# SPDX-License-Identifier: GPL-2.0
include ../../scripts/Makefile.include

LIBUNWIND_ARCHS:=aarch64 arm loongarch64 mips ppc32 ppc64 riscv s390x x86 x86_64

FILES=                                          \
         test-all.bin                           \
         test-backtrace.bin                     \
         test-bionic.bin                        \
         test-libdw.bin                         \
         test-eventfd.bin                       \
         test-fortify-source.bin                \
         test-glibc.bin                         \
         test-gtk2.bin                          \
         test-gtk2-infobar.bin                  \
         test-hello.bin                         \
         test-libbfd.bin                        \
	 test-libbfd-threadsafe.bin      	\
         test-disassembler-four-args.bin        \
         test-disassembler-init-styled.bin	\
         test-reallocarray.bin			\
         test-libbfd-liberty.bin                \
         test-libbfd-liberty-z.bin              \
         test-cplus-demangle.bin                \
         test-cxa-demangle.bin                  \
         test-libcap.bin			\
         test-libelf.bin                        \
         test-libelf-getphdrnum.bin             \
         test-libelf-gelf_getnote.bin           \
         test-libelf-getshdrstrndx.bin          \
         test-libelf-zstd.bin                   \
         test-libdebuginfod.bin                 \
         test-libnuma.bin                       \
         test-numa_num_possible_cpus.bin        \
         test-libperl.bin                       \
         test-libpython.bin                     \
         test-libslang.bin                      \
         test-libtraceevent.bin                 \
         test-libcpupower.bin                   \
         test-libtracefs.bin                    \
         test-libunwind.bin                     \
         test-libunwind-debug-frame.bin         \
         $(foreach arch,$(LIBUNWIND_ARCHS),test-libunwind-$(arch).bin test-libunwind-debug-frame-$(arch).bin) \
         test-pthread-attr-setaffinity-np.bin   \
         test-pthread-barrier.bin		\
         test-stackprotector-all.bin            \
         test-timerfd.bin                       \
         test-babeltrace2-ctf-writer.bin        \
         test-libcapstone.bin			\
         test-libcheck.bin			\
         test-compile-32.bin                    \
         test-compile-x32.bin                   \
         test-zlib.bin                          \
         test-lzma.bin                          \
         test-bpf.bin                           \
         test-libbpf.bin                        \
         test-sdt.bin                           \
         test-gettid.bin			\
         test-jvmti.bin				\
         test-jvmti-cmlr.bin			\
         test-scandirat.bin			\
         test-sched_getcpu.bin			\
         test-setns.bin				\
         test-libopencsd.bin			\
         test-llvm.bin				\
         test-llvm-perf.bin   			\
         test-libaio.bin			\
         test-libzstd.bin			\
         test-clang-bpf-co-re.bin		\
         test-file-handle.bin			\
         test-libpfm4.bin			\
         test-rust.bin				\
         test-libopenssl.bin			\
         test-bpftool-skeletons.bin

FILES := $(addprefix $(OUTPUT),$(FILES))

# Some distros provide the command $(CROSS_COMPILE)pkg-config for
# searching packges installed with Multiarch. Use it for cross
# compilation if it is existed.
ifneq (, $(shell which $(CROSS_COMPILE)pkg-config))
  PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
else
  PKG_CONFIG ?= pkg-config

  # PKG_CONFIG_PATH or PKG_CONFIG_LIBDIR, alongside PKG_CONFIG_SYSROOT_DIR
  # for modified system root, are required for the cross compilation.
  # If these PKG_CONFIG environment variables are not set, Multiarch library
  # paths are used instead.
  ifdef CROSS_COMPILE
    ifeq ($(PKG_CONFIG_LIBDIR)$(PKG_CONFIG_PATH)$(PKG_CONFIG_SYSROOT_DIR),)
      CROSS_ARCH = $(notdir $(CROSS_COMPILE:%-=%))
      PKG_CONFIG_LIBDIR := /usr/local/$(CROSS_ARCH)/lib/pkgconfig/
      PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/lib/$(CROSS_ARCH)/pkgconfig/
      PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/lib/$(CROSS_ARCH)/pkgconfig/
      PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/local/share/pkgconfig/
      PKG_CONFIG_LIBDIR := $(PKG_CONFIG_LIBDIR):/usr/share/pkgconfig/
      export PKG_CONFIG_LIBDIR
    endif
  endif
endif

ifeq ($(findstring -static,${LDFLAGS}),-static)
  PKG_CONFIG += --static
endif

all: $(FILES)

__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS)
  BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1
  BUILD_BFD = $(BUILD) -DPACKAGE='"perf"' -lbfd -ldl
  BUILD_ALL = $(BUILD) -fstack-protector-all -O2 -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -lslang \
	      $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -ldl -lz -llzma -lzstd \
	      $(shell $(PKG_CONFIG) --libs --cflags openssl 2>/dev/null)

__BUILDXX = $(CXX) $(CXXFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.cpp,$(@F)) $(LDFLAGS)
  BUILDXX = $(__BUILDXX) > $(@:.bin=.make.output) 2>&1

