poky/meta/recipes-kernel/perf/perf.bb - openbmc/openbmc - Gitiles

 SUMMARY = "Performance analysis tools for Linux"
 DESCRIPTION = "Performance counters for Linux are a new kernel-based \
 subsystem that provide a framework for all things \
 performance analysis. It covers hardware level \
 (CPU/PMU, Performance Monitoring Unit) features \
 and software features (software counters, tracepoints) \
 as well."
 HOMEPAGE = "https://perf.wiki.kernel.org/index.php/Main_Page"

 LICENSE = "GPL-2.0-only"

 PR = "r9"

 PACKAGECONFIG ??= "scripting tui libunwind"
 PACKAGECONFIG[dwarf] = ",NO_DWARF=1"
 PACKAGECONFIG[scripting] = ",NO_LIBPERL=1 NO_LIBPYTHON=1,perl python3"
 # gui support was added with kernel 3.6.35
 # since 3.10 libnewt was replaced by slang
 # to cover a wide range of kernel we add both dependencies
 PACKAGECONFIG[tui] = ",NO_NEWT=1,libnewt slang"
 PACKAGECONFIG[libunwind] = ",NO_LIBUNWIND=1 NO_LIBDW_DWARF_UNWIND=1,libunwind"
 PACKAGECONFIG[libnuma] = ",NO_LIBNUMA=1"
 PACKAGECONFIG[bfd] = ",NO_LIBBFD=1"
 PACKAGECONFIG[systemtap] = ",NO_SDT=1,systemtap"
 PACKAGECONFIG[jvmti] = ",NO_JVMTI=1"
 # libaudit support would need scripting to be enabled
 PACKAGECONFIG[audit] = ",NO_LIBAUDIT=1,audit"
 PACKAGECONFIG[manpages] = ",,xmlto-native asciidoc-native"
 PACKAGECONFIG[cap] = ",,libcap"
 # Arm CoreSight
 PACKAGECONFIG[coresight] = "CORESIGHT=1,,opencsd"

 # libunwind is not yet ported for some architectures
 PACKAGECONFIG:remove:arc = "libunwind"
 PACKAGECONFIG:remove:riscv32 = "libunwind"

 DEPENDS = " \
     virtual/${MLPREFIX}libc \
     ${MLPREFIX}elfutils \
     ${MLPREFIX}binutils \
     bison-native flex-native xz \
 "

 do_configure[depends] += "virtual/kernel:do_shared_workdir"

 PROVIDES = "virtual/perf"

 inherit linux-kernel-base kernel-arch manpages

 # needed for building the tools/perf Python bindings
 inherit ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'python3targetconfig', '', d)}
 inherit python3-dir
 export PYTHON_SITEPACKAGES_DIR

 #kernel 3.1+ supports WERROR to disable warnings as errors
 export WERROR = "0"

 do_populate_lic[depends] += "virtual/kernel:do_shared_workdir"

 # needed for building the tools/perf Perl binding
 include ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'perf-perl.inc', '', d)}

 inherit kernelsrc

 S = "${WORKDIR}/${BP}"
 SPDX_S = "${S}/tools/perf"

 # The LDFLAGS is required or some old kernels fails due missing
 # symbols and this is preferred than requiring patches to every old
 # supported kernel.
 LDFLAGS="-ldl -lutil"

 EXTRA_OEMAKE = '\
     V=1 \
     -C ${S}/tools/perf \
     O=${B} \
     CROSS_COMPILE=${TARGET_PREFIX} \
     ARCH=${ARCH} \
     CC="${CC}" \
     CCLD="${CC}" \
     LDSHARED="${CC} -shared" \
     AR="${AR}" \
     LD="${LD}" \
     EXTRA_CFLAGS="-ldw" \
     YFLAGS='-y --file-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}' \
     EXTRA_LDFLAGS="${PERF_EXTRA_LDFLAGS}" \
     perfexecdir=${libexecdir} \
     NO_GTK2=1 \
     ${PACKAGECONFIG_CONFARGS} \
     TMPDIR="${B}" \
     LIBUNWIND_DIR=${STAGING_EXECPREFIXDIR} \
 '

 EXTRA_OEMAKE += "\
     'DESTDIR=${D}' \
     'prefix=${prefix}' \
     'bindir=${bindir}' \
     'sharedir=${datadir}' \
     'sysconfdir=${sysconfdir}' \
     'perfexecdir=${libexecdir}/perf-core' \
     'ETC_PERFCONFIG=${@os.path.relpath(sysconfdir, prefix)}' \
     'sharedir=${@os.path.relpath(datadir, prefix)}' \
     'mandir=${@os.path.relpath(mandir, prefix)}' \
     'infodir=${@os.path.relpath(infodir, prefix)}' \
     ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'PYTHON=python3 PYTHON_CONFIG=python3-config', '', d)} \
 "

