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Message-ID: <20190930122335.GF9622@kernel.org>
Date: Mon, 30 Sep 2019 09:23:35 -0300
From: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To: Ian Rogers <irogers@...gle.com>
Cc: Jiri Olsa <jolsa@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2] perf tools: avoid sample_reg_masks being const + weak
Em Sun, Sep 29, 2019 at 11:05:14PM +0200, Jiri Olsa escreveu:
> On Fri, Sep 27, 2019 at 02:43:41PM -0700, Ian Rogers wrote:
> > Being const + weak breaks with some compilers that constant-propagate
> > from the weak symbol. This behavior is outside of the specification, but
> > in LLVM is chosen to match GCC's behavior.
> >
> > LLVM's implementation was set in this patch:
> > https://github.com/llvm/llvm-project/commit/f49573d1eedcf1e44893d5a062ac1b72c8419646
> > A const + weak symbol is set to be weak_odr:
> > https://llvm.org/docs/LangRef.html
> > ODR is one definition rule, and given there is one constant definition
> > constant-propagation is possible. It is possible to get this code to
> > miscompile with LLVM when applying link time optimization. As compilers
> > become more aggressive, this is likely to break in more instances.
> >
> > Move the definition of sample_reg_masks to the conditional part of
> > perf_regs.h and guard usage with HAVE_PERF_REGS_SUPPORT. This avoids the
> > weak symbol.
> >
> > Fix an issue when HAVE_PERF_REGS_SUPPORT isn't defined from patch v1.
> >
> > Signed-off-by: Ian Rogers <irogers@...gle.com>
>
> Acked-by: Jiri Olsa <jolsa@...nel.org>
Breaks the build on arm64, I'm removing it from perf/urgent till this gets settled.
LINK /tmp/build/perf/perf
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `__parse_regs':
/git/linux/tools/perf/util/parse-regs-options.c:39: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:47: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:60: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:50: undefined reference to `sample_reg_masks'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile.perf:609: /tmp/build/perf/perf] Error 1
make[1]: *** [Makefile.perf:221: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[root@...co ~]#
Complete output:
[root@...co ~]# cat dm.log/debian\:experimental-x-arm64
debian:experimental-x-arm64
Downloading http://192.168.124.1/perf/perf-5.3.0.tar.xz...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1646k 100 1646k 0 0 803M 0 --:--:-- --:--:-- --:--:-- 803M
d6bf2b2334abdabfe14cbc7cb161ba72b515e11d
Using built-in specs.
COLLECT_GCC=aarch64-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/aarch64-linux-gnu/8/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-19' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --disable-libphobos --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=aarch64-linux-gnu --program-prefix=aarch64-linux-gnu- --includedir=/usr/aarch64-linux-gnu/include --with-build-config=bootstrap-lto --enable-link-mutex
Thread model: posix
gcc version 8.3.0 (Debian 8.3.0-19)
+ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- EXTRA_CFLAGS= -C /git/linux/tools/perf O=/tmp/build/perf
