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From: David CARLIER <devnexen@gmail.com>
To: libc-alpha@sourceware.org
Subject: [patch] explicit_bzero constraint on the destination buffer
Date: Thu, 28 Jun 2018 16:05:00 -0000	[thread overview]
Message-ID: <CA+XhMqzL0=OhSMRMFjW8R5qpgjBHLuJK5n_ttcFYgpUTJx03uQ@mail.gmail.com> (raw)

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Hi,

This is my first message but here a little patch proposal for
explicit_bzero function.

Hope it s good.

Thanks.

Kind regards.

[-- Attachment #2: 0001-Constraint-on-the-destination-buffer.patch --]
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From d70ed2be70551e962a5ae3f76197012bda9bcd27 Mon Sep 17 00:00:00 2001
From: David Carlier <dcarlier@afilias.info>
Date: Thu, 28 Jun 2018 15:39:59 +0000
Subject: [PATCH] Constraint on the destination buffer

---
 string/explicit_bzero.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/string/explicit_bzero.c b/string/explicit_bzero.c
index 7ba3f0f62c..c26ac38311 100644
--- a/string/explicit_bzero.c
+++ b/string/explicit_bzero.c
@@ -34,5 +34,5 @@ explicit_bzero (void *s, size_t len)
 {
   memset (s, '\0', len);
   /* Compiler barrier.  */
-  asm volatile ("" ::: "memory");
+  asm volatile ("" :: "r"(s)  : "memory");
 }
-- 
2.14.1


             reply	other threads:[~2018-06-28 16:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-28 16:05 David CARLIER [this message]
2018-06-28 17:16 ` Adhemerval Zanella
2018-06-28 18:38   ` David CARLIER
2018-06-28 19:00     ` Adhemerval Zanella

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