Add support for new load commands added by Apple to the MACH-O file format.

bfd	* mach-o.h: Add new enums for BFD_MACH_O_PLATFORM_MACOS,
	BFD_MACH_O_PLATFORM_IOS, BFD_MACH_O_PLATFORM_TVOS,
	BFD_MACH_O_PLATFORM_WATCHOS, BFD_MACH_O_PLATFORM_BRIDGEOS,
	BFD_MACH_O_TOOL_CLANG, BFD_MACH_O_TOOL_SWIFT, BFD_MACH_O_TOOL_LD.
	(struct bfd_mach_o_note_command): New.
	(struct bfd_mach_o_build_version_tool): New.
	(struct bfd_mach_o_build_version_command): New.
	(bfd_mach_o_read_version_min): Don't split version into
	a few fields. Rename reserved to sdk.
	* mach-o.c (bfd_mach_o_read_version_min): Don't split version into a
	few fields. Rename reserved to sdk.
	(bfd_mach_o_read_command): Handle LC_VERSION_MIN_TVOS, LC_NOTE,
	LC_BUILD_VERSION.
	(bfd_mach_o_read_note): New.
	(bfd_mach_o_read_build_version): New.

	PR 23728
binutils* od-macho.c (printf_version): New.
	(dump_load_command): Use it to print version. Print sdk version. Print
	version info for watchOS and tvOS. Print LC_NOTE, LC_BUILD_VERSION.
	(dump_buld_version): New.
	(bfd_mach_o_platform_name): New
	(bfd_mach_o_tool_name): New

	* mach-o/external.h (mach_o_nversion_min_command_external): Rename
	reserved to sdk.
	(mach_o_note_command_external): New.
	(mach_o_build_version_command_external): New.
	* mach-o/loader.h (BFD_MACH_O_LC_VERSION_MIN_TVOS): Define.
	(BFD_MACH_O_LC_NOTE): Define.

2 files changed, 45 insertions, 28 deletions

diff --git a/include/mach-o/external.h b/include/mach-o/external.h
index 2609bad9..bf3c0c8 100644
--- a/include/mach-o/external.h
+++ b/include/mach-o/external.h
@@ -308,7 +308,7 @@ struct mach_o_twolevel_hints_command_external
 struct mach_o_version_min_command_external
 {
   unsigned char version[4];
-  unsigned char reserved[4];
+  unsigned char sdk[4];
 };
 
 struct mach_o_encryption_info_command_external
@@ -345,12 +345,27 @@ struct mach_o_source_version_command_external
 				   and 24 bits for A.  */
 };
 
+struct mach_o_note_command_external
+{
+  unsigned char data_owner[16]; /* Owner name for this note.  */
+  unsigned char offset[8];      /* File offset of the note.  */
+  unsigned char size[8];        /* Length of the note.  */
+};
+
+struct mach_o_build_version_command_external
+{
+  unsigned char platform[4];    /* Target platform.  */
+  unsigned char minos[4];       /* X.Y.Z is encoded in nibbles xxxx.yy.zz.  */
+  unsigned char sdk[4];         /* X.Y.Z is encoded in nibbles xxxx.yy.zz.  */
+  unsigned char ntools[4];      /* Number of tool entries following this.  */
+};
+
 /* The LD_DATA_IN_CODE command use a linkedit_data_command that points to
    a table of entries.  */
 
