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CTRY:GB; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:outbound-uk1.az.dlp.m.darktrace.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230040)(82310400026)(35042699022)(36860700013)(1800799024)(14060799003)(376014); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jul 2025 07:13:47.0558 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ba1b0fc9-9857-44b0-047f-08ddc2a5f9ba X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[4.158.2.129]; Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DU6PEPF0000A7E0.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU5PR08MB10467 X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org On 7/13/25 20:05, Luis Machado wrote: > Hi, > > On 7/13/25 15:01, Schimpe, Christina wrote: >> Hi Luis, >> >> Thanks for sharing that info. >> I tried to reproduces with the same ubuntu & kernel versions and a very similar system but am not successful so far... >> Just to be sure, I assume you test with gcc compiler (which version?) and compiled GDB with latest upstream master + my cet shadow stack patches? > > Interesting. GCC says: gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0 > > I applied the CET shadow stack patches from v5. And yes, gdb is the latest tip-of-tree. >> >> Do you see this for target_board=native-gdbserver and target_board=unix? > > No. native-gdbserver, native-extended-gdbserver and unix work just fine. > > Let me have another look to see what might be going on. Heh, found it. I had a freshly-installed system and was missing libexpat-dev, so no XML was being generated. With libexpat-dev installed, everything looks fine. So this is good. Sorry for the noise. I spotted two things while building gdb with the patch series applied There is a uninitialized usage warning gdb/nat/x86-linux.c:151:12: warning: ‘ecx’ may be used uninitialized [-Wmaybe-uninitialized] 151 | if ((ecx & bit_SHSTK) == 0) | ~~~~~^~~~~~~~~~~~ ../../../repos/binutils-gdb/gdb/nat/x86-linux.c:147:26: note: ‘ecx’ was declared here 147 | unsigned int eax, ebx, ecx, edx; Also, git am seems to complain about some whitespace issues: Applying: gdb, gdbserver: Add support of Intel shadow stack pointer register. .git/rebase-apply/patch:596: indent with spaces. # Having unavailable registers leads to a fall back to the standard .git/rebase-apply/patch:597: indent with spaces. # unwinders. Don't add unavailable registers to avoid this. .git/rebase-apply/patch:598: indent with spaces. if (str (val) == ""): .git/rebase-apply/patch:599: indent with spaces. continue .git/rebase-apply/patch:587: new blank line at EOF. + warning: 5 lines add whitespace errors. Could you please address those locally? Otherwise... Approved-By: Luis Machado I'd give this another week in case someone has any more comments, and then push it. Thanks for the series.