[cfe][driver][M68k](8/8) Clang driver support

Add M68k-specific toolchain and driver configurations / options.

Authors: myhsu, m4yers, glaubitz

Differential Revision: https://reviews.llvm.org/D88394
This commit is contained in:
Min-Yih Hsu 2021-03-07 16:33:30 -08:00
parent 5eb7a5814a
commit 5509748f2c
10 changed files with 258 additions and 0 deletions

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@ -160,6 +160,8 @@ def m_hexagon_Features_Group : OptionGroup<"<hexagon features group>">,
// These are explicitly handled.
def m_hexagon_Features_HVX_Group : OptionGroup<"<hexagon features group>">,
Group<m_Group>, DocName<"Hexagon">;
def m_m68k_Features_Group: OptionGroup<"<m68k features group>">,
Group<m_Group>, DocName<"M68k">;
def m_mips_Features_Group : OptionGroup<"<mips features group>">,
Group<m_Group>, DocName<"MIPS">;
def m_ppc_Features_Group : OptionGroup<"<ppc features group>">,
@ -3895,6 +3897,13 @@ def mnvs : Flag<["-"], "mnvs">, Group<m_hexagon_Features_Group>,
def mno_nvs : Flag<["-"], "mno-nvs">, Group<m_hexagon_Features_Group>,
Flags<[CC1Option]>, HelpText<"Disable generation of new-value stores">;
// M68k features flags
def m68000 : Flag<["-"], "m68000">, Group<m_m68k_Features_Group>;
def m68010 : Flag<["-"], "m68010">, Group<m_m68k_Features_Group>;
def m68020 : Flag<["-"], "m68020">, Group<m_m68k_Features_Group>;
def m68030 : Flag<["-"], "m68030">, Group<m_m68k_Features_Group>;
def m68040 : Flag<["-"], "m68040">, Group<m_m68k_Features_Group>;
def m68060 : Flag<["-"], "m68060">, Group<m_m68k_Features_Group>;
// X86 feature flags
def mx87 : Flag<["-"], "mx87">, Group<m_x86_Features_Group>;

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@ -26,6 +26,7 @@ add_clang_library(clangDriver
ToolChain.cpp
ToolChains/Arch/AArch64.cpp
ToolChains/Arch/ARM.cpp
ToolChains/Arch/M68k.cpp
ToolChains/Arch/Mips.cpp
ToolChains/Arch/PPC.cpp
ToolChains/Arch/RISCV.cpp

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@ -0,0 +1,93 @@
//===--- M68k.cpp - M68k Helpers for Tools -------------------*- 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 "M68k.h"
#include "ToolChains/CommonArgs.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/Regex.h"
#include <sstream>
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang;
using namespace llvm::opt;
/// getM68kTargetCPU - Get the (LLVM) name of the 68000 cpu we are targeting.
std::string m68k::getM68kTargetCPU(const ArgList &Args) {
if (Arg *A = Args.getLastArg(clang::driver::options::OPT_mcpu_EQ)) {
// The canonical CPU name is captalize. However, we allow
// starting with lower case or numbers only
StringRef CPUName = A->getValue();
if (CPUName == "native") {
std::string CPU = std::string(llvm::sys::getHostCPUName());
if (!CPU.empty() && CPU != "generic")
return CPU;
}
if (CPUName == "common")
return "generic";
return llvm::StringSwitch<std::string>(CPUName)
.Cases("m68000", "68000", "M68000")
.Cases("m68010", "68010", "M68010")
.Cases("m68020", "68020", "M68020")
.Cases("m68030", "68030", "M68030")
.Cases("m68040", "68040", "M68040")
.Cases("m68060", "68060", "M68060")
.Default(CPUName.str());
}
// FIXME: Throw error when multiple sub-architecture flag exist
if (Args.hasArg(clang::driver::options::OPT_m68000))
return "M68000";
if (Args.hasArg(clang::driver::options::OPT_m68010))
return "M68010";
if (Args.hasArg(clang::driver::options::OPT_m68020))
return "M68020";
if (Args.hasArg(clang::driver::options::OPT_m68030))
return "M68030";
if (Args.hasArg(clang::driver::options::OPT_m68040))
return "M68040";
if (Args.hasArg(clang::driver::options::OPT_m68060))
return "M68060";
return "";
}
void m68k::getM68kTargetFeatures(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args,
std::vector<StringRef> &Features) {
m68k::FloatABI FloatABI = m68k::getM68kFloatABI(D, Args);
if (FloatABI == m68k::FloatABI::Soft)
Features.push_back("-hard-float");
}
m68k::FloatABI m68k::getM68kFloatABI(const Driver &D, const ArgList &Args) {
m68k::FloatABI ABI = m68k::FloatABI::Invalid;
if (Arg *A =
Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float)) {
if (A->getOption().matches(options::OPT_msoft_float))
ABI = m68k::FloatABI::Soft;
else if (A->getOption().matches(options::OPT_mhard_float))
ABI = m68k::FloatABI::Hard;
}
// If unspecified, choose the default based on the platform.
if (ABI == m68k::FloatABI::Invalid)
ABI = m68k::FloatABI::Hard;
return ABI;
}

