1 /* Read a symbol table in ECOFF format (Third-Eye).
2 Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
3 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 Free Software Foundation, Inc.
5 Original version contributed by Alessandro Forin (af@cs.cmu.edu) at
6 CMU. Major work by Per Bothner, John Gilmore and Ian Lance Taylor
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
26 /* This module provides the function mdebug_build_psymtabs. It reads
27 ECOFF debugging information into partial symbol tables. The
28 debugging information is read from two structures. A struct
29 ecoff_debug_swap includes the sizes of each ECOFF structure and
30 swapping routines; these are fixed for a particular target. A
31 struct ecoff_debug_info points to the debugging information for a
32 particular object file.
34 ECOFF symbol tables are mostly written in the byte order of the
35 target machine. However, one section of the table (the auxiliary
36 symbol information) is written in the host byte order. There is a
37 bit in the other symbol info which describes which host byte order
38 was used. ECOFF thereby takes the trophy from Intel `b.out' for
39 the most brain-dead adaptation of a file format to byte order.
41 This module can read all four of the known byte-order combinations,
42 on any type of host. */
50 #include "gdb_obstack.h"
52 #include "stabsread.h"
53 #include "complaints.h"
55 #include "gdb_assert.h"
57 /* These are needed if the tm.h file does not contain the necessary
58 mips specific definitions. */
60 #ifndef MIPS_EFI_SYMBOL_NAME
61 #define MIPS_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
62 extern void ecoff_relocate_efi (struct symbol *, CORE_ADDR);
64 #include "coff/symconst.h"
65 typedef struct mips_extra_func_info
70 *mips_extra_func_info_t;
77 #include <sys/types.h>
81 #include "gdb_string.h"
85 #include "coff/ecoff.h" /* COFF-like aspects of ecoff files */
87 #include "libaout.h" /* Private BFD a.out information. */
88 #include "aout/aout64.h"
89 #include "aout/stab_gnu.h" /* STABS information */
91 #include "expression.h"
92 #include "language.h" /* For local_hex_string() */
94 extern void _initialize_mdebugread (void);
96 /* Provide a way to test if we have both ECOFF and ELF symbol tables.
97 We use this define in order to know whether we should override a
98 symbol's ECOFF section with its ELF section. This is necessary in
99 case the symbol's ELF section could not be represented in ECOFF. */
100 #define ECOFF_IN_ELF(bfd) (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
101 && bfd_get_section_by_name (bfd, ".mdebug") != NULL)
104 /* We put a pointer to this structure in the read_symtab_private field
109 /* Index of the FDR that this psymtab represents. */
111 /* The BFD that the psymtab was created from. */
113 const struct ecoff_debug_swap *debug_swap;
114 struct ecoff_debug_info *debug_info;
115 struct mdebug_pending **pending_list;
116 /* Pointer to external symbols for this file. */
118 /* Size of extern_tab. */
120 enum language pst_language;
123 #define PST_PRIVATE(p) ((struct symloc *)(p)->read_symtab_private)
124 #define FDR_IDX(p) (PST_PRIVATE(p)->fdr_idx)
125 #define CUR_BFD(p) (PST_PRIVATE(p)->cur_bfd)
126 #define DEBUG_SWAP(p) (PST_PRIVATE(p)->debug_swap)
127 #define DEBUG_INFO(p) (PST_PRIVATE(p)->debug_info)
128 #define PENDING_LIST(p) (PST_PRIVATE(p)->pending_list)
130 #define SC_IS_TEXT(sc) ((sc) == scText \
131 || (sc) == scRConst \
134 #define SC_IS_DATA(sc) ((sc) == scData \
139 #define SC_IS_COMMON(sc) ((sc) == scCommon || (sc) == scSCommon)
140 #define SC_IS_BSS(sc) ((sc) == scBss)
141 #define SC_IS_SBSS(sc) ((sc) == scSBss)
142 #define SC_IS_UNDEF(sc) ((sc) == scUndefined || (sc) == scSUndefined)
144 /* Various complaints about symbol reading that don't abort the process */
146 index_complaint (const char *arg1)
148 complaint (&symfile_complaints, "bad aux index at symbol %s", arg1);
152 unknown_ext_complaint (const char *arg1)
154 complaint (&symfile_complaints, "unknown external symbol %s", arg1);
158 basic_type_complaint (int arg1, const char *arg2)
160 complaint (&symfile_complaints, "cannot map ECOFF basic type 0x%x for %s",
165 bad_tag_guess_complaint (const char *arg1)
167 complaint (&symfile_complaints, "guessed tag type of %s incorrectly", arg1);
171 bad_rfd_entry_complaint (const char *arg1, int arg2, int arg3)
173 complaint (&symfile_complaints, "bad rfd entry for %s: file %d, index %d",
178 unexpected_type_code_complaint (const char *arg1)
180 complaint (&symfile_complaints, "unexpected type code for %s", arg1);
183 /* Macros and extra defs */
185 /* Puns: hard to find whether -g was used and how */
187 #define MIN_GLEVEL GLEVEL_0
188 #define compare_glevel(a,b) \
189 (((a) == GLEVEL_3) ? ((b) < GLEVEL_3) : \
190 ((b) == GLEVEL_3) ? -1 : (int)((b) - (a)))
192 /* Things that really are local to this module */
194 /* Remember what we deduced to be the source language of this psymtab. */
196 static enum language psymtab_language = language_unknown;
202 /* How to parse debugging information for CUR_BFD. */
204 static const struct ecoff_debug_swap *debug_swap;
206 /* Pointers to debugging information for CUR_BFD. */
208 static struct ecoff_debug_info *debug_info;
210 /* Pointer to current file decriptor record, and its index */
215 /* Index of current symbol */
219 /* Note how much "debuggable" this image is. We would like
220 to see at least one FDR with full symbols */
222 static int max_gdbinfo;
223 static int max_glevel;
225 /* When examining .o files, report on undefined symbols */
227 static int n_undef_symbols, n_undef_labels, n_undef_vars, n_undef_procs;
229 /* Pseudo symbol to use when putting stabs into the symbol table. */
231 static char stabs_symbol[] = STABS_SYMBOL;
233 /* Types corresponding to mdebug format bt* basic types. */
235 static struct type *mdebug_type_void;
236 static struct type *mdebug_type_char;
237 static struct type *mdebug_type_short;
238 static struct type *mdebug_type_int_32;
239 #define mdebug_type_int mdebug_type_int_32
240 static struct type *mdebug_type_int_64;
241 static struct type *mdebug_type_long_32;
242 static struct type *mdebug_type_long_64;
243 static struct type *mdebug_type_long_long_64;
244 static struct type *mdebug_type_unsigned_char;
245 static struct type *mdebug_type_unsigned_short;
246 static struct type *mdebug_type_unsigned_int_32;
247 static struct type *mdebug_type_unsigned_int_64;
248 static struct type *mdebug_type_unsigned_long_32;
249 static struct type *mdebug_type_unsigned_long_64;
250 static struct type *mdebug_type_unsigned_long_long_64;
251 static struct type *mdebug_type_adr_32;
252 static struct type *mdebug_type_adr_64;
253 static struct type *mdebug_type_float;
254 static struct type *mdebug_type_double;
255 static struct type *mdebug_type_complex;
256 static struct type *mdebug_type_double_complex;
257 static struct type *mdebug_type_fixed_dec;
258 static struct type *mdebug_type_float_dec;
259 static struct type *mdebug_type_string;
261 /* Types for symbols from files compiled without debugging info. */
263 static struct type *nodebug_func_symbol_type;
264 static struct type *nodebug_var_symbol_type;
266 /* Nonzero if we have seen ecoff debugging info for a file. */
268 static int found_ecoff_debugging_info;
270 /* Forward declarations */
272 static int upgrade_type (int, struct type **, int, union aux_ext *,
275 static void parse_partial_symbols (struct objfile *);
277 static int has_opaque_xref (FDR *, SYMR *);
279 static int cross_ref (int, union aux_ext *, struct type **, enum type_code,
280 char **, int, char *);
282 static struct symbol *new_symbol (char *);
284 static struct type *new_type (char *);
286 static struct block *new_block (int);
288 static struct symtab *new_symtab (char *, int, int, struct objfile *);
290 static struct linetable *new_linetable (int);
292 static struct blockvector *new_bvect (int);
294 static struct type *parse_type (int, union aux_ext *, unsigned int, int *,
297 static struct symbol *mylookup_symbol (char *, struct block *, namespace_enum,
300 static struct block *shrink_block (struct block *, struct symtab *);
302 static void sort_blocks (struct symtab *);
304 static struct partial_symtab *new_psymtab (char *, struct objfile *);
306 static void psymtab_to_symtab_1 (struct partial_symtab *, char *);
308 static void add_block (struct block *, struct symtab *);
310 static void add_symbol (struct symbol *, struct block *);
312 static int add_line (struct linetable *, int, CORE_ADDR, int);
314 static struct linetable *shrink_linetable (struct linetable *);
316 static void handle_psymbol_enumerators (struct objfile *, FDR *, int,
319 static char *mdebug_next_symbol_text (struct objfile *);
321 /* Address bounds for the signal trampoline in inferior, if any */
323 CORE_ADDR sigtramp_address, sigtramp_end;
325 /* Allocate zeroed memory */
328 xzalloc (unsigned int size)
330 void *p = xmalloc (size);
336 /* Exported procedure: Builds a symtab from the PST partial one.
337 Restores the environment in effect when PST was created, delegates
338 most of the work to an ancillary procedure, and sorts
339 and reorders the symtab list at the end */
342 mdebug_psymtab_to_symtab (struct partial_symtab *pst)
350 printf_filtered ("Reading in symbols for %s...", pst->filename);
351 gdb_flush (gdb_stdout);
354 next_symbol_text_func = mdebug_next_symbol_text;
356 psymtab_to_symtab_1 (pst, pst->filename);
358 /* Match with global symbols. This only needs to be done once,
359 after all of the symtabs and dependencies have been read in. */
360 scan_file_globals (pst->objfile);
363 printf_filtered ("done.\n");
366 /* File-level interface functions */
368 /* Find a file descriptor given its index RF relative to a file CF */
371 get_rfd (int cf, int rf)
377 fdrs = debug_info->fdr;
379 /* Object files do not have the RFD table, all refs are absolute */
382 (*debug_swap->swap_rfd_in) (cur_bfd,
383 ((char *) debug_info->external_rfd
385 * debug_swap->external_rfd_size)),
390 /* Return a safer print NAME for a file descriptor */
396 return "<stripped file>";
399 return debug_info->ss + f->issBase + f->rss;
403 /* Read in and parse the symtab of the file OBJFILE. Symbols from
404 different sections are relocated via the SECTION_OFFSETS. */
407 mdebug_build_psymtabs (struct objfile *objfile,
408 const struct ecoff_debug_swap *swap,
409 struct ecoff_debug_info *info)
411 cur_bfd = objfile->obfd;
415 stabsread_new_init ();
416 buildsym_new_init ();
417 free_header_files ();
418 init_header_files ();
420 /* Make sure all the FDR information is swapped in. */
421 if (info->fdr == (FDR *) NULL)
427 info->fdr = (FDR *) obstack_alloc (&objfile->psymbol_obstack,
428 (info->symbolic_header.ifdMax
430 fdr_src = info->external_fdr;
432 + info->symbolic_header.ifdMax * swap->external_fdr_size);
434 for (; fdr_src < fdr_end; fdr_src += swap->external_fdr_size, fdr_ptr++)
435 (*swap->swap_fdr_in) (objfile->obfd, fdr_src, fdr_ptr);
438 parse_partial_symbols (objfile);
441 /* Check to make sure file was compiled with -g. If not, warn the
442 user of this limitation. */
443 if (compare_glevel (max_glevel, GLEVEL_2) < 0)
445 if (max_gdbinfo == 0)
446 printf_unfiltered ("\n%s not compiled with -g, debugging support is limited.\n",
448 printf_unfiltered ("You should compile with -g2 or -g3 for best debugging support.\n");
449 gdb_flush (gdb_stdout);
454 /* Local utilities */
456 /* Map of FDR indexes to partial symtabs */
460 struct partial_symtab *pst; /* the psymtab proper */
461 long n_globals; /* exported globals (external symbols) */
462 long globals_offset; /* cumulative */
466 /* Utility stack, used to nest procedures and blocks properly.
467 It is a doubly linked list, to avoid too many alloc/free.
468 Since we might need it quite a few times it is NOT deallocated
471 static struct parse_stack
473 struct parse_stack *next, *prev;
474 struct symtab *cur_st; /* Current symtab. */
475 struct block *cur_block; /* Block in it. */
477 /* What are we parsing. stFile, or stBlock are for files and
478 blocks. stProc or stStaticProc means we have seen the start of a
479 procedure, but not the start of the block within in. When we see
480 the start of that block, we change it to stNil, without pushing a
481 new block, i.e. stNil means both a procedure and a block. */
485 int maxsyms; /* Max symbols in this block. */
486 struct type *cur_type; /* Type we parse fields for. */
487 int cur_field; /* Field number in cur_type. */
488 CORE_ADDR procadr; /* Start addres of this procedure */
489 int numargs; /* Its argument count */
492 *top_stack; /* Top stack ptr */
495 /* Enter a new lexical context */
498 push_parse_stack (void)
500 struct parse_stack *new;
502 /* Reuse frames if possible */
503 if (top_stack && top_stack->prev)
504 new = top_stack->prev;
506 new = (struct parse_stack *) xzalloc (sizeof (struct parse_stack));
507 /* Initialize new frame with previous content */
510 register struct parse_stack *prev = new->prev;
513 top_stack->prev = new;
515 new->next = top_stack;
520 /* Exit a lexical context */
523 pop_parse_stack (void)
528 top_stack = top_stack->next;
532 /* Cross-references might be to things we haven't looked at
533 yet, e.g. type references. To avoid too many type
534 duplications we keep a quick fixup table, an array
535 of lists of references indexed by file descriptor */
537 struct mdebug_pending
539 struct mdebug_pending *next; /* link */
540 char *s; /* the unswapped symbol */
541 struct type *t; /* its partial type descriptor */
545 /* The pending information is kept for an entire object file, and used
546 to be in the sym_private field. I took it out when I split
547 mdebugread from mipsread, because this might not be the only type
548 of symbols read from an object file. Instead, we allocate the
549 pending information table when we create the partial symbols, and
550 we store a pointer to the single table in each psymtab. */
552 static struct mdebug_pending **pending_list;
554 /* Check whether we already saw symbol SH in file FH */
556 static struct mdebug_pending *
557 is_pending_symbol (FDR *fh, char *sh)
559 int f_idx = fh - debug_info->fdr;
560 register struct mdebug_pending *p;
562 /* Linear search is ok, list is typically no more than 10 deep */
563 for (p = pending_list[f_idx]; p; p = p->next)
569 /* Add a new symbol SH of type T */
572 add_pending (FDR *fh, char *sh, struct type *t)
574 int f_idx = fh - debug_info->fdr;
575 struct mdebug_pending *p = is_pending_symbol (fh, sh);
577 /* Make sure we do not make duplicates */
580 p = ((struct mdebug_pending *)
581 obstack_alloc (¤t_objfile->psymbol_obstack,
582 sizeof (struct mdebug_pending)));
585 p->next = pending_list[f_idx];
586 pending_list[f_idx] = p;
591 /* Parsing Routines proper. */
593 /* Parse a single symbol. Mostly just make up a GDB symbol for it.
594 For blocks, procedures and types we open a new lexical context.
595 This is basically just a big switch on the symbol's type. Argument
596 AX is the base pointer of aux symbols for this file (fh->iauxBase).
597 EXT_SH points to the unswapped symbol, which is needed for struct,
598 union, etc., types; it is NULL for an EXTR. BIGEND says whether
599 aux symbols are big-endian or little-endian. Return count of
600 SYMR's handled (normally one). */
603 parse_symbol (SYMR *sh, union aux_ext *ax, char *ext_sh, int bigend,
604 struct section_offsets *section_offsets, struct objfile *objfile)
606 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
607 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
611 struct mdebug_pending *pend;
615 enum address_class class;
617 long svalue = sh->value;
620 if (ext_sh == (char *) NULL)
621 name = debug_info->ssext + sh->iss;
623 name = debug_info->ss + cur_fdr->issBase + sh->iss;
629 /* Do not relocate relative values.
630 The value of a stEnd symbol is the displacement from the
631 corresponding start symbol value.
