[Swan-dev] electric fence and test results

[Andrew Cagney]

To close this:

On 26 March 2018 at 12:35, Andrew Cagney <andrew.cagney at gmail.com> wrote:
> The testsuite's been running with them enabled for a while now so we
> can see the effect.  Antony's addition of a sanitizer means things
> just worked (even turned up a now-fixed bug).  The only problem seems
> to be with the seccomp tests.  Presumably because electric fence wants
> to use new and interesting system calls, for instance:
>
> http://testing.libreswan.org/results/v3.22-1180-gf7c4a39-master/seccomp-02-tolerant/OUTPUT/west.console.diff
>
> +#0  0x00007f7336fee3b7 in madvise () at ../sysdeps/unix/syscall-template.S:81
> +81 T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
> +#0  0x00007f7336fee3b7 in madvise () at ../sysdeps/unix/syscall-template.S:81
> +#1  0x00007f73372b4457 in Page_Delete (address=<optimized out>,
> size=<optimized out>) at page.c:166
>
> If there's an easy way to disable electric fence for just one test
> then please tweak (my simplistic pokeing didn't work).  Else, I guess
> the question becomes should these system calls be added?

I ended up changing pluto so that when USE_EFENCE=true is combined
with SECCOMP, the electric fence system calls are added.