Changeset 2950 for trunk/kLdr/kLdrModMachO.h

Timestamp:

Jan 16, 2007, 3:22:55 AM (19 years ago)

Author:

bird

Message:

Work in progress.

File:

• trunk/kLdr/kLdrModMachO.h (modified) (6 diffs)

trunk/kLdr/kLdrModMachO.h

@@ -25 +25 @@
     uint32_t        magic;
     uint32_t        nfat_arch;
-} fat_header;
+} fat_header_t;
 
 /**
@@ -37 +37 @@
     uint32_t        size;
     uint32_t        align;          /**< Power of 2. */
-} fat_arch;
+} fat_arch_t;
 
 
@@ -66 +66 @@
     uint32_t        sizeofcmds;
     uint32_t        flags;
-} mach_header_32;
+} mach_header_32_t;
 
 
@@ -96 +96 @@
     uint32_t        flags;
     uint32_t        reserved;       /**< (for proper struct and command alignment I guess) */
-} mach_header_64;
-
-
-
-/** @name CPU types / bits.
+} mach_header_64_t;
+
+
+/** @name File types (mach_header_64::filetype, mach_header_32::filetype)
+ * @{
+ */
+#define MH_OBJECT           UINT32_C(1) /**< Object (relocatable). */
+#define MH_EXECUTE          UINT32_C(2) /**< Executable (demand paged). */
+#define MH_FVMLIB           UINT32_C(3) /**< Fixed VM shared library. */
+#define MH_CORE             UINT32_C(4) /**< Core file. */
+#define MH_PRELOAD          UINT32_C(5) /**< Preloaded executable. */
+#define MH_DYLIB            UINT32_C(6) /**< Dynamically bound shared library. */
+#define MH_DYLINKER         UINT32_C(7) /**< Dynamic linker. */
+#define MH_BUNDLE           UINT32_C(8) /**< Dymamically bound bundle. */
+#define MH_DYLIB_STUB       UINT32_C(9) /**< Shared library stub for static linking. */
+#define MH_DSYM             UINT32_C(10)/**< Debug symbols. */
+
+/** @} */
+
+
+/** @name Mach-O Header flags (mach_header_64::flags, mach_header_32::flags)
+ * @{
+ */
+#define MH_NOUNDEFS                 UINT32_C(0x00000001) /**< No undefined symbols. */
+#define MH_INCRLINK                 UINT32_C(0x00000002) /**< Partial increment link output. */
+#define MH_DYLDLINK                 UINT32_C(0x00000004) /**< Food for the dynamic linker, not for ld. */
+#define MH_BINDATLOAD               UINT32_C(0x00000008) /**< Bind all undefined symbols at load time. */
+#define MH_PREBOUND                 UINT32_C(0x00000010) /**< Contains prebound undefined symbols. */
+#define MH_SPLIT_SEGS               UINT32_C(0x00000020) /**< Read-only and read-write segments are split. */
+#define MH_LAZY_INIT                UINT32_C(0x00000040) /**< Obsolete flag for doing lazy init when data is written. */
+#define MH_TWOLEVEL                 UINT32_C(0x00000080) /**< Uses two-level name space bindings. */
+#define MH_FORCE_FLAT               UINT32_C(0x00000100) /**< Task: The executable forces all images to use flat name space bindings. */
+#define MH_NOMULTIDEFS              UINT32_C(0x00000200) /**< No multiple symbol definitions, safe to use two-level namespace hints. */
+#define MH_NOFIXPREBINDING          UINT32_C(0x00000400) /**< The dynamic linker should not notify the prebinding agent about this executable. */
+#define MH_PREBINDABLE              UINT32_C(0x00000800) /**< Not prebound, but it can be. Invalid if MH_PREBOUND is set. */
+#define MH_ALLMODSBOUND             UINT32_C(0x00001000) /**< Binds to all two-level namespace modules of preqs. Requires MH_PREBINDABLE and MH_TWOLEVEL to be set. */
+#define MH_SUBSECTIONS_VIA_SYMBOLS  UINT32_C(0x00002000) /**< Safe to divide sections into sub-sections via symbols for dead code stripping. */
+#define MH_CANONICAL                UINT32_C(0x00004000) /**< Canonicalized via unprebind. */
+#define MH_WEAK_DEFINES             UINT32_C(0x00008000) /**< The (finally) linked image has weak symbols. */
+#define MH_BINDS_TO_WEAK            UINT32_C(0x00010000) /**< The (finally) linked image uses weak symbols. */
+#define MH_ALLOW_STACK_EXECUTION    UINT32_C(0x00020000) /**< Task: allow stack execution. (MH_EXECUTE only) */
+/** @} */
+
+
+/** @name CPU types / bits (mach_header_64::cputype, mach_header_32::cputype, fat_arch::cputype)
  * @{
  */
@@ -120 +160 @@
 /** @} */
 
