460
461 #ifdef ASSERT
462 Label stack_base_okay, stack_size_okay;
463 // verify that thread stack base is non-zero
464 __ cmpptr(stack_base, (int32_t)NULL_WORD);
465 __ jcc(Assembler::notEqual, stack_base_okay);
466 __ stop("stack base is zero");
467 __ bind(stack_base_okay);
468 // verify that thread stack size is non-zero
469 __ cmpptr(stack_size, 0);
470 __ jcc(Assembler::notEqual, stack_size_okay);
471 __ stop("stack size is zero");
472 __ bind(stack_size_okay);
473 #endif
474
475 // Add stack base to locals and subtract stack size
476 __ addptr(rax, stack_base);
477 __ subptr(rax, stack_size);
478
479 // Use the maximum number of pages we might bang.
480 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages) ? StackShadowPages :
481 (StackRedPages+StackYellowPages);
482
483 // add in the red and yellow zone sizes
484 __ addptr(rax, max_pages * page_size);
485
486 // check against the current stack bottom
487 __ cmpptr(rsp, rax);
488 __ jcc(Assembler::above, after_frame_check);
489
490 // Restore sender's sp as SP. This is necessary if the sender's
491 // frame is an extended compiled frame (see gen_c2i_adapter())
492 // and safer anyway in case of JSR292 adaptations.
493
494 __ pop(rax); // return address must be moved if SP is changed
495 __ mov(rsp, r13);
496 __ push(rax);
497
498 // Note: the restored frame is not necessarily interpreted.
499 // Use the shared runtime version of the StackOverflowError.
500 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated");
501 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry()));
|
460
461 #ifdef ASSERT
462 Label stack_base_okay, stack_size_okay;
463 // verify that thread stack base is non-zero
464 __ cmpptr(stack_base, (int32_t)NULL_WORD);
465 __ jcc(Assembler::notEqual, stack_base_okay);
466 __ stop("stack base is zero");
467 __ bind(stack_base_okay);
468 // verify that thread stack size is non-zero
469 __ cmpptr(stack_size, 0);
470 __ jcc(Assembler::notEqual, stack_size_okay);
471 __ stop("stack size is zero");
472 __ bind(stack_size_okay);
473 #endif
474
475 // Add stack base to locals and subtract stack size
476 __ addptr(rax, stack_base);
477 __ subptr(rax, stack_size);
478
479 // Use the maximum number of pages we might bang.
480 const int max_pages = StackShadowPages > (StackRedPages+StackYellowPages+StackReservedPages) ? StackShadowPages :
481 (StackRedPages+StackYellowPages+StackReservedPages);
482
483 // add in the red and yellow zone sizes
484 __ addptr(rax, max_pages * page_size);
485
486 // check against the current stack bottom
487 __ cmpptr(rsp, rax);
488 __ jcc(Assembler::above, after_frame_check);
489
490 // Restore sender's sp as SP. This is necessary if the sender's
491 // frame is an extended compiled frame (see gen_c2i_adapter())
492 // and safer anyway in case of JSR292 adaptations.
493
494 __ pop(rax); // return address must be moved if SP is changed
495 __ mov(rsp, r13);
496 __ push(rax);
497
498 // Note: the restored frame is not necessarily interpreted.
499 // Use the shared runtime version of the StackOverflowError.
500 assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated");
501 __ jump(ExternalAddress(StubRoutines::throw_StackOverflowError_entry()));
|