opd_mapping.h

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#ifndef OPD_MAPPING_H
#define OPD_MAPPING_H

#include "op_list.h"

struct opd_image;
struct opd_proc;
struct op_note;

struct opd_map {
    struct list_head next;
    struct opd_image * image;
    unsigned long start;
    unsigned long offset;
    unsigned long end;
};

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);

inline static int opd_is_in_map(struct opd_map * map, unsigned long eip)
{
    return (eip >= map->start && eip < map->end);
}


/*
 * opd_map_offset - return offset of sample against map
 * @param map  map to use
 * @param eip  EIP value to use
 *
 * Returns the offset of the EIP value @eip into
 * the map @map, which is the same as the file offset
 * for the relevant binary image.
 */
inline static unsigned long opd_map_offset(struct opd_map * map,
                       unsigned long eip)
{
    return (eip - map->start) + map->offset;
}

#endif /* OPD_MAPPING_H */