From 009bae64cf278be1a49eef73e6756c1fd268da34 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Fri, 21 Dec 2001 10:14:44 +0000 Subject: A very large patch from Miles Bader to bring v850 back into working condition. Thanks Miles! -Erik --- libc/sysdeps/linux/v850/bits/select.h | 69 +++++++++++++++++++++++++---------- 1 file changed, 49 insertions(+), 20 deletions(-) (limited to 'libc/sysdeps/linux/v850/bits/select.h') diff --git a/libc/sysdeps/linux/v850/bits/select.h b/libc/sysdeps/linux/v850/bits/select.h index 4513135af..b6bb05452 100644 --- a/libc/sysdeps/linux/v850/bits/select.h +++ b/libc/sysdeps/linux/v850/bits/select.h @@ -1,35 +1,64 @@ -/* Copyright (C) 1997, 1998 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ +/* + * include/bits/select.h -- fd_set operations + * + * Copyright (C) 2001 NEC Corporation + * Copyright (C) 2001 Miles Bader + * Copyright (C) 1997, 1998 Free Software Foundation, Inc. + * + * This file is subject to the terms and conditions of the GNU Lesser + * General Public License. See the file COPYING.LIB in the main + * directory of this archive for more details. + */ #ifndef _SYS_SELECT_H # error "Never use directly; include instead." #endif +#ifdef __GNUC__ /* We don't use `memset' because this would require a prototype and the array isn't too big. */ -#define __FD_ZERO(s) \ +#define __FD_ZERO(s) \ do { \ unsigned int __i; \ - __fd_set *__arr = (s); \ - for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i) \ + fd_set *__arr = (s); \ + for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \ __FDS_BITS (__arr)[__i] = 0; \ } while (0) + +#define __FD_SET(fd, s) \ + do { \ + int __fd = (fd); \ + void *__addr = (void *)&__FDS_BITS (s); \ + __asm__ __volatile__ ("set1 %0, [%1]" \ + : /*nothing*/ \ + : "r" (__fd & 0x7), "r" (__addr + (__fd >> 3)));\ + } while (0) + +#define __FD_CLR(fd, s) \ + do { \ + int __fd = (fd); \ + void *__addr = (void *)&__FDS_BITS (s); \ + __asm__ __volatile__ ("clr1 %0, [%1]" \ + : /*nothing*/ \ + : "r" (__fd & 0x7), "r" (__addr + (__fd >> 3)));\ + } while (0) + +#define __FD_ISSET(fd, s) \ + ({ \ + int __fd = (fd); \ + void *__addr = (void *)&__FDS_BITS (s); \ + int res; \ + __asm__ ("tst1 %1, [%2]; setf nz, %0" \ + : "=r" (res) \ + : "r" (__fd & 0x7), "r" (__addr + (__fd >> 3))); \ + res; \ + }) + +#else /* !__GNUC__ */ + #define __FD_SET(d, s) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d)) #define __FD_CLR(d, s) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d)) #define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT(d)] & __FDMASK(d)) != 0) + +#endif /* __GNUC__ */ -- cgit v1.2.3