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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[safe/jmp/linux-2.6] / kernel / trace / trace.h
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 7fa33ca..d1ce0be 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -34,7 +34,6 @@ enum trace_type {
        TRACE_GRAPH_RET,
        TRACE_GRAPH_ENT,
        TRACE_USER_STACK,
-       TRACE_HW_BRANCHES,
        TRACE_KMEM_ALLOC,
        TRACE_KMEM_FREE,
        TRACE_BLK,
@@ -103,29 +102,17 @@ struct syscall_trace_exit {
        long                    ret;
 };
 
-struct kprobe_trace_entry {
+struct kprobe_trace_entry_head {
        struct trace_entry      ent;
        unsigned long           ip;
-       int                     nargs;
-       unsigned long           args[];
 };
 
-#define SIZEOF_KPROBE_TRACE_ENTRY(n)                   \
-       (offsetof(struct kprobe_trace_entry, args) +    \
-       (sizeof(unsigned long) * (n)))
-
-struct kretprobe_trace_entry {
+struct kretprobe_trace_entry_head {
        struct trace_entry      ent;
        unsigned long           func;
        unsigned long           ret_ip;
-       int                     nargs;
-       unsigned long           args[];
 };
 
-#define SIZEOF_KRETPROBE_TRACE_ENTRY(n)                        \
-       (offsetof(struct kretprobe_trace_entry, args) + \
-       (sizeof(unsigned long) * (n)))
-
 /*
  * trace_flag_type is an enumeration that holds different
  * states when a trace occurs. These are:
@@ -229,7 +216,6 @@ extern void __ftrace_bad_type(void);
                          TRACE_GRAPH_ENT);             \
                IF_ASSIGN(var, ent, struct ftrace_graph_ret_entry,      \
                          TRACE_GRAPH_RET);             \
-               IF_ASSIGN(var, ent, struct hw_branch_entry, TRACE_HW_BRANCHES);\
                IF_ASSIGN(var, ent, struct kmemtrace_alloc_entry,       \
                          TRACE_KMEM_ALLOC);    \
                IF_ASSIGN(var, ent, struct kmemtrace_free_entry,        \
@@ -378,6 +364,9 @@ void trace_function(struct trace_array *tr,
                    unsigned long ip,
                    unsigned long parent_ip,
                    unsigned long flags, int pc);
+void trace_default_header(struct seq_file *m);
+void print_trace_header(struct seq_file *m, struct trace_iterator *iter);
+int trace_empty(struct trace_iterator *iter);
 
 void trace_graph_return(struct ftrace_graph_ret *trace);
 int trace_graph_entry(struct ftrace_graph_ent *trace);
@@ -396,9 +385,10 @@ extern int process_new_ksym_entry(char *ksymname, int op, unsigned long addr);
 
 extern unsigned long nsecs_to_usecs(unsigned long nsecs);
 
+extern unsigned long tracing_thresh;
+
 #ifdef CONFIG_TRACER_MAX_TRACE
 extern unsigned long tracing_max_latency;
-extern unsigned long tracing_thresh;
 
 void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
 void update_max_tr_single(struct trace_array *tr,
@@ -443,7 +433,7 @@ extern int DYN_FTRACE_TEST_NAME(void);
 
 extern int ring_buffer_expanded;
 extern bool tracing_selftest_disabled;
-DECLARE_PER_CPU(local_t, ftrace_cpu_disabled);
+DECLARE_PER_CPU(int, ftrace_cpu_disabled);
 
 #ifdef CONFIG_FTRACE_STARTUP_TEST
 extern int trace_selftest_startup_function(struct tracer *trace,
@@ -466,8 +456,6 @@ extern int trace_selftest_startup_sysprof(struct tracer *trace,
                                               struct trace_array *tr);
 extern int trace_selftest_startup_branch(struct tracer *trace,
                                         struct trace_array *tr);
-extern int trace_selftest_startup_hw_branches(struct tracer *trace,
-                                             struct trace_array *tr);
 extern int trace_selftest_startup_ksym(struct tracer *trace,
                                         struct trace_array *tr);
 #endif /* CONFIG_FTRACE_STARTUP_TEST */
@@ -490,13 +478,34 @@ extern int trace_clock_id;
 
