From: Roland McGrath Date: Sun, 28 Apr 2002 20:09:03 +0000 (+0000) Subject: 2002-04-28 Roland McGrath X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36d9a1779fbfd6bc5583c28c3f332d89f42aa7e1;p=thirdparty%2Fglibc.git 2002-04-28 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/hurd/i386/Makefile [$(subdir) = misc] (sysdep_routines): Append ioperm here. (sysdep_headers): Append sys/io.h here. * sysdeps/mach/i386/configure.in: New file. Check to set HAVE_I386_IO_PERM_MODIFY. * config.h.in (HAVE_I386_IO_PERM_MODIFY): #undef it. * sysdeps/mach/i386/configure: New file. * mach/Makefile (user-interfaces): Add i386/mach_i386 to the list. --- diff --git a/config.h.in b/config.h.in index a268e5e7164..af1b010aa91 100644 --- a/config.h.in +++ b/config.h.in @@ -119,6 +119,9 @@ disabling the support as well. */ #undef USE_NONOPTION_FLAGS +/* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available. */ +#undef HAVE_I386_IO_PERM_MODIFY + /* */ diff --git a/mach/Makefile b/mach/Makefile index ef6a6105d63..9b1e06bd6ed 100644 --- a/mach/Makefile +++ b/mach/Makefile @@ -1,4 +1,4 @@ -# Copyright (C) 1991,92,93,94,95,96,97,98,2001 Free Software Foundation, Inc. +# Copyright (C) 1991,92,93,94,95,96,97,98,2001,02 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 @@ -41,7 +41,7 @@ interface-library := libmachuser user-interfaces := $(addprefix mach/,mach_interface mach_port mach_host \ memory_object_user \ memory_object_default \ - exc mach4 \ + exc mach4 i386/mach_i386 \ default_pager default_pager_helper \ )\ $(addprefix device/,device device_request) diff --git a/sysdeps/mach/hurd/i386/Dist b/sysdeps/mach/hurd/i386/Dist index c58180257eb..82c44df00b7 100644 --- a/sysdeps/mach/hurd/i386/Dist +++ b/sysdeps/mach/hurd/i386/Dist @@ -1 +1,3 @@ static-start.S +sys/io.h +ioperm.c diff --git a/sysdeps/mach/hurd/i386/Makefile b/sysdeps/mach/hurd/i386/Makefile index e69de29bb2d..0eef17e8f2c 100644 --- a/sysdeps/mach/hurd/i386/Makefile +++ b/sysdeps/mach/hurd/i386/Makefile @@ -0,0 +1,4 @@ +ifeq ($(subdir),misc) +sysdep_routines += ioperm +sysdep_headers += sys/io.h +endif diff --git a/sysdeps/mach/hurd/i386/Versions b/sysdeps/mach/hurd/i386/Versions index 5731d9e01ec..67e6d94204f 100644 --- a/sysdeps/mach/hurd/i386/Versions +++ b/sysdeps/mach/hurd/i386/Versions @@ -4,4 +4,7 @@ libc { __register_frame; __register_frame_table; __deregister_frame; __frame_state_for; __register_frame_info_table; } + GLIBC_2.2.6 { + ioperm; + } } diff --git a/sysdeps/mach/hurd/i386/ioperm.c b/sysdeps/mach/hurd/i386/ioperm.c new file mode 100644 index 00000000000..39139bc5657 --- /dev/null +++ b/sysdeps/mach/hurd/i386/ioperm.c @@ -0,0 +1,54 @@ +/* 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); + } + + if (err == MIG_BAD_ID) /* Old kernels don't have these RPCs. */ + err = ENOSYS; + } + + return err ? __hurd_fail (err) : 0; +#endif +} diff --git a/sysdeps/mach/hurd/i386/sys/io.h b/sysdeps/mach/hurd/i386/sys/io.h new file mode 100644 index 00000000000..49ac9985a96 --- /dev/null +++ b/sysdeps/mach/hurd/i386/sys/io.h @@ -0,0 +1,178 @@ +/* Access to hardware i/o ports. GNU/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. */ + +#ifndef _SYS_IO_H +#define _SYS_IO_H 1 + +#include + +__BEGIN_DECLS + +/* If TURN_ON is TRUE, request for permission to do direct i/o on the + port numbers in the range [FROM,FROM+NUM-1]. Otherwise, turn I/O + permission off for that range. This call requires root privileges. */ +extern int ioperm (unsigned long int __from, unsigned long int __num, + int __turn_on) __THROW; + +/* Set the I/O privilege level to LEVEL. If LEVEL>3, permission to + access any I/O port is granted. This call requires root + privileges. */ +extern int iopl (int __level) __THROW; + +#if defined __GNUC__ && __GNUC__ >= 2 + +static __inline unsigned char +inb (unsigned short int port) +{ + unsigned char _v; + + __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned char +inb_p (unsigned