From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 15 Oct 2000 03:27:14 +0000 (+0000)
Subject: Linux/HPPA specific mmap implementation.
X-Git-Tag: glibc-2.16-ports-merge^2~2189
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e4dccb0b6a1cf0b07b90830530bf88e589a7d065;p=platform%2Fupstream%2Fglibc.git

Linux/HPPA specific mmap implementation.
---

diff --git a/sysdeps/unix/sysv/linux/hppa/mmap.c b/sysdeps/unix/sysv/linux/hppa/mmap.c
new file mode 100644
index 0000000..333d848
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/mmap.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1994, 1995, 1996, 1997 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 <sys/types.h>
+#include <sys/mman.h>
+#include <errno.h>
+
+/* Map addresses starting near ADDR and extending for LEN bytes.  From
+   OFFSET into the file FD describes according to PROT and FLAGS.  If ADDR
+   is nonzero, it is the desired mapping address.  If the MAP_FIXED bit is
+   set in FLAGS, the mapping will be at ADDR exactly (which must be
+   page-aligned); otherwise the system chooses a convenient nearby address.
+   The return value is the actual mapping address chosen or MAP_FAILED
+   for errors (in which case `errno' is set).  A successful `mmap' call
+   deallocates any previous mapping for the affected region.  */
+
+#include <sysdep.h>
+
+__ptr_t
+__mmap (__ptr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
+{
+	
+	__ptr_t ret;
+
+	ret = INLINE_SYSCALL(mmap, 6, addr, len, prot, flags, fd, offset);
+
+	/* check if it's really a negative number */
+	if(((unsigned long)ret & 0xfffff000) == 0xfffff000)
+		return MAP_FAILED;
+
+	return ret;
+
+}
+
+strong_alias (__mmap, mmap)