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6655646: dynamic languages need dynamically linked call sites

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Invokedynamic instruction (JSR 292 RI)

Reviewed-by: twisti, never
This commit is contained in:
John R Rose 2009-04-21 23:21:04 -07:00
parent fd05c28901
commit 34c1d72421
65 changed files with 1457 additions and 264 deletions
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3
hotspot/src/cpu/sparc/vm/templateInterpreter_sparc.cpp
View File

@ -150,7 +150,8 @@ address TemplateInterpreterGenerator::generate_StackOverflowError_handler() {
}
address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) {
address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, bool unbox) {
assert(!unbox, "NYI");//6815692//
address compiled_entry = __ pc();
Label cont;

18
hotspot/src/cpu/sparc/vm/templateTable_sparc.cpp
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@ -3125,6 +3125,24 @@ void TemplateTable::invokeinterface(int byte_no) {
}
void TemplateTable::invokedynamic(int byte_no) {
transition(vtos, vtos);
if (!EnableInvokeDynamic) {
// We should not encounter this bytecode if !EnableInvokeDynamic.
// The verifier will stop it. However, if we get past the verifier,
// this will stop the thread in a reasonable way, without crashing the JVM.
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
InterpreterRuntime::throw_IncompatibleClassChangeError));
// the call_VM checks for exception, so we should never return here.
__ should_not_reach_here();
return;
}
__ stop("invokedynamic NYI");//6815692//
}
//----------------------------------------------------------------------------------------------------
// Allocation

34
hotspot/src/cpu/x86/vm/interp_masm_x86_32.cpp
View File

@ -189,20 +189,33 @@ void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, i
}
void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset) {
void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, bool giant_index) {
assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
if (!giant_index) {
load_unsigned_short(reg, Address(rsi, bcp_offset));
} else {
assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic");
movl(reg, Address(rsi, bcp_offset));
assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line");
notl(reg); // convert to plain index
}
}
void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index,
int bcp_offset, bool giant_index) {
assert(cache != index, "must use different registers");
load_unsigned_short(index, Address(rsi, bcp_offset));
get_cache_index_at_bcp(index, bcp_offset, giant_index);
movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize));
assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index
}
void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset) {
assert(bcp_offset > 0, "bcp is still pointing to start of bytecode");
void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp,
int bcp_offset, bool giant_index) {
assert(cache != tmp, "must use different register");
load_unsigned_short(tmp, Address(rsi, bcp_offset));
get_cache_index_at_bcp(tmp, bcp_offset, giant_index);
assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below");
// convert from field index to ConstantPoolCacheEntry index
// and from word offset to byte offset
@ -1214,7 +1227,9 @@ void InterpreterMacroAssembler::profile_final_call(Register mdp) {
}
void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, Register reg2) {
void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp,
Register reg2,
bool receiver_can_be_null) {
if (ProfileInterpreter) {
Label profile_continue;
@ -1224,8 +1239,15 @@ void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register
// We are making a call. Increment the count.
increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset()));
Label skip_receiver_profile;
if (receiver_can_be_null) {
testptr(receiver, receiver);
jcc(Assembler::zero, skip_receiver_profile);
}
// Record the receiver type.
record_klass_in_profile(receiver, mdp, reg2);
bind(skip_receiver_profile);
// The method data pointer needs to be updated to reflect the new target.
update_mdp_by_constant(mdp,

8
hotspot/src/cpu/x86/vm/interp_masm_x86_32.hpp
View File

@ -76,8 +76,9 @@ class InterpreterMacroAssembler: public MacroAssembler {
void get_cpool_and_tags(Register cpool, Register tags) { get_constant_pool(cpool); movptr(tags, Address(cpool, constantPoolOopDesc::tags_offset_in_bytes()));
}
void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset);
void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset);
void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, bool giant_index = false);
void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, bool giant_index = false);
void get_cache_index_at_bcp(Register index, int bcp_offset, bool giant_index = false);
// Expression stack
void f2ieee(); // truncate ftos to 32bits
@ -226,7 +227,8 @@ class InterpreterMacroAssembler: public MacroAssembler {
void profile_not_taken_branch(Register mdp);
void profile_call(Register mdp);
void profile_final_call(Register mdp);
void profile_virtual_call(Register receiver, Register mdp, Register scratch2);
void profile_virtual_call(Register receiver, Register mdp, Register scratch2,
bool receiver_can_be_null = false);
void profile_ret(Register return_bci, Register mdp);
void profile_null_seen(Register mdp);
void profile_typecheck(Register mdp, Register klass, Register scratch);

110
hotspot/src/cpu/x86/vm/templateInterpreter_x86_32.cpp
View File

@ -156,13 +156,22 @@ address TemplateInterpreterGenerator::generate_continuation_for(TosState state)
}
address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step) {
address TemplateInterpreterGenerator::generate_return_entry_for(TosState state, int step, bool unbox) {
TosState incoming_state = state;
if (EnableInvokeDynamic) {
if (unbox) {
incoming_state = atos;
}
} else {
assert(!unbox, "old behavior");
}
Label interpreter_entry;
address compiled_entry = __ pc();
#ifdef COMPILER2
// The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases
if ((state == ftos && UseSSE < 1) || (state == dtos && UseSSE < 2)) {
if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) {
for (int i = 1; i < 8; i++) {
__ ffree(i);
}
@ -170,7 +179,7 @@ address TemplateInterpreterGenerator::generate_return_entry_for(TosState state,
__ empty_FPU_stack();
}
#endif
if ((state == ftos && UseSSE < 1) || (state == dtos && UseSSE < 2)) {
if ((incoming_state == ftos && UseSSE < 1) || (incoming_state == dtos && UseSSE < 2)) {
__ MacroAssembler::verify_FPU(1, "generate_return_entry_for compiled");
} else {
__ MacroAssembler::verify_FPU(0, "generate_return_entry_for compiled");
@ -186,12 +195,12 @@ address TemplateInterpreterGenerator::generate_return_entry_for(TosState state,
// In SSE mode, interpreter returns FP results in xmm0 but they need
// to end up back on the FPU so it can operate on them.
if (state == ftos && UseSSE >= 1) {
if (incoming_state == ftos && UseSSE >= 1) {
__ subptr(rsp, wordSize);
__ movflt(Address(rsp, 0), xmm0);
__ fld_s(Address(rsp, 0));
__ addptr(rsp, wordSize);
} else if (state == dtos && UseSSE >= 2) {
} else if (incoming_state == dtos && UseSSE >= 2) {
__ subptr(rsp, 2*wordSize);
__ movdbl(Address(rsp, 0), xmm0);
__ fld_d(Address(rsp, 0));
@ -207,13 +216,102 @@ address TemplateInterpreterGenerator::generate_return_entry_for(TosState state,
__ restore_bcp();
__ restore_locals();
__ get_cache_and_index_at_bcp(rbx, rcx, 1);
Label L_fail;
if (unbox && state != atos) {
// cast and unbox
BasicType type = as_BasicType(state);
if (type == T_BYTE) type = T_BOOLEAN; // FIXME
KlassHandle boxk = SystemDictionaryHandles::box_klass(type);
__ mov32(rbx, ExternalAddress((address) boxk.raw_value()));
__ testl(rax, rax);
Label L_got_value, L_get_value;
// convert nulls to zeroes (avoid NPEs here)
if (!(type == T_FLOAT || type == T_DOUBLE)) {
// if rax already contains zero bits, forge ahead
__ jcc(Assembler::zero, L_got_value);
} else {
__ jcc(Assembler::notZero, L_get_value);
__ fldz();
__ jmp(L_got_value);
}
__ bind(L_get_value);
__ cmp32(rbx, Address(rax, oopDesc::klass_offset_in_bytes()));
__ jcc(Assembler::notEqual, L_fail);
int offset = java_lang_boxing_object::value_offset_in_bytes(type);
// Cf. TemplateTable::getfield_or_static
switch (type) {
case T_BYTE: // fall through:
case T_BOOLEAN: __ load_signed_byte(rax, Address(rax, offset)); break;
case T_CHAR: __ load_unsigned_short(rax, Address(rax, offset)); break;
case T_SHORT: __ load_signed_short(rax, Address(rax, offset)); break;
case T_INT: __ movl(rax, Address(rax, offset)); break;
case T_FLOAT: __ fld_s(Address(rax, offset)); break;
case T_DOUBLE: __ fld_d(Address(rax, offset)); break;
// Access to java.lang.Double.value does not need to be atomic:
case T_LONG: { __ movl(rdx, Address(rax, offset + 4));
__ movl(rax, Address(rax, offset + 0)); } break;
default: ShouldNotReachHere();
}
__ bind(L_got_value);
}
Label L_got_cache, L_giant_index;
if (EnableInvokeDynamic) {
__ cmpb(Address(rsi, 0), Bytecodes::_invokedynamic);
__ jcc(Assembler::equal, L_giant_index);
}
__ get_cache_and_index_at_bcp(rbx, rcx, 1, false);
__ bind(L_got_cache);
if (unbox && state == atos) {
// insert a casting conversion, to keep verifier sane
Label L_ok, L_ok_pops;
__ testl(rax, rax);
__ jcc(Assembler::zero, L_ok);
__ push(rax); // save the object to check
__ push(rbx); // save CP cache reference
__ movl(rdx, Address(rax, oopDesc::klass_offset_in_bytes()));
__ movl(rbx, Address(rbx, rcx,
Address::times_4, constantPoolCacheOopDesc::base_offset() +
ConstantPoolCacheEntry::f1_offset()));
__ movl(rbx, Address(rbx, __ delayed_value(sun_dyn_CallSiteImpl::type_offset_in_bytes, rcx)));
__ movl(rbx, Address(rbx, __ delayed_value(java_dyn_MethodType::rtype_offset_in_bytes, rcx)));
__ movl(rax, Address(rbx, __ delayed_value(java_lang_Class::klass_offset_in_bytes, rcx)));
__ check_klass_subtype(rdx, rax, rbx, L_ok_pops);
__ pop(rcx); // pop and discard CP cache
__ mov(rbx, rax); // target supertype into rbx for L_fail
__ pop(rax); // failed object into rax for L_fail
__ jmp(L_fail);
__ bind(L_ok_pops);
// restore pushed temp regs:
__ pop(rbx);
__ pop(rax);
__ bind(L_ok);
}
__ movl(rbx, Address(rbx, rcx,
Address::times_ptr, constantPoolCacheOopDesc::base_offset() +
ConstantPoolCacheEntry::flags_offset()));
__ andptr(rbx, 0xFF);
__ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale()));
__ dispatch_next(state, step);
// out of the main line of code...
if (EnableInvokeDynamic) {
__ bind(L_giant_index);
__ get_cache_and_index_at_bcp(rbx, rcx, 1, true);
__ jmp(L_got_cache);
if (unbox) {
__ bind(L_fail);
__ push(rbx); // missed klass (required)
__ push(rax); // bad object (actual)
__ movptr(rdx, ExternalAddress((address) &Interpreter::_throw_WrongMethodType_entry));
__ call(rdx);
}
}
return entry;
}

3
hotspot/src/cpu/x86/vm/templateInterpreter_x86_64.cpp
View File

@ -166,7 +166,8 @@ address TemplateInterpreterGenerator::generate_continuation_for(TosState state)
address TemplateInterpreterGenerator::generate_return_entry_for(TosState state,
int step) {
int step, bool unbox) {
assert(!unbox, "NYI");//6815692//
// amd64 doesn't need to do anything special about compiled returns
// to the interpreter so the code that exists on x86 to place a sentinel

