[mirror_ubuntu-focal-kernel.git] / tools / perf / Makefile.perf

include ../scripts/Makefile.include

# The default target of this Makefile is...
all:

include ../scripts/utilities.mak

# Define V to have a more verbose compile.
#
# Define VF to have a more verbose feature check output.
#
# Define O to save output files in a separate directory.
#
# Define ARCH as name of target architecture if you want cross-builds.
#
# Define CROSS_COMPILE as prefix name of compiler if you want cross-builds.
#
# Define NO_LIBPERL to disable perl script extension.
#
# Define NO_LIBPYTHON to disable python script extension.
#
# Define PYTHON to point to the python binary if the default
# `python' is not correct; for example: PYTHON=python2
#
# Define PYTHON_CONFIG to point to the python-config binary if
# the default `$(PYTHON)-config' is not correct.
#
# Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
#
# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
#
# Define LDFLAGS=-static to build a static binary.
#
# Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds.
#
# Define EXCLUDE_EXTLIBS=-lmylib to exclude libmylib from the auto-generated
# EXTLIBS.
#
# Define EXTRA_PERFLIBS to pass extra libraries to PERFLIBS.
#
# Define NO_DWARF if you do not want debug-info analysis feature at all.
#
# Define WERROR=0 to disable treating any warnings as errors.
#
# Define NO_NEWT if you do not want TUI support. (deprecated)
#
# Define NO_SLANG if you do not want TUI support.
#
# Define NO_GTK2 if you do not want GTK+ GUI support.
#
# Define NO_DEMANGLE if you do not want C++ symbol demangling.
#
# Define NO_LIBELF if you do not want libelf dependency (e.g. cross-builds)
#
# Define NO_LIBUNWIND if you do not want libunwind dependency for dwarf
# backtrace post unwind.
#
# Define NO_BACKTRACE if you do not want stack backtrace debug feature
#
# Define NO_LIBNUMA if you do not want numa perf benchmark
#
# Define NO_LIBAUDIT if you do not want libaudit support
#
# Define NO_LIBBIONIC if you do not want bionic support
#
# Define NO_LIBCRYPTO if you do not want libcrypto (openssl) support
# used for generating build-ids for ELFs generated by jitdump.
#
# Define NO_LIBDW_DWARF_UNWIND if you do not want libdw support
# for dwarf backtrace post unwind.
#
# Define NO_PERF_READ_VDSO32 if you do not want to build perf-read-vdso32
# for reading the 32-bit compatibility VDSO in 64-bit mode
#
# Define NO_PERF_READ_VDSOX32 if you do not want to build perf-read-vdsox32
# for reading the x32 mode 32-bit compatibility VDSO in 64-bit mode
#
# Define NO_ZLIB if you do not want to support compressed kernel modules
#
# Define NO_LIBBABELTRACE if you do not want libbabeltrace support
# for CTF data format.
#
# Define NO_LZMA if you do not want to support compressed (xz) kernel modules
#
# Define NO_AUXTRACE if you do not want AUX area tracing support
#
# Define NO_LIBBPF if you do not want BPF support
#
# Define NO_SDT if you do not want to define SDT event in perf tools,
# note that it doesn't disable SDT scanning support.
#
# Define FEATURES_DUMP to provide features detection dump file
# and bypass the feature detection
#
# Define NO_JVMTI if you do not want jvmti agent built
#
# Define LIBCLANGLLVM if you DO want builtin clang and llvm support.
# When selected, pass LLVM_CONFIG=/path/to/llvm-config to `make' if
# llvm-config is not in $PATH.

# Define NO_CORESIGHT if you do not want support for CoreSight trace decoding.

# As per kernel Makefile, avoid funny character set dependencies
unexport LC_ALL
LC_COLLATE=C
LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC

ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif

ifneq ($(objtree),)
#$(info Determined 'objtree' to be $(objtree))
endif

ifneq ($(OUTPUT),)
#$(info Determined 'OUTPUT' to be $(OUTPUT))
# Adding $(OUTPUT) as a directory to look for source files,
# because use generated output files as sources dependency
# for flex/bison parsers.
VPATH += $(OUTPUT)
export VPATH
endif

ifeq ($(V),1)
  Q =
else
  Q = @
endif

# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r

# Makefiles suck: This macro sets a default value of $(2) for the
# variable named by $(1), unless the variable has been set by
# environment or command line. This is necessary for CC and AR
# because make sets default values, so the simpler ?= approach
# won't work as expected.
define allow-override
  $(if $(or $(findstring environment,$(origin $(1))),\
            $(findstring command line,$(origin $(1)))),,\
    $(eval $(1) = $(2)))
endef

