initial commit, 4.5 stable

editor/export/macho.h

@@ -0,0 +1,225 @@
+/**************************************************************************/
+/*  macho.h                                                               */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+// Mach-O binary object file format parser and editor.
+
+#include "core/io/file_access.h"
+#include "core/object/ref_counted.h"
+
+class MachO : public RefCounted {
+public:
+	struct MachHeader {
+		uint32_t cputype;
+		uint32_t cpusubtype;
+		uint32_t filetype;
+		uint32_t ncmds;
+		uint32_t sizeofcmds;
+		uint32_t flags;
+	};
+
+	enum LoadCommandID {
+		LC_SEGMENT = 0x00000001,
+		LC_SYMTAB = 0x00000002,
+		LC_SYMSEG = 0x00000003,
+		LC_THREAD = 0x00000004,
+		LC_UNIXTHREAD = 0x00000005,
+		LC_LOADFVMLIB = 0x00000006,
+		LC_IDFVMLIB = 0x00000007,
+		LC_IDENT = 0x00000008,
+		LC_FVMFILE = 0x00000009,
+		LC_PREPAGE = 0x0000000a,
+		LC_DYSYMTAB = 0x0000000b,
+		LC_LOAD_DYLIB = 0x0000000c,
+		LC_ID_DYLIB = 0x0000000d,
+		LC_LOAD_DYLINKER = 0x0000000e,
+		LC_ID_DYLINKER = 0x0000000f,
+		LC_PREBOUND_DYLIB = 0x00000010,
+		LC_ROUTINES = 0x00000011,
+		LC_SUB_FRAMEWORK = 0x00000012,
+		LC_SUB_UMBRELLA = 0x00000013,
+		LC_SUB_CLIENT = 0x00000014,
+		LC_SUB_LIBRARY = 0x00000015,
+		LC_TWOLEVEL_HINTS = 0x00000016,
+		LC_PREBIND_CKSUM = 0x00000017,
+		LC_LOAD_WEAK_DYLIB = 0x80000018,
+		LC_SEGMENT_64 = 0x00000019,
+		LC_ROUTINES_64 = 0x0000001a,
+		LC_UUID = 0x0000001b,
+		LC_RPATH = 0x8000001c,
+		LC_CODE_SIGNATURE = 0x0000001d,
+		LC_SEGMENT_SPLIT_INFO = 0x0000001e,
+		LC_REEXPORT_DYLIB = 0x8000001f,
+		LC_LAZY_LOAD_DYLIB = 0x00000020,
+		LC_ENCRYPTION_INFO = 0x00000021,
+		LC_DYLD_INFO = 0x00000022,
+		LC_DYLD_INFO_ONLY = 0x80000022,
+		LC_LOAD_UPWARD_DYLIB = 0x80000023,
+		LC_VERSION_MIN_MACOSX = 0x00000024,
+		LC_VERSION_MIN_IPHONEOS = 0x00000025,
+		LC_FUNCTION_STARTS = 0x00000026,
+		LC_DYLD_ENVIRONMENT = 0x00000027,
+		LC_MAIN = 0x80000028,
+		LC_DATA_IN_CODE = 0x00000029,
+		LC_SOURCE_VERSION = 0x0000002a,
+		LC_DYLIB_CODE_SIGN_DRS = 0x0000002b,
+		LC_ENCRYPTION_INFO_64 = 0x0000002c,
+		LC_LINKER_OPTION = 0x0000002d,
+		LC_LINKER_OPTIMIZATION_HINT = 0x0000002e,
+		LC_VERSION_MIN_TVOS = 0x0000002f,
+		LC_VERSION_MIN_WATCHOS = 0x00000030,
+		LC_BUILD_VERSION = 0x00000032,
+	};
+
+	enum PlatformID {
+		PLATFORM_UNKNOWN = 0,
+		PLATFORM_MACOS = 1,
+		PLATFORM_IOS = 2,
+		PLATFORM_TVOS = 3,
+		PLATFORM_WATCHOS = 4,
+		PLATFORM_BRIDGEOS = 5,
+		PLATFORM_MACCATALYST = 6,
+		PLATFORM_IOSSIMULATOR = 7,
+		PLATFORM_TVOSSIMULATOR = 8,
+		PLATFORM_WATCHOSSIMULATOR = 9,
+		PLATFORM_DRIVERKIT = 10,
+		PLATFORM_VISIONOS = 11,
+		PLATFORM_VISIONOSSIMULATOR = 12,
+	};
+
+	struct LoadCommandHeader {
+		uint32_t cmd;
+		uint32_t cmdsize;
+	};
+
+	struct LoadCommandSegment {
+		char segname[16];
+		uint32_t vmaddr;
+		uint32_t vmsize;
+		uint32_t fileoff;
+		uint32_t filesize;
+		uint32_t maxprot;
+		uint32_t initprot;
+		uint32_t nsects;
+		uint32_t flags;
+	};
+
+	struct LoadCommandSegment64 {
+		char segname[16];
+		uint64_t vmaddr;
+		uint64_t vmsize;
+		uint64_t fileoff;
+		uint64_t filesize;
+		uint32_t maxprot;
+		uint32_t initprot;
+		uint32_t nsects;
+		uint32_t flags;
+	};
+
+	struct Section {
+		char sectname[16];
+		char segname[16];
+		uint32_t addr;
+		uint32_t size;
+		uint32_t offset;
+		uint32_t align;
+		uint32_t reloff;
+		uint32_t nreloc;
+		uint32_t flags;
+		uint32_t reserved1;
+		uint32_t reserved2;
+	};
+
+	struct Section64 {
+		char sectname[16];
+		char segname[16];
+		uint64_t addr;
+		uint64_t size;
+		uint32_t offset;
+		uint32_t align;
+		uint32_t reloff;
+		uint32_t nreloc;
+		uint32_t flags;
+		uint32_t reserved1;
+		uint32_t reserved2;
+		uint32_t reserved3;
+	};
+
+private:
+	Ref<FileAccess> fa;
+	bool swap = false;
+
+	uint64_t lc_limit = 0;
+
+	uint64_t exe_limit = 0;
+	uint64_t exe_base = std::numeric_limits<uint64_t>::max(); // Start of first __text section.
+	uint32_t align = 0;
+	uint32_t cputype = 0;
+	uint32_t cpusubtype = 0;
+
+	uint64_t link_edit_offset = 0; // __LINKEDIT segment offset.
+	uint64_t signature_offset = 0; // Load command offset.
+
+	uint32_t seg_align(uint64_t p_vmaddr, uint32_t p_min, uint32_t p_max);
+	bool alloc_signature(uint64_t p_size);
+
+	static inline size_t PAD(size_t s, size_t a) {
+		return (a - s % a);
+	}
+
+public:
+	static bool is_macho(const String &p_path);
+	static uint32_t get_filetype(const String &p_path);
+
+	bool open_file(const String &p_path);
+
+	uint64_t get_exe_base();
+	uint64_t get_exe_limit();
+	int32_t get_align();
+	uint32_t get_cputype();
+	uint32_t get_cpusubtype();
+	uint64_t get_size();
+	uint64_t get_code_limit();
+
+	uint64_t get_signature_offset();
+	bool is_signed();
+
+	PackedByteArray get_cdhash_sha1();
+	PackedByteArray get_cdhash_sha256();
+
+	PackedByteArray get_requirements();
+
+	const Ref<FileAccess> get_file() const;
+	Ref<FileAccess> get_file();
+
+	uint64_t get_signature_size();
+	bool set_signature_size(uint64_t p_size);
+};