Deleted vendor folder

1 files changed, 0 insertions, 916 deletions

diff --git a/vendor/object/src/read/elf/file.rs b/vendor/object/src/read/elf/file.rs
deleted file mode 100644
index 14ba568..0000000
--- a/vendor/object/src/read/elf/file.rs
+++ /dev/null
@@ -1,916 +0,0 @@
-use alloc::vec::Vec;
-use core::convert::TryInto;
-use core::fmt::Debug;
-use core::mem;
-
-use crate::read::{
-    self, util, Architecture, ByteString, Bytes, Error, Export, FileFlags, Import, Object,
-    ObjectKind, ReadError, ReadRef, SectionIndex, StringTable, SymbolIndex,
-};
-use crate::{elf, endian, Endian, Endianness, Pod, U32};
-
-use super::{
-    CompressionHeader, Dyn, ElfComdat, ElfComdatIterator, ElfDynamicRelocationIterator, ElfSection,
-    ElfSectionIterator, ElfSegment, ElfSegmentIterator, ElfSymbol, ElfSymbolIterator,
-    ElfSymbolTable, NoteHeader, ProgramHeader, Rel, Rela, RelocationSections, SectionHeader,
-    SectionTable, Sym, SymbolTable,
-};
-
-/// A 32-bit ELF object file.
-///
-/// This is a file that starts with [`elf::FileHeader32`], and corresponds
-/// to [`crate::FileKind::Elf32`].
-pub type ElfFile32<'data, Endian = Endianness, R = &'data [u8]> =
-    ElfFile<'data, elf::FileHeader32<Endian>, R>;
-/// A 64-bit ELF object file.
-///
-/// This is a file that starts with [`elf::FileHeader64`], and corresponds
-/// to [`crate::FileKind::Elf64`].
-pub type ElfFile64<'data, Endian = Endianness, R = &'data [u8]> =
-    ElfFile<'data, elf::FileHeader64<Endian>, R>;
-
-/// A partially parsed ELF file.
-///
-/// Most functionality is provided by the [`Object`] trait implementation.
-#[derive(Debug)]
-pub struct ElfFile<'data, Elf, R = &'data [u8]>
-where
-    Elf: FileHeader,
-    R: ReadRef<'data>,
-{
-    pub(super) endian: Elf::Endian,
-    pub(super) data: R,
-    pub(super) header: &'data Elf,
-    pub(super) segments: &'data [Elf::ProgramHeader],
-    pub(super) sections: SectionTable<'data, Elf, R>,
-    pub(super) relocations: RelocationSections,
-    pub(super) symbols: SymbolTable<'data, Elf, R>,
-    pub(super) dynamic_symbols: SymbolTable<'data, Elf, R>,
-}
-
-impl<'data, Elf, R> ElfFile<'data, Elf, R>
-where
-    Elf: FileHeader,
-    R: ReadRef<'data>,
-{
-    /// Parse the raw ELF file data.
-    pub fn parse(data: R) -> read::Result<Self> {
-        let header = Elf::parse(data)?;
-        let endian = header.endian()?;
-        let segments = header.program_headers(endian, data)?;
-        let sections = header.sections(endian, data)?;
-        let symbols = sections.symbols(endian, data, elf::SHT_SYMTAB)?;
-        // TODO: get dynamic symbols from DT_SYMTAB if there are no sections
-        let dynamic_symbols = sections.symbols(endian, data, elf::SHT_DYNSYM)?;
-        // The API we provide requires a mapping from section to relocations, so build it now.
-        let relocations = sections.relocation_sections(endian, symbols.section())?;
-
-        Ok(ElfFile {
-            endian,
-            data,
-            header,
-            segments,
-            sections,
-            relocations,
-            symbols,
-            dynamic_symbols,
-        })
-    }
-
-    /// Returns the endianness.
-    pub fn endian(&self) -> Elf::Endian {
-        self.endian
-    }
-
-    /// Returns the raw data.
-    pub fn data(&self) -> R {
-        self.data
-    }
-
-    /// Returns the raw ELF file header.
-    pub fn raw_header(&self) -> &'data Elf {
-        self.header
-    }
-
-    /// Returns the raw ELF segments.
