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Diffstat (limited to 'kernel/trace/trace_events_hist.c')
-rw-r--r--kernel/trace/trace_events_hist.c69
1 files changed, 43 insertions, 26 deletions
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 319f9c8ca7e7..5e6a988a8a51 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -217,6 +217,20 @@ static u64 hist_field_dynstring(struct hist_field *hist_field,
return (u64)(unsigned long)addr;
}
+static u64 hist_field_reldynstring(struct hist_field *hist_field,
+ struct tracing_map_elt *elt,
+ struct trace_buffer *buffer,
+ struct ring_buffer_event *rbe,
+ void *event)
+{
+ u32 *item = event + hist_field->field->offset;
+ u32 str_item = *item;
+ int str_loc = str_item & 0xffff;
+ char *addr = (char *)&item[1] + str_loc;
+
+ return (u64)(unsigned long)addr;
+}
+
static u64 hist_field_pstring(struct hist_field *hist_field,
struct tracing_map_elt *elt,
struct trace_buffer *buffer,
@@ -1956,8 +1970,10 @@ static struct hist_field *create_hist_field(struct hist_trigger_data *hist_data,
if (field->filter_type == FILTER_STATIC_STRING) {
hist_field->fn = hist_field_string;
hist_field->size = field->size;
- } else if (field->filter_type == FILTER_DYN_STRING)
+ } else if (field->filter_type == FILTER_DYN_STRING) {
hist_field->fn = hist_field_dynstring;
+ } else if (field->filter_type == FILTER_RDYN_STRING)
+ hist_field->fn = hist_field_reldynstring;
else
hist_field->fn = hist_field_pstring;
} else {
@@ -2745,9 +2761,9 @@ static char *find_trigger_filter(struct hist_trigger_data *hist_data,
}
static struct event_command trigger_hist_cmd;
-static int event_hist_trigger_func(struct event_command *cmd_ops,
- struct trace_event_file *file,
- char *glob, char *cmd, char *param);
+static int event_hist_trigger_parse(struct event_command *cmd_ops,
+ struct trace_event_file *file,
+ char *glob, char *cmd, char *param);
static bool compatible_keys(struct hist_trigger_data *target_hist_data,
struct hist_trigger_data *hist_data,
@@ -2950,8 +2966,8 @@ create_field_var_hist(struct hist_trigger_data *target_hist_data,
var_hist->hist_data = hist_data;
/* Create the new histogram with our variable */
- ret = event_hist_trigger_func(&trigger_hist_cmd, file,
- "", "hist", cmd);
+ ret = event_hist_trigger_parse(&trigger_hist_cmd, file,
+ "", "hist", cmd);
if (ret) {
kfree(cmd);
kfree(var_hist->cmd);
@@ -4961,7 +4977,8 @@ static inline void add_to_key(char *compound_key, void *key,
struct ftrace_event_field *field;
field = key_field->field;
- if (field->filter_type == FILTER_DYN_STRING)
+ if (field->filter_type == FILTER_DYN_STRING ||
+ field->filter_type == FILTER_RDYN_STRING)
size = *(u32 *)(rec + field->offset) >> 16;
else if (field->filter_type == FILTER_STATIC_STRING)
size = field->size;
@@ -5712,8 +5729,8 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data)
for (i = 0; i < hist_data->n_field_var_hists; i++) {
file = hist_data->field_var_hists[i]->hist_data->event_file;
cmd = hist_data->field_var_hists[i]->cmd;
- ret = event_hist_trigger_func(&trigger_hist_cmd, file,
- "!hist", "hist", cmd);
+ ret = event_hist_trigger_parse(&trigger_hist_cmd, file,
+ "!hist", "hist", cmd);
WARN_ON_ONCE(ret < 0);
}
}
@@ -5742,7 +5759,7 @@ static void event_hist_trigger_free(struct event_trigger_ops *ops,
}
static struct event_trigger_ops event_hist_trigger_ops = {
- .func = event_hist_trigger,
+ .trigger = event_hist_trigger,
.print = event_hist_trigger_print,
.init = event_hist_trigger_init,
.free = event_hist_trigger_free,
@@ -5776,7 +5793,7 @@ static void event_hist_trigger_named_free(struct event_trigger_ops *ops,
}
static struct event_trigger_ops event_hist_trigger_named_ops = {
- .func = event_hist_trigger,
+ .trigger = event_hist_trigger,
.print = event_hist_trigger_print,
.init = event_hist_trigger_named_init,
.free = event_hist_trigger_named_free,
@@ -5893,7 +5910,7 @@ static bool hist_trigger_match(struct event_trigger_data *data,
return true;
}
-static int hist_register_trigger(char *glob, struct event_trigger_ops *ops,
