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image: Add support for relocating crypto_algos in linker lists

Function pointers from crypto_algos array are relocated, when
NEEDS_MANUAL_RELOC is set. This relocation doesn't happen if the algo
is placed in a linker list. Implement this relocation.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Alexandru Gagniuc 2 years ago
parent
commit
b9826bf0c1
1 changed files with 13 additions and 0 deletions
  1. 13 0
      common/image-sig.c

+ 13 - 0
common/image-sig.c

@@ -97,6 +97,19 @@ struct crypto_algo *image_get_crypto_algo(const char *full_name)
 	struct crypto_algo *crypto, *end;
 	const char *name;
 
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+	static bool done;
+
+	if (!done) {
+		crypto = ll_entry_start(struct crypto_algo, cryptos);
+		end = ll_entry_end(struct crypto_algo, cryptos);
+		for (; crypto < end; crypto++) {
+			crypto->name += gd->reloc_off;
+			crypto->verify += gd->reloc_off;
+		}
+	}
+#endif
+
 	/* Move name to after the comma */
 	name = strchr(full_name, ',');
 	if (!name)