++; /* Go to next file symbol */
3523 /* Now do enter the external symbols. */
3524 ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset];
3525 cur_sdx = fdr_to_pst[f_idx].n_globals;
3526 PST_PRIVATE (save_pst)->extern_count = cur_sdx;
3527 PST_PRIVATE (save_pst)->extern_tab = ext_ptr;
3528 for (; --cur_sdx >= 0; ext_ptr++)
3530 enum address_class class;
3535 if (ext_ptr->ifd != f_idx)
3536 internal_error (__FILE__, __LINE__, "failed internal consistency check");
3537 psh = &ext_ptr->asym;
3539 /* Do not add undefined symbols to the partial symbol table. */
3540 if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil)
3543 svalue = psh->value;
3548 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3555 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3559 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
3566 /* These are generated for static symbols in .o files,
3571 /* External procedure symbols have been entered
3572 into the minimal symbol table in pass 2 above.
3573 Ignore them, as parse_external will ignore them too. */
3579 unknown_ext_complaint (debug_info->ssext + psh->iss);
3580 /* Fall through, pretend it's global. */
3582 /* Global common symbols are resolved by the runtime loader,
3584 if (SC_IS_COMMON (psh->sc))
3590 name = debug_info->ssext + psh->iss;
3591 add_psymbol_to_list (name, strlen (name),
3593 &objfile->global_psymbols,
3595 psymtab_language, objfile);
3599 /* Link pst to FDR. end_psymtab returns NULL if the psymtab was
3600 empty and put on the free list. */
3601 fdr_to_pst[f_idx].pst = end_psymtab (save_pst,
3602 psymtab_include_list, includes_used,
3603 -1, save_pst->texthigh,
3604 dependency_list, dependencies_used, textlow_not_set);
3606 dependencies_used = 0;
3608 if (objfile->ei.entry_point >= save_pst->textlow &&
3609 objfile->ei.entry_point < save_pst->texthigh)
3611 objfile->ei.deprecated_entry_file_lowpc = save_pst->textlow;
3612 objfile->ei.deprecated_entry_file_highpc = save_pst->texthigh;
3615 /* The objfile has its functions reordered if this partial symbol
3616 table overlaps any other partial symbol table.
3617 We cannot assume a reordered objfile if a partial symbol table
3618 is contained within another partial symbol table, as partial symbol
3619 tables for include files with executable code are contained
3620 within the partial symbol table for the including source file,
3621 and we do not want to flag the objfile reordered for these cases.
3623 This strategy works well for Irix-5.2 shared libraries, but we
3624 might have to use a more elaborate (and slower) algorithm for
3626 save_pst = fdr_to_pst[f_idx].pst;
3627 if (save_pst != NULL
3628 && save_pst->textlow != 0
3629 && !(objfile->flags & OBJF_REORDERED))
3631 ALL_OBJFILE_PSYMTABS (objfile, pst)
3634 && save_pst->textlow >= pst->textlow
3635 && save_pst->textlow < pst->texthigh
3636 && save_pst->texthigh > pst->texthigh)
3638 objfile->flags |= OBJF_REORDERED;
3645 /* Now scan the FDRs for dependencies */
3646 for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
3648 fh = f_idx + debug_info->fdr;
3649 pst = fdr_to_pst[f_idx].pst;
3651 if (pst == (struct partial_symtab *) NULL)
3654 /* This should catch stabs-in-ecoff. */
3658 /* Skip the first file indirect entry as it is a self dependency
3659 for source files or a reverse .h -> .c dependency for header files. */
3660 pst->number_of_dependencies = 0;
3662 ((struct partial_symtab **)
3663 obstack_alloc (&objfile->objfile_obstack,
3665 * sizeof (struct partial_symtab *))));
3666 for (s_idx = 1; s_idx < fh->crfd; s_idx++)
3670 (*swap_rfd_in) (cur_bfd,
3671 ((char *) debug_info->external_rfd
3672 + (fh->rfdBase + s_idx) * external_rfd_size),
3674 if (rh < 0 || rh >= hdr->ifdMax)
3676 complaint (&symfile_complaints, "bad file number %ld", rh);
3680 /* Skip self dependencies of header files. */
3684 /* Do not add to dependeny list if psymtab was empty. */
3685 if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL)
3687 pst->dependencies[pst->number_of_dependencies++] = fdr_to_pst[rh].pst;
3691 /* Remove the dummy psymtab created for -O3 images above, if it is
3692 still empty, to enable the detection of stripped executables. */
3693 if (objfile->psymtabs->next == NULL
3694 && objfile->psymtabs->number_of_dependencies == 0
3695 && objfile->psymtabs->n_global_syms == 0
3696 && objfile->psymtabs->n_static_syms == 0)
3697 objfile->psymtabs = NULL;
3698 do_cleanups (old_chain);
3701 /* If the current psymbol has an enumerated type, we need to add
3702 all the the enum constants to the partial symbol table. */
3705 handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype,
3708 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
3709 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
3710 char *ext_sym = ((char *) debug_info->external_sym
3711 + ((fh->isymBase + cur_sdx + 1) * external_sym_size));
3721 /* It is an enumerated type if the next symbol entry is a stMember
3722 and its auxiliary index is indexNil or its auxiliary entry
3723 is a plain btNil or btVoid.
3724 Alpha cc -migrate enums are recognized by a zero index and
3725 a zero symbol value.
