CMake/Source/cmNinjaNormalTargetGenerator.cxx
Brad King 8772fc81c4 Merge topic 'ipo-policy-CMP0069'
dfa8263f Implement interprocedural optimization for GNU compilers
1588a577 Add policy CMP0069 to enforce INTERPROCEDURAL_OPTIMIZATION
a7575700 Refactoring: s,GetFeatureAsBool,IsIPOEnabled,
e05835c3 CheckIPOSupported: Visual Studio and Xcode generators do not support IPO

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Brad King <brad.king@kitware.com>
Reviewed-by: Nils Gladitz <nilsgladitz@gmail.com>
Merge-request: !568
2017-03-31 10:38:08 -04:00

1131 lines
40 KiB
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmNinjaNormalTargetGenerator.h"
#include <algorithm>
#include <assert.h>
#include <iterator>
#include <limits>
#include <map>
#include <set>
#include <sstream>
#include <stddef.h>
#include "cmAlgorithms.h"
#include "cmCustomCommand.h"
#include "cmCustomCommandGenerator.h"
#include "cmGeneratedFileStream.h"
#include "cmGeneratorTarget.h"
#include "cmGlobalNinjaGenerator.h"
#include "cmLinkLineComputer.h"
#include "cmLinkLineDeviceComputer.h"
#include "cmLocalGenerator.h"
#include "cmLocalNinjaGenerator.h"
#include "cmMakefile.h"
#include "cmNinjaTypes.h"
#include "cmOSXBundleGenerator.h"
#include "cmOutputConverter.h"
#include "cmRulePlaceholderExpander.h"
#include "cmSourceFile.h"
#include "cmState.h"
#include "cmStateDirectory.h"
#include "cmStateSnapshot.h"
#include "cmStateTypes.h"
#include "cmSystemTools.h"
#include "cm_auto_ptr.hxx"
#include "cmake.h"
#ifndef _WIN32
#include <unistd.h>
#endif
cmNinjaNormalTargetGenerator::cmNinjaNormalTargetGenerator(
cmGeneratorTarget* target)
: cmNinjaTargetGenerator(target)
, TargetNameOut()
, TargetNameSO()
, TargetNameReal()
, TargetNameImport()
, TargetNamePDB()
, TargetLinkLanguage("")
, DeviceLinkObject()
{
this->TargetLinkLanguage = target->GetLinkerLanguage(this->GetConfigName());
if (target->GetType() == cmStateEnums::EXECUTABLE) {
this->GetGeneratorTarget()->GetExecutableNames(
this->TargetNameOut, this->TargetNameReal, this->TargetNameImport,
this->TargetNamePDB, GetLocalGenerator()->GetConfigName());
} else {
this->GetGeneratorTarget()->GetLibraryNames(
this->TargetNameOut, this->TargetNameSO, this->TargetNameReal,
this->TargetNameImport, this->TargetNamePDB,
GetLocalGenerator()->GetConfigName());
}
if (target->GetType() != cmStateEnums::OBJECT_LIBRARY) {
// on Windows the output dir is already needed at compile time
// ensure the directory exists (OutDir test)
EnsureDirectoryExists(target->GetDirectory(this->GetConfigName()));
}
this->OSXBundleGenerator =
new cmOSXBundleGenerator(target, this->GetConfigName());
this->OSXBundleGenerator->SetMacContentFolders(&this->MacContentFolders);
}
cmNinjaNormalTargetGenerator::~cmNinjaNormalTargetGenerator()
{
delete this->OSXBundleGenerator;
}
void cmNinjaNormalTargetGenerator::Generate()
{
if (this->TargetLinkLanguage.empty()) {
cmSystemTools::Error("CMake can not determine linker language for "
"target: ",
this->GetGeneratorTarget()->GetName().c_str());
return;
}
// Write the rules for each language.
this->WriteLanguagesRules();
// Write the build statements
this->WriteObjectBuildStatements();
if (this->GetGeneratorTarget()->GetType() == cmStateEnums::OBJECT_LIBRARY) {
this->WriteObjectLibStatement();
} else {
// If this target has cuda language link inputs, and we need to do
// device linking
this->WriteDeviceLinkStatement();
this->WriteLinkStatement();
}
}
void cmNinjaNormalTargetGenerator::WriteLanguagesRules()
{
#ifdef NINJA_GEN_VERBOSE_FILES
cmGlobalNinjaGenerator::WriteDivider(this->GetRulesFileStream());
this->GetRulesFileStream()
<< "# Rules for each languages for "
<< cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType())
<< " target " << this->GetTargetName() << "\n\n";
#endif
// Write rules for languages compiled in this target.
