From 049ad0b3877352527ab470eba33bc767e9b54961 Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Mon, 6 Jan 2020 18:41:06 -0800 Subject: [PATCH] build: Use -ffreestanding this is a stand-alone/baremetal application, therefore demanding -ffreestanding would help it compile with hosted toolchains e.g. ( linux toolchains ), it also ensures that it won't be using platform optimizations like inlining mem* str* functions which gcc might decide especially with wrapper string functions in opensbi code Signed-off-by: Khem Raj Reviewed-by: Anup Patel --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 9aff0703..aac422ad 100644 --- a/Makefile +++ b/Makefile @@ -159,7 +159,7 @@ GENFLAGS += $(libsbiutils-genflags-y) GENFLAGS += $(platform-genflags-y) GENFLAGS += $(firmware-genflags-y) -CFLAGS = -g -Wall -Werror -nostdlib -fno-strict-aliasing -O2 +CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-strict-aliasing -O2 CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls CFLAGS += -mno-save-restore -mstrict-align CFLAGS += -mabi=$(PLATFORM_RISCV_ABI) -march=$(PLATFORM_RISCV_ISA)