From patchwork Mon Apr 7 00:25:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Indu Bhagat X-Patchwork-Id: 109937 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 22DEE3851AAF for ; Mon, 7 Apr 2025 00:28:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 22DEE3851AAF Authentication-Results: sourceware.org; dkim=fail reason="signature verification failed" (2048-bit key, unprotected) header.d=oracle.com header.i=@oracle.com header.a=rsa-sha256 header.s=corp-2023-11-20 header.b=WSWE5fDS; dkim=fail reason="signature verification failed" (1024-bit key, unprotected) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.a=rsa-sha256 header.s=selector2-oracle-onmicrosoft-com header.b=bwn1sX2j X-Original-To: binutils@sourceware.org Delivered-To: binutils@sourceware.org Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) by sourceware.org (Postfix) with ESMTPS id 1903B3851A9C for ; Mon, 7 Apr 2025 00:26:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 1903B3851A9C Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=oracle.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 1903B3851A9C Authentication-Results: server2.sourceware.org; arc=pass smtp.remote-ip=205.220.165.32 ARC-Seal: i=2; a=rsa-sha256; d=sourceware.org; s=key; t=1743985587; cv=pass; b=KgFhquMrUKqIZhQNkGPM1vsnf4cgen0WEiZK3h9XazT6uaCMK1SwrRs2IgqvLHnRR4p8YeYmaLFPMObFWjjTgx5zFI4QKWF15Gwb6HrNuZu+NI5uil0xr+OxTCl1VAi6zhGPbtHopDPXCBuoNiKXxN/e6NWBuFBC7TDvHkAjC8M= ARC-Message-Signature: i=2; a=rsa-sha256; d=sourceware.org; s=key; t=1743985587; c=relaxed/simple; bh=qyNh3wKO5D/3yv1wyxxBMkYVe9lXrcF0+wCDFnvWVWY=; h=DKIM-Signature:DKIM-Signature:From:To:Subject:Date:Message-ID: MIME-Version; b=HND2OW87C0gmACuwOMPT8QOipgykAbBGkTGAIh3wqOOVCw6Vcmdjfi8SLzM2o7y6xPemgaHc5w1gbM/16+C1Hxg3hj9OVlmwo9TfB4nl1taI3uD4Ya9KSMjA8EmjH52DOC485JfYtaGsw/suTEKMYgLRnY95KwH2ZlT8vuD7ouY= ARC-Authentication-Results: i=2; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1903B3851A9C Received: from pps.filterd (m0333521.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 536Nawgr025755; Mon, 7 Apr 2025 00:26:15 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s= corp-2023-11-20; bh=Zb0IPEYm95qyDJV7vEyj5vUWRP1QK0MsHnPs9cAiecE=; b= WSWE5fDS+PAXdHzIP1muJIlBEQ4aLEFwpz9tw/CMw413/sp1lw8f7CSl8BXI5Ysh +rvyKQoFxM0UqgoHD5Us0+ar1wccTcyEadqGFVhUnzWhSJC673gSnuoALmOWTIZ2 wBvX/pa17rg7kfgR+9WxwOOLZx1yjSV7v7ZhZ8lGb42GhVCO7Dj0lNucQRl+Em2A nUqKQaH/vAXuk1hvdXq9DKNssStXwAnGOXWS+GY9PgrSN5OtajYfodbQ57G+pYk2 bm7iDDuH8tX0ZuzWitxZnlDVyPjasxDMGaU7RuyTP+SV+CMM5r38lMVgd80Q9HHy sQlj0cYphVNNf/NpkiPfpQ== Received: from iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (iadpaimrmta03.appoci.oracle.com [130.35.103.27]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 45tuebhk0u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 07 Apr 2025 00:26:15 +0000 (GMT) Received: from pps.filterd (iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 536KHAIV013679; Mon, 7 Apr 2025 00:26:13 GMT Received: from nam12-mw2-obe.outbound.protection.outlook.com (mail-mw2nam12lp2041.outbound.protection.outlook.com [104.47.66.41]) by iadpaimrmta03.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTPS id 45ttydbgp8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 07 Apr 2025 00:26:13 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=lFnRp3VTIOOqDbtMnGnrnbwS75FjKzZpqSMJNlNlegqLtu/pww1/Ikq64asWmte0nAb4vi9pSKoIQ8f0MmX1WpAlhYgvMuLDbERzXhIdB+KDLVWufR3GcZRcz42Ybj0wiWv1leaqvHmvd77U+ZSQlj0J5edS7UacwLNGRefUDPFmOGJT7TjfyEboOf47e7K1FboFnQT9+MaKo3KFiiWeJguYkawPi8xKSt2nzSNb1uwESRtjflEuJtTG2RT5wrWI4QDsd0Mm1uztpx5btnZW+ywNrBW5DLv+ijedSaftEmATLw7nxhbYNC+3J+X1XlgeSGPT/QZlk3/b7zMBoTzGWw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Zb0IPEYm95qyDJV7vEyj5vUWRP1QK0MsHnPs9cAiecE=; b=QSkobr+IW1ih8C0v9AOEaaHepuVZrteX/uSUEg2Bf1Cn1Ge4zt6E7/U7VF4kICRMPWnE6ym06jPsgVT0LMbD1f0jQrgyYGeGAkOkptyzsM4BMDpZZkf07lOrme8MzBw9WeAt4Iw0kBV9Ct26at9QSUWGIFjtbBaygw7clemKNsWudXyBfVoqkoPc/et7NWejdgT15cfvRMsuvESOAtubzLJ6+Yc8zjvJ02qEeSw3JwU+VJMMORKwWtuJ2a+4ymILKo58nnis5Av+hTgEh9CRSS4sd235Fdo1GyL+VvLABdvX1ocfpC0oNFDchR2dyLrGqXz85u0w2bxFnFZNyHnM2w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Zb0IPEYm95qyDJV7vEyj5vUWRP1QK0MsHnPs9cAiecE=; b=bwn1sX2jXf52rRY4k9Q+aUEk9n7aivxoQLavXOqkX4qejBINenEd0+1v8176hhQ5ipeU1RalIqVufCdzHpnlGMQJQi/1GfL1aggCuS/D6A2V266NIO3eAKu8yZEOIEoNHp/kkJIarmyUMVZhP6m9Pi28FDpqZXzexhp6W/IC7go= Received: from SA1PR10MB6365.namprd10.prod.outlook.com (2603:10b6:806:255::12) by PH7PR10MB5816.namprd10.prod.outlook.com (2603:10b6:510:127::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8583.46; Mon, 7 Apr 2025 00:26:11 +0000 Received: from SA1PR10MB6365.namprd10.prod.outlook.com ([fe80::81bb:1fc4:37c7:a515]) by SA1PR10MB6365.namprd10.prod.outlook.com ([fe80::81bb:1fc4:37c7:a515%4]) with mapi id 15.20.8606.029; Mon, 7 Apr 2025 00:26:11 +0000 From: Indu Bhagat To: binutils@sourceware.org, jbeulich@suse.com Cc: wnliu@google.com, jpoimboe@kernel.org, jremus@linux.ibm.com, Indu Bhagat Subject: [RFC, SCHEME_B 1/7] ld: sframe: emit function start addr as offset from FDE Date: Sun, 6 Apr 2025 17:25:53 -0700 Message-ID: <20250407002559.6593-2-indu.bhagat@oracle.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250407002559.6593-1-indu.bhagat@oracle.com> References: <20250407002559.6593-1-indu.bhagat@oracle.com> X-ClientProxiedBy: MW4PR03CA0066.namprd03.prod.outlook.com (2603:10b6:303:b6::11) To SA1PR10MB6365.namprd10.prod.outlook.com (2603:10b6:806:255::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA1PR10MB6365:EE_|PH7PR10MB5816:EE_ X-MS-Office365-Filtering-Correlation-Id: 9fe914b5-fdb2-445a-816c-08dd756acc6a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|10070799003|376014|366016; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:SA1PR10MB6365.namprd10.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230040)(1800799024)(10070799003)(376014)(366016); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9fe914b5-fdb2-445a-816c-08dd756acc6a X-MS-Exchange-CrossTenant-AuthSource: SA1PR10MB6365.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Apr 2025 00:26:11.4308 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: djW+4ExM7oFDr/MpJkrVXbTUaFsBNkVWbRh2Wq+RzJVFnWUBOppn5meRMHOnsCEUeSobU8S9oXBYBkXiYXgbrA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR10MB5816 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-06_08,2025-04-03_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 adultscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 mlxscore=0 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2502280000 definitions=main-2504070002 X-Proofpoint-GUID: p0R7Sq5cmwjQEScaLET6drcXUiD37FF_ X-Proofpoint-ORIG-GUID: p0R7Sq5cmwjQEScaLET6drcXUiD37FF_ X-Spam-Status: No, score=-12.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: binutils-bounces~patchwork=sourceware.org@sourceware.org Adopt the new semantics of sfde_func_start_address consistently. For ld, this means even the in-memory contents of the FDE function start address (buffer passed to libsframe sframe_encoder_write () for writing out) are encoded in the new semantics. ChangeLog: * bfd/elf-sframe.c (_bfd_elf_merge_section_sframe): Adopt new semantics of function start address encoding. --- bfd/elf-sframe.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/bfd/elf-sframe.c b/bfd/elf-sframe.c index 97e00734515..e5e4c09b72c 100644 --- a/bfd/elf-sframe.c +++ b/bfd/elf-sframe.c @@ -481,6 +481,13 @@ _bfd_elf_merge_section_sframe (bfd *abfd, address += sframe_read_value (abfd, contents, pltn_r_offset, 4); address += (sec->output_offset + r_offset); + /* SFrame FDE function start address is an offset from the + sfde_func_start_address field to the start PC. The + calculation below is the distance of sfde_func_start_address + field from the start of the output SFrame section. */ + address -= (sframe_encoder_get_hdr_size (sfe_ctx) + + ((cur_fidx + num_enc_fidx) /* FDE index. */ + * sizeof (sframe_func_desc_entry))); /* FIXME For testing only. Cleanup later. */ // address += (sec->output_section->vma);