[U-Boot] [PATCH v3 3/3] x86: Show the un-relocated IP address in exceptions

[Bin Meng]

On Tue, Aug 11, 2015 at 12:02 PM, Simon Glass <sjg at chromium.org> wrote:
> When trying to figure out where an exception has occured, the relocated
> address is not a lot of help. Its value depends on various factors. Show
> the un-relocated IP as well. This can be looked up in System.map directly.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Tom Rini <trini at konsulko.com>
> ---
>
> Changes in v3:
> - Replace 'regs->eip' with 'eip'
>
> Changes in v2:
> - Tweak the dump_regs() output to say 'Original EIP'
>
>  arch/x86/cpu/interrupts.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c
> index 9217307..addd26e 100644
> --- a/arch/x86/cpu/interrupts.c
> +++ b/arch/x86/cpu/interrupts.c
> @@ -103,6 +103,8 @@ static void dump_regs(struct irq_regs *regs)
>
>         printf("EIP: %04x:[<%08lx>] EFLAGS: %08lx\n",
>                         (u16)cs, eip, eflags);
> +       if (gd->flags & GD_FLG_RELOC)
> +               printf("Original EIP :[<%08lx>]\n", eip - gd->reloc_off);
>
>         printf("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
>                 regs->eax, regs->ebx, regs->ecx, regs->edx);
> --

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