3726 DU 4.0 cc enums are recognized by a member type of btEnum without
3727 qualifiers and a zero symbol value. */
3728 (*swap_sym_in) (cur_bfd, ext_sym, &sh);
3729 if (sh.st != stMember)
3732 if (sh.index == indexNil
3733 || (sh.index == 0 && svalue == 0))
3735 (*debug_swap->swap_tir_in) (fh->fBigendian,
3736 &(debug_info->external_aux
3737 + fh->iauxBase + sh.index)->a_ti,
3739 if ((tir.bt != btNil
3741 && (tir.bt != btEnum || svalue != 0))
3742 || tir.tq0 != tqNil)
3754 (*swap_sym_in) (cur_bfd, ext_sym, &sh);
3755 if (sh.st != stMember)
3757 name = debug_info->ss + cur_fdr->issBase + sh.iss;
3759 /* Note that the value doesn't matter for enum constants
3760 in psymtabs, just in symtabs. */
3761 add_psymbol_to_list (name, strlen (name),
3762 VAR_DOMAIN, LOC_CONST,
3763 &objfile->static_psymbols, 0,
3764 (CORE_ADDR) 0, psymtab_language, objfile);
3765 ext_sym += external_sym_size;
3769 /* Get the next symbol. OBJFILE is unused. */
3772 mdebug_next_symbol_text (struct objfile *objfile)
3777 (*debug_swap->swap_sym_in) (cur_bfd,
3778 ((char *) debug_info->external_sym
3779 + ((cur_fdr->isymBase + cur_sdx)
3780 * debug_swap->external_sym_size)),
3782 return debug_info->ss + cur_fdr->issBase + sh.iss;
3785 /* Ancillary function to psymtab_to_symtab(). Does all the work
3786 for turning the partial symtab PST into a symtab, recurring
3787 first on all dependent psymtabs. The argument FILENAME is
3788 only passed so we can see in debug stack traces what file
3791 This function has a split personality, based on whether the
3792 symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
3793 The flow of control and even the memory allocation differs. FIXME. */
3796 psymtab_to_symtab_1 (struct partial_symtab *pst, char *filename)
3798 bfd_size_type external_sym_size;
3799 bfd_size_type external_pdr_size;
3800 void (*swap_sym_in) (bfd *, void *, SYMR *);
3801 void (*swap_pdr_in) (bfd *, void *, PDR *);
3803 struct symtab *st = NULL;
3805 struct linetable *lines;
3806 CORE_ADDR lowest_pdr_addr = 0;
3807 int last_symtab_ended = 0;
3813 /* Read in all partial symbtabs on which this one is dependent.
3814 NOTE that we do have circular dependencies, sigh. We solved
3815 that by setting pst->readin before this point. */
3817 for (i = 0; i < pst->number_of_dependencies; i++)
3818 if (!pst->dependencies[i]->readin)
3820 /* Inform about additional files to be read in. */
3823 fputs_filtered (" ", gdb_stdout);
3825 fputs_filtered ("and ", gdb_stdout);
3827 printf_filtered ("%s...",
3828 pst->dependencies[i]->filename);
3829 wrap_here (""); /* Flush output */
3830 gdb_flush (gdb_stdout);
3832 /* We only pass the filename for debug purposes */
3833 psymtab_to_symtab_1 (pst->dependencies[i],
3834 pst->dependencies[i]->filename);
3837 /* Do nothing if this is a dummy psymtab. */
3839 if (pst->n_global_syms == 0 && pst->n_static_syms == 0
3840 && pst->textlow == 0 && pst->texthigh == 0)
3843 /* Now read the symbols for this symtab */
3845 cur_bfd = CUR_BFD (pst);
3846 debug_swap = DEBUG_SWAP (pst);
3847 debug_info = DEBUG_INFO (pst);
3848 pending_list = PENDING_LIST (pst);
3849 external_sym_size = debug_swap->external_sym_size;
3850 external_pdr_size = debug_swap->external_pdr_size;
3851 swap_sym_in = debug_swap->swap_sym_in;
3852 swap_pdr_in = debug_swap->swap_pdr_in;
3853 current_objfile = pst->objfile;
3854 cur_fd = FDR_IDX (pst);
3855 fh = ((cur_fd == -1)
3857 : debug_info->fdr + cur_fd);
3860 /* See comment in parse_partial_symbols about the @stabs sentinel. */
3861 processing_gcc_compilation = 0;
3862 if (fh != (FDR *) NULL && fh->csym >= 2)
3866 (*swap_sym_in) (cur_bfd,
3867 ((char *) debug_info->external_sym
3868 + (fh->isymBase + 1) * external_sym_size),
3870 if (strcmp (debug_info->ss + fh->issBase + sh.iss,
3873 /* We indicate that this is a GCC compilation so that certain
3874 features will be enabled in stabsread/dbxread. */
3875 processing_gcc_compilation = 2;
3879 if (processing_gcc_compilation != 0)
3882 /* This symbol table contains stabs-in-ecoff entries. */
3884 /* Parse local symbols first */
3886 if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */
3888 current_objfile = NULL;
3891 for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
3897 (*swap_sym_in) (cur_bfd,
3898 (((char *) debug_info->external_sym)
3899 + (fh->isymBase + cur_sdx) * external_sym_size),
3901 name = debug_info->ss + fh->issBase + sh.iss;
3903 /* XXX This is a hack. It will go away! */
3904 if (ECOFF_IS_STAB (&sh) || (name[0] == '#'))
3906 int type_code = ECOFF_UNMARK_STAB (sh.index);
3908 /* We should never get non N_STAB symbols here, but they
3909 should be harmless, so keep process_one_symbol from
