50bc1ed290
This patch modifies how we open File instances in LLDB. Rather than passing a path or FileSpec to the constructor, we now go through the virtual file system. This is needed in order to make things work with the VFS in the future. Differential revision: https://reviews.llvm.org/D54020 llvm-svn: 346049
133 lines
4.4 KiB
C++
133 lines
4.4 KiB
C++
//===-- CommandObjectBugreport.cpp ------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "CommandObjectBugreport.h"
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// C Includes
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#include <cstdio>
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Interpreter/OptionGroupOutputFile.h"
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#include "lldb/Target/Thread.h"
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using namespace lldb;
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using namespace lldb_private;
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//-------------------------------------------------------------------------
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// "bugreport unwind"
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//-------------------------------------------------------------------------
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class CommandObjectBugreportUnwind : public CommandObjectParsed {
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public:
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CommandObjectBugreportUnwind(CommandInterpreter &interpreter)
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: CommandObjectParsed(
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interpreter, "bugreport unwind",
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"Create a bugreport for a bug in the stack unwinding code.",
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nullptr),
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m_option_group(), m_outfile_options() {
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m_option_group.Append(&m_outfile_options, LLDB_OPT_SET_ALL,
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LLDB_OPT_SET_1 | LLDB_OPT_SET_2 | LLDB_OPT_SET_3);
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m_option_group.Finalize();
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}
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~CommandObjectBugreportUnwind() override {}
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Options *GetOptions() override { return &m_option_group; }
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protected:
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bool DoExecute(Args &command, CommandReturnObject &result) override {
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StringList commands;
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commands.AppendString("thread backtrace");
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Thread *thread = m_exe_ctx.GetThreadPtr();
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if (thread) {
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char command_buffer[256];
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uint32_t frame_count = thread->GetStackFrameCount();
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for (uint32_t i = 0; i < frame_count; ++i) {
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StackFrameSP frame = thread->GetStackFrameAtIndex(i);
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lldb::addr_t pc = frame->GetStackID().GetPC();
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snprintf(command_buffer, sizeof(command_buffer),
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"disassemble --bytes --address 0x%" PRIx64, pc);
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commands.AppendString(command_buffer);
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snprintf(command_buffer, sizeof(command_buffer),
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"image show-unwind --address 0x%" PRIx64, pc);
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commands.AppendString(command_buffer);
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}
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}
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const FileSpec &outfile_spec =
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m_outfile_options.GetFile().GetCurrentValue();
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if (outfile_spec) {
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uint32_t open_options =
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File::eOpenOptionWrite | File::eOpenOptionCanCreate |
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File::eOpenOptionAppend | File::eOpenOptionCloseOnExec;
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const bool append = m_outfile_options.GetAppend().GetCurrentValue();
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if (!append)
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open_options |= File::eOpenOptionTruncate;
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StreamFileSP outfile_stream = std::make_shared<StreamFile>();
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File &file = outfile_stream->GetFile();
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Status error =
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FileSystem::Instance().Open(file, outfile_spec, open_options);
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if (error.Fail()) {
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auto path = outfile_spec.GetPath();
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result.AppendErrorWithFormat("Failed to open file '%s' for %s: %s\n",
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path.c_str(), append ? "append" : "write",
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error.AsCString());
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result.SetStatus(eReturnStatusFailed);
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return false;
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}
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result.SetImmediateOutputStream(outfile_stream);
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}
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CommandInterpreterRunOptions options;
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options.SetStopOnError(false);
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options.SetEchoCommands(true);
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options.SetPrintResults(true);
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options.SetAddToHistory(false);
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m_interpreter.HandleCommands(commands, &m_exe_ctx, options, result);
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return result.Succeeded();
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}
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private:
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OptionGroupOptions m_option_group;
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OptionGroupOutputFile m_outfile_options;
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};
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#pragma mark CommandObjectMultiwordBugreport
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//-------------------------------------------------------------------------
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// CommandObjectMultiwordBugreport
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//-------------------------------------------------------------------------
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CommandObjectMultiwordBugreport::CommandObjectMultiwordBugreport(
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CommandInterpreter &interpreter)
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: CommandObjectMultiword(
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interpreter, "bugreport",
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"Commands for creating domain-specific bug reports.",
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"bugreport <subcommand> [<subcommand-options>]") {
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LoadSubCommand(
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"unwind", CommandObjectSP(new CommandObjectBugreportUnwind(interpreter)));
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}
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CommandObjectMultiwordBugreport::~CommandObjectMultiwordBugreport() {}
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