Struct addr2line::Context

pub struct Context<R: Reader> { /* fields omitted */ }

The state necessary to perform address to line translation.

Constructing a Context is somewhat costly, so users should aim to reuse Contexts when performing lookups for many addresses in the same executable.

Implementations

impl Context<EndianRcSlice<RunTimeEndian>>

pub fn new<'data: 'file, 'file, O: Object<'data, 'file>>(
    file: &'file O
) -> Result<Self, Error>

Construct a new Context.

The resulting Context uses gimli::EndianRcSlice<gimli::RunTimeEndian>. This means it is not thread safe, has no lifetime constraints (since it copies the input data), and works for any endianity.

Performance sensitive applications may want to use Context::from_dwarf with a more specialised gimli::Reader implementation.

pub fn new_with_sup<'data: 'file, 'file, O: Object<'data, 'file>>(
    file: &'file O,
    sup_file: Option<&'file O>
) -> Result<Self, Error>

Construct a new Context.

Optionally also use a supplementary object file.

The resulting Context uses gimli::EndianRcSlice<gimli::RunTimeEndian>. This means it is not thread safe, has no lifetime constraints (since it copies the input data), and works for any endianity.

Performance sensitive applications may want to use Context::from_dwarf_with_sup with a more specialised gimli::Reader implementation.

impl<R: Reader> Context<R>

pub fn from_sections(
    debug_abbrev: DebugAbbrev<R>,
    debug_addr: DebugAddr<R>,
    debug_aranges: DebugAranges<R>,
    debug_info: DebugInfo<R>,
    debug_line: DebugLine<R>,
    debug_line_str: DebugLineStr<R>,
    debug_ranges: DebugRanges<R>,
    debug_rnglists: DebugRngLists<R>,
    debug_str: DebugStr<R>,
    debug_str_offsets: DebugStrOffsets<R>,
    default_section: R
) -> Result<Self, Error>

Construct a new Context from DWARF sections.

This method does not support using a supplementary object file.

pub fn from_dwarf(sections: Dwarf<R>) -> Result<Self, Error>

Construct a new Context from an existing gimli::Dwarf object.

pub fn dwarf(&self) -> &Dwarf<R>

The dwarf sections associated with this Context.

pub fn find_dwarf_unit(&self, probe: u64) -> Option<&Unit<R>>

Find the DWARF unit corresponding to the given virtual memory address.

pub fn find_location(&self, probe: u64) -> Result<Option<Location<'_>>, Error>

Find the source file and line corresponding to the given virtual memory address.

pub fn find_location_range(
    &self,
    probe_low: u64,
    probe_high: u64
) -> Result<LocationRangeIter<'_, R>, Error>

Return source file and lines for a range of addresses. For each location it also returns the address and size of the range of the underlying instructions.

pub fn find_frames(&self, probe: u64) -> Result<FrameIter<'_, R>, Error>

Return an iterator for the function frames corresponding to the given virtual memory address.

If the probe address is not for an inline function then only one frame is returned.

If the probe address is for an inline function then the first frame corresponds to the innermost inline function. Subsequent frames contain the caller and call location, until an non-inline caller is reached.