632 The value of a stBlock symbol is the displacement from the
633 procedure address. */
634 if (sh->st != stEnd && sh->st != stBlock)
635 sh->value += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
642 sh->value += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
646 sh->value += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
655 case stGlobal: /* external symbol, goes into global block */
657 b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
659 s = new_symbol (name);
660 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
663 case stStatic: /* static data, goes into current block. */
665 b = top_stack->cur_block;
666 s = new_symbol (name);
667 if (SC_IS_COMMON (sh->sc))
669 /* It is a FORTRAN common block. At least for SGI Fortran the
670 address is not in the symbol; we need to fix it later in
671 scan_file_globals. */
672 int bucket = hashname (SYMBOL_NAME (s));
673 SYMBOL_VALUE_CHAIN (s) = global_sym_chain[bucket];
674 global_sym_chain[bucket] = s;
677 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
680 case stLocal: /* local variable, goes into current block */
681 if (sh->sc == scRegister)
683 class = LOC_REGISTER;
684 svalue = ECOFF_REG_TO_REGNUM (svalue);
688 b = top_stack->cur_block;
689 s = new_symbol (name);
690 SYMBOL_VALUE (s) = svalue;
692 data: /* Common code for symbols describing data */
693 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
694 SYMBOL_CLASS (s) = class;
697 /* Type could be missing if file is compiled without debugging info. */
698 if (SC_IS_UNDEF (sh->sc)
699 || sh->sc == scNil || sh->index == indexNil)
700 SYMBOL_TYPE (s) = nodebug_var_symbol_type;
702 SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
703 /* Value of a data symbol is its memory address */
706 case stParam: /* arg to procedure, goes into current block */
708 found_ecoff_debugging_info = 1;
709 top_stack->numargs++;
711 /* Special GNU C++ name. */
712 if (is_cplus_marker (name[0]) && name[1] == 't' && name[2] == 0)
713 name = "this"; /* FIXME, not alloc'd in obstack */
714 s = new_symbol (name);
716 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
720 /* Pass by value in register. */
721 SYMBOL_CLASS (s) = LOC_REGPARM;
722 svalue = ECOFF_REG_TO_REGNUM (svalue);
725 /* Pass by reference on stack. */
726 SYMBOL_CLASS (s) = LOC_REF_ARG;
729 /* Pass by reference in register. */
730 SYMBOL_CLASS (s) = LOC_REGPARM_ADDR;
731 svalue = ECOFF_REG_TO_REGNUM (svalue);
734 /* Pass by value on stack. */
735 SYMBOL_CLASS (s) = LOC_ARG;
738 SYMBOL_VALUE (s) = svalue;
739 SYMBOL_TYPE (s) = parse_type (cur_fd, ax, sh->index, 0, bigend, name);
740 add_symbol (s, top_stack->cur_block);
743 case stLabel: /* label, goes into current block */
744 s = new_symbol (name);
745 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE; /* so that it can be used */
746 SYMBOL_CLASS (s) = LOC_LABEL; /* but not misused */
747 SYMBOL_VALUE_ADDRESS (s) = (CORE_ADDR) sh->value;
748 SYMBOL_TYPE (s) = mdebug_type_int;
749 add_symbol (s, top_stack->cur_block);
752 case stProc: /* Procedure, usually goes into global block */
753 case stStaticProc: /* Static procedure, goes into current block */
754 s = new_symbol (name);
755 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
756 SYMBOL_CLASS (s) = LOC_BLOCK;
757 /* Type of the return value */
758 if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
762 t = parse_type (cur_fd, ax, sh->index + 1, 0, bigend, name);
763 if (STREQ (name, "malloc") && TYPE_CODE (t) == TYPE_CODE_VOID)
765 /* I don't know why, but, at least under Alpha GNU/Linux,
766 when linking against a malloc without debugging
767 symbols, its read as a function returning void---this
768 is bad because it means we cannot call functions with
769 string arguments interactively; i.e., "call
770 printf("howdy\n")" would fail with the error message
771 "program has no memory available". To avoid this, we
772 patch up the type and make it void*
773 instead. (davidm@azstarnet.com)
775 t = make_pointer_type (t, NULL);
778 b = top_stack->cur_block;
779 if (sh->st == stProc)
781 struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
782 /* The next test should normally be true, but provides a
783 hook for nested functions (which we don't want to make
785 if (b == BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK))
786 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
787 /* Irix 5 sometimes has duplicate names for the same
788 function. We want to add such names up at the global
789 level, not as a nested function. */
790 else if (sh->value == top_stack->procadr)
791 b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
795 /* Make a type for the procedure itself */
796 SYMBOL_TYPE (s) = lookup_function_type (t);
798 /* All functions in C++ have prototypes. For C we don't have enough
799 information in the debug info. */
800 if (SYMBOL_LANGUAGE (s) == language_cplus)
801 TYPE_FLAGS (SYMBOL_TYPE (s)) |= TYPE_FLAG_PROTOTYPED;
803 /* Create and enter a new lexical context */
804 b = new_block (top_stack->maxsyms);
805 SYMBOL_BLOCK_VALUE (s) = b;
806 BLOCK_FUNCTION (b) = s;
807 BLOCK_START (b) = BLOCK_END (b) = sh->value;
808 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
809 add_block (b, top_stack->cur_st);
811 /* Not if we only have partial info */
812 if (SC_IS_UNDEF (sh->sc) || sh->sc == scNil)
816 top_stack->cur_block = b;
817 top_stack->blocktype = sh->st;
818 top_stack->cur_type = SYMBOL_TYPE (s);
819 top_stack->cur_field = -1;
820 top_stack->procadr = sh->value;
821 top_stack->numargs = 0;
824 /* Beginning of code for structure, union, and enum definitions.
825 They all share a common set of local variables, defined here. */
827 enum type_code type_code;
833 case stStruct: /* Start a block defining a struct type */
834 type_code = TYPE_CODE_STRUCT;
835 goto structured_common;
837 case stUnion: /* Start a block defining a union type */
838 type_code = TYPE_CODE_UNION;
839 goto structured_common;
841 case stEnum: /* Start a block defining an enum type */
842 type_code = TYPE_CODE_ENUM;
843 goto structured_common;
845 case stBlock: /* Either a lexical block, or some type */
846 if (sh->sc != scInfo && !SC_IS_COMMON (sh->sc))
847 goto case_stBlock_code; /* Lexical block */
849 type_code = TYPE_CODE_UNDEF; /* We have a type. */
851 /* Common code for handling struct, union, enum, and/or as-yet-
852 unknown-type blocks of info about structured data. `type_code'
853 has been set to the proper TYPE_CODE, if we know it. */
855 found_ecoff_debugging_info = 1;
857 top_stack->blocktype = stBlock;
859 /* First count the number of fields and the highest value. */
862 for (ext_tsym = ext_sh + external_sym_size;
864 ext_tsym += external_sym_size)
868 (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);
873 /* C++ encodes class types as structures where there the
874 methods are encoded as stProc. The scope of stProc
875 symbols also ends with stEnd, thus creating a risk of
876 taking the wrong stEnd symbol record as the end of
877 the current struct, which would cause GDB to undercount
878 the real number of fields in this struct. To make sure
879 we really reached the right stEnd symbol record, we
880 check the associated name, and match it against the
881 struct name. Since method names are mangled while
882 the class name is not, there is no risk of having a
883 method whose name is identical to the class name
884 (in particular constructor method names are different
885 from the class name). There is therefore no risk that
886 this check stops the count on the StEnd of a method. */
887 if (strcmp (debug_info->ss + cur_fdr->issBase + tsym.iss,
893 if (nfields == 0 && type_code == TYPE_CODE_UNDEF)
895 /* If the type of the member is Nil (or Void),
896 without qualifiers, assume the tag is an
898 Alpha cc -migrate enums are recognized by a zero
899 index and a zero symbol value.
900 DU 4.0 cc enums are recognized by a member type of
901 btEnum without qualifiers and a zero symbol value. */
902 if (tsym.index == indexNil
903 || (tsym.index == 0 && sh->value == 0))
904 type_code = TYPE_CODE_ENUM;
907 (*debug_swap->swap_tir_in) (bigend,
908 &ax[tsym.index].a_ti,
910 if ((tir.bt == btNil || tir.bt == btVoid
911 || (tir.bt == btEnum && sh->value == 0))
913 type_code = TYPE_CODE_ENUM;
917 if (tsym.value > max_value)
918 max_value = tsym.value;
927 /* This is a no-op; is it trying to tell us something
928 we should be checking? */
929 if (tsym.sc == scVariant); /*UNIMPLEMENTED */
933 /* This is something like a struct within a
934 struct. Skip over the fields of the inner
935 struct. The -1 is because the for loop will
936 increment ext_tsym. */
937 ext_tsym = ((char *) debug_info->external_sym
938 + ((cur_fdr->isymBase + tsym.index - 1)
939 * external_sym_size));
945 /* mips cc puts out a typedef for struct x if it is not yet
946 defined when it encounters
947 struct y { struct x *xp; };
952 /* Irix5 cc puts out a stIndirect for struct x if it is not
953 yet defined when it encounters
954 struct y { struct x *xp; };
959 complaint (&symfile_complaints,
960 "declaration block contains unhandled symbol type %d",
966 /* In an stBlock, there is no way to distinguish structs,
967 unions, and enums at this point. This is a bug in the
968 original design (that has been fixed with the recent
969 addition of the stStruct, stUnion, and stEnum symbol
970 types.) The way you can tell is if/when you see a variable
971 or field of that type. In that case the variable's type
972 (in the AUX table) says if the type is struct, union, or
973 enum, and points back to the stBlock here. So you can
974 patch the tag kind up later - but only if there actually is
975 a variable or field of that type.
977 So until we know for sure, we will guess at this point.
979 If the first member has index==indexNil or a void type,
980 assume we have an enumeration.
981 Otherwise, if there is more than one member, and all
982 the members have offset 0, assume we have a union.
983 Otherwise, assume we have a struct.
985 The heuristic could guess wrong in the case of of an
986 enumeration with no members or a union with one (or zero)
987 members, or when all except the last field of a struct have
988 width zero. These are uncommon and/or illegal situations,
989 and in any case guessing wrong probably doesn't matter
992 But if we later do find out we were wrong, we fixup the tag
993 kind. Members of an enumeration must be handled
994 differently from struct/union fields, and that is harder to
995 patch up, but luckily we shouldn't need to. (If there are
996 any enumeration members, we can tell for sure it's an enum
999 if (type_code == TYPE_CODE_UNDEF)
1001 if (nfields > 1 && max_value == 0)
1002 type_code = TYPE_CODE_UNION;
1004 type_code = TYPE_CODE_STRUCT;
1007 /* Create a new type or use the pending type. */
1008 pend = is_pending_symbol (cur_fdr, ext_sh);
1009 if (pend == (struct mdebug_pending *) NULL)
1011 t = new_type (NULL);
1012 add_pending (cur_fdr, ext_sh, t);
1017 /* Do not set the tag name if it is a compiler generated tag name
1018 (.Fxx or .xxfake or empty) for unnamed struct/union/enums.
1019 Alpha cc puts out an sh->iss of zero for those. */
1020 if (sh->iss == 0 || name[0] == '.' || name[0] == '\0')
1021 TYPE_TAG_NAME (t) = NULL;
1023 TYPE_TAG_NAME (t) = obconcat (¤t_objfile->symbol_obstack,
1026 TYPE_CODE (t) = type_code;
1027 TYPE_LENGTH (t) = sh->value;
1028 TYPE_NFIELDS (t) = nfields;
1029 TYPE_FIELDS (t) = f = ((struct field *)
1031 nfields * sizeof (struct field)));
1033 if (type_code == TYPE_CODE_ENUM)
1035 int unsigned_enum = 1;
1037 /* This is a non-empty enum. */
1039 /* DEC c89 has the number of enumerators in the sh.value field,
1040 not the type length, so we have to compensate for that
1041 incompatibility quirk.
1042 This might do the wrong thing for an enum with one or two
1043 enumerators and gcc -gcoff -fshort-enums, but these cases
1044 are hopefully rare enough.
1045 Alpha cc -migrate has a sh.value field of zero, we adjust
1047 if (TYPE_LENGTH (t) == TYPE_NFIELDS (t)
1048 || TYPE_LENGTH (t) == 0)
1049 TYPE_LENGTH (t) = TARGET_INT_BIT / HOST_CHAR_BIT;
1050 for (ext_tsym = ext_sh + external_sym_size;
1052 ext_tsym += external_sym_size)
1055 struct symbol *enum_sym;
1057 (*swap_sym_in) (cur_bfd, ext_tsym, &tsym);
1059 if (tsym.st != stMember)
1062 FIELD_BITPOS (*f) = tsym.value;
1063 FIELD_TYPE (*f) = t;
1064 FIELD_NAME (*f) = debug_info->ss + cur_fdr->issBase + tsym.iss;
1065 FIELD_BITSIZE (*f) = 0;
1066 FIELD_STATIC_KIND (*f) = 0;
1068 enum_sym = ((struct symbol *)
1069 obstack_alloc (¤t_objfile->symbol_obstack,
1070 sizeof (struct symbol)));
1071 memset (enum_sym, 0, sizeof (struct symbol));
1072 SYMBOL_NAME (enum_sym) =
1073 obsavestring (f->name, strlen (f->name),
1074 ¤t_objfile->symbol_obstack);
1075 SYMBOL_CLASS (enum_sym) = LOC_CONST;
1076 SYMBOL_TYPE (enum_sym) = t;
1077 SYMBOL_NAMESPACE (enum_sym) = VAR_NAMESPACE;
1078 SYMBOL_VALUE (enum_sym) = tsym.value;
1079 if (SYMBOL_VALUE (enum_sym) < 0)
1081 add_symbol (enum_sym, top_stack->cur_block);
1083 /* Skip the stMembers that we've handled. */
1088 TYPE_FLAGS (t) |= TYPE_FLAG_UNSIGNED;
1090 /* make this the current type */
1091 top_stack->cur_type = t;
1092 top_stack->cur_field = 0;
1094 /* Do not create a symbol for alpha cc unnamed structs. */
1098 /* gcc puts out an empty struct for an opaque struct definitions,
1099 do not create a symbol for it either. */
1100 if (TYPE_NFIELDS (t) == 0)
1102 TYPE_FLAGS (t) |= TYPE_FLAG_STUB;
1106 s = new_symbol (name);
1107 SYMBOL_NAMESPACE (s) = STRUCT_NAMESPACE;
1108 SYMBOL_CLASS (s) = LOC_TYPEDEF;
1109 SYMBOL_VALUE (s) = 0;
1110 SYMBOL_TYPE (s) = t;
1111 add_symbol (s, top_stack->cur_block);
1114 /* End of local variables shared by struct, union, enum, and
1115 block (as yet unknown struct/union/enum) processing. */
1119 found_ecoff_debugging_info = 1;
1120 /* beginnning of (code) block. Value of symbol
1121 is the displacement from procedure start */
1122 push_parse_stack ();
1124 /* Do not start a new block if this is the outermost block of a
1125 procedure. This allows the LOC_BLOCK symbol to point to the
1126 block with the local variables, so funcname::var works. */
1127 if (top_stack->blocktype == stProc
1128 || top_stack->blocktype == stStaticProc)
1130 top_stack->blocktype = stNil;
1134 top_stack->blocktype = stBlock;
1135 b = new_block (top_stack->maxsyms);
1136 BLOCK_START (b) = sh->value + top_stack->procadr;
1137 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
1138 top_stack->cur_block = b;
1139 add_block (b, top_stack->cur_st);
1142 case stEnd: /* end (of anything) */
1143 if (sh->sc == scInfo || SC_IS_COMMON (sh->sc))
1145 /* Finished with type */
1146 top_stack->cur_type = 0;
1148 else if (sh->sc == scText &&
1149 (top_stack->blocktype == stProc ||
1150 top_stack->blocktype == stStaticProc))
1152 /* Finished with procedure */
1153 struct blockvector *bv = BLOCKVECTOR (top_stack->cur_st);
1154 struct mips_extra_func_info *e;
1156 struct type *ftype = top_stack->cur_type;
1159 BLOCK_END (top_stack->cur_block) += sh->value; /* size */
1161 /* Make up special symbol to contain procedure specific info */
1162 s = new_symbol (MIPS_EFI_SYMBOL_NAME);
1163 SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
1164 SYMBOL_CLASS (s) = LOC_CONST;
1165 SYMBOL_TYPE (s) = mdebug_type_void;
1166 e = ((struct mips_extra_func_info *)
1167 obstack_alloc (¤t_objfile->symbol_obstack,
1168 sizeof (struct mips_extra_func_info)));
1169 memset (e, 0, sizeof (struct mips_extra_func_info));
1170 SYMBOL_VALUE (s) = (long) e;
1171 e->numargs = top_stack->numargs;
1172 e->pdr.framereg = -1;
1173 add_symbol (s, top_stack->cur_block);
1175 /* Reallocate symbols, saving memory */
1176 b = shrink_block (top_stack->cur_block, top_stack->cur_st);
1178 /* f77 emits proc-level with address bounds==[0,0],
1179 So look for such child blocks, and patch them. */
1180 for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
1182 struct block *b_bad = BLOCKVECTOR_BLOCK (bv, i);
1183 if (BLOCK_SUPERBLOCK (b_bad) == b
1184 && BLOCK_START (b_bad) == top_stack->procadr
1185 && BLOCK_END (b_bad) == top_stack->procadr)
1187 BLOCK_START (b_bad) = BLOCK_START (b);
1188 BLOCK_END (b_bad) = BLOCK_END (b);
1192 if (TYPE_NFIELDS (ftype) <= 0)
1194 /* No parameter type information is recorded with the function's
1195 type. Set that from the type of the parameter symbols. */
1196 int nparams = top_stack->numargs;
1202 TYPE_NFIELDS (ftype) = nparams;
1203 TYPE_FIELDS (ftype) = (struct field *)
1204 TYPE_ALLOC (ftype, nparams * sizeof (struct field));
1206 for (i = iparams = 0; iparams < nparams; i++)
1208 sym = BLOCK_SYM (b, i);
1209 switch (SYMBOL_CLASS (sym))
1214 case LOC_REGPARM_ADDR:
1215 TYPE_FIELD_TYPE (ftype, iparams) = SYMBOL_TYPE (sym);
1216 TYPE_FIELD_ARTIFICIAL (ftype, iparams) = 0;
1226 else if (sh->sc == scText && top_stack->blocktype == stBlock)
1228 /* End of (code) block. The value of the symbol is the
1229 displacement from the procedure`s start address of the
1230 end of this block. */
1231 BLOCK_END (top_stack->cur_block) = sh->value + top_stack->procadr;
1232 shrink_block (top_stack->cur_block, top_stack->cur_st);
1234 else if (sh->sc == scText && top_stack->blocktype == stNil)
1236 /* End of outermost block. Pop parse stack and ignore. The
1237 following stEnd of stProc will take care of the block. */
1240 else if (sh->sc == scText && top_stack->blocktype == stFile)
1242 /* End of file. Pop parse stack and ignore. Higher
1243 level code deals with this. */
1247 complaint (&symfile_complaints,
1248 "stEnd with storage class %d not handled", sh->sc);
1250 pop_parse_stack (); /* restore previous lexical context */
1253 case stMember: /* member of struct or union */
1254 f = &TYPE_FIELDS (top_stack->cur_type)[top_stack->cur_field++];
1255 FIELD_NAME (*f) = name;
1256 FIELD_BITPOS (*f) = sh->value;
1258 FIELD_TYPE (*f) = parse_type (cur_fd, ax, sh->index, &bitsize, bigend, name);
1259 FIELD_BITSIZE (*f) = bitsize;
1260 FIELD_STATIC_KIND (*f) = 0;
1263 case stIndirect: /* forward declaration on Irix5 */
1264 /* Forward declarations from Irix5 cc are handled by cross_ref,
1268 case stTypedef: /* type definition */
1269 found_ecoff_debugging_info = 1;
1271 /* Typedefs for forward declarations and opaque structs from alpha cc
1272 are handled by cross_ref, skip them. */
1276 /* Parse the type or use the pending type. */
1277 pend = is_pending_symbol (cur_fdr, ext_sh);
1278 if (pend == (struct mdebug_pending *) NULL)
1280 t = parse_type (cur_fd, ax, sh->index, (int *) NULL, bigend, name);
1281 add_pending (cur_fdr, ext_sh, t);
1286 /* mips cc puts out a typedef with the name of the struct for forward
1287 declarations. These should not go into the symbol table and
1288 TYPE_NAME should not be set for them.
1289 They can't be distinguished from an intentional typedef to
1290 the same name however:
1292 struct x { int ix; int jx; };
1296 struct xx {int ixx; int jxx; };
1297 generates a cross referencing stTypedef for x and xx.
