[lldb] print errors when the debug server is not found (llvm#165157)

MrCirdo · aokblast · commit a5f1e2100847 · 2025-10-31T00:09:57.000+08:00
diff --git a/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp b/lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
@@ -3672,6 +3672,12 @@ Status ProcessGDBRemote::LaunchAndConnectToDebugserver(
     }
   }
 #endif
+
+  if (!FileSystem::Instance().Exists(debugserver_path))
+    return Status::FromErrorString("could not find '" DEBUGSERVER_BASENAME
+                                   "'. Please ensure it is properly installed "
+                                   "and available in your PATH");
+
   debugserver_launch_info.SetExecutableFile(debugserver_path,
                                             /*add_exe_file_as_first_arg=*/true);
 

Original file line number	Diff line number	Diff line change
`@@ -3672,6 +3672,12 @@ Status ProcessGDBRemote::LaunchAndConnectToDebugserver(`
`3672`	`3672`	`}`
`3673`	`3673`	`}`
`3674`	`3674`	`#endif`
	`3675`	`+`
	`3676`	`+ if (!FileSystem::Instance().Exists(debugserver_path))`
	`3677`	`+ return Status::FromErrorString("could not find '" DEBUGSERVER_BASENAME`
	`3678`	`+ "'. Please ensure it is properly installed "`
	`3679`	`+ "and available in your PATH");`
	`3680`	`+`
`3675`	`3681`	`debugserver_launch_info.SetExecutableFile(debugserver_path,`
`3676`	`3682`	`/add_exe_file_as_first_arg=/true);`
`3677`	`3683`