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SubjectRe: [PATCH v4 0/6] Support perf -vv
On Fri, Mar 30, 2018 at 05:27:10PM +0800, Jin Yao wrote:
> We keep having bug reports that when users build perf on their own,
> but they don't install some needed libraries such as libelf,
> libbfd/libibery.
>
> The perf can build, but it is missing important functionality. And
> users may complain that perf has issue or bug.
>
> This patch-set support to print the status of compiled-in libraries.
>
> Once users think perf missing some functionality, it should be very
> easy for them to check the libraries status.
>
> For example:
>
> $ ./perf version --build-options
> or
> ./perf --version --build-options
> or
> ./perf -v --build-options
> or
> ./perf -vv
>
> perf version 4.13.rc5.g6727c5
> dwarf: [ on ] # HAVE_DWARF_SUPPORT
> dwarf_getlocations: [ on ] # HAVE_DWARF_GETLOCATIONS_SUPPORT
> glibc: [ on ] # HAVE_GLIBC_SUPPORT
> gtk2: [ on ] # HAVE_GTK2_SUPPORT
> libaudit: [ OFF ] # HAVE_LIBAUDIT_SUPPORT
> libbfd: [ on ] # HAVE_LIBBFD_SUPPORT
> libelf: [ on ] # HAVE_LIBELF_SUPPORT
> libnuma: [ on ] # HAVE_LIBNUMA_SUPPORT
> numa_num_possible_cpus: [ on ] # HAVE_LIBNUMA_SUPPORT
> libperl: [ on ] # HAVE_LIBPERL_SUPPORT
> libpython: [ on ] # HAVE_LIBPYTHON_SUPPORT
> libslang: [ on ] # HAVE_SLANG_SUPPORT
> libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT
> libunwind: [ on ] # HAVE_LIBUNWIND_SUPPORT
> libdw-dwarf-unwind: [ on ] # HAVE_DWARF_SUPPORT
> zlib: [ on ] # HAVE_ZLIB_SUPPORT
> lzma: [ on ] # HAVE_LZMA_SUPPORT
> get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT
> bpf: [ on ] # HAVE_LIBBPF_SUPPORT
>
> v4:
> ---
> 1. Also print the macro name. That would make it easier
> to grep around in the source looking for where code
> related a particular features is located.
>
> 2. Update since HAVE_DWARF_GETLOCATIONS is renamed to
> HAVE_DWARF_GETLOCATIONS_SUPPORT

Acked-by: Jiri Olsa <jolsa@kernel.org>

thanks,
jirka

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