std::set<std::string> languages;
std::vector<cmSourceFile const*> sourceFiles;
this->GetGeneratorTarget()->GetObjectSources(
sourceFiles, this->GetMakefile()->GetSafeDefinition("CMAKE_BUILD_TYPE"));
for (std::vector<cmSourceFile const*>::const_iterator i =
sourceFiles.begin();
i != sourceFiles.end(); ++i) {
const std::string& lang = (*i)->GetLanguage();
if (!lang.empty()) {
languages.insert(lang);
}
}
for (std::set<std::string>::const_iterator l = languages.begin();
l != languages.end(); ++l) {
this->WriteLanguageRules(*l);
}
}
const char* cmNinjaNormalTargetGenerator::GetVisibleTypeName() const
{
switch (this->GetGeneratorTarget()->GetType()) {
case cmStateEnums::STATIC_LIBRARY:
return "static library";
case cmStateEnums::SHARED_LIBRARY:
return "shared library";
case cmStateEnums::MODULE_LIBRARY:
if (this->GetGeneratorTarget()->IsCFBundleOnApple()) {
return "CFBundle shared module";
} else {
return "shared module";
}
case cmStateEnums::EXECUTABLE:
return "executable";
default:
return CM_NULLPTR;
}
}
std::string cmNinjaNormalTargetGenerator::LanguageLinkerRule() const
{
return this->TargetLinkLanguage + "_" +
cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType()) +
"_LINKER__" + cmGlobalNinjaGenerator::EncodeRuleName(
this->GetGeneratorTarget()->GetName());
}
std::string cmNinjaNormalTargetGenerator::LanguageLinkerDeviceRule() const
{
return this->TargetLinkLanguage + "_" +
cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType()) +
"_DEVICE_LINKER__" + cmGlobalNinjaGenerator::EncodeRuleName(
this->GetGeneratorTarget()->GetName());
}
struct cmNinjaRemoveNoOpCommands
{
bool operator()(std::string const& cmd)
{
return cmd.empty() || cmd[0] == ':';
}
};
void cmNinjaNormalTargetGenerator::WriteDeviceLinkRule(bool useResponseFile)
{
cmStateEnums::TargetType targetType = this->GetGeneratorTarget()->GetType();
std::string ruleName = this->LanguageLinkerDeviceRule();
// Select whether to use a response file for objects.
std::string rspfile;
std::string rspcontent;
if (!this->GetGlobalGenerator()->HasRule(ruleName)) {
cmRulePlaceholderExpander::RuleVariables vars;
vars.CMTargetName = this->GetGeneratorTarget()->GetName().c_str();
vars.CMTargetType =
cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType());
vars.Language = "CUDA";
std::string responseFlag;
if (!useResponseFile) {
vars.Objects = "$in";
vars.LinkLibraries = "$LINK_LIBRARIES";
} else {
std::string cmakeVarLang = "CMAKE_";
cmakeVarLang += this->TargetLinkLanguage;
// build response file name
std::string cmakeLinkVar = cmakeVarLang + "_RESPONSE_FILE_LINK_FLAG";
const char* flag = GetMakefile()->GetDefinition(cmakeLinkVar);
if (flag) {
responseFlag = flag;
} else {
responseFlag = "@";
}
rspfile = "$RSP_FILE";
responseFlag += rspfile;
// build response file content
if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
rspcontent = "$in";
} else {
rspcontent = "$in_newline";
}
rspcontent += " $LINK_LIBRARIES";
vars.Objects = responseFlag.c_str();
vars.LinkLibraries = "";
}
vars.ObjectDir = "$OBJECT_DIR";
vars.Target = "$TARGET_FILE";
vars.SONameFlag = "$SONAME_FLAG";
vars.TargetSOName = "$SONAME";
vars.TargetPDB = "$TARGET_PDB";
vars.TargetCompilePDB = "$TARGET_COMPILE_PDB";
vars.Flags = "$FLAGS";
vars.LinkFlags = "$LINK_FLAGS";
vars.Manifests = "$MANIFESTS";
std::string langFlags;
if (targetType != cmStateEnums::EXECUTABLE) {
langFlags += "$LANGUAGE_COMPILE_FLAGS $ARCH_FLAGS";
vars.LanguageCompileFlags = langFlags.c_str();
}
std::string launcher;
const char* val = this->GetLocalGenerator()->GetRuleLauncher(
this->GetGeneratorTarget(), "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
CM_AUTO_PTR<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->GetLocalGenerator()->CreateRulePlaceholderExpander());
// Rule for linking library/executable.
std::vector<std::string> linkCmds = this->ComputeDeviceLinkCmd();
for (std::vector<std::string>::iterator i = linkCmds.begin();
i != linkCmds.end(); ++i) {
*i = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->GetLocalGenerator(),
*i, vars);
}
// If there is no ranlib the command will be ":". Skip it.
cmEraseIf(linkCmds, cmNinjaRemoveNoOpCommands());
std::string linkCmd =
this->GetLocalGenerator()->BuildCommandLine(linkCmds);
// Write the linker rule with response file if needed.
std::ostringstream comment;
comment << "Rule for linking " << this->TargetLinkLanguage << " "
<< this->GetVisibleTypeName() << ".";
std::ostringstream description;
description << "Linking " << this->TargetLinkLanguage << " "
<< this->GetVisibleTypeName() << " $TARGET_FILE";
this->GetGlobalGenerator()->AddRule(ruleName, linkCmd, description.str(),
comment.str(),
/*depfile*/ "",
/*deptype*/ "", rspfile, rspcontent,
/*restat*/ "$RESTAT",
/*generator*/ false);
}
}
void cmNinjaNormalTargetGenerator::WriteLinkRule(bool useResponseFile)
{
cmStateEnums::TargetType targetType = this->GetGeneratorTarget()->GetType();
std::string ruleName = this->LanguageLinkerRule();
// Select whether to use a response file for objects.
