Hi, [...]
> > > > I just tried a cross-build for arm, and that blew up when trying to do > > > > something with arch/arm/util/libperf-in.o (log below). I bisected that > > > > to f169fbc4c59dd9d4 "perf build: Add arch x86 objects building". I'm > > > > looking into why now. > > > > > > I get a similar failure doing a native arm64 build. I think the problem is > > > because the arch/ files for arm and arm64 aren't always required (i.e. > > > there > > > are configurations where nothing is built under there) and, consequently, > > > libperf-in.o isn't actually needed and we try to link against something > > > that > > > doesn't exist. > > > > exactly ;-) I'll spin v3 shortly.. > > this fixes the issue for me > > jirka > > > --- > diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build > index d35b66014992..396b33b124d1 100644 > --- a/tools/build/Makefile.build > +++ b/tools/build/Makefile.build > @@ -52,7 +52,7 @@ quiet_cmd_cc_s_c = AS $@ > > # Link agregate command > quiet_cmd_ld_multi = LD $@ > - cmd_ld_multi = $(LD) -r -o $@ $^ > + cmd_ld_multi = $(LD) -r -o $@ $(wildcard $^) > > # Build rules > $(OUTPUT)%.o: %.c FORCE > Unfortunately that doesn't seem to be sufficient for me when cross-compiling. It looks like it supresses the warning from Make, but then LD explodes anyway because it wasn't provided any input files (log below). Thanks, Mark. [mark@leverpostej:~/src/linux/tools/perf]% uselinaro 14.09 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- BUILD: Doing 'make -j8' parallel build config/Makefile:341: No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev config/Makefile:417: Disabling post unwind, no support found. config/Makefile:458: No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev config/Makefile:473: slang not found, disables TUI support. Please install slang-devel or libslang-dev config/Makefile:487: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev config/Makefile:515: Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed config/Makefile:560: No Python.h (for Python 2.x) was found config/Makefile:560: Python support will not be built config/Makefile:653: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev Auto-detecting system features: ... dwarf: [ OFF ] ... glibc: [ on ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ OFF ] ... libnuma: [ OFF ] ... libperl: [ OFF ] ... libpython: [ OFF ] ... libslang: [ OFF ] ... libunwind: [ OFF ] ... libdw-dwarf-unwind: [ OFF ] ... zlib: [ OFF ] SUBDIR /home/mark/src/linux/tools/lib/api/ FLAGS: * new build flags or prefix GEN common-cmds.h MKDIR libapi_dirs SUBDIR /home/mark/src/linux/tools/lib/traceevent/ CC fs/debugfs.o CC arch/common.o CC fs/fs.o CC fd/array.o CC util/abspath.o FLAGS: * new build flags or cross compiler CC ui/setup.o CC ui/helpline.o CC ui/progress.o AR libapikfs.a CC util/alias.o CC util/annotate.o CC ui/util.o CC ui/hist.o CC ui/stdio/hist.o PERF_VERSION = 3.19.rc2.gb7973a CC builtin-bench.o LD arch/libperf-in.o arm-linux-gnueabihf-ld: no input files make[3]: *** [arch/libperf-in.o] Error 1 make[2]: *** [arch] Error 2 make[2]: *** Waiting for unfinished jobs.... CC builtin-annotate.o CC util/build-id.o CC FPIC event-parse.o CC FPIC event-plugin.o CC FPIC trace-seq.o CC builtin-diff.o CC FPIC parse-filter.o CC builtin-evlist.o CC util/config.o CC util/ctype.o CC FPIC parse-utils.o CC util/db-export.o CC FPIC kbuffer-parse.o CC builtin-help.o CC util/environment.o CC FPIC plugin_jbd2.o CC FPIC plugin_hrtimer.o CC util/event.o CC FPIC plugin_kmem.o CC FPIC plugin_kvm.o CC FPIC plugin_mac80211.o CC util/evlist.o CC FPIC plugin_sched_switch.o CC builtin-sched.o CC util/evsel.o CC util/exec_cmd.o CC