 struct mach_o_data_in_code_entry_external
 {
-  unsigned char offset[4];	/* Offset from the mach_header. */
+  unsigned char offset[4];	/* Offset from the mach_header.  */
   unsigned char length[2];	/* Number of bytes.  */
   unsigned char kind[2];	/* Kind.  See BFD_MACH_O_DICE_ values.  */
 };
diff --git a/include/mach-o/loader.h b/include/mach-o/loader.h
index 9abc51c..7b0a806 100644
--- a/include/mach-o/loader.h
+++ b/include/mach-o/loader.h
@@ -161,32 +161,34 @@ typedef enum bfd_mach_o_load_command_type
   /* Load a dynamically linked shared library that is allowed to be
        missing (weak).  */
   BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18,
-  BFD_MACH_O_LC_SEGMENT_64 = 0x19,	/* 64-bit segment of this file to be
-                                           mapped.  */
-  BFD_MACH_O_LC_ROUTINES_64 = 0x1a,     /* Address of the dyld init routine
-                                           in a dylib.  */
-  BFD_MACH_O_LC_UUID = 0x1b,            /* 128-bit UUID of the executable.  */
-  BFD_MACH_O_LC_RPATH = 0x1c,		/* Run path addiions.  */
-  BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d,	/* Local of code signature.  */
-  BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg.  */
-  BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,  /* Load and re-export lib.  */
-  BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use.  */
-  BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21, /* Encrypted segment info.  */
-  BFD_MACH_O_LC_DYLD_INFO = 0x22,	/* Compressed dyld information.  */
-  BFD_MACH_O_LC_LOAD_UPWARD_DYLIB = 0x23, /* Load upward dylib.  */
-  BFD_MACH_O_LC_VERSION_MIN_MACOSX = 0x24,   /* Minimal MacOSX version.  */
-  BFD_MACH_O_LC_VERSION_MIN_IPHONEOS = 0x25, /* Minimal IOS version.  */
-  BFD_MACH_O_LC_FUNCTION_STARTS = 0x26,  /* Compressed table of func start.  */
-  BFD_MACH_O_LC_DYLD_ENVIRONMENT = 0x27, /* Env variable string for dyld.  */
-  BFD_MACH_O_LC_MAIN = 0x28,             /* Entry point.  */
-  BFD_MACH_O_LC_DATA_IN_CODE = 0x29,     /* Table of non-instructions.  */
-  BFD_MACH_O_LC_SOURCE_VERSION = 0x2a,   /* Source version.  */
-  BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS = 0x2b, /* DRs from dylibs.  */
-  BFD_MACH_O_LC_ENCRYPTION_INFO_64 = 0x2c, /* Encrypted 64 bit seg info.  */
-  BFD_MACH_O_LC_LINKER_OPTIONS = 0x2d,	/* Linker options.  */
-  BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT = 0x2e, /* Optimization hints.  */
-  BFD_MACH_O_LC_VERSION_MIN_WATCHOS = 0x30, /* Minimal WatchOS version.  */
-  BFD_MACH_O_LC_BUILD_VERSION = 0x32     /* Records linker, SDK, OS, and tools version used.  */
+  BFD_MACH_O_LC_SEGMENT_64 = 0x19,		/* 64-bit segment of this file to be
+						   mapped.  */
+  BFD_MACH_O_LC_ROUTINES_64 = 0x1a,     	/* Address of the dyld init routine
+						   in a dylib.  */
+  BFD_MACH_O_LC_UUID = 0x1b,            	/* 128-bit UUID of the executable.  */
+  BFD_MACH_O_LC_RPATH = 0x1c,			/* Run path addiions.  */
+  BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d,		/* Local of code signature.  */
+  BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e,	/* Local of info to split seg.  */
+  BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,		/* Load and re-export lib.  */
+  BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20,		/* Delay load of lib until use.  */
+  BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21,		/* Encrypted segment info.  */
+  BFD_MACH_O_LC_DYLD_INFO = 0x22,		/* Compressed dyld information.  */
+  BFD_MACH_O_LC_LOAD_UPWARD_DYLIB = 0x23,	/* Load upward dylib.  */
+  BFD_MACH_O_LC_VERSION_MIN_MACOSX = 0x24,	/* Minimal MacOSX version.  */
+  BFD_MACH_O_LC_VERSION_MIN_IPHONEOS = 0x25,	/* Minimal IOS version.  */
+  BFD_MACH_O_LC_FUNCTION_STARTS = 0x26,  	/* Compressed table of func start.  */
+  BFD_MACH_O_LC_DYLD_ENVIRONMENT = 0x27, 	/* Env variable string for dyld.  */
+  BFD_MACH_O_LC_MAIN = 0x28,             	/* Entry point.  */
+  BFD_MACH_O_LC_DATA_IN_CODE = 0x29,     	/* Table of non-instructions.  */
+  BFD_MACH_O_LC_SOURCE_VERSION = 0x2a,   	/* Source version.  */
+  BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS = 0x2b,	/* DRs from dylibs.  */
+  BFD_MACH_O_LC_ENCRYPTION_INFO_64 = 0x2c,	/* Encrypted 64 bit seg info.  */
+  BFD_MACH_O_LC_LINKER_OPTIONS = 0x2d,		/* Linker options.  */
+  BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT = 0x2e,/* Optimization hints.  */
+  BFD_MACH_O_LC_VERSION_MIN_TVOS = 0x2f,	/* Minimal tvOS version.  */
+  BFD_MACH_O_LC_VERSION_MIN_WATCHOS = 0x30,	/* Minimal WatchOS version.  */
+  BFD_MACH_O_LC_NOTE = 0x31,			/* Region of arbitrary data.  */
+  BFD_MACH_O_LC_BUILD_VERSION = 0x32,		/* Generic build version.  */
 }
 bfd_mach_o_load_command_type;