[Xorp-users] Building Xorp SVN on Linux Debian sparc fails

[Ben Greear]

On 03/07/2010 10:07 AM, Jose Manuel dos Santos Calhariz wrote:
> On Sat, Mar 06, 2010 at 12:14:00AM -0800, Ben Greear wrote:
>> On 03/05/2010 07:29 PM, Jose Manuel dos Santos Calhariz wrote:
>>>
>>> I am trying to compile Xorp SVN on a sparc machine running Debian.
>>> But it fails with:
>>>
>>> g++ -o obj/sparc64-unknown-linux-gnu/libproto/packet.os -c -O1 -g3 -Werror -W -Wall -Wwrite-strings -Wcast-qual -Wpointer-arith -Wcast-align -Woverloaded-virtual -ftemplate-depth-25 -pipe -fPIC -DXRL_PF=120 -D_FORTIFY_SOURCE=0 -DBOOST_DISABLE_THREADS -I/usr/local/include -Iobj/sparc64-unknown-linux-gnu -I. -I. libproto/packet.cccc1plus: warnings being treated as errors
>>> libproto/packet.cc: In static member function 'static ArpHeader&   ArpHeader::assign(uint8_t*)':
>>> libproto/packet.cc:238: error: cast from 'uint8_t*' to 'ArpHeader*' increases required alignment of target type
>>> libproto/packet.cc: In static member function 'static const ArpHeader&   ArpHeader::assign(const std::vector<unsigned char, std::allocator<unsigned char>   >&)':
>>> libproto/packet.cc:248: error: cast from 'const unsigned char*' to 'const ArpHeader*' increases required alignment of target type
>>> scons: *** [obj/sparc64-unknown-linux-gnu/libproto/packet.os] Error 1
>>> scons: building terminated because of errors.
>>
>> Here's a patch against my tree (and will probably apply somewhat clean to official SVN)
>> that might fix your problem.
>
> Thank you.  It applied without problems to the official SVN and
> compiles.  Now the compilation stops on another error.
>
> g++ -o obj/sparc64-unknown-linux-gnu/fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.os -c -O1 -g3 -Werror -W -Wall -Wwrite-strings -Wcast-qual -Wpointer-arith -Wcast-align -Woverloaded-virtual -ftemplate-depth-25 -pipe -fPIC -DXRL_PF=120 -D_FORTIFY_SOURCE=0 -DBOOST_DISABLE_THREADS -I/usr/local/include -Iobj/sparc64-unknown-linux-gnu -I. -I. fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc
> cc1plus: warnings being treated as errors
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc: In static member function 'static int IfConfigGetNetlinkSocket::parse_buffer_netlink_socket(IfConfig&, IfTree&, const std::vector<unsigned char, std::allocator<unsigned char>  >&)':
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc:87: error: cast from 'char*' to 'nlmsghdr*' increases required alignment of target type
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc: In function 'void nlm_newlink_to_fea_cfg(IfTree&, const ifinfomsg*, int)':
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc:269: error: cast from 'char*' to 'rtattr*' increases required alignment of target type
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc: In function 'void nlm_dellink_to_fea_cfg(IfTree&, const ifinfomsg*, int)':
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc:533: error: cast from 'char*' to 'rtattr*' increases required alignment of target type
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc: In function 'void nlm_newdeladdr_to_fea_cfg(IfTree&, const ifaddrmsg*, int, bool)':
> fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.cc:598: error: cast from 'char*' to 'rtattr*' increases required alignment of target type
> scons: *** [obj/sparc64-unknown-linux-gnu/fea/data_plane/ifconfig/ifconfig_parse_netlink_socket.os] Error 1
> scons: building terminated because of errors.

I pushed the previous patch (slightly cleaned up) to my tree.

For the errors above, my code is different from SVN, so the attached patch
is likely of little help.  But, you might try applying it to my git tree
to see if it helps _it_ compile.

For what it's worth, compiles fine on x86-32 Fedora 12.

Compile tested only.

Thanks,
Ben


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com
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