From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <hjl.tools@gmail.com>
Received: from mail-oi1-x22c.google.com (mail-oi1-x22c.google.com
 [IPv6:2607:f8b0:4864:20::22c])
 by sourceware.org (Postfix) with ESMTPS id 26AFD3939C19;
 Wed, 13 Jan 2021 17:07:23 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 26AFD3939C19
Received: by mail-oi1-x22c.google.com with SMTP id q205so2801055oig.13;
 Wed, 13 Jan 2021 09:07:23 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
 bh=U8UibNJAV1Hc7By2Zxm/lYAxf3pFOgDJHrj1lSm9pm0=;
 b=gpmAUTHXJezrF7brH8Amsvd8xt3BztIqxdzJDXsYZK+N2w99P4WZmeSKao4bSAvvR/
 WUUxkKcupUi5f4ZenZtdOQicQcH1Wx13hp2w4y2jka8zDjXFw57fSuhVH3k8V5H90x9z
 zNzAwCO/a/Jpca3i+iZDiHzPqTKqLNlcvzMDj1P62K/LUld1sV9XFU2leyCAJ+86XxEw
 kx2krJdLWBJWCTLnoAxBcDZPorKF7TgStw3ZUeyY+JoqFV7z2obTuLLKs6pw9PfMq0rJ
 oqHmuFWDlvExqw88ZwETGES1JUkVaFDZE9hHDLT59EcpId74OI+SFC4hD+207CNygm+N
 4xEw==
X-Gm-Message-State: AOAM532AbuYsWwC5qNypta/qyTSC/CNmnZaIli8SiL5v9jVjCqsru03x
 Z0NRIym6eoBOOgl/I14jtPK82pCCLU2V2xzBY5OjeTCMFFU=
X-Google-Smtp-Source: ABdhPJz51yT6GOwEmD2jh20K4bPvdF1YM89F380rS2gZLMfbg9JTNONUWZuiWMEyElMX9IoOy3HooRxEbl5qVWKmWk8=
X-Received: by 2002:aca:f456:: with SMTP id s83mr153348oih.58.1610557642349;
 Wed, 13 Jan 2021 09:07:22 -0800 (PST)
MIME-Version: 1.0
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 13 Jan 2021 09:06:46 -0800
Message-ID: <CAMe9rOq1hJiTaen1bH7SpWCB0hz0T39g5YTiOD-sk9jzwZrt1g@mail.gmail.com>
Subject: RFC: Add GNU_PROPERTY_UINT32_AND_XXX/GNU_PROPERTY_UINT32_OR_XXX
To: GNU gABI gnu-gabi <gnu-gabi@sourceware.org>,
 GCC Development <gcc@gcc.gnu.org>, 
 Binutils <binutils@sourceware.org>, GNU C Library <libc-alpha@sourceware.org>, 
 llvm-dev@lists.llvm.org
Content-Type: text/plain; charset="UTF-8"
X-Spam-Status: No, score=-3030.2 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,
 SPF_HELO_NONE, SPF_PASS,
 TXREP autolearn=unavailable autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: gnu-gabi@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gnu-gabi mailing list <gnu-gabi.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/gnu-gabi>,
 <mailto:gnu-gabi-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/gnu-gabi/>
List-Help: <mailto:gnu-gabi-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/gnu-gabi>,
 <mailto:gnu-gabi-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Jan 2021 17:07:29 -0000

1. GNU_PROPERTY_UINT32_AND_LO..GNU_PROPERTY_UINT32_AND_HI

 #define GNU_PROPERTY_UINT32_AND_LO 0xb0000000
 #define GNU_PROPERTY_UINT32_AND_HI 0xb0007fff

A bit in the output pr_data field is set only if it is set in all
relocatable input pr_data fields.  If all bits in the the output
pr_data field are zero, this property should be removed from output.

If the bit is 1, all input relocatables have the feature.  If the
bit is 0 or the property is missing, the info is unknown.

2. GNU_PROPERTY_UINT32_OR_LO..GNU_PROPERTY_UINT32_OR_HI

 #define GNU_PROPERTY_UINT32_OR_LO 0xb0008000
 #define GNU_PROPERTY_UINT32_OR_HI 0xb000ffff

A bit in the output pr_data field is set if it is set in any
relocatable input pr_data fields. If all bits in the the output
pr_data field are zero, this property should be removed from output.

If the bit is 1, some input relocatables have the feature.  If the
bit is 0 or the property is missing, the info is unknown.

The PDF is at

https://gitlab.com/x86-psABIs/Linux-ABI/-/wikis/uploads/0690db0a3b7e5d8a44e0271a4be54aa7/linux-gABI-and-or-2021-01-13.pdf

-- 
H.J.