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image: Add a function to find a script in an image

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Split this functionality out of the 'source' command so it can be used
from another place. For now leave it where it is, but a future patch will
move it out of cmd/

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-01-06 08:52:27 -06:00 • committed by Tom Rini
parent 32bab0eae5
commit 858fefd5fc
2 changed files with 136 additions and 107 deletions
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14
include/image.h
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@ -729,6 +729,20 @@ int fit_image_load(struct bootm_headers *images, ulong addr,
int image_source_script(ulong addr, const char *fit_uname,
const char *confname);
/**
* image_locate_script() - Locate the raw script in an image
*
* @buf: Address of image
* @size: Size of image in bytes
* @fit_uname: Node name of FIT image to read
* @confname: Node name of FIT config to read
* @datap: Returns pointer to raw script on success
* @lenp: Returns size of raw script on success
* @return 0 if OK, non-zero on error
*/
int image_locate_script(void *buf, int size, const char *fit_uname,
const char *confname, char **datap, uint *lenp);
/**
* fit_get_node_from_config() - Look up an image a FIT by type
*