libc6 status

[Eric Delaunay <delaunay@lix.polytechnique.fr>]

Hello,

  While I'm trying to create the boot disks for Debian/SPARC, I'm running in
some troubles with libc6 about the use of PIC library.

1/ rootdisk.sh (from boot-floppies-2.0.0) searchs for
   /usr/lib/libc_pic/soinit.so, /usr/lib/libc_pic/sofini.so &
   /usr/lib/libc_pic/interp.so files that are missing from our libc6 package.
   I don't know much about creating the subset libc library used in rootdisk,
   but I guess it follows the same method as of libc6 for Intel.
   Can you check the Debian rules file from libc6 2.0 to create a similar
   libc6-pic package ?

2/ the .rem symbol is defined in libslang (0.99.38) but not in the the libslang
   generated for miniroot by processing the libslang-pic package.

	# objdump --dynamic-syms /lib/libslang.so.0.99.38 | grep '\.rem'
	000077d4 g    DF .text  000002a8  Base        .rem

	# objdump --dynamic-syms /mnt/lib/libslang.so.0.99.38 | grep '\.rem'
	00000000      D  *UND*  00000000              .rem

   We have had previous discussion about including or not the .*{rem,div,mul}
   symbols in the shared libc library.
   This problem raises another point on which current libc policy fails.

3/ the linker (binutils 2.8.1.0.19) seems to be broken.  It fails to generate
   the libc6 library from libc6-pic when multiple versions of the same symbol
   exist:

   ld: /var/tmp/lib.10183: undefined versioned symbol name fclose@@GLIBC_2.1
   ld: failed to set dynamic section sizes: Bad value

   The command used to generate such library is similar to the following one
   (from boot-floppies):
   # scripts/rootdisk/generate_library libc.so.6 "/usr/lib/libc_pic.a \
     /lib/ld-linux.so.2 -e __libc_main" /tmp/libc.so.6 /usr/bin/ls

   fclose is used by ls:
   # objdump --dynamic-syms /bin/ls | grep fclose
   00027ad8      DF *UND*  00000110  GLIBC_2.1   fclose

Before trying to fix the latter problem, I would want to know if a new libc6
upload is planned?

PS: In the meantime of having a libc6 which could be reduced cleanly from
	the pic lib, I included a full version in the ramdisk.  However, I cannot
	create a rescue disk because this ramdisk is too large.  A complete libc6
	takes about 960 KB !

-- 
 Eric Delaunay                 | "La guerre justifie l'existence des militaires.
 delaunay@lix.polytechnique.fr | En les supprimant." Henri Jeanson (1900-1970)


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