llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-clang Author: no92 (no92) <details> <summary>Changes</summary> This PR is part of a series to upstream managarm support, as laid out in the [RFC](https://discourse.llvm.org/t/rfc-new-proposed-managarm-support-for-llvm-and-clang-87845/85884/1). This PR is a follow-up to #<!-- -->87845 and #<!-- -->138854. --- Patch is 38.11 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/139271.diff 33 Files Affected: - (modified) clang/lib/Basic/Targets.cpp (+9) - (modified) clang/lib/Basic/Targets/OSTargets.h (+30) - (modified) clang/lib/Driver/CMakeLists.txt (+1) - (modified) clang/lib/Driver/Driver.cpp (+4) - (modified) clang/lib/Driver/ToolChains/Gnu.cpp (+2) - (added) clang/lib/Driver/ToolChains/Managarm.cpp (+221) - (added) clang/lib/Driver/ToolChains/Managarm.h (+55) - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib/aarch64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib/riscv64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib/x86_64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib64/aarch64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib64/riscv64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/lib64/x86_64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/include/aarch64-managarm-mlibc/c++/10/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/include/c++/10/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/include/riscv64-managarm-mlibc/c++/10/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/include/x86_64-managarm-mlibc/c++/10/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/aarch64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbegin.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginS.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginT.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/riscv64-managarm-mlibc/10/crtbegin.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/riscv64-managarm-mlibc/10/crtbeginS.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/riscv64-managarm-mlibc/10/crtbeginT.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbegin.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginS.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginT.o () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/riscv64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/x86_64-managarm-mlibc/.keep () - (added) clang/test/Driver/Inputs/basic_managarm_tree/usr/lib64/.keep () - (added) clang/test/Driver/managarm.cpp (+195) - (modified) clang/test/Preprocessor/init.c (+5) - (modified) clang/test/Preprocessor/predefined-macros-no-warnings.c (+3) ``````````diff diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp index 9889141ad2085..af1111a863308 100644 --- a/clang/lib/Basic/Targets.cpp +++ b/clang/lib/Basic/Targets.cpp @@ -164,6 +164,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple, return std::make_unique<OHOSTargetInfo<AArch64leTargetInfo>>(Triple, Opts); } + case llvm::Triple::Managarm: + return std::make_unique<ManagarmTargetInfo<AArch64leTargetInfo>>(Triple, + Opts); case llvm::Triple::NetBSD: return std::make_unique<NetBSDTargetInfo<AArch64leTargetInfo>>(Triple, Opts); @@ -466,6 +469,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple, return std::make_unique<OHOSTargetInfo<RISCV64TargetInfo>>(Triple, Opts); } + case llvm::Triple::Managarm: + return std::make_unique<ManagarmTargetInfo<RISCV64TargetInfo>>(Triple, + Opts); default: return std::make_unique<RISCV64TargetInfo>(Triple, Opts); } @@ -654,6 +660,9 @@ std::unique_ptr<TargetInfo> AllocateTarget(const llvm::Triple &Triple, return std::make_unique<PS5OSTargetInfo<X86_64TargetInfo>>(Triple, Opts); case llvm::Triple::Hurd: return std::make_unique<HurdTargetInfo<X86_64TargetInfo>>(Triple, Opts); + case llvm::Triple::Managarm: + return std::make_unique<ManagarmTargetInfo<X86_64TargetInfo>>(Triple, + Opts); default: return std::make_unique<X86_64TargetInfo>(Triple, Opts); } diff --git a/clang/lib/Basic/Targets/OSTargets.h b/clang/lib/Basic/Targets/OSTargets.h index d148b38d03c7c..5dac699c2bb45 100644 --- a/clang/lib/Basic/Targets/OSTargets.h +++ b/clang/lib/Basic/Targets/OSTargets.h @@ -395,6 +395,36 @@ class