std::string rspfile;
std::string rspcontent;
if (!this->GetGlobalGenerator()->HasRule(ruleName)) {
cmRulePlaceholderExpander::RuleVariables vars;
vars.CMTargetName = this->GetGeneratorTarget()->GetName().c_str();
vars.CMTargetType =
cmState::GetTargetTypeName(this->GetGeneratorTarget()->GetType());
vars.Language = this->TargetLinkLanguage.c_str();
std::string responseFlag;
if (!useResponseFile) {
vars.Objects = "$in";
vars.LinkLibraries = "$LINK_PATH $LINK_LIBRARIES";
} else {
std::string cmakeVarLang = "CMAKE_";
cmakeVarLang += this->TargetLinkLanguage;
// build response file name
std::string cmakeLinkVar = cmakeVarLang + "_RESPONSE_FILE_LINK_FLAG";
const char* flag = GetMakefile()->GetDefinition(cmakeLinkVar);
if (flag) {
responseFlag = flag;
} else {
responseFlag = "@";
}
rspfile = "$RSP_FILE";
responseFlag += rspfile;
// build response file content
if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
rspcontent = "$in";
} else {
rspcontent = "$in_newline";
}
rspcontent += " $LINK_PATH $LINK_LIBRARIES";
vars.Objects = responseFlag.c_str();
vars.LinkLibraries = "";
}
vars.ObjectDir = "$OBJECT_DIR";
vars.Target = "$TARGET_FILE";
vars.SONameFlag = "$SONAME_FLAG";
vars.TargetSOName = "$SONAME";
vars.TargetInstallNameDir = "$INSTALLNAME_DIR";
vars.TargetPDB = "$TARGET_PDB";
// Setup the target version.
std::string targetVersionMajor;
std::string targetVersionMinor;
{
std::ostringstream majorStream;
std::ostringstream minorStream;
int major;
int minor;
this->GetGeneratorTarget()->GetTargetVersion(major, minor);
majorStream << major;
minorStream << minor;
targetVersionMajor = majorStream.str();
targetVersionMinor = minorStream.str();
}
vars.TargetVersionMajor = targetVersionMajor.c_str();
vars.TargetVersionMinor = targetVersionMinor.c_str();
vars.Flags = "$FLAGS";
vars.LinkFlags = "$LINK_FLAGS";
vars.Manifests = "$MANIFESTS";
std::string langFlags;
if (targetType != cmStateEnums::EXECUTABLE) {
langFlags += "$LANGUAGE_COMPILE_FLAGS $ARCH_FLAGS";
vars.LanguageCompileFlags = langFlags.c_str();
}
std::string launcher;
const char* val = this->GetLocalGenerator()->GetRuleLauncher(
this->GetGeneratorTarget(), "RULE_LAUNCH_LINK");
if (val && *val) {
launcher = val;
launcher += " ";
}
CM_AUTO_PTR<cmRulePlaceholderExpander> rulePlaceholderExpander(
this->GetLocalGenerator()->CreateRulePlaceholderExpander());
// Rule for linking library/executable.
std::vector<std::string> linkCmds = this->ComputeLinkCmd();
for (std::vector<std::string>::iterator i = linkCmds.begin();
i != linkCmds.end(); ++i) {
*i = launcher + *i;
rulePlaceholderExpander->ExpandRuleVariables(this->GetLocalGenerator(),
*i, vars);
}
// If there is no ranlib the command will be ":". Skip it.
cmEraseIf(linkCmds, cmNinjaRemoveNoOpCommands());
linkCmds.insert(linkCmds.begin(), "$PRE_LINK");
linkCmds.push_back("$POST_BUILD");
std::string linkCmd =
this->GetLocalGenerator()->BuildCommandLine(linkCmds);
// Write the linker rule with response file if needed.
std::ostringstream comment;
comment << "Rule for linking " << this->TargetLinkLanguage << " "
<< this->GetVisibleTypeName() << ".";
std::ostringstream description;
description << "Linking " << this->TargetLinkLanguage << " "
<< this->GetVisibleTypeName() << " $TARGET_FILE";
this->GetGlobalGenerator()->AddRule(ruleName, linkCmd, description.str(),
comment.str(),
/*depfile*/ "",
/*deptype*/ "", rspfile, rspcontent,
/*restat*/ "$RESTAT",
/*generator*/ false);
}
if (this->TargetNameOut != this->TargetNameReal &&
!this->GetGeneratorTarget()->IsFrameworkOnApple()) {
std::string cmakeCommand =
this->GetLocalGenerator()->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
if (targetType == cmStateEnums::EXECUTABLE) {
this->GetGlobalGenerator()->AddRule(
"CMAKE_SYMLINK_EXECUTABLE",
cmakeCommand + " -E cmake_symlink_executable"
" $in $out && $POST_BUILD",
"Creating executable symlink $out", "Rule for creating "
"executable symlink.",
/*depfile*/ "",
/*deptype*/ "",
/*rspfile*/ "",
/*rspcontent*/ "",
/*restat*/ "",
/*generator*/ false);
} else {
this->GetGlobalGenerator()->AddRule(
"CMAKE_SYMLINK_LIBRARY",
cmakeCommand + " -E cmake_symlink_library"
" $in $SONAME $out && $POST_BUILD",
"Creating library symlink $out", "Rule for creating "
"library symlink.",
/*depfile*/ "",
/*deptype*/ "",
/*rspfile*/ "",
/*rspcontent*/ "",
/*restat*/ "",
/*generator*/ false);
}
}
}
std::vector<std::string> cmNinjaNormalTargetGenerator::ComputeDeviceLinkCmd()
{
std::vector<std::string> linkCmds;
// this target requires separable cuda compilation
// now build the correct command depending on if the target is
// an executable or a dynamic library.
