Move to kernel style SPDX license identifiers
[babeltrace.git] / src / plugins / ctf / common / metadata / visitor-generate-ir.c
index 09edde35ef228b5a1eeb277349b376dd2a9c2398..cfb577053cb2e351d5c57784a30f0046cf9f37d0 100644 (file)
@@ -1,35 +1,16 @@
 /*
- * ctf-visitor-generate-ir.c
+ * SPDX-License-Identifier: MIT
  *
- * Common Trace Format metadata visitor (generates CTF IR objects).
- *
- * Based on older ctf-visitor-generate-io-struct.c.
- *
- * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright 2015-2018 - Philippe Proulx <philippe.proulx@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * Copyright 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2015-2018 Philippe Proulx <philippe.proulx@efficios.com>
  *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * Common Trace Format metadata visitor (generates CTF IR objects).
  */
 
-#define BT_LOG_OUTPUT_LEVEL (ctx->log_level)
+#define BT_COMP_LOG_SELF_COMP (ctx->log_cfg.self_comp)
+#define BT_LOG_OUTPUT_LEVEL (ctx->log_cfg.log_level)
 #define BT_LOG_TAG "PLUGIN/CTF/META/IR-VISITOR"
-#include "logging/log.h"
+#include "logging/comp-logging.h"
 
 #include <stdio.h>
 #include <unistd.h>
 #include <inttypes.h>
 #include <errno.h>
 #include "common/common.h"
-#include "compat/uuid.h"
+#include "common/uuid.h"
 #include "compat/endian.h"
 #include <babeltrace2/babeltrace.h>
 
 #include "logging.h"
 #include "scanner.h"
-#include "parser.h"
 #include "ast.h"
 #include "decoder.h"
 #include "ctf-meta.h"
@@ -68,7 +48,7 @@
        do {                                                            \
                ret = ctx_push_scope(ctx);                              \
                if (ret) {                                              \
-                       BT_LOGE_STR("Cannot push scope.");              \
+                       BT_COMP_LOGE_STR("Cannot push scope.");         \
                        goto error;                                     \
                }                                                       \
        } while (0)
@@ -160,19 +140,19 @@ enum loglevel {
 #define _BT_LIST_FIRST_ENTRY(_ptr, _class, _member)                    \
        bt_list_entry((_ptr)->next, _class, _member)
 
-#define _BT_LOGE_DUP_ATTR(_node, _attr, _entity)                       \
-       _BT_LOGE_LINENO((_node)->lineno,                                \
+#define _BT_COMP_LOGE_DUP_ATTR(_node, _attr, _entity)                  \
+       _BT_COMP_LOGE_LINENO((_node)->lineno,                           \
                "Duplicate attribute in %s: attr-name=\"%s\"",          \
                _entity, _attr)
 
-#define _BT_LOGE_NODE(_node, _msg, args...)                            \
-       _BT_LOGE_LINENO((_node)->lineno, _msg, ## args)
+#define _BT_COMP_LOGE_NODE(_node, _msg, args...)                               \
+       _BT_COMP_LOGE_LINENO((_node)->lineno, _msg, ## args)
 
-#define _BT_LOGW_NODE(_node, _msg, args...)                            \
-       _BT_LOGW_LINENO((_node)->lineno, _msg, ## args)
+#define _BT_COMP_LOGW_NODE(_node, _msg, args...)                               \
+       _BT_COMP_LOGW_LINENO((_node)->lineno, _msg, ## args)
 
-#define _BT_LOGV_NODE(_node, _msg, args...)                            \
-       _BT_LOGV_LINENO((_node)->lineno, _msg, ## args)
+#define _BT_COMP_LOGT_NODE(_node, _msg, args...)                               \
+       _BT_COMP_LOGT_LINENO((_node)->lineno, _msg, ## args)
 
 /*
  * Declaration scope of a visitor context. This represents a TSDL
@@ -195,8 +175,8 @@ struct ctx_decl_scope {
  * Visitor context (private).
  */
 struct ctx {
-       bt_logging_level log_level;
-       bt_self_component_source *self_comp;
+       struct meta_log_config log_cfg;
+
        /* Trace IR trace class being filled (owned by this) */
        bt_trace_class *trace_class;
 
@@ -235,7 +215,7 @@ struct ctx_decl_scope *ctx_decl_scope_create(struct ctx *ctx,
 
        scope = g_new(struct ctx_decl_scope, 1);
        if (!scope) {
-               BT_LOGE_STR("Failed to allocate one declaration scope.");
+               BT_COMP_LOGE_STR("Failed to allocate one declaration scope.");
                goto end;
        }
 
@@ -285,7 +265,7 @@ GQuark get_prefixed_named_quark(struct ctx *ctx, char prefix, const char *name)
        /* Prefix character + original string + '\0' */
        char *prname = g_new(char, strlen(name) + 2);
        if (!prname) {
-               BT_LOGE_STR("Failed to allocate a string.");
+               BT_COMP_LOGE_STR("Failed to allocate a string.");
                goto end;
        }
 
@@ -578,8 +558,7 @@ end:
  * @returns    New visitor context, or NULL on error
  */
 static
-struct ctx *ctx_create(bt_self_component_source *self_comp,
-               const struct ctf_metadata_decoder_config *decoder_config)
+struct ctx *ctx_create(const struct ctf_metadata_decoder_config *decoder_config)
 {
        struct ctx *ctx = NULL;
 
@@ -587,34 +566,34 @@ struct ctx *ctx_create(bt_self_component_source *self_comp,
 
        ctx = g_new0(struct ctx, 1);
        if (!ctx) {
-               BT_LOG_WRITE_CUR_LVL(BT_LOG_ERROR, decoder_config->log_level,
-                       BT_LOG_TAG,
+               BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, decoder_config->log_level,
+                       decoder_config->self_comp,
                        "Failed to allocate one visitor context.");
                goto error;
        }
 
-       ctx->log_level = decoder_config->log_level;
+       ctx->log_cfg.log_level = decoder_config->log_level;
+       ctx->log_cfg.self_comp = decoder_config->self_comp;
 
-       if (self_comp) {
+       if (decoder_config->self_comp) {
                ctx->trace_class = bt_trace_class_create(
-                       bt_self_component_source_as_self_component(self_comp));
+                       decoder_config->self_comp);
                if (!ctx->trace_class) {
-                       BT_LOGE_STR("Cannot create empty trace class.");
+                       BT_COMP_LOGE_STR("Cannot create empty trace class.");
                        goto error;
                }
-               ctx->self_comp = self_comp;
        }
 
        ctx->ctf_tc = ctf_trace_class_create();
        if (!ctx->ctf_tc) {
-               BT_LOGE_STR("Cannot create CTF trace class.");
+               BT_COMP_LOGE_STR("Cannot create CTF trace class.");
                goto error;
        }
 
        /* Root declaration scope */
        ctx->current_scope = ctx_decl_scope_create(ctx, NULL);
        if (!ctx->current_scope) {
-               BT_LOGE_STR("Cannot create declaration scope.");
+               BT_COMP_LOGE_STR("Cannot create declaration scope.");
                goto error;
        }
 
@@ -645,7 +624,7 @@ int ctx_push_scope(struct ctx *ctx)
        BT_ASSERT(ctx);
        new_scope = ctx_decl_scope_create(ctx, ctx->current_scope);
        if (!new_scope) {
-               BT_LOGE_STR("Cannot create declaration scope.");
+               BT_COMP_LOGE_STR("Cannot create declaration scope.");
                ret = -ENOMEM;
                goto end;
        }
@@ -679,61 +658,6 @@ static
 int visit_field_class_specifier_list(struct ctx *ctx, struct ctf_node *ts_list,
                struct ctf_field_class **decl);
 
-static
-char *remove_underscores_from_field_ref(struct ctx *ctx, const char *field_ref)
-{
-       const char *in_ch;
-       char *out_ch;
-       char *ret;
-       enum {
-               UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE,
-               UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE,
-       } state = UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE;
-
-       BT_ASSERT(field_ref);
-       ret = calloc(strlen(field_ref) + 1, 1);
-       if (!ret) {
-               BT_LOGE("Failed to allocate a string: size=%zu",
-                       strlen(field_ref) + 1);
-               goto end;
-       }
-
-       in_ch = field_ref;
-       out_ch = ret;
-
-       while (*in_ch != '\0') {
-               switch (*in_ch) {
-               case ' ':
-               case '\t':
-                       /* Remove whitespace */
-                       in_ch++;
-                       continue;
-               case '_':
-                       if (state == UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE) {
-                               in_ch++;
-                               state = UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE;
-                               continue;
-                       }
-
-                       goto copy;
-               case '.':
-                       state = UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE;
-                       goto copy;
-               default:
-                       state = UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE;
-                       goto copy;
-               }
-
-copy:
-               *out_ch = *in_ch;
-               in_ch++;
-               out_ch++;
-       }
-
-end:
-       return ret;
-}
-
 static
 int is_unary_string(struct bt_list_head *head)
 {
@@ -753,59 +677,6 @@ int is_unary_string(struct bt_list_head *head)
        return ret;
 }
 
-static
-char *concatenate_unary_strings(struct bt_list_head *head)
-{
-       int i = 0;
-       GString *str;
-       struct ctf_node *node;
-
-       str = g_string_new(NULL);
-       BT_ASSERT(str);
-
-       bt_list_for_each_entry(node, head, siblings) {
-               char *src_string;
-
-               if (
-                       node->type != NODE_UNARY_EXPRESSION ||
-                       node->u.unary_expression.type != UNARY_STRING ||
-                       !(
-                               (
-                                       node->u.unary_expression.link !=
-                                       UNARY_LINK_UNKNOWN
-                               ) ^ (i == 0)
-                       )
-               ) {
-                       goto error;
-               }
-
-               switch (node->u.unary_expression.link) {
-               case UNARY_DOTLINK:
-                       g_string_append(str, ".");
-                       break;
-               case UNARY_ARROWLINK:
-                       g_string_append(str, "->");
-                       break;
-               case UNARY_DOTDOTDOT:
-                       g_string_append(str, "...");
-                       break;
-               default:
-                       break;
-               }
-
-               src_string = node->u.unary_expression.u.string;
-               g_string_append(str, src_string);
-               i++;
-       }
-
-       /* Destroys the container, returns the underlying string */
-       return g_string_free(str, FALSE);
-
-error:
-       /* This always returns NULL */
-       return g_string_free(str, TRUE);
-}
-
 static
 const char *get_map_clock_name_value(struct bt_list_head *head)
 {
@@ -906,7 +777,7 @@ int get_unary_unsigned(struct ctx *ctx, struct bt_list_head *head,
                        uexpr_type != UNARY_UNSIGNED_CONSTANT ||
                        uexpr_link != UNARY_LINK_UNKNOWN || i != 0;
                if (cond) {
-                       _BT_LOGE_NODE(node, "Invalid constant unsigned integer.");
+                       _BT_COMP_LOGE_NODE(node, "Invalid constant unsigned integer.");
                        ret = -EINVAL;
                        goto end;
                }
@@ -979,36 +850,10 @@ end:
 
 static
 int get_unary_uuid(struct ctx *ctx, struct bt_list_head *head,
-               unsigned char *uuid)
+               bt_uuid_t uuid)
 {
-       int i = 0;
-       int ret = 0;
-       struct ctf_node *node;
-
-       bt_list_for_each_entry(node, head, siblings) {
-               int uexpr_type = node->u.unary_expression.type;
-               int uexpr_link = node->u.unary_expression.link;
-               const char *src_string;
-
-               if (node->type != NODE_UNARY_EXPRESSION ||
-                               uexpr_type != UNARY_STRING ||
-                               uexpr_link != UNARY_LINK_UNKNOWN ||
-                               i != 0) {
-                       ret = -EINVAL;
-                       goto end;
-               }
-
-               src_string = node->u.unary_expression.u.string;
-               ret = bt_uuid_parse(src_string, uuid);
-               if (ret) {
-                       _BT_LOGE_NODE(node,
-                               "Cannot parse UUID: uuid=\"%s\"", src_string);
-                       goto end;
-               }
-       }
-
-end:
-       return ret;
+       return ctf_ast_get_unary_uuid(head, uuid, ctx->log_cfg.log_level,
+               ctx->log_cfg.self_comp);
 }
 
 static
@@ -1017,7 +862,7 @@ int get_boolean(struct ctx *ctx, struct ctf_node *unary_expr)
        int ret = 0;
 
        if (unary_expr->type != NODE_UNARY_EXPRESSION) {
-               _BT_LOGE_NODE(unary_expr,
+               _BT_COMP_LOGE_NODE(unary_expr,
                        "Expecting unary expression: node-type=%d",
                        unary_expr->type);
                ret = -EINVAL;
@@ -1035,12 +880,12 @@ int get_boolean(struct ctx *ctx, struct ctf_node *unary_expr)
        {
                const char *str = unary_expr->u.unary_expression.u.string;
 
