[0/2] aarch64: add STO_AARCH64_VARIANT_PCS support

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Headers	show Return-Path: <libc-alpha-return-102206-incoming=patchwork.ozlabs.org@sourceware.org> DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id :content-type:content-id:content-transfer-encoding:mime-version; q=dns; s=default; b=JLapQuvVFMpYxufXyuZ4gbs9j2GPQxCu5wiG4CqO+Sb nShQYke5aKWllciPHDwve3l5Hv2iqZ2s9f2FmNhiGoXARxsTqgc0v2r61TkBAVNi Z27FponXPB7WevxxPpxcdkYSV9fyMxk04ApMeeS5nITNBC8PLaQTx732Z9u8Uhdg = Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk Sender: libc-alpha-owner@sourceware.org From: Szabolcs Nagy <Szabolcs.Nagy@arm.com> To: GNU C Library <libc-alpha@sourceware.org> CC: nd <nd@arm.com> Subject: [PATCH glibc 0/2] aarch64: add STO_AARCH64_VARIANT_PCS support Date: Thu, 23 May 2019 11:17:36 +0000 Message-ID: <3c35b5f5-b13b-5e75-f0ed-2cbf788d83cf@arm.com> user-agent: Mozilla/5.0 (X11; Linux aarch64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) Content-Type: text/plain; charset="utf-8" Content-ID: <7D9B52C11C3EC746B757C1C9CF13AC9A@eurprd08.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
Series	aarch64: add STO_AARCH64_VARIANT_PCS support \| expand [0/2] aarch64: add STO_AARCH64_VARIANT_PCS support [1/2] aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS [2/2] aarch64: handle STO_AARCH64_VARIANT_PCS

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From: Szabolcs Nagy <Szabolcs.Nagy@arm.com>
To: GNU C Library <libc-alpha@sourceware.org>
CC: nd <nd@arm.com>
Subject: [PATCH glibc 0/2] aarch64: add STO_AARCH64_VARIANT_PCS support
Date: Thu, 23 May 2019 11:17:36 +0000
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aarch64: add STO_AARCH64_VARIANT_PCS support | expand

Message

Szabolcs Nagy May 23, 2019, 11:17 a.m. UTC

Adds support for a new aarch64 specific st_other flag that
is used for marking function symbols that follow different
register usage convention from the base PCS. It is required
for lazy binding support for vector PCS calls.

The ELF ABI draft and detailed description is at
https://sourceware.org/ml/libc-alpha/2019-05/msg00501.html

Szabolcs Nagy (2):
  aarch64: add STO_AARCH64_VARIANT_PCS and DT_AARCH64_VARIANT_PCS
  aarch64: handle STO_AARCH64_VARIANT_PCS

 elf/elf.h                      |  7 ++++++
 sysdeps/aarch64/dl-dtprocnum.h | 21 +++++++++++++++++
 sysdeps/aarch64/dl-machine.h   | 42 ++++++++++++++++++++++++++++++----
 sysdeps/aarch64/linkmap.h      |  1 +
 4 files changed, 67 insertions(+), 4 deletions(-)
 create mode 100644 sysdeps/aarch64/dl-dtprocnum.h