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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-11 22:08:55 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-11 22:18:25 -0300 |
| commit | 00768a2bd3245eace0690fcf2c02776a256b66d7 (patch) | |
| tree | a4d6073fbe182dfd13a7e31dc1c137577de1a088 /tools/perf/builtin-trace.c | |
| parent | fd4be13067ef65bf33b965a18c717889305d5fea (diff) | |
| download | lwn-00768a2bd3245eace0690fcf2c02776a256b66d7.tar.gz lwn-00768a2bd3245eace0690fcf2c02776a256b66d7.zip | |
perf trace: Print unresolved symbol names as addresses
Instead of having "[unknown]" as the name used for unresolved symbols,
use the address in the callchain, in hexadecimal form:
28.801 ( 0.007 ms): qemu-system-x8/10065 ppoll(ufds: 0x55c98b39e400, nfds: 72, tsp: 0x7fffe4e4fe60, sigsetsize: 8) = 0 Timeout
ppoll+0x91 (/usr/lib64/libc-2.22.so)
[0x337309] (/usr/bin/qemu-system-x86_64)
[0x336ab4] (/usr/bin/qemu-system-x86_64)
main+0x1724 (/usr/bin/qemu-system-x86_64)
__libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
[0xc59a9] (/usr/bin/qemu-system-x86_64)
35.265 (14.805 ms): gnome-shell/2287 ... [continued]: poll()) = 1
[0xf6fdd] (/usr/lib64/libc-2.22.so)
g_main_context_iterate.isra.29+0x17c (/usr/lib64/libglib-2.0.so.0.4600.2)
g_main_loop_run+0xc2 (/usr/lib64/libglib-2.0.so.0.4600.2)
meta_run+0x2c (/usr/lib64/libmutter.so.0.0.0)
main+0x3f7 (/usr/bin/gnome-shell)
__libc_start_main+0xf0 (/usr/lib64/libc-2.22.so)
[0x2909] (/usr/bin/gnome-shell)
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/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 60ab7ce3bc90..2ec53edcf649 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2196,8 +2196,9 @@ signed_print: if (sample->callchain) { struct addr_location al; /* TODO: user-configurable print_opts */ - const unsigned int print_opts = PRINT_IP_OPT_SYM - | PRINT_IP_OPT_DSO; + const unsigned int print_opts = PRINT_IP_OPT_SYM | + PRINT_IP_OPT_DSO | + PRINT_IP_OPT_UNKNOWN_AS_ADDR; if (machine__resolve(trace->host, &al, sample) < 0) { pr_err("problem processing %d event, skipping it.\n", |