-               if (!strcmp(str, "true") || !strcmp(str, "TRUE")) {
+               if (strcmp(str, "true") == 0 || strcmp(str, "TRUE") == 0) {
                        ret = TRUE;
-               } else if (!strcmp(str, "false") || !strcmp(str, "FALSE")) {
+               } else if (strcmp(str, "false") == 0 || strcmp(str, "FALSE") == 0) {
                        ret = FALSE;
                } else {
-                       _BT_LOGE_NODE(unary_expr,
+                       _BT_COMP_LOGE_NODE(unary_expr,
                                "Unexpected boolean value: value=\"%s\"", str);
                        ret = -EINVAL;
                        goto end;
@@ -1048,7 +893,7 @@ int get_boolean(struct ctx *ctx, struct ctf_node *unary_expr)
                break;
        }
        default:
-               _BT_LOGE_NODE(unary_expr,
+               _BT_COMP_LOGE_NODE(unary_expr,
                        "Unexpected unary expression type: node-type=%d",
                        unary_expr->u.unary_expression.type);
                ret = -EINVAL;
@@ -1064,24 +909,24 @@ enum ctf_byte_order byte_order_from_unary_expr(struct ctx *ctx,
                struct ctf_node *unary_expr)
 {
        const char *str;
-       enum ctf_byte_order bo = -1;
+       enum ctf_byte_order bo = CTF_BYTE_ORDER_UNKNOWN;
 
        if (unary_expr->u.unary_expression.type != UNARY_STRING) {
-               _BT_LOGE_NODE(unary_expr,
+               _BT_COMP_LOGE_NODE(unary_expr,
                        "\"byte_order\" attribute: expecting `be`, `le`, `network`, or `native`.");
                goto end;
        }
 
        str = unary_expr->u.unary_expression.u.string;
 
-       if (!strcmp(str, "be") || !strcmp(str, "network")) {
+       if (strcmp(str, "be") == 0 || strcmp(str, "network") == 0) {
                bo = CTF_BYTE_ORDER_BIG;
-       } else if (!strcmp(str, "le")) {
+       } else if (strcmp(str, "le") == 0) {
                bo = CTF_BYTE_ORDER_LITTLE;
-       } else if (!strcmp(str, "native")) {
+       } else if (strcmp(str, "native") == 0) {
                bo = CTF_BYTE_ORDER_DEFAULT;
        } else {
-               _BT_LOGE_NODE(unary_expr,
+               _BT_COMP_LOGE_NODE(unary_expr,
                        "Unexpected \"byte_order\" attribute value: "
                        "expecting `be`, `le`, `network`, or `native`: value=\"%s\"",
                        str);
@@ -1118,7 +963,7 @@ int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
        int ret = 0;
 
        if (cls_specifier->type != NODE_TYPE_SPECIFIER) {
-               _BT_LOGE_NODE(cls_specifier,
+               _BT_COMP_LOGE_NODE(cls_specifier,
                        "Unexpected node type: node-type=%d",
                        cls_specifier->type);
                ret = -EINVAL;
@@ -1176,7 +1021,7 @@ int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
                struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
 
                if (!node->u._struct.name) {
-                       _BT_LOGE_NODE(node, "Unexpected empty structure field class name.");
+                       _BT_COMP_LOGE_NODE(node, "Unexpected empty structure field class name.");
                        ret = -EINVAL;
                        goto end;
                }
@@ -1190,7 +1035,7 @@ int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
                struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
 
                if (!node->u.variant.name) {
-                       _BT_LOGE_NODE(node, "Unexpected empty variant field class name.");
+                       _BT_COMP_LOGE_NODE(node, "Unexpected empty variant field class name.");
                        ret = -EINVAL;
                        goto end;
                }
@@ -1204,7 +1049,7 @@ int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
                struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
 
                if (!node->u._enum.enum_id) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Unexpected empty enumeration field class (`enum`) name.");
                        ret = -EINVAL;
                        goto end;
@@ -1218,7 +1063,7 @@ int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
        case TYPESPEC_INTEGER:
        case TYPESPEC_STRING:
        default:
-               _BT_LOGE_NODE(cls_specifier->u.field_class_specifier.node,
+               _BT_COMP_LOGE_NODE(cls_specifier->u.field_class_specifier.node,
                        "Unexpected field class specifier type: %d",
                        cls_specifier->u.field_class_specifier.type);
                ret = -EINVAL;
@@ -1310,7 +1155,7 @@ int visit_field_class_declarator(struct ctx *ctx,
        if (node_field_class_declarator) {
                if (node_field_class_declarator->u.field_class_declarator.type ==
                                TYPEDEC_UNKNOWN) {
-                       _BT_LOGE_NODE(node_field_class_declarator,
+                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                "Unexpected field class declarator type: type=%d",
                                node_field_class_declarator->u.field_class_declarator.type);
                        ret = -EINVAL;
@@ -1320,7 +1165,7 @@ int visit_field_class_declarator(struct ctx *ctx,
                /* TODO: GCC bitfields not supported yet */
                if (node_field_class_declarator->u.field_class_declarator.bitfield_len !=
                                NULL) {
-                       _BT_LOGE_NODE(node_field_class_declarator,
+                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                "GCC bitfields are not supported as of this version.");
                        ret = -EPERM;
                        goto error;
@@ -1347,7 +1192,7 @@ int visit_field_class_declarator(struct ctx *ctx,
                                        ctx->current_scope,
                                        g_quark_to_string(qalias), -1, true);
                        if (!nested_decl) {
-                               _BT_LOGE_NODE(node_field_class_declarator,
+                               _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                        "Cannot find class alias: name=\"%s\"",
                                        g_quark_to_string(qalias));
                                ret = -EINVAL;
@@ -1385,10 +1230,6 @@ int visit_field_class_declarator(struct ctx *ctx,
                        const char *id =
                                node_field_class_declarator->u.field_class_declarator.u.id;
 
-                       if (id[0] == '_') {
-                               id++;
-                       }
-
                        *field_name = g_quark_from_string(id);
                } else {
                        *field_name = 0;
@@ -1407,7 +1248,7 @@ int visit_field_class_declarator(struct ctx *ctx,
 
                /* Create array/sequence, pass nested_decl as child */
                if (bt_list_empty(length)) {
-                       _BT_LOGE_NODE(node_field_class_declarator,
+                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                "Expecting length field reference or value.");
                        ret = -EINVAL;
                        goto error;
@@ -1415,7 +1256,7 @@ int visit_field_class_declarator(struct ctx *ctx,
 
                first = _BT_LIST_FIRST_ENTRY(length, struct ctf_node, siblings);
                if (first->type != NODE_UNARY_EXPRESSION) {
-                       _BT_LOGE_NODE(first,
+                       _BT_COMP_LOGE_NODE(first,
                                "Unexpected node type: node-type=%d",
                                first->type);
                        ret = -EINVAL;
@@ -1440,10 +1281,10 @@ int visit_field_class_declarator(struct ctx *ctx,
                {
                        /* Lookup unsigned integer definition, create seq. */
                        struct ctf_field_class_sequence *seq_decl = NULL;
-                       char *length_name = concatenate_unary_strings(length);
+                       char *length_name = ctf_ast_concatenate_unary_strings(length);
 
                        if (!length_name) {
-                               _BT_LOGE_NODE(node_field_class_declarator,
+                               _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                        "Cannot concatenate unary strings.");
                                ret = -EINVAL;
                                goto error;
@@ -1458,7 +1299,7 @@ int visit_field_class_declarator(struct ctx *ctx,
                                struct ctf_field_class_array *array_decl;
 
                                if (!env_entry) {
-                                       _BT_LOGE_NODE(node_field_class_declarator,
+                                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                                "Cannot find environment entry: "
                                                "name=\"%s\"", env_entry_name);
                                        ret = -EINVAL;
@@ -1466,7 +1307,7 @@ int visit_field_class_declarator(struct ctx *ctx,
                                }
 
                                if (env_entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT) {
-                                       _BT_LOGE_NODE(node_field_class_declarator,
+                                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                                "Wrong environment entry type "
                                                "(expecting integer): "
                                                "name=\"%s\"", env_entry_name);
@@ -1475,7 +1316,7 @@ int visit_field_class_declarator(struct ctx *ctx,
                                }
 
                                if (env_entry->value.i < 0) {
-                                       _BT_LOGE_NODE(node_field_class_declarator,
+                                       _BT_COMP_LOGE_NODE(node_field_class_declarator,
                                                "Invalid, negative array length: "
                                                "env-entry-name=\"%s\", "
                                                "value=%" PRId64,
@@ -1493,24 +1334,12 @@ int visit_field_class_declarator(struct ctx *ctx,
                                nested_decl = NULL;
                                decl = (void *) array_decl;
                        } else {
-                               char *length_name_no_underscore =
-                                       remove_underscores_from_field_ref(ctx,
-                                               length_name);
-                               if (!length_name_no_underscore) {
-                                       /*
-                                        * remove_underscores_from_field_ref()
-                                        * logs errors
-                                        */
-                                       ret = -EINVAL;
-                                       goto error;
-                               }
                                seq_decl = ctf_field_class_sequence_create();
                                BT_ASSERT(seq_decl);
                                seq_decl->base.elem_fc = nested_decl;
                                nested_decl = NULL;
                                g_string_assign(seq_decl->length_ref,
-                                       length_name_no_underscore);
-                               free(length_name_no_underscore);
+                                       length_name);
                                decl = (void *) seq_decl;
                        }
 
@@ -1586,7 +1415,7 @@ int visit_struct_decl_field(struct ctx *ctx,
                        &qfield_name, iter, &field_decl, NULL);
                if (ret) {
                        BT_ASSERT(!field_decl);
-                       _BT_LOGE_NODE(cls_specifier_list,
+                       _BT_COMP_LOGE_NODE(cls_specifier_list,
                                "Cannot visit field class declarator: ret=%d", ret);
                        goto error;
                }
@@ -1597,7 +1426,7 @@ int visit_struct_decl_field(struct ctx *ctx,
                /* Check if field with same name already exists */
                if (ctf_field_class_struct_borrow_member_by_name(
                                struct_decl, field_name)) {
-                       _BT_LOGE_NODE(cls_specifier_list,
+                       _BT_COMP_LOGE_NODE(cls_specifier_list,
                                "Duplicate field in structure field class: "
                                "field-name=\"%s\"", field_name);
                        ret = -EINVAL;
@@ -1637,7 +1466,7 @@ int visit_variant_decl_field(struct ctx *ctx,
                        &qfield_name, iter, &field_decl, NULL);
                if (ret) {
                        BT_ASSERT(!field_decl);
-                       _BT_LOGE_NODE(cls_specifier_list,
+                       _BT_COMP_LOGE_NODE(cls_specifier_list,
                                "Cannot visit field class declarator: ret=%d", ret);
                        goto error;
                }
@@ -1648,7 +1477,7 @@ int visit_variant_decl_field(struct ctx *ctx,
                /* Check if field with same name already exists */
                if (ctf_field_class_variant_borrow_option_by_name(
                                variant_decl, field_name)) {
-                       _BT_LOGE_NODE(cls_specifier_list,
+                       _BT_COMP_LOGE_NODE(cls_specifier_list,
                                "Duplicate field in variant field class: "
                                "field-name=\"%s\"", field_name);
                        ret = -EINVAL;
@@ -1682,7 +1511,7 @@ int visit_field_class_def(struct ctx *ctx, struct ctf_node *cls_specifier_list,
                ret = visit_field_class_declarator(ctx, cls_specifier_list,
                        &qidentifier, iter, &class_decl, NULL);
                if (ret) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Cannot visit field class declarator: ret=%d", ret);
                        ret = -EINVAL;
                        goto end;
@@ -1694,7 +1523,7 @@ int visit_field_class_def(struct ctx *ctx, struct ctf_node *cls_specifier_list,
                                (void *) class_decl;
 
