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In Makefile.config for unwinding the name dwarf implies either libunwind or libdw. Make it clearer that HAVE_DWARF_SUPPORT is really just defined when libdw is present by renaming to HAVE_LIBDW_SUPPORT. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Leo Yan <leo.yan@arm.com> Cc: Anup Patel <anup@brainfault.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: David S. Miller <davem@davemloft.net> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Shenlin Liang <liangshenlin@eswincomputing.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Guo Ren <guoren@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Chen Pei <cp0613@linux.alibaba.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Aditya Gupta <adityag@linux.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao <maobibo@loongson.cn> Cc: John Garry <john.g.garry@oracle.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241017001354.56973-11-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
83 lines
3.3 KiB
Plaintext
83 lines
3.3 KiB
Plaintext
perf-check(1)
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===============
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NAME
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----
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perf-check - check if features are present in perf
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SYNOPSIS
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--------
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[verse]
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'perf check' [<options>]
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'perf check' {feature <feature_list>} [<options>]
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DESCRIPTION
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-----------
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With no subcommands given, 'perf check' command just prints the command
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usage on the standard output.
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If the subcommand 'feature' is used, then status of feature is printed
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on the standard output (unless '-q' is also passed), ie. whether it is
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compiled-in/built-in or not.
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Also, 'perf check feature' returns with exit status 0 if the feature
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is built-in, otherwise returns with exit status 1.
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SUBCOMMANDS
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-----------
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feature::
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Print whether feature(s) is compiled-in or not, and also returns with an
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exit status of 0, if passed feature(s) are compiled-in, else 1.
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It expects a feature list as an argument. There can be a single feature
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name/macro, or multiple features can also be passed as a comma-separated
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list, in which case the exit status will be 0 only if all of the passed
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features are compiled-in.
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The feature names/macros are case-insensitive.
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Example Usage:
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perf check feature libtraceevent
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perf check feature HAVE_LIBTRACEEVENT
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perf check feature libtraceevent,bpf
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Supported feature names/macro:
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aio / HAVE_AIO_SUPPORT
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bpf / HAVE_LIBBPF_SUPPORT
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bpf_skeletons / HAVE_BPF_SKEL
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debuginfod / HAVE_DEBUGINFOD_SUPPORT
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dwarf / HAVE_LIBDW_SUPPORT
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dwarf_getlocations / HAVE_LIBDW_SUPPORT
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dwarf-unwind / HAVE_DWARF_UNWIND_SUPPORT
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auxtrace / HAVE_AUXTRACE_SUPPORT
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libaudit / HAVE_LIBAUDIT_SUPPORT
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libbfd / HAVE_LIBBFD_SUPPORT
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libcapstone / HAVE_LIBCAPSTONE_SUPPORT
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libcrypto / HAVE_LIBCRYPTO_SUPPORT
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libdw-dwarf-unwind / HAVE_LIBDW_SUPPORT
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libelf / HAVE_LIBELF_SUPPORT
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libnuma / HAVE_LIBNUMA_SUPPORT
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libopencsd / HAVE_CSTRACE_SUPPORT
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libperl / HAVE_LIBPERL_SUPPORT
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libpfm4 / HAVE_LIBPFM
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libpython / HAVE_LIBPYTHON_SUPPORT
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libslang / HAVE_SLANG_SUPPORT
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libtraceevent / HAVE_LIBTRACEEVENT
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libunwind / HAVE_LIBUNWIND_SUPPORT
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lzma / HAVE_LZMA_SUPPORT
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numa_num_possible_cpus / HAVE_LIBNUMA_SUPPORT
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syscall_table / HAVE_SYSCALL_TABLE_SUPPORT
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zlib / HAVE_ZLIB_SUPPORT
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zstd / HAVE_ZSTD_SUPPORT
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OPTIONS
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-------
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-q::
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--quiet::
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Do not print any messages or warnings
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This can be used along with subcommands such as 'perf check feature'
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to hide unnecessary output in test scripts, eg.
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'perf check feature --quiet libtraceevent'
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