xnu-1228.3.13.tar.gz

[apple/xnu.git] / osfmk / ppc / commpage / pthread.s

diff --git a/osfmk/ppc/commpage/pthread.s b/osfmk/ppc/commpage/pthread.s
index a53c7ef3d22a9893869e60a598ae980a0be09fee..58dd6c4aaf14e6a1e3c45d17ca25b8582beff9b8 100644 (file)
--- a/osfmk/ppc/commpage/pthread.s
+++ b/osfmk/ppc/commpage/pthread.s
@@ -1,16 +1,19 @@
 /*
  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #include <sys/appleapiopts.h>
@@ -30,43 +33,58 @@
 
         .text
         .align 2
-        .globl EXT(pthread_getspecific_sprg3)
-        .globl EXT(pthread_getspecific_uftrap)
-        .globl EXT(pthread_self_sprg3)
-        .globl EXT(pthread_self_uftrap)
 
 #define        USER_SPRG3      259             // user-mode-readable encoding for SPRG3
 
 
-// *****************************************************
-// * P T H R E A D _ G E T S P E C I F I C _ S P R G 3 *
-// *****************************************************
+// ***********************************************************
+// * P T H R E A D _ G E T S P E C I F I C _ S P R G 3 _ 3 2 *
+// ***********************************************************
 //
-// For processors with user-readable SPRG3.   Called with:
+// For processors with user-readable SPRG3, in 32-bit mode.   Called with:
 //             r3 = word number
 //             r4 = offset to thread specific data (_PTHREAD_TSD_OFFSET)
 
-pthread_getspecific_sprg3:
+pthread_getspecific_sprg3_32:
         slwi   r5,r3,2                         // convert word# to byte offset
         mfspr  r3,USER_SPRG3           // get per-thread cookie
         add            r5,r5,r4                        // add in offset to first word
         lwzx   r3,r3,r5                        // get the thread-specific word
         blr
         
-    COMMPAGE_DESCRIPTOR(pthread_getspecific_sprg3,_COMM_PAGE_PTHREAD_GETSPECIFIC,k64Bit,0,0)
+    COMMPAGE_DESCRIPTOR(pthread_getspecific_sprg3_32,_COMM_PAGE_PTHREAD_GETSPECIFIC,k64Bit,0,kCommPage32)
+
+
+// ***********************************************************
+// * P T H R E A D _ G E T S P E C I F I C _ S P R G 3 _ 6 4 *
+// ***********************************************************
+//
+// For processors with user-readable SPRG3, in 64-bit mode.  This may not be used
+// because the 64-bit ABI uses r13 for the thread-local-data pointer.  Called with:
+//             r3 = word number
+//             r4 = offset to thread specific data (_PTHREAD_TSD_OFFSET)
+
+pthread_getspecific_sprg3_64:
+        sldi   r5,r3,3                         // convert double-word# to byte offset
+        mfspr  r3,USER_SPRG3           // get per-thread cookie
+        add            r5,r5,r4                        // add in offset to first word
+        ldx            r3,r3,r5                        // get the thread-specific doubleword
+        blr
+        
+    COMMPAGE_DESCRIPTOR(pthread_getspecific_sprg3_64,_COMM_PAGE_PTHREAD_GETSPECIFIC,k64Bit,0,kCommPage64)
     
     
 // ***************************************
 // * P T H R E A D _ S E L F _ S P R G 3 *
 // ***************************************
 //
-// For processors with user-readable SPRG3.
+// For processors with user-readable SPRG3.  Useable both in 32 and 64-bit modes.
 
 pthread_self_sprg3:
         mfspr  r3,USER_SPRG3           // get per-thread cookie
         blr
         
-    COMMPAGE_DESCRIPTOR(pthread_self_sprg3,_COMM_PAGE_PTHREAD_SELF,k64Bit,0,0)
+    COMMPAGE_DESCRIPTOR(pthread_self_sprg3,_COMM_PAGE_PTHREAD_SELF,k64Bit,0,kCommPageBoth)
     
         
 // *******************************************************
@@ -86,7 +104,7 @@ pthread_getspecific_uftrap:
         lwzx   r3,r3,r5                        // get the thread-specific word
         blr
 
-    COMMPAGE_DESCRIPTOR(pthread_getspecific_uftrap,_COMM_PAGE_PTHREAD_GETSPECIFIC,0,k64Bit,0)
+    COMMPAGE_DESCRIPTOR(pthread_getspecific_uftrap,_COMM_PAGE_PTHREAD_GETSPECIFIC,0,k64Bit,kCommPage32)
     
         
 // *****************************************
@@ -100,4 +118,4 @@ pthread_self_uftrap:
         sc                                                     // get r3==TLDP
         blr
 
-    COMMPAGE_DESCRIPTOR(pthread_self_uftrap,_COMM_PAGE_PTHREAD_SELF,0,k64Bit,0)
+    COMMPAGE_DESCRIPTOR(pthread_self_uftrap,_COMM_PAGE_PTHREAD_SELF,0,k64Bit,kCommPage32)