From b02de4cb14ee9c2bfff53d36f0b7ec6a2065bc94 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christoph=20M=C3=BCllner?= Date: Wed, 24 Apr 2019 09:45:30 +0200 Subject: [PATCH 1/2] build_macros: Add mechanism to prevent bin generation. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Change-Id: I62948e88bab685bb055fe6167d9660d14e604462 --- docs/user-guide.rst | 4 ++++ make_helpers/build_macros.mk | 9 +++++++++ make_helpers/defaults.mk | 3 +++ 3 files changed, 16 insertions(+) diff --git a/docs/user-guide.rst b/docs/user-guide.rst index 0848769b3..19919f112 100644 --- a/docs/user-guide.rst +++ b/docs/user-guide.rst @@ -369,6 +369,10 @@ Common build options - ``DEBUG``: Chooses between a debug and release build. It can take either 0 (release) or 1 (debug) as values. 0 is the default. +- ``DISABLE_BIN_GENERATION``: Boolean option to disable the generation + of the binary image. If set to 1, then only the ELF image is built. + 0 is the default. + - ``DYN_DISABLE_AUTH``: Provides the capability to dynamically disable Trusted Board Boot authentication at runtime. This option is meant to be enabled only for development platforms. ``TRUSTED_BOARD_BOOT`` flag must be set if this diff --git a/make_helpers/build_macros.mk b/make_helpers/build_macros.mk index 5d33954ad..2d41b2db1 100644 --- a/make_helpers/build_macros.mk +++ b/make_helpers/build_macros.mk @@ -438,6 +438,11 @@ else --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 @@ $(BIN): $(ELF) @${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 be84f7791..dc797ed1f 100644 --- a/make_helpers/defaults.mk +++ b/make_helpers/defaults.mk @@ -62,6 +62,9 @@ DEBUG := 0 # 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 -- 2.20.1