Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 2437 insertions, 0 deletions

diff --git a/third_party/rust/minidump-common/src/format.rs b/third_party/rust/minidump-common/src/format.rs
new file mode 100644
index 0000000000..269d26f7bd
--- /dev/null
+++ b/third_party/rust/minidump-common/src/format.rs
@@ -0,0 +1,2437 @@
+//! Minidump structure definitions.
+//!
+//! Types defined here should match those defined in [Microsoft's headers][msdn]. Additionally
+//! some [Breakpad][breakpad] and [Crashpad][crashpad] extension types are defined here and should
+//! match the definitions from those projects.
+//!
+//! # Type Layouts
+//!
+//! This library isn't a "proper" minidump-sys library because it doesn't use repr attributes
+//! to force Rust to layout these structs identically to how they're laid out in memory.
+//!
+//! The reasons for this are 3-fold:
+//!
+//! 1. It isn't necessary because we specify how to serialize/deserialize things with `scroll`
+//!    via `derive(Pread, Pwrite)` which uses the declared field order and not the in-memory
+//!    layout, and assumes everything is packed anyway, which as a rule, minidump types are.
+//!    Specifically they're packed to align 4, but Microsoft is mercifully very attentive to
+//!    its type layouts so we're not aware of anywhere where packing to align 1 would change
+//!    offsets. Packing is mostly just there so 32-bit and 64-bit definitely agree on offsets.
+//!
+//! 2. We would have to mark several types as `repr(packed(4))`, making them dangerous to use
+//!    as several of the fields would become misaligned. This would create a bunch of
+//!    unnecessary and brittle `unsafe`.
+//!
+//! 3. It's not *actually* that useful to have structs with precise in-memory layouts since
+//!    a minidump parser needs to accept both little-endian and big-endian minidumps, and
+//!    is therefore swizzling the bytes of all the values anyway. Also it's dangerous to
+//!    reinterpret a pile of memory as arbitrary types without validation!
+//!
+//! [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/
+//! [breakpad]: https://chromium.googlesource.com/breakpad/breakpad/
+//! [crashpad]: https://chromium.googlesource.com/crashpad/crashpad/+/master/README.md
+#![allow(non_camel_case_types)]
+#![allow(non_upper_case_globals)]
+
+use std::fmt;
+
+use bitflags::bitflags;
+use enum_primitive_derive::Primitive;
+use scroll::{Endian, Pread, Pwrite, SizeWith};
+use smart_default::SmartDefault;
+
+/// An offset from the start of the minidump file.
+pub type RVA = u32;
+pub type RVA64 = u64;
+
+/// The 4-byte magic number at the start of a minidump file.
+///
+/// In little endian this spells 'MDMP'.
+pub const MINIDUMP_SIGNATURE: u32 = 0x504d444d;
+
+/// The version of the minidump format.
+pub const MINIDUMP_VERSION: u32 = 42899;
+
+/// The header at the start of a minidump file.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_header
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_HEADER {
+    /// This should be [`MINIDUMP_SIGNATURE`][signature].
+    ///
+    /// [signature]: constant.MINIDUMP_SIGNATURE.html
+    pub signature: u32,
+    /// This should be [`MINIDUMP_VERSION`][version].
+    ///
+    /// [version]: constant.MINIDUMP_VERSION.html
+    pub version: u32,
+    /// The number of streams contained in the stream directory.
+    pub stream_count: u32,
+    /// The offset to the stream directory within the minidump. This usually points
+    /// to immediately after the header. The stream directory is an array containing
+    /// `stream_count` [`MINIDUMP_DIRECTORY`][dir] entries.
+    ///
+    /// [dir]: struct.MINIDUMP_DIRECTORY.html
+    pub stream_directory_rva: RVA,
+    pub checksum: u32,
+    pub time_date_stamp: u32,
+    pub flags: u64,
+}
+
+/// A location within a minidump file comprised of an offset and a size.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_location_descriptor
+#[derive(Debug, Copy, Default, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_LOCATION_DESCRIPTOR {
+    /// The size of this data.
+    pub data_size: u32,
+    /// The offset to this data within the minidump file.
+    pub rva: RVA,
+}
+
+impl From<u8> for MINIDUMP_LOCATION_DESCRIPTOR {
+    fn from(_val: u8) -> Self {
+        Self::default()
+    }
+}
+
+/// A range of memory contained within a minidump consisting of a base address and a
+/// location descriptor.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory_descriptor
+#[derive(Debug, Copy, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_MEMORY_DESCRIPTOR {
+    /// The base address of this memory range from the process.
+    pub start_of_memory_range: u64,
+    /// The offset and size of the actual bytes of memory contained in this dump.
+    pub memory: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+/// A large range of memory contained within a minidump (usually a full dump)
+/// consisting of a base address and a size.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory_descriptor64
+#[derive(Debug, Copy, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_MEMORY_DESCRIPTOR64 {
+    /// The base address of this memory range from the process.
+    pub start_of_memory_range: u64,
+    /// The size of this data.
+    pub data_size: u64,
+}
+
+/// Information about a data stream contained in a minidump file.
+///
+/// The minidump header contains a pointer to a list of these structs which allows locating
+/// specific streams in the dump.
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_directory
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_DIRECTORY {
+    /// This is usually one of the values in [`MINIDUMP_STREAM_TYPE`][ty] for known stream types,
+    /// but user streams can have arbitrary values.
+    ///
+    /// [ty]: enum.MINIDUMP_STREAM_TYPE.html
+    pub stream_type: u32,
+    /// The location of the stream contents within the dump.
+    pub location: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+/// The types of known minidump data streams.
+///
+/// Most of these values are derived from the [Microsoft enum][msdn] of the same name, but
+/// the values after `LastReservedStream` are Breakpad and Crashpad extensions.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ne-minidumpapiset-minidump_stream_type
+#[repr(u32)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Primitive)]
+pub enum MINIDUMP_STREAM_TYPE {
+    /// An unused stream directory entry
+    UnusedStream = 0,
+    ReservedStream0 = 1,
+    ReservedStream1 = 2,
+    /// The list of threads from the process
+    ///
+    /// See [`MINIDUMP_THREAD`].
+    ///
+    /// Microsoft declares a [`MINIDUMP_THREAD_LIST`][list] struct which is the actual format
+    /// of this stream, but it is a variable-length struct so no matching definition is provided
+    /// in this crate.
+    ///
+    /// [list]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_thread_list
+    ThreadListStream = 3,
+    /// The list of executable modules from the process
+    ///
+    /// See [`MINIDUMP_MODULE`].
+    ///
+    /// Microsoft declares a [`MINIDUMP_MODULE_LIST`][list] struct which is the actual format
+    /// of this stream, but it is a variable-length struct so no matching definition is provided
+    /// in this crate.
+    ///
+    /// [list]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_module_list
+    ModuleListStream = 4,
+    /// The list of memory regions from the process contained within this dump
+    ///
+    /// See [`MINIDUMP_MEMORY_DESCRIPTOR`].
+    ///
+    /// Microsoft declares a [`MINIDUMP_MEMORY_LIST`][list] struct which is the actual format
+    /// of this stream, but it is a variable-length struct so no matching definition is provided
+    /// in this crate.
+    ///
+    /// [list]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory_list
+    MemoryListStream = 5,
+    /// Information about the exception that caused the process to exit
+    ///
+    /// See [`MINIDUMP_EXCEPTION_STREAM`].
+    ExceptionStream = 6,
+    /// System information
+    ///
+    /// See [`MINIDUMP_SYSTEM_INFO`].
+    SystemInfoStream = 7,
+    ThreadExListStream = 8,
+    /// The list of large memory regions from the process contained within this dump
+    ///
+    /// See [`MINIDUMP_MEMORY_DESCRIPTOR64`].
+    ///
+    /// Microsoft declares a [`MINIDUMP_MEMORY64_LIST`][list] struct which is the actual format
+    /// of this stream, but it is a variable-length struct so no matching definition is provided
+    /// in this crate.
+    ///
+    /// [list]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory64_list
+    Memory64ListStream = 9,
+    CommentStreamA = 10,
+    CommentStreamW = 11,
+    HandleDataStream = 12,
+    FunctionTable = 13,
+    /// The list of executable modules from the process that were unloaded by the time of the crash
+    ///
+    /// See [`MINIDUMP_UNLOADED_MODULE`].
+    ///
+    /// Microsoft declares a [`MINIDUMP_UNLOADED_MODULE_LIST`][list] struct which is the actual
+    /// format of this stream, but it is a variable-length struct so no matching definition is
+    /// in this crate.
+    ///
+    /// Note that unlike other lists, this one has the newer "extended" header.
+    ///
+    /// [list]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_unloaded_module_list
+    UnloadedModuleListStream = 14,
+    /// Miscellaneous process and system information
+    ///
+    /// See ['MINIDUMP_MISC_INFO'].
+    MiscInfoStream = 15,
+    /// Information about memory regions from the process
+    ///
+    /// See ['MINIDUMP_MEMORY_INFO_LIST'].
+    MemoryInfoListStream = 16,
+    ThreadInfoListStream = 17,
+    HandleOperationListStream = 18,
+    TokenStream = 19,
+    JavaScriptDataStream = 20,
+    SystemMemoryInfoStream = 21,
+    ProcessVmCountersStream = 22,
+    IptTraceStream = 23,
+    /// Names of threads
+    ///
+    /// See ['MINIDUMP_THREAD_NAME'].
+    ThreadNamesStream = 24,
+    /* Windows CE types, the list  is available here https://docs.microsoft.com/en-us/previous-versions/windows/embedded/ms939649(v=msdn.10) */
+    /// Start of the Windows CE enumerated list, unused.
+    ceStreamNull = 0x00008000,
+    /// System-wide information about the device and operating system where the fault occurred. Windows CE-specific.
+    ceStreamSystemInfo = 0x00008001,
+    /// Exception record and context for the exception that caused the dump file creation. Windows CE-specific.
+    ceStreamException = 0x00008002,
+    /// Modules that were active on the device at the time the dump file was created. Windows CE-specific.
+    ceStreamModuleList = 0x00008003,
+    /// Processes that were active on the device at the time the dump file was created. Windows CE-specific.
+    ceStreamProcessList = 0x00008004,
+    /// Threads that were active on the device at the time the dump file was created. Windows CE-specific.
+    ceStreamThreadList = 0x00008005,
+    /// List of thread context records. Windows CE-specific.
+    ceStreamThreadContextList = 0x00008006,
+    /// List of thread callstack records. Windows CE-specific.
+    ceStreamThreadCallStackList = 0x00008007,
+    /// List of virtual memory dumps. Windows CE-specific.
+    ceStreamMemoryVirtualList = 0x00008008,
+    /// List of physical memory dumps. Windows CE-specific.
+    ceStreamMemoryPhysicalList = 0x00008009,
+    /// Bucketing parameters for Watson server. Windows CE-specific.
+    ceStreamBucketParameters = 0x0000800a,
+    /// Undocumented Windows CE-specific stream.
+    ceStreamProcessModuleMap = 0x0000800b,
+    /// Undocumented Windows CE-specific stream.
+    ceStreamDiagnosisList = 0x0000800c,
+    /// Last stream reserved for use by Windows Operating Systems.
+    LastReservedStream = 0x0000ffff,
+    /* Breakpad extension types.  0x4767 = "Gg" */
+    /// Additional process information (Breakpad extension)
+    ///
+    /// See ['MINIDUMP_BREAKPAD_INFO'].
+    BreakpadInfoStream = 0x47670001,
+    /// Assertion information (Breakpad extension)
+    ///
+    /// See ['MINIDUMP_ASSERTION_INFO'].
+    AssertionInfoStream = 0x47670002,
+    /* These are additional minidump stream values which are specific to
+     * the linux breakpad implementation. */
+    /// The contents of /proc/cpuinfo from a Linux system
+    LinuxCpuInfo = 0x47670003,
+    /// The contents of /proc/self/status from a Linux system
+    LinuxProcStatus = 0x47670004,
+    /// The contents of /etc/lsb-release from a Linux system
+    LinuxLsbRelease = 0x47670005,
+    /// The contents of /proc/self/cmdline from a Linux system
+    LinuxCmdLine = 0x47670006,
+    /// The contents of /proc/self/environ from a Linux system
+    LinuxEnviron = 0x47670007,
+    /// The contents of /proc/self/auxv from a Linux system
+    LinuxAuxv = 0x47670008,
+    /// The contents of /proc/self/maps from a Linux system
+    LinuxMaps = 0x47670009,
+    /// Information from the Linux dynamic linker useful for writing core dumps
+    ///
+    /// See ['DSO_DEBUG_64'] and ['DSO_DEBUG_32'].
