blob: eb094faa8668336502f29a4676074acccaa336ef (
plain)
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
+++
title = "µC firmware: a simple Makefile"
date = 2023-08-18
+++
---
### General and basic Makefile for C compilation oriented towards embedded application
You'll have to adapt the file, add dependencies and sources on variables. By default, it uses the <a href="https://github.com/rui315/mold">mold</a> linker with the LDFLAGS `-fuse-ld=mold`. This file is also available in a git <a href="https://framagit.org/celec/mkuC">repository</a>.
```Make
OUTPUT_DIR ?= build
OUT ?= main
TARGET = $(OUTPUT_DIR)/$(OUT)
# Desired outputs:
OUTPUTS = $(TARGET).elf \
$(TARGET).hex \
$(TARGET).bin \
$(TARGET).sym \
$(TARGET).lst
CROSS ?=
CC = $(CROSS)gcc
LD = $(CROSS)ld
AR = $(CROSS)ar
AS = $(CROSS)as
OC = $(CROSS)objcopy
OD = $(CROSS)objdump
NM = $(CROSS)nm
RE = $(CROSS)readelf
SZ = $(CROSS)size
SRC = .
SRCS = $(wildcard $(SRC)/*.c)
SRCS_PP = $(wildcard $(SRC)/*.cpp)
SRCS_AS = $(wildcard $(SRC)/*.S)
OBJS = $(SRCS:.c=.o)
OBJS_PP = $(SRCS_PP:.cpp=.o)
OBJS_AS = $(SRCS_AS:.S=.o)
DEP = .
DEPS = $(wildcard $(DEP)/*.h)
ARCHFLAGS =
DEFINES =
INCLUDES = -I.
LOADS =
CPPFLAGS =
CFLAGS = $(CPPFLAGS) -std=gnu99 -pedantic -Wall -g3 -Os
CFLAGS += $(ARCHFLAGS)
ASFLAGS = $(ARCHFLAGS)
LDFLAGS = -fuse-ld=mold -Xlinker -Map=$(TARGET).map
LDFLAGS += -lc -lgcc
NMFLAGS = -n
target $(TARGET).bin: OCFLAGS = -Obinary
target $(TARGET).hex: OCFLAGS = -Oihex
ODFLAGS = -S
ARFLAGS = -r
VB ?= 0
ifneq ($(VB), 1)
V := @
endif
# Reminder:
# > $@ is the target variable
# > $< is the 1st prerequisite
# > $^ lists all prerequisites
.PHONY: all, clean, deepclean
all: $(OUTPUTS)
@echo " SIZE $(TARGET).elf"
$(V)$(SZ) $(TARGET).elf
clean:
@echo "Removing files..."
-find . -type f -name '*.o' | xargs rm -f
-find . -type f -name '*.d' | xargs rm -f
-find . -type f -name '*.map' | xargs rm -f
-rm -rf $(OUTPUTS)
%.o: %.c $(DEPS)
@echo " CC $<"
$(V)$(CC) $(DEFINES) $(CFLAGS) $(INCLUDES) -o $@ -c $<
%.o: %.cpp $(DEPS)
@echo " CC $<"
$(V)$(CC) $(DEFINES) $(CFLAGS) $(INCLUDES) -o $@ -c $<
%.o: %.S
@echo " AS $<"
$(V)$(AS) $(DEFINES) $(ASFLAGS) $(INCLUDES) -o $@ -c $<
$(TARGET).elf: $(OBJS)
@echo " LD $@"
@mkdir -p $(OUTPUT_DIR)
$(V)$(CC) -o $@ $^ $(LOADS) $(LDFLAGS)
$(TARGET).sym: $(TARGET).elf
@echo " NM $@"
$(V)$(NM) $(NMFLAGS) $^ > $@
$(TARGET).lst: $(TARGET).elf
@echo " OBJDUMP $@"
$(V)$(OD) $(ODFLAGS) $^ > $@
$(TARGET).hex: $(TARGET).elf
@echo " OBJCOPY $@"
$(V)$(OC) $(OCFLAGS) $^ $@
$(TARGET).bin: $(TARGET).elf
@echo " OBJCOPY $@"
$(V)$(OC) $(OCFLAGS) $^ $@
$(TARGET).a: $(OBJS)
@echo " AR $@"
@mkdir -p $(OUTPUT_DIR)
$(V)$(AR) $(ARFLAGS) -o $@ $^
### Embedded specifics
PATH := $(HOME)/.ftdi_cpu_prog/:$(PATH)
PATH := $(HOME)/.qemu/stm32/arm-softmmu/:$(PATH)
FLASHDEV ?= /dev/ttyUSB0
LISTENDEV ?= /dev/ttyUSB0
CROSS_QEMU ?= -system-arm
QFLAGS = -M stm32-p103 -serial stdio -serial stdio -serial stdio -kernel
.PHONY: flash, listen, qemu
flash: $(TARGET).bin
stm32flash.sh -w $^ $(FLASHDEV)
listen: flash
minicom -D $(LISTENDEV)
qemu: $(TARGET).bin
qemu$(CROSS_QEMU) $(QFLAGS) $^
```
|
