tracing: Update undefined symbols allow list for simple_ring_buffer

Undefined symbols are not allowed for simple_ring_buffer.c. But some
compiler emitted symbols are missing in the allowlist. Update it.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Fixes: a717943d8ecc ("tracing: Check for undefined symbols in simple_ring_buffer")
Closes: https://lore.kernel.org/all/20260311221816.GA316631@ax162/
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://patch.msgid.link/20260312113535.2213350-1-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 3182e1bc1cf7097ae85952ceefd25e375c244126..3cc490aadc995929b5f999d5af78e8e7b36ed16f 100644 (file)
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -137,7 +137,8 @@ obj-$(CONFIG_TRACE_REMOTE_TEST) += remote_test.o
 # to all kernel symbols. Fail the build if forbidden symbols are found.
 #
 UNDEFINED_ALLOWLIST := memset alt_cb_patch_nops __x86 __ubsan __asan __kasan __gcov __aeabi_unwind
-UNDEFINED_ALLOWLIST += __stack_chk_fail stackleak_track_stack __ref_stack __sanitizer
+UNDEFINED_ALLOWLIST += __stack_chk_fail stackleak_track_stack __ref_stack __sanitizer llvm_gcda llvm_gcov
+UNDEFINED_ALLOWLIST += .TOC\. __clear_pages_unrolled __memmove copy_page warn_slowpath_fmt
 UNDEFINED_ALLOWLIST := $(addprefix -e , $(UNDEFINED_ALLOWLIST))
 
 quiet_cmd_check_undefined = NM      $<