1298 The user visible effect of this is that the type of a pointer
1299 to struct foo sometimes is given as `foo *' instead of `struct foo *'.
1300 The problem is fixed with alpha cc and Irix5 cc. */
1302 /* However if the typedef cross references to an opaque aggregate, it
1303 is safe to omit it from the symbol table. */
1305 if (has_opaque_xref (cur_fdr, sh))
1307 s = new_symbol (name);
1308 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
1309 SYMBOL_CLASS (s) = LOC_TYPEDEF;
1310 SYMBOL_BLOCK_VALUE (s) = top_stack->cur_block;
1311 SYMBOL_TYPE (s) = t;
1312 add_symbol (s, top_stack->cur_block);
1314 /* Incomplete definitions of structs should not get a name. */
1315 if (TYPE_NAME (SYMBOL_TYPE (s)) == NULL
1316 && (TYPE_NFIELDS (SYMBOL_TYPE (s)) != 0
1317 || (TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_STRUCT
1318 && TYPE_CODE (SYMBOL_TYPE (s)) != TYPE_CODE_UNION)))
1320 if (TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_PTR
1321 || TYPE_CODE (SYMBOL_TYPE (s)) == TYPE_CODE_FUNC)
1323 /* If we are giving a name to a type such as "pointer to
1324 foo" or "function returning foo", we better not set
1325 the TYPE_NAME. If the program contains "typedef char
1326 *caddr_t;", we don't want all variables of type char
1327 * to print as caddr_t. This is not just a
1328 consequence of GDB's type management; CC and GCC (at
1329 least through version 2.4) both output variables of
1330 either type char * or caddr_t with the type
1331 refering to the stTypedef symbol for caddr_t. If a future
1332 compiler cleans this up it GDB is not ready for it
1333 yet, but if it becomes ready we somehow need to
1334 disable this check (without breaking the PCC/GCC2.4
1339 Fortunately, this check seems not to be necessary
1340 for anything except pointers or functions. */
1343 TYPE_NAME (SYMBOL_TYPE (s)) = SYMBOL_NAME (s);
1347 case stFile: /* file name */
1348 push_parse_stack ();
1349 top_stack->blocktype = sh->st;
1352 /* I`ve never seen these for C */
1354 break; /* register relocation */
1356 break; /* forwarding address */
1358 break; /* constant */
1360 complaint (&symfile_complaints, "unknown symbol type 0x%x", sh->st);
1367 /* Parse the type information provided in the raw AX entries for
1368 the symbol SH. Return the bitfield size in BS, in case.
1369 We must byte-swap the AX entries before we use them; BIGEND says whether
1370 they are big-endian or little-endian (from fh->fBigendian). */
1372 static struct type *
1373 parse_type (int fd, union aux_ext *ax, unsigned int aux_index, int *bs,
1374 int bigend, char *sym_name)
1376 /* Null entries in this map are treated specially */
1377 static struct type **map_bt[] =
1379 &mdebug_type_void, /* btNil */
1380 &mdebug_type_adr_32, /* btAdr */
1381 &mdebug_type_char, /* btChar */
1382 &mdebug_type_unsigned_char, /* btUChar */
1383 &mdebug_type_short, /* btShort */
1384 &mdebug_type_unsigned_short, /* btUShort */
1385 &mdebug_type_int_32, /* btInt */
1386 &mdebug_type_unsigned_int_32, /* btUInt */
1387 &mdebug_type_long_32, /* btLong */
1388 &mdebug_type_unsigned_long_32, /* btULong */
1389 &mdebug_type_float, /* btFloat */
1390 &mdebug_type_double, /* btDouble */
1397 &mdebug_type_complex, /* btComplex */
1398 &mdebug_type_double_complex, /* btDComplex */
1400 &mdebug_type_fixed_dec, /* btFixedDec */
1401 &mdebug_type_float_dec, /* btFloatDec */
1402 &mdebug_type_string, /* btString */
1405 &mdebug_type_void, /* btVoid */
1406 0, /* DEC C++: Pointer to member */
1407 0, /* DEC C++: Virtual function table */
1408 0, /* DEC C++: Class (Record) */
1409 &mdebug_type_long_64, /* btLong64 */
1410 &mdebug_type_unsigned_long_64, /* btULong64 */
1411 &mdebug_type_long_long_64, /* btLongLong64 */
1412 &mdebug_type_unsigned_long_long_64, /* btULongLong64 */
1413 &mdebug_type_adr_64, /* btAdr64 */
1414 &mdebug_type_int_64, /* btInt64 */
1415 &mdebug_type_unsigned_int_64, /* btUInt64 */
1419 struct type *tp = 0;
1420 enum type_code type_code = TYPE_CODE_UNDEF;
1422 /* Handle undefined types, they have indexNil. */
1423 if (aux_index == indexNil)
1424 return mdebug_type_int;
1426 /* Handle corrupt aux indices. */
1427 if (aux_index >= (debug_info->fdr + fd)->caux)
1429 index_complaint (sym_name);
1430 return mdebug_type_int;
1434 /* Use aux as a type information record, map its basic type. */
1435 (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
1436 if (t->bt >= (sizeof (map_bt) / sizeof (*map_bt)))
1438 basic_type_complaint (t->bt, sym_name);
1439 return mdebug_type_int;
1443 tp = *map_bt[t->bt];
1448 /* Cannot use builtin types -- build our own */
1452 type_code = TYPE_CODE_STRUCT;
1455 type_code = TYPE_CODE_UNION;
1458 type_code = TYPE_CODE_ENUM;
1461 type_code = TYPE_CODE_RANGE;
1464 type_code = TYPE_CODE_SET;
1467 /* alpha cc -migrate uses this for typedefs. The true type will
1468 be obtained by crossreferencing below. */
1469 type_code = TYPE_CODE_ERROR;
1472 /* alpha cc uses this for typedefs. The true type will be
1473 obtained by crossreferencing below. */
1474 type_code = TYPE_CODE_ERROR;
1477 basic_type_complaint (t->bt, sym_name);
1478 return mdebug_type_int;
1482 /* Move on to next aux */
1487 int width = AUX_GET_WIDTH (bigend, ax);
1489 /* Inhibit core dumps with some cfront generated objects that
1491 if (bs == (int *) NULL)
1493 /* Alpha cc -migrate encodes char and unsigned char types
1494 as short and unsigned short types with a field width of 8.
1495 Enum types also have a field width which we ignore for now. */
1496 if (t->bt == btShort && width == 8)
1497 tp = mdebug_type_char;
1498 else if (t->bt == btUShort && width == 8)
1499 tp = mdebug_type_unsigned_char;
1500 else if (t->bt == btEnum)
1503 complaint (&symfile_complaints, "can't handle TIR fBitfield for %s",
1511 /* A btIndirect entry cross references to an aux entry containing
1513 if (t->bt == btIndirect)
1520 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);
1522 if (rn->rfd == 0xfff)
1524 rf = AUX_GET_ISYM (bigend, ax);
1532 complaint (&symfile_complaints,
1533 "unable to cross ref btIndirect for %s", sym_name);
1534 return mdebug_type_int;
1536 xref_fh = get_rfd (fd, rf);
1537 xref_fd = xref_fh - debug_info->fdr;
1538 tp = parse_type (xref_fd, debug_info->external_aux + xref_fh->iauxBase,
1539 rn->index, (int *) NULL, xref_fh->fBigendian, sym_name);
1542 /* All these types really point to some (common) MIPS type
1543 definition, and only the type-qualifiers fully identify
1544 them. We'll make the same effort at sharing. */
1545 if (t->bt == btStruct ||
1549 /* btSet (I think) implies that the name is a tag name, not a typedef
1550 name. This apparently is a MIPS extension for C sets. */
1555 /* Try to cross reference this type, build new type on failure. */
1556 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1557 if (tp == (struct type *) NULL)
1558 tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
1560 /* DEC c89 produces cross references to qualified aggregate types,
1561 dereference them. */
1562 while (TYPE_CODE (tp) == TYPE_CODE_PTR
1563 || TYPE_CODE (tp) == TYPE_CODE_ARRAY)
1564 tp = TYPE_TARGET_TYPE (tp);
1566 /* Make sure that TYPE_CODE(tp) has an expected type code.
1567 Any type may be returned from cross_ref if file indirect entries
1569 if (TYPE_CODE (tp) != TYPE_CODE_STRUCT
1570 && TYPE_CODE (tp) != TYPE_CODE_UNION
1571 && TYPE_CODE (tp) != TYPE_CODE_ENUM)
1573 unexpected_type_code_complaint (sym_name);
1578 /* Usually, TYPE_CODE(tp) is already type_code. The main
1579 exception is if we guessed wrong re struct/union/enum.
1580 But for struct vs. union a wrong guess is harmless, so
1581 don't complain(). */
1582 if ((TYPE_CODE (tp) == TYPE_CODE_ENUM
1583 && type_code != TYPE_CODE_ENUM)
1584 || (TYPE_CODE (tp) != TYPE_CODE_ENUM
1585 && type_code == TYPE_CODE_ENUM))
1587 bad_tag_guess_complaint (sym_name);
1590 if (TYPE_CODE (tp) != type_code)
1592 TYPE_CODE (tp) = type_code;
1595 /* Do not set the tag name if it is a compiler generated tag name
1596 (.Fxx or .xxfake or empty) for unnamed struct/union/enums. */
1597 if (name[0] == '.' || name[0] == '\0')
1598 TYPE_TAG_NAME (tp) = NULL;
1599 else if (TYPE_TAG_NAME (tp) == NULL
1600 || !STREQ (TYPE_TAG_NAME (tp), name))
1601 TYPE_TAG_NAME (tp) = obsavestring (name, strlen (name),
1602 ¤t_objfile->type_obstack);
1606 /* All these types really point to some (common) MIPS type
1607 definition, and only the type-qualifiers fully identify
1608 them. We'll make the same effort at sharing.
1609 FIXME: We are not doing any guessing on range types. */
1610 if (t->bt == btRange)
1614 /* Try to cross reference this type, build new type on failure. */
1615 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1616 if (tp == (struct type *) NULL)
1617 tp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
1619 /* Make sure that TYPE_CODE(tp) has an expected type code.
1620 Any type may be returned from cross_ref if file indirect entries
1622 if (TYPE_CODE (tp) != TYPE_CODE_RANGE)
1624 unexpected_type_code_complaint (sym_name);
1628 /* Usually, TYPE_CODE(tp) is already type_code. The main
1629 exception is if we guessed wrong re struct/union/enum. */
1630 if (TYPE_CODE (tp) != type_code)
1632 bad_tag_guess_complaint (sym_name);
1633 TYPE_CODE (tp) = type_code;
1635 if (TYPE_NAME (tp) == NULL || !STREQ (TYPE_NAME (tp), name))
1636 TYPE_NAME (tp) = obsavestring (name, strlen (name),
1637 ¤t_objfile->type_obstack);
1640 if (t->bt == btTypedef)
1644 /* Try to cross reference this type, it should succeed. */
1645 ax += cross_ref (fd, ax, &tp, type_code, &name, bigend, sym_name);
1646 if (tp == (struct type *) NULL)
1648 complaint (&symfile_complaints,
1649 "unable to cross ref btTypedef for %s", sym_name);
1650 tp = mdebug_type_int;
1654 /* Deal with range types */
1655 if (t->bt == btRange)
1657 TYPE_NFIELDS (tp) = 2;
1658 TYPE_FIELDS (tp) = ((struct field *)
1659 TYPE_ALLOC (tp, 2 * sizeof (struct field)));
1660 TYPE_FIELD_NAME (tp, 0) = obsavestring ("Low", strlen ("Low"),
1661 ¤t_objfile->type_obstack);
1662 TYPE_FIELD_BITPOS (tp, 0) = AUX_GET_DNLOW (bigend, ax);
1664 TYPE_FIELD_NAME (tp, 1) = obsavestring ("High", strlen ("High"),
1665 ¤t_objfile->type_obstack);
1666 TYPE_FIELD_BITPOS (tp, 1) = AUX_GET_DNHIGH (bigend, ax);
1670 /* Parse all the type qualifiers now. If there are more
1671 than 6 the game will continue in the next aux */
1675 #define PARSE_TQ(tq) \
1676 if (t->tq != tqNil) \
1677 ax += upgrade_type(fd, &tp, t->tq, ax, bigend, sym_name); \
1689 /* mips cc 2.x and gcc never put out continued aux entries. */
1693 (*debug_swap->swap_tir_in) (bigend, &ax->a_ti, t);
1697 /* Complain for illegal continuations due to corrupt aux entries. */
1699 complaint (&symfile_complaints, "illegal TIR continued for %s", sym_name);
1704 /* Make up a complex type from a basic one. Type is passed by
1705 reference in TPP and side-effected as necessary. The type
1706 qualifier TQ says how to handle the aux symbols at AX for
1707 the symbol SX we are currently analyzing. BIGEND says whether
1708 aux symbols are big-endian or little-endian.
1709 Returns the number of aux symbols we parsed. */
1712 upgrade_type (int fd, struct type **tpp, int tq, union aux_ext *ax, int bigend,
1718 /* Used in array processing */
1729 t = lookup_pointer_type (*tpp);
1734 t = lookup_function_type (*tpp);
1741 /* Determine and record the domain type (type of index) */
1742 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, &rndx);
1748 rf = AUX_GET_ISYM (bigend, ax);
1751 fh = get_rfd (fd, rf);
1753 indx = parse_type (fh - debug_info->fdr,
1754 debug_info->external_aux + fh->iauxBase,
1755 id, (int *) NULL, bigend, sym_name);
1757 /* The bounds type should be an integer type, but might be anything
1758 else due to corrupt aux entries. */
1759 if (TYPE_CODE (indx) != TYPE_CODE_INT)
1761 complaint (&symfile_complaints,
1762 "illegal array index type for %s, assuming int", sym_name);
1763 indx = mdebug_type_int;
1766 /* Get the bounds, and create the array type. */
1768 lower = AUX_GET_DNLOW (bigend, ax);
1770 upper = AUX_GET_DNHIGH (bigend, ax);
1772 rf = AUX_GET_WIDTH (bigend, ax); /* bit size of array element */
1774 range = create_range_type ((struct type *) NULL, indx,
1777 t = create_array_type ((struct type *) NULL, *tpp, range);
1779 /* We used to fill in the supplied array element bitsize
1780 here if the TYPE_LENGTH of the target type was zero.
1781 This happens for a `pointer to an array of anonymous structs',
1782 but in this case the array element bitsize is also zero,
1783 so nothing is gained.
1784 And we used to check the TYPE_LENGTH of the target type against
1785 the supplied array element bitsize.
1786 gcc causes a mismatch for `pointer to array of object',
1787 since the sdb directives it uses do not have a way of
1788 specifying the bitsize, but it does no harm (the
1789 TYPE_LENGTH should be correct) and we should be able to
1790 ignore the erroneous bitsize from the auxiliary entry safely.
1791 dbx seems to ignore it too. */
1793 /* TYPE_FLAG_TARGET_STUB now takes care of the zero TYPE_LENGTH
1795 if (TYPE_LENGTH (*tpp) == 0)
1797 TYPE_FLAGS (t) |= TYPE_FLAG_TARGET_STUB;
1804 /* Volatile -- currently ignored */
1808 /* Const -- currently ignored */
1812 complaint (&symfile_complaints, "unknown type qualifier 0x%x", tq);
1818 /* Parse a procedure descriptor record PR. Note that the procedure is
1819 parsed _after_ the local symbols, now we just insert the extra
1820 information we need into a MIPS_EFI_SYMBOL_NAME symbol that has
1821 already been placed in the procedure's main block. Note also that
1822 images that have been partially stripped (ld -x) have been deprived
1823 of local symbols, and we have to cope with them here. FIRST_OFF is
1824 the offset of the first procedure for this FDR; we adjust the
1825 address by this amount, but I don't know why. SEARCH_SYMTAB is the symtab
1826 to look for the function which contains the MIPS_EFI_SYMBOL_NAME symbol
1827 in question, or NULL to use top_stack->cur_block. */
1829 static void parse_procedure (PDR *, struct symtab *, struct partial_symtab *);
1832 parse_procedure (PDR *pr, struct symtab *search_symtab,
1833 struct partial_symtab *pst)
1835 struct symbol *s, *i;
1837 struct mips_extra_func_info *e;
1840 /* Simple rule to find files linked "-x" */
1841 if (cur_fdr->rss == -1)
1845 /* Static procedure at address pr->adr. Sigh. */
1846 /* FIXME-32x64. assuming pr->adr fits in long. */
1847 complaint (&symfile_complaints,
1848 "can't handle PDR for static proc at 0x%lx",
1849 (unsigned long) pr->adr);
1857 (*debug_swap->swap_ext_in) (cur_bfd,
1858 ((char *) debug_info->external_ext
1860 * debug_swap->external_ext_size)),
1862 sh_name = debug_info->ssext + she.asym.iss;
1870 (*debug_swap->swap_sym_in) (cur_bfd,
1871 ((char *) debug_info->external_sym
1872 + ((cur_fdr->isymBase + pr->isym)
1873 * debug_swap->external_sym_size)),
1875 sh_name = debug_info->ss + cur_fdr->issBase + sh.iss;
1878 if (search_symtab != NULL)
1881 /* This loses both in the case mentioned (want a static, find a global),
1882 but also if we are looking up a non-mangled name which happens to
1883 match the name of a mangled function. */
1884 /* We have to save the cur_fdr across the call to lookup_symbol.
