Merging upstream version 1.69.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2417 insertions, 0 deletions

diff --git a/vendor/gimli-0.26.2/examples/dwarfdump.rs b/vendor/gimli-0.26.2/examples/dwarfdump.rs
new file mode 100644
index 000000000..4b61fd572
--- /dev/null
+++ b/vendor/gimli-0.26.2/examples/dwarfdump.rs
@@ -0,0 +1,2417 @@
+// Allow clippy lints when building without clippy.
+#![allow(unknown_lints)]
+
+use fallible_iterator::FallibleIterator;
+use gimli::{Section, UnitHeader, UnitOffset, UnitSectionOffset, UnitType, UnwindSection};
+use object::{Object, ObjectSection, ObjectSymbol};
+use regex::bytes::Regex;
+use std::borrow::{Borrow, Cow};
+use std::cmp::min;
+use std::collections::HashMap;
+use std::env;
+use std::fmt::{self, Debug};
+use std::fs;
+use std::io;
+use std::io::{BufWriter, Write};
+use std::iter::Iterator;
+use std::mem;
+use std::process;
+use std::result;
+use std::sync::{Condvar, Mutex};
+use typed_arena::Arena;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Error {
+    GimliError(gimli::Error),
+    ObjectError(object::read::Error),
+    IoError,
+}
+
+impl fmt::Display for Error {
+    #[inline]
+    fn fmt(&self, f: &mut fmt::Formatter) -> ::std::result::Result<(), fmt::Error> {
+        Debug::fmt(self, f)
+    }
+}
+
+fn writeln_error<W: Write, R: Reader>(
+    w: &mut W,
+    dwarf: &gimli::Dwarf<R>,
+    err: Error,
+    msg: &str,
+) -> io::Result<()> {
+    writeln!(
+        w,
+        "{}: {}",
+        msg,
+        match err {
+            Error::GimliError(err) => dwarf.format_error(err),
+            Error::ObjectError(err) =>
+                format!("{}:{:?}", "An object error occurred while reading", err),
+            Error::IoError => "An I/O error occurred while writing.".to_string(),
+        }
+    )
+}
+
+impl From<gimli::Error> for Error {
+    fn from(err: gimli::Error) -> Self {
+        Error::GimliError(err)
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(_: io::Error) -> Self {
+        Error::IoError
+    }
+}
+
+impl From<object::read::Error> for Error {
+    fn from(err: object::read::Error) -> Self {
+        Error::ObjectError(err)
+    }
+}
+
+pub type Result<T> = result::Result<T, Error>;
+
+fn parallel_output<W, II, F>(w: &mut W, max_workers: usize, iter: II, f: F) -> Result<()>
+where
+    W: Write + Send,
+    F: Sync + Fn(II::Item, &mut Vec<u8>) -> Result<()>,
+    II: IntoIterator,
+    II::IntoIter: Send,
+{
+    struct ParallelOutputState<I, W> {
+        iterator: I,
+        current_worker: usize,
+        result: Result<()>,
+        w: W,
+    }
+
+    let state = Mutex::new(ParallelOutputState {
+        iterator: iter.into_iter().fuse(),
+        current_worker: 0,
+        result: Ok(()),
+        w,
+    });
+    let workers = min(max_workers, num_cpus::get());
+    let mut condvars = Vec::new();
+    for _ in 0..workers {
+        condvars.push(Condvar::new());
+    }
+    {
+        let state_ref = &state;
+        let f_ref = &f;
+        let condvars_ref = &condvars;
+        crossbeam::scope(|scope| {
+            for i in 0..workers {
+                scope.spawn(move |_| {
+                    let mut v = Vec::new();
+                    let mut lock = state_ref.lock().unwrap();
+                    while lock.current_worker != i {
+                        lock = condvars_ref[i].wait(lock).unwrap();
+                    }
+                    loop {
+                        let item = if lock.result.is_ok() {
+                            lock.iterator.next()
+                        } else {
+                            None
+                        };
+                        lock.current_worker = (i + 1) % workers;
+                        condvars_ref[lock.current_worker].notify_one();
+                        mem::drop(lock);
+
+                        let ret = if let Some(item) = item {
+                            v.clear();
+                            f_ref(item, &mut v)
+                        } else {
+                            return;
+                        };
+
+                        lock = state_ref.lock().unwrap();
+                        while lock.current_worker != i {
+                            lock = condvars_ref[i].wait(lock).unwrap();
+                        }
+                        if lock.result.is_ok() {
+                            let ret2 = lock.w.write_all(&v);
+                            if ret.is_err() {
+                                lock.result = ret;
+                            } else {
+                                lock.result = ret2.map_err(Error::from);
+                            }
+                        }
+                    }
+                });
+            }
+        })
+        .unwrap();
+    }
+    state.into_inner().unwrap().result
+}
+
+trait Reader: gimli::Reader<Offset = usize> + Send + Sync {}
+
+impl<'input, Endian> Reader for gimli::EndianSlice<'input, Endian> where
+    Endian: gimli::Endianity + Send + Sync
+{
+}
+
+type RelocationMap = HashMap<usize, object::Relocation>;
+
+fn add_relocations(
+    relocations: &mut RelocationMap,
+    file: &object::File,
+    section: &object::Section,
+) {
+    for (offset64, mut relocation) in section.relocations() {
+        let offset = offset64 as usize;
+        if offset as u64 != offset64 {
+            continue;
+        }
+        let offset = offset as usize;
+        match relocation.kind() {
+            object::RelocationKind::Absolute => {
+                match relocation.target() {
+                    object::RelocationTarget::Symbol(symbol_idx) => {
+                        match file.symbol_by_index(symbol_idx) {
+                            Ok(symbol) => {
+                                let addend =
+                                    symbol.address().wrapping_add(relocation.addend() as u64);
+                                relocation.set_addend(addend as i64);
+                            }
+                            Err(_) => {
+                                eprintln!(
+                                    "Relocation with invalid symbol for section {} at offset 0x{:08x}",
+                                    section.name().unwrap(),
+                                    offset
+                                );
+                            }
+                        }
+                    }
+                    _ => {}
+                }
+                if relocations.insert(offset, relocation).is_some() {
+                    eprintln!(
+                        "Multiple relocations for section {} at offset 0x{:08x}",
+                        section.name().unwrap(),
+                        offset
+                    );
+                }
+            }
+            _ => {
+                eprintln!(
+                    "Unsupported relocation for section {} at offset 0x{:08x}",
+                    section.name().unwrap(),
+                    offset
+                );
+            }
+        }
+    }
+}
+
+/// Apply relocations to addresses and offsets during parsing,
+/// instead of requiring the data to be fully relocated prior
+/// to parsing.
+///
+/// Pros
+/// - allows readonly buffers, we don't need to implement writing of values back to buffers
+/// - potentially allows us to handle addresses and offsets differently
+/// - potentially allows us to add metadata from the relocation (eg symbol names)
+/// Cons
+/// - maybe incomplete
+#[derive(Debug, Clone)]
+struct Relocate<'a, R: gimli::Reader<Offset = usize>> {
+    relocations: &'a RelocationMap,
+    section: R,
+    reader: R,
+}
+
+impl<'a, R: gimli::Reader<Offset = usize>> Relocate<'a, R> {
+    fn relocate(&self, offset: usize, value: u64) -> u64 {
+        if let Some(relocation) = self.relocations.get(&offset) {
+            match relocation.kind() {
+                object::RelocationKind::Absolute => {
+                    if relocation.has_implicit_addend() {
+                        // Use the explicit addend too, because it may have the symbol value.
+                        return value.wrapping_add(relocation.addend() as u64);
+                    } else {
+                        return relocation.addend() as u64;
+                    }
+                }
+                _ => {}
+            }
+        };
+        value
+    }
+}
+
+impl<'a, R: gimli::Reader<Offset = usize>> gimli::Reader for Relocate<'a, R> {
+    type Endian = R::Endian;
+    type Offset = R::Offset;
+
+    fn read_address(&mut self, address_size: u8) -> gimli::Result<u64> {
+        let offset = self.reader.offset_from(&self.section);
+        let value = self.reader.read_address(address_size)?;
+        Ok(self.relocate(offset, value))
+    }
+
+    fn read_length(&mut self, format: gimli::Format) -> gimli::Result<usize> {
+        let offset = self.reader.offset_from(&self.section);
+        let value = self.reader.read_length(format)?;
+        <usize as gimli::ReaderOffset>::from_u64(self.relocate(offset, value as u64))
+    }
+
+    fn read_offset(&mut self, format: gimli::Format) -> gimli::Result<usize> {
+        let offset = self.reader.offset_from(&self.section);
+        let value = self.reader.read_offset(format)?;
+        <usize as gimli::ReaderOffset>::from_u64(self.relocate(offset, value as u64))
+    }
+
+    fn read_sized_offset(&mut self, size: u8) -> gimli::Result<usize> {
+        let offset = self.reader.offset_from(&self.section);
+        let value = self.reader.read_sized_offset(size)?;
+        <usize as gimli::ReaderOffset>::from_u64(self.relocate(offset, value as u64))
+    }
+
+    #[inline]
+    fn split(&mut self, len: Self::Offset) -> gimli::Result<Self> {
+        let mut other = self.clone();
+        other.reader.truncate(len)?;
+        self.reader.skip(len)?;
+        Ok(other)
+    }
+
+    // All remaining methods simply delegate to `self.reader`.
