This patch adds the feature use_gold_linker to use the gold linker that
has been part of of GNU binutils since 2008. Gold links C++ libraries
much faster and use less memory.
The feature is autodetected when building Qt on Linux, but can be disabled
in configure. On MingW builds it is default off but can be enabled for
cross builds.
Change-Id: Icdd6ba2e706b2c791bcf44b6e718c2b7a5eb2218
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
GCC currently requires fat object files for static libraries, since the
linker would otherwise not load the .o file from the archive at all and
the linking would fail with a lot of undefined references. Clang on
Linux also needs this, but it has no equivalent flag, so enabling LTCG
for Clang on static libraries will result in linker error.
This commit does not add support for enabling it in configure. It can be
enabled on a per-project basis by doing CONFIG += ltcg or by passing
-config ltcg to qmake's command-line.
Change-Id: I52cf99f1ed9f1701e23a3b457ba3502fd28126ce
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
If the prefix isn't "m2" for the 2013 namespace, Visual Studio Update 2
won't open the document in the designer view. Even though there is
nothing technically wrong with the way it's currently done, change it to
"m2" to keep VS happy.
Change-Id: I62721114610de5396eb507828b39db89c1e96b1a
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Tweak qmake, add mkspecs for emulator and device, adjust the
manifest template for WP8.1, and add missing icons.
Change-Id: I7a6405fa85297ae4cc8522015274e65fb7a315a6
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
This matches the -ffunction-sections from bootstrap.pro, which tells the
compiler to create a section for each function. The -gc-sections option
tells the linker to drop what wasn't used (normally, it only drops
entire files).
Before (on Linux, built with -O3, no LTO):
text data bss dec hex filename
1746385 7920 3750 1758055 1ad367 bin/moc
1444101 6664 1894 1452659 162a73 bin/rcc
4407725 1568 4896 4414189 435aed bin/qmake
After:
text data bss dec hex filename
1131655 6520 3494 1141669 116ba5 bin/moc
1027043 5480 1766 1034289 fc831 bin/rcc
3578489 1656 5313 3585458 36b5b2 bin/qmake
Gain: 35% on moc, 28% on rcc, 19% on qmake
Before (on OS X):
__TEXT __DATA __OBJC others dec hex
1495040 12288 0 4294993008 4296500336 100176470 bin/moc
1265664 8192 0 4294983904 4296257760 10013b0e0 bin/rcc
5279744 81920 0 4297912320 4303273984 1007ec000 bin/qmake
After:
__TEXT __DATA __OBJC others dec hex
806912 8192 0 4294988132 4295803236 1000cc164 bin/moc
720896 8192 0 4294979764 4295708852 1000b50b4 bin/rcc
4841472 77824 0 4295580688 4300499984 100546c10 bin/qmake
Gain: 46% on moc, 43% on rcc, 8% on qmake.
Change-Id: Icc7cdc9fd6f5db15537b4adabaac7e7a27e539d4
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Move it from bootstrap.pro into qt_module.prf so it will apply to any
other bootstrapped libraries, like libQmlDevTools.
Variable called "SPLIT_SECTIONS" because -fdata-sections could be added
in the future, if it proves to be a benefit.
Change-Id: I3fbb004f111620a84e58e9112e9bce3afd95631e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
that is, make it match the shell used by the make command.
this is unlike DIRLIST_SEPARATOR and DIR_SEPARATOR, which always match
the actual system shell.
Change-Id: I0fb277d75b32be029808623a3b77e1358c4e265e
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
This allows the developer to provide a list of languages to the manifest
by listing them in WINRT_MANIFEST.languages. It also allows setting the
default language with WINRT_MANIFEST.default_language.
Task-number: QTBUG-38557
Change-Id: I5cb94c9f45146e3068d0833b9e669dc17dca14b2
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
This is the right configuration of the platform within the mkspecs.
It enables the usage of additional features like the automatic
detection of platform specific prf files.
Change-Id: I2f19265d283e47c62455128f217bc44ba88cdc98
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Visual Studio does not like empty dependencies block in manifest XML.
At least my Visual Studio 2013 fails to open visual manifest editor for
XML containing the following block:
<Dependencies>
</Dependencies>
If the block is removed or if the block has one or more PackageDependency
entries the editor accepts it.
Moved the <Dependencies> block to prf, so that it is only written when
project really has dependencies. Also <Capabilities> block is moved to prf
for consistency. On Windows Phone, where the <Capabilities> block is
required, it is kept in the output even if it is empty.
Change-Id: I531180d0081e4612f75be54f3813831857f1ed43
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
This patch adds a new config option to qmake to enable full optimization
where it makes sense. This currently is supported on all gcc like
compilers by exchanging -O2 for -O3.
In qtbase it is used to enable full optimizations on qtcore and qtgui
and in a later patch can be used to replace similar existing logic in
QtWebKit's WTF and JavaScriptCore modules.
This fixes a performance regression from gcc 4.7 to 4.8 in the software
renderer.
An aliasing error in qregion.cpp which was exposed by more aggresive
optimization has been solved as well.
Change-Id: Ic2c6c41b79cb3846212b40e7bcc11ff492beb27f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
ARM and x86 platform defines are identical, so they can be kept in a
common file.
Change-Id: I6f79cadb2e5ce265e4a5a7a0806379dc8793e539
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
This comment is wrong and should be removed. The manifest is always
generated.
