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Subject[for-next][PATCH 06/12] tracing: Move the defines to create TRACE_EVENTS into their own files
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

In an effort to add custom event macros that can be used to create your
own custom events based on existing tracepoints, move the defines of the
special macros used in TRACE_EVENT() into their own files such that they
can be reused for TRACE_CUSTOM_EVENT().

Link: https://lkml.kernel.org/r/20220303220625.553406495@goodmis.org

Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
include/trace/stages/init.h | 37 ++
include/trace/stages/stage1_defines.h | 45 +++
include/trace/stages/stage2_defines.h | 48 +++
include/trace/stages/stage3_defines.h | 129 +++++++
include/trace/stages/stage4_defines.h | 57 +++
include/trace/stages/stage5_defines.h | 83 +++++
include/trace/stages/stage6_defines.h | 86 +++++
include/trace/stages/stage7_defines.h | 34 ++
include/trace/trace_events.h | 499 +-------------------------
9 files changed, 527 insertions(+), 491 deletions(-)
create mode 100644 include/trace/stages/init.h
create mode 100644 include/trace/stages/stage1_defines.h
create mode 100644 include/trace/stages/stage2_defines.h
create mode 100644 include/trace/stages/stage3_defines.h
create mode 100644 include/trace/stages/stage4_defines.h
create mode 100644 include/trace/stages/stage5_defines.h
create mode 100644 include/trace/stages/stage6_defines.h
create mode 100644 include/trace/stages/stage7_defines.h

