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linux/tools/perf/util/Build
Namhyung Kim 990a71e904 perf bpf filter: Introduce basic BPF filter expression 
This implements a tiny parser for the filter expressions used for BPF.
Each expression will be converted to struct perf_bpf_filter_expr and
be passed to a BPF map.

For now, I'd like to start with the very basic comparisons like EQ or
GT.  The LHS should be a term for sample data and the RHS is a number.
The expressions are connected by a comma.  For example,

    period > 10000
    ip < 0x1000000000000, cpu == 3

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Song Liu <song@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230314234237.3008956-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-03-15 10:33:37 -03:00

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perf-y += arm64-frame-pointer-unwind-support.o
perf-y += annotate.o
perf-y += block-info.o
perf-y += block-range.o
perf-y += build-id.o
perf-y += cacheline.o
perf-y += config.o
perf-y += copyfile.o
perf-y += ctype.o
perf-y += db-export.o
perf-y += env.o
perf-y += event.o
perf-y += evlist.o
perf-y += evlist-hybrid.o
perf-y += sideband_evlist.o
perf-y += evsel.o
perf-y += evsel_fprintf.o
perf-y += perf_event_attr_fprintf.o
perf-y += evswitch.o
perf-y += find_bit.o
perf-y += get_current_dir_name.o
perf-y += levenshtein.o
perf-y += llvm-utils.o
perf-y += mmap.o
perf-y += memswap.o
perf-y += parse-events.o
perf-y += parse-events-hybrid.o
perf-y += print-events.o
perf-y += tracepoint.o
perf-y += perf_regs.o
perf-y += path.o
perf-y += print_binary.o
perf-y += rlimit.o
perf-y += argv_split.o
perf-y += rbtree.o
perf-y += libstring.o
perf-y += bitmap.o
perf-y += hweight.o
perf-y += smt.o
perf-y += strbuf.o
perf-y += string.o
perf-y += strlist.o
perf-y += strfilter.o
perf-y += top.o
perf-y += usage.o
perf-y += dso.o
perf-y += dsos.o
perf-y += symbol.o
perf-y += symbol_fprintf.o
perf-y += color.o
perf-y += color_config.o
perf-y += metricgroup.o
perf-y += header.o
perf-y += callchain.o
perf-y += values.o
perf-y += debug.o
perf-y += fncache.o
perf-y += machine.o
perf-y += map.o
perf-y += maps.o
perf-y += pstack.o
perf-y += session.o
perf-y += sample-raw.o
perf-y += s390-sample-raw.o
perf-y += amd-sample-raw.o
perf-$(CONFIG_TRACE) += syscalltbl.o
perf-y += ordered-events.o
perf-y += namespaces.o
perf-y += comm.o
perf-y += thread.o
perf-y += thread_map.o
perf-y += parse-events-flex.o
perf-y += parse-events-bison.o
perf-y += pmu.o
perf-y += pmus.o
perf-y += pmu-flex.o
perf-y += pmu-bison.o
perf-y += pmu-hybrid.o
perf-y += svghelper.o
perf-$(CONFIG_LIBTRACEEVENT) += trace-event-info.o
perf-y += trace-event-scripting.o
perf-$(CONFIG_LIBTRACEEVENT) += trace-event.o
perf-$(CONFIG_LIBTRACEEVENT) += trace-event-parse.o
perf-$(CONFIG_LIBTRACEEVENT) += trace-event-read.o
perf-y += sort.o
perf-y += hist.o
perf-y += util.o
perf-y += cpumap.o
perf-y += affinity.o
perf-y += cputopo.o
perf-y += cgroup.o
perf-y += target.o
perf-y += rblist.o
perf-y += intlist.o
perf-y += vdso.o
perf-y += counts.o
perf-y += stat.o
perf-y += stat-shadow.o
perf-y += stat-display.o
perf-y += perf_api_probe.o
perf-y += record.o
perf-y += srcline.o
perf-y += srccode.o
perf-y += synthetic-events.o
perf-y += data.o
perf-y += tsc.o
perf-y += cloexec.o
perf-y += call-path.o
perf-y += rwsem.o
perf-y += thread-stack.o
perf-y += spark.o
perf-y += topdown.o
perf-y += iostat.o
perf-y += stream.o
perf-$(CONFIG_AUXTRACE) += auxtrace.o
perf-$(CONFIG_AUXTRACE) += intel-pt-decoder/
perf-$(CONFIG_AUXTRACE) += intel-pt.o
perf-$(CONFIG_AUXTRACE) += intel-bts.o
perf-$(CONFIG_AUXTRACE) += arm-spe.o
perf-$(CONFIG_AUXTRACE) += arm-spe-decoder/
perf-$(CONFIG_AUXTRACE) += hisi-ptt.o
perf-$(CONFIG_AUXTRACE) += hisi-ptt-decoder/
perf-$(CONFIG_AUXTRACE) += s390-cpumsf.o
ifdef CONFIG_LIBOPENCSD
perf-$(CONFIG_AUXTRACE) += cs-etm.o
