diff options
| author | Greg Ungerer <gerg@snapgear.com> | 2005-09-01 20:42:52 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-02 03:57:31 -0400 |
| commit | 213b24c93b6c43d96973b9db453bf845c97bbe18 (patch) | |
| tree | d47aea7e40411d997392b1ce12cc82fd02908ec8 | |
| parent | 03a002e783b71517a5203e681f84a2719e9cec0e (diff) | |
[PATCH] uclinux: use MAP_PRIVATE when mmaping code regions in flat binary loader
Use MAP_PRIVATE when calling mmap to get memory for the code region.
The flat loader was using MAP_SHARED, but underlying changes to the
MMUless mmap means this is now wrong.
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | fs/binfmt_flat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index c8998dc66882..7974efa107bc 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c | |||
| @@ -520,7 +520,7 @@ static int load_flat_file(struct linux_binprm * bprm, | |||
| 520 | DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); | 520 | DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); |
| 521 | 521 | ||
| 522 | down_write(¤t->mm->mmap_sem); | 522 | down_write(¤t->mm->mmap_sem); |
| 523 | textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_SHARED, 0); | 523 | textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_PRIVATE, 0); |
| 524 | up_write(¤t->mm->mmap_sem); | 524 | up_write(¤t->mm->mmap_sem); |
| 525 | if (!textpos || textpos >= (unsigned long) -4096) { | 525 | if (!textpos || textpos >= (unsigned long) -4096) { |
| 526 | if (!textpos) | 526 | if (!textpos) |