LD += $(EXTRA_LDFLAGS)

HOSTCC  ?= gcc
HOSTLD  ?= ld
HOSTAR  ?= ar

PKG_CONFIG = $(CROSS_COMPILE)pkg-config
LLVM_CONFIG ?= llvm-config

RM      = rm -f
LN      = ln -f
MKDIR   = mkdir
FIND    = find
INSTALL = install
FLEX    ?= flex
BISON   ?= bison
STRIP   = strip
AWK     = awk

# include Makefile.config by default and rule out
# non-config cases
config := 1

NON_CONFIG_TARGETS := clean python-clean TAGS tags cscope help install-doc install-man install-html install-info install-pdf doc man html info pdf

ifdef MAKECMDGOALS
ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
  config := 0
endif
endif

# The fixdep build - we force fixdep tool to be built as
# the first target in the separate make session not to be
# disturbed by any parallel make jobs. Once fixdep is done
# we issue the requested build with FIXDEP=1 variable.
#
# The fixdep build is disabled for $(NON_CONFIG_TARGETS)
# targets, because it's not necessary.

ifdef FIXDEP
  force_fixdep := 0
else
  force_fixdep := $(config)
endif

export srctree OUTPUT RM CC CXX LD AR CFLAGS CXXFLAGS V BISON FLEX AWK
export HOSTCC HOSTLD HOSTAR

include $(srctree)/tools/build/Makefile.include

ifeq ($(force_fixdep),1)
goals := $(filter-out all sub-make, $(MAKECMDGOALS))

$(goals) all: sub-make

sub-make: fixdep
	@./check-headers.sh
	$(Q)$(MAKE) FIXDEP=1 -f Makefile.perf $(goals)

else # force_fixdep

LIB_DIR         = $(srctree)/tools/lib/api/
TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
BPF_DIR         = $(srctree)/tools/lib/bpf/
SUBCMD_DIR      = $(srctree)/tools/lib/subcmd/

# Set FEATURE_TESTS to 'all' so all possible feature checkers are executed.
# Without this setting the output feature dump file misses some features, for
# example, liberty. Select all checkers so we won't get an incomplete feature
# dump file.
ifeq ($(config),1)
ifdef MAKECMDGOALS
ifeq ($(filter feature-dump,$(MAKECMDGOALS)),feature-dump)
FEATURE_TESTS := all
endif
endif
include Makefile.config
endif

ifeq ($(config),0)
include $(srctree)/tools/scripts/Makefile.arch
-include arch/$(SRCARCH)/Makefile
endif

# The FEATURE_DUMP_EXPORT holds location of the actual
# FEATURE_DUMP file to be used to bypass feature detection
# (for bpf or any other subproject)
ifeq ($(FEATURES_DUMP),)
FEATURE_DUMP_EXPORT := $(realpath $(OUTPUT)FEATURE-DUMP)
else
FEATURE_DUMP_EXPORT := $(realpath $(FEATURES_DUMP))
endif

export prefix bindir sharedir sysconfdir DESTDIR

# sparse is architecture-neutral, which means that we need to tell it
# explicitly what architecture to check for. Fix this up for yours..
SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__

# Guard against environment variables
PYRF_OBJS =
SCRIPT_SH =

SCRIPT_SH += perf-archive.sh
SCRIPT_SH += perf-with-kcore.sh

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

ifneq ($(OUTPUT),)
  TE_PATH=$(OUTPUT)
  BPF_PATH=$(OUTPUT)
  SUBCMD_PATH=$(OUTPUT)
ifneq ($(subdir),)
  API_PATH=$(OUTPUT)/../lib/api/
else
  API_PATH=$(OUTPUT)
endif
else
  TE_PATH=$(TRACE_EVENT_DIR)
  API_PATH=$(LIB_DIR)
  BPF_PATH=$(BPF_DIR)
  SUBCMD_PATH=$(SUBCMD_DIR)
endif

LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
export LIBTRACEEVENT

LIBTRACEEVENT_DYNAMIC_LIST = $(TE_PATH)libtraceevent-dynamic-list

#
# The static build has no dynsym table, so this does not work for
# static build. Looks like linker starts to scream about that now
# (in Fedora 26) so we need to switch it off for static build.
DYNAMIC_LIST_LDFLAGS               = -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYNAMIC_LIST)
LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS = $(if $(findstring -static,$(LDFLAGS)),,$(DYNAMIC_LIST_LDFLAGS))

LIBAPI = $(API_PATH)libapi.a
export LIBAPI

LIBBPF = $(BPF_PATH)libbpf.a

LIBSUBCMD = $(SUBCMD_PATH)libsubcmd.a

# python extension build directories
PYTHON_EXTBUILD     := $(OUTPUT)python_ext_build/
PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP

python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT)python/perf*.so

PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBAPI)

SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))

PROGRAMS += $(OUTPUT)perf

ifndef NO_PERF_READ_VDSO32
PROGRAMS += $(OUTPUT)perf-read-vdso32
endif

ifndef NO_PERF_READ_VDSOX32
PROGRAMS += $(OUTPUT)perf-read-vdsox32
endif

LIBJVMTI = libperf-jvmti.so

ifndef NO_JVMTI
PROGRAMS += $(OUTPUT)$(LIBJVMTI)
endif

# what 'all' will build and 'install' will install, in perfexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)

# what 'all' will build but not install in perfexecdir
OTHER_PROGRAMS = $(OUTPUT)perf

# Set paths to tools early so that they can be used for version tests.
ifndef SHELL_PATH
  SHELL_PATH = /bin/sh
endif
ifndef PERL_PATH
  PERL_PATH = /usr/bin/perl
endif

export PERL_PATH

LIB_FILE=$(OUTPUT)libperf.a

PERFLIBS = $(LIB_FILE) $(LIBAPI) $(LIBTRACEEVENT) $(LIBSUBCMD)
ifndef NO_LIBBPF
  PERFLIBS += $(LIBBPF)
endif

# We choose to avoid "if .. else if .. else .. endif endif"
# because maintaining the nesting to match is a pain.  If
# we had "elif" things would have been much nicer...

ifneq ($(OUTPUT),)
  CFLAGS += -I$(OUTPUT)
endif

ifndef NO_GTK2
  ALL_PROGRAMS += $(OUTPUT)libperf-gtk.so
  GTK_IN := $(OUTPUT)gtk-in.o
endif

ifdef ASCIIDOC8
  export ASCIIDOC8
endif

EXTLIBS := $(call filter-out,$(EXCLUDE_EXTLIBS),$(EXTLIBS))
LIBS = -Wl,--whole-archive $(PERFLIBS) $(EXTRA_PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group

ifeq ($(USE_CLANG), 1)
  CLANGLIBS_LIST = AST Basic CodeGen Driver Frontend Lex Tooling Edit Sema Analysis Parse Serialization
  CLANGLIBS_NOEXT_LIST = $(foreach l,$(CLANGLIBS_LIST),$(shell $(LLVM_CONFIG) --libdir)/libclang$(l))
  LIBCLANG = $(foreach l,$(CLANGLIBS_NOEXT_LIST),$(wildcard $(l).a $(l).so))
  LIBS += -Wl,--start-group $(LIBCLANG) -Wl,--end-group
endif

ifeq ($(USE_LLVM), 1)
  LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
  LIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
endif

ifeq ($(USE_CXX), 1)
  LIBS += -lstdc++
endif

export INSTALL SHELL_PATH

### Build rules

SHELL = $(SHELL_PATH)

linux_uapi_dir := $(srctree)/tools/include/uapi/linux

beauty_outdir := $(OUTPUT)trace/beauty/generated
beauty_ioctl_outdir := $(beauty_outdir)/ioctl
drm_ioctl_array := $(beauty_ioctl_outdir)/drm_ioctl_array.c
drm_hdr_dir := $(srctree)/tools/include/uapi/drm
drm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/drm_ioctl.sh

# Create output directory if not already present
_dummy := $(shell [ -d '$(beauty_ioctl_outdir)' ] || mkdir -p '$(beauty_ioctl_outdir)')

