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Thu, 29 Feb 2024 05:01:03 -0800 (PST) Message-ID: <78032daf-9052-4ab8-ba05-456fa4aee17b@suse.com> Date: Thu, 29 Feb 2024 14:01:01 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] README: bump minimum required clang/llvm version Content-Language: en-US To: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= Cc: Andrew Cooper , George Dunlap , Julien Grall , Stefano Stabellini , Wei Liu , Doug Goldstein , xen-devel@lists.xenproject.org References: <20240229095529.17723-1-roger.pau@citrix.com> <20240229095529.17723-2-roger.pau@citrix.com> <780ec3ab-08e3-4fd8-a85f-0e89ea75dcc8@suse.com> From: Jan Beulich Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 29.02.2024 13:40, Roger Pau Monné wrote: > On Thu, Feb 29, 2024 at 01:11:55PM +0100, Jan Beulich wrote: >> On 29.02.2024 10:55, Roger Pau Monne wrote: >>> --- a/README >>> +++ b/README >>> @@ -41,7 +41,7 @@ provided by your OS distributor: >>> - GCC 4.1.2_20070115 or later >>> - GNU Binutils 2.16.91.0.5 or later >>> or >>> - - Clang/LLVM 3.5 or later >>> + - Clang/LLVM 14.0.0 or later >> >> Wow, that's a big step. I'm build-testing with Clang7 on one system and >> with Clang5 on another (and the latter more frequently than the former). >> If any real dependency on this new a version (about 3 years old?) was >> introduced, I would then no longer be able to locally test any Clang >> builds (and hence the risk would again increase that I introduce issues >> that affect just Clang builds). > > Would it be possible for you to update to a newer version? I see both > the OpenSUSE containers in Gitlab have newer versions of Clang. No. These are SLES versions which I'm not intending to touch. See https://lists.xen.org/archives/html/xen-devel/2024-02/msg01793.html and https://lists.xen.org/archives/html/xen-devel/2024-02/msg01795.html for why. The most recent piece of hardware I've installed a fresh (but not exactly new, yet still fully supported) SLES version on would apparently offer Clang7 only, either. If anything I could see about building a newer Clang version myself; no idea how involved that is compared to the building of gcc (which I consider pretty straightforward, but that's biased by me being used to doing so). Jan