/* * Copyright (c) 2002, 2005, Oracle and/or its affiliates. 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ // -*- C++ -*- struct entry; struct cpindex; struct unpacker; struct band { #ifndef PRODUCT const char* name; #endif int bn; // band_number of this band coding* defc; // default coding method cpindex* ix; // CP entry mapping, if CPRefBand byte ixTag; // 0 or 1; null is coded as (nullOK?0:-1) byte nullOK; // 0 or 1; null is coded as (nullOK?0:-1) int length; // expected # values unpacker* u; // back pointer value_stream vs[2]; // source of values coding_method cm; // method used for initial state of vs[0] byte* rplimit; // end of band (encoded, transmitted) int total_memo; // cached value of getIntTotal, or -1 int* hist0; // approximate. histogram enum { HIST0_MIN = 0, HIST0_MAX = 255 }; // catches the usual cases // properties for attribute layout elements: byte le_kind; // EK_XXX byte le_bci; // 0,EK_BCI,EK_BCD,EK_BCO byte le_back; // ==EF_BACK byte le_len; // 0,1,2,4 (size in classfile), or call addr band** le_body; // body of repl, union, call (null-terminated) // Note: EK_CASE elements use hist0 to record union tags. #define le_casetags hist0 band& nextBand() { return this[1]; } band& prevBand() { return this[-1]; } void init(unpacker* u_, int bn_, coding* defc_) { u = u_; cm.u = u_; bn = bn_; defc = defc_; } void init(unpacker* u_, int bn_, int defcSpec) { init(u_, bn_, coding::findBySpec(defcSpec)); } void initRef(int ixTag_ = 0, bool nullOK_ = false) { ixTag = ixTag_; nullOK = nullOK_; setIndexByTag(ixTag); } void expectMoreLength(int l) { assert(length >= 0); // able to accept a length assert((int)l >= 0); // no overflow assert(rplimit == null); // readData not yet called length += l; assert(length >= l); // no overflow } void setIndex(cpindex* ix_); void setIndexByTag(byte tag); // Parse the band and its meta-coding header. void readData(int expectedLength = 0); // Reset the band for another pass (Cf. Java Band.resetForSecondPass.) void rewind() { cm.reset(&vs[0]); } byte* &curRP() { return vs[0].rp; } byte* minRP() { return cm.vs0.rp; } byte* maxRP() { return rplimit; } size_t size() { return maxRP() - minRP(); } int getByte() { assert(ix == null); return vs[0].getByte(); } int getInt() { assert(ix == null); return vs[0].getInt(); } entry* getRefN() { return getRefCommon(ix, true); } entry* getRef() { return getRefCommon(ix, false); } entry* getRefUsing(cpindex* ix2) { assert(ix == null); return getRefCommon(ix2, true); } entry* getRefCommon(cpindex* ix, bool nullOK); jlong getLong(band& lo_band, bool have_hi); static jlong makeLong(uint hi, uint lo) { return ((julong)hi << 32) + (((julong)lo << 32) >> 32); } int getIntTotal(); int getIntCount(int tag); static band* makeBands(unpacker* u); static void initIndexes(unpacker* u); #ifndef PRODUCT void dump(); #endif void abort(const char* msg = null); //{ u->abort(msg); } bool aborting(); //{ return u->aborting(); } }; extern band all_bands[]; #define BAND_LOCAL /* \ band* band_temp = all_bands; \ band* all_bands = band_temp */ // Band schema: enum band_number { //e_archive_magic, //e_archive_header, //e_band_headers, // constant pool contents e_cp_Utf8_prefix, e_cp_Utf8_suffix, e_cp_Utf8_chars, e_cp_Utf8_big_suffix, e_cp_Utf8_big_chars, e_cp_Int, e_cp_Float, e_cp_Long_hi, e_cp_Long_lo, e_cp_Double_hi, e_cp_Double_lo, e_cp_String, e_cp_Class, e_cp_Signature_form, e_cp_Signature_classes, e_cp_Descr_name, e_cp_Descr_type, e_cp_Field_class, e_cp_Field_desc, e_cp_Method_class, e_cp_Method_desc, e_cp_Imethod_class, e_cp_Imethod_desc, // bands which define transmission of attributes e_attr_definition_headers, e_attr_definition_name, e_attr_definition_layout, // band