struct module;
struct ftrace_hash;
+#if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_MODULES) && \
+ defined(CONFIG_DYNAMIC_FTRACE)
+const char *
+ftrace_mod_address_lookup(unsigned long addr, unsigned long *size,
+ unsigned long *off, char **modname, char *sym);
+int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name,
+ char *module_name, int *exported);
+#else
+static inline const char *
+ftrace_mod_address_lookup(unsigned long addr, unsigned long *size,
+ unsigned long *off, char **modname, char *sym)
+{
+ return NULL;
+}
+static inline int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name,
+ char *module_name, int *exported)
+{
+ return -1;
+}
+#endif
+
+
#ifdef CONFIG_FUNCTION_TRACER
extern int ftrace_enabled;
* ENABLED - set/unset when ftrace_ops is registered/unregistered
* DYNAMIC - set when ftrace_ops is registered to denote dynamically
* allocated ftrace_ops which need special care
- * PER_CPU - set manualy by ftrace_ops user to denote the ftrace_ops
- * could be controlled by following calls:
- * ftrace_function_local_enable
- * ftrace_function_local_disable
* SAVE_REGS - The ftrace_ops wants regs saved at each function called
* and passed to the callback. If this flag is set, but the
* architecture does not support passing regs
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
FTRACE_OPS_FL_DYNAMIC = 1 << 1,
- FTRACE_OPS_FL_PER_CPU = 1 << 2,
- FTRACE_OPS_FL_SAVE_REGS = 1 << 3,
- FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED = 1 << 4,
- FTRACE_OPS_FL_RECURSION_SAFE = 1 << 5,
- FTRACE_OPS_FL_STUB = 1 << 6,
- FTRACE_OPS_FL_INITIALIZED = 1 << 7,
- FTRACE_OPS_FL_DELETED = 1 << 8,
- FTRACE_OPS_FL_ADDING = 1 << 9,
- FTRACE_OPS_FL_REMOVING = 1 << 10,
- FTRACE_OPS_FL_MODIFYING = 1 << 11,
- FTRACE_OPS_FL_ALLOC_TRAMP = 1 << 12,
- FTRACE_OPS_FL_IPMODIFY = 1 << 13,
- FTRACE_OPS_FL_PID = 1 << 14,
- FTRACE_OPS_FL_RCU = 1 << 15,
- FTRACE_OPS_FL_TRACE_ARRAY = 1 << 16,
+ FTRACE_OPS_FL_SAVE_REGS = 1 << 2,
+ FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED = 1 << 3,
+ FTRACE_OPS_FL_RECURSION_SAFE = 1 << 4,
+ FTRACE_OPS_FL_STUB = 1 << 5,
+ FTRACE_OPS_FL_INITIALIZED = 1 << 6,
+ FTRACE_OPS_FL_DELETED = 1 << 7,
+ FTRACE_OPS_FL_ADDING = 1 << 8,
+ FTRACE_OPS_FL_REMOVING = 1 << 9,
+ FTRACE_OPS_FL_MODIFYING = 1 << 10,
+ FTRACE_OPS_FL_ALLOC_TRAMP = 1 << 11,
+ FTRACE_OPS_FL_IPMODIFY = 1 << 12,
+ FTRACE_OPS_FL_PID = 1 << 13,
+ FTRACE_OPS_FL_RCU = 1 << 14,
+ FTRACE_OPS_FL_TRACE_ARRAY = 1 << 15,
};
#ifdef CONFIG_DYNAMIC_FTRACE
};
void ftrace_free_init_mem(void);
+void ftrace_free_mem(struct module *mod, void *start, void *end);
#else
static inline void ftrace_free_init_mem(void) { }
+static inline void ftrace_free_mem(struct module *mod, void *start, void *end) { }
#endif
/*
unsigned long flags;
void *private;
ftrace_func_t saved_func;
- int __percpu *disabled;
#ifdef CONFIG_DYNAMIC_FTRACE
struct ftrace_ops_hash local_hash;
struct ftrace_ops_hash *func_hash;
int unregister_ftrace_function(struct ftrace_ops *ops);
void clear_ftrace_function(void);
-/**
- * ftrace_function_local_enable - enable ftrace_ops on current cpu
- *
- * This function enables tracing on current cpu by decreasing
- * the per cpu control variable.
- * It must be called with preemption disabled and only on ftrace_ops
- * registered with FTRACE_OPS_FL_PER_CPU. If called without preemption
- * disabled, this_cpu_ptr will complain when CONFIG_DEBUG_PREEMPT is enabled.
- */
-static inline void ftrace_function_local_enable(struct ftrace_ops *ops)
-{
- if (WARN_ON_ONCE(!(ops->flags & FTRACE_OPS_FL_PER_CPU)))
- return;
-
- (*this_cpu_ptr(ops->disabled))--;
-}
-
-/**
- * ftrace_function_local_disable - disable ftrace_ops on current cpu
- *
- * This function disables tracing on current cpu by increasing
- * the per cpu control variable.
- * It must be called with preemption disabled and only on ftrace_ops
- * registered with FTRACE_OPS_FL_PER_CPU. If called without preemption
- * disabled, this_cpu_ptr will complain when CONFIG_DEBUG_PREEMPT is enabled.
- */
-static inline void ftrace_function_local_disable(struct ftrace_ops *ops)
-{
- if (WARN_ON_ONCE(!(ops->flags & FTRACE_OPS_FL_PER_CPU)))
- return;
-
- (*this_cpu_ptr(ops->disabled))++;
-}
-
-/**
- * ftrace_function_local_disabled - returns ftrace_ops disabled value
- * on current cpu
- *
- * This function returns value of ftrace_ops::disabled on current cpu.
- * It must be called with preemption disabled and only on ftrace_ops
- * registered with FTRACE_OPS_FL_PER_CPU. If called without preemption
- * disabled, this_cpu_ptr will complain when CONFIG_DEBUG_PREEMPT is enabled.
- */
-static inline int ftrace_function_local_disabled(struct ftrace_ops *ops)
-{
- WARN_ON_ONCE(!(ops->flags & FTRACE_OPS_FL_PER_CPU));
- return *this_cpu_ptr(ops->disabled);
-}
-
extern void ftrace_stub(unsigned long a0, unsigned long a1,
struct ftrace_ops *op, struct pt_regs *regs);
static inline void clear_ftrace_function(void) { }
static inline void ftrace_kill(void) { }
static inline void ftrace_free_init_mem(void) { }
+static inline void ftrace_free_mem(struct module *mod, void *start, void *end) { }
#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_STACK_TRACER
static inline void time_hardirqs_off(unsigned long a0, unsigned long a1) { }
#endif
-#ifdef CONFIG_PREEMPT_TRACER
+#if defined(CONFIG_PREEMPT_TRACER) || \
+ (defined(CONFIG_DEBUG_PREEMPT) && defined(CONFIG_PREEMPTIRQ_EVENTS))
extern void trace_preempt_on(unsigned long a0, unsigned long a1);
extern void trace_preempt_off(unsigned long a0, unsigned long a1);
#else
git.samba.org / sfrench / cifs-2.6.git / blobdiff