[U-Boot] [PATCH 06/33] x86: Panic if there is not relocation data

[Bin Meng]

On Wed, Nov 12, 2014 at 8:17 AM, Simon Glass <sjg at chromium.org> wrote:
> 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 at chromium.org>
> ---
>
>  arch/x86/lib/relocate.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
> index faca38f..b33586b 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;
> --

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>