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1 | #Copyright (C) 2011 by Sagar G V |
2 | # | |
3 | #Permission is hereby granted, free of charge, to any person obtaining a copy | |
4 | #of this software and associated documentation files (the "Software"), to deal | |
5 | #in the Software without restriction, including without limitation the rights | |
6 | #to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
7 | #copies of the Software, and to permit persons to whom the Software is | |
8 | #furnished to do so, subject to the following conditions: | |
9 | # | |
10 | #The above copyright notice and this permission notice shall be included in | |
11 | #all copies or substantial portions of the Software. | |
12 | # | |
13 | #THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
14 | #IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
15 | #FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
16 | #AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
17 | #LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
18 | #OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
19 | #THE SOFTWARE. | |
20 | # | |
21 | # Updates: | |
22 | # Arthur Wolf & Adam Green in 2011 - Updated to work with mbed. | |
23 | ############################################################################### | |
24 | # USAGE: | |
25 | # Variables that must be defined in including makefile. | |
26 | # PROJECT: Name to be given to the output binary for this project. | |
27 | # SRC: The root directory for the sources of your project. | |
28 | # GCC4MED_DIR: The root directory for where the gcc4mbed sources are located | |
29 | # in your project. This should point to the parent directory | |
30 | # of the build directory which contains this gcc4mbed.mk file. | |
31 | # LIBS_PREFIX: List of library/object files to prepend to mbed.ar capi.ar libs. | |
32 | # LIBS_SUFFIX: List of library/object files to append to mbed.ar capi.ar libs. | |
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33 | # GCC4MBED_DELAYED_STDIO_INIT: Set to non-zero value to have intialization of |
34 | # stdin/stdout/stderr delayed which will | |
35 | # shrink the size of the resulting binary if | |
36 | # APIs like printf(), scanf(), etc. aren't used. | |
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37 | # GCC4MBED_TYPE: Type of build to produce. Allowed values are: |
38 | # Debug - Build for debugging. Disables optimizations and | |
39 | # links in debug MRI runtime. Best debugging | |
40 | # experience. | |
41 | # Release - Build for release with no debug support. | |
42 | # Checked - Release build with debug support. Due to | |
43 | # optimizations, debug experience won't be as good | |
44 | # as Debug but might be needed when bugs don't | |
45 | # reproduce in Debug builds. | |
46 | # default: Release | |
47 | # MRI_BREAK_ON_INIT: Should the program halt before calling into main(), | |
48 | # allowing the developer time to set breakpoints in main() | |
49 | # or in code run from within global constructors. | |
50 | # default: 1 - break on init. | |
51 | # MRI_SEMIHOST_STDIO: Set to non-zero value to allow debug monitor to use | |
52 | # semi-host calls to redirect stdin/stdout/stderr to the | |
53 | # gdb console. | |
54 | # default: 1 for Debug/Checked builds and 0 for Release. | |
55 | # MRI_UART: Select the UART to be used by the debugger. See mri.h for | |
56 | # allowed values. | |
57 | # default: MRI_UART_MBED_USB - Use USB based UART on the mbed. | |
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58 | # Example makefile: |
59 | # PROJECT=HelloWorld | |
