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CMake/Source/cmMakefile.cxx
Brad King 816bbf227f Merge topic 'trace_json_timestamp' 
c829f0cfca trace: Add time and stack level to JSON output format

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Volo Zyko <volo.zyko@gmail.com>
Merge-request: !4242
2020-01-24 09:19:55 -05:00

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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmConfigure.h" // IWYU pragma: keep
#include "cmMakefile.h"
#include <algorithm>
#include <cassert>
#include <cctype>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <sstream>
#include <utility>
#include <cm/iterator>
#include <cm/memory>
#include <cm/optional>
#include <cm/vector>
#include <cmext/algorithm>
#include "cmsys/FStream.hxx"
#include "cmsys/RegularExpression.hxx"
#include "cm_jsoncpp_value.h"
#include "cm_jsoncpp_writer.h"
#include "cm_sys_stat.h"
#include "cmAlgorithms.h"
#include "cmCommandArgumentParserHelper.h"
#include "cmCustomCommand.h"
#include "cmCustomCommandLines.h"
#include "cmExecutionStatus.h"
#include "cmExpandedCommandArgument.h" // IWYU pragma: keep
#include "cmFileLockPool.h"
#include "cmFunctionBlocker.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorExpressionEvaluationFile.h"
#include "cmGlobalGenerator.h"
#include "cmInstallGenerator.h" // IWYU pragma: keep
#include "cmInstallSubdirectoryGenerator.h"
#include "cmListFileCache.h"
#include "cmLocalGenerator.h"
#include "cmMessageType.h"
#include "cmRange.h"
#include "cmSourceFile.h"
#include "cmSourceFileLocation.h"
#include "cmState.h"
#include "cmStateDirectory.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTarget.h"
#include "cmTargetLinkLibraryType.h"
#include "cmTest.h"
#include "cmTestGenerator.h" // IWYU pragma: keep
#include "cmVersion.h"
#include "cmWorkingDirectory.h"
#include "cmake.h"
#ifndef CMAKE_BOOTSTRAP
# include "cmVariableWatch.h"
#endif
class cmMessenger;
cmDirectoryId::cmDirectoryId(std::string s)
: String(std::move(s))
{
}
// default is not to be building executables
cmMakefile::cmMakefile(cmGlobalGenerator* globalGenerator,
cmStateSnapshot const& snapshot)
: GlobalGenerator(globalGenerator)
, StateSnapshot(snapshot)
, Backtrace(snapshot)
{
this->IsSourceFileTryCompile = false;
this->WarnUnused = this->GetCMakeInstance()->GetWarnUnused();
this->CheckSystemVars = this->GetCMakeInstance()->GetCheckSystemVars();
this->SuppressSideEffects = false;
// Setup the default include complaint regular expression (match nothing).
this->ComplainFileRegularExpression = "^$";
this->DefineFlags = " ";
this->cmDefineRegex.compile("#([ \t]*)cmakedefine[ \t]+([A-Za-z_0-9]*)");
this->cmDefine01Regex.compile("#([ \t]*)cmakedefine01[ \t]+([A-Za-z_0-9]*)");
this->cmAtVarRegex.compile("(@[A-Za-z_0-9/.+-]+@)");
this->cmNamedCurly.compile("^[A-Za-z0-9/_.+-]+{");
this->StateSnapshot =
this->StateSnapshot.GetState()->CreatePolicyScopeSnapshot(
this->StateSnapshot);
this->RecursionDepth = 0;
// Enter a policy level for this directory.
this->PushPolicy();
// push empty loop block
this->PushLoopBlockBarrier();
// By default the check is not done. It is enabled by
// cmListFileCache in the top level if necessary.
this->CheckCMP0000 = false;
#if !defined(CMAKE_BOOTSTRAP)
this->AddSourceGroup("", "^.*$");
this->AddSourceGroup("Source Files", CM_SOURCE_REGEX);
this->AddSourceGroup("Header Files", CM_HEADER_REGEX);
this->AddSourceGroup("Precompile Header File", CM_PCH_REGEX);
this->AddSourceGroup("CMake Rules", "\\.rule$");
this->AddSourceGroup("Resources", CM_RESOURCE_REGEX);
this->AddSourceGroup("Object Files", "\\.(lo|o|obj)$");
this->ObjectLibrariesSourceGroupIndex = this->SourceGroups.size();
this->SourceGroups.emplace_back("Object Libraries", "^MATCH_NO_SOURCES$");
#endif
}
cmMakefile::~cmMakefile() = default;
cmDirectoryId cmMakefile::GetDirectoryId() const
{
// Use the instance pointer value to uniquely identify this directory.
// If we ever need to expose this to CMake language code we should
// add a read-only property in cmMakefile::GetProperty.
char buf[32];
sprintf(buf, "(%p)",
static_cast<void const*>(this)); // cast avoids format warning
return std::string(buf);
}
void cmMakefile::IssueMessage(MessageType t, std::string const& text) const
{
if (!this->ExecutionStatusStack.empty()) {
if ((t == MessageType::FATAL_ERROR) ||
(t == MessageType::INTERNAL_ERROR)) {
this->ExecutionStatusStack.back()->SetNestedError();
}
}
this->GetCMakeInstance()->IssueMessage(t, text, this->Backtrace);
}
bool cmMakefile::CheckCMP0037(std::string const& targetName,
cmStateEnums::TargetType targetType) const
{
MessageType messageType = MessageType::AUTHOR_WARNING;
std::ostringstream e;
bool issueMessage = false;
switch (this->GetPolicyStatus(cmPolicies::CMP0037)) {
case cmPolicies::WARN:
if (targetType != cmStateEnums::INTERFACE_LIBRARY) {
e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0037) << "\n";
issueMessage = true;
}
CM_FALLTHROUGH;
case cmPolicies::OLD:
break;
case cmPolicies::NEW:
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
issueMessage = true;
messageType = MessageType::FATAL_ERROR;
break;
}
if (issueMessage) {
e << "The target name \"" << targetName
<< "\" is reserved or not valid for certain "
"CMake features, such as generator expressions, and may result "
"in undefined behavior.";
this->IssueMessage(messageType, e.str());
if (messageType == MessageType::FATAL_ERROR) {
return false;
}
}
return true;
}
void cmMakefile::MaybeWarnCMP0074(std::string const& pkg)
{
// Warn if a <pkg>_ROOT variable we may use is set.
std::string const varName = pkg + "_ROOT";
const char* var = this->GetDefinition(varName);
std::string env;
cmSystemTools::GetEnv(varName, env);
bool const haveVar = var && *var;
bool const haveEnv = !env.empty();
if ((haveVar || haveEnv) && this->WarnedCMP0074.insert(varName).second) {
std::ostringstream w;
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0074) << "\n";
if (haveVar) {
w << "CMake variable " << varName << " is set to:\n"
<< " " << var << "\n";
}
if (haveEnv) {
w << "Environment variable " << varName << " is set to:\n"
<< " " << env << "\n";
}
w << "For compatibility, CMake is ignoring the variable.";
this->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
}
}
cmStringRange cmMakefile::GetIncludeDirectoriesEntries() const
{
return this->StateSnapshot.GetDirectory().GetIncludeDirectoriesEntries();
}
cmBacktraceRange cmMakefile::GetIncludeDirectoriesBacktraces() const
{
return this->StateSnapshot.GetDirectory()
.GetIncludeDirectoriesEntryBacktraces();
}
cmStringRange cmMakefile::GetCompileOptionsEntries() const
{
return this->StateSnapshot.GetDirectory().GetCompileOptionsEntries();
}
cmBacktraceRange cmMakefile::GetCompileOptionsBacktraces() const
{
return this->StateSnapshot.GetDirectory().GetCompileOptionsEntryBacktraces();
}
cmStringRange cmMakefile::GetCompileDefinitionsEntries() const
{
return this->StateSnapshot.GetDirectory().GetCompileDefinitionsEntries();
}
cmBacktraceRange cmMakefile::GetCompileDefinitionsBacktraces() const
{
return this->StateSnapshot.GetDirectory()
.GetCompileDefinitionsEntryBacktraces();
}
cmStringRange cmMakefile::GetLinkOptionsEntries() const
{
return this->StateSnapshot.GetDirectory().GetLinkOptionsEntries();
}
cmBacktraceRange cmMakefile::GetLinkOptionsBacktraces() const
{
return this->StateSnapshot.GetDirectory().GetLinkOptionsEntryBacktraces();
}
cmStringRange cmMakefile::GetLinkDirectoriesEntries() const
{
return this->StateSnapshot.GetDirectory().GetLinkDirectoriesEntries();
}
cmBacktraceRange cmMakefile::GetLinkDirectoriesBacktraces() const
{
return this->StateSnapshot.GetDirectory()
.GetLinkDirectoriesEntryBacktraces();
}
cmListFileBacktrace cmMakefile::GetBacktrace() const
{
return this->Backtrace;
}
cmListFileBacktrace cmMakefile::GetBacktrace(cmCommandContext const& cc) const
{
cmListFileContext lfc;
lfc.Name = cc.Name.Original;
lfc.Line = cc.Line;
lfc.FilePath = this->StateSnapshot.GetExecutionListFile();
return this->Backtrace.Push(lfc);
}
cmListFileContext cmMakefile::GetExecutionContext() const
{
cmListFileContext const& cur = this->Backtrace.Top();
cmListFileContext lfc;
lfc.Name = cur.Name;
lfc.Line = cur.Line;
lfc.FilePath = this->StateSnapshot.GetExecutionListFile();
return lfc;
}
void cmMakefile::PrintCommandTrace(const cmListFileFunction& lff) const
{
// Check if current file in the list of requested to trace...
std::vector<std::string> const& trace_only_this_files =
this->GetCMakeInstance()->GetTraceSources();
std::string const& full_path = this->GetExecutionFilePath();
std::string const& only_filename = cmSystemTools::GetFilenameName(full_path);
bool trace = trace_only_this_files.empty();
if (!trace) {
for (std::string const& file : trace_only_this_files) {
std::string::size_type const pos = full_path.rfind(file);
trace = (pos != std::string::npos) &&
((pos + file.size()) == full_path.size()) &&
(only_filename == cmSystemTools::GetFilenameName(file));
if (trace) {
break;
}
}
// Do nothing if current file wasn't requested for trace...
if (!trace) {
return;
}
}
std::ostringstream msg;
std::vector<std::string> args;
std::string temp;
bool expand = this->GetCMakeInstance()->GetTraceExpand();
args.reserve(lff.Arguments.size());
for (cmListFileArgument const& arg : lff.Arguments) {
if (expand) {
temp = arg.Value;
this->ExpandVariablesInString(temp);
args.push_back(temp);
} else {
args.push_back(arg.Value);
}
}
switch (this->GetCMakeInstance()->GetTraceFormat()) {
case cmake::TraceFormat::TRACE_JSON_V1: {
#ifndef CMAKE_BOOTSTRAP
Json::Value val;
Json::StreamWriterBuilder builder;
builder["indentation"] = "";
val["file"] = full_path;
val["line"] = static_cast<std::int64_t>(lff.Line);
val["cmd"] = lff.Name.Original;
val["args"] = Json::Value(Json::arrayValue);
for (std::string const& arg : args) {
val["args"].append(arg);
}
val["time"] = cmSystemTools::GetTime();
val["frame"] =
static_cast<std::uint64_t>(this->ExecutionStatusStack.size());
msg << Json::writeString(builder, val);
#endif
break;
}
case cmake::TraceFormat::TRACE_HUMAN:
msg << full_path << "(" << lff.Line << "): ";
msg << lff.Name.Original << "(";
for (std::string const& arg : args) {
msg << arg << " ";
}
msg << ")";
break;
case cmake::TraceFormat::TRACE_UNDEFINED:
msg << "INTERNAL ERROR: Trace format is TRACE_UNDEFINED";
break;
}
auto& f = this->GetCMakeInstance()->GetTraceFile();
if (f) {
f << msg.str() << '\n';
} else {
cmSystemTools::Message(msg.str());
}
}
// Helper class to make sure the call stack is valid.
class cmMakefileCall
{
public:
cmMakefileCall(cmMakefile* mf, cmCommandContext const& cc,
cmExecutionStatus& status)
: Makefile(mf)
{
cmListFileContext const& lfc = cmListFileContext::FromCommandContext(
cc, this->Makefile->StateSnapshot.GetExecutionListFile());
this->Makefile->Backtrace = this->Makefile->Backtrace.Push(lfc);
++this->Makefile->RecursionDepth;
this->Makefile->ExecutionStatusStack.push_back(&status);
}
~cmMakefileCall()
{
this->Makefile->ExecutionStatusStack.pop_back();
--this->Makefile->RecursionDepth;
this->Makefile->Backtrace = this->Makefile->Backtrace.Pop();
}
cmMakefileCall(const cmMakefileCall&) = delete;
cmMakefileCall& operator=(const cmMakefileCall&) = delete;
private:
cmMakefile* Makefile;
};
void cmMakefile::OnExecuteCommand(std::function<void()> callback)
{
this->ExecuteCommandCallback = std::move(callback);
}
bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff,
cmExecutionStatus& status)
{
bool result = true;
// quick return if blocked
if (this->IsFunctionBlocked(lff, status)) {
// No error.
return result;
}
if (this->ExecuteCommandCallback) {
this->ExecuteCommandCallback();
}
// Place this call on the call stack.
cmMakefileCall stack_manager(this, lff, status);
static_cast<void>(stack_manager);
// Check for maximum recursion depth.
int depth = CMake_DEFAULT_RECURSION_LIMIT;
const char* depthStr = this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH");
if (depthStr) {
std::istringstream s(depthStr);
int d;
if (s >> d) {
depth = d;
}
}
if (this->RecursionDepth > depth) {
std::ostringstream e;
e << "Maximum recursion depth of " << depth << " exceeded";
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
cmSystemTools::SetFatalErrorOccured();
return false;
}
// Lookup the command prototype.
if (cmState::Command command =
this->GetState()->GetCommandByExactName(lff.Name.Lower)) {
// Decide whether to invoke the command.
if (!cmSystemTools::GetFatalErrorOccured()) {
// if trace is enabled, print out invoke information
if (this->GetCMakeInstance()->GetTrace()) {
this->PrintCommandTrace(lff);
}
// Try invoking the command.
bool invokeSucceeded = command(lff.Arguments, status);
bool hadNestedError = status.GetNestedError();
if (!invokeSucceeded || hadNestedError) {
if (!hadNestedError) {
// The command invocation requested that we report an error.
std::string const error =
std::string(lff.Name.Original) + " " + status.GetError();
this->IssueMessage(MessageType::FATAL_ERROR, error);
}
result = false;
if (this->GetCMakeInstance()->GetWorkingMode() != cmake::NORMAL_MODE) {
cmSystemTools::SetFatalErrorOccured();
}
}
}
} else {
if (!cmSystemTools::GetFatalErrorOccured()) {
std::string error =
cmStrCat("Unknown CMake command \"", lff.Name.Original, "\".");
this->IssueMessage(MessageType::FATAL_ERROR, error);
result = false;
cmSystemTools::SetFatalErrorOccured();
}
}
return result;
}
class cmMakefile::IncludeScope
{
public:
IncludeScope(cmMakefile* mf, std::string const& filenametoread,
bool noPolicyScope);
~IncludeScope();
void Quiet() { this->ReportError = false; }
IncludeScope(const IncludeScope&) = delete;
IncludeScope& operator=(const IncludeScope&) = delete;
private:
cmMakefile* Makefile;
bool NoPolicyScope;
bool CheckCMP0011;
bool ReportError;
void EnforceCMP0011();
};
cmMakefile::IncludeScope::IncludeScope(cmMakefile* mf,
std::string const& filenametoread,
bool noPolicyScope)
: Makefile(mf)
, NoPolicyScope(noPolicyScope)
, CheckCMP0011(false)
, ReportError(true)
{
this->Makefile->Backtrace = this->Makefile->Backtrace.Push(filenametoread);
this->Makefile->PushFunctionBlockerBarrier();
this->Makefile->StateSnapshot =
this->Makefile->GetState()->CreateIncludeFileSnapshot(
this->Makefile->StateSnapshot, filenametoread);
if (!this->NoPolicyScope) {
// Check CMP0011 to determine the policy scope type.
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0011)) {
case cmPolicies::WARN:
// We need to push a scope to detect whether the script sets
// any policies that would affect the includer and therefore
// requires a warning. We use a weak scope to simulate OLD
// behavior by allowing policy changes to affect the includer.
this->Makefile->PushPolicy(true);
this->CheckCMP0011 = true;
break;
case cmPolicies::OLD:
// OLD behavior is to not push a scope at all.
this->NoPolicyScope = true;
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
// We should never make this policy required, but we handle it
// here just in case.
this->CheckCMP0011 = true;
CM_FALLTHROUGH;
case cmPolicies::NEW:
// NEW behavior is to push a (strong) scope.
this->Makefile->PushPolicy();
break;
}
}
}
cmMakefile::IncludeScope::~IncludeScope()
{
if (!this->NoPolicyScope) {
// If we need to enforce policy CMP0011 then the top entry is the
// one we pushed above. If the entry is empty, then the included
// script did not set any policies that might affect the includer so
// we do not need to enforce the policy.
if (this->CheckCMP0011 &&
!this->Makefile->StateSnapshot.HasDefinedPolicyCMP0011()) {
this->CheckCMP0011 = false;
}
// Pop the scope we pushed for the script.
this->Makefile->PopPolicy();
// We enforce the policy after the script's policy stack entry has
// been removed.
if (this->CheckCMP0011) {
this->EnforceCMP0011();
}
}
this->Makefile->PopSnapshot(this->ReportError);
this->Makefile->PopFunctionBlockerBarrier(this->ReportError);
this->Makefile->Backtrace = this->Makefile->Backtrace.Pop();
}
void cmMakefile::IncludeScope::EnforceCMP0011()
{
// We check the setting of this policy again because the included
// script might actually set this policy for its includer.
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0011)) {
case cmPolicies::WARN:
// Warn because the user did not set this policy.
