opd_sfile.h File Reference

Management of sample files. More...

#include "opd_cookie.h"
#include "odb.h"
#include "op_hw_config.h"
#include "op_types.h"
#include "op_list.h"
#include <sys/types.h>

Include dependency graph for opd_sfile.h:

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Classes
struct	sfile
	Each set of sample files (where a set is over the physical counter types) will have one of these for it. More...
struct	cg_entry
	a call-graph entry More...
Defines
#define	CG_HASH_SIZE   16
#define	UNUSED_EMBEDDED_OFFSET   ~0LLU
Functions
void	sfile_clear_kernel (void)
	clear any sfiles that are for the kernel
void	sfile_clear_anon (struct anon_mapping *)
	clear any sfiles for the given anon mapping
void	sfile_sync_files (void)
	sync sample files
void	sfile_close_files (void)
	close sample files
int	sfile_lru_clear (void)
	clear out a certain amount of LRU entries return non-zero if the lru is already empty
void	sfile_get (struct sfile *sf)
	remove a sfile from the lru list, protecting it from sfile_lru_clear()
void	sfile_put (struct sfile *sf)
	add this sfile to lru list
struct sfile *	sfile_find (struct transient const *trans)
	Find the sfile for the current parameters.
void	sfile_log_sample (struct transient const *trans)
	Log the sample in a previously located sfile.
void	sfile_log_sample_count (struct transient const *trans, unsigned long int count)
	Log the event/cycle count in a previously located sfile.
void	sfile_init (void)
	initialise hashes

---

Detailed Description

Management of sample files.

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

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Define Documentation

#define CG_HASH_SIZE   16

#define UNUSED_EMBEDDED_OFFSET   ~0LLU

Referenced by opd_open_sample_file(), and opd_process_samples().

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Function Documentation

void sfile_clear_anon

(

struct anon_mapping *

)

clear any sfiles for the given anon mapping

void sfile_clear_kernel

(

void

)

clear any sfiles that are for the kernel

void sfile_close_files

(

void

)

close sample files

struct sfile* sfile_find

(

struct transient const *

trans

)

[read]

Find the sfile for the current parameters.

Note that is required that the PC value be set appropriately (needed for kernel images)

References find_kernel_image(), kern_cmdline::has_cmdline, sfile::hash, kern_cmdline::hash, HASH_BITS, kern_cmdline::kern_pid, list_entry, list_for_each, NO_COOKIE, OPD_LOST_KERNEL, OPD_LOST_NO_MAPPING, OPD_NO_APP_KERNEL_SAMPLE, OPD_NO_CTX, opd_stats, sfile_get(), sfile_put(), verbose_cookie(), verbprintf, and vsamples.

void sfile_get

(

struct sfile *

sf

)

remove a sfile from the lru list, protecting it from sfile_lru_clear()

References sfile::lru.

Referenced by opd_open_sample_file(), and sfile_find().

void sfile_init

(

void

)

initialise hashes

References HASH_SIZE.

void sfile_log_sample

(

struct transient const *

trans

)

Log the sample in a previously located sfile.

References sfile_log_sample_count().

void sfile_log_sample_count	(	struct transient const *	trans,
		unsigned long int	count
	)

Log the event/cycle count in a previously located sfile.

References odb_update_node_with_offset(), OPD_LOST_SAMPLEFILE, opd_stats, TRACING_ON, and vsamples.

Referenced by opd_log_ibs_count(), opd_log_ibs_event(), and sfile_log_sample().

int sfile_lru_clear

(

void

)

clear out a certain amount of LRU entries return non-zero if the lru is already empty

References list_entry, list_for_each_safe, sfile::lru, and LRU_AMOUNT.

Referenced by opd_open_sample_file().

void sfile_put

(

struct sfile *

sf

)

add this sfile to lru list

References sfile::lru.

Referenced by opd_open_sample_file(), and sfile_find().

void sfile_sync_files

(

void

)

sync sample files