Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 290 insertions, 0 deletions

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
new file mode 100644
index 0000000000..934e2777a2
--- /dev/null
+++ b/tools/build/Makefile.feature
@@ -0,0 +1,290 @@
+# 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                             \
+        scandirat			\
+        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                 \
+         cxa-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