{
std::ostringstream w;
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0011) << "\n"
<< "The included script\n "
<< this->Makefile->GetExecutionFilePath() << "\n"
<< "affects policy settings. "
<< "CMake is implying the NO_POLICY_SCOPE option for compatibility, "
<< "so the effects are applied to the including context.";
this->Makefile->IssueMessage(MessageType::AUTHOR_WARNING, w.str());
}
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS: {
std::ostringstream e;
/* clang-format off */
e << cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0011) << "\n"
<< "The included script\n "
<< this->Makefile->GetExecutionFilePath() << "\n"
<< "affects policy settings, so it requires this policy to be set.";
/* clang-format on */
this->Makefile->IssueMessage(MessageType::FATAL_ERROR, e.str());
} break;
case cmPolicies::OLD:
case cmPolicies::NEW:
// The script set this policy. We assume the purpose of the
// script is to initialize policies for its includer, and since
// the policy is now set for later scripts, we do not warn.
break;
}
}
bool cmMakefile::ReadDependentFile(const std::string& filename,
bool noPolicyScope)
{
if (const char* def = this->GetDefinition("CMAKE_CURRENT_LIST_FILE")) {
this->AddDefinition("CMAKE_PARENT_LIST_FILE", def);
}
std::string filenametoread = cmSystemTools::CollapseFullPath(
filename, this->GetCurrentSourceDirectory());
IncludeScope incScope(this, filenametoread, noPolicyScope);
cmListFile listFile;
if (!listFile.ParseFile(filenametoread.c_str(), this->GetMessenger(),
this->Backtrace)) {
return false;
}
this->ReadListFile(listFile, filenametoread);
if (cmSystemTools::GetFatalErrorOccured()) {
incScope.Quiet();
}
return true;
}
class cmMakefile::ListFileScope
{
public:
ListFileScope(cmMakefile* mf, std::string const& filenametoread)
: Makefile(mf)
, ReportError(true)
{
this->Makefile->Backtrace = this->Makefile->Backtrace.Push(filenametoread);
this->Makefile->StateSnapshot =
this->Makefile->GetState()->CreateInlineListFileSnapshot(
this->Makefile->StateSnapshot, filenametoread);
assert(this->Makefile->StateSnapshot.IsValid());
this->Makefile->PushFunctionBlockerBarrier();
}
~ListFileScope()
{
this->Makefile->PopSnapshot(this->ReportError);
this->Makefile->PopFunctionBlockerBarrier(this->ReportError);
this->Makefile->Backtrace = this->Makefile->Backtrace.Pop();
}
void Quiet() { this->ReportError = false; }
ListFileScope(const ListFileScope&) = delete;
ListFileScope& operator=(const ListFileScope&) = delete;
private:
cmMakefile* Makefile;
bool ReportError;
};
bool cmMakefile::ReadListFile(const std::string& filename)
{
std::string filenametoread = cmSystemTools::CollapseFullPath(
filename, this->GetCurrentSourceDirectory());
ListFileScope scope(this, filenametoread);
cmListFile listFile;
if (!listFile.ParseFile(filenametoread.c_str(), this->GetMessenger(),
this->Backtrace)) {
return false;
}
this->ReadListFile(listFile, filenametoread);
if (cmSystemTools::GetFatalErrorOccured()) {
scope.Quiet();
}
return true;
}
void cmMakefile::ReadListFile(cmListFile const& listFile,
std::string const& filenametoread)
{
// add this list file to the list of dependencies
this->ListFiles.push_back(filenametoread);
std::string currentParentFile =
this->GetSafeDefinition("CMAKE_PARENT_LIST_FILE");
std::string currentFile = this->GetSafeDefinition("CMAKE_CURRENT_LIST_FILE");
this->AddDefinition("CMAKE_CURRENT_LIST_FILE", filenametoread);
this->AddDefinition("CMAKE_CURRENT_LIST_DIR",
cmSystemTools::GetFilenamePath(filenametoread));
this->MarkVariableAsUsed("CMAKE_PARENT_LIST_FILE");
this->MarkVariableAsUsed("CMAKE_CURRENT_LIST_FILE");
this->MarkVariableAsUsed("CMAKE_CURRENT_LIST_DIR");
// Run the parsed commands.
const size_t numberFunctions = listFile.Functions.size();
for (size_t i = 0; i < numberFunctions; ++i) {
cmExecutionStatus status(*this);
this->ExecuteCommand(listFile.Functions[i], status);
if (cmSystemTools::GetFatalErrorOccured()) {
break;
}
if (status.GetReturnInvoked()) {
// Exit early due to return command.
break;
}
}
this->CheckForUnusedVariables();
this->AddDefinition("CMAKE_PARENT_LIST_FILE", currentParentFile);
this->AddDefinition("CMAKE_CURRENT_LIST_FILE", currentFile);
this->AddDefinition("CMAKE_CURRENT_LIST_DIR",
cmSystemTools::GetFilenamePath(currentFile));
this->MarkVariableAsUsed("CMAKE_PARENT_LIST_FILE");
this->MarkVariableAsUsed("CMAKE_CURRENT_LIST_FILE");
this->MarkVariableAsUsed("CMAKE_CURRENT_LIST_DIR");
}
void cmMakefile::EnforceDirectoryLevelRules() const
{
// Diagnose a violation of CMP0000 if necessary.
if (this->CheckCMP0000) {
std::ostringstream msg;
msg << "No cmake_minimum_required command is present. "
<< "A line of code such as\n"
<< " cmake_minimum_required(VERSION " << cmVersion::GetMajorVersion()
<< "." << cmVersion::GetMinorVersion() << ")\n"
<< "should be added at the top of the file. "
<< "The version specified may be lower if you wish to "
<< "support older CMake versions for this project. "
<< "For more information run "
<< "\"cmake --help-policy CMP0000\".";
switch (this->GetPolicyStatus(cmPolicies::CMP0000)) {
case cmPolicies::WARN:
// Warn because the user did not provide a minimum required
// version.
this->GetCMakeInstance()->IssueMessage(MessageType::AUTHOR_WARNING,
msg.str(), this->Backtrace);
case cmPolicies::OLD:
// OLD behavior is to use policy version 2.4 set in
// cmListFileCache.
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
// NEW behavior is to issue an error.
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR,
msg.str(), this->Backtrace);
cmSystemTools::SetFatalErrorOccured();
return;
}
}
}
void cmMakefile::AddEvaluationFile(
const std::string& inputFile,
std::unique_ptr<cmCompiledGeneratorExpression> outputName,
std::unique_ptr<cmCompiledGeneratorExpression> condition,
bool inputIsContent)
{
this->EvaluationFiles.push_back(
cm::make_unique<cmGeneratorExpressionEvaluationFile>(
inputFile, std::move(outputName), std::move(condition), inputIsContent,
this->GetPolicyStatus(cmPolicies::CMP0070)));
}
const std::vector<std::unique_ptr<cmGeneratorExpressionEvaluationFile>>&
cmMakefile::GetEvaluationFiles() const
{
return this->EvaluationFiles;
}
std::vector<cmExportBuildFileGenerator*>
cmMakefile::GetExportBuildFileGenerators() const
{
return this->ExportBuildFileGenerators;
}
void cmMakefile::RemoveExportBuildFileGeneratorCMP0024(
cmExportBuildFileGenerator* gen)
{
auto it = std::find(this->ExportBuildFileGenerators.begin(),
this->ExportBuildFileGenerators.end(), gen);
if (it != this->ExportBuildFileGenerators.end()) {
this->ExportBuildFileGenerators.erase(it);
}
}
void cmMakefile::AddExportBuildFileGenerator(cmExportBuildFileGenerator* gen)
{
this->ExportBuildFileGenerators.push_back(gen);
}
namespace {
struct file_not_persistent
{
bool operator()(const std::string& path) const
{
return !(path.find("CMakeTmp") == std::string::npos &&
cmSystemTools::FileExists(path));
}
};
}
void cmMakefile::AddGeneratorAction(GeneratorAction action)
{
assert(!this->GeneratorActionsInvoked);
this->GeneratorActions.emplace_back(std::move(action), this->Backtrace);
}
void cmMakefile::DoGenerate(cmLocalGenerator& lg)
{
// do all the variable expansions here
this->ExpandVariablesCMP0019();
// give all the commands a chance to do something
// after the file has been parsed before generation
for (const BT<GeneratorAction>& action : this->GeneratorActions) {
action.Value(lg, action.Backtrace);
}
this->GeneratorActionsInvoked = true;
this->DelayedOutputFiles.clear();
this->DelayedOutputFilesHaveGenex = false;
// go through all configured files and see which ones still exist.
// we don't want cmake to re-run if a configured file is created and deleted
// during processing as that would make it a transient file that can't
// influence the build process
cm::erase_if(this->OutputFiles, file_not_persistent());
// if a configured file is used as input for another configured file,
// and then deleted it will show up in the input list files so we
// need to scan those too
cm::erase_if(this->ListFiles, file_not_persistent());
}
// Generate the output file
void cmMakefile::Generate(cmLocalGenerator& lg)
{
this->DoGenerate(lg);
const char* oldValue = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
if (oldValue &&
cmSystemTools::VersionCompare(cmSystemTools::OP_LESS, oldValue, "2.4")) {
this->GetCMakeInstance()->IssueMessage(
MessageType::FATAL_ERROR,
"You have set CMAKE_BACKWARDS_COMPATIBILITY to a CMake version less "
"than 2.4. This version of CMake only supports backwards compatibility "
"with CMake 2.4 or later. For compatibility with older versions please "
"use any CMake 2.8.x release or lower.",
this->Backtrace);
}
}
namespace {
// There are still too many implicit backtraces through cmMakefile. As a
// workaround we reset the backtrace temporarily.
struct BacktraceGuard
{
BacktraceGuard(cmListFileBacktrace& lfbt, cmListFileBacktrace current)
: Backtrace(lfbt)
, Previous(lfbt)
{
this->Backtrace = std::move(current);
}
~BacktraceGuard() { this->Backtrace = std::move(Previous); }
private:
cmListFileBacktrace& Backtrace;
cmListFileBacktrace Previous;
};
cm::optional<std::string> MakeOptionalString(const char* str)
{
if (str) {
return str;
}
return cm::nullopt;
}
const char* GetCStrOrNull(const cm::optional<std::string>& str)
{
return str ? str->c_str() : nullptr;
}
}
bool cmMakefile::ValidateCustomCommand(
const cmCustomCommandLines& commandLines) const
{
// TODO: More strict?
for (cmCustomCommandLine const& cl : commandLines) {
if (!cl.empty() && !cl[0].empty() && cl[0][0] == '"') {
std::ostringstream e;
e << "COMMAND may not contain literal quotes:\n " << cl[0] << "\n";
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
return false;
}
}
return true;
}
cmTarget* cmMakefile::GetCustomCommandTarget(
const std::string& target, cmObjectLibraryCommands objLibCommands,
const cmListFileBacktrace& lfbt) const
{
// Find the target to which to add the custom command.
auto ti = this->Targets.find(target);
if (ti == this->Targets.end()) {
MessageType messageType = MessageType::AUTHOR_WARNING;
bool issueMessage = false;
std::ostringstream e;
switch (this->GetPolicyStatus(cmPolicies::CMP0040)) {
case cmPolicies::WARN:
e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0040) << "\n";
issueMessage = true;
case cmPolicies::OLD:
break;
case cmPolicies::NEW:
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
issueMessage = true;
messageType = MessageType::FATAL_ERROR;
}
if (issueMessage) {
if (cmTarget const* t = this->FindTargetToUse(target)) {
if (t->IsImported()) {
e << "TARGET '" << target
<< "' is IMPORTED and does not build here.";
} else {
e << "TARGET '" << target << "' was not created in this directory.";
}
} else {
e << "No TARGET '" << target
<< "' has been created in this directory.";
}
this->GetCMakeInstance()->IssueMessage(messageType, e.str(), lfbt);
}
return nullptr;
}
cmTarget* t = &ti->second;
if (objLibCommands == cmObjectLibraryCommands::Reject &&
t->GetType() == cmStateEnums::OBJECT_LIBRARY) {
std::ostringstream e;
e << "Target \"" << target
<< "\" is an OBJECT library "
"that may not have PRE_BUILD, PRE_LINK, or POST_BUILD commands.";
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
lfbt);
return nullptr;
}
if (t->GetType() == cmStateEnums::INTERFACE_LIBRARY) {
std::ostringstream e;
e << "Target \"" << target
<< "\" is an INTERFACE library "
"that may not have PRE_BUILD, PRE_LINK, or POST_BUILD commands.";
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
lfbt);
return nullptr;
}
return t;
}
cmTarget* cmMakefile::AddCustomCommandToTarget(
const std::string& target, const std::vector<std::string>& byproducts,
const std::vector<std::string>& depends,
const cmCustomCommandLines& commandLines, cmCustomCommandType type,
const char* comment, const char* workingDir, bool escapeOldStyle,
bool uses_terminal, const std::string& depfile, const std::string& job_pool,
bool command_expand_lists)
{
cmTarget* t = this->GetCustomCommandTarget(
target, cmObjectLibraryCommands::Reject, this->Backtrace);
// Validate custom commands.
if (!t || !this->ValidateCustomCommand(commandLines)) {
return t;
}
// Always create the byproduct sources and mark them generated.
this->CreateGeneratedByproducts(byproducts);
// Strings could be moved into the callback function with C++14.
cm::optional<std::string> commentStr = MakeOptionalString(comment);
cm::optional<std::string> workingStr = MakeOptionalString(workingDir);
// Dispatch command creation to allow generator expressions in outputs.
this->AddGeneratorAction([=](cmLocalGenerator& lg,
const cmListFileBacktrace& lfbt) {
BacktraceGuard guard(this->Backtrace, lfbt);
detail::AddCustomCommandToTarget(
lg, lfbt, cmCommandOrigin::Project, t, byproducts, depends, commandLines,
type, GetCStrOrNull(commentStr), GetCStrOrNull(workingStr),
escapeOldStyle, uses_terminal, depfile, job_pool, command_expand_lists);
});
return t;
}
void cmMakefile::AddCustomCommandToOutput(
const std::string& output, const std::vector<std::string>& depends,
const std::string& main_dependency, const cmCustomCommandLines& commandLines,
const char* comment, const char* workingDir,
const CommandSourceCallback& callback, bool replace, bool escapeOldStyle,
bool uses_terminal, bool command_expand_lists, const std::string& depfile,
const std::string& job_pool)
{
std::vector<std::string> no_byproducts;
cmImplicitDependsList no_implicit_depends;
this->AddCustomCommandToOutput(
{ output }, no_byproducts, depends, main_dependency, no_implicit_depends,
commandLines, comment, workingDir, callback, replace, escapeOldStyle,
uses_terminal, command_expand_lists, depfile, job_pool);
}
void cmMakefile::AddCustomCommandToOutput(
const std::vector<std::string>& outputs,
const std::vector<std::string>& byproducts,
const std::vector<std::string>& depends, const std::string& main_dependency,
const cmImplicitDependsList& implicit_depends,
const cmCustomCommandLines& commandLines, const char* comment,
const char* workingDir, const CommandSourceCallback& callback, bool replace,
bool escapeOldStyle, bool uses_terminal, bool command_expand_lists,
const std::string& depfile, const std::string& job_pool)
{
// Make sure there is at least one output.
if (outputs.empty()) {
cmSystemTools::Error("Attempt to add a custom rule with no output!");
return;
}
// Validate custom commands.
if (!this->ValidateCustomCommand(commandLines)) {
return;
}
// Always create the output sources and mark them generated.
this->CreateGeneratedOutputs(outputs);
this->CreateGeneratedByproducts(byproducts);
// Strings could be moved into the callback function with C++14.
cm::optional<std::string> commentStr = MakeOptionalString(comment);
cm::optional<std::string> workingStr = MakeOptionalString(workingDir);
// Dispatch command creation to allow generator expressions in outputs.
this->AddGeneratorAction([=](cmLocalGenerator& lg,
const cmListFileBacktrace& lfbt) {
BacktraceGuard guard(this->Backtrace, lfbt);
cmSourceFile* sf = detail::AddCustomCommandToOutput(
lg, lfbt, cmCommandOrigin::Project, outputs, byproducts, depends,
main_dependency, implicit_depends, commandLines,
GetCStrOrNull(commentStr), GetCStrOrNull(workingStr), replace,
escapeOldStyle, uses_terminal, command_expand_lists, depfile, job_pool);
if (callback && sf) {
callback(sf);
}
});
}
void cmMakefile::AddCustomCommandOldStyle(
const std::string& target, const std::vector<std::string>& outputs,
const std::vector<std::string>& depends, const std::string& source,
const cmCustomCommandLines& commandLines, const char* comment)
{
// Translate the old-style signature to one of the new-style
// signatures.
if (source == target) {
// In the old-style signature if the source and target were the
// same then it added a post-build rule to the target. Preserve
// this behavior.
std::vector<std::string> no_byproducts;
this->AddCustomCommandToTarget(
target, no_byproducts, depends, commandLines,
cmCustomCommandType::POST_BUILD, comment, nullptr);
return;
}
auto ti = this->Targets.find(target);
cmTarget* t = ti != this->Targets.end() ? &ti->second : nullptr;
auto addRuleFileToTarget = [=](cmSourceFile* sf) {
// If the rule was added to the source (and not a .rule file),
// then add the source to the target to make sure the rule is
// included.
if (!sf->GetPropertyAsBool("__CMAKE_RULE")) {
if (t) {
t->AddSource(sf->ResolveFullPath());
} else {
cmSystemTools::Error("Attempt to add a custom rule to a target "
"that does not exist yet for target " +
target);
}
}
};
// Each output must get its own copy of this rule.
cmsys::RegularExpression sourceFiles("\\.(C|M|c|c\\+\\+|cc|cpp|cxx|cu|m|mm|"
"rc|def|r|odl|idl|hpj|bat|h|h\\+\\+|"
"hm|hpp|hxx|in|txx|inl)$");
// Choose whether to use a main dependency.
if (sourceFiles.find(source)) {
// The source looks like a real file. Use it as the main dependency.
for (std::string const& output : outputs) {
this->AddCustomCommandToOutput(output, depends, source, commandLines,
comment, nullptr, addRuleFileToTarget);
}
} else {
std::string no_main_dependency;
std::vector<std::string> depends2 = depends;
depends2.push_back(source);
// The source may not be a real file. Do not use a main dependency.
for (std::string const& output : outputs) {
this->AddCustomCommandToOutput(output, depends2, no_main_dependency,
commandLines, comment, nullptr,
addRuleFileToTarget);
}
}
}
bool cmMakefile::AppendCustomCommandToOutput(
const std::string& output, const std::vector<std::string>& depends,
const cmImplicitDependsList& implicit_depends,
const cmCustomCommandLines& commandLines)
{
// Check as good as we can if there will be a command for this output.
if (!this->MightHaveCustomCommand(output)) {
return false;
}
// Validate custom commands.
if (this->ValidateCustomCommand(commandLines)) {
// Dispatch command creation to allow generator expressions in outputs.
this->AddGeneratorAction(
[=](cmLocalGenerator& lg, const cmListFileBacktrace& lfbt) {
BacktraceGuard guard(this->Backtrace, lfbt);
detail::AppendCustomCommandToOutput(lg, lfbt, output, depends,
implicit_depends, commandLines);
});
}
return true;
}
cmUtilityOutput cmMakefile::GetUtilityOutput(cmTarget* target)
{
std::string force = cmStrCat(this->GetCurrentBinaryDirectory(),
"/CMakeFiles/", target->GetName());
std::string forceCMP0049 = target->GetSourceCMP0049(force);
{
cmSourceFile* sf = nullptr;
if (!forceCMP0049.empty()) {
sf = this->GetOrCreateSource(forceCMP0049, false,
cmSourceFileLocationKind::Known);
}
// The output is not actually created so mark it symbolic.
if (sf) {
sf->SetProperty("SYMBOLIC", "1");
} else {
cmSystemTools::Error("Could not get source file entry for " + force);
}
}
return { std::move(force), std::move(forceCMP0049) };
}
cmTarget* cmMakefile::AddUtilityCommand(
const std::string& utilityName, bool excludeFromAll, const char* workingDir,
const std::vector<std::string>& byproducts,
const std::vector<std::string>& depends,
const cmCustomCommandLines& commandLines, bool escapeOldStyle,
const char* comment, bool uses_terminal, bool command_expand_lists,
const std::string& job_pool)
{
cmTarget* target = this->AddNewUtilityTarget(utilityName, excludeFromAll);
// Validate custom commands.
if ((commandLines.empty() && depends.empty()) ||
!this->ValidateCustomCommand(commandLines)) {
return target;
}
// Get the output name of the utility target and mark it generated.
cmUtilityOutput force = this->GetUtilityOutput(target);
this->GetOrCreateGeneratedSource(force.Name);
// Always create the byproduct sources and mark them generated.
this->CreateGeneratedByproducts(byproducts);
// Strings could be moved into the callback function with C++14.
cm::optional<std::string> commentStr = MakeOptionalString(comment);
cm::optional<std::string> workingStr = MakeOptionalString(workingDir);
// Dispatch command creation to allow generator expressions in outputs.
this->AddGeneratorAction(
[=](cmLocalGenerator& lg, const cmListFileBacktrace& lfbt) {
BacktraceGuard guard(this->Backtrace, lfbt);
detail::AddUtilityCommand(lg, lfbt, cmCommandOrigin::Project, target,
force, GetCStrOrNull(workingStr), byproducts,
depends, commandLines, escapeOldStyle,
GetCStrOrNull(commentStr), uses_terminal,
command_expand_lists, job_pool);
});
return target;
}
static void s_AddDefineFlag(std::string const& flag, std::string& dflags)
{
// remove any \n\r
std::string::size_type initSize = dflags.size();
dflags += ' ';
dflags += flag;
std::string::iterator flagStart = dflags.begin() + initSize + 1;
std::replace(flagStart, dflags.end(), '\n', ' ');
std::replace(flagStart, dflags.end(), '\r', ' ');
}
void cmMakefile::AddDefineFlag(std::string const& flag)
{
if (flag.empty()) {
return;
}
// Update the string used for the old DEFINITIONS property.
s_AddDefineFlag(flag, this->DefineFlagsOrig);
// If this is really a definition, update COMPILE_DEFINITIONS.
if (this->ParseDefineFlag(flag, false)) {
return;
}
// Add this flag that does not look like a definition.
s_AddDefineFlag(flag, this->DefineFlags);
}
static void s_RemoveDefineFlag(std::string const& flag, std::string& dflags)
{
std::string::size_type const len = flag.length();
// Remove all instances of the flag that are surrounded by
// whitespace or the beginning/end of the string.
