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Split CONFIG_CC_OPTIMIZE_FOR_SIZE into two configs

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This adds a separate CONFIG_CC_OPTIMIZE_FOR_SPEED option in a choice,
in preparation for adding another optimization option. Also convert SH's
makefile to use this new option.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Sean Anderson 2022-02-22 12:19:24 -05:00 committed by Tom Rini
parent e47bbf7e0e
commit f38cb2aca7
3 changed files with 18 additions and 5 deletions
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17
Kconfig
View File

@ -72,15 +72,26 @@ config CLANG_VERSION
int int
default $(shell,$(srctree)/scripts/clang-version.sh $(CC)) default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
choice
prompt "Optimization level"
default CC_OPTIMIZE_FOR_SIZE
config CC_OPTIMIZE_FOR_SIZE config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size" bool "Optimize for size"
default y
help help
Enabling this option will pass "-Os" instead of "-O2" to gcc Enabling this option will pass "-Os" to gcc, resulting in a smaller
resulting in a smaller U-Boot image. U-Boot image.
This option is enabled by default for U-Boot. This option is enabled by default for U-Boot.
config CC_OPTIMIZE_FOR_SPEED
bool "Optimize for speed"
help
Enabling this option will pass "-O2" to gcc, resulting in a faster
U-Boot image.
endchoice
config OPTIMIZE_INLINING config OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline' in full U-Boot" bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
help help

4
Makefile
View File

@ -683,7 +683,9 @@ endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os KBUILD_CFLAGS += -Os
else endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED
KBUILD_CFLAGS += -O2 KBUILD_CFLAGS += -O2
endif endif

2
arch/sh/lib/Makefile
View File

@ -12,7 +12,7 @@ obj-$(CONFIG_CMD_SH_ZIMAGEBOOT) += zimageboot.o
udivsi3-y := udivsi3_i4i-Os.o udivsi3-y := udivsi3_i4i-Os.o
ifneq ($(CONFIG_CC_OPTIMIZE_FOR_SIZE),y) ifeq ($(CONFIG_CC_OPTIMIZE_FOR_SPEED),y)
udivsi3-$(CONFIG_CPU_SH4) := udivsi3_i4i.o udivsi3-$(CONFIG_CPU_SH4) := udivsi3_i4i.o
endif endif
udivsi3-y += udivsi3.o udivsi3-y += udivsi3.o