[PATCH tip/core/rcu 04/30] rcu: Provide debug symbols and line numbers in KCSAN runs

[paulmck]

From: "Paul E. McKenney" <paulmck@xxxxxxxxxx>

This commit adds "-g -fno-omit-frame-pointer" to ease interpretation
of KCSAN output, but only for CONFIG_KCSAN=y kerrnels.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
 kernel/rcu/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
index 82d5fba..f91f2c2 100644
--- a/kernel/rcu/Makefile
+++ b/kernel/rcu/Makefile
@@ -3,6 +3,10 @@
 # and is generally not a function of system call inputs.
 KCOV_INSTRUMENT := n
 
+ifeq ($(CONFIG_KCSAN),y)
+KBUILD_CFLAGS += -g -fno-omit-frame-pointer
+endif
+
 obj-y += update.o sync.o
 obj-$(CONFIG_TREE_SRCU) += srcutree.o
 obj-$(CONFIG_TINY_SRCU) += srcutiny.o
-- 
2.9.5