1# SPDX-License-Identifier: GPL-2.0-only
2# Makefile for the different targets used to generate full packages of a kernel
3
4include $(srctree)/scripts/Kbuild.include
5include $(srctree)/scripts/Makefile.lib
6
7# Git
8# ---------------------------------------------------------------------------
9
10filechk_HEAD = git -C $(srctree) rev-parse --verify HEAD 2>/dev/null
11
12.tmp_HEAD: check-git FORCE
13	$(call filechk,HEAD)
14
15PHONY += check-git
16check-git:
17	@if ! $(srctree)/scripts/check-git; then \
18		echo >&2 "error: creating source package requires git repository"; \
19		false; \
20	fi
21
22git-config-tar.gz   = -c tar.tar.gz.command="$(KGZIP)"
23git-config-tar.bz2  = -c tar.tar.bz2.command="$(KBZIP2)"
24git-config-tar.lzma = -c tar.tar.lzma.command="$(LZMA)"
25git-config-tar.xz   = -c tar.tar.xz.command="$(XZ)"
26git-config-tar.zst  = -c tar.tar.zst.command="$(ZSTD)"
27
28quiet_cmd_archive = ARCHIVE $@
29      cmd_archive = git -C $(srctree) $(git-config-tar$(suffix $@)) archive \
30                    --output=$$(realpath $@) $(archive-args)
31
32suffix-gzip  := .gz
33suffix-bzip2 := .bz2
34suffix-lzma  := .lzma
35suffix-xz    := .xz
36
37# Linux source tarball
38# ---------------------------------------------------------------------------
39
40linux-tarballs := $(addprefix linux, .tar.gz .tar.bz2 .tar.lzma .tar.xz)
41
42targets += $(linux-tarballs)
43$(linux-tarballs): archive-args = --prefix=linux/ $$(cat $<)
44$(linux-tarballs): .tmp_HEAD FORCE
45	$(call if_changed,archive)
46
47# rpm-pkg srcrpm-pkg binrpm-pkg
48# ---------------------------------------------------------------------------
49
50quiet_cmd_mkspec = GEN     $@
51      cmd_mkspec = $(srctree)/scripts/package/mkspec $@
52
53rpmbuild/SPECS/kernel.spec: FORCE
54	$(call cmd,mkspec)
55
56PHONY += rpm-sources
57rpm-sources: linux.tar.gz
58	$(Q)mkdir -p rpmbuild/SOURCES
59	$(Q)ln -f linux.tar.gz rpmbuild/SOURCES/linux.tar.gz
60	$(Q)cp $(KCONFIG_CONFIG) rpmbuild/SOURCES/config
61	$(Q)$(srctree)/scripts/package/gen-diff-patch rpmbuild/SOURCES/diff.patch
62
63PHONY += rpm-pkg srcrpm-pkg binrpm-pkg
64
65rpm-pkg:    private build-type := a
66srcrpm-pkg: private build-type := s
67binrpm-pkg: private build-type := b
68
69rpm-pkg srcrpm-pkg: rpm-sources
70rpm-pkg srcrpm-pkg binrpm-pkg: rpmbuild/SPECS/kernel.spec
71	+$(strip rpmbuild -b$(build-type) rpmbuild/SPECS/kernel.spec \
72	--define='_topdir $(abspath rpmbuild)' \
73	$(if $(filter a b, $(build-type)), \
74		--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \
75		$$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \
76	$(RPMOPTS))
77
78# deb-pkg srcdeb-pkg bindeb-pkg
79# ---------------------------------------------------------------------------
80
81KDEB_SOURCE_COMPRESS ?= gzip
82
83supported-deb-source-compress := gzip bzip2 lzma xz
84
85PHONY += linux.tar.unsupported-deb-src-compress
86linux.tar.unsupported-deb-src-compress:
87	@echo "error: KDEB_SOURCE_COMPRESS=$(KDEB_SOURCE_COMPRESS) is not supported. The supported values are: $(supported-deb-source-compress)" >&2
88	@false
89
90debian-orig-suffix := \
91    $(strip $(if $(filter $(supported-deb-source-compress), $(KDEB_SOURCE_COMPRESS)), \
92    $(suffix-$(KDEB_SOURCE_COMPRESS)),.unsupported-deb-src-compress))
93
94quiet_cmd_debianize = GEN     $@