-    pub fn raw_segments(&self) -> &'data [Elf::ProgramHeader] {
-        self.segments
-    }
-
-    fn raw_section_by_name<'file>(
-        &'file self,
-        section_name: &[u8],
-    ) -> Option<ElfSection<'data, 'file, Elf, R>> {
-        self.sections
-            .section_by_name(self.endian, section_name)
-            .map(|(index, section)| ElfSection {
-                file: self,
-                index: SectionIndex(index),
-                section,
-            })
-    }
-
-    #[cfg(feature = "compression")]
-    fn zdebug_section_by_name<'file>(
-        &'file self,
-        section_name: &[u8],
-    ) -> Option<ElfSection<'data, 'file, Elf, R>> {
-        if !section_name.starts_with(b".debug_") {
-            return None;
-        }
-        let mut name = Vec::with_capacity(section_name.len() + 1);
-        name.extend_from_slice(b".zdebug_");
-        name.extend_from_slice(&section_name[7..]);
-        self.raw_section_by_name(&name)
-    }
-
-    #[cfg(not(feature = "compression"))]
-    fn zdebug_section_by_name<'file>(
-        &'file self,
-        _section_name: &[u8],
-    ) -> Option<ElfSection<'data, 'file, Elf, R>> {
-        None
-    }
-}
-
-impl<'data, Elf, R> read::private::Sealed for ElfFile<'data, Elf, R>
-where
-    Elf: FileHeader,
-    R: ReadRef<'data>,
-{
-}
-
-impl<'data, 'file, Elf, R> Object<'data, 'file> for ElfFile<'data, Elf, R>
-where
-    'data: 'file,
-    Elf: FileHeader,
-    R: 'file + ReadRef<'data>,
-{
-    type Segment = ElfSegment<'data, 'file, Elf, R>;
-    type SegmentIterator = ElfSegmentIterator<'data, 'file, Elf, R>;
-    type Section = ElfSection<'data, 'file, Elf, R>;
-    type SectionIterator = ElfSectionIterator<'data, 'file, Elf, R>;
-    type Comdat = ElfComdat<'data, 'file, Elf, R>;
-    type ComdatIterator = ElfComdatIterator<'data, 'file, Elf, R>;
-    type Symbol = ElfSymbol<'data, 'file, Elf, R>;
-    type SymbolIterator = ElfSymbolIterator<'data, 'file, Elf, R>;
-    type SymbolTable = ElfSymbolTable<'data, 'file, Elf, R>;
-    type DynamicRelocationIterator = ElfDynamicRelocationIterator<'data, 'file, Elf, R>;
-
-    fn architecture(&self) -> Architecture {
-        match (
-            self.header.e_machine(self.endian),
-            self.header.is_class_64(),
-        ) {
-            (elf::EM_AARCH64, true) => Architecture::Aarch64,
-            (elf::EM_AARCH64, false) => Architecture::Aarch64_Ilp32,
-            (elf::EM_ARM, _) => Architecture::Arm,
-            (elf::EM_AVR, _) => Architecture::Avr,
-            (elf::EM_BPF, _) => Architecture::Bpf,
-            (elf::EM_CSKY, _) => Architecture::Csky,
-            (elf::EM_386, _) => Architecture::I386,
-            (elf::EM_X86_64, false) => Architecture::X86_64_X32,
-            (elf::EM_X86_64, true) => Architecture::X86_64,
-            (elf::EM_HEXAGON, _) => Architecture::Hexagon,
-            (elf::EM_LOONGARCH, true) => Architecture::LoongArch64,
-            (elf::EM_MIPS, false) => Architecture::Mips,
-            (elf::EM_MIPS, true) => Architecture::Mips64,
-            (elf::EM_MSP430, _) => Architecture::Msp430,
-            (elf::EM_PPC, _) => Architecture::PowerPc,
-            (elf::EM_PPC64, _) => Architecture::PowerPc64,
-            (elf::EM_RISCV, false) => Architecture::Riscv32,
-            (elf::EM_RISCV, true) => Architecture::Riscv64,
-            // This is either s390 or s390x, depending on the ELF class.
-            // We only support the 64-bit variant s390x here.
