/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Driver/ToolChains/ZOS.cpp

Source (jump to first uncovered line)
//===--- ZOS.cpp - z/OS ToolChain Implementations ---------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "ZOS.h"
#include "CommonArgs.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Options.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/WithColor.h"

using namespace clang;
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang::driver::toolchains;
using namespace llvm;
using namespace llvm::opt;
using namespace llvm::sys;

ZOS::ZOS(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
    : ToolChain(D, Triple, Args) {}

ZOS::~ZOS() {}

void ZOS::addClangTargetOptions(const ArgList &DriverArgs,
                                ArgStringList &CC1Args,
                                Action::OffloadKind DeviceOffloadKind) const {
  // Pass "-faligned-alloc-unavailable" only when the user hasn't manually
  // enabled or disabled aligned allocations.
  if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation,
                                options::OPT_fno_aligned_allocation))
    CC1Args.push_back("-faligned-alloc-unavailable");
}

void zos::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
                                  const InputInfo &Output,
                                  const InputInfoList &Inputs,
                                  const ArgList &Args,
                                  const char *LinkingOutput) const {
  ArgStringList CmdArgs;

  Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);

  // Specify assembler output file.
  assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
  if (Output.isFilename()) {
    CmdArgs.push_back("-o");
    CmdArgs.push_back(Output.getFilename());
  }

  // Specify assembler input file.
  // The system assembler on z/OS takes exactly one input file. The driver is
  // expected to invoke as(1) separately for each assembler source input file.
  if (Inputs.size() != 1)
    llvm_unreachable("Invalid number of input files.");
  const InputInfo &II = Inputs[0];
  assert((II.isFilename() || II.isNothing()) && "Invalid input.");
  if (II.isFilename())
    CmdArgs.push_back(II.getFilename());

  const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
  C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
                                         Exec, CmdArgs, Inputs));
}

static std::string getLEHLQ(const ArgList &Args) {
  if (Args.hasArg(options::OPT_mzos_hlq_le_EQ)) {
    Arg *LEHLQArg = Args.getLastArg(options::OPT_mzos_hlq_le_EQ);
    StringRef HLQ = LEHLQArg->getValue();
    if (!HLQ.empty())
      return HLQ.str();
  }
  return "CEE";
}

static std::string getClangHLQ(const ArgList &Args) {
  if (Args.hasArg(options::OPT_mzos_hlq_clang_EQ)) {
    Arg *ClangHLQArg = Args.getLastArg(options::OPT_mzos_hlq_clang_EQ);
    StringRef HLQ = ClangHLQArg->getValue();
    if (!HLQ.empty())
      return HLQ.str();
  }
  return getLEHLQ(Args);
}

static std::string getCSSHLQ(const ArgList &Args) {
  if (Args.hasArg(options::OPT_mzos_hlq_csslib_EQ)) {
    Arg *CsslibHLQArg = Args.getLastArg(options::OPT_mzos_hlq_csslib_EQ);
    StringRef HLQ = CsslibHLQArg->getValue();
    if (!HLQ.empty())
      return HLQ.str();
  }
  return "SYS1";
}

void zos::Linker::ConstructJob(Compilation &C, const JobAction &JA,
                               const InputInfo &Output,
                               const InputInfoList &Inputs, const ArgList &Args,
                               const char *LinkingOutput) const {
  const ZOS &ToolChain = static_cast<const ZOS &>(getToolChain());
  ArgStringList CmdArgs;

  const bool IsSharedLib =
      Args.hasFlag(options::OPT_shared, options::OPT_static, false);

  assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
  if (Output.isFilename()) {
    CmdArgs.push_back("-o");
    CmdArgs.push_back(Output.getFilename());
  }

  SmallString<128> LinkerOptions;
  LinkerOptions = "AMODE=";
  LinkerOptions += "64";
  LinkerOptions += ",LIST";
  LinkerOptions += ",DYNAM=DLL";
  LinkerOptions += ",MSGLEVEL=4";
  LinkerOptions += ",CASE=MIXED";
  LinkerOptions += ",REUS=RENT";

  CmdArgs.push_back("-b");
  CmdArgs.push_back(Args.MakeArgString(LinkerOptions));

  if (!IsSharedLib) {
    CmdArgs.push_back("-e");
    CmdArgs.push_back("CELQSTRT");

    CmdArgs.push_back("-O");
    CmdArgs.push_back("CELQSTRT");

