/* Block-related functions for the GNU debugger, GDB.
- Copyright (C) 2003-2014 Free Software Foundation, Inc.
+ Copyright (C) 2003-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "cp-support.h"
#include "addrmap.h"
#include "gdbtypes.h"
-#include "exceptions.h"
+#include "objfiles.h"
/* This is used by struct block to store namespace-related info for
C++ files, namely using declarations and the current namespace in
static void block_initialize_namespace (struct block *block,
struct obstack *obstack);
+/* See block.h. */
+
+struct objfile *
+block_objfile (const struct block *block)
+{
+ const struct global_block *global_block;
+
+ if (BLOCK_FUNCTION (block) != NULL)
+ return symbol_objfile (BLOCK_FUNCTION (block));
+
+ global_block = (struct global_block *) block_global_block (block);
+ return COMPUNIT_OBJFILE (global_block->compunit_symtab);
+}
+
+/* See block. */
+
+struct gdbarch *
+block_gdbarch (const struct block *block)
+{
+ if (BLOCK_FUNCTION (block) != NULL)
+ return symbol_arch (BLOCK_FUNCTION (block));
+
+ return get_objfile_arch (block_objfile (block));
+}
+
/* Return Nonzero if block a is lexically nested within block b,
or if a and b have the same pc range.
Return zero otherwise. */
It returns the containing block if there is one, or else NULL. */
static struct block *
-find_block_in_blockvector (struct blockvector *bl, CORE_ADDR pc)
+find_block_in_blockvector (const struct blockvector *bl, CORE_ADDR pc)
{
struct block *b;
int bot, top, half;
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 *
+const struct blockvector *
blockvector_for_pc_sect (CORE_ADDR pc, struct obj_section *section,
- const struct block **pblock, struct symtab *symtab)
+ const struct block **pblock,
+ struct compunit_symtab *cust)
{
- struct blockvector *bl;
+ const struct blockvector *bl;
struct block *b;
- if (symtab == 0) /* if no symtab specified by caller */
+ if (cust == NULL)
{
/* First search all symtabs for one whose file contains our pc */
- symtab = find_pc_sect_symtab (pc, section);
- if (symtab == 0)
+ cust = find_pc_sect_compunit_symtab (pc, section);
+ if (cust == NULL)
return 0;
}
- bl = BLOCKVECTOR (symtab);
+ bl = COMPUNIT_BLOCKVECTOR (cust);
/* Then search that symtab for the smallest block that wins. */
b = find_block_in_blockvector (bl, pc);
/* Return true if the blockvector BV contains PC, false otherwise. */
int
-blockvector_contains_pc (struct blockvector *bv, CORE_ADDR pc)
+blockvector_contains_pc (const struct blockvector *bv, CORE_ADDR pc)
{
return find_block_in_blockvector (bv, pc) != NULL;
}
struct call_site *
call_site_for_pc (struct gdbarch *gdbarch, CORE_ADDR pc)
{
- struct symtab *symtab;
+ struct compunit_symtab *cust;
void **slot = NULL;
/* -1 as tail call PC can be already after the compilation unit range. */
- symtab = find_pc_symtab (pc - 1);
+ cust = find_pc_compunit_symtab (pc - 1);
- if (symtab != NULL && symtab->call_site_htab != NULL)
- slot = htab_find_slot (symtab->call_site_htab, &pc, NO_INSERT);
+ if (cust != NULL && COMPUNIT_CALL_SITE_HTAB (cust) != NULL)
+ slot = htab_find_slot (COMPUNIT_CALL_SITE_HTAB (cust), &pc, NO_INSERT);
if (slot == NULL)
{
containing the specified pc value, or 0 if there is none.
