1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
From b02de4cb14ee9c2bfff53d36f0b7ec6a2065bc94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20M=C3=BCllner?= <christophm30@gmail.com>
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 <christophm30@gmail.com>
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
|
