JFFS2 on RTEMS4.11 and GR712RC Eval Kit, zlib issue

[Sebastian Huber]

----- Sebastian Huber <sebastian.huber at embedded-brains.de> schrieb:
> 
> 
> On 21/05/15 00:45, Chris Johns wrote:
> >> make[1]: Leaving directory `/rtems4.11_test/src/app'
> >> >sparc-rtems4.11-gcc --pipe
> >> >-B/rtems4.11_test/build/toolchain/sparc-rtems4.11/leon3/lib/ -specs
> >> >bsp_specs -qrtems   -Lapp -lapp -o build/cassis.elf app/init.o -Lapp -lapp
> >> >/rtems4.11_test/build/toolchain/sparc-rtems4.11/leon3/lib/librtemscpu.a(libjffs2_a-compr_zlib.o):
> >> >In function `rtems_jffs2_compressor_zlib_compress':
> >> >/rtems4.11_test/rtems-source-builder/rtems/build/sparc-rtems4.11-kernel-4.11-1/sparc-rtems4.11-kernel-4.11-1-4.11/build/sparc-rtems4.11/c/leon3/cpukit/libfs/../../../../../../rtems-4.11/c/src/../../cpukit/libfs/src/jffs2/src/compr_zlib.c:61:
> >> >undefined reference to `z_deflateInit_'
> >> >/rtems4.11_test/rtems-source-builder/rtems/build/sparc-rtems4.11-kernel-4.11-1/sparc-rtems4.11-kernel-4.11-1-4.11/build/sparc-rtems4.11/c/leon3/cpukit/libfs/../../../../../../rtems-4.11/c/src/../../cpukit/libfs/src/jffs2/src/compr_zlib.c:78:
> >> >undefined reference to `z_deflate'
> >> >/rtems4.11_test/rtems-source-builder/rtems/build/sparc-rtems4.11-kernel-4.11-1/sparc-rtems4.11-kernel-4.11-1-4.11/build/sparc-rtems4.11/c/leon3/cpukit/libfs/../../../../../../rtems-4.11/c/src/../../cpukit/libfs/src/jffs2/src/compr_zlib.c:91:
> >> >undefined reference to `z_deflate'
> >> >
> >> >.
> >> >
> >> >.
> >> >
> >> >.
> >> >
> >> >undefined reference to `z_inflateEnd'
> >> >collect2: error: ld returned 1 exit status
> >> >make: *** [build/cassis.elf] Error 1
> >> >
> >> >
> >> >
> >> >
> >> >zlib seems to be there:
> >> >
> > Have you added '-lz' to your list of libraries to link against ?
> 
> The -lz is missing, but this alone will not work, see also:
> 
> https://lists.rtems.org/pipermail/devel/2014-September/008191.html
> 
> Its not the first time a user is hit by this problem.
> 
> Use "--start-group -lrtemsbsp -lrtemscpu -lz -lc -lgcc --end-group" as a 
> workaround until the RTEMS community is able to fix the problem.

An alternative to the GCC patch would be a separate libjffs2.a so that you can use -ljffs2 -lz.

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.