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-rw-r--r--kernel/trace/trace_export.c110
1 files changed, 107 insertions, 3 deletions
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 07a22c3..d06cf89 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -19,8 +19,12 @@
#undef TRACE_STRUCT
#define TRACE_STRUCT(args...) args
+extern void __bad_type_size(void);
+
#undef TRACE_FIELD
#define TRACE_FIELD(type, item, assign) \
+ if (sizeof(type) != sizeof(field.item)) \
+ __bad_type_size(); \
ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
"offset:%u;\tsize:%u;\n", \
(unsigned int)offsetof(typeof(field), item), \
@@ -30,7 +34,7 @@
#undef TRACE_FIELD_SPECIAL
-#define TRACE_FIELD_SPECIAL(type_item, item, cmd) \
+#define TRACE_FIELD_SPECIAL(type_item, item, len, cmd) \
ret = trace_seq_printf(s, "\tfield special:" #type_item ";\t" \
"offset:%u;\tsize:%u;\n", \
(unsigned int)offsetof(typeof(field), item), \
@@ -46,6 +50,9 @@
if (!ret) \
return 0;
+#undef TRACE_FIELD_SIGN
+#define TRACE_FIELD_SIGN(type, item, assign, is_signed) \
+ TRACE_FIELD(type, item, assign)
#undef TP_RAW_FMT
#define TP_RAW_FMT(args...) args
@@ -65,6 +72,22 @@ ftrace_format_##call(struct trace_seq *s) \
return ret; \
}
+#undef TRACE_EVENT_FORMAT_NOFILTER
+#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \
+ tpfmt) \
+static int \
+ftrace_format_##call(struct trace_seq *s) \
+{ \
+ struct args field; \
+ int ret; \
+ \
+ tstruct; \
+ \
+ trace_seq_printf(s, "\nprint fmt: \"%s\"\n", tpfmt); \
+ \
+ return ret; \
+}
+
#include "trace_event_types.h"
#undef TRACE_ZERO_CHAR
@@ -78,6 +101,10 @@ ftrace_format_##call(struct trace_seq *s) \
#define TRACE_FIELD(type, item, assign)\
entry->item = assign;
+#undef TRACE_FIELD_SIGN
+#define TRACE_FIELD_SIGN(type, item, assign, is_signed) \
+ TRACE_FIELD(type, item, assign)
+
#undef TP_CMD
#define TP_CMD(cmd...) cmd
@@ -85,18 +112,95 @@ ftrace_format_##call(struct trace_seq *s) \
#define TRACE_ENTRY entry
#undef TRACE_FIELD_SPECIAL
-#define TRACE_FIELD_SPECIAL(type_item, item, cmd) \
+#define TRACE_FIELD_SPECIAL(type_item, item, len, cmd) \
cmd;
#undef TRACE_EVENT_FORMAT
#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
+int ftrace_define_fields_##call(void); \
+static int ftrace_raw_init_event_##call(void); \
+ \
+struct ftrace_event_call __used \
+__attribute__((__aligned__(4))) \
+__attribute__((section("_ftrace_events"))) event_##call = { \
+ .name = #call, \
+ .id = proto, \
+ .system = __stringify(TRACE_SYSTEM), \
+ .raw_init = ftrace_raw_init_event_##call, \
+ .show_format = ftrace_format_##call, \
+ .define_fields = ftrace_define_fields_##call, \
+}; \
+static int ftrace_raw_init_event_##call(void) \
+{ \
+ INIT_LIST_HEAD(&event_##call.fields); \
+ init_preds(&event_##call); \
+ return 0; \
+} \
+
+#undef TRACE_EVENT_FORMAT_NOFILTER
+#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \
+ tpfmt) \
\
-static struct ftrace_event_call __used \
+struct ftrace_event_call __used \
__attribute__((__aligned__(4))) \
__attribute__((section("_ftrace_events"))) event_##call = { \
.name = #call, \
.id = proto, \
.system = __stringify(TRACE_SYSTEM), \
.show_format = ftrace_format_##call, \
+};
+
+#include "trace_event_types.h"
+
+#undef TRACE_FIELD
+#define TRACE_FIELD(type, item, assign) \
+ ret = trace_define_field(event_call, #type, #item, \
+ offsetof(typeof(field), item), \
+ sizeof(field.item), is_signed_type(type)); \
+ if (ret) \
+ return ret;
+
+#undef TRACE_FIELD_SPECIAL
+#define TRACE_FIELD_SPECIAL(type, item, len, cmd) \
+ ret = trace_define_field(event_call, #type "[" #len "]", #item, \
+ offsetof(typeof(field), item), \
+ sizeof(field.item), 0); \
+ if (ret) \
+ return ret;
+
+#undef TRACE_FIELD_SIGN
+#define TRACE_FIELD_SIGN(type, item, assign, is_signed) \
+ ret = trace_define_field(event_call, #type, #item, \
+ offsetof(typeof(field), item), \
+ sizeof(field.item), is_signed); \
+ if (ret) \
+ return ret;
+
+#undef TRACE_FIELD_ZERO_CHAR
+#define TRACE_FIELD_ZERO_CHAR(item)
+
+#undef TRACE_EVENT_FORMAT
+#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
+int \
+ftrace_define_fields_##call(void) \
+{ \
+ struct ftrace_event_call *event_call = &event_##call; \
+ struct args field; \
+ int ret; \
+ \
+ __common_field(unsigned char, type, 0); \
+ __common_field(unsigned char, flags, 0); \
+ __common_field(unsigned char, preempt_count, 0); \
+ __common_field(int, pid, 1); \
+ __common_field(int, tgid, 1); \
+ \
+ tstruct; \
+ \
+ return ret; \
}
+
+#undef TRACE_EVENT_FORMAT_NOFILTER
+#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, \
+ tpfmt)
+
#include "trace_event_types.h"
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