From c4af2d078d1e0438bf07c6664a82f3d143f9633b Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Wed, 26 Oct 2022 13:18:37 +0200
Subject: [PATCH RFC 2/9] efi/riscv: libstub: mark when compiling libstub

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@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

