diff -r 873c4aea8d1b -r e8970711113b hotspot/src/share/vm/oops/method.hpp --- a/hotspot/src/share/vm/oops/method.hpp Fri Apr 08 12:26:29 2016 -0700 +++ b/hotspot/src/share/vm/oops/method.hpp Thu Apr 07 22:03:04 2016 -0700 @@ -93,8 +93,6 @@ #endif // Entry point for calling both from and to the interpreter. address _i2i_entry; // All-args-on-stack calling convention - // Adapter blob (i2c/c2i) for this Method*. Set once when method is linked. - AdapterHandlerEntry* _adapter; // Entry point for calling from compiled code, to compiled code if it exists // or else the interpreter. volatile address _from_compiled_entry; // Cache of: _code ? _code->entry_point() : _adapter->c2i_entry() @@ -137,6 +135,7 @@ static address make_adapters(methodHandle mh, TRAPS); volatile address from_compiled_entry() const { return (address)OrderAccess::load_ptr_acquire(&_from_compiled_entry); } + volatile address from_compiled_entry_no_trampoline() const; volatile address from_interpreted_entry() const{ return (address)OrderAccess::load_ptr_acquire(&_from_interpreted_entry); } // access flag @@ -431,15 +430,23 @@ nmethod* volatile code() const { assert( check_code(), "" ); return (nmethod *)OrderAccess::load_ptr_acquire(&_code); } void clear_code(); // Clear out any compiled code static void set_code(methodHandle mh, nmethod* code); - void set_adapter_entry(AdapterHandlerEntry* adapter) { _adapter = adapter; } + void set_adapter_entry(AdapterHandlerEntry* adapter) { + constMethod()->set_adapter_entry(adapter); + } + void update_adapter_trampoline(AdapterHandlerEntry* adapter) { + constMethod()->update_adapter_trampoline(adapter); + } + address get_i2c_entry(); address get_c2i_entry(); address get_c2i_unverified_entry(); - AdapterHandlerEntry* adapter() { return _adapter; } + AdapterHandlerEntry* adapter() const { + return constMethod()->adapter(); + } // setup entry points void link_method(const methodHandle& method, TRAPS); - // clear entry points. Used by sharing code - void unlink_method(); + // clear entry points. Used by sharing code during dump time + void unlink_method() NOT_CDS_RETURN; // vtable index enum VtableIndexFlag { @@ -465,7 +472,15 @@ // interpreter entry address interpreter_entry() const { return _i2i_entry; } // Only used when first initialize so we can set _i2i_entry and _from_interpreted_entry - void set_interpreter_entry(address entry) { _i2i_entry = entry; _from_interpreted_entry = entry; } + void set_interpreter_entry(address entry) { + assert(!is_shared(), "shared method's interpreter entry should not be changed at run time"); + if (_i2i_entry != entry) { + _i2i_entry = entry; + } + if (_from_interpreted_entry != entry) { + _from_interpreted_entry = entry; + } + } // native function (used for native methods only) enum {