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1## Copyright 2008, The Android Open Source Project
2##
3## Licensed under the Apache License, Version 2.0 (the "License");
4## you may not use this file except in compliance with the License.
5## You may obtain a copy of the License at
6##
7##     http://www.apache.org/licenses/LICENSE-2.0
8##
9## Unless required by applicable law or agreed to in writing, software
10## distributed under the License is distributed on an "AS IS" BASIS,
11## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12## See the License for the specific language governing permissions and
13## limitations under the License.
14##
15
16
17LOCAL_PATH := $(call my-dir)
18
19ifeq ($(TARGET_ARCH),x86)
20
21include $(CLEAR_VARS)
22
23############################
24# First, build stage1
25
26LOCAL_SRC_FILES := \
27        stage1/stage1.S
28
29LOCAL_CFLAGS := \
30        -Wall -Wmissing-prototypes -Wunused -Wshadow \
31        -Wpointer-arith -falign-jumps=1 -falign-loops=1 \
32        -falign-functions=1 -Wundef
33LOCAL_CFLAGS += -m32 -O2 -fno-builtin -nostdinc
34
35LOCAL_C_INCLUDES := $(LOCAL_PATH)/stage1
36
37LOCAL_MODULE := grub_stage1
38LOCAL_MODULE_TAGS := eng
39LOCAL_MODULE_PATH := $(PRODUCT_OUT)/grub
40
41LOCAL_SYSTEM_SHARED_LIBRARIES :=
42LOCAL_SHARED_LIBRARIES :=
43
44include $(BUILD_RAW_EXECUTABLE)
45
46$(LOCAL_BUILT_MODULE) : PRIVATE_LINK_SCRIPT :=
47$(LOCAL_BUILT_MODULE) : PRIVATE_LIBS :=
48$(LOCAL_BUILT_MODULE) : PRIVATE_RAW_EXECUTABLE_LDFLAGS := \
49	-nostdlib -N -Ttext=7C00 -melf_i386
50
51###################################################################
52###################################################################
53## For stage2, we have to do it in several parts.
54##   1) Build pre_stage2 that contains all the source.
55##   2) Get the size of pre_stage2 from (1) and generate a header file.
56##   3) Build the "start sector" with the header file.
57##   4) concatenate start + pre_stage2 into stage2.
58###################################################################
59###################################################################
60
61###################################
62## So, build pre_stage2 target  (1)
63
64include $(CLEAR_VARS)
65
66LOCAL_SRC_FILES := \
67	stage2/asm.S \
68	stage2/bios.c \
69	stage2/boot.c \
70	stage2/builtins.c \
71	stage2/char_io.c \
72	stage2/cmdline.c \
73	stage2/common.c \
74	stage2/console.c \
75	stage2/disk_io.c \
76	stage2/fsys_ext2fs.c \
77	stage2/gunzip.c \
78	stage2/serial.c \
79	stage2/smp-imps.c \
80	stage2/stage2.c \
81	stage2/terminfo.c \
82	stage2/tparm.c \
83	stage2/preset_menu.c
84
85LOCAL_CFLAGS := \
86	-Wall -Wmissing-prototypes -Wunused -Wshadow \
87	-Wpointer-arith -falign-jumps=1 -falign-loops=1 \
88	-falign-functions=1 -Wundef
89
90LOCAL_CFLAGS += -m32 -Os -fno-builtin -nostdinc
91
92LOCAL_CFLAGS += -DHAVE_CONFIG_H -DFSYS_EXT2FS=1 -DSUPPORT_SERIAL=1
93
94LOCAL_CFLAGS += -DPRESET_MENU_EXTERNAL
95
96LOCAL_C_INCLUDES := \
