Uclibc and blackfin

[Koen Kooi]

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Hi,

For a few weeks now I've been trying to build a blackfin toolchain using uclibc for OE[1]
and continue to fail. I even tried using the forks at blackfin.uclinux.org to no avail. I
finally settled on using gcc 4.2.1.

The problems:

* uclibc svn insist on passing the fdpic option to gcc, which no gcc4 I can locate
(upstream, fork, patches, etc) knowns about. (ffmpeg does the same, but lets not start
about that piece of crack)
* the uclibc fork insists on -mleaf-shared-bla, which requires a patched gcc
* uclibc svn allows you to select 'wordexp' in a uclinux config, which is riddled with fork().

After applying attached patch to fix select.c and figuring out what the right combination
of config options is the final link command fails at:

  AR cr lib/libc.a
  LD lib/libc
bfin-angstrom-uclinux-uclibc-ld: warning: cannot find entry symbol lf2flt; defaulting to
0000000c
lib/libc.a(malloc.o): In function `malloc_from_heap':
libc/stdlib/malloc/malloc.c:(.text+0x54): undefined reference to `__GI_mmap'
make: *** [lib/libc.gdb] Error 1

The uclibc fork fails at:

 STRIP -x -R .note -R .comment lib/libc.a
  AR cr lib/libc.a
  LD lib/libc
bfin-angstrom-uclinux-uclibc-ld: 1: No such file: No such file or directory
make: *** [lib/libc.gdb] Error 1

Does anybody have any pointers where I can find sources, patches or configs to get a
uclibc build to complete? The people I asked all said something like "everything is
&*#$&*#-ing broken, use the ABI binary toolchain". At this point I don't care about how
slow it will be (no fdpic or -mleaf-shared-thingy, etc), I just want something that
*compiles*.

regards,

Koen




[1] See http://www.openembedded.org
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