95      cmd_debianize = $(srctree)/scripts/package/mkdebian $(mkdebian-opts)
96
97debian: FORCE
98	$(call cmd,debianize)
99
100PHONY += debian-orig
101debian-orig: private source = $(shell dpkg-parsechangelog -S Source)
102debian-orig: private version = $(shell dpkg-parsechangelog -S Version | sed 's/-[^-]*$$//')
103debian-orig: private orig-name = $(source)_$(version).orig.tar$(debian-orig-suffix)
104debian-orig: mkdebian-opts = --need-source
105debian-orig: linux.tar$(debian-orig-suffix) debian
106	$(Q)if [ "$(df  --output=target .. 2>/dev/null)" = "$(df --output=target $< 2>/dev/null)" ]; then \
107		ln -f $< ../$(orig-name); \
108	else \
109		cp $< ../$(orig-name); \
110	fi
111
112PHONY += deb-pkg srcdeb-pkg bindeb-pkg
113
114deb-pkg:    private build-type := source,binary
115srcdeb-pkg: private build-type := source
116bindeb-pkg: private build-type := binary
117
118deb-pkg srcdeb-pkg: debian-orig
119bindeb-pkg: debian
120deb-pkg srcdeb-pkg bindeb-pkg:
121	+$(strip dpkg-buildpackage \
122	--build=$(build-type) --no-pre-clean --unsigned-changes \
123	$(if $(findstring source, $(build-type)), \
124		--unsigned-source --compression=$(KDEB_SOURCE_COMPRESS)) \
125	$(if $(findstring binary, $(build-type)), \
126		-R'$(MAKE) -f debian/rules' -j1 -a$$(cat debian/arch), \
127		--no-check-builddeps) \
128	$(DPKG_FLAGS))
129
130# snap-pkg
131# ---------------------------------------------------------------------------
132PHONY += snap-pkg
133snap-pkg:
134	rm -rf $(objtree)/snap
135	mkdir $(objtree)/snap
136	$(MAKE) clean
137	sed "s@KERNELRELEASE@$(KERNELRELEASE)@; \
138		s@SRCTREE@$(realpath $(srctree))@" \
139		$(srctree)/scripts/package/snapcraft.template > \
140		$(objtree)/snap/snapcraft.yaml
141	cd $(objtree)/snap && \
142	snapcraft --target-arch=$(UTS_MACHINE)
143
144# dir-pkg tar*-pkg - tarball targets
145# ---------------------------------------------------------------------------
146
147tar-install: FORCE
148	$(Q)$(MAKE) -f $(srctree)/Makefile
149	+$(Q)$(srctree)/scripts/package/buildtar $@
150
151compress-tar.gz  = -I "$(KGZIP)"
152compress-tar.bz2 = -I "$(KBZIP2)"
153compress-tar.xz  = -I "$(XZ)"
154compress-tar.zst = -I "$(ZSTD)"
155
156quiet_cmd_tar = TAR     $@
157      cmd_tar = cd $<; tar cf ../$@ $(compress-tar$(suffix $@)) --owner=root --group=root --sort=name *
158
159dir-tarballs := $(addprefix linux-$(KERNELRELEASE)-$(ARCH), .tar .tar.gz .tar.bz2 .tar.xz .tar.zst)
160
161$(dir-tarballs): tar-install
162	$(call cmd,tar)
163
164PHONY += dir-pkg
165dir-pkg: tar-install
166	@echo "Kernel tree successfully created in $<"
167
168PHONY += tar-pkg
169tar-pkg: linux-$(KERNELRELEASE)-$(ARCH).tar
170	@:
171
172tar%-pkg: linux-$(KERNELRELEASE)-$(ARCH).tar.% FORCE
173	@:
174
175# perf-tar*-src-pkg - generate a source tarball with perf source
176# ---------------------------------------------------------------------------
177
178.tmp_perf:
179	$(Q)mkdir .tmp_perf
180
181.tmp_perf/HEAD: .tmp_HEAD | .tmp_perf
182	$(call cmd,copy)
183
184quiet_cmd_perf_version_file = GEN     $@
185      cmd_perf_version_file = cd $(srctree)/tools/perf; util/PERF-VERSION-GEN $(dir $(abspath $@))
186
187# PERF-VERSION-FILE and .tmp_HEAD are independent, but this avoids updating the
188# timestamp of PERF-VERSION-FILE.
