From b1028c8e8f281d1072e1fd89d8083cb960598a1a Mon Sep 17 00:00:00 2001
From: Pedro Alves <palves@redhat.com>
Date: Thu, 11 Feb 2010 18:24:57 +0000
Subject: [PATCH] * ax-gdb.c (gen_deref): Don't allow dereferencing void
pointers.
---
gdb/ChangeLog | 4 ++++
gdb/ax-gdb.c | 2 ++
2 files changed, 6 insertions(+)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index acd65e83c84..ddf66153dbf 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2010-02-11 Pedro Alves <pedro@codesourcery.com>
+
+ * ax-gdb.c (gen_deref): Don't allow dereferencing void pointers.
+
2010-02-11 Vladimir Prus <vladimir@codesourcery.com>
* mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Add extra
diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index 5776bb0ce6d..eb532384ca6 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -1082,6 +1082,8 @@ gen_deref (struct agent_expr *ax, struct axs_value *value)
T" to "T", and mark the value as an lvalue in memory. Leave it
to the consumer to actually dereference it. */
value->type = check_typedef (TYPE_TARGET_TYPE (value->type));
+ if (TYPE_CODE (value->type) == TYPE_CODE_VOID)
+ error (_("Attempt to dereference a generic pointer."));
value->kind = ((TYPE_CODE (value->type) == TYPE_CODE_FUNC)
? axs_rvalue : axs_lvalue_memory);
}
--
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