###############################

$(OUTPUT)test-all.bin:
	$(BUILD_ALL)

$(OUTPUT)test-hello.bin:
	$(BUILD)

$(OUTPUT)test-pthread-attr-setaffinity-np.bin:
	$(BUILD) -D_GNU_SOURCE -lpthread

$(OUTPUT)test-pthread-barrier.bin:
	$(BUILD) -lpthread

$(OUTPUT)test-stackprotector-all.bin:
	$(BUILD) -fstack-protector-all

$(OUTPUT)test-fortify-source.bin:
	$(BUILD) -O2 -D_FORTIFY_SOURCE=2

$(OUTPUT)test-bionic.bin:
	$(BUILD)

$(OUTPUT)test-libcap.bin:
	$(BUILD) -lcap

$(OUTPUT)test-libelf.bin:
	$(BUILD) -lelf

$(OUTPUT)test-eventfd.bin:
	$(BUILD)

$(OUTPUT)test-glibc.bin:
	$(BUILD)

$(OUTPUT)test-scandirat.bin:
	$(BUILD)

$(OUTPUT)test-sched_getcpu.bin:
	$(BUILD)

$(OUTPUT)test-setns.bin:
	$(BUILD)

$(OUTPUT)test-libopencsd.bin:
	$(BUILD) # -lopencsd_c_api -lopencsd provided by
		 # $(FEATURE_CHECK_LDFLAGS-libopencsd)

DWLIBS := -ldw
ifeq ($(findstring -static,${LDFLAGS}),-static)
  DWLIBS += -lelf -lz -llzma -lbz2 -lzstd

  LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0
  LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
  LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION)))

  # Elfutils merged libebl.a into libdw.a starting from version 0.177,
  # Link libebl.a only if libdw is older than this version.
  ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
    DWLIBS += -lebl
  endif

  # Must put -ldl after -lebl for dependency
  DWARFLIBS += -ldl
endif

$(OUTPUT)test-libdw.bin:
	$(BUILD) $(DWLIBS)

$(OUTPUT)test-libelf-getphdrnum.bin:
	$(BUILD) -lelf

$(OUTPUT)test-libelf-gelf_getnote.bin:
	$(BUILD) -lelf

$(OUTPUT)test-libelf-getshdrstrndx.bin:
	$(BUILD) -lelf

$(OUTPUT)test-libelf-zstd.bin:
	$(BUILD) -lelf -lz -lzstd

$(OUTPUT)test-libdebuginfod.bin:
	$(BUILD) -ldebuginfod

$(OUTPUT)test-libnuma.bin:
	$(BUILD) -lnuma

$(OUTPUT)test-numa_num_possible_cpus.bin:
	$(BUILD) -lnuma

$(OUTPUT)test-libunwind.bin:
	$(BUILD) -include libunwind.h -lelf -llzma -lunwind

$(OUTPUT)test-libunwind-debug-frame.bin:
	$(BUILD) -include libunwind.h -lelf -llzma -lunwind

define LIBUNWIND_RULE
$$(OUTPUT)test-libunwind-$(1).bin:
	$$(CC) $$(CFLAGS) -MD -Wall -Werror -include libunwind-$(1).h -o $$@ \
		test-libunwind.c $$(LDFLAGS) -lelf -llzma -lunwind-$(1) \
		> $$(@:.bin=.make.output) 2>&1

$$(OUTPUT)test-libunwind-debug-frame-$(1).bin:
	$$(CC) $$(CFLAGS) -MD -Wall -Werror -include libunwind-$(1).h -o $$@ \
		test-libunwind-debug-frame.c $$(LDFLAGS) -lelf -llzma -lunwind-$(1) \
		> $$(@:.bin=.make.output) 2>&1

endef
$(foreach arch,$(LIBUNWIND_ARCHS), \
    $(eval $(call LIBUNWIND_RULE,$(arch))) \
)

$(OUTPUT)test-libslang.bin:
	$(BUILD) -lslang

$(OUTPUT)test-libtraceevent.bin:
	$(BUILD) -ltraceevent

$(OUTPUT)test-libcpupower.bin:
	$(BUILD) -lcpupower

$(OUTPUT)test-libtracefs.bin:
	 $(BUILD) $(shell $(PKG_CONFIG) --cflags libtracefs 2>/dev/null) -ltracefs

$(OUTPUT)test-gtk2.bin:
	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null) -Wno-deprecated-declarations

$(OUTPUT)test-gtk2-infobar.bin:
	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)

grep-libs  = $(filter -l%,$(1))
strip-libs = $(filter-out -l%,$(1))

PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)

ifeq ($(CC_NO_CLANG), 0)
  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
  FLAGS_PERL_EMBED += -Wno-compound-token-split-by-macro
endif

$(OUTPUT)test-libperl.bin:
	$(BUILD) $(FLAGS_PERL_EMBED)

$(OUTPUT)test-libpython.bin:
	$(BUILD) $(FLAGS_PYTHON_EMBED)

$(OUTPUT)test-libbfd.bin:
	$(BUILD_BFD)

