Date: Thu, 16 Apr 2020 11:58:00 +0200 From: Szabolcs Nagy <nsz@...t70.net> To: Nicholas Piggin via Libc-alpha <libc-alpha@...rceware.org> Cc: Rich Felker <dalias@...c.org>, libc-dev@...ts.llvm.org, linuxppc-dev@...ts.ozlabs.org, musl@...ts.openwall.com Subject: Re: Powerpc Linux 'scv' system call ABI proposal take 2 * Nicholas Piggin via Libc-alpha <libc-alpha@...rceware.org> [2020-04-16 10:16:54 +1000]: > Well it would have to test HWCAP and patch in or branch to two > completely different sequences including register save/restores yes. > You could have the same asm and matching clobbers to put the sequence > inline and then you could patch the one sc/scv instruction I suppose. how would that 'patch' work? there are many reasons why you don't want libc to write its .text
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