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