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A mmap64 patch


This patch removes the duplication of mmap64.c. You also need

http://sources.redhat.com/ml/libc-hacker/2001-05/msg00070.html

for the MIPS support.


H.J.
---
2001-05-26  H.J. Lu  <hjl@gnu.org>

	* sysdeps/unix/sysv/linux/powerpc/mmap64.c: Moved to ...
	* sysdeps/unix/sysv/linux/mmap64.c: Here.

	* sysdeps/unix/sysv/linux/mmap64.c (PAGE_SHIFT): Define if
	not defined. Check PAGE_SHIFT only if __NR_mmap2 is defined.

	* sysdeps/unix/sysv/linux/hppa/mmap64.c : Removed.
	* sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c: Likewise.

Index: sysdeps/unix/sysv/linux/powerpc/mmap64.c
===================================================================
RCS file: /work/cvs/gnu/glibc/sysdeps/unix/sysv/linux/powerpc/mmap64.c,v
retrieving revision 1.1.1.5
diff -u -p -r1.1.1.5 mmap64.c
--- sysdeps/unix/sysv/linux/powerpc/mmap64.c	2001/05/05 04:06:28	1.1.1.5
+++ sysdeps/unix/sysv/linux/powerpc/mmap64.c	2001/05/27 07:47:55
@@ -1,88 +0,0 @@
-/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
-
-   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 <errno.h>
-#include <unistd.h>
-#include <sys/mman.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-#include <bp-checks.h>
-
-#include "kernel-features.h"
-
-/* This is always the constant 12 for this routine, even if the actual
-   page size is larger.  */
-#define PAGE_SHIFT 12
-
-#ifdef __NR_mmap2
-extern void *__unbounded __syscall_mmap2(void *__unbounded, size_t,
-					 int, int, int, off_t);
-#ifndef __ASSUME_MMAP2_SYSCALL
-static int have_no_mmap2;
-#endif
-#endif
-
-void *
-__mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
-{
-  if (offset & ((1 << PAGE_SHIFT)-1))
-    {
-      __set_errno (EINVAL);
-      return MAP_FAILED;
-    }
-#ifdef __NR_mmap2
-# ifndef __ASSUME_MMAP2_SYSCALL
-  if (! have_no_mmap2)
-# endif
-    {
-# ifndef __ASSUME_MMAP2_SYSCALL
-      int saved_errno = errno;
-# endif
-      void *result;
-      __ptrvalue (result) = INLINE_SYSCALL (mmap2, 6, __ptrvalue (addr), len,
-					    prot, flags, fd,
-					    (off_t) (offset >> PAGE_SHIFT));
-# if __BOUNDED_POINTERS__
-      __ptrlow (result) = __ptrvalue (result);
-      __ptrhigh (result) = __ptrvalue (result) + len;
-# endif
-# ifndef __ASSUME_MMAP2_SYSCALL
-      if (result != MAP_FAILED || errno != ENOSYS)
-# endif
-	return result;
-
-# ifndef __ASSUME_MMAP2_SYSCALL
-      __set_errno (saved_errno);
-      have_no_mmap2 = 1;
-# endif
-    }
-#endif
-#ifndef __ASSUME_MMAP2_SYSCALL
-  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
-}
-
-weak_alias (__mmap64, mmap64)
Index: sysdeps/unix/sysv/linux/mmap64.c
===================================================================
RCS file: /work/cvs/gnu/glibc/sysdeps/unix/sysv/linux/mmap64.c,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 mmap64.c
--- sysdeps/unix/sysv/linux/mmap64.c	2000/05/21 21:11:52	1.1.1.1
+++ sysdeps/unix/sysv/linux/mmap64.c	2001/05/27 07:46:42
@@ -1,6 +1,6 @@
-/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Daniel Jacobowitz <dan@debian.org>, 1999.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
 
    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
@@ -19,21 +19,63 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <sys/mman.h>
 
 #include <sysdep.h>
 #include <sys/syscall.h>
+#include <bp-checks.h>
 
-#include <sys/mman.h>
+#include "kernel-features.h"
+
+#ifdef __NR_mmap2
+#ifndef PAGE_SHIFT
+#define PAGE_SHIFT 12
+#endif
+
+extern void *__unbounded __syscall_mmap2(void *__unbounded, size_t,
+					 int, int, int, off_t);
+#ifndef __ASSUME_MMAP2_SYSCALL
+static int have_no_mmap2;
+#endif
+#endif
 
