Source/cmNinjaNormalTargetGenerator.cxx

   1 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   2    file Copyright.txt or https://cmake.org/licensing for details.  */
   3 #include "cmNinjaNormalTargetGenerator.h"
   4
   5 #include <algorithm>
   6 #include <cassert>
   7 #include <iterator>
   8 #include <map>
   9 #include <set>
  10 #include <sstream>
  11 #include <utility>
  12
  13 #include <cm/memory>
  14 #include <cm/vector>
  15
  16 #include "cmComputeLinkInformation.h"
  17 #include "cmCustomCommand.h" // IWYU pragma: keep
  18 #include "cmCustomCommandGenerator.h"
  19 #include "cmGeneratedFileStream.h"
  20 #include "cmGeneratorTarget.h"
  21 #include "cmGlobalNinjaGenerator.h"
  22 #include "cmLinkLineComputer.h"
  23 #include "cmLinkLineDeviceComputer.h"
  24 #include "cmLocalCommonGenerator.h"
  25 #include "cmLocalGenerator.h"
  26 #include "cmLocalNinjaGenerator.h"
  27 #include "cmMakefile.h"
  28 #include "cmNinjaLinkLineDeviceComputer.h"
  29 #include "cmNinjaTypes.h"
  30 #include "cmOSXBundleGenerator.h"
  31 #include "cmOutputConverter.h"
  32 #include "cmProperty.h"
  33 #include "cmRulePlaceholderExpander.h"
  34 #include "cmSourceFile.h"
  35 #include "cmState.h"
  36 #include "cmStateDirectory.h"
  37 #include "cmStateSnapshot.h"
  38 #include "cmStateTypes.h"
  39 #include "cmStringAlgorithms.h"
  40 #include "cmSystemTools.h"
  41
  42 cmNinjaNormalTargetGenerator::cmNinjaNormalTargetGenerator(
  43   cmGeneratorTarget* target)
  44   : cmNinjaTargetGenerator(target)
  45 {
  46   if (target->GetType() != cmStateEnums::OBJECT_LIBRARY) {
  47     // on Windows the output dir is already needed at compile time
  48     // ensure the directory exists (OutDir test)
  49     for (auto const& config : this->GetConfigNames()) {
  50       EnsureDirectoryExists(target->GetDirectory(config));
  51     }
  52   }
  53
  54   this->OSXBundleGenerator = cm::make_unique<cmOSXBundleGenerator>(target);
  55   this->OSXBundleGenerator->SetMacContentFolders(&this->MacContentFolders);
  56 }
  57
  58 cmNinjaNormalTargetGenerator::~cmNinjaNormalTargetGenerator() = default;
  59
  60 void cmNinjaNormalTargetGenerator::Generate(const std::string& config)
  61 {
  62   std::string lang = this->GeneratorTarget->GetLinkerLanguage(config);
  63   if (this->TargetLinkLanguage(config).empty()) {
  64     cmSystemTools::Error("CMake can not determine linker language for "
  65                          "target: " +
  66                          this->GetGeneratorTarget()->GetName());
  67     return;
  68   }
  69
  70   // Write the rules for each language.
  71   this->WriteLanguagesRules(config);
  72
  73   // Write the build statements
  74   bool firstForConfig = true;
  75   for (auto const& fileConfig : this->GetConfigNames()) {
  76     if (!this->GetGlobalGenerator()
  77            ->GetCrossConfigs(fileConfig)
  78            .count(config)) {
  79       continue;
  80     }
  81     this->WriteObjectBuildStatements(config, fileConfig, firstForConfig);
  82     firstForConfig = false;
  83   }
  84
  85   if (this->GetGeneratorTarget()->GetType() == cmStateEnums::OBJECT_LIBRARY) {
  86     this->WriteObjectLibStatement(config);
  87   } else {
  88     firstForConfig = true;
  89     for (auto const& fileConfig : this->GetConfigNames()) {
  90       if (!this->GetGlobalGenerator()
  91              ->GetCrossConfigs(fileConfig)
  92              .count(config)) {
  93         continue;
  94       }
  95       // If this target has cuda language link inputs, and we need to do
  96       // device linking
  97       this->WriteDeviceLinkStatement(config, fileConfig, firstForConfig);
  98       this->WriteLinkStatement(config, fileConfig, firstForConfig);
  99       firstForConfig = false;
 100     }
 101   }
 102   if (this->GetGlobalGenerator()->EnableCrossConfigBuild()) {
 103     this->GetGlobalGenerator()->AddTargetAlias(
 104       this->GetTargetName(), this->GetGeneratorTarget(), "all");
 105   }
 106
 107   // Find ADDITIONAL_CLEAN_FILES
 108   this->AdditionalCleanFiles(config);
 109 }
 110
 111 void cmNinjaNormalTargetGenerator::WriteLanguagesRules(
 112   const std::string& config)
 113 {
 114 #ifdef NINJA_GEN_VERBOSE_FILES
 115   cmGlobalNinjaGenerator::WriteDivider(this->GetRulesFileStream());
 116   this->GetRulesFileStream()
 117     << "# Rules for each languages for "
 118     << cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType())
 119     << " target " << this->GetTargetName() << "\n\n";
 120 #endif
 121
 122   // Write rules for languages compiled in this target.
 123   std::set<std::string> languages;
 124   std::vector<cmSourceFile const*> sourceFiles;
 125   this->GetGeneratorTarget()->GetObjectSources(sourceFiles, config);
 126   for (cmSourceFile const* sf : sourceFiles) {
 127     std::string const lang = sf->GetLanguage();
 128     if (!lang.empty()) {
 129       languages.insert(lang);
 130     }
 131   }
 132   for (std::string const& language : languages) {
 133     this->WriteLanguageRules(language, config);
 134   }
 135 }
 136
 137 const char* cmNinjaNormalTargetGenerator::GetVisibleTypeName() const
 138 {
 139   switch (this->GetGeneratorTarget()->GetType()) {
 140     case cmStateEnums::STATIC_LIBRARY:
 141       return "static library";
 142     case cmStateEnums::SHARED_LIBRARY:
 143       return "shared library";
 144     case cmStateEnums::MODULE_LIBRARY:
 145       if (this->GetGeneratorTarget()->IsCFBundleOnApple()) {
 146         return "CFBundle shared module";
 147       } else {
 148         return "shared module";
 149       }
 150     case cmStateEnums::EXECUTABLE:
 151       return "executable";
 152     default:
 153       return nullptr;
 154   }
 155 }
 156
 157 std::string cmNinjaNormalTargetGenerator::LanguageLinkerRule(
 158   const std::string& config) const
 159 {
 160   return cmStrCat(
 161     this->TargetLinkLanguage(config), "_",
 162     cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType()),
 163     "_LINKER__",
 164     cmGlobalNinjaGenerator::EncodeRuleName(
 165       this->GetGeneratorTarget()->GetName()),
 166     "_", config);
 167 }
 168
 169 std::string cmNinjaNormalTargetGenerator::LanguageLinkerDeviceRule(
 170   const std::string& config) const
 171 {
 172   return cmStrCat(
 173     this->TargetLinkLanguage(config), "_",
 174     cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType()),
 175     "_DEVICE_LINKER__",
