diff options
19 files changed, 345 insertions, 54 deletions
diff --git a/Help/command/target_precompile_headers.rst b/Help/command/target_precompile_headers.rst index 3e28265..7d36b11 100644 --- a/Help/command/target_precompile_headers.rst +++ b/Help/command/target_precompile_headers.rst @@ -9,9 +9,23 @@ Add a list of header files to precompile. <INTERFACE|PUBLIC|PRIVATE> [header1...] [<INTERFACE|PUBLIC|PRIVATE> [header2...] ...]) + target_precompile_headers(<target> REUSE_FROM <other_target>) + Adds header files to :prop_tgt:`PRECOMPILE_HEADERS` or :prop_tgt:`INTERFACE_PRECOMPILE_HEADERS` target properties. +The second signature will reuse an already precompiled header file artefact +from another target. This is done by setting the +:prop_tgt:`PRECOMPILE_HEADERS_REUSE_FROM` to ``<other_target>`` value. +The ``<other_target>`` will become a dependency of ``<target>``. + +.. note:: + + The second signature will require the same set of compiler options, + compiler flags, compiler definitions for both ``<target>``, and + ``<other_target>``. Compilers (e.g. GCC) will issue a warning if the + precompiled header file cannot be used (``-Winvalid-pch``). + Precompiling header files can speed up compilation by creating a partially processed version of some header files, and then using that version during compilations rather than repeatedly parsing the original headers. diff --git a/Help/manual/cmake-properties.7.rst b/Help/manual/cmake-properties.7.rst index 19afb7d..0928abe 100644 --- a/Help/manual/cmake-properties.7.rst +++ b/Help/manual/cmake-properties.7.rst @@ -298,6 +298,7 @@ Properties on Targets /prop_tgt/PDB_OUTPUT_DIRECTORY /prop_tgt/POSITION_INDEPENDENT_CODE /prop_tgt/PRECOMPILE_HEADERS + /prop_tgt/PRECOMPILE_HEADERS_REUSE_FROM /prop_tgt/PREFIX /prop_tgt/PRIVATE_HEADER /prop_tgt/PROJECT_LABEL diff --git a/Help/prop_tgt/PRECOMPILE_HEADERS_REUSE_FROM.rst b/Help/prop_tgt/PRECOMPILE_HEADERS_REUSE_FROM.rst new file mode 100644 index 0000000..d740303 --- /dev/null +++ b/Help/prop_tgt/PRECOMPILE_HEADERS_REUSE_FROM.rst @@ -0,0 +1,7 @@ +PRECOMPILE_HEADERS_REUSE_FROM +----------------------------- + +Target from which to reuse the precomipled headers build artifact. + +See the second signature of :command:`target_precompile_headers` command +for more detailed information. diff --git a/Modules/Platform/Windows-MSVC.cmake b/Modules/Platform/Windows-MSVC.cmake index 6ddcaa3..34f5d03 100644 --- a/Modules/Platform/Windows-MSVC.cmake +++ b/Modules/Platform/Windows-MSVC.cmake @@ -333,10 +333,17 @@ macro(__windows_compiler_msvc lang) set(CMAKE_LINK_PCH ON) if(MSVC_VERSION GREATER_EQUAL 1910) # VS 2017 or greater - set(CMAKE_PCH_PROLOGUE "#pragma system_header") + if (NOT ${CMAKE_${lang}_COMPILER_ID} STREQUAL "Clang") + set(CMAKE_PCH_PROLOGUE "#pragma system_header") + else() + set(CMAKE_PCH_PROLOGUE "#pragma clang system_header") + endif() + endif() + if (NOT ${CMAKE_${lang}_COMPILER_ID} STREQUAL "Clang") + set(CMAKE_PCH_COPY_COMPILE_PDB ON) endif() - set(CMAKE_${lang}_COMPILE_OPTIONS_USE_PCH /Yu<PCH_HEADER> /FI<PCH_HEADER>) - set(CMAKE_${lang}_COMPILE_OPTIONS_CREATE_PCH /Yc<PCH_HEADER> /FI<PCH_HEADER>) + set(CMAKE_${lang}_COMPILE_OPTIONS_USE_PCH /Yu<PCH_HEADER> /Fp<PCH_FILE> /FI<PCH_HEADER>) + set(CMAKE_${lang}_COMPILE_OPTIONS_CREATE_PCH /Yc<PCH_HEADER> /Fp<PCH_FILE> /FI<PCH_HEADER>) if("x${CMAKE_${lang}_COMPILER_ID}" STREQUAL "xMSVC") set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES) diff --git a/Source/cmCommonTargetGenerator.cxx b/Source/cmCommonTargetGenerator.cxx index 33286ad..19a096b 100644 --- a/Source/cmCommonTargetGenerator.cxx +++ b/Source/cmCommonTargetGenerator.cxx @@ -171,6 +171,7 @@ std::string cmCommonTargetGenerator::ComputeTargetCompilePDB() const if (this->GeneratorTarget->GetType() > cmStateEnums::OBJECT_LIBRARY) { return compilePdbPath; } + compilePdbPath = this->GeneratorTarget->GetCompilePDBPath(this->GetConfigName()); if (compilePdbPath.empty()) { diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx index 2ca5706..3a321c5 100644 --- a/Source/cmGeneratorTarget.cxx +++ b/Source/cmGeneratorTarget.cxx @@ -35,6 +35,7 @@ #include "cmRange.h" #include "cmSourceFile.h" #include "cmSourceFileLocation.h" +#include "cmSourceFileLocationKind.h" #include "cmState.h" #include "cmStringAlgorithms.h" #include "cmSystemTools.h" @@ -3371,57 +3372,67 @@ std::string cmGeneratorTarget::GetPchHeader(const std::string& config, } std::string& filename = inserted.first->second; + const cmGeneratorTarget* generatorTarget = this; + const char* pchReuseFrom = + generatorTarget->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM"); + if (pchReuseFrom) { + generatorTarget = + this->GetGlobalGenerator()->FindGeneratorTarget(pchReuseFrom); + } + if (this->GetGlobalGenerator()->IsMultiConfig()) { - filename = - cmStrCat(this->LocalGenerator->GetCurrentBinaryDirectory(), "/"); + filename = cmStrCat( + generatorTarget->LocalGenerator->GetCurrentBinaryDirectory(), "/"); } else { // For GCC we need to have the header file .h[xx] // next to the .h[xx].gch file - filename = this->ObjectDirectory; + filename = generatorTarget->ObjectDirectory; } - filename = cmStrCat(filename, "CMakeFiles/", this->GetName(), + filename = cmStrCat(filename, "CMakeFiles/", generatorTarget->GetName(), ".dir/cmake_pch", ((language == "C") ? ".h" : ".hxx")); const std::string filename_tmp = cmStrCat(filename, ".tmp"); - { + if (!pchReuseFrom) { auto pchPrologue = this->Makefile->GetDefinition("CMAKE_PCH_PROLOGUE"); auto pchEpilogue = this->Makefile->GetDefinition("CMAKE_PCH_EPILOGUE"); - cmGeneratedFileStream file( - filename_tmp, false, - this->GetGlobalGenerator()->GetMakefileEncoding()); - file << "/* generated by CMake */\n\n"; - if (pchPrologue) { - file << pchPrologue << "\n"; - } - if (this->GetGlobalGenerator()->IsXcode()) { - file << "#ifndef CMAKE_SKIP_PRECOMPILE_HEADERS\n"; - } - if (language == "CXX") { - file << "#ifdef __cplusplus\n"; - } - for (auto const& header_bt : headers) { - if (header_bt.Value.empty()) { - continue; + { + cmGeneratedFileStream file( + filename_tmp, false, + this->GetGlobalGenerator()->GetMakefileEncoding()); + file << "/* generated by CMake */\n\n"; + if (pchPrologue) { + file << pchPrologue << "\n"; } - if (header_bt.Value[0] == '<' || header_bt.Value[0] == '"') { - file << "#include " << header_bt.Value << "\n"; - } else { - file << "#include \"" << header_bt.Value << "\"\n"; + if (this->GetGlobalGenerator()->IsXcode()) { + file << "#ifndef