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Date:      Sun, 01 Dec 2013 18:25:39 -0600
From:      Nathan Whitehorn <nwhitehorn@freebsd.org>
To:        Aleksander <aleek@FreeBSD.org>, freebsd-hackers@freebsd.org
Subject:   Re: modyfing cross toolchain compilation
Message-ID:  <529BD383.508@freebsd.org>
In-Reply-To: <CABkKHSYQ=xM3BcrY1yueuQhKtXTh8SWJZ=LNrk-mthUrrOeoWw@mail.gmail.com>
References:  <CABkKHSYQ=xM3BcrY1yueuQhKtXTh8SWJZ=LNrk-mthUrrOeoWw@mail.gmail.com>

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On 10/21/13 01:38, Aleksander wrote:
> hello!
>
> Few days ago, when playing with linux-ppc, I have identified a bug with
> PowerPC toolchain. It turns out that PowerPC e500 core is not compilant
> with generic ppc ISA - it lacks of 'lwsync' instruction. This instruction
> is used in libstdc++.so library, so I need to modify toolchain build
> process by adding -me500v2 option, when building  libraries. Can you tell
> me how to do it, so I can test this potential soluton?
>
This is fixed now in the E500 kernel by adding emulation of the lwsync 
instruction.
-Nathan



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