1 //===--- Linux.h - Linux ToolChain Implementations --------------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #include "Linux.h"
37 /// Debian-based systems are starting to use a multiarch setup where they use
38 /// a target-triple directory in the library and header search paths.
41 std::string Linux::getMultiarchTriple(const Driver &D,  in getMultiarchTriple()
57   // common linux triples that don't quite match the Clang triple for both  in getMultiarchTriple()
58   // 32-bit and 64-bit targets. Multiarch fixes its install triples to these  in getMultiarchTriple()
63       return "arm-linux-androideabi";  in getMultiarchTriple()
67       return "arm-linux-gnueabihf";  in getMultiarchTriple()
68     return "arm-linux-gnueabi";  in getMultiarchTriple()
74       return "armeb-linux-gnueabihf";  in getMultiarchTriple()
75     return "armeb-linux-gnueabi";  in getMultiarchTriple()
78       return "i686-linux-android";  in getMultiarchTriple()
79     return "i386-linux-gnu";  in getMultiarchTriple()
82       return "x86_64-linux-android";  in getMultiarchTriple()
84       return "x86_64-linux-gnux32";  in getMultiarchTriple()
85     return "x86_64-linux-gnu";  in getMultiarchTriple()
88       return "aarch64-linux-android";  in getMultiarchTriple()
91       return "aarch64-linux-pauthtest";  in getMultiarchTriple()
92     return "aarch64-linux-gnu";  in getMultiarchTriple()
94     return "aarch64_be-linux-gnu";  in getMultiarchTriple()
126     return (Twine("loongarch64-linux-") + Libc + FPFlavor).str();  in getMultiarchTriple()
130     return "m68k-linux-gnu";  in getMultiarchTriple()
133     return IsMipsR6 ? "mipsisa32r6-linux-gnu" : "mips-linux-gnu";  in getMultiarchTriple()
135     return IsMipsR6 ? "mipsisa32r6el-linux-gnu" : "mipsel-linux-gnu";  in getMultiarchTriple()
138                      "-linux-" + (IsMipsN32Abi ? "gnuabin32" : "gnuabi64");  in getMultiarchTriple()
141     if (D.getVFS().exists(concat(SysRoot, "/lib/mips64-linux-gnu")))  in getMultiarchTriple()
142       return "mips64-linux-gnu";  in getMultiarchTriple()
147                      "-linux-" + (IsMipsN32Abi ? "gnuabin32" : "gnuabi64");  in getMultiarchTriple()
150     if (D.getVFS().exists(concat(SysRoot, "/lib/mips64el-linux-gnu")))  in getMultiarchTriple()
151       return "mips64el-linux-gnu";  in getMultiarchTriple()
155     if (D.getVFS().exists(concat(SysRoot, "/lib/powerpc-linux-gnuspe")))  in getMultiarchTriple()
156       return "powerpc-linux-gnuspe";  in getMultiarchTriple()
157     return "powerpc-linux-gnu";  in getMultiarchTriple()
159     return "powerpcle-linux-gnu";  in getMultiarchTriple()
161     return "powerpc64-linux-gnu";  in getMultiarchTriple()
163     return "powerpc64le-linux-gnu";  in getMultiarchTriple()
166       return "riscv64-linux-android";  in getMultiarchTriple()
167     return "riscv64-linux-gnu";  in getMultiarchTriple()
169     return "sparc-linux-gnu";  in getMultiarchTriple()
171     return "sparc64-linux-gnu";  in getMultiarchTriple()
173     return "s390x-linux-gnu";  in getMultiarchTriple()
219 Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)  in Linux()  function in Linux
233     ExtraOpts.push_back("-z");  in Linux()
239     ExtraOpts.push_back("-z");  in Linux()
243   // Note, lld from 11 onwards default max-page-size to 65536 for both ARM and  in Linux()
247       // Android ARM uses max-page-size=4096 to reduce VMA usage.  in Linux()
248       ExtraOpts.push_back("-z");  in Linux()
249       ExtraOpts.push_back("max-page-size=4096");  in Linux()
251       // Android AArch64 uses max-page-size=16384 to support 4k/16k page sizes.  in Linux()
253       ExtraOpts.push_back("-z");  in Linux()
254       ExtraOpts.push_back("max-page-size=16384");  in Linux()
267     ExtraOpts.push_back("-X");  in Linux()
279     ExtraOpts.push_back("--sysroot=" + SysRoot);  in Linux()
291       ExtraOpts.push_back("--hash-style=both");  in Linux()
293       ExtraOpts.push_back("--hash-style=gnu");  in Linux()
297   ExtraOpts.push_back("--build-id");  in Linux()
301   // the GCC driver itself uses, as this is part of the GCC-compatible driver.  in Linux()
334   // 64-bit OpenEmbedded sysroots may not have a /usr/lib dir. So they cannot  in Linux()
354 ToolChain::RuntimeLibType Linux::GetDefaultRuntimeLibType() const {  in GetDefaultRuntimeLibType()
360 unsigned Linux::GetDefaultDwarfVersion() const {  in GetDefaultDwarfVersion()
366 ToolChain::CXXStdlibType Linux::GetDefaultCXXStdlibType() const {  in GetDefaultCXXStdlibType()
372 bool Linux::HasNativeLLVMSupport() const { return true; }  in HasNativeLLVMSupport()
374 Tool *Linux::buildLinker() const { return new tools::gnutools::Linker(*this); }  in buildLinker()
376 Tool *Linux::buildStaticLibTool() const {  in buildStaticLibTool()
