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53 lines
1.5 KiB
53 lines
1.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_KERNEL_FTRACE_INTERNAL_H |
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#define _LINUX_KERNEL_FTRACE_INTERNAL_H |
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#ifdef CONFIG_FUNCTION_TRACER |
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extern struct mutex ftrace_lock; |
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extern struct ftrace_ops global_ops; |
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#ifdef CONFIG_DYNAMIC_FTRACE |
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int ftrace_startup(struct ftrace_ops *ops, int command); |
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int ftrace_shutdown(struct ftrace_ops *ops, int command); |
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int ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs); |
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#else /* !CONFIG_DYNAMIC_FTRACE */ |
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int __register_ftrace_function(struct ftrace_ops *ops); |
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int __unregister_ftrace_function(struct ftrace_ops *ops); |
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/* Keep as macros so we do not need to define the commands */ |
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# define ftrace_startup(ops, command) \ |
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({ \ |
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int ___ret = __register_ftrace_function(ops); \ |
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if (!___ret) \ |
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(ops)->flags |= FTRACE_OPS_FL_ENABLED; \ |
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___ret; \ |
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}) |
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# define ftrace_shutdown(ops, command) \ |
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({ \ |
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int ___ret = __unregister_ftrace_function(ops); \ |
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if (!___ret) \ |
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(ops)->flags &= ~FTRACE_OPS_FL_ENABLED; \ |
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___ret; \ |
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}) |
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static inline int |
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ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs) |
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{ |
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return 1; |
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} |
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#endif /* CONFIG_DYNAMIC_FTRACE */ |
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#ifdef CONFIG_FUNCTION_GRAPH_TRACER |
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extern int ftrace_graph_active; |
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void update_function_graph_func(void); |
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#else /* !CONFIG_FUNCTION_GRAPH_TRACER */ |
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# define ftrace_graph_active 0 |
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static inline void update_function_graph_func(void) { } |
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#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ |
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#else /* !CONFIG_FUNCTION_TRACER */ |
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#endif /* CONFIG_FUNCTION_TRACER */ |
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#endif
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