2ad5709f00
* Makefile.in (SFILES): Add bcache.c.
(symtab_h): Add bcache.h.
(HFILES_NO_SRCDIR): add bcache.h
(COMMON_OBJS): Add bcache.o
(bcache.o): New target.
* dbxread.c (start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
* hpread.c (hpread_start_symtab): Ditto.
* os9kread.c (os9k_start_psymtab): Ditto.
* stabsread.h (start_psymtab): Ditto.
* {symfile.c, symfile.h} (start_psymtab_common): Ditto.
* maint.c (maintenance_print_statistics): Call
print_symbol_bcache_statistics.
* objfiles.c (allocate_objfile): Initialize psymbol bcache malloc
and free pointers.
* solib.c (allocate_rt_common_objfile): Ditto.
* symfile.c (reread_symbols): Ditto.
(free_objfile): Free psymbol bcache when objfile is freed.
(objfile_relocate): Use new indirect psymbol pointers.
* objfiles.h (struct objfile): Add psymbol cache.
* symfile.c (compare_psymbols): Now passed pointers to pointers to
psymbols.
(reread_symbols): Free psymbol bcache when freeing other objfile
resources.
(add_psymbol_to_list, add_psymbol_addr_to_list): Initialize new
psymbol using the psymbol bcache.
(init_psymbol_list): Psymbol lists now contain pointers rather than
the actual psymbols.
* symfile.h (psymbol_allocation_list): Psymbol lists now dynamically
grown arrays of pointers.
(ADD_PSYMBOL_VT_TO_LIST): Initialize new symbol using the psymbol
bcache.
* symmisc.c (print_partial_symbols): Now takes pointer to pointer
to partial symbol.
(print_symbol_bcache_statistics): New function to print per objfile
bcache statistics.
(print_partial_symbol, print_partial_symbols,
maintenance_check_symtabs, extend_psymbol_list):
Account for change to pointer to pointer to partial symbol.
* symtab.c (find_pc_psymbol, lookup_partial_symbol, decode_line_2,
make_symbol_completion_list):
Account for change to pointer to pointer to partial symbol.
* symtab.h (bcache.h): Include.
* xcoffread.c (xcoff_start_psymtab): Make global_syms & static_syms
type "partial_symbol **".
226 lines
6.6 KiB
C
226 lines
6.6 KiB
C
/* Include file for stabs debugging format support functions.
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Copyright 1986-1991, 1992, 1993 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Definitions, prototypes, etc for stabs debugging format support
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functions.
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Variables declared in this file can be defined by #define-ing
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the name EXTERN to null. It is used to declare variables that
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are normally extern, but which get defined in a single module
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using this technique. */
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#ifndef EXTERN
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#define EXTERN extern
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#endif
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/* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
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#ifndef STAB_REG_TO_REGNUM
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#define STAB_REG_TO_REGNUM(VALUE) (VALUE)
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#endif
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/* Hash table of global symbols whose values are not known yet.
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They are chained thru the SYMBOL_VALUE_CHAIN, since we don't
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have the correct data for that slot yet.
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The use of the LOC_BLOCK code in this chain is nonstandard--
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it refers to a FORTRAN common block rather than the usual meaning, and
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the such LOC_BLOCK symbols use their fields in nonstandard ways. */
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EXTERN struct symbol *global_sym_chain[HASHSIZE];
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extern void common_block_start PARAMS ((char *, struct objfile *));
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extern void common_block_end PARAMS ((struct objfile *));
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/* Kludge for xcoffread.c */
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struct pending_stabs
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{
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int count;
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int length;
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char *stab[1];
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};
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EXTERN struct pending_stabs *global_stabs;
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/* The type code that process_one_symbol saw on its previous invocation.
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Used to detect pairs of N_SO symbols. */
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EXTERN int previous_stab_code;
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/* Support for Sun changes to dbx symbol format */
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/* For each identified header file, we have a table of types defined
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in that header file.
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header_files maps header file names to their type tables.
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It is a vector of n_header_files elements.
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Each element describes one header file.
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It contains a vector of types.
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Sometimes it can happen that the same header file produces
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different results when included in different places.
