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Fri, 3 Nov 2023 15:36:02 +0000 From: Szabolcs Nagy To: Subject: [PATCH v2 0/7] aarch64 GCS preliminary patches Date: Fri, 3 Nov 2023 15:36:02 +0000 Message-ID: X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: AM4PEPF00025F96:EE_|AS4PR08MB7832:EE_|DU6PEPF0000B61F:EE_|DB4PR08MB10343:EE_ X-MS-Office365-Filtering-Correlation-Id: b87cc500-1a24-4959-b5b8-08dbdc829ba8 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: qtrvBqjYAafqdNvY/D1YqKmC07LD4O3AtF2z9y61JRdSyYvGg2S3syfvOIj91T9zbHhn/H/pleNddTBC1584/YKP7hGUrrkogXd5ErgLck8sP1fX11Edyiw8GtuONW0srLXA3M0HnEjjXfprdQkCfDjkBBhHvMVTjw4Ggh8Z4206sblzMf0+U//04HEj1g+XFO5i0/T1dQk9yc70cl50mgp2G+NFSRoyIK8bvtsf3YxSiby9f1DlqdzclJJav41TPp2Axx8seMDVxt7C9SmXwAICHzTT9XCB2ZTRdfdv+xCFrmQho3Md/rC6vou1fiL1SO/9gL97P/dgcuFhpEbGN4BY2aTcqUueoU6U9frIj0siT48PGWb6uuu7C1bGDxTseMqHnaa0mt9fGOwmOb1um5Hotn22ua9u/oomdpFRRqGEhxTPvrvK6+U6AwYRF4ghiZ4Cq4mqO6pfO8DAfpJsz7huSl0XWfRhkh0GTWf7IS8dCOt0RwynFTWcP0pr2SCOcWmXKRGiAhI3jvbQxJK7fIpTuFVv96MKDN/54Dnl8HeERmxrbdMc9shV0cyvYXZwtNBCcHcs5CW3kuz1gJ/d8+dk7Ztdwgn7edl9LfB95lufMvlIe8Q9ev+WP3jHxDvTW59gvf9YNv79PI9Pw0FJvzrW/Cc4AZlMACZG2AMSyqaWzsX1k620QbiGspMwTRD7BY/svverOPX+1NwhM2JY2BE4wCMzW28IvHPpE2hjMJo/aYxj52J7lwuvlR8xKTkXkcDogkOh0LOX2XnHhCsIUg== 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:(13230031)(4636009)(396003)(136003)(376002)(346002)(39860400002)(230922051799003)(1800799009)(451199024)(64100799003)(186009)(82310400011)(46966006)(36840700001)(40470700004)(86362001)(8676002)(8936002)(82740400003)(356005)(47076005)(44832011)(41300700001)(81166007)(36756003)(36860700001)(70586007)(6916009)(70206006)(316002)(5660300002)(336012)(83380400001)(2906002)(966005)(478600001)(426003)(7696005)(40480700001)(40460700003)(2616005)(26005)(36900700001);DIR:OUT;SFP:1101; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Nov 2023 15:36:11.8441 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b87cc500-1a24-4959-b5b8-08dbdc829ba8 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: DU6PEPF0000B61F.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB4PR08MB10343 X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,KAM_SHORT,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: I'm working on Guarded Control Stack support for aarch64 and have a set of patches that are needed for GCS but seem useful without it so makes sense to review them separately from the rest of the GCS work. previous version: https://gcc.gnu.org/pipermail/gcc-patches/2023-August/628123.html Szabolcs Nagy (7): aarch64: Use br instead of ret for eh_return aarch64: Do not force a stack frame for EH returns aarch64: Add eh_return compile tests aarch64: Disable branch-protection for pcs tests aarch64,arm: Remove accepted_branch_protection_string aarch64,arm: Fix branch-protection= parsing aarch64,arm: Move branch-protection data to targets gcc/config/aarch64/aarch64-opts.h | 6 +- gcc/config/aarch64/aarch64-protos.h | 1 - gcc/config/aarch64/aarch64.cc | 193 +++++++-------- gcc/config/aarch64/aarch64.h | 9 +- gcc/config/arm/aarch-common-protos.h | 5 +- gcc/config/arm/aarch-common.cc | 229 +++++------------- gcc/config/arm/aarch-common.h | 25 +- gcc/config/arm/arm-c.cc | 2 - gcc/config/arm/arm.cc | 57 ++++- gcc/config/arm/arm.opt | 3 - gcc/df-scan.cc | 10 + gcc/doc/tm.texi | 12 + gcc/doc/tm.texi.in | 12 + gcc/except.cc | 20 ++ .../gcc.target/aarch64/aapcs64/func-ret-1.c | 1 + .../gcc.target/aarch64/aapcs64/func-ret-2.c | 1 + .../gcc.target/aarch64/aapcs64/func-ret-3.c | 1 + .../gcc.target/aarch64/aapcs64/func-ret-4.c | 1 + .../aarch64/aapcs64/func-ret-64x1_1.c | 1 + .../aarch64/branch-protection-attr.c | 6 +- .../aarch64/branch-protection-option.c | 2 +- .../gcc.target/aarch64/eh_return-2.c | 9 + .../gcc.target/aarch64/eh_return-3.c | 30 +++ .../aarch64/return_address_sign_1.c | 13 +- .../aarch64/return_address_sign_2.c | 17 +- .../aarch64/return_address_sign_b_1.c | 11 - .../aarch64/return_address_sign_b_2.c | 17 +- 27 files changed, 356 insertions(+), 338 deletions(-) create mode 100644 gcc/testsuite/gcc.target/aarch64/eh_return-2.c create mode 100644 gcc/testsuite/gcc.target/aarch64/eh_return-3.c -- 2.25.1