+static int hist_register_trigger(char *glob,
struct event_trigger_data *data,
struct trace_event_file *file)
{
@@ -6045,7 +6062,7 @@ static bool hist_trigger_check_refs(struct event_trigger_data *data,
return false;
}
-static void hist_unregister_trigger(char *glob, struct event_trigger_ops *ops,
+static void hist_unregister_trigger(char *glob,
struct event_trigger_data *data,
struct trace_event_file *file)
{
@@ -6129,9 +6146,9 @@ static void hist_unreg_all(struct trace_event_file *file)
}
}
-static int event_hist_trigger_func(struct event_command *cmd_ops,
- struct trace_event_file *file,
- char *glob, char *cmd, char *param)
+static int event_hist_trigger_parse(struct event_command *cmd_ops,
+ struct trace_event_file *file,
+ char *glob, char *cmd, char *param)
{
unsigned int hist_trigger_bits = TRACING_MAP_BITS_DEFAULT;
struct event_trigger_data *trigger_data;
@@ -6245,7 +6262,7 @@ static int event_hist_trigger_func(struct event_command *cmd_ops,
goto out_free;
}
- cmd_ops->unreg(glob+1, trigger_ops, trigger_data, file);
+ cmd_ops->unreg(glob+1, trigger_data, file);
se_name = trace_event_name(file->event_call);
se = find_synth_event(se_name);
if (se)
@@ -6254,7 +6271,7 @@ static int event_hist_trigger_func(struct event_command *cmd_ops,
goto out_free;
}
- ret = cmd_ops->reg(glob, trigger_ops, trigger_data, file);
+ ret = cmd_ops->reg(glob, trigger_data, file);
/*
* The above returns on success the # of triggers registered,
* but if it didn't register any it returns zero. Consider no
@@ -6297,7 +6314,7 @@ enable:
return ret;
out_unreg:
- cmd_ops->unreg(glob+1, trigger_ops, trigger_data, file);
+ cmd_ops->unreg(glob+1, trigger_data, file);
out_free:
if (cmd_ops->set_filter)
cmd_ops->set_filter(NULL, trigger_data, NULL);
@@ -6314,7 +6331,7 @@ static struct event_command trigger_hist_cmd = {
.name = "hist",
.trigger_type = ETT_EVENT_HIST,
.flags = EVENT_CMD_FL_NEEDS_REC,
- .func = event_hist_trigger_func,
+ .parse = event_hist_trigger_parse,
.reg = hist_register_trigger,
.unreg = hist_unregister_trigger,
.unreg_all = hist_unreg_all,
@@ -6366,28 +6383,28 @@ hist_enable_count_trigger(struct event_trigger_data *data,
}
static struct event_trigger_ops hist_enable_trigger_ops = {
- .func = hist_enable_trigger,
+ .trigger = hist_enable_trigger,
.print = event_enable_trigger_print,
.init = event_trigger_init,
.free = event_enable_trigger_free,
};
static struct event_trigger_ops hist_enable_count_trigger_ops = {
- .func = hist_enable_count_trigger,
+ .trigger = hist_enable_count_trigger,
.print = event_enable_trigger_print,
.init = event_trigger_init,
.free = event_enable_trigger_free,
};
static struct event_trigger_ops hist_disable_trigger_ops = {
- .func = hist_enable_trigger,
+ .trigger = hist_enable_trigger,
.print = event_enable_trigger_print,
.init = event_trigger_init,
.free = event_enable_trigger_free,
};
static struct event_trigger_ops hist_disable_count_trigger_ops = {
- .func = hist_enable_count_trigger,
+ .trigger = hist_enable_count_trigger,
.print = event_enable_trigger_print,
.init = event_trigger_init,
.free = event_enable_trigger_free,
@@ -6429,7 +6446,7 @@ static void hist_enable_unreg_all(struct trace_event_file *file)
static struct event_command trigger_hist_enable_cmd = {
.name = ENABLE_HIST_STR,
.trigger_type = ETT_HIST_ENABLE,
- .func = event_enable_trigger_func,
+ .parse = event_enable_trigger_parse,
.reg = event_enable_register_trigger,
.unreg = event_enable_unregister_trigger,
.unreg_all = hist_enable_unreg_all,
@@ -6440,7 +6457,7 @@ static struct event_command trigger_hist_enable_cmd = {
static struct event_command trigger_hist_disable_cmd = {
.name = DISABLE_HIST_STR,
.trigger_type = ETT_HIST_ENABLE,
- .func = event_enable_trigger_func,
+ .parse = event_enable_trigger_parse,
.reg = event_enable_register_trigger,
.unreg = event_enable_unregister_trigger,
.unreg_all = hist_enable_unreg_all,
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-02-01 19:43:03 +0000