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fuchsia / third_party / cmake / refs/heads/upstream/master / . / Source / cmLocalUnixMakefileGenerator3.cxx
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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 "cmLocalUnixMakefileGenerator3.h"
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <functional>
#include <sstream>
#include <utility>
#include <cm/memory>
#include <cm/optional>
#include <cm/string_view>
#include <cm/vector>
#include <cmext/algorithm>
#include <cmext/string_view>
#include "cmsys/FStream.hxx"
#include "cmsys/Terminal.h"
#include "cmCMakePath.h"
#include "cmCustomCommand.h" // IWYU pragma: keep
#include "cmCustomCommandGenerator.h"
#include "cmDependsCompiler.h"
#include "cmFileTimeCache.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorExpression.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalGenerator.h"
#include "cmGlobalUnixMakefileGenerator3.h"
#include "cmList.h"
#include "cmListFileCache.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmMakefileTargetGenerator.h"
#include "cmOutputConverter.h"
#include "cmRange.h"
#include "cmRulePlaceholderExpander.h"
#include "cmSourceFile.h"
#include "cmState.h"
#include "cmStateSnapshot.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
#include "cmTargetDepend.h"
#include "cmValue.h"
#include "cmVersion.h"
#include "cmake.h"
// Include dependency scanners for supported languages. Only the
// C/C++ scanner is needed for bootstrapping CMake.
#include "cmDependsC.h"
#ifndef CMAKE_BOOTSTRAP
# include "cmDependsFortran.h"
# include "cmDependsJava.h"
#endif
namespace {
// Helper function used below.
std::string cmSplitExtension(std::string const& in, std::string& base)
{
std::string ext;
std::string::size_type dot_pos = in.rfind('.');
if (dot_pos != std::string::npos) {
// Remove the extension first in case &base == &in.
ext = in.substr(dot_pos);
base = in.substr(0, dot_pos);
} else {
base = in;
}
return ext;
}
// Helper predicate for removing absolute paths that don't point to the
// source or binary directory. It is used when CMAKE_DEPENDS_IN_PROJECT_ONLY
// is set ON, to only consider in-project dependencies during the build.
class NotInProjectDir
{
public:
// Constructor with the source and binary directory's path
NotInProjectDir(cm::string_view sourceDir, cm::string_view binaryDir)
: SourceDir(sourceDir)
, BinaryDir(binaryDir)
{
}
// Operator evaluating the predicate
bool operator()(const std::string& p) const
{
auto path = cmCMakePath(p).Normal();
// Keep all relative paths:
if (path.IsRelative()) {
return false;
}
// If it's an absolute path, check if it starts with the source
// directory:
return !(cmCMakePath(this->SourceDir).IsPrefix(path) ||
cmCMakePath(this->BinaryDir).IsPrefix(path));
}
private:
// The path to the source directory
cm::string_view SourceDir;
// The path to the binary directory
cm::string_view BinaryDir;
};
}
cmLocalUnixMakefileGenerator3::cmLocalUnixMakefileGenerator3(
cmGlobalGenerator* gg, cmMakefile* mf)
: cmLocalCommonGenerator(gg, mf)
{
this->MakefileVariableSize = 0;
this->ColorMakefile = false;
this->SkipPreprocessedSourceRules = false;
this->SkipAssemblySourceRules = false;
this->MakeCommandEscapeTargetTwice = false;
this->BorlandMakeCurlyHack = false;
}
cmLocalUnixMakefileGenerator3::~cmLocalUnixMakefileGenerator3() = default;
std::string cmLocalUnixMakefileGenerator3::GetConfigName() const
{
auto const& configNames = this->GetConfigNames();
assert(configNames.size() == 1);
return configNames.front();
}
void cmLocalUnixMakefileGenerator3::Generate()
{
// Record whether some options are enabled to avoid checking many
// times later.
if (!this->GetGlobalGenerator()->GetCMakeInstance()->GetIsInTryCompile()) {
if (this->Makefile->IsSet("CMAKE_COLOR_MAKEFILE")) {
this->ColorMakefile = this->Makefile->IsOn("CMAKE_COLOR_MAKEFILE");
} else {
this->ColorMakefile = this->Makefile->IsOn("CMAKE_COLOR_DIAGNOSTICS");
}
}
this->SkipPreprocessedSourceRules =
this->Makefile->IsOn("CMAKE_SKIP_PREPROCESSED_SOURCE_RULES");
this->SkipAssemblySourceRules =
this->Makefile->IsOn("CMAKE_SKIP_ASSEMBLY_SOURCE_RULES");
// Generate the rule files for each target.
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
for (cmGeneratorTarget* gt :
this->GlobalGenerator->GetLocalGeneratorTargetsInOrder(this)) {
if (!gt->IsInBuildSystem()) {
continue;
}
auto& gtVisited = this->GetCommandsVisited(gt);
const auto& deps = this->GlobalGenerator->GetTargetDirectDepends(gt);
for (const auto& d : deps) {
// Take the union of visited source files of custom commands
auto depVisited = this->GetCommandsVisited(d);
gtVisited.insert(depVisited.begin(), depVisited.end());
}
std::unique_ptr<cmMakefileTargetGenerator> tg(
cmMakefileTargetGenerator::New(gt));
if (tg) {
tg->WriteRuleFiles();
gg->RecordTargetProgress(tg.get());
}
}
// write the local Makefile
this->WriteLocalMakefile();
// Write the cmake file with information for this directory.
this->WriteDirectoryInformationFile();
}
void cmLocalUnixMakefileGenerator3::ComputeHomeRelativeOutputPath()
{
// Compute the path to use when referencing the current output
// directory from the top output directory.
this->HomeRelativeOutputPath =
this->MaybeRelativeToTopBinDir(this->GetCurrentBinaryDirectory());
if (this->HomeRelativeOutputPath == ".") {
this->HomeRelativeOutputPath.clear();
}
if (!this->HomeRelativeOutputPath.empty()) {
this->HomeRelativeOutputPath += "/";
}
}
void cmLocalUnixMakefileGenerator3::GetLocalObjectFiles(
std::map<std::string, LocalObjectInfo>& localObjectFiles)
{
for (const auto& gt : this->GetGeneratorTargets()) {
if (!gt->CanCompileSources()) {
continue;
}
std::vector<cmSourceFile const*> objectSources;
gt->GetObjectSources(objectSources, this->GetConfigName());
// Compute full path to object file directory for this target.
std::string dir = cmStrCat(gt->LocalGenerator->GetCurrentBinaryDirectory(),
'/', this->GetTargetDirectory(gt.get()), '/');
// Compute the name of each object file.
for (cmSourceFile const* sf : objectSources) {
bool hasSourceExtension = true;
std::string objectName =
this->GetObjectFileNameWithoutTarget(*sf, dir, &hasSourceExtension);
if (cmSystemTools::FileIsFullPath(objectName)) {
objectName = cmSystemTools::GetFilenameName(objectName);
}
LocalObjectInfo& info = localObjectFiles[objectName];
info.HasSourceExtension = hasSourceExtension;
info.emplace_back(gt.get(), sf->GetLanguage());
}
}
}
void cmLocalUnixMakefileGenerator3::GetIndividualFileTargets(
std::vector<std::string>& targets)
{
std::map<std::string, LocalObjectInfo> localObjectFiles;
this->GetLocalObjectFiles(localObjectFiles);
for (auto const& localObjectFile : localObjectFiles) {
targets.push_back(localObjectFile.first);
std::string::size_type dot_pos = localObjectFile.first.rfind(".");
std::string base = localObjectFile.first.substr(0, dot_pos);
if (localObjectFile.second.HasPreprocessRule) {
targets.push_back(base + ".i");
}
if (localObjectFile.second.HasAssembleRule) {
targets.push_back(base + ".s");
}
}
}
std::string cmLocalUnixMakefileGenerator3::GetLinkDependencyFile(
cmGeneratorTarget* target, std::string const& /*config*/) const
{
return cmStrCat(target->GetSupportDirectory(), "/link.d");
}
void cmLocalUnixMakefileGenerator3::WriteLocalMakefile()
{
// generate the includes
std::string ruleFileName = "Makefile";
// Open the rule file. This should be copy-if-different because the
// rules may depend on this file itself.
std::string ruleFileNameFull = this->ConvertToFullPath(ruleFileName);
cmGeneratedFileStream ruleFileStream(
ruleFileNameFull, false, this->GlobalGenerator->GetMakefileEncoding());
if (!ruleFileStream) {
return;
}
// always write the top makefile
if (!this->IsRootMakefile()) {
ruleFileStream.SetCopyIfDifferent(true);
}
// write the all rules
this->WriteLocalAllRules(ruleFileStream);
// only write local targets unless at the top Keep track of targets already
// listed.
std::set<std::string> emittedTargets;
if (!this->IsRootMakefile()) {
// write our targets, and while doing it collect up the object
// file rules
this->WriteLocalMakefileTargets(ruleFileStream, emittedTargets);
} else {
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
gg->WriteConvenienceRules(ruleFileStream, emittedTargets);
}
bool do_preprocess_rules = this->GetCreatePreprocessedSourceRules();
bool do_assembly_rules = this->GetCreateAssemblySourceRules();
std::map<std::string, LocalObjectInfo> localObjectFiles;
this->GetLocalObjectFiles(localObjectFiles);
// now write out the object rules
// for each object file name
for (auto& localObjectFile : localObjectFiles) {
// Add a convenience rule for building the object file.
this->WriteObjectConvenienceRule(
ruleFileStream, "target to build an object file", localObjectFile.first,
localObjectFile.second);
// Check whether preprocessing and assembly rules make sense.