std::string linkCmd;
switch (this->GetGeneratorTarget()->GetType()) {
case cmStateEnums::SHARED_LIBRARY:
case cmStateEnums::MODULE_LIBRARY: {
const std::string cudaLinkCmd(
this->GetMakefile()->GetDefinition("CMAKE_CUDA_DEVICE_LINK_LIBRARY"));
cmSystemTools::ExpandListArgument(cudaLinkCmd, linkCmds);
} break;
case cmStateEnums::EXECUTABLE: {
const std::string cudaLinkCmd(this->GetMakefile()->GetDefinition(
"CMAKE_CUDA_DEVICE_LINK_EXECUTABLE"));
cmSystemTools::ExpandListArgument(cudaLinkCmd, linkCmds);
} break;
default:
break;
}
return linkCmds;
}
std::vector<std::string> cmNinjaNormalTargetGenerator::ComputeLinkCmd()
{
std::vector<std::string> linkCmds;
cmMakefile* mf = this->GetMakefile();
{
// If we have a rule variable prefer it. In the case of static libraries
// this occurs when things like IPO is enabled, and we need to use the
// CMAKE_<lang>_CREATE_STATIC_LIBRARY_IPO define instead.
std::string linkCmdVar = this->GetGeneratorTarget()->GetCreateRuleVariable(
this->TargetLinkLanguage, this->GetConfigName());
const char* linkCmd = mf->GetDefinition(linkCmdVar);
if (linkCmd) {
cmSystemTools::ExpandListArgument(linkCmd, linkCmds);
if (this->GetGeneratorTarget()->GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
std::string cmakeCommand =
this->GetLocalGenerator()->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmLocalGenerator::SHELL);
cmakeCommand += " -E __run_iwyu --lwyu=";
cmGeneratorTarget& gt = *this->GetGeneratorTarget();
const std::string cfgName = this->GetConfigName();
std::string targetOutput = ConvertToNinjaPath(gt.GetFullPath(cfgName));
std::string targetOutputReal =
this->ConvertToNinjaPath(gt.GetFullPath(cfgName,
/*implib=*/false,
/*realname=*/true));
cmakeCommand += targetOutputReal;
cmakeCommand += " || true";
linkCmds.push_back(cmakeCommand);
}
return linkCmds;
}
}
switch (this->GetGeneratorTarget()->GetType()) {
case cmStateEnums::STATIC_LIBRARY: {
// We have archive link commands set. First, delete the existing archive.
{
std::string cmakeCommand =
this->GetLocalGenerator()->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
linkCmds.push_back(cmakeCommand + " -E remove $TARGET_FILE");
}
// TODO: Use ARCHIVE_APPEND for archives over a certain size.
{
std::string linkCmdVar = "CMAKE_";
linkCmdVar += this->TargetLinkLanguage;
linkCmdVar += "_ARCHIVE_CREATE";
linkCmdVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
linkCmdVar, this->GetConfigName());
const char* linkCmd = mf->GetRequiredDefinition(linkCmdVar);
cmSystemTools::ExpandListArgument(linkCmd, linkCmds);
}
{
std::string linkCmdVar = "CMAKE_";
linkCmdVar += this->TargetLinkLanguage;
linkCmdVar += "_ARCHIVE_FINISH";
linkCmdVar = this->GeneratorTarget->GetFeatureSpecificLinkRuleVariable(
linkCmdVar, this->GetConfigName());
const char* linkCmd = mf->GetRequiredDefinition(linkCmdVar);
cmSystemTools::ExpandListArgument(linkCmd, linkCmds);
}
return linkCmds;
}
case cmStateEnums::SHARED_LIBRARY:
case cmStateEnums::MODULE_LIBRARY:
case cmStateEnums::EXECUTABLE:
break;
default:
assert(false && "Unexpected target type");
}
return std::vector<std::string>();
}
static int calculateCommandLineLengthLimit(int linkRuleLength)
{
static int const limits[] = {
#ifdef _WIN32
8000,
#endif
#if defined(__linux)
// #define MAX_ARG_STRLEN (PAGE_SIZE * 32) in Linux's binfmts.h
((int)sysconf(_SC_PAGESIZE) * 32) - 1000,
#endif
std::numeric_limits<int>::max()
};
size_t const arrSz = cmArraySize(limits);
int sz = *std::min_element(limits, limits + arrSz);
#if defined(_SC_ARG_MAX)
// for instance ARG_MAX is 2096152 on Ubuntu or 262144 on Mac
int const szArgMax = static_cast<int>(sysconf(_SC_ARG_MAX));
// a return value of -1 signifies an unrestricted value
if (szArgMax != -1) {
sz = std::min(sz, szArgMax - 1000);
}
#endif
if (sz == std::numeric_limits<int>::max()) {
return 0;
}
return sz - linkRuleLength;
}
void cmNinjaNormalTargetGenerator::WriteDeviceLinkStatement()
{
cmGeneratorTarget& genTarget = *this->GetGeneratorTarget();
// determine if we need to do any device linking for this target
const std::string cuda_lang("CUDA");
cmGeneratorTarget::LinkClosure const* closure =
genTarget.GetLinkClosure(this->GetConfigName());
const bool hasCUDA =
(std::find(closure->Languages.begin(), closure->Languages.end(),
cuda_lang) != closure->Languages.end());
bool shouldHaveDeviceLinking = false;
switch (genTarget.GetType()) {
case cmStateEnums::SHARED_LIBRARY:
case cmStateEnums::MODULE_LIBRARY:
case cmStateEnums::EXECUTABLE:
shouldHaveDeviceLinking = true;
break;
default:
break;
}
if (!shouldHaveDeviceLinking || !hasCUDA) {
return;
}
// Now we can do device linking
// First and very important step is to make sure while inside this
// step our link language is set to CUDA
std::string cudaLinkLanguage = "CUDA";
std::string const objExt =
this->Makefile->GetSafeDefinition("CMAKE_CUDA_OUTPUT_EXTENSION");
std::string const cfgName = this->GetConfigName();
std::string const targetOutputReal = ConvertToNinjaPath(
genTarget.ObjectDirectory + "cmake_device_link" + objExt);
std::string const targetOutputImplib =
ConvertToNinjaPath(genTarget.GetFullPath(cfgName,
/*implib=*/true));
this->DeviceLinkObject = targetOutputReal;
// Write comments.
