typedef struct so_seg {
    /* virtual address */
    uintptr_t vaddr;
    /* size inside the executable file */
    unsigned int file_size;
    /* size in memory (can be larger than file_size) */
    unsigned int mem_size;
    /* offset in file */
    unsigned int offset;
    /* permissions */
    unsigned int perm;
    /* custom data */
    void *data;
} so_seg_t;

typedef struct so_exec {
    /* base adress */
    uintptr_t base_addr;
    /* address of entry point */
    uintptr_t entry;
    /* number of segments */
    int segments_no;
    /* array of segments */
    so_seg_t *segments;
} so_exec_t;

/* parse an executable file */
so_exec_t *so_parse_exec(char *path);

/*
 * start an executable file, previously parsed in a so_exec_t structure
 * (jumps to the executable's entry point)
 */
void so_start_exec(so_exec_t *exec, char *argv[]);