On 03/25/2014 10:17 AM, 许久成 wrote:

Hi All,

We run into an issue when use e500mc toolchain  g++ to compile c++ 
code for p2020 platform,  the code as below:

Hmm, p2020 should be e500 core rather than e500mc. Additionally, you 
should use gdb to debug it, and check which instruction is illegal.

Thanks
Wei

main.c

#include <iostream>
using namespace std;

int main(void) {
        cout << "asdfasdfasdfasdf";

        return 0;
}

compile it with command "powerpc-fls-linux-g++ main.c" and the output 
file's name is a.out, download the binary to p2020rdb board, but the 
console prints the error log "Illegal instruction".

It is all right on p2041 platform.

The version of toolchian:

Configured with: 
/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/work-shared/gcc-4.6.2+svnr180516-r29+fsl.6/gcc-4_6-branch/configure 
--build=i686-linux --host=i686-fslsdk-linux --target=powerpc-fsl-linux 
--prefix=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr 
--exec_prefix=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr 
--bindir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/bin/ppce500mc-fsl-linux 
--sbindir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/bin/ppce500mc-fsl-linux 
--libexecdir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/libexec/ppce500mc-fsl-linux 
--datadir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/share 
--sysconfdir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/etc 
--sharedstatedir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/com 
--localstatedir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/var 
--libdir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/lib/ppce500mc-fsl-linux 
--includedir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/include 
--oldincludedir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/include 
--infodir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/share/info 
--mandir=/opt/fsl/1.2/sysroots/i686-fslsdk-linux/usr/share/man 
--disable-silent-rules --disable-dependency-tracking 
--with-libtool-sysroot=/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/sysroots/i686-nativesdk-fslsdk-linux 
--with-gnu-ld --enable-shared --enable-languages=c,c++ 
--enable-threads=posix --disable-multilib --enable-c99 
--enable-long-long --enable-symvers=gnu --enable-libstdcxx-pch 
--program-prefix=powerpc-fsl-linux- --enable-lto --enable-libssp 
--disable-bootstrap --disable-libgomp --disable-libmudflap 
--with-system-zlib --with-linker-hash-style=gnu 
--enable-cheaders=c_global 
--with-local-prefix=/opt/fsl/1.2/sysroots/ppce500mc-fsl-linux/usr 
--with-gxx-include-dir=/opt/fsl/1.2/sysroots/ppce500mc-fsl-linux/usr/include/c++ 
--with-build-time-tools=/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/sysroots/i686-linux/usr/powerpc-fsl-linux/bin 
--with-sysroot=/opt/fsl/1.2/sysroots/ppce500mc-fsl-linux 
--with-build-sysroot=/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/sysroots/p4080ds 
--disable-libunwind-exceptions --disable-libssp --disable-libgomp 
--disable-libmudflap 
--with-mpfr=/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/sysroots/i686-nativesdk-fslsdk-linux 
--with-mpc=/local/workspace/yocto-iso-make/p4080ds/build_p4080ds_release/tmp/sysroots/i686-nativesdk-fslsdk-linux 
--enable-nls --enable-__cxa_atexit --with-long-double-128
Thread model: posix
gcc version 4.6.2 (GCC)

Is e500mc family downward compitible with e500v2? C code can run 
correctly on p2020 with the e500mc toolchain.

Thanks & Best Regards
Jiucheng




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