Re: -zcombreloc-less shared libs from ld

[Alan Modra <amodra at bigpond dot net dot au>]

On Sun, Sep 29, 2002 at 09:07:19AM -0400, Jack Howarth wrote:
>   Tag        Type                         Name/Value
>  0x00000001 (NEEDED)                     Shared library: [libresolv.so.2]
>  0x00000001 (NEEDED)                     Shared library: [libc.so.6]
>  0x0000000e (SONAME)                     Library soname: [libhesiod.so.0]
>  0x00000004 (HASH)                       0x94
>  0x00000005 (STRTAB)                     0x75c
>  0x00000006 (SYMTAB)                     0x2cc
>  0x0000000a (STRSZ)                      712 (bytes)
>  0x0000000b (SYMENT)                     16 (bytes)
>  0x00000003 (PLTGOT)                     0x12fc8
>  0x00000002 (PLTRELSZ)                   444 (bytes)
>  0x00000014 (PLTREL)                     RELA
>  0x00000017 (JMPREL)                     0xb38
>  0x00000007 (RELA)                       0xb38
>  0x00000008 (RELASZ)                     756 (bytes)
>  0x00000009 (RELAENT)                    12 (bytes)
>  0x6ffffffe (VERNEED)                    0xab8
>  0x6fffffff (VERNEEDNUM)                 2
>  0x6ffffff0 (VERSYM)                     0xa24
>  0x00000000 (NULL)                       0x0

This is somewhat perplexing.  We have DT_JMPREL (ie. .rela.plt) and
DT_RELA at the same address.  ppc includes plt relocs in DT_RELASZ,
so we actually have

 .rela.plt at 0xb38, 444 = 0x1bc bytes long.
 .rela.* (other reloc sections) at 0xcf4, 756-444 = 0x138 bytes long.

But elf32ppc.xsc should ensure the other relocs sections come
before .rela.plt.  What is going on here?

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre