operf_sfile.cpp File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
#include "operf_sfile.h"
#include "operf_kernel.h"
#include "operf_utils.h"
#include "cverb.h"
#include "op_string.h"
#include "operf_mangling.h"
#include "operf_stats.h"
#include "op_libiberty.h"

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Defines
#define	HASH_SIZE 2048
#define	HASH_BITS (HASH_SIZE - 1)
#define	LRU_AMOUNT 256
Typedefs
typedef int(*	operf_sfile_func )(struct operf_sfile , void )
Functions
static	LIST_HEAD (lru_list)
static unsigned long	sfile_hash (struct operf_transient const trans, struct operf_kernel_image ki)
static int	do_match (struct operf_sfile const sf, struct operf_kernel_image const ki, bool is_anon, const char image_name, size_t image_len, const char appname, size_t app_len, pid_t tgid, pid_t tid, unsigned int cpu)
int	operf_sfile_equal (struct operf_sfile const sf, struct operf_sfile const sf2)
static struct operf_sfile *	create_sfile (unsigned long hash, struct operf_transient const trans, struct operf_kernel_image ki)
struct operf_sfile *	operf_sfile_find (struct operf_transient const *trans)
void	operf_sfile_dup (struct operf_sfile to, struct operf_sfile from)
static odb_t *	get_file (struct operf_transient const *trans, int is_cg)
static void	verbose_print_sample (struct operf_sfile *sf, vma_t pc, uint counter)
static void	verbose_sample (struct operf_transient const *trans, vma_t pc)
static void	verbose_arc (struct operf_transient const *trans, vma_t from, vma_t to)
void	operf_sfile_log_arc (struct operf_transient const *trans)
void	operf_sfile_log_sample (struct operf_transient const *trans)
void	operf_sfile_log_sample_count (struct operf_transient const *trans, unsigned long int count)
static int	close_sfile (struct operf_sfile sf, void data __attribute__((unused)))
static void	kill_sfile (struct operf_sfile *sf)
static int	sync_sfile (struct operf_sfile sf, void data __attribute__((unused)))
static int	is_sfile_kernel (struct operf_sfile sf, void data __attribute__((unused)))
static void	for_one_sfile (struct operf_sfile sf, operf_sfile_func func, void data)
static void	for_each_sfile (operf_sfile_func func, void *data)
void	operf_sfile_clear_kernel (void)
void	operf_sfile_sync_files (void)
static int	_release_resources (struct operf_sfile sf __attribute__((unused)), void p __attribute__((unused)))
void	operf_sfile_close_files (void)
static int	always_true (void)
int	operf_sfile_lru_clear (void)
void	operf_sfile_get (struct operf_sfile *sf)
void	operf_sfile_put (struct operf_sfile *sf)
void	operf_sfile_init (void)
Variables
static struct list_head	hashes [HASH_SIZE]

Define Documentation

#define HASH_BITS (HASH_SIZE - 1)

Definition at line 28 of file operf_sfile.cpp.

#define HASH_SIZE 2048

Definition at line 27 of file operf_sfile.cpp.

#define LRU_AMOUNT 256

Definition at line 520 of file operf_sfile.cpp.

Typedef Documentation

typedef int(* operf_sfile_func)(struct operf_sfile *, void *)

Definition at line 451 of file operf_sfile.cpp.

Function Documentation

static int _release_resources	(	struct operf_sfile *sf	__attribute__(unused),
		void *p	__attribute__(unused)
	)			`[static]`

Definition at line 503 of file operf_sfile.cpp.

Referenced by operf_sfile_close_files().

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static int always_true ( void ) [static]

Definition at line 514 of file operf_sfile.cpp.

Referenced by operf_sfile_lru_clear().

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static int close_sfile	(	struct operf_sfile *	sf,
		void *data	__attribute__(unused)
	)			`[static]`

Definition at line 408 of file operf_sfile.cpp.

References operf_sfile::files, odb_close(), and op_nr_counters.

Referenced by kill_sfile().

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static struct operf_sfile* create_sfile	(	unsigned long	hash,
		struct operf_transient const *	trans,
		struct operf_kernel_image *	ki
	)			`[static, read]`

create a new sfile matching the current transient parameters

Definition at line 133 of file operf_sfile.cpp.

References operf_transient::app_filename, operf_sfile::app_filename, operf_transient::app_len, operf_sfile::app_len, operf_sfile::cg_hash, CG_HASH_SIZE, operf_transient::cpu, operf_sfile::cpu, operf_transient::end_addr, operf_sfile::end_addr, operf_sfile::ext_files, operf_sfile::files, operf_sfile::hashval, operf_transient::image_len, operf_sfile::image_len, operf_transient::image_name, operf_sfile::image_name, operf_transient::is_anon, operf_sfile::is_anon, operf_sfile::kernel, list_init(), odb_init(), op_nr_counters, operf_options::separate_cpu, operf_transient::start_addr, operf_sfile::start_addr, operf_transient::tgid, operf_sfile::tgid, operf_transient::tid, and operf_sfile::tid.

