Update.

2000-06-29  Ulrich Drepper  <drepper@redhat.com>

	* stdio-common/printf_fp.c (__printf_fp): Don't clobber pointer which
	we later need to calling free().
	Patch by Matt Wilson <msw@redhat.com>.

2000-06-27  David Mosberger-Tang  <davidm@hpl.hp.com>

	* sysdeps/unix/sysv/linux/ia64/bits/ipc.h: New file.
	* sysdeps/unix/sysv/linux/ia64/bits/shm.h: New file.

2000-06-28  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/ieee754/dbl-64/s_exp2.c: Add include stdlib.h to get
	prototype for abs().
	* sysdeps/ieee754/flt-32/s_exp2f.c: ditto.

1 files changed, 211 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/ia64/ioperm.c b/sysdeps/unix/sysv/linux/ia64/ioperm.c
new file mode 100644
index 0000000000..abe8fea4af
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/ioperm.c
@@ -0,0 +1,211 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+     Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+   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.  */
+
+/* I/O access is restricted to ISA port space (ports 0..65535).
+   Modern devices hopefully are sane enough not to put any performance
+   critical registers in i/o space.
+
+   On the first call to ioperm() or iopl(), the entire (E)ISA port
+   space is mapped into the virtual address space at address io.base.
+   mprotect() calls are then used to enable/disable access to ports.
+   Per 4KB page, there are 4 I/O ports.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <asm/page.h>
+#include <asm/system.h>
+
+#define MAX_PORT	0x10000
+
+/*
+ * Memory fence w/accept.  This should never be used in code that is
+ * not IA-64 specific.
+ */
+#define __ia64_mf_a()	__asm__ __volatile__ ("mf.a" ::: "memory")
+
+static struct
+  {
+    unsigned long int base;
+    unsigned long int page_mask;
+  }
+io;
+
+__inline__ unsigned long int
+io_offset (unsigned long int port)
+{
+	return ((port >> 2) << 12) | (port & 0xfff);
+}
+
+int
+_ioperm (unsigned long int from, unsigned long int num, int turn_on)
+{
+  unsigned long int addr, len, base;
+  int prot;
+
+  /* this test isn't as silly as it may look like; consider overflows! */
+  if (from >= MAX_PORT || from + num > MAX_PORT)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  if (turn_on)
+    {
+      if (!io.base)
+	{
+	  unsigned long phys_io_base, len;
+	  int fd;
+
+	  io.page_mask = ~(getpagesize() - 1);
+
+	  /* get I/O base physical address from ar.k0 as per PRM: */
+	  __asm__ ("mov %0=ar.k0" : "=r"(phys_io_base));
+
+	  /* The O_SYNC flag tells the /dev/mem driver to map the
+             memory uncached: */
+	  fd = open ("/dev/mem", O_RDWR | O_SYNC);
+	  if (fd < 0)
+	    return -1;
+
+	  len = io_offset (MAX_PORT);
+#if 1
+	  /* see comment below */
+	  base = (unsigned long int) __mmap (0, len, PROT_READ | PROT_WRITE, MAP_SHARED,
+						fd, phys_io_base);
+#else
+	  base = (unsigned long int) __mmap (0, len, PROT_NONE, MAP_SHARED,
+						fd, phys_io_base);
+#endif
+	  close (fd);
+
+	  if ((long) base == -1)
+	    return -1;
+
+	  io.base = base;
+	}
+      prot = PROT_READ | PROT_WRITE;
+    }
+  else
+    {
+      if (!io.base)
+	return 0;	/* never was turned on... */
+
+      prot = PROT_NONE;
+    }
+#if 0
+  /* We can't do mprotect because that would cause us to lose the
+     uncached flag that the /dev/mem driver turned on.  A MAP_UNCACHED
+     flag seems so much cleaner...  */
+  addr = (io.base + io_offset (from)) & io.page_mask;
+  len  = io.base + io_offset (from + num) - addr;
+  return mprotect ((void *) addr, len, prot);
+#else
+  return 0;
+#endif
+}
+
+int
+_iopl (unsigned int level)
+{
+  if (level > 3)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+  if (level)
+    return _ioperm (0, MAX_PORT, 1);
+  return 0;
+}
+
+unsigned int
+_inb (unsigned long int port)
+{
+  volatile unsigned char *addr = (void *) io.base + io_offset (port);
+  unsigned char ret;
+
+  ret = *addr;
+  __ia64_mf_a();
+  return ret;
+}
+
+unsigned int
+_inw (unsigned long int port)
+{
+  volatile unsigned short *addr = (void *) io.base + io_offset (port);
+  unsigned short ret;
+
+  ret = *addr;
+  __ia64_mf_a();
+  return ret;
+}
+
+unsigned int
+_inl (unsigned long int port)
+{
+  volatile unsigned int *addr = (void *) io.base + io_offset (port);
+  unsigned int ret;
+
+  ret = *addr;
+  __ia64_mf_a();
+  return ret;
+}
+
+void
+_outb (unsigned char val, unsigned long int port)
+{
+  volatile unsigned char *addr = (void *) io.base + io_offset (port);
+
+  *addr = val;
+  __ia64_mf_a();
+}
+
+void
+_outw (unsigned short val, unsigned long int port)
+{
+  volatile unsigned short *addr = (void *) io.base + io_offset (port);
+
+  *addr = val;
+  __ia64_mf_a();
+}
+
+void
+_outl (unsigned int val, unsigned long int port)
+{
+  volatile unsigned int *addr = (void *) io.base + io_offset (port);
+
+  *addr = val;
+  __ia64_mf_a();
+}
+
+weak_alias (_ioperm, ioperm);
+weak_alias (_iopl, iopl);
+weak_alias (_inb, inb);
+weak_alias (_inw, inw);
+weak_alias (_inl, inl);
+weak_alias (_outb, outb);
+weak_alias (_outw, outw);
+weak_alias (_outl, outl);