[lldb-dap] Report any errors during attach request

[da-viper]

Attaching using core, gdbremote or attachInfo may have an error. fail early if it does.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Ebuka Ezike (da-viper)

Changes

Attaching using core, gdbremote or attachInfo may have an error. fail early if it does.

---

Full diff: https://github.com/llvm/llvm-project/pull/165270.diff

1 Files Affected:

• (modified) lldb/tools/lldb-dap/Handler/AttachRequestHandler.cpp (+2)

diff --git a/lldb/tools/lldb-dap/Handler/AttachRequestHandler.cpp b/lldb/tools/lldb-dap/Handler/AttachRequestHandler.cpp
index 371349a26866e..490513fe8a0b8 100644
--- a/lldb/tools/lldb-dap/Handler/AttachRequestHandler.cpp
+++ b/lldb/tools/lldb-dap/Handler/AttachRequestHandler.cpp
@@ -124,6 +124,8 @@ Error AttachRequestHandler::Run(const AttachRequestArguments &args) const {
       attach_info.SetWaitForLaunch(args.waitFor, /*async=*/false);
       dap.target.Attach(attach_info, error);
     }
+    if (error.Fail())
+      return ToError(error);
   }
 
   // Make sure the process is attached and stopped.

[JDevlieghere]

Can we test this?