tracing: Rename update the enum_map file

The enum_map file is used to display a list of symbol
to name conversions. As its now used to resolve sizeof
lets update the name and description.

Link: http://lkml.kernel.org/r/20170531215653.3240-13-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 7e06f04e98fe2c5a0194ce05c88a270fcf0bfc4d..434c840e2d82f64c127a5c13f1f6aa244544ed43 100644 (file)
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -667,30 +667,30 @@ config RING_BUFFER_STARTUP_TEST
 
         If unsure, say N
 
-config TRACE_ENUM_MAP_FILE
-       bool "Show enum mappings for trace events"
+config TRACE_EVAL_MAP_FILE
+       bool "Show eval mappings for trace events"
        depends on TRACING
        help
-        The "print fmt" of the trace events will show the enum names instead
-       of their values. This can cause problems for user space tools that
-       use this string to parse the raw data as user space does not know
+       The "print fmt" of the trace events will show the enum/sizeof names
+       instead of their values. This can cause problems for user space tools
+       that use this string to parse the raw data as user space does not know
        how to convert the string to its value.
 
        To fix this, there's a special macro in the kernel that can be used
-       to convert the enum into its value. If this macro is used, then the
-       print fmt strings will have the enums converted to their values.
+       to convert an enum/sizeof into its value. If this macro is used, then
+       the print fmt strings will be converted to their values.
 
        If something does not get converted properly, this option can be
-       used to show what enums the kernel tried to convert.
+       used to show what enums/sizeof the kernel tried to convert.
 
-       This option is for debugging the enum conversions. A file is created
-       in the tracing directory called "enum_map" that will show the enum
+       This option is for debugging the conversions. A file is created
+       in the tracing directory called "eval_map" that will show the
        names matched with their values and what trace event system they
        belong too.
 
        Normally, the mapping of the strings to values will be freed after
        boot up or module load. With this option, they will not be freed, as
-       they are needed for the "enum_map" file. Enabling this option will
+       they are needed for the "eval_map" file. Enabling this option will
        increase the memory footprint of the running kernel.
 
        If unsure, say N

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index d830be7f0ba61ff9c71a5d9110bb4d221099bafe..19ac2088d10a8e92ccdcadd5bafd5a39d458c351 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -120,8 +120,8 @@ enum ftrace_dump_mode ftrace_dump_on_oops;
 /* When set, tracing will stop when a WARN*() is hit */
 int __disable_trace_on_warning;
 
-#ifdef CONFIG_TRACE_ENUM_MAP_FILE
-/* Map of enums to their values, for "enum_map" file */
+#ifdef CONFIG_TRACE_EVAL_MAP_FILE
+/* Map of enums to their values, for "eval_map" file */
 struct trace_eval_map_head {
        struct module                   *mod;
        unsigned long                   length;
@@ -145,7 +145,7 @@ static DEFINE_MUTEX(trace_eval_mutex);
  * one at the beginning, and one at the end. The beginning item contains
  * the count of the saved maps (head.length), and the module they
  * belong to if not built in (head.mod). The ending item contains a
- * pointer to the next array of saved enum_eval/enum_map items.
+ * pointer to the next array of saved eval_map items.
  */
 union trace_eval_map_item {
        struct trace_eval_map           map;
@@ -154,7 +154,7 @@ union trace_eval_map_item {
 };
 
 static union trace_eval_map_item *trace_eval_maps;
-#endif /* CONFIG_TRACE_ENUM_MAP_FILE */
+#endif /* CONFIG_TRACE_EVAL_MAP_FILE */
 
 static int tracing_set_tracer(struct trace_array *tr, const char *buf);
 
@@ -4744,7 +4744,7 @@ static const struct file_operations tracing_saved_cmdlines_size_fops = {
        .write          = tracing_saved_cmdlines_size_write,
 };
 
-#ifdef CONFIG_TRACE_ENUM_MAP_FILE
+#ifdef CONFIG_TRACE_EVAL_MAP_FILE
 static union trace_eval_map_item *
 update_eval_map(union trace_eval_map_item *ptr)
 {
@@ -4895,15 +4895,15 @@ trace_insert_eval_map_file(struct module *mod, struct trace_eval_map **start,
 
 static void trace_create_eval_file(struct dentry *d_tracer)
 {
-       trace_create_file("enum_map", 0444, d_tracer,
+       trace_create_file("eval_map", 0444, d_tracer,
                          NULL, &tracing_eval_map_fops);
 }
 
-#else /* CONFIG_TRACE_ENUM_MAP_FILE */
+#else /* CONFIG_TRACE_EVAL_MAP_FILE */
 static inline void trace_create_eval_file(struct dentry *d_tracer) { }
 static inline void trace_insert_eval_map_file(struct module *mod,
                              struct trace_eval_map **start, int len) { }
-#endif /* !CONFIG_TRACE_ENUM_MAP_FILE */
+#endif /* !CONFIG_TRACE_EVAL_MAP_FILE */
 
 static void trace_insert_eval_map(struct module *mod,
                                  struct trace_eval_map **start, int len)
@@ -7759,7 +7759,7 @@ static void trace_module_add_evals(struct module *mod)
        trace_insert_eval_map(mod, mod->trace_evals, mod->num_trace_evals);
 }
 
-#ifdef CONFIG_TRACE_ENUM_MAP_FILE
+#ifdef CONFIG_TRACE_EVAL_MAP_FILE
 static void trace_module_remove_evals(struct module *mod)
 {
        union trace_eval_map_item *map;
@@ -7789,7 +7789,7 @@ static void trace_module_remove_evals(struct module *mod)
 }
 #else
 static inline void trace_module_remove_evals(struct module *mod) { }
-#endif /* CONFIG_TRACE_ENUM_MAP_FILE */
+#endif /* CONFIG_TRACE_EVAL_MAP_FILE */
 
 static int trace_module_notify(struct notifier_block *self,
                               unsigned long val, void *data)