Deleted vendor folder

1 files changed, 0 insertions, 333 deletions

diff --git a/vendor/backtrace/src/symbolize/gimli/macho.rs b/vendor/backtrace/src/symbolize/gimli/macho.rs
deleted file mode 100644
index 74ed809..0000000
--- a/vendor/backtrace/src/symbolize/gimli/macho.rs
+++ /dev/null
@@ -1,333 +0,0 @@
-use super::{gimli, Box, Context, Endian, EndianSlice, Mapping, Path, Stash, Vec};
-use alloc::sync::Arc;
-use core::convert::TryInto;
-use object::macho;
-use object::read::macho::{MachHeader, Nlist, Section, Segment as _};
-use object::{Bytes, NativeEndian};
-
-#[cfg(target_pointer_width = "32")]
-type Mach = object::macho::MachHeader32<NativeEndian>;
-#[cfg(target_pointer_width = "64")]
-type Mach = object::macho::MachHeader64<NativeEndian>;
-type MachSegment = <Mach as MachHeader>::Segment;
-type MachSection = <Mach as MachHeader>::Section;
-type MachNlist = <Mach as MachHeader>::Nlist;
-
-impl Mapping {
-    // The loading path for macOS is so different we just have a completely
-    // different implementation of the function here. On macOS we need to go
-    // probing the filesystem for a bunch of files.
-    pub fn new(path: &Path) -> Option<Mapping> {
-        // First up we need to load the unique UUID which is stored in the macho
-        // header of the file we're reading, specified at `path`.
-        let map = super::mmap(path)?;
-        let (macho, data) = find_header(&map)?;
-        let endian = macho.endian().ok()?;
-        let uuid = macho.uuid(endian, data, 0).ok()?;
-
-        // Next we need to look for a `*.dSYM` file. For now we just probe the
-        // containing directory and look around for something that matches
-        // `*.dSYM`. Once it's found we root through the dwarf resources that it
-        // contains and try to find a macho file which has a matching UUID as
-        // the one of our own file. If we find a match that's the dwarf file we
-        // want to return.
-        if let Some(uuid) = uuid {
-            if let Some(parent) = path.parent() {
-                if let Some(mapping) = Mapping::load_dsym(parent, uuid) {
-                    return Some(mapping);
-                }
-            }
-        }
-
-        // Looks like nothing matched our UUID, so let's at least return our own
-        // file. This should have the symbol table for at least some
-        // symbolication purposes.
-        Mapping::mk(map, |data, stash| {
-            let (macho, data) = find_header(data)?;
-            let endian = macho.endian().ok()?;
-            let obj = Object::parse(macho, endian, data)?;
-            Context::new(stash, obj, None, None)
-        })
-    }
-
-    fn load_dsym(dir: &Path, uuid: [u8; 16]) -> Option<Mapping> {
-        for entry in dir.read_dir().ok()? {
-            let entry = entry.ok()?;
-            let filename = match entry.file_name().into_string() {
-                Ok(name) => name,
-                Err(_) => continue,
-            };
-            if !filename.ends_with(".dSYM") {
-                continue;
-            }
-            let candidates = entry.path().join("Contents/Resources/DWARF");
-            if let Some(mapping) = Mapping::try_dsym_candidate(&candidates, uuid) {
-                return Some(mapping);
-            }
-        }
-        None
-    }
-
-    fn try_dsym_candidate(dir: &Path, uuid: [u8; 16]) -> Option<Mapping> {
-        // Look for files in the `DWARF` directory which have a matching uuid to
-        // the original object file. If we find one then we found the debug
-        // information.
-        for entry in dir.read_dir().ok()? {
-            let entry = entry.ok()?;
-            let map = super::mmap(&entry.path())?;
-            let candidate = Mapping::mk(map, |data, stash| {
-                let (macho, data) = find_header(data)?;
-                let endian = macho.endian().ok()?;
-                let entry_uuid = macho.uuid(endian, data, 0).ok()??;
-                if entry_uuid != uuid {
-                    return None;
-                }
-                let obj = Object::parse(macho, endian, data)?;
-                Context::new(stash, obj, None, None)
-            });
-            if let Some(candidate) = candidate {
-                return Some(candidate);
-            }
-        }
-
-        None
-    }
-}
-
-fn find_header(data: &'_ [u8]) -> Option<(&'_ Mach, &'_ [u8])> {
-    use object::endian::BigEndian;
-
-    let desired_cpu = || {
-        if cfg!(target_arch = "x86") {
-            Some(macho::CPU_TYPE_X86)
-        } else if cfg!(target_arch = "x86_64") {
-            Some(macho::CPU_TYPE_X86_64)
-        } else if cfg!(target_arch = "arm") {
-            Some(macho::CPU_TYPE_ARM)
-        } else if cfg!(target_arch = "aarch64") {
-            Some(macho::CPU_TYPE_ARM64)
-        } else {
-            None
-        }
-    };
-
-    let mut data = Bytes(data);
-    match data
-        .clone()
-        .read::<object::endian::U32<NativeEndian>>()
-        .ok()?
