From: Dmitry V. Levin <ldv@altlinux.org>
Date: Sun, 25 Dec 2016 22:17:38 +0000 (+0000)
Subject: clone: print clone flags without truncation
X-Git-Tag: v4.16~170
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=276839aec610434ea355bd5920f8654b95f2f454;p=strace

clone: print clone flags without truncation

The flags argument is defined in kernel as unsigned long,
so change its decoding to avoid truncation.

* clone.c (SYS_FUNC(clone)): Change flags type from unsigned long
to kernel_ureg_t, print it using printflags64 instead of printflags.
---

diff --git a/clone.c b/clone.c
index 3bc1e22e..81b1ba0d 100644
--- a/clone.c
+++ b/clone.c
@@ -98,7 +98,7 @@ SYS_FUNC(clone)
 {
 	if (exiting(tcp)) {
 		const char *sep = "|";
-		unsigned long flags = tcp->u_arg[ARG_FLAGS];
+		kernel_ureg_t flags = tcp->u_arg[ARG_FLAGS];
 		tprints("child_stack=");
 		printaddr(tcp->u_arg[ARG_STACK]);
 		tprints(", ");
@@ -108,7 +108,7 @@ SYS_FUNC(clone)
 				tcp->u_arg[ARG_STACKSIZE]);
 #endif
 		tprints("flags=");
-		if (!printflags(clone_flags, flags &~ CSIGNAL, NULL))
+		if (!printflags64(clone_flags, flags &~ CSIGNAL, NULL))
 			sep = "";
 		if ((flags & CSIGNAL) != 0)
 			tprintf("%s%s", sep, signame(flags & CSIGNAL));