+
+    #[inline]
+    fn endian(&self) -> Self::Endian {
+        self.reader.endian()
+    }
+
+    #[inline]
+    fn len(&self) -> Self::Offset {
+        self.reader.len()
+    }
+
+    #[inline]
+    fn empty(&mut self) {
+        self.reader.empty()
+    }
+
+    #[inline]
+    fn truncate(&mut self, len: Self::Offset) -> gimli::Result<()> {
+        self.reader.truncate(len)
+    }
+
+    #[inline]
+    fn offset_from(&self, base: &Self) -> Self::Offset {
+        self.reader.offset_from(&base.reader)
+    }
+
+    #[inline]
+    fn offset_id(&self) -> gimli::ReaderOffsetId {
+        self.reader.offset_id()
+    }
+
+    #[inline]
+    fn lookup_offset_id(&self, id: gimli::ReaderOffsetId) -> Option<Self::Offset> {
+        self.reader.lookup_offset_id(id)
+    }
+
+    #[inline]
+    fn find(&self, byte: u8) -> gimli::Result<Self::Offset> {
+        self.reader.find(byte)
+    }
+
+    #[inline]
+    fn skip(&mut self, len: Self::Offset) -> gimli::Result<()> {
+        self.reader.skip(len)
+    }
+
+    #[inline]
+    fn to_slice(&self) -> gimli::Result<Cow<[u8]>> {
+        self.reader.to_slice()
+    }
+
+    #[inline]
+    fn to_string(&self) -> gimli::Result<Cow<str>> {
+        self.reader.to_string()
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> gimli::Result<Cow<str>> {
+        self.reader.to_string_lossy()
+    }
+
+    #[inline]
+    fn read_slice(&mut self, buf: &mut [u8]) -> gimli::Result<()> {
+        self.reader.read_slice(buf)
+    }
+}
+
+impl<'a, R: Reader> Reader for Relocate<'a, R> {}
+
+#[derive(Default)]
+struct Flags<'a> {
+    eh_frame: bool,
+    goff: bool,
+    info: bool,
+    line: bool,
+    pubnames: bool,
+    pubtypes: bool,
+    aranges: bool,
+    dwo: bool,
+    dwp: bool,
+    dwo_parent: Option<object::File<'a>>,
+    sup: Option<object::File<'a>>,
+    raw: bool,
+    match_units: Option<Regex>,
+}
+
+fn print_usage(opts: &getopts::Options) -> ! {
+    let brief = format!("Usage: {} <options> <file>", env::args().next().unwrap());
+    write!(&mut io::stderr(), "{}", opts.usage(&brief)).ok();
+    process::exit(1);
+}
+
+fn main() {
+    let mut opts = getopts::Options::new();
+    opts.optflag(
+        "",
+        "eh-frame",
+        "print .eh-frame exception handling frame information",
+    );
+    opts.optflag("G", "", "show global die offsets");
+    opts.optflag("i", "", "print .debug_info and .debug_types sections");
+    opts.optflag("l", "", "print .debug_line section");
+    opts.optflag("p", "", "print .debug_pubnames section");
+    opts.optflag("r", "", "print .debug_aranges section");
+    opts.optflag("y", "", "print .debug_pubtypes section");
+    opts.optflag(
+        "",
+        "dwo",
+        "print the .dwo versions of the selected sections",
+    );
+    opts.optflag(
+        "",
+        "dwp",
+        "print the .dwp versions of the selected sections",
+    );
+    opts.optopt(
+        "",
+        "dwo-parent",
+        "use the specified file as the parent of the dwo or dwp (e.g. for .debug_addr)",
+        "library path",
+    );
+    opts.optflag("", "raw", "print raw data values");
+    opts.optopt(
+        "u",
+        "match-units",
+        "print compilation units whose output matches a regex",
+        "REGEX",
+    );
+    opts.optopt("", "sup", "path to supplementary object file", "PATH");
+
+    let matches = match opts.parse(env::args().skip(1)) {
+        Ok(m) => m,
+        Err(e) => {
+            writeln!(&mut io::stderr(), "{:?}\n", e).ok();
+            print_usage(&opts);
+        }
+    };
+    if matches.free.is_empty() {
+        print_usage(&opts);
+    }
+
+    let mut all = true;
+    let mut flags = Flags::default();
+    if matches.opt_present("eh-frame") {
+        flags.eh_frame = true;
+        all = false;
+    }
+    if matches.opt_present("G") {
+        flags.goff = true;
+    }
+    if matches.opt_present("i") {
+        flags.info = true;
+        all = false;
+    }
+    if matches.opt_present("l") {
+        flags.line = true;
+        all = false;
+    }
+    if matches.opt_present("p") {
+        flags.pubnames = true;
+        all = false;
+    }
+    if matches.opt_present("y") {
+        flags.pubtypes = true;
+        all = false;
+    }
+    if matches.opt_present("r") {
+        flags.aranges = true;
+        all = false;
+    }
+    if matches.opt_present("dwo") {
+        flags.dwo = true;
+    }
+    if matches.opt_present("dwp") {
+        flags.dwp = true;
+    }
+    if matches.opt_present("raw") {
+        flags.raw = true;
+    }
+    if all {
+        // .eh_frame is excluded even when printing all information.
+        // cosmetic flags like -G must be set explicitly too.
+        flags.info = true;
+        flags.line = true;
+        flags.pubnames = true;
+        flags.pubtypes = true;
+        flags.aranges = true;
+    }
+    flags.match_units = if let Some(r) = matches.opt_str("u") {
+        match Regex::new(&r) {
+            Ok(r) => Some(r),
+            Err(e) => {
+                eprintln!("Invalid regular expression {}: {}", r, e);
+                process::exit(1);
+            }
+        }
+    } else {
+        None
+    };
+
+    let arena_mmap = Arena::new();
+    let load_file = |path| {
+        let file = match fs::File::open(&path) {
+            Ok(file) => file,
+            Err(err) => {
+                eprintln!("Failed to open file '{}': {}", path, err);
+                process::exit(1);
+            }
+        };
+        let mmap = match unsafe { memmap2::Mmap::map(&file) } {
+            Ok(mmap) => mmap,
+            Err(err) => {
+                eprintln!("Failed to map file '{}': {}", path, err);
+                process::exit(1);
+            }
+        };
+        let mmap_ref = (*arena_mmap.alloc(mmap)).borrow();
+        match object::File::parse(&**mmap_ref) {
+            Ok(file) => Some(file),
+            Err(err) => {
+                eprintln!("Failed to parse file '{}': {}", path, err);
+                process::exit(1);
+            }
+        }
+    };
+
+    flags.sup = matches.opt_str("sup").and_then(load_file);
+    flags.dwo_parent = matches.opt_str("dwo-parent").and_then(load_file);
+    if flags.dwo_parent.is_some() && !flags.dwo && !flags.dwp {
+        eprintln!("--dwo-parent also requires --dwo or --dwp");
+        process::exit(1);
+    }
+    if flags.dwo_parent.is_none() && flags.dwp {
+        eprintln!("--dwp also requires --dwo-parent");
+        process::exit(1);
+    }
+
+    for file_path in &matches.free {
+        if matches.free.len() != 1 {
+            println!("{}", file_path);
+            println!();
+        }
+
+        let file = match fs::File::open(&file_path) {
+            Ok(file) => file,
+            Err(err) => {
+                eprintln!("Failed to open file '{}': {}", file_path, err);
+                continue;
+            }
+        };
+        let file = match unsafe { memmap2::Mmap::map(&file) } {
+            Ok(mmap) => mmap,
+            Err(err) => {
+                eprintln!("Failed to map file '{}': {}", file_path, err);
+                continue;
+            }
+        };
+        let file = match object::File::parse(&*file) {
+            Ok(file) => file,
+            Err(err) => {
+                eprintln!("Failed to parse file '{}': {}", file_path, err);
+                continue;
+            }
+        };
+
+        let endian = if file.is_little_endian() {
+            gimli::RunTimeEndian::Little
+        } else {
+            gimli::RunTimeEndian::Big
+        };
+        let ret = dump_file(&file, endian, &flags);
+        match ret {
+            Ok(_) => (),
+            Err(err) => eprintln!("Failed to dump '{}': {}", file_path, err,),
+        }
+    }
+}
+
+fn empty_file_section<'input, 'arena, Endian: gimli::Endianity>(
+    endian: Endian,
+    arena_relocations: &'arena Arena<RelocationMap>,
+) -> Relocate<'arena, gimli::EndianSlice<'arena, Endian>> {
+    let reader = gimli::EndianSlice::new(&[], endian);
+    let section = reader;
+    let relocations = RelocationMap::default();
+    let relocations = (*arena_relocations.alloc(relocations)).borrow();
+    Relocate {
+        relocations,
+        section,
+        reader,
+    }
+}
+
+fn load_file_section<'input, 'arena, Endian: gimli::Endianity>(
+    id: gimli::SectionId,
+    file: &object::File<'input>,
+    endian: Endian,
+    is_dwo: bool,
+    arena_data: &'arena Arena<Cow<'input, [u8]>>,
+    arena_relocations: &'arena Arena<RelocationMap>,
+) -> Result<Relocate<'arena, gimli::EndianSlice<'arena, Endian>>> {
+    let mut relocations = RelocationMap::default();
+    let name = if is_dwo {
+        id.dwo_name()
+    } else {
+        Some(id.name())
+    };
+
+    let data = match name.and_then(|name| file.section_by_name(&name)) {
+        Some(ref section) => {
+            // DWO sections never have relocations, so don't bother.
+            if !is_dwo {
+                add_relocations(&mut relocations, file, section);
+            }
+            section.uncompressed_data()?
+        }
+        // Use a non-zero capacity so that `ReaderOffsetId`s are unique.
+        None => Cow::Owned(Vec::with_capacity(1)),
+    };
+    let data_ref = (*arena_data.alloc(data)).borrow();
+    let reader = gimli::EndianSlice::new(data_ref, endian);
+    let section = reader;
+    let relocations = (*arena_relocations.alloc(relocations)).borrow();
+    Ok(Relocate {
+        relocations,
+        section,
+        reader,
+    })
+}
+
+fn dump_file<Endian>(file: &object::File, endian: Endian, flags: &Flags) -> Result<()>
+where
+    Endian: gimli::Endianity + Send + Sync,
+{
+    let arena_data = Arena::new();
+    let arena_relocations = Arena::new();
+
+    let dwo_parent = if let Some(dwo_parent_file) = flags.dwo_parent.as_ref() {
+        let mut load_dwo_parent_section = |id: gimli::SectionId| -> Result<_> {
+            load_file_section(
+                id,
+                dwo_parent_file,
+                endian,
+                false,
+                &arena_data,
+                &arena_relocations,
+            )
+        };
+        Some(gimli::Dwarf::load(&mut load_dwo_parent_section)?)
