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| author | Wang Nan <wangnan0@huawei.com> | 2015-08-26 12:57:46 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-26 15:43:01 +0200 |
| commit | a2fb3382edbea83c6f2bf6ac15e3673b2e254aad (patch) | |
| tree | d5e86120b0341a079e4a41977ca3d5c7d3c81061 /tools/perf/Documentation/perf-script.txt | |
| parent | perf probe: Support probing at absolute address (diff) | |
| download | linux-a2fb3382edbea83c6f2bf6ac15e3673b2e254aad.tar.xz linux-a2fb3382edbea83c6f2bf6ac15e3673b2e254aad.zip | |
tracing/uprobes: Do not print '0x (null)' when offset is 0
When manually added uprobe point with zero address, 'uprobe_events'
output '(null)' instead of 0x00000000:
# echo p:probe_libc/abs_0 /path/to/lib.bin:0x0 arg1=%ax > \
/sys/kernel/debug/tracing/uprobe_events
# cat /sys/kernel/debug/tracing/uprobe_events
p:probe_libc/abs_0 /path/to/lib.bin:0x (null) arg1=%ax
This patch fixes this behavior:
# cat /sys/kernel/debug/tracing/uprobe_events
p:probe_libc/abs_0 /path/to/lib.bin:0x0000000000000000
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1440586666-235233-8-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-script.txt')
0 files changed, 0 insertions, 0 deletions