From: Mike Frysinger <vapier@gentoo.org>
To: parisc-linux@lists.parisc-linux.org
Cc: Carlos O'Donell <carlos@systemhalted.org>
Subject: [parisc-linux] Getting PIE to work (was How to reclaim .rela.dyn entries for symbols that become hidden?)
Date: Thu, 7 Jul 2005 17:59:12 -0400 [thread overview]
Message-ID: <200507071759.12521.vapier@gentoo.org> (raw)
In-Reply-To: <20050630165918.GG5269@systemhalted.org>
On Thursday 30 June 2005 12:59 pm, Carlos O'Donell wrote:
> An example executable might look like this:
>
> Relocation section '.rela.dyn' at offset 0x2fc contains 11 entries:
> Offset Info Type Sym.Value Sym. Name + Addend
> 00000000 00000000 R_PARISC_NONE 00000000
> 00000000 00000000 R_PARISC_NONE 00000000
> 00000000 00000000 R_PARISC_NONE 00000000
> 00000000 00000000 R_PARISC_NONE 00000000
> 00010420 00000542 R_PARISC_PLABEL21 0001054c main + 0
> 00010424 00000546 R_PARISC_PLABEL14 0001054c main + 0
> 00010430 00000442 R_PARISC_PLABEL21 000106e0 __libc_csu_init + 0
> 00010434 00000446 R_PARISC_PLABEL14 000106e0 __libc_csu_init + 0
> 00010438 00000242 R_PARISC_PLABEL21 00010770 __libc_csu_fini + 0
> 0001043c 00000246 R_PARISC_PLABEL14 00010770 __libc_csu_fini + 0
> 000108b4 00000841 R_PARISC_PLABEL32 00000000 _Jv_RegisterClasses + 0
>
> Lets not worry about wether this is optimal (It's not and the fix is to
> change glibc/sysdeps/hppa/start.S to use plabel words so these become 1
> reloc each).
does that mean you're looking into fixing PIE on parisc ? we noticed in
Gentoo that nscd fails to run since glibc forces it to either be built as a
PIE or not at all:
root@mindcircus 0 ~ # nscd
nscd: error while loading shared libraries: unexpected reloc type 0x42
building anything as PIE fails due to this reloc ... looks like binutils
generates relocs of type R_PARISC_PLABEL14 and R_PARISC_PLABEL21 but glibc
only knows how to handle R_PARISC_PLABEL32 ...
-mike
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next parent reply other threads:[~2005-07-07 21:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050630165918.GG5269@systemhalted.org>
2005-07-07 21:59 ` Mike Frysinger [this message]
2005-07-08 1:56 ` [parisc-linux] Getting PIE to work (was How to reclaim .rela.dyn entries for symbols that become hidden?) Randolph Chung
2005-07-08 2:00 ` Mike Frysinger
2005-07-08 2:06 ` Randolph Chung
2005-07-08 3:23 ` Carlos O'Donell
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