SIGSEGV in dynamic_cast (NDK R5C)

[Riadh Elloumi]

Hi all,

I used the android NDK R5C with gnu libstdc++, rtti and exceptions
support to compile an application that uses rtti. I used the platform
Android-9. The software compiled is Gnu radio (gnuradio.org). I have
SIGSEGV in dynamic_cast.

The exact gdb output is:

0x0036ab4a in __cxxabiv1::__dynamic_cast (src_ptr=0x3e0b80,
src_type=<value optimized out>, dst_type=0x3c9af0, src2dst=<value
optimized out>) at /tmp/ndk-digit/src/build/../gcc/gcc-4.4.3/libstdc
++-v3/libsupc++/dyncast.cc:47
47 /tmp/ndk-digit/src/build/../gcc/gcc-4.4.3/libstdc++-v3/libsupc
++/dyncast.cc: No such file or directory.
in /tmp/ndk-digit/src/build/../gcc/gcc-4.4.3/libstdc
++-v3/libsupc
++/dyncast.cc

This SIGSEGV happens hen casting big classes. I tried with small
classes
and the dynamic_cast is successful.

Is rtti fully supported by Android? Do you have experimented it in big
applications? Do you have some hints to overcome this problem?

Best regards,

Riadh.

[David Turner]

How are you generating your code? How many libraries?

RTTI is supported when you use the static GNU libstdc++ that comes with the NDK (either through ndk-build + APP_STL, or through the standalone toolchain).

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[Riadh Elloumi]

Hi,

I used GNU libstdc++. Actually the bug is mine. I wrongly configured
the gnu radio blocks.

Best reagards

On Jul 12, 3:28 pm, David Turner <di...@android.com> wrote:
> How are you generating your code? How many libraries?
>
> RTTI is supported when you use the static GNU libstdc++ that comes with the
> NDK (either through ndk-build + APP_STL, or through the standalone
> toolchain).
>