Mach-O header analysis and editing
Project description
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 1.5.1
There were no ‘classifiers’ in the package metadata due to a bug in setup.py.
macholib 1.5
macholib 1.5 is a minor feature release
No longer use 2to3 to provide Python 3 support
As a side-effect of this macholib no longer supports Python 2.5 and earlier.
Adds suppport for some new macho load commands
Fix for py3k problem in macho_standalone.py
Patch by Guanqun Lu.
Fix for some issues in macho_dump.py
Patch by Nam Nguyen
Issue #10: Fix for LC_DATA_IN_CODE linker commands, without this fix py2app cannot build application bundles when the source binaries have been compiled with Xcode 4.5.
Issue #6: Fix for LC_ENCRYPTION_INFO linker commands
Use the mach header information to print the cpu type of a binary, instead of trying to deduce that from pointer width and endianness.
Changed the code because of issue #6, in which a user tries to dump a iOS binary which results in bogus output in the previous releases.
The mapping macholib.macho_dump.ARCH_MAP is undocumented and no longer used by macholib itself. It will be removed in the next release.
The command-line tools macho_find, macho_dump and macho_standalone are deprecated. Use “python -mmacholib” instead. That is:
$ python -mmacholib dump /usr/bin/grep $ python -mmacholib find ~ $ python -mmacholib standalone myapp.app
This makes it clearer which version of the tools are used.
macholib 1.4.3
macholib 1.4.3 is a minor feature release
Added strings for ‘x86_64’ and ‘ppc64’ to macholib.mach_o.CPU_TYPE_NAMES.
macho_find and macho_dump were broken in the 1.4.2 release
added ‘macholib.util.NOT_SYSTEM_FILES’, a list of files that aren’t system path’s even though they are located in system locations.
Needed to work around a bug in PySide (see issue #32 in the py2app tracker)
macholib 1.4.2
macholib 1.4.2 is a minor bugfix release
The support for new load commands that was added in 1.4.1 contained a typo that caused problems on OSX 10.7 (Lion).
macholib 1.4.1
macholib 1.4.1 is a minor feature release
Features:
Add support for a number of new MachO load commands that were added during the lifetime of OSX 10.6: LC_LOAD_UPWARD_DYLIB, LC_VERSION_MIN_MACOSX, LC_VERSION_MIN_IPHONEOS and LC_FUNCTION_STARTS.
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.
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)
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