short int port) +{ + unsigned char _v; + + __asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned short int +inw (unsigned short int port) +{ + unsigned short _v; + + __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned short int +inw_p (unsigned short int port) +{ + unsigned short int _v; + + __asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned int +inl (unsigned short int port) +{ + unsigned int _v; + + __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline unsigned int +inl_p (unsigned short int port) +{ + unsigned int _v; + __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port)); + return _v; +} + +static __inline void +outb (unsigned char value, unsigned short int port) +{ + __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port)); +} + +static __inline void +outb_p (unsigned char value, unsigned short int port) +{ + __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value), + "Nd" (port)); +} + +static __inline void +outw (unsigned short int value, unsigned short int port) +{ + __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port)); + +} + +static __inline void +outw_p (unsigned short int value, unsigned short int port) +{ + __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value), + "Nd" (port)); +} + +static __inline void +outl (unsigned int value, unsigned short int port) +{ + __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port)); +} + +static __inline void +outl_p (unsigned int value, unsigned short int port) +{ + __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value), + "Nd" (port)); +} + +static __inline void +insb (unsigned short int port, void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +static __inline void +insw (unsigned short int port, void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +static __inline void +insl (unsigned short int port, void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +static __inline void +outsb (unsigned short int port, const void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +static __inline void +outsw (unsigned short int port, const void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +static __inline void +outsl (unsigned short int port, const void *addr, unsigned long int count) +{ + __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr), + "=c" (count):"d" (port), "0" (addr), "1" (count)); +} + +#endif /* GNU C */ + +__END_DECLS +#endif /* _SYS_IO_H */ diff --git a/sysdeps/mach/i386/configure b/sysdeps/mach/i386/configure new file mode 100755 index 00000000000..2efe79f2239 --- /dev/null +++ b/sysdeps/mach/i386/configure @@ -0,0 +1,30 @@ + +echo $ac_n "checking for i386_io_perm_modify in mach_i386.defs""... $ac_c" 1>&6 +echo "configure:4: checking for i386_io_perm_modify in mach_i386.defs" >&5 +if eval "test \"`echo '$''{'libc_cv_mach_i386_ioports'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +EOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + egrep "i386_io_perm_modify" >/dev/null 2>&1; then + rm -rf conftest* + libc_cv_mach_i386_ioports=yes +else + rm -rf conftest* + libc_cv_mach_i386_ioports=no +fi +rm -f conftest* + +fi + +echo "$ac_t""$libc_cv_mach_i386_ioports" 1>&6 +if test $libc_cv_mach_i386_ioports = yes; then + cat >> confdefs.h <<\EOF +#define HAVE_I386_IO_PERM_MODIFY 1 +EOF + +fi diff --git a/sysdeps/mach/i386/configure.in b/sysdeps/mach/i386/configure.in new file mode 100644 index 00000000000..f35d2f72612 --- /dev/null +++ b/sysdeps/mach/i386/configure.in @@ -0,0 +1,11 @@ +sinclude(./aclocal.m4)dnl Autoconf lossage. +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. + +AC_CACHE_CHECK(for i386_io_perm_modify in mach_i386.defs, + libc_cv_mach_i386_ioports, [dnl +AC_EGREP_HEADER(i386_io_perm_modify, mach/i386/mach_i386.defs, + libc_cv_mach_i386_ioports=yes, + libc_cv_mach_i386_ioports=no)]) +if test $libc_cv_mach_i386_ioports = yes; then + AC_DEFINE([HAVE_I386_IO_PERM_MODIFY]) +fi