|  | ifndef allow-override | 
|  | include ../scripts/Makefile.include | 
|  | include ../scripts/utilities.mak | 
|  | else | 
|  | # Assume Makefile.helpers is being run from bpftool/Documentation | 
|  | # subdirectory. Go up two more directories to fetch bpf.h header and | 
|  | # associated script. | 
|  | UP2DIR := ../../ | 
|  | endif | 
|  |  | 
|  | 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 | 
|  | man7dir = $(mandir)/man7 | 
|  |  | 
|  | HELPERS_RST = bpf-helpers.rst | 
|  | MAN7_RST = $(HELPERS_RST) | 
|  |  | 
|  | _DOC_MAN7 = $(patsubst %.rst,%.7,$(MAN7_RST)) | 
|  | DOC_MAN7 = $(addprefix $(OUTPUT),$(_DOC_MAN7)) | 
|  |  | 
|  | helpers: man7 | 
|  | man7: $(DOC_MAN7) | 
|  |  | 
|  | RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null) | 
|  |  | 
|  | $(OUTPUT)$(HELPERS_RST): $(UP2DIR)../../include/uapi/linux/bpf.h | 
|  | $(QUIET_GEN)$(UP2DIR)../../scripts/bpf_helpers_doc.py --filename $< > $@ | 
|  |  | 
|  | $(OUTPUT)%.7: $(OUTPUT)%.rst | 
|  | ifndef RST2MAN_DEP | 
|  | $(error "rst2man not found, but required to generate man pages") | 
|  | endif | 
|  | $(QUIET_GEN)rst2man $< > $@ | 
|  |  | 
|  | helpers-clean: | 
|  | $(call QUIET_CLEAN, eBPF_helpers-manpage) | 
|  | $(Q)$(RM) $(DOC_MAN7) $(OUTPUT)$(HELPERS_RST) | 
|  |  | 
|  | helpers-install: helpers | 
|  | $(call QUIET_INSTALL, eBPF_helpers-manpage) | 
|  | $(Q)$(INSTALL) -d -m 755 $(DESTDIR)$(man7dir) | 
|  | $(Q)$(INSTALL) -m 644 $(DOC_MAN7) $(DESTDIR)$(man7dir) | 
|  |  | 
|  | helpers-uninstall: | 
|  | $(call QUIET_UNINST, eBPF_helpers-manpage) | 
|  | $(Q)$(RM) $(addprefix $(DESTDIR)$(man7dir)/,$(_DOC_MAN7)) | 
|  | $(Q)$(RMDIR) $(DESTDIR)$(man7dir) | 
|  |  | 
|  | .PHONY: helpers helpers-clean helpers-install helpers-uninstall |