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coremark: add various optimization options

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Changes:
- Pass compiler flags through PORT_CFLAGS (previously, it was always compiled with -O2 -lrt)
- Add option to override toolchain and use -O3
- Disable MIPS16 (highly decreases results)
- Enable LTO

Signed-off-by: Aleksander Jan Bajkowski <A.Bajkowski@stud.elka.pw.edu.pl>
This commit is contained in:
Aleksander Jan Bajkowski 2020-07-24 22:40:58 +02:00
parent 502b667505
commit d8793bd5a8
1 changed files with 19 additions and 2 deletions
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21
utils/coremark/Makefile
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@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=coremark
PKG_SOURCE_DATE:=2020-05-28
PKG_SOURCE_VERSION:=7685fd32bd7919581bfff2881a6dac6320581400
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_SOURCE:=$(PKG_NAME)-$(PKG_SOURCE_DATE).tar.gz
PKG_SOURCE_URL:=https://codeload.github.com/eembc/coremark/tar.gz/$(PKG_SOURCE_VERSION)?
@ -21,6 +21,8 @@ PKG_MAINTAINER:=Lim Guo Wei <limguowei@gmail.com>
PKG_LICENSE:=Apache-2.0
PKG_LICENSE_FILES:=LICENSE.md
PKG_USE_MIPS16:=0
include $(INCLUDE_DIR)/package.mk
define Package/coremark
@ -36,12 +38,27 @@ endef
DIR_ARCH:=linux$(if $(CONFIG_ARCH_64BIT),64)
define Package/coremark/config
config COREMARK_OPTIMIZE_O3
bool "Use all optimizations (-O3)"
depends on PACKAGE_coremark
default y
help
This enables additional optmizations using the -O3 compilation flag.
endef
TARGET_CFLAGS += -flto
ifeq ($(CONFIG_COREMARK_OPTIMIZE_O3),y)
TARGET_CFLAGS := $(filter-out -O%,$(TARGET_CFLAGS)) -O3
endif
define Build/Compile
$(SED) 's|EXE = .exe|EXE =|' $(PKG_BUILD_DIR)/$(DIR_ARCH)/core_portme.mak
mkdir $(PKG_BUILD_DIR)/$(ARCH)
$(CP) -r $(PKG_BUILD_DIR)/$(DIR_ARCH)/* $(PKG_BUILD_DIR)/$(ARCH)
$(MAKE) -C $(PKG_BUILD_DIR) PORT_DIR=$(ARCH) $(MAKE_FLAGS) \
compile
PORT_CFLAGS="$(TARGET_CFLAGS)" compile
endef
define Package/coremark/install