[PATCH v2 5/6] riscv/purgatory: Disable CFI

From: Sami Tolvanen
Date: Mon Jul 10 2023 - 14:36:18 EST


Filter out CC_FLAGS_CFI when CONFIG_CFI_CLANG.

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx>
---
arch/riscv/purgatory/Makefile | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/riscv/purgatory/Makefile b/arch/riscv/purgatory/Makefile
index dc20e166983e..9e6476719abb 100644
--- a/arch/riscv/purgatory/Makefile
+++ b/arch/riscv/purgatory/Makefile
@@ -77,6 +77,10 @@ ifdef CONFIG_STACKPROTECTOR_STRONG
PURGATORY_CFLAGS_REMOVE += -fstack-protector-strong
endif

+ifdef CONFIG_CFI_CLANG
+PURGATORY_CFLAGS_REMOVE += $(CC_FLAGS_CFI)
+endif
+
CFLAGS_REMOVE_purgatory.o += $(PURGATORY_CFLAGS_REMOVE)
CFLAGS_purgatory.o += $(PURGATORY_CFLAGS)

--
2.41.0.255.g8b1d071c50-goog