/* Definitions for symbol file management in GDB.
- Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GDB.
#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
#define OBJSTATS struct objstats stats
-extern void print_objfile_statistics PARAMS ((void));
-extern void print_symbol_bcache_statistics PARAMS ((void));
+extern void print_objfile_statistics (void);
+extern void print_symbol_bcache_statistics (void);
+
+/* Number of entries in the minimal symbol hash table. */
+#define MINIMAL_SYMBOL_HASH_SIZE 2039
/* Master structure for keeping track of each file from which
gdb reads symbols. There are several ways these get allocated: 1.
char *name;
- /* TRUE if this objfile was created because the user explicitly caused
- it (e.g., used the add-symbol-file command).
- */
- int user_loaded;
-
- /* TRUE if this objfile was explicitly created to represent a solib.
-
- (If FALSE, the objfile may actually be a solib. This can happen if
- the user created the objfile by using the add-symbol-file command.
- GDB doesn't in that situation actually check whether the file is a
- solib. Rather, the target's implementation of the solib interface
- is responsible for setting this flag when noticing solibs used by
- an inferior.)
- */
- int is_solib;
-
/* Some flag bits for this objfile. */
unsigned short flags;
struct minimal_symbol *msymbols;
int minimal_symbol_count;
+ /* This is a hash table used to index the minimal symbols by name. */
+
+ struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE];
+
+ /* This hash table is used to index the minimal symbols by their
+ demangled names. */
+
+ struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE];
+
/* For object file formats which don't specify fundamental types, gdb
can create such types. For now, it maintains a vector of pointers
to these internally created fundamental types on a per objfile basis,
struct section_offsets *section_offsets;
int num_sections;
- /* set of section begin and end addresses used to map pc addresses
- into sections. Currently on the psymbol_obstack (which makes no
- sense, but I'm not sure it's harming anything). */
+ /* Indexes in the section_offsets array. These are initialized by the
+ *_symfile_offsets() family of functions (som_symfile_offsets,
+ xcoff_symfile_offsets, default_symfile_offsets). In theory they
+ should correspond to the section indexes used by bfd for the
+ current objfile. The exception to this for the time being is the
+ SOM version. */
+
+ int sect_index_text;
+ int sect_index_data;
+ int sect_index_bss;
+ int sect_index_rodata;
+
+ /* These pointers are used to locate the section table, which
+ among other things, is used to map pc addresses into sections.
+ SECTIONS points to the first entry in the table, and
+ SECTIONS_END points to the first location past the last entry
+ in the table. Currently the table is stored on the
+ psymbol_obstack (which makes no sense, but I'm not sure it's
+ harming anything). */
struct obj_section
*sections, *sections_end;
#define OBJF_REORDERED (1 << 2) /* Functions are reordered */
-/* Distinguish between an objfile for a shared library and a
- "vanilla" objfile. */
+/* Distinguish between an objfile for a shared library and a "vanilla"
+ objfile. (If not set, the objfile may still actually be a solib.
+ This can happen if the user created the objfile by using the
+ add-symbol-file command. GDB doesn't in that situation actually
+ check whether the file is a solib. Rather, the target's
+ implementation of the solib interface is responsible for setting
+ this flag when noticing solibs used by an inferior.) */
#define OBJF_SHARED (1 << 3) /* From a shared library */
+/* User requested that this objfile be read in it's entirety. */
+
+#define OBJF_READNOW (1 << 4) /* Immediate full read */
+
+/* This objfile was created because the user explicitly caused it
+ (e.g., used the add-symbol-file command). This bit offers a way
+ for run_command to remove old objfile entries which are no longer
+ valid (i.e., are associated with an old inferior), but to preserve
+ ones that the user explicitly loaded via the add-symbol-file
+ command. */
+
+#define OBJF_USERLOADED (1 << 5) /* User loaded */
+
/* The object file that the main symbol table was loaded from (e.g. the
argument to the "symbol-file" or "file" command). */
/* Declarations for functions defined in objfiles.c */
-extern struct objfile *
- allocate_objfile PARAMS ((bfd *, int, int, int));
+extern struct objfile *allocate_objfile (bfd *, int);
-extern int
-build_objfile_section_table PARAMS ((struct objfile *));
+extern int build_objfile_section_table (struct objfile *);
-extern void objfile_to_front PARAMS ((struct objfile *));
+extern void objfile_to_front (struct objfile *);
-extern void
-unlink_objfile PARAMS ((struct objfile *));
+extern void unlink_objfile (struct objfile *);
-extern void
-free_objfile PARAMS ((struct objfile *));
+extern void free_objfile (struct objfile *);
-extern void
-free_all_objfiles PARAMS ((void));
+extern struct cleanup *make_cleanup_free_objfile (struct objfile *);
-extern void
-objfile_relocate PARAMS ((struct objfile *, struct section_offsets *));
+extern void free_all_objfiles (void);
-extern int
-have_partial_symbols PARAMS ((void));
+extern void objfile_relocate (struct objfile *, struct section_offsets *);
-extern int
-have_full_symbols PARAMS ((void));
+extern int have_partial_symbols (void);
+
+extern int have_full_symbols (void);
/* This operation deletes all objfile entries that represent solibs that
weren't explicitly loaded by the user, via e.g., the add-symbol-file
command.
*/
-extern void
-objfile_purge_solibs PARAMS ((void));
+extern void objfile_purge_solibs (void);
/* Functions for dealing with the minimal symbol table, really a misc
address<->symbol mapping for things we don't have debug symbols for. */
-extern int
-have_minimal_symbols PARAMS ((void));
+extern int have_minimal_symbols (void);
+
+extern struct obj_section *find_pc_section (CORE_ADDR pc);
-extern struct obj_section *
- find_pc_section PARAMS ((CORE_ADDR pc));
+extern struct obj_section *find_pc_sect_section (CORE_ADDR pc,
+ asection * section);
-extern struct obj_section *
- find_pc_sect_section PARAMS ((CORE_ADDR pc, asection * section));
+extern int in_plt_section (CORE_ADDR, char *);
-extern int
-in_plt_section PARAMS ((CORE_ADDR, char *));
+extern int is_in_import_list (char *, struct objfile *);
/* Traverse all object files. ALL_OBJFILES_SAFE works even if you delete
the objfile during the traversal. */
ALL_OBJFILES (objfile) \
ALL_OBJFILE_OSECTIONS (objfile, osect)
+#define SECT_OFF_DATA(objfile) \
+ ((objfile->sect_index_data == -1) \
+ ? (internal_error (__FILE__, __LINE__, "sect_index_data not initialized"), -1) \
+ : objfile->sect_index_data)
+
+#define SECT_OFF_RODATA(objfile) \
+ ((objfile->sect_index_rodata == -1) \
+ ? (internal_error (__FILE__, __LINE__, "sect_index_rodata not initialized"), -1) \
+ : objfile->sect_index_rodata)
+
+#define SECT_OFF_TEXT(objfile) \
+ ((objfile->sect_index_text == -1) \
+ ? (internal_error (__FILE__, __LINE__, "sect_index_text not initialized"), -1) \
+ : objfile->sect_index_text)
+
+/* Sometimes the .bss section is missing from the objfile, so we don't
+ want to die here. Let the users of SECT_OFF_BSS deal with an
+ uninitialized section index. */
+#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss
+
#endif /* !defined (OBJFILES_H) */
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