1885 If the pdr is for a static function and if a global function with
1886 the same name exists, lookup_symbol will eventually read in the symtab
1887 for the global function and clobber cur_fdr. */
1888 FDR *save_cur_fdr = cur_fdr;
1889 s = lookup_symbol (sh_name, NULL, VAR_NAMESPACE, 0, NULL);
1890 cur_fdr = save_cur_fdr;
1894 BLOCKVECTOR_BLOCK (BLOCKVECTOR (search_symtab), STATIC_BLOCK),
1900 s = mylookup_symbol (sh_name, top_stack->cur_block,
1901 VAR_NAMESPACE, LOC_BLOCK);
1905 b = SYMBOL_BLOCK_VALUE (s);
1909 complaint (&symfile_complaints, "PDR for %s, but no symbol", sh_name);
1913 /* FIXME -- delete. We can't do symbol allocation now; it's all done. */
1914 s = new_symbol (sh_name);
1915 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
1916 SYMBOL_CLASS (s) = LOC_BLOCK;
1917 /* Donno its type, hope int is ok */
1918 SYMBOL_TYPE (s) = lookup_function_type (mdebug_type_int);
1919 add_symbol (s, top_stack->cur_block);
1920 /* Wont have symbols for this one */
1922 SYMBOL_BLOCK_VALUE (s) = b;
1923 BLOCK_FUNCTION (b) = s;
1924 BLOCK_START (b) = pr->adr;
1925 /* BOUND used to be the end of procedure's text, but the
1926 argument is no longer passed in. */
1927 BLOCK_END (b) = bound;
1928 BLOCK_SUPERBLOCK (b) = top_stack->cur_block;
1929 add_block (b, top_stack->cur_st);
1933 i = mylookup_symbol (MIPS_EFI_SYMBOL_NAME, b, LABEL_NAMESPACE, LOC_CONST);
1937 e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
1939 e->pdr.isym = (long) s;
1941 /* GDB expects the absolute function start address for the
1942 procedure descriptor in e->pdr.adr.
1943 As the address in the procedure descriptor is usually relative,
1944 we would have to relocate e->pdr.adr with cur_fdr->adr and
1945 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile)).
1946 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
1947 in shared libraries on some systems, and on other systems
1948 e->pdr.adr is sometimes offset by a bogus value.
1949 To work around these problems, we replace e->pdr.adr with
1950 the start address of the function. */
1951 e->pdr.adr = BLOCK_START (b);
1953 /* Correct incorrect setjmp procedure descriptor from the library
1954 to make backtrace through setjmp work. */
1955 if (e->pdr.pcreg == 0 && STREQ (sh_name, "setjmp"))
1957 complaint (&symfile_complaints, "fixing bad setjmp PDR from libc");
1958 e->pdr.pcreg = RA_REGNUM;
1959 e->pdr.regmask = 0x80000000;
1960 e->pdr.regoffset = -4;
1964 /* It would be reasonable that functions that have been compiled
1965 without debugging info have a btNil type for their return value,
1966 and functions that are void and are compiled with debugging info
1968 gcc and DEC f77 put out btNil types for both cases, so btNil is mapped
1969 to TYPE_CODE_VOID in parse_type to get the `compiled with debugging info'
1971 The glevel field in cur_fdr could be used to determine the presence
1972 of debugging info, but GCC doesn't always pass the -g switch settings
1973 to the assembler and GAS doesn't set the glevel field from the -g switch
1975 To work around these problems, the return value type of a TYPE_CODE_VOID
1976 function is adjusted accordingly if no debugging info was found in the
1977 compilation unit. */
1979 if (processing_gcc_compilation == 0
1980 && found_ecoff_debugging_info == 0
1981 && TYPE_CODE (TYPE_TARGET_TYPE (SYMBOL_TYPE (s))) == TYPE_CODE_VOID)
1982 SYMBOL_TYPE (s) = nodebug_func_symbol_type;
1985 /* Relocate the extra function info pointed to by the symbol table. */
1988 ecoff_relocate_efi (struct symbol *sym, CORE_ADDR delta)
1990 struct mips_extra_func_info *e;
1992 e = (struct mips_extra_func_info *) SYMBOL_VALUE (sym);
1994 e->pdr.adr += delta;
1997 /* Parse the external symbol ES. Just call parse_symbol() after
1998 making sure we know where the aux are for it.
1999 BIGEND says whether aux entries are big-endian or little-endian.
2001 This routine clobbers top_stack->cur_block and ->cur_st. */
2003 static void parse_external (EXTR *, int, struct section_offsets *,
2007 parse_external (EXTR *es, int bigend, struct section_offsets *section_offsets,
2008 struct objfile *objfile)
2012 if (es->ifd != ifdNil)
2015 cur_fdr = debug_info->fdr + cur_fd;
2016 ax = debug_info->external_aux + cur_fdr->iauxBase;
2020 cur_fdr = debug_info->fdr;
2024 /* Reading .o files */
2025 if (SC_IS_UNDEF (es->asym.sc) || es->asym.sc == scNil)
2028 switch (es->asym.st)
2031 /* These are generated for static symbols in .o files,
2052 /* FIXME: Turn this into a complaint? */
2054 printf_filtered ("Warning: %s `%s' is undefined (in %s)\n",
2055 what, debug_info->ssext + es->asym.iss,
2056 fdr_name (cur_fdr));
2060 switch (es->asym.st)
2064 /* There is no need to parse the external procedure symbols.
2065 If they are from objects compiled without -g, their index will
2066 be indexNil, and the symbol definition from the minimal symbol
2067 is preferrable (yielding a function returning int instead of int).
2068 If the index points to a local procedure symbol, the local
2069 symbol already provides the correct type.
2070 Note that the index of the external procedure symbol points
2071 to the local procedure symbol in the local symbol table, and
2072 _not_ to the auxiliary symbol info. */
2076 /* Global common symbols are resolved by the runtime loader,
2078 if (SC_IS_COMMON (es->asym.sc))
2081 /* Note that the case of a symbol with indexNil must be handled
2082 anyways by parse_symbol(). */
2083 parse_symbol (&es->asym, ax, (char *) NULL, bigend, section_offsets, objfile);
2090 /* Parse the line number info for file descriptor FH into
2091 GDB's linetable LT. MIPS' encoding requires a little bit
2092 of magic to get things out. Note also that MIPS' line
2093 numbers can go back and forth, apparently we can live
2094 with that and do not need to reorder our linetables */
2096 static void parse_lines (FDR *, PDR *, struct linetable *, int,
2097 struct partial_symtab *, CORE_ADDR);
2100 parse_lines (FDR *fh, PDR *pr, struct linetable *lt, int maxlines,
2101 struct partial_symtab *pst, CORE_ADDR lowest_pdr_addr)
2103 unsigned char *base;
2105 int delta, count, lineno = 0;
2107 if (fh->cbLine == 0)
2110 /* Scan by procedure descriptors */
2112 for (j = 0; j < fh->cpd; j++, pr++)
2116 unsigned char *halt;
2118 /* No code for this one */
2119 if (pr->iline == ilineNil ||
2120 pr->lnLow == -1 || pr->lnHigh == -1)
2123 /* Determine start and end address of compressed line bytes for
2125 base = debug_info->line + fh->cbLineOffset;
2126 if (j != (fh->cpd - 1))
2127 halt = base + pr[1].cbLineOffset;
2129 halt = base + fh->cbLine;
2130 base += pr->cbLineOffset;
2132 adr = pst->textlow + pr->adr - lowest_pdr_addr;
2134 l = adr >> 2; /* in words */
2135 for (lineno = pr->lnLow; base < halt;)
2137 count = *base & 0x0f;
2138 delta = *base++ >> 4;
2143 delta = (base[0] << 8) | base[1];
2144 if (delta >= 0x8000)
2148 lineno += delta; /* first delta is 0 */
2150 /* Complain if the line table overflows. Could happen
2151 with corrupt binaries. */
2152 if (lt->nitems >= maxlines)
2154 complaint (&symfile_complaints,
2155 "guessed size of linetable for %s incorrectly",
2159 k = add_line (lt, lineno, l, k);
2166 function_outside_compilation_unit_complaint (const char *arg1)
2168 complaint (&symfile_complaints,
2169 "function `%s' appears to be defined outside of all compilation units",
2173 /* Master parsing procedure for first-pass reading of file symbols
2174 into a partial_symtab. */
2177 parse_partial_symbols (struct objfile *objfile)
2179 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
2180 const bfd_size_type external_rfd_size = debug_swap->external_rfd_size;
2181 const bfd_size_type external_ext_size = debug_swap->external_ext_size;
2182 void (*const swap_ext_in) (bfd *, void *, EXTR *) = debug_swap->swap_ext_in;
2183 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
2184 void (*const swap_rfd_in) (bfd *, void *, RFDT *) = debug_swap->swap_rfd_in;
2186 HDRR *hdr = &debug_info->symbolic_header;
2187 /* Running pointers */
2192 register EXTR *ext_in;
2195 struct partial_symtab *pst;
2196 int textlow_not_set = 1;
2197 int past_first_source_file = 0;
2199 /* List of current psymtab's include files */
2200 char **psymtab_include_list;
2201 int includes_allocated;
2204 struct pst_map *fdr_to_pst;
2205 /* Index within current psymtab dependency list */
2206 struct partial_symtab **dependency_list;
2207 int dependencies_used, dependencies_allocated;
2208 struct cleanup *old_chain;
2210 enum language prev_language;
2211 asection *text_sect;
2212 int relocatable = 0;
2214 /* Irix 5.2 shared libraries have a fh->adr field of zero, but
2215 the shared libraries are prelinked at a high memory address.
2216 We have to adjust the start address of the object file for this case,
2217 by setting it to the start address of the first procedure in the file.
2218 But we should do no adjustments if we are debugging a .o file, where
2219 the text section (and fh->adr) really starts at zero. */
2220 text_sect = bfd_get_section_by_name (cur_bfd, ".text");
2221 if (text_sect != NULL
2222 && (bfd_get_section_flags (cur_bfd, text_sect) & SEC_RELOC))
2225 extern_tab = (EXTR *) obstack_alloc (&objfile->psymbol_obstack,
2226 sizeof (EXTR) * hdr->iextMax);
2228 includes_allocated = 30;
2230 psymtab_include_list = (char **) alloca (includes_allocated *
2232 next_symbol_text_func = mdebug_next_symbol_text;
2234 dependencies_allocated = 30;
2235 dependencies_used = 0;
2237 (struct partial_symtab **) alloca (dependencies_allocated *
2238 sizeof (struct partial_symtab *));
2240 last_source_file = NULL;
2245 * Only parse the Local and External symbols, and the Relative FDR.
2246 * Fixup enough of the loader symtab to be able to use it.
2247 * Allocate space only for the file's portions we need to
2252 max_glevel = MIN_GLEVEL;
2254 /* Allocate the map FDR -> PST.
2255 Minor hack: -O3 images might claim some global data belongs
2256 to FDR -1. We`ll go along with that */
2257 fdr_to_pst = (struct pst_map *) xzalloc ((hdr->ifdMax + 1) * sizeof *fdr_to_pst);
2258 old_chain = make_cleanup (xfree, fdr_to_pst);
2261 struct partial_symtab *pst = new_psymtab ("", objfile);
2262 fdr_to_pst[-1].pst = pst;
2266 /* Allocate the global pending list. */
2268 ((struct mdebug_pending **)
2269 obstack_alloc (&objfile->psymbol_obstack,
2270 hdr->ifdMax * sizeof (struct mdebug_pending *)));
2271 memset (pending_list, 0,
2272 hdr->ifdMax * sizeof (struct mdebug_pending *));
2274 /* Pass 0 over external syms: swap them in. */
2275 ext_block = (EXTR *) xmalloc (hdr->iextMax * sizeof (EXTR));
2276 make_cleanup (xfree, ext_block);
2278 ext_out = (char *) debug_info->external_ext;
2279 ext_out_end = ext_out + hdr->iextMax * external_ext_size;
2281 for (; ext_out < ext_out_end; ext_out += external_ext_size, ext_in++)
2282 (*swap_ext_in) (cur_bfd, ext_out, ext_in);
2284 /* Pass 1 over external syms: Presize and partition the list */
2286 ext_in_end = ext_in + hdr->iextMax;
2287 for (; ext_in < ext_in_end; ext_in++)
2289 /* See calls to complain below. */
2290 if (ext_in->ifd >= -1
2291 && ext_in->ifd < hdr->ifdMax
2292 && ext_in->asym.iss >= 0
2293 && ext_in->asym.iss < hdr->issExtMax)
2294 fdr_to_pst[ext_in->ifd].n_globals++;
2297 /* Pass 1.5 over files: partition out global symbol space */
2299 for (f_idx = -1; f_idx < hdr->ifdMax; f_idx++)
2301 fdr_to_pst[f_idx].globals_offset = s_idx;
2302 s_idx += fdr_to_pst[f_idx].n_globals;
2303 fdr_to_pst[f_idx].n_globals = 0;
2308 For ECOFF in ELF, we skip the creation of the minimal symbols.
2309 The ECOFF symbols should be a subset of the Elf symbols, and the
2310 section information of the elf symbols will be more accurate.
2311 FIXME! What about Irix 5's native linker?
2313 By default, Elf sections which don't exist in ECOFF
2314 get put in ECOFF's absolute section by the gnu linker.
2315 Since absolute sections don't get relocated, we
2316 end up calculating an address different from that of
2317 the symbol's minimal symbol (created earlier from the
2320 To fix this, either :
2321 1) don't create the duplicate symbol
2322 (assumes ECOFF symtab is a subset of the ELF symtab;
2323 assumes no side-effects result from ignoring ECOFF symbol)
2324 2) create it, only if lookup for existing symbol in ELF's minimal
2327 assumes no side-effects result from ignoring ECOFF symbol)
2328 3) create it, but lookup ELF's minimal symbol and use it's section
2329 during relocation, then modify "uniqify" phase to merge and
2330 eliminate the duplicate symbol
2331 (highly inefficient)
2333 I've implemented #1 here...
2334 Skip the creation of the minimal symbols based on the ECOFF
2337 /* Pass 2 over external syms: fill in external symbols */
2339 ext_in_end = ext_in + hdr->iextMax;
2340 for (; ext_in < ext_in_end; ext_in++)
2342 enum minimal_symbol_type ms_type = mst_text;
2343 CORE_ADDR svalue = ext_in->asym.value;
2345 /* The Irix 5 native tools seem to sometimes generate bogus
2346 external symbols. */
2347 if (ext_in->ifd < -1 || ext_in->ifd >= hdr->ifdMax)
2349 complaint (&symfile_complaints,
2350 "bad ifd for external symbol: %d (max %ld)", ext_in->ifd,
2354 if (ext_in->asym.iss < 0 || ext_in->asym.iss >= hdr->issExtMax)
2356 complaint (&symfile_complaints,
2357 "bad iss for external symbol: %ld (max %ld)",
2358 ext_in->asym.iss, hdr->issExtMax);
2362 extern_tab[fdr_to_pst[ext_in->ifd].globals_offset
2363 + fdr_to_pst[ext_in->ifd].n_globals++] = *ext_in;
2366 if (SC_IS_UNDEF (ext_in->asym.sc) || ext_in->asym.sc == scNil)
2370 /* Pass 3 over files, over local syms: fill in static symbols */
2371 name = debug_info->ssext + ext_in->asym.iss;
2373 /* Process ECOFF Symbol Types and Storage Classes */
2374 switch (ext_in->asym.st)
2377 /* Beginnning of Procedure */
2378 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2381 /* Load time only static procs */
2382 ms_type = mst_file_text;
2383 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2386 /* External symbol */
2387 if (SC_IS_COMMON (ext_in->asym.sc))
2389 /* The value of a common symbol is its size, not its address.
2393 else if (SC_IS_DATA (ext_in->asym.sc))
2396 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2398 else if (SC_IS_BSS (ext_in->asym.sc))
2401 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2403 else if (SC_IS_SBSS (ext_in->asym.sc))
2406 svalue += ANOFFSET (objfile->section_offsets,
2407 get_section_index (objfile, ".sbss"));
2415 /* On certain platforms, some extra label symbols can be
2416 generated by the linker. One possible usage for this kind
2417 of symbols is to represent the address of the begining of a
2418 given section. For instance, on Tru64 5.1, the address of
2419 the _ftext label is the start address of the .text section.
2421 The storage class of these symbols is usually directly
2422 related to the section to which the symbol refers. For
2423 instance, on Tru64 5.1, the storage class for the _fdata
2424 label is scData, refering to the .data section.
2426 It is actually possible that the section associated to the
2427 storage class of the label does not exist. On True64 5.1
2428 for instance, the libm.so shared library does not contain
2429 any .data section, although it contains a _fpdata label
2430 which storage class is scData... Since these symbols are
2431 usually useless for the debugger user anyway, we just
2432 discard these symbols.
2435 if (SC_IS_TEXT (ext_in->asym.sc))
2437 if (objfile->sect_index_text == -1)
2440 ms_type = mst_file_text;
2441 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2443 else if (SC_IS_DATA (ext_in->asym.sc))
2445 if (objfile->sect_index_data == -1)
2448 ms_type = mst_file_data;
2449 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2451 else if (SC_IS_BSS (ext_in->asym.sc))
2453 if (objfile->sect_index_bss == -1)
2456 ms_type = mst_file_bss;
2457 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2459 else if (SC_IS_SBSS (ext_in->asym.sc))
2461 const int sbss_sect_index = get_section_index (objfile, ".sbss");
2463 if (sbss_sect_index == -1)
2466 ms_type = mst_file_bss;
2467 svalue += ANOFFSET (objfile->section_offsets, sbss_sect_index);
2474 /* The alpha has the section start addresses in stLocal symbols
2475 whose name starts with a `.'. Skip those but complain for all
2476 other stLocal symbols.
