tstruct \
}
-#undef TP_ARGS
-#define TP_ARGS(args...) args
-
#undef FTRACE_ENTRY_DUP
#define FTRACE_ENTRY_DUP(name, name_struct, id, tstruct, printk, filter)
pid_t pid;
kuid_t uid;
char comm[TASK_COMM_LEN];
+
+ bool ignore_pid;
};
struct tracer;
+struct trace_option_dentry;
struct trace_buffer {
struct trace_array *tr;
int cpu;
};
+#define TRACE_FLAGS_MAX_SIZE 32
+
+struct trace_options {
+ struct tracer *tracer;
+ struct trace_option_dentry *topts;
+};
+
+struct trace_pid_list {
+ unsigned int nr_pids;
+ int order;
+ pid_t *pids;
+};
+
/*
* The trace array - an array of per-CPU trace arrays. This is the
* highest level data structure that individual tracers deal with.
bool allocated_snapshot;
unsigned long max_latency;
#endif
+ struct trace_pid_list __rcu *filtered_pids;
/*
* max_lock is used to protect the swapping of buffers
* when taking a max snapshot. The buffers themselves are
#endif
int stop_count;
int clock_id;
+ int nr_topts;
struct tracer *current_trace;
+ unsigned int trace_flags;
+ unsigned char trace_flags_index[TRACE_FLAGS_MAX_SIZE];
unsigned int flags;
raw_spinlock_t start_lock;
struct dentry *dir;
struct dentry *options;
struct dentry *percpu_dir;
struct dentry *event_dir;
+ struct trace_options *topts;
struct list_head systems;
struct list_head events;
cpumask_var_t tracing_cpumask; /* only trace on set CPUs */
#define TRACER_OPT(s, b) .name = #s, .bit = b
+struct trace_option_dentry {
+ struct tracer_opt *opt;
+ struct tracer_flags *flags;
+ struct trace_array *tr;
+ struct dentry *entry;
+};
+
/**
* struct tracer - a specific tracer and its callbacks to interact with tracefs
* @name: the name chosen to select it on the available_tracers file
#endif /* CONFIG_TRACER_MAX_TRACE */
#ifdef CONFIG_STACKTRACE
-void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags,
- int skip, int pc);
-
-void ftrace_trace_stack_regs(struct ring_buffer *buffer, unsigned long flags,
- int skip, int pc, struct pt_regs *regs);
-
void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags,
int pc);
void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
int pc);
#else
-static inline void ftrace_trace_stack(struct ring_buffer *buffer,
- unsigned long flags, int skip, int pc)
-{
-}
-
-static inline void ftrace_trace_stack_regs(struct ring_buffer *buffer,
- unsigned long flags, int skip,
- int pc, struct pt_regs *regs)
-{
-}
-
static inline void ftrace_trace_userstack(struct ring_buffer *buffer,
unsigned long flags, int pc)
{
void trace_printk_seq(struct trace_seq *s);
enum print_line_t print_trace_line(struct trace_iterator *iter);
-extern unsigned long trace_flags;
-
extern char trace_find_mark(unsigned long long duration);
/* Standard output formatting function used for function return traces */
#define TRACE_GRAPH_PRINT_ABS_TIME 0x20
#define TRACE_GRAPH_PRINT_IRQS 0x40
#define TRACE_GRAPH_PRINT_TAIL 0x80
+#define TRACE_GRAPH_SLEEP_TIME 0x100
+#define TRACE_GRAPH_GRAPH_TIME 0x200
#define TRACE_GRAPH_PRINT_FILL_SHIFT 28
#define TRACE_GRAPH_PRINT_FILL_MASK (0x3 << TRACE_GRAPH_PRINT_FILL_SHIFT)
+extern void ftrace_graph_sleep_time_control(bool enable);
+extern void ftrace_graph_graph_time_control(bool enable);
+
extern enum print_line_t
print_graph_function_flags(struct trace_iterator *iter, u32 flags);
extern void print_graph_headers_flags(struct seq_file *s, u32 flags);
#define ftrace_destroy_filter_files(ops) do { } while (0)
#endif /* CONFIG_FUNCTION_TRACER && CONFIG_DYNAMIC_FTRACE */
-int ftrace_event_is_function(struct trace_event_call *call);
+bool ftrace_event_is_function(struct trace_event_call *call);
/*
* struct trace_parser - servers for reading the user input separated by spaces
extern int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
size_t cnt, loff_t *ppos);
+/*
+ * Only create function graph options if function graph is configured.
+ */
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+# define FGRAPH_FLAGS \
+ C(DISPLAY_GRAPH, "display-graph"),
+#else
+# define FGRAPH_FLAGS
+#endif
+
+#ifdef CONFIG_BRANCH_TRACER
+# define BRANCH_FLAGS \
+ C(BRANCH, "branch"),
+#else
+# define BRANCH_FLAGS
+#endif
+
+#ifdef CONFIG_FUNCTION_TRACER
+# define FUNCTION_FLAGS \
+ C(FUNCTION, "function-trace"),
+# define FUNCTION_DEFAULT_FLAGS TRACE_ITER_FUNCTION
+#else
+# define FUNCTION_FLAGS
+# define FUNCTION_DEFAULT_FLAGS 0UL
+#endif
+
+#ifdef CONFIG_STACKTRACE
+# define STACK_FLAGS \
+ C(STACKTRACE, "stacktrace"),
+#else
+# define STACK_FLAGS
+#endif
+
/*
* trace_iterator_flags is an enumeration that defines bit
* positions into trace_flags that controls the output.