3910 complaining about them. */
3911 if (type_code & N_STAB)
3913 /* If we found a trailing N_SO with no name, process
3914 it here instead of in process_one_symbol, so we
3915 can keep a handle to its symtab. The symtab
3916 would otherwise be ended twice, once in
3917 process_one_symbol, and once after this loop. */
3918 if (type_code == N_SO
3920 && previous_stab_code != (unsigned char) N_SO
3923 valu += ANOFFSET (pst->section_offsets,
3924 SECT_OFF_TEXT (pst->objfile));
3925 previous_stab_code = N_SO;
3926 st = end_symtab (valu, pst->objfile,
3927 SECT_OFF_TEXT (pst->objfile));
3929 last_symtab_ended = 1;
3933 last_symtab_ended = 0;
3934 process_one_symbol (type_code, 0, valu, name,
3935 pst->section_offsets, pst->objfile);
3938 /* Similarly a hack. */
3939 else if (name[0] == '#')
3941 process_one_symbol (N_SLINE, 0, valu, name,
3942 pst->section_offsets, pst->objfile);
3944 if (type_code == N_FUN)
3946 /* Make up special symbol to contain
3947 procedure specific info */
3948 struct mips_extra_func_info *e =
3949 ((struct mips_extra_func_info *)
3950 obstack_alloc (¤t_objfile->objfile_obstack,
3951 sizeof (struct mips_extra_func_info)));
3952 struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME);
3954 memset (e, 0, sizeof (struct mips_extra_func_info));
3955 SYMBOL_DOMAIN (s) = LABEL_DOMAIN;
3956 SYMBOL_CLASS (s) = LOC_CONST;
3957 SYMBOL_TYPE (s) = mdebug_type_void;
3958 SYMBOL_VALUE (s) = (long) e;
3959 e->pdr.framereg = -1;
3960 add_symbol_to_list (s, &local_symbols);
3963 else if (sh.st == stLabel)
3965 if (sh.index == indexNil)
3967 /* This is what the gcc2_compiled and __gnu_compiled_*
3968 show up as. So don't complain. */
3973 /* Handle encoded stab line number. */
3974 valu += ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile));
3975 record_line (current_subfile, sh.index, valu);
3978 else if (sh.st == stProc || sh.st == stStaticProc
3979 || sh.st == stStatic || sh.st == stEnd)
3980 /* These are generated by gcc-2.x, do not complain */
3983 complaint (&symfile_complaints, "unknown stabs symbol %s", name);
3986 if (! last_symtab_ended)
3988 st = end_symtab (pst->texthigh, pst->objfile, SECT_OFF_TEXT (pst->objfile));
3992 /* There used to be a call to sort_blocks here, but this should not
3993 be necessary for stabs symtabs. And as sort_blocks modifies the
3994 start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
3995 it did the wrong thing if the first procedure in a file was
3996 generated via asm statements. */
3998 /* Fill in procedure info next. */
4002 struct cleanup *old_chain;
4008 pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
4009 old_chain = make_cleanup (xfree, pr_block);
4011 pdr_ptr = ((char *) debug_info->external_pdr
4012 + fh->ipdFirst * external_pdr_size);
4013 pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
4017 pdr_ptr += external_pdr_size, pdr_in++)
4019 (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
4021 /* Determine lowest PDR address, the PDRs are not always
4023 if (pdr_in == pr_block)
4024 lowest_pdr_addr = pdr_in->adr;
4025 else if (pdr_in->adr < lowest_pdr_addr)
4026 lowest_pdr_addr = pdr_in->adr;
4030 pdr_in_end = pdr_in + fh->cpd;
4031 for (; pdr_in < pdr_in_end; pdr_in++)
4032 parse_procedure (pdr_in, st, pst);
4034 do_cleanups (old_chain);
4039 /* This symbol table contains ordinary ecoff entries. */
4048 st = new_symtab ("unknown", 0, pst->objfile);
4052 maxlines = 2 * fh->cline;
4053 st = new_symtab (pst->filename, maxlines, pst->objfile);
4055 /* The proper language was already determined when building
4056 the psymtab, use it. */
4057 st->language = PST_PRIVATE (pst)->pst_language;
4060 psymtab_language = st->language;
4062 lines = LINETABLE (st);
4064 /* Get a new lexical context */
4066 push_parse_stack ();
4067 top_stack->cur_st = st;
4068 top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st),
4070 BLOCK_START (top_stack->cur_block) = pst->textlow;
4071 BLOCK_END (top_stack->cur_block) = 0;
4072 top_stack->blocktype = stFile;
4073 top_stack->cur_type = 0;
4074 top_stack->procadr = 0;
4075 top_stack->numargs = 0;
4076 found_ecoff_debugging_info = 0;
4083 /* Parse local symbols first */
4084 sym_ptr = ((char *) debug_info->external_sym
4085 + fh->isymBase * external_sym_size);
4086 sym_end = sym_ptr + fh->csym * external_sym_size;
4087 while (sym_ptr < sym_end)
4092 (*swap_sym_in) (cur_bfd, sym_ptr, &sh);
4093 c = parse_symbol (&sh,
4094 debug_info->external_aux + fh->iauxBase,
4095 sym_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);
4096 sym_ptr += c * external_sym_size;
4099 /* Linenumbers. At the end, check if we can save memory.