$(drm_ioctl_array): $(drm_hdr_dir)/drm.h $(drm_hdr_dir)/i915_drm.h $(drm_ioctl_tbl)
	$(Q)$(SHELL) '$(drm_ioctl_tbl)' $(drm_hdr_dir) > $@

pkey_alloc_access_rights_array := $(beauty_outdir)/pkey_alloc_access_rights_array.c
asm_generic_hdr_dir := $(srctree)/tools/include/uapi/asm-generic/
pkey_alloc_access_rights_tbl := $(srctree)/tools/perf/trace/beauty/pkey_alloc_access_rights.sh

$(pkey_alloc_access_rights_array): $(asm_generic_hdr_dir)/mman-common.h $(pkey_alloc_access_rights_tbl)
	$(Q)$(SHELL) '$(pkey_alloc_access_rights_tbl)' $(asm_generic_hdr_dir) > $@

sndrv_ctl_ioctl_array := $(beauty_ioctl_outdir)/sndrv_ctl_ioctl_array.c
sndrv_ctl_hdr_dir := $(srctree)/tools/include/uapi/sound
sndrv_ctl_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/sndrv_ctl_ioctl.sh

$(sndrv_ctl_ioctl_array): $(sndrv_ctl_hdr_dir)/asound.h $(sndrv_ctl_ioctl_tbl)
	$(Q)$(SHELL) '$(sndrv_ctl_ioctl_tbl)' $(sndrv_ctl_hdr_dir) > $@

sndrv_pcm_ioctl_array := $(beauty_ioctl_outdir)/sndrv_pcm_ioctl_array.c
sndrv_pcm_hdr_dir := $(srctree)/tools/include/uapi/sound
sndrv_pcm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/sndrv_pcm_ioctl.sh

$(sndrv_pcm_ioctl_array): $(sndrv_pcm_hdr_dir)/asound.h $(sndrv_pcm_ioctl_tbl)
	$(Q)$(SHELL) '$(sndrv_pcm_ioctl_tbl)' $(sndrv_pcm_hdr_dir) > $@

kcmp_type_array := $(beauty_outdir)/kcmp_type_array.c
kcmp_hdr_dir := $(srctree)/tools/include/uapi/linux/
kcmp_type_tbl := $(srctree)/tools/perf/trace/beauty/kcmp_type.sh

$(kcmp_type_array): $(kcmp_hdr_dir)/kcmp.h $(kcmp_type_tbl)
	$(Q)$(SHELL) '$(kcmp_type_tbl)' $(kcmp_hdr_dir) > $@

kvm_ioctl_array := $(beauty_ioctl_outdir)/kvm_ioctl_array.c
kvm_hdr_dir := $(srctree)/tools/include/uapi/linux
kvm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/kvm_ioctl.sh

$(kvm_ioctl_array): $(kvm_hdr_dir)/kvm.h $(kvm_ioctl_tbl)
	$(Q)$(SHELL) '$(kvm_ioctl_tbl)' $(kvm_hdr_dir) > $@

socket_ipproto_array := $(beauty_outdir)/socket_ipproto_array.c
socket_ipproto_tbl := $(srctree)/tools/perf/trace/beauty/socket_ipproto.sh

$(socket_ipproto_array): $(linux_uapi_dir)/in.h $(socket_ipproto_tbl)
	$(Q)$(SHELL) '$(socket_ipproto_tbl)' $(linux_uapi_dir) > $@

vhost_virtio_ioctl_array := $(beauty_ioctl_outdir)/vhost_virtio_ioctl_array.c
vhost_virtio_hdr_dir := $(srctree)/tools/include/uapi/linux
vhost_virtio_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/vhost_virtio_ioctl.sh

$(vhost_virtio_ioctl_array): $(vhost_virtio_hdr_dir)/vhost.h $(vhost_virtio_ioctl_tbl)
	$(Q)$(SHELL) '$(vhost_virtio_ioctl_tbl)' $(vhost_virtio_hdr_dir) > $@

perf_ioctl_array := $(beauty_ioctl_outdir)/perf_ioctl_array.c
perf_hdr_dir := $(srctree)/tools/include/uapi/linux
perf_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/perf_ioctl.sh

