[PATCH] firmware: Detect whether the toolchain supports pie and automatically disable the FW_PIC option

[Xiang W]

Signed-off-by: Xiang W <wxjstz at 126.com>
---
 firmware/objects.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/firmware/objects.mk b/firmware/objects.mk
index ce91c2f..96a8d7d 100644
--- a/firmware/objects.mk
+++ b/firmware/objects.mk
@@ -17,6 +17,10 @@ ifndef FW_PIC
 FW_PIC := y
 endif
 
+ifeq ($(FW_PIC),y)
+FW_PIC := $(shell $(CC) -nostdlib -fPIE -Wl,-pie /dev/null  -o /dev/null 2>/dev/null && echo y || echo n)
+endif
+
 ifeq ($(FW_PIC),y)
 firmware-genflags-y +=	-DFW_PIC
 firmware-asflags-y  +=	-fpic
-- 
2.30.2