1 files changed, 0 insertions, 502 deletions
diff --git a/vendor/gimli/src/read/reader.rs b/vendor/gimli/src/read/reader.rs
deleted file mode 100644
index e7dd477..0000000
--- a/vendor/gimli/src/read/reader.rs
+++ /dev/null
@@ -1,502 +0,0 @@
-#[cfg(feature = "read")]
-use alloc::borrow::Cow;
-use core::convert::TryInto;
-use core::fmt::Debug;
-use core::hash::Hash;
-use core::ops::{Add, AddAssign, Sub};
-
-use crate::common::Format;
-use crate::endianity::Endianity;
-use crate::leb128;
-use crate::read::{Error, Result};
-
-/// An identifier for an offset within a section reader.
-///
-/// This is used for error reporting. The meaning of this value is specific to
-/// each reader implementation. The values should be chosen to be unique amongst
-/// all readers. If values are not unique then errors may point to the wrong reader.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub struct ReaderOffsetId(pub u64);
-
-/// A trait for offsets with a DWARF section.
-///
-/// This allows consumers to choose a size that is appropriate for their address space.
-pub trait ReaderOffset:
-    Debug + Copy + Eq + Ord + Hash + Add<Output = Self> + AddAssign + Sub<Output = Self>
-{
-    /// Convert a u8 to an offset.
-    fn from_u8(offset: u8) -> Self;
-
-    /// Convert a u16 to an offset.
-    fn from_u16(offset: u16) -> Self;
-
-    /// Convert an i16 to an offset.
-    fn from_i16(offset: i16) -> Self;
-
-    /// Convert a u32 to an offset.
-    fn from_u32(offset: u32) -> Self;
-
-    /// Convert a u64 to an offset.
-    ///
-    /// Returns `Error::UnsupportedOffset` if the value is too large.
-    fn from_u64(offset: u64) -> Result<Self>;
-
-    /// Convert an offset to a u64.
-    fn into_u64(self) -> u64;
-
-    /// Wrapping (modular) addition. Computes `self + other`.
-    fn wrapping_add(self, other: Self) -> Self;
-
-    /// Checked subtraction. Computes `self - other`.
-    fn checked_sub(self, other: Self) -> Option<Self>;
-}
-
-impl ReaderOffset for u64 {
-    #[inline]
-    fn from_u8(offset: u8) -> Self {
-        u64::from(offset)
-    }
-
-    #[inline]
-    fn from_u16(offset: u16) -> Self {
-        u64::from(offset)
-    }
-
-    #[inline]
-    fn from_i16(offset: i16) -> Self {
-        offset as u64
-    }
-
-    #[inline]
-    fn from_u32(offset: u32) -> Self {
-        u64::from(offset)
-    }
-
-    #[inline]
-    fn from_u64(offset: u64) -> Result<Self> {
-        Ok(offset)
-    }
-
-    #[inline]
-    fn into_u64(self) -> u64 {
-        self
-    }
-
-    #[inline]
-    fn wrapping_add(self, other: Self) -> Self {
-        self.wrapping_add(other)
-    }
-
-    #[inline]
-    fn checked_sub(self, other: Self) -> Option<Self> {
-        self.checked_sub(other)
-    }
-}
-
-impl ReaderOffset for u32 {
-    #[inline]
-    fn from_u8(offset: u8) -> Self {
-        u32::from(offset)
-    }
-
-    #[inline]
-    fn from_u16(offset: u16) -> Self {
-        u32::from(offset)
-    }
-
-    #[inline]
-    fn from_i16(offset: i16) -> Self {
-        offset as u32
-    }
-
-    #[inline]
-    fn from_u32(offset: u32) -> Self {
-        offset
-    }
-
-    #[inline]
-    fn from_u64(offset64: u64) -> Result<Self> {
-        let offset = offset64 as u32;
-        if u64::from(offset) == offset64 {
-            Ok(offset)
-        } else {
-            Err(Error::UnsupportedOffset)
-        }
-    }
-
-    #[inline]
-    fn into_u64(self) -> u64 {
-        u64::from(self)
-    }
-
-    #[inline]
-    fn wrapping_add(self, other: Self) -> Self {
-        self.wrapping_add(other)
-    }
-
-    #[inline]
-    fn checked_sub(self, other: Self) -> Option<Self> {
-        self.checked_sub(other)
-    }
-}
-
-impl ReaderOffset for usize {
-    #[inline]
-    fn from_u8(offset: u8) -> Self {
-        offset as usize
-    }
-
-    #[inline]
-    fn from_u16(offset: u16) -> Self {
-        offset as usize
-    }
-
-    #[inline]
-    fn from_i16(offset: i16) -> Self {
-        offset as usize
-    }
-
-    #[inline]
-    fn from_u32(offset: u32) -> Self {
-        offset as usize
-    }
-
-    #[inline]
-    fn from_u64(offset64: u64) -> Result<Self> {
-        let offset = offset64 as usize;
-        if offset as u64 == offset64 {
-            Ok(offset)
-        } else {
-            Err(Error::UnsupportedOffset)
-        }
-    }
-
-    #[inline]
-    fn into_u64(self) -> u64 {
-        self as u64
-    }
-
-    #[inline]
-    fn wrapping_add(self, other: Self) -> Self {
-        self.wrapping_add(other)
-    }
-
-    #[inline]
-    fn checked_sub(self, other: Self) -> Option<Self> {
-        self.checked_sub(other)
-    }
-}
-
-#[cfg(not(feature = "read"))]
-pub(crate) mod seal_if_no_alloc {
-    #[derive(Debug)]
-    pub struct Sealed;
-}
-
-/// A trait for reading the data from a DWARF section.