cmGlobalNinjaGenerator::WriteDivider(this->GetBuildFileStream());
const cmStateEnums::TargetType targetType = genTarget.GetType();
this->GetBuildFileStream() << "# Device Link build statements for "
<< cmState::GetTargetTypeName(targetType)
<< " target " << this->GetTargetName() << "\n\n";
// Compute the comment.
std::ostringstream comment;
comment << "Link the " << this->GetVisibleTypeName() << " "
<< targetOutputReal;
cmNinjaDeps emptyDeps;
cmNinjaVars vars;
// Compute outputs.
cmNinjaDeps outputs;
outputs.push_back(targetOutputReal);
// Compute specific libraries to link with.
cmNinjaDeps explicitDeps = this->GetObjects();
cmNinjaDeps implicitDeps = this->ComputeLinkDeps();
std::string frameworkPath;
std::string linkPath;
std::string createRule = genTarget.GetCreateRuleVariable(
this->TargetLinkLanguage, this->GetConfigName());
const bool useWatcomQuote =
this->GetMakefile()->IsOn(createRule + "_USE_WATCOM_QUOTE");
cmLocalNinjaGenerator& localGen = *this->GetLocalGenerator();
vars["TARGET_FILE"] =
localGen.ConvertToOutputFormat(targetOutputReal, cmOutputConverter::SHELL);
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
new cmNinjaLinkLineDeviceComputer(
this->GetLocalGenerator(),
this->GetLocalGenerator()->GetStateSnapshot().GetDirectory(),
this->GetGlobalGenerator()));
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
localGen.GetTargetFlags(
linkLineComputer.get(), this->GetConfigName(), vars["LINK_LIBRARIES"],
vars["FLAGS"], vars["LINK_FLAGS"], frameworkPath, linkPath, &genTarget);
this->addPoolNinjaVariable("JOB_POOL_LINK", &genTarget, vars);
vars["LINK_FLAGS"] =
cmGlobalNinjaGenerator::EncodeLiteral(vars["LINK_FLAGS"]);
vars["MANIFESTS"] = this->GetManifests();
vars["LINK_PATH"] = frameworkPath + linkPath;
// Compute architecture specific link flags. Yes, these go into a different
// variable for executables, probably due to a mistake made when duplicating
// code between the Makefile executable and library generators.
if (targetType == cmStateEnums::EXECUTABLE) {
std::string t = vars["FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, cudaLinkLanguage, cfgName);
vars["FLAGS"] = t;
} else {
std::string t = vars["ARCH_FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, cudaLinkLanguage, cfgName);
vars["ARCH_FLAGS"] = t;
t = "";
localGen.AddLanguageFlags(t, cudaLinkLanguage, cfgName);
vars["LANGUAGE_COMPILE_FLAGS"] = t;
}
if (this->GetGeneratorTarget()->HasSOName(cfgName)) {
vars["SONAME_FLAG"] =
this->GetMakefile()->GetSONameFlag(this->TargetLinkLanguage);
vars["SONAME"] = this->TargetNameSO;
if (targetType == cmStateEnums::SHARED_LIBRARY) {
std::string install_dir =
this->GetGeneratorTarget()->GetInstallNameDirForBuildTree(cfgName);
if (!install_dir.empty()) {
vars["INSTALLNAME_DIR"] = localGen.ConvertToOutputFormat(
install_dir, cmOutputConverter::SHELL);
}
}
}
cmNinjaDeps byproducts;
if (!this->TargetNameImport.empty()) {
const std::string impLibPath = localGen.ConvertToOutputFormat(
targetOutputImplib, cmOutputConverter::SHELL);
vars["TARGET_IMPLIB"] = impLibPath;
EnsureParentDirectoryExists(impLibPath);
if (genTarget.HasImportLibrary()) {
byproducts.push_back(targetOutputImplib);
}
}
const std::string objPath = GetGeneratorTarget()->GetSupportDirectory();
vars["OBJECT_DIR"] = this->GetLocalGenerator()->ConvertToOutputFormat(
this->ConvertToNinjaPath(objPath), cmOutputConverter::SHELL);
EnsureDirectoryExists(objPath);
this->SetMsvcTargetPdbVariable(vars);
if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
// ar.exe can't handle backslashes in rsp files (implicitly used by gcc)
std::string& linkLibraries = vars["LINK_LIBRARIES"];
std::replace(linkLibraries.begin(), linkLibraries.end(), '\\', '/');
std::string& link_path = vars["LINK_PATH"];
std::replace(link_path.begin(), link_path.end(), '\\', '/');
}
const std::vector<cmCustomCommand>* cmdLists[3] = {
&genTarget.GetPreBuildCommands(), &genTarget.GetPreLinkCommands(),
&genTarget.GetPostBuildCommands()
};
std::vector<std::string> preLinkCmdLines, postBuildCmdLines;
vars["PRE_LINK"] = localGen.BuildCommandLine(preLinkCmdLines);
vars["POST_BUILD"] = localGen.BuildCommandLine(postBuildCmdLines);
std::vector<std::string>* cmdLineLists[3] = { &preLinkCmdLines,
&preLinkCmdLines,
&postBuildCmdLines };
for (unsigned i = 0; i != 3; ++i) {
for (std::vector<cmCustomCommand>::const_iterator ci =
cmdLists[i]->begin();
ci != cmdLists[i]->end(); ++ci) {
cmCustomCommandGenerator ccg(*ci, cfgName, this->GetLocalGenerator());
localGen.AppendCustomCommandLines(ccg, *cmdLineLists[i]);
std::vector<std::string> const& ccByproducts = ccg.GetByproducts();
std::transform(ccByproducts.begin(), ccByproducts.end(),
std::back_inserter(byproducts), MapToNinjaPath());
}
}
cmGlobalNinjaGenerator& globalGen = *this->GetGlobalGenerator();
// Device linking currently doesn't support response files so
// do not check if the user has explicitly forced a response file.