2477 Irix6 puts the section start addresses in stNil symbols, skip
2483 ms_type = mst_unknown;
2484 unknown_ext_complaint (name);
2486 if (!ECOFF_IN_ELF (cur_bfd))
2487 prim_record_minimal_symbol (name, svalue, ms_type, objfile);
2490 /* Pass 3 over files, over local syms: fill in static symbols */
2491 for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
2493 struct partial_symtab *save_pst;
2497 cur_fdr = fh = debug_info->fdr + f_idx;
2501 fdr_to_pst[f_idx].pst = NULL;
2505 /* Determine the start address for this object file from the
2506 file header and relocate it, except for Irix 5.2 zero fh->adr. */
2510 if (relocatable || textlow != 0)
2511 textlow += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2515 pst = start_psymtab_common (objfile, objfile->section_offsets,
2518 objfile->global_psymbols.next,
2519 objfile->static_psymbols.next);
2520 pst->read_symtab_private = ((char *)
2521 obstack_alloc (&objfile->psymbol_obstack,
2522 sizeof (struct symloc)));
2523 memset (pst->read_symtab_private, 0, sizeof (struct symloc));
2526 FDR_IDX (pst) = f_idx;
2527 CUR_BFD (pst) = cur_bfd;
2528 DEBUG_SWAP (pst) = debug_swap;
2529 DEBUG_INFO (pst) = debug_info;
2530 PENDING_LIST (pst) = pending_list;
2532 /* The way to turn this into a symtab is to call... */
2533 pst->read_symtab = mdebug_psymtab_to_symtab;
2535 /* Set up language for the pst.
2536 The language from the FDR is used if it is unambigious (e.g. cfront
2537 with native cc and g++ will set the language to C).
2538 Otherwise we have to deduce the language from the filename.
2539 Native ecoff has every header file in a separate FDR, so
2540 deduce_language_from_filename will return language_unknown for
2541 a header file, which is not what we want.
2542 But the FDRs for the header files are after the FDR for the source
2543 file, so we can assign the language of the source file to the
2544 following header files. Then we save the language in the private
2545 pst data so that we can reuse it when building symtabs. */
2546 prev_language = psymtab_language;
2550 case langCplusplusV2:
2551 psymtab_language = language_cplus;
2554 psymtab_language = deduce_language_from_filename (fdr_name (fh));
2557 if (psymtab_language == language_unknown)
2558 psymtab_language = prev_language;
2559 PST_PRIVATE (pst)->pst_language = psymtab_language;
2561 pst->texthigh = pst->textlow;
2563 /* For stabs-in-ecoff files, the second symbol must be @stab.
2564 This symbol is emitted by mips-tfile to signal that the
2565 current object file uses encapsulated stabs instead of mips
2566 ecoff for local symbols. (It is the second symbol because
2567 the first symbol is the stFile used to signal the start of a
2569 processing_gcc_compilation = 0;
2572 (*swap_sym_in) (cur_bfd,
2573 ((char *) debug_info->external_sym
2574 + (fh->isymBase + 1) * external_sym_size),
2576 if (STREQ (debug_info->ss + fh->issBase + sh.iss, stabs_symbol))
2577 processing_gcc_compilation = 2;
2580 if (processing_gcc_compilation != 0)
2582 for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
2587 (*swap_sym_in) (cur_bfd,
2588 (((char *) debug_info->external_sym)
2589 + (fh->isymBase + cur_sdx) * external_sym_size),
2591 type_code = ECOFF_UNMARK_STAB (sh.index);
2592 if (!ECOFF_IS_STAB (&sh))
2594 if (sh.st == stProc || sh.st == stStaticProc)
2599 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2600 if (sh.st == stStaticProc)
2602 namestring = debug_info->ss + fh->issBase + sh.iss;
2603 prim_record_minimal_symbol_and_info (namestring,
2607 SECT_OFF_TEXT (objfile),
2611 procaddr = sh.value;
2613 isym = AUX_GET_ISYM (fh->fBigendian,
2614 (debug_info->external_aux
2617 (*swap_sym_in) (cur_bfd,
2618 ((char *) debug_info->external_sym
2619 + ((fh->isymBase + isym - 1)
2620 * external_sym_size)),
2624 CORE_ADDR high = procaddr + sh.value;
2626 /* Kludge for Irix 5.2 zero fh->adr. */
2628 && (pst->textlow == 0 || procaddr < pst->textlow))
2629 pst->textlow = procaddr;
2630 if (high > pst->texthigh)
2631 pst->texthigh = high;
2634 else if (sh.st == stStatic)
2649 namestring = debug_info->ss + fh->issBase + sh.iss;
2650 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2651 prim_record_minimal_symbol_and_info (namestring,
2655 SECT_OFF_DATA (objfile),
2661 /* FIXME! Shouldn't this use cases for bss,
2662 then have the default be abs? */
2663 namestring = debug_info->ss + fh->issBase + sh.iss;
2664 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2665 prim_record_minimal_symbol_and_info (namestring,
2669 SECT_OFF_BSS (objfile),
2677 /* Handle stabs continuation */
2679 char *stabstring = debug_info->ss + fh->issBase + sh.iss;
2680 int len = strlen (stabstring);
2681 while (stabstring[len - 1] == '\\')
2684 char *stabstring1 = stabstring;
2688 /* Ignore continuation char from 1st string */
2691 /* Read next stabstring */
2693 (*swap_sym_in) (cur_bfd,
2694 (((char *) debug_info->external_sym)
2695 + (fh->isymBase + cur_sdx)
2696 * external_sym_size),
2698 stabstring2 = debug_info->ss + fh->issBase + sh2.iss;
2699 len2 = strlen (stabstring2);
2701 /* Concatinate stabstring2 with stabstring1 */
2703 && stabstring != debug_info->ss + fh->issBase + sh.iss)
2704 stabstring = xrealloc (stabstring, len + len2 + 1);
2707 stabstring = xmalloc (len + len2 + 1);
2708 strcpy (stabstring, stabstring1);
2710 strcpy (stabstring + len, stabstring2);
2718 * Standard, external, non-debugger, symbols
2721 case N_TEXT | N_EXT:
2722 case N_NBTEXT | N_EXT:
2723 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2726 case N_DATA | N_EXT:
2727 case N_NBDATA | N_EXT:
2728 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2733 case N_NBBSS | N_EXT:
2734 case N_SETV | N_EXT: /* FIXME, is this in BSS? */
2735 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
2742 /* Standard, local, non-debugger, symbols */
2746 /* We need to be able to deal with both N_FN or N_TEXT,
2747 because we have no way of knowing whether the sys-supplied ld
2748 or GNU ld was used to make the executable. Sequents throw
2749 in another wrinkle -- they renumbered N_FN. */
2757 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2760 case N_UNDF | N_EXT:
2761 continue; /* Just undefined, not COMMON */
2766 /* Lots of symbol types we can just ignore. */
2773 /* Keep going . . . */
2776 * Special symbol types for GNU
2779 case N_INDR | N_EXT:
2781 case N_SETA | N_EXT:
2783 case N_SETT | N_EXT:
2785 case N_SETD | N_EXT:
2787 case N_SETB | N_EXT:
2798 static int prev_so_symnum = -10;
2799 static int first_so_symnum;
2801 int prev_textlow_not_set;
2803 valu = sh.value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
2805 prev_textlow_not_set = textlow_not_set;
2807 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
2808 /* A zero value is probably an indication for the SunPRO 3.0
2809 compiler. end_psymtab explicitly tests for zero, so
2810 don't relocate it. */
2814 textlow_not_set = 1;
2818 textlow_not_set = 0;
2820 textlow_not_set = 0;
2822 past_first_source_file = 1;
2824 if (prev_so_symnum != symnum - 1)
2825 { /* Here if prev stab wasn't N_SO */
2826 first_so_symnum = symnum;
2830 pst = (struct partial_symtab *) 0;
2832 dependencies_used = 0;
2836 prev_so_symnum = symnum;
2838 /* End the current partial symtab and start a new one */
2840 /* SET_NAMESTRING ();*/
2841 namestring = stabstring;
2843 /* Null name means end of .o file. Don't start a new one. */
2844 if (*namestring == '\000')
2847 /* Some compilers (including gcc) emit a pair of initial N_SOs.
2848 The first one is a directory name; the second the file name.
2849 If pst exists, is empty, and has a filename ending in '/',
2850 we assume the previous N_SO was a directory name. */
2852 p = strrchr (namestring, '/');
2853 if (p && *(p + 1) == '\000')
2854 continue; /* Simply ignore directory name SOs */
2856 /* Some other compilers (C++ ones in particular) emit useless
2857 SOs for non-existant .c files. We ignore all subsequent SOs that
2858 immediately follow the first. */
2870 enum language tmp_language;
2871 /* Mark down an include file in the current psymtab */
2873 /* SET_NAMESTRING ();*/
2874 namestring = stabstring;
2876 tmp_language = deduce_language_from_filename (namestring);
2878 /* Only change the psymtab's language if we've learned
2879 something useful (eg. tmp_language is not language_unknown).
2880 In addition, to match what start_subfile does, never change
2882 if (tmp_language != language_unknown
2883 && (tmp_language != language_c
2884 || psymtab_language != language_cplus))
2885 psymtab_language = tmp_language;
2887 /* In C++, one may expect the same filename to come round many
2888 times, when code is coming alternately from the main file
2889 and from inline functions in other files. So I check to see
2890 if this is a file we've seen before -- either the main
2891 source file, or a previously included file.
2893 This seems to be a lot of time to be spending on N_SOL, but
2894 things like "break c-exp.y:435" need to work (I
2895 suppose the psymtab_include_list could be hashed or put
2896 in a binary tree, if profiling shows this is a major hog). */
2897 if (pst && STREQ (namestring, pst->filename))
2901 for (i = 0; i < includes_used; i++)
2902 if (STREQ (namestring, psymtab_include_list[i]))
2911 psymtab_include_list[includes_used++] = namestring;
2912 if (includes_used >= includes_allocated)
2914 char **orig = psymtab_include_list;
2916 psymtab_include_list = (char **)
2917 alloca ((includes_allocated *= 2) *
2919 memcpy ((PTR) psymtab_include_list, (PTR) orig,
2920 includes_used * sizeof (char *));
2924 case N_LSYM: /* Typedef or automatic variable. */
2925 case N_STSYM: /* Data seg var -- static */
2926 case N_LCSYM: /* BSS " */
2927 case N_ROSYM: /* Read-only data seg var -- static. */
2928 case N_NBSTS: /* Gould nobase. */
2929 case N_NBLCS: /* symbols. */
2931 case N_GSYM: /* Global (extern) variable; can be
2932 data or bss (sigh FIXME). */
2934 /* Following may probably be ignored; I'll leave them here
2935 for now (until I do Pascal and Modula 2 extensions). */
2937 case N_PC: /* I may or may not need this; I
2939 case N_M2C: /* I suspect that I can ignore this here. */
2940 case N_SCOPE: /* Same. */
2942 /* SET_NAMESTRING ();*/
2943 namestring = stabstring;
2944 p = (char *) strchr (namestring, ':');
2946 continue; /* Not a debugging symbol. */
2950 /* Main processing section for debugging symbols which
2951 the initial read through the symbol tables needs to worry
2952 about. If we reach this point, the symbol which we are
2953 considering is definitely one we are interested in.
2954 p must also contain the (valid) index into the namestring
2955 which indicates the debugging type symbol. */
2960 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2961 #ifdef STATIC_TRANSFORM_NAME
2962 namestring = STATIC_TRANSFORM_NAME (namestring);
2964 add_psymbol_to_list (namestring, p - namestring,
2965 VAR_NAMESPACE, LOC_STATIC,
2966 &objfile->static_psymbols,
2968 psymtab_language, objfile);
2971 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
2972 /* The addresses in these entries are reported to be
2973 wrong. See the code that reads 'G's for symtabs. */
2974 add_psymbol_to_list (namestring, p - namestring,
2975 VAR_NAMESPACE, LOC_STATIC,
2976 &objfile->global_psymbols,
2978 psymtab_language, objfile);
2982 /* When a 'T' entry is defining an anonymous enum, it
2983 may have a name which is the empty string, or a
2984 single space. Since they're not really defining a
2985 symbol, those shouldn't go in the partial symbol
2986 table. We do pick up the elements of such enums at
2987 'check_enum:', below. */
2988 if (p >= namestring + 2
2989 || (p == namestring + 1
2990 && namestring[0] != ' '))
2992 add_psymbol_to_list (namestring, p - namestring,
2993 STRUCT_NAMESPACE, LOC_TYPEDEF,
2994 &objfile->static_psymbols,
2996 psymtab_language, objfile);
2999 /* Also a typedef with the same name. */
3000 add_psymbol_to_list (namestring, p - namestring,
3001 VAR_NAMESPACE, LOC_TYPEDEF,
3002 &objfile->static_psymbols,
3004 psymtab_language, objfile);
3007 /* The semantics of C++ state that "struct foo { ... }"
3008 also defines a typedef for "foo". Unfortuantely, cfront
3009 never makes the typedef when translating from C++ to C.
3010 We make the typedef here so that "ptype foo" works as
3011 expected for cfront translated code. */
3012 else if (psymtab_language == language_cplus)
3014 /* Also a typedef with the same name. */
3015 add_psymbol_to_list (namestring, p - namestring,
3016 VAR_NAMESPACE, LOC_TYPEDEF,
3017 &objfile->static_psymbols,
3019 psymtab_language, objfile);
3024 if (p != namestring) /* a name is there, not just :T... */
3026 add_psymbol_to_list (namestring, p - namestring,
3027 VAR_NAMESPACE, LOC_TYPEDEF,
3028 &objfile->static_psymbols,
3030 psymtab_language, objfile);
3033 /* If this is an enumerated type, we need to
3034 add all the enum constants to the partial symbol
3035 table. This does not cover enums without names, e.g.
3036 "enum {a, b} c;" in C, but fortunately those are
3037 rare. There is no way for GDB to find those from the
3038 enum type without spending too much time on it. Thus
3039 to solve this problem, the compiler needs to put out the
3040 enum in a nameless type. GCC2 does this. */
3042 /* We are looking for something of the form
3043 <name> ":" ("t" | "T") [<number> "="] "e"
3044 {<constant> ":" <value> ","} ";". */
3046 /* Skip over the colon and the 't' or 'T'. */
3048 /* This type may be given a number. Also, numbers can come
3049 in pairs like (0,26). Skip over it. */
3050 while ((*p >= '0' && *p <= '9')
3051 || *p == '(' || *p == ',' || *p == ')'
3057 /* The aix4 compiler emits extra crud before the members. */
3060 /* Skip over the type (?). */
3064 /* Skip over the colon. */
3068 /* We have found an enumerated type. */
3069 /* According to comments in read_enum_type
3070 a comma could end it instead of a semicolon.
3071 I don't know where that happens.
3073 while (*p && *p != ';' && *p != ',')
3077 /* Check for and handle cretinous dbx symbol name
3079 if (*p == '\\' || (*p == '?' && p[1] == '\0'))
3080 p = next_symbol_text (objfile);
3082 /* Point to the character after the name
3083 of the enum constant. */
3084 for (q = p; *q && *q != ':'; q++)
3086 /* Note that the value doesn't matter for
3087 enum constants in psymtabs, just in symtabs. */
3088 add_psymbol_to_list (p, q - p,
3089 VAR_NAMESPACE, LOC_CONST,
3090 &objfile->static_psymbols, 0,
3091 0, psymtab_language, objfile);
3092 /* Point past the name. */
3094 /* Skip over the value. */
3095 while (*p && *p != ',')
3097 /* Advance past the comma. */
3104 /* Constant, e.g. from "const" in Pascal. */
3105 add_psymbol_to_list (namestring, p - namestring,
3106 VAR_NAMESPACE, LOC_CONST,
3107 &objfile->static_psymbols, sh.value,
3108 0, psymtab_language, objfile);
3114 int name_len = p - namestring;
3115 char *name = xmalloc (name_len + 1);
3116 memcpy (name, namestring, name_len);
3117 name[name_len] = '\0';
3118 function_outside_compilation_unit_complaint (name);
3121 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3122 add_psymbol_to_list (namestring, p - namestring,
3123 VAR_NAMESPACE, LOC_BLOCK,
3124 &objfile->static_psymbols,
3126 psymtab_language, objfile);
3129 /* Global functions were ignored here, but now they
3130 are put into the global psymtab like one would expect.
3131 They're also in the minimal symbol table. */
3135 int name_len = p - namestring;
3136 char *name = xmalloc (name_len + 1);
3137 memcpy (name, namestring, name_len);
3138 name[name_len] = '\0';
3139 function_outside_compilation_unit_complaint (name);
3142 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3143 add_psymbol_to_list (namestring, p - namestring,
3144 VAR_NAMESPACE, LOC_BLOCK,
3145 &objfile->global_psymbols,
3147 psymtab_language, objfile);
3150 /* Two things show up here (hopefully); static symbols of
3151 local scope (static used inside braces) or extensions
3152 of structure symbols. We can ignore both. */
3166 case '#': /* for symbol identification (used in live ranges) */
3167 /* added to support cfront stabs strings */
3168 case 'Z': /* for definition continuations */
3169 case 'P': /* for prototypes */
3173 /* It is a C++ nested symbol. We don't need to record it
3174 (I don't think); if we try to look up foo::bar::baz,
3175 then symbols for the symtab containing foo should get
3176 read in, I think. */
3177 /* Someone says sun cc puts out symbols like
3178 /foo/baz/maclib::/usr/local/bin/maclib,
3179 which would get here with a symbol type of ':'. */
3183 /* Unexpected symbol descriptor. The second and subsequent stabs
3184 of a continued stab can show up here. The question is
3185 whether they ever can mimic a normal stab--it would be
3186 nice if not, since we certainly don't want to spend the
3187 time searching to the end of every string looking for
3190 complaint (&symfile_complaints,
3191 "unknown symbol descriptor `%c'", p[1]);
3193 /* Ignore it; perhaps it is an extension that we don't
3202 #ifdef SOFUN_ADDRESS_MAYBE_MISSING
3203 /* Solaris 2 end of module, finish current partial
3204 symbol table. END_PSYMTAB will set
3205 pst->texthigh to the proper value, which is
3206 necessary if a module compiled without
3207 debugging info follows this module. */
3210 pst = (struct partial_symtab *) 0;
3212 dependencies_used = 0;
3218 if (sh.value > save_pst->texthigh)
3219 save_pst->texthigh = sh.value;
3224 case N_SSYM: /* Claim: Structure or union element.