Referenced by operf_sfile_find().

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static int do_match	(	struct operf_sfile const *	sf,
		struct operf_kernel_image const *	ki,
		bool	is_anon,
		const char *	image_name,
		size_t	image_len,
		const char *	appname,
		size_t	app_len,
		pid_t	tgid,
		pid_t	tid,
		unsigned int	cpu
	)			`[static]`

Definition at line 80 of file operf_sfile.cpp.

References operf_sfile::app_filename, operf_sfile::app_len, operf_sfile::cpu, operf_sfile::image_len, operf_sfile::image_name, operf_sfile::is_anon, operf_sfile::kernel, operf_options::separate_cpu, operf_sfile::tgid, and operf_sfile::tid.

Referenced by operf_sfile_equal(), and operf_sfile_find().

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static void for_each_sfile	(	operf_sfile_func	func,
		void *	data
	)			`[static]`

Definition at line 480 of file operf_sfile.cpp.

References for_one_sfile(), list_entry, list_for_each_safe, and lru.

Referenced by operf_sfile_clear_kernel(), operf_sfile_close_files(), and operf_sfile_sync_files().

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static void for_one_sfile	(	struct operf_sfile *	sf,
		operf_sfile_func	func,
		void *	data
	)			`[static]`

Definition at line 454 of file operf_sfile.cpp.

References operf_sfile::cg_hash, CG_HASH_SIZE, operf_cg_entry::hash, kill_sfile(), list_del(), list_entry, list_for_each_safe, and operf_cg_entry::to.

Referenced by for_each_sfile(), and operf_sfile_lru_clear().

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static odb_t* get_file	(	struct operf_transient const *	trans,
		int	is_cg
	)			`[static]`

Definition at line 234 of file operf_sfile.cpp.

References operf_sfile::cg_hash, CG_HASH_SIZE, operf_transient::current, operf_transient::event, operf_sfile::files, operf_cg_entry::hash, operf_sfile::hashval, operf_transient::last, list_add(), list_entry, list_for_each, odb_open_count(), op_nr_counters, operf_open_sample_file(), operf_sfile_dup(), operf_sfile_equal(), and operf_cg_entry::to.

Referenced by operf_sfile_log_arc(), and operf_sfile_log_sample_count().

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static int is_sfile_kernel	(	struct operf_sfile *	sf,
		void *data	__attribute__(unused)
	)			`[static]`

Definition at line 445 of file operf_sfile.cpp.

References operf_sfile::kernel.

Referenced by operf_sfile_clear_kernel().

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static void kill_sfile ( struct operf_sfile * sf ) [static]

Definition at line 423 of file operf_sfile.cpp.

References close_sfile(), operf_sfile::hash, list_del(), and operf_sfile::lru.

Referenced by for_one_sfile().

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static LIST_HEAD ( lru_list ) [static]

All sfiles are on this list.

void operf_sfile_clear_kernel ( void )

clear any sfiles that are for the kernel

Definition at line 492 of file operf_sfile.cpp.

References for_each_sfile(), and is_sfile_kernel().

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void operf_sfile_close_files ( void )

close sample files

Definition at line 508 of file operf_sfile.cpp.

References _release_resources(), and for_each_sfile().

Referenced by OP_perf_utils::op_release_resources().

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void operf_sfile_dup	(	struct operf_sfile *	to,
		struct operf_sfile *	from
	)

Definition at line 215 of file operf_sfile.cpp.

References operf_sfile::cg_hash, CG_HASH_SIZE, operf_sfile::files, operf_sfile::hash, list_init(), operf_sfile::lru, odb_init(), and op_nr_counters.

Referenced by get_file().

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int operf_sfile_equal	(	struct operf_sfile const *	sf,
		struct operf_sfile const *	sf2
	)

Definition at line 121 of file operf_sfile.cpp.

References operf_sfile::app_filename, operf_sfile::app_len, operf_sfile::cpu, do_match(), operf_sfile::image_len, operf_sfile::image_name, operf_sfile::is_anon, operf_sfile::kernel, operf_sfile::tgid, and operf_sfile::tid.

Referenced by get_file().

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struct operf_sfile* operf_sfile_find ( struct operf_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 175 of file operf_sfile.cpp.

References operf_transient::app_filename, operf_transient::app_len, operf_transient::cpu, create_sfile(), cverb, do_match(), operf_sfile::hash, hashes, operf_transient::image_len, operf_transient::image_name, operf_transient::in_kernel, operf_transient::is_anon, list_add(), list_entry, list_for_each, lru, operf_find_kernel_image(), OPERF_LOST_KERNEL, operf_sfile_get(), operf_sfile_put(), operf_stats, operf_transient::pc, sfile_hash(), operf_transient::tgid, operf_transient::tid, and vsfile.

Referenced by __handle_callchain(), and __handle_sample_event().

