clang/lib/Driver/ToolChains/AIX.cpp - llvm-project - Git at Google

 //===--- AIX.cpp - AIX ToolChain Implementations ----------------*- 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 "AIX.h"
 #include "Arch/PPC.h"
 #include "CommonArgs.h"
 #include "clang/Driver/Compilation.h"
 #include "clang/Driver/Options.h"
 #include "clang/Driver/SanitizerArgs.h"
 #include "llvm/Option/ArgList.h"
 #include "llvm/Support/Path.h"

 using AIX = clang::driver::toolchains::AIX;
 using namespace clang::driver;
 using namespace clang::driver::tools;
 using namespace clang::driver::toolchains;

 using namespace llvm::opt;
 using namespace llvm::sys;

 void aix::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
                                   const InputInfo &Output,
                                   const InputInfoList &Inputs,
                                   const ArgList &Args,
                                   const char *LinkingOutput) const {
   ArgStringList CmdArgs;

   const bool IsArch32Bit = getToolChain().getTriple().isArch32Bit();
   const bool IsArch64Bit = getToolChain().getTriple().isArch64Bit();
   // Only support 32 and 64 bit.
   if (!IsArch32Bit && !IsArch64Bit)
     llvm_unreachable("Unsupported bit width value.");

   // Specify the mode in which the as(1) command operates.
   if (IsArch32Bit) {
     CmdArgs.push_back("-a32");
   } else {
     // Must be 64-bit, otherwise asserted already.
     CmdArgs.push_back("-a64");
   }

   // Accept any mixture of instructions.
   // On Power for AIX and Linux, this behaviour matches that of GCC for both the
   // user-provided assembler source case and the compiler-produced assembler
   // source case. Yet XL with user-provided assembler source would not add this.
   CmdArgs.push_back("-many");

   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);

   // Specify assembler output file.
   assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
   if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   }

   // Specify assembler input file.
   // The system assembler on AIX takes exactly one input file. The driver is
   // expected to invoke as(1) separately for each assembler source input file.
   if (Inputs.size() != 1)
     llvm_unreachable("Invalid number of input files.");
   const InputInfo &II = Inputs[0];
   assert((II.isFilename() || II.isNothing()) && "Invalid input.");
   if (II.isFilename())
     CmdArgs.push_back(II.getFilename());

   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
                                          Exec, CmdArgs, Inputs, Output));
 }

 void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
                                const InputInfo &Output,
                                const InputInfoList &Inputs, const ArgList &Args,
                                const char *LinkingOutput) const {
   const AIX &ToolChain = static_cast<const AIX &>(getToolChain());
   const Driver &D = ToolChain.getDriver();
   ArgStringList CmdArgs;

   const bool IsArch32Bit = ToolChain.getTriple().isArch32Bit();
   const bool IsArch64Bit = ToolChain.getTriple().isArch64Bit();
   // Only support 32 and 64 bit.
   if (!(IsArch32Bit || IsArch64Bit))
     llvm_unreachable("Unsupported bit width value.");

   // Force static linking when "-static" is present.
   if (Args.hasArg(options::OPT_static))
     CmdArgs.push_back("-bnso");

   // Add options for shared libraries.
   if (Args.hasArg(options::OPT_shared)) {
     CmdArgs.push_back("-bM:SRE");
     CmdArgs.push_back("-bnoentry");
   }

   // Specify PGO linker option without LTO
   if (!D.isUsingLTO() &&
       (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
                     false) ||
        Args.hasFlag(options::OPT_fprofile_generate,
                     options::OPT_fno_profile_generate, false) ||
        Args.hasFlag(options::OPT_fprofile_generate_EQ,
                     options::OPT_fno_profile_generate, false) ||
        Args.hasFlag(options::OPT_fprofile_instr_generate,
                     options::OPT_fno_profile_instr_generate, false) ||
        Args.hasFlag(options::OPT_fprofile_instr_generate_EQ,
                     options::OPT_fno_profile_instr_generate, false) ||
        Args.hasFlag(options::OPT_fcs_profile_generate,
                     options::OPT_fno_profile_generate, false) ||
        Args.hasFlag(options::OPT_fcs_profile_generate_EQ,
                     options::OPT_fno_profile_generate, false) ||
        Args.hasArg(options::OPT_fcreate_profile) ||
        Args.hasArg(options::OPT_coverage)))
     CmdArgs.push_back("-bdbg:namedsects");

