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sched, task_struct: stack_canary is not needed without CC_STACKPROTECTOR 

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>
LKML-Reference: <4A8A44CA.2020701@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hiroshi Shimamoto 2009-08-18 15:06:02 +09:00 committed by Ingo Molnar
parent 8e5b59a2d7
commit 1314562a9a
1 changed files with 2 additions and 0 deletions
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2
include/linux/sched.h
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@ -1237,8 +1237,10 @@ 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,