[U-Boot] [PATCH 11/27] Blackfin: enable --gc-sections

[Mike Frysinger]

Start building all Blackfin boards with -ffunction-sections/-fdata-sections
and linking with --gc-sections.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 blackfin_config.mk    |    3 +++
 cpu/blackfin/Makefile |    1 +
 2 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/blackfin_config.mk b/blackfin_config.mk
index 7bde449..b2d94d5 100644
--- a/blackfin_config.mk
+++ b/blackfin_config.mk
@@ -27,6 +27,9 @@ CONFIG_BFIN_BOOT_MODE := $(strip $(subst ",,$(CONFIG_BFIN_BOOT_MODE)))
 PLATFORM_RELFLAGS += -ffixed-P5 -fomit-frame-pointer
 PLATFORM_CPPFLAGS += -DCONFIG_BLACKFIN
 
+LDFLAGS += --gc-sections
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+
 ifneq (,$(CONFIG_BFIN_CPU))
 PLATFORM_RELFLAGS += -mcpu=$(CONFIG_BFIN_CPU)
 endif
diff --git a/cpu/blackfin/Makefile b/cpu/blackfin/Makefile
index b4049ff..1378fd1 100644
--- a/cpu/blackfin/Makefile
+++ b/cpu/blackfin/Makefile
@@ -47,6 +47,7 @@ $(obj)bootrom-asm-offsets.h: $(obj)bootrom-asm-offsets.s
 
 # make sure our initcode (which goes into LDR) does not
 # have relocs or external references
+$(obj)initcode.o: CFLAGS += -fno-function-sections -fno-data-sections
 READINIT = env LC_ALL=C $(CROSS_COMPILE)readelf -s $<
 check_initcode: $(obj)initcode.o
 ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
-- 
1.6.1.1