The SBOM functions so far had a lot of Qt-specific logic inside them.
Decouple this logic into separate Qt-specific functions or explicitly
guard the code with Qt-specific handling options, to prepare for a
cleaner SBOM public API.
The generic functions then call the Qt-specific ones if various
internal options are set.
This approach is used, rather than directly passing values to the
generic functions because:
- we have cases where we need to recursively pass the values all the
way down to all recursively created attribution targets
- some of the logic needs to know about values before and after qt
processing, and this could be achieved with something like lambdas
but it's not worth the complexity
Task-number: QTBUG-122899
Change-Id: I4399c41f4d976f20b16a0bb0c674d4f07ee1ccd4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit f1ac316191c010b1389f6f3549c9f0b4424b9936)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 59a571c75dbbe3cd425629ad309bdf143f0616de)
CMake 3.31 introduced the policy CMP0174 that triggers a warning if a
single-value argument is passed to a function without a value.
We did this doing this when forwarding arguments in code that doesn't
use _qt_internal_forward_function_args yet, e.g. in qt_internal_add_app:
qt_internal_add_executable(...
TARGET_PRODUCT ${arg_TARGET_PRODUCT}
...)
Forward the warning-triggering arguments with
_qt_internal_forward_function_args now, because that only forwards used
arguments.
In the future, we can offload more forwarding work to the
_qt_internal_forward_function_args command and simplify the forwarding
code in qt_internal_add_app and qt_internal_add_tool. This patch only
fixes the worst offenders for now.
Change-Id: Ie786691e4b236decf4c62f4dd0751ed76b721177
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit 18a217af4a50afd707ed2caed4880d0da19ee120)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
They should inherit the version of the 3rd party library they are part
of, and not be treated as Qt modules.
Task-number: QTBUG-122899
Change-Id: Ibf99f4481fbc1acca488fc96cca048298b080d35
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit b17dfbbb992b1d38d7a1aeb2b0109bab9cb1e4e3)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
A previous commit disabled QT_SUPPORTS_INT128 if the Standard Library
doesn't properly specialize <type_traits> and <limits> for the 128-bit
types, like libstdc++ in strict mode. As a consequence, we now need to
compile Qt in non-strict mode so QT_SUPPORTS_INT128 is true when
building Qt, at least if the compiler supports 128-bit integers in
principle.
Statically assert that QT_SUPPORTS_INT128 is defined if the compiler
in principle supports it, to catch other problematic platforms early.
We have a few out-of-line implementations that should be built if the
compiler supports int128 in principle, so that Qt users are free to
use the types if their compiler supports them and not run into missing
support in the Qt library. This patch ensures this.
Compiling in non-strict mode removes the early warning we were getting
from it, but a) headersclean still uses strict mode, so at least our
headers are regularly checked and b) this is a cross-platform project;
if we were to use platform-specific extensions unprotected, other
platform's compilers will still complain.
Fixes: QTBUG-119901
Change-Id: I974f95ca0f26085dd0fe5ceb8bbef4f62467979a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit 30e04340dac26ebd09f9bc8ceb598e873ab63ba7)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Previously, only a very short subset of options related to attribution
files could be specified to qt_internal_add_module /
qt_internal_extend_target.
It is more convenient to allow specifying most (safe) options, instead
of calling another function.
Unsafe are considered paths like INSTALL_PATH and derivatives, TYPE
which is too generic, and some other ones like LIBRARIES which would
be duplicated, and causes warnings in cmake_parse_arguments if
duplicated.
Change the code to allow specifying most SBOM options and forwarding
them to _qt_internal_extend_sbom.
Task-number: QTBUG-122899
Change-Id: I6eb723e165edf59973d83c66eace43acdce237de
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 81162cc8b6931c8659dc722be97eb788e344812a)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This change adds a new -sbom configure option to allow generating and
installing an SPDX v2.3 SBOM file when building a qt repo.
The -sbom-dir option can be used to configure the location where
each repo sbom file will be installed.
By default it is installed into
$prefix/$archdatadir/sbom/$sbom_lower_project_name.sdpx
which is basically ~/Qt/sbom/qtbase-6.8.0.spdx
The file is installed as part of the default installation rules, but
it can also be installed manually using the "sbom" installation
component, or "sbom_$lower_project_name" in a top-level build. For
example: cmake install . --component sbom_qtbase
CMake 3.19+ is needed to read the qt_attribution.json files for
copyrights, license info, etc. When using an older cmake version,
configuration will error out. It is possible to opt into using an
older cmake version, but the generated sbom will lack all the
attribution file information.