3225 Hopefully, I can ignore this. */
3226 case N_ENTRY: /* Alternate entry point; can ignore. */
3227 case N_MAIN: /* Can definitely ignore this. */
3228 case N_CATCH: /* These are GNU C++ extensions */
3229 case N_EHDECL: /* that can safely be ignored here. */
3239 case N_NSYMS: /* Ultrix 4.0: symbol count */
3240 case N_DEFD: /* GNU Modula-2 */
3241 case N_ALIAS: /* SunPro F77: alias name, ignore for now. */
3243 case N_OBJ: /* useless types from Solaris */
3245 /* These symbols aren't interesting; don't worry about them */
3250 /* If we haven't found it yet, ignore it. It's probably some
3251 new type we don't know about yet. */
3252 complaint (&symfile_complaints, "unknown symbol type %s",
3253 local_hex_string (type_code)); /*CUR_SYMBOL_TYPE*/
3257 && stabstring != debug_info->ss + fh->issBase + sh.iss)
3260 /* end - Handle continuation */
3265 for (cur_sdx = 0; cur_sdx < fh->csym;)
3268 enum address_class class;
3270 (*swap_sym_in) (cur_bfd,
3271 ((char *) debug_info->external_sym
3272 + ((fh->isymBase + cur_sdx)
3273 * external_sym_size)),
3276 if (ECOFF_IS_STAB (&sh))
3282 /* Non absolute static symbols go into the minimal table. */
3283 if (SC_IS_UNDEF (sh.sc) || sh.sc == scNil
3284 || (sh.index == indexNil
3285 && (sh.st != stStatic || sh.sc == scAbs)))
3287 /* FIXME, premature? */
3292 name = debug_info->ss + fh->issBase + sh.iss;
3298 /* The value of a stEnd symbol is the displacement from the
3299 corresponding start symbol value, do not relocate it. */
3301 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3308 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3312 sh.value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
3323 prim_record_minimal_symbol_and_info (name, sh.value,
3324 mst_file_text, NULL,
3325 SECT_OFF_TEXT (objfile), NULL,
3331 /* Usually there is a local and a global stProc symbol
3332 for a function. This means that the function name
3333 has already been entered into the mimimal symbol table
3334 while processing the global symbols in pass 2 above.
3335 One notable exception is the PROGRAM name from
3336 f77 compiled executables, it is only put out as
3337 local stProc symbol, and a global MAIN__ stProc symbol
3338 points to it. It doesn't matter though, as gdb is
3339 still able to find the PROGRAM name via the partial
3340 symbol table, and the MAIN__ symbol via the minimal
3342 if (sh.st == stProc)
3343 add_psymbol_to_list (name, strlen (name),
3344 VAR_NAMESPACE, LOC_BLOCK,
3345 &objfile->global_psymbols,
3346 0, sh.value, psymtab_language, objfile);
3348 add_psymbol_to_list (name, strlen (name),
3349 VAR_NAMESPACE, LOC_BLOCK,
3350 &objfile->static_psymbols,
3351 0, sh.value, psymtab_language, objfile);
3353 /* Skip over procedure to next one. */
3354 if (sh.index >= hdr->iauxMax)
3356 /* Should not happen, but does when cross-compiling
3357 with the MIPS compiler. FIXME -- pull later. */
3358 index_complaint (name);
3359 new_sdx = cur_sdx + 1; /* Don't skip at all */
3362 new_sdx = AUX_GET_ISYM (fh->fBigendian,
3363 (debug_info->external_aux
3366 procaddr = sh.value;
3368 if (new_sdx <= cur_sdx)
3370 /* This should not happen either... FIXME. */
3371 complaint (&symfile_complaints,
3372 "bad proc end in aux found from symbol %s",
3374 new_sdx = cur_sdx + 1; /* Don't skip backward */
3378 (*swap_sym_in) (cur_bfd,
3379 ((char *) debug_info->external_sym
3380 + ((fh->isymBase + cur_sdx - 1)
3381 * external_sym_size)),
3386 /* Kludge for Irix 5.2 zero fh->adr. */
3388 && (pst->textlow == 0 || procaddr < pst->textlow))
3389 pst->textlow = procaddr;
3391 high = procaddr + sh.value;
3392 if (high > pst->texthigh)
3393 pst->texthigh = high;
3396 case stStatic: /* Variable */
3397 if (SC_IS_DATA (sh.sc))
3398 prim_record_minimal_symbol_and_info (name, sh.value,
3399 mst_file_data, NULL,
3400 SECT_OFF_DATA (objfile),
3404 prim_record_minimal_symbol_and_info (name, sh.value,
3406 SECT_OFF_BSS (objfile),
3412 case stIndirect: /* Irix5 forward declaration */
3413 /* Skip forward declarations from Irix5 cc */
3416 case stTypedef: /* Typedef */
3417 /* Skip typedefs for forward declarations and opaque
3418 structs from alpha and mips cc. */
3419 if (sh.iss == 0 || has_opaque_xref (fh, &sh))
3421 class = LOC_TYPEDEF;
3424 case stConstant: /* Constant decl */
3431 case stBlock: /* { }, str, un, enum */
3432 /* Do not create a partial symbol for cc unnamed aggregates
3433 and gcc empty aggregates. */
3434 if ((sh.sc == scInfo
3435 || SC_IS_COMMON (sh.sc))
3437 && sh.index != cur_sdx + 2)
3439 add_psymbol_to_list (name, strlen (name),
3440 STRUCT_NAMESPACE, LOC_TYPEDEF,
3441 &objfile->static_psymbols,
3443 psymtab_language, objfile);
3445 handle_psymbol_enumerators (objfile, fh, sh.st, sh.value);
3447 /* Skip over the block */
3449 if (new_sdx <= cur_sdx)
3451 /* This happens with the Ultrix kernel. */
3452 complaint (&symfile_complaints,
3453 "bad aux index at block symbol %s", name);
3454 new_sdx = cur_sdx + 1; /* Don't skip backward */
3459 case stFile: /* File headers */
3460 case stLabel: /* Labels */
3461 case stEnd: /* Ends of files */
3464 case stLocal: /* Local variables */
3465 /* Normally these are skipped because we skip over
3466 all blocks we see. However, these can occur
3467 as visible symbols in a .h file that contains code. */
3471 /* Both complaints are valid: one gives symbol name,
3472 the other the offending symbol type. */
3473 complaint (&symfile_complaints, "unknown local symbol %s",
3475 complaint (&symfile_complaints, "with type %d", sh.st);
3479 /* Use this gdb symbol */
3480 add_psymbol_to_list (name, strlen (name),
3481 VAR_NAMESPACE, class,
3482 &objfile->static_psymbols,
3483 0, sh.value, psymtab_language, objfile);
3485 cur_sdx++; /* Go to next file symbol */
3488 /* Now do enter the external symbols. */
3489 ext_ptr = &extern_tab[fdr_to_pst[f_idx].globals_offset];
3490 cur_sdx = fdr_to_pst[f_idx].n_globals;
3491 PST_PRIVATE (save_pst)->extern_count = cur_sdx;
3492 PST_PRIVATE (save_pst)->extern_tab = ext_ptr;
3493 for (; --cur_sdx >= 0; ext_ptr++)
3495 enum address_class class;
3500 if (ext_ptr->ifd != f_idx)
3501 internal_error (__FILE__, __LINE__, "failed internal consistency check");
3502 psh = &ext_ptr->asym;
3504 /* Do not add undefined symbols to the partial symbol table. */
3505 if (SC_IS_UNDEF (psh->sc) || psh->sc == scNil)
3508 svalue = psh->value;
3513 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
3520 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
3524 svalue += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
3531 /* These are generated for static symbols in .o files,
3536 /* External procedure symbols have been entered
3537 into the minimal symbol table in pass 2 above.
3538 Ignore them, as parse_external will ignore them too. */
3544 unknown_ext_complaint (debug_info->ssext + psh->iss);
3545 /* Fall through, pretend it's global. */
3547 /* Global common symbols are resolved by the runtime loader,
3549 if (SC_IS_COMMON (psh->sc))
3555 name = debug_info->ssext + psh->iss;
3556 add_psymbol_to_list (name, strlen (name),
3557 VAR_NAMESPACE, class,
3558 &objfile->global_psymbols,
3560 psymtab_language, objfile);
3564 /* Link pst to FDR. end_psymtab returns NULL if the psymtab was
3565 empty and put on the free list. */
3566 fdr_to_pst[f_idx].pst = end_psymtab (save_pst,
3567 psymtab_include_list, includes_used,
3568 -1, save_pst->texthigh,
3569 dependency_list, dependencies_used, textlow_not_set);
3571 dependencies_used = 0;
3573 if (objfile->ei.entry_point >= save_pst->textlow &&
3574 objfile->ei.entry_point < save_pst->texthigh)
3576 objfile->ei.entry_file_lowpc = save_pst->textlow;
3577 objfile->ei.entry_file_highpc = save_pst->texthigh;
3580 /* The objfile has its functions reordered if this partial symbol
3581 table overlaps any other partial symbol table.
3582 We cannot assume a reordered objfile if a partial symbol table
3583 is contained within another partial symbol table, as partial symbol
3584 tables for include files with executable code are contained
3585 within the partial symbol table for the including source file,
3586 and we do not want to flag the objfile reordered for these cases.
3588 This strategy works well for Irix-5.2 shared libraries, but we
3589 might have to use a more elaborate (and slower) algorithm for
3591 save_pst = fdr_to_pst[f_idx].pst;
3592 if (save_pst != NULL
3593 && save_pst->textlow != 0
3594 && !(objfile->flags & OBJF_REORDERED))
3596 ALL_OBJFILE_PSYMTABS (objfile, pst)
3599 && save_pst->textlow >= pst->textlow
3600 && save_pst->textlow < pst->texthigh
3601 && save_pst->texthigh > pst->texthigh)
3603 objfile->flags |= OBJF_REORDERED;
3610 /* Now scan the FDRs for dependencies */
3611 for (f_idx = 0; f_idx < hdr->ifdMax; f_idx++)
3613 fh = f_idx + debug_info->fdr;
3614 pst = fdr_to_pst[f_idx].pst;
3616 if (pst == (struct partial_symtab *) NULL)
3619 /* This should catch stabs-in-ecoff. */
3623 /* Skip the first file indirect entry as it is a self dependency
3624 for source files or a reverse .h -> .c dependency for header files. */
3625 pst->number_of_dependencies = 0;
3627 ((struct partial_symtab **)
3628 obstack_alloc (&objfile->psymbol_obstack,
3630 * sizeof (struct partial_symtab *))));
3631 for (s_idx = 1; s_idx < fh->crfd; s_idx++)
3635 (*swap_rfd_in) (cur_bfd,
3636 ((char *) debug_info->external_rfd
3637 + (fh->rfdBase + s_idx) * external_rfd_size),
3639 if (rh < 0 || rh >= hdr->ifdMax)
3641 complaint (&symfile_complaints, "bad file number %ld", rh);
3645 /* Skip self dependencies of header files. */
3649 /* Do not add to dependeny list if psymtab was empty. */
3650 if (fdr_to_pst[rh].pst == (struct partial_symtab *) NULL)
3652 pst->dependencies[pst->number_of_dependencies++] = fdr_to_pst[rh].pst;
3656 /* Remove the dummy psymtab created for -O3 images above, if it is
3657 still empty, to enable the detection of stripped executables. */
3658 if (objfile->psymtabs->next == NULL
3659 && objfile->psymtabs->number_of_dependencies == 0
3660 && objfile->psymtabs->n_global_syms == 0
3661 && objfile->psymtabs->n_static_syms == 0)
3662 objfile->psymtabs = NULL;
3663 do_cleanups (old_chain);
3666 /* If the current psymbol has an enumerated type, we need to add
3667 all the the enum constants to the partial symbol table. */
3670 handle_psymbol_enumerators (struct objfile *objfile, FDR *fh, int stype,
3673 const bfd_size_type external_sym_size = debug_swap->external_sym_size;
3674 void (*const swap_sym_in) (bfd *, void *, SYMR *) = debug_swap->swap_sym_in;
3675 char *ext_sym = ((char *) debug_info->external_sym
3676 + ((fh->isymBase + cur_sdx + 1) * external_sym_size));
3686 /* It is an enumerated type if the next symbol entry is a stMember
3687 and its auxiliary index is indexNil or its auxiliary entry
3688 is a plain btNil or btVoid.
3689 Alpha cc -migrate enums are recognized by a zero index and
3690 a zero symbol value.
3691 DU 4.0 cc enums are recognized by a member type of btEnum without
3692 qualifiers and a zero symbol value. */
3693 (*swap_sym_in) (cur_bfd, ext_sym, &sh);
3694 if (sh.st != stMember)
3697 if (sh.index == indexNil
3698 || (sh.index == 0 && svalue == 0))
3700 (*debug_swap->swap_tir_in) (fh->fBigendian,
3701 &(debug_info->external_aux
3702 + fh->iauxBase + sh.index)->a_ti,
3704 if ((tir.bt != btNil
3706 && (tir.bt != btEnum || svalue != 0))
3707 || tir.tq0 != tqNil)
3719 (*swap_sym_in) (cur_bfd, ext_sym, &sh);
3720 if (sh.st != stMember)
3722 name = debug_info->ss + cur_fdr->issBase + sh.iss;
3724 /* Note that the value doesn't matter for enum constants
3725 in psymtabs, just in symtabs. */
3726 add_psymbol_to_list (name, strlen (name),
3727 VAR_NAMESPACE, LOC_CONST,
3728 &objfile->static_psymbols, 0,
3729 (CORE_ADDR) 0, psymtab_language, objfile);
3730 ext_sym += external_sym_size;
3734 /* Get the next symbol. OBJFILE is unused. */
3737 mdebug_next_symbol_text (struct objfile *objfile)
3742 (*debug_swap->swap_sym_in) (cur_bfd,
3743 ((char *) debug_info->external_sym
3744 + ((cur_fdr->isymBase + cur_sdx)
3745 * debug_swap->external_sym_size)),
3747 return debug_info->ss + cur_fdr->issBase + sh.iss;
3750 /* Ancillary function to psymtab_to_symtab(). Does all the work
3751 for turning the partial symtab PST into a symtab, recurring
3752 first on all dependent psymtabs. The argument FILENAME is
3753 only passed so we can see in debug stack traces what file
3756 This function has a split personality, based on whether the
3757 symbol table contains ordinary ecoff symbols, or stabs-in-ecoff.
3758 The flow of control and even the memory allocation differs. FIXME. */
3761 psymtab_to_symtab_1 (struct partial_symtab *pst, char *filename)
3763 bfd_size_type external_sym_size;
3764 bfd_size_type external_pdr_size;
3765 void (*swap_sym_in) (bfd *, void *, SYMR *);
3766 void (*swap_pdr_in) (bfd *, void *, PDR *);
3768 struct symtab *st = NULL;
3770 struct linetable *lines;
3771 CORE_ADDR lowest_pdr_addr = 0;
3772 int last_symtab_ended = 0;
3778 /* Read in all partial symbtabs on which this one is dependent.
3779 NOTE that we do have circular dependencies, sigh. We solved
3780 that by setting pst->readin before this point. */
3782 for (i = 0; i < pst->number_of_dependencies; i++)
3783 if (!pst->dependencies[i]->readin)
3785 /* Inform about additional files to be read in. */
3788 fputs_filtered (" ", gdb_stdout);
3790 fputs_filtered ("and ", gdb_stdout);
3792 printf_filtered ("%s...",
3793 pst->dependencies[i]->filename);
3794 wrap_here (""); /* Flush output */
3795 gdb_flush (gdb_stdout);
3797 /* We only pass the filename for debug purposes */
3798 psymtab_to_symtab_1 (pst->dependencies[i],
3799 pst->dependencies[i]->filename);
3802 /* Do nothing if this is a dummy psymtab. */
3804 if (pst->n_global_syms == 0 && pst->n_static_syms == 0
3805 && pst->textlow == 0 && pst->texthigh == 0)
3808 /* Now read the symbols for this symtab */
3810 cur_bfd = CUR_BFD (pst);
3811 debug_swap = DEBUG_SWAP (pst);
3812 debug_info = DEBUG_INFO (pst);
3813 pending_list = PENDING_LIST (pst);
3814 external_sym_size = debug_swap->external_sym_size;
3815 external_pdr_size = debug_swap->external_pdr_size;
3816 swap_sym_in = debug_swap->swap_sym_in;
3817 swap_pdr_in = debug_swap->swap_pdr_in;
3818 current_objfile = pst->objfile;
3819 cur_fd = FDR_IDX (pst);
3820 fh = ((cur_fd == -1)
3822 : debug_info->fdr + cur_fd);
3825 /* See comment in parse_partial_symbols about the @stabs sentinel. */
3826 processing_gcc_compilation = 0;
3827 if (fh != (FDR *) NULL && fh->csym >= 2)
3831 (*swap_sym_in) (cur_bfd,
3832 ((char *) debug_info->external_sym
3833 + (fh->isymBase + 1) * external_sym_size),
3835 if (STREQ (debug_info->ss + fh->issBase + sh.iss,
3838 /* We indicate that this is a GCC compilation so that certain
3839 features will be enabled in stabsread/dbxread. */
3840 processing_gcc_compilation = 2;
3844 if (processing_gcc_compilation != 0)
3847 /* This symbol table contains stabs-in-ecoff entries. */
3849 /* Parse local symbols first */
3851 if (fh->csym <= 2) /* FIXME, this blows psymtab->symtab ptr */
3853 current_objfile = NULL;
3856 for (cur_sdx = 2; cur_sdx < fh->csym; cur_sdx++)
3862 (*swap_sym_in) (cur_bfd,
3863 (((char *) debug_info->external_sym)
3864 + (fh->isymBase + cur_sdx) * external_sym_size),
3866 name = debug_info->ss + fh->issBase + sh.iss;
3868 /* XXX This is a hack. It will go away! */
3869 if (ECOFF_IS_STAB (&sh) || (name[0] == '#'))
3871 int type_code = ECOFF_UNMARK_STAB (sh.index);
3873 /* We should never get non N_STAB symbols here, but they
3874 should be harmless, so keep process_one_symbol from
3875 complaining about them. */
3876 if (type_code & N_STAB)
3878 /* If we found a trailing N_SO with no name, process
3879 it here instead of in process_one_symbol, so we
3880 can keep a handle to its symtab. The symtab
3881 would otherwise be ended twice, once in
3882 process_one_symbol, and once after this loop. */
3883 if (type_code == N_SO
3885 && previous_stab_code != (unsigned char) N_SO
3888 valu += ANOFFSET (pst->section_offsets,
3889 SECT_OFF_TEXT (pst->objfile));
3890 previous_stab_code = N_SO;
3891 st = end_symtab (valu, pst->objfile,
3892 SECT_OFF_TEXT (pst->objfile));
3894 last_symtab_ended = 1;
3898 last_symtab_ended = 0;
3899 process_one_symbol (type_code, 0, valu, name,
3900 pst->section_offsets, pst->objfile);
3903 /* Similarly a hack. */
3904 else if (name[0] == '#')
3906 process_one_symbol (N_SLINE, 0, valu, name,
3907 pst->section_offsets, pst->objfile);
3909 if (type_code == N_FUN)
3911 /* Make up special symbol to contain
3912 procedure specific info */
3913 struct mips_extra_func_info *e =
3914 ((struct mips_extra_func_info *)
3915 obstack_alloc (¤t_objfile->symbol_obstack,
3916 sizeof (struct mips_extra_func_info)));
3917 struct symbol *s = new_symbol (MIPS_EFI_SYMBOL_NAME);
3919 memset (e, 0, sizeof (struct mips_extra_func_info));
3920 SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
3921 SYMBOL_CLASS (s) = LOC_CONST;
3922 SYMBOL_TYPE (s) = mdebug_type_void;
3923 SYMBOL_VALUE (s) = (long) e;
3924 e->pdr.framereg = -1;
3925 add_symbol_to_list (s, &local_symbols);
3928 else if (sh.st == stLabel)
3930 if (sh.index == indexNil)
3932 /* This is what the gcc2_compiled and __gnu_compiled_*
3933 show up as. So don't complain. */
3938 /* Handle encoded stab line number. */
3939 valu += ANOFFSET (pst->section_offsets, SECT_OFF_TEXT (pst->objfile));
3940 record_line (current_subfile, sh.index, valu);
3943 else if (sh.st == stProc || sh.st == stStaticProc
3944 || sh.st == stStatic || sh.st == stEnd)
3945 /* These are generated by gcc-2.x, do not complain */
3948 complaint (&symfile_complaints, "unknown stabs symbol %s", name);
3951 if (! last_symtab_ended)
3953 st = end_symtab (pst->texthigh, pst->objfile, SECT_OFF_TEXT (pst->objfile));
3957 /* Sort the symbol table now, we are done adding symbols to it.