// They make sense only for C and C++ sources.
bool lang_has_preprocessor = false;
bool lang_has_assembly = false;
for (LocalObjectEntry const& entry : localObjectFile.second) {
if (entry.Language == "C" || entry.Language == "CXX" ||
entry.Language == "CUDA" || entry.Language == "Fortran" ||
entry.Language == "HIP" || entry.Language == "ISPC") {
// Right now, C, C++, CUDA, Fortran, HIP and ISPC have both a
// preprocessor and the ability to generate assembly code
lang_has_preprocessor = true;
lang_has_assembly = true;
break;
}
}
// Add convenience rules for preprocessed and assembly files.
if (lang_has_preprocessor && do_preprocess_rules) {
std::string::size_type dot_pos = localObjectFile.first.rfind(".");
std::string base = localObjectFile.first.substr(0, dot_pos);
this->WriteObjectConvenienceRule(ruleFileStream,
"target to preprocess a source file",
(base + ".i"), localObjectFile.second);
localObjectFile.second.HasPreprocessRule = true;
}
if (lang_has_assembly && do_assembly_rules) {
std::string::size_type dot_pos = localObjectFile.first.rfind(".");
std::string base = localObjectFile.first.substr(0, dot_pos);
this->WriteObjectConvenienceRule(
ruleFileStream, "target to generate assembly for a file",
(base + ".s"), localObjectFile.second);
localObjectFile.second.HasAssembleRule = true;
}
}
// add a help target as long as there isn;t a real target named help
if (emittedTargets.insert("help").second) {
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
gg->WriteHelpRule(ruleFileStream, this);
}
this->WriteSpecialTargetsBottom(ruleFileStream);
}
void cmLocalUnixMakefileGenerator3::WriteObjectConvenienceRule(
std::ostream& ruleFileStream, const char* comment, const std::string& output,
LocalObjectInfo const& info)
{
// If the rule includes the source file extension then create a
// version that has the extension removed. The help should include
// only the version without source extension.
bool inHelp = true;
if (info.HasSourceExtension) {
// Remove the last extension. This should be kept.
std::string outBase1 = output;
std::string outExt1 = cmSplitExtension(outBase1, outBase1);
// Now remove the source extension and put back the last
// extension.
std::string outNoExt;
cmSplitExtension(outBase1, outNoExt);
outNoExt += outExt1;
// Add a rule to drive the rule below.
std::vector<std::string> depends;
depends.emplace_back(output);
std::vector<std::string> no_commands;
this->WriteMakeRule(ruleFileStream, nullptr, outNoExt, depends,
no_commands, true, true);
inHelp = false;
}
// Recursively make the rule for each target using the object file.
std::vector<std::string> commands;
for (LocalObjectEntry const& t : info) {
std::string tgtMakefileName = this->GetRelativeTargetDirectory(t.Target);
std::string targetName = tgtMakefileName;
tgtMakefileName += "/build.make";
targetName += "/";
targetName += output;
commands.push_back(
this->GetRecursiveMakeCall(tgtMakefileName, targetName));
}
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
// Write the rule to the makefile.
std::vector<std::string> no_depends;
this->WriteMakeRule(ruleFileStream, comment, output, no_depends, commands,
true, inHelp);
}
void cmLocalUnixMakefileGenerator3::WriteLocalMakefileTargets(
std::ostream& ruleFileStream, std::set<std::string>& emitted)
{
std::vector<std::string> depends;
std::vector<std::string> commands;
// for each target we just provide a rule to cd up to the top and do a make
// on the target
std::string localName;
for (const auto& target : this->GetGeneratorTargets()) {
if ((target->GetType() == cmStateEnums::EXECUTABLE) ||
(target->GetType() == cmStateEnums::STATIC_LIBRARY) ||
(target->GetType() == cmStateEnums::SHARED_LIBRARY) ||
(target->GetType() == cmStateEnums::MODULE_LIBRARY) ||
(target->GetType() == cmStateEnums::OBJECT_LIBRARY) ||
(target->GetType() == cmStateEnums::UTILITY)) {
emitted.insert(target->GetName());
// for subdirs add a rule to build this specific target by name.
localName =
cmStrCat(this->GetRelativeTargetDirectory(target.get()), "/rule");
commands.clear();
depends.clear();
// Build the target for this pass.
std::string makefile2 = "CMakeFiles/Makefile2";
commands.push_back(this->GetRecursiveMakeCall(makefile2, localName));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream, "Convenience name for target.",
localName, depends, commands, true);
// Add a target with the canonical name (no prefix, suffix or path).
if (localName != target->GetName()) {
commands.clear();
depends.push_back(localName);
this->WriteMakeRule(ruleFileStream, "Convenience name for target.",
target->GetName(), depends, commands, true);
}
// Add a fast rule to build the target
std::string makefileName = cmStrCat(
this->GetRelativeTargetDirectory(target.get()), "/build.make");
// make sure the makefile name is suitable for a makefile
std::string makeTargetName =
cmStrCat(this->GetRelativeTargetDirectory(target.get()), "/build");
localName = cmStrCat(target->GetName(), "/fast");
depends.clear();
commands.clear();
commands.push_back(
this->GetRecursiveMakeCall(makefileName, makeTargetName));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream, "fast build rule for target.",
localName, depends, commands, true);
// Add a local name for the rule to relink the target before
// installation.
if (target->NeedRelinkBeforeInstall(this->GetConfigName())) {
makeTargetName = cmStrCat(
this->GetRelativeTargetDirectory(target.get()), "/preinstall");
localName = cmStrCat(target->GetName(), "/preinstall");
depends.clear();
commands.clear();
commands.push_back(
this->GetRecursiveMakeCall(makefile2, makeTargetName));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream,
"Manual pre-install relink rule for target.",
localName, depends, commands, true);
}
}
}
}
void cmLocalUnixMakefileGenerator3::WriteDirectoryInformationFile()
{
std::string infoFileName =
cmStrCat(this->GetCurrentBinaryDirectory(),
"/CMakeFiles/CMakeDirectoryInformation.cmake");
// Open the output file.
cmGeneratedFileStream infoFileStream(infoFileName);
if (!infoFileStream) {
return;
}
infoFileStream.SetCopyIfDifferent(true);
// Write the do not edit header.
this->WriteDisclaimer(infoFileStream);
// Setup relative path conversion tops.
/* clang-format off */
infoFileStream
<< "# Relative path conversion top directories.\n"
<< "set(CMAKE_RELATIVE_PATH_TOP_SOURCE \""
<< this->GetRelativePathTopSource() << "\")\n"
<< "set(CMAKE_RELATIVE_PATH_TOP_BINARY \""
<< this->GetRelativePathTopBinary() << "\")\n"
<< "\n";
/* clang-format on */
// Tell the dependency scanner to use unix paths if necessary.
if (cmSystemTools::GetForceUnixPaths()) {
/* clang-format off */
infoFileStream
<< "# Force unix paths in dependencies.\n"
<< "set(CMAKE_FORCE_UNIX_PATHS 1)\n"
<< "\n";
/* clang-format on */
}
// Store the include regular expressions for this directory.
infoFileStream << "\n"
<< "# The C and CXX include file regular expressions for "
<< "this directory.\n";
infoFileStream << "set(CMAKE_C_INCLUDE_REGEX_SCAN ";
cmLocalUnixMakefileGenerator3::WriteCMakeArgument(
infoFileStream, this->Makefile->GetIncludeRegularExpression());
infoFileStream << ")\n";
infoFileStream << "set(CMAKE_C_INCLUDE_REGEX_COMPLAIN ";
cmLocalUnixMakefileGenerator3::WriteCMakeArgument(
infoFileStream, this->Makefile->GetComplainRegularExpression());
infoFileStream << ")\n";
infoFileStream
<< "set(CMAKE_CXX_INCLUDE_REGEX_SCAN ${CMAKE_C_INCLUDE_REGEX_SCAN})\n";
infoFileStream << "set(CMAKE_CXX_INCLUDE_REGEX_COMPLAIN "
"${CMAKE_C_INCLUDE_REGEX_COMPLAIN})\n";
}
std::string cmLocalUnixMakefileGenerator3::ConvertToFullPath(
const std::string& localPath)
{
std::string dir =
cmStrCat(this->GetCurrentBinaryDirectory(), '/', localPath);
return dir;
}
const std::string& cmLocalUnixMakefileGenerator3::GetHomeRelativeOutputPath()
{
return this->HomeRelativeOutputPath;
}
std::string cmLocalUnixMakefileGenerator3::ConvertToMakefilePath(
std::string const& path) const
{
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
return gg->ConvertToMakefilePath(path);
}
void cmLocalUnixMakefileGenerator3::WriteMakeRule(
std::ostream& os, const char* comment, const std::string& target,
const std::vector<std::string>& depends,
const std::vector<std::string>& commands, bool symbolic, bool in_help)
{
// Make sure there is a target.
if (target.empty()) {
std::string err("No target for WriteMakeRule! called with comment: ");
if (comment) {
err += comment;
}
cmSystemTools::Error(err);
return;
}
std::string replace;
// Write the comment describing the rule in the makefile.
if (comment) {
replace = comment;
std::string::size_type lpos = 0;
std::string::size_type rpos;
while ((rpos = replace.find('\n', lpos)) != std::string::npos) {
os << "# " << replace.substr(lpos, rpos - lpos) << "\n";
lpos = rpos + 1;
}
os << "# " << replace.substr(lpos) << "\n";
}
// Construct the left hand side of the rule.
std::string tgt =
this->ConvertToMakefilePath(this->MaybeRelativeToTopBinDir(target));
const char* space = "";
if (tgt.size() == 1) {
// Add a space before the ":" to avoid drive letter confusion on
// Windows.
space = " ";
}
// Mark the rule as symbolic if requested.