60 | # SRC=. | |
61 | # GCC4MBED_DIR=../.. | |
62 | # LIBS_PREFIX=../agutil/agutil.ar | |
63 | # LIBS_SUFFIX= | |
64 | # | |
65 | # include ../../build/gcc4mbed.mk | |
66 | # | |
67 | ############################################################################### | |
68 | ||
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69 | # Check for undefined variables. |
70 | ifndef PROJECT | |
71 | $(error makefile must set PROJECT variable.) | |
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72 | endif |
73 | ||
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74 | ifndef GCC4MBED_DIR |
75 | $(error makefile must set GCC4MBED_DIR.) | |
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76 | endif |
77 | ||
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78 | |
79 | # Default variables. | |
80 | SRC ?= . | |
81 | GCC4MBED_DELAYED_STDIO_INIT ?= 0 | |
82 | GCC4MBED_TYPE ?= Release | |
83 | MRI_BREAK_ON_INIT ?= 1 | |
84 | MRI_UART ?= MRI_UART_MBED_USB | |
85 | ||
86 | ||
87 | # Configure MRI variables based on GCC4MBED_TYPE build type variable. | |
88 | ifeq "$(GCC4MBED_TYPE)" "Release" | |
89 | OPTIMIZATION = 2 | |
90 | MRI_ENABLE = 0 | |
91 | MRI_SEMIHOST_STDIO ?= 0 | |
92 | endif | |
93 | ||
94 | ||
95 | ifeq "$(GCC4MBED_TYPE)" "Debug" | |
96 | OPTIMIZATION = 0 | |
97 | MRI_ENABLE = 1 | |
98 | MRI_SEMIHOST_STDIO ?= 1 | |
99 | endif | |
100 | ||
101 | ||
102 | ifeq "$(GCC4MBED_TYPE)" "Checked" | |
103 | OPTIMIZATION = 2 | |
104 | MRI_ENABLE = 1 | |
105 | MRI_SEMIHOST_STDIO ?= 1 | |
106 | endif | |
107 | ||
108 | MRI_INIT_PARAMETERS=$(MRI_UART) | |
109 | ||
110 | ||
4cff3ded | 111 | # List of sources to be compiled/assembled |
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112 | CSRCS = $(wildcard $(SRC)/*.c $(SRC)/*/*.c $(SRC)/*/*/*.c $(SRC)/*/*/*/*.c $(SRC)/*/*/*/*/*.c) |
113 | ASRCS = $(wildcard $(SRC)/*.S $(SRC)/*/*.S $(SRC)/*/*/*.S $(SRC)/*/*/*/*.S $(SRC)/*/*/*/*/*.S) | |
114 | CPPSRCS = $(wildcard $(SRC)/*.cpp $(SRC)/*/*.cpp $(SRC)/*/*/*.cpp $(SRC)/*/*/*/*.cpp $(SRC)/*/*/*/*/*.cpp) | |
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115 | |
116 | # Add in the gcc4mbed shim sources that allow mbed code build under GCC | |
117 | CSRCS += $(GCC4MBED_DIR)/src/gcc4mbed.c $(GCC4MBED_DIR)/src/syscalls.c | |
118 | ||
119 | # List of the objects files to be compiled/assembled | |
120 | OBJECTS= $(CSRCS:.c=.o) $(ASRCS:.S=.o) $(CPPSRCS:.cpp=.o) | |
121 | LSCRIPT=$(GCC4MBED_DIR)/build/mbed.ld | |
122 | ||
123 | # Location of external library and header dependencies. | |
124 | EXTERNAL_DIR = $(GCC4MBED_DIR)/external | |
125 | ||
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126 | # Include path which points to external library headers and to subdirectories of this project which contain headers. |
127 | SUBDIRS = $(wildcard $(SRC)/* $(SRC)/*/* $(SRC)/*/*/* $(SRC)/*/*/*/* $(SRC)/*/*/*/*/*) | |
128 | PROJINCS = $(sort $(dir $(SUBDIRS))) | |
3c132bd0 | 129 | INCDIRS += $(PROJINCS) $(EXTERNAL_DIR)/mbed $(EXTERNAL_DIR)/mbed/LPC1768 $(EXTERNAL_DIR)/FATFileSystem $(GCC4MBED_DIR)/mri |
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130 | |
131 | # DEFINEs to be used when building C/C++ code | |
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132 | DEFINES = -DTARGET_LPC1768 -DGCC4MBED_DELAYED_STDIO_INIT=$(GCC4MBED_DELAYED_STDIO_INIT) |
133 | DEFINES += -DMRI_ENABLE=$(MRI_ENABLE) -DMRI_INIT_PARAMETERS='"$(MRI_INIT_PARAMETERS)"' -DMRI_BREAK_ON_INIT=$(MRI_BREAK_ON_INIT) | |
134 | DEFINES += -DMRI_SEMIHOST_STDIO=$(MRI_SEMIHOST_STDIO) | |
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135 | |
