Messages in this thread | | | From | David Laight <> | Subject | RE: Linux kernel in-tree Rust support | Date | Mon, 20 Jul 2020 14:46:41 +0000 |
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From: Adrian Bunk > Sent: 19 July 2020 19:19 ... > The correct range for a mandatory tool are the 6 to 12 years for gcc. > > Debian stable and Ubuntu LTS are providing (different) mechanisms > for installing the kernel from the next stable/LTS release 2 years > later[1] for supporting new hardware. > If kernel 5.12 LTS cannot be compiled on Ubuntu 20.04 LTS with > the 2019 gcc 9 there would be pain downstream.
We have customers that are (still) using RHEL6 (2.6.32 era). Since we have to build C++ programs that will run on those systems we have systems with very old toolchains. (Yes, you can build in a chroot or an a VM but that needs setting up quite carefully - easier to keep the old machine.)
It is rather a PITA when kernel builds deprecate the installed gcc. Now I'm not sure a 5.x kernel will run with the userspace from RHEL6. But I know it runs with that from Ubuntu 13.04. In a few years I'll be able to use the 13.04 system for release builds but it is still far too new for that. However I can no longer build 'current' custom kernels on it. I've other (newer) systems but they aren't any (maybe much) faster.
David
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