[RFC PATCH u-boot 07/12] arch: sandbox: make LTO available

[Marek Behún]

Make LTO available for sandbox architecture.

Signed-off-by: Marek Behún <marek.behun at nic.cz>
---
 arch/Kconfig           | 1 +
 arch/sandbox/config.mk | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index 27843cd79c..a6dab3e56d 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -101,6 +101,7 @@ config RISCV
 
 config SANDBOX
 	bool "Sandbox"
+	select ARCH_SUPPORTS_LTO
 	select BOARD_LATE_INIT
 	select BZIP2
 	select CMD_POWEROFF
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index ebbb094744..d9c430794e 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -16,11 +16,11 @@ PLATFORM_LIBS += $(shell $(SDL_CONFIG) --libs)
 PLATFORM_CPPFLAGS += $(shell $(SDL_CONFIG) --cflags)
 endif
 
-cmd_u-boot__ = $(CC) -o $@ -Wl,-T u-boot.lds $(u-boot-init) \
+cmd_u-boot__ = $(CC) $(LTO_FINAL_CFLAGS) -o $@ -Wl,-T u-boot.lds $(u-boot-init) \
 	-Wl,--whole-archive $(u-boot-main) -Wl,--no-whole-archive \
 	$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map
 
-cmd_u-boot-spl = (cd $(obj) && $(CC) -o $(SPL_BIN) -Wl,-T u-boot-spl.lds \
+cmd_u-boot-spl = (cd $(obj) && $(CC) $(LTO_FINAL_CFLAGS) -o $(SPL_BIN) -Wl,-T u-boot-spl.lds \
 	$(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
 	-Wl,--whole-archive $(patsubst $(obj)/%,%,$(u-boot-spl-main)) -Wl,--no-whole-archive \
 	-Wl,--start-group $(patsubst $(obj)/%,%,$(u-boot-spl-platdata)) -Wl,--end-group \
-- 
2.26.2