/*

 * Copyright (c) 2001, 2016, 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.

 */

// classfile constants

#define JAVA_MAGIC 0xCAFEBABE

// Class version history, refer to Constants.java

// package file constants

#define JAVA_PACKAGE_MAGIC 0xCAFED00D

#define JAVA5_PACKAGE_MAJOR_VERSION 150

#define JAVA5_PACKAGE_MINOR_VERSION 7

#define JAVA6_PACKAGE_MAJOR_VERSION 160

#define JAVA6_PACKAGE_MINOR_VERSION 1

#define JAVA7_PACKAGE_MAJOR_VERSION 170

#define JAVA7_PACKAGE_MINOR_VERSION 1

#define JAVA8_PACKAGE_MAJOR_VERSION 171

#define JAVA8_PACKAGE_MINOR_VERSION 0

// magic number for gzip streams (for processing pack200-gzip data)

#define GZIP_MAGIC      0x1F8B0800

#define GZIP_MAGIC_MASK 0xFFFFFF00  // last byte is variable "flg" field

enum {

    CONSTANT_None               = 0,

    CONSTANT_Utf8               = 1,

    CONSTANT_unused             = 2,     /* unused, was Unicode */

    CONSTANT_Integer            = 3,

    CONSTANT_Float              = 4,

    CONSTANT_Long               = 5,

    CONSTANT_Double             = 6,

    CONSTANT_Class              = 7,

    CONSTANT_String             = 8,

    CONSTANT_Fieldref           = 9,

    CONSTANT_Methodref          = 10,

    CONSTANT_InterfaceMethodref = 11,

    CONSTANT_NameandType        = 12,

    CONSTANT_unused13           = 13,

    CONSTANT_unused14           = 14,

    CONSTANT_MethodHandle       = 15,

    CONSTANT_MethodType         = 16,

    CONSTANT_unused17           = 17,

    CONSTANT_InvokeDynamic      = 18,

    CONSTANT_Limit              = 19,

    CONSTANT_Signature          = CONSTANT_unused13,

    CONSTANT_BootstrapMethod    = CONSTANT_unused17, // used only for InvokeDynamic

    CONSTANT_All                = 50,                // combined global map

    CONSTANT_LoadableValue      = 51,                // used for 'KL' and qldc operands

    CONSTANT_AnyMember          = 52,                // union of refs to field or (interface) method

    CONSTANT_FieldSpecific      = 53,                // used only for 'KQ' ConstantValue attrs