diff --git a/include/trace/stages/init.h b/include/trace/stages/init.h
new file mode 100644
index 000000000000..000bcfc8dd2e
--- /dev/null
+++ b/include/trace/stages/init.h
@@ -0,0 +1,37 @@
+
+#define __app__(x, y) str__##x##y
+#define __app(x, y) __app__(x, y)
+
+#define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
+
+#define TRACE_MAKE_SYSTEM_STR() \
+ static const char TRACE_SYSTEM_STRING[] = \
+ __stringify(TRACE_SYSTEM)
+
+TRACE_MAKE_SYSTEM_STR();
+
+#undef TRACE_DEFINE_ENUM
+#define TRACE_DEFINE_ENUM(a) \
+ static struct trace_eval_map __used __initdata \
+ __##TRACE_SYSTEM##_##a = \
+ { \
+ .system = TRACE_SYSTEM_STRING, \
+ .eval_string = #a, \
+ .eval_value = a \
+ }; \
+ static struct trace_eval_map __used \
+ __section("_ftrace_eval_map") \
+ *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
+
+#undef TRACE_DEFINE_SIZEOF
+#define TRACE_DEFINE_SIZEOF(a) \
+ static struct trace_eval_map __used __initdata \
+ __##TRACE_SYSTEM##_##a = \
+ { \
+ .system = TRACE_SYSTEM_STRING, \
+ .eval_string = "sizeof(" #a ")", \
+ .eval_value = sizeof(a) \
+ }; \
+ static struct trace_eval_map __used \
+ __section("_ftrace_eval_map") \
+ *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
diff --git a/include/trace/stages/stage1_defines.h b/include/trace/stages/stage1_defines.h
new file mode 100644
index 000000000000..8ab88c766d2b
--- /dev/null
+++ b/include/trace/stages/stage1_defines.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 1 definitions for creating trace events */
+
+#undef __field
+#define __field(type, item) type item;
+
+#undef __field_ext
+#define __field_ext(type, item, filter_type) type item;
+
+#undef __field_struct
+#define __field_struct(type, item) type item;
+
+#undef __field_struct_ext
+#define __field_struct_ext(type, item, filter_type) type item;
+
+#undef __array
+#define __array(type, item, len) type item[len];
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) u32 __data_loc_##item;
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, -1)
+
+#undef __string_len
+#define __string_len(item, src, len) __dynamic_array(char, item, -1)
+
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)
+
+#undef __rel_dynamic_array
+#define __rel_dynamic_array(type, item, len) u32 __rel_loc_##item;
+
+#undef __rel_string
+#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_string_len
+#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_bitmask
+#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(char, item, -1)
+
+#undef TP_STRUCT__entry
+#define TP_STRUCT__entry(args...) args
diff --git a/include/trace/stages/stage2_defines.h b/include/trace/stages/stage2_defines.h
new file mode 100644
index 000000000000..9f2341df40da
--- /dev/null
+++ b/include/trace/stages/stage2_defines.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 2 definitions for creating trace events */
+
+#undef TRACE_DEFINE_ENUM
+#define TRACE_DEFINE_ENUM(a)
+
+#undef TRACE_DEFINE_SIZEOF
+#define TRACE_DEFINE_SIZEOF(a)
+
+#undef __field
+#define __field(type, item)
+
+#undef __field_ext
+#define __field_ext(type, item, filter_type)
+
+#undef __field_struct
+#define __field_struct(type, item)
+
+#undef __field_struct_ext
+#define __field_struct_ext(type, item, filter_type)
+
+#undef __array
+#define __array(type, item, len)
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) u32 item;
+
+#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 __string_len
+#define __string_len(item, src, len) __dynamic_array(char, item, -1)
+
+#undef __rel_dynamic_array
+#define __rel_dynamic_array(type, item, len) u32 item;
+
+#undef __rel_string
+#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_string_len
+#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_bitmask
+#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
diff --git a/include/trace/stages/stage3_defines.h b/include/trace/stages/stage3_defines.h
new file mode 100644
index 000000000000..0bc131993b7a
--- /dev/null
+++ b/include/trace/stages/stage3_defines.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 3 definitions for creating trace events */
+
+#undef __entry
+#define __entry field
+
+#undef TP_printk
+#define TP_printk(fmt, args...) fmt "\n", args
+
+#undef __get_dynamic_array
+#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_rel_dynamic_array
+#define __get_rel_dynamic_array(field) \
+ ((void *)__entry + \
+ offsetof(typeof(*__entry), __rel_loc_##field) + \
+ sizeof(__entry->__rel_loc_##field) + \
+ (__entry->__rel_loc_##field & 0xffff))
+
+#undef __get_rel_dynamic_array_len
+#define __get_rel_dynamic_array_len(field) \
+ ((__entry->__rel_loc_##field >> 16) & 0xffff)
+
+#undef __get_rel_str
+#define __get_rel_str(field) ((char *)__get_rel_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); \
+ trace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
+ })
+
+#undef __get_rel_bitmask
+#define __get_rel_bitmask(field) \
+ ({ \
+ void *__bitmask = __get_rel_dynamic_array(field); \
+ unsigned int __bitmask_size; \
+ __bitmask_size = __get_rel_dynamic_array_len(field); \
+ trace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
+ })
+
+#undef __print_flags
+#define __print_flags(flag, delim, flag_array...) \
+ ({ \
+ static const struct trace_print_flags __flags[] = \
+ { flag_array, { -1, NULL }}; \
+ trace_print_flags_seq(p, delim, flag, __flags); \
+ })
+
+#undef __print_symbolic
+#define __print_symbolic(value, symbol_array...) \
+ ({ \
+ static const struct trace_print_flags symbols[] = \
+ { symbol_array, { -1, NULL }}; \
+ trace_print_symbols_seq(p, value, symbols); \
+ })
+
+#undef __print_flags_u64
+#undef __print_symbolic_u64
+#if BITS_PER_LONG == 32
+#define __print_flags_u64(flag, delim, flag_array...) \
+ ({ \
+ static const struct trace_print_flags_u64 __flags[] = \
+ { flag_array, { -1, NULL } }; \
+ trace_print_flags_seq_u64(p, delim, flag, __flags); \
+ })
+
+#define __print_symbolic_u64(value, symbol_array...) \
+ ({ \
+ static const struct trace_print_flags_u64 symbols[] = \
+ { symbol_array, { -1, NULL } }; \
+ trace_print_symbols_seq_u64(p, value, symbols); \
+ })
+#else
+#define __print_flags_u64(flag, delim, flag_array...) \
+ __print_flags(flag, delim, flag_array)
+
+#define __print_symbolic_u64(value, symbol_array...) \
+ __print_symbolic(value, symbol_array)
+#endif
+
+#undef __print_hex
+#define __print_hex(buf, buf_len) \
+ trace_print_hex_seq(p, buf, buf_len, false)
+
+#undef __print_hex_str
+#define __print_hex_str(buf, buf_len) \
+ trace_print_hex_seq(p, buf, buf_len, true)
+
+#undef __print_array
+#define __print_array(array, count, el_size) \
+ ({ \
+ BUILD_BUG_ON(el_size != 1 && el_size != 2 && \
+ el_size != 4 && el_size != 8); \
+ trace_print_array_seq(p, array, count, el_size); \
+ })
+
+#undef __print_hex_dump
+#define __print_hex_dump(prefix_str, prefix_type, \
+ rowsize, groupsize, buf, len, ascii) \
+ trace_print_hex_dump_seq(p, prefix_str, prefix_type, \
+ rowsize, groupsize, buf, len, ascii)
+
+#undef __print_ns_to_secs
+#define __print_ns_to_secs(value) \
+ ({ \
+ u64 ____val = (u64)(value); \
+ do_div(____val, NSEC_PER_SEC); \
+ ____val; \
+ })
+
+#undef __print_ns_without_secs
+#define __print_ns_without_secs(value) \
+ ({ \
+ u64 ____val = (u64)(value); \
+ (u32) do_div(____val, NSEC_PER_SEC); \
+ })
diff --git a/include/trace/stages/stage4_defines.h b/include/trace/stages/stage4_defines.h
