xnu-6153.81.5.tar.gz

[apple/xnu.git] / libsyscall / wrappers / unix03 / mmap.c

diff --git a/libsyscall/wrappers/unix03/mmap.c b/libsyscall/wrappers/unix03/mmap.c
index 60c6bba3203561d2d0b7e34d591b49c66dba211a..203301e3f8c32217c3750b4addfc78383ff29410 100644 (file)
--- a/libsyscall/wrappers/unix03/mmap.c
+++ b/libsyscall/wrappers/unix03/mmap.c
@@ -2,14 +2,14 @@
  * Copyright (c) 2004 Apple Computer, 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,
@@ -17,7 +17,7 @@
  * 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@
  */
 
@@ -28,6 +28,8 @@
 #include <sys/mman.h>
 #include <mach/vm_param.h>
 #include <errno.h>
+#include <mach/mach_init.h>
+#include "stack_logging_internal.h"
 
 void *__mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off);
 
@@ -42,21 +44,33 @@ mmap(void *addr, size_t len, int prot, int flags, int fildes, off_t off)
 {
        /*
         * Preemptory failures:
-        * 
+        *
         * o    off is not a multiple of the page size
         * o    flags does not contain either MAP_PRIVATE or MAP_SHARED
         * o    len is zero
         */
-       extern void cthread_set_errno_self(int);
+       extern void cerror_nocancel(int);
        if ((off & PAGE_MASK) ||
            (((flags & MAP_PRIVATE) != MAP_PRIVATE) &&
-            ((flags & MAP_SHARED) != MAP_SHARED)) ||
+           ((flags & MAP_SHARED) != MAP_SHARED)) ||
            (len == 0)) {
-               cthread_set_errno_self(EINVAL);
-               return(MAP_FAILED);
+               cerror_nocancel(EINVAL);
+               return MAP_FAILED;
+       }
+
+       void *ptr = __mmap(addr, len, prot, flags, fildes, off);
+
+       if (__syscall_logger) {
+               int stackLoggingFlags = stack_logging_type_vm_allocate;
+               if (flags & MAP_ANON) {
+                       stackLoggingFlags |= (fildes & VM_FLAGS_ALIAS_MASK);
+               } else {
+                       stackLoggingFlags |= stack_logging_type_mapped_file_or_shared_mem;
+               }
+               __syscall_logger(stackLoggingFlags, (uintptr_t)mach_task_self(), (uintptr_t)len, 0, (uintptr_t)ptr, 0);
        }
 
-       return(__mmap(addr, len, prot, flags, fildes, off));
+       return ptr;
 }
 
 #endif /* __DARWIN_UNIX03 */