xnu-1699.22.73.tar.gz

[apple/xnu.git] / libsyscall / wrappers / _libkernel_init.h

diff --git a/libsyscall/wrappers/_libkernel_init.h b/libsyscall/wrappers/_libkernel_init.h
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+/*
+ * Copyright (c) 2010 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#ifndef __LIBKERNEL_INIT_H
+#define __LIBKERNEL_INIT_H
+
+#include <mach/mach.h>
+
+typedef struct _libkernel_functions {
+       /* for mach dependencies on libc */
+       mach_port_t (*get_reply_port)(void);
+       void (*set_reply_port)(mach_port_t);
+       
+       /* dlsym() for looking up catch_exception_raise */
+       void* (*dlsym)(void*, const char*);
+
+       /* placeholders for struct layout compatibility with Libsystem */
+       void *_placeholder_1;
+       void *_placeholder_2;
+       
+       /* for setting errno in libc */
+       void (*set_errno)(int);
+       int* (*get_errno)(void);
+
+} _libkernel_functions_t;
+
+void _libkernel_init(_libkernel_functions_t fns);
+
+#endif // __LIBKERNEL_INIT_H`