-        .get(NativeEndian)
-    {
-        macho::MH_MAGIC_64 | macho::MH_CIGAM_64 | macho::MH_MAGIC | macho::MH_CIGAM => {}
-
-        macho::FAT_MAGIC | macho::FAT_CIGAM => {
-            let mut header_data = data;
-            let endian = BigEndian;
-            let header = header_data.read::<macho::FatHeader>().ok()?;
-            let nfat = header.nfat_arch.get(endian);
-            let arch = (0..nfat)
-                .filter_map(|_| header_data.read::<macho::FatArch32>().ok())
-                .find(|arch| desired_cpu() == Some(arch.cputype.get(endian)))?;
-            let offset = arch.offset.get(endian);
-            let size = arch.size.get(endian);
-            data = data
-                .read_bytes_at(offset.try_into().ok()?, size.try_into().ok()?)
-                .ok()?;
-        }
-
-        macho::FAT_MAGIC_64 | macho::FAT_CIGAM_64 => {
-            let mut header_data = data;
-            let endian = BigEndian;
-            let header = header_data.read::<macho::FatHeader>().ok()?;
-            let nfat = header.nfat_arch.get(endian);
-            let arch = (0..nfat)
-                .filter_map(|_| header_data.read::<macho::FatArch64>().ok())
-                .find(|arch| desired_cpu() == Some(arch.cputype.get(endian)))?;
-            let offset = arch.offset.get(endian);
-            let size = arch.size.get(endian);
-            data = data
-                .read_bytes_at(offset.try_into().ok()?, size.try_into().ok()?)
-                .ok()?;
-        }
-
-        _ => return None,
-    }
-
-    Mach::parse(data.0, 0).ok().map(|h| (h, data.0))
-}
-
-// This is used both for executables/libraries and source object files.
-pub struct Object<'a> {
-    endian: NativeEndian,
-    data: &'a [u8],
-    dwarf: Option<&'a [MachSection]>,
-    syms: Vec<(&'a [u8], u64)>,
-    syms_sort_by_name: bool,
-    // Only set for executables/libraries, and not the source object files.
-    object_map: Option<object::ObjectMap<'a>>,
-    // The outer Option is for lazy loading, and the inner Option allows load errors to be cached.
-    object_mappings: Box<[Option<Option<Mapping>>]>,
-}
-
-impl<'a> Object<'a> {
-    fn parse(mach: &'a Mach, endian: NativeEndian, data: &'a [u8]) -> Option<Object<'a>> {
-        let is_object = mach.filetype(endian) == object::macho::MH_OBJECT;
-        let mut dwarf = None;
-        let mut syms = Vec::new();
-        let mut syms_sort_by_name = false;
-        let mut commands = mach.load_commands(endian, data, 0).ok()?;
-        let mut object_map = None;
-        let mut object_mappings = Vec::new();
-        while let Ok(Some(command)) = commands.next() {
-            if let Some((segment, section_data)) = MachSegment::from_command(command).ok()? {
-                // Object files should have all sections in a single unnamed segment load command.
-                if segment.name() == b"__DWARF" || (is_object && segment.name() == b"") {
-                    dwarf = segment.sections(endian, section_data).ok();
-                }
-            } else if let Some(symtab) = command.symtab().ok()? {
-                let symbols = symtab.symbols::<Mach, _>(endian, data).ok()?;
-                syms = symbols
-                    .iter()
-                    .filter_map(|nlist: &MachNlist| {
-                        let name = nlist.name(endian, symbols.strings()).ok()?;
-                        if name.len() > 0 && nlist.is_definition() {
-                            Some((name, u64::from(nlist.n_value(endian))))
-                        } else {
-                            None
-                        }
-                    })
-                    .collect();
-                if is_object {
-                    // We never search object file symbols by address.
-                    // Instead, we already know the symbol name from the executable, and we
-                    // need to search by name to find the matching symbol in the object file.
