kasantest: -fno-builtin is enabled by default

The strlen function called by kasantest will be optimized by the compiler, and the strlen function implemented in NX will not be called. Adding -fno-builtin can solve the problem.

Signed-off-by: wangmingrong1 <[email protected]>

Author: W-M-R

testing/mm/kasantest/CMakeLists.txt

@@ -22,6 +22,7 @@
 
 if(CONFIG_TESTING_KASAN)
   set(CFLAGS
+      -fno-builtin
       -Wno-error
       -Wno-use-after-free
       -Wno-array-bounds

testing/mm/kasantest/Makefile

@@ -32,6 +32,6 @@ STACKSIZE = $(CONFIG_TESTING_KASAN_STACKSIZE)
 CFLAGS += -Wno-error -Wno-use-after-free -Wno-stringop-overflow
 CFLAGS += -Wno-array-bounds -Wno-free-nonheap-object
 CFLAGS += -Wno-unused-value -Wno-unused-variable
-CFLAGS += "-O0"
+CFLAGS += -fno-builtin "-O0"
 
 include $(APPDIR)/Application.mk