if (symbolic) {
if (cmValue sym =
this->Makefile->GetDefinition("CMAKE_MAKE_SYMBOLIC_RULE")) {
os << tgt << space << ": " << *sym << "\n";
}
}
// Write the rule.
if (depends.empty()) {
// No dependencies. The commands will always run.
os << tgt << space << ":\n";
} else {
// Split dependencies into multiple rule lines. This allows for
// very long dependency lists even on older make implementations.
for (std::string const& depend : depends) {
os << tgt << space << ": "
<< this->ConvertToMakefilePath(this->MaybeRelativeToTopBinDir(depend))
<< '\n';
}
}
if (!commands.empty()) {
// Write the list of commands.
os << cmWrap("\t", commands, "", "\n") << "\n";
}
if (symbolic && !this->IsWatcomWMake()) {
os << ".PHONY : " << tgt << "\n";
}
os << "\n";
// Add the output to the local help if requested.
if (in_help) {
this->LocalHelp.push_back(target);
}
}
std::string cmLocalUnixMakefileGenerator3::MaybeConvertWatcomShellCommand(
std::string const& cmd)
{
if (this->IsWatcomWMake() && cmSystemTools::FileIsFullPath(cmd) &&
cmd.find_first_of("( )") != std::string::npos) {
// On Watcom WMake use the windows short path for the command
// name. This is needed to avoid funny quoting problems on
// lines with shell redirection operators.
std::string scmd;
if (cmSystemTools::GetShortPath(cmd, scmd)) {
return this->ConvertToOutputFormat(scmd, cmOutputConverter::SHELL);
}
}
return std::string();
}
void cmLocalUnixMakefileGenerator3::WriteMakeVariables(
std::ostream& makefileStream)
{
this->WriteDivider(makefileStream);
makefileStream << "# Set environment variables for the build.\n"
<< "\n";
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
if (gg->DefineWindowsNULL) {
makefileStream << "!IF \"$(OS)\" == \"Windows_NT\"\n"
<< "NULL=\n"
<< "!ELSE\n"
<< "NULL=nul\n"
<< "!ENDIF\n";
}
if (this->IsWindowsShell()) {
makefileStream << "SHELL = cmd.exe\n"
<< "\n";
} else {
#if !defined(__VMS)
/* clang-format off */
makefileStream
<< "# The shell in which to execute make rules.\n"
<< "SHELL = /bin/sh\n"
<< "\n";
/* clang-format on */
#endif
}
std::string cmakeShellCommand =
this->MaybeConvertWatcomShellCommand(cmSystemTools::GetCMakeCommand());
if (cmakeShellCommand.empty()) {
cmakeShellCommand = this->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
}
/* clang-format off */
makefileStream
<< "# The CMake executable.\n"
<< "CMAKE_COMMAND = "
<< cmakeShellCommand
<< "\n"
<< "\n";
makefileStream
<< "# The command to remove a file.\n"
<< "RM = "
<< cmakeShellCommand
<< " -E rm -f\n"
<< "\n";
makefileStream
<< "# Escaping for special characters.\n"
<< "EQUALS = =\n"
<< "\n";
makefileStream
<< "# The top-level source directory on which CMake was run.\n"
<< "CMAKE_SOURCE_DIR = "
<< this->ConvertToOutputFormat(
this->GetSourceDirectory(), cmOutputConverter::SHELL)
<< "\n"
<< "\n";
makefileStream
<< "# The top-level build directory on which CMake was run.\n"
<< "CMAKE_BINARY_DIR = "
<< this->ConvertToOutputFormat(
this->GetBinaryDirectory(), cmOutputConverter::SHELL)
<< "\n"
<< "\n";
/* clang-format on */
}
void cmLocalUnixMakefileGenerator3::WriteSpecialTargetsTop(
std::ostream& makefileStream)
{
this->WriteDivider(makefileStream);
makefileStream << "# Special targets provided by cmake.\n"
<< "\n";
std::vector<std::string> no_commands;
std::vector<std::string> no_depends;
// Special target to cleanup operation of make tool.
// This should be the first target except for the default_target in
// the interface Makefile.
this->WriteMakeRule(makefileStream,
"Disable implicit rules so canonical targets will work.",
".SUFFIXES", no_depends, no_commands, false);
if (!this->IsNMake() && !this->IsWatcomWMake() &&
!this->BorlandMakeCurlyHack) {
// turn off RCS and SCCS automatic stuff from gmake
constexpr const char* vcs_rules[] = {
"%,v", "RCS/%", "RCS/%,v", "SCCS/s.%", "s.%",
};
for (const auto* vcs_rule : vcs_rules) {
std::vector<std::string> vcs_depend;
vcs_depend.emplace_back(vcs_rule);
this->WriteMakeRule(makefileStream, "Disable VCS-based implicit rules.",
"%", vcs_depend, no_commands, false);
}
}
// Add a fake suffix to keep HP happy. Must be max 32 chars for SGI make.
std::vector<std::string> depends;
depends.emplace_back(".hpux_make_needs_suffix_list");
this->WriteMakeRule(makefileStream, nullptr, ".SUFFIXES", depends,
no_commands, false);
if (this->IsWatcomWMake()) {
// Switch on WMake feature, if an error or interrupt occurs during
// makefile processing, the current target being made may be deleted
// without prompting (the same as command line -e option).
/* clang-format off */
makefileStream <<
"\n"
".ERASE\n"
"\n"
;
/* clang-format on */
}
if (this->Makefile->IsOn("CMAKE_VERBOSE_MAKEFILE")) {
/* clang-format off */
makefileStream
<< "# Produce verbose output by default.\n"
<< "VERBOSE = 1\n"
<< "\n";
/* clang-format on */
}
if (this->IsWatcomWMake()) {
/* clang-format off */
makefileStream <<
"!ifndef VERBOSE\n"
".SILENT\n"
"!endif\n"
"\n"
;
/* clang-format on */
} else {
makefileStream << "# Command-line flag to silence nested $(MAKE).\n"
"$(VERBOSE)MAKESILENT = -s\n"
"\n";
// Write special target to silence make output. This must be after
// the default target in case VERBOSE is set (which changes the
// name). The setting of CMAKE_VERBOSE_MAKEFILE to ON will cause a
// "VERBOSE=1" to be added as a make variable which will change the
// name of this special target. This gives a make-time choice to
// the user.
// Write directly to the stream since WriteMakeRule escapes '$'.
makefileStream << "#Suppress display of executed commands.\n"
"$(VERBOSE).SILENT:\n"
"\n";
}
// Work-around for makes that drop rules that have no dependencies
// or commands.
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
std::string hack = gg->GetEmptyRuleHackDepends();
if (!hack.empty()) {
no_depends.push_back(std::move(hack));
}
std::string hack_cmd = gg->GetEmptyRuleHackCommand();
if (!hack_cmd.empty()) {
no_commands.push_back(std::move(hack_cmd));
}
// Special symbolic target that never exists to force dependers to
// run their rules.
this->WriteMakeRule(makefileStream, "A target that is always out of date.",
"cmake_force", no_depends, no_commands, true);
// Variables for reference by other rules.
this->WriteMakeVariables(makefileStream);
}
void cmLocalUnixMakefileGenerator3::WriteSpecialTargetsBottom(
std::ostream& makefileStream)
{
this->WriteDivider(makefileStream);
makefileStream << "# Special targets to cleanup operation of make.\n"
<< "\n";
// Write special "cmake_check_build_system" target to run cmake with
// the --check-build-system flag.
if (!this->GlobalGenerator->GlobalSettingIsOn(
"CMAKE_SUPPRESS_REGENERATION")) {
// Build command to run CMake to check if anything needs regenerating.
std::vector<std::string> commands;
cmake* cm = this->GlobalGenerator->GetCMakeInstance();
if (cm->DoWriteGlobVerifyTarget()) {
std::string rescanRule =
cmStrCat("$(CMAKE_COMMAND) -P ",
this->ConvertToOutputFormat(cm->GetGlobVerifyScript(),
cmOutputConverter::SHELL));
commands.push_back(rescanRule);
}
std::string cmakefileName = "CMakeFiles/Makefile.cmake";
std::string runRule = cmStrCat(
"$(CMAKE_COMMAND) -S$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) ",
cm->GetIgnoreWarningAsError() ? "--compile-no-warning-as-error " : "",
"--check-build-system ",
this->ConvertToOutputFormat(cmakefileName, cmOutputConverter::SHELL),
" 0");
std::vector<std::string> no_depends;
commands.push_back(std::move(runRule));
if (!this->IsRootMakefile()) {
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
}
this->WriteMakeRule(makefileStream,
"Special rule to run CMake to check the build system "
"integrity.\n"
"No rule that depends on this can have "
"commands that come from listfiles\n"
"because they might be regenerated.",
"cmake_check_build_system", no_depends, commands,
true);
}
}
void cmLocalUnixMakefileGenerator3::WriteConvenienceRule(
std::ostream& ruleFileStream, const std::string& realTarget,
const std::string& helpTarget)
{
// A rule is only needed if the names are different.
if (realTarget != helpTarget) {
// The helper target depends on the real target.
std::vector<std::string> depends;
depends.push_back(realTarget);
// There are no commands.
std::vector<std::string> no_commands;
// Write the rule.
