xref: /openbsd-src/gnu/llvm/clang/lib/Driver/ToolChains/Minix.cpp (revision d0fc3bb68efd6c434b4053cd7adb29023cbec341)
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>(
40       JA, *this, ResponseFileSupport::AtFileCurCP(), Exec, CmdArgs, Inputs));
41 }
42 
43 void tools::minix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
44                                  const InputInfo &Output,
45                                  const InputInfoList &Inputs,
46                                  const ArgList &Args,
47                                  const char *LinkingOutput) const {
48   const Driver &D = getToolChain().getDriver();
49   ArgStringList CmdArgs;
50 
51   if (Output.isFilename()) {
52     CmdArgs.push_back("-o");
53     CmdArgs.push_back(Output.getFilename());
54   } else {
55     assert(Output.isNothing() && "Invalid output.");
56   }
57 
58   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
59     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
60     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
61     CmdArgs.push_back(
62         Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
63     CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
64   }
65 
66   Args.AddAllArgs(CmdArgs,
67                   {options::OPT_L, options::OPT_T_Group, options::OPT_e});
68 
69   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
70 
71   getToolChain().addProfileRTLibs(Args, CmdArgs);
72 
73   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
74     if (D.CCCIsCXX()) {
75       if (getToolChain().ShouldLinkCXXStdlib(Args))
76         getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
77       CmdArgs.push_back("-lm");
78     }
79   }
80 
81   if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
82     if (Args.hasArg(options::OPT_pthread))
83       CmdArgs.push_back("-lpthread");
84     CmdArgs.push_back("-lc");
85     CmdArgs.push_back("-lCompilerRT-Generic");
86     CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib");
87     CmdArgs.push_back(
88         Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
89   }
90 
91   const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
92   C.addCommand(std::make_unique<Command>(
93       JA, *this, ResponseFileSupport::AtFileCurCP(), Exec, CmdArgs, Inputs));
94 }
95 
96 /// Minix - Minix tool chain which can call as(1) and ld(1) directly.
97 
98 toolchains::Minix::Minix(const Driver &D, const llvm::Triple &Triple,
99                          const ArgList &Args)
100     : Generic_ELF(D, Triple, Args) {
101   getFilePaths().push_back(getDriver().Dir + "/../lib");
102   getFilePaths().push_back("/usr/lib");
103 }
104 
105 Tool *toolchains::Minix::buildAssembler() const {
106   return new tools::minix::Assembler(*this);
107 }
108 
109 Tool *toolchains::Minix::buildLinker() const {
110   return new tools::minix::Linker(*this);
111 }
112