xnu-6153.41.3.tar.gz

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

diff --git a/libsyscall/wrappers/_libc_funcptr.c b/libsyscall/wrappers/_libc_funcptr.c
index 60fd52142d255657be696066bcdd698ae5956ba4..30a31c68ccefb8c769e6b7e2df6ffaa06d94a230 100644 (file)
--- a/libsyscall/wrappers/_libc_funcptr.c
+++ b/libsyscall/wrappers/_libc_funcptr.c
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2010-2014 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.
  * 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,
  * 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,


@@ -22,51 +22,268 @@
  * 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.
  * 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@
  */
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 

-#include <mach/mach.h>
-#include <mach/mach_init.h>
+#include "_libkernel_init.h"
+#include "strings.h"
+
+extern _libkernel_functions_t _libkernel_functions;
+extern void mig_os_release(void* ptr);

 
 

-extern void (*_libc_set_errno)(int);
+__attribute__((visibility("hidden")))
+void *
+malloc(size_t size)
+{
+       return _libkernel_functions->malloc(size);
+}

 
 

-static mach_port_t (*_libc_get_reply_port)(void);
-static void (*_libc_set_reply_port)(mach_port_t);
+__attribute__((visibility("hidden")))
+void
+free(void *ptr)
+{
+       return _libkernel_functions->free(ptr);
+}

 
 

-/* 
- * Called at Libsystem initialise time, sets up callbacks we
- * need to get at thread variables inside of Libc
- */
+__attribute__((visibility("hidden")))
+void *
+realloc(void *ptr, size_t size)
+{
+       return _libkernel_functions->realloc(ptr, size);
+}
+
+__attribute__((visibility("hidden")))
+void *
+reallocf(void *ptr, size_t size)
+{
+       void *nptr = realloc(ptr, size);
+       if (!nptr && ptr) {
+               free(ptr);
+       }
+       return nptr;
+}
+
+__attribute__((visibility("hidden")))

 void
 void

-_mig_reply_port_callbacks(mach_port_t (*get)(void), void (*set)(mach_port_t))
+_pthread_exit_if_canceled(int error)

 {
 {

-       _libc_get_reply_port = get;
-       _libc_set_reply_port = set;
+       return _libkernel_functions->_pthread_exit_if_canceled(error);

 }
 
 }
 

-mach_port_t _mig_get_reply_port(void) __attribute__((visibility("hidden")));
-mach_port_t
-_mig_get_reply_port()
+__attribute__((visibility("hidden")))
+void
+_pthread_set_self(void *ptr __attribute__((__unused__)))

 {
 {

-       return _libc_get_reply_port();

 }
 
 }
 

-void _mig_set_reply_port(mach_port_t port) __attribute__((visibility("hidden")));
+__attribute__((visibility("hidden")))

 void
 void

-_mig_set_reply_port(mach_port_t port)
+_pthread_clear_qos_tsd(mach_port_t thread_port)
+{
+       if (_libkernel_functions->version >= 3 &&
+           _libkernel_functions->pthread_clear_qos_tsd) {
+               return _libkernel_functions->pthread_clear_qos_tsd(thread_port);
+       }
+}
+
+/*
+ * Upcalls to optimized libplatform string functions
+ */
+
+static const struct _libkernel_string_functions
+    _libkernel_generic_string_functions = {
+       .bzero = _libkernel_bzero,
+       .memmove = _libkernel_memmove,
+       .memset = _libkernel_memset,
+       .strchr = _libkernel_strchr,
+       .strcmp = _libkernel_strcmp,
+       .strcpy = _libkernel_strcpy,
+       .strlcpy = _libkernel_strlcpy,
+       .strlen = _libkernel_strlen,
+};
+static _libkernel_string_functions_t _libkernel_string_functions =
+    &_libkernel_generic_string_functions;
+
+kern_return_t
+__libkernel_platform_init(_libkernel_string_functions_t fns)
+{
+       _libkernel_string_functions = fns;
+       return KERN_SUCCESS;
+}
+
+__attribute__((visibility("hidden")))
+void
+bzero(void *s, size_t n)
+{
+       return _libkernel_string_functions->bzero(s, n);
+}
+
+__attribute__((visibility("hidden")))
+void *
+memchr(const void *s, int c, size_t n)
+{
+       return _libkernel_string_functions->memchr(s, c, n);
+}
+
+__attribute__((visibility("hidden")))
+int
+memcmp(const void *s1, const void *s2, size_t n)
+{
+       return _libkernel_string_functions->memcmp(s1, s2, n);
+}
+
+__attribute__((visibility("hidden")))
+void *
+memmove(void *dst, const void *src, size_t n)
+{
+       return _libkernel_string_functions->memmove(dst, src, n);
+}
+
+__attribute__((visibility("hidden")))
+void *
+memcpy(void *dst, const void *src, size_t n)
+{
+       return _libkernel_string_functions->memmove(dst, src, n);
+}
+
+__attribute__((visibility("hidden")))
+void *
+memccpy(void *__restrict dst, const void *__restrict src, int c, size_t n)
+{
+       return _libkernel_string_functions->memccpy(dst, src, c, n);
+}
+
+__attribute__((visibility("hidden")))
+void *
+memset(void *b, int c, size_t len)

