These are the patches to support regset in ia64. The patches are on top
of Petr's ptrace cleanup patches.
http://marc.info/?l=linux-ia64&m=120276611704615&w=2
Writeback regset[0] before access it to make user memory RSE is up to
date. With Petr's patch, we are using access_process_vm to access user
RSE.
Signed-off-by: Shaohua Li <[EMAIL PROTECTED]>
---
fs/binfmt_elf.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux/fs/binfmt_elf.c
===================================================================
--- linux.orig/fs/binfmt_elf.c 2008-02-25 15:19:18.000000000 +0800
+++ linux/fs/binfmt_elf.c 2008-02-25 15:20:23.000000000 +0800
@@ -1431,6 +1431,14 @@ static int fill_thread_core_info(struct
unsigned int i;
/*
+ * If regset 0 has a writeback call, do it now. On register window
+ * machines, this makes sure the user memory backing the register data
+ * is up to date
+ */
+ if (view->regsets[0].writeback)
+ view->regsets[0].writeback(t->task, &view->regsets[0], 1);
+
+ /*
* NT_PRSTATUS is the one special case, because the regset data
* goes into the pr_reg field inside the note contents, rather
* than being the whole note contents. We fill the reset in here.
-
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