build_macros: Add mechanism to prevent bin generation.
On certain platforms it does not make sense to generate
TF-A binary images. For example a platform could make use of serveral
memory areas, which are non-continuous and the resulting binary
therefore would suffer from the padding-bytes.
Typically these platforms use the ELF image.
This patch introduces a variable DISABLE_BIN_GENERATION, which
can be set to '1' in the platform makefile to prevent the binary
generation.
Signed-off-by: Christoph Müllner <christophm30@gmail.com>
Change-Id: I62948e88bab685bb055fe6167d9660d14e604462
diff --git a/make_helpers/build_macros.mk b/make_helpers/build_macros.mk
index 5d33954..2d41b2d 100644
--- a/make_helpers/build_macros.mk
+++ b/make_helpers/build_macros.mk
@@ -438,6 +438,11 @@
--script $(LINKERFILE) $(BUILD_DIR)/build_message.o \
$(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS)
endif
+ifeq ($(DISABLE_BIN_GENERATION),1)
+ @${ECHO_BLANK_LINE}
+ @echo "Built $$@ successfully"
+ @${ECHO_BLANK_LINE}
+endif
$(DUMP): $(ELF)
$${ECHO} " OD $$@"
@@ -451,7 +456,11 @@
@${ECHO_BLANK_LINE}
.PHONY: bl$(1)
+ifeq ($(DISABLE_BIN_GENERATION),1)
+bl$(1): $(ELF) $(DUMP)
+else
bl$(1): $(BIN) $(DUMP)
+endif
all: bl$(1)
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index be84f77..dc797ed 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -62,6 +62,9 @@
# Build platform
DEFAULT_PLAT := fvp
+# Disable the generation of the binary image (ELF only).
+DISABLE_BIN_GENERATION := 0
+
# Enable capability to disable authentication dynamically. Only meant for
# development platforms.
DYN_DISABLE_AUTH := 0