+    } else {
+        None
+    };
+    let dwo_parent = dwo_parent.as_ref();
+
+    let dwo_parent_units = if let Some(dwo_parent) = dwo_parent {
+        Some(
+            match dwo_parent
+                .units()
+                .map(|unit_header| dwo_parent.unit(unit_header))
+                .filter_map(|unit| Ok(unit.dwo_id.map(|dwo_id| (dwo_id, unit))))
+                .collect()
+            {
+                Ok(units) => units,
+                Err(err) => {
+                    eprintln!("Failed to process --dwo-parent units: {}", err);
+                    return Ok(());
+                }
+            },
+        )
+    } else {
+        None
+    };
+    let dwo_parent_units = dwo_parent_units.as_ref();
+
+    let mut load_section = |id: gimli::SectionId| -> Result<_> {
+        load_file_section(
+            id,
+            file,
+            endian,
+            flags.dwo || flags.dwp,
+            &arena_data,
+            &arena_relocations,
+        )
+    };
+
+    let w = &mut BufWriter::new(io::stdout());
+    if flags.dwp {
+        let empty = empty_file_section(endian, &arena_relocations);
+        let dwp = gimli::DwarfPackage::load(&mut load_section, empty)?;
+        dump_dwp(w, &dwp, dwo_parent.unwrap(), dwo_parent_units, flags)?;
+        w.flush()?;
+        return Ok(());
+    }
+
+    let mut dwarf = gimli::Dwarf::load(&mut load_section)?;
+    if flags.dwo {
+        dwarf.file_type = gimli::DwarfFileType::Dwo;
+        if let Some(dwo_parent) = dwo_parent {
+            dwarf.debug_addr = dwo_parent.debug_addr.clone();
+            dwarf
+                .ranges
+                .set_debug_ranges(dwo_parent.ranges.debug_ranges().clone());
+        }
+    }
+
+    if let Some(sup_file) = flags.sup.as_ref() {
+        let mut load_sup_section = |id: gimli::SectionId| -> Result<_> {
+            // Note: we really only need the `.debug_str` section,
+            // but for now we load them all.
+            load_file_section(id, sup_file, endian, false, &arena_data, &arena_relocations)
+        };
+        dwarf.load_sup(&mut load_sup_section)?;
+    }
+
+    if flags.eh_frame {
+        let eh_frame = gimli::EhFrame::load(&mut load_section).unwrap();
+        dump_eh_frame(w, file, eh_frame)?;
+    }
+    if flags.info {
+        dump_info(w, &dwarf, dwo_parent_units, flags)?;
+        dump_types(w, &dwarf, dwo_parent_units, flags)?;
+    }
+    if flags.line {
+        dump_line(w, &dwarf)?;
+    }
+    if flags.pubnames {
+        let debug_pubnames = &gimli::Section::load(&mut load_section).unwrap();
+        dump_pubnames(w, debug_pubnames, &dwarf.debug_info)?;
+    }
+    if flags.aranges {
+        let debug_aranges = &gimli::Section::load(&mut load_section).unwrap();
+        dump_aranges(w, debug_aranges)?;
+    }
+    if flags.pubtypes {
+        let debug_pubtypes = &gimli::Section::load(&mut load_section).unwrap();
+        dump_pubtypes(w, debug_pubtypes, &dwarf.debug_info)?;
+    }
+    w.flush()?;
+    Ok(())
+}
+
+fn dump_eh_frame<R: Reader, W: Write>(
+    w: &mut W,
+    file: &object::File,
+    mut eh_frame: gimli::EhFrame<R>,
+) -> Result<()> {
+    // TODO: this might be better based on the file format.
+    let address_size = file
+        .architecture()
+        .address_size()
+        .map(|w| w.bytes())
+        .unwrap_or(mem::size_of::<usize>() as u8);
+    eh_frame.set_address_size(address_size);
+
+    fn register_name_none(_: gimli::Register) -> Option<&'static str> {
+        None
+    }
+    let arch_register_name = match file.architecture() {
+        object::Architecture::Arm | object::Architecture::Aarch64 => gimli::Arm::register_name,
+        object::Architecture::I386 => gimli::X86::register_name,
+        object::Architecture::X86_64 => gimli::X86_64::register_name,
+        _ => register_name_none,
+    };
+    let register_name = &|register| match arch_register_name(register) {
+        Some(name) => Cow::Borrowed(name),
+        None => Cow::Owned(format!("{}", register.0)),
+    };
+
+    let mut bases = gimli::BaseAddresses::default();
+    if let Some(section) = file.section_by_name(".eh_frame_hdr") {
+        bases = bases.set_eh_frame_hdr(section.address());
+    }
+    if let Some(section) = file.section_by_name(".eh_frame") {
+        bases = bases.set_eh_frame(section.address());
+    }
+    if let Some(section) = file.section_by_name(".text") {
+        bases = bases.set_text(section.address());
+    }
+    if let Some(section) = file.section_by_name(".got") {
+        bases = bases.set_got(section.address());
+    }
+
+    // TODO: Print "__eh_frame" here on macOS, and more generally use the
+    // section that we're actually looking at, which is what the canonical
+    // dwarfdump does.
+    writeln!(
+        w,
+        "Exception handling frame information for section .eh_frame"
+    )?;
+
+    let mut cies = HashMap::new();
+
+    let mut entries = eh_frame.entries(&bases);
+    loop {
+        match entries.next()? {
+            None => return Ok(()),
+            Some(gimli::CieOrFde::Cie(cie)) => {
+                writeln!(w)?;
+                writeln!(w, "{:#010x}: CIE", cie.offset())?;
+                writeln!(w, "        length: {:#010x}", cie.entry_len())?;
+                // TODO: CIE_id
+                writeln!(w, "       version: {:#04x}", cie.version())?;
+                // TODO: augmentation
+                writeln!(w, "    code_align: {}", cie.code_alignment_factor())?;
+                writeln!(w, "    data_align: {}", cie.data_alignment_factor())?;
+                writeln!(
+                    w,
+                    "   ra_register: {}",
+                    register_name(cie.return_address_register())
+                )?;
+                if let Some(encoding) = cie.lsda_encoding() {
+                    writeln!(
+                        w,
+                        " lsda_encoding: {}/{}",
+                        encoding.application(),
+                        encoding.format()
+                    )?;
+                }
+                if let Some((encoding, personality)) = cie.personality_with_encoding() {
+                    write!(
+                        w,
+                        "   personality: {}/{} ",
+                        encoding.application(),
+                        encoding.format()
+                    )?;
+                    dump_pointer(w, personality)?;
+                    writeln!(w)?;
+                }
+                if let Some(encoding) = cie.fde_address_encoding() {
+                    writeln!(
+                        w,
+                        "  fde_encoding: {}/{}",
+                        encoding.application(),
+                        encoding.format()
+                    )?;
+                }
+                let instructions = cie.instructions(&eh_frame, &bases);
+                dump_cfi_instructions(w, instructions, true, register_name)?;
+                writeln!(w)?;
+            }
+            Some(gimli::CieOrFde::Fde(partial)) => {
+                let mut offset = None;
+                let fde = partial.parse(|_, bases, o| {
+                    offset = Some(o);
+                    cies.entry(o)
+                        .or_insert_with(|| eh_frame.cie_from_offset(bases, o))
+                        .clone()
+                })?;
+
+                writeln!(w)?;
+                writeln!(w, "{:#010x}: FDE", fde.offset())?;
+                writeln!(w, "        length: {:#010x}", fde.entry_len())?;
+                writeln!(w, "   CIE_pointer: {:#010x}", offset.unwrap().0)?;
+                // TODO: symbolicate the start address like the canonical dwarfdump does.
+                writeln!(w, "    start_addr: {:#018x}", fde.initial_address())?;
+                writeln!(
+                    w,
+                    "    range_size: {:#018x} (end_addr = {:#018x})",
+                    fde.len(),
+                    fde.initial_address() + fde.len()
+                )?;
+                if let Some(lsda) = fde.lsda() {
+                    write!(w, "          lsda: ")?;
+                    dump_pointer(w, lsda)?;
+                    writeln!(w)?;
+                }
+                let instructions = fde.instructions(&eh_frame, &bases);
+                dump_cfi_instructions(w, instructions, false, register_name)?;
+                writeln!(w)?;
+            }
+        }
+    }
+}
+
+fn dump_pointer<W: Write>(w: &mut W, p: gimli::Pointer) -> Result<()> {
+    match p {
+        gimli::Pointer::Direct(p) => {
+            write!(w, "{:#018x}", p)?;
+        }
+        gimli::Pointer::Indirect(p) => {
+            write!(w, "({:#018x})", p)?;
+        }
+    }
+    Ok(())
+}
+
+#[allow(clippy::unneeded_field_pattern)]
+fn dump_cfi_instructions<R: Reader, W: Write>(
+    w: &mut W,
+    mut insns: gimli::CallFrameInstructionIter<R>,
+    is_initial: bool,
+    register_name: &dyn Fn(gimli::Register) -> Cow<'static, str>,
+) -> Result<()> {
+    use gimli::CallFrameInstruction::*;
+
+    // TODO: we need to actually evaluate these instructions as we iterate them
+    // so we can print the initialized state for CIEs, and each unwind row's
+    // registers for FDEs.
+    //
+    // TODO: We should print DWARF expressions for the CFI instructions that
+    // embed DWARF expressions within themselves.