this->WriteMakeRule(ruleFileStream, "Convenience name for target.",
helpTarget, depends, no_commands, true);
}
}
std::string cmLocalUnixMakefileGenerator3::GetRelativeTargetDirectory(
cmGeneratorTarget const* target) const
{
std::string dir =
cmStrCat(this->HomeRelativeOutputPath, this->GetTargetDirectory(target));
return dir;
}
void cmLocalUnixMakefileGenerator3::AppendFlags(
std::string& flags, const std::string& newFlags) const
{
if (this->IsWatcomWMake() && !newFlags.empty()) {
std::string newf = newFlags;
if (newf.find("\\\"") != std::string::npos) {
cmSystemTools::ReplaceString(newf, "\\\"", "\"");
this->cmLocalGenerator::AppendFlags(flags, newf);
return;
}
}
this->cmLocalGenerator::AppendFlags(flags, newFlags);
}
void cmLocalUnixMakefileGenerator3::AppendRuleDepend(
std::vector<std::string>& depends, const char* ruleFileName)
{
// Add a dependency on the rule file itself unless an option to skip
// it is specifically enabled by the user or project.
cmValue nodep = this->Makefile->GetDefinition("CMAKE_SKIP_RULE_DEPENDENCY");
if (nodep.IsOff()) {
depends.emplace_back(ruleFileName);
}
}
void cmLocalUnixMakefileGenerator3::AppendRuleDepends(
std::vector<std::string>& depends, std::vector<std::string> const& ruleFiles)
{
// Add a dependency on the rule file itself unless an option to skip
// it is specifically enabled by the user or project.
if (!this->Makefile->IsOn("CMAKE_SKIP_RULE_DEPENDENCY")) {
cm::append(depends, ruleFiles);
}
}
void cmLocalUnixMakefileGenerator3::AppendCustomDepends(
std::vector<std::string>& depends, const std::vector<cmCustomCommand>& ccs)
{
for (cmCustomCommand const& cc : ccs) {
cmCustomCommandGenerator ccg(cc, this->GetConfigName(), this);
this->AppendCustomDepend(depends, ccg);
}
}
void cmLocalUnixMakefileGenerator3::AppendCustomDepend(
std::vector<std::string>& depends, cmCustomCommandGenerator const& ccg)
{
for (std::string const& d : ccg.GetDepends()) {
// Lookup the real name of the dependency in case it is a CMake target.
std::string dep;
if (this->GetRealDependency(d, this->GetConfigName(), dep)) {
depends.push_back(std::move(dep));
}
}
}
void cmLocalUnixMakefileGenerator3::AppendCustomCommands(
std::vector<std::string>& commands, const std::vector<cmCustomCommand>& ccs,
cmGeneratorTarget* target, std::string const& relative)
{
for (cmCustomCommand const& cc : ccs) {
cmCustomCommandGenerator ccg(cc, this->GetConfigName(), this);
this->AppendCustomCommand(commands, ccg, target, relative, true);
}
}
void cmLocalUnixMakefileGenerator3::AppendCustomCommand(
std::vector<std::string>& commands, cmCustomCommandGenerator const& ccg,
cmGeneratorTarget* target, std::string const& relative, bool echo_comment,
std::ostream* content)
{
// Optionally create a command to display the custom command's
// comment text. This is used for pre-build, pre-link, and
// post-build command comments. Custom build step commands have
// their comments generated elsewhere.
if (echo_comment) {
if (cm::optional<std::string> comment = ccg.GetComment()) {
this->AppendEcho(commands, *comment,
cmLocalUnixMakefileGenerator3::EchoGenerate);
}
}
// if the command specified a working directory use it.
std::string dir = this->GetCurrentBinaryDirectory();
std::string workingDir = ccg.GetWorkingDirectory();
if (!workingDir.empty()) {
dir = workingDir;
}
if (content) {
*content << dir;
}
auto rulePlaceholderExpander = this->CreateRulePlaceholderExpander();
// Add each command line to the set of commands.
std::vector<std::string> commands1;
for (unsigned int c = 0; c < ccg.GetNumberOfCommands(); ++c) {
// Build the command line in a single string.
std::string cmd = ccg.GetCommand(c);
if (!cmd.empty()) {
// Use "call " before any invocations of .bat or .cmd files
// invoked as custom commands in the WindowsShell.
//
bool useCall = false;
if (this->IsWindowsShell()) {
std::string suffix;
if (cmd.size() > 4) {
suffix = cmSystemTools::LowerCase(cmd.substr(cmd.size() - 4));
if (suffix == ".bat" || suffix == ".cmd") {
useCall = true;
}
}
}
cmSystemTools::ReplaceString(cmd, "/./", "/");
// Convert the command to a relative path only if the current
// working directory will be the start-output directory.
bool had_slash = cmd.find('/') != std::string::npos;
if (workingDir.empty()) {
cmd = this->MaybeRelativeToCurBinDir(cmd);
}
bool has_slash = cmd.find('/') != std::string::npos;
if (had_slash && !has_slash) {
// This command was specified as a path to a file in the
// current directory. Add a leading "./" so it can run
// without the current directory being in the search path.
cmd = cmStrCat("./", cmd);
}
std::string launcher;
// Short-circuit if there is no launcher.
std::string val = this->GetRuleLauncher(
target, "RULE_LAUNCH_CUSTOM",
this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE"));
if (cmNonempty(val)) {
// Expand rule variables referenced in the given launcher command.
cmRulePlaceholderExpander::RuleVariables vars;
vars.CMTargetName = target->GetName().c_str();
vars.CMTargetType =
cmState::GetTargetTypeName(target->GetType()).c_str();
std::string output;
const std::vector<std::string>& outputs = ccg.GetOutputs();
if (!outputs.empty()) {
output = outputs[0];
if (workingDir.empty()) {
output = this->MaybeRelativeToCurBinDir(output);
}
output =
this->ConvertToOutputFormat(output, cmOutputConverter::SHELL);
}
vars.Output = output.c_str();
launcher = val;
rulePlaceholderExpander->ExpandRuleVariables(this, launcher, vars);
if (!launcher.empty()) {
launcher += " ";
}
}
std::string shellCommand = this->MaybeConvertWatcomShellCommand(cmd);
if (shellCommand.empty()) {
shellCommand =
this->ConvertToOutputFormat(cmd, cmOutputConverter::SHELL);
}
cmd = launcher + shellCommand;
ccg.AppendArguments(c, cmd);
if (content) {
// Rule content does not include the launcher.
*content << (cmd.c_str() + launcher.size());
}
if (this->BorlandMakeCurlyHack) {
// Borland Make has a very strange bug. If the first curly
// brace anywhere in the command string is a left curly, it
// must be written {{} instead of just {. Otherwise some
// curly braces are removed. The hack can be skipped if the
// first curly brace is the last character.
std::string::size_type lcurly = cmd.find('{');
if (lcurly != std::string::npos && lcurly < (cmd.size() - 1)) {
std::string::size_type rcurly = cmd.find('}');
if (rcurly == std::string::npos || rcurly > lcurly) {
// The first curly is a left curly. Use the hack.
cmd =
cmStrCat(cmd.substr(0, lcurly), "{{}", cmd.substr(lcurly + 1));
}
}
}
if (launcher.empty()) {
if (useCall) {
cmd = cmStrCat("call ", cmd);
} else if (this->IsNMake() && cmd[0] == '"') {
cmd = cmStrCat("echo >nul && ", cmd);
}
}
commands1.push_back(std::move(cmd));
}
}
// Setup the proper working directory for the commands.
this->CreateCDCommand(commands1, dir, relative);
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
// Prefix the commands with the jobserver prefix "+"
if (ccg.GetCC().GetJobserverAware() && gg->IsGNUMakeJobServerAware()) {
std::transform(commands1.begin(), commands1.end(), commands1.begin(),
[](std::string const& cmd) { return cmStrCat("+", cmd); });
}
// push back the custom commands
cm::append(commands, commands1);
}
void cmLocalUnixMakefileGenerator3::AppendCleanCommand(
std::vector<std::string>& commands, const std::set<std::string>& files,
cmGeneratorTarget* target, const char* filename)
{
std::string currentBinDir = this->GetCurrentBinaryDirectory();
std::string cleanfile = cmStrCat(
currentBinDir, '/', this->GetTargetDirectory(target), "/cmake_clean");
if (filename) {
cleanfile += "_";
cleanfile += filename;
}
cleanfile += ".cmake";
cmsys::ofstream fout(cleanfile.c_str());
if (!fout) {
cmSystemTools::Error("Could not create " + cleanfile);
}
if (!files.empty()) {
fout << "file(REMOVE_RECURSE\n";
for (std::string const& file : files) {
std::string fc = this->MaybeRelativeToCurBinDir(file);
fout << " " << cmOutputConverter::EscapeForCMake(fc) << "\n";
}
fout << ")\n";
}
{
std::string remove = cmStrCat(
"$(CMAKE_COMMAND) -P ",
this->ConvertToOutputFormat(this->MaybeRelativeToCurBinDir(cleanfile),
cmOutputConverter::SHELL));
commands.push_back(std::move(remove));
}
// For the main clean rule add per-language cleaning.
if (!filename) {
// Get the set of source languages in the target.
std::set<std::string> languages;
target->GetLanguages(
languages, this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE"));
/* clang-format off */
fout << "\n"
<< "# Per-language clean rules from dependency scanning.\n"
<< "foreach(lang " << cmJoin(languages, " ") << ")\n"
<< " include(" << this->GetTargetDirectory(target)
<< "/cmake_clean_${lang}.cmake OPTIONAL)\n"
<< "endforeach()\n";
/* clang-format on */
}
}
void cmLocalUnixMakefileGenerator3::AppendDirectoryCleanCommand(
std::vector<std::string>& commands)
{
cmList cleanFiles;
// Look for additional files registered for cleaning in this directory.
if (cmValue prop_value =
this->Makefile->GetProperty("ADDITIONAL_CLEAN_FILES")) {
cleanFiles.assign(cmGeneratorExpression::Evaluate(
*prop_value, this,
this->Makefile->GetSafeDefinition("CMAKE_BUILD_TYPE")));
}
if (cleanFiles.empty()) {
return;
}
const auto& rootLG = this->GetGlobalGenerator()->GetLocalGenerators().at(0);
std::string const& currentBinaryDir = this->GetCurrentBinaryDirectory();
std::string cleanfile =
cmStrCat(currentBinaryDir, "/CMakeFiles/cmake_directory_clean.cmake");
// Write clean script
{
cmsys::ofstream fout(cleanfile.c_str());
if (!fout) {
cmSystemTools::Error("Could not create " + cleanfile);
return;
}
fout << "file(REMOVE_RECURSE\n";
for (std::string const& cfl : cleanFiles) {
std::string fc = rootLG->MaybeRelativeToCurBinDir(
cmSystemTools::CollapseFullPath(cfl, currentBinaryDir));
fout << " " << cmOutputConverter::EscapeForCMake(fc) << "\n";
}
fout << ")\n";
}
// Create command
{
std::string remove = cmStrCat(
"$(CMAKE_COMMAND) -P ",
this->ConvertToOutputFormat(rootLG->MaybeRelativeToCurBinDir(cleanfile),
cmOutputConverter::SHELL));
commands.push_back(std::move(remove));
}
}
void cmLocalUnixMakefileGenerator3::AppendEcho(
std::vector<std::string>& commands, std::string const& text, EchoColor color,
EchoProgress const* progress)
{
// Choose the color for the text.
std::string color_name;
if (this->GlobalGenerator->GetToolSupportsColor() && this->ColorMakefile) {
// See cmake::ExecuteEchoColor in cmake.cxx for these options.
