[Buildroot] [autobuild.buildroot.net] Your build results for 2016-08-23
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Fri Aug 26 09:44:16 UTC 2016
Hello,
[Adding Waldemar in Cc, there's a uClibc bug below.]
On Fri, 26 Aug 2016 14:50:29 +0530, Rahul Bedarkar wrote:
> On Wednesday 24 August 2016 10:55 PM, Thomas Petazzoni wrote:
> > Hello,
> >
> > This is the list of Buildroot build failures that occured on
> > 2016-08-23, and for which you are a registered architecture developer
> > or package developer. Please help us improving the quality of
> > Buildroot by investigating those build failures and sending patches to
> > fix them. Thanks!
> >
> > Build failures related to your packages:
> >
> > bfin | glog-v0.3.4 | http://autobuild.buildroot.net/results/914cc267eba357cc0c425f07e57c6ae35b099b7e
> >
>
> We have disabled glog on blackfin external toolchain uclinux sometime
> back [1]. But we are seeing same issue with buildroot based toolchain now.
>
> As elf-fdpic.h is only provided by uClibc and we support only uClibc for
> blackfin, should we disable glog on blackfin ?
No: we should instead fix the bug in uClibc.
Indeed, the following test program:
#include <link.h>
int main(void) { return 0; }
builds fine with the C compiler:
$ ./output/host/usr/bin/bfin-linux-gcc -o toto toto.c
$
but fails with the C++ compiler:
$ ./output/host/usr/bin/bfin-linux-g++ -o toto toto.c
In file included from /home/thomas/projets/buildroot/output/host/usr/bfin-buildroot-linux-uclibc/sysroot/usr/include/link.h:78:0,
from toto.c:1:
/home/thomas/projets/buildroot/output/host/usr/bfin-buildroot-linux-uclibc/sysroot/usr/include/bits/elf-fdpic.h: In function ‘void* __reloc_pointer(void*, const elf32_fdpic_loadmap*)’:
/home/thomas/projets/buildroot/output/host/usr/bfin-buildroot-linux-uclibc/sysroot/usr/include/bits/elf-fdpic.h:94:54: error: invalid use of ‘void’
unsigned long offset = p - (void*)map->segs[c].p_vaddr;
^~~~~~~
$
Seems like a bug in the uClibc headers. So I'd prefer that we fix
uClibc rather than disabling glog on Blackfin.
Thanks,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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