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1504 lines
58 KiB
1504 lines
58 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmCoreTryCompile.h"
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#include <array>
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#include <cstdio>
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#include <cstring>
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#include <set>
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#include <sstream>
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#include <utility>
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#include <cm/string_view>
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#include <cmext/string_view>
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#include "cmsys/Directory.hxx"
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#include "cmsys/FStream.hxx"
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#include "cmsys/RegularExpression.hxx"
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#include "cmArgumentParser.h"
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#include "cmConfigureLog.h"
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#include "cmExperimental.h"
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#include "cmExportTryCompileFileGenerator.h"
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#include "cmGlobalGenerator.h"
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#include "cmList.h"
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#include "cmMakefile.h"
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#include "cmMessageType.h"
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#include "cmOutputConverter.h"
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#include "cmPolicies.h"
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#include "cmRange.h"
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#include "cmState.h"
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#include "cmStringAlgorithms.h"
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#include "cmSystemTools.h"
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#include "cmTarget.h"
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#include "cmValue.h"
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#include "cmVersion.h"
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#include "cmake.h"
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namespace {
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constexpr const char* unique_binary_directory = "CMAKE_BINARY_DIR_USE_MKDTEMP";
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constexpr size_t lang_property_start = 0;
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constexpr size_t lang_property_size = 4;
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constexpr size_t pie_property_start = 4;
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constexpr size_t pie_property_size = 2;
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/* clang-format off */
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#define SETUP_LANGUAGE(name, lang) \
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static const std::string name[lang_property_size + pie_property_size + 1] = \
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{ "CMAKE_" #lang "_COMPILER_EXTERNAL_TOOLCHAIN", \
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"CMAKE_" #lang "_COMPILER_TARGET", \
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"CMAKE_" #lang "_LINK_NO_PIE_SUPPORTED", \
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"CMAKE_" #lang "_PIE_SUPPORTED", "" }
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/* clang-format on */
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(c_properties, C);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(cxx_properties, CXX);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(cuda_properties, CUDA);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(fortran_properties, Fortran);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(hip_properties, HIP);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(objc_properties, OBJC);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(objcxx_properties, OBJCXX);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(ispc_properties, ISPC);
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// NOLINTNEXTLINE(bugprone-suspicious-missing-comma)
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SETUP_LANGUAGE(swift_properties, Swift);
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#undef SETUP_LANGUAGE
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std::string const kCMAKE_CUDA_ARCHITECTURES = "CMAKE_CUDA_ARCHITECTURES";
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std::string const kCMAKE_CUDA_RUNTIME_LIBRARY = "CMAKE_CUDA_RUNTIME_LIBRARY";
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std::string const kCMAKE_CXX_SCAN_FOR_MODULES = "CMAKE_CXX_SCAN_FOR_MODULES";
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std::string const kCMAKE_ENABLE_EXPORTS = "CMAKE_ENABLE_EXPORTS";
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std::string const kCMAKE_EXECUTABLE_ENABLE_EXPORTS =
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"CMAKE_EXECUTABLE_ENABLE_EXPORTS";
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std::string const kCMAKE_SHARED_LIBRARY_ENABLE_EXPORTS =
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"CMAKE_SHARED_LIBRARY_ENABLE_EXPORTS";
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std::string const kCMAKE_HIP_ARCHITECTURES = "CMAKE_HIP_ARCHITECTURES";
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std::string const kCMAKE_HIP_PLATFORM = "CMAKE_HIP_PLATFORM";
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std::string const kCMAKE_HIP_RUNTIME_LIBRARY = "CMAKE_HIP_RUNTIME_LIBRARY";
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std::string const kCMAKE_ISPC_INSTRUCTION_SETS = "CMAKE_ISPC_INSTRUCTION_SETS";
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std::string const kCMAKE_ISPC_HEADER_SUFFIX = "CMAKE_ISPC_HEADER_SUFFIX";
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std::string const kCMAKE_LINKER_TYPE = "CMAKE_LINKER_TYPE";
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std::string const kCMAKE_LINK_SEARCH_END_STATIC =
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"CMAKE_LINK_SEARCH_END_STATIC";
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std::string const kCMAKE_LINK_SEARCH_START_STATIC =
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"CMAKE_LINK_SEARCH_START_STATIC";
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std::string const kCMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT =
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"CMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT";
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std::string const kCMAKE_OSX_ARCHITECTURES = "CMAKE_OSX_ARCHITECTURES";
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std::string const kCMAKE_OSX_DEPLOYMENT_TARGET = "CMAKE_OSX_DEPLOYMENT_TARGET";
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std::string const kCMAKE_OSX_SYSROOT = "CMAKE_OSX_SYSROOT";
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std::string const kCMAKE_APPLE_ARCH_SYSROOTS = "CMAKE_APPLE_ARCH_SYSROOTS";
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std::string const kCMAKE_POSITION_INDEPENDENT_CODE =
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"CMAKE_POSITION_INDEPENDENT_CODE";
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std::string const kCMAKE_SYSROOT = "CMAKE_SYSROOT";
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std::string const kCMAKE_SYSROOT_COMPILE = "CMAKE_SYSROOT_COMPILE";
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std::string const kCMAKE_SYSROOT_LINK = "CMAKE_SYSROOT_LINK";
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std::string const kCMAKE_ARMClang_CMP0123 = "CMAKE_ARMClang_CMP0123";
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std::string const kCMAKE_TRY_COMPILE_OSX_ARCHITECTURES =
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"CMAKE_TRY_COMPILE_OSX_ARCHITECTURES";
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std::string const kCMAKE_TRY_COMPILE_PLATFORM_VARIABLES =
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"CMAKE_TRY_COMPILE_PLATFORM_VARIABLES";
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std::string const kCMAKE_WARN_DEPRECATED = "CMAKE_WARN_DEPRECATED";
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std::string const kCMAKE_WATCOM_RUNTIME_LIBRARY_DEFAULT =
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"CMAKE_WATCOM_RUNTIME_LIBRARY_DEFAULT";
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std::string const kCMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT =
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"CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT";
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/* GHS Multi platform variables */
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std::set<std::string> const ghs_platform_vars{
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"GHS_TARGET_PLATFORM", "GHS_PRIMARY_TARGET", "GHS_TOOLSET_ROOT",
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"GHS_OS_ROOT", "GHS_OS_DIR", "GHS_BSP_NAME",
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"GHS_OS_DIR_OPTION"
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};
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using Arguments = cmCoreTryCompile::Arguments;
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ArgumentParser::Continue TryCompileLangProp(Arguments& args,
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cm::string_view key,
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cm::string_view val)
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{
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args.LangProps[std::string(key)] = std::string(val);
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return ArgumentParser::Continue::No;
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}
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ArgumentParser::Continue TryCompileCompileDefs(Arguments& args,
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cm::string_view val)
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{
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args.CompileDefs.append(val);
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return ArgumentParser::Continue::Yes;
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}
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cmArgumentParser<Arguments> makeTryCompileParser(
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const cmArgumentParser<Arguments>& base)
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{
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return cmArgumentParser<Arguments>{ base }.Bind("OUTPUT_VARIABLE"_s,
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&Arguments::OutputVariable);
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}
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cmArgumentParser<Arguments> makeTryRunParser(
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const cmArgumentParser<Arguments>& base)
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{
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return cmArgumentParser<Arguments>{ base }
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.Bind("COMPILE_OUTPUT_VARIABLE"_s, &Arguments::CompileOutputVariable)
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.Bind("RUN_OUTPUT_VARIABLE"_s, &Arguments::RunOutputVariable)
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.Bind("RUN_OUTPUT_STDOUT_VARIABLE"_s, &Arguments::RunOutputStdOutVariable)
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.Bind("RUN_OUTPUT_STDERR_VARIABLE"_s, &Arguments::RunOutputStdErrVariable)
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.Bind("WORKING_DIRECTORY"_s, &Arguments::RunWorkingDirectory)
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.Bind("ARGS"_s, &Arguments::RunArgs)
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/* keep semicolon on own line */;
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}
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#define BIND_LANG_PROPS(lang) \
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Bind(#lang "_STANDARD"_s, TryCompileLangProp) \
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.Bind(#lang "_STANDARD_REQUIRED"_s, TryCompileLangProp) \
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.Bind(#lang "_EXTENSIONS"_s, TryCompileLangProp)
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auto const TryCompileBaseArgParser =
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cmArgumentParser<Arguments>{}
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.Bind(0, &Arguments::CompileResultVariable)
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.Bind("LOG_DESCRIPTION"_s, &Arguments::LogDescription)
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.Bind("NO_CACHE"_s, &Arguments::NoCache)
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.Bind("NO_LOG"_s, &Arguments::NoLog)
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.Bind("CMAKE_FLAGS"_s, &Arguments::CMakeFlags)
