[oi-dev] Gimp and G++10 issue

[Carsten Grzemba]

Am 20.01.23 23:39 schrieb Bob Friesenhahn  <bfriesen at simple.dallas.tx.us>: 
> 
> On Fri, 20 Jan 2023, Carsten Grzemba via oi-dev wrote:
> >
> >If libc.so.1 the only involved C code shared object, would that mean that libc has to build with gcc10 and option -fexceptions?
> 
> That would depend on who is calling who. Normally the C/C++ run-time arranges to call a main() routine which is not part of libc. If a shared library is involved then shared library initializer functions may be called and I am not sure what code is responsible for that. If the C++ code has static objects then the C++ run-time needs to assure that those are constructed before main() is called.
> 

 
in this case GCC/G++ 10 runtime
 
x00007fffade26a30 0x00007fffadfa0234 Yes /usr/lib/64/libexiv2.so.27
0x00007fffad9038b0 0x00007fffada061fa Yes /usr/gcc/10/lib/amd64/libstdc++.so.6
0x00007fffaf3a6820 0x00007fffaf3d2f42 Yes (*) /lib/64/libm.so.2
 Yes (*) /lib/64/librt.so.1
0x00007fffaf4381f0 0x00007fffaf4491bc Yes /usr/gcc/10/lib/amd64/libgcc_s.so.1
0x00007fffaf0d96e0 0x00007fffaf188440 Yes (*) /lib/64/libc.so.1
0x00007fffad565c60 0x00007fffad598bae Yes (*) /lib/amd64/ld.so.1
(*): Shared library is missing debugging information.

 

> 
> 
> 
> Regardless, GraphicsMagick has a test in its C++ component (Magick++) because this failure to catch exceptions used to be a common problem.
> 
> Bob
> -- 
> Bob Friesenhahn
> bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
> Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt
> 
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-- 
Carsten Grzemba
Tel.: +49 3677 64740
Mobil: +49 171 9749479
Email: carsten.grzemba at contac-dt.de
contac Datentechnik GmbH
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