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This can result from conditionals or from different
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things done before including the file.
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When this happens, there are multiple entries for the file in this table,
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one entry for each distinct set of results.
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The entries are distinguished by the INSTANCE field.
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The INSTANCE field appears in the N_BINCL and N_EXCL symbol table and is
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used to match header-file references to their corresponding data. */
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struct header_file
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{
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/* Name of header file */
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char *name;
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/* Numeric code distinguishing instances of one header file that produced
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different results when included. It comes from the N_BINCL or N_EXCL. */
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int instance;
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/* Pointer to vector of types */
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struct type **vector;
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/* Allocated length (# elts) of that vector */
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int length;
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};
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EXTERN struct header_file *header_files;
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EXTERN int n_header_files;
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EXTERN int n_allocated_header_files;
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/* Within each object file, various header files are assigned numbers.
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A type is defined or referred to with a pair of numbers
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(FILENUM,TYPENUM) where FILENUM is the number of the header file
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and TYPENUM is the number within that header file.
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TYPENUM is the index within the vector of types for that header file.
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FILENUM == 1 is special; it refers to the main source of the object file,
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and not to any header file. FILENUM != 1 is interpreted by looking it up
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in the following table, which contains indices in header_files. */
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EXTERN int *this_object_header_files;
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EXTERN int n_this_object_header_files;
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EXTERN int n_allocated_this_object_header_files;
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extern struct complaint unknown_symtype_complaint;
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extern struct complaint unknown_symchar_complaint;
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extern struct type *
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read_type PARAMS ((char **, struct objfile *));
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extern void
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cleanup_undefined_types PARAMS ((void));
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extern struct type **
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dbx_lookup_type PARAMS ((int [2]));
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extern long
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read_number PARAMS ((char **, int));
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extern void
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add_undefined_type PARAMS ((struct type *));
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extern struct symbol *
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define_symbol PARAMS ((CORE_ADDR, char *, int, int, struct objfile *));
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extern void
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stabsread_init PARAMS ((void));
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extern void
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stabsread_new_init PARAMS ((void));
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extern void
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start_stabs PARAMS ((void));
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extern void
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end_stabs PARAMS ((void));
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extern void
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finish_global_stabs PARAMS ((struct objfile *objfile));
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EXTERN int os9k_stabs;
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/* COFF files can have multiple .stab sections, if they are linked
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using --split-by-reloc. This linked list is used to pass the
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information into the functions in dbxread.c. */
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struct stab_section_list
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{
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/* Next in list. */
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struct stab_section_list *next;
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/* Stab section. */
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asection *section;
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};
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/* Functions exported by dbxread.c. These are not in stabsread.c because
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they are only used by some stabs readers. */
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extern struct partial_symtab *
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start_psymtab PARAMS ((struct objfile *, struct section_offsets *, char *,
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CORE_ADDR, int, struct partial_symbol **,
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struct partial_symbol **));
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extern struct partial_symtab *
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end_psymtab PARAMS ((struct partial_symtab *, char **, int, int, CORE_ADDR,
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struct partial_symtab **, int));
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extern void
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process_one_symbol PARAMS ((int, int, CORE_ADDR, char *,
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struct section_offsets *, struct objfile *));
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extern void elfstab_build_psymtabs
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PARAMS ((struct objfile *objfile,
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struct section_offsets *section_offsets,
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int mainline,
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file_ptr staboff, unsigned int stabsize,
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file_ptr stabstroffset,
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unsigned int stabstrsize));
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extern void coffstab_build_psymtabs
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PARAMS ((struct objfile *objfile,
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struct section_offsets *section_offsets,
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int mainline,
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CORE_ADDR textaddr, unsigned int textsize,
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struct stab_section_list *stabs,
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file_ptr stabstroffset,
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unsigned int stabstrsize));
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extern void stabsect_build_psymtabs
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PARAMS ((struct objfile *objfile,
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struct section_offsets *section_offsets,
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int mainline,
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char *stab_name,
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char *stabstr_name,
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char *text_name));
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extern void elfstab_offset_sections PARAMS ((struct objfile *,
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struct partial_symtab *));
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#undef EXTERN
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