perf-check - Man Page

perf check [<options>]
perf check {feature <feature_list>} [<options>]

With no subcommands given, perf check command just prints the command usage on the standard output​.

If the subcommand feature is used, then status of feature is printed on the standard output (unless -q is also passed), ie​. whether it is compiled-in/built-in or not​. Also, perf check feature returns with exit status 0 if the feature is built-in, otherwise returns with exit status 1​.

feature

Print whether feature(s) is compiled-in or not, and also returns with an exit status of 0, if passed feature(s) are compiled-in, else 1​.

It expects a feature list as an argument​. There can be a single feature
name/macro, or multiple features can also be passed as a comma-separated
list, in which case the exit status will be 0 only if all of the passed
features are compiled-in​.

The feature names/macros are case-insensitive​.

Example Usage:
        perf check feature libtraceevent
        perf check feature HAVE_LIBTRACEEVENT
        perf check feature libtraceevent,bpf

Supported feature names/macro:
        aio                     /  HAVE_AIO_SUPPORT
        bpf                     /  HAVE_LIBBPF_SUPPORT
        bpf_skeletons           /  HAVE_BPF_SKEL
        debuginfod              /  HAVE_DEBUGINFOD_SUPPORT
        dwarf                   /  HAVE_LIBDW_SUPPORT
        dwarf_getlocations      /  HAVE_LIBDW_SUPPORT
        dwarf-unwind            /  HAVE_DWARF_UNWIND_SUPPORT
        libbfd                  /  HAVE_LIBBFD_SUPPORT
        libbpf-strings          /  HAVE_LIBBPF_STRINGS_SUPPORT
        libcapstone             /  HAVE_LIBCAPSTONE_SUPPORT
        libdw-dwarf-unwind      /  HAVE_LIBDW_SUPPORT
        libelf                  /  HAVE_LIBELF_SUPPORT
        libLLVM                 /  HAVE_LIBLLVM_SUPPORT
        libnuma                 /  HAVE_LIBNUMA_SUPPORT
        libopencsd              /  HAVE_CSTRACE_SUPPORT
        libperl                 /  HAVE_LIBPERL_SUPPORT
        libpfm4                 /  HAVE_LIBPFM
        libpython               /  HAVE_LIBPYTHON_SUPPORT
        libslang                /  HAVE_SLANG_SUPPORT
        libtraceevent           /  HAVE_LIBTRACEEVENT
        libunwind               /  HAVE_LIBUNWIND_SUPPORT
        lzma                    /  HAVE_LZMA_SUPPORT
        numa_num_possible_cpus  /  HAVE_LIBNUMA_SUPPORT
        zlib                    /  HAVE_ZLIB_SUPPORT
        zstd                    /  HAVE_ZSTD_SUPPORT

-q,  --quiet

Do not print any messages or warnings

This can be used along with subcommands such as 'perf check feature'
to hide unnecessary output in test scripts, eg​.
'perf check feature --quiet libtraceevent'