Mercurial > hg > graal-compiler
diff src/share/vm/runtime/os.cpp @ 10405:f2110083203d
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 |
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--- a/src/share/vm/runtime/os.cpp Fri Jun 07 09:33:01 2013 -0700 +++ b/src/share/vm/runtime/os.cpp Mon Jun 10 11:30:51 2013 +0200 @@ -265,8 +265,7 @@ VMThread::execute(&op1); Universe::print_heap_at_SIGBREAK(); if (PrintClassHistogram) { - VM_GC_HeapInspection op1(gclog_or_tty, true /* force full GC before heap inspection */, - true /* need_prologue */); + VM_GC_HeapInspection op1(gclog_or_tty, true /* force full GC before heap inspection */); VMThread::execute(&op1); } if (JvmtiExport::should_post_data_dump()) { @@ -1444,11 +1443,16 @@ return (int) i; } +void os::SuspendedThreadTask::run() { + assert(Threads_lock->owned_by_self() || (_thread == VMThread::vm_thread()), "must have threads lock to call this"); + internal_do_task(); + _done = true; +} + bool os::create_stack_guard_pages(char* addr, size_t bytes) { return os::pd_create_stack_guard_pages(addr, bytes); } - char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { char* result = pd_reserve_memory(bytes, addr, alignment_hint); if (result != NULL) { @@ -1551,3 +1555,19 @@ pd_realign_memory(addr, bytes, alignment_hint); } +#ifndef TARGET_OS_FAMILY_windows +/* try to switch state from state "from" to state "to" + * returns the state set after the method is complete + */ +os::SuspendResume::State os::SuspendResume::switch_state(os::SuspendResume::State from, + os::SuspendResume::State to) +{ + os::SuspendResume::State result = + (os::SuspendResume::State) Atomic::cmpxchg((jint) to, (jint *) &_state, (jint) from); + if (result == from) { + // success + return to; + } + return result; +} +#endif