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@ -0,0 +1,42 @@
//===--- M68k.h - M68k-specific Tool Helpers -----------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_M680X0_H
#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_M680X0_H
#include "clang/Driver/Driver.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Option/Option.h"
#include <string>
#include <vector>
namespace clang {
namespace driver {
namespace tools {
namespace m68k {
enum class FloatABI {
Invalid,
Soft,
Hard,
};
FloatABI getM68kFloatABI(const Driver &D, const llvm::opt::ArgList &Args);
std::string getM68kTargetCPU(const llvm::opt::ArgList &Args);
void getM68kTargetFeatures(const Driver &D, const llvm::Triple &Triple,
const llvm::opt::ArgList &Args,
std::vector<llvm::StringRef> &Features);
} // end namespace m68k
} // end namespace tools
} // end namespace driver
} // end namespace clang
#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_M680X0_H

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@ -10,6 +10,7 @@
#include "AMDGPU.h"
#include "Arch/AArch64.h"
#include "Arch/ARM.h"
#include "Arch/M68k.h"
#include "Arch/Mips.h"
#include "Arch/PPC.h"
#include "Arch/RISCV.h"
@ -365,6 +366,9 @@ static void getTargetFeatures(const Driver &D, const llvm::Triple &Triple,
case llvm::Triple::amdgcn:
amdgpu::getAMDGPUTargetFeatures(D, Triple, Args, Features);
break;
case llvm::Triple::m68k:
m68k::getM68kTargetFeatures(D, Triple, Args, Features);
break;
case llvm::Triple::msp430:
msp430::getMSP430TargetFeatures(D, Args, Features);
break;

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@ -9,6 +9,7 @@
#include "CommonArgs.h"
#include "Arch/AArch64.h"
#include "Arch/ARM.h"
#include "Arch/M68k.h"
#include "Arch/Mips.h"
#include "Arch/PPC.h"
#include "Arch/SystemZ.h"
@ -372,6 +373,9 @@ std::string tools::getCPUName(const ArgList &Args, const llvm::Triple &T,
return A->getValue();
return "";
case llvm::Triple::m68k:
return m68k::getM68kTargetCPU(Args);
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:

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@ -254,6 +254,8 @@ static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
case llvm::Triple::armeb:
case llvm::Triple::thumbeb:
return isArmBigEndian(T, Args) ? "armelfb_linux_eabi" : "armelf_linux_eabi";
case llvm::Triple::m68k:
return "m68kelf";
case llvm::Triple::ppc:
if (T.isOSLinux())
return "elf32ppclinux";
@ -2114,6 +2116,10 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
"i686-linux-android", "i386-gnu", "i486-gnu",
"i586-gnu", "i686-gnu"};
static const char *const M68kLibDirs[] = {"/lib"};
static const char *const M68kTriples[] = {
"m68k-linux-gnu", "m68k-unknown-linux-gnu", "m68k-suse-linux"};
static const char *const MIPSLibDirs[] = {"/lib"};
static const char *const MIPSTriples[] = {
"mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
@ -2353,6 +2359,10 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
}
break;
case llvm::Triple::m68k:
LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
TripleAliases.append(begin(M68kTriples), end(M68kTriples));
break;
case llvm::Triple::mips:
LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
@ -2760,6 +2770,7 @@ bool Generic_GCC::IsIntegratedAssemblerDefault() const {
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
case llvm::Triple::msp430:
case llvm::Triple::m68k:
return true;
case llvm::Triple::sparc:
case llvm::Triple::sparcel:

