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From f9344c91a4ca48288bba30dc94a2d712d0659670 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 4 Jul 2012 08:21:15 -0700
Subject: [PATCH] [perl #113980] pp_syscall: "I32 retval" truncates the
returned value
I noticed today that syscall(9, ...) (mmap) doesn't work for me.
The problem is obvious, pp_syscall() uses I32 for retval and the
"long" address doesn't fit into "int".
The one-liner below should fix the problem.
---
pp_sys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pp_sys.c b/pp_sys.c
index fb93732..c5d63ac 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -5456,7 +5456,7 @@ PP(pp_syscall)
register I32 items = SP - MARK;
unsigned long a[20];
register I32 i = 0;
- I32 retval = -1;
+ IV retval = -1;
if (PL_tainting) {
while (++MARK <= SP) {
--
1.7.11.4