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authorEric Andersen <andersen@codepoet.org>2004-02-18 08:18:34 +0000
committerEric Andersen <andersen@codepoet.org>2004-02-18 08:18:34 +0000
commitb244adb91931d2ab0ae54d7b5b0fd175382f153d (patch)
tree25ae03d835fd7a384f605bf33e50b23263ed8a53 /libc/sysdeps/linux/frv/mmap.c
parent0648224a317f10cb04cc59974211158b1180c7de (diff)
Fixup naming of '_mmap' to 'mmap' so it will properly override
the symbol in common.
Diffstat (limited to 'libc/sysdeps/linux/frv/mmap.c')
-rw-r--r--libc/sysdeps/linux/frv/mmap.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/frv/mmap.c b/libc/sysdeps/linux/frv/mmap.c
new file mode 100644
index 000000000..b3fd7c3d8
--- /dev/null
+++ b/libc/sysdeps/linux/frv/mmap.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 1997, 1998, 1999, 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
+
+ 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. */
+
+/* Massivly hacked up for uClibc by Erik Andersen */
+
+/* Extracted from ../common/mmap64.c by Alexandre Oliva <aoliva@redhat.com>
+
+ We don't want to use the old mmap interface. */
+
+#include <features.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/mman.h>
+
+#define __NR___syscall_mmap2 __NR_mmap2
+static inline _syscall6(__ptr_t, __syscall_mmap2, __ptr_t, addr,
+ size_t, len, int, prot, int, flags, int, fd, off_t, offset);
+
+/* This is always 12, even on architectures where PAGE_SHIFT != 12. */
+# ifndef MMAP2_PAGE_SHIFT
+# define MMAP2_PAGE_SHIFT 12
+# endif
+
+__ptr_t mmap(__ptr_t addr, size_t len, int prot, int flags, int fd, __off_t offset)
+{
+ if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1)) {
+ __set_errno (EINVAL);
+ return MAP_FAILED;
+ }
+ return(__syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT)));
+}