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authorLi Zefan <lizefan@huawei.com>2013-02-21 02:32:38 (GMT)
committerSteven Rostedt <rostedt@goodmis.org>2013-03-15 04:34:51 (GMT)
commitf71130de5c7fba92faf3901784714e37a234c08f (patch)
tree3632ac6de403c726b2ea8bb890f573c9fd6c54bc /kernel/trace
parent15693458c4bc0693fd63a50d60f35b628fcf4e29 (diff)
downloadlinux-fsl-qoriq-f71130de5c7fba92faf3901784714e37a234c08f.tar.xz
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')
-rw-r--r--kernel/trace/trace_output.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 194d796..aa92ac3 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)
{