-                    syms.sort_unstable_by_key(|(name, _)| *name);
-                    syms_sort_by_name = true;
-                } else {
-                    syms.sort_unstable_by_key(|(_, addr)| *addr);
-                    let map = symbols.object_map(endian);
-                    object_mappings.resize_with(map.objects().len(), || None);
-                    object_map = Some(map);
-                }
-            }
-        }
-
-        Some(Object {
-            endian,
-            data,
-            dwarf,
-            syms,
-            syms_sort_by_name,
-            object_map,
-            object_mappings: object_mappings.into_boxed_slice(),
-        })
-    }
-
-    pub fn section(&self, _: &Stash, name: &str) -> Option<&'a [u8]> {
-        let name = name.as_bytes();
-        let dwarf = self.dwarf?;
-        let section = dwarf.into_iter().find(|section| {
-            let section_name = section.name();
-            section_name == name || {
-                section_name.starts_with(b"__")
-                    && name.starts_with(b".")
-                    && &section_name[2..] == &name[1..]
-            }
-        })?;
-        Some(section.data(self.endian, self.data).ok()?)
-    }
-
-    pub fn search_symtab<'b>(&'b self, addr: u64) -> Option<&'b [u8]> {
-        debug_assert!(!self.syms_sort_by_name);
-        let i = match self.syms.binary_search_by_key(&addr, |(_, addr)| *addr) {
-            Ok(i) => i,
-            Err(i) => i.checked_sub(1)?,
-        };
-        let (sym, _addr) = self.syms.get(i)?;
-        Some(sym)
-    }
-
-    /// Try to load a context for an object file.
-    ///
-    /// If dsymutil was not run, then the DWARF may be found in the source object files.
-    pub(super) fn search_object_map<'b>(&'b mut self, addr: u64) -> Option<(&Context<'b>, u64)> {
-        // `object_map` contains a map from addresses to symbols and object paths.
-        // Look up the address and get a mapping for the object.
-        let object_map = self.object_map.as_ref()?;
-        let symbol = object_map.get(addr)?;
-        let object_index = symbol.object_index();
-        let mapping = self.object_mappings.get_mut(object_index)?;
-        if mapping.is_none() {
-            // No cached mapping, so create it.
-            *mapping = Some(object_mapping(object_map.objects().get(object_index)?));
-        }
-        let cx: &'b Context<'static> = &mapping.as_ref()?.as_ref()?.cx;
-        // Don't leak the `'static` lifetime, make sure it's scoped to just ourselves.
-        let cx = unsafe { core::mem::transmute::<&'b Context<'static>, &'b Context<'b>>(cx) };
-
-        // We must translate the address in order to be able to look it up
-        // in the DWARF in the object file.
-        debug_assert!(cx.object.syms.is_empty() || cx.object.syms_sort_by_name);
-        let i = cx
-            .object
-            .syms
-            .binary_search_by_key(&symbol.name(), |(name, _)| *name)
-            .ok()?;
-        let object_symbol = cx.object.syms.get(i)?;
-        let object_addr = addr
-            .wrapping_sub(symbol.address())
-            .wrapping_add(object_symbol.1);
-        Some((cx, object_addr))
-    }
-}
-
-fn object_mapping(path: &[u8]) -> Option<Mapping> {
-    use super::mystd::ffi::OsStr;
-    use super::mystd::os::unix::prelude::*;
-
-    let map;
-
-    // `N_OSO` symbol names can be either `/path/to/object.o` or `/path/to/archive.a(object.o)`.
-    let member_name = if let Some((archive_path, member_name)) = split_archive_path(path) {
-        map = super::mmap(Path::new(OsStr::from_bytes(archive_path)))?;
-        Some(member_name)
-    } else {
-        map = super::mmap(Path::new(OsStr::from_bytes(path)))?;
-        None
-    };
-    Mapping::mk(map, |data, stash| {
-        let data = match member_name {
-            Some(member_name) => {
-                let archive = object::read::archive::ArchiveFile::parse(data).ok()?;
-                let member = archive
-                    .members()
-                    .filter_map(Result::ok)
-                    .find(|m| m.name() == member_name)?;
-                member.data(data).ok()?
-            }
-            None => data,
-        };
-        let (macho, data) = find_header(data)?;
-        let endian = macho.endian().ok()?;
-        let obj = Object::parse(macho, endian, data)?;
-        Context::new(stash, obj, None, None)
-    })
-}
-
-fn split_archive_path(path: &[u8]) -> Option<(&[u8], &[u8])> {
-    let (last, path) = path.split_last()?;
-    if *last != b')' {
-        return None;
-    }
-    let index = path.iter().position(|&x| x == b'(')?;
-    let (archive, rest) = path.split_at(index);
-    Some((archive, &rest[1..]))
-}
-
-pub(super) fn handle_split_dwarf<'data>(
-    _package: Option<&gimli::DwarfPackage<EndianSlice<'data, Endian>>>,
-    _stash: &'data Stash,
-    _load: addr2line::SplitDwarfLoad<EndianSlice<'data, Endian>>,
-) -> Option<Arc<gimli::Dwarf<EndianSlice<'data, Endian>>>> {
-    None
-}