1 //===--- Myriad.cpp - Myriad 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 "CommonArgs.h"
12 #include "clang/Driver/Compilation.h"
13 #include "clang/Driver/Driver.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/Options.h"
16 #include "llvm/Option/ArgList.h"
18 using namespace clang::driver;
19 using namespace clang::driver::toolchains;
20 using namespace clang;
21 using namespace llvm::opt;
23 using tools::addPathIfExists;
25 void tools::SHAVE::Compiler::ConstructJob(Compilation &C, const JobAction &JA,
26 const InputInfo &Output,
27 const InputInfoList &Inputs,
29 const char *LinkingOutput) const {
30 ArgStringList CmdArgs;
31 assert(Inputs.size() == 1);
32 const InputInfo &II = Inputs[0];
33 assert(II.getType() == types::TY_C || II.getType() == types::TY_CXX ||
34 II.getType() == types::TY_PP_CXX);
36 if (JA.getKind() == Action::PreprocessJobClass) {
38 CmdArgs.push_back("-E");
40 assert(Output.getType() == types::TY_PP_Asm); // Require preprocessed asm.
41 CmdArgs.push_back("-S");
42 CmdArgs.push_back("-fno-exceptions"); // Always do this even if unspecified.
44 CmdArgs.push_back("-DMYRIAD2");
46 // Append all -I, -iquote, -isystem paths, defines/undefines,
47 // 'f' flags, optimize flags, and warning options.
48 // These are spelled the same way in clang and moviCompile.
49 Args.AddAllArgsExcept(
51 {options::OPT_I_Group, options::OPT_clang_i_Group, options::OPT_std_EQ,
52 options::OPT_D, options::OPT_U, options::OPT_f_Group,
53 options::OPT_f_clang_Group, options::OPT_g_Group, options::OPT_M_Group,
54 options::OPT_O_Group, options::OPT_W_Group, options::OPT_mcpu_EQ},
55 {options::OPT_fno_split_dwarf_inlining});
56 Args.hasArg(options::OPT_fno_split_dwarf_inlining); // Claim it if present.
58 // If we're producing a dependency file, and assembly is the final action,
59 // then the name of the target in the dependency file should be the '.o'
60 // file, not the '.s' file produced by this step. For example, instead of
61 // /tmp/mumble.s: mumble.c .../someheader.h
62 // the filename on the lefthand side should be "mumble.o"
63 if (Args.getLastArg(options::OPT_MF) && !Args.getLastArg(options::OPT_MT) &&
64 C.getActions().size() == 1 &&
65 C.getActions()[0]->getKind() == Action::AssembleJobClass) {
66 Arg *A = Args.getLastArg(options::OPT_o);
68 CmdArgs.push_back("-MT");
69 CmdArgs.push_back(Args.MakeArgString(A->getValue()));
73 CmdArgs.push_back(II.getFilename());
74 CmdArgs.push_back("-o");
75 CmdArgs.push_back(Output.getFilename());
78 Args.MakeArgString(getToolChain().GetProgramPath("moviCompile"));
79 C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec),
83 void tools::SHAVE::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
84 const InputInfo &Output,
85 const InputInfoList &Inputs,
87 const char *LinkingOutput) const {
88 ArgStringList CmdArgs;
90 assert(Inputs.size() == 1);
91 const InputInfo &II = Inputs[0];
92 assert(II.getType() == types::TY_PP_Asm); // Require preprocessed asm input.
93 assert(Output.getType() == types::TY_Object);
95 CmdArgs.push_back("-no6thSlotCompression");
96 const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ);
99 Args.MakeArgString("-cv:" + StringRef(CPUArg->getValue())));
100 CmdArgs.push_back("-noSPrefixing");
101 CmdArgs.push_back("-a"); // Mystery option.
102 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
103 for (const Arg *A : Args.filtered(options::OPT_I, options::OPT_isystem)) {
106 Args.MakeArgString(std::string("-i:") + A->getValue(0)));
108 CmdArgs.push_back("-elf"); // Output format.
109 CmdArgs.push_back(II.getFilename());
111 Args.MakeArgString(std::string("-o:") + Output.getFilename()));
114 Args.MakeArgString(getToolChain().GetProgramPath("moviAsm"));
115 C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec),
119 void tools::Myriad::Linker::ConstructJob(Compilation &C, const JobAction &JA,
120 const InputInfo &Output,
121 const InputInfoList &Inputs,
123 const char *LinkingOutput) const {
125 static_cast<const toolchains::MyriadToolChain &>(getToolChain());
126 const llvm::Triple &T = TC.getTriple();
127 ArgStringList CmdArgs;
129 !Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles);
130 bool UseDefaultLibs =
131 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs);
132 // Silence warning if the args contain both -nostdlib and -stdlib=.
133 Args.getLastArg(options::OPT_stdlib_EQ);
135 if (T.getArch() == llvm::Triple::sparc)
136 CmdArgs.push_back("-EB");
137 else // SHAVE assumes little-endian, and sparcel is expressly so.
138 CmdArgs.push_back("-EL");
140 // The remaining logic is mostly like gnutools::Linker::ConstructJob,
141 // but we never pass through a --sysroot option and various other bits.
142 // For example, there are no sanitizers (yet) nor gold linker.
144 // Eat some arguments that may be present but have no effect.
