Add inlining ranges/intervals to code objects so that we can map a pc to the inlined stack. The map…

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 12239 matching lines @@
   const bool fix_patch = CodePatcher::CodeIsPatchable(*this) &&
                          CodePatcher::IsEntryPatched(*this);
   if (fix_patch) {
     // The disassembler may choke on illegal instructions if the code has been
     // patched, un-patch the code before disassembling and re-patch after.
     CodePatcher::RestoreEntry(*this);
   }
   const Instructions& instr = Instructions::Handle(instructions());
   uword start = instr.EntryPoint();
   if (formatter == NULL) {
-    Disassembler::Disassemble(start, start + instr.size(), comments());
+    Disassembler::Disassemble(start, start + instr.size(), *this);
   } else {
-    Disassembler::Disassemble(start, start + instr.size(), formatter,
-                              comments());
+    Disassembler::Disassemble(start, start + instr.size(), formatter, *this);
   }
   if (fix_patch) {
     // Redo the patch.
     CodePatcher::PatchEntry(*this);
   }
 }
 
 
 const Code::Comments& Code::comments() const  {
   Comments* comments = new Code::Comments(Array::Handle(raw_ptr()->comments_));
   return *comments;
 }
 
 
 void Code::set_comments(const Code::Comments& comments) const {
   ASSERT(comments.comments_.IsOld());
   StorePointer(&raw_ptr()->comments_, comments.comments_.raw());
 }
 
 
+void Code::set_inlined_intervals(const Array& value) const {
+  ASSERT(value.IsOld());
+  StorePointer(&raw_ptr()->inlined_intervals_, value.raw());
+}
+
+
 RawCode* Code::New(intptr_t pointer_offsets_length) {
   if (pointer_offsets_length < 0 || pointer_offsets_length > kMaxElements) {
     // This should be caught before we reach here.
     FATAL1("Fatal error in Code::New: invalid pointer_offsets_length %" Pd "\n",
            pointer_offsets_length);
   }
   ASSERT(Object::code_class() != Class::null());
   Code& result = Code::Handle();
   {
     uword size = Code::InstanceSize(pointer_offsets_length);
@@ skipping 330 matching lines @@
     if (map->PcOffset() == pc_offset) {
       return map->raw();  // We found a stack map for this frame.
     }
   }
   // If the code has stackmaps, it must have them for all safepoints.
   UNREACHABLE();
   return Stackmap::null();
 }
 
 
+void Code::GetInlinedFunctionsAt(
+    intptr_t offset, GrowableArray<Function*>* fs) const {
+  fs->Clear();
+  const Array& intervals = Array::Handle(inlined_intervals());
+  Smi& start = Smi::Handle();
+  Smi& end = Smi::Handle();
+  Function& function = Function::Handle();
+  for (intptr_t i = 0; i < intervals.Length(); i += Code::kInlIntNumEntries) {
+    start ^= intervals.At(i + Code::kInlIntStart);
+    if (!start.IsNull()) {
+      end ^= intervals.At(i + Code::kInlIntEnd);
+      if ((start.Value() <= offset) && (offset < end.Value())) {
+        function ^= intervals.At(i + Code::kInlIntFunction);
+        fs->Add(&Function::ZoneHandle(function.raw()));
+      }
+    }
+  }
+}
+
+
+void Code::DumpInlinedIntervals() const {
+  OS::Print("Inlined intervals:\n");
+  const Array& intervals = Array::Handle(inlined_intervals());
+  Smi& start = Smi::Handle();
+  Smi& end = Smi::Handle();
+  Function& function = Function::Handle();
+  for (intptr_t i = 0; i < intervals.Length(); i += Code::kInlIntNumEntries) {
+    start ^= intervals.At(i + Code::kInlIntStart);
+    if (!start.IsNull()) {
+      end ^= intervals.At(i + Code::kInlIntEnd);
+      function ^= intervals.At(i + Code::kInlIntFunction);
+      OS::Print("%" Pd " .. %" Pd " %s\n",
+          start.Value(), end.Value(), function.ToQualifiedCString());
+    }
+  }
+}
+
+
 RawContext* Context::New(intptr_t num_variables, Heap::Space space) {
   ASSERT(num_variables >= 0);
   ASSERT(Object::context_class() != Class::null());
 
   if (num_variables < 0 || num_variables > kMaxElements) {
     // This should be caught before we reach here.
     FATAL1("Fatal error in Context::New: invalid num_variables %" Pd "\n",
            num_variables);
   }
   Context& result = Context::Handle();
@@ skipping 7940 matching lines @@
   return tag_label.ToCString();
 }
 
 
 void UserTag::PrintJSONImpl(JSONStream* stream, bool ref) const {
   Instance::PrintJSONImpl(stream, ref);
 }
 
 
 }  // namespace dart