X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fside%2Ftrace.h;h=5df637fb1634c6558c55169fef32b62e36f93e74;hb=867b47257f503a929308d62fdb8656da18408bd8;hp=0371cd8301471717851d66da1af8a9a01eb8a142;hpb=3fa64a4cf69f6e2bff789e7be2fbbf25bb647328;p=libside.git diff --git a/include/side/trace.h b/include/side/trace.h index 0371cd8..5df637f 100644 --- a/include/side/trace.h +++ b/include/side/trace.h @@ -11,156 +11,34 @@ #include #include #include +#include +#include #include #include -/* SIDE stands for "Static Instrumentation Dynamically Enabled" */ - -//TODO: as those structures will be ABI, we need to either consider them -//fixed forever, or think of a scheme that would allow their binary -//representation to be extended if need be. - -struct side_arg_vec; -struct side_arg_vec_description; -struct side_arg_dynamic_vec; -struct side_arg_dynamic_vec_vla; -struct side_type_description; -struct side_event_field; -struct side_event_field_sg; -struct side_tracer_visitor_ctx; -struct side_tracer_dynamic_struct_visitor_ctx; -struct side_tracer_dynamic_vla_visitor_ctx; -struct side_event_description; -struct side_arg_dynamic_event_struct; -struct side_events_register_handle; - -enum side_type { - /* Basic types */ - SIDE_TYPE_BOOL, - SIDE_TYPE_U8, - SIDE_TYPE_U16, - SIDE_TYPE_U32, - SIDE_TYPE_U64, - SIDE_TYPE_S8, - SIDE_TYPE_S16, - SIDE_TYPE_S32, - SIDE_TYPE_S64, - SIDE_TYPE_BYTE, - SIDE_TYPE_POINTER32, - SIDE_TYPE_POINTER64, - SIDE_TYPE_FLOAT_BINARY16, - SIDE_TYPE_FLOAT_BINARY32, - SIDE_TYPE_FLOAT_BINARY64, - SIDE_TYPE_FLOAT_BINARY128, - SIDE_TYPE_STRING, - - /* Compound types */ - SIDE_TYPE_STRUCT, - SIDE_TYPE_STRUCT_SG, - SIDE_TYPE_ARRAY, - SIDE_TYPE_VLA, - SIDE_TYPE_VLA_VISITOR, - - SIDE_TYPE_ARRAY_U8, - SIDE_TYPE_ARRAY_U16, - SIDE_TYPE_ARRAY_U32, - SIDE_TYPE_ARRAY_U64, - SIDE_TYPE_ARRAY_S8, - SIDE_TYPE_ARRAY_S16, - SIDE_TYPE_ARRAY_S32, - SIDE_TYPE_ARRAY_S64, - SIDE_TYPE_ARRAY_BYTE, - SIDE_TYPE_ARRAY_POINTER32, - SIDE_TYPE_ARRAY_POINTER64, - - SIDE_TYPE_VLA_U8, - SIDE_TYPE_VLA_U16, - SIDE_TYPE_VLA_U32, - SIDE_TYPE_VLA_U64, - SIDE_TYPE_VLA_S8, - SIDE_TYPE_VLA_S16, - SIDE_TYPE_VLA_S32, - SIDE_TYPE_VLA_S64, - SIDE_TYPE_VLA_BYTE, - SIDE_TYPE_VLA_POINTER32, - SIDE_TYPE_VLA_POINTER64, - - /* Enumeration types */ - SIDE_TYPE_ENUM, - SIDE_TYPE_ENUM_BITMAP, - - /* Dynamic type */ - SIDE_TYPE_DYNAMIC, -}; - -enum side_dynamic_type { - /* Basic types */ - SIDE_DYNAMIC_TYPE_NULL, - SIDE_DYNAMIC_TYPE_BOOL, - SIDE_DYNAMIC_TYPE_U8, - SIDE_DYNAMIC_TYPE_U16, - SIDE_DYNAMIC_TYPE_U32, - SIDE_DYNAMIC_TYPE_U64, - SIDE_DYNAMIC_TYPE_S8, - SIDE_DYNAMIC_TYPE_S16, - SIDE_DYNAMIC_TYPE_S32, - SIDE_DYNAMIC_TYPE_S64, - SIDE_DYNAMIC_TYPE_BYTE, - SIDE_DYNAMIC_TYPE_POINTER32, - SIDE_DYNAMIC_TYPE_POINTER64, - SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, - SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, - SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, - SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, - SIDE_DYNAMIC_TYPE_STRING, - - /* Compound types */ - SIDE_DYNAMIC_TYPE_STRUCT, - SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, - SIDE_DYNAMIC_TYPE_VLA, - SIDE_DYNAMIC_TYPE_VLA_VISITOR, -}; - -enum side_attr_type { - SIDE_ATTR_TYPE_NULL, - SIDE_ATTR_TYPE_BOOL, - SIDE_ATTR_TYPE_U8, - SIDE_ATTR_TYPE_U16, - SIDE_ATTR_TYPE_U32, - SIDE_ATTR_TYPE_U64, - SIDE_ATTR_TYPE_S8, - SIDE_ATTR_TYPE_S16, - SIDE_ATTR_TYPE_S32, - SIDE_ATTR_TYPE_S64, - SIDE_ATTR_TYPE_POINTER32, - SIDE_ATTR_TYPE_POINTER64, - SIDE_ATTR_TYPE_FLOAT_BINARY16, - SIDE_ATTR_TYPE_FLOAT_BINARY32, - SIDE_ATTR_TYPE_FLOAT_BINARY64, - SIDE_ATTR_TYPE_FLOAT_BINARY128, - SIDE_ATTR_TYPE_STRING, -}; - -enum side_type_sg { - SIDE_TYPE_SG_UNSIGNED_INT, - SIDE_TYPE_SG_SIGNED_INT, -}; +/* + * SIDE stands for "Software Instrumentation Dynamically Enabled" + * + * This is an instrumentation ABI for Linux user-space, which exposes an + * instrumentation type system and facilities allowing a kernel or + * user-space tracer to consume user-space instrumentation. + * + * The extensibility scheme for the SIDE ABI for event state is as + * follows: + * + * * If the semantic of the "struct side_event_state_N" fields change, + * the SIDE_EVENT_STATE_ABI_VERSION should be increased. The + * "struct side_event_state_N" is not extensible and must have its + * ABI version increased whenever it is changed. Note that increasing + * the version of SIDE_EVENT_DESCRIPTION_ABI_VERSION is not necessary + * when changing the layout of "struct side_event_state_N". + */ -enum side_loglevel { - SIDE_LOGLEVEL_EMERG = 0, - SIDE_LOGLEVEL_ALERT = 1, - SIDE_LOGLEVEL_CRIT = 2, - SIDE_LOGLEVEL_ERR = 3, - SIDE_LOGLEVEL_WARNING = 4, - SIDE_LOGLEVEL_NOTICE = 5, - SIDE_LOGLEVEL_INFO = 6, - SIDE_LOGLEVEL_DEBUG = 7, -}; +#define SIDE_EVENT_STATE_ABI_VERSION 0 -enum side_visitor_status { - SIDE_VISITOR_STATUS_OK = 0, - SIDE_VISITOR_STATUS_ERROR = -1, -}; +#include +#include +#include enum side_error { SIDE_ERROR_OK = 0, @@ -171,1167 +49,70 @@ enum side_error { SIDE_ERROR_EXITING = 5, }; -enum side_type_byte_order { - SIDE_TYPE_BYTE_ORDER_LE = 0, - SIDE_TYPE_BYTE_ORDER_BE = 1, -}; - -#if (SIDE_BYTE_ORDER == SIDE_LITTLE_ENDIAN) -# define SIDE_TYPE_BYTE_ORDER_HOST SIDE_TYPE_BYTE_ORDER_LE -#else -# define SIDE_TYPE_BYTE_ORDER_HOST SIDE_TYPE_BYTE_ORDER_BE -#endif - -#if (SIDE_FLOAT_WORD_ORDER == SIDE_LITTLE_ENDIAN) -# define SIDE_TYPE_FLOAT_WORD_ORDER_HOST SIDE_TYPE_BYTE_ORDER_LE -#else -# define SIDE_TYPE_FLOAT_WORD_ORDER_HOST SIDE_TYPE_BYTE_ORDER_BE -#endif - -typedef enum side_visitor_status (*side_visitor)( - const struct side_tracer_visitor_ctx *tracer_ctx, - void *app_ctx); -typedef enum side_visitor_status (*side_dynamic_struct_visitor)( - const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx, - void *app_ctx); -typedef enum side_visitor_status (*side_dynamic_vla_visitor)( - const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx, - void *app_ctx); - -union side_integer_value { - uint8_t side_u8; - uint16_t side_u16; - uint32_t side_u32; - uint64_t side_u64; - int8_t side_s8; - int16_t side_s16; - int32_t side_s32; - int64_t side_s64; -}; - -union side_float_value { -#if __HAVE_FLOAT16 - _Float16 side_float_binary16; -#endif -#if __HAVE_FLOAT32 - _Float32 side_float_binary32; -#endif -#if __HAVE_FLOAT64 - _Float64 side_float_binary64; -#endif -#if __HAVE_FLOAT128 - _Float128 side_float_binary128; -#endif -}; - -struct side_attr_value { - uint32_t type; /* enum side_attr_type */ - union { - union side_integer_value integer_value; - union side_float_value float_value; - uint8_t side_bool; - uint64_t string; /* const char * */ - } u; -}; - -/* User attributes. */ -struct side_attr { - const char *key; - const struct side_attr_value value; -}; - -struct side_type_integer { - const struct side_attr *attr; - uint32_t nr_attr; - uint16_t