ARM: make LTO available

Make LTO available for ARM architecture.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/Kconfig b/arch/Kconfig
index 8fd39e3..49813a4 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -33,6 +33,7 @@ config ARC
 
 config ARM
        bool "ARM architecture"
+       select ARCH_SUPPORTS_LTO
        select CREATE_ARCH_SYMLINK
        select HAVE_PRIVATE_LIBGCC if !ARM64
        select SUPPORT_OF_CONTROL

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 61bef1d..7f66332 100644 (file)
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -45,6 +45,8 @@ obj-$(CONFIG_SEMIHOSTING) += semihosting.o
 
 obj-y  += bdinfo.o
 obj-y  += sections.o
+CFLAGS_REMOVE_sections.o := $(LTO_CFLAGS)
+
 obj-y  += stack.o
 ifdef CONFIG_CPU_V7M
 obj-y  += interrupts_m.o