 # During do_configure, we might run a 'make clean'. That often breaks
 # when done in parallel, so disable parallelism for do_configure. Note
 # that it has to be done this way rather than by passing -j1, since
 # perf's build system by default ignores any -j argument, but does
 # honour a JOBS variable.
 EXTRA_OEMAKE:append:task-configure = " JOBS=1"

 PERF_SRC ?= "Makefile \
              tools/arch \
              tools/build \
              tools/include \
              tools/lib \
              tools/Makefile \
              tools/perf \
              tools/scripts \
              scripts/ \
              arch/${ARCH}/Makefile \
 "

 PERF_EXTRA_LDFLAGS = ""

 # MIPS N32/N64
 PERF_EXTRA_LDFLAGS:mipsarchn32eb = "-m elf32btsmipn32"
 PERF_EXTRA_LDFLAGS:mipsarchn32el = "-m elf32ltsmipn32"
 PERF_EXTRA_LDFLAGS:mipsarchn64eb = "-m elf64btsmip"
 PERF_EXTRA_LDFLAGS:mipsarchn64el = "-m elf64ltsmip"

 do_compile() {
 	# Linux kernel build system is expected to do the right thing
 	unset CFLAGS
 	oe_runmake all
 }

 do_install() {
 	# Linux kernel build system is expected to do the right thing
 	unset CFLAGS
 	oe_runmake install
 	# we are checking for this make target to be compatible with older perf versions
 	if ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'true', 'false', d)} && grep -q install-python_ext ${S}/tools/perf/Makefile*; then
 	    oe_runmake DESTDIR=${D} install-python_ext
 	fi
 }

 do_configure[prefuncs] += "copy_perf_source_from_kernel"
 python copy_perf_source_from_kernel() {
     sources = (d.getVar("PERF_SRC") or "").split()
     src_dir = d.getVar("STAGING_KERNEL_DIR")
     dest_dir = d.getVar("S")
     bb.utils.mkdirhier(dest_dir)
     bb.utils.prunedir(dest_dir)
     for s in sources:
         src = oe.path.join(src_dir, s)
         dest = oe.path.join(dest_dir, s)
         if not os.path.exists(src):
             bb.fatal("Path does not exist: %s. Maybe PERF_SRC does not match the kernel version." % src)
         if os.path.isdir(src):
             oe.path.copyhardlinktree(src, dest)
         else:
             src_path = os.path.dirname(s)
             os.makedirs(os.path.join(dest_dir,src_path),exist_ok=True)
             bb.utils.copyfile(src, dest)
 }

 do_configure:prepend () {
     # If building a multlib based perf, the incorrect library path will be
     # detected by perf, since it triggers via: ifeq ($(ARCH),x86_64). In a 32 bit
     # build, with a 64 bit multilib, the arch won't match and the detection of a
     # 64 bit build (and library) are not exected. To ensure that libraries are
     # installed to the correct location, we can use the weak assignment in the
     # config/Makefile.
     #
     # Also need to relocate .config-detected to $(OUTPUT)/config-detected
     # for kernel sources that do not already do this
     # as two builds (e.g. perf and lib32-perf from mutlilib can conflict
     # with each other if its in the shared source directory
     #
     if [ -e "${S}/tools/perf/config/Makefile" ]; then
         perfconfig="${S}/tools/perf/config/Makefile"
     fi
     if [ -e "${S}/tools/perf/Makefile.config" ]; then
         perfconfig="${S}/tools/perf/Makefile.config"
     fi
     if [ -n "${perfconfig}" ]; then
         # Match $(prefix)/$(lib) and $(prefix)/lib
         sed -i -e 's,^libdir = \($(prefix)/.*lib\),libdir ?= \1,' \
                -e 's,^perfexecdir = \(.*\),perfexecdir ?= \1,' \
                -e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
             ${perfconfig}
     fi
     # The man pages installation is "$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)"
     # in ${S}/tools/perf/Documentation/Makefile, if the mandir set to '?=', it
     # will use the relative path 'share/man', in the way it will resulting in
     # incorrect installation for man pages.
     if [ -e "${S}/tools/perf/Documentation/Makefile" ]; then
 	sed -i 's,^mandir?=,mandir:=,' ${S}/tools/perf/Documentation/Makefile
     fi
     if [ -e "${S}/tools/perf/Makefile.perf" ]; then
         sed -i -e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
             ${S}/tools/perf/Makefile.perf
         sed -i -e "s,prefix='\$(DESTDIR_SQ)/usr'$,prefix='\$(DESTDIR_SQ)/usr' --install-lib='\$(PYTHON_SITEPACKAGES_DIR)' --root='\$(DESTDIR)',g" \
             ${S}/tools/perf/Makefile.perf
         # backport https://github.com/torvalds/linux/commit/e4ffd066ff440a57097e9140fa9e16ceef905de8
         sed -i -e 's,\($(Q)$(SHELL) .$(arch_errno_tbl).\) $(CC) $(arch_errno_hdr_dir),\1 $(firstword $(CC)) $(arch_errno_hdr_dir),g' \
             ${S}/tools/perf/Makefile.perf
     fi
     sed -i -e "s,--root='/\$(DESTDIR_SQ)',--prefix='\$(DESTDIR_SQ)/usr' --install-lib='\$(DESTDIR)\$(PYTHON_SITEPACKAGES_DIR)',g" \
         ${S}/tools/perf/Makefile*

     if [ -e "${S}/tools/build/Makefile.build" ]; then
         sed -i -e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
             ${S}/tools/build/Makefile.build
     fi

     # start reproducibility substitutions
     if [ -e "${S}/tools/perf/Makefile.config" ]; then
         # The following line in the Makefle:
         #     override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
         # "PYTHON" / "PYTHON_AUTO" have the full path as part of the variable. We've
         # ensure that the environment is setup and we do not need the full path to be
         # captured, since the symbol gets built into the executable, making it not
         # reproducible.
         sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO)),$(notdir $(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO))),g' \
             ${S}/tools/perf/Makefile.config
         # The same line is in older releases, but looking explicitly for Python 2
         sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(PYTHON2)),$(notdir $(call get-executable-or-default\,PYTHON\,$(PYTHON2))),g' \
             ${S}/tools/perf/Makefile.config

 	# likewise with this substitution. Kernels with commit 18f2967418d031a39
 	# [perf tools: Use Python devtools for version autodetection rather than runtime]
 	# need this substitution for reproducibility.
 	sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO))),$(notdir $(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO)))),g' \
 	    ${S}/tools/perf/Makefile.config

         # The following line:
         #     srcdir_SQ = $(patsubst %tools/perf,tools/perf,$(subst ','\'',$(srcdir))),
         # Captures the full src path of perf, which of course makes it not
         # reproducible. We really only need the relative location 'tools/perf', so we
         # change the Makefile line to remove everything before 'tools/perf'
         sed -i -e "s%srcdir_SQ = \$(subst ','\\\'',\$(srcdir))%srcdir_SQ = \$(patsubst \%tools/perf,tools/perf,\$(subst ','\\\'',\$(srcdir)))%g" \
             ${S}/tools/perf/Makefile.config
     fi
     if [ -e "${S}/tools/perf/tests/Build" ]; then
         # OUTPUT is the full path, we have python on the path so we remove it from the
         # definition. This is captured in the perf binary, so breaks reproducibility
         sed -i -e 's,PYTHONPATH="BUILD_STR($(OUTPUT)python)",PYTHONPATH="BUILD_STR(python)",g' \
             ${S}/tools/perf/tests/Build
     fi
     if [ -e "${S}/tools/perf/util/Build" ]; then
         # To avoid bison generating #ifdefs that have captured paths, we make sure
         # all the calls have YFLAGS, which contains prefix mapping information.
         sed -i -e 's,$(BISON),$(BISON) $(YFLAGS),g' ${S}/tools/perf/util/Build
     fi
     if [ -e "${S}/scripts/Makefile.host" ]; then
         # To avoid yacc (bison) generating #ifdefs that have captured paths, we make sure
         # all the calls have YFLAGS, which contains prefix mapping information.
         sed -i -e 's,$(YACC),$(YACC) $(YFLAGS),g' ${S}/scripts/Makefile.host
     fi
     if [ -e "${S}/tools/perf/pmu-events/Build" ]; then
         target='$(OUTPUT)pmu-events/pmu-events.c $(V)'
         replacement1='$(OUTPUT)pmu-events/pmu-events.c $(V)\n'
         replacement2='\t$(srctree)/sort-pmuevents.py $(OUTPUT)pmu-events/pmu-events.c $(OUTPUT)pmu-events/pmu-events.c.new\n'
         replacement3='\tcp $(OUTPUT)pmu-events/pmu-events.c.new $(OUTPUT)pmu-events/pmu-events.c'
         sed -i -e "s,$target,$replacement1$replacement2$replacement3,g" \
                        "${S}/tools/perf/pmu-events/Build"
     fi
     # end reproducibility substitutions

     # We need to ensure the --sysroot option in CC is preserved
     if [ -e "${S}/tools/perf/Makefile.perf" ]; then
         sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/perf/Makefile.perf
         sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/perf/Makefile.perf
         sed -i 's,LD = $(CROSS_COMPILE)ld,#LD,' ${S}/tools/perf/Makefile.perf
     fi
     if [ -e "${S}/tools/lib/api/Makefile" ]; then
         sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/lib/api/Makefile
         sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/lib/api/Makefile
         sed -i 's,LD = $(CROSS_COMPILE)ld,#LD,' ${S}/tools/lib/api/Makefile
     fi
     if [ -e "${S}/tools/lib/subcmd/Makefile" ]; then
         sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/lib/subcmd/Makefile
         sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/lib/subcmd/Makefile
     fi
     if [ -e "${S}/tools/perf/config/feature-checks/Makefile" ]; then
         sed -i 's,CC := $(CROSS_COMPILE)gcc -MD,CC += -MD,' ${S}/tools/perf/config/feature-checks/Makefile
     fi
     if [ -e "${S}/tools/build/Makefile.feature" ]; then
         sed -i 's,CFLAGS=,CC="\$(CC)" CFLAGS=,' ${S}/tools/build/Makefile.feature
     fi

     # 3.17-rc1+ has a include issue for arm/powerpc. Temporarily sed in the appropriate include
     if [ -e "${S}/tools/perf/arch/$ARCH/util/skip-callchain-idx.c" ]; then
         sed -i 's,#include "util/callchain.h",#include "util/callchain.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/$ARCH/util/skip-callchain-idx.c
     fi
     if [ -e "${S}/tools/perf/arch/arm/util/unwind-libunwind.c" ] && [ -e "${S}/tools/perf/arch/arm/tests/dwarf-unwind.c" ]; then
         sed -i 's,#include "tests/tests.h",#include "tests/tests.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/arm/tests/dwarf-unwind.c
         sed -i 's,#include "perf_regs.h",#include "perf_regs.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/arm/util/unwind-libunwind.c
     fi

     # use /usr/bin/env instead of version specific python
     for s in `find ${S}/tools/perf/ -name '*.py'` `find ${S}/scripts/ -name 'bpf_helpers_doc.py'`; do
         sed -i -e "s,#!.*python.*,#!${USRBINPATH}/env python3," ${s}
     done

     # unistd.h can be out of sync between libc-headers and the captured version in the perf source
     # so we copy it from the sysroot unistd.h to the perf unistd.h
     install -D -m0644 ${STAGING_INCDIR}/asm-generic/unistd.h ${S}/tools/include/uapi/asm-generic/unistd.h
     install -D -m0644 ${STAGING_INCDIR}/asm-generic/unistd.h ${S}/include/uapi/asm-generic/unistd.h

     # the fetcher is inhibited by the 'inherit kernelsrc', so we do a quick check and
     # copy for a helper script we need
     for p in $(echo ${FILESPATH} | tr ':' '\n'); do
 	if [ -e $p/sort-pmuevents.py ]; then
 	    cp $p/sort-pmuevents.py ${S}
 	fi
     done
 }

 python do_package:prepend() {
     d.setVar('PKGV', d.getVar("KERNEL_VERSION").split("-")[0])
 }

 PACKAGE_ARCH = "${MACHINE_ARCH}"


 PACKAGES =+ "${PN}-archive ${PN}-tests ${PN}-perl ${PN}-python"

 RDEPENDS:${PN} += "elfutils bash"
 RDEPENDS:${PN}-archive =+ "bash"
 RDEPENDS:${PN}-python =+ "bash python3 python3-modules ${@bb.utils.contains('PACKAGECONFIG', 'audit', 'audit-python', '', d)}"
 RDEPENDS:${PN}-perl =+ "bash perl perl-modules"
 RDEPENDS:${PN}-tests =+ "python3 bash"

 RSUGGESTS_SCRIPTING = "${@bb.utils.contains('PACKAGECONFIG', 'scripting', '${PN}-perl ${PN}-python', '',d)}"
 RSUGGESTS:${PN} += "${PN}-archive ${PN}-tests ${RSUGGESTS_SCRIPTING}"

 FILES_SOLIBSDEV = ""
 FILES:${PN} += "${libexecdir}/perf-core ${exec_prefix}/libexec/perf-core ${libdir}/traceevent ${libdir}/libperf-jvmti.so"
 FILES:${PN}-archive = "${libdir}/perf/perf-core/perf-archive"
 FILES:${PN}-tests = "${libdir}/perf/perf-core/tests ${libexecdir}/perf-core/tests"
 FILES:${PN}-python = " \
                        ${PYTHON_SITEPACKAGES_DIR} \
                        ${libexecdir}/perf-core/scripts/python \
                        "
 FILES:${PN}-perl = "${libexecdir}/perf-core/scripts/perl"


 INHIBIT_PACKAGE_DEBUG_SPLIT="1"
 DEBUG_OPTIMIZATION:append = " -Wno-error=maybe-uninitialized"
	SUMMARY = "Performance analysis tools for Linux"
	DESCRIPTION = "Performance counters for Linux are a new kernel-based \
	subsystem that provide a framework for all things \
	performance analysis. It covers hardware level \
	(CPU/PMU, Performance Monitoring Unit) features \
	and software features (software counters, tracepoints) \
	as well."
	HOMEPAGE = "https://perf.wiki.kernel.org/index.php/Main_Page"

