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7116216: StackOverflow GC crash

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GC crash for explicit stack overflow checks after a C2I transition.

Co-authored-by: Yang Wang <yang02.wang@sap.com>
Reviewed-by: coleenp, never
This commit is contained in:
Bertrand Delsart 2011-12-20 12:33:05 +01:00
parent 6e894d5474
commit 82a0e26723
8 changed files with 1441 additions and 17 deletions
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17
hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp
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@ -396,7 +396,6 @@ void TemplateInterpreterGenerator::generate_stack_overflow_check(Register Rframe
Register Rscratch,
Register Rscratch2) {
const int page_size = os::vm_page_size();
Address saved_exception_pc(G2_thread, JavaThread::saved_exception_pc_offset());
Label after_frame_check;
assert_different_registers(Rframe_size, Rscratch, Rscratch2);
@ -436,11 +435,19 @@ void TemplateInterpreterGenerator::generate_stack_overflow_check(Register Rframe
// the bottom of the stack
__ cmp_and_brx_short(SP, Rscratch, Assembler::greater, Assembler::pt, after_frame_check);
// Save the return address as the exception pc
__ st_ptr(O7, saved_exception_pc);
// the stack will overflow, throw an exception
__ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError));
// Note that SP is restored to sender's sp (in the delay slot). This
// is necessary if the sender's frame is an extended compiled frame
// (see gen_c2i_adapter()) and safer anyway in case of JSR292
// adaptations.
// Note also that the restored frame is not necessarily interpreted.
// Use the shared runtime version of the StackOverflowError.
assert(StubRoutines::throw_StackOverflowError_entry() != NULL, "stub not yet generated");
AddressLiteral stub(StubRoutines::throw_StackOverflowError_entry());
__ jump_to(stub, Rscratch);
__ delayed()->mov(O5_savedSP, SP);
// if you get to here, then there is enough stack space
__ bind( after_frame_check );