$(perf_ioctl_array): $(perf_hdr_dir)/perf_event.h $(perf_ioctl_tbl)
	$(Q)$(SHELL) '$(perf_ioctl_tbl)' $(perf_hdr_dir) > $@

madvise_behavior_array := $(beauty_outdir)/madvise_behavior_array.c
madvise_hdr_dir := $(srctree)/tools/include/uapi/asm-generic/
madvise_behavior_tbl := $(srctree)/tools/perf/trace/beauty/madvise_behavior.sh

$(madvise_behavior_array): $(madvise_hdr_dir)/mman-common.h $(madvise_behavior_tbl)
	$(Q)$(SHELL) '$(madvise_behavior_tbl)' $(madvise_hdr_dir) > $@

mount_flags_array := $(beauty_outdir)/mount_flags_array.c
mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/mount_flags.sh

$(mount_flags_array): $(linux_uapi_dir)/fs.h $(mount_flags_tbl)
	$(Q)$(SHELL) '$(mount_flags_tbl)' $(linux_uapi_dir) > $@

prctl_option_array := $(beauty_outdir)/prctl_option_array.c
prctl_hdr_dir := $(srctree)/tools/include/uapi/linux/
prctl_option_tbl := $(srctree)/tools/perf/trace/beauty/prctl_option.sh

$(prctl_option_array): $(prctl_hdr_dir)/prctl.h $(prctl_option_tbl)
	$(Q)$(SHELL) '$(prctl_option_tbl)' $(prctl_hdr_dir) > $@

arch_errno_name_array := $(beauty_outdir)/arch_errno_name_array.c
arch_errno_hdr_dir := $(srctree)/tools
arch_errno_tbl := $(srctree)/tools/perf/trace/beauty/arch_errno_names.sh

$(arch_errno_name_array): $(arch_errno_tbl)
	$(Q)$(SHELL) '$(arch_errno_tbl)' $(CC) $(arch_errno_hdr_dir) > $@

all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)

$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST)
	$(QUIET_GEN)LDSHARED="$(CC) -pthread -shared" \
        CFLAGS='$(CFLAGS)' LDFLAGS='$(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS)' \
	  $(PYTHON_WORD) util/setup.py \
	  --quiet build_ext; \
	mkdir -p $(OUTPUT)python && \
	cp $(PYTHON_EXTBUILD_LIB)perf*.so $(OUTPUT)python/

please_set_SHELL_PATH_to_a_more_modern_shell:
	$(Q)$$(:)

shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell

strip: $(PROGRAMS) $(OUTPUT)perf
	$(STRIP) $(STRIP_OPTS) $(PROGRAMS) $(OUTPUT)perf

PERF_IN := $(OUTPUT)perf-in.o

JEVENTS       := $(OUTPUT)pmu-events/jevents
JEVENTS_IN    := $(OUTPUT)pmu-events/jevents-in.o

PMU_EVENTS_IN := $(OUTPUT)pmu-events/pmu-events-in.o

export JEVENTS

build := -f $(srctree)/tools/build/Makefile.build dir=. obj

$(PERF_IN): prepare FORCE
	$(Q)$(MAKE) $(build)=perf

$(JEVENTS_IN): FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=jevents

$(JEVENTS): $(JEVENTS_IN)
	$(QUIET_LINK)$(HOSTCC) $(JEVENTS_IN) -o $@

$(PMU_EVENTS_IN): $(JEVENTS) FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=pmu-events obj=pmu-events

$(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(PMU_EVENTS_IN) $(LIBTRACEEVENT_DYNAMIC_LIST)
	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS) \
		$(PERF_IN) $(PMU_EVENTS_IN) $(LIBS) -o $@

$(GTK_IN): FORCE
	$(Q)$(MAKE) $(build)=gtk

$(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS)
	$(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)

$(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt

$(OUTPUT)common-cmds.h: $(wildcard Documentation/perf-*.txt)
	$(QUIET_GEN). util/generate-cmdlist.sh > $@+ && mv $@+ $@

$(SCRIPTS) : % : %.sh
	$(QUIET_GEN)$(INSTALL) '$@.sh' '$(OUTPUT)$@'

$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
	$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
	$(Q)touch $(OUTPUT)PERF-VERSION-FILE

# These can record PERF_VERSION
perf.spec $(SCRIPTS) \
	: $(OUTPUT)PERF-VERSION-FILE

.SUFFIXES:

