Add support for mmap64

 -Erik

2 files changed, 53 insertions, 1 deletions

diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile
index 3a4b5c92b..62dc66ecc 100644
--- a/libc/sysdeps/linux/common/Makefile
+++ b/libc/sysdeps/linux/common/Makefile
@@ -33,7 +33,7 @@ CSRC=	waitpid.c kernel_version.c statfix.c getdnnm.c gethstnm.c \
 	mkfifo.c setegid.c wait.c getpagesize.c seteuid.c \
 	wait3.c setpgrp.c getdtablesize.c create_module.c ptrace.c \
 	cmsg_nxthdr.c statfix64.c longjmp.c open64.c ftruncate64.c \
-	truncate64.c getrlimit64.c setrlimit64.c creat64.c
+	truncate64.c getrlimit64.c setrlimit64.c creat64.c mmap64.c
 ifneq ($(strip $(EXCLUDE_BRK)),true)
 CSRC+=sbrk.c
 endif
diff --git a/libc/sysdeps/linux/common/mmap64.c b/libc/sysdeps/linux/common/mmap64.c
new file mode 100644
index 000000000..fba0eb6f8
--- /dev/null
+++ b/libc/sysdeps/linux/common/mmap64.c
@@ -0,0 +1,52 @@
+/* Copyright (C) 1997, 1998, 1999 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.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+#include <sys/mman.h>
+
+#if defined __UCLIBC_HAVE_LFS__
+
+#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS != 64 
+#undef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS   64
+#endif
+#ifndef __USE_LARGEFILE64
+# define __USE_LARGEFILE64      1
+#endif
+/* We absolutely do _NOT_ want interfaces silently
+ *  * renamed under us or very bad things will happen... */
+#ifdef __USE_FILE_OFFSET64
+# undef __USE_FILE_OFFSET64
+#endif
+
+#undef	creat
+__ptr_t mmap64(__ptr_t addr, size_t len, int prot, int flags, int fd, off64_t offset)
+{
+    if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
+    {
+	__set_errno (EINVAL);
+	return MAP_FAILED;
+    }
+
+    return mmap (addr, len, prot, flags, fd, (off_t) offset);
+}
+#endif /* __UCLIBC_HAVE_LFS__ */
+