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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
233 lines
6.2 KiB
C
233 lines
6.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* (C) Copyright Linaro, Ltd. 2018
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* (C) Copyright Arm Holdings. 2017
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*/
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#include <stdlib.h>
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#include <yaml.h>
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#include "dtc.h"
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#include "srcpos.h"
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char *yaml_error_name[] = {
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[YAML_NO_ERROR] = "no error",
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[YAML_MEMORY_ERROR] = "memory error",
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[YAML_READER_ERROR] = "reader error",
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[YAML_SCANNER_ERROR] = "scanner error",
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[YAML_PARSER_ERROR] = "parser error",
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[YAML_COMPOSER_ERROR] = "composer error",
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[YAML_WRITER_ERROR] = "writer error",
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[YAML_EMITTER_ERROR] = "emitter error",
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};
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#define yaml_emitter_emit_or_die(emitter, event) ( \
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{ \
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if (!yaml_emitter_emit(emitter, event)) \
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die("yaml '%s': %s in %s, line %i\n", \
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yaml_error_name[(emitter)->error], \
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(emitter)->problem, __func__, __LINE__); \
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})
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static void yaml_propval_int(yaml_emitter_t *emitter, struct marker *markers, char *data, int len, int width)
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{
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yaml_event_t event;
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void *tag;
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int off, start_offset = markers->offset;
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switch(width) {
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case 1: tag = "!u8"; break;
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case 2: tag = "!u16"; break;
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case 4: tag = "!u32"; break;
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case 8: tag = "!u64"; break;
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default:
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die("Invalid width %i", width);
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}
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assert(len % width == 0);
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yaml_sequence_start_event_initialize(&event, NULL,
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(yaml_char_t *)tag, width == 4, YAML_FLOW_SEQUENCE_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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for (off = 0; off < len; off += width) {
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char buf[32];
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struct marker *m;
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bool is_phandle = false;
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switch(width) {
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case 1:
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sprintf(buf, "0x%"PRIx8, *(uint8_t*)(data + off));
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break;
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case 2:
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sprintf(buf, "0x%"PRIx16, fdt16_to_cpu(*(fdt16_t*)(data + off)));
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break;
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case 4:
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sprintf(buf, "0x%"PRIx32, fdt32_to_cpu(*(fdt32_t*)(data + off)));
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m = markers;
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is_phandle = false;
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for_each_marker_of_type(m, REF_PHANDLE) {
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if (m->offset == (start_offset + off)) {
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is_phandle = true;
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break;
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}
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}
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break;
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case 8:
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sprintf(buf, "0x%"PRIx64, fdt64_to_cpu(*(fdt64_t*)(data + off)));
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break;
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}
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if (is_phandle)
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t*)"!phandle", (yaml_char_t *)buf,
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strlen(buf), 0, 0, YAML_PLAIN_SCALAR_STYLE);
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else
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t*)YAML_INT_TAG, (yaml_char_t *)buf,
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strlen(buf), 1, 1, YAML_PLAIN_SCALAR_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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}
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yaml_sequence_end_event_initialize(&event);
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yaml_emitter_emit_or_die(emitter, &event);
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}
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static void yaml_propval_string(yaml_emitter_t *emitter, char *str, int len)
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{
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yaml_event_t event;
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int i;
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assert(str[len-1] == '\0');
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/* Make sure the entire string is in the lower 7-bit ascii range */
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for (i = 0; i < len; i++)
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assert(isascii(str[i]));
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)str,
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len-1, 0, 1, YAML_DOUBLE_QUOTED_SCALAR_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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}
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static void yaml_propval(yaml_emitter_t *emitter, struct property *prop)
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{
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yaml_event_t event;
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int len = prop->val.len;
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struct marker *m = prop->val.markers;
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/* Emit the property name */
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)prop->name,
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strlen(prop->name), 1, 1, YAML_PLAIN_SCALAR_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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/* Boolean properties are easiest to deal with. Length is zero, so just emit 'true' */
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if (len == 0) {
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_BOOL_TAG,
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(yaml_char_t*)"true",
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strlen("true"), 1, 0, YAML_PLAIN_SCALAR_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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return;
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}
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if (!m)
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die("No markers present in property '%s' value\n", prop->name);
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yaml_sequence_start_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_SEQ_TAG, 1, YAML_FLOW_SEQUENCE_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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for_each_marker(m) {
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int chunk_len;
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char *data = &prop->val.val[m->offset];
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if (m->type < TYPE_UINT8)
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continue;
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chunk_len = type_marker_length(m) ? : len;
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assert(chunk_len > 0);
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len -= chunk_len;
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switch(m->type) {
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case TYPE_UINT16:
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yaml_propval_int(emitter, m, data, chunk_len, 2);
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break;
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case TYPE_UINT32:
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yaml_propval_int(emitter, m, data, chunk_len, 4);
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break;
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case TYPE_UINT64:
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yaml_propval_int(emitter, m, data, chunk_len, 8);
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break;
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case TYPE_STRING:
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yaml_propval_string(emitter, data, chunk_len);
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break;
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default:
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yaml_propval_int(emitter, m, data, chunk_len, 1);
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break;
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}
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}
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yaml_sequence_end_event_initialize(&event);
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yaml_emitter_emit_or_die(emitter, &event);
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}
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static void yaml_tree(struct node *tree, yaml_emitter_t *emitter)
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{
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struct property *prop;
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struct node *child;
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yaml_event_t event;
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if (tree->deleted)
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return;
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yaml_mapping_start_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_MAP_TAG, 1, YAML_ANY_MAPPING_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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for_each_property(tree, prop)
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yaml_propval(emitter, prop);
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/* Loop over all the children, emitting them into the map */
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for_each_child(tree, child) {
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yaml_scalar_event_initialize(&event, NULL,
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(yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)child->name,
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strlen(child->name), 1, 0, YAML_PLAIN_SCALAR_STYLE);
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yaml_emitter_emit_or_die(emitter, &event);
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yaml_tree(child, emitter);
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}
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yaml_mapping_end_event_initialize(&event);
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yaml_emitter_emit_or_die(emitter, &event);
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}
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void dt_to_yaml(FILE *f, struct dt_info *dti)
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{
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yaml_emitter_t emitter;
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yaml_event_t event;
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yaml_emitter_initialize(&emitter);
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yaml_emitter_set_output_file(&emitter, f);
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yaml_stream_start_event_initialize(&event, YAML_UTF8_ENCODING);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_document_start_event_initialize(&event, NULL, NULL, NULL, 0);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_sequence_start_event_initialize(&event, NULL, (yaml_char_t *)YAML_SEQ_TAG, 1, YAML_ANY_SEQUENCE_STYLE);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_tree(dti->dt, &emitter);
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yaml_sequence_end_event_initialize(&event);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_document_end_event_initialize(&event, 0);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_stream_end_event_initialize(&event);
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yaml_emitter_emit_or_die(&emitter, &event);
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yaml_emitter_delete(&emitter);
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}
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