4100 parse_lines has to look ahead an arbitrary number of PDR
4101 structures, so we swap them all first. */
4105 struct cleanup *old_chain;
4111 pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
4113 old_chain = make_cleanup (xfree, pr_block);
4115 pdr_ptr = ((char *) debug_info->external_pdr
4116 + fh->ipdFirst * external_pdr_size);
4117 pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
4121 pdr_ptr += external_pdr_size, pdr_in++)
4123 (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
4125 /* Determine lowest PDR address, the PDRs are not always
4127 if (pdr_in == pr_block)
4128 lowest_pdr_addr = pdr_in->adr;
4129 else if (pdr_in->adr < lowest_pdr_addr)
4130 lowest_pdr_addr = pdr_in->adr;
4133 parse_lines (fh, pr_block, lines, maxlines, pst, lowest_pdr_addr);
4134 if (lines->nitems < fh->cline)
4135 lines = shrink_linetable (lines);
4137 /* Fill in procedure info next. */
4139 pdr_in_end = pdr_in + fh->cpd;
4140 for (; pdr_in < pdr_in_end; pdr_in++)
4141 parse_procedure (pdr_in, 0, pst);
4143 do_cleanups (old_chain);
4147 LINETABLE (st) = lines;
4149 /* .. and our share of externals.
4150 XXX use the global list to speed up things here. how?
4151 FIXME, Maybe quit once we have found the right number of ext's? */
4152 top_stack->cur_st = st;
4153 top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
4155 top_stack->blocktype = stFile;
4157 ext_ptr = PST_PRIVATE (pst)->extern_tab;
4158 for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
4159 parse_external (ext_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);
4161 /* If there are undefined symbols, tell the user.
4162 The alpha has an undefined symbol for every symbol that is
4163 from a shared library, so tell the user only if verbose is on. */
4164 if (info_verbose && n_undef_symbols)
4166 printf_filtered ("File %s contains %d unresolved references:",
4167 st->filename, n_undef_symbols);
4168 printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
4169 n_undef_vars, n_undef_procs, n_undef_labels);
4170 n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0;
4180 /* Now link the psymtab and the symtab. */
4183 current_objfile = NULL;
4186 /* Ancillary parsing procedures. */
4188 /* Return 1 if the symbol pointed to by SH has a cross reference
4189 to an opaque aggregate type, else 0. */
4192 has_opaque_xref (FDR *fh, SYMR *sh)
4199 if (sh->index == indexNil)
4202 ax = debug_info->external_aux + fh->iauxBase + sh->index;
4203 (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir);
4204 if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum)
4208 (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn);
4209 if (rn->rfd == 0xfff)
4210 rf = AUX_GET_ISYM (fh->fBigendian, ax + 1);
4218 /* Lookup the type at relative index RN. Return it in TPP
4219 if found and in any event come up with its name PNAME.
4220 BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
4221 Return value says how many aux symbols we ate. */
4224 cross_ref (int fd, union aux_ext *ax, struct type **tpp, enum type_code type_code, /* Use to alloc new type if none is found. */
4225 char **pname, int bigend, char *sym_name)
4234 struct mdebug_pending *pend;
4236 *tpp = (struct type *) NULL;
4238 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);
4240 /* Escape index means 'the next one' */
4241 if (rn->rfd == 0xfff)
4244 rf = AUX_GET_ISYM (bigend, ax + 1);
4251 /* mips cc uses a rf of -1 for opaque struct definitions.
4252 Set TYPE_FLAG_STUB for these types so that check_typedef will
4253 resolve them if the struct gets defined in another compilation unit. */
4256 *pname = "<undefined>";
4257 *tpp = init_type (type_code, 0, TYPE_FLAG_STUB, (char *) NULL, current_objfile);
4261 /* mips cc uses an escaped rn->index of 0 for struct return types
4262 of procedures that were compiled without -g. These will always remain
4264 if (rn->rfd == 0xfff && rn->index == 0)
4266 *pname = "<undefined>";
4270 /* Find the relative file descriptor and the symbol in it. */
4271 fh = get_rfd (fd, rf);
4272 xref_fd = fh - debug_info->fdr;
4274 if (rn->index >= fh->csym)
4276 /* File indirect entry is corrupt. */
4277 *pname = "<illegal>";
4278 bad_rfd_entry_complaint (sym_name, xref_fd, rn->index);
4282 /* If we have processed this symbol then we left a forwarding
4283 pointer to the type in the pending list. If not, we`ll put
4284 it in a list of pending types, to be processed later when
4285 the file will be. In any event, we collect the name for the
4288 esh = ((char *) debug_info->external_sym
4289 + ((fh->isymBase + rn->index)
4290 * debug_swap->external_sym_size));
4291 (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh);
4293 /* Make sure that this type of cross reference can be handled. */
4294 if ((sh.sc != scInfo
4295 || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect
4296 && sh.st != stStruct && sh.st != stUnion
4297 && sh.st != stEnum))
4298 && (sh.st != stBlock || !SC_IS_COMMON (sh.sc)))
4300 /* File indirect entry is corrupt. */
4301 *pname = "<illegal>";
4302 bad_rfd_entry_complaint (sym_name, xref_fd, rn->index);
4306 *pname = debug_info->ss + fh->issBase + sh.iss;
4308 pend = is_pending_symbol (fh, esh);
4313 /* We have not yet seen this type. */
4315 if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect)
4319 /* alpha cc puts out a stTypedef with a sh.iss of zero for
4321 a) forward declarations of structs/unions/enums which are not
4322 defined in this compilation unit.
