building eglibc 2.9 with enable-oldest-abi=2.9 for i486-pc-linux-gnu

[Simon Braunschmidt]

Hi

I try to find a solution to a build problem when setting
--enable-oldest-abi=2.9

The build breaks when linking libc.so with:



/opt/foobar/master/bin/i486-pc-linux-gnu-gcc   -shared -static-libgcc
-Wl,-O1  -Wl,-z,defs -Wl,-dynamic-linker=/lib/ld-linux.so.2
-B/tmp/e2/build/eglibc-build/csu/
-Wl,--version-script=/tmp/e2/build/eglibc-build/libc.map
-Wl,-soname=libc.so.6 -Wl,-z,combreloc -Wl,-z,relro
-Wl,--hash-style=both -nostdlib -nostartfiles -e __libc_main
-L/tmp/e2/build/eglibc-build -L/tmp/e2/build/eglibc-build/math
-L/tmp/e2/build/eglibc-build/elf -L/tmp/e2/build/eglibc-build/dlfcn
-L/tmp/e2/build/eglibc-build/nss -L/tmp/e2/build/eglibc-build/nis
-L/tmp/e2/build/eglibc-build/rt -L/tmp/e2/build/eglibc-build/resolv
-L/tmp/e2/build/eglibc-build/crypt -L/tmp/e2/build/eglibc-build/nptl
-Wl,-rpath-link=/tmp/e2/build/eglibc-build:/tmp/e2/build/eglibc-build/math:/tmp/e2/build/eglibc-build/elf:/tmp/e2/build/eglibc-build/dlfcn:/tmp/e2/build/eglibc-build/nss:/tmp/e2/build/eglibc-build/nis:/tmp/e2/build/eglibc-build/rt:/tmp/e2/build/eglibc-build/resolv:/tmp/e2/build/eglibc-build/crypt:/tmp/e2/build/eglibc-build/nptl 

-o /tmp/e2/build/eglibc-build/libc.so -T
/tmp/e2/build/eglibc-build/shlib.lds
/tmp/e2/build/eglibc-build/csu/abi-note.o
/tmp/e2/build/eglibc-build/elf/soinit.os
/tmp/e2/build/eglibc-build/libc_pic.os
/tmp/e2/build/eglibc-build/elf/sofini.os
/tmp/e2/build/eglibc-build/elf/interp.os
/tmp/e2/build/eglibc-build/elf/ld.so -lgcc
/opt/foobar/master/lib/gcc/i486-pc-linux-gnu/4.3.2/../../../../i486-pc-linux-gnu/bin/ld: 

/tmp/e2/build/eglibc-build/libc.so: version node not found for symbol
getrlimit@GLIBC_2.0
/opt/foobar/master/lib/gcc/i486-pc-linux-gnu/4.3.2/../../../../i486-pc-linux-gnu/bin/ld: 

failed to set dynamic section sizes: Bad value



I found several other references and reports that i think are also
related to this problem, cited below.

I have attached my build-configuration, the error message and the
libc.map from the build.

Any help would be greatly appreciated

Best Regards
Simon Braunschmidt
Simon.Braunschmidt@emlix.com


FURTHER REFERENCES
      -1- look for getrlimit@2.0 in the glibc source,
      -2- http://sourceware.org/bugzilla/show_bug.cgi?id=6652
      -3- post on glibc-alpha ML, felipe contreras, 06/13/2006 06:12 PM
      Hi everybody,

      I noticed the enable-oldest-abi=2.3 option in the configure script
      doesn't work for i386 and arm, and I was told it didn't work either
      for powerpc. I know enable-oldest-abi=2.4 doesn't work either.

      I did some research and I found that the problem is that a lot of
      syscalls.list files have glibc versions hard coded.

      For example:
      vm86old            EXTRA   vm86old         i:p     __vm86old
      vm86@GLIBC_2.0

      After I removed the functions with strong names that had version
      hard
      coded I could compile fine for arm.

      The error I got for i386 was:
      /tools/bin/ld: /home/felipec/src/glibc-build/libc.so: undefined
      versioned symbol name vm86@GLIBC_2.0

      For arm I got a similar error but with getrlimit@GLIBC_2.0

      Is that the expected behavior?

      PS. I'm not on the list, so can you CC me?

      --
      Felipe Contreras

      -4- patches on glibc-alpha by H. J. Lu regarding
      PATCH: fix the oldest ABI
      --enable-oldest-abi is badly broken
      PATCH: Fix --enable-oldest-abi

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