opd_mapping.h File Reference

#include "op_list.h"

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Data Structures
struct	opd_map
Functions
void	opd_init_hash_map (void)
void	opd_cleanup_hash_name (void)
void	opd_handle_mapping (struct op_note const *note)
void	opd_add_mapping (struct opd_proc *proc, struct opd_image *image, unsigned long start, unsigned long offset, unsigned long end)
void	opd_kill_maps (struct opd_proc *proc)
static int	opd_is_in_map (struct opd_map *map, unsigned long eip)
static unsigned long	opd_map_offset (struct opd_map *map, unsigned long eip)

---

Detailed Description

Management of process mappings

Remarks:

Copyright 2002 OProfile authors

Read the file COPYING

Author:

John Levon

Philippe Elie

Definition in file opd_mapping.h.

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Function Documentation

void opd_add_mapping	(	struct opd_proc *	proc,
		struct opd_image *	image,
		unsigned long	start,
		unsigned long	offset,
		unsigned long	end
	)

opd_put_mapping - add a mapping to a process

Parameters:

	proc	process to add map to
	image	mapped image pointer
	start	start of mapping
	offset	file offset of mapping
	end	end of mapping

Add the mapping specified to the process proc growing the maps array if necessary.

Definition at line 68 of file opd_mapping.c.

References opd_map::end, opd_map::image, list_add_tail(), list_empty(), opd_proc::maps, opd_proc::name, opd_image::name, opd_map::next, opd_map::offset, opd_image::ref_count, opd_map::start, opd_proc::tid, verbprintf, and vmisc.

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

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void opd_cleanup_hash_name

(

void

)

op_cleanup_hash_name

release resource owned by hash_name array

Definition at line 33 of file opd_mapping.c.

References hash_name, and OP_HASH_MAP_NR.

Referenced by clean_exit().

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void opd_handle_mapping

(

struct op_note const *

note

)

opd_handle_mapping - deal with mapping notification

Parameters:

note

mapping notification

Deal with one notification that a process has mapped in a new executable file. The mapping information is added to the process structure.

Definition at line 139 of file opd_mapping.c.

References op_note::addr, op_note::hash, op_note::len, opd_proc::name, opd_image::name, op_note::offset, OP_HASH_MAP_NR, opd_add_mapping(), opd_get_hash_name(), opd_get_image(), opd_get_proc(), opd_new_proc(), op_note::pid, op_note::tgid, verbprintf, and vmisc.

Referenced by opd_do_notes().

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void opd_init_hash_map

(

void

)

opd_init_hash_map - initialise the hashmap

Definition at line 42 of file opd_mapping.c.

References hashmapdevfd, and OP_HASH_MAP_SIZE.

Referenced by op_open_files().

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static int opd_is_in_map	(	struct opd_map *	map,
		unsigned long	eip
	)			[inline, static]

opd_is_in_map - check whether an EIP is within a mapping

Parameters:

	map	map to check
	eip	EIP value

Return 1 if the EIP value is within the boundaries of the map , 0 otherwise.

Definition at line 90 of file opd_mapping.h.

References opd_map::start.

Referenced by opd_lookup_maps().

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void opd_kill_maps

(

struct opd_proc *

proc

)

opd_kill_maps - delete mapping information for a process

Parameters:

proc

process to work on

Frees structures holding mapping information

Definition at line 55 of file opd_mapping.c.

References opd_map::image, list_del(), list_entry, list_for_each_safe, opd_proc::maps, opd_map::next, and opd_delete_image().

Referenced by opd_delete_proc(), and opd_handle_exec().

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static unsigned long opd_map_offset	(	struct opd_map *	map,
		unsigned long	eip
	)			[inline, static]

Definition at line 105 of file opd_mapping.h.

References opd_map::offset, and opd_map::start.

Referenced by opd_lookup_maps().

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