mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-21 18:39:43 +09:00
d8834a1323
Using optimized versions of memset and memcpy from linux brings a quite
noticeable speed (x2 or better) improvement for these two functions.
Here are some numbers for test done with jadecpu
| HEAD(1)| HEAD(1)| HEAD(2)| HEAD(2)|
| | +patch | | +patch |
---------------------------+--------+--------+--------+--------+
Reset to prompt | 438ms | 330ms | 228ms | 120ms |
| | | | |
TFTP a 3MB img | 4782ms | 3428ms | 3245ms | 2820ms |
| | | | |
FATLOAD USB a 3MB img* | 8515ms | 8510ms | ------ | ------ |
| | | | |
BOOTM LZO img in RAM | 3473ms | 3168ms | 592ms | 592ms |
where CRC is | 615ms | 615ms | 54ms | 54ms |
uncompress | 2460ms | 2462ms | 450ms | 451ms |
final boot_elf | 376ms | 68ms | 65ms | 65ms |
| | | | |
BOOTM LZO img in FLASH | 3207ms | 2902ms | 1050ms | 1050ms |
where CRC is | 600ms | 600ms | 135ms | 135ms |
uncompress | 2209ms | 2211ms | 828ms | 828ms |
| | | | |
Copy 1.4MB from NOR to RAM | 134ms | 72ms | 120ms | 70ms |
(1) No dcache
(2) dcache enabled in board_init
*Does not work when dcache is on
Size impact:
C version:
text data bss dec hex filename
202862 18912 266456 488230 77326 u-boot
ASM version:
text data bss dec hex filename
203798 18912 266288 488998 77626 u-boot
222712 u-boot.bin
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
85 lines
2.2 KiB
Makefile
85 lines
2.2 KiB
Makefile
#
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# (C) Copyright 2002-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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include $(TOPDIR)/config.mk
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LIB = $(obj)lib$(ARCH).o
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LIBGCC = $(obj)libgcc.o
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GLSOBJS += _ashldi3.o
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GLSOBJS += _ashrdi3.o
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GLSOBJS += _divsi3.o
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GLSOBJS += _lshrdi3.o
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GLSOBJS += _modsi3.o
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GLSOBJS += _udivsi3.o
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GLSOBJS += _umodsi3.o
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GLCOBJS += div0.o
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COBJS-y += board.o
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COBJS-y += bootm.o
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COBJS-y += cache.o
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ifndef CONFIG_SYS_NO_CP15_CACHE
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COBJS-y += cache-cp15.o
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endif
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COBJS-y += interrupts.o
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COBJS-y += reset.o
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SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
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SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
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SRCS := $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
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$(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
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OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
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LGOBJS := $(addprefix $(obj),$(GLSOBJS)) \
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$(addprefix $(obj),$(GLCOBJS))
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# Always build libarm.o
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TARGETS := $(LIB)
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# Build private libgcc only when asked for
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ifdef USE_PRIVATE_LIBGCC
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TARGETS += $(LIBGCC)
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endif
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# For EABI conformant tool chains, provide eabi_compat()
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ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
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TARGETS += $(obj)eabi_compat.o
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endif
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all: $(TARGETS)
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$(LIB): $(obj).depend $(OBJS)
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$(call cmd_link_o_target, $(OBJS))
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$(LIBGCC): $(obj).depend $(LGOBJS)
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$(call cmd_link_o_target, $(LGOBJS))
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#########################################################################
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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