3618 // If not, it prepares for stack-unwinding, restoring the callee-save |
3618 // If not, it prepares for stack-unwinding, restoring the callee-save |
3619 // registers of the frame being removed. |
3619 // registers of the frame being removed. |
3620 // |
3620 // |
3621 // address OptoRuntime::handle_exception_C(JavaThread* thread) |
3621 // address OptoRuntime::handle_exception_C(JavaThread* thread) |
3622 |
3622 |
3623 __ set_last_Java_frame(noreg, noreg, NULL); |
3623 // At a method handle call, the stack may not be properly aligned |
|
3624 // when returning with an exception. |
|
3625 address the_pc = __ pc(); |
|
3626 __ set_last_Java_frame(noreg, noreg, the_pc); |
3624 __ mov(c_rarg0, r15_thread); |
3627 __ mov(c_rarg0, r15_thread); |
|
3628 __ andptr(rsp, -(StackAlignmentInBytes)); // Align stack |
3625 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, OptoRuntime::handle_exception_C))); |
3629 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, OptoRuntime::handle_exception_C))); |
3626 |
3630 |
3627 // Set an oopmap for the call site. This oopmap will only be used if we |
3631 // Set an oopmap for the call site. This oopmap will only be used if we |
3628 // are unwinding the stack. Hence, all locations will be dead. |
3632 // are unwinding the stack. Hence, all locations will be dead. |
3629 // Callee-saved registers will be the same as the frame above (i.e., |
3633 // Callee-saved registers will be the same as the frame above (i.e., |
3630 // handle_exception_stub), since they were restored when we got the |
3634 // handle_exception_stub), since they were restored when we got the |
3631 // exception. |
3635 // exception. |
3632 |
3636 |
3633 OopMapSet* oop_maps = new OopMapSet(); |
3637 OopMapSet* oop_maps = new OopMapSet(); |
3634 |
3638 |
3635 oop_maps->add_gc_map( __ pc()-start, new OopMap(SimpleRuntimeFrame::framesize, 0)); |
3639 oop_maps->add_gc_map(the_pc - start, new OopMap(SimpleRuntimeFrame::framesize, 0)); |
3636 |
3640 |
3637 __ reset_last_Java_frame(false, false); |
3641 __ reset_last_Java_frame(false, true); |
3638 |
3642 |
3639 // Restore callee-saved registers |
3643 // Restore callee-saved registers |
3640 |
3644 |
3641 // rbp is an implicitly saved callee saved register (i.e. the calling |
3645 // rbp is an implicitly saved callee saved register (i.e. the calling |
3642 // convention will save restore it in prolog/epilog) Other than that |
3646 // convention will save restore it in prolog/epilog) Other than that |