Basic build
+ make defconfig && make
+ or
make config T=x86_64-native-linuxapp-gcc && make
Build commands
config get configuration from target template (T=)
+ defconfig auto-select target template based on arch, OS, etc.
all same as build (default rule)
build build in a configured directory
clean remove files but keep configuration
install install optionally staged in DESTDIR
examples build examples for given targets (T=)
examples_clean clean examples for given targets (T=)
+ test compile tests and run basic unit tests
+ test-* run specific subset of unit tests
+ tags|etags|gtags generate tags database for given targets (T=)
+ cscope generate cscope database for given targets (T=)
Build variables
EXTRA_CPPFLAGS preprocessor options
EXTRA_CFLAGS compiler options