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void operf_sfile_get ( struct operf_sfile * sf )

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

Definition at line 548 of file operf_sfile.cpp.

References list_del(), and operf_sfile::lru.

Referenced by operf_open_sample_file(), and operf_sfile_find().

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void operf_sfile_init ( void )

initialise hashes

Definition at line 562 of file operf_sfile.cpp.

References HASH_SIZE, hashes, and list_init().

Referenced by OP_perf_utils::op_write_event().

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void operf_sfile_log_arc ( struct operf_transient const * trans )

Log a callgraph arc.

Definition at line 323 of file operf_sfile.cpp.

References operf_transient::current, cverb, get_file(), operf_sfile::is_anon, operf_sfile::kernel, operf_transient::last, operf_transient::last_pc, odb_update_node(), OPERF_LOST_SAMPLEFILE, operf_stats, operf_transient::pc, operf_kernel_image::start, operf_sfile::start_addr, varcs, and verbose_arc().

Referenced by __handle_callchain().

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void operf_sfile_log_sample ( struct operf_transient const * trans )

Log the sample in a previously located sfile.

Definition at line 366 of file operf_sfile.cpp.

References operf_sfile_log_sample_count().

Referenced by __handle_sample_event().

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void operf_sfile_log_sample_count	(	struct operf_transient const *	trans,
		unsigned long int	count
	)

Log the event/cycle count in a previously located sfile

Definition at line 372 of file operf_sfile.cpp.

References operf_transient::current, cverb, get_file(), operf_transient::in_kernel, operf_sfile::is_anon, operf_sfile::kernel, odb_update_node_with_offset(), OPERF_KERNEL, OPERF_LOST_SAMPLEFILE, OPERF_PROCESS, OPERF_SAMPLES, operf_stats, operf_transient::pc, operf_kernel_image::start, operf_sfile::start_addr, verbose_sample(), and vsfile.

Referenced by operf_sfile_log_sample().

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int operf_sfile_lru_clear ( void )

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

Definition at line 527 of file operf_sfile.cpp.

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

Referenced by operf_open_sample_file().

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void operf_sfile_put ( struct operf_sfile * sf )

add this sfile to lru list

Definition at line 555 of file operf_sfile.cpp.

References list_add_tail(), and operf_sfile::lru.

Referenced by operf_open_sample_file(), and operf_sfile_find().

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void operf_sfile_sync_files ( void )

sync sample files

Definition at line 498 of file operf_sfile.cpp.

References for_each_sfile(), and sync_sfile().

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static unsigned long sfile_hash	(	struct operf_transient const *	trans,
		struct operf_kernel_image *	ki
	)			`[static]`

Definition at line 38 of file operf_sfile.cpp.

References operf_transient::app_filename, operf_transient::app_len, operf_transient::cpu, operf_kernel_image::end, operf_transient::end_addr, HASH_BITS, operf_transient::image_len, operf_transient::image_name, operf_transient::in_kernel, operf_transient::is_anon, operf_options::separate_cpu, operf_kernel_image::start, operf_transient::start_addr, operf_transient::tgid, and VMA_SHIFT.

Referenced by operf_sfile_find().

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static int sync_sfile	(	struct operf_sfile *	sf,
		void *data	__attribute__(unused)
	)			`[static]`

Definition at line 431 of file operf_sfile.cpp.

References operf_sfile::files, odb_sync(), and op_nr_counters.

Referenced by operf_sfile_sync_files().

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static void verbose_arc	(	struct operf_transient const *	trans,
		vma_t	from,
		vma_t	to
	)			`[static]`

Definition at line 315 of file operf_sfile.cpp.

References operf_transient::current, operf_transient::event, and verbose_print_sample().

Referenced by operf_sfile_log_arc().

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static void verbose_print_sample	(	struct operf_sfile *	sf,
		vma_t	pc,
		uint	counter
	)			`[static]`

Definition at line 290 of file operf_sfile.cpp.

References operf_sfile::app_filename, operf_kernel_image::end, operf_sfile::end_addr, operf_sfile::image_name, operf_sfile::is_anon, operf_sfile::kernel, operf_kernel_image::name, operf_kernel_image::start, operf_sfile::start_addr, and operf_sfile::tgid.

Referenced by verbose_arc(), and verbose_sample().

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static void verbose_sample	(	struct operf_transient const *	trans,
		vma_t	pc
	)			`[static]`

Definition at line 307 of file operf_sfile.cpp.

References operf_transient::current, operf_transient::event, and verbose_print_sample().

Referenced by operf_sfile_log_sample_count().

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Variable Documentation

struct list_head hashes[HASH_SIZE] [static]

All sfiles are hashed into these lists

Definition at line 31 of file operf_sfile.cpp.

Referenced by operf_sfile_find(), and operf_sfile_init().

operf_sfile.cpp File Reference

Defines

Typedefs

Functions

Variables

Define Documentation

Typedef Documentation

Function Documentation

Variable Documentation