+    LinuxDsoDebug = 0x4767000A,
+    // Crashpad extension types. 0x4350 = "CP"
+    /// Crashpad-specific information containing annotations.
+    ///
+    /// See [`MINIDUMP_CRASHPAD_INFO`].
+    CrashpadInfoStream = 0x43500001,
+
+    /// Data from the __DATA,__crash_info section of every module which contains
+    /// one that has useful data. Only available on macOS. 0x4D7A = "Mz".
+    ///
+    /// See ['MINIDUMP_MAC_CRASH_INFO'].
+    MozMacosCrashInfoStream = 0x4d7a0001,
+}
+
+impl From<MINIDUMP_STREAM_TYPE> for u32 {
+    fn from(ty: MINIDUMP_STREAM_TYPE) -> Self {
+        ty as u32
+    }
+}
+
+/// The name of a thread, found in the ThreadNamesStream.
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_THREAD_NAME {
+    /// The id of the thread.
+    pub thread_id: u32,
+    /// Where the name of the thread is stored (yes, the legendary RVA64 is real!!).
+    pub thread_name_rva: RVA64,
+}
+
+/// Information about a single module (executable or shared library) from a minidump
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_module
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_MODULE {
+    /// The base address of the executable image in memory.
+    pub base_of_image: u64,
+    /// The size of the executable image in memory, in bytes.
+    pub size_of_image: u32,
+    /// The checksum value from the PE headers.
+    pub checksum: u32,
+    /// The timestamp value from the PE headers in `time_t` format.
+    pub time_date_stamp: u32,
+    /// An offset to a length-prefixed UTF-16LE string containing the name of the module.
+    pub module_name_rva: RVA,
+    /// Version information for this module.
+    pub version_info: VS_FIXEDFILEINFO,
+    /// The location of a CodeView record describing debug information for this module.
+    ///
+    /// This should be one of [`CV_INFO_PDB70`][pdb70], [`CV_INFO_PDB20`][pdb20], or
+    /// [`CV_INFO_ELF`][elf]. `PDB70` is the most common in practice, describing a standalone PDB
+    /// file by way of GUID, age, and PDB filename, and `ELF` is a Breakpad extension for
+    /// describing ELF modules with Build IDs.
+    ///
+    /// See [Matching Debug Information][dbg] for more information.
+    ///
+    /// [dbg]: http://web.archive.org/web/20210227224734/https://www.debuginfo.com/articles/debuginfomatch.html
+    /// [pdb70]: struct.CV_INFO_PDB70.html
+    /// [pdb20]: struct.CV_INFO_PDB20.html
+    /// [elf]: struct.CV_INFO_ELF.html
+    pub cv_record: MINIDUMP_LOCATION_DESCRIPTOR,
+    /// The location of an `IMAGE_DEBUG_MISC` record describing debug information for this module.
+    pub misc_record: MINIDUMP_LOCATION_DESCRIPTOR,
+    pub reserved0: [u32; 2],
+    pub reserved1: [u32; 2],
+}
+
+/// Information about a single unloaded module (executable or shared library) from a minidump.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_unloaded_module
+#[derive(Debug, Clone, Default, Pread, SizeWith)]
+pub struct MINIDUMP_UNLOADED_MODULE {
+    /// The base address of the executable image in memory (when it was loaded).
+    pub base_of_image: u64,
+    /// The size of the executable image in memory, in bytes.
+    pub size_of_image: u32,
+    /// The checksum value from the PE headers.
+    pub checksum: u32,
+    /// The timestamp value from the PE headers in `time_t` format.
+    pub time_date_stamp: u32,
+    /// An offset to a length-prefixed UTF-16LE string containing the name of the module.
+    pub module_name_rva: RVA,
+}
+
+/// Version information for a file
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/verrsrc/ns-verrsrc-vs_fixedfileinfo
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct VS_FIXEDFILEINFO {
+    /// Contains the value of `VS_FFI_SIGNATURE`
+    pub signature: u32,
+    /// Should contain the value of `VS_FFI_STRUCVERSION`
+    pub struct_version: u32,
+    pub file_version_hi: u32,
+    pub file_version_lo: u32,
+    pub product_version_hi: u32,
+    pub product_version_lo: u32,
+    pub file_flags_mask: u32,
+    pub file_flags: u32,
+    pub file_os: u32,
+    pub file_type: u32,
+    pub file_subtype: u32,
+    pub file_date_hi: u32,
+    pub file_date_lo: u32,
+}
+
+/// The expected value of `VS_FIXEDFILEINFO.signature`
+pub const VS_FFI_SIGNATURE: u32 = 0xfeef04bd;
+
+/// The expected value of `VS_FIXEDFILEINFO.struct_version`
+pub const VS_FFI_STRUCVERSION: u32 = 0x00010000;
+
+/// Known values for the `signature` field of CodeView records
+///
+/// In addition to the two CodeView record formats used for linking
+/// to external pdb files it is possible for debugging data to be carried
+/// directly in the CodeView record itself.  These signature values will
+/// be found in the first 4 bytes of the CodeView record.  Additional values
+/// not commonly experienced in the wild are given by ["Microsoft Symbol and
+/// Type Information"][sym] section 7.2.  An in-depth description of the CodeView 4.1 format
+/// is given by ["Undocumented Windows 2000 Secrets"][win2k], Windows 2000 Debugging Support/
+/// Microsoft Symbol File Internals/CodeView Subsections.
+///
+/// [sym]: http://web.archive.org/web/20070915060650/http://www.x86.org/ftp/manuals/tools/sym.pdf
+/// [win2k]: https://dl.acm.org/citation.cfm?id=375734
+#[repr(u32)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Primitive)]
+pub enum CvSignature {
+    /// PDB 2.0 CodeView data: 'NB10': [`CV_INFO_PDB20`]
+    Pdb20 = 0x3031424e,
+    /// PDB 7.0 CodeView data: 'RSDS': [`CV_INFO_PDB70`]
+    Pdb70 = 0x53445352,
+    /// ELF Build ID, a Breakpad extension: 'BpEL': [`CV_INFO_ELF`]
+    Elf = 0x4270454c,
+    /// CodeView 4.10: 'NB09'
+    Cv41 = 0x3930424e,
+    /// CodeView 5.0: 'NB11'
+    Cv50 = 0x3131424e,
+}
+
+/// CodeView debug information in the older PDB 2.0 ("NB10") format.
+///
+/// This struct is defined as variable-length in C with a trailing PDB filename member.
+#[derive(Debug, Clone)]
+pub struct CV_INFO_PDB20 {
+    /// This field will always be [`CvSignature::Pdb20`].
+    pub cv_signature: u32,
+    pub cv_offset: u32,
+    pub signature: u32,
+    pub age: u32,
+    /// The PDB filename as a zero-terminated byte string
+    pub pdb_file_name: Vec<u8>,
+}
+
+impl<'a> scroll::ctx::TryFromCtx<'a, Endian> for CV_INFO_PDB20 {
+    type Error = scroll::Error;
+
+    fn try_from_ctx(src: &[u8], endian: Endian) -> Result<(Self, usize), Self::Error> {
+        let offset = &mut 0;
+        Ok((
+            CV_INFO_PDB20 {
+                cv_signature: src.gread_with(offset, endian)?,
+                cv_offset: src.gread_with(offset, endian)?,
+                signature: src.gread_with(offset, endian)?,
+                age: src.gread_with(offset, endian)?,
+                pdb_file_name: {
+                    let size = src.len() - *offset;
+                    src.gread_with::<&[u8]>(offset, size)?.to_owned()
+                },
+            },
+            *offset,
+        ))
+    }
+}
+
+/// CodeView debug information in the current PDB 7.0 ("RSDS") format.
+///
+/// This struct is defined as variable-length in C with a trailing PDB filename member.
+#[derive(Debug, Clone)]
+pub struct CV_INFO_PDB70 {
+    /// This will always be [`CvSignature::Pdb70`]
+    pub cv_signature: u32,
+    /// A unique identifer for a module created on first build.
+    pub signature: GUID,
+    /// A counter, incremented for each rebuild that updates the PDB file.
+    pub age: u32,
+    /// The PDB filename as a zero-terminated byte string
+    pub pdb_file_name: Vec<u8>,
+}
+
+impl<'a> scroll::ctx::TryFromCtx<'a, Endian> for CV_INFO_PDB70 {
+    type Error = scroll::Error;
+
+    fn try_from_ctx(src: &[u8], endian: Endian) -> Result<(Self, usize), Self::Error> {
+        let offset = &mut 0;
+        Ok((
+            CV_INFO_PDB70 {
+                cv_signature: src.gread_with(offset, endian)?,
+                signature: src.gread_with(offset, endian)?,
+                age: src.gread_with(offset, endian)?,
+                pdb_file_name: {
+                    let size = src.len() - *offset;
+                    src.gread_with::<&[u8]>(offset, size)?.to_owned()
+                },
+            },
+            *offset,
+        ))
+    }
+}
+
+/// A GUID as specified in Rpcdce.h
+///
+/// Matches the [Microsoft struct][msdn] of the same name.
+///
+/// # Display
+///
+/// There are two `Display` implementations for GUIDs. The regular formatting is lowercase with
+/// hyphens. The alternate formatting used with `#` is the symbol server format (uppercase without
+/// hyphens).
+///
+/// ```
+/// use minidump_common::format::GUID;
+///
+/// let guid = GUID { data1: 10, data2: 11, data3: 12, data4: [1,2,3,4,5,6,7,8] };
+///
+/// // default formatting
+/// assert_eq!("0000000a-000b-000c-0102-030405060708", guid.to_string());
+///
+/// // symbol server formatting
+/// assert_eq!("0000000A000B000C0102030405060708", format!("{:#}", guid));
+/// ```
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/guiddef/ns-guiddef-guid
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Pread, Pwrite, SizeWith)]
+pub struct GUID {
+    pub data1: u32,
+    pub data2: u16,
+    pub data3: u16,
+    pub data4: [u8; 8],
+}
+
+/// Creates a GUID from a raw byte array. It is assumed that the components in
+/// the array are in big-endian order.
+///
+/// ```
+/// use minidump_common::format::GUID;
+///
+/// let mut buf = [0u8; 16];
+/// buf[0..4].copy_from_slice(&0xdeadc0deu32.to_be_bytes());
+/// buf[4..6].copy_from_slice(&0xb105u16.to_be_bytes());
+/// buf[6..8].copy_from_slice(&0xc0deu16.to_be_bytes());
+/// buf[8..].copy_from_slice(&[1, 2, 3, 4, 5, 6, 7, 8]);
+///
+/// let guid: GUID = buf.into();
+///
+/// let expected = GUID { data1: 0xdeadc0de, data2: 0xb105, data3: 0xc0de, data4: [1, 2, 3, 4, 5, 6, 7, 8] };
+///
+/// assert_eq!(guid, expected);
+/// ```
+impl From<[u8; 16]> for GUID {
+    fn from(uuid: [u8; 16]) -> Self {
+        let data1 = (uuid[0] as u32) << 24
+            | (uuid[1] as u32) << 16
+            | (uuid[2] as u32) << 8
+            | uuid[3] as u32;
+        let data2 = (uuid[4] as u16) << 8 | uuid[5] as u16;
+        let data3 = (uuid[6] as u16) << 8 | uuid[7] as u16;
+        let mut data4 = [0u8; 8];
+        data4.copy_from_slice(&uuid[8..]);
+
+        Self {
+            data1,
+            data2,
+            data3,
+            data4,
+        }
+    }
+}
+
+impl fmt::Display for GUID {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        // NB: This formatting is not endianness aware. GUIDs read from LE minidumps are printed
+        // with reversed fields.
+        if f.alternate() {
+            write!(
+                f,
+                "{:08X}{:04X}{:04X}{:02X}{:02X}{:02X}{:02X}{:02X}{:02X}{:02X}{:02X}",
+                self.data1,
+                self.data2,
+                self.data3,
+                self.data4[0],
+                self.data4[1],
+                self.data4[2],
+                self.data4[3],
+                self.data4[4],
+                self.data4[5],
+                self.data4[6],
+                self.data4[7],
+            )
+        } else {
+            write!(
+                f,
+                "{:08x}-{:04x}-{:04x}-{:02x}{:02x}-{:02x}{:02x}{:02x}{:02x}{:02x}{:02x}",
+                self.data1,
+                self.data2,
+                self.data3,
+                self.data4[0],
+                self.data4[1],
+                self.data4[2],
+                self.data4[3],
+                self.data4[4],
+                self.data4[5],
+                self.data4[6],
+                self.data4[7],
+            )
+        }
+    }
+}
+
+/// An ELF Build ID.
