/* Definitions for reading symbol files into GDB.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
+ 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (SYMFILE_H)
#define SYMFILE_H
#include "symtab.h"
/* Opaque declarations. */
-struct section_table;
+struct target_section;
struct objfile;
+struct obj_section;
struct obstack;
struct block;
} other[1];
};
+
+/* A table listing the load segments in a symfile, and which segment
+ each BFD section belongs to. */
+struct symfile_segment_data
+{
+ /* How many segments are present in this file. If there are
+ two, the text segment is the first one and the data segment
+ is the second one. */
+ int num_segments;
+
+ /* If NUM_SEGMENTS is greater than zero, the original base address
+ of each segment. */
+ CORE_ADDR *segment_bases;
+
+ /* If NUM_SEGMENTS is greater than zero, the memory size of each
+ segment. */
+ CORE_ADDR *segment_sizes;
+
+ /* If NUM_SEGMENTS is greater than zero, this is an array of entries
+ recording which segment contains each BFD section.
+ SEGMENT_INFO[I] is S+1 if the I'th BFD section belongs to segment
+ S, or zero if it is not in any segment. */
+ int *segment_info;
+};
+
/* Structure to keep track of symbol reading functions for various
object file types. */
void (*sym_offsets) (struct objfile *, struct section_addr_info *);
+ /* This function produces a format-independent description of
+ the segments of ABFD. Each segment is a unit of the file
+ which may be relocated independently. */
+
+ struct symfile_segment_data *(*sym_segments) (bfd *abfd);
+
+ /* This function should read the linetable from the objfile when
+ the line table cannot be read while processing the debugging
+ information. */
+ void (*sym_read_linetable) (void);
+
/* Finds the next struct sym_fns. They are allocated and
initialized in whatever module implements the functions pointed
to; an initializer calls add_symtab_fns to add them to the global
extern void default_symfile_offsets (struct objfile *objfile,
struct section_addr_info *);
+/* The default version of sym_fns.sym_segments for readers that don't
+ do anything special. */
+
+extern struct symfile_segment_data *default_symfile_segments (bfd *abfd);
extern void extend_psymbol_list (struct psymbol_allocation_list *,
struct objfile *);
extern int free_named_symtabs (char *);
-extern void fill_in_vptr_fieldno (struct type *);
-
extern void add_symtab_fns (struct sym_fns *);
extern void syms_from_objfile (struct objfile *,
existing section table. */
extern struct section_addr_info
- *build_section_addr_info_from_section_table (const struct section_table
+ *build_section_addr_info_from_section_table (const struct target_section
*start,
- const struct section_table
+ const struct target_section
*end);
/* Free all memory allocated by
/* Variables */
+/* If non-zero, gdb will notify the user when it is loading symbols
+ from a file. This is almost always what users will want to have happen;
+ but for programs with lots of dynamically linked libraries, the output
+ can be more noise than signal. */
+
+extern int print_symbol_loading;
+
/* If non-zero, shared library symbols will be added automatically
when the inferior is created, new libraries are loaded, or when
attaching to the inferior. This is almost always what users will
/* From symfile.c */
+extern void set_initial_language (void);
+
extern struct partial_symtab *allocate_psymtab (char *, struct objfile *);
extern void discard_psymtab (struct partial_symtab *);
extern int overlay_cache_invalid;
/* Return the "mapped" overlay section containing the PC. */
-extern asection *find_pc_mapped_section (CORE_ADDR);
+extern struct obj_section *find_pc_mapped_section (CORE_ADDR);
/* Return any overlay section containing the PC (even in its LMA
region). */
-extern asection *find_pc_overlay (CORE_ADDR);
+extern struct obj_section *find_pc_overlay (CORE_ADDR);
/* Return true if the section is an overlay. */
-extern int section_is_overlay (asection *);
+extern int section_is_overlay (struct obj_section *);
/* Return true if the overlay section is currently "mapped". */
-extern int section_is_mapped (asection *);
+extern int section_is_mapped (struct obj_section *);
/* Return true if pc belongs to section's VMA. */
-extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, asection *);
+extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, struct obj_section *);
/* Return true if pc belongs to section's LMA. */
-extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, asection *);
+extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, struct obj_section *);
/* Map an address from a section's LMA to its VMA. */
-extern CORE_ADDR overlay_mapped_address (CORE_ADDR, asection *);
+extern CORE_ADDR overlay_mapped_address (CORE_ADDR, struct obj_section *);
/* Map an address from a section's VMA to its LMA. */
-extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, asection *);
+extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, struct obj_section *);
/* Convert an address in an overlay section (force into VMA range). */
-extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
+extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, struct obj_section *);
/* Load symbols from a file. */
extern void symbol_file_add_main (char *args, int from_tty);
/* Clear GDB symbol tables. */
extern void symbol_file_clear (int from_tty);
+/* Default overlay update function. */
+extern void simple_overlay_update (struct obj_section *);
+
extern bfd_byte *symfile_relocate_debug_section (bfd *abfd, asection *sectp,
bfd_byte * buf);
+extern int symfile_map_offsets_to_segments (bfd *,
+ struct symfile_segment_data *,
+ struct section_offsets *,
+ int, const CORE_ADDR *);
+struct symfile_segment_data *get_symfile_segment_data (bfd *abfd);
+void free_symfile_segment_data (struct symfile_segment_data *data);
+
/* From dwarf2read.c */
extern int dwarf2_has_info (struct objfile *);
extern void dwarf2_build_psymtabs (struct objfile *, int);
extern void dwarf2_build_frame_info (struct objfile *);
+void dwarf2_free_objfile (struct objfile *);
+
/* From mdebugread.c */
/* Hack to force structures to exist before use in parameter list. */
projects / deliverable / binutils-gdb.git / blobdiff