 176     cmGlobalNinjaGenerator::EncodeRuleName(
 177       this->GetGeneratorTarget()->GetName()),
 178     "_", config);
 179 }
 180
 181 struct cmNinjaRemoveNoOpCommands
 182 {
 183   bool operator()(std::string const& cmd)
 184   {
 185     return cmd.empty() || cmd[0] == ':';
 186   }
 187 };
 188
 189 void cmNinjaNormalTargetGenerator::WriteDeviceLinkRule(
 190   bool useResponseFile, const std::string& config)
 191 {
 192   cmNinjaRule rule(this->LanguageLinkerDeviceRule(config));
 193   if (!this->GetGlobalGenerator()->HasRule(rule.Name)) {
 194     cmRulePlaceholderExpander::RuleVariables vars;
 195     vars.CMTargetName = this->GetGeneratorTarget()->GetName().c_str();
 196     vars.CMTargetType =
 197       cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType())
 198         .c_str();
 199
 200     vars.Language = "CUDA";
 201
 202     // build response file name
 203     std::string responseFlag = this->GetMakefile()->GetSafeDefinition(
 204       "CMAKE_CUDA_RESPONSE_FILE_DEVICE_LINK_FLAG");
 205
 206     if (!useResponseFile || responseFlag.empty()) {
 207       vars.Objects = "$in";
 208       vars.LinkLibraries = "$LINK_PATH $LINK_LIBRARIES";
 209     } else {
 210       rule.RspFile = "$RSP_FILE";
 211       responseFlag += rule.RspFile;
 212
 213       // build response file content
 214       if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
 215         rule.RspContent = "$in";
 216       } else {
 217         rule.RspContent = "$in_newline";
 218       }
 219       rule.RspContent += " $LINK_LIBRARIES";
 220       vars.Objects = responseFlag.c_str();
 221       vars.LinkLibraries = "";
 222     }
 223
 224     vars.ObjectDir = "$OBJECT_DIR";
 225
 226     vars.Target = "$TARGET_FILE";
 227
 228     vars.SONameFlag = "$SONAME_FLAG";
 229     vars.TargetSOName = "$SONAME";
 230     vars.TargetPDB = "$TARGET_PDB";
 231     vars.TargetCompilePDB = "$TARGET_COMPILE_PDB";
 232
 233     vars.Flags = "$FLAGS";
 234     vars.LinkFlags = "$LINK_FLAGS";
 235     vars.Manifests = "$MANIFESTS";
 236
 237     vars.LanguageCompileFlags = "$LANGUAGE_COMPILE_FLAGS";
 238
 239     std::string launcher;
 240     const char* val = this->GetLocalGenerator()->GetRuleLauncher(
 241       this->GetGeneratorTarget(), "RULE_LAUNCH_LINK");
 242     if (val && *val) {
 243       launcher = cmStrCat(val, ' ');
 244     }
 245
 246     std::unique_ptr<cmRulePlaceholderExpander> rulePlaceholderExpander(
 247       this->GetLocalGenerator()->CreateRulePlaceholderExpander());
 248
 249     // Rule for linking library/executable.
 250     std::vector<std::string> linkCmds = this->ComputeDeviceLinkCmd();
 251     for (std::string& linkCmd : linkCmds) {
 252       linkCmd = cmStrCat(launcher, linkCmd);
 253       rulePlaceholderExpander->ExpandRuleVariables(this->GetLocalGenerator(),
 254                                                    linkCmd, vars);
 255     }
 256
 257     // If there is no ranlib the command will be ":".  Skip it.
 258     cm::erase_if(linkCmds, cmNinjaRemoveNoOpCommands());
 259
 260     rule.Command = this->GetLocalGenerator()->BuildCommandLine(linkCmds);
 261
 262     // Write the linker rule with response file if needed.
 263     rule.Comment =
 264       cmStrCat("Rule for linking ", this->TargetLinkLanguage(config), ' ',
 265                this->GetVisibleTypeName(), '.');
 266     rule.Description =
 267       cmStrCat("Linking ", this->TargetLinkLanguage(config), ' ',
 268                this->GetVisibleTypeName(), " $TARGET_FILE");
 269     rule.Restat = "$RESTAT";
 270
 271     this->GetGlobalGenerator()->AddRule(rule);
 272   }
 273 }
 274
 275 void cmNinjaNormalTargetGenerator::WriteLinkRule(bool useResponseFile,
 276                                                  const std::string& config)
 277 {
 278   cmStateEnums::TargetType targetType = this->GetGeneratorTarget()->GetType();
 279
 280   std::string linkRuleName = this->LanguageLinkerRule(config);
 281   if (!this->GetGlobalGenerator()->HasRule(linkRuleName)) {
 282     cmNinjaRule rule(std::move(linkRuleName));
 283     cmRulePlaceholderExpander::RuleVariables vars;
 284     vars.CMTargetName = this->GetGeneratorTarget()->GetName().c_str();
 285     vars.CMTargetType = cmState::GetTargetTypeName(targetType).c_str();
 286
 287     std::string lang = this->TargetLinkLanguage(config);
 288     vars.Language = config.c_str();
 289     vars.AIXExports = "$AIX_EXPORTS";
 290
 291     if (this->TargetLinkLanguage(config) == "Swift") {
 292       vars.SwiftLibraryName = "$SWIFT_LIBRARY_NAME";
 293       vars.SwiftModule = "$SWIFT_MODULE";
 294       vars.SwiftModuleName = "$SWIFT_MODULE_NAME";
 295       vars.SwiftOutputFileMap = "$SWIFT_OUTPUT_FILE_MAP";
 296       vars.SwiftSources = "$SWIFT_SOURCES";
 297
 298       vars.Defines = "$DEFINES";
 299       vars.Flags = "$FLAGS";
 300       vars.Includes = "$INCLUDES";
 301     }
 302
 303     std::string responseFlag;
 304
 305     std::string cmakeVarLang =
 306       cmStrCat("CMAKE_", this->TargetLinkLanguage(config));
 307
 308     // build response file name
 309     std::string cmakeLinkVar = cmakeVarLang + "_RESPONSE_FILE_LINK_FLAG";
 310     const char* flag = GetMakefile()->GetDefinition(cmakeLinkVar);
 311
 312     if (flag) {
 313       responseFlag = flag;
 314     } else {
 315       responseFlag = "@";
 316     }
 317
 318     if (!useResponseFile || responseFlag.empty()) {
 319       vars.Objects = "$in";
 320       vars.LinkLibraries = "$LINK_PATH $LINK_LIBRARIES";
 321     } else {
 322       rule.RspFile = "$RSP_FILE";
 323       responseFlag += rule.RspFile;
 324
 325       // build response file content
 326       if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
 327         rule.RspContent = "$in";
 328       } else {
 329         rule.RspContent = "$in_newline";
 330       }
 331       rule.RspContent += " $LINK_PATH $LINK_LIBRARIES";
 332       if (this->TargetLinkLanguage(config) == "Swift") {
 333         vars.SwiftSources = responseFlag.c_str();
 334       } else {
 335         vars.Objects = responseFlag.c_str();
 336       }
 337       vars.LinkLibraries = "";
 338     }
 339
 340     vars.ObjectDir = "$OBJECT_DIR";
 341
 342     vars.Target = "$TARGET_FILE";
 343
 344     vars.SONameFlag = "$SONAME_FLAG";
 345     vars.TargetSOName = "$SONAME";
 346     vars.TargetInstallNameDir = "$INSTALLNAME_DIR";
 347     vars.TargetPDB = "$TARGET_PDB";
 348
 349     // Setup the target version.
