1 #!/bin/sh 1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0-only 2 # SPDX-License-Identifier: GPL-2.0-only
3 3
4 set -eu 4 set -eu
5 5
6 destdir=${1} 6 destdir=${1}
7 7
8 is_enabled() { 8 is_enabled() {
9 grep -q "^$1=y" include/config/auto.co 9 grep -q "^$1=y" include/config/auto.conf
10 } 10 }
11 11
12 find_in_scripts() { 12 find_in_scripts() {
13 find scripts \ 13 find scripts \
14 \( -name atomic -o -name dtc - 14 \( -name atomic -o -name dtc -o -name kconfig -o -name package \) -prune -o \
15 ! -name unifdef -a ! -name mk_ 15 ! -name unifdef -a ! -name mk_elfconfig -a \( -type f -o -type l \) -print
16 } 16 }
17 17
18 mkdir -p "${destdir}" 18 mkdir -p "${destdir}"
19 19
20 ( 20 (
21 cd "${srctree}" 21 cd "${srctree}"
22 echo Makefile 22 echo Makefile
23 find "arch/${SRCARCH}" -maxdepth 1 -na 23 find "arch/${SRCARCH}" -maxdepth 1 -name 'Makefile*'
24 find "arch/${SRCARCH}" -name generated 24 find "arch/${SRCARCH}" -name generated -prune -o -name include -type d -print
25 find "arch/${SRCARCH}" -name Kbuild.pl 25 find "arch/${SRCARCH}" -name Kbuild.platforms -o -name Platform
26 find include \( -name config -o -name 26 find include \( -name config -o -name generated \) -prune -o \( -type f -o -type l \) -print
27 find_in_scripts 27 find_in_scripts
28 ) | tar -c -f - -C "${srctree}" -T - | tar -xf 28 ) | tar -c -f - -C "${srctree}" -T - | tar -xf - -C "${destdir}"
29 29
30 { 30 {
31 if is_enabled CONFIG_OBJTOOL; then 31 if is_enabled CONFIG_OBJTOOL; then
32 echo tools/objtool/objtool 32 echo tools/objtool/objtool
33 fi 33 fi
34 34
35 echo Module.symvers 35 echo Module.symvers
36 echo "arch/${SRCARCH}/include/generate 36 echo "arch/${SRCARCH}/include/generated"
37 echo include/config/auto.conf 37 echo include/config/auto.conf
38 echo include/config/kernel.release 38 echo include/config/kernel.release
39 echo include/generated 39 echo include/generated
40 find_in_scripts 40 find_in_scripts
41 41
42 if is_enabled CONFIG_GCC_PLUGINS; then 42 if is_enabled CONFIG_GCC_PLUGINS; then
43 find scripts/gcc-plugins -name 43 find scripts/gcc-plugins -name '*.so'
44 fi 44 fi
45 } | tar -c -f - -T - | tar -xf - -C "${destdir 45 } | tar -c -f - -T - | tar -xf - -C "${destdir}"
46 46
47 # When ${CC} and ${HOSTCC} differ, rebuild hos 47 # When ${CC} and ${HOSTCC} differ, rebuild host programs using ${CC}.
48 # 48 #
49 # This caters to host programs that participat 49 # This caters to host programs that participate in Kbuild. objtool and
50 # resolve_btfids are out of scope. 50 # resolve_btfids are out of scope.
51 if [ "${CC}" != "${HOSTCC}" ]; then 51 if [ "${CC}" != "${HOSTCC}" ]; then
52 echo "Rebuilding host programs with ${ 52 echo "Rebuilding host programs with ${CC}..."
53 53
54 cat <<-'EOF' > "${destdir}/Kbuild" 54 cat <<-'EOF' > "${destdir}/Kbuild"
55 subdir-y := scripts 55 subdir-y := scripts
56 EOF 56 EOF
57 57
58 # HOSTCXX is not overridden. The C++ c 58 # HOSTCXX is not overridden. The C++ compiler is used to build:
59 # - scripts/kconfig/qconf, which is un 59 # - scripts/kconfig/qconf, which is unneeded for external module builds
60 # - GCC plugins, which will not work o 60 # - GCC plugins, which will not work on the installed system even after
61 # being rebuilt. 61 # being rebuilt.
62 # 62 #
63 # Use the single-target build to avoid 63 # Use the single-target build to avoid the modpost invocation, which
64 # would overwrite Module.symvers. 64 # would overwrite Module.symvers.
65 "${MAKE}" HOSTCC="${CC}" KBUILD_EXTMOD 65 "${MAKE}" HOSTCC="${CC}" KBUILD_EXTMOD="${destdir}" scripts/
66 66
67 cat <<-'EOF' > "${destdir}/scripts/Kb 67 cat <<-'EOF' > "${destdir}/scripts/Kbuild"
68 subdir-y := basic 68 subdir-y := basic
69 hostprogs-always-y := mod/modpost 69 hostprogs-always-y := mod/modpost
70 mod/modpost-objs := $(addprefix mod/, 70 mod/modpost-objs := $(addprefix mod/, modpost.o file2alias.o sumversion.o symsearch.o)
71 EOF 71 EOF
72 72
73 # Run once again to rebuild scripts/ba 73 # Run once again to rebuild scripts/basic/ and scripts/mod/modpost.
74 "${MAKE}" HOSTCC="${CC}" KBUILD_EXTMOD 74 "${MAKE}" HOSTCC="${CC}" KBUILD_EXTMOD="${destdir}" scripts/
75 75
76 rm -f "${destdir}/Kbuild" "${destdir}/ 76 rm -f "${destdir}/Kbuild" "${destdir}/scripts/Kbuild"
77 fi 77 fi
78 78
79 find "${destdir}" \( -name '.*.cmd' -o -name ' 79 find "${destdir}" \( -name '.*.cmd' -o -name '*.o' \) -delete
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