new file mode 100644
index 000000000000..780a10fa5279
--- /dev/null
+++ b/include/trace/stages/stage4_defines.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 4 definitions for creating trace events */
+
+#undef __field_ext
+#define __field_ext(_type, _item, _filter_type) { \
+ .type = #_type, .name = #_item, \
+ .size = sizeof(_type), .align = __alignof__(_type), \
+ .is_signed = is_signed_type(_type), .filter_type = _filter_type },
+
+#undef __field_struct_ext
+#define __field_struct_ext(_type, _item, _filter_type) { \
+ .type = #_type, .name = #_item, \
+ .size = sizeof(_type), .align = __alignof__(_type), \
+ 0, .filter_type = _filter_type },
+
+#undef __field
+#define __field(type, item) __field_ext(type, item, FILTER_OTHER)
+
+#undef __field_struct
+#define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER)
+
+#undef __array
+#define __array(_type, _item, _len) { \
+ .type = #_type"["__stringify(_len)"]", .name = #_item, \
+ .size = sizeof(_type[_len]), .align = __alignof__(_type), \
+ .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
+
+#undef __dynamic_array
+#define __dynamic_array(_type, _item, _len) { \
+ .type = "__data_loc " #_type "[]", .name = #_item, \
+ .size = 4, .align = 4, \
+ .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, -1)
+
+#undef __string_len
+#define __string_len(item, src, len) __dynamic_array(char, item, -1)
+
+#undef __bitmask
+#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
+
+#undef __rel_dynamic_array
+#define __rel_dynamic_array(_type, _item, _len) { \
+ .type = "__rel_loc " #_type "[]", .name = #_item, \
+ .size = 4, .align = 4, \
+ .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
+
+#undef __rel_string
+#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_string_len
+#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_bitmask
+#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
diff --git a/include/trace/stages/stage5_defines.h b/include/trace/stages/stage5_defines.h
new file mode 100644
index 000000000000..fb15394aae31
--- /dev/null
+++ b/include/trace/stages/stage5_defines.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 5 definitions for creating trace events */
+
+/*
+ * remember the offset of each array from the beginning of the event.
+ */
+
+#undef __entry
+#define __entry entry
+
+#undef __field
+#define __field(type, item)
+
+#undef __field_ext
+#define __field_ext(type, item, filter_type)
+
+#undef __field_struct
+#define __field_struct(type, item)
+
+#undef __field_struct_ext
+#define __field_struct_ext(type, item, filter_type)
+
+#undef __array
+#define __array(type, item, len)
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ __item_length = (len) * sizeof(type); \
+ __data_offsets->item = __data_size + \
+ offsetof(typeof(*entry), __data); \
+ __data_offsets->item |= __item_length << 16; \
+ __data_size += __item_length;
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, \
+ strlen((src) ? (const char *)(src) : "(null)") + 1)
+
+#undef __string_len
+#define __string_len(item, src, len) __dynamic_array(char, item, (len) + 1)
+
+#undef __rel_dynamic_array
+#define __rel_dynamic_array(type, item, len) \
+ __item_length = (len) * sizeof(type); \
+ __data_offsets->item = __data_size + \
+ offsetof(typeof(*entry), __data) - \
+ offsetof(typeof(*entry), __rel_loc_##item) - \
+ sizeof(u32); \
+ __data_offsets->item |= __item_length << 16; \
+ __data_size += __item_length;
+
+#undef __rel_string
+#define __rel_string(item, src) __rel_dynamic_array(char, item, \
+ strlen((src) ? (const char *)(src) : "(null)") + 1)
+
+#undef __rel_string_len
+#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, (len) + 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 __rel_bitmask
+#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, \
+ __bitmask_size_in_longs(nr_bits))
diff --git a/include/trace/stages/stage6_defines.h b/include/trace/stages/stage6_defines.h
new file mode 100644
index 000000000000..b3a1f26026be
--- /dev/null
+++ b/include/trace/stages/stage6_defines.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 6 definitions for creating trace events */
+
+#undef __entry
+#define __entry entry
+
+#undef __field
+#define __field(type, item)
+
+#undef __field_struct
+#define __field_struct(type, item)
+
+#undef __array
+#define __array(type, item, len)
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ __entry->__data_loc_##item = __data_offsets.item;
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, -1)
+
+#undef __string_len
+#define __string_len(item, src, len) __dynamic_array(char, item, -1)
+
+#undef __assign_str
+#define __assign_str(dst, src) \
+ strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
+
+#undef __assign_str_len
+#define __assign_str_len(dst, src, len) \
+ do { \
+ memcpy(__get_str(dst), (src), (len)); \
+ __get_str(dst)[len] = '\0'; \
+ } while(0)
+
+#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 __rel_dynamic_array
+#define __rel_dynamic_array(type, item, len) \
+ __entry->__rel_loc_##item = __data_offsets.item;
+
+#undef __rel_string
+#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
+
+#undef __rel_string_len
+#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
+
+#undef __assign_rel_str
+#define __assign_rel_str(dst, src) \
+ strcpy(__get_rel_str(dst), (src) ? (const char *)(src) : "(null)");
+
+#undef __assign_rel_str_len
+#define __assign_rel_str_len(dst, src, len) \
+ do { \
+ memcpy(__get_rel_str(dst), (src), (len)); \
+ __get_rel_str(dst)[len] = '\0'; \
+ } while (0)
+
+#undef __rel_bitmask
+#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
+
+#undef __get_rel_bitmask
+#define __get_rel_bitmask(field) (char *)__get_rel_dynamic_array(field)
+
+#undef __assign_rel_bitmask
+#define __assign_rel_bitmask(dst, src, nr_bits) \
+ memcpy(__get_rel_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
+
+#undef TP_fast_assign
+#define TP_fast_assign(args...) args
+
+#undef __perf_count
+#define __perf_count(c) (c)
+
+#undef __perf_task
+#define __perf_task(t) (t)
diff --git a/include/trace/stages/stage7_defines.h b/include/trace/stages/stage7_defines.h
new file mode 100644
index 000000000000..d65445328f18
--- /dev/null
+++ b/include/trace/stages/stage7_defines.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Stage 7 definitions for creating trace events */
+
+#undef __entry
+#define __entry REC
+
+#undef __print_flags
+#undef __print_symbolic
+#undef __print_hex
+#undef __print_hex_str
+#undef __get_dynamic_array
+#undef __get_dynamic_array_len
+#undef __get_str
+#undef __get_bitmask
+#undef __get_rel_dynamic_array
+#undef __get_rel_dynamic_array_len
+#undef __get_rel_str
+#undef __get_rel_bitmask
+#undef __print_array
+#undef __print_hex_dump
+
+/*
+ * The below is not executed in the kernel. It is only what is
+ * displayed in the print format for userspace to parse.
+ */
+#undef __print_ns_to_secs
+#define __print_ns_to_secs(val) (val) / 1000000000UL
+
+#undef __print_ns_without_secs
+#define __print_ns_without_secs(val) (val) % 1000000000UL
+
+#undef TP_printk
+#define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args)
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 3d29919045af..8a8cd66cc6d5 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -24,42 +24,7 @@
#define TRACE_SYSTEM_VAR TRACE_SYSTEM
#endif

