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* libio/fileops.c (_IO_file_seekoff_mmap): Don't rely on FP->_offset,

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which gets moved around.  Calculate size of mmap'd buffer instead.
This commit is contained in:
Roland McGrath
2002-07-24 22:54:53 +00:00
parent bb0ec5bdb4
commit 11d657d727
2 changed files with 7 additions and 1 deletions
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ChangeLog
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@@ -1,3 +1,8 @@
2002-07-24 Roland McGrath <roland@frob.com>
* libio/fileops.c (_IO_file_seekoff_mmap): Don't rely on FP->_offset,
which gets moved around. Calculate size of mmap'd buffer instead.
2002-07-24 Philip Blundell <philb@gnu.org>
* sysdeps/unix/arm/brk.S: Improve schedule.

3
libio/fileops.c
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@@ -932,7 +932,8 @@ _IO_file_seekoff_mmap (fp, offset, dir, mode)
using a pushback buffer, but in the usual case has the same value as
(fp->_IO_read_ptr - fp->_IO_buf_base). */
if (mode == 0)
return fp->_offset - (fp->_IO_read_end - fp->_IO_read_ptr);
return ((fp->_IO_buf_end - fp->_IO_buf_base)
- (fp->_IO_read_end - fp->_IO_read_ptr));
switch (dir)
{