1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
# SPDX-License-Identifier: GPL-2.0-only
include ../../../scripts/Makefile.include
include ../../../scripts/utilities.mak
INSTALL ?= install
RM ?= rm -f
RMDIR ?= rmdir --ignore-fail-on-non-empty
ifeq ($(V),1)
Q =
else
Q = @
endif
prefix ?= /usr/local
mandir ?= $(prefix)/man
man2dir = $(mandir)/man2
man7dir = $(mandir)/man7
SYSCALL_RST = bpf-syscall.rst
MAN2_RST = $(SYSCALL_RST)
HELPERS_RST = bpf-helpers.rst
MAN7_RST = $(HELPERS_RST)
_DOC_MAN2 = $(patsubst %.rst,%.2,$(MAN2_RST))
DOC_MAN2 = $(addprefix $(OUTPUT),$(_DOC_MAN2))
_DOC_MAN7 = $(patsubst %.rst,%.7,$(MAN7_RST))
DOC_MAN7 = $(addprefix $(OUTPUT),$(_DOC_MAN7))
DOCTARGETS := helpers syscall
docs: $(DOCTARGETS)
syscall: man2
helpers: man7
man2: $(DOC_MAN2)
man7: $(DOC_MAN7)
RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
# Configure make rules for the man page bpf-$1.$2.
# $1 - target for scripts/bpf_doc.py
# $2 - man page section to generate the troff file
define DOCS_RULES =
$(OUTPUT)bpf-$1.rst: ../../../../include/uapi/linux/bpf.h
$$(QUIET_GEN)../../../../scripts/bpf_doc.py $1 \
--filename $$< > $$@
$(OUTPUT)%.$2: $(OUTPUT)%.rst
ifndef RST2MAN_DEP
$$(error "rst2man not found, but required to generate man pages")
endif
$$(QUIET_GEN)rst2man $$< > $$@
docs-clean-$1:
$$(call QUIET_CLEAN, eBPF_$1-manpage)
$(Q)$(RM) $$(DOC_MAN$2) $(OUTPUT)bpf-$1.rst
docs-install-$1: docs
$$(call QUIET_INSTALL, eBPF_$1-manpage)
$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$$(man$2dir)
$(Q)$(INSTALL) -m 644 $$(DOC_MAN$2) $(DESTDIR)$$(man$2dir)
docs-uninstall-$1:
$$(call QUIET_UNINST, eBPF_$1-manpage)
$(Q)$(RM) $$(addprefix $(DESTDIR)$$(man$2dir)/,$$(_DOC_MAN$2))
$(Q)$(RMDIR) $(DESTDIR)$$(man$2dir)
.PHONY: $1 docs-clean-$1 docs-install-$1 docs-uninstall-$1
endef
# Create the make targets to generate manual pages by name and section
$(eval $(call DOCS_RULES,helpers,7))
$(eval $(call DOCS_RULES,syscall,2))
docs-clean: $(foreach doctarget,$(DOCTARGETS), docs-clean-$(doctarget))
docs-install: $(foreach doctarget,$(DOCTARGETS), docs-install-$(doctarget))
docs-uninstall: $(foreach doctarget,$(DOCTARGETS), docs-uninstall-$(doctarget))
.PHONY: docs docs-clean docs-install docs-uninstall man2 man7
|
