clang/lib/Driver/ToolChains/XCore.cpp

   1 //===--- XCore.cpp - XCore ToolChain Implementations ------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "XCore.h"
  10 #include "CommonArgs.h"
  11 #include "clang/Driver/Compilation.h"
  12 #include "clang/Driver/Driver.h"
  13 #include "clang/Driver/Options.h"
  14 #include "llvm/Option/ArgList.h"
  15 #include <cstdlib> // ::getenv
  16
  17 using namespace clang::driver;
  18 using namespace clang::driver::toolchains;
  19 using namespace clang;
  20 using namespace llvm::opt;
  21
  22 /// XCore Tools
  23 // We pass assemble and link construction to the xcc tool.
  24
  25 void tools::XCore::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
  26                                            const InputInfo &Output,
  27                                            const InputInfoList &Inputs,
  28                                            const ArgList &Args,
  29                                            const char *LinkingOutput) const {
  30   claimNoWarnArgs(Args);
  31   ArgStringList CmdArgs;
  32
  33   CmdArgs.push_back("-o");
  34   CmdArgs.push_back(Output.getFilename());
  35
  36   CmdArgs.push_back("-c");
  37
  38   if (Args.hasArg(options::OPT_v))
  39     CmdArgs.push_back("-v");
  40
  41   if (Arg *A = Args.getLastArg(options::OPT_g_Group))
  42     if (!A->getOption().matches(options::OPT_g0))
  43       CmdArgs.push_back("-g");
  44
  45   if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm,
  46                    false))
  47     CmdArgs.push_back("-fverbose-asm");
  48
  49   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
  50
  51   for (const auto &II : Inputs)
  52     CmdArgs.push_back(II.getFilename());
  53
  54   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
  55   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
  56                                          Exec, CmdArgs, Inputs, Output));
  57 }
  58
  59 void tools::XCore::Linker::ConstructJob(Compilation &C, const JobAction &JA,
  60                                         const InputInfo &Output,
  61                                         const InputInfoList &Inputs,
  62                                         const ArgList &Args,
  63                                         const char *LinkingOutput) const {
  64   ArgStringList CmdArgs;
  65
  66   assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
  67   if (Output.isFilename()) {
  68     CmdArgs.push_back("-o");
  69     CmdArgs.push_back(Output.getFilename());
  70   }
  71
  72   if (Args.hasArg(options::OPT_v))
  73     CmdArgs.push_back("-v");
  74
  75   // Pass -fexceptions through to the linker if it was present.
  76   if (Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
  77                    false))
  78     CmdArgs.push_back("-fexceptions");
  79
  80   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
  81
  82   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
  83   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
  84                                          Exec, CmdArgs, Inputs, Output));
  85 }
  86
  87 /// XCore tool chain
  88 XCoreToolChain::XCoreToolChain(const Driver &D, const llvm::Triple &Triple,
  89                                const ArgList &Args)
  90     : ToolChain(D, Triple, Args) {
  91   // ProgramPaths are found via 'PATH' environment variable.
  92 }
  93
  94 Tool *XCoreToolChain::buildAssembler() const {
  95   return new tools::XCore::Assembler(*this);
  96 }
  97
  98 Tool *XCoreToolChain::buildLinker() const {
  99   return new tools::XCore::Linker(*this);
 100 }
 101
 102 bool XCoreToolChain::isPICDefault() const { return false; }
 103
 104 bool XCoreToolChain::isPIEDefault(const llvm::opt::ArgList &Args) const {
 105   return false;
 106 }
 107
 108 bool XCoreToolChain::isPICDefaultForced() const { return false; }
 109
 110 bool XCoreToolChain::SupportsProfiling() const { return false; }
 111
 112 bool XCoreToolChain::hasBlocksRuntime() const { return false; }
 113
 114 void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
 115                                                ArgStringList &CC1Args) const {
 116   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
 117       DriverArgs.hasArg(options::OPT_nostdlibinc))
 118     return;
 119   if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
 120     SmallVector<StringRef, 4> Dirs;
 121     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
 122     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
 123     ArrayRef<StringRef> DirVec(Dirs);
 124     addSystemIncludes(DriverArgs, CC1Args, DirVec);
 125   }
 126 }
 127
 128 void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs,
 129                                            ArgStringList &CC1Args,
 130                                            Action::OffloadKind) const {
 131   CC1Args.push_back("-nostdsysteminc");
 132   // Set `-fno-use-cxa-atexit` to default.
 133   if (!DriverArgs.hasFlag(options::OPT_fuse_cxa_atexit,
 134                           options::OPT_fno_use_cxa_atexit, false))
 135     CC1Args.push_back("-fno-use-cxa-atexit");
 136 }
 137
 138 void XCoreToolChain::AddClangCXXStdlibIncludeArgs(
 139     const ArgList &DriverArgs, ArgStringList &CC1Args) const {
 140   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
 141       DriverArgs.hasArg(options::OPT_nostdlibinc) ||
 142       DriverArgs.hasArg(options::OPT_nostdincxx))
 143     return;
 144   if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
 145     SmallVector<StringRef, 4> Dirs;
 146     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
 147     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
 148     ArrayRef<StringRef> DirVec(Dirs);
 149     addSystemIncludes(DriverArgs, CC1Args, DirVec);
 150   }
 151 }
 152
 153 void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
 154                                          ArgStringList &CmdArgs) const {
 155   // We don't output any lib args. This is handled by xcc.
 156 }