/* Definitions for reading symbol files into GDB.
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1996
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
This file is part of GDB.
/* This file requires that you first include "bfd.h". */
+/* Opaque declarations. */
+struct objfile;
+struct obstack;
+struct block;
+
/* Partial symbols are stored in the psymbol_cache and pointers to them
are kept in a dynamically grown array that is obtained from malloc and
grown as necessary via realloc. Each objfile typically has two of these,
solib.c to communicate the section addresses in shared objects to
symbol_file_add (). */
-#define MAX_SECTIONS 40
+#define MAX_SECTIONS 64
struct section_addr_info
{
- /* Sections whose names are file format dependant. */
+ /* Sections whose names are file format dependent. */
struct other_sections
{
CORE_ADDR addr;
called during symbol_file_add, when we begin debugging an entirely new
program. */
- void (*sym_new_init) PARAMS ((struct objfile *));
+ void (*sym_new_init) (struct objfile *);
/* Reads any initial information from a symbol file, and initializes the
struct sym_fns SF in preparation for sym_read(). It is called every
time we read a symbol file for any reason. */
- void (*sym_init) PARAMS ((struct objfile *));
+ void (*sym_init) (struct objfile *);
/* sym_read (objfile, mainline)
Reads a symbol file into a psymtab (or possibly a symtab).
symbol file (e.g. shared library or dynamically loaded file)
is being read. */
- void (*sym_read) PARAMS ((struct objfile *, int));
+ void (*sym_read) (struct objfile *, int);
/* Called when we are finished with an objfile. Should do all cleanup
that is specific to the object file format for the particular objfile. */
- void (*sym_finish) PARAMS ((struct objfile *));
+ void (*sym_finish) (struct objfile *);
/* This function produces a file-dependent section_offsets structure,
allocated in the objfile's storage, and based on the parameter.
a string, where NULL means the default, and others are parsed in a file
dependent way. */
- void (*sym_offsets) PARAMS ((struct objfile *, struct section_addr_info *));
+ void (*sym_offsets) (struct objfile *, struct section_addr_info *);
/* Finds the next struct sym_fns. They are allocated and initialized
in whatever module implements the functions pointed to; an
/* The default version of sym_fns.sym_offsets for readers that don't
do anything special. */
-extern void
-default_symfile_offsets PARAMS ((struct objfile * objfile, struct section_addr_info *));
+extern void default_symfile_offsets (struct objfile *objfile,
+ struct section_addr_info *);
-extern void
-extend_psymbol_list PARAMS ((struct psymbol_allocation_list *,
- struct objfile *));
+extern void extend_psymbol_list (struct psymbol_allocation_list *,
+ struct objfile *);
/* Add any kind of symbol to a psymbol_allocation_list. */
/* #include "demangle.h" */
extern void
-add_psymbol_to_list PARAMS ((char *, int, namespace_enum, enum address_class,
- struct psymbol_allocation_list *, long, CORE_ADDR,
- enum language, struct objfile *));
+add_psymbol_to_list (char *, int, namespace_enum, enum address_class,
+ struct psymbol_allocation_list *, long, CORE_ADDR,
+ enum language, struct objfile *);
extern void
-add_psymbol_with_dem_name_to_list PARAMS ((char *, int, char *, int, namespace_enum,
- enum address_class,
- struct psymbol_allocation_list *,
- long, CORE_ADDR,
- enum language, struct objfile *));
+add_psymbol_with_dem_name_to_list (char *, int, char *, int, namespace_enum,
+ enum address_class,
+ struct psymbol_allocation_list *,
+ long, CORE_ADDR,
+ enum language, struct objfile *);
-extern void init_psymbol_list PARAMS ((struct objfile *, int));
