# SPDX-License-Identifier: GPL-2.0-only include ../../../scripts/Makefile.includeinclude ../../../scripts/utilities.mak INSTALL ?= installRM ?= rm -fRMDIR ?= rmdir --ignore-fail-on-non-empty prefix ?= /usr/localmandir ?= $(prefix)/manman2dir = $(mandir)/man2man7dir = $(mandir)/man7 SYSCALL_RST = bpf-syscall.rstMAN2_RST = $(SYSCALL_RST) HELPERS_RST = bpf-helpers.rstMAN7_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: man2helpers: man7man2: $(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# $2 - man page section to generate the troff filedefine DOCS_RULES =$(OUTPUT)bpf-$1.rst: ../../../../include/uapi/linux/bpf.h	$$(QUIET_GEN)../../../../scripts/bpf_doc.py $1 \		--filename $$< > $$@ $(OUTPUT)%.$2: $(OUTPUT)%.rstifndef RST2MAN_DEP	$$(error "rst2man not found, but required to generate man pages")endif	$$(QUIET_GEN)rst2man --exit-status=1 $$< > $$@.tmp	$$(QUIET_GEN)mv $$@.tmp $$@ 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-$1endef # Create the make targets to generate manual pages by name and section$(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