// This color set is readable on both black and white backgrounds.
switch (color) {
case EchoNormal:
break;
case EchoDepend:
color_name = "--magenta --bold ";
break;
case EchoBuild:
color_name = "--green ";
break;
case EchoLink:
color_name = "--green --bold ";
break;
case EchoGenerate:
color_name = "--blue --bold ";
break;
case EchoGlobal:
color_name = "--cyan ";
break;
}
}
// Echo one line at a time.
std::string line;
line.reserve(200);
for (const char* c = text.c_str();; ++c) {
if (*c == '\n' || *c == '\0') {
// Avoid writing a blank last line on end-of-string.
if (*c != '\0' || !line.empty()) {
// Add a command to echo this line.
std::string cmd;
if (color_name.empty() && !progress) {
// Use the native echo command.
cmd = cmStrCat("@echo ", this->EscapeForShell(line, false, true));
} else {
// Use cmake to echo the text in color.
cmd = cmStrCat(
"@$(CMAKE_COMMAND) -E cmake_echo_color \"--switch=$(COLOR)\" ",
color_name);
if (progress) {
cmd += "--progress-dir=";
cmd += this->ConvertToOutputFormat(progress->Dir,
cmOutputConverter::SHELL);
cmd += " ";
cmd += "--progress-num=";
cmd += progress->Arg;
cmd += " ";
}
cmd += this->EscapeForShell(line);
}
commands.push_back(std::move(cmd));
}
// Reset the line to empty.
line.clear();
// Progress appears only on first line.
progress = nullptr;
// Terminate on end-of-string.
if (*c == '\0') {
return;
}
} else if (*c != '\r') {
// Append this character to the current line.
line += *c;
}
}
}
std::string cmLocalUnixMakefileGenerator3::CreateMakeVariable(
std::string const& s, std::string const& s2)
{
std::string unmodified = cmStrCat(s, s2);
// if there is no restriction on the length of make variables
// and there are no "." characters in the string, then return the
// unmodified combination.
if ((!this->MakefileVariableSize &&
unmodified.find('.') == std::string::npos) &&
(!this->MakefileVariableSize &&
unmodified.find('+') == std::string::npos) &&
(!this->MakefileVariableSize &&
unmodified.find('-') == std::string::npos)) {
return unmodified;
}
// see if the variable has been defined before and return
// the modified version of the variable
auto i = this->MakeVariableMap.find(unmodified);
if (i != this->MakeVariableMap.end()) {
return i->second;
}
// start with the unmodified variable
std::string ret = unmodified;
// if this there is no value for this->MakefileVariableSize then
// the string must have bad characters in it
if (!this->MakefileVariableSize) {
std::replace(ret.begin(), ret.end(), '.', '_');
cmSystemTools::ReplaceString(ret, "-", "__");
cmSystemTools::ReplaceString(ret, "+", "___");
int ni = 0;
char buffer[12];
// make sure the _ version is not already used, if
// it is used then add number to the end of the variable
while (this->ShortMakeVariableMap.count(ret) && ni < 1000) {
++ni;
snprintf(buffer, sizeof(buffer), "%04d", ni);
ret = unmodified + buffer;
}
this->ShortMakeVariableMap[ret] = "1";
this->MakeVariableMap[unmodified] = ret;
return ret;
}
// if the string is greater than 32 chars it is an invalid variable name
// for borland make
if (static_cast<int>(ret.size()) > this->MakefileVariableSize) {
int keep = this->MakefileVariableSize - 8;
int size = keep + 3;
std::string str1 = s;
std::string str2 = s2;
// we must shorten the combined string by 4 characters
// keep no more than 24 characters from the second string
if (static_cast<int>(str2.size()) > keep) {
str2 = str2.substr(0, keep);
}
if (static_cast<int>(str1.size()) + static_cast<int>(str2.size()) > size) {
str1 = str1.substr(0, size - str2.size());
}
char buffer[12];
int ni = 0;
snprintf(buffer, sizeof(buffer), "%04d", ni);
ret = str1 + str2 + buffer;
while (this->ShortMakeVariableMap.count(ret) && ni < 1000) {
++ni;
snprintf(buffer, sizeof(buffer), "%04d", ni);
ret = str1 + str2 + buffer;
}
if (ni == 1000) {
cmSystemTools::Error("Borland makefile variable length too long");
return unmodified;
}
// once an unused variable is found
this->ShortMakeVariableMap[ret] = "1";
}
// always make an entry into the unmodified to variable map
this->MakeVariableMap[unmodified] = ret;
return ret;
}
bool cmLocalUnixMakefileGenerator3::UpdateDependencies(
const std::string& tgtInfo, bool verbose, bool color)
{
// read in the target info file
if (!this->Makefile->ReadListFile(tgtInfo) ||
cmSystemTools::GetErrorOccurredFlag()) {
cmSystemTools::Error("Target DependInfo.cmake file not found");
}
bool status = true;
// Check if any multiple output pairs have a missing file.
this->CheckMultipleOutputs(verbose);
std::string const targetDir = cmSystemTools::GetFilenamePath(tgtInfo);
if (!this->Makefile->GetSafeDefinition("CMAKE_DEPENDS_LANGUAGES").empty()) {
// dependencies are managed by CMake itself
std::string const internalDependFile = targetDir + "/depend.internal";
std::string const dependFile = targetDir + "/depend.make";
// If the target DependInfo.cmake file has changed since the last
// time dependencies were scanned then force rescanning. This may
// happen when a new source file is added and CMake regenerates the
// project but no other sources were touched.
bool needRescanDependInfo = false;
cmFileTimeCache* ftc =
this->GlobalGenerator->GetCMakeInstance()->GetFileTimeCache();
{
int result;
if (!ftc->Compare(internalDependFile, tgtInfo, &result) || result < 0) {
if (verbose) {
cmSystemTools::Stdout(cmStrCat("Dependee \"", tgtInfo,
"\" is newer than depender \"",
internalDependFile, "\".\n"));
}
needRescanDependInfo = true;
}
}
// If the directory information is newer than depend.internal, include
// dirs may have changed. In this case discard all old dependencies.
bool needRescanDirInfo = false;
{
std::string dirInfoFile =
cmStrCat(this->GetCurrentBinaryDirectory(),
"/CMakeFiles/CMakeDirectoryInformation.cmake");
int result;
if (!ftc->Compare(internalDependFile, dirInfoFile, &result) ||
result < 0) {
if (verbose) {
cmSystemTools::Stdout(cmStrCat("Dependee \"", dirInfoFile,
"\" is newer than depender \"",
internalDependFile, "\".\n"));
}
needRescanDirInfo = true;
}
}
// Check the implicit dependencies to see if they are up to date.
// The build.make file may have explicit dependencies for the object
// files but these will not affect the scanning process so they need
// not be considered.
cmDepends::DependencyMap validDependencies;
bool needRescanDependencies = false;
if (!needRescanDirInfo) {
cmDependsC checker;
checker.SetVerbose(verbose);
checker.SetFileTimeCache(ftc);
// cmDependsC::Check() fills the vector validDependencies() with the
// dependencies for those files where they are still valid, i.e.