-#define __app__(x, y) str__##x##y
-#define __app(x, y) __app__(x, y)
-
-#define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
-
-#define TRACE_MAKE_SYSTEM_STR() \
- static const char TRACE_SYSTEM_STRING[] = \
- __stringify(TRACE_SYSTEM)
-
-TRACE_MAKE_SYSTEM_STR();
-
-#undef TRACE_DEFINE_ENUM
-#define TRACE_DEFINE_ENUM(a) \
- static struct trace_eval_map __used __initdata \
- __##TRACE_SYSTEM##_##a = \
- { \
- .system = TRACE_SYSTEM_STRING, \
- .eval_string = #a, \
- .eval_value = a \
- }; \
- static struct trace_eval_map __used \
- __section("_ftrace_eval_map") \
- *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
-
-#undef TRACE_DEFINE_SIZEOF
-#define TRACE_DEFINE_SIZEOF(a) \
- static struct trace_eval_map __used __initdata \
- __##TRACE_SYSTEM##_##a = \
- { \
- .system = TRACE_SYSTEM_STRING, \
- .eval_string = "sizeof(" #a ")", \
- .eval_value = sizeof(a) \
- }; \
- static struct trace_eval_map __used \
- __section("_ftrace_eval_map") \
- *TRACE_SYSTEM##_##a = &__##TRACE_SYSTEM##_##a
+#include "stages/init.h"

