Happy new year to the wonderful Godot community!
2020 has been a tough year for most of us personally, but a good year for
Godot development nonetheless with a huge amount of work done towards Godot
4.0 and great improvements backported to the long-lived 3.2 branch.
We've had close to 400 contributors to engine code this year, authoring near
7,000 commit! (And that's only for the `master` branch and for the engine code,
there's a lot more when counting docs, demos and other first-party repos.)
Here's to a great year 2021 for all Godot users 🎆
166 lines
5.7 KiB
C++
166 lines
5.7 KiB
C++
/*************************************************************************/
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/* export.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "export.h"
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#include "core/os/file_access.h"
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#include "editor/editor_export.h"
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#include "platform/linuxbsd/logo.gen.h"
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#include "scene/resources/texture.h"
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static Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size);
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void register_linuxbsd_exporter() {
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Ref<EditorExportPlatformPC> platform;
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platform.instance();
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Ref<Image> img = memnew(Image(_linuxbsd_logo));
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Ref<ImageTexture> logo;
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logo.instance();
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logo->create_from_image(img);
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platform->set_logo(logo);
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platform->set_name("Linux/X11");
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platform->set_extension("x86");
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platform->set_extension("x86_64", "binary_format/64_bits");
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platform->set_release_32("linux_x11_32_release");
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platform->set_debug_32("linux_x11_32_debug");
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platform->set_release_64("linux_x11_64_release");
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platform->set_debug_64("linux_x11_64_debug");
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platform->set_os_name("X11");
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platform->set_chmod_flags(0755);
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platform->set_fixup_embedded_pck_func(&fixup_embedded_pck);
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EditorExport::get_singleton()->add_export_platform(platform);
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}
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static Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size) {
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// Patch the header of the "pck" section in the ELF file so that it corresponds to the embedded data
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FileAccess *f = FileAccess::open(p_path, FileAccess::READ_WRITE);
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if (!f) {
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return ERR_CANT_OPEN;
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}
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// Read and check ELF magic number
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{
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uint32_t magic = f->get_32();
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if (magic != 0x464c457f) { // 0x7F + "ELF"
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f->close();
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return ERR_FILE_CORRUPT;
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}
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}
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// Read program architecture bits from class field
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int bits = f->get_8() * 32;
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if (bits == 32 && p_embedded_size >= 0x100000000) {
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f->close();
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ERR_FAIL_V_MSG(ERR_INVALID_DATA, "32-bit executables cannot have embedded data >= 4 GiB.");
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}
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// Get info about the section header table
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int64_t section_table_pos;
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int64_t section_header_size;
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if (bits == 32) {
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section_header_size = 40;
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f->seek(0x20);
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section_table_pos = f->get_32();
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f->seek(0x30);
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} else { // 64
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section_header_size = 64;
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f->seek(0x28);
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section_table_pos = f->get_64();
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f->seek(0x3c);
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}
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int num_sections = f->get_16();
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int string_section_idx = f->get_16();
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// Load the strings table
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uint8_t *strings;
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{
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// Jump to the strings section header
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f->seek(section_table_pos + string_section_idx * section_header_size);
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// Read strings data size and offset
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int64_t string_data_pos;
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int64_t string_data_size;
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if (bits == 32) {
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f->seek(f->get_position() + 0x10);
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string_data_pos = f->get_32();
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string_data_size = f->get_32();
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} else { // 64
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f->seek(f->get_position() + 0x18);
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string_data_pos = f->get_64();
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string_data_size = f->get_64();
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}
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// Read strings data
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f->seek(string_data_pos);
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strings = (uint8_t *)memalloc(string_data_size);
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if (!strings) {
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f->close();
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return ERR_OUT_OF_MEMORY;
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}
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f->get_buffer(strings, string_data_size);
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}
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// Search for the "pck" section
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bool found = false;
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for (int i = 0; i < num_sections; ++i) {
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int64_t section_header_pos = section_table_pos + i * section_header_size;
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f->seek(section_header_pos);
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uint32_t name_offset = f->get_32();
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if (strcmp((char *)strings + name_offset, "pck") == 0) {
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// "pck" section found, let's patch!
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if (bits == 32) {
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f->seek(section_header_pos + 0x10);
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f->store_32(p_embedded_start);
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f->store_32(p_embedded_size);
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} else { // 64
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f->seek(section_header_pos + 0x18);
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f->store_64(p_embedded_start);
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f->store_64(p_embedded_size);
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}
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found = true;
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break;
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}
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}
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memfree(strings);
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f->close();
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return found ? OK : ERR_FILE_CORRUPT;
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}
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