From 1d94d0bddcdd6de4f2f9d8a7567601045f53bda4 Mon Sep 17 00:00:00 2001 From: twisti Date: Thu, 24 Oct 2013 16:23:07 -0700 Subject: 8026328: Setting a breakpoint on invokedynamic crashes the JVM Reviewed-by: jrose, roland --- src/cpu/sparc/vm/templateInterpreter_sparc.cpp | 41 ++++++++------------------ 1 file changed, 12 insertions(+), 29 deletions(-) (limited to 'src/cpu/sparc/vm/templateInterpreter_sparc.cpp') diff --git a/src/cpu/sparc/vm/templateInterpreter_sparc.cpp b/src/cpu/sparc/vm/templateInterpreter_sparc.cpp index b6f8a5a5d..40847f8c2 100644 --- a/src/cpu/sparc/vm/templateInterpreter_sparc.cpp +++ b/src/cpu/sparc/vm/templateInterpreter_sparc.cpp @@ -153,13 +153,9 @@ address TemplateInterpreterGenerator::generate_StackOverflowError_handler() { } -address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) { - TosState incoming_state = state; - - Label cont; - address compiled_entry = __ pc(); - +address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, size_t index_size) { address entry = __ pc(); + #if !defined(_LP64) && defined(COMPILER2) // All return values are where we want them, except for Longs. C2 returns // longs in G1 in the 32-bit build whereas the interpreter wants them in O0/O1. @@ -170,14 +166,12 @@ address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, // do this here. Unfortunately if we did a rethrow we'd see an machepilog node // first which would move g1 -> O0/O1 and destroy the exception we were throwing. - if (incoming_state == ltos) { + if (state == ltos) { __ srl (G1, 0, O1); __ srlx(G1, 32, O0); } #endif // !_LP64 && COMPILER2 - __ bind(cont); - // The callee returns with the stack possibly adjusted by adapter transition // We remove that possible adjustment here. // All interpreter local registers are untouched. Any result is passed back @@ -186,29 +180,18 @@ address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, __ mov(Llast_SP, SP); // Remove any adapter added stack space. - Label L_got_cache, L_giant_index; const Register cache = G3_scratch; - const Register size = G1_scratch; - if (EnableInvokeDynamic) { - __ ldub(Address(Lbcp, 0), G1_scratch); // Load current bytecode. - __ cmp_and_br_short(G1_scratch, Bytecodes::_invokedynamic, Assembler::equal, Assembler::pn, L_giant_index); - } - __ get_cache_and_index_at_bcp(cache, G1_scratch, 1); - __ bind(L_got_cache); - __ ld_ptr(cache, ConstantPoolCache::base_offset() + - ConstantPoolCacheEntry::flags_offset(), size); - __ and3(size, 0xFF, size); // argument size in words - __ sll(size, Interpreter::logStackElementSize, size); // each argument size in bytes - __ add(Lesp, size, Lesp); // pop arguments + const Register index = G1_scratch; + __ get_cache_and_index_at_bcp(cache, index, 1, index_size); + + const Register flags = cache; + __ ld_ptr(cache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), flags); + const Register parameter_size = flags; + __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, parameter_size); // argument size in words + __ sll(parameter_size, Interpreter::logStackElementSize, parameter_size); // each argument size in bytes + __ add(Lesp, parameter_size, Lesp); // pop arguments __ dispatch_next(state, step); - // out of the main line of code... - if (EnableInvokeDynamic) { - __ bind(L_giant_index); - __ get_cache_and_index_at_bcp(cache, G1_scratch, 1, sizeof(u4)); - __ ba_short(L_got_cache); - } - return entry; } -- cgit v1.2.3