int const commandLineLengthLimit = calculateCommandLineLengthLimit(
globalGen.GetRuleCmdLength(this->LanguageLinkerDeviceRule()));
const std::string rspfile =
std::string(cmake::GetCMakeFilesDirectoryPostSlash()) +
genTarget.GetName() + ".rsp";
// Gather order-only dependencies.
cmNinjaDeps orderOnlyDeps;
this->GetLocalGenerator()->AppendTargetDepends(this->GetGeneratorTarget(),
orderOnlyDeps);
// Write the build statement for this target.
bool usedResponseFile = false;
globalGen.WriteBuild(this->GetBuildFileStream(), comment.str(),
this->LanguageLinkerDeviceRule(), outputs,
/*implicitOuts=*/cmNinjaDeps(), explicitDeps,
implicitDeps, orderOnlyDeps, vars, rspfile,
commandLineLengthLimit, &usedResponseFile);
this->WriteDeviceLinkRule(usedResponseFile);
}
void cmNinjaNormalTargetGenerator::WriteLinkStatement()
{
cmGeneratorTarget& gt = *this->GetGeneratorTarget();
const std::string cfgName = this->GetConfigName();
std::string targetOutput = ConvertToNinjaPath(gt.GetFullPath(cfgName));
std::string targetOutputReal =
ConvertToNinjaPath(gt.GetFullPath(cfgName,
/*implib=*/false,
/*realname=*/true));
std::string targetOutputImplib =
ConvertToNinjaPath(gt.GetFullPath(cfgName,
/*implib=*/true));
if (gt.IsAppBundleOnApple()) {
// Create the app bundle
std::string outpath = gt.GetDirectory(cfgName);
this->OSXBundleGenerator->CreateAppBundle(this->TargetNameOut, outpath);
// Calculate the output path
targetOutput = outpath;
targetOutput += "/";
targetOutput += this->TargetNameOut;
targetOutput = this->ConvertToNinjaPath(targetOutput);
targetOutputReal = outpath;
targetOutputReal += "/";
targetOutputReal += this->TargetNameReal;
targetOutputReal = this->ConvertToNinjaPath(targetOutputReal);
} else if (gt.IsFrameworkOnApple()) {
// Create the library framework.
this->OSXBundleGenerator->CreateFramework(this->TargetNameOut,
gt.GetDirectory(cfgName));
} else if (gt.IsCFBundleOnApple()) {
// Create the core foundation bundle.
this->OSXBundleGenerator->CreateCFBundle(this->TargetNameOut,
gt.GetDirectory(cfgName));
}
// Write comments.
cmGlobalNinjaGenerator::WriteDivider(this->GetBuildFileStream());
const cmStateEnums::TargetType targetType = gt.GetType();
this->GetBuildFileStream() << "# Link build statements for "
<< cmState::GetTargetTypeName(targetType)
<< " target " << this->GetTargetName() << "\n\n";
cmNinjaDeps emptyDeps;
cmNinjaVars vars;
// Compute the comment.
std::ostringstream comment;
comment << "Link the " << this->GetVisibleTypeName() << " "
<< targetOutputReal;
// Compute outputs.
cmNinjaDeps outputs;
outputs.push_back(targetOutputReal);
// Compute specific libraries to link with.
cmNinjaDeps explicitDeps = this->GetObjects();
cmNinjaDeps implicitDeps = this->ComputeLinkDeps();
if (!this->DeviceLinkObject.empty()) {
explicitDeps.push_back(this->DeviceLinkObject);
}
cmMakefile* mf = this->GetMakefile();
std::string frameworkPath;
std::string linkPath;
cmGeneratorTarget& genTarget = *this->GetGeneratorTarget();
std::string createRule = genTarget.GetCreateRuleVariable(
this->TargetLinkLanguage, this->GetConfigName());
bool useWatcomQuote = mf->IsOn(createRule + "_USE_WATCOM_QUOTE");
cmLocalNinjaGenerator& localGen = *this->GetLocalGenerator();
vars["TARGET_FILE"] =
localGen.ConvertToOutputFormat(targetOutputReal, cmOutputConverter::SHELL);
CM_AUTO_PTR<cmLinkLineComputer> linkLineComputer(
this->GetGlobalGenerator()->CreateLinkLineComputer(
this->GetLocalGenerator(),
this->GetLocalGenerator()->GetStateSnapshot().GetDirectory()));
linkLineComputer->SetUseWatcomQuote(useWatcomQuote);
localGen.GetTargetFlags(
linkLineComputer.get(), this->GetConfigName(), vars["LINK_LIBRARIES"],
vars["FLAGS"], vars["LINK_FLAGS"], frameworkPath, linkPath, &genTarget);
// Add OS X version flags, if any.
