opd_image.c File Reference

Management of binary images. More...

#include "opd_image.h"
#include "opd_printf.h"
#include "opd_sample_files.h"
#include "opd_24_stats.h"
#include "oprofiled.h"
#include "op_file.h"
#include "op_config_24.h"
#include "op_libiberty.h"
#include "op_string.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

Include dependency graph for opd_image.c:

Defines
#define	OPD_IMAGE_HASH_SIZE   2048
Functions
void	opd_init_images (void)
	initialize opd_image container
int	opd_get_nr_images (void)
	opd_get_nr_images - return number of images
void	opd_delete_image (struct opd_image *image)
void	opd_for_each_image (opd_image_cb image_cb)
struct opd_image *	opd_get_image (char const *name, char const *app_name, int kernel, pid_t tid, pid_t tgid)
	opd_get_image - get an image from the image structure
struct opd_image *	opd_get_kernel_image (char const *name, char const *app_name, pid_t tid, pid_t tgid)
	opd_get_kernel_image - get a kernel image

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Detailed Description

Management of binary images.

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

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Define Documentation

#define OPD_IMAGE_HASH_SIZE   2048

Referenced by opd_for_each_image(), and opd_init_images().

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Function Documentation

void opd_delete_image

(

struct opd_image *

image

)

Parameters:

image

the image pointer

Decrement reference count of image, if reference count is zero flush and close the samples files then freeze all memory belonging to this image.

References opd_image::app_name, opd_image::hash_next, opd_image::kernel, opd_image::name, opd_close_image_samples_files(), opd_image::ref_count, opd_image::tgid, opd_image::tid, verbprintf, and vmisc.

Referenced by opd_kill_maps().

void opd_for_each_image

(

opd_image_cb

imagecb

)

Parameters:

imagecb

callback to apply onto each existing image struct

the callback receive a struct opd_image * (not a const struct) and is allowed to freeze the image struct itself.

References opd_image::hash_next, list_entry, list_for_each_safe, and OPD_IMAGE_HASH_SIZE.

struct opd_image* opd_get_image	(	char const *	name,
		char const *	app_name,
		int	kernel,
		pid_t	tid,
		pid_t	tgid
	)			[read]

opd_get_image - get an image from the image structure

Parameters:

	name	name of image
	app_name	the application name where belongs this image
	kernel	is the image a kernel/module image
	tid	thread id
	tgid	thread group id

Get the image specified by the file name name from the image structure. If it is not present, the image is added to the structure. In either case, the image number is returned.

Referenced by opd_get_kernel_image(), opd_handle_fork(), and opd_handle_mapping().

struct opd_image* opd_get_kernel_image	(	char const *	name,
		char const *	app_name,
		pid_t	tid,
		pid_t	tgid
	)			[read]

opd_get_kernel_image - get a kernel image

Parameters:

	name	of image
	app_name	application owner of this kernel image. non-null only when separate_kernel_sample != 0
	tid	thread id
	tgid	thread group id

Create and initialise an image adding it to the image lists and to image hash list. Note than at creation reference count is zero, it's caller responsabilities to incr this count.

References opd_get_image().

Referenced by opd_add_kernel_map(), and opd_init_kernel_image().

int opd_get_nr_images

(

void

)

opd_get_nr_images - return number of images

Referenced by opd_print_24_stats().

void opd_init_images

(

void

)

initialize opd_image container

References OPD_IMAGE_HASH_SIZE.