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tracing: Add a helper function for event print functions

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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>
This commit is contained in:
Li Zefan 2013-02-21 10:32:38 +08:00 • committed by Steven Rostedt
parent 15693458c4
commit f71130de5c
3 changed files with 38 additions and 19 deletions
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26
kernel/trace/trace_output.c
View file

@ -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)
{