From dda0896d875ec2d33b6de94df818a2f94526272b Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sat, 30 Jul 2011 00:34:59 +0200
Subject: use gcc/ld flags -ffunction-sections and --gc-sections

This will discard unused functions from the resulting binary
---
 firmware/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'firmware/Makefile')

diff --git a/firmware/Makefile b/firmware/Makefile
index 9a95d44..b085c33 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -249,7 +249,7 @@ CFLAGS += -Wredundant-decls -Wreturn-type -Wshadow
 CFLAGS += -Wbad-function-cast -Wsign-compare -Waggregate-return 
 CFLAGS += -Wa,-adhlns=$(subst $(suffix $<),.lst,$<) 
 CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
-#CFLAGS += -ffunction-sections -fdata-sections       
+CFLAGS += -ffunction-sections -fdata-sections
 
 # flags only for C
 CONLYFLAGS += -Wnested-externs 
@@ -315,7 +315,7 @@ LDFLAGS += -lc -lgcc
 LDFLAGS += $(CPLUSPLUS_LIB)
 LDFLAGS += $(patsubst %,-L%,$(EXTRA_LIBDIRS))
 LDFLAGS += $(patsubst %,-l%,$(EXTRA_LIBS))
-#LDFLAGS += --gc-sections
+LDFLAGS += -Wl,--gc-sections -Wl,--entry=_startup
 
 # Set Linker-Script Depending On Selected Memory and Controller
 ifeq ($(RUN_MODE),RUN_FROM_RAM)
-- 
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