respect LDFLAGS settings

Libraries go into $LDLIBS while linker flags go into $LDFLAGS.

Also make sure the utility subdir respects the env $LDFLAGS so that
we can do things like `make LDFLAGS=-static` and get static binaries.

BUG=None
TEST=`emerge vboot_reference` still works
TEST=`emerge-arm-generic vboot_reference` still works

Change-Id: I989a21bc559bc6d471bc33c057c708bda2eda67e
Reviewed-on: https://gerrit.chromium.org/gerrit/24728
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/cgpt/Makefile b/cgpt/Makefile
index ae9aac1..546656d 100644
--- a/cgpt/Makefile
+++ b/cgpt/Makefile
@@ -2,11 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-LDFLAGS += -luuid -static
 BUILD_ROOT := ${BUILD}/cgpt
 
 INCLUDES = -I$(FWDIR)/lib/cgptlib/include -I$(FWDIR)/include
 LIBS = ${HOSTLIB}
+LDLIBS += -luuid
+LDFLAGS += -static
 
 DESTDIR ?= /usr/bin
 
@@ -61,7 +62,7 @@
 	ar qc $@ $^
 
 $(PROGNAME): $(ALL_OBJS) $(LIBS)
-	$(CC) -o $(PROGNAME) $(CFLAGS) $^ $(LDFLAGS)
+	$(CC) -o $(PROGNAME) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS)
 
 install: $(PROGNAME)
 	mkdir -p $(DESTDIR)
diff --git a/utility/Makefile b/utility/Makefile
index b99126b..8191881 100644
--- a/utility/Makefile
+++ b/utility/Makefile
@@ -52,14 +52,15 @@
 all: $(TARGET_BINS) $(DUMPKERNELCONFIGLIB)
 
 ${BUILD_ROOT}/crossystem: crossystem_main.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS)
 
 ${BUILD_ROOT}/dumpRSAPublicKey: dumpRSAPublicKey.c
-	$(CC) $(CFLAGS) $< -o $@ $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/dump_kernel_config: dump_kernel_config_main.c \
                                   $(DUMPKERNELCONFIGLIB)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(DUMPKERNELCONFIGLIB) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ \
+		$(LIBS) $(DUMPKERNELCONFIGLIB) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/dump_kernel_config.o: dump_kernel_config.c
 	$(CC) $(CFLAGS) -c $< -o $@
@@ -69,7 +70,7 @@
 	ar qc $@ $^
 
 ${BUILD_ROOT}/gbb_utility: gbb_utility.cc
-	$(CXX) -DWITH_UTIL_MAIN $(CFLAGS) $< -o $@
+	$(CXX) -DWITH_UTIL_MAIN $(CFLAGS) $(LDFLAGS) $< -o $@
 
 ${BUILD_ROOT}/bmpblk_utility.o: bmpblk_utility.cc
 	$(CXX) -DWITH_UTIL_MAIN $(CFLAGS) -c $< -o $@
@@ -87,13 +88,13 @@
 	$(CC) $(CFLAGS) -c $< -o $@
 
 ${BUILD_ROOT}/eficompress: eficompress.c
-	$(CC) $(CFLAGS) -DSTANDALONE $< -o $@
+	$(CC) $(CFLAGS) -DSTANDALONE $(LDFLAGS) $< -o $@
 
 ${BUILD_ROOT}/efidecompress.o: efidecompress.c
 	$(CC) $(CFLAGS) -c $< -o $@
 
 ${BUILD_ROOT}/efidecompress: efidecompress.c
-	$(CC) $(CFLAGS) -DSTANDALONE $< -o $@
+	$(CC) $(CFLAGS) -DSTANDALONE $(LDFLAGS) $< -o $@
 
 ${BUILD_ROOT}/bmpblk_utility: ${BUILD_ROOT}/bmpblk_utility.o \
 				${BUILD_ROOT}/bmpblk_util.o \
@@ -104,50 +105,50 @@
 
 ${BUILD_ROOT}/bmpblk_font: ${BUILD_ROOT}/bmpblk_font.o \
 				${BUILD_ROOT}/image_types.o
-	$(CC) $(CFLAGS) $^ -o $@
+	$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@
 
 # TODO: rewrite load_firmware_test to support new wrapper API
 #${BUILD_ROOT}/load_firmware_test: load_firmware_test.c $(LIBS)
-#	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+#	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/load_kernel_test: load_kernel_test.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/pad_digest_utility: pad_digest_utility.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/signature_digest_utility: signature_digest_utility.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/tlcl_generator: tlcl_generator.c
-	$(HOSTCC) $(CFLAGS) -fpack-struct $< -o $@
+	$(HOSTCC) $(CFLAGS) -fpack-struct $(LDFLAGS) $< -o $@
 
 ${BUILD_ROOT}/vbutil_ec: vbutil_ec.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/vbutil_firmware: vbutil_firmware.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/vbutil_kernel: vbutil_kernel.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/vbutil_key: vbutil_key.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/vbutil_keyblock: vbutil_keyblock.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/verify_data: verify_data.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/sign_image: sign_image.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/tpm_init_temp_fix: tpm_init_temp_fix.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS)
 
 ${BUILD_ROOT}/tpm_set_readsrkpub: tpm_set_readsrkpub.c
-	$(CC) $(CFLAGS) $< -o $@ -ltspi
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ -ltspi
 
 ${BUILD_ROOT}/dev_make_keypair: dev_make_keypair
 	cp -f $< $@
@@ -162,7 +163,7 @@
 	chmod +x $@
 
 ${BUILD_ROOT}/tpmc: tpmc.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS)
 
 ${BUILD_ROOT}/mount-helpers.o: mount-helpers.c mount-helpers.h mount-encrypted.h
 	$(CC) -Wall -Werror -O2 -D_FORTIFY_SOURCE=2 -fstack-protector \
@@ -177,14 +178,15 @@
 		$(shell $(PKG_CONFIG) --cflags glib-2.0 openssl) \
 		-I$(FWDIR)/include \
 		-I$(HOSTDIR)/include \
+		$(LDFLAGS) \
 		$< -o $@ $(shell $(PKG_CONFIG) --libs glib-2.0 openssl) \
 		${BUILD_ROOT}/mount-helpers.o $(LIBS)
 
 ${BUILD_ROOT}/dev_sign_file: dev_sign_file.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS) $(CRYPTO_LIBS)
 
 ${BUILD_ROOT}/dump_fmap: dump_fmap.c $(LIBS)
-	$(CC) $(CFLAGS) $< -o $@ $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ $(LIBS)
 
 install: $(TARGET_BINS)
 	mkdir -p $(DESTDIR)