diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/bpf/Makefile | 132 | ||||
| -rw-r--r-- | tools/bpf/Makefile.helpers | 60 |
2 files changed, 192 insertions, 0 deletions
diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile new file mode 100644 index 000000000..b11cfc86a --- /dev/null +++ b/tools/bpf/Makefile @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: GPL-2.0 +include ../scripts/Makefile.include + +prefix ?= /usr/local + +LEX = flex +YACC = bison +MAKE = make +INSTALL ?= install + +CFLAGS += -Wall -O2 +CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi \ + -I$(srctree)/tools/include + +# This will work when bpf is built in tools env. where srctree +# isn't set and when invoked from selftests build, where srctree +# is set to ".". building_out_of_srctree is undefined for in srctree +# builds +ifeq ($(srctree),) +update_srctree := 1 +endif +ifndef building_out_of_srctree +update_srctree := 1 +endif +ifeq ($(update_srctree),1) +srctree := $(patsubst %/,%,$(dir $(CURDIR))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +endif + +ifeq ($(V),1) + Q = +else + Q = @ +endif + +FEATURE_USER = .bpf +FEATURE_TESTS = libbfd disassembler-four-args +FEATURE_DISPLAY = libbfd disassembler-four-args + +check_feat := 1 +NON_CHECK_FEAT_TARGETS := clean bpftool_clean runqslower_clean resolve_btfids_clean +ifdef MAKECMDGOALS +ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),) + check_feat := 0 +endif +endif + +ifeq ($(check_feat),1) +ifeq ($(FEATURES_DUMP),) +include $(srctree)/tools/build/Makefile.feature +else +include $(FEATURES_DUMP) +endif +endif + +ifeq ($(feature-disassembler-four-args), 1) +CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE +endif + +$(OUTPUT)%.yacc.c: $(srctree)/tools/bpf/%.y + $(QUIET_BISON)$(YACC) -o $@ -d $< + +$(OUTPUT)%.lex.c: $(srctree)/tools/bpf/%.l + $(QUIET_FLEX)$(LEX) -o $@ $< + +$(OUTPUT)%.o: $(srctree)/tools/bpf/%.c + $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< + +$(OUTPUT)%.yacc.o: $(OUTPUT)%.yacc.c + $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< +$(OUTPUT)%.lex.o: $(OUTPUT)%.lex.c + $(QUIET_CC)$(CC) $(CFLAGS) -c -o $@ $< + +PROGS = $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg $(OUTPUT)bpf_asm + +all: $(PROGS) bpftool runqslower + +$(OUTPUT)bpf_jit_disasm: CFLAGS += -DPACKAGE='bpf_jit_disasm' +$(OUTPUT)bpf_jit_disasm: $(OUTPUT)bpf_jit_disasm.o + $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lopcodes -lbfd -ldl + +$(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o + $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ -lreadline + +$(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o + $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ + +$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c +$(OUTPUT)bpf_exp.yacc.o: $(OUTPUT)bpf_exp.yacc.c +$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.lex.c + +clean: bpftool_clean runqslower_clean resolve_btfids_clean + $(call QUIET_CLEAN, bpf-progs) + $(Q)$(RM) -r -- $(OUTPUT)*.o $(OUTPUT)bpf_jit_disasm $(OUTPUT)bpf_dbg \ + $(OUTPUT)bpf_asm $(OUTPUT)bpf_exp.yacc.* $(OUTPUT)bpf_exp.lex.* + $(call QUIET_CLEAN, core-gen) + $(Q)$(RM) -- $(OUTPUT)FEATURE-DUMP.bpf + $(Q)$(RM) -r -- $(OUTPUT)feature + +install: $(PROGS) bpftool_install + $(call QUIET_INSTALL, bpf_jit_disasm) + $(Q)$(INSTALL) -m 0755 -d $(DESTDIR)$(prefix)/bin + $(Q)$(INSTALL) $(OUTPUT)bpf_jit_disasm $(DESTDIR)$(prefix)/bin/bpf_jit_disasm + $(call QUIET_INSTALL, bpf_dbg) + $(Q)$(INSTALL) $(OUTPUT)bpf_dbg $(DESTDIR)$(prefix)/bin/bpf_dbg + $(call QUIET_INSTALL, bpf_asm) + $(Q)$(INSTALL) $(OUTPUT)bpf_asm $(DESTDIR)$(prefix)/bin/bpf_asm + +bpftool: + $(call descend,bpftool) + +bpftool_install: + $(call descend,bpftool,install) + +bpftool_clean: + $(call descend,bpftool,clean) + +runqslower: + $(call descend,runqslower) + +runqslower_clean: + $(call descend,runqslower,clean) + +resolve_btfids: + $(call descend,resolve_btfids) + +resolve_btfids_clean: + $(call descend,resolve_btfids,clean) + +.PHONY: all install clean bpftool bpftool_install bpftool_clean \ + runqslower runqslower_clean \ + resolve_btfids resolve_btfids_clean diff --git a/tools/bpf/Makefile.helpers b/tools/bpf/Makefile.helpers new file mode 100644 index 000000000..854d08402 --- /dev/null +++ b/tools/bpf/Makefile.helpers @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: GPL-2.0-only +ifndef allow-override + include ../scripts/Makefile.include + include ../scripts/utilities.mak +else + # Assume Makefile.helpers is being run from bpftool/Documentation + # subdirectory. Go up two more directories to fetch bpf.h header and + # associated script. + UP2DIR := ../../ +endif + +INSTALL ?= install +RM ?= rm -f +RMDIR ?= rmdir --ignore-fail-on-non-empty + +ifeq ($(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 |