    CONSTANT_GroupFirst         = CONSTANT_All,      // start group marker

    CONSTANT_GroupLimit         = 54,                // end group marker

    // CONSTANT_MethodHandle reference kinds

    REF_getField         = 1,

    REF_getStatic        = 2,

    REF_putField         = 3,

    REF_putStatic        = 4,

    REF_invokeVirtual    = 5,

    REF_invokeStatic     = 6,

    REF_invokeSpecial    = 7,

    REF_newInvokeSpecial = 8,

    REF_invokeInterface  = 9,

    SUBINDEX_BIT = 64,  // combined with CONSTANT_xxx for ixTag

    ACC_STATIC       = 0x0008,

    ACC_IC_LONG_FORM = (1<<16), //for ic_flags

    CLASS_ATTR_SourceFile                            = 17,

    CLASS_ATTR_EnclosingMethod                       = 18,

    CLASS_ATTR_InnerClasses                          = 23,

    CLASS_ATTR_ClassFile_version                     = 24,

    CLASS_ATTR_BootstrapMethods                      = 25,

    FIELD_ATTR_ConstantValue                         = 17,

    METHOD_ATTR_Code                                 = 17,

    METHOD_ATTR_Exceptions                           = 18,

    METHOD_ATTR_RuntimeVisibleParameterAnnotations   = 23,

    METHOD_ATTR_RuntimeInvisibleParameterAnnotations = 24,

    METHOD_ATTR_AnnotationDefault                    = 25,

    METHOD_ATTR_MethodParameters                     = 26,

    CODE_ATTR_StackMapTable          = 0,

    CODE_ATTR_LineNumberTable        = 1,

    CODE_ATTR_LocalVariableTable     = 2,

    CODE_ATTR_LocalVariableTypeTable = 3,

    //X_ATTR_Synthetic = 12,  // ACC_SYNTHETIC; not predefined

    X_ATTR_Signature                   = 19,

    X_ATTR_Deprecated                  = 20,

    X_ATTR_RuntimeVisibleAnnotations   = 21,

    X_ATTR_RuntimeInvisibleAnnotations = 22,

    X_ATTR_RuntimeVisibleTypeAnnotations   = 27,

    X_ATTR_RuntimeInvisibleTypeAnnotations = 28,

    X_ATTR_OVERFLOW                    = 16,

    X_ATTR_LIMIT_NO_FLAGS_HI           = 32,

    X_ATTR_LIMIT_FLAGS_HI              = 63,

#define O_ATTR_DO(F) \

        F(X_ATTR_OVERFLOW,01) \

          /*(end)*/

#define X_ATTR_DO(F) \

        O_ATTR_DO(F) \

        F(X_ATTR_Signature,Signature) \

        F(X_ATTR_Deprecated,Deprecated) \

        F(X_ATTR_RuntimeVisibleAnnotations,RuntimeVisibleAnnotations) \

        F(X_ATTR_RuntimeInvisibleAnnotations,RuntimeInvisibleAnnotations) \

        F(X_ATTR_RuntimeVisibleTypeAnnotations,RuntimeVisibleTypeAnnotations) \

        F(X_ATTR_RuntimeInvisibleTypeAnnotations,RuntimeInvisibleTypeAnnotations) \

        /*F(X_ATTR_Synthetic,Synthetic)*/ \

          /*(end)*/

#define CLASS_ATTR_DO(F) \

        F(CLASS_ATTR_SourceFile,SourceFile) \

        F(CLASS_ATTR_InnerClasses,InnerClasses) \

        F(CLASS_ATTR_EnclosingMethod,EnclosingMethod) \

        F(CLASS_ATTR_ClassFile_version,02) \

        F(CLASS_ATTR_BootstrapMethods,BootstrapMethods) \

          /*(end)*/

#define FIELD_ATTR_DO(F) \

        F(FIELD_ATTR_ConstantValue,ConstantValue) \

          /*(end)*/

#define METHOD_ATTR_DO(F) \

        F(METHOD_ATTR_Code,Code) \

        F(METHOD_ATTR_Exceptions,Exceptions) \

        F(METHOD_ATTR_RuntimeVisibleParameterAnnotations,RuntimeVisibleParameterAnnotations) \

        F(METHOD_ATTR_RuntimeInvisibleParameterAnnotations,RuntimeInvisibleParameterAnnotations) \

        F(METHOD_ATTR_AnnotationDefault,AnnotationDefault) \

        F(METHOD_ATTR_MethodParameters,MethodParameters) \

          /*(end)*/

#define CODE_ATTR_DO(F) \

        F(CODE_ATTR_StackMapTable,StackMapTable) \

        F(CODE_ATTR_LineNumberTable,LineNumberTable) \

        F(CODE_ATTR_LocalVariableTable,LocalVariableTable) \

        F(CODE_ATTR_LocalVariableTypeTable,LocalVariableTypeTable) \

          /*(end)*/

#define ALL_ATTR_DO(F) \

        X_ATTR_DO(F) \

        CLASS_ATTR_DO(F) \

        FIELD_ATTR_DO(F) \

        METHOD_ATTR_DO(F) \

        CODE_ATTR_DO(F) \

          /*(end)*/

    // attribute "context types"

    ATTR_CONTEXT_CLASS  = 0,

    ATTR_CONTEXT_FIELD  = 1,

    ATTR_CONTEXT_METHOD = 2,

    ATTR_CONTEXT_CODE   = 3,

    ATTR_CONTEXT_LIMIT  = 4,

    // constants for parsed layouts (stored in band::le_kind)

    EK_NONE = 0,     // not a layout element

    EK_INT  = 'I',   // B H I SH etc., also FH etc.

