https://github.com/Kitware/CMake
Revision 4771c4e447c88a0e6a361d98c2c6f44ac7746ad3 authored by Brad King on 10 December 2019, 14:40:28 UTC, committed by Brad King on 10 December 2019, 14:40:28 UTC
1 parent db12745
Tip revision: 4771c4e447c88a0e6a361d98c2c6f44ac7746ad3 authored by Brad King on 10 December 2019, 14:40:28 UTC
CMake 3.16.1
CMake 3.16.1
Tip revision: 4771c4e
cmLocalGenerator.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmLocalGenerator.h"
#include "cmsys/RegularExpression.hxx"
#include "cmAlgorithms.h"
#include "cmComputeLinkInformation.h"
#include "cmCustomCommand.h"
#include "cmCustomCommandGenerator.h"
#include "cmCustomCommandLines.h"
#include "cmCustomCommandTypes.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorExpressionEvaluationFile.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalGenerator.h"
#include "cmInstallGenerator.h"
#include "cmInstallScriptGenerator.h"
#include "cmInstallTargetGenerator.h"
#include "cmLinkLineComputer.h"
#include "cmLinkLineDeviceComputer.h"
#include "cmMakefile.h"
#include "cmRulePlaceholderExpander.h"
#include "cmSourceFile.h"
#include "cmSourceFileLocation.h"
#include "cmSourceFileLocationKind.h"
#include "cmState.h"
#include "cmStateDirectory.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
#include "cmTestGenerator.h"
#include "cmVersion.h"
#include "cmake.h"
#if !defined(CMAKE_BOOTSTRAP)
# define CM_LG_ENCODE_OBJECT_NAMES
# include "cmCryptoHash.h"
#endif
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <initializer_list>
#include <iterator>
#include <sstream>
#include <unordered_set>
#include <utility>
#include <vector>
#include <cm/string_view>
#if defined(__HAIKU__)
# include <FindDirectory.h>
# include <StorageDefs.h>
#endif
// List of variables that are replaced when
// rules are expanced. These variables are
// replaced in the form <var> with GetSafeDefinition(var).
// ${LANG} is replaced in the variable first with all enabled
// languages.
static auto ruleReplaceVars = { "CMAKE_${LANG}_COMPILER",
"CMAKE_SHARED_LIBRARY_CREATE_${LANG}_FLAGS",
"CMAKE_SHARED_MODULE_CREATE_${LANG}_FLAGS",
"CMAKE_SHARED_MODULE_${LANG}_FLAGS",
"CMAKE_SHARED_LIBRARY_${LANG}_FLAGS",
"CMAKE_${LANG}_LINK_FLAGS",
"CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG",
"CMAKE_${LANG}_ARCHIVE",
"CMAKE_AR",
"CMAKE_CURRENT_SOURCE_DIR",
"CMAKE_CURRENT_BINARY_DIR",
"CMAKE_RANLIB",
"CMAKE_LINKER",
"CMAKE_MT",
"CMAKE_CUDA_HOST_COMPILER",
"CMAKE_CUDA_HOST_LINK_LAUNCHER",
"CMAKE_CL_SHOWINCLUDES_PREFIX" };
cmLocalGenerator::cmLocalGenerator(cmGlobalGenerator* gg, cmMakefile* makefile)
: cmOutputConverter(makefile->GetStateSnapshot())
, StateSnapshot(makefile->GetStateSnapshot())
, DirectoryBacktrace(makefile->GetBacktrace())
{
this->GlobalGenerator = gg;
this->Makefile = makefile;
this->AliasTargets = makefile->GetAliasTargets();
this->EmitUniversalBinaryFlags = true;
this->BackwardsCompatibility = 0;
this->BackwardsCompatibilityFinal = false;
this->ComputeObjectMaxPath();
// Canonicalize entries of the CPATH environment variable the same
// way detection of CMAKE_<LANG>_IMPLICIT_INCLUDE_DIRECTORIES does.
{
std::vector<std::string> cpath;
cmSystemTools::GetPath(cpath, "CPATH");
for (std::string& cp : cpath) {
if (cmSystemTools::FileIsFullPath(cp)) {
cp = cmSystemTools::CollapseFullPath(cp);
this->EnvCPATH.emplace(std::move(cp));
}
}
}
std::vector<std::string> enabledLanguages =
this->GetState()->GetEnabledLanguages();
if (const char* sysrootCompile =
this->Makefile->GetDefinition("CMAKE_SYSROOT_COMPILE")) {
this->CompilerSysroot = sysrootCompile;
} else {
this->CompilerSysroot = this->Makefile->GetSafeDefinition("CMAKE_SYSROOT");
}
if (const char* sysrootLink =
this->Makefile->GetDefinition("CMAKE_SYSROOT_LINK")) {
this->LinkerSysroot = sysrootLink;
} else {
this->LinkerSysroot = this->Makefile->GetSafeDefinition("CMAKE_SYSROOT");
}
for (std::string const& lang : enabledLanguages) {
if (lang == "NONE") {
continue;
}
this->Compilers["CMAKE_" + lang + "_COMPILER"] = lang;
this->VariableMappings["CMAKE_" + lang + "_COMPILER"] =
this->Makefile->GetSafeDefinition("CMAKE_" + lang + "_COMPILER");
std::string const& compilerArg1 = "CMAKE_" + lang + "_COMPILER_ARG1";
std::string const& compilerTarget = "CMAKE_" + lang + "_COMPILER_TARGET";
std::string const& compilerOptionTarget =
"CMAKE_" + lang + "_COMPILE_OPTIONS_TARGET";
std::string const& compilerExternalToolchain =
"CMAKE_" + lang + "_COMPILER_EXTERNAL_TOOLCHAIN";
std::string const& compilerOptionExternalToolchain =
"CMAKE_" + lang + "_COMPILE_OPTIONS_EXTERNAL_TOOLCHAIN";
std::string const& compilerOptionSysroot =
"CMAKE_" + lang + "_COMPILE_OPTIONS_SYSROOT";
this->VariableMappings[compilerArg1] =
this->Makefile->GetSafeDefinition(compilerArg1);
this->VariableMappings[compilerTarget] =
this->Makefile->GetSafeDefinition(compilerTarget);
this->VariableMappings[compilerOptionTarget] =
this->Makefile->GetSafeDefinition(compilerOptionTarget);
this->VariableMappings[compilerExternalToolchain] =
this->Makefile->GetSafeDefinition(compilerExternalToolchain);
this->VariableMappings[compilerOptionExternalToolchain] =
this->Makefile->GetSafeDefinition(compilerOptionExternalToolchain);
this->VariableMappings[compilerOptionSysroot] =
this->Makefile->GetSafeDefinition(compilerOptionSysroot);
for (std::string replaceVar : ruleReplaceVars) {
if (replaceVar.find("${LANG}") != std::string::npos) {
cmSystemTools::ReplaceString(replaceVar, "${LANG}", lang);
}
this->VariableMappings[replaceVar] =
this->Makefile->GetSafeDefinition(replaceVar);
}
}
}
cmRulePlaceholderExpander* cmLocalGenerator::CreateRulePlaceholderExpander()
const
{
return new cmRulePlaceholderExpander(this->Compilers, this->VariableMappings,
this->CompilerSysroot,
this->LinkerSysroot);
}
cmLocalGenerator::~cmLocalGenerator()
{
cmDeleteAll(this->GeneratorTargets);
cmDeleteAll(this->OwnedImportedGeneratorTargets);
}
void cmLocalGenerator::IssueMessage(MessageType t,
std::string const& text) const
{
this->GetCMakeInstance()->IssueMessage(t, text, this->DirectoryBacktrace);
}
void cmLocalGenerator::ComputeObjectMaxPath()
{
// Choose a maximum object file name length.
#if defined(_WIN32) || defined(__CYGWIN__)
this->ObjectPathMax = 250;
#else
this->ObjectPathMax = 1000;
#endif
const char* plen = this->Makefile->GetDefinition("CMAKE_OBJECT_PATH_MAX");
if (plen && *plen) {
unsigned int pmax;
if (sscanf(plen, "%u", &pmax) == 1) {
if (pmax >= 128) {
this->ObjectPathMax = pmax;
} else {
std::ostringstream w;
w << "CMAKE_OBJECT_PATH_MAX is set to " << pmax
<< ", which is less than the minimum of 128. "
<< "The value will be ignored.";
this->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
}
} else {
std::ostringstream w;
w << "CMAKE_OBJECT_PATH_MAX is set to \"" << plen
<< "\", which fails to parse as a positive integer. "
<< "The value will be ignored.";
this->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
}
}
this->ObjectMaxPathViolations.clear();
}
static void MoveSystemIncludesToEnd(std::vector<std::string>& includeDirs,
const std::string& config,
const std::string& lang,
const cmGeneratorTarget* target)
{
if (!target) {
return;
}
std::stable_sort(
includeDirs.begin(), includeDirs.end(),
[&target, &config, &lang](std::string const& a, std::string const& b) {
return !target->IsSystemIncludeDirectory(a, config, lang) &&
target->IsSystemIncludeDirectory(b, config, lang);
});
}
static void MoveSystemIncludesToEnd(std::vector<BT<std::string>>& includeDirs,
const std::string& config,
const std::string& lang,
const cmGeneratorTarget* target)
{
if (!target) {
return;
}
std::stable_sort(includeDirs.begin(), includeDirs.end(),
[target, &config, &lang](BT<std::string> const& a,
BT<std::string> const& b) {
return !target->IsSystemIncludeDirectory(a.Value, config,
lang) &&
target->IsSystemIncludeDirectory(b.Value, config, lang);
});
}
void cmLocalGenerator::TraceDependencies()
{
// Generate the rule files for each target.
const std::vector<cmGeneratorTarget*>& targets = this->GetGeneratorTargets();
for (cmGeneratorTarget* target : targets) {
if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
continue;
}
target->TraceDependencies();
}
}
void cmLocalGenerator::GenerateTestFiles()
{
if (!this->Makefile->IsOn("CMAKE_TESTING_ENABLED")) {
return;
}
// Compute the set of configurations.
std::vector<std::string> configurationTypes;
const std::string& config =
this->Makefile->GetConfigurations(configurationTypes, false);
std::string file =
cmStrCat(this->StateSnapshot.GetDirectory().GetCurrentBinary(),
"/CTestTestfile.cmake");
cmGeneratedFileStream fout(file);
fout.SetCopyIfDifferent(true);
fout << "# CMake generated Testfile for " << std::endl
<< "# Source directory: "
<< this->StateSnapshot.GetDirectory().GetCurrentSource() << std::endl
<< "# Build directory: "
<< this->StateSnapshot.GetDirectory().GetCurrentBinary() << std::endl
<< "# " << std::endl
<< "# This file includes the relevant testing commands "
<< "required for " << std::endl
<< "# testing this directory and lists subdirectories to "
<< "be tested as well." << std::endl;
const char* testIncludeFile =
this->Makefile->GetProperty("TEST_INCLUDE_FILE");
if (testIncludeFile) {
fout << "include(\"" << testIncludeFile << "\")" << std::endl;
}
const char* testIncludeFiles =
this->Makefile->GetProperty("TEST_INCLUDE_FILES");
if (testIncludeFiles) {
std::vector<std::string> includesList = cmExpandedList(testIncludeFiles);
for (std::string const& i : includesList) {
fout << "include(\"" << i << "\")" << std::endl;
}
}
// Ask each test generator to write its code.
std::vector<cmTestGenerator*> const& testers =
this->Makefile->GetTestGenerators();
for (cmTestGenerator* tester : testers) {
tester->Compute(this);
tester->Generate(fout, config, configurationTypes);
}
using vec_t = std::vector<cmStateSnapshot>;
vec_t const& children = this->Makefile->GetStateSnapshot().GetChildren();
std::string parentBinDir = this->GetCurrentBinaryDirectory();
for (cmStateSnapshot const& i : children) {
// TODO: Use add_subdirectory instead?
std::string outP = i.GetDirectory().GetCurrentBinary();
outP = this->MaybeConvertToRelativePath(parentBinDir, outP);
outP = cmOutputConverter::EscapeForCMake(outP);
fout << "subdirs(" << outP << ")" << std::endl;
}
// Add directory labels property
const char* directoryLabels =
this->Makefile->GetDefinition("CMAKE_DIRECTORY_LABELS");
const char* labels = this->Makefile->GetProperty("LABELS");
if (labels || directoryLabels) {
fout << "set_directory_properties(PROPERTIES LABELS ";
if (labels) {
fout << cmOutputConverter::EscapeForCMake(labels);
}
if (labels && directoryLabels) {
fout << ";";
}
if (directoryLabels) {
fout << cmOutputConverter::EscapeForCMake(directoryLabels);
}
fout << ")" << std::endl;
}
}
void cmLocalGenerator::CreateEvaluationFileOutputs()
{
std::vector<std::string> const& configs =
this->Makefile->GetGeneratorConfigs();
for (std::string const& c : configs) {
this->CreateEvaluationFileOutputs(c);
}
}
void cmLocalGenerator::CreateEvaluationFileOutputs(std::string const& config)
{
std::vector<cmGeneratorExpressionEvaluationFile*> ef =
this->Makefile->GetEvaluationFiles();
for (cmGeneratorExpressionEvaluationFile* geef : ef) {
geef->CreateOutputFile(this, config);
}
}
void cmLocalGenerator::ProcessEvaluationFiles(
std::vector<std::string>& generatedFiles)
{
for (cmGeneratorExpressionEvaluationFile* geef :
this->Makefile->GetEvaluationFiles()) {
geef->Generate(this);
if (cmSystemTools::GetFatalErrorOccured()) {
return;
}
std::vector<std::string> files = geef->GetFiles();
std::sort(files.begin(), files.end());
std::vector<std::string> intersection;
std::set_intersection(files.begin(), files.end(), generatedFiles.begin(),
generatedFiles.end(),
std::back_inserter(intersection));
if (!intersection.empty()) {
cmSystemTools::Error("Files to be generated by multiple different "
"commands: " +
cmWrap('"', intersection, '"', " "));
return;
}
cmAppend(generatedFiles, files);
std::inplace_merge(generatedFiles.begin(),
generatedFiles.end() - files.size(),
generatedFiles.end());
}
}
void cmLocalGenerator::GenerateInstallRules()
{
// Compute the install prefix.
