Toon, I assume the final compiler built this way has ubsan? I ask because I'm trying to spot a bug in a new optimization so I want to run it on a specific test case with the new optimization enabled.
Thanks, Gary ________________________________ From: Toon Moene <t...@moene.org> Sent: Monday, September 27, 2021 11:47 PM To: Erick Ochoa <eoc...@gcc.gnu.org>; Gary Oblock <g...@amperecomputing.com> Cc: gcc@gcc.gnu.org <gcc@gcc.gnu.org> Subject: Re: Can gcc itself be tested with ubsan? If so, how? [EXTERNAL EMAIL NOTICE: This email originated from an external sender. Please be mindful of safe email handling and proprietary information protection practices.] On 9/28/21 8:35 AM, Erick Ochoa via Gcc wrote: >> Can ubsan be used on the compiler itself? I regularly build the compiler(s) natively with ubsan enabled, see for instance: https://gcc.gnu.org/pipermail/gcc-testresults/2021-September/719448.html The configure line tells you how to do it (towards the end of the mail): configure flags: --prefix=/home/toon/compilers/install/gcc --with-gnu-as --with-gnu-ld --enable-languages=all,ada --disable-multilib --disable-nls --with-build-config=bootstrap-ubsan --enable-checking=all (the enable-checking part is not relevant, and can be omitted). Kind regards, -- Toon Moene - e-mail: t...@moene.org - phone: +31 346 214290 Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
