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src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp

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*** 29,138 **** #include "runtime/orderAccess.hpp" #include "runtime/os.hpp" // Implementation of class OrderAccess. ! // For Sun Studio - implementation is in solaris_i486.il. ! // For gcc - implementation is just below. ! extern "C" void _OrderAccess_acquire(); ! extern "C" void _OrderAccess_fence(); ! ! inline void OrderAccess::loadload() { acquire(); } ! inline void OrderAccess::storestore() { release(); } ! inline void OrderAccess::loadstore() { acquire(); } ! inline void OrderAccess::storeload() { fence(); } ! ! inline void OrderAccess::acquire() { ! _OrderAccess_acquire(); ! } ! inline void OrderAccess::release() { ! // Avoid hitting the same cache-line from ! // different threads. ! volatile jint local_dummy = 0; ! } inline void OrderAccess::fence() { if (os::is_MP()) { - _OrderAccess_fence(); - } - } - - #ifdef _GNU_SOURCE - - extern "C" { - inline void _OrderAccess_acquire() { - volatile intptr_t local_dummy; #ifdef AMD64 ! __asm__ volatile ("movq 0(%%rsp), %0" : "=r" (local_dummy) : : "memory"); #else - __asm__ volatile ("movl 0(%%esp),%0" : "=r" (local_dummy) : : "memory"); - #endif // AMD64 - } - inline void _OrderAccess_fence() { - // Always use locked addl since mfence is sometimes expensive __asm__ volatile ("lock; addl $0,0(%%esp)" : : : "cc", "memory"); } ! } ! #endif // GNU_SOURCE ! ! inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; } ! inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; } ! inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; } ! inline jlong OrderAccess::load_acquire(volatile jlong* p) { return Atomic::load(p); } ! inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; } ! inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; } ! inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; } ! inline julong OrderAccess::load_acquire(volatile julong* p) { return Atomic::load((volatile jlong*)p); } ! inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; } ! inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return jdouble_cast(Atomic::load((volatile jlong*)p)); } ! ! inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; } ! inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; } ! inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; } ! ! inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; } ! inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; } ! inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; } ! inline void OrderAccess::release_store(volatile jlong* p, jlong v) { Atomic::store(v, p); } ! inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; } ! inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; } ! inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; } ! inline void OrderAccess::release_store(volatile julong* p, julong v) { Atomic::store((jlong)v, (volatile jlong*)p); } ! inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; } ! inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { release_store((volatile jlong*)p, jlong_cast(v)); } ! ! inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; } ! inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; } ! ! inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } ! inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); } ! ! inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); } ! inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); } ! ! inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { release_store(p, v); fence(); } ! inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store((jlong *)p, (jlong)v); fence(); } ! inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); } ! inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { release_store_fence((volatile jlong*)p, jlong_cast(v)); } ! ! inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); } ! inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); } #endif // OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP --- 29,60 ---- #include "runtime/orderAccess.hpp" #include "runtime/os.hpp" // Implementation of class OrderAccess. ! // A compiler barrier, forcing the C++ compiler to invalidate all memory assumptions ! inline void compiler_barrier() { ! __asm__ volatile ("" : : : "memory"); } ! inline void OrderAccess::loadload() { compiler_barrier(); } ! inline void OrderAccess::storestore() { compiler_barrier(); } ! inline void OrderAccess::loadstore() { compiler_barrier(); } ! inline void OrderAccess::storeload() { fence(); } ! ! inline void OrderAccess::acquire() { compiler_barrier(); } ! inline void OrderAccess::release() { compiler_barrier(); } inline void OrderAccess::fence() { if (os::is_MP()) { #ifdef AMD64 ! __asm__ volatile ("lock; addl $0,0(%%rsp)" : : : "cc", "memory"); #else __asm__ volatile ("lock; addl $0,0(%%esp)" : : : "cc", "memory"); + #endif } ! compiler_barrier(); } ! #define VM_HAS_GENERALIZED_ORDER_ACCESS 1 #endif // OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP
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