On 01/03/2021 10:34, Daryl wrote:
Hi Lee,
Thanks for the message! I couldn't get the stringstream to work at all,
and when I searched up the errors somebody mentioned that C++11 support
was incomplete in 4.7?
Yes, I think 4.7 may have been close to the threshold of when C++11 was
being added so support may be sketchy. I know webkit now requires at
least 4.9 to support the full features that it uses.
So I then decided to try GCC8 in GCCSDK.
GCC 10.2 is the latest version available at autobuiler/develop/gcc, not
that it helps here much though. The idea is that autobuiler/develop/gcc
will always be the newest version in the autobuilder, and older versions
will be archived with their version number, like
autobuiler/develop/gcc8.
This meant I couldn't do my
build/debug cycle in RPCEmu as it needs VFP,
I find Sunfish/NFS the fastest method of transfer to keep the
build/debug cycle moving.
but I did get it to compile
once I had altered all references to wchar_t (which is specifically
disabled I noticed in the GCCSDK build. > It actually runs pretty well on
RISC OS itself but with one huge caveat. If I throw an exception, in
certain cases it crashes out with a library error. If I throw an
exception of type T and catch *exactly* type T then it works, but if I
force the exception to be caught in a parent function it crashes. I've
tried compiling with and without optimisations but with no luck.
C++ exceptions not handled when building on ARM32 · Issue #785 ·
android/ndk (github.com) <https://github.com/android/ndk/issues/785>
Searching brought up that link, which suggests something very similar.
ARM, armeabi and C++.
Any ideas? Everything else is working that I can see!
It seems there is a problem with C++ exceptions, and I see the above
example crashes. It looks like it branches to zero and that could be
a missing weak symbol. I'll have a closer look and try to figure out
what's going wrong.
Lee.
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