                        if (var_fc->tag_path.path->len == 0) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Type definition of untagged variant field class is not allowed.");
                                ret = -EPERM;
                                goto end;
@@ -1704,7 +1533,7 @@ int visit_field_class_def(struct ctx *ctx, struct ctf_node *cls_specifier_list,
                ret = ctx_decl_scope_register_alias(ctx, ctx->current_scope,
                        g_quark_to_string(qidentifier), class_decl);
                if (ret) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Cannot register field class alias: name=\"%s\"",
                                g_quark_to_string(qidentifier));
                        goto end;
@@ -1741,7 +1570,7 @@ int visit_field_class_alias(struct ctx *ctx, struct ctf_node *target,
                &qdummy_field_name, node, &class_decl, NULL);
        if (ret) {
                BT_ASSERT(!class_decl);
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Cannot visit field class declarator: ret=%d", ret);
                goto end;
        }
@@ -1751,7 +1580,7 @@ int visit_field_class_alias(struct ctx *ctx, struct ctf_node *target,
                struct ctf_field_class_variant *var_fc = (void *) class_decl;
 
                if (var_fc->tag_path.path->len == 0) {
-                       _BT_LOGE_NODE(target,
+                       _BT_COMP_LOGE_NODE(target,
                                "Type definition of untagged variant field class is not allowed.");
                        ret = -EPERM;
                        goto end;
@@ -1763,7 +1592,7 @@ int visit_field_class_alias(struct ctx *ctx, struct ctf_node *target,
         * abstract or not (if it has an identifier). Check it here.
         */
        if (qdummy_field_name != 0) {
-               _BT_LOGE_NODE(target,
+               _BT_COMP_LOGE_NODE(target,
                        "Expecting empty identifier: id=\"%s\"",
                        g_quark_to_string(qdummy_field_name));
                ret = -EINVAL;
@@ -1778,7 +1607,7 @@ int visit_field_class_alias(struct ctx *ctx, struct ctf_node *target,
        ret = ctx_decl_scope_register_alias(ctx, ctx->current_scope,
                g_quark_to_string(qalias), class_decl);
        if (ret) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Cannot register class alias: name=\"%s\"",
                        g_quark_to_string(qalias));
                goto end;
@@ -1802,7 +1631,7 @@ int visit_struct_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                        entry_node->u.field_class_def.field_class_specifier_list,
                        &entry_node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot add field class found in structure field class: ret=%d",
                                ret);
                        goto end;
@@ -1812,7 +1641,7 @@ int visit_struct_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = visit_field_class_alias(ctx, entry_node->u.field_class_alias.target,
                        entry_node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot add field class alias found in structure field class: ret=%d",
                                ret);
                        goto end;
@@ -1830,7 +1659,7 @@ int visit_struct_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                }
                break;
        default:
-               _BT_LOGE_NODE(entry_node,
+               _BT_COMP_LOGE_NODE(entry_node,
                        "Unexpected node type: node-type=%d", entry_node->type);
                ret = -EINVAL;
                goto end;
@@ -1852,7 +1681,7 @@ int visit_variant_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                        entry_node->u.field_class_def.field_class_specifier_list,
                        &entry_node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot add field class found in variant field class: ret=%d",
                                ret);
                        goto end;
@@ -1862,7 +1691,7 @@ int visit_variant_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = visit_field_class_alias(ctx, entry_node->u.field_class_alias.target,
                        entry_node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot add field class alias found in variant field class: ret=%d",
                                ret);
                        goto end;
@@ -1880,7 +1709,7 @@ int visit_variant_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                }
                break;
        default:
-               _BT_LOGE_NODE(entry_node,
+               _BT_COMP_LOGE_NODE(entry_node,
                        "Unexpected node type: node-type=%d",
                        entry_node->type);
                ret = -EINVAL;
@@ -1905,7 +1734,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
        /* For named struct (without body), lookup in declaration scope */
        if (!has_body) {
                if (!name) {
-                       BT_LOGE_STR("Bodyless structure field class: missing name.");
+                       BT_COMP_LOGE_STR("Bodyless structure field class: missing name.");
                        ret = -EPERM;
                        goto error;
                }
@@ -1913,7 +1742,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
                *struct_decl = ctx_decl_scope_lookup_struct(ctx, ctx->current_scope,
                        name, -1, true);
                if (!*struct_decl) {
-                       BT_LOGE("Cannot find structure field class: name=\"struct %s\"",
+                       BT_COMP_LOGE("Cannot find structure field class: name=\"struct %s\"",
                                name);
                        ret = -EINVAL;
                        goto error;
@@ -1925,7 +1754,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
                if (name) {
                        if (ctx_decl_scope_lookup_struct(ctx,
                                        ctx->current_scope, name, 1, false)) {
-                               BT_LOGE("Structure field class already declared in local scope: "
+                               BT_COMP_LOGE("Structure field class already declared in local scope: "
                                        "name=\"struct %s\"", name);
                                ret = -EINVAL;
                                goto error;
@@ -1936,7 +1765,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
                        ret = get_unary_unsigned(ctx, min_align,
                                &min_align_value);
                        if (ret) {
-                               BT_LOGE("Unexpected unary expression for structure field class's `align` attribute: "
+                               BT_COMP_LOGE("Unexpected unary expression for structure field class's `align` attribute: "
                                        "ret=%d", ret);
                                goto error;
                        }
@@ -1955,7 +1784,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
                        ret = visit_struct_decl_entry(ctx, entry_node,
                                *struct_decl);
                        if (ret) {
-                               _BT_LOGE_NODE(entry_node,
+                               _BT_COMP_LOGE_NODE(entry_node,
                                        "Cannot visit structure field class entry: "
                                        "ret=%d", ret);
                                ctx_pop_scope(ctx);
@@ -1969,7 +1798,7 @@ int visit_struct_decl(struct ctx *ctx, const char *name,
                        ret = ctx_decl_scope_register_struct(ctx,
                                ctx->current_scope, name, *struct_decl);
                        if (ret) {
-                               BT_LOGE("Cannot register structure field class in declaration scope: "
+                               BT_COMP_LOGE("Cannot register structure field class in declaration scope: "
                                        "name=\"struct %s\", ret=%d", name, ret);
                                goto error;
                        }
@@ -1998,7 +1827,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
        /* For named variant (without body), lookup in declaration scope */
        if (!has_body) {
                if (!name) {
-                       BT_LOGE_STR("Bodyless variant field class: missing name.");
+                       BT_COMP_LOGE_STR("Bodyless variant field class: missing name.");
                        ret = -EPERM;
                        goto error;
                }
@@ -2007,7 +1836,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
                        ctx_decl_scope_lookup_variant(ctx, ctx->current_scope,
                                name, -1, true);
                if (!untagged_variant_decl) {
-                       BT_LOGE("Cannot find variant field class: name=\"variant %s\"",
+                       BT_COMP_LOGE("Cannot find variant field class: name=\"variant %s\"",
                                name);
                        ret = -EINVAL;
                        goto error;
@@ -2018,7 +1847,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
                if (name) {
                        if (ctx_decl_scope_lookup_variant(ctx,
                                        ctx->current_scope, name, 1, false)) {
-                               BT_LOGE("Variant field class already declared in local scope: "
+                               BT_COMP_LOGE("Variant field class already declared in local scope: "
                                        "name=\"variant %s\"", name);
                                ret = -EINVAL;
                                goto error;
@@ -2033,7 +1862,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
                        ret = visit_variant_decl_entry(ctx, entry_node,
                                untagged_variant_decl);
                        if (ret) {
-                               _BT_LOGE_NODE(entry_node,
+                               _BT_COMP_LOGE_NODE(entry_node,
                                        "Cannot visit variant field class entry: "
                                        "ret=%d", ret);
                                ctx_pop_scope(ctx);
@@ -2048,7 +1877,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
                                ctx->current_scope, name,
                                untagged_variant_decl);
                        if (ret) {
-                               BT_LOGE("Cannot register variant field class in declaration scope: "
+                               BT_COMP_LOGE("Cannot register variant field class in declaration scope: "
                                        "name=\"variant %s\", ret=%d", name, ret);
                                goto error;
                        }
@@ -2067,17 +1896,7 @@ int visit_variant_decl(struct ctx *ctx, const char *name,
                 * At this point, we have a fresh untagged variant; nobody
                 * else owns it. Set its tag now.
                 */
-               char *tag_no_underscore =
-                       remove_underscores_from_field_ref(ctx, tag);
-
-               if (!tag_no_underscore) {
-                       /* remove_underscores_from_field_ref() logs errors */
-                       goto error;
-               }
-
-               g_string_assign(untagged_variant_decl->tag_ref,
-                       tag_no_underscore);
-               free(tag_no_underscore);
+               g_string_assign(untagged_variant_decl->tag_ref, tag);
                *variant_decl = untagged_variant_decl;
                untagged_variant_decl = NULL;
        }
@@ -2118,14 +1937,13 @@ int visit_enum_decl_entry(struct ctx *ctx, struct ctf_node *enumerator,
                .value.u = 0,
        };
        const char *label = enumerator->u.enumerator.id;
-       const char *effective_label = label;
        struct bt_list_head *values = &enumerator->u.enumerator.values;
 
        bt_list_for_each_entry(iter, values, siblings) {
                struct uori *target;
 
                if (iter->type != NODE_UNARY_EXPRESSION) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Wrong expression for enumeration field class label: "
                                "node-type=%d, label=\"%s\"", iter->type,
                                label);
@@ -2151,7 +1969,7 @@ int visit_enum_decl_entry(struct ctx *ctx, struct ctf_node *enumerator,
                                iter->u.unary_expression.u.unsigned_constant;
                        break;
                default:
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Invalid enumeration field class entry: "
                                "expecting constant signed or unsigned integer: "
                                "node-type=%d, label=\"%s\"",
@@ -2161,7 +1979,7 @@ int visit_enum_decl_entry(struct ctx *ctx, struct ctf_node *enumerator,
                }
 
                if (nr_vals > 1) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Invalid enumeration field class entry: label=\"%s\"",
                                label);
                        ret = -EINVAL;
@@ -2185,19 +2003,7 @@ int visit_enum_decl_entry(struct ctx *ctx, struct ctf_node *enumerator,
                last->value.u = end.value.u + 1;
        }
 
-       if (label[0] == '_') {
-               /*
-                * Strip the first underscore of any enumeration field
-                * class's label in case this enumeration FC is used as
-                * a variant FC tag later. The variant FC choice names
-                * could also start with `_`, in which case the prefix
-                * is removed, and it the resulting choice name needs to
-                * match tag labels.
-                */
-               effective_label = &label[1];
-       }
-
-       ctf_field_class_enum_append_mapping(enum_decl, effective_label,
+       ctf_field_class_enum_map_range(enum_decl, label,
                start.value.u, end.value.u);
        return 0;
 
@@ -2221,7 +2027,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
        /* For named enum (without body), lookup in declaration scope */
        if (!has_body) {
                if (!name) {
-                       BT_LOGE_STR("Bodyless enumeration field class: missing name.");
+                       BT_COMP_LOGE_STR("Bodyless enumeration field class: missing name.");
                        ret = -EPERM;
                        goto error;
                }
@@ -2229,7 +2035,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                *enum_decl = ctx_decl_scope_lookup_enum(ctx, ctx->current_scope,
                        name, -1, true);
                if (!*enum_decl) {
-                       BT_LOGE("Cannot find enumeration field class: "
+                       BT_COMP_LOGE("Cannot find enumeration field class: "
                                "name=\"enum %s\"", name);
                        ret = -EINVAL;
                        goto error;
@@ -2244,7 +2050,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                if (name) {
                        if (ctx_decl_scope_lookup_enum(ctx, ctx->current_scope,
                                        name, 1, false)) {
-                               BT_LOGE("Enumeration field class already declared in local scope: "
+                               BT_COMP_LOGE("Enumeration field class already declared in local scope: "
                                        "name=\"enum %s\"", name);
                                ret = -EINVAL;
                                goto error;
@@ -2255,7 +2061,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                        integer_decl = (void *) ctx_decl_scope_lookup_alias(ctx,
                                ctx->current_scope, "int", -1, true);
                        if (!integer_decl) {
-                               BT_LOGE_STR("Cannot find implicit `int` field class alias for enumeration field class.");
+                               BT_COMP_LOGE_STR("Cannot find implicit `int` field class alias for enumeration field class.");
                                ret = -EINVAL;
                                goto error;
                        }
@@ -2273,7 +2079,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                BT_ASSERT(integer_decl);
 
                if (integer_decl->base.base.type != CTF_FIELD_CLASS_TYPE_INT) {
-                       BT_LOGE("Container field class for enumeration field class is not an integer field class: "
+                       BT_COMP_LOGE("Container field class for enumeration field class is not an integer field class: "
                                "fc-type=%d", integer_decl->base.base.type);
                        ret = -EINVAL;
                        goto error;
@@ -2291,7 +2097,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                        ret = visit_enum_decl_entry(ctx, iter, *enum_decl,
                                &last_value);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit enumeration field class entry: "
                                        "ret=%d", ret);
                                goto error;
@@ -2302,7 +2108,7 @@ int visit_enum_decl(struct ctx *ctx, const char *name,
                        ret = ctx_decl_scope_register_enum(ctx,
                                ctx->current_scope, name, *enum_decl);
                        if (ret) {
-                               BT_LOGE("Cannot register enumeration field class in declaration scope: "
+                               BT_COMP_LOGE("Cannot register enumeration field class in declaration scope: "
                                        "ret=%d", ret);
                                goto error;
                        }
@@ -2333,7 +2139,7 @@ int visit_field_class_specifier(struct ctx *ctx,
        str = g_string_new("");
        ret = get_class_specifier_list_name(ctx, cls_specifier_list, str);
        if (ret) {
-               _BT_LOGE_NODE(cls_specifier_list,
+               _BT_COMP_LOGE_NODE(cls_specifier_list,
                        "Cannot get field class specifier list's name: ret=%d", ret);
                goto error;
        }
@@ -2341,7 +2147,7 @@ int visit_field_class_specifier(struct ctx *ctx,
        *decl = ctx_decl_scope_lookup_alias(ctx, ctx->current_scope, str->str,
                -1, true);
        if (!*decl) {
-               _BT_LOGE_NODE(cls_specifier_list,
+               _BT_COMP_LOGE_NODE(cls_specifier_list,
                        "Cannot find field class alias: name=\"%s\"", str->str);
                ret = -EINVAL;
                goto error;
@@ -2389,16 +2195,16 @@ int visit_integer_decl(struct ctx *ctx,
                        siblings);
 
                if (left->u.unary_expression.type != UNARY_STRING) {
-                       _BT_LOGE_NODE(left,
+                       _BT_COMP_LOGE_NODE(left,
                                "Unexpected unary expression type: type=%d",
                                left->u.unary_expression.type);
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left->u.unary_expression.u.string, "signed")) {
+               if (strcmp(left->u.unary_expression.u.string, "signed") == 0) {
                        if (_IS_SET(&set, _INTEGER_SIGNED_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "signed",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "signed",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
@@ -2406,7 +2212,7 @@ int visit_integer_decl(struct ctx *ctx,
 