3958 We must do this before parse_procedure calls lookup_symbol. */
3959 sort_symtab_syms (st);
3961 /* There used to be a call to sort_blocks here, but this should not
3962 be necessary for stabs symtabs. And as sort_blocks modifies the
3963 start address of the GLOBAL_BLOCK to the FIRST_LOCAL_BLOCK,
3964 it did the wrong thing if the first procedure in a file was
3965 generated via asm statements. */
3967 /* Fill in procedure info next. */
3971 struct cleanup *old_chain;
3977 pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
3978 old_chain = make_cleanup (xfree, pr_block);
3980 pdr_ptr = ((char *) debug_info->external_pdr
3981 + fh->ipdFirst * external_pdr_size);
3982 pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
3986 pdr_ptr += external_pdr_size, pdr_in++)
3988 (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
3990 /* Determine lowest PDR address, the PDRs are not always
3992 if (pdr_in == pr_block)
3993 lowest_pdr_addr = pdr_in->adr;
3994 else if (pdr_in->adr < lowest_pdr_addr)
3995 lowest_pdr_addr = pdr_in->adr;
3999 pdr_in_end = pdr_in + fh->cpd;
4000 for (; pdr_in < pdr_in_end; pdr_in++)
4001 parse_procedure (pdr_in, st, pst);
4003 do_cleanups (old_chain);
4008 /* This symbol table contains ordinary ecoff entries. */
4014 /* How many symbols will we need */
4015 /* FIXME, this does not count enum values. */
4016 f_max = pst->n_global_syms + pst->n_static_syms;
4020 st = new_symtab ("unknown", f_max, 0, pst->objfile);
4024 f_max += fh->csym + fh->cpd;
4025 maxlines = 2 * fh->cline;
4026 st = new_symtab (pst->filename, 2 * f_max, maxlines, pst->objfile);
4028 /* The proper language was already determined when building
4029 the psymtab, use it. */
4030 st->language = PST_PRIVATE (pst)->pst_language;
4033 psymtab_language = st->language;
4035 lines = LINETABLE (st);
4037 /* Get a new lexical context */
4039 push_parse_stack ();
4040 top_stack->cur_st = st;
4041 top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (st),
4043 BLOCK_START (top_stack->cur_block) = pst->textlow;
4044 BLOCK_END (top_stack->cur_block) = 0;
4045 top_stack->blocktype = stFile;
4046 top_stack->maxsyms = 2 * f_max;
4047 top_stack->cur_type = 0;
4048 top_stack->procadr = 0;
4049 top_stack->numargs = 0;
4050 found_ecoff_debugging_info = 0;
4057 /* Parse local symbols first */
4058 sym_ptr = ((char *) debug_info->external_sym
4059 + fh->isymBase * external_sym_size);
4060 sym_end = sym_ptr + fh->csym * external_sym_size;
4061 while (sym_ptr < sym_end)
4066 (*swap_sym_in) (cur_bfd, sym_ptr, &sh);
4067 c = parse_symbol (&sh,
4068 debug_info->external_aux + fh->iauxBase,
4069 sym_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);
4070 sym_ptr += c * external_sym_size;
4073 /* Linenumbers. At the end, check if we can save memory.
4074 parse_lines has to look ahead an arbitrary number of PDR
4075 structures, so we swap them all first. */
4079 struct cleanup *old_chain;
4085 pr_block = (PDR *) xmalloc (fh->cpd * sizeof (PDR));
4087 old_chain = make_cleanup (xfree, pr_block);
4089 pdr_ptr = ((char *) debug_info->external_pdr
4090 + fh->ipdFirst * external_pdr_size);
4091 pdr_end = pdr_ptr + fh->cpd * external_pdr_size;
4095 pdr_ptr += external_pdr_size, pdr_in++)
4097 (*swap_pdr_in) (cur_bfd, pdr_ptr, pdr_in);
4099 /* Determine lowest PDR address, the PDRs are not always
4101 if (pdr_in == pr_block)
4102 lowest_pdr_addr = pdr_in->adr;
4103 else if (pdr_in->adr < lowest_pdr_addr)
4104 lowest_pdr_addr = pdr_in->adr;
4107 parse_lines (fh, pr_block, lines, maxlines, pst, lowest_pdr_addr);
4108 if (lines->nitems < fh->cline)
4109 lines = shrink_linetable (lines);
4111 /* Fill in procedure info next. */
4113 pdr_in_end = pdr_in + fh->cpd;
4114 for (; pdr_in < pdr_in_end; pdr_in++)
4115 parse_procedure (pdr_in, 0, pst);
4117 do_cleanups (old_chain);
4121 LINETABLE (st) = lines;
4123 /* .. and our share of externals.
4124 XXX use the global list to speed up things here. how?
4125 FIXME, Maybe quit once we have found the right number of ext's? */
4126 top_stack->cur_st = st;
4127 top_stack->cur_block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (top_stack->cur_st),
4129 top_stack->blocktype = stFile;
4131 = (debug_info->symbolic_header.isymMax
4132 + debug_info->symbolic_header.ipdMax
4133 + debug_info->symbolic_header.iextMax);
4135 ext_ptr = PST_PRIVATE (pst)->extern_tab;
4136 for (i = PST_PRIVATE (pst)->extern_count; --i >= 0; ext_ptr++)
4137 parse_external (ext_ptr, fh->fBigendian, pst->section_offsets, pst->objfile);
4139 /* If there are undefined symbols, tell the user.
4140 The alpha has an undefined symbol for every symbol that is
4141 from a shared library, so tell the user only if verbose is on. */
4142 if (info_verbose && n_undef_symbols)
4144 printf_filtered ("File %s contains %d unresolved references:",
4145 st->filename, n_undef_symbols);
4146 printf_filtered ("\n\t%4d variables\n\t%4d procedures\n\t%4d labels\n",
4147 n_undef_vars, n_undef_procs, n_undef_labels);
4148 n_undef_symbols = n_undef_labels = n_undef_vars = n_undef_procs = 0;
4155 /* Sort the symbol table now, we are done adding symbols to it. */
4156 sort_symtab_syms (st);
4161 /* Now link the psymtab and the symtab. */
4164 current_objfile = NULL;
4167 /* Ancillary parsing procedures. */
4169 /* Return 1 if the symbol pointed to by SH has a cross reference
4170 to an opaque aggregate type, else 0. */
4173 has_opaque_xref (FDR *fh, SYMR *sh)
4180 if (sh->index == indexNil)
4183 ax = debug_info->external_aux + fh->iauxBase + sh->index;
4184 (*debug_swap->swap_tir_in) (fh->fBigendian, &ax->a_ti, &tir);
4185 if (tir.bt != btStruct && tir.bt != btUnion && tir.bt != btEnum)
4189 (*debug_swap->swap_rndx_in) (fh->fBigendian, &ax->a_rndx, rn);
4190 if (rn->rfd == 0xfff)
4191 rf = AUX_GET_ISYM (fh->fBigendian, ax + 1);
4199 /* Lookup the type at relative index RN. Return it in TPP
4200 if found and in any event come up with its name PNAME.
4201 BIGEND says whether aux symbols are big-endian or not (from fh->fBigendian).
4202 Return value says how many aux symbols we ate. */
4205 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. */
4206 char **pname, int bigend, char *sym_name)
4215 struct mdebug_pending *pend;
4217 *tpp = (struct type *) NULL;
4219 (*debug_swap->swap_rndx_in) (bigend, &ax->a_rndx, rn);
4221 /* Escape index means 'the next one' */
4222 if (rn->rfd == 0xfff)
4225 rf = AUX_GET_ISYM (bigend, ax + 1);
4232 /* mips cc uses a rf of -1 for opaque struct definitions.
4233 Set TYPE_FLAG_STUB for these types so that check_typedef will
4234 resolve them if the struct gets defined in another compilation unit. */
4237 *pname = "<undefined>";
4238 *tpp = init_type (type_code, 0, TYPE_FLAG_STUB, (char *) NULL, current_objfile);
4242 /* mips cc uses an escaped rn->index of 0 for struct return types
4243 of procedures that were compiled without -g. These will always remain
4245 if (rn->rfd == 0xfff && rn->index == 0)
4247 *pname = "<undefined>";
4251 /* Find the relative file descriptor and the symbol in it. */
4252 fh = get_rfd (fd, rf);
4253 xref_fd = fh - debug_info->fdr;
4255 if (rn->index >= fh->csym)
4257 /* File indirect entry is corrupt. */
4258 *pname = "<illegal>";
4259 bad_rfd_entry_complaint (sym_name, xref_fd, rn->index);
4263 /* If we have processed this symbol then we left a forwarding
4264 pointer to the type in the pending list. If not, we`ll put
4265 it in a list of pending types, to be processed later when
4266 the file will be. In any event, we collect the name for the
4269 esh = ((char *) debug_info->external_sym
4270 + ((fh->isymBase + rn->index)
4271 * debug_swap->external_sym_size));
4272 (*debug_swap->swap_sym_in) (cur_bfd, esh, &sh);
4274 /* Make sure that this type of cross reference can be handled. */
4275 if ((sh.sc != scInfo
4276 || (sh.st != stBlock && sh.st != stTypedef && sh.st != stIndirect
4277 && sh.st != stStruct && sh.st != stUnion
4278 && sh.st != stEnum))
4279 && (sh.st != stBlock || !SC_IS_COMMON (sh.sc)))
4281 /* File indirect entry is corrupt. */
4282 *pname = "<illegal>";
4283 bad_rfd_entry_complaint (sym_name, xref_fd, rn->index);
4287 *pname = debug_info->ss + fh->issBase + sh.iss;
4289 pend = is_pending_symbol (fh, esh);
4294 /* We have not yet seen this type. */
4296 if ((sh.iss == 0 && sh.st == stTypedef) || sh.st == stIndirect)
4300 /* alpha cc puts out a stTypedef with a sh.iss of zero for
4302 a) forward declarations of structs/unions/enums which are not
4303 defined in this compilation unit.
4304 For these the type will be void. This is a bad design decision
4305 as cross referencing across compilation units is impossible
4306 due to the missing name.
4307 b) forward declarations of structs/unions/enums/typedefs which
4308 are defined later in this file or in another file in the same
4309 compilation unit. Irix5 cc uses a stIndirect symbol for this.
4310 Simply cross reference those again to get the true type.
4311 The forward references are not entered in the pending list and
4312 in the symbol table. */
4314 (*debug_swap->swap_tir_in) (bigend,
4315 &(debug_info->external_aux
4316 + fh->iauxBase + sh.index)->a_ti,
4318 if (tir.tq0 != tqNil)
4319 complaint (&symfile_complaints,
4320 "illegal tq0 in forward typedef for %s", sym_name);
4324 *tpp = init_type (type_code, 0, 0, (char *) NULL,
4326 *pname = "<undefined>";
4333 (debug_info->external_aux
4334 + fh->iauxBase + sh.index + 1),
4335 tpp, type_code, pname,
4336 fh->fBigendian, sym_name);
4340 /* Follow a forward typedef. This might recursively
4341 call cross_ref till we get a non typedef'ed type.
4342 FIXME: This is not correct behaviour, but gdb currently
4343 cannot handle typedefs without type copying. Type
4344 copying is impossible as we might have mutual forward
4345 references between two files and the copied type would not
4346 get filled in when we later parse its definition. */
4347 *tpp = parse_type (xref_fd,
4348 debug_info->external_aux + fh->iauxBase,
4352 debug_info->ss + fh->issBase + sh.iss);
4353 add_pending (fh, esh, *tpp);
4357 complaint (&symfile_complaints,
4358 "illegal bt %d in forward typedef for %s", tir.bt,
4360 *tpp = init_type (type_code, 0, 0, (char *) NULL,
4366 else if (sh.st == stTypedef)
4368 /* Parse the type for a normal typedef. This might recursively call
4369 cross_ref till we get a non typedef'ed type.
4370 FIXME: This is not correct behaviour, but gdb currently
4371 cannot handle typedefs without type copying. But type copying is
4372 impossible as we might have mutual forward references between
4373 two files and the copied type would not get filled in when
4374 we later parse its definition. */
4375 *tpp = parse_type (xref_fd,
4376 debug_info->external_aux + fh->iauxBase,
4380 debug_info->ss + fh->issBase + sh.iss);
4384 /* Cross reference to a struct/union/enum which is defined
4385 in another file in the same compilation unit but that file
4386 has not been parsed yet.
4387 Initialize the type only, it will be filled in when
4388 it's definition is parsed. */
4389 *tpp = init_type (type_code, 0, 0, (char *) NULL, current_objfile);
4391 add_pending (fh, esh, *tpp);
4394 /* We used one auxent normally, two if we got a "next one" rf. */
4399 /* Quick&dirty lookup procedure, to avoid the MI ones that require
4400 keeping the symtab sorted */
4402 static struct symbol *
4403 mylookup_symbol (char *name, register struct block *block,
4404 namespace_enum namespace, enum address_class class)
4410 ALL_BLOCK_SYMBOLS (block, i, sym)
4412 if (SYMBOL_NAME (sym)[0] == inc
4413 && SYMBOL_NAMESPACE (sym) == namespace
4414 && SYMBOL_CLASS (sym) == class
4415 && strcmp (SYMBOL_NAME (sym), name) == 0)
4419 block = BLOCK_SUPERBLOCK (block);
4421 return mylookup_symbol (name, block, namespace, class);
4426 /* Add a new symbol S to a block B.
4427 Infrequently, we will need to reallocate the block to make it bigger.
4428 We only detect this case when adding to top_stack->cur_block, since
4429 that's the only time we know how big the block is. FIXME. */
4432 add_symbol (struct symbol *s, struct block *b)
4434 int nsyms = BLOCK_NSYMS (b)++;
4435 struct block *origb;
4436 struct parse_stack *stackp;
4438 if (b == top_stack->cur_block &&
4439 nsyms >= top_stack->maxsyms)
4441 complaint (&symfile_complaints, "block containing %s overfilled",
4443 /* In this case shrink_block is actually grow_block, since
4444 BLOCK_NSYMS(b) is larger than its current size. */
4446 b = shrink_block (top_stack->cur_block, top_stack->cur_st);
4448 /* Now run through the stack replacing pointers to the
4449 original block. shrink_block has already done this
4450 for the blockvector and BLOCK_FUNCTION. */
4451 for (stackp = top_stack; stackp; stackp = stackp->next)
4453 if (stackp->cur_block == origb)
4455 stackp->cur_block = b;
4456 stackp->maxsyms = BLOCK_NSYMS (b);
4460 BLOCK_SYM (b, nsyms) = s;
4463 /* Add a new block B to a symtab S */
4466 add_block (struct block *b, struct symtab *s)
4468 struct blockvector *bv = BLOCKVECTOR (s);
4470 bv = (struct blockvector *) xrealloc ((void *) bv,
4471 (sizeof (struct blockvector)
4472 + BLOCKVECTOR_NBLOCKS (bv)
4473 * sizeof (bv->block)));
4474 if (bv != BLOCKVECTOR (s))
4475 BLOCKVECTOR (s) = bv;
4477 BLOCKVECTOR_BLOCK (bv, BLOCKVECTOR_NBLOCKS (bv)++) = b;
4480 /* Add a new linenumber entry (LINENO,ADR) to a linevector LT.
4481 MIPS' linenumber encoding might need more than one byte
4482 to describe it, LAST is used to detect these continuation lines.
4484 Combining lines with the same line number seems like a bad idea.
4485 E.g: There could be a line number entry with the same line number after the
4486 prologue and GDB should not ignore it (this is a better way to find
4487 a prologue than mips_skip_prologue).
4488 But due to the compressed line table format there are line number entries
4489 for the same line which are needed to bridge the gap to the next
4490 line number entry. These entries have a bogus address info with them
4491 and we are unable to tell them from intended duplicate line number
4493 This is another reason why -ggdb debugging format is preferable. */
4496 add_line (struct linetable *lt, int lineno, CORE_ADDR adr, int last)
4498 /* DEC c89 sometimes produces zero linenos which confuse gdb.
