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Wed, 24 Aug 2022 10:18:17 +0000 From: "Victor L. Do Nascimento" To: Subject: [PATCH v3 0/8] Implement assembly cortex-M PACBTI functionality CC: Date: Wed, 24 Aug 2022 11:18:17 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Content-Disposition: inline X-EOPAttributedMessage: 1 X-MS-Office365-Filtering-Correlation-Id: 99fa9b0b-4549-4307-fbf0-08da85b9fc59 X-MS-TrafficTypeDiagnostic: PAXPR08MB7277:EE_|VE1EUR03FT051:EE_|AS8PR08MB6696:EE_ x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234;CTRY:IE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:nebula.arm.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230016)(4636009)(39860400002)(346002)(136003)(376002)(396003)(46966006)(36840700001)(40470700004)(8936002)(41300700001)(186003)(19627235002)(40460700003)(316002)(478600001)(70206006)(336012)(70586007)(8676002)(40480700001)(2616005)(4326008)(26005)(36860700001)(426003)(47076005)(86362001)(5660300002)(81166007)(83380400001)(356005)(82310400005)(82740400003)(2906002)(6916009)(36756003)(36900700001);DIR:OUT;SFP:1101; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Aug 2022 10:18:27.4452 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 99fa9b0b-4549-4307-fbf0-08da85b9fc59 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: VE1EUR03FT051.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR08MB6696 X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi all, This patch series modifies hand-written assembly files for Arm targets, conditionally enabling branch target identification as well as address return signature and verification based on Armv8.1-M Pointer Authentication [1] using ACLE feature test macros at compile-time [2]. The incorportaion of PACBTI functionality in function prologues/ epilogues is dictated by the arguments passed to the `-mbranch-protection' flag at the time of Newlib compilation. Regression tested on arm-none-eabi with and without MVE extension and for Newlib and Newlib-nano. [1] [2] Regards, Victor Victor Do Nascimento (8): newlib: libc: define M-profile PACBTI-enablement macros newlib: libc: strcmp M-profile PACBTI-enablement newlib: libc: strlen M-profile PACBTI-enablement newlib: libc: memchr M-profile PACBTI-enablement newlib: libc: memcpy M-profile PACBTI-enablement newlib: libc: setjmp/longjmp M-profile PACBTI-enablement newlib: libc: aeabi_memmove M-profile PACBTI-enablement newlib: libc: aeabi_memset M-profile PACBTI-enablement .../libc/machine/arm/aeabi_memmove-thumb2.S | 15 +- newlib/libc/machine/arm/aeabi_memset-thumb2.S | 12 +- newlib/libc/machine/arm/arm_asm.h | 130 ++++++++++++++++++ newlib/libc/machine/arm/memchr.S | 34 ++++- newlib/libc/machine/arm/memcpy-armv7m.S | 35 +++-- newlib/libc/machine/arm/setjmp.S | 33 ++++- newlib/libc/machine/arm/strcmp-arm-tiny.S | 8 +- newlib/libc/machine/arm/strcmp-armv7.S | 42 ++++-- newlib/libc/machine/arm/strcmp-armv7m.S | 24 ++-- newlib/libc/machine/arm/strlen-armv7.S | 16 ++- newlib/libc/machine/arm/strlen-thumb2-Os.S | 14 +- 11 files changed, 301 insertions(+), 62 deletions(-) -- 2.36.1