                        signedness = get_boolean(ctx, right);
                        if (signedness < 0) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid boolean value for integer field class's `signed` attribute: "
                                        "ret=%d", ret);
                                ret = -EINVAL;
@@ -2414,18 +2220,17 @@ int visit_integer_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _INTEGER_SIGNED_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "byte_order")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "byte_order") == 0) {
                        if (_IS_SET(&set, _INTEGER_BYTE_ORDER_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "byte_order",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "byte_order",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        byte_order = get_real_byte_order(ctx, right);
-                       if (byte_order == -1) {
-                               _BT_LOGE_NODE(right,
+                       if (byte_order == CTF_BYTE_ORDER_UNKNOWN) {
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `byte_order` attribute in integer field class: "
                                        "ret=%d", ret);
                                ret = -EINVAL;
@@ -2433,9 +2238,9 @@ int visit_integer_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _INTEGER_BYTE_ORDER_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string, "size")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "size") == 0) {
                        if (_IS_SET(&set, _INTEGER_SIZE_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "size",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "size",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
@@ -2443,7 +2248,7 @@ int visit_integer_decl(struct ctx *ctx,
 
                        if (right->u.unary_expression.type !=
                                        UNARY_UNSIGNED_CONSTANT) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `size` attribute in integer field class: "
                                        "expecting unsigned constant integer: "
                                        "node-type=%d",
@@ -2454,14 +2259,14 @@ int visit_integer_decl(struct ctx *ctx,
 
                        size = right->u.unary_expression.u.unsigned_constant;
                        if (size == 0) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `size` attribute in integer field class: "
                                        "expecting positive constant integer: "
                                        "size=%" PRIu64, size);
                                ret = -EINVAL;
                                goto error;
                        } else if (size > 64) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `size` attribute in integer field class: "
                                        "integer fields over 64 bits are not supported as of this version: "
                                        "size=%" PRIu64, size);
@@ -2470,10 +2275,9 @@ int visit_integer_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _INTEGER_SIZE_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "align")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "align") == 0) {
                        if (_IS_SET(&set, _INTEGER_ALIGN_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "align",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "align",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
@@ -2481,7 +2285,7 @@ int visit_integer_decl(struct ctx *ctx,
 
                        if (right->u.unary_expression.type !=
                                        UNARY_UNSIGNED_CONSTANT) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `align` attribute in integer field class: "
                                        "expecting unsigned constant integer: "
                                        "node-type=%d",
@@ -2493,7 +2297,7 @@ int visit_integer_decl(struct ctx *ctx,
                        alignment =
                                right->u.unary_expression.u.unsigned_constant;
                        if (!is_align_valid(alignment)) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `align` attribute in integer field class: "
                                        "expecting power of two: "
                                        "align=%" PRIu64, alignment);
@@ -2502,9 +2306,9 @@ int visit_integer_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _INTEGER_ALIGN_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string, "base")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "base") == 0) {
                        if (_IS_SET(&set, _INTEGER_BASE_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "base",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "base",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
@@ -2530,7 +2334,7 @@ int visit_integer_decl(struct ctx *ctx,
                                        base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL;
                                        break;
                                default:
-                                       _BT_LOGE_NODE(right,
+                                       _BT_COMP_LOGE_NODE(right,
                                                "Invalid `base` attribute in integer field class: "
                                                "base=%" PRIu64,
                                                right->u.unary_expression.u.unsigned_constant);
@@ -2541,36 +2345,36 @@ int visit_integer_decl(struct ctx *ctx,
                        }
                        case UNARY_STRING:
                        {
-                               char *s_right = concatenate_unary_strings(
+                               char *s_right = ctf_ast_concatenate_unary_strings(
                                        &expression->u.ctf_expression.right);
                                if (!s_right) {
-                                       _BT_LOGE_NODE(right,
+                                       _BT_COMP_LOGE_NODE(right,
                                                "Unexpected unary expression for integer field class's `base` attribute.");
                                        ret = -EINVAL;
                                        goto error;
                                }
 
-                               if (!strcmp(s_right, "decimal") ||
-                                               !strcmp(s_right, "dec") ||
-                                               !strcmp(s_right, "d") ||
-                                               !strcmp(s_right, "i") ||
-                                               !strcmp(s_right, "u")) {
+                               if (strcmp(s_right, "decimal") == 0 ||
+                                               strcmp(s_right, "dec") == 0 ||
+                                               strcmp(s_right, "d") == 0 ||
+                                               strcmp(s_right, "i") == 0 ||
+                                               strcmp(s_right, "u") == 0) {
                                        base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL;
-                               } else if (!strcmp(s_right, "hexadecimal") ||
-                                               !strcmp(s_right, "hex") ||
-                                               !strcmp(s_right, "x") ||
-                                               !strcmp(s_right, "X") ||
-                                               !strcmp(s_right, "p")) {
+                               } else if (strcmp(s_right, "hexadecimal") == 0 ||
+                                               strcmp(s_right, "hex") == 0 ||
+                                               strcmp(s_right, "x") == 0 ||
+                                               strcmp(s_right, "X") == 0 ||
+                                               strcmp(s_right, "p") == 0) {
                                        base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL;
-                               } else if (!strcmp(s_right, "octal") ||
-                                               !strcmp(s_right, "oct") ||
-                                               !strcmp(s_right, "o")) {
+                               } else if (strcmp(s_right, "octal") == 0 ||
+                                               strcmp(s_right, "oct") == 0 ||
+                                               strcmp(s_right, "o") == 0) {
                                        base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL;
-                               } else if (!strcmp(s_right, "binary") ||
-                                               !strcmp(s_right, "b")) {
+                               } else if (strcmp(s_right, "binary") == 0 ||
+                                               strcmp(s_right, "b") == 0) {
                                        base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY;
                                } else {
-                                       _BT_LOGE_NODE(right,
+                                       _BT_COMP_LOGE_NODE(right,
                                                "Unexpected unary expression for integer field class's `base` attribute: "
                                                "base=\"%s\"", s_right);
                                        g_free(s_right);
@@ -2582,7 +2386,7 @@ int visit_integer_decl(struct ctx *ctx,
                                break;
                        }
                        default:
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `base` attribute in integer field class: "
                                        "expecting unsigned constant integer or unary string.");
                                ret = -EINVAL;
@@ -2590,45 +2394,44 @@ int visit_integer_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _INTEGER_BASE_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "encoding")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "encoding") == 0) {
                        char *s_right;
 
                        if (_IS_SET(&set, _INTEGER_ENCODING_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "encoding",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "encoding",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        if (right->u.unary_expression.type != UNARY_STRING) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `encoding` attribute in integer field class: "
                                        "expecting unary string.");
                                ret = -EINVAL;
                                goto error;
                        }
 
-                       s_right = concatenate_unary_strings(
+                       s_right = ctf_ast_concatenate_unary_strings(
                                &expression->u.ctf_expression.right);
                        if (!s_right) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Unexpected unary expression for integer field class's `encoding` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
-                       if (!strcmp(s_right, "UTF8") ||
-                                       !strcmp(s_right, "utf8") ||
-                                       !strcmp(s_right, "utf-8") ||
-                                       !strcmp(s_right, "UTF-8") ||
-                                       !strcmp(s_right, "ASCII") ||
-                                       !strcmp(s_right, "ascii")) {
+                       if (strcmp(s_right, "UTF8") == 0 ||
+                                       strcmp(s_right, "utf8") == 0 ||
+                                       strcmp(s_right, "utf-8") == 0 ||
+                                       strcmp(s_right, "UTF-8") == 0 ||
+                                       strcmp(s_right, "ASCII") == 0 ||
+                                       strcmp(s_right, "ascii") == 0) {
                                encoding = CTF_ENCODING_UTF8;
-                       } else if (!strcmp(s_right, "none")) {
+                       } else if (strcmp(s_right, "none") == 0) {
                                encoding = CTF_ENCODING_NONE;
                        } else {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `encoding` attribute in integer field class: "
                                        "unknown encoding: encoding=\"%s\"",
                                        s_right);
@@ -2639,18 +2442,18 @@ int visit_integer_decl(struct ctx *ctx,
 
                        g_free(s_right);
                        _SET(&set, _INTEGER_ENCODING_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string, "map")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "map") == 0) {
                        const char *clock_name;
 
                        if (_IS_SET(&set, _INTEGER_MAP_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "map",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "map",
                                        "integer field class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        if (right->u.unary_expression.type != UNARY_STRING) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `map` attribute in integer field class: "
                                        "expecting unary string.");
                                ret = -EINVAL;
@@ -2661,17 +2464,17 @@ int visit_integer_decl(struct ctx *ctx,
                                get_map_clock_name_value(
                                        &expression->u.ctf_expression.right);
                        if (!clock_name) {
-                               char *s_right = concatenate_unary_strings(
+                               char *s_right = ctf_ast_concatenate_unary_strings(
                                        &expression->u.ctf_expression.right);
 
                                if (!s_right) {
-                                       _BT_LOGE_NODE(right,
+                                       _BT_COMP_LOGE_NODE(right,
                                                "Unexpected unary expression for integer field class's `map` attribute.");
                                        ret = -EINVAL;
                                        goto error;
                                }
 
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `map` attribute in integer field class: "
                                        "cannot find clock class at this point: name=\"%s\"",
                                        s_right);
@@ -2684,7 +2487,7 @@ int visit_integer_decl(struct ctx *ctx,
                                ctf_trace_class_borrow_clock_class_by_name(
                                        ctx->ctf_tc, clock_name);
                        if (!mapped_clock_class) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `map` attribute in integer field class: "
                                        "cannot find clock class at this point: name=\"%s\"",
                                        clock_name);
@@ -2694,7 +2497,7 @@ int visit_integer_decl(struct ctx *ctx,
 
                        _SET(&set, _INTEGER_MAP_SET);
                } else {
-                       _BT_LOGW_NODE(left,
+                       _BT_COMP_LOGW_NODE(left,
                                "Unknown attribute in integer field class: "
                                "attr-name=\"%s\"",
                                left->u.unary_expression.u.string);
@@ -2702,7 +2505,7 @@ int visit_integer_decl(struct ctx *ctx,
        }
 
        if (!_IS_SET(&set, _INTEGER_SIZE_SET)) {
-               BT_LOGE_STR("Missing `size` attribute in integer field class.");
+               BT_COMP_LOGE_STR("Missing `size` attribute in integer field class.");
                ret = -EPERM;
                goto error;
        }
@@ -2757,24 +2560,24 @@ int visit_floating_point_number_decl(struct ctx *ctx,
                        siblings);
 
                if (left->u.unary_expression.type != UNARY_STRING) {
-                       _BT_LOGE_NODE(left,
+                       _BT_COMP_LOGE_NODE(left,
                                "Unexpected unary expression type: type=%d",
                                left->u.unary_expression.type);
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left->u.unary_expression.u.string, "byte_order")) {
+               if (strcmp(left->u.unary_expression.u.string, "byte_order") == 0) {
                        if (_IS_SET(&set, _FLOAT_BYTE_ORDER_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "byte_order",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "byte_order",
                                        "floating point number field class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        byte_order = get_real_byte_order(ctx, right);
-                       if (byte_order == -1) {
-                               _BT_LOGE_NODE(right,
+                       if (byte_order == CTF_BYTE_ORDER_UNKNOWN) {
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `byte_order` attribute in floating point number field class: "
                                        "ret=%d", ret);
                                ret = -EINVAL;
@@ -2782,10 +2585,9 @@ int visit_floating_point_number_decl(struct ctx *ctx,
                        }
 
                        _SET(&set, _FLOAT_BYTE_ORDER_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "exp_dig")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "exp_dig") == 0) {
                        if (_IS_SET(&set, _FLOAT_EXP_DIG_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "exp_dig",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "exp_dig",
                                        "floating point number field class");
                                ret = -EPERM;
                                goto error;
@@ -2793,7 +2595,7 @@ int visit_floating_point_number_decl(struct ctx *ctx,
 
                        if (right->u.unary_expression.type !=
                                        UNARY_UNSIGNED_CONSTANT) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `exp_dig` attribute in floating point number field class: "
                                        "expecting unsigned constant integer: "
                                        "node-type=%d",
@@ -2804,10 +2606,9 @@ int visit_floating_point_number_decl(struct ctx *ctx,
 
                        exp_dig = right->u.unary_expression.u.unsigned_constant;
                        _SET(&set, _FLOAT_EXP_DIG_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "mant_dig")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "mant_dig") == 0) {
                        if (_IS_SET(&set, _FLOAT_MANT_DIG_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "mant_dig",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "mant_dig",
                                        "floating point number field class");
                                ret = -EPERM;
                                goto error;
@@ -2815,7 +2616,7 @@ int visit_floating_point_number_decl(struct ctx *ctx,
 
                        if (right->u.unary_expression.type !=
                                        UNARY_UNSIGNED_CONSTANT) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `mant_dig` attribute in floating point number field class: "
                                        "expecting unsigned constant integer: "
                                        "node-type=%d",
@@ -2827,10 +2628,9 @@ int visit_floating_point_number_decl(struct ctx *ctx,
                        mant_dig = right->u.unary_expression.u.
                                unsigned_constant;
                        _SET(&set, _FLOAT_MANT_DIG_SET);
-               } else if (!strcmp(left->u.unary_expression.u.string,
-                               "align")) {
+               } else if (strcmp(left->u.unary_expression.u.string, "align") == 0) {
                        if (_IS_SET(&set, _FLOAT_ALIGN_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "align",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "align",
                                        "floating point number field class");
                                ret = -EPERM;
                                goto error;
@@ -2838,7 +2638,7 @@ int visit_floating_point_number_decl(struct ctx *ctx,
 
