GDB 6.1 (excluding .info files)

1 files changed, 174 insertions, 0 deletions

diff --git a/gnu/usr.bin/binutils/gdb/block.h b/gnu/usr.bin/binutils/gdb/block.h
new file mode 100644
index 00000000000..a36821305ca
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/block.h
@@ -0,0 +1,174 @@
+/* Code dealing with blocks for GDB.
+
+   Copyright 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.  */
+
+#ifndef BLOCK_H
+#define BLOCK_H
+
+/* Opaque declarations.  */
+
+struct symbol;
+struct symtab;
+struct block_namespace_info;
+struct using_direct;
+struct obstack;
+struct dictionary;
+
+/* All of the name-scope contours of the program
+   are represented by `struct block' objects.
+   All of these objects are pointed to by the blockvector.
+
+   Each block represents one name scope.
+   Each lexical context has its own block.
+
+   The blockvector begins with some special blocks.
+   The GLOBAL_BLOCK contains all the symbols defined in this compilation
+   whose scope is the entire program linked together.
+   The STATIC_BLOCK contains all the symbols whose scope is the
+   entire compilation excluding other separate compilations.
+   Blocks starting with the FIRST_LOCAL_BLOCK are not special.
+
+   Each block records a range of core addresses for the code that
+   is in the scope of the block.  The STATIC_BLOCK and GLOBAL_BLOCK
+   give, for the range of code, the entire range of code produced
+   by the compilation that the symbol segment belongs to.
+
+   The blocks appear in the blockvector
+   in order of increasing starting-address,
+   and, within that, in order of decreasing ending-address.
+
+   This implies that within the body of one function
+   the blocks appear in the order of a depth-first tree walk.  */
+
+struct block
+{
+
+  /* Addresses in the executable code that are in this block.  */
+
+  CORE_ADDR startaddr;
+  CORE_ADDR endaddr;
+
+  /* The symbol that names this block, if the block is the body of a
+     function; otherwise, zero.  */
+
+  struct symbol *function;
+
+  /* The `struct block' for the containing block, or 0 if none.
+
+     The superblock of a top-level local block (i.e. a function in the
+     case of C) is the STATIC_BLOCK.  The superblock of the
+     STATIC_BLOCK is the GLOBAL_BLOCK.  */
+
+  struct block *superblock;
+
+  /* This is used to store the symbols in the block.  */
+
+  struct dictionary *dict;
+
+  /* Used for language-specific info.  */
+
+  union
+  {
+    struct
+    {
+      /* Contains information about namespace-related info relevant to
+	 this block: using directives and the current namespace
+	 scope.  */
+      
+      struct block_namespace_info *namespace;
+    }
+    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;
+};
+
+#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
+
+/* 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.  */
+
+#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;
+  /* The blocks themselves.  */
+  struct block *block[1];
+};
+
+#define BLOCKVECTOR_NBLOCKS(blocklist) (blocklist)->nblocks
+#define BLOCKVECTOR_BLOCK(blocklist,n) (blocklist)->block[n]
+
+/* Special block numbers */
+
+enum { GLOBAL_BLOCK = 0, STATIC_BLOCK = 1, FIRST_LOCAL_BLOCK = 2 };
+
+extern struct symbol *block_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_sect (CORE_ADDR, asection *,
+						    int *, struct symtab *);
+
+extern struct block *block_for_pc (CORE_ADDR);
+
+extern struct block *block_for_pc_sect (CORE_ADDR, asection *);
+
+extern const char *block_scope (const struct block *block);
+
+extern void block_set_scope (struct block *block, const char *scope,
+			     struct obstack *obstack);
+
+extern struct using_direct *block_using (const struct block *block);
+
+extern void block_set_using (struct block *block,
+			     struct using_direct *using,
+			     struct obstack *obstack);
+
+extern const struct block *block_static_block (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 */