-            (elf::EM_S390, true) => Architecture::S390x,
-            (elf::EM_SBF, _) => Architecture::Sbf,
-            (elf::EM_SHARC, false) => Architecture::Sharc,
-            (elf::EM_SPARCV9, true) => Architecture::Sparc64,
-            (elf::EM_XTENSA, false) => Architecture::Xtensa,
-            _ => Architecture::Unknown,
-        }
-    }
-
-    #[inline]
-    fn is_little_endian(&self) -> bool {
-        self.header.is_little_endian()
-    }
-
-    #[inline]
-    fn is_64(&self) -> bool {
-        self.header.is_class_64()
-    }
-
-    fn kind(&self) -> ObjectKind {
-        match self.header.e_type(self.endian) {
-            elf::ET_REL => ObjectKind::Relocatable,
-            elf::ET_EXEC => ObjectKind::Executable,
-            // TODO: check for `DF_1_PIE`?
-            elf::ET_DYN => ObjectKind::Dynamic,
-            elf::ET_CORE => ObjectKind::Core,
-            _ => ObjectKind::Unknown,
-        }
-    }
-
-    fn segments(&'file self) -> ElfSegmentIterator<'data, 'file, Elf, R> {
-        ElfSegmentIterator {
-            file: self,
-            iter: self.segments.iter(),
-        }
-    }
-
-    fn section_by_name_bytes(
-        &'file self,
-        section_name: &[u8],
-    ) -> Option<ElfSection<'data, 'file, Elf, R>> {
-        self.raw_section_by_name(section_name)
-            .or_else(|| self.zdebug_section_by_name(section_name))
-    }
-
-    fn section_by_index(
-        &'file self,
-        index: SectionIndex,
-    ) -> read::Result<ElfSection<'data, 'file, Elf, R>> {
-        let section = self.sections.section(index)?;
-        Ok(ElfSection {
-            file: self,
-            index,
-            section,
-        })
-    }
-
-    fn sections(&'file self) -> ElfSectionIterator<'data, 'file, Elf, R> {
-        ElfSectionIterator {
-            file: self,
-            iter: self.sections.iter().enumerate(),
-        }
-    }
-
-    fn comdats(&'file self) -> ElfComdatIterator<'data, 'file, Elf, R> {
-        ElfComdatIterator {
-            file: self,
-            iter: self.sections.iter().enumerate(),
-        }
-    }
-
-    fn symbol_by_index(
-        &'file self,
-        index: SymbolIndex,
-    ) -> read::Result<ElfSymbol<'data, 'file, Elf, R>> {
-        let symbol = self.symbols.symbol(index.0)?;
-        Ok(ElfSymbol {
-            endian: self.endian,
-            symbols: &self.symbols,
-            index,
-            symbol,
-        })
-    }
-
-    fn symbols(&'file self) -> ElfSymbolIterator<'data, 'file, Elf, R> {
-        ElfSymbolIterator {
-            endian: self.endian,
-            symbols: &self.symbols,
-            index: 0,
-        }
-    }
-
-    fn symbol_table(&'file self) -> Option<ElfSymbolTable<'data, 'file, Elf, R>> {
-        if self.symbols.is_empty() {
-            return None;
-        }
-        Some(ElfSymbolTable {
-            endian: self.endian,
-            symbols: &self.symbols,
-        })
-    }
-
-    fn dynamic_symbols(&'file self) -> ElfSymbolIterator<'data, 'file, Elf, R> {
-        ElfSymbolIterator {
-            endian: self.endian,
-            symbols: &self.dynamic_symbols,
-            index: 0,
-        }
-    }
-
-    fn dynamic_symbol_table(&'file self) -> Option<ElfSymbolTable<'data, 'file, Elf, R>> {
-        if self.dynamic_symbols.is_empty() {
-            return None;
-        }
-        Some(ElfSymbolTable {
-            endian: self.endian,
-            symbols: &self.dynamic_symbols,
-        })
-    }
-
-    fn dynamic_relocations(
-        &'file self,
-    ) -> Option<ElfDynamicRelocationIterator<'data, 'file, Elf, R>> {
-        Some(ElfDynamicRelocationIterator {
-            section_index: SectionIndex(1),
-            file: self,
-            relocations: None,
-        })
-    }
-
-    fn imports(&self) -> read::Result<Vec<Import<'data>>> {
-        let mut imports = Vec::new();
-        for symbol in self.dynamic_symbols.iter() {
-            if symbol.is_undefined(self.endian) {
-                let name = symbol.name(self.endian, self.dynamic_symbols.strings())?;
-                if !name.is_empty() {
-                    // TODO: use symbol versioning to determine library
-                    imports.push(Import {
-                        name: ByteString(name),
