cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

ftrace_internal.h (1552B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _LINUX_KERNEL_FTRACE_INTERNAL_H
      3#define  _LINUX_KERNEL_FTRACE_INTERNAL_H
      4
      5#ifdef CONFIG_FUNCTION_TRACER
      6
      7extern struct mutex ftrace_lock;
      8extern struct ftrace_ops global_ops;
      9
     10#ifdef CONFIG_DYNAMIC_FTRACE
     11
     12int ftrace_startup(struct ftrace_ops *ops, int command);
     13int ftrace_shutdown(struct ftrace_ops *ops, int command);
     14int ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs);
     15
     16#else /* !CONFIG_DYNAMIC_FTRACE */
     17
     18int __register_ftrace_function(struct ftrace_ops *ops);
     19int __unregister_ftrace_function(struct ftrace_ops *ops);
     20/* Keep as macros so we do not need to define the commands */
     21# define ftrace_startup(ops, command)					\
     22	({								\
     23		int ___ret = __register_ftrace_function(ops);		\
     24		if (!___ret)						\
     25			(ops)->flags |= FTRACE_OPS_FL_ENABLED;		\
     26		___ret;							\
     27	})
     28# define ftrace_shutdown(ops, command)					\
     29	({								\
     30		int ___ret = __unregister_ftrace_function(ops);		\
     31		if (!___ret)						\
     32			(ops)->flags &= ~FTRACE_OPS_FL_ENABLED;		\
     33		___ret;							\
     34	})
     35static inline int
     36ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs)
     37{
     38	return 1;
     39}
     40#endif /* CONFIG_DYNAMIC_FTRACE */
     41
     42#ifdef CONFIG_FUNCTION_GRAPH_TRACER
     43extern int ftrace_graph_active;
     44void update_function_graph_func(void);
     45#else /* !CONFIG_FUNCTION_GRAPH_TRACER */
     46# define ftrace_graph_active 0
     47static inline void update_function_graph_func(void) { }
     48#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
     49
     50#else /* !CONFIG_FUNCTION_TRACER */
     51#endif /* CONFIG_FUNCTION_TRACER */
     52
     53#endif