const char* prefix = this->Makefile->GetDefinition("CMAKE_INSTALL_PREFIX");
#if defined(_WIN32) && !defined(__CYGWIN__)
std::string prefix_win32;
if (!prefix) {
if (!cmSystemTools::GetEnv("SystemDrive", prefix_win32)) {
prefix_win32 = "C:";
}
const char* project_name = this->Makefile->GetDefinition("PROJECT_NAME");
if (project_name && project_name[0]) {
prefix_win32 += "/Program Files/";
prefix_win32 += project_name;
} else {
prefix_win32 += "/InstalledCMakeProject";
}
prefix = prefix_win32.c_str();
}
#elif defined(__HAIKU__)
char dir[B_PATH_NAME_LENGTH];
if (!prefix) {
if (find_directory(B_SYSTEM_DIRECTORY, -1, false, dir, sizeof(dir)) ==
B_OK) {
prefix = dir;
} else {
prefix = "/boot/system";
}
}
#else
if (!prefix) {
prefix = "/usr/local";
}
#endif
if (const char* stagingPrefix =
this->Makefile->GetDefinition("CMAKE_STAGING_PREFIX")) {
prefix = stagingPrefix;
}
// Compute the set of configurations.
std::vector<std::string> configurationTypes;
const std::string& config =
this->Makefile->GetConfigurations(configurationTypes, false);
// Choose a default install configuration.
std::string default_config = config;
const char* default_order[] = { "RELEASE", "MINSIZEREL", "RELWITHDEBINFO",
"DEBUG", nullptr };
for (const char** c = default_order; *c && default_config.empty(); ++c) {
for (std::string const& configurationType : configurationTypes) {
if (cmSystemTools::UpperCase(configurationType) == *c) {
default_config = configurationType;
}
}
}
if (default_config.empty() && !configurationTypes.empty()) {
default_config = configurationTypes[0];
}
// Create the install script file.
std::string file = this->StateSnapshot.GetDirectory().GetCurrentBinary();
std::string homedir = this->GetState()->GetBinaryDirectory();
int toplevel_install = 0;
if (file == homedir) {
toplevel_install = 1;
}
file += "/cmake_install.cmake";
cmGeneratedFileStream fout(file);
fout.SetCopyIfDifferent(true);
// Write the header.
fout << "# Install script for directory: "
<< this->StateSnapshot.GetDirectory().GetCurrentSource() << std::endl
<< std::endl;
fout << "# Set the install prefix" << std::endl
<< "if(NOT DEFINED CMAKE_INSTALL_PREFIX)" << std::endl
<< " set(CMAKE_INSTALL_PREFIX \"" << prefix << "\")" << std::endl
<< "endif()" << std::endl
<< R"(string(REGEX REPLACE "/$" "" CMAKE_INSTALL_PREFIX )"
<< "\"${CMAKE_INSTALL_PREFIX}\")" << std::endl
<< std::endl;
// Write support code for generating per-configuration install rules.
/* clang-format off */
fout <<
"# Set the install configuration name.\n"
"if(NOT DEFINED CMAKE_INSTALL_CONFIG_NAME)\n"
" if(BUILD_TYPE)\n"
" string(REGEX REPLACE \"^[^A-Za-z0-9_]+\" \"\"\n"
" CMAKE_INSTALL_CONFIG_NAME \"${BUILD_TYPE}\")\n"
" else()\n"
" set(CMAKE_INSTALL_CONFIG_NAME \"" << default_config << "\")\n"
" endif()\n"
" message(STATUS \"Install configuration: "
"\\\"${CMAKE_INSTALL_CONFIG_NAME}\\\"\")\n"
"endif()\n"
"\n";
/* clang-format on */
// Write support code for dealing with component-specific installs.
/* clang-format off */
fout <<
"# Set the component getting installed.\n"
"if(NOT CMAKE_INSTALL_COMPONENT)\n"
" if(COMPONENT)\n"
" message(STATUS \"Install component: \\\"${COMPONENT}\\\"\")\n"
" set(CMAKE_INSTALL_COMPONENT \"${COMPONENT}\")\n"
" else()\n"
" set(CMAKE_INSTALL_COMPONENT)\n"
" endif()\n"
"endif()\n"
"\n";
/* clang-format on */
// Copy user-specified install options to the install code.
if (const char* so_no_exe =
this->Makefile->GetDefinition("CMAKE_INSTALL_SO_NO_EXE")) {
/* clang-format off */
fout <<
"# Install shared libraries without execute permission?\n"
"if(NOT DEFINED CMAKE_INSTALL_SO_NO_EXE)\n"
" set(CMAKE_INSTALL_SO_NO_EXE \"" << so_no_exe << "\")\n"
"endif()\n"
"\n";
/* clang-format on */
}
// Copy cmake cross compile state to install code.
if (const char* crosscompiling =
this->Makefile->GetDefinition("CMAKE_CROSSCOMPILING")) {
/* clang-format off */
fout <<
"# Is this installation the result of a crosscompile?\n"
"if(NOT DEFINED CMAKE_CROSSCOMPILING)\n"
" set(CMAKE_CROSSCOMPILING \"" << crosscompiling << "\")\n"
"endif()\n"
"\n";
/* clang-format on */
}
// Write default directory permissions.
if (const char* defaultDirPermissions = this->Makefile->GetDefinition(
"CMAKE_INSTALL_DEFAULT_DIRECTORY_PERMISSIONS")) {
/* clang-format off */
fout <<
"# Set default install directory permissions.\n"
"if(NOT DEFINED CMAKE_INSTALL_DEFAULT_DIRECTORY_PERMISSIONS)\n"
" set(CMAKE_INSTALL_DEFAULT_DIRECTORY_PERMISSIONS \""
<< defaultDirPermissions << "\")\n"
"endif()\n"
"\n";
/* clang-format on */
}
// Ask each install generator to write its code.
cmPolicies::PolicyStatus status = this->GetPolicyStatus(cmPolicies::CMP0082);
std::vector<cmInstallGenerator*> const& installers =
this->Makefile->GetInstallGenerators();
bool haveSubdirectoryInstall = false;
bool haveInstallAfterSubdirectory = false;
if (status == cmPolicies::WARN) {
for (cmInstallGenerator* installer : installers) {
installer->CheckCMP0082(haveSubdirectoryInstall,
haveInstallAfterSubdirectory);
installer->Generate(fout, config, configurationTypes);
}
} else {
for (cmInstallGenerator* installer : installers) {
installer->Generate(fout, config, configurationTypes);
}
}
// Write rules from old-style specification stored in targets.
this->GenerateTargetInstallRules(fout, config, configurationTypes);
// Include install scripts from subdirectories.
switch (status) {
case cmPolicies::WARN:
if (haveInstallAfterSubdirectory &&
this->Makefile->PolicyOptionalWarningEnabled(
"CMAKE_POLICY_WARNING_CMP0082")) {
std::ostringstream e;
e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0082) << "\n";
this->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
}
CM_FALLTHROUGH;
case cmPolicies::OLD: {
std::vector<cmStateSnapshot> children =
this->Makefile->GetStateSnapshot().GetChildren();
if (!children.empty()) {
fout << "if(NOT CMAKE_INSTALL_LOCAL_ONLY)\n";
fout << " # Include the install script for each subdirectory.\n";
for (cmStateSnapshot const& c : children) {
if (!c.GetDirectory().GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
std::string odir = c.GetDirectory().GetCurrentBinary();
cmSystemTools::ConvertToUnixSlashes(odir);
fout << " include(\"" << odir << "/cmake_install.cmake\")"
<< std::endl;
}
}
fout << "\n";
fout << "endif()\n\n";
}
} break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
// NEW behavior is handled in
// cmInstallSubdirectoryGenerator::GenerateScript()
break;
}
// Record the install manifest.
if (toplevel_install) {
/* clang-format off */
fout <<
"if(CMAKE_INSTALL_COMPONENT)\n"
" set(CMAKE_INSTALL_MANIFEST \"install_manifest_"
"${CMAKE_INSTALL_COMPONENT}.txt\")\n"
"else()\n"
" set(CMAKE_INSTALL_MANIFEST \"install_manifest.txt\")\n"
"endif()\n"
"\n"
"string(REPLACE \";\" \"\\n\" CMAKE_INSTALL_MANIFEST_CONTENT\n"
" \"${CMAKE_INSTALL_MANIFEST_FILES}\")\n"
"file(WRITE \"" << homedir << "/${CMAKE_INSTALL_MANIFEST}\"\n"
" \"${CMAKE_INSTALL_MANIFEST_CONTENT}\")\n";
/* clang-format on */
}
}
void cmLocalGenerator::AddGeneratorTarget(cmGeneratorTarget* gt)
{
this->GeneratorTargets.push_back(gt);
this->GeneratorTargetSearchIndex.emplace(gt->GetName(), gt);
this->GlobalGenerator->IndexGeneratorTarget(gt);
}
void cmLocalGenerator::AddImportedGeneratorTarget(cmGeneratorTarget* gt)
{
this->ImportedGeneratorTargets.emplace(gt->GetName(), gt);
this->GlobalGenerator->IndexGeneratorTarget(gt);
}
void cmLocalGenerator::AddOwnedImportedGeneratorTarget(cmGeneratorTarget* gt)
{
this->OwnedImportedGeneratorTargets.push_back(gt);
}
cmGeneratorTarget* cmLocalGenerator::FindLocalNonAliasGeneratorTarget(
const std::string& name) const
{
auto ti = this->GeneratorTargetSearchIndex.find(name);
if (ti != this->GeneratorTargetSearchIndex.end()) {
return ti->second;
}
return nullptr;
}
void cmLocalGenerator::ComputeTargetManifest()
{
// Collect the set of configuration types.
std::vector<std::string> configNames;
this->Makefile->GetConfigurations(configNames);
if (configNames.empty()) {
configNames.emplace_back();
}
// Add our targets to the manifest for each configuration.
const std::vector<cmGeneratorTarget*>& targets = this->GetGeneratorTargets();
for (cmGeneratorTarget* target : targets) {
if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
continue;
}
for (std::string const& c : configNames) {
target->ComputeTargetManifest(c);
}
}
}
bool cmLocalGenerator::ComputeTargetCompileFeatures()
{
// Collect the set of configuration types.
std::vector<std::string> configNames;
this->Makefile->GetConfigurations(configNames);
if (configNames.empty()) {
configNames.emplace_back();
}
using LanguagePair = std::pair<std::string, std::string>;
std::vector<LanguagePair> pairedLanguages{ { "OBJC", "C" },
{ "OBJCXX", "CXX" } };
std::set<LanguagePair> objcEnabledLanguages;
for (auto const& lang : pairedLanguages) {
if (this->Makefile->GetState()->GetLanguageEnabled(lang.first)) {
objcEnabledLanguages.insert(lang);
}
}
// Process compile features of all targets.
const std::vector<cmGeneratorTarget*>& targets = this->GetGeneratorTargets();
for (cmGeneratorTarget* target : targets) {
for (std::string const& c : configNames) {
if (!target->ComputeCompileFeatures(c)) {
return false;
}
}
// Now that C/C++ _STANDARD values have been computed
// set the values to ObjC/ObjCXX _STANDARD variables
if (target->GetType() != cmStateEnums::INTERFACE_LIBRARY) {
auto copyStandardToObjLang = [&](LanguagePair const& lang) -> bool {
if (!target->GetProperty(cmStrCat(lang.first, "_STANDARD"))) {
auto* standard =
target->GetProperty(cmStrCat(lang.second, "_STANDARD"));
if (!standard) {
standard = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", lang.second, "_STANDARD_DEFAULT"));
}
target->Target->SetProperty(cmStrCat(lang.first, "_STANDARD"),
standard);
return true;
}
return false;
};
auto copyPropertyToObjLang = [&](LanguagePair const& lang,
const char* property) {
if (!target->GetProperty(cmStrCat(lang.first, property)) &&
target->GetProperty(cmStrCat(lang.second, property))) {
target->Target->SetProperty(
cmStrCat(lang.first, property),
target->GetProperty(cmStrCat(lang.second, property)));
}
};
for (auto const& lang : objcEnabledLanguages) {
if (copyStandardToObjLang(lang)) {
copyPropertyToObjLang(lang, "_STANDARD_REQUIRED");
copyPropertyToObjLang(lang, "_EXTENSIONS");
}
}
}
}
return true;
}
bool cmLocalGenerator::IsRootMakefile() const
{
return !this->StateSnapshot.GetBuildsystemDirectoryParent().IsValid();
}
cmState* cmLocalGenerator::GetState() const
{
return this->GlobalGenerator->GetCMakeInstance()->GetState();
}
cmStateSnapshot cmLocalGenerator::GetStateSnapshot() const
{
return this->Makefile->GetStateSnapshot();
}
const char* cmLocalGenerator::GetRuleLauncher(cmGeneratorTarget* target,
const std::string& prop)
{
if (target) {
return target->GetProperty(prop);
}
return this->Makefile->GetProperty(prop);
}
std::string cmLocalGenerator::ConvertToIncludeReference(
std::string const& path, OutputFormat format, bool forceFullPaths)
{
static_cast<void>(forceFullPaths);
return this->ConvertToOutputForExisting(path, format);
}
std::string cmLocalGenerator::GetIncludeFlags(
const std::vector<std::string>& includeDirs, cmGeneratorTarget* target,
const std::string& lang, bool forceFullPaths, bool forResponseFile,
const std::string& config)
{
if (lang.empty()) {
return "";
}
std::vector<std::string> includes = includeDirs;
MoveSystemIncludesToEnd(includes, config, lang, target);
OutputFormat shellFormat = forResponseFile ? RESPONSE : SHELL;
std::ostringstream includeFlags;
std::string const& includeFlag =
this->Makefile->GetSafeDefinition(cmStrCat("CMAKE_INCLUDE_FLAG_", lang));
const char* sep =
this->Makefile->GetDefinition(cmStrCat("CMAKE_INCLUDE_FLAG_SEP_", lang));
bool quotePaths = false;
if (this->Makefile->GetDefinition("CMAKE_QUOTE_INCLUDE_PATHS")) {
quotePaths = true;
}
bool repeatFlag = true;
// should the include flag be repeated like ie. -IA -IB
if (!sep) {
sep = " ";
} else {
// if there is a separator then the flag is not repeated but is only
// given once i.e. -classpath a:b:c
repeatFlag = false;
}
// Support special system include flag if it is available and the
// normal flag is repeated for each directory.
