build: add support for DTrace and postmortem

* fixes #2110
* includes V8 postmortem metadata in Solaris builds
* adds GYP support for DTrace probes and ustack helper
* ustack helper derives constants dynamically from libv8_base.a
* build with DTrace support by default on SunOS

1 files changed, 86 insertions, 0 deletions

diff --git a/src/v8abbr.h b/src/v8abbr.h
new file mode 100644
index 0000000000..ac4a169395
--- /dev/null
+++ b/src/v8abbr.h
@@ -0,0 +1,86 @@
+/*
+ * This header defines short names for V8 constants for use by the ustack
+ * helper.
+ */
+
+#ifndef V8_ABBR_H
+#define V8_ABBR_H
+
+/* Frame pointer offsets */
+#define V8_OFF_FP_FUNC              ((uint32_t)V8DBG_OFF_FP_FUNCTION)
+#define V8_OFF_FP_CONTEXT           ((uint32_t)V8DBG_OFF_FP_CONTEXT)
+#define V8_OFF_FP_MARKER            ((uint32_t)V8DBG_OFF_FP_MARKER)
+
+/* Stack frame types */
+#define V8_FT_ENTRY                 V8DBG_FRAMETYPE_ENTRYFRAME
+#define V8_FT_ENTRYCONSTRUCT        V8DBG_FRAMETYPE_ENTRYCONSTRUCTFRAME
+#define V8_FT_EXIT                  V8DBG_FRAMETYPE_EXITFRAME
+#define V8_FT_JAVASCRIPT            V8DBG_FRAMETYPE_JAVASCRIPTFRAME
+#define V8_FT_OPTIMIZED             V8DBG_FRAMETYPE_OPTIMIZEDFRAME
+#define V8_FT_INTERNAL              V8DBG_FRAMETYPE_INTERNALFRAME
+#define V8_FT_CONSTRUCT             V8DBG_FRAMETYPE_CONSTRUCTFRAME
+#define V8_FT_ADAPTOR               V8DBG_FRAMETYPE_ARGUMENTSADAPTORFRAME
+
+/* Identification masks and tags */
+#define V8_SmiTagMask               V8DBG_SMITAGMASK
+#define V8_SmiTag                   V8DBG_SMITAG
+#define V8_SmiValueShift            V8_SmiTagMask
+
+#define V8_HeapObjectTagMask        V8DBG_HEAPOBJECTTAGMASK
+#define V8_HeapObjectTag            V8DBG_HEAPOBJECTTAG
+
+#define V8_IsNotStringMask          V8DBG_ISNOTSTRINGMASK
+#define V8_StringTag                V8DBG_STRINGTAG
+
+#define V8_StringEncodingMask       V8DBG_STRINGENCODINGMASK
+#define V8_AsciiStringTag           V8DBG_ASCIISTRINGTAG
+
+#define V8_StringRepresentationMask V8DBG_STRINGREPRESENTATIONMASK
+#define V8_SeqStringTag             V8DBG_SEQSTRINGTAG
+#define V8_ConsStringTag            V8DBG_CONSSTRINGTAG
+#define V8_ExternalStringTag        V8DBG_EXTERNALSTRINGTAG
+
+/* Instance types */
+#define V8_IT_FIXEDARRAY            V8DBG_TYPE_FIXEDARRAY__FIXED_ARRAY_TYPE
+#define V8_IT_CODE                  V8DBG_TYPE_CODE__CODE_TYPE
+
+/* Node-specific offsets */
+#define NODE_OFF_EXTSTR_DATA        0x4
+
+/* Heap class->field offsets */
+#define V8_OFF_HEAP(off)            ((off) - 1)
+
+#define V8_OFF_FUNC_SHARED  \
+    V8_OFF_HEAP(V8DBG_CLASS_JSFUNCTION__SHARED__SHAREDFUNCTIONINFO)
+#define V8_OFF_SHARED_NAME  \
+    V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__NAME__OBJECT)
+#define V8_OFF_SHARED_INFERRED  \
+    V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__INFERRED_NAME__STRING)
+#define V8_OFF_SHARED_SCRIPT  \
+    V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__SCRIPT__OBJECT)
+#define V8_OFF_SHARED_FUNTOK  \
+    V8_OFF_HEAP(V8DBG_CLASS_SHAREDFUNCTIONINFO__FUNCTION_TOKEN_POSITION__SMI)
+#define V8_OFF_SCRIPT_NAME  \
+    V8_OFF_HEAP(V8DBG_CLASS_SCRIPT__NAME__OBJECT)
+#define V8_OFF_SCRIPT_LENDS \
+    V8_OFF_HEAP(V8DBG_CLASS_SCRIPT__LINE_ENDS__OBJECT)
+#define V8_OFF_STR_LENGTH \
+    V8_OFF_HEAP(V8DBG_CLASS_STRING__LENGTH__SMI)
+#define V8_OFF_STR_CHARS  \
+    V8_OFF_HEAP(V8DBG_CLASS_SEQASCIISTRING__CHARS__CHAR)
+#define V8_OFF_CONSSTR_CAR  \
+    V8_OFF_HEAP(V8DBG_CLASS_CONSSTRING__FIRST__STRING)
+#define V8_OFF_CONSSTR_CDR  \
+    V8_OFF_HEAP(V8DBG_CLASS_CONSSTRING__SECOND__STRING)
+#define V8_OFF_EXTSTR_RSRC  \
+    V8_OFF_HEAP(V8DBG_CLASS_EXTERNALSTRING__RESOURCE__OBJECT)
+#define V8_OFF_FA_SIZE    \
+    V8_OFF_HEAP(V8DBG_CLASS_FIXEDARRAYBASE__LENGTH__SMI)
+#define V8_OFF_FA_DATA    \
+    V8_OFF_HEAP(V8DBG_CLASS_FIXEDARRAY__DATA__UINTPTR_T)
+#define V8_OFF_HEAPOBJ_MAP  \
+    V8_OFF_HEAP(V8DBG_CLASS_HEAPOBJECT__MAP__MAP)
+#define V8_OFF_MAP_ATTRS  \
+    V8_OFF_HEAP(V8DBG_CLASS_MAP__INSTANCE_ATTRIBUTES__INT)
+
+#endif /* V8_ABBR_H */