make: Entering directory '/git/linux/tools/perf'
BUILD: Doing 'make -j8' parallel build
HOSTCC /tmp/build/perf/fixdep.o
HOSTLD /tmp/build/perf/fixdep-in.o
LINK /tmp/build/perf/fixdep
sh: 1: command: Illegal option -c
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ OFF ]
... libaudit: [ on ]
... libbfd: [ OFF ]
... libcap: [ OFF ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ OFF ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ OFF ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ OFF ]
... disassembler-four-args: [ OFF ]
Makefile.config:670: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev
Makefile.config:724: No python interpreter was found: disables Python support - please install python-devel/python-dev
Makefile.config:782: No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling
Makefile.config:826: No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR
Makefile.config:837: No libcap found, disables capability support, please install libcap-devel/libcap-dev
Makefile.config:905: No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev
Makefile.config:931: No alternatives command found, you need to set JDIR= to point to the root of your Java directory
GEN /tmp/build/perf/common-cmds.h
PERF_VERSION = 5.3.gd6bf2b2334ab
CC /tmp/build/perf/exec-cmd.o
MKDIR /tmp/build/perf/fd/
CC /tmp/build/perf/fd/array.o
CC /tmp/build/perf/event-parse.o
CC /tmp/build/perf/core.o
CC /tmp/build/perf/event-plugin.o
CC /tmp/build/perf/libbpf.o
CC /tmp/build/perf/trace-seq.o
CC /tmp/build/perf/cpumap.o
CC /tmp/build/perf/threadmap.o
LD /tmp/build/perf/fd/libapi-in.o
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/fs/fs.o
CC /tmp/build/perf/evsel.o
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/bpf.o
CC /tmp/build/perf/fs/tracing_path.o
CC /tmp/build/perf/evlist.o
CC /tmp/build/perf/help.o
CC /tmp/build/perf/zalloc.o
CC /tmp/build/perf/xyarray.o
LD /tmp/build/perf/fs/libapi-in.o
CC /tmp/build/perf/lib.o
CC /tmp/build/perf/cpu.o
CC /tmp/build/perf/debug.o
CC /tmp/build/perf/nlattr.o
CC /tmp/build/perf/btf.o
LD /tmp/build/perf/libperf-in.o
AR /tmp/build/perf/libperf.a
CC /tmp/build/perf/str_error_r.o
CC /tmp/build/perf/libbpf_errno.o
CC /tmp/build/perf/str_error.o
CC /tmp/build/perf/netlink.o
LD /tmp/build/perf/libapi-in.o
CC /tmp/build/perf/bpf_prog_linfo.o
AR /tmp/build/perf/libapi.a
CC /tmp/build/perf/libbpf_probes.o
CC /tmp/build/perf/pager.o
CC /tmp/build/perf/parse-options.o
CC /tmp/build/perf/parse-filter.o
CC /tmp/build/perf/run-command.o
CC /tmp/build/perf/xsk.o
CC /tmp/build/perf/sigchain.o
CC /tmp/build/perf/hashmap.o
CC /tmp/build/perf/subcmd-config.o
CC /tmp/build/perf/btf_dump.o
CC /tmp/build/perf/parse-utils.o
CC /tmp/build/perf/kbuffer-parse.o
CC /tmp/build/perf/tep_strerror.o
CC /tmp/build/perf/event-parse-api.o
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/json.o
GEN perf-archive
GEN perf-with-kcore
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/jsmn.o
DESCEND plugins
HOSTCC /tmp/build/perf/pmu-events/jevents.o
LD /tmp/build/perf/libtraceevent-in.o
LINK /tmp/build/perf/libtraceevent.a