                        if (right->u.unary_expression.type !=
                                        UNARY_UNSIGNED_CONSTANT) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `align` attribute in floating point number field class: "
                                        "expecting unsigned constant integer: "
                                        "node-type=%d",
@@ -2851,7 +2651,7 @@ int visit_floating_point_number_decl(struct ctx *ctx,
                                unsigned_constant;
 
                        if (!is_align_valid(alignment)) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `align` attribute in floating point number field class: "
                                        "expecting power of two: "
                                        "align=%" PRIu64, alignment);
@@ -2861,7 +2661,7 @@ int visit_floating_point_number_decl(struct ctx *ctx,
 
                        _SET(&set, _FLOAT_ALIGN_SET);
                } else {
-                       _BT_LOGW_NODE(left,
+                       _BT_COMP_LOGW_NODE(left,
                                "Unknown attribute in floating point number field class: "
                                "attr-name=\"%s\"",
                                left->u.unary_expression.u.string);
@@ -2869,31 +2669,31 @@ int visit_floating_point_number_decl(struct ctx *ctx,
        }
 
        if (!_IS_SET(&set, _FLOAT_MANT_DIG_SET)) {
-               BT_LOGE_STR("Missing `mant_dig` attribute in floating point number field class.");
+               BT_COMP_LOGE_STR("Missing `mant_dig` attribute in floating point number field class.");
                ret = -EPERM;
                goto error;
        }
 
        if (!_IS_SET(&set, _FLOAT_EXP_DIG_SET)) {
-               BT_LOGE_STR("Missing `exp_dig` attribute in floating point number field class.");
+               BT_COMP_LOGE_STR("Missing `exp_dig` attribute in floating point number field class.");
                ret = -EPERM;
                goto error;
        }
 
        if (mant_dig != 24 && mant_dig != 53) {
-               BT_LOGE_STR("`mant_dig` attribute: expecting 24 or 53.");
+               BT_COMP_LOGE_STR("`mant_dig` attribute: expecting 24 or 53.");
                ret = -EPERM;
                goto error;
        }
 
        if (mant_dig == 24 && exp_dig != 8) {
-               BT_LOGE_STR("`exp_dig` attribute: expecting 8 because `mant_dig` is 24.");
+               BT_COMP_LOGE_STR("`exp_dig` attribute: expecting 8 because `mant_dig` is 24.");
                ret = -EPERM;
                goto error;
        }
 
        if (mant_dig == 53 && exp_dig != 11) {
-               BT_LOGE_STR("`exp_dig` attribute: expecting 11 because `mant_dig` is 53.");
+               BT_COMP_LOGE_STR("`exp_dig` attribute: expecting 11 because `mant_dig` is 53.");
                ret = -EPERM;
                goto error;
        }
@@ -2943,51 +2743,51 @@ int visit_string_decl(struct ctx *ctx,
                        siblings);
 
                if (left->u.unary_expression.type != UNARY_STRING) {
-                       _BT_LOGE_NODE(left,
+                       _BT_COMP_LOGE_NODE(left,
                                "Unexpected unary expression type: type=%d",
                                left->u.unary_expression.type);
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left->u.unary_expression.u.string, "encoding")) {
+               if (strcmp(left->u.unary_expression.u.string, "encoding") == 0) {
                        char *s_right;
 
                        if (_IS_SET(&set, _STRING_ENCODING_SET)) {
-                               _BT_LOGE_DUP_ATTR(left, "encoding",
+                               _BT_COMP_LOGE_DUP_ATTR(left, "encoding",
                                        "string field class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        if (right->u.unary_expression.type != UNARY_STRING) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `encoding` attribute in string field class: "
                                        "expecting unary string.");
                                ret = -EINVAL;
                                goto error;
                        }
 
-                       s_right = concatenate_unary_strings(
+                       s_right = ctf_ast_concatenate_unary_strings(
                                &expression->u.ctf_expression.right);
                        if (!s_right) {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Unexpected unary expression for string field class's `encoding` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
-                       if (!strcmp(s_right, "UTF8") ||
-                                       !strcmp(s_right, "utf8") ||
-                                       !strcmp(s_right, "utf-8") ||
-                                       !strcmp(s_right, "UTF-8") ||
-                                       !strcmp(s_right, "ASCII") ||
-                                       !strcmp(s_right, "ascii")) {
+                       if (strcmp(s_right, "UTF8") == 0 ||
+                                       strcmp(s_right, "utf8") == 0 ||
+                                       strcmp(s_right, "utf-8") == 0 ||
+                                       strcmp(s_right, "UTF-8") == 0 ||
+                                       strcmp(s_right, "ASCII") == 0 ||
+                                       strcmp(s_right, "ascii") == 0) {
                                encoding = CTF_ENCODING_UTF8;
-                       } else if (!strcmp(s_right, "none")) {
+                       } else if (strcmp(s_right, "none") == 0) {
                                encoding = CTF_ENCODING_NONE;
                        } else {
-                               _BT_LOGE_NODE(right,
+                               _BT_COMP_LOGE_NODE(right,
                                        "Invalid `encoding` attribute in string field class: "
                                        "unknown encoding: encoding=\"%s\"",
                                        s_right);
@@ -2999,7 +2799,7 @@ int visit_string_decl(struct ctx *ctx,
                        g_free(s_right);
                        _SET(&set, _STRING_ENCODING_SET);
                } else {
-                       _BT_LOGW_NODE(left,
+                       _BT_COMP_LOGW_NODE(left,
                                "Unknown attribute in string field class: "
                                "attr-name=\"%s\"",
                                left->u.unary_expression.u.string);
@@ -3027,7 +2827,7 @@ int visit_field_class_specifier_list(struct ctx *ctx,
        *decl = NULL;
 
        if (ts_list->type != NODE_TYPE_SPECIFIER_LIST) {
-               _BT_LOGE_NODE(ts_list,
+               _BT_COMP_LOGE_NODE(ts_list,
                        "Unexpected node type: node-type=%d", ts_list->type);
                ret = -EINVAL;
                goto error;
@@ -3036,7 +2836,7 @@ int visit_field_class_specifier_list(struct ctx *ctx,
        first = _BT_LIST_FIRST_ENTRY(&ts_list->u.field_class_specifier_list.head,
                struct ctf_node, siblings);
        if (first->type != NODE_TYPE_SPECIFIER) {
-               _BT_LOGE_NODE(first,
+               _BT_COMP_LOGE_NODE(first,
                        "Unexpected node type: node-type=%d", first->type);
                ret = -EINVAL;
                goto error;
@@ -3115,7 +2915,7 @@ int visit_field_class_specifier_list(struct ctx *ctx,
        case TYPESPEC_ID_TYPE:
                ret = visit_field_class_specifier(ctx, ts_list, decl);
                if (ret) {
-                       _BT_LOGE_NODE(first,
+                       _BT_COMP_LOGE_NODE(first,
                                "Cannot visit field class specifier: ret=%d",
                                ret);
                        BT_ASSERT(!*decl);
@@ -3123,7 +2923,7 @@ int visit_field_class_specifier_list(struct ctx *ctx,
                }
                break;
        default:
-               _BT_LOGE_NODE(first,
+               _BT_COMP_LOGE_NODE(first,
                        "Unexpected field class specifier type: node-type=%d",
                        first->u.field_class_specifier.type);
                ret = -EINVAL;
@@ -3152,7 +2952,7 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
                        &node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class found in event class.");
                        goto error;
                }
@@ -3161,34 +2961,34 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
                        node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class alias found in event class.");
                        goto error;
                }
                break;
        case NODE_CTF_EXPRESSION:
        {
-               left = concatenate_unary_strings(&node->u.ctf_expression.left);
+               left = ctf_ast_concatenate_unary_strings(&node->u.ctf_expression.left);
                if (!left) {
-                       _BT_LOGE_NODE(node, "Cannot concatenate unary strings.");
+                       _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left, "name")) {
+               if (strcmp(left, "name") == 0) {
                        /* This is already known at this stage */
                        if (_IS_SET(set, _EVENT_NAME_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "name", "event class");
+                               _BT_COMP_LOGE_DUP_ATTR(node, "name", "event class");
                                ret = -EPERM;
                                goto error;
                        }
 
                        _SET(set, _EVENT_NAME_SET);
-               } else if (!strcmp(left, "id")) {
+               } else if (strcmp(left, "id") == 0) {
                        int64_t id = -1;
 
                        if (_IS_SET(set, _EVENT_ID_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "id", "event class");
+                               _BT_COMP_LOGE_DUP_ATTR(node, "id", "event class");
                                ret = -EPERM;
                                goto error;
                        }
@@ -3198,7 +2998,7 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                (uint64_t *) &id);
                        /* Only read "id" if get_unary_unsigned() succeeded. */
                        if (ret || (!ret && id < 0)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for event class's `id` attribute.");
                                ret = -EINVAL;
                                goto error;
@@ -3206,9 +3006,9 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
 
                        event_class->id = id;
                        _SET(set, _EVENT_ID_SET);
-               } else if (!strcmp(left, "stream_id")) {
+               } else if (strcmp(left, "stream_id") == 0) {
                        if (_IS_SET(set, _EVENT_STREAM_ID_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "stream_id",
+                               _BT_COMP_LOGE_DUP_ATTR(node, "stream_id",
                                        "event class");
                                ret = -EPERM;
                                goto error;
@@ -3222,16 +3022,16 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                         * succeeded.
                         */
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for event class's `stream_id` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
                        _SET(set, _EVENT_STREAM_ID_SET);
-               } else if (!strcmp(left, "context")) {
+               } else if (strcmp(left, "context") == 0) {
                        if (_IS_SET(set, _EVENT_CONTEXT_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `context` entry in event class.");
                                ret = -EPERM;
                                goto error;
@@ -3243,16 +3043,16 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                        struct ctf_node, siblings),
                                &event_class->spec_context_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create event class's context field class.");
                                goto error;
                        }
 
                        BT_ASSERT(event_class->spec_context_fc);
                        _SET(set, _EVENT_CONTEXT_SET);
-               } else if (!strcmp(left, "fields")) {
+               } else if (strcmp(left, "fields") == 0) {
                        if (_IS_SET(set, _EVENT_FIELDS_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `fields` entry in event class.");
                                ret = -EPERM;
                                goto error;
@@ -3264,19 +3064,20 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                        struct ctf_node, siblings),
                                &event_class->payload_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create event class's payload field class.");
                                goto error;
                        }
 
                        BT_ASSERT(event_class->payload_fc);
                        _SET(set, _EVENT_FIELDS_SET);
-               } else if (!strcmp(left, "loglevel")) {
+               } else if (strcmp(left, "loglevel") == 0) {
                        uint64_t loglevel_value;
+                       bool is_log_level_known = true;
                        bt_event_class_log_level log_level = -1;
 
                        if (_IS_SET(set, _EVENT_LOG_LEVEL_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "loglevel",
+                               _BT_COMP_LOGE_DUP_ATTR(node, "loglevel",
                                        "event class");
                                ret = -EPERM;
                                goto error;
@@ -3285,7 +3086,7 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                        ret = get_unary_unsigned(ctx,
                                &node->u.ctf_expression.right, &loglevel_value);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for event class's `loglevel` attribute.");
                                ret = -EINVAL;
                                goto error;
@@ -3338,36 +3139,37 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG;
                                break;
                        default:
-                               _BT_LOGW_NODE(node, "Not setting event class's log level because its value is unknown: "
+                               is_log_level_known = false;
+                               _BT_COMP_LOGW_NODE(node, "Not setting event class's log level because its value is unknown: "
                                        "log-level=%" PRIu64, loglevel_value);
                        }
 
-                       if (log_level != -1) {
-                               event_class->log_level = log_level;
+                       if (is_log_level_known) {
+                               ctf_event_class_set_log_level(event_class, log_level);
                        }
 
                        _SET(set, _EVENT_LOG_LEVEL_SET);
-               } else if (!strcmp(left, "model.emf.uri")) {
+               } else if (strcmp(left, "model.emf.uri") == 0) {
                        char *right;
 
                        if (_IS_SET(set, _EVENT_MODEL_EMF_URI_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "model.emf.uri",
+                               _BT_COMP_LOGE_DUP_ATTR(node, "model.emf.uri",
                                        "event class");
                                ret = -EPERM;
                                goto error;
                        }
 
-                       right = concatenate_unary_strings(
+                       right = ctf_ast_concatenate_unary_strings(
                                &node->u.ctf_expression.right);
                        if (!right) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for event class's `model.emf.uri` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
                        if (strlen(right) == 0) {
-                               _BT_LOGW_NODE(node,
+                               _BT_COMP_LOGW_NODE(node,
                                        "Not setting event class's EMF URI because it's empty.");
                        } else {
                                g_string_assign(event_class->emf_uri,
@@ -3377,7 +3179,7 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
                        g_free(right);
                        _SET(set, _EVENT_MODEL_EMF_URI_SET);
                } else {
-                       _BT_LOGW_NODE(node,
+                       _BT_COMP_LOGW_NODE(node,
                                "Unknown attribute in event class: "
                                "attr-name=\"%s\"", left);
                }
@@ -3394,9 +3196,7 @@ int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
        goto end;
 
 error:
-       if (left) {
-               g_free(left);
-       }
+       g_free(left);
 
 end:
        return ret;
@@ -3415,18 +3215,18 @@ char *get_event_decl_name(struct ctx *ctx, struct ctf_node *node)
                        continue;
                }
 
