Date: Sat, 15 Sep 2001 12:13:58 -0600 From: Warner Losh <imp@harmony.village.org> To: hackers@FreeBSD.ORG Cc: Yar Tikhiy <yar@FreeBSD.ORG>, Mike Smith <msmith@FreeBSD.ORG>, msmith@mass.dis.org Subject: Re: Driver structures & alignment Message-ID: <200109151813.f8FIDwW02011@harmony.village.org> In-Reply-To: Your message of "Sat, 15 Sep 2001 11:03:37 PDT." <20010915110337.B53569@dragon.nuxi.com> References: <20010915110337.B53569@dragon.nuxi.com> <yar@freebsd.org> <200109132309.f8DN9vX03967@mass.dis.org> <20010914122344.A38530@snark.rinet.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <20010915110337.B53569@dragon.nuxi.com> "David O'Brien" writes: : It is best to order this from largest to smallest size if you are worried : about alignment holes, etc. : : int64_t d; /* 8-byte boundary */ : int32_t c; /* 4-byte boundary */ : int32_t f; /* 4-byte boundary */ : int16_t a; : int16_t b; : int8_t e[4]; unfortunately, there are many device structures that are passed around via DMA and hte like that don't let you do this... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200109151813.f8FIDwW02011>