From mboxrd@z Thu Jan 1 00:00:00 1970 From: Albert ARIBAUD Date: Wed, 18 Aug 2010 14:49:02 +0200 Subject: [U-Boot] [PATCH] Align linebuf to avoid misaligned aliases of it In-Reply-To: References: <1281773473-5697-1-git-send-email-albert.aribaud@free.fr> <4C6654C5.5010000@free.fr> Message-ID: <4C6BD6BE.6090909@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Le 14/08/2010 19:42, Mike Frysinger a ?crit : > On Sat, Aug 14, 2010 at 4:33 AM, Albert ARIBAUD wrote: >> Le 14/08/2010 10:25, Mike Frysinger a ?crit : >>>> int print_buffer (ulong addr, void* data, uint width, uint count, uint >>>> linelen) >>>> { >>>> - uint8_t linebuf[MAX_LINE_LENGTH_BYTES + 1]; >>>> + uint8_t linebuf[MAX_LINE_LENGTH_BYTES + 1] >>>> + __attribute__((__aligned__(sizeof(uint32_t)))); >>> >>> __aligned(sizeof(uint32_t)) >> >> I based the __aligned__ on what's in post/cpu/ppc4xx/cache.c. What is the >> difference between __aligned and __aligned__? > > i dont mean "__attribute__((__aligned(sizeof(uint32_t))))", i mean > "__aligned(sizeof(uint32_t))". the linux compiler headers take care > of expanding it to an attribute. > -mike The __aligned(...) syntax fails to compile with the ELDK 4.2 arm toolchain. Amicalement, -- Albert.