[PATCH 6/7] kcov: disable instrumentation for genalloc and bitmap

From: Jiao, Joey
Date: Tue Jan 14 2025 - 00:37:38 EST


gen_pool_alloc in kcov_map_add triggers recursive call, which trigger
BUG: TASK stack guard page was hit at ffffc9000451ff38.

Disable KCOV to avoid the recursive call.

Signed-off-by: Jiao, Joey <quic_jiangenj@xxxxxxxxxxx>
---
lib/Makefile | 2 ++
1 file changed, 2 insertions(+)

diff --git a/lib/Makefile b/lib/Makefile
index a8155c972f02856fcc61ee949ddda436cfe211ff..7a110a9a4a527b881ca3a0239d0b60511cb6e38b 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -15,6 +15,8 @@ KCOV_INSTRUMENT_debugobjects.o := n
KCOV_INSTRUMENT_dynamic_debug.o := n
KCOV_INSTRUMENT_fault-inject.o := n
KCOV_INSTRUMENT_find_bit.o := n
+KCOV_INSTRUMENT_genalloc.o := n
+KCOV_INSTRUMENT_bitmap.o := n

# string.o implements standard library functions like memset/memcpy etc.
# Use -ffreestanding to ensure that the compiler does not try to "optimize"

--
2.47.1