84 lines
2.2 KiB
Makefile
84 lines
2.2 KiB
Makefile
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# SPDX-License-Identifier: GPL-2.0-only
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include ../../../scripts/Makefile.include
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include ../../../scripts/utilities.mak
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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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man2dir = $(mandir)/man2
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man7dir = $(mandir)/man7
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SYSCALL_RST = bpf-syscall.rst
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MAN2_RST = $(SYSCALL_RST)
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HELPERS_RST = bpf-helpers.rst
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MAN7_RST = $(HELPERS_RST)
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_DOC_MAN2 = $(patsubst %.rst,%.2,$(MAN2_RST))
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DOC_MAN2 = $(addprefix $(OUTPUT),$(_DOC_MAN2))
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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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DOCTARGETS := helpers syscall
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docs: $(DOCTARGETS)
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syscall: man2
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helpers: man7
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man2: $(DOC_MAN2)
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man7: $(DOC_MAN7)
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RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
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# Configure make rules for the man page bpf-$1.$2.
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# $1 - target for scripts/bpf_doc.py
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# $2 - man page section to generate the troff file
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define DOCS_RULES =
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$(OUTPUT)bpf-$1.rst: ../../../../include/uapi/linux/bpf.h
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$$(QUIET_GEN)../../../../scripts/bpf_doc.py $1 \
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--filename $$< > $$@
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$(OUTPUT)%.$2: $(OUTPUT)%.rst
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ifndef RST2MAN_DEP
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$$(error "rst2man not found, but required to generate man pages")
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endif
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$$(QUIET_GEN)rst2man --exit-status=1 $$< > $$@.tmp
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$$(QUIET_GEN)mv $$@.tmp $$@
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docs-clean-$1:
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$$(call QUIET_CLEAN, eBPF_$1-manpage)
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$(Q)$(RM) $$(DOC_MAN$2) $(OUTPUT)bpf-$1.rst
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docs-install-$1: docs
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$$(call QUIET_INSTALL, eBPF_$1-manpage)
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$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$$(man$2dir)
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$(Q)$(INSTALL) -m 644 $$(DOC_MAN$2) $(DESTDIR)$$(man$2dir)
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docs-uninstall-$1:
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$$(call QUIET_UNINST, eBPF_$1-manpage)
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$(Q)$(RM) $$(addprefix $(DESTDIR)$$(man$2dir)/,$$(_DOC_MAN$2))
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$(Q)$(RMDIR) $(DESTDIR)$$(man$2dir)
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.PHONY: $1 docs-clean-$1 docs-install-$1 docs-uninstall-$1
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endef
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# Create the make targets to generate manual pages by name and section
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$(eval $(call DOCS_RULES,helpers,7))
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$(eval $(call DOCS_RULES,syscall,2))
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docs-clean: $(foreach doctarget,$(DOCTARGETS), docs-clean-$(doctarget))
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docs-install: $(foreach doctarget,$(DOCTARGETS), docs-install-$(doctarget))
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docs-uninstall: $(foreach doctarget,$(DOCTARGETS), docs-uninstall-$(doctarget))
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.PHONY: docs docs-clean docs-install docs-uninstall man2 man7
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