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

[Paul Menzel <paulepanter users sourceforge net>]

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The information is outdated as you found out.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

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