2 * Save registers before calling assembly functions. This avoids
3 * disturbance of register allocation in some inline assembly constructs.
4 * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
5 * Added trace_hardirqs callers - Copyright 2007 Steven Rostedt, Red Hat, Inc.
6 * Subject to the GNU public license, v.2. No warranty of any kind.
8 #include <linux/linkage.h>
12 /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
13 .macro THUNK name, func, put_ret_addr_in_rdi=0
15 .type \name, @function
30 .if \put_ret_addr_in_rdi
31 /* 8(%rbp) is return addr on stack */
40 #ifdef CONFIG_TRACE_IRQFLAGS
41 THUNK trace_hardirqs_on_thunk,trace_hardirqs_on_caller,1
42 THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1
45 #ifdef CONFIG_DEBUG_LOCK_ALLOC
46 THUNK lockdep_sys_exit_thunk,lockdep_sys_exit
50 THUNK ___preempt_schedule, preempt_schedule
51 THUNK ___preempt_schedule_notrace, preempt_schedule_notrace
54 #if defined(CONFIG_TRACE_IRQFLAGS) \
55 || defined(CONFIG_DEBUG_LOCK_ALLOC) \
56 || defined(CONFIG_PREEMPT)
69 _ASM_NOKPROBE(.L_restore)