const char* sysIncludeFlag = nullptr;
if (repeatFlag) {
sysIncludeFlag = this->Makefile->GetDefinition(
cmStrCat("CMAKE_INCLUDE_SYSTEM_FLAG_", lang));
}
const char* fwSearchFlag = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", lang, "_FRAMEWORK_SEARCH_FLAG"));
const char* sysFwSearchFlag = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", lang, "_SYSTEM_FRAMEWORK_SEARCH_FLAG"));
bool flagUsed = false;
std::set<std::string> emitted;
#ifdef __APPLE__
emitted.insert("/System/Library/Frameworks");
#endif
for (std::string const& i : includes) {
if (fwSearchFlag && *fwSearchFlag && this->Makefile->IsOn("APPLE") &&
cmSystemTools::IsPathToFramework(i)) {
std::string const frameworkDir =
cmSystemTools::CollapseFullPath(cmStrCat(i, "/../"));
if (emitted.insert(frameworkDir).second) {
if (sysFwSearchFlag && target &&
target->IsSystemIncludeDirectory(i, config, lang)) {
includeFlags << sysFwSearchFlag;
} else {
includeFlags << fwSearchFlag;
}
includeFlags << this->ConvertToOutputFormat(frameworkDir, shellFormat)
<< " ";
}
continue;
}
if (!flagUsed || repeatFlag) {
if (sysIncludeFlag && target &&
target->IsSystemIncludeDirectory(i, config, lang)) {
includeFlags << sysIncludeFlag;
} else {
includeFlags << includeFlag;
}
flagUsed = true;
}
std::string includePath =
this->ConvertToIncludeReference(i, shellFormat, forceFullPaths);
if (quotePaths && !includePath.empty() && includePath.front() != '\"') {
includeFlags << "\"";
}
includeFlags << includePath;
if (quotePaths && !includePath.empty() && includePath.front() != '\"') {
includeFlags << "\"";
}
includeFlags << sep;
}
std::string flags = includeFlags.str();
// remove trailing separators
if ((sep[0] != ' ') && !flags.empty() && flags.back() == sep[0]) {
flags.back() = ' ';
}
return flags;
}
void cmLocalGenerator::AddCompileOptions(std::string& flags,
cmGeneratorTarget* target,
const std::string& lang,
const std::string& config)
{
std::vector<BT<std::string>> tmpFlags;
this->AddCompileOptions(tmpFlags, target, lang, config);
this->AppendFlags(flags, tmpFlags);
}
void cmLocalGenerator::AddCompileOptions(std::vector<BT<std::string>>& flags,
cmGeneratorTarget* target,
const std::string& lang,
const std::string& config)
{
std::string langFlagRegexVar = std::string("CMAKE_") + lang + "_FLAG_REGEX";
if (const char* langFlagRegexStr =
this->Makefile->GetDefinition(langFlagRegexVar)) {
// Filter flags acceptable to this language.
if (const char* targetFlags = target->GetProperty("COMPILE_FLAGS")) {
std::vector<std::string> opts;
cmSystemTools::ParseWindowsCommandLine(targetFlags, opts);
// Re-escape these flags since COMPILE_FLAGS were already parsed
// as a command line above.
std::string compileOpts;
this->AppendCompileOptions(compileOpts, opts, langFlagRegexStr);
if (!compileOpts.empty()) {
flags.emplace_back(std::move(compileOpts));
}
}
std::vector<BT<std::string>> targetCompileOpts =
target->GetCompileOptions(config, lang);
// COMPILE_OPTIONS are escaped.
this->AppendCompileOptions(flags, targetCompileOpts, langFlagRegexStr);
} else {
// Use all flags.
if (const char* targetFlags = target->GetProperty("COMPILE_FLAGS")) {
// COMPILE_FLAGS are not escaped for historical reasons.
std::string compileFlags;
this->AppendFlags(compileFlags, targetFlags);
if (!compileFlags.empty()) {
flags.emplace_back(std::move(compileFlags));
}
}
std::vector<BT<std::string>> targetCompileOpts =
target->GetCompileOptions(config, lang);
// COMPILE_OPTIONS are escaped.
this->AppendCompileOptions(flags, targetCompileOpts);
}
for (auto const& it : target->GetMaxLanguageStandards()) {
const char* standard = target->GetProperty(it.first + "_STANDARD");
if (!standard) {
continue;
}
if (this->Makefile->IsLaterStandard(it.first, standard, it.second)) {
std::ostringstream e;
e << "The COMPILE_FEATURES property of target \"" << target->GetName()
<< "\" was evaluated when computing the link "
"implementation, and the \""
<< it.first << "_STANDARD\" was \"" << it.second
<< "\" for that computation. Computing the "
"COMPILE_FEATURES based on the link implementation resulted in a "
"higher \""
<< it.first << "_STANDARD\" \"" << standard
<< "\". "
"This is not permitted. The COMPILE_FEATURES may not both depend "
"on "
"and be depended on by the link implementation."
<< std::endl;
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
return;
}
}
std::string compReqFlag;
this->AddCompilerRequirementFlag(compReqFlag, target, lang);
if (!compReqFlag.empty()) {
flags.emplace_back(std::move(compReqFlag));
}
// Add compile flag for the MSVC compiler only.
cmMakefile* mf = this->GetMakefile();
if (const char* jmc =
mf->GetDefinition("CMAKE_" + lang + "_COMPILE_OPTIONS_JMC")) {
// Handle Just My Code debugging flags, /JMC.
// If the target is a Managed C++ one, /JMC is not compatible.
if (target->GetManagedType(config) !=
cmGeneratorTarget::ManagedType::Managed) {
// add /JMC flags if target property VS_JUST_MY_CODE_DEBUGGING is set
// to ON
if (char const* jmcExprGen =
target->GetProperty("VS_JUST_MY_CODE_DEBUGGING")) {
std::string isJMCEnabled =
cmGeneratorExpression::Evaluate(jmcExprGen, this, config);
if (cmIsOn(isJMCEnabled)) {
std::vector<std::string> optVec = cmExpandedList(jmc);
std::string jmcFlags;
this->AppendCompileOptions(jmcFlags, optVec);
if (!jmcFlags.empty()) {
flags.emplace_back(std::move(jmcFlags));
}
}
}
}
}
}
std::vector<BT<std::string>> cmLocalGenerator::GetIncludeDirectoriesImplicit(
cmGeneratorTarget const* target, std::string const& lang,
std::string const& config, bool stripImplicitDirs,
bool appendAllImplicitDirs) const
{
std::vector<BT<std::string>> result;
// Do not repeat an include path.
std::set<std::string> emitted;
auto emitDir = [&result, &emitted](std::string const& dir) {
if (emitted.insert(dir).second) {
result.emplace_back(dir);
}
};
auto emitBT = [&result, &emitted](BT<std::string> const& dir) {
if (emitted.insert(dir.Value).second) {
result.emplace_back(dir);
}
};
// When automatic include directories are requested for a build then
// include the source and binary directories at the beginning of the
// include path to approximate include file behavior for an
// in-source build. This does not account for the case of a source
// file in a subdirectory of the current source directory but we
// cannot fix this because not all native build tools support
// per-source-file include paths.
if (this->Makefile->IsOn("CMAKE_INCLUDE_CURRENT_DIR")) {
// Current binary directory
emitDir(this->StateSnapshot.GetDirectory().GetCurrentBinary());
// Current source directory
emitDir(this->StateSnapshot.GetDirectory().GetCurrentSource());
}
if (!target) {
return result;
}
// Standard include directories to be added unconditionally at the end.
// These are intended to simulate additional implicit include directories.
std::vector<std::string> userStandardDirs;
{
std::string const value = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", lang, "_STANDARD_INCLUDE_DIRECTORIES"));
cmExpandList(value, userStandardDirs);
for (std::string& usd : userStandardDirs) {
cmSystemTools::ConvertToUnixSlashes(usd);
}
}
// Implicit include directories
std::vector<std::string> implicitDirs;
std::set<std::string> implicitSet;
// Include directories to be excluded as if they were implicit.
std::set<std::string> implicitExclude;
{
// Raw list of implicit include directories
// Start with "standard" directories that we unconditionally add below.
std::vector<std::string> impDirVec = userStandardDirs;
// Load implicit include directories for this language.
// We ignore this for Fortran because:
// * There are no standard library headers to avoid overriding.
// * Compilers like gfortran do not search their own implicit include
// directories for modules ('.mod' files).
if (lang != "Fortran") {
const char* value = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", lang, "_IMPLICIT_INCLUDE_DIRECTORIES"));
if (value != nullptr) {
size_t const impDirVecOldSize = impDirVec.size();
cmExpandList(value, impDirVec);
// FIXME: Use cmRange with 'advance()' when it supports non-const.
for (size_t i = impDirVecOldSize; i < impDirVec.size(); ++i) {
cmSystemTools::ConvertToUnixSlashes(impDirVec[i]);
}
}
}
// The Platform/UnixPaths module used to hard-code /usr/include for C, CXX,
// and CUDA in CMAKE_<LANG>_IMPLICIT_INCLUDE_DIRECTORIES, but those
// variables are now computed. On macOS the /usr/include directory is
// inside the platform SDK so the computed value does not contain it
// directly. In this case adding -I/usr/include can hide SDK headers so we
// must still exclude it.
if ((lang == "C" || lang == "CXX" || lang == "CUDA") &&
!cmContains(impDirVec, "/usr/include") &&
std::find_if(impDirVec.begin(), impDirVec.end(),
[](std::string const& d) {
return cmHasLiteralSuffix(d, "/usr/include");
}) != impDirVec.end()) {
// Only exclude this hard coded path for backwards compatibility.
implicitExclude.emplace("/usr/include");
}
for (std::string const& i : impDirVec) {
if (implicitSet.insert(cmSystemTools::GetRealPath(i)).second) {
implicitDirs.emplace_back(i);
}
}
}
// Checks if this is not an excluded (implicit) include directory.
auto notExcluded = [this, &implicitSet, &implicitExclude,
&lang](std::string const& dir) {
return (
// Do not exclude directories that are not in an excluded set.
((!cmContains(implicitSet, cmSystemTools::GetRealPath(dir))) &&
(!cmContains(implicitExclude, dir)))
// Do not exclude entries of the CPATH environment variable even though
// they are implicitly searched by the compiler. They are meant to be
// user-specified directories that can be re-ordered or converted to
// -isystem without breaking real compiler builtin headers.
|| ((lang == "C" || lang == "CXX") && cmContains(this->EnvCPATH, dir)));
};
// Get the target-specific include directories.
std::vector<BT<std::string>> userDirs =
target->GetIncludeDirectories(config, lang);
// Support putting all the in-project include directories first if
// it is requested by the project.
if (this->Makefile->IsOn("CMAKE_INCLUDE_DIRECTORIES_PROJECT_BEFORE")) {
std::string const& topSourceDir = this->GetState()->GetSourceDirectory();
std::string const& topBinaryDir = this->GetState()->GetBinaryDirectory();
for (BT<std::string> const& udr : userDirs) {
// Emit this directory only if it is a subdirectory of the
// top-level source or binary tree.
if (cmSystemTools::ComparePath(udr.Value, topSourceDir) ||
cmSystemTools::ComparePath(udr.Value, topBinaryDir) ||
cmSystemTools::IsSubDirectory(udr.Value, topSourceDir) ||
cmSystemTools::IsSubDirectory(udr.Value, topBinaryDir)) {
if (notExcluded(udr.Value)) {
emitBT(udr);
}
}
}
}
// Emit remaining non implicit user direcories.
for (BT<std::string> const& udr : userDirs) {
if (notExcluded(udr.Value)) {
emitBT(udr);
}
}
// Sort result
MoveSystemIncludesToEnd(result, config, lang, target);
// Append standard include directories for this language.
userDirs.reserve(userDirs.size() + userStandardDirs.size());
for (std::string& usd : userStandardDirs) {
emitDir(usd);
userDirs.emplace_back(std::move(usd));
}
// Append compiler implicit include directories
if (!stripImplicitDirs) {
// Append implicit directories that were requested by the user only
for (BT<std::string> const& udr : userDirs) {
if (cmContains(implicitSet, cmSystemTools::GetRealPath(udr.Value))) {
emitBT(udr);
}
}
// Append remaining implicit directories (on demand)
if (appendAllImplicitDirs) {
for (std::string& imd : implicitDirs) {
emitDir(imd);
}
}
}
return result;
}
void cmLocalGenerator::GetIncludeDirectoriesImplicit(
std::vector<std::string>& dirs, cmGeneratorTarget const* target,
const std::string& lang, const std::string& config, bool stripImplicitDirs,
bool appendAllImplicitDirs) const
{
std::vector<BT<std::string>> tmp = this->GetIncludeDirectoriesImplicit(
target, lang, config, stripImplicitDirs, appendAllImplicitDirs);
dirs.reserve(dirs.size() + tmp.size());
for (BT<std::string>& v : tmp) {
dirs.emplace_back(std::move(v.Value));
}
}
std::vector<BT<std::string>> cmLocalGenerator::GetIncludeDirectories(
cmGeneratorTarget const* target, std::string const& lang,
std::string const& config) const
{
return this->GetIncludeDirectoriesImplicit(target, lang, config);
}
void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
cmGeneratorTarget const* target,
const std::string& lang,
const std::string& config) const
{
this->GetIncludeDirectoriesImplicit(dirs, target, lang, config);
}
void cmLocalGenerator::GetStaticLibraryFlags(std::string& flags,
std::string const& config,
std::string const& linkLanguage,
cmGeneratorTarget* target)
{
std::vector<BT<std::string>> tmpFlags =
this->GetStaticLibraryFlags(config, linkLanguage, target);
this->AppendFlags(flags, tmpFlags);
}
std::vector<BT<std::string>> cmLocalGenerator::GetStaticLibraryFlags(
std::string const& config, std::string const& linkLanguage,
cmGeneratorTarget* target)
{
std::vector<BT<std::string>> flags;
if (linkLanguage != "Swift") {
std::string staticLibFlags;
this->AppendFlags(
staticLibFlags,
this->Makefile->GetSafeDefinition("CMAKE_STATIC_LINKER_FLAGS"));
if (!config.empty()) {
std::string name = "CMAKE_STATIC_LINKER_FLAGS_" + config;
this->AppendFlags(staticLibFlags,
this->Makefile->GetSafeDefinition(name));
}
if (!staticLibFlags.empty()) {
flags.emplace_back(std::move(staticLibFlags));
}
}
std::string staticLibFlags;
this->AppendFlags(staticLibFlags,
target->GetSafeProperty("STATIC_LIBRARY_FLAGS"));
if (!config.empty()) {
std::string name = "STATIC_LIBRARY_FLAGS_" + config;
this->AppendFlags(staticLibFlags, target->GetSafeProperty(name));
}
if (!staticLibFlags.empty()) {
flags.emplace_back(std::move(staticLibFlags));
}
std::vector<BT<std::string>> staticLibOpts =
target->GetStaticLibraryLinkOptions(config, linkLanguage);
// STATIC_LIBRARY_OPTIONS are escaped.
