[S] Change in coreboot[master]: soc/ti/am335x: Fix building omap header with clang

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70161 )

Change subject: soc/ti/am335x: Fix building omap header with clang
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soc/ti/am335x: Fix building omap header with clang

Clang needs the target and the linker defined explicitly.

Change-Id: Id6ba42b470349a4b138a65b2a037f16a65982ef7
Signed-off-by: Arthur Heymans 
---
M src/soc/ti/am335x/Makefile.inc
1 file changed, 18 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/61/70161/1

diff --git a/src/soc/ti/am335x/Makefile.inc b/src/soc/ti/am335x/Makefile.inc
index e09a0f7..ec70802 100644
--- a/src/soc/ti/am335x/Makefile.inc
+++ b/src/soc/ti/am335x/Makefile.inc
@@ -24,6 +24,10 @@

omap-header-generic-ccopts += -D__COREBOOT_ARM_ARCH__=7

+ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
+CFLAGS_omap-header += -fuse-ld=$(LD_omap-header)
+endif
+
 real-target: $(obj)/MLO

header_ld := $(call src-to-obj,omap-header,$(dir)/header.ld)
@@ -31,9 +35,10 @@
 get_header_size= \
    $(shell echo $$(wc -c < $(objcbfs)/bootblock.bin))

+# This does not work well with clang so explicitly use GCC
 $(obj)/omap-header.bin: $$(omap-header-objs) $(objcbfs)/bootblock.bin
    @printf "    CC         $(subst $(obj)/,,$(@))\n"
-	$(CC_omap-header) -nostdlib -nostartfiles -static -include $(obj)/config.h \
+	$(CC_omap-header) $(CFLAGS_omap-header) -nostdlib -nostartfiles -static -include $(obj)/config.h \
    	-Wl,--defsym,header_load_size=$(strip \
    		$(call get_header_size,$(obj)/coreboot.rom) \
    	) \