From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jim Wilson Date: Tue, 13 Apr 2004 07:17:32 +0000 Subject: proposed gcc/gas -mb-step changes Message-Id: <1081840653.1046.64.camel@leaf.tuliptree.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Zack Weinberg of CodeSourcery sent mail to the binutils mailing list which proposes to add a new -mb-step option to the assembler. Currently, gas will always give warnings if given code which triggers an Itanium (Merced) B-step errata. The proposal is to only warn when the new -mb-step option is used. Also, this means that the existing gcc option -mb-step will have to pass -mb-step to the assembler. The discussion is here http://sources.redhat.com/ml/binutils/2004-04/msg00187.html The linux kernel is the only code I know of that uses the gcc -mb-step option. This is used if you configure with B-step support enabled. This change means that the kernel should be modified to add -mb-step to aflags when the B-step support is enabled, just like it currently does for cflags. Gas will fail if given a -m option it doesn't recognize, so this means that these changes will only work with new assembler versions. I am assuming that use of the B-step support is rare enough that this won't be a problem. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com