xnu-1699.22.73.tar.gz

[apple/xnu.git] / libsyscall / wrappers / _libc_funcptr.c

diff --git a/libsyscall/wrappers/_libc_funcptr.c b/libsyscall/wrappers/_libc_funcptr.c
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+++ b/libsyscall/wrappers/_libc_funcptr.c
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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@
+ */
+
+#include <mach/mach.h>
+#include <mach/mach_init.h>
+
+extern void (*_libc_set_errno)(int);
+
+static mach_port_t (*_libc_get_reply_port)(void);
+static void (*_libc_set_reply_port)(mach_port_t);
+
+/* 
+ * Called at Libsystem initialise time, sets up callbacks we
+ * need to get at thread variables inside of Libc
+ */
+void
+_mig_reply_port_callbacks(mach_port_t (*get)(void), void (*set)(mach_port_t))
+{
+       _libc_get_reply_port = get;
+       _libc_set_reply_port = set;
+}
+
+mach_port_t _mig_get_reply_port(void) __attribute__((visibility("hidden")));
+mach_port_t
+_mig_get_reply_port()
+{
+       return _libc_get_reply_port();
+}
+
+void _mig_set_reply_port(mach_port_t port) __attribute__((visibility("hidden")));
+void
+_mig_set_reply_port(mach_port_t port)
+{
+       _libc_set_reply_port(port);
+}
+
+void cthread_set_errno_self(int errno) __attribute__((visibility("hidden")));
+void
+cthread_set_errno_self(int errno)
+{
+       _libc_set_errno(errno);
+}
+
+
+void _pthread_set_self(void* ptr) __attribute__((visibility("hidden")));
+void
+_pthread_set_self(void* ptr) {}