[Lldb-commits] [lldb] 9889ffe - [lldb-dap] Add more logs when running in server mode (#195249)

[via lldb-commits]

Author: Ebuka Ezike
Date: 2026-05-01T16:10:07+01:00
New Revision: 9889ffeefe5d69e5db56bff4264e8c075464149e

URL: https://github.com/llvm/llvm-project/commit/9889ffeefe5d69e5db56bff4264e8c075464149e
DIFF: https://github.com/llvm/llvm-project/commit/9889ffeefe5d69e5db56bff4264e8c075464149e.diff

LOG: [lldb-dap] Add more logs when running in server mode (#195249)

Had a recent failure in server mode but could not find the reason for
the failure.

```
[09:26:05.247] lldb-dap.cpp:552 started with connection listeners connection://[127.0.0.1]:34035
[09:26:05.258] lldb-dap.cpp:587 (conn0) client connected
[09:26:05.263] lldb-dap.cpp:630 server shutting down, disconnecting remaining clients
[09:26:05.263] (conn0) <-- {"event":"terminated","seq":1,"type":"event"}
[09:26:05.263] DAP.cpp:1005 (conn0) transport closed
[09:26:05.272] lldb-dap.cpp:609 (conn0) client disconnected
```

Added: 
    

Modified: 
    lldb/tools/lldb-dap/tool/lldb-dap.cpp

Removed: 
    


################################################################################
diff  --git a/lldb/tools/lldb-dap/tool/lldb-dap.cpp b/lldb/tools/lldb-dap/tool/lldb-dap.cpp
index 61d42ed49ffa1..b09e0c7dc9aa9 100644
--- a/lldb/tools/lldb-dap/tool/lldb-dap.cpp
+++ b/lldb/tools/lldb-dap/tool/lldb-dap.cpp
@@ -592,6 +592,8 @@ static llvm::Error serveConnection(
               client_name, transport, loop);
 
       if (auto Err = dap.ConfigureIO()) {
+        DAP_LOG(client_log, "error: Failed to configure stdout redirect: {}",
+                llvm::toStringWithoutConsuming(Err));
         llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(),
                                     "Failed to configure stdout redirect: ");
         return;
@@ -601,6 +603,7 @@ static llvm::Error serveConnection(
       DAPSessionManager::GetInstance().RegisterSession(&loop, &dap);
 
       if (auto Err = dap.Loop()) {
+        DAP_LOG(client_log, "error: {}", llvm::toStringWithoutConsuming(Err));
         llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(),
                                     "DAP session (" + client_name +
                                         ") error: ");
@@ -842,6 +845,8 @@ int main(int argc, char *argv[]) {
   if (!connection.empty()) {
     auto maybeProtoclAndName = validateConnection(connection);
     if (auto Err = maybeProtoclAndName.takeError()) {
+      DAP_LOG(log, "Connection Failed: {}",
+              llvm::toStringWithoutConsuming(Err));
       llvm::logAllUnhandledErrors(std::move(Err), llvm::errs(),
                                   "Invalid connection: ");
       return EXIT_FAILURE;