 350     std::string targetVersionMajor;
 351     std::string targetVersionMinor;
 352     {
 353       std::ostringstream majorStream;
 354       std::ostringstream minorStream;
 355       int major;
 356       int minor;
 357       this->GetGeneratorTarget()->GetTargetVersion(major, minor);
 358       majorStream << major;
 359       minorStream << minor;
 360       targetVersionMajor = majorStream.str();
 361       targetVersionMinor = minorStream.str();
 362     }
 363     vars.TargetVersionMajor = targetVersionMajor.c_str();
 364     vars.TargetVersionMinor = targetVersionMinor.c_str();
 365
 366     vars.Flags = "$FLAGS";
 367     vars.LinkFlags = "$LINK_FLAGS";
 368     vars.Manifests = "$MANIFESTS";
 369
 370     std::string langFlags;
 371     if (targetType != cmStateEnums::EXECUTABLE) {
 372       langFlags += "$LANGUAGE_COMPILE_FLAGS $ARCH_FLAGS";
 373       vars.LanguageCompileFlags = langFlags.c_str();
 374     }
 375
 376     std::string launcher;
 377     const char* val = this->GetLocalGenerator()->GetRuleLauncher(
 378       this->GetGeneratorTarget(), "RULE_LAUNCH_LINK");
 379     if (val && *val) {
 380       launcher = cmStrCat(val, ' ');
 381     }
 382
 383     std::unique_ptr<cmRulePlaceholderExpander> rulePlaceholderExpander(
 384       this->GetLocalGenerator()->CreateRulePlaceholderExpander());
 385
 386     // Rule for linking library/executable.
 387     std::vector<std::string> linkCmds = this->ComputeLinkCmd(config);
 388     for (std::string& linkCmd : linkCmds) {
 389       linkCmd = cmStrCat(launcher, linkCmd);
 390       rulePlaceholderExpander->ExpandRuleVariables(this->GetLocalGenerator(),
 391                                                    linkCmd, vars);
 392     }
 393
 394     // If there is no ranlib the command will be ":".  Skip it.
 395     cm::erase_if(linkCmds, cmNinjaRemoveNoOpCommands());
 396
 397     linkCmds.insert(linkCmds.begin(), "$PRE_LINK");
 398     linkCmds.emplace_back("$POST_BUILD");
 399     rule.Command = this->GetLocalGenerator()->BuildCommandLine(linkCmds);
 400
 401     // Write the linker rule with response file if needed.
 402     rule.Comment =
 403       cmStrCat("Rule for linking ", this->TargetLinkLanguage(config), ' ',
 404                this->GetVisibleTypeName(), '.');
 405     rule.Description =
 406       cmStrCat("Linking ", this->TargetLinkLanguage(config), ' ',
 407                this->GetVisibleTypeName(), " $TARGET_FILE");
 408     rule.Restat = "$RESTAT";
 409     this->GetGlobalGenerator()->AddRule(rule);
 410   }
 411
 412   auto const tgtNames = this->TargetNames(config);
 413   if (tgtNames.Output != tgtNames.Real &&
 414       !this->GetGeneratorTarget()->IsFrameworkOnApple()) {
 415     std::string cmakeCommand =
 416       this->GetLocalGenerator()->ConvertToOutputFormat(
 417         cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
 418     if (targetType == cmStateEnums::EXECUTABLE) {
 419       cmNinjaRule rule("CMAKE_SYMLINK_EXECUTABLE");
 420       {
 421         std::vector<std::string> cmd;
 422         cmd.push_back(cmakeCommand + " -E cmake_symlink_executable $in $out");
 423         cmd.emplace_back("$POST_BUILD");
 424         rule.Command = this->GetLocalGenerator()->BuildCommandLine(cmd);
 425       }
 426       rule.Description = "Creating executable symlink $out";
 427       rule.Comment = "Rule for creating executable symlink.";
 428       this->GetGlobalGenerator()->AddRule(rule);
 429     } else {
 430       cmNinjaRule rule("CMAKE_SYMLINK_LIBRARY");
 431       {
 432         std::vector<std::string> cmd;
 433         cmd.push_back(cmakeCommand +
 434                       " -E cmake_symlink_library $in $SONAME $out");
 435         cmd.emplace_back("$POST_BUILD");
 436         rule.Command = this->GetLocalGenerator()->BuildCommandLine(cmd);
 437       }
 438       rule.Description = "Creating library symlink $out";
 439       rule.Comment = "Rule for creating library symlink.";
 440       this->GetGlobalGenerator()->AddRule(rule);
 441     }
 442   }
 443 }
 444
 445 std::vector<std::string> cmNinjaNormalTargetGenerator::ComputeDeviceLinkCmd()
 446 {
 447   std::vector<std::string> linkCmds;
 448
 449   // this target requires separable cuda compilation
 450   // now build the correct command depending on if the target is
 451   // an executable or a dynamic library.
 452   std::string linkCmd;
 453   switch (this->GetGeneratorTarget()->GetType()) {
 454     case cmStateEnums::STATIC_LIBRARY:
 455     case cmStateEnums::SHARED_LIBRARY:
 456     case cmStateEnums::MODULE_LIBRARY: {
 457       this->GetMakefile()->GetDefExpandList("CMAKE_CUDA_DEVICE_LINK_LIBRARY",
 458                                             linkCmds);
 459     } break;
 460     case cmStateEnums::EXECUTABLE: {
 461       this->GetMakefile()->GetDefExpandList(
 462         "CMAKE_CUDA_DEVICE_LINK_EXECUTABLE", linkCmds);
 463     } break;
 464     default:
 465       break;
 466   }
 467   return linkCmds;
 468 }
 469
 470 std::vector<std::string> cmNinjaNormalTargetGenerator::ComputeLinkCmd(
 471   const std::string& config)
 472 {
 473   std::vector<std::string> linkCmds;
 474   cmMakefile* mf = this->GetMakefile();
 475   {
 476     // If we have a rule variable prefer it. In the case of static libraries
 477     // this occurs when things like IPO is enabled, and we need to use the
 478     // CMAKE_<lang>_CREATE_STATIC_LIBRARY_IPO define instead.
 479     std::string linkCmdVar = this->GetGeneratorTarget()->GetCreateRuleVariable(
 480       this->TargetLinkLanguage(config), config);
 481     const char* linkCmd = mf->GetDefinition(linkCmdVar);
 482     if (linkCmd) {
 483       std::string linkCmdStr = linkCmd;
 484       if (this->GetGeneratorTarget()->HasImplibGNUtoMS(config)) {
 485         std::string ruleVar =
 486           cmStrCat("CMAKE_", this->GeneratorTarget->GetLinkerLanguage(config),
 487                    "_GNUtoMS_RULE");
 488         if (const char* rule = this->Makefile->GetDefinition(ruleVar)) {
 489           linkCmdStr += rule;
 490         }
 491       }
 492       cmExpandList(linkCmdStr, linkCmds);
 493       if (this->GetGeneratorTarget()->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
 494         std::string cmakeCommand = cmStrCat(
 495           this->GetLocalGenerator()->ConvertToOutputFormat(
 496             cmSystemTools::GetCMakeCommand(), cmLocalGenerator::SHELL),
 497           " -E __run_co_compile --lwyu=");
 498         cmGeneratorTarget& gt = *this->GetGeneratorTarget();
 499         std::string targetOutputReal = this->ConvertToNinjaPath(
 500           gt.GetFullPath(config, cmStateEnums::RuntimeBinaryArtifact,
 501                          /*realname=*/true));
 502         cmakeCommand += targetOutputReal;
 503         linkCmds.push_back(std::move(cmakeCommand));
 504       }
 505       return linkCmds;
 506     }
 507   }
 508   switch (this->GetGeneratorTarget()->GetType()) {
 509     case cmStateEnums::STATIC_LIBRARY: {
 510       // We have archive link commands set. First, delete the existing archive.