$(OUTPUT)test-libbfd-threadsafe.bin:
	$(BUILD_BFD) || $(BUILD_BFD) -liberty || $(BUILD_BFD) -liberty -lz

$(OUTPUT)test-disassembler-four-args.bin:
	$(BUILD_BFD) -lopcodes || $(BUILD_BFD) -lopcodes -liberty || \
	$(BUILD_BFD) -lopcodes -liberty -lz

$(OUTPUT)test-disassembler-init-styled.bin:
	$(BUILD_BFD) -lopcodes || $(BUILD_BFD) -lopcodes -liberty || \
	$(BUILD_BFD) -lopcodes -liberty -lz

$(OUTPUT)test-reallocarray.bin:
	$(BUILD)

$(OUTPUT)test-libbfd-liberty.bin:
	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty

$(OUTPUT)test-libbfd-liberty-z.bin:
	$(CC) $(CFLAGS) -Wall -Werror -o $@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz

$(OUTPUT)test-cplus-demangle.bin:
	$(BUILD) -liberty

$(OUTPUT)test-cxa-demangle.bin:
	$(BUILDXX)

$(OUTPUT)test-backtrace.bin:
	$(BUILD)

$(OUTPUT)test-timerfd.bin:
	$(BUILD)

$(OUTPUT)test-babeltrace2-ctf-writer.bin:
	$(BUILD) # -lbabeltrace2-ctf-writer provided by $(FEATURE_CHECK_LDFLAGS-babeltrace2-ctf-writer)

$(OUTPUT)test-libcapstone.bin:
	$(BUILD) # -lcapstone provided by $(FEATURE_CHECK_LDFLAGS-libcapstone)

$(OUTPUT)test-libcheck.bin:
	$(BUILD) # -lcheck is provided by $(FEATURE_CHECK_LDFLAGS-libcheck)

$(OUTPUT)test-compile-32.bin:
	$(CC) -m32 -Wall -Werror -o $@ test-compile.c

$(OUTPUT)test-compile-x32.bin:
	$(CC) -mx32 -Wall -Werror -o $@ test-compile.c

$(OUTPUT)test-zlib.bin:
	$(BUILD) -lz

$(OUTPUT)test-lzma.bin:
	$(BUILD) -llzma

$(OUTPUT)test-bpf.bin:
	$(BUILD)

$(OUTPUT)test-libbpf.bin:
	$(BUILD) -lbpf

$(OUTPUT)test-sdt.bin:
	$(BUILD)

$(OUTPUT)test-gettid.bin:
	$(BUILD)

$(OUTPUT)test-jvmti.bin:
	$(BUILD)

$(OUTPUT)test-jvmti-cmlr.bin:
	$(BUILD)

$(OUTPUT)test-llvm.bin:
	$(BUILDXX) -std=gnu++17 				\
		-I$(shell $(LLVM_CONFIG) --includedir) 		\
		-L$(shell $(LLVM_CONFIG) --libdir)		\
		$(shell $(LLVM_CONFIG) --libs Core BPF)		\
		$(shell $(LLVM_CONFIG) --system-libs)		\
		> $(@:.bin=.make.output) 2>&1

$(OUTPUT)test-llvm-perf.bin:
	$(BUILDXX) -std=gnu++17 				\
		-I$(shell $(LLVM_CONFIG) --includedir) 		\
		-L$(shell $(LLVM_CONFIG) --libdir)		\
		$(shell $(LLVM_CONFIG) --libs Core BPF)		\
		$(shell $(LLVM_CONFIG) --system-libs)		\
		> $(@:.bin=.make.output) 2>&1

-include $(OUTPUT)*.d

$(OUTPUT)test-libaio.bin:
	$(BUILD) -lrt

$(OUTPUT)test-libzstd.bin:
	$(BUILD) -lzstd

$(OUTPUT)test-clang-bpf-co-re.bin: test-clang-bpf-co-re.c
	{ $(CLANG) -S -g --target=bpf -o - $< |	\
		grep BTF_KIND_VAR; } > $(@:.bin=.make.output) 2>&1 && touch $@

$(OUTPUT)test-file-handle.bin:
	$(BUILD)

$(OUTPUT)test-libpfm4.bin:
	$(BUILD) -lpfm

$(OUTPUT)test-libopenssl.bin:
	$(BUILD) $(shell $(PKG_CONFIG) --libs --cflags openssl 2>/dev/null)

$(OUTPUT)test-bpftool-skeletons.bin:
	{ $(SYSTEM_BPFTOOL) version | grep '^features:.*skeletons'; } \
		> $(@:.bin=.make.output) 2>&1 && touch $@

# Testing Rust is special: we don't compile anything, it's enough to check the
# compiler presence. Compiling a test code for this purposes is problematic,
# because Rust will emit a dependency file without any external references,
# meaning that if rustc will be removed the build process will still think it's
# there.
$(OUTPUT)test-rust.bin:
	$(RUSTC) --version > /dev/null 2>&1

###############################

clean:
	rm -f $(FILES) $(OUTPUT)*.d $(FILES:.bin=.make.output)