+
+    if !is_initial {
+        writeln!(w, "  Instructions:")?;
+    }
+
+    loop {
+        match insns.next() {
+            Err(e) => {
+                writeln!(w, "Failed to decode CFI instruction: {}", e)?;
+                return Ok(());
+            }
+            Ok(None) => {
+                if is_initial {
+                    writeln!(w, "  Instructions: Init State:")?;
+                }
+                return Ok(());
+            }
+            Ok(Some(op)) => match op {
+                SetLoc { address } => {
+                    writeln!(w, "                DW_CFA_set_loc ({:#x})", address)?;
+                }
+                AdvanceLoc { delta } => {
+                    writeln!(w, "                DW_CFA_advance_loc ({})", delta)?;
+                }
+                DefCfa { register, offset } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_def_cfa ({}, {})",
+                        register_name(register),
+                        offset
+                    )?;
+                }
+                DefCfaSf {
+                    register,
+                    factored_offset,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_def_cfa_sf ({}, {})",
+                        register_name(register),
+                        factored_offset
+                    )?;
+                }
+                DefCfaRegister { register } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_def_cfa_register ({})",
+                        register_name(register)
+                    )?;
+                }
+                DefCfaOffset { offset } => {
+                    writeln!(w, "                DW_CFA_def_cfa_offset ({})", offset)?;
+                }
+                DefCfaOffsetSf { factored_offset } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_def_cfa_offset_sf ({})",
+                        factored_offset
+                    )?;
+                }
+                DefCfaExpression { expression: _ } => {
+                    writeln!(w, "                DW_CFA_def_cfa_expression (...)")?;
+                }
+                Undefined { register } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_undefined ({})",
+                        register_name(register)
+                    )?;
+                }
+                SameValue { register } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_same_value ({})",
+                        register_name(register)
+                    )?;
+                }
+                Offset {
+                    register,
+                    factored_offset,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_offset ({}, {})",
+                        register_name(register),
+                        factored_offset
+                    )?;
+                }
+                OffsetExtendedSf {
+                    register,
+                    factored_offset,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_offset_extended_sf ({}, {})",
+                        register_name(register),
+                        factored_offset
+                    )?;
+                }
+                ValOffset {
+                    register,
+                    factored_offset,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_val_offset ({}, {})",
+                        register_name(register),
+                        factored_offset
+                    )?;
+                }
+                ValOffsetSf {
+                    register,
+                    factored_offset,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_val_offset_sf ({}, {})",
+                        register_name(register),
+                        factored_offset
+                    )?;
+                }
+                Register {
+                    dest_register,
+                    src_register,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_register ({}, {})",
+                        register_name(dest_register),
+                        register_name(src_register)
+                    )?;
+                }
+                Expression {
+                    register,
+                    expression: _,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_expression ({}, ...)",
+                        register_name(register)
+                    )?;
+                }
+                ValExpression {
+                    register,
+                    expression: _,
+                } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_val_expression ({}, ...)",
+                        register_name(register)
+                    )?;
+                }
+                Restore { register } => {
+                    writeln!(
+                        w,
+                        "                DW_CFA_restore ({})",
+                        register_name(register)
+                    )?;
+                }
+                RememberState => {
+                    writeln!(w, "                DW_CFA_remember_state")?;
+                }
+                RestoreState => {
+                    writeln!(w, "                DW_CFA_restore_state")?;
+                }
+                ArgsSize { size } => {
+                    writeln!(w, "                DW_CFA_GNU_args_size ({})", size)?;
+                }
+                Nop => {
+                    writeln!(w, "                DW_CFA_nop")?;
+                }
+            },
+        }
+    }
+}
+
+fn dump_dwp<R: Reader, W: Write + Send>(
+    w: &mut W,
+    dwp: &gimli::DwarfPackage<R>,
+    dwo_parent: &gimli::Dwarf<R>,
+    dwo_parent_units: Option<&HashMap<gimli::DwoId, gimli::Unit<R>>>,
+    flags: &Flags,
+) -> Result<()>
+where
+    R::Endian: Send + Sync,
+{
+    if dwp.cu_index.unit_count() != 0 {
+        writeln!(
+            w,
+            "\n.debug_cu_index: version = {}, sections = {}, units = {}, slots = {}",
+            dwp.cu_index.version(),
+            dwp.cu_index.section_count(),
+            dwp.cu_index.unit_count(),
+            dwp.cu_index.slot_count(),
+        )?;
+        for i in 1..=dwp.cu_index.unit_count() {
+            writeln!(w, "\nCU index {}", i)?;
+            dump_dwp_sections(
+                w,
+                &dwp,
+                dwo_parent,
+                dwo_parent_units,
+                flags,
+                dwp.cu_index.sections(i)?,
+            )?;
+        }
+    }
+
+    if dwp.tu_index.unit_count() != 0 {
+        writeln!(
+            w,
+            "\n.debug_tu_index: version = {}, sections = {}, units = {}, slots = {}",
+            dwp.tu_index.version(),
+            dwp.tu_index.section_count(),
+            dwp.tu_index.unit_count(),
+            dwp.tu_index.slot_count(),
+        )?;
+        for i in 1..=dwp.tu_index.unit_count() {
+            writeln!(w, "\nTU index {}", i)?;
+            dump_dwp_sections(
+                w,
+                &dwp,
+                dwo_parent,
+                dwo_parent_units,
+                flags,
+                dwp.tu_index.sections(i)?,
+            )?;
+        }
+    }
+
+    Ok(())
+}
+
+fn dump_dwp_sections<R: Reader, W: Write + Send>(
+    w: &mut W,
+    dwp: &gimli::DwarfPackage<R>,
+    dwo_parent: &gimli::Dwarf<R>,
+    dwo_parent_units: Option<&HashMap<gimli::DwoId, gimli::Unit<R>>>,
+    flags: &Flags,
+    sections: gimli::UnitIndexSectionIterator<R>,
+) -> Result<()>
+where
+    R::Endian: Send + Sync,
+{
+    for section in sections.clone() {
+        writeln!(
+            w,
+            "  {}: offset = 0x{:x}, size = 0x{:x}",
+            section.section.dwo_name().unwrap(),
+            section.offset,
+            section.size
+        )?;
+    }
+    let dwarf = dwp.sections(sections, dwo_parent)?;
+    if flags.info {
+        dump_info(w, &dwarf, dwo_parent_units, flags)?;
+        dump_types(w, &dwarf, dwo_parent_units, flags)?;
+    }
+    if flags.line {
+        dump_line(w, &dwarf)?;
+    }
+    Ok(())
+}
+
+fn dump_info<R: Reader, W: Write + Send>(
+    w: &mut W,
+    dwarf: &gimli::Dwarf<R>,
+    dwo_parent_units: Option<&HashMap<gimli::DwoId, gimli::Unit<R>>>,
+    flags: &Flags,
+) -> Result<()>
+where
+    R::Endian: Send + Sync,
+{
+    writeln!(w, "\n.debug_info")?;
+
+    let units = match dwarf.units().collect::<Vec<_>>() {
+        Ok(units) => units,
+        Err(err) => {
+            writeln_error(
+                w,
+                dwarf,
+                Error::GimliError(err),
+                "Failed to read unit headers",
+            )?;
+            return Ok(());
+        }
+    };
+    let process_unit = |header: UnitHeader<R>, buf: &mut Vec<u8>| -> Result<()> {
+        dump_unit(buf, header, dwarf, dwo_parent_units, flags)?;
+        if !flags
+            .match_units
+            .as_ref()
+            .map(|r| r.is_match(&buf))
+            .unwrap_or(true)
+        {
+            buf.clear();
+        }
+        Ok(())
+    };
+    // Don't use more than 16 cores even if available. No point in soaking hundreds
+    // of cores if you happen to have them.
+    parallel_output(w, 16, units, process_unit)
+}
+
+fn dump_types<R: Reader, W: Write>(
+    w: &mut W,
+    dwarf: &gimli::Dwarf<R>,
+    dwo_parent_units: Option<&HashMap<gimli::DwoId, gimli::Unit<R>>>,
+    flags: &Flags,
+) -> Result<()> {
+    writeln!(w, "\n.debug_types")?;
+
+    let mut iter = dwarf.type_units();
+    while let Some(header) = iter.next()? {
+        dump_unit(w, header, dwarf, dwo_parent_units, flags)?;
+    }
+    Ok(())
+}
+
+fn dump_unit<R: Reader, W: Write>(
+    w: &mut W,
+    header: UnitHeader<R>,
+    dwarf: &gimli::Dwarf<R>,
+    dwo_parent_units: Option<&HashMap<gimli::DwoId, gimli::Unit<R>>>,
+    flags: &Flags,
+) -> Result<()> {
+    write!(w, "\nUNIT<")?;
+    match header.offset() {
+        UnitSectionOffset::DebugInfoOffset(o) => {
+            write!(w, ".debug_info+0x{:08x}", o.0)?;
+        }
+        UnitSectionOffset::DebugTypesOffset(o) => {
+            write!(w, ".debug_types+0x{:08x}", o.0)?;
+        }
+    }
+    writeln!(w, ">: length = 0x{:x}, format = {:?}, version = {}, address_size = {}, abbrev_offset = 0x{:x}",
+        header.unit_length(),
+        header.format(),
+        header.version(),
+        header.address_size(),
+        header.debug_abbrev_offset().0,
+    )?;
+
+    match header.type_() {
+        UnitType::Compilation | UnitType::Partial => (),
+        UnitType::Type {
+            type_signature,
+            type_offset,
+        }
+        | UnitType::SplitType {
+            type_signature,
+            type_offset,
+        } => {
+            write!(w, "  signature        = ")?;
+            dump_type_signature(w, type_signature)?;
+            writeln!(w)?;
+            writeln!(w, "  type_offset      = 0x{:x}", type_offset.0,)?;
+        }
+        UnitType::Skeleton(dwo_id) | UnitType::SplitCompilation(dwo_id) => {
+            write!(w, "  dwo_id           = ")?;
+            writeln!(w, "0x{:016x}", dwo_id.0)?;
+        }
+    }
+
+    let mut unit = match dwarf.unit(header) {
+        Ok(unit) => unit,
+        Err(err) => {
+            writeln_error(w, dwarf, err.into(), "Failed to parse unit root entry")?;
+            return Ok(());
+        }
+    };
+
+    if let Some(dwo_parent_units) = dwo_parent_units {
+        if let Some(dwo_id) = unit.dwo_id {
+            if let Some(parent_unit) = dwo_parent_units.get(&dwo_id) {
+                unit.copy_relocated_attributes(parent_unit);
+            }
+        }
+    }
+
+    let entries_result = dump_entries(w, unit, dwarf, flags);
+    if let Err(err) = entries_result {
+        writeln_error(w, dwarf, err, "Failed to dump entries")?;
+    }
+    Ok(())
+}
+
+fn spaces(buf: &mut String, len: usize) -> &str {
+    while buf.len() < len {
+        buf.push(' ');
+    }
+    &buf[..len]
+}
+
+// " GOFF=0x{:08x}" adds exactly 16 spaces.
