1# SPDX-License-Identifier: GPL-2.0-only
2include ../../../scripts/Makefile.include
3include ../../../scripts/utilities.mak
4
5INSTALL ?= install
6RM ?= rm -f
7RMDIR ?= rmdir --ignore-fail-on-non-empty
8
9ifeq ($(V),1)
10  Q =
11else
12  Q = @
13endif
14
15prefix ?= /usr/local
16mandir ?= $(prefix)/man
17man8dir = $(mandir)/man8
18
19# Load targets for building eBPF helpers man page.
20include ../../Makefile.helpers
21
22MAN8_RST = $(wildcard bpftool*.rst)
23
24_DOC_MAN8 = $(patsubst %.rst,%.8,$(MAN8_RST))
25DOC_MAN8 = $(addprefix $(OUTPUT),$(_DOC_MAN8))
26
27man: man8 helpers
28man8: $(DOC_MAN8)
29
30RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
31RST2MAN_OPTS += --verbose
32
33list_pages = $(sort $(basename $(filter-out $(1),$(MAN8_RST))))
34see_also = $(subst " ",, \
35	"\n" \
36	"SEE ALSO\n" \
37	"========\n" \
38	"\t**bpf**\ (2),\n" \
39	"\t**bpf-helpers**\\ (7)" \
40	$(foreach page,$(call list_pages,$(1)),",\n\t**$(page)**\\ (8)") \
41	"\n")
42
43$(OUTPUT)%.8: %.rst
44ifndef RST2MAN_DEP
45	$(error "rst2man not found, but required to generate man pages")
46endif
47	$(QUIET_GEN)( cat $< ; printf "%b" $(call see_also,$<) ) | rst2man $(RST2MAN_OPTS) > $@
48
49clean: helpers-clean
50	$(call QUIET_CLEAN, Documentation)
51	$(Q)$(RM) $(DOC_MAN8)
52
53install: man helpers-install
54	$(call QUIET_INSTALL, Documentation-man)
55	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(man8dir)
56	$(Q)$(INSTALL) -m 644 $(DOC_MAN8) $(DESTDIR)$(man8dir)
57
58uninstall: helpers-uninstall
59	$(call QUIET_UNINST, Documentation-man)
60	$(Q)$(RM) $(addprefix $(DESTDIR)$(man8dir)/,$(_DOC_MAN8))
61	$(Q)$(RMDIR) $(DESTDIR)$(man8dir)
62
63.PHONY: man man8 clean install uninstall
64.DEFAULT_GOAL := man
65