Details
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Bug
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Resolution: Unresolved
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P4: Low
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None
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5.15.2
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None
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qt 5.15.2, PySide Qt 5.15.2, clang 11.0
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Linux/X11
Description
Using shiboken2 to generate python's binding for Qt (pyside) fails if crossbuild is requested.
This happens for some target platform like `arm7l-glibc`, because shiboken2 calls the crossbuild clang compiler as expected, but it fails: see log below.
(full build log here: https://github.com/void-linux/void-packages/pull/26962/checks?check_run_id=1584350893)
[ 1%] Building CXX object libpyside/CMakeFiles/pyside2.dir/globalreceiverv2.cpp.o qt.shiboken: (core) CLANG builtins includes directory: /usr/armv7l-linux-gnueabihf/usr/lib/clang/11.0.0/include (core) clang_parseTranslationUnit2(0x0, cmd[14]=-isystem/usr/armv7l-linux-gnueabihf/usr/lib/clang/11.0.0/include -fPIC -Wno-constant-logical-operand -std=c++14 -I/builddir/pyside-setup-opensource-src-5.15.2/sources/pyside2/PySide2 -I/usr/armv7l-linux-gnueabihf/usr/include/qt5 -I/usr/armv7l-linux-gnueabihf/usr/include/qt5 -I/usr/armv7l-linux-gnueabihf/usr/include/qt5/QtCore -I/usr/armv7l-linux-gnueabihf/usr/lib/qt5/mkspecs/linux-g++ -I/usr/armv7l-linux-gnueabihf/usr -I/usr/armv7l-linux-gnueabihf/usr/include /tmp/QtCore_global_cqCVQJ.hpp "-DQT_ANNOTATE_ACCESS_SPECIFIER(a)=__attribute__((annotate(#a)))" "-DQT_ANNOTATE_CLASS(type,...)=static_assert(sizeof(#__VA_ARGS__),#type);") /usr/armv7l-linux-gnueabihf/usr/include/gnu/stubs.h:7:11: fatal error: 'gnu/stubs-soft.h' file not found
Unfortunately, calling the crossbuild clang compiler this way is not enough.
The error below might be fixed if specifying the target's platform to clang, like option `-target armv7l-linux-gnueabihf`.
Indeed, this makes defining specific glibc macro for this platform that is needed : defining macro ` __ARM_PCS_VFP` in this case makes `include/gnu/stubs.h` choose `gnu/stubs-hard.h` instead of `gnu/stubs-soft.h`
$ clang -target armv7l-linux-gnueabihf -dM -E - < /dev/null | grep
ARM_PCS_VFP#define __ARM_PCS_VFP 1
A workaround might be add an option to shiboken2 to pass some clang options.
Attachments
Issue Links
- relates to
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PYSIDE-802
Enable PySide/Shiboken cross compilation for different targets.
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- Closed
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Gerrit Reviews
| For Gerrit Dashboard: PYSIDE-1477 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 330665,2 | shiboken6: Use initializer lists for option descriptions | dev | pyside/pyside-setup | Status: MERGED | +2 | 0 |
| 330666,2 | shiboken6: Refactor parsing project files | dev | pyside/pyside-setup | Status: MERGED | +2 | 0 |
| 330667,3 | shiboken6: Enable setting clang options | dev | pyside/pyside-setup | Status: MERGED | -1 | 0 |
| 330697,2 | shiboken6: Refactor options parsing | dev | pyside/pyside-setup | Status: MERGED | +2 | 0 |