On 28 July 2017 at 13:21, Philipp Tomsich <philipp.toms...@theobroma-systems.com> wrote: > TPL builds today don't need to call into firmware or set up the MMU > (if this changes, it should be controlled through a config option > whether to include this or not), but include the needed support code > for this anyway. By moving these unused low-level functions into > seperate function-sections, the linker can garbage-collect the unused > sections. > > Note that (if DM support is enabled), there will be a call to the > cache-flushing code from alloc_priv(...) in drivers/core/device.c. > This then add 52 bytes of binary size (an increase from 20589 to 20641 > bytes) compared to completely removing this code. > > Even for a feature-rich TPL (including DM support as for the RK3368), > this equates to a size difference of significantly more than 10% in > TPL binary size. > > Signed-off-by: Philipp Tomsich <philipp.toms...@theobroma-systems.com> > > --- > > Changes in v3: > - change to use function-sections (instead of disabling at the > Makefile-level for TPL builds) per Tom's suggestion > > Changes in v2: None > > arch/arm/cpu/armv8/Makefile | 2 +- > arch/arm/cpu/armv8/cache.S | 22 ++++++++++++++++++++++ > arch/arm/cpu/armv8/tlb.S | 4 +++- > arch/arm/cpu/armv8/transition.S | 6 ++++++ > 4 files changed, 32 insertions(+), 2 deletions(-) >
Reviewed-by: Simon Glass <s...@chromium.org> > diff --git a/arch/arm/cpu/armv8/Makefile b/arch/arm/cpu/armv8/Makefile > index c447085..64f35f1 100644 > --- a/arch/arm/cpu/armv8/Makefile > +++ b/arch/arm/cpu/armv8/Makefile > @@ -10,11 +10,11 @@ extra-y := start.o > obj-y += cpu.o > obj-y += generic_timer.o > obj-y += cache_v8.o > -obj-y += exceptions.o > obj-y += cache.o > obj-y += tlb.o > obj-y += transition.o > obj-y += fwcall.o > +obj-y += exceptions.o But what is happened here? > obj-y += cpu-dt.o > obj-$(CONFIG_ARM_SMCCC) += smccc-call.o _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