147
hotspot/src/cpu/x86/vm/templateTable_x86_32.cpp
View File

@ -206,12 +206,12 @@ void TemplateTable::patch_bytecode(Bytecodes::Code bytecode, Register bc,
__ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), scratch, rsi, bc);
#ifndef ASSERT
__ jmpb(patch_done);
__ bind(fast_patch);
}
#else
__ jmp(patch_done);
#endif
__ bind(fast_patch);
}
#ifdef ASSERT
Label okay;
__ load_unsigned_byte(scratch, at_bcp(0));
__ cmpl(scratch, (int)Bytecodes::java_code(bytecode));
@ -2105,6 +2105,7 @@ void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constrain
void TemplateTable::resolve_cache_and_index(int byte_no, Register Rcache, Register index) {
assert(byte_no == 1 || byte_no == 2, "byte_no out of range");
bool is_invokedynamic = (bytecode() == Bytecodes::_invokedynamic);
Register temp = rbx;
@ -2112,16 +2113,19 @@ void TemplateTable::resolve_cache_and_index(int byte_no, Register Rcache, Regist
const int shift_count = (1 + byte_no)*BitsPerByte;
Label resolved;
__ get_cache_and_index_at_bcp(Rcache, index, 1);
__ movl(temp, Address(Rcache,
index,
Address::times_ptr,
constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()));
__ shrl(temp, shift_count);
// have we resolved this bytecode?
__ andptr(temp, 0xFF);
__ cmpl(temp, (int)bytecode());
__ jcc(Assembler::equal, resolved);
__ get_cache_and_index_at_bcp(Rcache, index, 1, is_invokedynamic);
if (is_invokedynamic) {
// we are resolved if the f1 field contains a non-null CallSite object
__ cmpptr(Address(Rcache, index, Address::times_ptr, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::f1_offset()), (int32_t) NULL_WORD);
__ jcc(Assembler::notEqual, resolved);
} else {
__ movl(temp, Address(Rcache, index, Address::times_4, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset()));
__ shrl(temp, shift_count);
// have we resolved this bytecode?
__ andl(temp, 0xFF);
__ cmpl(temp, (int)bytecode());
__ jcc(Assembler::equal, resolved);
}
// resolve first time through
address entry;
@ -2134,12 +2138,13 @@ void TemplateTable::resolve_cache_and_index(int byte_no, Register Rcache, Regist
case Bytecodes::_invokespecial : // fall through
case Bytecodes::_invokestatic : // fall through
case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break;
case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break;
default : ShouldNotReachHere(); break;
}
__ movl(temp, (int)bytecode());
__ call_VM(noreg, entry, temp);
// Update registers with resolved info
__ get_cache_and_index_at_bcp(Rcache, index, 1);
__ get_cache_and_index_at_bcp(Rcache, index, 1, is_invokedynamic);
__ bind(resolved);
}
@ -2884,12 +2889,17 @@ void TemplateTable::count_calls(Register method, Register temp) {
}
void TemplateTable::prepare_invoke(Register method, Register index, int byte_no, Bytecodes::Code code) {
void TemplateTable::prepare_invoke(Register method, Register index, int byte_no) {
bool is_invdyn_bootstrap = (byte_no < 0);
if (is_invdyn_bootstrap) byte_no = -byte_no;
// determine flags
Bytecodes::Code code = bytecode();
const bool is_invokeinterface = code == Bytecodes::_invokeinterface;
const bool is_invokedynamic = code == Bytecodes::_invokedynamic;
const bool is_invokevirtual = code == Bytecodes::_invokevirtual;
const bool is_invokespecial = code == Bytecodes::_invokespecial;
const bool load_receiver = code != Bytecodes::_invokestatic;
const bool load_receiver = (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic);
const bool receiver_null_check = is_invokespecial;
const bool save_flags = is_invokeinterface || is_invokevirtual;
// setup registers & access constant pool cache
@ -2897,6 +2907,8 @@ void TemplateTable::prepare_invoke(Register method, Register index, int byte_no,
const Register flags = rdx;
assert_different_registers(method, index, recv, flags);
assert(!is_invdyn_bootstrap || is_invokedynamic, "byte_no<0 hack only for invdyn");
// save 'interpreter return address'
__ save_bcp();
@ -2907,8 +2919,13 @@ void TemplateTable::prepare_invoke(Register method, Register index, int byte_no,
__ movl(recv, flags);
__ andl(recv, 0xFF);
// recv count is 0 based?
__ movptr(recv, Address(rsp, recv, Interpreter::stackElementScale(), -Interpreter::expr_offset_in_bytes(1)));
__ verify_oop(recv);
Address recv_addr(rsp, recv, Interpreter::stackElementScale(), -Interpreter::expr_offset_in_bytes(1));
if (is_invokedynamic) {
__ lea(recv, recv_addr);
} else {
__ movptr(recv, recv_addr);
__ verify_oop(recv);
}
}
// do null check if needed
@ -2926,8 +2943,14 @@ void TemplateTable::prepare_invoke(Register method, Register index, int byte_no,
ConstantPoolCacheEntry::verify_tosBits();
// load return address
{
ExternalAddress table(is_invokeinterface ? (address)Interpreter::return_5_addrs_by_index_table() :
(address)Interpreter::return_3_addrs_by_index_table());
address table_addr;
if (is_invdyn_bootstrap)
table_addr = (address)Interpreter::return_5_unbox_addrs_by_index_table();
else if (is_invokeinterface || is_invokedynamic)
table_addr = (address)Interpreter::return_5_addrs_by_index_table();
else
table_addr = (address)Interpreter::return_3_addrs_by_index_table();
ExternalAddress table(table_addr);
__ movptr(flags, ArrayAddress(table, Address(noreg, flags, Address::times_ptr)));
}
@ -2990,7 +3013,7 @@ void TemplateTable::invokevirtual_helper(Register index, Register recv,
void TemplateTable::invokevirtual(int byte_no) {
transition(vtos, vtos);
prepare_invoke(rbx, noreg, byte_no, bytecode());
prepare_invoke(rbx, noreg, byte_no);
// rbx,: index
// rcx: receiver
@ -3002,7 +3025,7 @@ void TemplateTable::invokevirtual(int byte_no) {
void TemplateTable::invokespecial(int byte_no) {
transition(vtos, vtos);
prepare_invoke(rbx, noreg, byte_no, bytecode());
prepare_invoke(rbx, noreg, byte_no);
// do the call
__ verify_oop(rbx);
__ profile_call(rax);
@ -3012,7 +3035,7 @@ void TemplateTable::invokespecial(int byte_no) {
void TemplateTable::invokestatic(int byte_no) {
transition(vtos, vtos);
prepare_invoke(rbx, noreg, byte_no, bytecode());
prepare_invoke(rbx, noreg, byte_no);
// do the call
__ verify_oop(rbx);
__ profile_call(rax);
@ -3028,7 +3051,7 @@ void TemplateTable::fast_invokevfinal(int byte_no) {
void TemplateTable::invokeinterface(int byte_no) {
transition(vtos, vtos);
prepare_invoke(rax, rbx, byte_no, bytecode());
prepare_invoke(rax, rbx, byte_no);
// rax,: Interface
// rbx,: index
@ -3102,6 +3125,84 @@ void TemplateTable::invokeinterface(int byte_no) {
__ should_not_reach_here();
}
void TemplateTable::invokedynamic(int byte_no) {
transition(vtos, vtos);
if (!EnableInvokeDynamic) {
// We should not encounter this bytecode if !EnableInvokeDynamic.
// The verifier will stop it. However, if we get past the verifier,
// this will stop the thread in a reasonable way, without crashing the JVM.
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
InterpreterRuntime::throw_IncompatibleClassChangeError));
// the call_VM checks for exception, so we should never return here.
__ should_not_reach_here();
return;
}
prepare_invoke(rax, rbx, byte_no);
// rax: CallSite object (f1)
// rbx: unused (f2)
// rcx: receiver address
// rdx: flags (unused)
if (ProfileInterpreter) {
Label L;
// %%% should make a type profile for any invokedynamic that takes a ref argument
// profile this call
__ profile_call(rsi);
}
Label handle_unlinked_site;
__ movptr(rcx, Address(rax, __ delayed_value(sun_dyn_CallSiteImpl::target_offset_in_bytes, rcx)));
__ testptr(rcx, rcx);
__ jcc(Assembler::zero, handle_unlinked_site);
__ prepare_to_jump_from_interpreted();
__ jump_to_method_handle_entry(rcx, rdx);
// Initial calls come here...
__ bind(handle_unlinked_site);
__ pop(rcx); // remove return address pushed by prepare_invoke
// box stacked arguments into an array for the bootstrap method
address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::bootstrap_invokedynamic);
__ restore_bcp(); // rsi must be correct for call_VM
__ call_VM(rax, entry, rax);
__ movl(rdi, rax); // protect bootstrap MH from prepare_invoke
// recompute return address
__ restore_bcp(); // rsi must be correct for prepare_invoke
prepare_invoke(rax, rbx, -byte_no); // smashes rcx, rdx
// rax: CallSite object (f1)
// rbx: unused (f2)
// rdi: bootstrap MH
// rdx: flags
// now load up the arglist, which has been neatly boxed
__ get_thread(rcx);
__ movptr(rdx, Address(rcx, JavaThread::vm_result_2_offset()));
__ movptr(Address(rcx, JavaThread::vm_result_2_offset()), NULL_WORD);
__ verify_oop(rdx);
// rdx = arglist
// save SP now, before we add the bootstrap call to the stack
// We must preserve a fiction that the original arguments are outgoing,
// because the return sequence will reset the stack to this point
// and then pop all those arguments. It seems error-prone to use
// a different argument list size just for bootstrapping.
__ prepare_to_jump_from_interpreted();
// Now let's play adapter, pushing the real arguments on the stack.
__ pop(rbx); // return PC
__ push(rdi); // boot MH
__ push(rax); // call site
__ push(rdx); // arglist
__ push(rbx); // return PC, again
__ mov(rcx, rdi);
__ jump_to_method_handle_entry(rcx, rdx);
}
//----------------------------------------------------------------------------------------------------
// Allocation

3
hotspot/src/cpu/x86/vm/templateTable_x86_32.hpp
View File

@ -22,8 +22,7 @@
*
*/
static void prepare_invoke(Register method, Register index, int byte_no,
Bytecodes::Code code);
static void prepare_invoke(Register method, Register index, int byte_no);
static void invokevirtual_helper(Register index, Register recv,
Register flags);
static void volatile_barrier(Assembler::Membar_mask_bits order_constraint );

17
hotspot/src/cpu/x86/vm/templateTable_x86_64.cpp
View File

@ -3058,6 +3058,23 @@ void TemplateTable::invokeinterface(int byte_no) {
return;
}
void TemplateTable::invokedynamic(int byte_no) {
transition(vtos, vtos);
if (!EnableInvokeDynamic) {
// We should not encounter this bytecode if !EnableInvokeDynamic.
// The verifier will stop it. However, if we get past the verifier,
// this will stop the thread in a reasonable way, without crashing the JVM.
__ call_VM(noreg, CAST_FROM_FN_PTR(address,
InterpreterRuntime::throw_IncompatibleClassChangeError));
// the call_VM checks for exception, so we should never return here.
__ should_not_reach_here();
return;
}
__ stop("invokedynamic NYI");//6815692//
}
//-----------------------------------------------------------------------------
// Allocation

8
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
View File

@ -1524,6 +1524,11 @@ void GraphBuilder::invoke(Bytecodes::Code code) {
code = Bytecodes::_invokespecial;
}
if (code == Bytecodes::_invokedynamic) {
BAILOUT("invokedynamic NYI"); // FIXME
return;
}
// NEEDS_CLEANUP
// I've added the target-is_loaded() test below but I don't really understand
// how klass->is_loaded() can be true and yet target->is_loaded() is false.
@ -2431,8 +2436,8 @@ BlockEnd* GraphBuilder::iterate_bytecodes_for_block(int bci) {
case Bytecodes::_invokevirtual : // fall through
case Bytecodes::_invokespecial : // fall through
case Bytecodes::_invokestatic : // fall through
case Bytecodes::_invokedynamic : // fall through
case Bytecodes::_invokeinterface: invoke(code); break;
case Bytecodes::_xxxunusedxxx : ShouldNotReachHere(); break;
case Bytecodes::_new : new_instance(s.get_index_big()); break;
case Bytecodes::_newarray : new_type_array(); break;
case Bytecodes::_anewarray : new_object_array(); break;
@ -2571,6 +2576,7 @@ void GraphBuilder::initialize() {
, Bytecodes::_invokevirtual
, Bytecodes::_invokespecial
, Bytecodes::_invokestatic
, Bytecodes::_invokedynamic
, Bytecodes::_invokeinterface
, Bytecodes::_new
, Bytecodes::_newarray

4
hotspot/src/share/vm/ci/bcEscapeAnalyzer.cpp
View File

@ -833,6 +833,7 @@ void BCEscapeAnalyzer::iterate_one_block(ciBlock *blk, StateInfo &state, Growabl
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokeinterface:
{ bool will_link;
ciMethod* target = s.get_method(will_link);
@ -848,9 +849,6 @@ void BCEscapeAnalyzer::iterate_one_block(ciBlock *blk, StateInfo &state, Growabl
}
}
break;
case Bytecodes::_xxxunusedxxx:
ShouldNotReachHere();
break;
case Bytecodes::_new:
state.apush(allocated_obj);
break;

11
hotspot/src/share/vm/ci/ciStreams.cpp
View File

@ -301,17 +301,19 @@ int ciBytecodeStream::get_field_signature_index() {
// If this is a method invocation bytecode, get the constant pool
// index of the invoked method.
int ciBytecodeStream::get_method_index() {
#ifdef ASSERT
switch (cur_bc()) {
case Bytecodes::_invokeinterface:
return Bytes::get_Java_u2(_pc-4);
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
return get_index_big();
case Bytecodes::_invokedynamic:
break;
default:
ShouldNotReachHere();
return 0;
}
#endif
return get_index_int();
}
// ------------------------------------------------------------------
@ -337,6 +339,9 @@ ciMethod* ciBytecodeStream::get_method(bool& will_link) {
// for checking linkability when retrieving the associated method.
ciKlass* ciBytecodeStream::get_declared_method_holder() {
bool ignore;
// report as Dynamic for invokedynamic, which is syntactically classless
if (cur_bc() == Bytecodes::_invokedynamic)
return CURRENT_ENV->get_klass_by_name(_holder, ciSymbol::java_dyn_Dynamic(), false);
return CURRENT_ENV->get_klass_by_index(_holder, get_method_holder_index(), ignore);
}

50
hotspot/src/share/vm/ci/ciStreams.hpp
View File

@ -91,9 +91,10 @@ public:
_end = _start + max;
}
address cur_bcp() { return _bc_start; } // Returns bcp to current instruction
address cur_bcp() const { return _bc_start; } // Returns bcp to current instruction
int next_bci() const { return _pc -_start; }
int cur_bci() const { return _bc_start - _start; }
int instruction_size() const { return _pc - _bc_start; }
Bytecodes::Code cur_bc() const{ return check_java(_bc); }
Bytecodes::Code next_bc() { return Bytecodes::java_code((Bytecodes::Code)* _pc); }
@ -121,34 +122,39 @@ public:
return check_java(_bc);
}
bool is_wide() { return ( _pc == _was_wide ); }
bool is_wide() const { return ( _pc == _was_wide ); }
// Get a byte index following this bytecode.
// If prefixed with a wide bytecode, get a wide index.
int get_index() const {
assert_index_size(is_wide() ? 2 : 1);
return (_pc == _was_wide) // was widened?
? Bytes::get_Java_u2(_bc_start+2) // yes, return wide index
: _bc_start[1]; // no, return narrow index
}
// Set a byte index following this bytecode.
// If prefixed with a wide bytecode, get a wide index.
void put_index(int idx) {
if (_pc == _was_wide) // was widened?
Bytes::put_Java_u2(_bc_start+2,idx); // yes, set wide index
else
_bc_start[1]=idx; // no, set narrow index
// Get 2-byte index (getfield/putstatic/etc)
int get_index_big() const {
assert_index_size(2);
return Bytes::get_Java_u2(_bc_start+1);
}
// Get 2-byte index (getfield/putstatic/etc)
int get_index_big() const { return Bytes::get_Java_u2(_bc_start+1); }
// Get 2-byte index (or 4-byte, for invokedynamic)
int get_index_int() const {
return has_giant_index() ? get_index_giant() : get_index_big();
}
// Get 4-byte index, for invokedynamic.
int get_index_giant() const {
assert_index_size(4);
return Bytes::get_native_u4(_bc_start+1);
}
bool has_giant_index() const { return (cur_bc() == Bytecodes::_invokedynamic); }
// Get dimensions byte (multinewarray)
int get_dimensions() const { return *(unsigned char*)(_pc-1); }
// Get unsigned index fast
int get_index_fast() const { return Bytes::get_native_u2(_pc-2); }
// Sign-extended index byte/short, no widening
int get_byte() const { return (int8_t)(_pc[-1]); }
int get_short() const { return (int16_t)Bytes::get_Java_u2(_pc-2); }
@ -225,6 +231,22 @@ public:
ciKlass* get_declared_method_holder();
int get_method_holder_index();
int get_method_signature_index();
private:
void assert_index_size(int required_size) const {
#ifdef ASSERT
int isize = instruction_size() - (is_wide() ? 1 : 0) - 1;
if (isize == 2 && cur_bc() == Bytecodes::_iinc)
isize = 1;
else if (isize <= 2)
; // no change
else if (has_giant_index())
isize = 4;
else
isize = 2;
assert(isize = required_size, "wrong index size");
#endif
}
};

38
hotspot/src/share/vm/classfile/javaClasses.cpp
View File

@ -2430,6 +2430,41 @@ oop java_dyn_MethodTypeForm::erasedType(oop mtform) {
}
// Support for sun_dyn_CallSiteImpl
int sun_dyn_CallSiteImpl::_type_offset;
int sun_dyn_CallSiteImpl::_target_offset;
int sun_dyn_CallSiteImpl::_vmmethod_offset;
void sun_dyn_CallSiteImpl::compute_offsets() {
if (!EnableInvokeDynamic) return;
klassOop k = SystemDictionary::CallSiteImpl_klass();
if (k != NULL) {
compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true);
compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_dyn_MethodHandle_signature(), true);
compute_offset(_vmmethod_offset, k, vmSymbols::vmmethod_name(), vmSymbols::object_signature(), true);
}
}
oop sun_dyn_CallSiteImpl::type(oop site) {
return site->obj_field(_type_offset);
}
oop sun_dyn_CallSiteImpl::target(oop site) {
return site->obj_field(_target_offset);
}
void sun_dyn_CallSiteImpl::set_target(oop site, oop target) {
site->obj_field_put(_target_offset, target);
}
oop sun_dyn_CallSiteImpl::vmmethod(oop site) {
return site->obj_field(_vmmethod_offset);
}
void sun_dyn_CallSiteImpl::set_vmmethod(oop site, oop ref) {
site->obj_field_put(_vmmethod_offset, ref);
}
// Support for java_security_AccessControlContext
@ -2775,6 +2810,9 @@ void JavaClasses::compute_offsets() {
java_dyn_MethodType::compute_offsets();
java_dyn_MethodTypeForm::compute_offsets();
}
if (EnableInvokeDynamic) {
sun_dyn_CallSiteImpl::compute_offsets();
}
java_security_AccessControlContext::compute_offsets();
// Initialize reflection classes. The layouts of these classes
// changed with the new reflection implementation in JDK 1.4, and

27
hotspot/src/share/vm/classfile/javaClasses.hpp
View File

@ -1060,6 +1060,33 @@ class java_dyn_MethodTypeForm: AllStatic {
};
// Interface to sun.dyn.CallSiteImpl objects
class sun_dyn_CallSiteImpl: AllStatic {
friend class JavaClasses;
private:
static int _type_offset;
static int _target_offset;
static int _vmmethod_offset;
static void compute_offsets();
public:
// Accessors
static oop type(oop site);
static oop target(oop site);
static void set_target(oop site, oop target);
static oop vmmethod(oop site);
static void set_vmmethod(oop site, oop ref);
// Accessors for code generation:
static int target_offset_in_bytes() { return _target_offset; }
static int type_offset_in_bytes() { return _type_offset; }
static int vmmethod_offset_in_bytes() { return _vmmethod_offset; }
};
// Interface to java.security.AccessControlContext objects