+///
+/// Modern ELF toolchains insert a "[build id][buildid]" into the ELF headers that typically
+/// contains a hash of some ELF headers and sections to uniquely identify a binary. The Build ID
+/// is allowed to be an arbitrary number of bytes however, and [GNU binutils allows creating
+/// ELF binaries with Build IDs of various formats][binutils].
+///
+/// [buildid]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/developer_guide/compiling-build-id
+/// [binutils]: https://sourceware.org/binutils/docs-2.26/ld/Options.html#index-g_t_002d_002dbuild_002did-292
+#[derive(Debug, Clone)]
+pub struct CV_INFO_ELF {
+    /// This will always be [`CvSignature::Elf`]
+    pub cv_signature: u32,
+    /// The build id, a variable number of bytes
+    pub build_id: Vec<u8>,
+}
+
+impl<'a> scroll::ctx::TryFromCtx<'a, Endian> for CV_INFO_ELF {
+    type Error = scroll::Error;
+
+    fn try_from_ctx(src: &'a [u8], endian: Endian) -> Result<(Self, usize), Self::Error> {
+        let offset = &mut 0;
+        Ok((
+            CV_INFO_ELF {
+                cv_signature: src.gread_with(offset, endian)?,
+                build_id: {
+                    let size = src.len() - *offset;
+                    src.gread_with::<&[u8]>(offset, size)?.to_owned()
+                },
+            },
+            *offset,
+        ))
+    }
+}
+
+/// Obsolete debug record type defined in WinNT.h.
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct IMAGE_DEBUG_MISC {
+    pub data_type: u32,
+    pub length: u32,
+    pub unicode: u8,
+    pub reserved: [u8; 3],
+    pub data: [u8; 1],
+}
+
+/// Information about a single thread from a minidump
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_thread
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_THREAD {
+    /// The identifier of this thread
+    pub thread_id: u32,
+    /// The suspend count for this thread
+    ///
+    /// If greater than zero, the thread is suspended.
+    pub suspend_count: u32,
+    /// The priority class of the thread
+    ///
+    /// See [Scheduling Priorities][msdn] on MSDN.
+    ///
+    /// [msdn]: https://docs.microsoft.com/en-us/windows/win32/ProcThread/scheduling-priorities
+    pub priority_class: u32,
+    /// The priority level of the thread
+    pub priority: u32,
+    /// The thread environment block
+    pub teb: u64,
+    /// The location and base address of this thread's stack memory
+    pub stack: MINIDUMP_MEMORY_DESCRIPTOR,
+    /// The location of a CPU-specific `CONTEXT_` struct for this thread's CPU context
+    pub thread_context: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+/// Information about the exception that caused the process to terminate.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_exception_stream
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_EXCEPTION_STREAM {
+    /// The identifier of the thread that encountered the exception.
+    pub thread_id: u32,
+    pub __align: u32,
+    /// Detailed information about the exception encountered.
+    pub exception_record: MINIDUMP_EXCEPTION,
+    /// The offset of a CPU context record from the time the thread encountered the exception.
+    ///
+    /// The actual data will be one of the `CONTEXT_*` structs defined here.
+    pub thread_context: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+/// Detailed information about an exception.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_exception
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_EXCEPTION {
+    /// The reason the exception occurred.
+    ///
+    /// Possible values are in the following enums:
+    ///
+    /// * [`ExceptionCodeWindows`](crate::errors::ExceptionCodeWindows)
+    /// * [`WinErrorWindows`](crate::errors::WinErrorWindows)
+    /// * [`NtStatusWindows`](crate::errors::NtStatusWindows)
+    /// * [`ExceptionCodeLinux`](crate::errors::ExceptionCodeLinux)
+    /// * [`ExceptionCodeMac`](crate::errors::ExceptionCodeMac)
+    pub exception_code: u32,
+    /// Flags related to the exception.
+    ///
+    /// On Windows this is 1 for noncontinuable exceptions and 0 otherwise. For Breakpad-produced
+    /// minidumps on macOS this field is used to store additional exception information.
+    pub exception_flags: u32,
+    /// The address of an associated [`MINIDUMP_EXCEPTION`] for a nested exception.
+    ///
+    /// This address is in the minidump producing host's memory.
+    pub exception_record: u64,
+    /// The address where the exception occurred.
+    ///
+    /// For Breakpad-produced minidumps on macOS this is the exception subcode, which is
+    /// typically the address.
+    pub exception_address: u64,
+    /// The number of valid elements in [`MINIDUMP_EXCEPTION::exception_information`].
+    pub number_parameters: u32,
+    pub __align: u32,
+    /// An array of additional arguments that describe the exception.
+    ///
+    /// For most exception codes the array elements are undefined, but for access violations
+    /// the array will contain two elements: a read/write flag in the first element and
+    /// the virtual address whose access caused the exception in the second element.
+    pub exception_information: [u64; 15], // EXCEPTION_MAXIMUM_PARAMETERS
+}
+
+/// Valid bits in a `context_flags` for [`ContextFlagsCpu`]
+pub const CONTEXT_CPU_MASK: u32 = 0xffffff00;
+/// x86 and x64 contexts have this bit set in their `context_flags` when they have
+/// extra XSTATE beyond the traditional context definition.
+pub const CONTEXT_HAS_XSTATE: u32 = 0x00000040;
+
+bitflags! {
+    /// CPU type values in the `context_flags` member of `CONTEXT_` structs
+    ///
+    /// This applies to the [`CONTEXT_ARM`], [`CONTEXT_PPC`], [`CONTEXT_MIPS`],
+    /// [`CONTEXT_AMD64`], [`CONTEXT_ARM64`], [`CONTEXT_PPC64`], [`CONTEXT_SPARC`] and
+    /// [`CONTEXT_ARM64_OLD`] structs.
+    pub struct ContextFlagsCpu: u32 {
+        const CONTEXT_IA64 = 0x80000;
+        /// Super-H, includes SH3, from winnt.h in the Windows CE 5.0 SDK
+        const CONTEXT_SHX = 0xc0;
+        /// From winnt.h in the Windows CE 5.0 SDK, no longer used
+        ///
+        /// Originally used by Breakpad but changed after conflicts with other context
+        /// flag bits.
+        const CONTEXT_ARM_OLD = 0x40;
+        /// Alpha, from winnt.h in the Windows CE 5.0 SDK
+        const CONTEXT_ALPHA = 0x20000;
+        const CONTEXT_AMD64 = 0x100000;
+        const CONTEXT_ARM = 0x40000000;
+        const CONTEXT_ARM64 = 0x400000;
+        const CONTEXT_ARM64_OLD = 0x80000000;
+        const CONTEXT_MIPS = 0x40000;
+        const CONTEXT_MIPS64 = 0x80000;
+        const CONTEXT_PPC = 0x20000000;
+        const CONTEXT_PPC64 = 0x1000000;
+        const CONTEXT_SPARC = 0x10000000;
+        const CONTEXT_X86 = 0x10000;
+    }
+}
+
+impl ContextFlagsCpu {
+    /// Populate a [`ContextFlagsCpu`] with valid bits from `flags`
+    pub fn from_flags(flags: u32) -> ContextFlagsCpu {
+        ContextFlagsCpu::from_bits_truncate(flags & CONTEXT_CPU_MASK)
+    }
+}
+
+bitflags! {
+    /// Flags available for use in [`CONTEXT_AMD64.context_flags`]
+    pub struct ContextFlagsAmd64: u32 {
+        /// SegSs, Rsp, SegCs, Rip, and EFlags
+        const CONTEXT_AMD64_CONTROL = 0x00000001 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        /// Rax, Rcx, Rdx, Rbx, Rbp, Rsi, Rdi, and R8-R15
+        const CONTEXT_AMD64_INTEGER = 0x00000002 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        /// SegDs, SegEs, SegFs, and SegGs
+        const CONTEXT_AMD64_SEGMENTS = 0x00000004 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        /// Xmm0-Xmm15
+        const CONTEXT_AMD64_FLOATING_POINT = 0x00000008 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        /// Dr0-Dr3 and Dr6-Dr7
+        const CONTEXT_AMD64_DEBUG_REGISTERS = 0x00000010 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        const CONTEXT_AMD64_XSTATE = 0x00000020 | ContextFlagsCpu::CONTEXT_AMD64.bits;
+        const CONTEXT_AMD64_FULL = Self::CONTEXT_AMD64_CONTROL.bits | Self::CONTEXT_AMD64_INTEGER.bits | Self::CONTEXT_AMD64_FLOATING_POINT.bits;
+        const CONTEXT_AMD64_ALL = Self::CONTEXT_AMD64_FULL.bits | Self::CONTEXT_AMD64_SEGMENTS.bits | Self::CONTEXT_AMD64_DEBUG_REGISTERS.bits;
+    }
+}
+
+bitflags! {
+    /// Flags available for use in [`CONTEXT_X86.context_flags`]
+    pub struct ContextFlagsX86: u32 {
+        /// Ebp, Eip, SegCs, EFlags, Esp, SegSs
+        const CONTEXT_X86_CONTROL = 0x00000001 | ContextFlagsCpu::CONTEXT_X86.bits;
+        /// Edi, Esi, Ebx, Edx, Ecx, Eax
+        const CONTEXT_X86_INTEGER = 0x00000002 | ContextFlagsCpu::CONTEXT_X86.bits;
+        /// SegDs, SegEs, SegFs, and SegGs
+        const CONTEXT_X86_SEGMENTS = 0x00000004 | ContextFlagsCpu::CONTEXT_X86.bits;
+        /// Fpcr, Fpsr, Fptag, Fpioff, Fpisel, Fpdoff, Fpdsel, Mxcsr, Mxcsr_mask, Xmm0-Xmm7
+        const CONTEXT_X86_FLOATING_POINT = 0x00000008 | ContextFlagsCpu::CONTEXT_X86.bits;
+        /// Dr0-Dr3 and Dr6-Dr7
+        const CONTEXT_X86_DEBUG_REGISTERS = 0x00000010 | ContextFlagsCpu::CONTEXT_X86.bits;
+        const CONTEXT_X86_EXTENDED_REGISTERS = 0x00000020 | ContextFlagsCpu::CONTEXT_X86.bits;
+        const CONTEXT_X86_XSTATE = 0x00000040 | ContextFlagsCpu::CONTEXT_X86.bits;
+        const CONTEXT_X86_FULL = Self::CONTEXT_X86_CONTROL.bits | Self::CONTEXT_X86_INTEGER.bits | Self::CONTEXT_X86_SEGMENTS.bits;
+        const CONTEXT_X86_ALL = Self::CONTEXT_X86_FULL.bits | Self::CONTEXT_X86_FLOATING_POINT.bits | Self::CONTEXT_X86_DEBUG_REGISTERS.bits | Self::CONTEXT_X86_EXTENDED_REGISTERS.bits;
+    }
+}
+
+bitflags! {
+    /// Flags available for use in [`CONTEXT_ARM64.context_flags`]
+    pub struct ContextFlagsArm64: u32 {
+        /// FP, LR, SP, PC, and CPSR
+        const CONTEXT_ARM64_CONTROL = 0x00000001 | ContextFlagsCpu::CONTEXT_ARM64.bits;
+        /// X0-X28 (but maybe not X18)
+        const CONTEXT_ARM64_INTEGER = 0x00000002 | ContextFlagsCpu::CONTEXT_ARM64.bits;
+        /// Fpcr, Fpsr, D0-D31 (AKA Q0-Q31, AKA S0-S31)
+        const CONTEXT_ARM64_FLOATING_POINT = 0x00000004 | ContextFlagsCpu::CONTEXT_ARM64.bits;
+        /// DBGBVR, DBGBCR, DBGWVR, DBGWCR
+        const CONTEXT_ARM64_DEBUG_REGISTERS = 0x0000008 | ContextFlagsCpu::CONTEXT_ARM64.bits;
+        /// Whether x18 has a valid value, because on Windows it contains the TEB.
+        ///
+        /// NOTE: at this precise moment breakpad doesn't define this, but Microsoft does!
+        const CONTEXT_ARM64_X18 = 0x0000010 | ContextFlagsCpu::CONTEXT_ARM64.bits;
+        const CONTEXT_ARM64_FULL = Self::CONTEXT_ARM64_CONTROL.bits | Self::CONTEXT_ARM64_INTEGER.bits | Self::CONTEXT_ARM64_FLOATING_POINT.bits;
+        const CONTEXT_ARM64_ALL = Self::CONTEXT_ARM64_FULL.bits | Self::CONTEXT_ARM64_DEBUG_REGISTERS.bits | Self::CONTEXT_ARM64_X18.bits;
+    }
+}
+
+bitflags! {
+    /// Flags available for use in [`CONTEXT_ARM64_OLD.context_flags`]
+    pub struct ContextFlagsArm64Old: u32 {
+        // Yes, breakpad never defined CONTROL for this context
+
+        /// FP, LR, SP, PC, CPSR, and X0-X28
+        const CONTEXT_ARM64_OLD_INTEGER = 0x00000002 | ContextFlagsCpu::CONTEXT_ARM64_OLD.bits;
+        /// Fpcr, Fpsr, D0-D31 (AKA Q0-Q31, AKA S0-S31)
+        const CONTEXT_ARM64_OLD_FLOATING_POINT = 0x00000004 | ContextFlagsCpu::CONTEXT_ARM64_OLD.bits;
+        const CONTEXT_ARM64_OLD_FULL = Self::CONTEXT_ARM64_OLD_INTEGER.bits | Self::CONTEXT_ARM64_OLD_FLOATING_POINT.bits;
+        const CONTEXT_ARM64_OLD_ALL = Self::CONTEXT_ARM64_OLD_FULL.bits;
+    }
+}
+
+bitflags! {
+    /// Flags available for use in [`CONTEXT_ARM.context_flags`]
+    pub struct ContextFlagsArm: u32 {
+        // Yes, breakpad never defined CONTROL for this context
+
+        /// SP, LR, PC, and CPSR
+        const CONTEXT_ARM_CONTROL = 0x00000001 | ContextFlagsCpu::CONTEXT_ARM.bits;
+        /// R0-R12
+        const CONTEXT_ARM_INTEGER = 0x00000002 | ContextFlagsCpu::CONTEXT_ARM.bits;
+        /// Q0-Q15 / D0-D31 / S0-S31
+        const CONTEXT_ARM_FLOATING_POINT = 0x00000004 | ContextFlagsCpu::CONTEXT_ARM.bits;
+        /// DBGBVR, DBGBCR, DBGWVR, DBGWCR
+        const CONTEXT_ARM_DEBUG_REGISTERS = 0x00000008 | ContextFlagsCpu::CONTEXT_ARM.bits;
+        const CONTEXT_ARM_FULL = Self::CONTEXT_ARM_CONTROL.bits | Self::CONTEXT_ARM_INTEGER.bits | Self::CONTEXT_ARM_FLOATING_POINT.bits;
+        const CONTEXT_ARM_ALL = Self::CONTEXT_ARM_FULL.bits | Self::CONTEXT_ARM_DEBUG_REGISTERS.bits;
+    }
+}
+
+/// Possible contents of [`CONTEXT_AMD64::float_save`].
+///
+/// This struct matches the definition of the struct with the same name from WinNT.h.
+#[derive(Debug, SmartDefault, Clone, Pread, Pwrite, SizeWith)]
+pub struct XMM_SAVE_AREA32 {
+    pub control_word: u16,
+    pub status_word: u16,
+    pub tag_word: u8,
+    pub reserved1: u8,
+    pub error_opcode: u16,
+    pub error_offset: u32,
+    pub error_selector: u16,
+    pub reserved2: u16,
+    pub data_offset: u32,
+    pub data_selector: u16,
+    pub reserved3: u16,
+    pub mx_csr: u32,
+    pub mx_csr_mask: u32,
+    #[default([0; 8])]
+    pub float_registers: [u128; 8],
+    #[default([0; 16])]
+    pub xmm_registers: [u128; 16],
+    #[default([0; 96])]
+    pub reserved4: [u8; 96],
+}
+
+/// Possible contents of [`CONTEXT_AMD64::float_save`].
+///
+/// This is defined as an anonymous struct inside an anonymous union in
+/// the x86-64 CONTEXT struct in WinNT.h.
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct SSE_REGISTERS {
+    pub header: [u128; 2],
+    pub legacy: [u128; 8],
+    pub xmm0: u128,
+    pub xmm1: u128,
+    pub xmm2: u128,
+    pub xmm3: u128,
+    pub xmm4: u128,
+    pub xmm5: u128,
+    pub xmm6: u128,
+    pub xmm7: u128,
+    pub xmm8: u128,
+    pub xmm9: u128,
+    pub xmm10: u128,
+    pub xmm11: u128,
+    pub xmm12: u128,
+    pub xmm13: u128,
+    pub xmm14: u128,
+    pub xmm15: u128,
+}
+
+/// An x86-64 (amd64) CPU context
+///
+/// This struct matches the definition of `CONTEXT` in WinNT.h for x86-64.
+#[derive(Debug, SmartDefault, Clone, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_AMD64 {
+    pub p1_home: u64,
+    pub p2_home: u64,
+    pub p3_home: u64,
+    pub p4_home: u64,
+    pub p5_home: u64,
+    pub p6_home: u64,
+    pub context_flags: u32,
+    pub mx_csr: u32,
+    pub cs: u16,
+    pub ds: u16,
+    pub es: u16,
+    pub fs: u16,
+    pub gs: u16,
+    pub ss: u16,
+    pub eflags: u32,
+    pub dr0: u64,
+    pub dr1: u64,
+    pub dr2: u64,
+    pub dr3: u64,
+    pub dr6: u64,
+    pub dr7: u64,
+    pub rax: u64,
+    pub rcx: u64,
+    pub rdx: u64,
+    pub rbx: u64,
+    pub rsp: u64,
+    pub rbp: u64,
+    pub rsi: u64,
+    pub rdi: u64,
+    pub r8: u64,
+    pub r9: u64,
+    pub r10: u64,
+    pub r11: u64,
+    pub r12: u64,
+    pub r13: u64,
+    pub r14: u64,
+    pub r15: u64,
+    pub rip: u64,
+    /// Floating point state
+    ///
+    /// This is defined as a union in the C headers, but also
+    /// ` MAXIMUM_SUPPORTED_EXTENSION` is defined as 512 bytes.
+    ///
+    /// Callers that want to access the underlying data can use [`Pread`] to read either
+    /// an [`XMM_SAVE_AREA32`] or [`SSE_REGISTERS`] struct from this raw data as appropriate.
+    #[default([0; 512])]
+    pub float_save: [u8; 512],
+    #[default([0; 26])]
+    pub vector_register: [u128; 26],
+    pub vector_control: u64,
+    pub debug_control: u64,
+    pub last_branch_to_rip: u64,
+    pub last_branch_from_rip: u64,
+    pub last_exception_to_rip: u64,
+    pub last_exception_from_rip: u64,
+}
+
+/// ARM floating point state
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct FLOATING_SAVE_AREA_ARM {
+    pub fpscr: u64,
+    pub regs: [u64; 32],
+    pub extra: [u32; 8],
+}
+
+/// An ARM CPU context
+///
+/// This is a Breakpad extension, and does not match the definition of `CONTEXT` for ARM
+/// in WinNT.h.
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_ARM {
+    pub context_flags: u32,
+    // [r0, r1, ..., r15]
+    pub iregs: [u32; 16],
+    pub cpsr: u32,
+    pub float_save: FLOATING_SAVE_AREA_ARM,
+}
+
+/// Offsets into [`CONTEXT_ARM::iregs`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum ArmRegisterNumbers {
+    IosFramePointer = 7,
+    FramePointer = 11,
+    StackPointer = 13,
+    LinkRegister = 14,
+    ProgramCounter = 15,
+}
+
+impl ArmRegisterNumbers {
+    pub const fn name(self) -> &'static str {
+        match self {
+            Self::IosFramePointer => "r7",
+            Self::FramePointer => "r11",
+            Self::StackPointer => "r13",
+            Self::LinkRegister => "r14",
+            Self::ProgramCounter => "r15",
+        }
+    }
+}
+
+/// An old (breakpad-style) aarch64 (arm64) CPU context.
+///
+/// This is a breakpad extension, but contrary to what the name might suggest,
+/// it isn't completely out of service. I believe all non-windows platforms
+/// still prefer emitting this format to avoid needless churn.
+///
+/// Semantically this type agrees with the "new" [CONTEXT_ARM64][] and can
+/// generally be handled with all the same logic. i.e. the general purpose
+/// `iregs` are the same. It's just that the other fields are shuffled around.
+///
+/// As I understand it, this is basically an artifact of breakpad getting to
+/// arm64 "first" (Android would be first in line for it!) and picking a
+/// definition they thought was reasonable. Thankfully they picked an
+/// "out of the way" context id so that when Microsoft came along and picked
+/// their own definition, there wouldn't be a conflict.
+///
+/// Note that we have inlined the fields of the "float save" struct from
+/// breakpad's definition to be more uniform with [CONTEXT_ARM64][].
+///
+/// NOTE: if you ever decide to try to make this repr(C) and get really clever,
+/// this type is actually non-trivially repr(packed(4)) in the headers!
+#[derive(Debug, Clone, Copy, Default, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_ARM64_OLD {
+    pub context_flags: u64,
+    /// `[x0, x1, ..., x28, fp, lr]`. See [Arm64RegisterNumbers][].
+    pub iregs: [u64; 31],
+    pub sp: u64,
+    pub pc: u64,
+    pub cpsr: u32,
+    /// FPU status register.
+    pub fpsr: u32,
+    /// FPU control register.
+    pub fpcr: u32,
+    /// float/NEON registers `[d0, d1, ..., d31]`
+    pub float_regs: [u128; 32usize],
+}
+
+/// A (microsoft-style) aarch64 (arm64) CPU context
+///
+/// This matches the layout of how Windows defines this type. Breakpad defines
+/// it in an equivalent but more-quirky way that relies more on packing.
+///
+/// For general purpose registers:
+///
+/// * microsoft: make iregs have 31 values and have sp and pc as explicit fields.
+/// * breakpad make iregs have 33 values, no explicit fields.
+///
+/// For float registers:
+///
+/// * microsoft: inline the fields for float_regs, fpcr, fpsr.
+/// * breakpad: wrap them in a struct.
+///
+/// -----------------
+///
+/// Why *we* went with these definitions:
+///
+/// * ARM64 actually defines x0..x30 register names, but sp and pc aren't
+///   "x31" and "x32". Breakpad is effectively punning them as such, and
+///   that's kinda weird?
+///
+/// * Microsft's inlining of the float registers eliminates any need for
+///   padding on all platforms (note how there's always an even number of
+///   u32's before a u64, and an even number of u64's before a u128!)
+///
+/// NOTE: if you ever decide to try to make this repr(C) and get really clever,
+/// note that microsoft aligns this to 16 (and as of this writing, rust does
+/// not consistently aling u128 as such).
+#[derive(Debug, Default, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_ARM64 {
+    pub context_flags: u32,
+    pub cpsr: u32,
+    /// `[x0, x1, ..., x28, fp, lr]`. See [Arm64RegisterNumbers][].
+    pub iregs: [u64; 31],
+    pub sp: u64,
+    pub pc: u64,
+    /// float/NEON registers `[d0, d1, ..., d31]`
+    pub float_regs: [u128; 32usize],
+    /// FPU control register.
+    pub fpcr: u32,
+    /// FPU status register.
+    pub fpsr: u32,
+    pub bcr: [u32; 8],
+    pub bvr: [u64; 8],
+    pub wcr: [u32; 2],
+    pub wvr: [u64; 2],
+}
+
+/// Offsets into [`CONTEXT_ARM64::iregs`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum Arm64RegisterNumbers {
+    FramePointer = 29,
+    LinkRegister = 30,
+}
+
+impl Arm64RegisterNumbers {
+    pub const fn name(self) -> &'static str {
+        match self {
+            Self::FramePointer => "x29",
+            Self::LinkRegister => "x30",
+        }
+    }
+}
+
+/// MIPS floating point state
+#[derive(Debug, Default, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct FLOATING_SAVE_AREA_MIPS {
+    pub regs: [u64; 32],
+    pub fpcsr: u32,
+    pub fir: u32,
+}
+
+/// A MIPS CPU context
+///
+/// This is a Breakpad extension, as there is no definition of `CONTEXT` for MIPS in WinNT.h.