for hardwired InnerClasses attribute (shared across the package) e_ic_this_class, e_ic_flags, // These bands contain data only where flags sets ACC_IC_LONG_FORM: e_ic_outer_class, e_ic_name, // bands for carrying class schema information: e_class_this, e_class_super, e_class_interface_count, e_class_interface, // bands for class members e_class_field_count, e_class_method_count, e_field_descr, e_field_flags_hi, e_field_flags_lo, e_field_attr_count, e_field_attr_indexes, e_field_attr_calls, e_field_ConstantValue_KQ, e_field_Signature_RS, e_field_metadata_bands, e_field_attr_bands, e_method_descr, e_method_flags_hi, e_method_flags_lo, e_method_attr_count, e_method_attr_indexes, e_method_attr_calls, e_method_Exceptions_N, e_method_Exceptions_RC, e_method_Signature_RS, e_method_metadata_bands, e_method_attr_bands, e_class_flags_hi, e_class_flags_lo, e_class_attr_count, e_class_attr_indexes, e_class_attr_calls, e_class_SourceFile_RUN, e_class_EnclosingMethod_RC, e_class_EnclosingMethod_RDN, e_class_Signature_RS, e_class_metadata_bands, e_class_InnerClasses_N, e_class_InnerClasses_RC, e_class_InnerClasses_F, e_class_InnerClasses_outer_RCN, e_class_InnerClasses_name_RUN, e_class_ClassFile_version_minor_H, e_class_ClassFile_version_major_H, e_class_attr_bands, e_code_headers, e_code_max_stack, e_code_max_na_locals, e_code_handler_count, e_code_handler_start_P, e_code_handler_end_PO, e_code_handler_catch_PO, e_code_handler_class_RCN, // code attributes e_code_flags_hi, e_code_flags_lo, e_code_attr_count, e_code_attr_indexes, e_code_attr_calls, e_code_StackMapTable_N, e_code_StackMapTable_frame_T, e_code_StackMapTable_local_N, e_code_StackMapTable_stack_N, e_code_StackMapTable_offset, e_code_StackMapTable_T, e_code_StackMapTable_RC, e_code_StackMapTable_P, e_code_LineNumberTable_N, e_code_LineNumberTable_bci_P, e_code_LineNumberTable_line, e_code_LocalVariableTable_N, e_code_LocalVariableTable_bci_P, e_code_LocalVariableTable_span_O, e_code_LocalVariableTable_name_RU, e_code_LocalVariableTable_type_RS, e_code_LocalVariableTable_slot, e_code_LocalVariableTypeTable_N, e_code_LocalVariableTypeTable_bci_P, e_code_LocalVariableTypeTable_span_O, e_code_LocalVariableTypeTable_name_RU, e_code_LocalVariableTypeTable_type_RS, e_code_LocalVariableTypeTable_slot, e_code_attr_bands, // bands for bytecodes e_bc_codes, // remaining bands provide typed opcode fields required by the bc_codes e_bc_case_count, e_bc_case_value, e_bc_byte, e_bc_short, e_bc_local, e_bc_label, // ldc* operands: e_bc_intref, e_bc_floatref, e_bc_longref, e_bc_doubleref, e_bc_stringref, e_bc_classref, e_bc_fieldref, e_bc_methodref, e_bc_imethodref, // _self_linker_op family e_bc_thisfield, e_bc_superfield, e_bc_thismethod, e_bc_supermethod, // bc_invokeinit family: e_bc_initref, // bytecode escape sequences e_bc_escref, e_bc_escrefsize, e_bc_escsize, e_bc_escbyte, // file attributes and contents e_file_name, e_file_size_hi, e_file_size_lo, e_file_modtime, e_file_options, //e_file_bits, // handled specially as an appendix BAND_LIMIT }; // Symbolic names for bands, as if in a giant global struct: //#define archive_magic all_bands[e_archive_magic] //#define archive_header all_bands[e_archive_header] //#define band_headers all_bands[e_band_headers] #define cp_Utf8_prefix all_bands[e_cp_Utf8_prefix] #define cp_Utf8_suffix all_bands[e_cp_Utf8_suffix] #define cp_Utf8_chars all_bands[e_cp_Utf8_chars] #define cp_Utf8_big_suffix all_bands[e_cp_Utf8_big_suffix] #define cp_Utf8_big_chars all_bands[e_cp_Utf8_big_chars] #define cp_Int all_bands[e_cp_Int] #define cp_Float all_bands[e_cp_Float] #define cp_Long_hi