fe898f56a1
* Makefile.in (SFILES): Add block.c. (block_h): New. (COMMON_OBS): Add block.o. (block.o): New. (x86-64-tdep.o): Add $(block_h). (values.o, valops.o, tracepoint.o, symtab.o, symmisc.o, symfile.o) (stack.o, printcmd.o, p-exp.tab.o, parse.o, objfiles.o) (objc-exp.tab.o, objc-lang.o, nlmread.o, mips-tdep.o, mdebugread.o) (m2-exp.tab.o, linespec.o, jv-lang.o, jv-exp.tab.o, infcmd.o) (f-valprint.o, findvar.o, f-exp.tab.o, expprint.o, coffread.o) (c-exp.tab.o, buildsym.o, breakpoint.o, blockframe.o, ax-gdb.o) (alpha-tdep.o, ada-lang.o, ada-exp.tab.o, mi-cmd-stack.o): Ditto. * value.h: Add opaque declaration for struct block. * parser-defs.h, objc-lang.h, buildsym.h, breakpoint.h: Ditto. * ada-lang.h: Ditto. * x86-64-tdep.c: #include "block.h" * values.c, valops.c, tracepoint.c, symtab.c, symmisc.c: Ditto. * symfile.c, stack.c, printcmd.c, p-exp.y, parse.c: Ditto. * objfiles.c, objc-exp.y, objc-lang.c, nlmread.c: Ditto. * mips-tdep.c, mdebugread.c, m2-exp.y, linespec.c: Ditto. * jv-lang.c, jv-exp.y, infcmd.c, f-valprint.c: Ditto. * findvar.c, f-exp.y, expprint.c, coffread.c, c-exp.y: Ditto. * buildsym.c, breakpoint.c, blockframe.c, ax-gdb.c: Ditto. * alpha-tdep.c, ada-lang.c, ada-exp.y: Ditto. * blockframe.c (blockvector_for_pc_sect): Move to "block.c". (blockvector_for_pc, block_for_pc_sect, block_for_pc): Ditto. * symtab.c (block_function): Ditto. (contained_in): Ditto. * frame.h: Move block_for_pc and block_for_pc_sect declarations to block.h. Add opaque declaration for struct block. * symtab.h: Move block_function and contained_in declarations to block.h. Add opaque declarations for struct block, struct blockvector. (struct block): Move to block.h. (struct blockvector): Ditto. (BLOCK_START, BLOCK_END, BLOCK_FUNCTION, BLOCK_SUPERBLOCK) (BLOCK_GCC_COMPILED, BLOCK_HASHTABLE, BLOCK_NSYMS, BLOCK_SYM) (BLOCK_BUCKETS, BLOCK_BUCKET, BLOCK_HASHTABLE_SIZE) (ALL_BLOCK_SYMBOLS, BLOCK_SHOULD_SORT, BLOCKVECTOR_NBLOCKS) (BLOCKVECTOR_BLOCK, GLOBAL_BLOCK, STATIC_BLOCK, FIRST_LOCAL_BLOCK): Ditto. * block.c: New file. * block.h: New file. 2003-02-19 David Carlton <carlton@math.stanford.edu> * mi-cmd-stack.c: #include "block.h"
338 lines
11 KiB
C
338 lines
11 KiB
C
/* Definitions for reading symbol files into GDB.
|
|
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 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
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#if !defined (SYMFILE_H)
|
|
#define SYMFILE_H
|
|
|
|
/* This file requires that you first include "bfd.h". */
|
|
|
|
/* Opaque declarations. */
|
|
|
|
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,
|
|
one for global symbols and one for static symbols. Although this adds
|
|
a level of indirection for storing or accessing the partial symbols,
|
|
it allows us to throw away duplicate psymbols and set all pointers
|
|
to the single saved instance. */
|
|
|
|
struct psymbol_allocation_list
|
|
{
|
|
|
|
/* Pointer to beginning of dynamically allocated array of pointers to
|
|
partial symbols. The array is dynamically expanded as necessary to
|
|
accommodate more pointers. */
|
|
|
|
struct partial_symbol **list;
|
|
|
|
/* Pointer to next available slot in which to store a pointer to a partial
|
|
symbol. */
|
|
|
|
struct partial_symbol **next;
|
|
|
|
/* Number of allocated pointer slots in current dynamic array (not the
|
|
number of bytes of storage). The "next" pointer will always point
|
|
somewhere between list[0] and list[size], and when at list[size] the
|
|
array will be expanded on the next attempt to store a pointer. */
|
|
|
|
int size;
|
|
};
|
|
|
|
/* Define an array of addresses to accommodate non-contiguous dynamic
|
|
loading of modules. This is for use when entering commands, so we
|
|
can keep track of the section names until we read the file and
|
|
can map them to bfd sections. This structure is also used by
|
|
solib.c to communicate the section addresses in shared objects to
|
|
symbol_file_add (). */
|
|
|
|
#define MAX_SECTIONS 64
|
|
struct section_addr_info
|
|
{
|
|
/* Sections whose names are file format dependent. */
|
|
struct other_sections
|
|
{
|
|
CORE_ADDR addr;
|
|
char *name;
|
|
int sectindex;
|
|
} other[MAX_SECTIONS];
|
|
};
|
|
|
|
/* Structure to keep track of symbol reading functions for various
|
|
object file types. */
|
|
|
|
struct sym_fns
|
|
{
|
|
|
|
/* BFD flavour that we handle, or (as a special kludge, see xcoffread.c,
|
|
(enum bfd_flavour)-1 for xcoff). */
|
|
|
|
enum bfd_flavour sym_flavour;
|
|
|
|
/* Initializes anything that is global to the entire symbol table. It is
|
|
called during symbol_file_add, when we begin debugging an entirely new
|
|
program. */
|
|
|
|
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) (struct objfile *);
|
|
|
|
/* sym_read (objfile, mainline)
|
|
Reads a symbol file into a psymtab (or possibly a symtab).
