opd_image.h File Reference

#include "op_list.h"
#include "op_config_24.h"
#include "op_types.h"
#include <time.h>

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Data Structures
struct	opd_image
Typedefs
typedef void(*	opd_image_cb )(struct opd_image *)
Functions
void	opd_for_each_image (opd_image_cb imagecb)
void	opd_init_images (void)
void	opd_delete_image (struct opd_image *image)
struct opd_image *	opd_get_kernel_image (char const name, char const app_name, pid_t tid, pid_t tgid)
struct opd_image *	opd_get_image (char const name, char const app_name, int kernel, pid_t tid, pid_t tgid)
int	opd_get_nr_images (void)

Detailed Description

Management of binary images

Remarks:: Copyright 2002 OProfile authors; Read the file COPYING

Author:: John Levon; Philippe Elie

Definition in file opd_image.h.

Typedef Documentation

typedef void(* opd_image_cb)(struct opd_image *)

callback function passed to opd_for_each_image()

Definition at line 52 of file opd_image.h.

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.

Definition at line 49 of file opd_image.c.

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

Referenced by opd_24_exit(), opd_kill_maps(), and opd_remove_kernel_mapping().

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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.

Definition at line 79 of file opd_image.c.

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

Referenced by opd_24_exit(), and opd_sighup().

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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.

Definition at line 249 of file opd_image.c.

References opd_find_image(), and opd_new_image().

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

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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.

Definition at line 260 of file opd_image.c.

References opd_get_image().

Referenced by opd_add_kernel_map(), opd_get_module_info(), and opd_init_kernel_image().

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