this->AppendCompileOptions(flags, staticLibOpts);
return flags;
}
void cmLocalGenerator::GetTargetFlags(
cmLinkLineComputer* linkLineComputer, const std::string& config,
std::string& linkLibs, std::string& flags, std::string& linkFlags,
std::string& frameworkPath, std::string& linkPath, cmGeneratorTarget* target)
{
std::vector<BT<std::string>> linkFlagsList;
std::vector<BT<std::string>> linkPathList;
std::vector<BT<std::string>> linkLibsList;
this->GetTargetFlags(linkLineComputer, config, linkLibsList, flags,
linkFlagsList, frameworkPath, linkPathList, target);
this->AppendFlags(linkFlags, linkFlagsList);
this->AppendFlags(linkPath, linkPathList);
this->AppendFlags(linkLibs, linkLibsList);
}
void cmLocalGenerator::GetTargetFlags(
cmLinkLineComputer* linkLineComputer, const std::string& config,
std::vector<BT<std::string>>& linkLibs, std::string& flags,
std::vector<BT<std::string>>& linkFlags, std::string& frameworkPath,
std::vector<BT<std::string>>& linkPath, cmGeneratorTarget* target)
{
const std::string buildType = cmSystemTools::UpperCase(config);
cmComputeLinkInformation* pcli = target->GetLinkInformation(config);
const char* libraryLinkVariable =
"CMAKE_SHARED_LINKER_FLAGS"; // default to shared library
const std::string linkLanguage =
linkLineComputer->GetLinkerLanguage(target, buildType);
switch (target->GetType()) {
case cmStateEnums::STATIC_LIBRARY:
linkFlags = this->GetStaticLibraryFlags(buildType, linkLanguage, target);
if (pcli && dynamic_cast<cmLinkLineDeviceComputer*>(linkLineComputer)) {
// Compute the required cuda device link libraries when
// resolving cuda device symbols
this->OutputLinkLibraries(pcli, linkLineComputer, linkLibs,
frameworkPath, linkPath);
}
break;
case cmStateEnums::MODULE_LIBRARY:
libraryLinkVariable = "CMAKE_MODULE_LINKER_FLAGS";
CM_FALLTHROUGH;
case cmStateEnums::SHARED_LIBRARY: {
std::string sharedLibFlags;
if (linkLanguage != "Swift") {
sharedLibFlags = cmStrCat(
this->Makefile->GetSafeDefinition(libraryLinkVariable), ' ');
if (!buildType.empty()) {
std::string build = cmStrCat(libraryLinkVariable, '_', buildType);
sharedLibFlags += this->Makefile->GetSafeDefinition(build);
sharedLibFlags += " ";
}
if (this->Makefile->IsOn("WIN32") &&
!(this->Makefile->IsOn("CYGWIN") ||
this->Makefile->IsOn("MINGW"))) {
std::vector<cmSourceFile*> sources;
target->GetSourceFiles(sources, buildType);
std::string defFlag =
this->Makefile->GetSafeDefinition("CMAKE_LINK_DEF_FILE_FLAG");
for (cmSourceFile* sf : sources) {
if (sf->GetExtension() == "def") {
sharedLibFlags += defFlag;
sharedLibFlags += this->ConvertToOutputFormat(
cmSystemTools::CollapseFullPath(sf->ResolveFullPath()), SHELL);
sharedLibFlags += " ";
}
}
}
}
const char* targetLinkFlags = target->GetProperty("LINK_FLAGS");
if (targetLinkFlags) {
sharedLibFlags += targetLinkFlags;
sharedLibFlags += " ";
}
if (!buildType.empty()) {
targetLinkFlags =
target->GetProperty(cmStrCat("LINK_FLAGS_", buildType));
if (targetLinkFlags) {
sharedLibFlags += targetLinkFlags;
sharedLibFlags += " ";
}
}
if (!sharedLibFlags.empty()) {
linkFlags.emplace_back(std::move(sharedLibFlags));
}
std::vector<BT<std::string>> linkOpts =
target->GetLinkOptions(config, linkLanguage);
// LINK_OPTIONS are escaped.
this->AppendCompileOptions(linkFlags, linkOpts);
if (pcli) {
this->OutputLinkLibraries(pcli, linkLineComputer, linkLibs,
frameworkPath, linkPath);
}
} break;
case cmStateEnums::EXECUTABLE: {
std::string exeFlags;
if (linkLanguage != "Swift") {
exeFlags = this->Makefile->GetSafeDefinition("CMAKE_EXE_LINKER_FLAGS");
exeFlags += " ";
if (!buildType.empty()) {
exeFlags += this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_EXE_LINKER_FLAGS_", buildType));
exeFlags += " ";
}
if (linkLanguage.empty()) {
cmSystemTools::Error(
"CMake can not determine linker language for target: " +
target->GetName());
return;
}
if (target->GetPropertyAsBool("WIN32_EXECUTABLE")) {
exeFlags +=
this->Makefile->GetSafeDefinition("CMAKE_CREATE_WIN32_EXE");
exeFlags += " ";
} else {
exeFlags +=
this->Makefile->GetSafeDefinition("CMAKE_CREATE_CONSOLE_EXE");
exeFlags += " ";
}
if (target->IsExecutableWithExports()) {
exeFlags += this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_EXE_EXPORTS_", linkLanguage, "_FLAG"));
exeFlags += " ";
}
}
this->AddLanguageFlagsForLinking(flags, target, linkLanguage, buildType);
if (pcli) {
this->OutputLinkLibraries(pcli, linkLineComputer, linkLibs,
frameworkPath, linkPath);
}
if (cmIsOn(this->Makefile->GetDefinition("BUILD_SHARED_LIBS"))) {
std::string sFlagVar = std::string("CMAKE_SHARED_BUILD_") +
linkLanguage + std::string("_FLAGS");
exeFlags += this->Makefile->GetSafeDefinition(sFlagVar);
exeFlags += " ";
}
std::string cmp0065Flags =
this->GetLinkLibsCMP0065(linkLanguage, *target);
if (!cmp0065Flags.empty()) {
exeFlags += cmp0065Flags;
exeFlags += " ";
}
const char* targetLinkFlags = target->GetProperty("LINK_FLAGS");
if (targetLinkFlags) {
exeFlags += targetLinkFlags;
exeFlags += " ";
}
if (!buildType.empty()) {
targetLinkFlags =
target->GetProperty(cmStrCat("LINK_FLAGS_", buildType));
if (targetLinkFlags) {
exeFlags += targetLinkFlags;
exeFlags += " ";
}
}
if (!exeFlags.empty()) {
linkFlags.emplace_back(std::move(exeFlags));
}
std::vector<BT<std::string>> linkOpts =
target->GetLinkOptions(config, linkLanguage);
// LINK_OPTIONS are escaped.
this->AppendCompileOptions(linkFlags, linkOpts);
} break;
default:
break;
}
std::string extraLinkFlags;
this->AppendPositionIndependentLinkerFlags(extraLinkFlags, target, config,
linkLanguage);
this->AppendIPOLinkerFlags(extraLinkFlags, target, config, linkLanguage);
if (!extraLinkFlags.empty()) {
linkFlags.emplace_back(std::move(extraLinkFlags));
}
}
void cmLocalGenerator::GetTargetCompileFlags(cmGeneratorTarget* target,
std::string const& config,
std::string const& lang,
std::string& flags)
{
std::vector<BT<std::string>> tmpFlags =
this->GetTargetCompileFlags(target, config, lang);
this->AppendFlags(flags, tmpFlags);
}
std::vector<BT<std::string>> cmLocalGenerator::GetTargetCompileFlags(
cmGeneratorTarget* target, std::string const& config,
std::string const& lang)
{
std::vector<BT<std::string>> flags;
std::string compileFlags;
cmMakefile* mf = this->GetMakefile();
// Add language-specific flags.
this->AddLanguageFlags(compileFlags, target, lang, config);
if (target->IsIPOEnabled(lang, config)) {
this->AppendFeatureOptions(compileFlags, lang, "IPO");
}
this->AddArchitectureFlags(compileFlags, target, lang, config);
if (lang == "Fortran") {
this->AppendFlags(compileFlags,
this->GetTargetFortranFlags(target, config));
}
this->AddCMP0018Flags(compileFlags, target, lang, config);
this->AddVisibilityPresetFlags(compileFlags, target, lang);
this->AppendFlags(compileFlags, mf->GetDefineFlags());
this->AppendFlags(compileFlags,
this->GetFrameworkFlags(lang, config, target));
if (!compileFlags.empty()) {
flags.emplace_back(std::move(compileFlags));
}
this->AddCompileOptions(flags, target, lang, config);
return flags;
}
static std::string GetFrameworkFlags(const std::string& lang,
const std::string& config,
cmGeneratorTarget* target)
{
cmLocalGenerator* lg = target->GetLocalGenerator();
cmMakefile* mf = lg->GetMakefile();
if (!mf->IsOn("APPLE")) {
return std::string();
}
std::string fwSearchFlagVar = "CMAKE_" + lang + "_FRAMEWORK_SEARCH_FLAG";
const char* fwSearchFlag = mf->GetDefinition(fwSearchFlagVar);
if (!(fwSearchFlag && *fwSearchFlag)) {
return std::string();
}
std::set<std::string> emitted;
#ifdef __APPLE__ /* don't insert this when crosscompiling e.g. to iphone */
emitted.insert("/System/Library/Frameworks");
#endif
std::vector<std::string> includes;
lg->GetIncludeDirectories(includes, target, "C", config);
// check all include directories for frameworks as this
// will already have added a -F for the framework
for (std::string const& include : includes) {
if (lg->GetGlobalGenerator()->NameResolvesToFramework(include)) {
std::string frameworkDir = cmStrCat(include, "/../");
frameworkDir = cmSystemTools::CollapseFullPath(frameworkDir);
emitted.insert(frameworkDir);
}
}
std::string flags;
if (cmComputeLinkInformation* cli = target->GetLinkInformation(config)) {
std::vector<std::string> const& frameworks = cli->GetFrameworkPaths();
for (std::string const& framework : frameworks) {
if (emitted.insert(framework).second) {
flags += fwSearchFlag;
flags +=
lg->ConvertToOutputFormat(framework, cmOutputConverter::SHELL);
flags += " ";
}
}
}
return flags;
}
std::string cmLocalGenerator::GetFrameworkFlags(std::string const& l,
std::string const& config,
cmGeneratorTarget* target)
{
return ::GetFrameworkFlags(l, config, target);
}
void cmLocalGenerator::GetTargetDefines(cmGeneratorTarget const* target,
std::string const& config,
std::string const& lang,
std::set<std::string>& defines) const
{
std::set<BT<std::string>> tmp = this->GetTargetDefines(target, config, lang);
for (BT<std::string> const& v : tmp) {
defines.emplace(v.Value);
}
}
std::set<BT<std::string>> cmLocalGenerator::GetTargetDefines(
cmGeneratorTarget const* target, std::string const& config,
std::string const& lang) const
{
std::set<BT<std::string>> defines;
// Add the export symbol definition for shared library objects.
if (const std::string* exportMacro = target->GetExportMacro()) {
this->AppendDefines(defines, *exportMacro);
}
// Add preprocessor definitions for this target and configuration.
std::vector<BT<std::string>> targetDefines =
target->GetCompileDefinitions(config, lang);
this->AppendDefines(defines, targetDefines);
return defines;
}
std::string cmLocalGenerator::GetTargetFortranFlags(
cmGeneratorTarget const* /*unused*/, std::string const& /*unused*/)
{
// Implemented by specific generators that override this.
return std::string();
}
/**
* Output the linking rules on a command line. For executables,
* targetLibrary should be a NULL pointer. For libraries, it should point
* to the name of the library. This will not link a library against itself.
