1#
2# SPDX-License-Identifier: BSD-3-Clause
3#
4# Copyright © 2019 Keith Packard
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9#
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12#
13# 2. Redistributions in binary form must reproduce the above
14#    copyright notice, this list of conditions and the following
15#    disclaimer in the documentation and/or other materials provided
16#    with the distribution.
17#
18# 3. Neither the name of the copyright holder nor the names of its
19#    contributors may be used to endorse or promote products derived
20#    from this software without specific prior written permission.
21#
22# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33# OF THE POSSIBILITY OF SUCH DAMAGE.
34#
35
36CFLAGS=--oslib=semihost -Os
37
38CFLAGS_RISCV=$(CFLAGS) -march=rv32imac -mabi=ilp32 -Triscv.ld
39CC_RISCV=riscv64-unknown-elf-gcc -specs=picolibc.specs $(CFLAGS_RISCV)
40CXXFLAGS_RISCV=$(CFLAGS) -march=rv32imac -mabi=ilp32 -Triscv-cpp.ld
41CXX_RISCV=riscv64-unknown-elf-g++ -specs=picolibcpp.specs $(CXXFLAGS_RISCV)
42
43CFLAGS_ARM=$(CFLAGS) -mcpu=cortex-m3 -Tarm.ld
44CC_ARM=arm-none-eabi-gcc -specs=picolibc.specs $(CFLAGS_ARM)
45CXXFLAGS_ARM=$(CFLAGS) -mcpu=cortex-m3 -Tarm-cpp.ld
46CXX_ARM=arm-none-eabi-g++ -specs=picolibcpp.specs $(CXXFLAGS_ARM)
47
48CFLAGS_AARCH64=$(CFLAGS) -Taarch64.ld
49CC_AARCH64=aarch64-linux-gnu-gcc -specs=picolibc.specs $(CFLAGS_AARCH64)
50CXXFLAGS_AARCH64=$(CFLAGS) -Taarch64-cpp.ld
51CXX_AARCH64=aarch64-linux-gnu-g++ -specs=picolibcpp.specs $(CXXFLAGS_AARCH64)
52
53all: \
54	hello-world-arm.elf hello-world-aarch64.elf \
55	hello-world-riscv.elf hello-world-native.elf \
56	printf.elf printf-int.elf printf-float.elf
57
58all-cpp: \
59	hello-worldpp-arm.elf hello-worldpp-aarch64.elf \
60	hello-worldpp-riscv.elf hello-worldpp-native.elf
61
62hello-world-arm.elf: hello-world.c
63	$(CC_ARM) -o $@ $^ -Wl,-Map=hello-world-arm.map
64
65hello-world-aarch64.elf: hello-world.c
66	$(CC_AARCH64) -o $@ $^ -Wl,-Map=hello-world-aarch64.map
67
68hello-world-riscv.elf: hello-world.c
69	$(CC_RISCV) -o $@ $^ -Wl,-Map=hello-world-riscv.map
70
71hello-world-native.elf: hello-world.c
72	cc -o $@ $^
73
74printf.elf: printf.c
75	$(CC_ARM) -o $@ $^ -Wl,-Map=printf.map
76
77printf-int.elf: printf.c
78	$(CC_ARM) -DPICOLIBC_INTEGER_PRINTF_SCANF -o $@ $^ -Wl,-Map=printf-int.map
79
80printf-float.elf: printf.c
81	$(CC_ARM) -DPICOLIBC_FLOAT_PRINTF_SCANF -o $@ $^ -Wl,-Map=printf-float.map
82
83hello-worldpp-native.elf: hello-worldpp.cpp
84	c++ -o $@ $^
85
86hello-worldpp-arm.elf:  hello-worldpp.cpp
87	$(CXX_ARM) -Wl,-Map=hello-worldpp-arm.map -o $@ $^
88
89hello-worldpp-aarch64.elf:  hello-worldpp.cpp
90	$(CXX_AARCH64) -Wl,-Map=hello-worldpp-aarch64.map -o $@ $^
91
92hello-worldpp-riscv.elf:  hello-worldpp.cpp
93	$(CXX_RISCV) -Wl,-Map=hello-worldpp-riscv.map -o $@ $^
94
95clean:
96	rm -f *.elf *.map
97
98