for (std::string::size_type lpos = dflags.find(flag, 0);
lpos != std::string::npos; lpos = dflags.find(flag, lpos)) {
std::string::size_type rpos = lpos + len;
if ((lpos <= 0 || isspace(dflags[lpos - 1])) &&
(rpos >= dflags.size() || isspace(dflags[rpos]))) {
dflags.erase(lpos, len);
} else {
++lpos;
}
}
}
void cmMakefile::RemoveDefineFlag(std::string const& flag)
{
// Check the length of the flag to remove.
if (flag.empty()) {
return;
}
// Update the string used for the old DEFINITIONS property.
s_RemoveDefineFlag(flag, this->DefineFlagsOrig);
// If this is really a definition, update COMPILE_DEFINITIONS.
if (this->ParseDefineFlag(flag, true)) {
return;
}
// Remove this flag that does not look like a definition.
s_RemoveDefineFlag(flag, this->DefineFlags);
}
void cmMakefile::AddCompileDefinition(std::string const& option)
{
this->AppendProperty("COMPILE_DEFINITIONS", option.c_str());
}
void cmMakefile::AddCompileOption(std::string const& option)
{
this->AppendProperty("COMPILE_OPTIONS", option.c_str());
}
void cmMakefile::AddLinkOption(std::string const& option)
{
this->AppendProperty("LINK_OPTIONS", option.c_str());
}
void cmMakefile::AddLinkDirectory(std::string const& directory, bool before)
{
if (before) {
this->StateSnapshot.GetDirectory().PrependLinkDirectoriesEntry(
directory, this->Backtrace);
} else {
this->StateSnapshot.GetDirectory().AppendLinkDirectoriesEntry(
directory, this->Backtrace);
}
}
bool cmMakefile::ParseDefineFlag(std::string const& def, bool remove)
{
// Create a regular expression to match valid definitions.
static cmsys::RegularExpression valid("^[-/]D[A-Za-z_][A-Za-z0-9_]*(=.*)?$");
// Make sure the definition matches.
if (!valid.find(def)) {
return false;
}
// Definitions with non-trivial values require a policy check.
static cmsys::RegularExpression trivial(
"^[-/]D[A-Za-z_][A-Za-z0-9_]*(=[A-Za-z0-9_.]+)?$");
if (!trivial.find(def)) {
// This definition has a non-trivial value.
switch (this->GetPolicyStatus(cmPolicies::CMP0005)) {
case cmPolicies::WARN:
this->IssueMessage(MessageType::AUTHOR_WARNING,
cmPolicies::GetPolicyWarning(cmPolicies::CMP0005));
CM_FALLTHROUGH;
case cmPolicies::OLD:
// OLD behavior is to not escape the value. We should not
// convert the definition to use the property.
return false;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
this->IssueMessage(
MessageType::FATAL_ERROR,
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0005));
return false;
case cmPolicies::NEW:
// NEW behavior is to escape the value. Proceed to convert it
// to an entry in the property.
break;
}
}
// Get the definition part after the flag.
const char* define = def.c_str() + 2;
if (remove) {
if (const char* cdefs = this->GetProperty("COMPILE_DEFINITIONS")) {
// Expand the list.
std::vector<std::string> defs = cmExpandedList(cdefs);
// Recompose the list without the definition.
auto defEnd = std::remove(defs.begin(), defs.end(), define);
auto defBegin = defs.begin();
std::string ndefs = cmJoin(cmMakeRange(defBegin, defEnd), ";");
// Store the new list.
this->SetProperty("COMPILE_DEFINITIONS", ndefs.c_str());
}
} else {
// Append the definition to the directory property.
this->AppendProperty("COMPILE_DEFINITIONS", define);
}
return true;
}
void cmMakefile::InitializeFromParent(cmMakefile* parent)
{
this->SystemIncludeDirectories = parent->SystemIncludeDirectories;
// define flags
this->DefineFlags = parent->DefineFlags;
this->DefineFlagsOrig = parent->DefineFlagsOrig;
// Include transform property. There is no per-config version.
{
const char* prop = "IMPLICIT_DEPENDS_INCLUDE_TRANSFORM";
this->SetProperty(prop, parent->GetProperty(prop));
}
// compile definitions property and per-config versions
cmPolicies::PolicyStatus polSt = this->GetPolicyStatus(cmPolicies::CMP0043);
if (polSt == cmPolicies::WARN || polSt == cmPolicies::OLD) {
this->SetProperty("COMPILE_DEFINITIONS",
parent->GetProperty("COMPILE_DEFINITIONS"));
std::vector<std::string> configs;
this->GetConfigurations(configs);
for (std::string const& config : configs) {
std::string defPropName =
cmStrCat("COMPILE_DEFINITIONS_", cmSystemTools::UpperCase(config));
const char* prop = parent->GetProperty(defPropName);
this->SetProperty(defPropName, prop);
}
}
// labels
this->SetProperty("LABELS", parent->GetProperty("LABELS"));
// link libraries
this->SetProperty("LINK_LIBRARIES", parent->GetProperty("LINK_LIBRARIES"));
// the initial project name
this->StateSnapshot.SetProjectName(parent->StateSnapshot.GetProjectName());
// Copy include regular expressions.
this->ComplainFileRegularExpression = parent->ComplainFileRegularExpression;
// Imported targets.
this->ImportedTargets = parent->ImportedTargets;
// Recursion depth.
this->RecursionDepth = parent->RecursionDepth;
}
void cmMakefile::AddInstallGenerator(std::unique_ptr<cmInstallGenerator> g)
{
if (g) {
this->InstallGenerators.push_back(std::move(g));
}
}
void cmMakefile::AddTestGenerator(std::unique_ptr<cmTestGenerator> g)
{
if (g) {
this->TestGenerators.push_back(std::move(g));
}
}
void cmMakefile::PushFunctionScope(std::string const& fileName,
const cmPolicies::PolicyMap& pm)
{
this->StateSnapshot = this->GetState()->CreateFunctionCallSnapshot(
this->StateSnapshot, fileName);
assert(this->StateSnapshot.IsValid());
this->PushLoopBlockBarrier();
#if !defined(CMAKE_BOOTSTRAP)
this->GetGlobalGenerator()->GetFileLockPool().PushFunctionScope();
#endif
this->PushFunctionBlockerBarrier();
this->PushPolicy(true, pm);
}
void cmMakefile::PopFunctionScope(bool reportError)
{
this->PopPolicy();
this->PopSnapshot(reportError);
this->PopFunctionBlockerBarrier(reportError);
#if !defined(CMAKE_BOOTSTRAP)
this->GetGlobalGenerator()->GetFileLockPool().PopFunctionScope();
#endif
this->PopLoopBlockBarrier();
this->CheckForUnusedVariables();
}
void cmMakefile::PushMacroScope(std::string const& fileName,
const cmPolicies::PolicyMap& pm)
{
this->StateSnapshot =
this->GetState()->CreateMacroCallSnapshot(this->StateSnapshot, fileName);
assert(this->StateSnapshot.IsValid());
this->PushFunctionBlockerBarrier();
this->PushPolicy(true, pm);
}
void cmMakefile::PopMacroScope(bool reportError)
{
this->PopPolicy();
this->PopSnapshot(reportError);
this->PopFunctionBlockerBarrier(reportError);
}
bool cmMakefile::IsRootMakefile() const
{
return !this->StateSnapshot.GetBuildsystemDirectoryParent().IsValid();
}
class cmMakefile::BuildsystemFileScope
{
public:
BuildsystemFileScope(cmMakefile* mf)
: Makefile(mf)
, ReportError(true)
{
std::string currentStart =
cmStrCat(this->Makefile->StateSnapshot.GetDirectory().GetCurrentSource(),
"/CMakeLists.txt");
this->Makefile->StateSnapshot.SetListFile(currentStart);
this->Makefile->StateSnapshot =
this->Makefile->StateSnapshot.GetState()->CreatePolicyScopeSnapshot(
this->Makefile->StateSnapshot);
this->Makefile->PushFunctionBlockerBarrier();
this->GG = mf->GetGlobalGenerator();
this->CurrentMakefile = this->GG->GetCurrentMakefile();
this->Snapshot = this->GG->GetCMakeInstance()->GetCurrentSnapshot();
this->GG->GetCMakeInstance()->SetCurrentSnapshot(this->Snapshot);
this->GG->SetCurrentMakefile(mf);
#if !defined(CMAKE_BOOTSTRAP)
this->GG->GetFileLockPool().PushFileScope();
#endif
}
~BuildsystemFileScope()
{
this->Makefile->PopFunctionBlockerBarrier(this->ReportError);
this->Makefile->PopSnapshot(this->ReportError);
#if !defined(CMAKE_BOOTSTRAP)
this->GG->GetFileLockPool().PopFileScope();
#endif
this->GG->SetCurrentMakefile(this->CurrentMakefile);
this->GG->GetCMakeInstance()->SetCurrentSnapshot(this->Snapshot);
}
void Quiet() { this->ReportError = false; }
BuildsystemFileScope(const BuildsystemFileScope&) = delete;
BuildsystemFileScope& operator=(const BuildsystemFileScope&) = delete;
private:
cmMakefile* Makefile;
cmGlobalGenerator* GG;
cmMakefile* CurrentMakefile;
cmStateSnapshot Snapshot;
bool ReportError;
};
void cmMakefile::Configure()
{
std::string currentStart = cmStrCat(
this->StateSnapshot.GetDirectory().GetCurrentSource(), "/CMakeLists.txt");
// Add the bottom of all backtraces within this directory.
// We will never pop this scope because it should be available
// for messages during the generate step too.
this->Backtrace = this->Backtrace.Push(currentStart);
BuildsystemFileScope scope(this);
// make sure the CMakeFiles dir is there
std::string filesDir = cmStrCat(
this->StateSnapshot.GetDirectory().GetCurrentBinary(), "/CMakeFiles");
cmSystemTools::MakeDirectory(filesDir);
assert(cmSystemTools::FileExists(currentStart, true));
this->AddDefinition("CMAKE_PARENT_LIST_FILE", currentStart);
cmListFile listFile;
if (!listFile.ParseFile(currentStart.c_str(), this->GetMessenger(),
this->Backtrace)) {
return;
}
if (this->IsRootMakefile()) {
bool hasVersion = false;
// search for the right policy command
for (cmListFileFunction const& func : listFile.Functions) {
if (func.Name.Lower == "cmake_minimum_required") {
hasVersion = true;
break;
}
}
// if no policy command is found this is an error if they use any
// non advanced functions or a lot of functions
if (!hasVersion) {
bool isProblem = true;
if (listFile.Functions.size() < 30) {
// the list of simple commands DO NOT ADD TO THIS LIST!!!!!
// these commands must have backwards compatibility forever and
// and that is a lot longer than your tiny mind can comprehend mortal
std::set<std::string> allowedCommands;
allowedCommands.insert("project");
allowedCommands.insert("set");
allowedCommands.insert("if");
allowedCommands.insert("endif");
allowedCommands.insert("else");
allowedCommands.insert("elseif");
allowedCommands.insert("add_executable");
allowedCommands.insert("add_library");
allowedCommands.insert("target_link_libraries");
allowedCommands.insert("option");
allowedCommands.insert("message");
isProblem = false;
for (cmListFileFunction const& func : listFile.Functions) {
if (!cmContains(allowedCommands, func.Name.Lower)) {
isProblem = true;
break;
}
}
}
if (isProblem) {
// Tell the top level cmMakefile to diagnose
// this violation of CMP0000.
this->SetCheckCMP0000(true);
// Implicitly set the version for the user.
this->SetPolicyVersion("2.4", std::string());
}
}
bool hasProject = false;
// search for a project command
for (cmListFileFunction const& func : listFile.Functions) {
if (func.Name.Lower == "project") {
hasProject = true;
break;
}
}
// if no project command is found, add one
if (!hasProject) {
this->GetCMakeInstance()->IssueMessage(
MessageType::AUTHOR_WARNING,
"No project() command is present. The top-level CMakeLists.txt "
"file must contain a literal, direct call to the project() command. "
"Add a line of code such as\n"
" project(ProjectName)\n"
"near the top of the file, but after cmake_minimum_required().\n"
"CMake is pretending there is a \"project(Project)\" command on "
"the first line.",
this->Backtrace);
cmListFileFunction project;
project.Name.Lower = "project";
project.Arguments.emplace_back("Project", cmListFileArgument::Unquoted,
0);
project.Arguments.emplace_back("__CMAKE_INJECTED_PROJECT_COMMAND__",
cmListFileArgument::Unquoted, 0);
listFile.Functions.insert(listFile.Functions.begin(), project);
}
}
this->ReadListFile(listFile, currentStart);
if (cmSystemTools::GetFatalErrorOccured()) {
scope.Quiet();
}
// at the end handle any old style subdirs
std::vector<cmMakefile*> subdirs = this->UnConfiguredDirectories;
// for each subdir recurse
auto sdi = subdirs.begin();
for (; sdi != subdirs.end(); ++sdi) {
(*sdi)->StateSnapshot.InitializeFromParent_ForSubdirsCommand();
this->ConfigureSubDirectory(*sdi);
}
this->AddCMakeDependFilesFromUser();
}
void cmMakefile::ConfigureSubDirectory(cmMakefile* mf)
{
mf->InitializeFromParent(this);
std::string currentStart = mf->GetCurrentSourceDirectory();
if (this->GetCMakeInstance()->GetDebugOutput()) {
std::string msg = cmStrCat(" Entering ", currentStart);
cmSystemTools::Message(msg);
}
std::string const currentStartFile = currentStart + "/CMakeLists.txt";
if (!cmSystemTools::FileExists(currentStartFile, true)) {
// The file is missing. Check policy CMP0014.
std::ostringstream e;
/* clang-format off */
e << "The source directory\n"
<< " " << currentStart << "\n"
<< "does not contain a CMakeLists.txt file.";
/* clang-format on */
switch (this->GetPolicyStatus(cmPolicies::CMP0014)) {
case cmPolicies::WARN:
// Print the warning.
/* clang-format off */
e << "\n"
<< "CMake does not support this case but it used "
<< "to work accidentally and is being allowed for "
<< "compatibility."
<< "\n"
<< cmPolicies::GetPolicyWarning(cmPolicies::CMP0014);
/* clang-format on */
this->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
case cmPolicies::OLD:
// OLD behavior does not warn.
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
e << "\n" << cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0014);
CM_FALLTHROUGH;
case cmPolicies::NEW:
// NEW behavior prints the error.
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
}
return;
}
// finally configure the subdir
mf->Configure();
if (this->GetCMakeInstance()->GetDebugOutput()) {
std::string msg =
cmStrCat(" Returning to ", this->GetCurrentSourceDirectory());
cmSystemTools::Message(msg);
}
}
void cmMakefile::AddSubDirectory(const std::string& srcPath,
const std::string& binPath,
bool excludeFromAll, bool immediate)
{
// Make sure the binary directory is unique.
if (!this->EnforceUniqueDir(srcPath, binPath)) {
return;
}
cmStateSnapshot newSnapshot =
this->GetState()->CreateBuildsystemDirectorySnapshot(this->StateSnapshot);
newSnapshot.GetDirectory().SetCurrentSource(srcPath);
newSnapshot.GetDirectory().SetCurrentBinary(binPath);
cmSystemTools::MakeDirectory(binPath);
auto subMfu =
cm::make_unique<cmMakefile>(this->GlobalGenerator, newSnapshot);
auto subMf = subMfu.get();
this->GetGlobalGenerator()->AddMakefile(std::move(subMfu));
if (excludeFromAll) {
subMf->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
}
if (immediate) {
this->ConfigureSubDirectory(subMf);
} else {
this->UnConfiguredDirectories.push_back(subMf);
}
this->AddInstallGenerator(cm::make_unique<cmInstallSubdirectoryGenerator>(
subMf, binPath, excludeFromAll));
}
const std::string& cmMakefile::GetCurrentSourceDirectory() const
{
return this->StateSnapshot.GetDirectory().GetCurrentSource();
}
const std::string& cmMakefile::GetCurrentBinaryDirectory() const
{
return this->StateSnapshot.GetDirectory().GetCurrentBinary();
}
std::vector<cmTarget*> cmMakefile::GetImportedTargets() const
{
std::vector<cmTarget*> tgts;
tgts.reserve(this->ImportedTargets.size());
for (auto const& impTarget : this->ImportedTargets) {
tgts.push_back(impTarget.second);
}
return tgts;
}
void cmMakefile::AddIncludeDirectories(const std::vector<std::string>& incs,
bool before)
{
if (incs.empty()) {
return;
}
std::string entryString = cmJoin(incs, ";");
if (before) {
this->StateSnapshot.GetDirectory().PrependIncludeDirectoriesEntry(
entryString, this->Backtrace);
} else {
this->StateSnapshot.GetDirectory().AppendIncludeDirectoriesEntry(
entryString, this->Backtrace);
}
// Property on each target:
for (auto& target : this->Targets) {
cmTarget& t = target.second;
t.InsertInclude(entryString, this->Backtrace, before);
}
}
void cmMakefile::AddSystemIncludeDirectories(const std::set<std::string>& incs)
{
if (incs.empty()) {
return;
}
this->SystemIncludeDirectories.insert(incs.begin(), incs.end());
for (auto& target : this->Targets) {
cmTarget& t = target.second;
t.AddSystemIncludeDirectories(incs);
}
}
void cmMakefile::AddDefinition(const std::string& name, cm::string_view value)
{
if (this->VariableInitialized(name)) {
this->LogUnused("changing definition", name);
}
this->StateSnapshot.SetDefinition(name, value);
#ifndef CMAKE_BOOTSTRAP
cmVariableWatch* vv = this->GetVariableWatch();
if (vv) {
vv->VariableAccessed(name, cmVariableWatch::VARIABLE_MODIFIED_ACCESS,
value.data(), this);
}
#endif
}
void cmMakefile::AddDefinitionBool(const std::string& name, bool value)
{
this->AddDefinition(name, value ? "ON" : "OFF");
}
void cmMakefile::AddCacheDefinition(const std::string& name, const char* value,
const char* doc,
cmStateEnums::CacheEntryType type,
bool force)
{
const std::string* existingValue =
this->GetState()->GetInitializedCacheValue(name);
// must be outside the following if() to keep it alive long enough
std::string nvalue;
if (existingValue &&
(this->GetState()->GetCacheEntryType(name) ==
cmStateEnums::UNINITIALIZED)) {
// if this is not a force, then use the value from the cache
// if it is a force, then use the value being passed in
if (!force) {
value = existingValue->c_str();
}
if (type == cmStateEnums::PATH || type == cmStateEnums::FILEPATH) {
std::vector<std::string>::size_type cc;
std::vector<std::string> files;
nvalue = value ? value : "";
cmExpandList(nvalue, files);
nvalue.clear();
for (cc = 0; cc < files.size(); cc++) {
if (!cmIsOff(files[cc])) {
files[cc] = cmSystemTools::CollapseFullPath(files[cc]);
}
if (cc > 0) {
nvalue += ";";
}
nvalue += files[cc];
}
this->GetCMakeInstance()->AddCacheEntry(name, nvalue.c_str(), doc, type);
nvalue = *this->GetState()->GetInitializedCacheValue(name);
value = nvalue.c_str();
}
}
this->GetCMakeInstance()->AddCacheEntry(name, value, doc, type);
// if there was a definition then remove it
this->StateSnapshot.RemoveDefinition(name);
}
void cmMakefile::CheckForUnusedVariables() const
{
if (!this->WarnUnused) {
return;
}
for (const std::string& key : this->StateSnapshot.UnusedKeys()) {
this->LogUnused("out of scope", key);
}
}
void cmMakefile::MarkVariableAsUsed(const std::string& var)
{
this->StateSnapshot.GetDefinition(var);
}
bool cmMakefile::VariableInitialized(const std::string& var) const
{
return this->StateSnapshot.IsInitialized(var);
}
void cmMakefile::MaybeWarnUninitialized(std::string const& variable,
const char* sourceFilename) const
{
// check to see if we need to print a warning
// if strict mode is on and the variable has
// not been "cleared"/initialized with a set(foo ) call
if (this->GetCMakeInstance()->GetWarnUninitialized() &&
!this->VariableInitialized(variable)) {
if (this->CheckSystemVars ||
(sourceFilename && this->IsProjectFile(sourceFilename))) {
std::ostringstream msg;
msg << "uninitialized variable \'" << variable << "\'";
this->IssueMessage(MessageType::AUTHOR_WARNING, msg.str());
}
}
}
void cmMakefile::LogUnused(const char* reason, const std::string& name) const
{
if (this->WarnUnused) {
std::string path;
if (!this->ExecutionStatusStack.empty()) {
path = this->GetExecutionContext().FilePath;
} else {
path = cmStrCat(this->GetCurrentSourceDirectory(), "/CMakeLists.txt");
}
if (this->CheckSystemVars || this->IsProjectFile(path.c_str())) {
std::ostringstream msg;
msg << "unused variable (" << reason << ") \'" << name << "\'";
this->IssueMessage(MessageType::AUTHOR_WARNING, msg.str());
}
}
}
void cmMakefile::RemoveDefinition(const std::string& name)
{
if (this->VariableInitialized(name)) {
this->LogUnused("unsetting", name);
}
this->StateSnapshot.RemoveDefinition(name);
#ifndef CMAKE_BOOTSTRAP
cmVariableWatch* vv = this->GetVariableWatch();
if (vv) {
vv->VariableAccessed(name, cmVariableWatch::VARIABLE_REMOVED_ACCESS,
nullptr, this);
}
#endif
}
void cmMakefile::RemoveCacheDefinition(const std::string& name)
{
this->GetState()->RemoveCacheEntry(name);
}
void cmMakefile::SetProjectName(std::string const& p)
{
this->StateSnapshot.SetProjectName(p);
}
void cmMakefile::AddGlobalLinkInformation(cmTarget& target)
{
// for these targets do not add anything
switch (target.GetType()) {
case cmStateEnums::UTILITY:
case cmStateEnums::GLOBAL_TARGET:
case cmStateEnums::INTERFACE_LIBRARY:
return;
default:;
}
if (const char* linkLibsProp = this->GetProperty("LINK_LIBRARIES")) {
std::vector<std::string> linkLibs = cmExpandedList(linkLibsProp);
for (auto j = linkLibs.begin(); j != linkLibs.end(); ++j) {
std::string libraryName = *j;
cmTargetLinkLibraryType libType = GENERAL_LibraryType;
if (libraryName == "optimized") {
libType = OPTIMIZED_LibraryType;
++j;
libraryName = *j;
} else if (libraryName == "debug") {
libType = DEBUG_LibraryType;
++j;
libraryName = *j;
}
// This is equivalent to the target_link_libraries plain signature.