+#[derive(Debug, Default, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_MIPS {
+    pub context_flags: u32,
+    pub _pad0: u32,
+    pub iregs: [u64; 32],
+    pub mdhi: u64,
+    pub mdlo: u64,
+    pub hi: [u32; 3],
+    pub lo: [u32; 3],
+    pub dsp_control: u32,
+    pub _pad1: u32,
+    pub epc: u64,
+    pub badvaddr: u64,
+    pub status: u32,
+    pub cause: u32,
+    pub float_save: FLOATING_SAVE_AREA_MIPS,
+}
+
+/// Offsets into [`CONTEXT_MIPS::iregs`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum MipsRegisterNumbers {
+    S0 = 16,
+    S1 = 17,
+    S2 = 18,
+    S3 = 19,
+    S4 = 20,
+    S5 = 21,
+    S6 = 22,
+    S7 = 23,
+    GlobalPointer = 28,
+    StackPointer = 29,
+    FramePointer = 30,
+    ReturnAddress = 31,
+}
+
+impl MipsRegisterNumbers {
+    pub const fn name(self) -> &'static str {
+        match self {
+            MipsRegisterNumbers::S0 => "s0",
+            MipsRegisterNumbers::S1 => "s1",
+            MipsRegisterNumbers::S2 => "s2",
+            MipsRegisterNumbers::S3 => "s3",
+            MipsRegisterNumbers::S4 => "s4",
+            MipsRegisterNumbers::S5 => "s5",
+            MipsRegisterNumbers::S6 => "s6",
+            MipsRegisterNumbers::S7 => "s7",
+            MipsRegisterNumbers::GlobalPointer => "gp",
+            MipsRegisterNumbers::StackPointer => "sp",
+            MipsRegisterNumbers::FramePointer => "fp",
+            MipsRegisterNumbers::ReturnAddress => "ra",
+        }
+    }
+}
+
+/// PPC floating point state
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct FLOATING_SAVE_AREA_PPC {
+    pub fpregs: [u64; 32],
+    pub fpscr_pad: u32,
+    pub fpscr: u32,
+}
+
+/// PPC vector state
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct VECTOR_SAVE_AREA_PPC {
+    pub save_vr: [u128; 32],
+    pub save_vscr: u128,
+    pub save_pad5: [u32; 4],
+    pub save_vrvalid: u32,
+    pub save_pad6: [u32; 7],
+}
+
+/// A PPC CPU context
+///
+/// This is a Breakpad extension, as there is no definition of `CONTEXT` for PPC in WinNT.h.
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_PPC {
+    pub context_flags: u32,
+    pub srr0: u32,
+    pub srr1: u32,
+    pub gpr: [u32; 32],
+    pub cr: u32,
+    pub xer: u32,
+    pub lr: u32,
+    pub ctr: u32,
+    pub mq: u32,
+    pub vrsave: u32,
+    pub float_save: FLOATING_SAVE_AREA_PPC,
+    pub vector_save: VECTOR_SAVE_AREA_PPC,
+}
+
+/// Offsets into [`CONTEXT_PPC::gpr`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum PpcRegisterNumbers {
+    StackPointer = 1,
+}
+
+/// A PPC64 CPU context
+///
+/// This is a Breakpad extension, as there is no definition of `CONTEXT` for PPC64 in WinNT.h.
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_PPC64 {
+    pub context_flags: u64,
+    pub srr0: u64,
+    pub srr1: u64,
+    pub gpr: [u64; 32],
+    pub cr: u64,
+    pub xer: u64,
+    pub lr: u64,
+    pub ctr: u64,
+    pub vrsave: u64,
+    pub float_save: FLOATING_SAVE_AREA_PPC,
+    pub vector_save: VECTOR_SAVE_AREA_PPC,
+}
+
+/// Offsets into [`CONTEXT_PPC64::gpr`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum Ppc64RegisterNumbers {
+    StackPointer = 1,
+}
+
+/// SPARC floating point state
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct FLOATING_SAVE_AREA_SPARC {
+    pub regs: [u64; 32],
+    pub filler: u64,
+    pub fsr: u64,
+}
+
+/// A SPARC CPU context
+///
+/// This is a Breakpad extension, as there is no definition of `CONTEXT` for SPARC in WinNT.h.
+#[derive(Debug, Clone, Pread, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_SPARC {
+    pub context_flags: u32,
+    pub flag_pad: u32,
+    pub g_r: [u64; 32],
+    pub ccr: u64,
+    pub pc: u64,
+    pub npc: u64,
+    pub y: u64,
+    pub asi: u64,
+    pub fprs: u64,
+    pub float_save: FLOATING_SAVE_AREA_SPARC,
+}
+
+/// Offsets into [`CONTEXT_SPARC::g_r`] for registers with a dedicated or conventional purpose
+#[repr(usize)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug)]
+pub enum SparcRegisterNumbers {
+    StackPointer = 14,
+}
+
+/// x86 floating point state
+///
+/// This struct matches the definition of the `FLOATING_SAVE_AREA` struct from WinNT.h.
+#[derive(Debug, Clone, SmartDefault, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct FLOATING_SAVE_AREA_X86 {
+    pub control_word: u32,
+    pub status_word: u32,
+    pub tag_word: u32,
+    pub error_offset: u32,
+    pub error_selector: u32,
+    pub data_offset: u32,
+    pub data_selector: u32,
+    #[default([0; 80])]
+    pub register_area: [u8; 80], // SIZE_OF_80387_REGISTERS
+    pub cr0_npx_state: u32,
+}
+
+/// An x86 CPU context
+///
+/// This struct matches the definition of `CONTEXT` in WinNT.h for x86.
+#[derive(Debug, Clone, SmartDefault, Pread, Pwrite, SizeWith)]
+#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
+pub struct CONTEXT_X86 {
+    pub context_flags: u32,
+    pub dr0: u32,
+    pub dr1: u32,
+    pub dr2: u32,
+    pub dr3: u32,
+    pub dr6: u32,
+    pub dr7: u32,
+    pub float_save: FLOATING_SAVE_AREA_X86,
+    pub gs: u32,
+    pub fs: u32,
+    pub es: u32,
+    pub ds: u32,
+    pub edi: u32,
+    pub esi: u32,
+    pub ebx: u32,
+    pub edx: u32,
+    pub ecx: u32,
+    pub eax: u32,
+    pub ebp: u32,
+    pub eip: u32,
+    pub cs: u32,
+    pub eflags: u32,
+    pub esp: u32,
+    pub ss: u32,
+    #[default([0; 512])]
+    pub extended_registers: [u8; 512], // MAXIMUM_SUPPORTED_EXTENSION
+}
+
+/// CPU information contained within the [`MINIDUMP_SYSTEM_INFO`] struct
+///
+/// This struct matches the definition of the `CPU_INFORMATION` union from minidumpapiset.h.
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct CPU_INFORMATION {
+    /// `data` is defined as a union in the Microsoft headers
+    ///
+    /// It is the union of [`X86CpuInfo`], [`ARMCpuInfo`] (Breakpad-specific), and
+    /// [`OtherCpuInfo`] defined below. It does not seem possible to safely derive [`Pread`]
+    /// on an actual union, so we provide the raw data here and expect callers to use
+    /// [`Pread`] to derive the specific union representation desired.
+    pub data: [u8; 24],
+}
+
+/// x86-specific CPU information derived from the `cpuid` instruction
+///
+/// This struct matches the definition of the struct of the same name from minidumpapiset.h,
+/// which is contained within the [`CPU_INFORMATION`] union.
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct X86CpuInfo {
+    pub vendor_id: [u32; 3],
+    pub version_information: u32,
+    pub feature_information: u32,
+    pub amd_extended_cpu_features: u32,
+}
+
+/// Arm-specific CPU information (Breakpad extension)
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct ARMCpuInfo {
+    pub cpuid: u32,
+    /// Hardware capabilities
+    ///
+    /// See [`ArmElfHwCaps`] for possible values.
+    pub elf_hwcaps: u32,
+}
+
+/// CPU information for non-x86 CPUs
+///
+/// This struct matches the definition of the struct of the same name from minidumpapiset.h,
+/// which is contained within the [`CPU_INFORMATION`] union.
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct OtherCpuInfo {
+    pub processor_features: [u64; 2],
+}
+
+/// Processor and operating system information
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_system_info
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_SYSTEM_INFO {
+    /// The system's processor architecture
+    ///
+    /// Known values are defined in [`ProcessorArchitecture`].
+    pub processor_architecture: u16,
+    /// x86 (5 = 586, 6 = 686 ...) or ARM (6 = ARMv6, 7 = ARMv7 ...) CPU level
+    pub processor_level: u16,
+    /// For x86, 0xMMSS where MM=model, SS=stepping
+    pub processor_revision: u16,
+    pub number_of_processors: u8,
+    pub product_type: u8,
+    pub major_version: u32,
+    pub minor_version: u32,
+    pub build_number: u32,
+    /// The operating system platform
+    ///
+    /// Known values are defined in [`PlatformId`].
+    pub platform_id: u32,
+    pub csd_version_rva: RVA,
+    pub suite_mask: u16,
+    pub reserved2: u16,
+    pub cpu: CPU_INFORMATION,
+}
+
+/// Known values of [`MINIDUMP_SYSTEM_INFO::processor_architecture`]
+///
+/// Many of these are taken from definitions in WinNT.h, but several of them are
+/// Breakpad extensions.
+#[repr(u16)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Primitive)]
+pub enum ProcessorArchitecture {
+    PROCESSOR_ARCHITECTURE_INTEL = 0,
+    PROCESSOR_ARCHITECTURE_MIPS = 1,
+    PROCESSOR_ARCHITECTURE_ALPHA = 2,
+    PROCESSOR_ARCHITECTURE_PPC = 3,
+    PROCESSOR_ARCHITECTURE_SHX = 4,
+    PROCESSOR_ARCHITECTURE_ARM = 5,
+    PROCESSOR_ARCHITECTURE_IA64 = 6,
+    PROCESSOR_ARCHITECTURE_ALPHA64 = 7,
+    /// Microsoft Intermediate Language
+    PROCESSOR_ARCHITECTURE_MSIL = 8,
+    PROCESSOR_ARCHITECTURE_AMD64 = 9,
+    /// WoW64
+    PROCESSOR_ARCHITECTURE_IA32_ON_WIN64 = 10,
+    PROCESSOR_ARCHITECTURE_ARM64 = 12,
+    /// Breakpad-defined value for SPARC
+    PROCESSOR_ARCHITECTURE_SPARC = 0x8001,
+    /// Breakpad-defined value for PPC64
+    PROCESSOR_ARCHITECTURE_PPC64 = 0x8002,
+    /// Breakpad-defined value for ARM64
+    PROCESSOR_ARCHITECTURE_ARM64_OLD = 0x8003,
+    /// Breakpad-defined value for MIPS64
+    PROCESSOR_ARCHITECTURE_MIPS64 = 0x8004,
+    PROCESSOR_ARCHITECTURE_UNKNOWN = 0xffff,
+}
+
+/// Known values of [`MINIDUMP_SYSTEM_INFO::platform_id`]
+///
+/// The Windows values here are taken from defines in WinNT.h, but the rest are Breakpad
+/// extensions.
+#[repr(u32)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Primitive)]
+pub enum PlatformId {
+    /// Windows 3.1
+    VER_PLATFORM_WIN32s = 1,
+    /// Windows 95-98-Me
+    VER_PLATFORM_WIN32_WINDOWS = 2,
+    /// Windows NT, 2000+
+    VER_PLATFORM_WIN32_NT = 3,
+    /// Windows CE, Windows Mobile
+    VER_PLATFORM_WIN32_CE = 4,
+    /// Generic Unix-ish (Breakpad extension)
+    Unix = 0x8000,
+    /// macOS/Darwin (Breakpad extension)
+    MacOs = 0x8101,
+    /// iOS (Breakpad extension)
+    Ios = 0x8102,
+    /// Linux (Breakpad extension)
+    Linux = 0x8201,
+    /// Solaris (Breakpad extension)
+    Solaris = 0x8202,
+    /// Android (Breakpad extension)
+    Android = 0x8203,
+    /// PlayStation 3 (Breakpad extension)
+    Ps3 = 0x8204,
+    /// Native Client (Breakpad extension)
+    NaCl = 0x8205,
+}
+
+/// A date and time
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://msdn.microsoft.com/en-us/library/windows/desktop/ms724950(v=vs.85).aspx
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith, PartialEq, Eq)]
+pub struct SYSTEMTIME {
+    pub year: u16,
+    pub month: u16,
+    pub day_of_week: u16,
+    pub day: u16,
+    pub hour: u16,
+    pub minute: u16,
+    pub second: u16,
+    pub milliseconds: u16,
+}
+
+/// Settings for a time zone
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/timezoneapi/ns-timezoneapi-time_zone_information
+#[derive(Debug, Clone, Default, Pread, Pwrite, SizeWith)]
+pub struct TIME_ZONE_INFORMATION {
+    pub bias: i32,
+    pub standard_name: [u16; 32],
+    pub standard_date: SYSTEMTIME,
+    pub standard_bias: i32,
+    pub daylight_name: [u16; 32],
+    pub daylight_date: SYSTEMTIME,
+    pub daylight_bias: i32,
+}
+
+/*
+ * There are multiple versions of the misc info struct, and each new version includes all
+ * fields from the previous versions. We declare them with a macro to avoid repeating
+ * the fields excessively.
+ */
+macro_rules! multi_structs {
+    // With no trailing struct left, terminate.
+    (@next { $($prev:tt)* }) => {};
+    // Declare the next struct, including fields from previous structs.
