--- a/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp Fri Dec 16 17:33:08 2011 -0500
+++ b/hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp Tue Dec 20 12:33:05 2011 +0100
@@ -396,7 +396,6 @@
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 @@
// 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
+
+ // 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.
- // the stack will overflow, throw an exception
- __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_StackOverflowError));
+ // 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 );