libdnet-devel

[libdnet-devel] [ARM] My sample link error.

[jang,suk-woo <jha...@gm...>]

arm cross compiler version  => 2.95.2

libdnet-1.10 cross compile success.

but My sample program link error.

error message =>
//////////////////////////////////////////////////////
dnet_test.o: In function 'main'
dnet_test.o(.text+0x60): undefined reference to 'eth_close'
dnet_test.o(.text+0x60): relocation truncated to fit: R_ARM_PC24 eth_close
collect2: ld returned 1 exit status
make: *** [dnet_test] Error 1
//////////////////////////////////////////////////////


<<Makefile>>
//////////////////////////////////////////////////////
KERNERDIR = /usr/src/s3c2800
CFLAGS = -I$(KERNELDIR)/include -O
CC=arm-linux-gcc

all: dnet_test
    cp -a dnet_test /nfs

dnet_test.o: dnet_test.c
    $(CC) $(CFLAGS) -c dnet_test.c

dnet_test: dnet_test.o /usr/arm-linux/lib/libdnet.a
//////////////////////////////////////////////////////


<<dnet_test.c>>
//////////////////////////////////////////////////////
#include <stdio.h>
#include <dnet.h>

unsigned char arp_sample[1000];
int arp_sample_len;

main()
{
eth_t *h_eth;
//<<ellipsis>>
    h_eth = eth_open("eth0");
    eth_send(h_eth, arp_sample, arp_sample_len);
    eth_close(h_eth);
}

Re: [libdnet-devel] [ARM] My sample link error.

[Dug S. <du...@mo...>]

On Tue, Apr 12, 2005 at 01:03:08AM +0900, jang,suk-woo wrote:

> dnet_test.o: In function 'main'
> dnet_test.o(.text+0x60): undefined reference to 'eth_close'
> dnet_test.o(.text+0x60): relocation truncated to fit: R_ARM_PC24 eth_close
> collect2: ld returned 1 exit status
> make: *** [dnet_test] Error 1
> 
> 
> <<Makefile>>
> KERNERDIR = /usr/src/s3c2800
> CFLAGS = -I$(KERNELDIR)/include -O
> CC=arm-linux-gcc
> 
> all: dnet_test
>    cp -a dnet_test /nfs
> 
> dnet_test.o: dnet_test.c
>    $(CC) $(CFLAGS) -c dnet_test.c
> 
> dnet_test: dnet_test.o /usr/arm-linux/lib/libdnet.a

your Makefile is just wrong. you need to actually link the library in:

> dnet_test.o: dnet_test.c
>    $(CC) $(CFLAGS) -c dnet_test.c -L/usr/arm-linux/lib -ldnet

or

> dnet_test.o: dnet_test.c
>    $(CC) $(CFLAGS) -c dnet_test.c /usr/arm-linux/lib/libdnet.a

or

> dnet_test.o: dnet_test.c
>    $(CC) `dnet-config --cflags` -c dnet_test.c `dnet-config --libs`

if you've installed libdnet correctly.

-d.

---
http://monkey.org/~dugsong/

Re: [libdnet-devel] [ARM] My sample link error.

[Dug S. <du...@mo...>]

On Mon, Apr 11, 2005 at 12:37:34PM -0400, Dug Song wrote:

> > dnet_test.o: dnet_test.c
> >    $(CC) $(CFLAGS) -c dnet_test.c -L/usr/arm-linux/lib -ldnet
> 
> or
> 
> > dnet_test.o: dnet_test.c
> >    $(CC) $(CFLAGS) -c dnet_test.c /usr/arm-linux/lib/libdnet.a
> 
> or
> 
> > dnet_test.o: dnet_test.c
> >    $(CC) `dnet-config --cflags` -c dnet_test.c `dnet-config --libs`
> 
> if you've installed libdnet correctly.

oh hell, i didn't read your Makefile carefully. sorry, those are wrong
too. :-)

you can just do:

> dnet_test: dnet_test.c
>	$(CC) `dnet-config --cflags` -o $@ $< `dnet-config --libs`

-d.

---
http://monkey.org/~dugsong/

Re: [libdnet-devel] [ARM] My sample link error.

[jang,suk-woo <jha...@gm...>]

Thank you!
but error.

[ipqam] make
arm-linux-gcc `dnet-config --cflags` -o dnet_test dnet_test.c 
`dnet-config --libs`
/tmp/ccvGvrtp.o: In function `main':
/tmp/ccvGvrtp.o(.text+0x80): undefined reference to `eth_close'
/tmp/ccvGvrtp.o(.text+0x80): relocation truncated to fit: R_ARM_PC24 
eth_close
collect2: ld returned 1 exit status
make: *** [dnet_test] Error 1

>>dnet_test: dnet_test.c
>>	$(CC) `dnet-config --cflags` -o $@ $< `dnet-config --libs`
>>    
>>


< reference>
  libnet cross-compiling sequence.
$cd libnet-1.10
$CC=arm-linux-gcc AR=arm-linux-ar LD=arm-linux-ld 
RANLIB=arm-linux-ranlib ./configure --prefix=/usr/arm-linux 
--build=i686-linux --host=arm-linux
$make
$make install

Re: [libdnet-devel] [ARM] My sample link error.

[Dug S. <du...@mo...>]

On Tue, Apr 12, 2005 at 02:46:46AM +0900, jang,suk-woo wrote:

> [ipqam] make
> arm-linux-gcc `dnet-config --cflags` -o dnet_test dnet_test.c 
> `dnet-config --libs`
> /tmp/ccvGvrtp.o: In function `main':
> /tmp/ccvGvrtp.o(.text+0x80): undefined reference to `eth_close'
> /tmp/ccvGvrtp.o(.text+0x80): relocation truncated to fit: R_ARM_PC24 
> eth_close
> collect2: ld returned 1 exit status
> make: *** [dnet_test] Error 1

looks like your cross-compilation environment is broken somehow?

can you show me the output of 
'nm /usr/arm-linux/lib/libdnet.a | egrep eth_close' ?

-d.

---
http://monkey.org/~dugsong/

Re: [libdnet-devel] [ARM] My sample link error.

[jang,suk-woo <jha...@gm...>]

$nm /usr/arm-linux/lib/libdnet.a | grep eth_close
0000010c T eth_close

>looks like your cross-compilation environment is broken somehow?
>
>can you show me the output of 
>'nm /usr/arm-linux/lib/libdnet.a | egrep eth_close' ?
>
>-d.
>
>---
>http://monkey.org/~dugsong/
>
>  
>