*/
void cmLocalGenerator::OutputLinkLibraries(
cmComputeLinkInformation* pcli, cmLinkLineComputer* linkLineComputer,
std::string& linkLibraries, std::string& frameworkPath,
std::string& linkPath)
{
std::vector<BT<std::string>> linkLibrariesList;
std::vector<BT<std::string>> linkPathList;
this->OutputLinkLibraries(pcli, linkLineComputer, linkLibrariesList,
frameworkPath, linkPathList);
pcli->AppendValues(linkLibraries, linkLibrariesList);
pcli->AppendValues(linkPath, linkPathList);
}
void cmLocalGenerator::OutputLinkLibraries(
cmComputeLinkInformation* pcli, cmLinkLineComputer* linkLineComputer,
std::vector<BT<std::string>>& linkLibraries, std::string& frameworkPath,
std::vector<BT<std::string>>& linkPath)
{
cmComputeLinkInformation& cli = *pcli;
std::string linkLanguage = cli.GetLinkLanguage();
std::string libPathFlag;
if (const char* value = this->Makefile->GetDefinition(
"CMAKE_" + cli.GetLinkLanguage() + "_LIBRARY_PATH_FLAG")) {
libPathFlag = value;
} else {
libPathFlag =
this->Makefile->GetRequiredDefinition("CMAKE_LIBRARY_PATH_FLAG");
}
std::string libPathTerminator;
if (const char* value = this->Makefile->GetDefinition(
"CMAKE_" + cli.GetLinkLanguage() + "_LIBRARY_PATH_TERMINATOR")) {
libPathTerminator = value;
} else {
libPathTerminator =
this->Makefile->GetRequiredDefinition("CMAKE_LIBRARY_PATH_TERMINATOR");
}
// Add standard libraries for this language.
std::string stdLibString = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", cli.GetLinkLanguage(), "_STANDARD_LIBRARIES"));
// Append the framework search path flags.
std::string fwSearchFlag = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", linkLanguage, "_FRAMEWORK_SEARCH_FLAG"));
frameworkPath = linkLineComputer->ComputeFrameworkPath(cli, fwSearchFlag);
linkLineComputer->ComputeLinkPath(cli, libPathFlag, libPathTerminator,
linkPath);
linkLineComputer->ComputeLinkLibraries(cli, stdLibString, linkLibraries);
}
std::string cmLocalGenerator::GetLinkLibsCMP0065(
std::string const& linkLanguage, cmGeneratorTarget& tgt) const
{
std::string linkFlags;
// Flags to link an executable to shared libraries.
if (tgt.GetType() == cmStateEnums::EXECUTABLE &&
this->StateSnapshot.GetState()->GetGlobalPropertyAsBool(
"TARGET_SUPPORTS_SHARED_LIBS")) {
bool add_shlib_flags = false;
switch (tgt.GetPolicyStatusCMP0065()) {
case cmPolicies::WARN:
if (!tgt.GetPropertyAsBool("ENABLE_EXPORTS") &&
this->Makefile->PolicyOptionalWarningEnabled(
"CMAKE_POLICY_WARNING_CMP0065")) {
std::ostringstream w;
/* clang-format off */
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0065) << "\n"
"For compatibility with older versions of CMake, "
"additional flags may be added to export symbols on all "
"executables regardless of their ENABLE_EXPORTS property.";
/* clang-format on */
this->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
}
CM_FALLTHROUGH;
case cmPolicies::OLD:
// OLD behavior is to always add the flags, except on AIX where
// we compute symbol exports if ENABLE_EXPORTS is on.
add_shlib_flags =
!(tgt.Target->IsAIX() && tgt.GetPropertyAsBool("ENABLE_EXPORTS"));
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
this->IssueMessage(
MessageType::FATAL_ERROR,
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0065));
CM_FALLTHROUGH;
case cmPolicies::NEW:
// NEW behavior is to only add the flags if ENABLE_EXPORTS is on,
// except on AIX where we compute symbol exports.
add_shlib_flags =
!tgt.Target->IsAIX() && tgt.GetPropertyAsBool("ENABLE_EXPORTS");
break;
}
if (add_shlib_flags) {
linkFlags = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_SHARED_LIBRARY_LINK_", linkLanguage, "_FLAGS"));
}
}
return linkFlags;
}
void cmLocalGenerator::AddArchitectureFlags(std::string& flags,
cmGeneratorTarget const* target,
const std::string& lang,
const std::string& config)
{
// Only add macOS specific flags on Darwin platforms (macOS and iOS):
if (this->Makefile->IsOn("APPLE") && this->EmitUniversalBinaryFlags) {
std::vector<std::string> archs;
target->GetAppleArchs(config, archs);
const char* sysroot = this->Makefile->GetDefinition("CMAKE_OSX_SYSROOT");
if (sysroot && sysroot[0] == '/' && !sysroot[1]) {
sysroot = nullptr;
}
std::string sysrootFlagVar =
std::string("CMAKE_") + lang + "_SYSROOT_FLAG";
const char* sysrootFlag = this->Makefile->GetDefinition(sysrootFlagVar);
const char* deploymentTarget =
this->Makefile->GetDefinition("CMAKE_OSX_DEPLOYMENT_TARGET");
std::string deploymentTargetFlagVar =
std::string("CMAKE_") + lang + "_OSX_DEPLOYMENT_TARGET_FLAG";
const char* deploymentTargetFlag =
this->Makefile->GetDefinition(deploymentTargetFlagVar);
if (!archs.empty() && !lang.empty() &&
(lang[0] == 'C' || lang[0] == 'F' || lang[0] == 'O')) {
for (std::string const& arch : archs) {
flags += " -arch ";
flags += arch;
}
}
if (sysrootFlag && *sysrootFlag && sysroot && *sysroot) {
flags += " ";
flags += sysrootFlag;
flags += " ";
flags += this->ConvertToOutputFormat(sysroot, SHELL);
}
if (deploymentTargetFlag && *deploymentTargetFlag && deploymentTarget &&
*deploymentTarget) {
flags += " ";
flags += deploymentTargetFlag;
flags += deploymentTarget;
}
}
}
void cmLocalGenerator::AddLanguageFlags(std::string& flags,
cmGeneratorTarget const* target,
const std::string& lang,
const std::string& config)
{
// Add language-specific flags.
this->AddConfigVariableFlags(flags, cmStrCat("CMAKE_", lang, "_FLAGS"),
config);
if (lang == "Swift") {
if (const char* v = target->GetProperty("Swift_LANGUAGE_VERSION")) {
if (cmSystemTools::VersionCompare(
cmSystemTools::OP_GREATER_EQUAL,
this->Makefile->GetDefinition("CMAKE_Swift_COMPILER_VERSION"),
"4.2")) {
this->AppendFlags(flags, "-swift-version " + std::string(v));
}
}
}
// Add MSVC runtime library flags. This is activated by the presence
// of a default selection whether or not it is overridden by a property.
const char* msvcRuntimeLibraryDefault =
this->Makefile->GetDefinition("CMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT");
if (msvcRuntimeLibraryDefault && *msvcRuntimeLibraryDefault) {
const char* msvcRuntimeLibraryValue =
target->GetProperty("MSVC_RUNTIME_LIBRARY");
if (!msvcRuntimeLibraryValue) {
msvcRuntimeLibraryValue = msvcRuntimeLibraryDefault;
}
std::string const msvcRuntimeLibrary = cmGeneratorExpression::Evaluate(
msvcRuntimeLibraryValue, this, config, target);
if (!msvcRuntimeLibrary.empty()) {
if (const char* msvcRuntimeLibraryOptions =
this->Makefile->GetDefinition(
"CMAKE_" + lang + "_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_" +
msvcRuntimeLibrary)) {
this->AppendCompileOptions(flags, msvcRuntimeLibraryOptions);
} else if ((this->Makefile->GetSafeDefinition(
"CMAKE_" + lang + "_COMPILER_ID") == "MSVC" ||
this->Makefile->GetSafeDefinition(
"CMAKE_" + lang + "_SIMULATE_ID") == "MSVC") &&
!cmSystemTools::GetErrorOccuredFlag()) {
// The compiler uses the MSVC ABI so it needs a known runtime library.
this->IssueMessage(MessageType::FATAL_ERROR,
"MSVC_RUNTIME_LIBRARY value '" +
msvcRuntimeLibrary + "' not known for this " +
lang + " compiler.");
}
}
}
}
void cmLocalGenerator::AddLanguageFlagsForLinking(
std::string& flags, cmGeneratorTarget const* target, const std::string& lang,
const std::string& config)
{
if (this->Makefile->IsOn("CMAKE_" + lang +
"_LINK_WITH_STANDARD_COMPILE_OPTION")) {
// This toolchain requires use of the language standard flag
// when linking in order to use the matching standard library.
// FIXME: If CMake gains an abstraction for standard library
// selection, this will have to be reconciled with it.
this->AddCompilerRequirementFlag(flags, target, lang);
}
this->AddLanguageFlags(flags, target, lang, config);
if (target->IsIPOEnabled(lang, config)) {
this->AppendFeatureOptions(flags, lang, "IPO");
}
}
cmGeneratorTarget* cmLocalGenerator::FindGeneratorTargetToUse(
const std::string& name) const
{
auto imported = this->ImportedGeneratorTargets.find(name);
if (imported != this->ImportedGeneratorTargets.end()) {
return imported->second;
}
if (cmGeneratorTarget* t = this->FindLocalNonAliasGeneratorTarget(name)) {
return t;
}
return this->GetGlobalGenerator()->FindGeneratorTarget(name);
}
bool cmLocalGenerator::GetRealDependency(const std::string& inName,
const std::string& config,
std::string& dep)
{
// Older CMake code may specify the dependency using the target
// output file rather than the target name. Such code would have
// been written before there was support for target properties that
// modify the name so stripping down to just the file name should
// produce the target name in this case.
std::string name = cmSystemTools::GetFilenameName(inName);
// If the input name is the empty string, there is no real
// dependency. Short-circuit the other checks:
if (name.empty()) {
return false;
}
if (cmSystemTools::GetFilenameLastExtension(name) == ".exe") {
name = cmSystemTools::GetFilenameWithoutLastExtension(name);
}
// Look for a CMake target with the given name.
if (cmGeneratorTarget* target = this->FindGeneratorTargetToUse(name)) {
// make sure it is not just a coincidence that the target name
// found is part of the inName
if (cmSystemTools::FileIsFullPath(inName)) {
std::string tLocation;
if (target->GetType() >= cmStateEnums::EXECUTABLE &&
target->GetType() <= cmStateEnums::MODULE_LIBRARY) {
tLocation = target->GetLocation(config);
tLocation = cmSystemTools::GetFilenamePath(tLocation);
tLocation = cmSystemTools::CollapseFullPath(tLocation);
}
std::string depLocation =
cmSystemTools::GetFilenamePath(std::string(inName));
depLocation = cmSystemTools::CollapseFullPath(depLocation);
if (depLocation != tLocation) {
// it is a full path to a depend that has the same name
// as a target but is in a different location so do not use
// the target as the depend
dep = inName;
return true;
}
}
switch (target->GetType()) {
case cmStateEnums::EXECUTABLE:
case cmStateEnums::STATIC_LIBRARY:
case cmStateEnums::SHARED_LIBRARY:
case cmStateEnums::MODULE_LIBRARY:
case cmStateEnums::UNKNOWN_LIBRARY:
dep = target->GetLocation(config);
return true;
case cmStateEnums::OBJECT_LIBRARY:
// An object library has no single file on which to depend.
// This was listed to get the target-level dependency.
return false;
case cmStateEnums::INTERFACE_LIBRARY:
// An interface library has no file on which to depend.
// This was listed to get the target-level dependency.
return false;
case cmStateEnums::UTILITY:
case cmStateEnums::GLOBAL_TARGET:
// A utility target has no file on which to depend. This was listed
// only to get the target-level dependency.
return false;
}
}
// The name was not that of a CMake target. It must name a file.
if (cmSystemTools::FileIsFullPath(inName)) {
// This is a full path. Return it as given.
dep = inName;
return true;
}
// Check for a source file in this directory that matches the
// dependency.
if (cmSourceFile* sf = this->Makefile->GetSource(inName)) {
dep = sf->ResolveFullPath();
return true;
}
// Treat the name as relative to the source directory in which it
// was given.
dep = cmStrCat(this->StateSnapshot.GetDirectory().GetCurrentSource(), '/',
inName);
return true;
}
void cmLocalGenerator::AddSharedFlags(std::string& flags,
const std::string& lang, bool shared)
{
std::string flagsVar;
// Add flags for dealing with shared libraries for this language.
if (shared) {
this->AppendFlags(flags,
this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_SHARED_LIBRARY_", lang, "_FLAGS")));
}
}
void cmLocalGenerator::AddCompilerRequirementFlag(
std::string& flags, cmGeneratorTarget const* target, const std::string& lang)
{
if (lang.empty()) {
return;
}
const char* defaultStd =
this->Makefile->GetDefinition("CMAKE_" + lang + "_STANDARD_DEFAULT");
if (!defaultStd || !*defaultStd) {
// This compiler has no notion of language standard levels.
return;
}
std::string extProp = lang + "_EXTENSIONS";
bool ext = true;
if (const char* extPropValue = target->GetProperty(extProp)) {
if (cmIsOff(extPropValue)) {
ext = false;
}
}
std::string stdProp = lang + "_STANDARD";
const char* standardProp = target->GetProperty(stdProp);
if (!standardProp) {
if (ext) {
// No language standard is specified and extensions are not disabled.
// Check if this compiler needs a flag to enable extensions.
std::string const option_flag =
"CMAKE_" + lang + "_EXTENSION_COMPILE_OPTION";
if (const char* opt =
target->Target->GetMakefile()->GetDefinition(option_flag)) {
std::vector<std::string> optVec = cmExpandedList(opt);
for (std::string const& i : optVec) {
this->AppendFlagEscape(flags, i);
}
}
}
return;
}
std::string const type = ext ? "EXTENSION" : "STANDARD";
if (target->GetPropertyAsBool(lang + "_STANDARD_REQUIRED")) {
std::string option_flag =
"CMAKE_" + lang + standardProp + "_" + type + "_COMPILE_OPTION";
const char* opt =
target->Target->GetMakefile()->GetDefinition(option_flag);
if (!opt) {
std::ostringstream e;
e << "Target \"" << target->GetName()
<< "\" requires the language "
"dialect \""
<< lang << standardProp << "\" "
<< (ext ? "(with compiler extensions)" : "")
<< ", but CMake "
"does not know the compile flags to use to enable it.";
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
} else {
std::vector<std::string> optVec = cmExpandedList(opt);
for (std::string const& i : optVec) {
this->AppendFlagEscape(flags, i);
}
}
return;
}
static std::map<std::string, std::vector<std::string>> langStdMap;
if (langStdMap.empty()) {
// Maintain sorted order, most recent first.
langStdMap["CXX"].emplace_back("20");
langStdMap["CXX"].emplace_back("17");
langStdMap["CXX"].emplace_back("14");
langStdMap["CXX"].emplace_back("11");
langStdMap["CXX"].emplace_back("98");
langStdMap["OBJCXX"].emplace_back("20");
langStdMap["OBJCXX"].emplace_back("17");
langStdMap["OBJCXX"].emplace_back("14");
langStdMap["OBJCXX"].emplace_back("11");
langStdMap["OBJCXX"].emplace_back("98");
langStdMap["C"].emplace_back("11");
langStdMap["C"].emplace_back("99");
langStdMap["C"].emplace_back("90");
langStdMap["OBJC"].emplace_back("11");
langStdMap["OBJC"].emplace_back("99");
langStdMap["OBJC"].emplace_back("90");
langStdMap["CUDA"].emplace_back("14");
langStdMap["CUDA"].emplace_back("11");
langStdMap["CUDA"].emplace_back("98");
}
std::string standard(standardProp);
std::vector<std::string>& stds = langStdMap[lang];
auto stdIt = std::find(stds.begin(), stds.end(), standard);
if (stdIt == stds.end()) {
std::string e =
lang + "_STANDARD is set to invalid value '" + standard + "'";
this->GetGlobalGenerator()->GetCMakeInstance()->IssueMessage(
MessageType::FATAL_ERROR, e, target->GetBacktrace());
return;
}
auto defaultStdIt = std::find(stds.begin(), stds.end(), defaultStd);
if (defaultStdIt == stds.end()) {
std::string e = "CMAKE_" + lang +
"_STANDARD_DEFAULT is set to invalid value '" + std::string(defaultStd) +
"'";
this->IssueMessage(MessageType::INTERNAL_ERROR, e);
return;
}
// If the standard requested is older than the compiler's default
// then we need to use a flag to change it. The comparison is
// greater-or-equal because the standards are stored in backward
// chronological order.