80
hotspot/src/share/vm/classfile/systemDictionary.cpp
View File

@ -1951,6 +1951,16 @@ void SystemDictionary::initialize_preloaded_classes(TRAPS) {
// Skip the rest of the method handle classes, if MethodHandle is not loaded.
scan = WKID(meth_group_end+1);
}
WKID indy_group_start = WK_KLASS_ENUM_NAME(Linkage_klass);
WKID indy_group_end = WK_KLASS_ENUM_NAME(Dynamic_klass);
initialize_wk_klasses_until(indy_group_start, scan, CHECK);
if (EnableInvokeDynamic) {
initialize_wk_klasses_through(indy_group_start, scan, CHECK);
}
if (_well_known_klasses[indy_group_start] == NULL) {
// Skip the rest of the dynamic typing classes, if Linkage is not loaded.
scan = WKID(indy_group_end+1);
}
initialize_wk_klasses_until(WKID_LIMIT, scan, CHECK);
@ -2367,6 +2377,76 @@ Handle SystemDictionary::compute_method_handle_type(symbolHandle signature,
}
// Ask Java code to find or construct a java.dyn.CallSite for the given
// name and signature, as interpreted relative to the given class loader.
Handle SystemDictionary::make_dynamic_call_site(KlassHandle caller,
int caller_method_idnum,
int caller_bci,
symbolHandle name,
methodHandle mh_invdyn,
TRAPS) {
Handle empty;
// call sun.dyn.CallSiteImpl::makeSite(caller, name, mtype, cmid, cbci)
oop name_str_oop = StringTable::intern(name(), CHECK_(empty)); // not a handle!
JavaCallArguments args(Handle(THREAD, caller->java_mirror()));
args.push_oop(name_str_oop);
args.push_oop(mh_invdyn->method_handle_type());
args.push_int(caller_method_idnum);
args.push_int(caller_bci);
JavaValue result(T_OBJECT);
JavaCalls::call_static(&result,
SystemDictionary::CallSiteImpl_klass(),
vmSymbols::makeSite_name(), vmSymbols::makeSite_signature(),
&args, CHECK_(empty));
oop call_site_oop = (oop) result.get_jobject();
sun_dyn_CallSiteImpl::set_vmmethod(call_site_oop, mh_invdyn());
if (TraceMethodHandles) {
tty->print_cr("Linked invokedynamic bci=%d site="INTPTR_FORMAT":", caller_bci, call_site_oop);
call_site_oop->print();
tty->cr();
}
return call_site_oop;
}
Handle SystemDictionary::find_bootstrap_method(KlassHandle caller,
KlassHandle search_bootstrap_klass,
TRAPS) {
Handle empty;
if (!caller->oop_is_instance()) return empty;
instanceKlassHandle ik(THREAD, caller());
if (ik->bootstrap_method() != NULL) {
return Handle(THREAD, ik->bootstrap_method());
}
// call java.dyn.Linkage::findBootstrapMethod(caller, sbk)
JavaCallArguments args(Handle(THREAD, ik->java_mirror()));
if (search_bootstrap_klass.is_null())
args.push_oop(Handle());
else
args.push_oop(search_bootstrap_klass->java_mirror());
JavaValue result(T_OBJECT);
JavaCalls::call_static(&result,
SystemDictionary::Linkage_klass(),
vmSymbols::findBootstrapMethod_name(),
vmSymbols::findBootstrapMethod_signature(),
&args, CHECK_(empty));
oop boot_method_oop = (oop) result.get_jobject();
if (boot_method_oop != NULL) {
// probably no race conditions, but let's be careful:
if (Atomic::cmpxchg_ptr(boot_method_oop, ik->adr_bootstrap_method(), NULL) == NULL)
ik->set_bootstrap_method(boot_method_oop);
else
boot_method_oop = ik->bootstrap_method();
} else {
boot_method_oop = ik->bootstrap_method();
}
return Handle(THREAD, boot_method_oop);
}
// Since the identity hash code for symbols changes when the symbols are
// moved from the regular perm gen (hash in the mark word) to the shared
// spaces (hash is the address), the classes loaded into the dictionary

21
hotspot/src/share/vm/classfile/systemDictionary.hpp
View File

@ -142,6 +142,12 @@ class SymbolPropertyTable;
template(MethodType_klass, java_dyn_MethodType, Opt) \
template(MethodTypeForm_klass, java_dyn_MethodTypeForm, Opt) \
template(WrongMethodTypeException_klass, java_dyn_WrongMethodTypeException, Opt) \
template(Linkage_klass, java_dyn_Linkage, Opt) \
template(CallSite_klass, java_dyn_CallSite, Opt) \
template(CallSiteImpl_klass, sun_dyn_CallSiteImpl, Opt) \
template(Dynamic_klass, java_dyn_Dynamic, Opt) \
/* Note: MethodHandle must be first, and Dynamic last in group */ \
\
template(vector_klass, java_util_Vector, Pre) \
template(hashtable_klass, java_util_Hashtable, Pre) \
template(stringBuffer_klass, java_lang_StringBuffer, Pre) \
@ -466,6 +472,21 @@ public:
Handle class_loader,
Handle protection_domain,
TRAPS);
// ask Java to create a dynamic call site, while linking an invokedynamic op
static Handle make_dynamic_call_site(KlassHandle caller,
int caller_method_idnum,
int caller_bci,
symbolHandle name,
methodHandle mh_invoke,
TRAPS);
// coordinate with Java about bootstrap methods
static Handle find_bootstrap_method(KlassHandle caller,
// This argument is non-null only when a
// classfile attribute has been found:
KlassHandle search_bootstrap_klass,
TRAPS);
// Utility for printing loader "name" as part of tracing constraints
static const char* loader_name(oop loader) {
return ((loader) == NULL ? "<bootloader>" :

40
hotspot/src/share/vm/classfile/verifier.cpp
View File

@ -1174,6 +1174,7 @@ void ClassVerifier::verify_method(methodHandle m, TRAPS) {
&this_uninit, return_type, cp, CHECK_VERIFY(this));
no_control_flow = false; break;
case Bytecodes::_invokeinterface :
case Bytecodes::_invokedynamic :
verify_invoke_instructions(
&bcs, code_length, &current_frame,
&this_uninit, return_type, cp, CHECK_VERIFY(this));
@ -1895,12 +1896,23 @@ void ClassVerifier::verify_invoke_instructions(
Bytecodes::Code opcode = bcs->code();
unsigned int types = (opcode == Bytecodes::_invokeinterface
? 1 << JVM_CONSTANT_InterfaceMethodref
: opcode == Bytecodes::_invokedynamic
? 1 << JVM_CONSTANT_NameAndType
: 1 << JVM_CONSTANT_Methodref);
verify_cp_type(index, cp, types, CHECK_VERIFY(this));
// Get method name and signature
symbolHandle method_name(THREAD, cp->name_ref_at(index));
symbolHandle method_sig(THREAD, cp->signature_ref_at(index));
symbolHandle method_name;
symbolHandle method_sig;
if (opcode == Bytecodes::_invokedynamic) {
int name_index = cp->name_ref_index_at(index);
int sig_index = cp->signature_ref_index_at(index);
method_name = symbolHandle(THREAD, cp->symbol_at(name_index));
method_sig = symbolHandle(THREAD, cp->symbol_at(sig_index));
} else {
method_name = symbolHandle(THREAD, cp->name_ref_at(index));
method_sig = symbolHandle(THREAD, cp->signature_ref_at(index));
}
if (!SignatureVerifier::is_valid_method_signature(method_sig)) {
class_format_error(
@ -1910,8 +1922,17 @@ void ClassVerifier::verify_invoke_instructions(
}
// Get referenced class type
VerificationType ref_class_type = cp_ref_index_to_type(
index, cp, CHECK_VERIFY(this));
VerificationType ref_class_type;
if (opcode == Bytecodes::_invokedynamic) {
if (!EnableInvokeDynamic) {
class_format_error(
"invokedynamic instructions not enabled on this JVM",
_klass->external_name());
return;
}
} else {
ref_class_type = cp_ref_index_to_type(index, cp, CHECK_VERIFY(this));
}
// For a small signature length, we just allocate 128 bytes instead
// of parsing the signature once to find its size.
@ -1970,6 +1991,14 @@ void ClassVerifier::verify_invoke_instructions(
}
}
if (opcode == Bytecodes::_invokedynamic) {
address bcp = bcs->bcp();
if (*(bcp+3) != 0 || *(bcp+4) != 0) {
verify_error(bci, "Third and fourth operand bytes of invokedynamic must be zero");
return;
}
}
if (method_name->byte_at(0) == '<') {
// Make sure <init> can only be invoked by invokespecial
if (opcode != Bytecodes::_invokespecial ||
@ -1994,7 +2023,8 @@ void ClassVerifier::verify_invoke_instructions(
current_frame->pop_stack(sig_types[i], CHECK_VERIFY(this));
}
// Check objectref on operand stack
if (opcode != Bytecodes::_invokestatic) {
if (opcode != Bytecodes::_invokestatic &&
opcode != Bytecodes::_invokedynamic) {
if (method_name() == vmSymbols::object_initializer_name()) { // <init> method
verify_invoke_init(bcs, ref_class_type, current_frame,
code_length, this_uninit, cp, CHECK_VERIFY(this));

10
hotspot/src/share/vm/classfile/vmSymbols.hpp
View File

@ -217,6 +217,9 @@
template(base_name, "base") \
\
/* Support for JSR 292 & invokedynamic (JDK 1.7 and above) */ \
template(java_dyn_Dynamic, "java/dyn/Dynamic") \
template(java_dyn_Linkage, "java/dyn/Linkage") \
template(java_dyn_CallSite, "java/dyn/CallSite") \
template(java_dyn_MethodHandle, "java/dyn/MethodHandle") \
template(java_dyn_MethodType, "java/dyn/MethodType") \
template(java_dyn_WrongMethodTypeException, "java/dyn/WrongMethodTypeException") \
@ -230,8 +233,13 @@
template(sun_dyn_AdapterMethodHandle, "sun/dyn/AdapterMethodHandle") \
template(sun_dyn_BoundMethodHandle, "sun/dyn/BoundMethodHandle") \
template(sun_dyn_DirectMethodHandle, "sun/dyn/DirectMethodHandle") \
template(sun_dyn_CallSiteImpl, "sun/dyn/CallSiteImpl") \
template(makeImpl_name, "makeImpl") /*MethodType::makeImpl*/ \
template(makeImpl_signature, "(Ljava/lang/Class;[Ljava/lang/Class;ZZ)Ljava/dyn/MethodType;") \
template(makeSite_name, "makeSite") /*CallSiteImpl::makeImpl*/ \
template(makeSite_signature, "(Ljava/lang/Class;Ljava/lang/String;Ljava/dyn/MethodType;II)Ljava/dyn/CallSite;") \
template(findBootstrapMethod_name, "findBootstrapMethod") \
template(findBootstrapMethod_signature, "(Ljava/lang/Class;Ljava/lang/Class;)Ljava/dyn/MethodHandle;") \
NOT_LP64( do_alias(machine_word_signature, int_signature) ) \
LP64_ONLY( do_alias(machine_word_signature, long_signature) ) \
\
@ -308,9 +316,11 @@
template(bitCount_name, "bitCount") \
template(profile_name, "profile") \
template(equals_name, "equals") \
template(target_name, "target") \
template(toString_name, "toString") \
template(values_name, "values") \
template(receiver_name, "receiver") \
template(vmmethod_name, "vmmethod") \
template(vmtarget_name, "vmtarget") \
template(vmentry_name, "vmentry") \
template(vmslots_name, "vmslots") \

1
hotspot/src/share/vm/includeDB_core
View File

@ -4102,6 +4102,7 @@ templateTable.hpp interp_masm_<arch_model>.hpp
templateTable_<arch_model>.cpp interpreterRuntime.hpp
templateTable_<arch_model>.cpp interpreter.hpp
templateTable_<arch_model>.cpp methodDataOop.hpp
templateTable_<arch_model>.cpp methodHandles.hpp
templateTable_<arch_model>.cpp objArrayKlass.hpp
templateTable_<arch_model>.cpp oop.inline.hpp
templateTable_<arch_model>.cpp sharedRuntime.hpp

6
hotspot/src/share/vm/includeDB_gc_parallel
View File

@ -42,6 +42,12 @@ constantPoolKlass.cpp psPromotionManager.inline.hpp
constantPoolKlass.cpp psScavenge.inline.hpp
constantPoolKlass.cpp parOopClosures.inline.hpp
cpCacheKlass.cpp cardTableRS.hpp
cpCacheKlass.cpp oop.pcgc.inline.hpp
cpCacheKlass.cpp psPromotionManager.inline.hpp
cpCacheKlass.cpp psScavenge.inline.hpp
cpCacheKlass.cpp parOopClosures.inline.hpp
genCollectedHeap.cpp concurrentMarkSweepThread.hpp
genCollectedHeap.cpp vmCMSOperations.hpp

1
hotspot/src/share/vm/includeDB_jvmti
View File

@ -28,6 +28,7 @@ jvmtiClassFileReconstituter.cpp bytecodeStream.hpp
jvmtiClassFileReconstituter.cpp bytes_<arch>.hpp
jvmtiClassFileReconstituter.cpp jvmtiClassFileReconstituter.hpp
jvmtiClassFileReconstituter.cpp symbolTable.hpp
jvmtiClassFileReconstituter.cpp signature.hpp
jvmtiClassFileReconstituter.hpp jvmtiEnv.hpp

67
hotspot/src/share/vm/interpreter/abstractInterpreter.hpp
View File

@ -217,6 +217,73 @@ class AbstractInterpreter: AllStatic {
stackElementSize()) + tag_offset_in_bytes();
}
// access to stacked values according to type:
static oop* oop_addr_in_slot(intptr_t* slot_addr) {
return (oop*) slot_addr;
}
static jint* int_addr_in_slot(intptr_t* slot_addr) {
if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different())
// big-endian LP64
return (jint*)(slot_addr + 1) - 1;
else
return (jint*) slot_addr;
}
static jlong long_in_slot(intptr_t* slot_addr) {
if (sizeof(intptr_t) >= sizeof(jlong)) {
return *(jlong*) slot_addr;
} else if (!TaggedStackInterpreter) {
return Bytes::get_native_u8((address)slot_addr);
} else {
assert(sizeof(intptr_t) * 2 == sizeof(jlong), "ILP32");
// assemble the long in memory order (not arithmetic order)
union { jlong j; jint i[2]; } u;
u.i[0] = (jint) slot_addr[0*stackElementSize()];
u.i[1] = (jint) slot_addr[1*stackElementSize()];
return u.j;
}
}
static void set_long_in_slot(intptr_t* slot_addr, jlong value) {
if (sizeof(intptr_t) >= sizeof(jlong)) {
*(jlong*) slot_addr = value;
} else if (!TaggedStackInterpreter) {
Bytes::put_native_u8((address)slot_addr, value);
} else {
assert(sizeof(intptr_t) * 2 == sizeof(jlong), "ILP32");
// assemble the long in memory order (not arithmetic order)
union { jlong j; jint i[2]; } u;
u.j = value;
slot_addr[0*stackElementSize()] = (intptr_t) u.i[0];
slot_addr[1*stackElementSize()] = (intptr_t) u.i[1];
}
}
static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
switch (type) {
case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break;
case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break;
case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break;
case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break;
case T_INT: value->i = *int_addr_in_slot(slot_addr); break;
case T_LONG: value->j = long_in_slot(slot_addr); break;
case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break;
case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break;
case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break;
default: ShouldNotReachHere();
}
}
static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) {
switch (type) {
case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break;
case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break;
case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break;
case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break;
case T_INT: *int_addr_in_slot(slot_addr) = value->i; break;
case T_LONG: set_long_in_slot(slot_addr, value->j); break;
case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break;
case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break;
case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break;
default: ShouldNotReachHere();
}
}
};
//------------------------------------------------------------------------------------------------------------------------

13
hotspot/src/share/vm/interpreter/bytecode.cpp
View File

@ -34,12 +34,6 @@ void Bytecode::set_code(Bytecodes::Code code) {
}
void Bytecode::set_fast_index(int i) {
assert(0 <= i && i < 0x10000, "illegal index value");
Bytes::put_native_u2(addr_at(1), (jushort)i);
}
bool Bytecode::check_must_rewrite() const {
assert(Bytecodes::can_rewrite(code()), "post-check only");
@ -118,7 +112,12 @@ methodHandle Bytecode_invoke::static_target(TRAPS) {
int Bytecode_invoke::index() const {
return Bytes::get_Java_u2(bcp() + 1);
// Note: Rewriter::rewrite changes the Java_u2 of an invokedynamic to a native_u4,
// at the same time it allocates per-call-site CP cache entries.
if (has_giant_index())
return Bytes::get_native_u4(bcp() + 1);
else
return Bytes::get_Java_u2(bcp() + 1);
}

