2010-02-10 07:36:58 SocketCAN/iproute2 error (svn r9438)

Jeppe Ledet-Pedersen (DENMARK)

Message: 85908

I'm trying to compile a kernel to try out the new SocketCAN implementation on my BF537-STAMP. I have downloaded uclinux-dist-trunk-svn.src.tar.bz2 and the compiled svn snapshots of the toolchain. I have followed the SocketCAN guide on the bfin_can wiki page.

However, when I try to compile I get the following error:

In file included from iplink.c:18:

../include/dlfcn.h:7:24: error: dlfcn.h: No such file or directory

iplink.c: In function ‘get_link_kind’:

iplink.c:105: warning: implicit declaration of function ‘dlopen’

iplink.c:105: error: ‘RTLD_LAZY’ undeclared (first use in this function)

iplink.c:105: error: (Each undeclared identifier is reported only once

iplink.c:105: error: for each function it appears in.)

iplink.c:105: warning: assignment makes pointer from integer without a cast

iplink.c:110: warning: assignment makes pointer from integer without a cast

iplink.c:117: warning: implicit declaration of function ‘dlsym’

iplink.c:117: warning: assignment makes pointer from integer without a cast

It seems to be the same issue as this one: blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=5656 but as I read it, it should be patched?

I have attached my .config (bf537-stamp.config)

Can you give me a push in the right direction?

Thank you

/Jeppe

bf537-stamp.config

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2010-02-10 07:48:06 Re: SocketCAN/iproute2 error (svn r9438)

Mike Frysinger (UNITED STATES)

Message: 85909

can support should be inetgrated into trunk already, so you shouldnt need to apply any patches

otherwise, you can use FDPIC instead of FLAT

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2010-02-10 07:57:20 Re: SocketCAN/iproute2 error (svn r9438)

Jeppe Ledet-Pedersen (DENMARK)

Message: 85910

Hi Mike. I didn't apply the patch as I understood that it was already merged into trunk. So I guess I'll try FDPIC. How do I do this and will it have any 'side effects'? Thank you for your quick reply

/Jeppe

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2010-02-10 08:00:30 Re: SocketCAN/iproute2 error (svn r9438)

Jeppe Ledet-Pedersen (DENMARK)

Message: 85911

I guess the 'Binary Format' option in menuconfig was a good place to look...

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2010-02-10 08:26:36 Re: SocketCAN/iproute2 error (svn r9438)

Jeppe Ledet-Pedersen (DENMARK)

Message: 85912

It compiles now, thanks mike. I did get an error because romfs/usr/bin/cansend could not be created, but I just touched the file and everything appeared to work.

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2010-02-10 16:29:31 Re: SocketCAN/iproute2 error (svn r9438)

Mike Frysinger (UNITED STATES)

Message: 85927

i fixed building of iproute2 as FLAT, but i have no idea what error you're talking about with cansend. you'd have to post a log snippet.

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2010-02-11 02:56:10 Re: SocketCAN/iproute2 error (svn r9438)

Jeppe Ledet-Pedersen (DENMARK)

Message: 85941

Good to hear. This is the error it got with cansend:

make[2]: Entering directory `/home/bexus/uclinux-dist-trunk-svn-9438/user/canutils'

romfs-inst.sh can-utils-rel-2.0.0-pre7/cansend /usr/bin/cansend