-               left = concatenate_unary_strings(&iter->u.ctf_expression.left);
+               left = ctf_ast_concatenate_unary_strings(&iter->u.ctf_expression.left);
                if (!left) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Cannot concatenate unary strings.");
                        goto error;
                }
 
-               if (!strcmp(left, "name")) {
-                       name = concatenate_unary_strings(
+               if (strcmp(left, "name") == 0) {
+                       name = ctf_ast_concatenate_unary_strings(
                                &iter->u.ctf_expression.right);
                        if (!name) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Unexpected unary expression for event class's `name` attribute.");
                                goto error;
                        }
@@ -3467,7 +3267,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
        node->visited = TRUE;
        event_name = get_event_decl_name(ctx, node);
        if (!event_name) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Missing `name` attribute in event class.");
                ret = -EPERM;
                goto error;
@@ -3483,7 +3283,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
                ret = visit_event_decl_entry(ctx, iter, event_class,
                        &stream_id, &set);
                if (ret) {
-                       _BT_LOGE_NODE(iter, "Cannot visit event class's entry: "
+                       _BT_COMP_LOGE_NODE(iter, "Cannot visit event class's entry: "
                                "ret=%d", ret);
                        goto error;
                }
@@ -3510,7 +3310,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
                        stream_id = stream_class->id;
                        break;
                default:
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Missing `stream_id` attribute in event class.");
                        ret = -EPERM;
                        goto error;
@@ -3522,7 +3322,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
                stream_class = ctf_trace_class_borrow_stream_class_by_id(
                        ctx->ctf_tc, stream_id);
                if (!stream_class) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot find stream class at this point: "
                                "id=%" PRId64, stream_id);
                        ret = -EINVAL;
@@ -3535,7 +3335,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
        if (!_IS_SET(&set, _EVENT_ID_SET)) {
                /* Allow only one event without ID per stream */
                if (stream_class->event_classes->len != 0) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Missing `id` attribute in event class.");
                        ret = -EPERM;
                        goto error;
@@ -3547,7 +3347,7 @@ int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
 
        if (ctf_stream_class_borrow_event_class_by_id(stream_class,
                        event_class->id)) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Duplicate event class (same ID) in the same stream class: "
                        "id=%" PRId64, event_class->id);
                ret = -EEXIST;
@@ -3571,9 +3371,7 @@ end:
                ctx_pop_scope(ctx);
        }
 
-       if (event_name) {
-               g_free(event_name);
-       }
+       g_free(event_name);
 
        return ret;
 }
@@ -3630,7 +3428,7 @@ int auto_map_field_to_trace_clock_class(struct ctx *ctx,
                 * Timestamp field not mapped to a clock class and there's more
                 * than one clock class in the trace: this is an error.
                 */
-               BT_LOGE_STR("Timestamp field found with no mapped clock class, "
+               BT_COMP_LOGE_STR("Timestamp field found with no mapped clock class, "
                        "but there's more than one clock class in the trace at this point.");
                ret = -1;
                goto end;
@@ -3676,13 +3474,15 @@ int auto_map_fields_to_trace_clock_class(struct ctx *ctx,
                } else if (root_fc->type == CTF_FIELD_CLASS_TYPE_VARIANT) {
                        named_fc = ctf_field_class_variant_borrow_option_by_index(
                                var_fc, i);
+               } else {
+                       bt_common_abort();
                }
 
                if (strcmp(named_fc->name->str, field_name) == 0) {
                        ret = auto_map_field_to_trace_clock_class(ctx,
                                named_fc->fc);
                        if (ret) {
-                               BT_LOGE("Cannot automatically map field to trace's clock class: "
+                               BT_COMP_LOGE("Cannot automatically map field to trace's clock class: "
                                        "field-name=\"%s\"", field_name);
                                goto end;
                        }
@@ -3691,7 +3491,7 @@ int auto_map_fields_to_trace_clock_class(struct ctx *ctx,
                ret = auto_map_fields_to_trace_clock_class(ctx, named_fc->fc,
                        field_name);
                if (ret) {
-                       BT_LOGE("Cannot automatically map structure or variant field class's fields to trace's clock class: "
+                       BT_COMP_LOGE("Cannot automatically map structure or variant field class's fields to trace's clock class: "
                                "field-name=\"%s\", root-field-name=\"%s\"",
                                field_name, named_fc->name->str);
                        goto end;
@@ -3714,7 +3514,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
                        &node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class found in stream class.");
                        goto error;
                }
@@ -3723,25 +3523,25 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
                        node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class alias found in stream class.");
                        goto error;
                }
                break;
        case NODE_CTF_EXPRESSION:
        {
-               left = concatenate_unary_strings(&node->u.ctf_expression.left);
+               left = ctf_ast_concatenate_unary_strings(&node->u.ctf_expression.left);
                if (!left) {
-                       _BT_LOGE_NODE(node, "Cannot concatenate unary strings.");
+                       _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left, "id")) {
+               if (strcmp(left, "id") == 0) {
                        int64_t id;
 
                        if (_IS_SET(set, _STREAM_ID_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "id",
+                               _BT_COMP_LOGE_DUP_ATTR(node, "id",
                                        "stream declaration");
                                ret = -EPERM;
                                goto error;
@@ -3753,7 +3553,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
 
                        /* Only read "id" if get_unary_unsigned() succeeded. */
                        if (ret || (!ret && id < 0)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for stream class's `id` attribute.");
                                ret = -EINVAL;
                                goto error;
@@ -3761,7 +3561,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
 
                        if (ctf_trace_class_borrow_stream_class_by_id(
                                        ctx->ctf_tc, id)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate stream class (same ID): id=%" PRId64,
                                        id);
                                ret = -EEXIST;
@@ -3770,9 +3570,9 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
 
                        stream_class->id = id;
                        _SET(set, _STREAM_ID_SET);
-               } else if (!strcmp(left, "event.header")) {
+               } else if (strcmp(left, "event.header") == 0) {
                        if (_IS_SET(set, _STREAM_EVENT_HEADER_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `event.header` entry in stream class.");
                                ret = -EPERM;
                                goto error;
@@ -3784,7 +3584,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                        struct ctf_node, siblings),
                                &stream_class->event_header_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create stream class's event header field class.");
                                goto error;
                        }
@@ -3793,15 +3593,15 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                        ret = auto_map_fields_to_trace_clock_class(ctx,
                                stream_class->event_header_fc, "timestamp");
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot automatically map specific event header field class fields named `timestamp` to trace's clock class.");
                                goto error;
                        }
 
                        _SET(set, _STREAM_EVENT_HEADER_SET);
-               } else if (!strcmp(left, "event.context")) {
+               } else if (strcmp(left, "event.context") == 0) {
                        if (_IS_SET(set, _STREAM_EVENT_CONTEXT_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `event.context` entry in stream class.");
                                ret = -EPERM;
                                goto error;
@@ -3813,16 +3613,16 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                        struct ctf_node, siblings),
                                &stream_class->event_common_context_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create stream class's event context field class.");
                                goto error;
                        }
 
                        BT_ASSERT(stream_class->event_common_context_fc);
                        _SET(set, _STREAM_EVENT_CONTEXT_SET);
-               } else if (!strcmp(left, "packet.context")) {
+               } else if (strcmp(left, "packet.context") == 0) {
                        if (_IS_SET(set, _STREAM_PACKET_CONTEXT_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `packet.context` entry in stream class.");
                                ret = -EPERM;
                                goto error;
@@ -3834,7 +3634,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                        struct ctf_node, siblings),
                                &stream_class->packet_context_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create stream class's packet context field class.");
                                goto error;
                        }
@@ -3844,7 +3644,7 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                stream_class->packet_context_fc,
                                "timestamp_begin");
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot automatically map specific packet context field class fields named `timestamp_begin` to trace's clock class.");
                                goto error;
                        }
@@ -3853,14 +3653,14 @@ int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
                                stream_class->packet_context_fc,
                                "timestamp_end");
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot automatically map specific packet context field class fields named `timestamp_end` to trace's clock class.");
                                goto error;
                        }
 
                        _SET(set, _STREAM_PACKET_CONTEXT_SET);
                } else {
-                       _BT_LOGW_NODE(node,
+                       _BT_COMP_LOGW_NODE(node,
                                "Unknown attribute in stream class: "
                                "attr-name=\"%s\"", left);
                }
@@ -3903,7 +3703,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
        bt_list_for_each_entry(iter, decl_list, siblings) {
                ret = visit_stream_decl_entry(ctx, iter, stream_class, &set);
                if (ret) {
-                       _BT_LOGE_NODE(iter,
+                       _BT_COMP_LOGE_NODE(iter,
                                "Cannot visit stream class's entry: "
                                "ret=%d", ret);
                        ctx_pop_scope(ctx);
@@ -3918,7 +3718,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
                struct ctf_named_field_class *named_fc = NULL;
 
                if (!ctx->ctf_tc->packet_header_fc) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Stream class has a `id` attribute, "
                                "but trace has no packet header field class.");
                        goto error;
@@ -3927,7 +3727,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
                named_fc = ctf_field_class_struct_borrow_member_by_name(
                        (void *) ctx->ctf_tc->packet_header_fc, "stream_id");
                if (!named_fc) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Stream class has a `id` attribute, "
                                "but trace's packet header field class has no `stream_id` field.");
                        goto error;
@@ -3935,7 +3735,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
 
                if (named_fc->fc->type != CTF_FIELD_CLASS_TYPE_INT &&
                                named_fc->fc->type != CTF_FIELD_CLASS_TYPE_ENUM) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Stream class has a `id` attribute, "
                                "but trace's packet header field class's `stream_id` field is not an integer field class.");
                        goto error;
@@ -3943,7 +3743,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
        } else {
                /* Allow only _one_ ID-less stream */
                if (ctx->ctf_tc->stream_classes->len != 0) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Missing `id` attribute in stream class as there's more than one stream class in the trace.");
                        ret = -EPERM;
                        goto error;
@@ -3959,7 +3759,7 @@ int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
         */
        if (ctf_trace_class_borrow_stream_class_by_id(ctx->ctf_tc,
                        stream_class->id)) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Duplicate stream class (same ID): id=%" PRId64,
                        stream_class->id);
                ret = -EINVAL;
@@ -3990,7 +3790,7 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
                        &node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class found in trace (`trace` block).");
                        goto error;
                }
@@ -3999,23 +3799,23 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
                        node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(node,
+                       _BT_COMP_LOGE_NODE(node,
                                "Cannot add field class alias found in trace (`trace` block).");
                        goto error;
                }
                break;
        case NODE_CTF_EXPRESSION:
        {
-               left = concatenate_unary_strings(&node->u.ctf_expression.left);
+               left = ctf_ast_concatenate_unary_strings(&node->u.ctf_expression.left);
                if (!left) {
-                       _BT_LOGE_NODE(node, "Cannot concatenate unary strings.");
+                       _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
                        ret = -EINVAL;
                        goto error;
                }
 
-               if (!strcmp(left, "major")) {
+               if (strcmp(left, "major") == 0) {
                        if (_IS_SET(set, _TRACE_MAJOR_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "major", "trace");
+                               _BT_COMP_LOGE_DUP_ATTR(node, "major", "trace");
                                ret = -EPERM;
                                goto error;
                        }
@@ -4023,23 +3823,23 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                        ret = get_unary_unsigned(ctx,
                                &node->u.ctf_expression.right, &val);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for trace's `major` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
                        if (val != 1) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Invalid trace's `minor` attribute: expecting 1.");
                                goto error;
                        }
 
                        ctx->ctf_tc->major = val;
                        _SET(set, _TRACE_MAJOR_SET);
-               } else if (!strcmp(left, "minor")) {
+               } else if (strcmp(left, "minor") == 0) {
                        if (_IS_SET(set, _TRACE_MINOR_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "minor", "trace");
+                               _BT_COMP_LOGE_DUP_ATTR(node, "minor", "trace");
                                ret = -EPERM;
                                goto error;
                        }
@@ -4047,23 +3847,23 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                        ret = get_unary_unsigned(ctx,
                                &node->u.ctf_expression.right, &val);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Unexpected unary expression for trace's `minor` attribute.");
                                ret = -EINVAL;
                                goto error;
                        }
 
                        if (val != 8) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Invalid trace's `minor` attribute: expecting 8.");
                                goto error;
                        }
 
                        ctx->ctf_tc->minor = val;
                        _SET(set, _TRACE_MINOR_SET);
-               } else if (!strcmp(left, "uuid")) {
+               } else if (strcmp(left, "uuid") == 0) {
                        if (_IS_SET(set, _TRACE_UUID_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "uuid", "trace");
+                               _BT_COMP_LOGE_DUP_ATTR(node, "uuid", "trace");
                                ret = -EPERM;
                                goto error;
                        }
@@ -4072,27 +3872,27 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                                &node->u.ctf_expression.right,
                                ctx->ctf_tc->uuid);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Invalid trace's `uuid` attribute.");
                                goto error;
                        }
 