   // Specify linker output file.
   assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
   if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());
   }

   // Set linking mode (i.e., 32/64-bit) and the address of
   // text and data sections based on arch bit width.
   if (IsArch32Bit) {
     CmdArgs.push_back("-b32");
     CmdArgs.push_back("-bpT:0x10000000");
     CmdArgs.push_back("-bpD:0x20000000");
   } else {
     // Must be 64-bit, otherwise asserted already.
     CmdArgs.push_back("-b64");
     CmdArgs.push_back("-bpT:0x100000000");
     CmdArgs.push_back("-bpD:0x110000000");
   }

   auto getCrt0Basename = [&Args, IsArch32Bit] {
     // Enable gprofiling when "-pg" is specified.
     if (Args.hasArg(options::OPT_pg))
       return IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o";
     // Enable profiling when "-p" is specified.
     else if (Args.hasArg(options::OPT_p))
       return IsArch32Bit ? "mcrt0.o" : "mcrt0_64.o";
     else
       return IsArch32Bit ? "crt0.o" : "crt0_64.o";
   };

   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
                    options::OPT_shared)) {
     CmdArgs.push_back(
         Args.MakeArgString(ToolChain.GetFilePath(getCrt0Basename())));

     CmdArgs.push_back(Args.MakeArgString(
         ToolChain.GetFilePath(IsArch32Bit ? "crti.o" : "crti_64.o")));
   }

   // Collect all static constructor and destructor functions in both C and CXX
   // language link invocations. This has to come before AddLinkerInputs as the
   // implied option needs to precede any other '-bcdtors' settings or
   // '-bnocdtors' that '-Wl' might forward.
   CmdArgs.push_back("-bcdtors:all:0:s");

   // Specify linker input file(s).
   AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);

   // Add directory to library search path.
   Args.AddAllArgs(CmdArgs, options::OPT_L);
   ToolChain.AddFilePathLibArgs(Args, CmdArgs);
   ToolChain.addProfileRTLibs(Args, CmdArgs);

   if (getToolChain().ShouldLinkCXXStdlib(Args))
     getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);

   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
     AddRunTimeLibs(ToolChain, D, CmdArgs, Args);

     // Support POSIX threads if "-pthreads" or "-pthread" is present.
     if (Args.hasArg(options::OPT_pthreads, options::OPT_pthread))
       CmdArgs.push_back("-lpthreads");

     if (D.CCCIsCXX())
       CmdArgs.push_back("-lm");

     CmdArgs.push_back("-lc");
   }

   const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
                                          Exec, CmdArgs, Inputs, Output));
 }

 /// AIX - AIX tool chain which can call as(1) and ld(1) directly.
 AIX::AIX(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
     : ToolChain(D, Triple, Args) {
   ParseInlineAsmUsingAsmParser = Args.hasFlag(
       options::OPT_fintegrated_as, options::OPT_fno_integrated_as, true);
   getLibraryPaths().push_back(getDriver().SysRoot + "/usr/lib");
 }

 // Returns the effective header sysroot path to use.
 // This comes from either -isysroot or --sysroot.
 llvm::StringRef
 AIX::GetHeaderSysroot(const llvm::opt::ArgList &DriverArgs) const {
   if (DriverArgs.hasArg(options::OPT_isysroot))
     return DriverArgs.getLastArgValue(options::OPT_isysroot);
   if (!getDriver().SysRoot.empty())
     return getDriver().SysRoot;
   return "/";
 }

 void AIX::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
                                     ArgStringList &CC1Args) const {
   // Return if -nostdinc is specified as a driver option.
   if (DriverArgs.hasArg(options::OPT_nostdinc))
     return;

   llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);
   const Driver &D = getDriver();

   // Add the Clang builtin headers (<resource>/include).
   if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
     SmallString<128> P(D.ResourceDir);
     path::append(P, "/include");
     addSystemInclude(DriverArgs, CC1Args, P.str());
   }

   // Return if -nostdlibinc is specified as a driver option.
   if (DriverArgs.hasArg(options::OPT_nostdlibinc))
     return;