97	$(LOCAL_PATH)/stage1 \
98	$(LOCAL_PATH)/stage2
99
100LOCAL_MODULE := grub_pre_stage2
101LOCAL_MODULE_TAGS := eng
102LOCAL_MODULE_PATH := $(PRODUCT_OUT)/grub
103
104LOCAL_SYSTEM_SHARED_LIBRARIES :=
105LOCAL_SHARED_LIBRARIES :=
106
107include $(BUILD_RAW_EXECUTABLE)
108
109$(LOCAL_BUILT_MODULE) : PRIVATE_LINK_SCRIPT :=
110$(LOCAL_BUILT_MODULE) : PRIVATE_LIBS :=
111$(LOCAL_BUILT_MODULE) : PRIVATE_RAW_EXECUTABLE_LDFLAGS := \
112	-nostdlib -N -Ttext=8200 -melf_i386
113
114#############################################
115## Generate the stage2 start file  (2) + (3)
116
117include $(CLEAR_VARS)
118
119LOCAL_SRC_FILES := \
120	stage2/start.S
121
122LOCAL_CFLAGS := \
123	-Wall -Wmissing-prototypes -Wunused -Wshadow \
124	-Wpointer-arith -falign-jumps=1 -falign-loops=1 \
125	-falign-functions=1 -Wundef
126
127LOCAL_CFLAGS += -m32 -Os -fno-builtin -nostdinc
128
129LOCAL_CFLAGS += -DHAVE_CONFIG_H -DFSYS_EXT2FS=1 -DSUPPORT_SERIAL=1
130
131LOCAL_C_INCLUDES := \
132	$(LOCAL_PATH)/stage1 \
133	$(LOCAL_PATH)/stage2
134
135LOCAL_SYSTEM_SHARED_LIBRARIES :=
136LOCAL_SHARED_LIBRARIES :=
137
138LOCAL_MODULE := grub_start_stage2
139LOCAL_MODULE_TAGS := eng
140LOCAL_MODULE_PATH := $(PRODUCT_OUT)/grub
141
142# <generate the header file>
143LOCAL_MODULE_CLASS := EXECUTABLES
144intermediates := $(call local-intermediates-dir)
145
146STAGE2_SIZE_OBJ := $(intermediates)/stage2_size.h
147$(STAGE2_SIZE_OBJ) : PRIVATE_CUSTOM_TOOL = \
148	echo "\#define STAGE2_SIZE `stat -c '%s' $<`" > $@
149
150LOCAL_GENERATED_SOURCES := $(STAGE2_SIZE_OBJ)
151$(STAGE2_SIZE_OBJ): $(PRODUCT_OUT)/grub/grub_pre_stage2
152	@echo "target Generating: $@"
153	$(transform-generated-source)
154# </generate the header file>
155
156include $(BUILD_RAW_EXECUTABLE)
157
158$(all_objects): $(STAGE2_SIZE_OBJ)
159$(LOCAL_BUILT_MODULE) : PRIVATE_LINK_SCRIPT :=
160$(LOCAL_BUILT_MODULE) : PRIVATE_LIBS :=
161$(LOCAL_BUILT_MODULE) : PRIVATE_RAW_EXECUTABLE_LDFLAGS := \
162	-nostdlib -N -Ttext=8200 -melf_i386
163
164#############################################
165## Generate the real deal stage2  (4)
166
167include $(CLEAR_VARS)
168
169my_files := $(PRODUCT_OUT)/grub/grub_start_stage2 \
170	$(PRODUCT_OUT)/grub/grub_pre_stage2
171
172file := $(PRODUCT_OUT)/grub/grub_stage2
173$(file) : $(my_files)
174	@echo "target Creating: $@"
175	$(hide) cat $^ > $@
176#ALL_PREBUILT += $(file)
177
178
179#############################################################################
180## Generate a full stage1+stage2 bin that we can just drop @ offset 0 on disk
181include $(CLEAR_VARS)
182grub_stage1 := $(PRODUCT_OUT)/grub/grub_stage1
183grub_stage2 := $(PRODUCT_OUT)/grub/grub_stage2
184grub_full := $(PRODUCT_OUT)/grub/grub.bin
185
186$(grub_full) : $(grub_stage1) $(grub_stage2)
187	@echo "target Generating GRUB bin: $@"
188	$(hide) rm -f $@
189	$(hide) dd if=$(grub_stage1) of=$@ bs=512 count=1 2>/dev/null
190	$(hide) dd if=$(grub_stage2) of=$@ bs=512 seek=1 2>/dev/null
191#ALL_PREBUILT += $(grub_full)
192
193endif # x86
194