[Bug libc/28857] FAIL: elf/tst-audit24a

["dave.anglin at bell dot net" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=28857

--- Comment #2 from dave.anglin at bell dot net ---
Is it DL_FIXUP_ADDR_VALUE that's problematic?  Maybe it should be defined to
_dl_lookup_address()?

On 32-bit hppa, a pointer to a function descriptor has the plabel bit set (bit
30).  This must be cleared to
get the actual address of the descriptor ((unsigned int)addr & ~2).  If the
descriptor has been bound,
the first word of the descriptor is the physical address of the function.  If
it hasn't been bound, the first
word of the descriptor points to a trampoline in the PLT.  It will fixup the
descriptor on the first call to
the function.

_dl_lookup_address() in dl-fptr.c resolves the descriptor and returns the
actual function address.

If that's not required, maybe DL_FIXUP_ADDR_VALUE(addr) should be:
#define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) ((unsigned int)addr & ~2))
DL_FIXUP_BINDNOW_RELOC looks questionable as well.

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