Change-Id: I281737dd6a358380fb557063eadae88909f5078b
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
This feature (package_manifest) generates a basic application manifest
from a template provided by the mkspec or the developer. It is meant to
deliver an out-of-the-box build experience without attempting to
exhaustively cover all manifest options. It is meant to be a starting
point which allows the developer to customize the manifest further. It
also becomes the default package manifest generator for Windows Phone,
replacing autogen_wmappmanifest.
Common variables, such as the target executable, are populated by qmake
in the newly created manifest. Default icons are also created if needed,
as the build will fail without them. The input manifest can be set by
assigning a file name to WINRT_MANIFEST. Additional options are
documented in the .prf file. If an existing (non-generated) manifest is
already in the directory, it will not be overwritten.
Task-number: QTBUG-35328
Change-Id: I57576a17ff9d2b564c0828f815949cb26d276bfd
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Dwarf-2 is treated as deprecated (at best) by llvm, and does not support
a lot of C++ language features. Most notably, it does not support
namespaces and template parameters. By not specifying the dwarf version,
the compiler can decide which version to use.
Change-Id: Ic32f9101c4db0f06a8ace8f5e04af9236d01598e
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
This commit will make qmake use -isystem automatically for any
compilers that declare support for it for any paths that are listed in
QMAKE_DEFAULT_INCDIRS.
Change-Id: I36fefc6d5bba61671f65669f0ea42704b3c3cf31
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
the diff -w for this commit is empty.
Started-by: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: I77bb84e71c63ce75e0709e5b94bee18e3ce6ab9e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Using wmain causes the problem that the linker seems to create some code
around it, which calls ExitProcess. That function however is forbidden by
the Windows Store Certification process and hence you cannot publish an
application currently. This does not apply to Windows Phone, which links
in such a way that this problem does not occur there.
With WinMain as the entry point this does not happen and also is the
default entry point. Testing locally shows that certification goes fine.
Since it does not pass the full command line string, the C-runtime method
__getmainargs is used instead. This also gives access to any environment
strings which may be passed.
Note that MSDN states that this function should only be used for desktop
applications. For XAML/C++ scenarios there is no entry function at all,
but rather the App object gets instantiated in the default template. But
this only works for XAML itself and not for plain C++ applications,
probably some other entry wrapper is created on the fly here.
Done-with: Andrew Knight <andrew.knight@digia.com>
Change-Id: I8a118eddf6cfeddeca7d676267e979af17123e02
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Those flags are required to pass the Windows Store App Certification
process. Otherwise apps are not allowed to be published.
The SAFESEH option is only required for x86.
According to documentation APPCONTAINER only talks about the
executable, but when running through the certification, the Qt modules
are reported to be errornous as well.
Change-Id: I5450687dcd5bc537149e331332e253c4617df55d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
it's very unlikely that these artifacts will need rebuilding during a
debugging session (these pdbs are meant to support crash dump analysis).
Change-Id: Ia8138f9298355b402d8dd3f042f85b669693de64
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Compared to other platforms there is no concept of a console
application in WinRT. Hence all applications need to be UI
applications and use winmain.
Furthermore winmain takes care of launch arguments to be
properly converted to arguments passed to user's main().
There is a chicken and egg problem with config.tests as
compilation needs to have an existing entry point which is not
available at configure time.
Hence hardcode the entry point to main for configuring to WinRT.
Those tests are pure compile tests, so the logic of the test
does not change.
Change-Id: I4d3186691a8440845c24b2529cc9646e86dfd8da
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Winmd is not used, so there is no reason to embed it.
Change-Id: I0820256aecd9c3c71b0b0c8afa53941b03f97363
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
the problem is that there is no sed command on windows ... so build it
into qmake and invoke that from the generated makefiles. cmake does the
same, after all. ^^
Task-number: QTBUG-33794
Change-Id: Ib7077e18acbc5edd79f714c5779a5ed31ea6c093
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Without that define here moc cannot handle qsystemdetection
properly. While having to touch the mkspecs I also removed
the no longer needed WINRT define.
Change-Id: I0609bd173c7bc14ccdd862afc777d7793dda02b8
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Using the same approach as, wince qfunctions_winrt
is introduced to replace functions not available
on Windows Runtime by their successor functions/
equivalents.
Additionally this functionality is used for implementing
a fake environment because WinRT does not support
getting/setting of environment variables. The approach
here is also the same that is used for wince.
Change-Id: Ifc3b6b796ab8e8ea41456f4c929f9c3f65f24a0e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
WinRT passes the executable and Appx server info to the CRT main, and
supports several additional activation arguments as well. This handles the
arguments passed to main as well as the case where a modern app is
launched from an external application (e.g. Qt Creator).
Task-number: QTBUG-30198
Change-Id: Ia843e98c7843d5705f5f6d1c809de0b6bcdb5d26
Done-with: Kamil Trzcinski
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
This gives us better consistency across the Qt ecosystem.
Change-Id: Ie12ebb6e8c826ed2e0445eb37de0b79595da41c2
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
... except for MAKEFILE_GENERATOR = XCODE. This means the spec no longer
hard-codes g++, and will work regardless of whether the default spec was
clang or g++.
This require us to set QMAKE_XCODE_GCC_VERSION properly for GCC, so that
additional compilation flags passed by Xcode will match the actual
compiler used.
Task-number: QTBUG-31713
Change-Id: If65140a7471cd16f483036742f1d5b86d0485c52
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
We'll use nm to get the listing of symbols in the next commit.
The -P option is "portable", which sounds like a good idea. I don't
have access to any of the commercial Unix systems, but I do remember
them printing a different format than GNU binutils's nm.
Change-Id: If6f80624bedaf2b1dabf608e16aa097d9910d739
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