-__ptr_t
-__mmap64 (addr, len, prot, flags, fd, offset)
-     __ptr_t addr;
-     size_t len;
-     int prot;
-     int flags;
-     int fd;
-     off64_t offset;
+void *
+__mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
 {
+#ifdef __NR_mmap2
+  if (offset & ((1 << PAGE_SHIFT)-1))
+    {
+      __set_errno (EINVAL);
+      return MAP_FAILED;
+    }
+# ifndef __ASSUME_MMAP2_SYSCALL
+  if (! have_no_mmap2)
+# endif
+    {
+# ifndef __ASSUME_MMAP2_SYSCALL
+      int saved_errno = errno;
+# endif
+      void *result;
+      __ptrvalue (result) =
+	(void *__unbounded) INLINE_SYSCALL (mmap2, 6, __ptrvalue (addr),
+					    len, prot, flags, fd,
+					    (off_t) (offset >> PAGE_SHIFT));
+# if __BOUNDED_POINTERS__
+      __ptrlow (result) = __ptrvalue (result);
+      __ptrhigh (result) = __ptrvalue (result) + len;
+# endif
+# ifndef __ASSUME_MMAP2_SYSCALL
+      if (result != MAP_FAILED || errno != ENOSYS)
+# endif
+	return result;
+
+# ifndef __ASSUME_MMAP2_SYSCALL
+      __set_errno (saved_errno);
+      have_no_mmap2 = 1;
+# endif
+    }
+#endif
+#ifndef __ASSUME_MMAP2_SYSCALL
   if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
     {
       __set_errno (EINVAL);
@@ -41,6 +83,7 @@ __mmap64 (addr, len, prot, flags, fd, of
     }
 
   return __mmap (addr, len, prot, flags, fd, (off_t) offset);
+#endif
 }
 
 weak_alias (__mmap64, mmap64)
Index: sysdeps/unix/sysv/linux/hppa/mmap64.c
===================================================================
RCS file: /work/cvs/gnu/glibc/sysdeps/unix/sysv/linux/hppa/mmap64.c,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 mmap64.c
--- sysdeps/unix/sysv/linux/hppa/mmap64.c	2001/05/05 04:06:09	1.1.1.1
+++ sysdeps/unix/sysv/linux/hppa/mmap64.c	2001/05/27 07:46:42
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/powerpc/mmap64.c>
Index: sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c
===================================================================
RCS file: /work/cvs/gnu/glibc/sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c,v
retrieving revision 1.1.1.2
diff -u -p -r1.1.1.2 mmap64.c
--- sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c	2000/07/12 18:52:19	1.1.1.2
+++ sysdeps/unix/sysv/linux/sparc/sparc32/mmap64.c	2001/05/27 07:46:57
@@ -1,80 +0,0 @@
-/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
-
-   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 <errno.h>
-#include <unistd.h>
-#include <sys/mman.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-#include <bp-checks.h>
-
-#include "kernel-features.h"
-
-#ifdef __NR_mmap2
-extern void *__unbounded __syscall_mmap2 (void *__unbounded, size_t,
-					  int, int, int, off_t);
-# ifndef __ASSUME_MMAP2_SYSCALL
-static int have_no_mmap2;
-# endif
-#endif
-
-__ptr_t
-__mmap64 (__ptr_t addr, size_t len, int prot, int flags, int fd, off64_t offset)
-{
-#ifdef __NR_mmap2
-  if (
-# ifndef __ASSUME_MMAP2_SYSCALL
-      ! have_no_mmap2 &&
-# endif
-      ! (offset & 4095))
-    {
-# ifndef __ASSUME_MMAP2_SYSCALL
-      int saved_errno = errno;
-# endif
-      /* This will be always 12, no matter what page size is.  */
-      __ptr_t result;
-      __ptrvalue (result) =
-	(void *__unbounded) INLINE_SYSCALL (mmap2, 6, addr, len, prot, flags,
-					    fd, (off_t) (offset >> 12));
-# if __BOUNDED_POINTERS__
-      __ptrlow (result) = __ptrvalue (result);
-      __ptrhigh (result) = __ptrvalue (result) + len;
-# endif
-# ifndef __ASSUME_MMAP2_SYSCALL
-      if (result != (__ptr_t) -1 || errno != ENOSYS)
-# endif
-	return result;
-
-# ifndef __ASSUME_MMAP2_SYSCALL
-      __set_errno (saved_errno);
-      have_no_mmap2 = 1;
-# endif
-    }
-#endif
-  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);
-}
-
-weak_alias (__mmap64, mmap64)


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