Method new

src/binary_analysis/dwarf.rs:263–290

(object: &'file File<'data>)

impl<'file, 'data> DwarfLoader<'file, 'data> {
    pub fn new(object: &'file File<'data>) -> Result<Self, Error> {
        if !object.endianness().is_little_endian() {
            Err(Error::UnexpectedElf(
                "only little endian object files are supported",
            ))?
        }

        let section_layout = SectionLayout::for_object(object)?;

        let dwarf_sections = Arc::new(gimli::DwarfSections::load(|id| {
            load_section(object, &section_layout, id.name())
        })?);
        // Also load `.eh_frame` which may be present in place of `.debug_frame`.
        let eh_frame_section = load_section(object, &section_layout, ".eh_frame")?;

        let dwarf =
            dwarf_sections.borrow(|section| gimli::EndianSlice::new(section, gimli::LittleEndian));
        // SAFETY: erase lifetime. This is fine as `dwarf` will be dropped before `dwarf_sections`.
        let dwarf_transmute =
            unsafe { std::mem::transmute::<Dwarf<ReaderTy<'_>>, Dwarf<ReaderTy<'_>>>(dwarf) };

        Ok(Self {
            section_layout,
            dwarf: dwarf_transmute,
            dwarf_sections,
            eh_frame_section,
        })
    }

    // This returns the correct lifetime instead of the hacked one.
    fn dwarf(&self) -> &Dwarf<ReaderTy<'_>> {