+    (@next { $($prev:tt)* } $(#[$attr:meta])* pub struct $name:ident { $($cur:tt)* } $($tail:tt)* ) => {
+        // Prepend fields from previous structs to this struct.
+        multi_structs!($(#[$attr])* pub struct $name { $($prev)* $($cur)* } $($tail)*);
+    };
+    // Declare a single struct.
+    ($(#[$attr:meta])* pub struct $name:ident { $( pub $field:ident: $t:tt, )* } $($tail:tt)* ) => {
+        $(#[$attr])*
+        #[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+        pub struct $name {
+            $( pub $field: $t, )*
+        }
+        // Persist its fields down to the following structs.
+        multi_structs!(@next { $( pub $field: $t, )* } $($tail)*);
+    };
+}
+
+multi_structs! {
+    /// Miscellaneous process information
+    ///
+    /// This struct matches the [Microsoft struct][msdn] of the same name.
+    ///
+    /// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_misc_info
+    pub struct MINIDUMP_MISC_INFO {
+        pub size_of_info: u32,
+        pub flags1: u32,
+        pub process_id: u32,
+        pub process_create_time: u32,
+        pub process_user_time: u32,
+        pub process_kernel_time: u32,
+    }
+    // Includes fields from MINIDUMP_MISC_INFO
+    /// Miscellaneous process and system information
+    ///
+    /// This struct matches the [Microsoft struct][msdn] of the same name.
+    ///
+    /// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_misc_info_2
+    pub struct MINIDUMP_MISC_INFO_2 {
+        pub processor_max_mhz: u32,
+        pub processor_current_mhz: u32,
+        pub processor_mhz_limit: u32,
+        pub processor_max_idle_state: u32,
+        pub processor_current_idle_state: u32,
+    }
+    // Includes fields from MINIDUMP_MISC_INFO and MINIDUMP_MISC_INFO_2
+    /// Miscellaneous process and system information
+    ///
+    /// This struct matches the struct of the same name from minidumpapiset.h.
+    pub struct MINIDUMP_MISC_INFO_3 {
+        pub process_integrity_level: u32,
+        pub process_execute_flags: u32,
+        pub protected_process: u32,
+        pub time_zone_id: u32,
+        pub time_zone: TIME_ZONE_INFORMATION,
+    }
+    // Includes fields from MINIDUMP_MISC_INFO..3
+    /// Miscellaneous process and system information
+    ///
+    /// This struct matches the struct of the same name from minidumpapiset.h.
+    pub struct MINIDUMP_MISC_INFO_4 {
+        pub build_string: [u16; 260], // MAX_PATH
+        pub dbg_bld_str: [u16; 40],
+    }
+
+    // Includes fields from MINIDUMP_MISC_INFO..4
+    /// Miscellaneous process and system information
+    ///
+    /// This struct matches the struct of the same name from minidumpapiset.h.
+    pub struct MINIDUMP_MISC_INFO_5 {
+        pub xstate_data: XSTATE_CONFIG_FEATURE_MSC_INFO,
+        pub process_cookie: u32,
+    }
+}
+
+/// A descriptor of the XSAVE context, which extends a normal x86/x64 context.
+///
+/// The sections of this context are dumps of some of the CPUs registers
+/// (e.g. one section might contain the contents of the SSE registers).
+///
+/// Intel documents its XSAVE entries in Volume 1, Chapter 13 of the
+/// "Intel 64 and IA-32 Architectures Software Developer’s Manual".
+///
+///
+/// # The XSTATE Format in Minidumps
+///
+/// This format is slightly messed up in the context of minidumps because it's
+/// grafted onto Microsoft's own formats. Here's what's important to know:
+///
+/// * The "Cpu Context" and the "XSAVE context" are in fact the same regions
+/// of memory.
+///
+/// * Whether XSTATE is present or not, the classic layouts of CONTEXT_X86
+/// and [`CONTEXT_AMD64`] both apply -- xstate will only add stuff after *or*
+/// refine your understanding of memory in the existing layout. So you can
+/// safely ignore the existence of XSTATE, but you might be missing new info.
+///
+/// * AMD64 doesn't have a standard way to save general purpose registers,
+/// so the first 256 bytes of [`CONTEXT_AMD64`] are just however microsoft
+/// decided to save the registers, and will not be referred to by the XSTATE.
+///
+/// **!!! THIS PART IS IMPORTANT !!!**
+///
+/// * As a consequence, all [`XSTATE_FEATURE::offset`] values must have 256
+/// added to them to get the correct offset for that feature! For example, the
+/// LEGACY_FLOATING_POINT feature should always have an offset of 0, but it
+/// is actually at offset 256 in [`CONTEXT_AMD64`] (it corresponds to
+/// [`CONTEXT_AMD64::float_save`]).
+///
+/// * The following features are already contained inside of [`CONTEXT_AMD64`]:
+///    * LEGACY_FLOATING_POINT
+///    * LEGACY_SSE
+///    * GSSE_AND_AVX
+///
+/// * If there are XSTATE entries that *actually* map outside of the context's
+/// normal memory range, then the context's [`context_flags`](`CONTEXT_AMD64::context_flags`)
+/// will have bit 0x40 set ([`CONTEXT_HAS_XSTATE`]).
+///
+/// * [`ContextFlagsCpu::from_flags`] will mask out the [`CONTEXT_HAS_XSTATE`] bit.
+/// If you want to check for that bit, check the raw value of
+/// [`context_flags`](`CONTEXT_AMD64::context_flags`).
+
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct XSTATE_CONFIG_FEATURE_MSC_INFO {
+    /// The size of this struct.
+    pub size_of_info: u32,
+    /// The size of the XSAVE context.
+    pub context_size: u32,
+    /// The bit `enabled_features[i]` indicates that `features[i]` contains valid data.
+    pub enabled_features: u64,
+    /// The offset and size of each XSAVE entry inside the XSAVE context.
+    pub features: [XSTATE_FEATURE; 64],
+}
+
+impl Default for XSTATE_CONFIG_FEATURE_MSC_INFO {
+    fn default() -> Self {
+        Self {
+            size_of_info: std::mem::size_of::<XSTATE_CONFIG_FEATURE_MSC_INFO>() as u32,
+            context_size: 0,
+            enabled_features: 0,
+            features: [XSTATE_FEATURE::default(); 64],
+        }
+    }
+}
+
+impl XSTATE_CONFIG_FEATURE_MSC_INFO {
+    /// Gets an iterator of all the enabled features.
+    pub fn iter(&self) -> XstateFeatureIter {
+        XstateFeatureIter { info: self, idx: 0 }
+    }
+}
+
+/// An iterator of all the enabled features in an XSTATE_CONFIG_FEATURE_MSC_INFO.
+#[derive(Debug)]
+pub struct XstateFeatureIter<'a> {
+    info: &'a XSTATE_CONFIG_FEATURE_MSC_INFO,
+    idx: usize,
+}
+
+impl<'a> Iterator for XstateFeatureIter<'a> {
+    type Item = (usize, XSTATE_FEATURE);
+    fn next(&mut self) -> Option<Self::Item> {
+        while self.idx < self.info.features.len() {
+            let cur_idx = self.idx;
+            self.idx += 1;
+            if (self.info.enabled_features & (1 << cur_idx)) != 0 {
+                return Some((cur_idx, self.info.features[cur_idx]));
+            }
+        }
+        None
+    }
+}
+
+/// Several known entries in `XSTATE_CONFIG_FEATURE_MSC_INFO.features`.
+#[repr(usize)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub enum XstateFeatureIndex {
+    LEGACY_FLOATING_POINT = 0,
+    LEGACY_SSE = 1,
+    GSSE_AND_AVX = 2,
+    MPX_BNDREGS = 3,
+    MPX_BNDCSR = 4,
+    AVX512_KMASK = 5,
+    AVX512_ZMM_H = 6,
+    ACK512_ZMM = 7,
+    XSTATE_IPT = 8,
+    XSTATE_LWP = 62,
+}
+
+impl XstateFeatureIndex {
+    pub fn from_index(idx: usize) -> Option<Self> {
+        use XstateFeatureIndex::*;
+        match idx {
+            0 => Some(LEGACY_FLOATING_POINT),
+            1 => Some(LEGACY_SSE),
+            2 => Some(GSSE_AND_AVX),
+            3 => Some(MPX_BNDREGS),
+            4 => Some(MPX_BNDCSR),
+            5 => Some(AVX512_KMASK),
+            6 => Some(AVX512_ZMM_H),
+            7 => Some(ACK512_ZMM),
+            8 => Some(XSTATE_IPT),
+            62 => Some(XSTATE_LWP),
+            _ => None,
+        }
+    }
+}
+
+/// The offset and size of each XSAVE entry inside the XSAVE context.
+#[derive(Clone, Copy, Debug, Default, Pread, Pwrite, SizeWith, PartialEq, Eq)]
+pub struct XSTATE_FEATURE {
+    /// This entry's offset from the start of the context (in bytes).
+    ///
+    /// NOTE: THIS VALUE IS A LIE. At least on AMD64 you need to add 256
+    /// to this! See the docs of [`XSTATE_CONFIG_FEATURE_MSC_INFO`].
+    pub offset: u32,
+    /// This entry's size (in bytes).
+    pub size: u32,
+}
+
+// For whatever reason Pread array derives use 0u8.into() instead of Default to
+// create an initial array to write into. Weird.
+impl From<u8> for XSTATE_FEATURE {
+    fn from(_input: u8) -> Self {
+        XSTATE_FEATURE { offset: 0, size: 0 }
+    }
+}
+
+bitflags! {
+    /// Known flags for `MINIDUMP_MISC_INFO*.flags1`
+    pub struct MiscInfoFlags: u32 {
+        const MINIDUMP_MISC1_PROCESS_ID            = 0x00000001;
+        const MINIDUMP_MISC1_PROCESS_TIMES         = 0x00000002;
+        const MINIDUMP_MISC1_PROCESSOR_POWER_INFO  = 0x00000004;
+        const MINIDUMP_MISC3_PROCESS_INTEGRITY     = 0x00000010;
+        const MINIDUMP_MISC3_PROCESS_EXECUTE_FLAGS = 0x00000020;
+        const MINIDUMP_MISC3_TIMEZONE              = 0x00000040;
+        const MINIDUMP_MISC3_PROTECTED_PROCESS     = 0x00000080;
+        const MINIDUMP_MISC4_BUILDSTRING           = 0x00000100;
+        const MINIDUMP_MISC5_PROCESS_COOKIE        = 0x00000200;
+    }
+}
+
+/// A list of memory regions in a minidump
+///
+/// This is the format of the [`MINIDUMP_STREAM_TYPE::MemoryInfoListStream`]. The individual
+/// [`MINIDUMP_MEMORY_INFO`] entries follow this header in the stream.
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory_info_list
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct MINIDUMP_MEMORY_INFO_LIST {
+    /// The size of this header
+    pub size_of_header: u32,
+    /// The size of each entry in the list
+    pub size_of_entry: u32,
+    /// The number of entries in the list
+    pub number_of_entries: u64,
+}
+
+/// Information about a memory region in a minidump
+///
+/// This struct matches the [Microsoft struct][msdn] of the same name.
+///
+/// [msdn]: https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/ns-minidumpapiset-minidump_memory_info
+#[derive(Debug, Clone, PartialEq, Eq, Pread, SizeWith)]
+pub struct MINIDUMP_MEMORY_INFO {
+    /// The base address of the region of pages
+    pub base_address: u64,
+    /// The base address of a range of pages in this region
+    pub allocation_base: u64,
+    /// The memory protection when the region was initially allocated
+    ///
+    /// See [`MemoryProtection`] for valid values.
+    pub allocation_protection: u32,
+    pub __alignment1: u32,
+    /// The size of the region in which all pages have identical attributes, in bytes
+    pub region_size: u64,
+    /// The state of the pages in the region
+    ///
+    /// See [`MemoryState`] for valid values.
+    pub state: u32,
+    /// The access protection of the pages in the region
+    ///
+    /// See [`MemoryProtection`] for valid values.
+    pub protection: u32,
+    /// The type of pages in the region
+    ///
+    /// See [`MemoryType`] for valid values.
+    pub _type: u32,
+    pub __alignment2: u32,
+}
+
+bitflags! {
+    /// Potential values for [`MINIDUMP_MEMORY_INFO::state`]
+    pub struct MemoryState: u32 {
+        const MEM_COMMIT  = 0x01000;
+        const MEM_FREE    = 0x10000;
+        const MEM_RESERVE = 0x02000;
+    }
+}
+
+bitflags! {
+    /// Potential values for [`MINIDUMP_MEMORY_INFO::protection`] and `allocation_protection`
+    ///
+    /// See [Microsoft's documentation][msdn] for details.
