3 # Copyright 2002,2003, 2004, 2006 Develer S.r.l. (http://www.develer.com/)
7 # GCC-AVR standard Makefile part 1
10 # Author: Bernardo Innocenti <bernie@develer.com>
17 # see local pgm_config.mk for programmer customization.
18 -include pgm_config.mk
19 DPROG ?= -V -c stk500 -P /dev/ttyS0
21 # AVR ISP dongle that blows up easily
22 #DPROG = -V -c stk500 -P /dev/ttyS0
23 #DPROG = -V -c jtag2slow
26 # STK200 parallel cable
27 #DPROG = -c stk200 -E noreset
30 #DPROG = avarice --mkII -j usb -l
32 # PonyProg serial programmer
35 # Set to 1 to build for embedded devices.
36 # e.g. produce target.elf instead of target and target_nostrip
40 OPTCFLAGS = -ffunction-sections -fdata-sections
41 #OPTCFLAGS = -funsafe-loop-optimizations
44 #DEBUGCFLAGS = -gdwarf-2
50 # define some variables based on the AVR base path in $(AVR)
55 AS = $(CC) -x assembler-with-cpp
68 FLEXCAT = $(top_srcdir)/tools/flexcat/flexcat
70 # For conversion from ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
71 COFFCONVERT=$(OBJCOPY) \
73 --change-section-address .data-0x800000 \
74 --change-section-address .bss-0x800000 \
75 --change-section-address .noinit-0x800000 \
76 --change-section-address .eeprom-0x810000
83 # output format can be srec, ihex (avrobj is always created)
87 # Compiler flags for generating dependencies
90 # Compiler flags for generating source listings
91 LIST_FLAGS = -Wa,-anhlmsd=$(@:.o=.lst)
93 # Linker flags for generating map files
94 ifeq ($(EMBEDDED_TARGET), 1)
95 MAP_FLAGS = -Wl,-Map=$(@:%.elf=%.map),--cref
100 # Compiler warning flags for both C and C++
102 -W -Wformat -Wall -Wundef -Wpointer-arith -Wcast-qual \
103 -Wcast-align -Wwrite-strings -Wsign-compare \
105 -Wextra -Wstrict-aliasing=2 \
106 # -Wunsafe-loop-optimizations
108 # Compiler warning flags for C only
110 -Wmissing-prototypes -Wstrict-prototypes
112 # Default C preprocessor flags (for C, C++ and cpp+as)
115 # Default C compiler flags
116 CFLAGS = $(OPTCFLAGS) $(DEBUGCFLAGS) $(WARNFLAGS) $(C_WARNFLAGS) \
117 $(DEP_FLAGS) $(LIST_FLAGS) -std=gnu99
119 # Default C++ compiler flags
120 CXXFLAGS = $(OPTCFLAGS) $(DEBUGCFLAGS) $(WARNFLAGS) \
121 $(DEP_FLAGS) $(LIST_FLAGS)
123 # Default compiler assembly flags
124 CPPAFLAGS = $(DEBUGCFLAGS) -MMD
126 # Default assembler flags
127 ASFLAGS = $(DEBUGCFLAGS)
129 # Default linker flags
130 #LDFLAGS = $(MAP_FLAGS)
132 #bernie: does not complain for missing symbols!
133 LDFLAGS = $(MAP_FLAGS) -Wl,--gc-sections
136 AVRDUDEFLAGS = $(DPROG)