diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/build/Makefile | 54 | ||||
| -rw-r--r-- | tools/build/Makefile.build | 162 | ||||
| -rw-r--r-- | tools/build/Makefile.feature | 288 | ||||
| -rw-r--r-- | tools/build/Makefile.include | 10 |
4 files changed, 514 insertions, 0 deletions
diff --git a/tools/build/Makefile b/tools/build/Makefile new file mode 100644 index 000000000..17cdf01e2 --- /dev/null +++ b/tools/build/Makefile @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0 +ifeq ($(srctree),) +srctree := $(patsubst %/,%,$(dir $(CURDIR))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +endif + +include $(srctree)/tools//scripts/Makefile.include + +define allow-override + $(if $(or $(findstring environment,$(origin $(1))),\ + $(findstring command line,$(origin $(1)))),,\ + $(eval $(1) = $(2))) +endef + +$(call allow-override,CC,$(CROSS_COMPILE)gcc) +$(call allow-override,LD,$(CROSS_COMPILE)ld) + +export HOSTCC HOSTLD HOSTAR + +ifeq ($(V),1) + Q = +else + Q = @ +endif + +export Q srctree CC LD + +MAKEFLAGS := --no-print-directory +build := -f $(srctree)/tools/build/Makefile.build dir=. obj + +all: $(OUTPUT)fixdep + +# Make sure there's anything to clean, +# feature contains check for existing OUTPUT +TMP_O := $(if $(OUTPUT),$(OUTPUT)feature/,./) + +clean: + $(call QUIET_CLEAN, fixdep) + $(Q)find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete + $(Q)rm -f $(OUTPUT)fixdep + $(call QUIET_CLEAN, feature-detect) +ifneq ($(wildcard $(TMP_O)),) + $(Q)$(MAKE) -C feature OUTPUT=$(TMP_O) clean >/dev/null +endif + +$(OUTPUT)fixdep-in.o: FORCE + $(Q)$(MAKE) $(build)=fixdep + +$(OUTPUT)fixdep: $(OUTPUT)fixdep-in.o + $(QUIET_LINK)$(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ $< + +FORCE: + +.PHONY: FORCE diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build new file mode 100644 index 000000000..715092fc6 --- /dev/null +++ b/tools/build/Makefile.build @@ -0,0 +1,162 @@ +# SPDX-License-Identifier: GPL-2.0 +### +# Main build makefile. +# +# Lots of this code have been borrowed or heavily inspired from parts +# of kbuild code, which is not credited, but mostly developed by: +# +# Copyright (C) Sam Ravnborg <sam@mars.ravnborg.org>, 2015 +# Copyright (C) Linus Torvalds <torvalds@linux-foundation.org>, 2015 +# + +PHONY := __build +__build: + +ifeq ($(V),1) + quiet = + Q = +else + quiet=quiet_ + Q=@ +endif + +ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),) + quiet=silent_ +endif + +build-dir := $(srctree)/tools/build + +# Define $(fixdep) for dep-cmd function +ifeq ($(OUTPUT),) + fixdep := $(build-dir)/fixdep +else + fixdep := $(OUTPUT)/fixdep +endif + +# Generic definitions +include $(build-dir)/Build.include + +# do not force detected configuration +-include $(OUTPUT).config-detected + +# Init all relevant variables used in build files so +# 1) they have correct type +# 2) they do not inherit any value from the environment +subdir-y := +obj-y := +subdir-y := +subdir-obj-y := + +# Build definitions +build-file := $(dir)/Build +-include $(build-file) + +quiet_cmd_flex = FLEX $@ +quiet_cmd_bison = BISON $@ + +# Create directory unless it exists +quiet_cmd_mkdir = MKDIR $(dir $@) + cmd_mkdir = mkdir -p $(dir $@) + rule_mkdir = $(if $(wildcard $(dir $@)),,@$(call echo-cmd,mkdir) $(cmd_mkdir)) + +# Compile command +quiet_cmd_cc_o_c = CC $@ + cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< + +quiet_cmd_host_cc_o_c = HOSTCC $@ + cmd_host_cc_o_c = $(HOSTCC) $(host_c_flags) -c -o $@ $< + +quiet_cmd_cxx_o_c = CXX $@ + cmd_cxx_o_c = $(CXX) $(cxx_flags) -c -o $@ $< + +quiet_cmd_cpp_i_c = CPP $@ + cmd_cpp_i_c = $(CC) $(c_flags) -E -o $@ $< + +quiet_cmd_cc_s_c = AS $@ + cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $< + +quiet_cmd_gen = GEN $@ + +# Link agregate command +# If there's nothing to link, create empty $@ object. +quiet_cmd_ld_multi = LD $@ + cmd_ld_multi = $(if $(strip $(obj-y)),\ + $(LD) -r -o $@ $(filter $(obj-y),$^),rm -f $@; $(AR) rcs $@) + +quiet_cmd_host_ld_multi = HOSTLD $@ + cmd_host_ld_multi = $(if $(strip $(obj-y)),\ + $(HOSTLD) -r -o $@ $(filter $(obj-y),$^),rm -f $@; $(HOSTAR) rcs $@) + +ifneq ($(filter $(obj),$(hostprogs)),) + host = host_ +endif + +# Build rules +$(OUTPUT)%.o: %.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,$(host)cc_o_c) + +$(OUTPUT)%.o: %.cpp FORCE + $(call rule_mkdir) + $(call if_changed_dep,cxx_o_c) + +$(OUTPUT)%.o: %.S FORCE + $(call rule_mkdir) + $(call if_changed_dep,$(host)cc_o_c) + +$(OUTPUT)%.i: %.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cpp_i_c) + +$(OUTPUT)%.s: %.S FORCE + $(call rule_mkdir) + $(call if_changed_dep,cpp_i_c) + +$(OUTPUT)%.s: %.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_s_c) + +# Gather build data: +# obj-y - list of build objects +# subdir-y - list of directories to nest +# subdir-obj-y - list of directories objects 'dir/$(obj)-in.o' +obj-y := $($(obj)-y) +subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) +obj-y := $(patsubst %/, %/$(obj)-in.o, $(obj-y)) +subdir-obj-y := $(filter %/$(obj)-in.o, $(obj-y)) + +# '$(OUTPUT)/dir' prefix to all objects +objprefix := $(subst ./,,$(OUTPUT)$(dir)/) +obj-y := $(addprefix $(objprefix),$(obj-y)) +subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y)) + +# Final '$(obj)-in.o' object +in-target := $(objprefix)$(obj)-in.o + +PHONY += $(subdir-y) + +$(subdir-y): + $(Q)$(MAKE) -f $(build-dir)/Makefile.build dir=$(dir)/$@ obj=$(obj) + +$(sort $(subdir-obj-y)): $(subdir-y) ; + +$(in-target): $(obj-y) FORCE + $(call rule_mkdir) + $(call if_changed,$(host)ld_multi) + +__build: $(in-target) + @: + +PHONY += FORCE +FORCE: + +# Include all cmd files to get all the dependency rules +# for all objects included +targets := $(wildcard $(sort $(obj-y) $(in-target) $(MAKECMDGOALS))) +cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) + +ifneq ($(cmd_files),) + include $(cmd_files) +endif + +.PHONY: $(PHONY) diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature new file mode 100644 index 000000000..38f8851bd --- /dev/null +++ b/tools/build/Makefile.feature @@ -0,0 +1,288 @@ +# SPDX-License-Identifier: GPL-2.0-only +feature_dir := $(srctree)/tools/build/feature + +ifneq ($(OUTPUT),) + OUTPUT_FEATURES = $(OUTPUT)feature/ + $(shell mkdir -p $(OUTPUT_FEATURES)) +endif + +feature_check = $(eval $(feature_check_code)) +define feature_check_code + feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CC="$(CC)" CXX="$(CXX)" CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" CXXFLAGS="$(EXTRA_CXXFLAGS) $(FEATURE_CHECK_CXXFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0) +endef + +feature_set = $(eval $(feature_set_code)) +define feature_set_code + feature-$(1) := 1 +endef + +# +# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output: +# + +# +# Note that this is not a complete list of all feature tests, just +# those that are typically built on a fully configured system. +# +# [ Feature tests not mentioned here have to be built explicitly