 {
 {

-       _libc_set_reply_port(port);
+       return _libkernel_string_functions->memset(b, c, len);
+}
+
+__attribute__((visibility("hidden")))
+char *
+strchr(const char *s, int c)
+{
+       return _libkernel_string_functions->strchr(s, c);
+}
+
+__attribute__((visibility("hidden")))
+char *
+index(const char *s, int c)
+{
+       return _libkernel_string_functions->strchr(s, c);
+}
+
+__attribute__((visibility("hidden")))
+int
+strcmp(const char *s1, const char *s2)
+{
+       return _libkernel_string_functions->strcmp(s1, s2);
+}
+
+__attribute__((visibility("hidden")))
+char *
+strcpy(char * restrict dst, const char * restrict src)
+{
+       return _libkernel_string_functions->strcpy(dst, src);
+}
+
+__attribute__((visibility("hidden")))
+size_t
+strlcat(char * restrict dst, const char * restrict src, size_t maxlen)
+{
+       return _libkernel_string_functions->strlcat(dst, src, maxlen);
+}
+
+__attribute__((visibility("hidden")))
+size_t
+strlcpy(char * restrict dst, const char * restrict src, size_t maxlen)
+{
+       return _libkernel_string_functions->strlcpy(dst, src, maxlen);
+}
+
+__attribute__((visibility("hidden")))
+size_t
+strlen(const char *str)
+{
+       return _libkernel_string_functions->strlen(str);
+}
+
+__attribute__((visibility("hidden")))
+int
+strncmp(const char *s1, const char *s2, size_t n)
+{
+       return _libkernel_string_functions->strncmp(s1, s2, n);
+}
+
+__attribute__((visibility("hidden")))
+char *
+strncpy(char * restrict dst, const char * restrict src, size_t maxlen)
+{
+       return _libkernel_string_functions->strncpy(dst, src, maxlen);
+}
+
+__attribute__((visibility("hidden")))
+size_t
+strnlen(const char *s, size_t maxlen)
+{
+       return _libkernel_string_functions->strnlen(s, maxlen);
+}
+
+__attribute__((visibility("hidden")))
+char *
+strstr(const char *s, const char *find)
+{
+       return _libkernel_string_functions->strstr(s, find);
+}
+
+/*
+ * mach/mach.h voucher_mach_msg API
+ */
+
+static const struct _libkernel_voucher_functions
+    _libkernel_voucher_functions_empty;
+static _libkernel_voucher_functions_t _libkernel_voucher_functions =
+    &_libkernel_voucher_functions_empty;
+
+kern_return_t
+__libkernel_voucher_init(_libkernel_voucher_functions_t fns)
+{
+       _libkernel_voucher_functions = fns;
+       return KERN_SUCCESS;
+}
+
+boolean_t
+voucher_mach_msg_set(mach_msg_header_t *msg)
+{
+       if (_libkernel_voucher_functions->voucher_mach_msg_set) {
+               return _libkernel_voucher_functions->voucher_mach_msg_set(msg);
+       }
+       return 0;

 }
 
 }
 

-void cthread_set_errno_self(int errno) __attribute__((visibility("hidden")));

 void
 void

-cthread_set_errno_self(int errno)
+voucher_mach_msg_clear(mach_msg_header_t *msg)

 {
 {

-       _libc_set_errno(errno);
+       if (_libkernel_voucher_functions->voucher_mach_msg_clear) {
+               return _libkernel_voucher_functions->voucher_mach_msg_clear(msg);
+       }

 }
 
 }
 

+voucher_mach_msg_state_t
+voucher_mach_msg_adopt(mach_msg_header_t *msg)
+{
+       if (_libkernel_voucher_functions->voucher_mach_msg_adopt) {
+               return _libkernel_voucher_functions->voucher_mach_msg_adopt(msg);
+       }
+       return VOUCHER_MACH_MSG_STATE_UNCHANGED;
+}

 
 

-void _pthread_set_self(void* ptr) __attribute__((visibility("hidden")));

 void
 void

-_pthread_set_self(void* ptr) {}
+voucher_mach_msg_revert(voucher_mach_msg_state_t state)
+{
+       if (_libkernel_voucher_functions->voucher_mach_msg_revert) {
+               return _libkernel_voucher_functions->voucher_mach_msg_revert(state);
+       }
+}