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[34.140.183.197]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fd6301bd1sm17220565e9.11.2026.05.14.02.54.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 May 2026 02:54:53 -0700 (PDT) Date: Thu, 14 May 2026 10:54:48 +0100 From: Vincent Donnefort To: Steven Rostedt Cc: Arnd Bergmann , Masami Hiramatsu , Nathan Chancellor , Marc Zyngier , Arnd Bergmann , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH] tracing: samples: avoid warning about __aeabi_unwind_cpp_pr1 Message-ID: References: <20260323105646.590718-1-arnd@kernel.org> <20260513105939.3bbdc174@gandalf.local.home> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260513105939.3bbdc174@gandalf.local.home> On Wed, May 13, 2026 at 10:59:39AM -0400, Steven Rostedt wrote: > > Vincent, > > Is this patch needed? That is, did it fall through the cracks? Yes, I believe it is! Reviewed-by: Vincent Donnefort > > -- Steve > > On Mon, 23 Mar 2026 11:56:41 +0100 > Arnd Bergmann wrote: > > > From: Arnd Bergmann > > > > The now more verbose check found another symbol missing from the whitelist: > > > > Unexpected symbols in kernel/trace/simple_ring_buffer.o: > > U __aeabi_unwind_cpp_pr1 > > > > Add this to the Makefile. > > > > Fixes: 1211907ac0b5 ("tracing: Generate undef symbols allowlist for simple_ring_buffer") > > Signed-off-by: Arnd Bergmann > > --- > > kernel/trace/Makefile | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile > > index d662c1a64cd5..aba6a25db17b 100644 > > --- a/kernel/trace/Makefile > > +++ b/kernel/trace/Makefile > > @@ -169,8 +169,8 @@ targets += undefsyms_base.o > > # because it is not linked into vmlinux. > > KASAN_SANITIZE_undefsyms_base.o := y > > > > -UNDEFINED_ALLOWLIST = __asan __gcov __kasan __kcsan __hwasan __sancov __sanitizer __tsan __ubsan __x86_indirect_thunk \ > > - __msan simple_ring_buffer \ > > +UNDEFINED_ALLOWLIST = __asan __gcov __kasan __kcsan __hwasan __sancov __sanitizer __tsan __ubsan __msan \ > > + __x86_indirect_thunk __aeabi_unwind_cpp simple_ring_buffer \ > > $(shell $(NM) -u $(obj)/undefsyms_base.o 2>/dev/null | awk '{print $$2}') > > > > quiet_cmd_check_undefined = NM $< >