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@ -102,6 +102,12 @@ std::string Linux::getMultiarchTriple(const Driver &D,
if (D.getVFS().exists(SysRoot + "/lib/aarch64_be-linux-gnu"))
return "aarch64_be-linux-gnu";
break;
case llvm::Triple::m68k:
if (D.getVFS().exists(SysRoot + "/lib/m68k-linux-gnu"))
return "m68k-linux-gnu";
break;
case llvm::Triple::mips: {
std::string MT = IsMipsR6 ? "mipsisa32r6-linux-gnu" : "mips-linux-gnu";
if (D.getVFS().exists(SysRoot + "/lib/" + MT))
@ -476,6 +482,10 @@ std::string Linux::getDynamicLinker(const ArgList &Args) const {
Loader = HF ? "ld-linux-armhf.so.3" : "ld-linux.so.3";
break;
}
case llvm::Triple::m68k:
LibDir = "lib";
Loader = "ld.so.1";
break;
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::mips64:
@ -624,6 +634,7 @@ void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
"/usr/include/armeb-linux-gnueabi"};
const StringRef ARMEBHFMultiarchIncludeDirs[] = {
"/usr/include/armeb-linux-gnueabihf"};
const StringRef M68kMultiarchIncludeDirs[] = {"/usr/include/m68k-linux-gnu"};
const StringRef MIPSMultiarchIncludeDirs[] = {"/usr/include/mips-linux-gnu"};
const StringRef MIPSELMultiarchIncludeDirs[] = {
"/usr/include/mipsel-linux-gnu"};
@ -688,6 +699,9 @@ void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
else
MultiarchIncludeDirs = ARMEBMultiarchIncludeDirs;
break;
case llvm::Triple::m68k:
MultiarchIncludeDirs = M68kMultiarchIncludeDirs;
break;
case llvm::Triple::mips:
if (getTriple().getSubArch() == llvm::Triple::MipsSubArch_r6)
MultiarchIncludeDirs = MIPSR6MultiarchIncludeDirs;

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@ -0,0 +1,45 @@
// Check macro definitions
// RUN: %clang -target m68k-unknown-linux -m68000 -dM -E %s | FileCheck --check-prefix=CHECK-MX %s
// CHECK-MX: #define __mc68000 1
// CHECK-MX: #define __mc68000__ 1
// CHECK-MX: #define mc68000 1
// RUN: %clang -target m68k-unknown-linux -m68010 -dM -E %s | FileCheck --check-prefix=CHECK-MX10 %s
// CHECK-MX10: #define __mc68000 1
// CHECK-MX10: #define __mc68000__ 1
// CHECK-MX10: #define __mc68010 1
// CHECK-MX10: #define __mc68010__ 1
// CHECK-MX10: #define mc68000 1
// CHECK-MX10: #define mc68010 1
// RUN: %clang -target m68k-unknown-linux -m68020 -dM -E %s | FileCheck --check-prefix=CHECK-MX20 %s
// CHECK-MX20: #define __mc68000 1
// CHECK-MX20: #define __mc68000__ 1
// CHECK-MX20: #define __mc68020 1
// CHECK-MX20: #define __mc68020__ 1
// CHECK-MX20: #define mc68000 1
// CHECK-MX20: #define mc68020 1
// RUN: %clang -target m68k-unknown-linux -m68030 -dM -E %s | FileCheck --check-prefix=CHECK-MX30 %s
// CHECK-MX30: #define __mc68000 1
// CHECK-MX30: #define __mc68000__ 1
// CHECK-MX30: #define __mc68030 1
// CHECK-MX30: #define __mc68030__ 1
// CHECK-MX30: #define mc68000 1
// CHECK-MX30: #define mc68030 1
// RUN: %clang -target m68k-unknown-linux -m68040 -dM -E %s | FileCheck --check-prefix=CHECK-MX40 %s
// CHECK-MX40: #define __mc68000 1
// CHECK-MX40: #define __mc68000__ 1
// CHECK-MX40: #define __mc68040 1
// CHECK-MX40: #define __mc68040__ 1
// CHECK-MX40: #define mc68000 1
// CHECK-MX40: #define mc68040 1
// RUN: %clang -target m68k-unknown-linux -m68060 -dM -E %s | FileCheck --check-prefix=CHECK-MX60 %s
// CHECK-MX60: #define __mc68000 1
// CHECK-MX60: #define __mc68000__ 1
// CHECK-MX60: #define __mc68060 1
// CHECK-MX60: #define __mc68060__ 1
// CHECK-MX60: #define mc68000 1
// CHECK-MX60: #define mc68060 1