                        ctx->ctf_tc->is_uuid_set = true;
                        _SET(set, _TRACE_UUID_SET);
-               } else if (!strcmp(left, "byte_order")) {
+               } else if (strcmp(left, "byte_order") == 0) {
                        /* Default byte order is already known at this stage */
                        if (_IS_SET(set, _TRACE_BYTE_ORDER_SET)) {
-                               _BT_LOGE_DUP_ATTR(node, "byte_order",
+                               _BT_COMP_LOGE_DUP_ATTR(node, "byte_order",
                                        "trace");
                                ret = -EPERM;
                                goto error;
                        }
 
-                       BT_ASSERT(ctx->ctf_tc->default_byte_order != -1);
+                       BT_ASSERT(ctx->ctf_tc->default_byte_order != CTF_BYTE_ORDER_UNKNOWN);
                        _SET(set, _TRACE_BYTE_ORDER_SET);
-               } else if (!strcmp(left, "packet.header")) {
+               } else if (strcmp(left, "packet.header") == 0) {
                        if (_IS_SET(set, _TRACE_PACKET_HEADER_SET)) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Duplicate `packet.header` entry in trace.");
                                ret = -EPERM;
                                goto error;
@@ -4104,7 +3904,7 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                                        struct ctf_node, siblings),
                                &ctx->ctf_tc->packet_header_fc);
                        if (ret) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot create trace's packet header field class.");
                                goto error;
                        }
@@ -4112,7 +3912,7 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                        BT_ASSERT(ctx->ctf_tc->packet_header_fc);
                        _SET(set, _TRACE_PACKET_HEADER_SET);
                } else {
-                       _BT_LOGW_NODE(node,
+                       _BT_COMP_LOGW_NODE(node,
                                "Unknown attribute in stream class: "
                                "attr-name=\"%s\"", left);
                }
@@ -4122,7 +3922,7 @@ int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
                break;
        }
        default:
-               _BT_LOGE_NODE(node, "Unknown expression in trace.");
+               _BT_COMP_LOGE_NODE(node, "Unknown expression in trace.");
                ret = -EINVAL;
                goto error;
        }
@@ -4149,7 +3949,7 @@ int visit_trace_decl(struct ctx *ctx, struct ctf_node *node)
        node->visited = TRUE;
 
        if (ctx->is_trace_visited) {
-               _BT_LOGE_NODE(node, "Duplicate trace (`trace` block).");
+               _BT_COMP_LOGE_NODE(node, "Duplicate trace (`trace` block).");
                ret = -EEXIST;
                goto error;
        }
@@ -4159,7 +3959,7 @@ int visit_trace_decl(struct ctx *ctx, struct ctf_node *node)
        bt_list_for_each_entry(iter, decl_list, siblings) {
                ret = visit_trace_decl_entry(ctx, iter, &set);
                if (ret) {
-                       _BT_LOGE_NODE(iter, "Cannot visit trace's entry (`trace` block): "
+                       _BT_COMP_LOGE_NODE(iter, "Cannot visit trace's entry (`trace` block): "
                                "ret=%d", ret);
                        ctx_pop_scope(ctx);
                        goto error;
@@ -4169,21 +3969,21 @@ int visit_trace_decl(struct ctx *ctx, struct ctf_node *node)
        ctx_pop_scope(ctx);
 
        if (!_IS_SET(&set, _TRACE_MAJOR_SET)) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Missing `major` attribute in trace (`trace` block).");
                ret = -EPERM;
                goto error;
        }
 
        if (!_IS_SET(&set, _TRACE_MINOR_SET)) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Missing `minor` attribute in trace (`trace` block).");
                ret = -EPERM;
                goto error;
        }
 
        if (!_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Missing `byte_order` attribute in trace (`trace` block).");
                ret = -EPERM;
                goto error;
@@ -4217,27 +4017,27 @@ int visit_env(struct ctx *ctx, struct ctf_node *node)
                        &entry_node->u.ctf_expression.right;
 
                if (entry_node->type != NODE_CTF_EXPRESSION) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Wrong expression in environment entry: "
                                "node-type=%d", entry_node->type);
                        ret = -EPERM;
                        goto error;
                }
 
-               left = concatenate_unary_strings(
+               left = ctf_ast_concatenate_unary_strings(
                        &entry_node->u.ctf_expression.left);
                if (!left) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot get environment entry's name.");
                        ret = -EINVAL;
                        goto error;
                }
 
                if (is_unary_string(right_head)) {
-                       char *right = concatenate_unary_strings(right_head);
+                       char *right = ctf_ast_concatenate_unary_strings(right_head);
 
                        if (!right) {
-                               _BT_LOGE_NODE(entry_node,
+                               _BT_COMP_LOGE_NODE(entry_node,
                                        "Unexpected unary expression for environment entry's value: "
                                        "name=\"%s\"", left);
                                ret = -EINVAL;
@@ -4246,7 +4046,7 @@ int visit_env(struct ctx *ctx, struct ctf_node *node)
 
                        if (strcmp(left, "tracer_name") == 0) {
                                if (strncmp(right, "lttng", 5) == 0) {
-                                       BT_LOGI("Detected LTTng trace from `%s` environment value: "
+                                       BT_COMP_LOGI("Detected LTTng trace from `%s` environment value: "
                                                "tracer-name=\"%s\"",
                                                left, right);
                                        ctx->is_lttng = true;
@@ -4268,7 +4068,7 @@ int visit_env(struct ctx *ctx, struct ctf_node *node)
                                ret = get_unary_signed(right_head, &v);
                        }
                        if (ret) {
-                               _BT_LOGE_NODE(entry_node,
+                               _BT_COMP_LOGE_NODE(entry_node,
                                        "Unexpected unary expression for environment entry's value: "
                                        "name=\"%s\"", left);
                                ret = -EINVAL;
@@ -4279,7 +4079,7 @@ int visit_env(struct ctx *ctx, struct ctf_node *node)
                                left, CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT,
                                NULL, v);
                } else {
-                       _BT_LOGW_NODE(entry_node,
+                       _BT_COMP_LOGW_NODE(entry_node,
                                "Environment entry has unknown type: "
                                "name=\"%s\"", left);
                }
@@ -4309,20 +4109,20 @@ int set_trace_byte_order(struct ctx *ctx, struct ctf_node *trace_node)
                if (node->type == NODE_CTF_EXPRESSION) {
                        struct ctf_node *right_node;
 
-                       left = concatenate_unary_strings(
+                       left = ctf_ast_concatenate_unary_strings(
                                &node->u.ctf_expression.left);
                        if (!left) {
-                               _BT_LOGE_NODE(node,
+                               _BT_COMP_LOGE_NODE(node,
                                        "Cannot concatenate unary strings.");
                                ret = -EINVAL;
                                goto error;
                        }
 
-                       if (!strcmp(left, "byte_order")) {
+                       if (strcmp(left, "byte_order") == 0) {
                                enum ctf_byte_order bo;
 
                                if (_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
-                                       _BT_LOGE_DUP_ATTR(node, "byte_order",
+                                       _BT_COMP_LOGE_DUP_ATTR(node, "byte_order",
                                                "trace");
                                        ret = -EPERM;
                                        goto error;
@@ -4334,14 +4134,14 @@ int set_trace_byte_order(struct ctx *ctx, struct ctf_node *trace_node)
                                        struct ctf_node, siblings);
                                bo = byte_order_from_unary_expr(ctx,
                                        right_node);
-                               if (bo == -1) {
-                                       _BT_LOGE_NODE(node,
+                               if (bo == CTF_BYTE_ORDER_UNKNOWN) {
+                                       _BT_COMP_LOGE_NODE(node,
                                                "Invalid `byte_order` attribute in trace (`trace` block): "
                                                "expecting `le`, `be`, or `network`.");
                                        ret = -EINVAL;
                                        goto error;
                                } else if (bo == CTF_BYTE_ORDER_DEFAULT) {
-                                       _BT_LOGE_NODE(node,
+                                       _BT_COMP_LOGE_NODE(node,
                                                "Invalid `byte_order` attribute in trace (`trace` block): "
                                                "cannot be set to `native` here.");
                                        ret = -EPERM;
@@ -4357,7 +4157,7 @@ int set_trace_byte_order(struct ctx *ctx, struct ctf_node *trace_node)
        }
 
        if (!_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
-               _BT_LOGE_NODE(trace_node,
+               _BT_COMP_LOGE_NODE(trace_node,
                        "Missing `byte_order` attribute in trace (`trace` block).");
                ret = -EINVAL;
                goto error;
@@ -4379,33 +4179,33 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
        char *left = NULL;
 
        if (entry_node->type != NODE_CTF_EXPRESSION) {
-               _BT_LOGE_NODE(entry_node,
+               _BT_COMP_LOGE_NODE(entry_node,
                        "Unexpected node type: node-type=%d",
                        entry_node->type);
                ret = -EPERM;
                goto error;
        }
 
-       left = concatenate_unary_strings(&entry_node->u.ctf_expression.left);
+       left = ctf_ast_concatenate_unary_strings(&entry_node->u.ctf_expression.left);
        if (!left) {
-               _BT_LOGE_NODE(entry_node, "Cannot concatenate unary strings.");
+               _BT_COMP_LOGE_NODE(entry_node, "Cannot concatenate unary strings.");
                ret = -EINVAL;
                goto error;
        }
 
-       if (!strcmp(left, "name")) {
+       if (strcmp(left, "name") == 0) {
                char *right;
 
                if (_IS_SET(set, _CLOCK_NAME_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "name", "clock class");
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "name", "clock class");
                        ret = -EPERM;
                        goto error;
                }
 
-               right = concatenate_unary_strings(
+               right = ctf_ast_concatenate_unary_strings(
                        &entry_node->u.ctf_expression.right);
                if (!right) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `name` attribute.");
                        ret = -EINVAL;
                        goto error;
@@ -4414,11 +4214,11 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                g_string_assign(clock->name, right);
                g_free(right);
                _SET(set, _CLOCK_NAME_SET);
-       } else if (!strcmp(left, "uuid")) {
-               uint8_t uuid[BABELTRACE_UUID_LEN];
+       } else if (strcmp(left, "uuid") == 0) {
+               bt_uuid_t uuid;
 
                if (_IS_SET(set, _CLOCK_UUID_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "uuid", "clock class");
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "uuid", "clock class");
                        ret = -EPERM;
                        goto error;
                }
@@ -4426,28 +4226,28 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = get_unary_uuid(ctx, &entry_node->u.ctf_expression.right,
                        uuid);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Invalid clock class's `uuid` attribute.");
                        goto error;
                }
 
                clock->has_uuid = true;
-               memcpy(&clock->uuid[0], uuid, 16);
+               bt_uuid_copy(clock->uuid, uuid);
                _SET(set, _CLOCK_UUID_SET);
-       } else if (!strcmp(left, "description")) {
+       } else if (strcmp(left, "description") == 0) {
                char *right;
 
                if (_IS_SET(set, _CLOCK_DESCRIPTION_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "description",
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "description",
                                "clock class");
                        ret = -EPERM;
                        goto error;
                }
 
-               right = concatenate_unary_strings(
+               right = ctf_ast_concatenate_unary_strings(
                        &entry_node->u.ctf_expression.right);
                if (!right) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `description` attribute.");
                        ret = -EINVAL;
                        goto error;
@@ -4456,11 +4256,11 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                g_string_assign(clock->description, right);
                g_free(right);
                _SET(set, _CLOCK_DESCRIPTION_SET);
-       } else if (!strcmp(left, "freq")) {
+       } else if (strcmp(left, "freq") == 0) {
                uint64_t freq = UINT64_C(-1);
 
                if (_IS_SET(set, _CLOCK_FREQ_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "freq", "clock class");
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "freq", "clock class");
                        ret = -EPERM;
                        goto error;
                }
@@ -4468,14 +4268,14 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = get_unary_unsigned(ctx,
                        &entry_node->u.ctf_expression.right, &freq);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `freq` attribute.");
                        ret = -EINVAL;
                        goto error;
                }
 
                if (freq == UINT64_C(-1) || freq == 0) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Invalid clock class frequency: freq=%" PRIu64,
                                freq);
                        ret = -EINVAL;
@@ -4484,11 +4284,11 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
 
                clock->frequency = freq;
                _SET(set, _CLOCK_FREQ_SET);
-       } else if (!strcmp(left, "precision")) {
+       } else if (strcmp(left, "precision") == 0) {
                uint64_t precision;
 
                if (_IS_SET(set, _CLOCK_PRECISION_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "precision",
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "precision",
                                "clock class");
                        ret = -EPERM;
                        goto error;
@@ -4497,7 +4297,7 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = get_unary_unsigned(ctx,
                        &entry_node->u.ctf_expression.right, &precision);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `precision` attribute.");
                        ret = -EINVAL;
                        goto error;
@@ -4505,9 +4305,9 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
 
                clock->precision = precision;
                _SET(set, _CLOCK_PRECISION_SET);
-       } else if (!strcmp(left, "offset_s")) {
+       } else if (strcmp(left, "offset_s") == 0) {
                if (_IS_SET(set, _CLOCK_OFFSET_S_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "offset_s",
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "offset_s",
                                "clock class");
                        ret = -EPERM;
                        goto error;
@@ -4516,16 +4316,16 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = get_unary_signed(
                        &entry_node->u.ctf_expression.right, offset_seconds);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `offset_s` attribute.");
                        ret = -EINVAL;
                        goto error;
                }
 