LLVM_LIBRARY_VISIBILITY LinuxTargetInfo : public OSTargetInfo<Target> { } }; +// Managarm Target +template <typename Target> +class LLVM_LIBRARY_VISIBILITY ManagarmTargetInfo : public OSTargetInfo<Target> { +protected: + void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple, + MacroBuilder &Builder) const override { + DefineStd(Builder, "unix", Opts); + Builder.defineMacro("__managarm__"); + if (Opts.POSIXThreads) + Builder.defineMacro("_REENTRANT"); + if (Opts.CPlusPlus) + Builder.defineMacro("_GNU_SOURCE"); + if (this->HasFloat128) + Builder.defineMacro("__FLOAT128__"); + } + +public: + ManagarmTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) + : OSTargetInfo<Target>(Triple, Opts) { + switch (Triple.getArch()) { + default: + break; + case llvm::Triple::x86: + case llvm::Triple::x86_64: + this->HasFloat128 = true; + break; + } + } +}; + // NetBSD Target template <typename Target> class LLVM_LIBRARY_VISIBILITY NetBSDTargetInfo : public OSTargetInfo<Target> { diff --git a/clang/lib/Driver/CMakeLists.txt b/clang/lib/Driver/CMakeLists.txt index 44e16edfb1ccf..3cfd671e9d8f2 100644 --- a/clang/lib/Driver/CMakeLists.txt +++ b/clang/lib/Driver/CMakeLists.txt @@ -66,6 +66,7 @@ add_clang_library(clangDriver ToolChains/HLSL.cpp ToolChains/Hurd.cpp ToolChains/Linux.cpp + ToolChains/Managarm.cpp ToolChains/MipsLinux.cpp ToolChains/MinGW.cpp ToolChains/MSP430.cpp diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp index e844f0d6d5400..e6b165d551cef 100644 --- a/clang/lib/Driver/Driver.cpp +++ b/clang/lib/Driver/Driver.cpp @@ -33,6 +33,7 @@ #include "ToolChains/Linux.h" #include "ToolChains/MSP430.h" #include "ToolChains/MSVC.h" +#include "ToolChains/Managarm.h" #include "ToolChains/MinGW.h" #include "ToolChains/MipsLinux.h" #include "ToolChains/NaCl.h" @@ -6827,6 +6828,9 @@ const ToolChain &Driver::getToolChain(const ArgList &Args, case llvm::Triple::Fuchsia: TC = std::make_unique<toolchains::Fuchsia>(*this, Target, Args); break; + case llvm::Triple::Managarm: + TC = std::make_unique<toolchains::Managarm>(*this, Target, Args); + break; case llvm::Triple::Solaris: TC = std::make_unique<toolchains::Solaris>(*this, Target, Args); break; diff --git a/clang/lib/Driver/ToolChains/Gnu.cpp b/clang/lib/Driver/ToolChains/Gnu.cpp index 388eb48277ba7..d5bc4b7a831e1 100644 --- a/clang/lib/Driver/ToolChains/Gnu.cpp +++ b/clang/lib/Driver/ToolChains/Gnu.cpp @@ -228,6 +228,8 @@ static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) { return "elf_iamcu"; return "elf_i386"; case llvm::Triple::aarch64: + if (T.isOSManagarm()) + return "aarch64managarm"; return "aarch64linux"; case llvm::Triple::aarch64_be: return "aarch64linuxb"; diff --git a/clang/lib/Driver/ToolChains/Managarm.cpp b/clang/lib/Driver/ToolChains/Managarm.cpp new file mode 100644 index 0000000000000..7bd56e6c6ac32 --- /dev/null +++ b/clang/lib/Driver/ToolChains/Managarm.cpp @@ -0,0 +1,221 @@ +//===----------------------------------------------------------------------===// +// +// 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 "Managarm.h" +#include "Arch/ARM.h" +#include "Arch/RISCV.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +using tools::addPathIfExists; + +std::string Managarm::getMultiarchTriple(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef SysRoot) const { + switch (TargetTriple.getArch()) { + default: + return TargetTriple.str(); + case llvm::Triple::x86_64: + return "x86_64-managarm-" + TargetTriple.getEnvironmentName().str(); + case llvm::Triple::aarch64: + return "aarch64-managarm-" + TargetTriple.getEnvironmentName().str(); + case llvm::Triple::riscv64: + return "riscv64-managarm-" + TargetTriple.getEnvironmentName().str(); + } +} + +static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args) { + // It happens that only x86, PPC and SPARC use the 'lib32' variant of + // oslibdir, and using that variant while targeting other architectures causes + // problems because the libraries are laid out in shared system roots that + // can't cope with a 'lib32' library search path being considered. So we only + // enable them when we know we may need it. + // + // FIXME: This is a bit of a hack. We should really unify this code for + // reasoning about oslibdir spellings with the lib dir spellings in the + // GCCInstallationDetector, but that is a more significant refactoring. + if (Triple.getArch() == llvm::Triple::x86 || Triple.isPPC32() || + Triple.getArch() == llvm::Triple::sparc) + return "lib32"; + + if (Triple.getArch() == llvm::Triple::x86_64 && Triple.isX32()) + return "libx32"; + + if (Triple.getArch() == llvm::Triple::riscv32) + return "lib32"; + + return Triple.isArch32Bit() ? "lib" : "lib64"; +} + +Managarm::Managarm(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + GCCInstallation.init(Triple, Args); + Multilibs = GCCInstallation.getMultilibs(); + SelectedMultilibs.assign({GCCInstallation.getMultilib()}); + std::string SysRoot = computeSysRoot(); + + ToolChain::path_list &PPaths = getProgramPaths(); + + Generic_GCC::PushPPaths(PPaths); + +#ifdef ENABLE_LINKER_BUILD_ID + ExtraOpts.push_back("--build-id"); +#endif + + // The selection of paths to try here is designed to match the patterns which + // the GCC driver itself uses, as this is part of the GCC-compatible driver. + // This was determined by running GCC in a fake filesystem, creating all + // possible permutations of these directories, and seeing which ones it added + // to the link paths. + path_list &Paths = getFilePaths(); + + const std::string OSLibDir = std::string(getOSLibDir(Triple, Args)); + const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot); + + Generic_GCC::AddMultilibPaths(D, SysRoot, OSLibDir, MultiarchTriple, Paths); + + addPathIfExists(D, concat(SysRoot, "/lib", MultiarchTriple), Paths); + addPathIfExists(D, concat(SysRoot, "/lib/..", OSLibDir), Paths); + addPathIfExists(D, concat(SysRoot, "/usr/lib", MultiarchTriple), Paths); + addPathIfExists(D, concat(SysRoot, "/usr", OSLibDir), Paths); + + Generic_GCC::AddMultiarchPaths(D, SysRoot, OSLibDir, Paths); + + addPathIfExists(D, concat(SysRoot, "/lib"), Paths); + addPathIfExists(D, concat(SysRoot, "/usr/lib"), Paths); +} + +bool Managarm::HasNativeLLVMSupport() const { return true; } + +Tool *Managarm::buildLinker() const { + return new tools::gnutools::Linker(*this); +} + +Tool *Managarm::buildAssembler() const { + return new tools::gnutools::Assembler(*this); +} + +std::string Managarm::computeSysRoot() const { + if (!getDriver().SysRoot.empty()) + return getDriver().SysRoot; + return std::string(); +} + +std::string Managarm::getDynamicLinker(const ArgList &Args) const { + switch (getTriple().getArch()) { + case llvm::Triple::aarch64: + return "/lib/aarch64-managarm/ld.so"; + case llvm::Triple::riscv64: { + StringRef ABIName = tools::riscv::getRISCVABI(Args, getTriple()); + return ("/lib/riscv64-managarm/ld-riscv64-" + ABIName + ".so").str(); + } + case llvm::Triple::x86_64: + return "/lib/x86_64-managarm/ld.so"; + default: + llvm_unreachable("unsupported architecture"); + } +} + +void Managarm::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + std::string SysRoot = computeSysRoot(); + + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) + addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include"); + + // Add 'include' in the resource directory, which is similar to + // GCC_INCLUDE_DIR (private headers) in GCC. + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> ResourceDirInclude(D.ResourceDir); + llvm::sys::path::append(ResourceDirInclude, "include"); + addSystemInclude(DriverArgs, CC1Args, ResourceDirInclude); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + // TOOL_INCLUDE_DIR + AddMultilibIncludeArgs(DriverArgs, CC1Args); + + // Check for configure-time C include directories. + StringRef CIncludeDirs(C_INCLUDE_DIRS); + if (CIncludeDirs != "") { + SmallVector<StringRef, 5> dirs; + CIncludeDirs.split(dirs, ":"); + for (StringRef dir : dirs) { + StringRef Prefix = + llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) : ""; + addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); + } + return; + } + + // On systems using multiarch, add /usr/include/$triple before + // /usr/include. + std::string MultiarchIncludeDir = getMultiarchTriple(D, getTriple(), SysRoot); + if (!MultiarchIncludeDir.empty()) + addExternCSystemInclude( + DriverArgs, CC1Args, + concat(SysRoot, "/usr/include", MultiarchIncludeDir)); + + // Add