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/* 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
#ifndef __STAGE5_STRING_SRC_H
#define __STAGE5_STRING_SRC_H
static inline const char *__string_src(const char *str)
{
if (!str)
return EVENT_NULL_STR;
return str;
}
#endif /* __STAGE5_STRING_SRC_H */
/*
* Fields should never declare an array: i.e. __field(int, arr[5])
* If they do, it will cause issues in parsing and possibly corrupt the
* events. To prevent that from happening, test the sizeof() a fictitious
* type called "struct _test_no_array_##item" which will fail if "item"
* contains array elements (like "arr[5]").
*
* If you hit this, use __array(int, arr, 5) instead.
*/
#undef __field
#define __field(type, item) \
{ (void)sizeof(struct _test_no_array_##item *); }
#undef __field_ext
#define __field_ext(type, item, filter_type) \
{ (void)sizeof(struct _test_no_array_##item *); }
#undef __field_struct
#define __field_struct(type, item) \
{ (void)sizeof(struct _test_no_array_##item *); }
#undef __field_struct_ext
#define __field_struct_ext(type, item, filter_type) \
{ (void)sizeof(struct _test_no_array_##item *); }
#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(__string_src(src)) + 1) \
__data_offsets->item##_ptr_ = src;
#undef __string_len
#define __string_len(item, src, len) __dynamic_array(char, item, (len) + 1)\
__data_offsets->item##_ptr_ = src;
#undef __vstring
#define __vstring(item, fmt, ap) __dynamic_array(char, item, \
__trace_event_vstr_len(fmt, ap))
#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(__string_src(src)) + 1) \
__data_offsets->item##_ptr_ = src;
#undef __rel_string_len
#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, (len) + 1)\
__data_offsets->item##_ptr_ = src;
/*
* __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 __cpumask
#define __cpumask(item) __bitmask(item, nr_cpumask_bits)
#undef __rel_bitmask
#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, \
__bitmask_size_in_longs(nr_bits))
#undef __rel_cpumask
#define __rel_cpumask(item) __rel_bitmask(item, nr_cpumask_bits)
#undef __sockaddr
#define __sockaddr(field, len) __dynamic_array(u8, field, len)
#undef __rel_sockaddr
#define __rel_sockaddr(field, len) __rel_dynamic_array(u8, field, len)
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