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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-12 04:03:56 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-12 04:18:24 +0300 |
| commit | fd4be13067ef65bf33b965a18c717889305d5fea (patch) | |
| tree | 79dcf602f2ee0de4d64d643deef39c5aea228881 /tools/perf/util/session.c | |
| parent | fde54b7860ffff1c93e6b9abb3fbc3b8b95f2695 (diff) | |
| download | linux-fd4be13067ef65bf33b965a18c717889305d5fea.tar.xz | |
perf evsel: Allow unresolved symbol names to be printed as addresses
The fprintf_sym() and fprintf_callchain() methods now allow users to
change the existing behaviour of showing "[unknown]" as the name of
unresolved symbols to instead show "[0x123456]", i.e. its address.
The current patch doesn't change tools to use this facility, the results
from 'perf trace' and 'perf script' cotinue like:
70.109 ( 0.001 ms): qemu-system-x8/10153 poll(ufds: 0x7f2d93ffe870, nfds: 1) = 0 Timeout
[unknown] (/usr/lib64/libc-2.22.so)
[unknown] (/usr/lib64/libspice-server.so.1.10.0)
[unknown] (/usr/lib64/libspice-server.so.1.10.0)
[unknown] (/usr/lib64/libspice-server.so.1.10.0)
start_thread+0xca (/usr/lib64/libpthread-2.22.so)
__clone+0x6d (/usr/lib64/libc-2.22.so)
The next patch will make 'perf trace' use the new formatting.
Suggested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-fja1ods5vqpg42mdz09xcz3r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/session.c')
| -rw-r--r-- | tools/perf/util/session.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index e384b651a3e8..0516d06a2741 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1966,6 +1966,7 @@ int perf_evsel__fprintf_callchain(struct perf_evsel *evsel, struct perf_sample * int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; int print_oneline = print_opts & PRINT_IP_OPT_ONELINE; int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; + int print_unknown_as_addr = print_opts & PRINT_IP_OPT_UNKNOWN_AS_ADDR; char s = print_oneline ? ' ' : '\t'; if (sample->callchain) { @@ -2003,12 +2004,16 @@ int perf_evsel__fprintf_callchain(struct perf_evsel *evsel, struct perf_sample * if (print_sym) { printed += fprintf(fp, " "); + node_al.addr = addr; + node_al.map = node->map; + if (print_symoffset) { - node_al.addr = addr; - node_al.map = node->map; - printed += symbol__fprintf_symname_offs(node->sym, &node_al, fp); - } else - printed += symbol__fprintf_symname(node->sym, fp); + printed += __symbol__fprintf_symname_offs(node->sym, &node_al, + print_unknown_as_addr, fp); + } else { + printed += __symbol__fprintf_symname(node->sym, &node_al, + print_unknown_as_addr, fp); + } } if (print_dso) { @@ -2043,6 +2048,7 @@ int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample int print_dso = print_opts & PRINT_IP_OPT_DSO; int print_symoffset = print_opts & PRINT_IP_OPT_SYMOFFSET; int print_srcline = print_opts & PRINT_IP_OPT_SRCLINE; + int print_unknown_as_addr = print_opts & PRINT_IP_OPT_UNKNOWN_AS_ADDR; if (symbol_conf.use_callchain && sample->callchain) { printed += perf_evsel__fprintf_callchain(evsel, sample, al, left_alignment, @@ -2055,10 +2061,13 @@ int perf_evsel__fprintf_sym(struct perf_evsel *evsel, struct perf_sample *sample if (print_sym) { printed += fprintf(fp, " "); - if (print_symoffset) - printed += symbol__fprintf_symname_offs(al->sym, al, fp); - else - printed += symbol__fprintf_symname(al->sym, fp); + if (print_symoffset) { + printed += __symbol__fprintf_symname_offs(al->sym, al, + print_unknown_as_addr, fp); + } else { + printed += __symbol__fprintf_symname(al->sym, al, + print_unknown_as_addr, fp); + } } if (print_dso) { |