clang  8.0.0svn
Solaris.cpp
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1 //===--- Solaris.cpp - Solaris ToolChain Implementations --------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "Solaris.h"
11 #include "CommonArgs.h"
12 #include "clang/Config/config.h"
14 #include "clang/Driver/Driver.h"
16 #include "clang/Driver/Options.h"
17 #include "llvm/Option/ArgList.h"
18 #include "llvm/Support/FileSystem.h"
19 #include "llvm/Support/Path.h"
20 
21 using namespace clang::driver;
22 using namespace clang::driver::tools;
23 using namespace clang::driver::toolchains;
24 using namespace clang;
25 using namespace llvm::opt;
26 
28  const InputInfo &Output,
29  const InputInfoList &Inputs,
30  const ArgList &Args,
31  const char *LinkingOutput) const {
32  claimNoWarnArgs(Args);
33  ArgStringList CmdArgs;
34 
35  Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
36 
37  CmdArgs.push_back("-o");
38  CmdArgs.push_back(Output.getFilename());
39 
40  for (const auto &II : Inputs)
41  CmdArgs.push_back(II.getFilename());
42 
43  const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
44  C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
45 }
46 
48  const InputInfo &Output,
49  const InputInfoList &Inputs,
50  const ArgList &Args,
51  const char *LinkingOutput) const {
52  ArgStringList CmdArgs;
53 
54  // Demangle C++ names in errors
55  CmdArgs.push_back("-C");
56 
57  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) {
58  CmdArgs.push_back("-e");
59  CmdArgs.push_back("_start");
60  }
61 
62  if (Args.hasArg(options::OPT_static)) {
63  CmdArgs.push_back("-Bstatic");
64  CmdArgs.push_back("-dn");
65  } else {
66  CmdArgs.push_back("-Bdynamic");
67  if (Args.hasArg(options::OPT_shared)) {
68  CmdArgs.push_back("-shared");
69  } else {
70  CmdArgs.push_back("--dynamic-linker");
71  CmdArgs.push_back(
72  Args.MakeArgString(getToolChain().GetFilePath("ld.so.1")));
73  }
74 
75  // libpthread has been folded into libc since Solaris 10, no need to do
76  // anything for pthreads. Claim argument to avoid warning.
77  Args.ClaimAllArgs(options::OPT_pthread);
78  Args.ClaimAllArgs(options::OPT_pthreads);
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(
91  Args.MakeArgString(getToolChain().GetFilePath("crt1.o")));
92 
93  CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o")));
94  CmdArgs.push_back(
95  Args.MakeArgString(getToolChain().GetFilePath("values-Xa.o")));
96  CmdArgs.push_back(
97  Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o")));
98  }
99 
100  // Provide __start___sancov_guards. Solaris ld doesn't automatically create
101  // __start_SECNAME labels.
102  CmdArgs.push_back("--whole-archive");
103  CmdArgs.push_back(
104  getToolChain().getCompilerRTArgString(Args, "sancov_begin", false));
105  CmdArgs.push_back("--no-whole-archive");
106 
107  getToolChain().AddFilePathLibArgs(Args, CmdArgs);
108 
109  Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group,
110  options::OPT_e, options::OPT_r});
111 
112  bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs);
113  AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA);
114 
115  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
116  if (getToolChain().ShouldLinkCXXStdlib(Args))
117  getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs);
118  if (Args.hasArg(options::OPT_fstack_protector) ||
119  Args.hasArg(options::OPT_fstack_protector_strong) ||
120  Args.hasArg(options::OPT_fstack_protector_all)) {
121  // Explicitly link ssp libraries, not folded into Solaris libc.
122  CmdArgs.push_back("-lssp_nonshared");
123  CmdArgs.push_back("-lssp");
124  }
125  CmdArgs.push_back("-lgcc_s");
126  CmdArgs.push_back("-lc");
127  if (!Args.hasArg(options::OPT_shared)) {
128  CmdArgs.push_back("-lgcc");
129  CmdArgs.push_back("-lm");
130  }
131  if (NeedsSanitizerDeps)
132  linkSanitizerRuntimeDeps(getToolChain(), CmdArgs);
133  }
134 
135  // Provide __stop___sancov_guards. Solaris ld doesn't automatically create
136  // __stop_SECNAME labels.
