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comparison src/cpu/x86/vm/templateInterpreter_x86_32.cpp @ 4743:dca455dea3a7

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7116216: StackOverflow GC crash Summary: GC crash for explicit stack overflow checks after a C2I transition. Reviewed-by: coleenp, never Contributed-by: yang02.wang@sap.com, bertrand.delsart@oracle.com
author bdelsart
date Tue, 20 Dec 2011 12:33:05 +0100
parents b20d64f83668
children 22cee0ee8927
comparison
equal deleted inserted replaced
4742:8fdf463085e1 4743:dca455dea3a7
520 __ cmpptr(rsp, rax); 520 __ cmpptr(rsp, rax);
521 __ jcc(Assembler::above, after_frame_check_pop); 521 __ jcc(Assembler::above, after_frame_check_pop);
522 522
523 __ pop(rsi); // get saved bcp / (c++ prev state ). 523 __ pop(rsi); // get saved bcp / (c++ prev state ).
524 524
525 __ pop(rax); // get return address 525 // Restore sender's sp as SP. This is necessary if the sender's
526 __ jump(ExternalAddress(Interpreter::throw_StackOverflowError_entry())); 526 // frame is an extended compiled frame (see gen_c2i_adapter())
527 527 // and safer anyway in case of JSR292 adaptations.
528
529 __ pop(rax); // return address must be moved if SP is changed
530 __ mov(rsp, rsi);
531 __ push(rax);
532
533 // Note: the restored frame is not necessarily interpreted.
534 // Use the shared runtime version of the StackOverflowError.
535 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated");
536 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry()));
528 // all done with frame size check 537 // all done with frame size check
529 __ bind(after_frame_check_pop); 538 __ bind(after_frame_check_pop);
530 __ pop(rsi); 539 __ pop(rsi);
531 540
532 __ bind(after_frame_check); 541 __ bind(after_frame_check);