PowerPC readonly_dynrelocs

[deliverable/binutils-gdb.git] / gdb / gdb_obstack.h

diff --git a/gdb/gdb_obstack.h b/gdb/gdb_obstack.h
index 96196b705e4d75cb2f726efb565017fd259e2338..b241c8274f1cdd5d5e331ca9655f23befc7a4330 100644 (file)
--- a/gdb/gdb_obstack.h
+++ b/gdb/gdb_obstack.h
@@ -1,6 +1,6 @@
 /* Obstack wrapper for GDB.
 
-   Copyright (C) 2002-2013 Free Software Foundation, Inc.
+   Copyright (C) 2002-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -25,11 +25,11 @@
 /* Utility macros - wrap obstack alloc into something more robust.  */
 
 #define OBSTACK_ZALLOC(OBSTACK,TYPE) \
-  (memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
+  ((TYPE *) memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
 
 #define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) \
-  (memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
-          0, (NUMBER) * sizeof (TYPE)))
+  ((TYPE *) memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
+                   0, (NUMBER) * sizeof (TYPE)))
 
 /* Unless explicitly specified, GDB obstacks always use xmalloc() and
    xfree().  */
@@ -51,4 +51,31 @@
 #define obstack_grow_wstr(OBSTACK, WSTRING) \
   obstack_grow (OBSTACK, WSTRING, sizeof (gdb_wchar_t) * gdb_wcslen (WSTRING))
 
+/* Concatenate NULL terminated variable argument list of `const char
+   *' strings; return the new string.  Space is found in the OBSTACKP.
+   Argument list must be terminated by a sentinel expression `(char *)
+   NULL'.  */
+
+extern char *obconcat (struct obstack *obstackp, ...) ATTRIBUTE_SENTINEL;
+
+/* Duplicate STRING, returning an equivalent string that's allocated on the
+   obstack OBSTACKP.  */
+
+extern char *obstack_strdup (struct obstack *obstackp, const char *string);
+
+/* An obstack that frees itself on scope exit.  */
+struct auto_obstack : obstack
+{
+  auto_obstack ()
+  { obstack_init (this); }
+
+  ~auto_obstack ()
+  { obstack_free (this, NULL); }
+
+  /* Free all memory in the obstack but leave it valid for further
+     allocation.  */
+  void clear ()
+  { obstack_free (this, obstack_base (this)); }
+};
+
 #endif