developer | 6a1998b | 2022-12-08 18:09:45 +0800 | [diff] [blame] | 1 | --- a/Makefile |
| 2 | +++ b/Makefile |
| 3 | @@ -5,7 +5,7 @@ |
| 4 | ifeq ($(KERNELRELEASE),) |
| 5 | |
| 6 | MAKEFLAGS += --no-print-directory |
| 7 | -SHELL := /bin/bash |
| 8 | +SHELL := /usr/bin/env bash |
| 9 | BACKPORT_DIR := $(shell pwd) |
| 10 | |
| 11 | KMODDIR ?= updates |
| 12 | @@ -19,6 +19,7 @@ KLIB_BUILD ?= $(KLIB)/build/ |
| 13 | KERNEL_CONFIG := $(KLIB_BUILD)/.config |
| 14 | KERNEL_MAKEFILE := $(KLIB_BUILD)/Makefile |
| 15 | CONFIG_MD5 := $(shell md5sum $(KERNEL_CONFIG) 2>/dev/null | sed 's/\s.*//') |
| 16 | +STAMP_KERNEL_CONFIG := .kernel_config_md5_$(CONFIG_MD5) |
| 17 | |
| 18 | export KLIB KLIB_BUILD BACKPORT_DIR KMODDIR KMODPATH_ARG |
| 19 | |
| 20 | @@ -36,7 +37,8 @@ mrproper: |
| 21 | @rm -f .kernel_config_md5 Kconfig.versions Kconfig.kernel |
| 22 | @rm -f backport-include/backport/autoconf.h |
| 23 | |
| 24 | -.DEFAULT: |
| 25 | +.SILENT: $(STAMP_KERNEL_CONFIG) |
| 26 | +$(STAMP_KERNEL_CONFIG): |
| 27 | @set -e ; test -f local-symbols || ( \ |
| 28 | echo "/--------------" ;\ |
| 29 | echo "| You shouldn't run make in the backports tree, but only in" ;\ |
| 30 | @@ -60,58 +62,62 @@ mrproper: |
| 31 | echo "| (that isn't currently running.)" ;\ |
| 32 | echo "\\--" ;\ |
| 33 | false) |
| 34 | - @set -e ; if [ "$$(cat .kernel_config_md5 2>/dev/null)" != "$(CONFIG_MD5)" ] ;\ |
| 35 | - then \ |
| 36 | - echo -n "Generating local configuration database from kernel ..." ;\ |
| 37 | - grep -v -f local-symbols $(KERNEL_CONFIG) | grep = | ( \ |
| 38 | - while read l ; do \ |
| 39 | - if [ "$${l:0:7}" != "CONFIG_" ] ; then \ |
| 40 | - continue ;\ |
| 41 | - fi ;\ |
| 42 | - l=$${l:7} ;\ |
| 43 | - n=$${l%%=*} ;\ |
| 44 | - v=$${l#*=} ;\ |
| 45 | - if [ "$$v" = "m" ] ; then \ |
| 46 | - echo config $$n ;\ |
| 47 | - echo ' tristate' ;\ |
| 48 | - elif [ "$$v" = "y" ] ; then \ |
| 49 | - echo config $$n ;\ |
| 50 | - echo ' bool' ;\ |
| 51 | - else \ |
| 52 | - continue ;\ |
| 53 | - fi ;\ |
| 54 | - echo " default $$v" ;\ |
| 55 | - echo "" ;\ |
| 56 | - done \ |
| 57 | - ) > Kconfig.kernel ;\ |
| 58 | - kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) M=$(BACKPORT_DIR) \ |
| 59 | - kernelversion | sed 's/^\(\([3-5]\|2\.6\)\.[0-9]\+\).*/\1/;t;d');\ |
| 60 | - test "$$kver" != "" || echo "Kernel version parse failed!" ;\ |
| 61 | - test "$$kver" != "" ;\ |
| 62 | - kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\ |
| 63 | - kvers="$$kvers $$(seq 0 19 | sed 's/^/3./')" ;\ |
| 64 | - kvers="$$kvers $$(seq 0 20 | sed 's/^/4./')" ;\ |
| 65 | - kvers="$$kvers $$(seq 0 99 | sed 's/^/5./')" ;\ |
| 66 | - print=0 ;\ |
| 67 | - for v in $$kvers ; do \ |
| 68 | - if [ "$$print" = "1" ] ; then \ |
| 69 | - echo config KERNEL_$$(echo $$v | tr . _) ;\ |
| 70 | - echo " def_bool y" ;\ |
| 71 | - fi ;\ |
| 72 | - if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\ |
| 73 | - done > Kconfig.versions ;\ |
| 74 | - # RHEL as well, sadly we need to grep for it ;\ |
| 75 | - RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \ |
| 76 | - sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\ |
| 77 | - RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \ |
| 78 | - sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\ |
| 79 | - for v in $$(seq 0 $$RHEL_MINOR) ; do \ |
| 80 | - echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\ |
| 81 | - echo " def_bool y" ;\ |