 511       {
 512         std::string cmakeCommand =
 513           this->GetLocalGenerator()->ConvertToOutputFormat(
 514             cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
 515         linkCmds.push_back(cmakeCommand + " -E rm -f $TARGET_FILE");
 516       }
 517       // TODO: Use ARCHIVE_APPEND for archives over a certain size.
 518       {
 519         std::string linkCmdVar = cmStrCat(
 520           "CMAKE_", this->TargetLinkLanguage(config), "_ARCHIVE_CREATE");
 521
 522         linkCmdVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
 523           linkCmdVar, this->TargetLinkLanguage(config), config);
 524
 525         std::string const& linkCmd = mf->GetRequiredDefinition(linkCmdVar);
 526         cmExpandList(linkCmd, linkCmds);
 527       }
 528       {
 529         std::string linkCmdVar = cmStrCat(
 530           "CMAKE_", this->TargetLinkLanguage(config), "_ARCHIVE_FINISH");
 531
 532         linkCmdVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
 533           linkCmdVar, this->TargetLinkLanguage(config), config);
 534
 535         std::string const& linkCmd = mf->GetRequiredDefinition(linkCmdVar);
 536         cmExpandList(linkCmd, linkCmds);
 537       }
 538 #ifdef __APPLE__
 539       // On macOS ranlib truncates the fractional part of the static archive
 540       // file modification time.  If the archive and at least one contained
 541       // object file were created within the same second this will make look
 542       // the archive older than the object file. On subsequent ninja runs this
 543       // leads to re-achiving and updating dependent targets.
 544       // As a work-around we touch the archive after ranlib (see #19222).
 545       {
 546         std::string cmakeCommand =
 547           this->GetLocalGenerator()->ConvertToOutputFormat(
 548             cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
 549         linkCmds.push_back(cmakeCommand + " -E touch $TARGET_FILE");
 550       }
 551 #endif
 552     } break;
 553     case cmStateEnums::SHARED_LIBRARY:
 554     case cmStateEnums::MODULE_LIBRARY:
 555       break;
 556     case cmStateEnums::EXECUTABLE:
 557       if (this->TargetLinkLanguage(config) == "Swift") {
 558         if (this->GeneratorTarget->IsExecutableWithExports()) {
 559           this->Makefile->GetDefExpandList("CMAKE_EXE_EXPORTS_Swift_FLAG",
 560                                            linkCmds);
 561         }
 562       }
 563       break;
 564     default:
 565       assert(false && "Unexpected target type");
 566   }
 567   return linkCmds;
 568 }
 569
 570 void cmNinjaNormalTargetGenerator::WriteDeviceLinkStatement(
 571   const std::string& config, const std::string& fileConfig,
 572   bool firstForConfig)
 573 {
 574   cmGlobalNinjaGenerator* globalGen = this->GetGlobalGenerator();
 575   if (!globalGen->GetLanguageEnabled("CUDA")) {
 576     return;
 577   }
 578
 579   cmGeneratorTarget* genTarget = this->GetGeneratorTarget();
 580
 581   bool requiresDeviceLinking = requireDeviceLinking(
 582     *this->GeneratorTarget, *this->GetLocalGenerator(), config);
 583   if (!requiresDeviceLinking) {
 584     return;
 585   }
 586
 587   // First and very important step is to make sure while inside this
 588   // step our link language is set to CUDA
 589   std::string cudaLinkLanguage = "CUDA";
 590   std::string const& objExt =
 591     this->Makefile->GetSafeDefinition("CMAKE_CUDA_OUTPUT_EXTENSION");
 592
 593   std::string targetOutputDir =
 594     cmStrCat(this->GetLocalGenerator()->GetTargetDirectory(genTarget),
 595              globalGen->ConfigDirectory(config), "/");
 596   targetOutputDir = globalGen->ExpandCFGIntDir(targetOutputDir, config);
 597
 598   std::string targetOutputReal =
 599     ConvertToNinjaPath(targetOutputDir + "cmake_device_link" + objExt);
 600
 601   std::string targetOutputImplib = ConvertToNinjaPath(
 602     genTarget->GetFullPath(config, cmStateEnums::ImportLibraryArtifact));
 603
 604   if (config != fileConfig) {
 605     std::string targetOutputFileConfigDir =
 606       cmStrCat(this->GetLocalGenerator()->GetTargetDirectory(genTarget),
 607                globalGen->ConfigDirectory(fileConfig), "/");
 608     targetOutputFileConfigDir =
 609       globalGen->ExpandCFGIntDir(targetOutputDir, fileConfig);
 610     if (targetOutputDir == targetOutputFileConfigDir) {
 611       return;
 612     }
 613
 614     if (!genTarget->GetFullName(config, cmStateEnums::ImportLibraryArtifact)
 615            .empty() &&
 616         !genTarget
 617            ->GetFullName(fileConfig, cmStateEnums::ImportLibraryArtifact)
 618            .empty() &&
 619         targetOutputImplib ==
 620           ConvertToNinjaPath(genTarget->GetFullPath(
 621             fileConfig, cmStateEnums::ImportLibraryArtifact))) {
 622       return;
 623     }
 624   }
 625
 626   if (firstForConfig) {
 627     globalGen->GetByproductsForCleanTarget(config).push_back(targetOutputReal);
 628   }
 629   this->DeviceLinkObject = targetOutputReal;
 630
 631   // Write comments.
 632   cmGlobalNinjaGenerator::WriteDivider(this->GetCommonFileStream());
 633   const cmStateEnums::TargetType targetType = genTarget->GetType();
 634   this->GetCommonFileStream() << "# Device Link build statements for "
 635                               << cmState::GetTargetTypeName(targetType)
 636                               << " target " << this->GetTargetName() << "\n\n";
 637
 638   // Compute the comment.
 639   cmNinjaBuild build(this->LanguageLinkerDeviceRule(config));
 640   build.Comment =
 641     cmStrCat("Link the ", this->GetVisibleTypeName(), ' ', targetOutputReal);
 642
 643   cmNinjaVars& vars = build.Variables;
 644
 645   // Compute outputs.
 646   build.Outputs.push_back(targetOutputReal);
 647   // Compute specific libraries to link with.
 648   build.ExplicitDeps = this->GetObjects(config);
 649   build.ImplicitDeps =
 650     this->ComputeLinkDeps(this->TargetLinkLanguage(config), config);
 651
 652   std::string frameworkPath;
 653   std::string linkPath;
 654
 655   std::string createRule =
 656     genTarget->GetCreateRuleVariable(this->TargetLinkLanguage(config), config);
 657   const bool useWatcomQuote =
 658     this->GetMakefile()->IsOn(createRule + "_USE_WATCOM_QUOTE");
 659   cmLocalNinjaGenerator& localGen = *this->GetLocalGenerator();
 660
 661   vars["TARGET_FILE"] =
 662     localGen.ConvertToOutputFormat(targetOutputReal, cmOutputConverter::SHELL);
 663
 664   std::unique_ptr<cmLinkLineComputer> linkLineComputer(
 665     new cmNinjaLinkLineDeviceComputer(
 666       this->GetLocalGenerator(),
 667       this->GetLocalGenerator()->GetStateSnapshot().GetDirectory(),
 668       globalGen));
 669   linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
 670   linkLineComputer->SetUseNinjaMulti(globalGen->IsMultiConfig());
 671
 672   localGen.GetDeviceLinkFlags(linkLineComputer.get(), config,
 673                               vars["LINK_LIBRARIES"], vars["LINK_FLAGS"],
 674                               frameworkPath, linkPath, genTarget);
 675
 676   this->addPoolNinjaVariable("JOB_POOL_LINK", genTarget, vars);
 677
 678   vars["LINK_FLAGS"] = globalGen->EncodeLiteral(vars["LINK_FLAGS"]);
 679
 680   vars["MANIFESTS"] = this->GetManifests(config);
 681
 682   vars["LINK_PATH"] = frameworkPath + linkPath;
 683
 684   // Compute language specific link flags.