Using an older cmake version is untested and not officially supported.
Implementation notes.
The bulk of the implementation is split into 4 new files:
- QtPublicSbomHelpers.cmake - for Qt-specific collecting, processing
and dispatching the generation of various pieces of the SBOM document
e.g. a SDPX package associated with a target like Core, a SDPX
file entry for each target binary file (per-config shared library,
archive, executable, etc)
- QtPublicSbomGenerationHelpers.cmake - for non-Qt specific
implementation of SPDX generation. This also has some code that was
taken from the cmake-sbom 3rd party project, so it is dual licensed
under the usual Qt build system BSD license, as well as the MIT
license of the 3rd party project
- QtPublicGitHelpers.cmake - for git related features, mainly to embed
queried hashes or tags into version strings, is dual-licensed for
the same reasons as QtPublicSbomGenerationHelpers.cmake
- QtSbomHelpers.cmake - Qt-specific functions that just forward
arguments to the public functions. These are meant to be used in our
Qt CMakeLists.txt instead of the public _qt_internal_add_sbom ones
for naming consistency. These function would mostly be used to
annotate 3rd party libraries with sbom info and to add sbom info
for unusual target setups (like the Bootstrap library), because most
of the handling is already done automatically via
qt_internal_add_module/plugin/etc.
The files are put into Public cmake files, with the future hope of
making this available to user projects in some capacity.
The distinction of Qt-specific and non-Qt specific code might blur a
bit, and thus the separation across files might not always be
consistent, but it was best effort.
The main purpose of the code is to collect various information about
targets and their relationships and generate equivalent SPDX info.
Collection is currently done for the following targets: Qt modules,
plugins, apps, tools, system libraries, bundled 3rd party libraries
and partial 3rd party sources compiled directly as part of Qt targets.
Each target has an equivalent SPDX package generated with information
like version, license, copyright, CPE (common vulnerability
identifier), files that belong to the package, and relationships on
other SPDX packages (associated cmake targets), mostly gathered from
direct linking dependencies.
Each package might also contain files, e.g. libQt6Core.so for the Core
target. Each file also has info like license id, copyrights, but also
the list of source files that were used to generate the file and a
sha1 checksum.
SPDX documents can also refer to packages in other SPDX documents, and
those are referred to via external document references. This is the
case when building qtdeclarative and we refer to Core.
For qt provided targets, we have complete information regarding
licenses, and copyrights.
For bundled 3rd party libraries, we should also have most information,
which is usually parsed from the
src/3rdparty/libfoo/qt_attribution.json files.
If there are multiple attribution files, or if the files have multiple
entries, we create a separate SBOM package for each of those entries,
because each might have a separate copyright or version, and an sbom
package can have only one version (although many copyrights).
For system libraries we usually lack the information because we don't
have attribution files for Find scripts. So the info needs to be
manually annotated via arguments to the sbom function calls, or the
FindFoo.cmake scripts expose that information in some form and we
can query it.
There are also corner cases like 3rdparty sources being directly
included in a Qt library, like the m4dc files for Gui, or PCRE2 for
Bootstrap.
Or QtWebEngine libraries (either Qt bundled or Chromium bundled or
system libraries) which get linked in by GN instead of CMake, so there
are no direct targets for them.
The information for these need to be annotated manually as well.
There is also a distinction to be made for static Qt builds (or any
static Qt library in a shared build), where the system libraries found
during the Qt build might not be the same that are linked into the
final user application or library.
The actual generation of the SBOM is done by file(GENERATE)-ing one
.cmake file for each target, file, external ref, etc, which will be
included in a top-level cmake script.
The top-level cmake script will run through each included file, to
append to a "staging" spdx file, which will then be used in a
configure_file() call to replace some final
variables, like embedding a file checksum.
There are install rules to generate a complete SBOM during
installation, and an optional 'sbom' custom target that allows
building an incomplete SBOM during the build step.
The build target is just for convenience and faster development
iteration time. It is incomplete because it is missing the installed
file SHA1 checksums and the document verification code (the sha1 of
all sha1s). We can't compute those during the build before the files
are actually installed.
