From: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Date: Wed, 14 Jul 2021 22:05:46 +0000 (-0500)
Subject: image: Add support for relocating crypto_algos in linker lists
X-Git-Url: http://git.dujemihanovic.xyz/img/%7B%7B%20%24style.RelPermalink%20%7D%7D?a=commitdiff_plain;h=b9826bf0c16ec225042c3fa760f8e22e6d9bc329;p=u-boot.git

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>
---

diff --git a/common/image-sig.c b/common/image-sig.c
index d680bf7d98..fb0035524e 100644
--- a/common/image-sig.c
+++ b/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)