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Re: [PATCHv2] Add a way to bypass the PLT when calling getauxval
- From: "Tulio Magno Quites Machado Filho" <tuliom at linux dot vnet dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Cc: pc at us dot ibm dot com, joseph at codesourcery dot com
- Cc:
- Date: Fri, 09 Jun 2017 10:13:48 -0300
- Subject: Re: [PATCHv2] Add a way to bypass the PLT when calling getauxval
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1705241951001.9182@digraph.polyomino.org.uk> <1495742765-1722-1-git-send-email-tuliom@linux.vnet.ibm.com>
Ping!
Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> writes:
> 2017-05-25 Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
>
> * include/sys/auxv.h (__getauxval): Add a prototype and its
> libc_hidden_proto.
> * misc/getauxval.c (__getauxval): Use libc_hidden_def.
> ---
> include/sys/auxv.h | 7 +++++++
> misc/getauxval.c | 1 +
> 2 files changed, 8 insertions(+)
>
> diff --git a/include/sys/auxv.h b/include/sys/auxv.h
> index dede2c3..d46008e 100644
> --- a/include/sys/auxv.h
> +++ b/include/sys/auxv.h
> @@ -1 +1,8 @@
> #include <misc/sys/auxv.h>
> +
> +#ifndef _ISOMAC
> +
> +extern __typeof(getauxval) __getauxval;
> +libc_hidden_proto (__getauxval)
> +
> +#endif /* !_ISOMAC */
> diff --git a/misc/getauxval.c b/misc/getauxval.c
> index c83fbce..14f4298 100644
> --- a/misc/getauxval.c
> +++ b/misc/getauxval.c
> @@ -43,3 +43,4 @@ __getauxval (unsigned long int type)
> }
>
> weak_alias (__getauxval, getauxval)
> +libc_hidden_def (__getauxval)
> --
> 2.1.0
>
--
Tulio Magno