35
hotspot/src/share/vm/interpreter/bytecode.hpp
View File

@ -65,14 +65,6 @@ class ThisRelativeObj VALUE_OBJ_CLASS_SPEC {
// The base class for different kinds of bytecode abstractions.
// Provides the primitive operations to manipulate code relative
// to an objects 'this' pointer.
//
// Note: Even though it seems that the fast_index & set_fast_index
// functions are machine specific, they're not. They only use
// the natural way to store a 16bit index on a given machine,
// independent of the particular byte ordering. Since all other
// places in the system that refer to these indices use the
// same method (the natural byte ordering on the platform)
// this will always work and be machine-independent).
class Bytecode: public ThisRelativeObj {
protected:
@ -83,24 +75,40 @@ class Bytecode: public ThisRelativeObj {
// Attributes
address bcp() const { return addr_at(0); }
address next_bcp() const { return addr_at(0) + Bytecodes::length_at(bcp()); }
int instruction_size() const { return Bytecodes::length_at(bcp()); }
Bytecodes::Code code() const { return Bytecodes::code_at(addr_at(0)); }
Bytecodes::Code java_code() const { return Bytecodes::java_code(code()); }
bool must_rewrite() const { return Bytecodes::can_rewrite(code()) && check_must_rewrite(); }
bool is_active_breakpoint() const { return Bytecodes::is_active_breakpoint_at(bcp()); }
int one_byte_index() const { return byte_at(1); }
int two_byte_index() const { return (byte_at(1) << 8) + byte_at(2); }
int one_byte_index() const { assert_index_size(1); return byte_at(1); }
int two_byte_index() const { assert_index_size(2); return (byte_at(1) << 8) + byte_at(2); }
int offset() const { return (two_byte_index() << 16) >> 16; }
address destination() const { return bcp() + offset(); }
int fast_index() const { return Bytes::get_native_u2(addr_at(1)); }
// Attribute modification
void set_code(Bytecodes::Code code);
void set_fast_index(int i);
// Creation
inline friend Bytecode* Bytecode_at(address bcp);
private:
void assert_index_size(int required_size) const {
#ifdef ASSERT
int isize = instruction_size() - 1;
if (isize == 2 && code() == Bytecodes::_iinc)
isize = 1;
else if (isize <= 2)
; // no change
else if (code() == Bytecodes::_invokedynamic)
isize = 4;
else
isize = 2;
assert(isize = required_size, "wrong index size");
#endif
}
};
inline Bytecode* Bytecode_at(address bcp) {
@ -195,6 +203,9 @@ class Bytecode_invoke: public ResourceObj {
bool is_invokevirtual() const { return adjusted_invoke_code() == Bytecodes::_invokevirtual; }
bool is_invokestatic() const { return adjusted_invoke_code() == Bytecodes::_invokestatic; }
bool is_invokespecial() const { return adjusted_invoke_code() == Bytecodes::_invokespecial; }
bool is_invokedynamic() const { return adjusted_invoke_code() == Bytecodes::_invokedynamic; }
bool has_giant_index() const { return is_invokedynamic(); }
bool is_valid() const { return is_invokeinterface() ||
is_invokevirtual() ||

26
hotspot/src/share/vm/interpreter/bytecodeStream.hpp
View File

@ -109,6 +109,7 @@ class RawBytecodeStream: StackObj {
Bytecodes::Code code() const { return _code; }
bool is_wide() const { return _is_wide; }
int instruction_size() const { return (_next_bci - _bci); }
bool is_last_bytecode() const { return _next_bci >= _end_bci; }
address bcp() const { return method()->code_base() + _bci; }
@ -122,8 +123,29 @@ class RawBytecodeStream: StackObj {
int dest_w() const { return bci() + (int )Bytes::get_Java_u4(bcp() + 1); }
// Unsigned indices, widening
int get_index() const { return (is_wide()) ? Bytes::get_Java_u2(bcp() + 2) : bcp()[1]; }
int get_index_big() const { return (int)Bytes::get_Java_u2(bcp() + 1); }
int get_index() const { assert_index_size(is_wide() ? 2 : 1);
return (is_wide()) ? Bytes::get_Java_u2(bcp() + 2) : bcp()[1]; }
int get_index_big() const { assert_index_size(2);
return (int)Bytes::get_Java_u2(bcp() + 1); }
int get_index_int() const { return has_giant_index() ? get_index_giant() : get_index_big(); }
int get_index_giant() const { assert_index_size(4); return Bytes::get_native_u4(bcp() + 1); }
int has_giant_index() const { return (code() == Bytecodes::_invokedynamic); }
private:
void assert_index_size(int required_size) const {
#ifdef ASSERT
int isize = instruction_size() - (int)_is_wide - 1;
if (isize == 2 && code() == Bytecodes::_iinc)
isize = 1;
else if (isize <= 2)
; // no change
else if (has_giant_index())
isize = 4;
else
isize = 2;
assert(isize = required_size, "wrong index size");
#endif
}
};
// In BytecodeStream, non-java bytecodes will be translated into the

120
hotspot/src/share/vm/interpreter/bytecodeTracer.cpp
View File

@ -48,12 +48,15 @@ class BytecodePrinter: public BytecodeClosure {
int get_index() { return *(address)_next_pc++; }
int get_big_index() { int i=Bytes::get_Java_u2(_next_pc); _next_pc+=2; return i; }
int get_giant_index() { int i=Bytes::get_native_u4(_next_pc); _next_pc+=4; return i; }
int get_index_special() { return (is_wide()) ? get_big_index() : get_index(); }
methodOop method() { return _current_method; }
bool is_wide() { return _is_wide; }
bool check_index(int i, bool in_cp_cache, int& cp_index, outputStream* st = tty);
void print_constant(int i, outputStream* st = tty);
void print_field_or_method(int i, outputStream* st = tty);
void print_attributes(Bytecodes::Code code, int bci, outputStream* st = tty);
void bytecode_epilog(int bci, outputStream* st = tty);
@ -182,7 +185,71 @@ void print_oop(oop value, outputStream* st) {
}
}
bool BytecodePrinter::check_index(int i, bool in_cp_cache, int& cp_index, outputStream* st) {
constantPoolOop constants = method()->constants();
int ilimit = constants->length(), climit = 0;
constantPoolCacheOop cache = NULL;
if (in_cp_cache) {
cache = constants->cache();
if (cache != NULL) {
//climit = cache->length(); // %%% private!
size_t size = cache->size() * HeapWordSize;
size -= sizeof(constantPoolCacheOopDesc);
size /= sizeof(ConstantPoolCacheEntry);
climit = (int) size;
}
}
if (in_cp_cache && constantPoolCacheOopDesc::is_secondary_index(i)) {
i = constantPoolCacheOopDesc::decode_secondary_index(i);
st->print(" secondary cache[%d] of", i);
if (i >= 0 && i < climit) {
if (!cache->entry_at(i)->is_secondary_entry()) {
st->print_cr(" not secondary entry?", i);
return false;
}
i = cache->entry_at(i)->main_entry_index();
goto check_cache_index;
} else {
st->print_cr(" not in cache[*]?", i);
return false;
}
}
if (cache != NULL) {
i = Bytes::swap_u2(i);
if (WizardMode) st->print(" (swap=%d)", i);
goto check_cache_index;
}
check_cp_index:
if (i >= 0 && i < ilimit) {
if (WizardMode) st->print(" cp[%d]", i);
cp_index = i;
return true;
}
st->print_cr(" CP[%d] not in CP", i);
return false;
check_cache_index:
if (i >= 0 && i < climit) {
if (cache->entry_at(i)->is_secondary_entry()) {
st->print_cr(" secondary entry?");
return false;
}
i = cache->entry_at(i)->constant_pool_index();
goto check_cp_index;
}
st->print_cr(" not in CP[*]?", i);
return false;
}
void BytecodePrinter::print_constant(int i, outputStream* st) {
int orig_i = i;
if (!check_index(orig_i, false, i, st)) return;
constantPoolOop constants = method()->constants();
constantTag tag = constants->tag_at(i);
@ -203,13 +270,36 @@ void BytecodePrinter::print_constant(int i, outputStream* st) {
st->print_cr(" %s", constants->resolved_klass_at(i)->klass_part()->external_name());
} else if (tag.is_unresolved_klass()) {
st->print_cr(" <unresolved klass at %d>", i);
} else ShouldNotReachHere();
} else {
st->print_cr(" bad tag=%d at %d", tag.value(), i);
}
}
void BytecodePrinter::print_field_or_method(int i, outputStream* st) {
int orig_i = i;
if (!check_index(orig_i, true, i, st)) return;
constantPoolOop constants = method()->constants();
constantTag tag = constants->tag_at(i);
switch (tag.value()) {
case JVM_CONSTANT_InterfaceMethodref:
case JVM_CONSTANT_Methodref:
case JVM_CONSTANT_Fieldref:
break;
default:
st->print_cr(" bad tag=%d at %d", tag.value(), i);
return;
}
symbolOop name = constants->name_ref_at(orig_i);
symbolOop signature = constants->signature_ref_at(orig_i);
st->print_cr(" %d <%s> <%s> ", i, name->as_C_string(), signature->as_C_string());
}
void BytecodePrinter::print_attributes(Bytecodes::Code code, int bci, outputStream* st) {
// Show attributes of pre-rewritten codes
code = Bytecodes::java_code(code);
// If the code doesn't have any fields there's nothing to print.
// note this is ==1 because the tableswitch and lookupswitch are
// zero size (for some reason) and we want to print stuff out for them.
@ -354,36 +444,28 @@ void BytecodePrinter::print_attributes(Bytecodes::Code code, int bci, outputStre
case Bytecodes::_putstatic:
case Bytecodes::_getstatic:
case Bytecodes::_putfield:
case Bytecodes::_getfield: {
int i = get_big_index();
constantPoolOop constants = method()->constants();
symbolOop field = constants->name_ref_at(i);
st->print_cr(" %d <%s>", i, field->as_C_string());
}
case Bytecodes::_getfield:
print_field_or_method(get_big_index(), st);
break;
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
{ int i = get_big_index();
constantPoolOop constants = method()->constants();
symbolOop name = constants->name_ref_at(i);
symbolOop signature = constants->signature_ref_at(i);
st->print_cr(" %d <%s> <%s> ", i, name->as_C_string(), signature->as_C_string());
}
print_field_or_method(get_big_index(), st);
break;
case Bytecodes::_invokeinterface:
{ int i = get_big_index();
int n = get_index();
get_index();
constantPoolOop constants = method()->constants();
symbolOop name = constants->name_ref_at(i);
symbolOop signature = constants->signature_ref_at(i);
st->print_cr(" %d <%s> <%s> %d", i, name->as_C_string(), signature->as_C_string(), n);
get_index(); // ignore zero byte
print_field_or_method(i, st);
}
break;
case Bytecodes::_invokedynamic:
print_field_or_method(get_giant_index(), st);
break;
case Bytecodes::_new:
case Bytecodes::_checkcast:
case Bytecodes::_instanceof:

2
hotspot/src/share/vm/interpreter/bytecodes.cpp
View File

@ -357,7 +357,7 @@ void Bytecodes::initialize() {
def(_invokespecial , "invokespecial" , "bjj" , NULL , T_ILLEGAL, -1, true);
def(_invokestatic , "invokestatic" , "bjj" , NULL , T_ILLEGAL, 0, true);
def(_invokeinterface , "invokeinterface" , "bjj__", NULL , T_ILLEGAL, -1, true);
def(_xxxunusedxxx , "xxxunusedxxx" , NULL , NULL , T_VOID , 0, false);
def(_invokedynamic , "invokedynamic" , "bjjjj", NULL , T_ILLEGAL, -1, true );
def(_new , "new" , "bii" , NULL , T_OBJECT , 1, true );
def(_newarray , "newarray" , "bc" , NULL , T_OBJECT , 0, true );
def(_anewarray , "anewarray" , "bii" , NULL , T_OBJECT , 0, true );

2
hotspot/src/share/vm/interpreter/bytecodes.hpp
View File

@ -218,7 +218,7 @@ class Bytecodes: AllStatic {
_invokespecial = 183, // 0xb7
_invokestatic = 184, // 0xb8
_invokeinterface = 185, // 0xb9
_xxxunusedxxx = 186, // 0xba
_invokedynamic = 186, // 0xba // if EnableInvokeDynamic
_new = 187, // 0xbb
_newarray = 188, // 0xbc
_anewarray = 189, // 0xbd

127
hotspot/src/share/vm/interpreter/interpreterRuntime.cpp
View File

@ -681,6 +681,133 @@ IRT_ENTRY(void, InterpreterRuntime::resolve_invoke(JavaThread* thread, Bytecodes
IRT_END
// First time execution: Resolve symbols, create a permanent CallSiteImpl object.
IRT_ENTRY(void, InterpreterRuntime::resolve_invokedynamic(JavaThread* thread)) {
ResourceMark rm(thread);
assert(EnableInvokeDynamic, "");
const Bytecodes::Code bytecode = Bytecodes::_invokedynamic;
methodHandle caller_method(thread, method(thread));
// first determine if there is a bootstrap method
{
KlassHandle caller_klass(thread, caller_method->method_holder());
Handle bootm = SystemDictionary::find_bootstrap_method(caller_klass, KlassHandle(), CHECK);
if (bootm.is_null()) {
// If there is no bootstrap method, throw IncompatibleClassChangeError.
// This is a valid generic error type for resolution (JLS 12.3.3).
char buf[200];
jio_snprintf(buf, sizeof(buf), "Class %s has not declared a bootstrap method for invokedynamic",
(Klass::cast(caller_klass()))->external_name());
THROW_MSG(vmSymbols::java_lang_IncompatibleClassChangeError(), buf);
}
}
constantPoolHandle pool(thread, caller_method->constants());
pool->set_invokedynamic(); // mark header to flag active call sites
int raw_index = four_byte_index(thread);
assert(constantPoolCacheOopDesc::is_secondary_index(raw_index), "invokedynamic indexes marked specially");
// there are two CPC entries that are of interest:
int site_index = constantPoolCacheOopDesc::decode_secondary_index(raw_index);
int main_index = pool->cache()->entry_at(site_index)->main_entry_index();
// and there is one CP entry, a NameAndType:
int nt_index = pool->map_instruction_operand_to_index(raw_index);
// first resolve the signature to a MH.invoke methodOop
if (!pool->cache()->entry_at(main_index)->is_resolved(bytecode)) {
JvmtiHideSingleStepping jhss(thread);
CallInfo info;
LinkResolver::resolve_invoke(info, Handle(), pool,
raw_index, bytecode, CHECK);
// The main entry corresponds to a JVM_CONSTANT_NameAndType, and serves
// as a common reference point for all invokedynamic call sites with
// that exact call descriptor. We will link it in the CP cache exactly
// as if it were an invokevirtual of MethodHandle.invoke.
pool->cache()->entry_at(main_index)->set_method(
bytecode,
info.resolved_method(),
info.vtable_index());
assert(pool->cache()->entry_at(main_index)->is_vfinal(), "f2 must be a methodOop");
}
// The method (f2 entry) of the main entry is the MH.invoke for the
// invokedynamic target call signature.
intptr_t f2_value = pool->cache()->entry_at(main_index)->f2();
methodHandle mh_invdyn(THREAD, (methodOop) f2_value);
assert(mh_invdyn.not_null() && mh_invdyn->is_method() && mh_invdyn->is_method_handle_invoke(),
"correct result from LinkResolver::resolve_invokedynamic");
symbolHandle call_site_name(THREAD, pool->nt_name_ref_at(nt_index));
Handle call_site
= SystemDictionary::make_dynamic_call_site(caller_method->method_holder(),
caller_method->method_idnum(),
caller_method->bci_from(bcp(thread)),
call_site_name,
mh_invdyn,
CHECK);
// In the secondary entry, the f1 field is the call site, and the f2 (index)
// field is some data about the invoke site.
int extra_data = 0;
pool->cache()->entry_at(site_index)->set_dynamic_call(call_site(), extra_data);
}
IRT_END
// Called on first time execution, and also whenever the CallSite.target is null.
// FIXME: Do more of this in Java code.
IRT_ENTRY(void, InterpreterRuntime::bootstrap_invokedynamic(JavaThread* thread, oopDesc* call_site)) {
methodHandle mh_invdyn(thread, (methodOop) sun_dyn_CallSiteImpl::vmmethod(call_site));
Handle mh_type(thread, mh_invdyn->method_handle_type());
objArrayHandle mh_ptypes(thread, java_dyn_MethodType::ptypes(mh_type()));
// squish the arguments down to a single array
int nargs = mh_ptypes->length();
objArrayHandle arg_array;
{
objArrayOop aaoop = oopFactory::new_objArray(SystemDictionary::object_klass(), nargs, CHECK);
arg_array = objArrayHandle(thread, aaoop);
}
frame fr = thread->last_frame();
assert(fr.interpreter_frame_bcp() != NULL, "sanity");
int tos_offset = 0;
for (int i = nargs; --i >= 0; ) {
intptr_t* slot_addr = fr.interpreter_frame_tos_at(tos_offset++);
oop ptype = mh_ptypes->obj_at(i);
oop arg = NULL;
if (!java_lang_Class::is_primitive(ptype)) {
arg = *(oop*) slot_addr;
} else {
BasicType bt = java_lang_Class::primitive_type(ptype);
assert(frame::interpreter_frame_expression_stack_direction() < 0, "else reconsider this code");
jvalue value;
Interpreter::get_jvalue_in_slot(slot_addr, bt, &value);
tos_offset += type2size[bt]-1;
arg = java_lang_boxing_object::create(bt, &value, CHECK);
// FIXME: These boxing objects are not canonicalized under
// the Java autoboxing rules. They should be...
// The best approach would be to push the arglist creation into Java.
// The JVM should use a lower-level interface to communicate argument lists.
}
arg_array->obj_at_put(i, arg);
}
// now find the bootstrap method
oop bootstrap_mh_oop = instanceKlass::cast(fr.interpreter_frame_method()->method_holder())->bootstrap_method();
assert(bootstrap_mh_oop != NULL, "resolve_invokedynamic ensures a BSM");
// return the bootstrap method and argument array via vm_result/_2
thread->set_vm_result(bootstrap_mh_oop);
thread->set_vm_result_2(arg_array());
}
IRT_END
//------------------------------------------------------------------------------------------------------------------------
// Miscellaneous

