linux-kernel - Re: [PATCH v6 33/33] kselftest/riscv: kselftest for user mode cfi

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Message-ID: <CANXhq0q49k6q3ZGYqzczMeFr+_rrfa9mL7FMu62xPHeUKfvhMw@mail.gmail.com>
Date: Fri, 11 Oct 2024 19:43:30 +0800
From: Zong Li <zong.li@...ive.com>
To: Mark Brown <broonie@...nel.org>
Cc: Deepak Gupta <debug@...osinc.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...ux-foundation.org>, 
	"Liam R. Howlett" <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Conor Dooley <conor@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Christian Brauner <brauner@...nel.org>, Peter Zijlstra <peterz@...radead.org>, 
	Oleg Nesterov <oleg@...hat.com>, Eric Biederman <ebiederm@...ssion.com>, Kees Cook <kees@...nel.org>, 
	Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org, 
	linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-arch@...r.kernel.org, linux-doc@...r.kernel.org, 
	linux-kselftest@...r.kernel.org, alistair.francis@....com, 
	richard.henderson@...aro.org, jim.shu@...ive.com, andybnac@...il.com, 
	kito.cheng@...ive.com, charlie@...osinc.com, atishp@...osinc.com, 
	evan@...osinc.com, cleger@...osinc.com, alexghiti@...osinc.com, 
	samitolvanen@...gle.com, rick.p.edgecombe@...el.com
Subject: Re: [PATCH v6 33/33] kselftest/riscv: kselftest for user mode cfi

On Fri, Oct 11, 2024 at 6:18 PM Mark Brown <broonie@...nel.org> wrote:
>
> On Fri, Oct 11, 2024 at 01:44:55PM +0800, Zong Li wrote:
> > On Wed, Oct 9, 2024 at 7:46 AM Deepak Gupta <debug@...osinc.com> wrote:
>
> > > +       if (si->si_code == SEGV_CPERR) {
>
> > Hi Deepak,
> > I got some errors when building this test, I suppose they should be
> > fixed in the next version.
>
> > riscv_cfi_test.c: In function 'sigsegv_handler':
> > riscv_cfi_test.c:17:28: error: 'SEGV_CPERR' undeclared (first use in
> > this function); did you mean 'SEGV_ACCERR'?
> >    17 |         if (si->si_code == SEGV_CPERR) {
> >       |                            ^~~~~~~~~~
> >       |                            SEGV_ACCERR
> >
>
> Did you run "make headers_install" prior to building kselftest to get
> the current kernel's headers available for userspace builds?

Yes, I have run "make header" and "make header_install" before
building the kselftest. This error happens when I cross compiled it,
perhaps I can help to check if it is missing some header files or
header search path.