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tracing/filters: Add __field_ext() to TRACE_EVENT

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Add __field_ext(), so a field can be assigned to a specific
filter_type, which matches a corresponding filter function.

For example, a later patch will allow this:
	__field_ext(const char *, str, FILTER_PTR_STR);

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <4A7B9272.6050709@cn.fujitsu.com>

[
  Fixed a -1 to FILTER_OTHER
  Forward ported to latest kernel.
]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Li Zefan
2009-08-07 10:33:22 +08:00
committed by Steven Rostedt
parent aa38e9fc3e
commit 43b51ead3f
6 changed files with 49 additions and 22 deletions
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8
kernel/trace/trace_export.c
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@@ -158,7 +158,8 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#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)); \
sizeof(field.item), \
is_signed_type(type), FILTER_OTHER); \
if (ret) \
return ret;
@@ -166,7 +167,7 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#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); \
sizeof(field.item), 0, FILTER_OTHER); \
if (ret) \
return ret;
@@ -174,7 +175,8 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#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); \
sizeof(field.item), is_signed, \
FILTER_OTHER); \
if (ret) \
return ret;