// neither the files themselves nor any files they depend on have
// changed. We don't do that if the CMakeDirectoryInformation.cmake
// file has changed, because then potentially all dependencies have
// changed. This information is given later on to cmDependsC, which
// then only rescans the files where it did not get valid dependencies
// via this dependency vector. This means that in the normal case, when
// only few or one file have been edited, then also only this one file
// is actually scanned again, instead of all files for this target.
needRescanDependencies =
!checker.Check(dependFile, internalDependFile, validDependencies);
}
if (needRescanDependInfo || needRescanDirInfo || needRescanDependencies) {
// The dependencies must be regenerated.
if (verbose) {
std::string targetName = cmSystemTools::GetFilenameName(targetDir);
targetName = targetName.substr(0, targetName.length() - 4);
std::string message =
cmStrCat("Scanning dependencies of target ", targetName);
cmSystemTools::MakefileColorEcho(
cmsysTerminal_Color_ForegroundMagenta |
cmsysTerminal_Color_ForegroundBold,
message.c_str(), true, color);
}
status = this->ScanDependencies(targetDir, dependFile,
internalDependFile, validDependencies);
}
}
auto depends =
this->Makefile->GetSafeDefinition("CMAKE_DEPENDS_DEPENDENCY_FILES");
if (!depends.empty()) {
// dependencies are managed by compiler
cmList depFiles{ depends, cmList::EmptyElements::Yes };
std::string const internalDepFile =
targetDir + "/compiler_depend.internal";
std::string const depFile = targetDir + "/compiler_depend.make";
cmDepends::DependencyMap dependencies;
cmDependsCompiler depsManager;
bool projectOnly = cmIsOn(
this->Makefile->GetSafeDefinition("CMAKE_DEPENDS_IN_PROJECT_ONLY"));
depsManager.SetVerbose(verbose);
depsManager.SetLocalGenerator(this);
if (!depsManager.CheckDependencies(
internalDepFile, depFiles, dependencies,
projectOnly ? NotInProjectDir(this->GetSourceDirectory(),
this->GetBinaryDirectory())
: std::function<bool(const std::string&)>())) {
// regenerate dependencies files
if (verbose) {
std::string targetName = cmCMakePath(targetDir)
.GetFileName()
.RemoveExtension()
.GenericString();
auto message =
cmStrCat("Consolidate compiler generated dependencies of target ",
targetName);
cmSystemTools::MakefileColorEcho(
cmsysTerminal_Color_ForegroundMagenta |
cmsysTerminal_Color_ForegroundBold,
message.c_str(), true, color);
}
// Open the make depends file. This should be copy-if-different
// because the make tool may try to reload it needlessly otherwise.
cmGeneratedFileStream ruleFileStream(
depFile, false, this->GlobalGenerator->GetMakefileEncoding());
ruleFileStream.SetCopyIfDifferent(true);
if (!ruleFileStream) {
return false;
}
// Open the cmake dependency tracking file. This should not be
// copy-if-different because dependencies are re-scanned when it is
// older than the DependInfo.cmake.
cmGeneratedFileStream internalRuleFileStream(
internalDepFile, false, this->GlobalGenerator->GetMakefileEncoding());
if (!internalRuleFileStream) {
return false;
}
this->WriteDisclaimer(ruleFileStream);
this->WriteDisclaimer(internalRuleFileStream);
depsManager.WriteDependencies(dependencies, ruleFileStream,
internalRuleFileStream);
}
}
// The dependencies are already up-to-date.
return status;
}
bool cmLocalUnixMakefileGenerator3::ScanDependencies(
std::string const& targetDir, std::string const& dependFile,
std::string const& internalDependFile, cmDepends::DependencyMap& validDeps)
{
// Read the directory information file.
cmMakefile* mf = this->Makefile;
bool haveDirectoryInfo = false;
{
std::string dirInfoFile =
cmStrCat(this->GetCurrentBinaryDirectory(),
"/CMakeFiles/CMakeDirectoryInformation.cmake");
if (mf->ReadListFile(dirInfoFile) &&
!cmSystemTools::GetErrorOccurredFlag()) {
haveDirectoryInfo = true;
}
}
// Lookup useful directory information.
if (haveDirectoryInfo) {
// Test whether we need to force Unix paths.
if (cmValue force = mf->GetDefinition("CMAKE_FORCE_UNIX_PATHS")) {
if (!force.IsOff()) {
cmSystemTools::SetForceUnixPaths(true);
}
}
// Setup relative path top directories.
cmValue relativePathTopSource =
mf->GetDefinition("CMAKE_RELATIVE_PATH_TOP_SOURCE");
cmValue relativePathTopBinary =
mf->GetDefinition("CMAKE_RELATIVE_PATH_TOP_BINARY");
if (relativePathTopSource && relativePathTopBinary) {
this->SetRelativePathTop(*relativePathTopSource, *relativePathTopBinary);
}
} else {
cmSystemTools::Error("Directory Information file not found");
}
// Open the make depends file. This should be copy-if-different
// because the make tool may try to reload it needlessly otherwise.
cmGeneratedFileStream ruleFileStream(
dependFile, false, this->GlobalGenerator->GetMakefileEncoding());
ruleFileStream.SetCopyIfDifferent(true);
if (!ruleFileStream) {
return false;
}
// Open the cmake dependency tracking file. This should not be
// copy-if-different because dependencies are re-scanned when it is
// older than the DependInfo.cmake.
cmGeneratedFileStream internalRuleFileStream(
internalDependFile, false, this->GlobalGenerator->GetMakefileEncoding());
if (!internalRuleFileStream) {
return false;
}
this->WriteDisclaimer(ruleFileStream);
this->WriteDisclaimer(internalRuleFileStream);
// for each language we need to scan, scan it
cmList langs{ mf->GetSafeDefinition("CMAKE_DEPENDS_LANGUAGES") };
for (std::string const& lang : langs) {
// construct the checker
// Create the scanner for this language
std::unique_ptr<cmDepends> scanner;
if (lang == "C" || lang == "CXX" || lang == "RC" || lang == "ASM" ||
lang == "OBJC" || lang == "OBJCXX" || lang == "CUDA" ||
lang == "HIP" || lang == "ISPC") {
// TODO: Handle RC (resource files) dependencies correctly.
scanner = cm::make_unique<cmDependsC>(this, targetDir, lang, &validDeps);
}
#ifndef CMAKE_BOOTSTRAP
else if (lang == "Fortran") {
ruleFileStream << "# Note that incremental build could trigger "
<< "a call to cmake_copy_f90_mod on each re-build\n";
scanner = cm::make_unique<cmDependsFortran>(this);
} else if (lang == "Java") {
scanner = cm::make_unique<cmDependsJava>();
}
#endif
if (scanner) {
scanner->SetLocalGenerator(this);
scanner->SetFileTimeCache(
this->GlobalGenerator->GetCMakeInstance()->GetFileTimeCache());
scanner->SetLanguage(lang);
scanner->SetTargetDirectory(targetDir);
scanner->Write(ruleFileStream, internalRuleFileStream);
}
}
return true;
}
void cmLocalUnixMakefileGenerator3::CheckMultipleOutputs(bool verbose)
{
cmMakefile* mf = this->Makefile;
// Get the string listing the multiple output pairs.
cmValue pairs_string = mf->GetDefinition("CMAKE_MULTIPLE_OUTPUT_PAIRS");
if (!pairs_string) {
return;
}
// Convert the string to a list and preserve empty entries.
cmList pairs{ *pairs_string, cmList::EmptyElements::Yes };
for (auto i = pairs.begin(); i != pairs.end() && (i + 1) != pairs.end();) {
const std::string& depender = *i++;
const std::string& dependee = *i++;
// If the depender is missing then delete the dependee to make
// sure both will be regenerated.
if (cmSystemTools::FileExists(dependee) &&
!cmSystemTools::FileExists(depender)) {
if (verbose) {
cmSystemTools::Stdout(cmStrCat(
"Deleting primary custom command output \"", dependee,
"\" because another output \"", depender, "\" does not exist.\n"));
}
cmSystemTools::RemoveFile(dependee);
}
}
}
void cmLocalUnixMakefileGenerator3::WriteLocalAllRules(
std::ostream& ruleFileStream)
{
this->WriteDisclaimer(ruleFileStream);
// Write the main entry point target. This must be the VERY first
// target so that make with no arguments will run it.
{
// Just depend on the all target to drive the build.
std::vector<std::string> depends;
std::vector<std::string> no_commands;
depends.emplace_back("all");
// Write the rule.
this->WriteMakeRule(ruleFileStream,
"Default target executed when no arguments are "
"given to make.",
"default_target", depends, no_commands, true);
// Help out users that try "gmake target1 target2 -j".
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
if (gg->AllowNotParallel()) {
std::vector<std::string> no_depends;
this->WriteMakeRule(ruleFileStream,
"Allow only one \"make -f "
"Makefile2\" at a time, but pass "
"parallelism.",
".NOTPARALLEL", no_depends, no_commands, false);
}
}
this->WriteSpecialTargetsTop(ruleFileStream);
// Include the progress variables for the target.
// Write all global targets
this->WriteDivider(ruleFileStream);
ruleFileStream << "# Targets provided globally by CMake.\n"
<< "\n";
const auto& targets = this->GetGeneratorTargets();
for (const auto& gt : targets) {
if (gt->GetType() == cmStateEnums::GLOBAL_TARGET) {
std::string targetString =
"Special rule for the target " + gt->GetName();
std::vector<std::string> commands;
std::vector<std::string> depends;
cmValue p = gt->GetProperty("EchoString");
const char* text = p ? p->c_str() : "Running external command ...";
depends.reserve(gt->GetUtilities().size());
for (BT<std::pair<std::string, bool>> const& u : gt->GetUtilities()) {
depends.push_back(u.Value.first);
}
this->AppendEcho(commands, text,
cmLocalUnixMakefileGenerator3::EchoGlobal);
// Global targets store their rules in pre- and post-build commands.
this->AppendCustomDepends(depends, gt->GetPreBuildCommands());
this->AppendCustomDepends(depends, gt->GetPostBuildCommands());
this->AppendCustomCommands(commands, gt->GetPreBuildCommands(), gt.get(),
this->GetCurrentBinaryDirectory());
this->AppendCustomCommands(commands, gt->GetPostBuildCommands(),
gt.get(), this->GetCurrentBinaryDirectory());
std::string targetName = gt->GetName();
this->WriteMakeRule(ruleFileStream, targetString.c_str(), targetName,
depends, commands, true);
// Provide a "/fast" version of the target.
depends.clear();
if ((targetName == "install") || (targetName == "install/local") ||
(targetName == "install/strip")) {
// Provide a fast install target that does not depend on all
// but has the same command.
depends.emplace_back("preinstall/fast");
} else {
// Just forward to the real target so at least it will work.
