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| author | walimis <walimisdev@gmail.com> | 2009-06-03 16:01:30 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2009-06-03 10:25:30 -0400 |
| commit | 048dc50c5e7eada19ebabbad70b7966d14283d41 (patch) | |
| tree | 2d81fa88cfb5ebd5ee2622b4eb7632b1f369a567 /kernel/trace/trace_output.c | |
| parent | f11b3f4e2932bfdcfc458ab8d1ece62724ceabfc (diff) | |
| download | linux-stable-048dc50c5e7eada19ebabbad70b7966d14283d41.tar.gz linux-stable-048dc50c5e7eada19ebabbad70b7966d14283d41.tar.bz2 linux-stable-048dc50c5e7eada19ebabbad70b7966d14283d41.zip | |
tracing/events: fix output format of user stack
According to "events/ftrace/user_stack/format", fix the output of
user stack.
before fix:
sh-1073 [000] 31.137561: <b7f274fe> <- <0804e33c> <- <080835c1>
after fix:
sh-1072 [000] 37.039329:
=> <b7f8a4fe>
=> <0804e33c>
=> <080835c1>
Signed-off-by: walimis <walimisdev@gmail.com>
LKML-Reference: <1244016090-7814-3-git-send-email-walimisdev@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 64596a571609..8dadbbbd2d5c 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -389,17 +389,20 @@ seq_print_userip_objs(const struct userstack_entry *entry, struct trace_seq *s, if (ip == ULONG_MAX || !ret) break; - if (i && ret) - ret = trace_seq_puts(s, " <- "); + if (ret) + ret = trace_seq_puts(s, " => "); if (!ip) { if (ret) ret = trace_seq_puts(s, "??"); + if (ret) + ret = trace_seq_puts(s, "\n"); continue; } if (!ret) break; if (ret) ret = seq_print_user_ip(s, mm, ip, sym_flags); + ret = trace_seq_puts(s, "\n"); } if (mm) @@ -1012,10 +1015,10 @@ static enum print_line_t trace_user_stack_print(struct trace_iterator *iter, trace_assign_type(field, iter->ent); - if (!seq_print_userip_objs(field, s, flags)) + if (!trace_seq_putc(s, '\n')) goto partial; - if (!trace_seq_putc(s, '\n')) + if (!seq_print_userip_objs(field, s, flags)) goto partial; return TRACE_TYPE_HANDLED; |