linux-toradex.git/kernel/trace/trace_export.c, branch tegra-9.12.14

tracing: remove some unused macros

2009-09-14T15:43:24+00:00

- remove FTRACE_ENTRY_STRUCT_ONLY()
- remove TRACE_XXX() macros

Signed-off-by: Li Zefan 
LKML-Reference: <4AADF6E6.3080606@cn.fujitsu.com>
Signed-off-by: Steven Rostedt

ftrace: add compile-time check on F_printk()

2009-09-14T15:42:10+00:00

Make sure F_printk() has corrent format and args, and make sure
changes in F_STRUCT() won't break F_printk().

Signed-off-by: Li Zefan 
LKML-Reference: <4AADF6CC.1060809@cn.fujitsu.com>
Signed-off-by: Steven Rostedt

tracing: use the new trace_entries.h to create format files

2009-09-13T03:08:10+00:00

This patch changes the way the format files in

  debugfs/tracing/events/ftrace/*/format

are created. It uses the new trace_entries.h file to automate the
creation of the format files to ensure that they are always in sync
with the actual structures. This is the same methodology used to
create the format files for the TRACE_EVENT macro.

This also updates the filter creation that was built on the creation
of the format files.

Signed-off-by: Steven Rostedt

tracing/filters: Defer pred allocation

2009-08-31T08:58:08+00:00

init_preds() allocates about 5392 bytes of memory (on x86_32) for
a TRACE_EVENT. With my config, at system boot total memory occupied
is:

	5392 * (642 + 15) == 3459KB

642 == cat available_events | wc -l
15 == number of dirs in events/ftrace

That's quite a lot, so we'd better defer memory allocation util
it's needed, that's when filter is used.

Signed-off-by: Li Zefan 
Cc: Steven Rostedt 
Cc: Frederic Weisbecker 
Cc: Tom Zanussi 
Cc: Masami Hiramatsu 
LKML-Reference: <4A9B8EA5.6020700@cn.fujitsu.com>
Signed-off-by: Ingo Molnar

tracing/filters: Add __field_ext() to TRACE_EVENT

2009-08-26T04:32:06+00:00

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 
LKML-Reference: <4A7B9272.6050709@cn.fujitsu.com>

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

Signed-off-by: Steven Rostedt

tracing/events: Add trace_define_common_fields()

2009-08-19T13:02:24+00:00

Extract duplicate code. Also prepare for the later patch.

Signed-off-by: Li Zefan 
Cc: Jason Baron 
Cc: Steven Rostedt 
Cc: Frederic Weisbecker 
LKML-Reference: <4A8BAFB8.1010304@cn.fujitsu.com>
Signed-off-by: Ingo Molnar

tracing/events: Add ftrace_event_call param to define_fields()

2009-08-19T13:02:23+00:00

This parameter is needed by syscall events to add define_fields()
handler.

Signed-off-by: Li Zefan 
Cc: Jason Baron 
Cc: Steven Rostedt 
Cc: Frederic Weisbecker 
LKML-Reference: <4A8BAF90.6060801@cn.fujitsu.com>
Signed-off-by: Ingo Molnar

tracing: Add ftrace event call parameter to its field descriptor handler

2009-08-11T18:35:29+00:00

Add the struct ftrace_event_call as a parameter of its show_format()
callback. This way we can use it from the syscall trace events to
retrieve the syscall name from the ftrace event call parameter and
describe its fields using the syscalls metadata.

Signed-off-by: Frederic Weisbecker 
Cc: Lai Jiangshan 
Cc: Steven Rostedt 
Cc: Peter Zijlstra 
Cc: Mathieu Desnoyers 
Cc: Jiaying Zhang 
Cc: Martin Bligh 
Cc: Li Zefan 
Cc: Masami Hiramatsu 
Cc: Jason Baron

tracing/filters: distinguish between signed and unsigned fields

2009-04-29T12:06:03+00:00

The new filter comparison ops need to be able to distinguish between
signed and unsigned field types, so add an is_signed flag/param to the
event field struct/trace_define_fields().  Also define a simple macro,
is_signed_type() to determine the signedness at compile time, used in the
trace macros.  If the is_signed_type() macro won't work with a specific
type, a new slightly modified version of TRACE_FIELD() called
TRACE_FIELD_SIGN(), allows the signedness to be set explicitly.

[ Impact: extend trace-filter code for new feature ]

Signed-off-by: Tom Zanussi 
Acked-by: Steven Rostedt 
Cc: fweisbec@gmail.com
Cc: Li Zefan 
LKML-Reference: <1240905893.6416.120.camel@tropicana>
Signed-off-by: Ingo Molnar

tracing: add size checks for exported ftrace internal structures

2009-04-24T03:03:56+00:00

The events exported by TRACE_EVENT are automated and are guaranteed
to be correct when used.

The internal ftrace structures on the other hand are more manually
exported. These require the ftrace maintainer to make sure they
are up to date.

This patch adds a size check to help flag when a type changes in
an internal ftrace data structure, and the update needs to be reflected
in the export.

If a export is incorrect, then the only harm is that the user space
tools will not know how to correctly read the internal structures of
ftrace.

[ Impact: help prevent inconsistent ftrace format print outs ]

Signed-off-by: Steven Rostedt