*
* NOTE: These bits must match the trace_options array in
- * trace.c.
+ * trace.c (this macro guarantees it).
+ */
+#define TRACE_FLAGS \
+ C(PRINT_PARENT, "print-parent"), \
+ C(SYM_OFFSET, "sym-offset"), \
+ C(SYM_ADDR, "sym-addr"), \
+ C(VERBOSE, "verbose"), \
+ C(RAW, "raw"), \
+ C(HEX, "hex"), \
+ C(BIN, "bin"), \
+ C(BLOCK, "block"), \
+ C(PRINTK, "trace_printk"), \
+ C(ANNOTATE, "annotate"), \
+ C(USERSTACKTRACE, "userstacktrace"), \
+ C(SYM_USEROBJ, "sym-userobj"), \
+ C(PRINTK_MSGONLY, "printk-msg-only"), \
+ C(CONTEXT_INFO, "context-info"), /* Print pid/cpu/time */ \
+ C(LATENCY_FMT, "latency-format"), \
+ C(RECORD_CMD, "record-cmd"), \
+ C(OVERWRITE, "overwrite"), \
+ C(STOP_ON_FREE, "disable_on_free"), \
+ C(IRQ_INFO, "irq-info"), \
+ C(MARKERS, "markers"), \
+ FUNCTION_FLAGS \
+ FGRAPH_FLAGS \
+ STACK_FLAGS \
+ BRANCH_FLAGS
+
+/*
+ * By defining C, we can make TRACE_FLAGS a list of bit names
+ * that will define the bits for the flag masks.
*/
-enum trace_iterator_flags {
- TRACE_ITER_PRINT_PARENT = 0x01,
- TRACE_ITER_SYM_OFFSET = 0x02,
- TRACE_ITER_SYM_ADDR = 0x04,
- TRACE_ITER_VERBOSE = 0x08,
- TRACE_ITER_RAW = 0x10,
- TRACE_ITER_HEX = 0x20,
- TRACE_ITER_BIN = 0x40,
- TRACE_ITER_BLOCK = 0x80,
- TRACE_ITER_STACKTRACE = 0x100,
- TRACE_ITER_PRINTK = 0x200,
- TRACE_ITER_PREEMPTONLY = 0x400,
- TRACE_ITER_BRANCH = 0x800,
- TRACE_ITER_ANNOTATE = 0x1000,
- TRACE_ITER_USERSTACKTRACE = 0x2000,
- TRACE_ITER_SYM_USEROBJ = 0x4000,
- TRACE_ITER_PRINTK_MSGONLY = 0x8000,
- TRACE_ITER_CONTEXT_INFO = 0x10000, /* Print pid/cpu/time */
- TRACE_ITER_LATENCY_FMT = 0x20000,
- TRACE_ITER_SLEEP_TIME = 0x40000,
- TRACE_ITER_GRAPH_TIME = 0x80000,
- TRACE_ITER_RECORD_CMD = 0x100000,
- TRACE_ITER_OVERWRITE = 0x200000,
- TRACE_ITER_STOP_ON_FREE = 0x400000,
- TRACE_ITER_IRQ_INFO = 0x800000,
- TRACE_ITER_MARKERS = 0x1000000,
- TRACE_ITER_FUNCTION = 0x2000000,
+#undef C
+#define C(a, b) TRACE_ITER_##a##_BIT
+
+enum trace_iterator_bits {
+ TRACE_FLAGS
+ /* Make sure we don't go more than we have bits for */
+ TRACE_ITER_LAST_BIT
};
+/*
+ * By redefining C, we can make TRACE_FLAGS a list of masks that
+ * use the bits as defined above.
+ */
+#undef C
+#define C(a, b) TRACE_ITER_##a = (1 << TRACE_ITER_##a##_BIT)
+
+enum trace_iterator_flags { TRACE_FLAGS };
+
/*
* TRACE_ITER_SYM_MASK masks the options in trace_flags that
* control the output of kernel symbols.
extern void disable_branch_tracing(void);
static inline int trace_branch_enable(struct trace_array *tr)
{
- if (trace_flags & TRACE_ITER_BRANCH)
+ if (tr->trace_flags & TRACE_ITER_BRANCH)
return enable_branch_tracing(tr);
return 0;
}
extern const char *__start___tracepoint_str[];
extern const char *__stop___tracepoint_str[];
+void trace_printk_control(bool enabled);
void trace_printk_init_buffers(void);
void trace_printk_start_comm(void);
int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
projects / firefly-linux-kernel-4.4.55.git / blobdiff