/* Block-related functions for the GNU debugger, GDB.
- Copyright (C) 2003, 2007 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
This file is part of GDB.
#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
{
if (!a || !b)
return 0;
- return BLOCK_START (a) >= BLOCK_START (b)
- && BLOCK_END (a) <= BLOCK_END (b);
+
+ do
+ {
+ if (a == b)
+ return 1;
+ /* If A is a function block, then A cannot be contained in B,
+ except if A was inlined. */
+ if (BLOCK_FUNCTION (a) != NULL && !block_inlined_p (a))
+ return 0;
+ a = BLOCK_SUPERBLOCK (a);
+ }
+ while (a != NULL);
+
+ return 0;
}
/* Return the symbol for the function which contains a specified
- lexical block, described by a struct block BL. */
+ lexical block, described by a struct block BL. The return value
+ will not be an inlined function; the containing function will be
+ returned instead. */
struct symbol *
-block_function (const struct block *bl)
+block_linkage_function (const struct block *bl)
{
- while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0)
+ while ((BLOCK_FUNCTION (bl) == NULL || block_inlined_p (bl))
+ && BLOCK_SUPERBLOCK (bl) != NULL)
bl = BLOCK_SUPERBLOCK (bl);
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 one if BL represents an inlined function. */
+
+int
+block_inlined_p (const struct block *bl)
+{
+ return BLOCK_FUNCTION (bl) != NULL && SYMBOL_INLINED (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. 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)
+blockvector_for_pc_sect (CORE_ADDR pc, struct obj_section *section,
+ 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
in the specified section, or 0 if there is none. */
struct block *
-block_for_pc_sect (CORE_ADDR pc, struct bfd_section *section)
+block_for_pc_sect (CORE_ADDR pc, struct obj_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_NAMESPACE (block)->scope = scope;
}
-/* This returns the first using directives associated to BLOCK, if
+/* This returns the using directives list associated with BLOCK, if
any. */
-/* FIXME: carlton/2003-04-23: This uses the fact that we currently
- only have using directives in static blocks, because we only
- generate using directives from anonymous namespaces. Eventually,
- when we support using directives everywhere, we'll want to replace
- this by some iterator functions. */
-
struct using_direct *
block_using (const struct block *block)
{
- const struct block *static_block = block_static_block (block);
-
- if (static_block == NULL
- || BLOCK_NAMESPACE (static_block) == NULL)
+ if (block == NULL || BLOCK_NAMESPACE (block) == NULL)
return NULL;
else
- return BLOCK_NAMESPACE (static_block)->using;
+ return BLOCK_NAMESPACE (block)->using;
}
/* Set BLOCK's using member to USING; if needed, allocate memory via