linux-kernel - Re: [PATCH] usr/include: openrisc: don't HDRTEST bpf_perf

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Message-ID: <CAK7LNAQpZvXREY5+4H_WA4UOgYpYoTLS=bpb_Gkb+SyetKh_tw@mail.gmail.com>
Date: Sun, 4 May 2025 01:13:25 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Randy Dunlap <rdunlap@...radead.org>
Cc: linux-kernel@...r.kernel.org, Jonas Bonn <jonas@...thpole.se>, 
	Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>, Stafford Horne <shorne@...il.com>, 
	linux-openrisc@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] usr/include: openrisc: don't HDRTEST bpf_perf_event.h

On Sun, May 4, 2025 at 1:01 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> On Sat, Apr 26, 2025 at 12:08 PM Randy Dunlap <rdunlap@...radead.org> wrote:
> >
> > Since openrisc does not support PERF_EVENTS, omit the HDRTEST of
> > bpf_perf_event.h for arch/openrisc/.
> >
> > Fixes a build error:
> > usr/include/linux/bpf_perf_event.h:14:28: error: field 'regs' has incomplete type
>
>
>
> Where can I get openrisc compiler that enables CONFIG_CC_CAN_LINK?

Never mind.
I downloaded a one from
https://github.com/stffrdhrn/or1k-toolchain-build/releases

Hmm, I did not observe an error like that.

Instead, I got a different error message.

  HDRTEST usr/include/linux/bpf_perf_event.h
In file included from <command-line>:
./usr/include/linux/bpf_perf_event.h:15:9: error: unknown type name '__u64'
   15 |         __u64 sample_period;
      |         ^~~~~
./usr/include/linux/bpf_perf_event.h:16:9: error: unknown type name '__u64'
   16 |         __u64 addr;
      |         ^~~~~




diff --git a/include/uapi/linux/bpf_perf_event.h
b/include/uapi/linux/bpf_perf_event.h
index eb1b9d21250c..61264bdda988 100644
--- a/include/uapi/linux/bpf_perf_event.h
+++ b/include/uapi/linux/bpf_perf_event.h
@@ -8,6 +8,7 @@
 #ifndef _UAPI__LINUX_BPF_PERF_EVENT_H__
 #define _UAPI__LINUX_BPF_PERF_EVENT_H__

+#include <linux/types.h>
 #include <asm/bpf_perf_event.h>

 struct bpf_perf_event_data {











>
>
> > Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> > Cc: Masahiro Yamada <masahiroy@...nel.org>
> > Cc: Jonas Bonn <jonas@...thpole.se>
> > Cc: Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>
> > Cc: Stafford Horne <shorne@...il.com>
> > Cc: linux-openrisc@...r.kernel.org
> > Cc: linux-kbuild@...r.kernel.org
> > ---
> >  usr/include/Makefile |    4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > --- linux-next-20250424.orig/usr/include/Makefile
> > +++ linux-next-20250424/usr/include/Makefile
> > @@ -59,6 +59,10 @@ ifeq ($(SRCARCH),arc)
> >  no-header-test += linux/bpf_perf_event.h
> >  endif
> >
> > +ifeq ($(SRCARCH),openrisc)
> > +no-header-test += linux/bpf_perf_event.h
> > +endif
> > +
> >  ifeq ($(SRCARCH),powerpc)
> >  no-header-test += linux/bpf_perf_event.h
> >  endif
>
>
>
> --
> Best Regards
> Masahiro Yamada



-- 
Best Regards
Masahiro Yamada