CC /tmp/build/perf/plugins/plugin_jbd2.o
CC /tmp/build/perf/plugins/plugin_hrtimer.o
CC /tmp/build/perf/plugins/plugin_kmem.o
CC /tmp/build/perf/plugins/plugin_kvm.o
LD /tmp/build/perf/libbpf-in.o
LINK /tmp/build/perf/libbpf.a
CC /tmp/build/perf/plugins/plugin_mac80211.o
LD /tmp/build/perf/plugins/plugin_jbd2-in.o
LD /tmp/build/perf/plugins/plugin_hrtimer-in.o
CC /tmp/build/perf/plugins/plugin_sched_switch.o
CC /tmp/build/perf/plugins/plugin_function.o
LD /tmp/build/perf/plugins/plugin_kmem-in.o
CC /tmp/build/perf/plugins/plugin_xen.o
LD /tmp/build/perf/plugins/plugin_kvm-in.o
LD /tmp/build/perf/plugins/plugin_mac80211-in.o
CC /tmp/build/perf/plugins/plugin_scsi.o
HOSTLD /tmp/build/perf/pmu-events/jevents-in.o
CC /tmp/build/perf/plugins/plugin_cfg80211.o
LINK /tmp/build/perf/pmu-events/jevents
LD /tmp/build/perf/plugins/plugin_sched_switch-in.o
LD /tmp/build/perf/plugins/plugin_function-in.o
LD /tmp/build/perf/plugins/plugin_xen-in.o
LINK /tmp/build/perf/plugins/plugin_jbd2.so
LINK /tmp/build/perf/plugins/plugin_hrtimer.so
LINK /tmp/build/perf/plugins/plugin_kmem.so
GEN /tmp/build/perf/pmu-events/pmu-events.c
LINK /tmp/build/perf/plugins/plugin_kvm.so
LINK /tmp/build/perf/plugins/plugin_mac80211.so
CC /tmp/build/perf/pmu-events/pmu-events.o
LINK /tmp/build/perf/plugins/plugin_sched_switch.so
LD /tmp/build/perf/plugins/plugin_cfg80211-in.o
LINK /tmp/build/perf/plugins/plugin_function.so
LINK /tmp/build/perf/plugins/plugin_xen.so
LINK /tmp/build/perf/plugins/plugin_cfg80211.so
LD /tmp/build/perf/plugins/plugin_scsi-in.o
LINK /tmp/build/perf/plugins/plugin_scsi.so
LD /tmp/build/perf/pmu-events/pmu-events-in.o
GEN /tmp/build/perf/plugins/libtraceevent-dynamic-list
CC /tmp/build/perf/builtin-bench.o
CC /tmp/build/perf/builtin-annotate.o
CC /tmp/build/perf/builtin-config.o
CC /tmp/build/perf/builtin-diff.o
CC /tmp/build/perf/builtin-evlist.o
CC /tmp/build/perf/builtin-ftrace.o
make[3]: Nothing to be done for '/tmp/build/perf/plugins/libtraceevent-dynamic-list'.
CC /tmp/build/perf/builtin-help.o
LD /tmp/build/perf/libsubcmd-in.o
AR /tmp/build/perf/libsubcmd.a
CC /tmp/build/perf/builtin-sched.o
CC /tmp/build/perf/builtin-buildid-list.o
CC /tmp/build/perf/builtin-buildid-cache.o
CC /tmp/build/perf/builtin-kallsyms.o
CC /tmp/build/perf/builtin-list.o
CC /tmp/build/perf/builtin-record.o
CC /tmp/build/perf/builtin-report.o
CC /tmp/build/perf/builtin-stat.o
CC /tmp/build/perf/builtin-timechart.o
CC /tmp/build/perf/builtin-top.o
CC /tmp/build/perf/builtin-script.o
CC /tmp/build/perf/builtin-kmem.o
CC /tmp/build/perf/builtin-lock.o
CC /tmp/build/perf/builtin-kvm.o
CC /tmp/build/perf/builtin-inject.o
CC /tmp/build/perf/builtin-mem.o
CC /tmp/build/perf/builtin-data.o
CC /tmp/build/perf/builtin-version.o
CC /tmp/build/perf/builtin-c2c.o
CC /tmp/build/perf/builtin-trace.o
CC /tmp/build/perf/builtin-probe.o
MKDIR /tmp/build/perf/bench/
CC /tmp/build/perf/bench/sched-messaging.o
MKDIR /tmp/build/perf/tests/
CC /tmp/build/perf/tests/builtin-test.o
MKDIR /tmp/build/perf/util/
CC /tmp/build/perf/arch/common.o
CC /tmp/build/perf/util/annotate.o
MKDIR /tmp/build/perf/bench/
CC /tmp/build/perf/bench/sched-pipe.o
