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authorgdb-3.1 <gdb@fsf.org>1989-01-31 17:56:40 +0000
committerPedro Alves <palves@redhat.com>2012-06-03 15:36:31 +0100
commite91b87a36830d061ef87d67be5f309e4d4ed918f (patch)
tree3408ea913a9cccd51c9b7d0b3bc7d7897cac8a5b /gdb/obstack.c
parentbb7592f01006b09c846831a9fb9c306307ba34f6 (diff)
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gdb-3.1
Diffstat (limited to 'gdb/obstack.c')
-rw-r--r--gdb/obstack.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gdb/obstack.c b/gdb/obstack.c
index 3b5bdef..4379911 100644
--- a/gdb/obstack.c
+++ b/gdb/obstack.c
@@ -212,6 +212,27 @@ _obstack_newchunk (h, length)
h->next_free = h->object_base + obj_size;
}
+/* Return nonzero if object OBJ has been allocated from obstack H.
+ This is here for debugging.
+ If you use it in a program, you are probably losing. */
+
+int
+_obstack_allocated_p (h, obj)
+ struct obstack *h;
+ POINTER obj;
+{
+ register struct _obstack_chunk* lp; /* below addr of any objects in this chunk */
+ register struct _obstack_chunk* plp; /* point to previous chunk if any */
+
+ lp = (h)->chunk;
+ while (lp != 0 && ((POINTER)lp > obj || (POINTER)(lp)->limit < obj))
+ {
+ plp = lp -> prev;
+ lp = plp;
+ }
+ return lp != 0;
+}
+
/* Free objects in obstack H, including OBJ and everything allocate
more recently than OBJ. If OBJ is zero, free everything in H. */