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.Bind("__CMAKE_INTERNAL"_s, &Arguments::CMakeInternal)
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/* keep semicolon on own line */;
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auto const TryCompileBaseSourcesArgParser =
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cmArgumentParser<Arguments>{ TryCompileBaseArgParser }
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.Bind("SOURCES_TYPE"_s, &Arguments::SetSourceType)
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.BindWithContext("SOURCES"_s, &Arguments::Sources,
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&Arguments::SourceTypeContext)
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.Bind("COMPILE_DEFINITIONS"_s, TryCompileCompileDefs,
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ArgumentParser::ExpectAtLeast{ 0 })
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.Bind("LINK_LIBRARIES"_s, &Arguments::LinkLibraries)
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.Bind("LINK_OPTIONS"_s, &Arguments::LinkOptions)
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.Bind("LINKER_LANGUAGE"_s, &Arguments::LinkerLanguage)
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.Bind("COPY_FILE"_s, &Arguments::CopyFileTo)
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.Bind("COPY_FILE_ERROR"_s, &Arguments::CopyFileError)
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.BIND_LANG_PROPS(C)
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.BIND_LANG_PROPS(CUDA)
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.BIND_LANG_PROPS(CXX)
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.BIND_LANG_PROPS(HIP)
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.BIND_LANG_PROPS(OBJC)
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.BIND_LANG_PROPS(OBJCXX)
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/* keep semicolon on own line */;
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auto const TryCompileBaseNewSourcesArgParser =
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cmArgumentParser<Arguments>{ TryCompileBaseSourcesArgParser }
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.BindWithContext("SOURCE_FROM_CONTENT"_s, &Arguments::SourceFromContent,
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&Arguments::SourceTypeContext)
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.BindWithContext("SOURCE_FROM_VAR"_s, &Arguments::SourceFromVar,
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&Arguments::SourceTypeContext)
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.BindWithContext("SOURCE_FROM_FILE"_s, &Arguments::SourceFromFile,
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&Arguments::SourceTypeContext)
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/* keep semicolon on own line */;
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auto const TryCompileBaseProjectArgParser =
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cmArgumentParser<Arguments>{ TryCompileBaseArgParser }
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.Bind("PROJECT"_s, &Arguments::ProjectName)
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.Bind("SOURCE_DIR"_s, &Arguments::SourceDirectoryOrFile)
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.Bind("BINARY_DIR"_s, &Arguments::BinaryDirectory)
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.Bind("TARGET"_s, &Arguments::TargetName)
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/* keep semicolon on own line */;
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auto const TryCompileProjectArgParser =
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makeTryCompileParser(TryCompileBaseProjectArgParser);
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auto const TryCompileSourcesArgParser =
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makeTryCompileParser(TryCompileBaseNewSourcesArgParser);
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auto const TryCompileOldArgParser =
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makeTryCompileParser(TryCompileBaseSourcesArgParser)
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.Bind(1, &Arguments::BinaryDirectory)
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.Bind(2, &Arguments::SourceDirectoryOrFile)
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.Bind(3, &Arguments::ProjectName)
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.Bind(4, &Arguments::TargetName)
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/* keep semicolon on own line */;
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auto const TryRunSourcesArgParser =
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makeTryRunParser(TryCompileBaseNewSourcesArgParser);
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auto const TryRunOldArgParser = makeTryRunParser(TryCompileOldArgParser);
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#undef BIND_LANG_PROPS
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std::string const TryCompileDefaultConfig = "DEBUG";
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}
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ArgumentParser::Continue cmCoreTryCompile::Arguments::SetSourceType(
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cm::string_view sourceType)
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{
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bool matched = false;
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if (sourceType == "NORMAL"_s) {
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this->SourceTypeContext = SourceType::Normal;
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matched = true;
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} else if (sourceType == "CXX_MODULE"_s) {
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this->SourceTypeContext = SourceType::CxxModule;
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matched = true;
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}
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if (!matched && this->SourceTypeError.empty()) {
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// Only remember one error at a time; all other errors related to argument
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// parsing are "indicate one error and return" anyways.
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this->SourceTypeError =
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cmStrCat("Invalid 'SOURCE_TYPE' '", sourceType,
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"'; must be one of 'SOURCE' or 'CXX_MODULE'");
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}
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return ArgumentParser::Continue::Yes;
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}
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Arguments cmCoreTryCompile::ParseArgs(
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const cmRange<std::vector<std::string>::const_iterator>& args,
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const cmArgumentParser<Arguments>& parser,
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std::vector<std::string>& unparsedArguments)
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{
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Arguments arguments{ this->Makefile };
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parser.Parse(arguments, args, &unparsedArguments, 0);
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if (!arguments.MaybeReportError(*(this->Makefile)) &&
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!unparsedArguments.empty()) {
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std::string m = "Unknown arguments:";
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for (const auto& i : unparsedArguments) {
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m = cmStrCat(m, "\n \"", i, '"');
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}
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this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, m);
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}
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return arguments;
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}
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Arguments cmCoreTryCompile::ParseArgs(
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cmRange<std::vector<std::string>::const_iterator> args, bool isTryRun)
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{
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std::vector<std::string> unparsedArguments;
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const auto& second = *(++args.begin());
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if (!isTryRun && second == "PROJECT") {
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// New PROJECT signature (try_compile only).
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auto arguments =
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this->ParseArgs(args, TryCompileProjectArgParser, unparsedArguments);
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if (!arguments.BinaryDirectory) {
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arguments.BinaryDirectory = unique_binary_directory;
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}
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return arguments;
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}
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if (cmHasLiteralPrefix(second, "SOURCE")) {
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// New SOURCES signature.
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auto arguments = this->ParseArgs(
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args, isTryRun ? TryRunSourcesArgParser : TryCompileSourcesArgParser,
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unparsedArguments);
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arguments.BinaryDirectory = unique_binary_directory;
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return arguments;
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}
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// Old signature.
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auto arguments = this->ParseArgs(
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args, isTryRun ? TryRunOldArgParser : TryCompileOldArgParser,
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unparsedArguments);
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// For historical reasons, treat some empty-valued keyword
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// arguments as if they were not specified at all.
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if (arguments.OutputVariable && arguments.OutputVariable->empty()) {
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arguments.OutputVariable = cm::nullopt;
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}
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if (isTryRun) {
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if (arguments.CompileOutputVariable &&
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arguments.CompileOutputVariable->empty()) {
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arguments.CompileOutputVariable = cm::nullopt;
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}
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if (arguments.RunOutputVariable && arguments.RunOutputVariable->empty()) {
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arguments.RunOutputVariable = cm::nullopt;
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}
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if (arguments.RunOutputStdOutVariable &&
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arguments.RunOutputStdOutVariable->empty()) {
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arguments.RunOutputStdOutVariable = cm::nullopt;
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}
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if (arguments.RunOutputStdErrVariable &&
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arguments.RunOutputStdErrVariable->empty()) {
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arguments.RunOutputStdErrVariable = cm::nullopt;
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}
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if (arguments.RunWorkingDirectory &&
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arguments.RunWorkingDirectory->empty()) {
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arguments.RunWorkingDirectory = cm::nullopt;
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}
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}
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return arguments;
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}
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cm::optional<cmTryCompileResult> cmCoreTryCompile::TryCompileCode(
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Arguments& arguments, cmStateEnums::TargetType targetType)
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{
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this->OutputFile.clear();
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// which signature were we called with ?