-/** @name CPU subtypes
+
+/** @name CPU subtypes (mach_header_64::cpusubtype, mach_header_32::cpusubtype, fat_arch::cpusubtype)
  * @{ */
 #define CPU_SUBTYPE_MULTIPLE        INT32_C(-1)
@@ -231 +272 @@
 /** @} */
 
-#endif
-
+
+/**
+ * The load command common core structure.
+ *
+ * After the Mach-O header follows an array of variable sized
+ * load command which all has this header in common.
+ */
+typedef struct load_command
+{
+    uint32_t        cmd;            /**< The load command id. */
+    uint32_t        cmdsize;        /**< The size of the command (including this header?). */
+} load_command_t;
+
+/** @name Load Command IDs (load_command::cmd)
+ * @{
+ */
+/** Flag that when set requires the dynamic linker to fail if it doesn't
+ * grok the command. The dynamic linker will otherwise ignore commands it
+ * doesn't understand. Introduced with Mac OS X 10.1. */
+#define LC_REQ_DYLD         UINT32_C(0x80000000)
+
+#define LC_SEGMENT_32       UINT32_C(0x01)  /**< Segment to be mapped (32-bit). See segment_command_32. */
+#define LC_SYMTAB           UINT32_C(0x02)  /**< 'stab' symbol table. See symtab_command. */
+#define LC_SYMSEG           UINT32_C(0x03)  /**< Obsoleted gdb symbol table. */
+#define LC_THREAD           UINT32_C(0x04)  /**< Thread. See thread_command. */
+#define LC_UNIXTHREAD       UINT32_C(0x05)  /**< Unix thread (includes stack and stuff). See thread_command. */
+#define LC_LOADFVMLIB       UINT32_C(0x06)  /**< Load a specified fixed VM shared library  (obsolete?). See fvmlib_command. */
+#define LC_IDFVMLIB         UINT32_C(0x07)  /**< Fixed VM shared library id (obsolete?). See fvmlib_command. */
+#define LC_IDENT            UINT32_C(0x08)  /**< Identification info (obsolete). See ident_command. */
+#define LC_FVMFILE          UINT32_C(0x09)  /**< Fixed VM file inclusion (internal). See fvmfile_command. */
+#define LC_PREPAGE          UINT32_C(0x0a)  /**< Prepage command (internal). See ?? */
+#define LC_DYSYMTAB         UINT32_C(0x0b)  /**< Symbol table for dynamic linking. See dysymtab_command. */
+#define LC_LOAD_DYLIB       UINT32_C(0x0c)  /**< Load a dynamically linked shared library. See dylib_command. */
+#define LC_ID_DYLIB         UINT32_C(0x0d)  /**< Dynamically linked share library ident. See dylib_command. */
+#define LC_LOAD_DYLINKER    UINT32_C(0x0e)  /**< Load a dynamical link editor. See dylinker_command. */
+#define LC_ID_DYLINKER      UINt32_C(0x0f)  /**< Dynamic link editor ident. See dylinker_command. */
+#define LC_PREBOUND_DYLIB   UINT32_C(0x10)  /**< Prebound modules for dynamically linking of a shared lib. See prebound_dylib_command. */
+#define LC_ROUTINES         UINT32_C(0x11)  /**< Image routines. See routines_command_32. */
+#define LC_SUB_FRAMEWORK    UINT32_C(0x12)  /**< Sub framework. See sub_framework_command. */
+#define LC_SUB_UMBRELLA     UINT32_C(0x13)  /**< Sub umbrella. See sub_umbrella_command. */
+#define LC_SUB_CLIENT       UINT32_C(0x14)  /**< Sub client. See sub_client_command.
+#define LC_SUB_LIBRARY      UINT32_C(0x15)  /**< Sub library. See sub_library_command. */
+#define LC_TWOLEVEL_HINTS   UINT32_C(0x16)  /**< Two-level namespace lookup hints. See twolevel_hints_command. */
+#define LC_PREBIND_CKSUM    UINT32_C(0x17)  /**< Prebind checksum. See prebind_cksum_command. */
+#define LC_LOAD_WEAK_DYLIB (UINT32_C(0x18) | LC_REQ_DYLD) /**< Dylib that can be missing, all symbols weak. See dylib_command. */
+#define LC_SEGMENT_64       UINT32_C(0x19)  /**< segment to be mapped (64-bit). See segment_command_32. */
+#define LC_ROUTINES_64      UINT32_C(0x1a)  /**< Image routines (64-bit). See routines_command_32. */
+#define LC_UUID             UINT32_C(0x1b)  /**< The UUID of the object module. See uuid_command.  */
+/** @} */
+
+#endif
+