[clang] 5509748 - [cfe][driver][M68k](8/8) Clang driver support
Min-Yih Hsu via cfe-commits
cfe-commits at lists.llvm.org
Mon Mar 8 12:33:59 PST 2021
Author: Min-Yih Hsu
Date: 2021-03-08T12:30:57-08:00
New Revision: 5509748f2ce5e06bda7da754297d09a0e68a1f30
URL: https://github.com/llvm/llvm-project/commit/5509748f2ce5e06bda7da754297d09a0e68a1f30
DIFF: https://github.com/llvm/llvm-project/commit/5509748f2ce5e06bda7da754297d09a0e68a1f30.diff
LOG: [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
Added:
clang/lib/Driver/ToolChains/Arch/M68k.cpp
clang/lib/Driver/ToolChains/Arch/M68k.h
clang/test/Driver/m68k-features.cpp
clang/test/Driver/m68k-sub-archs.cpp
Modified:
clang/include/clang/Driver/Options.td
clang/lib/Driver/CMakeLists.txt
clang/lib/Driver/ToolChains/Clang.cpp
clang/lib/Driver/ToolChains/CommonArgs.cpp
clang/lib/Driver/ToolChains/Gnu.cpp
clang/lib/Driver/ToolChains/Linux.cpp
Removed:
################################################################################
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 9172215bc512..8e71aff2e96d 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -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>;
diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt
index 7542daf3b8f7..f59141f9e19f 100644
--- a/clang/lib/Driver/CMakeLists.txt
+++ b/clang/lib/Driver/CMakeLists.txt
@@ -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
diff --git a/clang/lib/Driver/ToolChains/Arch/M68k.cpp b/clang/lib/Driver/ToolChains/Arch/M68k.cpp
new file mode 100644
index 000000000000..66c9f5c87bfb
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Arch/M68k.cpp
@@ -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;
+}
diff --git a/clang/lib/Driver/ToolChains/Arch/M68k.h b/clang/lib/Driver/ToolChains/Arch/M68k.h
new file mode 100644
index 000000000000..41d53efb940b
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Arch/M68k.h
@@ -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
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 28ac00e970c4..4995ce9021bf 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -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;
diff --git a/clang/lib/Driver/ToolChains/CommonArgs.cpp b/clang/lib/Driver/ToolChains/CommonArgs.cpp
index 5afb213a178b..62432b5b7576 100644
--- a/clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -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:
diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp
index 1d8a3cdce92a..3d88053c6b08 100644
--- a/clang/lib/Driver/ToolChains/Gnu.cpp
+++ b/clang/lib/Driver/ToolChains/Gnu.cpp
@@ -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:
diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp
index b7b992124d30..93a56be6a7a4 100644
--- a/clang/lib/Driver/ToolChains/Linux.cpp
+++ b/clang/lib/Driver/ToolChains/Linux.cpp
@@ -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;
diff --git a/clang/test/Driver/m68k-features.cpp b/clang/test/Driver/m68k-features.cpp
new file mode 100644
index 000000000000..8f85815e7552
--- /dev/null
+++ b/clang/test/Driver/m68k-features.cpp
@@ -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
diff --git a/clang/test/Driver/m68k-sub-archs.cpp b/clang/test/Driver/m68k-sub-archs.cpp
new file mode 100644
index 000000000000..e5517d237cdd
--- /dev/null
+++ b/clang/test/Driver/m68k-sub-archs.cpp
@@ -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"
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