Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/* 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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int __register_ftrace_function(struct ftrace_ops *ops);
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int __unregister_ftrace_function(struct ftrace_ops *ops);
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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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int ftrace_startup_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command);
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int ftrace_shutdown_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command);
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#else /* !CONFIG_DYNAMIC_FTRACE */
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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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static inline int ftrace_startup_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command)
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{
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return -EINVAL;
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}
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static inline int ftrace_shutdown_subops(struct ftrace_ops *ops, struct ftrace_ops *subops, int command)
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{
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return -EINVAL;
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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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# ifdef CONFIG_DYNAMIC_FTRACE
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extern void fgraph_update_pid_func(void);
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# else
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static inline void fgraph_update_pid_func(void) {}
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# endif
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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 fgraph_update_pid_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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