Backward compatibility, no section. */
-struct blockvector *
+const struct blockvector *
blockvector_for_pc (CORE_ADDR pc, const struct block **pblock)
{
return blockvector_for_pc_sect (pc, find_pc_mapped_section (pc),
const struct block *
block_for_pc_sect (CORE_ADDR pc, struct obj_section *section)
{
- struct blockvector *bl;
+ const struct blockvector *bl;
const struct block *b;
bl = blockvector_for_pc_sect (pc, section, &b, NULL);
struct block *
allocate_block (struct obstack *obstack)
{
- struct block *bl = obstack_alloc (obstack, sizeof (struct block));
-
- BLOCK_START (bl) = 0;
- BLOCK_END (bl) = 0;
- BLOCK_FUNCTION (bl) = NULL;
- BLOCK_SUPERBLOCK (bl) = NULL;
- BLOCK_DICT (bl) = NULL;
- BLOCK_NAMESPACE (bl) = NULL;
+ struct block *bl = OBSTACK_ZALLOC (obstack, struct block);
return bl;
}
return &bl->block;
}
-/* Set the symtab of the global block. */
+/* Set the compunit of the global block. */
void
-set_block_symtab (struct block *block, struct symtab *symtab)
+set_block_compunit_symtab (struct block *block, struct compunit_symtab *cu)
{
struct global_block *gb;
gdb_assert (BLOCK_SUPERBLOCK (block) == NULL);
gb = (struct global_block *) block;
- gdb_assert (gb->symtab == NULL);
- gb->symtab = symtab;
+ gdb_assert (gb->compunit_symtab == NULL);
+ gb->compunit_symtab = cu;
}
-/* Return the symtab of the global block. */
+/* Return the compunit of the global block. */
-static struct symtab *
-get_block_symtab (const struct block *block)
+static struct compunit_symtab *
+get_block_compunit_symtab (const struct block *block)
{
struct global_block *gb;
gdb_assert (BLOCK_SUPERBLOCK (block) == NULL);
gb = (struct global_block *) block;
- gdb_assert (gb->symtab != NULL);
- return gb->symtab;
+ gdb_assert (gb->compunit_symtab != NULL);
+ return gb->compunit_symtab;
}
\f
struct block_iterator *iter)
{
enum block_enum which;
- struct symtab *symtab;
+ struct compunit_symtab *cu;
iter->idx = -1;
if (BLOCK_SUPERBLOCK (block) == NULL)
{
which = GLOBAL_BLOCK;
- symtab = get_block_symtab (block);
+ cu = get_block_compunit_symtab (block);
}
else if (BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block)) == NULL)
{
which = STATIC_BLOCK;
- symtab = get_block_symtab (BLOCK_SUPERBLOCK (block));
+ cu = get_block_compunit_symtab (BLOCK_SUPERBLOCK (block));
}
else
{
/* If this is an included symtab, find the canonical includer and
use it instead. */
- while (symtab->user != NULL)
- symtab = symtab->user;
+ while (cu->user != NULL)
+ cu = cu->user;
/* Putting this check here simplifies the logic of the iterator
functions. If there are no included symtabs, we only need to
search a single block, so we might as well just do that
directly. */
- if (symtab->includes == NULL)
+ if (cu->includes == NULL)
{
iter->d.block = block;
/* A signal value meaning that we're iterating over a single
}
else
{
- iter->d.symtab = symtab;
+ iter->d.compunit_symtab = cu;
iter->which = which;
}
}
-/* A helper function that finds the current symtab over whose static
+/* A helper function that finds the current compunit over whose static
or global block we should iterate. */
-static struct symtab *
-find_iterator_symtab (struct block_iterator *iterator)
+static struct compunit_symtab *
+find_iterator_compunit_symtab (struct block_iterator *iterator)
{
if (iterator->idx == -1)
- return iterator->d.symtab;
- return iterator->d.symtab->includes[iterator->idx];
+ return iterator->d.compunit_symtab;
+ return iterator->d.compunit_symtab->includes[iterator->idx];
}
/* Perform a single step for a plain block iterator, iterating across
{
if (first)
{
- struct symtab *symtab = find_iterator_symtab (iterator);
+ struct compunit_symtab *cust
+ = find_iterator_compunit_symtab (iterator);