A complete SBOM can only be achieved at installation time. The install
script will include all the generated helper files, but also set some
additional variables to ensure checksumming happens, and also handle
multi-config installation, among other small things.
For multi-config builds, CMake doesn't offer a way to run code after
all configs are installed, because they might not always be installed,
someone might choose to install just Release.
To handle that, we rely on ninja installing each config sequentially
(because ninja places the install rules into the 'console' pool which
runs one task at a time).
For each installed config we create a config-specific marker file.
Once all marker files are present, whichever config ends up being
installed as the last one, we run the sbom generation once, and then
delete all marker files.
There are a few internal variables that can be set during
configuration to enable various checks (and other features) on the
generated spdx files:
- QT_INTERNAL_SBOM_VERIFY
- QT_INTERNAL_SBOM_AUDIT
- QT_INTERNAL_SBOM_AUDIT_NO_ERROR
- QT_INTERNAL_SBOM_GENERATE_JSON
- QT_INTERNAL_SBOM_SHOW_TABLE
- QT_INTERNAL_SBOM_DEFAULT_CHECKS
These use 3rd party python tools, so they are not enabled by default.
If enabled, they run at installation time after the sbom is installed.
We will hopefully enable them in CI.
Overall, the code is still a bit messy in a few places, due to time
constraints, but can be improved later.
Some possible TODOs for the future:
- Do we need to handle 3rd party libs linked into a Qt static library
in a Qt shared build, where the Qt static lib is not installed, but
linked into a Qt shared library, somehow specially?
We can record a package for it, but we can't
create a spdx file record for it (and associated source
relationships) because we don't install the file, and spdx requires
the file to be installed and checksummed. Perhaps we can consider
adding some free-form text snippet to the package itself?
- Do we want to add parsing of .cpp source files for Copyrights, to
embed them into the packages? This will likely slow down
configuration quite a bit.
- Currently sbom info attached to WrapFoo packages in one repo is
not exported / available in other repos. E.g. If we annotate
WrapZLIB in qtbase with CPE_VENDOR zlib, this info will not be
available when looking up WrapZLIB in qtimageformats.
This is because they are IMPORTED libraries, and are not
exported. We might want to record this info in the future.
[ChangeLog][Build System] A new -sbom configure option can be used
to generate and install a SPDX SBOM (Software Bill of Materials) file
for each built Qt repository.
Task-number: QTBUG-122899
Change-Id: I9c730a6bbc47e02ce1836fccf00a14ec8eb1a5f4
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
(cherry picked from commit 37a5e001277db9e1392a242171ab2b88cb6c3049)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
The behavior that argument was enabling is the default one now.
Task-number: QTBUG-90492
Change-Id: I11711d4c794f0b22169abb595b8ffad2eeb1300d
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
(cherry picked from commit 1ef3bd05eb45d53cdcf92b933603b995283b3432)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Versionless targets in Qt6 are interface libraries that link the
versioned libraries using the INTERFACE link type. This makes the
linking chain more complicated than it can be. Also we miss some
significant interface properties in the versionless targets comparing
to the versioned targets.
The new approach manually generates the versionless targets, instead
of using CMake exports.
For CMake versions < 3.18 we now create a copy of the versioned
targets. The copy includes all the relevant INTERFACE properties from
the versioned targets and imported locations for all configs.
For CMake versions >= 3.18 we now create the versionless target ALIASes
which should behave give the transparent access to the versioned
targets.
Using the QT_USE_OLD_VERSION_LESS_TARGETS flag you may force the
behavor of the CMake versions <= 3.18
The change is partial workaround for QTBUG-86533.
Task-number: QTBUG-114706
Change-Id: Iafadf6154eb4912df0697648c031fcc1cbde04e0
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
- Removed the NO_UNITY_BUILD argument from commands that disable it by
default.
- Add a warning in case NO_UNITY_BUILD or NO_UNITY_BUILD_SOURCES is
being used where it is already disabled, e.g., qt_internal_add_test
- Exclude all sources of a target from unity build if NO_UNITY_BUILD
is set on the target. This sounds a bit harsh, but I have noticed that
sometimes the same source file can be included somewhere else, and
some unexpected collision may occur.
- qt_examples_build_end excludes all its examples from the unity build.
- qt_build_test now sets the CMAKE_UNITY_BUILD to OFF before configuring
the tests, and restore its value when done.
