Re: libstdc++ not handling exception for sh4 architecture

Hello!

On 07/25/2015 09:02 AM, Rahul Dhobi wrote:
> I'm using *gcc4.9 sh4 toolchain* from
> http://download.si-linux.co.jp/debian-sh/jessie-sh4/toolchain-amd64/gcc-4.9/

This is not part of Debian, so we can't really support it! In any case,
please make sure you use a current snapshot of either gcc-4.9 or gcc-5
as many bugs in the SH backend were fixed recently.

> , During testing I have found that libstdc++ is not handling exception
> and program receives  *SIGABRT* signal.
> 
> sample program is below.
> (...)

Works as expected here:

root@tirpitz:~> nano test.cpp
root@tirpitz:~> g++ test.cpp -o testcpp
root@tirpitz:~> ./testcpp
divided by zero..
root@tirpitz:~> uname -a
Linux tirpitz 3.16.7-ckt7 #5 PREEMPT Sat Apr 25 15:33:59 CEST 2015 sh4a
GNU/Linux
root@tirpitz:~>

This was tested with gcc-5_5.2.1-15 from Debian unstable:

root@tirpitz:~> gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/sh4-linux-gnu/5/lto-wrapper
Target: sh4-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 5.2.1-15'
--with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,c++,java,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-5 --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-libitm --disable-libsanitizer --disable-libquadmath
--enable-plugin --with-system-zlib --disable-browser-plugin
--enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-sh4/jre
--enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-sh4
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-sh4
--with-arch-directory=sh --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-multiarch --with-cpu=sh4
--with-multilib-list=m4,m4-nofpu --enable-checking=release
--build=sh4-linux-gnu --host=sh4-linux-gnu --target=sh4-linux-gnu
Thread model: posix
gcc version 5.2.1 20150808 (Debian 5.2.1-15)
root@tirpitz:~>

Adrian