+const GOFF_SPACES: usize = 16;
+
+fn write_offset<R: Reader, W: Write>(
+    w: &mut W,
+    unit: &gimli::Unit<R>,
+    offset: gimli::UnitOffset<R::Offset>,
+    flags: &Flags,
+) -> Result<()> {
+    write!(w, "<0x{:08x}", offset.0)?;
+    if flags.goff {
+        let goff = match offset.to_unit_section_offset(unit) {
+            UnitSectionOffset::DebugInfoOffset(o) => o.0,
+            UnitSectionOffset::DebugTypesOffset(o) => o.0,
+        };
+        write!(w, " GOFF=0x{:08x}", goff)?;
+    }
+    write!(w, ">")?;
+    Ok(())
+}
+
+fn dump_entries<R: Reader, W: Write>(
+    w: &mut W,
+    unit: gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+    flags: &Flags,
+) -> Result<()> {
+    let mut spaces_buf = String::new();
+
+    let mut entries = unit.entries_raw(None)?;
+    while !entries.is_empty() {
+        let offset = entries.next_offset();
+        let depth = entries.next_depth();
+        let abbrev = entries.read_abbreviation()?;
+
+        let mut indent = if depth >= 0 {
+            depth as usize * 2 + 2
+        } else {
+            2
+        };
+        write!(w, "<{}{}>", if depth < 10 { " " } else { "" }, depth)?;
+        write_offset(w, &unit, offset, flags)?;
+        writeln!(
+            w,
+            "{}{}",
+            spaces(&mut spaces_buf, indent),
+            abbrev.map(|x| x.tag()).unwrap_or(gimli::DW_TAG_null)
+        )?;
+
+        indent += 18;
+        if flags.goff {
+            indent += GOFF_SPACES;
+        }
+
+        for spec in abbrev.map(|x| x.attributes()).unwrap_or(&[]) {
+            let attr = entries.read_attribute(*spec)?;
+            w.write_all(spaces(&mut spaces_buf, indent).as_bytes())?;
+            if let Some(n) = attr.name().static_string() {
+                let right_padding = 27 - std::cmp::min(27, n.len());
+                write!(w, "{}{} ", n, spaces(&mut spaces_buf, right_padding))?;
+            } else {
+                write!(w, "{:27} ", attr.name())?;
+            }
+            if flags.raw {
+                writeln!(w, "{:?}", attr.raw_value())?;
+            } else {
+                match dump_attr_value(w, &attr, &unit, dwarf) {
+                    Ok(_) => (),
+                    Err(err) => writeln_error(w, dwarf, err, "Failed to dump attribute value")?,
+                };
+            }
+        }
+    }
+    Ok(())
+}
+
+fn dump_attr_value<R: Reader, W: Write>(
+    w: &mut W,
+    attr: &gimli::Attribute<R>,
+    unit: &gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+) -> Result<()> {
+    let value = attr.value();
+    match value {
+        gimli::AttributeValue::Addr(address) => {
+            writeln!(w, "0x{:08x}", address)?;
+        }
+        gimli::AttributeValue::Block(data) => {
+            for byte in data.to_slice()?.iter() {
+                write!(w, "{:02x}", byte)?;
+            }
+            writeln!(w)?;
+        }
+        gimli::AttributeValue::Data1(_)
+        | gimli::AttributeValue::Data2(_)
+        | gimli::AttributeValue::Data4(_)
+        | gimli::AttributeValue::Data8(_) => {
+            if let (Some(udata), Some(sdata)) = (attr.udata_value(), attr.sdata_value()) {
+                if sdata >= 0 {
+                    writeln!(w, "{}", udata)?;
+                } else {
+                    writeln!(w, "{} ({})", udata, sdata)?;
+                }
+            } else {
+                writeln!(w, "{:?}", value)?;
+            }
+        }
+        gimli::AttributeValue::Sdata(data) => {
+            match attr.name() {
+                gimli::DW_AT_data_member_location => {
+                    writeln!(w, "{}", data)?;
+                }
+                _ => {
+                    if data >= 0 {
+                        writeln!(w, "0x{:08x}", data)?;
+                    } else {
+                        writeln!(w, "0x{:08x} ({})", data, data)?;
+                    }
+                }
+            };
+        }
+        gimli::AttributeValue::Udata(data) => {
+            match attr.name() {
+                gimli::DW_AT_high_pc => {
+                    writeln!(w, "<offset-from-lowpc>{}", data)?;
+                }
+                gimli::DW_AT_data_member_location => {
+                    if let Some(sdata) = attr.sdata_value() {
+                        // This is a DW_FORM_data* value.
+                        // libdwarf-dwarfdump displays this as signed too.
+                        if sdata >= 0 {
+                            writeln!(w, "{}", data)?;
+                        } else {
+                            writeln!(w, "{} ({})", data, sdata)?;
+                        }
+                    } else {
+                        writeln!(w, "{}", data)?;
+                    }
+                }
+                gimli::DW_AT_lower_bound | gimli::DW_AT_upper_bound => {
+                    writeln!(w, "{}", data)?;
+                }
+                _ => {
+                    writeln!(w, "0x{:08x}", data)?;
+                }
+            };
+        }
+        gimli::AttributeValue::Exprloc(ref data) => {
+            if let gimli::AttributeValue::Exprloc(_) = attr.raw_value() {
+                write!(w, "len 0x{:04x}: ", data.0.len())?;
+                for byte in data.0.to_slice()?.iter() {
+                    write!(w, "{:02x}", byte)?;
+                }
+                write!(w, ": ")?;
+            }
+            dump_exprloc(w, unit.encoding(), data)?;
+            writeln!(w)?;
+        }
+        gimli::AttributeValue::Flag(true) => {
+            writeln!(w, "yes")?;
+        }
+        gimli::AttributeValue::Flag(false) => {
+            writeln!(w, "no")?;
+        }
+        gimli::AttributeValue::SecOffset(offset) => {
+            writeln!(w, "0x{:08x}", offset)?;
+        }
+        gimli::AttributeValue::DebugAddrBase(base) => {
+            writeln!(w, "<.debug_addr+0x{:08x}>", base.0)?;
+        }
+        gimli::AttributeValue::DebugAddrIndex(index) => {
+            write!(w, "(indirect address, index {:#x}): ", index.0)?;
+            let address = dwarf.address(unit, index)?;
+            writeln!(w, "0x{:08x}", address)?;
+        }
+        gimli::AttributeValue::UnitRef(offset) => {
+            write!(w, "0x{:08x}", offset.0)?;
+            match offset.to_unit_section_offset(unit) {
+                UnitSectionOffset::DebugInfoOffset(goff) => {
+                    write!(w, "<.debug_info+0x{:08x}>", goff.0)?;
+                }
+                UnitSectionOffset::DebugTypesOffset(goff) => {
+                    write!(w, "<.debug_types+0x{:08x}>", goff.0)?;
+                }
+            }
+            writeln!(w)?;
+        }
+        gimli::AttributeValue::DebugInfoRef(offset) => {
+            writeln!(w, "<.debug_info+0x{:08x}>", offset.0)?;
+        }
+        gimli::AttributeValue::DebugInfoRefSup(offset) => {
+            writeln!(w, "<.debug_info(sup)+0x{:08x}>", offset.0)?;
+        }
+        gimli::AttributeValue::DebugLineRef(offset) => {
+            writeln!(w, "<.debug_line+0x{:08x}>", offset.0)?;
+        }
+        gimli::AttributeValue::LocationListsRef(offset) => {
+            dump_loc_list(w, offset, unit, dwarf)?;
+        }
+        gimli::AttributeValue::DebugLocListsBase(base) => {
+            writeln!(w, "<.debug_loclists+0x{:08x}>", base.0)?;
+        }
+        gimli::AttributeValue::DebugLocListsIndex(index) => {
+            write!(w, "(indirect location list, index {:#x}): ", index.0)?;
+            let offset = dwarf.locations_offset(unit, index)?;
+            dump_loc_list(w, offset, unit, dwarf)?;
+        }
+        gimli::AttributeValue::DebugMacinfoRef(offset) => {
+            writeln!(w, "<.debug_macinfo+0x{:08x}>", offset.0)?;
+        }
+        gimli::AttributeValue::DebugMacroRef(offset) => {
+            writeln!(w, "<.debug_macro+0x{:08x}>", offset.0)?;
+        }
+        gimli::AttributeValue::RangeListsRef(offset) => {
+            let offset = dwarf.ranges_offset_from_raw(unit, offset);
+            dump_range_list(w, offset, unit, dwarf)?;
