From: "H.J. Lu" <hjl.tools@gmail.com>
To: "Carlos O'Donell" <carlos@redhat.com>
Cc: Szabolcs Nagy <szabolcs.nagy@arm.com>,
GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH 0/3] fix ifunc with static pie [BZ #27072]
Date: Thu, 7 Jan 2021 04:55:48 -0800 [thread overview]
Message-ID: <CAMe9rOo4R1oT6Wz=D-_tihSjjqMK1RcmBfkZcDKE+gww+H_5oQ@mail.gmail.com> (raw)
In-Reply-To: <117ed558-3be5-a27a-1ae5-d36b63a55dfe@redhat.com>
On Thu, Jan 7, 2021 at 4:50 AM Carlos O'Donell <carlos@redhat.com> wrote:
>
> On 1/7/21 7:48 AM, H.J. Lu via Libc-alpha wrote:
> > On Thu, Jan 7, 2021 at 3:01 AM Szabolcs Nagy via Libc-alpha
> > <libc-alpha@sourceware.org> wrote:
> >>
> >> on aarch64 this depends on a patch i posted earlier:
> >> https://sourceware.org/pipermail/libc-alpha/2021-January/121366.html
> >>
> >> with that aarch64 static pie tests pass.
> >>
> >> i'm still working on the tunables change and thinging about
> >> libc build time checks for reloc-free early startup code.
> >>
> >> i havent tested x86, it might need changes.
> >
> > Please fix the linker bug:
> >
> > https://sourceware.org/bugzilla/show_bug.cgi?id=13302
> >
> > first before changing glibc.
>
> You will still need potential changes in the loader to handle
> existing binaries, so the binutils fix need not come first,
Linker fix may impact how glibc should be changed.
> but it needs fixing.
>
Whatever we do in glibc, please make it target dependent
and it should be NOP for x86.
--
H.J.
next prev parent reply other threads:[~2021-01-07 12:56 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 11:00 Szabolcs Nagy
2021-01-07 11:01 ` [PATCH 1/3] Make libc symbols hidden in static PIE Szabolcs Nagy
2021-01-07 11:01 ` [PATCH 2/3] [RFC] elf: hack up tunables to avoid RELATIVE relocs Szabolcs Nagy
2021-01-07 13:50 ` Siddhesh Poyarekar
2021-01-07 11:01 ` [PATCH 3/3] csu: Move static pie self relocation later [BZ #27072] Szabolcs Nagy
2021-01-07 12:36 ` H.J. Lu
2021-01-07 12:46 ` Carlos O'Donell
2021-01-07 12:51 ` H.J. Lu
2021-01-07 13:02 ` Szabolcs Nagy
2021-01-07 14:25 ` Szabolcs Nagy
2021-01-07 14:48 ` Siddhesh Poyarekar
2021-01-07 15:25 ` Szabolcs Nagy
2021-01-07 17:48 ` H.J. Lu
2021-01-07 21:03 ` H.J. Lu
2021-01-08 10:08 ` Szabolcs Nagy
2021-01-07 12:48 ` [PATCH 0/3] fix ifunc with static pie " H.J. Lu
2021-01-07 12:50 ` Carlos O'Donell
2021-01-07 12:55 ` H.J. Lu [this message]
2021-01-07 13:03 ` Szabolcs Nagy
2021-01-07 13:15 ` H.J. Lu
2021-01-07 13:28 ` Szabolcs Nagy
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