-///
-/// All read operations advance the section offset of the reader
-/// unless specified otherwise.
-///
-/// ## Choosing a `Reader` Implementation
-///
-/// `gimli` comes with a few different `Reader` implementations and lets you
-/// choose the one that is right for your use case. A `Reader` is essentially a
-/// view into the raw bytes that make up some DWARF, but this view might borrow
-/// the underlying data or use reference counting ownership, and it might be
-/// thread safe or not.
-///
-/// | Implementation    | Ownership         | Thread Safe | Notes |
-/// |:------------------|:------------------|:------------|:------|
-/// | [`EndianSlice`](./struct.EndianSlice.html)        | Borrowed          | Yes         | Fastest, but requires that all of your code work with borrows. |
-/// | [`EndianRcSlice`](./struct.EndianRcSlice.html)    | Reference counted | No          | Shared ownership via reference counting, which alleviates the borrow restrictions of `EndianSlice` but imposes reference counting increments and decrements. Cannot be sent across threads, because the reference count is not atomic. |
-/// | [`EndianArcSlice`](./struct.EndianArcSlice.html)  | Reference counted | Yes         | The same as `EndianRcSlice`, but uses atomic reference counting, and therefore reference counting operations are slower but `EndianArcSlice`s may be sent across threads. |
-/// | [`EndianReader<T>`](./struct.EndianReader.html)   | Same as `T`       | Same as `T` | Escape hatch for easily defining your own type of `Reader`. |
-pub trait Reader: Debug + Clone {
-    /// The endianity of bytes that are read.
-    type Endian: Endianity;
-
-    /// The type used for offsets and lengths.
-    type Offset: ReaderOffset;
-
-    /// Return the endianity of bytes that are read.
-    fn endian(&self) -> Self::Endian;
-
-    /// Return the number of bytes remaining.
-    fn len(&self) -> Self::Offset;
-
-    /// Set the number of bytes remaining to zero.
-    fn empty(&mut self);
-
-    /// Set the number of bytes remaining to the specified length.
-    fn truncate(&mut self, len: Self::Offset) -> Result<()>;
-
-    /// Return the offset of this reader's data relative to the start of
-    /// the given base reader's data.
-    ///
-    /// May panic if this reader's data is not contained within the given
-    /// base reader's data.
-    fn offset_from(&self, base: &Self) -> Self::Offset;
-
-    /// Return an identifier for the current reader offset.
-    fn offset_id(&self) -> ReaderOffsetId;
-
-    /// Return the offset corresponding to the given `id` if
-    /// it is associated with this reader.
-    fn lookup_offset_id(&self, id: ReaderOffsetId) -> Option<Self::Offset>;
-
-    /// Find the index of the first occurrence of the given byte.
-    /// The offset of the reader is not changed.
-    fn find(&self, byte: u8) -> Result<Self::Offset>;
-
-    /// Discard the specified number of bytes.
-    fn skip(&mut self, len: Self::Offset) -> Result<()>;
-
-    /// Split a reader in two.
-    ///
-    /// A new reader is returned that can be used to read the next
-    /// `len` bytes, and `self` is advanced so that it reads the remainder.
-    fn split(&mut self, len: Self::Offset) -> Result<Self>;
-
-    /// This trait cannot be implemented if "read" feature is not enabled.
