[lldb] Remove -d(ebug) mode from the lldb driver (#83330)

The -d(ebug) option broke 5 years ago when I migrated the driver to
libOption. Since then, we were never check if the option is set. We were
incorrectly toggling the internal variable (m_debug_mode) based on
OPT_no_use_colors instead.

Given that the functionality doesn't seem particularly useful and nobody
noticed it has been broken for 5 years, I'm just removing the flag.

2 files changed, 0 insertions, 16 deletions

diff --git a/lldb/tools/driver/Driver.cpp b/lldb/tools/driver/Driver.cpp
index c63ff0f..9286abb 100644
--- a/lldb/tools/driver/Driver.cpp
+++ b/lldb/tools/driver/Driver.cpp
@@ -188,7 +188,6 @@ SBError Driver::ProcessArgs(const opt::InputArgList &args, bool &exiting) {
   if (args.hasArg(OPT_no_use_colors)) {
     m_debugger.SetUseColor(false);
     WithColor::setAutoDetectFunction(disable_color);
-    m_option_data.m_debug_mode = true;
   }
 
   if (args.hasArg(OPT_version)) {
@@ -455,16 +454,7 @@ int Driver::MainLoop() {
   // Process lldbinit files before handling any options from the command line.
   SBCommandReturnObject result;
   sb_interpreter.SourceInitFileInGlobalDirectory(result);
-  if (m_option_data.m_debug_mode) {
-    result.PutError(m_debugger.GetErrorFile());
-    result.PutOutput(m_debugger.GetOutputFile());
-  }
-
   sb_interpreter.SourceInitFileInHomeDirectory(result, m_option_data.m_repl);
-  if (m_option_data.m_debug_mode) {
-    result.PutError(m_debugger.GetErrorFile());
-    result.PutOutput(m_debugger.GetOutputFile());
-  }
 
   // Source the local .lldbinit file if it exists and we're allowed to source.
   // Here we want to always print the return object because it contains the
@@ -536,11 +526,6 @@ int Driver::MainLoop() {
                             "or -s) are ignored in REPL mode.\n";
   }
 
-  if (m_option_data.m_debug_mode) {
-    result.PutError(m_debugger.GetErrorFile());
-    result.PutOutput(m_debugger.GetOutputFile());
-  }
-
   const bool handle_events = true;
   const bool spawn_thread = false;
 
diff --git a/lldb/tools/driver/Driver.h b/lldb/tools/driver/Driver.h
index d5779b3..83e0d8a 100644
--- a/lldb/tools/driver/Driver.h
+++ b/lldb/tools/driver/Driver.h
@@ -75,7 +75,6 @@ public:
     std::vector<InitialCmdEntry> m_after_file_commands;
     std::vector<InitialCmdEntry> m_after_crash_commands;
 
-    bool m_debug_mode = false;
     bool m_source_quietly = false;
     bool m_print_version = false;
     bool m_print_python_path = false;