CMAKE_SKIP_PRECOMPILE_HEADERS\n"; + } + if (language == "CXX") { + file << "#ifdef __cplusplus\n"; + } + for (auto const& header_bt : headers) { + if (header_bt.Value.empty()) { + continue; + } + if (header_bt.Value[0] == '<' || header_bt.Value[0] == '\"') { + file << "#include " << header_bt.Value << "\n"; + } else { + file << "#include \"" << header_bt.Value << "\"\n"; + } + } + if (language == "CXX") { + file << "#endif // __cplusplus\n"; + } + if (this->GetGlobalGenerator()->IsXcode()) { + file << "#endif // CMAKE_SKIP_PRECOMPILE_HEADERS\n"; + } + if (pchEpilogue) { + file << pchEpilogue << "\n"; } } - if (language == "CXX") { - file << "#endif // __cplusplus\n"; - } - if (this->GetGlobalGenerator()->IsXcode()) { - file << "#endif // CMAKE_SKIP_PRECOMPILE_HEADERS\n"; - } - if (pchEpilogue) { - file << pchEpilogue << "\n"; - } + cmSystemTools::MoveFileIfDifferent(filename_tmp, filename); } - cmSystemTools::MoveFileIfDifferent(filename_tmp, filename); } return inserted.first->second; } @@ -3440,8 +3451,18 @@ std::string cmGeneratorTarget::GetPchSource(const std::string& config, return std::string(); } std::string& filename = inserted.first->second; - filename = cmStrCat(this->LocalGenerator->GetCurrentBinaryDirectory(), - "/CMakeFiles/", this->GetName(), ".dir/cmake_pch"); + + const cmGeneratorTarget* generatorTarget = this; + const char* pchReuseFrom = + generatorTarget->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM"); + if (pchReuseFrom) { + generatorTarget = + this->GetGlobalGenerator()->FindGeneratorTarget(pchReuseFrom); + } + + filename = + cmStrCat(generatorTarget->LocalGenerator->GetCurrentBinaryDirectory(), + "/CMakeFiles/", generatorTarget->GetName(), ".dir/cmake_pch"); // For GCC the source extension will be tranformed into .h[xx].gch if (!this->Makefile->IsOn("CMAKE_LINK_PCH")) { @@ -3449,12 +3470,40 @@ std::string cmGeneratorTarget::GetPchSource(const std::string& config, } else { filename += ((language == "C") ? ".c" : ".cxx"); } + const std::string filename_tmp = cmStrCat(filename, ".tmp"); - { - cmGeneratedFileStream file(filename_tmp); - file << "/* generated by CMake */\n"; + if (!pchReuseFrom) { + { + cmGeneratedFileStream file(filename_tmp); + file << "/* generated by CMake */\n"; + } + cmSystemTools::MoveFileIfDifferent(filename_tmp, filename); } - cmSystemTools::MoveFileIfDifferent(filename_tmp, filename); + } + return inserted.first->second; +} + +std::string cmGeneratorTarget::GetPchFileObject(const std::string& config, + const std::string& language) +{ + if (language != "C" && language != "CXX") { + return std::string(); + } + const auto inserted = + this->PchObjectFiles.insert(std::make_pair(language + config, "")); + if (inserted.second) { + const std::string pchSource = this->GetPchSource(config, language); + if (pchSource.empty()) { + return std::string(); + } + std::string& filename = inserted.first->second; + + this->AddSource(pchSource, true); + + auto pchSf = this->Makefile->GetOrCreateSource( + pchSource, false, cmSourceFileLocationKind::Known); + + filename = cmStrCat(this->ObjectDirectory, this->GetObjectName(pchSf)); } return inserted.first->second; } diff --git a/Source/cmGeneratorTarget.h b/Source/cmGeneratorTarget.h index 4207d65..6c36c4b 100644 --- a/Source/cmGeneratorTarget.h +++ b/Source/cmGeneratorTarget.h @@ -462,6 +462,8 @@ public: const std::string& language) const; std::string GetPchSource(const std::string& config, const std::string& language) const; + std::string GetPchFileObject(const std::string& config, + const std::string& language); bool IsSystemIncludeDirectory(const std::string& dir, const std::string& config, @@ -880,6 +882,7 @@ private: mutable std::set<std::string> LinkImplicitNullProperties; mutable std::map<std::string, std::string> PchHeaders; mutable std::map<std::string, std::string> PchSources; + mutable std::map<std::string, std::string> PchObjectFiles; void ExpandLinkItems(std::string const& prop, std::string const& value, std::string const& config, diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx index 5bbb83c..afcd69f 100644 --- a/Source/cmLocalGenerator.cxx +++ b/Source/cmLocalGenerator.cxx @@ -4,7 +4,9 @@ #include "cmAlgorithms.h" #include "cmComputeLinkInformation.h" +#include "cmCustomCommand.h" #include "cmCustomCommandGenerator.h" +#include "cmCustomCommandLines.h" #include "cmGeneratedFileStream.h" #include "cmGeneratorExpression.h" #include "cmGeneratorExpressionEvaluationFile.h" @@ -2255,23 +2257,124 @@ void cmLocalGenerator::AddPchDependencies(cmGeneratorTarget* target, return; } + const char* pchReuseFrom = + target->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM"); + auto pch_sf = this->Makefile->GetOrCreateSource( pchSource, false, cmSourceFileLocationKind::Known); std::string pchFile = pchHeader; if (!this->GetGlobalGenerator()->IsXcode()) { + if (!pchReuseFrom) { + target->AddSource(pchSource, true); + } + // Exclude the pch files from linking if (this->Makefile->IsOn("CMAKE_LINK_PCH")) { - cmSystemTools::ReplaceString(pchFile, (lang == "C" ? ".h" : ".hxx"), - pchExtension); - pch_sf->SetProperty("OBJECT_OUTPUTS", pchFile.c_str()); + + auto replaceExtension = [](const std::string& str, + const std::string& ext) -> std::string { + auto dot_pos = str.rfind('.'); + std::string result; + if (dot_pos != std::string::npos) { + result = str.substr(0, dot_pos); + } + result += ext; + return result; + }; + + if (!pchReuseFrom) { + std::string pchSourceObj = target->GetPchFileObject(config, lang); + + pchFile = replaceExtension(pchSourceObj, pchExtension); + pch_sf->SetProperty("OBJECT_OUTPUTS", pchFile.c_str()); + } else { + auto reuseTarget = + this->GlobalGenerator->FindGeneratorTarget(pchReuseFrom); + + if (this->Makefile->IsOn("CMAKE_PCH_COPY_COMPILE_PDB")) { + + const std::string pdb_prefix = + this->GetGlobalGenerator()->IsMultiConfig() + ? cmStrCat(this->GlobalGenerator->GetCMakeCFGIntDir(), "/") + : ""; + + const std::string target_compile_pdb_dir = + cmStrCat(target->GetLocalGenerator()->GetCurrentBinaryDirectory(), + "/", target->GetName(), ".dir/"); + + const std::string copy_script = + cmStrCat(target_compile_pdb_dir, "copy_idb_pdb.cmake"); + cmGeneratedFileStream file(copy_script); + + file << "# CMake generated file\n"; + for (auto extension : { ".pdb", ".idb" }) { + const std::string from_file = cmStrCat( + reuseTarget->GetLocalGenerator()->GetCurrentBinaryDirectory(), + "/", pchReuseFrom, ".dir/${PDB_PREFIX}", pchReuseFrom, + extension); + + const std::string