https://github.com/Kitware/CMake
Tip revision: 9306a5ab28af6bb6dc2b933339ccc66764f44b12 authored by Brad King on 20 July 2022, 13:33:55 UTC
CMake 3.24.0-rc4
CMake 3.24.0-rc4
Tip revision: 9306a5a
cmAddLibraryCommand.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmAddLibraryCommand.h"
#include "cmExecutionStatus.h"
#include "cmGeneratorExpression.h"
#include "cmGlobalGenerator.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmPolicies.h"
#include "cmState.h"
#include "cmStateTypes.h"
#include "cmStringAlgorithms.h"
#include "cmTarget.h"
#include "cmValue.h"
bool cmAddLibraryCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
if (args.empty()) {
status.SetError("called with incorrect number of arguments");
return false;
}
cmMakefile& mf = status.GetMakefile();
// Library type defaults to value of BUILD_SHARED_LIBS, if it exists,
// otherwise it defaults to static library.
cmStateEnums::TargetType type = cmStateEnums::SHARED_LIBRARY;
if (cmIsOff(mf.GetDefinition("BUILD_SHARED_LIBS"))) {
type = cmStateEnums::STATIC_LIBRARY;
}
bool excludeFromAll = false;
bool importTarget = false;
bool importGlobal = false;
auto s = args.begin();
std::string const& libName = *s;
++s;
// If the second argument is "SHARED" or "STATIC", then it controls
// the type of library. Otherwise, it is treated as a source or
// source list name. There may be two keyword arguments, check for them
bool haveSpecifiedType = false;
bool isAlias = false;
while (s != args.end()) {
std::string libType = *s;
if (libType == "STATIC") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting STATIC type.");
return false;
}
++s;
type = cmStateEnums::STATIC_LIBRARY;
haveSpecifiedType = true;
} else if (libType == "SHARED") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting SHARED type.");
return false;
}
++s;
type = cmStateEnums::SHARED_LIBRARY;
haveSpecifiedType = true;
} else if (libType == "MODULE") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting MODULE type.");
return false;
}
++s;
type = cmStateEnums::MODULE_LIBRARY;
haveSpecifiedType = true;
} else if (libType == "OBJECT") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting OBJECT type.");
return false;
}
++s;
type = cmStateEnums::OBJECT_LIBRARY;
haveSpecifiedType = true;
} else if (libType == "UNKNOWN") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting UNKNOWN type.");
return false;
}
++s;
type = cmStateEnums::UNKNOWN_LIBRARY;
haveSpecifiedType = true;
} else if (libType == "ALIAS") {
if (type == cmStateEnums::INTERFACE_LIBRARY) {
status.SetError(
"INTERFACE library specified with conflicting ALIAS type.");
return false;
}
++s;
isAlias = true;
} else if (libType == "INTERFACE") {
if (haveSpecifiedType) {
status.SetError(
"INTERFACE library specified with conflicting/multiple types.");
return false;
}
if (isAlias) {
status.SetError(
"INTERFACE library specified with conflicting ALIAS type.");
return false;
}
++s;
type = cmStateEnums::INTERFACE_LIBRARY;
haveSpecifiedType = true;
} else if (*s == "EXCLUDE_FROM_ALL") {
++s;
excludeFromAll = true;
} else if (*s == "IMPORTED") {
++s;
importTarget = true;
} else if (importTarget && *s == "GLOBAL") {
++s;
importGlobal = true;
} else if (type == cmStateEnums::INTERFACE_LIBRARY && *s == "GLOBAL") {
status.SetError(
"GLOBAL option may only be used with IMPORTED libraries.");
return false;
} else {
break;
}
}
if (importTarget && !importGlobal) {
importGlobal = mf.IsImportedTargetGlobalScope();
}
if (type == cmStateEnums::INTERFACE_LIBRARY) {
if (importGlobal && !importTarget) {
status.SetError(
"INTERFACE library specified as GLOBAL, but not as IMPORTED.");
return false;
}
}
bool nameOk = cmGeneratorExpression::IsValidTargetName(libName) &&
!cmGlobalGenerator::IsReservedTarget(libName);
if (nameOk && !importTarget && !isAlias) {
nameOk = libName.find(':') == std::string::npos;
}
if (!nameOk && !mf.CheckCMP0037(libName, type)) {
return false;
}
if (isAlias) {
if (!cmGeneratorExpression::IsValidTargetName(libName)) {
status.SetError("Invalid name for ALIAS: " + libName);
return false;
}
if (excludeFromAll) {
status.SetError("EXCLUDE_FROM_ALL with ALIAS makes no sense.");
return false;
}
if (importTarget || importGlobal) {
status.SetError("IMPORTED with ALIAS is not allowed.");
return false;
}
if (args.size() != 3) {
status.SetError("ALIAS requires exactly one target argument.");
return false;
}
if (mf.GetPolicyStatus(cmPolicies::CMP0107) == cmPolicies::NEW) {
// Make sure the target does not already exist.
