From 4796a1eacc6a5ccb623e7d2e46a5196f8335e496 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Fri, 11 Aug 2023 11:19:49 +0300 Subject: [PATCH] Allow access to low addresses with gcc 12 gcc 12 added a warning that triggers on access to low addresses. Add a compile option that allows access to lower addresses. Add the 'cc_option' macro to avoid the compile option when the compiler does not support it. This fixes build with TF-A. TF-A added a similar fix in commit dea23e245fb89. See some more details in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523 Upstream: https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/42 Signed-off-by: Baruch Siach --- Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Makefile b/Makefile index 3f0dd89a7381..045284c30cbc 100644 --- a/Makefile +++ b/Makefile @@ -108,6 +108,10 @@ MV_DDR_VER_CSRC = mv_ddr_build_message.c # create mv_ddr build message and version string source file $(shell $(MV_DDR_ROOT)/scripts/localversion.sh $(MV_DDR_ROOT) $(MV_DDR_VER_CSRC) 2> /dev/null) +define cc_option + $(shell if $(CC) $(1) -c -x c /dev/null -o /dev/null >/dev/null 2>&1; then echo $(1); fi ) +endef + # ****************** # U-BOOT SPL SUPPORT # ****************** @@ -331,6 +335,7 @@ OBJ_DIR ?= $(MV_DDR_ROOT) CFLAGS = -DMV_DDR_ATF -DCONFIG_DDR4 CFLAGS += -Wall -Werror -Os -ffreestanding -mlittle-endian -g -gdwarf-2 -nostdinc CFLAGS += -march=armv8-a -fpie +CFLAGS += $(call cc_option, --param=min-pagesize=0) # PLATFORM is set in ble/ble.mk ifneq ($(findstring a80x0,$(PLATFORM)),) -- 2.40.1