Mercurial > hg > graal-jvmci-8
diff src/os_cpu/solaris_x86/vm/os_solaris_x86.cpp @ 671:d0994e5bebce
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 |
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--- 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() {