contrib/llvm-project/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 "InputInfo.h"
  12 #include "clang/Driver/Compilation.h"
  13 #include "clang/Driver/Driver.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, Exec, CmdArgs, Inputs));
  40 }
  41
  42 void tools::minix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
  43                                  const InputInfo &Output,
  44                                  const InputInfoList &Inputs,
  45                                  const ArgList &Args,
  46                                  const char *LinkingOutput) const {
  47   const Driver &D = getToolChain().getDriver();
  48   ArgStringList CmdArgs;
  49
  50   if (Output.isFilename()) {
  51     CmdArgs.push_back("-o");
  52     CmdArgs.push_back(Output.getFilename());
  53   } else {
  54     assert(Output.isNothing() && "Invalid output.");
  55   }
  56
  57   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
  58     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
  59     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
  60     CmdArgs.push_back(
  61         Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
  62     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
  63   }
  64
  65   Args.AddAllArgs(CmdArgs,
  66                   {options::OPT_L, options::OPT_T_Group, options::OPT_e});
  67
  68   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
  69
  70   getToolChain().addProfileRTLibs(Args, CmdArgs);
  71
  72   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
  73     if (D.CCCIsCXX()) {
  74       if (getToolChain().ShouldLinkCXXStdlib(Args))
  75         getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
  76       CmdArgs.push_back("-lm");
  77     }
  78   }
  79
  80   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
  81     if (Args.hasArg(options::OPT_pthread))
  82       CmdArgs.push_back("-lpthread");
  83     CmdArgs.push_back("-lc");
  84     CmdArgs.push_back("-lCompilerRT-Generic");
  85     CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib");
  86     CmdArgs.push_back(
  87         Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
  88   }
  89
  90   const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
  91   C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
  92 }
  93
  94 /// Minix - Minix tool chain which can call as(1) and ld(1) directly.
  95
  96 toolchains::Minix::Minix(const Driver &D, const llvm::Triple &Triple,
  97                          const ArgList &Args)
  98     : Generic_ELF(D, Triple, Args) {
  99   getFilePaths().push_back(getDriver().Dir + "/../lib");
 100   getFilePaths().push_back("/usr/lib");
 101 }
 102
 103 Tool *toolchains::Minix::buildAssembler() const {
 104   return new tools::minix::Assembler(*this);
 105 }
 106
 107 Tool *toolchains::Minix::buildLinker() const {
 108   return new tools::minix::Linker(*this);
 109 }