   // Add <sysroot>/usr/include.
   SmallString<128> UP(Sysroot);
   path::append(UP, "/usr/include");
   addSystemInclude(DriverArgs, CC1Args, UP.str());
 }

 void AIX::AddClangCXXStdlibIncludeArgs(
     const llvm::opt::ArgList &DriverArgs,
     llvm::opt::ArgStringList &CC1Args) const {

   if (DriverArgs.hasArg(options::OPT_nostdinc) ||
       DriverArgs.hasArg(options::OPT_nostdincxx) ||
       DriverArgs.hasArg(options::OPT_nostdlibinc))
     return;

   switch (GetCXXStdlibType(DriverArgs)) {
   case ToolChain::CST_Libstdcxx:
     llvm::report_fatal_error(
         "picking up libstdc++ headers is unimplemented on AIX");
   case ToolChain::CST_Libcxx: {
     llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);
     SmallString<128> PathCPP(Sysroot);
     llvm::sys::path::append(PathCPP, "opt/IBM/openxlCSDK", "include", "c++",
                             "v1");
     addSystemInclude(DriverArgs, CC1Args, PathCPP.str());
     // Required in order to suppress conflicting C++ overloads in the system
     // libc headers that were used by XL C++.
     CC1Args.push_back("-D__LIBC_NO_CPP_MATH_OVERLOADS__");
     return;
   }
   }

   llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");
 }

 void AIX::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
                               llvm::opt::ArgStringList &CmdArgs) const {
   switch (GetCXXStdlibType(Args)) {
   case ToolChain::CST_Libstdcxx:
     llvm::report_fatal_error("linking libstdc++ unimplemented on AIX");
   case ToolChain::CST_Libcxx:
     CmdArgs.push_back("-lc++");
     CmdArgs.push_back("-lc++abi");
     return;
   }

   llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");
 }

 ToolChain::CXXStdlibType AIX::GetDefaultCXXStdlibType() const {
   return ToolChain::CST_Libcxx;
 }

 ToolChain::RuntimeLibType AIX::GetDefaultRuntimeLibType() const {
   return ToolChain::RLT_CompilerRT;
 }

 auto AIX::buildAssembler() const -> Tool * { return new aix::Assembler(*this); }

 auto AIX::buildLinker() const -> Tool * { return new aix::Linker(*this); }
	//===--- AIX.cpp - AIX ToolChain Implementations ----------------- 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 "AIX.h"
	#include "Arch/PPC.h"
	#include "CommonArgs.h"
	#include "clang/Driver/Compilation.h"
	#include "clang/Driver/Options.h"
	#include "clang/Driver/SanitizerArgs.h"
	#include "llvm/Option/ArgList.h"
	#include "llvm/Support/Path.h"

	using AIX = clang::driver::toolchains::AIX;
	using namespace clang::driver;
	using namespace clang::driver::tools;
	using namespace clang::driver::toolchains;

	using namespace llvm::opt;
	using namespace llvm::sys;

	void aix::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
	const InputInfo &Output,
	const InputInfoList &Inputs,
	const ArgList &Args,
	const char *LinkingOutput) const {
	ArgStringList CmdArgs;

	const bool IsArch32Bit = getToolChain().getTriple().isArch32Bit();
	const bool IsArch64Bit = getToolChain().getTriple().isArch64Bit();
	// Only support 32 and 64 bit.
	if (!IsArch32Bit && !IsArch64Bit)
	llvm_unreachable("Unsupported bit width value.");

	// Specify the mode in which the as(1) command operates.
	if (IsArch32Bit) {
	CmdArgs.push_back("-a32");
	} else {
	// Must be 64-bit, otherwise asserted already.
	CmdArgs.push_back("-a64");
	}

	// Accept any mixture of instructions.
	// On Power for AIX and Linux, this behaviour matches that of GCC for both the
	// user-provided assembler source case and the compiler-produced assembler
	// source case. Yet XL with user-provided assembler source would not add this.
	CmdArgs.push_back("-many");

	Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);

	// Specify assembler output file.
	assert((Output.isFilename() \|\| Output.isNothing()) && "Invalid output.");
	if (Output.isFilename()) {
	CmdArgs.push_back("-o");
	CmdArgs.push_back(Output.getFilename());
	}