9
hotspot/src/share/vm/interpreter/interpreterRuntime.hpp
View File

@ -42,8 +42,11 @@ class InterpreterRuntime: AllStatic {
static bool already_resolved(JavaThread *thread) { return cache_entry(thread)->is_resolved(code(thread)); }
static int one_byte_index(JavaThread *thread) { return bcp(thread)[1]; }
static int two_byte_index(JavaThread *thread) { return Bytes::get_Java_u2(bcp(thread) + 1); }
static int four_byte_index(JavaThread *thread) { return Bytes::get_native_u4(bcp(thread) + 1); }
static int number_of_dimensions(JavaThread *thread) { return bcp(thread)[3]; }
static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return method(thread)->constants()->cache()->entry_at(Bytes::get_native_u2(bcp(thread) + 1)); }
static ConstantPoolCacheEntry* cache_entry_at(JavaThread *thread, int i) { return method(thread)->constants()->cache()->entry_at(i); }
static ConstantPoolCacheEntry* cache_entry(JavaThread *thread) { return cache_entry_at(thread, Bytes::get_native_u2(bcp(thread) + 1)); }
static void note_trap(JavaThread *thread, int reason, TRAPS);
public:
@ -83,7 +86,9 @@ class InterpreterRuntime: AllStatic {
static void new_illegal_monitor_state_exception(JavaThread* thread);
// Calls
static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
static void resolve_invoke (JavaThread* thread, Bytecodes::Code bytecode);
static void resolve_invokedynamic(JavaThread* thread);
static void bootstrap_invokedynamic(JavaThread* thread, oopDesc* call_site);
// Breakpoints
static void _breakpoint(JavaThread* thread, methodOopDesc* method, address bcp);

25
hotspot/src/share/vm/interpreter/linkResolver.cpp
View File

@ -947,6 +947,7 @@ void LinkResolver::resolve_invoke(CallInfo& result, Handle recv, constantPoolHan
case Bytecodes::_invokestatic : resolve_invokestatic (result, pool, index, CHECK); break;
case Bytecodes::_invokespecial : resolve_invokespecial (result, pool, index, CHECK); break;
case Bytecodes::_invokevirtual : resolve_invokevirtual (result, recv, pool, index, CHECK); break;
case Bytecodes::_invokedynamic : resolve_invokedynamic (result, pool, index, CHECK); break;
case Bytecodes::_invokeinterface: resolve_invokeinterface(result, recv, pool, index, CHECK); break;
}
return;
@ -1008,6 +1009,30 @@ void LinkResolver::resolve_invokeinterface(CallInfo& result, Handle recv, consta
resolve_interface_call(result, recv, recvrKlass, resolved_klass, method_name, method_signature, current_klass, true, true, CHECK);
}
void LinkResolver::resolve_invokedynamic(CallInfo& result, constantPoolHandle pool, int raw_index, TRAPS) {
assert(EnableInvokeDynamic, "");
// This guy is reached from InterpreterRuntime::resolve_invokedynamic.
assert(constantPoolCacheOopDesc::is_secondary_index(raw_index), "must be secondary index");
int nt_index = pool->map_instruction_operand_to_index(raw_index);
// At this point, we only need the signature, and can ignore the name.
symbolHandle method_signature(THREAD, pool->nt_signature_ref_at(nt_index));
symbolHandle method_name = vmSymbolHandles::invoke_name();
KlassHandle resolved_klass = SystemDictionaryHandles::MethodHandle_klass();
// JSR 292: this must be an implicitly generated method MethodHandle.invoke(*...)
// The extra MH receiver will be inserted into the stack on every call.
methodHandle resolved_method;
lookup_implicit_method(resolved_method, resolved_klass, method_name, method_signature, CHECK);
if (resolved_method.is_null()) {
THROW(vmSymbols::java_lang_InternalError());
}
result.set_virtual(resolved_klass, KlassHandle(), resolved_method, resolved_method, resolved_method->vtable_index(), CHECK);
}
//------------------------------------------------------------------------------------------------------------------------
#ifndef PRODUCT

1
hotspot/src/share/vm/interpreter/linkResolver.hpp
View File

@ -167,6 +167,7 @@ class LinkResolver: AllStatic {
static void resolve_invokespecial (CallInfo& result, constantPoolHandle pool, int index, TRAPS);
static void resolve_invokevirtual (CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS);
static void resolve_invokeinterface(CallInfo& result, Handle recv, constantPoolHandle pool, int index, TRAPS);
static void resolve_invokedynamic (CallInfo& result, constantPoolHandle pool, int index, TRAPS);
static void resolve_invoke (CallInfo& result, Handle recv, constantPoolHandle pool, int index, Bytecodes::Code byte, TRAPS);
};

193
hotspot/src/share/vm/interpreter/rewriter.cpp
View File

@ -25,39 +25,50 @@
# include "incls/_precompiled.incl"
# include "incls/_rewriter.cpp.incl"
// Computes an index_map (new_index -> original_index) for contant pool entries
// Computes a CPC map (new_index -> original_index) for constant pool entries
// that are referred to by the interpreter at runtime via the constant pool cache.
void Rewriter::compute_index_maps(constantPoolHandle pool, intArray*& index_map, intStack*& inverse_index_map) {
const int length = pool->length();
index_map = new intArray(length, -1);
// Choose an initial value large enough that we don't get frequent
// calls to grow().
inverse_index_map = new intStack(length / 2);
// Also computes a CP map (original_index -> new_index).
// Marks entries in CP which require additional processing.
void Rewriter::compute_index_maps() {
const int length = _pool->length();
init_cp_map(length);
for (int i = 0; i < length; i++) {
switch (pool->tag_at(i).value()) {
int tag = _pool->tag_at(i).value();
switch (tag) {
case JVM_CONSTANT_InterfaceMethodref:
case JVM_CONSTANT_Fieldref : // fall through
case JVM_CONSTANT_Methodref : // fall through
case JVM_CONSTANT_InterfaceMethodref: {
index_map->at_put(i, inverse_index_map->length());
inverse_index_map->append(i);
}
add_cp_cache_entry(i);
break;
}
}
guarantee((int)_cp_cache_map.length()-1 <= (int)((u2)-1),
"all cp cache indexes fit in a u2");
}
// Creates a constant pool cache given an inverse_index_map
int Rewriter::add_extra_cp_cache_entry(int main_entry) {
// Hack: We put it on the map as an encoded value.
// The only place that consumes this is ConstantPoolCacheEntry::set_initial_state
int encoded = constantPoolCacheOopDesc::encode_secondary_index(main_entry);
int plain_secondary_index = _cp_cache_map.append(encoded);
return constantPoolCacheOopDesc::encode_secondary_index(plain_secondary_index);
}
// Creates a constant pool cache given a CPC map
// This creates the constant pool cache initially in a state
// that is unsafe for concurrent GC processing but sets it to
// a safe mode before the constant pool cache is returned.
constantPoolCacheHandle Rewriter::new_constant_pool_cache(intArray& inverse_index_map, TRAPS) {
const int length = inverse_index_map.length();
constantPoolCacheOop cache = oopFactory::new_constantPoolCache(length,
methodOopDesc::IsUnsafeConc,
CHECK_(constantPoolCacheHandle()));
cache->initialize(inverse_index_map);
return constantPoolCacheHandle(THREAD, cache);
void Rewriter::make_constant_pool_cache(TRAPS) {
const int length = _cp_cache_map.length();
constantPoolCacheOop cache =
oopFactory::new_constantPoolCache(length, methodOopDesc::IsUnsafeConc, CHECK);
cache->initialize(_cp_cache_map);
_pool->set_cache(cache);
cache->set_constant_pool(_pool());
}
@ -101,8 +112,38 @@ void Rewriter::rewrite_Object_init(methodHandle method, TRAPS) {
}
// Rewrite a classfile-order CP index into a native-order CPC index.
int Rewriter::rewrite_member_reference(address bcp, int offset) {
address p = bcp + offset;
int cp_index = Bytes::get_Java_u2(p);
int cache_index = cp_entry_to_cp_cache(cp_index);
Bytes::put_native_u2(p, cache_index);
return cp_index;
}
void Rewriter::rewrite_invokedynamic(address bcp, int offset, int delete_me) {
address p = bcp + offset;
assert(p[-1] == Bytecodes::_invokedynamic, "");
int cp_index = Bytes::get_Java_u2(p);
int cpc = maybe_add_cp_cache_entry(cp_index); // add lazily
int cpc2 = add_extra_cp_cache_entry(cpc);
// Replace the trailing four bytes with a CPC index for the dynamic
// call site. Unlike other CPC entries, there is one per bytecode,
// not just one per distinct CP entry. In other words, the
// CPC-to-CP relation is many-to-one for invokedynamic entries.
// This means we must use a larger index size than u2 to address
// all these entries. That is the main reason invokedynamic
// must have a five-byte instruction format. (Of course, other JVM
// implementations can use the bytes for other purposes.)
Bytes::put_native_u4(p, cpc2);
// Note: We use native_u4 format exclusively for 4-byte indexes.
}
// Rewrites a method given the index_map information
methodHandle Rewriter::rewrite_method(methodHandle method, intArray& index_map, TRAPS) {
void Rewriter::scan_method(methodOop method) {
int nof_jsrs = 0;
bool has_monitor_bytecodes = false;
@ -121,6 +162,7 @@ methodHandle Rewriter::rewrite_method(methodHandle method, intArray& index_map,
int bc_length;
for (int bci = 0; bci < code_length; bci += bc_length) {
address bcp = code_base + bci;
int prefix_length = 0;
c = (Bytecodes::Code)(*bcp);
// Since we have the code, see if we can get the length
@ -135,6 +177,7 @@ methodHandle Rewriter::rewrite_method(methodHandle method, intArray& index_map,
// by 'wide'. We don't currently examine any of the bytecodes
// modified by wide, but in case we do in the future...
if (c == Bytecodes::_wide) {
prefix_length = 1;
c = (Bytecodes::Code)bcp[1];
}
}
@ -159,12 +202,13 @@ methodHandle Rewriter::rewrite_method(methodHandle method, intArray& index_map,
case Bytecodes::_putfield : // fall through
case Bytecodes::_invokevirtual : // fall through
case Bytecodes::_invokespecial : // fall through
case Bytecodes::_invokestatic : // fall through
case Bytecodes::_invokeinterface: {
address p = bcp + 1;
Bytes::put_native_u2(p, index_map[Bytes::get_Java_u2(p)]);
case Bytecodes::_invokestatic :
case Bytecodes::_invokeinterface:
rewrite_member_reference(bcp, prefix_length+1);
break;
case Bytecodes::_invokedynamic:
rewrite_invokedynamic(bcp, prefix_length+1, int(sizeof"@@@@DELETE ME"));
break;
}
case Bytecodes::_jsr : // fall through
case Bytecodes::_jsr_w : nof_jsrs++; break;
case Bytecodes::_monitorenter : // fall through
@ -182,53 +226,56 @@ methodHandle Rewriter::rewrite_method(methodHandle method, intArray& index_map,
// have to be rewritten, so we run the oopMapGenerator on the method
if (nof_jsrs > 0) {
method->set_has_jsrs();
ResolveOopMapConflicts romc(method);
methodHandle original_method = method;
method = romc.do_potential_rewrite(CHECK_(methodHandle()));
if (method() != original_method()) {
// Insert invalid bytecode into original methodOop and set
// interpreter entrypoint, so that a executing this method
// will manifest itself in an easy recognizable form.
address bcp = original_method->bcp_from(0);
*bcp = (u1)Bytecodes::_shouldnotreachhere;
int kind = Interpreter::method_kind(original_method);
original_method->set_interpreter_kind(kind);
}
// Second pass will revisit this method.
assert(method->has_jsrs(), "");
}
}
// Update monitor matching info.
if (romc.monitor_safe()) {
method->set_guaranteed_monitor_matching();
}
// After constant pool is created, revisit methods containing jsrs.
methodHandle Rewriter::rewrite_jsrs(methodHandle method, TRAPS) {
ResolveOopMapConflicts romc(method);
methodHandle original_method = method;
method = romc.do_potential_rewrite(CHECK_(methodHandle()));
if (method() != original_method()) {
// Insert invalid bytecode into original methodOop and set
// interpreter entrypoint, so that a executing this method
// will manifest itself in an easy recognizable form.
address bcp = original_method->bcp_from(0);
*bcp = (u1)Bytecodes::_shouldnotreachhere;
int kind = Interpreter::method_kind(original_method);
original_method->set_interpreter_kind(kind);
}
// Setup method entrypoints for compiler and interpreter
method->link_method(method, CHECK_(methodHandle()));
// Update monitor matching info.
if (romc.monitor_safe()) {
method->set_guaranteed_monitor_matching();
}
return method;
}
void Rewriter::rewrite(instanceKlassHandle klass, TRAPS) {
// gather starting points
ResourceMark rm(THREAD);
constantPoolHandle pool (THREAD, klass->constants());
objArrayHandle methods (THREAD, klass->methods());
assert(pool->cache() == NULL, "constant pool cache must not be set yet");
Rewriter rw(klass, CHECK);
// (That's all, folks.)
}
Rewriter::Rewriter(instanceKlassHandle klass, TRAPS)
: _klass(klass),
// gather starting points
_pool( THREAD, klass->constants()),
_methods(THREAD, klass->methods())
{
assert(_pool->cache() == NULL, "constant pool cache must not be set yet");
// determine index maps for methodOop rewriting
intArray* index_map = NULL;
intStack* inverse_index_map = NULL;
compute_index_maps(pool, index_map, inverse_index_map);
compute_index_maps();
// allocate constant pool cache
constantPoolCacheHandle cache = new_constant_pool_cache(*inverse_index_map, CHECK);
pool->set_cache(cache());
cache->set_constant_pool(pool());
if (RegisterFinalizersAtInit && klass->name() == vmSymbols::java_lang_Object()) {
int i = methods->length();
if (RegisterFinalizersAtInit && _klass->name() == vmSymbols::java_lang_Object()) {
int i = _methods->length();
while (i-- > 0) {
methodOop method = (methodOop)methods->obj_at(i);
methodOop method = (methodOop)_methods->obj_at(i);
if (method->intrinsic_id() == vmIntrinsics::_Object_init) {
// rewrite the return bytecodes of Object.<init> to register the
// object for finalization if needed.
@ -239,13 +286,27 @@ void Rewriter::rewrite(instanceKlassHandle klass, TRAPS) {
}
}
// rewrite methods
{ int i = methods->length();
while (i-- > 0) {
methodHandle m(THREAD, (methodOop)methods->obj_at(i));
m = rewrite_method(m, *index_map, CHECK);
// rewrite methods, in two passes
int i, len = _methods->length();
for (i = len; --i >= 0; ) {
methodOop method = (methodOop)_methods->obj_at(i);
scan_method(method);
}
// allocate constant pool cache, now that we've seen all the bytecodes
make_constant_pool_cache(CHECK);
for (i = len; --i >= 0; ) {
methodHandle m(THREAD, (methodOop)_methods->obj_at(i));
if (m->has_jsrs()) {
m = rewrite_jsrs(m, CHECK);
// Method might have gotten rewritten.
methods->obj_at_put(i, m());
_methods->obj_at_put(i, m());
}
// Set up method entry points for compiler and interpreter.
m->link_method(m, CHECK);
}
}

