Messages in this thread Patch in this message | | | Date | Fri, 14 Dec 2018 12:27:09 -0800 | From | tip-bot for Arnaldo Carvalho de Melo <> | Subject | [tip:perf/core] perf top: Allow passing a kallsyms file |
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Commit-ID: 5f71b002bbc6d73b875f250db9a8093feac0d1cc Gitweb: https://git.kernel.org/tip/5f71b002bbc6d73b875f250db9a8093feac0d1cc Author: Arnaldo Carvalho de Melo <acme@redhat.com> AuthorDate: Tue, 27 Nov 2018 10:31:03 -0300 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Thu, 29 Nov 2018 20:42:49 -0300
perf top: Allow passing a kallsyms file
This basically replicates what was done for 'perf report' in:
b226a5a72901 ("perf report: Allow user to specify path to kallsyms file")
This should help with resolving eBPF symbols, that are in kallsyms but, of course, not in vmlinux.
Reported-by: Ivan Babrou <ibobrik@gmail.com> Tested-by: Ivan Babrou <ibobrik@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-x52mx1ybq8128rtg9hjrj5qk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/Documentation/perf-top.txt | 3 +++ tools/perf/builtin-top.c | 2 ++ 2 files changed, 5 insertions(+)
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index 808b664343c9..44d89fb9c788 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -70,6 +70,9 @@ Default is to monitor all CPUS. --ignore-vmlinux:: Ignore vmlinux files. +--kallsyms=<file>:: + kallsyms pathname + -m <pages>:: --mmap-pages=<pages>:: Number of mmap data pages (must be a power of two) or size diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index aa0c73e57924..1252d1759064 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -1289,6 +1289,8 @@ int cmd_top(int argc, const char **argv) "file", "vmlinux pathname"), OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, "don't load vmlinux even if found"), + OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, + "file", "kallsyms pathname"), OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, "hide kernel symbols"), OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
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