integer_size_bits; /* bits */ - uint16_t len_bits; /* bits */ - uint8_t signedness; /* true/false */ - uint8_t byte_order; /* enum side_type_byte_order */ -}; - -struct side_type_float { - const struct side_attr *attr; - uint32_t nr_attr; - uint32_t byte_order; /* enum side_type_byte_order */ - uint16_t float_size_bits; /* bits */ -}; - -struct side_enum_mapping { - int64_t range_begin; - int64_t range_end; - const char *label; -}; - -struct side_enum_mappings { - const struct side_enum_mapping *mappings; - const struct side_attr *attr; - uint32_t nr_mappings; - uint32_t nr_attr; -}; - -struct side_enum_bitmap_mapping { - uint64_t range_begin; - uint64_t range_end; - const char *label; -}; - -struct side_enum_bitmap_mappings { - const struct side_enum_bitmap_mapping *mappings; - const struct side_attr *attr; - uint32_t nr_mappings; - uint32_t nr_attr; -}; - -struct side_type_struct { - uint32_t nr_fields; - uint32_t nr_attr; - const struct side_event_field *fields; - const struct side_attr *attr; -}; - -struct side_type_sg_description { - uint64_t offset; /* bytes */ - uint32_t type; /* enum side_type_sg */ - union { - struct { - struct side_type_integer type; - uint16_t offset_bits; /* bits */ - } side_integer; - } u; -}; - -struct side_struct_field_sg { - const char *field_name; - struct side_type_sg_description side_type; -}; - -/* Structure fields scatter-gather. */ -struct side_type_struct_sg { - uint32_t nr_fields; - uint32_t nr_attr; - const struct side_struct_field_sg *fields_sg; - const struct side_attr *attr; -}; - -struct side_type_description { - uint32_t type; /* enum side_type */ - union { - /* Basic types */ - struct { - const struct side_attr *attr; - uint32_t nr_attr; - } side_basic; - - struct side_type_integer side_integer; - struct side_type_float side_float; - - /* Compound types */ - struct { - const struct side_type_description *elem_type; - const struct side_attr *attr; - uint32_t length; - uint32_t nr_attr; - } side_array; - struct { - const struct side_type_description *elem_type; - const struct side_attr *attr; - uint32_t nr_attr; - } side_vla; - struct { - const struct side_type_description *elem_type; - side_visitor visitor; - const struct side_attr *attr; - uint32_t nr_attr; - } side_vla_visitor; - const struct side_type_struct *side_struct; - const struct side_type_struct_sg *side_struct_sg; - - /* Enumeration types */ - struct { - const struct side_enum_mappings *mappings; - const struct side_type_description *elem_type; - } side_enum; - struct { - const struct side_enum_bitmap_mappings *mappings; - const struct side_type_description *elem_type; - } side_enum_bitmap; - } u; -}; - -struct side_event_field { - const char *field_name; - struct side_type_description side_type; -}; - -enum side_event_flags { - SIDE_EVENT_FLAG_VARIADIC = (1 << 0), -}; +/* + * This structure is _not_ packed to allow atomic operations on its + * fields. Changes to this structure must bump the "Event state ABI + * version" and tracers _must_ learn how to deal with this ABI, + * otherwise they should reject the event. + */ -struct side_callback { - union { - void (*call)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - void *priv); - void (*call_variadic)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - const struct side_arg_dynamic_event_struct *var_struct, - void *priv); - } u; - void *priv; +struct side_event_state { + uint32_t version; /* Event state ABI version. */ }; -struct side_event_description { - uintptr_t *enabled; - const char *provider_name; - const char *event_name; - const struct side_event_field *fields; - const struct side_attr *attr; - const struct side_callback *callbacks; - uint64_t flags; - uint32_t version; - uint32_t loglevel; /* enum side_loglevel */ - uint32_t nr_fields; - uint32_t nr_attr; +struct side_event_state_0 { + struct side_event_state parent; /* Required first field. */ uint32_t nr_callbacks; + uintptr_t enabled; + const struct side_callback *callbacks; + struct side_event_description *desc; }; -struct side_arg_dynamic_vec { - uint32_t dynamic_type; /* enum side_dynamic_type */ - union { - /* Basic types */ - struct { - const struct side_attr *attr; - uint32_t nr_attr; - union { - uint8_t side_bool; - uint8_t side_byte; - uint64_t string; /* const char * */ - } u; - } side_basic; - - /* Integer type */ - struct { - struct side_type_integer type; - union side_integer_value value; - } side_integer; - - struct { - struct side_type_float type; - union side_float_value value; - } side_float; - - /* Compound types */ - const struct side_arg_dynamic_event_struct *side_dynamic_struct; - struct { - void *app_ctx; - side_dynamic_struct_visitor visitor; - const struct side_attr *attr; - uint32_t nr_attr; - } side_dynamic_struct_visitor; - const struct side_arg_dynamic_vec_vla *side_dynamic_vla; - struct { - void *app_ctx; - side_dynamic_vla_visitor visitor; - const struct side_attr *attr; - uint32_t nr_attr; - } side_dynamic_vla_visitor; - } u; -}; - -struct side_arg_dynamic_vec_vla { - const struct side_arg_dynamic_vec *sav; - const struct side_attr *attr; - uint32_t len; - uint32_t nr_attr; -}; - -struct side_arg_dynamic_event_field { - const char *field_name; - const struct side_arg_dynamic_vec elem; -}; - -struct side_arg_dynamic_event_struct { - const struct side_arg_dynamic_event_field *fields; - const struct side_attr *attr; - uint32_t len; - uint32_t nr_attr; -}; - -struct side_arg_vec { - enum side_type type; - union { - /* Integer types */ - union side_integer_value integer_value; - - /* Basic types */ - union side_float_value float_value; - uint8_t side_bool; - uint8_t side_byte; - uint64_t string; /* const char * */ - - /* Compound types */ - const struct side_arg_vec_description *side_struct; - const struct side_arg_vec_description *side_array; - const struct side_arg_vec_description *side_vla; - void *side_vla_app_visitor_ctx; - void *side_array_fixint; - struct { - void *p; - uint32_t length; - } side_vla_fixint; - void *side_struct_sg_ptr; - - /* Dynamic type */ - struct side_arg_dynamic_vec dynamic; - } u; -}; - -struct side_arg_vec_description { - const struct side_arg_vec *sav; - uint32_t len; -}; - -/* The visitor pattern is a double-dispatch visitor. */ -struct side_tracer_visitor_ctx { - enum side_visitor_status (*write_elem)( - const struct side_tracer_visitor_ctx *tracer_ctx, - const struct side_arg_vec *elem); - void *priv; /* Private tracer context. */ -}; - -struct side_tracer_dynamic_struct_visitor_ctx { - enum side_visitor_status (*write_field)( - const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx, - const struct side_arg_dynamic_event_field *dynamic_field); - void *priv; /* Private tracer context. */ -}; - -struct side_tracer_dynamic_vla_visitor_ctx { - enum side_visitor_status (*write_elem)( - const struct side_tracer_dynamic_vla_visitor_ctx *tracer_ctx, - const struct side_arg_dynamic_vec *elem); - void *priv; /* Private tracer context. */ -}; - -/* Event and type attributes */ - -#if SIDE_BITS_PER_LONG == 64 -# define SIDE_TYPE_POINTER_HOST SIDE_TYPE_POINTER64 -# define SIDE_TYPE_ARRAY_POINTER_HOST SIDE_TYPE_ARRAY_POINTER64 -# define SIDE_TYPE_VLA_POINTER_HOST SIDE_TYPE_VLA_POINTER64 -# define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER64 -# define SIDE_ATTR_TYPE_POINTER_HOST SIDE_ATTR_TYPE_POINTER64 -# define SIDE_PTR_HOST .side_u64 -#else -# define SIDE_TYPE_POINTER_HOST SIDE_TYPE_POINTER32 -# define SIDE_TYPE_ARRAY_POINTER_HOST SIDE_TYPE_ARRAY_POINTER32 -# define SIDE_TYPE_VLA_POINTER_HOST SIDE_TYPE_VLA_POINTER32 -# define SIDE_DYNAMIC_TYPE_POINTER_HOST SIDE_DYNAMIC_TYPE_POINTER32 -# define SIDE_ATTR_TYPE_POINTER_HOST SIDE_ATTR_TYPE_POINTER32 -# define SIDE_PTR_HOST .side_u32 +#ifdef __cplusplus +extern "C" { #endif -#define side_attr(_key, _value) \ - { \ - .key = _key, \ - .value = SIDE_PARAM(_value), \ - } +struct side_callback; -#define side_attr_list(...) \ - SIDE_COMPOUND_LITERAL(const struct side_attr, __VA_ARGS__) +extern const char side_empty_callback[]; -#define side_attr_null(_val) { .type = SIDE_ATTR_TYPE_NULL } -#define side_attr_bool(_val) { .type = SIDE_ATTR_TYPE_BOOL, .u = { .side_bool = !!(_val) } } -#define side_attr_u8(_val) { .type = SIDE_ATTR_TYPE_U8, .u = { .integer_value = { .side_u8 = (_val) } } } -#define side_attr_u16(_val) { .type = SIDE_ATTR_TYPE_U16, .u = { .integer_value = { .side_u16 = (_val) } } } -#define side_attr_u32(_val) { .type = SIDE_ATTR_TYPE_U32, .u = { .integer_value = { .side_u32 = (_val) } } } -#define side_attr_u64(_val) { .type = SIDE_ATTR_TYPE_U64, .u = { .integer_value = { .side_u64 = (_val) } } } -#define side_attr_s8(_val) { .type = SIDE_ATTR_TYPE_S8, .u = { .integer_value = { .side_s8 = (_val) } } } -#define side_attr_s16(_val) { .type = SIDE_ATTR_TYPE_S16, .u = { .integer_value = { .side_s16 = (_val) } } } -#define side_attr_s32(_val) { .type = SIDE_ATTR_TYPE_S32, .u = { .integer_value = { .side_s32 = (_val) } } } -#define side_attr_s64(_val) { .type = SIDE_ATTR_TYPE_S64, .u = { .integer_value = { .side_s64 = (_val) } } } -#define side_attr_pointer(_val) { .type = SIDE_ATTR_TYPE_POINTER_HOST, .u = { .integer_value = { SIDE_PTR_HOST = (uintptr_t) (_val) } } } -#define side_attr_float_binary16(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY16, .u = { .float_value = { .side_float_binary16 = (_val) } } } -#define side_attr_float_binary32(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY32, .u = { .float_value = { .side_float_binary32 = (_val) } } } -#define side_attr_float_binary64(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY64, .u = { .float_value = { .side_float_binary64 = (_val) } } } -#define side_attr_float_binary128(_val) { .type = SIDE_ATTR_TYPE_FLOAT_BINARY128, .u = { .float_value = { .side_float_binary128 = (_val) } } } -#define side_attr_string(_val) { .type = SIDE_ATTR_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } } +void side_call(const struct side_event_state *state, + const struct side_arg_vec *side_arg_vec); +void side_call_variadic(const struct side_event_state *state, + const struct side_arg_vec *side_arg_vec, + const struct side_arg_dynamic_struct *var_struct); -/* Static field definition */ - -#define _side_type_basic(_type, _attr) \ - { \ - .type = _type, \ - .u = { \ - .side_basic = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } - -#define _side_type_integer(_type, _signedness, _byte_order, _integer_size_bits, _len_bits, _attr) \ - { \ - .type = _type, \ - .u = { \ - .side_integer = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .integer_size_bits = _integer_size_bits, \ - .len_bits = _len_bits, \ - .signedness = _signedness, \ - .byte_order = _byte_order, \ - }, \ - }, \ - } - -#define _side_type_float(_type, _byte_order, _float_size_bits, _attr) \ - { \ - .type = _type, \ - .u = { \ - .side_float = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .byte_order = _byte_order, \ - .float_size_bits = _float_size_bits, \ - }, \ - }, \ - } - -#define _side_field(_name, _type) \ - { \ - .field_name = _name, \ - .side_type = _type, \ - } - -/* Host endian */ -#define side_type_bool(_attr) _side_type_basic(SIDE_TYPE_BOOL, SIDE_PARAM(_attr)) -#define side_type_u8(_attr) _side_type_integer(SIDE_TYPE_U8, false, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr)) -#define side_type_u16(_attr) _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_HOST, 16, 16, SIDE_PARAM(_attr)) -#define side_type_u32(_attr) _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_HOST, 32, 32, SIDE_PARAM(_attr)) -#define side_type_u64(_attr) _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_HOST, 64, 64, SIDE_PARAM(_attr)) -#define side_type_s8(_attr) _side_type_integer(SIDE_TYPE_S8, true, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr)) -#define side_type_s16(_attr) _side_type_integer(SIDE_TYPE_S16, true, SIDE_TYPE_BYTE_ORDER_HOST, 16, 16, SIDE_PARAM(_attr)) -#define side_type_s32(_attr) _side_type_integer(SIDE_TYPE_S32, true, SIDE_TYPE_BYTE_ORDER_HOST, 32, 32, SIDE_PARAM(_attr)) -#define side_type_s64(_attr) _side_type_integer(SIDE_TYPE_S64, true, SIDE_TYPE_BYTE_ORDER_HOST, 64, 64, SIDE_PARAM(_attr)) -#define side_type_byte(_attr) _side_type_basic(SIDE_TYPE_BYTE, SIDE_PARAM(_attr)) -#define side_type_pointer(_attr) _side_type_integer(SIDE_TYPE_POINTER_HOST, false, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_BITS_PER_LONG, \ - SIDE_BITS_PER_LONG, SIDE_PARAM(_attr)) -#define side_type_float_binary16(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 16, SIDE_PARAM(_attr)) -#define side_type_float_binary32(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 32, SIDE_PARAM(_attr)) -#define side_type_float_binary64(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 64, SIDE_PARAM(_attr)) -#define side_type_float_binary128(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, 128, SIDE_PARAM(_attr)) -#define side_type_string(_attr) _side_type_basic(SIDE_TYPE_STRING, SIDE_PARAM(_attr)) -#define side_type_dynamic(_attr) _side_type_basic(SIDE_TYPE_DYNAMIC, SIDE_PARAM(_attr)) - -#define side_field_bool(_name, _attr) _side_field(_name, side_type_bool(SIDE_PARAM(_attr))) -#define side_field_u8(_name, _attr) _side_field(_name, side_type_u8(SIDE_PARAM(_attr))) -#define side_field_u16(_name, _attr) _side_field(_name, side_type_u16(SIDE_PARAM(_attr))) -#define side_field_u32(_name, _attr) _side_field(_name, side_type_u32(SIDE_PARAM(_attr))) -#define side_field_u64(_name, _attr) _side_field(_name, side_type_u64(SIDE_PARAM(_attr))) -#define side_field_s8(_name, _attr) _side_field(_name, side_type_s8(SIDE_PARAM(_attr))) -#define