41
hotspot/src/share/vm/interpreter/rewriter.hpp
View File

@ -25,13 +25,44 @@
// The Rewriter adds caches to the constant pool and rewrites bytecode indices
// pointing into the constant pool for better interpreter performance.
class Rewriter: public AllStatic {
class Rewriter: public StackObj {
private:
static void compute_index_maps(constantPoolHandle pool, intArray*& index_map, intStack*& inverse_index_map);
static constantPoolCacheHandle new_constant_pool_cache(intArray& inverse_index_map, TRAPS);
static methodHandle rewrite_method(methodHandle method, intArray& index_map, TRAPS);
static void rewrite_Object_init(methodHandle method, TRAPS);
instanceKlassHandle _klass;
constantPoolHandle _pool;
objArrayHandle _methods;
intArray _cp_map;
intStack _cp_cache_map;
void init_cp_map(int length) {
_cp_map.initialize(length, -1);
// Choose an initial value large enough that we don't get frequent
// calls to grow().
_cp_cache_map.initialize(length / 2);
}
int cp_entry_to_cp_cache(int i) { assert(has_cp_cache(i), "oob"); return _cp_map[i]; }
bool has_cp_cache(int i) { return (uint)i < (uint)_cp_map.length() && _cp_map[i] >= 0; }
int maybe_add_cp_cache_entry(int i) { return has_cp_cache(i) ? _cp_map[i] : add_cp_cache_entry(i); }
int add_cp_cache_entry(int cp_index) {
assert(_cp_map[cp_index] == -1, "not twice on same cp_index");
int cache_index = _cp_cache_map.append(cp_index);
_cp_map.at_put(cp_index, cache_index);
assert(cp_entry_to_cp_cache(cp_index) == cache_index, "");
return cache_index;
}
int add_extra_cp_cache_entry(int main_entry);
// All the work goes in here:
Rewriter(instanceKlassHandle klass, TRAPS);
void compute_index_maps();
void make_constant_pool_cache(TRAPS);
void scan_method(methodOop m);
methodHandle rewrite_jsrs(methodHandle m, TRAPS);
void rewrite_Object_init(methodHandle m, TRAPS);
int rewrite_member_reference(address bcp, int offset);
void rewrite_invokedynamic(address bcp, int offset, int cp_index);
public:
// Driver routine:
static void rewrite(instanceKlassHandle klass, TRAPS);
};

37
hotspot/src/share/vm/interpreter/templateInterpreter.cpp
View File

@ -178,12 +178,14 @@ EntryPoint TemplateInterpreter::_trace_code;
#endif // !PRODUCT
EntryPoint TemplateInterpreter::_return_entry[TemplateInterpreter::number_of_return_entries];
EntryPoint TemplateInterpreter::_earlyret_entry;
EntryPoint TemplateInterpreter::_return_unbox_entry;
EntryPoint TemplateInterpreter::_deopt_entry [TemplateInterpreter::number_of_deopt_entries ];
EntryPoint TemplateInterpreter::_continuation_entry;
EntryPoint TemplateInterpreter::_safept_entry;
address TemplateInterpreter::_return_3_addrs_by_index[TemplateInterpreter::number_of_return_addrs];
address TemplateInterpreter::_return_5_addrs_by_index[TemplateInterpreter::number_of_return_addrs];
address TemplateInterpreter::_return_5_unbox_addrs_by_index[TemplateInterpreter::number_of_return_addrs];
DispatchTable TemplateInterpreter::_active_table;
DispatchTable TemplateInterpreter::_normal_table;
@ -251,6 +253,22 @@ void TemplateInterpreterGenerator::generate_all() {
}
}
if (EnableInvokeDynamic) {
CodeletMark cm(_masm, "unboxing return entry points");
Interpreter::_return_unbox_entry =
EntryPoint(
generate_return_unbox_entry_for(btos, 5),
generate_return_unbox_entry_for(ctos, 5),
generate_return_unbox_entry_for(stos, 5),
generate_return_unbox_entry_for(atos, 5), // cast conversion
generate_return_unbox_entry_for(itos, 5),
generate_return_unbox_entry_for(ltos, 5),
generate_return_unbox_entry_for(ftos, 5),
generate_return_unbox_entry_for(dtos, 5),
Interpreter::_return_entry[5].entry(vtos) // no unboxing for void
);
}
{ CodeletMark cm(_masm, "earlyret entry points");
Interpreter::_earlyret_entry =
EntryPoint(
@ -298,8 +316,11 @@ void TemplateInterpreterGenerator::generate_all() {
for (int j = 0; j < number_of_states; j++) {
const TosState states[] = {btos, ctos, stos, itos, ltos, ftos, dtos, atos, vtos};
Interpreter::_return_3_addrs_by_index[Interpreter::TosState_as_index(states[j])] = Interpreter::return_entry(states[j], 3);
Interpreter::_return_5_addrs_by_index[Interpreter::TosState_as_index(states[j])] = Interpreter::return_entry(states[j], 5);
int index = Interpreter::TosState_as_index(states[j]);
Interpreter::_return_3_addrs_by_index[index] = Interpreter::return_entry(states[j], 3);
Interpreter::_return_5_addrs_by_index[index] = Interpreter::return_entry(states[j], 5);
if (EnableInvokeDynamic)
Interpreter::_return_5_unbox_addrs_by_index[index] = Interpreter::return_unbox_entry(states[j], 5);
}
{ CodeletMark cm(_masm, "continuation entry points");
@ -526,6 +547,18 @@ address TemplateInterpreter::return_entry(TosState state, int length) {
}
address TemplateInterpreter::return_unbox_entry(TosState state, int length) {
assert(EnableInvokeDynamic, "");
if (state == vtos) {
// no unboxing to do, actually
return return_entry(state, length);
} else {
assert(length == 5, "unboxing entries generated for invokedynamic only");
return _return_unbox_entry.entry(state);
}
}
address TemplateInterpreter::deopt_entry(TosState state, int length) {
guarantee(0 <= length && length < Interpreter::number_of_deopt_entries, "illegal length");
return _deopt_entry[length].entry(state);

10
hotspot/src/share/vm/interpreter/templateInterpreter.hpp
View File

@ -83,9 +83,9 @@ class TemplateInterpreter: public AbstractInterpreter {
public:
enum MoreConstants {
number_of_return_entries = 9, // number of return entry points
number_of_deopt_entries = 9, // number of deoptimization entry points
number_of_return_addrs = 9 // number of return addresses
number_of_return_entries = number_of_states, // number of return entry points
number_of_deopt_entries = number_of_states, // number of deoptimization entry points
number_of_return_addrs = number_of_states // number of return addresses
};
protected:
@ -110,12 +110,14 @@ class TemplateInterpreter: public AbstractInterpreter {
#endif // !PRODUCT
static EntryPoint _return_entry[number_of_return_entries]; // entry points to return to from a call
static EntryPoint _earlyret_entry; // entry point to return early from a call
static EntryPoint _return_unbox_entry; // entry point to unbox a return value from a call
static EntryPoint _deopt_entry[number_of_deopt_entries]; // entry points to return to from a deoptimization
static EntryPoint _continuation_entry;
static EntryPoint _safept_entry;
static address _return_3_addrs_by_index[number_of_return_addrs]; // for invokevirtual return entries
static address _return_5_addrs_by_index[number_of_return_addrs]; // for invokeinterface return entries
static address _return_5_unbox_addrs_by_index[number_of_return_addrs]; // for invokedynamic bootstrap methods
static DispatchTable _active_table; // the active dispatch table (used by the interpreter for dispatch)
static DispatchTable _normal_table; // the normal dispatch table (used to set the active table in normal mode)
@ -157,10 +159,12 @@ class TemplateInterpreter: public AbstractInterpreter {
// Support for invokes
static address* return_3_addrs_by_index_table() { return _return_3_addrs_by_index; }
static address* return_5_addrs_by_index_table() { return _return_5_addrs_by_index; }
static address* return_5_unbox_addrs_by_index_table() { return _return_5_unbox_addrs_by_index; }
static int TosState_as_index(TosState state); // computes index into return_3_entry_by_index table
static address return_entry (TosState state, int length);
static address deopt_entry (TosState state, int length);
static address return_unbox_entry(TosState state, int length);
// Safepoint support
static void notice_safepoints(); // stops the thread when reaching a safepoint

5
hotspot/src/share/vm/interpreter/templateInterpreterGenerator.hpp
View File

@ -51,7 +51,10 @@ class TemplateInterpreterGenerator: public AbstractInterpreterGenerator {
address generate_WrongMethodType_handler();
address generate_ArrayIndexOutOfBounds_handler(const char* name);
address generate_continuation_for(TosState state);
address generate_return_entry_for(TosState state, int step);
address generate_return_entry_for(TosState state, int step, bool unbox = false);
address generate_return_unbox_entry_for(TosState state, int step) {
return generate_return_entry_for(state, step, true);
}
address generate_earlyret_entry_for(TosState state);
address generate_deopt_entry_for(TosState state, int step);
address generate_safept_entry_for(TosState state, address runtime_entry);

2
hotspot/src/share/vm/interpreter/templateTable.cpp
View File

@ -442,6 +442,7 @@ void TemplateTable::initialize() {
def(Bytecodes::_invokespecial , ubcp|disp|clvm|____, vtos, vtos, invokespecial , 1 );
def(Bytecodes::_invokestatic , ubcp|disp|clvm|____, vtos, vtos, invokestatic , 1 );
def(Bytecodes::_invokeinterface , ubcp|disp|clvm|____, vtos, vtos, invokeinterface , 1 );
def(Bytecodes::_invokedynamic , ubcp|disp|clvm|____, vtos, vtos, invokedynamic , 1 );
def(Bytecodes::_new , ubcp|____|clvm|____, vtos, atos, _new , _ );
def(Bytecodes::_newarray , ubcp|____|clvm|____, itos, atos, newarray , _ );
def(Bytecodes::_anewarray , ubcp|____|clvm|____, itos, atos, anewarray , _ );
@ -503,7 +504,6 @@ void TemplateTable::initialize() {
def(Bytecodes::_fast_invokevfinal , ubcp|disp|clvm|____, vtos, vtos, fast_invokevfinal , 2 );
def(Bytecodes::_fast_linearswitch , ubcp|disp|____|____, itos, vtos, fast_linearswitch , _ );
def(Bytecodes::_fast_binaryswitch , ubcp|disp|____|____, itos, vtos, fast_binaryswitch , _ );

1
hotspot/src/share/vm/interpreter/templateTable.hpp
View File

@ -261,6 +261,7 @@ class TemplateTable: AllStatic {
static void invokespecial(int byte_no);
static void invokestatic(int byte_no);
static void invokeinterface(int byte_no);
static void invokedynamic(int byte_no);
static void fast_invokevfinal(int byte_no);
static void getfield_or_static(int byte_no, bool is_static);

1
hotspot/src/share/vm/oops/constantPoolKlass.cpp
View File

@ -312,6 +312,7 @@ void constantPoolKlass::oop_print_on(oop obj, outputStream* st) {
if (cp->flags() != 0) {
st->print(" - flags : 0x%x", cp->flags());
if (cp->has_pseudo_string()) st->print(" has_pseudo_string");
if (cp->has_invokedynamic()) st->print(" has_invokedynamic");
st->cr();
}

63
hotspot/src/share/vm/oops/constantPoolOop.cpp
View File

@ -249,32 +249,41 @@ klassOop constantPoolOopDesc::klass_ref_at_if_loaded_check(constantPoolHandle th
}
symbolOop constantPoolOopDesc::uncached_name_ref_at(int which) {
jint ref_index = name_and_type_at(uncached_name_and_type_ref_index_at(which));
int name_index = extract_low_short_from_int(ref_index);
symbolOop constantPoolOopDesc::impl_name_ref_at(int which, bool uncached) {
int name_index = name_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
return symbol_at(name_index);
}
symbolOop constantPoolOopDesc::uncached_signature_ref_at(int which) {
jint ref_index = name_and_type_at(uncached_name_and_type_ref_index_at(which));
int signature_index = extract_high_short_from_int(ref_index);
symbolOop constantPoolOopDesc::impl_signature_ref_at(int which, bool uncached) {
int signature_index = signature_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
return symbol_at(signature_index);
}
int constantPoolOopDesc::uncached_name_and_type_ref_index_at(int which) {
jint ref_index = field_or_method_at(which, true);
int constantPoolOopDesc::impl_name_and_type_ref_index_at(int which, bool uncached) {
jint ref_index = field_or_method_at(which, uncached);
return extract_high_short_from_int(ref_index);
}
int constantPoolOopDesc::uncached_klass_ref_index_at(int which) {
jint ref_index = field_or_method_at(which, true);
int constantPoolOopDesc::impl_klass_ref_index_at(int which, bool uncached) {
jint ref_index = field_or_method_at(which, uncached);
return extract_low_short_from_int(ref_index);
}
int constantPoolOopDesc::map_instruction_operand_to_index(int operand) {
if (constantPoolCacheOopDesc::is_secondary_index(operand)) {
return cache()->main_entry_at(operand)->constant_pool_index();
}
assert((int)(u2)operand == operand, "clean u2");
int index = Bytes::swap_u2(operand);
return cache()->entry_at(index)->constant_pool_index();
}
void constantPoolOopDesc::verify_constant_pool_resolve(constantPoolHandle this_oop, KlassHandle k, TRAPS) {
if (k->oop_is_instance() || k->oop_is_objArray()) {
instanceKlassHandle holder (THREAD, this_oop->pool_holder());
@ -290,26 +299,14 @@ void constantPoolOopDesc::verify_constant_pool_resolve(constantPoolHandle this_o
}
int constantPoolOopDesc::klass_ref_index_at(int which) {
jint ref_index = field_or_method_at(which, false);
int constantPoolOopDesc::name_ref_index_at(int which_nt) {
jint ref_index = name_and_type_at(which_nt);
return extract_low_short_from_int(ref_index);
}
int constantPoolOopDesc::name_and_type_ref_index_at(int which) {
jint ref_index = field_or_method_at(which, false);
return extract_high_short_from_int(ref_index);
}
int constantPoolOopDesc::name_ref_index_at(int which) {
jint ref_index = name_and_type_at(which);
return extract_low_short_from_int(ref_index);
}
int constantPoolOopDesc::signature_ref_index_at(int which) {
jint ref_index = name_and_type_at(which);
int constantPoolOopDesc::signature_ref_index_at(int which_nt) {
jint ref_index = name_and_type_at(which_nt);
return extract_high_short_from_int(ref_index);
}
@ -353,20 +350,6 @@ char* constantPoolOopDesc::string_at_noresolve(int which) {
}
symbolOop constantPoolOopDesc::name_ref_at(int which) {
jint ref_index = name_and_type_at(name_and_type_ref_index_at(which));
int name_index = extract_low_short_from_int(ref_index);
return symbol_at(name_index);
}
symbolOop constantPoolOopDesc::signature_ref_at(int which) {
jint ref_index = name_and_type_at(name_and_type_ref_index_at(which));
int signature_index = extract_high_short_from_int(ref_index);
return symbol_at(signature_index);
}
BasicType constantPoolOopDesc::basic_type_for_signature_at(int which) {
return FieldType::basic_type(symbol_at(which));
}