+extern void init_psymbol_list (struct objfile *, int);
-extern void
-sort_pst_symbols PARAMS ((struct partial_symtab *));
+extern void sort_pst_symbols (struct partial_symtab *);
-extern struct symtab *
- allocate_symtab PARAMS ((char *, struct objfile *));
+extern struct symtab *allocate_symtab (char *, struct objfile *);
-extern int
-free_named_symtabs PARAMS ((char *));
+extern int free_named_symtabs (char *);
-extern void
-fill_in_vptr_fieldno PARAMS ((struct type *));
+extern void fill_in_vptr_fieldno (struct type *);
-extern void
-add_symtab_fns PARAMS ((struct sym_fns *));
+extern void add_symtab_fns (struct sym_fns *);
-extern void
-init_entry_point_info PARAMS ((struct objfile *));
+extern void init_entry_point_info (struct objfile *);
-extern void
-syms_from_objfile PARAMS ((struct objfile *, struct section_addr_info *, int, int));
+extern void syms_from_objfile (struct objfile *,
+ struct section_addr_info *,
+ struct section_offsets *, int,
+ int, int);
-extern void
-new_symfile_objfile PARAMS ((struct objfile *, int, int));
+extern void new_symfile_objfile (struct objfile *, int, int);
-extern struct objfile *
-symbol_file_add PARAMS ((char *, int, struct section_addr_info *, int, int));
+extern struct objfile *symbol_file_add (char *, int,
+ struct section_addr_info *, int, int);
/* Build (allocate and populate) a section_addr_info struct from
an existing section table. */
/* Free all memory allocated by build_section_addr_info_from_section_table. */
-extern void
-free_section_addr_info (struct section_addr_info *);
+extern void free_section_addr_info (struct section_addr_info *);
-extern struct partial_symtab *
- start_psymtab_common PARAMS ((struct objfile *, struct section_offsets *,
- char *, CORE_ADDR,
- struct partial_symbol **,
- struct partial_symbol **));
+extern struct partial_symtab *start_psymtab_common (struct objfile *,
+ struct section_offsets *,
+ char *, CORE_ADDR,
+ struct partial_symbol **,
+ struct partial_symbol **);
/* Sorting your symbols for fast lookup or alphabetical printing. */
-extern void
-sort_block_syms PARAMS ((struct block *));
+extern void sort_block_syms (struct block *);
-extern void
-sort_symtab_syms PARAMS ((struct symtab *));
+extern void sort_symtab_syms (struct symtab *);
/* Make a copy of the string at PTR with SIZE characters in the symbol obstack
(and add a null character at the end in the copy).
Returns the address of the copy. */
-extern char *
- obsavestring PARAMS ((char *, int, struct obstack *));
+extern char *obsavestring (const char *, int, struct obstack *);
/* Concatenate strings S1, S2 and S3; return the new string.
Space is found in the symbol_obstack. */
-extern char *
- obconcat PARAMS ((struct obstack * obstackp, const char *, const char *,
- const char *));
+extern char *obconcat (struct obstack *obstackp, const char *, const char *,
+ const char *);
/* Variables */
-/* whether to auto load solibs at startup time: 0/1.
-
- On all platforms, 0 means "don't auto load".
+/* 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
+ want to have happen; but for very large programs, the startup time
+ will be excessive, and so if this is a problem, the user can clear
+ this flag and then add the shared library symbols as needed. Note
+ that there is a potential for confusion, since if the shared
+ library symbols are not loaded, commands like "info fun" will *not*
+ report all the functions that are actually present. */
- On HP-UX, > 0 means a threshhold, in megabytes, of symbol table which will
- be auto loaded. When the cumulative size of solib symbol table exceeds
- this threshhold, solibs' symbol tables will not be loaded.
+extern int auto_solib_add;
- On other platforms, > 0 means, "always auto load".