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this->SrcFileSignature = true;
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bool useUniqueBinaryDirectory = false;
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std::string sourceDirectory;
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std::string projectName;
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std::string targetName;
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if (arguments.ProjectName) {
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this->SrcFileSignature = false;
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if (!arguments.SourceDirectoryOrFile ||
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arguments.SourceDirectoryOrFile->empty()) {
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this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
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"No <srcdir> specified.");
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return cm::nullopt;
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}
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sourceDirectory = *arguments.SourceDirectoryOrFile;
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projectName = *arguments.ProjectName;
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if (arguments.TargetName) {
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targetName = *arguments.TargetName;
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}
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} else {
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projectName = "CMAKE_TRY_COMPILE";
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/* Use a random file name to avoid rapid creation and deletion
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of the same executable name (some filesystems fail on that). */
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char targetNameBuf[64];
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snprintf(targetNameBuf, sizeof(targetNameBuf), "cmTC_%05x",
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cmSystemTools::RandomSeed() & 0xFFFFF);
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targetName = targetNameBuf;
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}
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if (!arguments.BinaryDirectory || arguments.BinaryDirectory->empty()) {
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this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
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"No <bindir> specified.");
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return cm::nullopt;
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}
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if (*arguments.BinaryDirectory == unique_binary_directory) {
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// leave empty until we're ready to create it, so we don't try to remove
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// a non-existing directory if we abort due to e.g. bad arguments
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this->BinaryDirectory.clear();
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useUniqueBinaryDirectory = true;
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} else {
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if (!cmSystemTools::FileIsFullPath(*arguments.BinaryDirectory)) {
|
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this->Makefile->IssueMessage(
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MessageType::FATAL_ERROR,
|
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cmStrCat("<bindir> is not an absolute path:\n '",
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*arguments.BinaryDirectory, '\''));
|
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return cm::nullopt;
|
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}
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this->BinaryDirectory = *arguments.BinaryDirectory;
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// compute the binary dir when TRY_COMPILE is called with a src file
|
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// signature
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if (this->SrcFileSignature) {
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this->BinaryDirectory += "/CMakeFiles/CMakeTmp";
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}
|
|
}
|
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std::vector<std::string> targets;
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if (arguments.LinkLibraries) {
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for (std::string const& i : *arguments.LinkLibraries) {
|
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if (cmTarget* tgt = this->Makefile->FindTargetToUse(i)) {
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switch (tgt->GetType()) {
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case cmStateEnums::SHARED_LIBRARY:
|
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case cmStateEnums::STATIC_LIBRARY:
|
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case cmStateEnums::INTERFACE_LIBRARY:
|
|
case cmStateEnums::UNKNOWN_LIBRARY:
|
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break;
|
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case cmStateEnums::EXECUTABLE:
|
|
if (tgt->IsExecutableWithExports()) {
|
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break;
|
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}
|
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CM_FALLTHROUGH;
|
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default:
|
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this->Makefile->IssueMessage(
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MessageType::FATAL_ERROR,
|
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cmStrCat("Only libraries may be used as try_compile or try_run "
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"IMPORTED LINK_LIBRARIES. Got ",
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tgt->GetName(), " of type ",
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cmState::GetTargetTypeName(tgt->GetType()), '.'));
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return cm::nullopt;
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}
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if (tgt->IsImported()) {
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targets.emplace_back(i);
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}
|
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}
|
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}
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}
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|
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if (arguments.CopyFileTo && arguments.CopyFileTo->empty()) {
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|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
|
|
"COPY_FILE must be followed by a file path");
|
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return cm::nullopt;
|
|
}
|
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|
|
if (arguments.CopyFileError && arguments.CopyFileError->empty()) {
|
|
this->Makefile->IssueMessage(
|
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MessageType::FATAL_ERROR,
|
|
"COPY_FILE_ERROR must be followed by a variable name");
|
|
return cm::nullopt;
|
|
}
|
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|
|
if (arguments.CopyFileError && !arguments.CopyFileTo) {
|
|
this->Makefile->IssueMessage(
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MessageType::FATAL_ERROR,
|
|
"COPY_FILE_ERROR may be used only with COPY_FILE");
|
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return cm::nullopt;
|
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}
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|
|
if (arguments.Sources && arguments.Sources->empty()) {
|
|
this->Makefile->IssueMessage(
|
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MessageType::FATAL_ERROR,
|
|
"SOURCES must be followed by at least one source file");
|
|
return cm::nullopt;
|
|
}
|
|
|
|
if (this->SrcFileSignature) {
|
|
if (arguments.SourceFromContent &&
|
|
arguments.SourceFromContent->size() % 2) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"SOURCE_FROM_CONTENT requires exactly two arguments");
|
|
return cm::nullopt;
|
|
}
|
|
if (arguments.SourceFromVar && arguments.SourceFromVar->size() % 2) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"SOURCE_FROM_VAR requires exactly two arguments");
|
|
return cm::nullopt;
|
|
}
|
|
if (arguments.SourceFromFile && arguments.SourceFromFile->size() % 2) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"SOURCE_FROM_FILE requires exactly two arguments");
|
|
return cm::nullopt;
|
|
}
|
|
if (!arguments.SourceTypeError.empty()) {
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
|
|
arguments.SourceTypeError);
|
|
return cm::nullopt;
|
|
}
|
|
} else {
|
|
// only valid for srcfile signatures
|
|
if (!arguments.LangProps.empty()) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmStrCat(arguments.LangProps.begin()->first,
|
|
" allowed only in source file signature"));
|
|
return cm::nullopt;
|
|
}
|
|
if (!arguments.CompileDefs.empty()) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"COMPILE_DEFINITIONS allowed only in source file signature");
|
|
return cm::nullopt;
|
|
}
|
|
if (arguments.CopyFileTo) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"COPY_FILE allowed only in source file signature");
|
|
return cm::nullopt;
|
|
}
|
|
}
|
|
|
|
// make sure the binary directory exists
|
|
if (useUniqueBinaryDirectory) {
|
|
this->BinaryDirectory =
|
|
cmStrCat(this->Makefile->GetHomeOutputDirectory(),
|
|
"/CMakeFiles/CMakeScratch/TryCompile-XXXXXX");
|
|
cmSystemTools::MakeTempDirectory(this->BinaryDirectory);
|
|
} else {
|
|
cmSystemTools::MakeDirectory(this->BinaryDirectory);
|
|
}
|
|
|
|
// do not allow recursive try Compiles
|
|
if (this->BinaryDirectory == this->Makefile->GetHomeOutputDirectory()) {
|
|
std::ostringstream e;
|
|
e << "Attempt at a recursive or nested TRY_COMPILE in directory\n"
|
|
<< " " << this->BinaryDirectory << "\n";
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
|
|
return cm::nullopt;
|
|
}
|
|
|
|
std::map<std::string, std::string> cmakeVariables;
|
|
|
|
std::string outFileName = cmStrCat(this->BinaryDirectory, "/CMakeLists.txt");
|
|
// which signature are we using? If we are using var srcfile bindir
|
|
if (this->SrcFileSignature) {
|
|
// remove any CMakeCache.txt files so we will have a clean test
|
|
std::string ccFile = cmStrCat(this->BinaryDirectory, "/CMakeCache.txt");
|
|
cmSystemTools::RemoveFile(ccFile);
|
|
|
|
// Choose sources.
|
|
std::vector<std::pair<std::string, Arguments::SourceType>> sources;
|
|
if (arguments.Sources) {
|
|
sources = std::move(*arguments.Sources);
|
|
} else if (arguments.SourceDirectoryOrFile) {
|
|
sources.emplace_back(*arguments.SourceDirectoryOrFile,
|
|
Arguments::SourceType::Directory);
|
|
}
|
|
if (arguments.SourceFromContent) {
|
|
auto const k = arguments.SourceFromContent->size();
|
|
for (auto i = decltype(k){ 0 }; i < k; i += 2) {
|
|
const auto& name = (*arguments.SourceFromContent)[i + 0].first;
|
|
const auto& content = (*arguments.SourceFromContent)[i + 1].first;
|
|
auto out = this->WriteSource(name, content, "SOURCE_FROM_CONTENT");
|
|
if (out.empty()) {
|
|
return cm::nullopt;
|
|
}
|
|
sources.emplace_back(std::move(out),
|
|
(*arguments.SourceFromContent)[i + 0].second);
|
|
}
|
|
}
|
|
if (arguments.SourceFromVar) {
|
|
auto const k = arguments.SourceFromVar->size();
|
|
for (auto i = decltype(k){ 0 }; i < k; i += 2) {
|
|
const auto& name = (*arguments.SourceFromVar)[i + 0].first;
|
|
const auto& var = (*arguments.SourceFromVar)[i + 1].first;
|
|
const auto& content = this->Makefile->GetDefinition(var);
|
|
auto out = this->WriteSource(name, content, "SOURCE_FROM_VAR");
|
|
if (out.empty()) {
|
|
return cm::nullopt;
|
|
}
|
|
sources.emplace_back(std::move(out),
|
|
(*arguments.SourceFromVar)[i + 0].second);
|
|
}
|
|
}
|
|
if (arguments.SourceFromFile) {
|
|
auto const k = arguments.SourceFromFile->size();
|
|
for (auto i = decltype(k){ 0 }; i < k; i += 2) {
|
|
const auto& dst = (*arguments.SourceFromFile)[i + 0].first;
|
|
const auto& src = (*arguments.SourceFromFile)[i + 1].first;
|
|
|
|
if (!cmSystemTools::GetFilenamePath(dst).empty()) {
|
|
const auto& msg =
|
|
cmStrCat("SOURCE_FROM_FILE given invalid filename \"", dst, '"');
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, msg);
|
|
return cm::nullopt;
|
|
}
|
|
|
|
auto dstPath = cmStrCat(this->BinaryDirectory, '/', dst);
|
|
auto const result = cmSystemTools::CopyFileAlways(src, dstPath);
|
|
if (!result.IsSuccess()) {
|
|
const auto& msg = cmStrCat("SOURCE_FROM_FILE failed to copy \"", src,
|
|
"\": ", result.GetString());
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, msg);
|
|
return cm::nullopt;
|
|
}
|
|
|
|
sources.emplace_back(std::move(dstPath),
|
|
(*arguments.SourceFromFile)[i + 0].second);
|
|
}
|
|
}
|
|
// TODO: ensure sources is not empty
|
|
|
|
// Detect languages to enable.
