On Sat, Mar 06, 2021 at 01:28:22AM +0900, Masahiro Yamada wrote:
> > +orig_name := $(if $(CONFIG_CC_IS_GCC),GCC,CLANG)
> > +orig_minor := $(shell expr $(if
> > $(CONFIG_CC_IS_GCC),$(CONFIG_GCC_VERSION),$(CONFIG_CLANG_VERSION)) / 100)
> > +cur_namever := $(shell $(srctree)/scripts/cc-version.sh
On Tue, Feb 2, 2021 at 6:13 AM Josh Poimboeuf wrote:
>
> On Fri, Jan 29, 2021 at 08:17:51AM +0900, Masahiro Yamada wrote:
> > [3]
> > Peterz already pointed out asm-goto as an example of ABI mismatch.
> >
> > I remember a trouble reported in the past due
> > to the mismatch of -mstack-protector-gu
On Fri, Jan 29, 2021 at 08:17:51AM +0900, Masahiro Yamada wrote:
> [3]
> Peterz already pointed out asm-goto as an example of ABI mismatch.
>
> I remember a trouble reported in the past due
> to the mismatch of -mstack-protector-guard-offset.
>
> https://bugzilla.kernel.org/show_bug.cgi?id=201891
On Fri, Jan 29, 2021 at 7:08 AM Josh Poimboeuf wrote:
>
> On Thu, Jan 28, 2021 at 01:45:51PM -0800, Linus Torvalds wrote:
> > On Thu, Jan 28, 2021 at 1:34 PM Josh Poimboeuf wrote:
> > >
> > > On Thu, Jan 28, 2021 at 01:23:11PM -0800, Linus Torvalds wrote:
> > > > THAT workaround is long gone, but
On Thu, Jan 28, 2021 at 01:45:51PM -0800, Linus Torvalds wrote:
> On Thu, Jan 28, 2021 at 1:34 PM Josh Poimboeuf wrote:
> >
> > On Thu, Jan 28, 2021 at 01:23:11PM -0800, Linus Torvalds wrote:
> > > THAT workaround is long gone, but I didn't check what other ones we
> > > might have now. But the gc
On Thu, Jan 28, 2021 at 1:34 PM Josh Poimboeuf wrote:
>
> On Thu, Jan 28, 2021 at 01:23:11PM -0800, Linus Torvalds wrote:
> > THAT workaround is long gone, but I didn't check what other ones we
> > might have now. But the gcc version checks we _do_ have are not
> > necessarily about major versions
On Thu, Jan 28, 2021 at 01:23:11PM -0800, Linus Torvalds wrote:
> On Thu, Jan 28, 2021 at 1:03 PM Linus Torvalds
> wrote:
> >
> > I really think the whole compiler version check is purely voodoo
> > programming.
>
> .. but there are obviously potentially things we - in the kernel - do
> that may
On Thu, Jan 28, 2021 at 1:03 PM Linus Torvalds
wrote:
>
> I really think the whole compiler version check is purely voodoo programming.
.. but there are obviously potentially things we - in the kernel - do
that may make certain compiler versions incompatible. We long long ago
used to have things
On Thu, Jan 28, 2021 at 12:52 PM Josh Poimboeuf wrote:
>
> Huh? Why would you do a "make oldconfig" on a distro-released kernel
> before building an OOT module?
I guarantee you that this patch will *make* people do that.
> Hm? Are you saying the check is too strict, since GCC9 binaries _might_
On Thu, Jan 28, 2021 at 12:24:45PM -0800, Linus Torvalds wrote:
> On Thu, Jan 28, 2021 at 12:08 PM Josh Poimboeuf wrote:
> >
> > Add a check for compiler mismatch, but only check the major version.
>
> I think this is wrong for multiple reasons.
>
> The most fundamental reason is that it's point
On Thu, Jan 28, 2021 at 12:08 PM Josh Poimboeuf wrote:
>
> Add a check for compiler mismatch, but only check the major version.
I think this is wrong for multiple reasons.
The most fundamental reason is that it's pointless and doesn't
actually do what you claim it does.
Just doing a "make oldco
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