1 files changed, 124 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Commands/CommandObjectBugreport.cpp b/contrib/llvm-project/lldb/source/Commands/CommandObjectBugreport.cpp
new file mode 100644
index 000000000000..515cc9a113b1
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Commands/CommandObjectBugreport.cpp
@@ -0,0 +1,124 @@
+//===-- CommandObjectBugreport.cpp ------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "CommandObjectBugreport.h"
+
+#include <cstdio>
+
+
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Interpreter/CommandReturnObject.h"
+#include "lldb/Interpreter/OptionGroupOutputFile.h"
+#include "lldb/Target/Thread.h"
+
+using namespace lldb;
+using namespace lldb_private;
+
+// "bugreport unwind"
+
+class CommandObjectBugreportUnwind : public CommandObjectParsed {
+public:
+  CommandObjectBugreportUnwind(CommandInterpreter &interpreter)
+      : CommandObjectParsed(
+            interpreter, "bugreport unwind",
+            "Create a bugreport for a bug in the stack unwinding code.",
+            nullptr),
+        m_option_group(), m_outfile_options() {
+    m_option_group.Append(&m_outfile_options, LLDB_OPT_SET_ALL,
+                          LLDB_OPT_SET_1 | LLDB_OPT_SET_2 | LLDB_OPT_SET_3);
+    m_option_group.Finalize();
+  }
+
+  ~CommandObjectBugreportUnwind() override {}
+
+  Options *GetOptions() override { return &m_option_group; }
+
+protected:
+  bool DoExecute(Args &command, CommandReturnObject &result) override {
+    StringList commands;
+    commands.AppendString("thread backtrace");
+
+    Thread *thread = m_exe_ctx.GetThreadPtr();
+    if (thread) {
+      char command_buffer[256];
+
+      uint32_t frame_count = thread->GetStackFrameCount();
+      for (uint32_t i = 0; i < frame_count; ++i) {
+        StackFrameSP frame = thread->GetStackFrameAtIndex(i);
+        lldb::addr_t pc = frame->GetStackID().GetPC();
+
+        snprintf(command_buffer, sizeof(command_buffer),
+                 "disassemble --bytes --address 0x%" PRIx64, pc);
+        commands.AppendString(command_buffer);
+
+        snprintf(command_buffer, sizeof(command_buffer),
+                 "image show-unwind --address 0x%" PRIx64, pc);
+        commands.AppendString(command_buffer);
+      }
+    }
+
+    const FileSpec &outfile_spec =
+        m_outfile_options.GetFile().GetCurrentValue();
+    if (outfile_spec) {
+
+      uint32_t open_options =
+          File::eOpenOptionWrite | File::eOpenOptionCanCreate |
+          File::eOpenOptionAppend | File::eOpenOptionCloseOnExec;
+
+      const bool append = m_outfile_options.GetAppend().GetCurrentValue();
+      if (!append)
+        open_options |= File::eOpenOptionTruncate;
+
+      StreamFileSP outfile_stream = std::make_shared<StreamFile>();
+      File &file = outfile_stream->GetFile();
+      Status error =
+          FileSystem::Instance().Open(file, outfile_spec, open_options);
+      if (error.Fail()) {
+        auto path = outfile_spec.GetPath();
+        result.AppendErrorWithFormat("Failed to open file '%s' for %s: %s\n",
+                                     path.c_str(), append ? "append" : "write",
+                                     error.AsCString());
+        result.SetStatus(eReturnStatusFailed);
+        return false;
+      }
+
+      result.SetImmediateOutputStream(outfile_stream);
+    }
+
+    CommandInterpreterRunOptions options;
+    options.SetStopOnError(false);
+    options.SetEchoCommands(true);
+    options.SetPrintResults(true);
+    options.SetPrintErrors(true);
+    options.SetAddToHistory(false);
+    m_interpreter.HandleCommands(commands, &m_exe_ctx, options, result);
+
+    return result.Succeeded();
+  }
+
+private:
+  OptionGroupOptions m_option_group;
+  OptionGroupOutputFile m_outfile_options;
+};
+
+#pragma mark CommandObjectMultiwordBugreport
+
+// CommandObjectMultiwordBugreport
+
+CommandObjectMultiwordBugreport::CommandObjectMultiwordBugreport(
+    CommandInterpreter &interpreter)
+    : CommandObjectMultiword(
+          interpreter, "bugreport",
+          "Commands for creating domain-specific bug reports.",
+          "bugreport <subcommand> [<subcommand-options>]") {
+
+  LoadSubCommand(
+      "unwind", CommandObjectSP(new CommandObjectBugreportUnwind(interpreter)));
+}
+
+CommandObjectMultiwordBugreport::~CommandObjectMultiwordBugreport() {}