Subversion Repositories HelenOS

unsigned int elf_load(int fd, elf_header_t *header);

typedef void (*entry_point_t)(void);

static int elf_load_file(char *file_name, elf_header_t *header)

{

    int fd;

    int rc;

    printf("open and read '%s'...\n", file_name);

    fd = open(file_name, 0);

    if (fd < 0) {

        printf("failed opening file\n");

        return -1;

    }

    rc = elf_load(fd, header);

    printf("elf_load() -> %d\n", rc);

    close(fd);

    return rc;

}

static void elf_run(elf_header_t *header)

{

    entry_point_t entry_point;

    entry_point = (entry_point_t)header->e_entry;

    (*entry_point)();

    /* not reached */

}

static int elf_create_pcb(elf_header_t *header)

{

    pcb_t *pcb;

    void *a;

    pcb = (pcb_t *)PCB_ADDRESS;

    a = as_area_create(pcb, sizeof(pcb_t), AS_AREA_READ | AS_AREA_WRITE);

    if (a == (void *)(-1)) {

        printf("elf_create_pcb: memory mapping failed\n");

        return EE_MEMORY;

    }

    pcb->entry = (entry_point_t)header->e_entry;

    return 0;

}