Libc-1044.1.2.tar.gz

[apple/libc.git] / sys / _libc_init.c

diff --git a/sys/_libc_init.c b/sys/_libc_init.c
new file mode 100644 (file)
index 0000000..faf185a
--- /dev/null
+++ b/sys/_libc_init.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2005-2007 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@
+ */
+/*
+ * _libc_initializer() is called from libSystem_initializer()
+ */
+
+#include <limits.h>
+#include <stdint.h>
+#include <string.h>
+#include <machine/cpu_capabilities.h>
+#include <TargetConditionals.h>
+
+#include "libc_private.h"
+
+extern void _program_vars_init(const struct ProgramVars *vars);
+extern void _libc_fork_init(const struct _libc_functions *funcs);
+extern void __atexit_init(void);
+extern void __confstr_init(const struct _libc_functions *funcs);
+extern void _init_clock_port(void);
+extern void __chk_init(void);
+extern void __xlocale_init(void);
+extern void __guard_setup(const char *apple[]);
+
+void
+_libc_initializer(const struct _libc_functions *funcs,
+       const char *envp[],
+       const char *apple[],
+       const struct ProgramVars *vars)
+{
+       _program_vars_init(vars);
+       _libc_fork_init(funcs);
+       __confstr_init(funcs);
+       __atexit_init();
+       _init_clock_port();
+       __chk_init();
+       __xlocale_init();
+       __guard_setup(apple);
+}
+
+
+void
+__libc_init(const struct ProgramVars *vars,
+       void (*atfork_prepare)(void),
+       void (*atfork_parent)(void),
+       void (*atfork_child)(void),
+       const char *apple[])
+{
+       const struct _libc_functions funcs = {
+               .version = 1,
+               .atfork_prepare = atfork_prepare,
+               .atfork_parent = atfork_parent,
+               .atfork_child = atfork_child,
+               .dirhelper = NULL,
+       };
+       
+       return _libc_initializer(&funcs, NULL, apple, vars);
+}