4323 For these the type will be void. This is a bad design decision
4324 as cross referencing across compilation units is impossible
4325 due to the missing name.
4326 b) forward declarations of structs/unions/enums/typedefs which
4327 are defined later in this file or in another file in the same
4328 compilation unit. Irix5 cc uses a stIndirect symbol for this.
4329 Simply cross reference those again to get the true type.
4330 The forward references are not entered in the pending list and
4331 in the symbol table. */
4333 (*debug_swap->swap_tir_in) (bigend,
4334 &(debug_info->external_aux
4335 + fh->iauxBase + sh.index)->a_ti,
4337 if (tir.tq0 != tqNil)
4338 complaint (&symfile_complaints,
4339 "illegal tq0 in forward typedef for %s", sym_name);
4343 *tpp = init_type (type_code, 0, 0, (char *) NULL,
4345 *pname = "<undefined>";
4352 (debug_info->external_aux
4353 + fh->iauxBase + sh.index + 1),
4354 tpp, type_code, pname,
4355 fh->fBigendian, sym_name);
4359 /* Follow a forward typedef. This might recursively
4360 call cross_ref till we get a non typedef'ed type.
4361 FIXME: This is not correct behaviour, but gdb currently
4362 cannot handle typedefs without type copying. Type
4363 copying is impossible as we might have mutual forward
4364 references between two files and the copied type would not
4365 get filled in when we later parse its definition. */
4366 *tpp = parse_type (xref_fd,
4367 debug_info->external_aux + fh->iauxBase,
4371 debug_info->ss + fh->issBase + sh.iss);
4372 add_pending (fh, esh, *tpp);
4376 complaint (&symfile_complaints,
4377 "illegal bt %d in forward typedef for %s", tir.bt,
4379 *tpp = init_type (type_code, 0, 0, (char *) NULL,
4385 else if (sh.st == stTypedef)
4387 /* Parse the type for a normal typedef. This might recursively call
4388 cross_ref till we get a non typedef'ed type.
4389 FIXME: This is not correct behaviour, but gdb currently
4390 cannot handle typedefs without type copying. But type copying is
4391 impossible as we might have mutual forward references between
4392 two files and the copied type would not get filled in when
4393 we later parse its definition. */
4394 *tpp = parse_type (xref_fd,
4395 debug_info->external_aux + fh->iauxBase,
4399 debug_info->ss + fh->issBase + sh.iss);
4403 /* Cross reference to a struct/union/enum which is defined
4404 in another file in the same compilation unit but that file
4405 has not been parsed yet.
4406 Initialize the type only, it will be filled in when
4407 it's definition is parsed. */
4408 *tpp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
4410 add_pending (fh, esh, *tpp);
4413 /* We used one auxent normally, two if we got a "next one" rf. */
4418 /* Quick&dirty lookup procedure, to avoid the MI ones that require
4419 keeping the symtab sorted */
4421 static struct symbol *
4422 mylookup_symbol (char *name, struct block *block,
4423 domain_enum domain, enum address_class class)
4425 struct dict_iterator iter;
4430 ALL_BLOCK_SYMBOLS (block, iter, sym)
4432 if (DEPRECATED_SYMBOL_NAME (sym)[0] == inc
4433 && SYMBOL_DOMAIN (sym) == domain
4434 && SYMBOL_CLASS (sym) == class
4435 && strcmp (DEPRECATED_SYMBOL_NAME (sym), name) == 0)
4439 block = BLOCK_SUPERBLOCK (block);
4441 return mylookup_symbol (name, block, domain, class);
4446 /* Add a new symbol S to a block B. */
4449 add_symbol (struct symbol *s, struct block *b)
4451 dict_add_symbol (BLOCK_DICT (b), s);
4454 /* Add a new block B to a symtab S */
4457 add_block (struct block *b, struct symtab *s)
4459 struct blockvector *bv = BLOCKVECTOR (s);
4461 bv = (struct blockvector *) xrealloc ((void *) bv,
4462 (sizeof (struct blockvector)
4463 + BLOCKVECTOR_NBLOCKS (bv)
4464 * sizeof (bv->block)));
4465 if (bv != BLOCKVECTOR (s))
4466 BLOCKVECTOR (s) = bv;
4468 BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b;
4471 /* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
4472 MIPS' linenumber encoding might need more than one byte
4473 to describe it, LAST is used to detect these continuation lines.
4475 Combining lines with the same line number seems like a bad idea.
4476 E.g: There could be a line number entry with the same line number after the
4477 prologue and GDB should not ignore it (this is a better way to find
4478 a prologue than mips_skip_prologue).
4479 But due to the compressed line table format there are line number entries
4480 for the same line which are needed to bridge the gap to the next
4481 line number entry. These entries have a bogus address info with them
4482 and we are unable to tell them from intended duplicate line number
4484 This is another reason why -ggdb debugging format is preferable. */
4487 add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last)
4489 /* DEC c89 sometimes produces zero linenos which confuse gdb.
