Sparc64 emits empty symmbol names. Skips them when establishing the
allowlist and when extracing undefined symbols.
Fixes: 1211907ac0b5 ("tracing: Generate undef symbols allowlist for
simple_ring_buffer")
Reported-by: Guenter Roeck <[email protected]>
Closes:
https://lore.kernel.org/all/[email protected]/
Signed-off-by: Vincent Donnefort <[email protected]>
---
kernel/trace/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index f934ff586bd4..0e1846f7dda3 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -146,11 +146,11 @@ KASAN_SANITIZE_undefsyms_base.o := y
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 $$2}')
+ $(shell $(NM) -u $(obj)/undefsyms_base.o 2>/dev/null |
awk '$$2 {print $$2}')
quiet_cmd_check_undefined = NM $<
cmd_check_undefined = \
- undefsyms=$$($(NM) -u $< | grep -v $(addprefix -e ,
$(UNDEFINED_ALLOWLIST)) || true); \
+ undefsyms=$$($(NM) -u $< | awk '$$2 {print $$2}' | grep -v
$(addprefix -e , $(UNDEFINED_ALLOWLIST)) || true); \
if [ -n "$$undefsyms" ]; then \
echo "Unexpected symbols in $<:" >&2; \
echo "$$undefsyms" >&2; \
--
2.55.0.1082.g2b9226bbc0-goog
