================
@@ -87,6 +150,18 @@ bool ABISysV_arm64::PrepareTrivialCall(Thread &thread,
addr_t sp,
if (args.size() > 8)
return false;
+ // Do this first, as it's got the most chance of failing (though still very
+ // low).
+ if (GetProcessSP()->GetTarget().GetArchitecture().GetTriple().isOSLinux()) {
+ Status err = PushToLinuxGuardedControlStack(return_addr, reg_ctx, thread);
+ // If we could not manage the GCS, the expression will certainly fail,
+ // and if we just carried on, that failure would be a lot more cryptic.
+ if (err.Fail()) {
+ LLDB_LOGF(log, "Failed to setup Guarded Call Stack: %s",
err.AsCString());
+ return false;
+ }
+ }
----------------
DavidSpickett wrote:
Moved this up, before we write any other registers, as a temporary workaround.
https://github.com/llvm/llvm-project/pull/123918
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