	// Specify assembler input file.
	// The system assembler on AIX takes exactly one input file. The driver is
	// expected to invoke as(1) separately for each assembler source input file.
	if (Inputs.size() != 1)
	llvm_unreachable("Invalid number of input files.");
	const InputInfo &II = Inputs[0];
	assert((II.isFilename() \|\| II.isNothing()) && "Invalid input.");
	if (II.isFilename())
	CmdArgs.push_back(II.getFilename());

	const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
	C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
	Exec, CmdArgs, Inputs, Output));
	}

	void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
	const InputInfo &Output,
	const InputInfoList &Inputs, const ArgList &Args,
	const char *LinkingOutput) const {
	const AIX &ToolChain = static_cast<const AIX &>(getToolChain());
	const Driver &D = ToolChain.getDriver();
	ArgStringList CmdArgs;

	const bool IsArch32Bit = ToolChain.getTriple().isArch32Bit();
	const bool IsArch64Bit = ToolChain.getTriple().isArch64Bit();
	// Only support 32 and 64 bit.
	if (!(IsArch32Bit \|\| IsArch64Bit))
	llvm_unreachable("Unsupported bit width value.");

	// Force static linking when "-static" is present.
	if (Args.hasArg(options::OPT_static))
	CmdArgs.push_back("-bnso");

	// Add options for shared libraries.
	if (Args.hasArg(options::OPT_shared)) {
	CmdArgs.push_back("-bM:SRE");
	CmdArgs.push_back("-bnoentry");
	}

	// Specify PGO linker option without LTO
	if (!D.isUsingLTO() &&
	(Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
	false) \|\|
	Args.hasFlag(options::OPT_fprofile_generate,
	options::OPT_fno_profile_generate, false) \|\|
	Args.hasFlag(options::OPT_fprofile_generate_EQ,
	options::OPT_fno_profile_generate, false) \|\|
	Args.hasFlag(options::OPT_fprofile_instr_generate,
	options::OPT_fno_profile_instr_generate, false) \|\|
	Args.hasFlag(options::OPT_fprofile_instr_generate_EQ,
	options::OPT_fno_profile_instr_generate, false) \|\|
	Args.hasFlag(options::OPT_fcs_profile_generate,
	options::OPT_fno_profile_generate, false) \|\|
	Args.hasFlag(options::OPT_fcs_profile_generate_EQ,
	options::OPT_fno_profile_generate, false) \|\|
	Args.hasArg(options::OPT_fcreate_profile) \|\|
	Args.hasArg(options::OPT_coverage)))
	CmdArgs.push_back("-bdbg:namedsects");

	// Specify linker output file.
	assert((Output.isFilename() \|\| Output.isNothing()) && "Invalid output.");
	if (Output.isFilename()) {
	CmdArgs.push_back("-o");
	CmdArgs.push_back(Output.getFilename());
	}

	// Set linking mode (i.e., 32/64-bit) and the address of
	// text and data sections based on arch bit width.
	if (IsArch32Bit) {
	CmdArgs.push_back("-b32");
	CmdArgs.push_back("-bpT:0x10000000");
	CmdArgs.push_back("-bpD:0x20000000");
	} else {
	// Must be 64-bit, otherwise asserted already.
	CmdArgs.push_back("-b64");
	CmdArgs.push_back("-bpT:0x100000000");
	CmdArgs.push_back("-bpD:0x110000000");
	}

	auto getCrt0Basename = [&Args, IsArch32Bit] {
	// Enable gprofiling when "-pg" is specified.
	if (Args.hasArg(options::OPT_pg))
	return IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o";
	// Enable profiling when "-p" is specified.
	else if (Args.hasArg(options::OPT_p))
	return IsArch32Bit ? "mcrt0.o" : "mcrt0_64.o";
	else
	return IsArch32Bit ? "crt0.o" : "crt0_64.o";
	};

	if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
	options::OPT_shared)) {
	CmdArgs.push_back(
	Args.MakeArgString(ToolChain.GetFilePath(getCrt0Basename())));

	CmdArgs.push_back(Args.MakeArgString(
	ToolChain.GetFilePath(IsArch32Bit ? "crti.o" : "crti_64.o")));
	}

	// Collect all static constructor and destructor functions in both C and CXX
	// language link invocations. This has to come before AddLinkerInputs as the
	// implied option needs to precede any other '-bcdtors' settings or
	// '-bnocdtors' that '-Wl' might forward.
	CmdArgs.push_back("-bcdtors:all:0:s");

	// Specify linker input file(s).
	AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);

	// Add directory to library search path.
	Args.AddAllArgs(CmdArgs, options::OPT_L);
	ToolChain.AddFilePathLibArgs(Args, CmdArgs);
	ToolChain.addProfileRTLibs(Args, CmdArgs);

	if (getToolChain().ShouldLinkCXXStdlib(Args))
	getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);

	if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
	AddRunTimeLibs(ToolChain, D, CmdArgs, Args);