side_field_s16(_name, _attr) _side_field(_name, side_type_s16(SIDE_PARAM(_attr))) -#define side_field_s32(_name, _attr) _side_field(_name, side_type_s32(SIDE_PARAM(_attr))) -#define side_field_s64(_name, _attr) _side_field(_name, side_type_s64(SIDE_PARAM(_attr))) -#define side_field_byte(_name, _attr) _side_field(_name, side_type_byte(SIDE_PARAM(_attr))) -#define side_field_pointer(_name, _attr) _side_field(_name, side_type_pointer(SIDE_PARAM(_attr))) -#define side_field_float_binary16(_name, _attr) _side_field(_name, side_type_float_binary16(SIDE_PARAM(_attr))) -#define side_field_float_binary32(_name, _attr) _side_field(_name, side_type_float_binary32(SIDE_PARAM(_attr))) -#define side_field_float_binary64(_name, _attr) _side_field(_name, side_type_float_binary64(SIDE_PARAM(_attr))) -#define side_field_float_binary128(_name, _attr) _side_field(_name, side_type_float_binary128(SIDE_PARAM(_attr))) -#define side_field_string(_name, _attr) _side_field(_name, side_type_string(SIDE_PARAM(_attr))) -#define side_field_dynamic(_name, _attr) _side_field(_name, side_type_dynamic(SIDE_PARAM(_attr))) - -/* Little endian */ -#define side_type_u16_le(_attr) _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_LE, 16, 16, SIDE_PARAM(_attr)) -#define side_type_u32_le(_attr) _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_LE, 32, 32, SIDE_PARAM(_attr)) -#define side_type_u64_le(_attr) _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_LE, 64, 64, SIDE_PARAM(_attr)) -#define side_type_s16_le(_attr) _side_type_integer(SIDE_TYPE_S16, true, SIDE_TYPE_BYTE_ORDER_LE, 16, 16, SIDE_PARAM(_attr)) -#define side_type_s32_le(_attr) _side_type_integer(SIDE_TYPE_S32, true, SIDE_TYPE_BYTE_ORDER_LE, 32, 32, SIDE_PARAM(_attr)) -#define side_type_s64_le(_attr) _side_type_integer(SIDE_TYPE_S64, true, SIDE_TYPE_BYTE_ORDER_LE, 64, 64, SIDE_PARAM(_attr)) -#define side_type_pointer_le(_attr) _side_type_integer(SIDE_TYPE_POINTER_HOST, false, SIDE_TYPE_BYTE_ORDER_LE, SIDE_BITS_PER_LONG, \ - SIDE_BITS_PER_LONG, SIDE_PARAM(_attr)) -#define side_type_float_binary16_le(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_LE, 16, SIDE_PARAM(_attr)) -#define side_type_float_binary32_le(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_LE, 32, SIDE_PARAM(_attr)) -#define side_type_float_binary64_le(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_LE, 64, SIDE_PARAM(_attr)) -#define side_type_float_binary128_le(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_LE, 128, SIDE_PARAM(_attr)) - -#define side_field_u16_le(_name, _attr) _side_field(_name, side_type_u16_le(SIDE_PARAM(_attr))) -#define side_field_u32_le(_name, _attr) _side_field(_name, side_type_u32_le(SIDE_PARAM(_attr))) -#define side_field_u64_le(_name, _attr) _side_field(_name, side_type_u64_le(SIDE_PARAM(_attr))) -#define side_field_s16_le(_name, _attr) _side_field(_name, side_type_s16_le(SIDE_PARAM(_attr))) -#define side_field_s32_le(_name, _attr) _side_field(_name, side_type_s32_le(SIDE_PARAM(_attr))) -#define side_field_s64_le(_name, _attr) _side_field(_name, side_type_s64_le(SIDE_PARAM(_attr))) -#define side_field_pointer_le(_name, _attr) _side_field(_name, side_type_pointer_le(SIDE_PARAM(_attr))) -#define side_field_float_binary16_le(_name, _attr) _side_field(_name, side_type_float_binary16_le(SIDE_PARAM(_attr))) -#define side_field_float_binary32_le(_name, _attr) _side_field(_name, side_type_float_binary32_le(SIDE_PARAM(_attr))) -#define side_field_float_binary64_le(_name, _attr) _side_field(_name, side_type_float_binary64_le(SIDE_PARAM(_attr))) -#define side_field_float_binary128_le(_name, _attr) _side_field(_name, side_type_float_binary128_le(SIDE_PARAM(_attr))) - -/* Big endian */ -#define side_type_u16_be(_attr) _side_type_integer(SIDE_TYPE_U16, false, SIDE_TYPE_BYTE_ORDER_BE, 16, 16, SIDE_PARAM(_attr)) -#define side_type_u32_be(_attr) _side_type_integer(SIDE_TYPE_U32, false, SIDE_TYPE_BYTE_ORDER_BE, 32, 32, SIDE_PARAM(_attr)) -#define side_type_u64_be(_attr) _side_type_integer(SIDE_TYPE_U64, false, SIDE_TYPE_BYTE_ORDER_BE, 64, 64, SIDE_PARAM(_attr)) -#define side_type_s16_be(_attr) _side_type_integer(SIDE_TYPE_S16, false, SIDE_TYPE_BYTE_ORDER_BE, 16, 16, SIDE_PARAM(_attr)) -#define side_type_s32_be(_attr) _side_type_integer(SIDE_TYPE_S32, false, SIDE_TYPE_BYTE_ORDER_BE, 32, 32, SIDE_PARAM(_attr)) -#define side_type_s64_be(_attr) _side_type_integer(SIDE_TYPE_S64, false, SIDE_TYPE_BYTE_ORDER_BE, 64, 64, SIDE_PARAM(_attr)) -#define side_type_pointer_be(_attr) _side_type_integer(SIDE_TYPE_POINTER_HOST, false, SIDE_TYPE_BYTE_ORDER_BE, SIDE_BITS_PER_LONG, \ - SIDE_BITS_PER_LONG, SIDE_PARAM(_attr)) -#define side_type_float_binary16_be(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY16, SIDE_TYPE_BYTE_ORDER_BE, 16, SIDE_PARAM(_attr)) -#define side_type_float_binary32_be(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY32, SIDE_TYPE_BYTE_ORDER_BE, 32, SIDE_PARAM(_attr)) -#define side_type_float_binary64_be(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY64, SIDE_TYPE_BYTE_ORDER_BE, 64, SIDE_PARAM(_attr)) -#define side_type_float_binary128_be(_attr) _side_type_float(SIDE_TYPE_FLOAT_BINARY128, SIDE_TYPE_BYTE_ORDER_BE, 128, SIDE_PARAM(_attr)) - -#define side_field_u16_be(_name, _attr) _side_field(_name, side_type_u16_be(SIDE_PARAM(_attr))) -#define side_field_u32_be(_name, _attr) _side_field(_name, side_type_u32_be(SIDE_PARAM(_attr))) -#define side_field_u64_be(_name, _attr) _side_field(_name, side_type_u64_be(SIDE_PARAM(_attr))) -#define side_field_s16_be(_name, _attr) _side_field(_name, side_type_s16_be(SIDE_PARAM(_attr))) -#define side_field_s32_be(_name, _attr) _side_field(_name, side_type_s32_be(SIDE_PARAM(_attr))) -#define side_field_s64_be(_name, _attr) _side_field(_name, side_type_s64_be(SIDE_PARAM(_attr))) -#define side_field_pointer_be(_name, _attr) _side_field(_name, side_type_pointer_be(SIDE_PARAM(_attr))) -#define side_field_float_binary16_be(_name, _attr) _side_field(_name, side_type_float_binary16_be(SIDE_PARAM(_attr))) -#define side_field_float_binary32_be(_name, _attr) _side_field(_name, side_type_float_binary32_be(SIDE_PARAM(_attr))) -#define side_field_float_binary64_be(_name, _attr) _side_field(_name, side_type_float_binary64_be(SIDE_PARAM(_attr))) -#define side_field_float_binary128_be(_name, _attr) _side_field(_name, side_type_float_binary128_be(SIDE_PARAM(_attr))) - -#define side_type_enum(_mappings, _elem_type) \ - { \ - .type = SIDE_TYPE_ENUM, \ - .u = { \ - .side_enum = { \ - .mappings = _mappings, \ - .elem_type = _elem_type, \ - }, \ - }, \ - } -#define side_field_enum(_name, _mappings, _elem_type) \ - _side_field(_name, side_type_enum(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type))) - -#define side_type_enum_bitmap(_mappings, _elem_type) \ - { \ - .type = SIDE_TYPE_ENUM_BITMAP, \ - .u = { \ - .side_enum_bitmap = { \ - .mappings = _mappings, \ - .elem_type = _elem_type, \ - }, \ - }, \ - } -#define side_field_enum_bitmap(_name, _mappings, _elem_type) \ - _side_field(_name, side_type_enum_bitmap(SIDE_PARAM(_mappings), SIDE_PARAM(_elem_type))) - -#define side_type_struct(_struct) \ - { \ - .type = SIDE_TYPE_STRUCT, \ - .u = { \ - .side_struct = _struct, \ - }, \ - } -#define side_field_struct(_name, _struct) \ - _side_field(_name, side_type_struct(SIDE_PARAM(_struct))) - -#define _side_type_struct_define(_fields, _attr) \ - { \ - .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .fields = _fields, \ - .attr = _attr, \ - } - -#define side_define_struct(_identifier, _fields, _attr) \ - const struct side_type_struct _identifier = _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr)) - -#define side_struct_literal(_fields, _attr) \ - SIDE_COMPOUND_LITERAL(const struct side_type_struct, \ - _side_type_struct_define(SIDE_PARAM(_fields), SIDE_PARAM(_attr))) - -/* Scatter-gather struct */ - -#define _side_type_sg_integer(_type, _signedness, _byte_order, _offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \ - { \ - .offset = _offset, \ - .type = _type, \ - .u = { \ - .side_integer = { \ - .type = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .integer_size_bits = _integer_size_bits, \ - .len_bits = _len_bits, \ - .signedness = _signedness, \ - .byte_order = _byte_order, \ - }, \ - .offset_bits = _offset_bits, \ - }, \ - }, \ - } - -#define _side_field_sg(_name, _type) \ - { \ - .field_name = _name, \ - .side_type = _type, \ - } - -#define side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \ - _side_type_sg_integer(SIDE_TYPE_SG_UNSIGNED_INT, false, SIDE_TYPE_BYTE_ORDER_HOST, \ - _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)) -#define side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \ - _side_type_sg_integer(SIDE_TYPE_SG_SIGNED_INT, true, SIDE_TYPE_BYTE_ORDER_HOST, \ - _integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr)) - -#define side_field_sg_unsigned_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \ - _side_field_sg(_name, side_type_sg_unsigned_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))) -#define side_field_sg_signed_integer(_name, _integer_offset, _integer_size_bits, _offset_bits, _len_bits, _attr) \ - _side_field_sg(_name, side_type_sg_signed_integer(_integer_offset, _integer_size_bits, _offset_bits, _len_bits, SIDE_PARAM(_attr))) - -#define side_type_struct_sg(_struct_sg) \ - { \ - .type = SIDE_TYPE_STRUCT_SG, \ - .u = { \ - .side_struct_sg = _struct_sg, \ - }, \ - } -#define side_field_struct_sg(_name, _struct_sg) \ - _side_field(_name, side_type_struct_sg(SIDE_PARAM(_struct_sg))) - -#define _side_type_struct_sg_define(_fields_sg, _attr) \ - { \ - .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields_sg)), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .fields_sg = _fields_sg, \ - .attr = _attr, \ - } - -#define side_define_struct_sg(_identifier, _fields_sg, _attr) \ - const struct side_type_struct_sg _identifier = _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr)) - -#define side_struct_sg_literal(_fields_sg, _attr) \ - SIDE_COMPOUND_LITERAL(const struct side_type_struct_sg, \ - _side_type_struct_sg_define(SIDE_PARAM(_fields_sg), SIDE_PARAM(_attr))) - -#define side_type_array(_elem_type, _length, _attr) \ - { \ - .type = SIDE_TYPE_ARRAY, \ - .u = { \ - .side_array = { \ - .elem_type = _elem_type, \ - .attr = _attr, \ - .length = _length, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } -#define side_field_array(_name, _elem_type, _length, _attr) \ - _side_field(_name, side_type_array(SIDE_PARAM(_elem_type), _length, SIDE_PARAM(_attr))) - -#define side_type_vla(_elem_type, _attr) \ - { \ - .type = SIDE_TYPE_VLA, \ - .u = { \ - .side_vla = { \ - .elem_type = _elem_type, \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } -#define side_field_vla(_name, _elem_type, _attr) \ - _side_field(_name, side_type_vla(SIDE_PARAM(_elem_type), SIDE_PARAM(_attr))) - -#define side_type_vla_visitor(_elem_type, _visitor, _attr) \ - { \ - .type = SIDE_TYPE_VLA_VISITOR, \ - .u = { \ - .side_vla_visitor = { \ - .elem_type = SIDE_PARAM(_elem_type), \ - .visitor = _visitor, \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } -#define side_field_vla_visitor(_name, _elem_type, _visitor, _attr) \ - _side_field(_name, side_type_vla_visitor(SIDE_PARAM(_elem_type), _visitor, SIDE_PARAM(_attr))) - -#define side_elem(...) \ - SIDE_COMPOUND_LITERAL(const struct side_type_description, __VA_ARGS__) - -#define side_field_list(...) \ - SIDE_COMPOUND_LITERAL(const struct side_event_field, __VA_ARGS__) - -#define side_field_sg_list(...) \ - SIDE_COMPOUND_LITERAL(const struct side_struct_field_sg, __VA_ARGS__) - -/* Static field arguments */ - -#define side_arg_bool(_val) { .type = SIDE_TYPE_BOOL, .u = { .side_bool = !!(_val) } } -#define side_arg_u8(_val) { .type = SIDE_TYPE_U8, .u = { .integer_value = { .side_u8 = (_val) } } } -#define side_arg_u16(_val) { .type = SIDE_TYPE_U16, .u = { .integer_value = { .side_u16 = (_val) } } } -#define side_arg_u32(_val) { .type = SIDE_TYPE_U32, .u = { .integer_value = { .side_u32 = (_val) } } } -#define side_arg_u64(_val) { .type = SIDE_TYPE_U64, .u = { .integer_value = { .side_u64 = (_val) } } } -#define side_arg_s8(_val) { .type = SIDE_TYPE_S8, .u = { .integer_value = { .side_s8 = (_val) } } } -#define side_arg_s16(_val) { .type = SIDE_TYPE_S16, .u = { .integer_value = { .side_s16 = (_val) } } } -#define side_arg_s32(_val) { .type = SIDE_TYPE_S32, .u = { .integer_value = { .side_s32 = (_val) } } } -#define side_arg_s64(_val) { .type = SIDE_TYPE_S64, .u = { .integer_value = { .side_s64 = (_val) } } } -#define side_arg_byte(_val) { .type = SIDE_TYPE_BYTE, .u = { .side_byte = (_val) } } -#define side_arg_pointer(_val) { .type = SIDE_TYPE_POINTER_HOST, .u = { .integer_value = { SIDE_PTR_HOST = (uintptr_t) (_val) } } } -#define side_arg_enum_bitmap8(_val) { .type = SIDE_TYPE_ENUM_BITMAP8, .u = { .integer_value = { .side_u8 = (_val) } } } -#define side_arg_enum_bitmap16(_val) { .type = SIDE_TYPE_ENUM_BITMAP16, .u = { .integer_value = { .side_u16 = (_val) } } } -#define side_arg_enum_bitmap32(_val) { .type = SIDE_TYPE_ENUM_BITMAP32, .u = { .integer_value = { .side_u32 = (_val) } } } -#define side_arg_enum_bitmap64(_val) { .type = SIDE_TYPE_ENUM_BITMAP64, .u = { .integer_value = { .side_u64 = (_val) } } } -#define side_arg_enum_bitmap_array(_side_type) { .type = SIDE_TYPE_ENUM_BITMAP_ARRAY, .u = { .side_array = (_side_type) } } -#define side_arg_enum_bitmap_vla(_side_type) { .type = SIDE_TYPE_ENUM_BITMAP_VLA, .u = { .side_vla = (_side_type) } } -#define side_arg_float_binary16(_val) { .type = SIDE_TYPE_FLOAT_BINARY16, .u = { .float_value = { .side_float_binary16 = (_val) } } } -#define side_arg_float_binary32(_val) { .type = SIDE_TYPE_FLOAT_BINARY32, .u = { .float_value = { .side_float_binary32 = (_val) } } } -#define side_arg_float_binary64(_val) { .type = SIDE_TYPE_FLOAT_BINARY64, .u = { .float_value = { .side_float_binary64 = (_val) } } } -#define side_arg_float_binary128(_val) { .type = SIDE_TYPE_FLOAT_BINARY128, .u = { .float_value = { .side_float_binary128 = (_val) } } } - -#define side_arg_string(_val) { .type = SIDE_TYPE_STRING, .u = { .string = (uintptr_t) (_val) } } -#define side_arg_struct(_side_type) { .type = SIDE_TYPE_STRUCT, .u = { .side_struct = (_side_type) } } -#define side_arg_struct_sg(_ptr) { .type = SIDE_TYPE_STRUCT_SG, .u = { .side_struct_sg_ptr = (_ptr) } } -#define side_arg_array(_side_type) { .type = SIDE_TYPE_ARRAY, .u = { .side_array = (_side_type) } } -#define side_arg_vla(_side_type) { .type = SIDE_TYPE_VLA, .u = { .side_vla = (_side_type) } } -#define side_arg_vla_visitor(_ctx) { .type = SIDE_TYPE_VLA_VISITOR, .u = { .side_vla_app_visitor_ctx = (_ctx) } } - -#define side_arg_array_u8(_ptr) { .type = SIDE_TYPE_ARRAY_U8, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_u16(_ptr) { .type = SIDE_TYPE_ARRAY_U16, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_u32(_ptr) { .type = SIDE_TYPE_ARRAY_U32, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_u64(_ptr) { .type = SIDE_TYPE_ARRAY_U64, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_s8(_ptr) { .type = SIDE_TYPE_ARRAY_S8, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_s16(_ptr) { .type = SIDE_TYPE_ARRAY_S16, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_s32(_ptr) { .type = SIDE_TYPE_ARRAY_S32, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_s64(_ptr) { .type = SIDE_TYPE_ARRAY_S64, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_byte(_ptr) { .type = SIDE_TYPE_ARRAY_BYTE, .u = { .side_array_fixint = (_ptr) } } -#define side_arg_array_pointer(_ptr) { .type = SIDE_TYPE_ARRAY_POINTER_HOST, .u = { .side_array_fixint = (_ptr) } } - -#define side_arg_vla_u8(_ptr, _length) { .type = SIDE_TYPE_VLA_U8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } -#define side_arg_vla_u16(_ptr, _length) { .type = SIDE_TYPE_VLA_U16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_u32(_ptr, _length) { .type = SIDE_TYPE_VLA_U32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_u64(_ptr, _length) { .type = SIDE_TYPE_VLA_U64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_s8(_ptr, _length) { .type = SIDE_TYPE_VLA_S8, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_s16(_ptr, _length) { .type = SIDE_TYPE_VLA_S16, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_s32(_ptr, _length) { .type = SIDE_TYPE_VLA_S32, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_s64(_ptr, _length) { .type = SIDE_TYPE_VLA_S64, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_byte(_ptr, _length) { .type = SIDE_TYPE_VLA_BYTE, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } -#define side_arg_vla_pointer(_ptr, _length) { .type = SIDE_TYPE_VLA_POINTER_HOST, .u = { .side_vla_fixint = { .p = (_ptr), .length = (_length) } } } - -#define side_arg_dynamic(_dynamic_arg_type) \ - { \ - .type = SIDE_TYPE_DYNAMIC, \ - .u = { \ - .dynamic = _dynamic_arg_type, \ - }, \ - } - -/* Dynamic field arguments */ - -#define side_arg_dynamic_null(_attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_NULL, \ - .u = { \ - .side_basic = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } - -#define side_arg_dynamic_bool(_val, _attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_BOOL, \ - .u = { \ - .side_basic = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .u = { \ - .side_bool = !!(_val), \ - }, \ - }, \ - }, \ - } - -#define side_arg_dynamic_byte(_val, _attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_BYTE, \ - .u = { \ - .side_basic = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .u = { \ - .side_byte = (_val), \ - }, \ - }, \ - }, \ - } -#define side_arg_dynamic_string(_val, _attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_STRING, \ - .u = { \ - .side_basic = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .u = { \ - .string = (uintptr_t) (_val), \ - }, \ - }, \ - }, \ - } - -#define _side_arg_dynamic_integer(_field, _val, _type, _signedness, _byte_order, _integer_size_bits, _len_bits, _attr) \ - { \ - .dynamic_type = _type, \ - .u = { \ - .side_integer = { \ - .type = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .integer_size_bits = _integer_size_bits, \ - .len_bits = _len_bits, \ - .signedness = _signedness, \ - .byte_order = _byte_order, \ - }, \ - .value = { \ - _field = (_val), \ - }, \ - }, \ - }, \ - } - -#define side_arg_dynamic_u8(_val, _attr) \ - _side_arg_dynamic_integer(.side_u8, _val, SIDE_DYNAMIC_TYPE_U8, false, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s8(_val, _attr) \ - _side_arg_dynamic_integer(.side_s8, _val, SIDE_DYNAMIC_TYPE_S8, true, SIDE_TYPE_BYTE_ORDER_HOST, 8, 8, SIDE_PARAM(_attr)) - -#define _side_arg_dynamic_u16(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_u16, _val, SIDE_DYNAMIC_TYPE_U16, false, _byte_order, 16, 16, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_u32(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_u32, _val, SIDE_DYNAMIC_TYPE_U32, false, _byte_order, 32, 32, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_u64(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_u64, _val, SIDE_DYNAMIC_TYPE_U64, false, _byte_order, 64, 64, SIDE_PARAM(_attr)) - -#define _side_arg_dynamic_s16(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_s16, _val, SIDE_DYNAMIC_TYPE_S16, true, _byte_order, 16, 16, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_s32(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_s32, _val, SIDE_DYNAMIC_TYPE_S32, true, _byte_order, 32, 32, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_s64(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(.side_s64, _val, SIDE_DYNAMIC_TYPE_S64, true, _byte_order, 64, 64, SIDE_PARAM(_attr)) - -#define _side_arg_dynamic_pointer(_val, _byte_order, _attr) \ - _side_arg_dynamic_integer(SIDE_PTR_HOST, (uintptr_t) (_val), SIDE_DYNAMIC_TYPE_POINTER_HOST, false, _byte_order, \ - SIDE_BITS_PER_LONG, SIDE_BITS_PER_LONG, SIDE_PARAM(_attr)) - -#define _side_arg_dynamic_float(_field, _val, _type, _byte_order, _float_size_bits, _attr) \ - { \ - .dynamic_type = _type, \ - .u = { \ - .side_float = { \ - .type = { \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .byte_order = _byte_order, \ - .float_size_bits = _float_size_bits, \ - }, \ - .value = { \ - _field = (_val), \ - }, \ - }, \ - }, \ - } - -#define _side_arg_dynamic_float_binary16(_val, _byte_order, _attr) \ - _side_arg_dynamic_float(.side_float_binary16, _val, SIDE_DYNAMIC_TYPE_FLOAT_BINARY16, _byte_order, 16, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_float_binary32(_val, _byte_order, _attr) \ - _side_arg_dynamic_float(.side_float_binary32, _val, SIDE_DYNAMIC_TYPE_FLOAT_BINARY32, _byte_order, 32, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_float_binary64(_val, _byte_order, _attr) \ - _side_arg_dynamic_float(.side_float_binary64, _val, SIDE_DYNAMIC_TYPE_FLOAT_BINARY64, _byte_order, 64, SIDE_PARAM(_attr)) -#define _side_arg_dynamic_float_binary128(_val, _byte_order, _attr) \ - _side_arg_dynamic_float(.side_float_binary128, _val, SIDE_DYNAMIC_TYPE_FLOAT_BINARY128, _byte_order, 128, SIDE_PARAM(_attr)) - -/* Host endian */ -#define side_arg_dynamic_u16(_val, _attr) _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u32(_val, _attr) _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u64(_val, _attr) _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s16(_val, _attr) _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s32(_val, _attr) _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s64(_val, _attr) _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_pointer(_val, _attr) _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary16(_val, _attr) _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary32(_val, _attr) _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary64(_val, _attr) _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary128(_val, _attr) _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_FLOAT_WORD_ORDER_HOST, SIDE_PARAM(_attr)) - -/* Little endian */ -#define side_arg_dynamic_u16_le(_val, _attr) _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u32_le(_val, _attr) _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u64_le(_val, _attr) _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s16_le(_val, _attr) _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s32_le(_val, _attr) _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s64_le(_val, _attr) _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_pointer_le(_val, _attr) _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary16_le(_val, _attr) _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary32_le(_val, _attr) _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary64_le(_val, _attr) _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary128_le(_val, _attr) _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_LE, SIDE_PARAM(_attr)) - -/* Big endian */ -#define side_arg_dynamic_u16_be(_val, _attr) _side_arg_dynamic_u16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u32_be(_val, _attr) _side_arg_dynamic_u32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_u64_be(_val, _attr) _side_arg_dynamic_u64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s16_be(_val, _attr) _side_arg_dynamic_s16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s32_be(_val, _attr) _side_arg_dynamic_s32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_s64_be(_val, _attr) _side_arg_dynamic_s64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_pointer_be(_val, _attr) _side_arg_dynamic_pointer(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary16_be(_val, _attr) _side_arg_dynamic_float_binary16(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary32_be(_val, _attr) _side_arg_dynamic_float_binary32(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary64_be(_val, _attr) _side_arg_dynamic_float_binary64(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) -#define side_arg_dynamic_float_binary128_be(_val, _attr) _side_arg_dynamic_float_binary128(_val, SIDE_TYPE_BYTE_ORDER_BE, SIDE_PARAM(_attr)) - -#define side_arg_dynamic_vla(_vla) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_VLA, \ - .u = { \ - .side_dynamic_vla = (_vla), \ - }, \ - } - -#define side_arg_dynamic_vla_visitor(_dynamic_vla_visitor, _ctx, _attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_VLA_VISITOR, \ - .u = { \ - .side_dynamic_vla_visitor = { \ - .app_ctx = _ctx, \ - .visitor = _dynamic_vla_visitor, \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } - -#define side_arg_dynamic_struct(_struct) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT, \ - .u = { \ - .side_dynamic_struct = (_struct), \ - }, \ - } - -#define side_arg_dynamic_struct_visitor(_dynamic_struct_visitor, _ctx, _attr) \ - { \ - .dynamic_type = SIDE_DYNAMIC_TYPE_STRUCT_VISITOR, \ - .u = { \ - .side_dynamic_struct_visitor = { \ - .app_ctx = _ctx, \ - .visitor = _dynamic_struct_visitor, \ - .attr = _attr, \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }, \ - }, \ - } - -#define side_arg_dynamic_define_vec(_identifier, _sav, _attr) \ - const struct side_arg_dynamic_vec _identifier##_vec[] = { _sav }; \ - const struct side_arg_dynamic_vec_vla _identifier = { \ - .sav = _identifier##_vec, \ - .attr = _attr, \ - .len = SIDE_ARRAY_SIZE(_identifier##_vec), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - } - -#define side_arg_dynamic_define_struct(_identifier, _struct_fields, _attr) \ - const struct side_arg_dynamic_event_field _identifier##_fields[] = { _struct_fields }; \ - const struct side_arg_dynamic_event_struct _identifier = { \ - .fields = _identifier##_fields, \ - .attr = _attr, \ - .len = SIDE_ARRAY_SIZE(_identifier##_fields), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - } - -#define side_arg_define_vec(_identifier, _sav) \ - const struct side_arg_vec _identifier##_vec[] = { _sav }; \ - const struct side_arg_vec_description _identifier = { \ - .sav = _identifier##_vec, \ - .len = SIDE_ARRAY_SIZE(_identifier##_vec), \ - } - -#define side_arg_dynamic_field(_name, _elem) \ - { \ - .field_name = _name, \ - .elem = _elem, \ - } - -#define side_arg_list(...) __VA_ARGS__ - -#define side_define_enum(_identifier, _mappings, _attr) \ - const struct side_enum_mappings _identifier = { \ - .mappings = _mappings, \ - .attr = _attr, \ - .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - } - -#define side_enum_mapping_list(...) \ - SIDE_COMPOUND_LITERAL(const struct side_enum_mapping, __VA_ARGS__) - -#define side_enum_mapping_range(_label, _begin, _end) \ - { \ - .range_begin = _begin, \ - .range_end = _end, \ - .label = _label, \ - } - -#define side_enum_mapping_value(_label, _value) \ - { \ - .range_begin = _value, \ - .range_end = _value, \ - .label = _label, \ - } - -#define side_define_enum_bitmap(_identifier, _mappings, _attr) \ - const struct side_enum_bitmap_mappings _identifier = { \ - .mappings = _mappings, \ - .attr = _attr, \ - .nr_mappings = SIDE_ARRAY_SIZE(SIDE_PARAM(_mappings)), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - } - -#define side_enum_bitmap_mapping_list(...) \ - SIDE_COMPOUND_LITERAL(const struct side_enum_bitmap_mapping, __VA_ARGS__) - -#define side_enum_bitmap_mapping_range(_label, _begin, _end) \ - { \ - .range_begin = _begin, \ - .range_end = _end, \ - .label = _label, \ - } - -#define side_enum_bitmap_mapping_value(_label, _value) \ - { \ - .range_begin = _value, \ - .range_end = _value, \ - .label = _label, \ - } - -#define side_event_cond(_identifier) \ - if (side_unlikely(__atomic_load_n(&side_event_enable__##_identifier, \ - __ATOMIC_RELAXED))) - -#define side_event_call(_identifier, _sav) \ - { \ - const struct side_arg_vec side_sav[] = { _sav }; \ - const struct side_arg_vec_description sav_desc = { \ - .sav = side_sav, \ - .len = SIDE_ARRAY_SIZE(side_sav), \ - }; \ - side_call(&(_identifier), &sav_desc); \ - } - -#define side_event(_identifier, _sav) \ - side_event_cond(_identifier) \ - side_event_call(_identifier, SIDE_PARAM(_sav)) - -#define side_event_call_variadic(_identifier, _sav, _var_fields, _attr) \ - { \ - const struct side_arg_vec side_sav[] = { _sav }; \ - const struct side_arg_vec_description sav_desc = { \ - .sav = side_sav, \ - .len = SIDE_ARRAY_SIZE(side_sav), \ - }; \ - const struct side_arg_dynamic_event_field side_fields[] = { _var_fields }; \ - const struct side_arg_dynamic_event_struct var_struct = { \ - .fields = side_fields, \ - .attr = _attr, \ - .len = SIDE_ARRAY_SIZE(side_fields), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - }; \ - side_call_variadic(&(_identifier), &sav_desc, &var_struct); \ - } - -#define side_event_variadic(_identifier, _sav, _var, _attr) \ - side_event_cond(_identifier) \ - side_event_call_variadic(_identifier, SIDE_PARAM(_sav), SIDE_PARAM(_var), SIDE_PARAM(_attr)) - -#define _side_define_event(_linkage, _identifier, _provider, _event, _loglevel, _fields, _attr, _flags) \ - _linkage uintptr_t side_event_enable__##_identifier __attribute__((section("side_event_enable"))); \ - _linkage struct side_event_description __attribute__((section("side_event_description"))) \ - _identifier = { \ - .enabled = &(side_event_enable__##_identifier), \ - .provider_name = _provider, \ - .event_name = _event, \ - .fields = _fields, \ - .attr = _attr, \ - .callbacks = &side_empty_callback, \ - .flags = (_flags), \ - .version = 0, \ - .loglevel = _loglevel, \ - .nr_fields = SIDE_ARRAY_SIZE(SIDE_PARAM(_fields)), \ - .nr_attr = SIDE_ARRAY_SIZE(SIDE_PARAM(_attr)), \ - .nr_callbacks = 0, \ - }; \ - static const struct side_event_description *side_event_ptr__##_identifier \ - __attribute__((section("side_event_description_ptr"), used)) = &(_identifier); - -#define side_static_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), 0) - -#define side_static_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(static, _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC) - -#define side_hidden_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), 0) - -#define side_hidden_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(__attribute__((visibility("hidden"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC) - -#define side_export_event(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), 0) - -#define side_export_event_variadic(_identifier, _provider, _event, _loglevel, _fields, _attr) \ - _side_define_event(__attribute__((visibility("default"))), _identifier, _provider, _event, _loglevel, SIDE_PARAM(_fields), \ - SIDE_PARAM(_attr), SIDE_EVENT_FLAG_VARIADIC) - -#define side_declare_event(_identifier) \ - extern uintptr_t side_event_enable_##_identifier; \ - extern struct side_event_description _identifier - -extern const struct side_callback side_empty_callback; +struct side_events_register_handle *side_events_register(struct side_event_description **events, + uint32_t nr_events); +void side_events_unregister(struct side_events_register_handle *handle); -void side_call(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc); -void side_call_variadic(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - const struct side_arg_dynamic_event_struct *var_struct); +/* + * Userspace tracer registration API. This allows userspace tracers to + * register event notification callbacks to be notified of the currently + * registered instrumentation, and to register their callbacks to + * specific events. + */ +typedef void (*side_tracer_callback_func)(const struct side_event_description *desc, + const struct side_arg_vec *side_arg_vec, + void *priv); +typedef void (*side_tracer_callback_variadic_func)(const struct side_event_description *desc, + const struct side_arg_vec *side_arg_vec, + const struct side_arg_dynamic_struct *var_struct, + void *priv); int side_tracer_callback_register(struct side_event_description *desc, - void (*call)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - void *priv), + side_tracer_callback_func call, void *priv); int side_tracer_callback_variadic_register(struct side_event_description *desc, - void (*call_variadic)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - const struct side_arg_dynamic_event_struct *var_struct, - void *priv), + side_tracer_callback_variadic_func call_variadic, void *priv); int side_tracer_callback_unregister(struct side_event_description *desc, - void (*call)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - void *priv), + side_tracer_callback_func call, void *priv); int side_tracer_callback_variadic_unregister(struct side_event_description *desc, - void (*call_variadic)(const struct side_event_description *desc, - const struct side_arg_vec_description *sav_desc, - const struct side_arg_dynamic_event_struct *var_struct, - void *priv), + side_tracer_callback_variadic_func call_variadic, void *priv); -struct side_events_register_handle *side_events_register(struct side_event_description **events, uint32_t nr_events); -void side_events_unregister(struct side_events_register_handle *handle); - enum side_tracer_notification { SIDE_TRACER_NOTIFICATION_INSERT_EVENTS, SIDE_TRACER_NOTIFICATION_REMOVE_EVENTS, @@ -1344,8 +125,18 @@ struct side_tracer_handle *side_tracer_event_notification_register( void *priv); void side_tracer_event_notification_unregister(struct side_tracer_handle *handle); -void side_init(void); -void side_exit(void); +/* + * Explicit hooks to initialize/finalize the side instrumentation + * library. Those are also library constructor/destructor. + */ +void side_init(void) __attribute__((constructor)); +void side_exit(void) __attribute__((destructor)); + +/* + * The following constructors/destructors perform automatic registration + * of the declared side events. Those may have to be called explicitly + * in a statically linked library. + */ /* * These weak symbols, the constructor, and destructor take care of @@ -1387,4 +178,8 @@ side_event_description_ptr_exit(void) side_events_handle = NULL; } +#ifdef __cplusplus +} +#endif + #endif /* _SIDE_TRACE_H */