dyld-210.2.3.tar.gz

[apple/dyld.git] / unit-tests / test-cases / symbol-resolver-interposed / foo.c

diff --git a/unit-tests/test-cases/symbol-resolver-interposed/foo.c b/unit-tests/test-cases/symbol-resolver-interposed/foo.c
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+++ b/unit-tests/test-cases/symbol-resolver-interposed/foo.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <stdlib.h>
+
+static int which_foo = 0;
+
+void set_foo(int x)
+{
+       which_foo = x;
+}
+
+static int foo_ten()
+{
+       return 10;
+}
+
+static int foo_zero()
+{
+       return 0;
+}
+
+
+// This foo is a "resolver" function that return the actual address of "foo"
+void* foo()
+{
+       __asm__(".symbol_resolver _foo");  // magic until we have compiler support
+       if ( which_foo == 0 )
+               return &foo_zero;
+       else
+               return &foo_ten;
+}
+