| 82 | - done >> Kconfig.versions ;\ |
| 83 | - echo " done." ;\ |
| 84 | - fi ;\ |
| 85 | - echo "$(CONFIG_MD5)" > .kernel_config_md5 |
| 86 | + @rm -f .kernel_config_md5_* |
| 87 | + @touch $@ |
| 88 | + |
| 89 | +Kconfig.kernel: $(STAMP_KERNEL_CONFIG) local-symbols |
| 90 | + @printf "Generating local configuration database from kernel ..." |
| 91 | + @grep -v -f local-symbols $(KERNEL_CONFIG) | grep = | ( \ |
| 92 | + while read l ; do \ |
| 93 | + if [ "$${l:0:7}" != "CONFIG_" ] ; then \ |
| 94 | + continue ;\ |
| 95 | + fi ;\ |
| 96 | + l=$${l:7} ;\ |
| 97 | + n=$${l%%=*} ;\ |
| 98 | + v=$${l#*=} ;\ |
| 99 | + if [ "$$v" = "m" ] ; then \ |
| 100 | + echo config $$n ;\ |
| 101 | + echo ' tristate' ;\ |
| 102 | + elif [ "$$v" = "y" ] ; then \ |
| 103 | + echo config $$n ;\ |
| 104 | + echo ' bool' ;\ |
| 105 | + else \ |
| 106 | + continue ;\ |
| 107 | + fi ;\ |
| 108 | + echo " default $$v" ;\ |
| 109 | + echo "" ;\ |
| 110 | + done \ |
| 111 | + ) > $@ |
| 112 | + @echo " done." |
| 113 | + |
| 114 | +Kconfig.versions: Kconfig.kernel |
| 115 | + @kver=$$($(MAKE) --no-print-directory -C $(KLIB_BUILD) M=$(BACKPORT_DIR) \ |
| 116 | + kernelversion | sed 's/^\(\([3-5]\|2\.6\)\.[0-9]\+\).*/\1/;t;d');\ |
| 117 | + test "$$kver" != "" || echo "Kernel version parse failed!" ;\ |
| 118 | + test "$$kver" != "" ;\ |
| 119 | + kvers="$$(seq 14 39 | sed 's/^/2.6./')" ;\ |
| 120 | + kvers="$$kvers $$(seq 0 19 | sed 's/^/3./')" ;\ |
| 121 | + kvers="$$kvers $$(seq 0 20 | sed 's/^/4./')" ;\ |
| 122 | + kvers="$$kvers $$(seq 0 99 | sed 's/^/5./')" ;\ |
| 123 | + print=0 ;\ |
| 124 | + for v in $$kvers ; do \ |
| 125 | + if [ "$$print" = "1" ] ; then \ |
| 126 | + echo config KERNEL_$$(echo $$v | tr . _) ;\ |
| 127 | + echo " def_bool y" ;\ |
| 128 | + fi ;\ |
| 129 | + if [ "$$v" = "$$kver" ] ; then print=1 ; fi ;\ |
| 130 | + done > $@ |
| 131 | + @RHEL_MAJOR=$$(grep '^RHEL_MAJOR' $(KERNEL_MAKEFILE) | \ |
| 132 | + sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\ |
| 133 | + RHEL_MINOR=$$(grep '^RHEL_MINOR' $(KERNEL_MAKEFILE) | \ |
| 134 | + sed 's/.*=\s*\([0-9]*\)/\1/;t;d') ;\ |
| 135 | + for v in $$(seq 0 $$RHEL_MINOR) ; do \ |
| 136 | + echo config BACKPORT_RHEL_KERNEL_$${RHEL_MAJOR}_$$v ;\ |
| 137 | + echo " def_bool y" ;\ |
| 138 | + done >> $@ |
| 139 | + |
| 140 | +.DEFAULT: |
| 141 | + @$(MAKE) Kconfig.versions |
| 142 | @$(MAKE) -f Makefile.real "$@" |
| 143 | |
| 144 | .PHONY: defconfig-help |
| 145 | --- a/Makefile.real |
| 146 | +++ b/Makefile.real |
| 147 | @@ -59,7 +59,7 @@ defconfig-%:: |
| 148 | |
| 149 | backport-include/backport/autoconf.h: .config Kconfig.versions Kconfig.kernel |
| 150 | @$(MAKE) oldconfig |
| 151 | - @echo -n "Building backport-include/backport/autoconf.h ..." |
| 152 | + @printf "Building backport-include/backport/autoconf.h ..." |
| 153 | @grep -f local-symbols .config | ( \ |
| 154 | echo "#ifndef COMPAT_AUTOCONF_INCLUDED" ;\ |
| 155 | echo "#define COMPAT_AUTOCONF_INCLUDED" ;\ |
| 156 | @@ -80,7 +80,12 @@ backport-include/backport/autoconf.h: .c |
| 157 | esac ;\ |
| 158 | done ;\ |
| 159 | echo "#endif /* COMPAT_AUTOCONF_INCLUDED */" ;\ |
| 160 | - ) > backport-include/backport/autoconf.h |
| 161 | + ) > $@.new |
| 162 | + @if cmp -s $@ $@.new; then \ |
| 163 | + rm -f $@.new; \ |
| 164 | + else \ |
| 165 | + mv $@.new $@; \ |
| 166 | + fi |
| 167 | @echo " done." |
| 168 | |
| 169 | .PHONY: modules |