Messages in this thread Patch in this message | | | Date | Thu, 4 Jun 2020 22:41:16 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH v3 1/5] sparc64: Fix asm/percpu.h build error |
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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>
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