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ptrace: handle continuiation calls

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handle `PTRACE_CONT` and `PTRACE_SYSCALL` operations.
This commit is contained in:
Matthew Leach
2026-01-10 10:10:46 +00:00
committed by Ashwin Naren
parent 70d9d730c0
commit 5911eb49ef
1 changed files with 27 additions and 0 deletions
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27
src/process/ptrace.rs
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@@ -221,6 +221,8 @@ impl TryFrom<i32> for PtraceOperation {
0 => Ok(PtraceOperation::TraceMe),
1 => Ok(PtraceOperation::PeekText),
2 => Ok(PtraceOperation::PeekData),
7 => Ok(PtraceOperation::Cont),
24 => Ok(PtraceOperation::Syscall),
0x4204 => Ok(PtraceOperation::GetRegSet),
// TODO: Should be EIO
_ => Err(KernelError::InvalidValue),
@@ -308,6 +310,31 @@ pub async fn sys_ptrace(op: i32, pid: u64, addr: UA, data: UA) -> Result<usize>
Err(KernelError::NoProcess)
}
}
PtraceOperation::Cont => {
let mut ptrace = target_task.ptrace.lock_save_irq();
ptrace.state = Some(PTraceState::Running);
ptrace
.break_points
.remove(TracePoint::SyscallEntry | TracePoint::SyscallExit);
*target_task.state.lock_save_irq() = TaskState::Runnable;
Ok(0)
}
PtraceOperation::Syscall => {
let mut ptrace = target_task.ptrace.lock_save_irq();
ptrace.state = Some(PTraceState::Running);
ptrace
.break_points
.insert(TracePoint::SyscallEntry | TracePoint::SyscallExit);
if let Some(waker) = ptrace.waker.take() {
waker.wake();
}
Ok(0)
}
// TODO: Wrong error
_ => Err(KernelError::InvalidValue),
}