diff options
| -rw-r--r-- | tools/lib/traceevent/plugin_function.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/tools/lib/traceevent/plugin_function.c b/tools/lib/traceevent/plugin_function.c index 80ba4ff1fe84..a00ec190821a 100644 --- a/tools/lib/traceevent/plugin_function.c +++ b/tools/lib/traceevent/plugin_function.c @@ -33,6 +33,29 @@ static int cpus = -1; #define STK_BLK 10 +struct pevent_plugin_option plugin_options[] = +{ + { + .name = "parent", + .plugin_alias = "ftrace", + .description = + "Print parent of functions for function events", + }, + { + .name = "indent", + .plugin_alias = "ftrace", + .description = + "Try to show function call indents, based on parents", + .set = 1, + }, + { + .name = NULL, + } +}; + +static struct pevent_plugin_option *ftrace_parent = &plugin_options[0]; +static struct pevent_plugin_option *ftrace_indent = &plugin_options[1]; + static void add_child(struct func_stack *stack, const char *child, int pos) { int i; @@ -119,7 +142,8 @@ static int function_handler(struct trace_seq *s, struct pevent_record *record, parent = pevent_find_function(pevent, pfunction); - index = add_and_get_index(parent, func, record->cpu); + if (parent && ftrace_indent->set) + index = add_and_get_index(parent, func, record->cpu); trace_seq_printf(s, "%*s", index*3, ""); @@ -128,11 +152,13 @@ static int function_handler(struct trace_seq *s, struct pevent_record *record, else trace_seq_printf(s, "0x%llx", function); - trace_seq_printf(s, " <-- "); - if (parent) - trace_seq_printf(s, "%s", parent); - else - trace_seq_printf(s, "0x%llx", pfunction); + if (ftrace_parent->set) { + trace_seq_printf(s, " <-- "); + if (parent) + trace_seq_printf(s, "%s", parent); + else + trace_seq_printf(s, "0x%llx", pfunction); + } return 0; } @@ -141,6 +167,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) { pevent_register_event_handler(pevent, -1, "ftrace", "function", function_handler, NULL); + + traceevent_plugin_add_options("ftrace", plugin_options); + return 0; } @@ -157,6 +186,8 @@ void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) free(fstack[i].stack); } + traceevent_plugin_remove_options(plugin_options); + free(fstack); fstack = NULL; cpus = -1; |