perf-$(CONFIG_AUXTRACE) += cs-etm-decoder/
endif
perf-$(CONFIG_AUXTRACE) += cs-etm-base.o
perf-y += parse-branch-options.o
perf-y += dump-insn.o
perf-y += parse-regs-options.o
perf-y += parse-sublevel-options.o
perf-y += term.o
perf-y += help-unknown-cmd.o
perf-y += dlfilter.o
perf-y += mem-events.o
perf-y += vsprintf.o
perf-y += units.o
perf-y += time-utils.o
perf-y += expr-flex.o
perf-y += expr-bison.o
perf-y += expr.o
perf-y += branch.o
perf-y += mem2node.o
perf-y += clockid.o
perf-y += list_sort.o
perf-y += mutex.o
perf-$(CONFIG_LIBBPF) += bpf-loader.o
perf-$(CONFIG_LIBBPF) += bpf_map.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_counter.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_counter_cgroup.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_ftrace.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_off_cpu.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf-filter.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf-filter-flex.o
perf-$(CONFIG_PERF_BPF_SKEL) += bpf-filter-bison.o
ifeq ($(CONFIG_LIBTRACEEVENT),y)
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_lock_contention.o
endif
ifeq ($(CONFIG_LIBTRACEEVENT),y)
perf-$(CONFIG_PERF_BPF_SKEL) += bpf_kwork.o
endif
perf-$(CONFIG_BPF_PROLOGUE) += bpf-prologue.o
perf-$(CONFIG_LIBELF) += symbol-elf.o
perf-$(CONFIG_LIBELF) += probe-file.o
perf-$(CONFIG_LIBELF) += probe-event.o
ifdef CONFIG_LIBBPF_DYNAMIC
hashmap := 1
endif
ifndef CONFIG_LIBBPF
hashmap := 1
endif
ifdef hashmap
perf-y += hashmap.o
endif
ifndef CONFIG_LIBELF
perf-y += symbol-minimal.o
endif
ifndef CONFIG_SETNS
perf-y += setns.o
endif
perf-$(CONFIG_DWARF) += probe-finder.o
perf-$(CONFIG_DWARF) += dwarf-aux.o
perf-$(CONFIG_DWARF) += dwarf-regs.o
perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
perf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind-local.o
perf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
perf-$(CONFIG_LIBUNWIND_X86) += libunwind/x86_32.o
perf-$(CONFIG_LIBUNWIND_AARCH64) += libunwind/arm64.o
ifeq ($(CONFIG_LIBTRACEEVENT),y)
perf-$(CONFIG_LIBBABELTRACE) += data-convert-bt.o
endif
perf-y += data-convert-json.o
perf-y += scripting-engines/
perf-$(CONFIG_ZLIB) += zlib.o
perf-$(CONFIG_LZMA) += lzma.o
perf-$(CONFIG_ZSTD) += zstd.o
perf-$(CONFIG_LIBCAP) += cap.o
perf-y += demangle-cxx.o
perf-y += demangle-ocaml.o
perf-y += demangle-java.o
perf-y += demangle-rust.o
ifdef CONFIG_JITDUMP
perf-$(CONFIG_LIBELF) += jitdump.o
perf-$(CONFIG_LIBELF) += genelf.o
perf-$(CONFIG_DWARF) += genelf_debug.o
endif
perf-y += perf-hooks.o
perf-$(CONFIG_LIBBPF) += bpf-event.o
perf-$(CONFIG_LIBBPF) += bpf-utils.o
perf-$(CONFIG_CXX) += c++/
perf-$(CONFIG_LIBPFM4) += pfm.o
CFLAGS_config.o += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_llvm-utils.o += -DLIBBPF_INCLUDE_DIR="BUILD_STR($(libbpf_include_dir_SQ))"
# avoid compiler warnings in 32-bit mode
CFLAGS_genelf_debug.o += -Wno-packed
$(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-flex.h: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
$(call rule_mkdir)
$(Q)$(call echo-cmd,flex)$(FLEX) -o $(OUTPUT)util/parse-events-flex.c \
--header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) $<
$(OUTPUT)util/parse-events-bison.c $(OUTPUT)util/parse-events-bison.h: util/parse-events.y
$(call rule_mkdir)
$(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) $(BISON_FILE_PREFIX_MAP) \
-o $(OUTPUT)util/parse-events-bison.c -p parse_events_
$(OUTPUT)util/expr-flex.c $(OUTPUT)util/expr-flex.h: util/expr.l $(OUTPUT)util/expr-bison.c
$(call rule_mkdir)
$(Q)$(call echo-cmd,flex)$(FLEX) -o $(OUTPUT)util/expr-flex.c \
--header-file=$(OUTPUT)util/expr-flex.h $(PARSER_DEBUG_FLEX) $<
$(OUTPUT)util/expr-bison.c $(OUTPUT)util/expr-bison.h: util/expr.y
$(call rule_mkdir)
$(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) $(BISON_FILE_PREFIX_MAP) \
-o $(OUTPUT)util/expr-bison.c -p expr_
