Mercurial > hg > graal-compiler
diff src/share/vm/runtime/stubRoutines.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | f8236e79048a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/runtime/stubRoutines.cpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,277 @@ +/* + * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +#include "incls/_precompiled.incl" +#include "incls/_stubRoutines.cpp.incl" + + +// Implementation of StubRoutines - for a description +// of how to extend it, see the header file. + +// Class Variables + +BufferBlob* StubRoutines::_code1 = NULL; +BufferBlob* StubRoutines::_code2 = NULL; + +address StubRoutines::_call_stub_return_address = NULL; +address StubRoutines::_call_stub_entry = NULL; + +address StubRoutines::_catch_exception_entry = NULL; +address StubRoutines::_forward_exception_entry = NULL; +address StubRoutines::_throw_AbstractMethodError_entry = NULL; +address StubRoutines::_throw_ArithmeticException_entry = NULL; +address StubRoutines::_throw_NullPointerException_entry = NULL; +address StubRoutines::_throw_NullPointerException_at_call_entry = NULL; +address StubRoutines::_throw_StackOverflowError_entry = NULL; +address StubRoutines::_handler_for_unsafe_access_entry = NULL; +jint StubRoutines::_verify_oop_count = 0; +address StubRoutines::_verify_oop_subroutine_entry = NULL; +address StubRoutines::_atomic_xchg_entry = NULL; +address StubRoutines::_atomic_xchg_ptr_entry = NULL; +address StubRoutines::_atomic_store_entry = NULL; +address StubRoutines::_atomic_store_ptr_entry = NULL; +address StubRoutines::_atomic_cmpxchg_entry = NULL; +address StubRoutines::_atomic_cmpxchg_ptr_entry = NULL; +address StubRoutines::_atomic_cmpxchg_long_entry = NULL; +address StubRoutines::_atomic_add_entry = NULL; +address StubRoutines::_atomic_add_ptr_entry = NULL; +address StubRoutines::_fence_entry = NULL; +address StubRoutines::_d2i_wrapper = NULL; +address StubRoutines::_d2l_wrapper = NULL; + +jint StubRoutines::_fpu_cntrl_wrd_std = 0; +jint StubRoutines::_fpu_cntrl_wrd_24 = 0; +jint StubRoutines::_fpu_cntrl_wrd_64 = 0; +jint StubRoutines::_fpu_cntrl_wrd_trunc = 0; +jint StubRoutines::_mxcsr_std = 0; +jint StubRoutines::_fpu_subnormal_bias1[3] = { 0, 0, 0 }; +jint StubRoutines::_fpu_subnormal_bias2[3] = { 0, 0, 0 }; + +// Compiled code entry points default values +// The dafault functions don't have separate disjoint versions. +address StubRoutines::_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); +address StubRoutines::_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); +address StubRoutines::_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); +address StubRoutines::_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); +address StubRoutines::_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); +address StubRoutines::_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jbyte_copy); +address StubRoutines::_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jshort_copy); +address StubRoutines::_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jint_copy); +address StubRoutines::_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::jlong_copy); +address StubRoutines::_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::oop_copy); + +address StubRoutines::_arrayof_jbyte_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); +address StubRoutines::_arrayof_jshort_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); +address StubRoutines::_arrayof_jint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); +address StubRoutines::_arrayof_jlong_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); +address StubRoutines::_arrayof_oop_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); +address StubRoutines::_arrayof_jbyte_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jbyte_copy); +address StubRoutines::_arrayof_jshort_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jshort_copy); +address StubRoutines::_arrayof_jint_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jint_copy); +address StubRoutines::_arrayof_jlong_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_jlong_copy); +address StubRoutines::_arrayof_oop_disjoint_arraycopy = CAST_FROM_FN_PTR(address, StubRoutines::arrayof_oop_copy); + +address StubRoutines::_checkcast_arraycopy = NULL; +address StubRoutines::_unsafe_arraycopy = NULL; +address StubRoutines::_generic_arraycopy = NULL; + +// Initialization +// +// Note: to break cycle with universe initialization, stubs are generated in two phases. +// The first one generates stubs needed during universe init (e.g., _handle_must_compile_first_entry). +// The second phase includes all other stubs (which may depend on universe being initialized.) + +extern void StubGenerator_generate(CodeBuffer* code, bool all); // only interface to generators + +void StubRoutines::initialize1() { + if (_code1 == NULL) { + ResourceMark rm; + TraceTime timer("StubRoutines generation 