commit 644da9b39e477caa80bab69d2847dfcb468f0d33
author John Clarke <johnc@kirriwa.net> Thu Nov 19 10:30:50 2015 +0100
committer Richard Henderson <rth@twiddle.net> Mon Nov 23 13:16:05 2015 +0100
tree 1401efac15b23075c07e5b8c8a0348d3694df499
parent 541abd10a01da56c5f16582cd32d67114ec22a5c

tcg: Fix highwater check

A simple typo in the variable to use when comparing vs the highwater mark.
Reports are that qemu can in fact segfault occasionally due to this mistake.

Signed-off-by: John Clarke <johnc@kirriwa.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>

tcg/tcg.c

diff --git a/tcg/tcg.c b/tcg/tcg.c
index 682af8a..b20ed19 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2443,7 +2443,7 @@
            one operation beginning below the high water mark cannot overrun
            the buffer completely.  Thus we can test for overflow after
            generating code without having to check during generation.  */
-        if (unlikely(s->code_gen_ptr > s->code_gen_highwater)) {
+        if (unlikely((void *)s->code_ptr > s->code_gen_highwater)) {
             return -1;
         }
     }