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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?3jbY4KD9DhbuNulRQKX5aBsXVq4/HjG/ZX5P/LmeTqbjh2xh6kmBxlt/tZkS?= =?us-ascii?Q?MusHsnANgO+EtSApKzuusr6SP1dfyqqDjHIy71veKcokxvZZzi1irY7Xu6i7?= =?us-ascii?Q?cUZo+T6UP2K/5kA8XnISgB/RVzaI9Ekt/Wf4NV73FL2xm6y8Z6DABZBRkShO?= =?us-ascii?Q?4xtDqpIXmk2Z7xXobFHo5fpj9uWmi4jkeEh4f26kOSYed3SZf6dv/oHATqak?= =?us-ascii?Q?sYMj6uglwXLRf4ZUeKs1K1Wazu2n/J6Ex/C15AmkEpAC538Vz9jyeGbAUcVi?= =?us-ascii?Q?vZ6mD9EbVHzeeBe6VXFdT1G9cCTzpsOYyCEFebLyuxCgqTkpaUo6Bym1CjKg?= =?us-ascii?Q?UqiER8oFjHk9bZwIfYumQzCafTrInw7YQ1LkbgNDFLcfoKw4SWgSui6I9kp5?= =?us-ascii?Q?cbf2v0VAPUPYXxzmPwJBfYwmUILRBnTsSRzhvbti+PB6baHiUxVEEWIPtwSY?= =?us-ascii?Q?VSTsDGMkCRJasZLeGhfQsahMeh4Wl3mbC+zR+6WseJfdoKaWFEhYOo4afty1?= =?us-ascii?Q?PxVhux9mGEbaBnG8IC4MwGHplVK5TqEUpxCdd9H0ibbHdjQjzNdyymjdmwkz?= =?us-ascii?Q?2HuU6yVdDz19bxN8N99jgTLs5YY4JhsxscWUCuI1ufLrx8iu5YHyfI9TE2XA?= =?us-ascii?Q?eLrh2mayCFGLxqt7FuQx1VHo/h5X8VuEy6mqRXUSzVVWneAnjeTxBqARCkNn?= =?us-ascii?Q?QD1SSBwRQ1k/8XwV0zeWwIvYsK5Up4AkEOnL80vMGsSkRPEzGtTDZrOEHOCM?= =?us-ascii?Q?eDGeTyE03prtrlzP3b7GaNr34J9rno5yHDaWC52BwTD0CaLxmOi+Gm5LyGgT?= =?us-ascii?Q?4lR30UA1pXlP+ayg9TMJwaL2eiBi6edrgYCr28KVYCGaQ3m1kqALH6dwPE51?= =?us-ascii?Q?8Ls8k46vsTGqfatdVvVfcNxf7BUsKSRZSkBshqsZqDrnJu0/BrHZJG5npTyM?= =?us-ascii?Q?34yYXhgqx9gYS2lNXrh8biNV2WbAHmr06O9ETjo3fvG04k3KP6vBvz6HVyDe?= =?us-ascii?Q?wwDLUK7TwEawlsE/tuDRKQXDiKK6WDf9cdbbSa8b2/5Gv9MFfNymSKIWA5Xj?= =?us-ascii?Q?5wTxm+MnTVwAii1rUQBuoQU/MpQiI9S/8q1BQC61GWKsBVQJSsAvVxZ1YBtV?= =?us-ascii?Q?/9KlBo4PFH8GmgN3Q+gwGVcnMNumnmVwXqmW92aelIPzzFOcpxuaVoVKIge9?= =?us-ascii?Q?JbHAFWZ9NqZ8ry/2gyOkCeCGGP4qhWAgG3QB14VsP293hf/tk/iJN6VSDEOO?= =?us-ascii?Q?U0V9w8/O9sUDUt9ZQ/5jDGd8R83RnlY5XO73H9e1qSBnRsD5nu3tYw7OG7gD?= =?us-ascii?Q?OMFKiuUJZILW8i5I555ABWQasrxJv+7wpJ8ksWJHXh8lW///c1Xem0LnwOXW?= =?us-ascii?Q?KuLKV4ulTrDvNorxFB0b0/Wo/1xy++/TAwj/BPWc0kOYuwkBIdjARfA0FtpE?= =?us-ascii?Q?bXGh0+/dH8SvzqxtXwCrjsQ5bPRqCdluao4EvHlUb9SnvtN5hIVQHzIclky+?= =?us-ascii?Q?W6FFMC6CgOpinFMHT9nIfODQcsNfozzwKRTh+nIVg+LfcyupR+L6JYqdOVKM?= =?us-ascii?Q?/wNIHPuO/o1NQYlGjOciTwz5uudquuRwl2econbc6yAOgmGES16Bum5DV1KM?= =?us-ascii?Q?NQ=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 8dfe8aaf-1ca3-435b-7a89-08db6d7cce4d X-MS-Exchange-CrossTenant-AuthSource: DS0PR11MB7309.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jun 2023 08:45:00.9757 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 7qURZ4amlrWndLyh/NOI9Rd3gisQpL9Kb5C61IAw9h2/9/FJ34qWsek7MNcLtWFyojjSraBMH06AT0kB3qjPb2wm2W+rMpM/yy/m00r6DGE= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR11MB7120 X-OriginatorOrg: intel.com X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org On Wed, Jun 14, 2023 at 12:33:10PM -0700, Stephen Hemminger wrote: > On Fri, 11 Dec 2020 15:51:11 +0000 > Bruce Richardson <bruce.richardson@intel.com> wrote: > > > Traditionally any apps built using DPDK had to support the same > > instruction sets as supported when the DPDK SDK itself was built, since > > that was "leaked" through to the end-app and DPDK headers via > > RTE_MACHINE_CPUFLAG_* values. Therefore, when converting over to meson > > for app build correctness the "-march=" flag was included in the > > pkg-config cflags output. > > > > However, since the DPDK-specific CPU flags are now obsolete, and we > > instead check directly for compiler-defined flags, we should no longer > > need to force the exact same architecture match in all cases. To > > faciliate such flexibility, a new pkg_config_machine_args array - which > > defaults to the existing machine_args array has been defined. The > > individual architectures - x86, arm and ppc - can choose if and how to > > override this value themselves. > > > > For x86, since SSE4.2 is the minimum instruction-set level needed to run > > DPDK, and since some header files assume that minimum level of > > instruction set support, we override the "-march=" value with "-msse4" > > for the pkg-config file. This allows end applications to set their own > > "march" value while still ensuring valid DPDK compilation. > > > > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> > > This looks fine, and can see no negatives in the comments. > Could you rebase and resubmit a new version if still relevant? > There seemed to be a general lack of interest in it, sadly, so not sure I'll resubmit.