    EK_BCI  = 'P',   // PH etc.

    EK_BCID = 'Q',   // POH etc.

    EK_BCO  = 'O',   // OH etc.

    EK_REPL = 'N',   // NH[...] etc.

    EK_REF  = 'R',   // RUH, RUNH, KQH, etc.

    EK_UN   = 'T',   // TB(...)[...] etc.

    EK_CASE = 'K',   // (...)[...] etc.

    EK_CALL = '(',   // (0), (1), etc.

    EK_CBLE = '[',   // [...][...] etc.

    NO_BAND_INDEX = -1,

    // File option bits, from LSB in ascending bit position.

    FO_DEFLATE_HINT           = 1<<0,

    FO_IS_CLASS_STUB          = 1<<1,

    // Archive option bits, from LSB in ascending bit position:

    AO_HAVE_SPECIAL_FORMATS   = 1<<0,

    AO_HAVE_CP_NUMBERS        = 1<<1,

    AO_HAVE_ALL_CODE_FLAGS    = 1<<2,

    AO_HAVE_CP_EXTRAS         = 1<<3,

    AO_HAVE_FILE_HEADERS      = 1<<4,

    AO_DEFLATE_HINT           = 1<<5,

    AO_HAVE_FILE_MODTIME      = 1<<6,

    AO_HAVE_FILE_OPTIONS      = 1<<7,

    AO_HAVE_FILE_SIZE_HI      = 1<<8,

    AO_HAVE_CLASS_FLAGS_HI    = 1<<9,

    AO_HAVE_FIELD_FLAGS_HI    = 1<<10,

    AO_HAVE_METHOD_FLAGS_HI   = 1<<11,

    AO_HAVE_CODE_FLAGS_HI     = 1<<12,

    AO_UNUSED_MBZ             = (int)((~0U)<<13), // options bits reserved for future use.

#define ARCHIVE_BIT_DO(F) \

         F(AO_HAVE_SPECIAL_FORMATS) \

         F(AO_HAVE_CP_NUMBERS) \

         F(AO_HAVE_ALL_CODE_FLAGS) \

         F(AO_HAVE_CP_EXTRAS) \

         F(AO_HAVE_FILE_HEADERS) \

         F(AO_DEFLATE_HINT) \

         F(AO_HAVE_FILE_MODTIME) \

         F(AO_HAVE_FILE_OPTIONS) \

         F(AO_HAVE_FILE_SIZE_HI) \

         F(AO_HAVE_CLASS_FLAGS_HI) \

         F(AO_HAVE_FIELD_FLAGS_HI) \

         F(AO_HAVE_METHOD_FLAGS_HI) \

         F(AO_HAVE_CODE_FLAGS_HI) \

          /*(end)*/

    // Constants for decoding attribute definition header bytes.

    ADH_CONTEXT_MASK   = 0x3,  // (hdr & ADH_CONTEXT_MASK)

    ADH_BIT_SHIFT      = 0x2,  // (hdr >> ADH_BIT_SHIFT)

    ADH_BIT_IS_LSB     = 1,    // (hdr >> ADH_BIT_SHIFT) - ADH_BIT_IS_LSB

#define ADH_BYTE(context, index) \

        ((((index) + ADH_BIT_IS_LSB)<<ADH_BIT_SHIFT) + (context))

#define ADH_BYTE_CONTEXT(adhb) \

        ((adhb) & ADH_CONTEXT_MASK)

#define ADH_BYTE_INDEX(adhb) \

        (((adhb) >> ADH_BIT_SHIFT) - ADH_BIT_IS_LSB)

    NO_MODTIME = 0,  // null modtime value

    // meta-coding

    _meta_default   = 0,

    _meta_canon_min = 1,

    _meta_canon_max = 115,

    _meta_arb       = 116,

    _meta_run       = 117,

    _meta_pop       = 141,

    _meta_limit     = 189,

    _meta_error     = 255,

    _xxx_1_end

};

