1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/c1/c1_Runtime1.hpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,190 @@
1.4 +/*
1.5 + * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +class StubAssembler;
1.29 +
1.30 +// The Runtime1 holds all assembly stubs and VM
1.31 +// runtime routines needed by code code generated
1.32 +// by the Compiler1.
1.33 +
1.34 +#define RUNTIME1_STUBS(stub, last_entry) \
1.35 + stub(dtrace_object_alloc) \
1.36 + stub(unwind_exception) \
1.37 + stub(forward_exception) \
1.38 + stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \
1.39 + stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \
1.40 + stub(throw_div0_exception) \
1.41 + stub(throw_null_pointer_exception) \
1.42 + stub(register_finalizer) \
1.43 + stub(new_instance) \
1.44 + stub(fast_new_instance) \
1.45 + stub(fast_new_instance_init_check) \
1.46 + stub(new_type_array) \
1.47 + stub(new_object_array) \
1.48 + stub(new_multi_array) \
1.49 + stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \
1.50 + stub(handle_exception) \
1.51 + stub(throw_array_store_exception) \
1.52 + stub(throw_class_cast_exception) \
1.53 + stub(throw_incompatible_class_change_error) \
1.54 + stub(slow_subtype_check) \
1.55 + stub(monitorenter) \
1.56 + stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \
1.57 + stub(monitorexit) \
1.58 + stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \
1.59 + stub(access_field_patching) \
1.60 + stub(load_klass_patching) \
1.61 + stub(jvmti_exception_throw) \
1.62 + stub(fpu2long_stub) \
1.63 + stub(counter_overflow) \
1.64 + last_entry(number_of_ids)
1.65 +
1.66 +#define DECLARE_STUB_ID(x) x ## _id ,
1.67 +#define DECLARE_LAST_STUB_ID(x) x
1.68 +#define STUB_NAME(x) #x " Runtime1 stub",
1.69 +#define LAST_STUB_NAME(x) #x " Runtime1 stub"
1.70 +
1.71 +class Runtime1: public AllStatic {
1.72 + friend class VMStructs;
1.73 + friend class ArrayCopyStub;
1.74 + private:
1.75 + static int desired_max_code_buffer_size() {
1.76 + return (int) NMethodSizeLimit; // default 256K or 512K
1.77 + }
1.78 + static int desired_max_constant_size() {
1.79 + return (int) NMethodSizeLimit / 10; // about 25K
1.80 + }
1.81 +
1.82 + // Note: This buffers is allocated once at startup since allocation
1.83 + // for each compilation seems to be too expensive (at least on Intel
1.84 + // win32).
1.85 + static BufferBlob* _buffer_blob;
1.86 +
1.87 + public:
1.88 + enum StubID {
1.89 + RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID)
1.90 + };
1.91 +
1.92 + // statistics
1.93 +#ifndef PRODUCT
1.94 + static int _resolve_invoke_cnt;
1.95 + static int _handle_wrong_method_cnt;
1.96 + static int _ic_miss_cnt;
1.97 + static int _generic_arraycopy_cnt;
1.98 + static int _primitive_arraycopy_cnt;
1.99 + static int _oop_arraycopy_cnt;
1.100 + static int _arraycopy_slowcase_cnt;
1.101 + static int _new_type_array_slowcase_cnt;
1.102 + static int _new_object_array_slowcase_cnt;
1.103 + static int _new_instance_slowcase_cnt;
1.104 + static int _new_multi_array_slowcase_cnt;
1.105 + static int _monitorenter_slowcase_cnt;
1.106 + static int _monitorexit_slowcase_cnt;
1.107 + static int _patch_code_slowcase_cnt;
1.108 + static int _throw_range_check_exception_count;
1.109 + static int _throw_index_exception_count;
1.110 + static int _throw_div0_exception_count;
1.111 + static int _throw_null_pointer_exception_count;
1.112 + static int _throw_class_cast_exception_count;
1.113 + static int _throw_incompatible_class_change_error_count;
1.114 + static int _throw_array_store_exception_count;
1.115 + static int _throw_count;
1.116 +#endif
1.117 +
1.118 + private:
1.119 + static bool _is_initialized;
1.120 + static CodeBlob* _blobs[number_of_ids];
1.121 + static const char* _blob_names[];
1.122 +
1.123 + // stub generation
1.124 + static void generate_blob_for(StubID id);
1.125 + static OopMapSet* generate_code_for(StubID id, StubAssembler* masm);
1.126 + static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
1.127 + static void generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map, bool ignore_fpu_registers = false);
1.128 + static void generate_unwind_exception(StubAssembler *sasm);
1.129 + static OopMapSet* generate_patching(StubAssembler* sasm, address target);
1.130 +
1.131 + static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
1.132 + Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg);
1.133 +
1.134 + // runtime entry points
1.135 + static void new_instance (JavaThread* thread, klassOopDesc* klass);
1.136 + static void new_type_array (JavaThread* thread, klassOopDesc* klass, jint length);
1.137 + static void new_object_array(JavaThread* thread, klassOopDesc* klass, jint length);
1.138 + static void new_multi_array (JavaThread* thread, klassOopDesc* klass, int rank, jint* dims);
1.139 +
1.140 +#ifdef TIERED
1.141 + static void counter_overflow(JavaThread* thread, int bci);
1.142 +#endif // TIERED
1.143 +
1.144 + static void unimplemented_entry (JavaThread* thread, StubID id);
1.145 +
1.146 + static address exception_handler_for_pc(JavaThread* thread);
1.147 + static void post_jvmti_exception_throw(JavaThread* thread);
1.148 +
1.149 + static void throw_range_check_exception(JavaThread* thread, int index);
1.150 + static void throw_index_exception(JavaThread* thread, int index);
1.151 + static void throw_div0_exception(JavaThread* thread);
1.152 + static void throw_null_pointer_exception(JavaThread* thread);
1.153 + static void throw_class_cast_exception(JavaThread* thread, oopDesc* obect);
1.154 + static void throw_incompatible_class_change_error(JavaThread* thread);
1.155 + static void throw_array_store_exception(JavaThread* thread);
1.156 +
1.157 + static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock);
1.158 + static void monitorexit (JavaThread* thread, BasicObjectLock* lock);
1.159 +
1.160 + static int access_field_patching(JavaThread* thread);
1.161 + static int move_klass_patching(JavaThread* thread);
1.162 +
1.163 + static void patch_code(JavaThread* thread, StubID stub_id);
1.164 +
1.165 + public:
1.166 + static BufferBlob* get_buffer_blob();
1.167 + static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate);
1.168 +
1.169 + // initialization
1.170 + static bool is_initialized() { return _is_initialized; }
1.171 + static void initialize();
1.172 + static void initialize_pd();
1.173 +
1.174 + // stubs
1.175 + static CodeBlob* blob_for (StubID id);
1.176 + static address entry_for(StubID id) { return blob_for(id)->instructions_begin(); }
1.177 + static const char* name_for (StubID id);
1.178 + static const char* name_for_address(address entry);
1.179 +
1.180 + // method tracing
1.181 + static void trace_block_entry(jint block_id);
1.182 +
1.183 +#ifndef PRODUCT
1.184 + static address throw_count_address() { return (address)&_throw_count; }
1.185 +#endif
1.186 +
1.187 + // directly accessible leaf routine
1.188 + static int arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length);
1.189 + static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length);
1.190 + static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length);
1.191 +
1.192 + static void print_statistics() PRODUCT_RETURN;
1.193 +};
