On 28/05/2010 05:08, Thomas Chou wrote:
Follow the discussion of Charles Manning and Mike Frysinger. Using gc_sections helps reduce image size.
Configuring for nios2-generic board... Before, text data bss dec hex filename 123979 3724 22892 150595 24c43 /tmp/u-boot/u-boot After, text data bss dec hex filename 115983 3800 22732 142515 22cb3 /tmp/u-boot/u-boot
Signed-off-by: Thomas Chou thomas@wytron.com.tw
arch/nios2/config.mk | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/nios2/config.mk b/arch/nios2/config.mk index 793cc43..aba96b3 100644 --- a/arch/nios2/config.mk +++ b/arch/nios2/config.mk @@ -31,2 +31,5 @@ PLATFORM_CPPFLAGS += -DCONFIG_NIOS2 -D__NIOS2__
LDSCRIPT ?= $(SRCTREE)/$(CPUDIR)/u-boot.lds
+LDFLAGS += --gc-sections +PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Hi Thomas,
Will that stop it working with the gcc3-based nios2 nommu toolchain? The version of 'ld' in that toolchain doesn't support the --gc-sections option.