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|
use super::prelude::*;
use crate::protocol::commands::ext::ExtendedMode;
use crate::protocol::SpecificIdKind;
use crate::protocol::SpecificThreadId;
use crate::target::ext::base::BaseOps;
use crate::SINGLE_THREAD_TID;
impl<T: Target, C: Connection> GdbStubImpl<T, C> {
pub(crate) fn handle_extended_mode(
&mut self,
res: &mut ResponseWriter<'_, C>,
target: &mut T,
command: ExtendedMode<'_>,
) -> Result<HandlerStatus, Error<T::Error, C::Error>> {
let ops = match target.support_extended_mode() {
Some(ops) => ops,
None => return Ok(HandlerStatus::Handled),
};
crate::__dead_code_marker!("extended_mode", "impl");
let handler_status = match command {
ExtendedMode::ExclamationMark(_cmd) => {
ops.on_start().map_err(Error::TargetError)?;
HandlerStatus::NeedsOk
}
ExtendedMode::R(_cmd) => {
ops.restart().map_err(Error::TargetError)?;
HandlerStatus::Handled
}
ExtendedMode::vAttach(cmd) => {
if ops.support_current_active_pid().is_none() {
return Err(Error::MissingCurrentActivePidImpl);
}
ops.attach(cmd.pid).handle_error()?;
self.report_reasonable_stop_reason(res, target)?
}
ExtendedMode::qC(_cmd) if ops.support_current_active_pid().is_some() => {
let ops = ops.support_current_active_pid().unwrap();
res.write_str("QC")?;
let pid = ops.current_active_pid().map_err(Error::TargetError)?;
let tid = match target.base_ops() {
BaseOps::SingleThread(_) => SINGLE_THREAD_TID,
BaseOps::MultiThread(ops) => {
// HACK: gdbstub should avoid using a sentinel value here...
if self.current_mem_tid == SINGLE_THREAD_TID {
let mut err: Result<_, Error<T::Error, C::Error>> = Ok(());
let mut first_tid = None;
ops.list_active_threads(&mut |tid| {
// TODO: replace this with a try block (once stabilized)
let e = (|| {
if first_tid.is_some() {
return Ok(());
}
first_tid = Some(tid);
Ok(())
})();
if let Err(e) = e {
err = Err(e)
}
})
.map_err(Error::TargetError)?;
err?;
first_tid.unwrap_or(SINGLE_THREAD_TID)
} else {
self.current_mem_tid
}
}
};
res.write_specific_thread_id(SpecificThreadId {
pid: self
.features
.multiprocess()
.then_some(SpecificIdKind::WithId(pid)),
tid: SpecificIdKind::WithId(tid),
})?;
HandlerStatus::Handled
}
ExtendedMode::vRun(cmd) => {
use crate::target::ext::extended_mode::Args;
let _pid = ops
.run(cmd.filename, Args::new(&mut cmd.args.into_iter()))
.handle_error()?;
self.report_reasonable_stop_reason(res, target)?
}
// --------- ASLR --------- //
ExtendedMode::QDisableRandomization(cmd) if ops.support_configure_aslr().is_some() => {
let ops = ops.support_configure_aslr().unwrap();
ops.cfg_aslr(cmd.value).handle_error()?;
HandlerStatus::NeedsOk
}
// --------- Environment --------- //
ExtendedMode::QEnvironmentHexEncoded(cmd) if ops.support_configure_env().is_some() => {
let ops = ops.support_configure_env().unwrap();
ops.set_env(cmd.key, cmd.value).handle_error()?;
HandlerStatus::NeedsOk
}
ExtendedMode::QEnvironmentUnset(cmd) if ops.support_configure_env().is_some() => {
let ops = ops.support_configure_env().unwrap();
ops.remove_env(cmd.key).handle_error()?;
HandlerStatus::NeedsOk
}
ExtendedMode::QEnvironmentReset(_cmd) if ops.support_configure_env().is_some() => {
let ops = ops.support_configure_env().unwrap();
ops.reset_env().handle_error()?;
HandlerStatus::NeedsOk
}
// --------- Working Dir --------- //
ExtendedMode::QSetWorkingDir(cmd) if ops.support_configure_working_dir().is_some() => {
let ops = ops.support_configure_working_dir().unwrap();
ops.cfg_working_dir(cmd.dir).handle_error()?;
HandlerStatus::NeedsOk
}
// --------- Startup Shell --------- //
ExtendedMode::QStartupWithShell(cmd)
if ops.support_configure_startup_shell().is_some() =>
{
let ops = ops.support_configure_startup_shell().unwrap();
ops.cfg_startup_with_shell(cmd.value).handle_error()?;
HandlerStatus::NeedsOk
}
_ => HandlerStatus::Handled,
};
Ok(handler_status)
}
}
|