-                        library: ByteString(&[]),
-                    });
-                }
-            }
-        }
-        Ok(imports)
-    }
-
-    fn exports(&self) -> read::Result<Vec<Export<'data>>> {
-        let mut exports = Vec::new();
-        for symbol in self.dynamic_symbols.iter() {
-            if symbol.is_definition(self.endian) {
-                let name = symbol.name(self.endian, self.dynamic_symbols.strings())?;
-                let address = symbol.st_value(self.endian).into();
-                exports.push(Export {
-                    name: ByteString(name),
-                    address,
-                });
-            }
-        }
-        Ok(exports)
-    }
-
-    fn has_debug_symbols(&self) -> bool {
-        for section in self.sections.iter() {
-            if let Ok(name) = self.sections.section_name(self.endian, section) {
-                if name == b".debug_info" || name == b".zdebug_info" {
-                    return true;
-                }
-            }
-        }
-        false
-    }
-
-    fn build_id(&self) -> read::Result<Option<&'data [u8]>> {
-        let endian = self.endian;
-        // Use section headers if present, otherwise use program headers.
-        if !self.sections.is_empty() {
-            for section in self.sections.iter() {
-                if let Some(mut notes) = section.notes(endian, self.data)? {
-                    while let Some(note) = notes.next()? {
-                        if note.name() == elf::ELF_NOTE_GNU
-                            && note.n_type(endian) == elf::NT_GNU_BUILD_ID
-                        {
-                            return Ok(Some(note.desc()));
-                        }
-                    }
-                }
-            }
-        } else {
-            for segment in self.segments {
-                if let Some(mut notes) = segment.notes(endian, self.data)? {
-                    while let Some(note) = notes.next()? {
-                        if note.name() == elf::ELF_NOTE_GNU
-                            && note.n_type(endian) == elf::NT_GNU_BUILD_ID
-                        {
-                            return Ok(Some(note.desc()));
-                        }
-                    }
-                }
-            }
-        }
-        Ok(None)
-    }
-
-    fn gnu_debuglink(&self) -> read::Result<Option<(&'data [u8], u32)>> {
-        let section = match self.raw_section_by_name(b".gnu_debuglink") {
-            Some(section) => section,
-            None => return Ok(None),
-        };
-        let data = section
-            .section
-            .data(self.endian, self.data)
-            .read_error("Invalid ELF .gnu_debuglink section offset or size")
-            .map(Bytes)?;
-        let filename = data
-            .read_string_at(0)
-            .read_error("Missing ELF .gnu_debuglink filename")?;
-        let crc_offset = util::align(filename.len() + 1, 4);
-        let crc = data
-            .read_at::<U32<_>>(crc_offset)
-            .read_error("Missing ELF .gnu_debuglink crc")?
-            .get(self.endian);
-        Ok(Some((filename, crc)))
-    }
-
-    fn gnu_debugaltlink(&self) -> read::Result<Option<(&'data [u8], &'data [u8])>> {
-        let section = match self.raw_section_by_name(b".gnu_debugaltlink") {
-            Some(section) => section,
-            None => return Ok(None),
-        };
-        let mut data = section
-            .section
-            .data(self.endian, self.data)
-            .read_error("Invalid ELF .gnu_debugaltlink section offset or size")
-            .map(Bytes)?;
-        let filename = data
-            .read_string()
-            .read_error("Missing ELF .gnu_debugaltlink filename")?;
-        let build_id = data.0;
-        Ok(Some((filename, build_id)))
-    }
-
-    fn relative_address_base(&self) -> u64 {
-        0
-    }
-
-    fn entry(&self) -> u64 {
-        self.header.e_entry(self.endian).into()
-    }
-
-    fn flags(&self) -> FileFlags {
-        FileFlags::Elf {
-            os_abi: self.header.e_ident().os_abi,
-            abi_version: self.header.e_ident().abi_version,
-            e_flags: self.header.e_flags(self.endian),
-        }
-    }
-}
-
-/// A trait for generic access to [`elf::FileHeader32`] and [`elf::FileHeader64`].
