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

[JDevlieghere]

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.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: Jonas Devlieghere (JDevlieghere)

Changes

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.

---

Full diff: https://github.com/llvm/llvm-project/pull/83330.diff

3 Files Affected:

• (modified) lldb/test/Shell/Driver/TestHelp.test (-2)
• (modified) lldb/tools/driver/Driver.cpp (-15)
• (modified) lldb/tools/driver/Driver.h (-1)

diff --git a/lldb/test/Shell/Driver/TestHelp.test b/lldb/test/Shell/Driver/TestHelp.test
index 0f73fdf0374fdd..2521b31a618836 100644
--- a/lldb/test/Shell/Driver/TestHelp.test
+++ b/lldb/test/Shell/Driver/TestHelp.test
@@ -37,8 +37,6 @@ CHECK: --arch
 CHECK: -a
 CHECK: --core
 CHECK: -c
-CHECK: --debug
-CHECK: -d
 CHECK: --editor
 CHECK: -e
 CHECK: --file
diff --git a/lldb/tools/driver/Driver.cpp b/lldb/tools/driver/Driver.cpp
index c63ff0ff597e5c..9286abb27e1332 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 d5779b3c2c91b5..83e0d8a41cfdb1 100644
--- a/lldb/tools/driver/Driver.h
+++ b/lldb/tools/driver/Driver.h
@@ -75,7 +75,6 @@ class Driver : public lldb::SBBroadcaster {
     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;

[medismailben]

LGTM!

[bulbazord]

:)