[Bug 3853] MIPS mmap can not access over 4G file

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=3853

--- Comment #11 from Bernhard Reutner-Fischer <aldot at uclibc.org> 2012-04-25 11:35:24 UTC ---
Mike, can you please have a look?

Something like below may be appropriate, but why can't we just use
(off_t)offset>>shift, again?


index 0086496..75b4ebc 100644
--- a/libc/sysdeps/linux/common/mmap64.c
+++ b/libc/sysdeps/linux/common/mmap64.c
@@ -57,7 +57,7 @@ void *mmap64(void *addr, size_t len, int prot, int flags, int
fd, __off64_t offs
      * an unsigned 64-bit value before doing the shift.
      */
     return (void*) INLINE_SYSCALL(mmap2, 6, addr, len, prot, flags, fd,
-                                    ((uint64_t)offset >> MMAP2_PAGE_SHIFT));
+                                    (off_t)((uint64_t)offset >>
MMAP2_PAGE_SHIFT));
 }

 #endif

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