if (stdIt >= defaultStdIt) {
std::string option_flag =
"CMAKE_" + lang + *stdIt + "_" + type + "_COMPILE_OPTION";
std::string const& opt =
target->Target->GetMakefile()->GetRequiredDefinition(option_flag);
std::vector<std::string> optVec = cmExpandedList(opt);
for (std::string const& i : optVec) {
this->AppendFlagEscape(flags, i);
}
return;
}
// The standard requested is at least as new as the compiler's default,
// and the standard request is not required. Decay to the newest standard
// for which a flag is defined.
for (; stdIt < defaultStdIt; ++stdIt) {
std::string option_flag =
cmStrCat("CMAKE_", lang, *stdIt, "_", type, "_COMPILE_OPTION");
if (const char* opt =
target->Target->GetMakefile()->GetDefinition(option_flag)) {
std::vector<std::string> optVec = cmExpandedList(opt);
for (std::string const& i : optVec) {
this->AppendFlagEscape(flags, i);
}
return;
}
}
}
static void AddVisibilityCompileOption(std::string& flags,
cmGeneratorTarget const* target,
cmLocalGenerator* lg,
const std::string& lang,
std::string* warnCMP0063)
{
std::string compileOption = "CMAKE_" + lang + "_COMPILE_OPTIONS_VISIBILITY";
const char* opt = lg->GetMakefile()->GetDefinition(compileOption);
if (!opt) {
return;
}
std::string flagDefine = lang + "_VISIBILITY_PRESET";
const char* prop = target->GetProperty(flagDefine);
if (!prop) {
return;
}
if (warnCMP0063) {
*warnCMP0063 += " " + flagDefine + "\n";
return;
}
if (strcmp(prop, "hidden") != 0 && strcmp(prop, "default") != 0 &&
strcmp(prop, "protected") != 0 && strcmp(prop, "internal") != 0) {
std::ostringstream e;
e << "Target " << target->GetName() << " uses unsupported value \"" << prop
<< "\" for " << flagDefine << "."
<< " The supported values are: default, hidden, protected, and "
"internal.";
cmSystemTools::Error(e.str());
return;
}
std::string option = std::string(opt) + prop;
lg->AppendFlags(flags, option);
}
static void AddInlineVisibilityCompileOption(std::string& flags,
cmGeneratorTarget const* target,
cmLocalGenerator* lg,
std::string* warnCMP0063)
{
std::string compileOption =
"CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN";
const char* opt = lg->GetMakefile()->GetDefinition(compileOption);
if (!opt) {
return;
}
bool prop = target->GetPropertyAsBool("VISIBILITY_INLINES_HIDDEN");
if (!prop) {
return;
}
if (warnCMP0063) {
*warnCMP0063 += " VISIBILITY_INLINES_HIDDEN\n";
return;
}
lg->AppendFlags(flags, opt);
}
void cmLocalGenerator::AddVisibilityPresetFlags(
std::string& flags, cmGeneratorTarget const* target, const std::string& lang)
{
if (lang.empty()) {
return;
}
std::string warnCMP0063;
std::string* pWarnCMP0063 = nullptr;
if (target->GetType() != cmStateEnums::SHARED_LIBRARY &&
target->GetType() != cmStateEnums::MODULE_LIBRARY &&
!target->IsExecutableWithExports()) {
switch (target->GetPolicyStatusCMP0063()) {
case cmPolicies::OLD:
return;
case cmPolicies::WARN:
pWarnCMP0063 = &warnCMP0063;
break;
default:
break;
}
}
AddVisibilityCompileOption(flags, target, this, lang, pWarnCMP0063);
if (lang == "CXX") {
AddInlineVisibilityCompileOption(flags, target, this, pWarnCMP0063);
}
if (!warnCMP0063.empty() && this->WarnCMP0063.insert(target).second) {
std::ostringstream w;
/* clang-format off */
w <<
cmPolicies::GetPolicyWarning(cmPolicies::CMP0063) << "\n"
"Target \"" << target->GetName() << "\" of "
"type \"" << cmState::GetTargetTypeName(target->GetType()) << "\" "
"has the following visibility properties set for " << lang << ":\n" <<
warnCMP0063 <<
"For compatibility CMake is not honoring them for this target.";
/* clang-format on */
target->GetLocalGenerator()->GetCMakeInstance()->IssueMessage(
MessageType::AUTHOR_WARNING, w.str(), target->GetBacktrace());
}
}
void cmLocalGenerator::AddCMP0018Flags(std::string& flags,
cmGeneratorTarget const* target,
std::string const& lang,
const std::string& config)
{
int targetType = target->GetType();
bool shared = ((targetType == cmStateEnums::SHARED_LIBRARY) ||
(targetType == cmStateEnums::MODULE_LIBRARY));
if (this->GetShouldUseOldFlags(shared, lang)) {
this->AddSharedFlags(flags, lang, shared);
} else {
if (target->GetType() == cmStateEnums::OBJECT_LIBRARY) {
if (target->GetPropertyAsBool("POSITION_INDEPENDENT_CODE")) {
this->AddPositionIndependentFlags(flags, lang, targetType);
}
return;
}
if (target->GetLinkInterfaceDependentBoolProperty(
"POSITION_INDEPENDENT_CODE", config)) {
this->AddPositionIndependentFlags(flags, lang, targetType);
}
if (shared) {
this->AppendFeatureOptions(flags, lang, "DLL");
}
}
}
bool cmLocalGenerator::GetShouldUseOldFlags(bool shared,
const std::string& lang) const
{
std::string originalFlags =
this->GlobalGenerator->GetSharedLibFlagsForLanguage(lang);
if (shared) {
std::string flagsVar = cmStrCat("CMAKE_SHARED_LIBRARY_", lang, "_FLAGS");
std::string const& flags = this->Makefile->GetSafeDefinition(flagsVar);
if (flags != originalFlags) {
switch (this->GetPolicyStatus(cmPolicies::CMP0018)) {
case cmPolicies::WARN: {
std::ostringstream e;
e << "Variable " << flagsVar
<< " has been modified. CMake "
"will ignore the POSITION_INDEPENDENT_CODE target property for "
"shared libraries and will use the "
<< flagsVar
<< " variable "
"instead. This may cause errors if the original content of "
<< flagsVar << " was removed.\n"
<< cmPolicies::GetPolicyWarning(cmPolicies::CMP0018);
this->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
CM_FALLTHROUGH;
}
case cmPolicies::OLD:
return true;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
return false;
}
}
}
return false;
}
void cmLocalGenerator::AddPositionIndependentFlags(std::string& flags,
std::string const& lang,
int targetType)
{
std::string picFlags;
if (targetType == cmStateEnums::EXECUTABLE) {
picFlags = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", lang, "_COMPILE_OPTIONS_PIE"));
}
if (picFlags.empty()) {
picFlags = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", lang, "_COMPILE_OPTIONS_PIC"));
}
if (!picFlags.empty()) {
std::vector<std::string> options = cmExpandedList(picFlags);
for (std::string const& o : options) {
this->AppendFlagEscape(flags, o);
}
}
}
void cmLocalGenerator::AddConfigVariableFlags(std::string& flags,
const std::string& var,
const std::string& config)
{
// Add the flags from the variable itself.
this->AppendFlags(flags, this->Makefile->GetSafeDefinition(var));
// Add the flags from the build-type specific variable.
if (!config.empty()) {
const std::string flagsVar =
cmStrCat(var, '_', cmSystemTools::UpperCase(config));
this->AppendFlags(flags, this->Makefile->GetSafeDefinition(flagsVar));
}
}
void cmLocalGenerator::AppendFlags(std::string& flags,
const std::string& newFlags) const
{
if (!newFlags.empty()) {
if (!flags.empty()) {
flags += " ";
}
flags += newFlags;
}
}
void cmLocalGenerator::AppendFlags(
std::string& flags, const std::vector<BT<std::string>>& newFlags) const
{
for (BT<std::string> const& flag : newFlags) {
this->AppendFlags(flags, flag.Value);
}
}
void cmLocalGenerator::AppendFlagEscape(std::string& flags,
const std::string& rawFlag) const
{
this->AppendFlags(flags, this->EscapeForShell(rawFlag));
}
void cmLocalGenerator::AddPchDependencies(cmGeneratorTarget* target)
{
// FIXME: Handle all configurations in multi-config generators.
std::string config;
if (!this->GetGlobalGenerator()->IsMultiConfig()) {
config = this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE");
}
const std::string buildType = cmSystemTools::UpperCase(config);
// FIXME: Refactor collection of sources to not evaluate object libraries.
std::vector<cmSourceFile*> sources;
target->GetSourceFiles(sources, buildType);
for (const std::string& lang : { "C", "CXX", "OBJC", "OBJCXX" }) {
auto langSources =
std::count_if(sources.begin(), sources.end(), [lang](cmSourceFile* sf) {
return lang == sf->GetLanguage() &&
!sf->GetProperty("SKIP_PRECOMPILE_HEADERS");
});
if (langSources == 0) {
continue;
}
const std::string pchSource = target->GetPchSource(config, lang);
const std::string pchHeader = target->GetPchHeader(config, lang);
if (pchSource.empty() || pchHeader.empty()) {
continue;
}
const std::string pchExtension =
this->Makefile->GetSafeDefinition("CMAKE_PCH_EXTENSION");
if (pchExtension.empty()) {
continue;
}
const char* pchReuseFrom =
target->GetProperty("PRECOMPILE_HEADERS_REUSE_FROM");
auto pch_sf = this->Makefile->GetOrCreateSource(
pchSource, false, cmSourceFileLocationKind::Known);
if (!this->GetGlobalGenerator()->IsXcode()) {
if (!pchReuseFrom) {
target->AddSource(pchSource, true);
}
const std::string pchFile = target->GetPchFile(config, lang);
// Exclude the pch files from linking
if (this->Makefile->IsOn("CMAKE_LINK_PCH")) {
if (!pchReuseFrom) {
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}");
const std::string to_file =
cmStrCat(to_dir, pchReuseFrom, extension);
std::string dest_file = to_file;
const std::string prefix = target->GetSafeProperty("PREFIX");
if (!prefix.empty()) {
dest_file = cmStrCat(to_dir, prefix, pchReuseFrom, extension);
}
file << "if (EXISTS \"" << from_file << "\" AND \"" << from_file
<< "\" IS_NEWER_THAN \"" << dest_file << "\")\n";
file << " file(COPY \"" << from_file << "\""
<< " DESTINATION \"" << to_dir << "\")\n";
if (!prefix.empty()) {
file << " file(REMOVE \"" << dest_file << "\")\n";
file << " file(RENAME \"" << to_file << "\" \"" << dest_file
<< "\")\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,
cmCustomCommandType::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->AppendProperty(
"LINK_FLAGS",
cmStrCat(" ", this->ConvertToOutputFormat(pchSourceObj, SHELL))
.c_str(),
true);
}
} else {
pch_sf->SetProperty("PCH_EXTENSION", pchExtension.c_str());
}
// Add pchHeader to source files, which will
// be grouped as "Precompile Header File"
auto pchHeader_sf = this->Makefile->GetOrCreateSource(
pchHeader, false, cmSourceFileLocationKind::Known);
std::string err;
pchHeader_sf->ResolveFullPath(&err);
target->AddSource(pchHeader);
}
}
}
void cmLocalGenerator::AddUnityBuild(cmGeneratorTarget* target)
{
if (!target->GetPropertyAsBool("UNITY_BUILD")) {
return;
}
// FIXME: Handle all configurations in multi-config generators.
std::string config;
if (!this->GetGlobalGenerator()->IsMultiConfig()) {
config = this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE");
}
const std::string buildType = cmSystemTools::UpperCase(config);
std::string filename_base =
cmStrCat(this->GetCurrentBinaryDirectory(), "/CMakeFiles/",
target->GetName(), ".dir/Unity/");
// FIXME: Refactor collection of sources to not evaluate object libraries.