189# The best is to fix tools/perf/util/PERF-VERSION-GEN.
190.tmp_perf/PERF-VERSION-FILE: .tmp_HEAD $(srctree)/tools/perf/util/PERF-VERSION-GEN | .tmp_perf
191	$(call cmd,perf_version_file)
192
193perf-archive-args = --add-file=$$(realpath $(word 2, $^)) \
194	--add-file=$$(realpath $(word 3, $^)) \
195	$$(cat $(word 2, $^))^{tree} $$(cat $<)
196
197
198perf-tarballs := $(addprefix perf-$(KERNELVERSION), .tar .tar.gz .tar.bz2 .tar.xz .tar.zst)
199
200targets += $(perf-tarballs)
201$(perf-tarballs): archive-args = --prefix=perf-$(KERNELVERSION)/ $(perf-archive-args)
202$(perf-tarballs): tools/perf/MANIFEST .tmp_perf/HEAD .tmp_perf/PERF-VERSION-FILE FORCE
203	$(call if_changed,archive)
204
205PHONY += perf-tar-src-pkg
206perf-tar-src-pkg: perf-$(KERNELVERSION).tar
207	@:
208
209perf-tar%-src-pkg: perf-$(KERNELVERSION).tar.% FORCE
210	@:
211
212# Help text displayed when executing 'make help'
213# ---------------------------------------------------------------------------
214PHONY += help
215help:
216	@echo '  rpm-pkg             - Build both source and binary RPM kernel packages'
217	@echo '  srcrpm-pkg          - Build only the source kernel RPM package'
218	@echo '  binrpm-pkg          - Build only the binary kernel RPM package'
219	@echo '  deb-pkg             - Build both source and binary deb kernel packages'
220	@echo '  srcdeb-pkg          - Build only the source kernel deb package'
221	@echo '  bindeb-pkg          - Build only the binary kernel deb package'
222	@echo '  snap-pkg            - Build only the binary kernel snap package'
223	@echo '                        (will connect to external hosts)'
224	@echo '  dir-pkg             - Build the kernel as a plain directory structure'
225	@echo '  tar-pkg             - Build the kernel as an uncompressed tarball'
226	@echo '  targz-pkg           - Build the kernel as a gzip compressed tarball'
227	@echo '  tarbz2-pkg          - Build the kernel as a bzip2 compressed tarball'
228	@echo '  tarxz-pkg           - Build the kernel as a xz compressed tarball'
229	@echo '  tarzst-pkg          - Build the kernel as a zstd compressed tarball'
230	@echo '  perf-tar-src-pkg    - Build the perf source tarball with no compression'
231	@echo '  perf-targz-src-pkg  - Build the perf source tarball with gzip compression'
232	@echo '  perf-tarbz2-src-pkg - Build the perf source tarball with bz2 compression'
233	@echo '  perf-tarxz-src-pkg  - Build the perf source tarball with xz compression'
234	@echo '  perf-tarzst-src-pkg - Build the perf source tarball with zst compression'
235
236PHONY += FORCE
237FORCE:
238
239# Read all saved command lines and dependencies for the $(targets) we
240# may be building above, using $(if_changed{,_dep}). As an
241# optimization, we don't need to read them if the target does not
242# exist, we will rebuild anyway in that case.
243
244existing-targets := $(wildcard $(sort $(targets)))
245
246-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
247
248.PHONY: $(PHONY)
249