/*
* DECLARE_EVENT_CLASS can be used to add a generic function
@@ -80,48 +45,7 @@ TRACE_MAKE_SYSTEM_STR();
PARAMS(print)); \
DEFINE_EVENT(name, name, PARAMS(proto), PARAMS(args));

-
-#undef __field
-#define __field(type, item) type item;
-
-#undef __field_ext
-#define __field_ext(type, item, filter_type) type item;
-
-#undef __field_struct
-#define __field_struct(type, item) type item;
-
-#undef __field_struct_ext
-#define __field_struct_ext(type, item, filter_type) type item;
-
-#undef __array
-#define __array(type, item, len) type item[len];
-
-#undef __dynamic_array
-#define __dynamic_array(type, item, len) u32 __data_loc_##item;
-
-#undef __string
-#define __string(item, src) __dynamic_array(char, item, -1)
-
-#undef __string_len
-#define __string_len(item, src, len) __dynamic_array(char, item, -1)
-
-#undef __bitmask
-#define __bitmask(item, nr_bits) __dynamic_array(char, item, -1)
-
-#undef __rel_dynamic_array
-#define __rel_dynamic_array(type, item, len) u32 __rel_loc_##item;
-
-#undef __rel_string
-#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_string_len
-#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_bitmask
-#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(char, item, -1)
-
-#undef TP_STRUCT__entry
-#define TP_STRUCT__entry(args...) args
+#include "stages/stage1_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \
@@ -185,50 +109,7 @@ TRACE_MAKE_SYSTEM_STR();
* The size of an array is also encoded, in the higher 16 bits of <item>.
*/

