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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: dCbxd3qph+pGy4SSkG8Yrt+wIWTD357K1wSF8sMeCJAEK67Y1ZFfTMyTAon/Pv2XPmsYTpEOoMj+DYl2tBUv0fyB03vvWZdZZ49kNDHF2DFnWPmhI97tHJEhC1Y9FZuJAJrvDBGuA/uvfq7xXINtvubK6OyaaRBPCXuKrkUY2rX4hT1kvh27cUHIE1Zwq9h+FXMZckzVvY5WufmAOvMYshoN8ZTzOGs8aMOqRuu19Ggy5Mu7R6JAV29w7z6/jitnVEfS+0cePrzviTV5KSApEcBMC4pkz5E8wSRbOHJMSEtRSgbTA2hu95I1ELaalt1/9mJTtyfgApwIZWkth011DPmPu1TLkRTbAfFX2E9+6poGLRe9vwm1CVokzMBjeHvTVpTUO013rPDdEZSfyFhzDYxam58I3AI2IsbKFwf/4BZIQOurVq65YjO0LRDu/X/H X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Aug 2026 14:07:18.3672 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f0375226-1560-4490-a421-08df01e90220 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: AMS0EPF00000195.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB5492 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 20/08/2026 15:29, Simon Marchi wrote: > On 7/27/26 1:28 PM, Matthieu Longo wrote: >> Add linux_get_hwcap3 and linux_get_hwcap4 helpers to GDB and gdbserver, >> mirroring the existing linux_get_hwcap and linux_get_hwcap2 interfaces. >> >> The new helpers retrieve the AT_HWCAP3 and AT_HWCAP4 auxiliary vector >> entry either from explicitly supplied auxv data or from the current >> inferior. >> >> This prepares for future features that depend on HWCAP3 and HWCAP4 >> capability bits. >> >> Reviewed-by: Thiago Jung Bauermann > > LGTM > > Approved-By: Simon Marchi > Thanks ! > But one question that picked my curiosity: > >> diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc >> index f1be62225e2..c4daba0bf40 100644 >> --- a/gdbserver/linux-low.cc >> +++ b/gdbserver/linux-low.cc >> @@ -70,6 +70,14 @@ >> #define AT_HWCAP2 26 >> #endif >> >> +#ifndef AT_HWCAP3 >> +#define AT_HWCAP3 29 >> +#endif >> + >> +#ifndef AT_HWCAP4 >> +#define AT_HWCAP4 30 >> +#endif > > How come we need to provide these values in gdbserver, but not in the > equivalent native part of gdb? > > Simon Those values had already been added in elf/common.h by this patch: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=0c90306549b02dd2b07fe3f2639ab3ac75a29558 Matthieu