Hi, I wanted to report a minor bug in Linux 2.6 sparc32. The __bzero
function has entries in __ex_table for every store instruction except for one
group at the end. As user pointers can be passed to this function, it
looks like this last group of stores should also have an entry
in __ex_table. I've included a patch adding the __ex_table entry. Please
let me know if you can confirm that this a bug, or need more information.
Best regards,
Mike
diff -BbruN linux-2.6.24.orig/arch/sparc/lib/memset.S
linux-2.6.24/arch/sparc/lib/memset.S
--- linux-2.6.24.orig/arch/sparc/lib/memset.S 2008-01-29 02:24:57.852038000
-0800
+++ linux-2.6.24/arch/sparc/lib/memset.S 2008-01-29 02:34:11.919050000
-0800
@@ -134,6 +134,7 @@
ZERO_LAST_BLOCKS(%o0, 0x48, %g2)
ZERO_LAST_BLOCKS(%o0, 0x08, %g2)
13:
+ EXT(12b, 13b, 20f)
be 8f
andcc %o1, 4, %g0
-
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