arm64: entry: don't instrument entry code with KCOV

[linux-2.6-microblaze.git] / arch / arm64 / kernel / Makefile

diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 6cc9773..787c3c8 100644 (file)
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -14,6 +14,11 @@ CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
 CFLAGS_REMOVE_syscall.o         = -fstack-protector -fstack-protector-strong
 CFLAGS_syscall.o       += -fno-stack-protector
 
+# It's not safe to invoke KCOV when portions of the kernel environment aren't
+# available or are out-of-sync with HW state. Since `noinstr` doesn't always
+# inhibit KCOV instrumentation, disable it for the entire compilation unit.
+KCOV_INSTRUMENT_entry.o := n
+
 # Object file lists.
 obj-y                  := debug-monitors.o entry.o irq.o fpsimd.o              \
                           entry-common.o entry-fpsimd.o process.o ptrace.o     \