clang/lib/Driver/ToolChains/Minix.cpp

   1 //===--- Minix.cpp - Minix 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 "Minix.h"
  10 #include "CommonArgs.h"
  11 #include "clang/Driver/Compilation.h"
  12 #include "clang/Driver/Driver.h"
  13 #include "clang/Driver/InputInfo.h"
  14 #include "clang/Driver/Options.h"
  15 #include "llvm/Option/ArgList.h"
  16 #include "llvm/Support/VirtualFileSystem.h"
  17
  18 using namespace clang::driver;
  19 using namespace clang;
  20 using namespace llvm::opt;
  21
  22 void tools::minix::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
  23                                            const InputInfo &Output,
  24                                            const InputInfoList &Inputs,
  25                                            const ArgList &Args,
  26                                            const char *LinkingOutput) const {
  27   claimNoWarnArgs(Args);
  28   ArgStringList CmdArgs;
  29
  30   Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
  31
  32   CmdArgs.push_back("-o");
  33   CmdArgs.push_back(Output.getFilename());
  34
  35   for (const auto &II : Inputs)
  36     CmdArgs.push_back(II.getFilename());
  37
  38   const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
  39   C.addCommand(std::make_unique<Command>(JA, *this,
  40                                          ResponseFileSupport::AtFileCurCP(),
  41                                          Exec, CmdArgs, Inputs, Output));
  42 }
  43
  44 void tools::minix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
  45                                  const InputInfo &Output,
  46                                  const InputInfoList &Inputs,
  47                                  const ArgList &Args,
  48                                  const char *LinkingOutput) const {
  49   const Driver &D = getToolChain().getDriver();
  50   ArgStringList CmdArgs;
  51
  52   if (Output.isFilename()) {
  53     CmdArgs.push_back("-o");
  54     CmdArgs.push_back(Output.getFilename());
  55   } else {
  56     assert(Output.isNothing() && "Invalid output.");
  57   }
  58
  59   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
  60                    options::OPT_r)) {
  61     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
  62     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
  63     CmdArgs.push_back(
  64         Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
  65     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
  66   }
  67
  68   Args.AddAllArgs(CmdArgs,
  69                   {options::OPT_L, options::OPT_T_Group, options::OPT_e});
  70
  71   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
  72
  73   getToolChain().addProfileRTLibs(Args, CmdArgs);
  74
  75   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
  76                    options::OPT_r)) {
  77     if (D.CCCIsCXX()) {
  78       if (getToolChain().ShouldLinkCXXStdlib(Args))
  79         getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
  80       CmdArgs.push_back("-lm");
  81     }
  82   }
  83
  84   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
  85                    options::OPT_r)) {
  86     if (Args.hasArg(options::OPT_pthread))
  87       CmdArgs.push_back("-lpthread");
  88     CmdArgs.push_back("-lc");
  89     CmdArgs.push_back("-lCompilerRT-Generic");
  90     CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib");
  91     CmdArgs.push_back(
  92         Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
  93   }
  94
  95   const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
  96   C.addCommand(std::make_unique<Command>(JA, *this,
  97                                          ResponseFileSupport::AtFileCurCP(),
  98                                          Exec, CmdArgs, Inputs, Output));
  99 }
 100
 101 /// Minix - Minix tool chain which can call as(1) and ld(1) directly.
 102
 103 toolchains::Minix::Minix(const Driver &D, const llvm::Triple &Triple,
 104                          const ArgList &Args)
 105     : Generic_ELF(D, Triple, Args) {
 106   getFilePaths().push_back(getDriver().Dir + "/../lib");
 107   getFilePaths().push_back("/usr/lib");
 108 }
 109
 110 Tool *toolchains::Minix::buildAssembler() const {
 111   return new tools::minix::Assembler(*this);
 112 }
 113
 114 Tool *toolchains::Minix::buildLinker() const {
 115   return new tools::minix::Linker(*this);
 116 }