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[v2,2/8] riscv: Enable function sections

Message ID 20180419154923.70719-3-agraf@suse.de
State Superseded
Headers show
Series riscv: Enable efi_loader support | expand

Commit Message

Alexander Graf April 19, 2018, 3:49 p.m. UTC 
The linker can remove sections that are never addressed, so it makes a lot
of sense to declare every function as an individual section.

This reduces the output U-Boot code size by ~30kb for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/riscv/config.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/riscv/config.mk b/arch/riscv/config.mk
index 6b681c4286..69f4cf6ce8 100644
--- a/arch/riscv/config.mk
+++ b/arch/riscv/config.mk
@@ -29,5 +29,5 @@  CONFIG_STANDALONE_LOAD_ADDR = 0x00000000 \
 			      -T $(srctree)/examples/standalone/riscv.lds
 
 PLATFORM_CPPFLAGS	+= -ffixed-gp -fpic
-PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -gdwarf-2
+PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -gdwarf-2 -ffunction-sections
 LDFLAGS_u-boot += --gc-sections -static -pie