opd_sfile.h File Reference

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

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Data Structures
struct	sfile
struct	cg_entry
Defines
#define	CG_HASH_SIZE   16
#define	UNUSED_EMBEDDED_OFFSET   ~0LLU
Functions
void	sfile_clear_kernel (void)
void	sfile_clear_anon (struct anon_mapping *)
void	sfile_sync_files (void)
void	sfile_close_files (void)
int	sfile_lru_clear (void)
void	sfile_get (struct sfile *sf)
void	sfile_put (struct sfile *sf)
struct sfile *	sfile_find (struct transient const *trans)
void	sfile_log_sample (struct transient const *trans)
void	sfile_log_sample_count (struct transient const *trans, unsigned long int count)
void	sfile_init (void)

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Detailed Description

Management of sample files

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

Definition in file opd_sfile.h.

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Define Documentation

#define CG_HASH_SIZE   16

Definition at line 27 of file opd_sfile.h.

Referenced by create_sfile(), for_one_sfile(), get_file(), ibs_sfile_get(), operf_sfile_dup(), and sfile_dup().

#define UNUSED_EMBEDDED_OFFSET   ~0LLU

Definition at line 28 of file opd_sfile.h.

Referenced by create_sfile(), 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

Definition at line 676 of file opd_sfile.c.

References for_each_sfile(), and is_sfile_anon().

Referenced by clear_anon_maps(), and do_lru().

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void sfile_clear_kernel

(

void

)

clear any sfiles that are for the kernel

Definition at line 670 of file opd_sfile.c.

References for_each_sfile(), and is_sfile_kernel().

Referenced by opd_clear_modules().

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void sfile_close_files

(

void

)

close sample files

Definition at line 688 of file opd_sfile.c.

References close_sfile(), and for_each_sfile().

Referenced by opd_sighup().

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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)

Definition at line 267 of file opd_sfile.c.

References create_sfile(), find_kernel_image(), kern_cmdline::has_cmdline, sfile::hash, kern_cmdline::hash, HASH_BITS, hashes, operf_transient::in_kernel, kern_cmdline::kern_pid, kernel_cmdlines, list_add(), list_entry, list_for_each, lru, NO_COOKIE, OPD_LOST_KERNEL, OPD_LOST_NO_MAPPING, OPD_NO_APP_KERNEL_SAMPLE, OPD_NO_CTX, opd_stats, operf_transient::pc, sfile_get(), sfile_hash(), sfile_put(), operf_transient::tgid, trans, trans_match(), verbose_cookie(), verbprintf, and vsamples.

Referenced by opd_put_ibs_sample(), opd_put_sample(), and opd_put_spu_sample().

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void sfile_get

(

struct sfile *

sf

)

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

Definition at line 728 of file opd_sfile.c.

References list_del(), and sfile::lru.

Referenced by opd_open_sample_file(), and sfile_find().

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void sfile_init

(

void

)

initialise hashes

Definition at line 742 of file opd_sfile.c.

References HASH_SIZE, hashes, kernel_cmdlines, and list_init().

Referenced by opd_26_init().

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void sfile_log_sample

(

struct transient const *

trans

)

Log the sample in a previously located sfile.

Definition at line 534 of file opd_sfile.c.

References sfile_log_sample_count(), and trans.

Referenced by opd_put_sample(), and opd_put_spu_sample().

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

Log the event/cycle count in a previously located sfile

Definition at line 540 of file opd_sfile.c.

References operf_transient::current, get_file(), operf_sfile::kernel, operf_transient::last, odb_update_node_with_offset(), OPD_LOST_SAMPLEFILE, opd_stats, operf_transient::pc, sfile_log_arc(), operf_kernel_image::start, TRACING_ON, trans, verbose_sample(), and vsamples.

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

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int sfile_lru_clear

(

void

)

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

Definition at line 707 of file opd_sfile.c.

References always_true(), for_one_sfile(), list_empty(), list_entry, list_for_each_safe, lru, and LRU_AMOUNT.

Referenced by complete_dump(), and opd_open_sample_file().

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void sfile_put

(

struct sfile *

sf

)

add this sfile to lru list

Definition at line 735 of file opd_sfile.c.

References list_add_tail(), and sfile::lru.

Referenced by opd_open_sample_file(), and sfile_find().

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void sfile_sync_files

(

void

)

sync sample files

Definition at line 682 of file opd_sfile.c.

References for_each_sfile(), and sync_sfile().

Referenced by opd_alarm().

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