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@ -0,0 +1,35 @@
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68000 %s 2>&1 | FileCheck --check-prefix=CHECK-M00 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68000 %s 2>&1 | FileCheck --check-prefix=CHECK-M00 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68000 %s 2>&1 | FileCheck --check-prefix=CHECK-M00 %s
// RUN: %clang -### -target m68k-unknown-linux -m68000 %s 2>&1 | FileCheck --check-prefix=CHECK-M00 %s
// CHECK-M00: "-target-cpu" "M68000"
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68010 %s 2>&1 | FileCheck --check-prefix=CHECK-M10 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68010 %s 2>&1 | FileCheck --check-prefix=CHECK-M10 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68010 %s 2>&1 | FileCheck --check-prefix=CHECK-M10 %s
// RUN: %clang -### -target m68k-unknown-linux -m68010 %s 2>&1 | FileCheck --check-prefix=CHECK-M10 %s
// CHECK-M10: "-target-cpu" "M68010"
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68020 %s 2>&1 | FileCheck --check-prefix=CHECK-M20 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68020 %s 2>&1 | FileCheck --check-prefix=CHECK-M20 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68020 %s 2>&1 | FileCheck --check-prefix=CHECK-M20 %s
// RUN: %clang -### -target m68k-unknown-linux -m68020 %s 2>&1 | FileCheck --check-prefix=CHECK-M20 %s
// CHECK-M20: "-target-cpu" "M68020"
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68030 %s 2>&1 | FileCheck --check-prefix=CHECK-M30 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68030 %s 2>&1 | FileCheck --check-prefix=CHECK-M30 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68030 %s 2>&1 | FileCheck --check-prefix=CHECK-M30 %s
// RUN: %clang -### -target m68k-unknown-linux -m68030 %s 2>&1 | FileCheck --check-prefix=CHECK-M30 %s
// CHECK-M30: "-target-cpu" "M68030"
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68040 %s 2>&1 | FileCheck --check-prefix=CHECK-M40 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68040 %s 2>&1 | FileCheck --check-prefix=CHECK-M40 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68040 %s 2>&1 | FileCheck --check-prefix=CHECK-M40 %s
// RUN: %clang -### -target m68k-unknown-linux -m68040 %s 2>&1 | FileCheck --check-prefix=CHECK-M40 %s
// CHECK-M40: "-target-cpu" "M68040"
// RUN: %clang -### -target m68k-unknown-linux -mcpu=68060 %s 2>&1 | FileCheck --check-prefix=CHECK-M60 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=m68060 %s 2>&1 | FileCheck --check-prefix=CHECK-M60 %s
// RUN: %clang -### -target m68k-unknown-linux -mcpu=M68060 %s 2>&1 | FileCheck --check-prefix=CHECK-M60 %s
// RUN: %clang -### -target m68k-unknown-linux -m68060 %s 2>&1 | FileCheck --check-prefix=CHECK-M60 %s
// CHECK-M60: "-target-cpu" "M68060"