Changeset b158d8f for src/libcfa/bits/locks.h

Timestamp:

Jan 23, 2018, 5:02:46 PM (6 years ago)

Author:

Alan Kennedy <afakenne@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

b6838214

Parents:

6ba16fa

Message:

add context switch for ARM

File:

• src/libcfa/bits/locks.h (modified) (4 diffs)

src/libcfa/bits/locks.h

@@ -9 +9 @@
 // Author           : Thierry Delisle
 // Created On       : Tue Oct 31 15:14:38 2017
-// Last Modified By : --
-// Last Modified On : --
-// Update Count     : 0
+// Last Modified By : Peter A. Buhr
+// Last Modified On : Fri Dec  8 16:02:22 2017
+// Update Count     : 1
 //
 
@@ -24 +24 @@
 #elif defined( __i386 ) || defined( __x86_64 )
         #define Pause() __asm__ __volatile__ ( "pause" : : : )
+#elif defined( __ARM_ARCH )
+        #define Pause() __asm__ __volatile__ ( "nop" : : : )
 #else
         #error unsupported architecture
 #endif
 
-#if defined( __i386 ) || defined( __x86_64 )
+#if defined( __i386 ) || defined( __x86_64 ) || defined( __ARM_ARCH )
         // Intel recommendation
         #define __ALIGN__ __attribute__(( aligned (128) ))
@@ -37 +39 @@
 #endif
 
-#if defined( __x86_64 )
+#if __SIZEOF_SIZE_T__ == 8
         #define __lock_test_and_test_and_set( lock ) (lock) == 0 && __sync_lock_test_and_set_8( &(lock), 1 ) == 0
         #define __lock_release( lock ) __sync_lock_release_8( &(lock) );
-#elif defined( __i386 )
+#elif __SIZEOF_SIZE_T__ == 4
         #define __lock_test_and_test_and_set( lock ) (lock) == 0 && __sync_lock_test_and_set_4( &(lock), 1 ) == 0
         #define __lock_release( lock ) __sync_lock_release_4( &(lock) );
@@ -48 +50 @@
 
 struct __spinlock_t {
-        __ALIGN__ volatile uintptr_t lock;
+        __ALIGN__ volatile size_t lock;
         #ifdef __CFA_DEBUG__
                 const char * prev_name;