// Bytecodes.

enum {

  bc_nop                  =   0, // 0x00

  bc_aconst_null          =   1, // 0x01

  bc_iconst_m1            =   2, // 0x02

  bc_iconst_0             =   3, // 0x03

  bc_iconst_1             =   4, // 0x04

  bc_iconst_2             =   5, // 0x05

  bc_iconst_3             =   6, // 0x06

  bc_iconst_4             =   7, // 0x07

  bc_iconst_5             =   8, // 0x08

  bc_lconst_0             =   9, // 0x09

  bc_lconst_1             =  10, // 0x0a

  bc_fconst_0             =  11, // 0x0b

  bc_fconst_1             =  12, // 0x0c

  bc_fconst_2             =  13, // 0x0d

  bc_dconst_0             =  14, // 0x0e

  bc_dconst_1             =  15, // 0x0f

  bc_bipush               =  16, // 0x10

  bc_sipush               =  17, // 0x11

  bc_ldc                  =  18, // 0x12

  bc_ldc_w                =  19, // 0x13

  bc_ldc2_w               =  20, // 0x14

  bc_iload                =  21, // 0x15

  bc_lload                =  22, // 0x16

  bc_fload                =  23, // 0x17

  bc_dload                =  24, // 0x18

  bc_aload                =  25, // 0x19

  bc_iload_0              =  26, // 0x1a

  bc_iload_1              =  27, // 0x1b

  bc_iload_2              =  28, // 0x1c

  bc_iload_3              =  29, // 0x1d

  bc_lload_0              =  30, // 0x1e

  bc_lload_1              =  31, // 0x1f

  bc_lload_2              =  32, // 0x20

  bc_lload_3              =  33, // 0x21

  bc_fload_0              =  34, // 0x22

  bc_fload_1              =  35, // 0x23

  bc_fload_2              =  36, // 0x24

  bc_fload_3              =  37, // 0x25

  bc_dload_0              =  38, // 0x26

  bc_dload_1              =  39, // 0x27

  bc_dload_2              =  40, // 0x28

  bc_dload_3              =  41, // 0x29

  bc_aload_0              =  42, // 0x2a

  bc_aload_1              =  43, // 0x2b

  bc_aload_2              =  44, // 0x2c

  bc_aload_3              =  45, // 0x2d

  bc_iaload               =  46, // 0x2e

  bc_laload               =  47, // 0x2f

  bc_faload               =  48, // 0x30

  bc_daload               =  49, // 0x31

  bc_aaload               =  50, // 0x32

  bc_baload               =  51, // 0x33

  bc_caload               =  52, // 0x34

  bc_saload               =  53, // 0x35

  bc_istore               =  54, // 0x36

  bc_lstore               =  55, // 0x37

  bc_fstore               =  56, // 0x38

  bc_dstore               =  57, // 0x39

  bc_astore               =  58, // 0x3a

  bc_istore_0             =  59, // 0x3b

  bc_istore_1             =  60, // 0x3c

  bc_istore_2             =  61, // 0x3d

  bc_istore_3             =  62, // 0x3e

  bc_lstore_0             =  63, // 0x3f

  bc_lstore_1             =  64, // 0x40

  bc_lstore_2             =  65, // 0x41

  bc_lstore_3             =  66, // 0x42

  bc_fstore_0             =  67, // 0x43

  bc_fstore_1             =  68, // 0x44

  bc_fstore_2             =  69, // 0x45

  bc_fstore_3             =  70, // 0x46

  bc_dstore_0             =  71, // 0x47

  bc_dstore_1             =  72, // 0x48

  bc_dstore_2             =  73, // 0x49

  bc_dstore_3             =  74, // 0x4a

  bc_astore_0             =  75, // 0x4b

  bc_astore_1             =  76, // 0x4c

  bc_astore_2             =  77, // 0x4d