|
|
cmGlobalGenerator* gg = this->Makefile->GetGlobalGenerator();
|
|
std::set<std::string> testLangs;
|
|
for (auto const& source : sources) {
|
|
auto const& si = source.first;
|
|
std::string ext = cmSystemTools::GetFilenameLastExtension(si);
|
|
std::string lang = gg->GetLanguageFromExtension(ext.c_str());
|
|
if (!lang.empty()) {
|
|
testLangs.insert(lang);
|
|
} else {
|
|
std::ostringstream err;
|
|
err << "Unknown extension \"" << ext
|
|
<< "\" for file\n"
|
|
" "
|
|
<< si
|
|
<< "\n"
|
|
"try_compile() works only for enabled languages. "
|
|
"Currently these are:\n ";
|
|
std::vector<std::string> langs;
|
|
gg->GetEnabledLanguages(langs);
|
|
err << cmJoin(langs, " ");
|
|
err << "\nSee project() command to enable other languages.";
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, err.str());
|
|
return cm::nullopt;
|
|
}
|
|
}
|
|
|
|
// when the only language is ISPC we know that the output
|
|
// type must by a static library
|
|
if (testLangs.size() == 1 && testLangs.count("ISPC") == 1) {
|
|
targetType = cmStateEnums::STATIC_LIBRARY;
|
|
}
|
|
|
|
std::string const tcConfig =
|
|
this->Makefile->GetSafeDefinition("CMAKE_TRY_COMPILE_CONFIGURATION");
|
|
|
|
// we need to create a directory and CMakeLists file etc...
|
|
// first create the directories
|
|
sourceDirectory = this->BinaryDirectory;
|
|
|
|
// now create a CMakeLists.txt file in that directory
|
|
FILE* fout = cmsys::SystemTools::Fopen(outFileName, "w");
|
|
if (!fout) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmStrCat("Failed to open\n"
|
|
" ",
|
|
outFileName, '\n', cmSystemTools::GetLastSystemError()));
|
|
return cm::nullopt;
|
|
}
|
|
|
|
cmValue def = this->Makefile->GetDefinition("CMAKE_MODULE_PATH");
|
|
fprintf(fout, "cmake_minimum_required(VERSION %u.%u.%u.%u)\n",
|
|
cmVersion::GetMajorVersion(), cmVersion::GetMinorVersion(),
|
|
cmVersion::GetPatchVersion(), cmVersion::GetTweakVersion());
|
|
if (def) {
|
|
fprintf(fout, "set(CMAKE_MODULE_PATH \"%s\")\n", def->c_str());
|
|
cmakeVariables.emplace("CMAKE_MODULE_PATH", *def);
|
|
}
|
|
|
|
/* Set MSVC runtime library policy to match our selection. */
|
|
if (cmValue msvcRuntimeLibraryDefault =
|
|
this->Makefile->GetDefinition(kCMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT)) {
|
|
fprintf(fout, "cmake_policy(SET CMP0091 %s)\n",
|
|
!msvcRuntimeLibraryDefault->empty() ? "NEW" : "OLD");
|
|
}
|
|
|
|
/* Set Watcom runtime library policy to match our selection. */
|
|
if (cmValue watcomRuntimeLibraryDefault = this->Makefile->GetDefinition(
|
|
kCMAKE_WATCOM_RUNTIME_LIBRARY_DEFAULT)) {
|
|
fprintf(fout, "cmake_policy(SET CMP0136 %s)\n",
|
|
!watcomRuntimeLibraryDefault->empty() ? "NEW" : "OLD");
|
|
}
|
|
|
|
/* Set CUDA architectures policy to match outer project. */
|
|
if (this->Makefile->GetPolicyStatus(cmPolicies::CMP0104) !=
|
|
cmPolicies::NEW &&
|
|
testLangs.find("CUDA") != testLangs.end() &&
|
|
this->Makefile->GetSafeDefinition(kCMAKE_CUDA_ARCHITECTURES).empty()) {
|
|
fprintf(fout, "cmake_policy(SET CMP0104 OLD)\n");
|
|
}
|
|
|
|
/* Set ARMClang cpu/arch policy to match outer project. */
|
|
if (cmValue cmp0123 =
|
|
this->Makefile->GetDefinition(kCMAKE_ARMClang_CMP0123)) {
|
|
fprintf(fout, "cmake_policy(SET CMP0123 %s)\n",
|
|
*cmp0123 == "NEW"_s ? "NEW" : "OLD");
|
|
}
|
|
|
|
/* Set MSVC debug information format policy to match our selection. */
|
|
if (cmValue msvcDebugInformationFormatDefault =
|
|
this->Makefile->GetDefinition(
|
|
kCMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT)) {
|
|
fprintf(fout, "cmake_policy(SET CMP0141 %s)\n",
|
|
!msvcDebugInformationFormatDefault->empty() ? "NEW" : "OLD");
|
|
}
|
|
|
|
/* Set cache/normal variable policy to match outer project.
|
|
It may affect toolchain files. */
|
|
if (this->Makefile->GetPolicyStatus(cmPolicies::CMP0126) !=
|
|
cmPolicies::NEW) {
|
|
fprintf(fout, "cmake_policy(SET CMP0126 OLD)\n");
|
|
}
|
|
|
|
/* Set language extensions policy to match outer project. */
|
|
if (this->Makefile->GetPolicyStatus(cmPolicies::CMP0128) !=
|
|
cmPolicies::NEW) {
|
|
fprintf(fout, "cmake_policy(SET CMP0128 OLD)\n");
|
|
}
|
|
|
|
std::string projectLangs;
|
|
for (std::string const& li : testLangs) {
|
|
projectLangs += cmStrCat(' ', li);
|
|
std::string rulesOverrideBase = "CMAKE_USER_MAKE_RULES_OVERRIDE";
|
|
std::string rulesOverrideLang = cmStrCat(rulesOverrideBase, '_', li);
|
|
if (cmValue rulesOverridePath =
|
|
this->Makefile->GetDefinition(rulesOverrideLang)) {
|
|
fprintf(fout, "set(%s \"%s\")\n", rulesOverrideLang.c_str(),
|
|
rulesOverridePath->c_str());
|
|
cmakeVariables.emplace(rulesOverrideLang, *rulesOverridePath);
|
|
} else if (cmValue rulesOverridePath2 =
|
|
this->Makefile->GetDefinition(rulesOverrideBase)) {
|
|
fprintf(fout, "set(%s \"%s\")\n", rulesOverrideBase.c_str(),
|
|
rulesOverridePath2->c_str());
|
|
cmakeVariables.emplace(rulesOverrideBase, *rulesOverridePath2);
|
|
}
|
|
}
|
|
fprintf(fout, "project(CMAKE_TRY_COMPILE%s)\n", projectLangs.c_str());
|
|
if (arguments.CMakeInternal == "ABI") {
|
|
// This is the ABI detection step, also used for implicit includes.
|
|
// Erase any include_directories() calls from the toolchain file so
|
|
// that we do not see them as implicit. Our ABI detection source
|
|
// does not include any system headers anyway.