-    ///
-    /// `Reader` trait has a few methods that depend on `alloc` crate.
-    /// Disallowing `Reader` trait implementation prevents a crate that only depends on
-    /// "read-core" from being broken if another crate depending on `gimli` enables
-    /// "read" feature.
-    #[cfg(not(feature = "read"))]
-    fn cannot_implement() -> seal_if_no_alloc::Sealed;
-
-    /// Return all remaining data as a clone-on-write slice.
-    ///
-    /// The slice will be borrowed where possible, but some readers may
-    /// always return an owned vector.
-    ///
-    /// Does not advance the reader.
-    #[cfg(feature = "read")]
-    fn to_slice(&self) -> Result<Cow<[u8]>>;
-
-    /// Convert all remaining data to a clone-on-write string.
-    ///
-    /// The string will be borrowed where possible, but some readers may
-    /// always return an owned string.
-    ///
-    /// Does not advance the reader.
-    ///
-    /// Returns an error if the data contains invalid characters.
-    #[cfg(feature = "read")]
-    fn to_string(&self) -> Result<Cow<str>>;
-
-    /// Convert all remaining data to a clone-on-write string, including invalid characters.
-    ///
-    /// The string will be borrowed where possible, but some readers may
-    /// always return an owned string.
-    ///
-    /// Does not advance the reader.
-    #[cfg(feature = "read")]
-    fn to_string_lossy(&self) -> Result<Cow<str>>;
-
-    /// Read exactly `buf.len()` bytes into `buf`.
-    fn read_slice(&mut self, buf: &mut [u8]) -> Result<()>;
-
-    /// Read a u8 array.
-    #[inline]
-    fn read_u8_array<A>(&mut self) -> Result<A>
-    where
-        A: Sized + Default + AsMut<[u8]>,
-    {
-        let mut val = Default::default();
-        self.read_slice(<A as AsMut<[u8]>>::as_mut(&mut val))?;
-        Ok(val)
-    }
-
-    /// Return true if the number of bytes remaining is zero.
-    #[inline]
-    fn is_empty(&self) -> bool {
-        self.len() == Self::Offset::from_u8(0)
-    }
-
-    /// Read a u8.
-    #[inline]
-    fn read_u8(&mut self) -> Result<u8> {
-        let a: [u8; 1] = self.read_u8_array()?;
-        Ok(a[0])
-    }
-
-    /// Read an i8.
-    #[inline]
-    fn read_i8(&mut self) -> Result<i8> {
-        let a: [u8; 1] = self.read_u8_array()?;
-        Ok(a[0] as i8)
-    }
-
-    /// Read a u16.
-    #[inline]
-    fn read_u16(&mut self) -> Result<u16> {
-        let a: [u8; 2] = self.read_u8_array()?;
-        Ok(self.endian().read_u16(&a))
-    }
-
-    /// Read an i16.
-    #[inline]
-    fn read_i16(&mut self) -> Result<i16> {
-        let a: [u8; 2] = self.read_u8_array()?;
-        Ok(self.endian().read_i16(&a))
-    }
-
-    /// Read a u32.
-    #[inline]
-    fn read_u32(&mut self) -> Result<u32> {
-        let a: [u8; 4] = self.read_u8_array()?;
-        Ok(self.endian().read_u32(&a))
-    }
-
-    /// Read an i32.
-    #[inline]
-    fn read_i32(&mut self) -> Result<i32> {
-        let a: [u8; 4] = self.read_u8_array()?;
-        Ok(self.endian().read_i32(&a))
-    }
-
-    /// Read a u64.
-    #[inline]
-    fn read_u64(&mut self) -> Result<u64> {
-        let a: [u8; 8] = self.read_u8_array()?;
-        Ok(self.endian().read_u64(&a))
-    }
-
-    /// Read an i64.
-    #[inline]
-    fn read_i64(&mut self) -> Result<i64> {
-        let a: [u8; 8] = self.read_u8_array()?;
-        Ok(self.endian().read_i64(&a))
-    }
-
-    /// Read a f32.
-    #[inline]
-    fn read_f32(&mut self) -> Result<f32> {
-        let a: [u8; 4] = self.read_u8_array()?;
-        Ok(self.endian().read_f32(&a))
-    }
-
-    /// Read a f64.
-    #[inline]
-    fn read_f64(&mut self) -> Result<f64> {
-        let a: [u8; 8] = self.read_u8_array()?;
-        Ok(self.endian().read_f64(&a))
-    }
-
-    /// Read an unsigned n-bytes integer u64.
