From 5f54d8bc48983bed844c02e1fe614ad223e78838 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin (Intel)" Date: Wed, 11 Jun 2025 18:35:35 -0700 Subject: linux/termios/powerpc: deal with powerpc-unique ioctl emulation The powerpc architecture, only, emulates the termios ioctls using the glibc termios structure. Export the real kernel ones as the termios2 interface; although the kernel doesn't call it termios2, it is exactly the termios2 interface, and it avoids the namespace clash between the emulated ioctls and the real kernel ioctls. Signed-off-by: H. Peter Anvin (Intel) Reviewed-by: Adhemerval Zanella --- sysdeps/unix/sysv/linux/powerpc/bits/ioctls.h | 36 +++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/powerpc/bits/ioctls.h (limited to 'sysdeps/unix/sysv/linux') diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/ioctls.h b/sysdeps/unix/sysv/linux/powerpc/bits/ioctls.h new file mode 100644 index 0000000..e1921df --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/bits/ioctls.h @@ -0,0 +1,36 @@ +/* Copyright (C) 1996-2025 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _SYS_IOCTL_H +# error "Never use directly; include instead." +#endif + +/* Use the definitions from the kernel header files. */ +#include + +/* PowerPC quirk: on PowerPC only, ioctl() emulates the TCGETS/TCSETS* + ioctls with tcgetattr/tcsetattr using the glibc struct termios. + As struct termios2 is the same as the kernel struct termios on PowerPC, + simply consider the kernel ones as the termios2 interface, even + though the kernel doesn't call it that. */ + +#define TCGETS2 _IOR ('t', 19, struct termios2) +#define TCSETS2 _IOW ('t', 20, struct termios2) +#define TCSETSW2 _IOW ('t', 21, struct termios2) +#define TCSETSF2 _IOW ('t', 22, struct termios2) + +#include -- cgit v1.1