+        }
+        gimli::AttributeValue::DebugRngListsBase(base) => {
+            writeln!(w, "<.debug_rnglists+0x{:08x}>", base.0)?;
+        }
+        gimli::AttributeValue::DebugRngListsIndex(index) => {
+            write!(w, "(indirect range list, index {:#x}): ", index.0)?;
+            let offset = dwarf.ranges_offset(unit, index)?;
+            dump_range_list(w, offset, unit, dwarf)?;
+        }
+        gimli::AttributeValue::DebugTypesRef(signature) => {
+            dump_type_signature(w, signature)?;
+            writeln!(w, " <type signature>")?;
+        }
+        gimli::AttributeValue::DebugStrRef(offset) => {
+            if let Ok(s) = dwarf.debug_str.get_str(offset) {
+                writeln!(w, "{}", s.to_string_lossy()?)?;
+            } else {
+                writeln!(w, "<.debug_str+0x{:08x}>", offset.0)?;
+            }
+        }
+        gimli::AttributeValue::DebugStrRefSup(offset) => {
+            if let Some(s) = dwarf
+                .sup()
+                .and_then(|sup| sup.debug_str.get_str(offset).ok())
+            {
+                writeln!(w, "{}", s.to_string_lossy()?)?;
+            } else {
+                writeln!(w, "<.debug_str(sup)+0x{:08x}>", offset.0)?;
+            }
+        }
+        gimli::AttributeValue::DebugStrOffsetsBase(base) => {
+            writeln!(w, "<.debug_str_offsets+0x{:08x}>", base.0)?;
+        }
+        gimli::AttributeValue::DebugStrOffsetsIndex(index) => {
+            write!(w, "(indirect string, index {:#x}): ", index.0)?;
+            let offset = dwarf.debug_str_offsets.get_str_offset(
+                unit.encoding().format,
+                unit.str_offsets_base,
+                index,
+            )?;
+            if let Ok(s) = dwarf.debug_str.get_str(offset) {
+                writeln!(w, "{}", s.to_string_lossy()?)?;
+            } else {
+                writeln!(w, "<.debug_str+0x{:08x}>", offset.0)?;
+            }
+        }
+        gimli::AttributeValue::DebugLineStrRef(offset) => {
+            if let Ok(s) = dwarf.debug_line_str.get_str(offset) {
+                writeln!(w, "{}", s.to_string_lossy()?)?;
+            } else {
+                writeln!(w, "<.debug_line_str=0x{:08x}>", offset.0)?;
+            }
+        }
+        gimli::AttributeValue::String(s) => {
+            writeln!(w, "{}", s.to_string_lossy()?)?;
+        }
+        gimli::AttributeValue::Encoding(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::DecimalSign(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Endianity(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Accessibility(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Visibility(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Virtuality(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Language(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::AddressClass(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::IdentifierCase(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::CallingConvention(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Inline(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::Ordering(value) => {
+            writeln!(w, "{}", value)?;
+        }
+        gimli::AttributeValue::FileIndex(value) => {
+            write!(w, "0x{:08x}", value)?;
+            dump_file_index(w, value, unit, dwarf)?;
+            writeln!(w)?;
+        }
+        gimli::AttributeValue::DwoId(value) => {
+            writeln!(w, "0x{:016x}", value.0)?;
+        }
+    }
+
+    Ok(())
+}
+
+fn dump_type_signature<W: Write>(w: &mut W, signature: gimli::DebugTypeSignature) -> Result<()> {
+    write!(w, "0x{:016x}", signature.0)?;
+    Ok(())
+}
+
+fn dump_file_index<R: Reader, W: Write>(
+    w: &mut W,
+    file_index: u64,
+    unit: &gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+) -> Result<()> {
+    if file_index == 0 && unit.header.version() <= 4 {
+        return Ok(());
+    }
+    let header = match unit.line_program {
+        Some(ref program) => program.header(),
+        None => return Ok(()),
+    };
+    let file = match header.file(file_index) {
+        Some(file) => file,
+        None => {
+            writeln!(w, "Unable to get header for file {}", file_index)?;
+            return Ok(());
+        }
+    };
+    write!(w, " ")?;
+    if let Some(directory) = file.directory(header) {
+        let directory = dwarf.attr_string(unit, directory)?;
+        let directory = directory.to_string_lossy()?;
+        if file.directory_index() != 0 && !directory.starts_with('/') {
+            if let Some(ref comp_dir) = unit.comp_dir {
+                write!(w, "{}/", comp_dir.to_string_lossy()?,)?;
+            }
+        }
+        write!(w, "{}/", directory)?;
+    }
+    write!(
+        w,
+        "{}",
+        dwarf
+            .attr_string(unit, file.path_name())?
+            .to_string_lossy()?
+    )?;
+    Ok(())
+}
+
+fn dump_exprloc<R: Reader, W: Write>(
+    w: &mut W,
+    encoding: gimli::Encoding,
+    data: &gimli::Expression<R>,
+) -> Result<()> {
+    let mut pc = data.0.clone();
+    let mut space = false;
+    while pc.len() != 0 {
+        let pc_clone = pc.clone();
+        match gimli::Operation::parse(&mut pc, encoding) {
+            Ok(op) => {
+                if space {
+                    write!(w, " ")?;
+                } else {
+                    space = true;
+                }
+                dump_op(w, encoding, pc_clone, op)?;
+            }
+            Err(gimli::Error::InvalidExpression(op)) => {
+                writeln!(w, "WARNING: unsupported operation 0x{:02x}", op.0)?;
+                return Ok(());
+            }
+            Err(gimli::Error::UnsupportedRegister(register)) => {
+                writeln!(w, "WARNING: unsupported register {}", register)?;
+                return Ok(());
+            }
+            Err(gimli::Error::UnexpectedEof(_)) => {
+                writeln!(w, "WARNING: truncated or malformed expression")?;
+                return Ok(());
+            }
+            Err(e) => {
+                writeln!(w, "WARNING: unexpected operation parse error: {}", e)?;
+                return Ok(());
+            }
+        }
+    }
+    Ok(())
+}
+
+fn dump_op<R: Reader, W: Write>(
+    w: &mut W,
+    encoding: gimli::Encoding,
+    mut pc: R,
+    op: gimli::Operation<R>,
+) -> Result<()> {
+    let dwop = gimli::DwOp(pc.read_u8()?);
+    write!(w, "{}", dwop)?;
+    match op {
+        gimli::Operation::Deref {
+            base_type, size, ..
+        } => {
+            if dwop == gimli::DW_OP_deref_size || dwop == gimli::DW_OP_xderef_size {
+                write!(w, " {}", size)?;
+            }
+            if base_type != UnitOffset(0) {
+                write!(w, " type 0x{:08x}", base_type.0)?;
+            }
+        }
+        gimli::Operation::Pick { index } => {
+            if dwop == gimli::DW_OP_pick {
+                write!(w, " {}", index)?;
+            }
+        }
+        gimli::Operation::PlusConstant { value } => {
+            write!(w, " {}", value as i64)?;
+        }
+        gimli::Operation::Bra { target } => {
+            write!(w, " {}", target)?;
+        }
+        gimli::Operation::Skip { target } => {
+            write!(w, " {}", target)?;
+        }
+        gimli::Operation::SignedConstant { value } => match dwop {
+            gimli::DW_OP_const1s
+            | gimli::DW_OP_const2s
+            | gimli::DW_OP_const4s
+            | gimli::DW_OP_const8s
+            | gimli::DW_OP_consts => {
+                write!(w, " {}", value)?;
+            }
+            _ => {}
+        },
+        gimli::Operation::UnsignedConstant { value } => match dwop {
+            gimli::DW_OP_const1u
+            | gimli::DW_OP_const2u
+            | gimli::DW_OP_const4u
+            | gimli::DW_OP_const8u
+            | gimli::DW_OP_constu => {
+                write!(w, " {}", value)?;
+            }
+            _ => {
+                // These have the value encoded in the operation, eg DW_OP_lit0.