FPIC plugin_function.o CC FPIC plugin_xen.o CC builtin-buildid-list.o CC FPIC plugin_scsi.o CC FPIC plugin_cfg80211.o CC builtin-buildid-cache.o LINK libtraceevent.a LINK plugin_jbd2.so GEN perf-archive CC util/find_next_bit.o LINK plugin_hrtimer.so LINK plugin_kmem.so LINK plugin_kvm.so CC util/help.o LINK plugin_mac80211.so CC util/kallsyms.o LINK plugin_sched_switch.so LINK plugin_function.so LINK plugin_xen.so LD ui/libperf-in.o CC builtin-list.o arm-linux-gnueabihf-ld: no input files make[3]: *** [ui/libperf-in.o] Error 1 make[2]: *** [ui] Error 2 CC builtin-record.o LINK plugin_scsi.so LINK plugin_cfg80211.so GEN perf-with-kcore CC builtin-report.o CC builtin-stat.o CC builtin-timechart.o CC util/levenshtein.o CC builtin-top.o CC builtin-script.o CC builtin-kmem.o CC builtin-lock.o CC util/parse-options.o CC builtin-kvm.o CC builtin-inject.o CC builtin-mem.o CC bench/sched-messaging.o CC tests/builtin-test.o CC perf.o BISON util/parse-events-bison.c CC util/path.o CC util/rbtree.o CC util/bitmap.o CC tests/parse-events.o CC bench/sched-pipe.o CC util/hweight.o CC util/run-command.o CC bench/mem-memcpy.o CC bench/futex-hash.o CC bench/futex-wake.o CC util/quote.o CC bench/futex-requeue.o CC tests/dso-data.o CC util/strbuf.o CC util/string.o CC util/strlist.o CC tests/attr.o CC tests/vmlinux-kallsyms.o LD bench/perf-in.o arm-linux-gnueabihf-ld: no input files make[3]: *** [bench/perf-in.o] Error 1 make[2]: *** [bench] Error 2 make[2]: *** Waiting for unfinished jobs.... CC tests/open-syscall.o CC util/strfilter.o CC util/top.o CC util/usage.o CC tests/open-syscall-all-cpus.o CC tests/open-syscall-tp-fields.o CC tests/mmap-basic.o CC tests/perf-record.o CC util/wrapper.o CC tests/rdpmc.o CC util/sigchain.o CC tests/evsel-roundtrip-name.o CC tests/evsel-tp-sched.o CC tests/fdarray.o CC util/dso.o CC tests/pmu.o CC tests/hists_common.o CC util/symbol.o CC tests/hists_link.o CC tests/hists_filter.o CC tests/hists_output.o CC tests/hists_cumulate.o CC tests/python-use.o CC tests/bp_signal.o CC util/color.o CC tests/bp_signal_overflow.o CC tests/task-exit.o CC util/pager.o CC util/header.o CC util/callchain.o CC tests/sw-clock.o CC tests/mmap-thread-lookup.o CC util/values.o CC tests/thread-mg-share.o CC tests/switch-tracking.o CC tests/keep-tracking.o CC tests/code-reading.o CC util/debug.o CC tests/sample-parsing.o CC util/machine.o CC tests/parse-no-sample-id-all.o CC util/map.o CC util/pstack.o CC util/session.o CC util/ordered-events.o LD tests/perf-in.o arm-linux-gnueabihf-ld: no input files make[3]: *** [tests/perf-in.o] Error 1 make[2]: *** [tests] Error 2 make[1]: *** [perf-in.o] Error 2 make[1]: *** Waiting for unfinished jobs.... CC util/comm.o CC util/thread.o CC util/thread_map.o CC util/trace-event-parse.o CC util/parse-events-bison.o BISON util/pmu-bison.c CC util/trace-event-read.o CC util/trace-event-info.o CC util/trace-event-scripting.o CC util/trace-event.o CC util/svghelper.o CC util/sort.o CC util/hist.o CC util/util.o CC util/xyarray.o CC util/cpumap.o CC util/cgroup.o CC util/target.o CC util/rblist.o CC util/intlist.o CC util/vdso.o CC util/stat.o CC util/record.o CC util/srcline.o CC util/data.o CC util/tsc.o CC util/cloexec.o CC util/thread-stack.o CC util/symbol-minimal.o CC util/perf_regs.o FLEX util/parse-events-flex.c FLEX util/pmu-flex.c CC util/pmu-bison.o CC util/parse-events.o CC util/parse-events-flex.o CC util/pmu.o CC util/pmu-flex.o LD util/libperf-in.o arm-linux-gnueabihf-ld: no input files make[3]: *** [util/libperf-in.o] Error 1 make[2]: *** [util] Error 2 make[1]: *** [libperf-in.o] Error 2 make: *** [all] Error 2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
