问题
I have a static library on my Mac and curious to know if the lib was built for armV7s architecture or not? Is any command/tools available to show the supported architectures in this library?
Thank you, Kamran
回答1:
You may use otool for getting that information.
From otool's manpage
-L Display the names and version numbers of the shared libraries that the object file uses. As well as the shared library ID if the file is a shared library.
Example
> otool -L libRaptureXML_universal.a
Archive : libRaptureXML_universal.a (architecture armv7)
libRaptureXML_universal.a(RXMLElement.o) (architecture armv7):
Archive : libRaptureXML_universal.a (architecture i386)
libRaptureXML_universal.a(RXMLElement.o) (architecture i386):
回答2:
your-mac:~ yourlogin$ file /Path/to/somebinary
/Path/to/somebinary: Mach-O universal binary with 3 architectures
/Path/to/somebinary (for architecture x86_64): Mach-O 64-bit executable x86_64
/Path/to/somebinary (for architecture i386): Mach-O executable i386
/Path/to/somebinary (for architecture ppc7400): Mach-O executable ppc
回答3:
Not disagreeing with the other answers, but here's one more option: use the lipo command.
The Apple man pages for lipo
You can run lipo -info on executables, or libraries. Some examples:
minime:arc username$ lipo -info libarclite_iphonesimulator.a
input file libarclite_iphonesimulator.a is not a fat file
Non-fat file: libarclite_iphonesimulator.a is architecture: i386
minime:iPhone username$ cd HelloWorld.app/
minime:HelloWorld.app username$ lipo -info HelloWorld
Non-fat file: HelloWorld is architecture: armv7
来源：https://stackoverflow.com/questions/12537617/iosunixmac-extract-info-from-a-static-lib-regarding-supported-architectures