Makefile: unconditionally disable SSP

Though -nostdlib is passed in CFLAGS, -fno-stack-protector must also be
passed to avoid linking errors related to undefined references to
'__stack_chk_guard' and '__stack_chk_fail' if toolchain enforces
-fstack-protector.

Fixes:
 - https://gitlab.com/kubu93/buildroot/-/jobs/1247043359

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Xiang W <wxjstz@126.com>

diff --git a/Makefile b/Makefile
index eeffe6b..6b64205 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -203,7 +203,7 @@ GENFLAGS    +=      $(libsbiutils-genflags-y)
 GENFLAGS       +=      $(platform-genflags-y)
 GENFLAGS       +=      $(firmware-genflags-y)
 
-CFLAGS         =       -g -Wall -Werror -ffreestanding -nostdlib -fno-strict-aliasing -O2
+CFLAGS         =       -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -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)