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
18using namespace clang::driver;
19using namespace clang;
20using namespace llvm::opt;
21
22void 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
44void 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
103toolchains::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
110Tool *toolchains::Minix::buildAssembler() const {
111  return new tools::minix::Assembler(*this);
112}
113
114Tool *toolchains::Minix::buildLinker() const {
115  return new tools::minix::Linker(*this);
116}
117