From: Andreas Oberritter <obi@opendreambox.org>
To: openembedded-devel@lists.openembedded.org
Subject: Re: undefined reference to `__gnu_thumb1_case_uqi'
Date: Sun, 17 Apr 2011 14:31:09 +0200 [thread overview]
Message-ID: <4DAADD8D.6060708@opendreambox.org> (raw)
In-Reply-To: <4DA97D88.9020509@atmel.com>
On 04/16/2011 01:29 PM, Ulf Samuelsson wrote:
> The following code, (part of a bootloader - at91bootstrap-3.0)
>
> "void sub(unsigned char Mode)
> {
> switch (Mode) {
> ...
> /* 4 case statements */
> "
>
> generates an error when compiling in thumb mode, using the latest OE.
>
> "undefined reference to `__gnu_thumb1_case_uqi'"
>
> I think this subroutine will optimize a switch statment
> with only a few choices.
>
>
> Googling for this seems to indicate that __gnu_thumb1_case_uqi is part
> of libgcc, but hidden.
>
> Switches used: -DCONFIG_THUMB -mthumb -mthumb-interwork
>
> Any clues on fixing this?
> Meanwhile I will rewrite the bootloader using if statements
Does adding -ffreestanding help?
Regards,
Andreas
next prev parent reply other threads:[~2011-04-17 12:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-16 11:29 undefined reference to `__gnu_thumb1_case_uqi' Ulf Samuelsson
2011-04-17 12:31 ` Andreas Oberritter [this message]
2011-05-03 18:41 ` Khem Raj
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