+    ///
+    /// [msdn]: https://docs.microsoft.com/en-us/windows/win32/Memory/memory-protection-constants
+    pub struct MemoryProtection: u32 {
+        const PAGE_NOACCESS           = 0x01;
+        const PAGE_READONLY           = 0x02;
+        const PAGE_READWRITE          = 0x04;
+        const PAGE_WRITECOPY          = 0x08;
+        const PAGE_EXECUTE            = 0x10;
+        const PAGE_EXECUTE_READ       = 0x20;
+        const PAGE_EXECUTE_READWRITE  = 0x40;
+        const PAGE_EXECUTE_WRITECOPY  = 0x80;
+        const ACCESS_MASK             = 0xff;
+        const PAGE_GUARD              = 0x100;
+        const PAGE_NOCACHE            = 0x200;
+        const PAGE_WRITECOMBINE       = 0x400;
+    }
+}
+
+bitflags! {
+    /// Potential values for [`MINIDUMP_MEMORY_INFO::_type`]
+    pub struct MemoryType: u32 {
+        const MEM_PRIVATE = 0x00020000;
+        const MEM_MAPPED  = 0x00040000;
+        const MEM_IMAGE   = 0x01000000;
+    }
+}
+
+/// A Breakpad extension containing some additional process information
+///
+/// Taken from the definition in Breakpad's [minidump_format.h][fmt].
+///
+/// [fmt]: https://chromium.googlesource.com/breakpad/breakpad/+/88d8114fda3e4a7292654bd6ac0c34d6c88a8121/src/google_breakpad/common/minidump_format.h#962
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct MINIDUMP_BREAKPAD_INFO {
+    pub validity: u32,
+    /// The Thread ID of the handler thread
+    pub dump_thread_id: u32,
+    /// The Thread ID of the thread that requested the dump
+    pub requesting_thread_id: u32,
+}
+
+bitflags! {
+    /// Potential values for [`MINIDUMP_BREAKPAD_INFO::validity`]
+    ///
+    /// Taken from definitions in Breakpad's [minidump_format.h][fmt].
+    ///
+    /// [fmt]: https://chromium.googlesource.com/breakpad/breakpad/+/88d8114fda3e4a7292654bd6ac0c34d6c88a8121/src/google_breakpad/common/minidump_format.h#989
+    pub struct BreakpadInfoValid: u32 {
+        const DumpThreadId       = 1 << 0;
+        const RequestingThreadId = 1 << 1;
+    }
+}
+
+/// A Breakpad extension containing information about an assertion that terminated the process
+///
+/// Taken from the definition in Breakpad's [minidump_format.h][fmt].
+///
+/// [fmt]: https://chromium.googlesource.com/breakpad/breakpad/+/88d8114fda3e4a7292654bd6ac0c34d6c88a8121/src/google_breakpad/common/minidump_format.h#998
+#[derive(Debug, Clone, Pread, SizeWith)]
+pub struct MINIDUMP_ASSERTION_INFO {
+    /// The assertion that failed, as a 0-terminated UTF16-LE string
+    pub expression: [u16; 128],
+    /// The function containing the assertion, as a 0-terminated UTF16-LE string
+    pub function: [u16; 128],
+    /// The source file containing the assertion, as a 0-terminated UTF16-LE string
+    pub file: [u16; 128],
+    /// The line number in [`file`] containing the assertion
+    pub line: u32,
+    /// The assertion type
+    pub _type: u32,
+}
+
+/// Known values of [`MINIDUMP_ASSERTION_INFO::_type`]
+/// Taken from the definition in Breakpad's [minidump_format.h][fmt].
+///
+/// [fmt]: https://chromium.googlesource.com/breakpad/breakpad/+/88d8114fda3e4a7292654bd6ac0c34d6c88a8121/src/google_breakpad/common/minidump_format.h#1011
+#[repr(u32)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Primitive)]
+pub enum AssertionType {
+    Unknown = 0,
+    InvalidParameter = 1,
+    PureVirtualCall = 2,
+}
+
+/// Dynamic linker information for a shared library on 32-bit Linux
+///
+/// This is functionally equivalent to the data in `struct link_map` defined in <link.h>.
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct LINK_MAP_32 {
+    pub addr: u32,
+    /// The offset of a string containing the filename of this shared library
+    pub name: RVA,
+    pub ld: u32,
+}
+
+/// DSO debug data for 32-bit Linux minidumps
+///
+/// Used when converting minidumps to coredumps. This is functionally equivalent to the data
+/// in `struct r_debug` defined in <link.h>.
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct DSO_DEBUG_32 {
+    /// The version number of this protocol, from `r_debug.r_version`
+    pub version: u32,
+    /// The offset of an array of [`LINK_MAP_32`] structs
+    pub map: RVA,
+    /// The number of [`LINK_MAP_32`] entries pointed to by `map`
+    pub dso_count: u32,
+    /// The address of a function internal to the run-time linker used by debuggers to
+    /// set a breakpoint.
+    pub brk: u32,
+    /// Base address the linker is loaded at
+    pub ldbase: u32,
+    /// The address of the "dynamic structure"
+    pub dynamic: u32,
+}
+
+/// Dynamic linker information for a shared library on 64-bit Linux
+///
+/// This is functionally equivalent to the data in `struct link_map` defined in <link.h>.
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct LINK_MAP_64 {
+    pub addr: u64,
+    /// The offset of a string containing the filename of this shared library
+    pub name: RVA,
+    pub ld: u64,
+}
+
+/// DSO debug data for 64-bit Linux minidumps
+///
+/// Used when converting minidumps to coredumps. This is functionally equivalent to the data
+/// in `struct r_debug` defined in <link.h>.
+#[derive(Debug, Clone, Pread, Pwrite, SizeWith)]
+pub struct DSO_DEBUG_64 {
+    /// The version number of this protocol, from `r_debug.r_version`
+    pub version: u32,
+    /// The offset of an array of [`LINK_MAP_64`] structs
+    pub map: RVA,
+    /// The number of [`LINK_MAP_64`] entries pointed to by `map`
+    pub dso_count: u32,
+    /// The address of a function internal to the run-time linker used by debuggers to
+    /// set a breakpoint.
+    pub brk: u64,
+    /// Base address the linker is loaded at
+    pub ldbase: u64,
+    /// The address of the "dynamic structure"
+    pub dynamic: u64,
+}
+
+/// A variable-length UTF-8-encoded string carried within a minidump file.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpUTF8String.html>
+#[derive(Debug, Clone)]
+pub struct MINIDUMP_UTF8_STRING {
+    /// The length of the #Buffer field in bytes, not including the `NUL` terminator.
+    ///
+    /// This field is interpreted as a byte count, not a count of Unicode code points.
+    pub length: u32,
+    /// The string, encoded in UTF-8, and terminated with a `NUL` byte.
+    pub buffer: Vec<u8>,
+}
+
+impl<'a> scroll::ctx::TryFromCtx<'a, Endian> for MINIDUMP_UTF8_STRING {
+    type Error = scroll::Error;
+
+    fn try_from_ctx(src: &[u8], endian: Endian) -> Result<(Self, usize), Self::Error> {
+        let offset = &mut 0;
+        let length: u32 = src.gread_with(offset, endian)?;
+        let data: &[u8] = src.gread_with(offset, length as usize + 1)?; // +1 for NUL
+
+        if !data.ends_with(&[0]) {
+            return Err(scroll::Error::Custom(
+                "Minidump String does not end with NUL byte".to_owned(),
+            ));
+        }
+
+        let buffer = data.to_vec();
+        Ok((Self { length, buffer }, *offset))
+    }
+}
+
+/// A key-value pair.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpSimpleStringDictionaryEntry.html>
+#[derive(Clone, Debug, Pread, SizeWith)]
+pub struct MINIDUMP_SIMPLE_STRING_DICTIONARY_ENTRY {
+    /// RVA of a MinidumpUTF8String containing the key of a key-value pair.
+    pub key: RVA,
+    /// RVA of a MinidumpUTF8String containing the value of a key-value pair.
+    pub value: RVA,
+}
+
+/// A list of key-value pairs.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpSimpleStringDictionary.html>
+#[derive(Clone, Debug, Pread)]
+pub struct MINIDUMP_SIMPLE_STRING_DICTIONARY {
+    /// The number of key-value pairs present.
+    pub count: u32,
+}
+
+/// A list of RVA pointers.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpRVAList.html>
+#[derive(Clone, Debug, Pread)]
+pub struct MINIDUMP_RVA_LIST {
+    /// The number of pointers present.
+    pub count: u32,
+}
+
+/// A typed annotation object.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpAnnotation.html>
+#[derive(Clone, Debug, Pread)]
+pub struct MINIDUMP_ANNOTATION {
+    /// RVA of a MinidumpUTF8String containing the name of the annotation.
+    pub name: RVA,
+    /// The type of data stored in the `value` of the annotation. This may correspond to an \a
+    /// `MINIDUMP_ANNOTATION_TYPE` or it may be user-defined.
+    pub ty: u16,
+    /// This field is always `0`.
+    pub _reserved: u16,
+    /// RVA of a `MinidumpByteArray` to the data for the annotation.
+    pub value: RVA,
+}
+
+impl MINIDUMP_ANNOTATION {
+    /// An invalid annotation. Reserved for internal use.
+    ///
+    /// See <https://crashpad.chromium.org/doxygen/classcrashpad_1_1Annotation.html#a734ee64cd20afdb78acb8656ed867d34>
+    pub const TYPE_INVALID: u16 = 0;
+    /// A `NUL`-terminated C-string.
+    ///
+    /// See <https://crashpad.chromium.org/doxygen/classcrashpad_1_1Annotation.html#a734ee64cd20afdb78acb8656ed867d34>
+    pub const TYPE_STRING: u16 = 1;
+    /// Clients may declare their own custom types by using values greater than this.
+    ///
+    /// See <https://crashpad.chromium.org/doxygen/classcrashpad_1_1Annotation.html#a734ee64cd20afdb78acb8656ed867d34>
+    pub const TYPE_USER_DEFINED: u16 = 0x8000;
+}
+
+/// Additional Crashpad-specific information about a module carried within a minidump file.
+///
+/// This structure augments the information provided by MINIDUMP_MODULE. The minidump file must
+/// contain a module list stream (::kMinidumpStreamTypeModuleList) in order for this structure to
+/// appear.
+///
+/// This structure is versioned. When changing this structure, leave the existing structure intact
+/// so that earlier parsers will be able to understand the fields they are aware of, and make
+/// additions at the end of the structure. Revise #kVersion and document each field’s validity based
+/// on #version, so that newer parsers will be able to determine whether the added fields are valid
+/// or not.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpModuleCrashpadInfo.html>
+#[derive(Clone, Debug, Pread)]
+pub struct MINIDUMP_MODULE_CRASHPAD_INFO {
+    /// The structure’s version number.
+    ///
+    /// Readers can use this field to determine which other fields in the structure are valid. Upon
+    /// encountering a value greater than `VERSION`, a reader should assume that the structure’s
+    /// layout is compatible with the structure defined as having value #kVersion.
+    ///
+    /// Writers may produce values less than `VERSION` in this field if there is no need for any
+    /// fields present in later versions.
+    pub version: u32,
+    /// A `MinidumpRVAList` pointing to MinidumpUTF8String objects. The module controls the data
+    /// that appears here.
+    ///
+    /// These strings correspond to `ModuleSnapshot::AnnotationsVector()` and do not duplicate
+    /// anything in `simple_annotations` or `annotation_objects`.
+    pub list_annotations: MINIDUMP_LOCATION_DESCRIPTOR,
+    /// A `MinidumpSimpleStringDictionary` pointing to strings interpreted as key-value pairs. The
+    /// module controls the data that appears here.
+    ///
+    /// These key-value pairs correspond to `ModuleSnapshot::AnnotationsSimpleMap()` and do not
+    /// duplicate anything in `list_annotations` or `annotation_objects`.
+    pub simple_annotations: MINIDUMP_LOCATION_DESCRIPTOR,
+    /// A `MinidumpAnnotationList` object containing the annotation objects stored within the
+    /// module. The module controls the data that appears here.
+    ///
+    /// These key-value pairs correspond to `ModuleSnapshot::AnnotationObjects()` and do not
+    /// duplicate anything in `list_annotations` or `simple_annotations`.
+    pub annotation_objects: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+impl MINIDUMP_MODULE_CRASHPAD_INFO {
+    /// The structure’s version number.
+    ///
+    /// Readers can use this field to determine which other fields in the structure are valid. Upon
+    /// encountering a value greater than `VERSION`, a reader should assume that the structure’s
+    /// layout is compatible with the structure defined as having value #kVersion.
+    ///
+    /// Writers may produce values less than `VERSION` in this field if there is no need for any
+    /// fields present in later versions.
