On Thu, Jun 04, 2020 at 06:57:03PM +0200, Peter Zijlstra wrote: > I think I see, what happens is that these headers end up in the VDSO > build, and that doesn't have these CFLAGS, because userspace. > > Let me see what to do about that.
I feel like the below is cheating, but it's the best I could find :/ VDSO including kernel headers and the utter maze that our kernel headers are makes it really hard to untangle :/ This builds sparc64-defconfig and sparc64-all{no,mod}config. Dave, does this work for you, or should I try hardder? --- arch/sparc/include/asm/percpu_64.h | 2 ++ arch/sparc/include/asm/trap_block.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/sparc/include/asm/percpu_64.h b/arch/sparc/include/asm/percpu_64.h index 32ef6f05cc565..a8786a4b90b6b 100644 --- a/arch/sparc/include/asm/percpu_64.h +++ b/arch/sparc/include/asm/percpu_64.h @@ -4,7 +4,9 @@ #include <linux/compiler.h> +#ifndef BUILD_VDSO register unsigned long __local_per_cpu_offset asm("g5"); +#endif #ifdef CONFIG_SMP diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h index 0f6d0c4f66838..ace0d48e837e5 100644 --- a/arch/sparc/include/asm/trap_block.h +++ b/arch/sparc/include/asm/trap_block.h @@ -2,6 +2,8 @@ #ifndef _SPARC_TRAP_BLOCK_H #define _SPARC_TRAP_BLOCK_H +#include <linux/threads.h> + #include <asm/hypervisor.h> #include <asm/asi.h>