void TemplateInterpreter::initialize() {
if (_code != NULL) return;
// assertions
assert((int)Bytecodes::number_of_codes <= (int)DispatchTable::length,
"dispatch table too small");
AbstractInterpreter::initialize();
TemplateTable::initialize();
// generate interpreter
{ ResourceMark rm;
TraceTime timer("Interpreter generation", TRACETIME_LOG(Info, startuptime));
int code_size = InterpreterCodeSize;
NOT_PRODUCT(code_size *= 4;) // debug uses extra interpreter code space
#if INCLUDE_JVMTI
if (CodeCacheExtensions::saving_generated_interpreter()) {
// May requires several versions of the codelets.
// Final size will automatically be optimized.
code_size *= 2;
}
#endif
_code = new StubQueue(new InterpreterCodeletInterface, code_size, NULL,
"Interpreter");
TemplateInterpreterGenerator g(_code);
}
void StubRoutines::initialize1() {
if (_code1 == NULL) {
ResourceMark rm;
TraceTime timer("StubRoutines generation 1", TRACETIME_LOG(Info, startuptime));
_code1 = BufferBlob::create("StubRoutines (1)", code_size1);
if (_code1 == NULL) {
vm_exit_out_of_memory(code_size1, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (1)");
}
CodeBuffer buffer(_code1);
StubGenerator_generate(&buffer, false);
// When new stubs added we need to make sure there is some space left
// to catch situation when we should increase size again.
assert(code_size1 == 0 || buffer.insts_remaining() > 200, "increase code_size1");
}
}
void TemplateInterpreter::initialize() {
if (_code != NULL) return;
// assertions
assert((int)Bytecodes::number_of_codes <= (int)DispatchTable::length,
"dispatch table too small");
AbstractInterpreter::initialize();
TemplateTable::initialize();
// generate interpreter
{ ResourceMark rm;
TraceTime timer("Interpreter generation", TRACETIME_LOG(Info, startuptime));
int code_size = InterpreterCodeSize;
NOT_PRODUCT(code_size *= 4;) // debug uses extra interpreter code space
_code = new StubQueue(new InterpreterCodeletInterface, code_size, NULL,
"Interpreter");
TemplateInterpreterGenerator g(_code);
}
void StubRoutines::initialize2() {
if (_code2 == NULL) {
ResourceMark rm;
TraceTime timer("StubRoutines generation 2", TRACETIME_LOG(Info, startuptime));
_code2 = BufferBlob::create("StubRoutines (2)", code_size2);
if (_code2 == NULL) {
vm_exit_out_of_memory(code_size2, OOM_MALLOC_ERROR, "CodeCache: no room for StubRoutines (2)");
}
CodeBuffer buffer(_code2);
StubGenerator_generate(&buffer, true);
// When new stubs added we need to make sure there is some space left
// to catch situation when we should increase size again.
assert(code_size2 == 0 || buffer.insts_remaining() > 200, "increase code_size2");
}
#ifdef ASSERT
#define TEST_ARRAYCOPY(type) \
test_arraycopy_func( type##_arraycopy(), sizeof(type)); \
test_arraycopy_func( type##_disjoint_arraycopy(), sizeof(type)); \
test_arraycopy_func(arrayof_##type##_arraycopy(), sizeof(HeapWord)); \
test_arraycopy_func(arrayof_##type##_disjoint_arraycopy(), sizeof(HeapWord))
// Make sure all the arraycopy stubs properly handle zero count
TEST_ARRAYCOPY(jbyte);
TEST_ARRAYCOPY(jshort);
TEST_ARRAYCOPY(jint);
TEST_ARRAYCOPY(jlong);
#undef TEST_ARRAYCOPY
#define TEST_FILL(type) \
if (_##type##_fill != NULL) { \
union { \
double d; \
type body[96]; \
} s; \
\
int v = 32; \
for (int offset = -2; offset <= 2; offset++) { \
for (int i = 0; i < 96; i++) { \
s.body[i] = 1; \
} \
type* start = s.body + 8 + offset; \
for (int aligned = 0; aligned < 2; aligned++) { \
if (aligned) { \
if (((intptr_t)start) % HeapWordSize == 0) { \
((void (*)(type*, int, int))StubRoutines::_arrayof_##type##_fill)(start, v, 80); \
} else { \
continue; \
} \
} else { \
((void (*)(type*, int, int))StubRoutines::_##type##_fill)(start, v, 80); \
} \
for (int i = 0; i < 96; i++) { \
if (i < (8 + offset) || i >= (88 + offset)) { \
assert(s.body[i] == 1, "what?"); \
} else { \
assert(s.body[i] == 32, "what?"); \
} \
} \
} \
} \
} \
TEST_FILL(jbyte);
TEST_FILL(jshort);
TEST_FILL(jint);
#undef TEST_FILL
#define TEST_COPYRTN(type) \
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_##type##s_atomic), sizeof(type)); \
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::arrayof_conjoint_##type##s), (int)MAX2(sizeof(HeapWord), sizeof(type)))
// Make sure all the copy runtime routines properly handle zero count
TEST_COPYRTN(jbyte);
TEST_COPYRTN(jshort);
TEST_COPYRTN(jint);
TEST_COPYRTN(jlong);
#undef TEST_COPYRTN
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::conjoint_words), sizeof(HeapWord));
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words), sizeof(HeapWord));
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::disjoint_words_atomic), sizeof(HeapWord));
// Aligned to BytesPerLong
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_conjoint_words), sizeof(jlong));
test_arraycopy_func(CAST_FROM_FN_PTR(address, Copy::aligned_disjoint_words), sizeof(jlong));
// test safefetch routines
// Not on Windows 32bit until 8074860 is fixed
#if ! (defined(_WIN32) && defined(_M_IX86))
test_safefetch32();
test_safefetchN();
#endif
#endif
}
