From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Huth Date: Fri, 7 Jun 2019 08:08:38 +0200 Subject: [Buildroot] [PATCH] package/kmsxx: work around gcc bug 85180 In-Reply-To: <20190606131035.47417-1-giulio.benetti@micronovasrl.com> References: <20190606131035.47417-1-giulio.benetti@micronovasrl.com> Message-ID: <20190607080838.46d5065d@thl530.multi.box> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Am Thu, 6 Jun 2019 15:10:35 +0200 schrieb Giulio Benetti : > With Microblaze Gcc version < 8.x the build hangs due to gcc bug > 85180: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85180. The bug > shows up when building kmsxx with optimization but not when building > with -O0. To work around this, if BR2_TOOLCHAIN_HAS_GCC_BUG_85180=y we > force using -O0. According to the description in the bugzilla, the bug should also go away when compiling with -fno-dse ... so wouldn't it be better to use "-fno-dse" here instead of disabling the optimizations completely? Thomas