Arduino/hardware/arduino/sam/platform.txt

# SAM3 compile variables
# --------------------- 

name=Atmel SAM3
#compiler.path Official default is correct, only need to change this if you want to overide the initial default
compiler.path={0}/hardware/tools/g++_arm_none_eabi/bin/
compiler.c.cmd=arm-none-eabi-gcc
compiler.c.flags=-c -g -Os -w -mthumb -mlong-calls -ffunction-sections -nostdlib --param max-inline-insns-single=500 -Dprintf=iprintf
compiler.c.elf.cmd=arm-none-eabi-gcc
compiler.c.elf.flags=-Os -Wl,--gc-sections
compiler.S.flags=-c -g -assembler-with-cpp
compiler.cpp.cmd=arm-none-eabi-g++
compiler.cpp.flags=-c -g -Os -w -mthumb -mlong-calls -ffunction-sections -nostdlib --param max-inline-insns-single=500 -fno-rtti -fno-exceptions -Dprintf=iprintf
compiler.ar.cmd=arm-none-eabi-ar
compiler.ar.flags=rcs
compiler.objcopy.cmd=arm-none-eabi-objcopy
compiler.objcopy.eep.flags=-O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0
compiler.elf2hex.flags=-O binary
compiler.elf2hex.cmd=arm-none-eabi-objcopy
compiler.ldflags=
compiler.size.cmd=arm-none-eabi-size
compiler.upload.cmd=
compiler.upload.flags=
compiler.define=-DARDUINO=

compiler.libsam.c.flags=-I{core_path}/../../system/libsam -I{core_path}/../../system/CMSIS/Include/
#library.path=hardware/sam/cores/sam
#library.core.path=libraries;hardware/sam/libraries

# SAM3 compile patterns
# ---------------------

## Compile c files
recipe.c.o.pattern={toolchain_path}{compiler.c.cmd} {compiler.c.flags} -mcpu={build.mcu} -DF_CPU={build.f_cpu} -D{software}={ide_version} {build.extra_flags} {compiler.libsam.c.flags} {includes} {source_file} -o {object_file}

## Compile c++ files
recipe.cpp.o.pattern={toolchain_path}{compiler.cpp.cmd} {compiler.cpp.flags} -mcpu={build.mcu} -DF_CPU={build.f_cpu} -D{software}={ide_version} {build.extra_flags} {compiler.libsam.c.flags} {includes} {source_file} -o {object_file}

## Create archives
recipe.ar.pattern={toolchain_path}{compiler.ar.cmd} {compiler.ar.flags} {build_path}{archive_file} {object_file}

## Combine gc-sections, archives, and objects
recipe.c.combine.pattern={toolchain_path}{compiler.c.elf.cmd} {compiler.c.elf.flags} -mcpu={build.mcu} -T{variant_path}{build.ldscript} -Wl,-Map,{build_path}{project_name}.map -o {build_path}{project_name}.elf -L{build_path} -lm -lgcc -mthumb -Wl,--cref -Wl,--check-sections -Wl,--gc-sections -Wl,--entry=Reset_Handler -Wl,--unresolved-symbols=report-all -Wl,--warn-common -Wl,--warn-section-align -Wl,--warn-unresolved-symbols -Wl,--start-group {object_files} {variant_path}libsam_sam3u4e_gcc_rel.a {build_path}{archive_file} -Wl,--end-group

## Create eeprom
recipe.objcopy.eep.pattern=

## Create hex
recipe.objcopy.hex.pattern={toolchain_path}{compiler.elf2hex.cmd} {compiler.elf2hex.flags} {build_path}{project_name}.elf {build_path}{project_name}.bin

## Compute Size
#recipe.size.pattern={toolchain_path}{1} {2}.elf