to_dir = cmStrCat( + target->GetLocalGenerator()->GetCurrentBinaryDirectory(), "/", + target->GetName(), ".dir/${PDB_PREFIX}"); + + file << "if (EXISTS \"" << from_file << "\")\n"; + file << " file(COPY \"" << from_file << "\"" + << " DESTINATION \"" << to_dir << "\")\n"; + file << "endif()\n"; + } + + cmCustomCommandLines commandLines; + cmCustomCommandLine currentLine; + currentLine.push_back(cmSystemTools::GetCMakeCommand()); + currentLine.push_back(cmStrCat("-DPDB_PREFIX=", pdb_prefix)); + currentLine.push_back("-P"); + currentLine.push_back(copy_script); + commandLines.push_back(std::move(currentLine)); + + const std::string no_main_dependency; + const std::vector<std::string> no_deps; + const char* no_message = ""; + const char* no_current_dir = nullptr; + std::vector<std::string> no_byproducts; + + std::vector<std::string> outputs; + outputs.push_back(cmStrCat(target_compile_pdb_dir, pdb_prefix, + pchReuseFrom, ".pdb")); + + if (this->GetGlobalGenerator()->IsMultiConfig()) { + this->Makefile->AddCustomCommandToTarget( + target->GetName(), outputs, no_deps, commandLines, + cmTarget::PRE_BUILD, no_message, no_current_dir); + } else { + cmImplicitDependsList no_implicit_depends; + cmSourceFile* copy_rule = this->Makefile->AddCustomCommandToOutput( + outputs, no_byproducts, no_deps, no_main_dependency, + no_implicit_depends, commandLines, no_message, no_current_dir); + + if (copy_rule) { + target->AddSource(copy_rule->ResolveFullPath()); + } + } + + target->Target->SetProperty("COMPILE_PDB_OUTPUT_DIRECTORY", + target_compile_pdb_dir.c_str()); + } + + std::string pchSourceObj = reuseTarget->GetPchFileObject(config, lang); + + // Link to the pch object file + target->Target->SetProperty( + "LINK_FLAGS", + this->ConvertToOutputFormat(pchSourceObj, SHELL).c_str()); + + pchFile = replaceExtension(pchSourceObj, pchExtension); + } } else { pchFile += pchExtension; pch_sf->SetProperty("PCH_EXTENSION", pchExtension.c_str()); } - target->AddSource(pchSource, true); - for (auto& str : { std::ref(useOptionList), std::ref(createOptionList) }) { cmSystemTools::ReplaceString(str, "<PCH_HEADER>", pchHeader); cmSystemTools::ReplaceString(str, "<PCH_FILE>", pchFile); diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx index 6637e32..e65fb25 100644 --- a/Source/cmTarget.cxx +++ b/Source/cmTarget.cxx @@ -1085,6 +1085,7 @@ void cmTarget::SetProperty(const std::string& prop, const char* value) MAKE_STATIC_PROP(COMPILE_FEATURES); MAKE_STATIC_PROP(COMPILE_OPTIONS); MAKE_STATIC_PROP(PRECOMPILE_HEADERS); + MAKE_STATIC_PROP(PRECOMPILE_HEADERS_REUSE_FROM); MAKE_STATIC_PROP(CUDA_PTX_COMPILATION); MAKE_STATIC_PROP(EXPORT_NAME); MAKE_STATIC_PROP(IMPORTED_GLOBAL); @@ -1231,6 +1232,41 @@ void cmTarget::SetProperty(const std::string& prop, const char* value) << impl->Name << "\")\n"; impl->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str()); return; + } else if (prop == propPRECOMPILE_HEADERS_REUSE_FROM) { + if (this->GetProperty("PRECOMPILE_HEADERS")) { + std::ostringstream e; + e << "PRECOMPILE_HEADERS property is already set on target (\"" + << impl->Name << "\")\n"; + impl->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str()); + return; + } + auto reusedTarget = + impl->Makefile->GetCMakeInstance()->GetGlobalGenerator()->FindTarget( + value); + if (!reusedTarget) { + const std::string e( + "PRECOMPILE_HEADERS_REUSE_FROM set with non existing target"); + impl->Makefile->IssueMessage(MessageType::FATAL_ERROR, e); + return; + } + + std::string reusedFrom = reusedTarget->GetSafeProperty(prop); + if (reusedFrom.empty()) { + reusedFrom = value; + } + + impl->Properties.SetProperty(prop, reusedFrom.c_str()); + + reusedTarget->SetProperty("COMPILE_PDB_NAME", reusedFrom.c_str()); + reusedTarget->SetProperty("COMPILE_PDB_OUTPUT_DIRECTORY", + cmStrCat(reusedFrom, ".dir/").c_str()); + + for (auto p : { "COMPILE_PDB_NAME", "PRECOMPILE_HEADERS", + "INTERFACE_PRECOMPILE_HEADERS" }) { + this->SetProperty(p, reusedTarget->GetProperty(p)); + } + + this->AddUtility(reusedFrom, impl->Makefile); } else { impl->Properties.SetProperty(prop, value); } @@ -1308,6 +1344,14 @@ void cmTarget::AppendProperty(const std::string& prop, const char* value, impl->LinkDirectoriesBacktraces.push_back(lfbt); } } else if (prop == "PRECOMPILE_HEADERS") { + if (this->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM")) { + std::ostringstream e; + e << "PRECOMPILE_HEADERS_REUSE_FROM property is already set on target " + "(\"" + << impl->Name << "\")\n"; + impl->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str()); + return; + } if (value && *value) { impl->PrecompileHeadersEntries.emplace_back(value); cmListFileBacktrace lfbt = impl->Makefile->GetBacktrace(); diff --git a/Source/cmTargetPrecompileHeadersCommand.cxx b/Source/cmTargetPrecompileHeadersCommand.cxx index 30cf1be..97f1bea 100644 --- a/Source/cmTargetPrecompileHeadersCommand.cxx +++ b/Source/cmTargetPrecompileHeadersCommand.cxx @@ -10,7 +10,7 @@ bool cmTargetPrecompileHeadersCommand::InitialPass( std::vector<std::string> const& args, cmExecutionStatus&) { - return this->HandleArguments(args, "PRECOMPILE_HEADERS"); + return this->HandleArguments(args, "PRECOMPILE_HEADERS", PROCESS_REUSE_FROM); } void cmTargetPrecompileHeadersCommand::HandleMissingTarget( diff --git a/Source/cmTargetPropCommandBase.cxx b/Source/cmTargetPropCommandBase.cxx index 3aa845c..4bc3125 100644 --- a/Source/cmTargetPropCommandBase.cxx +++ b/Source/cmTargetPropCommandBase.cxx @@ -65,6 +65,19 @@ bool cmTargetPropCommandBase::HandleArguments( ++argIndex; } + if ((flags & PROCESS_REUSE_FROM) && args[argIndex] == "REUSE_FROM") { + if (args.size() != 3) { + this->SetError("called with incorrect number of arguments"); + return false; + } + ++argIndex; + + this->Target->SetProperty("PRECOMPILE_HEADERS_REUSE_FROM", + args[argIndex].c_str()); + + ++argIndex; + } + this->Property = prop; while (argIndex < args.size()) { diff --git a/Source/cmTargetPropCommandBase.h b/Source/cmTargetPropCommandBase.h index 943285d..b244417 100644 --- a/Source/cmTargetPropCommandBase.h +++ b/Source/cmTargetPropCommandBase.h @@ -17,9 +17,10 @@ class cmTargetPropCommandBase : public cmCommand public: enum ArgumentFlags { - NO_FLAGS = 0, - PROCESS_BEFORE = 1, - PROCESS_SYSTEM = 2 + NO_FLAGS = 0x0, + PROCESS_BEFORE = 0x1, + PROCESS_SYSTEM = 0x2, + PROCESS_REUSE_FROM = 0x3 }; bool HandleArguments(std::vector<std::string> const& args, diff --git a/Tests/RunCMake/PrecompileHeaders/PchReuseFrom.cmake