#
# If a target does not match any of the later rules then prefix it by $(OUTPUT)
# This makes targets like 'make O=/tmp/perf perf.o' work in a natural way.
#
ifneq ($(OUTPUT),)
%.o: $(OUTPUT)%.o
	@echo "    # Redirected target $@ => $(OUTPUT)$@"
pmu-events/%.o: $(OUTPUT)pmu-events/%.o
	@echo "    # Redirected target $@ => $(OUTPUT)$@"
util/%.o: $(OUTPUT)util/%.o
	@echo "    # Redirected target $@ => $(OUTPUT)$@"
bench/%.o: $(OUTPUT)bench/%.o
	@echo "    # Redirected target $@ => $(OUTPUT)$@"
tests/%.o: $(OUTPUT)tests/%.o
	@echo "    # Redirected target $@ => $(OUTPUT)$@"
endif

# These two need to be here so that when O= is not used they take precedence
# over the general rule for .o

# get relative building directory (to $(OUTPUT))
# and '.' if it's $(OUTPUT) itself
__build-dir = $(subst $(OUTPUT),,$(dir $@))
build-dir   = $(if $(__build-dir),$(__build-dir),.)

prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioctl_array) \
	$(pkey_alloc_access_rights_array) \
	$(sndrv_pcm_ioctl_array) \
	$(sndrv_ctl_ioctl_array) \
	$(kcmp_type_array) \
	$(kvm_ioctl_array) \
	$(socket_ipproto_array) \
	$(vhost_virtio_ioctl_array) \
	$(madvise_behavior_array) \
	$(mount_flags_array) \
	$(perf_ioctl_array) \
	$(prctl_option_array) \
	$(arch_errno_name_array)

$(OUTPUT)%.o: %.c prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%.i: %.c prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%.s: %.c prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%-bison.o: %.c prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%-flex.o: %.c prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%.o: %.S prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)%.i: %.S prepare FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@

$(OUTPUT)perf-%: %.o $(PERFLIBS)
	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)

ifndef NO_PERF_READ_VDSO32
$(OUTPUT)perf-read-vdso32: perf-read-vdso.c util/find-vdso-map.c
	$(QUIET_CC)$(CC) -m32 $(filter -static,$(LDFLAGS)) -Wall -Werror -o $@ perf-read-vdso.c
endif

ifndef NO_PERF_READ_VDSOX32
$(OUTPUT)perf-read-vdsox32: perf-read-vdso.c util/find-vdso-map.c
	$(QUIET_CC)$(CC) -mx32 $(filter -static,$(LDFLAGS)) -Wall -Werror -o $@ perf-read-vdso.c
endif

ifndef NO_JVMTI
LIBJVMTI_IN := $(OUTPUT)jvmti/jvmti-in.o

$(LIBJVMTI_IN): FORCE
	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=jvmti obj=jvmti

$(OUTPUT)$(LIBJVMTI): $(LIBJVMTI_IN)
	$(QUIET_LINK)$(CC) -shared -Wl,-soname -Wl,$(LIBJVMTI) -o $@ $<
endif

$(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)

LIBPERF_IN := $(OUTPUT)libperf-in.o

$(LIBPERF_IN): prepare FORCE
	$(Q)$(MAKE) $(build)=libperf

$(LIB_FILE): $(LIBPERF_IN)
	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN) $(LIB_OBJS)

LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ) 'EXTRA_CFLAGS=$(EXTRA_CFLAGS)' 'LDFLAGS=$(LDFLAGS)'

$(LIBTRACEEVENT): FORCE
	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a

libtraceevent_plugins: FORCE
	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) plugins

$(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins
	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent-dynamic-list

$(LIBTRACEEVENT)-clean:
	$(call QUIET_CLEAN, libtraceevent)
	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null

install-traceevent-plugins: libtraceevent_plugins
	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins

$(LIBAPI): FORCE
	$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a

$(LIBAPI)-clean:
	$(call QUIET_CLEAN, libapi)
	$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null

$(LIBBPF): FORCE
	$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) $(OUTPUT)libbpf.a FEATURES_DUMP=$(FEATURE_DUMP_EXPORT)

$(LIBBPF)-clean:
	$(call QUIET_CLEAN, libbpf)
	$(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) clean >/dev/null

$(LIBSUBCMD): FORCE
	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) $(OUTPUT)libsubcmd.a