-#[allow(missing_docs)]
-pub trait FileHeader: Debug + Pod {
-    // Ideally this would be a `u64: From<Word>`, but can't express that.
-    type Word: Into<u64>;
-    type Sword: Into<i64>;
-    type Endian: endian::Endian;
-    type ProgramHeader: ProgramHeader<Elf = Self, Endian = Self::Endian, Word = Self::Word>;
-    type SectionHeader: SectionHeader<Elf = Self, Endian = Self::Endian, Word = Self::Word>;
-    type CompressionHeader: CompressionHeader<Endian = Self::Endian, Word = Self::Word>;
-    type NoteHeader: NoteHeader<Endian = Self::Endian>;
-    type Dyn: Dyn<Endian = Self::Endian, Word = Self::Word>;
-    type Sym: Sym<Endian = Self::Endian, Word = Self::Word>;
-    type Rel: Rel<Endian = Self::Endian, Word = Self::Word>;
-    type Rela: Rela<Endian = Self::Endian, Word = Self::Word> + From<Self::Rel>;
-
-    /// Return true if this type is a 64-bit header.
-    ///
-    /// This is a property of the type, not a value in the header data.
-    fn is_type_64(&self) -> bool;
-
-    /// Return true if this type is a 64-bit header.
-    ///
-    /// This is a property of the type, not a value in the header data.
-    ///
-    /// This is the same as [`Self::is_type_64`], but is non-dispatchable.
-    fn is_type_64_sized() -> bool
-    where
-        Self: Sized;
-
-    fn e_ident(&self) -> &elf::Ident;
-    fn e_type(&self, endian: Self::Endian) -> u16;
-    fn e_machine(&self, endian: Self::Endian) -> u16;
-    fn e_version(&self, endian: Self::Endian) -> u32;
-    fn e_entry(&self, endian: Self::Endian) -> Self::Word;
-    fn e_phoff(&self, endian: Self::Endian) -> Self::Word;
-    fn e_shoff(&self, endian: Self::Endian) -> Self::Word;
-    fn e_flags(&self, endian: Self::Endian) -> u32;
-    fn e_ehsize(&self, endian: Self::Endian) -> u16;
-    fn e_phentsize(&self, endian: Self::Endian) -> u16;
-    fn e_phnum(&self, endian: Self::Endian) -> u16;
-    fn e_shentsize(&self, endian: Self::Endian) -> u16;
-    fn e_shnum(&self, endian: Self::Endian) -> u16;
-    fn e_shstrndx(&self, endian: Self::Endian) -> u16;
-
-    // Provided methods.
-
-    /// Read the file header.
-    ///
-    /// Also checks that the ident field in the file header is a supported format.
-    fn parse<'data, R: ReadRef<'data>>(data: R) -> read::Result<&'data Self> {
-        let header = data
-            .read_at::<Self>(0)
-            .read_error("Invalid ELF header size or alignment")?;
-        if !header.is_supported() {
-            return Err(Error("Unsupported ELF header"));
-        }
-        // TODO: Check self.e_ehsize?
-        Ok(header)
-    }
-
-    /// Check that the ident field in the file header is a supported format.
-    ///
-    /// This checks the magic number, version, class, and endianness.
-    fn is_supported(&self) -> bool {
-        let ident = self.e_ident();
-        // TODO: Check self.e_version too? Requires endian though.