$(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-flex.h: util/pmu.l $(OUTPUT)util/pmu-bison.c
$(call rule_mkdir)
$(Q)$(call echo-cmd,flex)$(FLEX) -o $(OUTPUT)util/pmu-flex.c \
--header-file=$(OUTPUT)util/pmu-flex.h $(PARSER_DEBUG_FLEX) $<
$(OUTPUT)util/pmu-bison.c $(OUTPUT)util/pmu-bison.h: util/pmu.y
$(call rule_mkdir)
$(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) $(BISON_FILE_PREFIX_MAP) \
-o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
$(OUTPUT)util/bpf-filter-flex.c $(OUTPUT)util/bpf-filter-flex.h: util/bpf-filter.l $(OUTPUT)util/bpf-filter-bison.c
$(call rule_mkdir)
$(Q)$(call echo-cmd,flex)$(FLEX) -o $(OUTPUT)util/bpf-filter-flex.c \
--header-file=$(OUTPUT)util/bpf-filter-flex.h $(PARSER_DEBUG_FLEX) $<
$(OUTPUT)util/bpf-filter-bison.c $(OUTPUT)util/bpf-filter-bison.h: util/bpf-filter.y
$(call rule_mkdir)
$(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) $(BISON_FILE_PREFIX_MAP) \
-o $(OUTPUT)util/bpf-filter-bison.c -p perf_bpf_filter_
FLEX_GE_26 := $(shell expr $(shell $(FLEX) --version | sed -e 's/flex \([0-9]\+\).\([0-9]\+\)/\1\2/g') \>\= 26)
ifeq ($(FLEX_GE_26),1)
flex_flags := -Wno-switch-enum -Wno-switch-default -Wno-unused-function -Wno-redundant-decls -Wno-sign-compare -Wno-unused-parameter -Wno-missing-prototypes -Wno-missing-declarations
CC_HASNT_MISLEADING_INDENTATION := $(shell echo "int main(void) { return 0 }" | $(CC) -Werror -Wno-misleading-indentation -o /dev/null -xc - 2>&1 | grep -q -- -Wno-misleading-indentation ; echo $$?)
ifeq ($(CC_HASNT_MISLEADING_INDENTATION), 1)
flex_flags += -Wno-misleading-indentation
endif
else
flex_flags := -w
endif
CFLAGS_parse-events-flex.o += $(flex_flags)
CFLAGS_pmu-flex.o += $(flex_flags)
CFLAGS_expr-flex.o += $(flex_flags)
CFLAGS_bpf-filter-flex.o += $(flex_flags)
bison_flags := -DYYENABLE_NLS=0
BISON_GE_35 := $(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\)/\1\2/g') \>\= 35)
ifeq ($(BISON_GE_35),1)
bison_flags += -Wno-unused-parameter -Wno-nested-externs -Wno-implicit-function-declaration -Wno-switch-enum -Wno-unused-but-set-variable -Wno-unknown-warning-option
else
bison_flags += -w
endif
CFLAGS_parse-events-bison.o += $(bison_flags)
CFLAGS_pmu-bison.o += -DYYLTYPE_IS_TRIVIAL=0 $(bison_flags)
CFLAGS_expr-bison.o += -DYYLTYPE_IS_TRIVIAL=0 $(bison_flags)
CFLAGS_bpf-filter-bison.o += -DYYLTYPE_IS_TRIVIAL=0 $(bison_flags)
$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
$(OUTPUT)util/expr.o: $(OUTPUT)util/expr-flex.c $(OUTPUT)util/expr-bison.c
$(OUTPUT)util/bpf-filter.o: $(OUTPUT)util/bpf-filter-flex.c $(OUTPUT)util/bpf-filter-bison.c
CFLAGS_bitmap.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_find_bit.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_rbtree.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_libstring.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_hweight.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
CFLAGS_parse-events.o += -Wno-redundant-decls
CFLAGS_expr.o += -Wno-redundant-decls
CFLAGS_header.o += -include $(OUTPUT)PERF-VERSION-FILE
CFLAGS_arm-spe.o += -I$(srctree)/tools/arch/arm64/include/
$(OUTPUT)util/argv_split.o: ../lib/argv_split.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/bitmap.o: ../lib/bitmap.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/ctype.o: ../lib/ctype.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/find_bit.o: ../lib/find_bit.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/rbtree.o: ../lib/rbtree.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/libstring.o: ../lib/string.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/hweight.o: ../lib/hweight.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/vsprintf.o: ../lib/vsprintf.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/list_sort.o: ../lib/list_sort.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
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