+    pub const VERSION: u32 = 1;
+}
+
+/// A link between a `MINIDUMP_MODULE` structure and additional Crashpad-specific information about a
+/// module carried within a minidump file.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpModuleCrashpadInfoLink.html>
+#[derive(Clone, Debug, Pread, SizeWith)]
+pub struct MINIDUMP_MODULE_CRASHPAD_INFO_LINK {
+    /// A link to a MINIDUMP_MODULE structure in the module list stream.
+    ///
+    /// This field is an index into `MINIDUMP_MODULE_LIST::Modules`. This field’s value must be in
+    /// the range of `MINIDUMP_MODULE_LIST::NumberOfEntries`.
+    pub minidump_module_list_index: u32,
+
+    /// A link to a MinidumpModuleCrashpadInfo structure.
+    ///
+    /// MinidumpModuleCrashpadInfo structures are accessed indirectly through
+    /// `MINIDUMP_LOCATION_DESCRIPTOR` pointers to allow for future growth of the
+    /// `MinidumpModuleCrashpadInfo` structure.
+    pub location: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+/// Additional Crashpad-specific information about modules carried within a minidump file.
+///
+/// This structure augments the information provided by `MINIDUMP_MODULE_LIST`. The minidump file
+/// must contain a module list stream (::kMinidumpStreamTypeModuleList) in order for this structure
+/// to appear.
+///
+/// `MinidumpModuleCrashpadInfoList::count` may be less than the value of
+/// `MINIDUMP_MODULE_LIST::NumberOfModules` because not every `MINIDUMP_MODULE` structure carried
+/// within the minidump file will necessarily have Crashpad-specific information provided by a
+/// `MinidumpModuleCrashpadInfo` structure.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpModuleCrashpadInfoList.html>
+#[derive(Clone, Debug, Pread)]
+pub struct MINIDUMP_MODULE_CRASHPAD_INFO_LIST {
+    /// The number of key-value pairs present.
+    pub count: u32,
+}
+
+/// Additional Crashpad-specific information carried within a minidump file.
+///
+/// This structure is versioned. When changing this structure, leave the existing structure intact
+/// so that earlier parsers will be able to understand the fields they are aware of, and make
+/// additions at the end of the structure. Revise #kVersion and document each field’s validity based
+/// on `version`, so that newer parsers will be able to determine whether the added fields are valid
+/// or not.
+///
+/// See <https://crashpad.chromium.org/doxygen/structcrashpad_1_1MinidumpCrashpadInfo.html>
+#[derive(Clone, Debug, Pread, SizeWith)]
+pub struct MINIDUMP_CRASHPAD_INFO {
+    /// The structure’s version number.
+    ///
+    /// Readers can use this field to determine which other fields in the structure are valid. Upon
+    /// encountering a value greater than `VERSION`, a reader should assume that the structure’s
+    /// layout is compatible with the structure defined as having value #kVersion.
+    ///
+    /// Writers may produce values less than `VERSION` in this field if there is no need for any
+    /// fields present in later versions.
+    pub version: u32,
+    /// A `Uuid` identifying an individual crash report.
+    ///
+    /// This provides a stable identifier for a crash even as the report is converted to different
+    /// formats, provided that all formats support storing a crash report ID.
+    ///
+    /// If no identifier is available, this field will contain zeroes.
+    pub report_id: GUID,
+    /// A `Uuid` identifying the client that crashed.
+    ///
+    /// Client identification is within the scope of the application, but it is expected that the
+    /// identifier will be unique for an instance of Crashpad monitoring an application or set of
+    /// applications for a user. The identifier shall remain stable over time.
+    ///
+    /// If no identifier is available, this field will contain zeroes.
+    pub client_id: GUID,
+    /// A MinidumpSimpleStringDictionary pointing to strings interpreted as key-value pairs.
+    ///
+    /// These key-value pairs correspond to Crashpad's `ProcessSnapshot::AnnotationsSimpleMap()`.
+    pub simple_annotations: MINIDUMP_LOCATION_DESCRIPTOR,
+    /// A pointer to a MinidumpModuleCrashpadInfoList structure.
+    pub module_list: MINIDUMP_LOCATION_DESCRIPTOR,
+}
+
+impl MINIDUMP_CRASHPAD_INFO {
+    /// The structure’s currently-defined version number.
+    pub const VERSION: u32 = 1;
+}
+
+/// MacOS __DATA,__crash_info data.
+///
+/// This is the format of the [`MINIDUMP_STREAM_TYPE::MozMacosCrashInfoStream`]. The individual
+/// [`MINIDUMP_MAC_CRASH_INFO_RECORD`] entries follow this header in the stream.
+#[derive(Debug, Pread, SizeWith)]
+pub struct MINIDUMP_MAC_CRASH_INFO {
+    pub stream_type: u32,
+    /// The number of [`MINIDUMP_MAC_CRASH_INFO_RECORD`]s.
+    pub record_count: u32,
+    /// The size of the "fixed-size" part of MINIDUMP_MAC_CRASH_INFO_RECORD.
+    /// Used to offset to the variable-length portion of the struct, where
+    /// C-strings are stored. This allows us to access all the fields we know
+    /// about, even when newer versions of this format introduce new ones.
+    pub record_start_size: u32,
+    pub records: [MINIDUMP_LOCATION_DESCRIPTOR; 20],
+}
+
+// MozMacosCrashInfoStream is a versioned format where new fields are added to
+// the end of the struct, but there are also variable-length c-string fields
+// that follow the "fixed-size" fields. As such, the versioned strings are separated
+// out into their own separate struct with the same version. So e.g.
+//
+// MINIDUMP_MAC_CRASH_INFO_RECORD_4 should be paired with MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_4
+
+multi_structs! {
+    /// Contents of MacOS's `<CrashReporterClient.h>`'s `crashreporter_annotations_t`,
+    /// but with the by-reference C-strings hoisted out to the end of the struct
+    /// and inlined (so this is a variable-length struct).
+    ///
+    /// The variable-length strings are listed in [`MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS`].
+    /// Use [`MINIDUMP_MAC_CRASH_INFO::record_start_size`] to access them.
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD {
+      pub stream_type: u64,
+      // Version of this format, currently at 5.
+      //
+      // Although theoretically this field being here means we can support multiple
+      // versions of this struct in one [`MINIDUMP_MAC_CRASH_INFO`] stream, our reliance on
+      // [`MINIDUMP_MAC_CRASH_INFO::record_start_size`] means we can't actually handle
+      // such a heterogeneous situation. So all records should have the same version value.
+      pub version: u64,
+    }
+    // Includes fields from MINIDUMP_MAC_CRASH_INFO_RECORD
+    /// Contents of MacOS's `<CrashReporterClient.h>`'s `crashreporter_annotations_t`,
+    /// but with the by-reference C-strings hoisted out to the end of the struct
+    /// and inlined (so this is a variable-length struct).
+    ///
+    /// The variable-length strings are listed in [`MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_4`].
+    /// Use [`MINIDUMP_MAC_CRASH_INFO::record_start_size`] to access them.
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD_4 {
+        pub thread: u64,
+        pub dialog_mode: u64,
+    }
+    // Includes fields from MINIDUMP_MAC_CRASH_INFO_RECORD and MINIDUMP_MAC_CRASH_INFO_RECORD_4
+    /// Contents of MacOS's `<CrashReporterClient.h>`'s `crashreporter_annotations_t`,
+    /// but with the by-reference C-strings hoisted out to the end of the struct
+    /// and inlined (so this is a variable-length struct).
+    ///
+    /// The variable-length strings are listed in [`MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_5`].
+    /// Use [`MINIDUMP_MAC_CRASH_INFO::record_start_size`] to access them.
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD_5 {
+        pub abort_cause: u64,
+    }
+}
+
+macro_rules! replace_expr {
+    ($_t:tt $sub:expr) => {
+        $sub
+    };
+}
+
+macro_rules! count_tts {
+    ($($tts:tt)*) => {0usize $(+ replace_expr!($tts 1usize))*};
+}
+
+// Like multi_structs but specialized for a struct of strings that can be set by index.
+macro_rules! multi_strings {
+    // With no trailing struct left, terminate.
+    (@next { $($prev:tt)* }) => {};
+    // Declare the next struct, including fields from previous structs.
+    (@next { $($prev:tt)* } $(#[$attr:meta])* pub struct $name:ident { $($cur:tt)* } $($tail:tt)* ) => {
+        // Prepend fields from previous structs to this struct.
+        multi_strings!($(#[$attr])* pub struct $name { $($prev)* $($cur)* } $($tail)*);
+    };
+    // Declare a single struct.
+    ($(#[$attr:meta])* pub struct $name:ident { $( pub $field:ident: $t:tt, )* } $($tail:tt)* ) => {
+        $(#[$attr])*
+        #[derive(Default, Debug, Clone)]
+        pub struct $name {
+            $( pub $field: $t, )*
+        }
+
+        impl $name {
+            pub fn num_strings() -> usize {
+                count_tts!($($t)*)
+            }
+
+            #[allow(unused_variables, unused_mut)]
+            pub fn set_string(&mut self, idx: usize, string: String) {
+                let mut cur_idx = 0;
+                $(if cur_idx == idx {
+                    self.$field = string;
+                    return;
+                }
+                cur_idx += 1;
+                )*
+                panic!("string index out of bounds {} >= {}", idx, cur_idx);
+            }
+        }
+
+        // Persist its fields down to the following structs.
+        multi_strings!(@next { $( pub $field: $t, )* } $($tail)*);
+    };
+}
+
+multi_strings! {
+    /// Variable-length data for [`MINIDUMP_MAC_CRASH_INFO_RECORD`].
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS {
+        // No strings in the base version
+    }
+
+    // Includes fields from [`MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS`]
+    /// Variable-length data for [`MINIDUMP_MAC_CRASH_INFO_RECORD_4`].
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_4 {
+        pub module_path: String,
+        pub message: String,
+        pub signature_string: String,
+        pub backtrace: String,
+        pub message2: String,
+    }
+
+    // Includes fields from [`MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_4`]
+    /// Variable-length data for [`MINIDUMP_MAC_CRASH_INFO_RECORD_5`].
+    pub struct MINIDUMP_MAC_CRASH_INFO_RECORD_STRINGS_5 {
+        // No new strings
+    }
+}
+
+/// The maximum supported size of a C-string in [`MINIDUMP_MAC_CRASH_INFO_RECORD`].
+///
+/// Assume the stream is corrupted if a string is longer than this.
+pub const MAC_CRASH_INFO_STRING_MAX_SIZE: usize = 8192;
+
+/// The maximum supported count of [`MINIDUMP_MAC_CRASH_INFO_RECORD`]s.
+///
+/// In principle there should only be one or two non-empty __DATA,__crash_info
+/// sections per process. But the __crash_info section is almost entirely
+/// undocumented, so just in case we set a large maximum.
+pub const MAC_CRASH_INFOS_MAX: usize = 20;
+
+bitflags! {
+    /// Possible values of [`ARMCpuInfo::elf_hwcaps`]
+    ///
+    /// This matches the Linux kernel definitions from [<asm/hwcaps.h>][hwcap].
+    ///
+    /// [hwcap]: https://elixir.bootlin.com/linux/latest/source/arch/arm/include/uapi/asm/hwcap.h
+    pub struct ArmElfHwCaps: u32 {
+        const HWCAP_SWP       = (1 << 0);
+        const HWCAP_HALF      = (1 << 1);
+        const HWCAP_THUMB     = (1 << 2);
+        const HWCAP_26BIT     = (1 << 3);
+        const HWCAP_FAST_MULT = (1 << 4);
+        const HWCAP_FPA       = (1 << 5);
+        const HWCAP_VFP       = (1 << 6);
+        const HWCAP_EDSP      = (1 << 7);
+        const HWCAP_JAVA      = (1 << 8);
+        const HWCAP_IWMMXT    = (1 << 9);
+        const HWCAP_CRUNCH    = (1 << 10);
+        const HWCAP_THUMBEE   = (1 << 11);
+        const HWCAP_NEON      = (1 << 12);
+        const HWCAP_VFPv3     = (1 << 13);
+        const HWCAP_VFPv3D16  = (1 << 14);
+        const HWCAP_TLS       = (1 << 15);
+        const HWCAP_VFPv4     = (1 << 16);
+        const HWCAP_IDIVA     = (1 << 17);
+        const HWCAP_IDIVT     = (1 << 18);
+        const HWCAP_VFPD32    = (1 << 19);
+        const HWCAP_IDIV      = ArmElfHwCaps::HWCAP_IDIVA.bits | Self::HWCAP_IDIVT.bits;
+        const HWCAP_LPAE      = (1 << 20);
+        const HWCAP_EVTSTRM   = (1 << 21);
+    }
+}