2012-05-03 Siva Chandra Reddy <sivachandra@google.com>

	Add two new methods global_block and static_block to gdb.Symtab
	objects.
	* NEWS (Python scripting): Add entry about the new methods.
	* python/py-symtab.c (stpy_global_block): New function which
	implements the gdb.Symtab.global_block() method.
	(stpy_static_block): New function which implements the
	gdb.Symtab.static_block() method.
	(symtab_object_methods): Add entries for the two new methods.

	* testsuite/gdb.python/py-symbol.exp: Add tests to test the new
	methods gdb.Symtab.global_block() and gdb.Symtab.static_block().
	* tessuite/gdb.python/py-symbol.c: Add new struct to help test
	gdb.Symtab.static_block().

	* doc/gdb.texinfo (Symbol Tables In Python): Add documentation
	about the new methods global_block and static_block on
	gdb.Symtab objects.

1 files changed, 39 insertions, 0 deletions

diff --git a/gdb/python/py-symtab.c b/gdb/python/py-symtab.c
index 09b760fc4df..e9e38b2f3c7 100644
--- a/gdb/python/py-symtab.c
+++ b/gdb/python/py-symtab.c
@@ -23,6 +23,7 @@
 #include "source.h"
 #include "python-internal.h"
 #include "objfiles.h"
+#include "block.h"
 
 typedef struct stpy_symtab_object {
   PyObject_HEAD
@@ -153,6 +154,38 @@ stpy_is_valid (PyObject *self, PyObject *args)
   Py_RETURN_TRUE;
 }
 
+/* Return the GLOBAL_BLOCK of the underlying symtab.  */
+
+static PyObject *
+stpy_global_block (PyObject *self, PyObject *args)
+{
+  struct symtab *symtab = NULL;
+  struct block *block = NULL;
+  struct blockvector *blockvector;
+
+  STPY_REQUIRE_VALID (self, symtab);
+
+  blockvector = BLOCKVECTOR (symtab);
+  block = BLOCKVECTOR_BLOCK (blockvector, GLOBAL_BLOCK);
+  return block_to_block_object (block, symtab->objfile);
+}
+
+/* Return the STATIC_BLOCK of the underlying symtab.  */
+
+static PyObject *
+stpy_static_block (PyObject *self, PyObject *args)
+{
+  struct symtab *symtab = NULL;
+  struct block *block = NULL;
+  struct blockvector *blockvector;
+
+  STPY_REQUIRE_VALID (self, symtab);
+
+  blockvector = BLOCKVECTOR (symtab);
+  block = BLOCKVECTOR_BLOCK (blockvector, STATIC_BLOCK);
+  return block_to_block_object (block, symtab->objfile);
+}
+
 static PyObject *
 salpy_str (PyObject *self)
 {
@@ -477,6 +510,12 @@ Return true if this symbol table is valid, false if not." },
   { "fullname", stpy_fullname, METH_NOARGS,
     "fullname () -> String.\n\
 Return the symtab's full source filename." },
+  { "global_block", stpy_global_block, METH_NOARGS,
+    "global_block () -> gdb.Block.\n\
+Return the global block of the symbol table." },
+  { "static_block", stpy_static_block, METH_NOARGS,
+    "static_block () -> gdb.Block.\n\
+Return the static block of the symbol table." },
   {NULL}  /* Sentinel */
 };