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   if (Output.isFilename()) {
  67     CmdArgs.push_back("-o");
  68     CmdArgs.push_back(Output.getFilename());
  69   } else {
  70     assert(Output.isNothing() && "Invalid output.");
  71   }
  72
  73   if (Args.hasArg(options::OPT_v))
  74     CmdArgs.push_back("-v");
  75
  76   // Pass -fexceptions through to the linker if it was present.
  77   if (Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions,
  78                    false))
  79     CmdArgs.push_back("-fexceptions");
  80
  81   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
  82
  83   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc"));
  84   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
  85                                          Exec, CmdArgs, Inputs, Output));
  86 }
  87
  88 /// XCore tool chain
  89 XCoreToolChain::XCoreToolChain(const Driver &D, const llvm::Triple &Triple,
  90                                const ArgList &Args)
  91     : ToolChain(D, Triple, Args) {
  92   // ProgramPaths are found via 'PATH' environment variable.
  93 }
  94
  95 Tool *XCoreToolChain::buildAssembler() const {
  96   return new tools::XCore::Assembler(*this);
  97 }
  98
  99 Tool *XCoreToolChain::buildLinker() const {
 100   return new tools::XCore::Linker(*this);
 101 }
 102
 103 bool XCoreToolChain::isPICDefault() const { return false; }
 104
 105 bool XCoreToolChain::isPIEDefault(const llvm::opt::ArgList &Args) const {
 106   return false;
 107 }
 108
 109 bool XCoreToolChain::isPICDefaultForced() const { return false; }
 110
 111 bool XCoreToolChain::SupportsProfiling() const { return false; }
 112
 113 bool XCoreToolChain::hasBlocksRuntime() const { return false; }
 114
 115 void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
 116                                                ArgStringList &CC1Args) const {
 117   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
 118       DriverArgs.hasArg(options::OPT_nostdlibinc))
 119     return;
 120   if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) {
 121     SmallVector<StringRef, 4> Dirs;
 122     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
 123     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
 124     ArrayRef<StringRef> DirVec(Dirs);
 125     addSystemIncludes(DriverArgs, CC1Args, DirVec);
 126   }
 127 }
 128
 129 void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs,
 130                                            ArgStringList &CC1Args,
 131                                            Action::OffloadKind) const {
 132   CC1Args.push_back("-nostdsysteminc");
 133   // Set `-fno-use-cxa-atexit` to default.
 134   if (!DriverArgs.hasFlag(options::OPT_fuse_cxa_atexit,
 135                           options::OPT_fno_use_cxa_atexit, false))
 136     CC1Args.push_back("-fno-use-cxa-atexit");
 137 }
 138
 139 void XCoreToolChain::AddClangCXXStdlibIncludeArgs(
 140     const ArgList &DriverArgs, ArgStringList &CC1Args) const {
 141   if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) ||
 142       DriverArgs.hasArg(options::OPT_nostdlibinc) ||
 143       DriverArgs.hasArg(options::OPT_nostdincxx))
 144     return;
 145   if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) {
 146     SmallVector<StringRef, 4> Dirs;
 147     const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'};
 148     StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr));
 149     ArrayRef<StringRef> DirVec(Dirs);
 150     addSystemIncludes(DriverArgs, CC1Args, DirVec);
 151   }
 152 }
 153
 154 void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
 155                                          ArgStringList &CmdArgs) const {
 156   // We don't output any lib args. This is handled by xcc.
 157 }