| #!/bin/sh |
| # Generates a small Makefile used in the root of the output |
| # directory, to allow make to be started from there. |
| # The Makefile also allow for more convenient build of external modules |
| |
| # Usage |
| # $1 - Kernel src directory |
| # $2 - Output directory |
| |
| |
| test ! -r $2/Makefile -o -O $2/Makefile || exit 0 |
| # Only overwrite automatically generated Makefiles |
| # (so we do not overwrite buildroot Makefile) |
| if test -e $2/Makefile && ! grep -q Automatically $2/Makefile |
| then |
| exit 0 |
| fi |
| echo " GEN $2/Makefile" |
| |
| cat << EOF > $2/Makefile |
| # Automatically generated by $0: don't edit |
| |
| ifeq ("\$(origin V)", "command line") |
| VERBOSE := \$(V) |
| endif |
| ifneq (\$(VERBOSE),1) |
| Q := @ |
| endif |
| |
| lastword = \$(word \$(words \$(1)),\$(1)) |
| makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) |
| |
| MAKEARGS := -C $1 |
| MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) |
| |
| MAKEFLAGS += --no-print-directory |
| |
| .PHONY: _all \$(MAKECMDGOALS) |
| |
| all := \$(filter-out Makefile,\$(MAKECMDGOALS)) |
| |
| _all: |
| \$(Q)umask 0022 && \$(MAKE) \$(MAKEARGS) \$(all) |
| |
| Makefile:; |
| |
| \$(all): _all |
| @: |
| |
| %/: _all |
| @: |
| EOF |
