Hi folks,
I'm just starting to work with Eclipse IDE and the avr-eclipse plugin this week. I have a project that I started just working with a text editor (kate on linux) and a makefile written by Jorg. I find a huge size disparity between the .hex kicked out by Jorg's makefile and the one kicked out by eclipse.
Jorg's makefile .hex size: 6288 byes
Exlipse .hex size: 9124 bytes
Obviously this is not an acceptable size loss. Any idea what I should do to curb the programming space loss when I compile with eclipse? Both makefiles attached.
Thanks!
Jorg's makefile make output:
make set -e; avr-gcc -MM -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=box_game.lst -std=gnu99 box_game.c \ | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > box_game.d; \ [ -s box_game.d ] || rm -f box_game.d set -e; avr-gcc -MM -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=3595_LCD.lst -std=gnu99 3595_LCD.c \ | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > 3595_LCD.d; \ [ -s 3595_LCD.d ] || rm -f 3595_LCD.d set -e; avr-gcc -MM -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=main.lst -std=gnu99 main.c \ | sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > main.d; \ [ -s main.d ] || rm -f main.d -------- begin -------- avr-gcc (GCC) 4.3.0 Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Compiling: main.c avr-gcc -c -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=main.lst -std=gnu99 main.c -o main.o Compiling: 3595_LCD.c avr-gcc -c -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=3595_LCD.lst -std=gnu99 3595_LCD.c -o 3595_LCD.o Compiling: box_game.c avr-gcc -c -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=box_game.lst -std=gnu99 box_game.c -o box_game.o Linking: main.elf avr-gcc -mmcu=atmega168 -I. -g -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=main.o -std=gnu99 main.o 3595_LCD.o box_game.o --output main.elf -Wl,-Map=main.map,--cref -lm Creating load file for Flash: main.hex avr-objcopy -O ihex -R .eeprom main.elf main.hex Creating load file for EEPROM: main.eep avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load" \ --change-section-lma .eeprom=0 -O ihex main.elf main.eep avr-objcopy: --change-section-lma .eeprom=0x00000000 never used Creating Extended Listing: main.lss avr-objdump -h -S main.elf > main.lss Creating Symbol Table: main.sym avr-nm -n main.elf > main.sym Size after: main.elf : section size addr .data 34 8388864 .text 6254 0 .bss 37 8388898 .stab 17832 0 .stabstr 5353 0 Total 29510 Errors: none -------- end --------
Eclipse makefile output:
**** Build of configuration Release for project box_game2 **** make all Building file: ../3595_LCD.c Invoking: AVR Compiler avr-gcc -Wall -Os -fpack-struct -fshort-enums -funsigned-char -funsigned-bitfields -std=gnu99 -mmcu=atmega168 -DF_CPU=8000000UL -MMD -MP -MF"3595_LCD.d" -MT"3595_LCD.d" -c -o"3595_LCD.o" "../3595_LCD.c" Finished building: ../3595_LCD.c Building file: ../box_game.c Invoking: AVR Compiler avr-gcc -Wall -Os -fpack-struct -fshort-enums -funsigned-char -funsigned-bitfields -std=gnu99 -mmcu=atmega168 -DF_CPU=8000000UL -MMD -MP -MF"box_game.d" -MT"box_game.d" -c -o"box_game.o" "../box_game.c" Finished building: ../box_game.c Building file: ../main.c Invoking: AVR Compiler avr-gcc -Wall -Os -fpack-struct -fshort-enums -funsigned-char -funsigned-bitfields -std=gnu99 -mmcu=atmega168 -DF_CPU=8000000UL -MMD -MP -MF"main.d" -MT"main.d" -c -o"main.o" "../main.c" Finished building: ../main.c Building target: box_game2.elf Invoking: AVR C Linker avr-gcc -Wl,-Map,box_game2.map -mmcu=atmega168 -o"box_game2.elf" ./3595_LCD.o ./box_game.o ./main.o Finished building target: box_game2.elf Invoking: AVR Create Extended Listing avr-objdump -h -S box_game2.elf >"box_game2.lss" Finished building: box_game2.lss Create Flash image (ihex format) avr-objcopy -R .eeprom -O ihex box_game2.elf "box_game2.hex" Finished building: box_game2.hex Create eeprom image (ihex format) avr-objcopy -j .eeprom --no-change-warnings --change-section-lma .eeprom=0 -O ihex box_game2.elf "box_game2.eep" Finished building: box_game2.eep Invoking: Print Size avr-size --format=berkeley -t box_game2.elf text data bss dec hex filename 8826 298 37 9161 23c9 box_game2.elf 8826 298 37 9161 23c9 (TOTALS) Finished building: sizedummy
