On Wed, Apr 6, 2016 at 8:11 AM, Christophe Lyon
<christophe.l...@linaro.org> wrote:
> On 6 April 2016 at 16:53, fengwei.yin <fengwei....@linaro.org> wrote:
>> With arm gcc 5.3, the C++ apps crash in one class constructor call. And gdb
>> shows some vtbl items of the class are not relocated.
>>
>> With arm gcc 4.9, if set breakpoint in that constructor, we could see the
>> vtbl
>> items of the class are relocated.
gcc 5.x implements C++ 2011 by default. gcc 4.9.x implements C++ 2003
by default. There were some ABI changes required to implement C++
2011. If the android loader has knowledge of the gcc C++ ABI, maybe
it needs to be updated to understand the new C++ 2011 ABI. You could
try forcing the old ABI to see if that solves the problem.
https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html
And/or try using the older language standard with -std=c++03 or
-std=gnu++03 to see if maybe that helps.
Jim
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