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Index ⭢ Core ⭢ asmjit::LabelEntry

asmjit::LabelEntry Class Reference

Inheritance diagram for asmjit::LabelEntry:

Label entry.

Contains the following properties:

Label id - This is the only thing that is set to the Label operand.
Label name - Optional, used mostly to create executables and libraries.
Label type - Type of the label, default LabelType::kAnonymous.
Label parent id - Derived from many assemblers that allow to define a local label that falls under a global label. This allows to define many labels of the same name that have different parent (global) label.
Offset - offset of the label bound by Assembler.
Links - single-linked list that contains locations of code that has to be patched when the label gets bound. Every use of unbound label adds one link to _links list.
HVal - Hash value of label's name and optionally parentId.
HashNext - Hash-table implementation detail.

Public Members

Members

LabelType _type

uint8_t _reserved[3]

uint32_t _parentId

uint64_t _offset

Section* _section

LabelLink* _links

ZoneString<kStaticNameSize> _name

Public Attributes inherited from asmjit::ZoneHashNode

Public Types

Constants

enum : uint32_t

Member Functions

Accessors

uint32_t id() const noexcept

void _setId(uint32_t id) noexcept

LabelType type() const noexcept

bool hasParent() const noexcept

uint32_t parentId() const noexcept

Section* section() const noexcept

bool hasName() const noexcept

const char* name() const noexcept

uint32_t nameSize() const noexcept

LabelLink* links() const noexcept

bool isBound() const noexcept

bool isBoundTo(Section* section) const noexcept

uint64_t offset() const noexcept

uint32_t hashCode() const noexcept

Public Member Functions inherited from asmjit::ZoneHashNode

anonymous enum : uint32_t[¶]

Constant	Description
kStaticNameSize	SSO size of _name.

uint32_t LabelEntry::id() constnoexcept[¶]

Returns label id.

void LabelEntry::_setId(
uint32_t id
)noexcept[¶]

Sets label id (internal, used only by CodeHolder).

LabelType LabelEntry::type() constnoexcept[¶]

Returns label type.

bool LabelEntry::hasParent() constnoexcept[¶]

Tests whether the label has a parent label.

uint32_t LabelEntry::parentId() constnoexcept[¶]

Returns label's parent id.

Section* LabelEntry::section() constnoexcept[¶]

Returns the section where the label was bound.

If the label was not yet bound the return value is nullptr.

bool LabelEntry::hasName() constnoexcept[¶]

Tests whether the label has name.

const char* LabelEntry::name() constnoexcept[¶]

Returns the label's name.

Note: Local labels will return their local name without their parent part, for example ".L1".

uint32_t LabelEntry::nameSize() constnoexcept[¶]

Returns size of label's name.

Note: Label name is always null terminated, so you can use strlen() to get it, however, it's also cached in LabelEntry itself, so if you want to know the size the fastest way is to call LabelEntry::nameSize().

LabelLink* LabelEntry::links() constnoexcept[¶]

Returns links associated with this label.

bool LabelEntry::isBound() constnoexcept[¶]

Tests whether the label is bound.

bool LabelEntry::isBoundTo(
Section* section
) constnoexcept[¶]

Tests whether the label is bound to a the given sectionId.

uint64_t LabelEntry::offset() constnoexcept[¶]

Returns the label offset (only useful if the label is bound).

uint32_t LabelEntry::hashCode() constnoexcept[¶]

Returns the hash-value of label's name and its parent label (if any).

Label hash is calculated as HASH(Name) ^ ParentId. The hash function is implemented in Support::hashString() and Support::hashRound().

LabelType LabelEntry::_type[¶]

Type of the label.

uint8_t LabelEntry::_reserved[3][¶]

Must be zero.

uint32_t LabelEntry::_parentId[¶]

Label parent id or zero.

uint64_t LabelEntry::_offset[¶]

Label offset relative to the start of the _section.

Section* LabelEntry::_section[¶]

Section where the label was bound.

LabelLink* LabelEntry::_links[¶]

Label links.

ZoneString<kStaticNameSize>LabelEntry::_name[¶]

Label name.