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