target.AddLinkLibrary(*this, libraryName, libType);
target.AppendProperty(
"INTERFACE_LINK_LIBRARIES",
target.GetDebugGeneratorExpressions(libraryName, libType));
}
}
}
void cmMakefile::AddAlias(const std::string& lname, std::string const& tgtName)
{
this->AliasTargets[lname] = tgtName;
this->GetGlobalGenerator()->AddAlias(lname, tgtName);
}
cmTarget* cmMakefile::AddLibrary(const std::string& lname,
cmStateEnums::TargetType type,
const std::vector<std::string>& srcs,
bool excludeFromAll)
{
assert(type == cmStateEnums::STATIC_LIBRARY ||
type == cmStateEnums::SHARED_LIBRARY ||
type == cmStateEnums::MODULE_LIBRARY ||
type == cmStateEnums::OBJECT_LIBRARY ||
type == cmStateEnums::INTERFACE_LIBRARY);
cmTarget* target = this->AddNewTarget(type, lname);
// Clear its dependencies. Otherwise, dependencies might persist
// over changes in CMakeLists.txt, making the information stale and
// hence useless.
target->ClearDependencyInformation(*this);
if (excludeFromAll) {
target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
}
target->AddSources(srcs);
this->AddGlobalLinkInformation(*target);
return target;
}
cmTarget* cmMakefile::AddExecutable(const std::string& exeName,
const std::vector<std::string>& srcs,
bool excludeFromAll)
{
cmTarget* target = this->AddNewTarget(cmStateEnums::EXECUTABLE, exeName);
if (excludeFromAll) {
target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
}
target->AddSources(srcs);
this->AddGlobalLinkInformation(*target);
return target;
}
cmTarget* cmMakefile::AddNewTarget(cmStateEnums::TargetType type,
const std::string& name)
{
auto it =
this->Targets
.emplace(name,
cmTarget(name, type, cmTarget::VisibilityNormal, this, true))
.first;
this->OrderedTargets.push_back(&it->second);
this->GetGlobalGenerator()->IndexTarget(&it->second);
this->GetStateSnapshot().GetDirectory().AddNormalTargetName(name);
return &it->second;
}
cmTarget* cmMakefile::AddNewUtilityTarget(const std::string& utilityName,
bool excludeFromAll)
{
cmTarget* target = this->AddNewTarget(cmStateEnums::UTILITY, utilityName);
if (excludeFromAll) {
target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
}
return target;
}
namespace {
bool AnyOutputMatches(const std::string& name,
const std::vector<std::string>& outputs)
{
for (std::string const& output : outputs) {
std::string::size_type pos = output.rfind(name);
// If the output matches exactly
if (pos != std::string::npos && pos == output.size() - name.size() &&
(pos == 0 || output[pos - 1] == '/')) {
return true;
}
}
return false;
}
bool AnyTargetCommandOutputMatches(
const std::string& name, const std::vector<cmCustomCommand>& commands)
{
for (cmCustomCommand const& command : commands) {
if (AnyOutputMatches(name, command.GetByproducts())) {
return true;
}
}
return false;
}
}
cmTarget* cmMakefile::LinearGetTargetWithOutput(const std::string& name) const
{
// We go through the ordered vector of targets to get reproducible results
// should multiple names match.
for (cmTarget* t : this->OrderedTargets) {
// Does the output of any command match the source file name?
if (AnyTargetCommandOutputMatches(name, t->GetPreBuildCommands())) {
return t;
}
if (AnyTargetCommandOutputMatches(name, t->GetPreLinkCommands())) {
return t;
}
if (AnyTargetCommandOutputMatches(name, t->GetPostBuildCommands())) {
return t;
}
}
return nullptr;
}
cmSourceFile* cmMakefile::LinearGetSourceFileWithOutput(
const std::string& name, cmSourceOutputKind kind, bool& byproduct) const
{
// Outputs take precedence over byproducts.
byproduct = false;
cmSourceFile* fallback = nullptr;
// Look through all the source files that have custom commands and see if the
// custom command has the passed source file as an output.
for (const auto& src : this->SourceFiles) {
// Does this source file have a custom command?
if (src->GetCustomCommand()) {
// Does the output of the custom command match the source file name?
if (AnyOutputMatches(name, src->GetCustomCommand()->GetOutputs())) {
// Return the first matching output.
return src.get();
}
if (kind == cmSourceOutputKind::OutputOrByproduct) {
if (AnyOutputMatches(name, src->GetCustomCommand()->GetByproducts())) {
// Do not return the source yet as there might be a matching output.
fallback = src.get();
}
}
}
}
// Did we find a byproduct?
byproduct = fallback != nullptr;
return fallback;
}
cmSourcesWithOutput cmMakefile::GetSourcesWithOutput(
const std::string& name) const
{
// Linear search? Also see GetSourceFileWithOutput for detail.
if (!cmSystemTools::FileIsFullPath(name)) {
cmSourcesWithOutput sources;
sources.Target = this->LinearGetTargetWithOutput(name);
sources.Source = this->LinearGetSourceFileWithOutput(
name, cmSourceOutputKind::OutputOrByproduct, sources.SourceIsByproduct);
return sources;
}
// Otherwise we use an efficient lookup map.
auto o = this->OutputToSource.find(name);
if (o != this->OutputToSource.end()) {
return o->second.Sources;
}
return {};
}
cmSourceFile* cmMakefile::GetSourceFileWithOutput(
const std::string& name, cmSourceOutputKind kind) const
{
// If the queried path is not absolute we use the backward compatible
// linear-time search for an output with a matching suffix.
if (!cmSystemTools::FileIsFullPath(name)) {
bool byproduct = false;
return this->LinearGetSourceFileWithOutput(name, kind, byproduct);
}
// Otherwise we use an efficient lookup map.
auto o = this->OutputToSource.find(name);
if (o != this->OutputToSource.end() &&
(!o->second.Sources.SourceIsByproduct ||
kind == cmSourceOutputKind::OutputOrByproduct)) {
// Source file could also be null pointer for example if we found the
// byproduct of a utility target, a PRE_BUILD, PRE_LINK, or POST_BUILD
// command of a target, or a not yet created custom command.
return o->second.Sources.Source;
}
return nullptr;
}
bool cmMakefile::MightHaveCustomCommand(const std::string& name) const
{
if (this->DelayedOutputFilesHaveGenex ||
cmGeneratorExpression::Find(name) != std::string::npos) {
// Could be more restrictive, but for now we assume that there could always
// be a match when generator expressions are involved.
return true;
}
// Also see LinearGetSourceFileWithOutput.
if (!cmSystemTools::FileIsFullPath(name)) {
return AnyOutputMatches(name, this->DelayedOutputFiles);
}
// Otherwise we use an efficient lookup map.
auto o = this->OutputToSource.find(name);
if (o != this->OutputToSource.end()) {
return o->second.SourceMightBeOutput;
}
return false;
}
void cmMakefile::AddTargetByproducts(
cmTarget* target, const std::vector<std::string>& byproducts)
{
for (std::string const& o : byproducts) {
this->UpdateOutputToSourceMap(o, target);
}
}
void cmMakefile::AddSourceOutputs(cmSourceFile* source,
const std::vector<std::string>& outputs,
const std::vector<std::string>& byproducts)
{
for (std::string const& o : outputs) {
this->UpdateOutputToSourceMap(o, source, false);
}
for (std::string const& o : byproducts) {
this->UpdateOutputToSourceMap(o, source, true);
}
}
void cmMakefile::UpdateOutputToSourceMap(std::string const& byproduct,
cmTarget* target)
{
SourceEntry entry;
entry.Sources.Target = target;
auto pr = this->OutputToSource.emplace(byproduct, entry);
if (!pr.second) {
SourceEntry& current = pr.first->second;
// Has the target already been set?
if (!current.Sources.Target) {
current.Sources.Target = target;
} else {
// Multiple custom commands/targets produce the same output (source file
// or target). See also comment in other UpdateOutputToSourceMap
// overload.
//
// TODO: Warn the user about this case.
}
}
}
void cmMakefile::UpdateOutputToSourceMap(std::string const& output,
cmSourceFile* source, bool byproduct)
{
SourceEntry entry;
entry.Sources.Source = source;
entry.Sources.SourceIsByproduct = byproduct;
entry.SourceMightBeOutput = !byproduct;
auto pr = this->OutputToSource.emplace(output, entry);
if (!pr.second) {
SourceEntry& current = pr.first->second;
// Outputs take precedence over byproducts
if (!current.Sources.Source ||
(current.Sources.SourceIsByproduct && !byproduct)) {
current.Sources.Source = source;
current.Sources.SourceIsByproduct = false;
current.SourceMightBeOutput = true;
} else {
// Multiple custom commands produce the same output but may
// be attached to a different source file (MAIN_DEPENDENCY).
// LinearGetSourceFileWithOutput would return the first one,
// so keep the mapping for the first one.
//
// TODO: Warn the user about this case. However, the VS 8 generator
// triggers it for separate generate.stamp rules in ZERO_CHECK and
// individual targets.
}
}
}
#if !defined(CMAKE_BOOTSTRAP)
cmSourceGroup* cmMakefile::GetSourceGroup(
const std::vector<std::string>& name) const
{
cmSourceGroup* sg = nullptr;
// first look for source group starting with the same as the one we want
for (cmSourceGroup const& srcGroup : this->SourceGroups) {
std::string const& sgName = srcGroup.GetName();
if (sgName == name[0]) {
sg = const_cast<cmSourceGroup*>(&srcGroup);
break;
}
}
if (sg != nullptr) {
// iterate through its children to find match source group
for (unsigned int i = 1; i < name.size(); ++i) {
sg = sg->LookupChild(name[i]);
if (sg == nullptr) {
break;
}
}
}
return sg;
}
void cmMakefile::AddSourceGroup(const std::string& name, const char* regex)
{
std::vector<std::string> nameVector;
nameVector.push_back(name);
this->AddSourceGroup(nameVector, regex);
}
void cmMakefile::AddSourceGroup(const std::vector<std::string>& name,
const char* regex)
{
cmSourceGroup* sg = nullptr;
std::vector<std::string> currentName;
int i = 0;
const int lastElement = static_cast<int>(name.size() - 1);
for (i = lastElement; i >= 0; --i) {
currentName.assign(name.begin(), name.begin() + i + 1);
sg = this->GetSourceGroup(currentName);
if (sg != nullptr) {
break;
}
}
// i now contains the index of the last found component
if (i == lastElement) {
// group already exists, replace its regular expression
if (regex && sg) {
// We only want to set the regular expression. If there are already
// source files in the group, we don't want to remove them.
sg->SetGroupRegex(regex);
}
return;
}
if (i == -1) {
// group does not exist nor belong to any existing group
// add its first component
this->SourceGroups.emplace_back(name[0], regex);
sg = this->GetSourceGroup(currentName);
i = 0; // last component found
}
if (!sg) {
cmSystemTools::Error("Could not create source group ");
return;
}
// build the whole source group path
for (++i; i <= lastElement; ++i) {
sg->AddChild(cmSourceGroup(name[i], nullptr, sg->GetFullName().c_str()));
sg = sg->LookupChild(name[i]);
}
sg->SetGroupRegex(regex);
}
cmSourceGroup* cmMakefile::GetOrCreateSourceGroup(
const std::vector<std::string>& folders)
{
cmSourceGroup* sg = this->GetSourceGroup(folders);
if (sg == nullptr) {
this->AddSourceGroup(folders);
sg = this->GetSourceGroup(folders);
}
return sg;
}
cmSourceGroup* cmMakefile::GetOrCreateSourceGroup(const std::string& name)
{
const char* delimiter = this->GetDefinition("SOURCE_GROUP_DELIMITER");
if (delimiter == nullptr) {
delimiter = "\\";
}
return this->GetOrCreateSourceGroup(cmTokenize(name, delimiter));
}
/**
* Find a source group whose regular expression matches the filename
* part of the given source name. Search backward through the list of
* source groups, and take the first matching group found. This way
* non-inherited SOURCE_GROUP commands will have precedence over
* inherited ones.
*/
cmSourceGroup* cmMakefile::FindSourceGroup(
const std::string& source, std::vector<cmSourceGroup>& groups) const
{
// First search for a group that lists the file explicitly.
for (auto sg = groups.rbegin(); sg != groups.rend(); ++sg) {
cmSourceGroup* result = sg->MatchChildrenFiles(source);
if (result) {
return result;
}
}
// Now search for a group whose regex matches the file.
for (auto sg = groups.rbegin(); sg != groups.rend(); ++sg) {
cmSourceGroup* result = sg->MatchChildrenRegex(source);
if (result) {
return result;
}
}
// Shouldn't get here, but just in case, return the default group.
return groups.data();
}
#endif
static bool mightExpandVariablesCMP0019(const char* s)
{
return s && *s && strstr(s, "${") && strchr(s, '}');
}
void cmMakefile::ExpandVariablesCMP0019()
{
// Drop this ancient compatibility behavior with a policy.
cmPolicies::PolicyStatus pol = this->GetPolicyStatus(cmPolicies::CMP0019);
if (pol != cmPolicies::OLD && pol != cmPolicies::WARN) {
return;
}
std::ostringstream w;
const char* includeDirs = this->GetProperty("INCLUDE_DIRECTORIES");
if (mightExpandVariablesCMP0019(includeDirs)) {
std::string dirs = includeDirs;
this->ExpandVariablesInString(dirs, true, true);
if (pol == cmPolicies::WARN && dirs != includeDirs) {
/* clang-format off */
w << "Evaluated directory INCLUDE_DIRECTORIES\n"
<< " " << includeDirs << "\n"
<< "as\n"
<< " " << dirs << "\n";
/* clang-format on */
}
this->SetProperty("INCLUDE_DIRECTORIES", dirs.c_str());
}
// Also for each target's INCLUDE_DIRECTORIES property:
for (auto& target : this->Targets) {
cmTarget& t = target.second;
if (t.GetType() == cmStateEnums::INTERFACE_LIBRARY ||
t.GetType() == cmStateEnums::GLOBAL_TARGET) {
continue;
}
includeDirs = t.GetProperty("INCLUDE_DIRECTORIES");
if (mightExpandVariablesCMP0019(includeDirs)) {
std::string dirs = includeDirs;
this->ExpandVariablesInString(dirs, true, true);
if (pol == cmPolicies::WARN && dirs != includeDirs) {
/* clang-format off */
w << "Evaluated target " << t.GetName() << " INCLUDE_DIRECTORIES\n"
<< " " << includeDirs << "\n"
<< "as\n"
<< " " << dirs << "\n";
/* clang-format on */
}
t.SetProperty("INCLUDE_DIRECTORIES", dirs);
}
}
if (const char* linkDirsProp = this->GetProperty("LINK_DIRECTORIES")) {
if (mightExpandVariablesCMP0019(linkDirsProp)) {
std::string d = linkDirsProp;
std::string orig = linkDirsProp;
this->ExpandVariablesInString(d, true, true);
if (pol == cmPolicies::WARN && d != orig) {
/* clang-format off */
w << "Evaluated link directories\n"
<< " " << orig << "\n"
<< "as\n"
<< " " << d << "\n";
/* clang-format on */
}
}
}
if (const char* linkLibsProp = this->GetProperty("LINK_LIBRARIES")) {
std::vector<std::string> linkLibs = cmExpandedList(linkLibsProp);
for (auto l = linkLibs.begin(); l != linkLibs.end(); ++l) {
std::string libName = *l;
if (libName == "optimized") {
++l;
libName = *l;
} else if (libName == "debug") {
++l;
libName = *l;
}
if (mightExpandVariablesCMP0019(libName.c_str())) {
std::string orig = libName;
this->ExpandVariablesInString(libName, true, true);
if (pol == cmPolicies::WARN && libName != orig) {
/* clang-format off */
w << "Evaluated link library\n"
<< " " << orig << "\n"
<< "as\n"
<< " " << libName << "\n";
/* clang-format on */
}
}
}
}
if (!w.str().empty()) {
std::ostringstream m;
/* clang-format off */
m << cmPolicies::GetPolicyWarning(cmPolicies::CMP0019)
<< "\n"
<< "The following variable evaluations were encountered:\n"
<< w.str();
/* clang-format on */
this->GetCMakeInstance()->IssueMessage(MessageType::AUTHOR_WARNING,
m.str(), this->Backtrace);
}
}
bool cmMakefile::IsOn(const std::string& name) const
{
const char* value = this->GetDefinition(name);
return cmIsOn(value);
}
bool cmMakefile::IsSet(const std::string& name) const
{
const char* value = this->GetDefinition(name);
if (!value) {
return false;
}
if (!*value) {
return false;
}
if (cmIsNOTFOUND(value)) {
return false;
}
return true;
}
bool cmMakefile::PlatformIs32Bit() const
{
if (const char* plat_abi =
this->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI")) {
if (strcmp(plat_abi, "ELF X32") == 0) {
return false;
}
}
if (const char* sizeof_dptr = this->GetDefinition("CMAKE_SIZEOF_VOID_P")) {
return atoi(sizeof_dptr) == 4;
}
return false;
}
bool cmMakefile::PlatformIs64Bit() const
{
if (const char* sizeof_dptr = this->GetDefinition("CMAKE_SIZEOF_VOID_P")) {
return atoi(sizeof_dptr) == 8;
}
return false;
}
bool cmMakefile::PlatformIsx32() const
{
if (const char* plat_abi =
this->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI")) {
if (strcmp(plat_abi, "ELF X32") == 0) {
return true;
}
}
return false;
}
cmMakefile::AppleSDK cmMakefile::GetAppleSDKType() const
{
std::string sdkRoot;
sdkRoot = this->GetSafeDefinition("CMAKE_OSX_SYSROOT");
sdkRoot = cmSystemTools::LowerCase(sdkRoot);
struct
{
std::string name;
AppleSDK sdk;
} const sdkDatabase[]{
{ "appletvos", AppleSDK::AppleTVOS },
{ "appletvsimulator", AppleSDK::AppleTVSimulator },
{ "iphoneos", AppleSDK::IPhoneOS },
{ "iphonesimulator", AppleSDK::IPhoneSimulator },
{ "watchos", AppleSDK::WatchOS },
{ "watchsimulator", AppleSDK::WatchSimulator },
};
for (auto const& entry : sdkDatabase) {
if (sdkRoot.find(entry.name) == 0 ||
sdkRoot.find(std::string("/") + entry.name) != std::string::npos) {
return entry.sdk;
}
}
return AppleSDK::MacOS;
}
bool cmMakefile::PlatformIsAppleEmbedded() const
{
return GetAppleSDKType() != AppleSDK::MacOS;
}
const char* cmMakefile::GetSONameFlag(const std::string& language) const
{
std::string name = "CMAKE_SHARED_LIBRARY_SONAME";
if (!language.empty()) {
name += "_";
name += language;
}
name += "_FLAG";
return GetDefinition(name);
}
bool cmMakefile::CanIWriteThisFile(std::string const& fileName) const
{
if (!this->IsOn("CMAKE_DISABLE_SOURCE_CHANGES")) {
return true;
}
// If we are doing an in-source build, then the test will always fail
if (cmSystemTools::SameFile(this->GetHomeDirectory(),
this->GetHomeOutputDirectory())) {
return !this->IsOn("CMAKE_DISABLE_IN_SOURCE_BUILD");
}
return !cmSystemTools::IsSubDirectory(fileName, this->GetHomeDirectory()) ||
cmSystemTools::IsSubDirectory(fileName, this->GetHomeOutputDirectory()) ||
cmSystemTools::SameFile(fileName, this->GetHomeOutputDirectory());
}
const std::string& cmMakefile::GetRequiredDefinition(
const std::string& name) const
{
static std::string const empty;
const std::string* def = GetDef(name);
if (!def) {
cmSystemTools::Error("Error required internal CMake variable not "
"set, cmake may not be built correctly.\n"
"Missing variable is:\n" +
name);
return empty;
}
return *def;
}
bool cmMakefile::IsDefinitionSet(const std::string& name) const
{
const std::string* def = this->StateSnapshot.GetDefinition(name);
if (!def) {
def = this->GetState()->GetInitializedCacheValue(name);
}
#ifndef CMAKE_BOOTSTRAP
if (cmVariableWatch* vv = this->GetVariableWatch()) {
if (!def) {
vv->VariableAccessed(
name, cmVariableWatch::UNKNOWN_VARIABLE_DEFINED_ACCESS, nullptr, this);
}
}
#endif
return def != nullptr;
}
const std::string* cmMakefile::GetDef(const std::string& name) const
{
const std::string* def = this->StateSnapshot.GetDefinition(name);
if (!def) {
def = this->GetState()->GetInitializedCacheValue(name);
}
#ifndef CMAKE_BOOTSTRAP
cmVariableWatch* vv = this->GetVariableWatch();
if (vv && !this->SuppressSideEffects) {
bool const watch_function_executed =
vv->VariableAccessed(name,
def ? cmVariableWatch::VARIABLE_READ_ACCESS
: cmVariableWatch::UNKNOWN_VARIABLE_READ_ACCESS,
(def ? def->c_str() : nullptr), this);
if (watch_function_executed) {
// A callback was executed and may have caused re-allocation of the
// variable storage. Look it up again for now.