    CmdArgs.push_back("-u");
    CmdArgs.push_back("CELQMAIN");
  }

  // Generate side file if -shared option is present.
  if (IsSharedLib) {
    StringRef OutputName = Output.getFilename();
    // Strip away the last file suffix in presence from output name and add
    // a new .x suffix.
    size_t Suffix = OutputName.find_last_of(".");
    const char *SideDeckName =
        Args.MakeArgString(OutputName.substr(0, Suffix) + ".x");
    CmdArgs.push_back("-x");
    CmdArgs.push_back(SideDeckName);
  } else {
    // We need to direct side file to /dev/null to suppress linker warning when
    // the object file contains exported symbols, and -shared or
    // -Wl,-x<sidedeck>.x is not specified.
    CmdArgs.push_back("-x");
    CmdArgs.push_back("/dev/null");
  }

  Args.AddAllArgs(CmdArgs, options::OPT_u);

  // Add archive library search paths.
  Args.AddAllArgs(CmdArgs, options::OPT_L);
  ToolChain.AddFilePathLibArgs(Args, CmdArgs);

  // Specify linker input file(s)
  AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);

  //  z/OS tool chain depends on LE data sets and the CSSLIB data set.
  //  These data sets can have different high level qualifiers (HLQs)
  //  as each installation can define them differently.

  std::string LEHLQ = getLEHLQ(Args);
  std::string CsslibHLQ = getCSSHLQ(Args);

  StringRef ld_env_var = StringRef(getenv("_LD_SYSLIB")).trim();
  if (ld_env_var.empty()) {
    CmdArgs.push_back("-S");
    CmdArgs.push_back(Args.MakeArgString("//'" + LEHLQ + ".SCEEBND2'"));
    CmdArgs.push_back("-S");
    CmdArgs.push_back(Args.MakeArgString("//'" + CsslibHLQ + ".CSSLIB'"));
  }

  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
    ld_env_var = StringRef(getenv("_LD_SIDE_DECKS")).trim();
    if (ld_env_var.empty()) {
      CmdArgs.push_back(
          Args.MakeArgString("//'" + LEHLQ + ".SCEELIB(CELQS001)'"));
      CmdArgs.push_back(
          Args.MakeArgString("//'" + LEHLQ + ".SCEELIB(CELQS003)'"));
    } else {
      SmallVector<StringRef> ld_side_deck;
      ld_env_var.split(ld_side_deck, ":");
      for (StringRef ld_loc : ld_side_deck) {
        CmdArgs.push_back((ld_loc.str()).c_str());
      }
    }
  }
  // Link libc++ library
  if (ToolChain.ShouldLinkCXXStdlib(Args)) {
    ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
  }

  // Specify compiler-rt library path for linker
  if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
    AddRunTimeLibs(ToolChain, ToolChain.getDriver(), CmdArgs, Args);

  const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
  C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
                                         Exec, CmdArgs, Inputs));
}

ToolChain::RuntimeLibType ZOS::GetDefaultRuntimeLibType() const {
  return ToolChain::RLT_CompilerRT;
}

ToolChain::CXXStdlibType ZOS::GetDefaultCXXStdlibType() const {
  return ToolChain::CST_Libcxx;
}

void ZOS::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
                              llvm::opt::ArgStringList &CmdArgs) const {
  switch (GetCXXStdlibType(Args)) {
  case ToolChain::CST_Libstdcxx:
    llvm::report_fatal_error("linking libstdc++ is unimplemented on z/OS");
    break;
  case ToolChain::CST_Libcxx: {
    std::string ClangHLQ = getClangHLQ(Args);
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXE)'"));
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXS)'"));
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXP)'"));
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXA)'"));
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQXLA)'"));
    CmdArgs.push_back(
        Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQUNW)'"));
  } break;
  }
}

auto ZOS::buildAssembler() const -> Tool * { return new zos::Assembler(*this); }

auto ZOS::buildLinker() const -> Tool * { return new zos::Linker(*this); }

void ZOS::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
                                    ArgStringList &CC1Args) const {
  if (DriverArgs.hasArg(options::OPT_nostdinc))
    return;

  const Driver &D = getDriver();

  // resolve ResourceDir
  std::string ResourceDir(D.ResourceDir);

  // zos_wrappers must take highest precedence

  // - <clang>/lib/clang/<ver>/include/zos_wrappers
  if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
    SmallString<128> P(ResourceDir);
    path::append(P, "include", "zos_wrappers");
    addSystemInclude(DriverArgs, CC1Args, P.str());