+            }
+        },
+        gimli::Operation::Register { register } => {
+            if dwop == gimli::DW_OP_regx {
+                write!(w, " {}", register.0)?;
+            }
+        }
+        gimli::Operation::RegisterOffset {
+            register,
+            offset,
+            base_type,
+        } => {
+            if dwop >= gimli::DW_OP_breg0 && dwop <= gimli::DW_OP_breg31 {
+                write!(w, "{:+}", offset)?;
+            } else {
+                write!(w, " {}", register.0)?;
+                if offset != 0 {
+                    write!(w, "{:+}", offset)?;
+                }
+                if base_type != UnitOffset(0) {
+                    write!(w, " type 0x{:08x}", base_type.0)?;
+                }
+            }
+        }
+        gimli::Operation::FrameOffset { offset } => {
+            write!(w, " {}", offset)?;
+        }
+        gimli::Operation::Call { offset } => match offset {
+            gimli::DieReference::UnitRef(gimli::UnitOffset(offset)) => {
+                write!(w, " 0x{:08x}", offset)?;
+            }
+            gimli::DieReference::DebugInfoRef(gimli::DebugInfoOffset(offset)) => {
+                write!(w, " 0x{:08x}", offset)?;
+            }
+        },
+        gimli::Operation::Piece {
+            size_in_bits,
+            bit_offset: None,
+        } => {
+            write!(w, " {}", size_in_bits / 8)?;
+        }
+        gimli::Operation::Piece {
+            size_in_bits,
+            bit_offset: Some(bit_offset),
+        } => {
+            write!(w, " 0x{:08x} offset 0x{:08x}", size_in_bits, bit_offset)?;
+        }
+        gimli::Operation::ImplicitValue { data } => {
+            let data = data.to_slice()?;
+            write!(w, " 0x{:08x} contents 0x", data.len())?;
+            for byte in data.iter() {
+                write!(w, "{:02x}", byte)?;
+            }
+        }
+        gimli::Operation::ImplicitPointer { value, byte_offset } => {
+            write!(w, " 0x{:08x} {}", value.0, byte_offset)?;
+        }
+        gimli::Operation::EntryValue { expression } => {
+            write!(w, "(")?;
+            dump_exprloc(w, encoding, &gimli::Expression(expression))?;
+            write!(w, ")")?;
+        }
+        gimli::Operation::ParameterRef { offset } => {
+            write!(w, " 0x{:08x}", offset.0)?;
+        }
+        gimli::Operation::Address { address } => {
+            write!(w, " 0x{:08x}", address)?;
+        }
+        gimli::Operation::AddressIndex { index } => {
+            write!(w, " 0x{:08x}", index.0)?;
+        }
+        gimli::Operation::ConstantIndex { index } => {
+            write!(w, " 0x{:08x}", index.0)?;
+        }
+        gimli::Operation::TypedLiteral { base_type, value } => {
+            write!(w, " type 0x{:08x} contents 0x", base_type.0)?;
+            for byte in value.to_slice()?.iter() {
+                write!(w, "{:02x}", byte)?;
+            }
+        }
+        gimli::Operation::Convert { base_type } => {
+            write!(w, " type 0x{:08x}", base_type.0)?;
+        }
+        gimli::Operation::Reinterpret { base_type } => {
+            write!(w, " type 0x{:08x}", base_type.0)?;
+        }
+        gimli::Operation::WasmLocal { index }
+        | gimli::Operation::WasmGlobal { index }
+        | gimli::Operation::WasmStack { index } => {
+            let wasmop = pc.read_u8()?;
+            write!(w, " 0x{:x} 0x{:x}", wasmop, index)?;
+        }
+        gimli::Operation::Drop
+        | gimli::Operation::Swap
+        | gimli::Operation::Rot
+        | gimli::Operation::Abs
+        | gimli::Operation::And
+        | gimli::Operation::Div
+        | gimli::Operation::Minus
+        | gimli::Operation::Mod
+        | gimli::Operation::Mul
+        | gimli::Operation::Neg
+        | gimli::Operation::Not
+        | gimli::Operation::Or
+        | gimli::Operation::Plus
+        | gimli::Operation::Shl
+        | gimli::Operation::Shr
+        | gimli::Operation::Shra
+        | gimli::Operation::Xor
+        | gimli::Operation::Eq
+        | gimli::Operation::Ge
+        | gimli::Operation::Gt
+        | gimli::Operation::Le
+        | gimli::Operation::Lt
+        | gimli::Operation::Ne
+        | gimli::Operation::Nop
+        | gimli::Operation::PushObjectAddress
+        | gimli::Operation::TLS
+        | gimli::Operation::CallFrameCFA
+        | gimli::Operation::StackValue => {}
+    };
+    Ok(())
+}
+
+fn dump_loc_list<R: Reader, W: Write>(
+    w: &mut W,
+    offset: gimli::LocationListsOffset<R::Offset>,
+    unit: &gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+) -> Result<()> {
+    let raw_locations = dwarf.raw_locations(unit, offset)?;
+    let raw_locations: Vec<_> = raw_locations.collect()?;
+    let mut locations = dwarf.locations(unit, offset)?;
+    writeln!(
+        w,
+        "<loclist at {}+0x{:08x} with {} entries>",
+        if unit.encoding().version < 5 {
+            ".debug_loc"
+        } else {
+            ".debug_loclists"
+        },
+        offset.0,
+        raw_locations.len()
+    )?;
+    for (i, raw) in raw_locations.iter().enumerate() {
+        write!(w, "\t\t\t[{:2}]", i)?;
+        match *raw {
+            gimli::RawLocListEntry::BaseAddress { addr } => {
+                writeln!(w, "<new base address 0x{:08x}>", addr)?;
+            }
+            gimli::RawLocListEntry::BaseAddressx { addr } => {
+                let addr_val = dwarf.address(unit, addr)?;
+                writeln!(w, "<new base addressx [{}]0x{:08x}>", addr.0, addr_val)?;
+            }
+            gimli::RawLocListEntry::StartxEndx {
+                begin,
+                end,
+                ref data,
+            } => {
+                let begin_val = dwarf.address(unit, begin)?;
+                let end_val = dwarf.address(unit, end)?;
+                let location = locations.next()?.unwrap();
+                write!(
+                    w,
+                    "<startx-endx \
+                     low-off: [{}]0x{:08x} addr 0x{:08x} \
+                     high-off: [{}]0x{:08x} addr 0x{:08x}>",
+                    begin.0, begin_val, location.range.begin, end.0, end_val, location.range.end
+                )?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+            gimli::RawLocListEntry::StartxLength {
+                begin,
+                length,
+                ref data,
+            } => {
+                let begin_val = dwarf.address(unit, begin)?;
+                let location = locations.next()?.unwrap();
+                write!(
+                    w,
+                    "<start-length \
+                     low-off: [{}]0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin.0, begin_val, location.range.begin, length, location.range.end
+                )?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+            gimli::RawLocListEntry::AddressOrOffsetPair {
+                begin,
+                end,
+                ref data,
+            }
+            | gimli::RawLocListEntry::OffsetPair {
+                begin,
+                end,
+                ref data,
+            } => {
+                let location = locations.next()?.unwrap();
+                write!(
+                    w,
+                    "<offset pair \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, location.range.begin, end, location.range.end
+                )?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+            gimli::RawLocListEntry::DefaultLocation { ref data } => {
+                write!(w, "<default location>")?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+            gimli::RawLocListEntry::StartEnd {
+                begin,
+                end,
+                ref data,
+            } => {
+                let location = locations.next()?.unwrap();
+                write!(
+                    w,
+                    "<start-end \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, location.range.begin, end, location.range.end
+                )?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+            gimli::RawLocListEntry::StartLength {
+                begin,
+                length,
+                ref data,
+            } => {
+                let location = locations.next()?.unwrap();
+                write!(
+                    w,
+                    "<start-length \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, location.range.begin, length, location.range.end
+                )?;
+                dump_exprloc(w, unit.encoding(), data)?;
+                writeln!(w)?;
+            }
+        };
+    }
+    Ok(())
+}
+
+fn dump_range_list<R: Reader, W: Write>(
+    w: &mut W,
+    offset: gimli::RangeListsOffset<R::Offset>,
+    unit: &gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+) -> Result<()> {
+    let raw_ranges = dwarf.raw_ranges(unit, offset)?;
+    let raw_ranges: Vec<_> = raw_ranges.collect()?;
+    let mut ranges = dwarf.ranges(unit, offset)?;
+    writeln!(
+        w,
+        "<rnglist at {}+0x{:08x} with {} entries>",
+        if unit.encoding().version < 5 {
+            ".debug_ranges"
+        } else {
+            ".debug_rnglists"
+        },
+        offset.0,
+        raw_ranges.len()
+    )?;
+    for (i, raw) in raw_ranges.iter().enumerate() {
+        write!(w, "\t\t\t[{:2}] ", i)?;
+        match *raw {
+            gimli::RawRngListEntry::AddressOrOffsetPair { begin, end } => {
+                let range = ranges.next()?.unwrap();
+                writeln!(
+                    w,
+                    "<address pair \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, range.begin, end, range.end
+                )?;
+            }
+            gimli::RawRngListEntry::BaseAddress { addr } => {
+                writeln!(w, "<new base address 0x{:08x}>", addr)?;
+            }
+            gimli::RawRngListEntry::BaseAddressx { addr } => {
+                let addr_val = dwarf.address(unit, addr)?;
+                writeln!(w, "<new base addressx [{}]0x{:08x}>", addr.0, addr_val)?;
+            }
+            gimli::RawRngListEntry::StartxEndx { begin, end } => {
+                let begin_val = dwarf.address(unit, begin)?;
+                let end_val = dwarf.address(unit, end)?;
+                let range = if begin_val == end_val {
+                    gimli::Range {
+                        begin: begin_val,
+                        end: end_val,
+                    }
+                } else {
+                    ranges.next()?.unwrap()
+                };
+                writeln!(
+                    w,
+                    "<startx-endx \
+                     low-off: [{}]0x{:08x} addr 0x{:08x} \
+                     high-off: [{}]0x{:08x} addr 0x{:08x}>",
+                    begin.0, begin_val, range.begin, end.0, end_val, range.end
+                )?;
+            }
+            gimli::RawRngListEntry::StartxLength { begin, length } => {
+                let begin_val = dwarf.address(unit, begin)?;
+                let range = ranges.next()?.unwrap();
+                writeln!(
+                    w,
+                    "<startx-length \
+                     low-off: [{}]0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin.0, begin_val, range.begin, length, range.end
+                )?;
+            }
+            gimli::RawRngListEntry::OffsetPair { begin, end } => {
+                let range = ranges.next()?.unwrap();
+                writeln!(
+                    w,
+                    "<offset pair \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, range.begin, end, range.end
+                )?;
+            }
+            gimli::RawRngListEntry::StartEnd { begin, end } => {
+                let range = if begin == end {
+                    gimli::Range { begin, end }
+                } else {
+                    ranges.next()?.unwrap()
+                };
+                writeln!(
+                    w,
+                    "<start-end \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, range.begin, end, range.end
+                )?;
+            }
+            gimli::RawRngListEntry::StartLength { begin, length } => {
+                let range = ranges.next()?.unwrap();
+                writeln!(
+                    w,
+                    "<start-length \
+                     low-off: 0x{:08x} addr 0x{:08x} \
+                     high-off: 0x{:08x} addr 0x{:08x}>",
+                    begin, range.begin, length, range.end
+                )?;
+            }
+        };
+    }
+    Ok(())
+}
+
+fn dump_line<R: Reader, W: Write>(w: &mut W, dwarf: &gimli::Dwarf<R>) -> Result<()> {
+    let mut iter = dwarf.units();
+    while let Some(header) = iter.next()? {
+        writeln!(
+            w,
+            "\n.debug_line: line number info for unit at .debug_info offset 0x{:08x}",
+            header.offset().as_debug_info_offset().unwrap().0
+        )?;
+        let unit = match dwarf.unit(header) {
+            Ok(unit) => unit,
+            Err(err) => {
+                writeln_error(
+                    w,
+                    dwarf,
+                    err.into(),
+                    "Failed to parse unit root entry for dump_line",
+                )?;
+                continue;
+            }
+        };
+        match dump_line_program(w, &unit, dwarf) {
+            Ok(_) => (),
+            Err(Error::IoError) => return Err(Error::IoError),
+            Err(err) => writeln_error(w, dwarf, err, "Failed to dump line program")?,
+        }
+    }
+    Ok(())
+}
+
+fn dump_line_program<R: Reader, W: Write>(
+    w: &mut W,
+    unit: &gimli::Unit<R>,
+    dwarf: &gimli::Dwarf<R>,
+) -> Result<()> {
+    if let Some(program) = unit.line_program.clone() {
+        {
+            let header = program.header();
+            writeln!(w)?;
+            writeln!(
+                w,
+                "Offset:                             0x{:x}",
+                header.offset().0
+            )?;
+            writeln!(
+                w,
+                "Length:                             {}",
+                header.unit_length()
+            )?;
+            writeln!(
+                w,
+                "DWARF version:                      {}",
+                header.version()
+            )?;
+            writeln!(
+                w,
+                "Address size:                       {}",
+                header.address_size()
+            )?;
+            writeln!(
+                w,
+                "Prologue length:                    {}",
+                header.header_length()
+            )?;
+            writeln!(
+                w,
+                "Minimum instruction length:         {}",
+                header.minimum_instruction_length()
+            )?;
+            writeln!(
+                w,
+                "Maximum operations per instruction: {}",
+                header.maximum_operations_per_instruction()
+            )?;
+            writeln!(
+                w,
+                "Default is_stmt:                    {}",
+                header.default_is_stmt()
+            )?;
+            writeln!(
+                w,
+                "Line base:                          {}",
+                header.line_base()
+            )?;
+            writeln!(
+                w,
+                "Line range:                         {}",
+                header.line_range()
+            )?;
+            writeln!(
+                w,
+                "Opcode base:                        {}",
+                header.opcode_base()
+            )?;
+
+            writeln!(w)?;
+            writeln!(w, "Opcodes:")?;
+            for (i, length) in header
+                .standard_opcode_lengths()
+                .to_slice()?
