2019-05-19 20:07:45 +08:00
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# SPDX-License-Identifier: GPL-2.0-only
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2018-07-12 19:52:24 +08:00
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ifndef allow-override
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include ../scripts/Makefile.include
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include ../scripts/utilities.mak
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else
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# Assume Makefile.helpers is being run from bpftool/Documentation
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# subdirectory. Go up two more directories to fetch bpf.h header and
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# associated script.
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UP2DIR := ../../
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endif
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INSTALL ?= install
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RM ?= rm -f
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RMDIR ?= rmdir --ignore-fail-on-non-empty
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ifeq ($(V),1)
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Q =
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else
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Q = @
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endif
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prefix ?= /usr/local
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mandir ?= $(prefix)/man
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man7dir = $(mandir)/man7
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HELPERS_RST = bpf-helpers.rst
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MAN7_RST = $(HELPERS_RST)
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_DOC_MAN7 = $(patsubst %.rst,%.7,$(MAN7_RST))
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DOC_MAN7 = $(addprefix $(OUTPUT),$(_DOC_MAN7))
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helpers: man7
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man7: $(DOC_MAN7)
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RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
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$(OUTPUT)$(HELPERS_RST): $(UP2DIR)../../include/uapi/linux/bpf.h
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$(QUIET_GEN)$(UP2DIR)../../scripts/bpf_helpers_doc.py --filename $< > $@
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$(OUTPUT)%.7: $(OUTPUT)%.rst
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ifndef RST2MAN_DEP
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$(error "rst2man not found, but required to generate man pages")
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endif
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$(QUIET_GEN)rst2man $< > $@
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helpers-clean:
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$(call QUIET_CLEAN, eBPF_helpers-manpage)
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$(Q)$(RM) $(DOC_MAN7) $(OUTPUT)$(HELPERS_RST)
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helpers-install: helpers
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$(call QUIET_INSTALL, eBPF_helpers-manpage)
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$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(man7dir)
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$(Q)$(INSTALL) -m 644 $(DOC_MAN7) $(DESTDIR)$(man7dir)
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helpers-uninstall:
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$(call QUIET_UNINST, eBPF_helpers-manpage)
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$(Q)$(RM) $(addprefix $(DESTDIR)$(man7dir)/,$(_DOC_MAN7))
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$(Q)$(RMDIR) $(DESTDIR)$(man7dir)
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.PHONY: helpers helpers-clean helpers-install helpers-uninstall
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