in +# the rule that uses them - an example for that is the 'bionic' +# feature check. ] +# +FEATURE_TESTS_BASIC := \ + backtrace \ + dwarf \ + dwarf_getlocations \ + eventfd \ + fortify-source \ + get_current_dir_name \ + gettid \ + glibc \ + libbfd \ + libbfd-buildid \ + libcap \ + libelf \ + libelf-getphdrnum \ + libelf-gelf_getnote \ + libelf-getshdrstrndx \ + libnuma \ + numa_num_possible_cpus \ + libperl \ + libpython \ + libslang \ + libslang-include-subdir \ + libtraceevent \ + libtracefs \ + libcrypto \ + libunwind \ + pthread-attr-setaffinity-np \ + pthread-barrier \ + reallocarray \ + stackprotector-all \ + timerfd \ + libdw-dwarf-unwind \ + zlib \ + lzma \ + get_cpuid \ + bpf \ + sched_getcpu \ + sdt \ + setns \ + libaio \ + libzstd \ + disassembler-four-args \ + disassembler-init-styled \ + file-handle + +# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list +# of all feature tests +FEATURE_TESTS_EXTRA := \ + bionic \ + compile-32 \ + compile-x32 \ + cplus-demangle \ + gtk2 \ + gtk2-infobar \ + hello \ + libbabeltrace \ + libbfd-liberty \ + libbfd-liberty-z \ + libopencsd \ + libunwind-x86 \ + libunwind-x86_64 \ + libunwind-arm \ + libunwind-aarch64 \ + libunwind-debug-frame \ + libunwind-debug-frame-arm \ + libunwind-debug-frame-aarch64 \ + cxx \ + llvm \ + llvm-version \ + clang \ + libbpf \ + libbpf-btf__load_from_kernel_by_id \ + libbpf-bpf_prog_load \ + libbpf-bpf_object__next_program \ + libbpf-bpf_object__next_map \ + libbpf-bpf_program__set_insns \ + libbpf-bpf_create_map \ + libpfm4 \ + libdebuginfod \ + clang-bpf-co-re + + +FEATURE_TESTS ?= $(FEATURE_TESTS_BASIC) + +ifeq ($(FEATURE_TESTS),all) + FEATURE_TESTS := $(FEATURE_TESTS_BASIC) $(FEATURE_TESTS_EXTRA) +endif + +FEATURE_DISPLAY ?= \ + dwarf \ + dwarf_getlocations \ + glibc \ + libbfd \ + libbfd-buildid \ + libcap \ + libelf \ + libnuma \ + numa_num_possible_cpus \ + libperl \ + libpython \ + libcrypto \ + libunwind \ + libdw-dwarf-unwind \ + zlib \ + lzma \ + get_cpuid \ + bpf \ + libaio \ + libzstd + +# +# Declare group members of a feature to display the logical OR of the detection +# result instead of each member result. +# +FEATURE_GROUP_MEMBERS-libbfd = libbfd-liberty libbfd-liberty-z + +# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. +# If in the future we need per-feature checks/flags for features not +# mentioned in this list we need to refactor this ;-). +set_test_all_flags = $(eval $(set_test_all_flags_code)) +define set_test_all_flags_code + FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1)) + FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1)) +endef + +$(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat))) + +# +# Special fast-path for the 'all features are available' case: +# +$(call feature_check,all,$(MSG)) + +# +# Just in case the build freshly failed, make sure we print the +# feature matrix: +# +ifeq ($(feature-all), 1) + # + # test-all.c passed - just set all the core feature flags to 1: + # + $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat))) + # + # test-all.c does not comprise these tests, so we need to + # for this case to get features proper values + # + $(call feature_check,compile-32) + $(call feature_check,compile-x32) + $(call feature_check,bionic) + $(call feature_check,libbabeltrace) +else + $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat))) +endif + +# +# Print the result of the feature test: +# +feature_print_status = $(eval $(feature_print_status_code)) + +feature_group = $(eval $(feature_gen_group)) $(GROUP) + +define feature_gen_group + GROUP := $(1) + ifneq ($(feature_verbose),1) + GROUP += $(FEATURE_GROUP_MEMBERS-$(1)) + endif +endef + +define feature_print_status_code + ifneq (,$(filter 1,$(foreach feat,$(call feature_group,$(feat)),$(feature-$(feat))))) + MSG = $(shell printf '...