/* Block-related functions for the GNU debugger, GDB.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2007, 2008 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/>. */
#include "defs.h"
#include "block.h"
#include "symfile.h"
#include "gdb_obstack.h"
#include "cp-support.h"
+#include "addrmap.h"
/* This is used by struct block to store namespace-related info for
C++ files, namely using declarations and the current namespace in
return BLOCK_FUNCTION (bl);
}
-/* Return the blockvector immediately containing the innermost lexical block
- containing the specified pc value and section, or 0 if there is none.
- PINDEX is a pointer to the index value of the block. If PINDEX
- is NULL, we don't pass this information back to the caller. */
+/* Return the blockvector immediately containing the innermost lexical
+ block containing the specified pc value and section, or 0 if there
+ is none. PBLOCK is a pointer to the block. If PBLOCK is NULL, we
+ don't pass this information back to the caller. */
struct blockvector *
blockvector_for_pc_sect (CORE_ADDR pc, struct bfd_section *section,
- int *pindex, struct symtab *symtab)
+ struct block **pblock, struct symtab *symtab)
{
struct block *b;
int bot, top, half;
}
bl = BLOCKVECTOR (symtab);
- b = BLOCKVECTOR_BLOCK (bl, 0);
/* Then search that symtab for the smallest block that wins. */
- /* Use binary search to find the last block that starts before PC. */
+ /* If we have an addrmap mapping code addresses to blocks, then use
+ that. */
+ if (BLOCKVECTOR_MAP (bl))
+ {
+ b = addrmap_find (BLOCKVECTOR_MAP (bl), pc);
+ if (b)
+ {
+ if (pblock)
+ *pblock = b;
+ return bl;
+ }
+ else
+ return 0;
+ }
+
+
+ /* Otherwise, use binary search to find the last block that starts
+ before PC. */
bot = 0;
top = BLOCKVECTOR_NBLOCKS (bl);
b = BLOCKVECTOR_BLOCK (bl, bot);
if (BLOCK_END (b) > pc)
{
- if (pindex)
- *pindex = bot;
+ if (pblock)
+ *pblock = b;
return bl;
}
bot--;
Backward compatibility, no section. */
struct blockvector *
-blockvector_for_pc (CORE_ADDR pc, int *pindex)
+blockvector_for_pc (CORE_ADDR pc, struct block **pblock)
{
return blockvector_for_pc_sect (pc, find_pc_mapped_section (pc),
- pindex, NULL);
+ pblock, NULL);
}
/* Return the innermost lexical block containing the specified pc value
block_for_pc_sect (CORE_ADDR pc, struct bfd_section *section)
{
struct blockvector *bl;
- int index;
+ struct block *b;
- bl = blockvector_for_pc_sect (pc, section, &index, NULL);
+ bl = blockvector_for_pc_sect (pc, section, &b, NULL);
if (bl)
- return BLOCKVECTOR_BLOCK (bl, index);
+ return b;
return 0;
}
BLOCK_SUPERBLOCK (bl) = NULL;
BLOCK_DICT (bl) = NULL;
BLOCK_NAMESPACE (bl) = NULL;
- BLOCK_GCC_COMPILED (bl) = 0;
return bl;
}