Pick-to: 6.5
Task-number: QTBUG-109394
Change-Id: Ia42e7dd5a5bfb151db241deb639325720fd91eec
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
- The following commands accepts NO_UNITY_BUILD, and
NO_UNITY_BUILD_SOURCES arguments to opt out of the unity build, and
to exclude some source files from unity build, respectively.
- qt_internal_add_executable
- qt_internal_add_module
- qt_internal_add_plugin
- qt_internal_add_tool
- qt_internal_extend_target
- qt_internal_add_common_qt_library_helper
- qt_internal_add_cmake_library
- qt_internal_add_simd_part
- Unity build is disabled by default in these:
- qt_internal_add_test
- qt_internal_add_test_helper
- qt_internal_add_benchmark
- qt_internal_add_3rdparty_library
- qt_update_ignore_pch_source also excludes the files from unity_build
Pick-to: 6.5
Task-number: QTBUG-109394
Change-Id: I5d0e7df633738310a015142a6c73fbb78b6c3467
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
This replaces the qt_parse_all_arguments macro with the built-in
`cmake_parse_arguments(PARSE_ARGV`. In addition, a new function,
_qt_internal_validate_all_args_are_parsed, can be used to check whether
any _UNPARSED_ARGUMENTS have been passed to the function.
Fixes: QTBUG-99238
Change-Id: I8cee83dc92dc6acdaaf747ea6ff9084c11dc649b
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
When we use MSVC to build static libraries, enabling LTCG will
generate very large output, for example, Qt's bundled 3rd party
libraries can be greater than 100MB per file (some of them even >200MB!).
This is not good if we are building a shared version of Qt and
enabling LTCG at the same time. On Windows Qt's bundled 3rd party
dependencies will be built as static libraries and they will make
the final Qt package way too large. From my side, if I only build
a release version, the package size is usually around 500MB but
when LTCG is enabled, it become over 2GB. The exe and dlls' size
don't vary much, but there are many large static libraries.
Fixes: QTBUG-108719
Change-Id: Ic521f500b9c24389524e96a8cdc2e7b3427b51a9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Amir Masoud Abdol <amir.abdol@qt.io>
This allows one to add an extra set of directories to the build, but let
the compiler know that they are system paths (that is, the compiler
should refrain from emitting warnings in code found there). This extends
INCLUDE_DIRECTORIES and is by necessity a private include set.
Will be used by qtquick3dphysics, due to its PhysX dependency.
Change-Id: I76216ced393445a4ae2dfffd1729c556db0cce3d
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Needed to get rid of warnings like
CMake Warning at cmake/QtFindPackageHelpers.cmake:406
(message): Could not find target Qt6::BundledLibYaml to query
its package name. Defaulting to package name Qt6BundledLibYaml.
Consider re-arranging the project structure to ensure
the target exists by this point.
which were introduced with the integration
of dffcc2370e43722afb25d7aec7cd9d6a36f61e03 in qtbase.
This happened because we never set and exported the package names
for 3rd party bundled libs.
So export the package name as well as "is 3rd party lib" value.
Amends 6235f7fa62aab5c0e002fa2f93f46508f38b5472
Pick-to: 6.4
Task-number: QTBUG-104998
Change-Id: I25fc1ffef766198974025e0097bced1cca4dd28d
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
When recording which package version to look for in
QtFooModuleDependencies.cmake and other files like it,
instead of using PROJECT_VERSION, use the version of the
package that contains the dependency.
For example if we're hypothetically building the qtdeclarative repo
from the 6.4 branch, against an installed 6.2 qtbase, then
the Qt6QmlModuleDependencies.cmake file will have a
find_package(Qt6Core 6.2) call because qtdeclarative's
find_package(Qt6Core) call found a 6.2 Core when it was configured.
This allows switching the versioning scheme of specific Qt modules
that might not want to follow the general Qt versioning scheme.
The first candidate would be QtWebEngine which might want to
follow the Chromium versioning scheme, something like
Qt 6.94.0 where 94 is the Chromium major version.
Implementation notes.
We now record the package version of a target in a property
called _qt_package_version. We do it for qt modules, plugins,
3rd party libraries, tools and the Platform target.
When we try to look up which version to write into the
QtFooModuleDependencies.cmake file (or the equivalent Plugins and
Tools file), we try to find the version
from a few sources: the property mentioned above, then the
Qt6{target}_VERSION variable, and finally PROJECT_VERSION.