145 Args.ClaimAllArgs(options::OPT_g_Group);
146 Args.ClaimAllArgs(options::OPT_w);
147 Args.ClaimAllArgs(options::OPT_static_libgcc);
149 if (Args.hasArg(options::OPT_s)) // Pass the 'strip' option.
150 CmdArgs.push_back("-s");
152 CmdArgs.push_back("-o");
153 CmdArgs.push_back(Output.getFilename());
156 // If you want startfiles, it means you want the builtin crti and crtbegin,
157 // but not crt0. Myriad link commands provide their own crt0.o as needed.
158 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crti.o")));
159 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o")));
162 Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
163 options::OPT_e, options::OPT_s, options::OPT_t,
164 options::OPT_Z_Flag, options::OPT_r});
166 TC.AddFilePathLibArgs(Args, CmdArgs);
168 bool NeedsSanitizerDeps = addSanitizerRuntimes(TC, Args, CmdArgs);
169 AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
171 if (UseDefaultLibs) {
172 if (NeedsSanitizerDeps)
173 linkSanitizerRuntimeDeps(TC, CmdArgs);
174 if (C.getDriver().CCCIsCXX()) {
175 if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) {
176 CmdArgs.push_back("-lc++");
177 CmdArgs.push_back("-lc++abi");
179 CmdArgs.push_back("-lstdc++");
181 if (T.getOS() == llvm::Triple::RTEMS) {
182 CmdArgs.push_back("--start-group");
183 CmdArgs.push_back("-lc");
184 CmdArgs.push_back("-lgcc"); // circularly dependent on rtems
185 // You must provide your own "-L" option to enable finding these.
186 CmdArgs.push_back("-lrtemscpu");
187 CmdArgs.push_back("-lrtemsbsp");
188 CmdArgs.push_back("--end-group");
190 CmdArgs.push_back("-lc");
191 CmdArgs.push_back("-lgcc");
195 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o")));
196 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtn.o")));
200 Args.MakeArgString(TC.GetProgramPath("sparc-myriad-elf-ld"));
201 C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec),
205 MyriadToolChain::MyriadToolChain(const Driver &D, const llvm::Triple &Triple,
207 : Generic_ELF(D, Triple, Args) {
208 // If a target of 'sparc-myriad-elf' is specified to clang, it wants to use
209 // 'sparc-myriad--elf' (note the unknown OS) as the canonical triple.
210 // This won't work to find gcc. Instead we give the installation detector an
211 // extra triple, which is preferable to further hacks of the logic that at
212 // present is based solely on getArch(). In particular, it would be wrong to
213 // choose the myriad installation when targeting a non-myriad sparc install.
214 switch (Triple.getArch()) {
216 D.Diag(clang::diag::err_target_unsupported_arch)
217 << Triple.getArchName() << "myriad";
218 case llvm::Triple::sparc:
219 case llvm::Triple::sparcel:
220 case llvm::Triple::shave:
221 GCCInstallation.init(Triple, Args, {"sparc-myriad-elf"});
224 if (GCCInstallation.isValid()) {
225 // This directory contains crt{i,n,begin,end}.o as well as libgcc.
226 // These files are tied to a particular version of gcc.
227 SmallString<128> CompilerSupportDir(GCCInstallation.getInstallPath());
228 addPathIfExists(D, CompilerSupportDir, getFilePaths());
230 // libstd++ and libc++ must both be found in this one place.
231 addPathIfExists(D, D.Dir + "/../sparc-myriad-elf/lib", getFilePaths());
234 MyriadToolChain::~MyriadToolChain() {}
236 void MyriadToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
237 ArgStringList &CC1Args) const {
238 if (!DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
239 addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include");
242 std::string MyriadToolChain::findLibCxxIncludePath() const {
243 std::string Path(getDriver().getInstalledDir());
244 return Path + "/../include/c++/v1";
247 void MyriadToolChain::addLibStdCxxIncludePaths(
248 const llvm::opt::ArgList &DriverArgs,
249 llvm::opt::ArgStringList &CC1Args) const {
250 StringRef LibDir = GCCInstallation.getParentLibPath();
251 const GCCVersion &Version = GCCInstallation.getVersion();
252 StringRef TripleStr = GCCInstallation.getTriple().str();
253 const Multilib &Multilib = GCCInstallation.getMultilib();
254 addLibStdCXXIncludePaths(
255 LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text,
256 "", TripleStr, "", "", Multilib.includeSuffix(), DriverArgs, CC1Args);
259 // MyriadToolChain handles several triples:
260 // {shave,sparc{,el}}-myriad-{rtems,unknown}-elf
261 Tool *MyriadToolChain::SelectTool(const JobAction &JA) const {
262 // The inherited method works fine if not targeting the SHAVE.
263 if (!isShaveCompilation(getTriple()))
264 return ToolChain::SelectTool(JA);
265 switch (JA.getKind()) {
266 case Action::PreprocessJobClass:
267 case Action::CompileJobClass:
269 Compiler.reset(new tools::SHAVE::Compiler(*this));
270 return Compiler.get();
271 case Action::AssembleJobClass:
273 Assembler.reset(new tools::SHAVE::Assembler(*this));
274 return Assembler.get();
276 return ToolChain::getTool(JA.getKind());
280 Tool *MyriadToolChain::buildLinker() const {
281 return new tools::Myriad::Linker(*this);
284 SanitizerMask MyriadToolChain::getSupportedSanitizers() const {
285 return SanitizerKind::Address;