================
@@ -2909,11 +2909,12 @@ rnb_err_t
RNBRemote::SendStopReplyPacketForThread(nub_thread_t tid) {
if (!DNBThreadGetRegisterValueByID(pid, tid, regset,
g_reg_entries[reg].nub_info.reg,
reg_value.get()))
- continue;
-
- debugserver_regnum_with_fixed_width_hex_register_value(
- ostrm, pid, tid, &g_reg_entries[reg], reg_value.get(),
- std::nullopt);
+ // base16(regnum):<no value>; means a register that cannot be
fetched.
+ ostrm << RAWHEX8(g_reg_entries[reg].debugserver_regnum) << ":;";
----------------
JDevlieghere wrote:
This is a behavior change that extends beyond just the SME registers, right? If
we have a transient GPR fetch failures, previously that would continue
silently. Now, we'll emit an NN which will mark it as unavailable for the
current stop (and bypass the retry path).
https://github.com/llvm/llvm-project/pull/193894
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