In the latter case, we issue a warning because technically that should
never have to happen, and it's a bug or an unforeseen case if it does.
A few more places also need adjustments:
- package versions to look for when configuring standalone
tests and generating standalone tests Config files
- handling of tools packages
- The main Qt6 package lookup in each Dependencies.cmake files
Note that there are some requirements and consequences in case a
module wants to use a different versioning scheme like 6.94.0.
Requirements.
- The root CMakeLists.txt file needs to call find_package with a
version different from the usual PROJECT_VERSION. Ideally it
should look for a few different Qt versions which are known to be
compatible, for example the last stable and LTS versions, or just
the lowest supported Qt version, e.g. 6.2.6 or whenever this change
would land in the 6.2 branch.
- If the repository has multiple modules, some of which need to
follow the Qt versioning scheme and some not,
project(VERSION x.y.z) calls need to be carefully placed in
subdirectory scopes with appropriate version numbers, so that
qt_internal_add_module / _tool / _plugin pick up the correct
version.
Consequences.
- The .so / .dylib names will contain the new version, e.g. .so.6.94
- Linux ELF symbols will contain the new versions
- syncqt private headers will now exist under a
include/QtFoo/6.94.0/QtFoo/private folder
- pri and prl files will also contain the new version numbers
- pkg-config .pc files contain the new version numbers
- It won't be possible to write
find_package(Qt6 6.94 COMPONENTS WebEngineWidgets) in user code.
One would have to write find_package(Qt6WebEngineWidgets 6.94)
otherwise CMake will try to look for Qt6Config 6.94 which won't
exist.
- Similarly, a
find_package(Qt6 6.4 COMPONENTS Widgets WebEngineWidgets) call
would always find any kind of WebEngine package that is higher than
6.4, which might be 6.94, 6.95, etc.
- In the future, if we fix Qt6Config to pass EXACT to its
subcomponent find_package calls,
a find_package(Qt6 6.5.0 EXACT COMPONENTS Widgets WebEngineWidgets)
would fail to find WebEngineWidgets, because its 6.94.0 version
will not be equal to 6.5.0. Currently we don't pass through EXACT,
so it's not an issue.
Augments 5ffc744b791a114a3180a425dd26e298f7399955
Task-number: QTBUG-103500
Change-Id: I8bdb56bfcbc7f7f6484d1e56651ffc993fd30bab
Reviewed-by: Michal Klocek <michal.klocek@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
Output names of static libraries might be different from target names.
For example, the library name of Qt6::DeviceDiscoverySupportPrivate is
"Qt6DeviceDiscoverySupport.lib", and the library name of
Qt6::QTlsBackendCertOnlyPlugin is "qcertonlybackend.lib".
This commit make pdb files names consistent with the library names.
And make sure we have set correct OUTPUT_NAME property before calling
qt_set_common_target_properties()/qt_internal_set_compile_pdb_names().
Change-Id: Idb3cacd7a46a4f298fd584b927b5d726956faea8
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
When configuring a static Qt with the -qt-zlib option and the build
system creates a 3rd party header module QtZlib, syncqt
does not generate a QtZlib header file that would include all its
public headers.
Then when the QtSvgDepends header is generated, it would add an
#include <QtZlib> which would break compilation of the QtSvg PCH
file (which compiles QtSvgDepends).
We have logic to exclude addition of headers from regular 3rd party
static libraries, but not header only 3rd party libraries.
Adjust the code to handle header-only 3rd party libraries, as well as
make sure it works across repos by exporting the relevant properties.
As a drive-by, also rename and export some other informational
properties.
Amends af00402d6446c0f8f085a2a482fc83c4318aa457
Amends 6fdeaea24f9035ad53ba2548a9467b3264cf01ad
Amends be2745e4788cecb0d3122081e3328e4b66923609
Pick-to: 6.2 6.3
Change-Id: I087f50b193dd845e4a5ec906e8851d63122faf80
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
For static builds we need 3rdparty headers to be installed.
Leaf modules like qtwebengine needs 3rdparty libs and header for
zlib, freetype, harfbuzz, png, jpeg. Without those the Chromium bundled
versions are used, however it might end up badly if qt has already
bundled one.