48
hotspot/src/share/vm/oops/constantPoolOop.hpp
View File

@ -53,6 +53,7 @@ class constantPoolOopDesc : public oopDesc {
void release_tag_at_put(int which, jbyte t) { tags()->release_byte_at_put(which, t); }
enum FlagBit {
FB_has_invokedynamic = 1,
FB_has_pseudo_string = 2
};
@ -96,7 +97,9 @@ class constantPoolOopDesc : public oopDesc {
typeArrayOop tags() const { return _tags; }
bool has_pseudo_string() const { return flag_at(FB_has_pseudo_string); }
bool has_invokedynamic() const { return flag_at(FB_has_invokedynamic); }
void set_pseudo_string() { set_flag_at(FB_has_pseudo_string); }
void set_invokedynamic() { set_flag_at(FB_has_invokedynamic); }
// Klass holding pool
klassOop pool_holder() const { return _pool_holder; }
@ -338,24 +341,28 @@ class constantPoolOopDesc : public oopDesc {
return *int_at_addr(which);
}
// The following methods (klass_ref_at, klass_ref_at_noresolve, name_ref_at,
// signature_ref_at, klass_ref_index_at, name_and_type_ref_index_at,
// name_ref_index_at, signature_ref_index_at) all expect constant pool indices
// The following methods (name/signature/klass_ref_at, klass_ref_at_noresolve,
// name_and_type_ref_index_at) all expect constant pool indices
// from the bytecodes to be passed in, which are actually potentially byte-swapped
// contstant pool cache indices. See field_or_method_at.
// or rewritten constant pool cache indices. They all call map_instruction_operand_to_index.
int map_instruction_operand_to_index(int operand);
// There are also "uncached" versions which do not map the operand index; see below.
// Lookup for entries consisting of (klass_index, name_and_type index)
klassOop klass_ref_at(int which, TRAPS);
symbolOop klass_ref_at_noresolve(int which);
symbolOop name_ref_at(int which);
symbolOop signature_ref_at(int which); // the type descriptor
symbolOop name_ref_at(int which) { return impl_name_ref_at(which, false); }
symbolOop signature_ref_at(int which) { return impl_signature_ref_at(which, false); }
int klass_ref_index_at(int which);
int name_and_type_ref_index_at(int which);
int klass_ref_index_at(int which) { return impl_klass_ref_index_at(which, false); }
int name_and_type_ref_index_at(int which) { return impl_name_and_type_ref_index_at(which, false); }
// Lookup for entries consisting of (name_index, signature_index)
int name_ref_index_at(int which);
int signature_ref_index_at(int which);
int name_ref_index_at(int which_nt); // == low-order jshort of name_and_type_at(which_nt)
int signature_ref_index_at(int which_nt); // == high-order jshort of name_and_type_at(which_nt)
symbolOop nt_name_ref_at(int which_nt) { return symbol_at(name_ref_index_at(which_nt)); }
symbolOop nt_signature_ref_at(int which_nt) { return symbol_at(signature_ref_index_at(which_nt)); }
BasicType basic_type_for_signature_at(int which);
@ -397,10 +404,10 @@ class constantPoolOopDesc : public oopDesc {
// Routines currently used for annotations (only called by jvm.cpp) but which might be used in the
// future by other Java code. These take constant pool indices rather than possibly-byte-swapped
// constant pool cache indices as do the peer methods above.
symbolOop uncached_name_ref_at(int which);
symbolOop uncached_signature_ref_at(int which);
int uncached_klass_ref_index_at(int which);
int uncached_name_and_type_ref_index_at(int which);
symbolOop uncached_name_ref_at(int which) { return impl_name_ref_at(which, true); }
symbolOop uncached_signature_ref_at(int which) { return impl_signature_ref_at(which, true); }
int uncached_klass_ref_index_at(int which) { return impl_klass_ref_index_at(which, true); }
int uncached_name_and_type_ref_index_at(int which) { return impl_name_and_type_ref_index_at(which, true); }
// Sharing
int pre_resolve_shared_klasses(TRAPS);
@ -413,16 +420,19 @@ class constantPoolOopDesc : public oopDesc {
private:
symbolOop impl_name_ref_at(int which, bool uncached);
symbolOop impl_signature_ref_at(int which, bool uncached);
int impl_klass_ref_index_at(int which, bool uncached);
int impl_name_and_type_ref_index_at(int which, bool uncached);
// Takes either a constant pool cache index in possibly byte-swapped
// byte order (which comes from the bytecodes after rewriting) or,
// if "uncached" is true, a vanilla constant pool index
jint field_or_method_at(int which, bool uncached) {
int i = -1;
if (uncached || cache() == NULL) {
i = which;
} else {
int i = which;
if (!uncached && cache() != NULL) {
// change byte-ordering and go via cache
i = cache()->entry_at(Bytes::swap_u2(which))->constant_pool_index();
i = map_instruction_operand_to_index(which);
}
assert(tag_at(i).is_field_or_method(), "Corrupted constant pool");
return *int_at_addr(i);

36
hotspot/src/share/vm/oops/cpCacheKlass.cpp
View File

@ -169,11 +169,47 @@ bool constantPoolCacheKlass::oop_is_conc_safe(oop obj) const {
void constantPoolCacheKlass::oop_copy_contents(PSPromotionManager* pm,
oop obj) {
assert(obj->is_constantPoolCache(), "should be constant pool");
if (EnableInvokeDynamic) {
constantPoolCacheOop cache = (constantPoolCacheOop)obj;
// during a scavenge, it is safe to inspect my pool, since it is perm
constantPoolOop pool = cache->constant_pool();
assert(pool->is_constantPool(), "should be constant pool");
if (pool->has_invokedynamic()) {
for (int i = 0; i < cache->length(); i++) {
ConstantPoolCacheEntry* e = cache->entry_at(i);
oop* p = (oop*)&e->_f1;
if (e->is_secondary_entry()) {
if (PSScavenge::should_scavenge(p))
pm->claim_or_forward_breadth(p);
assert(!(e->is_vfinal() && PSScavenge::should_scavenge((oop*)&e->_f2)),
"no live oops here");
}
}
}
}
}
void constantPoolCacheKlass::oop_push_contents(PSPromotionManager* pm,
oop obj) {
assert(obj->is_constantPoolCache(), "should be constant pool");
if (EnableInvokeDynamic) {
constantPoolCacheOop cache = (constantPoolCacheOop)obj;
// during a scavenge, it is safe to inspect my pool, since it is perm
constantPoolOop pool = cache->constant_pool();
assert(pool->is_constantPool(), "should be constant pool");
if (pool->has_invokedynamic()) {
for (int i = 0; i < cache->length(); i++) {
ConstantPoolCacheEntry* e = cache->entry_at(i);
oop* p = (oop*)&e->_f1;
if (e->is_secondary_entry()) {
if (PSScavenge::should_scavenge(p))
pm->claim_or_forward_depth(p);
assert(!(e->is_vfinal() && PSScavenge::should_scavenge((oop*)&e->_f2)),
"no live oops here");
}
}
}
}
}
int

36
hotspot/src/share/vm/oops/cpCacheOop.cpp
View File

@ -29,8 +29,18 @@
// Implememtation of ConstantPoolCacheEntry
void ConstantPoolCacheEntry::set_initial_state(int index) {
assert(0 <= index && index < 0x10000, "sanity check");
if (constantPoolCacheOopDesc::is_secondary_index(index)) {
// Hack: The rewriter is trying to say that this entry itself
// will be a secondary entry.
int main_index = constantPoolCacheOopDesc::decode_secondary_index(index);
assert(0 <= main_index && main_index < 0x10000, "sanity check");
_indices = (main_index << 16);
assert(main_entry_index() == main_index, "");
return;
}
assert(0 < index && index < 0x10000, "sanity check");
_indices = index;
assert(constant_pool_index() == index, "");
}
@ -136,6 +146,7 @@ void ConstantPoolCacheEntry::set_method(Bytecodes::Code invoke_code,
int byte_no = -1;
bool needs_vfinal_flag = false;
switch (invoke_code) {
case Bytecodes::_invokedynamic:
case Bytecodes::_invokevirtual:
case Bytecodes::_invokeinterface: {
if (method->can_be_statically_bound()) {
@ -211,6 +222,23 @@ void ConstantPoolCacheEntry::set_interface_call(methodHandle method, int index)
}
void ConstantPoolCacheEntry::set_dynamic_call(Handle call_site, int extra_data) {
methodOop method = (methodOop) sun_dyn_CallSiteImpl::vmmethod(call_site());
assert(method->is_method(), "must be initialized properly");
int param_size = method->size_of_parameters();
assert(param_size > 1, "method argument size must include MH.this & initial dynamic receiver");
param_size -= 1; // do not count MH.this; it is not stacked for invokedynamic
if (Atomic::cmpxchg_ptr(call_site(), &_f1, NULL) == NULL) {
// racing threads might be trying to install their own favorites
set_f1(call_site());
}
set_f2(extra_data);
set_flags(as_flags(as_TosState(method->result_type()), method->is_final_method(), false, false, false, true) | param_size);
// do not do set_bytecode on a secondary CP cache entry
//set_bytecode_1(Bytecodes::_invokedynamic);
}
class LocalOopClosure: public OopClosure {
private:
void (*_f)(oop*);
@ -392,7 +420,11 @@ void ConstantPoolCacheEntry::print(outputStream* st, int index) const {
// print separator
if (index == 0) tty->print_cr(" -------------");
// print entry
tty->print_cr("%3d (%08x) [%02x|%02x|%5d]", index, this, bytecode_2(), bytecode_1(), constant_pool_index());
tty->print_cr("%3d (%08x) ", index, this);
if (is_secondary_entry())
tty->print_cr("[%5d|secondary]", main_entry_index());
else
tty->print_cr("[%02x|%02x|%5d]", bytecode_2(), bytecode_1(), constant_pool_index());
tty->print_cr(" [ %08x]", (address)(oop)_f1);
tty->print_cr(" [ %08x]", _f2);
tty->print_cr(" [ %08x]", _flags);

34
hotspot/src/share/vm/oops/cpCacheOop.hpp
View File

@ -89,6 +89,7 @@
// _f1 = method for all but virtual calls, unused by virtual calls
// (note: for interface calls, which are essentially virtual,
// contains klassOop for the corresponding interface.
// for invokedynamic, f1 contains the CallSite object for the invocation
// _f2 = method/vtable index for virtual calls only, unused by all other
// calls. The vf flag indicates this is a method pointer not an
// index.
@ -108,6 +109,8 @@
class ConstantPoolCacheEntry VALUE_OBJ_CLASS_SPEC {
friend class VMStructs;
friend class constantPoolCacheKlass;
private:
volatile intx _indices; // constant pool index & rewrite bytecodes
volatile oop _f1; // entry specific oop field
@ -175,6 +178,11 @@ class ConstantPoolCacheEntry VALUE_OBJ_CLASS_SPEC {
int index // Method index into interface
);
void set_dynamic_call(
Handle call_site, // Resolved java.dyn.CallSite (f1)
int extra_data // (f2)
);
void set_parameter_size(int value) {
assert(parameter_size() == 0 || parameter_size() == value,
"size must not change");
@ -216,7 +224,11 @@ class ConstantPoolCacheEntry VALUE_OBJ_CLASS_SPEC {
}
// Accessors
int constant_pool_index() const { return _indices & 0xFFFF; }
bool is_secondary_entry() const { return (_indices & 0xFFFF) == 0; }
int constant_pool_index() const { assert((_indices & 0xFFFF) != 0, "must be main entry");
return (_indices & 0xFFFF); }
int main_entry_index() const { assert((_indices & 0xFFFF) == 0, "must be secondary entry");
return ((uintx)_indices >> 16); }
Bytecodes::Code bytecode_1() const { return Bytecodes::cast((_indices >> 16) & 0xFF); }
Bytecodes::Code bytecode_2() const { return Bytecodes::cast((_indices >> 24) & 0xFF); }
volatile oop f1() const { return _f1; }
@ -314,10 +326,30 @@ class constantPoolCacheOopDesc: public oopDesc {
// Initialization
void initialize(intArray& inverse_index_map);
// Secondary indexes.
// They must look completely different from normal indexes.
// The main reason is that byte swapping is sometimes done on normal indexes.
// Also, it is helpful for debugging to tell the two apart.
static bool is_secondary_index(int i) { return (i < 0); }
static int decode_secondary_index(int i) { assert(is_secondary_index(i), ""); return ~i; }
static int encode_secondary_index(int i) { assert(!is_secondary_index(i), ""); return ~i; }
// Accessors
void set_constant_pool(constantPoolOop pool) { oop_store_without_check((oop*)&_constant_pool, (oop)pool); }
constantPoolOop constant_pool() const { return _constant_pool; }
ConstantPoolCacheEntry* entry_at(int i) const { assert(0 <= i && i < length(), "index out of bounds"); return base() + i; }
ConstantPoolCacheEntry* main_entry_at(int i) const {
ConstantPoolCacheEntry* e;
if (is_secondary_index(i)) {
// run through an extra level of indirection:
i = decode_secondary_index(i);
e = entry_at(i);
i = e->main_entry_index();
}
e = entry_at(i);
assert(!e->is_secondary_entry(), "only one level of indirection");
return e;
}
// GC support
// If the _length field has not been set, the size of the

10
hotspot/src/share/vm/oops/generateOopMap.cpp
View File

@ -1252,8 +1252,9 @@ void GenerateOopMap::print_current_state(outputStream *os,
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokeinterface:
int idx = currentBC->get_index_big();
int idx = currentBC->get_index_int();
constantPoolOop cp = method()->constants();
int nameAndTypeIdx = cp->name_and_type_ref_index_at(idx);
int signatureIdx = cp->signature_ref_index_at(nameAndTypeIdx);
@ -1283,8 +1284,9 @@ void GenerateOopMap::print_current_state(outputStream *os,
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokeinterface:
int idx = currentBC->get_index_big();
int idx = currentBC->get_index_int();
constantPoolOop cp = method()->constants();
int nameAndTypeIdx = cp->name_and_type_ref_index_at(idx);
int signatureIdx = cp->signature_ref_index_at(nameAndTypeIdx);
@ -1310,6 +1312,7 @@ void GenerateOopMap::interp1(BytecodeStream *itr) {
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokeinterface:
_itr_send = itr;
_report_result_for_send = true;
@ -1556,6 +1559,7 @@ void GenerateOopMap::interp1(BytecodeStream *itr) {
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial: do_method(false, false, itr->get_index_big(), itr->bci()); break;
case Bytecodes::_invokestatic: do_method(true, false, itr->get_index_big(), itr->bci()); break;
case Bytecodes::_invokedynamic: do_method(false, true, itr->get_index_int(), itr->bci()); break;
case Bytecodes::_invokeinterface: do_method(false, true, itr->get_index_big(), itr->bci()); break;
case Bytecodes::_newarray:
case Bytecodes::_anewarray: pp_new_ref(vCTS, itr->bci()); break;
@ -1899,7 +1903,7 @@ void GenerateOopMap::do_method(int is_static, int is_interface, int idx, int bci
// Dig up signature for field in constant pool
constantPoolOop cp = _method->constants();
int nameAndTypeIdx = cp->name_and_type_ref_index_at(idx);
int signatureIdx = cp->signature_ref_index_at(nameAndTypeIdx);
int signatureIdx = cp->signature_ref_index_at(nameAndTypeIdx); // @@@@@
symbolOop signature = cp->symbol_at(signatureIdx);
// Parse method signature

7
hotspot/src/share/vm/oops/instanceKlass.hpp
View File

@ -163,6 +163,8 @@ class instanceKlass: public Klass {
klassOop _implementors[implementors_limit];
// Generic signature, or null if none.
symbolOop _generic_signature;
// invokedynamic bootstrap method (a java.dyn.MethodHandle)
oop _bootstrap_method;
// Annotations for this class, or null if none.
typeArrayOop _class_annotations;
// Annotation objects (byte arrays) for fields, or null if no annotations.
@ -464,6 +466,10 @@ class instanceKlass: public Klass {
u2 method_index) { _enclosing_method_class_index = class_index;
_enclosing_method_method_index = method_index; }
// JSR 292 support
oop bootstrap_method() const { return _bootstrap_method; }
void set_bootstrap_method(oop mh) { oop_store(&_bootstrap_method, mh); }
// jmethodID support
static jmethodID get_jmethod_id(instanceKlassHandle ik_h, size_t idnum,
jmethodID new_id, jmethodID* new_jmeths);
@ -744,6 +750,7 @@ private:
oop* adr_inner_classes() const { return (oop*)&this->_inner_classes;}
oop* adr_implementors() const { return (oop*)&this->_implementors[0];}
oop* adr_generic_signature() const { return (oop*)&this->_generic_signature;}
oop* adr_bootstrap_method() const { return (oop*)&this->_bootstrap_method;}
oop* adr_methods_jmethod_ids() const { return (oop*)&this->_methods_jmethod_ids;}
oop* adr_methods_cached_itable_indices() const { return (oop*)&this->_methods_cached_itable_indices;}
oop* adr_class_annotations() const { return (oop*)&this->_class_annotations;}

