Struct CrashContext

#[repr(C)]
pub struct CrashContext {
    pub context: ucontext_t,
    pub float_state: fpregset_t,
    pub siginfo: signalfd_siginfo,
    pub pid: i32,
    pub tid: i32,
}

The full context for a Linux/Android crash

Fields

context: ucontext_t

Crashing thread context.

Note that we use [crate::ucontext_t] instead of libc::ucontext_t as libc’s differs between glibc and musl https://github.com/rust-lang/libc/pull/1646 even though the ucontext_t received from a signal will be the same regardless of the libc implementation used as it is only arch specific and not libc specific

Note that we hide ucontext_t::uc_link as it is a pointer and thus can’t be accessed in a process other than the one the CrashContext was created in. This is a just a self-reference so is not useful in practice.

Note that the same applies to [mcontext_t::fpregs], but since that points to floating point registers and is interesting to read in another process, those registers available as Self::float_state, except on the arm architecture since they aren’t part of mcontext_t at all.

float_state: fpregset_t

State of floating point registers.

This isn’t part of the user ABI for Linux arm

siginfo: signalfd_siginfo

The signal info for the crash

pid: i32

The id of the crashing process

tid: i32

The id of the crashing thread

Implementations

impl CrashContext

pub fn as_bytes(&self) -> &[u8]

pub fn from_bytes(bytes: &[u8]) -> Option<CrashContext>

Trait Implementations

impl Clone for CrashContext

fn clone(&self) -> CrashContext

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Send for CrashContext