4490 Change them to something sensible. */
4494 last = -2; /* make sure we record first line */
4496 if (last == lineno) /* skip continuation lines */
4499 lt->item[lt->nitems].line = lineno;
4500 lt->item[lt->nitems++].pc = adr << 2;
4504 /* Sorting and reordering procedures */
4506 /* Blocks with a smaller low bound should come first */
4509 compare_blocks (const void *arg1, const void *arg2)
4512 struct block **b1 = (struct block **) arg1;
4513 struct block **b2 = (struct block **) arg2;
4515 addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2)));
4517 return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1)));
4521 /* Sort the blocks of a symtab S.
4522 Reorder the blocks in the blockvector by code-address,
4523 as required by some MI search routines */
4526 sort_blocks (struct symtab *s)
4528 struct blockvector *bv = BLOCKVECTOR (s);
4530 if (BLOCKVECTOR_NBLOCKS (bv) <= 2)
4533 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0)
4534 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0;
4535 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0)
4536 BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0;
4540 * This is very unfortunate: normally all functions are compiled in
4541 * the order they are found, but if the file is compiled -O3 things
4542 * are very different. It would be nice to find a reliable test
4543 * to detect -O3 images in advance.
4545 if (BLOCKVECTOR_NBLOCKS (bv) > 3)
4546 qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK),
4547 BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK,
4548 sizeof (struct block *),
4553 int i, j = BLOCKVECTOR_NBLOCKS (bv);
4555 for (i = FIRST_LOCAL_BLOCK; i < j; i++)
4556 if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)))
4557 high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i));
4558 BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high;
4561 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) =
4562 BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK));
4564 BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
4565 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
4566 BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
4567 BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
4571 /* Constructor/restructor/destructor procedures */
4573 /* Allocate a new symtab for NAME. Needs an estimate of how many
4574 linenumbers MAXLINES we'll put in it */
4576 static struct symtab *
4577 new_symtab (char *name, int maxlines, struct objfile *objfile)
4579 struct symtab *s = allocate_symtab (name, objfile);
4581 LINETABLE (s) = new_linetable (maxlines);
4583 /* All symtabs must have at least two blocks */
4584 BLOCKVECTOR (s) = new_bvect (2);
4585 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)
4586 = new_block (NON_FUNCTION_BLOCK);
4587 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
4588 = new_block (NON_FUNCTION_BLOCK);
4589 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) =
4590 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4592 s->free_code = free_linetable;
4593 s->debugformat = obsavestring ("ECOFF", 5,
4594 &objfile->objfile_obstack);
4598 /* Allocate a new partial_symtab NAME */
4600 static struct partial_symtab *
4601 new_psymtab (char *name, struct objfile *objfile)
4603 struct partial_symtab *psymtab;
4605 psymtab = allocate_psymtab (name, objfile);
4606 psymtab->section_offsets = objfile->section_offsets;
4608 /* Keep a backpointer to the file's symbols */
4610 psymtab->read_symtab_private = ((char *)
4611 obstack_alloc (&objfile->objfile_obstack,
4612 sizeof (struct symloc)));
4613 memset (psymtab->read_symtab_private, 0, sizeof (struct symloc));
4614 CUR_BFD (psymtab) = cur_bfd;
4615 DEBUG_SWAP (psymtab) = debug_swap;
4616 DEBUG_INFO (psymtab) = debug_info;
4617 PENDING_LIST (psymtab) = pending_list;
4619 /* The way to turn this into a symtab is to call... */
4620 psymtab->read_symtab = mdebug_psymtab_to_symtab;
4625 /* Allocate a linetable array of the given SIZE. Since the struct
4626 already includes one item, we subtract one when calculating the
4627 proper size to allocate. */
4629 static struct linetable *
4630 new_linetable (int size)
4632 struct linetable *l;
4634 size = (size - 1) * sizeof (l->item) + sizeof (struct linetable);
4635 l = (struct linetable *) xmalloc (size);
4640 /* Oops, too big. Shrink it. This was important with the 2.4 linetables,
4641 I am not so sure about the 3.4 ones.
4643 Since the struct linetable already includes one item, we subtract one when
4644 calculating the proper size to allocate. */
4646 static struct linetable *
4647 shrink_linetable (struct linetable *lt)
4650 return (struct linetable *) xrealloc ((void *) lt,
4651 (sizeof (struct linetable)
4653 * sizeof (lt->item))));
4656 /* Allocate and zero a new blockvector of NBLOCKS blocks. */
4658 static struct blockvector *
4659 new_bvect (int nblocks)
4661 struct blockvector *bv;
4664 size = sizeof (struct blockvector) + nblocks * sizeof (struct block *);
4665 bv = (struct blockvector *) xzalloc (size);
4667 BLOCKVECTOR_NBLOCKS (bv) = nblocks;
4672 /* Allocate and zero a new block, and set its BLOCK_DICT. If function
4673 is non-zero, assume the block is associated to a function, and make
4674 sure that the symbols are stored linearly; otherwise, store them
4677 static struct block *
4678 new_block (enum block_type type)
4680 /* FIXME: carlton/2003-09-11: This should use allocate_block to
4681 allocate the block. Which, in turn, suggests that the block
4682 should be allocated on an obstack. */
4683 struct block *retval = xzalloc (sizeof (struct block));
4685 if (type == FUNCTION_BLOCK)
4686 BLOCK_DICT (retval) = dict_create_linear_expandable ();
4688 BLOCK_DICT (retval) = dict_create_hashed_expandable ();
4693 /* Create a new symbol with printname NAME */
4695 static struct symbol *
4696 new_symbol (char *name)
4698 struct symbol *s = ((struct symbol *)
4699 obstack_alloc (¤t_objfile->objfile_obstack,
4700 sizeof (struct symbol)));
4702 memset (s, 0, sizeof (*s));
4703 SYMBOL_LANGUAGE (s) = psymtab_language;
4704 SYMBOL_SET_NAMES (s, name, strlen (name), current_objfile);
4708 /* Create a new type with printname NAME */
4710 static struct type *
4711 new_type (char *name)
4715 t = alloc_type (current_objfile);
4716 TYPE_NAME (t) = name;
4717 TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default;
4721 /* Read ECOFF debugging information from a BFD section. This is
4722 called from elfread.c. It parses the section into a
4723 ecoff_debug_info struct, and then lets the rest of the file handle
4727 elfmdebug_build_psymtabs (struct objfile *objfile,
4728 const struct ecoff_debug_swap *swap, asection *sec)
4730 bfd *abfd = objfile->obfd;
4731 struct ecoff_debug_info *info;
4732 struct cleanup *back_to;
4734 /* FIXME: It's not clear whether we should be getting minimal symbol
4735 information from .mdebug in an ELF file, or whether we will.