-#undef TRACE_DEFINE_ENUM
-#define TRACE_DEFINE_ENUM(a)
-
-#undef TRACE_DEFINE_SIZEOF
-#define TRACE_DEFINE_SIZEOF(a)
-
-#undef __field
-#define __field(type, item)
-
-#undef __field_ext
-#define __field_ext(type, item, filter_type)
-
-#undef __field_struct
-#define __field_struct(type, item)
-
-#undef __field_struct_ext
-#define __field_struct_ext(type, item, filter_type)
-
-#undef __array
-#define __array(type, item, len)
-
-#undef __dynamic_array
-#define __dynamic_array(type, item, len) u32 item;
-
-#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 __string_len
-#define __string_len(item, src, len) __dynamic_array(char, item, -1)
-
-#undef __rel_dynamic_array
-#define __rel_dynamic_array(type, item, len) u32 item;
-
-#undef __rel_string
-#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_string_len
-#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_bitmask
-#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
+#include "stages/stage2_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
@@ -300,131 +181,7 @@ TRACE_MAKE_SYSTEM_STR();
* in binary.
*/

-#undef __entry
-#define __entry field
-
-#undef TP_printk
-#define TP_printk(fmt, args...) fmt "\n", args
-
-#undef __get_dynamic_array
-#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_rel_dynamic_array
-#define __get_rel_dynamic_array(field) \
- ((void *)__entry + \
- offsetof(typeof(*__entry), __rel_loc_##field) + \
- sizeof(__entry->__rel_loc_##field) + \
- (__entry->__rel_loc_##field & 0xffff))
-
-#undef __get_rel_dynamic_array_len
-#define __get_rel_dynamic_array_len(field) \
- ((__entry->__rel_loc_##field >> 16) & 0xffff)
-
-#undef __get_rel_str
-#define __get_rel_str(field) ((char *)__get_rel_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); \
- trace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
- })
-
-#undef __get_rel_bitmask
-#define __get_rel_bitmask(field) \
- ({ \
- void *__bitmask = __get_rel_dynamic_array(field); \
- unsigned int __bitmask_size; \
- __bitmask_size = __get_rel_dynamic_array_len(field); \
- trace_print_bitmask_seq(p, __bitmask, __bitmask_size); \
- })
-
-#undef __print_flags
-#define __print_flags(flag, delim, flag_array...) \
- ({ \
- static const struct trace_print_flags __flags[] = \
- { flag_array, { -1, NULL }}; \
- trace_print_flags_seq(p, delim, flag, __flags); \
- })
-
-#undef __print_symbolic
-#define __print_symbolic(value, symbol_array...) \
- ({ \
- static const struct trace_print_flags symbols[] = \
- { symbol_array, { -1, NULL }}; \
- trace_print_symbols_seq(p, value, symbols); \
- })
-
-#undef __print_flags_u64
-#undef __print_symbolic_u64
-#if BITS_PER_LONG == 32
-#define __print_flags_u64(flag, delim, flag_array...) \
- ({ \
- static const struct trace_print_flags_u64 __flags[] = \
- { flag_array, { -1, NULL } }; \
- trace_print_flags_seq_u64(p, delim, flag, __flags); \
- })
-
-#define __print_symbolic_u64(value, symbol_array...) \
- ({ \
- static const struct trace_print_flags_u64 symbols[] = \
- { symbol_array, { -1, NULL } }; \
- trace_print_symbols_seq_u64(p, value, symbols); \
- })
-#else
-#define __print_flags_u64(flag, delim, flag_array...) \
- __print_flags(flag, delim, flag_array)
-
-#define __print_symbolic_u64(value, symbol_array...) \
- __print_symbolic(value, symbol_array)
-#endif
-
-#undef __print_hex
-#define __print_hex(buf, buf_len) \
- trace_print_hex_seq(p, buf, buf_len, false)
-
-#undef __print_hex_str
-#define __print_hex_str(buf, buf_len) \
- trace_print_hex_seq(p, buf, buf_len, true)
-
-#undef __print_array
-#define __print_array(array, count, el_size) \
- ({ \
- BUILD_BUG_ON(el_size != 1 && el_size != 2 && \
- el_size != 4 && el_size != 8); \
- trace_print_array_seq(p, array, count, el_size); \
- })
-
-#undef __print_hex_dump
-#define __print_hex_dump(prefix_str, prefix_type, \
- rowsize, groupsize, buf, len, ascii) \
- trace_print_hex_dump_seq(p, prefix_str, prefix_type, \
- rowsize, groupsize, buf, len, ascii)
-
-#undef __print_ns_to_secs
-#define __print_ns_to_secs(value) \
- ({ \
- u64 ____val = (u64)(value); \
- do_div(____val, NSEC_PER_SEC); \
- ____val; \
- })
-
-#undef __print_ns_without_secs
-#define __print_ns_without_secs(value) \
- ({ \
- u64 ____val = (u64)(value); \
- (u32) do_div(____val, NSEC_PER_SEC); \
- })
+#include "stages/stage3_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
@@ -479,59 +236,7 @@ static struct trace_event_functions trace_event_type_funcs_##call = { \