    // - <clang>/lib/clang/<ver>/include
    SmallString<128> P2(ResourceDir);
    path::append(P2, "include");
    addSystemInclude(DriverArgs, CC1Args, P2.str());
  }

  // - /usr/include
  if (Arg *SysIncludeArg =
          DriverArgs.getLastArg(options::OPT_mzos_sys_include_EQ)) {
    StringRef SysInclude = SysIncludeArg->getValue();

    // fall back to the default include path
    if (!SysInclude.empty()) {

      // -mzos-sys-include opton can have colon separated
      // list of paths, so we need to parse the value.
      StringRef PathLE(SysInclude);
      size_t Colon = PathLE.find(':');
      if (Colon == StringRef::npos) {
        addSystemInclude(DriverArgs, CC1Args, PathLE.str());
        return;
      }

      while (1Colon != StringRef::npos) {
        SmallString<128> P = PathLE.substr(0, Colon);
        addSystemInclude(DriverArgs, CC1Args, P.str());
        PathLE = PathLE.substr(Colon + 1);
        Colon = PathLE.find(':');
      }
      if (PathLE.size())
        addSystemInclude(DriverArgs, CC1Args, PathLE.str());

      return;
    }
  }

  addSystemInclude(DriverArgs, CC1Args, "/usr/include");
}

void ZOS::TryAddIncludeFromPath(llvm::SmallString<128> Path,
                                const llvm::opt::ArgList &DriverArgs,
                                llvm::opt::ArgStringList &CC1Args) const {
  if (!getVFS().exists(Path)) {
    if (DriverArgs.hasArg(options::OPT_v))
      WithColor::warning(errs(), "Clang")
          << "ignoring nonexistent directory \"" << Path << "\"\n";
    if (!DriverArgs.hasArg(options::OPT__HASH_HASH_HASH))
      return;
  }
  addSystemInclude(DriverArgs, CC1Args, Path);
}

void ZOS::AddClangCXXStdlibIncludeArgs(
    const llvm::opt::ArgList &DriverArgs,
    llvm::opt::ArgStringList &CC1Args) const {
  if (DriverArgs.hasArg(options::OPT_nostdinc) ||
      DriverArgs.hasArg(options::OPT_nostdincxx)24 ||
      DriverArgs.hasArg(options::OPT_nostdlibinc)23)
    return;

  switch (GetCXXStdlibType(DriverArgs)) {
  case ToolChain::CST_Libcxx: {
    // <install>/bin/../include/c++/v1
    llvm::SmallString<128> InstallBin =
        llvm::StringRef(getDriver().getInstalledDir());
    llvm::sys::path::append(InstallBin, "..", "include", "c++", "v1");
    TryAddIncludeFromPath(InstallBin, DriverArgs, CC1Args);
    break;
  }
  case ToolChain::CST_Libstdcxx:
    llvm::report_fatal_error(
        "picking up libstdc++ headers is unimplemented on z/OS");
    break;
  }
}

