1 files changed, 83 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/Makefile.docs b/tools/testing/selftests/bpf/Makefile.docs
new file mode 100644
index 000000000000..eb6a4fea8c79
--- /dev/null
+++ b/tools/testing/selftests/bpf/Makefile.docs
@@ -0,0 +1,83 @@
+# 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
+	$$(QUIET_GEN)rst2man --exit-status=1 $$< > $$@.tmp
+	$$(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-$1
+endef
+
+# Create the make targets to generate manual pages by name and section
+$(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