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8151956: Support non-continuous CodeBlobs in HotSpot

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Reviewed-by: iveresov, thartmann, simonis
This commit is contained in:
Rickard Bäckman 2016-04-26 10:28:51 +02:00
parent 67ff4391ec
commit b853eb7f5c
100 changed files with 2486 additions and 1868 deletions
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6
hotspot/src/share/vm/oops/method.cpp
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@ -746,7 +746,7 @@ void Method::set_native_function(address function, bool post_event_flag) {
// This function can be called more than once. We must make sure that we always
// use the latest registered method -> check if a stub already has been generated.
// If so, we have to make it not_entrant.
nmethod* nm = code(); // Put it into local variable to guard against concurrent updates
CompiledMethod* nm = code(); // Put it into local variable to guard against concurrent updates
if (nm != NULL) {
nm->make_not_entrant();
}
@ -1046,12 +1046,12 @@ address Method::verified_code_entry() {
// Not inline to avoid circular ref.
bool Method::check_code() const {
// cached in a register or local. There's a race on the value of the field.
nmethod *code = (nmethod *)OrderAccess::load_ptr_acquire(&_code);
CompiledMethod *code = (CompiledMethod *)OrderAccess::load_ptr_acquire(&_code);
return code == NULL || (code->method() == NULL) || (code->method() == (Method*)this && !code->is_osr_method());
}
// Install compiled code. Instantly it can execute.
void Method::set_code(methodHandle mh, nmethod *code) {
void Method::set_code(methodHandle mh, CompiledMethod *code) {
assert( code, "use clear_code to remove code" );
assert( mh->check_code(), "" );