 685   std::string langFlags;
 686   localGen.AddLanguageFlagsForLinking(langFlags, genTarget, cudaLinkLanguage,
 687                                       config);
 688   vars["LANGUAGE_COMPILE_FLAGS"] = langFlags;
 689
 690   auto const tgtNames = this->TargetNames(config);
 691   if (genTarget->HasSOName(config)) {
 692     vars["SONAME_FLAG"] =
 693       this->GetMakefile()->GetSONameFlag(this->TargetLinkLanguage(config));
 694     vars["SONAME"] = tgtNames.SharedObject;
 695     if (targetType == cmStateEnums::SHARED_LIBRARY) {
 696       std::string install_dir =
 697         this->GetGeneratorTarget()->GetInstallNameDirForBuildTree(config);
 698       if (!install_dir.empty()) {
 699         vars["INSTALLNAME_DIR"] = localGen.ConvertToOutputFormat(
 700           install_dir, cmOutputConverter::SHELL);
 701       }
 702     }
 703   }
 704
 705   if (!tgtNames.ImportLibrary.empty()) {
 706     const std::string impLibPath = localGen.ConvertToOutputFormat(
 707       targetOutputImplib, cmOutputConverter::SHELL);
 708     vars["TARGET_IMPLIB"] = impLibPath;
 709     EnsureParentDirectoryExists(impLibPath);
 710   }
 711
 712   const std::string objPath =
 713     cmStrCat(GetGeneratorTarget()->GetSupportDirectory(),
 714              globalGen->ConfigDirectory(config));
 715
 716   vars["OBJECT_DIR"] = this->GetLocalGenerator()->ConvertToOutputFormat(
 717     this->ConvertToNinjaPath(objPath), cmOutputConverter::SHELL);
 718   EnsureDirectoryExists(objPath);
 719
 720   this->SetMsvcTargetPdbVariable(vars, config);
 721
 722   std::string& linkLibraries = vars["LINK_LIBRARIES"];
 723   std::string& link_path = vars["LINK_PATH"];
 724   if (globalGen->IsGCCOnWindows()) {
 725     // ar.exe can't handle backslashes in rsp files (implicitly used by gcc)
 726     std::replace(linkLibraries.begin(), linkLibraries.end(), '\\', '/');
 727     std::replace(link_path.begin(), link_path.end(), '\\', '/');
 728   }
 729
 730   // Device linking currently doesn't support response files so
 731   // do not check if the user has explicitly forced a response file.
 732   int const commandLineLengthLimit =
 733     static_cast<int>(cmSystemTools::CalculateCommandLineLengthLimit()) -
 734     globalGen->GetRuleCmdLength(this->LanguageLinkerDeviceRule(config));
 735
 736   build.RspFile = this->ConvertToNinjaPath(
 737     cmStrCat("CMakeFiles/", genTarget->GetName(),
 738              globalGen->IsMultiConfig() ? cmStrCat('.', config) : "", ".rsp"));
 739
 740   // Gather order-only dependencies.
 741   this->GetLocalGenerator()->AppendTargetDepends(
 742     this->GetGeneratorTarget(), build.OrderOnlyDeps, config, config);
 743
 744   // Write the build statement for this target.
 745   bool usedResponseFile = false;
 746   globalGen->WriteBuild(this->GetCommonFileStream(), build,
 747                         commandLineLengthLimit, &usedResponseFile);
 748   this->WriteDeviceLinkRule(usedResponseFile, config);
 749 }
 750
 751 void cmNinjaNormalTargetGenerator::WriteLinkStatement(
 752   const std::string& config, const std::string& fileConfig,
 753   bool firstForConfig)
 754 {
 755   cmMakefile* mf = this->GetMakefile();
 756   cmGlobalNinjaGenerator* globalGen = this->GetGlobalGenerator();
 757   cmGeneratorTarget* gt = this->GetGeneratorTarget();
 758
 759   std::string targetOutput = ConvertToNinjaPath(gt->GetFullPath(config));
 760   std::string targetOutputReal = ConvertToNinjaPath(
 761     gt->GetFullPath(config, cmStateEnums::RuntimeBinaryArtifact,
 762                     /*realname=*/true));
 763   std::string targetOutputImplib = ConvertToNinjaPath(
 764     gt->GetFullPath(config, cmStateEnums::ImportLibraryArtifact));
 765
 766   if (config != fileConfig) {
 767     if (targetOutput == ConvertToNinjaPath(gt->GetFullPath(fileConfig))) {
 768       return;
 769     }
 770     if (targetOutputReal ==
 771         ConvertToNinjaPath(gt->GetFullPath(fileConfig,
 772                                            cmStateEnums::RuntimeBinaryArtifact,
 773                                            /*realname=*/true))) {
 774       return;
 775     }
 776     if (!gt->GetFullName(config, cmStateEnums::ImportLibraryArtifact)
 777            .empty() &&
 778         !gt->GetFullName(fileConfig, cmStateEnums::ImportLibraryArtifact)
 779            .empty() &&
 780         targetOutputImplib ==
 781           ConvertToNinjaPath(gt->GetFullPath(
 782             fileConfig, cmStateEnums::ImportLibraryArtifact))) {
 783       return;
 784     }
 785   }
 786
 787   auto const tgtNames = this->TargetNames(config);
 788   if (gt->IsAppBundleOnApple()) {
 789     // Create the app bundle
 790     std::string outpath = gt->GetDirectory(config);
 791     this->OSXBundleGenerator->CreateAppBundle(tgtNames.Output, outpath,
 792                                               config);
 793
 794     // Calculate the output path
 795     targetOutput = cmStrCat(outpath, '/', tgtNames.Output);
 796     targetOutput = this->ConvertToNinjaPath(targetOutput);
 797     targetOutputReal = cmStrCat(outpath, '/', tgtNames.Real);
 798     targetOutputReal = this->ConvertToNinjaPath(targetOutputReal);
 799   } else if (gt->IsFrameworkOnApple()) {
 800     // Create the library framework.
 801
 802     cmOSXBundleGenerator::SkipParts bundleSkipParts;
 803     if (globalGen->GetName() == "Ninja Multi-Config") {
 804       const auto postFix = this->GeneratorTarget->GetFilePostfix(config);
 805       // Skip creating Info.plist when there are multiple configurations, and
 806       // the current configuration has a postfix. The non-postfix configuration
 807       // Info.plist can be used by all the other configurations.
 808       if (!postFix.empty()) {
 809         bundleSkipParts.infoPlist = true;
 810       }
 811     }
 812
 813     this->OSXBundleGenerator->CreateFramework(
 814       tgtNames.Output, gt->GetDirectory(config), config, bundleSkipParts);
 815   } else if (gt->IsCFBundleOnApple()) {
 816     // Create the core foundation bundle.