an include of '/include' directly. This isn't provided by default by + // system GCCs, but is often used with cross-compiling GCCs, and harmless to + // add even when Clang is acting as-if it were a system compiler. + addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/include")); + + addExternCSystemInclude(DriverArgs, CC1Args, concat(SysRoot, "/usr/include")); +} + +void Managarm::addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + // We need a detected GCC installation on Managarm to provide libstdc++'s + // headers. + if (!GCCInstallation.isValid()) + return; + + StringRef TripleStr = GCCInstallation.getTriple().str(); + + // Try generic GCC detection. + Generic_GCC::addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args, TripleStr); +} + +SanitizerMask Managarm::getSupportedSanitizers() const { + const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; + const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::PointerCompare; + Res |= SanitizerKind::PointerSubtract; + Res |= SanitizerKind::KernelAddress; + Res |= SanitizerKind::Vptr; + if (IsX86_64) + Res |= SanitizerKind::KernelMemory; + if (IsX86 || IsX86_64) + Res |= SanitizerKind::Function; + return Res; +} + +void Managarm::addExtraOpts(llvm::opt::ArgStringList &CmdArgs) const { + for (const auto &Opt : ExtraOpts) + CmdArgs.push_back(Opt.c_str()); +} diff --git a/clang/lib/Driver/ToolChains/Managarm.h b/clang/lib/Driver/ToolChains/Managarm.h new file mode 100644 index 0000000000000..2082e2c615f28 --- /dev/null +++ b/clang/lib/Driver/ToolChains/Managarm.h @@ -0,0 +1,55 @@ +//===--- Managarm.h - Managarm ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H + +#include "Gnu.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Managarm : public Generic_ELF { +public: + Managarm(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool HasNativeLLVMSupport() const override; + + std::string getMultiarchTriple(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef SysRoot) const override; + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void + addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + SanitizerMask getSupportedSanitizers() const override; + std::string computeSysRoot() const override; + + std::string getDynamicLinker(const llvm::opt::ArgList &Args) const override; + + void addExtraOpts(llvm::opt::ArgStringList &CmdArgs) const override; + + std::vector<std::string> ExtraOpts; + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MANAGARM_H diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/lib/aarch64-managarm-mlibc/.keep b/clang/test/Driver/Inputs/basic_managarm_tree/lib/aarch64-managarm-mlibc/.keep new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/lib/riscv64-managarm-mlibc/.keep b/clang/test/Driver/Inputs/basic_managarm_tree/lib/riscv64-managarm-mlibc/.keep new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git 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a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/aarch64-managarm-mlibc/.keep b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/aarch64-managarm-mlibc/.keep new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbegin.o b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbegin.o new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginS.o b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginS.o new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginT.o b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/aarch64-managarm-mlibc/10/crtbeginT.o new file mode 100644 index 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b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbegin.o new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginS.o b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginS.o new file mode 100644 index 0000000000000..e69de29bb2d1d diff --git a/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginT.o b/clang/test/Driver/Inputs/basic_managarm_tree/usr/lib/gcc/x86_64-managarm-mlibc/10/crtbeginT.o new file mode 100... [truncated] `````````` </details> https://github.com/llvm/llvm-project/pull/139271 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
