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authorAndrew Donnellan <andrew.donnellan@au1.ibm.com>2019-02-22 11:40:46 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2019-02-23 21:04:32 +1100
commitfb0b0a73b223fc113e961b1d921322844e9c30d9 (patch)
tree6434650ccfc25f1b878f5f449eb3fcc6b27a21aa /arch/powerpc/kernel/vdso64/Makefile
parent8f54a6f7406ee3b7b528c3ff569f6a51295b2608 (diff)
powerpc: Enable kcov
kcov provides kernel coverage data that's useful for fuzzing tools like syzkaller. Wire up kcov support on powerpc. Disable kcov instrumentation on the same files where we currently disable gcov and UBSan instrumentation, plus some additional exclusions which appear necessary to boot on book3e machines. Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Daniel Axtens <dja@axtens.net> # e6500 Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/vdso64/Makefile')
-rw-r--r--arch/powerpc/kernel/vdso64/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
index 69cecb346269..28e7d112aa2f 100644
--- a/arch/powerpc/kernel/vdso64/Makefile
+++ b/arch/powerpc/kernel/vdso64/Makefile
@@ -9,6 +9,7 @@ targets := $(obj-vdso64) vdso64.so vdso64.so.dbg
obj-vdso64 := $(addprefix $(obj)/, $(obj-vdso64))
GCOV_PROFILE := n
+KCOV_INSTRUMENT := n
UBSAN_SANITIZE := n
ccflags-y := -shared -fno-common -fno-builtin