From: Simon Glass <sjg@chromium.org>
Date: Sat, 15 Nov 2014 01:18:23 +0000 (-0700)
Subject: x86: Panic if there is no relocation data
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=512e581c86a4066147a9a095eaed05a7aa9043df;p=u-boot.git

x86: Panic if there is no relocation data

This normally indicates a problem which will prevent relocation from
functioning, resulting in a hang. Panic in this case to make it easier
to debug.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index faca38fff4..b33586b54c 100644
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -76,6 +76,9 @@ int do_elf_reloc_fixups(void)
 	/* The size of the region of u-boot that runs out of RAM. */
 	uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;
 
+	if (re_src == re_end)
+		panic("No relocation data");
+
 	do {
 		/* Get the location from the relocation entry */
 		offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;