From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <389CDEAE.FC4EAEB1@flashcom.net>
Date: Sat, 05 Feb 2000 18:38:38 -0800
From: Robert Kavaler <kavaler@flashcom.net>
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To: linuxppc-dev@lists.linuxppc.org
Subject: Why does the PPC kernel architecture not use the builtin
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functions such as memcpy?  Are these broken?  I notice that the user
level code uses the builtin, but the kernel specifies -fno-builtin.
This seems like a big hit to efficiency.

In the same vein, the code (.h) to do byte swapping has a comment that
the ppc byteswap instruction should not be used, so instead a less
effecient code sequence is used.  This is supposed to be a problem with
a specific rev. of the compiler.  Does anyone know if this has been
fixed in the newest gcc or egcs (soon to be merged) compilers?

Thank you,

Robert Kavaler


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