	LICENSE = "GPL-2.0-only"

	PR = "r9"

	PACKAGECONFIG ??= "scripting tui libunwind"
	PACKAGECONFIG[dwarf] = ",NO_DWARF=1"
	PACKAGECONFIG[scripting] = ",NO_LIBPERL=1 NO_LIBPYTHON=1,perl python3"
	# gui support was added with kernel 3.6.35
	# since 3.10 libnewt was replaced by slang
	# to cover a wide range of kernel we add both dependencies
	PACKAGECONFIG[tui] = ",NO_NEWT=1,libnewt slang"
	PACKAGECONFIG[libunwind] = ",NO_LIBUNWIND=1 NO_LIBDW_DWARF_UNWIND=1,libunwind"
	PACKAGECONFIG[libnuma] = ",NO_LIBNUMA=1"
	PACKAGECONFIG[bfd] = ",NO_LIBBFD=1"
	PACKAGECONFIG[systemtap] = ",NO_SDT=1,systemtap"
	PACKAGECONFIG[jvmti] = ",NO_JVMTI=1"
	# libaudit support would need scripting to be enabled
	PACKAGECONFIG[audit] = ",NO_LIBAUDIT=1,audit"
	PACKAGECONFIG[manpages] = ",,xmlto-native asciidoc-native"
	PACKAGECONFIG[cap] = ",,libcap"
	# Arm CoreSight
	PACKAGECONFIG[coresight] = "CORESIGHT=1,,opencsd"

	# libunwind is not yet ported for some architectures
	PACKAGECONFIG:remove:arc = "libunwind"
	PACKAGECONFIG:remove:riscv32 = "libunwind"

	DEPENDS = " \
	virtual/${MLPREFIX}libc \
	${MLPREFIX}elfutils \
	${MLPREFIX}binutils \
	bison-native flex-native xz \
	"

	do_configure[depends] += "virtual/kernel:do_shared_workdir"

	PROVIDES = "virtual/perf"

	inherit linux-kernel-base kernel-arch manpages

	# needed for building the tools/perf Python bindings
	inherit ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'python3targetconfig', '', d)}
	inherit python3-dir
	export PYTHON_SITEPACKAGES_DIR

	#kernel 3.1+ supports WERROR to disable warnings as errors
	export WERROR = "0"

	do_populate_lic[depends] += "virtual/kernel:do_shared_workdir"

	# needed for building the tools/perf Perl binding
	include ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'perf-perl.inc', '', d)}

	inherit kernelsrc

	S = "${WORKDIR}/${BP}"
	SPDX_S = "${S}/tools/perf"

	# The LDFLAGS is required or some old kernels fails due missing
	# symbols and this is preferred than requiring patches to every old
	# supported kernel.
	LDFLAGS="-ldl -lutil"

	EXTRA_OEMAKE = '\
	V=1 \
	-C ${S}/tools/perf \
	O=${B} \
	CROSS_COMPILE=${TARGET_PREFIX} \
	ARCH=${ARCH} \
	CC="${CC}" \
	CCLD="${CC}" \
	LDSHARED="${CC} -shared" \
	AR="${AR}" \
	LD="${LD}" \
	EXTRA_CFLAGS="-ldw" \
	YFLAGS='-y --file-prefix-map=${WORKDIR}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}' \
	EXTRA_LDFLAGS="${PERF_EXTRA_LDFLAGS}" \
	perfexecdir=${libexecdir} \
	NO_GTK2=1 \
	${PACKAGECONFIG_CONFARGS} \
	TMPDIR="${B}" \
	LIBUNWIND_DIR=${STAGING_EXECPREFIXDIR} \
	'

	EXTRA_OEMAKE += "\
	'DESTDIR=${D}' \
	'prefix=${prefix}' \
	'bindir=${bindir}' \
	'sharedir=${datadir}' \
	'sysconfdir=${sysconfdir}' \
	'perfexecdir=${libexecdir}/perf-core' \
	'ETC_PERFCONFIG=${@os.path.relpath(sysconfdir, prefix)}' \
	'sharedir=${@os.path.relpath(datadir, prefix)}' \
	'mandir=${@os.path.relpath(mandir, prefix)}' \
	'infodir=${@os.path.relpath(infodir, prefix)}' \
	${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'PYTHON=python3 PYTHON_CONFIG=python3-config', '', d)} \
	"

	# During do_configure, we might run a 'make clean'. That often breaks
	# when done in parallel, so disable parallelism for do_configure. Note
	# that it has to be done this way rather than by passing -j1, since
	# perf's build system by default ignores any -j argument, but does
	# honour a JOBS variable.
	EXTRA_OEMAKE:append:task-configure = " JOBS=1"

