status_t
load_kernel(stage2_args *args, Directory *volume)
{
int fd = open_from(volume, KERNEL_PATH, O_RDONLY);
if (fd < B_OK)
return fd;
dprintf("load kernel...\n");
elf_init();
status_t status = elf_load_image(fd, &gKernelArgs.kernel_image);
close(fd);
if (status < B_OK) {
dprintf("loading kernel failed: %lx!\n", status);
return status;
}
status = elf_relocate_image(&gKernelArgs.kernel_image);
if (status < B_OK) {
dprintf("relocating kernel failed: %lx!\n", status);
return status;
}
gKernelArgs.kernel_image.name = kernel_args_strdup(KERNEL_IMAGE);
return B_OK;
}
status_t
load_kernel(stage2_args* args, BootVolume& volume)
{
const char *name;
int fd = find_kernel(volume, &name);
if (fd < B_OK)
return fd;
dprintf("load kernel %s...\n", name);
elf_init();
preloaded_image *image;
status_t status = elf_load_image(fd, &image);
close(fd);
if (status < B_OK) {
dprintf("loading kernel failed: %lx!\n", status);
return status;
}
gKernelArgs.kernel_image = image;
status = elf_relocate_image(gKernelArgs.kernel_image);
if (status < B_OK) {
dprintf("relocating kernel failed: %lx!\n", status);
return status;
}
gKernelArgs.kernel_image->name = kernel_args_strdup(name);
return B_OK;
}
status_t
elf_load_image(Directory *directory, const char *path)
{
preloaded_image *image;
TRACE(("elf_load_image(directory = %p, \"%s\")\n", directory, path));
int fd = open_from(directory, path, O_RDONLY);
if (fd < 0)
return fd;
// check if this file has already been loaded
struct stat stat;
if (fstat(fd, &stat) < 0)
return errno;
image = gKernelArgs.preloaded_images;
for (; image != NULL; image = image->next) {
if (image->inode == stat.st_ino) {
// file has already been loaded, no need to load it twice!
close(fd);
return B_OK;
}
}
// we still need to load it, so do it
image = (preloaded_image *)kernel_args_malloc(sizeof(preloaded_image));
if (image == NULL) {
close(fd);
return B_NO_MEMORY;
}
status_t status = elf_load_image(fd, image);
if (status == B_OK) {
image->name = kernel_args_strdup(path);
image->inode = stat.st_ino;
// insert to kernel args
image->next = gKernelArgs.preloaded_images;
gKernelArgs.preloaded_images = image;
} else
kernel_args_free(image);
close(fd);
return status;
}
