From a27c8ea7f7fc269c2bf40468568a387d9e8db976 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Wed, 5 Apr 2023 19:48:54 -0400 Subject: [PATCH] arm: Centralize fixed register logic When building for ARM64, we need to pass -ffixed-x18 and otherwise pass -ffixed-r9. Rather than having this logic in two places, we can do this once in arch/arm/config.mk. Further, while gcc will ignore being passed both -ffixed-r9 and -ffixed-x18 and simply use -ffixed-x18, clang will note that -ffixed-r9 is not used. Remove this duplication to also remove the warning. Signed-off-by: Tom Rini Reviewed-by: Simon Glass --- arch/arm/config.mk | 10 ++++++++-- arch/arm/cpu/armv8/config.mk | 1 - 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/arch/arm/config.mk b/arch/arm/config.mk index bf781f1026..5530d02b66 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -3,7 +3,13 @@ # (C) Copyright 2000-2002 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. -CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections \ +ifeq ($(CONFIG_ARM64),y) +FIXED_REG := -ffixed-x18 +else +FIXED_REG := -ffixed-r9 +endif + +CFLAGS_NON_EFI := -fno-pic $(FIXED_REG) -ffunction-sections -fdata-sections \ -fstack-protector-strong CFLAGS_EFI := -fpic -fshort-wchar @@ -15,7 +21,7 @@ ifneq ($(LTO_ENABLE),y) PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections endif -PLATFORM_RELFLAGS += -fno-common -ffixed-r9 +PLATFORM_RELFLAGS += -fno-common $(FIXED_REG) PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ $(call cc-option,-mgeneral-regs-only) \ $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) diff --git a/arch/arm/cpu/armv8/config.mk b/arch/arm/cpu/armv8/config.mk index ca06ed3d4f..4d74b2a533 100644 --- a/arch/arm/cpu/armv8/config.mk +++ b/arch/arm/cpu/armv8/config.mk @@ -2,7 +2,6 @@ # # (C) Copyright 2002 # Gary Jennejohn, DENX Software Engineering, -PLATFORM_RELFLAGS += -fno-common -ffixed-x18 PLATFORM_RELFLAGS += $(call cc-option,-mbranch-protection=none) PF_NO_UNALIGNED := $(call cc-option, -mstrict-align) -- 2.39.5