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# set default values for selected global variables
FLASH_ADDR ?= 0x0
export Q # Used in front of Makefile lines to suppress the printing of the command if user did not opt-in to see them.
export QQ # as Q, but be more quiet
export QUIET # The parameter to use whether to show verbose makefile commands or not.
export APPLICATION # The application, set in the Makefile which is run by the user.
export APPLICATION_MODULE # The application module name.
export BOARD # The board to compile the application for.
export CPU # The CPU, set by the board's Makefile.include.
export CPU_MODEL # The specific identifier of the used CPU, used for some CPU implementations to differentiate between different memory layouts
export MCU # The MCU, set by the board's Makefile.include, or defaulted to the same value as CPU.
export INCLUDES # The extra include paths, set by the various Makefile.include files.
export CXXINCLUDES # The extra include paths for c++, set by the various Makefile.include files.
export USEMODULE # Sys Module dependencies of the application. Set in the application's Makefile.
export USEPKG # Pkg dependencies (third party modules) of the application. Set in the application's Makefile.
export DISABLE_MODULE # Used in the application's Makefile to suppress DEFAULT_MODULEs.
export APPDEPS # Files / Makefile targets that need to be created before the application can be build. Set in the application's Makefile.
# BUILDDEPS # Files / Makefile targets that need to be created before starting to build.
export RIOTBASE # The root folder of RIOT. The folder where this very file lives in.
export RIOTCPU # For third party CPUs this folder is the base of the CPUs.
export RIOTBOARD # For third party BOARDs this folder is the base of the BOARDs.
export RIOTPKG # For overriding RIOT's pkg directory
export RIOTTOOLS # Location of host machine tools
export RIOTPROJECT # Top level git root of the project being built, or PWD if not a git repository
export RIOTMAKE # Location of all supplemental Makefiles (such as this file)
export BINDIRBASE # This is the folder where the application should be built in. For each BOARD a different subfolder is used.
export BINDIR # This is the folder where the application should be built in.
export APPDIR # The base folder containing the application
export PKGDIRBASE # The base folder for building packages
export PYTHONPATH # Python default search path for module filesi, with RIOT specific packages
export FEATURES_REQUIRED # List of required features by the application
export FEATURES_PROVIDED # List of provided features by the board
export FEATURES_OPTIONAL # List of nice to have features
# TOOLCHAINS_SUPPORTED # List of supported toolchains by an MCU (gnu/llvm/...).
# TOOLCHAINS_BLACKLISTED # List of unspported toolchains for a module or an application.
export TARGET_ARCH # The target platform name, in GCC triple notation, e.g. "arm-none-eabi", "i686-elf", "avr"
export PREFIX # The prefix of the toolchain commands, usually "$(TARGET_ARCH)-", e.g. "arm-none-eabi-" or "msp430-".
export CC # The C compiler to use.
export CXX # The CXX compiler to use.
export CCAS # The C compiler to use for assembler files, typically the same as CC.
export CFLAGS # The compiler flags. Must only ever be used with `+=`.
export CXXUWFLAGS # (Patterns of) flags in CFLAGS that should not be passed to CXX.
export CXXEXFLAGS # Additional flags that should be passed to CXX.
export CCASUWFLAGS # (Patterns of) flags in CFLAGS that should not be passed to CCAS.
export CCASEXFLAGS # Additional flags that should be passed to CCAS.
export AR # The command to create the object file archives.
export ARFLAGS # Command-line options to pass to AR, default `rcs`.
export AS # The assembler.
export ASFLAGS # Flags for the assembler.
export LINK # The command used to link the files. Must take the same parameters as GCC, i.e. "ld" won't work.
export LINKFLAGS # Flags to supply in the linking step.
export LTOFLAGS # extra CFLAGS for compiling with link time optimization
export OBJCOPY # The command used to create the HEXFILE.
export OFLAGS # The parameter for OBJCOPY, e.g. to strip the debug information.
export OBJDUMP # The command used to create the assembly listing.
export OBJDUMPFLAGS # The parameter for OBJDUMP.
export SIZE # The command to read to size of the ELF sections.
export UNDEF # Object files that the linker must include in the ELFFILE even if no call to the functions or symbols (ex: interrupt vectors).
export WERROR # Treat all compiler warnings as errors if set to 1 (see -Werror flag in GCC manual)
export GITCACHE # path to git-cache executable
export GIT_CACHE_DIR # path to git-cache cache directory
export FLASHER # The command to call on "make flash".
export FFLAGS # The parameters to supply to FLASHER.
export FLASH_ADDR # Define an offset to flash code into ROM memory.
export TERMPROG # The command to call on "make term".
export TERMFLAGS # Additional parameters to supply to TERMPROG.
export PORT # The port to connect the TERMPROG to.
export ELFFILE # The unstripped result of the compilation.
export HEXFILE # The stripped result of the compilation.
export DEBUGGER # The command to call on "make debug", usually a script starting the GDB front-end.
export DEBUGGER_FLAGS # The parameters to supply to DEBUGGER.
export DEBUGSERVER # The command to call on "make debug-server", usually a script starting the GDB server.
export DEBUGSERVER_FLAGS # The parameters to supply to DEBUGSERVER.
export RESET # The command to call on "make reset", this command resets/reboots the target.
export RESET_FLAGS # The parameters to supply to RESET.
export CCACHE_BASEDIR # ccache basedir, allows multiple riot build
# directories to share a ccache directory
export DLCACHE # directory used to cache http downloads
export DOWNLOAD_TO_FILE # Use `$(DOWNLOAD_TO_FILE) $(DESTINATION) $(URL)` to download `$(URL)` to `$(DESTINATION)`.
export DOWNLOAD_TO_STDOUT # Use `$(DOWNLOAD_TO_STDOUT) $(URL)` to download `$(URL)` output `$(URL)` to stdout, e.g. to be piped into `tar xz`.
export UNZIP_HERE # Use `cd $(SOME_FOLDER) && $(UNZIP_HERE) $(SOME_FILE)` to extract the contents of the zip file `$(SOME_FILE)` into `$(SOME_FOLDER)`.
export LAZYSPONGE # Command saving stdin to a file only on content update.
export LAZYSPONGE_FLAGS # Parameters supplied to LAZYSPONGE.