make sure uninitialized vars doesnt end up on COMMON_section

armsrc/Makefile

@@ -20,7 +20,7 @@ endif
 #in the next section to remove that particular feature from compilation.
 # NO space,TABs after the "\" sign.
 APP_CFLAGS = $(PLATFORM_DEFS) \
-             -ffunction-sections -fdata-sections
+             -ffunction-sections -fdata-sections -fno-common
 
 SRC_LF = lfops.c lfsampling.c pcf7931.c lfdemod.c lfadc.c
 SRC_ISO15693 = iso15693.c iso15693tools.c

bootrom/Makefile

@@ -25,8 +25,8 @@ VERSIONSRC = version.c
 # stdint.h provided locally until GCC 4.5 becomes C99 compliant
 APP_CFLAGS = -I. -ffunction-sections -fdata-sections
 
-# stack-protect , no-pie reduces size on Gentoo Hardened 8.2 gcc
-APP_CFLAGS += -fno-stack-protector -fno-pie
+# stack-protect , no-pie reduces size on Gentoo Hardened 8.2 gcc,  no-common makes sure uninitalized vars doesn't end up in COMMON area
+APP_CFLAGS += -fno-stack-protector -fno-pie -fno-common
 
 
 # Do not move this inclusion before the definition of {THUMB,ASM,ARM}SRC