12
hotspot/src/share/vm/oops/instanceKlassKlass.cpp
View File

@ -84,6 +84,7 @@ void instanceKlassKlass::oop_follow_contents(oop obj) {
MarkSweep::mark_and_push(ik->adr_host_klass());
MarkSweep::mark_and_push(ik->adr_signers());
MarkSweep::mark_and_push(ik->adr_generic_signature());
MarkSweep::mark_and_push(ik->adr_bootstrap_method());
MarkSweep::mark_and_push(ik->adr_class_annotations());
MarkSweep::mark_and_push(ik->adr_fields_annotations());
MarkSweep::mark_and_push(ik->adr_methods_annotations());
@ -124,6 +125,7 @@ void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm,
PSParallelCompact::mark_and_push(cm, ik->adr_host_klass());
PSParallelCompact::mark_and_push(cm, ik->adr_signers());
PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature());
PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method());
PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations());
PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations());
PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations());
@ -170,6 +172,7 @@ int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
blk->do_oop(&ik->adr_implementors()[i]);
}
blk->do_oop(ik->adr_generic_signature());
blk->do_oop(ik->adr_bootstrap_method());
blk->do_oop(ik->adr_class_annotations());
blk->do_oop(ik->adr_fields_annotations());
blk->do_oop(ik->adr_methods_annotations());
@ -230,6 +233,8 @@ int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk,
}
adr = ik->adr_generic_signature();
if (mr.contains(adr)) blk->do_oop(adr);
adr = ik->adr_bootstrap_method();
if (mr.contains(adr)) blk->do_oop(adr);
adr = ik->adr_class_annotations();
if (mr.contains(adr)) blk->do_oop(adr);
adr = ik->adr_fields_annotations();
@ -274,6 +279,7 @@ int instanceKlassKlass::oop_adjust_pointers(oop obj) {
MarkSweep::adjust_pointer(&ik->adr_implementors()[i]);
}
MarkSweep::adjust_pointer(ik->adr_generic_signature());
MarkSweep::adjust_pointer(ik->adr_bootstrap_method());
MarkSweep::adjust_pointer(ik->adr_class_annotations());
MarkSweep::adjust_pointer(ik->adr_fields_annotations());
MarkSweep::adjust_pointer(ik->adr_methods_annotations());
@ -454,6 +460,7 @@ klassOop instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_
ik->set_breakpoints(NULL);
ik->init_previous_versions();
ik->set_generic_signature(NULL);
ik->set_bootstrap_method(NULL);
ik->release_set_methods_jmethod_ids(NULL);
ik->release_set_methods_cached_itable_indices(NULL);
ik->set_class_annotations(NULL);
@ -578,6 +585,11 @@ void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) {
} // pvw is cleaned up
} // rm is cleaned up
if (ik->bootstrap_method() != NULL) {
st->print(BULLET"bootstrap method: ");
ik->bootstrap_method()->print_value_on(st);
st->cr();
}
if (ik->generic_signature() != NULL) {
st->print(BULLET"generic signature: ");
ik->generic_signature()->print_value_on(st);

7
hotspot/src/share/vm/oops/methodDataOop.cpp
View File

@ -442,6 +442,8 @@ int methodDataOopDesc::bytecode_cell_count(Bytecodes::Code code) {
case Bytecodes::_invokevirtual:
case Bytecodes::_invokeinterface:
return VirtualCallData::static_cell_count();
case Bytecodes::_invokedynamic:
return CounterData::static_cell_count();
case Bytecodes::_ret:
return RetData::static_cell_count();
case Bytecodes::_ifeq:
@ -570,6 +572,11 @@ int methodDataOopDesc::initialize_data(BytecodeStream* stream,
cell_count = VirtualCallData::static_cell_count();
tag = DataLayout::virtual_call_data_tag;
break;
case Bytecodes::_invokedynamic:
// %%% should make a type profile for any invokedynamic that takes a ref argument
cell_count = CounterData::static_cell_count();
tag = DataLayout::counter_data_tag;
break;
case Bytecodes::_ret:
cell_count = RetData::static_cell_count();
tag = DataLayout::ret_data_tag;

2
hotspot/src/share/vm/oops/methodOop.cpp
View File

@ -161,7 +161,7 @@ void methodOopDesc::mask_for(int bci, InterpreterOopMap* mask) {
int methodOopDesc::bci_from(address bcp) const {
assert(is_native() && bcp == code_base() || contains(bcp), "bcp doesn't belong to this method");
assert(is_native() && bcp == code_base() || contains(bcp) || is_error_reported(), "bcp doesn't belong to this method");
return bcp - code_base();
}

5
hotspot/src/share/vm/oops/methodOop.hpp
View File

@ -534,7 +534,10 @@ class methodOopDesc : public oopDesc {
oop method_handle_type() const;
static jint* method_type_offsets_chain(); // series of pointer-offsets, terminated by -1
// presize interpreter frames for extra interpreter stack entries, if needed
static int extra_stack_entries() { return EnableMethodHandles ? (int)MethodHandlePushLimit : 0; }
// method handles want to be able to push a few extra values (e.g., a bound receiver), and
// invokedynamic sometimes needs to push a bootstrap method, call site, and arglist,
// all without checking for a stack overflow
static int extra_stack_entries() { return (EnableMethodHandles ? (int)MethodHandlePushLimit : 0) + (EnableInvokeDynamic ? 3 : 0); }
static int extra_stack_words(); // = extra_stack_entries() * Interpreter::stackElementSize()
// RedefineClasses() support:
bool is_old() const { return access_flags().is_old(); }

2
hotspot/src/share/vm/opto/bytecodeInfo.cpp
View File

@ -321,7 +321,7 @@ bool pass_initial_checks(ciMethod* caller_method, int caller_bci, ciMethod* call
// stricter than callee_holder->is_initialized()
ciBytecodeStream iter(caller_method);
iter.force_bci(caller_bci);
int index = iter.get_index_big();
int index = iter.get_index_int();
if( !caller_method->is_klass_loaded(index, true) ) {
return false;
}

10
hotspot/src/share/vm/opto/doCall.cpp
View File

@ -248,6 +248,14 @@ bool Parse::can_not_compile_call_site(ciMethod *dest_method, ciInstanceKlass* kl
holder_klass);
return true;
}
if (dest_method->is_method_handle_invoke()
&& holder_klass->name() == ciSymbol::java_dyn_Dynamic()) {
// FIXME: NYI
uncommon_trap(Deoptimization::Reason_unhandled,
Deoptimization::Action_none,
holder_klass);
return true;
}
assert(dest_method->will_link(method()->holder(), klass, bc()), "dest_method: typeflow responsibility");
return false;
@ -748,6 +756,7 @@ void Parse::count_compiled_calls(bool at_method_entry, bool is_inline) {
case Bytecodes::_invokevirtual: increment_counter(SharedRuntime::nof_inlined_calls_addr()); break;
case Bytecodes::_invokeinterface: increment_counter(SharedRuntime::nof_inlined_interface_calls_addr()); break;
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokespecial: increment_counter(SharedRuntime::nof_inlined_static_calls_addr()); break;
default: fatal("unexpected call bytecode");
}
@ -756,6 +765,7 @@ void Parse::count_compiled_calls(bool at_method_entry, bool is_inline) {
case Bytecodes::_invokevirtual: increment_counter(SharedRuntime::nof_normal_calls_addr()); break;
case Bytecodes::_invokeinterface: increment_counter(SharedRuntime::nof_interface_calls_addr()); break;
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokespecial: increment_counter(SharedRuntime::nof_static_calls_addr()); break;
default: fatal("unexpected call bytecode");
}

1
hotspot/src/share/vm/opto/graphKit.cpp
View File

@ -947,6 +947,7 @@ bool GraphKit::compute_stack_effects(int& inputs, int& depth) {
case Bytecodes::_invokevirtual:
case Bytecodes::_invokespecial:
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokeinterface:
{
bool is_static = (depth == 0);

1
hotspot/src/share/vm/opto/parse1.cpp
View File

@ -828,6 +828,7 @@ bool Parse::can_rerun_bytecode() {
break;
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokespecial:
case Bytecodes::_invokevirtual:
case Bytecodes::_invokeinterface:

1
hotspot/src/share/vm/opto/parse2.cpp
View File

@ -2156,6 +2156,7 @@ void Parse::do_one_bytecode() {
break;
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokespecial:
case Bytecodes::_invokevirtual:
case Bytecodes::_invokeinterface:

1
hotspot/src/share/vm/opto/parseHelper.cpp
View File

@ -414,6 +414,7 @@ void Parse::profile_call(Node* receiver) {
profile_receiver_type(receiver);
break;
case Bytecodes::_invokestatic:
case Bytecodes::_invokedynamic:
case Bytecodes::_invokespecial:
break;
default: fatal("unexpected call bytecode");

6
hotspot/src/share/vm/prims/jvm.cpp
View File

@ -2222,6 +2222,9 @@ JVM_ENTRY(const char*, JVM_GetCPMethodNameUTF(JNIEnv *env, jclass cls, jint cp_i
case JVM_CONSTANT_InterfaceMethodref:
case JVM_CONSTANT_Methodref:
return cp->uncached_name_ref_at(cp_index)->as_utf8();
case JVM_CONSTANT_NameAndType:
// for invokedynamic
return cp->nt_name_ref_at(cp_index)->as_utf8();
default:
fatal("JVM_GetCPMethodNameUTF: illegal constant");
}
@ -2239,6 +2242,9 @@ JVM_ENTRY(const char*, JVM_GetCPMethodSignatureUTF(JNIEnv *env, jclass cls, jint
case JVM_CONSTANT_InterfaceMethodref:
case JVM_CONSTANT_Methodref:
return cp->uncached_signature_ref_at(cp_index)->as_utf8();
case JVM_CONSTANT_NameAndType:
// for invokedynamic
return cp->nt_signature_ref_at(cp_index)->as_utf8();
default:
fatal("JVM_GetCPMethodSignatureUTF: illegal constant");
}

8
hotspot/src/share/vm/prims/jvmtiClassFileReconstituter.cpp
View File

@ -659,15 +659,21 @@ void JvmtiClassFileReconstituter::copy_bytecodes(methodHandle mh,
case Bytecodes::_invokevirtual : // fall through
case Bytecodes::_invokespecial : // fall through
case Bytecodes::_invokestatic : // fall through
case Bytecodes::_invokedynamic : // fall through
case Bytecodes::_invokeinterface :
assert(len == 3 || (code == Bytecodes::_invokeinterface && len ==5),
"sanity check");
int cpci = Bytes::get_native_u2(bcp+1);
bool is_invokedynamic = (EnableInvokeDynamic && code == Bytecodes::_invokedynamic);
if (is_invokedynamic)
cpci = Bytes::get_native_u4(bcp+1);
// cache cannot be pre-fetched since some classes won't have it yet
ConstantPoolCacheEntry* entry =
mh->constants()->cache()->entry_at(Bytes::get_native_u2(bcp+1));
mh->constants()->cache()->main_entry_at(cpci);
int i = entry->constant_pool_index();
assert(i < mh->constants()->length(), "sanity check");
Bytes::put_Java_u2((address)(p+1), (u2)i); // java byte ordering
if (is_invokedynamic) *(p+3) = *(p+4) = 0;
break;
}
}

4
hotspot/src/share/vm/prims/methodComparator.cpp
View File

@ -148,8 +148,8 @@ bool MethodComparator::args_same(Bytecodes::Code c_old, Bytecodes::Code c_new) {
case Bytecodes::_invokespecial : // fall through
case Bytecodes::_invokestatic : // fall through
case Bytecodes::_invokeinterface : {
u2 cpci_old = _s_old->get_index_big();
u2 cpci_new = _s_new->get_index_big();
u2 cpci_old = _s_old->get_index_int();
u2 cpci_new = _s_new->get_index_int();
// Check if the names of classes, field/method names and signatures at these indexes
// are the same. Indices which are really into constantpool cache (rather than constant
// pool itself) are accepted by the constantpool query routines below.

36
hotspot/src/share/vm/prims/methodHandles.cpp
View File

@ -2279,6 +2279,16 @@ JVM_ENTRY(jint, MHI_getMembers(JNIEnv *env, jobject igcls,
JVM_END
JVM_ENTRY(void, MH_linkCallSite(JNIEnv *env, jobject igcls, jobject site_jh, jobject target_jh)) {
// No special action required, yet.
oop site_oop = JNIHandles::resolve(site_jh);
if (site_oop == NULL || site_oop->klass() != SystemDictionary::CallSiteImpl_klass())
THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "call site");
sun_dyn_CallSiteImpl::set_target(site_oop, JNIHandles::resolve(target_jh));
}
JVM_END
/// JVM_RegisterMethodHandleMethods
#define ADR "J"
@ -2297,6 +2307,7 @@ JVM_END
#define AMH IDYN"AdapterMethodHandle;"
#define BMH IDYN"BoundMethodHandle;"
#define DMH IDYN"DirectMethodHandle;"
#define CSTI IDYN"CallSiteImpl;"
#define CC (char*) /*cast a literal from (const char*)*/
#define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
@ -2320,12 +2331,19 @@ static JNINativeMethod methods[] = {
{CC"getMembers", CC"("CLS""STRG""STRG"I"CLS"I["MEM")I", FN_PTR(MHI_getMembers)}
};
// More entry points specifically for EnableInvokeDynamic.
static JNINativeMethod methods2[] = {
{CC"linkCallSite", CC"("CSTI MH")V", FN_PTR(MH_linkCallSite)}
};
// This one function is exported, used by NativeLookup.
JVM_ENTRY(void, JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass MHN_class)) {
assert(MethodHandles::spot_check_entry_names(), "entry enum is OK");
// note: this explicit warning-producing stuff will be replaced by auto-detection of the JSR 292 classes
if (!EnableMethodHandles) {
warning("JSR 292 method handles are disabled in this JVM. Use -XX:+EnableMethodHandles to enable.");
return; // bind nothing
@ -2343,5 +2361,23 @@ JVM_ENTRY(void, JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass MHN_class))
MethodHandles::set_enabled(true);
}
}
if (!EnableInvokeDynamic) {
warning("JSR 292 invokedynamic is disabled in this JVM. Use -XX:+EnableInvokeDynamic to enable.");
return; // bind nothing
}
{
ThreadToNativeFromVM ttnfv(thread);
int status = env->RegisterNatives(MHN_class, methods2, sizeof(methods2)/sizeof(JNINativeMethod));
if (env->ExceptionOccurred()) {
MethodHandles::set_enabled(false);
warning("JSR 292 method handle code is mismatched to this JVM. Disabling support.");
env->ExceptionClear();
} else {
MethodHandles::set_enabled(true);
}
}
}
JVM_END

6
hotspot/src/share/vm/runtime/arguments.cpp
View File

@ -2627,6 +2627,12 @@ jint Arguments::parse(const JavaVMInitArgs* args) {
}
#endif // PRODUCT
if (EnableInvokeDynamic && !EnableMethodHandles) {
if (!FLAG_IS_DEFAULT(EnableMethodHandles)) {
warning("forcing EnableMethodHandles true to allow EnableInvokeDynamic");
}
EnableMethodHandles = true;
}
if (EnableMethodHandles && !AnonymousClasses) {
if (!FLAG_IS_DEFAULT(AnonymousClasses)) {
warning("forcing AnonymousClasses true to enable EnableMethodHandles");

6
hotspot/src/share/vm/runtime/globals.hpp
View File

@ -3316,6 +3316,12 @@ class CommandLineFlags {
diagnostic(bool, OptimizeMethodHandles, true, \
"when constructing method handles, try to improve them") \
\
product(bool, EnableInvokeDynamic, false, \
"recognize the invokedynamic instruction") \
\
develop(bool, TraceInvokeDynamic, false, \
"trace internal invoke dynamic operations") \
\
product(bool, TaggedStackInterpreter, false, \
"Insert tags in interpreter execution stack for oopmap generaion")\
\

22
hotspot/src/share/vm/utilities/globalDefinitions.hpp
View File

@ -572,8 +572,8 @@ class JavaValue {
enum TosState { // describes the tos cache contents
btos = 0, // byte, bool tos cached
ctos = 1, // short, char tos cached
stos = 2, // short, char tos cached
ctos = 1, // char tos cached
stos = 2, // short tos cached
itos = 3, // int tos cached
ltos = 4, // long tos cached
ftos = 5, // float tos cached
@ -588,7 +588,7 @@ enum TosState { // describes the tos cache contents
inline TosState as_TosState(BasicType type) {
switch (type) {
case T_BYTE : return btos;
case T_BOOLEAN: return btos;
case T_BOOLEAN: return btos; // FIXME: Add ztos
case T_CHAR : return ctos;
case T_SHORT : return stos;
case T_INT : return itos;
@ -602,6 +602,22 @@ inline TosState as_TosState(BasicType type) {
return ilgl;
}
inline BasicType as_BasicType(TosState state) {
switch (state) {
//case ztos: return T_BOOLEAN;//FIXME
case btos : return T_BYTE;
case ctos : return T_CHAR;
case stos : return T_SHORT;
case itos : return T_INT;
case ltos : return T_LONG;
case ftos : return T_FLOAT;
case dtos : return T_DOUBLE;
case atos : return T_OBJECT;
case vtos : return T_VOID;
}
return T_ILLEGAL;
}
// Helper function to convert BasicType info into TosState
// Note: Cannot define here as it uses global constant at the time being.