#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

-#undef __field_ext
-#define __field_ext(_type, _item, _filter_type) { \
- .type = #_type, .name = #_item, \
- .size = sizeof(_type), .align = __alignof__(_type), \
- .is_signed = is_signed_type(_type), .filter_type = _filter_type },
-
-#undef __field_struct_ext
-#define __field_struct_ext(_type, _item, _filter_type) { \
- .type = #_type, .name = #_item, \
- .size = sizeof(_type), .align = __alignof__(_type), \
- 0, .filter_type = _filter_type },
-
-#undef __field
-#define __field(type, item) __field_ext(type, item, FILTER_OTHER)
-
-#undef __field_struct
-#define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER)
-
-#undef __array
-#define __array(_type, _item, _len) { \
- .type = #_type"["__stringify(_len)"]", .name = #_item, \
- .size = sizeof(_type[_len]), .align = __alignof__(_type), \
- .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
-
-#undef __dynamic_array
-#define __dynamic_array(_type, _item, _len) { \
- .type = "__data_loc " #_type "[]", .name = #_item, \
- .size = 4, .align = 4, \
- .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
-
-#undef __string
-#define __string(item, src) __dynamic_array(char, item, -1)
-
-#undef __string_len
-#define __string_len(item, src, len) __dynamic_array(char, item, -1)
-
-#undef __bitmask
-#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
-
-#undef __rel_dynamic_array
-#define __rel_dynamic_array(_type, _item, _len) { \
- .type = "__rel_loc " #_type "[]", .name = #_item, \
- .size = 4, .align = 4, \
- .is_signed = is_signed_type(_type), .filter_type = FILTER_OTHER },
-
-#undef __rel_string
-#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_string_len
-#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_bitmask
-#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
+#include "stages/stage4_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
@@ -544,85 +249,7 @@ static struct trace_event_fields trace_event_fields_##call[] = { \

#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

-/*
- * remember the offset of each array from the beginning of the event.
- */
-
-#undef __entry
-#define __entry entry
-
-#undef __field
-#define __field(type, item)
-
-#undef __field_ext
-#define __field_ext(type, item, filter_type)
-
-#undef __field_struct
-#define __field_struct(type, item)
-
-#undef __field_struct_ext
-#define __field_struct_ext(type, item, filter_type)
-
-#undef __array
-#define __array(type, item, len)
-
-#undef __dynamic_array
-#define __dynamic_array(type, item, len) \
- __item_length = (len) * sizeof(type); \
- __data_offsets->item = __data_size + \
- offsetof(typeof(*entry), __data); \
- __data_offsets->item |= __item_length << 16; \
- __data_size += __item_length;
-
-#undef __string
-#define __string(item, src) __dynamic_array(char, item, \
- strlen((src) ? (const char *)(src) : "(null)") + 1)
-
-#undef __string_len
-#define __string_len(item, src, len) __dynamic_array(char, item, (len) + 1)
-
-#undef __rel_dynamic_array
-#define __rel_dynamic_array(type, item, len) \
- __item_length = (len) * sizeof(type); \
- __data_offsets->item = __data_size + \
- offsetof(typeof(*entry), __data) - \
- offsetof(typeof(*entry), __rel_loc_##item) - \
- sizeof(u32); \
- __data_offsets->item |= __item_length << 16; \
- __data_size += __item_length;
-
-#undef __rel_string
-#define __rel_string(item, src) __rel_dynamic_array(char, item, \
- strlen((src) ? (const char *)(src) : "(null)") + 1)
-
-#undef __rel_string_len
-#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, (len) + 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 __rel_bitmask
-#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, \
- __bitmask_size_in_longs(nr_bits))
+#include "stages/stage5_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
@@ -745,88 +372,7 @@ static inline notrace int trace_event_get_offsets_##call( \
#define _TRACE_PERF_INIT(call)
#endif /* CONFIG_PERF_EVENTS */