|
|
fprintf(fout,
|
|
"set_property(DIRECTORY PROPERTY INCLUDE_DIRECTORIES \"\")\n");
|
|
|
|
// The link and compile lines for ABI detection step need to not use
|
|
// response files so we can extract implicit includes given to
|
|
// the underlying host compiler
|
|
static std::array<std::string, 2> const noRSP{ { "CUDA", "HIP" } };
|
|
for (std::string const& lang : noRSP) {
|
|
if (testLangs.find(lang) != testLangs.end()) {
|
|
fprintf(fout, "set(CMAKE_%s_USE_RESPONSE_FILE_FOR_INCLUDES OFF)\n",
|
|
lang.c_str());
|
|
fprintf(fout, "set(CMAKE_%s_USE_RESPONSE_FILE_FOR_LIBRARIES OFF)\n",
|
|
lang.c_str());
|
|
fprintf(fout, "set(CMAKE_%s_USE_RESPONSE_FILE_FOR_OBJECTS OFF)\n",
|
|
lang.c_str());
|
|
}
|
|
}
|
|
}
|
|
fprintf(fout, "set(CMAKE_VERBOSE_MAKEFILE 1)\n");
|
|
for (std::string const& li : testLangs) {
|
|
std::string langFlags = cmStrCat("CMAKE_", li, "_FLAGS");
|
|
cmValue flags = this->Makefile->GetDefinition(langFlags);
|
|
fprintf(fout, "set(CMAKE_%s_FLAGS %s)\n", li.c_str(),
|
|
cmOutputConverter::EscapeForCMake(*flags).c_str());
|
|
fprintf(fout,
|
|
"set(CMAKE_%s_FLAGS \"${CMAKE_%s_FLAGS}"
|
|
" ${COMPILE_DEFINITIONS}\")\n",
|
|
li.c_str(), li.c_str());
|
|
if (flags) {
|
|
cmakeVariables.emplace(langFlags, *flags);
|
|
}
|
|
}
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0066)) {
|
|
case cmPolicies::WARN:
|
|
if (this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0066")) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0066) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring caller config-specific compiler flags "
|
|
"(e.g. CMAKE_C_FLAGS_DEBUG) in the test project."
|
|
;
|
|
/* clang-format on */
|
|
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
|
|
}
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to do nothing.
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0066));
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::NEW: {
|
|
// NEW behavior is to pass config-specific compiler flags.
|
|
std::string const cfg = !tcConfig.empty()
|
|
? cmSystemTools::UpperCase(tcConfig)
|
|
: TryCompileDefaultConfig;
|
|
for (std::string const& li : testLangs) {
|
|
std::string const langFlagsCfg =
|
|
cmStrCat("CMAKE_", li, "_FLAGS_", cfg);
|
|
cmValue flagsCfg = this->Makefile->GetDefinition(langFlagsCfg);
|
|
fprintf(fout, "set(%s %s)\n", langFlagsCfg.c_str(),
|
|
cmOutputConverter::EscapeForCMake(*flagsCfg).c_str());
|
|
if (flagsCfg) {
|
|
cmakeVariables.emplace(langFlagsCfg, *flagsCfg);
|
|
}
|
|
}
|
|
} break;
|
|
}
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0056)) {
|
|
case cmPolicies::WARN:
|
|
if (this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0056")) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0056) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring caller link flags (e.g. CMAKE_EXE_LINKER_FLAGS) "
|
|
"in the test project."
|
|
;
|
|
/* clang-format on */
|
|
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
|
|
}
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to do nothing.
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0056));
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::NEW:
|
|
// NEW behavior is to pass linker flags.
|
|
{
|
|
cmValue exeLinkFlags =
|
|
this->Makefile->GetDefinition("CMAKE_EXE_LINKER_FLAGS");
|
|
fprintf(fout, "set(CMAKE_EXE_LINKER_FLAGS %s)\n",
|
|
cmOutputConverter::EscapeForCMake(*exeLinkFlags).c_str());
|
|
if (exeLinkFlags) {
|
|
cmakeVariables.emplace("CMAKE_EXE_LINKER_FLAGS", *exeLinkFlags);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
fprintf(fout,
|
|
"set(CMAKE_EXE_LINKER_FLAGS \"${CMAKE_EXE_LINKER_FLAGS}"
|
|
" ${EXE_LINKER_FLAGS}\")\n");
|
|
fprintf(fout, "include_directories(${INCLUDE_DIRECTORIES})\n");
|
|
fprintf(fout, "set(CMAKE_SUPPRESS_REGENERATION 1)\n");
|
|
fprintf(fout, "link_directories(${LINK_DIRECTORIES})\n");
|
|
// handle any compile flags we need to pass on
|
|
if (!arguments.CompileDefs.empty()) {
|
|
// Pass using bracket arguments to preserve content.
|
|
fprintf(fout, "add_definitions([==[%s]==])\n",
|
|
arguments.CompileDefs.join("]==] [==[").c_str());
|
|
}
|
|
|
|
if (!targets.empty()) {
|
|
std::string fname = cmStrCat('/', targetName, "Targets.cmake");
|
|
cmExportTryCompileFileGenerator tcfg(gg, targets, this->Makefile,
|
|
testLangs);
|
|
tcfg.SetExportFile(cmStrCat(this->BinaryDirectory, fname).c_str());
|
|
tcfg.SetConfig(tcConfig);
|
|
|
|
if (!tcfg.GenerateImportFile()) {
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR,
|
|
"could not write export file.");
|
|
fclose(fout);
|
|
return cm::nullopt;
|
|
}
|
|
fprintf(fout, "\ninclude(\"${CMAKE_CURRENT_LIST_DIR}/%s\")\n",
|
|
fname.c_str());
|
|
// Create all relevant alias targets
|
|
if (arguments.LinkLibraries) {
|
|
const auto& aliasTargets = this->Makefile->GetAliasTargets();
|
|
for (std::string const& i : *arguments.LinkLibraries) {
|
|
auto alias = aliasTargets.find(i);
|
|
if (alias != aliasTargets.end()) {
|
|
const auto& aliasTarget =
|
|
this->Makefile->FindTargetToUse(alias->second);
|
|
// Create equivalent library/executable alias
|
|
if (aliasTarget->GetType() == cmStateEnums::EXECUTABLE) {
|
|
fprintf(fout, "add_executable(\"%s\" ALIAS \"%s\")\n", i.c_str(),
|
|
alias->second.c_str());
|
|
} else {
|
|
// Other cases like UTILITY and GLOBAL_TARGET are excluded when
|
|
// arguments.LinkLibraries is initially parsed in this function.
|
|
fprintf(fout, "add_library(\"%s\" ALIAS \"%s\")\n", i.c_str(),
|
|
alias->second.c_str());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
fprintf(fout, "\n");
|
|
}
|
|
|
|
/* Set the appropriate policy information for ENABLE_EXPORTS */
|
|
fprintf(fout, "cmake_policy(SET CMP0065 %s)\n",
|
|
this->Makefile->GetPolicyStatus(cmPolicies::CMP0065) ==
|
|
cmPolicies::NEW
|
|
? "NEW"
|
|
: "OLD");
|
|
|
|
/* Set the appropriate policy information for PIE link flags */
|
|
fprintf(fout, "cmake_policy(SET CMP0083 %s)\n",
|
|
this->Makefile->GetPolicyStatus(cmPolicies::CMP0083) ==
|
|
cmPolicies::NEW
|
|
? "NEW"
|
|
: "OLD");
|
|
|
|
/* Set the appropriate policy information for C++ module support */
|
|
fprintf(fout, "cmake_policy(SET CMP0155 %s)\n",
|
|
this->Makefile->GetPolicyStatus(cmPolicies::CMP0155) ==
|
|
cmPolicies::NEW
|
|
? "NEW"
|
|
: "OLD");
|
|
|
|
/* Set the appropriate policy information for Swift compilation mode */
|
|
fprintf(
|
|
fout, "cmake_policy(SET CMP0157 %s)\n",
|
|
this->Makefile->GetDefinition("CMAKE_Swift_COMPILATION_MODE_DEFAULT")
|
|
.IsEmpty()
|
|
? "OLD"
|
|
: "NEW");
|
|
|
|
// Workaround for -Wl,-headerpad_max_install_names issue until we can avoid
|
|
// adding that flag in the platform and compiler language files
|
|
fprintf(fout,
|
|
"include(\"${CMAKE_ROOT}/Modules/Internal/"
|
|
"HeaderpadWorkaround.cmake\")\n");
|
|
|
|
if (targetType == cmStateEnums::EXECUTABLE) {
|
|
/* Put the executable at a known location (for COPY_FILE). */
|
|
fprintf(fout, "set(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
|
|
this->BinaryDirectory.c_str());
|
|
/* Create the actual executable. */
|
|
fprintf(fout, "add_executable(%s)\n", targetName.c_str());
|
|
} else // if (targetType == cmStateEnums::STATIC_LIBRARY)
|
|
{
|
|
/* Put the static library at a known location (for COPY_FILE). */
|
|
fprintf(fout, "set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY \"%s\")\n",
|
|
this->BinaryDirectory.c_str());
|
|
/* Create the actual static library. */
|
|
fprintf(fout, "add_library(%s STATIC)\n", targetName.c_str());
|
|
}
|
|
fprintf(fout, "target_sources(%s PRIVATE\n", targetName.c_str());
|
|
std::string file_set_name;
|
|
bool in_file_set = false;
|
|
for (auto const& source : sources) {
|
|
auto const& si = source.first;
|
|
switch (source.second) {
|
|
case Arguments::SourceType::Normal: {
|
|
if (in_file_set) {
|
|
fprintf(fout, " PRIVATE\n");
|
|
in_file_set = false;
|
|
}
|
|
} break;
|
|
case Arguments::SourceType::CxxModule: {
|
|
if (!in_file_set) {
|
|
file_set_name += 'a';
|
|
fprintf(fout,
|
|
" PRIVATE FILE_SET %s TYPE CXX_MODULES BASE_DIRS \"%s\" "
|
|
"FILES\n",
|
|
file_set_name.c_str(),
|
|
this->Makefile->GetCurrentSourceDirectory().c_str());
|
|
in_file_set = true;
|
|
}
|
|
} break;
|
|
case Arguments::SourceType::Directory:
|
|
/* Handled elsewhere. */
|
|
break;
|
|
}
|
|
fprintf(fout, " \"%s\"\n", si.c_str());
|
|
|
|
// Add dependencies on any non-temporary sources.
