[S] Change in coreboot[master]: arch/arm64/Makefile.inc: --no-warn-rwx-segments

[Felix Singer (Code Review)]

Felix Singer has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70024 )

Change subject: arch/arm64/Makefile.inc: --no-warn-rwx-segments
......................................................................

arch/arm64/Makefile.inc: --no-warn-rwx-segments

TODO

Change-Id: I56757365559a3f910c59c16df22565d0b9740805
Signed-off-by: Felix Singer 
---
M src/arch/arm64/Makefile.inc
1 file changed, 20 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/24/70024/1

diff --git a/src/arch/arm64/Makefile.inc b/src/arch/arm64/Makefile.inc
index 6b49743..1185577 100644
--- a/src/arch/arm64/Makefile.inc
+++ b/src/arch/arm64/Makefile.inc
@@ -173,6 +173,14 @@
 BL31_CFLAGS := -fno-pic -fno-stack-protector -Wno-deprecated-declarations -Wno-unused-function
 BL31_LDFLAGS := --emit-relocs

+# With binutils 2.39 it is required to build BL31 with the linker flag
+# from below. For backwards compatibility to the current stable
+# toolchain (4.18), check if that flag is supported by the linker.
+# TODO: Remove the check after 4.19 got released.
+ifneq ($(shell "{LD_${TARCH}}" --no-warn-rwx-segments --version >/dev/null 2>&1),)
+	BL31_LDFLAGS += --no-warn-rwx-segments
+endif
+
 BL31 := $(obj)/bl31.elf

$(BL31): $(obj)/build.h