136 | # Libraries to be linked into final binary | |
3c132bd0 | 137 | LIBS = $(LIBS_PREFIX) $(GCC4MBED_DIR)/mri/mri.ar $(EXTERNAL_DIR)/mbed/LPC1768/mbed.ar $(EXTERNAL_DIR)/mbed/LPC1768/capi.ar $(EXTERNAL_DIR)/FATFileSystem/LPC1768/FATFileSystem.ar $(LIBS_SUFFIX) |
4cff3ded | 138 | |
4cff3ded | 139 | # Compiler Options |
3c132bd0 | 140 | GPFLAGS = -O$(OPTIMIZATION) -gstabs+3 -mcpu=cortex-m3 -mthumb -mthumb-interwork -fshort-wchar -ffunction-sections -fdata-sections -fpromote-loop-indices -Wall -Wextra -Wimplicit -Wcast-align -Wpointer-arith -Wredundant-decls -Wshadow -Wcast-qual -Wcast-align -fno-exceptions |
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141 | GPFLAGS += $(patsubst %,-I%,$(INCDIRS)) |
142 | GPFLAGS += $(DEFINES) | |
143 | ||
144 | LDFLAGS = -mcpu=cortex-m3 -mthumb -O$(OPTIMIZATION) -Wl,-Map=$(PROJECT).map,--cref,--gc-sections,--no-wchar-size-warning -T$(LSCRIPT) -L $(EXTERNAL_DIR)/gcc/LPC1768 | |
145 | ||
146 | ASFLAGS = $(LISTING) -mcpu=cortex-m3 -mthumb -x assembler-with-cpp | |
147 | ASFLAGS += $(patsubst %,-I%,$(INCDIRS)) | |
148 | ||
149 | # Compiler/Assembler/Linker Paths | |
150 | GPP = arm-none-eabi-g++ | |
151 | AS = arm-none-eabi-gcc | |
152 | LD = arm-none-eabi-g++ | |
153 | OBJCOPY = arm-none-eabi-objcopy | |
154 | OBJDUMP = arm-none-eabi-objdump | |
4cff3ded | 155 | SIZE = arm-none-eabi-size |
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156 | REMOVE = rm |
157 | ||
13e4a3f9 | 158 | # Switch to cs-rm on Windows and make sure that cmd.exe is used as shell. |
068f6a12 AW |
159 | ifeq "$(MAKE)" "cs-make" |
160 | REMOVE = cs-rm | |
13e4a3f9 | 161 | SHELL=cmd.exe |
068f6a12 | 162 | endif |
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163 | |
164 | ######################################################################### | |
3c132bd0 | 165 | .PHONY: all clean deploy |
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166 | |
167 | all:: $(PROJECT).hex $(PROJECT).bin $(PROJECT).disasm | |
168 | ||
169 | $(PROJECT).bin: $(PROJECT).elf | |
170 | $(OBJCOPY) -O binary $(PROJECT).elf $(PROJECT).bin | |
171 | ||
172 | $(PROJECT).hex: $(PROJECT).elf | |
173 | $(OBJCOPY) -R .stack -O ihex $(PROJECT).elf $(PROJECT).hex | |
174 | ||
175 | $(PROJECT).disasm: $(PROJECT).elf | |
176 | $(OBJDUMP) -d $(PROJECT).elf >$(PROJECT).disasm | |
177 | ||
3c132bd0 | 178 | $(PROJECT).elf: $(LSCRIPT) $(OBJECTS) $(LIBS) |
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179 | $(LD) $(LDFLAGS) $(OBJECTS) $(LIBS) -o $(PROJECT).elf |
180 | $(SIZE) $(PROJECT).elf | |
181 | ||
4cff3ded | 182 | clean: |
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183 | $(REMOVE) -f $(OBJECTS) |
184 | $(REMOVE) -f $(PROJECT).hex | |
185 | $(REMOVE) -f $(PROJECT).elf | |
186 | $(REMOVE) -f $(PROJECT).map | |
187 | $(REMOVE) -f $(PROJECT).bin | |
188 | $(REMOVE) -f $(PROJECT).disasm | |
189 | ||
190 | ifdef LPC_DEPLOY | |
191 | DEPLOY_COMMAND = $(subst PROJECT,$(PROJECT),$(LPC_DEPLOY)) | |
192 | deploy: | |
193 | $(DEPLOY_COMMAND) | |
194 | endif | |
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195 | |
196 | ######################################################################### | |
197 | # Default rules to compile .c and .cpp file to .o | |
198 | # and assemble .s files to .o | |
199 | ||
200 | .c.o : | |
201 | $(GPP) $(GPFLAGS) -c $< -o $(<:.c=.o) | |
202 | ||
203 | .cpp.o : | |
204 | $(GPP) $(GPFLAGS) -c $< -o $(<:.cpp=.o) | |
205 | ||
206 | .S.o : | |
207 | $(AS) $(ASFLAGS) -c $< -o $(<:.S=.o) | |
208 | ||
6c79da43 | 209 | ######################################################################### |