std::vector<cmSourceFile*> sources;
target->GetSourceFiles(sources, buildType);
auto batchSizeString = target->GetProperty("UNITY_BUILD_BATCH_SIZE");
const size_t unityBatchSize =
static_cast<size_t>(std::atoi(batchSizeString));
auto beforeInclude = target->GetProperty("UNITY_BUILD_CODE_BEFORE_INCLUDE");
auto afterInclude = target->GetProperty("UNITY_BUILD_CODE_AFTER_INCLUDE");
for (std::string lang : { "C", "CXX" }) {
std::vector<cmSourceFile*> filtered_sources;
std::copy_if(sources.begin(), sources.end(),
std::back_inserter(filtered_sources), [&](cmSourceFile* sf) {
return sf->GetLanguage() == lang &&
!sf->GetPropertyAsBool("SKIP_UNITY_BUILD_INCLUSION") &&
!sf->GetPropertyAsBool("HEADER_FILE_ONLY") &&
!sf->GetProperty("COMPILE_OPTIONS") &&
!sf->GetProperty("COMPILE_DEFINITIONS") &&
!sf->GetProperty("COMPILE_FLAGS") &&
!sf->GetProperty("INCLUDE_DIRECTORIES");
});
size_t batchSize = unityBatchSize;
if (unityBatchSize == 0) {
batchSize = filtered_sources.size();
}
for (size_t itemsLeft = filtered_sources.size(), chunk = batchSize,
batch = 0;
itemsLeft > 0; itemsLeft -= chunk, ++batch) {
chunk = std::min(itemsLeft, batchSize);
std::string filename = cmStrCat(filename_base, "unity_", batch,
(lang == "C") ? ".c" : ".cxx");
const std::string filename_tmp = cmStrCat(filename, ".tmp");
{
size_t begin = batch * batchSize;
size_t end = begin + chunk;
cmGeneratedFileStream file(
filename_tmp, false,
this->GetGlobalGenerator()->GetMakefileEncoding());
file << "/* generated by CMake */\n\n";
for (; begin != end; ++begin) {
cmSourceFile* sf = filtered_sources[begin];
target->AddSourceFileToUnityBatch(sf->ResolveFullPath());
sf->SetProperty("UNITY_SOURCE_FILE", filename.c_str());
if (beforeInclude) {
file << beforeInclude << "\n";
}
file << "#include \"" << sf->ResolveFullPath() << "\"\n";
if (afterInclude) {
file << afterInclude << "\n";
}
}
}
cmSystemTools::MoveFileIfDifferent(filename_tmp, filename);
target->AddSource(filename, true);
auto unity = this->Makefile->GetOrCreateSource(filename);
unity->SetProperty("SKIP_UNITY_BUILD_INCLUSION", "ON");
unity->SetProperty("UNITY_SOURCE_FILE", filename.c_str());
}
}
}
void cmLocalGenerator::AppendIPOLinkerFlags(std::string& flags,
cmGeneratorTarget* target,
const std::string& config,
const std::string& lang)
{
if (!target->IsIPOEnabled(lang, config)) {
return;
}
switch (target->GetType()) {
case cmStateEnums::EXECUTABLE:
case cmStateEnums::SHARED_LIBRARY:
case cmStateEnums::MODULE_LIBRARY:
break;
default:
return;
}
const std::string name = "CMAKE_" + lang + "_LINK_OPTIONS_IPO";
const char* rawFlagsList = this->Makefile->GetDefinition(name);
if (rawFlagsList == nullptr) {
return;
}
std::vector<std::string> flagsList = cmExpandedList(rawFlagsList);
for (std::string const& o : flagsList) {
this->AppendFlagEscape(flags, o);
}
}
void cmLocalGenerator::AppendPositionIndependentLinkerFlags(
std::string& flags, cmGeneratorTarget* target, const std::string& config,
const std::string& lang)
{
// For now, only EXECUTABLE is concerned
if (target->GetType() != cmStateEnums::EXECUTABLE) {
return;
}
const char* PICValue = target->GetLinkPIEProperty(config);
if (PICValue == nullptr) {
// POSITION_INDEPENDENT_CODE is not set
return;
}
const std::string mode = cmIsOn(PICValue) ? "PIE" : "NO_PIE";
std::string supported = "CMAKE_" + lang + "_LINK_" + mode + "_SUPPORTED";
if (cmIsOff(this->Makefile->GetDefinition(supported))) {
return;
}
std::string name = "CMAKE_" + lang + "_LINK_OPTIONS_" + mode;
auto pieFlags = this->Makefile->GetSafeDefinition(name);
if (pieFlags.empty()) {
return;
}
std::vector<std::string> flagsList = cmExpandedList(pieFlags);
for (const auto& flag : flagsList) {
this->AppendFlagEscape(flags, flag);
}
}
void cmLocalGenerator::AppendCompileOptions(std::string& options,
const char* options_list,
const char* regex) const
{
// Short-circuit if there are no options.
if (!options_list) {
return;
}
// Expand the list of options.
std::vector<std::string> options_vec = cmExpandedList(options_list);
this->AppendCompileOptions(options, options_vec, regex);
}
void cmLocalGenerator::AppendCompileOptions(
std::string& options, const std::vector<std::string>& options_vec,
const char* regex) const
{
if (regex != nullptr) {
// Filter flags upon specified reges.
cmsys::RegularExpression r(regex);
for (std::string const& opt : options_vec) {
if (r.find(opt)) {
this->AppendFlagEscape(options, opt);
}
}
} else {
for (std::string const& opt : options_vec) {
this->AppendFlagEscape(options, opt);
}
}
}
void cmLocalGenerator::AppendCompileOptions(
std::vector<BT<std::string>>& options,
const std::vector<BT<std::string>>& options_vec, const char* regex) const
{
if (regex != nullptr) {
// Filter flags upon specified regular expressions.
cmsys::RegularExpression r(regex);
for (BT<std::string> const& opt : options_vec) {
if (r.find(opt.Value)) {
std::string flag;
this->AppendFlagEscape(flag, opt.Value);
options.emplace_back(std::move(flag), opt.Backtrace);
}
}
} else {
for (BT<std::string> const& opt : options_vec) {
std::string flag;
this->AppendFlagEscape(flag, opt.Value);
options.emplace_back(std::move(flag), opt.Backtrace);
}
}
}
void cmLocalGenerator::AppendIncludeDirectories(
std::vector<std::string>& includes, const char* includes_list,
const cmSourceFile& sourceFile) const
{
// Short-circuit if there are no includes.
if (!includes_list) {
return;
}
// Expand the list of includes.
std::vector<std::string> includes_vec = cmExpandedList(includes_list);
this->AppendIncludeDirectories(includes, includes_vec, sourceFile);
}
void cmLocalGenerator::AppendIncludeDirectories(
std::vector<std::string>& includes,
const std::vector<std::string>& includes_vec,
const cmSourceFile& sourceFile) const
{
std::unordered_set<std::string> uniqueIncludes;
for (const std::string& include : includes_vec) {
if (!cmSystemTools::FileIsFullPath(include)) {
std::ostringstream e;
e << "Found relative path while evaluating include directories of "
"\""
<< sourceFile.GetLocation().GetName() << "\":\n \"" << include
<< "\"\n";
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
return;
}
std::string inc = include;
if (!cmIsOff(inc)) {
cmSystemTools::ConvertToUnixSlashes(inc);
}
if (uniqueIncludes.insert(inc).second) {
includes.push_back(std::move(inc));
}
}
}
void cmLocalGenerator::AppendDefines(std::set<std::string>& defines,
std::string const& defines_list) const
{
std::set<BT<std::string>> tmp;
this->AppendDefines(tmp, ExpandListWithBacktrace(defines_list));
for (BT<std::string> const& i : tmp) {
defines.emplace(i.Value);
}
}
void cmLocalGenerator::AppendDefines(std::set<BT<std::string>>& defines,
std::string const& defines_list) const
{
// Short-circuit if there are no definitions.
if (defines_list.empty()) {
return;
}
// Expand the list of definitions.
this->AppendDefines(defines, ExpandListWithBacktrace(defines_list));
}
void cmLocalGenerator::AppendDefines(
std::set<BT<std::string>>& defines,
const std::vector<BT<std::string>>& defines_vec) const
{
for (BT<std::string> const& d : defines_vec) {
// Skip unsupported definitions.
if (!this->CheckDefinition(d.Value)) {
continue;
}
defines.insert(d);
}
}
void cmLocalGenerator::JoinDefines(const std::set<std::string>& defines,
std::string& definesString,
const std::string& lang)
{
// Lookup the define flag for the current language.
std::string dflag = "-D";
if (!lang.empty()) {
const char* df =
this->Makefile->GetDefinition(cmStrCat("CMAKE_", lang, "_DEFINE_FLAG"));
if (df && *df) {
dflag = df;
}
}
const char* itemSeparator = definesString.empty() ? "" : " ";
for (std::string const& define : defines) {
// Append the definition with proper escaping.
std::string def = dflag;
if (this->GetState()->UseWatcomWMake()) {
// The Watcom compiler does its own command line parsing instead
// of using the windows shell rules. Definitions are one of
// -DNAME
// -DNAME=<cpp-token>
// -DNAME="c-string with spaces and other characters(?@#$)"
//
// Watcom will properly parse each of these cases from the
// command line without any escapes. However we still have to
// get the '$' and '#' characters through WMake as '$$' and
// '$#'.
for (const char* c = define.c_str(); *c; ++c) {
if (*c == '$' || *c == '#') {
def += '$';
}
def += *c;
}
} else {
// Make the definition appear properly on the command line. Use
// -DNAME="value" instead of -D"NAME=value" for historical reasons.
std::string::size_type eq = define.find('=');
def += define.substr(0, eq);
if (eq != std::string::npos) {
def += "=";
def += this->EscapeForShell(define.substr(eq + 1), true);
}
}
definesString += itemSeparator;
itemSeparator = " ";
definesString += def;
}
}
void cmLocalGenerator::AppendFeatureOptions(std::string& flags,
const std::string& lang,
const char* feature)
{
const char* optionList = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", lang, "_COMPILE_OPTIONS_", feature));
if (optionList != nullptr) {
std::vector<std::string> options = cmExpandedList(optionList);
for (std::string const& o : options) {
this->AppendFlagEscape(flags, o);
}
}
}
const char* cmLocalGenerator::GetFeature(const std::string& feature,
const std::string& config)
{
std::string featureName = feature;
// TODO: Define accumulation policy for features (prepend, append, replace).
// Currently we always replace.
if (!config.empty()) {
featureName += "_";
featureName += cmSystemTools::UpperCase(config);
}
cmStateSnapshot snp = this->StateSnapshot;
while (snp.IsValid()) {
if (const char* value = snp.GetDirectory().GetProperty(featureName)) {
return value;
}
snp = snp.GetBuildsystemDirectoryParent();
}
return nullptr;
}
std::string cmLocalGenerator::GetProjectName() const
{
return this->StateSnapshot.GetProjectName();
}
std::string cmLocalGenerator::ConstructComment(
cmCustomCommandGenerator const& ccg, const char* default_comment)
{
// Check for a comment provided with the command.
if (ccg.GetComment()) {
return ccg.GetComment();
}
// Construct a reasonable default comment if possible.
if (!ccg.GetOutputs().empty()) {
std::string comment;
comment = "Generating ";
const char* sep = "";
std::string currentBinaryDir = this->GetCurrentBinaryDirectory();
for (std::string const& o : ccg.GetOutputs()) {
comment += sep;
comment += this->MaybeConvertToRelativePath(currentBinaryDir, o);
sep = ", ";
}
return comment;
}
// Otherwise use the provided default.
return default_comment;
}
class cmInstallTargetGeneratorLocal : public cmInstallTargetGenerator
{
public:
cmInstallTargetGeneratorLocal(cmLocalGenerator* lg, std::string const& t,
const char* dest, bool implib)
: cmInstallTargetGenerator(
t, dest, implib, "", std::vector<std::string>(), "Unspecified",
cmInstallGenerator::SelectMessageLevel(lg->GetMakefile()), false,
false)
{
this->Compute(lg);
}
};
void cmLocalGenerator::GenerateTargetInstallRules(
std::ostream& os, const std::string& config,
std::vector<std::string> const& configurationTypes)
{
// Convert the old-style install specification from each target to
// an install generator and run it.
const std::vector<cmGeneratorTarget*>& tgts = this->GetGeneratorTargets();
for (cmGeneratorTarget* l : tgts) {
if (l->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
continue;
}
// Include the user-specified pre-install script for this target.
if (const char* preinstall = l->GetProperty("PRE_INSTALL_SCRIPT")) {
cmInstallScriptGenerator g(preinstall, false, nullptr, false);
g.Generate(os, config, configurationTypes);
}
// Install this target if a destination is given.
if (!l->Target->GetInstallPath().empty()) {
// Compute the full install destination. Note that converting
// to unix slashes also removes any trailing slash.
// We also skip over the leading slash given by the user.
std::string destination = l->Target->GetInstallPath().substr(1);
cmSystemTools::ConvertToUnixSlashes(destination);
if (destination.empty()) {
destination = ".";
}
// Generate the proper install generator for this target type.
switch (l->GetType()) {
case cmStateEnums::EXECUTABLE:
case cmStateEnums::STATIC_LIBRARY:
case cmStateEnums::MODULE_LIBRARY: {
// Use a target install generator.
cmInstallTargetGeneratorLocal g(this, l->GetName(),
destination.c_str(), false);
g.Generate(os, config, configurationTypes);
} break;
case cmStateEnums::SHARED_LIBRARY: {
#if defined(_WIN32) || defined(__CYGWIN__)
// Special code to handle DLL. Install the import library
// to the normal destination and the DLL to the runtime
// destination.
cmInstallTargetGeneratorLocal g1(this, l->GetName(),
destination.c_str(), true);
g1.Generate(os, config, configurationTypes);
// We also skip over the leading slash given by the user.
destination = l->Target->GetRuntimeInstallPath().substr(1);
cmSystemTools::ConvertToUnixSlashes(destination);
cmInstallTargetGeneratorLocal g2(this, l->GetName(),
destination.c_str(), false);
g2.Generate(os, config, configurationTypes);
#else
// Use a target install generator.
cmInstallTargetGeneratorLocal g(this, l->GetName(),
destination.c_str(), false);
g.Generate(os, config, configurationTypes);
#endif
} break;
default:
break;
}
}
// Include the user-specified post-install script for this target.
if (const char* postinstall = l->GetProperty("POST_INSTALL_SCRIPT")) {
cmInstallScriptGenerator g(postinstall, false, nullptr, false);
g.Generate(os, config, configurationTypes);
}
}
}
#if defined(CM_LG_ENCODE_OBJECT_NAMES)
static bool cmLocalGeneratorShortenObjectName(std::string& objName,
std::string::size_type max_len)
{
// Replace the beginning of the path portion of the object name with
// its own md5 sum.
std::string::size_type pos =
objName.find('/', objName.size() - max_len + 32);
if (pos != std::string::npos) {
cmCryptoHash md5(cmCryptoHash::AlgoMD5);
std::string md5name = cmStrCat(md5.HashString(objName.substr(0, pos)),
cm::string_view(objName).substr(pos));
objName = md5name;
// The object name is now short enough.
return true;
}
// The object name could not be shortened enough.
return false;
}
bool cmLocalGeneratorCheckObjectName(std::string& objName,
std::string::size_type dir_len,
std::string::size_type max_total_len)
{
// Enforce the maximum file name length if possible.
std::string::size_type max_obj_len = max_total_len;
if (dir_len < max_total_len) {
max_obj_len = max_total_len - dir_len;
if (objName.size() > max_obj_len) {
// The current object file name is too long. Try to shorten it.
return cmLocalGeneratorShortenObjectName(objName, max_obj_len);
}
// The object file name is short enough.
return true;
}
// The build directory in which the object will be stored is
// already too deep.
return false;
}
#endif
std::string& cmLocalGenerator::CreateSafeUniqueObjectFileName(
const std::string& sin, std::string const& dir_max)
{
// Look for an existing mapped name for this object file.
auto it = this->UniqueObjectNamesMap.find(sin);
// If no entry exists create one.
