Struct symbolic::debuginfo::dwarf::gimli::read::FrameDescriptionEntry

pub struct FrameDescriptionEntry<R, Offset = <R as Reader>::Offset>
where
    R: Reader<Offset = Offset>,
    Offset: ReaderOffset,
{ /* private fields */ }

A FrameDescriptionEntry is a set of CFA instructions for an address range.

Implementations

impl<R> FrameDescriptionEntry<R>

where R: Reader,

pub fn rows<'a, 'ctx, Section, A>( &self, section: &'a Section, bases: &'a BaseAddresses, ctx: &'ctx mut UnwindContext<<R as Reader>::Offset, A>, ) -> Result<UnwindTable<'a, 'ctx, R, A>, Error>

where Section: UnwindSection<R>, A: UnwindContextStorage<<R as Reader>::Offset>,

Return the table of unwind information for this FDE.

pub fn unwind_info_for_address<'ctx, Section, A>( &self, section: &Section, bases: &BaseAddresses, ctx: &'ctx mut UnwindContext<<R as Reader>::Offset, A>, address: u64, ) -> Result<&'ctx UnwindTableRow<<R as Reader>::Offset, A>, Error>

where Section: UnwindSection<R>, A: UnwindContextStorage<<R as Reader>::Offset>,

Find the frame unwind information for the given address.

If found, the unwind information is returned along with the reset context in the form Ok((unwind_info, context)). If not found, Err(gimli::Error::NoUnwindInfoForAddress) is returned. If parsing or CFI evaluation fails, the error is returned.

impl<R> FrameDescriptionEntry<R>

where R: Reader,

Signal Safe Methods

These methods are guaranteed not to allocate, acquire locks, or perform any other signal-unsafe operations.

pub fn offset(&self) -> <R as Reader>::Offset

Get the offset of this entry from the start of its containing section.

pub fn cie(&self) -> &CommonInformationEntry<R>

Get a reference to this FDE’s CIE.

pub fn entry_len(&self) -> <R as Reader>::Offset

A constant that gives the number of bytes of the header and instruction stream for this function, not including the length field itself (see Section 7.2.2). The size of the length field plus the value of length must be an integral multiple of the address size.

pub fn instructions<'a, Section>( &self, section: &'a Section, bases: &'a BaseAddresses, ) -> CallFrameInstructionIter<'a, R>

where Section: UnwindSection<R>,

Iterate over this FDE’s instructions.

Will not include the CIE’s initial instructions, if you want those do fde.cie().instructions() first.

Can be used with FallibleIterator.

pub fn initial_address(&self) -> u64

The first address for which this entry has unwind information for.

pub fn len(&self) -> u64

The number of bytes of instructions that this entry has unwind information for.

pub fn contains(&self, address: u64) -> bool

Return true if the given address is within this FDE, false otherwise.

This is equivalent to entry.initial_address() <= address < entry.initial_address() + entry.len().

pub fn lsda(&self) -> Option<Pointer>

The address of this FDE’s language-specific data area (LSDA), if it has any.

pub fn is_signal_trampoline(&self) -> bool

Return true if this FDE’s function is a trampoline for a signal handler.

pub fn personality(&self) -> Option<Pointer>

Return the address of the FDE’s function’s personality routine handler. The personality routine does language-specific clean up when unwinding the stack frames with the intent to not run them again.

Trait Implementations

impl<R, Offset> Clone for FrameDescriptionEntry<R, Offset>

where R: Clone + Reader<Offset = Offset>, Offset: Clone + ReaderOffset,

fn clone(&self) -> FrameDescriptionEntry<R, Offset>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<R, Offset> Debug for FrameDescriptionEntry<R, Offset>

where R: Debug + Reader<Offset = Offset>, Offset: Debug + ReaderOffset,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<R, Offset> PartialEq for FrameDescriptionEntry<R, Offset>

where R: PartialEq + Reader<Offset = Offset>, Offset: PartialEq + ReaderOffset,

fn eq(&self, other: &FrameDescriptionEntry<R, Offset>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<R, Offset> Eq for FrameDescriptionEntry<R, Offset>

where R: Eq + Reader<Offset = Offset>, Offset: Eq + ReaderOffset,

impl<R, Offset> StructuralPartialEq for FrameDescriptionEntry<R, Offset>

where R: Reader<Offset = Offset>, Offset: ReaderOffset,