Re: Libpcap 1.3.0 not building on OpenBSD 5.2 sparc64

[Guy Harris <guy () alum mit edu>]

On Dec 10, 2012, at 9:50 AM, Kaya Saman <kayasaman () gmail com> wrote:

> I'm trying to build libpcap 1.3.0 on my Sun Fire V210 running OpenBSD 5.2 however, I keep getting errors??
>
> The configuration script doesn't come up with anything claiming to be an error

That's because there isn't anything on the system that would inherently prevent it from building.

> however, if I run 'make' afterwards I get this:
>
> # make
> VER=`cat ./VERSION`;  MAJOR_VER=`sed 's/\([0-9][0-9]*\)\..*/\1/' ./VERSION`;  gcc -shared 
> -Wl,-soname,libpcap.so.$MAJOR_VER   -o libpcap.so.$VER pcap-bpf.o fad-getad.o pcap.o inet.o gencode.o optimize.o 
> nametoaddr.o etherent.o savefile.o sf-pcap.o sf-pcap-ng.o pcap-common.o bpf_image.o bpf_dump.o  scanner.o grammar.o 
> bpf_filter.o version.o
> scanner.o(.text+0x3b8): In function `pcap__load_buffer_state':
> /home/libpcap-1.3.0/scanner.c:4207: relocation truncated to fit: R_SPARC_GOT13 yy_n_chars

That's probably because it needs to be compiled with -fPIC rather than -fpic - offsets in SPARC instructions are, I 
think, shorter than in at least some other instruction sets, so if the global offset table is too large (which it 
apparently is, perhaps due to the Flex-generated scanner, given that the complaints from the linker are about it), the 
compiler might need to generate instructions that synthesize larger offsets than will fit in the 13-bit offset field.

> Would anyone be able to give me a hand to build it into my system?

Edit the Makefile and replace all occurrences of "-fpic" with "-fPIC", do "make clean", and then try doing "make" 
again.  I'll fix the configure script by adding OpenBSD to the list of platforms where 64-bit SPARC requires -fPIC.
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