Coverage Report

Created: 2023-09-30 09:22

Line	Count	Source (jump to first uncovered line)
1		//===--- ZOS.cpp - z/OS 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 "ZOS.h"
10		#include "CommonArgs.h"
11		#include "clang/Driver/Compilation.h"
12		#include "clang/Driver/Options.h"
13		#include "llvm/Option/ArgList.h"
14		#include "llvm/Support/FileSystem.h"
15		#include "llvm/Support/VirtualFileSystem.h"
16		#include "llvm/Support/WithColor.h"
17
18		using namespace clang;
19		using namespace clang::driver;
20		using namespace clang::driver::tools;
21		using namespace clang::driver::toolchains;
22		using namespace llvm;
23		using namespace llvm::opt;
24		using namespace llvm::sys;
25
26		ZOS::ZOS(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
27	37	: ToolChain(D, Triple, Args) {}
28
29	37	ZOS::~ZOS() {}
30
31		void ZOS::addClangTargetOptions(const ArgList &DriverArgs,
32		ArgStringList &CC1Args,
33	37	Action::OffloadKind DeviceOffloadKind) const {
34		// Pass "-faligned-alloc-unavailable" only when the user hasn't manually
35		// enabled or disabled aligned allocations.
36	37	if (!DriverArgs.hasArgNoClaim(options::OPT_faligned_allocation,
37	37	options::OPT_fno_aligned_allocation))
38	35	CC1Args.push_back("-faligned-alloc-unavailable");
39	37	}
40
41		void zos::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
42		const InputInfo &Output,
43		const InputInfoList &Inputs,
44		const ArgList &Args,
45	0	const char *LinkingOutput) const {
46	0	ArgStringList CmdArgs;
47
48	0	Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
49
50		// Specify assembler output file.
51	0	assert((Output.isFilename() \|\| Output.isNothing()) && "Invalid output.");
52	0	if (Output.isFilename()) {
53	0	CmdArgs.push_back("-o");
54	0	CmdArgs.push_back(Output.getFilename());
55	0	}
56
57		// Specify assembler input file.
58		// The system assembler on z/OS takes exactly one input file. The driver is
59		// expected to invoke as(1) separately for each assembler source input file.
60	0	if (Inputs.size() != 1)
61	0	llvm_unreachable("Invalid number of input files.");
62	0	const InputInfo &II = Inputs[0];
63	0	assert((II.isFilename() \|\| II.isNothing()) && "Invalid input.");
64	0	if (II.isFilename())
65	0	CmdArgs.push_back(II.getFilename());
66
67	0	const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
68	0	C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
69	0	Exec, CmdArgs, Inputs));
70	0	}
71
72	9	static std::string getLEHLQ(const ArgList &Args) {
73	9	if (Args.hasArg(options::OPT_mzos_hlq_le_EQ)) {
74	2	Arg *LEHLQArg = Args.getLastArg(options::OPT_mzos_hlq_le_EQ);
75	2	StringRef HLQ = LEHLQArg->getValue();
76	2	if (!HLQ.empty())
77	2	return HLQ.str();
78	2	}
79	7	return "CEE";
80	9	}
81
82	4	static std::string getClangHLQ(const ArgList &Args) {
83	4	if (Args.hasArg(options::OPT_mzos_hlq_clang_EQ)) {
84	1	Arg *ClangHLQArg = Args.getLastArg(options::OPT_mzos_hlq_clang_EQ);
85	1	StringRef HLQ = ClangHLQArg->getValue();
86	1	if (!HLQ.empty())
87	1	return HLQ.str();
88	1	}
89	3	return getLEHLQ(Args);
90	4	}
91
92	6	static std::string getCSSHLQ(const ArgList &Args) {
93	6	if (Args.hasArg(options::OPT_mzos_hlq_csslib_EQ)) {
94	1	Arg *CsslibHLQArg = Args.getLastArg(options::OPT_mzos_hlq_csslib_EQ);
95	1	StringRef HLQ = CsslibHLQArg->getValue();
96	1	if (!HLQ.empty())
97	1	return HLQ.str();
98	1	}
99	5	return "SYS1";
100	6	}
101
102		void zos::Linker::ConstructJob(Compilation &C, const JobAction &JA,
103		const InputInfo &Output,
104		const InputInfoList &Inputs, const ArgList &Args,
105	6	const char *LinkingOutput) const {
106	6	const ZOS &ToolChain = static_cast<const ZOS &>(getToolChain());
107	6	ArgStringList CmdArgs;
108
109	6	const bool IsSharedLib =
110	6	Args.hasFlag(options::OPT_shared, options::OPT_static, false);
111
112	6	assert((Output.isFilename() \|\| Output.isNothing()) && "Invalid output.");
113	6	if (Output.isFilename()) {
114	6	CmdArgs.push_back("-o");
115	6	CmdArgs.push_back(Output.getFilename());
