[WPE] Qt API build failure on 2.31.90

• Component: WPE WebKit
• Status: RESOLVED FIXED

[Bastian Krause]

When configuring wpewebkit 2.31.90 (with libwpe 1.9.90, wpebackend-fdo 1.9.1) with -DENABLE_WPE_QT_API=ON and then building with cmake, I stumble upon:

[...]
[4722/4722] Linking CXX shared library lib/libqtwpe.so
FAILED: lib/libqtwpe.so 
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView
Backend.cpp.o: in function `WPEQtViewBackend::create(QSizeF const&, QPointer<QOpenGLContext>, void*, QPointer<WPEQtView>)':
WPEQtViewBackend.cpp:(.text+0x382): undefined reference to `WTF::fastMalloc(unsigned int)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView
Backend.cpp.o: in function `WPEQtViewBackend::~WPEQtViewBackend()':
WPEQtViewBackend.cpp:(.text+0xeaa): undefined reference to `WTF::fastFree(void*)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView.cpp.o: in function `WPEQtView::notifyLoadFailedCallback(_WebKitWebView*, WebKitLoadEvent, char const*, _GError*, WPEQtView*)':
WPEQtView.cpp:(.text+0x1ce): undefined reference to `WTF::fastMalloc(unsigned int)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView.cpp.o: in function `WPEQtView::notifyLoadChangedCallback(_WebKitWebView*, WebKitLoadEvent, WPEQtView*)':
WPEQtView.cpp:(.text+0xbf6): undefined reference to `WTF::fastMalloc(unsigned int)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView.cpp.o: in function `WPEQtView::runJavaScript(QString const&, QJSValue const&)':
WPEQtView.cpp:(.text+0x100e): undefined reference to `WTF::fastMalloc(unsigned int)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtView.cpp.o: in function `jsAsyncReadyCallback(_GObject*, _GAsyncResult*, void*)':
WPEQtView.cpp:(.text+0x12ee): undefined reference to `WTF::fastFree(void*)'
/opt/OSELAS.Toolchain-2020.08.0/arm-v7a-linux-gnueabihf/gcc-10.2.1-clang-10.0.1-glibc-2.32-binutils-2.35-kernel-5.8-sanitized/lib/gcc/arm-v7a-linux-gnueabihf/10.2.1/../../../../arm-v7a-linux-gnueabihf/bin/ld: Source/WebKit/CMakeFiles/qtwpe.dir/UIProcess/API/wpe/qt/WPEQtViewLoadRequest.cpp.o: in function `WPEQtViewLoadRequest::~WPEQtViewLoadRequest()':
WPEQtViewLoadRequest.cpp:(.text+0xf6): undefined reference to `WTF::fastFree(void*)'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

[Bastian Krause]

This is also broken in the latest stable wpewebkit 2.32.0.

[Marco Felsch]

Created attachment 426400 [details]
Patch

This patch reverts the WTF usage since this code has nothing to do with webkit internals at all.

[Philippe Normand]

Comment on attachment 426400 [details]
Patch

LGTM. Can you add these files in a new allow-list for the style-checker? Should be in Tools/Scripts/webkitpy/style/checker.py

[Marco Felsch]

Yep, I can add those files.

[Marco Felsch]

Created attachment 426421 [details]
Patch

This adds the style checker allow-list.

[Philippe Normand]

Comment on attachment 426421 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=426421&action=review

> Tools/Scripts/webkitpy/style/checker.py:167
> +      os.path.join('Source', 'WebKit', 'UIProcess', 'API', 'wpe', 'qt')],

I think this works only for files, not individual directories.

[Marco Felsch]

(In reply to Philippe Normand from comment #6)
> Comment on attachment 426421 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=426421&action=review
> 
> > Tools/Scripts/webkitpy/style/checker.py:167
> > +      os.path.join('Source', 'WebKit', 'UIProcess', 'API', 'wpe', 'qt')],
> 
> I think this works only for files, not individual directories.

I've tested it and saw no more errors after applying it.

[Marco Felsch]

But.. My indent is wrong.. Damn

[Marco Felsch]

I don't see how this failures are related to my commit

[Philippe Normand]

Please fix the style EWS. The wincairo failure looks indeed unrelated.

[Marco Felsch]

(In reply to Philippe Normand from comment #10)
> Please fix the style EWS. The wincairo failure looks indeed unrelated.

I followed the style within the checker.py list. Don't see what I did wrong.

[Philippe Normand]

(In reply to Marco Felsch from comment #11)
> (In reply to Philippe Normand from comment #10)
> > Please fix the style EWS. The wincairo failure looks indeed unrelated.
> 
> I followed the style within the checker.py list. Don't see what I did wrong.

Me neither. This pep thing is quite pedantic.

Anyway, the fix I found is to dedent all 4 lines by one space. No idea why:

    ([
     # The WPE QT wrapper lib is not part of Webkit and therefore don't need to statically
     # link the WTF framwork. Instead it uses the standard alloc mechanism.
     os.path.join('Source', 'WebKit', 'UIProcess', 'API', 'wpe', 'qt')],
     ["-runtime/wtf_make_unique"]),

You can run Tools/Scripts/check-webkit-style locally btw.

[Philippe Normand]

Comment on attachment 426421 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=426421&action=review

> Tools/Scripts/webkitpy/style/checker.py:166
> +      # link the WTF framwork. Instead it uses the standard alloc mechanism.

And fix the framwork typo while you're at it ;)

[Marco Felsch]

Created attachment 426535 [details]
Patch

Now the style is fixed :)

[Marco Felsch]

(In reply to Philippe Normand from comment #13)
> Comment on attachment 426421 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=426421&action=review
> 
> > Tools/Scripts/webkitpy/style/checker.py:166
> > +      # link the WTF framwork. Instead it uses the standard alloc mechanism.
> 
> And fix the framwork typo while you're at it ;)

Did that as well.

[EWS]

/Volumes/Data/worker/Commit-Queue/build/Source/WebKit/ChangeLog neither lists a valid reviewer nor contains the string "Unreviewed" or "Rubber stamp" (case insensitive).

[Marco Felsch]

Sorry for the noise but how is fixed that failure..

[Philippe Normand]

Comment on attachment 426535 [details]
Patch

You should have left the "Reviewed by OOPS" lines...

[Philippe Normand]

https://webkit.org/contributing-code/#changelog-files

[Marco Felsch]

Created attachment 426547 [details]
Patch

Hopefully the last version...

[EWS]

commit-queue failed to commit attachment 426547 [details] to WebKit repository. To retry, please set cq+ flag again.

[EWS]

Committed r276308 (236790@main): <https://commits.webkit.org/236790@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 426547 [details].