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[image] Add the "imgmem" command

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Provide the "imgmem" command to create an image from an existing block
of memory, for debugging purposes only.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-01-20 18:08:04 +00:00
parent 99ac69b8a9
commit b99477b3fa
5 changed files with 148 additions and 0 deletions
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44
src/usr/imgmgmt.c
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@@ -169,3 +169,47 @@ void imgstat ( struct image *image ) {
printf ( " \"%s\"", image->cmdline );
printf ( "\n" );
}
/**
* Create image from block of memory
*
* @v data Image data
* @v len Length
* @v name Name
* @v image Image to fill in
* @ret rc Return status code
*/
int imgmem ( userptr_t data, size_t len, const char *name,
struct image **image ) {
int rc;
/* Allocate image */
*image = alloc_image ( NULL );
if ( ! *image ) {
rc = -ENOMEM;
goto err_alloc_image;
}
/* Set name */
if ( ( rc = image_set_name ( *image, name ) ) != 0 )
goto err_set_name;
/* Set data */
if ( ( rc = image_set_data ( *image, data, len ) ) != 0 ) {
printf ( "Could not set image data: %s\n", strerror ( rc ) );
goto err_set_data;
}
/* Register image */
if ( ( rc = register_image ( *image ) ) != 0 ) {
printf ( "Could not register image: %s\n", strerror ( rc ) );
goto err_register_image;
}
err_register_image:
err_set_data:
err_set_name:
image_put ( *image );
err_alloc_image:
return rc;
}