From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: Re: cross compiling perf Date: Fri, 17 Jun 2016 08:00:56 -0300 Message-ID: <20160617110056.GJ13337@kernel.org> References: <16135005.c00Xa53Rc9@milian-kdab2> <20160616161111.GA13337@kernel.org> <29350352.ftQorT9lcR@agathebauer> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail.kernel.org ([198.145.29.136]:43740 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752988AbcFQLBD (ORCPT ); Fri, 17 Jun 2016 07:01:03 -0400 Content-Disposition: inline In-Reply-To: <29350352.ftQorT9lcR@agathebauer> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: Milian Wolff , jiri@infradead.org, Wang Nan , He Kuang Cc: linux-perf-users@vger.kernel.org Adding some folks to the CC list, that either worked on the make infrastructure or that I know works with cross compiling environments, maybe they can help. More below. Em Fri, Jun 17, 2016 at 11:49:28AM +0200, Milian Wolff escreveu: > On Donnerstag, 16. Juni 2016 13:11:11 CEST Arnaldo Carvalho de Melo wrote: > > Em Wed, Jun 15, 2016 at 04:24:52PM +0200, Milian Wolff escreveu: > > > I'm trying to compile a more modern version of the user-space perf tools > > > for an arm64 embedded target. So far, no cigar. > > > > > > Neither tools/build/Documentation nor tools/perf/Documentation/Build.txt > > > explain how this should be done. Right now, I'm trying the following from > > > an SDK with an environment that already sets up CC, CFLAGS etc. pp. > > > > > > [SDK] ~/milian/linux/tools/perf$ make ARCH=arm64 CROSS_COMPILE=/home/sdk/ > > > sysroots/x86_64-oesdk-linux/usr/bin/aarch64-gnu-linux/aarch64-gnu-linux- > > > CFLAGS="--sysroot=/home/sdk/sysroots/aarch64-gnu-linux > > > -I/home/milian/target- prefix/include -L/home/milian/target-prefix/lib > > > $CFLAGS" > > > > > > BUILD: Doing 'make -j8' parallel build > > > > > > Auto-detecting system features: > > > ... dwarf: [ OFF ] > > > ... dwarf_getlocations: [ OFF ] > > > ... glibc: [ OFF ] > > > ... gtk2: [ OFF ] > > > ... libaudit: [ OFF ] > > > ... libbfd: [ OFF ] > > > ... libelf: [ OFF ] > > > ... libnuma: [ OFF ] > > > ... numa_num_possible_cpus: [ OFF ] > > > ... libperl: [ OFF ] > > > ... libpython: [ OFF ] > > > ... libslang: [ OFF ] > > > ... libcrypto: [ OFF ] > > > ... libunwind: [ OFF ] > > > ... libdw-dwarf-unwind: [ OFF ] > > > ... zlib: [ OFF ] > > > ... lzma: [ OFF ] > > > ... get_cpuid: [ OFF ] > > > ... bpf: [ OFF ] > > > > > > config/Makefile:272: *** No gnu/libc-version.h found, please install > > > glibc- > > > dev[el]. Stop > > > > > > How can I figure out where perf's buildsystem is looking for the > > > dependencies? How can I configure it to look into both, my sysroot as > > > well as a secondary path that contains some additional software I > > > compiled manually? > > > > So, I have these cross build images here: > > > > [root@jouet ~]# docker images | grep -- -x- > > perf-build-minimal-debian-experimental-x-mips64 latest 53b5bb082ace 11 > > weeks ago 595.3 MB perf-build-minimal-debian-experimental-x-mips64el > > latest 427fa4c1ad0a 11 weeks ago 595.4 MB > > perf-build-minimal-debian-experimental-x-mipsel latest 1247b61110bf 11 > > weeks ago 589.4 MB perf-build-minimal-ubuntu-x-arm > > latest cb739975a1f0 11 weeks ago 380.5 MB > > perf-build-minimal-ubuntu-x-arm64 latest 83fa1b24c6b6 11 > > weeks ago 357.2 MB perf-build-minimal-ubuntu-x-ppc64 > > latest b759a1866191 11 weeks ago 384.3 MB > > perf-build-minimal-ubuntu-x-ppc64el latest a3f1e718196a 11 > > weeks ago 372.3 MB [root@jouet ~]# > > > > But those are minimal builds, without that many devel packages, have > > to go back looking for multiarch libs in debian, anyway, it works > > a bit better than what you have experienced: > > > > [root@jouet ubuntu-x-arm64]# cat Dockerfile > > FROM docker.io/ubuntu > > MAINTAINER Arnaldo Carvalho de Melo > > #ENV DEBIAN_FRONTEND noninteractive > > RUN apt-get update -y > > RUN apt-get upgrade -y > > RUN apt-get install -y make gcc-aarch64-linux-gnu flex bison > > # buildable! > > # ubuntu doesn't have the other devel packages for arm64, so build just the > > basic tool RUN mkdir -p /tmp/build/perf > > ENTRYPOINT make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -C > > /git/linux/tools/perf O=/tmp/build/perf [root@jouet ubuntu-x-arm64]# > > [root@jouet ubuntu-x-arm64]# docker run -v /home/acme/git:/git:Z --rm=true > > -t -i perf-build-minimal-ubuntu-x-arm64 make: Entering directory > > `/git/linux/tools/perf' > > BUILD: Doing 'make -j4' parallel build > > sh: 1: command: Illegal option -c > > > > Auto-detecting system features: > > ... dwarf: [ OFF ] > > ... dwarf_getlocations: [ OFF ] > > ... glibc: [ on ] > > ... gtk2: [ OFF ] > > ... libaudit: [ OFF ] > > ... libbfd: [ OFF ] > > ... libelf: [ OFF ] > > ... libnuma: [ OFF ] > > ... numa_num_possible_cpus: [ OFF ] > > ... libperl: [ OFF ] > > ... libpython: [ OFF ] > > ... libslang: [ OFF ] > > ... libcrypto: [ OFF ] > > ... libunwind: [ OFF ] > > ... libdw-dwarf-unwind: [ OFF ] > > ... zlib: [ OFF ] > > ... lzma: [ OFF ] > > ... get_cpuid: [ OFF ] > > ... bpf: [ on ] > > > > config/Makefile:260: No libelf found, disables 'probe' tool and BPF support > > in 'perf record', please install elfutils-libelf-devel/libelf-dev > > config/Makefile:413: Disabling post unwind, no support found. > > config/Makefile:459: No libaudit.h found, disables 'trace' tool, please > > install audit-libs-devel or libaudit-dev config/Makefile:470: No > > libcrypto.h found, disables jitted code injection, please install > > libssl-devel or libssl-dev config/Makefile:485: slang not found, disables > > TUI support. Please install slang-devel or libslang-dev > > config/Makefile:499: GTK2 not found, disables GTK2 support. Please install > > gtk2-devel or libgtk2.0-dev config/Makefile:527: Missing perl devel files. > > Disabling perl scripting support, please install > > perl-ExtUtils-Embed/libperl-dev config/Makefile:553: No python interpreter > > was found: disables Python support - please install python-devel/python-dev > > config/Makefile:660: No liblzma found, disables xz kernel module > > decompression, please install xz-devel/liblzma-dev config/Makefile:673: No > > numa.h found, disables 'perf bench numa mem' benchmark, please install > > numactl-devel/libnuma-devel/libnuma-dev config/Makefile:730: Your gcc lacks > > the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please > > > > Thanks Arnaldo. Could you document how to specify the sysroot path and > secondary include and library paths? > > Also, how can I get more input to debug what is going wrong? So far I tried to > strace make and edit the makefile to add debug output, but with very limited > success. I'm used to CMake, which has both verbose error messages and keeps a > log file around with even more information on what went wrong. Furthermore, > for these kinds of compile checks, I can easily manually reproduce what CMake > did to figure out what is going wrong. With perf's make files, none of this > seems to be easily done :( Yeah, we're really bad at documenting things, lemme try finding what can help here: tools/build/Documentation/Build.txt tools/perf/Documentation/Build.txt And in your output dir (O= or in place, in tools/perf/) [acme@jouet linux]$ ls -la /tmp/build/perf/feature/*.output | tail -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-libunwind.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-libunwind-x86_64.make.output -rw-rw-r--. 1 acme acme 107 Jun 16 18:41 /tmp/build/perf/feature/test-libunwind-x86.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-lzma.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-numa_num_possible_cpus.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-pthread-attr-setaffinity-np.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-stackprotector-all.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-sync-compare-and-swap.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-timerfd.make.output -rw-rw-r--. 1 acme acme 0 Jun 16 18:36 /tmp/build/perf/feature/test-zlib.make.output [acme@jouet linux]$ So, a zero sized file means that feature was detected without a problem, lets see one that has content: [acme@jouet linux]$ cat /tmp/build/perf/feature/test-libunwind-x86.make.output test-libunwind-x86.c:1:27: fatal error: libunwind-x86.h: No such file or directory compilation terminated. [acme@jouet linux]$