From: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
To: libc-alpha@sourceware.org
Cc: Alan Modra <amodra@gmail.com>
Subject: Re: [PATCH v2 2/4] powerpc64: Set up thread register for _dl_relocate_static_pie
Date: Fri, 08 Apr 2022 19:28:35 -0300 [thread overview]
Message-ID: <8735in2orw.fsf@linux.ibm.com> (raw)
In-Reply-To: <20220228064052.3413334-3-amodra@gmail.com>
Alan Modra via Libc-alpha <libc-alpha@sourceware.org> writes:
> libgcc ifunc resolvers that access hwcap via a field in the tcb can't
> be called until the thread pointer is set up. Other ifunc resolvers
> might need access to at_platform. This patch sets up a fake thread
> pointer early to a copy of tcbhead_t. hwcapinfo.c already had local
> variables for hwcap and at_platform, replace them with an entire
> tcbhead_t. It's not that large and this way we easily ensure hwcap
> and at_platform are at the same relative offsets as they are in the
> real thread block.
>
> The patch also conditionally disables part of tst-tlsifunc-static,
> "bar address read from IFUNC resolver is incorrect". We can't get a
> proper address for a thread variable before glibc initialises tls.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
--
Tulio Magno
next prev parent reply other threads:[~2022-04-08 22:28 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-23 12:42 [PowerPC64] Use medium model toc accesses throughout Alan Modra
2022-01-24 3:47 ` [PATCH 2/5] [PowerPC64] Set up thread register for _dl_relocate_static_pie Alan Modra
2022-02-16 23:02 ` Paul E Murphy
2022-02-19 0:49 ` Alan Modra
2022-01-24 3:50 ` [PATCH 3/5] [PowerPC] Relocate stinfo->main Alan Modra
2022-01-24 4:48 ` H.J. Lu
2022-01-24 6:51 ` Alan Modra
2022-01-24 3:52 ` [PATCH 4/5] Constify a variable in dl_vdso_vsym Alan Modra
2022-01-24 4:06 ` [PATCH 5/5] Enable static-pie on powerpc64 Alan Modra
2022-01-27 18:39 ` Florian Weimer
2022-01-28 8:45 ` Alan Modra
2022-01-28 17:48 ` [PowerPC64] Use medium model toc accesses throughout Paul E Murphy
2022-01-29 1:24 ` Alan Modra
2022-02-28 6:40 ` [PATCH v2 0/4] PowerPC64 static-pie Alan Modra
2022-02-28 6:40 ` [PATCH v2 1/4] powerpc64: Use medium model toc accesses throughout Alan Modra
2022-04-08 22:28 ` Tulio Magno Quites Machado Filho
2022-02-28 6:40 ` [PATCH v2 2/4] powerpc64: Set up thread register for _dl_relocate_static_pie Alan Modra
2022-04-08 22:28 ` Tulio Magno Quites Machado Filho [this message]
2022-02-28 6:40 ` [PATCH v2 3/4] powerpc: Relocate stinfo->main Alan Modra
2022-04-08 22:32 ` Tulio Magno Quites Machado Filho
2022-02-28 6:40 ` [PATCH v2 4/4] powerpc64: Enable static-pie Alan Modra
2022-04-08 22:49 ` Tulio Magno Quites Machado Filho
2022-04-14 1:16 ` Alan Modra
2022-04-14 3:42 ` Fangrui Song
2022-04-20 7:21 ` [PATCH v3] " Alan Modra
2022-03-04 12:48 ` [PATCH v2 0/4] PowerPC64 static-pie Alan Modra
2022-04-08 8:06 ` Alan Modra
2022-04-09 0:14 ` Fangrui Song
2022-04-14 0:33 ` Alan Modra
2022-04-14 1:54 ` DT_RELR without libc.so dependency H.J. Lu
2022-04-14 3:43 ` Fangrui Song
2022-04-14 5:18 ` Alan Modra
2022-04-14 17:55 ` H.J. Lu
2022-04-08 22:27 ` [PATCH v2 0/4] PowerPC64 static-pie Tulio Magno Quites Machado Filho
2022-04-11 1:38 ` Alan Modra
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