On Thu, May 28, 2020 at 12:04 PM Adrian Bunk <b...@stusta.de> wrote: > > On Thu, May 28, 2020 at 10:38:15AM -0700, Andre McCurdy wrote: > > On Thu, May 28, 2020 at 6:39 AM Adrian Bunk <b...@stusta.de> wrote: > > > > > > On Thu, May 28, 2020 at 02:20:02PM +0100, Richard Purdie wrote: > > > > > > > > Right, external toolchains I can understand having specific version > > > > requirements. What I don't really understand is external toolchains > > > > would come with their own headers in most cases I can think of? > > > > > > What I don't really understand is why kernel 4.1 was mentioned > > > in the submission. > > > > > > At kernel 4.1 times the latest gcc was gcc 5. > > > > > > gcc 5 is not even supported as host gcc in master, > > > and target builds are only tested with gcc 10. > > > > Is that an argument that users with an older vendor kernel should not > > update to newer versions of OE? Or that OE should provide older > > versions of gcc (in addition to the default) in order to support older > > kernels? > > It is an argument that ancient external toolchains will anyway not work. > > > And where does it leave OLDEST_KERNEL (currently set to 3.2.0)? > > OLDEST_KERNEL is just what is passed to glibc as lowest supported kernel, > other OE components might have higher version requirements. > > > If even kernel 4.1 is too old to be used with OE master then > > OLDEST_KERNEL looks like it should be updated to avoid giving users > > with older kernels false hope. > > linux-libc-headers are the headers used by the C library in the > toolchain, this is unrelated to the kernel running on the target.
All your statements are either well known information or already explained in the thread... What I was trying to get at is why you felt that bringing up the fact the kernel 4.1 was released at around the time gcc 5 was current is important? Presumably because you don't think people should be trying to use kernel 4.1 with gcc 10 in OE master? If so, then the logical conclusion is that either we should make that clearer (because it's not clear at the moment, especially for new users who don't fully understand how OLDEST_KERNEL is used) or provide an alternative (e.g. older versions of gcc) for users who can't follow the latest kernel but do want to follow the latest version of OE.
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