137  CmdArgs.push_back("--whole-archive");
138  CmdArgs.push_back(
139  getToolChain().getCompilerRTArgString(Args, "sancov_end", false));
140  CmdArgs.push_back("--no-whole-archive");
141 
142  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
143  CmdArgs.push_back(
144  Args.MakeArgString(getToolChain().GetFilePath("crtend.o")));
145  }
146  CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o")));
147 
148  getToolChain().addProfileRTLibs(Args, CmdArgs);
149 
150  const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath());
151  C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
152 }
153 
154 static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) {
155  switch (Triple.getArch()) {
156  case llvm::Triple::x86:
157  case llvm::Triple::sparc:
158  break;
159  case llvm::Triple::x86_64:
160  return "/amd64";
161  case llvm::Triple::sparcv9:
162  return "/sparcv9";
163  default:
164  llvm_unreachable("Unsupported architecture");
165  }
166  return "";
167 }
168 
169 /// Solaris - Solaris tool chain which can call as(1) and ld(1) directly.
170 
171 Solaris::Solaris(const Driver &D, const llvm::Triple &Triple,
172  const ArgList &Args)
173  : Generic_ELF(D, Triple, Args) {
174 
175  GCCInstallation.init(Triple, Args);
176 
177  StringRef LibSuffix = getSolarisLibSuffix(Triple);
178  path_list &Paths = getFilePaths();
179  if (GCCInstallation.isValid()) {
180  // On Solaris gcc uses both an architecture-specific path with triple in it
181  // as well as a more generic lib path (+arch suffix).
182  addPathIfExists(D,
185  Paths);
186  addPathIfExists(D, GCCInstallation.getParentLibPath() + LibSuffix, Paths);
187  }
188 
189  // If we are currently running Clang inside of the requested system root,
190  // add its parent library path to those searched.
191  if (StringRef(D.Dir).startswith(D.SysRoot))
192  addPathIfExists(D, D.Dir + "/../lib", Paths);
193 
194  addPathIfExists(D, D.SysRoot + "/usr/lib" + LibSuffix, Paths);
195 }
196 
198  const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
200  // FIXME: Omit X86_64 until 64-bit support is figured out.
201  if (IsX86) {
202  Res |= SanitizerKind::Address;
203  }
204  Res |= SanitizerKind::Vptr;
205  return Res;
206 }
207 
209  return new tools::solaris::Assembler(*this);
210 }
211 
212 Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); }
213 
214 void Solaris::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
215  ArgStringList &CC1Args) const {
216  const Driver &D = getDriver();
217 
218  if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc))
219  return;
220 
221  if (!DriverArgs.hasArg(options::OPT_nostdlibinc))
222  addSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/local/include");
223 
224  if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
226  llvm::sys::path::append(P, "include");
227  addSystemInclude(DriverArgs, CC1Args, P);
228  }
229 
230  if (DriverArgs.hasArg(options::OPT_nostdlibinc))
231  return;
232 
233  // Check for configure-time C include directories.
234  StringRef CIncludeDirs(C_INCLUDE_DIRS);
235  if (CIncludeDirs != "") {
237  CIncludeDirs.split(dirs, ":");
238  for (StringRef dir : dirs) {
239  StringRef Prefix =
240  llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : "";
241  addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir);
242  }
243  return;
244  }
245 
246  // Add include directories specific to the selected multilib set and multilib.
247  if (GCCInstallation.isValid()) {
248  const MultilibSet::IncludeDirsFunc &Callback =
250  if (Callback) {
251  for (const auto &Path : Callback(GCCInstallation.getMultilib()))
253  DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path);
254  }
255  }
256 
257  addExternCSystemInclude(DriverArgs, CC1Args, D.SysRoot + "/usr/include");
258 }
259 
261  const llvm::opt::ArgList &DriverArgs,
262  llvm::opt::ArgStringList &CC1Args) const {
263  // We need a detected GCC installation on Solaris (similar to Linux)
264  // to provide libstdc++'s headers.
265  if (!GCCInstallation.isValid())
266  return;
267 
268  // By default, look for the C++ headers in an include directory adjacent to
269  // the lib directory of the GCC installation.
