src/v8abbr.h

   1 /** Copyright Joyent, Inc. and other Node contributors.
   2 *
   3 * Permission is hereby granted, free of charge, to any person obtaining a
   4 * copy of this software and associated documentation files (the
   5 * "Software"), to deal in the Software without restriction, including
   6 * without limitation the rights to use, copy, modify, merge, publish,
   7 * distribute, sublicense, and/or sell copies of the Software, and to permit
   8 * persons to whom the Software is furnished to do so, subject to the
   9 * following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included
  12 * in all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
  17 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21 */
  22
  23 /*
  24  * This header defines short names for V8 constants for use by the ustack
  25  * helper.
  26  */
  27
  28 #ifndef SRC_V8ABBR_H_
  29 #define SRC_V8ABBR_H_
  30
  31 /* Frame pointer offsets */
  32 #define V8_OFF_FP_FUNC              V8DBG_OFF_FP_FUNCTION
  33 #define V8_OFF_FP_CONTEXT           V8DBG_OFF_FP_CONTEXT
  34 #define V8_OFF_FP_MARKER            V8DBG_OFF_FP_MARKER
  35
  36 /* Stack frame types */
  37 #define V8_FT_ENTRY                 V8DBG_FRAMETYPE_ENTRYFRAME
  38 #define V8_FT_ENTRYCONSTRUCT        V8DBG_FRAMETYPE_ENTRYCONSTRUCTFRAME
  39 #define V8_FT_EXIT                  V8DBG_FRAMETYPE_EXITFRAME
  40 #define V8_FT_JAVASCRIPT            V8DBG_FRAMETYPE_JAVASCRIPTFRAME
  41 #define V8_FT_OPTIMIZED             V8DBG_FRAMETYPE_OPTIMIZEDFRAME
  42 #define V8_FT_INTERNAL              V8DBG_FRAMETYPE_INTERNALFRAME
  43 #define V8_FT_CONSTRUCT             V8DBG_FRAMETYPE_CONSTRUCTFRAME
  44 #define V8_FT_ADAPTOR               V8DBG_FRAMETYPE_ARGUMENTSADAPTORFRAME
  45 #define V8_FT_STUB                  V8DBG_FRAMETYPE_STUBFRAME
  46
  47 /* Identification masks and tags */
  48 #define V8_SmiTagMask               (V8DBG_SMITAGMASK)
  49 #define V8_SmiTag                   (V8DBG_SMITAG)
  50 #define V8_SmiValueShift            (V8DBG_SMISHIFTSIZE + V8DBG_SMITAGMASK)
  51
  52 #define V8_HeapObjectTagMask        V8DBG_HEAPOBJECTTAGMASK
  53 #define V8_HeapObjectTag            V8DBG_HEAPOBJECTTAG
  54
  55 #define V8_IsNotStringMask          V8DBG_ISNOTSTRINGMASK
  56 #define V8_StringTag                V8DBG_STRINGTAG
  57
  58 #define V8_StringEncodingMask       V8DBG_STRINGENCODINGMASK
  59 #define V8_AsciiStringTag           V8DBG_ASCIISTRINGTAG
  60
  61 #define V8_StringRepresentationMask V8DBG_STRINGREPRESENTATIONMASK
  62 #define V8_SeqStringTag             V8DBG_SEQSTRINGTAG
  63 #define V8_ConsStringTag            V8DBG_CONSSTRINGTAG
  64 #define V8_ExternalStringTag        V8DBG_EXTERNALSTRINGTAG
  65
  66 /* Instance types */
  67 #define V8_IT_FIXEDARRAY            V8DBG_TYPE_FIXEDARRAY__FIXED_ARRAY_TYPE
  68 #define V8_IT_CODE                  V8DBG_TYPE_CODE__CODE_TYPE
  69 #define V8_IT_SCRIPT                V8DBG_TYPE_SCRIPT__SCRIPT_TYPE
  70
  71 /* Node-specific offsets */
  72 #define NODE_OFF_EXTSTR_DATA        sizeof(void*)
  73
  74 /*
  75  * Not all versions of V8 have the offset for the "chars" array in the
  76  * SeqTwoByteString class, but it's the same as the one for SeqOneByteString.
  77  */
  78 #ifndef V8DBG_CLASS_SEQTWOBYTESTRING__CHARS__CHAR
  79 #define V8DBG_CLASS_SEQTWOBYTESTRING__CHARS__CHAR V8DBG_CLASS_SEQONEBYTESTRING__CHARS__CHAR
  80 #endif
  81
  82 /* Heap class->field offsets */
  83 #define V8_OFF_HEAP(off)            ((off) - 1)
  84
  85 #define V8_OFF_FUNC_SHARED  \
  86     V8_OFF_HEAP(V8DBG_CLASS_JSFUNCTION__SHARED__SHAREDFUNCTIONINFO)
  87 #define V8_OFF_SHARED_NAME  \
  88     V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__NAME__OBJECT)
  89 #define V8_OFF_SHARED_INFERRED  \
  90     V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__INFERRED_NAME__STRING)
  91 #define V8_OFF_SHARED_SCRIPT  \
  92     V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__SCRIPT__OBJECT)
  93 #define V8_OFF_SHARED_FUNTOK  \
  94     V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__FUNCTION_TOKEN_POSITION__SMI)
  95 #define V8_OFF_SCRIPT_NAME  \
  96     V8_OFF_HEAP(V8DBG_CLASS_SCRIPT__NAME__OBJECT)
  97 #define V8_OFF_SCRIPT_LENDS \
  98     V8_OFF_HEAP(V8DBG_CLASS_SCRIPT__LINE_ENDS__OBJECT)
  99 #define V8_OFF_STR_LENGTH \
 100     V8_OFF_HEAP(V8DBG_CLASS_STRING__LENGTH__SMI)
 101 #define V8_OFF_STR_CHARS  \
 102     V8_OFF_HEAP(V8DBG_CLASS_SEQONEBYTESTRING__CHARS__CHAR)
 103 #define V8_OFF_CONSSTR_CAR  \
 104     V8_OFF_HEAP(V8DBG_CLASS_CONSSTRING__FIRST__STRING)
 105 #define V8_OFF_CONSSTR_CDR  \
 106     V8_OFF_HEAP(V8DBG_CLASS_CONSSTRING__SECOND__STRING)
 107 #define V8_OFF_EXTSTR_RSRC  \
 108     V8_OFF_HEAP(V8DBG_CLASS_EXTERNALSTRING__RESOURCE__OBJECT)
 109 #define V8_OFF_FA_SIZE    \
 110     V8_OFF_HEAP(V8DBG_CLASS_FIXEDARRAYBASE__LENGTH__SMI)
 111 #define V8_OFF_FA_DATA    \
 112     V8_OFF_HEAP(V8DBG_CLASS_FIXEDARRAY__DATA__UINTPTR_T)
 113 #define V8_OFF_HEAPOBJ_MAP  \
 114     V8_OFF_HEAP(V8DBG_CLASS_HEAPOBJECT__MAP__MAP)
 115 #define V8_OFF_MAP_ATTRS  \
 116     V8_OFF_HEAP(V8DBG_CLASS_MAP__INSTANCE_ATTRIBUTES__INT)
 117 #define V8_OFF_TWOBYTESTR_CHARS  \
 118     V8_OFF_HEAP(V8DBG_CLASS_SEQTWOBYTESTRING__CHARS__CHAR)
 119
 120 #endif  /* SRC_V8ABBR_H_ */