2 # This makefile take each "at*" file, extracts it's part name
3 # And compile it into an ELF binary.
4 # It also disassemble it for debugging purposes.
6 # The code is compiled "optimized" to the max.
8 # The wierd "-Wl,--undefined=_mmcu,--section-start=.mmcu=0x910000"
9 # is used to tell the linker not to discard the .mmcu section,
10 # otherwise the --gc-sections will delete it.
12 # Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
14 # This file is part of simavr.
16 # simavr is free software: you can redistribute it and/or modify
17 # it under the terms of the GNU General Public License as published by
18 # the Free Software Foundation, either version 3 of the License, or
19 # (at your option) any later version.
21 # simavr is distributed in the hope that it will be useful,
22 # but WITHOUT ANY WARRANTY; without even the implied warranty of
23 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 # GNU General Public License for more details.
26 # You should have received a copy of the GNU General Public License
27 # along with simavr. If not, see <http://www.gnu.org/licenses/>.
29 CFLAGS += -g --std=gnu99 -O2
30 CFLAGS += ${patsubst %,-I%,${subst :, ,${IPATH}}}
33 ifeq (${shell uname}, Darwin)
34 AVR_ROOT := "/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/"
35 AVR_INC := ${AVR_ROOT}/avr-4/
36 AVR := ${AVR_ROOT}/bin/avr-
37 LFLAGS += -L/opt/local/lib
39 AVR_ROOT := /usr/lib/avr
40 AVR_INC := ${AVR_ROOT}
44 # The code is compiled "optimized" to the max.
46 # The wierd "-Wl,--undefined=_mmcu,--section-start=.mmcu=0x910000"
47 # is used to tell the linker not to discard the .mmcu section,
48 # otherwise the --gc-sections will delete it.
51 @${AVR}objcopy -j .text -j .data -j .eeprom -O ihex ${<} ${@}
54 @${AVR}objdump -j .text -j .data -j .bss -d ${<} > ${@}
56 # --mcall-prologues can be used here, but messes up debugging a little
59 @part=${<} ; part=$${part/_*}; \
60 ${AVR}gcc -Wall -gdwarf-2 -Os -std=gnu99 \
63 -fno-inline-small-functions \
64 -ffunction-sections -fdata-sections \
65 -Wl,--relax,--gc-sections \
66 -Wl,--undefined=_mmcu,--section-start=.mmcu=0x910000 \
67 -I../include -I../../include \
69 @${AVR}size ${@}|sed '1d'
74 @$(CC) $(CFLAGS) -MD \
81 # include the dependency files generated by gcc, if any
82 -include ${wildcard ${OBJ}/*.d}