116	6	}
117
118	6	SmallString<128> LinkerOptions;
119	6	LinkerOptions = "AMODE=";
120	6	LinkerOptions += "64";
121	6	LinkerOptions += ",LIST";
122	6	LinkerOptions += ",DYNAM=DLL";
123	6	LinkerOptions += ",MSGLEVEL=4";
124	6	LinkerOptions += ",CASE=MIXED";
125	6	LinkerOptions += ",REUS=RENT";
126
127	6	CmdArgs.push_back("-b");
128	6	CmdArgs.push_back(Args.MakeArgString(LinkerOptions));
129
130	6	if (!IsSharedLib) {
131	4	CmdArgs.push_back("-e");
132	4	CmdArgs.push_back("CELQSTRT");
133
134	4	CmdArgs.push_back("-O");
135	4	CmdArgs.push_back("CELQSTRT");
136
137	4	CmdArgs.push_back("-u");
138	4	CmdArgs.push_back("CELQMAIN");
139	4	}
140
141		// Generate side file if -shared option is present.
142	6	if (IsSharedLib) {
143	2	StringRef OutputName = Output.getFilename();
144		// Strip away the last file suffix in presence from output name and add
145		// a new .x suffix.
146	2	size_t Suffix = OutputName.find_last_of(".");
147	2	const char *SideDeckName =
148	2	Args.MakeArgString(OutputName.substr(0, Suffix) + ".x");
149	2	CmdArgs.push_back("-x");
150	2	CmdArgs.push_back(SideDeckName);
151	4	} else {
152		// We need to direct side file to /dev/null to suppress linker warning when
153		// the object file contains exported symbols, and -shared or
154		// -Wl,-x<sidedeck>.x is not specified.
155	4	CmdArgs.push_back("-x");
156	4	CmdArgs.push_back("/dev/null");
157	4	}
158
159	6	Args.AddAllArgs(CmdArgs, options::OPT_u);
160
161		// Add archive library search paths.
162	6	Args.AddAllArgs(CmdArgs, options::OPT_L);
163	6	ToolChain.AddFilePathLibArgs(Args, CmdArgs);
164
165		// Specify linker input file(s)
166	6	AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
167
168		// z/OS tool chain depends on LE data sets and the CSSLIB data set.
169		// These data sets can have different high level qualifiers (HLQs)
170		// as each installation can define them differently.
171
172	6	std::string LEHLQ = getLEHLQ(Args);
173	6	std::string CsslibHLQ = getCSSHLQ(Args);
174
175	6	StringRef ld_env_var = StringRef(getenv("_LD_SYSLIB")).trim();
176	6	if (ld_env_var.empty()) {
177	6	CmdArgs.push_back("-S");
178	6	CmdArgs.push_back(Args.MakeArgString("//'" + LEHLQ + ".SCEEBND2'"));
179	6	CmdArgs.push_back("-S");
180	6	CmdArgs.push_back(Args.MakeArgString("//'" + CsslibHLQ + ".CSSLIB'"));
181	6	}
182
183	6	if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
184	6	ld_env_var = StringRef(getenv("_LD_SIDE_DECKS")).trim();
185	6	if (ld_env_var.empty()) {
186	6	CmdArgs.push_back(
187	6	Args.MakeArgString("//'" + LEHLQ + ".SCEELIB(CELQS001)'"));
188	6	CmdArgs.push_back(
189	6	Args.MakeArgString("//'" + LEHLQ + ".SCEELIB(CELQS003)'"));
190	6	} else {
191	0	SmallVector<StringRef> ld_side_deck;
192	0	ld_env_var.split(ld_side_deck, ":");
193	0	for (StringRef ld_loc : ld_side_deck) {
194	0	CmdArgs.push_back((ld_loc.str()).c_str());
195	0	}
196	0	}
197	6	}
198		// Link libc++ library
199	6	if (ToolChain.ShouldLinkCXXStdlib(Args)) {
200	4	ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
201	4	}
202
203		// Specify compiler-rt library path for linker
204	6	if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
205	6	AddRunTimeLibs(ToolChain, ToolChain.getDriver(), CmdArgs, Args);
206
207	6	const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
208	6	C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
209	6	Exec, CmdArgs, Inputs));
210	6	}
211
212	6	ToolChain::RuntimeLibType ZOS::GetDefaultRuntimeLibType() const {
213	6	return ToolChain::RLT_CompilerRT;
214	6	}
215
216	22	ToolChain::CXXStdlibType ZOS::GetDefaultCXXStdlibType() const {
217	22	return ToolChain::CST_Libcxx;
218	22	}
219
220		void ZOS::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
221	4	llvm::opt::ArgStringList &CmdArgs) const {
222	4	switch (GetCXXStdlibType(Args)) {
223	0	case ToolChain::CST_Libstdcxx:
224	0	llvm::report_fatal_error("linking libstdc++ is unimplemented on z/OS");
225	0	break;
226	4	case ToolChain::CST_Libcxx: {
227	4	std::string ClangHLQ = getClangHLQ(Args);
228	4	CmdArgs.push_back(
229	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXE)'"));
230	4	CmdArgs.push_back(
231	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXS)'"));
232	4	CmdArgs.push_back(
233	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXP)'"));
234	4	CmdArgs.push_back(
235	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQCXA)'"));
236	4	CmdArgs.push_back(
237	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQXLA)'"));
238	4	CmdArgs.push_back(
239	4	Args.MakeArgString("//'" + ClangHLQ + ".SCEELIB(CRTDQUNW)'"));
240	4	} break;
241	4	}
242	4	}
243
244	0	auto ZOS::buildAssembler() const -> Tool * { return new zos::Assembler(*this); }
245
246	6	auto ZOS::buildLinker() const -> Tool * { return new zos::Linker(*this); }
247
248		void ZOS::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
249	37	ArgStringList &CC1Args) const {
250	37	if (DriverArgs.hasArg(options::OPT_nostdinc))
251	2	return;
252
253	35	const Driver &D = getDriver();
254
255		// resolve ResourceDir
256	35	std::string ResourceDir(D.ResourceDir);
257
258		// zos_wrappers must take highest precedence
259
260		// - <clang>/lib/clang/<ver>/include/zos_wrappers
261	35	if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
262	33	SmallString<128> P(ResourceDir);
263	33	path::append(P, "include", "zos_wrappers");
264	33	addSystemInclude(DriverArgs, CC1Args, P.str());
265
266		// - <clang>/lib/clang/<ver>/include
267	33	SmallString<128> P2(ResourceDir);
268	33	path::append(P2, "include");
269	33	addSystemInclude(DriverArgs, CC1Args, P2.str());
270	33	}
271
272		// - /usr/include
273	35	if (Arg *SysIncludeArg =
274	35	DriverArgs.getLastArg(options::OPT_mzos_sys_include_EQ)) {
275	3	StringRef SysInclude = SysIncludeArg->getValue();
276
277		// fall back to the default include path
278	3	if (!SysInclude.empty()) {
279
280		// -mzos-sys-include opton can have colon separated
281		// list of paths, so we need to parse the value.
282	3	StringRef PathLE(SysInclude);
283	3	size_t Colon = PathLE.find(':');
284	3	if (Colon == StringRef::npos) {
285	2	addSystemInclude(DriverArgs, CC1Args, PathLE.str());
286	2	return;
287	2	}
288
289	2	while (1 Colon != StringRef::npos) {
290	1	SmallString<128> P = PathLE.substr(0, Colon);
291	1	addSystemInclude(DriverArgs, CC1Args, P.str());
292	1	PathLE = PathLE.substr(Colon + 1);
293	1	Colon = PathLE.find(':');
294	1	}
295	1	if (PathLE.size())
296	1	addSystemInclude(DriverArgs, CC1Args, PathLE.str());
297
298	1	return;
299	3	}
300	3	}
301
302	32	addSystemInclude(DriverArgs, CC1Args, "/usr/include");
303	32	}
304
305		void ZOS::TryAddIncludeFromPath(llvm::SmallString<128> Path,
306		const llvm::opt::ArgList &DriverArgs,
307	22	llvm::opt::ArgStringList &CC1Args) const {
308	22	if (!getVFS().exists(Path)) {
309	9	if (DriverArgs.hasArg(options::OPT_v))
310	0	WithColor::warning(errs(), "Clang")
311	0	<< "ignoring nonexistent directory \"" << Path << "\"\n";
312	9	if (!DriverArgs.hasArg(options::OPT__HASH_HASH_HASH))
313	9	return;
314	9	}
315	13	addSystemInclude(DriverArgs, CC1Args, Path);
316	13	}
317
318		void ZOS::AddClangCXXStdlibIncludeArgs(
319		const llvm::opt::ArgList &DriverArgs,
320	25	llvm::opt::ArgStringList &CC1Args) const {
321	25	if (DriverArgs.hasArg(options::OPT_nostdinc) \|\|
322	25	DriverArgs.hasArg(options::OPT_nostdincxx)24 \|\|
323	25	DriverArgs.hasArg(options::OPT_nostdlibinc)23 )
324	3	return;
325
326	22	switch (GetCXXStdlibType(DriverArgs)) {
327	22	case ToolChain::CST_Libcxx: {
328		// <install>/bin/../include/c++/v1
329	22	llvm::SmallString<128> InstallBin =
330	22	llvm::StringRef(getDriver().getInstalledDir());
331	22	llvm::sys::path::append(InstallBin, "..", "include", "c++", "v1");
332	22	TryAddIncludeFromPath(InstallBin, DriverArgs, CC1Args);
333	22	break;
334	0	}
335	0	case ToolChain::CST_Libstdcxx:
336	0	llvm::report_fatal_error(
337	0	"picking up libstdc++ headers is unimplemented on z/OS");
338	0	break;
339	22	}
340	22	}