macholib 1.4

Mach-O header analysis and editing

macholib can be used to analyze and edit Mach-O headers, the executable format used by Mac OS X.

It’s typically used as a dependency analysis tool, and also to rewrite dylib references in Mach-O headers to be @executable_path relative.

Though this tool targets a platform specific file format, it is pure python code that is platform and endian independent.

Release history

macholib 1.4

macholib 1.4 is a feature release

Features:

• Documentation is now generated using sphinx and can be viewed at <http://packages.python.org/macholib>.

• The repository has moved to bitbucket

• There now is a testsuite

• Private functionality inside modules was renamed to a name starting with an underscore.

  Note

  if this change affects your code you are relying on undefined implementation features, please stop using private functions.

• The basic packable types in macholib.ptypes were renamed to better represent the corresponding C type. The table below lists the old an new names (the old names are still available, but are deprecated and will be removed in a future release).

  Old name	New name
  p_byte	p_int8
  p_ubyte	p_uint8
  p_short	p_int16
  p_ushort	p_uint16
  p_int	p_int32
  p_uint	p_uint32
  p_long	p_int32
  p_ulong	p_uint32
  p_longlong	p_int64
  p_ulonglong	p_uint64

  Macholib.ptypes.p_ptr is no longer present as it had an unclear definition and isn’t actually used in the codebase.

Bug fixes:

• The semantics of dyld.dyld_default_search were changed a bit, it now first searches the framework path (if appropriate) and then the linker path, irrespective of the value of the DYLD_FALLBACK* environment variables.

  Previous versions would change the search order when those variables was set, which is odd and doesn’t correspond with the documented behaviour of the system dyld.

• It is once again possible to install using python2.5

• The source distribution includes all files, this was broken due to the switch to mercurial (which confused setuptools)

macholib 1.3

macholib 1.3 is a feature release.

Features:

• Experimental Python 3.x support

  This version contains lightly tested support for Python 3.

macholib 1.2.2

macholib 1.2.2 is a bugfix release.

Bug fixes:

• Macholib should work better with 64-bit code (patch by Marc-Antoine Parent)