dart::VMTag Class Reference

#include <tags.h>

Inheritance diagram for dart::VMTag:

Public Types
enum	VMTagId {   kInvalidTagId = 0 , kNumVMTags , kRootTagId , kTruncatedTagId ,   kNoneCodeTagId , kOptimizedCodeTagId , kUnoptimizedCodeTagId , kNativeCodeTagId ,   kInlineStartCodeTagId , kInlineEndCodeTagId , kLastTagId }

Static Public Member Functions
static bool	IsVMTag (uword id)
static const char *	TagName (uword id)
static bool	IsNativeEntryTag (uword id)
static bool	IsDartTag (uword id)
static bool	IsExitFrameTag (uword id)
static bool	IsRuntimeEntryTag (uword id)
static const char *	RuntimeEntryTagName (uword id)
static void	RegisterRuntimeEntry (RuntimeEntry *runtime_entry)

Detailed Description

Definition at line 35 of file tags.h.

Member Enumeration Documentation

VMTagId

enum dart::VMTag::VMTagId

Enumerator
kInvalidTagId
kNumVMTags
kRootTagId
kTruncatedTagId
kNoneCodeTagId
kOptimizedCodeTagId
kUnoptimizedCodeTagId
kNativeCodeTagId
kInlineStartCodeTagId
kInlineEndCodeTagId
kLastTagId

Definition at line 37 of file tags.h.

               {
    kInvalidTagId = 0,
#define DEFINE_VM_TAG_ID(tag) k##tag##TagId,
    VM_TAG_LIST(DEFINE_VM_TAG_ID)
#undef DEFINE_VM_TAG_KIND
        kNumVMTags,
    //
    // All tags below |kNumVMTags| are special meta-data tags and do not
    // indicate the state of the VM during a sample.
    //
    kRootTagId,       // Special tag used as root of all profiles.
    kTruncatedTagId,  // Special tag used to indicate a truncated call stack.
    // Code transition tags (used by unit tests).
    kNoneCodeTagId,
    kOptimizedCodeTagId,
    kUnoptimizedCodeTagId,
    kNativeCodeTagId,
    kInlineStartCodeTagId,
    kInlineEndCodeTagId,
    kLastTagId,
  };

Member Function Documentation

IsDartTag()

static bool dart::VMTag::IsDartTag ( uword  id )

inlinestatic

Definition at line 64 of file tags.h.

{ return id == kDartTagId; }

IsExitFrameTag()

bool dart::VMTag::IsExitFrameTag ( uword  id )

static

Definition at line 42 of file tags.cc.

                                   {
  return (id != 0) && !IsDartTag(id) && (id != kIdleTagId) &&
         (id != kVMTagId) && (id != kEmbedderTagId);
}

IsNativeEntryTag()

bool dart::VMTag::IsNativeEntryTag ( uword  id )

static

Definition at line 38 of file tags.cc.

                                      {
  return (tag > kLastTagId) && !IsRuntimeEntryTag(tag);
}

IsRuntimeEntryTag()

bool dart::VMTag::IsRuntimeEntryTag ( uword  id )

static

Definition at line 47 of file tags.cc.

                                      {
  return RuntimeEntryTagName(id) != nullptr;
}

IsVMTag()

static bool dart::VMTag::IsVMTag ( uword  id )

inlinestatic

Definition at line 59 of file tags.h.

                                {
    return (id != kInvalidTagId) && (id < kNumVMTags);
  }

RegisterRuntimeEntry()

static void dart::VMTag::RegisterRuntimeEntry ( RuntimeEntry *  runtime_entry )

static

RuntimeEntryTagName()

const char * dart::VMTag::RuntimeEntryTagName ( uword  id )

static

Definition at line 51 of file tags.cc.

                                               {
  const void* address = reinterpret_cast<const void*>(id);
 
#define CHECK_RUNTIME_ADDRESS(n)                                               \
  if (address == k##n##RuntimeEntry.function())                                \
    return k##n##RuntimeEntry.name();
  RUNTIME_ENTRY_LIST(CHECK_RUNTIME_ADDRESS)
#undef CHECK_RUNTIME_ADDRESS
 
#define CHECK_LEAF_RUNTIME_ADDRESS(type, n, ...)                               \
  if (address == k##n##RuntimeEntry.function())                                \
    return k##n##RuntimeEntry.name();
  LEAF_RUNTIME_ENTRY_LIST(CHECK_LEAF_RUNTIME_ADDRESS)
#undef CHECK_LEAF_RUNTIME_ADDRESS
 
  return nullptr;
}

TagName()

const char * dart::VMTag::TagName ( uword  id )

static

Definition at line 19 of file tags.cc.

                                    {
  if (IsNativeEntryTag(tag)) {
    const uint8_t* native_reverse_lookup = NativeEntry::ResolveSymbol(tag);
    if (native_reverse_lookup != nullptr) {
      return reinterpret_cast<const char*>(native_reverse_lookup);
    }
    return "Unknown native entry";
  } else if (IsRuntimeEntryTag(tag)) {
    const char* runtime_entry_name = RuntimeEntryTagName(tag);
    ASSERT(runtime_entry_name != nullptr);
    return runtime_entry_name;
  }
  ASSERT(tag != kInvalidTagId);
  ASSERT(tag < kNumVMTags);
  const TagEntry& entry = entries_[tag];
  ASSERT(entry.id == tag);
  return entry.name;
}

---

The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/tags.h
• third_party/dart-lang/sdk/runtime/vm/tags.cc