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-rw-r--r--tools/build/Makefile.feature81
1 files changed, 61 insertions, 20 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 1e2ab148d5db..1f44ca677ad3 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -28,11 +28,44 @@ endef
# the rule that uses them - an example for that is the 'bionic'
# feature check. ]
#
+# These + the ones in FEATURE_TESTS_EXTRA are included in
+# tools/build/feature/test-all.c and we try to build it all together
+# then setting all those features to '1' meaning they are all enabled.
+#
+# There are things like fortify-source that will be set to 1 because test-all
+# is built with the flags needed to test if its enabled, resulting in
+#
+# $ rm -rf /tmp/b ; mkdir /tmp/b ; make -C tools/perf O=/tmp/b feature-dump
+# $ grep fortify-source /tmp/b/FEATURE-DUMP
+# feature-fortify-source=1
+# $
+#
+# All the others should have lines in tools/build/feature/test-all.c like:
+#
+# #define main main_test_disassembler_init_styled
+# # include "test-disassembler-init-styled.c"
+# #undef main
+#
+# #define main main_test_libzstd
+# # include "test-libzstd.c"
+# #undef main
+#
+# int main(int argc, char *argv[])
+# {
+# main_test_disassembler_four_args();
+# main_test_libzstd();
+# return 0;
+# }
+#
+# If the sample above works, then we end up with these lines in the FEATURE-DUMP
+# file:
+#
+# feature-disassembler-four-args=1
+# feature-libzstd=1
+#
FEATURE_TESTS_BASIC := \
backtrace \
- dwarf \
- dwarf_getlocations \
- dwarf_getcfi \
+ libdw \
eventfd \
fortify-source \
get_current_dir_name \
@@ -40,19 +73,19 @@ FEATURE_TESTS_BASIC := \
glibc \
libbfd \
libbfd-buildid \
- libcap \
libelf \
libelf-getphdrnum \
libelf-gelf_getnote \
libelf-getshdrstrndx \
+ libelf-zstd \
libnuma \
numa_num_possible_cpus \
libperl \
libpython \
libslang \
- libslang-include-subdir \
libtraceevent \
libtracefs \
+ libcpupower \
libcrypto \
libunwind \
pthread-attr-setaffinity-np \
@@ -60,7 +93,6 @@ FEATURE_TESTS_BASIC := \
reallocarray \
stackprotector-all \
timerfd \
- libdw-dwarf-unwind \
zlib \
lzma \
get_cpuid \
@@ -91,16 +123,8 @@ FEATURE_TESTS_EXTRA := \
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 \
@@ -111,7 +135,8 @@ FEATURE_TESTS_EXTRA := \
libbpf-bpf_create_map \
libpfm4 \
libdebuginfod \
- clang-bpf-co-re
+ clang-bpf-co-re \
+ bpftool-skeletons
FEATURE_TESTS ?= $(FEATURE_TESTS_BASIC)
@@ -121,12 +146,10 @@ ifeq ($(FEATURE_TESTS),all)
endif
FEATURE_DISPLAY ?= \
- dwarf \
- dwarf_getlocations \
+ libdw \
glibc \
libbfd \
libbfd-buildid \
- libcap \
libelf \
libnuma \
numa_num_possible_cpus \
@@ -134,8 +157,8 @@ FEATURE_DISPLAY ?= \
libpython \
libcrypto \
libunwind \
- libdw-dwarf-unwind \
libcapstone \
+ llvm-perf \
zlib \
lzma \
get_cpuid \
@@ -149,6 +172,24 @@ FEATURE_DISPLAY ?= \
#
FEATURE_GROUP_MEMBERS-libbfd = libbfd-liberty libbfd-liberty-z
+#
+# Declare list of feature dependency packages that provide pkg-config files.
+#
+FEATURE_PKG_CONFIG ?= \
+ libtraceevent \
+ libtracefs
+
+feature_pkg_config = $(eval $(feature_pkg_config_code))
+define feature_pkg_config_code
+ FEATURE_CHECK_CFLAGS-$(1) := $(shell $(PKG_CONFIG) --cflags $(1) 2>/dev/null)
+ FEATURE_CHECK_LDFLAGS-$(1) := $(shell $(PKG_CONFIG) --libs $(1) 2>/dev/null)
+endef
+
+# Set FEATURE_CHECK_(C|LD)FLAGS-$(package) for packages using pkg-config.
+ifneq ($(PKG_CONFIG),)
+ $(foreach package,$(FEATURE_PKG_CONFIG),$(call feature_pkg_config,$(package)))
+endif
+
# 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 ;-).
@@ -215,7 +256,7 @@ endef
#
# generates feature value assignment for name, like:
-# $(call feature_assign,dwarf) == feature-dwarf=1
+# $(call feature_assign,libdw) == feature-libdw=1
#
feature_assign = feature-$(1)=$(feature-$(1))