hvmloader: suppress GNU ld 2.39 warning about RWX load segments

This aspect is simply meaningless for this component.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>

tools/firmware/hvmloader/Makefile

@@ -20,6 +20,8 @@
 XEN_ROOT = $(CURDIR)/../../..
 include $(XEN_ROOT)/tools/firmware/Rules.mk
 
+ld-option = $(shell if $(LD) -v $(1) >/dev/null 2>&1; then echo y; else echo n; fi)
+
 # SMBIOS spec requires format mm/dd/yyyy
 SMBIOS_REL_DATE ?= $(shell date +%m/%d/%Y)
 
@@ -59,6 +61,10 @@ ROMBIOS_ROM := $(ROMBIOS_DIR)/BIOS-bochs-latest
 ROMS += $(ROMBIOS_ROM) $(STDVGA_ROM) $(CIRRUSVGA_ROM)
 endif
 
+# Suppress the warning about LOAD segments with RWX permissions, as what we
+# build isn't a normal user-mode executable.
+LDFLAGS-$(call ld-option,--warn-rwx-segments) := --no-warn-rwx-segments
+
 .PHONY: all
 all: hvmloader
 
@@ -85,7 +91,7 @@ $(DSDT_FILES): acpi
 build.o: $(DSDT_FILES)
 
 hvmloader: $(OBJS) hvmloader.lds
-	$(LD) $(LDFLAGS_DIRECT) -N -T hvmloader.lds -o $@ $(OBJS)
+	$(LD) $(LDFLAGS_DIRECT) $(LDFLAGS-y) -N -T hvmloader.lds -o $@ $(OBJS)
 
 roms.inc: $(ROMS)
 	echo "/* Autogenerated file. DO NOT EDIT */" > $@.new