On Fri, Oct 25, 2019 at 9:28 PM Russell King - ARM Linux admin
<[email protected]> wrote:
>
> On Fri, Oct 25, 2019 at 08:17:36PM +0100, Russell King - ARM Linux admin
> wrote:
> > On Thu, Oct 24, 2019 at 01:47:24PM +0100, Vincenzo Frascino wrote:
>
> Okay, having discussed with Arnd what the current situation is, he
> points out that he needs an additional patch to solve some further
> build issues with the generic VDSO patches - caused by the Kconfig
> changes in your first patch.
>
> I'd rather that gets fixed up before I apply the patches, rather
> than applying a set of patches and a fix on top.
>
> Please re-spin with Arnd's Kconfig changes included.
For reference, this is the change I needed to get randconfig builds working
in configurations that did not enable CONFIG_VDSO:
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 32184065ceda..776ac0f4ef0e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -60,8 +60,6 @@ config ARM
select GENERIC_SMP_IDLE_THREAD
select GENERIC_STRNCPY_FROM_USER
select GENERIC_STRNLEN_USER
- select GENERIC_GETTIMEOFDAY
- select GENERIC_VDSO_32
select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT
@@ -112,7 +110,6 @@ config ARM
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UID16
select HAVE_VIRT_CPU_ACCOUNTING_GEN
- select HAVE_GENERIC_VDSO if AEABI
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_REL
select NEED_DMA_MAP_STATE
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 608a1f6414c2..dce67c6834a8 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -896,7 +896,10 @@ config VDSO
bool "Enable VDSO for acceleration of some system calls"
depends on AEABI && MMU && CPU_V7
default y if ARM_ARCH_TIMER
+ select HAVE_GENERIC_VDSO
select GENERIC_TIME_VSYSCALL
+ select GENERIC_VDSO_32
+ select GENERIC_GETTIMEOFDAY
help
Place in the process address space an ELF shared object
providing fast implementations of gettimeofday and
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