if (it == this->UniqueObjectNamesMap.end()) {
// Start with the original name.
std::string ssin = sin;
// Avoid full paths by removing leading slashes.
ssin.erase(0, ssin.find_first_not_of('/'));
// Avoid full paths by removing colons.
std::replace(ssin.begin(), ssin.end(), ':', '_');
// Avoid relative paths that go up the tree.
cmSystemTools::ReplaceString(ssin, "../", "__/");
// Avoid spaces.
std::replace(ssin.begin(), ssin.end(), ' ', '_');
// Mangle the name if necessary.
if (this->Makefile->IsOn("CMAKE_MANGLE_OBJECT_FILE_NAMES")) {
bool done;
int cc = 0;
char rpstr[100];
sprintf(rpstr, "_p_");
cmSystemTools::ReplaceString(ssin, "+", rpstr);
std::string sssin = sin;
do {
done = true;
for (it = this->UniqueObjectNamesMap.begin();
it != this->UniqueObjectNamesMap.end(); ++it) {
if (it->second == ssin) {
done = false;
}
}
if (done) {
break;
}
sssin = ssin;
cmSystemTools::ReplaceString(ssin, "_p_", rpstr);
sprintf(rpstr, "_p%d_", cc++);
} while (!done);
}
#if defined(CM_LG_ENCODE_OBJECT_NAMES)
if (!cmLocalGeneratorCheckObjectName(ssin, dir_max.size(),
this->ObjectPathMax)) {
// Warn if this is the first time the path has been seen.
if (this->ObjectMaxPathViolations.insert(dir_max).second) {
std::ostringstream m;
/* clang-format off */
m << "The object file directory\n"
<< " " << dir_max << "\n"
<< "has " << dir_max.size() << " characters. "
<< "The maximum full path to an object file is "
<< this->ObjectPathMax << " characters "
<< "(see CMAKE_OBJECT_PATH_MAX). "
<< "Object file\n"
<< " " << ssin << "\n"
<< "cannot be safely placed under this directory. "
<< "The build may not work correctly.";
/* clang-format on */
this->IssueMessage(MessageType::WARNING, m.str());
}
}
#else
(void)dir_max;
#endif
// Insert the newly mapped object file name.
std::map<std::string, std::string>::value_type e(sin, ssin);
it = this->UniqueObjectNamesMap.insert(e).first;
}
// Return the map entry.
return it->second;
}
void cmLocalGenerator::ComputeObjectFilenames(
std::map<cmSourceFile const*, std::string>& /*unused*/,
cmGeneratorTarget const* /*unused*/)
{
}
bool cmLocalGenerator::IsWindowsShell() const
{
return this->GetState()->UseWindowsShell();
}
bool cmLocalGenerator::IsWatcomWMake() const
{
return this->GetState()->UseWatcomWMake();
}
bool cmLocalGenerator::IsMinGWMake() const
{
return this->GetState()->UseMinGWMake();
}
bool cmLocalGenerator::IsNMake() const
{
return this->GetState()->UseNMake();
}
std::string cmLocalGenerator::GetObjectFileNameWithoutTarget(
const cmSourceFile& source, std::string const& dir_max,
bool* hasSourceExtension, char const* customOutputExtension)
{
// Construct the object file name using the full path to the source
// file which is its only unique identification.
std::string const& fullPath = source.GetFullPath();
// Try referencing the source relative to the source tree.
std::string relFromSource = this->MaybeConvertToRelativePath(
this->GetCurrentSourceDirectory(), fullPath);
assert(!relFromSource.empty());
bool relSource = !cmSystemTools::FileIsFullPath(relFromSource);
bool subSource = relSource && relFromSource[0] != '.';
// Try referencing the source relative to the binary tree.
std::string relFromBinary = this->MaybeConvertToRelativePath(
this->GetCurrentBinaryDirectory(), fullPath);
assert(!relFromBinary.empty());
bool relBinary = !cmSystemTools::FileIsFullPath(relFromBinary);
bool subBinary = relBinary && relFromBinary[0] != '.';
// Select a nice-looking reference to the source file to construct
// the object file name.
std::string objectName;
if ((relSource && !relBinary) || (subSource && !subBinary)) {
objectName = relFromSource;
} else if ((relBinary && !relSource) || (subBinary && !subSource)) {
objectName = relFromBinary;
} else if (relFromBinary.length() < relFromSource.length()) {
objectName = relFromBinary;
} else {
objectName = relFromSource;
}
// if it is still a full path check for the try compile case
// try compile never have in source sources, and should not
// have conflicting source file names in the same target
if (cmSystemTools::FileIsFullPath(objectName)) {
if (this->GetGlobalGenerator()->GetCMakeInstance()->GetIsInTryCompile()) {
objectName = cmSystemTools::GetFilenameName(source.GetFullPath());
}
}
// Ensure that for the CMakeFiles/<target>.dir/generated_source_file
// we don't end up having:
// CMakeFiles/<target>.dir/CMakeFiles/<target>.dir/generated_source_file.obj
const char* unitySourceFile = source.GetProperty("UNITY_SOURCE_FILE");
const char* pchExtension = source.GetProperty("PCH_EXTENSION");
if (unitySourceFile || pchExtension) {
if (pchExtension) {
customOutputExtension = pchExtension;
}
cmsys::RegularExpression var("(CMakeFiles/[^/]+.dir/)");
if (var.find(objectName)) {
objectName.erase(var.start(), var.end() - var.start());
}
}
// Replace the original source file extension with the object file
// extension.
bool keptSourceExtension = true;
if (!source.GetPropertyAsBool("KEEP_EXTENSION")) {
// Decide whether this language wants to replace the source
// extension with the object extension. For CMake 2.4
// compatibility do this by default.
bool replaceExt = this->NeedBackwardsCompatibility_2_4();
if (!replaceExt) {
std::string lang = source.GetLanguage();
if (!lang.empty()) {
replaceExt = this->Makefile->IsOn(
cmStrCat("CMAKE_", lang, "_OUTPUT_EXTENSION_REPLACE"));
}
}
// Remove the source extension if it is to be replaced.
if (replaceExt || customOutputExtension) {
keptSourceExtension = false;
std::string::size_type dot_pos = objectName.rfind('.');
if (dot_pos != std::string::npos) {
objectName = objectName.substr(0, dot_pos);
}
}
// Store the new extension.
if (customOutputExtension) {
objectName += customOutputExtension;
} else {
objectName += this->GlobalGenerator->GetLanguageOutputExtension(source);
}
}
if (hasSourceExtension) {
*hasSourceExtension = keptSourceExtension;
}
// Convert to a safe name.
return this->CreateSafeUniqueObjectFileName(objectName, dir_max);
}
std::string cmLocalGenerator::GetSourceFileLanguage(const cmSourceFile& source)
{
return source.GetLanguage();
}
cmake* cmLocalGenerator::GetCMakeInstance() const
{
return this->GlobalGenerator->GetCMakeInstance();
}
std::string const& cmLocalGenerator::GetSourceDirectory() const
{
return this->GetCMakeInstance()->GetHomeDirectory();
}
std::string const& cmLocalGenerator::GetBinaryDirectory() const
{
return this->GetCMakeInstance()->GetHomeOutputDirectory();
}
std::string const& cmLocalGenerator::GetCurrentBinaryDirectory() const
{
return this->StateSnapshot.GetDirectory().GetCurrentBinary();
}
std::string const& cmLocalGenerator::GetCurrentSourceDirectory() const
{
return this->StateSnapshot.GetDirectory().GetCurrentSource();
}
std::string cmLocalGenerator::MaybeConvertToRelativePath(
std::string const& local_path, std::string const& remote_path) const
{
return this->StateSnapshot.GetDirectory().ConvertToRelPathIfNotContained(
local_path, remote_path);
}
std::string cmLocalGenerator::GetTargetDirectory(
const cmGeneratorTarget* /*unused*/) const
{
cmSystemTools::Error("GetTargetDirectory"
" called on cmLocalGenerator");
return "";
}
KWIML_INT_uint64_t cmLocalGenerator::GetBackwardsCompatibility()
{
// The computed version may change until the project is fully
// configured.
if (!this->BackwardsCompatibilityFinal) {
unsigned int major = 0;
unsigned int minor = 0;
unsigned int patch = 0;
if (const char* value =
this->Makefile->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY")) {
switch (sscanf(value, "%u.%u.%u", &major, &minor, &patch)) {
case 2:
patch = 0;
break;
case 1:
minor = 0;
patch = 0;
break;
default:
break;
}
}
this->BackwardsCompatibility = CMake_VERSION_ENCODE(major, minor, patch);
this->BackwardsCompatibilityFinal = true;
}
return this->BackwardsCompatibility;
}
bool cmLocalGenerator::NeedBackwardsCompatibility_2_4()
{
// Check the policy to decide whether to pay attention to this
// variable.
switch (this->GetPolicyStatus(cmPolicies::CMP0001)) {
case cmPolicies::WARN:
// WARN is just OLD without warning because user code does not
// always affect whether this check is done.
case cmPolicies::OLD:
// Old behavior is to check the variable.
break;
case cmPolicies::NEW:
// New behavior is to ignore the variable.
return false;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
// This will never be the case because the only way to require
// the setting is to require the user to specify version policy
// 2.6 or higher. Once we add that requirement then this whole
// method can be removed anyway.
return false;
}
// Compatibility is needed if CMAKE_BACKWARDS_COMPATIBILITY is set
// equal to or lower than the given version.
KWIML_INT_uint64_t actual_compat = this->GetBackwardsCompatibility();
return (actual_compat && actual_compat <= CMake_VERSION_ENCODE(2, 4, 255));
}
cmPolicies::PolicyStatus cmLocalGenerator::GetPolicyStatus(
cmPolicies::PolicyID id) const
{
return this->Makefile->GetPolicyStatus(id);
}
bool cmLocalGenerator::CheckDefinition(std::string const& define) const
{
// Many compilers do not support -DNAME(arg)=sdf so we disable it.
std::string::size_type pos = define.find_first_of("(=");
if (pos != std::string::npos) {
if (define[pos] == '(') {
std::ostringstream e;
/* clang-format off */
e << "WARNING: Function-style preprocessor definitions may not be "
<< "passed on the compiler command line because many compilers "
<< "do not support it.\n"
<< "CMake is dropping a preprocessor definition: " << define << "\n"
<< "Consider defining the macro in a (configured) header file.\n";
/* clang-format on */
cmSystemTools::Message(e.str());
return false;
}
}
// Many compilers do not support # in the value so we disable it.
if (define.find_first_of('#') != std::string::npos) {
std::ostringstream e;
/* clang-format off */
e << "WARNING: Preprocessor definitions containing '#' may not be "
<< "passed on the compiler command line because many compilers "
<< "do not support it.\n"
<< "CMake is dropping a preprocessor definition: " << define << "\n"
<< "Consider defining the macro in a (configured) header file.\n";
/* clang-format on */
cmSystemTools::Message(e.str());
return false;
}
// Assume it is supported.
return true;
}
static void cmLGInfoProp(cmMakefile* mf, cmGeneratorTarget* target,
const std::string& prop)
{
if (const char* val = target->GetProperty(prop)) {
mf->AddDefinition(prop, val);
}
}
void cmLocalGenerator::GenerateAppleInfoPList(cmGeneratorTarget* target,
const std::string& targetName,
const std::string& fname)
{
// Find the Info.plist template.
const char* in = target->GetProperty("MACOSX_BUNDLE_INFO_PLIST");
std::string inFile = (in && *in) ? in : "MacOSXBundleInfo.plist.in";
if (!cmSystemTools::FileIsFullPath(inFile)) {
std::string inMod = this->Makefile->GetModulesFile(inFile);
if (!inMod.empty()) {
inFile = inMod;
}
}
if (!cmSystemTools::FileExists(inFile, true)) {
std::ostringstream e;
e << "Target " << target->GetName() << " Info.plist template \"" << inFile
<< "\" could not be found.";
cmSystemTools::Error(e.str());
return;
}
// Convert target properties to variables in an isolated makefile
// scope to configure the file. If properties are set they will
// override user make variables. If not the configuration will fall
// back to the directory-level values set by the user.
cmMakefile* mf = this->Makefile;
cmMakefile::ScopePushPop varScope(mf);
mf->AddDefinition("MACOSX_BUNDLE_EXECUTABLE_NAME", targetName);
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_INFO_STRING");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_ICON_FILE");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_GUI_IDENTIFIER");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_LONG_VERSION_STRING");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_BUNDLE_NAME");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_SHORT_VERSION_STRING");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_BUNDLE_VERSION");
cmLGInfoProp(mf, target, "MACOSX_BUNDLE_COPYRIGHT");
mf->ConfigureFile(inFile, fname, false, false, false);
}
void cmLocalGenerator::GenerateFrameworkInfoPList(
cmGeneratorTarget* target, const std::string& targetName,
const std::string& fname)
{
// Find the Info.plist template.
const char* in = target->GetProperty("MACOSX_FRAMEWORK_INFO_PLIST");
std::string inFile = (in && *in) ? in : "MacOSXFrameworkInfo.plist.in";
if (!cmSystemTools::FileIsFullPath(inFile)) {
std::string inMod = this->Makefile->GetModulesFile(inFile);
if (!inMod.empty()) {
inFile = inMod;
}
}
if (!cmSystemTools::FileExists(inFile, true)) {
std::ostringstream e;
e << "Target " << target->GetName() << " Info.plist template \"" << inFile
<< "\" could not be found.";
cmSystemTools::Error(e.str());
return;
}
// Convert target properties to variables in an isolated makefile
// scope to configure the file. If properties are set they will
// override user make variables. If not the configuration will fall
// back to the directory-level values set by the user.
cmMakefile* mf = this->Makefile;
cmMakefile::ScopePushPop varScope(mf);
mf->AddDefinition("MACOSX_FRAMEWORK_NAME", targetName);
cmLGInfoProp(mf, target, "MACOSX_FRAMEWORK_ICON_FILE");
cmLGInfoProp(mf, target, "MACOSX_FRAMEWORK_IDENTIFIER");
cmLGInfoProp(mf, target, "MACOSX_FRAMEWORK_SHORT_VERSION_STRING");
cmLGInfoProp(mf, target, "MACOSX_FRAMEWORK_BUNDLE_VERSION");
mf->ConfigureFile(inFile, fname, false, false, false);
}
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