2508 // rdi & rsi (also r15) are callee saved -> nothing to do
2509 #ifdef ASSERT
2510 guarantee(java_thread != rax, "change this code");
2511 push(rax);
2512 { Label L;
2513 get_thread(rax);
2514 cmpptr(java_thread, rax);
2515 jcc(Assembler::equal, L);
2516 STOP("MacroAssembler::call_VM_base: rdi not callee saved?");
2517 bind(L);
2518 }
2519 pop(rax);
2520 #endif
2521 } else {
2522 get_thread(java_thread);
2523 }
2524 // reset last Java frame
2525 // Only interpreter should have to clear fp
2526 reset_last_Java_frame(java_thread, true, false);
2527
2528 #ifndef CC_INTERP
2529 // C++ interp handles this in the interpreter
2530 check_and_handle_popframe(java_thread);
2531 check_and_handle_earlyret(java_thread);
2532 #endif /* CC_INTERP */
2533
2534 if (check_exceptions) {
2535 // check for pending exceptions (java_thread is set upon return)
2536 cmpptr(Address(java_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD);
2537 #ifndef _LP64
2538 jump_cc(Assembler::notEqual,
2539 RuntimeAddress(StubRoutines::forward_exception_entry()));
2540 #else
2541 // This used to conditionally jump to forward_exception however it is
2542 // possible if we relocate that the branch will not reach. So we must jump
2543 // around so we can always reach
2544
2545 Label ok;
2546 jcc(Assembler::equal, ok);
2547 jump(RuntimeAddress(StubRoutines::forward_exception_entry()));
2548 bind(ok);
2549 #endif // LP64
2550 }
2551
2552 // get oop result if there is one and reset the value in the thread
|
2508 // rdi & rsi (also r15) are callee saved -> nothing to do
2509 #ifdef ASSERT
2510 guarantee(java_thread != rax, "change this code");
2511 push(rax);
2512 { Label L;
2513 get_thread(rax);
2514 cmpptr(java_thread, rax);
2515 jcc(Assembler::equal, L);
2516 STOP("MacroAssembler::call_VM_base: rdi not callee saved?");
2517 bind(L);
2518 }
2519 pop(rax);
2520 #endif
2521 } else {
2522 get_thread(java_thread);
2523 }
2524 // reset last Java frame
2525 // Only interpreter should have to clear fp
2526 reset_last_Java_frame(java_thread, true, false);
2527
2528 // C++ interp handles this in the interpreter
2529 check_and_handle_popframe(java_thread);
2530 check_and_handle_earlyret(java_thread);
2531
2532 if (check_exceptions) {
2533 // check for pending exceptions (java_thread is set upon return)
2534 cmpptr(Address(java_thread, Thread::pending_exception_offset()), (int32_t) NULL_WORD);
2535 #ifndef _LP64
2536 jump_cc(Assembler::notEqual,
2537 RuntimeAddress(StubRoutines::forward_exception_entry()));
2538 #else
2539 // This used to conditionally jump to forward_exception however it is
2540 // possible if we relocate that the branch will not reach. So we must jump
2541 // around so we can always reach
2542
2543 Label ok;
2544 jcc(Assembler::equal, ok);
2545 jump(RuntimeAddress(StubRoutines::forward_exception_entry()));
2546 bind(ok);
2547 #endif // LP64
2548 }
2549
2550 // get oop result if there is one and reset the value in the thread
|