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diff src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp @ 671:d0994e5bebce

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6822204: volatile fences should prefer lock:addl to actual mfence instructions Reviewed-by: kvn, phh
author never
date Thu, 26 Mar 2009 14:31:45 -0700
parents 7bb995fbd3c0
children 3f5b7efb9642
line wrap: on
line diff
--- a/src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp	Tue Mar 24 15:09:52 2009 -0700
+++ b/src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp	Thu Mar 26 14:31:45 2009 -0700
@@ -794,7 +794,6 @@
 typedef jint  cmpxchg_func_t     (jint,  volatile jint*,  jint);
 typedef jlong cmpxchg_long_func_t(jlong, volatile jlong*, jlong);
 typedef jint  add_func_t         (jint,  volatile jint*);
-typedef void  fence_func_t       ();
 
 jint os::atomic_xchg_bootstrap(jint exchange_value, volatile jint* dest) {
   // try to use the stub:
@@ -856,25 +855,10 @@
   return (*dest) += add_value;
 }
 
-void os::fence_bootstrap() {
-  // try to use the stub:
-  fence_func_t* func = CAST_TO_FN_PTR(fence_func_t*, StubRoutines::fence_entry());
-
-  if (func != NULL) {
-    os::fence_func = func;
-    (*func)();
-    return;
-  }
-  assert(Threads::number_of_threads() == 0, "for bootstrap only");
-
-  // don't have to do anything for a single thread
-}
-
 xchg_func_t*         os::atomic_xchg_func         = os::atomic_xchg_bootstrap;
 cmpxchg_func_t*      os::atomic_cmpxchg_func      = os::atomic_cmpxchg_bootstrap;
 cmpxchg_long_func_t* os::atomic_cmpxchg_long_func = os::atomic_cmpxchg_long_bootstrap;
 add_func_t*          os::atomic_add_func          = os::atomic_add_bootstrap;
-fence_func_t*        os::fence_func               = os::fence_bootstrap;
 
 extern "C" _solaris_raw_setup_fpu(address ptr);
 void os::setup_fpu() {