  bc_astore_3             =  78, // 0x4e

  bc_iastore              =  79, // 0x4f

  bc_lastore              =  80, // 0x50

  bc_fastore              =  81, // 0x51

  bc_dastore              =  82, // 0x52

  bc_aastore              =  83, // 0x53

  bc_bastore              =  84, // 0x54

  bc_castore              =  85, // 0x55

  bc_sastore              =  86, // 0x56

  bc_pop                  =  87, // 0x57

  bc_pop2                 =  88, // 0x58

  bc_dup                  =  89, // 0x59

  bc_dup_x1               =  90, // 0x5a

  bc_dup_x2               =  91, // 0x5b

  bc_dup2                 =  92, // 0x5c

  bc_dup2_x1              =  93, // 0x5d

  bc_dup2_x2              =  94, // 0x5e

  bc_swap                 =  95, // 0x5f

  bc_iadd                 =  96, // 0x60

  bc_ladd                 =  97, // 0x61

  bc_fadd                 =  98, // 0x62

  bc_dadd                 =  99, // 0x63

  bc_isub                 = 100, // 0x64

  bc_lsub                 = 101, // 0x65

  bc_fsub                 = 102, // 0x66

  bc_dsub                 = 103, // 0x67

  bc_imul                 = 104, // 0x68

  bc_lmul                 = 105, // 0x69

  bc_fmul                 = 106, // 0x6a

  bc_dmul                 = 107, // 0x6b

  bc_idiv                 = 108, // 0x6c

  bc_ldiv                 = 109, // 0x6d

  bc_fdiv                 = 110, // 0x6e

  bc_ddiv                 = 111, // 0x6f

  bc_irem                 = 112, // 0x70

  bc_lrem                 = 113, // 0x71

  bc_frem                 = 114, // 0x72

  bc_drem                 = 115, // 0x73

  bc_ineg                 = 116, // 0x74

  bc_lneg                 = 117, // 0x75

  bc_fneg                 = 118, // 0x76

  bc_dneg                 = 119, // 0x77

  bc_ishl                 = 120, // 0x78

  bc_lshl                 = 121, // 0x79

  bc_ishr                 = 122, // 0x7a

  bc_lshr                 = 123, // 0x7b

  bc_iushr                = 124, // 0x7c

  bc_lushr                = 125, // 0x7d

  bc_iand                 = 126, // 0x7e

  bc_land                 = 127, // 0x7f

  bc_ior                  = 128, // 0x80

  bc_lor                  = 129, // 0x81

  bc_ixor                 = 130, // 0x82

  bc_lxor                 = 131, // 0x83

  bc_iinc                 = 132, // 0x84

  bc_i2l                  = 133, // 0x85

  bc_i2f                  = 134, // 0x86

  bc_i2d                  = 135, // 0x87

  bc_l2i                  = 136, // 0x88

  bc_l2f                  = 137, // 0x89

  bc_l2d                  = 138, // 0x8a

  bc_f2i                  = 139, // 0x8b

  bc_f2l                  = 140, // 0x8c

  bc_f2d                  = 141, // 0x8d

  bc_d2i                  = 142, // 0x8e

  bc_d2l                  = 143, // 0x8f

  bc_d2f                  = 144, // 0x90

  bc_i2b                  = 145, // 0x91

  bc_i2c                  = 146, // 0x92

  bc_i2s                  = 147, // 0x93

  bc_lcmp                 = 148, // 0x94

  bc_fcmpl                = 149, // 0x95

  bc_fcmpg                = 150, // 0x96

  bc_dcmpl                = 151, // 0x97

  bc_dcmpg                = 152, // 0x98

  bc_ifeq                 = 153, // 0x99

  bc_ifne                 = 154, // 0x9a

  bc_iflt                 = 155, // 0x9b

