/* Code dealing with blocks for GDB.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef BLOCK_H
#define BLOCK_H
struct block_namespace_info;
struct using_direct;
struct obstack;
+struct dictionary;
+struct addrmap;
/* All of the name-scope contours of the program
are represented by `struct block' objects.
struct block *superblock;
+ /* This is used to store the symbols in the block. */
+
+ struct dictionary *dict;
+
/* Used for language-specific info. */
union
cplus_specific;
}
language_specific;
-
- /* Version of GCC used to compile the function corresponding
- to this block, or 0 if not compiled with GCC. When possible,
- GCC should be compatible with the native compiler, or if that
- is not feasible, the differences should be fixed during symbol
- reading. As of 16 Apr 93, this flag is never used to distinguish
- between gcc2 and the native compiler.
-
- If there is no function corresponding to this block, this meaning
- of this flag is undefined. */
-
- unsigned char gcc_compile_flag;
-
- /* The symbols for this block are either in a simple linear list or
- in a simple hashtable. Blocks which correspond to a function
- (which have a list of symbols corresponding to arguments) use
- a linear list, as do some older symbol readers (currently only
- mdebugread and dstread). Other blocks are hashed.
-
- The hashtable uses the same hash function as the minsym hashtables,
- found in minsyms.c:minsym_hash_iw. Symbols are hashed based on
- their demangled name if appropriate, and on their name otherwise.
- The hash function ignores space, and stops at the beginning of the
- argument list if any.
-
- The table is laid out in NSYMS/5 buckets and symbols are chained via
- their hash_next field. */
-
- /* If this is really a hashtable of the symbols, this flag is 1. */
-
- unsigned char hashtable;
-
- /* Number of local symbols. */
-
- int nsyms;
-
- /* The symbols. If some of them are arguments, then they must be
- in the order in which we would like to print them. */
-
- struct symbol *sym[1];
};
#define BLOCK_START(bl) (bl)->startaddr
#define BLOCK_END(bl) (bl)->endaddr
#define BLOCK_FUNCTION(bl) (bl)->function
#define BLOCK_SUPERBLOCK(bl) (bl)->superblock
-#define BLOCK_GCC_COMPILED(bl) (bl)->gcc_compile_flag
+#define BLOCK_DICT(bl) (bl)->dict
#define BLOCK_NAMESPACE(bl) (bl)->language_specific.cplus_specific.namespace
-#define BLOCK_HASHTABLE(bl) (bl)->hashtable
-/* For blocks without a hashtable (BLOCK_HASHTABLE (bl) == 0) only. */
-#define BLOCK_NSYMS(bl) (bl)->nsyms
-#define BLOCK_SYM(bl, n) (bl)->sym[n]
+/* Macro to loop through all symbols in a block BL, in no particular
+ order. ITER helps keep track of the iteration, and should be a
+ struct dict_iterator. SYM points to the current symbol. */
-/* For blocks with a hashtable, but these are valid for non-hashed blocks as
- well - each symbol will appear to be one bucket by itself. */
-#define BLOCK_BUCKETS(bl) (bl)->nsyms
-#define BLOCK_BUCKET(bl, n) (bl)->sym[n]
-
-/* Macro used to set the size of a hashtable for N symbols. */
-#define BLOCK_HASHTABLE_SIZE(n) ((n)/5 + 1)
-
-/* Macro to loop through all symbols in a block BL, in no particular order.
- i counts which bucket we are in, and sym points to the current symbol. */
-
-#define ALL_BLOCK_SYMBOLS(bl, i, sym) \
- for ((i) = 0; (i) < BLOCK_BUCKETS ((bl)); (i)++) \
- for ((sym) = BLOCK_BUCKET ((bl), (i)); (sym); \
- (sym) = (sym)->hash_next)
+#define ALL_BLOCK_SYMBOLS(block, iter, sym) \
+ ALL_DICT_SYMBOLS (BLOCK_DICT (block), iter, sym)
struct blockvector
{
/* Number of blocks in the list. */
int nblocks;
+ /* An address map mapping addresses to blocks in this blockvector.
+ This pointer is zero if the blocks' start and end addresses are
+ enough. */
+ struct addrmap *map;
/* The blocks themselves. */
struct block *block[1];
};
#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
+#define BLOCKVECTOR_MAP(blocklist) ((blocklist)->map)
/* Special block numbers */
-#define GLOBAL_BLOCK 0
-#define STATIC_BLOCK 1
-#define FIRST_LOCAL_BLOCK 2
+enum { GLOBAL_BLOCK = 0, STATIC_BLOCK = 1, FIRST_LOCAL_BLOCK = 2 };
-extern struct symbol *block_function (const struct block *);
+extern struct symbol *block_linkage_function (const struct block *);
extern int contained_in (const struct block *, const struct block *);
-extern struct blockvector *blockvector_for_pc (CORE_ADDR, int *);
+extern struct blockvector *blockvector_for_pc (CORE_ADDR, struct block **);
-extern struct blockvector *blockvector_for_pc_sect (CORE_ADDR, asection *,
- int *, struct symtab *);
+extern struct blockvector *blockvector_for_pc_sect (CORE_ADDR,
+ struct obj_section *,
+ struct block **,
+ struct symtab *);
extern struct block *block_for_pc (CORE_ADDR);
-extern struct block *block_for_pc_sect (CORE_ADDR, asection *);
+extern struct block *block_for_pc_sect (CORE_ADDR, struct obj_section *);
extern const char *block_scope (const struct block *block);
extern const struct block *block_global_block (const struct block *block);
+extern struct block *allocate_block (struct obstack *obstack);
+
#endif /* BLOCK_H */
projects / deliverable / binutils-gdb.git / blobdiff