Messages in this thread | | | Date | Mon, 2 Jun 2008 10:59:37 +0300 | From | Adrian Bunk <> | Subject | Re: initialization of static per-cpu variables |
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On Sun, May 25, 2008 at 08:35:24PM +1000, Rusty Russell wrote: > On Saturday 24 May 2008 00:29:04 Adrian Bunk wrote: > > On Thu, May 22, 2008 at 06:20:06PM +1000, Rusty Russell wrote: > > > Yep, it was an old toolchain used by Sparc: DaveM found this one. As you > > > say, it's ancient: I'm happy to queue a cleanup patch now everyone is on > > > a modern compiler. > > > > The commit says: > > > > GCC3.1 apparently gets confused about uninitialized sections > > > > We do still support gcc 3.2 (which is the same as 3.1 except for a C++ > > ABI change) as a compiler for the kernel. > > Adrian, that's a little silly. There are obviously bug fixes in 3.2 over > 3.1.0.
I've checked the announcements of 3.1.1 and 3.2, and at least for me nothing looked like it would fix this bug.
> Noone has complained about the introduction of multiple other cases > which would screw things up if they experienced this bug.
I doubt there is any serious userbase for gcc 3.2 left.
But your "now everyone is on a modern compiler" does not match what we announce as supported compiler versions for the kernel.
If you have a good reason for pushing the minimum required gcc version for compiling the kernel to 3.3 or 3.4 [1] you have my full support, but as long as we officially support gcc 3.2 we should try to break as few as possible - especially since it will take time until anyone will run into any breakage.
> Finally, it's a sparc64 problem and DaveM acked already.
Was it a sparc64 problem or a generic problem DaveM happened to run into on sparc?
> That's half the userbase!
sparc64 isn't that unpopular...
> Cheers, > Rusty.
Sorry if I'm sounding overly pedantic, but I want that what we try as good as possible that what we announce as being supported also works (even if this results in several workarounds shipped).
cu Adrian
[1] gcc 3.4 still has a serious userbase at least in ARM country, so you won't be able to drop support for it
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
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