Re: Apparent i386 alloca.S bug (was: adsl/pppoe no longer connecting on 5.1)

From: Garrett Wollman <wollman_at_lcs.mit.edu>
Date: Thu, 12 Jun 2003 12:06:57 -0400 (EDT)
<<On Thu, 12 Jun 2003 22:22:07 +1000, Tim Robbins <tjr_at_freebsd.org> said:

> builtin alloca() until we figure out how to fix the one in libc.

It is fundamentally impossible to ``fix'' the alloca() implementation
in libc.  alloca() CANNOT be implemented that way.  If GCC's builtin
alloca() is disabled by requesting a strict Standard C environment
(which is not appropriate for FreeBSD anyway), then alloca() is just
an ordinary user symbol and programs expecting the implementation to
supply it should simply fail.

-GAWollman
Received on Thu Jun 12 2003 - 07:07:00 UTC

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