| Message ID | 20180125180757.16167-1-abrodkin@synopsys.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | Alexey Brodkin |
| Headers | show |
| Series | [U-Boot] arc: Eliminate unused code and data with GCC's garbage collector | expand |
diff --git a/arch/arc/config.mk b/arch/arc/config.mk index 13676bd0c8e1..a19c188dbcfa 100644 --- a/arch/arc/config.mk +++ b/arch/arc/config.mk @@ -51,9 +51,10 @@ PLATFORM_CPPFLAGS += -mcpu=archs endif PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -gdwarf-2 +PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections # Needed for relocation -LDFLAGS_FINAL += -pie +LDFLAGS_FINAL += -pie --gc-sections # Load address for standalone apps CONFIG_STANDALONE_LOAD_ADDR ?= 0x82000000
Finally GCC's garbage collector works on ARC so let's use it. That's what I may see for HSDK: Before: text data bss dec hex filename 290153 10068 222616 522837 7fa55 u-boot After: text data bss dec hex filename 261999 9460 222360 493819 788fb u-boot Overall ~5% of memory footprint saved. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> --- arch/arc/config.mk | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)