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
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 {
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 if (!Args.hasArg(options::OPT_shared)) {
90 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
91 }
92 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
93 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) {
94 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbeginS.o")));
95 } else {
96 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o")));
97 }
98 }
99
100 Args.AddAllArgs(CmdArgs, options::OPT_L);
101 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
102 Args.AddAllArgs(CmdArgs,
103 {options::OPT_T_Group, options::OPT_e, options::OPT_s,
104 options::OPT_t, options::OPT_Z_Flag, options::OPT_r});
105
106 if (D.isUsingLTO()) {
107 assert(!Inputs.empty() && "Must have at least one input.");
108 addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs[0],
109 D.getLTOMode() == LTOK_Thin);
110 }
111
112 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
113
114 if (ToolChain.ShouldLinkCXXStdlib(Args))
115 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
116 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
117 CmdArgs.push_back("-lc");
118
119 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
120 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
121 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
122 else
123 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
124 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
125 }
126
127 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
128 C.addCommand(std::make_unique<Command>(JA, *this,
129 ResponseFileSupport::AtFileCurCP(),
130 Exec, CmdArgs, Inputs, Output));
131 }
132
133 // Ananas - Ananas tool chain which can call as(1) and ld(1) directly.
134
Ananas(const Driver & D,const llvm::Triple & Triple,const ArgList & Args)135 Ananas::Ananas(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
136 : Generic_ELF(D, Triple, Args) {
137 getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
138 }
139
buildAssembler() const140 Tool *Ananas::buildAssembler() const {
141 return new tools::ananas::Assembler(*this);
142 }
143
buildLinker() const144 Tool *Ananas::buildLinker() const { return new tools::ananas::Linker(*this); }
145