depends.push_back(targetName);
commands.clear();
}
targetName += "/fast";
this->WriteMakeRule(ruleFileStream, targetString.c_str(), targetName,
depends, commands, true);
}
}
std::vector<std::string> depends;
std::vector<std::string> commands;
// Write the all rule.
std::string recursiveTarget =
cmStrCat(this->GetCurrentBinaryDirectory(), "/all");
bool regenerate =
!this->GlobalGenerator->GlobalSettingIsOn("CMAKE_SUPPRESS_REGENERATION");
if (regenerate) {
depends.emplace_back("cmake_check_build_system");
}
std::string progressDir =
cmStrCat(this->GetBinaryDirectory(), "/CMakeFiles");
{
std::ostringstream progCmd;
progCmd << "$(CMAKE_COMMAND) -E cmake_progress_start ";
progCmd << this->ConvertToOutputFormat(progressDir,
cmOutputConverter::SHELL);
std::string progressFile = "/CMakeFiles/progress.marks";
std::string progressFileNameFull = this->ConvertToFullPath(progressFile);
progCmd << " "
<< this->ConvertToOutputFormat(progressFileNameFull,
cmOutputConverter::SHELL);
commands.push_back(progCmd.str());
}
std::string mf2Dir = "CMakeFiles/Makefile2";
commands.push_back(this->GetRecursiveMakeCall(mf2Dir, recursiveTarget));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
{
std::ostringstream progCmd;
progCmd << "$(CMAKE_COMMAND) -E cmake_progress_start "; // # 0
progCmd << this->ConvertToOutputFormat(progressDir,
cmOutputConverter::SHELL);
progCmd << " 0";
commands.push_back(progCmd.str());
}
this->WriteMakeRule(ruleFileStream, "The main all target", "all", depends,
commands, true);
// Write the clean rule.
recursiveTarget = cmStrCat(this->GetCurrentBinaryDirectory(), "/clean");
commands.clear();
depends.clear();
commands.push_back(this->GetRecursiveMakeCall(mf2Dir, recursiveTarget));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream, "The main clean target", "clean",
depends, commands, true);
commands.clear();
depends.clear();
depends.emplace_back("clean");
this->WriteMakeRule(ruleFileStream, "The main clean target", "clean/fast",
depends, commands, true);
// Write the preinstall rule.
recursiveTarget = cmStrCat(this->GetCurrentBinaryDirectory(), "/preinstall");
commands.clear();
depends.clear();
cmValue noall =
this->Makefile->GetDefinition("CMAKE_SKIP_INSTALL_ALL_DEPENDENCY");
if (noall.IsOff()) {
// Drive the build before installing.
depends.emplace_back("all");
} else if (regenerate) {
// At least make sure the build system is up to date.
depends.emplace_back("cmake_check_build_system");
}
commands.push_back(this->GetRecursiveMakeCall(mf2Dir, recursiveTarget));
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream, "Prepare targets for installation.",
"preinstall", depends, commands, true);
depends.clear();
this->WriteMakeRule(ruleFileStream, "Prepare targets for installation.",
"preinstall/fast", depends, commands, true);
if (regenerate) {
// write the depend rule, really a recompute depends rule
depends.clear();
commands.clear();
cmake* cm = this->GlobalGenerator->GetCMakeInstance();
if (cm->DoWriteGlobVerifyTarget()) {
std::string rescanRule =
cmStrCat("$(CMAKE_COMMAND) -P ",
this->ConvertToOutputFormat(cm->GetGlobVerifyScript(),
cmOutputConverter::SHELL));
commands.push_back(rescanRule);
}
std::string cmakefileName = "CMakeFiles/Makefile.cmake";
{
std::string runRule = cmStrCat(
"$(CMAKE_COMMAND) -S$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR) ",
cm->GetIgnoreWarningAsError() ? "--compile-no-warning-as-error " : "",
"--check-build-system ",
this->ConvertToOutputFormat(cmakefileName, cmOutputConverter::SHELL),
" 1");
commands.push_back(std::move(runRule));
}
this->CreateCDCommand(commands, this->GetBinaryDirectory(),
this->GetCurrentBinaryDirectory());
this->WriteMakeRule(ruleFileStream, "clear depends", "depend", depends,
commands, true);
}
}
void cmLocalUnixMakefileGenerator3::ClearDependencies(cmMakefile* mf,
bool verbose)
{
// Get the list of target files to check
cmValue infoDef = mf->GetDefinition("CMAKE_DEPEND_INFO_FILES");
if (!infoDef) {
return;
}
cmList files{ *infoDef };
// Each depend information file corresponds to a target. Clear the
// dependencies for that target.
cmDepends clearer;
clearer.SetVerbose(verbose);
for (std::string const& file : files) {
auto snapshot = mf->GetState()->CreateBaseSnapshot();
cmMakefile lmf(mf->GetGlobalGenerator(), snapshot);
lmf.ReadListFile(file);
if (!lmf.GetSafeDefinition("CMAKE_DEPENDS_LANGUAGES").empty()) {
std::string dir = cmSystemTools::GetFilenamePath(file);
// Clear the implicit dependency makefile.
std::string dependFile = dir + "/depend.make";
clearer.Clear(dependFile);
// Remove the internal dependency check file to force
// regeneration.
std::string internalDependFile = dir + "/depend.internal";
cmSystemTools::RemoveFile(internalDependFile);
}
auto depsFiles = lmf.GetSafeDefinition("CMAKE_DEPENDS_DEPENDENCY_FILES");
if (!depsFiles.empty()) {
auto dir = cmCMakePath(file).GetParentPath();
// Clear the implicit dependency makefile.
auto depFile = cmCMakePath(dir).Append("compiler_depend.make");
clearer.Clear(depFile.GenericString());
// Remove the internal dependency check file
auto internalDepFile =
cmCMakePath(dir).Append("compiler_depend.internal");
cmSystemTools::RemoveFile(internalDepFile.GenericString());
// Touch timestamp file to force dependencies regeneration
auto DepTimestamp = cmCMakePath(dir).Append("compiler_depend.ts");
cmSystemTools::Touch(DepTimestamp.GenericString(), true);
// clear the dependencies files generated by the compiler
cmList dependencies{ depsFiles, cmList::EmptyElements::Yes };
cmDependsCompiler depsManager;
depsManager.SetVerbose(verbose);
depsManager.ClearDependencies(dependencies);
}
}
}
void cmLocalUnixMakefileGenerator3::WriteDependLanguageInfo(
std::ostream& cmakefileStream, cmGeneratorTarget* target)
{
// To enable dependencies filtering
cmakefileStream << "\n"
<< "# Consider dependencies only in project.\n"
<< "set(CMAKE_DEPENDS_IN_PROJECT_ONLY "
<< (cmIsOn(this->Makefile->GetSafeDefinition(
"CMAKE_DEPENDS_IN_PROJECT_ONLY"))
? "ON"
: "OFF")
<< ")\n\n";
bool requireFortran = false;
if (target->HaveFortranSources(this->GetConfigName())) {
requireFortran = true;
}
auto const& implicitLangs =
this->GetImplicitDepends(target, cmDependencyScannerKind::CMake);
// list the languages
cmakefileStream << "# The set of languages for which implicit "
"dependencies are needed:\n";
cmakefileStream << "set(CMAKE_DEPENDS_LANGUAGES\n";
for (auto const& implicitLang : implicitLangs) {
cmakefileStream << " \"" << implicitLang.first << "\"\n";
if (requireFortran && implicitLang.first == "Fortran"_s) {
requireFortran = false;
}
}
if (requireFortran) {
cmakefileStream << " \"Fortran\"\n";
}
cmakefileStream << " )\n";
if (!implicitLangs.empty()) {
// now list the files for each language
cmakefileStream
<< "# The set of files for implicit dependencies of each language:\n";
for (auto const& implicitLang : implicitLangs) {
const auto& lang = implicitLang.first;
cmakefileStream << "set(CMAKE_DEPENDS_CHECK_" << lang << "\n";
auto const& implicitPairs = implicitLang.second;
// for each file pair
for (auto const& implicitPair : implicitPairs) {
for (auto const& di : implicitPair.second) {
cmakefileStream << " \"" << di << "\" ";
cmakefileStream << "\"" << implicitPair.first << "\"\n";
}
}
cmakefileStream << " )\n";
// Tell the dependency scanner what compiler is used.
std::string cidVar = cmStrCat("CMAKE_", lang, "_COMPILER_ID");
cmValue cid = this->Makefile->GetDefinition(cidVar);
if (cmNonempty(cid)) {
cmakefileStream << "set(CMAKE_" << lang << "_COMPILER_ID \"" << *cid
<< "\")\n";
}
if (lang == "Fortran") {
std::string smodSep =
this->Makefile->GetSafeDefinition("CMAKE_Fortran_SUBMODULE_SEP");
std::string smodExt =
this->Makefile->GetSafeDefinition("CMAKE_Fortran_SUBMODULE_EXT");
cmakefileStream << "set(CMAKE_Fortran_SUBMODULE_SEP \"" << smodSep
<< "\")\n";
cmakefileStream << "set(CMAKE_Fortran_SUBMODULE_EXT \"" << smodExt
<< "\")\n";
}
// Build a list of preprocessor definitions for the target.
