linux-kernel - Re: [PATCH v2 3/4] perf version: Print the compiled-in status of libraries

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Message-ID: <20180328131053.GL3102@krava>
Date:   Wed, 28 Mar 2018 15:10:53 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Jin Yao <yao.jin@...ux.intel.com>
Cc:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com,
        Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com
Subject: Re: [PATCH v2 3/4] perf version: Print the compiled-in status of
 libraries

On Wed, Mar 28, 2018 at 10:57:07PM +0800, Jin Yao wrote:

SNIP

> +
> +static void library_status(void)
> +{
> +	STATUS(HAVE_DWARF_SUPPORT, dwarf);
> +	STATUS(HAVE_DWARF_GETLOCATIONS, dwarf_getlocations);
> +	STATUS(HAVE_GLIBC_SUPPORT, glibc);
> +	STATUS(HAVE_GTK2_SUPPORT, gtk2);
> +	STATUS(HAVE_LIBAUDIT_SUPPORT, libaudit);
> +	STATUS(HAVE_LIBBFD_SUPPORT, libbfd);
> +	STATUS(HAVE_LIBELF_SUPPORT, libelf);
> +	STATUS(HAVE_LIBNUMA_SUPPORT, libnuma);
> +	STATUS(HAVE_LIBNUMA_SUPPORT, numa_num_possible_cpus);
> +	STATUS(HAVE_LIBPERL_SUPPORT, libperl);
> +	STATUS(HAVE_LIBPYTHON_SUPPORT, libpython);
> +	STATUS(HAVE_SLANG_SUPPORT, libslang);
> +	STATUS(HAVE_LIBCRYPTO_SUPPORT, libcrypto);
> +	STATUS(HAVE_LIBUNWIND_SUPPORT, libunwind);
> +	STATUS(HAVE_DWARF_SUPPORT, libdw-dwarf-unwind);
> +	STATUS(HAVE_ZLIB_SUPPORT, zlib);
> +	STATUS(HAVE_LZMA_SUPPORT, lzma);
> +	STATUS(HAVE_AUXTRACE_SUPPORT, get_cpuid);
> +	STATUS(HAVE_LIBBPF_SUPPORT, bpf);
> +
> +	on_off_print("on");
> +	printf(": library is compiled-in\n");
> +
> +	on_off_print("OFF");
> +	printf(": library is disabled in make configuration\n");
> +	printf("         OR library is not installed in build environment\n");

[jolsa@...va perf]$ ./perf -vv
perf version 4.16.rc6.gcc183d
                 dwarf: [ on  ]
    dwarf_getlocations: [ on  ]
                 glibc: [ on  ]
                  gtk2: [ on  ]
              libaudit: [ OFF ]
                libbfd: [ on  ]
                libelf: [ on  ]
               libnuma: [ on  ]
numa_num_possible_cpus: [ on  ]
               libperl: [ on  ]
             libpython: [ on  ]
              libslang: [ on  ]
             libcrypto: [ on  ]
             libunwind: [ on  ]
    libdw-dwarf-unwind: [ on  ]
                  zlib: [ on  ]
                  lzma: [ on  ]
             get_cpuid: [ on  ]
                   bpf: [ on  ]
[ on  ]: library is compiled-in
[ OFF ]: library is disabled in make configuration
         OR library is not installed in build environment

did anyone asked for this ^^^ help messages? I don't think they are necessary

jirka