MKDIR /tmp/build/perf/arch/arm64/util/
CC /tmp/build/perf/arch/arm64/util/header.o
MKDIR /tmp/build/perf/arch/arm64/util/
CC /tmp/build/perf/arch/arm64/util/sym-handling.o
CC /tmp/build/perf/bench/mem-functions.o
MKDIR /tmp/build/perf/tests/
CC /tmp/build/perf/tests/parse-events.o
MKDIR /tmp/build/perf/arch/arm64/tests/
CC /tmp/build/perf/arch/arm64/tests/regs_load.o
MKDIR /tmp/build/perf/arch/arm64/tests/
CC /tmp/build/perf/arch/arm64/tests/dwarf-unwind.o
CC /tmp/build/perf/arch/arm64/util/dwarf-regs.o
CC /tmp/build/perf/arch/arm64/util/unwind-libunwind.o
CC /tmp/build/perf/arch/arm64/tests/arch-tests.o
MKDIR /tmp/build/perf/arch/arm64/util/../../arm/util/
CC /tmp/build/perf/arch/arm64/util/../../arm/util/pmu.o
LD /tmp/build/perf/arch/arm64/tests/perf-in.o
MKDIR /tmp/build/perf/arch/arm64/util/../../arm/util/
CC /tmp/build/perf/arch/arm64/util/../../arm/util/auxtrace.o
CC /tmp/build/perf/bench/futex-hash.o
CC /tmp/build/perf/arch/arm64/util/../../arm/util/cs-etm.o
CC /tmp/build/perf/arch/arm64/util/arm-spe.o
CC /tmp/build/perf/bench/futex-wake.o
CC /tmp/build/perf/bench/futex-wake-parallel.o
CC /tmp/build/perf/bench/futex-requeue.o
MKDIR /tmp/build/perf/ui/
CC /tmp/build/perf/ui/setup.o
LD /tmp/build/perf/arch/arm64/util/perf-in.o
LD /tmp/build/perf/arch/arm64/perf-in.o
LD /tmp/build/perf/arch/perf-in.o
MKDIR /tmp/build/perf/scripts/perl/Perf-Trace-Util/
CC /tmp/build/perf/scripts/perl/Perf-Trace-Util/Context.o
CC /tmp/build/perf/bench/futex-lock-pi.o
MKDIR /tmp/build/perf/ui/
CC /tmp/build/perf/ui/helpline.o
CC /tmp/build/perf/bench/epoll-wait.o
CC /tmp/build/perf/ui/progress.o
CC /tmp/build/perf/bench/epoll-ctl.o
CC /tmp/build/perf/ui/util.o
CC /tmp/build/perf/trace/beauty/clone.o
CC /tmp/build/perf/ui/hist.o
CC /tmp/build/perf/trace/beauty/fcntl.o
CC /tmp/build/perf/trace/beauty/flock.o
CC /tmp/build/perf/trace/beauty/fsmount.o
CC /tmp/build/perf/trace/beauty/fspick.o
CC /tmp/build/perf/bench/numa.o
CC /tmp/build/perf/trace/beauty/kcmp.o
CC /tmp/build/perf/trace/beauty/mount_flags.o
LD /tmp/build/perf/scripts/perl/Perf-Trace-Util/perf-in.o
LD /tmp/build/perf/scripts/perf-in.o
CC /tmp/build/perf/perf.o
CC /tmp/build/perf/trace/beauty/move_mount.o
CC /tmp/build/perf/trace/beauty/pkey_alloc.o
CC /tmp/build/perf/trace/beauty/arch_prctl.o
CC /tmp/build/perf/trace/beauty/prctl.o
CC /tmp/build/perf/trace/beauty/renameat.o
MKDIR /tmp/build/perf/util/
CC /tmp/build/perf/trace/beauty/sockaddr.o
CC /tmp/build/perf/util/block-range.o
CC /tmp/build/perf/trace/beauty/socket.o
CC /tmp/build/perf/trace/beauty/statx.o
CC /tmp/build/perf/trace/beauty/sync_file_range.o
CC /tmp/build/perf/util/build-id.o
CC /tmp/build/perf/util/cacheline.o
CC /tmp/build/perf/tests/dso-data.o
CC /tmp/build/perf/util/config.o
CC /tmp/build/perf/util/copyfile.o
LD /tmp/build/perf/trace/beauty/perf-in.o
CC /tmp/build/perf/util/ctype.o
CC /tmp/build/perf/util/db-export.o
CC /tmp/build/perf/util/env.o
CC /tmp/build/perf/tests/attr.o
CC /tmp/build/perf/util/event.o
CC /tmp/build/perf/util/evlist.o
LD /tmp/build/perf/bench/perf-in.o
CC /tmp/build/perf/util/evsel.o
CC /tmp/build/perf/util/evsel_fprintf.o