	// Support POSIX threads if "-pthreads" or "-pthread" is present.
	if (Args.hasArg(options::OPT_pthreads, options::OPT_pthread))
	CmdArgs.push_back("-lpthreads");

	if (D.CCCIsCXX())
	CmdArgs.push_back("-lm");

	CmdArgs.push_back("-lc");
	}

	const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
	C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
	Exec, CmdArgs, Inputs, Output));
	}

	/// AIX - AIX tool chain which can call as(1) and ld(1) directly.
	AIX::AIX(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
	: ToolChain(D, Triple, Args) {
	ParseInlineAsmUsingAsmParser = Args.hasFlag(
	options::OPT_fintegrated_as, options::OPT_fno_integrated_as, true);
	getLibraryPaths().push_back(getDriver().SysRoot + "/usr/lib");
	}

	// Returns the effective header sysroot path to use.
	// This comes from either -isysroot or --sysroot.
	llvm::StringRef
	AIX::GetHeaderSysroot(const llvm::opt::ArgList &DriverArgs) const {
	if (DriverArgs.hasArg(options::OPT_isysroot))
	return DriverArgs.getLastArgValue(options::OPT_isysroot);
	if (!getDriver().SysRoot.empty())
	return getDriver().SysRoot;
	return "/";
	}

	void AIX::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
	ArgStringList &CC1Args) const {
	// Return if -nostdinc is specified as a driver option.
	if (DriverArgs.hasArg(options::OPT_nostdinc))
	return;

	llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);
	const Driver &D = getDriver();

	// Add the Clang builtin headers (<resource>/include).
	if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
	SmallString<128> P(D.ResourceDir);
	path::append(P, "/include");
	addSystemInclude(DriverArgs, CC1Args, P.str());
	}

	// Return if -nostdlibinc is specified as a driver option.
	if (DriverArgs.hasArg(options::OPT_nostdlibinc))
	return;

	// Add <sysroot>/usr/include.
	SmallString<128> UP(Sysroot);
	path::append(UP, "/usr/include");
	addSystemInclude(DriverArgs, CC1Args, UP.str());
	}

	void AIX::AddClangCXXStdlibIncludeArgs(
	const llvm::opt::ArgList &DriverArgs,
	llvm::opt::ArgStringList &CC1Args) const {

	if (DriverArgs.hasArg(options::OPT_nostdinc) \|\|
	DriverArgs.hasArg(options::OPT_nostdincxx) \|\|
	DriverArgs.hasArg(options::OPT_nostdlibinc))
	return;

	switch (GetCXXStdlibType(DriverArgs)) {
	case ToolChain::CST_Libstdcxx:
	llvm::report_fatal_error(
	"picking up libstdc++ headers is unimplemented on AIX");
	case ToolChain::CST_Libcxx: {
	llvm::StringRef Sysroot = GetHeaderSysroot(DriverArgs);
	SmallString<128> PathCPP(Sysroot);
	llvm::sys::path::append(PathCPP, "opt/IBM/openxlCSDK", "include", "c++",
	"v1");
	addSystemInclude(DriverArgs, CC1Args, PathCPP.str());
	// Required in order to suppress conflicting C++ overloads in the system
	// libc headers that were used by XL C++.
	CC1Args.push_back("-D__LIBC_NO_CPP_MATH_OVERLOADS__");
	return;
	}
	}

	llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");
	}

	void AIX::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
	llvm::opt::ArgStringList &CmdArgs) const {
	switch (GetCXXStdlibType(Args)) {
	case ToolChain::CST_Libstdcxx:
	llvm::report_fatal_error("linking libstdc++ unimplemented on AIX");
	case ToolChain::CST_Libcxx:
	CmdArgs.push_back("-lc++");
	CmdArgs.push_back("-lc++abi");
	return;
	}

	llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");
	}

	ToolChain::CXXStdlibType AIX::GetDefaultCXXStdlibType() const {
	return ToolChain::CST_Libcxx;
	}

	ToolChain::RuntimeLibType AIX::GetDefaultRuntimeLibType() const {
	return ToolChain::RLT_CompilerRT;
	}

	auto AIX::buildAssembler() const -> Tool * { return new aix::Assembler(*this); }

	auto AIX::buildLinker() const -> Tool * { return new aix::Linker(*this); }