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comparison src/share/vm/runtime/os.cpp @ 10405:f2110083203d

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8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
parents c18152e0554e
children 836a62f43af9 a837fa3d3f86
comparison
equal deleted inserted replaced
10404:d0add7016434 10405:f2110083203d
263 VMThread::execute(&jni_op); 263 VMThread::execute(&jni_op);
264 VM_FindDeadlocks op1(tty); 264 VM_FindDeadlocks op1(tty);
265 VMThread::execute(&op1); 265 VMThread::execute(&op1);
266 Universe::print_heap_at_SIGBREAK(); 266 Universe::print_heap_at_SIGBREAK();
267 if (PrintClassHistogram) { 267 if (PrintClassHistogram) {
268 VM_GC_HeapInspection op1(gclog_or_tty, true /* force full GC before heap inspection */, 268 VM_GC_HeapInspection op1(gclog_or_tty, true /* force full GC before heap inspection */);
269 true /* need_prologue */);
270 VMThread::execute(&op1); 269 VMThread::execute(&op1);
271 } 270 }
272 if (JvmtiExport::should_post_data_dump()) { 271 if (JvmtiExport::should_post_data_dump()) {
273 JvmtiExport::post_data_dump(); 272 JvmtiExport::post_data_dump();
274 } 273 }
1442 // If we reached EOF, it will be returned on next call. 1441 // If we reached EOF, it will be returned on next call.
1443 1442
1444 return (int) i; 1443 return (int) i;
1445 } 1444 }
1446 1445
1446 void os::SuspendedThreadTask::run() {
1447 assert(Threads_lock->owned_by_self() || (_thread == VMThread::vm_thread()), "must have threads lock to call this");
1448 internal_do_task();
1449 _done = true;
1450 }
1451
1447 bool os::create_stack_guard_pages(char* addr, size_t bytes) { 1452 bool os::create_stack_guard_pages(char* addr, size_t bytes) {
1448 return os::pd_create_stack_guard_pages(addr, bytes); 1453 return os::pd_create_stack_guard_pages(addr, bytes);
1449 } 1454 }
1450
1451 1455
1452 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { 1456 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) {
1453 char* result = pd_reserve_memory(bytes, addr, alignment_hint); 1457 char* result = pd_reserve_memory(bytes, addr, alignment_hint);
1454 if (result != NULL) { 1458 if (result != NULL) {
1455 MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC); 1459 MemTracker::record_virtual_memory_reserve((address)result, bytes, CALLER_PC);
1549 1553
1550 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { 1554 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
1551 pd_realign_memory(addr, bytes, alignment_hint); 1555 pd_realign_memory(addr, bytes, alignment_hint);
1552 } 1556 }
1553 1557
1558 #ifndef TARGET_OS_FAMILY_windows
1559 /* try to switch state from state "from" to state "to"
1560 * returns the state set after the method is complete
1561 */
1562 os::SuspendResume::State os::SuspendResume::switch_state(os::SuspendResume::State from,
1563 os::SuspendResume::State to)
1564 {
1565 os::SuspendResume::State result =
1566 (os::SuspendResume::State) Atomic::cmpxchg((jint) to, (jint *) &_state, (jint) from);
1567 if (result == from) {
1568 // success
1569 return to;
1570 }
1571 return result;
1572 }
1573 #endif