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Re: [PATCH 27/58] Hide internal __ioctl function [BZ #18822]
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: libc-alpha at sourceware dot org
- Date: Sun, 1 Oct 2017 15:31:15 -0700
- Subject: Re: [PATCH 27/58] Hide internal __ioctl function [BZ #18822]
- Authentication-results: sourceware.org; auth=none
- References: <20170901180029.9527-1-hjl.tools@gmail.com> <20170901180029.9527-28-hjl.tools@gmail.com>
On 9/1/17, H.J. Lu <hjl.tools@gmail.com> wrote:
> Hide internal __ioctl function to allow direct access within libc.so and
> libc.a without using GOT nor PLT.
>
> __GI___ioctl is defined when sysdeps/unix/syscalls.list is used to
> generate ioctl. Otherwise libc_hidden_def is needed explicitly.
>
> [BZ #18822]
> * include/sys/ioctl.h (__ioctl): Add libc_hidden_proto.
> * misc/ioctl.c (__ioctl): Add libc_hidden_def.
> * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.
> * sysdeps/unix/sysv/linux/aarch64/ioctl.S (__ioctl): Likewise.
> * sysdeps/unix/sysv/linux/mips/mips64/n64/ioctl.S (__ioctl):
> Likewise.
> * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
> * sysdeps/unix/sysv/linux/tile/tilegx/ioctl.S (__ioctl): Likewise.
Tested with build-many-glibcs.py. I am checking it in.
--
H.J.