 817     this->OSXBundleGenerator->CreateCFBundle(tgtNames.Output,
 818                                              gt->GetDirectory(config), config);
 819   }
 820
 821   // Write comments.
 822   cmGlobalNinjaGenerator::WriteDivider(this->GetImplFileStream(fileConfig));
 823   const cmStateEnums::TargetType targetType = gt->GetType();
 824   this->GetImplFileStream(fileConfig)
 825     << "# Link build statements for " << cmState::GetTargetTypeName(targetType)
 826     << " target " << this->GetTargetName() << "\n\n";
 827
 828   cmNinjaBuild linkBuild(this->LanguageLinkerRule(config));
 829   cmNinjaVars& vars = linkBuild.Variables;
 830
 831   // Compute the comment.
 832   linkBuild.Comment =
 833     cmStrCat("Link the ", this->GetVisibleTypeName(), ' ', targetOutputReal);
 834
 835   // Compute outputs.
 836   linkBuild.Outputs.push_back(targetOutputReal);
 837   if (firstForConfig) {
 838     globalGen->GetByproductsForCleanTarget(config).push_back(targetOutputReal);
 839   }
 840
 841   if (this->TargetLinkLanguage(config) == "Swift") {
 842     vars["SWIFT_LIBRARY_NAME"] = [this, config]() -> std::string {
 843       cmGeneratorTarget::Names targetNames =
 844         this->GetGeneratorTarget()->GetLibraryNames(config);
 845       return targetNames.Base;
 846     }();
 847
 848     vars["SWIFT_MODULE_NAME"] = [gt]() -> std::string {
 849       if (cmProp name = gt->GetProperty("Swift_MODULE_NAME")) {
 850         return *name;
 851       }
 852       return gt->GetName();
 853     }();
 854
 855     vars["SWIFT_MODULE"] = [this](const std::string& module) -> std::string {
 856       std::string directory =
 857         this->GetLocalGenerator()->GetCurrentBinaryDirectory();
 858       if (cmProp prop = this->GetGeneratorTarget()->GetProperty(
 859             "Swift_MODULE_DIRECTORY")) {
 860         directory = *prop;
 861       }
 862
 863       std::string name = module + ".swiftmodule";
 864       if (cmProp prop =
 865             this->GetGeneratorTarget()->GetProperty("Swift_MODULE")) {
 866         name = *prop;
 867       }
 868
 869       return this->GetLocalGenerator()->ConvertToOutputFormat(
 870         this->ConvertToNinjaPath(directory + "/" + name),
 871         cmOutputConverter::SHELL);
 872     }(vars["SWIFT_MODULE_NAME"]);
 873
 874     const std::string map = cmStrCat(gt->GetSupportDirectory(), '/', config,
 875                                      '/', "output-file-map.json");
 876     vars["SWIFT_OUTPUT_FILE_MAP"] =
 877       this->GetLocalGenerator()->ConvertToOutputFormat(
 878         this->ConvertToNinjaPath(map), cmOutputConverter::SHELL);
 879
 880     vars["SWIFT_SOURCES"] = [this, config]() -> std::string {
 881       std::vector<cmSourceFile const*> sources;
 882       std::stringstream oss;
 883
 884       this->GetGeneratorTarget()->GetObjectSources(sources, config);
 885       cmLocalGenerator const* LocalGen = this->GetLocalGenerator();
 886       for (const auto& source : sources) {
 887         oss << " "
 888             << LocalGen->ConvertToOutputFormat(
 889                  this->ConvertToNinjaPath(this->GetSourceFilePath(source)),
 890                  cmOutputConverter::SHELL);
 891       }
 892       return oss.str();
 893     }();
 894
 895     // Since we do not perform object builds, compute the
 896     // defines/flags/includes here so that they can be passed along
 897     // appropriately.
 898     vars["DEFINES"] = this->GetDefines("Swift", config);
 899     vars["FLAGS"] = this->GetFlags("Swift", config);
 900     vars["INCLUDES"] = this->GetIncludes("Swift", config);
 901   }
 902
 903   // Compute specific libraries to link with.
 904   if (this->TargetLinkLanguage(config) == "Swift") {
 905     std::vector<cmSourceFile const*> sources;
 906     gt->GetObjectSources(sources, config);
 907     for (const auto& source : sources) {
 908       linkBuild.Outputs.push_back(
 909         this->ConvertToNinjaPath(this->GetObjectFilePath(source, config)));
 910       linkBuild.ExplicitDeps.push_back(
 911         this->ConvertToNinjaPath(this->GetSourceFilePath(source)));
 912     }
 913
 914     linkBuild.Outputs.push_back(vars["SWIFT_MODULE"]);
 915   } else {
 916     linkBuild.ExplicitDeps = this->GetObjects(config);
 917   }
 918   linkBuild.ImplicitDeps =
 919     this->ComputeLinkDeps(this->TargetLinkLanguage(config), config);
 920
 921   if (!this->DeviceLinkObject.empty()) {
 922     linkBuild.ExplicitDeps.push_back(this->DeviceLinkObject);
 923   }
 924
 925   std::string frameworkPath;
 926   std::string linkPath;
 927
 928   std::string createRule =
 929     gt->GetCreateRuleVariable(this->TargetLinkLanguage(config), config);
 930   bool useWatcomQuote = mf->IsOn(createRule + "_USE_WATCOM_QUOTE");
 931   cmLocalNinjaGenerator& localGen = *this->GetLocalGenerator();
 932
 933   vars["TARGET_FILE"] =
 934     localGen.ConvertToOutputFormat(targetOutputReal, cmOutputConverter::SHELL);
 935
 936   std::unique_ptr<cmLinkLineComputer> linkLineComputer =
 937     globalGen->CreateLinkLineComputer(
 938       this->GetLocalGenerator(),
 939       this->GetLocalGenerator()->GetStateSnapshot().GetDirectory());
 940   linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
 941   linkLineComputer->SetUseNinjaMulti(globalGen->IsMultiConfig());
 942
 943   localGen.GetTargetFlags(linkLineComputer.get(), config,
 944                           vars["LINK_LIBRARIES"], vars["FLAGS"],
 945                           vars["LINK_FLAGS"], frameworkPath, linkPath, gt);
 946
 947   // Add OS X version flags, if any.
 948   if (this->GeneratorTarget->GetType() == cmStateEnums::SHARED_LIBRARY ||
 949       this->GeneratorTarget->GetType() == cmStateEnums::MODULE_LIBRARY) {
 950     this->AppendOSXVerFlag(vars["LINK_FLAGS"],
 951                            this->TargetLinkLanguage(config), "COMPATIBILITY",
 952                            true);
 953     this->AppendOSXVerFlag(vars["LINK_FLAGS"],
 954                            this->TargetLinkLanguage(config), "CURRENT", false);
 955   }
 956
 957   this->addPoolNinjaVariable("JOB_POOL_LINK", gt, vars);
 958
 959   this->AddModuleDefinitionFlag(linkLineComputer.get(), vars["LINK_FLAGS"],
 960                                 config);
 961   vars["LINK_FLAGS"] = globalGen->EncodeLiteral(vars["LINK_FLAGS"]);
 962
 963   vars["MANIFESTS"] = this->GetManifests(config);
 964   vars["AIX_EXPORTS"] = this->GetAIXExports(config);
 965
 966   vars["LINK_PATH"] = frameworkPath + linkPath;
 967   std::string lwyuFlags;
 968   if (gt->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
 969     lwyuFlags = " -Wl,--no-as-needed";
 970   }
 971
 972   // Compute architecture specific link flags.  Yes, these go into a different
 973   // variable for executables, probably due to a mistake made when duplicating
 974   // code between the Makefile executable and library generators.