|
|
if (!IsTemporary(si)) {
|
|
this->Makefile->AddCMakeDependFile(si);
|
|
}
|
|
}
|
|
fprintf(fout, ")\n");
|
|
|
|
/* Write out the output location of the target we are building */
|
|
std::string perConfigGenex;
|
|
if (this->Makefile->GetGlobalGenerator()->IsMultiConfig()) {
|
|
perConfigGenex = "_$<UPPER_CASE:$<CONFIG>>";
|
|
}
|
|
fprintf(fout,
|
|
"file(GENERATE OUTPUT "
|
|
"\"${CMAKE_BINARY_DIR}/%s%s_loc\"\n",
|
|
targetName.c_str(), perConfigGenex.c_str());
|
|
fprintf(fout, " CONTENT $<TARGET_FILE:%s>)\n", targetName.c_str());
|
|
|
|
bool warnCMP0067 = false;
|
|
bool honorStandard = true;
|
|
|
|
if (arguments.LangProps.empty()) {
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0067)) {
|
|
case cmPolicies::WARN:
|
|
warnCMP0067 = this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0067");
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to not honor the language standard variables.
|
|
honorStandard = false;
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0067));
|
|
break;
|
|
case cmPolicies::NEW:
|
|
// NEW behavior is to honor the language standard variables.
|
|
// We already initialized honorStandard to true.
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::vector<std::string> warnCMP0067Variables;
|
|
|
|
if (honorStandard || warnCMP0067) {
|
|
static std::array<std::string, 6> const possibleLangs{
|
|
{ "C", "CXX", "CUDA", "HIP", "OBJC", "OBJCXX" }
|
|
};
|
|
static std::array<cm::string_view, 3> const langPropSuffixes{
|
|
{ "_STANDARD"_s, "_STANDARD_REQUIRED"_s, "_EXTENSIONS"_s }
|
|
};
|
|
for (std::string const& lang : possibleLangs) {
|
|
if (testLangs.find(lang) == testLangs.end()) {
|
|
continue;
|
|
}
|
|
for (cm::string_view propSuffix : langPropSuffixes) {
|
|
std::string langProp = cmStrCat(lang, propSuffix);
|
|
if (!arguments.LangProps.count(langProp)) {
|
|
std::string langPropVar = cmStrCat("CMAKE_"_s, langProp);
|
|
std::string value = this->Makefile->GetSafeDefinition(langPropVar);
|
|
if (warnCMP0067 && !value.empty()) {
|
|
value.clear();
|
|
warnCMP0067Variables.emplace_back(langPropVar);
|
|
}
|
|
if (!value.empty()) {
|
|
arguments.LangProps[langProp] = value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!warnCMP0067Variables.empty()) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0067) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring language standard variables in the test project:\n"
|
|
;
|
|
/* clang-format on */
|
|
for (std::string const& vi : warnCMP0067Variables) {
|
|
w << " " << vi << "\n";
|
|
}
|
|
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
|
|
}
|
|
|
|
for (auto const& p : arguments.LangProps) {
|
|
if (p.second.empty()) {
|
|
continue;
|
|
}
|
|
fprintf(fout, "set_property(TARGET %s PROPERTY %s %s)\n",
|
|
targetName.c_str(),
|
|
cmOutputConverter::EscapeForCMake(p.first).c_str(),
|
|
cmOutputConverter::EscapeForCMake(p.second).c_str());
|
|
}
|
|
|
|
if (!arguments.LinkOptions.empty()) {
|
|
std::vector<std::string> options;
|
|
options.reserve(arguments.LinkOptions.size());
|
|
for (const auto& option : arguments.LinkOptions) {
|
|
options.emplace_back(cmOutputConverter::EscapeForCMake(option));
|
|
}
|
|
|
|
if (targetType == cmStateEnums::STATIC_LIBRARY) {
|
|
fprintf(fout,
|
|
"set_property(TARGET %s PROPERTY STATIC_LIBRARY_OPTIONS %s)\n",
|
|
targetName.c_str(), cmJoin(options, " ").c_str());
|
|
} else {
|
|
fprintf(fout, "target_link_options(%s PRIVATE %s)\n",
|
|
targetName.c_str(), cmJoin(options, " ").c_str());
|
|
}
|
|
}
|
|
|
|
if (arguments.LinkerLanguage) {
|
|
std::string LinkerLanguage = *arguments.LinkerLanguage;
|
|
if (testLangs.find(LinkerLanguage) == testLangs.end()) {
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
"Linker language '" + LinkerLanguage +
|
|
"' must be enabled in project(LANGUAGES).");
|
|
}
|
|
|
|
fprintf(fout, "set_property(TARGET %s PROPERTY LINKER_LANGUAGE %s)\n",
|
|
targetName.c_str(), LinkerLanguage.c_str());
|
|
}
|
|
|
|
if (arguments.LinkLibraries) {
|
|
std::string libsToLink = " ";
|
|
for (std::string const& i : *arguments.LinkLibraries) {
|
|
libsToLink += cmStrCat('"', cmTrimWhitespace(i), "\" ");
|
|
}
|
|
fprintf(fout, "target_link_libraries(%s %s)\n", targetName.c_str(),
|
|
libsToLink.c_str());
|
|
} else {
|
|
fprintf(fout, "target_link_libraries(%s ${LINK_LIBRARIES})\n",
|
|
targetName.c_str());
|
|
}
|
|
fclose(fout);
|
|
}
|
|
|
|
// Forward a set of variables to the inner project cache.
