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[u-boot,v2,36/38] ARM: don't use -ffunction-sections/-fdata-sections with LTO build

Message ID 20210312103429.25895-37-marek.behun@nic.cz
State Superseded
Delegated to: Tom Rini
Headers show
Series U-Boot LTO (Sandbox + Some ARM boards) | expand

Commit Message

Marek Behún March 12, 2021, 10:34 a.m. UTC 
When building with LTO, using -ffunction-sections/-fdata-sections is not
useful anymore.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
---
 arch/arm/config.mk | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/arm/config.mk b/arch/arm/config.mk
index 4153f7e371..2b2c6ad2e5 100644
--- a/arch/arm/config.mk
+++ b/arch/arm/config.mk
@@ -15,8 +15,12 @@  CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections
 CFLAGS_EFI := -fpic -fshort-wchar
 
 LDFLAGS_FINAL += --gc-sections
-PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
-		     -fno-common -ffixed-r9
+
+ifndef CONFIG_LTO
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+endif
+
+PLATFORM_RELFLAGS += -fno-common -ffixed-r9
 PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \
       $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))