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-rw-r--r--include/linux/ftrace.h24
-rw-r--r--include/linux/ftrace_event.h3
-rw-r--r--include/linux/kprobes.h2
-rw-r--r--include/linux/trace_seq.h10
-rw-r--r--include/linux/tracepoint.h10
-rw-r--r--include/trace/ftrace.h66
6 files changed, 99 insertions, 16 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 2018751cad9e..404a686a3644 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -62,9 +62,6 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
* set in the flags member.
*
* ENABLED - set/unset when ftrace_ops is registered/unregistered
- * GLOBAL - set manualy by ftrace_ops user to denote the ftrace_ops
- * is part of the global tracers sharing the same filter
- * via set_ftrace_* debugfs files.
* DYNAMIC - set when ftrace_ops is registered to denote dynamically
* allocated ftrace_ops which need special care
* CONTROL - set manualy by ftrace_ops user to denote the ftrace_ops
@@ -96,15 +93,14 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
*/
enum {
FTRACE_OPS_FL_ENABLED = 1 << 0,
- FTRACE_OPS_FL_GLOBAL = 1 << 1,
- FTRACE_OPS_FL_DYNAMIC = 1 << 2,
- FTRACE_OPS_FL_CONTROL = 1 << 3,
- FTRACE_OPS_FL_SAVE_REGS = 1 << 4,
- FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED = 1 << 5,
- FTRACE_OPS_FL_RECURSION_SAFE = 1 << 6,
- FTRACE_OPS_FL_STUB = 1 << 7,
- FTRACE_OPS_FL_INITIALIZED = 1 << 8,
- FTRACE_OPS_FL_DELETED = 1 << 9,
+ FTRACE_OPS_FL_DYNAMIC = 1 << 1,
+ FTRACE_OPS_FL_CONTROL = 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,
};
/*
@@ -366,14 +362,12 @@ enum {
* IGNORE - The function is already what we want it to be
* MAKE_CALL - Start tracing the function
* MODIFY_CALL - Stop saving regs for the function
- * MODIFY_CALL_REGS - Start saving regs for the function
* MAKE_NOP - Stop tracing the function
*/
enum {
FTRACE_UPDATE_IGNORE,
FTRACE_UPDATE_MAKE_CALL,
FTRACE_UPDATE_MODIFY_CALL,
- FTRACE_UPDATE_MODIFY_CALL_REGS,
FTRACE_UPDATE_MAKE_NOP,
};
@@ -404,6 +398,8 @@ int ftrace_update_record(struct dyn_ftrace *rec, int enable);
int ftrace_test_record(struct dyn_ftrace *rec, int enable);
void ftrace_run_stop_machine(int command);
unsigned long ftrace_location(unsigned long ip);
+unsigned long ftrace_get_addr_new(struct dyn_ftrace *rec);
+unsigned long ftrace_get_addr_curr(struct dyn_ftrace *rec);
extern ftrace_func_t ftrace_trace_function;
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index d16da3e53bc7..cff3106ffe2c 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -38,6 +38,9 @@ const char *ftrace_print_symbols_seq_u64(struct trace_seq *p,
*symbol_array);
#endif
+const char *ftrace_print_bitmask_seq(struct trace_seq *p, void *bitmask_ptr,
+ unsigned int bitmask_size);
+
const char *ftrace_print_hex_seq(struct trace_seq *p,
const unsigned char *buf, int len);
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 925eaf28fca9..7bd2ad01e39c 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -355,7 +355,7 @@ static inline void reset_current_kprobe(void)
static inline struct kprobe_ctlblk *get_kprobe_ctlblk(void)
{
- return (&__get_cpu_var(kprobe_ctlblk));
+ return this_cpu_ptr(&kprobe_ctlblk);
}
int register_kprobe(struct kprobe *p);
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index a32d86ec8bf2..136116924d8d 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -46,6 +46,9 @@ extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem,
extern void *trace_seq_reserve(struct trace_seq *s, size_t len);
extern int trace_seq_path(struct trace_seq *s, const struct path *path);
+extern int trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
+ int nmaskbits);
+
#else /* CONFIG_TRACING */
static inline int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
{
@@ -57,6 +60,13 @@ trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary)
return 0;
}
+static inline int
+trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp,
+ int nmaskbits)
+{
+ return 0;
+}
+
static inline int trace_print_seq(struct seq_file *m, struct trace_seq *s)
{
return 0;
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 9d30ee469c2a..2e2a5f7717e5 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -185,6 +185,11 @@ extern void syscall_unregfunc(void);
static inline void \
check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