|
|
if ((this->SrcFileSignature ||
|
|
this->Makefile->GetPolicyStatus(cmPolicies::CMP0137) ==
|
|
cmPolicies::NEW) &&
|
|
!this->Makefile->IsOn("CMAKE_TRY_COMPILE_NO_PLATFORM_VARIABLES")) {
|
|
std::set<std::string> vars;
|
|
vars.insert(&c_properties[lang_property_start],
|
|
&c_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&cxx_properties[lang_property_start],
|
|
&cxx_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&cuda_properties[lang_property_start],
|
|
&cuda_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&fortran_properties[lang_property_start],
|
|
&fortran_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&hip_properties[lang_property_start],
|
|
&hip_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&objc_properties[lang_property_start],
|
|
&objc_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&objcxx_properties[lang_property_start],
|
|
&objcxx_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&ispc_properties[lang_property_start],
|
|
&ispc_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(&swift_properties[lang_property_start],
|
|
&swift_properties[lang_property_start + lang_property_size]);
|
|
vars.insert(kCMAKE_CUDA_ARCHITECTURES);
|
|
vars.insert(kCMAKE_CUDA_RUNTIME_LIBRARY);
|
|
vars.insert(kCMAKE_CXX_SCAN_FOR_MODULES);
|
|
vars.insert(kCMAKE_ENABLE_EXPORTS);
|
|
vars.insert(kCMAKE_EXECUTABLE_ENABLE_EXPORTS);
|
|
vars.insert(kCMAKE_SHARED_LIBRARY_ENABLE_EXPORTS);
|
|
vars.insert(kCMAKE_HIP_ARCHITECTURES);
|
|
vars.insert(kCMAKE_HIP_PLATFORM);
|
|
vars.insert(kCMAKE_HIP_RUNTIME_LIBRARY);
|
|
vars.insert(kCMAKE_ISPC_INSTRUCTION_SETS);
|
|
vars.insert(kCMAKE_ISPC_HEADER_SUFFIX);
|
|
vars.insert(kCMAKE_LINK_SEARCH_END_STATIC);
|
|
vars.insert(kCMAKE_LINK_SEARCH_START_STATIC);
|
|
vars.insert(kCMAKE_OSX_ARCHITECTURES);
|
|
vars.insert(kCMAKE_OSX_DEPLOYMENT_TARGET);
|
|
vars.insert(kCMAKE_OSX_SYSROOT);
|
|
vars.insert(kCMAKE_APPLE_ARCH_SYSROOTS);
|
|
vars.insert(kCMAKE_POSITION_INDEPENDENT_CODE);
|
|
vars.insert(kCMAKE_SYSROOT);
|
|
vars.insert(kCMAKE_SYSROOT_COMPILE);
|
|
vars.insert(kCMAKE_SYSROOT_LINK);
|
|
vars.insert(kCMAKE_WARN_DEPRECATED);
|
|
vars.emplace("CMAKE_MSVC_RUNTIME_LIBRARY"_s);
|
|
vars.emplace("CMAKE_WATCOM_RUNTIME_LIBRARY"_s);
|
|
vars.emplace("CMAKE_MSVC_DEBUG_INFORMATION_FORMAT"_s);
|
|
vars.emplace("CMAKE_CXX_COMPILER_CLANG_SCAN_DEPS"_s);
|
|
|
|
if (cmValue varListStr = this->Makefile->GetDefinition(
|
|
kCMAKE_TRY_COMPILE_PLATFORM_VARIABLES)) {
|
|
cmList varList{ *varListStr };
|
|
vars.insert(varList.begin(), varList.end());
|
|
}
|
|
|
|
if (this->Makefile->GetDefinition(kCMAKE_LINKER_TYPE)) {
|
|
// propagate various variables to support linker selection
|
|
vars.insert(kCMAKE_LINKER_TYPE);
|
|
auto defs = this->Makefile->GetDefinitions();
|
|
cmsys::RegularExpression linkerTypeDef{
|
|
"^CMAKE_[A-Za-z_-]+_USING_LINKER_"
|
|
};
|
|
for (auto const& def : defs) {
|
|
if (linkerTypeDef.find(def)) {
|
|
vars.insert(def);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this->Makefile->GetPolicyStatus(cmPolicies::CMP0083) ==
|
|
cmPolicies::NEW) {
|
|
// To ensure full support of PIE, propagate cache variables
|
|
// driving the link options
|
|
vars.insert(&c_properties[pie_property_start],
|
|
&c_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&cxx_properties[pie_property_start],
|
|
&cxx_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&cuda_properties[pie_property_start],
|
|
&cuda_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&fortran_properties[pie_property_start],
|
|
&fortran_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&hip_properties[pie_property_start],
|
|
&hip_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&objc_properties[pie_property_start],
|
|
&objc_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&objcxx_properties[pie_property_start],
|
|
&objcxx_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&ispc_properties[pie_property_start],
|
|
&ispc_properties[pie_property_start + pie_property_size]);
|
|
vars.insert(&swift_properties[pie_property_start],
|
|
&swift_properties[pie_property_start + pie_property_size]);
|
|
}
|
|
|
|
/* for the TRY_COMPILEs we want to be able to specify the architecture.
|
|
So the user can set CMAKE_OSX_ARCHITECTURES to i386;ppc and then set
|
|
CMAKE_TRY_COMPILE_OSX_ARCHITECTURES first to i386 and then to ppc to
|
|
have the tests run for each specific architecture. Since
|
|
cmLocalGenerator doesn't allow building for "the other"
|
|
architecture only via CMAKE_OSX_ARCHITECTURES.
|
|
*/
|
|
if (cmValue tcArchs = this->Makefile->GetDefinition(
|
|
kCMAKE_TRY_COMPILE_OSX_ARCHITECTURES)) {
|
|
vars.erase(kCMAKE_OSX_ARCHITECTURES);
|
|
std::string flag = cmStrCat("-DCMAKE_OSX_ARCHITECTURES=", *tcArchs);
|
|
arguments.CMakeFlags.emplace_back(std::move(flag));
|
|
cmakeVariables.emplace("CMAKE_OSX_ARCHITECTURES", *tcArchs);
|
|
}
|
|
|
|
// Pass down CMAKE_EXPERIMENTAL_* feature flags
|
|
for (std::size_t i = 0;
|
|
i < static_cast<std::size_t>(cmExperimental::Feature::Sentinel);
|
|
i++) {
|
|
auto const& data = cmExperimental::DataForFeature(
|
|
static_cast<cmExperimental::Feature>(i));
|
|
if (data.ForwardThroughTryCompile ==
|
|
cmExperimental::TryCompileCondition::Always ||
|
|
(data.ForwardThroughTryCompile ==
|
|
cmExperimental::TryCompileCondition::SkipCompilerChecks &&
|
|
arguments.CMakeInternal != "ABI"_s &&
|
|
arguments.CMakeInternal != "FEATURE_TESTING"_s)) {
|
|
vars.insert(data.Variable);
|
|
for (auto const& var : data.TryCompileVariables) {
|
|
vars.insert(var);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (std::string const& var : vars) {
|
|
if (cmValue val = this->Makefile->GetDefinition(var)) {
|
|
std::string flag = cmStrCat("-D", var, '=', *val);
|
|
arguments.CMakeFlags.emplace_back(std::move(flag));
|
|
cmakeVariables.emplace(var, *val);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this->Makefile->GetState()->UseGhsMultiIDE()) {
|
|
// Forward the GHS variables to the inner project cache.
|
|
for (std::string const& var : ghs_platform_vars) {
|
|
if (cmValue val = this->Makefile->GetDefinition(var)) {
|
|
std::string flag = cmStrCat("-D", var, "=\'", *val, '\'');
|
|
arguments.CMakeFlags.emplace_back(std::move(flag));
|
|
cmakeVariables.emplace(var, *val);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this->Makefile->GetCMakeInstance()->GetDebugTryCompile()) {
|
|
auto msg =
|
|
cmStrCat("Executing try_compile (", *arguments.CompileResultVariable,
|
|
") in:\n ", this->BinaryDirectory);
|
|
this->Makefile->IssueMessage(MessageType::LOG, msg);
|
|
}
|
|
|
|
bool erroroc = cmSystemTools::GetErrorOccurredFlag();
|
|
cmSystemTools::ResetErrorOccurredFlag();
|
|
std::string output;
|
|
// actually do the try compile now that everything is setup
|
|
int res = this->Makefile->TryCompile(
|
|
sourceDirectory, this->BinaryDirectory, projectName, targetName,
|
|
this->SrcFileSignature, cmake::NO_BUILD_PARALLEL_LEVEL,
|
|
&arguments.CMakeFlags, output);
|
|
if (erroroc) {
|
|
cmSystemTools::SetErrorOccurred();
|
|
}
|
|
|
|
// set the result var to the return value to indicate success or failure
|
|
if (arguments.NoCache) {
|
|
this->Makefile->AddDefinition(*arguments.CompileResultVariable,
|
|
(res == 0 ? "TRUE" : "FALSE"));
|
|
} else {
|
|
this->Makefile->AddCacheDefinition(
|
|
*arguments.CompileResultVariable, (res == 0 ? "TRUE" : "FALSE"),
|
|
