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// Source: https://github.com/llvm/llvm-project/blob/main/clang/tools/driver/cc1as_main.cpp
// See cc1as.cpp for details.
//===-- cc1as.h - Clang Assembler ----------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This is the entry point to the clang -cc1as functionality, which implements
// the direct interface to the LLVM MC based assembler.
//
//===----------------------------------------------------------------------===//
/// Helper class for representing a single invocation of the assembler.
struct AssemblerInvocation {
/// @name Target Options
/// @{
/// The name of the target triple to assemble for.
std::string Triple;
/// If given, the name of the target CPU to determine which instructions
/// are legal.
std::string CPU;
/// The list of target specific features to enable or disable -- this should
/// be a list of strings starting with '+' or '-'.
std::vector<std::string> Features;
/// The list of symbol definitions.
std::vector<std::string> SymbolDefs;
/// @}
/// @name Language Options
/// @{
std::vector<std::string> IncludePaths;
unsigned NoInitialTextSection : 1;
unsigned SaveTemporaryLabels : 1;
unsigned GenDwarfForAssembly : 1;
unsigned RelaxELFRelocations : 1;
unsigned Dwarf64 : 1;
unsigned DwarfVersion;
std::string DwarfDebugFlags;
std::string DwarfDebugProducer;
std::string DebugCompilationDir;
llvm::SmallVector<std::pair<std::string, std::string>, 0> DebugPrefixMap;
llvm::DebugCompressionType CompressDebugSections =
llvm::DebugCompressionType::None;
std::string MainFileName;
std::string SplitDwarfOutput;
/// @}
/// @name Frontend Options
/// @{
std::string InputFile;
std::vector<std::string> LLVMArgs;
std::string OutputPath;
enum FileType {
FT_Asm, ///< Assembly (.s) output, transliterate mode.
FT_Null, ///< No output, for timing purposes.
FT_Obj ///< Object file output.
};
FileType OutputType;
unsigned ShowHelp : 1;
unsigned ShowVersion : 1;
/// @}
/// @name Transliterate Options
/// @{
unsigned OutputAsmVariant;
unsigned ShowEncoding : 1;
unsigned ShowInst : 1;
/// @}
/// @name Assembler Options
/// @{
unsigned RelaxAll : 1;
unsigned NoExecStack : 1;
unsigned FatalWarnings : 1;
unsigned NoWarn : 1;
unsigned NoTypeCheck : 1;
unsigned IncrementalLinkerCompatible : 1;
unsigned EmbedBitcode : 1;
/// Whether to emit DWARF unwind info.
EmitDwarfUnwindType EmitDwarfUnwind;
// Whether to emit compact-unwind for non-canonical entries.
// Note: maybe overridden by other constraints.
unsigned EmitCompactUnwindNonCanonical : 1;
/// The name of the relocation model to use.
std::string RelocationModel;
/// The ABI targeted by the backend. Specified using -target-abi. Empty
/// otherwise.
std::string TargetABI;
/// Darwin target variant triple, the variant of the deployment target
/// for which the code is being compiled.
std::optional<llvm::Triple> DarwinTargetVariantTriple;
/// The version of the darwin target variant SDK which was used during the
/// compilation
llvm::VersionTuple DarwinTargetVariantSDKVersion;
/// The name of a file to use with \c .secure_log_unique directives.
std::string AsSecureLogFile;
/// @}
public:
AssemblerInvocation() {
Triple = "";
NoInitialTextSection = 0;
InputFile = "-";
OutputPath = "-";
OutputType = FT_Asm;
OutputAsmVariant = 0;
ShowInst = 0;
ShowEncoding = 0;
RelaxAll = 0;
NoExecStack = 0;
FatalWarnings = 0;
NoWarn = 0;
NoTypeCheck = 0;
IncrementalLinkerCompatible = 0;
Dwarf64 = 0;
DwarfVersion = 0;
EmbedBitcode = 0;
EmitDwarfUnwind = EmitDwarfUnwindType::Default;
EmitCompactUnwindNonCanonical = false;
}
static bool CreateFromArgs(AssemblerInvocation &Res,
ArrayRef<const char *> Argv,
DiagnosticsEngine &Diags);
};
bool ExecuteAssembler(AssemblerInvocation &Opts, DiagnosticsEngine &Diags);
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