// FIXME: Refactor variable storage to avoid this problem.
def = this->StateSnapshot.GetDefinition(name);
if (!def) {
def = this->GetState()->GetInitializedCacheValue(name);
}
}
}
#endif
return def;
}
const char* cmMakefile::GetDefinition(const std::string& name) const
{
const std::string* def = GetDef(name);
if (!def) {
return nullptr;
}
return def->c_str();
}
const std::string& cmMakefile::GetSafeDefinition(const std::string& name) const
{
static std::string const empty;
const std::string* def = GetDef(name);
if (!def) {
return empty;
}
return *def;
}
std::vector<std::string> cmMakefile::GetDefinitions() const
{
std::vector<std::string> res = this->StateSnapshot.ClosureKeys();
cm::append(res, this->GetState()->GetCacheEntryKeys());
std::sort(res.begin(), res.end());
return res;
}
const std::string& cmMakefile::ExpandVariablesInString(
std::string& source) const
{
return this->ExpandVariablesInString(source, false, false);
}
const std::string& cmMakefile::ExpandVariablesInString(
std::string& source, bool escapeQuotes, bool noEscapes, bool atOnly,
const char* filename, long line, bool removeEmpty, bool replaceAt) const
{
bool compareResults = false;
MessageType mtype = MessageType::LOG;
std::string errorstr;
std::string original;
// Sanity check the @ONLY mode.
if (atOnly && (!noEscapes || !removeEmpty)) {
// This case should never be called. At-only is for
// configure-file/string which always does no escapes.
this->IssueMessage(MessageType::INTERNAL_ERROR,
"ExpandVariablesInString @ONLY called "
"on something with escapes.");
return source;
}
// Variables used in the WARN case.
std::string newResult;
std::string newErrorstr;
MessageType newError = MessageType::LOG;
switch (this->GetPolicyStatus(cmPolicies::CMP0053)) {
case cmPolicies::WARN: {
// Save the original string for the warning.
original = source;
newResult = source;
compareResults = true;
// Suppress variable watches to avoid calling hooks twice. Suppress new
// dereferences since the OLD behavior is still what is actually used.
this->SuppressSideEffects = true;
newError = ExpandVariablesInStringNew(newErrorstr, newResult,
escapeQuotes, noEscapes, atOnly,
filename, line, replaceAt);
this->SuppressSideEffects = false;
CM_FALLTHROUGH;
}
case cmPolicies::OLD:
mtype =
ExpandVariablesInStringOld(errorstr, source, escapeQuotes, noEscapes,
atOnly, filename, line, removeEmpty, true);
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
// Messaging here would be *very* verbose.
case cmPolicies::NEW:
mtype =
ExpandVariablesInStringNew(errorstr, source, escapeQuotes, noEscapes,
atOnly, filename, line, replaceAt);
break;
}
// If it's an error in either case, just report the error...
if (mtype != MessageType::LOG) {
if (mtype == MessageType::FATAL_ERROR) {
cmSystemTools::SetFatalErrorOccured();
}
this->IssueMessage(mtype, errorstr);
}
// ...otherwise, see if there's a difference that needs to be warned about.
else if (compareResults && (newResult != source || newError != mtype)) {
std::string msg =
cmStrCat(cmPolicies::GetPolicyWarning(cmPolicies::CMP0053), '\n');
std::string msg_input = original;
cmSystemTools::ReplaceString(msg_input, "\n", "\n ");
msg += "For input:\n '";
msg += msg_input;
msg += "'\n";
std::string msg_old = source;
cmSystemTools::ReplaceString(msg_old, "\n", "\n ");
msg += "the old evaluation rules produce:\n '";
msg += msg_old;
msg += "'\n";
if (newError == mtype) {
std::string msg_new = newResult;
cmSystemTools::ReplaceString(msg_new, "\n", "\n ");
msg += "but the new evaluation rules produce:\n '";
msg += msg_new;
msg += "'\n";
} else {
std::string msg_err = newErrorstr;
cmSystemTools::ReplaceString(msg_err, "\n", "\n ");
msg += "but the new evaluation rules produce an error:\n ";
msg += msg_err;
msg += "\n";
}
msg +=
"Using the old result for compatibility since the policy is not set.";
this->IssueMessage(MessageType::AUTHOR_WARNING, msg);
}
return source;
}
MessageType cmMakefile::ExpandVariablesInStringOld(
std::string& errorstr, std::string& source, bool escapeQuotes,
bool noEscapes, bool atOnly, const char* filename, long line,
bool removeEmpty, bool replaceAt) const
{
// Fast path strings without any special characters.
if (source.find_first_of("$@\\") == std::string::npos) {
return MessageType::LOG;
}
// Special-case the @ONLY mode.
if (atOnly) {
// Store an original copy of the input.
std::string input = source;
// Start with empty output.
source.clear();
// Look for one @VAR@ at a time.
const char* in = input.c_str();
while (this->cmAtVarRegex.find(in)) {
// Get the range of the string to replace.
const char* first = in + this->cmAtVarRegex.start();
const char* last = in + this->cmAtVarRegex.end();
// Store the unchanged part of the string now.
source.append(in, first - in);
// Lookup the definition of VAR.
std::string var(first + 1, last - first - 2);
if (const char* val = this->GetDefinition(var)) {
// Store the value in the output escaping as requested.
if (escapeQuotes) {
source.append(cmEscapeQuotes(val));
} else {
source.append(val);
}
}
// Continue looking for @VAR@ further along the string.
in = last;
}
// Append the rest of the unchanged part of the string.
source.append(in);
return MessageType::LOG;
}
// This method replaces ${VAR} and @VAR@ where VAR is looked up
// with GetDefinition(), if not found in the map, nothing is expanded.
// It also supports the $ENV{VAR} syntax where VAR is looked up in
// the current environment variables.
cmCommandArgumentParserHelper parser;
parser.SetMakefile(this);
parser.SetLineFile(line, filename);
parser.SetEscapeQuotes(escapeQuotes);
parser.SetNoEscapeMode(noEscapes);
parser.SetReplaceAtSyntax(replaceAt);
parser.SetRemoveEmpty(removeEmpty);
int res = parser.ParseString(source.c_str(), 0);
const char* emsg = parser.GetError();
MessageType mtype = MessageType::LOG;
if (res && !emsg[0]) {
source = parser.GetResult();
} else {
// Construct the main error message.
std::ostringstream error;
error << "Syntax error in cmake code ";
if (filename && line > 0) {
// This filename and line number may be more specific than the
// command context because one command invocation can have
// arguments on multiple lines.
error << "at\n"
<< " " << filename << ":" << line << "\n";
}
error << "when parsing string\n"
<< " " << source << "\n";
error << emsg;
// If the parser failed ("res" is false) then this is a real
// argument parsing error, so the policy applies. Otherwise the
// parser reported an error message without failing because the
// helper implementation is unhappy, which has always reported an
// error.
mtype = MessageType::FATAL_ERROR;
if (!res) {
// This is a real argument parsing error. Use policy CMP0010 to
// decide whether it is an error.
switch (this->GetPolicyStatus(cmPolicies::CMP0010)) {
case cmPolicies::WARN:
error << "\n" << cmPolicies::GetPolicyWarning(cmPolicies::CMP0010);
CM_FALLTHROUGH;
case cmPolicies::OLD:
// OLD behavior is to just warn and continue.
mtype = MessageType::AUTHOR_WARNING;
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
error << "\n"
<< cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0010);
case cmPolicies::NEW:
// NEW behavior is to report the error.
break;
}
}
errorstr = error.str();
}
return mtype;
}
enum t_domain
{
NORMAL,
ENVIRONMENT,
CACHE
};
struct t_lookup
{
t_domain domain = NORMAL;
size_t loc = 0;
};
bool cmMakefile::IsProjectFile(const char* filename) const
{
return cmSystemTools::IsSubDirectory(filename, this->GetHomeDirectory()) ||
(cmSystemTools::IsSubDirectory(filename, this->GetHomeOutputDirectory()) &&
!cmSystemTools::IsSubDirectory(filename, "/CMakeFiles"));
}
int cmMakefile::GetRecursionDepth() const
{
return this->RecursionDepth;
}
void cmMakefile::SetRecursionDepth(int recursionDepth)
{
this->RecursionDepth = recursionDepth;
}
MessageType cmMakefile::ExpandVariablesInStringNew(
std::string& errorstr, std::string& source, bool escapeQuotes,
bool noEscapes, bool atOnly, const char* filename, long line,
bool replaceAt) const
{
// This method replaces ${VAR} and @VAR@ where VAR is looked up
// with GetDefinition(), if not found in the map, nothing is expanded.
// It also supports the $ENV{VAR} syntax where VAR is looked up in
// the current environment variables.
const char* in = source.c_str();
const char* last = in;
std::string result;
result.reserve(source.size());
std::vector<t_lookup> openstack;
bool error = false;
bool done = false;
MessageType mtype = MessageType::LOG;
cmState* state = this->GetCMakeInstance()->GetState();
static const std::string lineVar = "CMAKE_CURRENT_LIST_LINE";
do {
char inc = *in;
switch (inc) {
case '}':
if (!openstack.empty()) {
t_lookup var = openstack.back();
openstack.pop_back();
result.append(last, in - last);
std::string const& lookup = result.substr(var.loc);
const char* value = nullptr;
std::string varresult;
std::string svalue;
switch (var.domain) {
case NORMAL:
if (filename && lookup == lineVar) {
varresult = std::to_string(line);
} else {
value = this->GetDefinition(lookup);
}
break;
case ENVIRONMENT:
if (cmSystemTools::GetEnv(lookup, svalue)) {
value = svalue.c_str();
}
break;
case CACHE:
value = state->GetCacheEntryValue(lookup);
break;
}
// Get the string we're meant to append to.
if (value) {
if (escapeQuotes) {
varresult = cmEscapeQuotes(value);
} else {
varresult = value;
}
} else if (!this->SuppressSideEffects) {
this->MaybeWarnUninitialized(lookup, filename);
}
result.replace(var.loc, result.size() - var.loc, varresult);
// Start looking from here on out.
last = in + 1;
}
break;
case '$':
if (!atOnly) {
t_lookup lookup;
const char* next = in + 1;
const char* start = nullptr;
char nextc = *next;
if (nextc == '{') {
// Looking for a variable.
start = in + 2;
lookup.domain = NORMAL;
} else if (nextc == '<') {
} else if (!nextc) {
result.append(last, next - last);
last = next;
} else if (cmHasLiteralPrefix(next, "ENV{")) {
// Looking for an environment variable.
start = in + 5;
lookup.domain = ENVIRONMENT;
} else if (cmHasLiteralPrefix(next, "CACHE{")) {
// Looking for a cache variable.
start = in + 7;
lookup.domain = CACHE;
} else {
if (this->cmNamedCurly.find(next)) {
errorstr = "Syntax $" +
std::string(next, this->cmNamedCurly.end()) +
"{} is not supported. Only ${}, $ENV{}, "
"and $CACHE{} are allowed.";
mtype = MessageType::FATAL_ERROR;
error = true;
}
}
if (start) {
result.append(last, in - last);
last = start;
in = start - 1;
lookup.loc = result.size();
openstack.push_back(lookup);
}
break;
}
CM_FALLTHROUGH;
case '\\':
if (!noEscapes) {
const char* next = in + 1;
char nextc = *next;
if (nextc == 't') {
result.append(last, in - last);
result.append("\t");
last = next + 1;
} else if (nextc == 'n') {
result.append(last, in - last);
result.append("\n");
last = next + 1;
} else if (nextc == 'r') {
result.append(last, in - last);
result.append("\r");
last = next + 1;
} else if (nextc == ';' && openstack.empty()) {
// Handled in ExpandListArgument; pass the backslash literally.
} else if (isalnum(nextc) || nextc == '\0') {
errorstr += "Invalid character escape '\\";
if (nextc) {
errorstr += nextc;
errorstr += "'.";
} else {
errorstr += "' (at end of input).";
}
error = true;
} else {
// Take what we've found so far, skipping the escape character.
result.append(last, in - last);
// Start tracking from the next character.
last = in + 1;
}
// Skip the next character since it was escaped, but don't read past
// the end of the string.
if (*last) {
++in;
}
}
break;
case '\n':
// Onto the next line.
++line;
break;
case '\0':
done = true;
break;
case '@':
if (replaceAt) {
const char* nextAt = strchr(in + 1, '@');
if (nextAt && nextAt != in + 1 &&
nextAt ==
in + 1 +
strspn(in + 1,
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789/_.+-")) {
std::string variable(in + 1, nextAt - in - 1);
std::string varresult;
if (filename && variable == lineVar) {
varresult = std::to_string(line);
} else {
const std::string* def = this->GetDef(variable);
if (def) {
varresult = *def;
} else if (!this->SuppressSideEffects) {
this->MaybeWarnUninitialized(variable, filename);
}
}
if (escapeQuotes) {
varresult = cmEscapeQuotes(varresult);
}
// Skip over the variable.
result.append(last, in - last);
result.append(varresult);
in = nextAt;
last = in + 1;
break;
}
}
// Failed to find a valid @ expansion; treat it as literal.
/* FALLTHROUGH */
default: {
if (!openstack.empty() &&
!(isalnum(inc) || inc == '_' || inc == '/' || inc == '.' ||
inc == '+' || inc == '-')) {
errorstr += "Invalid character (\'";
errorstr += inc;
result.append(last, in - last);
errorstr += "\') in a variable name: "
"'" +
result.substr(openstack.back().loc) + "'";
mtype = MessageType::FATAL_ERROR;
error = true;
}
break;
}
}
// Look at the next character.
} while (!error && !done && *++in);
// Check for open variable references yet.
if (!error && !openstack.empty()) {
// There's an open variable reference waiting. Policy CMP0010 flags
// whether this is an error or not. The new parser now enforces
// CMP0010 as well.
errorstr += "There is an unterminated variable reference.";
error = true;
}
if (error) {
std::ostringstream emsg;
emsg << "Syntax error in cmake code ";
if (filename) {
// This filename and line number may be more specific than the
// command context because one command invocation can have
// arguments on multiple lines.
emsg << "at\n"
<< " " << filename << ":" << line << "\n";
}
emsg << "when parsing string\n"
<< " " << source << "\n";
emsg << errorstr;
mtype = MessageType::FATAL_ERROR;
errorstr = emsg.str();
} else {
// Append the rest of the unchanged part of the string.
result.append(last);
source = result;
}
return mtype;
}
void cmMakefile::RemoveVariablesInString(std::string& source,
bool atOnly) const
{
if (!atOnly) {
cmsys::RegularExpression var("(\\${[A-Za-z_0-9]*})");
while (var.find(source)) {
source.erase(var.start(), var.end() - var.start());
}
}
if (!atOnly) {
cmsys::RegularExpression varb("(\\$ENV{[A-Za-z_0-9]*})");
while (varb.find(source)) {
source.erase(varb.start(), varb.end() - varb.start());
}
}
cmsys::RegularExpression var2("(@[A-Za-z_0-9]*@)");
while (var2.find(source)) {
source.erase(var2.start(), var2.end() - var2.start());
}
}
std::string cmMakefile::GetConfigurations(std::vector<std::string>& configs,
bool singleConfig) const
{
if (this->GetGlobalGenerator()->IsMultiConfig()) {
if (const char* configTypes =
this->GetDefinition("CMAKE_CONFIGURATION_TYPES")) {
cmExpandList(configTypes, configs);
}
return "";
}
const std::string& buildType = this->GetSafeDefinition("CMAKE_BUILD_TYPE");
if (singleConfig && !buildType.empty()) {
configs.push_back(buildType);
}
return buildType;
}
std::vector<std::string> cmMakefile::GetGeneratorConfigs() const
{
std::vector<std::string> configs;
GetConfigurations(configs);
if (configs.empty()) {
configs.emplace_back();
}
return configs;
}
bool cmMakefile::IsFunctionBlocked(const cmListFileFunction& lff,
cmExecutionStatus& status)
{
// if there are no blockers get out of here
if (this->FunctionBlockers.empty()) {
return false;
}
return this->FunctionBlockers.top()->IsFunctionBlocked(lff, status);
}
void cmMakefile::PushFunctionBlockerBarrier()
{
this->FunctionBlockerBarriers.push_back(this->FunctionBlockers.size());
}
void cmMakefile::PopFunctionBlockerBarrier(bool reportError)
{
// Remove any extra entries pushed on the barrier.
