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Re: [PATCH] Add dynamic linker support for $EXEC_ORIGIN.
- From: Paul Pluzhnikov <ppluzhnikov at google dot com>
- To: Brooks Moses <bmoses at google dot com>
- Cc: libc-alpha at sourceware dot org, "Carlos O'Donnell" <carlos at redhat dot com>
- Date: Mon, 9 Dec 2013 16:25:19 -0800
- Subject: Re: [PATCH] Add dynamic linker support for $EXEC_ORIGIN.
- Authentication-results: sourceware.org; auth=none
- References: <1386634331-21691-1-git-send-email-bmoses at google dot com>
On Mon, Dec 9, 2013 at 4:12 PM, Brooks Moses <bmoses@google.com> wrote:
> +/* Iterate over auxv, find AT_EXECFN if any. */
> +static char *
> +get_at_execfn (ElfW(auxv_t) *auxv)
> +{
> + assert (auxv != NULL);
> +
> + for (; auxv->a_type != AT_NULL; ++auxv)
> + if (auxv->a_type == AT_EXECFN)
> + return (char *) auxv->a_un.a_val;
> +
> + return NULL;
> +}
get_at_execfn can be replaced with getauxval (AT_EXECFN)
(getauxval() didn't exist in 2.15, but is there now).
--
Paul Pluzhnikov