 /* Standard output formatting function used for function return traces */
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-extern enum print_line_t print_graph_function(struct trace_iterator *iter);
+
+/* Flag options */
+#define TRACE_GRAPH_PRINT_OVERRUN       0x1
+#define TRACE_GRAPH_PRINT_CPU           0x2
+#define TRACE_GRAPH_PRINT_OVERHEAD      0x4
+#define TRACE_GRAPH_PRINT_PROC          0x8
+#define TRACE_GRAPH_PRINT_DURATION      0x10
+#define TRACE_GRAPH_PRINT_ABS_TIME      0x20
+
+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);
 extern enum print_line_t
 trace_print_graph_duration(unsigned long long duration, struct trace_seq *s);
+extern void graph_trace_open(struct trace_iterator *iter);
+extern void graph_trace_close(struct trace_iterator *iter);
+extern int __trace_graph_entry(struct trace_array *tr,
+                              struct ftrace_graph_ent *trace,
+                              unsigned long flags, int pc);
+extern void __trace_graph_return(struct trace_array *tr,
+                                struct ftrace_graph_ret *trace,
+                                unsigned long flags, int pc);
+
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 /* TODO: make this variable */
 #define FTRACE_GRAPH_MAX_FUNCS         32
+extern int ftrace_graph_filter_enabled;
 extern int ftrace_graph_count;
 extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS];
 
@@ -504,7 +513,7 @@ static inline int ftrace_graph_addr(unsigned long addr)
 {
        int i;
 
-       if (!ftrace_graph_count || test_tsk_trace_graph(current))
+       if (!ftrace_graph_filter_enabled)
                return 1;
 
        for (i = 0; i < ftrace_graph_count; i++) {
@@ -522,7 +531,7 @@ static inline int ftrace_graph_addr(unsigned long addr)
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #else /* CONFIG_FUNCTION_GRAPH_TRACER */
 static inline enum print_line_t
-print_graph_function(struct trace_iterator *iter)
+print_graph_function_flags(struct trace_iterator *iter, u32 flags)
 {
        return TRACE_TYPE_UNHANDLED;
 }
@@ -549,7 +558,7 @@ static inline int ftrace_trace_task(struct task_struct *task)
  * struct trace_parser - servers for reading the user input separated by spaces
  * @cont: set if the input is not complete - no final space char was found
  * @buffer: holds the parsed user input
- * @idx: user input lenght
+ * @idx: user input length
  * @size: buffer size
  */
 struct trace_parser {
@@ -597,18 +606,17 @@ enum trace_iterator_flags {
        TRACE_ITER_BIN                  = 0x40,
        TRACE_ITER_BLOCK                = 0x80,
        TRACE_ITER_STACKTRACE           = 0x100,
-       TRACE_ITER_SCHED_TREE           = 0x200,
-       TRACE_ITER_PRINTK               = 0x400,
-       TRACE_ITER_PREEMPTONLY          = 0x800,
-       TRACE_ITER_BRANCH               = 0x1000,
-       TRACE_ITER_ANNOTATE             = 0x2000,
-       TRACE_ITER_USERSTACKTRACE       = 0x4000,
-       TRACE_ITER_SYM_USEROBJ          = 0x8000,
-       TRACE_ITER_PRINTK_MSGONLY       = 0x10000,
-       TRACE_ITER_CONTEXT_INFO         = 0x20000, /* Print pid/cpu/time */
-       TRACE_ITER_LATENCY_FMT          = 0x40000,
-       TRACE_ITER_SLEEP_TIME           = 0x80000,
-       TRACE_ITER_GRAPH_TIME           = 0x100000,
+       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,
 };
 
 /*
@@ -792,7 +800,8 @@ extern const char *__stop___trace_bprintk_fmt[];
 
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(call, struct_name, id, tstruct, print)            \
-       extern struct ftrace_event_call event_##call;
+       extern struct ftrace_event_call                                 \
+       __attribute__((__aligned__(4))) event_##call;
 #undef FTRACE_ENTRY_DUP
 #define FTRACE_ENTRY_DUP(call, struct_name, id, tstruct, print)                \
        FTRACE_ENTRY(call, struct_name, id, PARAMS(tstruct), PARAMS(print))
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