270  // On Solaris this usually looks like /usr/gcc/X.Y/include/c++/X.Y.Z
271  StringRef LibDir = GCCInstallation.getParentLibPath();
272  StringRef TripleStr = GCCInstallation.getTriple().str();
274  const GCCVersion &Version = GCCInstallation.getVersion();
275 
276  // The primary search for libstdc++ supports multiarch variants.
277  addLibStdCXXIncludePaths(LibDir.str() + "/../include", "/c++/" + Version.Text,
278  TripleStr,
279  /*GCCMultiarchTriple*/ "",
280  /*TargetMultiarchTriple*/ "",
281  Multilib.includeSuffix(), DriverArgs, CC1Args);
282 }
static void addExternCSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory with extern "C" semantics to CC1 arguments...
Definition: ToolChain.cpp:702
SanitizerMask getSupportedSanitizers() const override
Return sanitizers which are available in this toolchain.
Definition: Solaris.cpp:197
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:709
Tool * buildLinker() const override
Definition: Solaris.cpp:212
const IncludeDirsFunc & includeDirsCallback() const
Definition: Multilib.h:175
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition: Gnu.h:220
StringRef P
Tool * buildAssembler() const override
Definition: Solaris.cpp:208
void addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Definition: Solaris.cpp:260
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Solaris.cpp:47
Struct to store and manipulate GCC versions.
Definition: Gnu.h:157
static StringRef getSolarisLibSuffix(const llvm::Triple &Triple)
Definition: Solaris.cpp:154
const char * getFilename() const
Definition: InputInfo.h:84
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:280
void linkSanitizerRuntimeDeps(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
const std::string & includeSuffix() const
Get the include directory suffix.
Definition: Multilib.h:67
std::string Dir
The path the driver executable was in, as invoked from the command line.
Definition: Driver.h:121
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition: Multilib.h:45
bool addSanitizerRuntimes(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:23
path_list & getFilePaths()
Definition: ToolChain.h:216
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:59
const GCCVersion & getVersion() const
Get the detected GCC version string.
Definition: Gnu.h:239
void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add the clang cc1 arguments for system include paths.
Definition: Solaris.cpp:214
void addCommand(std::unique_ptr< Command > C)
Definition: Compilation.h:206
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag...
Definition: Multilib.h:29
const Driver & getDriver() const
Definition: ToolChain.h:181
static void addSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory to CC1 arguments.
Definition: ToolChain.cpp:687
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition: Gnu.h:226
Dataflow Directional Tag Classes.
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
std::string SysRoot
sysroot, if present
Definition: Driver.h:149
Tool - Information on a specific compilation tool.
Definition: Tool.h:34
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
std::function< std::vector< std::string >(const Multilib &M)> IncludeDirsFunc
Definition: Multilib.h:116
uint64_t SanitizerMask
Definition: Sanitizers.h:26
std::string Text
The unparsed text of the version.
Definition: Gnu.h:159
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:46
const llvm::Triple & getTriple() const
Definition: ToolChain.h:183
virtual SanitizerMask getSupportedSanitizers() const
Return sanitizers which are available in this toolchain.
Definition: ToolChain.cpp:799
bool isNothing() const
Definition: InputInfo.h:75
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs...
Definition: Solaris.cpp:27
void addPathIfExists(const Driver &D, const Twine &Path, ToolChain::path_list &Paths)
Definition: CommonArgs.cpp:61
bool isFilename() const
Definition: InputInfo.h:76
bool addLibStdCXXIncludePaths(Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple, StringRef TargetMultiarchTriple, Twine IncludeSuffix, const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Helper to add the variant paths of a libstdc++ installation.
Definition: Gnu.cpp:2465
void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args, ArrayRef< std::string > ExtraTripleAliases=None)
Initialize a GCCInstallationDetector from the driver.
Definition: Gnu.cpp:1644
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition: Gnu.h:223
const Multilib & getMultilib() const
Get the detected Multilib.
Definition: Gnu.h:229
std::string ResourceDir
The path to the compiler resource directory.
Definition: Driver.h:133
bool isValid() const
Check whether we detected a valid GCC install.
Definition: Gnu.h:217