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/** @file
*
* Take a possible embedded image and put it in a struct image
* data structure.
*/
#include <gpxe/image.h>
#include <gpxe/malloc.h>
#include <gpxe/uaccess.h>
#include <gpxe/umalloc.h>
#include <gpxe/embedded.h>
extern char _embedded_image_start[], _embedded_image_end[];
struct image *embedded_image(void)
{
static int reclaimed = 0;
struct image *image;
size_t eisize = _embedded_image_end - _embedded_image_start;
if ( !eisize )
return NULL; /* No embedded image */
if ( reclaimed )
return NULL; /* Already reclaimed */
DBG ( "Embedded image: %zd bytes at %p\n",
eisize, _embedded_image_start );
image = alloc_image();
if (!image)
return NULL;
image->len = eisize;
image->data = umalloc(eisize);
if (image->data == UNULL) {
image_put(image);
return image = NULL;
}
copy_to_user(image->data, 0, _embedded_image_start, eisize);
register_image(image);
/* Reclaim embedded image memory */
reclaimed = 1;
mpopulate(_embedded_image_start, eisize);
return image;
}
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