all_bands[e_cp_Long_hi] #define cp_Long_lo all_bands[e_cp_Long_lo] #define cp_Double_hi all_bands[e_cp_Double_hi] #define cp_Double_lo all_bands[e_cp_Double_lo] #define cp_String all_bands[e_cp_String] #define cp_Class all_bands[e_cp_Class] #define cp_Signature_form all_bands[e_cp_Signature_form] #define cp_Signature_classes all_bands[e_cp_Signature_classes] #define cp_Descr_name all_bands[e_cp_Descr_name] #define cp_Descr_type all_bands[e_cp_Descr_type] #define cp_Field_class all_bands[e_cp_Field_class] #define cp_Field_desc all_bands[e_cp_Field_desc] #define cp_Method_class all_bands[e_cp_Method_class] #define cp_Method_desc all_bands[e_cp_Method_desc] #define cp_Imethod_class all_bands[e_cp_Imethod_class] #define cp_Imethod_desc all_bands[e_cp_Imethod_desc] #define attr_definition_headers all_bands[e_attr_definition_headers] #define attr_definition_name all_bands[e_attr_definition_name] #define attr_definition_layout all_bands[e_attr_definition_layout] #define ic_this_class all_bands[e_ic_this_class] #define ic_flags all_bands[e_ic_flags] #define ic_outer_class all_bands[e_ic_outer_class] #define ic_name all_bands[e_ic_name] #define class_this all_bands[e_class_this] #define class_super all_bands[e_class_super] #define class_interface_count all_bands[e_class_interface_count] #define class_interface all_bands[e_class_interface] #define class_field_count all_bands[e_class_field_count] #define class_method_count all_bands[e_class_method_count] #define field_descr all_bands[e_field_descr] #define field_flags_hi all_bands[e_field_flags_hi] #define field_flags_lo all_bands[e_field_flags_lo] #define field_attr_count all_bands[e_field_attr_count] #define field_attr_indexes all_bands[e_field_attr_indexes] #define field_ConstantValue_KQ all_bands[e_field_ConstantValue_KQ] #define field_Signature_RS all_bands[e_field_Signature_RS] #define field_attr_bands all_bands[e_field_attr_bands] #define method_descr all_bands[e_method_descr] #define method_flags_hi all_bands[e_method_flags_hi] #define method_flags_lo all_bands[e_method_flags_lo] #define method_attr_count all_bands[e_method_attr_count] #define method_attr_indexes all_bands[e_method_attr_indexes] #define method_Exceptions_N all_bands[e_method_Exceptions_N] #define method_Exceptions_RC all_bands[e_method_Exceptions_RC] #define method_Signature_RS all_bands[e_method_Signature_RS] #define method_attr_bands all_bands[e_method_attr_bands] #define class_flags_hi all_bands[e_class_flags_hi] #define class_flags_lo all_bands[e_class_flags_lo] #define class_attr_count all_bands[e_class_attr_count] #define class_attr_indexes all_bands[e_class_attr_indexes] #define class_SourceFile_RUN all_bands[e_class_SourceFile_RUN] #define class_EnclosingMethod_RC all_bands[e_class_EnclosingMethod_RC] #define class_EnclosingMethod_RDN all_bands[e_class_EnclosingMethod_RDN] #define class_Signature_RS all_bands[e_class_Signature_RS] #define class_InnerClasses_N all_bands[e_class_InnerClasses_N] #define class_InnerClasses_RC all_bands[e_class_InnerClasses_RC] #define class_InnerClasses_F all_bands[e_class_InnerClasses_F] #define class_InnerClasses_outer_RCN all_bands[e_class_InnerClasses_outer_RCN] #define class_InnerClasses_name_RUN all_bands[e_class_InnerClasses_name_RUN] #define class_ClassFile_version_minor_H all_bands[e_class_ClassFile_version_minor_H] #define class_ClassFile_version_major_H all_bands[e_class_ClassFile_version_major_H] #define class_attr_bands all_bands[e_class_attr_bands] #define code_headers all_bands[e_code_headers] #define code_max_stack all_bands[e_code_max_stack] #define code_max_na_locals all_bands[e_code_max_na_locals] #define code_handler_count