On 11/2/18, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote:
> On Thu, Nov 1, 2018 at 11:32 PM Changbin Du <changbin.du@xxxxxxxxx> wrote:
>> On Thu, Nov 01, 2018 at 12:32:48PM +0900, Masahiro Yamada wrote:
>
> How about clang?
>
> For clang, -Og might be equivalent to -O1 at this moment, but I am not
> sure.
>
> In my understanding, Clang does not inline functions marked with 'static
> inline'
> for -Og (or -O1) optimization level.
>
> Theoretically, 'inline' keyword is a just hint for the compiler, after all.
I think this means that we cannot build the kernel in that configuration,
at least with CONFIG_OPTIMIZE_INLINING=y. Without that option,
every 'inline' becomes 'always_inline'.
Arnd