	PERF_SRC ?= "Makefile \
	tools/arch \
	tools/build \
	tools/include \
	tools/lib \
	tools/Makefile \
	tools/perf \
	tools/scripts \
	scripts/ \
	arch/${ARCH}/Makefile \
	"

	PERF_EXTRA_LDFLAGS = ""

	# MIPS N32/N64
	PERF_EXTRA_LDFLAGS:mipsarchn32eb = "-m elf32btsmipn32"
	PERF_EXTRA_LDFLAGS:mipsarchn32el = "-m elf32ltsmipn32"
	PERF_EXTRA_LDFLAGS:mipsarchn64eb = "-m elf64btsmip"
	PERF_EXTRA_LDFLAGS:mipsarchn64el = "-m elf64ltsmip"

	do_compile() {
	# Linux kernel build system is expected to do the right thing
	unset CFLAGS
	oe_runmake all
	}

	do_install() {
	# Linux kernel build system is expected to do the right thing
	unset CFLAGS
	oe_runmake install
	# we are checking for this make target to be compatible with older perf versions
	if ${@bb.utils.contains('PACKAGECONFIG', 'scripting', 'true', 'false', d)} && grep -q install-python_ext ${S}/tools/perf/Makefile*; then
	oe_runmake DESTDIR=${D} install-python_ext
	fi
	}

	do_configure[prefuncs] += "copy_perf_source_from_kernel"
	python copy_perf_source_from_kernel() {
	sources = (d.getVar("PERF_SRC") or "").split()
	src_dir = d.getVar("STAGING_KERNEL_DIR")
	dest_dir = d.getVar("S")
	bb.utils.mkdirhier(dest_dir)
	bb.utils.prunedir(dest_dir)
	for s in sources:
	src = oe.path.join(src_dir, s)
	dest = oe.path.join(dest_dir, s)
	if not os.path.exists(src):
	bb.fatal("Path does not exist: %s. Maybe PERF_SRC does not match the kernel version." % src)
	if os.path.isdir(src):
	oe.path.copyhardlinktree(src, dest)
	else:
	src_path = os.path.dirname(s)
	os.makedirs(os.path.join(dest_dir,src_path),exist_ok=True)
	bb.utils.copyfile(src, dest)
	}

	do_configure:prepend () {
	# If building a multlib based perf, the incorrect library path will be
	# detected by perf, since it triggers via: ifeq ($(ARCH),x86_64). In a 32 bit
	# build, with a 64 bit multilib, the arch won't match and the detection of a
	# 64 bit build (and library) are not exected. To ensure that libraries are
	# installed to the correct location, we can use the weak assignment in the
	# config/Makefile.
	#
	# Also need to relocate .config-detected to $(OUTPUT)/config-detected
	# for kernel sources that do not already do this
	# as two builds (e.g. perf and lib32-perf from mutlilib can conflict
	# with each other if its in the shared source directory
	#
	if [ -e "${S}/tools/perf/config/Makefile" ]; then
	perfconfig="${S}/tools/perf/config/Makefile"
	fi
	if [ -e "${S}/tools/perf/Makefile.config" ]; then
	perfconfig="${S}/tools/perf/Makefile.config"
	fi
	if [ -n "${perfconfig}" ]; then
	# Match $(prefix)/$(lib) and $(prefix)/lib
	sed -i -e 's,^libdir = \($(prefix)/.*lib\),libdir ?= \1,' \
	-e 's,^perfexecdir = \(.*\),perfexecdir ?= \1,' \
	-e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
	${perfconfig}
	fi
	# The man pages installation is "$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)"
	# in ${S}/tools/perf/Documentation/Makefile, if the mandir set to '?=', it
	# will use the relative path 'share/man', in the way it will resulting in
	# incorrect installation for man pages.
	if [ -e "${S}/tools/perf/Documentation/Makefile" ]; then
	sed -i 's,^mandir?=,mandir:=,' ${S}/tools/perf/Documentation/Makefile
	fi
	if [ -e "${S}/tools/perf/Makefile.perf" ]; then
	sed -i -e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
	${S}/tools/perf/Makefile.perf
	sed -i -e "s,prefix='\$(DESTDIR_SQ)/usr'$,prefix='\$(DESTDIR_SQ)/usr' --install-lib='\$(PYTHON_SITEPACKAGES_DIR)' --root='\$(DESTDIR)',g" \
	${S}/tools/perf/Makefile.perf
	# backport https://github.com/torvalds/linux/commit/e4ffd066ff440a57097e9140fa9e16ceef905de8
	sed -i -e 's,\($(Q)$(SHELL) .$(arch_errno_tbl).\) $(CC) $(arch_errno_hdr_dir),\1 $(firstword $(CC)) $(arch_errno_hdr_dir),g' \
	${S}/tools/perf/Makefile.perf
	fi
	sed -i -e "s,--root='/\$(DESTDIR_SQ)',--prefix='\$(DESTDIR_SQ)/usr' --install-lib='\$(DESTDIR)\$(PYTHON_SITEPACKAGES_DIR)',g" \
	${S}/tools/perf/Makefile*

	if [ -e "${S}/tools/build/Makefile.build" ]; then
	sed -i -e 's,\ .config-detected, $(OUTPUT)/config-detected,g' \
	${S}/tools/build/Makefile.build
	fi