std::set<std::string> defines;
this->GetTargetDefines(target, this->GetConfigName(), lang, defines);
if (!defines.empty()) {
/* clang-format off */
cmakefileStream
<< "\n"
<< "# Preprocessor definitions for this target.\n"
<< "set(CMAKE_TARGET_DEFINITIONS_" << lang << "\n";
/* clang-format on */
for (std::string const& define : defines) {
cmakefileStream << " " << cmOutputConverter::EscapeForCMake(define)
<< "\n";
}
cmakefileStream << " )\n";
}
// Target-specific include directories:
cmakefileStream << "\n"
<< "# The include file search paths:\n";
cmakefileStream << "set(CMAKE_" << lang << "_TARGET_INCLUDE_PATH\n";
std::vector<std::string> includes;
this->GetIncludeDirectories(includes, target, lang,
this->GetConfigName());
std::string const& binaryDir = this->GetState()->GetBinaryDirectory();
if (this->Makefile->IsOn("CMAKE_DEPENDS_IN_PROJECT_ONLY")) {
std::string const& sourceDir = this->GetState()->GetSourceDirectory();
cm::erase_if(includes, ::NotInProjectDir(sourceDir, binaryDir));
}
for (std::string const& include : includes) {
cmakefileStream << " \"" << this->MaybeRelativeToTopBinDir(include)
<< "\"\n";
}
cmakefileStream << " )\n";
}
// Store include transform rule properties. Write the directory
// rules first because they may be overridden by later target rules.
cmList transformRules;
if (cmValue xform =
this->Makefile->GetProperty("IMPLICIT_DEPENDS_INCLUDE_TRANSFORM")) {
transformRules.assign(*xform);
}
if (cmValue xform =
target->GetProperty("IMPLICIT_DEPENDS_INCLUDE_TRANSFORM")) {
transformRules.append(*xform);
}
if (!transformRules.empty()) {
cmakefileStream << "\nset(CMAKE_INCLUDE_TRANSFORMS\n";
for (std::string const& tr : transformRules) {
cmakefileStream << " " << cmOutputConverter::EscapeForCMake(tr)
<< "\n";
}
cmakefileStream << " )\n";
}
}
auto const& compilerLangs =
this->GetImplicitDepends(target, cmDependencyScannerKind::Compiler);
// list the dependency files managed by the compiler
cmakefileStream << "\n# The set of dependency files which are needed:\n";
cmakefileStream << "set(CMAKE_DEPENDS_DEPENDENCY_FILES\n";
for (auto const& compilerLang : compilerLangs) {
auto const& compilerPairs = compilerLang.second;
if (compilerLang.first == "CUSTOM"_s) {
for (auto const& compilerPair : compilerPairs) {
for (auto const& src : compilerPair.second) {
cmakefileStream << R"( "" ")"
<< this->MaybeRelativeToTopBinDir(compilerPair.first)
<< R"(" "custom" ")"
<< this->MaybeRelativeToTopBinDir(src) << "\"\n";
}
}
} else if (compilerLang.first == "LINK"_s) {
auto depFormat = this->Makefile->GetDefinition(
cmStrCat("CMAKE_", target->GetLinkerLanguage(this->GetConfigName()),
"_LINKER_DEPFILE_FORMAT"));
for (auto const& compilerPair : compilerPairs) {
for (auto const& src : compilerPair.second) {
cmakefileStream << R"( "" ")"
<< this->MaybeRelativeToTopBinDir(compilerPair.first)
<< "\" \"" << depFormat << "\" \""
<< this->MaybeRelativeToTopBinDir(src) << "\"\n";
}
}
} else {
auto depFormat = this->Makefile->GetSafeDefinition(
cmStrCat("CMAKE_", compilerLang.first, "_DEPFILE_FORMAT"));
for (auto const& compilerPair : compilerPairs) {
for (auto const& src : compilerPair.second) {
cmakefileStream << " \"" << src << "\" \""
<< this->MaybeRelativeToTopBinDir(compilerPair.first)
<< "\" \"" << depFormat << "\" \""
<< this->MaybeRelativeToTopBinDir(compilerPair.first)
<< ".d\"\n";
}
}
}
}
cmakefileStream << " )\n";
}
void cmLocalUnixMakefileGenerator3::WriteDisclaimer(std::ostream& os)
{
os << "# CMAKE generated file: DO NOT EDIT!\n"
<< "# Generated by \"" << this->GlobalGenerator->GetName() << "\""
<< " Generator, CMake Version " << cmVersion::GetMajorVersion() << "."
<< cmVersion::GetMinorVersion() << "\n\n";
}
std::string cmLocalUnixMakefileGenerator3::GetRecursiveMakeCall(
const std::string& makefile, const std::string& tgt)
{
// Call make on the given file.
std::string cmd = cmStrCat(
"$(MAKE) $(MAKESILENT) -f ",
this->ConvertToOutputFormat(makefile, cmOutputConverter::SHELL), ' ');
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
// Pass down verbosity level.
if (!gg->MakeSilentFlag.empty()) {
cmd += gg->MakeSilentFlag;
cmd += " ";
}
// Most unix makes will pass the command line flags to make down to
// sub-invoked makes via an environment variable. However, some
// makes do not support that, so you have to pass the flags
// explicitly.
if (gg->PassMakeflags) {
cmd += "-$(MAKEFLAGS) ";
}
// Add the target.
if (!tgt.empty()) {
// The make target is always relative to the top of the build tree.
std::string tgt2 = this->MaybeRelativeToTopBinDir(tgt);
// The target may have been written with windows paths.
cmSystemTools::ConvertToOutputSlashes(tgt2);
// Escape one extra time if the make tool requires it.
if (this->MakeCommandEscapeTargetTwice) {
tgt2 = this->EscapeForShell(tgt2, true, false);
}
// The target name is now a string that should be passed verbatim
// on the command line.
cmd += this->EscapeForShell(tgt2, true, false);
}
return cmd;
}
void cmLocalUnixMakefileGenerator3::WriteDivider(std::ostream& os)
{
os << "#======================================"
"=======================================\n";
}
void cmLocalUnixMakefileGenerator3::WriteCMakeArgument(std::ostream& os,
const std::string& s)
{
// Write the given string to the stream with escaping to get it back
// into CMake through the lexical scanner.
os << '"';
for (char c : s) {
if (c == '\\') {
os << "\\\\";
} else if (c == '"') {
os << "\\\"";
} else {
os << c;
}
}
os << '"';
}
std::string cmLocalUnixMakefileGenerator3::ConvertToQuotedOutputPath(
const std::string& p, bool useWatcomQuote)
{
// Split the path into its components.
std::vector<std::string> components;
cmSystemTools::SplitPath(p, components);
// Open the quoted result.
std::string result;
if (useWatcomQuote) {
#if defined(_WIN32) && !defined(__CYGWIN__)
result = "'";
#else
result = "\"'";
#endif
} else {
result = "\"";
}
// Return an empty path if there are no components.
if (!components.empty()) {
// Choose a slash direction and fix root component.
const char* slash = "/";
#if defined(_WIN32) && !defined(__CYGWIN__)
if (!cmSystemTools::GetForceUnixPaths()) {
slash = "\\";
for (char& i : components[0]) {
if (i == '/') {
i = '\\';
}
}
}
#endif
// Begin the quoted result with the root component.
result += components[0];
if (components.size() > 1) {
// Now add the rest of the components separated by the proper slash
// direction for this platform.
auto compEnd = std::remove(components.begin() + 1, components.end() - 1,
std::string());
auto compStart = components.begin() + 1;
result += cmJoin(cmMakeRange(compStart, compEnd), slash);
// Only the last component can be empty to avoid double slashes.
result += slash;
result += components.back();
}
}
// Close the quoted result.
if (useWatcomQuote) {
#if defined(_WIN32) && !defined(__CYGWIN__)
result += "'";
#else
result += "'\"";
#endif
} else {
result += "\"";
}
return result;
}
std::string cmLocalUnixMakefileGenerator3::GetTargetDirectory(
cmGeneratorTarget const* target) const
{
std::string dir = cmStrCat("CMakeFiles/", target->GetName());
#if defined(__VMS)
dir += "_dir";
#else
dir += ".dir";
#endif
return dir;
}
cmLocalUnixMakefileGenerator3::ImplicitDependLanguageMap const&
cmLocalUnixMakefileGenerator3::GetImplicitDepends(
const cmGeneratorTarget* tgt, cmDependencyScannerKind scanner)
{
return this->ImplicitDepends[tgt->GetName()][scanner];
}
void cmLocalUnixMakefileGenerator3::AddImplicitDepends(
const cmGeneratorTarget* tgt, const std::string& lang,
const std::string& obj, const std::string& src,
cmDependencyScannerKind scanner)
{
this->ImplicitDepends[tgt->GetName()][scanner][lang][obj].push_back(src);
}
void cmLocalUnixMakefileGenerator3::CreateCDCommand(
std::vector<std::string>& commands, std::string const& tgtDir,
std::string const& relDir)
{
// do we need to cd?
if (tgtDir == relDir) {
return;
}
// In a Windows shell we must change drive letter too. The shell
// used by NMake and Borland make does not support "cd /d" so this
// feature simply cannot work with them (Borland make does not even
// support changing the drive letter with just "d:").
const char* cd_cmd = this->IsMinGWMake() ? "cd /d " : "cd ";
cmGlobalUnixMakefileGenerator3* gg =
static_cast<cmGlobalUnixMakefileGenerator3*>(this->GlobalGenerator);
if (!gg->UnixCD) {
// On Windows we must perform each step separately and then change
// back because the shell keeps the working directory between
// commands.
std::string cmd =
cmStrCat(cd_cmd, this->ConvertToOutputForExisting(tgtDir));
commands.insert(commands.begin(), cmd);
// Change back to the starting directory.
cmd = cmStrCat(cd_cmd, this->ConvertToOutputForExisting(relDir));
commands.push_back(std::move(cmd));
} else {
// On UNIX we must construct a single shell command to change
// directory and build because make resets the directory between
// each command.
std::string outputForExisting = this->ConvertToOutputForExisting(tgtDir);
std::string prefix = cd_cmd + outputForExisting + " && ";
std::transform(commands.begin(), commands.end(), commands.begin(),
[&prefix](std::string const& s) { return prefix + s; });
}
}