 975   if (targetType == cmStateEnums::EXECUTABLE) {
 976     std::string t = vars["FLAGS"];
 977     localGen.AddArchitectureFlags(t, gt, this->TargetLinkLanguage(config),
 978                                   config);
 979     t += lwyuFlags;
 980     vars["FLAGS"] = t;
 981   } else {
 982     std::string t = vars["ARCH_FLAGS"];
 983     localGen.AddArchitectureFlags(t, gt, this->TargetLinkLanguage(config),
 984                                   config);
 985     vars["ARCH_FLAGS"] = t;
 986     t.clear();
 987     t += lwyuFlags;
 988     localGen.AddLanguageFlagsForLinking(
 989       t, gt, this->TargetLinkLanguage(config), config);
 990     vars["LANGUAGE_COMPILE_FLAGS"] = t;
 991   }
 992   if (gt->HasSOName(config)) {
 993     vars["SONAME_FLAG"] = mf->GetSONameFlag(this->TargetLinkLanguage(config));
 994     vars["SONAME"] = tgtNames.SharedObject;
 995     if (targetType == cmStateEnums::SHARED_LIBRARY) {
 996       std::string install_dir = gt->GetInstallNameDirForBuildTree(config);
 997       if (!install_dir.empty()) {
 998         vars["INSTALLNAME_DIR"] = localGen.ConvertToOutputFormat(
 999           install_dir, cmOutputConverter::SHELL);
1000       }
1001     }
1002   }
1003
1004   cmNinjaDeps byproducts;
1005
1006   if (!tgtNames.ImportLibrary.empty()) {
1007     const std::string impLibPath = localGen.ConvertToOutputFormat(
1008       targetOutputImplib, cmOutputConverter::SHELL);
1009     vars["TARGET_IMPLIB"] = impLibPath;
1010     EnsureParentDirectoryExists(impLibPath);
1011     if (gt->HasImportLibrary(config)) {
1012       byproducts.push_back(targetOutputImplib);
1013       if (firstForConfig) {
1014         globalGen->GetByproductsForCleanTarget(config).push_back(
1015           targetOutputImplib);
1016       }
1017     }
1018   }
1019
1020   if (!this->SetMsvcTargetPdbVariable(vars, config)) {
1021     // It is common to place debug symbols at a specific place,
1022     // so we need a plain target name in the rule available.
1023     std::string prefix;
1024     std::string base;
1025     std::string suffix;
1026     gt->GetFullNameComponents(prefix, base, suffix, config);
1027     std::string dbg_suffix = ".dbg";
1028     // TODO: Where to document?
1029     if (auto d = mf->GetDefinition("CMAKE_DEBUG_SYMBOL_SUFFIX")) {
1030       dbg_suffix = d;
1031     }
1032     vars["TARGET_PDB"] = base + suffix + dbg_suffix;
1033   }
1034
1035   const std::string objPath =
1036     cmStrCat(gt->GetSupportDirectory(), globalGen->ConfigDirectory(config));
1037   vars["OBJECT_DIR"] = this->GetLocalGenerator()->ConvertToOutputFormat(
1038     this->ConvertToNinjaPath(objPath), cmOutputConverter::SHELL);
1039   EnsureDirectoryExists(objPath);
1040
1041   std::string& linkLibraries = vars["LINK_LIBRARIES"];
1042   std::string& link_path = vars["LINK_PATH"];
1043   if (globalGen->IsGCCOnWindows()) {
1044     // ar.exe can't handle backslashes in rsp files (implicitly used by gcc)
1045     std::replace(linkLibraries.begin(), linkLibraries.end(), '\\', '/');
1046     std::replace(link_path.begin(), link_path.end(), '\\', '/');
1047   }
1048
1049   const std::vector<cmCustomCommand>* cmdLists[3] = {
1050     &gt->GetPreBuildCommands(), &gt->GetPreLinkCommands(),
1051     &gt->GetPostBuildCommands()
1052   };
1053
1054   std::vector<std::string> preLinkCmdLines;
1055   std::vector<std::string> postBuildCmdLines;
1056
1057   if (config == fileConfig) {
1058     std::vector<std::string>* cmdLineLists[3] = { &preLinkCmdLines,
1059                                                   &preLinkCmdLines,
1060                                                   &postBuildCmdLines };
1061
1062     for (unsigned i = 0; i != 3; ++i) {
1063       for (cmCustomCommand const& cc : *cmdLists[i]) {
1064         cmCustomCommandGenerator ccg(cc, config, this->GetLocalGenerator());
1065         localGen.AppendCustomCommandLines(ccg, *cmdLineLists[i]);
1066         std::vector<std::string> const& ccByproducts = ccg.GetByproducts();
1067         std::transform(ccByproducts.begin(), ccByproducts.end(),
1068                        std::back_inserter(byproducts), MapToNinjaPath());
1069         std::transform(
1070           ccByproducts.begin(), ccByproducts.end(),
1071           std::back_inserter(globalGen->GetByproductsForCleanTarget()),
1072           MapToNinjaPath());
1073       }
1074     }
1075   }
1076
1077   // maybe create .def file from list of objects
1078   cmGeneratorTarget::ModuleDefinitionInfo const* mdi =
1079     gt->GetModuleDefinitionInfo(config);
1080   if (mdi && mdi->DefFileGenerated) {
1081     std::string cmakeCommand =
1082       this->GetLocalGenerator()->ConvertToOutputFormat(
1083         cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
1084     std::string cmd =
1085       cmStrCat(cmakeCommand, " -E __create_def ",
1086                this->GetLocalGenerator()->ConvertToOutputFormat(
1087                  mdi->DefFile, cmOutputConverter::SHELL),
1088                ' ');
1089     std::string obj_list_file = mdi->DefFile + ".objs";
1090     cmd += this->GetLocalGenerator()->ConvertToOutputFormat(
1091       obj_list_file, cmOutputConverter::SHELL);
1092
1093     const char* nm_executable = GetMakefile()->GetDefinition("CMAKE_NM");
1094     if (nm_executable && *nm_executable) {
1095       cmd += " --nm=";
1096       cmd += this->LocalCommonGenerator->ConvertToOutputFormat(
1097         nm_executable, cmOutputConverter::SHELL);
1098     }
1099     preLinkCmdLines.push_back(std::move(cmd));
1100
1101     // create a list of obj files for the -E __create_def to read
1102     cmGeneratedFileStream fout(obj_list_file);
1103
1104     if (mdi->WindowsExportAllSymbols) {
1105       cmNinjaDeps objs = this->GetObjects(config);
1106       for (std::string const& obj : objs) {
1107         if (cmHasLiteralSuffix(obj, ".obj")) {
1108           fout << obj << "\n";
1109         }
1110       }
1111     }
1112
1113     for (cmSourceFile const* src : mdi->Sources) {
1114       fout << src->GetFullPath() << "\n";
1115     }
1116   }
1117   // If we have any PRE_LINK commands, we need to go back to CMAKE_BINARY_DIR
1118   // for the link commands.
