xnu-3789.51.2.tar.gz

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

diff --git a/libsyscall/wrappers/_libkernel_init.h b/libsyscall/wrappers/_libkernel_init.h
index 609975abdbd1356dc95d8877606b413e00896c66..68a7067e4f8c5ab41349a2cfb762c76f08b1ff5a 100644 (file)
--- a/libsyscall/wrappers/_libkernel_init.h
+++ b/libsyscall/wrappers/_libkernel_init.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2010-2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -29,26 +29,60 @@
 #ifndef __LIBKERNEL_INIT_H
 #define __LIBKERNEL_INIT_H
 
+#include <sys/types.h>
 #include <mach/mach.h>
+#include <mach/message.h>
+#include <mach/mach_types.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 */
+#ifndef __OS_VOUCHER_PRIVATE__
+// We cannot include the actual os/voucher_private.h definition of voucher_t
+// here, as that also marks the voucher_XXX functions as exported, which causes
+// a compile error when we attempt to mark them hidden in the .c file.
+//
+// The Libsystem init.c file does include os/voucher_private.h though, as well
+// as this file, and this typedef causes an error if it is unguarded.
+struct voucher_s;
+typedef struct voucher_s *voucher_t;
+#endif
+
+typedef const struct _libkernel_functions {
+       /* The following functions are included in version 1 of this structure */
+       unsigned long version;
        void* (*dlsym)(void*, const char*);
+       void* (*malloc)(size_t);
+       void  (*free)(void*);
+       void* (*realloc)(void*, size_t);
+       void  (*_pthread_exit_if_canceled)(int);
+
+       /* The following functions are included in version 2 of this structure */
+       void *reserved1;
+       void *reserved2;
+       void *reserved3;
+       void *reserved4;
+       void *reserved5;
+
+       /* The following functions are included in version 3 of this structure */
+       void (*pthread_clear_qos_tsd)(mach_port_t);
+
+       /* Subsequent versions must only add pointers! */
+} *_libkernel_functions_t;
+
+typedef const struct _libkernel_voucher_functions {
+       /* The following functions are included in version 1 of this structure */
+       unsigned long version;
+       boolean_t (*voucher_mach_msg_set)(mach_msg_header_t*);
+       void (*voucher_mach_msg_clear)(mach_msg_header_t*);
+       voucher_mach_msg_state_t (*voucher_mach_msg_adopt)(mach_msg_header_t*);
+       void (*voucher_mach_msg_revert)(voucher_mach_msg_state_t);
+
+       /* Subsequent versions must only add pointers! */
+} *_libkernel_voucher_functions_t;
 
-       /* 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);
+struct ProgramVars; /* forward reference */
 
-} _libkernel_functions_t;
+void __libkernel_init(_libkernel_functions_t fns, const char *envp[],
+               const char *apple[], const struct ProgramVars *vars);
 
-void _libkernel_init(_libkernel_functions_t fns);
+kern_return_t __libkernel_voucher_init(_libkernel_voucher_functions_t fns);
 
-#endif // __LIBKERNEL_INIT_H`
+#endif // __LIBKERNEL_INIT_H