	# start reproducibility substitutions
	if [ -e "${S}/tools/perf/Makefile.config" ]; then
	# The following line in the Makefle:
	# override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
	# "PYTHON" / "PYTHON_AUTO" have the full path as part of the variable. We've
	# ensure that the environment is setup and we do not need the full path to be
	# captured, since the symbol gets built into the executable, making it not
	# reproducible.
	sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO)),$(notdir $(call get-executable-or-default\,PYTHON\,$(PYTHON_AUTO))),g' \
	${S}/tools/perf/Makefile.config
	# The same line is in older releases, but looking explicitly for Python 2
	sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(PYTHON2)),$(notdir $(call get-executable-or-default\,PYTHON\,$(PYTHON2))),g' \
	${S}/tools/perf/Makefile.config

	# likewise with this substitution. Kernels with commit 18f2967418d031a39
	# [perf tools: Use Python devtools for version autodetection rather than runtime]
	# need this substitution for reproducibility.
	sed -i -e 's,$(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO))),$(notdir $(call get-executable-or-default\,PYTHON\,$(subst -config\,\,$(PYTHON_AUTO)))),g' \
	${S}/tools/perf/Makefile.config

	# The following line:
	# srcdir_SQ = $(patsubst %tools/perf,tools/perf,$(subst ','\'',$(srcdir))),
	# Captures the full src path of perf, which of course makes it not
	# reproducible. We really only need the relative location 'tools/perf', so we
	# change the Makefile line to remove everything before 'tools/perf'
	sed -i -e "s%srcdir_SQ = \$(subst ','\\\'',\$(srcdir))%srcdir_SQ = \$(patsubst \%tools/perf,tools/perf,\$(subst ','\\\'',\$(srcdir)))%g" \
	${S}/tools/perf/Makefile.config
	fi
	if [ -e "${S}/tools/perf/tests/Build" ]; then
	# OUTPUT is the full path, we have python on the path so we remove it from the
	# definition. This is captured in the perf binary, so breaks reproducibility
	sed -i -e 's,PYTHONPATH="BUILD_STR($(OUTPUT)python)",PYTHONPATH="BUILD_STR(python)",g' \
	${S}/tools/perf/tests/Build
	fi
	if [ -e "${S}/tools/perf/util/Build" ]; then
	# To avoid bison generating #ifdefs that have captured paths, we make sure
	# all the calls have YFLAGS, which contains prefix mapping information.
	sed -i -e 's,$(BISON),$(BISON) $(YFLAGS),g' ${S}/tools/perf/util/Build
	fi
	if [ -e "${S}/scripts/Makefile.host" ]; then
	# To avoid yacc (bison) generating #ifdefs that have captured paths, we make sure
	# all the calls have YFLAGS, which contains prefix mapping information.
	sed -i -e 's,$(YACC),$(YACC) $(YFLAGS),g' ${S}/scripts/Makefile.host
	fi
	if [ -e "${S}/tools/perf/pmu-events/Build" ]; then
	target='$(OUTPUT)pmu-events/pmu-events.c $(V)'
	replacement1='$(OUTPUT)pmu-events/pmu-events.c $(V)\n'
	replacement2='\t$(srctree)/sort-pmuevents.py $(OUTPUT)pmu-events/pmu-events.c $(OUTPUT)pmu-events/pmu-events.c.new\n'
	replacement3='\tcp $(OUTPUT)pmu-events/pmu-events.c.new $(OUTPUT)pmu-events/pmu-events.c'
	sed -i -e "s,$target,$replacement1$replacement2$replacement3,g" \
	"${S}/tools/perf/pmu-events/Build"
	fi
	# end reproducibility substitutions

