| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | * |
| 6 | * UST dynamic type implementation. |
| 7 | */ |
| 8 | |
| 9 | #define _LGPL_SOURCE |
| 10 | #include <stdio.h> |
| 11 | #include <stdint.h> |
| 12 | #include <stddef.h> |
| 13 | #include <inttypes.h> |
| 14 | |
| 15 | #include "common/macros.h" |
| 16 | #include "common/dynamic-type.h" |
| 17 | |
| 18 | #define lttng_ust_field_enum_value(_string, _value) \ |
| 19 | LTTNG_UST_COMPOUND_LITERAL(struct lttng_ust_enum_entry, { \ |
| 20 | .struct_size = sizeof(struct lttng_ust_enum_entry), \ |
| 21 | .start = { \ |
| 22 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
| 23 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
| 24 | (long long) (_value) : (_value), \ |
| 25 | }, \ |
| 26 | .end = { \ |
| 27 | .signedness = lttng_ust_is_signed_type(__typeof__(_value)), \ |
| 28 | .value = lttng_ust_is_signed_type(__typeof__(_value)) ? \ |
| 29 | (long long) (_value) : (_value), \ |
| 30 | }, \ |
| 31 | .string = (_string), \ |
| 32 | }), |
| 33 | |
| 34 | static const struct lttng_ust_enum_entry *dt_enum[_NR_LTTNG_UST_DYNAMIC_TYPES] = { |
| 35 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = lttng_ust_field_enum_value("_none", 0) |
| 36 | [LTTNG_UST_DYNAMIC_TYPE_S8] = lttng_ust_field_enum_value("_int8", 1) |
| 37 | [LTTNG_UST_DYNAMIC_TYPE_S16] = lttng_ust_field_enum_value("_int16", 2) |
| 38 | [LTTNG_UST_DYNAMIC_TYPE_S32] = lttng_ust_field_enum_value("_int32", 3) |
| 39 | [LTTNG_UST_DYNAMIC_TYPE_S64] = lttng_ust_field_enum_value("_int64", 4) |
| 40 | [LTTNG_UST_DYNAMIC_TYPE_U8] = lttng_ust_field_enum_value("_uint8", 5) |
| 41 | [LTTNG_UST_DYNAMIC_TYPE_U16] = lttng_ust_field_enum_value("_uint16", 6) |
| 42 | [LTTNG_UST_DYNAMIC_TYPE_U32] = lttng_ust_field_enum_value("_uint32", 7) |
| 43 | [LTTNG_UST_DYNAMIC_TYPE_U64] = lttng_ust_field_enum_value("_uint64", 8) |
| 44 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = lttng_ust_field_enum_value("_float", 9) |
| 45 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = lttng_ust_field_enum_value("_double", 10) |
| 46 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = lttng_ust_field_enum_value("_string", 11) |
| 47 | }; |
| 48 | |
| 49 | static struct lttng_ust_enum_desc dt_enum_desc = { |
| 50 | .name = "dynamic_type_enum", |
| 51 | .entries = dt_enum, |
| 52 | .nr_entries = LTTNG_ARRAY_SIZE(dt_enum), |
| 53 | }; |
| 54 | |
| 55 | const struct lttng_ust_event_field *dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = { |
| 56 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 57 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 58 | .name = "none", |
| 59 | .type = (struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(struct lttng_ust_type_struct, { |
| 60 | .parent = { |
| 61 | .type = lttng_ust_type_struct, |
| 62 | }, |
| 63 | .struct_size = sizeof(struct lttng_ust_type_struct), |
| 64 | .nr_fields = 0, /* empty struct */ |
| 65 | .alignment = 0, |
| 66 | }), |
| 67 | .nowrite = 0, |
| 68 | }), |
| 69 | [LTTNG_UST_DYNAMIC_TYPE_S8] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 70 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 71 | .name = "int8", |
| 72 | .type = lttng_ust_type_integer_define(int8_t, LTTNG_UST_BYTE_ORDER, 10), |
| 73 | .nowrite = 0, |
| 74 | }), |
| 75 | [LTTNG_UST_DYNAMIC_TYPE_S16] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 76 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 77 | .name = "int16", |
| 78 | .type = lttng_ust_type_integer_define(int16_t, LTTNG_UST_BYTE_ORDER, 10), |
| 79 | .nowrite = 0, |
| 80 | }), |
| 81 | [LTTNG_UST_DYNAMIC_TYPE_S32] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 82 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 83 | .name = "int32", |
| 84 | .type = lttng_ust_type_integer_define(int32_t, LTTNG_UST_BYTE_ORDER, 10), |
| 85 | .nowrite = 0, |
| 86 | }), |
| 87 | [LTTNG_UST_DYNAMIC_TYPE_S64] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 88 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 89 | .name = "int64", |
| 90 | .type = lttng_ust_type_integer_define(int64_t, LTTNG_UST_BYTE_ORDER, 10), |
| 91 | .nowrite = 0, |
| 92 | }), |
| 93 | [LTTNG_UST_DYNAMIC_TYPE_U8] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 94 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 95 | .name = "uint8", |
| 96 | .type = lttng_ust_type_integer_define(uint8_t, LTTNG_UST_BYTE_ORDER, 10), |
| 97 | .nowrite = 0, |
| 98 | }), |
| 99 | [LTTNG_UST_DYNAMIC_TYPE_U16] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 100 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 101 | .name = "uint16", |
| 102 | .type = lttng_ust_type_integer_define(uint16_t, LTTNG_UST_BYTE_ORDER, 10), |
| 103 | .nowrite = 0, |
| 104 | }), |
| 105 | [LTTNG_UST_DYNAMIC_TYPE_U32] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 106 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 107 | .name = "uint32", |
| 108 | .type = lttng_ust_type_integer_define(uint32_t, LTTNG_UST_BYTE_ORDER, 10), |
| 109 | .nowrite = 0, |
| 110 | }), |
| 111 | [LTTNG_UST_DYNAMIC_TYPE_U64] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 112 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 113 | .name = "uint64", |
| 114 | .type = lttng_ust_type_integer_define(uint64_t, LTTNG_UST_BYTE_ORDER, 10), |
| 115 | .nowrite = 0, |
| 116 | }), |
| 117 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 118 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 119 | .name = "float", |
| 120 | .type = lttng_ust_type_float_define(float), |
| 121 | .nowrite = 0, |
| 122 | }), |
| 123 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 124 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 125 | .name = "double", |
| 126 | .type = lttng_ust_type_float_define(double), |
| 127 | .nowrite = 0, |
| 128 | }), |
| 129 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = LTTNG_UST_COMPOUND_LITERAL(const struct lttng_ust_event_field, { |
| 130 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 131 | .name = "string", |
| 132 | .type = (struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(struct lttng_ust_type_string, { |
| 133 | .parent = { |
| 134 | .type = lttng_ust_type_string, |
| 135 | }, |
| 136 | .struct_size = sizeof(struct lttng_ust_type_string), |
| 137 | .encoding = lttng_ust_string_encoding_UTF8, |
| 138 | }), |
| 139 | .nowrite = 0, |
| 140 | }), |
| 141 | }; |
| 142 | |
| 143 | static const struct lttng_ust_event_field dt_enum_field = { |
| 144 | .struct_size = sizeof(struct lttng_ust_event_field), |
| 145 | .name = NULL, |
| 146 | .type = (struct lttng_ust_type_common *) LTTNG_UST_COMPOUND_LITERAL(struct lttng_ust_type_enum, { |
| 147 | .parent = { |
| 148 | .type = lttng_ust_type_enum, |
| 149 | }, |
| 150 | .struct_size = sizeof(struct lttng_ust_type_enum), |
| 151 | .desc = &dt_enum_desc, |
| 152 | .container_type = lttng_ust_type_integer_define(char, LTTNG_UST_BYTE_ORDER, 10), |
| 153 | }), |
| 154 | .nowrite = 0, |
| 155 | }; |
| 156 | |
| 157 | const struct lttng_ust_event_field *lttng_ust_dynamic_type_field(int64_t value) |
| 158 | { |
| 159 | if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES || value < 0) |
| 160 | return NULL; |
| 161 | return dt_var_fields[value]; |
| 162 | } |
| 163 | |
| 164 | int lttng_ust_dynamic_type_choices(size_t *nr_choices, const struct lttng_ust_event_field * const **choices) |
| 165 | { |
| 166 | *nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES; |
| 167 | *choices = dt_var_fields; |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | const struct lttng_ust_event_field *lttng_ust_dynamic_type_tag_field(void) |
| 172 | { |
| 173 | return &dt_enum_field; |
| 174 | } |