$(LIBSUBCMD)-clean:
	$(call QUIET_CLEAN, libsubcmd)
	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) clean

help:
	@echo 'Perf make targets:'
	@echo '  doc		- make *all* documentation (see below)'
	@echo '  man		- make manpage documentation (access with man <foo>)'
	@echo '  html		- make html documentation'
	@echo '  info		- make GNU info documentation (access with info <foo>)'
	@echo '  pdf		- make pdf documentation'
	@echo '  TAGS		- use etags to make tag information for source browsing'
	@echo '  tags		- use ctags to make tag information for source browsing'
	@echo '  cscope	- use cscope to make interactive browsing database'
	@echo ''
	@echo 'Perf install targets:'
	@echo '  NOTE: documentation build requires asciidoc, xmlto packages to be installed'
	@echo '  HINT: use "prefix" or "DESTDIR" to install to a particular'
	@echo '        path like "make prefix=/usr/local install install-doc"'
	@echo '  install	- install compiled binaries'
	@echo '  install-doc	- install *all* documentation'
	@echo '  install-man	- install manpage documentation'
	@echo '  install-html	- install html documentation'
	@echo '  install-info	- install GNU info documentation'
	@echo '  install-pdf	- install pdf documentation'
	@echo ''
	@echo '  quick-install-doc	- alias for quick-install-man'
	@echo '  quick-install-man	- install the documentation quickly'
	@echo '  quick-install-html	- install the html documentation quickly'
	@echo ''
	@echo 'Perf maintainer targets:'
	@echo '  clean			- clean all binary objects and build output'


DOC_TARGETS := doc man html info pdf

INSTALL_DOC_TARGETS := $(patsubst %,install-%,$(DOC_TARGETS)) try-install-man
INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html

# 'make doc' should call 'make -C Documentation all'
$(DOC_TARGETS):
	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all)

TAG_FOLDERS= . ../lib ../include
TAG_FILES= ../../include/uapi/linux/perf_event.h

TAGS:
	$(QUIET_GEN)$(RM) TAGS; \
	$(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print -o -name '*.cpp' -print | xargs etags -a $(TAG_FILES)

tags:
	$(QUIET_GEN)$(RM) tags; \
	$(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print -o -name '*.cpp' -print | xargs ctags -a $(TAG_FILES)

cscope:
	$(QUIET_GEN)$(RM) cscope*; \
	$(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print -o -name '*.cpp' -print | xargs cscope -b $(TAG_FILES)

### Testing rules

# GNU make supports exporting all variables by "export" without parameters.
# However, the environment gets quite big, and some programs have problems
# with that.

check: $(OUTPUT)common-cmds.h
	if sparse; \
	then \
		for i in *.c */*.c; \
		do \
			sparse $(CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
		done; \
	else \
		exit 1; \
	fi

### Installation rules

ifndef NO_GTK2
install-gtk: $(OUTPUT)libperf-gtk.so
	$(call QUIET_INSTALL, 'GTK UI') \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'; \
		$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
else
install-gtk:
endif

