[U-Boot] [PATCH 10/30] riscv: enable -fdata-sections

Lukas Auer lukas.auer at aisec.fraunhofer.de
Fri Oct 19 22:07:23 UTC 2018


Enable the -fdata-sections compiler option for RISC-V. Buildman reports
the binary size decrease from this as 8365.3 bytes.

Signed-off-by: Lukas Auer <lukas.auer at aisec.fraunhofer.de>
---

 arch/riscv/config.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/config.mk b/arch/riscv/config.mk
index 9088b9ef2c..b9487097f6 100644
--- a/arch/riscv/config.mk
+++ b/arch/riscv/config.mk
@@ -27,7 +27,8 @@ CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \
 			      -T $(srctree)/examples/standalone/riscv.lds
 
 PLATFORM_CPPFLAGS	+= -ffixed-gp -fpic
-PLATFORM_RELFLAGS	+= -fno-common -gdwarf-2 -ffunction-sections
+PLATFORM_RELFLAGS	+= -fno-common -gdwarf-2 -ffunction-sections \
+			   -fdata-sections
 LDFLAGS_u-boot		+= --gc-sections -static -pie
 
 EFI_CRT0		:= crt0_riscv_efi.o
-- 
2.17.2



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