|
|
OBJFILE is the objfile struct for the file we are reading.
|
|
MAINLINE is 1 if this is the
|
|
main symbol table being read, and 0 if a secondary
|
|
symbol file (e.g. shared library or dynamically loaded file)
|
|
is being read. */
|
|
|
|
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) (struct objfile *);
|
|
|
|
/* This function produces a file-dependent section_offsets structure,
|
|
allocated in the objfile's storage, and based on the parameter.
|
|
The parameter is currently a CORE_ADDR (FIXME!) for backward compatibility
|
|
with the higher levels of GDB. It should probably be changed to
|
|
a string, where NULL means the default, and others are parsed in a file
|
|
dependent way. */
|
|
|
|
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
|
|
initializer calls add_symtab_fns to add them to the global chain. */
|
|
|
|
struct sym_fns *next;
|
|
|
|
};
|
|
|
|
/* The default version of sym_fns.sym_offsets for readers that don't
|
|
do anything special. */
|
|
|
|
extern void default_symfile_offsets (struct objfile *objfile,
|
|
struct section_addr_info *);
|
|
|
|
|
|
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 (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 (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 (struct objfile *, int);
|
|
|
|
extern void sort_pst_symbols (struct partial_symtab *);
|
|
|
|
extern struct symtab *allocate_symtab (char *, 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 init_entry_point_info (struct objfile *);
|
|
|
|
extern void syms_from_objfile (struct objfile *,
|
|
struct section_addr_info *,
|
|
struct section_offsets *, int,
|
|
int, int);
|
|
|
|
extern void new_symfile_objfile (struct objfile *, 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. */
|
|
|
|
struct section_table;
|
|
extern struct section_addr_info *
|
|
build_section_addr_info_from_section_table (const struct section_table *start,
|
|
const struct section_table *end);
|
|
|
|
/* Free all memory allocated by build_section_addr_info_from_section_table. */
|
|
|
|
extern void free_section_addr_info (struct section_addr_info *);
|
|
|
|
|
|
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 (struct block *);
|
|
|
|
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 (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 (struct obstack *obstackp, const char *, const char *,
|
|
const char *);
|
|
|
|
/* Variables */
|
|
|
|
/* 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. */
|
|
|
|
extern int auto_solib_add;
|
|
|
|
/* 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_limit;
|
|
|
|
/* From symfile.c */
|
|
|
|
extern CORE_ADDR entry_point_address (void);
|
|
|
|
extern struct partial_symtab *allocate_psymtab (char *, struct objfile *);
|
|
|
|
extern void discard_psymtab (struct partial_symtab *);
|
|
|
|
extern void find_lowest_section (bfd *, asection *, void *);
|
|
|
|
extern bfd *symfile_bfd_open (char *);
|
|
|
|
extern int get_section_index (struct objfile *, char *);
|
|
|
|
/* Utility functions for overlay sections: */
|
|
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 (CORE_ADDR);
|
|
|
|
/* return any overlay section containing the PC (even in its LMA region) */
|
|
extern asection *find_pc_overlay (CORE_ADDR);
|
|
|
|
/* return true if the section is an overlay */
|
|
extern int section_is_overlay (asection *);
|
|
|
|
/* return true if the overlay section is currently "mapped" */
|
|
extern int section_is_mapped (asection *);
|
|
|
|
/* return true if pc belongs to section's VMA */
|
|
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 (CORE_ADDR, asection *);
|
|
|
|
/* map an address from a section's LMA to its VMA */
|
|
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 (CORE_ADDR, asection *);
|
|
|
|
/* convert an address in an overlay section (force into VMA range) */
|
|
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 (struct objfile *, int, file_ptr, unsigned int,
|
|
file_ptr, unsigned int);
|
|
|
|
/* From dwarf2read.c */
|
|
|
|
extern int dwarf2_has_info (bfd * abfd);
|
|
|
|
extern void dwarf2_build_psymtabs (struct objfile *, int);
|
|
extern void dwarf2_build_frame_info (struct objfile *);
|
|
|
|
/* From mdebugread.c */
|
|
|
|
/* Hack to force structures to exist before use in parameter list. */
|
|
struct ecoff_debug_hack
|
|
{
|
|
struct ecoff_debug_swap *a;
|
|
struct ecoff_debug_info *b;
|
|
};
|
|
extern void
|
|
mdebug_build_psymtabs (struct objfile *,
|
|
const struct ecoff_debug_swap *,
|
|
struct ecoff_debug_info *);
|
|
|
|
extern void
|
|
elfmdebug_build_psymtabs (struct objfile *,
|
|
const struct ecoff_debug_swap *, asection *);
|
|
|
|
#endif /* !defined(SYMFILE_H) */
|