+                .iter()
+                .enumerate()
+            {
+                writeln!(w, "  Opcode {} has {} args", i + 1, length)?;
+            }
+
+            let base = if header.version() >= 5 { 0 } else { 1 };
+            writeln!(w)?;
+            writeln!(w, "The Directory Table:")?;
+            for (i, dir) in header.include_directories().iter().enumerate() {
+                writeln!(
+                    w,
+                    "  {} {}",
+                    base + i,
+                    dwarf.attr_string(unit, dir.clone())?.to_string_lossy()?
+                )?;
+            }
+
+            writeln!(w)?;
+            writeln!(w, "The File Name Table")?;
+            write!(w, "  Entry\tDir\tTime\tSize")?;
+            if header.file_has_md5() {
+                write!(w, "\tMD5\t\t\t\t")?;
+            }
+            writeln!(w, "\tName")?;
+            for (i, file) in header.file_names().iter().enumerate() {
+                write!(
+                    w,
+                    "  {}\t{}\t{}\t{}",
+                    base + i,
+                    file.directory_index(),
+                    file.timestamp(),
+                    file.size(),
+                )?;
+                if header.file_has_md5() {
+                    let md5 = file.md5();
+                    write!(w, "\t")?;
+                    for i in 0..16 {
+                        write!(w, "{:02X}", md5[i])?;
+                    }
+                }
+                writeln!(
+                    w,
+                    "\t{}",
+                    dwarf
+                        .attr_string(unit, file.path_name())?
+                        .to_string_lossy()?
+                )?;
+            }
+
+            writeln!(w)?;
+            writeln!(w, "Line Number Instructions:")?;
+            let mut instructions = header.instructions();
+            while let Some(instruction) = instructions.next_instruction(header)? {
+                writeln!(w, "  {}", instruction)?;
+            }
+
+            writeln!(w)?;
+            writeln!(w, "Line Number Rows:")?;
+            writeln!(w, "<pc>        [lno,col]")?;
+        }
+        let mut rows = program.rows();
+        let mut file_index = std::u64::MAX;
+        while let Some((header, row)) = rows.next_row()? {
+            let line = match row.line() {
+                Some(line) => line.get(),
+                None => 0,
+            };
+            let column = match row.column() {
+                gimli::ColumnType::Column(column) => column.get(),
+                gimli::ColumnType::LeftEdge => 0,
+            };
+            write!(w, "0x{:08x}  [{:4},{:2}]", row.address(), line, column)?;
+            if row.is_stmt() {
+                write!(w, " NS")?;
+            }
+            if row.basic_block() {
+                write!(w, " BB")?;
+            }
+            if row.end_sequence() {
+                write!(w, " ET")?;
+            }
+            if row.prologue_end() {
+                write!(w, " PE")?;
+            }
+            if row.epilogue_begin() {
+                write!(w, " EB")?;
+            }
+            if row.isa() != 0 {
+                write!(w, " IS={}", row.isa())?;
+            }
+            if row.discriminator() != 0 {
+                write!(w, " DI={}", row.discriminator())?;
+            }
+            if file_index != row.file_index() {
+                file_index = row.file_index();
+                if let Some(file) = row.file(header) {
+                    if let Some(directory) = file.directory(header) {
+                        write!(
+                            w,
+                            " uri: \"{}/{}\"",
+                            dwarf.attr_string(unit, directory)?.to_string_lossy()?,
+                            dwarf
+                                .attr_string(unit, file.path_name())?
+                                .to_string_lossy()?
+                        )?;
+                    } else {
+                        write!(
+                            w,
+                            " uri: \"{}\"",
+                            dwarf
+                                .attr_string(unit, file.path_name())?
+                                .to_string_lossy()?
+                        )?;
+                    }
+                }
+            }
+            writeln!(w)?;
+        }
+    }
+    Ok(())
+}
+
+fn dump_pubnames<R: Reader, W: Write>(
+    w: &mut W,
+    debug_pubnames: &gimli::DebugPubNames<R>,
+    debug_info: &gimli::DebugInfo<R>,
+) -> Result<()> {
+    writeln!(w, "\n.debug_pubnames")?;
+
+    let mut cu_offset;
+    let mut cu_die_offset = gimli::DebugInfoOffset(0);
+    let mut prev_cu_offset = None;
+    let mut pubnames = debug_pubnames.items();
+    while let Some(pubname) = pubnames.next()? {
+        cu_offset = pubname.unit_header_offset();
+        if Some(cu_offset) != prev_cu_offset {
+            let cu = debug_info.header_from_offset(cu_offset)?;
+            cu_die_offset = gimli::DebugInfoOffset(cu_offset.0 + cu.header_size());
+            prev_cu_offset = Some(cu_offset);
+        }
+        let die_in_cu = pubname.die_offset();
+        let die_in_sect = cu_offset.0 + die_in_cu.0;
+        writeln!(w,
+            "global die-in-sect 0x{:08x}, cu-in-sect 0x{:08x}, die-in-cu 0x{:08x}, cu-header-in-sect 0x{:08x} '{}'",
+            die_in_sect,
+            cu_die_offset.0,
+            die_in_cu.0,
+            cu_offset.0,
+            pubname.name().to_string_lossy()?
+        )?;
+    }
+    Ok(())
+}
+
+fn dump_pubtypes<R: Reader, W: Write>(
+    w: &mut W,
+    debug_pubtypes: &gimli::DebugPubTypes<R>,
+    debug_info: &gimli::DebugInfo<R>,
+) -> Result<()> {
+    writeln!(w, "\n.debug_pubtypes")?;
+
+    let mut cu_offset;
+    let mut cu_die_offset = gimli::DebugInfoOffset(0);
+    let mut prev_cu_offset = None;
+    let mut pubtypes = debug_pubtypes.items();
+    while let Some(pubtype) = pubtypes.next()? {
+        cu_offset = pubtype.unit_header_offset();
+        if Some(cu_offset) != prev_cu_offset {
+            let cu = debug_info.header_from_offset(cu_offset)?;
+            cu_die_offset = gimli::DebugInfoOffset(cu_offset.0 + cu.header_size());
+            prev_cu_offset = Some(cu_offset);
+        }
+        let die_in_cu = pubtype.die_offset();
+        let die_in_sect = cu_offset.0 + die_in_cu.0;
+        writeln!(w,
+            "pubtype die-in-sect 0x{:08x}, cu-in-sect 0x{:08x}, die-in-cu 0x{:08x}, cu-header-in-sect 0x{:08x} '{}'",
+            die_in_sect,
+            cu_die_offset.0,
+            die_in_cu.0,
+            cu_offset.0,
+            pubtype.name().to_string_lossy()?
+        )?;
+    }
+    Ok(())
+}
+
+fn dump_aranges<R: Reader, W: Write>(
+    w: &mut W,
+    debug_aranges: &gimli::DebugAranges<R>,
+) -> Result<()> {
+    writeln!(w, "\n.debug_aranges")?;
+
+    let mut headers = debug_aranges.headers();
+    while let Some(header) = headers.next()? {
+        writeln!(
+            w,
+            "Address Range Header: length = 0x{:08x}, version = 0x{:04x}, cu_offset = 0x{:08x}, addr_size = 0x{:02x}, seg_size = 0x{:02x}",
+            header.length(),
+            header.encoding().version,
+            header.debug_info_offset().0,
+            header.encoding().address_size,
+            header.segment_size(),
+        )?;
+        let mut aranges = header.entries();
+        while let Some(arange) = aranges.next()? {
+            let range = arange.range();
+            if let Some(segment) = arange.segment() {
+                writeln!(
+                    w,
+                    "[0x{:016x},  0x{:016x}) segment 0x{:x}",
+                    range.begin, range.end, segment
+                )?;
+            } else {
+                writeln!(w, "[0x{:016x},  0x{:016x})", range.begin, range.end)?;
+            }
+        }
+    }
+    Ok(())
+}