4736 Re-initialize the minimal symbol reader in case we do. */
4738 init_minimal_symbol_collection ();
4739 back_to = make_cleanup_discard_minimal_symbols ();
4741 info = ((struct ecoff_debug_info *)
4742 obstack_alloc (&objfile->objfile_obstack,
4743 sizeof (struct ecoff_debug_info)));
4745 if (!(*swap->read_debug_info) (abfd, sec, info))
4746 error ("Error reading ECOFF debugging information: %s",
4747 bfd_errmsg (bfd_get_error ()));
4749 mdebug_build_psymtabs (objfile, swap, info);
4751 install_minimal_symbols (objfile);
4752 do_cleanups (back_to);
4756 /* Things used for calling functions in the inferior.
4757 These functions are exported to our companion
4758 mips-tdep.c file and are here because they play
4759 with the symbol-table explicitly. */
4761 /* Sigtramp: make sure we have all the necessary information
4762 about the signal trampoline code. Since the official code
4763 from MIPS does not do so, we make up that information ourselves.
4764 If they fix the library (unlikely) this code will neutralize itself. */
4766 /* FIXME: This function is called only by mips-tdep.c. It needs to be
4767 here because it calls functions defined in this file, but perhaps
4768 this could be handled in a better way. Only compile it in when
4769 tm-mips.h is included. */
4774 fixup_sigtramp (void)
4778 struct block *b, *b0 = NULL;
4780 sigtramp_address = -1;
4782 /* We have to handle the following cases here:
4783 a) The Mips library has a sigtramp label within sigvec.
4784 b) Irix has a _sigtramp which we want to use, but it also has sigvec. */
4785 s = lookup_symbol ("sigvec", 0, VAR_DOMAIN, 0, NULL);
4788 b0 = SYMBOL_BLOCK_VALUE (s);
4789 s = lookup_symbol ("sigtramp", b0, VAR_DOMAIN, 0, NULL);
4793 /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */
4794 s = lookup_symbol ("_sigtramp", 0, VAR_DOMAIN, 0, NULL);
4797 /* But maybe this program uses its own version of sigvec */
4801 /* Did we or MIPSco fix the library ? */
4802 if (SYMBOL_CLASS (s) == LOC_BLOCK)
4804 sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s));
4805 sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s));
4809 sigtramp_address = SYMBOL_VALUE (s);
4810 sigtramp_end = sigtramp_address + 0x88; /* black magic */
4812 /* But what symtab does it live in ? */
4813 st = find_pc_symtab (SYMBOL_VALUE (s));
4816 * Ok, there goes the fix: turn it into a procedure, with all the
4817 * needed info. Note we make it a nested procedure of sigvec,
4818 * which is the way the (assembly) code is actually written.
4820 SYMBOL_DOMAIN (s) = VAR_DOMAIN;
4821 SYMBOL_CLASS (s) = LOC_BLOCK;
4822 SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL,
4824 TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = mdebug_type_void;
4826 /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */
4827 b = new_block (NON_FUNCTION_BLOCK);
4828 SYMBOL_BLOCK_VALUE (s) = b;
4829 BLOCK_START (b) = sigtramp_address;
4830 BLOCK_END (b) = sigtramp_end;
4831 BLOCK_FUNCTION (b) = s;
4832 BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0);
4836 /* Make a MIPS_EFI_SYMBOL_NAME entry for it */
4838 struct mips_extra_func_info *e =
4839 ((struct mips_extra_func_info *)
4840 xzalloc (sizeof (struct mips_extra_func_info)));
4842 e->numargs = 0; /* the kernel thinks otherwise */
4843 e->pdr.frameoffset = 32;
4844 e->pdr.framereg = SP_REGNUM;
4845 /* Note that setting pcreg is no longer strictly necessary as
4846 mips_frame_saved_pc is now aware of signal handler frames. */
4847 e->pdr.pcreg = PC_REGNUM;
4848 e->pdr.regmask = -2;
4849 /* Offset to saved r31, in the sigtramp case the saved registers
4850 are above the frame in the sigcontext.