install-tools: all install-gtk
	$(call QUIET_INSTALL, binaries) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'; \
		$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'; \
		$(LN) '$(DESTDIR_SQ)$(bindir_SQ)/perf' '$(DESTDIR_SQ)$(bindir_SQ)/trace'
ifndef NO_PERF_READ_VDSO32
	$(call QUIET_INSTALL, perf-read-vdso32) \
		$(INSTALL) $(OUTPUT)perf-read-vdso32 '$(DESTDIR_SQ)$(bindir_SQ)';
endif
ifndef NO_PERF_READ_VDSOX32
	$(call QUIET_INSTALL, perf-read-vdsox32) \
		$(INSTALL) $(OUTPUT)perf-read-vdsox32 '$(DESTDIR_SQ)$(bindir_SQ)';
endif
ifndef NO_JVMTI
	$(call QUIET_INSTALL, $(LIBJVMTI)) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'; \
		$(INSTALL) $(OUTPUT)$(LIBJVMTI) '$(DESTDIR_SQ)$(libdir_SQ)';
endif
	$(call QUIET_INSTALL, libexec) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
ifndef NO_LIBBPF
	$(call QUIET_INSTALL, bpf-headers) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf/linux'; \
		$(INSTALL) include/bpf/*.h -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf'; \
		$(INSTALL) include/bpf/linux/*.h -t '$(DESTDIR_SQ)$(perf_include_instdir_SQ)/bpf/linux'
	$(call QUIET_INSTALL, bpf-examples) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'; \
		$(INSTALL) examples/bpf/*.c -t '$(DESTDIR_SQ)$(perf_examples_instdir_SQ)/bpf'
endif
	$(call QUIET_INSTALL, perf-archive) \
		$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
	$(call QUIET_INSTALL, perf-with-kcore) \
		$(INSTALL) $(OUTPUT)perf-with-kcore -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
ifndef NO_LIBAUDIT
	$(call QUIET_INSTALL, strace/groups) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)'; \
		$(INSTALL) trace/strace/groups/* -t '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)'
endif
ifndef NO_LIBPERL
	$(call QUIET_INSTALL, perl-scripts) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \
		$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \
		$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'; \
		$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
endif
ifndef NO_LIBPYTHON
	$(call QUIET_INSTALL, python-scripts) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'; \
		$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'; \
		$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'; \
		$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
endif
	$(call QUIET_INSTALL, perf_completion-script) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'; \
		$(INSTALL) perf-completion.sh '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
	$(call QUIET_INSTALL, perf-tip) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(tip_instdir_SQ)'; \
		$(INSTALL) Documentation/tips.txt -t '$(DESTDIR_SQ)$(tip_instdir_SQ)'

install-tests: all install-gtk
	$(call QUIET_INSTALL, tests) \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'; \
		$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'; \
		$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell'; \
		$(INSTALL) tests/shell/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell'; \
		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'; \
		$(INSTALL) tests/shell/lib/*.sh '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/shell/lib'

install-bin: install-tools install-tests install-traceevent-plugins

install: install-bin try-install-man

install-python_ext:
	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'

# 'make install-doc' should call 'make -C Documentation install'
$(INSTALL_DOC_TARGETS):
	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:-doc=)

### Cleaning rules

#
# This is here, not in Makefile.config, because Makefile.config does
# not get included for the clean target:
#
config-clean:
	$(call QUIET_CLEAN, config)
	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ $(if $(OUTPUT),OUTPUT=$(OUTPUT)feature/,) clean >/dev/null

python-clean:
	$(python-clean)

clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean fixdep-clean python-clean
	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
	$(Q)$(RM) $(OUTPUT).config-detected
	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32 $(OUTPUT)pmu-events/jevents $(OUTPUT)$(LIBJVMTI).so
	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
		$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
		$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
		$(OUTPUT)pmu-events/pmu-events.c \
		$(OUTPUT)$(madvise_behavior_array) \
		$(OUTPUT)$(mount_flags_array) \
		$(OUTPUT)$(drm_ioctl_array) \
		$(OUTPUT)$(pkey_alloc_access_rights_array) \
		$(OUTPUT)$(sndrv_ctl_ioctl_array) \
		$(OUTPUT)$(sndrv_pcm_ioctl_array) \
		$(OUTPUT)$(kvm_ioctl_array) \
		$(OUTPUT)$(kcmp_type_array) \
		$(OUTPUT)$(socket_ipproto_array) \
		$(OUTPUT)$(vhost_virtio_ioctl_array) \
		$(OUTPUT)$(perf_ioctl_array) \
		$(OUTPUT)$(prctl_option_array) \
		$(OUTPUT)$(arch_errno_name_array)
	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean

#
# To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY)
# file if defined, with no further action.
feature-dump:
ifdef FEATURE_DUMP_COPY
	@cp $(OUTPUT)FEATURE-DUMP $(FEATURE_DUMP_COPY)
	@echo "FEATURE-DUMP file copied into $(FEATURE_DUMP_COPY)"
else
	@echo "FEATURE-DUMP file available in $(OUTPUT)FEATURE-DUMP"
endif

#
# Trick: if ../../.git does not exist - we are building out of tree for example,
# then force version regeneration:
#
ifeq ($(wildcard ../../.git/HEAD),)
    GIT-HEAD-PHONY = ../../.git/HEAD
else
    GIT-HEAD-PHONY =
endif

FORCE:

.PHONY: all install clean config-clean strip install-gtk
.PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE prepare
.PHONY: libtraceevent_plugins archheaders

endif # force_fixdep