Introduce new header only modules with additional arguments for
qt_internal_add_module:
* EXTERNAL_HEADERS to pick exactly which headers are public
* EXTERNAL_HEADERS_DIR to include whole directory preserving the
files directory structure
Fix qtsync so it keep directory structure for all non-qt modules when
syncing headers and do not generate warnings for headers files.
Task-number: QTBUG-87154
Task-number: QTBUG-88614
Change-Id: If1c27bf8608791cd4e0a21839d6316a445a96e9f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
When building Qt repos, all find_package(Qt6) calls request a
PROJECT_VERSION version which is set in .cmake.conf via
QT_REPO_MODULE_VERSION.
This means trying to configure qtsvg from a 6.3 branch using a
6.2 qtbase won't work, because qtsvg will call find_package(Qt6 6.3)
and no such Qt6 package version exists.
There are certain scenarios where it might be useful to try to do
that though.
One of them is doing Qt development while locally mixing branches.
Another is building a 6.4 QtWebEngine against a 6.2 Qt.
Allow to opt out of the version check by configuring each Qt repo
with -DQT_NO_PACKAGE_VERSION_CHECK=TRUE. This setting is not
recorded and will have to be set again when configuring another
repo.
The version check will also be disabled by default when configuring
with the -developer-build feature. This will be recorded and embedded
into each ConfigVersion file.
If the version check is disabled, a warning will be shown mentioning
the incompatible version of a package that was found but that package
will still be accepted.
The warning will show both when building Qt or using Qt in a user
project.
The warnings can be disabled by passing
-DQT_NO_PACKAGE_VERSION_INCOMPATIBLE_WARNING=TRUE
Furthermore when building a Qt repo, another warning will show when an
incompatible package version is detected, to suggest to the Qt builder
whether they want to use the incompatible version by disabling the
version check.
Note that there are no compatibility promises when using mixed
non-matching versions. Things might not work. These options are only
provided for convenience and their users know what they are doing.
Pick-to: 6.2
Fixes: QTBUG-96458
Change-Id: I1a42e0b2a00b73513d776d89a76102ffd9136422
Reviewed-by: Craig Scott <craig.scott@qt.io>
Both the compiler and linker -fapplication-extension flag should only
be applied when building Qt's libraries (not executables).
It's up to the user project whether their code will be restricted with
application-extension-only APIs.
In qmake that can be achieved by adding to the qmake project
CONFIG += app_extension_api_only
In CMake it can be achieved by either adding the compiler and link flags
in the project directly (using target_X_options) or by setting the
appropriate setting in the Xcode project when using the Xcode
generator.
Amends e189126f1ae1d2fa2ad0f95ee2c4aa72c770a97b
Pick-to: 6.2
Task-number: QTBUG-95199
Change-Id: Ie7a764d460a89c7650391abff0fcc5abfcabef64
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Make QT_USE_BUNDLED_ INTERNAL to hide them from GUI like QtCreator's
CMake configurator.
Pick-to: 6.1 6.2
Change-Id: Id9dcee31c69b579bbe38611cabb98e46550b0e89
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
It was copy-pasted (presumably from plugin handling code)
when initially introduced but was never used.
Change-Id: I571738b9f5269ca038f5931a773aa5c2c66aafbc
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Internally it uses a new _qt_internal_add_library function (similar
how we have qt_add_executable and _qt_internal_add_executable) as well
as finalizer code line the executable case.
_qt_internal_add_library forwards arguments to add_library with some
Qt specific adjustments to the selected default target type (based on
whether Qt is configured as static or shared).
The new _qt_internal_add_library is now used in qt_add_plugin as well
as some internal library creating functions like
qt_internal_add_module.
This reduces some duplication of file name adjustments across
functions and creates a central point for creation of Qt-like
libraries (for some definition of Qt-like).
Change-Id: Id9a31fe6bf278c8c3bb1e61e00a9febf7f1a2664
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Since we add 3rdparty libraries to the set of the Qt modules, they are
treated as the Qt modules by the depenedcy helper as well. So give them
_qt_module_interface_name to fix dependency helper.
Amends 425ff34aa10a02524f2d52f544dc00b539ef9a26
Change-Id: I5898c1c90156de1878aeeef5a0924349b44c50fa
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Instead of compiling the plugin initializers as part of a user
project, pre-compile them as object libraries while building Qt.