CC /tmp/build/perf/util/perf_event_attr_fprintf.o
CC /tmp/build/perf/tests/vmlinux-kallsyms.o
CC /tmp/build/perf/util/evswitch.o
CC /tmp/build/perf/tests/openat-syscall.o
CC /tmp/build/perf/util/find_bit.o
CC /tmp/build/perf/util/kallsyms.o
CC /tmp/build/perf/util/get_current_dir_name.o
CC /tmp/build/perf/util/levenshtein.o
CC /tmp/build/perf/tests/openat-syscall-all-cpus.o
CC /tmp/build/perf/util/llvm-utils.o
CC /tmp/build/perf/util/mmap.o
MKDIR /tmp/build/perf/ui/stdio/
CC /tmp/build/perf/ui/stdio/hist.o
CC /tmp/build/perf/util/memswap.o
BISON /tmp/build/perf/util/parse-events-bison.c
util/parse-events.y:1.1-12: warning: deprecated directive, use '%define api.pure' [-Wdeprecated]
1 | %pure-parser
| ^~~~~~~~~~~~
CC /tmp/build/perf/util/perf_regs.o
CC /tmp/build/perf/tests/openat-syscall-tp-fields.o
util/parse-events.y: warning: fix-its can be applied. Rerun with option '--update'. [-Wother]
CC /tmp/build/perf/util/path.o
CC /tmp/build/perf/util/print_binary.o
CC /tmp/build/perf/util/rlimit.o
CC /tmp/build/perf/util/argv_split.o
CC /tmp/build/perf/tests/mmap-basic.o
CC /tmp/build/perf/util/rbtree.o
CC /tmp/build/perf/util/libstring.o
CC /tmp/build/perf/util/bitmap.o
CC /tmp/build/perf/util/hweight.o
CC /tmp/build/perf/util/smt.o
CC /tmp/build/perf/tests/perf-record.o
CC /tmp/build/perf/util/strbuf.o
CC /tmp/build/perf/tests/evsel-roundtrip-name.o
CC /tmp/build/perf/util/string.o
CC /tmp/build/perf/util/strlist.o
CC /tmp/build/perf/ui/browser.o
CC /tmp/build/perf/util/strfilter.o
CC /tmp/build/perf/util/top.o
CC /tmp/build/perf/tests/evsel-tp-sched.o
CC /tmp/build/perf/tests/fdarray.o
CC /tmp/build/perf/util/usage.o
CC /tmp/build/perf/tests/pmu.o
CC /tmp/build/perf/tests/hists_common.o
CC /tmp/build/perf/util/dso.o
CC /tmp/build/perf/tests/hists_link.o
CC /tmp/build/perf/util/dsos.o
CC /tmp/build/perf/util/symbol.o
CC /tmp/build/perf/tests/hists_filter.o
CC /tmp/build/perf/tests/hists_output.o
MKDIR /tmp/build/perf/ui/browsers/
CC /tmp/build/perf/ui/browsers/annotate.o
CC /tmp/build/perf/util/symbol_fprintf.o
CC /tmp/build/perf/tests/hists_cumulate.o
CC /tmp/build/perf/tests/python-use.o
CC /tmp/build/perf/tests/bp_signal.o
CC /tmp/build/perf/util/color.o
CC /tmp/build/perf/util/color_config.o
CC /tmp/build/perf/tests/bp_signal_overflow.o
CC /tmp/build/perf/util/metricgroup.o
CC /tmp/build/perf/util/header.o
CC /tmp/build/perf/util/callchain.o
MKDIR /tmp/build/perf/ui/browsers/
CC /tmp/build/perf/ui/browsers/hists.o
CC /tmp/build/perf/tests/bp_account.o
CC /tmp/build/perf/ui/browsers/map.o
CC /tmp/build/perf/tests/wp.o
CC /tmp/build/perf/ui/browsers/scripts.o
CC /tmp/build/perf/tests/task-exit.o
CC /tmp/build/perf/util/values.o
CC /tmp/build/perf/tests/sw-clock.o
CC /tmp/build/perf/tests/mmap-thread-lookup.o
CC /tmp/build/perf/util/debug.o
CC /tmp/build/perf/ui/browsers/header.o
CC /tmp/build/perf/tests/thread-mg-share.o
CC /tmp/build/perf/util/machine.o
CC /tmp/build/perf/ui/browsers/res_sample.o
CC /tmp/build/perf/tests/switch-tracking.o
CC /tmp/build/perf/tests/keep-tracking.o
CC /tmp/build/perf/util/map.o
CC /tmp/build/perf/util/pstack.o