1", TraceStartupTime); + _code1 = BufferBlob::create("StubRoutines (1)", code_size1); + if( _code1 == NULL) vm_exit_out_of_memory1(code_size1, "CodeCache: no room for %s", "StubRoutines (1)"); + CodeBuffer buffer(_code1->instructions_begin(), _code1->instructions_size()); + StubGenerator_generate(&buffer, false); + } +} + + +#ifdef ASSERT +typedef void (*arraycopy_fn)(address src, address dst, int count); + +// simple tests of generated arraycopy functions +static void test_arraycopy_func(address func, int alignment) { + int v = 0xcc; + int v2 = 0x11; + jlong lbuffer[2]; + jlong lbuffer2[2]; + address buffer = (address) lbuffer; + address buffer2 = (address) lbuffer2; + unsigned int i; + for (i = 0; i < sizeof(lbuffer); i++) { + buffer[i] = v; buffer2[i] = v2; + } + // do an aligned copy + ((arraycopy_fn)func)(buffer, buffer2, 0); + for (i = 0; i < sizeof(lbuffer); i++) { + assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything"); + } + // adjust destination alignment + ((arraycopy_fn)func)(buffer, buffer2 + alignment, 0); + for (i = 0; i < sizeof(lbuffer); i++) { + assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything"); + } + // adjust source alignment + ((arraycopy_fn)func)(buffer + alignment, buffer2, 0); + for (i = 0; i < sizeof(lbuffer); i++) { + assert(buffer[i] == v && buffer2[i] == v2, "shouldn't have copied anything"); + } +} +#endif + + +void StubRoutines::initialize2() { + if (_code2 == NULL) { + ResourceMark rm; + TraceTime timer("StubRoutines generation 2", TraceStartupTime); + _code2 = BufferBlob::create("StubRoutines (2)", code_size2); + if( _code2 == NULL) vm_exit_out_of_memory1(code_size2, "CodeCache: no room for %s", "StubRoutines (2)"); + CodeBuffer buffer(_code2->instructions_begin(), _code2->instructions_size()); + StubGenerator_generate(&buffer, true); + } + +#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 zeros + TEST_ARRAYCOPY(jbyte); + TEST_ARRAYCOPY(jshort); + TEST_ARRAYCOPY(jint); + TEST_ARRAYCOPY(jlong); + +#undef TEST_ARRAYCOPY + +#endif +} + + +void stubRoutines_init1() { StubRoutines::initialize1(); } +void stubRoutines_init2() { StubRoutines::initialize2(); } + +// +// Default versions of arraycopy functions +// + +static void gen_arraycopy_barrier(oop* dest, size_t count) { + assert(count != 0, "count should be non-zero"); + BarrierSet* bs = Universe::heap()->barrier_set(); + assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); + bs->write_ref_array(MemRegion((HeapWord*)dest, (HeapWord*)(dest + count))); +} + +JRT_LEAF(void, StubRoutines::jbyte_copy(jbyte* src, jbyte* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::conjoint_bytes_atomic(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::jshort_copy(jshort* src, jshort* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::conjoint_jshorts_atomic(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::jint_copy(jint* src, jint* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::conjoint_jints_atomic(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::jlong_copy(jlong* src, jlong* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jlong_array_copy_ctr++; // Slow-path long/double array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::conjoint_jlongs_atomic(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::oop_copy(oop* src, oop* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::conjoint_oops_atomic(src, dest, count); + gen_arraycopy_barrier(dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::arrayof_jbyte_copy(HeapWord* src, HeapWord* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jbyte_array_copy_ctr++; // Slow-path byte array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::arrayof_conjoint_bytes(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::arrayof_jshort_copy(HeapWord* src, HeapWord* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jshort_array_copy_ctr++; // Slow-path short/char array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::arrayof_conjoint_jshorts(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::arrayof_jint_copy(HeapWord* src, HeapWord* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jint_array_copy_ctr++; // Slow-path int/float array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::arrayof_conjoint_jints(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::arrayof_jlong_copy(HeapWord* src, HeapWord* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_jlong_array_copy_ctr++; // Slow-path int/float array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::arrayof_conjoint_jlongs(src, dest, count); +JRT_END + +JRT_LEAF(void, StubRoutines::arrayof_oop_copy(HeapWord* src, HeapWord* dest, size_t count)) +#ifndef PRODUCT + SharedRuntime::_oop_array_copy_ctr++; // Slow-path oop array copy +#endif // !PRODUCT + assert(count != 0, "count should be non-zero"); + Copy::arrayof_conjoint_oops(src, dest, count); + gen_arraycopy_barrier((oop *) dest, count); +JRT_END