Re: [Evolution] [RFH] Using the memory error detector AddressSanitizer (ASan)

[Reid Thompson <Reid Thompson ateb com>]

On Wed, 2015-05-13 at 08:36 +0200, Paul Menzel wrote:
> Am Montag, den 11.05.2015, 12:54 +0000 schrieb Reid Thompson:
> > On Mon, 2015-05-11 at 12:43 +0000, Reid Thompson wrote:
> > > On Sat, 2015-05-09 at 16:08 +0200, Paul Menzel wrote:
> > > > Am Dienstag, den 05.05.2015, 13:11 +0000 schrieb Reid Thompson:
> > > > > On Tue, 2015-05-05 at 07:55 +0200, Paul Menzel wrote:
> > > > > > Am Samstag, den 02.05.2015, 11:58 +0000 schrieb Joakim Tjernlund:
> > > > > > > You need to set LDFLAGS too
> > > > > >
> > > > > > Unfortunately it still fails to build when passing
> > > > > > `LDFLAGS='-fsanitize=address'`.
> > > > >
> > > > > what is your complete build command and the error output
> > > >
> > > >         /bin/sh ../libtool  --tag=CC   --mode=link gcc ...
> > >
> > > from the brief looking that I did, building as you want requires the
> > > compilation to be done with clang -- correct???   not gcc ??? 
> >
> > ok - i see both:
> > AddressSanitizer is a part of LLVM starting with version 3.1 and a part
> > of GCC starting with version 4.8
> >
> > and
> >
> > In order to use AddressSanitizer you will need to compile and link
> > your program using clang with the -fsanitize=address switch.
> >
> > on https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer
>
> The information is outdated as you found out. Current GCC supports ASan
> too.
>
> > i have 
> > gcc version 4.8.4 (Gentoo 4.8.4 p1.4, pie-0.6.1)
> >
> > and  the below works for me.
> >
> > % cat tests/use-after-free.c
> > #include <stdlib.h>
> > int main() {
> >   char *x = (char*)malloc(10 * sizeof(char*));
> >   free(x);
> >   return x[5];
> > }
> >
> > gcc  -fsanitize=address -O1 -fno-omit-frame-pointer -g tests/use-after-free.c
> >
> > this also works for me
> >
> > clang -fsanitize=address -O1 -fno-omit-frame-pointer -g   tests/use-after-free.c
>
> Yes, that works for me too. The problem seems to be with Evolution’s
> build system.
>
>
> Thanks,
>
> Paul

add linking to asan to your compile command

-lasan

that seems to work for my environment

reid