380 Tool *Linux::buildAssembler() const {  in buildAssembler()
384 std::string Linux::computeSysRoot() const {  in computeSysRoot()
402     //   $GCCToolchainPath/lib/gcc/csky-linux-gnuabiv2/6.3.0  in computeSysRoot()
403     // Path = $GCCToolchainPath/csky-linux-gnuabiv2/libc  in computeSysRoot()
438 std::string Linux::getDynamicLinker(const ArgList &Args) const {  in getDynamicLinker()
448       // allows to run HWASan binaries on non-HWASan system images. This  in getDynamicLinker()
485       ArchName = "powerpc-sf";  in getDynamicLinker()
487     return "/lib/ld-musl-" + ArchName + ".so.1";  in getDynamicLinker()
499     Loader = "ld-linux-aarch64.so.1";  in getDynamicLinker()
503     Loader = "ld-linux-aarch64_be.so.1";  in getDynamicLinker()
515     Loader = HF ? "ld-linux-armhf.so.3" : "ld-linux.so.3";  in getDynamicLinker()
521         ("ld-linux-loongarch-" +  in getDynamicLinker()
529         ("ld-linux-loongarch-" +  in getDynamicLinker()
547       Loader = IsNaN2008 ? "ld-uClibc-mipsn8.so.0" : "ld-uClibc.so.0";  in getDynamicLinker()
551           Triple.isLittleEndian() ? "ld-musl-mipsel.so.1" : "ld-musl-mips.so.1";  in getDynamicLinker()
553       Loader = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1";  in getDynamicLinker()
580     Loader = ("ld-linux-" + ArchName + "-" + ABIName + ".so.1").str();  in getDynamicLinker()
586     Loader = "ld-linux.so.2";  in getDynamicLinker()
590     Loader = "ld-linux.so.2";  in getDynamicLinker()
598     Loader = "ld-linux.so.2";  in getDynamicLinker()
604     Loader = X32 ? "ld-linux-x32.so.2" : "ld-linux-x86-64.so.2";  in getDynamicLinker()
608     return "/opt/nec/ve/lib/ld-linux-ve.so.1";  in getDynamicLinker()
623 void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs,  in AddClangSystemIncludeArgs()
632   // GCC_INCLUDE_DIR (private headers) in GCC. Note: the include directory  in AddClangSystemIncludeArgs()
649   // Check for configure-time C include directories.  in AddClangSystemIncludeArgs()
675   // system GCCs, but is often used with cross-compiling GCCs, and harmless to  in AddClangSystemIncludeArgs()
676   // add even when Clang is acting as-if it were a system compiler.  in AddClangSystemIncludeArgs()
685 void Linux::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,  in addLibStdCxxIncludePaths()
687   // We need a detected GCC installation on Linux to provide libstdc++'s  in addLibStdCxxIncludePaths()
688   // headers in odd Linuxish places.  in addLibStdCxxIncludePaths()
692   // Detect Debian g++-multiarch-incdir.diff.  in addLibStdCxxIncludePaths()
696           ? "i386-linux-gnu"  in addLibStdCxxIncludePaths()
709       // Android standalone toolchain has C++ headers in yet another place.  in addLibStdCxxIncludePaths()
711       // Freescale SDK C++ headers are directly in <sysroot>/usr/include/c++,  in addLibStdCxxIncludePaths()
714       // Cray's gcc installation puts headers under "g++" without a  in addLibStdCxxIncludePaths()
726 void Linux::AddCudaIncludeArgs(const ArgList &DriverArgs,  in AddCudaIncludeArgs()
728   CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);  in AddCudaIncludeArgs()
731 void Linux::AddHIPIncludeArgs(const ArgList &DriverArgs,  in AddHIPIncludeArgs()
733   RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);  in AddHIPIncludeArgs()
736 void Linux::AddHIPRuntimeLibArgs(const ArgList &Args,  in AddHIPRuntimeLibArgs()
739       Args.MakeArgString(StringRef("-L") + RocmInstallation->getLibPath()));  in AddHIPRuntimeLibArgs()
744         {"-rpath", Args.MakeArgString(RocmInstallation->getLibPath())});  in AddHIPRuntimeLibArgs()
746   CmdArgs.push_back("-lamdhip64");  in AddHIPRuntimeLibArgs()
749 void Linux::AddIAMCUIncludeArgs(const ArgList &DriverArgs,  in AddIAMCUIncludeArgs()
752     CC1Args.push_back("-isystem");  in AddIAMCUIncludeArgs()
759 bool Linux::isPIEDefault(const llvm::opt::ArgList &Args) const {  in isPIEDefault()
764 bool Linux::IsAArch64OutlineAtomicsDefault(const ArgList &Args) const {  in IsAArch64OutlineAtomicsDefault()
765   // Outline atomics for AArch64 are supported by compiler-rt  in IsAArch64OutlineAtomicsDefault()
777 bool Linux::IsMathErrnoDefault() const {  in IsMathErrnoDefault()
783 SanitizerMask Linux::getSupportedSanitizers() const {  in getSupportedSanitizers()
838 void Linux::addProfileRTLibs(const llvm::opt::ArgList &Args,  in addProfileRTLibs()
840   // Add linker option -u__llvm_profile_runtime to cause runtime  in addProfileRTLibs()
844         Twine("-u", llvm::getInstrProfRuntimeHookVarName())));  in addProfileRTLibs()
848 void Linux::addExtraOpts(llvm::opt::ArgStringList &CmdArgs) const {  in addExtraOpts()
853 const char *Linux::getDefaultLinker() const {  in getDefaultLinker()