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comparison src/share/vm/runtime/sharedRuntime.cpp @ 465:dc16daa0329d

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6739363: Xcheck jni doesn't check native function arguments Summary: Fix adds support for verifying arguments with -Xcheck:jni. Reviewed-by: coleenp
author poonam
date Thu, 04 Dec 2008 17:29:56 -0800
parents 1ee8caae33af
children 6d8fc951eb25 70998f2e05ef
comparison
equal deleted inserted replaced
414:348be627a148 465:dc16daa0329d
554 // We haven't yet entered the callee frame. Fabricate an 554 // We haven't yet entered the callee frame. Fabricate an
555 // exception and begin dispatching it in the caller. Since 555 // exception and begin dispatching it in the caller. Since
556 // the caller was at a call site, it's safe to destroy all 556 // the caller was at a call site, it's safe to destroy all
557 // caller-saved registers, as these entry points do. 557 // caller-saved registers, as these entry points do.
558 VtableStub* vt_stub = VtableStubs::stub_containing(pc); 558 VtableStub* vt_stub = VtableStubs::stub_containing(pc);
559 guarantee(vt_stub != NULL, "unable to find SEGVing vtable stub"); 559
560 // If vt_stub is NULL, then return NULL to signal handler to report the SEGV error.
561 if (vt_stub == NULL) return NULL;
562
560 if (vt_stub->is_abstract_method_error(pc)) { 563 if (vt_stub->is_abstract_method_error(pc)) {
561 assert(!vt_stub->is_vtable_stub(), "should never see AbstractMethodErrors from vtable-type VtableStubs"); 564 assert(!vt_stub->is_vtable_stub(), "should never see AbstractMethodErrors from vtable-type VtableStubs");
562 return StubRoutines::throw_AbstractMethodError_entry(); 565 return StubRoutines::throw_AbstractMethodError_entry();
563 } else { 566 } else {
564 return StubRoutines::throw_NullPointerException_at_call_entry(); 567 return StubRoutines::throw_NullPointerException_at_call_entry();
565 } 568 }
566 } else { 569 } else {
567 CodeBlob* cb = CodeCache::find_blob(pc); 570 CodeBlob* cb = CodeCache::find_blob(pc);
568 guarantee(cb != NULL, "exception happened outside interpreter, nmethods and vtable stubs (1)"); 571
572 // If code blob is NULL, then return NULL to signal handler to report the SEGV error.
573 if (cb == NULL) return NULL;
569 574
570 // Exception happened in CodeCache. Must be either: 575 // Exception happened in CodeCache. Must be either:
571 // 1. Inline-cache check in C2I handler blob, 576 // 1. Inline-cache check in C2I handler blob,
572 // 2. Inline-cache check in nmethod, or 577 // 2. Inline-cache check in nmethod, or
573 // 3. Implict null exception in nmethod 578 // 3. Implict null exception in nmethod
574 579
575 if (!cb->is_nmethod()) { 580 if (!cb->is_nmethod()) {
576 guarantee(cb->is_adapter_blob(), 581 guarantee(cb->is_adapter_blob(),
577 "exception happened outside interpreter, nmethods and vtable stubs (2)"); 582 "exception happened outside interpreter, nmethods and vtable stubs (1)");
578 // There is no handler here, so we will simply unwind. 583 // There is no handler here, so we will simply unwind.
579 return StubRoutines::throw_NullPointerException_at_call_entry(); 584 return StubRoutines::throw_NullPointerException_at_call_entry();
580 } 585 }
581 586
582 // Otherwise, it's an nmethod. Consult its exception handlers. 587 // Otherwise, it's an nmethod. Consult its exception handlers.