$NetBSD: README,v 1.9 2002/07/10 15:12:34 fredette Exp $
BUGS/PROBLEMS:
* rtld.c around line 184:
#iffdef __alpha__
/* XXX XXX XXX */
_rtld_objself.pltgot = NULL;
#endif
It's a workaround for a linker bug, and will go away when the linker is
fixed.
* The method used to relocate ld.so is shoddy and fragile. Currently it's
something like:
alpha, hppa, powerpc:
(1) assembly code relocates RELATIVE relocations in the GOT
(on some ports, all relative relocations; this will probably
have to be #ifdef'd in reloc.c), assuming that everything
in the GOT is a RELATIVE relocation. On the hppa, this
is actually done in C code.
(2) alpha, hppa only: C code relocates the rest of the loader,
excluding those RELATIVE relocations already done (via an ...
iffy heuristic).
arm, i386, m68k, sparc:
(1) C code relocates the loader in _rtld_init() carefully so that
it does not touch any globals.
mips:
(1) loads ld.elf_so at 0, so no relocating is necessary.
Something better (like that the glibc ELF ld.so does) should be done
eventually, where a single set of C code is compiled twice, once for
normal use, and once to be used to relocate the shared linker. No
relocations should be processed in assembly language.
* On the Alpha, this code Really needs to be checked to be sure that
it doesn't make calls that could use FP, while doing lazy binding.
TO DO:
* Support for coexistance of 32-bit and 64-bit ELF on platforms that can
do that.
* Support for relocating ld.elf_so on mips
