[PATCH RFC 2/9] efi/riscv: libstub: mark when compiling libstub

[Heiko Stuebner]

We want to runtime-optimize some core functions (str*, mem*)
but not have this leak into libstub. Instead libstub
for the short while it's running should just use the generic
implementation.

To be able to determine whether functions are getting compiled
as part of libstub or not, add a compile-flag we can check
via #ifdef.

Signed-off-by: Heiko Stuebner <heiko at sntech.de>
---
 drivers/firmware/efi/libstub/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index b1601aad7e1a..39c8e3da1937 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -25,7 +25,7 @@ cflags-$(CONFIG_ARM)		:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
 				   -fno-builtin -fpic \
 				   $(call cc-option,-mno-single-pic-base)
 cflags-$(CONFIG_RISCV)		:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
-				   -fpic
+				   -fpic -DRISCV_EFISTUB
 cflags-$(CONFIG_LOONGARCH)	:= $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) \
 				   -fpie
 
-- 
2.35.1