diff options
| author | Li Zefan <lizefan@huawei.com> | 2013-02-21 10:32:38 +0800 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-03-15 00:34:51 -0400 |
| commit | f71130de5c7fba92faf3901784714e37a234c08f (patch) | |
| tree | 3632ac6de403c726b2ea8bb890f573c9fd6c54bc /kernel/trace/trace_output.c | |
| parent | 15693458c4bc0693fd63a50d60f35b628fcf4e29 (diff) | |
tracing: Add a helper function for event print functions
Move duplicate code in event print functions to a helper function.
This shrinks the size of the kernel by ~13K.
text data bss dec hex filename
6596137 1743966 10138672 18478775 119f6b7 vmlinux.o.old
6583002 1743849 10138672 18465523 119c2f3 vmlinux.o.new
Link: http://lkml.kernel.org/r/51258746.2060304@huawei.com
Signed-off-by: Li Zefan <lizefan@huawei.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 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 194d79602dc..aa92ac322ba 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -397,6 +397,32 @@ ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len) } EXPORT_SYMBOL(ftrace_print_hex_seq); +int ftrace_raw_output_prep(struct trace_iterator *iter, + struct trace_event *trace_event) +{ + struct ftrace_event_call *event; + struct trace_seq *s = &iter->seq; + struct trace_seq *p = &iter->tmp_seq; + struct trace_entry *entry; + int ret; + + event = container_of(trace_event, struct ftrace_event_call, event); + entry = iter->ent; + + if (entry->type != event->event.type) { + WARN_ON_ONCE(1); + return TRACE_TYPE_UNHANDLED; + } + + trace_seq_init(p); + ret = trace_seq_printf(s, "%s: ", event->name); + if (!ret) + return TRACE_TYPE_PARTIAL_LINE; + + return 0; +} +EXPORT_SYMBOL(ftrace_raw_output_prep); + #ifdef CONFIG_KRETPROBES static inline const char *kretprobed(const char *name) { |