all_bands[e_code_handler_count] #define code_handler_start_P all_bands[e_code_handler_start_P] #define code_handler_end_PO all_bands[e_code_handler_end_PO] #define code_handler_catch_PO all_bands[e_code_handler_catch_PO] #define code_handler_class_RCN all_bands[e_code_handler_class_RCN] #define code_flags_hi all_bands[e_code_flags_hi] #define code_flags_lo all_bands[e_code_flags_lo] #define code_attr_count all_bands[e_code_attr_count] #define code_attr_indexes all_bands[e_code_attr_indexes] #define code_StackMapTable_N all_bands[e_code_StackMapTable_N] #define code_StackMapTable_frame_T all_bands[e_code_StackMapTable_frame_T] #define code_StackMapTable_local_N all_bands[e_code_StackMapTable_local_N] #define code_StackMapTable_stack_N all_bands[e_code_StackMapTable_stack_N] #define code_StackMapTable_offset all_bands[e_code_StackMapTable_offset] #define code_StackMapTable_T all_bands[e_code_StackMapTable_T] #define code_StackMapTable_RC all_bands[e_code_StackMapTable_RC] #define code_StackMapTable_P all_bands[e_code_StackMapTable_P] #define code_LineNumberTable_N all_bands[e_code_LineNumberTable_N] #define code_LineNumberTable_bci_P all_bands[e_code_LineNumberTable_bci_P] #define code_LineNumberTable_line all_bands[e_code_LineNumberTable_line] #define code_LocalVariableTable_N all_bands[e_code_LocalVariableTable_N] #define code_LocalVariableTable_bci_P all_bands[e_code_LocalVariableTable_bci_P] #define code_LocalVariableTable_span_O all_bands[e_code_LocalVariableTable_span_O] #define code_LocalVariableTable_name_RU all_bands[e_code_LocalVariableTable_name_RU] #define code_LocalVariableTable_type_RS all_bands[e_code_LocalVariableTable_type_RS] #define code_LocalVariableTable_slot all_bands[e_code_LocalVariableTable_slot] #define code_LocalVariableTypeTable_N all_bands[e_code_LocalVariableTypeTable_N] #define code_LocalVariableTypeTable_bci_P all_bands[e_code_LocalVariableTypeTable_bci_P] #define code_LocalVariableTypeTable_span_O all_bands[e_code_LocalVariableTypeTable_span_O] #define code_LocalVariableTypeTable_name_RU all_bands[e_code_LocalVariableTypeTable_name_RU] #define code_LocalVariableTypeTable_type_RS all_bands[e_code_LocalVariableTypeTable_type_RS] #define code_LocalVariableTypeTable_slot all_bands[e_code_LocalVariableTypeTable_slot] #define code_attr_bands all_bands[e_code_attr_bands] #define bc_codes all_bands[e_bc_codes] #define bc_case_count all_bands[e_bc_case_count] #define bc_case_value all_bands[e_bc_case_value] #define bc_byte all_bands[e_bc_byte] #define bc_short all_bands[e_bc_short] #define bc_local all_bands[e_bc_local] #define bc_label all_bands[e_bc_label] #define bc_intref all_bands[e_bc_intref] #define bc_floatref all_bands[e_bc_floatref] #define bc_longref all_bands[e_bc_longref] #define bc_doubleref all_bands[e_bc_doubleref] #define bc_stringref all_bands[e_bc_stringref] #define bc_classref all_bands[e_bc_classref] #define bc_fieldref all_bands[e_bc_fieldref] #define bc_methodref all_bands[e_bc_methodref] #define bc_imethodref all_bands[e_bc_imethodref] #define bc_thisfield all_bands[e_bc_thisfield] #define bc_superfield all_bands[e_bc_superfield] #define bc_thismethod all_bands[e_bc_thismethod] #define bc_supermethod all_bands[e_bc_supermethod] #define bc_initref all_bands[e_bc_initref] #define bc_escref all_bands[e_bc_escref] #define bc_escrefsize all_bands[e_bc_escrefsize] #define bc_escsize all_bands[e_bc_escsize] #define bc_escbyte all_bands[e_bc_escbyte] #define file_name all_bands[e_file_name] #define file_size_hi all_bands[e_file_size_hi] #define file_size_lo all_bands[e_file_size_lo] #define file_modtime all_bands[e_file_modtime] #define file_options all_bands[e_file_options]