diff options
Diffstat (limited to 'arch/x86/kernel/time_64.c')
| -rw-r--r-- | arch/x86/kernel/time_64.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c index e3d49c553af..7fd995edb76 100644 --- a/arch/x86/kernel/time_64.c +++ b/arch/x86/kernel/time_64.c @@ -34,11 +34,15 @@ unsigned long profile_pc(struct pt_regs *regs) of flags from PUSHF Eflags always has bits 22 and up cleared unlike kernel addresses. */ if (!user_mode(regs) && in_lock_functions(pc)) { +#ifdef CONFIG_FRAME_POINTER + return *(unsigned long *)(regs->bp + sizeof(long)); +#else unsigned long *sp = (unsigned long *)regs->sp; if (sp[0] >> 22) return sp[0]; if (sp[1] >> 22) return sp[1]; +#endif } return pc; } |