On Fri, May 29, 2020 at 08:36:56PM +0200, Marco Elver wrote:
> > +/* Section for code which can't be instrumented at all */
> > +#define noinstr
> > \
> > + noinline notrace __attribute((__section__(".noinstr.text")))
> >
On Fri, 29 May 2020 at 19:08, Peter Zijlstra wrote:
[...]
>
> Doesn't this mean we can do the below?
If nobody complains about the lack of __no_kcsan_or_inline, let's do
it. See comments below.
> ---
> Documentation/dev-tools/kcsan.rst | 6 --
> arch/x86/include/asm/bitops.h | 6
On Thu, May 21, 2020 at 04:20:41PM +0200, Marco Elver wrote:
> Some compilers incorrectly inline small __no_kcsan functions, which then
> results in instrumenting the accesses. For this reason, the 'noinline'
> attribute was added to __no_kcsan_or_inline. All known versions of GCC
> are affected
Some compilers incorrectly inline small __no_kcsan functions, which then
results in instrumenting the accesses. For this reason, the 'noinline'
attribute was added to __no_kcsan_or_inline. All known versions of GCC
are affected by this. Supported version of Clang are unaffected, and
never inlines
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