[coreboot-gerrit] [XS] Change in coreboot[main]: arch/arm: Fix building with LTO

[Nico Huber (Code Review)]

Nico Huber has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84005?usp=email )

Change subject: arch/arm: Fix building with LTO
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arch/arm: Fix building with LTO

With LTO clang cannot find the aliased symbols.

Change-Id: I3d89c093cee2636e648987a06afb0d325b1d96ff
Signed-off-by: Arthur Heymans 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84005
Tested-by: build bot (Jenkins) 
Reviewed-by: Nico Huber 
---
M src/arch/arm/Makefile.mk
1 file changed, 4 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Nico Huber: Looks good to me, approved

diff --git a/src/arch/arm/Makefile.mk b/src/arch/arm/Makefile.mk
index 3f8232f..ef87dcf 100644
--- a/src/arch/arm/Makefile.mk
+++ b/src/arch/arm/Makefile.mk
@@ -19,6 +19,10 @@
    @printf "    CC         $(subst $(obj)/,,$(@))\n"
    $(CC_arm) -I. $(CPPFLAGS_arm) -c -o $@ $< -marm

+# Clang LTO does not like the aliasing in here.
+TARGETS := decompressor bootblock verstage romstage ramstage rmodules_arm
+$(foreach target,$(TARGETS),$(eval $(call src-to-obj,$(target),$(dir)/eabi_compat.c): CFLAGS_$(target) += -fno-lto))
+
 endif # CONFIG_ARCH_ARM

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