b/Tests/RunCMake/PrecompileHeaders/PchReuseFrom.cmake new file mode 100644 index 0000000..4502456 --- /dev/null +++ b/Tests/RunCMake/PrecompileHeaders/PchReuseFrom.cmake @@ -0,0 +1,20 @@ +cmake_minimum_required(VERSION 3.15) +project(PchReuseFrom C) + +add_library(empty empty.c) +target_precompile_headers(empty PUBLIC + <stdio.h> + <string.h> +) +target_include_directories(empty PUBLIC include) + +add_library(foo foo.c) +target_include_directories(foo PUBLIC include) +target_precompile_headers(foo REUSE_FROM empty) + +add_executable(foobar foobar.c) +target_link_libraries(foobar foo ) +set_target_properties(foobar PROPERTIES PRECOMPILE_HEADERS_REUSE_FROM foo) + +enable_testing() +add_test(NAME foobar COMMAND foobar) diff --git a/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir-build-stderr.txt b/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir-build-stderr.txt new file mode 100644 index 0000000..8cdcfd9 --- /dev/null +++ b/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir-build-stderr.txt @@ -0,0 +1,2 @@ +^(|Warning #670: precompiled header file [^ +]* was not generated in this directory)$ diff --git a/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir.cmake b/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir.cmake new file mode 100644 index 0000000..fff74dc --- /dev/null +++ b/Tests/RunCMake/PrecompileHeaders/PchReuseFromSubdir.cmake @@ -0,0 +1,18 @@ +cmake_minimum_required(VERSION 3.15) +project(PchReuseFromSubdir C) + +add_library(empty empty.c) +target_precompile_headers(empty PUBLIC + <stdio.h> + <string.h> +) +target_include_directories(empty PUBLIC include) + +add_library(foo foo.c) +target_include_directories(foo PUBLIC include) +target_precompile_headers(foo REUSE_FROM empty) + +subdirs(subdir) + +enable_testing() +add_test(NAME foobar COMMAND foobar) diff --git a/Tests/RunCMake/PrecompileHeaders/RunCMakeTest.cmake b/Tests/RunCMake/PrecompileHeaders/RunCMakeTest.cmake index fffcc47..bd3b1b8 100644 --- a/Tests/RunCMake/PrecompileHeaders/RunCMakeTest.cmake +++ b/Tests/RunCMake/PrecompileHeaders/RunCMakeTest.cmake @@ -16,3 +16,5 @@ run_cmake(DisabledPch) run_test(PchInterface) run_cmake(PchPrologueEpilogue) run_test(SkipPrecompileHeaders) +run_test(PchReuseFrom) +run_test(PchReuseFromSubdir) diff --git a/Tests/RunCMake/PrecompileHeaders/empty.c b/Tests/RunCMake/PrecompileHeaders/empty.c new file mode 100644 index 0000000..30ae1c4 --- /dev/null +++ b/Tests/RunCMake/PrecompileHeaders/empty.c @@ -0,0 +1,3 @@ +void nothing() +{ +} diff --git a/Tests/RunCMake/PrecompileHeaders/include/foo.h b/Tests/RunCMake/PrecompileHeaders/include/foo.h index 4a49474..fc0ae14 100644 --- a/Tests/RunCMake/PrecompileHeaders/include/foo.h +++ b/Tests/RunCMake/PrecompileHeaders/include/foo.h @@ -1,6 +1,6 @@ #ifndef foo_h #define foo_h -extern int foo(); +int foo(void); #endif diff --git a/Tests/RunCMake/PrecompileHeaders/subdir/CMakeLists.txt b/Tests/RunCMake/PrecompileHeaders/subdir/CMakeLists.txt new file mode 100644 index 0000000..fa926c4 --- /dev/null +++ b/Tests/RunCMake/PrecompileHeaders/subdir/CMakeLists.txt @@ -0,0 +1,3 @@ +add_executable(foobar ../foobar.c) +target_link_libraries(foobar foo ) +set_target_properties(foobar PROPERTIES PRECOMPILE_HEADERS_REUSE_FROM foo) |