| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | # Generates a small Makefile used in the root of the output |
| 3 | # directory, to allow make to be started from there. |
| 4 | # The Makefile also allow for more convinient build of external modules |
| 5 | |
| 6 | # Usage |
| 7 | # $1 - Kernel src directory |
| 8 | # $2 - Output directory |
| 9 | # $3 - version |
| 10 | # $4 - patchlevel |
| 11 | |
| 12 | |
| 13 | test ! -r $2/Makefile -o -O $2/Makefile || exit 0 |
| 14 | # Only overwrite automatically generated Makefiles |
| 15 | # (so we do not overwrite kernel Makefile) |
| 16 | if test -e $2/Makefile && ! grep -q Automatically $2/Makefile |
| 17 | then |
| 18 | exit 0 |
| 19 | fi |
| 20 | if [ "${quiet}" != "silent_" ]; then |
| 21 | echo " GEN $2/Makefile" |
| 22 | fi |
| 23 | |
| 24 | cat << EOF > $2/Makefile |
| 25 | # Automatically generated by $0: don't edit |
| 26 | |
| 27 | VERSION = $3 |
| 28 | PATCHLEVEL = $4 |
| 29 | |
| 30 | lastword = \$(word \$(words \$(1)),\$(1)) |
| 31 | makedir := \$(dir \$(call lastword,\$(MAKEFILE_LIST))) |
| 32 | |
| 33 | ifeq ("\$(origin V)", "command line") |
| 34 | VERBOSE := \$(V) |
| 35 | endif |
| 36 | ifneq (\$(VERBOSE),1) |
| 37 | Q := @ |
| 38 | endif |
| 39 | |
| 40 | MAKEARGS := -C $1 |
| 41 | MAKEARGS += O=\$(if \$(patsubst /%,,\$(makedir)),\$(CURDIR)/)\$(patsubst %/,%,\$(makedir)) |
| 42 | |
| 43 | MAKEFLAGS += --no-print-directory |
| 44 | |
| 45 | .PHONY: __sub-make \$(MAKECMDGOALS) |
| 46 | |
| 47 | __sub-make: |
| 48 | \$(Q)\$(MAKE) \$(MAKEARGS) \$(MAKECMDGOALS) |
| 49 | |
| 50 | \$(filter-out __sub-make, \$(MAKECMDGOALS)): __sub-make |
| 51 | @: |
| 52 | EOF |