From: Arnaldo Carvalho de Melo <[email protected]>
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 <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/builtin-trace.c | 5 +++--
1 file 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",
--
2.5.5
