[PATCH v10 1/4] elf: Add la_activity during application exit

[Florian Weimer]

* Adhemerval Zanella via Libc-alpha:

> diff --git a/elf/dl-fini.c b/elf/dl-fini.c
> index de8eb1b3c9..2705a15c88 100644
> --- a/elf/dl-fini.c
> +++ b/elf/dl-fini.c
> @@ -64,6 +64,11 @@ _dl_fini (void)
>  	__rtld_lock_unlock_recursive (GL(dl_load_lock));
>        else
>  	{
> +#ifdef SHARED
> +	  /* Auditing checkpoint: we will start deleting objects.  */
> +	  _dl_audit_activity_nsid (ns, LA_ACT_DELETE);
> +#endif
> +
>  	  /* Now we can allocate an array to hold all the pointers and
>  	     copy the pointers in.  */
>  	  struct link_map *maps[nloaded];
> @@ -153,6 +158,11 @@ _dl_fini (void)
>  	      /* Correct the previous increment.  */
>  	      --l->l_direct_opencount;
>  	    }
> +
> +#ifdef SHARED
> +	  /* Auditing checkpoint: we will start deleting objects.  */
> +	  _dl_audit_activity_nsid (ns, LA_ACT_CONSISTENT);
> +#endif
>  	}
>      }

The tense in the second comment seems wrong.

>  
> diff --git a/elf/tst-audit23.c b/elf/tst-audit23.c
> new file mode 100644
> index 0000000000..9a7e69c1e1
> --- /dev/null
> +++ b/elf/tst-audit23.c

> +  FILE *out = fmemopen (result.err.buffer, result.err.length, "r");
> +  TEST_VERIFY (out != NULL);
> +  char *buffer = NULL;
> +  size_t buffer_length = 0;
> +  while (xgetline (&buffer, &buffer_length, out))
> +    {
> +      if (startswith (buffer, "la_activity: "))

It may be simpler (or easier to maintain going forward) to have the
expected output (without varying pointers) and compare against that
verbatim.  This is what I implemented for some of the DNS tests.

Thanks,
Florian