if (this->GeneratorTarget->GetType() == cmStateEnums::SHARED_LIBRARY ||
this->GeneratorTarget->GetType() == cmStateEnums::MODULE_LIBRARY) {
this->AppendOSXVerFlag(vars["LINK_FLAGS"], this->TargetLinkLanguage,
"COMPATIBILITY", true);
this->AppendOSXVerFlag(vars["LINK_FLAGS"], this->TargetLinkLanguage,
"CURRENT", false);
}
this->addPoolNinjaVariable("JOB_POOL_LINK", &gt, vars);
this->AddModuleDefinitionFlag(linkLineComputer.get(), vars["LINK_FLAGS"]);
vars["LINK_FLAGS"] =
cmGlobalNinjaGenerator::EncodeLiteral(vars["LINK_FLAGS"]);
vars["MANIFESTS"] = this->GetManifests();
vars["LINK_PATH"] = frameworkPath + linkPath;
std::string lwyuFlags;
if (genTarget.GetPropertyAsBool("LINK_WHAT_YOU_USE")) {
lwyuFlags = " -Wl,--no-as-needed";
}
// Compute architecture specific link flags. Yes, these go into a different
// variable for executables, probably due to a mistake made when duplicating
// code between the Makefile executable and library generators.
if (targetType == cmStateEnums::EXECUTABLE) {
std::string t = vars["FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, TargetLinkLanguage, cfgName);
t += lwyuFlags;
vars["FLAGS"] = t;
} else {
std::string t = vars["ARCH_FLAGS"];
localGen.AddArchitectureFlags(t, &genTarget, TargetLinkLanguage, cfgName);
vars["ARCH_FLAGS"] = t;
t = "";
t += lwyuFlags;
localGen.AddLanguageFlags(t, TargetLinkLanguage, cfgName);
vars["LANGUAGE_COMPILE_FLAGS"] = t;
}
if (this->GetGeneratorTarget()->HasSOName(cfgName)) {
vars["SONAME_FLAG"] = mf->GetSONameFlag(this->TargetLinkLanguage);
vars["SONAME"] = this->TargetNameSO;
if (targetType == cmStateEnums::SHARED_LIBRARY) {
std::string install_dir =
this->GetGeneratorTarget()->GetInstallNameDirForBuildTree(cfgName);
if (!install_dir.empty()) {
vars["INSTALLNAME_DIR"] = localGen.ConvertToOutputFormat(
install_dir, cmOutputConverter::SHELL);
}
}
}
cmNinjaDeps byproducts;
if (!this->TargetNameImport.empty()) {
const std::string impLibPath = localGen.ConvertToOutputFormat(
targetOutputImplib, cmOutputConverter::SHELL);
vars["TARGET_IMPLIB"] = impLibPath;
EnsureParentDirectoryExists(impLibPath);
if (genTarget.HasImportLibrary()) {
byproducts.push_back(targetOutputImplib);
}
}
if (!this->SetMsvcTargetPdbVariable(vars)) {
// It is common to place debug symbols at a specific place,
// so we need a plain target name in the rule available.
std::string prefix;
std::string base;
std::string suffix;
this->GetGeneratorTarget()->GetFullNameComponents(prefix, base, suffix);
std::string dbg_suffix = ".dbg";
// TODO: Where to document?
if (mf->GetDefinition("CMAKE_DEBUG_SYMBOL_SUFFIX")) {
dbg_suffix = mf->GetDefinition("CMAKE_DEBUG_SYMBOL_SUFFIX");
}
vars["TARGET_PDB"] = base + suffix + dbg_suffix;
}
const std::string objPath = GetGeneratorTarget()->GetSupportDirectory();
vars["OBJECT_DIR"] = this->GetLocalGenerator()->ConvertToOutputFormat(
this->ConvertToNinjaPath(objPath), cmOutputConverter::SHELL);
EnsureDirectoryExists(objPath);
if (this->GetGlobalGenerator()->IsGCCOnWindows()) {
// ar.exe can't handle backslashes in rsp files (implicitly used by gcc)
std::string& linkLibraries = vars["LINK_LIBRARIES"];
std::replace(linkLibraries.begin(), linkLibraries.end(), '\\', '/');
std::string& link_path = vars["LINK_PATH"];
std::replace(link_path.begin(), link_path.end(), '\\', '/');
}
const std::vector<cmCustomCommand>* cmdLists[3] = {
&gt.GetPreBuildCommands(), &gt.GetPreLinkCommands(),
&gt.GetPostBuildCommands()
};
std::vector<std::string> preLinkCmdLines, postBuildCmdLines;
std::vector<std::string>* cmdLineLists[3] = { &preLinkCmdLines,
&preLinkCmdLines,
&postBuildCmdLines };
for (unsigned i = 0; i != 3; ++i) {
for (std::vector<cmCustomCommand>::const_iterator ci =
cmdLists[i]->begin();
ci != cmdLists[i]->end(); ++ci) {
cmCustomCommandGenerator ccg(*ci, cfgName, this->GetLocalGenerator());
localGen.AppendCustomCommandLines(ccg, *cmdLineLists[i]);
std::vector<std::string> const& ccByproducts = ccg.GetByproducts();
std::transform(ccByproducts.begin(), ccByproducts.end(),
std::back_inserter(byproducts), MapToNinjaPath());
}
}
// maybe create .def file from list of objects
cmGeneratorTarget::ModuleDefinitionInfo const* mdi =
gt.GetModuleDefinitionInfo(this->GetConfigName());
if (mdi && mdi->DefFileGenerated) {
std::string cmakeCommand =
this->GetLocalGenerator()->ConvertToOutputFormat(
cmSystemTools::GetCMakeCommand(), cmOutputConverter::SHELL);
std::string cmd = cmakeCommand;
cmd += " -E __create_def ";
cmd += this->GetLocalGenerator()->ConvertToOutputFormat(
mdi->DefFile, cmOutputConverter::SHELL);
cmd += " ";
std::string obj_list_file = mdi->DefFile + ".objs";
cmd += this->GetLocalGenerator()->ConvertToOutputFormat(
obj_list_file, cmOutputConverter::SHELL);
preLinkCmdLines.push_back(cmd);
// create a list of obj files for the -E __create_def to read
cmGeneratedFileStream fout(obj_list_file.c_str());
if (mdi->WindowsExportAllSymbols) {
cmNinjaDeps objs = this->GetObjects();
for (cmNinjaDeps::iterator i = objs.begin(); i != objs.end(); ++i) {
if (cmHasLiteralSuffix(*i, ".obj")) {
fout << *i << "\n";
}
}
}
for (std::vector<cmSourceFile const*>::const_iterator i =
mdi->Sources.begin();
i != mdi->Sources.end(); ++i) {
fout << (*i)->GetFullPath() << "\n";
}
}
// If we have any PRE_LINK commands, we need to go back to CMAKE_BINARY_DIR
// for
// the link commands.
if (!preLinkCmdLines.empty()) {
const std::string homeOutDir = localGen.ConvertToOutputFormat(
localGen.GetBinaryDirectory(), cmOutputConverter::SHELL);
preLinkCmdLines.push_back("cd " + homeOutDir);
}
vars["PRE_LINK"] = localGen.BuildCommandLine(preLinkCmdLines);
std::string postBuildCmdLine = localGen.BuildCommandLine(postBuildCmdLines);
cmNinjaVars symlinkVars;
bool const symlinkNeeded =
(targetOutput != targetOutputReal && !gt.IsFrameworkOnApple());
if (!symlinkNeeded) {
vars["POST_BUILD"] = postBuildCmdLine;
} else {
vars["POST_BUILD"] = cmGlobalNinjaGenerator::SHELL_NOOP;
symlinkVars["POST_BUILD"] = postBuildCmdLine;
}
cmGlobalNinjaGenerator& globalGen = *this->GetGlobalGenerator();
bool const lang_supports_response =
!(this->TargetLinkLanguage == "RC" || this->TargetLinkLanguage == "CUDA");
int commandLineLengthLimit = -1;
if (!lang_supports_response || !this->ForceResponseFile()) {
commandLineLengthLimit = calculateCommandLineLengthLimit(
globalGen.GetRuleCmdLength(this->LanguageLinkerRule()));
}
const std::string rspfile =
std::string(cmake::GetCMakeFilesDirectoryPostSlash()) + gt.GetName() +
".rsp";
// Gather order-only dependencies.
cmNinjaDeps orderOnlyDeps;
this->GetLocalGenerator()->AppendTargetDepends(this->GetGeneratorTarget(),
orderOnlyDeps);
// Ninja should restat after linking if and only if there are byproducts.
vars["RESTAT"] = byproducts.empty() ? "" : "1";
for (cmNinjaDeps::const_iterator oi = byproducts.begin(),
oe = byproducts.end();
oi != oe; ++oi) {
this->GetGlobalGenerator()->SeenCustomCommandOutput(*oi);
outputs.push_back(*oi);
}
// Write the build statement for this target.
bool usedResponseFile = false;
globalGen.WriteBuild(this->GetBuildFileStream(), comment.str(),
this->LanguageLinkerRule(), outputs,
/*implicitOuts=*/cmNinjaDeps(), explicitDeps,
implicitDeps, orderOnlyDeps, vars, rspfile,
commandLineLengthLimit, &usedResponseFile);
this->WriteLinkRule(usedResponseFile);
if (symlinkNeeded) {
if (targetType == cmStateEnums::EXECUTABLE) {
globalGen.WriteBuild(
this->GetBuildFileStream(),
"Create executable symlink " + targetOutput,
"CMAKE_SYMLINK_EXECUTABLE", cmNinjaDeps(1, targetOutput),
/*implicitOuts=*/cmNinjaDeps(), cmNinjaDeps(1, targetOutputReal),
emptyDeps, emptyDeps, symlinkVars);
} else {
cmNinjaDeps symlinks;
std::string const soName =
this->ConvertToNinjaPath(this->GetTargetFilePath(this->TargetNameSO));
// If one link has to be created.
if (targetOutputReal == soName || targetOutput == soName) {
symlinkVars["SONAME"] = soName;
} else {
symlinkVars["SONAME"] = "";
symlinks.push_back(soName);
}
symlinks.push_back(targetOutput);
globalGen.WriteBuild(
this->GetBuildFileStream(), "Create library symlink " + targetOutput,
"CMAKE_SYMLINK_LIBRARY", symlinks,
/*implicitOuts=*/cmNinjaDeps(), cmNinjaDeps(1, targetOutputReal),
emptyDeps, emptyDeps, symlinkVars);
}
}
// Add aliases for the file name and the target name.
globalGen.AddTargetAlias(this->TargetNameOut, &gt);
globalGen.AddTargetAlias(this->GetTargetName(), &gt);
}
void cmNinjaNormalTargetGenerator::WriteObjectLibStatement()
{
// Write a phony output that depends on all object files.
cmNinjaDeps outputs;
this->GetLocalGenerator()->AppendTargetOutputs(this->GetGeneratorTarget(),
outputs);
cmNinjaDeps depends = this->GetObjects();
this->GetGlobalGenerator()->WritePhonyBuild(
this->GetBuildFileStream(), "Object library " + this->GetTargetName(),
outputs, depends);
// Add aliases for the target name.
this->GetGlobalGenerator()->AddTargetAlias(this->GetTargetName(),
this->GetGeneratorTarget());
}