-        ident.magic == elf::ELFMAG
-            && (self.is_type_64() || self.is_class_32())
-            && (!self.is_type_64() || self.is_class_64())
-            && (self.is_little_endian() || self.is_big_endian())
-            && ident.version == elf::EV_CURRENT
-    }
-
-    fn is_class_32(&self) -> bool {
-        self.e_ident().class == elf::ELFCLASS32
-    }
-
-    fn is_class_64(&self) -> bool {
-        self.e_ident().class == elf::ELFCLASS64
-    }
-
-    fn is_little_endian(&self) -> bool {
-        self.e_ident().data == elf::ELFDATA2LSB
-    }
-
-    fn is_big_endian(&self) -> bool {
-        self.e_ident().data == elf::ELFDATA2MSB
-    }
-
-    fn endian(&self) -> read::Result<Self::Endian> {
-        Self::Endian::from_big_endian(self.is_big_endian()).read_error("Unsupported ELF endian")
-    }
-
-    /// Return the first section header, if present.
-    ///
-    /// Section 0 is a special case because getting the section headers normally
-    /// requires `shnum`, but `shnum` may be in the first section header.
-    fn section_0<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<Option<&'data Self::SectionHeader>> {
-        let shoff: u64 = self.e_shoff(endian).into();
-        if shoff == 0 {
-            // No section headers is ok.
-            return Ok(None);
-        }
-        let shentsize = usize::from(self.e_shentsize(endian));
-        if shentsize != mem::size_of::<Self::SectionHeader>() {
-            // Section header size must match.
-            return Err(Error("Invalid ELF section header entry size"));
-        }
-        data.read_at(shoff)
-            .map(Some)
-            .read_error("Invalid ELF section header offset or size")
-    }
-
-    /// Return the `e_phnum` field of the header. Handles extended values.
-    ///
-    /// Returns `Err` for invalid values.
-    fn phnum<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<usize> {
-        let e_phnum = self.e_phnum(endian);
-        if e_phnum < elf::PN_XNUM {
-            Ok(e_phnum as usize)
-        } else if let Some(section_0) = self.section_0(endian, data)? {
-            Ok(section_0.sh_info(endian) as usize)
-        } else {
-            // Section 0 must exist if e_phnum overflows.
-            Err(Error("Missing ELF section headers for e_phnum overflow"))
-        }
-    }
-
-    /// Return the `e_shnum` field of the header. Handles extended values.
-    ///
-    /// Returns `Err` for invalid values.
-    fn shnum<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<usize> {
-        let e_shnum = self.e_shnum(endian);
-        if e_shnum > 0 {
-            Ok(e_shnum as usize)
-        } else if let Some(section_0) = self.section_0(endian, data)? {
-            section_0
-                .sh_size(endian)
-                .into()
-                .try_into()
-                .ok()
-                .read_error("Invalid ELF extended e_shnum")
-        } else {
-            // No section headers is ok.
-            Ok(0)
-        }
-    }
-
-    /// Return the `e_shstrndx` field of the header. Handles extended values.
-    ///
-    /// Returns `Err` for invalid values (including if the index is 0).
-    fn shstrndx<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<u32> {
-        let e_shstrndx = self.e_shstrndx(endian);
-        let index = if e_shstrndx != elf::SHN_XINDEX {
-            e_shstrndx.into()
-        } else if let Some(section_0) = self.section_0(endian, data)? {
-            section_0.sh_link(endian)
-        } else {
-            // Section 0 must exist if we're trying to read e_shstrndx.
-            return Err(Error("Missing ELF section headers for e_shstrndx overflow"));
-        };
-        if index == 0 {
-            return Err(Error("Missing ELF e_shstrndx"));
-        }
-        Ok(index)
-    }
-
-    /// Return the slice of program headers.
-    ///
-    /// Returns `Ok(&[])` if there are no program headers.
-    /// Returns `Err` for invalid values.
-    fn program_headers<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<&'data [Self::ProgramHeader]> {
-        let phoff: u64 = self.e_phoff(endian).into();
-        if phoff == 0 {
-            // No program headers is ok.
-            return Ok(&[]);
-        }
-        let phnum = self.phnum(endian, data)?;
-        if phnum == 0 {
-            // No program headers is ok.
-            return Ok(&[]);
-        }
-        let phentsize = self.e_phentsize(endian) as usize;
-        if phentsize != mem::size_of::<Self::ProgramHeader>() {
-            // Program header size must match.
-            return Err(Error("Invalid ELF program header entry size"));
-        }
-        data.read_slice_at(phoff, phnum)
-            .read_error("Invalid ELF program header size or alignment")
-    }
-
-    /// Return the slice of section headers.
