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87 lines
2.8 KiB
Diff
87 lines
2.8 KiB
Diff
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From b02de4cb14ee9c2bfff53d36f0b7ec6a2065bc94 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Christoph=20M=C3=BCllner?= <christophm30@gmail.com>
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Date: Wed, 24 Apr 2019 09:45:30 +0200
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Subject: [PATCH 1/2] build_macros: Add mechanism to prevent bin generation.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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On certain platforms it does not make sense to generate
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TF-A binary images. For example a platform could make use of serveral
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memory areas, which are non-continuous and the resulting binary
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therefore would suffer from the padding-bytes.
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Typically these platforms use the ELF image.
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This patch introduces a variable DISABLE_BIN_GENERATION, which
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can be set to '1' in the platform makefile to prevent the binary
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generation.
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Signed-off-by: Christoph Müllner <christophm30@gmail.com>
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Change-Id: I62948e88bab685bb055fe6167d9660d14e604462
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---
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docs/user-guide.rst | 4 ++++
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make_helpers/build_macros.mk | 9 +++++++++
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make_helpers/defaults.mk | 3 +++
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3 files changed, 16 insertions(+)
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diff --git a/docs/user-guide.rst b/docs/user-guide.rst
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index 0848769b3..19919f112 100644
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--- a/docs/user-guide.rst
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+++ b/docs/user-guide.rst
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@@ -369,6 +369,10 @@ Common build options
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- ``DEBUG``: Chooses between a debug and release build. It can take either 0
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(release) or 1 (debug) as values. 0 is the default.
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+- ``DISABLE_BIN_GENERATION``: Boolean option to disable the generation
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+ of the binary image. If set to 1, then only the ELF image is built.
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+ 0 is the default.
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+
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- ``DYN_DISABLE_AUTH``: Provides the capability to dynamically disable Trusted
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Board Boot authentication at runtime. This option is meant to be enabled only
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for development platforms. ``TRUSTED_BOARD_BOOT`` flag must be set if this
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diff --git a/make_helpers/build_macros.mk b/make_helpers/build_macros.mk
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index 5d33954ad..2d41b2db1 100644
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--- a/make_helpers/build_macros.mk
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+++ b/make_helpers/build_macros.mk
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@@ -438,6 +438,11 @@ else
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--script $(LINKERFILE) $(BUILD_DIR)/build_message.o \
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$(OBJS) $(LDPATHS) $(LIBWRAPPER) $(LDLIBS) $(BL_LIBS)
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endif
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+ifeq ($(DISABLE_BIN_GENERATION),1)
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+ @${ECHO_BLANK_LINE}
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+ @echo "Built $$@ successfully"
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+ @${ECHO_BLANK_LINE}
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+endif
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$(DUMP): $(ELF)
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$${ECHO} " OD $$@"
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@@ -451,7 +456,11 @@ $(BIN): $(ELF)
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@${ECHO_BLANK_LINE}
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.PHONY: bl$(1)
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+ifeq ($(DISABLE_BIN_GENERATION),1)
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+bl$(1): $(ELF) $(DUMP)
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+else
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bl$(1): $(BIN) $(DUMP)
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+endif
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all: bl$(1)
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diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
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index be84f7791..dc797ed1f 100644
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--- a/make_helpers/defaults.mk
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+++ b/make_helpers/defaults.mk
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@@ -62,6 +62,9 @@ DEBUG := 0
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# Build platform
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DEFAULT_PLAT := fvp
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+# Disable the generation of the binary image (ELF only).
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+DISABLE_BIN_GENERATION := 0
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+
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# Enable capability to disable authentication dynamically. Only meant for
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# development platforms.
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DYN_DISABLE_AUTH := 0
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--
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2.20.1
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