[for-linus][PATCH 1/2] ring-buffer remote: Avoid unexpected symbol warnings (arm, s390)

[Steven Rostedt]

From: Arnd Bergmann <arnd@xxxxxxxx>

The now more verbose check found more architecture specific symbol
missing from the whitelist, during randconfig testing on s390
and 32-bit arm:

Unexpected symbols in kernel/trace/simple_ring_buffer.o:
         U __aeabi_unwind_cpp_pr1

Unexpected symbols in kernel/trace/simple_ring_buffer.o:
                 U __s390_indirect_jump_r1
                 U __s390_indirect_jump_r10
                 U __s390_indirect_jump_r14
                 U __s390_indirect_jump_r2
                 U __s390_indirect_jump_r5
                 U __s390_indirect_jump_r7
                 U __s390_indirect_jump_r8
                 U __s390_indirect_jump_r9
make[6]: *** [/home/arnd/arm-soc/kernel/trace/Makefile:160: kernel/trace/simple_ring_buffer.o.checked] Error 1

Add these to the list and keep it roughly sorted into sanitizer
and architecture symbols.

Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Nathan Chancellor <nathan@xxxxxxxxxx>
Cc: Vincent Donnefort <vdonnefort@xxxxxxxxxx>
Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Link: https://patch.msgid.link/20260515105717.1023007-1-arnd@xxxxxxxxxx
Fixes: 1211907ac0b5 ("tracing: Generate undef symbols allowlist for simple_ring_buffer")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 kernel/trace/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 1decdce8cbef..9b0834134cae 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -143,8 +143,8 @@ obj-$(CONFIG_TRACE_REMOTE_TEST) += remote_test.o
 targets += undefsyms_base.o
 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 \
+		      __aeabi_unwind_cpp __s390_indirect_jump __x86_indirect_thunk simple_ring_buffer \
 		      $(shell $(NM) -u $(obj)/undefsyms_base.o 2>/dev/null | awk '{print $$2}')
 
 quiet_cmd_check_undefined = NM      $<
-- 
2.53.0