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Edit File: yamltree.c

// SPDX-License-Identifier: GPL-2.0-or-later /* * (C) Copyright Linaro, Ltd. 2018 * (C) Copyright Arm Holdings. 2017 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. */ #include <stdlib.h> #include <yaml.h> #include "dtc.h" #include "srcpos.h" char *yaml_error_name[] = { [YAML_NO_ERROR] = "no error", [YAML_MEMORY_ERROR] = "memory error", [YAML_READER_ERROR] = "reader error", [YAML_SCANNER_ERROR] = "scanner error", [YAML_PARSER_ERROR] = "parser error", [YAML_COMPOSER_ERROR] = "composer error", [YAML_WRITER_ERROR] = "writer error", [YAML_EMITTER_ERROR] = "emitter error", }; #define yaml_emitter_emit_or_die(emitter, event) ( \ { \ if (!yaml_emitter_emit(emitter, event)) \ die("yaml '%s': %s in %s, line %i\n", \ yaml_error_name[(emitter)->error], \ (emitter)->problem, __func__, __LINE__); \ }) static void yaml_propval_int(yaml_emitter_t *emitter, struct marker *markers, char *data, unsigned int len, int width) { yaml_event_t event; void *tag; unsigned int off, start_offset = markers->offset; switch(width) { case 1: tag = "!u8"; break; case 2: tag = "!u16"; break; case 4: tag = "!u32"; break; case 8: tag = "!u64"; break; default: die("Invalid width %i", width); } assert(len % width == 0); yaml_sequence_start_event_initialize(&event, NULL, (yaml_char_t *)tag, width == 4, YAML_FLOW_SEQUENCE_STYLE); yaml_emitter_emit_or_die(emitter, &event); for (off = 0; off < len; off += width) { char buf[32]; struct marker *m; bool is_phandle = false; switch(width) { case 1: sprintf(buf, "0x%"PRIx8, *(uint8_t*)(data + off)); break; case 2: sprintf(buf, "0x%"PRIx16, dtb_ld16(data + off)); break; case 4: sprintf(buf, "0x%"PRIx32, dtb_ld32(data + off)); m = markers; is_phandle = false; for_each_marker_of_type(m, REF_PHANDLE) { if (m->offset == (start_offset + off)) { is_phandle = true; break; } } break; case 8: sprintf(buf, "0x%"PRIx64, dtb_ld64(data + off)); break; } if (is_phandle) yaml_scalar_event_initialize(&event, NULL, (yaml_char_t*)"!phandle", (yaml_char_t *)buf, strlen(buf), 0, 0, YAML_PLAIN_SCALAR_STYLE); else yaml_scalar_event_initialize(&event, NULL, (yaml_char_t*)YAML_INT_TAG, (yaml_char_t *)buf, strlen(buf), 1, 1, YAML_PLAIN_SCALAR_STYLE); yaml_emitter_emit_or_die(emitter, &event); } yaml_sequence_end_event_initialize(&event); yaml_emitter_emit_or_die(emitter, &event); } static void yaml_propval_string(yaml_emitter_t *emitter, char *str, int len) { yaml_event_t event; int i; assert(str[len-1] == '\0'); /* Make sure the entire string is in the lower 7-bit ascii range */ for (i = 0; i < len; i++) assert(isascii(str[i])); yaml_scalar_event_initialize(&event, NULL, (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)str, len-1, 0, 1, YAML_DOUBLE_QUOTED_SCALAR_STYLE); yaml_emitter_emit_or_die(emitter, &event); } static void yaml_propval(yaml_emitter_t *emitter, struct property *prop) { yaml_event_t event; unsigned int len = prop->val.len; struct marker *m = prop->val.markers; /* Emit the property name */ yaml_scalar_event_initialize(&event, NULL, (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)prop->name, strlen(prop->name), 1, 1, YAML_PLAIN_SCALAR_STYLE); yaml_emitter_emit_or_die(emitter, &event); /* Boolean properties are easiest to deal with. Length is zero, so just emit 'true' */ if (len == 0) { yaml_scalar_event_initialize(&event, NULL, (yaml_char_t *)YAML_BOOL_TAG, (yaml_char_t*)"true", strlen("true"), 1, 0, YAML_PLAIN_SCALAR_STYLE); yaml_emitter_emit_or_die(emitter, &event); return; } if (!m) die("No markers present in property '%s' value\n", prop->name); yaml_sequence_start_event_initialize(&event, NULL, (yaml_char_t *)YAML_SEQ_TAG, 1, YAML_FLOW_SEQUENCE_STYLE); yaml_emitter_emit_or_die(emitter, &event); for_each_marker(m) { int chunk_len; char *data = &prop->val.val[m->offset]; if (m->type < TYPE_UINT8) continue; chunk_len = type_marker_length(m) ? : len; assert(chunk_len > 0); len -= chunk_len; switch(m->type) { case TYPE_UINT16: yaml_propval_int(emitter, m, data, chunk_len, 2); break; case TYPE_UINT32: yaml_propval_int(emitter, m, data, chunk_len, 4); break; case TYPE_UINT64: yaml_propval_int(emitter, m, data, chunk_len, 8); break; case TYPE_STRING: yaml_propval_string(emitter, data, chunk_len); break; default: yaml_propval_int(emitter, m, data, chunk_len, 1); break; } } yaml_sequence_end_event_initialize(&event); yaml_emitter_emit_or_die(emitter, &event); } static void yaml_tree(struct node *tree, yaml_emitter_t *emitter) { struct property *prop; struct node *child; yaml_event_t event; if (tree->deleted) return; yaml_mapping_start_event_initialize(&event, NULL, (yaml_char_t *)YAML_MAP_TAG, 1, YAML_ANY_MAPPING_STYLE); yaml_emitter_emit_or_die(emitter, &event); for_each_property(tree, prop) yaml_propval(emitter, prop); /* Loop over all the children, emitting them into the map */ for_each_child(tree, child) { yaml_scalar_event_initialize(&event, NULL, (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)child->name, strlen(child->name), 1, 0, YAML_PLAIN_SCALAR_STYLE); yaml_emitter_emit_or_die(emitter, &event); yaml_tree(child, emitter); } yaml_mapping_end_event_initialize(&event); yaml_emitter_emit_or_die(emitter, &event); } void dt_to_yaml(FILE *f, struct dt_info *dti) { yaml_emitter_t emitter; yaml_event_t event; yaml_emitter_initialize(&emitter); yaml_emitter_set_output_file(&emitter, f); yaml_stream_start_event_initialize(&event, YAML_UTF8_ENCODING); yaml_emitter_emit_or_die(&emitter, &event); yaml_document_start_event_initialize(&event, NULL, NULL, NULL, 0); yaml_emitter_emit_or_die(&emitter, &event); yaml_sequence_start_event_initialize(&event, NULL, (yaml_char_t *)YAML_SEQ_TAG, 1, YAML_ANY_SEQUENCE_STYLE); yaml_emitter_emit_or_die(&emitter, &event); yaml_tree(dti->dt, &emitter); yaml_sequence_end_event_initialize(&event); yaml_emitter_emit_or_die(&emitter, &event); yaml_document_end_event_initialize(&event, 0); yaml_emitter_emit_or_die(&emitter, &event); yaml_stream_end_event_initialize(&event); yaml_emitter_emit_or_die(&emitter, &event); yaml_emitter_delete(&emitter); }