Struct `DyldCacheHeader`

struct DyldCacheHeader<E: Endian> { ... }

The dyld cache header. Corresponds to struct dyld_cache_header from dyld_cache_format.h. This header has grown over time. Only the fields up to and including dyld_base_address are guaranteed to be present. For all other fields, check the header size before accessing the field. The header size is stored in mapping_offset; the mappings start right after the theader.

Fields

magic: [u8; 16]: e.g. "dyld_v0 i386"
mapping_offset: crate::endian::U32<E>: file offset to first dyld_cache_mapping_info
mapping_count: crate::endian::U32<E>: number of dyld_cache_mapping_info entries
images_offset: crate::endian::U32<E>: file offset to first dyld_cache_image_info
images_count: crate::endian::U32<E>: number of dyld_cache_image_info entries
dyld_base_address: crate::endian::U64<E>: base address of dyld when cache was built
local_symbols_offset: crate::endian::U64<E>: file offset of where local symbols are stored
local_symbols_size: crate::endian::U64<E>: size of local symbols information
uuid: [u8; 16]: unique value for each shared cache file
subcaches_offset: crate::endian::U32<E>: file offset to first dyld_subcache_info
subcaches_count: crate::endian::U32<E>: number of dyld_subcache_info entries
symbols_subcache_uuid: [u8; 16]: the UUID of the .symbols subcache
images_across_all_subcaches_offset: crate::endian::U32<E>: file offset to first dyld_cache_image_info Use this instead of images_offset if mapping_offset is at least 0x1c4.
images_across_all_subcaches_count: crate::endian::U32<E>: number of dyld_cache_image_info entries Use this instead of images_count if mapping_offset is at least 0x1c4.

Implementations

`impl<E: Endian> macho::DyldCacheHeader<E>`

fn parse<'data, R: ReadRef<'data>>(data: R) -> Result<&'data Self>

Read the dyld cache header.

fn parse_magic(self: &Self) -> Result<(Architecture, E)>

Returns (arch, endian) based on the magic string.

fn mappings<'data, R: ReadRef<'data>>(self: &Self, endian: E, data: R) -> Result<&'data [macho::DyldCacheMappingInfo<E>]>

Return the mapping information table.

fn subcaches<'data, R: ReadRef<'data>>(self: &Self, endian: E, data: R) -> Result<Option<DyldSubCacheSlice<'data, E>>>

Return the information about subcaches, if present.

Returns None for dyld caches produced before dyld-940 (macOS 12).

fn symbols_subcache_uuid(self: &Self, endian: E) -> Option<[u8; 16]>

Return the UUID for the .symbols subcache, if present.

fn images<'data, R: ReadRef<'data>>(self: &Self, endian: E, data: R) -> Result<&'data [macho::DyldCacheImageInfo<E>]>

Return the image information table.

`impl<E> Freeze for DyldCacheHeader<E>`

`impl<E> RefUnwindSafe for DyldCacheHeader<E>`

`impl<E> Send for DyldCacheHeader<E>`

`impl<E> Sync for DyldCacheHeader<E>`

`impl<E> Unpin for DyldCacheHeader<E>`

`impl<E> UnwindSafe for DyldCacheHeader<E>`

`impl<E: $crate::clone::Clone + Endian> Clone for DyldCacheHeader<E>`

fn clone(self: &Self) -> DyldCacheHeader<E>

`impl<E: $crate::fmt::Debug + Endian> Debug for DyldCacheHeader<E>`

fn fmt(self: &Self, f: &mut $crate::fmt::Formatter<'_>) -> $crate::fmt::Result

`impl<E: $crate::marker::Copy + Endian> Copy for DyldCacheHeader<E>`

`impl<E: Endian> Pod for DyldCacheHeader<E>`

`impl<T> Any for DyldCacheHeader<E>`

fn type_id(self: &Self) -> TypeId

`impl<T> Borrow for DyldCacheHeader<E>`

fn borrow(self: &Self) -> &T

`impl<T> BorrowMut for DyldCacheHeader<E>`

fn borrow_mut(self: &mut Self) -> &mut T

`impl<T> CloneToUninit for DyldCacheHeader<E>`

unsafe fn clone_to_uninit(self: &Self, dest: *mut u8)

`impl<T> From for DyldCacheHeader<E>`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> ToOwned for DyldCacheHeader<E>`

fn to_owned(self: &Self) -> T
fn clone_into(self: &Self, target: &mut T)

`impl<T, U> Into for DyldCacheHeader<E>`

fn into(self: Self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for DyldCacheHeader<E>`

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

`impl<T, U> TryInto for DyldCacheHeader<E>`

fn try_into(self: Self) -> Result<U, <U as TryFrom<T>>::Error>