const struct block *block;
/* Iteration is complete. */
- if (symtab == NULL)
+ if (cust == NULL)
return NULL;
- block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), iterator->which);
+ block = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust),
+ iterator->which);
sym = dict_iterator_first (BLOCK_DICT (block), &iterator->dict_iter);
}
else
{
if (first)
{
- struct symtab *symtab = find_iterator_symtab (iterator);
+ struct compunit_symtab *cust
+ = find_iterator_compunit_symtab (iterator);
const struct block *block;
/* Iteration is complete. */
- if (symtab == NULL)
+ if (cust == NULL)
return NULL;
- block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), iterator->which);
+ block = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust),
+ iterator->which);
sym = dict_iter_name_first (BLOCK_DICT (block), name,
&iterator->dict_iter);
}
{
if (first)
{
- struct symtab *symtab = find_iterator_symtab (iterator);
+ struct compunit_symtab *cust
+ = find_iterator_compunit_symtab (iterator);
const struct block *block;
/* Iteration is complete. */
- if (symtab == NULL)
+ if (cust == NULL)
return NULL;
- block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), iterator->which);
+ block = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust),
+ iterator->which);
sym = dict_iter_match_first (BLOCK_DICT (block), name,
compare, &iterator->dict_iter);
}
return block_iter_match_step (iterator, name, compare, 0);
}
+
+/* See block.h.
+
+ Note that if NAME is the demangled form of a C++ symbol, we will fail
+ to find a match during the binary search of the non-encoded names, but
+ for now we don't worry about the slight inefficiency of looking for
+ a match we'll never find, since it will go pretty quick. Once the
+ binary search terminates, we drop through and do a straight linear
+ search on the symbols. Each symbol which is marked as being a ObjC/C++
+ symbol (language_cplus or language_objc set) has both the encoded and
+ non-encoded names tested for a match. */
+
+struct symbol *
+block_lookup_symbol (const struct block *block, const char *name,
+ const domain_enum domain)
+{
+ struct block_iterator iter;
+ struct symbol *sym;
+
+ if (!BLOCK_FUNCTION (block))
+ {
+ ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym)
+ {
+ if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
+ SYMBOL_DOMAIN (sym), domain))
+ return sym;
+ }
+ return NULL;
+ }
+ else
+ {
+ /* Note that parameter symbols do not always show up last in the
+ list; this loop makes sure to take anything else other than
+ parameter symbols first; it only uses parameter symbols as a
+ last resort. Note that this only takes up extra computation
+ time on a match. */
+
+ struct symbol *sym_found = NULL;
+
+ ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym)
+ {
+ if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
+ SYMBOL_DOMAIN (sym), domain))
+ {
+ sym_found = sym;
+ if (!SYMBOL_IS_ARGUMENT (sym))
+ {
+ break;
+ }
+ }
+ }
+ return (sym_found); /* Will be NULL if not found. */
+ }
+}
+
+/* See block.h. */
+
+struct symbol *
+block_lookup_symbol_primary (const struct block *block, const char *name,
+ const domain_enum domain)
+{
+ struct symbol *sym;
+ struct dict_iterator dict_iter;
+
+ /* Verify BLOCK is STATIC_BLOCK or GLOBAL_BLOCK. */
+ gdb_assert (BLOCK_SUPERBLOCK (block) == NULL
+ || BLOCK_SUPERBLOCK (BLOCK_SUPERBLOCK (block)) == NULL);
+
+ for (sym = dict_iter_name_first (block->dict, name, &dict_iter);
+ sym != NULL;
+ sym = dict_iter_name_next (name, &dict_iter))
+ {
+ if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
+ SYMBOL_DOMAIN (sym), domain))
+ return sym;
+ }
+
+ return NULL;
+}
projects / deliverable / binutils-gdb.git / blobdiff