0642cd768b
This patch removes all of the Set.* methods from Status. This cleanup is part of a series of patches that make it harder use the anti-pattern of keeping a long-lives Status object around and updating it while dropping any errors it contains on the floor. This patch is largely NFC, the more interesting next steps this enables is to: 1. remove Status.Clear() 2. assert that Status::operator=() never overwrites an error 3. remove Status::operator=() Note that step (2) will bring 90% of the benefits for users, and step (3) will dramatically clean up the error handling code in various places. In the end my goal is to convert all APIs that are of the form ` ResultTy DoFoo(Status& error) ` to ` llvm::Expected<ResultTy> DoFoo() ` How to read this patch? The interesting changes are in Status.h and Status.cpp, all other changes are mostly ` perl -pi -e 's/\.SetErrorString/ = Status::FromErrorString/g' $(git grep -l SetErrorString lldb/source) ` plus the occasional manual cleanup.
151 lines
4.4 KiB
C++
151 lines
4.4 KiB
C++
//===-- CommandOptionsProcessLaunch.cpp -----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "CommandOptionsProcessLaunch.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Host/OptionParser.h"
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#include "lldb/Interpreter/CommandCompletions.h"
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#include "lldb/Interpreter/CommandObject.h"
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#include "lldb/Interpreter/CommandOptionArgumentTable.h"
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#include "lldb/Interpreter/OptionArgParser.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Platform.h"
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#include "lldb/Target/Target.h"
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#include "llvm/ADT/ArrayRef.h"
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using namespace llvm;
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using namespace lldb;
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using namespace lldb_private;
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#define LLDB_OPTIONS_process_launch
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#include "CommandOptions.inc"
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Status CommandOptionsProcessLaunch::SetOptionValue(
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uint32_t option_idx, llvm::StringRef option_arg,
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ExecutionContext *execution_context) {
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Status error;
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const int short_option = g_process_launch_options[option_idx].short_option;
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TargetSP target_sp =
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execution_context ? execution_context->GetTargetSP() : TargetSP();
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switch (short_option) {
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case 's': // Stop at program entry point
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launch_info.GetFlags().Set(eLaunchFlagStopAtEntry);
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break;
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case 'm': // Stop at user entry point
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target_sp->CreateBreakpointAtUserEntry(error);
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break;
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case 'i': // STDIN for read only
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{
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FileAction action;
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if (action.Open(STDIN_FILENO, FileSpec(option_arg), true, false))
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launch_info.AppendFileAction(action);
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break;
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}
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case 'o': // Open STDOUT for write only
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{
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FileAction action;
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if (action.Open(STDOUT_FILENO, FileSpec(option_arg), false, true))
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launch_info.AppendFileAction(action);
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break;
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}
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case 'e': // STDERR for write only
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{
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FileAction action;
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if (action.Open(STDERR_FILENO, FileSpec(option_arg), false, true))
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launch_info.AppendFileAction(action);
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break;
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}
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case 'P': // Process plug-in name
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launch_info.SetProcessPluginName(option_arg);
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break;
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case 'n': // Disable STDIO
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{
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FileAction action;
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const FileSpec dev_null(FileSystem::DEV_NULL);
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if (action.Open(STDIN_FILENO, dev_null, true, false))
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launch_info.AppendFileAction(action);
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if (action.Open(STDOUT_FILENO, dev_null, false, true))
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launch_info.AppendFileAction(action);
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if (action.Open(STDERR_FILENO, dev_null, false, true))
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launch_info.AppendFileAction(action);
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break;
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}
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case 'w':
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launch_info.SetWorkingDirectory(FileSpec(option_arg));
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break;
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case 't': // Open process in new terminal window
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launch_info.GetFlags().Set(eLaunchFlagLaunchInTTY);
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break;
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case 'a': {
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PlatformSP platform_sp =
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target_sp ? target_sp->GetPlatform() : PlatformSP();
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launch_info.GetArchitecture() =
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Platform::GetAugmentedArchSpec(platform_sp.get(), option_arg);
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} break;
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case 'A': // Disable ASLR.
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{
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bool success;
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const bool disable_aslr_arg =
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OptionArgParser::ToBoolean(option_arg, true, &success);
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if (success)
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disable_aslr = disable_aslr_arg ? eLazyBoolYes : eLazyBoolNo;
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else
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return Status::FromErrorStringWithFormat(
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"Invalid boolean value for disable-aslr option: '%s'",
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option_arg.empty() ? "<null>" : option_arg.str().c_str());
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break;
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}
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case 'X': // shell expand args.
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{
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bool success;
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const bool expand_args =
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OptionArgParser::ToBoolean(option_arg, true, &success);
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if (success)
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launch_info.SetShellExpandArguments(expand_args);
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else
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return Status::FromErrorStringWithFormat(
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"Invalid boolean value for shell-expand-args option: '%s'",
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option_arg.empty() ? "<null>" : option_arg.str().c_str());
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break;
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}
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case 'c':
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if (!option_arg.empty())
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launch_info.SetShell(FileSpec(option_arg));
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else
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launch_info.SetShell(HostInfo::GetDefaultShell());
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break;
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case 'E':
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launch_info.GetEnvironment().insert(option_arg);
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break;
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default:
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return Status::FromErrorStringWithFormat(
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"unrecognized short option character '%c'", short_option);
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}
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return error;
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}
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llvm::ArrayRef<OptionDefinition> CommandOptionsProcessLaunch::GetDefinitions() {
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return llvm::ArrayRef(g_process_launch_options);
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}
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