                _SET(set, _CLOCK_OFFSET_S_SET);
-       } else if (!strcmp(left, "offset")) {
+       } else if (strcmp(left, "offset") == 0) {
                if (_IS_SET(set, _CLOCK_OFFSET_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "offset", "clock class");
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "offset", "clock class");
                        ret = -EPERM;
                        goto error;
                }
@@ -4533,18 +4333,18 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                ret = get_unary_unsigned(ctx,
                        &entry_node->u.ctf_expression.right, offset_cycles);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `offset` attribute.");
                        ret = -EINVAL;
                        goto error;
                }
 
                _SET(set, _CLOCK_OFFSET_SET);
-       } else if (!strcmp(left, "absolute")) {
+       } else if (strcmp(left, "absolute") == 0) {
                struct ctf_node *right;
 
                if (_IS_SET(set, _CLOCK_ABSOLUTE_SET)) {
-                       _BT_LOGE_DUP_ATTR(entry_node, "absolute",
+                       _BT_COMP_LOGE_DUP_ATTR(entry_node, "absolute",
                                "clock class");
                        ret = -EPERM;
                        goto error;
@@ -4555,7 +4355,7 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                        struct ctf_node, siblings);
                ret = get_boolean(ctx, right);
                if (ret < 0) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Unexpected unary expression for clock class's `absolute` attribute.");
                        ret = -EINVAL;
                        goto error;
@@ -4564,7 +4364,7 @@ int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
                clock->is_absolute = ret;
                _SET(set, _CLOCK_ABSOLUTE_SET);
        } else {
-               _BT_LOGW_NODE(entry_node,
+               _BT_COMP_LOGW_NODE(entry_node,
                        "Unknown attribute in clock class: attr-name=\"%s\"",
                        left);
        }
@@ -4605,6 +4405,17 @@ void calibrate_clock_class_offsets(int64_t *offset_seconds,
        }
 }
 
+static
+void apply_clock_class_is_absolute(struct ctx *ctx,
+               struct ctf_clock_class *clock)
+{
+       if (ctx->decoder_config.force_clock_class_origin_unix_epoch) {
+               clock->is_absolute = true;
+       }
+
+       return;
+}
+
 static
 void apply_clock_class_offset(struct ctx *ctx,
                struct ctf_clock_class *clock)
@@ -4686,7 +4497,7 @@ int visit_clock_decl(struct ctx *ctx, struct ctf_node *clock_node)
        /* CTF 1.8's default frequency for a clock class is 1 GHz */
        clock = ctf_clock_class_create();
        if (!clock) {
-               _BT_LOGE_NODE(clock_node,
+               _BT_COMP_LOGE_NODE(clock_node,
                        "Cannot create default clock class.");
                ret = -ENOMEM;
                goto end;
@@ -4696,7 +4507,7 @@ int visit_clock_decl(struct ctx *ctx, struct ctf_node *clock_node)
                ret = visit_clock_decl_entry(ctx, entry_node, clock, &set,
                        &offset_seconds, &offset_cycles);
                if (ret) {
-                       _BT_LOGE_NODE(entry_node,
+                       _BT_COMP_LOGE_NODE(entry_node,
                                "Cannot visit clock class's entry: ret=%d",
                                ret);
                        goto end;
@@ -4704,7 +4515,7 @@ int visit_clock_decl(struct ctx *ctx, struct ctf_node *clock_node)
        }
 
        if (!_IS_SET(&set, _CLOCK_NAME_SET)) {
-               _BT_LOGE_NODE(clock_node,
+               _BT_COMP_LOGE_NODE(clock_node,
                        "Missing `name` attribute in clock class.");
                ret = -EPERM;
                goto end;
@@ -4732,6 +4543,7 @@ int visit_clock_decl(struct ctx *ctx, struct ctf_node *clock_node)
        clock->offset_seconds = offset_seconds;
        clock->offset_cycles = offset_cycles;
        apply_clock_class_offset(ctx, clock);
+       apply_clock_class_is_absolute(ctx, clock);
        g_ptr_array_add(ctx->ctf_tc->clock_classes, clock);
        clock = NULL;
 
@@ -4760,7 +4572,7 @@ int visit_root_decl(struct ctx *ctx, struct ctf_node *root_decl_node)
                        root_decl_node->u.field_class_def.field_class_specifier_list,
                        &root_decl_node->u.field_class_def.field_class_declarators);
                if (ret) {
-                       _BT_LOGE_NODE(root_decl_node,
+                       _BT_COMP_LOGE_NODE(root_decl_node,
                                "Cannot add field class found in root scope.");
                        goto end;
                }
@@ -4769,7 +4581,7 @@ int visit_root_decl(struct ctx *ctx, struct ctf_node *root_decl_node)
                ret = visit_field_class_alias(ctx, root_decl_node->u.field_class_alias.target,
                        root_decl_node->u.field_class_alias.alias);
                if (ret) {
-                       _BT_LOGE_NODE(root_decl_node,
+                       _BT_COMP_LOGE_NODE(root_decl_node,
                                "Cannot add field class alias found in root scope.");
                        goto end;
                }
@@ -4784,7 +4596,7 @@ int visit_root_decl(struct ctx *ctx, struct ctf_node *root_decl_node)
                 */
                ret = visit_field_class_specifier_list(ctx, root_decl_node, &decl);
                if (ret) {
-                       _BT_LOGE_NODE(root_decl_node,
+                       _BT_COMP_LOGE_NODE(root_decl_node,
                                "Cannot visit root scope's field class: "
                                "ret=%d", ret);
                        BT_ASSERT(!decl);
@@ -4796,7 +4608,7 @@ int visit_root_decl(struct ctx *ctx, struct ctf_node *root_decl_node)
                break;
        }
        default:
-               _BT_LOGE_NODE(root_decl_node,
+               _BT_COMP_LOGE_NODE(root_decl_node,
                        "Unexpected node type: node-type=%d",
                        root_decl_node->type);
                ret = -EPERM;
@@ -4809,15 +4621,16 @@ end:
 
 BT_HIDDEN
 struct ctf_visitor_generate_ir *ctf_visitor_generate_ir_create(
-               bt_self_component_source *self_comp,
                const struct ctf_metadata_decoder_config *decoder_config)
 {
        struct ctx *ctx = NULL;
 
        /* Create visitor's context */
-       ctx = ctx_create(self_comp, decoder_config);
+       ctx = ctx_create(decoder_config);
        if (!ctx) {
-               BT_LOGE_STR("Cannot create visitor's context.");
+               BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, decoder_config->log_level,
+                       decoder_config->self_comp,
+                       "Cannot create visitor's context.");
                goto error;
        }
 
@@ -4843,7 +4656,7 @@ bt_trace_class *ctf_visitor_generate_ir_get_ir_trace_class(
 {
        struct ctx *ctx = (void *) visitor;
 
-       BT_ASSERT(ctx);
+       BT_ASSERT_DBG(ctx);
 
        if (ctx->trace_class) {
                bt_trace_class_get_ref(ctx->trace_class);
@@ -4858,8 +4671,8 @@ struct ctf_trace_class *ctf_visitor_generate_ir_borrow_ctf_trace_class(
 {
        struct ctx *ctx = (void *) visitor;
 
-       BT_ASSERT(ctx);
-       BT_ASSERT(ctx->ctf_tc);
+       BT_ASSERT_DBG(ctx);
+       BT_ASSERT_DBG(ctx->ctf_tc);
        return ctx->ctf_tc;
 }
 
@@ -4870,7 +4683,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
        int ret = 0;
        struct ctx *ctx = (void *) visitor;
 
-       BT_LOGI_STR("Visiting metadata's AST to generate CTF IR objects.");
+       BT_COMP_LOGI_STR("Visiting metadata's AST to generate CTF IR objects.");
 
        switch (node->type) {
        case NODE_ROOT:
@@ -4885,10 +4698,10 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                 * have the native byte order yet, and we don't have any
                 * trace block yet, then fail with EINCOMPLETE.
                 */
-               if (ctx->ctf_tc->default_byte_order == -1) {
+               if (ctx->ctf_tc->default_byte_order == CTF_BYTE_ORDER_UNKNOWN) {
                        bt_list_for_each_entry(iter, &node->u.root.trace, siblings) {
                                if (got_trace_decl) {
-                                       _BT_LOGE_NODE(node,
+                                       _BT_COMP_LOGE_NODE(node,
                                                "Duplicate trace (`trace` block).");
                                        ret = -1;
                                        goto end;
@@ -4896,7 +4709,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
 
                                ret = set_trace_byte_order(ctx, iter);
                                if (ret) {
-                                       _BT_LOGE_NODE(node,
+                                       _BT_COMP_LOGE_NODE(node,
                                                "Cannot set trace's native byte order: "
                                                "ret=%d", ret);
                                        goto end;
@@ -4906,7 +4719,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                        }
 
                        if (!got_trace_decl) {
-                               BT_LOGD_STR("Incomplete AST: need trace (`trace` block).");
+                               BT_COMP_LOGD_STR("Incomplete AST: need trace (`trace` block).");
                                ret = -EINCOMPLETE;
                                goto end;
                        }
@@ -4915,13 +4728,13 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                BT_ASSERT(ctx->ctf_tc->default_byte_order == CTF_BYTE_ORDER_LITTLE ||
                        ctx->ctf_tc->default_byte_order == CTF_BYTE_ORDER_BIG);
                BT_ASSERT(ctx->current_scope &&
-                               ctx->current_scope->parent_scope == NULL);
+                               !ctx->current_scope->parent_scope);
 
                /* Environment */
                bt_list_for_each_entry(iter, &node->u.root.env, siblings) {
                        ret = visit_env(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit trace's environment (`env` block) entry: "
                                        "ret=%d", ret);
                                goto end;
@@ -4929,7 +4742,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /*
                 * Visit clock blocks.
@@ -4937,7 +4750,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                bt_list_for_each_entry(iter, &node->u.root.clock, siblings) {
                        ret = visit_clock_decl(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit clock class: ret=%d",
                                        ret);
                                goto end;
@@ -4945,7 +4758,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /*
                 * Visit root declarations next, as they can be used by any
@@ -4955,7 +4768,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                                siblings) {
                        ret = visit_root_decl(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit root entry: ret=%d",
                                        ret);
                                goto end;
@@ -4963,22 +4776,22 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /* Callsite blocks are not supported */
                bt_list_for_each_entry(iter, &node->u.root.callsite, siblings) {
-                       _BT_LOGW_NODE(iter,
+                       _BT_COMP_LOGW_NODE(iter,
                                "\"callsite\" blocks are not supported as of this version.");
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /* Trace */
                bt_list_for_each_entry(iter, &node->u.root.trace, siblings) {
                        ret = visit_trace_decl(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit trace (`trace` block): "
                                        "ret=%d", ret);
                                goto end;
@@ -4986,13 +4799,13 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /* Streams */
                bt_list_for_each_entry(iter, &node->u.root.stream, siblings) {
                        ret = visit_stream_decl(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit stream class: ret=%d",
                                        ret);
                                goto end;
@@ -5000,13 +4813,13 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
 
                /* Events */
                bt_list_for_each_entry(iter, &node->u.root.event, siblings) {
                        ret = visit_event_decl(ctx, iter);
                        if (ret) {
-                               _BT_LOGE_NODE(iter,
+                               _BT_COMP_LOGE_NODE(iter,
                                        "Cannot visit event class: ret=%d",
                                        ret);
                                goto end;
@@ -5014,11 +4827,11 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
                }
 
                BT_ASSERT(ctx->current_scope &&
-                       ctx->current_scope->parent_scope == NULL);
+                       !ctx->current_scope->parent_scope);
                break;
        }
        default:
-               _BT_LOGE_NODE(node,
+               _BT_COMP_LOGE_NODE(node,
                        "Unexpected node type: node-type=%d",
                        node->type);
                ret = -EINVAL;
@@ -5027,7 +4840,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
 
        /* Update default clock classes */
        ret = ctf_trace_class_update_default_clock_classes(ctx->ctf_tc,
-               ctx->log_level);
+               &ctx->log_cfg);
        if (ret) {
                ret = -EINVAL;
                goto end;
@@ -5055,8 +4868,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
        }
 
        /* Resolve sequence lengths and variant tags */
-       ret = ctf_trace_class_resolve_field_classes(ctx->ctf_tc,
-               ctx->log_level);
+       ret = ctf_trace_class_resolve_field_classes(ctx->ctf_tc, &ctx->log_cfg);
        if (ret) {
                ret = -EINVAL;
                goto end;
@@ -5085,8 +4897,7 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
        }
 
        /* Validate what we have so far */
-       ret = ctf_trace_class_validate(ctx->ctf_tc,
-               ctx->log_level);
+       ret = ctf_trace_class_validate(ctx->ctf_tc, &ctx->log_cfg);
        if (ret) {
                ret = -EINVAL;
                goto end;
@@ -5098,11 +4909,11 @@ int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
         * classes, warn about it because they are never translated.
         */
        ctf_trace_class_warn_meaningless_header_fields(ctx->ctf_tc,
-               ctx->log_level);
+               &ctx->log_cfg);
 
        if (ctx->trace_class) {
                /* Copy new CTF metadata -> new IR metadata */
-               ret = ctf_trace_class_translate(ctx->self_comp,
+               ret = ctf_trace_class_translate(ctx->log_cfg.self_comp,
                                ctx->trace_class, ctx->ctf_tc);
                if (ret) {
                        ret = -EINVAL;
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