58efc426d7
In order to support the Microsoft ABI alongside the Itanium one in the same process from different DLLs, this moves the Itanium ABI runtime plugin to the C++ language runtime (see https://github.com/llvm/llvm-project/pull/168941#discussion_r2547684264). Before this PR, the C++ language runtime wasn't a plugin. Instead, its functionality was provided by the Itanium ABI plugin. All Itanium specific methods are moved to a new class `ItaniumABIRuntime`. This includes resolving the dynamic type, setting exception filters, and getting the exception object. The other methods were added to `CPPLanguageRuntime`. `language cplusplus demangle` moved to `CommandObjectCPlusPlus`. The Clang REPL depended on the C++ runtime. Now that it's a plugin, this failed the layering check. Since the REPL doesn't use the C++ runtime, I removed the dependency.
69 lines
2.7 KiB
C++
69 lines
2.7 KiB
C++
//===----------------------------------------------------------------------===//
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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 "CommandObjectCPlusPlus.h"
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#include "lldb/Core/Mangled.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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using namespace lldb;
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using namespace lldb_private;
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CommandObjectCPlusPlusDemangle::CommandObjectCPlusPlusDemangle(
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CommandInterpreter &interpreter)
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: CommandObjectParsed(interpreter, "demangle",
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"Demangle a C++ mangled name.",
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"language cplusplus demangle [<mangled-name> ...]") {
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AddSimpleArgumentList(eArgTypeSymbol, eArgRepeatPlus);
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}
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void CommandObjectCPlusPlusDemangle::DoExecute(Args &command,
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CommandReturnObject &result) {
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bool demangled_any = false;
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bool error_any = false;
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for (auto &entry : command.entries()) {
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if (entry.ref().empty())
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continue;
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// the actual Mangled class should be strict about this, but on the
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// command line if you're copying mangled names out of 'nm' on Darwin,
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// they will come out with an extra underscore - be willing to strip this
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// on behalf of the user. This is the moral equivalent of the -_/-n
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// options to c++filt
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auto name = entry.ref();
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if (name.starts_with("__Z"))
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name = name.drop_front();
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Mangled mangled(name);
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if (mangled.GuessLanguage() == lldb::eLanguageTypeC_plus_plus) {
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ConstString demangled(mangled.GetDisplayDemangledName());
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demangled_any = true;
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result.AppendMessageWithFormatv("{0} ---> {1}", entry.c_str(),
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demangled.GetCString());
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} else {
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error_any = true;
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result.AppendErrorWithFormat("%s is not a valid C++ mangled name\n",
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entry.ref().str().c_str());
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}
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}
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result.SetStatus(
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error_any ? lldb::eReturnStatusFailed
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: (demangled_any ? lldb::eReturnStatusSuccessFinishResult
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: lldb::eReturnStatusSuccessFinishNoResult));
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}
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CommandObjectCPlusPlus::CommandObjectCPlusPlus(CommandInterpreter &interpreter)
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: CommandObjectMultiword(
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interpreter, "cplusplus",
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"Commands for operating on the C++ language runtime.",
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"cplusplus <subcommand> [<subcommand-options>]") {
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LoadSubCommand("demangle", CommandObjectSP(new CommandObjectCPlusPlusDemangle(
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interpreter)));
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}
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