%40s: [ \033[32mon\033[m ]' $(1)) + else + MSG = $(shell printf '...%40s: [ \033[31mOFF\033[m ]' $(1)) + endif +endef + +feature_print_text = $(eval $(feature_print_text_code)) +define feature_print_text_code + MSG = $(shell printf '...%40s: %s' $(1) $(2)) +endef + +# +# generates feature value assignment for name, like: +# $(call feature_assign,dwarf) == feature-dwarf=1 +# +feature_assign = feature-$(1)=$(feature-$(1)) + +FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER) +FEATURE_DUMP := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME)) + +feature_dump_check = $(eval $(feature_dump_check_code)) +define feature_dump_check_code + ifeq ($(findstring $(1),$(FEATURE_DUMP)),) + $(2) := 1 + endif +endef + +# +# First check if any test from FEATURE_DISPLAY +# and set feature_display := 1 if it does +$(foreach feat,$(FEATURE_DISPLAY),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_display)) + +# +# Now also check if any other test changed, +# so we force FEATURE-DUMP generation +$(foreach feat,$(FEATURE_TESTS),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_dump_changed)) + +# The $(feature_display) controls the default detection message +# output. It's set if: +# - detected features differes from stored features from +# last build (in $(FEATURE_DUMP_FILENAME) file) +# - one of the $(FEATURE_DISPLAY) is not detected +# - VF is enabled + +ifeq ($(feature_dump_changed),1) + $(shell rm -f $(FEATURE_DUMP_FILENAME)) + $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME))) +endif + +feature_display_check = $(eval $(feature_check_display_code)) +define feature_check_display_code + ifneq ($(feature-$(1)), 1) + feature_display := 1 + endif +endef + +$(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat))) + +ifeq ($(VF),1) + feature_display := 1 + feature_verbose := 1 +endif + +ifneq ($(feature_verbose),1) + # + # Determine the features to omit from the displayed message, as only the + # logical OR of the detection result will be shown. + # + FEATURE_OMIT := $(foreach feat,$(FEATURE_DISPLAY),$(FEATURE_GROUP_MEMBERS-$(feat))) +endif + +feature_display_entries = $(eval $(feature_display_entries_code)) +define feature_display_entries_code + ifeq ($(feature_display),1) + $$(info ) + $$(info Auto-detecting system features:) + $(foreach feat,$(filter-out $(FEATURE_OMIT),$(FEATURE_DISPLAY)),$(call feature_print_status,$(feat),) $$(info $(MSG))) + endif + + ifeq ($(feature_verbose),1) + $(eval TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS))) + $(foreach feat,$(TMP),$(call feature_print_status,$(feat),) $$(info $(MSG))) + endif +endef + +ifeq ($(FEATURE_DISPLAY_DEFERRED),) + $(call feature_display_entries) + $(info ) +endif diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include new file mode 100644 index 000000000..8dadaa0fb --- /dev/null +++ b/tools/build/Makefile.include @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only +build := -f $(srctree)/tools/build/Makefile.build dir=. obj + +fixdep: + $(Q)$(MAKE) -C $(srctree)/tools/build CFLAGS= LDFLAGS= $(OUTPUT)fixdep + +fixdep-clean: + $(Q)$(MAKE) -C $(srctree)/tools/build clean + +.PHONY: fixdep |