Date: Thu, 24 Mar 2005 10:36:05 +0000 From: Nick Barnes <Nick.Barnes@pobox.com> To: Bruce Evans <bde@zeta.org.au> Cc: freebsd-amd64@freebsd.org Subject: Re: undefined reference to `memset' Message-ID: <90609.1111660565@thrush.ravenbrook.com> In-Reply-To: <20050324182524.J97436@delplex.bde.org> from Bruce Evans <bde@zeta.org.au> of "Thu, 24 Mar 2005 19:31:14 %2B1100"
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At 2005-03-24 08:31:14+0000, Bruce Evans writes: > what is gcc to do when -fno-builtin tells it to turn off its > builtins and -ffreestanding tells it that the relevant interfaces > might not exist in the library? Plainly, GCC should generate code which fills the array with zeroes. It's not obliged to generate code which calls memset (either builtin or in a library). If it knows that it can do so, then fine. Otherwise it must do it the Old Fashioned Way. So this is surely a bug in GCC. Nick B, who used to write compilers for a living
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