4499 Change them to something sensible. */
4503 last = -2; /* make sure we record first line */
4505 if (last == lineno) /* skip continuation lines */
4508 lt->item[lt->nitems].line = lineno;
4509 lt->item[lt->nitems++].pc = adr << 2;
4513 /* Sorting and reordering procedures */
4515 /* Blocks with a smaller low bound should come first */
4518 compare_blocks (const void *arg1, const void *arg2)
4520 register int addr_diff;
4521 struct block **b1 = (struct block **) arg1;
4522 struct block **b2 = (struct block **) arg2;
4524 addr_diff = (BLOCK_START ((*b1))) - (BLOCK_START ((*b2)));
4526 return (BLOCK_END ((*b2))) - (BLOCK_END ((*b1)));
4530 /* Sort the blocks of a symtab S.
4531 Reorder the blocks in the blockvector by code-address,
4532 as required by some MI search routines */
4535 sort_blocks (struct symtab *s)
4537 struct blockvector *bv = BLOCKVECTOR (s);
4539 if (BLOCKVECTOR_NBLOCKS (bv) <= 2)
4542 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) == 0)
4543 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = 0;
4544 if (BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) == 0)
4545 BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) = 0;
4549 * This is very unfortunate: normally all functions are compiled in
4550 * the order they are found, but if the file is compiled -O3 things
4551 * are very different. It would be nice to find a reliable test
4552 * to detect -O3 images in advance.
4554 if (BLOCKVECTOR_NBLOCKS (bv) > 3)
4555 qsort (&BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK),
4556 BLOCKVECTOR_NBLOCKS (bv) - FIRST_LOCAL_BLOCK,
4557 sizeof (struct block *),
4561 register CORE_ADDR high = 0;
4562 register int i, j = BLOCKVECTOR_NBLOCKS (bv);
4564 for (i = FIRST_LOCAL_BLOCK; i < j; i++)
4565 if (high < BLOCK_END (BLOCKVECTOR_BLOCK (bv, i)))
4566 high = BLOCK_END (BLOCKVECTOR_BLOCK (bv, i));
4567 BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) = high;
4570 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)) =
4571 BLOCK_START (BLOCKVECTOR_BLOCK (bv, FIRST_LOCAL_BLOCK));
4573 BLOCK_START (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
4574 BLOCK_START (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
4575 BLOCK_END (BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK)) =
4576 BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK));
4580 /* Constructor/restructor/destructor procedures */
4582 /* Allocate a new symtab for NAME. Needs an estimate of how many symbols
4583 MAXSYMS and linenumbers MAXLINES we'll put in it */
4585 static struct symtab *
4586 new_symtab (char *name, int maxsyms, int maxlines, struct objfile *objfile)
4588 struct symtab *s = allocate_symtab (name, objfile);
4590 LINETABLE (s) = new_linetable (maxlines);
4592 /* All symtabs must have at least two blocks */
4593 BLOCKVECTOR (s) = new_bvect (2);
4594 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK) = new_block (maxsyms);
4595 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) = new_block (maxsyms);
4596 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)) =
4597 BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK);
4599 s->free_code = free_linetable;
4600 s->debugformat = obsavestring ("ECOFF", 5,
4601 &objfile->symbol_obstack);
4605 /* Allocate a new partial_symtab NAME */
4607 static struct partial_symtab *
4608 new_psymtab (char *name, struct objfile *objfile)
4610 struct partial_symtab *psymtab;
4612 psymtab = allocate_psymtab (name, objfile);
4613 psymtab->section_offsets = objfile->section_offsets;
4615 /* Keep a backpointer to the file's symbols */
4617 psymtab->read_symtab_private = ((char *)
4618 obstack_alloc (&objfile->psymbol_obstack,
4619 sizeof (struct symloc)));
4620 memset (psymtab->read_symtab_private, 0, sizeof (struct symloc));
4621 CUR_BFD (psymtab) = cur_bfd;
4622 DEBUG_SWAP (psymtab) = debug_swap;
4623 DEBUG_INFO (psymtab) = debug_info;
4624 PENDING_LIST (psymtab) = pending_list;
4626 /* The way to turn this into a symtab is to call... */
4627 psymtab->read_symtab = mdebug_psymtab_to_symtab;
4632 /* Allocate a linetable array of the given SIZE. Since the struct
4633 already includes one item, we subtract one when calculating the
4634 proper size to allocate. */
4636 static struct linetable *
4637 new_linetable (int size)
4639 struct linetable *l;
4641 size = (size - 1) * sizeof (l->item) + sizeof (struct linetable);
4642 l = (struct linetable *) xmalloc (size);
4647 /* Oops, too big. Shrink it. This was important with the 2.4 linetables,
4648 I am not so sure about the 3.4 ones.
4650 Since the struct linetable already includes one item, we subtract one when
4651 calculating the proper size to allocate. */
4653 static struct linetable *
4654 shrink_linetable (struct linetable *lt)
4657 return (struct linetable *) xrealloc ((void *) lt,
4658 (sizeof (struct linetable)
4660 * sizeof (lt->item))));
4663 /* Allocate and zero a new blockvector of NBLOCKS blocks. */
4665 static struct blockvector *
4666 new_bvect (int nblocks)
4668 struct blockvector *bv;
4671 size = sizeof (struct blockvector) + nblocks * sizeof (struct block *);
4672 bv = (struct blockvector *) xzalloc (size);
4674 BLOCKVECTOR_NBLOCKS (bv) = nblocks;
4679 /* Allocate and zero a new block of MAXSYMS symbols */
4681 static struct block *
4682 new_block (int maxsyms)
4684 int size = sizeof (struct block) + (maxsyms - 1) * sizeof (struct symbol *);
4686 return (struct block *) xzalloc (size);
4689 /* Ooops, too big. Shrink block B in symtab S to its minimal size.
4690 Shrink_block can also be used by add_symbol to grow a block. */
4692 static struct block *
4693 shrink_block (struct block *b, struct symtab *s)
4696 struct blockvector *bv = BLOCKVECTOR (s);
4699 /* Just reallocate it and fix references to the old one */
4701 new = (struct block *) xrealloc ((void *) b,
4702 (sizeof (struct block)
4703 + ((BLOCK_NSYMS (b) - 1)
4704 * sizeof (struct symbol *))));
4706 /* FIXME: Not worth hashing this block as it's built. */
4707 /* All callers should have created the block with new_block (), which
4708 would mean it was not previously hashed. Make sure. */
4709 gdb_assert (BLOCK_HASHTABLE (new) == 0);
4711 /* Should chase pointers to old one. Fortunately, that`s just
4712 the block`s function and inferior blocks */
4713 if (BLOCK_FUNCTION (new) && SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) == b)
4714 SYMBOL_BLOCK_VALUE (BLOCK_FUNCTION (new)) = new;
4715 for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); i++)
4716 if (BLOCKVECTOR_BLOCK (bv, i) == b)
4717 BLOCKVECTOR_BLOCK (bv, i) = new;
4718 else if (BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) == b)
4719 BLOCK_SUPERBLOCK (BLOCKVECTOR_BLOCK (bv, i)) = new;
4723 /* Create a new symbol with printname NAME */
4725 static struct symbol *
4726 new_symbol (char *name)
4728 struct symbol *s = ((struct symbol *)
4729 obstack_alloc (¤t_objfile->symbol_obstack,
4730 sizeof (struct symbol)));
4732 memset (s, 0, sizeof (*s));
4733 SYMBOL_NAME (s) = obsavestring (name, strlen (name),
4734 ¤t_objfile->symbol_obstack);
4735 SYMBOL_LANGUAGE (s) = psymtab_language;
4736 SYMBOL_INIT_DEMANGLED_NAME (s, ¤t_objfile->symbol_obstack);
4740 /* Create a new type with printname NAME */
4742 static struct type *
4743 new_type (char *name)
4747 t = alloc_type (current_objfile);
4748 TYPE_NAME (t) = name;
4749 TYPE_CPLUS_SPECIFIC (t) = (struct cplus_struct_type *) &cplus_struct_default;
4753 /* Read ECOFF debugging information from a BFD section. This is
4754 called from elfread.c. It parses the section into a
4755 ecoff_debug_info struct, and then lets the rest of the file handle
4759 elfmdebug_build_psymtabs (struct objfile *objfile,
4760 const struct ecoff_debug_swap *swap, asection *sec)
4762 bfd *abfd = objfile->obfd;
4763 struct ecoff_debug_info *info;
4765 info = ((struct ecoff_debug_info *)
4766 obstack_alloc (&objfile->psymbol_obstack,
4767 sizeof (struct ecoff_debug_info)));
4769 if (!(*swap->read_debug_info) (abfd, sec, info))
4770 error ("Error reading ECOFF debugging information: %s",
4771 bfd_errmsg (bfd_get_error ()));
4773 mdebug_build_psymtabs (objfile, swap, info);
4777 /* Things used for calling functions in the inferior.
4778 These functions are exported to our companion
4779 mips-tdep.c file and are here because they play
4780 with the symbol-table explicitly. */
4782 /* Sigtramp: make sure we have all the necessary information
4783 about the signal trampoline code. Since the official code
4784 from MIPS does not do so, we make up that information ourselves.
4785 If they fix the library (unlikely) this code will neutralize itself. */
4787 /* FIXME: This function is called only by mips-tdep.c. It needs to be
4788 here because it calls functions defined in this file, but perhaps
4789 this could be handled in a better way. Only compile it in when
4790 tm-mips.h is included. */
4795 fixup_sigtramp (void)
4799 struct block *b, *b0 = NULL;
4801 sigtramp_address = -1;
4803 /* We have to handle the following cases here:
4804 a) The Mips library has a sigtramp label within sigvec.
4805 b) Irix has a _sigtramp which we want to use, but it also has sigvec. */
4806 s = lookup_symbol ("sigvec", 0, VAR_NAMESPACE, 0, NULL);
4809 b0 = SYMBOL_BLOCK_VALUE (s);
4810 s = lookup_symbol ("sigtramp", b0, VAR_NAMESPACE, 0, NULL);
4814 /* No sigvec or no sigtramp inside sigvec, try _sigtramp. */
4815 s = lookup_symbol ("_sigtramp", 0, VAR_NAMESPACE, 0, NULL);
4818 /* But maybe this program uses its own version of sigvec */
4822 /* Did we or MIPSco fix the library ? */
4823 if (SYMBOL_CLASS (s) == LOC_BLOCK)
4825 sigtramp_address = BLOCK_START (SYMBOL_BLOCK_VALUE (s));
4826 sigtramp_end = BLOCK_END (SYMBOL_BLOCK_VALUE (s));
4830 sigtramp_address = SYMBOL_VALUE (s);
4831 sigtramp_end = sigtramp_address + 0x88; /* black magic */
4833 /* But what symtab does it live in ? */
4834 st = find_pc_symtab (SYMBOL_VALUE (s));
4837 * Ok, there goes the fix: turn it into a procedure, with all the
4838 * needed info. Note we make it a nested procedure of sigvec,
4839 * which is the way the (assembly) code is actually written.
4841 SYMBOL_NAMESPACE (s) = VAR_NAMESPACE;
4842 SYMBOL_CLASS (s) = LOC_BLOCK;
4843 SYMBOL_TYPE (s) = init_type (TYPE_CODE_FUNC, 4, 0, (char *) NULL,
4845 TYPE_TARGET_TYPE (SYMBOL_TYPE (s)) = mdebug_type_void;
4847 /* Need a block to allocate MIPS_EFI_SYMBOL_NAME in */
4849 SYMBOL_BLOCK_VALUE (s) = b;
4850 BLOCK_START (b) = sigtramp_address;
4851 BLOCK_END (b) = sigtramp_end;
4852 BLOCK_FUNCTION (b) = s;
4853 BLOCK_SUPERBLOCK (b) = BLOCK_SUPERBLOCK (b0);
4857 /* Make a MIPS_EFI_SYMBOL_NAME entry for it */
4859 struct mips_extra_func_info *e =
4860 ((struct mips_extra_func_info *)
4861 xzalloc (sizeof (struct mips_extra_func_info)));
4863 e->numargs = 0; /* the kernel thinks otherwise */
4864 e->pdr.frameoffset = 32;
4865 e->pdr.framereg = SP_REGNUM;
4866 /* Note that setting pcreg is no longer strictly necessary as
4867 mips_frame_saved_pc is now aware of signal handler frames. */
4868 e->pdr.pcreg = PC_REGNUM;
4869 e->pdr.regmask = -2;
4870 /* Offset to saved r31, in the sigtramp case the saved registers
4871 are above the frame in the sigcontext.
4872 We have 4 alignment bytes, 12 bytes for onstack, mask and pc,
4873 32 * 4 bytes for the general registers, 12 bytes for mdhi, mdlo, ownedfp
4874 and 32 * 4 bytes for the floating point registers. */
4875 e->pdr.regoffset = 4 + 12 + 31 * 4;
4876 e->pdr.fregmask = -1;
4877 /* Offset to saved f30 (first saved *double* register). */
4878 e->pdr.fregoffset = 4 + 12 + 32 * 4 + 12 + 30 * 4;
4879 e->pdr.isym = (long) s;
4880 e->pdr.adr = sigtramp_address;
4882 current_objfile = st->objfile; /* Keep new_symbol happy */
4883 s = new_symbol (MIPS_EFI_SYMBOL_NAME);
4884 SYMBOL_VALUE (s) = (long) e;
4885 SYMBOL_NAMESPACE (s) = LABEL_NAMESPACE;
4886 SYMBOL_CLASS (s) = LOC_CONST;
4887 SYMBOL_TYPE (s) = mdebug_type_void;
4888 current_objfile = NULL;
4891 BLOCK_SYM (b, BLOCK_NSYMS (b)++) = s;
4894 #endif /* TM_MIPS_H */
4897 _initialize_mdebugread (void)
4900 init_type (TYPE_CODE_VOID, 1,
4902 "void", (struct objfile *) NULL);
4904 init_type (TYPE_CODE_INT, 1,
4906 "char", (struct objfile *) NULL);
4907 mdebug_type_unsigned_char =
4908 init_type (TYPE_CODE_INT, 1,
4910 "unsigned char", (struct objfile *) NULL);
4912 init_type (TYPE_CODE_INT, 2,
4914 "short", (struct objfile *) NULL);
4915 mdebug_type_unsigned_short =
4916 init_type (TYPE_CODE_INT, 2,
4918 "unsigned short", (struct objfile *) NULL);
4919 mdebug_type_int_32 =
4920 init_type (TYPE_CODE_INT, 4,
4922 "int", (struct objfile *) NULL);
4923 mdebug_type_unsigned_int_32 =
4924 init_type (TYPE_CODE_INT, 4,
4926 "unsigned int", (struct objfile *) NULL);
4927 mdebug_type_int_64 =
4928 init_type (TYPE_CODE_INT, 8,
4930 "int", (struct objfile *) NULL);
4931 mdebug_type_unsigned_int_64 =
4932 init_type (TYPE_CODE_INT, 8,
4934 "unsigned int", (struct objfile *) NULL);
4935 mdebug_type_long_32 =
4936 init_type (TYPE_CODE_INT, 4,
4938 "long", (struct objfile *) NULL);
4939 mdebug_type_unsigned_long_32 =
4940 init_type (TYPE_CODE_INT, 4,
4942 "unsigned long", (struct objfile *) NULL);
4943 mdebug_type_long_64 =
4944 init_type (TYPE_CODE_INT, 8,
4946 "long", (struct objfile *) NULL);
4947 mdebug_type_unsigned_long_64 =
4948 init_type (TYPE_CODE_INT, 8,
4950 "unsigned long", (struct objfile *) NULL);
4951 mdebug_type_long_long_64 =
4952 init_type (TYPE_CODE_INT, 8,
4954 "long long", (struct objfile *) NULL);
4955 mdebug_type_unsigned_long_long_64 =
4956 init_type (TYPE_CODE_INT, 8,
4958 "unsigned long long", (struct objfile *) NULL);
4959 mdebug_type_adr_32 =
4960 init_type (TYPE_CODE_PTR, 4,
4962 "adr_32", (struct objfile *) NULL);
4963 TYPE_TARGET_TYPE (mdebug_type_adr_32) = mdebug_type_void;
4964 mdebug_type_adr_64 =
4965 init_type (TYPE_CODE_PTR, 8,
4967 "adr_64", (struct objfile *) NULL);
4968 TYPE_TARGET_TYPE (mdebug_type_adr_64) = mdebug_type_void;
4970 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
4972 "float", (struct objfile *) NULL);
4973 mdebug_type_double =
4974 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
4976 "double", (struct objfile *) NULL);
4977 mdebug_type_complex =
4978 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
4980 "complex", (struct objfile *) NULL);
4981 TYPE_TARGET_TYPE (mdebug_type_complex) = mdebug_type_float;
4982 mdebug_type_double_complex =
4983 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
4985 "double complex", (struct objfile *) NULL);
4986 TYPE_TARGET_TYPE (mdebug_type_double_complex) = mdebug_type_double;
4988 /* Is a "string" the way btString means it the same as TYPE_CODE_STRING?
4990 mdebug_type_string =
4991 init_type (TYPE_CODE_STRING,
4992 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
4994 (struct objfile *) NULL);
4996 /* We use TYPE_CODE_INT to print these as integers. Does this do any
4997 good? Would we be better off with TYPE_CODE_ERROR? Should
4998 TYPE_CODE_ERROR print things in hex if it knows the size? */
4999 mdebug_type_fixed_dec =
5000 init_type (TYPE_CODE_INT,
5001 TARGET_INT_BIT / TARGET_CHAR_BIT,
5003 (struct objfile *) NULL);
5005 mdebug_type_float_dec =
5006 init_type (TYPE_CODE_ERROR,
5007 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
5008 0, "floating decimal",
5009 (struct objfile *) NULL);
5011 nodebug_func_symbol_type = init_type (TYPE_CODE_FUNC, 1, 0,
5012 "<function, no debug info>", NULL);
5013 TYPE_TARGET_TYPE (nodebug_func_symbol_type) = mdebug_type_int;
5014 nodebug_var_symbol_type =
5015 init_type (TYPE_CODE_INT, TARGET_INT_BIT / HOST_CHAR_BIT, 0,
5016 "<variable, no debug info>", NULL);