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 "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/ADT/SmallString.h"
16 #include "llvm/Option/ArgList.h"
17 #include "llvm/Support/Path.h"
18
19 using namespace clang::driver;
20 using namespace clang::driver::tools;
21 using namespace clang::driver::toolchains;
22 using namespace clang;
23 using namespace llvm::opt;
24
ConstructJob(Compilation & C,const JobAction & JA,const InputInfo & Output,const InputInfoList & Inputs,const ArgList & Args,const char * LinkingOutput) const25 void 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>(JA, *this,
43 ResponseFileSupport::AtFileCurCP(),
44 Exec, CmdArgs, Inputs, Output));
45 }
46
ConstructJob(Compilation & C,const JobAction & JA,const InputInfo & Output,const InputInfoList & Inputs,const ArgList & Args,const char * LinkingOutput) const47 void ananas::Linker::ConstructJob(Compilation &C, const JobAction &JA,
48 const InputInfo &Output,
49 const InputInfoList &Inputs,
50 const ArgList &Args,
51 const char *LinkingOutput) const {
52 const ToolChain &ToolChain = getToolChain();
53 const Driver &D = ToolChain.getDriver();
54 ArgStringList CmdArgs;
55
56 // Silence warning for "clang -g foo.o -o foo"
57 Args.ClaimAllArgs(options::OPT_g_Group);
58 // and "clang -emit-llvm foo.o -o foo"
59 Args.ClaimAllArgs(options::OPT_emit_llvm);
60 // and for "clang -w foo.o -o foo". Other warning options are already
61 // handled somewhere else.
62 Args.ClaimAllArgs(options::OPT_w);
63
64 if (!D.SysRoot.empty())
65 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
66
67 if (Args.hasArg(options::OPT_static)) {
68 CmdArgs.push_back("-Bstatic");
69 } else {
70 if (Args.hasArg(options::OPT_rdynamic))
71 CmdArgs.push_back("-export-dynamic");
72 if (Args.hasArg(options::OPT_shared)) {
73 CmdArgs.push_back("-Bshareable");
74 } else if (!Args.hasArg(options::OPT_r)) {
75 Args.AddAllArgs(CmdArgs, options::OPT_pie);
76 CmdArgs.push_back("-dynamic-linker");
77 CmdArgs.push_back("/lib/ld-ananas.so");
78 }
79 }
80
81 if (Output.isFilename()) {
82 CmdArgs.push_back("-o");
83 CmdArgs.push_back(Output.getFilename());
84 } else {
85 assert(Output.isNothing() && "Invalid output.");
86 }
87
88 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
89 options::OPT_r)) {
90 if (!Args.hasArg(options::OPT_shared)) {
91 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
92 }
93 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
94 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) {
95 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbeginS.o")));
96 } else {
97 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o")));
98 }
99 }
100
101 Args.AddAllArgs(CmdArgs, options::OPT_L);
102 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
103 Args.AddAllArgs(CmdArgs,
104 {options::OPT_T_Group, options::OPT_e, options::OPT_s,
105 options::OPT_t, options::OPT_Z_Flag, options::OPT_r});
106
107 if (D.isUsingLTO()) {
108 assert(!Inputs.empty() && "Must have at least one input.");
109 addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs[0],
110 D.getLTOMode() == LTOK_Thin);
111 }
112
113 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
114
115 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
116 options::OPT_r)) {
117 if (ToolChain.ShouldLinkCXXStdlib(Args))
118 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
119 CmdArgs.push_back("-lc");
120 }
121
122 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
123 options::OPT_r)) {
124 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
125 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
126 else
127 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
128 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
129 }
130
131 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
132 C.addCommand(std::make_unique<Command>(JA, *this,
133 ResponseFileSupport::AtFileCurCP(),
134 Exec, CmdArgs, Inputs, Output));
135 }
136
137 // Ananas - Ananas tool chain which can call as(1) and ld(1) directly.
138
Ananas(const Driver & D,const llvm::Triple & Triple,const ArgList & Args)139 Ananas::Ananas(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
140 : Generic_ELF(D, Triple, Args) {
141 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
142 }
143
buildAssembler() const144 Tool *Ananas::buildAssembler() const {
145 return new tools::ananas::Assembler(*this);
146 }
147
buildLinker() const148 Tool *Ananas::buildLinker() const { return new tools::ananas::Linker(*this); }
149