From db6b51ada724d76d2d8a4b80dfbc20235fcdb0e7 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 2 Apr 2002 04:43:06 +0000 Subject: * hurd/hurdselect.c (_hurd_select): Fix MACH_MSG_TYPE_INTEGER_T -> integer_t in sizeof. Use a union rather than casts to compare mach_msg_type_t as int. 2002-03-25 Roland McGrath * hurd/hurdchdir.c (_hurd_change_directory_port_from_name): Don't check off the end of NAME when it's shorter than 2 chars. Reported by Ognyan Kulev . 2002-03-17 Roland McGrath * sysdeps/mach/hurd/i386/sys/io.h: New file. * sysdeps/mach/hurd/i386/ioperm.c: New file. * sysdeps/mach/hurd/i386/Dist: Add them. * sysdeps/mach/hurd/i386/Versions (libc: GLIBC_2.2.6): New set, add ioperm. * sysdeps/mach/configure.in: New check to set HAVE_I386_IO_PERM_MODIFY. (mach_interface_list): Check for mach_i386.defs. * config.h.in (HAVE_I386_IO_PERM_MODIFY): #undef it. * sysdeps/mach/configure: Regenerated. --- sysdeps/mach/hurd/i386/ioperm.c | 51 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 sysdeps/mach/hurd/i386/ioperm.c (limited to 'sysdeps/mach/hurd/i386/ioperm.c') diff --git a/sysdeps/mach/hurd/i386/ioperm.c b/sysdeps/mach/hurd/i386/ioperm.c new file mode 100644 index 0000000000..4a3cd77164 --- /dev/null +++ b/sysdeps/mach/hurd/i386/ioperm.c @@ -0,0 +1,51 @@ +/* Access to hardware i/o ports. Hurd/x86 version. + Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include +#include + +int +ioperm (unsigned long int from, unsigned long int num, int turn_on) +{ +#if ! HAVE_I386_IO_PERM_MODIFY + return __hurd_fail (ENOSYS); +#else + error_t err; + device_t devmaster; + + /* With the device master port we get a capability that represents + this range of io ports. */ + err = __get_privileged_ports (NULL, &devmaster); + if (! err) + { + io_perm_t perm; + err = __i386_io_perm_create (devmaster, from, from + num, &perm); + __mach_port_deallocate (__mach_task_self (), devmaster); + if (! err) + { + /* Now we add or remove that set from our task's bitmap. */ + err = __i386_io_perm_modify (__mach_task_self (), perm, turn_on); + __mach_port_deallocate (__mach_task_self (), perm); + } + } + + return err ? __hurd_fail (err) : 0; +#endif +} -- cgit 1.4.1