FunctionBlockersType::size_type barrier =
this->FunctionBlockerBarriers.back();
while (this->FunctionBlockers.size() > barrier) {
std::unique_ptr<cmFunctionBlocker> fb(
std::move(this->FunctionBlockers.top()));
this->FunctionBlockers.pop();
if (reportError) {
// Report the context in which the unclosed block was opened.
cmListFileContext const& lfc = fb->GetStartingContext();
std::ostringstream e;
/* clang-format off */
e << "A logical block opening on the line\n"
<< " " << lfc << "\n"
<< "is not closed.";
/* clang-format on */
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
reportError = false;
}
}
// Remove the barrier.
this->FunctionBlockerBarriers.pop_back();
}
void cmMakefile::PushLoopBlock()
{
assert(!this->LoopBlockCounter.empty());
this->LoopBlockCounter.top()++;
}
void cmMakefile::PopLoopBlock()
{
assert(!this->LoopBlockCounter.empty());
assert(this->LoopBlockCounter.top() > 0);
this->LoopBlockCounter.top()--;
}
void cmMakefile::PushLoopBlockBarrier()
{
this->LoopBlockCounter.push(0);
}
void cmMakefile::PopLoopBlockBarrier()
{
assert(!this->LoopBlockCounter.empty());
assert(this->LoopBlockCounter.top() == 0);
this->LoopBlockCounter.pop();
}
bool cmMakefile::IsLoopBlock() const
{
assert(!this->LoopBlockCounter.empty());
return !this->LoopBlockCounter.empty() && this->LoopBlockCounter.top() > 0;
}
std::string cmMakefile::GetExecutionFilePath() const
{
assert(this->StateSnapshot.IsValid());
return this->StateSnapshot.GetExecutionListFile();
}
bool cmMakefile::ExpandArguments(std::vector<cmListFileArgument> const& inArgs,
std::vector<std::string>& outArgs,
const char* filename) const
{
std::string efp = this->GetExecutionFilePath();
if (!filename) {
filename = efp.c_str();
}
std::string value;
outArgs.reserve(inArgs.size());
for (cmListFileArgument const& i : inArgs) {
// No expansion in a bracket argument.
if (i.Delim == cmListFileArgument::Bracket) {
outArgs.push_back(i.Value);
continue;
}
// Expand the variables in the argument.
value = i.Value;
this->ExpandVariablesInString(value, false, false, false, filename, i.Line,
false, false);
// If the argument is quoted, it should be one argument.
// Otherwise, it may be a list of arguments.
if (i.Delim == cmListFileArgument::Quoted) {
outArgs.push_back(value);
} else {
cmExpandList(value, outArgs);
}
}
return !cmSystemTools::GetFatalErrorOccured();
}
bool cmMakefile::ExpandArguments(
std::vector<cmListFileArgument> const& inArgs,
std::vector<cmExpandedCommandArgument>& outArgs, const char* filename) const
{
std::string efp = this->GetExecutionFilePath();
if (!filename) {
filename = efp.c_str();
}
std::string value;
outArgs.reserve(inArgs.size());
for (cmListFileArgument const& i : inArgs) {
// No expansion in a bracket argument.
if (i.Delim == cmListFileArgument::Bracket) {
outArgs.emplace_back(i.Value, true);
continue;
}
// Expand the variables in the argument.
value = i.Value;
this->ExpandVariablesInString(value, false, false, false, filename, i.Line,
false, false);
// If the argument is quoted, it should be one argument.
// Otherwise, it may be a list of arguments.
if (i.Delim == cmListFileArgument::Quoted) {
outArgs.emplace_back(value, true);
} else {
std::vector<std::string> stringArgs = cmExpandedList(value);
for (std::string const& stringArg : stringArgs) {
outArgs.emplace_back(stringArg, false);
}
}
}
return !cmSystemTools::GetFatalErrorOccured();
}
void cmMakefile::AddFunctionBlocker(std::unique_ptr<cmFunctionBlocker> fb)
{
if (!this->ExecutionStatusStack.empty()) {
// Record the context in which the blocker is created.
fb->SetStartingContext(this->GetExecutionContext());
}
this->FunctionBlockers.push(std::move(fb));
}
std::unique_ptr<cmFunctionBlocker> cmMakefile::RemoveFunctionBlocker()
{
assert(!this->FunctionBlockers.empty());
assert(this->FunctionBlockerBarriers.empty() ||
this->FunctionBlockers.size() > this->FunctionBlockerBarriers.back());
auto b = std::move(this->FunctionBlockers.top());
this->FunctionBlockers.pop();
return b;
}
std::string const& cmMakefile::GetHomeDirectory() const
{
return this->GetCMakeInstance()->GetHomeDirectory();
}
std::string const& cmMakefile::GetHomeOutputDirectory() const
{
return this->GetCMakeInstance()->GetHomeOutputDirectory();
}
void cmMakefile::SetScriptModeFile(std::string const& scriptfile)
{
this->AddDefinition("CMAKE_SCRIPT_MODE_FILE", scriptfile);
}
void cmMakefile::SetArgcArgv(const std::vector<std::string>& args)
{
this->AddDefinition("CMAKE_ARGC", std::to_string(args.size()));
// this->MarkVariableAsUsed("CMAKE_ARGC");
for (unsigned int t = 0; t < args.size(); ++t) {
std::ostringstream tmpStream;
tmpStream << "CMAKE_ARGV" << t;
this->AddDefinition(tmpStream.str(), args[t]);
// this->MarkVariableAsUsed(tmpStream.str().c_str());
}
}
cmSourceFile* cmMakefile::GetSource(const std::string& sourceName,
cmSourceFileLocationKind kind) const
{
// First check "Known" paths (avoids the creation of cmSourceFileLocation)
if (kind == cmSourceFileLocationKind::Known) {
auto sfsi = this->KnownFileSearchIndex.find(sourceName);
if (sfsi != this->KnownFileSearchIndex.end()) {
return sfsi->second;
}
}
cmSourceFileLocation sfl(this, sourceName, kind);
auto name = this->GetCMakeInstance()->StripExtension(sfl.GetName());
#if defined(_WIN32) || defined(__APPLE__)
name = cmSystemTools::LowerCase(name);
#endif
auto sfsi = this->SourceFileSearchIndex.find(name);
if (sfsi != this->SourceFileSearchIndex.end()) {
for (auto sf : sfsi->second) {
if (sf->Matches(sfl)) {
return sf;
}
}
}
return nullptr;
}
cmSourceFile* cmMakefile::CreateSource(const std::string& sourceName,
bool generated,
cmSourceFileLocationKind kind)
{
auto sf = cm::make_unique<cmSourceFile>(this, sourceName, kind);
if (generated) {
sf->SetProperty("GENERATED", "1");
}
auto name =
this->GetCMakeInstance()->StripExtension(sf->GetLocation().GetName());
#if defined(_WIN32) || defined(__APPLE__)
name = cmSystemTools::LowerCase(name);
#endif
this->SourceFileSearchIndex[name].push_back(sf.get());
// for "Known" paths add direct lookup (used for faster lookup in GetSource)
if (kind == cmSourceFileLocationKind::Known) {
this->KnownFileSearchIndex[sourceName] = sf.get();
}
this->SourceFiles.push_back(std::move(sf));
return this->SourceFiles.back().get();
}
cmSourceFile* cmMakefile::GetOrCreateSource(const std::string& sourceName,
bool generated,
cmSourceFileLocationKind kind)
{
if (cmSourceFile* esf = this->GetSource(sourceName, kind)) {
return esf;
}
return this->CreateSource(sourceName, generated, kind);
}
cmSourceFile* cmMakefile::GetOrCreateGeneratedSource(
const std::string& sourceName)
{
cmSourceFile* sf =
this->GetOrCreateSource(sourceName, true, cmSourceFileLocationKind::Known);
sf->SetProperty("GENERATED", "1");
return sf;
}
void cmMakefile::CreateGeneratedOutputs(
const std::vector<std::string>& outputs)
{
for (std::string const& o : outputs) {
if (cmGeneratorExpression::Find(o) == std::string::npos) {
this->GetOrCreateGeneratedSource(o);
this->AddDelayedOutput(o);
} else {
this->DelayedOutputFilesHaveGenex = true;
}
}
}
void cmMakefile::CreateGeneratedByproducts(
const std::vector<std::string>& byproducts)
{
for (std::string const& o : byproducts) {
if (cmGeneratorExpression::Find(o) == std::string::npos) {
this->GetOrCreateGeneratedSource(o);
}
}
}
void cmMakefile::AddDelayedOutput(std::string const& output)
{
// Note that this vector might contain the output names in a different order
// than in source file iteration order.
this->DelayedOutputFiles.push_back(output);
SourceEntry entry;
entry.SourceMightBeOutput = true;
auto pr = this->OutputToSource.emplace(output, entry);
if (!pr.second) {
pr.first->second.SourceMightBeOutput = true;
}
}
void cmMakefile::AddTargetObject(std::string const& tgtName,
std::string const& objFile)
{
cmSourceFile* sf = this->GetOrCreateSource(objFile, true);
sf->SetObjectLibrary(tgtName);
sf->SetProperty("EXTERNAL_OBJECT", "1");
#if !defined(CMAKE_BOOTSTRAP)
this->SourceGroups[this->ObjectLibrariesSourceGroupIndex].AddGroupFile(
sf->ResolveFullPath());
#endif
}
void cmMakefile::EnableLanguage(std::vector<std::string> const& lang,
bool optional)
{
if (const char* def = this->GetGlobalGenerator()->GetCMakeCFGIntDir()) {
this->AddDefinition("CMAKE_CFG_INTDIR", def);
}
// If RC is explicitly listed we need to do it after other languages.
// On some platforms we enable RC implicitly while enabling others.
// Do not let that look like recursive enable_language(RC).
std::vector<std::string> langs;
std::vector<std::string> langsRC;
langs.reserve(lang.size());
for (std::string const& i : lang) {
if (i == "RC") {
langsRC.push_back(i);
} else {
langs.push_back(i);
}
}
if (!langs.empty()) {
this->GetGlobalGenerator()->EnableLanguage(langs, this, optional);
}
if (!langsRC.empty()) {
this->GetGlobalGenerator()->EnableLanguage(langsRC, this, optional);
}
}
int cmMakefile::TryCompile(const std::string& srcdir,
const std::string& bindir,
const std::string& projectName,
const std::string& targetName, bool fast, int jobs,
const std::vector<std::string>* cmakeArgs,
std::string& output)
{
this->IsSourceFileTryCompile = fast;
// does the binary directory exist ? If not create it...
if (!cmSystemTools::FileIsDirectory(bindir)) {
cmSystemTools::MakeDirectory(bindir);
}
// change to the tests directory and run cmake
// use the cmake object instead of calling cmake
cmWorkingDirectory workdir(bindir);
if (workdir.Failed()) {
this->IssueMessage(MessageType::FATAL_ERROR,
"Failed to set working directory to " + bindir + " : " +
std::strerror(workdir.GetLastResult()));
cmSystemTools::SetFatalErrorOccured();
this->IsSourceFileTryCompile = false;
return 1;
}
// make sure the same generator is used
// use this program as the cmake to be run, it should not
// be run that way but the cmake object requires a vailid path
cmake cm(cmake::RoleProject, cmState::Project);
cm.SetIsInTryCompile(true);
auto gg = cm.CreateGlobalGenerator(this->GetGlobalGenerator()->GetName());
if (!gg) {
this->IssueMessage(MessageType::INTERNAL_ERROR,
"Global generator '" +
this->GetGlobalGenerator()->GetName() +
"' could not be created.");
cmSystemTools::SetFatalErrorOccured();
this->IsSourceFileTryCompile = false;
return 1;
}
gg->RecursionDepth = this->RecursionDepth;
cm.SetGlobalGenerator(std::move(gg));
// do a configure
cm.SetHomeDirectory(srcdir);
cm.SetHomeOutputDirectory(bindir);
cm.SetGeneratorInstance(this->GetSafeDefinition("CMAKE_GENERATOR_INSTANCE"));
cm.SetGeneratorPlatform(this->GetSafeDefinition("CMAKE_GENERATOR_PLATFORM"));
cm.SetGeneratorToolset(this->GetSafeDefinition("CMAKE_GENERATOR_TOOLSET"));
cm.LoadCache();
if (!cm.GetGlobalGenerator()->IsMultiConfig()) {
if (const char* config =
this->GetDefinition("CMAKE_TRY_COMPILE_CONFIGURATION")) {
// Tell the single-configuration generator which one to use.
// Add this before the user-provided CMake arguments in case
// one of the arguments is -DCMAKE_BUILD_TYPE=...
cm.AddCacheEntry("CMAKE_BUILD_TYPE", config, "Build configuration",
cmStateEnums::STRING);
}
}
const char* recursionDepth =
this->GetDefinition("CMAKE_MAXIMUM_RECURSION_DEPTH");
if (recursionDepth) {
cm.AddCacheEntry("CMAKE_MAXIMUM_RECURSION_DEPTH", recursionDepth,
"Maximum recursion depth", cmStateEnums::STRING);
}
// if cmake args were provided then pass them in
if (cmakeArgs) {
// FIXME: Workaround to ignore unused CLI variables in try-compile.
//
// Ideally we should use SetArgs to honor options like --warn-unused-vars.
// However, there is a subtle problem when certain arguments are passed to
// a macro wrapping around try_compile or try_run that does not escape
// semicolons in its parameters but just passes ${ARGV} or ${ARGN}. In
// this case a list argument like "-DVAR=a;b" gets split into multiple
// cmake arguments "-DVAR=a" and "b". Currently SetCacheArgs ignores
// argument "b" and uses just "-DVAR=a", leading to a subtle bug in that
// the try_compile or try_run does not get the proper value of VAR. If we
// call SetArgs here then it would treat "b" as the source directory and
// cause an error such as "The source directory .../CMakeFiles/CMakeTmp/b
// does not exist", thus breaking the try_compile or try_run completely.
//
// Strictly speaking the bug is in the wrapper macro because the CMake
// language has always flattened nested lists and the macro should escape
// the semicolons in its arguments before forwarding them. However, this
// bug is so subtle that projects typically work anyway, usually because
// the value VAR=a is sufficient for the try_compile or try_run to get the
// correct result. Calling SetArgs here would break such projects that
// previously built. Instead we work around the issue by never reporting
// unused arguments and ignoring options such as --warn-unused-vars.
cm.SetWarnUnusedCli(false);
// cm.SetArgs(*cmakeArgs, true);
cm.SetCacheArgs(*cmakeArgs);
}
// to save time we pass the EnableLanguage info directly
cm.GetGlobalGenerator()->EnableLanguagesFromGenerator(
this->GetGlobalGenerator(), this);
if (this->IsOn("CMAKE_SUPPRESS_DEVELOPER_WARNINGS")) {
cm.AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "TRUE", "",
cmStateEnums::INTERNAL);
} else {
cm.AddCacheEntry("CMAKE_SUPPRESS_DEVELOPER_WARNINGS", "FALSE", "",
cmStateEnums::INTERNAL);
}
if (cm.Configure() != 0) {
this->IssueMessage(MessageType::FATAL_ERROR,
"Failed to configure test project build system.");
cmSystemTools::SetFatalErrorOccured();
this->IsSourceFileTryCompile = false;
return 1;
}
if (cm.Generate() != 0) {
this->IssueMessage(MessageType::FATAL_ERROR,
"Failed to generate test project build system.");
cmSystemTools::SetFatalErrorOccured();
this->IsSourceFileTryCompile = false;
return 1;
}
// finally call the generator to actually build the resulting project
int ret = this->GetGlobalGenerator()->TryCompile(
jobs, srcdir, bindir, projectName, targetName, fast, output, this);
this->IsSourceFileTryCompile = false;
return ret;
}
bool cmMakefile::GetIsSourceFileTryCompile() const
{
return this->IsSourceFileTryCompile;
}
cmake* cmMakefile::GetCMakeInstance() const
{
return this->GlobalGenerator->GetCMakeInstance();
}
cmMessenger* cmMakefile::GetMessenger() const
{
return this->GetCMakeInstance()->GetMessenger();
}
cmGlobalGenerator* cmMakefile::GetGlobalGenerator() const
{
return this->GlobalGenerator;
}
#ifndef CMAKE_BOOTSTRAP
cmVariableWatch* cmMakefile::GetVariableWatch() const
{
if (this->GetCMakeInstance() &&
this->GetCMakeInstance()->GetVariableWatch()) {
return this->GetCMakeInstance()->GetVariableWatch();
}
return nullptr;
}
#endif
cmState* cmMakefile::GetState() const
{
return this->GetCMakeInstance()->GetState();
}
void cmMakefile::DisplayStatus(const std::string& message, float s) const
{
cmake* cm = this->GetCMakeInstance();
if (cm->GetWorkingMode() == cmake::FIND_PACKAGE_MODE) {
// don't output any STATUS message in FIND_PACKAGE_MODE, since they will
// directly be fed to the compiler, which will be confused.
return;
}
cm->UpdateProgress(message, s);
}
std::string cmMakefile::GetModulesFile(const std::string& filename,
bool& system, bool debug,
std::string& debugBuffer) const
{
std::string result;
// We search the module always in CMAKE_ROOT and in CMAKE_MODULE_PATH,
// and then decide based on the policy setting which one to return.
// See CMP0017 for more details.
// The specific problem was that KDE 4.5.0 installs a
// FindPackageHandleStandardArgs.cmake which doesn't have the new features
// of FPHSA.cmake introduced in CMake 2.8.3 yet, and by setting
// CMAKE_MODULE_PATH also e.g. FindZLIB.cmake from cmake included
// FPHSA.cmake from kdelibs and not from CMake, and tried to use the
// new features, which were not there in the version from kdelibs, and so
// failed ("
std::string moduleInCMakeRoot;
std::string moduleInCMakeModulePath;
// Always search in CMAKE_MODULE_PATH:
const char* cmakeModulePath = this->GetDefinition("CMAKE_MODULE_PATH");
if (cmakeModulePath) {
std::vector<std::string> modulePath = cmExpandedList(cmakeModulePath);
// Look through the possible module directories.
for (std::string itempl : modulePath) {
cmSystemTools::ConvertToUnixSlashes(itempl);
itempl += "/";
itempl += filename;
if (cmSystemTools::FileExists(itempl)) {
moduleInCMakeModulePath = itempl;
break;
}
if (debug) {
debugBuffer = cmStrCat(debugBuffer, " ", itempl, "\n");
}
}
}
// Always search in the standard modules location.
moduleInCMakeRoot =
cmStrCat(cmSystemTools::GetCMakeRoot(), "/Modules/", filename);
cmSystemTools::ConvertToUnixSlashes(moduleInCMakeRoot);
if (!cmSystemTools::FileExists(moduleInCMakeRoot)) {
if (debug) {
debugBuffer = cmStrCat(debugBuffer, " ", moduleInCMakeRoot, "\n");
}
moduleInCMakeRoot.clear();
}
// Normally, prefer the files found in CMAKE_MODULE_PATH. Only when the file
// from which we are being called is located itself in CMAKE_ROOT, then
// prefer results from CMAKE_ROOT depending on the policy setting.
system = false;
result = moduleInCMakeModulePath;
if (result.empty()) {
system = true;
result = moduleInCMakeRoot;
}
if (!moduleInCMakeModulePath.empty() && !moduleInCMakeRoot.empty()) {
const char* currentFile = this->GetDefinition("CMAKE_CURRENT_LIST_FILE");
std::string mods = cmSystemTools::GetCMakeRoot() + "/Modules/";
if (currentFile && cmSystemTools::IsSubDirectory(currentFile, mods)) {
switch (this->GetPolicyStatus(cmPolicies::CMP0017)) {
case cmPolicies::WARN: {
std::ostringstream e;
/* clang-format off */
e << "File " << currentFile << " includes "
<< moduleInCMakeModulePath
<< " (found via CMAKE_MODULE_PATH) which shadows "
<< moduleInCMakeRoot << ". This may cause errors later on .\n"
<< cmPolicies::GetPolicyWarning(cmPolicies::CMP0017);
/* clang-format on */
this->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
CM_FALLTHROUGH;
}
case cmPolicies::OLD:
system = false;
result = moduleInCMakeModulePath;
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
system = true;
result = moduleInCMakeRoot;
break;
}
}
}
return result;
}
void cmMakefile::ConfigureString(const std::string& input, std::string& output,
bool atOnly, bool escapeQuotes) const
{
// Split input to handle one line at a time.
std::string::const_iterator lineStart = input.begin();
while (lineStart != input.end()) {
// Find the end of this line.
std::string::const_iterator lineEnd = lineStart;
while (lineEnd != input.end() && *lineEnd != '\n') {
++lineEnd;
}
// Copy the line.
std::string line(lineStart, lineEnd);
// Skip the newline character.
bool haveNewline = (lineEnd != input.end());
if (haveNewline) {
++lineEnd;
}
// Replace #cmakedefine instances.
if (this->cmDefineRegex.find(line)) {
const char* def = this->GetDefinition(this->cmDefineRegex.match(2));
if (!cmIsOff(def)) {
const std::string indentation = this->cmDefineRegex.match(1);
cmSystemTools::ReplaceString(line, "#" + indentation + "cmakedefine",
"#" + indentation + "define");
output += line;
} else {
output += "/* #undef ";
output += this->cmDefineRegex.match(2);
output += " */";
}
} else if (this->cmDefine01Regex.find(line)) {
const std::string indentation = this->cmDefine01Regex.match(1);
const char* def = this->GetDefinition(this->cmDefine01Regex.match(2));
cmSystemTools::ReplaceString(line, "#" + indentation + "cmakedefine01",
"#" + indentation + "define");
output += line;
if (!cmIsOff(def)) {
output += " 1";
} else {
output += " 0";
}
} else {
output += line;
}
if (haveNewline) {
output += "\n";
}
// Move to the next line.
lineStart = lineEnd;
}
// Perform variable replacements.
const char* filename = nullptr;
long lineNumber = -1;
if (!this->Backtrace.Empty()) {
const auto& currentTrace = this->Backtrace.Top();
filename = currentTrace.FilePath.c_str();
lineNumber = currentTrace.Line;
}
this->ExpandVariablesInString(output, escapeQuotes, true, atOnly, filename,
lineNumber, true, true);
}
int cmMakefile::ConfigureFile(const std::string& infile,
const std::string& outfile, bool copyonly,
bool atOnly, bool escapeQuotes,
cmNewLineStyle newLine)
{
int res = 1;
if (!this->CanIWriteThisFile(outfile)) {
cmSystemTools::Error("Attempt to write file: " + outfile +
" into a source directory.");
return 0;
}
if (!cmSystemTools::FileExists(infile)) {
cmSystemTools::Error("File " + infile + " does not exist.");
return 0;
}
std::string soutfile = outfile;
const std::string& sinfile = infile;
this->AddCMakeDependFile(sinfile);
cmSystemTools::ConvertToUnixSlashes(soutfile);
// Re-generate if non-temporary outputs are missing.
