v5gdb 0.1.0-alpha.2

GDB-compatible debugger backend for the VEX V5 platform
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use gdbstub::common::Tid;

use crate::{
    exceptions::DebugEventContext,
    gdb_target::{V5Target, arch::ArmRegisterID, single_register_access::SavedRegister},
    sys::{DebuggerSystem, SystemError},
};

pub struct BareSystem {}

impl DebuggerSystem for BareSystem {
    const MULTITHREADED: bool = false;

    fn initialize(_target: &mut V5Target) {}

    #[inline(always)]
    fn suspend_preemption() {}

    #[inline(always)]
    fn current_thread() -> Tid {
        Tid::new(1).unwrap()
    }

    #[inline(always)]
    fn thread_exists(tid: Tid) -> bool {
        tid == Self::current_thread()
    }

    #[inline(always)]
    fn all_threads(handler: &mut dyn FnMut(Tid)) {
        handler(Self::current_thread())
    }

    #[inline(always)]
    fn read_registers(_tid: Tid) -> Result<DebugEventContext, SystemError> {
        Err(SystemError::NoSuchTid)
    }

    #[inline(always)]
    unsafe fn write_registers(
        _tid: Tid,
        _registers: &DebugEventContext,
    ) -> Result<(), SystemError> {
        Err(SystemError::NoSuchTid)
    }

    #[inline(always)]
    fn read_single_register(_tid: Tid, _id: ArmRegisterID) -> Result<SavedRegister, SystemError> {
        Err(SystemError::NoSuchTid)
    }

    #[inline(always)]
    unsafe fn write_single_register(
        _tid: Tid,
        _id: ArmRegisterID,
        _value: SavedRegister,
    ) -> Result<(), SystemError> {
        Err(SystemError::NoSuchTid)
    }

    fn read_thread_name(_tid: Tid, _buf: &mut [u8]) -> Result<usize, SystemError> {
        Err(SystemError::NoSuchTid)
    }
}