This repository has been archived by the owner on Jul 13, 2022. It is now read-only.
forked from intervigilium/android_kernel_htc_msm8660
-
Notifications
You must be signed in to change notification settings - Fork 4
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
random: add tracepoints for easier debugging and verification
commit 00ce1db1a634746040ace24c09a4e3a7949a3145 upstream. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Loading branch information
Showing
2 changed files
with
156 additions
and
4 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,134 @@ | ||
#undef TRACE_SYSTEM | ||
#define TRACE_SYSTEM random | ||
|
||
#if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ) | ||
#define _TRACE_RANDOM_H | ||
|
||
#include <linux/writeback.h> | ||
#include <linux/tracepoint.h> | ||
|
||
DECLARE_EVENT_CLASS(random__mix_pool_bytes, | ||
TP_PROTO(const char *pool_name, int bytes, unsigned long IP), | ||
|
||
TP_ARGS(pool_name, bytes, IP), | ||
|
||
TP_STRUCT__entry( | ||
__field( const char *, pool_name ) | ||
__field( int, bytes ) | ||
__field(unsigned long, IP ) | ||
), | ||
|
||
TP_fast_assign( | ||
__entry->pool_name = pool_name; | ||
__entry->bytes = bytes; | ||
__entry->IP = IP; | ||
), | ||
|
||
TP_printk("%s pool: bytes %d caller %pF", | ||
__entry->pool_name, __entry->bytes, (void *)__entry->IP) | ||
); | ||
|
||
DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes, | ||
TP_PROTO(const char *pool_name, int bytes, unsigned long IP), | ||
|
||
TP_ARGS(pool_name, bytes, IP) | ||
); | ||
|
||
DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock, | ||
TP_PROTO(const char *pool_name, int bytes, unsigned long IP), | ||
|
||
TP_ARGS(pool_name, bytes, IP) | ||
); | ||
|
||
TRACE_EVENT(credit_entropy_bits, | ||
TP_PROTO(const char *pool_name, int bits, int entropy_count, | ||
int entropy_total, unsigned long IP), | ||
|
||
TP_ARGS(pool_name, bits, entropy_count, entropy_total, IP), | ||
|
||
TP_STRUCT__entry( | ||
__field( const char *, pool_name ) | ||
__field( int, bits ) | ||
__field( int, entropy_count ) | ||
__field( int, entropy_total ) | ||
__field(unsigned long, IP ) | ||
), | ||
|
||
TP_fast_assign( | ||
__entry->pool_name = pool_name; | ||
__entry->bits = bits; | ||
__entry->entropy_count = entropy_count; | ||
__entry->entropy_total = entropy_total; | ||
__entry->IP = IP; | ||
), | ||
|
||
TP_printk("%s pool: bits %d entropy_count %d entropy_total %d " | ||
"caller %pF", __entry->pool_name, __entry->bits, | ||
__entry->entropy_count, __entry->entropy_total, | ||
(void *)__entry->IP) | ||
); | ||
|
||
TRACE_EVENT(get_random_bytes, | ||
TP_PROTO(int nbytes, unsigned long IP), | ||
|
||
TP_ARGS(nbytes, IP), | ||
|
||
TP_STRUCT__entry( | ||
__field( int, nbytes ) | ||
__field(unsigned long, IP ) | ||
), | ||
|
||
TP_fast_assign( | ||
__entry->nbytes = nbytes; | ||
__entry->IP = IP; | ||
), | ||
|
||
TP_printk("nbytes %d caller %pF", __entry->nbytes, (void *)__entry->IP) | ||
); | ||
|
||
DECLARE_EVENT_CLASS(random__extract_entropy, | ||
TP_PROTO(const char *pool_name, int nbytes, int entropy_count, | ||
unsigned long IP), | ||
|
||
TP_ARGS(pool_name, nbytes, entropy_count, IP), | ||
|
||
TP_STRUCT__entry( | ||
__field( const char *, pool_name ) | ||
__field( int, nbytes ) | ||
__field( int, entropy_count ) | ||
__field(unsigned long, IP ) | ||
), | ||
|
||
TP_fast_assign( | ||
__entry->pool_name = pool_name; | ||
__entry->nbytes = nbytes; | ||
__entry->entropy_count = entropy_count; | ||
__entry->IP = IP; | ||
), | ||
|
||
TP_printk("%s pool: nbytes %d entropy_count %d caller %pF", | ||
__entry->pool_name, __entry->nbytes, __entry->entropy_count, | ||
(void *)__entry->IP) | ||
); | ||
|
||
|
||
DEFINE_EVENT(random__extract_entropy, extract_entropy, | ||
TP_PROTO(const char *pool_name, int nbytes, int entropy_count, | ||
unsigned long IP), | ||
|
||
TP_ARGS(pool_name, nbytes, entropy_count, IP) | ||
); | ||
|
||
DEFINE_EVENT(random__extract_entropy, extract_entropy_user, | ||
TP_PROTO(const char *pool_name, int nbytes, int entropy_count, | ||
unsigned long IP), | ||
|
||
TP_ARGS(pool_name, nbytes, entropy_count, IP) | ||
); | ||
|
||
|
||
|
||
#endif /* _TRACE_RANDOM_H */ | ||
|
||
/* This part must be outside protection */ | ||
#include <trace/define_trace.h> |