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/// Full Windows crash context
pub struct CrashContext {
/// The information on the exception.
///
/// Note that this is a pointer into the actual memory of the crashed process,
/// and is a pointer to an [EXCEPTION_POINTERS](https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-exception_pointers)
pub exception_pointers: *const EXCEPTION_POINTERS,
/// The top level exception code from the exception_pointers. This is provided
/// so that external processes don't need to use `ReadProcessMemory` to inspect
/// the exception code
pub exception_code: i32,
/// The pid of the process that crashed
pub process_id: u32,
/// The thread id on which the exception occurred
pub thread_id: u32,
}
#[link(name = "kernel32")]
extern "system" {
#[link_name = "RtlCaptureContext"]
pub fn capture_context(ctx_rec: *mut CONTEXT);
}
cfg_if::cfg_if! {
if #[cfg(target_arch = "x86_64")] {
#[repr(C, align(16))]
pub struct M128A {
pub Low: u64,
pub High: i64,
}
#[repr(C)]
pub struct CONTEXT_0_0 {
pub Header: [M128A; 2],
pub Legacy: [M128A; 8],
pub Xmm0: M128A,
pub Xmm1: M128A,
pub Xmm2: M128A,
pub Xmm3: M128A,
pub Xmm4: M128A,
pub Xmm5: M128A,
pub Xmm6: M128A,
pub Xmm7: M128A,
pub Xmm8: M128A,
pub Xmm9: M128A,
pub Xmm10: M128A,
pub Xmm11: M128A,
pub Xmm12: M128A,
pub Xmm13: M128A,
pub Xmm14: M128A,
pub Xmm15: M128A,
}
#[repr(C, align(16))]
pub struct XSAVE_FORMAT {
pub ControlWord: u16,
pub StatusWord: u16,
pub TagWord: u8,
pub Reserved1: u8,
pub ErrorOpcode: u16,
pub ErrorOffset: u32,
pub ErrorSelector: u16,
pub Reserved2: u16,
pub DataOffset: u32,
pub DataSelector: u16,
pub Reserved3: u16,
pub MxCsr: u32,
pub MxCsr_Mask: u32,
pub FloatRegisters: [M128A; 8],
pub XmmRegisters: [M128A; 16],
pub Reserved4: [u8; 96],
}
#[repr(C)]
pub union CONTEXT_0 {
pub FltSave: std::mem::ManuallyDrop<XSAVE_FORMAT>,
pub Anonymous: std::mem::ManuallyDrop<CONTEXT_0_0>,
}
#[repr(C, align(16))]
pub struct CONTEXT {
pub P1Home: u64,
pub P2Home: u64,
pub P3Home: u64,
pub P4Home: u64,
pub P5Home: u64,
pub P6Home: u64,
pub ContextFlags: u32,
pub MxCsr: u32,
pub SegCs: u16,
pub SegDs: u16,
pub SegEs: u16,
pub SegFs: u16,
pub SegGs: u16,
pub SegSs: 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,
pub Anonymous: CONTEXT_0,
pub VectorRegister: [M128A; 26],
pub VectorControl: u64,
pub DebugControl: u64,
pub LastBranchToRip: u64,
pub LastBranchFromRip: u64,
pub LastExceptionToRip: u64,
pub LastExceptionFromRip: u64,
}
} else if #[cfg(target_arch = "x86")] {
#[repr(C)]
pub struct FLOATING_SAVE_AREA {
pub ControlWord: u32,
pub StatusWord: u32,
pub TagWord: u32,
pub ErrorOffset: u32,
pub ErrorSelector: u32,
pub DataOffset: u32,
pub DataSelector: u32,
pub RegisterArea: [u8; 80],
pub Spare0: u32,
}
#[repr(C, packed(4))]
pub struct CONTEXT {
pub ContextFlags: u32,
pub Dr0: u32,
pub Dr1: u32,
pub Dr2: u32,
pub Dr3: u32,
pub Dr6: u32,
pub Dr7: u32,
pub FloatSave: FLOATING_SAVE_AREA,
pub SegGs: u32,
pub SegFs: u32,
pub SegEs: u32,
pub SegDs: 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 SegCs: u32,
pub EFlags: u32,
pub Esp: u32,
pub SegSs: u32,
pub ExtendedRegisters: [u8; 512],
}
} else if #[cfg(target_arch = "aarch64")] {
#[repr(C)]
pub struct ARM64_NT_NEON128_0 {
pub Low: u64,
pub High: i64,
}
#[repr(C)]
pub union ARM64_NT_NEON128 {
pub Anonymous: std::mem::ManuallyDrop<ARM64_NT_NEON128_0>,
pub D: [f64; 2],
pub S: [f32; 4],
pub H: [u16; 8],
pub B: [u8; 16],
}
#[repr(C)]
pub struct CONTEXT_0_0 {
pub X0: u64,
pub X1: u64,
pub X2: u64,
pub X3: u64,
pub X4: u64,
pub X5: u64,
pub X6: u64,
pub X7: u64,
pub X8: u64,
pub X9: u64,
pub X10: u64,
pub X11: u64,
pub X12: u64,
pub X13: u64,
pub X14: u64,
pub X15: u64,
pub X16: u64,
pub X17: u64,
pub X18: u64,
pub X19: u64,
pub X20: u64,
pub X21: u64,
pub X22: u64,
pub X23: u64,
pub X24: u64,
pub X25: u64,
pub X26: u64,
pub X27: u64,
pub X28: u64,
pub Fp: u64,
pub Lr: u64,
}
#[repr(C)]
pub union CONTEXT_0 {
pub Anonymous: std::mem::ManuallyDrop<CONTEXT_0_0>,
pub X: [u64; 31],
}
#[repr(C, align(16))]
pub struct CONTEXT {
pub ContextFlags: u32,
pub Cpsr: u32,
pub Anonymous: CONTEXT_0,
pub Sp: u64,
pub Pc: u64,
pub V: [ARM64_NT_NEON128; 32],
pub Fpcr: u32,
pub Fpsr: u32,
pub Bcr: [u32; 8],
pub Bvr: [u64; 8],
pub Wcr: [u32; 2],
pub Wvr: [u64; 2],
}
}
}
pub type NTSTATUS = i32;
pub type BOOL = i32;
#[repr(C)]
pub struct EXCEPTION_RECORD {
pub ExceptionCode: NTSTATUS,
pub ExceptionFlags: u32,
pub ExceptionRecord: *mut EXCEPTION_RECORD,
pub ExceptionAddress: *mut std::ffi::c_void,
pub NumberParameters: u32,
pub ExceptionInformation: [usize; 15],
}
#[repr(C)]
pub struct EXCEPTION_POINTERS {
pub ExceptionRecord: *mut EXCEPTION_RECORD,
pub ContextRecord: *mut CONTEXT,
}