- */
+/* For systems that support it, a threshold size in megabytes. If
+ automatically adding a new library's symbol table to those already
+ known to the debugger would cause the total shared library symbol
+ size to exceed this threshhold, then the shlib's symbols are not
+ added. The threshold is ignored if the user explicitly asks for a
+ shlib to be added, such as when using the "sharedlibrary"
+ command. */
-extern int auto_solib_add;
+extern int auto_solib_limit;
/* From symfile.c */
-extern CORE_ADDR
- entry_point_address PARAMS ((void));
+extern CORE_ADDR entry_point_address (void);
-extern struct partial_symtab *
- allocate_psymtab PARAMS ((char *, struct objfile *));
+extern struct partial_symtab *allocate_psymtab (char *, struct objfile *);
-extern void
-discard_psymtab PARAMS ((struct partial_symtab *));
+extern void discard_psymtab (struct partial_symtab *);
+
+extern void find_lowest_section (bfd *, asection *, void *);
-extern void find_lowest_section PARAMS ((bfd *, asection *, PTR));
+extern bfd *symfile_bfd_open (char *);
-extern bfd *symfile_bfd_open PARAMS ((char *));
+extern int get_section_index (struct objfile *, char *);
/* Utility functions for overlay sections: */
-extern int overlay_debugging;
+extern enum overlay_debugging_state {
+ ovly_off,
+ ovly_on,
+ ovly_auto
+} overlay_debugging;
extern int overlay_cache_invalid;
/* return the "mapped" overlay section containing the PC */
-extern asection *
- find_pc_mapped_section PARAMS ((CORE_ADDR));
+extern asection *find_pc_mapped_section (CORE_ADDR);
/* return any overlay section containing the PC (even in its LMA region) */
-extern asection *
- find_pc_overlay PARAMS ((CORE_ADDR));
+extern asection *find_pc_overlay (CORE_ADDR);
/* return true if the section is an overlay */
-extern int
-section_is_overlay PARAMS ((asection *));
+extern int section_is_overlay (asection *);
/* return true if the overlay section is currently "mapped" */
-extern int
-section_is_mapped PARAMS ((asection *));
+extern int section_is_mapped (asection *);
/* return true if pc belongs to section's VMA */
-extern CORE_ADDR
- pc_in_mapped_range PARAMS ((CORE_ADDR, asection *));
+extern CORE_ADDR pc_in_mapped_range (CORE_ADDR, asection *);
/* return true if pc belongs to section's LMA */
-extern CORE_ADDR
- pc_in_unmapped_range PARAMS ((CORE_ADDR, asection *));
+extern CORE_ADDR pc_in_unmapped_range (CORE_ADDR, asection *);
/* map an address from a section's LMA to its VMA */
-extern CORE_ADDR
- overlay_mapped_address PARAMS ((CORE_ADDR, asection *));
+extern CORE_ADDR overlay_mapped_address (CORE_ADDR, asection *);
/* map an address from a section's VMA to its LMA */
-extern CORE_ADDR
- overlay_unmapped_address PARAMS ((CORE_ADDR, asection *));
+extern CORE_ADDR overlay_unmapped_address (CORE_ADDR, asection *);
/* convert an address in an overlay section (force into VMA range) */
-extern CORE_ADDR
- symbol_overlayed_address PARAMS ((CORE_ADDR, asection *));
+extern CORE_ADDR symbol_overlayed_address (CORE_ADDR, asection *);
+
+/* 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);
+
+extern bfd_byte *symfile_relocate_debug_section (bfd *abfd, asection *sectp,
+ bfd_byte *buf);
/* From dwarfread.c */
extern void
-dwarf_build_psymtabs PARAMS ((struct objfile *, int, file_ptr, unsigned int,
- file_ptr, unsigned int));
+dwarf_build_psymtabs (struct objfile *, int, file_ptr, unsigned int,
+ file_ptr, unsigned int);
/* From dwarf2read.c */
-extern int dwarf2_has_info PARAMS ((bfd * abfd));
+extern int dwarf2_has_info (bfd * abfd);
-extern void dwarf2_build_psymtabs PARAMS ((struct objfile *, int));
+extern void dwarf2_build_psymtabs (struct objfile *, int);
+extern void dwarf2_build_frame_info (struct objfile *);
/* From mdebugread.c */
struct ecoff_debug_info *b;
};
extern void
-mdebug_build_psymtabs PARAMS ((struct objfile *,
- const struct ecoff_debug_swap *,
- struct ecoff_debug_info *));
+mdebug_build_psymtabs (struct objfile *,
+ const struct ecoff_debug_swap *,
+ struct ecoff_debug_info *);
extern void
-elfmdebug_build_psymtabs PARAMS ((struct objfile *,
- const struct ecoff_debug_swap *,
- asection *));
+elfmdebug_build_psymtabs (struct objfile *,
+ const struct ecoff_debug_swap *, asection *);
#endif /* !defined(SYMFILE_H) */