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6965184: possible races in make_not_entrant_or_zombie

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Reviewed-by: kvn
This commit is contained in:
Tom Rodriguez 2010-07-08 14:29:44 -07:00
parent ae3ddc1514
commit 7533d0caf7
22 changed files with 226 additions and 740 deletions
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23
hotspot/src/share/vm/code/codeCache.cpp
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@ -93,6 +93,8 @@ class CodeBlob_sizes {
CodeHeap * CodeCache::_heap = new CodeHeap();
int CodeCache::_number_of_blobs = 0;
int CodeCache::_number_of_adapters = 0;
int CodeCache::_number_of_nmethods = 0;
int CodeCache::_number_of_nmethods_with_dependencies = 0;
bool CodeCache::_needs_cache_clean = false;
nmethod* CodeCache::_scavenge_root_nmethods = NULL;
@ -176,8 +178,14 @@ void CodeCache::free(CodeBlob* cb) {
verify_if_often();
print_trace("free", cb);
if (cb->is_nmethod() && ((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies--;
if (cb->is_nmethod()) {
_number_of_nmethods--;
if (((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies--;
}
}
if (cb->is_adapter_blob()) {
_number_of_adapters--;
}
_number_of_blobs--;
@ -191,9 +199,16 @@ void CodeCache::free(CodeBlob* cb) {
void CodeCache::commit(CodeBlob* cb) {
// this is called by nmethod::nmethod, which must already own CodeCache_lock
assert_locked_or_safepoint(CodeCache_lock);
if (cb->is_nmethod() && ((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies++;
if (cb->is_nmethod()) {
_number_of_nmethods++;
if (((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies++;
}
}
if (cb->is_adapter_blob()) {
_number_of_adapters++;
}
// flush the hardware I-cache
ICache::invalidate_range(cb->instructions_begin(), cb->instructions_size());
}