Bug#379407: I/O access on GNU/Hurd

[Thomas Schwinge]

Package: pciutils
Version: 2.2.1-2
Tags: patch


Hello!

The attached patch is needed to make the pciutils package usable on
GNU/Hurd systems with the current Debian gnumach kernel packages.


Regards,
 Thomas

2006-01-20  Thomas Schwinge  <[EMAIL PROTECTED]>

        * lib/Makefile [PCI_OS_GNU]: Define _GNU_SOURCE.

        * lib/i386-io-hurd.h: Implement request and release of IO port access
        rights.

diff -ru pciutils-2.2.1.orig/lib/Makefile pciutils-2.2.1/lib/Makefile
--- pciutils-2.2.1.orig/lib/Makefile    2004-08-13 22:29:06.000000000 +0200
+++ pciutils-2.2.1/lib/Makefile 2006-01-20 01:53:05.000000000 +0100
@@ -45,6 +45,10 @@
 PCILIB=libpciutils.a
 endif
 
+ifdef PCI_OS_GNU
+CFLAGS += -D_GNU_SOURCE
+endif
+
 all: $(PCILIB)
 
 $(PCILIB): $(OBJS)
diff -ru pciutils-2.2.1.orig/lib/i386-io-hurd.h 
pciutils-2.2.1/lib/i386-io-hurd.h
--- pciutils-2.2.1.orig/lib/i386-io-hurd.h      2003-12-27 00:04:38.000000000 
+0100
+++ pciutils-2.2.1/lib/i386-io-hurd.h   2006-01-20 02:08:58.000000000 +0100
@@ -3,19 +3,46 @@
  *
  *     Copyright (c) 2003 Marco Gerards <[EMAIL PROTECTED]>
  *     Copyright (c) 2003 Martin Mares <[EMAIL PROTECTED]>
+ *     Copyright (c) 2006 Samuel Thibault <[EMAIL PROTECTED]> and
+ *                        Thomas Schwinge <[EMAIL PROTECTED]>
  *
  *     Can be freely distributed and used under the terms of the GNU GPL.
  */
 
 #include <sys/io.h>
 
+#include <mach/machine/mach_i386.h>
+#include <device/device.h>
+#include <hurd.h>
+
+#include <stdio.h>
+
+static mach_port_t io_port;
+
 static inline int
 intel_setup_io(void)
 {
-  return 1;
+  mach_port_t device;
+
+  if ((errno = get_privileged_ports(NULL, &device)))
+    perror("intel_setup_io() can't get_privileged_ports()");
+
+  if (!errno && (errno = device_open(device, D_READ | D_WRITE, "io", 
&io_port)))
+    perror("intel_setup_io() can't device_open()");
+
+  mach_port_deallocate(mach_task_self(), device);
+
+  if (!errno && (errno = i386_io_port_add(mach_thread_self(), io_port)))
+    perror("intel_setup_io() can't i386_io_port_add()");
+
+  return errno ? 0 : 1;
 }
 
-static inline int
+static inline void
 intel_cleanup_io(void)
 {
+  if ((errno = i386_io_port_remove(mach_thread_self(), io_port)))
+    perror("intel_cleanup_io() can't i386_io_port_remove()");
+
+  mach_port_deallocate(mach_task_self(), io_port);
 }