// when we finalize the configuration we will remove all
// output files that now don't exist.
this->AddCMakeOutputFile(soutfile);
mode_t perm = 0;
cmSystemTools::GetPermissions(sinfile, perm);
std::string::size_type pos = soutfile.rfind('/');
if (pos != std::string::npos) {
std::string path = soutfile.substr(0, pos);
cmSystemTools::MakeDirectory(path);
}
if (copyonly) {
if (!cmSystemTools::CopyFileIfDifferent(sinfile, soutfile)) {
return 0;
}
} else {
std::string newLineCharacters;
std::ios::openmode omode = std::ios::out | std::ios::trunc;
if (newLine.IsValid()) {
newLineCharacters = newLine.GetCharacters();
omode |= std::ios::binary;
} else {
newLineCharacters = "\n";
}
std::string tempOutputFile = cmStrCat(soutfile, ".tmp");
cmsys::ofstream fout(tempOutputFile.c_str(), omode);
if (!fout) {
cmSystemTools::Error("Could not open file for write in copy operation " +
tempOutputFile);
cmSystemTools::ReportLastSystemError("");
return 0;
}
cmsys::ifstream fin(sinfile.c_str());
if (!fin) {
cmSystemTools::Error("Could not open file for read in copy operation " +
sinfile);
return 0;
}
cmsys::FStream::BOM bom = cmsys::FStream::ReadBOM(fin);
if (bom != cmsys::FStream::BOM_None && bom != cmsys::FStream::BOM_UTF8) {
std::ostringstream e;
e << "File starts with a Byte-Order-Mark that is not UTF-8:\n "
<< sinfile;
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
return 0;
}
// rewind to copy BOM to output file
fin.seekg(0);
// now copy input to output and expand variables in the
// input file at the same time
std::string inLine;
std::string outLine;
while (cmSystemTools::GetLineFromStream(fin, inLine)) {
outLine.clear();
this->ConfigureString(inLine, outLine, atOnly, escapeQuotes);
fout << outLine << newLineCharacters;
}
// close the files before attempting to copy
fin.close();
fout.close();
if (!cmSystemTools::CopyFileIfDifferent(tempOutputFile, soutfile)) {
res = 0;
} else {
cmSystemTools::SetPermissions(soutfile, perm);
}
cmSystemTools::RemoveFile(tempOutputFile);
}
return res;
}
void cmMakefile::SetProperty(const std::string& prop, const char* value)
{
this->StateSnapshot.GetDirectory().SetProperty(prop, value, this->Backtrace);
}
void cmMakefile::AppendProperty(const std::string& prop, const char* value,
bool asString)
{
this->StateSnapshot.GetDirectory().AppendProperty(prop, value, asString,
this->Backtrace);
}
const char* cmMakefile::GetProperty(const std::string& prop) const
{
// Check for computed properties.
static std::string output;
if (prop == "TESTS") {
std::vector<std::string> keys;
// get list of keys
std::transform(this->Tests.begin(), this->Tests.end(),
std::back_inserter(keys),
[](decltype(this->Tests)::value_type const& pair) {
return pair.first;
});
output = cmJoin(keys, ";");
return output.c_str();
}
return this->StateSnapshot.GetDirectory().GetProperty(prop);
}
const char* cmMakefile::GetProperty(const std::string& prop, bool chain) const
{
return this->StateSnapshot.GetDirectory().GetProperty(prop, chain);
}
bool cmMakefile::GetPropertyAsBool(const std::string& prop) const
{
return cmIsOn(this->GetProperty(prop));
}
std::vector<std::string> cmMakefile::GetPropertyKeys() const
{
return this->StateSnapshot.GetDirectory().GetPropertyKeys();
}
cmTarget* cmMakefile::FindLocalNonAliasTarget(const std::string& name) const
{
auto i = this->Targets.find(name);
if (i != this->Targets.end()) {
return &i->second;
}
return nullptr;
}
cmTest* cmMakefile::CreateTest(const std::string& testName)
{
cmTest* test = this->GetTest(testName);
if (test) {
return test;
}
auto newTest = cm::make_unique<cmTest>(this);
test = newTest.get();
newTest->SetName(testName);
this->Tests[testName] = std::move(newTest);
return test;
}
cmTest* cmMakefile::GetTest(const std::string& testName) const
{
auto mi = this->Tests.find(testName);
if (mi != this->Tests.end()) {
return mi->second.get();
}
return nullptr;
}
void cmMakefile::GetTests(const std::string& config,
std::vector<cmTest*>& tests)
{
for (const auto& generator : this->GetTestGenerators()) {
if (generator->TestsForConfig(config)) {
tests.push_back(generator->GetTest());
}
}
}
void cmMakefile::AddCMakeDependFilesFromUser()
{
std::vector<std::string> deps;
if (const char* deps_str = this->GetProperty("CMAKE_CONFIGURE_DEPENDS")) {
cmExpandList(deps_str, deps);
}
for (std::string const& dep : deps) {
if (cmSystemTools::FileIsFullPath(dep)) {
this->AddCMakeDependFile(dep);
} else {
std::string f = cmStrCat(this->GetCurrentSourceDirectory(), '/', dep);
this->AddCMakeDependFile(f);
}
}
}
std::string cmMakefile::FormatListFileStack() const
{
std::vector<std::string> listFiles;
cmStateSnapshot snp = this->StateSnapshot;
while (snp.IsValid()) {
listFiles.push_back(snp.GetExecutionListFile());
snp = snp.GetCallStackParent();
}
std::reverse(listFiles.begin(), listFiles.end());
std::ostringstream tmp;
size_t depth = listFiles.size();
if (depth > 0) {
auto it = listFiles.end();
do {
if (depth != listFiles.size()) {
tmp << "\n ";
}
--it;
tmp << "[";
tmp << depth;
tmp << "]\t";
tmp << *it;
depth--;
} while (it != listFiles.begin());
}
return tmp.str();
}
void cmMakefile::PushScope()
{
this->StateSnapshot =
this->GetState()->CreateVariableScopeSnapshot(this->StateSnapshot);
this->PushLoopBlockBarrier();
#if !defined(CMAKE_BOOTSTRAP)
this->GetGlobalGenerator()->GetFileLockPool().PushFunctionScope();
#endif
}
void cmMakefile::PopScope()
{
#if !defined(CMAKE_BOOTSTRAP)
this->GetGlobalGenerator()->GetFileLockPool().PopFunctionScope();
#endif
this->PopLoopBlockBarrier();
this->CheckForUnusedVariables();
this->PopSnapshot();
}
void cmMakefile::RaiseScope(const std::string& var, const char* varDef)
{
if (var.empty()) {
return;
}
if (!this->StateSnapshot.RaiseScope(var, varDef)) {
std::ostringstream m;
m << "Cannot set \"" << var << "\": current scope has no parent.";
this->IssueMessage(MessageType::AUTHOR_WARNING, m.str());
return;
}
#ifndef CMAKE_BOOTSTRAP
cmVariableWatch* vv = this->GetVariableWatch();
if (vv) {
vv->VariableAccessed(var, cmVariableWatch::VARIABLE_MODIFIED_ACCESS,
varDef, this);
}
#endif
}
cmTarget* cmMakefile::AddImportedTarget(const std::string& name,
cmStateEnums::TargetType type,
bool global)
{
// Create the target.
std::unique_ptr<cmTarget> target(
new cmTarget(name, type,
global ? cmTarget::VisibilityImportedGlobally
: cmTarget::VisibilityImported,
this, true));
// Add to the set of available imported targets.
this->ImportedTargets[name] = target.get();
this->GetGlobalGenerator()->IndexTarget(target.get());
// Transfer ownership to this cmMakefile object.
this->ImportedTargetsOwned.push_back(std::move(target));
return this->ImportedTargetsOwned.back().get();
}
cmTarget* cmMakefile::FindTargetToUse(const std::string& name,
bool excludeAliases) const
{
// Look for an imported target. These take priority because they
// are more local in scope and do not have to be globally unique.
auto imported = this->ImportedTargets.find(name);
if (imported != this->ImportedTargets.end()) {
return imported->second;
}
// Look for a target built in this directory.
if (cmTarget* t = this->FindLocalNonAliasTarget(name)) {
return t;
}
// Look for a target built in this project.
return this->GetGlobalGenerator()->FindTarget(name, excludeAliases);
}
bool cmMakefile::IsAlias(const std::string& name) const
{
if (cmContains(this->AliasTargets, name)) {
return true;
}
return this->GetGlobalGenerator()->IsAlias(name);
}
bool cmMakefile::EnforceUniqueName(std::string const& name, std::string& msg,
bool isCustom) const
{
if (this->IsAlias(name)) {
std::ostringstream e;
e << "cannot create target \"" << name
<< "\" because an alias with the same name already exists.";
msg = e.str();
return false;
}
if (cmTarget* existing = this->FindTargetToUse(name)) {
// The name given conflicts with an existing target. Produce an
// error in a compatible way.
if (existing->IsImported()) {
// Imported targets were not supported in previous versions.
// This is new code, so we can make it an error.
std::ostringstream e;
e << "cannot create target \"" << name
<< "\" because an imported target with the same name already exists.";
msg = e.str();
return false;
}
// target names must be globally unique
switch (this->GetPolicyStatus(cmPolicies::CMP0002)) {
case cmPolicies::WARN:
this->IssueMessage(MessageType::AUTHOR_WARNING,
cmPolicies::GetPolicyWarning(cmPolicies::CMP0002));
CM_FALLTHROUGH;
case cmPolicies::OLD:
return true;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
this->IssueMessage(
MessageType::FATAL_ERROR,
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0002));
return true;
case cmPolicies::NEW:
break;
}
// The conflict is with a non-imported target.
// Allow this if the user has requested support.
cmake* cm = this->GetCMakeInstance();
if (isCustom && existing->GetType() == cmStateEnums::UTILITY &&
this != existing->GetMakefile() &&
cm->GetState()->GetGlobalPropertyAsBool(
"ALLOW_DUPLICATE_CUSTOM_TARGETS")) {
return true;
}
// Produce an error that tells the user how to work around the
// problem.
std::ostringstream e;
e << "cannot create target \"" << name
<< "\" because another target with the same name already exists. "
<< "The existing target is ";
switch (existing->GetType()) {
case cmStateEnums::EXECUTABLE:
e << "an executable ";
break;
case cmStateEnums::STATIC_LIBRARY:
e << "a static library ";
break;
case cmStateEnums::SHARED_LIBRARY:
e << "a shared library ";
break;
case cmStateEnums::MODULE_LIBRARY:
e << "a module library ";
break;
case cmStateEnums::UTILITY:
e << "a custom target ";
break;
case cmStateEnums::INTERFACE_LIBRARY:
e << "an interface library ";
break;
default:
break;
}
e << "created in source directory \""
<< existing->GetMakefile()->GetCurrentSourceDirectory() << "\". "
<< "See documentation for policy CMP0002 for more details.";
msg = e.str();
return false;
}
return true;
}
bool cmMakefile::EnforceUniqueDir(const std::string& srcPath,
const std::string& binPath) const
{
// Make sure the binary directory is unique.
cmGlobalGenerator* gg = this->GetGlobalGenerator();
if (gg->BinaryDirectoryIsNew(binPath)) {
return true;
}
std::ostringstream e;
switch (this->GetPolicyStatus(cmPolicies::CMP0013)) {
case cmPolicies::WARN:
// Print the warning.
/* clang-format off */
e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0013)
<< "\n"
<< "The binary directory\n"
<< " " << binPath << "\n"
<< "is already used to build a source directory. "
<< "This command uses it to build source directory\n"
<< " " << srcPath << "\n"
<< "which can generate conflicting build files. "
<< "CMake does not support this use case but it used "
<< "to work accidentally and is being allowed for "
<< "compatibility.";
/* clang-format on */
this->IssueMessage(MessageType::AUTHOR_WARNING, e.str());
CM_FALLTHROUGH;
case cmPolicies::OLD:
// OLD behavior does not warn.
return true;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
e << cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0013) << "\n";
CM_FALLTHROUGH;
case cmPolicies::NEW:
// NEW behavior prints the error.
/* clang-format off */
e << "The binary directory\n"
<< " " << binPath << "\n"
<< "is already used to build a source directory. "
<< "It cannot be used to build source directory\n"
<< " " << srcPath << "\n"
<< "Specify a unique binary directory name.";
/* clang-format on */
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
break;
}
return false;
}
static std::string const matchVariables[] = {
"CMAKE_MATCH_0", "CMAKE_MATCH_1", "CMAKE_MATCH_2", "CMAKE_MATCH_3",
"CMAKE_MATCH_4", "CMAKE_MATCH_5", "CMAKE_MATCH_6", "CMAKE_MATCH_7",
"CMAKE_MATCH_8", "CMAKE_MATCH_9"
};
static std::string const nMatchesVariable = "CMAKE_MATCH_COUNT";
void cmMakefile::ClearMatches()
{
const char* nMatchesStr = this->GetDefinition(nMatchesVariable);
if (!nMatchesStr) {
return;
}
int nMatches = atoi(nMatchesStr);
for (int i = 0; i <= nMatches; i++) {
std::string const& var = matchVariables[i];
std::string const& s = this->GetSafeDefinition(var);
if (!s.empty()) {
this->AddDefinition(var, "");
this->MarkVariableAsUsed(var);
}
}
this->AddDefinition(nMatchesVariable, "0");
this->MarkVariableAsUsed(nMatchesVariable);
}
void cmMakefile::StoreMatches(cmsys::RegularExpression& re)
{
char highest = 0;
for (int i = 0; i < 10; i++) {
std::string const& m = re.match(i);
if (!m.empty()) {
std::string const& var = matchVariables[i];
this->AddDefinition(var, m);
this->MarkVariableAsUsed(var);
highest = static_cast<char>('0' + i);
}
}
char nMatches[] = { highest, '\0' };
this->AddDefinition(nMatchesVariable, nMatches);
this->MarkVariableAsUsed(nMatchesVariable);
}
cmStateSnapshot cmMakefile::GetStateSnapshot() const
{
return this->StateSnapshot;
}
const char* cmMakefile::GetDefineFlagsCMP0059() const
{
return this->DefineFlagsOrig.c_str();
}
cmPolicies::PolicyStatus cmMakefile::GetPolicyStatus(cmPolicies::PolicyID id,
bool parent_scope) const
{
return this->StateSnapshot.GetPolicy(id, parent_scope);
}
bool cmMakefile::PolicyOptionalWarningEnabled(std::string const& var)
{
// Check for an explicit CMAKE_POLICY_WARNING_CMP<NNNN> setting.
if (const char* val = this->GetDefinition(var)) {
return cmIsOn(val);
}
// Enable optional policy warnings with --debug-output, --trace,
// or --trace-expand.
cmake* cm = this->GetCMakeInstance();
return cm->GetDebugOutput() || cm->GetTrace();
}
bool cmMakefile::SetPolicy(const char* id, cmPolicies::PolicyStatus status)
{
cmPolicies::PolicyID pid;
if (!cmPolicies::GetPolicyID(id, /* out */ pid)) {
std::ostringstream e;
e << "Policy \"" << id << "\" is not known to this version of CMake.";
this->IssueMessage(MessageType::FATAL_ERROR, e.str());
return false;
}
return this->SetPolicy(pid, status);
}
bool cmMakefile::SetPolicy(cmPolicies::PolicyID id,
cmPolicies::PolicyStatus status)
{
// A REQUIRED_ALWAYS policy may be set only to NEW.
if (status != cmPolicies::NEW &&
cmPolicies::GetPolicyStatus(id) == cmPolicies::REQUIRED_ALWAYS) {
std::string msg = cmPolicies::GetRequiredAlwaysPolicyError(id);
this->IssueMessage(MessageType::FATAL_ERROR, msg);
return false;
}
// Deprecate old policies, especially those that require a lot
// of code to maintain the old behavior.
if (status == cmPolicies::OLD && id <= cmPolicies::CMP0069 &&
!(this->GetCMakeInstance()->GetIsInTryCompile() &&
(
// Policies set by cmCoreTryCompile::TryCompileCode.
id == cmPolicies::CMP0065))) {
this->IssueMessage(MessageType::DEPRECATION_WARNING,
cmPolicies::GetPolicyDeprecatedWarning(id));
}
this->StateSnapshot.SetPolicy(id, status);
return true;
}
cmMakefile::PolicyPushPop::PolicyPushPop(cmMakefile* m)
: Makefile(m)
{
this->Makefile->PushPolicy();
}
cmMakefile::PolicyPushPop::~PolicyPushPop()
{
this->Makefile->PopPolicy();
}
void cmMakefile::PushPolicy(bool weak, cmPolicies::PolicyMap const& pm)
{
this->StateSnapshot.PushPolicy(pm, weak);
}
void cmMakefile::PopPolicy()
{
if (!this->StateSnapshot.PopPolicy()) {
this->IssueMessage(MessageType::FATAL_ERROR,
"cmake_policy POP without matching PUSH");
}
}
void cmMakefile::PopSnapshot(bool reportError)
{
// cmStateSnapshot manages nested policy scopes within it.