4851 We have 4 alignment bytes, 12 bytes for onstack, mask and pc,
4852 32 * 4 bytes for the general registers, 12 bytes for mdhi, mdlo, ownedfp
4853 and 32 * 4 bytes for the floating point registers. */
4854 e->pdr.regoffset = 4 + 12 + 31 * 4;
4855 e->pdr.fregmask = -1;
4856 /* Offset to saved f30 (first saved *double* register). */
4857 e->pdr.fregoffset = 4 + 12 + 32 * 4 + 12 + 30 * 4;
4858 e->pdr.isym = (long) s;
4859 e->pdr.adr = sigtramp_address;
4861 current_objfile = st->objfile; /* Keep new_symbol happy */
4862 s = new_symbol (MIPS_EFI_SYMBOL_NAME);
4863 SYMBOL_VALUE (s) = (long) e;
4864 SYMBOL_DOMAIN (s) = LABEL_DOMAIN;
4865 SYMBOL_CLASS (s) = LOC_CONST;
4866 SYMBOL_TYPE (s) = mdebug_type_void;
4867 current_objfile = NULL;
4870 dict_add_symbol (BLOCK_DICT (b), s);
4873 #endif /* TM_MIPS_H */
4876 _initialize_mdebugread (void)
4879 init_type (TYPE_CODE_VOID, 1,
4881 "void", (struct objfile *) NULL);
4883 init_type (TYPE_CODE_INT, 1,
4885 "char", (struct objfile *) NULL);
4886 mdebug_type_unsigned_char =
4887 init_type (TYPE_CODE_INT, 1,
4889 "unsigned char", (struct objfile *) NULL);
4891 init_type (TYPE_CODE_INT, 2,
4893 "short", (struct objfile *) NULL);
4894 mdebug_type_unsigned_short =
4895 init_type (TYPE_CODE_INT, 2,
4897 "unsigned short", (struct objfile *) NULL);
4898 mdebug_type_int_32 =
4899 init_type (TYPE_CODE_INT, 4,
4901 "int", (struct objfile *) NULL);
4902 mdebug_type_unsigned_int_32 =
4903 init_type (TYPE_CODE_INT, 4,
4905 "unsigned int", (struct objfile *) NULL);
4906 mdebug_type_int_64 =
4907 init_type (TYPE_CODE_INT, 8,
4909 "int", (struct objfile *) NULL);
4910 mdebug_type_unsigned_int_64 =
4911 init_type (TYPE_CODE_INT, 8,
4913 "unsigned int", (struct objfile *) NULL);
4914 mdebug_type_long_32 =
4915 init_type (TYPE_CODE_INT, 4,
4917 "long", (struct objfile *) NULL);
4918 mdebug_type_unsigned_long_32 =
4919 init_type (TYPE_CODE_INT, 4,
4921 "unsigned long", (struct objfile *) NULL);
4922 mdebug_type_long_64 =
4923 init_type (TYPE_CODE_INT, 8,
4925 "long", (struct objfile *) NULL);
4926 mdebug_type_unsigned_long_64 =
4927 init_type (TYPE_CODE_INT, 8,
4929 "unsigned long", (struct objfile *) NULL);
4930 mdebug_type_long_long_64 =
4931 init_type (TYPE_CODE_INT, 8,
4933 "long long", (struct objfile *) NULL);
4934 mdebug_type_unsigned_long_long_64 =
4935 init_type (TYPE_CODE_INT, 8,
4937 "unsigned long long", (struct objfile *) NULL);
4938 mdebug_type_adr_32 =
4939 init_type (TYPE_CODE_PTR, 4,
4941 "adr_32", (struct objfile *) NULL);
4942 TYPE_TARGET_TYPE (mdebug_type_adr_32) = mdebug_type_void;
4943 mdebug_type_adr_64 =
4944 init_type (TYPE_CODE_PTR, 8,
4946 "adr_64", (struct objfile *) NULL);
4947 TYPE_TARGET_TYPE (mdebug_type_adr_64) = mdebug_type_void;
4949 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
4951 "float", (struct objfile *) NULL);
4952 mdebug_type_double =
4953 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
4955 "double", (struct objfile *) NULL);
4956 mdebug_type_complex =
4957 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
4959 "complex", (struct objfile *) NULL);
4960 TYPE_TARGET_TYPE (mdebug_type_complex) = mdebug_type_float;
4961 mdebug_type_double_complex =
4962 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
4964 "double complex", (struct objfile *) NULL);
4965 TYPE_TARGET_TYPE (mdebug_type_double_complex) = mdebug_type_double;
4967 /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
4969 mdebug_type_string =
4970 init_type (TYPE_CODE_STRING,
4971 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
4973 (struct objfile *) NULL);
4975 /* We use TYPE_CODE_INT to print these as integers. Does this do any
4976 good? Would we be better off with TYPE_CODE_ERROR? Should
4977 TYPE_CODE_ERROR print things in hex if it knows the size? */
4978 mdebug_type_fixed_dec =
4979 init_type (TYPE_CODE_INT,
4980 TARGET_INT_BIT / TARGET_CHAR_BIT,
4982 (struct objfile *) NULL);
4984 mdebug_type_float_dec =
4985 init_type (TYPE_CODE_ERROR,
4986 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
4987 0, "floating decimal",
4988 (struct objfile *) NULL);
4990 nodebug_func_symbol_type = init_type (TYPE_CODE_FUNC, 1, 0,
4991 "<function, no debug info>", NULL);
4992 TYPE_TARGET_TYPE (nodebug_func_symbol_type) = mdebug_type_int;
4993 nodebug_var_symbol_type =
4994 init_type (TYPE_CODE_INT, TARGET_INT_BIT / HOST_CHAR_BIT, 0,
4995 "<variable, no debug info>", NULL);