The installed object libraries can then be used with
target_sources(qt_module INTERFACE $<TARGET_OBJECTS:plugin_init>)
so that they are linked into the final executable or shared library
via qt module usage requirement propagation.
This reduces the build times of user projects.
The link line placement of the object files should be correct for all
linux-y linkers because the only dependency for the object files is
Core and the Gui -> plugin -> Gui -> Core cycle does not hamper that
from empirical observations.
As a consequence of the recent change not to link plugin initialization
object files into static libraries, as well not having to compile the
files in user projects, we can get rid of the
_qt_internal_disable_static_default_plugins calls in various places.
A side note.
Consider a user static library (L) that links to a Qt static library
(Gui) which provides plugins (platform plugins).
If there is an executable (E) that links to (L), with no direct
dependency to any other Qt module and the intention is that the
executable will automatically get the platform plugin linked,
then (L) needs to link PUBLIC-ly to (Gui) so that the plugin usage
requirements are propagated successfully.
This is a limitation of using
target_sources(qt_module INTERFACE $<TARGET_OBJECTS:plugin_init>)
which will propagate object files across static libraries only if
qt_module is linked publicly.
One could try to use
target_link_libraries(qt_module
INTERFACE $<TARGET_OBJECTS:plugin_init>)
which preserves the linker arguments across static libs even if
qt_module is linked privately, but unfortunately CMake will lose
dependency information on Core, which means the object files might be
placed in the wrong place on the link line.
As far as I know this is a limitation of CMake that can't be worked
around at the moment.
Note this behavior was present before this change as well.
Task-number: QTBUG-80863
Task-number: QTBUG-92933
Change-Id: Ia99e8aa3d32d6197cacd6162515ac808f2c6c53f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Remove code duplication by calling qt6_add_plugin() from
qt_internal_add_plugin().
Separate out the public and internal arguments for the
variables defined in QtBuild.cmake for these functions.
Provide them via commands instead for greater robustness.
This separation allows other Qt repos to access the appropriate
set of keywords where they define commands that forward
on to *_add_plugin() in their implementations. Retain
the old variables for now to simplify the integration
steps for updating other repos. The old variables can
be removed once there are no more references left to
them in any repo.
Task-number: QTBUG-88763
Pick-to: 6.1
Change-Id: I0105523afd95995923bd20fc963d245bbb15d34d
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
In static builds, we cannot allow any part of the main build to make a
call to find_package(Qt6...) where such a call may load a
Qt6*Plugins.cmake file. That would add additional dependencies to the
main module targets, setting up a circular dependency in the set of
*Config.cmake files which cannot be resolved. This scenario would be
triggered by per-repo builds or user projects.
But Qt's tools and other executables still need to load some plugins
in static builds. Sometimes a platform plugin may be enough, other
times we may want all supportable plugins (e.g. Qt Designer).
Therefore, add all plugins we can identify as relevant for an
executable that is part of the Qt build, but add them directly to the
executable without affecting the linking relationships between the
main module libraries.
Also remove the now unnecessary check for QT_BUILD_PROJECT_NAME in
top level builds because there should be no difference between per-repo
and top level builds any more (as far as linking static plugins is
concerned).
Examples that build as part of the main build will still build
successfully after this change, but they will not run if they require
a platform plugin. Examples need to be moved out to a separate build
where they can call find_package(Qt6) without QT_NO_CREATE_TARGETS
set to TRUE to be runnable (see QTBUG-90820).
Fixes: QTBUG-91915
Pick-to: 6.1
Change-Id: I8088baddb54e394ca111b103313596d6743570ba
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Add internal function to cleanup compiler flags out of the
CMAKE_xxx_FLAGS_xxx variables. Use introduced interface to clear
the '/EHsc' flag for the MSVC compiler family. This adjusts the
CMake behavior to the qmake one.
Change the 'EXCEPTIONS' option handling in helper functions. Add
ability to add enabling and disabling exception flags. Previously
it was only possible to add disabling exception flags.
Fixes: QTBUG-89952
Change-Id: I60d47660a97ae9b5a1d1f4107d352c9e97890144
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
There is no point in generating cpp files containing Q_IMPORT_PLUGIN()
macro calls for non-executable targets like modules, plugins and object
libraries in a static Qt build.
It causes unnecessary compiling of 10+ files for each of those targets.
In a static Qt build, plugin imports should only be done for executables,
tools and applications.