CC /tmp/build/perf/util/session.o
CC /tmp/build/perf/tests/code-reading.o
CC /tmp/build/perf/util/sample-raw.o
CC /tmp/build/perf/tests/sample-parsing.o
CC /tmp/build/perf/util/s390-sample-raw.o
CC /tmp/build/perf/util/syscalltbl.o
CC /tmp/build/perf/tests/parse-no-sample-id-all.o
CC /tmp/build/perf/util/ordered-events.o
CC /tmp/build/perf/tests/kmod-path.o
CC /tmp/build/perf/tests/thread-map.o
CC /tmp/build/perf/util/namespaces.o
CC /tmp/build/perf/util/comm.o
CC /tmp/build/perf/tests/llvm.o
CC /tmp/build/perf/util/thread.o
CC /tmp/build/perf/util/thread_map.o
CC /tmp/build/perf/util/trace-event-parse.o
CC /tmp/build/perf/tests/bpf.o
CC /tmp/build/perf/util/parse-events-bison.o
BISON /tmp/build/perf/util/pmu-bison.c
CC /tmp/build/perf/util/trace-event-read.o
CC /tmp/build/perf/tests/topology.o
CC /tmp/build/perf/util/trace-event-info.o
CC /tmp/build/perf/util/trace-event-scripting.o
CC /tmp/build/perf/util/trace-event.o
CC /tmp/build/perf/util/svghelper.o
CC /tmp/build/perf/tests/mem.o
CC /tmp/build/perf/util/sort.o
CC /tmp/build/perf/util/hist.o
CC /tmp/build/perf/tests/cpumap.o
CC /tmp/build/perf/util/util.o
CC /tmp/build/perf/util/cpumap.o
CC /tmp/build/perf/tests/stat.o
CC /tmp/build/perf/util/cputopo.o
CC /tmp/build/perf/tests/event_update.o
CC /tmp/build/perf/util/cgroup.o
CC /tmp/build/perf/util/target.o
CC /tmp/build/perf/util/rblist.o
CC /tmp/build/perf/tests/event-times.o
CC /tmp/build/perf/util/intlist.o
CC /tmp/build/perf/util/vdso.o
CC /tmp/build/perf/util/counts.o
CC /tmp/build/perf/util/stat.o
CC /tmp/build/perf/util/stat-shadow.o
CC /tmp/build/perf/util/stat-display.o
CC /tmp/build/perf/tests/expr.o
CC /tmp/build/perf/util/record.o
LD /tmp/build/perf/ui/browsers/perf-in.o
MKDIR /tmp/build/perf/ui/tui/
CC /tmp/build/perf/ui/tui/setup.o
CC /tmp/build/perf/tests/backward-ring-buffer.o
MKDIR /tmp/build/perf/ui/tui/
CC /tmp/build/perf/ui/tui/util.o
CC /tmp/build/perf/ui/tui/helpline.o
CC /tmp/build/perf/tests/sdt.o
CC /tmp/build/perf/util/srcline.o
CC /tmp/build/perf/ui/tui/progress.o
CC /tmp/build/perf/util/srccode.o
CC /tmp/build/perf/tests/is_printable_array.o
LD /tmp/build/perf/ui/tui/perf-in.o
LD /tmp/build/perf/ui/perf-in.o
CC /tmp/build/perf/tests/bitmap.o
CC /tmp/build/perf/tests/perf-hooks.o
CC /tmp/build/perf/tests/clang.o
CC /tmp/build/perf/util/synthetic-events.o
CC /tmp/build/perf/tests/unit_number__scnprintf.o
CC /tmp/build/perf/tests/mem2node.o
CC /tmp/build/perf/util/data.o
CC /tmp/build/perf/tests/map_groups.o
CC /tmp/build/perf/util/tsc.o
CC /tmp/build/perf/tests/time-utils-test.o
CC /tmp/build/perf/util/cloexec.o
CC /tmp/build/perf/tests/dwarf-unwind.o
CC /tmp/build/perf/util/call-path.o
CC /tmp/build/perf/util/rwsem.o
CC /tmp/build/perf/util/thread-stack.o
CC /tmp/build/perf/util/auxtrace.o
MKDIR /tmp/build/perf/util/intel-pt-decoder/
CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.o
MKDIR /tmp/build/perf/util/scripting-engines/
CC /tmp/build/perf/util/scripting-engines/trace-event-perl.o
CC /tmp/build/perf/util/intel-pt.o
CC /tmp/build/perf/tests/llvm-src-base.o
CC /tmp/build/perf/tests/llvm-src-kbuild.o
CC /tmp/build/perf/tests/llvm-src-prologue.o
