From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Wed, 21 Sep 2016 21:21:35 +0000 (+0300)
Subject: fadvise: use getarg_ull for obtaining len argument of fadvise64 syscall
X-Git-Tag: v4.14~27
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2c871eb566a08cbb4aee07e48864aeb308528b4b;p=strace

fadvise: use getarg_ull for obtaining len argument of fadvise64 syscall

Since its type is size_t, it is 64-bit wide on x32 and special care
should be taken in order to obtain it.

* fadvise.c (SYS_FUNC(fadvise64)): Use getarg_ull for obtaining value
of "len" syscall argument.
---

diff --git a/fadvise.c b/fadvise.c
index 208f5332..34933f77 100644
--- a/fadvise.c
+++ b/fadvise.c
@@ -42,7 +42,7 @@ SYS_FUNC(fadvise64)
 
 	printfd(tcp, tcp->u_arg[0]);
 	argn = printllval(tcp, ", %lld", 1);
-	tprintf(", %lu, ", tcp->u_arg[argn++]);
+	tprintf(", %llu, ", getarg_ull(tcp, argn++));
 	printxval(advise, tcp->u_arg[argn], "POSIX_FADV_???");
 
 	return RVAL_DECODED;