security/vboot: build vboot_fw20.a per stage

When used more widely across the tree, we don't want to have
to worry if all its users are on the same architecture
(eg. aarch32 vs aarch64), so just build their own library for
each stage.

Change-Id: Ib6807ff73c2713f3b23f43055325b2c40ff1a17d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/29253
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

1 files changed, 23 insertions, 28 deletions

diff --git a/src/security/vboot/Makefile.inc b/src/security/vboot/Makefile.inc
index 781aa5ebd0..c9dd39f3f4 100644
--- a/src/security/vboot/Makefile.inc
+++ b/src/security/vboot/Makefile.inc
@@ -80,44 +80,39 @@ postcar-y += common.c
 
 romstage-$(CONFIG_FSP2_0_USES_TPM_MRC_HASH) += mrc_cache_hash_tpm.c
 
-ifeq ($(CONFIG_VBOOT_SEPARATE_VERSTAGE),y)
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-verstage-y))
-else
-ifeq ($(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK),y)
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-bootblock-y))
-else
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-romstage-y))
-endif
-endif # CONFIG_VBOOT_SEPARATE_VERSTAGE
-
-VB2_LIB = $(obj)/external/vboot_reference/vboot_fw20.a
-VBOOT_CFLAGS += $(patsubst -I%,-I$(top)/%,\
-		$(patsubst $(src)/%.h,$(top)/$(src)/%.h,\
-		$(filter-out -I$(obj), $(CPPFLAGS_verstage))))
-VBOOT_CFLAGS += $(CFLAGS_verstage)
-VBOOT_CFLAGS += $(verstage-c-ccopts)
-VBOOT_CFLAGS += -I$(abspath $(obj)) -Wno-missing-prototypes
-VBOOT_CFLAGS += -DVBOOT_DEBUG
 
-$(VB2_LIB): $(obj)/config.h
+# call with $1 = stage name to create rules for building the library
+# for the stage and adding it to the stage's set of object files.
+define vboot-for-stage
+VB2_LIB_$(1) = $(obj)/external/vboot_reference-$(1)/vboot_fw20.a
+VBOOT_CFLAGS_$(1) += $$(patsubst -I%,-I$(top)/%,\
+		$$(patsubst $(src)/%.h,$(top)/$(src)/%.h,\
+		$$(filter-out -I$(obj), $$(CPPFLAGS_$(1)))))
+VBOOT_CFLAGS_$(1) += $$(CFLAGS_$(1))
+VBOOT_CFLAGS_$(1) += $$($(1)-c-ccopts)
+VBOOT_CFLAGS_$(1) += -I$(abspath $(obj)) -Wno-missing-prototypes
+VBOOT_CFLAGS_$(1) += -DVBOOT_DEBUG
+
+$$(VB2_LIB_$(1)): $(obj)/config.h
 	printf "    MAKE       $(subst $(obj)/,,$(@))\n"
-	+FIRMWARE_ARCH=$(VB_FIRMWARE_ARCH) \
-	CC="$(CC_verstage)" \
-	CFLAGS="$(VBOOT_CFLAGS)" VBOOT2="y" \
+	+FIRMWARE_ARCH=$$(ARCHDIR-$$(ARCH-$(1)-y)) \
+	CC="$$(CC_$(1))" \
+	CFLAGS="$$(VBOOT_CFLAGS_$(1))" VBOOT2="y" \
 	$(MAKE) -C $(VBOOT_SOURCE) \
-		BUILD=$(abspath $(dir $(VB2_LIB))) \
+		BUILD=$$(abspath $$(dir $$(VB2_LIB_$(1)))) \
 		V=$(V) \
 		fwlib20
 
-verstage-srcs += $(VB2_LIB)
+$(1)-srcs += $$(VB2_LIB_$(1))
+
+endef # vboot-for-stage
+
+$(eval $(call vboot-for-stage,verstage))
 
 ifeq ($(CONFIG_VBOOT_SEPARATE_VERSTAGE),y)
 
-# This works under the assumption that romstage and verstage use the same
-# architecture and thus CC_verstage is the same as CC_romstage. If this is not
-# true, VB2_LIB needs to ensure that correct CC is being used.
 ifeq ($(CONFIG_VBOOT_HAS_REC_HASH_SPACE),y)
-romstage-srcs += $(VB2_LIB)
+$(eval $(call vboot-for-stage,romstage))
 endif
 
 cbfs-files-$(CONFIG_VBOOT_SEPARATE_VERSTAGE) += $(CONFIG_CBFS_PREFIX)/verstage