-    ///
-    /// Returns `Ok(&[])` if there are no section headers.
-    /// Returns `Err` for invalid values.
-    fn section_headers<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<&'data [Self::SectionHeader]> {
-        let shoff: u64 = self.e_shoff(endian).into();
-        if shoff == 0 {
-            // No section headers is ok.
-            return Ok(&[]);
-        }
-        let shnum = self.shnum(endian, data)?;
-        if shnum == 0 {
-            // No section headers is ok.
-            return Ok(&[]);
-        }
-        let shentsize = usize::from(self.e_shentsize(endian));
-        if shentsize != mem::size_of::<Self::SectionHeader>() {
-            // Section header size must match.
-            return Err(Error("Invalid ELF section header entry size"));
-        }
-        data.read_slice_at(shoff, shnum)
-            .read_error("Invalid ELF section header offset/size/alignment")
-    }
-
-    /// Return the string table for the section headers.
-    fn section_strings<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-        sections: &[Self::SectionHeader],
-    ) -> read::Result<StringTable<'data, R>> {
-        if sections.is_empty() {
-            return Ok(StringTable::default());
-        }
-        let index = self.shstrndx(endian, data)? as usize;
-        let shstrtab = sections.get(index).read_error("Invalid ELF e_shstrndx")?;
-        let strings = if let Some((shstrtab_offset, shstrtab_size)) = shstrtab.file_range(endian) {
-            let shstrtab_end = shstrtab_offset
-                .checked_add(shstrtab_size)
-                .read_error("Invalid ELF shstrtab size")?;
-            StringTable::new(data, shstrtab_offset, shstrtab_end)
-        } else {
-            StringTable::default()
-        };
-        Ok(strings)
-    }
-
-    /// Return the section table.
-    fn sections<'data, R: ReadRef<'data>>(
-        &self,
-        endian: Self::Endian,
-        data: R,
-    ) -> read::Result<SectionTable<'data, Self, R>> {
-        let sections = self.section_headers(endian, data)?;
-        let strings = self.section_strings(endian, data, sections)?;
-        Ok(SectionTable::new(sections, strings))
-    }
-
-    /// Returns whether this is a mips64el elf file.
-    fn is_mips64el(&self, endian: Self::Endian) -> bool {
-        self.is_class_64() && self.is_little_endian() && self.e_machine(endian) == elf::EM_MIPS
-    }
-}
-
-impl<Endian: endian::Endian> FileHeader for elf::FileHeader32<Endian> {
-    type Word = u32;
-    type Sword = i32;
-    type Endian = Endian;
-    type ProgramHeader = elf::ProgramHeader32<Endian>;
-    type SectionHeader = elf::SectionHeader32<Endian>;
-    type CompressionHeader = elf::CompressionHeader32<Endian>;
-    type NoteHeader = elf::NoteHeader32<Endian>;
-    type Dyn = elf::Dyn32<Endian>;
-    type Sym = elf::Sym32<Endian>;
-    type Rel = elf::Rel32<Endian>;
-    type Rela = elf::Rela32<Endian>;
-
-    #[inline]
-    fn is_type_64(&self) -> bool {
-        false
-    }
-
-    #[inline]
-    fn is_type_64_sized() -> bool
-    where
-        Self: Sized,
-    {
-        false
-    }
-
-    #[inline]
-    fn e_ident(&self) -> &elf::Ident {
-        &self.e_ident
-    }
-
-    #[inline]
-    fn e_type(&self, endian: Self::Endian) -> u16 {
-        self.e_type.get(endian)
-    }
-
-    #[inline]
-    fn e_machine(&self, endian: Self::Endian) -> u16 {
-        self.e_machine.get(endian)
-    }
-
-    #[inline]
-    fn e_version(&self, endian: Self::Endian) -> u32 {