Pick-to: 6.0
Change-Id: Ied90ef2f6d77a61a093d393cfdf94c400284c4f0
Reviewed-by: Craig Scott <craig.scott@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
When a CMake release introduces a new policy that affects most Qt
modules, it may be appropriate to make each module aware of that newer
CMake version and use the NEW policy without raising the minimum CMake
version requirement. To reduce the churn associated with making that
change across all Qt modules individually, this change allows it to be
updated in a central place (qtbase), but in a way that allows a Qt
module to override it in its own .cmake.conf file if required (e.g. to
address the issues identified by policy warnings at a later time). The
policies are modified at the start of the call to
qt_build_repo_begin().
For commands defined by the qtbase module, qtbase needs to be in
control of the policy settings at the point where those commands are
defined. The above mechanism should not affect the policy settings for
these commands, so the various *Config.cmake.in files must not specify
policy ranges in a way that a Qt module's .cmake.conf file could
influence.
Starting with CMake 3.12, policies can be specified as a version range
with the cmake_minimum_required() and cmake_policy() commands. All
policies introduced in CMake versions up to the upper limit of that
range will be set to NEW. The actual version of CMake being used only
has to be at least the lower limit of the specified version range.
This change uses cmake_minimum_required() rather than cmake_policy()
due to the latter not halting further processing upon failure.
See the following:
https://gitlab.kitware.com/cmake/cmake/-/issues/21557
Task-number: QTBUG-88700
Pick-to: 6.0
Change-Id: I0a1f2611dd629f847a18186394f500d7f52753bc
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
For shared build, Qt6BundledHarfbuzz.lib and Qt6BundledPcre2.lib are not
installed. But their pri files(qt_ext_harfbuzz.pri, qt_ext_pcre2.pri)
and debug info files(Qt6BundledHarfbuzz.pdb, Qt6BundledPcre2.pdb) are
still installed. These files should not be installed too.
Pick-to: 6.0.0 6.0
Change-Id: I3e54bec01d94ee3897b485a982d01b24edc602aa
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Now all shared libraries and executables will get .debug files on
the platforms that support FEATURE_separate_debug_info
With the directory property _qt_skip_separate_debug_info certain
targets can retain the debug symbols in the binary e.g. lupdate with
MinGW 8.1.0 will cause objcopy / strip to fail.
Fixes: QTBUG-87015
Change-Id: I03b106e68ef0a42011d1ba641e6f686b2e7b7fb4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Supports installing linker generated debug info for shared libraries
and executables, as well as compiler generated debug info for static
libraries.
Works with Ninja Multi-Config as well, with the caveat that the files
are installed optionally, aka the install rule will not error out if
a pdb file is not present. This is necessary, because it's not
possible to create per-config install rules properly.
Fixes: QTBUG-87006
Change-Id: I95e91a6557eb0ee0f882103be54cd38795c349f7
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Building a user project in Release configuration against a Qt built with
CMAKE_CONFIGURATION_TYPES=RelWithDebInfo;Debug led to the user project
being linked against the Debug Qt libraries. This is especially painful
with MSVC where debug and release runtimes are incompatible.
We now create *AdditionalTargetInfo.cmake files along the
exported *Targets.cmake files that set the IMPORT_*_<CONFIG> properties
to the values of the release config Qt was built with.
User projects built with an unknown
configuration (CMAKE_BUILD_TYPE=ArbitraryName) will link against a
release Qt. This can be controlled by setting the variable
QT_DEFAULT_IMPORT_CONFIGURATION to, for example, DEBUG in the user
project.
Fixes: QTBUG-86743
Change-Id: I12c4b065a9845c7317f6acddab46b649f2732c9e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Offer compatibility wrapper functions until we update all of the Qt
repos to use the new names.
Task-number: QTBUG-86815
Change-Id: I5826a4116f52a8509db32601ef7c200f9bd331de
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
QtBuild.cmake is huge. Split it.
Move module, plugin, tools, executables and test related functions out
of QtBuild.cmake into separate files.
Do the same for many other things too.
An additional requirement is that all the new Helpers files only
define functions and macros.
No global variable definitions are allowed, nor execution of commands
with side effects.
Some notes:
qt_install_qml_files is removed because it's dead code.
Some functions still need to be figured out, because they are
interspersed and depend on various global state assignments.
Task-number: QTBUG-86035
Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
