1 //===--- OpenBSD.cpp - OpenBSD ToolChain Implementations --------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 #include "Arch/Mips.h"
12 #include "Arch/Sparc.h"
13 #include "CommonArgs.h"
14 #include "clang/Driver/Compilation.h"
15 #include "clang/Driver/Options.h"
16 #include "llvm/Option/ArgList.h"
18 using namespace clang::driver;
19 using namespace clang::driver::tools;
20 using namespace clang::driver::toolchains;
21 using namespace clang;
22 using namespace llvm::opt;
24 void openbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
25 const InputInfo &Output,
26 const InputInfoList &Inputs,
28 const char *LinkingOutput) const {
29 claimNoWarnArgs(Args);
30 ArgStringList CmdArgs;
32 switch (getToolChain().getArch()) {
33 case llvm::Triple::x86:
34 // When building 32-bit code on OpenBSD/amd64, we have to explicitly
35 // instruct as in the base system to assemble 32-bit code.
36 CmdArgs.push_back("--32");
39 case llvm::Triple::ppc:
40 CmdArgs.push_back("-mppc");
41 CmdArgs.push_back("-many");
44 case llvm::Triple::sparc:
45 case llvm::Triple::sparcel: {
46 CmdArgs.push_back("-32");
47 std::string CPU = getCPUName(Args, getToolChain().getTriple());
48 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
49 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
53 case llvm::Triple::sparcv9: {
54 CmdArgs.push_back("-64");
55 std::string CPU = getCPUName(Args, getToolChain().getTriple());
56 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
57 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
61 case llvm::Triple::mips64:
62 case llvm::Triple::mips64el: {
65 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
67 CmdArgs.push_back("-mabi");
68 CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data());
70 if (getToolChain().getArch() == llvm::Triple::mips64)
71 CmdArgs.push_back("-EB");
73 CmdArgs.push_back("-EL");
75 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
83 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
85 CmdArgs.push_back("-o");
86 CmdArgs.push_back(Output.getFilename());
88 for (const auto &II : Inputs)
89 CmdArgs.push_back(II.getFilename());
91 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
92 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
95 void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA,
96 const InputInfo &Output,
97 const InputInfoList &Inputs,
99 const char *LinkingOutput) const {
100 const Driver &D = getToolChain().getDriver();
101 ArgStringList CmdArgs;
103 // Silence warning for "clang -g foo.o -o foo"
104 Args.ClaimAllArgs(options::OPT_g_Group);
105 // and "clang -emit-llvm foo.o -o foo"
106 Args.ClaimAllArgs(options::OPT_emit_llvm);
107 // and for "clang -w foo.o -o foo". Other warning options are already
108 // handled somewhere else.
109 Args.ClaimAllArgs(options::OPT_w);
111 if (getToolChain().getArch() == llvm::Triple::mips64)
112 CmdArgs.push_back("-EB");
113 else if (getToolChain().getArch() == llvm::Triple::mips64el)
114 CmdArgs.push_back("-EL");
116 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
117 CmdArgs.push_back("-e");
118 CmdArgs.push_back("__start");
121 CmdArgs.push_back("--eh-frame-hdr");
122 if (Args.hasArg(options::OPT_static)) {
123 CmdArgs.push_back("-Bstatic");
125 if (Args.hasArg(options::OPT_rdynamic))
126 CmdArgs.push_back("-export-dynamic");
127 CmdArgs.push_back("-Bdynamic");
128 if (Args.hasArg(options::OPT_shared)) {
129 CmdArgs.push_back("-shared");
131 CmdArgs.push_back("-dynamic-linker");
132 CmdArgs.push_back("/usr/libexec/ld.so");
136 if (Args.hasArg(options::OPT_pie))
137 CmdArgs.push_back("-pie");
138 if (Args.hasArg(options::OPT_nopie))
139 CmdArgs.push_back("-nopie");
141 if (Output.isFilename()) {
142 CmdArgs.push_back("-o");
143 CmdArgs.push_back(Output.getFilename());
145 assert(Output.isNothing() && "Invalid output.");
148 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
149 if (!Args.hasArg(options::OPT_shared)) {
150 if (Args.hasArg(options::OPT_pg))
152 Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o")));
153 else if (Args.hasArg(options::OPT_static) &&
154 !Args.hasArg(options::OPT_nopie))
156 Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o")));
159 Args.MakeArgString(getToolChain().GetFilePath("crt0.o")));
161 Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
164 Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o")));
168 std::string Triple = getToolChain().getTripleString();
169 if (Triple.substr(0, 6) == "x86_64")
170 Triple.replace(0, 6, "amd64");
172 Args.MakeArgString("-L/usr/lib/gcc-lib/" + Triple + "/4.2.1"));
174 Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
175 options::OPT_e, options::OPT_s, options::OPT_t,
176 options::OPT_Z_Flag, options::OPT_r});
178 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
180 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
182 if (getToolChain().ShouldLinkCXXStdlib(Args))
183 getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
184 if (Args.hasArg(options::OPT_pg))
185 CmdArgs.push_back("-lm_p");
187 CmdArgs.push_back("-lm");
190 // FIXME: For some reason GCC passes -lgcc before adding
191 // the default system libraries. Just mimic this for now.
192 CmdArgs.push_back("-lgcc");
194 if (Args.hasArg(options::OPT_pthread)) {
195 if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg))
196 CmdArgs.push_back("-lpthread_p");
198 CmdArgs.push_back("-lpthread");
201 if (!Args.hasArg(options::OPT_shared)) {
202 if (Args.hasArg(options::OPT_pg))
203 CmdArgs.push_back("-lc_p");
205 CmdArgs.push_back("-lc");
208 CmdArgs.push_back("-lgcc");
211 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
212 if (!Args.hasArg(options::OPT_shared))
214 Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
217 Args.MakeArgString(getToolChain().GetFilePath("crtendS.o")));
220 const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
221 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
224 /// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly.
226 OpenBSD::OpenBSD(const Driver &D, const llvm::Triple &Triple,
228 : Generic_ELF(D, Triple, Args) {
229 getFilePaths().push_back(getDriver().Dir + "/../lib");
230 getFilePaths().push_back("/usr/lib");
233 Tool *OpenBSD::buildAssembler() const {
234 return new tools::openbsd::Assembler(*this);
237 Tool *OpenBSD::buildLinker() const { return new tools::openbsd::Linker(*this); }