if (mf.FindTargetToUse(libName)) {
status.SetError(cmStrCat(
"cannot create ALIAS target \"", libName,
"\" because another target with the same name already exists."));
return false;
}
}
std::string const& aliasedName = *s;
if (mf.IsAlias(aliasedName)) {
status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
"\" because target \"", aliasedName,
"\" is itself an ALIAS."));
return false;
}
cmTarget* aliasedTarget = mf.FindTargetToUse(aliasedName, true);
if (!aliasedTarget) {
status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
"\" because target \"", aliasedName,
"\" does not already exist."));
return false;
}
cmStateEnums::TargetType aliasedType = aliasedTarget->GetType();
if (aliasedType != cmStateEnums::SHARED_LIBRARY &&
aliasedType != cmStateEnums::STATIC_LIBRARY &&
aliasedType != cmStateEnums::MODULE_LIBRARY &&
aliasedType != cmStateEnums::OBJECT_LIBRARY &&
aliasedType != cmStateEnums::INTERFACE_LIBRARY &&
!(aliasedType == cmStateEnums::UNKNOWN_LIBRARY &&
aliasedTarget->IsImported())) {
status.SetError(cmStrCat("cannot create ALIAS target \"", libName,
"\" because target \"", aliasedName,
"\" is not a library."));
return false;
}
mf.AddAlias(libName, aliasedName,
!aliasedTarget->IsImported() ||
aliasedTarget->IsImportedGloballyVisible());
return true;
}
if (importTarget && excludeFromAll) {
status.SetError("excludeFromAll with IMPORTED target makes no sense.");
return false;
}
/* ideally we should check whether for the linker language of the target
CMAKE_${LANG}_CREATE_SHARED_LIBRARY is defined and if not default to
STATIC. But at this point we know only the name of the target, but not
yet its linker language. */
if ((type == cmStateEnums::SHARED_LIBRARY ||
type == cmStateEnums::MODULE_LIBRARY) &&
!mf.GetState()->GetGlobalPropertyAsBool("TARGET_SUPPORTS_SHARED_LIBS")) {
mf.IssueMessage(
MessageType::AUTHOR_WARNING,
cmStrCat(
"ADD_LIBRARY called with ",
(type == cmStateEnums::SHARED_LIBRARY ? "SHARED" : "MODULE"),
" option but the target platform does not support dynamic linking. ",
"Building a STATIC library instead. This may lead to problems."));
type = cmStateEnums::STATIC_LIBRARY;
}
// Handle imported target creation.
if (importTarget) {
// The IMPORTED signature requires a type to be specified explicitly.
if (!haveSpecifiedType) {
status.SetError("called with IMPORTED argument but no library type.");
return false;
}
if (type == cmStateEnums::INTERFACE_LIBRARY) {
if (!cmGeneratorExpression::IsValidTargetName(libName)) {
status.SetError(cmStrCat(
"Invalid name for IMPORTED INTERFACE library target: ", libName));
return false;
}
}
// Make sure the target does not already exist.
if (mf.FindTargetToUse(libName)) {
status.SetError(cmStrCat(
"cannot create imported target \"", libName,
"\" because another target with the same name already exists."));
return false;
}
// Create the imported target.
mf.AddImportedTarget(libName, type, importGlobal);
return true;
}
// A non-imported target may not have UNKNOWN type.
if (type == cmStateEnums::UNKNOWN_LIBRARY) {
mf.IssueMessage(
MessageType::FATAL_ERROR,
"The UNKNOWN library type may be used only for IMPORTED libraries.");
return true;
}
// Enforce name uniqueness.
{
std::string msg;
if (!mf.EnforceUniqueName(libName, msg)) {
status.SetError(msg);
return false;
}
}
if (type == cmStateEnums::INTERFACE_LIBRARY) {
if (!cmGeneratorExpression::IsValidTargetName(libName) ||
libName.find("::") != std::string::npos) {
status.SetError(
cmStrCat("Invalid name for INTERFACE library target: ", libName));
return false;
}
}
std::vector<std::string> srcs(s, args.end());
mf.AddLibrary(libName, type, srcs, excludeFromAll);
return true;
}