CC /tmp/build/perf/tests/llvm-src-relocation.o
CC /tmp/build/perf/util/intel-bts.o
LD /tmp/build/perf/tests/perf-in.o
CC /tmp/build/perf/util/arm-spe.o
MKDIR /tmp/build/perf/util/intel-pt-decoder/
GEN /tmp/build/perf/util/intel-pt-decoder/inat-tables.c
CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-log.o
CC /tmp/build/perf/util/arm-spe-pkt-decoder.o
CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-decoder.o
CC /tmp/build/perf/util/s390-cpumsf.o
CC /tmp/build/perf/util/parse-branch-options.o
CC /tmp/build/perf/util/dump-insn.o
CC /tmp/build/perf/util/parse-regs-options.o
CC /tmp/build/perf/util/term.o
CC /tmp/build/perf/util/help-unknown-cmd.o
CC /tmp/build/perf/util/mem-events.o
CC /tmp/build/perf/util/vsprintf.o
CC /tmp/build/perf/util/units.o
CC /tmp/build/perf/util/time-utils.o
BISON /tmp/build/perf/util/expr-bison.c
util/expr.y:15.1-12: warning: deprecated directive, use '%define api.pure' [-Wdeprecated]
15 | %pure-parser
| ^~~~~~~~~~~~
util/expr.y: warning: fix-its can be applied. Rerun with option '--update'. [-Wother LD /tmp/build/perf/util/scripting-engines/perf-in.o
]
CC /tmp/build/perf/util/branch.o
CC /tmp/build/perf/util/mem2node.o
CC /tmp/build/perf/util/bpf-loader.o
CC /tmp/build/perf/util/bpf_map.o
CC /tmp/build/perf/util/bpf-prologue.o
CC /tmp/build/perf/util/symbol-elf.o
CC /tmp/build/perf/util/probe-file.o
CC /tmp/build/perf/util/probe-event.o
CC /tmp/build/perf/util/probe-finder.o
CC /tmp/build/perf/util/dwarf-aux.o
CC /tmp/build/perf/util/dwarf-regs.o
CC /tmp/build/perf/util/unwind-libunwind-local.o
CC /tmp/build/perf/util/intel-pt-decoder/intel-pt-insn-decoder.o
CC /tmp/build/perf/util/unwind-libunwind.o
MKDIR /tmp/build/perf/util/libunwind/
CC /tmp/build/perf/util/libunwind/arm64.o
CC /tmp/build/perf/util/zlib.o
CC /tmp/build/perf/util/lzma.o
CC /tmp/build/perf/util/demangle-java.o
CC /tmp/build/perf/util/demangle-rust.o
CC /tmp/build/perf/util/jitdump.o
CC /tmp/build/perf/util/genelf.o
CC /tmp/build/perf/util/genelf_debug.o
CC /tmp/build/perf/util/perf-hooks.o
CC /tmp/build/perf/util/bpf-event.o
FLEX /tmp/build/perf/util/parse-events-flex.c
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
FLEX /tmp/build/perf/util/pmu-flex.c
CC /tmp/build/perf/util/pmu-bison.o
CC /tmp/build/perf/util/expr-bison.o
CC /tmp/build/perf/util/parse-events.o
CC /tmp/build/perf/util/parse-events-flex.o
CC /tmp/build/perf/util/pmu.o
CC /tmp/build/perf/util/pmu-flex.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `__parse_regs':
/git/linux/tools/perf/util/parse-regs-options.c:39: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:47: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:60: undefined reference to `sample_reg_masks'
/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: /git/linux/tools/perf/util/parse-regs-options.c:50: undefined reference to `sample_reg_masks'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile.perf:609: /tmp/build/perf/perf] Error 1
make[1]: *** [Makefile.perf:221: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[root@...co ~]#
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