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Diffstat (limited to 'kernel/trace/trace_selftest.c')
-rw-r--r--kernel/trace/trace_selftest.c151
1 files changed, 4 insertions, 147 deletions
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 81003b4..155a415 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -13,12 +13,9 @@ static inline int trace_valid_entry(struct trace_entry *entry)
case TRACE_WAKE:
case TRACE_STACK:
case TRACE_PRINT:
- case TRACE_SPECIAL:
case TRACE_BRANCH:
case TRACE_GRAPH_ENT:
case TRACE_GRAPH_RET:
- case TRACE_HW_BRANCHES:
- case TRACE_KSYM:
return 1;
}
return 0;
@@ -30,7 +27,7 @@ static int trace_test_buffer_cpu(struct trace_array *tr, int cpu)
struct trace_entry *entry;
unsigned int loops = 0;
- while ((event = ring_buffer_consume(tr->buffer, cpu, NULL))) {
+ while ((event = ring_buffer_consume(tr->buffer, cpu, NULL, NULL))) {
entry = ring_buffer_event_data(event);
/*
@@ -256,7 +253,8 @@ trace_selftest_startup_function(struct tracer *trace, struct trace_array *tr)
/* Maximum number of functions to trace before diagnosing a hang */
#define GRAPH_MAX_FUNC_TEST 100000000
-static void __ftrace_dump(bool disable_tracing);
+static void
+__ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode);
static unsigned int graph_hang_thresh;
/* Wrap the real function entry probe to avoid possible hanging */
@@ -267,7 +265,7 @@ static int trace_graph_entry_watchdog(struct ftrace_graph_ent *trace)
ftrace_graph_stop();
printk(KERN_WARNING "BUG: Function graph tracer hang!\n");
if (ftrace_dump_on_oops)
- __ftrace_dump(false);
+ __ftrace_dump(false, DUMP_ALL);
return 0;
}
@@ -691,38 +689,6 @@ trace_selftest_startup_sched_switch(struct tracer *trace, struct trace_array *tr
}
#endif /* CONFIG_CONTEXT_SWITCH_TRACER */
-#ifdef CONFIG_SYSPROF_TRACER
-int
-trace_selftest_startup_sysprof(struct tracer *trace, struct trace_array *tr)
-{
- unsigned long count;
- int ret;
-
- /* start the tracing */
- ret = tracer_init(trace, tr);
- if (ret) {
- warn_failed_init_tracer(trace, ret);
- return ret;
- }
-
- /* Sleep for a 1/10 of a second */
- msleep(100);
- /* stop the tracing. */
- tracing_stop();
- /* check the trace buffer */
- ret = trace_test_buffer(tr, &count);
- trace->reset(tr);
- tracing_start();
-
- if (!ret && !count) {
- printk(KERN_CONT ".. no entries found ..");
- ret = -1;
- }
-
- return ret;
-}
-#endif /* CONFIG_SYSPROF_TRACER */
-
#ifdef CONFIG_BRANCH_TRACER
int
trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr)
@@ -755,112 +721,3 @@ trace_selftest_startup_branch(struct tracer *trace, struct trace_array *tr)
}
#endif /* CONFIG_BRANCH_TRACER */
-#ifdef CONFIG_HW_BRANCH_TRACER
-int
-trace_selftest_startup_hw_branches(struct tracer *trace,
- struct trace_array *tr)
-{
- struct trace_iterator *iter;
- struct tracer tracer;
- unsigned long count;
- int ret;
-
- if (!trace->open) {
- printk(KERN_CONT "missing open function...");
- return -1;
- }
-
- ret = tracer_init(trace, tr);
- if (ret) {
- warn_failed_init_tracer(trace, ret);
- return ret;
- }
-
- /*
- * The hw-branch tracer needs to collect the trace from the various
- * cpu trace buffers - before tracing is stopped.
- */
- iter = kzalloc(sizeof(*iter), GFP_KERNEL);
- if (!iter)
- return -ENOMEM;
-
- memcpy(&tracer, trace, sizeof(tracer));
-
- iter->trace = &tracer;
- iter->tr = tr;
- iter->pos = -1;
- mutex_init(&iter->mutex);
-
- trace->open(iter);
-
- mutex_destroy(&iter->mutex);
- kfree(iter);
-
- tracing_stop();
-
- ret = trace_test_buffer(tr, &count);
- trace->reset(tr);
- tracing_start();
-
- if (!ret && !count) {
- printk(KERN_CONT "no entries found..");
- ret = -1;
- }
-
- return ret;
-}
-#endif /* CONFIG_HW_BRANCH_TRACER */
-
-#ifdef CONFIG_KSYM_TRACER
-static int ksym_selftest_dummy;
-
-int
-trace_selftest_startup_ksym(struct tracer *trace, struct trace_array *tr)
-{
- unsigned long count;
- int ret;
-
- /* start the tracing */
- ret = tracer_init(trace, tr);
- if (ret) {
- warn_failed_init_tracer(trace, ret);
- return ret;
- }
-
- ksym_selftest_dummy = 0;
- /* Register the read-write tracing request */
-
- ret = process_new_ksym_entry("ksym_selftest_dummy",
- HW_BREAKPOINT_R | HW_BREAKPOINT_W,
- (unsigned long)(&ksym_selftest_dummy));
-
- if (ret < 0) {
- printk(KERN_CONT "ksym_trace read-write startup test failed\n");
- goto ret_path;
- }
- /* Perform a read and a write operation over the dummy variable to
- * trigger the tracer
- */
- if (ksym_selftest_dummy == 0)
- ksym_selftest_dummy++;
-
- /* stop the tracing. */
- tracing_stop();
- /* check the trace buffer */
- ret = trace_test_buffer(tr, &count);
- trace->reset(tr);
- tracing_start();
-
- /* read & write operations - one each is performed on the dummy variable
- * triggering two entries in the trace buffer
- */
- if (!ret && count != 2) {
- printk(KERN_CONT "Ksym tracer startup test failed");
- ret = -1;
- }
-
-ret_path:
- return ret;
-}
-#endif /* CONFIG_KSYM_TRACER */
-