1119   if (!preLinkCmdLines.empty()) {
1120     const std::string homeOutDir = localGen.ConvertToOutputFormat(
1121       localGen.GetBinaryDirectory(), cmOutputConverter::SHELL);
1122     preLinkCmdLines.push_back("cd " + homeOutDir);
1123   }
1124
1125   vars["PRE_LINK"] = localGen.BuildCommandLine(preLinkCmdLines, "pre-link",
1126                                                this->GeneratorTarget);
1127   std::string postBuildCmdLine = localGen.BuildCommandLine(
1128     postBuildCmdLines, "post-build", this->GeneratorTarget);
1129
1130   cmNinjaVars symlinkVars;
1131   bool const symlinkNeeded =
1132     (targetOutput != targetOutputReal && !gt->IsFrameworkOnApple());
1133   if (!symlinkNeeded) {
1134     vars["POST_BUILD"] = postBuildCmdLine;
1135   } else {
1136     vars["POST_BUILD"] = cmGlobalNinjaGenerator::SHELL_NOOP;
1137     symlinkVars["POST_BUILD"] = postBuildCmdLine;
1138   }
1139
1140   std::string cmakeVarLang =
1141     cmStrCat("CMAKE_", this->TargetLinkLanguage(config));
1142
1143   // build response file name
1144   std::string cmakeLinkVar = cmakeVarLang + "_RESPONSE_FILE_LINK_FLAG";
1145
1146   const char* flag = GetMakefile()->GetDefinition(cmakeLinkVar);
1147
1148   bool const lang_supports_response =
1149     !(this->TargetLinkLanguage(config) == "RC" ||
1150       (this->TargetLinkLanguage(config) == "CUDA" && !flag));
1151   int commandLineLengthLimit = -1;
1152   if (!lang_supports_response || !this->ForceResponseFile()) {
1153     commandLineLengthLimit =
1154       static_cast<int>(cmSystemTools::CalculateCommandLineLengthLimit()) -
1155       globalGen->GetRuleCmdLength(linkBuild.Rule);
1156   }
1157
1158   linkBuild.RspFile = this->ConvertToNinjaPath(
1159     cmStrCat("CMakeFiles/", gt->GetName(),
1160              globalGen->IsMultiConfig() ? cmStrCat('.', config) : "", ".rsp"));
1161
1162   // Gather order-only dependencies.
1163   this->GetLocalGenerator()->AppendTargetDepends(gt, linkBuild.OrderOnlyDeps,
1164                                                  config, fileConfig);
1165
1166   // Add order-only dependencies on versioning symlinks of shared libs we link.
1167   if (!this->GeneratorTarget->IsDLLPlatform()) {
1168     if (cmComputeLinkInformation* cli =
1169           this->GeneratorTarget->GetLinkInformation(config)) {
1170       for (auto const& item : cli->GetItems()) {
1171         if (item.Target &&
1172             item.Target->GetType() == cmStateEnums::SHARED_LIBRARY &&
1173             !item.Target->IsFrameworkOnApple()) {
1174           std::string const& lib =
1175             this->ConvertToNinjaPath(item.Target->GetFullPath(config));
1176           if (std::find(linkBuild.ImplicitDeps.begin(),
1177                         linkBuild.ImplicitDeps.end(),
1178                         lib) == linkBuild.ImplicitDeps.end()) {
1179             linkBuild.OrderOnlyDeps.emplace_back(lib);
1180           }
1181         }
1182       }
1183     }
1184   }
1185
1186   // Ninja should restat after linking if and only if there are byproducts.
1187   vars["RESTAT"] = byproducts.empty() ? "" : "1";
1188
1189   for (std::string const& o : byproducts) {
1190     globalGen->SeenCustomCommandOutput(o);
1191     linkBuild.Outputs.push_back(o);
1192   }
1193
1194   // Write the build statement for this target.
1195   bool usedResponseFile = false;
1196   globalGen->WriteBuild(this->GetImplFileStream(fileConfig), linkBuild,
1197                         commandLineLengthLimit, &usedResponseFile);
1198   this->WriteLinkRule(usedResponseFile, config);
1199
1200   if (symlinkNeeded) {
1201     if (targetType == cmStateEnums::EXECUTABLE) {
1202       cmNinjaBuild build("CMAKE_SYMLINK_EXECUTABLE");
1203       build.Comment = "Create executable symlink " + targetOutput;
1204       build.Outputs.push_back(targetOutput);
1205       if (firstForConfig) {
1206         globalGen->GetByproductsForCleanTarget(config).push_back(targetOutput);
1207       }
1208       build.ExplicitDeps.push_back(targetOutputReal);
1209       build.Variables = std::move(symlinkVars);
1210       globalGen->WriteBuild(this->GetImplFileStream(fileConfig), build);
1211     } else {
1212       cmNinjaBuild build("CMAKE_SYMLINK_LIBRARY");
1213       build.Comment = "Create library symlink " + targetOutput;
1214
1215       std::string const soName = this->ConvertToNinjaPath(
1216         this->GetTargetFilePath(tgtNames.SharedObject, config));
1217       // If one link has to be created.
1218       if (targetOutputReal == soName || targetOutput == soName) {
1219         symlinkVars["SONAME"] =
1220           this->GetLocalGenerator()->ConvertToOutputFormat(
1221             soName, cmOutputConverter::SHELL);
1222       } else {
1223         symlinkVars["SONAME"].clear();
1224         build.Outputs.push_back(soName);
1225         if (firstForConfig) {
1226           globalGen->GetByproductsForCleanTarget(config).push_back(soName);
1227         }
1228       }
1229       build.Outputs.push_back(targetOutput);
1230       if (firstForConfig) {
1231         globalGen->GetByproductsForCleanTarget(config).push_back(targetOutput);
1232       }
1233       build.ExplicitDeps.push_back(targetOutputReal);
1234       build.Variables = std::move(symlinkVars);
1235
1236       globalGen->WriteBuild(this->GetImplFileStream(fileConfig), build);
1237     }
1238   }
1239
1240   // Add aliases for the file name and the target name.
1241   globalGen->AddTargetAlias(tgtNames.Output, gt, config);
1242   globalGen->AddTargetAlias(this->GetTargetName(), gt, config);
1243 }
1244
1245 void cmNinjaNormalTargetGenerator::WriteObjectLibStatement(
1246   const std::string& config)
1247 {
1248   // Write a phony output that depends on all object files.
1249   {
1250     cmNinjaBuild build("phony");
1251     build.Comment = "Object library " + this->GetTargetName();
1252     this->GetLocalGenerator()->AppendTargetOutputs(this->GetGeneratorTarget(),
1253                                                    build.Outputs, config);
1254     this->GetLocalGenerator()->AppendTargetOutputs(
1255       this->GetGeneratorTarget(),
1256       this->GetGlobalGenerator()->GetByproductsForCleanTarget(config), config);
1257     build.ExplicitDeps = this->GetObjects(config);
1258     this->GetGlobalGenerator()->WriteBuild(this->GetCommonFileStream(), build);
1259   }
1260
1261   // Add aliases for the target name.
1262   this->GetGlobalGenerator()->AddTargetAlias(
1263     this->GetTargetName(), this->GetGeneratorTarget(), config);
1264 }
1265
1266 cmGeneratorTarget::Names cmNinjaNormalTargetGenerator::TargetNames(
1267   const std::string& config) const
1268 {
1269   if (this->GeneratorTarget->GetType() == cmStateEnums::EXECUTABLE) {
1270     return this->GeneratorTarget->GetExecutableNames(config);
1271   }
1272   return this->GeneratorTarget->GetLibraryNames(config);
1273 }
1274
1275 std::string cmNinjaNormalTargetGenerator::TargetLinkLanguage(
1276   const std::string& config) const
1277 {
1278   return this->GeneratorTarget->GetLinkerLanguage(config);
1279 }