opd_kernel.c File Reference

Dealing with the kernel and kernel module samples. More...

#include "opd_kernel.h"
#include "opd_proc.h"
#include "opd_image.h"
#include "opd_mapping.h"
#include "opd_printf.h"
#include "opd_24_stats.h"
#include "oprofiled.h"
#include "op_fileio.h"
#include "op_config_24.h"
#include "op_libiberty.h"
#include "p_module.h"
#include <string.h>
#include <stdlib.h>
#include <errno.h>

Include dependency graph for liblegacy/opd_kernel.c:

Classes
struct	opd_module
Functions
void	opd_init_kernel_image (void)
	opd_init_kernel_image - initialise the kernel image
void	opd_parse_kernel_range (char const *arg)
	opd_parse_kernel_range - parse the kernel range values
void	opd_clear_module_info (void)
	opd_clear_module_info - clear kernel module information
void	opd_handle_kernel_sample (unsigned long eip, u32 counter)
	opd_handle_kernel_sample - process a kernel sample
int	opd_eip_is_kernel (unsigned long eip)
	opd_eip_is_kernel - is the sample from kernel/module space
void	opd_add_kernel_map (struct opd_proc *proc, unsigned long eip)
	opd_add_kernel_map - add a module or kernel maps to a proc struct

---

Detailed Description

Dealing with the kernel and kernel module samples.

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

---

Function Documentation

void opd_add_kernel_map	(	struct opd_proc *	proc,
		unsigned long	eip
	)

opd_add_kernel_map - add a module or kernel maps to a proc struct

Parameters:

	proc	owning proc of the new mapping
	eip	eip inside the new mapping

We assume than eip >= kernel_start

References app_name, opd_module::end, opd_module::image, kernel_end, kernel_start, opd_module::name, opd_image::name, opd_proc::name, opd_add_mapping(), opd_clear_module_info(), opd_get_kernel_image(), opd_module::start, opd_proc::tgid, opd_proc::tid, verbprintf, vmisc, vmlinux, and vmodule.

Referenced by opd_put_sample().

void opd_clear_module_info

(

void

)

opd_clear_module_info - clear kernel module information

Clear and free all kernel module information and reset values.

References list_entry, list_for_each_safe, opd_module::module_list, opd_module::name, opd_clear_kernel_mapping(), verbprintf, and vmodule.

Referenced by opd_add_kernel_map().

int opd_eip_is_kernel

(

unsigned long

eip

)

opd_eip_is_kernel - is the sample from kernel/module space

Parameters:

eip

EIP value

Returns 1 if eip is in the address space starting at kernel_start, 0 otherwise.

References kernel_start.

Referenced by opd_put_sample().

void opd_handle_kernel_sample	(	unsigned long	eip,
		u32	counter
	)

opd_handle_kernel_sample - process a kernel sample

Parameters:

	eip	EIP value of sample
	counter	counter number

Handle a sample in kernel address space or in a module. The sample is output to the relevant image file.

References kernel_end, kernel_start, no_vmlinux, opd_24_stats, OPD_KERNEL, and opd_put_image_sample().

Referenced by opd_put_sample().

void opd_init_kernel_image

(

void

)

opd_init_kernel_image - initialise the kernel image

References opd_get_kernel_image(), opd_image::ref_count, and vmlinux.

void opd_parse_kernel_range

(

char const *

arg

)

opd_parse_kernel_range - parse the kernel range values

References kernel_end, kernel_start, verbprintf, and vmisc.