// Since the scope corresponding to the snapshot is closing,
// reject any still-open nested policy scopes with an error.
while (!this->StateSnapshot.CanPopPolicyScope()) {
if (reportError) {
this->IssueMessage(MessageType::FATAL_ERROR,
"cmake_policy PUSH without matching POP");
reportError = false;
}
this->PopPolicy();
}
this->StateSnapshot = this->GetState()->Pop(this->StateSnapshot);
assert(this->StateSnapshot.IsValid());
}
bool cmMakefile::SetPolicyVersion(std::string const& version_min,
std::string const& version_max)
{
return cmPolicies::ApplyPolicyVersion(this, version_min, version_max);
}
bool cmMakefile::HasCMP0054AlreadyBeenReported(
cmListFileContext const& context) const
{
return !this->CMP0054ReportedIds.insert(context).second;
}
void cmMakefile::RecordPolicies(cmPolicies::PolicyMap& pm)
{
/* Record the setting of every policy. */
using PolicyID = cmPolicies::PolicyID;
for (PolicyID pid = cmPolicies::CMP0000; pid != cmPolicies::CMPCOUNT;
pid = PolicyID(pid + 1)) {
pm.Set(pid, this->GetPolicyStatus(pid));
}
}
bool cmMakefile::IgnoreErrorsCMP0061() const
{
bool ignoreErrors = true;
switch (this->GetPolicyStatus(cmPolicies::CMP0061)) {
case cmPolicies::WARN:
// No warning for this policy!
case cmPolicies::OLD:
break;
case cmPolicies::REQUIRED_IF_USED:
case cmPolicies::REQUIRED_ALWAYS:
case cmPolicies::NEW:
ignoreErrors = false;
break;
}
return ignoreErrors;
}
#define FEATURE_STRING(F) , #F
static const char* const C_FEATURES[] = { nullptr FOR_EACH_C_FEATURE(
FEATURE_STRING) };
static const char* const CXX_FEATURES[] = { nullptr FOR_EACH_CXX_FEATURE(
FEATURE_STRING) };
static const char* const CUDA_FEATURES[] = { nullptr FOR_EACH_CUDA_FEATURE(
FEATURE_STRING) };
#undef FEATURE_STRING
static const char* const C_STANDARDS[] = { "90", "99", "11" };
static const char* const CXX_STANDARDS[] = { "98", "11", "14", "17", "20" };
static const char* const CUDA_STANDARDS[] = { "03", "11", "14", "17", "20" };
bool cmMakefile::AddRequiredTargetFeature(cmTarget* target,
const std::string& feature,
std::string* error) const
{
if (cmGeneratorExpression::Find(feature) != std::string::npos) {
target->AppendProperty("COMPILE_FEATURES", feature);
return true;
}
std::string lang;
if (!this->CompileFeatureKnown(target, feature, lang, error)) {
return false;
}
const char* features = this->CompileFeaturesAvailable(lang, error);
if (!features) {
return false;
}
std::vector<std::string> availableFeatures = cmExpandedList(features);
if (!cmContains(availableFeatures, feature)) {
std::ostringstream e;
e << "The compiler feature \"" << feature << "\" is not known to " << lang
<< " compiler\n\""
<< this->GetDefinition("CMAKE_" + lang + "_COMPILER_ID")
<< "\"\nversion "
<< this->GetDefinition("CMAKE_" + lang + "_COMPILER_VERSION") << ".";
if (error) {
*error = e.str();
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
this->Backtrace);
}
return false;
}
target->AppendProperty("COMPILE_FEATURES", feature);
if (lang == "C" || lang == "OBJC") {
return this->AddRequiredTargetCFeature(target, feature, lang, error);
}
if (lang == "CUDA") {
return this->AddRequiredTargetCudaFeature(target, feature, lang, error);
}
return this->AddRequiredTargetCxxFeature(target, feature, lang, error);
}
bool cmMakefile::CompileFeatureKnown(cmTarget const* target,
const std::string& feature,
std::string& lang,
std::string* error) const
{
assert(cmGeneratorExpression::Find(feature) == std::string::npos);
bool isCFeature =
std::find_if(cm::cbegin(C_FEATURES) + 1, cm::cend(C_FEATURES),
cmStrCmp(feature)) != cm::cend(C_FEATURES);
if (isCFeature) {
lang = "C";
return true;
}
bool isCxxFeature =
std::find_if(cm::cbegin(CXX_FEATURES) + 1, cm::cend(CXX_FEATURES),
cmStrCmp(feature)) != cm::cend(CXX_FEATURES);
if (isCxxFeature) {
lang = "CXX";
return true;
}
bool isCudaFeature =
std::find_if(cm::cbegin(CUDA_FEATURES) + 1, cm::cend(CUDA_FEATURES),
cmStrCmp(feature)) != cm::cend(CUDA_FEATURES);
if (isCudaFeature) {
lang = "CUDA";
return true;
}
std::ostringstream e;
if (error) {
e << "specified";
} else {
e << "Specified";
}
e << " unknown feature \"" << feature
<< "\" for "
"target \""
<< target->GetName() << "\".";
if (error) {
*error = e.str();
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
this->Backtrace);
}
return false;
}
const char* cmMakefile::CompileFeaturesAvailable(const std::string& lang,
std::string* error) const
{
if (!this->GlobalGenerator->GetLanguageEnabled(lang)) {
std::ostringstream e;
if (error) {
e << "cannot";
} else {
e << "Cannot";
}
e << " use features from non-enabled language " << lang;
if (error) {
*error = e.str();
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
this->Backtrace);
}
return nullptr;
}
const char* featuresKnown =
this->GetDefinition("CMAKE_" + lang + "_COMPILE_FEATURES");
if (!featuresKnown || !*featuresKnown) {
std::ostringstream e;
if (error) {
e << "no";
} else {
e << "No";
}
e << " known features for " << lang << " compiler\n\""
<< this->GetSafeDefinition("CMAKE_" + lang + "_COMPILER_ID")
<< "\"\nversion "
<< this->GetSafeDefinition("CMAKE_" + lang + "_COMPILER_VERSION") << ".";
if (error) {
*error = e.str();
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e.str(),
this->Backtrace);
}
return nullptr;
}
return featuresKnown;
}
bool cmMakefile::HaveStandardAvailable(cmTarget const* target,
std::string const& lang,
const std::string& feature) const
{
if (lang == "C" || lang == "OBJC") {
return this->HaveCStandardAvailable(target, feature, lang);
}
if (lang == "CUDA") {
return this->HaveCudaStandardAvailable(target, feature, lang);
}
return this->HaveCxxStandardAvailable(target, feature, lang);
}
bool cmMakefile::HaveCStandardAvailable(cmTarget const* target,
const std::string& feature,
std::string const& lang) const
{
const char* defaultCStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (!defaultCStandard) {
this->IssueMessage(
MessageType::INTERNAL_ERROR,
cmStrCat("CMAKE_", lang,
"_STANDARD_DEFAULT is not set. COMPILE_FEATURES support "
"not fully configured for this compiler."));
// Return true so the caller does not try to lookup the default standard.
return true;
}
if (std::find_if(cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS),
cmStrCmp(defaultCStandard)) == cm::cend(C_STANDARDS)) {
const std::string e = cmStrCat("The CMAKE_", lang,
"_STANDARD_DEFAULT variable contains an "
"invalid value: \"",
defaultCStandard, "\".");
this->IssueMessage(MessageType::INTERNAL_ERROR, e);
return false;
}
bool needC90 = false;
bool needC99 = false;
bool needC11 = false;
this->CheckNeededCLanguage(feature, lang, needC90, needC99, needC11);
const char* existingCStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (!existingCStandard) {
existingCStandard = defaultCStandard;
}
if (std::find_if(cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS),
cmStrCmp(existingCStandard)) == cm::cend(C_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCStandard, "\".");
this->IssueMessage(MessageType::FATAL_ERROR, e);
return false;
}
const char* const* existingCIt = existingCStandard
? std::find_if(cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS),
cmStrCmp(existingCStandard))
: cm::cend(C_STANDARDS);
if (needC11 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS), cmStrCmp("11"))) {
return false;
}
if (needC99 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS), cmStrCmp("99"))) {
return false;
}
if (needC90 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS), cmStrCmp("90"))) {
return false;
}
return true;
}
bool cmMakefile::IsLaterStandard(std::string const& lang,
std::string const& lhs,
std::string const& rhs)
{
if (lang == "C" || lang == "OBJC") {
const char* const* rhsIt = std::find_if(
cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS), cmStrCmp(rhs));
return std::find_if(rhsIt, cm::cend(C_STANDARDS), cmStrCmp(lhs)) !=
cm::cend(C_STANDARDS);
}
if (lang == "CUDA") {
const char* const* rhsIt = std::find_if(
cm::cbegin(CUDA_STANDARDS), cm::cend(CUDA_STANDARDS), cmStrCmp(rhs));
return std::find_if(rhsIt, cm::cend(CUDA_STANDARDS), cmStrCmp(lhs)) !=
cm::cend(CUDA_STANDARDS);
}
const char* const* rhsIt = std::find_if(
cm::cbegin(CXX_STANDARDS), cm::cend(CXX_STANDARDS), cmStrCmp(rhs));
return std::find_if(rhsIt, cm::cend(CXX_STANDARDS), cmStrCmp(lhs)) !=
cm::cend(CXX_STANDARDS);
}
bool cmMakefile::HaveCxxStandardAvailable(cmTarget const* target,
const std::string& feature,
std::string const& lang) const
{
const char* defaultCxxStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (!defaultCxxStandard) {
this->IssueMessage(
MessageType::INTERNAL_ERROR,
cmStrCat("CMAKE_", lang,
"_STANDARD_DEFAULT is not set. COMPILE_FEATURES support "
"not fully configured for this compiler."));
// Return true so the caller does not try to lookup the default standard.
return true;
}
if (std::find_if(cm::cbegin(CXX_STANDARDS), cm::cend(CXX_STANDARDS),
cmStrCmp(defaultCxxStandard)) == cm::cend(CXX_STANDARDS)) {
const std::string e =
cmStrCat("The CMAKE_", lang, "_STANDARD_DEFAULT variable contains an ",
"invalid value: \"", defaultCxxStandard, "\".");
this->IssueMessage(MessageType::INTERNAL_ERROR, e);
return false;
}
bool needCxx98 = false;
bool needCxx11 = false;
bool needCxx14 = false;
bool needCxx17 = false;
bool needCxx20 = false;
this->CheckNeededCxxLanguage(feature, lang, needCxx98, needCxx11, needCxx14,
needCxx17, needCxx20);
const char* existingCxxStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (!existingCxxStandard) {
existingCxxStandard = defaultCxxStandard;
}
const char* const* existingCxxLevel =
std::find_if(cm::cbegin(CXX_STANDARDS), cm::cend(CXX_STANDARDS),
cmStrCmp(existingCxxStandard));
if (existingCxxLevel == cm::cend(CXX_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCxxStandard, "\".");
this->IssueMessage(MessageType::FATAL_ERROR, e);
return false;
}
/* clang-format off */
const char* const* needCxxLevel =
needCxx20 ? &CXX_STANDARDS[4]
: needCxx17 ? &CXX_STANDARDS[3]
: needCxx14 ? &CXX_STANDARDS[2]
: needCxx11 ? &CXX_STANDARDS[1]
: needCxx98 ? &CXX_STANDARDS[0]
: nullptr;
/* clang-format on */
return !needCxxLevel || needCxxLevel <= existingCxxLevel;
}
void cmMakefile::CheckNeededCxxLanguage(const std::string& feature,
std::string const& lang,
bool& needCxx98, bool& needCxx11,
bool& needCxx14, bool& needCxx17,
bool& needCxx20) const
{
if (const char* propCxx98 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "98_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCxx98);
needCxx98 = cmContains(props, feature);
}
if (const char* propCxx11 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "11_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCxx11);
needCxx11 = cmContains(props, feature);
}
if (const char* propCxx14 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "14_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCxx14);
needCxx14 = cmContains(props, feature);
}
if (const char* propCxx17 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "17_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCxx17);
needCxx17 = cmContains(props, feature);
}
if (const char* propCxx20 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "20_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCxx20);
needCxx20 = cmContains(props, feature);
}
}
bool cmMakefile::AddRequiredTargetCxxFeature(cmTarget* target,
const std::string& feature,
std::string const& lang,
std::string* error) const
{
bool needCxx98 = false;
bool needCxx11 = false;
bool needCxx14 = false;
bool needCxx17 = false;
bool needCxx20 = false;
this->CheckNeededCxxLanguage(feature, lang, needCxx98, needCxx11, needCxx14,
needCxx17, needCxx20);
const char* existingCxxStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (existingCxxStandard == nullptr) {
const char* defaultCxxStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (defaultCxxStandard && *defaultCxxStandard) {
existingCxxStandard = defaultCxxStandard;
}
}
const char* const* existingCxxLevel = nullptr;
if (existingCxxStandard) {
existingCxxLevel =
std::find_if(cm::cbegin(CXX_STANDARDS), cm::cend(CXX_STANDARDS),
cmStrCmp(existingCxxStandard));
if (existingCxxLevel == cm::cend(CXX_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCxxStandard, "\".");
if (error) {
*error = e;
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e,
this->Backtrace);
}
return false;
}
}
/* clang-format off */
const char* const* needCxxLevel =
needCxx20 ? &CXX_STANDARDS[4]
: needCxx17 ? &CXX_STANDARDS[3]
: needCxx14 ? &CXX_STANDARDS[2]
: needCxx11 ? &CXX_STANDARDS[1]
: needCxx98 ? &CXX_STANDARDS[0]
: nullptr;
/* clang-format on */
if (needCxxLevel) {
// Ensure the C++ language level is high enough to support
// the needed C++ features.
if (!existingCxxLevel || existingCxxLevel < needCxxLevel) {
target->SetProperty(cmStrCat(lang, "_STANDARD"), *needCxxLevel);
}
}
return true;
}
bool cmMakefile::HaveCudaStandardAvailable(cmTarget const* target,
const std::string& feature,
std::string const& lang) const
{
const char* defaultCudaStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (!defaultCudaStandard) {
this->IssueMessage(
MessageType::INTERNAL_ERROR,
cmStrCat("CMAKE_", lang,
"_STANDARD_DEFAULT is not set. COMPILE_FEATURES support "
"not fully configured for this compiler."));
// Return true so the caller does not try to lookup the default standard.
return true;
}
if (std::find_if(cm::cbegin(CUDA_STANDARDS), cm::cend(CUDA_STANDARDS),
cmStrCmp(defaultCudaStandard)) ==
cm::cend(CUDA_STANDARDS)) {
const std::string e =
cmStrCat("The CMAKE_", lang, "_STANDARD_DEFAULT variable contains an ",
"invalid value: \"", defaultCudaStandard, "\".");
this->IssueMessage(MessageType::INTERNAL_ERROR, e);
return false;
}
bool needCuda03 = false;
bool needCuda11 = false;
bool needCuda14 = false;
bool needCuda17 = false;
bool needCuda20 = false;
this->CheckNeededCudaLanguage(feature, lang, needCuda03, needCuda11,
needCuda14, needCuda17, needCuda20);
const char* existingCudaStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (!existingCudaStandard) {
existingCudaStandard = defaultCudaStandard;
}
const char* const* existingCudaLevel =
std::find_if(cm::cbegin(CUDA_STANDARDS), cm::cend(CUDA_STANDARDS),
cmStrCmp(existingCudaStandard));
if (existingCudaLevel == cm::cend(CUDA_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCudaStandard, "\".");
this->IssueMessage(MessageType::FATAL_ERROR, e);
return false;
}
/* clang-format off */
const char* const* needCudaLevel =
needCuda20 ? &CUDA_STANDARDS[4]
: needCuda17 ? &CUDA_STANDARDS[3]
: needCuda14 ? &CUDA_STANDARDS[2]
: needCuda11 ? &CUDA_STANDARDS[1]
: needCuda03 ? &CUDA_STANDARDS[0]
: nullptr;
/* clang-format on */
return !needCudaLevel || needCudaLevel <= existingCudaLevel;
}
void cmMakefile::CheckNeededCudaLanguage(const std::string& feature,
std::string const& lang,
bool& needCuda03, bool& needCuda11,
bool& needCuda14, bool& needCuda17,
bool& needCuda20) const
{
if (const char* propCuda03 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "03_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCuda03);
needCuda03 = cmContains(props, feature);
}
if (const char* propCuda11 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "11_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCuda11);
needCuda11 = cmContains(props, feature);
}
if (const char* propCuda14 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "14_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCuda14);
needCuda14 = cmContains(props, feature);
}
if (const char* propCuda17 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "17_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCuda17);
needCuda17 = cmContains(props, feature);
}
if (const char* propCuda20 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "20_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propCuda20);
needCuda20 = cmContains(props, feature);
}
}
bool cmMakefile::AddRequiredTargetCudaFeature(cmTarget* target,
const std::string& feature,
std::string const& lang,
std::string* error) const
{
bool needCuda03 = false;
bool needCuda11 = false;
bool needCuda14 = false;
bool needCuda17 = false;
bool needCuda20 = false;
this->CheckNeededCudaLanguage(feature, lang, needCuda03, needCuda11,
needCuda14, needCuda17, needCuda20);
const char* existingCudaStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (existingCudaStandard == nullptr) {
const char* defaultCudaStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (defaultCudaStandard && *defaultCudaStandard) {
existingCudaStandard = defaultCudaStandard;
}
}
const char* const* existingCudaLevel = nullptr;
if (existingCudaStandard) {
existingCudaLevel =
std::find_if(cm::cbegin(CUDA_STANDARDS), cm::cend(CUDA_STANDARDS),
cmStrCmp(existingCudaStandard));
if (existingCudaLevel == cm::cend(CUDA_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCudaStandard, "\".");
if (error) {
*error = e;
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e,
this->Backtrace);
}
return false;
}
}
/* clang-format off */
const char* const* needCudaLevel =
needCuda20 ? &CUDA_STANDARDS[4]
: needCuda17 ? &CUDA_STANDARDS[3]
: needCuda14 ? &CUDA_STANDARDS[2]
: needCuda11 ? &CUDA_STANDARDS[1]
: needCuda03 ? &CUDA_STANDARDS[0]
: nullptr;
/* clang-format on */
if (needCudaLevel) {
// Ensure the CUDA language level is high enough to support
// the needed CUDA features.
if (!existingCudaLevel || existingCudaLevel < needCudaLevel) {
target->SetProperty("CUDA_STANDARD", *needCudaLevel);
}
}
return true;
}
void cmMakefile::CheckNeededCLanguage(const std::string& feature,
std::string const& lang, bool& needC90,
bool& needC99, bool& needC11) const
{
if (const char* propC90 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "90_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propC90);
needC90 = cmContains(props, feature);
}
if (const char* propC99 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "99_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propC99);
needC99 = cmContains(props, feature);
}
if (const char* propC11 =
this->GetDefinition(cmStrCat("CMAKE_", lang, "11_COMPILE_FEATURES"))) {
std::vector<std::string> props = cmExpandedList(propC11);
needC11 = cmContains(props, feature);
}
}
bool cmMakefile::AddRequiredTargetCFeature(cmTarget* target,
const std::string& feature,
std::string const& lang,
std::string* error) const
{
bool needC90 = false;
bool needC99 = false;
bool needC11 = false;
this->CheckNeededCLanguage(feature, lang, needC90, needC99, needC11);
const char* existingCStandard =
target->GetProperty(cmStrCat(lang, "_STANDARD"));
if (existingCStandard == nullptr) {
const char* defaultCStandard =
this->GetDefinition(cmStrCat("CMAKE_", lang, "_STANDARD_DEFAULT"));
if (defaultCStandard && *defaultCStandard) {
existingCStandard = defaultCStandard;
}
}
if (existingCStandard) {
if (std::find_if(cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS),
cmStrCmp(existingCStandard)) == cm::cend(C_STANDARDS)) {
const std::string e = cmStrCat(
"The ", lang, "_STANDARD property on target \"", target->GetName(),
"\" contained an invalid value: \"", existingCStandard, "\".");
if (error) {
*error = e;
} else {
this->GetCMakeInstance()->IssueMessage(MessageType::FATAL_ERROR, e,
this->Backtrace);
}
return false;
}
}
const char* const* existingCIt = existingCStandard
? std::find_if(cm::cbegin(C_STANDARDS), cm::cend(C_STANDARDS),
cmStrCmp(existingCStandard))
: cm::cend(C_STANDARDS);
bool setC90 = needC90 && !existingCStandard;
bool setC99 = needC99 && !existingCStandard;
bool setC11 = needC11 && !existingCStandard;
if (needC11 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS), cmStrCmp("11"))) {
setC11 = true;
} else if (needC99 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS),
cmStrCmp("99"))) {
setC99 = true;
} else if (needC90 && existingCStandard &&
existingCIt < std::find_if(cm::cbegin(C_STANDARDS),
cm::cend(C_STANDARDS),
cmStrCmp("90"))) {
setC90 = true;
}
if (setC11) {
target->SetProperty(cmStrCat(lang, "_STANDARD"), "11");
} else if (setC99) {
target->SetProperty(cmStrCat(lang, "_STANDARD"), "99");
} else if (setC90) {
target->SetProperty(cmStrCat(lang, "_STANDARD"), "90");
}
return true;
}
cmMakefile::FunctionPushPop::FunctionPushPop(cmMakefile* mf,
const std::string& fileName,
cmPolicies::PolicyMap const& pm)
: Makefile(mf)
, ReportError(true)
{
this->Makefile->PushFunctionScope(fileName, pm);
}
cmMakefile::FunctionPushPop::~FunctionPushPop()
{
this->Makefile->PopFunctionScope(this->ReportError);
}
cmMakefile::MacroPushPop::MacroPushPop(cmMakefile* mf,
const std::string& fileName,
const cmPolicies::PolicyMap& pm)
: Makefile(mf)
, ReportError(true)
{
this->Makefile->PushMacroScope(fileName, pm);
}
cmMakefile::MacroPushPop::~MacroPushPop()
{
this->Makefile->PopMacroScope(this->ReportError);
}
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