linux-kernel - Re: [PATCH] tools lib: Reinstate strlcpy() header guard with __UCLIBC_

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Date:   Fri, 19 Aug 2016 11:22:07 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Vineet Gupta <Vineet.Gupta1@...opsys.com>
Cc:     Arnaldo Carvalho de Melo <acme@...hat.com>,
        Wang Nan <wangnan0@...wei.com>,
        osh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org, Petri Gynther <pgynther@...gle.com>,
        Jiri Olsa <jolsa@...nel.org>, David Ahern <dsahern@...il.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-snps-arc@...ts.infradead.org
Subject: Re: [PATCH] tools lib: Reinstate strlcpy() header guard with
 __UCLIBC__

Em Thu, Aug 18, 2016 at 09:03:08AM -0700, Vineet Gupta escreveu:
> On 08/18/2016 07:07 AM, Arnaldo Carvalho de Melo wrote:
> > Are you aware of any readily available tarball or docker image that has
> > a uclibc based devel env that I could grab? I'd add it to my build setup
> > to make sure I (and my downstreamers) don't break uclibc environments in
> > the future.
> 
> A prebuilt toolchain would just suffice.
> 
> https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2016.03/arc_gnu_2016.03_prebuilt_uclibc_le_archs_linux_install.tar.gz

So, I did just that, from now on, before pushing things to Ingo, that
prebuilt toolchain will be used in a docker container, please take a
look at the Dockerfile and see if there is something missing from the
cross build make command line:

# -------------------- 8< -------------------------------
# docker.io/acmel/linux-perf-tools-build-fedora:24-x-ARC-uClibc
FROM docker.io/fedora:24
MAINTAINER Arnaldo Carvalho de Melo <acme@...nel.org>
ENV TOOLCHAIN=arc_gnu_2016.03_prebuilt_uclibc_le_archs_linux_install
RUN SOURCEFILE=${TOOLCHAIN}.tar.gz && \
    dnf -y install make flex bison tar gzip && \
    dnf -y clean all && \
    mkdir -m 777 -p /tmp/build/perf && \
    curl -OL https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2016.03/${SOURCEFILE} && \
    tar xf ${SOURCEFILE} && \
    rm -f ${SOURCEFILE} && \
    groupadd -r perfbuilder && \
    useradd -r -g perfbuilder perfbuilder
USER perfbuilder
ENTRYPOINT make -C /git/linux/tools/perf O=/tmp/build/perf ARCH=arc CROSS_COMPILE=/${TOOLCHAIN}/bin/arc-linux-
# -------------------- 8< -------------------------------

Do I have to pass some extra flags? Perhaps for sysroot?

With the above I get:

  # dm fedora:24-x-ARC-uClibc
  1: 29.108592825 fedora:24-x-ARC-uClibc: Ok
  # 

Which selected these features: 

  make: Entering directory '/git/linux/tools/perf'
    BUILD:   Doing 'make -j4' parallel build
  sh: line 0: command: -c: invalid option
  command: usage: command [-pVv] command [arg ...]

  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  ]

  Makefile.config:260: No libelf found, disables 'probe' tool and BPF support in 'perf record', please install libelf-dev, libelf-devel or elfutils-libelf-devel
  Makefile.config:360: No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev
  Makefile.config:433: Disabling post unwind, no support found.
  Makefile.config:479: No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev
  Makefile.config:490: No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev
  Makefile.config:505: slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev
  Makefile.config:519: GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev
  Makefile.config:547: Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev
  Makefile.config:573: No python interpreter was found: disables Python support - please install python-devel/python-dev
  Makefile.config:680: No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev
  Makefile.config:693: No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev
  Makefile.config:750: Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc

- Arnaldo