From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] task_struct: stack_canary is not needed without CC_STACKPROTECTOR
Date: Tue, 18 Aug 2009 15:06:02 +0900 [thread overview]
Message-ID: <4A8A44CA.2020701@ct.jp.nec.com> (raw)
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
The field stack_canary is only used with CC_STACKPROTECTOR.
This patch reduces task_struct size without CC_STACKPROTECTOR.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
include/linux/sched.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index af1e328..962e457 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1247,8 +1247,10 @@ struct task_struct {
pid_t pid;
pid_t tgid;
+#ifdef CONFIG_CC_STACKPROTECTOR
/* Canary value for the -fstack-protector gcc feature */
unsigned long stack_canary;
+#endif
/*
* pointers to (original) parent process, youngest child, younger sibling,
--
1.6.3.3
next reply other threads:[~2009-08-18 6:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-18 6:06 Hiroshi Shimamoto [this message]
2009-08-18 7:34 ` [PATCH] task_struct: stack_canary is not needed without CC_STACKPROTECTOR Andi Kleen
2009-08-18 8:01 ` [PATCH v2] " Hiroshi Shimamoto
2009-08-18 13:43 ` Ingo Molnar
2009-08-18 13:48 ` [tip:sched/core] sched, " tip-bot for Hiroshi Shimamoto
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