-#undef __entry
-#define __entry entry
-
-#undef __field
-#define __field(type, item)
-
-#undef __field_struct
-#define __field_struct(type, item)
-
-#undef __array
-#define __array(type, item, len)
-
-#undef __dynamic_array
-#define __dynamic_array(type, item, len) \
- __entry->__data_loc_##item = __data_offsets.item;
-
-#undef __string
-#define __string(item, src) __dynamic_array(char, item, -1)
-
-#undef __string_len
-#define __string_len(item, src, len) __dynamic_array(char, item, -1)
-
-#undef __assign_str
-#define __assign_str(dst, src) \
- strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
-
-#undef __assign_str_len
-#define __assign_str_len(dst, src, len) \
- do { \
- memcpy(__get_str(dst), (src), (len)); \
- __get_str(dst)[len] = '\0'; \
- } while(0)
-
-#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 __rel_dynamic_array
-#define __rel_dynamic_array(type, item, len) \
- __entry->__rel_loc_##item = __data_offsets.item;
-
-#undef __rel_string
-#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
-
-#undef __rel_string_len
-#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
-
-#undef __assign_rel_str
-#define __assign_rel_str(dst, src) \
- strcpy(__get_rel_str(dst), (src) ? (const char *)(src) : "(null)");
-
-#undef __assign_rel_str_len
-#define __assign_rel_str_len(dst, src, len) \
- do { \
- memcpy(__get_rel_str(dst), (src), (len)); \
- __get_rel_str(dst)[len] = '\0'; \
- } while (0)
-
-#undef __rel_bitmask
-#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
-
-#undef __get_rel_bitmask
-#define __get_rel_bitmask(field) (char *)__get_rel_dynamic_array(field)
-
-#undef __assign_rel_bitmask
-#define __assign_rel_bitmask(dst, src, nr_bits) \
- memcpy(__get_rel_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
-
-#undef TP_fast_assign
-#define TP_fast_assign(args...) args
-
-#undef __perf_count
-#define __perf_count(c) (c)
-
-#undef __perf_task
-#define __perf_task(t) (t)
+#include "stages/stage6_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
@@ -872,36 +418,7 @@ static inline void ftrace_test_probe_##call(void) \

#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)

-#undef __entry
-#define __entry REC
-
-#undef __print_flags
-#undef __print_symbolic
-#undef __print_hex
-#undef __print_hex_str
-#undef __get_dynamic_array
-#undef __get_dynamic_array_len
-#undef __get_str
-#undef __get_bitmask
-#undef __get_rel_dynamic_array
-#undef __get_rel_dynamic_array_len
-#undef __get_rel_str
-#undef __get_rel_bitmask
-#undef __print_array
-#undef __print_hex_dump
-
-/*
- * The below is not executed in the kernel. It is only what is
- * displayed in the print format for userspace to parse.
- */
-#undef __print_ns_to_secs
-#define __print_ns_to_secs(val) (val) / 1000000000UL
-
-#undef __print_ns_without_secs
-#define __print_ns_without_secs(val) (val) % 1000000000UL
-
-#undef TP_printk
-#define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args)
+#include "stages/stage7_defines.h"

#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
--
2.35.1
\
 
 \ /
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