  bc_ifge                 = 156, // 0x9c

  bc_ifgt                 = 157, // 0x9d

  bc_ifle                 = 158, // 0x9e

  bc_if_icmpeq            = 159, // 0x9f

  bc_if_icmpne            = 160, // 0xa0

  bc_if_icmplt            = 161, // 0xa1

  bc_if_icmpge            = 162, // 0xa2

  bc_if_icmpgt            = 163, // 0xa3

  bc_if_icmple            = 164, // 0xa4

  bc_if_acmpeq            = 165, // 0xa5

  bc_if_acmpne            = 166, // 0xa6

  bc_goto                 = 167, // 0xa7

  bc_jsr                  = 168, // 0xa8

  bc_ret                  = 169, // 0xa9

  bc_tableswitch          = 170, // 0xaa

  bc_lookupswitch         = 171, // 0xab

  bc_ireturn              = 172, // 0xac

  bc_lreturn              = 173, // 0xad

  bc_freturn              = 174, // 0xae

  bc_dreturn              = 175, // 0xaf

  bc_areturn              = 176, // 0xb0

  bc_return               = 177, // 0xb1

  bc_getstatic            = 178, // 0xb2

  bc_putstatic            = 179, // 0xb3

  bc_getfield             = 180, // 0xb4

  bc_putfield             = 181, // 0xb5

  bc_invokevirtual        = 182, // 0xb6

  bc_invokespecial        = 183, // 0xb7

  bc_invokestatic         = 184, // 0xb8

  bc_invokeinterface      = 185, // 0xb9

  bc_invokedynamic        = 186, // 0xba

  bc_new                  = 187, // 0xbb

  bc_newarray             = 188, // 0xbc

  bc_anewarray            = 189, // 0xbd

  bc_arraylength          = 190, // 0xbe

  bc_athrow               = 191, // 0xbf

  bc_checkcast            = 192, // 0xc0

  bc_instanceof           = 193, // 0xc1

  bc_monitorenter         = 194, // 0xc2

  bc_monitorexit          = 195, // 0xc3

  bc_wide                 = 196, // 0xc4

  bc_multianewarray       = 197, // 0xc5

  bc_ifnull               = 198, // 0xc6

  bc_ifnonnull            = 199, // 0xc7

  bc_goto_w               = 200, // 0xc8

  bc_jsr_w                = 201, // 0xc9

  bc_bytecode_limit       = 202  // 0xca

};

enum {

  bc_end_marker = 255,

  bc_byte_escape = 254,

  bc_ref_escape = 253,

  _first_linker_op = bc_getstatic,

  _last_linker_op  = bc_invokestatic,

  _num_linker_ops  = (_last_linker_op - _first_linker_op) + 1,

  _self_linker_op  = bc_bytecode_limit,

  _self_linker_aload_flag = 1*_num_linker_ops,

  _self_linker_super_flag = 2*_num_linker_ops,

  _self_linker_limit = _self_linker_op + 4*_num_linker_ops,

  _invokeinit_op = _self_linker_limit,

  _invokeinit_self_option = 0,

  _invokeinit_super_option = 1,

  _invokeinit_new_option = 2,

  _invokeinit_limit = _invokeinit_op+3,

  _xldc_op = _invokeinit_limit,

  bc_sldc = bc_ldc,      // previously named bc_aldc

  bc_cldc = _xldc_op+0,

  bc_ildc = _xldc_op+1,

  bc_fldc = _xldc_op+2,

  bc_sldc_w = bc_ldc_w,  // previously named bc_aldc_w

  bc_cldc_w = _xldc_op+3,

  bc_ildc_w = _xldc_op+4,

  bc_fldc_w = _xldc_op+5,

  bc_lldc2_w = bc_ldc2_w,

  bc_dldc2_w = _xldc_op+6,

  // anything other primitive, string, or class must be handled with qldc:

  bc_qldc    = _xldc_op+7,

  bc_qldc_w  = _xldc_op+8,

  _xldc_limit = _xldc_op+9,

  _invoke_int_op = _xldc_limit,

  _invokespecial_int = _invoke_int_op+0,

  _invokestatic_int = _invoke_int_op+1,

  _invoke_int_limit =  _invoke_int_op+2,

  _xxx_3_end

};