Ananas.cpp revision 1.1.1.2 
1//===--- Ananas.cpp - Ananas 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 "Ananas.h"
10#include "InputInfo.h"
11#include "CommonArgs.h"
12#include "clang/Driver/Compilation.h"
13#include "clang/Driver/Driver.h"
14#include "clang/Driver/Options.h"
15#include "llvm/ADT/SmallString.h"
16#include "llvm/Option/ArgList.h"
17#include "llvm/Support/Path.h"
18
19using namespace clang::driver;
20using namespace clang::driver::tools;
21using namespace clang::driver::toolchains;
22using namespace clang;
23using namespace llvm::opt;
24
25void ananas::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  Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
34
35  CmdArgs.push_back("-o");
36  CmdArgs.push_back(Output.getFilename());
37
38  for (const auto &II : Inputs)
39    CmdArgs.push_back(II.getFilename());
40
41  const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
42  C.addCommand(std::make_unique<Command>(
43      JA, *this, ResponseFileSupport::AtFileCurCP(), Exec, CmdArgs, Inputs));
44}
45
46void ananas::Linker::ConstructJob(Compilation &C, const JobAction &JA,
47                                  const InputInfo &Output,
48                                  const InputInfoList &Inputs,
49                                  const ArgList &Args,
50                                  const char *LinkingOutput) const {
51  const ToolChain &ToolChain = getToolChain();
52  const Driver &D = ToolChain.getDriver();
53  ArgStringList CmdArgs;
54
55  // Silence warning for "clang -g foo.o -o foo"
56  Args.ClaimAllArgs(options::OPT_g_Group);
57  // and "clang -emit-llvm foo.o -o foo"
58  Args.ClaimAllArgs(options::OPT_emit_llvm);
59  // and for "clang -w foo.o -o foo". Other warning options are already
60  // handled somewhere else.
61  Args.ClaimAllArgs(options::OPT_w);
62
63  if (!D.SysRoot.empty())
64    CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
65
66  if (Args.hasArg(options::OPT_static)) {
67    CmdArgs.push_back("-Bstatic");
68  } else {
69    if (Args.hasArg(options::OPT_rdynamic))
70      CmdArgs.push_back("-export-dynamic");
71    if (Args.hasArg(options::OPT_shared)) {
72      CmdArgs.push_back("-Bshareable");
73    } else {
74      Args.AddAllArgs(CmdArgs, options::OPT_pie);
75      CmdArgs.push_back("-dynamic-linker");
76      CmdArgs.push_back("/lib/ld-ananas.so");
77    }
78  }
79
80  if (Output.isFilename()) {
81    CmdArgs.push_back("-o");
82    CmdArgs.push_back(Output.getFilename());
83  } else {
84    assert(Output.isNothing() && "Invalid output.");
85  }
86
87  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
88    if (!Args.hasArg(options::OPT_shared)) {
89      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
90    }
91    CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
92    if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) {
93      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbeginS.o")));
94    } else {
95      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o")));
96    }
97  }
98
99  Args.AddAllArgs(CmdArgs, options::OPT_L);
100  ToolChain.AddFilePathLibArgs(Args, CmdArgs);
101  Args.AddAllArgs(CmdArgs,
102                  {options::OPT_T_Group, options::OPT_e, options::OPT_s,
103                   options::OPT_t, options::OPT_Z_Flag, options::OPT_r});
104
105  if (D.isUsingLTO()) {
106    assert(!Inputs.empty() && "Must have at least one input.");
107    addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs[0],
108                  D.getLTOMode() == LTOK_Thin);
109  }
110
111  AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
112
113  if (ToolChain.ShouldLinkCXXStdlib(Args))
114    ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
115  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
116    CmdArgs.push_back("-lc");
117
118  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
119    if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
120      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
121    else
122      CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
123    CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
124  }
125
126  const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
127  C.addCommand(std::make_unique<Command>(
128      JA, *this, ResponseFileSupport::AtFileCurCP(), Exec, CmdArgs, Inputs));
129}
130
131// Ananas - Ananas tool chain which can call as(1) and ld(1) directly.
132
133Ananas::Ananas(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
134    : Generic_ELF(D, Triple, Args) {
135  getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
136}
137
138Tool *Ananas::buildAssembler() const {
139  return new tools::ananas::Assembler(*this);
140}
141
142Tool *Ananas::buildLinker() const { return new tools::ananas::Linker(*this); }
143