mirror of
https://github.com/halleysfifthinc/AVCLAN-Mockingboard.git
synced 2026-08-06 17:03:17 +00:00
Allen Hill
35 lines
1.5 KiB
CMake
35 lines
1.5 KiB
CMake
##########################################################################
|
|
# AVR cross-compilation toolchain (ATtiny-0/1/2 series, UPDI programming).
|
|
#
|
|
# Originally based on Matthias Kleemann's avr-cmake module
|
|
# (<dev@layer128.net>, "THE ANY BEVERAGE-WARE LICENSE"), but slimmed to just
|
|
# the cross-compiler definition, the AVR-wide compile/link flags, and the
|
|
# avrdude configuration the `flash` target needs.
|
|
#
|
|
##########################################################################
|
|
|
|
##########################################################################
|
|
# Cross-compiler definition
|
|
##########################################################################
|
|
find_program(AVR_CC avr-gcc REQUIRED)
|
|
find_program(AVR_CXX avr-g++ REQUIRED)
|
|
|
|
set(CMAKE_SYSTEM_NAME Generic)
|
|
set(CMAKE_SYSTEM_PROCESSOR avr)
|
|
set(CMAKE_C_COMPILER ${AVR_CC})
|
|
set(CMAKE_CXX_COMPILER ${AVR_CXX})
|
|
|
|
set(AVR_MCU attiny3216 CACHE STRING "Target AVR device" FORCE)
|
|
|
|
set(CMAKE_C_FLAGS_INIT "-mmcu=${AVR_MCU}")
|
|
set(CMAKE_CXX_FLAGS_INIT "-mmcu=${AVR_MCU}")
|
|
set(CMAKE_ASM_FLAGS_INIT "-mmcu=${AVR_MCU}")
|
|
set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections -mrelax")
|
|
|
|
##########################################################################
|
|
# Bypass the link step in CMake's compiler sanity check (and the
|
|
# libc-version try_compile): this is a cross compiler, so a full executable
|
|
# link would fail. See https://stackoverflow.com/q/53633705
|
|
##########################################################################
|
|
set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
|