+ } \
+ static inline bool \
+ trace_##name##_enabled(void) \
+ { \
+ return static_key_false(&__tracepoint_##name.key); \
}
/*
@@ -230,6 +235,11 @@ extern void syscall_unregfunc(void);
} \
static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \
{ \
+ } \
+ static inline bool \
+ trace_##name##_enabled(void) \
+ { \
+ return false; \
}
#define DEFINE_TRACE_FN(name, reg, unreg)
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 0a1a4f7caf09..0fd06fef9fac 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -53,6 +53,9 @@
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)
+
#undef TP_STRUCT__entry
#define TP_STRUCT__entry(args...) args
@@ -128,6 +131,9 @@
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
+
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
struct ftrace_data_offsets_##call { \
@@ -197,9 +203,22 @@
#define __get_dynamic_array(field) \
((void *)__entry + (__entry->__data_loc_##field & 0xffff))
+#undef __get_dynamic_array_len
+#define __get_dynamic_array_len(field) \
+ ((__entry->__data_loc_##field >> 16) & 0xffff)
+
#undef __get_str
#define __get_str(field) (char *)__get_dynamic_array(field)
+#undef __get_bitmask
+#define __get_bitmask(field) \
+ ({ \
+ void *__bitmask = __get_dynamic_array(field); \
+ unsigned int __bitmask_size; \
+ __bitmask_size = __get_dynamic_array_len(field); \
+ ftrace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
+ })
+
#undef __print_flags
#define __print_flags(flag, delim, flag_array...) \
({ \
@@ -322,6 +341,9 @@ static struct trace_event_functions ftrace_event_type_funcs_##call = { \
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
+
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
static int notrace __init \
@@ -372,6 +394,29 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
#define __string(item, src) __dynamic_array(char, item, \
strlen((src) ? (const char *)(src) : "(null)") + 1)
+/*
+ * __bitmask_size_in_bytes_raw is the number of bytes needed to hold
+ * num_possible_cpus().
+ */
+#define __bitmask_size_in_bytes_raw(nr_bits) \
+ (((nr_bits) + 7) / 8)
+
+#define __bitmask_size_in_longs(nr_bits) \
+ ((__bitmask_size_in_bytes_raw(nr_bits) + \
+ ((BITS_PER_LONG / 8) - 1)) / (BITS_PER_LONG / 8))
+
+/*
+ * __bitmask_size_in_bytes is the number of bytes needed to hold
+ * num_possible_cpus() padded out to the nearest long. This is what
+ * is saved in the buffer, just to be consistent.
+ */
+#define __bitmask_size_in_bytes(nr_bits) \
+ (__bitmask_size_in_longs(nr_bits) * (BITS_PER_LONG / 8))
+
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, \
+ __bitmask_size_in_longs(nr_bits))
+
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
static inline notrace int ftrace_get_offsets_##call( \
@@ -513,12 +558,22 @@ static inline notrace int ftrace_get_offsets_##call( \
__entry->__data_loc_##item = __data_offsets.item;
#undef __string
-#define __string(item, src) __dynamic_array(char, item, -1) \
+#define __string(item, src) __dynamic_array(char, item, -1)
#undef __assign_str
#define __assign_str(dst, src) \
strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
+
+#undef __get_bitmask
+#define __get_bitmask(field) (char *)__get_dynamic_array(field)
+
+#undef __assign_bitmask
+#define __assign_bitmask(dst, src, nr_bits) \
+ memcpy(__get_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
+
#undef TP_fast_assign
#define TP_fast_assign(args...) args
@@ -585,7 +640,9 @@ static inline void ftrace_test_probe_##call(void) \
#undef __print_symbolic
#undef __print_hex
#undef __get_dynamic_array
+#undef __get_dynamic_array_len
#undef __get_str
+#undef __get_bitmask
#undef TP_printk
#define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args)
@@ -648,9 +705,16 @@ __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
#define __get_dynamic_array(field) \
((void *)__entry + (__entry->__data_loc_##field & 0xffff))
+#undef __get_dynamic_array_len
+#define __get_dynamic_array_len(field) \
+ ((__entry->__data_loc_##field >> 16) & 0xffff)
+
#undef __get_str
#define __get_str(field) (char *)__get_dynamic_array(field)
+#undef __get_bitmask
+#define __get_bitmask(field) (char *)__get_dynamic_array(field)
+
#undef __perf_addr
#define __perf_addr(a) (__addr = (a))
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 02:07:29 +0300