> On Dec 24, 2019, at 7:41 PM, christophe leroy wrote:
>
>
>
>> Le 24/12/2019 à 03:24, Andy Lutomirski a écrit :
>>> On Mon, Dec 23, 2019 at 6:31 AM Christophe Leroy
>>> wrote:
>>>
>>> On powerpc, VDSO functions and syscalls cannot be implemented in C
>>> because the Linux kernel ABI
Le 24/12/2019 à 03:24, Andy Lutomirski a écrit :
On Mon, Dec 23, 2019 at 6:31 AM Christophe Leroy
wrote:
On powerpc, VDSO functions and syscalls cannot be implemented in C
because the Linux kernel ABI requires that CR[SO] bit is set in case
of error and cleared when no error.
As this
On Mon, Dec 23, 2019 at 6:31 AM Christophe Leroy
wrote:
>
> On powerpc, VDSO functions and syscalls cannot be implemented in C
> because the Linux kernel ABI requires that CR[SO] bit is set in case
> of error and cleared when no error.
>
> As this cannot be done in C, C VDSO functions and
On powerpc, VDSO functions and syscalls cannot be implemented in C
because the Linux kernel ABI requires that CR[SO] bit is set in case
of error and cleared when no error.
As this cannot be done in C, C VDSO functions and syscall'based
fallback need a trampoline in ASM.
By moving the fallback
