[dpdk-dev] [EXT] Re: [PATCH] mk: add support for UBSAN

[Thomas Monjalon]

15/11/2019 15:46, Harman Kalra:
> On Mon, Nov 11, 2019 at 08:07:00AM +0100, Thomas Monjalon wrote:
> > External Email
> > 
> > ----------------------------------------------------------------------
> > Hi,
> > 
> > Sorry for the very late review.
> > I hope someone else would try it.
> > 
> > I tried this:
> > devtools/test-build.sh -v x86_64-native-linux-clang+shared+UBSAN+SANITIZE_ALL
> > and it triggers some link errors:
> > /usr/bin/ld: rte_kvargs.c:(.text+0xc65): undefined reference to `__ubsan_handle_pointer_overflow'
> Hi,
> 
> Thanks for trying it out. I came across these errors when compiler
> versions doesn't supports UBSAN

If the support is not available, we should print a clear error message,
not random link errors.

> Can you please with latest clang version if issue still persists.

I am using clang 8.