| 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 <helper.h> |
| 16 | #include <lttng/ust-dynamic-type.h> |
| 17 | |
| 18 | #define ctf_enum_value(_string, _value) \ |
| 19 | { \ |
| 20 | .start = { \ |
| 21 | .signedness = lttng_is_signed_type(__typeof__(_value)), \ |
| 22 | .value = lttng_is_signed_type(__typeof__(_value)) ? \ |
| 23 | (long long) (_value) : (_value), \ |
| 24 | }, \ |
| 25 | .end = { \ |
| 26 | .signedness = lttng_is_signed_type(__typeof__(_value)), \ |
| 27 | .value = lttng_is_signed_type(__typeof__(_value)) ? \ |
| 28 | (long long) (_value) : (_value), \ |
| 29 | }, \ |
| 30 | .string = (_string), \ |
| 31 | }, |
| 32 | |
| 33 | static const struct lttng_enum_entry dt_enum[_NR_LTTNG_UST_DYNAMIC_TYPES] = { |
| 34 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = ctf_enum_value("_none", 0) |
| 35 | [LTTNG_UST_DYNAMIC_TYPE_S8] = ctf_enum_value("_int8", 1) |
| 36 | [LTTNG_UST_DYNAMIC_TYPE_S16] = ctf_enum_value("_int16", 2) |
| 37 | [LTTNG_UST_DYNAMIC_TYPE_S32] = ctf_enum_value("_int32", 3) |
| 38 | [LTTNG_UST_DYNAMIC_TYPE_S64] = ctf_enum_value("_int64", 4) |
| 39 | [LTTNG_UST_DYNAMIC_TYPE_U8] = ctf_enum_value("_uint8", 5) |
| 40 | [LTTNG_UST_DYNAMIC_TYPE_U16] = ctf_enum_value("_uint16", 6) |
| 41 | [LTTNG_UST_DYNAMIC_TYPE_U32] = ctf_enum_value("_uint32", 7) |
| 42 | [LTTNG_UST_DYNAMIC_TYPE_U64] = ctf_enum_value("_uint64", 8) |
| 43 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = ctf_enum_value("_float", 9) |
| 44 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = ctf_enum_value("_double", 10) |
| 45 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = ctf_enum_value("_string", 11) |
| 46 | }; |
| 47 | |
| 48 | static const struct lttng_enum_desc dt_enum_desc = { |
| 49 | .name = "dynamic_type_enum", |
| 50 | .entries = dt_enum, |
| 51 | .nr_entries = LTTNG_ARRAY_SIZE(dt_enum), |
| 52 | }; |
| 53 | |
| 54 | const struct lttng_event_field dt_var_fields[_NR_LTTNG_UST_DYNAMIC_TYPES] = { |
| 55 | [LTTNG_UST_DYNAMIC_TYPE_NONE] = { |
| 56 | .name = "none", |
| 57 | .type = { |
| 58 | .atype = atype_struct_nestable, |
| 59 | .u.struct_nestable.nr_fields = 0, /* empty struct. */ |
| 60 | .u.struct_nestable.alignment = 0, |
| 61 | }, |
| 62 | .nowrite = 0, |
| 63 | }, |
| 64 | [LTTNG_UST_DYNAMIC_TYPE_S8] = { |
| 65 | .name = "int8", |
| 66 | .type = __type_integer(int8_t, BYTE_ORDER, 10, none), |
| 67 | .nowrite = 0, |
| 68 | }, |
| 69 | [LTTNG_UST_DYNAMIC_TYPE_S16] = { |
| 70 | .name = "int16", |
| 71 | .type = __type_integer(int16_t, BYTE_ORDER, 10, none), |
| 72 | .nowrite = 0, |
| 73 | }, |
| 74 | [LTTNG_UST_DYNAMIC_TYPE_S32] = { |
| 75 | .name = "int32", |
| 76 | .type = __type_integer(int32_t, BYTE_ORDER, 10, none), |
| 77 | .nowrite = 0, |
| 78 | }, |
| 79 | [LTTNG_UST_DYNAMIC_TYPE_S64] = { |
| 80 | .name = "int64", |
| 81 | .type = __type_integer(int64_t, BYTE_ORDER, 10, none), |
| 82 | .nowrite = 0, |
| 83 | }, |
| 84 | [LTTNG_UST_DYNAMIC_TYPE_U8] = { |
| 85 | .name = "uint8", |
| 86 | .type = __type_integer(uint8_t, BYTE_ORDER, 10, none), |
| 87 | .nowrite = 0, |
| 88 | }, |
| 89 | [LTTNG_UST_DYNAMIC_TYPE_U16] = { |
| 90 | .name = "uint16", |
| 91 | .type = __type_integer(uint16_t, BYTE_ORDER, 10, none), |
| 92 | .nowrite = 0, |
| 93 | }, |
| 94 | [LTTNG_UST_DYNAMIC_TYPE_U32] = { |
| 95 | .name = "uint32", |
| 96 | .type = __type_integer(uint32_t, BYTE_ORDER, 10, none), |
| 97 | .nowrite = 0, |
| 98 | }, |
| 99 | [LTTNG_UST_DYNAMIC_TYPE_U64] = { |
| 100 | .name = "uint64", |
| 101 | .type = __type_integer(uint64_t, BYTE_ORDER, 10, none), |
| 102 | .nowrite = 0, |
| 103 | }, |
| 104 | [LTTNG_UST_DYNAMIC_TYPE_FLOAT] = { |
| 105 | .name = "float", |
| 106 | .type = __type_float(float), |
| 107 | .nowrite = 0, |
| 108 | }, |
| 109 | [LTTNG_UST_DYNAMIC_TYPE_DOUBLE] = { |
| 110 | .name = "double", |
| 111 | .type = __type_float(double), |
| 112 | .nowrite = 0, |
| 113 | }, |
| 114 | [LTTNG_UST_DYNAMIC_TYPE_STRING] = { |
| 115 | .name = "string", |
| 116 | .type = { |
| 117 | .atype = atype_string, |
| 118 | .u.string.encoding = lttng_encode_UTF8, |
| 119 | }, |
| 120 | .nowrite = 0, |
| 121 | }, |
| 122 | }; |
| 123 | |
| 124 | static const struct lttng_event_field dt_enum_field = { |
| 125 | .name = NULL, |
| 126 | .type.atype = atype_enum_nestable, |
| 127 | .type.u.enum_nestable.desc = &dt_enum_desc, |
| 128 | .type.u.enum_nestable.container_type = |
| 129 | __LTTNG_COMPOUND_LITERAL(struct lttng_type, |
| 130 | __type_integer(char, BYTE_ORDER, 10, none)), |
| 131 | .nowrite = 0, |
| 132 | }; |
| 133 | |
| 134 | const struct lttng_event_field *lttng_ust_dynamic_type_field(int64_t value) |
| 135 | { |
| 136 | if (value >= _NR_LTTNG_UST_DYNAMIC_TYPES || value < 0) |
| 137 | return NULL; |
| 138 | return &dt_var_fields[value]; |
| 139 | } |
| 140 | |
| 141 | int lttng_ust_dynamic_type_choices(size_t *nr_choices, const struct lttng_event_field **choices) |
| 142 | { |
| 143 | *nr_choices = _NR_LTTNG_UST_DYNAMIC_TYPES; |
| 144 | *choices = dt_var_fields; |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | const struct lttng_event_field *lttng_ust_dynamic_type_tag_field(void) |
| 149 | { |
| 150 | return &dt_enum_field; |
| 151 | } |