arm-elf cross compiler on cygwin - again
Fri Jul 6 03:56:00 GMT 2001
> After a brief moment of happiness, the world fell apart again :-))
> In function `operator new(unsigned long)':
> ../../../../gcc-3.0/libstdc++-v3/libsupc++/new_opv.cc:35: undefined
> reference to `LLSDA1'
> Can someone explain what's going on here ??
Yep, the exception handling code in the C++ libraries is stuffed. The
full story is complex, but basically, the dwarf2 exception handling model
was changed fairly late in the release process and the ARM back-end didn't
catch up. As a result, it fell back to using setjmp/longjmp unwinding,
and the tables in this format trip a bug in the compiler when used with
dwarf2 debug format (the default for the arm-elf back-end).
I filed a PR about this earlier this week, but I'm hoping that 3.0.1 will
revert back to having proper dwarf2 based unwinders by default.
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