	# We need to ensure the --sysroot option in CC is preserved
	if [ -e "${S}/tools/perf/Makefile.perf" ]; then
	sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/perf/Makefile.perf
	sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/perf/Makefile.perf
	sed -i 's,LD = $(CROSS_COMPILE)ld,#LD,' ${S}/tools/perf/Makefile.perf
	fi
	if [ -e "${S}/tools/lib/api/Makefile" ]; then
	sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/lib/api/Makefile
	sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/lib/api/Makefile
	sed -i 's,LD = $(CROSS_COMPILE)ld,#LD,' ${S}/tools/lib/api/Makefile
	fi
	if [ -e "${S}/tools/lib/subcmd/Makefile" ]; then
	sed -i 's,CC = $(CROSS_COMPILE)gcc,#CC,' ${S}/tools/lib/subcmd/Makefile
	sed -i 's,AR = $(CROSS_COMPILE)ar,#AR,' ${S}/tools/lib/subcmd/Makefile
	fi
	if [ -e "${S}/tools/perf/config/feature-checks/Makefile" ]; then
	sed -i 's,CC := $(CROSS_COMPILE)gcc -MD,CC += -MD,' ${S}/tools/perf/config/feature-checks/Makefile
	fi
	if [ -e "${S}/tools/build/Makefile.feature" ]; then
	sed -i 's,CFLAGS=,CC="\$(CC)" CFLAGS=,' ${S}/tools/build/Makefile.feature
	fi

	# 3.17-rc1+ has a include issue for arm/powerpc. Temporarily sed in the appropriate include
	if [ -e "${S}/tools/perf/arch/$ARCH/util/skip-callchain-idx.c" ]; then
	sed -i 's,#include "util/callchain.h",#include "util/callchain.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/$ARCH/util/skip-callchain-idx.c
	fi
	if [ -e "${S}/tools/perf/arch/arm/util/unwind-libunwind.c" ] && [ -e "${S}/tools/perf/arch/arm/tests/dwarf-unwind.c" ]; then
	sed -i 's,#include "tests/tests.h",#include "tests/tests.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/arm/tests/dwarf-unwind.c
	sed -i 's,#include "perf_regs.h",#include "perf_regs.h"\n#include "util/debug.h",' ${S}/tools/perf/arch/arm/util/unwind-libunwind.c
	fi

	# use /usr/bin/env instead of version specific python
	for s in `find ${S}/tools/perf/ -name '*.py'` `find ${S}/scripts/ -name 'bpf_helpers_doc.py'`; do
	sed -i -e "s,#!.python.,#!${USRBINPATH}/env python3," ${s}
	done

	# unistd.h can be out of sync between libc-headers and the captured version in the perf source
	# so we copy it from the sysroot unistd.h to the perf unistd.h
	install -D -m0644 ${STAGING_INCDIR}/asm-generic/unistd.h ${S}/tools/include/uapi/asm-generic/unistd.h
	install -D -m0644 ${STAGING_INCDIR}/asm-generic/unistd.h ${S}/include/uapi/asm-generic/unistd.h

	# the fetcher is inhibited by the 'inherit kernelsrc', so we do a quick check and
	# copy for a helper script we need
	for p in $(echo ${FILESPATH} \| tr ':' '\n'); do
	if [ -e $p/sort-pmuevents.py ]; then
	cp $p/sort-pmuevents.py ${S}
	fi
	done
	}

	python do_package:prepend() {
	d.setVar('PKGV', d.getVar("KERNEL_VERSION").split("-")[0])
	}

	PACKAGE_ARCH = "${MACHINE_ARCH}"


	PACKAGES =+ "${PN}-archive ${PN}-tests ${PN}-perl ${PN}-python"

	RDEPENDS:${PN} += "elfutils bash"
	RDEPENDS:${PN}-archive =+ "bash"
	RDEPENDS:${PN}-python =+ "bash python3 python3-modules ${@bb.utils.contains('PACKAGECONFIG', 'audit', 'audit-python', '', d)}"
	RDEPENDS:${PN}-perl =+ "bash perl perl-modules"
	RDEPENDS:${PN}-tests =+ "python3 bash"

	RSUGGESTS_SCRIPTING = "${@bb.utils.contains('PACKAGECONFIG', 'scripting', '${PN}-perl ${PN}-python', '',d)}"
	RSUGGESTS:${PN} += "${PN}-archive ${PN}-tests ${RSUGGESTS_SCRIPTING}"

	FILES_SOLIBSDEV = ""
	FILES:${PN} += "${libexecdir}/perf-core ${exec_prefix}/libexec/perf-core ${libdir}/traceevent ${libdir}/libperf-jvmti.so"
	FILES:${PN}-archive = "${libdir}/perf/perf-core/perf-archive"
	FILES:${PN}-tests = "${libdir}/perf/perf-core/tests ${libexecdir}/perf-core/tests"
	FILES:${PN}-python = " \
	${PYTHON_SITEPACKAGES_DIR} \
	${libexecdir}/perf-core/scripts/python \
	"
	FILES:${PN}-perl = "${libexecdir}/perf-core/scripts/perl"


	INHIBIT_PACKAGE_DEBUG_SPLIT="1"
	DEBUG_OPTIMIZATION:append = " -Wno-error=maybe-uninitialized"