-        self.e_version.get(endian)
-    }
-
-    #[inline]
-    fn e_entry(&self, endian: Self::Endian) -> Self::Word {
-        self.e_entry.get(endian)
-    }
-
-    #[inline]
-    fn e_phoff(&self, endian: Self::Endian) -> Self::Word {
-        self.e_phoff.get(endian)
-    }
-
-    #[inline]
-    fn e_shoff(&self, endian: Self::Endian) -> Self::Word {
-        self.e_shoff.get(endian)
-    }
-
-    #[inline]
-    fn e_flags(&self, endian: Self::Endian) -> u32 {
-        self.e_flags.get(endian)
-    }
-
-    #[inline]
-    fn e_ehsize(&self, endian: Self::Endian) -> u16 {
-        self.e_ehsize.get(endian)
-    }
-
-    #[inline]
-    fn e_phentsize(&self, endian: Self::Endian) -> u16 {
-        self.e_phentsize.get(endian)
-    }
-
-    #[inline]
-    fn e_phnum(&self, endian: Self::Endian) -> u16 {
-        self.e_phnum.get(endian)
-    }
-
-    #[inline]
-    fn e_shentsize(&self, endian: Self::Endian) -> u16 {
-        self.e_shentsize.get(endian)
-    }
-
-    #[inline]
-    fn e_shnum(&self, endian: Self::Endian) -> u16 {
-        self.e_shnum.get(endian)
-    }
-
-    #[inline]
-    fn e_shstrndx(&self, endian: Self::Endian) -> u16 {
-        self.e_shstrndx.get(endian)
-    }
-}
-
-impl<Endian: endian::Endian> FileHeader for elf::FileHeader64<Endian> {
-    type Word = u64;
-    type Sword = i64;
-    type Endian = Endian;
-    type ProgramHeader = elf::ProgramHeader64<Endian>;
-    type SectionHeader = elf::SectionHeader64<Endian>;
-    type CompressionHeader = elf::CompressionHeader64<Endian>;
-    type NoteHeader = elf::NoteHeader32<Endian>;
-    type Dyn = elf::Dyn64<Endian>;
-    type Sym = elf::Sym64<Endian>;
-    type Rel = elf::Rel64<Endian>;
-    type Rela = elf::Rela64<Endian>;
-
-    #[inline]
-    fn is_type_64(&self) -> bool {
-        true
-    }
-
-    #[inline]
-    fn is_type_64_sized() -> bool
-    where
-        Self: Sized,
-    {
-        true
-    }
-
-    #[inline]
-    fn e_ident(&self) -> &elf::Ident {
-        &self.e_ident
-    }
-
-    #[inline]
-    fn e_type(&self, endian: Self::Endian) -> u16 {
-        self.e_type.get(endian)
-    }
-
-    #[inline]
-    fn e_machine(&self, endian: Self::Endian) -> u16 {
-        self.e_machine.get(endian)
-    }
-
-    #[inline]
-    fn e_version(&self, endian: Self::Endian) -> u32 {
-        self.e_version.get(endian)
-    }
-
-    #[inline]
-    fn e_entry(&self, endian: Self::Endian) -> Self::Word {
-        self.e_entry.get(endian)
-    }
-
-    #[inline]
-    fn e_phoff(&self, endian: Self::Endian) -> Self::Word {
-        self.e_phoff.get(endian)
-    }
-
-    #[inline]
-    fn e_shoff(&self, endian: Self::Endian) -> Self::Word {
-        self.e_shoff.get(endian)
-    }
-
-    #[inline]
-    fn e_flags(&self, endian: Self::Endian) -> u32 {
-        self.e_flags.get(endian)
-    }
-
-    #[inline]
-    fn e_ehsize(&self, endian: Self::Endian) -> u16 {
-        self.e_ehsize.get(endian)
-    }
-
-    #[inline]
-    fn e_phentsize(&self, endian: Self::Endian) -> u16 {
-        self.e_phentsize.get(endian)
-    }
-
-    #[inline]
-    fn e_phnum(&self, endian: Self::Endian) -> u16 {
-        self.e_phnum.get(endian)
-    }
-
-    #[inline]
-    fn e_shentsize(&self, endian: Self::Endian) -> u16 {
-        self.e_shentsize.get(endian)
-    }
-
-    #[inline]
-    fn e_shnum(&self, endian: Self::Endian) -> u16 {
-        self.e_shnum.get(endian)
-    }
-
-    #[inline]
-    fn e_shstrndx(&self, endian: Self::Endian) -> u16 {
-        self.e_shstrndx.get(endian)
-    }
-}