/*************************************************************************/ /* export.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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: */ /* */ /* 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. */ /*************************************************************************/ #include "export.h" #include "core/os/file_access.h" #include "editor/editor_export.h" #include "platform/x11/logo.gen.h" #include "scene/resources/texture.h" static Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size); void register_x11_exporter() { Ref<EditorExportPlatformPC> platform; platform.instance(); Ref<Image> img = memnew(Image(_x11_logo)); Ref<ImageTexture> logo; logo.instance(); logo->create_from_image(img); platform->set_logo(logo); platform->set_name("Linux/X11"); platform->set_extension("x86"); platform->set_extension("x86_64", "binary_format/64_bits"); platform->set_release_32("linux_x11_32_release"); platform->set_debug_32("linux_x11_32_debug"); platform->set_release_64("linux_x11_64_release"); platform->set_debug_64("linux_x11_64_debug"); platform->set_os_name("X11"); platform->set_chmod_flags(0755); platform->set_fixup_embedded_pck_func(&fixup_embedded_pck); EditorExport::get_singleton()->add_export_platform(platform); } static Error fixup_embedded_pck(const String &p_path, int64_t p_embedded_start, int64_t p_embedded_size) { // Patch the header of the "pck" section in the ELF file so that it corresponds to the embedded data FileAccess *f = FileAccess::open(p_path, FileAccess::READ_WRITE); if (!f) { return ERR_CANT_OPEN; } // Read and check ELF magic number { uint32_t magic = f->get_32(); if (magic != 0x464c457f) { // 0x7F + "ELF" f->close(); return ERR_FILE_CORRUPT; } } // Read program architecture bits from class field int bits = f->get_8() * 32; if (bits == 32 && p_embedded_size >= 0x100000000) { f->close(); ERR_FAIL_V_MSG(ERR_INVALID_DATA, "32-bit executables cannot have embedded data >= 4 GiB."); } // Get info about the section header table int64_t section_table_pos; int64_t section_header_size; if (bits == 32) { section_header_size = 40; f->seek(0x20); section_table_pos = f->get_32(); f->seek(0x30); } else { // 64 section_header_size = 64; f->seek(0x28); section_table_pos = f->get_64(); f->seek(0x3c); } int num_sections = f->get_16(); int string_section_idx = f->get_16(); // Load the strings table uint8_t *strings; { // Jump to the strings section header f->seek(section_table_pos + string_section_idx * section_header_size); // Read strings data size and offset int64_t string_data_pos; int64_t string_data_size; if (bits == 32) { f->seek(f->get_position() + 0x10); string_data_pos = f->get_32(); string_data_size = f->get_32(); } else { // 64 f->seek(f->get_position() + 0x18); string_data_pos = f->get_64(); string_data_size = f->get_64(); } // Read strings data f->seek(string_data_pos); strings = (uint8_t *)memalloc(string_data_size); if (!strings) { f->close(); return ERR_OUT_OF_MEMORY; } f->get_buffer(strings, string_data_size); } // Search for the "pck" section bool found = false; for (int i = 0; i < num_sections; ++i) { int64_t section_header_pos = section_table_pos + i * section_header_size; f->seek(section_header_pos); uint32_t name_offset = f->get_32(); if (strcmp((char *)strings + name_offset, "pck") == 0) { // "pck" section found, let's patch! if (bits == 32) { f->seek(section_header_pos + 0x10); f->store_32(p_embedded_start); f->store_32(p_embedded_size); } else { // 64 f->seek(section_header_pos + 0x18); f->store_64(p_embedded_start); f->store_64(p_embedded_size); } found = true; break; } } memfree(strings); f->close(); return found ? OK : ERR_FILE_CORRUPT; }