-    ///
-    /// # Panics
-    ///
-    /// Panics when nbytes < 1 or nbytes > 8
-    #[inline]
-    fn read_uint(&mut self, n: usize) -> Result<u64> {
-        let mut buf = [0; 8];
-        self.read_slice(&mut buf[..n])?;
-        Ok(self.endian().read_uint(&buf[..n]))
-    }
-
-    /// Read a null-terminated slice, and return it (excluding the null).
-    fn read_null_terminated_slice(&mut self) -> Result<Self> {
-        let idx = self.find(0)?;
-        let val = self.split(idx)?;
-        self.skip(Self::Offset::from_u8(1))?;
-        Ok(val)
-    }
-
-    /// Skip a LEB128 encoded integer.
-    fn skip_leb128(&mut self) -> Result<()> {
-        leb128::read::skip(self)
-    }
-
-    /// Read an unsigned LEB128 encoded integer.
-    fn read_uleb128(&mut self) -> Result<u64> {
-        leb128::read::unsigned(self)
-    }
-
-    /// Read an unsigned LEB128 encoded u32.
-    fn read_uleb128_u32(&mut self) -> Result<u32> {
-        leb128::read::unsigned(self)?
-            .try_into()
-            .map_err(|_| Error::BadUnsignedLeb128)
-    }
-
-    /// Read an unsigned LEB128 encoded u16.
-    fn read_uleb128_u16(&mut self) -> Result<u16> {
-        leb128::read::u16(self)
-    }
-
-    /// Read a signed LEB128 encoded integer.
-    fn read_sleb128(&mut self) -> Result<i64> {
-        leb128::read::signed(self)
-    }
-
-    /// Read an initial length field.
-    ///
-    /// This field is encoded as either a 32-bit length or
-    /// a 64-bit length, and the returned `Format` indicates which.
-    fn read_initial_length(&mut self) -> Result<(Self::Offset, Format)> {
-        const MAX_DWARF_32_UNIT_LENGTH: u32 = 0xffff_fff0;
-        const DWARF_64_INITIAL_UNIT_LENGTH: u32 = 0xffff_ffff;
-
-        let val = self.read_u32()?;
-        if val < MAX_DWARF_32_UNIT_LENGTH {
-            Ok((Self::Offset::from_u32(val), Format::Dwarf32))
-        } else if val == DWARF_64_INITIAL_UNIT_LENGTH {
-            let val = self.read_u64().and_then(Self::Offset::from_u64)?;
-            Ok((val, Format::Dwarf64))
-        } else {
-            Err(Error::UnknownReservedLength)
-        }
-    }
-
-    /// Read an address-sized integer, and return it as a `u64`.
-    fn read_address(&mut self, address_size: u8) -> Result<u64> {
-        match address_size {
-            1 => self.read_u8().map(u64::from),
-            2 => self.read_u16().map(u64::from),
-            4 => self.read_u32().map(u64::from),
-            8 => self.read_u64(),
-            otherwise => Err(Error::UnsupportedAddressSize(otherwise)),
-        }
-    }
-
-    /// Parse a word-sized integer according to the DWARF format.
-    ///
-    /// These are always used to encode section offsets or lengths,
-    /// and so have a type of `Self::Offset`.
-    fn read_word(&mut self, format: Format) -> Result<Self::Offset> {
-        match format {
-            Format::Dwarf32 => self.read_u32().map(Self::Offset::from_u32),
-            Format::Dwarf64 => self.read_u64().and_then(Self::Offset::from_u64),
-        }
-    }
-
-    /// Parse a word-sized section length according to the DWARF format.
-    #[inline]
-    fn read_length(&mut self, format: Format) -> Result<Self::Offset> {
-        self.read_word(format)
-    }
-
-    /// Parse a word-sized section offset according to the DWARF format.
-    #[inline]
-    fn read_offset(&mut self, format: Format) -> Result<Self::Offset> {
-        self.read_word(format)
-    }
-
-    /// Parse a section offset of the given size.
-    ///
-    /// This is used for `DW_FORM_ref_addr` values in DWARF version 2.
-    fn read_sized_offset(&mut self, size: u8) -> Result<Self::Offset> {
-        match size {
-            1 => self.read_u8().map(u64::from),
-            2 => self.read_u16().map(u64::from),
-            4 => self.read_u32().map(u64::from),
-            8 => self.read_u64(),
-            otherwise => Err(Error::UnsupportedOffsetSize(otherwise)),
-        }
-        .and_then(Self::Offset::from_u64)
-    }
-}