"Result of TRY_COMPILE", cmStateEnums::INTERNAL);
|
|
}
|
|
|
|
if (arguments.OutputVariable) {
|
|
this->Makefile->AddDefinition(*arguments.OutputVariable, output);
|
|
}
|
|
|
|
if (this->SrcFileSignature) {
|
|
std::string copyFileErrorMessage;
|
|
this->FindOutputFile(targetName);
|
|
|
|
if ((res == 0) && arguments.CopyFileTo) {
|
|
std::string const& copyFile = *arguments.CopyFileTo;
|
|
cmsys::SystemTools::CopyStatus status =
|
|
cmSystemTools::CopyFileAlways(this->OutputFile, copyFile);
|
|
if (!status) {
|
|
std::string err = status.GetString();
|
|
switch (status.Path) {
|
|
case cmsys::SystemTools::CopyStatus::SourcePath:
|
|
err = cmStrCat(err, " (input)");
|
|
break;
|
|
case cmsys::SystemTools::CopyStatus::DestPath:
|
|
err = cmStrCat(err, " (output)");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
/* clang-format off */
|
|
err = cmStrCat(
|
|
"Cannot copy output executable\n"
|
|
" '", this->OutputFile, "'\n"
|
|
"to destination specified by COPY_FILE:\n"
|
|
" '", copyFile, "'\n"
|
|
"because:\n"
|
|
" ", err, "\n",
|
|
this->FindErrorMessage);
|
|
/* clang-format on */
|
|
if (!arguments.CopyFileError) {
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, err);
|
|
return cm::nullopt;
|
|
}
|
|
copyFileErrorMessage = std::move(err);
|
|
}
|
|
}
|
|
|
|
if (arguments.CopyFileError) {
|
|
std::string const& copyFileError = *arguments.CopyFileError;
|
|
this->Makefile->AddDefinition(copyFileError, copyFileErrorMessage);
|
|
}
|
|
}
|
|
|
|
cmTryCompileResult result;
|
|
if (arguments.LogDescription) {
|
|
result.LogDescription = *arguments.LogDescription;
|
|
}
|
|
result.CMakeVariables = std::move(cmakeVariables);
|
|
result.SourceDirectory = sourceDirectory;
|
|
result.BinaryDirectory = this->BinaryDirectory;
|
|
result.Variable = *arguments.CompileResultVariable;
|
|
result.VariableCached = !arguments.NoCache;
|
|
result.Output = std::move(output);
|
|
result.ExitCode = res;
|
|
return cm::optional<cmTryCompileResult>(std::move(result));
|
|
}
|
|
|
|
bool cmCoreTryCompile::IsTemporary(std::string const& path)
|
|
{
|
|
return ((path.find("CMakeTmp") != std::string::npos) ||
|
|
(path.find("CMakeScratch") != std::string::npos));
|
|
}
|
|
|
|
void cmCoreTryCompile::CleanupFiles(std::string const& binDir)
|
|
{
|
|
if (binDir.empty()) {
|
|
return;
|
|
}
|
|
|
|
if (!IsTemporary(binDir)) {
|
|
cmSystemTools::Error(cmStrCat(
|
|
"TRY_COMPILE attempt to remove -rf directory that does not contain "
|
|
"CMakeTmp or CMakeScratch: \"",
|
|
binDir, '"'));
|
|
return;
|
|
}
|
|
|
|
cmsys::Directory dir;
|
|
dir.Load(binDir);
|
|
std::set<std::string> deletedFiles;
|
|
for (unsigned long i = 0; i < dir.GetNumberOfFiles(); ++i) {
|
|
const char* fileName = dir.GetFile(i);
|
|
if (strcmp(fileName, ".") != 0 && strcmp(fileName, "..") != 0 &&
|
|
// Do not delete NFS temporary files.
|
|
!cmHasPrefix(fileName, ".nfs")) {
|
|
if (deletedFiles.insert(fileName).second) {
|
|
std::string const fullPath = cmStrCat(binDir, '/', fileName);
|
|
if (cmSystemTools::FileIsSymlink(fullPath)) {
|
|
cmSystemTools::RemoveFile(fullPath);
|
|
} else if (cmSystemTools::FileIsDirectory(fullPath)) {
|
|
this->CleanupFiles(fullPath);
|
|
cmSystemTools::RemoveADirectory(fullPath);
|
|
} else {
|
|
#ifdef _WIN32
|
|
// Sometimes anti-virus software hangs on to new files so we
|
|
// cannot delete them immediately. Try a few times.
|
|
cmSystemTools::WindowsFileRetry retry =
|
|
cmSystemTools::GetWindowsFileRetry();
|
|
cmsys::Status status;
|
|
while (!((status = cmSystemTools::RemoveFile(fullPath))) &&
|
|
--retry.Count && cmSystemTools::FileExists(fullPath)) {
|
|
cmSystemTools::Delay(retry.Delay);
|
|
}
|
|
if (retry.Count == 0)
|
|
#else
|
|
cmsys::Status status = cmSystemTools::RemoveFile(fullPath);
|
|
if (!status)
|
|
#endif
|
|
{
|
|
this->Makefile->IssueMessage(
|
|
MessageType::FATAL_ERROR,
|
|
cmStrCat("The file:\n ", fullPath,
|
|
"\ncould not be removed:\n ", status.GetString()));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (binDir.find("CMakeScratch") != std::string::npos) {
|
|
cmSystemTools::RemoveADirectory(binDir);
|
|
}
|
|
}
|
|
|
|
void cmCoreTryCompile::FindOutputFile(const std::string& targetName)
|
|
{
|
|
this->FindErrorMessage.clear();
|
|
this->OutputFile.clear();
|
|
std::string tmpOutputFile = "/";
|
|
tmpOutputFile += targetName;
|
|
|
|
if (this->Makefile->GetGlobalGenerator()->IsMultiConfig()) {
|
|
std::string const tcConfig =
|
|
this->Makefile->GetSafeDefinition("CMAKE_TRY_COMPILE_CONFIGURATION");
|
|
std::string const cfg = !tcConfig.empty()
|
|
? cmSystemTools::UpperCase(tcConfig)
|
|
: TryCompileDefaultConfig;
|
|
tmpOutputFile = cmStrCat(tmpOutputFile, '_', cfg);
|
|
}
|
|
tmpOutputFile += "_loc";
|
|
|
|
std::string command = cmStrCat(this->BinaryDirectory, tmpOutputFile);
|
|
if (!cmSystemTools::FileExists(command)) {
|
|
std::ostringstream emsg;
|
|
emsg << "Unable to find the recorded try_compile output location:\n";
|
|
emsg << cmStrCat(" ", command, "\n");
|
|
this->FindErrorMessage = emsg.str();
|
|
return;
|
|
}
|
|
|
|
std::string outputFileLocation;
|
|
cmsys::ifstream ifs(command.c_str());
|
|
cmSystemTools::GetLineFromStream(ifs, outputFileLocation);
|
|
if (!cmSystemTools::FileExists(outputFileLocation)) {
|
|
std::ostringstream emsg;
|
|
emsg << "Recorded try_compile output location doesn't exist:\n";
|
|
emsg << cmStrCat(" ", outputFileLocation, "\n");
|
|
this->FindErrorMessage = emsg.str();
|
|
return;
|
|
}
|
|
|
|
this->OutputFile = cmSystemTools::CollapseFullPath(outputFileLocation);
|
|
}
|
|
|
|
std::string cmCoreTryCompile::WriteSource(std::string const& filename,
|
|
std::string const& content,
|
|
char const* command) const
|
|
{
|
|
if (!cmSystemTools::GetFilenamePath(filename).empty()) {
|
|
const auto& msg =
|
|
cmStrCat(command, " given invalid filename \"", filename, '"');
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, msg);
|
|
return {};
|
|
}
|
|
|
|
auto filepath = cmStrCat(this->BinaryDirectory, '/', filename);
|
|
cmsys::ofstream file{ filepath.c_str(), std::ios::out };
|
|
if (!file) {
|
|
const auto& msg =
|
|
cmStrCat(command, " failed to open \"", filename, "\" for writing");
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, msg);
|
|
return {};
|
|
}
|
|
|
|
file << content;
|
|
if (!file) {
|
|
const auto& msg = cmStrCat(command, " failed to write \"", filename, '"');
|
|
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, msg);
|
|
return {};
|
|
}
|
|
|
|
file.close();
|
|
return filepath;
|
|
}
|
|
|
|
void cmCoreTryCompile::WriteTryCompileEventFields(
|
|
cmConfigureLog& log, cmTryCompileResult const& compileResult)
|
|
{
|
|
#ifndef CMAKE_BOOTSTRAP
|
|
if (compileResult.LogDescription) {
|
|
log.WriteValue("description"_s, *compileResult.LogDescription);
|
|
}
|
|
log.BeginObject("directories"_s);
|
|
log.WriteValue("source"_s, compileResult.SourceDirectory);
|
|
log.WriteValue("binary"_s, compileResult.BinaryDirectory);
|
|
log.EndObject();
|
|
if (!compileResult.CMakeVariables.empty()) {
|
|
log.WriteValue("cmakeVariables"_s, compileResult.CMakeVariables);
|
|
}
|
|
log.BeginObject("buildResult"_s);
|
|
log.WriteValue("variable"_s, compileResult.Variable);
|
|
log.WriteValue("cached"_s, compileResult.VariableCached);
|
|
log.WriteLiteralTextBlock("stdout"_s, compileResult.Output);
|
|
log.WriteValue("exitCode"_s, compileResult.ExitCode);
|
|
log.EndObject();
|
|
#endif
|
|
}
|