Can gcc itself be tested with ubsan? If so, how?

[Toon Moene]

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: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands