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| author |   Ingo Molnar <mingo@elte.hu> | 2009-03-08 16:48:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-08 16:48:51 +0100 |
| commit | dba58e39ced7af63f2748d12bbb2b4ac83c72391 (patch) | |
| tree | ee15a5e7667b51d0d0f7e8cb39064652f7c84c28 /include/linux/sched.h | |
| parent | tracing: trace_bprintk() cleanups (diff) | |
| parent | x86: implement atomic text_poke() via fixmap (diff) | |
| download | linux-dev-dba58e39ced7af63f2748d12bbb2b4ac83c72391.tar.xz linux-dev-dba58e39ced7af63f2748d12bbb2b4ac83c72391.zip | |
Merge branches 'tracing/doc', 'tracing/ftrace', 'tracing/printk' and 'tracing/textedit' into tracing/core
Diffstat (limited to 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 0237d124089f..5b9424eaa58f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1182,10 +1182,9 @@ 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, * older sibling, respectively. (p->father can be replaced with @@ -2102,6 +2101,19 @@ static inline int object_is_on_stack(void *obj) extern void thread_info_cache_init(void); +#ifdef CONFIG_DEBUG_STACK_USAGE +static inline unsigned long stack_not_used(struct task_struct *p) +{ + unsigned long *n = end_of_stack(p); + + do { /* Skip over canary */ + n++; + } while (!*n); + + return (unsigned long)n - (unsigned long)end_of_stack(p); +} +#endif + /* set thread flags in other task's structures * - see asm/thread_info.h for TIF_xxxx flags available */ |