[lldb-dap] Document stopOnEntry when attaching.

[da-viper]

We have always supported it but it was undocumented. It shows a warning unknown key when added in vscode attach configuration.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Ebuka Ezike (da-viper)

Changes

We have always supported it but it was undocumented. It shows a warning unknown key when added in vscode attach configuration.

---

Full diff: https://github.com/llvm/llvm-project/pull/172927.diff

2 Files Affected:

• (modified) lldb/tools/lldb-dap/README.md (+1)
• (modified) lldb/tools/lldb-dap/package.json (+5)

diff --git a/lldb/tools/lldb-dap/README.md b/lldb/tools/lldb-dap/README.md
index e83384f89bc1f..7aa59ef1b7252 100644
--- a/lldb/tools/lldb-dap/README.md
+++ b/lldb/tools/lldb-dap/README.md
@@ -276,6 +276,7 @@ the following `lldb-dap` specific key/value pairs:
 | **program**                       | string      |     | Path to the executable to attach to. This value is optional but can help to resolve breakpoints prior the attaching to the program.
 | **pid**                           | number      |     | The process id of the process you wish to attach to. If **pid** is omitted, the debugger will attempt to attach to the program by finding a process whose file name matches the file name from **program**. Setting this value to `${command:pickMyProcess}` will allow interactive process selection in the IDE.
 | **waitFor**                       | boolean     |     | Wait for the process to launch.
+| **stopOnEntry**                   | boolean     |     | Whether to stop program immediately after attaching.
 | **attachCommands**                | [string]    |     | LLDB commands that will be executed after **preRunCommands** which take place of the code that normally does the attach. The commands can create a new target and attach or launch it however desired. This allows custom launch and attach configurations. Core files can use `target create --core /path/to/core` to attach to core files.
 
 ### Configuring `lldb-dap` defaults
diff --git a/lldb/tools/lldb-dap/package.json b/lldb/tools/lldb-dap/package.json
index 75d86f74a95d0..9d058fb4fd957 100644
--- a/lldb/tools/lldb-dap/package.json
+++ b/lldb/tools/lldb-dap/package.json
@@ -727,6 +727,11 @@
                 "description": "If set to true, then wait for the process to launch by looking for a process with a basename that matches `program`. No process ID needs to be specified when using this flag.",
                 "default": true
               },
+              "stopOnEntry": {
+                "type": "boolean",
+                "description": "Automatically stop after attach.",
+                "default": false
+              },
               "sourcePath": {
                 "type": "string",
                 "description": "Specify a source path to remap \"./\" to allow full paths to be used when setting breakpoints in binaries that have relative source paths."